// Copyright 2016 The SwiftShader Authors. All Rights Reserved.
//
// 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.
#include "VertexRoutine.hpp"
#include "VertexShader.hpp"
#include "Constants.hpp"
#include "Renderer/Vertex.hpp"
#include "Renderer/Renderer.hpp"
#include "Common/Half.hpp"
#include "Common/Debug.hpp"
namespace sw
{
extern bool halfIntegerCoordinates; // Pixel centers are not at integer coordinates
extern bool symmetricNormalizedDepth; // [-1, 1] instead of [0, 1]
VertexRoutine::VertexRoutine(const VertexProcessor::State &state, const VertexShader *shader)
: v(shader && shader->indirectAddressableInput),
o(shader && shader->indirectAddressableOutput),
state(state)
{
}
VertexRoutine::~VertexRoutine()
{
}
void VertexRoutine::generate()
{
const bool textureSampling = state.textureSampling;
Pointer<Byte> cache = task + OFFSET(VertexTask,vertexCache);
Pointer<Byte> vertexCache = cache + OFFSET(VertexCache,vertex);
Pointer<Byte> tagCache = cache + OFFSET(VertexCache,tag);
UInt vertexCount = *Pointer<UInt>(task + OFFSET(VertexTask,vertexCount));
UInt primitiveNumber = *Pointer<UInt>(task + OFFSET(VertexTask, primitiveStart));
UInt indexInPrimitive = 0;
constants = *Pointer<Pointer<Byte>>(data + OFFSET(DrawData,constants));
Do
{
UInt index = *Pointer<UInt>(batch);
UInt tagIndex = index & 0x0000003C;
UInt indexQ = !textureSampling ? UInt(index & 0xFFFFFFFC) : index; // FIXME: TEXLDL hack to have independent LODs, hurts performance.
If(*Pointer<UInt>(tagCache + tagIndex) != indexQ)
{
*Pointer<UInt>(tagCache + tagIndex) = indexQ;
readInput(indexQ);
pipeline(indexQ);
postTransform();
computeClipFlags();
Pointer<Byte> cacheLine0 = vertexCache + tagIndex * UInt((int)sizeof(Vertex));
writeCache(cacheLine0);
}
UInt cacheIndex = index & 0x0000003F;
Pointer<Byte> cacheLine = vertexCache + cacheIndex * UInt((int)sizeof(Vertex));
writeVertex(vertex, cacheLine);
if(state.transformFeedbackEnabled != 0)
{
transformFeedback(vertex, primitiveNumber, indexInPrimitive);
indexInPrimitive++;
If(indexInPrimitive == 3)
{
primitiveNumber++;
indexInPrimitive = 0;
}
}
vertex += sizeof(Vertex);
batch += sizeof(unsigned int);
vertexCount--;
}
Until(vertexCount == 0)
Return();
}
void VertexRoutine::readInput(UInt &index)
{
for(int i = 0; i < MAX_VERTEX_INPUTS; i++)
{
Pointer<Byte> input = *Pointer<Pointer<Byte>>(data + OFFSET(DrawData,input) + sizeof(void*) * i);
UInt stride = *Pointer<UInt>(data + OFFSET(DrawData,stride) + sizeof(unsigned int) * i);
v[i] = readStream(input, stride, state.input[i], index);
}
}
void VertexRoutine::computeClipFlags()
{
int pos = state.positionRegister;
Int4 maxX = CmpLT(o[pos].w, o[pos].x);
Int4 maxY = CmpLT(o[pos].w, o[pos].y);
Int4 maxZ = CmpLT(o[pos].w, o[pos].z);
Int4 minX = CmpNLE(-o[pos].w, o[pos].x);
Int4 minY = CmpNLE(-o[pos].w, o[pos].y);
Int4 minZ = symmetricNormalizedDepth ? CmpNLE(-o[pos].w, o[pos].z) : CmpNLE(Float4(0.0f), o[pos].z);
clipFlags = *Pointer<Int>(constants + OFFSET(Constants,maxX) + SignMask(maxX) * 4); // FIXME: Array indexing
clipFlags |= *Pointer<Int>(constants + OFFSET(Constants,maxY) + SignMask(maxY) * 4);
clipFlags |= *Pointer<Int>(constants + OFFSET(Constants,maxZ) + SignMask(maxZ) * 4);
clipFlags |= *Pointer<Int>(constants + OFFSET(Constants,minX) + SignMask(minX) * 4);
