381 lines
11 KiB
C
381 lines
11 KiB
C
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/*
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* Copyright 2011-2016 Branimir Karadzic. All rights reserved.
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* License: https://github.com/bkaradzic/bgfx#license-bsd-2-clause
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*/
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#ifndef BGFX_IMAGE_H_HEADER_GUARD
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#define BGFX_IMAGE_H_HEADER_GUARD
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#include <stdint.h>
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namespace bgfx
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{
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struct ImageContainer
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{
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void* m_data;
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TextureFormat::Enum m_format;
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uint32_t m_size;
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uint32_t m_offset;
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uint32_t m_width;
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uint32_t m_height;
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uint32_t m_depth;
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uint16_t m_numLayers;
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uint8_t m_numMips;
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bool m_hasAlpha;
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bool m_cubeMap;
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bool m_ktx;
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bool m_ktxLE;
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bool m_srgb;
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};
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struct ImageMip
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{
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TextureFormat::Enum m_format;
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uint32_t m_width;
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uint32_t m_height;
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uint32_t m_blockSize;
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uint32_t m_size;
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uint8_t m_bpp;
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bool m_hasAlpha;
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const uint8_t* m_data;
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};
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struct EncodingType
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{
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enum Enum
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{
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Unorm,
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Int,
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Uint,
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Float,
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Snorm,
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Count
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};
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};
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struct ImageBlockInfo
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{
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uint8_t bitsPerPixel;
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uint8_t blockWidth;
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uint8_t blockHeight;
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uint8_t blockSize;
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uint8_t minBlockX;
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uint8_t minBlockY;
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uint8_t depthBits;
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uint8_t stencilBits;
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uint8_t rBits;
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uint8_t gBits;
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uint8_t bBits;
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uint8_t aBits;
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uint8_t encoding;
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};
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typedef void (*PackFn)(void*, const float*);
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typedef void (*UnpackFn)(float*, const void*);
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// R8
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void packR8(void* _dst, const float* _src);
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void unpackR8(float* _dst, const void* _src);
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// R8S
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void packR8S(void* _dst, const float* _src);
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void unpackR8S(float* _dst, const void* _src);
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// R8I
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void packR8I(void* _dst, const float* _src);
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void unpackR8I(float* _dst, const void* _src);
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// R8U
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void packR8U(void* _dst, const float* _src);
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void unpackR8U(float* _dst, const void* _src);
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// RG8
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void packRg8(void* _dst, const float* _src);
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void unpackRg8(float* _dst, const void* _src);
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// RG8S
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void packRg8S(void* _dst, const float* _src);
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void unpackRg8S(float* _dst, const void* _src);
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// RG8I
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void packRg8I(void* _dst, const float* _src);
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void unpackRg8I(float* _dst, const void* _src);
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// RG8U
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void packRg8U(void* _dst, const float* _src);
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void unpackRg8U(float* _dst, const void* _src);
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// RGB8
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void packRgb8(void* _dst, const float* _src);
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void unpackRgb8(float* _dst, const void* _src);
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// RGB8S
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void packRgb8S(void* _dst, const float* _src);
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void unpackRgb8S(float* _dst, const void* _src);
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// RGB8I
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void packRgb8I(void* _dst, const float* _src);
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void unpackRgb8I(float* _dst, const void* _src);
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// RGB8U
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void packRgb8U(void* _dst, const float* _src);
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void unpackRgb8U(float* _dst, const void* _src);
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// RGBA8
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void packRgba8(void* _dst, const float* _src);
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void unpackRgba8(float* _dst, const void* _src);
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// BGRA8
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void packBgra8(void* _dst, const float* _src);
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void unpackBgra8(float* _dst, const void* _src);
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// RGBA8S
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void packRgba8S(void* _dst, const float* _src);
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void unpackRgba8S(float* _dst, const void* _src);
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// RGBA8I
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void packRgba8I(void* _dst, const float* _src);
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void unpackRgba8I(float* _dst, const void* _src);
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// RGBA8U
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void packRgba8U(void* _dst, const float* _src);
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void unpackRgba8U(float* _dst, const void* _src);
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// R16
