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android/platform/external/angle/18a44701a5/./src/libGLESv2/ProgramBinary.cpp
blob: a210ed1acf90288bb197e6e69d81643fc3787edb [file]
#include "precompiled.h"
//
// Copyright (c) 2002-2013 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Program.cpp: Implements the gl::Program class. Implements GL program objects
// and related functionality. [OpenGL ES 2.0.24] section 2.10.3 page 28.
#include "libGLESv2/BinaryStream.h"
#include "libGLESv2/ProgramBinary.h"
#include "libGLESv2/renderer/ShaderExecutable.h"
#include "common/debug.h"
#include "common/version.h"
#include "common/utilities.h"
#include "libGLESv2/main.h"
#include "libGLESv2/Shader.h"
#include "libGLESv2/Program.h"
#include "libGLESv2/renderer/Renderer.h"
#include "libGLESv2/renderer/VertexDataManager.h"
#include "libGLESv2/Context.h"
#include "libGLESv2/Buffer.h"
#include "compiler/HLSLLayoutEncoder.h"
#undef near
#undef far
namespace gl
{
std::string str(int i)
{
char buffer[20];
snprintf(buffer, sizeof(buffer), "%d", i);
return buffer;
}
std::string arrayString(int i)
{
return "[" + str(i) + "]";
}
std::string arrayString(unsigned int i)
{
return (i == GL_INVALID_INDEX ? "" : "[" + str(i) + "]");
}
namespace gl_d3d
{
std::string TypeString(GLenum type)
{
switch (type)
{
case GL_FLOAT: return "float";
case GL_FLOAT_VEC2: return "float2";
case GL_FLOAT_VEC3: return "float3";
case GL_FLOAT_VEC4: return "float4";
case GL_INT: return "int";
case GL_INT_VEC2: return "int2";
case GL_INT_VEC3: return "int3";
case GL_INT_VEC4: return "int4";
case GL_UNSIGNED_INT: return "uint";
case GL_UNSIGNED_INT_VEC2: return "uint2";
case GL_UNSIGNED_INT_VEC3: return "uint3";
case GL_UNSIGNED_INT_VEC4: return "uint4";
case GL_FLOAT_MAT2: return "float2x2";
case GL_FLOAT_MAT3: return "float3x3";
case GL_FLOAT_MAT4: return "float4x4";
case GL_FLOAT_MAT2x3: return "float2x3";
case GL_FLOAT_MAT3x2: return "float3x2";
case GL_FLOAT_MAT2x4: return "float2x4";
case GL_FLOAT_MAT4x2: return "float4x2";
case GL_FLOAT_MAT3x4: return "float3x4";
case GL_FLOAT_MAT4x3: return "float4x3";
default: UNREACHABLE(); return "invalid-gl-type";
}
}
}
namespace
{
unsigned int parseAndStripArrayIndex(std::string* name)
{
unsigned int subscript = GL_INVALID_INDEX;
// Strip any trailing array operator and retrieve the subscript
size_t open = name->find_last_of('[');
size_t close = name->find_last_of(']');
if (open != std::string::npos && close == name->length() - 1)
{
subscript = atoi(name->substr(open + 1).c_str());
name->erase(open);
}
return subscript;
}
}
VariableLocation::VariableLocation(const std::string &name, unsigned int element, unsigned int index)
: name(name), element(element), index(index)
{
}
unsigned int ProgramBinary::mCurrentSerial = 1;
ProgramBinary::ProgramBinary(rx::Renderer *renderer) : mRenderer(renderer), RefCountObject(0), mSerial(issueSerial())
{
mPixelExecutable = NULL;
mVertexExecutable = NULL;
mGeometryExecutable = NULL;
mValidated = false;
for (int index = 0; index < MAX_VERTEX_ATTRIBS; index++)
{
mSemanticIndex[index] = -1;
}
for (int index = 0; index < MAX_TEXTURE_IMAGE_UNITS; index++)
{
mSamplersPS[index].active = false;
}
for (int index = 0; index < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; index++)
{
mSamplersVS[index].active = false;
}
mUsedVertexSamplerRange = 0;
mUsedPixelSamplerRange = 0;
mUsesPointSize = false;
mShaderVersion = 100;
}
ProgramBinary::~ProgramBinary()
{
delete mPixelExecutable;
mPixelExecutable = NULL;
delete mVertexExecutable;
mVertexExecutable = NULL;
delete mGeometryExecutable;
mGeometryExecutable = NULL;
while (!mUniforms.empty())
{
delete mUniforms.back();
mUniforms.pop_back();
}
while (!mUniformBlocks.empty())
{
delete mUniformBlocks.back();
mUniformBlocks.pop_back();
}
}
unsigned int ProgramBinary::getSerial() const
{
return mSerial;
}
int ProgramBinary::getShaderVersion() const
{
return mShaderVersion;
}
unsigned int ProgramBinary::issueSerial()
{
return mCurrentSerial++;
}
rx::ShaderExecutable *ProgramBinary::getPixelExecutable()
{
return mPixelExecutable;
}
rx::ShaderExecutable *ProgramBinary::getVertexExecutable()
{
return mVertexExecutable;
}
rx::ShaderExecutable *ProgramBinary::getGeometryExecutable()
{
return mGeometryExecutable;
}
GLuint ProgramBinary::getAttributeLocation(const char *name)
{
if (name)
{
for (int index = 0; index < MAX_VERTEX_ATTRIBS; index++)
{
if (mLinkedAttribute[index].name == std::string(name))
{
return index;
}
}
}
return -1;
}
int ProgramBinary::getSemanticIndex(int attributeIndex)
{
ASSERT(attributeIndex >= 0 && attributeIndex < MAX_VERTEX_ATTRIBS);
return mSemanticIndex[attributeIndex];
}
// Returns one more than the highest sampler index used.
GLint ProgramBinary::getUsedSamplerRange(SamplerType type)
{
switch (type)
{
case SAMPLER_PIXEL:
return mUsedPixelSamplerRange;
case SAMPLER_VERTEX:
return mUsedVertexSamplerRange;
default:
UNREACHABLE();
return 0;
}
}
bool ProgramBinary::usesPointSize() const
{
return mUsesPointSize;
}
bool ProgramBinary::usesPointSpriteEmulation() const
{
return mUsesPointSize && mRenderer->getMajorShaderModel() >= 4;
}
bool ProgramBinary::usesGeometryShader() const
{
return usesPointSpriteEmulation();
}
// Returns the index of the texture image unit (0-19) corresponding to a Direct3D 9 sampler
// index (0-15 for the pixel shader and 0-3 for the vertex shader).
GLint ProgramBinary::getSamplerMapping(SamplerType type, unsigned int samplerIndex)
{
GLint logicalTextureUnit = -1;
switch (type)
{
case SAMPLER_PIXEL:
ASSERT(samplerIndex < sizeof(mSamplersPS)/sizeof(mSamplersPS[0]));
if (mSamplersPS[samplerIndex].active)
{
logicalTextureUnit = mSamplersPS[samplerIndex].logicalTextureUnit;
}
break;
case SAMPLER_VERTEX:
ASSERT(samplerIndex < sizeof(mSamplersVS)/sizeof(mSamplersVS[0]));
if (mSamplersVS[samplerIndex].active)
{
logicalTextureUnit = mSamplersVS[samplerIndex].logicalTextureUnit;
}
break;
default: UNREACHABLE();
}
if (logicalTextureUnit >= 0 && logicalTextureUnit < (GLint)mRenderer->getMaxCombinedTextureImageUnits())
{
return logicalTextureUnit;
}
return -1;
}
// Returns the texture type for a given Direct3D 9 sampler type and
// index (0-15 for the pixel shader and 0-3 for the vertex shader).
TextureType ProgramBinary::getSamplerTextureType(SamplerType type, unsigned int samplerIndex)
{
switch (type)
{
case SAMPLER_PIXEL:
ASSERT(samplerIndex < sizeof(mSamplersPS)/sizeof(mSamplersPS[0]));
ASSERT(mSamplersPS[samplerIndex].active);
return mSamplersPS[samplerIndex].textureType;
case SAMPLER_VERTEX:
ASSERT(samplerIndex < sizeof(mSamplersVS)/sizeof(mSamplersVS[0]));
ASSERT(mSamplersVS[samplerIndex].active);
return mSamplersVS[samplerIndex].textureType;
default: UNREACHABLE();
}
return TEXTURE_2D;
}
GLint ProgramBinary::getUniformLocation(std::string name)
{
unsigned int subscript = parseAndStripArrayIndex(&name);
unsigned int numUniforms = mUniformIndex.size();
for (unsigned int location = 0; location < numUniforms; location++)
{
if (mUniformIndex[location].name == name)
{
const int index = mUniformIndex[location].index;
const bool isArray = mUniforms[index]->isArray();
if ((isArray && mUniformIndex[location].element == subscript) ||
(subscript == GL_INVALID_INDEX))
{
return location;
}
}
}
return -1;
}
GLuint ProgramBinary::getUniformIndex(std::string name)
{
unsigned int subscript = parseAndStripArrayIndex(&name);
// The app is not allowed to specify array indices other than 0 for arrays of basic types
if (subscript != 0 && subscript != GL_INVALID_INDEX)
{
return GL_INVALID_INDEX;
}
unsigned int numUniforms = mUniforms.size();
for (unsigned int index = 0; index < numUniforms; index++)
{
if (mUniforms[index]->name == name)
{
if (mUniforms[index]->isArray() || subscript == GL_INVALID_INDEX)
{
return index;
}
}
}
return GL_INVALID_INDEX;
}
GLuint ProgramBinary::getUniformBlockIndex(std::string name)
{
unsigned int subscript = parseAndStripArrayIndex(&name);
unsigned int numUniformBlocks = mUniformBlocks.size();
for (unsigned int blockIndex = 0; blockIndex < numUniformBlocks; blockIndex++)
{
const UniformBlock &uniformBlock = *mUniformBlocks[blockIndex];
if (uniformBlock.name == name)
{
const bool arrayElementZero = (subscript == GL_INVALID_INDEX && uniformBlock.elementIndex == 0);
if (subscript == uniformBlock.elementIndex || arrayElementZero)
{
return blockIndex;
}
}
}
return GL_INVALID_INDEX;
}
UniformBlock *ProgramBinary::getUniformBlockByIndex(GLuint blockIndex)
{
ASSERT(blockIndex < mUniformBlocks.size());
return mUniformBlocks[blockIndex];
}
GLint ProgramBinary::getFragDataLocation(const char *name) const
{
std::string baseName(name);
unsigned int arrayIndex;
arrayIndex = parseAndStripArrayIndex(&baseName);
for (auto locationIt = mOutputVariables.begin(); locationIt != mOutputVariables.end(); locationIt++)
{
const VariableLocation &outputVariable = locationIt->second;
if (outputVariable.name == baseName && (arrayIndex == GL_INVALID_INDEX || arrayIndex == outputVariable.element))
{
return static_cast<GLint>(locationIt->first);
}
}
return -1;
}
template <typename T>
bool ProgramBinary::setUniform(GLint location, GLsizei count, const T* v, GLenum targetUniformType)
{
if (location < 0 || location >= (int)mUniformIndex.size())
{
return false;
}
const int components = UniformComponentCount(targetUniformType);
const GLenum targetBoolType = UniformBoolVectorType(targetUniformType);
Uniform *targetUniform = mUniforms[mUniformIndex[location].index];
targetUniform->dirty = true;
int elementCount = targetUniform->elementCount();
if (elementCount == 1 && count > 1)
return false; // attempting to write an array to a non-array uniform is an INVALID_OPERATION
count = std::min(elementCount - (int)mUniformIndex[location].element, count);
if (targetUniform->type == targetUniformType)
{
T *target = (T*)targetUniform->data + mUniformIndex[location].element * 4;
for (int i = 0; i < count; i++)
{
for (int c = 0; c < components; c++)
{
target[c] = v[c];
}
for (int c = components; c < 4; c++)
{
target[c] = 0;
}
target += 4;
v += components;
}
}
else if (targetUniform->type == targetBoolType)
{
GLint *boolParams = (GLint*)targetUniform->data + mUniformIndex[location].element * 4;
for (int i = 0; i < count; i++)
{
for (int c = 0; c < components; c++)
{
boolParams[c] = (v[c] == static_cast<T>(0)) ? GL_FALSE : GL_TRUE;
}
for (int c = components; c < 4; c++)
{
boolParams[c] = GL_FALSE;
}
boolParams += 4;
v += components;
}
}
else
{
return false;
}
return true;
}
bool ProgramBinary::setUniform1fv(GLint location, GLsizei count, const GLfloat* v)
{
return setUniform(location, count, v, GL_FLOAT);
}
bool ProgramBinary::setUniform2fv(GLint location, GLsizei count, const GLfloat *v)
{
return setUniform(location, count, v, GL_FLOAT_VEC2);
}
bool ProgramBinary::setUniform3fv(GLint location, GLsizei count, const GLfloat *v)
{
return setUniform(location, count, v, GL_FLOAT_VEC3);
}
bool ProgramBinary::setUniform4fv(GLint location, GLsizei count, const GLfloat *v)
{
return setUniform(location, count, v, GL_FLOAT_VEC4);
}
template<typename T>
void transposeMatrix(T *target, const GLfloat *value, int targetWidth, int targetHeight, int srcWidth, int srcHeight)
{
int copyWidth = std::min(targetHeight, srcWidth);
int copyHeight = std::min(targetWidth, srcHeight);
for (int x = 0; x < copyWidth; x++)
{
for (int y = 0; y < copyHeight; y++)
{
target[x * targetWidth + y] = static_cast<T>(value[y * srcWidth + x]);
}
}
// clear unfilled right side
for (int y = 0; y < copyWidth; y++)
{
for (int x = copyHeight; x < targetWidth; x++)
{
target[y * targetWidth + x] = static_cast<T>(0);
}
}
// clear unfilled bottom.