clipFlags |= *Pointer<Int>(constants + OFFSET(Constants,minY) + SignMask(minY) * 4);
clipFlags |= *Pointer<Int>(constants + OFFSET(Constants,minZ) + SignMask(minZ) * 4);
Int4 finiteX = CmpLE(Abs(o[pos].x), *Pointer<Float4>(constants + OFFSET(Constants,maxPos)));
Int4 finiteY = CmpLE(Abs(o[pos].y), *Pointer<Float4>(constants + OFFSET(Constants,maxPos)));
Int4 finiteZ = CmpLE(Abs(o[pos].z), *Pointer<Float4>(constants + OFFSET(Constants,maxPos)));
Int4 finiteXYZ = finiteX & finiteY & finiteZ;
clipFlags |= *Pointer<Int>(constants + OFFSET(Constants,fini) + SignMask(finiteXYZ) * 4);
if(state.preTransformed)
{
clipFlags &= 0xFBFBFBFB; // Don't clip against far clip plane
}
}
Vector4f VertexRoutine::readStream(Pointer<Byte> &buffer, UInt &stride, const Stream &stream, const UInt &index)
{
const bool textureSampling = state.textureSampling;
Vector4f v;
Pointer<Byte> source0 = buffer + index * stride;
Pointer<Byte> source1 = source0 + (!textureSampling ? stride : 0);
Pointer<Byte> source2 = source1 + (!textureSampling ? stride : 0);
Pointer<Byte> source3 = source2 + (!textureSampling ? stride : 0);
bool isNativeFloatAttrib = (stream.attribType == VertexShader::ATTRIBTYPE_FLOAT) || stream.normalized;
switch(stream.type)
{
case STREAMTYPE_FLOAT:
{
if(stream.count == 0)
{
// Null stream, all default components
}
else
{
if(stream.count == 1)
{
v.x.x = *Pointer<Float>(source0);
v.x.y = *Pointer<Float>(source1);
v.x.z = *Pointer<Float>(source2);
v.x.w = *Pointer<Float>(source3);
}
else
{
v.x = *Pointer<Float4>(source0);
v.y = *Pointer<Float4>(source1);
v.z = *Pointer<Float4>(source2);
v.w = *Pointer<Float4>(source3);
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
switch(stream.attribType)
{
case VertexShader::ATTRIBTYPE_INT:
if(stream.count >= 1) v.x = As<Float4>(Int4(v.x));
if(stream.count >= 2) v.x = As<Float4>(Int4(v.y));
if(stream.count >= 3) v.x = As<Float4>(Int4(v.z));
if(stream.count >= 4) v.x = As<Float4>(Int4(v.w));
break;
case VertexShader::ATTRIBTYPE_UINT:
if(stream.count >= 1) v.x = As<Float4>(UInt4(v.x));
if(stream.count >= 2) v.x = As<Float4>(UInt4(v.y));
if(stream.count >= 3) v.x = As<Float4>(UInt4(v.z));
if(stream.count >= 4) v.x = As<Float4>(UInt4(v.w));
break;
default:
break;
}
}
}
break;
case STREAMTYPE_BYTE:
if(isNativeFloatAttrib) // Stream: UByte, Shader attrib: Float
{
v.x = Float4(*Pointer<Byte4>(source0));
v.y = Float4(*Pointer<Byte4>(source1));
v.z = Float4(*Pointer<Byte4>(source2));
v.w = Float4(*Pointer<Byte4>(source3));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
if(stream.normalized)
{
if(stream.count >= 1) v.x *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
if(stream.count >= 2) v.y *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
if(stream.count >= 3) v.z *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
if(stream.count >= 4) v.w *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
}
}
else // Stream: UByte, Shader attrib: Int / UInt
{
v.x = As<Float4>(Int4(*Pointer<Byte4>(source0)));
v.y = As<Float4>(Int4(*Pointer<Byte4>(source1)));
v.z = As<Float4>(Int4(*Pointer<Byte4>(source2)));
v.w = As<Float4>(Int4(*Pointer<Byte4>(source3)));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
break;
case STREAMTYPE_SBYTE:
if(isNativeFloatAttrib) // Stream: SByte, Shader attrib: Float
