Hash :
17732823
Author :
Date :
2013-08-29T13:46:49
Moved the compiler source files into directories based on their project and added a compiler.gypi to generate the compiler projects.
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//
// Copyright (c) 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.
//
#ifndef TRANSLATOR_COMMON_BLOCKLAYOUTENCODER_H_
#define TRANSLATOR_COMMON_BLOCKLAYOUTENCODER_H_
#include <vector>
#define GL_APICALL
#include <GLES3/gl3.h>
#include <GLES2/gl2.h>
namespace sh
{
struct ShaderVariable;
struct InterfaceBlockField;
struct BlockMemberInfo;
class BlockLayoutEncoder
{
public:
BlockLayoutEncoder(std::vector<BlockMemberInfo> *blockInfoOut);
void encodeInterfaceBlockFields(const std::vector<InterfaceBlockField> &fields);
void encodeInterfaceBlockField(const InterfaceBlockField &field);
void encodeType(GLenum type, unsigned int arraySize, bool isRowMajorMatrix);
size_t getBlockSize() const { return mCurrentOffset * BytesPerComponent; }
static const size_t BytesPerComponent = 4u;
static const unsigned int ComponentsPerRegister = 4u;
protected:
size_t mCurrentOffset;
void nextRegister();
virtual void enterAggregateType() = 0;
virtual void exitAggregateType() = 0;
virtual void getBlockLayoutInfo(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int *arrayStrideOut, int *matrixStrideOut) = 0;
virtual void advanceOffset(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int arrayStride, int matrixStride) = 0;
private:
std::vector<BlockMemberInfo> *mBlockInfoOut;
};
// Block layout according to the std140 block layout
// See "Standard Uniform Block Layout" in Section 2.11.6 of the OpenGL ES 3.0 specification
class Std140BlockEncoder : public BlockLayoutEncoder
{
public:
Std140BlockEncoder(std::vector<BlockMemberInfo> *blockInfoOut);
protected:
virtual void enterAggregateType();
virtual void exitAggregateType();
virtual void getBlockLayoutInfo(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int *arrayStrideOut, int *matrixStrideOut);
virtual void advanceOffset(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int arrayStride, int matrixStride);
};
}
#endif // TRANSLATOR_COMMON_BLOCKLAYOUTENCODER_H_