for (int y = copyWidth; y < targetHeight; y++)
{
for (int x = 0; x < targetWidth; x++)
{
target[y * targetWidth + x] = static_cast<T>(0);
}
}
}
template<typename T>
void expandMatrix(T *target, const GLfloat *value, int targetWidth, int targetHeight, int srcWidth, int srcHeight)
{
int copyWidth = std::min(targetWidth, srcWidth);
int copyHeight = std::min(targetHeight, srcHeight);
for (int y = 0; y < copyHeight; y++)
{
for (int x = 0; x < copyWidth; x++)
{
target[y * targetWidth + x] = static_cast<T>(value[y * srcWidth + x]);
}
}
// clear unfilled right side
for (int y = 0; y < copyHeight; y++)
{
for (int x = copyWidth; x < targetWidth; x++)
{
target[y * targetWidth + x] = static_cast<T>(0);
}
}
// clear unfilled bottom.
for (int y = copyHeight; y < targetHeight; y++)
{
for (int x = 0; x < targetWidth; x++)
{
target[y * targetWidth + x] = static_cast<T>(0);
}
}
}
template <int cols, int rows>
bool ProgramBinary::setUniformMatrixfv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value, GLenum targetUniformType)
{
if (location < 0 || location >= (int)mUniformIndex.size())
{
return false;
}
Uniform *targetUniform = mUniforms[mUniformIndex[location].index];
targetUniform->dirty = true;
if (targetUniform->type != targetUniformType)
{
return false;
}
int elementCount = targetUniform->elementCount();
if (elementCount == 1 && count > 1)
return false; // attempting to write an array to a non-array uniform is an INVALID_OPERATION
count = std::min(elementCount - (int)mUniformIndex[location].element, count);
const unsigned int targetMatrixStride = (4 * rows);
GLfloat *target = (GLfloat*)(targetUniform->data + mUniformIndex[location].element * sizeof(GLfloat) * targetMatrixStride);
for (int i = 0; i < count; i++)
{
// Internally store matrices as transposed versions to accomodate HLSL matrix indexing
if (transpose == GL_FALSE)
{
transposeMatrix<GLfloat>(target, value, 4, rows, rows, cols);
}
else
{
expandMatrix<GLfloat>(target, value, 4, rows, cols, rows);
}
target += targetMatrixStride;
value += cols * rows;
}
return true;
}
bool ProgramBinary::setUniformMatrix2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<2, 2>(location, count, transpose, value, GL_FLOAT_MAT2);
}
bool ProgramBinary::setUniformMatrix3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<3, 3>(location, count, transpose, value, GL_FLOAT_MAT3);
}
bool ProgramBinary::setUniformMatrix4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<4, 4>(location, count, transpose, value, GL_FLOAT_MAT4);
}
bool ProgramBinary::setUniformMatrix2x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<2, 3>(location, count, transpose, value, GL_FLOAT_MAT2x3);
}
bool ProgramBinary::setUniformMatrix3x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<3, 2>(location, count, transpose, value, GL_FLOAT_MAT3x2);
}
bool ProgramBinary::setUniformMatrix2x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<2, 4>(location, count, transpose, value, GL_FLOAT_MAT2x4);
}
bool ProgramBinary::setUniformMatrix4x2fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<4, 2>(location, count, transpose, value, GL_FLOAT_MAT4x2);
}
bool ProgramBinary::setUniformMatrix3x4fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<3, 4>(location, count, transpose, value, GL_FLOAT_MAT3x4);
}
bool ProgramBinary::setUniformMatrix4x3fv(GLint location, GLsizei count, GLboolean transpose, const GLfloat *value)
{
return setUniformMatrixfv<4, 3>(location, count, transpose, value, GL_FLOAT_MAT4x3);
}
bool ProgramBinary::setUniform1iv(GLint location, GLsizei count, const GLint *v)
{
if (location < 0 || location >= (int)mUniformIndex.size())
{
return false;
}
Uniform *targetUniform = mUniforms[mUniformIndex[location].index];
targetUniform->dirty = true;
int elementCount = targetUniform->elementCount();
if (elementCount == 1 && count > 1)
return false; // attempting to write an array to a non-array uniform is an INVALID_OPERATION
count = std::min(elementCount - (int)mUniformIndex[location].element, count);
if (targetUniform->type == GL_INT || IsSampler(targetUniform->type))
{
GLint *target = (GLint*)targetUniform->data + mUniformIndex[location].element * 4;
for (int i = 0; i < count; i++)
{
target[0] = v[0];
target[1] = 0;
target[2] = 0;
target[3] = 0;
target += 4;
v += 1;
}
}
else if (targetUniform->type == GL_BOOL)
{
GLint *boolParams = (GLint*)targetUniform->data + mUniformIndex[location].element * 4;
for (int i = 0; i < count; i++)
{
boolParams[0] = (v[0] == 0) ? GL_FALSE : GL_TRUE;
boolParams[1] = GL_FALSE;
boolParams[2] = GL_FALSE;
boolParams[3] = GL_FALSE;
boolParams += 4;
v += 1;
}
}
else
{
return false;
}
return true;
}
bool ProgramBinary::setUniform2iv(GLint location, GLsizei count, const GLint *v)
{
return setUniform(location, count, v, GL_INT_VEC2);
}
bool ProgramBinary::setUniform3iv(GLint location, GLsizei count, const GLint *v)
{
return setUniform(location, count, v, GL_INT_VEC3);
}
bool ProgramBinary::setUniform4iv(GLint location, GLsizei count, const GLint *v)
{
return setUniform(location, count, v, GL_INT_VEC4);
}
bool ProgramBinary::setUniform1uiv(GLint location, GLsizei count, const GLuint *v)
{
return setUniform(location, count, v, GL_UNSIGNED_INT);
}
bool ProgramBinary::setUniform2uiv(GLint location, GLsizei count, const GLuint *v)
{
return setUniform(location, count, v, GL_UNSIGNED_INT_VEC2);
}
bool ProgramBinary::setUniform3uiv(GLint location, GLsizei count, const GLuint *v)
{
return setUniform(location, count, v, GL_UNSIGNED_INT_VEC3);
}
bool ProgramBinary::setUniform4uiv(GLint location, GLsizei count, const GLuint *v)
{
return setUniform(location, count, v, GL_UNSIGNED_INT_VEC4);
}
template <typename T>
bool ProgramBinary::getUniformv(GLint location, GLsizei *bufSize, T *params, GLenum uniformType)
{
if (location < 0 || location >= (int)mUniformIndex.size())
{
return false;
}
Uniform *targetUniform = mUniforms[mUniformIndex[location].index];
// sized queries -- ensure the provided buffer is large enough
if (bufSize)
{
int requiredBytes = UniformExternalSize(targetUniform->type);
if (*bufSize < requiredBytes)
{
return false;
}
}
if (IsMatrixType(targetUniform->type))
{
const int rows = VariableRowCount(targetUniform->type);
const int cols = VariableColumnCount(targetUniform->type);
transposeMatrix(params, (GLfloat*)targetUniform->data + mUniformIndex[location].element * 4 * rows, cols, rows, 4, rows);
}
else if (uniformType == UniformComponentType(targetUniform->type))
{
unsigned int size = UniformComponentCount(targetUniform->type);
memcpy(params, targetUniform->data + mUniformIndex[location].element * 4 * sizeof(T),
size * sizeof(T));
}
else
{
unsigned int size = UniformComponentCount(targetUniform->type);
switch (UniformComponentType(targetUniform->type))
{
case GL_BOOL:
{
GLint *boolParams = (GLint*)targetUniform->data + mUniformIndex[location].element * 4;
for (unsigned int i = 0; i < size; i++)
{
params[i] = (boolParams[i] == GL_FALSE) ? static_cast<T>(0) : static_cast<T>(1);
}
}
break;
case GL_FLOAT:
{
GLfloat *floatParams = (GLfloat*)targetUniform->data + mUniformIndex[location].element * 4;
for (unsigned int i = 0; i < size; i++)
{
params[i] = static_cast<T>(floatParams[i]);
}
}
break;
case GL_INT:
{
GLint *intParams = (GLint*)targetUniform->data + mUniformIndex[location].element * 4;
for (unsigned int i = 0; i < size; i++)
{
params[i] = static_cast<T>(intParams[i]);
}
}
break;
case GL_UNSIGNED_INT:
{
GLuint *uintParams = (GLuint*)targetUniform->data + mUniformIndex[location].element * 4;
for (unsigned int i = 0; i < size; i++)
{
params[i] = static_cast<T>(uintParams[i]);
}
}
break;
default: UNREACHABLE();
}
}
return true;
}
bool ProgramBinary::getUniformfv(GLint location, GLsizei *bufSize, GLfloat *params)
{
return getUniformv(location, bufSize, params, GL_FLOAT);
}
bool ProgramBinary::getUniformiv(GLint location, GLsizei *bufSize, GLint *params)
{
return getUniformv(location, bufSize, params, GL_INT);
}
bool ProgramBinary::getUniformuiv(GLint location, GLsizei *bufSize, GLuint *params)
{
return getUniformv(location, bufSize, params, GL_UNSIGNED_INT);
}
void ProgramBinary::dirtyAllUniforms()
{
unsigned int numUniforms = mUniforms.size();
for (unsigned int index = 0; index < numUniforms; index++)
{
mUniforms[index]->dirty = true;
}
}
// Applies all the uniforms set for this program object to the renderer
void ProgramBinary::applyUniforms()
{
// Retrieve sampler uniform values
for (std::vector<Uniform*>::iterator ub = mUniforms.begin(), ue = mUniforms.end(); ub != ue; ++ub)
{
Uniform *targetUniform = *ub;
if (targetUniform->dirty)
{
if (IsSampler(targetUniform->type))
{
int count = targetUniform->elementCount();
GLint (*v)[4] = (GLint(*)[4])targetUniform->data;
if (targetUniform->isReferencedByFragmentShader())
{
unsigned int firstIndex = targetUniform->psRegisterIndex;
for (int i = 0; i < count; i++)
{
unsigned int samplerIndex = firstIndex + i;
if (samplerIndex < MAX_TEXTURE_IMAGE_UNITS)
{
ASSERT(mSamplersPS[samplerIndex].active);
mSamplersPS[samplerIndex].logicalTextureUnit = v[i][0];
}
