/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES 3.1 Module
* -------------------------------------------------
*
* Copyright 2014 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*//*!
* \file
* \brief Tessellation Tests.
*//*--------------------------------------------------------------------*/
#include "es31fTessellationTests.hpp"
#include "glsTextureTestUtil.hpp"
#include "glsShaderLibrary.hpp"
#include "glsStateQueryUtil.hpp"
#include "gluShaderProgram.hpp"
#include "gluRenderContext.hpp"
#include "gluPixelTransfer.hpp"
#include "gluDrawUtil.hpp"
#include "gluObjectWrapper.hpp"
#include "gluStrUtil.hpp"
#include "gluContextInfo.hpp"
#include "gluVarType.hpp"
#include "gluVarTypeUtil.hpp"
#include "gluCallLogWrapper.hpp"
#include "tcuTestLog.hpp"
#include "tcuRenderTarget.hpp"
#include "tcuStringTemplate.hpp"
#include "tcuSurface.hpp"
#include "tcuTextureUtil.hpp"
#include "tcuVectorUtil.hpp"
#include "tcuImageIO.hpp"
#include "tcuResource.hpp"
#include "tcuImageCompare.hpp"
#include "deRandom.hpp"
#include "deStringUtil.hpp"
#include "deSharedPtr.hpp"
#include "deUniquePtr.hpp"
#include "deString.h"
#include "deMath.h"
#include "glwEnums.hpp"
#include "glwDefs.hpp"
#include "glwFunctions.hpp"
#include <vector>
#include <string>
#include <algorithm>
#include <functional>
#include <set>
#include <limits>
using glu::ShaderProgram;
using glu::RenderContext;
using tcu::RenderTarget;
using tcu::TestLog;
using tcu::Vec2;
using tcu::Vec3;
using tcu::Vec4;
using de::Random;
using de::SharedPtr;
using std::vector;
using std::string;
using namespace glw; // For GL types.
namespace deqp
{
using gls::TextureTestUtil::RandomViewport;
namespace gles31
{
namespace Functional
{
using namespace gls::StateQueryUtil;
enum
{
MINIMUM_MAX_TESS_GEN_LEVEL = 64 //!< GL-defined minimum for GL_MAX_TESS_GEN_LEVEL.
};
static inline bool vec3XLessThan (const Vec3& a, const Vec3& b) { return a.x() < b.x(); }
template <typename IterT>
static string elemsStr (const IterT& begin, const IterT& end, int wrapLengthParam = 0, int numIndentationSpaces = 0)
{
const string baseIndentation = string(numIndentationSpaces, ' ');
const string deepIndentation = baseIndentation + string(4, ' ');
const int wrapLength = wrapLengthParam > 0 ? wrapLengthParam : std::numeric_limits<int>::max();
const int length = (int)std::distance(begin, end);
string result;
if (length > wrapLength)
result += "(amount: " + de::toString(length) + ") ";
result += string() + "{" + (length > wrapLength ? "\n"+deepIndentation : " ");
{
int index = 0;
for (IterT it = begin; it != end; ++it)
{
if (it != begin)
result += string() + ", " + (index % wrapLength == 0 ? "\n"+deepIndentation : "");
result += de::toString(*it);
index++;
}
result += length > wrapLength ? "\n"+baseIndentation : " ";
}
result += "}";
return result;
}
template <typename ContainerT>
static string containerStr (const ContainerT& c, int wrapLengthParam = 0, int numIndentationSpaces = 0)
{
return elemsStr(c.begin(), c.end(), wrapLengthParam, numIndentationSpaces);
}
template <typename T, int N>
static string arrayStr (const T (&arr)[N], int wrapLengthParam = 0, int numIndentationSpaces = 0)
{
return elemsStr(DE_ARRAY_BEGIN(arr), DE_ARRAY_END(arr), wrapLengthParam, numIndentationSpaces);
}
template <typename T, int N>
static T arrayMax (const T (&arr)[N])
{
return *std::max_element(DE_ARRAY_BEGIN(arr), DE_ARRAY_END(arr));
}
template <typename T, typename MembT>
static vector<MembT> members (const vector<T>& objs, MembT T::* membP)
{
vector<MembT> result(objs.size());
for (int i = 0; i < (int)objs.size(); i++)
result[i] = objs[i].*membP;
return result;
}
template <typename T, int N>
static vector<T> arrayToVector (const T (&arr)[N])
{
return vector<T>(DE_ARRAY_BEGIN(arr), DE_ARRAY_END(arr));
}
template <typename ContainerT, typename T>
static inline bool contains (const ContainerT& c, const T& key)
{
return c.find(key) != c.end();
}
template <int Size>
static inline tcu::Vector<bool, Size> singleTrueMask (int index)
{
DE_ASSERT(de::inBounds(index, 0, Size));
tcu::Vector<bool, Size> result;
result[index] = true;
return result;
}
static int intPow (int base, int exp)
{
DE_ASSERT(exp >= 0);
if (exp == 0)
return 1;
else
{
const int sub = intPow(base, exp/2);
if (exp % 2 == 0)
return sub*sub;
else
return sub*sub*base;
}
}
tcu::Surface getPixels (const glu::RenderContext& rCtx, int x, int y, int width, int height)
{
tcu::Surface result(width, height);
glu::readPixels(rCtx, x, y, result.getAccess());
return result;
}
tcu::Surface getPixels (const glu::RenderContext& rCtx, const RandomViewport& vp)
{
return getPixels(rCtx, vp.x, vp.y, vp.width, vp.height);
}
static inline void checkRenderTargetSize (const RenderTarget& renderTarget, int minSize)
{
if (renderTarget.getWidth() < minSize || renderTarget.getHeight() < minSize)
throw tcu::NotSupportedError("Render target width and height must be at least " + de::toString(minSize));
}
tcu::TextureLevel getPNG (const tcu::Archive& archive, const string& filename)
{
tcu::TextureLevel result;
tcu::ImageIO::loadPNG(result, archive, filename.c_str());
return result;
}
static int numBasicSubobjects (const glu::VarType& type)
{
if (type.isBasicType())
return 1;
else if (type.isArrayType())
return type.getArraySize()*numBasicSubobjects(type.getElementType());
else if (type.isStructType())
{
const glu::StructType& structType = *type.getStructPtr();
int result = 0;
for (int i = 0; i < structType.getNumMembers(); i++)
result += numBasicSubobjects(structType.getMember(i).getType());
return result;
}
else
{
DE_ASSERT(false);
return -1;
}
}
static inline int numVerticesPerPrimitive (deUint32 primitiveTypeGL)
{
switch (primitiveTypeGL)
{
case GL_POINTS: return 1;
case GL_TRIANGLES: return 3;
case GL_LINES: return 2;
default:
DE_ASSERT(false);
return -1;
}
}
static inline void setViewport (const glw::Functions& gl, const RandomViewport& vp)
{
gl.viewport(vp.x, vp.y, vp.width, vp.height);
}
static inline deUint32 getQueryResult (const glw::Functions& gl, deUint32 queryObject)
{
deUint32 result = (deUint32)-1;
gl.getQueryObjectuiv(queryObject, GL_QUERY_RESULT, &result);
TCU_CHECK(result != (deUint32)-1);
return result;
}
template <typename T>
static void readDataMapped (const glw::Functions& gl, deUint32 bufferTarget, int numElems, T* dst)
{
const int numBytes = numElems*(int)sizeof(T);
const T* const mappedData = (const T*)gl.mapBufferRange(bufferTarget, 0, numBytes, GL_MAP_READ_BIT);
GLU_EXPECT_NO_ERROR(gl.getError(), (string() + "glMapBufferRange(" + glu::getBufferTargetName((int)bufferTarget) + ", 0, " + de::toString(numBytes) + ", GL_MAP_READ_BIT)").c_str());
TCU_CHECK(mappedData != DE_NULL);
for (int i = 0; i < numElems; i++)
dst[i] = mappedData[i];
gl.unmapBuffer(bufferTarget);
}
template <typename T>
static vector<T> readDataMapped (const glw::Functions& gl, deUint32 bufferTarget, int numElems)
{
vector<T> result(numElems);
readDataMapped(gl, bufferTarget, numElems, &result[0]);
return result;
}
namespace
{
template <typename ArgT, bool res>
struct ConstantUnaryPredicate
{
bool operator() (const ArgT&) const { return res; }
};
//! Helper for handling simple, one-varying transform feedbacks.
template <typename VaryingT>
class TransformFeedbackHandler
{
public:
struct Result
{
int numPrimitives;
vector<VaryingT> varying;
Result (void) : numPrimitives(-1) {}
Result (int n, const vector<VaryingT>& v) : numPrimitives(n), varying(v) {}
};
TransformFeedbackHandler (const glu::RenderContext& renderCtx, int maxNumVertices);
Result renderAndGetPrimitives (deUint32 programGL, deUint32 tfPrimTypeGL, int numBindings, const glu::VertexArrayBinding* bindings, int numVertices) const;
private:
const glu::RenderContext& m_renderCtx;
const glu::TransformFeedback m_tf;
const glu::Buffer m_tfBuffer;
const glu::Query m_tfPrimQuery;
};
template <typename AttribType>
TransformFeedbackHandler<AttribType>::TransformFeedbackHandler (const glu::RenderContext& renderCtx, int maxNumVertices)
: m_renderCtx (renderCtx)
, m_tf (renderCtx)
, m_tfBuffer (renderCtx)
, m_tfPrimQuery (renderCtx)
{
const glw::Functions& gl = m_renderCtx.getFunctions();
// \note Room for 1 extra triangle, to detect if GL returns too many primitives.
const int bufferSize = (maxNumVertices + 3) * (int)sizeof(AttribType);
gl.bindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, *m_tfBuffer);
gl.bufferData(GL_TRANSFORM_FEEDBACK_BUFFER, bufferSize, DE_NULL, GL_DYNAMIC_READ);
}
template <typename AttribType>
typename TransformFeedbackHandler<AttribType>::Result TransformFeedbackHandler<AttribType>::renderAndGetPrimitives (deUint32 programGL, deUint32 tfPrimTypeGL, int numBindings, const glu::VertexArrayBinding* bindings, int numVertices) const
{
DE_ASSERT(tfPrimTypeGL == GL_POINTS || tfPrimTypeGL == GL_LINES || tfPrimTypeGL == GL_TRIANGLES);
const glw::Functions& gl = m_renderCtx.getFunctions();
gl.bindTransformFeedback(GL_TRANSFORM_FEEDBACK, *m_tf);
gl.bindBuffer(GL_TRANSFORM_FEEDBACK_BUFFER, *m_tfBuffer);
gl.bindBufferBase(GL_TRANSFORM_FEEDBACK_BUFFER, 0, *m_tfBuffer);
gl.beginQuery(GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN, *m_tfPrimQuery);
gl.beginTransformFeedback(tfPrimTypeGL);
glu::draw(m_renderCtx, programGL, numBindings, bindings, glu::pr::Patches(numVertices));
GLU_EXPECT_NO_ERROR(gl.getError(), "Draw failed");
gl.endTransformFeedback();
gl.endQuery(GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN);
{
const int numPrimsWritten = (int)getQueryResult(gl, *m_tfPrimQuery);
return Result(numPrimsWritten, readDataMapped<AttribType>(gl, GL_TRANSFORM_FEEDBACK_BUFFER, numPrimsWritten * numVerticesPerPrimitive(tfPrimTypeGL)));
}
}
template <typename T>
class SizeLessThan
{
public:
bool operator() (const T& a, const T& b) const { return a.size() < b.size(); }
};
//! Predicate functor for comparing structs by their members.
template <typename Pred, typename T, typename MembT>
class MemberPred
{
public:
MemberPred (MembT T::* membP) : m_membP(membP), m_pred(Pred()) {}
bool operator() (const T& a, const T& b) const { return m_pred(a.*m_membP, b.*m_membP); }
private:
MembT T::* m_membP;
Pred m_pred;
};
//! Convenience wrapper for MemberPred, because class template arguments aren't deduced based on constructor arguments.
template <template <typename> class Pred, typename T, typename MembT>
static MemberPred<Pred<MembT>, T, MembT> memberPred (MembT T::* membP) { return MemberPred<Pred<MembT>, T, MembT>(membP); }
template <typename SeqT, int Size, typename Pred>
class LexCompare
{
public:
LexCompare (void) : m_pred(Pred()) {}
bool operator() (const SeqT& a, const SeqT& b) const
{
for (int i = 0; i < Size; i++)
{
if (m_pred(a[i], b[i]))
return true;
if (m_pred(b[i], a[i]))
return false;
}
return false;
}
private:
Pred m_pred;
};
template <int Size>
class VecLexLessThan : public LexCompare<tcu::Vector<float, Size>, Size, std::less<float> >
{
};
enum TessPrimitiveType
{
TESSPRIMITIVETYPE_TRIANGLES = 0,
TESSPRIMITIVETYPE_QUADS,
TESSPRIMITIVETYPE_ISOLINES,
TESSPRIMITIVETYPE_LAST
};
enum SpacingMode
{
SPACINGMODE_EQUAL,
SPACINGMODE_FRACTIONAL_ODD,
SPACINGMODE_FRACTIONAL_EVEN,
SPACINGMODE_LAST
};
enum Winding
{
WINDING_CCW = 0,
WINDING_CW,
WINDING_LAST
};
static inline const char* getTessPrimitiveTypeShaderName (TessPrimitiveType type)
{
switch (type)
{
case TESSPRIMITIVETYPE_TRIANGLES: return "triangles";
case TESSPRIMITIVETYPE_QUADS: return "quads";
case TESSPRIMITIVETYPE_ISOLINES: return "isolines";
default:
DE_ASSERT(false);
return DE_NULL;
}
}
static inline const char* getSpacingModeShaderName (SpacingMode mode)
{
switch (mode)
{
case SPACINGMODE_EQUAL: return "equal_spacing";
case SPACINGMODE_FRACTIONAL_ODD: return "fractional_odd_spacing";
case SPACINGMODE_FRACTIONAL_EVEN: return "fractional_even_spacing";
default:
DE_ASSERT(false);
return DE_NULL;
}
}
static inline const char* getWindingShaderName (Winding winding)
{
switch (winding)
{
case WINDING_CCW: return "ccw";
case WINDING_CW: return "cw";
default:
DE_ASSERT(false);
return DE_NULL;
}
}
static inline string getTessellationEvaluationInLayoutString (TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode=false)
{
return string() + "layout (" + getTessPrimitiveTypeShaderName(primType)
+ ", " + getSpacingModeShaderName(spacing)
+ ", " + getWindingShaderName(winding)
+ (usePointMode ? ", point_mode" : "")
+ ") in;\n";
}
static inline string getTessellationEvaluationInLayoutString (TessPrimitiveType primType, SpacingMode spacing, bool usePointMode=false)
{
return string() + "layout (" + getTessPrimitiveTypeShaderName(primType)
+ ", " + getSpacingModeShaderName(spacing)
+ (usePointMode ? ", point_mode" : "")
+ ") in;\n";
}
static inline string getTessellationEvaluationInLayoutString (TessPrimitiveType primType, Winding winding, bool usePointMode=false)
{
return string() + "layout (" + getTessPrimitiveTypeShaderName(primType)
+ ", " + getWindingShaderName(winding)
+ (usePointMode ? ", point_mode" : "")
+ ") in;\n";
}
static inline string getTessellationEvaluationInLayoutString (TessPrimitiveType primType, bool usePointMode=false)
{
return string() + "layout (" + getTessPrimitiveTypeShaderName(primType)
+ (usePointMode ? ", point_mode" : "")
+ ") in;\n";
}
static inline deUint32 outputPrimitiveTypeGL (TessPrimitiveType tessPrimType, bool usePointMode)
{
if (usePointMode)
return GL_POINTS;
else
{
switch (tessPrimType)
{
case TESSPRIMITIVETYPE_TRIANGLES: return GL_TRIANGLES;
case TESSPRIMITIVETYPE_QUADS: return GL_TRIANGLES;
case TESSPRIMITIVETYPE_ISOLINES: return GL_LINES;
default:
DE_ASSERT(false);
return (deUint32)-1;
}
}
}
static inline int numInnerTessellationLevels (TessPrimitiveType primType)
{
switch (primType)
{
case TESSPRIMITIVETYPE_TRIANGLES: return 1;
case TESSPRIMITIVETYPE_QUADS: return 2;
case TESSPRIMITIVETYPE_ISOLINES: return 0;
default: DE_ASSERT(false); return -1;
}
}
static inline int numOuterTessellationLevels (TessPrimitiveType primType)
{
switch (primType)
{
case TESSPRIMITIVETYPE_TRIANGLES: return 3;
case TESSPRIMITIVETYPE_QUADS: return 4;
case TESSPRIMITIVETYPE_ISOLINES: return 2;
default: DE_ASSERT(false); return -1;
}
}
static string tessellationLevelsString (const float* inner, int numInner, const float* outer, int numOuter)
{
DE_ASSERT(numInner >= 0 && numOuter >= 0);
return "inner: " + elemsStr(inner, inner+numInner) + ", outer: " + elemsStr(outer, outer+numOuter);
}
static string tessellationLevelsString (const float* inner, const float* outer, TessPrimitiveType primType)
{
return tessellationLevelsString(inner, numInnerTessellationLevels(primType), outer, numOuterTessellationLevels(primType));
}
static string tessellationLevelsString (const float* inner, const float* outer)
{
return tessellationLevelsString(inner, 2, outer, 4);
}
static inline float getClampedTessLevel (SpacingMode mode, float tessLevel)
{
switch (mode)
{
case SPACINGMODE_EQUAL: return de::max(1.0f, tessLevel);
case SPACINGMODE_FRACTIONAL_ODD: return de::max(1.0f, tessLevel);
case SPACINGMODE_FRACTIONAL_EVEN: return de::max(2.0f, tessLevel);
default:
DE_ASSERT(false);
return -1.0f;
}
}
static inline int getRoundedTessLevel (SpacingMode mode, float clampedTessLevel)
{
int result = (int)deFloatCeil(clampedTessLevel);
switch (mode)
{
case SPACINGMODE_EQUAL: break;
case SPACINGMODE_FRACTIONAL_ODD: result += 1 - result % 2; break;
case SPACINGMODE_FRACTIONAL_EVEN: result += result % 2; break;
default:
DE_ASSERT(false);
}
DE_ASSERT(de::inRange<int>(result, 1, MINIMUM_MAX_TESS_GEN_LEVEL));
return result;
}
static int getClampedRoundedTessLevel (SpacingMode mode, float tessLevel)
{
return getRoundedTessLevel(mode, getClampedTessLevel(mode, tessLevel));
}
//! A description of an outer edge of a triangle, quad or isolines.
//! An outer edge can be described by the index of a u/v/w coordinate
//! and the coordinate's value along that edge.
struct OuterEdgeDescription
{
int constantCoordinateIndex;
float constantCoordinateValueChoices[2];
int numConstantCoordinateValueChoices;
OuterEdgeDescription (int i, float c0) : constantCoordinateIndex(i), numConstantCoordinateValueChoices(1) { constantCoordinateValueChoices[0] = c0; }
OuterEdgeDescription (int i, float c0, float c1) : constantCoordinateIndex(i), numConstantCoordinateValueChoices(2) { constantCoordinateValueChoices[0] = c0; constantCoordinateValueChoices[1] = c1; }
string description (void) const
{
static const char* const coordinateNames[] = { "u", "v", "w" };
string result;
for (int i = 0; i < numConstantCoordinateValueChoices; i++)
result += string() + (i > 0 ? " or " : "") + coordinateNames[constantCoordinateIndex] + "=" + de::toString(constantCoordinateValueChoices[i]);
return result;
}
bool contains (const Vec3& v) const
{
for (int i = 0; i < numConstantCoordinateValueChoices; i++)
if (v[constantCoordinateIndex] == constantCoordinateValueChoices[i])
return true;
return false;
}
};
static vector<OuterEdgeDescription> outerEdgeDescriptions (TessPrimitiveType primType)
{
static const OuterEdgeDescription triangleOuterEdgeDescriptions[3] =
{
OuterEdgeDescription(0, 0.0f),
OuterEdgeDescription(1, 0.0f),
OuterEdgeDescription(2, 0.0f)
};
static const OuterEdgeDescription quadOuterEdgeDescriptions[4] =
{
OuterEdgeDescription(0, 0.0f),
OuterEdgeDescription(1, 0.0f),
OuterEdgeDescription(0, 1.0f),
OuterEdgeDescription(1, 1.0f)
};
static const OuterEdgeDescription isolinesOuterEdgeDescriptions[1] =
{
OuterEdgeDescription(0, 0.0f, 1.0f),
};
switch (primType)
{
case TESSPRIMITIVETYPE_TRIANGLES: return arrayToVector(triangleOuterEdgeDescriptions);
case TESSPRIMITIVETYPE_QUADS: return arrayToVector(quadOuterEdgeDescriptions);
case TESSPRIMITIVETYPE_ISOLINES: return arrayToVector(isolinesOuterEdgeDescriptions);
default: DE_ASSERT(false); return vector<OuterEdgeDescription>();
}
}
// \note The tessellation coordinates generated by this function could break some of the rules given in the spec (e.g. it may not exactly hold that u+v+w == 1.0f, or [uvw] + (1.0f-[uvw]) == 1.0f).
static vector<Vec3> generateReferenceTriangleTessCoords (SpacingMode spacingMode, int inner, int outer0, int outer1, int outer2)
{
vector<Vec3> tessCoords;
if (inner == 1)
{
if (outer0 == 1 && outer1 == 1 && outer2 == 1)
{
tessCoords.push_back(Vec3(1.0f, 0.0f, 0.0f));
tessCoords.push_back(Vec3(0.0f, 1.0f, 0.0f));
tessCoords.push_back(Vec3(0.0f, 0.0f, 1.0f));
return tessCoords;
}
else
return generateReferenceTriangleTessCoords(spacingMode, spacingMode == SPACINGMODE_FRACTIONAL_ODD ? 3 : 2,
outer0, outer1, outer2);
}
else
{
for (int i = 0; i < outer0; i++) { const float v = (float)i / (float)outer0; tessCoords.push_back(Vec3( 0.0f, v, 1.0f - v)); }
for (int i = 0; i < outer1; i++) { const float v = (float)i / (float)outer1; tessCoords.push_back(Vec3(1.0f - v, 0.0f, v)); }
for (int i = 0; i < outer2; i++) { const float v = (float)i / (float)outer2; tessCoords.push_back(Vec3( v, 1.0f - v, 0.0f)); }
const int numInnerTriangles = inner/2;
for (int innerTriangleNdx = 0; innerTriangleNdx < numInnerTriangles; innerTriangleNdx++)
{
const int curInnerTriangleLevel = inner - 2*(innerTriangleNdx+1);
if (curInnerTriangleLevel == 0)
tessCoords.push_back(Vec3(1.0f/3.0f));
else
{
const float minUVW = (float)(2 * (innerTriangleNdx + 1)) / (float)(3 * inner);
const float maxUVW = 1.0f - 2.0f*minUVW;
const Vec3 corners[3] =
{
Vec3(maxUVW, minUVW, minUVW),
Vec3(minUVW, maxUVW, minUVW),
Vec3(minUVW, minUVW, maxUVW)
};
for (int i = 0; i < curInnerTriangleLevel; i++)
{
const float f = (float)i / (float)curInnerTriangleLevel;
for (int j = 0; j < 3; j++)
tessCoords.push_back((1.0f - f)*corners[j] + f*corners[(j+1)%3]);
}
}
}
return tessCoords;
}
}
static int referenceTriangleNonPointModePrimitiveCount (SpacingMode spacingMode, int inner, int outer0, int outer1, int outer2)
{
if (inner == 1)
{
if (outer0 == 1 && outer1 == 1 && outer2 == 1)
return 1;
else
return referenceTriangleNonPointModePrimitiveCount(spacingMode, spacingMode == SPACINGMODE_FRACTIONAL_ODD ? 3 : 2,
outer0, outer1, outer2);
}
else
{
int result = outer0 + outer1 + outer2;
const int numInnerTriangles = inner/2;
for (int innerTriangleNdx = 0; innerTriangleNdx < numInnerTriangles; innerTriangleNdx++)
{
const int curInnerTriangleLevel = inner - 2*(innerTriangleNdx+1);
if (curInnerTriangleLevel == 1)
result += 4;
else
result += 2*3*curInnerTriangleLevel;
}
return result;
}
}
// \note The tessellation coordinates generated by this function could break some of the rules given in the spec (e.g. it may not exactly hold that [uv] + (1.0f-[uv]) == 1.0f).
static vector<Vec3> generateReferenceQuadTessCoords (SpacingMode spacingMode, int inner0, int inner1, int outer0, int outer1, int outer2, int outer3)
{
vector<Vec3> tessCoords;
if (inner0 == 1 || inner1 == 1)
{
if (inner0 == 1 && inner1 == 1 && outer0 == 1 && outer1 == 1 && outer2 == 1 && outer3 == 1)
{
tessCoords.push_back(Vec3(0.0f, 0.0f, 0.0f));
tessCoords.push_back(Vec3(1.0f, 0.0f, 0.0f));
tessCoords.push_back(Vec3(0.0f, 1.0f, 0.0f));
tessCoords.push_back(Vec3(1.0f, 1.0f, 0.0f));
return tessCoords;
}
else
return generateReferenceQuadTessCoords(spacingMode, inner0 > 1 ? inner0 : spacingMode == SPACINGMODE_FRACTIONAL_ODD ? 3 : 2,
inner1 > 1 ? inner1 : spacingMode == SPACINGMODE_FRACTIONAL_ODD ? 3 : 2,
outer0, outer1, outer2, outer3);
}
else
{
for (int i = 0; i < outer0; i++) { const float v = (float)i / (float)outer0; tessCoords.push_back(Vec3(0.0f, v, 0.0f)); }
for (int i = 0; i < outer1; i++) { const float v = (float)i / (float)outer1; tessCoords.push_back(Vec3(1.0f-v, 0.0f, 0.0f)); }
for (int i = 0; i < outer2; i++) { const float v = (float)i / (float)outer2; tessCoords.push_back(Vec3(1.0f, 1.0f-v, 0.0f)); }
for (int i = 0; i < outer3; i++) { const float v = (float)i / (float)outer3; tessCoords.push_back(Vec3(v, 1.0f, 0.0f)); }
for (int innerVtxY = 0; innerVtxY < inner1-1; innerVtxY++)
for (int innerVtxX = 0; innerVtxX < inner0-1; innerVtxX++)
tessCoords.push_back(Vec3((float)(innerVtxX + 1) / (float)inner0,
(float)(innerVtxY + 1) / (float)inner1,
0.0f));
return tessCoords;
}
}
static int referenceQuadNonPointModePrimitiveCount (SpacingMode spacingMode, int inner0, int inner1, int outer0, int outer1, int outer2, int outer3)
{
vector<Vec3> tessCoords;
if (inner0 == 1 || inner1 == 1)
{
if (inner0 == 1 && inner1 == 1 && outer0 == 1 && outer1 == 1 && outer2 == 1 && outer3 == 1)
return 2;
else
return referenceQuadNonPointModePrimitiveCount(spacingMode, inner0 > 1 ? inner0 : spacingMode == SPACINGMODE_FRACTIONAL_ODD ? 3 : 2,
inner1 > 1 ? inner1 : spacingMode == SPACINGMODE_FRACTIONAL_ODD ? 3 : 2,
outer0, outer1, outer2, outer3);
}
else
return 2*(inner0-2)*(inner1-2) + 2*(inner0-2) + 2*(inner1-2) + outer0+outer1+outer2+outer3;
}
// \note The tessellation coordinates generated by this function could break some of the rules given in the spec (e.g. it may not exactly hold that [uv] + (1.0f-[uv]) == 1.0f).
static vector<Vec3> generateReferenceIsolineTessCoords (int outer0, int outer1)
{
vector<Vec3> tessCoords;
for (int y = 0; y < outer0; y++)
for (int x = 0; x < outer1+1; x++)
tessCoords.push_back(Vec3((float)x / (float)outer1,
(float)y / (float)outer0,
0.0f));
return tessCoords;
}
static int referenceIsolineNonPointModePrimitiveCount (int outer0, int outer1)
{
return outer0*outer1;
}
static void getClampedRoundedTriangleTessLevels (SpacingMode spacingMode, const float* innerSrc, const float* outerSrc, int* innerDst, int *outerDst)
{
innerDst[0] = getClampedRoundedTessLevel(spacingMode, innerSrc[0]);
for (int i = 0; i < 3; i++)
outerDst[i] = getClampedRoundedTessLevel(spacingMode, outerSrc[i]);
}
static void getClampedRoundedQuadTessLevels (SpacingMode spacingMode, const float* innerSrc, const float* outerSrc, int* innerDst, int *outerDst)
{
for (int i = 0; i < 2; i++)
innerDst[i] = getClampedRoundedTessLevel(spacingMode, innerSrc[i]);
for (int i = 0; i < 4; i++)
outerDst[i] = getClampedRoundedTessLevel(spacingMode, outerSrc[i]);
}
static void getClampedRoundedIsolineTessLevels (SpacingMode spacingMode, const float* outerSrc, int* outerDst)
{
outerDst[0] = getClampedRoundedTessLevel(SPACINGMODE_EQUAL, outerSrc[0]);
outerDst[1] = getClampedRoundedTessLevel(spacingMode, outerSrc[1]);
}
static inline bool isPatchDiscarded (TessPrimitiveType primitiveType, const float* outerLevels)
{
const int numOuterLevels = numOuterTessellationLevels(primitiveType);
for (int i = 0; i < numOuterLevels; i++)
if (outerLevels[i] <= 0.0f)
return true;
return false;
}
static vector<Vec3> generateReferenceTessCoords (TessPrimitiveType primitiveType, SpacingMode spacingMode, const float* innerLevels, const float* outerLevels)
{
if (isPatchDiscarded(primitiveType, outerLevels))
return vector<Vec3>();
switch (primitiveType)
{
case TESSPRIMITIVETYPE_TRIANGLES:
{
int inner;
int outer[3];
getClampedRoundedTriangleTessLevels(spacingMode, innerLevels, outerLevels, &inner, &outer[0]);
if (spacingMode != SPACINGMODE_EQUAL)
{
// \note For fractional spacing modes, exact results are implementation-defined except in special cases.
DE_ASSERT(de::abs(innerLevels[0] - (float)inner) < 0.001f);
for (int i = 0; i < 3; i++)
DE_ASSERT(de::abs(outerLevels[i] - (float)outer[i]) < 0.001f);
DE_ASSERT(inner > 1 || (outer[0] == 1 && outer[1] == 1 && outer[2] == 1));
}
return generateReferenceTriangleTessCoords(spacingMode, inner, outer[0], outer[1], outer[2]);
}
case TESSPRIMITIVETYPE_QUADS:
{
int inner[2];
int outer[4];
getClampedRoundedQuadTessLevels(spacingMode, innerLevels, outerLevels, &inner[0], &outer[0]);
if (spacingMode != SPACINGMODE_EQUAL)
{
// \note For fractional spacing modes, exact results are implementation-defined except in special cases.
for (int i = 0; i < 2; i++)
DE_ASSERT(de::abs(innerLevels[i] - (float)inner[i]) < 0.001f);
for (int i = 0; i < 4; i++)
DE_ASSERT(de::abs(outerLevels[i] - (float)outer[i]) < 0.001f);
DE_ASSERT((inner[0] > 1 && inner[1] > 1) || (inner[0] == 1 && inner[1] == 1 && outer[0] == 1 && outer[1] == 1 && outer[2] == 1 && outer[3] == 1));
}
return generateReferenceQuadTessCoords(spacingMode, inner[0], inner[1], outer[0], outer[1], outer[2], outer[3]);
}
case TESSPRIMITIVETYPE_ISOLINES:
{
int outer[2];
getClampedRoundedIsolineTessLevels(spacingMode, &outerLevels[0], &outer[0]);
if (spacingMode != SPACINGMODE_EQUAL)
{
// \note For fractional spacing modes, exact results are implementation-defined except in special cases.
DE_ASSERT(de::abs(outerLevels[1] - (float)outer[1]) < 0.001f);
}
return generateReferenceIsolineTessCoords(outer[0], outer[1]);
}
default:
DE_ASSERT(false);
return vector<Vec3>();
}
}
static int referencePointModePrimitiveCount (TessPrimitiveType primitiveType, SpacingMode spacingMode, const float* innerLevels, const float* outerLevels)
{
if (isPatchDiscarded(primitiveType, outerLevels))
return 0;
switch (primitiveType)
{
case TESSPRIMITIVETYPE_TRIANGLES:
{
int inner;
int outer[3];
getClampedRoundedTriangleTessLevels(spacingMode, innerLevels, outerLevels, &inner, &outer[0]);
return (int)generateReferenceTriangleTessCoords(spacingMode, inner, outer[0], outer[1], outer[2]).size();
}
case TESSPRIMITIVETYPE_QUADS:
{
int inner[2];
int outer[4];
getClampedRoundedQuadTessLevels(spacingMode, innerLevels, outerLevels, &inner[0], &outer[0]);
return (int)generateReferenceQuadTessCoords(spacingMode, inner[0], inner[1], outer[0], outer[1], outer[2], outer[3]).size();
}
case TESSPRIMITIVETYPE_ISOLINES:
{
int outer[2];
getClampedRoundedIsolineTessLevels(spacingMode, &outerLevels[0], &outer[0]);
return (int)generateReferenceIsolineTessCoords(outer[0], outer[1]).size();
}
default:
DE_ASSERT(false);
return -1;
}
}
static int referenceNonPointModePrimitiveCount (TessPrimitiveType primitiveType, SpacingMode spacingMode, const float* innerLevels, const float* outerLevels)
{
if (isPatchDiscarded(primitiveType, outerLevels))
return 0;
switch (primitiveType)
{
case TESSPRIMITIVETYPE_TRIANGLES:
{
int inner;
int outer[3];
getClampedRoundedTriangleTessLevels(spacingMode, innerLevels, outerLevels, &inner, &outer[0]);
return referenceTriangleNonPointModePrimitiveCount(spacingMode, inner, outer[0], outer[1], outer[2]);
}
case TESSPRIMITIVETYPE_QUADS:
{
int inner[2];
int outer[4];
getClampedRoundedQuadTessLevels(spacingMode, innerLevels, outerLevels, &inner[0], &outer[0]);
return referenceQuadNonPointModePrimitiveCount(spacingMode, inner[0], inner[1], outer[0], outer[1], outer[2], outer[3]);
}
case TESSPRIMITIVETYPE_ISOLINES:
{
int outer[2];
getClampedRoundedIsolineTessLevels(spacingMode, &outerLevels[0], &outer[0]);
return referenceIsolineNonPointModePrimitiveCount(outer[0], outer[1]);
}
default:
DE_ASSERT(false);
return -1;
}
}
static int referencePrimitiveCount (TessPrimitiveType primitiveType, SpacingMode spacingMode, bool usePointMode, const float* innerLevels, const float* outerLevels)
{
return usePointMode ? referencePointModePrimitiveCount (primitiveType, spacingMode, innerLevels, outerLevels)
: referenceNonPointModePrimitiveCount (primitiveType, spacingMode, innerLevels, outerLevels);
}
static int referenceVertexCount (TessPrimitiveType primitiveType, SpacingMode spacingMode, bool usePointMode, const float* innerLevels, const float* outerLevels)
{
return referencePrimitiveCount(primitiveType, spacingMode, usePointMode, innerLevels, outerLevels)
* numVerticesPerPrimitive(outputPrimitiveTypeGL(primitiveType, usePointMode));
}
//! Helper for calling referenceVertexCount multiple times with different tessellation levels.
