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//
// 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.h: Conversion functions and other utility routines.
#ifndef COMMON_UTILITIES_H_
#define COMMON_UTILITIES_H_
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <math.h>
#include <string>
#include <vector>
#include "angle_gl.h"
#include "common/mathutil.h"
namespace gl
{
int VariableComponentCount(GLenum type);
GLenum VariableComponentType(GLenum type);
size_t VariableComponentSize(GLenum type);
size_t VariableInternalSize(GLenum type);
size_t VariableExternalSize(GLenum type);
int VariableRowCount(GLenum type);
int VariableColumnCount(GLenum type);
bool IsSamplerType(GLenum type);
bool IsImageType(GLenum type);
bool IsAtomicCounterType(GLenum type);
bool IsOpaqueType(GLenum type);
GLenum SamplerTypeToTextureType(GLenum samplerType);
bool IsMatrixType(GLenum type);
GLenum TransposeMatrixType(GLenum type);
int VariableRegisterCount(GLenum type);
int MatrixRegisterCount(GLenum type, bool isRowMajorMatrix);
int MatrixComponentCount(GLenum type, bool isRowMajorMatrix);
int VariableSortOrder(GLenum type);
GLenum VariableBoolVectorType(GLenum type);
int AllocateFirstFreeBits(unsigned int *bits, unsigned int allocationSize, unsigned int bitsSize);
static const GLenum FirstCubeMapTextureTarget = GL_TEXTURE_CUBE_MAP_POSITIVE_X;
static const GLenum LastCubeMapTextureTarget = GL_TEXTURE_CUBE_MAP_NEGATIVE_Z;
bool IsCubeMapTextureTarget(GLenum target);
size_t CubeMapTextureTargetToLayerIndex(GLenum target);
GLenum LayerIndexToCubeMapTextureTarget(size_t index);
// Parse the base resource name and array indices. Returns the base name of the resource.
// If the provided name doesn't index an array, the outSubscripts vector will be empty.
// If the provided name indexes an array, the outSubscripts vector will contain indices with
// outermost array indices in the back. If an array index is invalid, GL_INVALID_INDEX is added to
// outSubscripts.
std::string ParseResourceName(const std::string &name, std::vector<unsigned int> *outSubscripts);
// Find the range of index values in the provided indices pointer. Primitive restart indices are
// only counted in the range if primitive restart is disabled.
IndexRange ComputeIndexRange(GLenum indexType,
const GLvoid *indices,
size_t count,
bool primitiveRestartEnabled);
// Get the primitive restart index value for the given index type.
GLuint GetPrimitiveRestartIndex(GLenum indexType);
bool IsTriangleMode(GLenum drawMode);
bool IsIntegerFormat(GLenum unsizedFormat);
// Returns the product of the sizes in the vector, or 1 if the vector is empty. Doesn't currently
// perform overflow checks.
unsigned int ArraySizeProduct(const std::vector<unsigned int> &arraySizes);
// Return the array index at the end of name, and write the length of name before the final array
// index into nameLengthWithoutArrayIndexOut. In case name doesn't include an array index, return
// GL_INVALID_INDEX and write the length of the original string.
unsigned int ParseArrayIndex(const std::string &name, size_t *nameLengthWithoutArrayIndexOut);
struct UniformTypeInfo final : angle::NonCopyable
{
constexpr UniformTypeInfo(GLenum type,
GLenum componentType,
GLenum samplerTextureType,
GLenum transposedMatrixType,
GLenum boolVectorType,
int rowCount,
int columnCount,
int componentCount,
size_t componentSize,
size_t internalSize,
size_t externalSize,
bool isSampler,
bool isMatrixType,
bool isImageType)
: type(type),
componentType(componentType),
samplerTextureType(samplerTextureType),
transposedMatrixType(transposedMatrixType),
boolVectorType(boolVectorType),
rowCount(rowCount),
columnCount(columnCount),
componentCount(componentCount),
componentSize(componentSize),
internalSize(internalSize),
externalSize(externalSize),
isSampler(isSampler),
isMatrixType(isMatrixType),
isImageType(isImageType)
{
}
GLenum type;
GLenum componentType;
GLenum samplerTextureType;
GLenum transposedMatrixType;
GLenum boolVectorType;
int rowCount;
int columnCount;
int componentCount;
size_t componentSize;
size_t internalSize;
size_t externalSize;
bool isSampler;
bool isMatrixType;
bool isImageType;
};
const UniformTypeInfo &GetUniformTypeInfo(GLenum uniformType);
const char *GetGenericErrorMessage(GLenum error);
unsigned int ElementTypeSize(GLenum elementType);
} // namespace gl
namespace egl
{
static const EGLenum FirstCubeMapTextureTarget = EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
static const EGLenum LastCubeMapTextureTarget = EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR;
bool IsCubeMapTextureTarget(EGLenum target);
size_t CubeMapTextureTargetToLayerIndex(EGLenum target);
EGLenum LayerIndexToCubeMapTextureTarget(size_t index);
bool IsTextureTarget(EGLenum target);
bool IsRenderbufferTarget(EGLenum target);
const char *GetGenericErrorMessage(EGLint error);
} // namespace egl
namespace egl_gl
{
GLenum EGLCubeMapTargetToGLCubeMapTarget(EGLenum eglTarget);
GLenum EGLImageTargetToGLTextureTarget(EGLenum eglTarget);
GLuint EGLClientBufferToGLObjectHandle(EGLClientBuffer buffer);
}
namespace gl_egl
{
EGLenum GLComponentTypeToEGLColorComponentType(GLenum glComponentType);
} // namespace gl_egl
#if !defined(ANGLE_ENABLE_WINDOWS_STORE)
std::string getTempPath();
void writeFile(const char* path, const void* data, size_t size);
#endif
#if defined (ANGLE_PLATFORM_WINDOWS)
void ScheduleYield();
#endif
#endif // COMMON_UTILITIES_H_
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