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Diffstat (limited to 'gfx/angle/checkout/src/common/utilities.cpp')
| -rw-r--r-- | gfx/angle/checkout/src/common/utilities.cpp | 1110 |
1 files changed, 1110 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/common/utilities.cpp b/gfx/angle/checkout/src/common/utilities.cpp new file mode 100644 index 0000000000..ea18cb356d --- /dev/null +++ b/gfx/angle/checkout/src/common/utilities.cpp @@ -0,0 +1,1110 @@ +// +// Copyright (c) 2002-2013 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. +// + +// utilities.cpp: Conversion functions and other utility routines. + +#include "common/utilities.h" +#include <GLSLANG/ShaderVars.h> +#include "common/mathutil.h" +#include "common/platform.h" + +#include <set> + +#if defined(ANGLE_ENABLE_WINDOWS_STORE) +# include <windows.applicationmodel.core.h> +# include <windows.graphics.display.h> +# include <wrl.h> +# include <wrl/wrappers/corewrappers.h> +#endif + +namespace +{ + +template <class IndexType> +gl::IndexRange ComputeTypedIndexRange(const IndexType *indices, + size_t count, + bool primitiveRestartEnabled, + GLuint primitiveRestartIndex) +{ + ASSERT(count > 0); + + IndexType minIndex = 0; + IndexType maxIndex = 0; + size_t nonPrimitiveRestartIndices = 0; + + if (primitiveRestartEnabled) + { + // Find the first non-primitive restart index to initialize the min and max values + size_t i = 0; + for (; i < count; i++) + { + if (indices[i] != primitiveRestartIndex) + { + minIndex = indices[i]; + maxIndex = indices[i]; + nonPrimitiveRestartIndices++; + break; + } + } + + // Loop over the rest of the indices + for (; i < count; i++) + { + if (indices[i] != primitiveRestartIndex) + { + if (minIndex > indices[i]) + { + minIndex = indices[i]; + } + if (maxIndex < indices[i]) + { + maxIndex = indices[i]; + } + nonPrimitiveRestartIndices++; + } + } + } + else + { + minIndex = indices[0]; + maxIndex = indices[0]; + nonPrimitiveRestartIndices = count; + + for (size_t i = 1; i < count; i++) + { + if (minIndex > indices[i]) + { + minIndex = indices[i]; + } + if (maxIndex < indices[i]) + { + maxIndex = indices[i]; + } + } + } + + return gl::IndexRange(static_cast<size_t>(minIndex), static_cast<size_t>(maxIndex), + nonPrimitiveRestartIndices); +} + +} // anonymous namespace + +namespace gl +{ + +int VariableComponentCount(GLenum type) +{ + return VariableRowCount(type) * VariableColumnCount(type); +} + +GLenum VariableComponentType(GLenum type) +{ + switch (type) + { + case GL_BOOL: + case GL_BOOL_VEC2: + case GL_BOOL_VEC3: + case GL_BOOL_VEC4: + return GL_BOOL; + case GL_FLOAT: + case GL_FLOAT_VEC2: + case GL_FLOAT_VEC3: + case GL_FLOAT_VEC4: + case GL_FLOAT_MAT2: + case GL_FLOAT_MAT3: + case GL_FLOAT_MAT4: + case GL_FLOAT_MAT2x3: + case GL_FLOAT_MAT3x2: + case GL_FLOAT_MAT2x4: + case GL_FLOAT_MAT4x2: + case GL_FLOAT_MAT3x4: + case GL_FLOAT_MAT4x3: + return GL_FLOAT; + case GL_INT: + case GL_SAMPLER_2D: + case GL_SAMPLER_2D_RECT_ANGLE: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_2D_ARRAY: + case GL_SAMPLER_EXTERNAL_OES: + case GL_SAMPLER_2D_MULTISAMPLE: + case GL_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_INT_SAMPLER_2D: + case GL_INT_SAMPLER_3D: + case GL_INT_SAMPLER_CUBE: + case GL_INT_SAMPLER_2D_ARRAY: + case GL_INT_SAMPLER_2D_MULTISAMPLE: + case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D: + case GL_UNSIGNED_INT_SAMPLER_3D: + case GL_UNSIGNED_INT_SAMPLER_CUBE: + case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_CUBE_SHADOW: + case GL_SAMPLER_2D_ARRAY_SHADOW: + case GL_INT_VEC2: + case GL_INT_VEC3: + case GL_INT_VEC4: + case GL_IMAGE_2D: + case GL_INT_IMAGE_2D: + case GL_UNSIGNED_INT_IMAGE_2D: + case GL_IMAGE_3D: + case GL_INT_IMAGE_3D: + case GL_UNSIGNED_INT_IMAGE_3D: + case GL_IMAGE_2D_ARRAY: + case GL_INT_IMAGE_2D_ARRAY: + case GL_UNSIGNED_INT_IMAGE_2D_ARRAY: + case GL_IMAGE_CUBE: + case GL_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_ATOMIC_COUNTER: + return GL_INT; + case GL_UNSIGNED_INT: + case GL_UNSIGNED_INT_VEC2: + case GL_UNSIGNED_INT_VEC3: + case GL_UNSIGNED_INT_VEC4: + return GL_UNSIGNED_INT; + default: + UNREACHABLE(); + } + + return GL_NONE; +} + +size_t VariableComponentSize(GLenum type) +{ + switch (type) + { + case GL_BOOL: + return sizeof(GLint); + case GL_FLOAT: + return sizeof(GLfloat); + case GL_INT: + return sizeof(GLint); + case GL_UNSIGNED_INT: + return sizeof(GLuint); + default: + UNREACHABLE(); + } + + return 0; +} + +size_t VariableInternalSize(GLenum type) +{ + // Expanded to 4-element vectors + return VariableComponentSize(VariableComponentType(type)) * VariableRowCount(type) * 4; +} + +size_t VariableExternalSize(GLenum type) +{ + return VariableComponentSize(VariableComponentType(type)) * VariableComponentCount(type); +} + +GLenum VariableBoolVectorType(GLenum type) +{ + switch (type) + { + case GL_FLOAT: + case GL_INT: + case GL_UNSIGNED_INT: + return GL_BOOL; + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_UNSIGNED_INT_VEC2: + return GL_BOOL_VEC2; + case GL_FLOAT_VEC3: + case GL_INT_VEC3: + case GL_UNSIGNED_INT_VEC3: + return GL_BOOL_VEC3; + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_UNSIGNED_INT_VEC4: + return GL_BOOL_VEC4; + + default: + UNREACHABLE(); + return GL_NONE; + } +} + +int VariableRowCount(GLenum type) +{ + switch (type) + { + case GL_NONE: + return 0; + case GL_BOOL: + case GL_FLOAT: + case GL_INT: + case GL_UNSIGNED_INT: + case GL_BOOL_VEC2: + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_UNSIGNED_INT_VEC2: + case GL_BOOL_VEC3: + case GL_FLOAT_VEC3: + case GL_INT_VEC3: + case GL_UNSIGNED_INT_VEC3: + case GL_BOOL_VEC4: + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_UNSIGNED_INT_VEC4: + case GL_SAMPLER_2D: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_2D_ARRAY: + case GL_SAMPLER_EXTERNAL_OES: + case GL_SAMPLER_2D_RECT_ANGLE: + case GL_SAMPLER_2D_MULTISAMPLE: + case GL_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_INT_SAMPLER_2D: + case GL_INT_SAMPLER_3D: + case GL_INT_SAMPLER_CUBE: + case GL_INT_SAMPLER_2D_ARRAY: + case GL_INT_SAMPLER_2D_MULTISAMPLE: + case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D: + case GL_UNSIGNED_INT_SAMPLER_3D: + case GL_UNSIGNED_INT_SAMPLER_CUBE: + case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_CUBE_SHADOW: + case GL_SAMPLER_2D_ARRAY_SHADOW: + case GL_IMAGE_2D: + case GL_INT_IMAGE_2D: + case GL_UNSIGNED_INT_IMAGE_2D: + case GL_IMAGE_2D_ARRAY: + case GL_INT_IMAGE_2D_ARRAY: + case GL_UNSIGNED_INT_IMAGE_2D_ARRAY: + case GL_IMAGE_3D: + case GL_INT_IMAGE_3D: + case GL_UNSIGNED_INT_IMAGE_3D: + case GL_IMAGE_CUBE: + case GL_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_ATOMIC_COUNTER: + return 1; + case GL_FLOAT_MAT2: + case GL_FLOAT_MAT3x2: + case GL_FLOAT_MAT4x2: + return 2; + case GL_FLOAT_MAT3: + case GL_FLOAT_MAT2x3: + case GL_FLOAT_MAT4x3: + return 3; + case GL_FLOAT_MAT4: + case GL_FLOAT_MAT2x4: + case GL_FLOAT_MAT3x4: + return 4; + default: + UNREACHABLE(); + } + + return 0; +} + +int VariableColumnCount(GLenum type) +{ + switch (type) + { + case GL_NONE: + return 0; + case GL_BOOL: + case GL_FLOAT: + case GL_INT: + case GL_UNSIGNED_INT: + case GL_SAMPLER_2D: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_2D_ARRAY: + case GL_SAMPLER_2D_MULTISAMPLE: + case GL_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_INT_SAMPLER_2D: + case GL_INT_SAMPLER_3D: + case GL_INT_SAMPLER_CUBE: + case GL_INT_SAMPLER_2D_ARRAY: + case GL_INT_SAMPLER_2D_MULTISAMPLE: + case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_EXTERNAL_OES: + case GL_SAMPLER_2D_RECT_ANGLE: + case GL_UNSIGNED_INT_SAMPLER_2D: + case GL_UNSIGNED_INT_SAMPLER_3D: + case GL_UNSIGNED_INT_SAMPLER_CUBE: + case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_CUBE_SHADOW: + case GL_SAMPLER_2D_ARRAY_SHADOW: + case GL_IMAGE_2D: + case GL_INT_IMAGE_2D: + case GL_UNSIGNED_INT_IMAGE_2D: + case GL_IMAGE_3D: + case GL_INT_IMAGE_3D: + case GL_UNSIGNED_INT_IMAGE_3D: + case GL_IMAGE_2D_ARRAY: + case GL_INT_IMAGE_2D_ARRAY: + case GL_UNSIGNED_INT_IMAGE_2D_ARRAY: + case GL_IMAGE_CUBE: + case GL_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_ATOMIC_COUNTER: + return 1; + case GL_BOOL_VEC2: + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_UNSIGNED_INT_VEC2: + case GL_FLOAT_MAT2: + case GL_FLOAT_MAT2x3: + case GL_FLOAT_MAT2x4: + return 2; + case GL_BOOL_VEC3: + case GL_FLOAT_VEC3: + case GL_INT_VEC3: + case GL_UNSIGNED_INT_VEC3: + case GL_FLOAT_MAT3: + case GL_FLOAT_MAT3x2: + case GL_FLOAT_MAT3x4: + return 3; + case GL_BOOL_VEC4: + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_UNSIGNED_INT_VEC4: + case GL_FLOAT_MAT4: + case GL_FLOAT_MAT4x2: + case GL_FLOAT_MAT4x3: + return 4; + default: + UNREACHABLE(); + } + + return 0; +} + +bool IsSamplerType(GLenum type) +{ + switch (type) + { + case GL_SAMPLER_2D: + case GL_SAMPLER_3D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_2D_ARRAY: + case GL_SAMPLER_EXTERNAL_OES: + case GL_SAMPLER_2D_MULTISAMPLE: + case GL_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_2D_RECT_ANGLE: + case GL_INT_SAMPLER_2D: + case GL_INT_SAMPLER_3D: + case GL_INT_SAMPLER_CUBE: + case GL_INT_SAMPLER_2D_ARRAY: + case GL_INT_SAMPLER_2D_MULTISAMPLE: + case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D: + case GL_UNSIGNED_INT_SAMPLER_3D: + case GL_UNSIGNED_INT_SAMPLER_CUBE: + case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_CUBE_SHADOW: + case GL_SAMPLER_2D_ARRAY_SHADOW: + return true; + } + + return false; +} + +bool IsImageType(GLenum type) +{ + switch (type) + { + case GL_IMAGE_2D: + case GL_INT_IMAGE_2D: + case GL_UNSIGNED_INT_IMAGE_2D: + case GL_IMAGE_3D: + case GL_INT_IMAGE_3D: + case GL_UNSIGNED_INT_IMAGE_3D: + case GL_IMAGE_2D_ARRAY: + case GL_INT_IMAGE_2D_ARRAY: + case GL_UNSIGNED_INT_IMAGE_2D_ARRAY: + case GL_IMAGE_CUBE: + case GL_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_IMAGE_CUBE: + return true; + } + return false; +} + +bool IsImage2DType(GLenum type) +{ + switch (type) + { + case GL_IMAGE_2D: + case GL_INT_IMAGE_2D: + case GL_UNSIGNED_INT_IMAGE_2D: + return true; + case GL_IMAGE_3D: + case GL_INT_IMAGE_3D: + case GL_UNSIGNED_INT_IMAGE_3D: + case GL_IMAGE_2D_ARRAY: + case GL_INT_IMAGE_2D_ARRAY: + case GL_UNSIGNED_INT_IMAGE_2D_ARRAY: + case GL_IMAGE_CUBE: + case GL_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_IMAGE_CUBE: + return false; + default: + UNREACHABLE(); + return false; + } +} + +bool IsAtomicCounterType(GLenum type) +{ + return type == GL_UNSIGNED_INT_ATOMIC_COUNTER; +} + +bool IsOpaqueType(GLenum type) +{ + // ESSL 3.10 section 4.1.7 defines opaque types as: samplers, images and atomic counters. + return IsImageType(type) || IsSamplerType(type) || IsAtomicCounterType(type); +} + +bool IsMatrixType(GLenum type) +{ + return VariableRowCount(type) > 1; +} + +GLenum TransposeMatrixType(GLenum type) +{ + if (!IsMatrixType(type)) + { + return type; + } + + switch (type) + { + case GL_FLOAT_MAT2: + return GL_FLOAT_MAT2; + case GL_FLOAT_MAT3: + return GL_FLOAT_MAT3; + case GL_FLOAT_MAT4: + return GL_FLOAT_MAT4; + case GL_FLOAT_MAT2x3: + return GL_FLOAT_MAT3x2; + case GL_FLOAT_MAT3x2: + return GL_FLOAT_MAT2x3; + case GL_FLOAT_MAT2x4: + return GL_FLOAT_MAT4x2; + case GL_FLOAT_MAT4x2: + return GL_FLOAT_MAT2x4; + case GL_FLOAT_MAT3x4: + return GL_FLOAT_MAT4x3; + case GL_FLOAT_MAT4x3: + return GL_FLOAT_MAT3x4; + default: + UNREACHABLE(); + return GL_NONE; + } +} + +int MatrixRegisterCount(GLenum type, bool isRowMajorMatrix) +{ + ASSERT(IsMatrixType(type)); + return isRowMajorMatrix ? VariableRowCount(type) : VariableColumnCount(type); +} + +int MatrixComponentCount(GLenum type, bool isRowMajorMatrix) +{ + ASSERT(IsMatrixType(type)); + return isRowMajorMatrix ? VariableColumnCount(type) : VariableRowCount(type); +} + +int VariableRegisterCount(GLenum type) +{ + return IsMatrixType(type) ? VariableColumnCount(type) : 1; +} + +int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize) +{ + ASSERT(allocationSize <= bitsSize); + + unsigned int mask = std::numeric_limits<unsigned int>::max() >> + (std::numeric_limits<unsigned int>::digits - allocationSize); + + for (unsigned int i = 0; i < bitsSize - allocationSize + 1; i++) + { + if ((*bits & mask) == 0) + { + *bits |= mask; + return i; + } + + mask <<= 1; + } + + return -1; +} + +IndexRange ComputeIndexRange(DrawElementsType indexType, + const GLvoid *indices, + size_t count, + bool primitiveRestartEnabled) +{ + switch (indexType) + { + case DrawElementsType::UnsignedByte: + return ComputeTypedIndexRange(static_cast<const GLubyte *>(indices), count, + primitiveRestartEnabled, + GetPrimitiveRestartIndex(indexType)); + case DrawElementsType::UnsignedShort: + return ComputeTypedIndexRange(static_cast<const