/*-------------------------------------------------------------------------
* drawElements Quality Program OpenGL ES 3.0 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 Floating-point packing and unpacking function tests.
*//*--------------------------------------------------------------------*/
#include "es3fShaderPackingFunctionTests.hpp"
#include "glsShaderExecUtil.hpp"
#include "tcuTestLog.hpp"
#include "tcuFormatUtil.hpp"
#include "tcuFloat.hpp"
#include "deRandom.hpp"
#include "deMath.h"
#include "deString.h"
namespace deqp
{
namespace gles3
{
namespace Functional
{
using std::string;
using tcu::TestLog;
using namespace gls::ShaderExecUtil;
namespace
{
inline deUint32 getUlpDiff (float a, float b)
{
const deUint32 aBits = tcu::Float32(a).bits();
const deUint32 bBits = tcu::Float32(b).bits();
return aBits > bBits ? aBits - bBits : bBits - aBits;
}
struct HexFloat
{
const float value;
HexFloat (const float value_) : value(value_) {}
};
std::ostream& operator<< (std::ostream& str, const HexFloat& v)
{
return str << v.value << " / " << tcu::toHex(tcu::Float32(v.value).bits());
}
} // anonymous
// ShaderPackingFunctionCase
class ShaderPackingFunctionCase : public TestCase
{
public:
ShaderPackingFunctionCase (Context& context, const char* name, const char* description, glu::ShaderType shaderType);
~ShaderPackingFunctionCase (void);
void init (void);
void deinit (void);
protected:
glu::ShaderType m_shaderType;
ShaderSpec m_spec;
ShaderExecutor* m_executor;
private:
ShaderPackingFunctionCase (const ShaderPackingFunctionCase& other);
ShaderPackingFunctionCase& operator= (const ShaderPackingFunctionCase& other);
};
ShaderPackingFunctionCase::ShaderPackingFunctionCase (Context& context, const char* name, const char* description, glu::ShaderType shaderType)
: TestCase (context, name, description)
, m_shaderType (shaderType)
, m_executor (DE_NULL)
{
m_spec.version = glu::GLSL_VERSION_300_ES;
}
ShaderPackingFunctionCase::~ShaderPackingFunctionCase (void)
{
ShaderPackingFunctionCase::deinit();
}
void ShaderPackingFunctionCase::init (void)
{
DE_ASSERT(!m_executor);
m_executor = createExecutor(m_context.getRenderContext(), m_shaderType, m_spec);
m_testCtx.getLog() << m_executor;
if (!m_executor->isOk())
throw tcu::TestError("Compile failed");
}
void ShaderPackingFunctionCase::deinit (void)
{
delete m_executor;
m_executor = DE_NULL;
}
// Test cases
static const char* getPrecisionPostfix (glu::Precision precision)
{
static const char* s_postfix[] =
{
"_lowp",
"_mediump",
"_highp"
};
DE_STATIC_ASSERT(DE_LENGTH_OF_ARRAY(s_postfix) == glu::PRECISION_LAST);
DE_ASSERT(de::inBounds<int>(precision, 0, DE_LENGTH_OF_ARRAY(s_postfix)));
return s_postfix[precision];
}
static const char* getShaderTypePostfix (glu::ShaderType shaderType)
{
static const char* s_postfix[] =
{
"_vertex",
"_fragment"
};
DE_ASSERT(de::inBounds<int>(shaderType, 0, DE_LENGTH_OF_ARRAY(s_postfix)));
return s_postfix[shaderType];
}
class PackSnorm2x16Case : public ShaderPackingFunctionCase
{
public:
PackSnorm2x16Case (Context& context, glu::ShaderType shaderType, glu::Precision precision)
: ShaderPackingFunctionCase (context, (string("packsnorm2x16") + getPrecisionPostfix(precision) + getShaderTypePostfix(shaderType)).c_str(), "packSnorm2x16", shaderType)
, m_precision (precision)
{
m_spec.inputs.push_back(Symbol("in0", glu::VarType(glu::TYPE_FLOAT_VEC2, precision)));
m_spec.outputs.push_back(Symbol("out0", glu::VarType(glu::TYPE_UINT, glu::PRECISION_HIGHP)));
m_spec.source = "out0 = packSnorm2x16(in0);";
}
IterateResult iterate (void)
{
de::Random rnd (deStringHash(getName()) ^ 0x776002);
std::vector<tcu::Vec2> inputs;
std::vector<deUint32> outputs;
const int maxDiff = m_precision == glu::PRECISION_HIGHP ? 1 : // Rounding only.