}
}
if (targetUniform->isReferencedByVertexShader())
{
unsigned int firstIndex = targetUniform->vsRegisterIndex;
for (int i = 0; i < count; i++)
{
unsigned int samplerIndex = firstIndex + i;
if (samplerIndex < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS)
{
ASSERT(mSamplersVS[samplerIndex].active);
mSamplersVS[samplerIndex].logicalTextureUnit = v[i][0];
}
}
}
}
}
}
mRenderer->applyUniforms(this, &mUniforms);
}
bool ProgramBinary::applyUniformBuffers(const std::vector<gl::Buffer*> boundBuffers)
{
const gl::Buffer *vertexUniformBuffers[gl::IMPLEMENTATION_MAX_VERTEX_SHADER_UNIFORM_BUFFERS] = {NULL};
const gl::Buffer *fragmentUniformBuffers[gl::IMPLEMENTATION_MAX_FRAGMENT_SHADER_UNIFORM_BUFFERS] = {NULL};
const unsigned int reservedBuffersInVS = mRenderer->getReservedVertexUniformBuffers();
const unsigned int reservedBuffersInFS = mRenderer->getReservedFragmentUniformBuffers();
ASSERT(boundBuffers.size() == mUniformBlocks.size());
for (unsigned int uniformBlockIndex = 0; uniformBlockIndex < mUniformBlocks.size(); uniformBlockIndex++)
{
gl::UniformBlock *uniformBlock = getUniformBlockByIndex(uniformBlockIndex);
gl::Buffer *uniformBuffer = boundBuffers[uniformBlockIndex];
ASSERT(uniformBlock && uniformBuffer);
if (uniformBuffer->size() < uniformBlock->dataSize)
{
// undefined behaviour
return false;
}
ASSERT(uniformBlock->isReferencedByVertexShader() || uniformBlock->isReferencedByFragmentShader());
if (uniformBlock->isReferencedByVertexShader())
{
unsigned int registerIndex = uniformBlock->vsRegisterIndex - reservedBuffersInVS;
ASSERT(vertexUniformBuffers[registerIndex] == NULL);
ASSERT(registerIndex < mRenderer->getMaxVertexShaderUniformBuffers());
vertexUniformBuffers[registerIndex] = uniformBuffer;
}
if (uniformBlock->isReferencedByFragmentShader())
{
unsigned int registerIndex = uniformBlock->psRegisterIndex - reservedBuffersInFS;
ASSERT(fragmentUniformBuffers[registerIndex] == NULL);
ASSERT(registerIndex < mRenderer->getMaxFragmentShaderUniformBuffers());
fragmentUniformBuffers[registerIndex] = uniformBuffer;
}
}
return mRenderer->setUniformBuffers(vertexUniformBuffers, fragmentUniformBuffers);
}
// Packs varyings into generic varying registers, using the algorithm from [OpenGL ES Shading Language 1.00 rev. 17] appendix A section 7 page 111
// Returns the number of used varying registers, or -1 if unsuccesful
int ProgramBinary::packVaryings(InfoLog &infoLog, const sh::ShaderVariable *packing[][4], FragmentShader *fragmentShader)
{
const int maxVaryingVectors = mRenderer->getMaxVaryingVectors();
fragmentShader->resetVaryingsRegisterAssignment();
for (unsigned int varyingIndex = 0; varyingIndex < fragmentShader->mVaryings.size(); varyingIndex++)
{
sh::Varying *varying = &fragmentShader->mVaryings[varyingIndex];
GLenum transposedType = TransposeMatrixType(varying->type);
// matrices within varying structs are not transposed
int registers = (varying->isStruct() ? sh::HLSLVariableRegisterCount(*varying) : gl::VariableRowCount(transposedType)) * varying->elementCount();
int elements = (varying->isStruct() ? 4 : VariableColumnCount(transposedType));
bool success = false;
if (elements == 2 || elements == 3 || elements == 4)
{
for (int r = 0; r <= maxVaryingVectors - registers && !success; r++)
{
bool available = true;
for (int y = 0; y < registers && available; y++)
{
for (int x = 0; x < elements && available; x++)
{
if (packing[r + y][x])
{
available = false;
}
}
}
if (available)
{
varying->registerIndex = r;
varying->elementIndex = 0;
for (int y = 0; y < registers; y++)
{
for (int x = 0; x < elements; x++)
{
packing[r + y][x] = &*varying;
}
}
success = true;
}
}
if (!success && elements == 2)
{
for (int r = maxVaryingVectors - registers; r >= 0 && !success; r--)
{
bool available = true;
for (int y = 0; y < registers && available; y++)
{
for (int x = 2; x < 4 && available; x++)
{
if (packing[r + y][x])
{
available = false;
}
}
}
if (available)
{
varying->registerIndex = r;
varying->elementIndex = 2;
for (int y = 0; y < registers; y++)
{
for (int x = 2; x < 4; x++)
{
packing[r + y][x] = &*varying;
}
}
success = true;
}
}
}
}
else if (elements == 1)
{
int space[4] = {0};
for (int y = 0; y < maxVaryingVectors; y++)
{
for (int x = 0; x < 4; x++)
{
space[x] += packing[y][x] ? 0 : 1;
}
}
int column = 0;
for (int x = 0; x < 4; x++)
{
if (space[x] >= registers && space[x] < space[column])
{
column = x;
}
}
if (space[column] >= registers)
{
for (int r = 0; r < maxVaryingVectors; r++)
{
if (!packing[r][column])
{
varying->registerIndex = r;
for (int y = r; y < r + registers; y++)
{
packing[y][column] = &*varying;
}
break;
}
}
varying->elementIndex = column;
success = true;
}
}
else UNREACHABLE();
if (!success)
{
infoLog.append("Could not pack varying %s", varying->name.c_str());
return -1;
}
}
// Return the number of used registers
int registers = 0;
for (int r = 0; r < maxVaryingVectors; r++)
{
if (packing[r][0] || packing[r][1] || packing[r][2] || packing[r][3])
{
registers++;
}
}
return registers;
}
void ProgramBinary::defineOutputVariables(FragmentShader *fragmentShader)
{
const std::vector<sh::Attribute> &outputVars = fragmentShader->getOutputVariables();
for (unsigned int outputVariableIndex = 0; outputVariableIndex < outputVars.size(); outputVariableIndex++)
{
const sh::Attribute &outputVariable = outputVars[outputVariableIndex];
const int baseLocation = outputVariable.location == -1 ? 0 : outputVariable.location;
if (outputVariable.arraySize > 0)
{
for (unsigned int elementIndex = 0; elementIndex < outputVariable.arraySize; elementIndex++)
{
const int location = baseLocation + elementIndex;
ASSERT(mOutputVariables.count(location) == 0);
mOutputVariables[location] = VariableLocation(outputVariable.name, elementIndex, outputVariableIndex);
}
}
else
{
ASSERT(mOutputVariables.count(baseLocation) == 0);
mOutputVariables[baseLocation] = VariableLocation(outputVariable.name, GL_INVALID_INDEX, outputVariableIndex);
}
}
}
bool ProgramBinary::linkVaryings(InfoLog &infoLog, int registers, const sh::ShaderVariable *packing[][4],
std::string& pixelHLSL, std::string& vertexHLSL,
FragmentShader *fragmentShader, VertexShader *vertexShader)
{
if (pixelHLSL.empty() || vertexHLSL.empty())
{
return false;
}
bool usesMRT = fragmentShader->mUsesMultipleRenderTargets;
bool usesFragColor = fragmentShader->mUsesFragColor;
bool usesFragData = fragmentShader->mUsesFragData;
if (usesFragColor && usesFragData)
{
infoLog.append("Cannot use both gl_FragColor and gl_FragData in the same fragment shader.");
return false;
}
// Write the HLSL input/output declarations
const int shaderModel = mRenderer->getMajorShaderModel();
const int maxVaryingVectors = mRenderer->getMaxVaryingVectors();
const int registersNeeded = registers + (fragmentShader->mUsesFragCoord ? 1 : 0) + (fragmentShader->mUsesPointCoord ? 1 : 0);
// Two cases when writing to gl_FragColor and using ESSL 1.0:
// - with a 3.0 context, the output color is copied to channel 0
// - with a 2.0 context, the output color is broadcast to all channels
const bool broadcast = (fragmentShader->mUsesFragColor && mRenderer->getCurrentClientVersion() < 3);
const unsigned int numRenderTargets = (broadcast || usesMRT ? mRenderer->getMaxRenderTargets() : 1);
if (registersNeeded > maxVaryingVectors)
{
infoLog.append("No varying registers left to support gl_FragCoord/gl_PointCoord");
return false;
}
vertexShader->resetVaryingsRegisterAssignment();
for (unsigned int fragVaryingIndex = 0; fragVaryingIndex < fragmentShader->mVaryings.size(); fragVaryingIndex++)
{
sh::Varying *input = &fragmentShader->mVaryings[fragVaryingIndex];
bool matched = false;
for (unsigned int vertVaryingIndex = 0; vertVaryingIndex < vertexShader->mVaryings.size(); vertVaryingIndex++)
{
sh::Varying *output = &vertexShader->mVaryings[vertVaryingIndex];
if (output->name == input->name)
{
if (!linkValidateVariables(infoLog, output->name, *input, *output))
{
return false;
}
output->registerIndex = input->registerIndex;
output->elementIndex = input->elementIndex;
matched = true;
break;
}
}
if (!matched)
{
infoLog.append("Fragment varying %s does not match any vertex varying", input->name.c_str());
return false;
}
}
mUsesPointSize = vertexShader->mUsesPointSize;
std::string varyingSemantic = (mUsesPointSize && shaderModel == 3) ? "COLOR" : "TEXCOORD";
std::string targetSemantic = (shaderModel >= 4) ? "SV_Target" : "COLOR";
std::string positionSemantic = (shaderModel >= 4) ? "SV_Position" : "POSITION";
std::string depthSemantic = (shaderModel >= 4) ? "SV_Depth" : "DEPTH";
std::string varyingHLSL = generateVaryingHLSL(fragmentShader, varyingSemantic);
// special varyings that use reserved registers
int reservedRegisterIndex = registers;
std::string fragCoordSemantic;
std::string pointCoordSemantic;
if (fragmentShader->mUsesFragCoord)
{
fragCoordSemantic = varyingSemantic + str(reservedRegisterIndex++);
}
if (fragmentShader->mUsesPointCoord)
{
// Shader model 3 uses a special TEXCOORD semantic for point sprite texcoords.
// In DX11 we compute this in the GS.