GLushort *>(indices), count, + primitiveRestartEnabled, + GetPrimitiveRestartIndex(indexType)); + case DrawElementsType::UnsignedInt: + return ComputeTypedIndexRange(static_cast<const GLuint *>(indices), count, + primitiveRestartEnabled, + GetPrimitiveRestartIndex(indexType)); + default: + UNREACHABLE(); + return IndexRange(); + } +} + +GLuint GetPrimitiveRestartIndex(DrawElementsType indexType) +{ + switch (indexType) + { + case DrawElementsType::UnsignedByte: + return 0xFF; + case DrawElementsType::UnsignedShort: + return 0xFFFF; + case DrawElementsType::UnsignedInt: + return 0xFFFFFFFF; + default: + UNREACHABLE(); + return 0; + } +} + +bool IsTriangleMode(PrimitiveMode drawMode) +{ + switch (drawMode) + { + case PrimitiveMode::Triangles: + case PrimitiveMode::TriangleFan: + case PrimitiveMode::TriangleStrip: + return true; + case PrimitiveMode::Points: + case PrimitiveMode::Lines: + case PrimitiveMode::LineLoop: + case PrimitiveMode::LineStrip: + return false; + default: + UNREACHABLE(); + } + + return false; +} + +namespace priv +{ +const angle::PackedEnumMap<PrimitiveMode, bool> gLineModes = { + {{PrimitiveMode::LineLoop, true}, + {PrimitiveMode::LineStrip, true}, + {PrimitiveMode::LineStripAdjacency, true}, + {PrimitiveMode::Lines, true}}}; +} // namespace priv + +bool IsIntegerFormat(GLenum unsizedFormat) +{ + switch (unsizedFormat) + { + case GL_RGBA_INTEGER: + case GL_RGB_INTEGER: + case GL_RG_INTEGER: + case GL_RED_INTEGER: + return true; + + default: + return false; + } +} + +// [OpenGL ES SL 3.00.4] Section 11 p. 120 +// Vertex Outs/Fragment Ins packing priorities +int VariableSortOrder(GLenum type) +{ + switch (type) + { + // 1. Arrays of mat4 and mat4 + // Non-square matrices of type matCxR consume the same space as a square + // matrix of type matN where N is the greater of C and R + case GL_FLOAT_MAT4: + case GL_FLOAT_MAT2x4: + case GL_FLOAT_MAT3x4: + case GL_FLOAT_MAT4x2: + case GL_FLOAT_MAT4x3: + return 0; + + // 2. Arrays of mat2 and mat2 (since they occupy full rows) + case GL_FLOAT_MAT2: + return 1; + + // 3. Arrays of vec4 and vec4 + case GL_FLOAT_VEC4: + case GL_INT_VEC4: + case GL_BOOL_VEC4: + case GL_UNSIGNED_INT_VEC4: + return 2; + + // 4. Arrays of mat3 and mat3 + case GL_FLOAT_MAT3: + case GL_FLOAT_MAT2x3: + case GL_FLOAT_MAT3x2: + return 3; + + // 5. Arrays of vec3 and vec3 + case GL_FLOAT_VEC3: + case GL_INT_VEC3: + case GL_BOOL_VEC3: + case GL_UNSIGNED_INT_VEC3: + return 4; + + // 6. Arrays of vec2 and vec2 + case GL_FLOAT_VEC2: + case GL_INT_VEC2: + case GL_BOOL_VEC2: + case GL_UNSIGNED_INT_VEC2: + return 5; + + // 7. Single component types + case GL_FLOAT: + case GL_INT: + case GL_BOOL: + case GL_UNSIGNED_INT: + case GL_SAMPLER_2D: + case GL_SAMPLER_CUBE: + case GL_SAMPLER_EXTERNAL_OES: + case GL_SAMPLER_2D_RECT_ANGLE: + case GL_SAMPLER_2D_ARRAY: + case GL_SAMPLER_2D_MULTISAMPLE: + case GL_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_3D: + case GL_INT_SAMPLER_2D: + case GL_INT_SAMPLER_3D: + case GL_INT_SAMPLER_CUBE: + case GL_INT_SAMPLER_2D_ARRAY: + case GL_INT_SAMPLER_2D_MULTISAMPLE: + case GL_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D: + case