m_precision == glu::PRECISION_MEDIUMP ? 33 : // (2^-10) * (2^15) + 1
m_precision == glu::PRECISION_LOWP ? 129 : 0; // (2^-8) * (2^15) + 1
// Special values to check.
inputs.push_back(tcu::Vec2(0.0f, 0.0f));
inputs.push_back(tcu::Vec2(-1.0f, 1.0f));
inputs.push_back(tcu::Vec2(0.5f, -0.5f));
inputs.push_back(tcu::Vec2(-1.5f, 1.5f));
inputs.push_back(tcu::Vec2(0.25f, -0.75f));
// Random values, mostly in range.
for (int ndx = 0; ndx < 15; ndx++)
{
const float x = rnd.getFloat()*2.5f - 1.25f;
const float y = rnd.getFloat()*2.5f - 1.25f;
inputs.push_back(tcu::Vec2(x, y));
}
// Large random values.
for (int ndx = 0; ndx < 80; ndx++)
{
const float x = rnd.getFloat()*1e6f - 0.5e6f;
const float y = rnd.getFloat()*1e6f - 0.5e6f;
inputs.push_back(tcu::Vec2(x, y));
}
outputs.resize(inputs.size());
m_testCtx.getLog() << TestLog::Message << "Executing shader for " << inputs.size() << " input values" << tcu::TestLog::EndMessage;
{
const void* in = &inputs[0];
void* out = &outputs[0];
m_executor->useProgram();
m_executor->execute((int)inputs.size(), &in, &out);
}
// Verify
{
const int numValues = (int)inputs.size();
const int maxPrints = 10;
int numFailed = 0;
for (int valNdx = 0; valNdx < numValues; valNdx++)
{
const deUint16 ref0 = (deUint16)de::clamp(deRoundFloatToInt32(de::clamp(inputs[valNdx].x(), -1.0f, 1.0f) * 32767.0f), -(1<<15), (1<<15)-1);
const deUint16 ref1 = (deUint16)de::clamp(deRoundFloatToInt32(de::clamp(inputs[valNdx].y(), -1.0f, 1.0f) * 32767.0f), -(1<<15), (1<<15)-1);
const deUint32 ref = (ref1 << 16) | ref0;
const deUint32 res = outputs[valNdx];
const deUint16 res0 = (deUint16)(res & 0xffff);
const deUint16 res1 = (deUint16)(res >> 16);
const int diff0 = de::abs((int)ref0 - (int)res0);
const int diff1 = de::abs((int)ref1 - (int)res1);
if (diff0 > maxDiff || diff1 > maxDiff)
{
if (numFailed < maxPrints)
{
m_testCtx.getLog() << TestLog::Message << "ERROR: Mismatch in value " << valNdx
<< ", expected packSnorm2x16(" << inputs[valNdx] << ") = " << tcu::toHex(ref)
<< ", got " << tcu::toHex(res)
<< "\n diffs = (" << diff0 << ", " << diff1 << "), max diff = " << maxDiff
<< TestLog::EndMessage;
}
else if (numFailed == maxPrints)
m_testCtx.getLog() << TestLog::Message << "..." << TestLog::EndMessage;
numFailed += 1;
}
}
m_testCtx.getLog() << TestLog::Message << (numValues - numFailed) << " / " << numValues << " values passed" << TestLog::EndMessage;
m_testCtx.setTestResult(numFailed == 0 ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL,
numFailed == 0 ? "Pass" : "Result comparison failed");
}
return STOP;
}
private:
glu::Precision m_precision;
};
class UnpackSnorm2x16Case : public ShaderPackingFunctionCase
{
public:
UnpackSnorm2x16Case (Context& context, glu::ShaderType shaderType)
: ShaderPackingFunctionCase(context, (string("unpacksnorm2x16") + getShaderTypePostfix(shaderType)).c_str(), "unpackSnorm2x16", shaderType)
{
m_spec.inputs.push_back(Symbol("in0", glu::VarType(glu::TYPE_UINT, glu::PRECISION_HIGHP)));
m_spec.outputs.push_back(Symbol("out0", glu::VarType(glu::TYPE_FLOAT_VEC2, glu::PRECISION_HIGHP)));
m_spec.source = "out0 = unpackSnorm2x16(in0);";
}
IterateResult iterate (void)
{
const deUint32 maxDiff = 1; // Rounding error.