//! \note Levels contains inner and outer levels, per patch, in order IIOOOO. The full 6 levels must always be present, irrespective of primitiveType.
static int multiplePatchReferenceVertexCount (TessPrimitiveType primitiveType, SpacingMode spacingMode, bool usePointMode, const float* levels, int numPatches)
{
int result = 0;
for (int patchNdx = 0; patchNdx < numPatches; patchNdx++)
result += referenceVertexCount(primitiveType, spacingMode, usePointMode, &levels[6*patchNdx + 0], &levels[6*patchNdx + 2]);
return result;
}
vector<float> generateRandomPatchTessLevels (int numPatches, int constantOuterLevelIndex, float constantOuterLevel, de::Random& rnd)
{
vector<float> tessLevels(numPatches*6);
for (int patchNdx = 0; patchNdx < numPatches; patchNdx++)
{
float* const inner = &tessLevels[patchNdx*6 + 0];
float* const outer = &tessLevels[patchNdx*6 + 2];
for (int j = 0; j < 2; j++)
inner[j] = rnd.getFloat(1.0f, 62.0f);
for (int j = 0; j < 4; j++)
outer[j] = j == constantOuterLevelIndex ? constantOuterLevel : rnd.getFloat(1.0f, 62.0f);
}
return tessLevels;
}
static inline void drawPoint (tcu::Surface& dst, int centerX, int centerY, const tcu::RGBA& color, int size)
{
const int width = dst.getWidth();
const int height = dst.getHeight();
DE_ASSERT(de::inBounds(centerX, 0, width) && de::inBounds(centerY, 0, height));
DE_ASSERT(size > 0);
for (int yOff = -((size-1)/2); yOff <= size/2; yOff++)
for (int xOff = -((size-1)/2); xOff <= size/2; xOff++)
{
const int pixX = centerX + xOff;
const int pixY = centerY + yOff;
if (de::inBounds(pixX, 0, width) && de::inBounds(pixY, 0, height))
dst.setPixel(pixX, pixY, color);
}
}
static void drawTessCoordPoint (tcu::Surface& dst, TessPrimitiveType primitiveType, const Vec3& pt, const tcu::RGBA& color, int size)
{
// \note These coordinates should match the description in the log message in TessCoordCase::iterate.
static const Vec2 triangleCorners[3] =
{
Vec2(0.95f, 0.95f),
Vec2(0.5f, 0.95f - 0.9f*deFloatSqrt(3.0f/4.0f)),
Vec2(0.05f, 0.95f)
};
static const float quadIsolineLDRU[4] =
{
0.1f, 0.9f, 0.9f, 0.1f
};
const Vec2 dstPos = primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? pt.x()*triangleCorners[0]
+ pt.y()*triangleCorners[1]
+ pt.z()*triangleCorners[2]
: primitiveType == TESSPRIMITIVETYPE_QUADS ||
primitiveType == TESSPRIMITIVETYPE_ISOLINES ? Vec2((1.0f - pt.x())*quadIsolineLDRU[0] + pt.x()*quadIsolineLDRU[2],
(1.0f - pt.y())*quadIsolineLDRU[1] + pt.y()*quadIsolineLDRU[3])
: Vec2(-1.0f);
drawPoint(dst, (int)(dstPos.x() * (float)dst.getWidth()), (int)(dstPos.y() * (float)dst.getHeight()), color, size);
}
static void drawTessCoordVisualization (tcu::Surface& dst, TessPrimitiveType primitiveType, const vector<Vec3>& coords)
{
const int imageWidth = 256;
const int imageHeight = 256;
dst.setSize(imageWidth, imageHeight);
tcu::clear(dst.getAccess(), tcu::Vec4(0.0f, 0.0f, 0.0f, 1.0f));
for (int i = 0; i < (int)coords.size(); i++)
drawTessCoordPoint(dst, primitiveType, coords[i], tcu::RGBA::white(), 2);
}
static int binarySearchFirstVec3WithXAtLeast (const vector<Vec3>& sorted, float x)
{
const Vec3 ref(x, 0.0f, 0.0f);
const vector<Vec3>::const_iterator first = std::lower_bound(sorted.begin(), sorted.end(), ref, vec3XLessThan);
if (first == sorted.end())
return -1;
return (int)std::distance(sorted.begin(), first);
}
template <typename T, typename P>
static vector<T> sorted (const vector<T>& unsorted, P pred)
{
vector<T> result = unsorted;
std::sort(result.begin(), result.end(), pred);
return result;
}
template <typename T>
static vector<T> sorted (const vector<T>& unsorted)
{
vector<T> result = unsorted;
std::sort(result.begin(), result.end());
return result;
}
// Check that all points in subset are (approximately) present also in superset.
static bool oneWayComparePointSets (TestLog& log,
tcu::Surface& errorDst,
TessPrimitiveType primitiveType,
const vector<Vec3>& subset,
const vector<Vec3>& superset,
const char* subsetName,
const char* supersetName,
const tcu::RGBA& errorColor)
{
const vector<Vec3> supersetSorted = sorted(superset, vec3XLessThan);
const float epsilon = 0.01f;
const int maxNumFailurePrints = 5;
int numFailuresDetected = 0;
for (int subNdx = 0; subNdx < (int)subset.size(); subNdx++)
{
const Vec3& subPt = subset[subNdx];
bool matchFound = false;
{
// Binary search the index of the first point in supersetSorted with x in the [subPt.x() - epsilon, subPt.x() + epsilon] range.
const Vec3 matchMin = subPt - epsilon;
const Vec3 matchMax = subPt + epsilon;
int firstCandidateNdx = binarySearchFirstVec3WithXAtLeast(supersetSorted, matchMin.x());
if (firstCandidateNdx >= 0)
{
// Compare subPt to all points in supersetSorted with x in the [subPt.x() - epsilon, subPt.x() + epsilon] range.
for (int superNdx = firstCandidateNdx; superNdx < (int)supersetSorted.size() && supersetSorted[superNdx].x() <= matchMax.x(); superNdx++)
{
const Vec3& superPt = supersetSorted[superNdx];
if (tcu::boolAll(tcu::greaterThanEqual (superPt, matchMin)) &&
tcu::boolAll(tcu::lessThanEqual (superPt, matchMax)))
{
matchFound = true;
break;
}
}
}
}
if (!matchFound)
{
numFailuresDetected++;
if (numFailuresDetected < maxNumFailurePrints)
log << TestLog::Message << "Failure: no matching " << supersetName << " point found for " << subsetName << " point " << subPt << TestLog::EndMessage;
else if (numFailuresDetected == maxNumFailurePrints)
log << TestLog::Message << "Note: More errors follow" << TestLog::EndMessage;
drawTessCoordPoint(errorDst, primitiveType, subPt, errorColor, 4);
}
}
return numFailuresDetected == 0;
}
static bool compareTessCoords (TestLog& log, TessPrimitiveType primitiveType, const vector<Vec3>& refCoords, const vector<Vec3>& resCoords)
{
tcu::Surface refVisual;
tcu::Surface resVisual;
bool success = true;
drawTessCoordVisualization(refVisual, primitiveType, refCoords);
drawTessCoordVisualization(resVisual, primitiveType, resCoords);
// Check that all points in reference also exist in result.
success = oneWayComparePointSets(log, refVisual, primitiveType, refCoords, resCoords, "reference", "result", tcu::RGBA::blue()) && success;
// Check that all points in result also exist in reference.
success = oneWayComparePointSets(log, resVisual, primitiveType, resCoords, refCoords, "result", "reference", tcu::RGBA::red()) && success;
if (!success)
{
log << TestLog::Message << "Note: in the following reference visualization, points that are missing in result point set are blue (if any)" << TestLog::EndMessage
<< TestLog::Image("RefTessCoordVisualization", "Reference tessCoord visualization", refVisual)
<< TestLog::Message << "Note: in the following result visualization, points that are missing in reference point set are red (if any)" << TestLog::EndMessage;
}
log << TestLog::Image("ResTessCoordVisualization", "Result tessCoord visualization", resVisual);
return success;
}
namespace VerifyFractionalSpacingSingleInternal
{
struct Segment
{
int index; //!< Index of left coordinate in sortedXCoords.
float length;
Segment (void) : index(-1), length(-1.0f) {}
Segment (int index_, float length_) : index(index_), length(length_) {}
static vector<float> lengths (const vector<Segment>& segments) { return members(segments, &Segment::length); }
};
}
/*--------------------------------------------------------------------*//*!
* \brief Verify fractional spacing conditions for a single line
*
* Verify that the splitting of an edge (resulting from e.g. an isoline
* with outer levels { 1.0, tessLevel }) with a given fractional spacing
* mode fulfills certain conditions given in the spec.
*
* Note that some conditions can't be checked from just one line
* (specifically, that the additional segment decreases monotonically
* length and the requirement that the additional segments be placed
* identically for identical values of clamped level).
*
* Therefore, the function stores some values to additionalSegmentLengthDst
* and additionalSegmentLocationDst that can later be given to
* verifyFractionalSpacingMultiple(). A negative value in length means that
* no additional segments are present, i.e. there's just one segment.
* A negative value in location means that the value wasn't determinable,
* i.e. all segments had same length.
* The values are not stored if false is returned.
*//*--------------------------------------------------------------------*/
static bool verifyFractionalSpacingSingle (TestLog& log, SpacingMode spacingMode, float tessLevel, const vector<float>& coords, float& additionalSegmentLengthDst, int& additionalSegmentLocationDst)
{
using namespace VerifyFractionalSpacingSingleInternal;
DE_ASSERT(spacingMode == SPACINGMODE_FRACTIONAL_ODD || spacingMode == SPACINGMODE_FRACTIONAL_EVEN);
const float clampedLevel = getClampedTessLevel(spacingMode, tessLevel);
const int finalLevel = getRoundedTessLevel(spacingMode, clampedLevel);
const vector<float> sortedCoords = sorted(coords);
string failNote = "Note: tessellation level is " + de::toString(tessLevel) + "\nNote: sorted coordinates are:\n " + containerStr(sortedCoords);
if ((int)coords.size() != finalLevel + 1)
{
log << TestLog::Message << "Failure: number of vertices is " << coords.size() << "; expected " << finalLevel + 1
<< " (clamped tessellation level is " << clampedLevel << ")"
<< "; final level (clamped level rounded up to " << (spacingMode == SPACINGMODE_FRACTIONAL_EVEN ? "even" : "odd") << ") is " << finalLevel
<< " and should equal the number of segments, i.e. number of vertices minus 1" << TestLog::EndMessage
<< TestLog::Message << failNote << TestLog::EndMessage;
return false;
}
if (sortedCoords[0] != 0.0f || sortedCoords.back() != 1.0f)
{
log << TestLog::Message << "Failure: smallest coordinate should be 0.0 and biggest should be 1.0" << TestLog::EndMessage
<< TestLog::Message << failNote << TestLog::EndMessage;
return false;
}
{
vector<Segment> segments(finalLevel);
for (int i = 0; i < finalLevel; i++)
segments[i] = Segment(i, sortedCoords[i+1] - sortedCoords[i]);
failNote += "\nNote: segment lengths are, from left to right:\n " + containerStr(Segment::lengths(segments));
{
// Divide segments to two different groups based on length.
vector<Segment> segmentsA;
vector<Segment> segmentsB;
segmentsA.push_back(segments[0]);
for (int segNdx = 1; segNdx < (int)segments.size(); segNdx++)
{
const float epsilon = 0.001f;
const Segment& seg = segments[segNdx];
if (de::abs(seg.length - segmentsA[0].length) < epsilon)
segmentsA.push_back(seg);
else if (segmentsB.empty() || de::abs(seg.length - segmentsB[0].length) < epsilon)
segmentsB.push_back(seg);
else
{
log << TestLog::Message << "Failure: couldn't divide segments to 2 groups by length; "
<< "e.g. segment of length " << seg.length << " isn't approximately equal to either "
<< segmentsA[0].length << " or " << segmentsB[0].length << TestLog::EndMessage
<< TestLog::Message << failNote << TestLog::EndMessage;
return false;
}
}
if (clampedLevel == (float)finalLevel)
{
// All segments should be of equal length.
if (!segmentsA.empty() && !segmentsB.empty())
{
log << TestLog::Message << "Failure: clamped and final tessellation level are equal, but not all segments are of equal length." << TestLog::EndMessage
<< TestLog::Message << failNote << TestLog::EndMessage;
return false;
}
}
if (segmentsA.empty() || segmentsB.empty()) // All segments have same length. This is ok.
{
additionalSegmentLengthDst = segments.size() == 1 ? -1.0f : segments[0].length;
additionalSegmentLocationDst = -1;
return true;
}
if (segmentsA.size() != 2 && segmentsB.size() != 2)
{
log << TestLog::Message << "Failure: when dividing the segments to 2 groups by length, neither of the two groups has exactly 2 or 0 segments in it" << TestLog::EndMessage
<< TestLog::Message << failNote << TestLog::EndMessage;
return false;
}
// For convenience, arrange so that the 2-segment group is segmentsB.
if (segmentsB.size() != 2)
std::swap(segmentsA, segmentsB);
// \note For 4-segment lines both segmentsA and segmentsB have 2 segments each.
// Thus, we can't be sure which ones were meant as the additional segments.
// We give the benefit of the doubt by assuming that they're the shorter
// ones (as they should).
if (segmentsA.size() != 2)
{
if (segmentsB[0].length > segmentsA[0].length + 0.001f)
{
log << TestLog::Message << "Failure: the two additional segments are longer than the other segments" << TestLog::EndMessage
<< TestLog::Message << failNote << TestLog::EndMessage;
return false;
}
}
else
{
// We have 2 segmentsA and 2 segmentsB, ensure segmentsB has the shorter lengths
if (segmentsB[0].length > segmentsA[0].length)
std::swap(segmentsA, segmentsB);
}
// Check that the additional segments are placed symmetrically.
if (segmentsB[0].index + segmentsB[1].index + 1 != (int)segments.size())
{
log << TestLog::Message << "Failure: the two additional segments aren't placed symmetrically; "
<< "one is at index " << segmentsB[0].index << " and other is at index " << segmentsB[1].index
<< " (note: the two indexes should sum to " << (int)segments.size()-1 << ", i.e. numberOfSegments-1)" << TestLog::EndMessage
<< TestLog::Message << failNote << TestLog::EndMessage;
return false;
}
additionalSegmentLengthDst = segmentsB[0].length;
if (segmentsA.size() != 2)
additionalSegmentLocationDst = de::min(segmentsB[0].index, segmentsB[1].index);
else
additionalSegmentLocationDst = segmentsB[0].length < segmentsA[0].length - 0.001f ? de::min(segmentsB[0].index, segmentsB[1].index)
: -1; // \note -1 when can't reliably decide which ones are the additional segments, a or b.
return true;
}
}
}
namespace VerifyFractionalSpacingMultipleInternal
{
struct LineData
{
float tessLevel;
float additionalSegmentLength;
int additionalSegmentLocation;
LineData (float lev, float len, int loc) : tessLevel(lev), additionalSegmentLength(len), additionalSegmentLocation(loc) {}
};
}
/*--------------------------------------------------------------------*//*!
* \brief Verify fractional spacing conditions between multiple lines
*
* Verify the fractional spacing conditions that are not checked in
* verifyFractionalSpacingSingle(). Uses values given by said function
* as parameters, in addition to the spacing mode and tessellation level.
*//*--------------------------------------------------------------------*/
static bool verifyFractionalSpacingMultiple (TestLog& log, SpacingMode spacingMode, const vector<float>& tessLevels, const vector<float>& additionalSegmentLengths, const vector<int>& additionalSegmentLocations)
{
using namespace VerifyFractionalSpacingMultipleInternal;
DE_ASSERT(spacingMode == SPACINGMODE_FRACTIONAL_ODD || spacingMode == SPACINGMODE_FRACTIONAL_EVEN);
DE_ASSERT(tessLevels.size() == additionalSegmentLengths.size() &&
tessLevels.size() == additionalSegmentLocations.size());
vector<LineData> lineDatas;
for (int i = 0; i < (int)tessLevels.size(); i++)
lineDatas.push_back(LineData(tessLevels[i], additionalSegmentLengths[i], additionalSegmentLocations[i]));
{
const vector<LineData> lineDatasSortedByLevel = sorted(lineDatas, memberPred<std::less>(&LineData::tessLevel));
// Check that lines with identical clamped tessellation levels have identical additionalSegmentLocation.
for (int lineNdx = 1; lineNdx < (int)lineDatasSortedByLevel.size(); lineNdx++)
{
const LineData& curData = lineDatasSortedByLevel[lineNdx];
const LineData& prevData = lineDatasSortedByLevel[lineNdx-1];
if (curData.additionalSegmentLocation < 0 || prevData.additionalSegmentLocation < 0)
continue; // Unknown locations, skip.
if (getClampedTessLevel(spacingMode, curData.tessLevel) == getClampedTessLevel(spacingMode, prevData.tessLevel) &&
curData.additionalSegmentLocation != prevData.additionalSegmentLocation)
{
log << TestLog::Message << "Failure: additional segments not located identically for two edges with identical clamped tessellation levels" << TestLog::EndMessage
<< TestLog::Message << "Note: tessellation levels are " << curData.tessLevel << " and " << prevData.tessLevel
<< " (clamped level " << getClampedTessLevel(spacingMode, curData.tessLevel) << ")"
<< "; but first additional segments located at indices "
<< curData.additionalSegmentLocation << " and " << prevData.additionalSegmentLocation << ", respectively" << TestLog::EndMessage;
return false;
}
}
// Check that, among lines with same clamped rounded tessellation level, additionalSegmentLength is monotonically decreasing with "clampedRoundedTessLevel - clampedTessLevel" (the "fraction").
for (int lineNdx = 1; lineNdx < (int)lineDatasSortedByLevel.size(); lineNdx++)
{
const LineData& curData = lineDatasSortedByLevel[lineNdx];
const LineData& prevData = lineDatasSortedByLevel[lineNdx-1];
if (curData.additionalSegmentLength < 0.0f || prevData.additionalSegmentLength < 0.0f)
continue; // Unknown segment lengths, skip.
const float curClampedLevel = getClampedTessLevel(spacingMode, curData.tessLevel);
const float prevClampedLevel = getClampedTessLevel(spacingMode, prevData.tessLevel);
const int curFinalLevel = getRoundedTessLevel(spacingMode, curClampedLevel);
const int prevFinalLevel = getRoundedTessLevel(spacingMode, prevClampedLevel);
if (curFinalLevel != prevFinalLevel)
continue;
const float curFraction = (float)curFinalLevel - curClampedLevel;
const float prevFraction = (float)prevFinalLevel - prevClampedLevel;
if (curData.additionalSegmentLength < prevData.additionalSegmentLength ||
(curClampedLevel == prevClampedLevel && curData.additionalSegmentLength != prevData.additionalSegmentLength))
{
log << TestLog::Message << "Failure: additional segment length isn't monotonically decreasing with the fraction <n> - <f>, among edges with same final tessellation level" << TestLog::EndMessage
<< TestLog::Message << "Note: <f> stands for the clamped tessellation level and <n> for the final (rounded and clamped) tessellation level" << TestLog::EndMessage
<< TestLog::Message << "Note: two edges have tessellation levels " << prevData.tessLevel << " and " << curData.tessLevel << " respectively"
<< ", clamped " << prevClampedLevel << " and " << curClampedLevel << ", final " << prevFinalLevel << " and " << curFinalLevel
<< "; fractions are " << prevFraction << " and " << curFraction
<< ", but resulted in segment lengths " << prevData.additionalSegmentLength << " and " << curData.additionalSegmentLength << TestLog::EndMessage;
return false;
}
}
}
return true;
}
//! Compare triangle sets, ignoring triangle order and vertex order within triangle, and possibly exclude some triangles too.
template <typename IsTriangleRelevantT>
static bool compareTriangleSets (const vector<Vec3>& coordsA,
const vector<Vec3>& coordsB,
TestLog& log,
const IsTriangleRelevantT& isTriangleRelevant,
const char* ignoredTriangleDescription = DE_NULL)
{
typedef tcu::Vector<Vec3, 3> Triangle;
typedef LexCompare<Triangle, 3, VecLexLessThan<3> > TriangleLexLessThan;
typedef std::set<Triangle, TriangleLexLessThan> TriangleSet;
DE_ASSERT(coordsA.size() % 3 == 0 && coordsB.size() % 3 == 0);
const int numTrianglesA = (int)coordsA.size()/3;
const int numTrianglesB = (int)coordsB.size()/3;
TriangleSet trianglesA;
TriangleSet trianglesB;
for (int aOrB = 0; aOrB < 2; aOrB++)
{
const vector<Vec3>& coords = aOrB == 0 ? coordsA : coordsB;
const int numTriangles = aOrB == 0 ? numTrianglesA : numTrianglesB;
TriangleSet& triangles = aOrB == 0 ? trianglesA : trianglesB;
for (int triNdx = 0; triNdx < numTriangles; triNdx++)
{
Triangle triangle(coords[3*triNdx + 0],
coords[3*triNdx + 1],
coords[3*triNdx + 2]);
if (isTriangleRelevant(triangle.getPtr()))
{
std::sort(triangle.getPtr(), triangle.getPtr()+3, VecLexLessThan<3>());
triangles.insert(triangle);
}
}
}
{
TriangleSet::const_iterator aIt = trianglesA.begin();
TriangleSet::const_iterator bIt = trianglesB.begin();
while (aIt != trianglesA.end() || bIt != trianglesB.end())
{
const bool aEnd = aIt == trianglesA.end();
const bool bEnd = bIt == trianglesB.end();
if (aEnd || bEnd || *aIt != *bIt)
{
log << TestLog::Message << "Failure: triangle sets in two cases are not equal (when ignoring triangle and vertex order"
<< (ignoredTriangleDescription == DE_NULL ? "" : string() + ", and " + ignoredTriangleDescription) << ")" << TestLog::EndMessage;
if (!aEnd && (bEnd || TriangleLexLessThan()(*aIt, *bIt)))
log << TestLog::Message << "Note: e.g. triangle " << *aIt << " exists for first case but not for second" << TestLog::EndMessage;
else
log << TestLog::Message << "Note: e.g. triangle " << *bIt << " exists for second case but not for first" << TestLog::EndMessage;
return false;
}
++aIt;
++bIt;
}
return true;
}
}
static bool compareTriangleSets (const vector<Vec3>& coordsA, const vector<Vec3>& coordsB, TestLog& log)
{
return compareTriangleSets(coordsA, coordsB, log, ConstantUnaryPredicate<const Vec3*, true>());
}
static void checkGPUShader5Support (Context& context)
{
const bool supportsES32 = glu::contextSupports(context.getRenderContext().getType(), glu::ApiType::es(3, 2));
TCU_CHECK_AND_THROW(NotSupportedError, supportsES32 || context.getContextInfo().isExtensionSupported("GL_EXT_gpu_shader5"), "GL_EXT_gpu_shader5 is not supported");
}
static void checkTessellationSupport (Context& context)
{
const bool supportsES32 = glu::contextSupports(context.getRenderContext().getType(), glu::ApiType::es(3, 2));
TCU_CHECK_AND_THROW(NotSupportedError, supportsES32 || context.getContextInfo().isExtensionSupported("GL_EXT_tessellation_shader"), "GL_EXT_tessellation_shader is not supported");
}
static std::string specializeShader(Context& context, const char* code)
{
const glu::ContextType contextType = context.getRenderContext().getType();
const glu::GLSLVersion glslVersion = glu::getContextTypeGLSLVersion(contextType);
bool supportsES32 = glu::contextSupports(contextType, glu::ApiType::es(3, 2));
std::map<std::string, std::string> specializationMap;
specializationMap["GLSL_VERSION_DECL"] = glu::getGLSLVersionDeclaration(glslVersion);
specializationMap["GPU_SHADER5_REQUIRE"] = supportsES32 ? "" : "#extension GL_EXT_gpu_shader5 : require";
specializationMap["TESSELLATION_SHADER_REQUIRE"] = supportsES32 ? "" : "#extension GL_EXT_tessellation_shader : require";
return tcu::StringTemplate(code).specialize(specializationMap);
}
// Draw primitives with shared edges and check that no cracks are visible at the shared edges.
class CommonEdgeCase : public TestCase
{
public:
enum CaseType
{
CASETYPE_BASIC = 0, //!< Order patch vertices such that when two patches share a vertex, it's at the same index for both.
CASETYPE_PRECISE, //!< Vertex indices don't match like for CASETYPE_BASIC, but other measures are taken, using the 'precise' qualifier.
CASETYPE_LAST
};
CommonEdgeCase (Context& context, const char* name, const char* description, TessPrimitiveType primitiveType, SpacingMode spacing, CaseType caseType)
: TestCase (context, name, description)
, m_primitiveType (primitiveType)
, m_spacing (spacing)
, m_caseType (caseType)
{
DE_ASSERT(m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES || m_primitiveType == TESSPRIMITIVETYPE_QUADS);
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static const int RENDER_SIZE = 256;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
const CaseType m_caseType;
SharedPtr<const ShaderProgram> m_program;
};
void CommonEdgeCase::init (void)
{
checkTessellationSupport(m_context);
if (m_caseType == CASETYPE_PRECISE)
checkGPUShader5Support(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp vec2 in_v_position;\n"
"in highp float in_v_tessParam;\n"
"\n"
"out highp vec2 in_tc_position;\n"
"out highp float in_tc_tessParam;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_position = in_v_position;\n"
" in_tc_tessParam = in_v_tessParam;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
+ string(m_caseType == CASETYPE_PRECISE ? "${GPU_SHADER5_REQUIRE}\n" : "") +
"\n"
"layout (vertices = " + string(m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? "3" : m_primitiveType == TESSPRIMITIVETYPE_QUADS ? "4" : DE_NULL) + ") out;\n"
"\n"
"in highp vec2 in_tc_position[];\n"
"in highp float in_tc_tessParam[];\n"
"\n"
"out highp vec2 in_te_position[];\n"
"\n"
+ (m_caseType == CASETYPE_PRECISE ? "precise gl_TessLevelOuter;\n\n" : "") +
"void main (void)\n"
"{\n"
" in_te_position[gl_InvocationID] = in_tc_position[gl_InvocationID];\n"
"\n"
" gl_TessLevelInner[0] = 5.0;\n"
" gl_TessLevelInner[1] = 5.0;\n"
"\n"
+ (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ?
" gl_TessLevelOuter[0] = 1.0 + 59.0 * 0.5 * (in_tc_tessParam[1] + in_tc_tessParam[2]);\n"
" gl_TessLevelOuter[1] = 1.0 + 59.0 * 0.5 * (in_tc_tessParam[2] + in_tc_tessParam[0]);\n"
" gl_TessLevelOuter[2] = 1.0 + 59.0 * 0.5 * (in_tc_tessParam[0] + in_tc_tessParam[1]);\n"
: m_primitiveType == TESSPRIMITIVETYPE_QUADS ?
" gl_TessLevelOuter[0] = 1.0 + 59.0 * 0.5 * (in_tc_tessParam[0] + in_tc_tessParam[2]);\n"
" gl_TessLevelOuter[1] = 1.0 + 59.0 * 0.5 * (in_tc_tessParam[1] + in_tc_tessParam[0]);\n"
" gl_TessLevelOuter[2] = 1.0 + 59.0 * 0.5 * (in_tc_tessParam[3] + in_tc_tessParam[1]);\n"
" gl_TessLevelOuter[3] = 1.0 + 59.0 * 0.5 * (in_tc_tessParam[2] + in_tc_tessParam[3]);\n"
: DE_NULL) +
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
+ string(m_caseType == CASETYPE_PRECISE ? "${GPU_SHADER5_REQUIRE}\n" : "") +
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing) +
"\n"
"in highp vec2 in_te_position[];\n"
"\n"
"out mediump vec4 in_f_color;\n"
"\n"
+ (m_caseType == CASETYPE_PRECISE ? "precise gl_Position;\n\n" : "") +
"void main (void)\n"
"{\n"
+ (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ?
" highp vec2 pos = gl_TessCoord.x*in_te_position[0] + gl_TessCoord.y*in_te_position[1] + gl_TessCoord.z*in_te_position[2];\n"
"\n"
" highp float f = sqrt(3.0 * min(gl_TessCoord.x, min(gl_TessCoord.y, gl_TessCoord.z))) * 0.5 + 0.5;\n"
" in_f_color = vec4(gl_TessCoord*f, 1.0);\n"
: m_primitiveType == TESSPRIMITIVETYPE_QUADS ?
string()
+ (m_caseType == CASETYPE_BASIC ?
" highp vec2 pos = (1.0-gl_TessCoord.x)*(1.0-gl_TessCoord.y)*in_te_position[0]\n"
" + ( gl_TessCoord.x)*(1.0-gl_TessCoord.y)*in_te_position[1]\n"
" + (1.0-gl_TessCoord.x)*( gl_TessCoord.y)*in_te_position[2]\n"
" + ( gl_TessCoord.x)*( gl_TessCoord.y)*in_te_position[3];\n"
: m_caseType == CASETYPE_PRECISE ?
" highp vec2 a = (1.0-gl_TessCoord.x)*(1.0-gl_TessCoord.y)*in_te_position[0];\n"
" highp vec2 b = ( gl_TessCoord.x)*(1.0-gl_TessCoord.y)*in_te_position[1];\n"
" highp vec2 c = (1.0-gl_TessCoord.x)*( gl_TessCoord.y)*in_te_position[2];\n"
" highp vec2 d = ( gl_TessCoord.x)*( gl_TessCoord.y)*in_te_position[3];\n"
" highp vec2 pos = a+b+c+d;\n"
: DE_NULL) +
"\n"
" highp float f = sqrt(1.0 - 2.0 * max(abs(gl_TessCoord.x - 0.5), abs(gl_TessCoord.y - 0.5)))*0.5 + 0.5;\n"
" in_f_color = vec4(0.1, gl_TessCoord.xy*f, 1.0);\n"
: DE_NULL) +
"\n"
" // Offset the position slightly, based on the parity of the bits in the float representation.\n"
" // This is done to detect possible small differences in edge vertex positions between patches.\n"
" uvec2 bits = floatBitsToUint(pos);\n"
" uint numBits = 0u;\n"
" for (uint i = 0u; i < 32u; i++)\n"
" numBits += ((bits[0] >> i) & 1u) + ((bits[1] >> i) & 1u);\n"
" pos += float(numBits&1u)*0.04;\n"
"\n"
" gl_Position = vec4(pos, 0.0, 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in mediump vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void CommonEdgeCase::deinit (void)
{
m_program.clear();
}
CommonEdgeCase::IterateResult CommonEdgeCase::iterate (void)
{
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
const int gridWidth = 4;
const int gridHeight = 4;
const int numVertices = (gridWidth+1)*(gridHeight+1);
const int numIndices = gridWidth*gridHeight * (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? 3*2 : m_primitiveType == TESSPRIMITIVETYPE_QUADS ? 4 : -1);
const int numPosCompsPerVertex = 2;
const int totalNumPosComps = numPosCompsPerVertex*numVertices;
vector<float> gridPosComps;
vector<float> gridTessParams;
vector<deUint16> gridIndices;
gridPosComps.reserve(totalNumPosComps);
gridTessParams.reserve(numVertices);
gridIndices.reserve(numIndices);
{
for (int i = 0; i < gridHeight+1; i++)
for (int j = 0; j < gridWidth+1; j++)
{
gridPosComps.push_back(-1.0f + 2.0f * ((float)j + 0.5f) / (float)(gridWidth+1));
gridPosComps.push_back(-1.0f + 2.0f * ((float)i + 0.5f) / (float)(gridHeight+1));
gridTessParams.push_back((float)(i*(gridWidth+1) + j) / (float)(numVertices-1));
}
}
// Generate patch vertex indices.
// \note If CASETYPE_BASIC, the vertices are ordered such that when multiple
// triangles/quads share a vertex, it's at the same index for everyone.