if (shaderModel == 3)
{
pointCoordSemantic = "TEXCOORD0";
}
else if (shaderModel >= 4)
{
pointCoordSemantic = varyingSemantic + str(reservedRegisterIndex++);
}
}
vertexHLSL += "struct VS_INPUT\n"
"{\n";
int semanticIndex = 0;
const std::vector<sh::Attribute> &activeAttributes = vertexShader->mActiveAttributes;
for (unsigned int attributeIndex = 0; attributeIndex < activeAttributes.size(); attributeIndex++)
{
const sh::Attribute &attribute = activeAttributes[attributeIndex];
vertexHLSL += " " + gl_d3d::TypeString(TransposeMatrixType(attribute.type)) + " ";
vertexHLSL += decorateAttribute(attribute.name) + " : TEXCOORD" + str(semanticIndex) + ";\n";
semanticIndex += AttributeRegisterCount(attribute.type);
}
vertexHLSL += "};\n"
"\n"
"struct VS_OUTPUT\n"
"{\n";
if (shaderModel < 4)
{
vertexHLSL += " float4 gl_Position : " + positionSemantic + ";\n";
}
vertexHLSL += varyingHLSL;
if (fragmentShader->mUsesFragCoord)
{
vertexHLSL += " float4 gl_FragCoord : " + fragCoordSemantic + ";\n";
}
if (vertexShader->mUsesPointSize && shaderModel >= 3)
{
vertexHLSL += " float gl_PointSize : PSIZE;\n";
}
if (shaderModel >= 4)
{
vertexHLSL += " float4 gl_Position : " + positionSemantic + ";\n";
}
vertexHLSL += "};\n"
"\n"
"VS_OUTPUT main(VS_INPUT input)\n"
"{\n";
for (unsigned int attributeIndex = 0; attributeIndex < activeAttributes.size(); attributeIndex++)
{
const sh::ShaderVariable &attribute = activeAttributes[attributeIndex];
vertexHLSL += " " + decorateAttribute(attribute.name) + " = ";
if (IsMatrixType(attribute.type)) // Matrix
{
vertexHLSL += "transpose";
}
vertexHLSL += "(input." + decorateAttribute(attribute.name) + ");\n";
}
if (shaderModel >= 4)
{
vertexHLSL += "\n"
" gl_main();\n"
"\n"
" VS_OUTPUT output;\n"
" output.gl_Position.x = gl_Position.x;\n"
" output.gl_Position.y = -gl_Position.y;\n"
" output.gl_Position.z = (gl_Position.z + gl_Position.w) * 0.5;\n"
" output.gl_Position.w = gl_Position.w;\n";
}
else
{
vertexHLSL += "\n"
" gl_main();\n"
"\n"
" VS_OUTPUT output;\n"
" output.gl_Position.x = gl_Position.x * dx_ViewAdjust.z + dx_ViewAdjust.x * gl_Position.w;\n"
" output.gl_Position.y = -(gl_Position.y * dx_ViewAdjust.w + dx_ViewAdjust.y * gl_Position.w);\n"
" output.gl_Position.z = (gl_Position.z + gl_Position.w) * 0.5;\n"
" output.gl_Position.w = gl_Position.w;\n";
}
if (vertexShader->mUsesPointSize && shaderModel >= 3)
{
vertexHLSL += " output.gl_PointSize = gl_PointSize;\n";
}
if (fragmentShader->mUsesFragCoord)
{
vertexHLSL += " output.gl_FragCoord = gl_Position;\n";
}
for (unsigned int vertVaryingIndex = 0; vertVaryingIndex < vertexShader->mVaryings.size(); vertVaryingIndex++)
{
sh::Varying *varying = &vertexShader->mVaryings[vertVaryingIndex];
if (varying->registerAssigned())
{
for (unsigned int elementIndex = 0; elementIndex < varying->elementCount(); elementIndex++)
{
int variableRows = (varying->isStruct() ? 1 : VariableRowCount(TransposeMatrixType(varying->type)));
for (int row = 0; row < variableRows; row++)
{
int r = varying->registerIndex + elementIndex * variableRows + row;
vertexHLSL += " output.v" + str(r);
bool sharedRegister = false; // Register used by multiple varyings
for (int x = 0; x < 4; x++)
{
if (packing[r][x] && packing[r][x] != packing[r][0])
{
sharedRegister = true;
break;
}
}
if(sharedRegister)
{
vertexHLSL += ".";
for (int x = 0; x < 4; x++)
{
if (packing[r][x] == &*varying)
{
switch(x)
{
case 0: vertexHLSL += "x"; break;
case 1: vertexHLSL += "y"; break;
case 2: vertexHLSL += "z"; break;
case 3: vertexHLSL += "w"; break;
}
}
}
}
vertexHLSL += " = _" + varying->name;
if (varying->isArray())
{
vertexHLSL += arrayString(elementIndex);
}
if (variableRows > 1)
{
vertexHLSL += arrayString(row);
}
vertexHLSL += ";\n";
}
}
}
}
vertexHLSL += "\n"
" return output;\n"
"}\n";
pixelHLSL += "struct PS_INPUT\n"
"{\n";
pixelHLSL += varyingHLSL;
if (fragmentShader->mUsesFragCoord)
{
pixelHLSL += " float4 gl_FragCoord : " + fragCoordSemantic + ";\n";
}
if (fragmentShader->mUsesPointCoord && shaderModel >= 3)
{
pixelHLSL += " float2 gl_PointCoord : " + pointCoordSemantic + ";\n";
}
// Must consume the PSIZE element if the geometry shader is not active
// We won't know if we use a GS until we draw
if (vertexShader->mUsesPointSize && shaderModel >= 4)
{
pixelHLSL += " float gl_PointSize : PSIZE;\n";
}
if (fragmentShader->mUsesFragCoord)
{
if (shaderModel >= 4)
{
pixelHLSL += " float4 dx_VPos : SV_Position;\n";
}
else if (shaderModel >= 3)
{
pixelHLSL += " float2 dx_VPos : VPOS;\n";
}
}
pixelHLSL += "};\n"
"\n"
"struct PS_OUTPUT\n"
"{\n";
if (mShaderVersion < 300)
{
for (unsigned int renderTargetIndex = 0; renderTargetIndex < numRenderTargets; renderTargetIndex++)
{
pixelHLSL += " float4 gl_Color" + str(renderTargetIndex) + " : " + targetSemantic + str(renderTargetIndex) + ";\n";
}
if (fragmentShader->mUsesFragDepth)
{
pixelHLSL += " float gl_Depth : " + depthSemantic + ";\n";
}
}
else
{
defineOutputVariables(fragmentShader);
const std::vector<sh::Attribute> &outputVars = fragmentShader->getOutputVariables();
for (auto locationIt = mOutputVariables.begin(); locationIt != mOutputVariables.end(); locationIt++)
{
const VariableLocation &outputLocation = locationIt->second;
const sh::ShaderVariable &outputVariable = outputVars[outputLocation.index];
const std::string &elementString = (outputLocation.element == GL_INVALID_INDEX ? "" : str(outputLocation.element));
pixelHLSL += " " + gl_d3d::TypeString(outputVariable.type) +
" out_" + outputLocation.name + elementString +
" : " + targetSemantic + str(locationIt->first) + ";\n";
}
}
pixelHLSL += "};\n"
"\n";
if (fragmentShader->mUsesFrontFacing)
{
if (shaderModel >= 4)
{
pixelHLSL += "PS_OUTPUT main(PS_INPUT input, bool isFrontFace : SV_IsFrontFace)\n"
"{\n";
}
else
{
pixelHLSL += "PS_OUTPUT main(PS_INPUT input, float vFace : VFACE)\n"
"{\n";
}
}
else
{
pixelHLSL += "PS_OUTPUT main(PS_INPUT input)\n"
"{\n";
}
if (fragmentShader->mUsesFragCoord)
{
pixelHLSL += " float rhw = 1.0 / input.gl_FragCoord.w;\n";
if (shaderModel >= 4)
{
pixelHLSL += " gl_FragCoord.x = input.dx_VPos.x;\n"
" gl_FragCoord.y = input.dx_VPos.y;\n";
}
else if (shaderModel >= 3)
{
pixelHLSL += " gl_FragCoord.x = input.dx_VPos.x + 0.5;\n"
" gl_FragCoord.y = input.dx_VPos.y + 0.5;\n";
}
else
{
// dx_ViewCoords contains the viewport width/2, height/2, center.x and center.y. See Renderer::setViewport()
pixelHLSL += " gl_FragCoord.x = (input.gl_FragCoord.x * rhw) * dx_ViewCoords.x + dx_ViewCoords.z;\n"
" gl_FragCoord.y = (input.gl_FragCoord.y * rhw) * dx_ViewCoords.y + dx_ViewCoords.w;\n";
}
pixelHLSL += " gl_FragCoord.z = (input.gl_FragCoord.z * rhw) * dx_DepthFront.x + dx_DepthFront.y;\n"
" gl_FragCoord.w = rhw;\n";
}
if (fragmentShader->mUsesPointCoord && shaderModel >= 3)
{
pixelHLSL += " gl_PointCoord.x = input.gl_PointCoord.x;\n";
pixelHLSL += " gl_PointCoord.y = 1.0 - input.gl_PointCoord.y;\n";
}
if (fragmentShader->mUsesFrontFacing)
{
if (shaderModel <= 3)
{
pixelHLSL += " gl_FrontFacing = (vFace * dx_DepthFront.z >= 0.0);\n";
}
else
{
pixelHLSL += " gl_FrontFacing = isFrontFace;\n";
}
}
for (unsigned int varyingIndex = 0; varyingIndex < fragmentShader->mVaryings.size(); varyingIndex++)
{
sh::Varying *varying = &fragmentShader->mVaryings[varyingIndex];
if (varying->registerAssigned())
{
for (unsigned int elementIndex = 0; elementIndex < varying->elementCount(); elementIndex++)
{
GLenum transposedType = TransposeMatrixType(varying->type);
int variableRows = (varying->isStruct() ? 1 : VariableRowCount(transposedType));
for (int row = 0; row < variableRows; row++)
{
std::string n = str(varying->registerIndex + elementIndex * variableRows + row);
pixelHLSL += " _" + varying->name;
if (varying->isArray())
{
pixelHLSL += arrayString(elementIndex);
}
if (variableRows > 1)
{
pixelHLSL += arrayString(row);
}
if (varying->isStruct())
{
pixelHLSL += " = input.v" + n + ";\n"; break;
}
else
{
switch (VariableColumnCount(transposedType))
{
case 1: pixelHLSL += " = input.v" + n + ".x;\n"; break;
case 2: pixelHLSL += " = input.v" + n + ".xy;\n"; break;
case 3: pixelHLSL += " = input.v" + n + ".xyz;\n"; break;
case 4: pixelHLSL += " = input.v" + n + ";\n"; break;
default: UNREACHABLE();
}
}
}
}
}
else UNREACHABLE();
}
pixelHLSL += "\n"
" gl_main();\n"
"\n"
" PS_OUTPUT output;\n";
if (mShaderVersion < 300)
{
for (unsigned int renderTargetIndex = 0; renderTargetIndex < numRenderTargets; renderTargetIndex++)
{
unsigned int sourceColorIndex = broadcast ? 0 : renderTargetIndex;
pixelHLSL += " output.gl_Color" + str(renderTargetIndex) + " = gl_Color[" + str(sourceColorIndex) + "];\n";
}
if (fragmentShader->mUsesFragDepth)
{
pixelHLSL += " output.gl_Depth = gl_Depth;\n";
}
}
else
{
for (auto locationIt = mOutputVariables.begin(); locationIt != mOutputVariables.end(); locationIt++)
{
const VariableLocation &outputLocation = locationIt->second;
const std::string &variableName = "out_" + outputLocation.name;
const std::string &outVariableName = variableName + (outputLocation.element == GL_INVALID_INDEX ? "" : str(outputLocation.element));
const std::string &staticVariableName = variableName + arrayString(outputLocation.element);
pixelHLSL += " output." + outVariableName + " = " + staticVariableName + ";\n";
}
}
pixelHLSL += "\n"
" return output;\n"
"}\n";
return true;
}
std::string ProgramBinary::generateVaryingHLSL(FragmentShader *fragmentShader, const std::string &varyingSemantic) const
{
std::string varyingHLSL;
for (unsigned int varyingIndex = 0; varyingIndex < fragmentShader->mVaryings.size(); varyingIndex++)
{
sh::Varying *varying = &fragmentShader->mVaryings[varyingIndex];
if (varying->registerAssigned())
{
for (unsigned int elementIndex = 0; elementIndex < varying->elementCount(); elementIndex++)
{
GLenum transposedType = TransposeMatrixType(varying->type);
int variableRows = (varying->isStruct() ? 1 : VariableRowCount(transposedType));
for (int row = 0; row < variableRows; row++)
{
switch (varying->interpolation)
{
case sh::INTERPOLATION_SMOOTH: varyingHLSL += " "; break;
case sh::INTERPOLATION_FLAT: varyingHLSL += " nointerpolation "; break;
case sh::INTERPOLATION_CENTROID: varyingHLSL += " centroid "; break;
default: UNREACHABLE();
}
std::string n = str(varying->registerIndex + elementIndex * variableRows + row);
// matrices within structs are not transposed, hence we do not use the special struct prefix "rm"
std::string typeString = varying->isStruct() ? "_" + varying->structName :
gl_d3d::TypeString(UniformComponentType(transposedType)) + str(VariableColumnCount(transposedType));
varyingHLSL += typeString + " v" + n + " : " + varyingSemantic + n + ";\n";
}
}
}
else UNREACHABLE();
}
return varyingHLSL;
}
bool ProgramBinary::load(InfoLog &infoLog, const void *binary, GLsizei length)
{
BinaryInputStream stream(binary, length);
int format = 0;
stream.read(&format);
if (format != GL_PROGRAM_BINARY_ANGLE)
{
infoLog.append("Invalid program binary format.");
return false;
}
int version = 0;
stream.read(&version);
if (version != VERSION_DWORD)
{
infoLog.append("Invalid program binary version.");