de::Random rnd (deStringHash(getName()) ^ 0x776002);
std::vector<deUint32> inputs;
std::vector<tcu::Vec2> outputs;
inputs.push_back(0x00000000u);
inputs.push_back(0x7fff8000u);
inputs.push_back(0x80007fffu);
inputs.push_back(0xffffffffu);
inputs.push_back(0x0001fffeu);
// Random values.
for (int ndx = 0; ndx < 95; ndx++)
inputs.push_back(rnd.getUint32());
outputs.resize(inputs.size());
m_testCtx.getLog() << TestLog::Message << "Executing shader for " << inputs.size() << " input values" << tcu::TestLog::EndMessage;
{
const void* in = &inputs[0];
void* out = &outputs[0];
m_executor->useProgram();
m_executor->execute((int)inputs.size(), &in, &out);
}
// Verify
{
const int numValues = (int)inputs.size();
const int maxPrints = 10;
int numFailed = 0;
for (int valNdx = 0; valNdx < (int)inputs.size(); valNdx++)
{
const deInt16 in0 = (deInt16)(deUint16)(inputs[valNdx] & 0xffff);
const deInt16 in1 = (deInt16)(deUint16)(inputs[valNdx] >> 16);
const float ref0 = de::clamp(float(in0) / 32767.f, -1.0f, 1.0f);
const float ref1 = de::clamp(float(in1) / 32767.f, -1.0f, 1.0f);
const float res0 = outputs[valNdx].x();
const float res1 = outputs[valNdx].y();
const deUint32 diff0 = getUlpDiff(ref0, res0);
const deUint32 diff1 = getUlpDiff(ref1, res1);
if (diff0 > maxDiff || diff1 > maxDiff)
{
if (numFailed < maxPrints)
{
m_testCtx.getLog() << TestLog::Message << "ERROR: Mismatch in value " << valNdx << ",\n"
<< " expected unpackSnorm2x16(" << tcu::toHex(inputs[valNdx]) << ") = "
<< "vec2(" << HexFloat(ref0) << ", " << HexFloat(ref1) << ")"
<< ", got vec2(" << HexFloat(res0) << ", " << HexFloat(res1) << ")"
<< "\n ULP diffs = (" << diff0 << ", " << diff1 << "), max diff = " << maxDiff
<< TestLog::EndMessage;
}
else if (numFailed == maxPrints)
m_testCtx.getLog() << TestLog::Message << "..." << TestLog::EndMessage;
numFailed += 1;
}
}
m_testCtx.getLog() << TestLog::Message << (numValues - numFailed) << " / " << numValues << " values passed" << TestLog::EndMessage;
m_testCtx.setTestResult(numFailed == 0 ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL,
numFailed == 0 ? "Pass" : "Result comparison failed");
}
return STOP;
}
};
class PackUnorm2x16Case : public ShaderPackingFunctionCase
{
public:
PackUnorm2x16Case (Context& context, glu::ShaderType shaderType, glu::Precision precision)
: ShaderPackingFunctionCase (context, (string("packunorm2x16") + getPrecisionPostfix(precision) + getShaderTypePostfix(shaderType)).c_str(), "packUnorm2x16", shaderType)
, m_precision (precision)
{
m_spec.inputs.push_back(Symbol("in0", glu::VarType(glu::TYPE_FLOAT_VEC2, precision)));
m_spec.outputs.push_back(Symbol("out0", glu::VarType(glu::TYPE_UINT, glu::PRECISION_HIGHP)));
m_spec.source = "out0 = packUnorm2x16(in0);";
}
IterateResult iterate (void)
{
de::Random rnd (deStringHash(getName()) ^ 0x776002);
std::vector<tcu::Vec2> inputs;
std::vector<deUint32> outputs;
const int maxDiff = m_precision == glu::PRECISION_HIGHP ? 1 : // Rounding only.
