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Diffstat (limited to 'src/3rdparty/angle/src/common/blocklayout.h')
-rw-r--r-- | src/3rdparty/angle/src/common/blocklayout.h | 127 |
1 files changed, 0 insertions, 127 deletions
diff --git a/src/3rdparty/angle/src/common/blocklayout.h b/src/3rdparty/angle/src/common/blocklayout.h deleted file mode 100644 index d46ac6e547..0000000000 --- a/src/3rdparty/angle/src/common/blocklayout.h +++ /dev/null @@ -1,127 +0,0 @@ -// -// Copyright (c) 2013-2014 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. -// -// blocklayout.h: -// Methods and classes related to uniform layout and packing in GLSL and HLSL. -// - -#ifndef COMMON_BLOCKLAYOUT_H_ -#define COMMON_BLOCKLAYOUT_H_ - -#include <cstddef> -#include <vector> - -#include "angle_gl.h" -#include <GLSLANG/ShaderLang.h> - -namespace sh -{ -struct ShaderVariable; -struct InterfaceBlockField; -struct Uniform; -struct Varying; -struct InterfaceBlock; - -struct BlockMemberInfo -{ - BlockMemberInfo(int offset, int arrayStride, int matrixStride, bool isRowMajorMatrix) - : offset(offset), - arrayStride(arrayStride), - matrixStride(matrixStride), - isRowMajorMatrix(isRowMajorMatrix) - {} - - static BlockMemberInfo getDefaultBlockInfo() - { - return BlockMemberInfo(-1, -1, -1, false); - } - - int offset; - int arrayStride; - int matrixStride; - bool isRowMajorMatrix; -}; - -class BlockLayoutEncoder -{ - public: - BlockLayoutEncoder(); - - BlockMemberInfo encodeType(GLenum type, unsigned int arraySize, bool isRowMajorMatrix); - - size_t getBlockSize() const { return mCurrentOffset * BytesPerComponent; } - size_t getCurrentRegister() const { return mCurrentOffset / ComponentsPerRegister; } - size_t getCurrentElement() const { return mCurrentOffset % ComponentsPerRegister; } - - virtual void enterAggregateType() = 0; - virtual void exitAggregateType() = 0; - - static const size_t BytesPerComponent = 4u; - static const unsigned int ComponentsPerRegister = 4u; - - protected: - size_t mCurrentOffset; - - void nextRegister(); - - 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; -}; - -// 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(); - - virtual void enterAggregateType(); - virtual void exitAggregateType(); - - protected: - 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); -}; - -// Block layout packed according to the D3D9 or default D3D10+ register packing rules -// See http://msdn.microsoft.com/en-us/library/windows/desktop/bb509632(v=vs.85).aspx -// The strategy should be ENCODE_LOOSE for D3D9 constant blocks, and ENCODE_PACKED -// for everything else (D3D10+ constant blocks and all attributes/varyings). - -class HLSLBlockEncoder : public BlockLayoutEncoder -{ - public: - enum HLSLBlockEncoderStrategy - { - ENCODE_PACKED, - ENCODE_LOOSE - }; - - HLSLBlockEncoder(HLSLBlockEncoderStrategy strategy); - - virtual void enterAggregateType(); - virtual void exitAggregateType(); - void skipRegisters(unsigned int numRegisters); - - bool isPacked() const { return mEncoderStrategy == ENCODE_PACKED; } - - static HLSLBlockEncoderStrategy GetStrategyFor(ShShaderOutput outputType); - - protected: - 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); - - HLSLBlockEncoderStrategy mEncoderStrategy; -}; - -// This method returns the number of used registers for a ShaderVariable. It is dependent on the HLSLBlockEncoder -// class to count the number of used registers in a struct (which are individually packed according to the same rules). -unsigned int HLSLVariableRegisterCount(const Varying &variable); -unsigned int HLSLVariableRegisterCount(const Uniform &variable, ShShaderOutput outputType); - -} - -#endif // COMMON_BLOCKLAYOUT_H_ |