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Diffstat (limited to 'src/3rdparty/angle/src/common/blocklayout.cpp')
-rw-r--r-- | src/3rdparty/angle/src/common/blocklayout.cpp | 251 |
1 files changed, 0 insertions, 251 deletions
diff --git a/src/3rdparty/angle/src/common/blocklayout.cpp b/src/3rdparty/angle/src/common/blocklayout.cpp deleted file mode 100644 index e3b2d43566..0000000000 --- a/src/3rdparty/angle/src/common/blocklayout.cpp +++ /dev/null @@ -1,251 +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.cpp: -// Implementation for block layout classes and methods. -// - -#include "common/blocklayout.h" -#include "common/mathutil.h" -#include "common/utilities.h" - -namespace sh -{ - -BlockLayoutEncoder::BlockLayoutEncoder() - : mCurrentOffset(0) -{ -} - -BlockMemberInfo BlockLayoutEncoder::encodeType(GLenum type, unsigned int arraySize, bool isRowMajorMatrix) -{ - int arrayStride; - int matrixStride; - - getBlockLayoutInfo(type, arraySize, isRowMajorMatrix, &arrayStride, &matrixStride); - - const BlockMemberInfo memberInfo(mCurrentOffset * BytesPerComponent, arrayStride * BytesPerComponent, matrixStride * BytesPerComponent, isRowMajorMatrix); - - advanceOffset(type, arraySize, isRowMajorMatrix, arrayStride, matrixStride); - - return memberInfo; -} - -void BlockLayoutEncoder::nextRegister() -{ - mCurrentOffset = rx::roundUp<size_t>(mCurrentOffset, ComponentsPerRegister); -} - -Std140BlockEncoder::Std140BlockEncoder() -{ -} - -void Std140BlockEncoder::enterAggregateType() -{ - nextRegister(); -} - -void Std140BlockEncoder::exitAggregateType() -{ - nextRegister(); -} - -void Std140BlockEncoder::getBlockLayoutInfo(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int *arrayStrideOut, int *matrixStrideOut) -{ - // We assume we are only dealing with 4 byte components (no doubles or half-words currently) - ASSERT(gl::VariableComponentSize(gl::VariableComponentType(type)) == BytesPerComponent); - - size_t baseAlignment = 0; - int matrixStride = 0; - int arrayStride = 0; - - if (gl::IsMatrixType(type)) - { - baseAlignment = ComponentsPerRegister; - matrixStride = ComponentsPerRegister; - - if (arraySize > 0) - { - const int numRegisters = gl::MatrixRegisterCount(type, isRowMajorMatrix); - arrayStride = ComponentsPerRegister * numRegisters; - } - } - else if (arraySize > 0) - { - baseAlignment = ComponentsPerRegister; - arrayStride = ComponentsPerRegister; - } - else - { - const int numComponents = gl::VariableComponentCount(type); - baseAlignment = (numComponents == 3 ? 4u : static_cast<size_t>(numComponents)); - } - - mCurrentOffset = rx::roundUp(mCurrentOffset, baseAlignment); - - *matrixStrideOut = matrixStride; - *arrayStrideOut = arrayStride; -} - -void Std140BlockEncoder::advanceOffset(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int arrayStride, int matrixStride) -{ - if (arraySize > 0) - { - mCurrentOffset += arrayStride * arraySize; - } - else if (gl::IsMatrixType(type)) - { - ASSERT(matrixStride == ComponentsPerRegister); - const int numRegisters = gl::MatrixRegisterCount(type, isRowMajorMatrix); - mCurrentOffset += ComponentsPerRegister * numRegisters; - } - else - { - mCurrentOffset += gl::VariableComponentCount(type); - } -} - -HLSLBlockEncoder::HLSLBlockEncoder(HLSLBlockEncoderStrategy strategy) - : mEncoderStrategy(strategy) -{ -} - -void HLSLBlockEncoder::enterAggregateType() -{ - nextRegister(); -} - -void HLSLBlockEncoder::exitAggregateType() -{ -} - -void HLSLBlockEncoder::getBlockLayoutInfo(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int *arrayStrideOut, int *matrixStrideOut) -{ - // We assume we are only