m_precision == glu::PRECISION_MEDIUMP ? 65 : // (2^-10) * (2^16) + 1
m_precision == glu::PRECISION_LOWP ? 257 : 0; // (2^-8) * (2^16) + 1
// Special values to check.
inputs.push_back(tcu::Vec2(0.0f, 0.0f));
inputs.push_back(tcu::Vec2(0.5f, 1.0f));
inputs.push_back(tcu::Vec2(1.0f, 0.5f));
inputs.push_back(tcu::Vec2(-0.5f, 1.5f));
inputs.push_back(tcu::Vec2(0.25f, 0.75f));
// Random values, mostly in range.
for (int ndx = 0; ndx < 15; ndx++)
{
const float x = rnd.getFloat()*1.25f;
const float y = rnd.getFloat()*1.25f;
inputs.push_back(tcu::Vec2(x, y));
}
// Large random values.
for (int ndx = 0; ndx < 80; ndx++)
{
const float x = rnd.getFloat()*1e6f - 1e5f;
const float y = rnd.getFloat()*1e6f - 1e5f;
inputs.push_back(tcu::Vec2(x, y));
}
outputs.resize(inputs.size());
m_testCtx.getLog() << TestLog::Message << "Executing shader for " << inputs.size() << " input values" << tcu::TestLog::EndMessage;
{
const void* in = &inputs[0];
void* out = &outputs[0];
m_executor->useProgram();
m_executor->execute((int)inputs.size(), &in, &out);
}
// Verify
{
const int numValues = (int)inputs.size();
const int maxPrints = 10;
int numFailed = 0;
for (int valNdx = 0; valNdx < (int)inputs.size(); valNdx++)
{
const deUint16 ref0 = (deUint16)de::clamp(deRoundFloatToInt32(de::clamp(inputs[valNdx].x(), 0.0f, 1.0f) * 65535.0f), 0, (1<<16)-1);
const deUint16 ref1 = (deUint16)de::clamp(deRoundFloatToInt32(de::clamp(inputs[valNdx].y(), 0.0f, 1.0f) * 65535.0f), 0, (1<<16)-1);
const deUint32 ref = (ref1 << 16) | ref0;
const deUint32 res = outputs[valNdx];
const deUint16 res0 = (deUint16)(res & 0xffff);
const deUint16 res1 = (deUint16)(res >> 16);
const int diff0 = de::abs((int)ref0 - (int)res0);
const int diff1 = de::abs((int)ref1 - (int)res1);
if (diff0 > maxDiff || diff1 > maxDiff)
{
if (numFailed < maxPrints)
{
m_testCtx.getLog() << TestLog::Message << "ERROR: Mismatch in value " << valNdx
<< ", expected packUnorm2x16(" << inputs[valNdx] << ") = " << tcu::toHex(ref)
<< ", got " << tcu::toHex(res)
<< "\n diffs = (" << diff0 << ", " << diff1 << "), max diff = " << maxDiff
<< TestLog::EndMessage;
}
else if (numFailed == maxPrints)
m_testCtx.getLog() << TestLog::Message << "..." << TestLog::EndMessage;
numFailed += 1;
}
}
m_testCtx.getLog() << TestLog::Message << (numValues - numFailed) << " / " << numValues << " values passed" << TestLog::EndMessage;
m_testCtx.setTestResult(numFailed == 0 ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL,
numFailed == 0 ? "Pass" : "Result comparison failed");
}
return STOP;
}
private:
glu::Precision m_precision;
};
class UnpackUnorm2x16Case : public ShaderPackingFunctionCase
{
public:
UnpackUnorm2x16Case (Context& context, glu::ShaderType shaderType)
: ShaderPackingFunctionCase(context, (string("unpackunorm2x16") + getShaderTypePostfix(shaderType)).c_str(), "unpackUnorm2x16", shaderType)
{
m_spec.inputs.push_back(Symbol("in0", glu::VarType(glu::TYPE_UINT, glu::PRECISION_HIGHP)));
m_spec.outputs.push_back(Symbol("out0", glu::VarType(glu::TYPE_FLOAT_VEC2, glu::PRECISION_HIGHP)));
m_spec.source = "out0 = unpackUnorm2x16(in0);";
}
IterateResult iterate (void)
{
const deUint32 maxDiff = 1; // Rounding error.