return false;
}
int compileFlags = 0;
stream.read(&compileFlags);
if (compileFlags != ANGLE_COMPILE_OPTIMIZATION_LEVEL)
{
infoLog.append("Mismatched compilation flags.");
return false;
}
for (int i = 0; i < MAX_VERTEX_ATTRIBS; ++i)
{
stream.read(&mLinkedAttribute[i].type);
std::string name;
stream.read(&name);
mLinkedAttribute[i].name = name;
stream.read(&mSemanticIndex[i]);
}
for (unsigned int i = 0; i < MAX_TEXTURE_IMAGE_UNITS; ++i)
{
stream.read(&mSamplersPS[i].active);
stream.read(&mSamplersPS[i].logicalTextureUnit);
int textureType;
stream.read(&textureType);
mSamplersPS[i].textureType = (TextureType) textureType;
}
for (unsigned int i = 0; i < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; ++i)
{
stream.read(&mSamplersVS[i].active);
stream.read(&mSamplersVS[i].logicalTextureUnit);
int textureType;
stream.read(&textureType);
mSamplersVS[i].textureType = (TextureType) textureType;
}
stream.read(&mUsedVertexSamplerRange);
stream.read(&mUsedPixelSamplerRange);
stream.read(&mUsesPointSize);
stream.read(&mShaderVersion);
size_t size;
stream.read(&size);
if (stream.error())
{
infoLog.append("Invalid program binary.");
return false;
}
mUniforms.resize(size);
for (unsigned int i = 0; i < size; ++i)
{
GLenum type;
GLenum precision;
std::string name;
unsigned int arraySize;
int blockIndex;
stream.read(&type);
stream.read(&precision);
stream.read(&name);
stream.read(&arraySize);
stream.read(&blockIndex);
int offset;
int arrayStride;
int matrixStride;
bool isRowMajorMatrix;
stream.read(&offset);
stream.read(&arrayStride);
stream.read(&matrixStride);
stream.read(&isRowMajorMatrix);
const sh::BlockMemberInfo blockInfo(offset, arrayStride, matrixStride, isRowMajorMatrix);
mUniforms[i] = new Uniform(type, precision, name, arraySize, blockIndex, blockInfo);
stream.read(&mUniforms[i]->psRegisterIndex);
stream.read(&mUniforms[i]->vsRegisterIndex);
stream.read(&mUniforms[i]->registerCount);
stream.read(&mUniforms[i]->registerElement);
}
stream.read(&size);
if (stream.error())
{
infoLog.append("Invalid program binary.");
return false;
}
mUniformBlocks.resize(size);
for (unsigned int uniformBlockIndex = 0; uniformBlockIndex < size; ++uniformBlockIndex)
{
std::string name;
unsigned int elementIndex;
unsigned int dataSize;
stream.read(&name);
stream.read(&elementIndex);
stream.read(&dataSize);
mUniformBlocks[uniformBlockIndex] = new UniformBlock(name, elementIndex, dataSize);
UniformBlock& uniformBlock = *mUniformBlocks[uniformBlockIndex];
stream.read(&uniformBlock.psRegisterIndex);
stream.read(&uniformBlock.vsRegisterIndex);
size_t numMembers;
stream.read(&numMembers);
uniformBlock.memberUniformIndexes.resize(numMembers);
for (unsigned int blockMemberIndex = 0; blockMemberIndex < numMembers; blockMemberIndex++)
{
stream.read(&uniformBlock.memberUniformIndexes[blockMemberIndex]);
}
}
stream.read(&size);
if (stream.error())
{
infoLog.append("Invalid program binary.");
return false;
}
mUniformIndex.resize(size);
for (unsigned int i = 0; i < size; ++i)
{
stream.read(&mUniformIndex[i].name);
stream.read(&mUniformIndex[i].element);
stream.read(&mUniformIndex[i].index);
}
unsigned int pixelShaderSize;
stream.read(&pixelShaderSize);
unsigned int vertexShaderSize;
stream.read(&vertexShaderSize);
unsigned int geometryShaderSize;
stream.read(&geometryShaderSize);
const char *ptr = (const char*) binary + stream.offset();
const GUID *binaryIdentifier = (const GUID *) ptr;
ptr += sizeof(GUID);
GUID identifier = mRenderer->getAdapterIdentifier();
if (memcmp(&identifier, binaryIdentifier, sizeof(GUID)) != 0)
{
infoLog.append("Invalid program binary.");
return false;
}
const char *pixelShaderFunction = ptr;
ptr += pixelShaderSize;
const char *vertexShaderFunction = ptr;
ptr += vertexShaderSize;
const char *geometryShaderFunction = geometryShaderSize > 0 ? ptr : NULL;
ptr += geometryShaderSize;
mPixelExecutable = mRenderer->loadExecutable(reinterpret_cast<const DWORD*>(pixelShaderFunction),
pixelShaderSize, rx::SHADER_PIXEL);
if (!mPixelExecutable)
{
infoLog.append("Could not create pixel shader.");
return false;
}
mVertexExecutable = mRenderer->loadExecutable(reinterpret_cast<const DWORD*>(vertexShaderFunction),
vertexShaderSize, rx::SHADER_VERTEX);
if (!mVertexExecutable)
{
infoLog.append("Could not create vertex shader.");
delete mPixelExecutable;
mPixelExecutable = NULL;
return false;
}
if (geometryShaderFunction != NULL && geometryShaderSize > 0)
{
mGeometryExecutable = mRenderer->loadExecutable(reinterpret_cast<const DWORD*>(geometryShaderFunction),
geometryShaderSize, rx::SHADER_GEOMETRY);
if (!mGeometryExecutable)
{
infoLog.append("Could not create geometry shader.");
delete mPixelExecutable;
mPixelExecutable = NULL;
delete mVertexExecutable;
mVertexExecutable = NULL;
return false;
}
}
else
{
mGeometryExecutable = NULL;
}
return true;
}
bool ProgramBinary::save(void* binary, GLsizei bufSize, GLsizei *length)
{
BinaryOutputStream stream;
stream.write(GL_PROGRAM_BINARY_ANGLE);
stream.write(VERSION_DWORD);
stream.write(ANGLE_COMPILE_OPTIMIZATION_LEVEL);
for (unsigned int i = 0; i < MAX_VERTEX_ATTRIBS; ++i)
{
stream.write(mLinkedAttribute[i].type);
stream.write(mLinkedAttribute[i].name);
stream.write(mSemanticIndex[i]);
}
for (unsigned int i = 0; i < MAX_TEXTURE_IMAGE_UNITS; ++i)
{
stream.write(mSamplersPS[i].active);
stream.write(mSamplersPS[i].logicalTextureUnit);
stream.write((int) mSamplersPS[i].textureType);
}
for (unsigned int i = 0; i < IMPLEMENTATION_MAX_VERTEX_TEXTURE_IMAGE_UNITS; ++i)
{
stream.write(mSamplersVS[i].active);
stream.write(mSamplersVS[i].logicalTextureUnit);
stream.write((int) mSamplersVS[i].textureType);
}
stream.write(mUsedVertexSamplerRange);
stream.write(mUsedPixelSamplerRange);
stream.write(mUsesPointSize);
stream.write(mShaderVersion);
stream.write(mUniforms.size());
for (unsigned int uniformIndex = 0; uniformIndex < mUniforms.size(); ++uniformIndex)
{
const Uniform &uniform = *mUniforms[uniformIndex];
stream.write(uniform.type);
stream.write(uniform.precision);
stream.write(uniform.name);
stream.write(uniform.arraySize);
stream.write(uniform.blockIndex);
stream.write(uniform.blockInfo.offset);
stream.write(uniform.blockInfo.arrayStride);
stream.write(uniform.blockInfo.matrixStride);
stream.write(uniform.blockInfo.isRowMajorMatrix);
stream.write(uniform.psRegisterIndex);
stream.write(uniform.vsRegisterIndex);
stream.write(uniform.registerCount);
stream.write(uniform.registerElement);
}
stream.write(mUniformBlocks.size());
for (unsigned int uniformBlockIndex = 0; uniformBlockIndex < mUniformBlocks.size(); ++uniformBlockIndex)
{
const UniformBlock& uniformBlock = *mUniformBlocks[uniformBlockIndex];
stream.write(uniformBlock.name);
stream.write(uniformBlock.elementIndex);
stream.write(uniformBlock.dataSize);
stream.write(uniformBlock.memberUniformIndexes.size());
for (unsigned int blockMemberIndex = 0; blockMemberIndex < uniformBlock.memberUniformIndexes.size(); blockMemberIndex++)
{
stream.write(uniformBlock.memberUniformIndexes[blockMemberIndex]);
}
stream.write(uniformBlock.psRegisterIndex);
stream.write(uniformBlock.vsRegisterIndex);
}
stream.write(mUniformIndex.size());
for (unsigned int i = 0; i < mUniformIndex.size(); ++i)
{
stream.write(mUniformIndex[i].name);
stream.write(mUniformIndex[i].element);
stream.write(mUniformIndex[i].index);
}
UINT pixelShaderSize = mPixelExecutable->getLength();
stream.write(pixelShaderSize);
UINT vertexShaderSize = mVertexExecutable->getLength();
stream.write(vertexShaderSize);
UINT geometryShaderSize = (mGeometryExecutable != NULL) ? mGeometryExecutable->getLength() : 0;
stream.write(geometryShaderSize);
GUID identifier = mRenderer->getAdapterIdentifier();
GLsizei streamLength = stream.length();
const void *streamData = stream.data();
GLsizei totalLength = streamLength + sizeof(GUID) + pixelShaderSize + vertexShaderSize + geometryShaderSize;
if (totalLength > bufSize)
{
if (length)
{
*length = 0;
}
return false;
}
if (binary)
{
char *ptr = (char*) binary;
memcpy(ptr, streamData, streamLength);
ptr += streamLength;
memcpy(ptr, &identifier, sizeof(GUID));
ptr += sizeof(GUID);
memcpy(ptr, mPixelExecutable->getFunction(), pixelShaderSize);
ptr += pixelShaderSize;
memcpy(ptr, mVertexExecutable->getFunction(), vertexShaderSize);
ptr += vertexShaderSize;
if (mGeometryExecutable != NULL && geometryShaderSize > 0)
{
memcpy(ptr, mGeometryExecutable->getFunction(), geometryShaderSize);
ptr += geometryShaderSize;
}
ASSERT(ptr - totalLength == binary);
}
if (length)
{
*length = totalLength;
}
return true;
}
GLint ProgramBinary::getLength()
{
GLint length;
if (save(NULL, INT_MAX, &length))
{
return length;
}
else
{
return 0;
}
}
bool ProgramBinary::link(InfoLog &infoLog, const AttributeBindings &attributeBindings, FragmentShader *fragmentShader, VertexShader *vertexShader)
{
if (!fragmentShader || !fragmentShader->isCompiled())
{
return false;
}
if (!vertexShader || !vertexShader->isCompiled())
{
return false;
}
mShaderVersion = vertexShader->getShaderVersion();
std::string pixelHLSL = fragmentShader->getHLSL();
std::string vertexHLSL = vertexShader->getHLSL();
// Map the varyings to the register file
const sh::ShaderVariable *packing[IMPLEMENTATION_MAX_VARYING_VECTORS][4] = {NULL};
int registers = packVaryings(infoLog, packing, fragmentShader);
if (registers < 0)
{
return false;
}
if (!linkVaryings(infoLog, registers, packing, pixelHLSL, vertexHLSL, fragmentShader, vertexShader))
{
return false;
}
bool success = true;
if (!linkAttributes(infoLog, attributeBindings, fragmentShader, vertexShader))
{
success = false;
}
if (!linkUniforms(infoLog, vertexShader->getUniforms(), fragmentShader->getUniforms()))
{
success = false;
}
// special case for gl_DepthRange, the only built-in uniform (also a struct)
if (vertexShader->mUsesDepthRange || fragmentShader->mUsesDepthRange)
{
mUniforms.push_back(new Uniform(GL_FLOAT, GL_HIGH_FLOAT, "gl_DepthRange.near", 0, -1, sh::BlockMemberInfo::defaultBlockInfo));
mUniforms.push_back(new Uniform(GL_FLOAT, GL_HIGH_FLOAT, "gl_DepthRange.far", 0, -1, sh::BlockMemberInfo::defaultBlockInfo));
mUniforms.push_back(new Uniform(GL_FLOAT, GL_HIGH_FLOAT, "gl_DepthRange.diff", 0, -1, sh::BlockMemberInfo::defaultBlockInfo));
}
if (!linkUniformBlocks(infoLog, vertexShader->getInterfaceBlocks(), fragmentShader->getInterfaceBlocks()))
{
success = false;
}
if (success)
{
mVertexExecutable = mRenderer->compileToExecutable(infoLog, vertexHLSL.c_str(), rx::SHADER_VERTEX);
mPixelExecutable = mRenderer->compileToExecutable(infoLog, pixelHLSL.c_str(), rx::SHADER_PIXEL);
if (usesGeometryShader())
{
std::string geometryHLSL = generateGeometryShaderHLSL(registers, packing, fragmentShader, vertexShader);
mGeometryExecutable = mRenderer->compileToExecutable(infoLog, geometryHLSL.c_str(), rx::SHADER_GEOMETRY);
}
if (!mVertexExecutable || !mPixelExecutable || (usesGeometryShader() && !mGeometryExecutable))
{
infoLog.append("Failed to create D3D shaders.");
success = false;
delete mVertexExecutable;
mVertexExecutable = NULL;
delete mPixelExecutable;
mPixelExecutable = NULL;