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void packR16(void* _dst, const float* _src);
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void unpackR16(float* _dst, const void* _src);
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// R16S
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void packR16S(void* _dst, const float* _src);
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void unpackR16S(float* _dst, const void* _src);
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// R16I
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void packR16I(void* _dst, const float* _src);
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void unpackR16I(float* _dst, const void* _src);
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// R16U
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void packR16U(void* _dst, const float* _src);
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void unpackR16U(float* _dst, const void* _src);
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// R16F
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void packR16F(void* _dst, const float* _src);
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void unpackR16F(float* _dst, const void* _src);
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// RG16
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void packRg16(void* _dst, const float* _src);
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void unpackRg16(float* _dst, const void* _src);
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// RG16S
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void packRg16S(void* _dst, const float* _src);
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void unpackRg16S(float* _dst, const void* _src);
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// RG16I
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void packRg16I(void* _dst, const float* _src);
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void unpackRg16I(float* _dst, const void* _src);
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// RG16U
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void packRg16U(void* _dst, const float* _src);
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void unpackRg16U(float* _dst, const void* _src);
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// RG16F
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void packRg16F(void* _dst, const float* _src);
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void unpackRg16F(float* _dst, const void* _src);
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// RGBA16
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void packRgba16(void* _dst, const float* _src);
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void unpackRgba16(float* _dst, const void* _src);
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// RGBA16S
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void packRgba16S(void* _dst, const float* _src);
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void unpackRgba16S(float* _dst, const void* _src);
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// RGBA16I
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void packRgba16I(void* _dst, const float* _src);
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void unpackRgba16I(float* _dst, const void* _src);
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// RGBA16U
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void packRgba16U(void* _dst, const float* _src);
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void unpackRgba16U(float* _dst, const void* _src);
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// RGBA16F
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void packRgba16F(void* _dst, const float* _src);
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void unpackRgba16F(float* _dst, const void* _src);
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// R32I
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void packR32I(void* _dst, const float* _src);
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void unpackR32I(float* _dst, const void* _src);
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// R32U
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void packR32U(void* _dst, const float* _src);
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void unpackR32U(float* _dst, const void* _src);
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// R32F
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void packR32F(void* _dst, const float* _src);
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void unpackR32F(float* _dst, const void* _src);
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// RG32I
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void packRg32I(void* _dst, const float* _src);
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void unpackRg32I(float* _dst, const void* _src);
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// RG32U
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void packRg32U(void* _dst, const float* _src);
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void unpackRg32U(float* _dst, const void* _src);
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// RGB9E5F
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void packRgb9E5F(void* _dst, const float* _src);
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void unpackRgb9E5F(float* _dst, const void* _src);
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// RGBA32I
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void packRgba32I(void* _dst, const float* _src);
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void unpackRgba32I(float* _dst, const void* _src);
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// RGBA32U
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void packRgba32U(void* _dst, const float* _src);
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void unpackRgba32U(float* _dst, const void* _src);
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// RGBA32F
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void packRgba32F(void* _dst, const float* _src);
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void unpackRgba32F(float* _dst, const void* _src);
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// R5G6B5
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void packR5G6B5(void* _dst, const float* _src);
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void unpackR5G6B5(float* _dst, const void* _src);
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// RGBA4
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void packRgba4(void* _dst, const float* _src);
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void unpackRgba4(float* _dst, const void* _src);
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// RGBA4
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void packBgra4(void* _dst, const float* _src);
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void unpackBgra4(float* _dst, const void* _src);
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// RGB5A1
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void packRgb5a1(void* _dst, const float* _src);
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void unpackRgb5a1(float* _dst, const void* _src);
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// BGR5A1
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void packBgr5a1(void* _dst, const float* _src);
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void unpackBgr5a1(float* _dst, const void* _src);
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// RGB10A2
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void packRgb10A2(void* _dst, const float* _src);
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void unpackRgb10A2(float* _dst, const void* _src);
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// R11G11B10F
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void packR11G11B10F(void* _dst, const float* _src);
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void unpackR11G11B10F(float* _dst, const void* _src);
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// RG32F
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void packRg32F(void* _dst, const float* _src);
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void unpackRg32F(float* _dst, const void* _src);
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/// Returns true if texture format is compressed.
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bool isCompressed(TextureFormat::Enum _format);
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/// Returns true if texture format is uncompressed.
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bool isColor(TextureFormat::Enum _format);
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/// Returns true if texture format is depth.
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bool isDepth(TextureFormat::Enum _format);
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/// Returns true if texture format is valid.
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bool isValid(TextureFormat::Enum _format);
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/// Returns bits per pixel.