de::Random rnd (deStringHash(getName()) ^ 0x776002);
std::vector<deUint32> inputs;
std::vector<tcu::Vec2> outputs;
inputs.push_back(0x00000000u);
inputs.push_back(0x7fff8000u);
inputs.push_back(0x80007fffu);
inputs.push_back(0xffffffffu);
inputs.push_back(0x0001fffeu);
// Random values.
for (int ndx = 0; ndx < 95; ndx++)
inputs.push_back(rnd.getUint32());
outputs.resize(inputs.size());
m_testCtx.getLog() << TestLog::Message << "Executing shader for " << inputs.size() << " input values" << tcu::TestLog::EndMessage;
{
const void* in = &inputs[0];
void* out = &outputs[0];
m_executor->useProgram();
m_executor->execute((int)inputs.size(), &in, &out);
}
// Verify
{
const int numValues = (int)inputs.size();
const int maxPrints = 10;
int numFailed = 0;
for (int valNdx = 0; valNdx < (int)inputs.size(); valNdx++)
{
const deUint16 in0 = (deUint16)(inputs[valNdx] & 0xffff);
const deUint16 in1 = (deUint16)(inputs[valNdx] >> 16);
const float ref0 = float(in0) / 65535.0f;
const float ref1 = float(in1) / 65535.0f;
const float res0 = outputs[valNdx].x();
const float res1 = outputs[valNdx].y();
const deUint32 diff0 = getUlpDiff(ref0, res0);
const deUint32 diff1 = getUlpDiff(ref1, res1);
if (diff0 > maxDiff || diff1 > maxDiff)
{
if (numFailed < maxPrints)
{
m_testCtx.getLog() << TestLog::Message << "ERROR: Mismatch in value " << valNdx << ",\n"
<< " expected unpackUnorm2x16(" << tcu::toHex(inputs[valNdx]) << ") = "
<< "vec2(" << HexFloat(ref0) << ", " << HexFloat(ref1) << ")"
<< ", got vec2(" << HexFloat(res0) << ", " << HexFloat(res1) << ")"
<< "\n ULP diffs = (" << diff0 << ", " << diff1 << "), max diff = " << maxDiff
<< TestLog::EndMessage;
}
else if (numFailed == maxPrints)
m_testCtx.getLog() << TestLog::Message << "..." << TestLog::EndMessage;
numFailed += 1;
}
}
m_testCtx.getLog() << TestLog::Message << (numValues - numFailed) << " / " << numValues << " values passed" << TestLog::EndMessage;
m_testCtx.setTestResult(numFailed == 0 ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL,
numFailed == 0 ? "Pass" : "Result comparison failed");
}
return STOP;
}
};
class PackHalf2x16Case : public ShaderPackingFunctionCase
{
public:
PackHalf2x16Case (Context& context, glu::ShaderType shaderType)
: ShaderPackingFunctionCase(context, (string("packhalf2x16") + getShaderTypePostfix(shaderType)).c_str(), "packHalf2x16", shaderType)
{
m_spec.inputs.push_back(Symbol("in0", glu::VarType(glu::TYPE_FLOAT_VEC2, glu::PRECISION_HIGHP)));
m_spec.outputs.push_back(Symbol("out0", glu::VarType(glu::TYPE_UINT, glu::PRECISION_HIGHP)));
m_spec.source = "out0 = packHalf2x16(in0);";
}
IterateResult iterate (void)
{
const int maxDiff = 0; // Values can be represented exactly in mediump.