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
{
for (int i = 0; i < gridHeight; i++)
for (int j = 0; j < gridWidth; j++)
{
const deUint16 corners[4] =
{
(deUint16)((i+0)*(gridWidth+1) + j+0),
(deUint16)((i+0)*(gridWidth+1) + j+1),
(deUint16)((i+1)*(gridWidth+1) + j+0),
(deUint16)((i+1)*(gridWidth+1) + j+1)
};
const int secondTriangleVertexIndexOffset = m_caseType == CASETYPE_BASIC ? 0
: m_caseType == CASETYPE_PRECISE ? 1
: -1;
DE_ASSERT(secondTriangleVertexIndexOffset != -1);
for (int k = 0; k < 3; k++)
gridIndices.push_back(corners[(k+0 + i + (2-j%3)) % 3]);
for (int k = 0; k < 3; k++)
gridIndices.push_back(corners[(k+2 + i + (2-j%3) + secondTriangleVertexIndexOffset) % 3 + 1]);
}
}
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS)
{
for (int i = 0; i < gridHeight; i++)
for (int j = 0; j < gridWidth; j++)
{
// \note The vertices are ordered such that when multiple quads
// share a vertices, it's at the same index for everyone.
for (int m = 0; m < 2; m++)
for (int n = 0; n < 2; n++)
gridIndices.push_back((deUint16)((i+(i+m)%2)*(gridWidth+1) + j+(j+n)%2));
if(m_caseType == CASETYPE_PRECISE && (i+j) % 2 == 0)
std::reverse(gridIndices.begin() + (gridIndices.size() - 4),
gridIndices.begin() + gridIndices.size());
}
}
else
DE_ASSERT(false);
DE_ASSERT((int)gridPosComps.size() == totalNumPosComps);
DE_ASSERT((int)gridTessParams.size() == numVertices);
DE_ASSERT((int)gridIndices.size() == numIndices);
setViewport(gl, viewport);
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.useProgram(programGL);
{
gl.patchParameteri(GL_PATCH_VERTICES, m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? 3 : m_primitiveType == TESSPRIMITIVETYPE_QUADS ? 4 : -1);
gl.clear(GL_COLOR_BUFFER_BIT);
const glu::VertexArrayBinding attrBindings[] =
{
glu::va::Float("in_v_position", numPosCompsPerVertex, numVertices, 0, &gridPosComps[0]),
glu::va::Float("in_v_tessParam", 1, numVertices, 0, &gridTessParams[0])
};
glu::draw(renderCtx, programGL, DE_LENGTH_OF_ARRAY(attrBindings), &attrBindings[0],
glu::pr::Patches((int)gridIndices.size(), &gridIndices[0]));
GLU_EXPECT_NO_ERROR(gl.getError(), "Draw failed");
}
{
const tcu::Surface rendered = getPixels(renderCtx, viewport);
log << TestLog::Image("RenderedImage", "Rendered Image", rendered)
<< TestLog::Message << "Note: coloring is done to clarify the positioning and orientation of the "
<< (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? "triangles" : m_primitiveType == TESSPRIMITIVETYPE_QUADS ? "quads" : DE_NULL)
<< "; the color of a vertex corresponds to the index of that vertex in the patch"
<< TestLog::EndMessage;
if (m_caseType == CASETYPE_BASIC)
log << TestLog::Message << "Note: each shared vertex has the same index among the primitives it belongs to" << TestLog::EndMessage;
else if (m_caseType == CASETYPE_PRECISE)
log << TestLog::Message << "Note: the 'precise' qualifier is used to avoid cracks between primitives" << TestLog::EndMessage;
else
DE_ASSERT(false);
// Ad-hoc result verification - check that a certain rectangle in the image contains no black pixels.
const int startX = (int)(0.15f * (float)rendered.getWidth());
const int endX = (int)(0.85f * (float)rendered.getWidth());
const int startY = (int)(0.15f * (float)rendered.getHeight());
const int endY = (int)(0.85f * (float)rendered.getHeight());
for (int y = startY; y < endY; y++)
for (int x = startX; x < endX; x++)
{
const tcu::RGBA pixel = rendered.getPixel(x, y);
if (pixel.getRed() == 0 && pixel.getGreen() == 0 && pixel.getBlue() == 0)
{
log << TestLog::Message << "Failure: there seem to be cracks in the rendered result" << TestLog::EndMessage
<< TestLog::Message << "Note: pixel with zero r, g and b channels found at " << tcu::IVec2(x, y) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image verification failed");
return STOP;
}
}
log << TestLog::Message << "Success: there seem to be no cracks in the rendered result" << TestLog::EndMessage;
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
// Check tessellation coordinates (read with transform feedback).
class TessCoordCase : public TestCase
{
public:
TessCoordCase (Context& context, const char* name, const char* description, TessPrimitiveType primitiveType, SpacingMode spacing)
: TestCase (context, name, description)
, m_primitiveType (primitiveType)
, m_spacing (spacing)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
struct TessLevels
{
float inner[2];
float outer[4];
};
static const int RENDER_SIZE = 16;
vector<TessLevels> genTessLevelCases (void) const;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
SharedPtr<const ShaderProgram> m_program;
};
void TessCoordCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"void main (void)\n"
"{\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 1) out;\n"
"\n"
"uniform mediump float u_tessLevelInner0;\n"
"uniform mediump float u_tessLevelInner1;\n"
"\n"
"uniform mediump float u_tessLevelOuter0;\n"
"uniform mediump float u_tessLevelOuter1;\n"
"uniform mediump float u_tessLevelOuter2;\n"
"uniform mediump float u_tessLevelOuter3;\n"
"\n"
"void main (void)\n"
"{\n"
" gl_TessLevelInner[0] = u_tessLevelInner0;\n"
" gl_TessLevelInner[1] = u_tessLevelInner1;\n"
"\n"
" gl_TessLevelOuter[0] = u_tessLevelOuter0;\n"
" gl_TessLevelOuter[1] = u_tessLevelOuter1;\n"
" gl_TessLevelOuter[2] = u_tessLevelOuter2;\n"
" gl_TessLevelOuter[3] = u_tessLevelOuter3;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing, true) +
"\n"
"out highp vec3 out_te_tessCoord;\n"
"\n"
"void main (void)\n"
"{\n"
" out_te_tessCoord = gl_TessCoord;\n"
" gl_Position = vec4(gl_TessCoord.xy*1.6 - 0.8, 0.0, 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = vec4(1.0);\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_tessCoord")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void TessCoordCase::deinit (void)
{
m_program.clear();
}
vector<TessCoordCase::TessLevels> TessCoordCase::genTessLevelCases (void) const
{
static const TessLevels rawTessLevelCases[] =
{
{ { 1.0f, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { 63.0f, 24.0f }, { 15.0f, 42.0f, 10.0f, 12.0f } },
{ { 3.0f, 2.0f }, { 6.0f, 8.0f, 7.0f, 9.0f } },
{ { 4.0f, 6.0f }, { 2.0f, 3.0f, 1.0f, 4.0f } },
{ { 2.0f, 2.0f }, { 6.0f, 8.0f, 7.0f, 9.0f } },
{ { 5.0f, 6.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { 1.0f, 6.0f }, { 2.0f, 3.0f, 1.0f, 4.0f } },
{ { 5.0f, 1.0f }, { 2.0f, 3.0f, 1.0f, 4.0f } },
{ { 5.2f, 1.6f }, { 2.9f, 3.4f, 1.5f, 4.1f } }
};
if (m_spacing == SPACINGMODE_EQUAL)
return vector<TessLevels>(DE_ARRAY_BEGIN(rawTessLevelCases), DE_ARRAY_END(rawTessLevelCases));
else
{
vector<TessLevels> result;
result.reserve(DE_LENGTH_OF_ARRAY(rawTessLevelCases));
for (int tessLevelCaseNdx = 0; tessLevelCaseNdx < DE_LENGTH_OF_ARRAY(rawTessLevelCases); tessLevelCaseNdx++)
{
TessLevels curTessLevelCase = rawTessLevelCases[tessLevelCaseNdx];
float* const inner = &curTessLevelCase.inner[0];
float* const outer = &curTessLevelCase.outer[0];
for (int j = 0; j < 2; j++) inner[j] = (float)getClampedRoundedTessLevel(m_spacing, inner[j]);
for (int j = 0; j < 4; j++) outer[j] = (float)getClampedRoundedTessLevel(m_spacing, outer[j]);
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
{
if (outer[0] > 1.0f || outer[1] > 1.0f || outer[2] > 1.0f)
{
if (inner[0] == 1.0f)
inner[0] = (float)getClampedRoundedTessLevel(m_spacing, inner[0] + 0.1f);
}
}
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS)
{
if (outer[0] > 1.0f || outer[1] > 1.0f || outer[2] > 1.0f || outer[3] > 1.0f)
{
if (inner[0] == 1.0f) inner[0] = (float)getClampedRoundedTessLevel(m_spacing, inner[0] + 0.1f);
if (inner[1] == 1.0f) inner[1] = (float)getClampedRoundedTessLevel(m_spacing, inner[1] + 0.1f);
}
}
result.push_back(curTessLevelCase);
}
DE_ASSERT((int)result.size() == DE_LENGTH_OF_ARRAY(rawTessLevelCases));
return result;
}
}
TessCoordCase::IterateResult TessCoordCase::iterate (void)
{
typedef TransformFeedbackHandler<Vec3> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
const int tessLevelInner0Loc = gl.getUniformLocation(programGL, "u_tessLevelInner0");
const int tessLevelInner1Loc = gl.getUniformLocation(programGL, "u_tessLevelInner1");
const int tessLevelOuter0Loc = gl.getUniformLocation(programGL, "u_tessLevelOuter0");
const int tessLevelOuter1Loc = gl.getUniformLocation(programGL, "u_tessLevelOuter1");
const int tessLevelOuter2Loc = gl.getUniformLocation(programGL, "u_tessLevelOuter2");
const int tessLevelOuter3Loc = gl.getUniformLocation(programGL, "u_tessLevelOuter3");
const vector<TessLevels> tessLevelCases = genTessLevelCases();
vector<vector<Vec3> > caseReferences (tessLevelCases.size());
for (int i = 0; i < (int)tessLevelCases.size(); i++)
caseReferences[i] = generateReferenceTessCoords(m_primitiveType, m_spacing, &tessLevelCases[i].inner[0], &tessLevelCases[i].outer[0]);
const int maxNumVertices = (int)std::max_element(caseReferences.begin(), caseReferences.end(), SizeLessThan<vector<Vec3> >())->size();
const TFHandler tfHandler (m_context.getRenderContext(), maxNumVertices);
bool success = true;
setViewport(gl, viewport);
gl.useProgram(programGL);
gl.patchParameteri(GL_PATCH_VERTICES, 1);
for (int tessLevelCaseNdx = 0; tessLevelCaseNdx < (int)tessLevelCases.size(); tessLevelCaseNdx++)
{
const float* const innerLevels = &tessLevelCases[tessLevelCaseNdx].inner[0];
const float* const outerLevels = &tessLevelCases[tessLevelCaseNdx].outer[0];
log << TestLog::Message << "Tessellation levels: " << tessellationLevelsString(innerLevels, outerLevels, m_primitiveType) << TestLog::EndMessage;
gl.uniform1f(tessLevelInner0Loc, innerLevels[0]);
gl.uniform1f(tessLevelInner1Loc, innerLevels[1]);
gl.uniform1f(tessLevelOuter0Loc, outerLevels[0]);
gl.uniform1f(tessLevelOuter1Loc, outerLevels[1]);
gl.uniform1f(tessLevelOuter2Loc, outerLevels[2]);
gl.uniform1f(tessLevelOuter3Loc, outerLevels[3]);
GLU_EXPECT_NO_ERROR(gl.getError(), "Setup failed");
{
const vector<Vec3>& tessCoordsRef = caseReferences[tessLevelCaseNdx];
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, GL_POINTS, 0, DE_NULL, 1);
if (tfResult.numPrimitives != (int)tessCoordsRef.size())
{
log << TestLog::Message << "Failure: GL reported GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN to be "
<< tfResult.numPrimitives << ", reference value is " << tessCoordsRef.size()
<< " (logging further info anyway)" << TestLog::EndMessage;
success = false;
}
else
log << TestLog::Message << "Note: GL reported GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN to be " << tfResult.numPrimitives << TestLog::EndMessage;
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
log << TestLog::Message << "Note: in the following visualization(s), the u=1, v=1, w=1 corners are at the right, top, and left corners, respectively" << TestLog::EndMessage;
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS || m_primitiveType == TESSPRIMITIVETYPE_ISOLINES)
log << TestLog::Message << "Note: in the following visualization(s), u and v coordinate go left-to-right and bottom-to-top, respectively" << TestLog::EndMessage;
else
DE_ASSERT(false);
success = compareTessCoords(log, m_primitiveType, tessCoordsRef, tfResult.varying) && success;
}
if (!success)
break;
else
log << TestLog::Message << "All OK" << TestLog::EndMessage;
}
m_testCtx.setTestResult(success ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL, success ? "Pass" : "Invalid tessellation coordinates");
return STOP;
}
// Check validity of fractional spacing modes. Draws a single isoline, reads tesscoords with transform feedback.
class FractionalSpacingModeCase : public TestCase
{
public:
FractionalSpacingModeCase (Context& context, const char* name, const char* description, SpacingMode spacing)
: TestCase (context, name, description)
, m_spacing (spacing)
{
DE_ASSERT(m_spacing == SPACINGMODE_FRACTIONAL_EVEN || m_spacing == SPACINGMODE_FRACTIONAL_ODD);
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static const int RENDER_SIZE = 16;
static vector<float> genTessLevelCases (void);
const SpacingMode m_spacing;
SharedPtr<const ShaderProgram> m_program;
};
void FractionalSpacingModeCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"void main (void)\n"
"{\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 1) out;\n"
"\n"
"uniform mediump float u_tessLevelOuter1;\n"
"\n"
"void main (void)\n"
"{\n"
" gl_TessLevelOuter[0] = 1.0;\n"
" gl_TessLevelOuter[1] = u_tessLevelOuter1;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(TESSPRIMITIVETYPE_ISOLINES, m_spacing, true) +
"\n"
"out highp float out_te_tessCoord;\n"
"\n"
"void main (void)\n"
"{\n"
" out_te_tessCoord = gl_TessCoord.x;\n"
" gl_Position = vec4(gl_TessCoord.xy*1.6 - 0.8, 0.0, 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = vec4(1.0);\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_tessCoord")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void FractionalSpacingModeCase::deinit (void)
{
m_program.clear();
}
vector<float> FractionalSpacingModeCase::genTessLevelCases (void)
{
vector<float> result;
// Ranges [7.0 .. 8.0), [8.0 .. 9.0) and [9.0 .. 10.0)
{
static const float rangeStarts[] = { 7.0f, 8.0f, 9.0f };
const int numSamplesPerRange = 10;
for (int rangeNdx = 0; rangeNdx < DE_LENGTH_OF_ARRAY(rangeStarts); rangeNdx++)
for (int i = 0; i < numSamplesPerRange; i++)
result.push_back(rangeStarts[rangeNdx] + (float)i/(float)numSamplesPerRange);
}
// 0.3, 1.3, 2.3, ... , 62.3
for (int i = 0; i <= 62; i++)
result.push_back((float)i + 0.3f);
return result;
}
FractionalSpacingModeCase::IterateResult FractionalSpacingModeCase::iterate (void)
{
typedef TransformFeedbackHandler<float> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
const int tessLevelOuter1Loc = gl.getUniformLocation(programGL, "u_tessLevelOuter1");
// Second outer tessellation levels.
const vector<float> tessLevelCases = genTessLevelCases();
const int maxNumVertices = 1 + getClampedRoundedTessLevel(m_spacing, *std::max_element(tessLevelCases.begin(), tessLevelCases.end()));
vector<float> additionalSegmentLengths;
vector<int> additionalSegmentLocations;
const TFHandler tfHandler (m_context.getRenderContext(), maxNumVertices);
bool success = true;
setViewport(gl, viewport);
gl.useProgram(programGL);
gl.patchParameteri(GL_PATCH_VERTICES, 1);
for (int tessLevelCaseNdx = 0; tessLevelCaseNdx < (int)tessLevelCases.size(); tessLevelCaseNdx++)
{
const float outerLevel1 = tessLevelCases[tessLevelCaseNdx];
gl.uniform1f(tessLevelOuter1Loc, outerLevel1);
GLU_EXPECT_NO_ERROR(gl.getError(), "Setup failed");
{
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, GL_POINTS, 0, DE_NULL, 1);
float additionalSegmentLength;
int additionalSegmentLocation;
success = verifyFractionalSpacingSingle(log, m_spacing, outerLevel1, tfResult.varying,
additionalSegmentLength, additionalSegmentLocation);
if (!success)
break;
additionalSegmentLengths.push_back(additionalSegmentLength);
additionalSegmentLocations.push_back(additionalSegmentLocation);
}
}
if (success)
success = verifyFractionalSpacingMultiple(log, m_spacing, tessLevelCases, additionalSegmentLengths, additionalSegmentLocations);
m_testCtx.setTestResult(success ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL, success ? "Pass" : "Invalid tessellation coordinates");
return STOP;
}
// Base class for a case with one input attribute (in_v_position) and optionally a TCS; tests with a couple of different sets of tessellation levels.
class BasicVariousTessLevelsPosAttrCase : public TestCase
{
public:
BasicVariousTessLevelsPosAttrCase (Context& context,
const char* name,
const char* description,
TessPrimitiveType primitiveType,
SpacingMode spacing,
const char* referenceImagePathPrefix)
: TestCase (context, name, description)
, m_primitiveType (primitiveType)
, m_spacing (spacing)
, m_referenceImagePathPrefix (referenceImagePathPrefix)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
protected:
virtual const glu::ProgramSources makeSources (TessPrimitiveType, SpacingMode, const char* vtxOutPosAttrName) const = DE_NULL;
private:
static const int RENDER_SIZE = 256;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
const string m_referenceImagePathPrefix;
SharedPtr<const ShaderProgram> m_program;
};
void BasicVariousTessLevelsPosAttrCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
{
glu::ProgramSources sources = makeSources(m_primitiveType, m_spacing, "in_tc_position");
DE_ASSERT(sources.sources[glu::SHADERTYPE_TESSELLATION_CONTROL].empty());
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = " + string(m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? "3" : "4") + ") out;\n"
"\n"
"in highp vec2 in_tc_position[];\n"
"\n"
"out highp vec2 in_te_position[];\n"
"\n"
"uniform mediump float u_tessLevelInner0;\n"
"uniform mediump float u_tessLevelInner1;\n"
"uniform mediump float u_tessLevelOuter0;\n"
"uniform mediump float u_tessLevelOuter1;\n"
"uniform mediump float u_tessLevelOuter2;\n"
"uniform mediump float u_tessLevelOuter3;\n"
"\n"
"void main (void)\n"
"{\n"
" in_te_position[gl_InvocationID] = in_tc_position[gl_InvocationID];\n"
"\n"
" gl_TessLevelInner[0] = u_tessLevelInner0;\n"
" gl_TessLevelInner[1] = u_tessLevelInner1;\n"
"\n"
" gl_TessLevelOuter[0] = u_tessLevelOuter0;\n"
" gl_TessLevelOuter[1] = u_tessLevelOuter1;\n"
" gl_TessLevelOuter[2] = u_tessLevelOuter2;\n"
" gl_TessLevelOuter[3] = u_tessLevelOuter3;\n"
"}\n");
sources << glu::TessellationControlSource(specializeShader(m_context, tessellationControlTemplate.c_str()));
m_program = SharedPtr<const ShaderProgram>(new glu::ShaderProgram(m_context.getRenderContext(), sources));
}
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void BasicVariousTessLevelsPosAttrCase::deinit (void)
{
m_program.clear();
}
BasicVariousTessLevelsPosAttrCase::IterateResult BasicVariousTessLevelsPosAttrCase::iterate (void)
{
static const struct
{
float inner[2];
float outer[4];
} tessLevelCases[] =
{
{ { 9.0f, 9.0f }, { 9.0f, 9.0f, 9.0f, 9.0f } },
{ { 8.0f, 11.0f }, { 13.0f, 15.0f, 18.0f, 21.0f } },
{ { 17.0f, 14.0f }, { 3.0f, 6.0f, 9.0f, 12.0f } }
};
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
const int patchSize = m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? 3
: m_primitiveType == TESSPRIMITIVETYPE_QUADS ? 4
: m_primitiveType == TESSPRIMITIVETYPE_ISOLINES ? 4
: -1;
setViewport(gl, viewport);
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.useProgram(programGL);
gl.patchParameteri(GL_PATCH_VERTICES, patchSize);
for (int tessLevelCaseNdx = 0; tessLevelCaseNdx < DE_LENGTH_OF_ARRAY(tessLevelCases); tessLevelCaseNdx++)
{
float innerLevels[2];
float outerLevels[4];
for (int i = 0; i < DE_LENGTH_OF_ARRAY(innerLevels); i++)
innerLevels[i] = (float)getClampedRoundedTessLevel(m_spacing, tessLevelCases[tessLevelCaseNdx].inner[i]);
for (int i = 0; i < DE_LENGTH_OF_ARRAY(outerLevels); i++)
outerLevels[i] = (float)getClampedRoundedTessLevel(m_spacing, tessLevelCases[tessLevelCaseNdx].outer[i]);
log << TestLog::Message << "Tessellation levels: " << tessellationLevelsString(&innerLevels[0], &outerLevels[0], m_primitiveType) << TestLog::EndMessage;
gl.uniform1f(gl.getUniformLocation(programGL, "u_tessLevelInner0"), innerLevels[0]);
gl.uniform1f(gl.getUniformLocation(programGL, "u_tessLevelInner1"), innerLevels[1]);
gl.uniform1f(gl.getUniformLocation(programGL, "u_tessLevelOuter0"), outerLevels[0]);
gl.uniform1f(gl.getUniformLocation(programGL, "u_tessLevelOuter1"), outerLevels[1]);
gl.uniform1f(gl.getUniformLocation(programGL, "u_tessLevelOuter2"), outerLevels[2]);
gl.uniform1f(gl.getUniformLocation(programGL, "u_tessLevelOuter3"), outerLevels[3]);
gl.clear(GL_COLOR_BUFFER_BIT);
{
vector<Vec2> positions;
positions.reserve(4);
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
{
positions.push_back(Vec2( 0.8f, 0.6f));
positions.push_back(Vec2( 0.0f, -0.786f));
positions.push_back(Vec2(-0.8f, 0.6f));
}
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS || m_primitiveType == TESSPRIMITIVETYPE_ISOLINES)
{
positions.push_back(Vec2(-0.8f, -0.8f));
positions.push_back(Vec2( 0.8f, -0.8f));
positions.push_back(Vec2(-0.8f, 0.8f));
positions.push_back(Vec2( 0.8f, 0.8f));
}
else
DE_ASSERT(false);
DE_ASSERT((int)positions.size() == patchSize);
const glu::VertexArrayBinding attrBindings[] =
{
glu::va::Float("in_v_position", 2, (int)positions.size(), 0, &positions[0].x())
};
glu::draw(m_context.getRenderContext(), programGL, DE_LENGTH_OF_ARRAY(attrBindings), &attrBindings[0],
glu::pr::Patches(patchSize));
GLU_EXPECT_NO_ERROR(gl.getError(), "Draw failed");
}
{
const tcu::Surface rendered = getPixels(renderCtx, viewport);
const tcu::TextureLevel reference = getPNG(m_testCtx.getArchive(), m_referenceImagePathPrefix + "_" + de::toString(tessLevelCaseNdx) + ".png");
const bool success = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", reference.getAccess(), rendered.getAccess(), 0.002f, tcu::COMPARE_LOG_RESULT);
if (!success)
{
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed");
return STOP;
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
// Test that there are no obvious gaps in the triangulation of a tessellated triangle or quad.
class BasicTriangleFillCoverCase : public BasicVariousTessLevelsPosAttrCase
{
public:
BasicTriangleFillCoverCase (Context& context, const char* name, const char* description, TessPrimitiveType primitiveType, SpacingMode spacing, const char* referenceImagePathPrefix)
: BasicVariousTessLevelsPosAttrCase (context, name, description, primitiveType, spacing, referenceImagePathPrefix)
{
DE_ASSERT(primitiveType == TESSPRIMITIVETYPE_TRIANGLES || primitiveType == TESSPRIMITIVETYPE_QUADS);
}
protected:
void init (void)
{
checkGPUShader5Support(m_context);
BasicVariousTessLevelsPosAttrCase::init();
}
const glu::ProgramSources makeSources (TessPrimitiveType primitiveType, SpacingMode spacing, const char* vtxOutPosAttrName) const
{
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp vec2 in_v_position;\n"
"\n"
"out highp vec2 " + string(vtxOutPosAttrName) + ";\n"
"\n"
"void main (void)\n"
"{\n"
" " + vtxOutPosAttrName + " = in_v_position;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"${GPU_SHADER5_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(primitiveType, spacing) +
"\n"
"in highp vec2 in_te_position[];\n"
"\n"
"precise gl_Position;\n"
"void main (void)\n"
"{\n"
+ (primitiveType == TESSPRIMITIVETYPE_TRIANGLES ?
"\n"
" highp float d = 3.0 * min(gl_TessCoord.x, min(gl_TessCoord.y, gl_TessCoord.z));\n"
" highp vec2 corner0 = in_te_position[0];\n"
" highp vec2 corner1 = in_te_position[1];\n"
" highp vec2 corner2 = in_te_position[2];\n"
" highp vec2 pos = corner0*gl_TessCoord.x + corner1*gl_TessCoord.y + corner2*gl_TessCoord.z;\n"
" highp vec2 fromCenter = pos - (corner0 + corner1 + corner2) / 3.0;\n"
" highp float f = (1.0 - length(fromCenter)) * (1.5 - d);\n"
" pos += 0.75 * f * fromCenter / (length(fromCenter) + 0.3);\n"
" gl_Position = vec4(pos, 0.0, 1.0);\n"
: primitiveType == TESSPRIMITIVETYPE_QUADS ?
" highp vec2 corner0 = in_te_position[0];\n"
" highp vec2 corner1 = in_te_position[1];\n"
" highp vec2 corner2 = in_te_position[2];\n"
" highp vec2 corner3 = in_te_position[3];\n"
" highp vec2 pos = (1.0-gl_TessCoord.x)*(1.0-gl_TessCoord.y)*corner0\n"
" + ( gl_TessCoord.x)*(1.0-gl_TessCoord.y)*corner1\n"
" + (1.0-gl_TessCoord.x)*( gl_TessCoord.y)*corner2\n"
" + ( gl_TessCoord.x)*( gl_TessCoord.y)*corner3;\n"
" highp float d = 2.0 * min(abs(gl_TessCoord.x-0.5), abs(gl_TessCoord.y-0.5));\n"
" highp vec2 fromCenter = pos - (corner0 + corner1 + corner2 + corner3) / 4.0;\n"
" highp float f = (1.0 - length(fromCenter)) * sqrt(1.7 - d);\n"
" pos += 0.75 * f * fromCenter / (length(fromCenter) + 0.3);\n"
" gl_Position = vec4(pos, 0.0, 1.0);\n"
: DE_NULL) +
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = vec4(1.0);\n"
"}\n");
return glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()));
}
};
// Check that there are no obvious overlaps in the triangulation of a tessellated triangle or quad.
class BasicTriangleFillNonOverlapCase : public BasicVariousTessLevelsPosAttrCase
{
public:
BasicTriangleFillNonOverlapCase (Context& context, const char* name, const char* description, TessPrimitiveType primitiveType, SpacingMode spacing, const char* referenceImagePathPrefix)
: BasicVariousTessLevelsPosAttrCase (context, name, description, primitiveType, spacing, referenceImagePathPrefix)
{
DE_ASSERT(primitiveType == TESSPRIMITIVETYPE_TRIANGLES || primitiveType == TESSPRIMITIVETYPE_QUADS);
}
protected:
const glu::ProgramSources makeSources (TessPrimitiveType primitiveType, SpacingMode spacing, const char* vtxOutPosAttrName) const
{
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp vec2 in_v_position;\n"
"\n"
"out highp vec2 " + string(vtxOutPosAttrName) + ";\n"
"\n"
"void main (void)\n"
"{\n"
" " + vtxOutPosAttrName + " = in_v_position;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(primitiveType, spacing) +
"\n"
"in highp vec2 in_te_position[];\n"
"\n"
"out mediump vec4 in_f_color;\n"
"\n"
"uniform mediump float u_tessLevelInner0;\n"
"uniform mediump float u_tessLevelInner1;\n"
"\n"
"void main (void)\n"
"{\n"
+ (primitiveType == TESSPRIMITIVETYPE_TRIANGLES ?
"\n"
" highp vec2 corner0 = in_te_position[0];\n"
" highp vec2 corner1 = in_te_position[1];\n"
" highp vec2 corner2 = in_te_position[2];\n"
" highp vec2 pos = corner0*gl_TessCoord.x + corner1*gl_TessCoord.y + corner2*gl_TessCoord.z;\n"
" gl_Position = vec4(pos, 0.0, 1.0);\n"
" highp int numConcentricTriangles = int(round(u_tessLevelInner0)) / 2 + 1;\n"
" highp float d = 3.0 * min(gl_TessCoord.x, min(gl_TessCoord.y, gl_TessCoord.z));\n"
" highp int phase = int(d*float(numConcentricTriangles)) % 3;\n"
" in_f_color = phase == 0 ? vec4(1.0, 0.0, 0.0, 1.0)\n"
" : phase == 1 ? vec4(0.0, 1.0, 0.0, 1.0)\n"
" : vec4(0.0, 0.0, 1.0, 1.0);\n"
: primitiveType == TESSPRIMITIVETYPE_QUADS ?
" highp vec2 corner0 = in_te_position[0];\n"
" highp vec2 corner1 = in_te_position[1];\n"
" highp vec2 corner2 = in_te_position[2];\n"
" highp vec2 corner3 = in_te_position[3];\n"
" highp vec2 pos = (1.0-gl_TessCoord.x)*(1.0-gl_TessCoord.y)*corner0\n"
" + ( gl_TessCoord.x)*(1.0-gl_TessCoord.y)*corner1\n"
" + (1.0-gl_TessCoord.x)*( gl_TessCoord.y)*corner2\n"
" + ( gl_TessCoord.x)*( gl_TessCoord.y)*corner3;\n"
" gl_Position = vec4(pos, 0.0, 1.0);\n"
" highp int phaseX = int(round((0.5 - abs(gl_TessCoord.x-0.5)) * u_tessLevelInner0));\n"
" highp int phaseY = int(round((0.5 - abs(gl_TessCoord.y-0.5)) * u_tessLevelInner1));\n"
" highp int phase = min(phaseX, phaseY) % 3;\n"
" in_f_color = phase == 0 ? vec4(1.0, 0.0, 0.0, 1.0)\n"
" : phase == 1 ? vec4(0.0, 1.0, 0.0, 1.0)\n"
" : vec4(0.0, 0.0, 1.0, 1.0);\n"
: DE_NULL) +
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in mediump vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
return glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()));
}
};
// Basic isolines rendering case.
class IsolinesRenderCase : public BasicVariousTessLevelsPosAttrCase
{
public:
IsolinesRenderCase (Context& context, const char* name, const char* description, SpacingMode spacing, const char* referenceImagePathPrefix)
: BasicVariousTessLevelsPosAttrCase (context, name, description, TESSPRIMITIVETYPE_ISOLINES, spacing, referenceImagePathPrefix)
{
}
protected:
const glu::ProgramSources makeSources (TessPrimitiveType primitiveType, SpacingMode spacing, const char* vtxOutPosAttrName) const
{
DE_ASSERT(primitiveType == TESSPRIMITIVETYPE_ISOLINES);
DE_UNREF(primitiveType);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp vec2 in_v_position;\n"
"\n"
"out highp vec2 " + string(vtxOutPosAttrName) + ";\n"
"\n"
"void main (void)\n"
"{\n"
" " + vtxOutPosAttrName + " = in_v_position;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(TESSPRIMITIVETYPE_ISOLINES, spacing) +
"\n"
"in highp vec2 in_te_position[];\n"
"\n"
"out mediump vec4 in_f_color;\n"
"\n"
"uniform mediump float u_tessLevelOuter0;\n"
"uniform mediump float u_tessLevelOuter1;\n"
"\n"
"void main (void)\n"
"{\n"
" highp vec2 corner0 = in_te_position[0];\n"
" highp vec2 corner1 = in_te_position[1];\n"
" highp vec2 corner2 = in_te_position[2];\n"
" highp vec2 corner3 = in_te_position[3];\n"
" highp vec2 pos = (1.0-gl_TessCoord.x)*(1.0-gl_TessCoord.y)*corner0\n"
" + ( gl_TessCoord.x)*(1.0-gl_TessCoord.y)*corner1\n"
" + (1.0-gl_TessCoord.x)*( gl_TessCoord.y)*corner2\n"
" + ( gl_TessCoord.x)*( gl_TessCoord.y)*corner3;\n"
" pos.y += 0.15*sin(gl_TessCoord.x*10.0);\n"
" gl_Position = vec4(pos, 0.0, 1.0);\n"
" highp int phaseX = int(round(gl_TessCoord.x*u_tessLevelOuter1));\n"
" highp int phaseY = int(round(gl_TessCoord.y*u_tessLevelOuter0));\n"
" highp int phase = (phaseX + phaseY) % 3;\n"
" in_f_color = phase == 0 ? vec4(1.0, 0.0, 0.0, 1.0)\n"
" : phase == 1 ? vec4(0.0, 1.0, 0.0, 1.0)\n"
" : vec4(0.0, 0.0, 1.0, 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in mediump vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
return glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()));
}
};
// Test the "cw" and "ccw" TES input layout qualifiers.
class WindingCase : public TestCase
{
public:
WindingCase (Context& context, const char* name, const char* description, TessPrimitiveType primitiveType, Winding winding)
: TestCase (context, name, description)
, m_primitiveType (primitiveType)
, m_winding (winding)
{
DE_ASSERT(primitiveType == TESSPRIMITIVETYPE_TRIANGLES || primitiveType == TESSPRIMITIVETYPE_QUADS);
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static const int RENDER_SIZE = 64;
const TessPrimitiveType m_primitiveType;
const Winding m_winding;
SharedPtr<const ShaderProgram> m_program;
};
void WindingCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"void main (void)\n"
"{\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 1) out;\n"
"\n"
"void main (void)\n"
"{\n"
" gl_TessLevelInner[0] = 5.0;\n"
" gl_TessLevelInner[1] = 5.0;\n"
"\n"
" gl_TessLevelOuter[0] = 5.0;\n"
" gl_TessLevelOuter[1] = 5.0;\n"
" gl_TessLevelOuter[2] = 5.0;\n"
" gl_TessLevelOuter[3] = 5.0;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_winding) +
"\n"
"void main (void)\n"
"{\n"
" gl_Position = vec4(gl_TessCoord.xy*2.0 - 1.0, 0.0, 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = vec4(1.0);\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void WindingCase::deinit (void)
{
m_program.clear();
}
WindingCase::IterateResult WindingCase::iterate (void)
{
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
const glu::VertexArray vao (renderCtx);
bool success = true;
setViewport(gl, viewport);
gl.clearColor(1.0f, 0.0f, 0.0f, 1.0f);
gl.useProgram(programGL);
gl.patchParameteri(GL_PATCH_VERTICES, 1);
gl.enable(GL_CULL_FACE);
gl.bindVertexArray(*vao);
log << TestLog::Message << "Face culling enabled" << TestLog::EndMessage;
for (int frontFaceWinding = 0; frontFaceWinding < WINDING_LAST; frontFaceWinding++)
{
log << TestLog::Message << "Setting glFrontFace(" << (frontFaceWinding == WINDING_CW ? "GL_CW" : "GL_CCW") << ")" << TestLog::EndMessage;
gl.frontFace(frontFaceWinding == WINDING_CW ? GL_CW : GL_CCW);
gl.clear(GL_COLOR_BUFFER_BIT);
gl.drawArrays(GL_PATCHES, 0, 1);
GLU_EXPECT_NO_ERROR(gl.getError(), "Draw failed");
{
const tcu::Surface rendered = getPixels(renderCtx, viewport);
log << TestLog::Image("RenderedImage", "Rendered Image", rendered);
{
const int totalNumPixels = rendered.getWidth()*rendered.getHeight();
const int badPixelTolerance = m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? 5*de::max(rendered.getWidth(), rendered.getHeight()) : 0;
int numWhitePixels = 0;
int numRedPixels = 0;
for (int y = 0; y < rendered.getHeight(); y++)
for (int x = 0; x < rendered.getWidth(); x++)
{
numWhitePixels += rendered.getPixel(x, y) == tcu::RGBA::white() ? 1 : 0;
numRedPixels += rendered.getPixel(x, y) == tcu::RGBA::red() ? 1 : 0;
}
DE_ASSERT(numWhitePixels + numRedPixels <= totalNumPixels);
log << TestLog::Message << "Note: got " << numWhitePixels << " white and " << numRedPixels << " red pixels" << TestLog::EndMessage;
if (totalNumPixels - numWhitePixels - numRedPixels > badPixelTolerance)
{
log << TestLog::Message << "Failure: Got " << totalNumPixels - numWhitePixels - numRedPixels << " other than white or red pixels (maximum tolerance " << badPixelTolerance << ")" << TestLog::EndMessage;
success = false;
break;
}
if ((Winding)frontFaceWinding == m_winding)
{
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
{
if (de::abs(numWhitePixels - totalNumPixels/2) > badPixelTolerance)
{
log << TestLog::Message << "Failure: wrong number of white pixels; expected approximately " << totalNumPixels/2 << TestLog::EndMessage;
success = false;
break;
}
}
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS)
{
if (numWhitePixels != totalNumPixels)
{
log << TestLog::Message << "Failure: expected only white pixels (full-viewport quad)" << TestLog::EndMessage;
success = false;
break;
}
}
else
DE_ASSERT(false);
}
else
{
if (numWhitePixels != 0)
{
log << TestLog::Message << "Failure: expected only red pixels (everything culled)" << TestLog::EndMessage;
success = false;
break;
}
}
}
}
}
m_testCtx.setTestResult(success ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL, success ? "Pass" : "Image verification failed");
return STOP;
}
// Test potentially differing input and output patch sizes.