GL_UNSIGNED_INT_SAMPLER_3D: + case GL_UNSIGNED_INT_SAMPLER_CUBE: + case GL_UNSIGNED_INT_SAMPLER_2D_ARRAY: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE: + case GL_UNSIGNED_INT_SAMPLER_2D_MULTISAMPLE_ARRAY: + case GL_SAMPLER_2D_SHADOW: + case GL_SAMPLER_2D_ARRAY_SHADOW: + case GL_SAMPLER_CUBE_SHADOW: + case GL_IMAGE_2D: + case GL_INT_IMAGE_2D: + case GL_UNSIGNED_INT_IMAGE_2D: + case GL_IMAGE_3D: + case GL_INT_IMAGE_3D: + case GL_UNSIGNED_INT_IMAGE_3D: + case GL_IMAGE_2D_ARRAY: + case GL_INT_IMAGE_2D_ARRAY: + case GL_UNSIGNED_INT_IMAGE_2D_ARRAY: + case GL_IMAGE_CUBE: + case GL_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_IMAGE_CUBE: + case GL_UNSIGNED_INT_ATOMIC_COUNTER: + return 6; + + default: + UNREACHABLE(); + return 0; + } +} + +std::string ParseResourceName(const std::string &name, std::vector<unsigned int> *outSubscripts) +{ + if (outSubscripts) + { + outSubscripts->clear(); + } + // Strip any trailing array indexing operators and retrieve the subscripts. + size_t baseNameLength = name.length(); + bool hasIndex = true; + while (hasIndex) + { + size_t open = name.find_last_of('[', baseNameLength - 1); + size_t close = name.find_last_of(']', baseNameLength - 1); + hasIndex = (open != std::string::npos) && (close == baseNameLength - 1); + if (hasIndex) + { + baseNameLength = open; + if (outSubscripts) + { + int index = atoi(name.substr(open + 1).c_str()); + if (index >= 0) + { + outSubscripts->push_back(index); + } + else + { + outSubscripts->push_back(GL_INVALID_INDEX); + } + } + } + } + + return name.substr(0, baseNameLength); +} + +const sh::ShaderVariable *FindShaderVarField(const sh::ShaderVariable &var, + const std::string &fullName, + GLuint *fieldIndexOut) +{ + if (var.fields.empty()) + { + return nullptr; + } + size_t pos = fullName.find_first_of("."); + if (pos == std::string::npos) + { + return nullptr; + } + std::string topName = fullName.substr(0, pos); + if (topName != var.name) + { + return nullptr; + } + std::string fieldName = fullName.substr(pos + 1); + if (fieldName.empty()) + { + return nullptr; + } + for (size_t field = 0; field < var.fields.size(); ++field) + { + if (var.fields[field].name == fieldName) + { + *fieldIndexOut = static_cast<GLuint>(field); + return &var.fields[field]; + } + } + return nullptr; +} + +unsigned int ArraySizeProduct(const std::vector<unsigned int> &arraySizes) +{ + unsigned int arraySizeProduct = 1u; + for (unsigned int arraySize : arraySizes) + { + arraySizeProduct *= arraySize; + } + return arraySizeProduct; +} + +unsigned int ParseArrayIndex(const std::string &name, size_t *nameLengthWithoutArrayIndexOut) +{ + ASSERT(nameLengthWithoutArrayIndexOut != nullptr); + + // Strip any trailing array operator and retrieve the subscript + size_t open = name.find_last_of('['); + if (open != std::string::npos && name.back() == ']') + { + bool indexIsValidDecimalNumber = true; + for (size_t i = open + 1; i < name.length() - 1u; ++i) + { + if (!isdigit(name[i])) + { + indexIsValidDecimalNumber = false; + break; + } + } + if (indexIsValidDecimalNumber) + { + errno = 0; // reset global error flag. + unsigned long subscript = + strtoul(name.c_str() + open + 1, /*endptr*/ nullptr, /*radix*/ 10); + + // Check if resulting integer is out-of-range or conversion error. + if ((subscript <= static_cast<unsigned long>(UINT_MAX)) && + !