de::Random rnd (deStringHash(getName()) ^ 0x776002);
std::vector<tcu::Vec2> inputs;
std::vector<deUint32> outputs;
// Special values to check.
inputs.push_back(tcu::Vec2(0.0f, 0.0f));
inputs.push_back(tcu::Vec2(0.5f, 1.0f));
inputs.push_back(tcu::Vec2(1.0f, 0.5f));
inputs.push_back(tcu::Vec2(-0.5f, 1.5f));
inputs.push_back(tcu::Vec2(0.25f, 0.75f));
// Random values.
{
const int minExp = -14;
const int maxExp = 15;
for (int ndx = 0; ndx < 95; ndx++)
{
tcu::Vec2 v;
for (int c = 0; c < 2; c++)
{
const int s = rnd.getBool() ? 1 : -1;
const int exp = rnd.getInt(minExp, maxExp);
const deUint32 mantissa = rnd.getUint32() & ((1<<23)-1);
v[c] = tcu::Float32::construct(s, exp ? exp : 1 /* avoid denormals */, (1u<<23) | mantissa).asFloat();
}
inputs.push_back(v);
}
}
// Convert input values to fp16 and back to make sure they can be represented exactly in mediump.
for (std::vector<tcu::Vec2>::iterator inVal = inputs.begin(); inVal != inputs.end(); ++inVal)
*inVal = tcu::Vec2(tcu::Float16(inVal->x()).asFloat(), tcu::Float16(inVal->y()).asFloat());
outputs.resize(inputs.size());
m_testCtx.getLog() << TestLog::Message << "Executing shader for " << inputs.size() << " input values" << tcu::TestLog::EndMessage;
{
const void* in = &inputs[0];
void* out = &outputs[0];
m_executor->useProgram();
m_executor->execute((int)inputs.size(), &in, &out);
}
// Verify
{
const int numValues = (int)inputs.size();
const int maxPrints = 10;
int numFailed = 0;
for (int valNdx = 0; valNdx < (int)inputs.size(); valNdx++)
{
const deUint16 ref0 = (deUint16)tcu::Float16(inputs[valNdx].x()).bits();
const deUint16 ref1 = (deUint16)tcu::Float16(inputs[valNdx].y()).bits();
const deUint32 ref = (ref1 << 16) | ref0;
const deUint32 res = outputs[valNdx];
const deUint16 res0 = (deUint16)(res & 0xffff);
const deUint16 res1 = (deUint16)(res >> 16);
const int diff0 = de::abs((int)ref0 - (int)res0);
const int diff1 = de::abs((int)ref1 - (int)res1);
if (diff0 > maxDiff || diff1 > maxDiff)
{
if (numFailed < maxPrints)
{
m_testCtx.getLog() << TestLog::Message << "ERROR: Mismatch in value " << valNdx
<< ", expected packHalf2x16(" << inputs[valNdx] << ") = " << tcu::toHex(ref)
<< ", got " << tcu::toHex(res)
<< "\n diffs = (" << diff0 << ", " << diff1 << "), max diff = " << maxDiff
<< TestLog::EndMessage;
}
else if (numFailed == maxPrints)
m_testCtx.getLog() << TestLog::Message << "..." << TestLog::EndMessage;
numFailed += 1;
}
}
m_testCtx.getLog() << TestLog::Message << (numValues - numFailed) << " / " << numValues << " values passed" << TestLog::EndMessage;
m_testCtx.setTestResult(numFailed == 0 ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL,
numFailed == 0 ? "Pass" : "Result comparison failed");
}
return STOP;
}
};
class UnpackHalf2x16Case : public ShaderPackingFunctionCase
{
public:
UnpackHalf2x16Case (Context& context, glu::ShaderType shaderType)
: ShaderPackingFunctionCase(context, (string("unpackhalf2x16") + getShaderTypePostfix(shaderType)).c_str(), "unpackHalf2x16", shaderType)
{
m_spec.inputs.push_back(Symbol("in0", glu::VarType(glu::TYPE_UINT, glu::PRECISION_HIGHP)));
m_spec.outputs.push_back(Symbol("out0", glu::VarType(glu::TYPE_FLOAT_VEC2, glu::PRECISION_MEDIUMP)));
m_spec.source = "out0 = unpackHalf2x16(in0);";
}
IterateResult iterate (void)
{
const int maxDiff = 0; // All bits must be accurate.