dealing with 4 byte components (no doubles or half-words currently) - ASSERT(gl::VariableComponentSize(gl::VariableComponentType(type)) == BytesPerComponent); - - int matrixStride = 0; - int arrayStride = 0; - - // if variables are not to be packed, or we're about to - // pack a matrix or array, skip to the start of the next - // register - if (!isPacked() || - gl::IsMatrixType(type) || - arraySize > 0) - { - nextRegister(); - } - - if (gl::IsMatrixType(type)) - { - matrixStride = ComponentsPerRegister; - - if (arraySize > 0) - { - const int numRegisters = gl::MatrixRegisterCount(type, isRowMajorMatrix); - arrayStride = ComponentsPerRegister * numRegisters; - } - } - else if (arraySize > 0) - { - arrayStride = ComponentsPerRegister; - } - else if (isPacked()) - { - int numComponents = gl::VariableComponentCount(type); - if ((numComponents + (mCurrentOffset % ComponentsPerRegister)) > ComponentsPerRegister) - { - nextRegister(); - } - } - - *matrixStrideOut = matrixStride; - *arrayStrideOut = arrayStride; -} - -void HLSLBlockEncoder::advanceOffset(GLenum type, unsigned int arraySize, bool isRowMajorMatrix, int arrayStride, int matrixStride) -{ - if (arraySize > 0) - { - mCurrentOffset += arrayStride * (arraySize - 1); - } - - if (gl::IsMatrixType(type)) - { - ASSERT(matrixStride == ComponentsPerRegister); - const int numRegisters = gl::MatrixRegisterCount(type, isRowMajorMatrix); - const int numComponents = gl::MatrixComponentCount(type, isRowMajorMatrix); - mCurrentOffset += ComponentsPerRegister * (numRegisters - 1); - mCurrentOffset += numComponents; - } - else if (isPacked()) - { - mCurrentOffset += gl::VariableComponentCount(type); - } - else - { - mCurrentOffset += ComponentsPerRegister; - } -} - -void HLSLBlockEncoder::skipRegisters(unsigned int numRegisters) -{ - mCurrentOffset += (numRegisters * ComponentsPerRegister); -} - -HLSLBlockEncoder::HLSLBlockEncoderStrategy HLSLBlockEncoder::GetStrategyFor(ShShaderOutput outputType) -{ - switch (outputType) - { - case SH_HLSL9_OUTPUT: return ENCODE_LOOSE; - case SH_HLSL11_OUTPUT: return ENCODE_PACKED; - default: UNREACHABLE(); return ENCODE_PACKED; - } -} - -template <class ShaderVarType> -void HLSLVariableRegisterCount(const ShaderVarType &variable, HLSLBlockEncoder *encoder) -{ - if (variable.isStruct()) - { - for (size_t arrayElement = 0; arrayElement < variable.elementCount(); arrayElement++) - { - encoder->enterAggregateType(); - - for (size_t fieldIndex = 0; fieldIndex < variable.fields.size(); fieldIndex++) - { - HLSLVariableRegisterCount(variable.fields[fieldIndex], encoder); - } - - encoder->exitAggregateType(); - } - } - else - { - // We operate only on varyings and uniforms, which do not have matrix layout qualifiers - encoder->encodeType(variable.type, variable.arraySize, false); - } -} - -unsigned int HLSLVariableRegisterCount(const Varying &variable) -{ - HLSLBlockEncoder encoder(HLSLBlockEncoder::ENCODE_PACKED); - HLSLVariableRegisterCount(variable, &encoder); - - const size_t registerBytes = (encoder.BytesPerComponent * encoder.ComponentsPerRegister); - return static_cast<unsigned int>(rx::roundUp<size_t>(encoder.getBlockSize(), registerBytes) / registerBytes); -} - -unsigned int HLSLVariableRegisterCount(const Uniform &variable, ShShaderOutput outputType) -{ - HLSLBlockEncoder encoder(HLSLBlockEncoder::GetStrategyFor(outputType)); - HLSLVariableRegisterCount(variable, &encoder); - - const size_t registerBytes = (encoder.BytesPerComponent * encoder.ComponentsPerRegister); - return static_cast<unsigned int>(rx::roundUp<size_t>(encoder.getBlockSize(), registerBytes) / registerBytes); -} - -} |