class PatchVertexCountCase : public TestCase
{
public:
PatchVertexCountCase (Context& context, const char* name, const char* description, int inputPatchSize, int outputPatchSize, const char* referenceImagePath)
: TestCase (context, name, description)
, m_inputPatchSize (inputPatchSize)
, m_outputPatchSize (outputPatchSize)
, m_referenceImagePath (referenceImagePath)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static const int RENDER_SIZE = 256;
const int m_inputPatchSize;
const int m_outputPatchSize;
const string m_referenceImagePath;
SharedPtr<const ShaderProgram> m_program;
};
void PatchVertexCountCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
const string inSizeStr = de::toString(m_inputPatchSize);
const string outSizeStr = de::toString(m_outputPatchSize);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = " + outSizeStr + ") out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"out highp float in_te_attr[];\n"
"\n"
"void main (void)\n"
"{\n"
" in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID*" + inSizeStr + "/" + outSizeStr + "];\n"
"\n"
" gl_TessLevelInner[0] = 5.0;\n"
" gl_TessLevelInner[1] = 5.0;\n"
"\n"
" gl_TessLevelOuter[0] = 5.0;\n"
" gl_TessLevelOuter[1] = 5.0;\n"
" gl_TessLevelOuter[2] = 5.0;\n"
" gl_TessLevelOuter[3] = 5.0;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(TESSPRIMITIVETYPE_QUADS) +
"\n"
"in highp float in_te_attr[];\n"
"\n"
"out mediump vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" highp float x = gl_TessCoord.x*2.0 - 1.0;\n"
" highp float y = gl_TessCoord.y - in_te_attr[int(round(gl_TessCoord.x*float(" + outSizeStr + "-1)))];\n"
" gl_Position = vec4(x, y, 0.0, 1.0);\n"
" in_f_color = vec4(1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in mediump vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void PatchVertexCountCase::deinit (void)
{
m_program.clear();
}
PatchVertexCountCase::IterateResult PatchVertexCountCase::iterate (void)
{
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
setViewport(gl, viewport);
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.useProgram(programGL);
log << TestLog::Message << "Note: input patch size is " << m_inputPatchSize << ", output patch size is " << m_outputPatchSize << TestLog::EndMessage;
{
vector<float> attributeData;
attributeData.reserve(m_inputPatchSize);
for (int i = 0; i < m_inputPatchSize; i++)
{
const float f = (float)i / (float)(m_inputPatchSize-1);
attributeData.push_back(f*f);
}
gl.patchParameteri(GL_PATCH_VERTICES, m_inputPatchSize);
gl.clear(GL_COLOR_BUFFER_BIT);
const glu::VertexArrayBinding attrBindings[] =
{
glu::va::Float("in_v_attr", 1, (int)attributeData.size(), 0, &attributeData[0])
};
glu::draw(m_context.getRenderContext(), programGL, DE_LENGTH_OF_ARRAY(attrBindings), &attrBindings[0],
glu::pr::Patches(m_inputPatchSize));
GLU_EXPECT_NO_ERROR(gl.getError(), "Draw failed");
}
{
const tcu::Surface rendered = getPixels(renderCtx, viewport);
const tcu::TextureLevel reference = getPNG(m_testCtx.getArchive(), m_referenceImagePath);
const bool success = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", reference.getAccess(), rendered.getAccess(), 0.02f, tcu::COMPARE_LOG_RESULT);
m_testCtx.setTestResult(success ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL, success ? "Pass" : "Image comparison failed");
return STOP;
}
}
// Test per-patch inputs/outputs.
class PerPatchDataCase : public TestCase
{
public:
enum CaseType
{
CASETYPE_PRIMITIVE_ID_TCS = 0,
CASETYPE_PRIMITIVE_ID_TES,
CASETYPE_PATCH_VERTICES_IN_TCS,
CASETYPE_PATCH_VERTICES_IN_TES,
CASETYPE_TESS_LEVEL_INNER0_TES,
CASETYPE_TESS_LEVEL_INNER1_TES,
CASETYPE_TESS_LEVEL_OUTER0_TES,
CASETYPE_TESS_LEVEL_OUTER1_TES,
CASETYPE_TESS_LEVEL_OUTER2_TES,
CASETYPE_TESS_LEVEL_OUTER3_TES,
CASETYPE_LAST
};
PerPatchDataCase (Context& context, const char* name, const char* description, CaseType caseType, const char* referenceImagePath)
: TestCase (context, name, description)
, m_caseType (caseType)
, m_referenceImagePath (caseTypeUsesRefImageFromFile(caseType) ? referenceImagePath : "")
{
DE_ASSERT(caseTypeUsesRefImageFromFile(caseType) == (referenceImagePath != DE_NULL));
}
void init (void);
void deinit (void);
IterateResult iterate (void);
static const char* getCaseTypeName (CaseType);
static const char* getCaseTypeDescription (CaseType);
static bool caseTypeUsesRefImageFromFile (CaseType);
private:
static const int RENDER_SIZE = 256;
static const int INPUT_PATCH_SIZE;
static const int OUTPUT_PATCH_SIZE;
const CaseType m_caseType;
const string m_referenceImagePath;
SharedPtr<const ShaderProgram> m_program;
};
const int PerPatchDataCase::INPUT_PATCH_SIZE = 10;
const int PerPatchDataCase::OUTPUT_PATCH_SIZE = 5;
const char* PerPatchDataCase::getCaseTypeName (CaseType type)
{
switch (type)
{
case CASETYPE_PRIMITIVE_ID_TCS: return "primitive_id_tcs";
case CASETYPE_PRIMITIVE_ID_TES: return "primitive_id_tes";
case CASETYPE_PATCH_VERTICES_IN_TCS: return "patch_vertices_in_tcs";
case CASETYPE_PATCH_VERTICES_IN_TES: return "patch_vertices_in_tes";
case CASETYPE_TESS_LEVEL_INNER0_TES: return "tess_level_inner_0_tes";
case CASETYPE_TESS_LEVEL_INNER1_TES: return "tess_level_inner_1_tes";
case CASETYPE_TESS_LEVEL_OUTER0_TES: return "tess_level_outer_0_tes";
case CASETYPE_TESS_LEVEL_OUTER1_TES: return "tess_level_outer_1_tes";
case CASETYPE_TESS_LEVEL_OUTER2_TES: return "tess_level_outer_2_tes";
case CASETYPE_TESS_LEVEL_OUTER3_TES: return "tess_level_outer_3_tes";
default:
DE_ASSERT(false);
return DE_NULL;
}
}
const char* PerPatchDataCase::getCaseTypeDescription (CaseType type)
{
switch (type)
{
case CASETYPE_PRIMITIVE_ID_TCS: return "Read gl_PrimitiveID in TCS and pass it as patch output to TES";
case CASETYPE_PRIMITIVE_ID_TES: return "Read gl_PrimitiveID in TES";
case CASETYPE_PATCH_VERTICES_IN_TCS: return "Read gl_PatchVerticesIn in TCS and pass it as patch output to TES";
case CASETYPE_PATCH_VERTICES_IN_TES: return "Read gl_PatchVerticesIn in TES";
case CASETYPE_TESS_LEVEL_INNER0_TES: return "Read gl_TessLevelInner[0] in TES";
case CASETYPE_TESS_LEVEL_INNER1_TES: return "Read gl_TessLevelInner[1] in TES";
case CASETYPE_TESS_LEVEL_OUTER0_TES: return "Read gl_TessLevelOuter[0] in TES";
case CASETYPE_TESS_LEVEL_OUTER1_TES: return "Read gl_TessLevelOuter[1] in TES";
case CASETYPE_TESS_LEVEL_OUTER2_TES: return "Read gl_TessLevelOuter[2] in TES";
case CASETYPE_TESS_LEVEL_OUTER3_TES: return "Read gl_TessLevelOuter[3] in TES";
default:
DE_ASSERT(false);
return DE_NULL;
}
}
bool PerPatchDataCase::caseTypeUsesRefImageFromFile (CaseType type)
{
switch (type)
{
case CASETYPE_PRIMITIVE_ID_TCS:
case CASETYPE_PRIMITIVE_ID_TES:
return true;
default:
return false;
}
}
void PerPatchDataCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
DE_ASSERT(OUTPUT_PATCH_SIZE < INPUT_PATCH_SIZE);
const string inSizeStr = de::toString(INPUT_PATCH_SIZE);
const string outSizeStr = de::toString(OUTPUT_PATCH_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = " + outSizeStr + ") out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"out highp float in_te_attr[];\n"
+ (m_caseType == CASETYPE_PRIMITIVE_ID_TCS ? "patch out mediump int in_te_primitiveIDFromTCS;\n"
: m_caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "patch out mediump int in_te_patchVerticesInFromTCS;\n"
: "") +
"\n"
"void main (void)\n"
"{\n"
" in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
+ (m_caseType == CASETYPE_PRIMITIVE_ID_TCS ? "\tin_te_primitiveIDFromTCS = gl_PrimitiveID;\n"
: m_caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "\tin_te_patchVerticesInFromTCS = gl_PatchVerticesIn;\n"
: "") +
"\n"
" gl_TessLevelInner[0] = 9.0;\n"
" gl_TessLevelInner[1] = 8.0;\n"
"\n"
" gl_TessLevelOuter[0] = 7.0;\n"
" gl_TessLevelOuter[1] = 6.0;\n"
" gl_TessLevelOuter[2] = 5.0;\n"
" gl_TessLevelOuter[3] = 4.0;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(TESSPRIMITIVETYPE_QUADS) +
"\n"
"in highp float in_te_attr[];\n"
+ (m_caseType == CASETYPE_PRIMITIVE_ID_TCS ? "patch in mediump int in_te_primitiveIDFromTCS;\n"
: m_caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "patch in mediump int in_te_patchVerticesInFromTCS;\n"
: string()) +
"\n"
"out mediump vec4 in_f_color;\n"
"\n"
"uniform highp float u_xScale;\n"
"\n"
"void main (void)\n"
"{\n"
" highp float x = (gl_TessCoord.x*u_xScale + in_te_attr[0]) * 2.0 - 1.0;\n"
" highp float y = gl_TessCoord.y*2.0 - 1.0;\n"
" gl_Position = vec4(x, y, 0.0, 1.0);\n"
+ (m_caseType == CASETYPE_PRIMITIVE_ID_TCS ? "\tbool ok = in_te_primitiveIDFromTCS == 3;\n"
: m_caseType == CASETYPE_PRIMITIVE_ID_TES ? "\tbool ok = gl_PrimitiveID == 3;\n"
: m_caseType == CASETYPE_PATCH_VERTICES_IN_TCS ? "\tbool ok = in_te_patchVerticesInFromTCS == " + inSizeStr + ";\n"
: m_caseType == CASETYPE_PATCH_VERTICES_IN_TES ? "\tbool ok = gl_PatchVerticesIn == " + outSizeStr + ";\n"
: m_caseType == CASETYPE_TESS_LEVEL_INNER0_TES ? "\tbool ok = abs(gl_TessLevelInner[0] - 9.0) < 0.1f;\n"
: m_caseType == CASETYPE_TESS_LEVEL_INNER1_TES ? "\tbool ok = abs(gl_TessLevelInner[1] - 8.0) < 0.1f;\n"
: m_caseType == CASETYPE_TESS_LEVEL_OUTER0_TES ? "\tbool ok = abs(gl_TessLevelOuter[0] - 7.0) < 0.1f;\n"
: m_caseType == CASETYPE_TESS_LEVEL_OUTER1_TES ? "\tbool ok = abs(gl_TessLevelOuter[1] - 6.0) < 0.1f;\n"
: m_caseType == CASETYPE_TESS_LEVEL_OUTER2_TES ? "\tbool ok = abs(gl_TessLevelOuter[2] - 5.0) < 0.1f;\n"
: m_caseType == CASETYPE_TESS_LEVEL_OUTER3_TES ? "\tbool ok = abs(gl_TessLevelOuter[3] - 4.0) < 0.1f;\n"
: DE_NULL) +
" in_f_color = ok ? vec4(1.0) : vec4(vec3(0.0), 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in mediump vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void PerPatchDataCase::deinit (void)
{
m_program.clear();
}
PerPatchDataCase::IterateResult PerPatchDataCase::iterate (void)
{
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
setViewport(gl, viewport);
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.useProgram(programGL);
log << TestLog::Message << "Note: input patch size is " << INPUT_PATCH_SIZE << ", output patch size is " << OUTPUT_PATCH_SIZE << TestLog::EndMessage;
{
const int numPrimitives = m_caseType == CASETYPE_PRIMITIVE_ID_TCS || m_caseType == CASETYPE_PRIMITIVE_ID_TES ? 8 : 1;
vector<float> attributeData;
attributeData.reserve(numPrimitives*INPUT_PATCH_SIZE);
for (int i = 0; i < numPrimitives; i++)
{
attributeData.push_back((float)i / (float)numPrimitives);
for (int j = 0; j < INPUT_PATCH_SIZE-1; j++)
attributeData.push_back(0.0f);
}
gl.patchParameteri(GL_PATCH_VERTICES, INPUT_PATCH_SIZE);
gl.clear(GL_COLOR_BUFFER_BIT);
gl.uniform1f(gl.getUniformLocation(programGL, "u_xScale"), 1.0f / (float)numPrimitives);
const glu::VertexArrayBinding attrBindings[] =
{
glu::va::Float("in_v_attr", 1, (int)attributeData.size(), 0, &attributeData[0])
};
glu::draw(m_context.getRenderContext(), programGL, DE_LENGTH_OF_ARRAY(attrBindings), &attrBindings[0],
glu::pr::Patches(numPrimitives*INPUT_PATCH_SIZE));
GLU_EXPECT_NO_ERROR(gl.getError(), "Draw failed");
}
{
const tcu::Surface rendered = getPixels(renderCtx, viewport);
if (m_caseType == CASETYPE_PRIMITIVE_ID_TCS || m_caseType == CASETYPE_PRIMITIVE_ID_TES)
{
DE_ASSERT(caseTypeUsesRefImageFromFile(m_caseType));
const tcu::TextureLevel reference = getPNG(m_testCtx.getArchive(), m_referenceImagePath);
const bool success = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", reference.getAccess(), rendered.getAccess(), 0.02f, tcu::COMPARE_LOG_RESULT);
m_testCtx.setTestResult(success ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL, success ? "Pass" : "Image comparison failed");
return STOP;
}
else
{
DE_ASSERT(!caseTypeUsesRefImageFromFile(m_caseType));
log << TestLog::Image("RenderedImage", "Rendered Image", rendered);
for (int y = 0; y < rendered.getHeight(); y++)
for (int x = 0; x < rendered.getWidth(); x++)
{
if (rendered.getPixel(x, y) != tcu::RGBA::white())
{
log << TestLog::Message << "Failure: expected all white pixels" << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image verification failed");
return STOP;
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
}
}
// Basic barrier() usage in TCS.
class BarrierCase : public TestCase
{
public:
BarrierCase (Context& context, const char* name, const char* description, const char* referenceImagePath)
: TestCase (context, name, description)
, m_referenceImagePath (referenceImagePath)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static const int RENDER_SIZE = 256;
static const int NUM_VERTICES;
const string m_referenceImagePath;
SharedPtr<const ShaderProgram> m_program;
};
const int BarrierCase::NUM_VERTICES = 32;
void BarrierCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
const string numVertsStr = de::toString(NUM_VERTICES);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = " + numVertsStr + ") out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"out highp float in_te_attr[];\n"
"patch out highp float in_te_patchAttr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_te_attr[gl_InvocationID] = in_tc_attr[gl_InvocationID];\n"
" in_te_patchAttr = 0.0f;\n"
" barrier();\n"
" if (gl_InvocationID == 5)\n"
" in_te_patchAttr = float(gl_InvocationID)*0.1;\n"
" barrier();\n"
" highp float temp = in_te_patchAttr + in_te_attr[gl_InvocationID];\n"
" barrier();\n"
" if (gl_InvocationID == " + numVertsStr + "-1)\n"
" in_te_patchAttr = float(gl_InvocationID);\n"
" barrier();\n"
" in_te_attr[gl_InvocationID] = temp;\n"
" barrier();\n"
" temp = temp + in_te_attr[(gl_InvocationID+1) % " + numVertsStr + "];\n"
" barrier();\n"
" in_te_attr[gl_InvocationID] = 0.25*temp;\n"
"\n"
" gl_TessLevelInner[0] = 32.0;\n"
" gl_TessLevelInner[1] = 32.0;\n"
"\n"
" gl_TessLevelOuter[0] = 32.0;\n"
" gl_TessLevelOuter[1] = 32.0;\n"
" gl_TessLevelOuter[2] = 32.0;\n"
" gl_TessLevelOuter[3] = 32.0;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(TESSPRIMITIVETYPE_QUADS) +
"\n"
"in highp float in_te_attr[];\n"
"patch in highp float in_te_patchAttr;\n"
"\n"
"out highp float in_f_blue;\n"
"\n"
"void main (void)\n"
"{\n"
" highp float x = gl_TessCoord.x*2.0 - 1.0;\n"
" highp float y = gl_TessCoord.y - in_te_attr[int(round(gl_TessCoord.x*float(" + numVertsStr + "-1)))];\n"
" gl_Position = vec4(x, y, 0.0, 1.0);\n"
" in_f_blue = abs(in_te_patchAttr - float(" + numVertsStr + "-1));\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp float in_f_blue;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = vec4(1.0, 0.0, in_f_blue, 1.0);\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void BarrierCase::deinit (void)
{
m_program.clear();
}
BarrierCase::IterateResult BarrierCase::iterate (void)
{
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const deUint32 programGL = m_program->getProgram();
const glw::Functions& gl = renderCtx.getFunctions();
setViewport(gl, viewport);
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.useProgram(programGL);
{
vector<float> attributeData(NUM_VERTICES);
for (int i = 0; i < NUM_VERTICES; i++)
attributeData[i] = (float)i / (float)(NUM_VERTICES-1);
gl.patchParameteri(GL_PATCH_VERTICES, NUM_VERTICES);
gl.clear(GL_COLOR_BUFFER_BIT);
const glu::VertexArrayBinding attrBindings[] =
{
glu::va::Float("in_v_attr", 1, (int)attributeData.size(), 0, &attributeData[0])
};
glu::draw(m_context.getRenderContext(), programGL, DE_LENGTH_OF_ARRAY(attrBindings), &attrBindings[0],
glu::pr::Patches(NUM_VERTICES));
GLU_EXPECT_NO_ERROR(gl.getError(), "Draw failed");
}
{
const tcu::Surface rendered = getPixels(renderCtx, viewport);
const tcu::TextureLevel reference = getPNG(m_testCtx.getArchive(), m_referenceImagePath);
const bool success = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", reference.getAccess(), rendered.getAccess(), 0.02f, tcu::COMPARE_LOG_RESULT);
m_testCtx.setTestResult(success ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL, success ? "Pass" : "Image comparison failed");
return STOP;
}
}
/*--------------------------------------------------------------------*//*!
* \brief Base class for testing invariance of entire primitive set
*
* Draws two patches with identical tessellation levels and compares the
* results. Repeats the same with other programs that are only different
* in irrelevant ways; compares the results between these two programs.
* Also potentially compares to results produced by different tessellation
* levels (see e.g. invariance rule #6).
* Furthermore, repeats the above with multiple different tessellation
* value sets.
*
* The manner of primitive set comparison is defined by subclass. E.g.
* case for invariance rule #1 tests that same vertices come out, in same
* order; rule #5 only requires that the same triangles are output, but
* not necessarily in the same order.
*//*--------------------------------------------------------------------*/
class PrimitiveSetInvarianceCase : public TestCase
{
public:
enum WindingUsage
{
WINDINGUSAGE_CCW = 0,
WINDINGUSAGE_CW,
WINDINGUSAGE_VARY,
WINDINGUSAGE_LAST
};
PrimitiveSetInvarianceCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, bool usePointMode, WindingUsage windingUsage)
: TestCase (context, name, description)
, m_primitiveType (primType)
, m_spacing (spacing)
, m_usePointMode (usePointMode)
, m_windingUsage (windingUsage)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
protected:
struct TessLevels
{
float inner[2];
float outer[4];
string description (void) const { return tessellationLevelsString(&inner[0], &outer[0]); }
};
struct LevelCase
{
vector<TessLevels> levels;
int mem; //!< Subclass-defined arbitrary piece of data, for type of the levelcase, if needed. Passed to compare().
LevelCase (const TessLevels& lev) : levels(vector<TessLevels>(1, lev)), mem(0) {}
LevelCase (void) : mem(0) {}
};
virtual vector<LevelCase> genTessLevelCases (void) const;
virtual bool compare (const vector<Vec3>& coordsA, const vector<Vec3>& coordsB, int levelCaseMem) const = 0;
const TessPrimitiveType m_primitiveType;
private:
struct Program
{
Winding winding;
SharedPtr<const ShaderProgram> program;
Program (Winding w, const SharedPtr<const ShaderProgram>& prog) : winding(w), program(prog) {}
string description (void) const { return string() + "winding mode " + getWindingShaderName(winding); };
};
static const int RENDER_SIZE = 16;
const SpacingMode m_spacing;
const bool m_usePointMode;
const WindingUsage m_windingUsage;
vector<Program> m_programs;
};
vector<PrimitiveSetInvarianceCase::LevelCase> PrimitiveSetInvarianceCase::genTessLevelCases (void) const
{
static const TessLevels basicTessLevelCases[] =
{
{ { 1.0f, 1.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { 63.0f, 24.0f }, { 15.0f, 42.0f, 10.0f, 12.0f } },
{ { 3.0f, 2.0f }, { 6.0f, 8.0f, 7.0f, 9.0f } },
{ { 4.0f, 6.0f }, { 2.0f, 3.0f, 1.0f, 4.0f } },
{ { 2.0f, 2.0f }, { 6.0f, 8.0f, 7.0f, 9.0f } },
{ { 5.0f, 6.0f }, { 1.0f, 1.0f, 1.0f, 1.0f } },
{ { 1.0f, 6.0f }, { 2.0f, 3.0f, 1.0f, 4.0f } },
{ { 5.0f, 1.0f }, { 2.0f, 3.0f, 1.0f, 4.0f } },
{ { 5.2f, 1.6f }, { 2.9f, 3.4f, 1.5f, 4.1f } }
};
vector<LevelCase> result;
for (int i = 0; i < DE_LENGTH_OF_ARRAY(basicTessLevelCases); i++)
result.push_back(LevelCase(basicTessLevelCases[i]));
{
de::Random rnd(123);
for (int i = 0; i < 10; i++)
{
TessLevels levels;
for (int j = 0; j < DE_LENGTH_OF_ARRAY(levels.inner); j++)
levels.inner[j] = rnd.getFloat(1.0f, 16.0f);
for (int j = 0; j < DE_LENGTH_OF_ARRAY(levels.outer); j++)
levels.outer[j] = rnd.getFloat(1.0f, 16.0f);
result.push_back(LevelCase(levels));
}
}
return result;
}
void PrimitiveSetInvarianceCase::init (void)
{
const int numDifferentConstantExprCases = 2;
vector<Winding> windings;
switch (m_windingUsage)
{
case WINDINGUSAGE_CCW: windings.push_back(WINDING_CCW); break;
case WINDINGUSAGE_CW: windings.push_back(WINDING_CW); break;
case WINDINGUSAGE_VARY: windings.push_back(WINDING_CCW);
windings.push_back(WINDING_CW); break;
default: DE_ASSERT(false);
}
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
for (int constantExprCaseNdx = 0; constantExprCaseNdx < numDifferentConstantExprCases; constantExprCaseNdx++)
{
for (int windingCaseNdx = 0; windingCaseNdx < (int)windings.size(); windingCaseNdx++)
{
const string floatLit01 = de::floatToString(10.0f / (float)(constantExprCaseNdx + 10), 2);
const int programNdx = (int)m_programs.size();
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = " + de::toString(constantExprCaseNdx+1) + ") out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"patch out highp float in_te_positionOffset;\n"
"\n"
"void main (void)\n"
"{\n"
" in_te_positionOffset = in_tc_attr[6];\n"
"\n"
" gl_TessLevelInner[0] = in_tc_attr[0];\n"
" gl_TessLevelInner[1] = in_tc_attr[1];\n"
"\n"
" gl_TessLevelOuter[0] = in_tc_attr[2];\n"
" gl_TessLevelOuter[1] = in_tc_attr[3];\n"
" gl_TessLevelOuter[2] = in_tc_attr[4];\n"
" gl_TessLevelOuter[3] = in_tc_attr[5];\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing, windings[windingCaseNdx], m_usePointMode) +
"\n"
"patch in highp float in_te_positionOffset;\n"
"\n"
"out highp vec4 in_f_color;\n"
"invariant out highp vec3 out_te_tessCoord;\n"
"\n"
"void main (void)\n"
"{\n"
" gl_Position = vec4(gl_TessCoord.xy*" + floatLit01 + " - in_te_positionOffset + float(gl_PrimitiveID)*0.1, 0.0, 1.0);\n"
" in_f_color = vec4(" + floatLit01 + ");\n"
" out_te_tessCoord = gl_TessCoord;\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_programs.push_back(Program(windings[windingCaseNdx],
SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_tessCoord")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)))));
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Program" + de::toString(programNdx), "Program " + de::toString(programNdx));
if (programNdx == 0 || !m_programs.back().program->isOk())
m_testCtx.getLog() << *m_programs.back().program;
if (!m_programs.back().program->isOk())
TCU_FAIL("Program compilation failed");
if (programNdx > 0)
m_testCtx.getLog() << TestLog::Message << "Note: program " << programNdx << " is similar to above, except some constants are different, and: " << m_programs.back().description() << TestLog::EndMessage;
}
}
}
}
void PrimitiveSetInvarianceCase::deinit (void)
{
m_programs.clear();
}
PrimitiveSetInvarianceCase::IterateResult PrimitiveSetInvarianceCase::iterate (void)
{
typedef TransformFeedbackHandler<Vec3> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
const vector<LevelCase> tessLevelCases = genTessLevelCases();
vector<vector<int> > primitiveCounts;
int maxNumPrimitives = -1;
for (int caseNdx = 0; caseNdx < (int)tessLevelCases.size(); caseNdx++)
{
primitiveCounts.push_back(vector<int>());
for (int i = 0; i < (int)tessLevelCases[caseNdx].levels.size(); i++)
{
const int primCount = referencePrimitiveCount(m_primitiveType, m_spacing, m_usePointMode,
&tessLevelCases[caseNdx].levels[i].inner[0], &tessLevelCases[caseNdx].levels[i].outer[0]);
primitiveCounts.back().push_back(primCount);
maxNumPrimitives = de::max(maxNumPrimitives, primCount);
}
}
const deUint32 primitiveTypeGL = outputPrimitiveTypeGL(m_primitiveType, m_usePointMode);
const TFHandler transformFeedback (m_context.getRenderContext(), 2*maxNumPrimitives*numVerticesPerPrimitive(primitiveTypeGL));
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, 7);
for (int tessLevelCaseNdx = 0; tessLevelCaseNdx < (int)tessLevelCases.size(); tessLevelCaseNdx++)
{
const LevelCase& levelCase = tessLevelCases[tessLevelCaseNdx];
vector<Vec3> firstPrimVertices;
{
string tessLevelsStr;
for (int i = 0; i < (int)levelCase.levels.size(); i++)
tessLevelsStr += (levelCase.levels.size() > 1 ? "\n" : "") + levelCase.levels[i].description();
log << TestLog::Message << "Tessellation level sets: " << tessLevelsStr << TestLog::EndMessage;
}
for (int subTessLevelCaseNdx = 0; subTessLevelCaseNdx < (int)levelCase.levels.size(); subTessLevelCaseNdx++)
{
const TessLevels& tessLevels = levelCase.levels[subTessLevelCaseNdx];
const float (&inner)[2] = tessLevels.inner;
const float (&outer)[4] = tessLevels.outer;
const float attribute[2*7] = { inner[0], inner[1], outer[0], outer[1], outer[2], outer[3], 0.0f,
inner[0], inner[1], outer[0], outer[1], outer[2], outer[3], 0.5f };
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 1, DE_LENGTH_OF_ARRAY(attribute), 0, &attribute[0]) };
for (int programNdx = 0; programNdx < (int)m_programs.size(); programNdx++)
{
const deUint32 programGL = m_programs[programNdx].program->getProgram();
gl.useProgram(programGL);
const TFHandler::Result tfResult = transformFeedback.renderAndGetPrimitives(programGL, primitiveTypeGL, DE_LENGTH_OF_ARRAY(bindings), &bindings[0], DE_LENGTH_OF_ARRAY(attribute));
if (tfResult.numPrimitives != 2*primitiveCounts[tessLevelCaseNdx][subTessLevelCaseNdx])
{
log << TestLog::Message << "Failure: GL reported GL_TRANSFORM_FEEDBACK_PRIMITIVES_WRITTEN to be "
<< tfResult.numPrimitives << ", reference value is " << 2*primitiveCounts[tessLevelCaseNdx][subTessLevelCaseNdx]
<< TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of primitives");
return STOP;
}
{
const int half = (int)tfResult.varying.size()/2;
const vector<Vec3> prim0Vertices = vector<Vec3>(tfResult.varying.begin(), tfResult.varying.begin() + half);
const Vec3* const prim1Vertices = &tfResult.varying[half];
for (int vtxNdx = 0; vtxNdx < (int)prim0Vertices.size(); vtxNdx++)
{
if (prim0Vertices[vtxNdx] != prim1Vertices[vtxNdx])
{
log << TestLog::Message << "Failure: tessellation coordinate at index " << vtxNdx << " differs between two primitives drawn in one draw call" << TestLog::EndMessage
<< TestLog::Message << "Note: the coordinate is " << prim0Vertices[vtxNdx] << " for the first primitive and " << prim1Vertices[vtxNdx] << " for the second" << TestLog::EndMessage
<< TestLog::Message << "Note: tessellation levels for both primitives were: " << tessellationLevelsString(&inner[0], &outer[0]) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of primitives");
return STOP;
}
}
if (programNdx == 0 && subTessLevelCaseNdx == 0)
firstPrimVertices = prim0Vertices;
else
{
const bool compareOk = compare(firstPrimVertices, prim0Vertices, levelCase.mem);
if (!compareOk)
{
log << TestLog::Message << "Note: comparison of tessellation coordinates failed; comparison was made between following cases:\n"
<< " - case A: program 0, tessellation levels: " << tessLevelCases[tessLevelCaseNdx].levels[0].description() << "\n"
<< " - case B: program " << programNdx << ", tessellation levels: " << tessLevels.description() << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of primitives");
return STOP;
}
}
}
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/*--------------------------------------------------------------------*//*!
* \brief Test invariance rule #1
*
* Test that the sequence of primitives input to the TES only depends on
* the tessellation levels, tessellation mode, spacing mode, winding, and
* point mode.
*//*--------------------------------------------------------------------*/
class InvariantPrimitiveSetCase : public PrimitiveSetInvarianceCase
{
public:
InvariantPrimitiveSetCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode)
: PrimitiveSetInvarianceCase(context, name, description, primType, spacing, usePointMode, winding == WINDING_CCW ? WINDINGUSAGE_CCW
: winding == WINDING_CW ? WINDINGUSAGE_CW
: WINDINGUSAGE_LAST)
{
}
protected:
virtual bool compare (const vector<Vec3>& coordsA, const vector<Vec3>& coordsB, int) const
{
for (int vtxNdx = 0; vtxNdx < (int)coordsA.size(); vtxNdx++)
{
if (coordsA[vtxNdx] != coordsB[vtxNdx])
{
m_testCtx.getLog() << TestLog::Message << "Failure: tessellation coordinate at index " << vtxNdx << " differs between two programs" << TestLog::EndMessage
<< TestLog::Message << "Note: the coordinate is " << coordsA[vtxNdx] << " for the first program and " << coordsB[vtxNdx] << " for the other" << TestLog::EndMessage;
return false;
}
}
return true;
}
};
/*--------------------------------------------------------------------*//*!
* \brief Test invariance rule #2
*
* Test that the set of vertices along an outer edge of a quad or triangle
* only depends on that edge's tessellation level, and spacing.
*
* For each (outer) edge in the quad or triangle, draw multiple patches
* with identical tessellation levels for that outer edge but with
* different values for the other outer edges; compare, among the
* primitives, the vertices generated for that outer edge. Repeat with
* different programs, using different winding etc. settings. Compare
* the edge's vertices between different programs.