de::Random rnd (deStringHash(getName()) ^ 0x776002);
std::vector<deUint32> inputs;
std::vector<tcu::Vec2> outputs;
// Special values.
inputs.push_back((tcu::Float16( 0.0f).bits() << 16) | tcu::Float16( 1.0f).bits());
inputs.push_back((tcu::Float16( 1.0f).bits() << 16) | tcu::Float16( 0.0f).bits());
inputs.push_back((tcu::Float16(-1.0f).bits() << 16) | tcu::Float16( 0.5f).bits());
inputs.push_back((tcu::Float16( 0.5f).bits() << 16) | tcu::Float16(-0.5f).bits());
// Construct random values.
{
const int minExp = -14;
const int maxExp = 15;
const int mantBits = 10;
for (int ndx = 0; ndx < 96; ndx++)
{
deUint32 inVal = 0;
for (int c = 0; c < 2; c++)
{
const int s = rnd.getBool() ? 1 : -1;
const int exp = rnd.getInt(minExp, maxExp);
const deUint32 mantissa = rnd.getUint32() & ((1<<mantBits)-1);
const deUint16 value = tcu::Float16::construct(s, exp ? exp : 1 /* avoid denorm */, (1u<<10) | mantissa).bits();
inVal |= value << (16*c);
}
inputs.push_back(inVal);
}
}
outputs.resize(inputs.size());
m_testCtx.getLog() << TestLog::Message << "Executing shader for " << inputs.size() << " input values" << tcu::TestLog::EndMessage;
{
const void* in = &inputs[0];
void* out = &outputs[0];
m_executor->useProgram();
m_executor->execute((int)inputs.size(), &in, &out);
}
// Verify
{
const int numValues = (int)inputs.size();
const int maxPrints = 10;
int numFailed = 0;
for (int valNdx = 0; valNdx < (int)inputs.size(); valNdx++)
{
const deUint16 in0 = (deUint16)(inputs[valNdx] & 0xffff);
const deUint16 in1 = (deUint16)(inputs[valNdx] >> 16);
const float ref0 = tcu::Float16(in0).asFloat();
const float ref1 = tcu::Float16(in1).asFloat();
const float res0 = outputs[valNdx].x();
const float res1 = outputs[valNdx].y();
const deUint32 refBits0 = tcu::Float32(ref0).bits();
const deUint32 refBits1 = tcu::Float32(ref1).bits();
const deUint32 resBits0 = tcu::Float32(res0).bits();
const deUint32 resBits1 = tcu::Float32(res1).bits();
const int diff0 = de::abs((int)refBits0 - (int)resBits0);
const int diff1 = de::abs((int)refBits1 - (int)resBits1);
if (diff0 > maxDiff || diff1 > maxDiff)
{
if (numFailed < maxPrints)
{
m_testCtx.getLog() << TestLog::Message << "ERROR: Mismatch in value " << valNdx << ",\n"
<< " expected unpackHalf2x16(" << tcu::toHex(inputs[valNdx]) << ") = "
<< "vec2(" << ref0 << " / " << tcu::toHex(refBits0) << ", " << ref1 << " / " << tcu::toHex(refBits1) << ")"
<< ", got vec2(" << res0 << " / " << tcu::toHex(resBits0) << ", " << res1 << " / " << tcu::toHex(resBits1) << ")"
