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Diffstat (limited to 'src/3rdparty/angle/src/libANGLE/VaryingPacking.h')
| -rw-r--r-- | src/3rdparty/angle/src/libANGLE/VaryingPacking.h | 184 |
1 files changed, 0 insertions, 184 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/VaryingPacking.h b/src/3rdparty/angle/src/libANGLE/VaryingPacking.h deleted file mode 100644 index 14b25f929e..0000000000 --- a/src/3rdparty/angle/src/libANGLE/VaryingPacking.h +++ /dev/null @@ -1,184 +0,0 @@ -// -// Copyright 2015 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. -// -// VaryingPacking: -// Class which describes a mapping from varyings to registers, according -// to the spec, or using custom packing algorithms. We also keep a register -// allocation list for the D3D renderer. -// - -#ifndef LIBANGLE_VARYINGPACKING_H_ -#define LIBANGLE_VARYINGPACKING_H_ - -#include <GLSLANG/ShaderVars.h> - -#include "angle_gl.h" -#include "common/angleutils.h" -#include "libANGLE/Program.h" - -namespace gl -{ -class InfoLog; - -struct PackedVarying -{ - PackedVarying(const sh::ShaderVariable &varyingIn, sh::InterpolationType interpolationIn) - : PackedVarying(varyingIn, interpolationIn, "") - { - } - PackedVarying(const sh::ShaderVariable &varyingIn, - sh::InterpolationType interpolationIn, - const std::string &parentStructNameIn) - : varying(&varyingIn), - vertexOnly(false), - interpolation(interpolationIn), - parentStructName(parentStructNameIn), - arrayIndex(GL_INVALID_INDEX) - { - } - - bool isStructField() const { return !parentStructName.empty(); } - - bool isArrayElement() const { return arrayIndex != GL_INVALID_INDEX; } - - std::string nameWithArrayIndex() const - { - std::stringstream fullNameStr; - fullNameStr << varying->name; - if (arrayIndex != GL_INVALID_INDEX) - { - fullNameStr << "[" << arrayIndex << "]"; - } - return fullNameStr.str(); - } - - const sh::ShaderVariable *varying; - - // Transform feedback varyings can be only referenced in the VS. - bool vertexOnly; - - // Cached so we can store sh::ShaderVariable to point to varying fields. - sh::InterpolationType interpolation; - - // Struct name - std::string parentStructName; - - GLuint arrayIndex; -}; - -struct PackedVaryingRegister final -{ - PackedVaryingRegister() - : packedVarying(nullptr), - varyingArrayIndex(0), - varyingRowIndex(0), - registerRow(0), - registerColumn(0) - { - } - - PackedVaryingRegister(const PackedVaryingRegister &) = default; - PackedVaryingRegister &operator=(const PackedVaryingRegister &) = default; - - bool operator<(const PackedVaryingRegister &other) const - { - return sortOrder() < other.sortOrder(); - } - - unsigned int sortOrder() const - { - // TODO(jmadill): Handle interpolation types - return registerRow * 4 + registerColumn; - } - - bool isStructField() const { return !structFieldName.empty(); } - - // Index to the array of varyings. - const PackedVarying *packedVarying; - - // The array element of the packed varying. - unsigned int varyingArrayIndex; - - // The row of the array element of the packed varying. - unsigned int varyingRowIndex; - - // The register row to which we've assigned this packed varying. - unsigned int registerRow; - - // The column of the register row into which we've packed this varying. - unsigned int registerColumn; - - // Assigned after packing - unsigned int semanticIndex; - - // Struct member this varying corresponds to. - std::string structFieldName; -}; - -// Supported packing modes: -enum class PackMode -{ - // We treat mat2 arrays as taking two full rows. - WEBGL_STRICT, - - // We allow mat2 to take a 2x2 chunk. - ANGLE_RELAXED, -}; - -class VaryingPacking final : angle::NonCopyable -{ - public: - VaryingPacking(GLuint maxVaryingVectors, PackMode packMode); - ~VaryingPacking(); - - bool packUserVaryings(gl::InfoLog &infoLog, - const std::vector<PackedVarying> &packedVaryings, - const std::vector<std::string> &tfVaryings); - - bool collectAndPackUserVaryings(gl::InfoLog &infoLog, - const Program::MergedVaryings &mergedVaryings, - const std::vector<std::string> &tfVaryings); - - struct Register - { - Register() { data[0] = data[1] = data[2] = data[3] = false; } - - bool &operator[](unsigned int index) { return data[index]; } - bool operator[](unsigned int index) const { return data[index]; } - - bool data[4]; - }; - - Register &operator[](unsigned int index) { return mRegisterMap[index]; } - const Register &operator[](unsigned int index) const { return mRegisterMap[index]; } - - const std::vector<PackedVaryingRegister> &getRegisterList() const { return mRegisterList; } - unsigned int getMaxSemanticIndex() const - { - return static_cast<unsigned int>(mRegisterList.size()); - } - unsigned int getRegisterCount() const; - size_t getRegisterMapSize() const { return mRegisterMap.size(); } - - private: - bool packVarying(const PackedVarying &packedVarying); - bool isFree(unsigned int registerRow, - unsigned int registerColumn, - unsigned int varyingRows, - unsigned int varyingColumns) const; - void insert(unsigned int registerRow, - unsigned int registerColumn, - const PackedVarying &packedVarying); - - std::vector<Register> mRegisterMap; - std::vector<PackedVaryingRegister> mRegisterList; - std::vector<PackedVarying> mPackedVaryings; - - PackMode mPackMode; -}; - -} // namespace gl - -#endif // LIBANGLE_VARYINGPACKING_H_ |