*//*--------------------------------------------------------------------*/
class InvariantOuterEdgeCase : public TestCase
{
public:
InvariantOuterEdgeCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing)
: TestCase (context, name, description)
, m_primitiveType (primType)
, m_spacing (spacing)
{
DE_ASSERT(primType == TESSPRIMITIVETYPE_TRIANGLES || primType == TESSPRIMITIVETYPE_QUADS);
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
struct Program
{
Winding winding;
bool usePointMode;
SharedPtr<const ShaderProgram> program;
Program (Winding w, bool point, const SharedPtr<const ShaderProgram>& prog) : winding(w), usePointMode(point), program(prog) {}
string description (void) const { return string() + "winding mode " + getWindingShaderName(winding) + ", " + (usePointMode ? "" : "don't ") + "use point mode"; };
};
static vector<float> generatePatchTessLevels (int numPatches, int constantOuterLevelIndex, float constantOuterLevel);
static const int RENDER_SIZE = 16;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
vector<Program> m_programs;
};
vector<float> InvariantOuterEdgeCase::generatePatchTessLevels (int numPatches, int constantOuterLevelIndex, float constantOuterLevel)
{
de::Random rnd(123);
return generateRandomPatchTessLevels(numPatches, constantOuterLevelIndex, constantOuterLevel, rnd);
}
void InvariantOuterEdgeCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
for (int windingI = 0; windingI < WINDING_LAST; windingI++)
{
const Winding winding = (Winding)windingI;
for (int usePointModeI = 0; usePointModeI <= 1; usePointModeI++)
{
const bool usePointMode = usePointModeI != 0;
const int programNdx = (int)m_programs.size();
const string floatLit01 = de::floatToString(10.0f / (float)(programNdx + 10), 2);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = " + de::toString(programNdx+1) + ") out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"void main (void)\n"
"{\n"
" gl_TessLevelInner[0] = in_tc_attr[0];\n"
" gl_TessLevelInner[1] = in_tc_attr[1];\n"
"\n"
" gl_TessLevelOuter[0] = in_tc_attr[2];\n"
" gl_TessLevelOuter[1] = in_tc_attr[3];\n"
" gl_TessLevelOuter[2] = in_tc_attr[4];\n"
" gl_TessLevelOuter[3] = in_tc_attr[5];\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing, winding, usePointMode) +
"\n"
"out highp vec4 in_f_color;\n"
"invariant out highp vec3 out_te_tessCoord;\n"
"\n"
"void main (void)\n"
"{\n"
" gl_Position = vec4(gl_TessCoord.xy*" + floatLit01 + " - float(gl_PrimitiveID)*0.05, 0.0, 1.0);\n"
" in_f_color = vec4(" + floatLit01 + ");\n"
" out_te_tessCoord = gl_TessCoord;\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_programs.push_back(Program(winding, usePointMode,
SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_tessCoord")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)))));
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Program" + de::toString(programNdx), "Program " + de::toString(programNdx));
if (programNdx == 0 || !m_programs.back().program->isOk())
m_testCtx.getLog() << *m_programs.back().program;
if (!m_programs.back().program->isOk())
TCU_FAIL("Program compilation failed");
if (programNdx > 0)
m_testCtx.getLog() << TestLog::Message << "Note: program " << programNdx << " is similar to above, except some constants are different, and: " << m_programs.back().description() << TestLog::EndMessage;
}
}
}
}
void InvariantOuterEdgeCase::deinit (void)
{
m_programs.clear();
}
InvariantOuterEdgeCase::IterateResult InvariantOuterEdgeCase::iterate (void)
{
typedef TransformFeedbackHandler<Vec3> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
static const float singleOuterEdgeLevels[] = { 1.0f, 1.2f, 1.9f, 2.3f, 2.8f, 3.3f, 3.8f, 10.2f, 1.6f, 24.4f, 24.7f, 63.0f };
const int numPatchesPerDrawCall = 10;
const vector<OuterEdgeDescription> edgeDescriptions = outerEdgeDescriptions(m_primitiveType);
{
// Compute the number vertices in the largest draw call, so we can allocate the TF buffer just once.
int maxNumVerticesInDrawCall = 0;
{
const vector<float> patchTessLevels = generatePatchTessLevels(numPatchesPerDrawCall, 0 /* outer-edge index doesn't affect vertex count */, arrayMax(singleOuterEdgeLevels));
for (int usePointModeI = 0; usePointModeI <= 1; usePointModeI++)
maxNumVerticesInDrawCall = de::max(maxNumVerticesInDrawCall,
multiplePatchReferenceVertexCount(m_primitiveType, m_spacing, usePointModeI != 0, &patchTessLevels[0], numPatchesPerDrawCall));
}
{
const TFHandler tfHandler(m_context.getRenderContext(), maxNumVerticesInDrawCall);
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, 6);
for (int outerEdgeIndex = 0; outerEdgeIndex < (int)edgeDescriptions.size(); outerEdgeIndex++)
{
const OuterEdgeDescription& edgeDesc = edgeDescriptions[outerEdgeIndex];
for (int outerEdgeLevelCaseNdx = 0; outerEdgeLevelCaseNdx < DE_LENGTH_OF_ARRAY(singleOuterEdgeLevels); outerEdgeLevelCaseNdx++)
{
typedef std::set<Vec3, VecLexLessThan<3> > Vec3Set;
const vector<float> patchTessLevels = generatePatchTessLevels(numPatchesPerDrawCall, outerEdgeIndex, singleOuterEdgeLevels[outerEdgeLevelCaseNdx]);
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 1, (int)patchTessLevels.size(), 0, &patchTessLevels[0]) };
Vec3Set firstOuterEdgeVertices; // Vertices of the outer edge of the first patch of the first program's draw call; used for comparison with other patches.
log << TestLog::Message << "Testing with outer tessellation level " << singleOuterEdgeLevels[outerEdgeLevelCaseNdx]
<< " for the " << edgeDesc.description() << " edge, and with various levels for other edges, and with all programs" << TestLog::EndMessage;
for (int programNdx = 0; programNdx < (int)m_programs.size(); programNdx++)
{
const Program& program = m_programs[programNdx];
const deUint32 programGL = program.program->getProgram();
gl.useProgram(programGL);
{
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, outputPrimitiveTypeGL(m_primitiveType, program.usePointMode),
DE_LENGTH_OF_ARRAY(bindings), &bindings[0], (int)patchTessLevels.size());
const int refNumVertices = multiplePatchReferenceVertexCount(m_primitiveType, m_spacing, program.usePointMode, &patchTessLevels[0], numPatchesPerDrawCall);
int numVerticesRead = 0;
if ((int)tfResult.varying.size() != refNumVertices)
{
log << TestLog::Message << "Failure: the number of vertices returned by transform feedback is "
<< tfResult.varying.size() << ", expected " << refNumVertices << TestLog::EndMessage
<< TestLog::Message << "Note: rendered " << numPatchesPerDrawCall
<< " patches in one draw call; tessellation levels for each patch are (in order [inner0, inner1, outer0, outer1, outer2, outer3]):\n"
<< containerStr(patchTessLevels, 6) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
// Check the vertices of each patch.
for (int patchNdx = 0; patchNdx < numPatchesPerDrawCall; patchNdx++)
{
const float* const innerLevels = &patchTessLevels[6*patchNdx + 0];
const float* const outerLevels = &patchTessLevels[6*patchNdx + 2];
const int patchNumVertices = referenceVertexCount(m_primitiveType, m_spacing, program.usePointMode, innerLevels, outerLevels);
Vec3Set outerEdgeVertices;
// We're interested in just the vertices on the current outer edge.
for(int vtxNdx = numVerticesRead; vtxNdx < numVerticesRead + patchNumVertices; vtxNdx++)
{
const Vec3& vtx = tfResult.varying[vtxNdx];
if (edgeDesc.contains(vtx))
outerEdgeVertices.insert(tfResult.varying[vtxNdx]);
}
// Check that the outer edge contains an appropriate number of vertices.
{
const int refNumVerticesOnOuterEdge = 1 + getClampedRoundedTessLevel(m_spacing, singleOuterEdgeLevels[outerEdgeLevelCaseNdx]);
if ((int)outerEdgeVertices.size() != refNumVerticesOnOuterEdge)
{
log << TestLog::Message << "Failure: the number of vertices on outer edge is " << outerEdgeVertices.size()
<< ", expected " << refNumVerticesOnOuterEdge << TestLog::EndMessage
<< TestLog::Message << "Note: vertices on the outer edge are:\n" << containerStr(outerEdgeVertices, 5, 0) << TestLog::EndMessage
<< TestLog::Message << "Note: the following parameters were used: " << program.description()
<< ", tessellation levels: " << tessellationLevelsString(innerLevels, outerLevels) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
}
// Compare the vertices to those of the first patch (unless this is the first patch).
if (programNdx == 0 && patchNdx == 0)
firstOuterEdgeVertices = outerEdgeVertices;
else
{
if (firstOuterEdgeVertices != outerEdgeVertices)
{
log << TestLog::Message << "Failure: vertices generated for the edge differ between the following cases:\n"
<< " - case A: " << m_programs[0].description() << ", tessellation levels: "
<< tessellationLevelsString(&patchTessLevels[0], &patchTessLevels[2]) << "\n"
<< " - case B: " << program.description() << ", tessellation levels: "
<< tessellationLevelsString(innerLevels, outerLevels) << TestLog::EndMessage;
log << TestLog::Message << "Note: resulting vertices for the edge for the cases were:\n"
<< " - case A: " << containerStr(firstOuterEdgeVertices, 5, 14) << "\n"
<< " - case B: " << containerStr(outerEdgeVertices, 5, 14) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
}
numVerticesRead += patchNumVertices;
}
DE_ASSERT(numVerticesRead == (int)tfResult.varying.size());
}
}
}
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/*--------------------------------------------------------------------*//*!
* \brief Test invariance rule #3
*
* Test that the vertices along an outer edge are placed symmetrically.
*
* Draw multiple patches with different tessellation levels and different
* point_mode, winding etc. Before outputting tesscoords with TF, mirror
* the vertices in the TES such that every vertex on an outer edge -
* except the possible middle vertex - should be duplicated in the output.
* Check that appropriate duplicates exist.
*//*--------------------------------------------------------------------*/
class SymmetricOuterEdgeCase : public TestCase
{
public:
SymmetricOuterEdgeCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode)
: TestCase (context, name, description)
, m_primitiveType (primType)
, m_spacing (spacing)
, m_winding (winding)
, m_usePointMode (usePointMode)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static vector<float> generatePatchTessLevels (int numPatches, int constantOuterLevelIndex, float constantOuterLevel);
static const int RENDER_SIZE = 16;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
const Winding m_winding;
const bool m_usePointMode;
SharedPtr<const glu::ShaderProgram> m_program;
};
vector<float> SymmetricOuterEdgeCase::generatePatchTessLevels (int numPatches, int constantOuterLevelIndex, float constantOuterLevel)
{
de::Random rnd(123);
return generateRandomPatchTessLevels(numPatches, constantOuterLevelIndex, constantOuterLevel, rnd);
}
void SymmetricOuterEdgeCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 1) out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"void main (void)\n"
"{\n"
" gl_TessLevelInner[0] = in_tc_attr[0];\n"
" gl_TessLevelInner[1] = in_tc_attr[1];\n"
"\n"
" gl_TessLevelOuter[0] = in_tc_attr[2];\n"
" gl_TessLevelOuter[1] = in_tc_attr[3];\n"
" gl_TessLevelOuter[2] = in_tc_attr[4];\n"
" gl_TessLevelOuter[3] = in_tc_attr[5];\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing, m_winding, m_usePointMode) +
"\n"
"out highp vec4 in_f_color;\n"
"out highp vec4 out_te_tessCoord_isMirrored;\n"
"\n"
"void main (void)\n"
"{\n"
+ (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ?
" float x = gl_TessCoord.x;\n"
" float y = gl_TessCoord.y;\n"
" float z = gl_TessCoord.z;\n"
" // Mirror one half of each outer edge onto the other half, except the endpoints (because they belong to two edges)\n"
" out_te_tessCoord_isMirrored = z == 0.0 && x > 0.5 && x != 1.0 ? vec4(1.0-x, 1.0-y, 0.0, 1.0)\n"
" : y == 0.0 && z > 0.5 && z != 1.0 ? vec4(1.0-x, 0.0, 1.0-z, 1.0)\n"
" : x == 0.0 && y > 0.5 && y != 1.0 ? vec4( 0.0, 1.0-y, 1.0-z, 1.0)\n"
" : vec4(x, y, z, 0.0);\n"
: m_primitiveType == TESSPRIMITIVETYPE_QUADS ?
" float x = gl_TessCoord.x;\n"
" float y = gl_TessCoord.y;\n"
" // Mirror one half of each outer edge onto the other half, except the endpoints (because they belong to two edges)\n"
" out_te_tessCoord_isMirrored = (x == 0.0 || x == 1.0) && y > 0.5 && y != 1.0 ? vec4( x, 1.0-y, 0.0, 1.0)\n"
" : (y == 0.0 || y == 1.0) && x > 0.5 && x != 1.0 ? vec4(1.0-x, y, 0.0, 1.0)\n"
" : vec4(x, y, 0.0, 0.0);\n"
: m_primitiveType == TESSPRIMITIVETYPE_ISOLINES ?
" float x = gl_TessCoord.x;\n"
" float y = gl_TessCoord.y;\n"
" // Mirror one half of each outer edge onto the other half\n"
" out_te_tessCoord_isMirrored = (x == 0.0 || x == 1.0) && y > 0.5 ? vec4(x, 1.0-y, 0.0, 1.0)\n"
" : vec4(x, y, 0.0, 0.0f);\n"
: DE_NULL) +
"\n"
" gl_Position = vec4(gl_TessCoord.xy, 0.0, 1.0);\n"
" in_f_color = vec4(1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_tessCoord_isMirrored")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void SymmetricOuterEdgeCase::deinit (void)
{
m_program.clear();
}
SymmetricOuterEdgeCase::IterateResult SymmetricOuterEdgeCase::iterate (void)
{
typedef TransformFeedbackHandler<Vec4> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
static const float singleOuterEdgeLevels[] = { 1.0f, 1.2f, 1.9f, 2.3f, 2.8f, 3.3f, 3.8f, 10.2f, 1.6f, 24.4f, 24.7f, 63.0f };
const vector<OuterEdgeDescription> edgeDescriptions = outerEdgeDescriptions(m_primitiveType);
{
// Compute the number vertices in the largest draw call, so we can allocate the TF buffer just once.
int maxNumVerticesInDrawCall;
{
const vector<float> patchTessLevels = generatePatchTessLevels(1, 0 /* outer-edge index doesn't affect vertex count */, arrayMax(singleOuterEdgeLevels));
maxNumVerticesInDrawCall = referenceVertexCount(m_primitiveType, m_spacing, m_usePointMode, &patchTessLevels[0], &patchTessLevels[2]);
}
{
const TFHandler tfHandler(m_context.getRenderContext(), maxNumVerticesInDrawCall);
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, 6);
for (int outerEdgeIndex = 0; outerEdgeIndex < (int)edgeDescriptions.size(); outerEdgeIndex++)
{
const OuterEdgeDescription& edgeDesc = edgeDescriptions[outerEdgeIndex];
for (int outerEdgeLevelCaseNdx = 0; outerEdgeLevelCaseNdx < DE_LENGTH_OF_ARRAY(singleOuterEdgeLevels); outerEdgeLevelCaseNdx++)
{
typedef std::set<Vec3, VecLexLessThan<3> > Vec3Set;
const vector<float> patchTessLevels = generatePatchTessLevels(1, outerEdgeIndex, singleOuterEdgeLevels[outerEdgeLevelCaseNdx]);
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 1, (int)patchTessLevels.size(), 0, &patchTessLevels[0]) };
log << TestLog::Message << "Testing with outer tessellation level " << singleOuterEdgeLevels[outerEdgeLevelCaseNdx]
<< " for the " << edgeDesc.description() << " edge, and with various levels for other edges" << TestLog::EndMessage;
{
const deUint32 programGL = m_program->getProgram();
gl.useProgram(programGL);
{
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, outputPrimitiveTypeGL(m_primitiveType, m_usePointMode),
DE_LENGTH_OF_ARRAY(bindings), &bindings[0], (int)patchTessLevels.size());
const int refNumVertices = referenceVertexCount(m_primitiveType, m_spacing, m_usePointMode, &patchTessLevels[0], &patchTessLevels[2]);
if ((int)tfResult.varying.size() != refNumVertices)
{
log << TestLog::Message << "Failure: the number of vertices returned by transform feedback is "
<< tfResult.varying.size() << ", expected " << refNumVertices << TestLog::EndMessage
<< TestLog::Message << "Note: rendered 1 patch, tessellation levels are (in order [inner0, inner1, outer0, outer1, outer2, outer3]):\n"
<< containerStr(patchTessLevels, 6) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
// Check the vertices.
{
Vec3Set nonMirroredEdgeVertices;
Vec3Set mirroredEdgeVertices;
// We're interested in just the vertices on the current outer edge.
for(int vtxNdx = 0; vtxNdx < refNumVertices; vtxNdx++)
{
const Vec3& vtx = tfResult.varying[vtxNdx].swizzle(0,1,2);
if (edgeDesc.contains(vtx))
{
// Ignore the middle vertex of the outer edge, as it's exactly at the mirroring point;
// for isolines, also ignore (0, 0) and (1, 0) because there's no mirrored counterpart for them.
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES && vtx == tcu::select(Vec3(0.0f), Vec3(0.5f), singleTrueMask<3>(edgeDesc.constantCoordinateIndex)))
continue;
if (m_primitiveType == TESSPRIMITIVETYPE_QUADS && vtx.swizzle(0,1) == tcu::select(Vec2(edgeDesc.constantCoordinateValueChoices[0]),
Vec2(0.5f),
singleTrueMask<2>(edgeDesc.constantCoordinateIndex)))
continue;
if (m_primitiveType == TESSPRIMITIVETYPE_ISOLINES && (vtx == Vec3(0.0f, 0.5f, 0.0f) || vtx == Vec3(1.0f, 0.5f, 0.0f) ||
vtx == Vec3(0.0f, 0.0f, 0.0f) || vtx == Vec3(1.0f, 0.0f, 0.0f)))
continue;
const bool isMirrored = tfResult.varying[vtxNdx].w() > 0.5f;
if (isMirrored)
mirroredEdgeVertices.insert(vtx);
else
nonMirroredEdgeVertices.insert(vtx);
}
}
if (m_primitiveType != TESSPRIMITIVETYPE_ISOLINES)
{
// Check that both endpoints are present. Note that endpoints aren't mirrored by the shader, since they belong to more than one edge.
Vec3 endpointA;
Vec3 endpointB;
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
{
endpointA = tcu::select(Vec3(1.0f), Vec3(0.0f), singleTrueMask<3>((edgeDesc.constantCoordinateIndex + 1) % 3));
endpointB = tcu::select(Vec3(1.0f), Vec3(0.0f), singleTrueMask<3>((edgeDesc.constantCoordinateIndex + 2) % 3));
}
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS)
{
endpointA.xy() = tcu::select(Vec2(edgeDesc.constantCoordinateValueChoices[0]), Vec2(0.0f), singleTrueMask<2>(edgeDesc.constantCoordinateIndex));
endpointB.xy() = tcu::select(Vec2(edgeDesc.constantCoordinateValueChoices[0]), Vec2(1.0f), singleTrueMask<2>(edgeDesc.constantCoordinateIndex));
}
else
DE_ASSERT(false);
if (!contains(nonMirroredEdgeVertices, endpointA) ||
!contains(nonMirroredEdgeVertices, endpointB))
{
log << TestLog::Message << "Failure: edge doesn't contain both endpoints, " << endpointA << " and " << endpointB << TestLog::EndMessage
<< TestLog::Message << "Note: non-mirrored vertices:\n" << containerStr(nonMirroredEdgeVertices, 5)
<< "\nmirrored vertices:\n" << containerStr(mirroredEdgeVertices, 5) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
nonMirroredEdgeVertices.erase(endpointA);
nonMirroredEdgeVertices.erase(endpointB);
}
if (nonMirroredEdgeVertices != mirroredEdgeVertices)
{
log << TestLog::Message << "Failure: the set of mirrored edges isn't equal to the set of non-mirrored edges (ignoring endpoints and possible middle)" << TestLog::EndMessage
<< TestLog::Message << "Note: non-mirrored vertices:\n" << containerStr(nonMirroredEdgeVertices, 5)
<< "\nmirrored vertices:\n" << containerStr(mirroredEdgeVertices, 5) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
}
}
}
}
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/*--------------------------------------------------------------------*//*!
* \brief Test invariance rule #4
*
* Test that the vertices on an outer edge don't depend on which of the
* edges it is, other than with respect to component order.
*//*--------------------------------------------------------------------*/
class OuterEdgeVertexSetIndexIndependenceCase : public TestCase
{
public:
OuterEdgeVertexSetIndexIndependenceCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode)
: TestCase (context, name, description)
, m_primitiveType (primType)
, m_spacing (spacing)
, m_winding (winding)
, m_usePointMode (usePointMode)
{
DE_ASSERT(primType == TESSPRIMITIVETYPE_TRIANGLES || primType == TESSPRIMITIVETYPE_QUADS);
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static vector<float> generatePatchTessLevels (int numPatches, int constantOuterLevelIndex, float constantOuterLevel);
static const int RENDER_SIZE = 16;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
const Winding m_winding;
const bool m_usePointMode;
SharedPtr<const glu::ShaderProgram> m_program;
};
vector<float> OuterEdgeVertexSetIndexIndependenceCase::generatePatchTessLevels (int numPatches, int constantOuterLevelIndex, float constantOuterLevel)
{
de::Random rnd(123);
return generateRandomPatchTessLevels(numPatches, constantOuterLevelIndex, constantOuterLevel, rnd);
}
void OuterEdgeVertexSetIndexIndependenceCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 1) out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"void main (void)\n"
"{\n"
" gl_TessLevelInner[0] = in_tc_attr[0];\n"
" gl_TessLevelInner[1] = in_tc_attr[1];\n"
"\n"
" gl_TessLevelOuter[0] = in_tc_attr[2];\n"
" gl_TessLevelOuter[1] = in_tc_attr[3];\n"
" gl_TessLevelOuter[2] = in_tc_attr[4];\n"
" gl_TessLevelOuter[3] = in_tc_attr[5];\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing, m_winding, m_usePointMode) +
"\n"
"out highp vec4 in_f_color;\n"
"out highp vec3 out_te_tessCoord;\n"
"\n"
"void main (void)\n"
"{\n"
" out_te_tessCoord = gl_TessCoord;"
" gl_Position = vec4(gl_TessCoord.xy, 0.0, 1.0);\n"
" in_f_color = vec4(1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_tessCoord")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void OuterEdgeVertexSetIndexIndependenceCase::deinit (void)
{
m_program.clear();
}
OuterEdgeVertexSetIndexIndependenceCase::IterateResult OuterEdgeVertexSetIndexIndependenceCase::iterate (void)
{
typedef TransformFeedbackHandler<Vec3> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
const deUint32 programGL = m_program->getProgram();
static const float singleOuterEdgeLevels[] = { 1.0f, 1.2f, 1.9f, 2.3f, 2.8f, 3.3f, 3.8f, 10.2f, 1.6f, 24.4f, 24.7f, 63.0f };
const vector<OuterEdgeDescription> edgeDescriptions = outerEdgeDescriptions(m_primitiveType);
gl.useProgram(programGL);
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, 6);
{
// Compute the number vertices in the largest draw call, so we can allocate the TF buffer just once.
int maxNumVerticesInDrawCall = 0;
{
const vector<float> patchTessLevels = generatePatchTessLevels(1, 0 /* outer-edge index doesn't affect vertex count */, arrayMax(singleOuterEdgeLevels));
maxNumVerticesInDrawCall = referenceVertexCount(m_primitiveType, m_spacing, m_usePointMode, &patchTessLevels[0], &patchTessLevels[2]);
}
{
const TFHandler tfHandler(m_context.getRenderContext(), maxNumVerticesInDrawCall);
for (int outerEdgeLevelCaseNdx = 0; outerEdgeLevelCaseNdx < DE_LENGTH_OF_ARRAY(singleOuterEdgeLevels); outerEdgeLevelCaseNdx++)
{
typedef std::set<Vec3, VecLexLessThan<3> > Vec3Set;
Vec3Set firstEdgeVertices;
for (int outerEdgeIndex = 0; outerEdgeIndex < (int)edgeDescriptions.size(); outerEdgeIndex++)
{
const OuterEdgeDescription& edgeDesc = edgeDescriptions[outerEdgeIndex];
const vector<float> patchTessLevels = generatePatchTessLevels(1, outerEdgeIndex, singleOuterEdgeLevels[outerEdgeLevelCaseNdx]);
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 1, (int)patchTessLevels.size(), 0, &patchTessLevels[0]) };
log << TestLog::Message << "Testing with outer tessellation level " << singleOuterEdgeLevels[outerEdgeLevelCaseNdx]
<< " for the " << edgeDesc.description() << " edge, and with various levels for other edges" << TestLog::EndMessage;
{
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, outputPrimitiveTypeGL(m_primitiveType, m_usePointMode),
DE_LENGTH_OF_ARRAY(bindings), &bindings[0], (int)patchTessLevels.size());
const int refNumVertices = referenceVertexCount(m_primitiveType, m_spacing, m_usePointMode, &patchTessLevels[0], &patchTessLevels[2]);
if ((int)tfResult.varying.size() != refNumVertices)
{
log << TestLog::Message << "Failure: the number of vertices returned by transform feedback is "
<< tfResult.varying.size() << ", expected " << refNumVertices << TestLog::EndMessage
<< TestLog::Message << "Note: rendered 1 patch, tessellation levels are (in order [inner0, inner1, outer0, outer1, outer2, outer3]):\n"
<< containerStr(patchTessLevels, 6) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
{
Vec3Set currentEdgeVertices;
// Get the vertices on the current outer edge.
for(int vtxNdx = 0; vtxNdx < refNumVertices; vtxNdx++)
{
const Vec3& vtx = tfResult.varying[vtxNdx];
if (edgeDesc.contains(vtx))
{
// Swizzle components to match the order of the first edge.
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
{
currentEdgeVertices.insert(outerEdgeIndex == 0 ? vtx
: outerEdgeIndex == 1 ? vtx.swizzle(1, 0, 2)
: outerEdgeIndex == 2 ? vtx.swizzle(2, 1, 0)
: Vec3(-1.0f));
}
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS)
{
currentEdgeVertices.insert(Vec3(outerEdgeIndex == 0 ? vtx.y()
: outerEdgeIndex == 1 ? vtx.x()
: outerEdgeIndex == 2 ? vtx.y()
: outerEdgeIndex == 3 ? vtx.x()
: -1.0f,
0.0f, 0.0f));
}
else
DE_ASSERT(false);
}
}
if (outerEdgeIndex == 0)
firstEdgeVertices = currentEdgeVertices;
else
{
// Compare vertices of this edge to those of the first edge.
if (currentEdgeVertices != firstEdgeVertices)
{
const char* const swizzleDesc = m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? (outerEdgeIndex == 1 ? "(y, x, z)"
: outerEdgeIndex == 2 ? "(z, y, x)"
: DE_NULL)
: m_primitiveType == TESSPRIMITIVETYPE_QUADS ? (outerEdgeIndex == 1 ? "(x, 0)"
: outerEdgeIndex == 2 ? "(y, 0)"
: outerEdgeIndex == 3 ? "(x, 0)"
: DE_NULL)
: DE_NULL;
log << TestLog::Message << "Failure: the set of vertices on the " << edgeDesc.description() << " edge"
<< " doesn't match the set of vertices on the " << edgeDescriptions[0].description() << " edge" << TestLog::EndMessage
<< TestLog::Message << "Note: set of vertices on " << edgeDesc.description() << " edge, components swizzled like " << swizzleDesc
<< " to match component order on first edge:\n" << containerStr(currentEdgeVertices, 5)
<< "\non " << edgeDescriptions[0].description() << " edge:\n" << containerStr(firstEdgeVertices, 5) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid set of vertices");
return STOP;
}
}
}
}
}
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/*--------------------------------------------------------------------*//*!
* \brief Test invariance rule #5
*
* Test that the set of triangles input to the TES only depends on the
* tessellation levels, tessellation mode and spacing mode. Specifically,
* winding doesn't change the set of triangles, though it can change the
* order in which they are input to TES, and can (and will) change the
* vertex order within a triangle.
*//*--------------------------------------------------------------------*/
class InvariantTriangleSetCase : public PrimitiveSetInvarianceCase
{
public:
InvariantTriangleSetCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing)
: PrimitiveSetInvarianceCase(context, name, description, primType, spacing, false, WINDINGUSAGE_VARY)
{
DE_ASSERT(primType == TESSPRIMITIVETYPE_TRIANGLES || primType == TESSPRIMITIVETYPE_QUADS);
}
protected:
virtual bool compare (const vector<Vec3>& coordsA, const vector<Vec3>& coordsB, int) const
{
return compareTriangleSets(coordsA, coordsB, m_testCtx.getLog());
}
};
/*--------------------------------------------------------------------*//*!
* \brief Test invariance rule #6
*
* Test that the set of inner triangles input to the TES only depends on
* the inner tessellation levels, tessellation mode and spacing mode.
*//*--------------------------------------------------------------------*/
class InvariantInnerTriangleSetCase : public PrimitiveSetInvarianceCase
{
public:
InvariantInnerTriangleSetCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing)
: PrimitiveSetInvarianceCase(context, name, description, primType, spacing, false, WINDINGUSAGE_VARY)
{
DE_ASSERT(primType == TESSPRIMITIVETYPE_TRIANGLES || primType == TESSPRIMITIVETYPE_QUADS);
}
protected:
virtual vector<LevelCase> genTessLevelCases (void) const
{
const int numSubCases = 4;
const vector<LevelCase> baseResults = PrimitiveSetInvarianceCase::genTessLevelCases();
vector<LevelCase> result;
de::Random rnd (123);
// Generate variants with different values for irrelevant levels.
for (int baseNdx = 0; baseNdx < (int)baseResults.size(); baseNdx++)
{
const TessLevels& base = baseResults[baseNdx].levels[0];
TessLevels levels = base;
LevelCase levelCase;
for (int subNdx = 0; subNdx < numSubCases; subNdx++)
{
levelCase.levels.push_back(levels);
for (int i = 0; i < DE_LENGTH_OF_ARRAY(levels.outer); i++)
levels.outer[i] = rnd.getFloat(2.0f, 16.0f);
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
levels.inner[1] = rnd.getFloat(2.0f, 16.0f);
}
result.push_back(levelCase);
}
return result;
}
struct IsInnerTriangleTriangle
{
bool operator() (const Vec3* vertices) const
{
for (int v = 0; v < 3; v++)
for (int c = 0; c < 3; c++)
if (vertices[v][c] == 0.0f)
return false;
return true;
}
};
struct IsInnerQuadTriangle
{
bool operator() (const Vec3* vertices) const
{
for (int v = 0; v < 3; v++)
for (int c = 0; c < 2; c++)
if (vertices[v][c] == 0.0f || vertices[v][c] == 1.0f)
return false;
return true;
}
};
virtual bool compare (const vector<Vec3>& coordsA, const vector<Vec3>& coordsB, int) const
{
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
return compareTriangleSets(coordsA, coordsB, m_testCtx.getLog(), IsInnerTriangleTriangle(), "outer triangles");
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS)
return compareTriangleSets(coordsA, coordsB, m_testCtx.getLog(), IsInnerQuadTriangle(), "outer triangles");
else
{
DE_ASSERT(false);
return false;
}
}
};
/*--------------------------------------------------------------------*//*!
* \brief Test invariance rule #7
*
* Test that the set of outer triangles input to the TES only depends on
* tessellation mode, spacing mode and the inner and outer tessellation
* levels corresponding to the inner and outer edges relevant to that
* triangle.
*//*--------------------------------------------------------------------*/
class InvariantOuterTriangleSetCase : public PrimitiveSetInvarianceCase
{
public:
InvariantOuterTriangleSetCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing)
: PrimitiveSetInvarianceCase(context, name, description, primType, spacing, false, WINDINGUSAGE_VARY)
{
DE_ASSERT(primType == TESSPRIMITIVETYPE_TRIANGLES || primType == TESSPRIMITIVETYPE_QUADS);
}
protected:
virtual vector<LevelCase> genTessLevelCases (void) const
{
const int numSubCasesPerEdge = 4;
const int numEdges = m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? 3
: m_primitiveType == TESSPRIMITIVETYPE_QUADS ? 4
: -1;
const vector<LevelCase> baseResult = PrimitiveSetInvarianceCase::genTessLevelCases();
vector<LevelCase> result;
de::Random rnd (123);
// Generate variants with different values for irrelevant levels.
for (int baseNdx = 0; baseNdx < (int)baseResult.size(); baseNdx++)
{
const TessLevels& base = baseResult[baseNdx].levels[0];
if (base.inner[0] == 1.0f || (m_primitiveType == TESSPRIMITIVETYPE_QUADS && base.inner[1] == 1.0f))
continue;
for (int edgeNdx = 0; edgeNdx < numEdges; edgeNdx++)
{
TessLevels levels = base;
LevelCase levelCase;
levelCase.mem = edgeNdx;
for (int subCaseNdx = 0; subCaseNdx < numSubCasesPerEdge; subCaseNdx++)
{
levelCase.levels.push_back(levels);
for (int i = 0; i < DE_LENGTH_OF_ARRAY(levels.outer); i++)
{
if (i != edgeNdx)
levels.outer[i] = rnd.getFloat(2.0f, 16.0f);
}
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
levels.inner[1] = rnd.getFloat(2.0f, 16.0f);
}
result.push_back(levelCase);
}
}
return result;
}
class IsTriangleTriangleOnOuterEdge
{
public:
IsTriangleTriangleOnOuterEdge (int edgeNdx) : m_edgeNdx(edgeNdx) {}
bool operator() (const Vec3* vertices) const
{
bool touchesAppropriateEdge = false;
for (int v = 0; v < 3; v++)
if (vertices[v][m_edgeNdx] == 0.0f)
touchesAppropriateEdge = true;
if (touchesAppropriateEdge)
{
const Vec3 avg = (vertices[0] + vertices[1] + vertices[2]) / 3.0f;
return avg[m_edgeNdx] < avg[(m_edgeNdx+1)%3] &&
avg[m_edgeNdx] < avg[(m_edgeNdx+2)%3];
}
return false;
}
private:
int m_edgeNdx;
};
class IsQuadTriangleOnOuterEdge
{
public:
IsQuadTriangleOnOuterEdge (int edgeNdx) : m_edgeNdx(edgeNdx) {}
bool onEdge (const Vec3& v) const
{
return v[m_edgeNdx%2] == (m_edgeNdx <= 1 ? 0.0f : 1.0f);
}
static inline bool onAnyEdge (const Vec3& v)
{
return v[0] == 0.0f || v[0] == 1.0f || v[1] == 0.0f || v[1] == 1.0f;
}
bool operator() (const Vec3* vertices) const
{
for (int v = 0; v < 3; v++)
{
const Vec3& a = vertices[v];
const Vec3& b = vertices[(v+1)%3];
const Vec3& c = vertices[(v+2)%3];
if (onEdge(a) && onEdge(b))
return true;
if (onEdge(c) && !onAnyEdge(a) && !onAnyEdge(b) && a[m_edgeNdx%2] == b[m_edgeNdx%2])
return true;
}
return false;
}
private:
int m_edgeNdx;
};
virtual bool compare (const vector<Vec3>& coordsA, const vector<Vec3>& coordsB, int outerEdgeNdx) const
{
if (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES)
{
return compareTriangleSets(coordsA, coordsB, m_testCtx.getLog(),
IsTriangleTriangleOnOuterEdge(outerEdgeNdx),
("inner triangles, and outer triangles corresponding to other edge than edge "
+ outerEdgeDescriptions(m_primitiveType)[outerEdgeNdx].description()).c_str());
}
else if (m_primitiveType == TESSPRIMITIVETYPE_QUADS)
{
return compareTriangleSets(coordsA, coordsB, m_testCtx.getLog(),
IsQuadTriangleOnOuterEdge(outerEdgeNdx),
("inner triangles, and outer triangles corresponding to other edge than edge "
+ outerEdgeDescriptions(m_primitiveType)[outerEdgeNdx].description()).c_str());
}
else
DE_ASSERT(false);
return true;
}
};
/*--------------------------------------------------------------------*//*!
* \brief Base class for testing individual components of tess coords
*
* Useful for testing parts of invariance rule #8.