<< "\n ULP diffs = (" << diff0 << ", " << diff1 << "), max diff = " << maxDiff
<< TestLog::EndMessage;
}
else if (numFailed == maxPrints)
m_testCtx.getLog() << TestLog::Message << "..." << TestLog::EndMessage;
numFailed += 1;
}
}
m_testCtx.getLog() << TestLog::Message << (numValues - numFailed) << " / " << numValues << " values passed" << TestLog::EndMessage;
m_testCtx.setTestResult(numFailed == 0 ? QP_TEST_RESULT_PASS : QP_TEST_RESULT_FAIL,
numFailed == 0 ? "Pass" : "Result comparison failed");
}
return STOP;
}
};
ShaderPackingFunctionTests::ShaderPackingFunctionTests (Context& context)
: TestCaseGroup(context, "pack_unpack", "Floating-point pack and unpack function tests")
{
}
ShaderPackingFunctionTests::~ShaderPackingFunctionTests (void)
{
}
void ShaderPackingFunctionTests::init (void)
{
addChild(new PackSnorm2x16Case (m_context, glu::SHADERTYPE_VERTEX, glu::PRECISION_LOWP));
addChild(new PackSnorm2x16Case (m_context, glu::SHADERTYPE_FRAGMENT, glu::PRECISION_LOWP));
addChild(new PackSnorm2x16Case (m_context, glu::SHADERTYPE_VERTEX, glu::PRECISION_MEDIUMP));
addChild(new PackSnorm2x16Case (m_context, glu::SHADERTYPE_FRAGMENT, glu::PRECISION_MEDIUMP));
addChild(new PackSnorm2x16Case (m_context, glu::SHADERTYPE_VERTEX, glu::PRECISION_HIGHP));
addChild(new PackSnorm2x16Case (m_context, glu::SHADERTYPE_FRAGMENT, glu::PRECISION_HIGHP));
addChild(new UnpackSnorm2x16Case(m_context, glu::SHADERTYPE_VERTEX));
addChild(new UnpackSnorm2x16Case(m_context, glu::SHADERTYPE_FRAGMENT));
addChild(new PackUnorm2x16Case (m_context, glu::SHADERTYPE_VERTEX, glu::PRECISION_LOWP));
addChild(new PackUnorm2x16Case (m_context, glu::SHADERTYPE_FRAGMENT, glu::PRECISION_LOWP));
addChild(new PackUnorm2x16Case (m_context, glu::SHADERTYPE_VERTEX, glu::PRECISION_MEDIUMP));
addChild(new PackUnorm2x16Case (m_context, glu::SHADERTYPE_FRAGMENT, glu::PRECISION_MEDIUMP));
addChild(new PackUnorm2x16Case (m_context, glu::SHADERTYPE_VERTEX, glu::PRECISION_HIGHP));
addChild(new PackUnorm2x16Case (m_context, glu::SHADERTYPE_FRAGMENT, glu::PRECISION_HIGHP));
addChild(new UnpackUnorm2x16Case(m_context, glu::SHADERTYPE_VERTEX));
addChild(new UnpackUnorm2x16Case(m_context, glu::SHADERTYPE_FRAGMENT));
addChild(new PackHalf2x16Case (m_context, glu::SHADERTYPE_VERTEX));
addChild(new PackHalf2x16Case (m_context, glu::SHADERTYPE_FRAGMENT));
addChild(new UnpackHalf2x16Case (m_context, glu::SHADERTYPE_VERTEX));
addChild(new UnpackHalf2x16Case (m_context, glu::SHADERTYPE_FRAGMENT));
}
} // Functional
} // gles3
} // deqp