delete mGeometryExecutable;
mGeometryExecutable = NULL;
}
}
return success;
}
// Determines the mapping between GL attributes and Direct3D 9 vertex stream usage indices
bool ProgramBinary::linkAttributes(InfoLog &infoLog, const AttributeBindings &attributeBindings, FragmentShader *fragmentShader, VertexShader *vertexShader)
{
unsigned int usedLocations = 0;
const std::vector<sh::Attribute> &activeAttributes = vertexShader->mActiveAttributes;
// Link attributes that have a binding location
for (unsigned int attributeIndex = 0; attributeIndex < activeAttributes.size(); attributeIndex++)
{
const sh::Attribute &attribute = activeAttributes[attributeIndex];
const int location = attribute.location == -1 ? attributeBindings.getAttributeBinding(attribute.name) : attribute.location;
if (location != -1) // Set by glBindAttribLocation or by location layout qualifier
{
const int rows = AttributeRegisterCount(attribute.type);
if (rows + location > MAX_VERTEX_ATTRIBS)
{
infoLog.append("Active attribute (%s) at location %d is too big to fit", attribute.name.c_str(), location);
return false;
}
for (int row = 0; row < rows; row++)
{
const int rowLocation = location + row;
sh::ShaderVariable &linkedAttribute = mLinkedAttribute[rowLocation];
// In GLSL 3.00, attribute aliasing produces a link error
// In GLSL 1.00, attribute aliasing is allowed
if (mShaderVersion >= 300)
{
if (!linkedAttribute.name.empty())
{
infoLog.append("Attribute '%s' aliases attribute '%s' at location %d", attribute.name.c_str(), linkedAttribute.name.c_str(), rowLocation);
return false;
}
}
linkedAttribute = attribute;
usedLocations |= 1 << rowLocation;
}
}
}
// Link attributes that don't have a binding location
for (unsigned int attributeIndex = 0; attributeIndex < activeAttributes.size(); attributeIndex++)
{
const sh::Attribute &attribute = activeAttributes[attributeIndex];
const int location = attribute.location == -1 ? attributeBindings.getAttributeBinding(attribute.name) : attribute.location;
if (location == -1) // Not set by glBindAttribLocation or by location layout qualifier
{
int rows = AttributeRegisterCount(attribute.type);
int availableIndex = AllocateFirstFreeBits(&usedLocations, rows, MAX_VERTEX_ATTRIBS);
if (availableIndex == -1 || availableIndex + rows > MAX_VERTEX_ATTRIBS)
{
infoLog.append("Too many active attributes (%s)", attribute.name.c_str());
return false; // Fail to link
}
mLinkedAttribute[availableIndex] = attribute;
}
}
for (int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; )
{
int index = vertexShader->getSemanticIndex(mLinkedAttribute[attributeIndex].name);
int rows = AttributeRegisterCount(mLinkedAttribute[attributeIndex].type);
for (int r = 0; r < rows; r++)
{
mSemanticIndex[attributeIndex++] = index++;
}
}
return true;
}
bool ProgramBinary::linkValidateVariablesBase(InfoLog &infoLog, const std::string &variableName, const sh::ShaderVariable &vertexVariable, const sh::ShaderVariable &fragmentVariable, bool validatePrecision)
{
if (vertexVariable.type != fragmentVariable.type)
{
infoLog.append("Types for %s differ between vertex and fragment shaders", variableName.c_str());
return false;
}
if (vertexVariable.arraySize != fragmentVariable.arraySize)
{
infoLog.append("Array sizes for %s differ between vertex and fragment shaders", variableName.c_str());
return false;
}
if (validatePrecision && vertexVariable.precision != fragmentVariable.precision)
{
infoLog.append("Precisions for %s differ between vertex and fragment shaders", variableName.c_str());
return false;
}
return true;
}
template <class ShaderVarType>
bool ProgramBinary::linkValidateFields(InfoLog &infoLog, const std::string &varName, const ShaderVarType &vertexVar, const ShaderVarType &fragmentVar)
{
if (vertexVar.fields.size() != fragmentVar.fields.size())
{
infoLog.append("Structure lengths for %s differ between vertex and fragment shaders", varName.c_str());
return false;
}
const unsigned int numMembers = vertexVar.fields.size();
for (unsigned int memberIndex = 0; memberIndex < numMembers; memberIndex++)
{
const ShaderVarType &vertexMember = vertexVar.fields[memberIndex];
const ShaderVarType &fragmentMember = fragmentVar.fields[memberIndex];
if (vertexMember.name != fragmentMember.name)
{
infoLog.append("Name mismatch for field '%d' of %s: (in vertex: '%s', in fragment: '%s')",
memberIndex, varName.c_str(), vertexMember.name.c_str(), fragmentMember.name.c_str());
return false;
}
const std::string memberName = varName.substr(0, varName.length()-1) + "." + vertexVar.name + "'";
if (!linkValidateVariables(infoLog, memberName, vertexMember, fragmentMember))
{
return false;
}
}
return true;
}
bool ProgramBinary::linkValidateVariables(InfoLog &infoLog, const std::string &uniformName, const sh::Uniform &vertexUniform, const sh::Uniform &fragmentUniform)
{
if (!linkValidateVariablesBase(infoLog, uniformName, vertexUniform, fragmentUniform, true))
{
return false;
}
if (!linkValidateFields<sh::Uniform>(infoLog, uniformName, vertexUniform, fragmentUniform))
{
return false;
}
return true;
}
bool ProgramBinary::linkValidateVariables(InfoLog &infoLog, const std::string &varyingName, const sh::Varying &vertexVarying, const sh::Varying &fragmentVarying)
{
if (!linkValidateVariablesBase(infoLog, varyingName, vertexVarying, fragmentVarying, false))
{
return false;
}
if (vertexVarying.interpolation != fragmentVarying.interpolation)
{
infoLog.append("Interpolation types for %s differ between vertex and fragment shaders", varyingName.c_str());
return false;
}
if (!linkValidateFields<sh::Varying>(infoLog, varyingName, vertexVarying, fragmentVarying))
{
return false;
}
return true;
}
bool ProgramBinary::linkValidateVariables(InfoLog &infoLog, const std::string &uniformName, const sh::InterfaceBlockField &vertexUniform, const sh::InterfaceBlockField &fragmentUniform)
{
if (!linkValidateVariablesBase(infoLog, uniformName, vertexUniform, fragmentUniform, true))
{
return false;
}
if (vertexUniform.isRowMajorMatrix != fragmentUniform.isRowMajorMatrix)
{
infoLog.append("Matrix packings for %s differ between vertex and fragment shaders", uniformName.c_str());
return false;
}
if (!linkValidateFields<sh::InterfaceBlockField>(infoLog, uniformName, vertexUniform, fragmentUniform))
{
return false;
}
return true;
}
bool ProgramBinary::linkUniforms(InfoLog &infoLog, const std::vector<sh::Uniform> &vertexUniforms, const std::vector<sh::Uniform> &fragmentUniforms)
{
// Check that uniforms defined in the vertex and fragment shaders are identical
typedef std::map<std::string, const sh::Uniform*> UniformMap;
UniformMap linkedUniforms;
for (unsigned int vertexUniformIndex = 0; vertexUniformIndex < vertexUniforms.size(); vertexUniformIndex++)
{
const sh::Uniform &vertexUniform = vertexUniforms[vertexUniformIndex];
linkedUniforms[vertexUniform.name] = &vertexUniform;
}
for (unsigned int fragmentUniformIndex = 0; fragmentUniformIndex < fragmentUniforms.size(); fragmentUniformIndex++)
{
const sh::Uniform &fragmentUniform = fragmentUniforms[fragmentUniformIndex];
UniformMap::const_iterator entry = linkedUniforms.find(fragmentUniform.name);
if (entry != linkedUniforms.end())
{
const sh::Uniform &vertexUniform = *entry->second;
const std::string &uniformName = "uniform '" + vertexUniform.name + "'";
if (!linkValidateVariables(infoLog, uniformName, vertexUniform, fragmentUniform))
{
return false;
}
}
}
for (unsigned int uniformIndex = 0; uniformIndex < vertexUniforms.size(); uniformIndex++)
{
if (!defineUniform(GL_VERTEX_SHADER, vertexUniforms[uniformIndex], infoLog))
{
return false;
}
}
for (unsigned int uniformIndex = 0; uniformIndex < fragmentUniforms.size(); uniformIndex++)
{
if (!defineUniform(GL_FRAGMENT_SHADER, fragmentUniforms[uniformIndex], infoLog))
{
return false;
}
}
return true;
}
int totalRegisterCount(const sh::Uniform &uniform)
{
int registerCount = 0;
if (!uniform.fields.empty())
{
for (unsigned int fieldIndex = 0; fieldIndex < uniform.fields.size(); fieldIndex++)
{
registerCount += totalRegisterCount(uniform.fields[fieldIndex]);
}
}
else
{
registerCount = 1;
}
return (uniform.arraySize > 0) ? uniform.arraySize * registerCount : registerCount;
}
TextureType ProgramBinary::getTextureType(GLenum samplerType, InfoLog &infoLog)
{
switch(samplerType)
{
case GL_SAMPLER_2D:
case GL_INT_SAMPLER_2D:
case GL_UNSIGNED_INT_SAMPLER_2D:
case GL_SAMPLER_2D_SHADOW:
return TEXTURE_2D;
case GL_SAMPLER_3D:
case GL_INT_SAMPLER_3D:
case GL_UNSIGNED_INT_SAMPLER_3D:
return TEXTURE_3D;
case GL_SAMPLER_CUBE:
case GL_SAMPLER_CUBE_SHADOW:
return TEXTURE_CUBE;
case GL_INT_SAMPLER_CUBE:
case GL_UNSIGNED_INT_SAMPLER_CUBE:
//UNIMPLEMENTED();
infoLog.append("Integer cube texture sampling is currently not supported by ANGLE and returns a black color.");
return TEXTURE_CUBE;
case GL_SAMPLER_2D_ARRAY:
case GL_INT_SAMPLER_2D_ARRAY:
case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY:
case GL_SAMPLER_2D_ARRAY_SHADOW:
return TEXTURE_2D_ARRAY;
default: UNREACHABLE();
}
return TEXTURE_2D;
}
bool ProgramBinary::defineUniform(GLenum shader, const sh::Uniform &constant, InfoLog &infoLog)
{
if (!constant.fields.empty())
{
if (constant.arraySize > 0)
{
unsigned int elementRegisterIndex = constant.registerIndex;
for (unsigned int elementIndex = 0; elementIndex < constant.arraySize; elementIndex++)
{
for (size_t fieldIndex = 0; fieldIndex < constant.fields.size(); fieldIndex++)
{
const sh::Uniform &field = constant.fields[fieldIndex];
const std::string &uniformName = constant.name + arrayString(elementIndex) + "." + field.name;
const sh::Uniform fieldUniform(field.type, field.precision, uniformName.c_str(), field.arraySize,
elementRegisterIndex, field.elementIndex);
if (!defineUniform(shader, fieldUniform, infoLog))
{
return false;
}
elementRegisterIndex += totalRegisterCount(field);
}
}
}
else
{
for (size_t fieldIndex = 0; fieldIndex < constant.fields.size(); fieldIndex++)
{
const sh::Uniform &field = constant.fields[fieldIndex];
const std::string &uniformName = constant.name + "." + field.name;
sh::Uniform fieldUniform(field.type, field.precision, uniformName.c_str(), field.arraySize,
field.registerIndex, field.elementIndex);
fieldUniform.fields = field.fields;
if (!defineUniform(shader, fieldUniform, infoLog))
{
return false;
}
}
}
return true;
}
if (IsSampler(constant.type))
{
unsigned int samplerIndex = constant.registerIndex;
do
{
if (shader == GL_VERTEX_SHADER)
{
if (samplerIndex < mRenderer->getMaxVertexTextureImageUnits())
{
mSamplersVS[samplerIndex].active = true;
mSamplersVS[samplerIndex].textureType = getTextureType(constant.type, infoLog);
mSamplersVS[samplerIndex].logicalTextureUnit = 0;
mUsedVertexSamplerRange = std::max(samplerIndex + 1, mUsedVertexSamplerRange);
}
else
{
infoLog.append("Vertex shader sampler count exceeds the maximum vertex texture units (%d).", mRenderer->getMaxVertexTextureImageUnits());
return false;
}
}
else if (shader == GL_FRAGMENT_SHADER)
{
if (samplerIndex < MAX_TEXTURE_IMAGE_UNITS)
{
mSamplersPS[samplerIndex].active = true;
mSamplersPS[samplerIndex].textureType = getTextureType(constant.type, infoLog);
