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//
// Copyright (c) 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.
//
// formatutils.h: Queries for GL image formats.
#ifndef LIBGLESV2_FORMATUTILS_H_
#define LIBGLESV2_FORMATUTILS_H_
#include "libGLESv2/Caps.h"
#include "libGLESv2/angletypes.h"
#include "angle_gl.h"
#include <cstddef>
#include <cstdint>
typedef void (*MipGenerationFunction)(size_t sourceWidth, size_t sourceHeight, size_t sourceDepth,
const uint8_t *sourceData, size_t sourceRowPitch, size_t sourceDepthPitch,
uint8_t *destData, size_t destRowPitch, size_t destDepthPitch);
typedef void (*LoadImageFunction)(size_t width, size_t height, size_t depth,
const uint8_t *input, size_t inputRowPitch, size_t inputDepthPitch,
uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch);
typedef void (*InitializeTextureDataFunction)(size_t width, size_t height, size_t depth,
uint8_t *output, size_t outputRowPitch, size_t outputDepthPitch);
typedef void (*ColorReadFunction)(const uint8_t *source, uint8_t *dest);
typedef void (*ColorWriteFunction)(const uint8_t *source, uint8_t *dest);
typedef void (*ColorCopyFunction)(const uint8_t *source, uint8_t *dest);
typedef void (*VertexCopyFunction)(const uint8_t *input, size_t stride, size_t count, uint8_t *output);
namespace gl
{
struct FormatType
{
FormatType();
GLenum internalFormat;
ColorWriteFunction colorWriteFunction;
};
const FormatType &GetFormatTypeInfo(GLenum format, GLenum type);
struct Type
{
Type();
GLuint bytes;
bool specialInterpretation;
};
const Type &GetTypeInfo(GLenum type);
struct InternalFormat
{
InternalFormat();
GLuint redBits;
GLuint greenBits;
GLuint blueBits;
GLuint luminanceBits;
GLuint alphaBits;
GLuint sharedBits;
GLuint depthBits;
GLuint stencilBits;
GLuint pixelBytes;
GLuint componentCount;
bool compressed;
GLuint compressedBlockWidth;
GLuint compressedBlockHeight;
GLenum format;
GLenum type;
GLenum componentType;
GLenum colorEncoding;
typedef bool (*SupportCheckFunction)(GLuint, const Extensions &);
SupportCheckFunction textureSupport;
SupportCheckFunction renderSupport;
SupportCheckFunction filterSupport;
GLuint computeRowPitch(GLenum type, GLsizei width, GLint alignment) const;
GLuint computeDepthPitch(GLenum type, GLsizei width, GLsizei height, GLint alignment) const;
GLuint computeBlockSize(GLenum type, GLsizei width, GLsizei height) const;
};
const InternalFormat &GetInternalFormatInfo(GLenum internalFormat);
GLenum GetSizedInternalFormat(GLenum internalFormat, GLenum type);
typedef std::set<GLenum> FormatSet;
const FormatSet &GetAllSizedInternalFormats();
}
#endif // LIBGLESV2_FORMATUTILS_H_
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