{
v.x = Float4(*Pointer<SByte4>(source0));
v.y = Float4(*Pointer<SByte4>(source1));
v.z = Float4(*Pointer<SByte4>(source2));
v.w = Float4(*Pointer<SByte4>(source3));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
if(stream.normalized)
{
if(stream.count >= 1) v.x *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleSByte));
if(stream.count >= 2) v.y *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleSByte));
if(stream.count >= 3) v.z *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleSByte));
if(stream.count >= 4) v.w *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleSByte));
}
}
else // Stream: SByte, Shader attrib: Int / UInt
{
v.x = As<Float4>(Int4(*Pointer<SByte4>(source0)));
v.y = As<Float4>(Int4(*Pointer<SByte4>(source1)));
v.z = As<Float4>(Int4(*Pointer<SByte4>(source2)));
v.w = As<Float4>(Int4(*Pointer<SByte4>(source3)));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
break;
case STREAMTYPE_COLOR:
{
v.x = Float4(*Pointer<Byte4>(source0)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
v.y = Float4(*Pointer<Byte4>(source1)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
v.z = Float4(*Pointer<Byte4>(source2)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
v.w = Float4(*Pointer<Byte4>(source3)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleByte));
transpose4x4(v.x, v.y, v.z, v.w);
// Swap red and blue
Float4 t = v.x;
v.x = v.z;
v.z = t;
}
break;
case STREAMTYPE_SHORT:
if(isNativeFloatAttrib) // Stream: Int, Shader attrib: Float
{
v.x = Float4(*Pointer<Short4>(source0));
v.y = Float4(*Pointer<Short4>(source1));
v.z = Float4(*Pointer<Short4>(source2));
v.w = Float4(*Pointer<Short4>(source3));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
if(stream.normalized)
{
if(stream.count >= 1) v.x *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleShort));
if(stream.count >= 2) v.y *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleShort));
if(stream.count >= 3) v.z *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleShort));
if(stream.count >= 4) v.w *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleShort));
}
}
else // Stream: Short, Shader attrib: Int/UInt, no type conversion
{
v.x = As<Float4>(Int4(*Pointer<Short4>(source0)));
v.y = As<Float4>(Int4(*Pointer<Short4>(source1)));
v.z = As<Float4>(Int4(*Pointer<Short4>(source2)));
v.w = As<Float4>(Int4(*Pointer<Short4>(source3)));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
break;
case STREAMTYPE_USHORT:
if(isNativeFloatAttrib) // Stream: Int, Shader attrib: Float
{
v.x = Float4(*Pointer<UShort4>(source0));
v.y = Float4(*Pointer<UShort4>(source1));
v.z = Float4(*Pointer<UShort4>(source2));
v.w = Float4(*Pointer<UShort4>(source3));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
if(stream.normalized)
{
if(stream.count >= 1) v.x *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleUShort));
if(stream.count >= 2) v.y *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleUShort));
if(stream.count >= 3) v.z *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleUShort));
if(stream.count >= 4) v.w *= *Pointer<Float4>(constants + OFFSET(Constants,unscaleUShort));
}
}
else // Stream: UShort, Shader attrib: Int/UInt, no type conversion
{
v.x = As<Float4>(Int4(*Pointer<UShort4>(source0)));