mSamplersPS[samplerIndex].logicalTextureUnit = 0;
mUsedPixelSamplerRange = std::max(samplerIndex + 1, mUsedPixelSamplerRange);
}
else
{
infoLog.append("Pixel shader sampler count exceeds MAX_TEXTURE_IMAGE_UNITS (%d).", MAX_TEXTURE_IMAGE_UNITS);
return false;
}
}
else UNREACHABLE();
samplerIndex++;
}
while (samplerIndex < constant.registerIndex + constant.arraySize);
}
Uniform *uniform = NULL;
GLint location = getUniformLocation(constant.name);
if (location >= 0) // Previously defined, type and precision must match
{
uniform = mUniforms[mUniformIndex[location].index];
}
else
{
uniform = new Uniform(constant.type, constant.precision, constant.name, constant.arraySize, -1, sh::BlockMemberInfo::defaultBlockInfo);
uniform->registerElement = constant.elementIndex;
}
if (!uniform)
{
return false;
}
if (shader == GL_FRAGMENT_SHADER)
{
uniform->psRegisterIndex = constant.registerIndex;
}
else if (shader == GL_VERTEX_SHADER)
{
uniform->vsRegisterIndex = constant.registerIndex;
}
else UNREACHABLE();
if (location >= 0)
{
return uniform->type == constant.type;
}
mUniforms.push_back(uniform);
unsigned int uniformIndex = mUniforms.size() - 1;
for (unsigned int arrayElementIndex = 0; arrayElementIndex < uniform->elementCount(); arrayElementIndex++)
{
mUniformIndex.push_back(VariableLocation(uniform->name, arrayElementIndex, uniformIndex));
}
if (shader == GL_VERTEX_SHADER)
{
if (constant.registerIndex + uniform->registerCount > mRenderer->getReservedVertexUniformVectors() + mRenderer->getMaxVertexUniformVectors())
{
infoLog.append("Vertex shader active uniforms exceed GL_MAX_VERTEX_UNIFORM_VECTORS (%u)", mRenderer->getMaxVertexUniformVectors());
return false;
}
}
else if (shader == GL_FRAGMENT_SHADER)
{
if (constant.registerIndex + uniform->registerCount > mRenderer->getReservedFragmentUniformVectors() + mRenderer->getMaxFragmentUniformVectors())
{
infoLog.append("Fragment shader active uniforms exceed GL_MAX_FRAGMENT_UNIFORM_VECTORS (%u)", mRenderer->getMaxFragmentUniformVectors());
return false;
}
}
else UNREACHABLE();
return true;
}
bool ProgramBinary::areMatchingInterfaceBlocks(InfoLog &infoLog, const sh::InterfaceBlock &vertexInterfaceBlock, const sh::InterfaceBlock &fragmentInterfaceBlock)
{
const char* blockName = vertexInterfaceBlock.name.c_str();
// validate blocks for the same member types
if (vertexInterfaceBlock.fields.size() != fragmentInterfaceBlock.fields.size())
{
infoLog.append("Types for interface block '%s' differ between vertex and fragment shaders", blockName);
return false;
}
if (vertexInterfaceBlock.arraySize != fragmentInterfaceBlock.arraySize)
{
infoLog.append("Array sizes differ for interface block '%s' between vertex and fragment shaders", blockName);
return false;
}
if (vertexInterfaceBlock.layout != fragmentInterfaceBlock.layout || vertexInterfaceBlock.isRowMajorLayout != fragmentInterfaceBlock.isRowMajorLayout)
{
infoLog.append("Layout qualifiers differ for interface block '%s' between vertex and fragment shaders", blockName);
return false;
}
const unsigned int numBlockMembers = vertexInterfaceBlock.fields.size();
for (unsigned int blockMemberIndex = 0; blockMemberIndex < numBlockMembers; blockMemberIndex++)
{
const sh::InterfaceBlockField &vertexMember = vertexInterfaceBlock.fields[blockMemberIndex];
const sh::InterfaceBlockField &fragmentMember = fragmentInterfaceBlock.fields[blockMemberIndex];
if (vertexMember.name != fragmentMember.name)
{
infoLog.append("Name mismatch for field %d of interface block '%s': (in vertex: '%s', in fragment: '%s')",
blockMemberIndex, blockName, vertexMember.name.c_str(), fragmentMember.name.c_str());
return false;
}
std::string uniformName = "interface block '" + vertexInterfaceBlock.name + "' member '" + vertexMember.name + "'";
if (!linkValidateVariables(infoLog, uniformName, vertexMember, fragmentMember))
{
return false;
}
}
return true;
}
bool ProgramBinary::linkUniformBlocks(InfoLog &infoLog, const sh::ActiveInterfaceBlocks &vertexInterfaceBlocks, const sh::ActiveInterfaceBlocks &fragmentInterfaceBlocks)
{
// Check that interface blocks defined in the vertex and fragment shaders are identical
typedef std::map<std::string, const sh::InterfaceBlock*> UniformBlockMap;
UniformBlockMap linkedUniformBlocks;
for (unsigned int blockIndex = 0; blockIndex < vertexInterfaceBlocks.size(); blockIndex++)
{
const sh::InterfaceBlock &vertexInterfaceBlock = vertexInterfaceBlocks[blockIndex];
linkedUniformBlocks[vertexInterfaceBlock.name] = &vertexInterfaceBlock;
}
for (unsigned int blockIndex = 0; blockIndex < fragmentInterfaceBlocks.size(); blockIndex++)
{
const sh::InterfaceBlock &fragmentInterfaceBlock = fragmentInterfaceBlocks[blockIndex];
UniformBlockMap::const_iterator entry = linkedUniformBlocks.find(fragmentInterfaceBlock.name);
if (entry != linkedUniformBlocks.end())
{
const sh::InterfaceBlock &vertexInterfaceBlock = *entry->second;
if (!areMatchingInterfaceBlocks(infoLog, vertexInterfaceBlock, fragmentInterfaceBlock))
{
return false;
}
}
}
for (unsigned int blockIndex = 0; blockIndex < vertexInterfaceBlocks.size(); blockIndex++)
{
if (!defineUniformBlock(infoLog, GL_VERTEX_SHADER, vertexInterfaceBlocks[blockIndex]))
{
return false;
}
}
for (unsigned int blockIndex = 0; blockIndex < fragmentInterfaceBlocks.size(); blockIndex++)
{
if (!defineUniformBlock(infoLog, GL_FRAGMENT_SHADER, fragmentInterfaceBlocks[blockIndex]))
{
return false;
}
}
return true;
}
void ProgramBinary::defineUniformBlockMembers(const std::vector<sh::InterfaceBlockField> &fields, const std::string &prefix, int blockIndex, BlockInfoItr *blockInfoItr, std::vector<unsigned int> *blockUniformIndexes)
{
for (unsigned int uniformIndex = 0; uniformIndex < fields.size(); uniformIndex++)
{
const sh::InterfaceBlockField &field = fields[uniformIndex];
const std::string &fieldName = (prefix.empty() ? field.name : prefix + "." + field.name);
if (!field.fields.empty())
{
if (field.arraySize > 0)
{
for (unsigned int arrayElement = 0; arrayElement < field.arraySize; arrayElement++)
{
const std::string uniformElementName = fieldName + arrayString(arrayElement);
defineUniformBlockMembers(field.fields, uniformElementName, blockIndex, blockInfoItr, blockUniformIndexes);
}
}
else
{
defineUniformBlockMembers(field.fields, fieldName, blockIndex, blockInfoItr, blockUniformIndexes);
}
}
else
{
Uniform *newUniform = new Uniform(field.type, field.precision, fieldName, field.arraySize,
blockIndex, **blockInfoItr);
// add to uniform list, but not index, since uniform block uniforms have no location
blockUniformIndexes->push_back(mUniforms.size());
mUniforms.push_back(newUniform);
(*blockInfoItr)++;
}
}
}
bool ProgramBinary::defineUniformBlock(InfoLog &infoLog, GLenum shader, const sh::InterfaceBlock &interfaceBlock)
{
// create uniform block entries if they do not exist
if (getUniformBlockIndex(interfaceBlock.name) == GL_INVALID_INDEX)
{
std::vector<unsigned int> blockUniformIndexes;
const unsigned int blockIndex = mUniformBlocks.size();
// define member uniforms
BlockInfoItr blockInfoItr = interfaceBlock.blockInfo.cbegin();
defineUniformBlockMembers(interfaceBlock.fields, "", blockIndex, &blockInfoItr, &blockUniformIndexes);
// create all the uniform blocks
if (interfaceBlock.arraySize > 0)
{
for (unsigned int uniformBlockElement = 0; uniformBlockElement < interfaceBlock.arraySize; uniformBlockElement++)
{
gl::UniformBlock *newUniformBlock = new UniformBlock(interfaceBlock.name, uniformBlockElement, interfaceBlock.dataSize);
newUniformBlock->memberUniformIndexes = blockUniformIndexes;
mUniformBlocks.push_back(newUniformBlock);
}
}
else
{
gl::UniformBlock *newUniformBlock = new UniformBlock(interfaceBlock.name, GL_INVALID_INDEX, interfaceBlock.dataSize);
newUniformBlock->memberUniformIndexes = blockUniformIndexes;
mUniformBlocks.push_back(newUniformBlock);
}
}
// Assign registers to the uniform blocks
const GLuint blockIndex = getUniformBlockIndex(interfaceBlock.name);
const unsigned int elementCount = std::max(1u, interfaceBlock.arraySize);
ASSERT(blockIndex != GL_INVALID_INDEX);
ASSERT(blockIndex + elementCount <= mUniformBlocks.size());
for (unsigned int uniformBlockElement = 0; uniformBlockElement < elementCount; uniformBlockElement++)
{
gl::UniformBlock *uniformBlock = mUniformBlocks[blockIndex + uniformBlockElement];
ASSERT(uniformBlock->name == interfaceBlock.name);
if (!assignUniformBlockRegister(infoLog, uniformBlock, shader, interfaceBlock.registerIndex + uniformBlockElement))
{
return false;
}
}
return true;
}
bool ProgramBinary::assignUniformBlockRegister(InfoLog &infoLog, UniformBlock *uniformBlock, GLenum shader, unsigned int registerIndex)
{
if (shader == GL_VERTEX_SHADER)
{
uniformBlock->vsRegisterIndex = registerIndex;
unsigned int maximumBlocks = mRenderer->getMaxVertexShaderUniformBuffers();
if (registerIndex - mRenderer->getReservedVertexUniformBuffers() >= maximumBlocks)
{
infoLog.append("Vertex shader uniform block count exceed GL_MAX_VERTEX_UNIFORM_BLOCKS (%u)", maximumBlocks);
return false;
}
}
else if (shader == GL_FRAGMENT_SHADER)
{
uniformBlock->psRegisterIndex = registerIndex;
unsigned int maximumBlocks = mRenderer->getMaxFragmentShaderUniformBuffers();
if (registerIndex - mRenderer->getReservedFragmentUniformBuffers() >= maximumBlocks)
{
infoLog.append("Fragment shader uniform block count exceed GL_MAX_FRAGMENT_UNIFORM_BLOCKS (%u)", maximumBlocks);
return false;
}
}
else UNREACHABLE();
return true;
}
std::string ProgramBinary::generateGeometryShaderHLSL(int registers, const sh::ShaderVariable *packing[][4], FragmentShader *fragmentShader, VertexShader *vertexShader) const
{
// for now we only handle point sprite emulation
ASSERT(usesPointSpriteEmulation());
return generatePointSpriteHLSL(registers, packing, fragmentShader, vertexShader);
}
std::string ProgramBinary::generatePointSpriteHLSL(int registers, const sh::ShaderVariable *packing[][4], FragmentShader *fragmentShader, VertexShader *vertexShader) const
{
ASSERT(registers >= 0);
ASSERT(vertexShader->mUsesPointSize);
ASSERT(mRenderer->getMajorShaderModel() >= 4);
std::string geomHLSL;
std::string varyingSemantic = "TEXCOORD";
std::string fragCoordSemantic;
std::string pointCoordSemantic;
int reservedRegisterIndex = registers;
if (fragmentShader->mUsesFragCoord)
{
fragCoordSemantic = varyingSemantic + str(reservedRegisterIndex++);
}
if (fragmentShader->mUsesPointCoord)
{
pointCoordSemantic = varyingSemantic + str(reservedRegisterIndex++);
}
geomHLSL += "uniform float4 dx_ViewCoords : register(c1);\n"
"\n"
"struct GS_INPUT\n"
"{\n";
std::string varyingHLSL = generateVaryingHLSL(fragmentShader, varyingSemantic);
geomHLSL += varyingHLSL;
if (fragmentShader->mUsesFragCoord)
{
geomHLSL += " float4 gl_FragCoord : " + fragCoordSemantic + ";\n";
}
geomHLSL += " float gl_PointSize : PSIZE;\n"
" float4 gl_Position : SV_Position;\n"
"};\n"
"\n"
"struct GS_OUTPUT\n"
"{\n";
geomHLSL += varyingHLSL;
if (fragmentShader->mUsesFragCoord)
{
geomHLSL += " float4 gl_FragCoord : " + fragCoordSemantic + ";\n";
}