*//*--------------------------------------------------------------------*/
class TessCoordComponentInvarianceCase : public TestCase
{
public:
TessCoordComponentInvarianceCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode)
: TestCase (context, name, description)
, m_primitiveType (primType)
, m_spacing (spacing)
, m_winding (winding)
, m_usePointMode (usePointMode)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
protected:
virtual string tessEvalOutputComponentStatements (const char* tessCoordComponentName, const char* outputComponentName) const = 0;
virtual bool checkTessCoordComponent (float component) const = 0;
private:
static vector<float> genTessLevelCases (int numCases);
static const int RENDER_SIZE = 16;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
const Winding m_winding;
const bool m_usePointMode;
SharedPtr<const glu::ShaderProgram> m_program;
};
void TessCoordComponentInvarianceCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 1) out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"void main (void)\n"
"{\n"
" gl_TessLevelInner[0] = in_tc_attr[0];\n"
" gl_TessLevelInner[1] = in_tc_attr[1];\n"
"\n"
" gl_TessLevelOuter[0] = in_tc_attr[2];\n"
" gl_TessLevelOuter[1] = in_tc_attr[3];\n"
" gl_TessLevelOuter[2] = in_tc_attr[4];\n"
" gl_TessLevelOuter[3] = in_tc_attr[5];\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing, m_winding, m_usePointMode) +
"\n"
"out highp vec4 in_f_color;\n"
"out highp vec3 out_te_output;\n"
"\n"
"void main (void)\n"
"{\n"
+ tessEvalOutputComponentStatements("gl_TessCoord.x", "out_te_output.x")
+ tessEvalOutputComponentStatements("gl_TessCoord.y", "out_te_output.y")
+ (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ?
tessEvalOutputComponentStatements("gl_TessCoord.z", "out_te_output.z") :
" out_te_output.z = 0.0f;\n") +
" gl_Position = vec4(gl_TessCoord.xy, 0.0, 1.0);\n"
" in_f_color = vec4(1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_output")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void TessCoordComponentInvarianceCase::deinit (void)
{
m_program.clear();
}
vector<float> TessCoordComponentInvarianceCase::genTessLevelCases (int numCases)
{
de::Random rnd(123);
vector<float> result;
for (int i = 0; i < numCases; i++)
for (int j = 0; j < 6; j++)
result.push_back(rnd.getFloat(1.0f, 63.0f));
return result;
}
TessCoordComponentInvarianceCase::IterateResult TessCoordComponentInvarianceCase::iterate (void)
{
typedef TransformFeedbackHandler<Vec3> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
const int numTessLevelCases = 32;
const vector<float> tessLevels = genTessLevelCases(numTessLevelCases);
const deUint32 programGL = m_program->getProgram();
gl.useProgram(programGL);
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, 6);
{
// Compute the number vertices in the largest draw call, so we can allocate the TF buffer just once.
int maxNumVerticesInDrawCall = 0;
for (int i = 0; i < numTessLevelCases; i++)
maxNumVerticesInDrawCall = de::max(maxNumVerticesInDrawCall, referenceVertexCount(m_primitiveType, m_spacing, m_usePointMode, &tessLevels[6*i+0], &tessLevels[6*i+2]));
{
const TFHandler tfHandler(m_context.getRenderContext(), maxNumVerticesInDrawCall);
for (int tessLevelCaseNdx = 0; tessLevelCaseNdx < numTessLevelCases; tessLevelCaseNdx++)
{
log << TestLog::Message << "Testing with tessellation levels: " << tessellationLevelsString(&tessLevels[6*tessLevelCaseNdx+0], &tessLevels[6*tessLevelCaseNdx+2]) << TestLog::EndMessage;
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 1, (int)6, 0, &tessLevels[6*tessLevelCaseNdx]) };
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, outputPrimitiveTypeGL(m_primitiveType, m_usePointMode),
DE_LENGTH_OF_ARRAY(bindings), &bindings[0], 6);
for (int vtxNdx = 0; vtxNdx < (int)tfResult.varying.size(); vtxNdx++)
{
const Vec3& vec = tfResult.varying[vtxNdx];
const int numComps = m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? 3 : 2;
for (int compNdx = 0; compNdx < numComps; compNdx++)
{
if (!checkTessCoordComponent(vec[compNdx]))
{
log << TestLog::Message << "Note: output value at index " << vtxNdx << " is "
<< (m_primitiveType == TESSPRIMITIVETYPE_TRIANGLES ? de::toString(vec) : de::toString(vec.swizzle(0,1)))
<< TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Invalid tessellation coordinate component");
return STOP;
}
}
}
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/*--------------------------------------------------------------------*//*!
* \brief Test first part of invariance rule #8
*
* Test that all (relevant) components of tess coord are in [0,1].
*//*--------------------------------------------------------------------*/
class TessCoordComponentRangeCase : public TessCoordComponentInvarianceCase
{
public:
TessCoordComponentRangeCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode)
: TessCoordComponentInvarianceCase(context, name, description, primType, spacing, winding, usePointMode)
{
}
protected:
virtual string tessEvalOutputComponentStatements (const char* tessCoordComponentName, const char* outputComponentName) const
{
return string() + "\t" + outputComponentName + " = " + tessCoordComponentName + ";\n";
}
virtual bool checkTessCoordComponent (float component) const
{
if (!de::inRange(component, 0.0f, 1.0f))
{
m_testCtx.getLog() << TestLog::Message << "Failure: tess coord component isn't in range [0,1]" << TestLog::EndMessage;
return false;
}
return true;
}
};
/*--------------------------------------------------------------------*//*!
* \brief Test second part of invariance rule #8
*
* Test that all (relevant) components of tess coord are in [0,1] and
* 1.0-c is exact for every such component c.
*//*--------------------------------------------------------------------*/
class OneMinusTessCoordComponentCase : public TessCoordComponentInvarianceCase
{
public:
OneMinusTessCoordComponentCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode)
: TessCoordComponentInvarianceCase(context, name, description, primType, spacing, winding, usePointMode)
{
}
protected:
virtual string tessEvalOutputComponentStatements (const char* tessCoordComponentName, const char* outputComponentName) const
{
return string() + " {\n"
" float oneMinusComp = 1.0 - " + tessCoordComponentName + ";\n"
" " + outputComponentName + " = " + tessCoordComponentName + " + oneMinusComp;\n"
" }\n";
}
virtual bool checkTessCoordComponent (float component) const
{
if (component != 1.0f)
{
m_testCtx.getLog() << TestLog::Message << "Failure: comp + (1.0-comp) doesn't equal 1.0 for some component of tessellation coordinate" << TestLog::EndMessage;
return false;
}
return true;
}
};
/*--------------------------------------------------------------------*//*!
* \brief Test that patch is discarded if relevant outer level <= 0.0
*
* Draws patches with different combinations of tessellation levels,
* varying which levels are negative. Verifies by checking that colored
* pixels exist inside the area of valid primitives, and only black pixels
* exist inside the area of discarded primitives. An additional sanity
* test is done, checking that the number of primitives written by TF is
* correct.
*//*--------------------------------------------------------------------*/
class PrimitiveDiscardCase : public TestCase
{
public:
PrimitiveDiscardCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, SpacingMode spacing, Winding winding, bool usePointMode)
: TestCase (context, name, description)
, m_primitiveType (primType)
, m_spacing (spacing)
, m_winding (winding)
, m_usePointMode (usePointMode)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
static vector<float> genAttributes (void);
static const int RENDER_SIZE = 256;
const TessPrimitiveType m_primitiveType;
const SpacingMode m_spacing;
const Winding m_winding;
const bool m_usePointMode;
SharedPtr<const glu::ShaderProgram> m_program;
};
void PrimitiveDiscardCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 1) out;\n"
"\n"
"in highp float in_tc_attr[];\n"
"\n"
"patch out highp vec2 in_te_positionScale;\n"
"patch out highp vec2 in_te_positionOffset;\n"
"\n"
"void main (void)\n"
"{\n"
" in_te_positionScale = vec2(in_tc_attr[6], in_tc_attr[7]);\n"
" in_te_positionOffset = vec2(in_tc_attr[8], in_tc_attr[9]);\n"
"\n"
" gl_TessLevelInner[0] = in_tc_attr[0];\n"
" gl_TessLevelInner[1] = in_tc_attr[1];\n"
"\n"
" gl_TessLevelOuter[0] = in_tc_attr[2];\n"
" gl_TessLevelOuter[1] = in_tc_attr[3];\n"
" gl_TessLevelOuter[2] = in_tc_attr[4];\n"
" gl_TessLevelOuter[3] = in_tc_attr[5];\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType, m_spacing, m_winding, m_usePointMode) +
"\n"
"patch in highp vec2 in_te_positionScale;\n"
"patch in highp vec2 in_te_positionOffset;\n"
"\n"
"out highp vec3 out_te_tessCoord;\n"
"\n"
"void main (void)\n"
"{\n"
" out_te_tessCoord = gl_TessCoord;\n"
" gl_Position = vec4(gl_TessCoord.xy*in_te_positionScale + in_te_positionOffset, 0.0, 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = vec4(1.0);\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_tessCoord")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void PrimitiveDiscardCase::deinit (void)
{
m_program.clear();
}
vector<float> PrimitiveDiscardCase::genAttributes (void)
{
// Generate input attributes (tessellation levels, and position scale and
// offset) for a number of primitives. Each primitive has a different
// combination of tessellatio levels; each level is either a valid
// value or an "invalid" value (negative or zero, chosen from
// invalidTessLevelChoices).
// \note The attributes are generated in such an order that all of the
// valid attribute tuples come before the first invalid one both
// in the result vector, and when scanning the resulting 2d grid
// of primitives is scanned in y-major order. This makes
// verification somewhat simpler.
static const float baseTessLevels[6] = { 3.0f, 4.0f, 5.0f, 6.0f, 7.0f, 8.0f };
static const float invalidTessLevelChoices[] = { -0.42f, 0.0f };
const int numChoices = 1 + DE_LENGTH_OF_ARRAY(invalidTessLevelChoices);
float choices[6][numChoices];
vector<float> result;
for (int levelNdx = 0; levelNdx < 6; levelNdx++)
for (int choiceNdx = 0; choiceNdx < numChoices; choiceNdx++)
choices[levelNdx][choiceNdx] = choiceNdx == 0 ? baseTessLevels[levelNdx] : invalidTessLevelChoices[choiceNdx-1];
{
const int numCols = intPow(numChoices, 6/2); // sqrt(numChoices**6) == sqrt(number of primitives)
const int numRows = numCols;
int index = 0;
int i[6];
// We could do this with some generic combination-generation function, but meh, it's not that bad.
for (i[2] = 0; i[2] < numChoices; i[2]++) // First outer
for (i[3] = 0; i[3] < numChoices; i[3]++) // Second outer
for (i[4] = 0; i[4] < numChoices; i[4]++) // Third outer
for (i[5] = 0; i[5] < numChoices; i[5]++) // Fourth outer
for (i[0] = 0; i[0] < numChoices; i[0]++) // First inner
for (i[1] = 0; i[1] < numChoices; i[1]++) // Second inner
{
for (int j = 0; j < 6; j++)
result.push_back(choices[j][i[j]]);
{
const int col = index % numCols;
const int row = index / numCols;
// Position scale.
result.push_back((float)2.0f / (float)numCols);
result.push_back((float)2.0f / (float)numRows);
// Position offset.
result.push_back((float)col / (float)numCols * 2.0f - 1.0f);
result.push_back((float)row / (float)numRows * 2.0f - 1.0f);
}
index++;
}
}
return result;
}
PrimitiveDiscardCase::IterateResult PrimitiveDiscardCase::iterate (void)
{
typedef TransformFeedbackHandler<Vec3> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
const vector<float> attributes = genAttributes();
const int numAttribsPerPrimitive = 6+2+2; // Tess levels, scale, offset.
const int numPrimitives = (int)attributes.size() / numAttribsPerPrimitive;
const deUint32 programGL = m_program->getProgram();
gl.useProgram(programGL);
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, numAttribsPerPrimitive);
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.clear(GL_COLOR_BUFFER_BIT);
// Check the convenience assertion that all discarded patches come after the last non-discarded patch.
{
bool discardedPatchEncountered = false;
for (int patchNdx = 0; patchNdx < numPrimitives; patchNdx++)
{
const bool discard = isPatchDiscarded(m_primitiveType, &attributes[numAttribsPerPrimitive*patchNdx + 2]);
DE_ASSERT(discard || !discardedPatchEncountered);
discardedPatchEncountered = discard;
}
DE_UNREF(discardedPatchEncountered);
}
{
int numVerticesInDrawCall = 0;
for (int patchNdx = 0; patchNdx < numPrimitives; patchNdx++)
numVerticesInDrawCall += referenceVertexCount(m_primitiveType, m_spacing, m_usePointMode, &attributes[numAttribsPerPrimitive*patchNdx+0], &attributes[numAttribsPerPrimitive*patchNdx+2]);
log << TestLog::Message << "Note: rendering " << numPrimitives << " patches; first patches have valid relevant outer levels, "
<< "but later patches have one or more invalid (i.e. less than or equal to 0.0) relevant outer levels" << TestLog::EndMessage;
{
const TFHandler tfHandler (m_context.getRenderContext(), numVerticesInDrawCall);
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 1, (int)attributes.size(), 0, &attributes[0]) };
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, outputPrimitiveTypeGL(m_primitiveType, m_usePointMode),
DE_LENGTH_OF_ARRAY(bindings), &bindings[0], (int)attributes.size());
const tcu::Surface pixels = getPixels(renderCtx, viewport);
log << TestLog::Image("RenderedImage", "Rendered image", pixels);
if ((int)tfResult.varying.size() != numVerticesInDrawCall)
{
log << TestLog::Message << "Failure: expected " << numVerticesInDrawCall << " vertices from transform feedback, got " << tfResult.varying.size() << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Wrong number of tessellation coordinates");
return STOP;
}
// Check that white pixels are found around every non-discarded
// patch, and that only black pixels are found after the last
// non-discarded patch.
{
int lastWhitePixelRow = 0;
int secondToLastWhitePixelRow = 0;
int lastWhitePixelColumnOnSecondToLastWhitePixelRow = 0;
for (int patchNdx = 0; patchNdx < numPrimitives; patchNdx++)
{
const float* const attr = &attributes[numAttribsPerPrimitive*patchNdx];
const bool validLevels = !isPatchDiscarded(m_primitiveType, &attr[2]);
if (validLevels)
{
// Not a discarded patch; check that at least one white pixel is found in its area.
const float* const scale = &attr[6];
const float* const offset = &attr[8];
const int x0 = (int)(( offset[0] + 1.0f)*0.5f*(float)pixels.getWidth()) - 1;
const int x1 = (int)((scale[0] + offset[0] + 1.0f)*0.5f*(float)pixels.getWidth()) + 1;
const int y0 = (int)(( offset[1] + 1.0f)*0.5f*(float)pixels.getHeight()) - 1;
const int y1 = (int)((scale[1] + offset[1] + 1.0f)*0.5f*(float)pixels.getHeight()) + 1;
const bool isMSAA = renderCtx.getRenderTarget().getNumSamples() > 1;
bool pixelOk = false;
if (y1 > lastWhitePixelRow)
{
secondToLastWhitePixelRow = lastWhitePixelRow;
lastWhitePixelRow = y1;
}
lastWhitePixelColumnOnSecondToLastWhitePixelRow = x1;
for (int y = y0; y <= y1 && !pixelOk; y++)
for (int x = x0; x <= x1 && !pixelOk; x++)
{
if (!de::inBounds(x, 0, pixels.getWidth()) || !de::inBounds(y, 0, pixels.getHeight()))
continue;
if (isMSAA)
{
if (pixels.getPixel(x, y) != tcu::RGBA::black())
pixelOk = true;
}
else
{
if (pixels.getPixel(x, y) == tcu::RGBA::white())
pixelOk = true;
}
}
if (!pixelOk)
{
log << TestLog::Message << "Failure: expected at least one " << (isMSAA ? "non-black" : "white") << " pixel in the rectangle "
<< "[x0=" << x0 << ", y0=" << y0 << ", x1=" << x1 << ", y1=" << y1 << "]" << TestLog::EndMessage
<< TestLog::Message << "Note: the rectangle approximately corresponds to the patch with these tessellation levels: "
<< tessellationLevelsString(&attr[0], &attr[1]) << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image verification failed");
return STOP;
}
}
else
{
// First discarded primitive patch; the remaining are guaranteed to be discarded ones as well.
for (int y = 0; y < pixels.getHeight(); y++)
for (int x = 0; x < pixels.getWidth(); x++)
{
if (y > lastWhitePixelRow || (y > secondToLastWhitePixelRow && x > lastWhitePixelColumnOnSecondToLastWhitePixelRow))
{
if (pixels.getPixel(x, y) != tcu::RGBA::black())
{
log << TestLog::Message << "Failure: expected all pixels to be black in the area "
<< (lastWhitePixelColumnOnSecondToLastWhitePixelRow < pixels.getWidth()-1
? string() + "y > " + de::toString(lastWhitePixelRow) + " || (y > " + de::toString(secondToLastWhitePixelRow)
+ " && x > " + de::toString(lastWhitePixelColumnOnSecondToLastWhitePixelRow) + ")"
: string() + "y > " + de::toString(lastWhitePixelRow))
<< " (they all correspond to patches that should be discarded)" << TestLog::EndMessage
<< TestLog::Message << "Note: pixel " << tcu::IVec2(x, y) << " isn't black" << TestLog::EndMessage;
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image verification failed");
return STOP;
}
}
}
break;
}
}
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
/*--------------------------------------------------------------------*//*!
* \brief Case testing user-defined IO between TCS and TES
*
* TCS outputs various values to TES, including aggregates. The outputs
* can be per-patch or per-vertex, and if per-vertex, they can also be in
* an IO block. Per-vertex input array size can be left implicit (i.e.
* inputArray[]) or explicit either by gl_MaxPatchVertices or an integer
* literal whose value is queried from GL.
*
* The values output are generated in TCS and verified in TES against
* similarly generated values. In case a verification of a value fails, the
* index of the invalid value is output with TF.
* As a sanity check, also the rendering result is verified (against pre-
* rendered reference).
*//*--------------------------------------------------------------------*/
class UserDefinedIOCase : public TestCase
{
public:
enum IOType
{
IO_TYPE_PER_PATCH = 0,
IO_TYPE_PER_PATCH_ARRAY,
IO_TYPE_PER_PATCH_BLOCK,
IO_TYPE_PER_PATCH_BLOCK_ARRAY,
IO_TYPE_PER_VERTEX,
IO_TYPE_PER_VERTEX_BLOCK,
IO_TYPE_LAST
};
enum VertexIOArraySize
{
VERTEX_IO_ARRAY_SIZE_IMPLICIT = 0,
VERTEX_IO_ARRAY_SIZE_EXPLICIT_SHADER_BUILTIN, //!< Use gl_MaxPatchVertices as size for per-vertex input array.
VERTEX_IO_ARRAY_SIZE_EXPLICIT_QUERY, //!< Query GL_MAX_PATCH_VERTICES, and use that as size for per-vertex input array.
VERTEX_IO_ARRAY_SIZE_LAST
};
enum TessControlOutArraySize
{
TESS_CONTROL_OUT_ARRAY_SIZE_IMPLICIT = 0,
TESS_CONTROL_OUT_ARRAY_SIZE_LAYOUT,
TESS_CONTROL_OUT_ARRAY_SIZE_QUERY,
TESS_CONTROL_OUT_ARRAY_SIZE_SHADER_BUILTIN
};
UserDefinedIOCase (Context& context, const char* name, const char* description, TessPrimitiveType primType, IOType ioType, VertexIOArraySize vertexIOArraySize, TessControlOutArraySize tessControlOutArraySize, const char* referenceImagePath)
: TestCase (context, name, description)
, m_primitiveType (primType)
, m_ioType (ioType)
, m_vertexIOArraySize (vertexIOArraySize)
, m_tessControlOutArraySize (tessControlOutArraySize)
, m_referenceImagePath (referenceImagePath)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
private:
typedef string (*BasicTypeVisitFunc)(const string& name, glu::DataType type, int indentationDepth); //!< See glslTraverseBasicTypes below.
class TopLevelObject
{
public:
virtual ~TopLevelObject (void) {}
virtual string name (void) const = 0;
virtual string declare (void) const = 0;
virtual string declareArray (const string& arraySizeExpr) const = 0;
virtual string glslTraverseBasicTypeArray (int numArrayElements, //!< If negative, traverse just array[gl_InvocationID], not all indices.
int indentationDepth,
BasicTypeVisitFunc) const = 0;
virtual string glslTraverseBasicType (int indentationDepth,
BasicTypeVisitFunc) const = 0;
virtual int numBasicSubobjectsInElementType (void) const = 0;
virtual string basicSubobjectAtIndex (int index, int arraySize) const = 0;
};
class Variable : public TopLevelObject
{
public:
Variable (const string& name_, const glu::VarType& type, bool isArray)
: m_name (name_)
, m_type (type)
, m_isArray (isArray)
{
DE_ASSERT(!type.isArrayType());
}
string name (void) const { return m_name; }
string declare (void) const;
string declareArray (const string& arraySizeExpr) const;
string glslTraverseBasicTypeArray (int numArrayElements, int indentationDepth, BasicTypeVisitFunc) const;
string glslTraverseBasicType (int indentationDepth, BasicTypeVisitFunc) const;
int numBasicSubobjectsInElementType (void) const;
string basicSubobjectAtIndex (int index, int arraySize) const;
private:
string m_name;
glu::VarType m_type; //!< If this Variable is an array element, m_type is the element type; otherwise just the variable type.
const bool m_isArray;
};
class IOBlock : public TopLevelObject
{
public:
struct Member
{
string name;
glu::VarType type;
Member (const string& n, const glu::VarType& t) : name(n), type(t) {}
};
IOBlock (const string& blockName, const string& interfaceName, const vector<Member>& members)
: m_blockName (blockName)
, m_interfaceName (interfaceName)
, m_members (members)
{
}
string name (void) const { return m_interfaceName; }
string declare (void) const;
string declareArray (const string& arraySizeExpr) const;
string glslTraverseBasicTypeArray (int numArrayElements, int indentationDepth, BasicTypeVisitFunc) const;
string glslTraverseBasicType (int indentationDepth, BasicTypeVisitFunc) const;
int numBasicSubobjectsInElementType (void) const;
string basicSubobjectAtIndex (int index, int arraySize) const;
private:
string m_blockName;
string m_interfaceName;
vector<Member> m_members;
};
static string glslTraverseBasicTypes (const string& rootName,
const glu::VarType& rootType,
int arrayNestingDepth,
int indentationDepth,
BasicTypeVisitFunc visit);
static string glslAssignBasicTypeObject (const string& name, glu::DataType, int indentationDepth);
static string glslCheckBasicTypeObject (const string& name, glu::DataType, int indentationDepth);
static int numBasicSubobjectsInElementType (const vector<SharedPtr<TopLevelObject> >&);
static string basicSubobjectAtIndex (int index, const vector<SharedPtr<TopLevelObject> >&, int topLevelArraySizes);
enum
{
RENDER_SIZE = 256
};
enum
{
NUM_OUTPUT_VERTICES = 5
};
enum
{
NUM_PER_PATCH_ARRAY_ELEMS = 3
};
enum
{
NUM_PER_PATCH_BLOCKS = 2
};
const TessPrimitiveType m_primitiveType;
const IOType m_ioType;
const VertexIOArraySize m_vertexIOArraySize;
const TessControlOutArraySize m_tessControlOutArraySize;
const string m_referenceImagePath;
vector<glu::StructType> m_structTypes;
vector<SharedPtr<TopLevelObject> > m_tcsOutputs;
vector<SharedPtr<TopLevelObject> > m_tesInputs;
SharedPtr<const glu::ShaderProgram> m_program;
};
/*--------------------------------------------------------------------*//*!
* \brief Generate GLSL code to traverse (possibly aggregate) object
*
* Generates a string that represents GLSL code that traverses the
* basic-type subobjects in a rootType-typed object named rootName. Arrays
* are traversed with loops and struct members are each traversed
* separately. The code for each basic-type subobject is generated with
* the function given as the 'visit' argument.
*//*--------------------------------------------------------------------*/
string UserDefinedIOCase::glslTraverseBasicTypes (const string& rootName,
const glu::VarType& rootType,
int arrayNestingDepth,
int indentationDepth,
BasicTypeVisitFunc visit)
{
if (rootType.isBasicType())
return visit(rootName, rootType.getBasicType(), indentationDepth);
else if (rootType.isArrayType())
{
const string indentation = string(indentationDepth, '\t');
const string loopIndexName = "i" + de::toString(arrayNestingDepth);
const string arrayLength = de::toString(rootType.getArraySize());
return indentation + "for (int " + loopIndexName + " = 0; " + loopIndexName + " < " + de::toString(rootType.getArraySize()) + "; " + loopIndexName + "++)\n" +
indentation + "{\n" +
glslTraverseBasicTypes(rootName + "[" + loopIndexName + "]", rootType.getElementType(), arrayNestingDepth+1, indentationDepth+1, visit) +
indentation + "}\n";
}
else if (rootType.isStructType())
{
const glu::StructType& structType = *rootType.getStructPtr();
const int numMembers = structType.getNumMembers();
string result;
for (int membNdx = 0; membNdx < numMembers; membNdx++)
{
const glu::StructMember& member = structType.getMember(membNdx);
result += glslTraverseBasicTypes(rootName + "." + member.getName(), member.getType(), arrayNestingDepth, indentationDepth, visit);
}
return result;
}
else
{
DE_ASSERT(false);
return DE_NULL;
}
}
string UserDefinedIOCase::Variable::declare (void) const
{
DE_ASSERT(!m_isArray);
return de::toString(glu::declare(m_type, m_name)) + ";\n";
}
string UserDefinedIOCase::Variable::declareArray (const string& sizeExpr) const
{
DE_ASSERT(m_isArray);
return de::toString(glu::declare(m_type, m_name)) + "[" + sizeExpr + "];\n";
}
string UserDefinedIOCase::IOBlock::declare (void) const
{
std::ostringstream buf;
buf << m_blockName << "\n"
<< "{\n";
for (int i = 0; i < (int)m_members.size(); i++)
buf << "\t" << glu::declare(m_members[i].type, m_members[i].name) << ";\n";
buf << "} " << m_interfaceName << ";\n";
return buf.str();
}
string UserDefinedIOCase::IOBlock::declareArray (const string& sizeExpr) const
{
std::ostringstream buf;
buf << m_blockName << "\n"
<< "{\n";
for (int i = 0; i < (int)m_members.size(); i++)
buf << "\t" << glu::declare(m_members[i].type, m_members[i].name) << ";\n";
buf << "} " << m_interfaceName << "[" << sizeExpr << "];\n";
return buf.str();
}
string UserDefinedIOCase::Variable::glslTraverseBasicTypeArray (int numArrayElements, int indentationDepth, BasicTypeVisitFunc visit) const
{
DE_ASSERT(m_isArray);
const bool traverseAsArray = numArrayElements >= 0;
const string traversedName = m_name + (!traverseAsArray ? "[gl_InvocationID]" : "");
const glu::VarType type = traverseAsArray ? glu::VarType(m_type, numArrayElements) : m_type;
return UserDefinedIOCase::glslTraverseBasicTypes(traversedName, type, 0, indentationDepth, visit);
}
string UserDefinedIOCase::Variable::glslTraverseBasicType (int indentationDepth, BasicTypeVisitFunc visit) const
{
DE_ASSERT(!m_isArray);
return UserDefinedIOCase::glslTraverseBasicTypes(m_name, m_type, 0, indentationDepth, visit);
}
string UserDefinedIOCase::IOBlock::glslTraverseBasicTypeArray (int numArrayElements, int indentationDepth, BasicTypeVisitFunc visit) const
{
if (numArrayElements >= 0)
{
const string indentation = string(indentationDepth, '\t');
string result = indentation + "for (int i0 = 0; i0 < " + de::toString(numArrayElements) + "; i0++)\n" +
indentation + "{\n";
for (int i = 0; i < (int)m_members.size(); i++)
result += UserDefinedIOCase::glslTraverseBasicTypes(m_interfaceName + "[i0]." + m_members[i].name, m_members[i].type, 1, indentationDepth+1, visit);
result += indentation + "}\n";
return result;
}
else
{
string result;
for (int i = 0; i < (int)m_members.size(); i++)
result += UserDefinedIOCase::glslTraverseBasicTypes(m_interfaceName + "[gl_InvocationID]." + m_members[i].name, m_members[i].type, 0, indentationDepth, visit);
return result;
}
}
string UserDefinedIOCase::IOBlock::glslTraverseBasicType (int indentationDepth, BasicTypeVisitFunc visit) const
{
string result;
for (int i = 0; i < (int)m_members.size(); i++)
result += UserDefinedIOCase::glslTraverseBasicTypes(m_interfaceName + "." + m_members[i].name, m_members[i].type, 0, indentationDepth, visit);
return result;
}
int UserDefinedIOCase::Variable::numBasicSubobjectsInElementType (void) const
{
return numBasicSubobjects(m_type);
}
int UserDefinedIOCase::IOBlock::numBasicSubobjectsInElementType (void) const
{
int result = 0;
for (int i = 0; i < (int)m_members.size(); i++)
result += numBasicSubobjects(m_members[i].type);
return result;
}
string UserDefinedIOCase::Variable::basicSubobjectAtIndex (int subobjectIndex, int arraySize) const
{
const glu::VarType type = m_isArray ? glu::VarType(m_type, arraySize) : m_type;
int currentIndex = 0;
for (glu::BasicTypeIterator basicIt = glu::BasicTypeIterator::begin(&type);
basicIt != glu::BasicTypeIterator::end(&type);
++basicIt)
{
if (currentIndex == subobjectIndex)
return m_name + de::toString(glu::TypeAccessFormat(type, basicIt.getPath()));
currentIndex++;
}
DE_ASSERT(false);
return DE_NULL;
}
string UserDefinedIOCase::IOBlock::basicSubobjectAtIndex (int subobjectIndex, int arraySize) const
{
int currentIndex = 0;
for (int arrayNdx = 0; arrayNdx < arraySize; arrayNdx++)
{
for (int memberNdx = 0; memberNdx < (int)m_members.size(); memberNdx++)
{
const glu::VarType& membType = m_members[memberNdx].type;
for (glu::BasicTypeIterator basicIt = glu::BasicTypeIterator::begin(&membType);
basicIt != glu::BasicTypeIterator::end(&membType);
++basicIt)
{
if (currentIndex == subobjectIndex)
return m_interfaceName + "[" + de::toString(arrayNdx) + "]." + m_members[memberNdx].name + de::toString(glu::TypeAccessFormat(membType, basicIt.getPath()));
currentIndex++;
}
}
}
DE_ASSERT(false);
return DE_NULL;
}
// Used as the 'visit' argument for glslTraverseBasicTypes.
string UserDefinedIOCase::glslAssignBasicTypeObject (const string& name, glu::DataType type, int indentationDepth)
{
const int scalarSize = glu::getDataTypeScalarSize(type);
const string indentation = string(indentationDepth, '\t');
string result;
result += indentation + name + " = ";
if (type != glu::TYPE_FLOAT)
result += string() + glu::getDataTypeName(type) + "(";
for (int i = 0; i < scalarSize; i++)
result += (i > 0 ? ", v+" + de::floatToString(0.8f*(float)i, 1)
: "v");
if (type != glu::TYPE_FLOAT)
result += ")";
result += ";\n" +
indentation + "v += 0.4;\n";
return result;
}
// Used as the 'visit' argument for glslTraverseBasicTypes.