v.y = As<Float4>(Int4(*Pointer<UShort4>(source1)));
v.z = As<Float4>(Int4(*Pointer<UShort4>(source2)));
v.w = As<Float4>(Int4(*Pointer<UShort4>(source3)));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
break;
case STREAMTYPE_INT:
if(isNativeFloatAttrib) // Stream: Int, Shader attrib: Float
{
v.x = Float4(*Pointer<Int4>(source0));
v.y = Float4(*Pointer<Int4>(source1));
v.z = Float4(*Pointer<Int4>(source2));
v.w = Float4(*Pointer<Int4>(source3));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
if(stream.normalized)
{
if(stream.count >= 1) v.x *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleInt));
if(stream.count >= 2) v.y *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleInt));
if(stream.count >= 3) v.z *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleInt));
if(stream.count >= 4) v.w *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleInt));
}
}
else // Stream: Int, Shader attrib: Int/UInt, no type conversion
{
v.x = *Pointer<Float4>(source0);
v.y = *Pointer<Float4>(source1);
v.z = *Pointer<Float4>(source2);
v.w = *Pointer<Float4>(source3);
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
break;
case STREAMTYPE_UINT:
if(isNativeFloatAttrib) // Stream: UInt, Shader attrib: Float
{
v.x = Float4(*Pointer<UInt4>(source0));
v.y = Float4(*Pointer<UInt4>(source1));
v.z = Float4(*Pointer<UInt4>(source2));
v.w = Float4(*Pointer<UInt4>(source3));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
if(stream.normalized)
{
if(stream.count >= 1) v.x *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleUInt));
if(stream.count >= 2) v.y *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleUInt));
if(stream.count >= 3) v.z *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleUInt));
if(stream.count >= 4) v.w *= *Pointer<Float4>(constants + OFFSET(Constants, unscaleUInt));
}
}
else // Stream: UInt, Shader attrib: Int/UInt, no type conversion
{
v.x = *Pointer<Float4>(source0);
v.y = *Pointer<Float4>(source1);
v.z = *Pointer<Float4>(source2);
v.w = *Pointer<Float4>(source3);
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
break;
case STREAMTYPE_UDEC3:
{
// FIXME: Vectorize
{
Int x, y, z;
x = y = z = *Pointer<Int>(source0);
v.x.x = Float(x & 0x000003FF);
v.x.y = Float(y & 0x000FFC00);
v.x.z = Float(z & 0x3FF00000);
}
{
Int x, y, z;
x = y = z = *Pointer<Int>(source1);
v.y.x = Float(x & 0x000003FF);
v.y.y = Float(y & 0x000FFC00);
v.y.z = Float(z & 0x3FF00000);
}
{
Int x, y, z;
x = y = z = *Pointer<Int>(source2);
v.z.x = Float(x & 0x000003FF);
v.z.y = Float(y & 0x000FFC00);
v.z.z = Float(z & 0x3FF00000);
}
{
Int x, y, z;
x = y = z = *Pointer<Int>(source3);
v.w.x = Float(x & 0x000003FF);
v.w.y = Float(y & 0x000FFC00);
v.w.z = Float(z & 0x3FF00000);
}
transpose4x3(v.x, v.y, v.z, v.w);
v.y *= Float4(1.0f / 0x00000400);
v.z *= Float4(1.0f / 0x00100000);
}
break;
case STREAMTYPE_DEC3N:
{
// FIXME: Vectorize
{
Int x, y, z;
x = y = z = *Pointer<Int>(source0);
v.x.x = Float((x << 22) & 0xFFC00000);
v.x.y = Float((y << 12) & 0xFFC00000);
v.x.z = Float((z << 2) & 0xFFC00000);
}
{
Int x, y, z;
x = y = z = *Pointer<Int>(source1);
v.y.x = Float((x << 22) & 0xFFC00000);
v.y.y = Float((y << 12) & 0xFFC00000);
v.y.z = Float((z << 2) & 0xFFC00000);
}
{
Int x, y, z;
x = y = z = *Pointer<Int>(source2);