if (fragmentShader->mUsesPointCoord)
{
geomHLSL += " float2 gl_PointCoord : " + pointCoordSemantic + ";\n";
}
geomHLSL += " float gl_PointSize : PSIZE;\n"
" float4 gl_Position : SV_Position;\n"
"};\n"
"\n"
"static float2 pointSpriteCorners[] = \n"
"{\n"
" float2( 0.5f, -0.5f),\n"
" float2( 0.5f, 0.5f),\n"
" float2(-0.5f, -0.5f),\n"
" float2(-0.5f, 0.5f)\n"
"};\n"
"\n"
"static float2 pointSpriteTexcoords[] = \n"
"{\n"
" float2(1.0f, 1.0f),\n"
" float2(1.0f, 0.0f),\n"
" float2(0.0f, 1.0f),\n"
" float2(0.0f, 0.0f)\n"
"};\n"
"\n"
"static float minPointSize = " + str(ALIASED_POINT_SIZE_RANGE_MIN) + ".0f;\n"
"static float maxPointSize = " + str(mRenderer->getMaxPointSize()) + ".0f;\n"
"\n"
"[maxvertexcount(4)]\n"
"void main(point GS_INPUT input[1], inout TriangleStream<GS_OUTPUT> outStream)\n"
"{\n"
" GS_OUTPUT output = (GS_OUTPUT)0;\n"
" output.gl_PointSize = input[0].gl_PointSize;\n";
for (int r = 0; r < registers; r++)
{
geomHLSL += " output.v" + str(r) + " = input[0].v" + str(r) + ";\n";
}
if (fragmentShader->mUsesFragCoord)
{
geomHLSL += " output.gl_FragCoord = input[0].gl_FragCoord;\n";
}
geomHLSL += " \n"
" float gl_PointSize = clamp(input[0].gl_PointSize, minPointSize, maxPointSize);\n"
" float4 gl_Position = input[0].gl_Position;\n"
" float2 viewportScale = float2(1.0f / dx_ViewCoords.x, 1.0f / dx_ViewCoords.y) * gl_Position.w;\n";
for (int corner = 0; corner < 4; corner++)
{
geomHLSL += " \n"
" output.gl_Position = gl_Position + float4(pointSpriteCorners[" + str(corner) + "] * viewportScale * gl_PointSize, 0.0f, 0.0f);\n";
if (fragmentShader->mUsesPointCoord)
{
geomHLSL += " output.gl_PointCoord = pointSpriteTexcoords[" + str(corner) + "];\n";
}
geomHLSL += " outStream.Append(output);\n";
}
geomHLSL += " \n"
" outStream.RestartStrip();\n"
"}\n";
return geomHLSL;
}
// This method needs to match OutputHLSL::decorate
std::string ProgramBinary::decorateAttribute(const std::string &name)
{
if (name.compare(0, 3, "gl_") != 0 && name.compare(0, 3, "dx_") != 0)
{
return "_" + name;
}
return name;
}
bool ProgramBinary::isValidated() const
{
return mValidated;
}
void ProgramBinary::getActiveAttribute(GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name) const
{
// Skip over inactive attributes
unsigned int activeAttribute = 0;
unsigned int attribute;
for (attribute = 0; attribute < MAX_VERTEX_ATTRIBS; attribute++)
{
if (mLinkedAttribute[attribute].name.empty())
{
continue;
}
if (activeAttribute == index)
{
break;
}
activeAttribute++;
}
if (bufsize > 0)
{
const char *string = mLinkedAttribute[attribute].name.c_str();
strncpy(name, string, bufsize);
name[bufsize - 1] = '\0';
if (length)
{
*length = strlen(name);
}
}
*size = 1; // Always a single 'type' instance
*type = mLinkedAttribute[attribute].type;
}
GLint ProgramBinary::getActiveAttributeCount() const
{
int count = 0;
for (int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; attributeIndex++)
{
if (!mLinkedAttribute[attributeIndex].name.empty())
{
count++;
}
}
return count;
}
GLint ProgramBinary::getActiveAttributeMaxLength() const
{
int maxLength = 0;
for (int attributeIndex = 0; attributeIndex < MAX_VERTEX_ATTRIBS; attributeIndex++)
{
if (!mLinkedAttribute[attributeIndex].name.empty())
{
maxLength = std::max((int)(mLinkedAttribute[attributeIndex].name.length() + 1), maxLength);
}
}
return maxLength;
}
void ProgramBinary::getActiveUniform(GLuint index, GLsizei bufsize, GLsizei *length, GLint *size, GLenum *type, GLchar *name) const
{
ASSERT(index < mUniforms.size()); // index must be smaller than getActiveUniformCount()
if (bufsize > 0)
{
std::string string = mUniforms[index]->name;
if (mUniforms[index]->isArray())
{
string += "[0]";
}
strncpy(name, string.c_str(), bufsize);
name[bufsize - 1] = '\0';
if (length)
{
*length = strlen(name);
}
}
*size = mUniforms[index]->elementCount();
*type = mUniforms[index]->type;
}
GLint ProgramBinary::getActiveUniformCount() const
{
return mUniforms.size();
}
GLint ProgramBinary::getActiveUniformMaxLength() const
{
int maxLength = 0;
unsigned int numUniforms = mUniforms.size();
for (unsigned int uniformIndex = 0; uniformIndex < numUniforms; uniformIndex++)
{
if (!mUniforms[uniformIndex]->name.empty())
{
int length = (int)(mUniforms[uniformIndex]->name.length() + 1);
if (mUniforms[uniformIndex]->isArray())
{
length += 3; // Counting in "[0]".
}
maxLength = std::max(length, maxLength);
}
}
return maxLength;
}
GLint ProgramBinary::getActiveUniformi(GLuint index, GLenum pname) const
{
const gl::Uniform& uniform = *mUniforms[index];
switch (pname)
{
case GL_UNIFORM_TYPE: return static_cast<GLint>(uniform.type);
case GL_UNIFORM_SIZE: return static_cast<GLint>(uniform.elementCount());
case GL_UNIFORM_NAME_LENGTH: return static_cast<GLint>(uniform.name.size() + 1 + (uniform.isArray() ? 3 : 0));
case GL_UNIFORM_BLOCK_INDEX: return uniform.blockIndex;
case GL_UNIFORM_OFFSET: return uniform.blockInfo.offset;
case GL_UNIFORM_ARRAY_STRIDE: return uniform.blockInfo.arrayStride;
case GL_UNIFORM_MATRIX_STRIDE: return uniform.blockInfo.matrixStride;
case GL_UNIFORM_IS_ROW_MAJOR: return static_cast<GLint>(uniform.blockInfo.isRowMajorMatrix);
default:
UNREACHABLE();
break;
}
return 0;
}
void ProgramBinary::getActiveUniformBlockName(GLuint uniformBlockIndex, GLsizei bufSize, GLsizei *length, GLchar *uniformBlockName) const
{
ASSERT(uniformBlockIndex < mUniformBlocks.size()); // index must be smaller than getActiveUniformBlockCount()
const UniformBlock &uniformBlock = *mUniformBlocks[uniformBlockIndex];
if (bufSize > 0)
{
std::string string = uniformBlock.name;
if (uniformBlock.isArrayElement())
{
string += arrayString(uniformBlock.elementIndex);
}
strncpy(uniformBlockName, string.c_str(), bufSize);
uniformBlockName[bufSize - 1] = '\0';
if (length)
{
*length = strlen(uniformBlockName);
}
}
}
void ProgramBinary::getActiveUniformBlockiv(GLuint uniformBlockIndex, GLenum pname, GLint *params) const
{
ASSERT(uniformBlockIndex < mUniformBlocks.size()); // index must be smaller than getActiveUniformBlockCount()
const UniformBlock &uniformBlock = *mUniformBlocks[uniformBlockIndex];
switch (pname)
{
case GL_UNIFORM_BLOCK_DATA_SIZE:
*params = static_cast<GLint>(uniformBlock.dataSize);
break;
case GL_UNIFORM_BLOCK_NAME_LENGTH:
*params = static_cast<GLint>(uniformBlock.name.size() + 1 + (uniformBlock.isArrayElement() ? 3 : 0));
break;
case GL_UNIFORM_BLOCK_ACTIVE_UNIFORMS:
*params = static_cast<GLint>(uniformBlock.memberUniformIndexes.size());
break;
case GL_UNIFORM_BLOCK_ACTIVE_UNIFORM_INDICES:
{
for (unsigned int blockMemberIndex = 0; blockMemberIndex < uniformBlock.memberUniformIndexes.size(); blockMemberIndex++)
{
params[blockMemberIndex] = static_cast<GLint>(uniformBlock.memberUniformIndexes[blockMemberIndex]);
}
}
break;
case GL_UNIFORM_BLOCK_REFERENCED_BY_VERTEX_SHADER:
*params = static_cast<GLint>(uniformBlock.isReferencedByVertexShader());
break;
case GL_UNIFORM_BLOCK_REFERENCED_BY_FRAGMENT_SHADER:
*params = static_cast<GLint>(uniformBlock.isReferencedByFragmentShader());
break;
default: UNREACHABLE();
}
}
GLuint ProgramBinary::getActiveUniformBlockCount() const
{
return mUniformBlocks.size();
}
GLuint ProgramBinary::getActiveUniformBlockMaxLength() const
{
unsigned int maxLength = 0;
unsigned int numUniformBlocks = mUniformBlocks.size();
for (unsigned int uniformBlockIndex = 0; uniformBlockIndex < numUniformBlocks; uniformBlockIndex++)
{
const UniformBlock &uniformBlock = *mUniformBlocks[uniformBlockIndex];
if (!uniformBlock.name.empty())
{
const unsigned int length = uniformBlock.name.length() + 1;
// Counting in "[0]".
const unsigned int arrayLength = (uniformBlock.isArrayElement() ? 3 : 0);
maxLength = std::max(length + arrayLength, maxLength);
}
}
return maxLength;
}
void ProgramBinary::validate(InfoLog &infoLog)
{
applyUniforms();
if (!validateSamplers(&infoLog))
{
mValidated = false;
}
else
{
mValidated = true;
}
}
bool ProgramBinary::validateSamplers(InfoLog *infoLog)
{
// if any two active samplers in a program are of different types, but refer to the same
// texture image unit, and this is the current program, then ValidateProgram will fail, and
// DrawArrays and DrawElements will issue the INVALID_OPERATION error.
const unsigned int maxCombinedTextureImageUnits = mRenderer->getMaxCombinedTextureImageUnits();
TextureType textureUnitType[IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS];
for (unsigned int i = 0; i < IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS; ++i)
{
textureUnitType[i] = TEXTURE_UNKNOWN;
}
for (unsigned int i = 0; i < mUsedPixelSamplerRange; ++i)
{
if (mSamplersPS[i].active)
{
unsigned int unit = mSamplersPS[i].logicalTextureUnit;
if (unit >= maxCombinedTextureImageUnits)
{
if (infoLog)
{
infoLog->append("Sampler uniform (%d) exceeds IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS (%d)", unit, maxCombinedTextureImageUnits);
}
return false;
}
if (textureUnitType[unit] != TEXTURE_UNKNOWN)
{
if (mSamplersPS[i].textureType != textureUnitType[unit])
{
if (infoLog)
{
infoLog->append("Samplers of conflicting types refer to the same texture image unit (%d).", unit);
}
return false;
}
}
else
{
textureUnitType[unit] = mSamplersPS[i].textureType;
}
}
}
for (unsigned int i = 0; i < mUsedVertexSamplerRange; ++i)
{
if (mSamplersVS[i].active)
{
unsigned int unit = mSamplersVS[i].logicalTextureUnit;
if (unit >= maxCombinedTextureImageUnits)
{
if (infoLog)
{
infoLog->append("Sampler uniform (%d) exceeds IMPLEMENTATION_MAX_COMBINED_TEXTURE_IMAGE_UNITS (%d)", unit, maxCombinedTextureImageUnits);
}
return false;
}
if (textureUnitType[unit] != TEXTURE_UNKNOWN)
{
if (mSamplersVS[i].textureType != textureUnitType[unit])
{
if (infoLog)
{
infoLog->append("Samplers of conflicting types refer to the same texture image unit (%d).", unit);
}
return false;
}
}
else
{
textureUnitType[unit] = mSamplersVS[i].textureType;
}
}
}
return true;
}
ProgramBinary::Sampler::Sampler() : active(false), logicalTextureUnit(0), textureType(TEXTURE_2D)
{
}
struct AttributeSorter
{
AttributeSorter(const int (&semanticIndices)[MAX_VERTEX_ATTRIBS])
: originalIndices(semanticIndices)
{
for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
indices[i] = i;
}
std::sort(&indices[0], &indices[MAX_VERTEX_ATTRIBS], *this);
}
bool operator()(int a, int b)
{
return originalIndices[a] == -1 ? false : originalIndices[a] < originalIndices[b];
}
int indices[MAX_VERTEX_ATTRIBS];
const int (&originalIndices)[MAX_VERTEX_ATTRIBS];
};
void ProgramBinary::sortAttributesByLayout(rx::TranslatedAttribute attributes[MAX_VERTEX_ATTRIBS], int sortedSemanticIndices[MAX_VERTEX_ATTRIBS]) const
{
AttributeSorter sorter(mSemanticIndex);
int oldIndices[MAX_VERTEX_ATTRIBS];
rx::TranslatedAttribute oldTranslatedAttributes[MAX_VERTEX_ATTRIBS];
for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
oldIndices[i] = mSemanticIndex[i];
oldTranslatedAttributes[i] = attributes[i];
}
for (int i = 0; i < MAX_VERTEX_ATTRIBS; i++)
{
int oldIndex = sorter.indices[i];
sortedSemanticIndices[i] = oldIndices[oldIndex];
attributes[i] = oldTranslatedAttributes[oldIndex];
}
}
}