string UserDefinedIOCase::glslCheckBasicTypeObject (const string& name, glu::DataType type, int indentationDepth)
{
const int scalarSize = glu::getDataTypeScalarSize(type);
const string indentation = string(indentationDepth, '\t');
string result;
result += indentation + "allOk = allOk && compare_" + glu::getDataTypeName(type) + "(" + name + ", ";
if (type != glu::TYPE_FLOAT)
result += string() + glu::getDataTypeName(type) + "(";
for (int i = 0; i < scalarSize; i++)
result += (i > 0 ? ", v+" + de::floatToString(0.8f*(float)i, 1)
: "v");
if (type != glu::TYPE_FLOAT)
result += ")";
result += ");\n" +
indentation + "v += 0.4;\n" +
indentation + "if (allOk) firstFailedInputIndex++;\n";
return result;
}
int UserDefinedIOCase::numBasicSubobjectsInElementType (const vector<SharedPtr<TopLevelObject> >& objects)
{
int result = 0;
for (int i = 0; i < (int)objects.size(); i++)
result += objects[i]->numBasicSubobjectsInElementType();
return result;
}
string UserDefinedIOCase::basicSubobjectAtIndex (int subobjectIndex, const vector<SharedPtr<TopLevelObject> >& objects, int topLevelArraySize)
{
int currentIndex = 0;
int objectIndex = 0;
for (; currentIndex < subobjectIndex; objectIndex++)
currentIndex += objects[objectIndex]->numBasicSubobjectsInElementType() * topLevelArraySize;
if (currentIndex > subobjectIndex)
{
objectIndex--;
currentIndex -= objects[objectIndex]->numBasicSubobjectsInElementType() * topLevelArraySize;
}
return objects[objectIndex]->basicSubobjectAtIndex(subobjectIndex - currentIndex, topLevelArraySize);
}
void UserDefinedIOCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
const bool isPerPatchIO = m_ioType == IO_TYPE_PER_PATCH ||
m_ioType == IO_TYPE_PER_PATCH_ARRAY ||
m_ioType == IO_TYPE_PER_PATCH_BLOCK ||
m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY;
const bool isExplicitVertexArraySize = m_vertexIOArraySize == VERTEX_IO_ARRAY_SIZE_EXPLICIT_SHADER_BUILTIN ||
m_vertexIOArraySize == VERTEX_IO_ARRAY_SIZE_EXPLICIT_QUERY;
const string vertexAttrArrayInputSize = m_vertexIOArraySize == VERTEX_IO_ARRAY_SIZE_IMPLICIT ? ""
: m_vertexIOArraySize == VERTEX_IO_ARRAY_SIZE_EXPLICIT_SHADER_BUILTIN ? "gl_MaxPatchVertices"
: m_vertexIOArraySize == VERTEX_IO_ARRAY_SIZE_EXPLICIT_QUERY ? de::toString(m_context.getContextInfo().getInt(GL_MAX_PATCH_VERTICES))
: DE_NULL;
const char* const maybePatch = isPerPatchIO ? "patch " : "";
const string outMaybePatch = string() + maybePatch + "out ";
const string inMaybePatch = string() + maybePatch + "in ";
const bool useBlock = m_ioType == IO_TYPE_PER_VERTEX_BLOCK ||
m_ioType == IO_TYPE_PER_PATCH_BLOCK ||
m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY;
string tcsDeclarations;
string tcsStatements;
string tesDeclarations;
string tesStatements;
{
m_structTypes.push_back(glu::StructType("S"));
const glu::VarType highpFloat (glu::TYPE_FLOAT, glu::PRECISION_HIGHP);
glu::StructType& structType = m_structTypes.back();
const glu::VarType structVarType (&structType);
bool usedStruct = false;
structType.addMember("x", glu::VarType(glu::TYPE_INT, glu::PRECISION_HIGHP));
structType.addMember("y", glu::VarType(glu::TYPE_FLOAT_VEC4, glu::PRECISION_HIGHP));
if (useBlock)
{
// It is illegal to have a structure containing an array as an output variable
structType.addMember("z", glu::VarType(highpFloat, 2));
}
if (useBlock)
{
const bool useLightweightBlock = (m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY); // use leaner block to make sure it is not larger than allowed (per-patch storage is very limited)
vector<IOBlock::Member> blockMembers;
if (!useLightweightBlock)
blockMembers.push_back(IOBlock::Member("blockS", structVarType));
blockMembers.push_back(IOBlock::Member("blockFa", glu::VarType(highpFloat, 3)));
blockMembers.push_back(IOBlock::Member("blockSa", glu::VarType(structVarType, 2)));
blockMembers.push_back(IOBlock::Member("blockF", highpFloat));
m_tcsOutputs.push_back (SharedPtr<TopLevelObject>(new IOBlock("TheBlock", "tcBlock", blockMembers)));
m_tesInputs.push_back (SharedPtr<TopLevelObject>(new IOBlock("TheBlock", "teBlock", blockMembers)));
usedStruct = true;
}
else
{
const Variable var0("in_te_s", structVarType, m_ioType != IO_TYPE_PER_PATCH);
const Variable var1("in_te_f", highpFloat, m_ioType != IO_TYPE_PER_PATCH);
if (m_ioType != IO_TYPE_PER_PATCH_ARRAY)
{
// Arrays of structures are disallowed, add struct cases only if not arrayed variable
m_tcsOutputs.push_back (SharedPtr<TopLevelObject>(new Variable(var0)));
m_tesInputs.push_back (SharedPtr<TopLevelObject>(new Variable(var0)));
usedStruct = true;
}
m_tcsOutputs.push_back (SharedPtr<TopLevelObject>(new Variable(var1)));
m_tesInputs.push_back (SharedPtr<TopLevelObject>(new Variable(var1)));
}
tcsDeclarations += "in " + Variable("in_tc_attr", highpFloat, true).declareArray(vertexAttrArrayInputSize);
if (usedStruct)
tcsDeclarations += de::toString(glu::declare(structType)) + ";\n";
tcsStatements += "\t{\n"
"\t\thighp float v = 1.3;\n";
for (int tcsOutputNdx = 0; tcsOutputNdx < (int)m_tcsOutputs.size(); tcsOutputNdx++)
{
const TopLevelObject& output = *m_tcsOutputs[tcsOutputNdx];
const int numElements = !isPerPatchIO ? -1 //!< \note -1 means indexing with gl_InstanceID
: m_ioType == IO_TYPE_PER_PATCH ? 1
: m_ioType == IO_TYPE_PER_PATCH_ARRAY ? NUM_PER_PATCH_ARRAY_ELEMS
: m_ioType == IO_TYPE_PER_PATCH_BLOCK ? 1
: m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY ? NUM_PER_PATCH_BLOCKS
: -2;
const bool isArray = (numElements != 1);
DE_ASSERT(numElements != -2);
if (isArray)
{
tcsDeclarations += outMaybePatch + output.declareArray(m_ioType == IO_TYPE_PER_PATCH_ARRAY ? de::toString(int(NUM_PER_PATCH_ARRAY_ELEMS))
: m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY ? de::toString(int(NUM_PER_PATCH_BLOCKS))
: m_tessControlOutArraySize == TESS_CONTROL_OUT_ARRAY_SIZE_LAYOUT ? de::toString(int(NUM_OUTPUT_VERTICES))
: m_tessControlOutArraySize == TESS_CONTROL_OUT_ARRAY_SIZE_QUERY ? de::toString(m_context.getContextInfo().getInt(GL_MAX_PATCH_VERTICES))
: m_tessControlOutArraySize == TESS_CONTROL_OUT_ARRAY_SIZE_SHADER_BUILTIN ? "gl_MaxPatchVertices"
: "");
}
else
tcsDeclarations += outMaybePatch + output.declare();
if (!isPerPatchIO)
tcsStatements += "\t\tv += float(gl_InvocationID)*" + de::floatToString(0.4f * (float)output.numBasicSubobjectsInElementType(), 1) + ";\n";
tcsStatements += "\n\t\t// Assign values to output " + output.name() + "\n";
if (isArray)
tcsStatements += output.glslTraverseBasicTypeArray(numElements, 2, glslAssignBasicTypeObject);
else
tcsStatements += output.glslTraverseBasicType(2, glslAssignBasicTypeObject);
if (!isPerPatchIO)
tcsStatements += "\t\tv += float(" + de::toString(int(NUM_OUTPUT_VERTICES)) + "-gl_InvocationID-1)*" + de::floatToString(0.4f * (float)output.numBasicSubobjectsInElementType(), 1) + ";\n";
}
tcsStatements += "\t}\n";
if (usedStruct)
tesDeclarations += de::toString(glu::declare(structType)) + ";\n";
tesStatements += "\tbool allOk = true;\n"
"\thighp uint firstFailedInputIndex = 0u;\n"
"\t{\n"
"\t\thighp float v = 1.3;\n";
for (int tesInputNdx = 0; tesInputNdx < (int)m_tesInputs.size(); tesInputNdx++)
{
const TopLevelObject& input = *m_tesInputs[tesInputNdx];
const int numElements = !isPerPatchIO ? (int)NUM_OUTPUT_VERTICES
: m_ioType == IO_TYPE_PER_PATCH ? 1
: m_ioType == IO_TYPE_PER_PATCH_BLOCK ? 1
: m_ioType == IO_TYPE_PER_PATCH_ARRAY ? NUM_PER_PATCH_ARRAY_ELEMS
: m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY ? NUM_PER_PATCH_BLOCKS
: -2;
const bool isArray = (numElements != 1);
DE_ASSERT(numElements != -2);
if (isArray)
tesDeclarations += inMaybePatch + input.declareArray(m_ioType == IO_TYPE_PER_PATCH_ARRAY ? de::toString(int(NUM_PER_PATCH_ARRAY_ELEMS))
: m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY ? de::toString(int(NUM_PER_PATCH_BLOCKS))
: isExplicitVertexArraySize ? de::toString(vertexAttrArrayInputSize)
: "");
else
tesDeclarations += inMaybePatch + input.declare();
tesStatements += "\n\t\t// Check values in input " + input.name() + "\n";
if (isArray)
tesStatements += input.glslTraverseBasicTypeArray(numElements, 2, glslCheckBasicTypeObject);
else
tesStatements += input.glslTraverseBasicType(2, glslCheckBasicTypeObject);
}
tesStatements += "\t}\n";
}
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp float in_v_attr;\n"
"out highp float in_tc_attr;\n"
"\n"
"void main (void)\n"
"{\n"
" in_tc_attr = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = " + de::toString(int(NUM_OUTPUT_VERTICES)) + ") out;\n"
"\n"
+ tcsDeclarations +
"\n"
"patch out highp vec2 in_te_positionScale;\n"
"patch out highp vec2 in_te_positionOffset;\n"
"\n"
"void main (void)\n"
"{\n"
+ tcsStatements +
"\n"
" in_te_positionScale = vec2(in_tc_attr[6], in_tc_attr[7]);\n"
" in_te_positionOffset = vec2(in_tc_attr[8], in_tc_attr[9]);\n"
"\n"
" gl_TessLevelInner[0] = in_tc_attr[0];\n"
" gl_TessLevelInner[1] = in_tc_attr[1];\n"
"\n"
" gl_TessLevelOuter[0] = in_tc_attr[2];\n"
" gl_TessLevelOuter[1] = in_tc_attr[3];\n"
" gl_TessLevelOuter[2] = in_tc_attr[4];\n"
" gl_TessLevelOuter[3] = in_tc_attr[5];\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(m_primitiveType) +
"\n"
+ tesDeclarations +
"\n"
"patch in highp vec2 in_te_positionScale;\n"
"patch in highp vec2 in_te_positionOffset;\n"
"\n"
"out highp vec4 in_f_color;\n"
"// Will contain the index of the first incorrect input,\n"
"// or the number of inputs if all are correct\n"
"flat out highp uint out_te_firstFailedInputIndex;\n"
"\n"
"bool compare_int (int a, int b) { return a == b; }\n"
"bool compare_float (float a, float b) { return abs(a - b) < 0.01f; }\n"
"bool compare_vec4 (vec4 a, vec4 b) { return all(lessThan(abs(a - b), vec4(0.01f))); }\n"
"\n"
"void main (void)\n"
"{\n"
+ tesStatements +
"\n"
" gl_Position = vec4(gl_TessCoord.xy*in_te_positionScale + in_te_positionOffset, 0.0, 1.0);\n"
" in_f_color = allOk ? vec4(0.0, 1.0, 0.0, 1.0)\n"
" : vec4(1.0, 0.0, 0.0, 1.0);\n"
" out_te_firstFailedInputIndex = firstFailedInputIndex;\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))
<< glu::TransformFeedbackVarying ("out_te_firstFailedInputIndex")
<< glu::TransformFeedbackMode (GL_INTERLEAVED_ATTRIBS)));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void UserDefinedIOCase::deinit (void)
{
m_program.clear();
}
UserDefinedIOCase::IterateResult UserDefinedIOCase::iterate (void)
{
typedef TransformFeedbackHandler<deUint32> TFHandler;
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
static const float attributes[6+2+2] = { /* inner */ 3.0f, 4.0f, /* outer */ 5.0f, 6.0f, 7.0f, 8.0f, /* pos. scale */ 1.2f, 1.3f, /* pos. offset */ -0.3f, -0.4f };
const deUint32 programGL = m_program->getProgram();
const int numVertices = referenceVertexCount(m_primitiveType, SPACINGMODE_EQUAL, false, &attributes[0], &attributes[2]);
const TFHandler tfHandler (renderCtx, numVertices);
tcu::ResultCollector result;
gl.useProgram(programGL);
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, DE_LENGTH_OF_ARRAY(attributes));
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.clear(GL_COLOR_BUFFER_BIT);
{
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 1, DE_LENGTH_OF_ARRAY(attributes), 0, &attributes[0]) };
const TFHandler::Result tfResult = tfHandler.renderAndGetPrimitives(programGL, outputPrimitiveTypeGL(m_primitiveType, false),
DE_LENGTH_OF_ARRAY(bindings), &bindings[0], DE_LENGTH_OF_ARRAY(attributes));
{
const tcu::Surface pixels = getPixels(renderCtx, viewport);
const tcu::TextureLevel reference = getPNG(m_testCtx.getArchive(), m_referenceImagePath.c_str());
const bool success = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", reference.getAccess(), pixels.getAccess(), 0.02f, tcu::COMPARE_LOG_RESULT);
if (!success)
result.fail("Image comparison failed");
}
if ((int)tfResult.varying.size() != numVertices)
{
log << TestLog::Message << "Failure: transform feedback returned " << tfResult.varying.size() << " vertices; expected " << numVertices << TestLog::EndMessage;
result.fail("Wrong number of vertices");
}
else
{
const int topLevelArraySize = (m_ioType == IO_TYPE_PER_PATCH ? 1
: m_ioType == IO_TYPE_PER_PATCH_ARRAY ? NUM_PER_PATCH_ARRAY_ELEMS
: m_ioType == IO_TYPE_PER_PATCH_BLOCK ? 1
: m_ioType == IO_TYPE_PER_PATCH_BLOCK_ARRAY ? NUM_PER_PATCH_BLOCKS
: (int)NUM_OUTPUT_VERTICES);
const int numTEInputs = numBasicSubobjectsInElementType(m_tesInputs) * topLevelArraySize;
for (int vertexNdx = 0; vertexNdx < (int)numVertices; vertexNdx++)
{
if (tfResult.varying[vertexNdx] > (deUint32)numTEInputs)
{
log << TestLog::Message << "Failure: out_te_firstFailedInputIndex has value " << tfResult.varying[vertexNdx]
<< ", should be in range [0, " << numTEInputs << "]" << TestLog::EndMessage;
result.fail("Invalid transform feedback output");
}
else if (tfResult.varying[vertexNdx] != (deUint32)numTEInputs)
{
log << TestLog::Message << "Failure: in tessellation evaluation shader, check for input "
<< basicSubobjectAtIndex(tfResult.varying[vertexNdx], m_tesInputs, topLevelArraySize) << " failed" << TestLog::EndMessage;
result.fail("Invalid input value in tessellation evaluation shader");
}
}
}
}
result.setTestContextResult(m_testCtx);
return STOP;
}
/*--------------------------------------------------------------------*//*!
* \brief Pass gl_Position between VS and TCS, or between TCS and TES.
*
* In TCS gl_Position is in the gl_out[] block and in TES in the gl_in[]
* block, and has no special semantics in those. Arbitrary vec4 data can
* thus be passed there.
*//*--------------------------------------------------------------------*/
class GLPositionCase : public TestCase
{
public:
enum CaseType
{
CASETYPE_VS_TO_TCS = 0,
CASETYPE_TCS_TO_TES,
CASETYPE_VS_TO_TCS_TO_TES,
CASETYPE_LAST
};
GLPositionCase (Context& context, const char* name, const char* description, CaseType caseType, const char* referenceImagePath)
: TestCase (context, name, description)
, m_caseType (caseType)
, m_referenceImagePath (referenceImagePath)
{
}
void init (void);
void deinit (void);
IterateResult iterate (void);
static const char* getCaseTypeName (CaseType type);
private:
static const int RENDER_SIZE = 256;
const CaseType m_caseType;
const string m_referenceImagePath;
SharedPtr<const glu::ShaderProgram> m_program;
};
const char* GLPositionCase::getCaseTypeName (CaseType type)
{
switch (type)
{
case CASETYPE_VS_TO_TCS: return "gl_position_vs_to_tcs";
case CASETYPE_TCS_TO_TES: return "gl_position_tcs_to_tes";
case CASETYPE_VS_TO_TCS_TO_TES: return "gl_position_vs_to_tcs_to_tes";
default:
DE_ASSERT(false); return DE_NULL;
}
}
void GLPositionCase::init (void)
{
checkTessellationSupport(m_context);
checkRenderTargetSize(m_context.getRenderTarget(), RENDER_SIZE);
const bool vsToTCS = m_caseType == CASETYPE_VS_TO_TCS || m_caseType == CASETYPE_VS_TO_TCS_TO_TES;
const bool tcsToTES = m_caseType == CASETYPE_TCS_TO_TES || m_caseType == CASETYPE_VS_TO_TCS_TO_TES;
const string tesIn0 = tcsToTES ? "gl_in[0].gl_Position" : "in_te_attr[0]";
const string tesIn1 = tcsToTES ? "gl_in[1].gl_Position" : "in_te_attr[1]";
const string tesIn2 = tcsToTES ? "gl_in[2].gl_Position" : "in_te_attr[2]";
std::string vertexShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"in highp vec4 in_v_attr;\n"
+ string(!vsToTCS ? "out highp vec4 in_tc_attr;\n" : "") +
"\n"
"void main (void)\n"
"{\n"
" " + (vsToTCS ? "gl_Position" : "in_tc_attr") + " = in_v_attr;\n"
"}\n");
std::string tessellationControlTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
"layout (vertices = 3) out;\n"
"\n"
+ string(!vsToTCS ? "in highp vec4 in_tc_attr[];\n" : "") +
"\n"
+ (!tcsToTES ? "out highp vec4 in_te_attr[];\n" : "") +
"\n"
"void main (void)\n"
"{\n"
" " + (tcsToTES ? "gl_out[gl_InvocationID].gl_Position" : "in_te_attr[gl_InvocationID]") + " = "
+ (vsToTCS ? "gl_in[gl_InvocationID].gl_Position" : "in_tc_attr[gl_InvocationID]") + ";\n"
"\n"
" gl_TessLevelInner[0] = 2.0;\n"
" gl_TessLevelInner[1] = 3.0;\n"
"\n"
" gl_TessLevelOuter[0] = 4.0;\n"
" gl_TessLevelOuter[1] = 5.0;\n"
" gl_TessLevelOuter[2] = 6.0;\n"
" gl_TessLevelOuter[3] = 7.0;\n"
"}\n");
std::string tessellationEvaluationTemplate ("${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"\n"
+ getTessellationEvaluationInLayoutString(TESSPRIMITIVETYPE_TRIANGLES) +
"\n"
+ (!tcsToTES ? "in highp vec4 in_te_attr[];\n" : "") +
"\n"
"out highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" highp vec2 xy = gl_TessCoord.x * " + tesIn0 + ".xy\n"
" + gl_TessCoord.y * " + tesIn1 + ".xy\n"
" + gl_TessCoord.z * " + tesIn2 + ".xy;\n"
" gl_Position = vec4(xy, 0.0, 1.0);\n"
" in_f_color = vec4(" + tesIn0 + ".z + " + tesIn1 + ".w,\n"
" " + tesIn2 + ".z + " + tesIn0 + ".w,\n"
" " + tesIn1 + ".z + " + tesIn2 + ".w,\n"
" 1.0);\n"
"}\n");
std::string fragmentShaderTemplate ("${GLSL_VERSION_DECL}\n"
"\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"\n"
"in highp vec4 in_f_color;\n"
"\n"
"void main (void)\n"
"{\n"
" o_color = in_f_color;\n"
"}\n");
m_program = SharedPtr<const ShaderProgram>(new ShaderProgram(m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource (specializeShader(m_context, vertexShaderTemplate.c_str()))
<< glu::TessellationControlSource (specializeShader(m_context, tessellationControlTemplate.c_str()))
<< glu::TessellationEvaluationSource (specializeShader(m_context, tessellationEvaluationTemplate.c_str()))
<< glu::FragmentSource (specializeShader(m_context, fragmentShaderTemplate.c_str()))));
m_testCtx.getLog() << *m_program;
if (!m_program->isOk())
TCU_FAIL("Program compilation failed");
}
void GLPositionCase::deinit (void)
{
m_program.clear();
}
GLPositionCase::IterateResult GLPositionCase::iterate (void)
{
TestLog& log = m_testCtx.getLog();
const RenderContext& renderCtx = m_context.getRenderContext();
const RandomViewport viewport (renderCtx.getRenderTarget(), RENDER_SIZE, RENDER_SIZE, deStringHash(getName()));
const glw::Functions& gl = renderCtx.getFunctions();
const deUint32 programGL = m_program->getProgram();
static const float attributes[3*4] =
{
-0.8f, -0.7f, 0.1f, 0.7f,
-0.5f, 0.4f, 0.2f, 0.5f,
0.3f, 0.2f, 0.3f, 0.45f
};
gl.useProgram(programGL);
setViewport(gl, viewport);
gl.patchParameteri(GL_PATCH_VERTICES, 3);
gl.clearColor(0.0f, 0.0f, 0.0f, 1.0f);
gl.clear(GL_COLOR_BUFFER_BIT);
log << TestLog::Message << "Note: input data for in_v_attr:\n" << arrayStr(attributes, 4) << TestLog::EndMessage;
{
const glu::VertexArrayBinding bindings[] = { glu::va::Float("in_v_attr", 4, 3, 0, &attributes[0]) };
glu::draw(renderCtx, programGL, DE_LENGTH_OF_ARRAY(bindings), &bindings[0], glu::pr::Patches(3));
{
const tcu::Surface pixels = getPixels(renderCtx, viewport);
const tcu::TextureLevel reference = getPNG(m_testCtx.getArchive(), m_referenceImagePath.c_str());
const bool success = tcu::fuzzyCompare(log, "ImageComparison", "Image Comparison", reference.getAccess(), pixels.getAccess(), 0.02f, tcu::COMPARE_LOG_RESULT);
if (!success)
{
m_testCtx.setTestResult(QP_TEST_RESULT_FAIL, "Image comparison failed");
return STOP;
}
}
}
m_testCtx.setTestResult(QP_TEST_RESULT_PASS, "Pass");
return STOP;
}
class LimitQueryCase : public TestCase
{
public:
LimitQueryCase (Context& context, const char* name, const char* desc, glw::GLenum target, int minValue);
private:
IterateResult iterate (void);
const glw::GLenum m_target;
const int m_minValue;
};
LimitQueryCase::LimitQueryCase (Context& context, const char* name, const char* desc, glw::GLenum target, int minValue)
: TestCase (context, name, desc)
, m_target (target)
, m_minValue (minValue)
{
}
LimitQueryCase::IterateResult LimitQueryCase::iterate (void)
{
checkTessellationSupport(m_context);
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
gl.enableLogging(true);
verifyStateIntegerMin(result, gl, m_target, m_minValue, QUERY_INTEGER);
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Types", "Alternative queries");
verifyStateIntegerMin(result, gl, m_target, m_minValue, QUERY_BOOLEAN);
verifyStateIntegerMin(result, gl, m_target, m_minValue, QUERY_INTEGER64);
verifyStateIntegerMin(result, gl, m_target, m_minValue, QUERY_FLOAT);
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class CombinedUniformLimitCase : public TestCase
{
public:
CombinedUniformLimitCase (Context& context, const char* name, const char* desc, glw::GLenum combined, glw::GLenum numBlocks, glw::GLenum defaultComponents);
private:
IterateResult iterate (void);
const glw::GLenum m_combined;
const glw::GLenum m_numBlocks;
const glw::GLenum m_defaultComponents;
};
CombinedUniformLimitCase::CombinedUniformLimitCase (Context& context, const char* name, const char* desc, glw::GLenum combined, glw::GLenum numBlocks, glw::GLenum defaultComponents)
: TestCase (context, name, desc)
, m_combined (combined)
, m_numBlocks (numBlocks)
, m_defaultComponents (defaultComponents)
{
}
CombinedUniformLimitCase::IterateResult CombinedUniformLimitCase::iterate (void)
{
checkTessellationSupport(m_context);
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
gl.enableLogging(true);
m_testCtx.getLog() << tcu::TestLog::Message
<< "The minimum value of " << glu::getGettableStateStr(m_combined)
<< " is " << glu::getGettableStateStr(m_numBlocks)
<< " x MAX_UNIFORM_BLOCK_SIZE / 4 + "
<< glu::getGettableStateStr(m_defaultComponents)
<< tcu::TestLog::EndMessage;
StateQueryMemoryWriteGuard<glw::GLint> maxUniformBlocks;
gl.glGetIntegerv(m_numBlocks, &maxUniformBlocks);
GLS_COLLECT_GL_ERROR(result, gl.glGetError(), "glGetIntegerv");
StateQueryMemoryWriteGuard<glw::GLint> maxUniformBlockSize;
gl.glGetIntegerv(GL_MAX_UNIFORM_BLOCK_SIZE, &maxUniformBlockSize);
GLS_COLLECT_GL_ERROR(result, gl.glGetError(), "glGetIntegerv");
StateQueryMemoryWriteGuard<glw::GLint> maxUniformComponents;
gl.glGetIntegerv(m_defaultComponents, &maxUniformComponents);
GLS_COLLECT_GL_ERROR(result, gl.glGetError(), "glGetIntegerv");
if (maxUniformBlocks.verifyValidity(result) && maxUniformBlockSize.verifyValidity(result) && maxUniformComponents.verifyValidity(result))
{
const int limit = ((int)maxUniformBlocks) * ((int)maxUniformBlockSize) / 4 + (int)maxUniformComponents;
verifyStateIntegerMin(result, gl, m_combined, limit, QUERY_INTEGER);
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Types", "Alternative queries");
verifyStateIntegerMin(result, gl, m_combined, limit, QUERY_BOOLEAN);
verifyStateIntegerMin(result, gl, m_combined, limit, QUERY_INTEGER64);
verifyStateIntegerMin(result, gl, m_combined, limit, QUERY_FLOAT);
}
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class PatchVerticesStateCase : public TestCase
{
public:
PatchVerticesStateCase (Context& context, const char* name, const char* desc);
private:
IterateResult iterate (void);
};
PatchVerticesStateCase::PatchVerticesStateCase (Context& context, const char* name, const char* desc)
: TestCase(context, name, desc)
{
}
PatchVerticesStateCase::IterateResult PatchVerticesStateCase::iterate (void)
{
checkTessellationSupport(m_context);
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
gl.enableLogging(true);
// initial
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "initial", "Initial value");
verifyStateInteger(result, gl, GL_PATCH_VERTICES, 3, QUERY_INTEGER);
}
// bind
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "set", "After set");
gl.glPatchParameteri(GL_PATCH_VERTICES, 22);
GLS_COLLECT_GL_ERROR(result, gl.glGetError(), "glPatchParameteri");
verifyStateInteger(result, gl, GL_PATCH_VERTICES, 22, QUERY_INTEGER);
{
const tcu::ScopedLogSection subsection(m_testCtx.getLog(), "Types", "Alternative queries");
verifyStateIntegerMin(result, gl, GL_PATCH_VERTICES, 22, QUERY_BOOLEAN);
verifyStateIntegerMin(result, gl, GL_PATCH_VERTICES, 22, QUERY_INTEGER64);
verifyStateIntegerMin(result, gl, GL_PATCH_VERTICES, 22, QUERY_FLOAT);
}
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class PrimitiveRestartForPatchesSupportedCase : public TestCase
{
public:
PrimitiveRestartForPatchesSupportedCase (Context& context, const char* name, const char* desc);
private:
IterateResult iterate (void);
};
PrimitiveRestartForPatchesSupportedCase::PrimitiveRestartForPatchesSupportedCase (Context& context, const char* name, const char* desc)
: TestCase(context, name, desc)
{
}
PrimitiveRestartForPatchesSupportedCase::IterateResult PrimitiveRestartForPatchesSupportedCase::iterate (void)
{
checkTessellationSupport(m_context);
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
QueriedState state;
gl.enableLogging(true);
queryState(result, gl, QUERY_BOOLEAN, GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED, state);
if (!state.isUndefined())
{
const tcu::ScopedLogSection subsection(m_testCtx.getLog(), "Types", "Alternative types");
verifyStateBoolean(result, gl, GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED, state.getBoolAccess(), QUERY_INTEGER);
verifyStateBoolean(result, gl, GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED, state.getBoolAccess(), QUERY_INTEGER64);
verifyStateBoolean(result, gl, GL_PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED, state.getBoolAccess(), QUERY_FLOAT);
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class TessProgramQueryCase : public TestCase
{
public:
TessProgramQueryCase (Context& context, const char* name, const char* desc);
std::string getVertexSource (void) const;
std::string getFragmentSource (void) const;
std::string getTessCtrlSource (const char* globalLayouts) const;
std::string getTessEvalSource (const char* globalLayouts) const;
};
TessProgramQueryCase::TessProgramQueryCase (Context& context, const char* name, const char* desc)
: TestCase(context, name, desc)
{
}
std::string TessProgramQueryCase::getVertexSource (void) const
{
return "${GLSL_VERSION_DECL}\n"
"void main (void)\n"
"{\n"
" gl_Position = vec4(float(gl_VertexID), float(gl_VertexID / 2), 0.0, 1.0);\n"
"}\n";
}
std::string TessProgramQueryCase::getFragmentSource (void) const
{
return "${GLSL_VERSION_DECL}\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"void main (void)\n"
"{\n"
" o_color = vec4(0.0, 1.0, 0.0, 1.0);\n"
"}\n";
}
std::string TessProgramQueryCase::getTessCtrlSource (const char* globalLayouts) const
{
return "${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
+ std::string(globalLayouts) + ";\n"
"void main (void)\n"
"{\n"
" gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;\n"
" gl_TessLevelInner[0] = 2.8;\n"
" gl_TessLevelInner[1] = 2.8;\n"
" gl_TessLevelOuter[0] = 2.8;\n"
" gl_TessLevelOuter[1] = 2.8;\n"
" gl_TessLevelOuter[2] = 2.8;\n"
" gl_TessLevelOuter[3] = 2.8;\n"
"}\n";
}
std::string TessProgramQueryCase::getTessEvalSource (const char* globalLayouts) const
{
return "${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
+ std::string(globalLayouts) + ";\n"
"void main (void)\n"
"{\n"
" gl_Position = gl_TessCoord.x * gl_in[0].gl_Position\n"
" + gl_TessCoord.y * gl_in[1].gl_Position\n"
" + gl_TessCoord.y * gl_in[2].gl_Position\n"
" + gl_TessCoord.z * gl_in[3].gl_Position;\n"
"}\n";
}
class TessControlOutputVerticesCase : public TessProgramQueryCase
{
public:
TessControlOutputVerticesCase (Context& context, const char* name, const char* desc);
private:
IterateResult iterate (void);
};
TessControlOutputVerticesCase::TessControlOutputVerticesCase (Context& context, const char* name, const char* desc)
: TessProgramQueryCase(context, name, desc)
{
}
TessControlOutputVerticesCase::IterateResult TessControlOutputVerticesCase::iterate (void)
{
checkTessellationSupport(m_context);
glu::ShaderProgram program (m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource(specializeShader(m_context, getVertexSource().c_str()))
<< glu::FragmentSource(specializeShader(m_context, getFragmentSource().c_str()))
<< glu::TessellationControlSource(specializeShader(m_context, getTessCtrlSource("layout(vertices=4) out").c_str()))
<< glu::TessellationEvaluationSource(specializeShader(m_context, getTessEvalSource("layout(triangles) in").c_str())));
m_testCtx.getLog() << program;
if (!program.isOk())
throw tcu::TestError("failed to build program");
{
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
gl.enableLogging(true);
verifyStateProgramInteger(result, gl, program.getProgram(), GL_TESS_CONTROL_OUTPUT_VERTICES, 4, QUERY_PROGRAM_INTEGER);
result.setTestContextResult(m_testCtx);
}
return STOP;
}
class TessGenModeQueryCase : public TessProgramQueryCase
{
public:
TessGenModeQueryCase (Context& context, const char* name, const char* desc);
private:
IterateResult iterate (void);
};
TessGenModeQueryCase::TessGenModeQueryCase (Context& context, const char* name, const char* desc)
: TessProgramQueryCase(context, name, desc)
{
}
TessGenModeQueryCase::IterateResult TessGenModeQueryCase::iterate (void)
{
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
static const struct
{
const char* description;
const char* layout;
glw::GLenum mode;
} s_modes[] =
{
{ "Triangles", "layout(triangles) in", GL_TRIANGLES },
{ "Isolines", "layout(isolines) in", GL_ISOLINES },
{ "Quads", "layout(quads) in", GL_QUADS },
};
checkTessellationSupport(m_context);
gl.enableLogging(true);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(s_modes); ++ndx)
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Type", s_modes[ndx].description);
glu::ShaderProgram program (m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource(specializeShader(m_context, getVertexSource().c_str()))
<< glu::FragmentSource(specializeShader(m_context, getFragmentSource().c_str()))
<< glu::TessellationControlSource(specializeShader(m_context, getTessCtrlSource("layout(vertices=6) out").c_str()))
<< glu::TessellationEvaluationSource(specializeShader(m_context, getTessEvalSource(s_modes[ndx].layout).c_str())));
m_testCtx.getLog() << program;
if (!program.isOk())
result.fail("failed to build program");
else
verifyStateProgramInteger(result, gl, program.getProgram(), GL_TESS_GEN_MODE, s_modes[ndx].mode, QUERY_PROGRAM_INTEGER);
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class TessGenSpacingQueryCase : public TessProgramQueryCase
{
public:
TessGenSpacingQueryCase (Context& context, const char* name, const char* desc);
private:
IterateResult iterate (void);
};
TessGenSpacingQueryCase::TessGenSpacingQueryCase (Context& context, const char* name, const char* desc)
: TessProgramQueryCase(context, name, desc)
{
}
TessGenSpacingQueryCase::IterateResult TessGenSpacingQueryCase::iterate (void)
{
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
static const struct
{
const char* description;
const char* layout;
glw::GLenum spacing;
} s_modes[] =
{
{ "Default spacing", "layout(triangles) in", GL_EQUAL },
{ "Equal spacing", "layout(triangles, equal_spacing) in", GL_EQUAL },
{ "Fractional even spacing", "layout(triangles, fractional_even_spacing) in", GL_FRACTIONAL_EVEN },
{ "Fractional odd spacing", "layout(triangles, fractional_odd_spacing) in", GL_FRACTIONAL_ODD },
};
checkTessellationSupport(m_context);
gl.enableLogging(true);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(s_modes); ++ndx)
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Type", s_modes[ndx].description);
glu::ShaderProgram program (m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource(specializeShader(m_context, getVertexSource().c_str()))
<< glu::FragmentSource(specializeShader(m_context, getFragmentSource().c_str()))
<< glu::TessellationControlSource(specializeShader(m_context, getTessCtrlSource("layout(vertices=6) out").c_str()))
<< glu::TessellationEvaluationSource(specializeShader(m_context, getTessEvalSource(s_modes[ndx].layout).c_str())));
m_testCtx.getLog() << program;
if (!program.isOk())
result.fail("failed to build program");
else
verifyStateProgramInteger(result, gl, program.getProgram(), GL_TESS_GEN_SPACING, s_modes[ndx].spacing, QUERY_PROGRAM_INTEGER);
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class TessGenVertexOrderQueryCase : public TessProgramQueryCase
{
public:
TessGenVertexOrderQueryCase (Context& context, const char* name, const char* desc);
private:
IterateResult iterate (void);
};
TessGenVertexOrderQueryCase::TessGenVertexOrderQueryCase (Context& context, const char* name, const char* desc)
: TessProgramQueryCase(context, name, desc)
{
}
TessGenVertexOrderQueryCase::IterateResult TessGenVertexOrderQueryCase::iterate (void)
{
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
static const struct
{
const char* description;
const char* layout;
glw::GLenum order;
} s_modes[] =
{
{ "Default order", "layout(triangles) in", GL_CCW },
{ "CW order", "layout(triangles, cw) in", GL_CW },
{ "CCW order", "layout(triangles, ccw) in", GL_CCW },
};
checkTessellationSupport(m_context);
gl.enableLogging(true);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(s_modes); ++ndx)
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Type", s_modes[ndx].description);
glu::ShaderProgram program (m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource(specializeShader(m_context, getVertexSource().c_str()))
<< glu::FragmentSource(specializeShader(m_context, getFragmentSource().c_str()))
<< glu::TessellationControlSource(specializeShader(m_context, getTessCtrlSource("layout(vertices=6) out").c_str()))
