diff options
Diffstat (limited to 'src/3rdparty/angle/src/libGLESv2/renderer/ProgramImpl.cpp')
-rw-r--r-- | src/3rdparty/angle/src/libGLESv2/renderer/ProgramImpl.cpp | 146 |
1 files changed, 146 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libGLESv2/renderer/ProgramImpl.cpp b/src/3rdparty/angle/src/libGLESv2/renderer/ProgramImpl.cpp new file mode 100644 index 0000000000..f9fcad38a4 --- /dev/null +++ b/src/3rdparty/angle/src/libGLESv2/renderer/ProgramImpl.cpp @@ -0,0 +1,146 @@ +// +// Copyright (c) 2014 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. +// + +// ProgramD3D.cpp: Defines the rx::ProgramD3D class which implements rx::ProgramImpl. + +#include "libGLESv2/renderer/ProgramImpl.h" + +#include "common/utilities.h" +#include "libGLESv2/main.h" + +namespace rx +{ + +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; +} + +} + +ProgramImpl::~ProgramImpl() +{ + // Ensure that reset was called by the inherited class during destruction + ASSERT(mUniformIndex.size() == 0); +} + +gl::LinkedUniform *ProgramImpl::getUniformByLocation(GLint location) const +{ + ASSERT(location >= 0 && static_cast<size_t>(location) < mUniformIndex.size()); + return mUniforms[mUniformIndex[location].index]; +} + +gl::LinkedUniform *ProgramImpl::getUniformByName(const std::string &name) const +{ + for (size_t uniformIndex = 0; uniformIndex < mUniforms.size(); uniformIndex++) + { + if (mUniforms[uniformIndex]->name == name) + { + return mUniforms[uniformIndex]; + } + } + + return NULL; +} + +gl::UniformBlock *ProgramImpl::getUniformBlockByIndex(GLuint blockIndex) const +{ + ASSERT(blockIndex < mUniformBlocks.size()); + return mUniformBlocks[blockIndex]; +} + +GLint ProgramImpl::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 ProgramImpl::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 ProgramImpl::getUniformBlockIndex(std::string name) const +{ + unsigned int subscript = ParseAndStripArrayIndex(&name); + + unsigned int numUniformBlocks = mUniformBlocks.size(); + for (unsigned int blockIndex = 0; blockIndex < numUniformBlocks; blockIndex++) + { + const gl::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; +} + +void ProgramImpl::reset() +{ + SafeDeleteContainer(mUniforms); + mUniformIndex.clear(); + SafeDeleteContainer(mUniformBlocks); + mTransformFeedbackLinkedVaryings.clear(); +} + +} |