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uint8_t getBitsPerPixel(TextureFormat::Enum _format);
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/// Returns texture block info.
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const ImageBlockInfo& getBlockInfo(TextureFormat::Enum _format);
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/// Converts format to string.
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const char* getName(TextureFormat::Enum _format);
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/// Converts string to format.
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TextureFormat::Enum getFormat(const char* _name);
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/// Returns number of mip-maps required for complete mip-map chain.
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uint8_t imageGetNumMips(TextureFormat::Enum _format, uint16_t _width, uint16_t _height, uint16_t _depth = 0);
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/// Returns image size.
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uint32_t imageGetSize(TextureFormat::Enum _format, uint16_t _width, uint16_t _height, uint16_t _depth = 0, uint16_t _numLayers = 0, bool _cubeMap = false, uint8_t _numMips = 0);
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///
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void imageSolid(uint32_t _width, uint32_t _height, uint32_t _solid, void* _dst);
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///
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void imageCheckerboard(uint32_t _width, uint32_t _height, uint32_t _step, uint32_t _0, uint32_t _1, void* _dst);
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///
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void imageRgba8Downsample2x2(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);
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///
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void imageRgba32fToLinear(void* _dst, uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src);
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///
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void imageRgba32fToGamma(void* _dst, uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src);
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///
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void imageRgba32fLinearDownsample2x2(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);
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///
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void imageRgba32fDownsample2x2NormalMap(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);
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///
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void imageSwizzleBgra8(uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, void* _dst);
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///
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void imageCopy(uint32_t _height, uint32_t _srcPitch, const void* _src, uint32_t _dstPitch, void* _dst);
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///
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void imageCopy(uint32_t _width, uint32_t _height, uint32_t _bpp, uint32_t _pitch, const void* _src, void* _dst);
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///
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bool imageConvert(TextureFormat::Enum _dstFormat, TextureFormat::Enum _srcFormat);
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///
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void imageConvert(void* _dst, uint32_t _bpp, PackFn _pack, const void* _src, UnpackFn _unpack, uint32_t _size);
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///
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void imageConvert(void* _dst, uint32_t _dstBpp, PackFn _pack, const void* _src, uint32_t _srcBpp, UnpackFn _unpack, uint32_t _width, uint32_t _height, uint32_t _srcPitch);
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///
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bool imageConvert(void* _dst, TextureFormat::Enum _dstFormat, const void* _src, TextureFormat::Enum _srcFormat, uint32_t _width, uint32_t _height);
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///
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const Memory* imageAlloc(ImageContainer& _imageContainer, TextureFormat::Enum _format, uint16_t _width, uint16_t _height, uint16_t _depth = 0, uint16_t _numLayers = 0, bool _cubeMap = false, bool _generateMips = false);
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///
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void imageFree(const Memory* _memory);
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///
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void imageWriteTga(bx::WriterI* _writer, uint32_t _width, uint32_t _height, uint32_t _pitch, const void* _src, bool _grayscale, bool _yflip, bx::Error* _err = NULL);
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///
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void imageWriteKtx(bx::WriterI* _writer, TextureFormat::Enum _format, bool _cubeMap, uint32_t _width, uint32_t _height, uint32_t _depth, uint8_t _numMips, const void* _src, bx::Error* _err = NULL);
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///
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void imageWriteKtx(bx::WriterI* _writer, ImageContainer& _imageContainer, const void* _data, uint32_t _size, bx::Error* _err = NULL);
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///
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bool imageParse(ImageContainer& _imageContainer, bx::ReaderSeekerI* _reader);
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///
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bool imageParse(ImageContainer& _imageContainer, const void* _data, uint32_t _size);
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///
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void imageDecodeToBgra8(void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _pitch, TextureFormat::Enum _format);
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///
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void imageDecodeToRgba8(void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _pitch, TextureFormat::Enum _format);
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///
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void imageDecodeToRgba32f(bx::AllocatorI* _allocator, void* _dst, const void* _src, uint32_t _width, uint32_t _height, uint32_t _pitch, TextureFormat::Enum _format);
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///
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bool imageGetRawData(const ImageContainer& _imageContainer, uint16_t _side, uint8_t _index, const void* _data, uint32_t _size, ImageMip& _mip);
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} // namespace bgfx
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#endif // BGFX_IMAGE_H_HEADER_GUARD
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