v.z.x = Float((x << 22) & 0xFFC00000);
v.z.y = Float((y << 12) & 0xFFC00000);
v.z.z = Float((z << 2) & 0xFFC00000);
}
{
Int x, y, z;
x = y = z = *Pointer<Int>(source3);
v.w.x = Float((x << 22) & 0xFFC00000);
v.w.y = Float((y << 12) & 0xFFC00000);
v.w.z = Float((z << 2) & 0xFFC00000);
}
transpose4x3(v.x, v.y, v.z, v.w);
v.x *= Float4(1.0f / 0x00400000 / 511.0f);
v.y *= Float4(1.0f / 0x00400000 / 511.0f);
v.z *= Float4(1.0f / 0x00400000 / 511.0f);
}
break;
case STREAMTYPE_FIXED:
{
v.x = Float4(*Pointer<Int4>(source0)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleFixed));
v.y = Float4(*Pointer<Int4>(source1)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleFixed));
v.z = Float4(*Pointer<Int4>(source2)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleFixed));
v.w = Float4(*Pointer<Int4>(source3)) * *Pointer<Float4>(constants + OFFSET(Constants,unscaleFixed));
transpose4xN(v.x, v.y, v.z, v.w, stream.count);
}
break;
case STREAMTYPE_HALF:
{
if(stream.count >= 1)
{
UShort x0 = *Pointer<UShort>(source0 + 0);
UShort x1 = *Pointer<UShort>(source1 + 0);
UShort x2 = *Pointer<UShort>(source2 + 0);
UShort x3 = *Pointer<UShort>(source3 + 0);
v.x.x = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(x0) * 4);
v.x.y = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(x1) * 4);
v.x.z = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(x2) * 4);
v.x.w = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(x3) * 4);
}
if(stream.count >= 2)
{
UShort y0 = *Pointer<UShort>(source0 + 2);
UShort y1 = *Pointer<UShort>(source1 + 2);
UShort y2 = *Pointer<UShort>(source2 + 2);
UShort y3 = *Pointer<UShort>(source3 + 2);
v.y.x = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(y0) * 4);
v.y.y = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(y1) * 4);
v.y.z = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(y2) * 4);
v.y.w = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(y3) * 4);
}
if(stream.count >= 3)
{
UShort z0 = *Pointer<UShort>(source0 + 4);
UShort z1 = *Pointer<UShort>(source1 + 4);
UShort z2 = *Pointer<UShort>(source2 + 4);
UShort z3 = *Pointer<UShort>(source3 + 4);
v.z.x = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(z0) * 4);
v.z.y = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(z1) * 4);
v.z.z = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(z2) * 4);
v.z.w = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(z3) * 4);
}
if(stream.count >= 4)
{
UShort w0 = *Pointer<UShort>(source0 + 6);
UShort w1 = *Pointer<UShort>(source1 + 6);
UShort w2 = *Pointer<UShort>(source2 + 6);
UShort w3 = *Pointer<UShort>(source3 + 6);
v.w.x = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(w0) * 4);
v.w.y = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(w1) * 4);
v.w.z = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(w2) * 4);
v.w.w = *Pointer<Float>(constants + OFFSET(Constants,half2float) + Int(w3) * 4);
}
}
break;
case STREAMTYPE_INDICES:
{
v.x.x = *Pointer<Float>(source0);
v.x.y = *Pointer<Float>(source1);
v.x.z = *Pointer<Float>(source2);
v.x.w = *Pointer<Float>(source3);
}
break;
case STREAMTYPE_2_10_10_10_INT:
{
Int4 src;
src = Insert(src, *Pointer<Int>(source0), 0);
src = Insert(src, *Pointer<Int>(source1), 1);
src = Insert(src, *Pointer<Int>(source2), 2);