(subscript == ULONG_MAX && errno == ERANGE) && !(errno != 0 && subscript == 0)) + { + *nameLengthWithoutArrayIndexOut = open; + return static_cast<unsigned int>(subscript); + } + } + } + + *nameLengthWithoutArrayIndexOut = name.length(); + return GL_INVALID_INDEX; +} + +const char *GetGenericErrorMessage(GLenum error) +{ + switch (error) + { + case GL_NO_ERROR: + return ""; + case GL_INVALID_ENUM: + return "Invalid enum."; + case GL_INVALID_VALUE: + return "Invalid value."; + case GL_INVALID_OPERATION: + return "Invalid operation."; + case GL_STACK_OVERFLOW: + return "Stack overflow."; + case GL_STACK_UNDERFLOW: + return "Stack underflow."; + case GL_OUT_OF_MEMORY: + return "Out of memory."; + case GL_INVALID_FRAMEBUFFER_OPERATION: + return "Invalid framebuffer operation."; + default: + UNREACHABLE(); + return "Unknown error."; + } +} + +unsigned int ElementTypeSize(GLenum elementType) +{ + switch (elementType) + { + case GL_UNSIGNED_BYTE: + return sizeof(GLubyte); + case GL_UNSIGNED_SHORT: + return sizeof(GLushort); + case GL_UNSIGNED_INT: + return sizeof(GLuint); + default: + UNREACHABLE(); + return 0; + } +} + +PipelineType GetPipelineType(ShaderType type) +{ + switch (type) + { + case ShaderType::Vertex: + case ShaderType::Fragment: + case ShaderType::Geometry: + return PipelineType::GraphicsPipeline; + case ShaderType::Compute: + return PipelineType::ComputePipeline; + default: + UNREACHABLE(); + return PipelineType::GraphicsPipeline; + } +} + +} // namespace gl + +namespace egl +{ +static_assert(EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR == 1, + "Unexpected EGL cube map enum value."); +static_assert(EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR == 2, + "Unexpected EGL cube map enum value."); +static_assert(EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR == 3, + "Unexpected EGL cube map enum value."); +static_assert(EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR == 4, + "Unexpected EGL cube map enum value."); +static_assert(EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR == 5, + "Unexpected EGL cube map enum value."); + +bool IsCubeMapTextureTarget(EGLenum target) +{ + return (target >= FirstCubeMapTextureTarget && target <= LastCubeMapTextureTarget); +} + +size_t CubeMapTextureTargetToLayerIndex(EGLenum target) +{ + ASSERT(IsCubeMapTextureTarget(target)); + return target - static_cast<size_t>(FirstCubeMapTextureTarget); +} + +EGLenum LayerIndexToCubeMapTextureTarget(size_t index) +{ + ASSERT(index <= (LastCubeMapTextureTarget - FirstCubeMapTextureTarget)); + return FirstCubeMapTextureTarget + static_cast<GLenum>(index); +} + +bool IsTextureTarget(EGLenum target) +{ + switch (target) + { + case EGL_GL_TEXTURE_2D_KHR: + case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR: + case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR: + case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR: + case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR: + case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR: + case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR: + case EGL_GL_TEXTURE_3D_KHR: + return true; + + default: + return false; + } +} + +bool IsRenderbufferTarget(EGLenum target) +{ + return target == EGL_GL_RENDERBUFFER_KHR; +} + +bool IsExternalImageTarget(EGLenum target) +{ + switch (target) + { + case EGL_NATIVE_BUFFER_ANDROID: + case EGL_D3D11_TEXTURE_ANGLE: + return true; + + default: + return false; + } +} + +const char *GetGenericErrorMessage(EGLint error) +{ + switch (error) + { + case EGL_SUCCESS: + return ""; + case EGL_NOT_INITIALIZED: + return "Not initialized."; + case EGL_BAD_ACCESS: + return "Bad access."; + case EGL_BAD_ALLOC: + return "Bad allocation."; + case EGL_BAD_ATTRIBUTE: + return "Bad attribute."; + case EGL_BAD_CONFIG: + return "Bad config."; + case EGL_BAD_CONTEXT: + return "Bad context."; + case EGL_BAD_CURRENT_SURFACE: + return "Bad current surface."; + case EGL_BAD_DISPLAY: + return "Bad display."; + case EGL_BAD_MATCH: + return "Bad match."; + case EGL_BAD_NATIVE_WINDOW: + return "Bad native window."; + case EGL_BAD_PARAMETER: + return "Bad parameter."; + case EGL_BAD_SURFACE: + return "Bad surface."; + case EGL_CONTEXT_LOST: + return "Context lost."; + case EGL_BAD_STREAM_KHR: + return "Bad stream."; + case EGL_BAD_STATE_KHR: + return "Bad state."; + case EGL_BAD_DEVICE_EXT: + return "Bad device."; + default: + UNREACHABLE(); + return "Unknown error."; + } +} + +} // namespace egl + +namespace egl_gl +{ +GLuint EGLClientBufferToGLObjectHandle(EGLClientBuffer buffer) +{ + return static_cast<GLuint>(reinterpret_cast<uintptr_t>(buffer)); +} +} // namespace egl_gl + +namespace gl_egl +{ +EGLenum GLComponentTypeToEGLColorComponentType(GLenum glComponentType) +{ + switch (glComponentType) + { + case GL_FLOAT: + return EGL_COLOR_COMPONENT_TYPE_FLOAT_EXT; + + case GL_UNSIGNED_NORMALIZED: + return EGL_COLOR_COMPONENT_TYPE_FIXED_EXT; + + default: + UNREACHABLE(); + return EGL_NONE; + } +} + +EGLClientBuffer GLObjectHandleToEGLClientBuffer(GLuint handle) +{ + return reinterpret_cast<EGLClientBuffer>(static_cast<uintptr_t>(handle)); +} + +} // namespace gl_egl + +#if !defined(ANGLE_ENABLE_WINDOWS_STORE) +std::string getTempPath() +{ +# ifdef ANGLE_PLATFORM_WINDOWS + char path[MAX_PATH]; + DWORD pathLen = GetTempPathA(sizeof(path) / sizeof(path[0]), path); + if (pathLen == 0) + { + UNREACHABLE(); + return std::string(); + } + + UINT unique = GetTempFileNameA(path, "sh", 0, path); + if (unique == 0) + { + UNREACHABLE(); + return std::string(); + } + + return path; +# else + UNIMPLEMENTED(); + return ""; +# endif +} + +void writeFile(const char *path, const void *content, size_t size) +{ + FILE *file = fopen(path, "w"); + if (!file) + { + UNREACHABLE(); + return; + } + + fwrite(content, sizeof(char), size, file); + fclose(file); +} +#endif // !ANGLE_ENABLE_WINDOWS_STORE + +#if defined(ANGLE_PLATFORM_WINDOWS) + +// Causes the thread to relinquish the remainder of its time slice to any +// other thread that is ready to run.If there are no other threads ready +// to run, the function returns immediately, and the thread continues execution. +void ScheduleYield() +{ + Sleep(0); +} + +#endif |