<< glu::TessellationEvaluationSource(specializeShader(m_context, getTessEvalSource(s_modes[ndx].layout).c_str())));
m_testCtx.getLog() << program;
if (!program.isOk())
result.fail("failed to build program");
else
verifyStateProgramInteger(result, gl, program.getProgram(), GL_TESS_GEN_VERTEX_ORDER, s_modes[ndx].order, QUERY_PROGRAM_INTEGER);
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class TessGenPointModeQueryCase : public TessProgramQueryCase
{
public:
TessGenPointModeQueryCase (Context& context, const char* name, const char* desc);
private:
IterateResult iterate (void);
};
TessGenPointModeQueryCase::TessGenPointModeQueryCase (Context& context, const char* name, const char* desc)
: TessProgramQueryCase(context, name, desc)
{
}
TessGenPointModeQueryCase::IterateResult TessGenPointModeQueryCase::iterate (void)
{
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
static const struct
{
const char* description;
const char* layout;
glw::GLenum mode;
} s_modes[] =
{
{ "Default mode", "layout(triangles) in", GL_FALSE },
{ "Point mode", "layout(triangles, point_mode) in", GL_TRUE },
};
checkTessellationSupport(m_context);
gl.enableLogging(true);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(s_modes); ++ndx)
{
const tcu::ScopedLogSection section(m_testCtx.getLog(), "Type", s_modes[ndx].description);
glu::ShaderProgram program (m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource(specializeShader(m_context, getVertexSource().c_str()))
<< glu::FragmentSource(specializeShader(m_context, getFragmentSource().c_str()))
<< glu::TessellationControlSource(specializeShader(m_context, getTessCtrlSource("layout(vertices=6) out").c_str()))
<< glu::TessellationEvaluationSource(specializeShader(m_context, getTessEvalSource(s_modes[ndx].layout).c_str())));
m_testCtx.getLog() << program;
if (!program.isOk())
result.fail("failed to build program");
else
verifyStateProgramInteger(result, gl, program.getProgram(), GL_TESS_GEN_POINT_MODE, s_modes[ndx].mode, QUERY_PROGRAM_INTEGER);
}
result.setTestContextResult(m_testCtx);
return STOP;
}
class ReferencedByTessellationQueryCase : public TestCase
{
public:
ReferencedByTessellationQueryCase (Context& context, const char* name, const char* desc, bool isCtrlCase);
private:
void init (void);
IterateResult iterate (void);
std::string getVertexSource (void) const;
std::string getFragmentSource (void) const;
std::string getTessCtrlSource (void) const;
std::string getTessEvalSource (void) const;
const bool m_isCtrlCase;
};
ReferencedByTessellationQueryCase::ReferencedByTessellationQueryCase (Context& context, const char* name, const char* desc, bool isCtrlCase)
: TestCase (context, name, desc)
, m_isCtrlCase (isCtrlCase)
{
}
void ReferencedByTessellationQueryCase::init (void)
{
checkTessellationSupport(m_context);
}
ReferencedByTessellationQueryCase::IterateResult ReferencedByTessellationQueryCase::iterate (void)
{
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
glu::ShaderProgram program (m_context.getRenderContext(), glu::ProgramSources()
<< glu::VertexSource(specializeShader(m_context, getVertexSource().c_str()))
<< glu::FragmentSource(specializeShader(m_context, getFragmentSource().c_str()))
<< glu::TessellationControlSource(specializeShader(m_context, getTessCtrlSource().c_str()))
<< glu::TessellationEvaluationSource(specializeShader(m_context, getTessEvalSource().c_str())));
gl.enableLogging(true);
m_testCtx.getLog() << program;
if (!program.isOk())
result.fail("failed to build program");
else
{
const deUint32 props[1] = { (deUint32)((m_isCtrlCase) ? (GL_REFERENCED_BY_TESS_CONTROL_SHADER) : (GL_REFERENCED_BY_TESS_EVALUATION_SHADER)) };
{
const tcu::ScopedLogSection section (m_testCtx.getLog(), "UnreferencedUniform", "Unreferenced uniform u_unreferenced");
deUint32 resourcePos;
glw::GLsizei length = 0;
glw::GLint referenced = 0;
resourcePos = gl.glGetProgramResourceIndex(program.getProgram(), GL_UNIFORM, "u_unreferenced");
m_testCtx.getLog() << tcu::TestLog::Message << "u_unreferenced resource index: " << resourcePos << tcu::TestLog::EndMessage;
if (resourcePos == GL_INVALID_INDEX)
result.fail("resourcePos was GL_INVALID_INDEX");
else
{
gl.glGetProgramResourceiv(program.getProgram(), GL_UNIFORM, resourcePos, 1, props, 1, &length, &referenced);
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Query " << glu::getProgramResourcePropertyStr(props[0])
<< ", got " << length << " value(s), value[0] = " << glu::getBooleanStr(referenced)
<< tcu::TestLog::EndMessage;
GLS_COLLECT_GL_ERROR(result, gl.glGetError(), "query resource");
if (length == 0 || referenced != GL_FALSE)
result.fail("expected GL_FALSE");
}
}
{
const tcu::ScopedLogSection section (m_testCtx.getLog(), "ReferencedUniform", "Referenced uniform u_referenced");
deUint32 resourcePos;
glw::GLsizei length = 0;
glw::GLint referenced = 0;
resourcePos = gl.glGetProgramResourceIndex(program.getProgram(), GL_UNIFORM, "u_referenced");
m_testCtx.getLog() << tcu::TestLog::Message << "u_referenced resource index: " << resourcePos << tcu::TestLog::EndMessage;
if (resourcePos == GL_INVALID_INDEX)
result.fail("resourcePos was GL_INVALID_INDEX");
else
{
gl.glGetProgramResourceiv(program.getProgram(), GL_UNIFORM, resourcePos, 1, props, 1, &length, &referenced);
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Query " << glu::getProgramResourcePropertyStr(props[0])
<< ", got " << length << " value(s), value[0] = " << glu::getBooleanStr(referenced)
<< tcu::TestLog::EndMessage;
GLU_EXPECT_NO_ERROR(gl.glGetError(), "query resource");
if (length == 0 || referenced != GL_TRUE)
result.fail("expected GL_TRUE");
}
}
}
result.setTestContextResult(m_testCtx);
return STOP;
}
std::string ReferencedByTessellationQueryCase::getVertexSource (void) const
{
return "${GLSL_VERSION_DECL}\n"
"void main (void)\n"
"{\n"
" gl_Position = vec4(float(gl_VertexID), float(gl_VertexID / 2), 0.0, 1.0);\n"
"}\n";
}
std::string ReferencedByTessellationQueryCase::getFragmentSource (void) const
{
return "${GLSL_VERSION_DECL}\n"
"layout (location = 0) out mediump vec4 o_color;\n"
"void main (void)\n"
"{\n"
" o_color = vec4(0.0, 1.0, 0.0, 1.0);\n"
"}\n";
}
std::string ReferencedByTessellationQueryCase::getTessCtrlSource (void) const
{
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"layout(vertices = 3) out;\n"
"uniform highp vec4 " << ((m_isCtrlCase) ? ("u_referenced") : ("u_unreferenced")) << ";\n"
"void main (void)\n"
"{\n"
" vec4 offset = " << ((m_isCtrlCase) ? ("u_referenced") : ("u_unreferenced")) << ";\n"
" gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position + offset;\n"
" gl_TessLevelInner[0] = 2.8;\n"
" gl_TessLevelInner[1] = 2.8;\n"
" gl_TessLevelOuter[0] = 2.8;\n"
" gl_TessLevelOuter[1] = 2.8;\n"
" gl_TessLevelOuter[2] = 2.8;\n"
" gl_TessLevelOuter[3] = 2.8;\n"
"}\n";
return buf.str();
}
std::string ReferencedByTessellationQueryCase::getTessEvalSource (void) const
{
std::ostringstream buf;
buf << "${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"layout(triangles) in;\n"
"uniform highp vec4 " << ((m_isCtrlCase) ? ("u_unreferenced") : ("u_referenced")) << ";\n"
"void main (void)\n"
"{\n"
" vec4 offset = " << ((m_isCtrlCase) ? ("u_unreferenced") : ("u_referenced")) << ";\n"
" gl_Position = gl_TessCoord.x * gl_in[0].gl_Position\n"
" + gl_TessCoord.y * gl_in[1].gl_Position\n"
" + gl_TessCoord.z * gl_in[2].gl_Position\n"
" + offset;\n"
"}\n";
return buf.str();
}
class IsPerPatchQueryCase : public TestCase
{
public:
IsPerPatchQueryCase (Context& context, const char* name, const char* desc);
private:
void init (void);
IterateResult iterate (void);
};
IsPerPatchQueryCase::IsPerPatchQueryCase (Context& context, const char* name, const char* desc)
: TestCase(context, name, desc)
{
}
void IsPerPatchQueryCase::init (void)
{
checkTessellationSupport(m_context);
}
IsPerPatchQueryCase::IterateResult IsPerPatchQueryCase::iterate (void)
{
static const char* const s_controlSource = "${GLSL_VERSION_DECL}\n"
"${TESSELLATION_SHADER_REQUIRE}\n"
"layout(vertices = 3) out;\n"
"patch out highp vec4 v_perPatch;\n"
"out highp vec4 v_perVertex[];\n"
"void main (void)\n"
"{\n"
" gl_out[gl_InvocationID].gl_Position = gl_in[gl_InvocationID].gl_Position;\n"
" v_perPatch = gl_in[0].gl_Position;\n"
" v_perVertex[gl_InvocationID] = -gl_in[gl_InvocationID].gl_Position;\n"
" gl_TessLevelInner[0] = 2.8;\n"
" gl_TessLevelInner[1] = 2.8;\n"
" gl_TessLevelOuter[0] = 2.8;\n"
" gl_TessLevelOuter[1] = 2.8;\n"
" gl_TessLevelOuter[2] = 2.8;\n"
" gl_TessLevelOuter[3] = 2.8;\n"
"}\n";
tcu::ResultCollector result (m_testCtx.getLog(), " // ERROR: ");
glu::CallLogWrapper gl (m_context.getRenderContext().getFunctions(), m_testCtx.getLog());
glu::ShaderProgram program (m_context.getRenderContext(), glu::ProgramSources()
<< glu::TessellationControlSource(specializeShader(m_context, s_controlSource))
<< glu::ProgramSeparable(true));
gl.enableLogging(true);
m_testCtx.getLog() << program;
if (!program.isOk())
result.fail("failed to build program");
else
{
const deUint32 props[1] = { GL_IS_PER_PATCH };
{
const tcu::ScopedLogSection section (m_testCtx.getLog(), "PerPatchOutput", "Per patch v_perPatch");
deUint32 resourcePos;
glw::GLsizei length = 0;
glw::GLint referenced = 0;
resourcePos = gl.glGetProgramResourceIndex(program.getProgram(), GL_PROGRAM_OUTPUT, "v_perPatch");
m_testCtx.getLog() << tcu::TestLog::Message << "v_perPatch resource index: " << resourcePos << tcu::TestLog::EndMessage;
if (resourcePos == GL_INVALID_INDEX)
result.fail("resourcePos was GL_INVALID_INDEX");
else
{
gl.glGetProgramResourceiv(program.getProgram(), GL_PROGRAM_OUTPUT, resourcePos, 1, props, 1, &length, &referenced);
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Query " << glu::getProgramResourcePropertyStr(props[0])
<< ", got " << length << " value(s), value[0] = " << glu::getBooleanStr(referenced)
<< tcu::TestLog::EndMessage;
GLS_COLLECT_GL_ERROR(result, gl.glGetError(), "query resource");
if (length == 0 || referenced != GL_TRUE)
result.fail("expected GL_TRUE");
}
}
{
const tcu::ScopedLogSection section (m_testCtx.getLog(), "PerVertexhOutput", "Per vertex v_perVertex");
deUint32 resourcePos;
glw::GLsizei length = 0;
glw::GLint referenced = 0;
resourcePos = gl.glGetProgramResourceIndex(program.getProgram(), GL_PROGRAM_OUTPUT, "v_perVertex");
m_testCtx.getLog() << tcu::TestLog::Message << "v_perVertex resource index: " << resourcePos << tcu::TestLog::EndMessage;
if (resourcePos == GL_INVALID_INDEX)
result.fail("resourcePos was GL_INVALID_INDEX");
else
{
gl.glGetProgramResourceiv(program.getProgram(), GL_PROGRAM_OUTPUT, resourcePos, 1, props, 1, &length, &referenced);
m_testCtx.getLog()
<< tcu::TestLog::Message
<< "Query " << glu::getProgramResourcePropertyStr(props[0])
<< ", got " << length << " value(s), value[0] = " << glu::getBooleanStr(referenced)
<< tcu::TestLog::EndMessage;
GLU_EXPECT_NO_ERROR(gl.glGetError(), "query resource");
if (length == 0 || referenced != GL_FALSE)
result.fail("expected GL_FALSE");
}
}
}
result.setTestContextResult(m_testCtx);
return STOP;
}
} // anonymous
TessellationTests::TessellationTests (Context& context)
: TestCaseGroup(context, "tessellation", "Tessellation Tests")
{
}
TessellationTests::~TessellationTests (void)
{
}
void TessellationTests::init (void)
{
{
tcu::TestCaseGroup* const queryGroup = new tcu::TestCaseGroup(m_testCtx, "state_query", "Query tests");
addChild(queryGroup);
// new limits
queryGroup->addChild(new LimitQueryCase(m_context, "max_patch_vertices", "Test MAX_PATCH_VERTICES", GL_MAX_PATCH_VERTICES, 32));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_gen_level", "Test MAX_TESS_GEN_LEVEL", GL_MAX_TESS_GEN_LEVEL, 64));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_uniform_components", "Test MAX_TESS_CONTROL_UNIFORM_COMPONENTS", GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS, 1024));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_uniform_components", "Test MAX_TESS_EVALUATION_UNIFORM_COMPONENTS", GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS, 1024));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_texture_image_units", "Test MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS", GL_MAX_TESS_CONTROL_TEXTURE_IMAGE_UNITS, 16));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_texture_image_units", "Test MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS", GL_MAX_TESS_EVALUATION_TEXTURE_IMAGE_UNITS, 16));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_output_components", "Test MAX_TESS_CONTROL_OUTPUT_COMPONENTS", GL_MAX_TESS_CONTROL_OUTPUT_COMPONENTS, 64));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_patch_components", "Test MAX_TESS_PATCH_COMPONENTS", GL_MAX_TESS_PATCH_COMPONENTS, 120));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_total_output_components", "Test MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS", GL_MAX_TESS_CONTROL_TOTAL_OUTPUT_COMPONENTS, 2048));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_output_components", "Test MAX_TESS_EVALUATION_OUTPUT_COMPONENTS", GL_MAX_TESS_EVALUATION_OUTPUT_COMPONENTS, 64));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_uniform_blocks", "Test MAX_TESS_CONTROL_UNIFORM_BLOCKS", GL_MAX_TESS_CONTROL_UNIFORM_BLOCKS, 12));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_uniform_blocks", "Test MAX_TESS_EVALUATION_UNIFORM_BLOCKS", GL_MAX_TESS_EVALUATION_UNIFORM_BLOCKS, 12));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_input_components", "Test MAX_TESS_CONTROL_INPUT_COMPONENTS", GL_MAX_TESS_CONTROL_INPUT_COMPONENTS, 64));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_input_components", "Test MAX_TESS_EVALUATION_INPUT_COMPONENTS", GL_MAX_TESS_EVALUATION_INPUT_COMPONENTS, 64));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_atomic_counter_buffers", "Test MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS", GL_MAX_TESS_CONTROL_ATOMIC_COUNTER_BUFFERS, 0));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_atomic_counter_buffers", "Test MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS", GL_MAX_TESS_EVALUATION_ATOMIC_COUNTER_BUFFERS, 0));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_atomic_counters", "Test MAX_TESS_CONTROL_ATOMIC_COUNTERS", GL_MAX_TESS_CONTROL_ATOMIC_COUNTERS, 0));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_atomic_counters", "Test MAX_TESS_EVALUATION_ATOMIC_COUNTERS", GL_MAX_TESS_EVALUATION_ATOMIC_COUNTERS, 0));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_image_uniforms", "Test MAX_TESS_CONTROL_IMAGE_UNIFORMS", GL_MAX_TESS_CONTROL_IMAGE_UNIFORMS, 0));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_image_uniforms", "Test MAX_TESS_EVALUATION_IMAGE_UNIFORMS", GL_MAX_TESS_EVALUATION_IMAGE_UNIFORMS, 0));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_control_shader_storage_blocks", "Test MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS", GL_MAX_TESS_CONTROL_SHADER_STORAGE_BLOCKS, 0));
queryGroup->addChild(new LimitQueryCase(m_context, "max_tess_evaluation_shader_storage_blocks", "Test MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS", GL_MAX_TESS_EVALUATION_SHADER_STORAGE_BLOCKS, 0));
// modified limits
queryGroup->addChild(new LimitQueryCase(m_context, "max_uniform_buffer_bindings", "Test MAX_UNIFORM_BUFFER_BINDINGS", GL_MAX_UNIFORM_BUFFER_BINDINGS, 72));
queryGroup->addChild(new LimitQueryCase(m_context, "max_combined_uniform_blocks", "Test MAX_COMBINED_UNIFORM_BLOCKS", GL_MAX_COMBINED_UNIFORM_BLOCKS, 60));
queryGroup->addChild(new LimitQueryCase(m_context, "max_combined_texture_image_units", "Test MAX_COMBINED_TEXTURE_IMAGE_UNITS", GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, 96));
// combined limits
queryGroup->addChild(new CombinedUniformLimitCase(m_context, "max_combined_tess_control_uniform_components", "Test MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS", GL_MAX_COMBINED_TESS_CONTROL_UNIFORM_COMPONENTS, GL_MAX_TESS_CONTROL_UNIFORM_BLOCKS, GL_MAX_TESS_CONTROL_UNIFORM_COMPONENTS));
queryGroup->addChild(new CombinedUniformLimitCase(m_context, "max_combined_tess_evaluation_uniform_components", "Test MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS", GL_MAX_COMBINED_TESS_EVALUATION_UNIFORM_COMPONENTS, GL_MAX_TESS_EVALUATION_UNIFORM_BLOCKS, GL_MAX_TESS_EVALUATION_UNIFORM_COMPONENTS));
// features
queryGroup->addChild(new PrimitiveRestartForPatchesSupportedCase(m_context, "primitive_restart_for_patches_supported", "Test PRIMITIVE_RESTART_FOR_PATCHES_SUPPORTED"));
// states
queryGroup->addChild(new PatchVerticesStateCase(m_context, "patch_vertices", "Test PATCH_VERTICES"));
// program states
queryGroup->addChild(new TessControlOutputVerticesCase (m_context, "tess_control_output_vertices", "Test TESS_CONTROL_OUTPUT_VERTICES"));
queryGroup->addChild(new TessGenModeQueryCase (m_context, "tess_gen_mode", "Test TESS_GEN_MODE"));
queryGroup->addChild(new TessGenSpacingQueryCase (m_context, "tess_gen_spacing", "Test TESS_GEN_SPACING"));
queryGroup->addChild(new TessGenVertexOrderQueryCase (m_context, "tess_gen_vertex_order", "Test TESS_GEN_VERTEX_ORDER"));
queryGroup->addChild(new TessGenPointModeQueryCase (m_context, "tess_gen_point_mode", "Test TESS_GEN_POINT_MODE"));
// resource queries
queryGroup->addChild(new ReferencedByTessellationQueryCase (m_context, "referenced_by_tess_control_shader", "Test REFERENCED_BY_TESS_CONTROL_SHADER", true));
queryGroup->addChild(new ReferencedByTessellationQueryCase (m_context, "referenced_by_tess_evaluation_shader", "Test REFERENCED_BY_TESS_EVALUATION_SHADER", false));
queryGroup->addChild(new IsPerPatchQueryCase (m_context, "is_per_patch", "Test IS_PER_PATCH"));
}
{
TestCaseGroup* const tessCoordGroup = new TestCaseGroup(m_context, "tesscoord", "Get tessellation coordinates with transform feedback and validate them");
addChild(tessCoordGroup);
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
for (int spacingI = 0; spacingI < SPACINGMODE_LAST; spacingI++)
tessCoordGroup->addChild(new TessCoordCase(m_context,
(string() + getTessPrimitiveTypeShaderName(primitiveType) + "_" + getSpacingModeShaderName((SpacingMode)spacingI)).c_str(), "",
primitiveType, (SpacingMode)spacingI));
}
}
{
TestCaseGroup* const windingGroup = new TestCaseGroup(m_context, "winding", "Test the cw and ccw input layout qualifiers");
addChild(windingGroup);
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
if (primitiveType == TESSPRIMITIVETYPE_ISOLINES)
continue;
for (int windingI = 0; windingI < WINDING_LAST; windingI++)
{
const Winding winding = (Winding)windingI;
windingGroup->addChild(new WindingCase(m_context, (string() + getTessPrimitiveTypeShaderName(primitiveType) + "_" + getWindingShaderName(winding)).c_str(), "", primitiveType, winding));
}
}
}
{
TestCaseGroup* const shaderInputOutputGroup = new TestCaseGroup(m_context, "shader_input_output", "Test tessellation control and evaluation shader inputs and outputs");
addChild(shaderInputOutputGroup);
{
static const struct
{
int inPatchSize;
int outPatchSize;
} patchVertexCountCases[] =
{
{ 5, 10 },
{ 10, 5 }
};
for (int caseNdx = 0; caseNdx < DE_LENGTH_OF_ARRAY(patchVertexCountCases); caseNdx++)
{
const int inSize = patchVertexCountCases[caseNdx].inPatchSize;
const int outSize = patchVertexCountCases[caseNdx].outPatchSize;
const string caseName = "patch_vertices_" + de::toString(inSize) + "_in_" + de::toString(outSize) + "_out";
shaderInputOutputGroup->addChild(new PatchVertexCountCase(m_context, caseName.c_str(), "Test input and output patch vertex counts", inSize, outSize,
("data/tessellation/" + caseName + "_ref.png").c_str()));
}
}
for (int caseTypeI = 0; caseTypeI < PerPatchDataCase::CASETYPE_LAST; caseTypeI++)
{
const PerPatchDataCase::CaseType caseType = (PerPatchDataCase::CaseType)caseTypeI;
const char* const caseName = PerPatchDataCase::getCaseTypeName(caseType);
shaderInputOutputGroup->addChild(new PerPatchDataCase(m_context, caseName, PerPatchDataCase::getCaseTypeDescription(caseType), caseType,
PerPatchDataCase::caseTypeUsesRefImageFromFile(caseType) ? (string() + "data/tessellation/" + caseName + "_ref.png").c_str() : DE_NULL));
}
for (int caseTypeI = 0; caseTypeI < GLPositionCase::CASETYPE_LAST; caseTypeI++)
{
const GLPositionCase::CaseType caseType = (GLPositionCase::CaseType)caseTypeI;
const char* const caseName = GLPositionCase::getCaseTypeName(caseType);
shaderInputOutputGroup->addChild(new GLPositionCase(m_context, caseName, "", caseType, "data/tessellation/gl_position_ref.png"));
}
shaderInputOutputGroup->addChild(new BarrierCase(m_context, "barrier", "Basic barrier usage", "data/tessellation/barrier_ref.png"));
}
{
TestCaseGroup* const miscDrawGroup = new TestCaseGroup(m_context, "misc_draw", "Miscellaneous draw-result-verifying cases");
addChild(miscDrawGroup);
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
if (primitiveType == TESSPRIMITIVETYPE_ISOLINES)
continue;
const char* const primTypeName = getTessPrimitiveTypeShaderName(primitiveType);
for (int spacingI = 0; spacingI < SPACINGMODE_LAST; spacingI++)
{
const string caseName = string() + "fill_cover_" + primTypeName + "_" + getSpacingModeShaderName((SpacingMode)spacingI);
miscDrawGroup->addChild(new BasicTriangleFillCoverCase(m_context,
caseName.c_str(), "Check that there are no obvious gaps in the triangle-filled area of a tessellated shape",
primitiveType, (SpacingMode)spacingI,
("data/tessellation/" + caseName + "_ref").c_str()));
}
}
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
if (primitiveType == TESSPRIMITIVETYPE_ISOLINES)
continue;
const char* const primTypeName = getTessPrimitiveTypeShaderName(primitiveType);
for (int spacingI = 0; spacingI < SPACINGMODE_LAST; spacingI++)
{
const string caseName = string() + "fill_overlap_" + primTypeName + "_" + getSpacingModeShaderName((SpacingMode)spacingI);
miscDrawGroup->addChild(new BasicTriangleFillNonOverlapCase(m_context,
caseName.c_str(), "Check that there are no obvious triangle overlaps in the triangle-filled area of a tessellated shape",
primitiveType, (SpacingMode)spacingI,
("data/tessellation/" + caseName + "_ref").c_str()));
}
}
for (int spacingI = 0; spacingI < SPACINGMODE_LAST; spacingI++)
{
const string caseName = string() + "isolines_" + getSpacingModeShaderName((SpacingMode)spacingI);
miscDrawGroup->addChild(new IsolinesRenderCase(m_context,
caseName.c_str(), "Basic isolines render test",
(SpacingMode)spacingI,
("data/tessellation/" + caseName + "_ref").c_str()));
}
}
{
TestCaseGroup* const commonEdgeGroup = new TestCaseGroup(m_context, "common_edge", "Draw multiple adjacent shapes and check that no cracks appear between them");
addChild(commonEdgeGroup);
for (int caseTypeI = 0; caseTypeI < CommonEdgeCase::CASETYPE_LAST; caseTypeI++)
{
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const CommonEdgeCase::CaseType caseType = (CommonEdgeCase::CaseType)caseTypeI;
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
if (primitiveType == TESSPRIMITIVETYPE_ISOLINES)
continue;
for (int spacingI = 0; spacingI < SPACINGMODE_LAST; spacingI++)
{
const SpacingMode spacing = (SpacingMode)spacingI;
const string caseName = (string() + getTessPrimitiveTypeShaderName(primitiveType)
+ "_" + getSpacingModeShaderName(spacing)
+ (caseType == CommonEdgeCase::CASETYPE_BASIC ? ""
: caseType == CommonEdgeCase::CASETYPE_PRECISE ? "_precise"
: DE_NULL));
commonEdgeGroup->addChild(new CommonEdgeCase(m_context, caseName.c_str(), "", primitiveType, spacing, caseType));
}
}
}
}
{
TestCaseGroup* const fractionalSpacingModeGroup = new TestCaseGroup(m_context, "fractional_spacing", "Test fractional spacing modes");
addChild(fractionalSpacingModeGroup);
fractionalSpacingModeGroup->addChild(new FractionalSpacingModeCase(m_context, "odd", "", SPACINGMODE_FRACTIONAL_ODD));
fractionalSpacingModeGroup->addChild(new FractionalSpacingModeCase(m_context, "even", "", SPACINGMODE_FRACTIONAL_EVEN));
}
{
TestCaseGroup* const primitiveDiscardGroup = new TestCaseGroup(m_context, "primitive_discard", "Test primitive discard with relevant outer tessellation level <= 0.0");
addChild(primitiveDiscardGroup);
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
for (int spacingI = 0; spacingI < SPACINGMODE_LAST; spacingI++)
{
for (int windingI = 0; windingI < WINDING_LAST; windingI++)
{
for (int usePointModeI = 0; usePointModeI <= 1; usePointModeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
const SpacingMode spacing = (SpacingMode)spacingI;
const Winding winding = (Winding)windingI;
const bool usePointMode = usePointModeI != 0;
primitiveDiscardGroup->addChild(new PrimitiveDiscardCase(m_context, (string() + getTessPrimitiveTypeShaderName(primitiveType)
+ "_" + getSpacingModeShaderName(spacing)
+ "_" + getWindingShaderName(winding)
+ (usePointMode ? "_point_mode" : "")).c_str(), "",
primitiveType, spacing, winding, usePointMode));
}
}
}
}
}
{
TestCaseGroup* const invarianceGroup = new TestCaseGroup(m_context, "invariance", "Test tessellation invariance rules");
TestCaseGroup* const invariantPrimitiveSetGroup = new TestCaseGroup(m_context, "primitive_set", "Test invariance rule #1");
TestCaseGroup* const invariantOuterEdgeGroup = new TestCaseGroup(m_context, "outer_edge_division", "Test invariance rule #2");
TestCaseGroup* const symmetricOuterEdgeGroup = new TestCaseGroup(m_context, "outer_edge_symmetry", "Test invariance rule #3");
TestCaseGroup* const outerEdgeVertexSetIndexIndependenceGroup = new TestCaseGroup(m_context, "outer_edge_index_independence", "Test invariance rule #4");
TestCaseGroup* const invariantTriangleSetGroup = new TestCaseGroup(m_context, "triangle_set", "Test invariance rule #5");
TestCaseGroup* const invariantInnerTriangleSetGroup = new TestCaseGroup(m_context, "inner_triangle_set", "Test invariance rule #6");
TestCaseGroup* const invariantOuterTriangleSetGroup = new TestCaseGroup(m_context, "outer_triangle_set", "Test invariance rule #7");
TestCaseGroup* const tessCoordComponentRangeGroup = new TestCaseGroup(m_context, "tess_coord_component_range", "Test invariance rule #8, first part");
TestCaseGroup* const oneMinusTessCoordComponentGroup = new TestCaseGroup(m_context, "one_minus_tess_coord_component", "Test invariance rule #8, second part");
addChild(invarianceGroup);
invarianceGroup->addChild(invariantPrimitiveSetGroup);
invarianceGroup->addChild(invariantOuterEdgeGroup);
invarianceGroup->addChild(symmetricOuterEdgeGroup);
invarianceGroup->addChild(outerEdgeVertexSetIndexIndependenceGroup);
invarianceGroup->addChild(invariantTriangleSetGroup);
invarianceGroup->addChild(invariantInnerTriangleSetGroup);
invarianceGroup->addChild(invariantOuterTriangleSetGroup);
invarianceGroup->addChild(tessCoordComponentRangeGroup);
invarianceGroup->addChild(oneMinusTessCoordComponentGroup);
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
const string primName = getTessPrimitiveTypeShaderName(primitiveType);
const bool triOrQuad = primitiveType == TESSPRIMITIVETYPE_TRIANGLES || primitiveType == TESSPRIMITIVETYPE_QUADS;
for (int spacingI = 0; spacingI < SPACINGMODE_LAST; spacingI++)
{
const SpacingMode spacing = (SpacingMode)spacingI;
const string primSpacName = primName + "_" + getSpacingModeShaderName(spacing);
if (triOrQuad)
{
invariantOuterEdgeGroup->addChild (new InvariantOuterEdgeCase (m_context, primSpacName.c_str(), "", primitiveType, spacing));
invariantTriangleSetGroup->addChild (new InvariantTriangleSetCase (m_context, primSpacName.c_str(), "", primitiveType, spacing));
invariantInnerTriangleSetGroup->addChild(new InvariantInnerTriangleSetCase (m_context, primSpacName.c_str(), "", primitiveType, spacing));
invariantOuterTriangleSetGroup->addChild(new InvariantOuterTriangleSetCase (m_context, primSpacName.c_str(), "", primitiveType, spacing));
}
for (int windingI = 0; windingI < WINDING_LAST; windingI++)
{
const Winding winding = (Winding)windingI;
const string primSpacWindName = primSpacName + "_" + getWindingShaderName(winding);
for (int usePointModeI = 0; usePointModeI <= 1; usePointModeI++)
{
const bool usePointMode = usePointModeI != 0;
const string primSpacWindPointName = primSpacWindName + (usePointMode ? "_point_mode" : "");
invariantPrimitiveSetGroup->addChild (new InvariantPrimitiveSetCase (m_context, primSpacWindPointName.c_str(), "", primitiveType, spacing, winding, usePointMode));
symmetricOuterEdgeGroup->addChild (new SymmetricOuterEdgeCase (m_context, primSpacWindPointName.c_str(), "", primitiveType, spacing, winding, usePointMode));
tessCoordComponentRangeGroup->addChild (new TessCoordComponentRangeCase (m_context, primSpacWindPointName.c_str(), "", primitiveType, spacing, winding, usePointMode));
oneMinusTessCoordComponentGroup->addChild (new OneMinusTessCoordComponentCase (m_context, primSpacWindPointName.c_str(), "", primitiveType, spacing, winding, usePointMode));
if (triOrQuad)
outerEdgeVertexSetIndexIndependenceGroup->addChild(new OuterEdgeVertexSetIndexIndependenceCase(m_context, primSpacWindPointName.c_str(), "",
primitiveType, spacing, winding, usePointMode));
}
}
}
}
}
{
static const struct
{
const char* name;
const char* description;
UserDefinedIOCase::IOType ioType;
} ioCases[] =
{
{ "per_patch", "Per-patch TCS outputs", UserDefinedIOCase::IO_TYPE_PER_PATCH },
{ "per_patch_array", "Per-patch array TCS outputs", UserDefinedIOCase::IO_TYPE_PER_PATCH_ARRAY },
{ "per_patch_block", "Per-patch TCS outputs in IO block", UserDefinedIOCase::IO_TYPE_PER_PATCH_BLOCK },
{ "per_patch_block_array", "Per-patch TCS outputs in IO block array", UserDefinedIOCase::IO_TYPE_PER_PATCH_BLOCK_ARRAY },
{ "per_vertex", "Per-vertex TCS outputs", UserDefinedIOCase::IO_TYPE_PER_VERTEX },
{ "per_vertex_block", "Per-vertex TCS outputs in IO block", UserDefinedIOCase::IO_TYPE_PER_VERTEX_BLOCK },
};
TestCaseGroup* const userDefinedIOGroup = new TestCaseGroup(m_context, "user_defined_io", "Test non-built-in per-patch and per-vertex inputs and outputs");
addChild(userDefinedIOGroup);
for (int ndx = 0; ndx < DE_LENGTH_OF_ARRAY(ioCases); ++ndx)
{
TestCaseGroup* const ioTypeGroup = new TestCaseGroup(m_context, ioCases[ndx].name, ioCases[ndx].description);
userDefinedIOGroup->addChild(ioTypeGroup);
for (int vertexArraySizeI = 0; vertexArraySizeI < UserDefinedIOCase::VERTEX_IO_ARRAY_SIZE_LAST; vertexArraySizeI++)
{
const UserDefinedIOCase::VertexIOArraySize vertexArraySize = (UserDefinedIOCase::VertexIOArraySize)vertexArraySizeI;
TestCaseGroup* const vertexArraySizeGroup = new TestCaseGroup(m_context,
vertexArraySizeI == UserDefinedIOCase::VERTEX_IO_ARRAY_SIZE_IMPLICIT
? "vertex_io_array_size_implicit"
: vertexArraySizeI == UserDefinedIOCase::VERTEX_IO_ARRAY_SIZE_EXPLICIT_SHADER_BUILTIN
? "vertex_io_array_size_shader_builtin"
: vertexArraySizeI == UserDefinedIOCase::VERTEX_IO_ARRAY_SIZE_EXPLICIT_QUERY
? "vertex_io_array_size_query"
: DE_NULL,
"");
ioTypeGroup->addChild(vertexArraySizeGroup);
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
vertexArraySizeGroup->addChild(new UserDefinedIOCase(m_context, getTessPrimitiveTypeShaderName(primitiveType), "", primitiveType, ioCases[ndx].ioType, vertexArraySize, UserDefinedIOCase::TESS_CONTROL_OUT_ARRAY_SIZE_IMPLICIT,
(string() + "data/tessellation/user_defined_io_" + getTessPrimitiveTypeShaderName(primitiveType) + "_ref.png").c_str()));
}
if (ioCases[ndx].ioType == UserDefinedIOCase::IO_TYPE_PER_VERTEX
|| ioCases[ndx].ioType == UserDefinedIOCase::IO_TYPE_PER_VERTEX_BLOCK)
{
for (int primitiveTypeI = 0; primitiveTypeI < TESSPRIMITIVETYPE_LAST; primitiveTypeI++)
{
const TessPrimitiveType primitiveType = (TessPrimitiveType)primitiveTypeI;
vertexArraySizeGroup->addChild(new UserDefinedIOCase(m_context, (string(getTessPrimitiveTypeShaderName(primitiveType)) + "_explicit_tcs_out_size").c_str(), "", primitiveType, ioCases[ndx].ioType, vertexArraySize, UserDefinedIOCase::TESS_CONTROL_OUT_ARRAY_SIZE_LAYOUT,
(string() + "data/tessellation/user_defined_io_" + getTessPrimitiveTypeShaderName(primitiveType) + "_ref.png").c_str()));
}
}
}
}
{
de::MovePtr<TestCaseGroup> negativeGroup (new TestCaseGroup(m_context, "negative", "Negative cases"));
{
de::MovePtr<TestCaseGroup> es31Group (new TestCaseGroup(m_context, "es31", "GLSL ES 3.1 Negative cases"));
gls::ShaderLibrary shaderLibrary (m_testCtx, m_context.getRenderContext(), m_context.getContextInfo());
const std::vector<tcu::TestNode*> children = shaderLibrary.loadShaderFile("shaders/es31/tessellation_negative_user_defined_io.test");
for (int i = 0; i < (int)children.size(); i++)
es31Group->addChild(children[i]);
negativeGroup->addChild(es31Group.release());
}
{
de::MovePtr<TestCaseGroup> es32Group (new TestCaseGroup(m_context, "es32", "GLSL ES 3.2 Negative cases"));
gls::ShaderLibrary shaderLibrary (m_testCtx, m_context.getRenderContext(), m_context.getContextInfo());
const std::vector<tcu::TestNode*> children = shaderLibrary.loadShaderFile("shaders/es32/tessellation_negative_user_defined_io.test");
for (int i = 0; i < (int)children.size(); i++)
es32Group->addChild(children[i]);
negativeGroup->addChild(es32Group.release());
}
userDefinedIOGroup->addChild(negativeGroup.release());
}
}
}
} // Functional
} // gles31
} // deqp