src = Insert(src, *Pointer<Int>(source3), 3);
v.x = Float4((src << 22) >> 22);
v.y = Float4((src << 12) >> 22);
v.z = Float4((src << 02) >> 22);
v.w = Float4(src >> 30);
if(stream.normalized)
{
v.x = Max(v.x * Float4(1.0f / 0x1FF), Float4(-1.0f));
v.y = Max(v.y * Float4(1.0f / 0x1FF), Float4(-1.0f));
v.z = Max(v.z * Float4(1.0f / 0x1FF), Float4(-1.0f));
v.w = Max(v.w, Float4(-1.0f));
}
}
break;
case STREAMTYPE_2_10_10_10_UINT:
{
Int4 src;
src = Insert(src, *Pointer<Int>(source0), 0);
src = Insert(src, *Pointer<Int>(source1), 1);
src = Insert(src, *Pointer<Int>(source2), 2);
src = Insert(src, *Pointer<Int>(source3), 3);
v.x = Float4(src & Int4(0x3FF));
v.y = Float4((src >> 10) & Int4(0x3FF));
v.z = Float4((src >> 20) & Int4(0x3FF));
v.w = Float4((src >> 30) & Int4(0x3));
if(stream.normalized)
{
v.x *= Float4(1.0f / 0x3FF);
v.y *= Float4(1.0f / 0x3FF);
v.z *= Float4(1.0f / 0x3FF);
v.w *= Float4(1.0f / 0x3);
}
}
break;
default:
ASSERT(false);
}
if(stream.count < 1) v.x = Float4(0.0f);
if(stream.count < 2) v.y = Float4(0.0f);
if(stream.count < 3) v.z = Float4(0.0f);
if(stream.count < 4) v.w = isNativeFloatAttrib ? As<Float4>(Float4(1.0f)) : As<Float4>(Int4(0));
return v;
}
void VertexRoutine::postTransform()
{
int pos = state.positionRegister;
// Backtransform
if(state.preTransformed)
{
Float4 rhw = Float4(1.0f) / o[pos].w;
Float4 W = *Pointer<Float4>(data + OFFSET(DrawData,Wx16)) * Float4(1.0f / 16.0f);
Float4 H = *Pointer<Float4>(data + OFFSET(DrawData,Hx16)) * Float4(1.0f / 16.0f);
Float4 L = *Pointer<Float4>(data + OFFSET(DrawData,X0x16)) * Float4(1.0f / 16.0f);
Float4 T = *Pointer<Float4>(data + OFFSET(DrawData,Y0x16)) * Float4(1.0f / 16.0f);
o[pos].x = (o[pos].x - L) / W * rhw;
o[pos].y = (o[pos].y - T) / H * rhw;
o[pos].z = o[pos].z * rhw;
o[pos].w = rhw;
}
if(!halfIntegerCoordinates && !state.preTransformed)
{
o[pos].x = o[pos].x + *Pointer<Float4>(data + OFFSET(DrawData,halfPixelX)) * o[pos].w;
o[pos].y = o[pos].y + *Pointer<Float4>(data + OFFSET(DrawData,halfPixelY)) * o[pos].w;
}
if(state.superSampling)
{
o[pos].x = o[pos].x + *Pointer<Float4>(data + OFFSET(DrawData,XXXX)) * o[pos].w;
o[pos].y = o[pos].y + *Pointer<Float4>(data + OFFSET(DrawData,YYYY)) * o[pos].w;
}
}
void VertexRoutine::writeCache(Pointer<Byte> &cacheLine)
{
Vector4f v;
for(int i = 0; i < MAX_VERTEX_OUTPUTS; i++)
{
if(state.output[i].write)
{
v.x = o[i].x;
v.y = o[i].y;
v.z = o[i].z;
v.w = o[i].w;
if(state.output[i].xClamp)
{
v.x = Max(v.x, Float4(0.0f));
v.x = Min(v.x, Float4(1.0f));
}
if(state.output[i].yClamp)
{
v.y = Max(v.y, Float4(0.0f));
v.y = Min(v.y, Float4(1.0f));
}
if(state.output[i].zClamp)
{
v.z = Max(v.z, Float4(0.0f));
v.z = Min(v.z, Float4(1.0f));
}
if(state.output[i].wClamp)
{
v.w = Max(v.w, Float4(0.0f));
v.w = Min(v.w, Float4(1.0f));
}
if(state.output[i].write == 0x01)
{
*Pointer<Float>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 0) = v.x.x;
*Pointer<Float>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 1) = v.x.y;
*Pointer<Float>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 2) = v.x.z;
*Pointer<Float>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 3) = v.x.w;
}
else
{
if(state.output[i].write == 0x03)
{
transpose2x4(v.x, v.y, v.z, v.w);
}
else
{
transpose4x4(v.x, v.y, v.z, v.w);
}
*Pointer<Float4>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 0, 16) = v.x;
*Pointer<Float4>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 1, 16) = v.y;
*Pointer<Float4>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 2, 16) = v.z;
*Pointer<Float4>(cacheLine + OFFSET(Vertex,v[i]) + sizeof(Vertex) * 3, 16) = v.w;
}
}
}
*Pointer<Int>(cacheLine + OFFSET(Vertex,clipFlags) + sizeof(Vertex) * 0) = (clipFlags >> 0) & 0x0000000FF;
*Pointer<Int>(cacheLine + OFFSET(Vertex,clipFlags) + sizeof(Vertex) * 1) = (clipFlags >> 8) & 0x0000000FF;
*Pointer<Int>(cacheLine + OFFSET(Vertex,clipFlags) + sizeof(Vertex) * 2) = (clipFlags >> 16) & 0x0000000FF;
*Pointer<Int>(cacheLine + OFFSET(Vertex,clipFlags) + sizeof(Vertex) * 3) = (clipFlags >> 24) & 0x0000000FF;
// Viewport transform
int pos = state.positionRegister;
v.x = o[pos].x;
v.y = o[pos].y;
v.z = o[pos].z;
v.w = o[pos].w;
if(symmetricNormalizedDepth)
{
v.z = (v.z + v.w) * Float4(0.5f); // [-1, 1] -> [0, 1]
}
Float4 w = As<Float4>(As<Int4>(v.w) | (As<Int4>(CmpEQ(v.w, Float4(0.0f))) & As<Int4>(Float4(1.0f))));
Float4 rhw = Float4(1.0f) / w;
v.x = As<Float4>(RoundInt(*Pointer<Float4>(data + OFFSET(DrawData,X0x16)) + v.x * rhw * *Pointer<Float4>(data + OFFSET(DrawData,Wx16))));
v.y = As<Float4>(RoundInt(*Pointer<Float4>(data + OFFSET(DrawData,Y0x16)) + v.y * rhw * *Pointer<Float4>(data + OFFSET(DrawData,Hx16))));
v.z = v.z * rhw;
v.w = rhw;
transpose4x4(v.x, v.y, v.z, v.w);
*Pointer<Float4>(cacheLine + OFFSET(Vertex,X) + sizeof(Vertex) * 0, 16) = v.x;
*Pointer<Float4>(cacheLine + OFFSET(Vertex,X) + sizeof(Vertex) * 1, 16) = v.y;
*Pointer<Float4>(cacheLine + OFFSET(Vertex,X) + sizeof(Vertex) * 2, 16) = v.z;
*Pointer<Float4>(cacheLine + OFFSET(Vertex,X) + sizeof(Vertex) * 3, 16) = v.w;
}
void VertexRoutine::writeVertex(const Pointer<Byte> &vertex, Pointer<Byte> &cache)
{
for(int i = 0; i < MAX_VERTEX_OUTPUTS; i++)
{
if(state.output[i].write)
{
*Pointer<Int4>(vertex + OFFSET(Vertex,v[i]), 16) = *Pointer<Int4>(cache + OFFSET(Vertex,v[i]), 16);
}
}
*Pointer<Int4>(vertex + OFFSET(Vertex,X)) = *Pointer<Int4>(cache + OFFSET(Vertex,X));
*Pointer<Int>(vertex + OFFSET(Vertex,clipFlags)) = *Pointer<Int>(cache + OFFSET(Vertex,clipFlags));
}
void VertexRoutine::transformFeedback(const Pointer<Byte> &vertex, const UInt &primitiveNumber, const UInt &indexInPrimitive)
{
If(indexInPrimitive < state.verticesPerPrimitive)
{
UInt tOffset = primitiveNumber * state.verticesPerPrimitive + indexInPrimitive;
for(int i = 0; i < MAX_TRANSFORM_FEEDBACK_INTERLEAVED_COMPONENTS; i++)
{
if(state.transformFeedbackEnabled & (1ULL << i))
{
UInt reg = *Pointer<UInt>(data + OFFSET(DrawData, vs.reg[i]));
UInt row = *Pointer<UInt>(data + OFFSET(DrawData, vs.row[i]));
UInt col = *Pointer<UInt>(data + OFFSET(DrawData, vs.col[i]));
UInt str = *Pointer<UInt>(data + OFFSET(DrawData, vs.str[i]));
Pointer<Byte> t = *Pointer<Pointer<Byte>>(data + OFFSET(DrawData, vs.t[i])) + (tOffset * str * sizeof(float));
Pointer<Byte> v = vertex + OFFSET(Vertex, v) + reg * sizeof(float);
For(UInt r = 0, r < row, r++)
{
UInt rOffsetX = r * col * sizeof(float);
UInt rOffset4 = r * sizeof(float4);
For(UInt c = 0, c < col, c++)
{
UInt cOffset = c * sizeof(float);
*Pointer<Float>(t + rOffsetX + cOffset) = *Pointer<Float>(v + rOffset4 + cOffset);
}
}
}
}
}
}
}