| /* |
| Simple DirectMedia Layer |
| Copyright (C) 1997-2021 Sam Lantinga <slouken@libsdl.org> |
| |
| This software is provided 'as-is', without any express or implied |
| warranty. In no event will the authors be held liable for any damages |
| arising from the use of this software. |
| |
| Permission is granted to anyone to use this software for any purpose, |
| including commercial applications, and to alter it and redistribute it |
| freely, subject to the following restrictions: |
| |
| 1. The origin of this software must not be misrepresented; you must not |
| claim that you wrote the original software. If you use this software |
| in a product, an acknowledgment in the product documentation would be |
| appreciated but is not required. |
| 2. Altered source versions must be plainly marked as such, and must not be |
| misrepresented as being the original software. |
| 3. This notice may not be removed or altered from any source distribution. |
| */ |
| |
| /** |
| * \file SDL_pixels.h |
| * |
| * Header for the enumerated pixel format definitions. |
| */ |
| |
| #ifndef SDL_pixels_h_ |
| #define SDL_pixels_h_ |
| |
| #include "SDL_stdinc.h" |
| #include "SDL_endian.h" |
| |
| #include "begin_code.h" |
| /* Set up for C function definitions, even when using C++ */ |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| /** |
| * \name Transparency definitions |
| * |
| * These define alpha as the opacity of a surface. |
| */ |
| /* @{ */ |
| #define SDL_ALPHA_OPAQUE 255 |
| #define SDL_ALPHA_TRANSPARENT 0 |
| /* @} */ |
| |
| /** Pixel type. */ |
| typedef enum |
| { |
| SDL_PIXELTYPE_UNKNOWN, |
| SDL_PIXELTYPE_INDEX1, |
| SDL_PIXELTYPE_INDEX4, |
| SDL_PIXELTYPE_INDEX8, |
| SDL_PIXELTYPE_PACKED8, |
| SDL_PIXELTYPE_PACKED16, |
| SDL_PIXELTYPE_PACKED32, |
| SDL_PIXELTYPE_ARRAYU8, |
| SDL_PIXELTYPE_ARRAYU16, |
| SDL_PIXELTYPE_ARRAYU32, |
| SDL_PIXELTYPE_ARRAYF16, |
| SDL_PIXELTYPE_ARRAYF32 |
| } SDL_PixelType; |
| |
| /** Bitmap pixel order, high bit -> low bit. */ |
| typedef enum |
| { |
| SDL_BITMAPORDER_NONE, |
| SDL_BITMAPORDER_4321, |
| SDL_BITMAPORDER_1234 |
| } SDL_BitmapOrder; |
| |
| /** Packed component order, high bit -> low bit. */ |
| typedef enum |
| { |
| SDL_PACKEDORDER_NONE, |
| SDL_PACKEDORDER_XRGB, |
| SDL_PACKEDORDER_RGBX, |
| SDL_PACKEDORDER_ARGB, |
| SDL_PACKEDORDER_RGBA, |
| SDL_PACKEDORDER_XBGR, |
| SDL_PACKEDORDER_BGRX, |
| SDL_PACKEDORDER_ABGR, |
| SDL_PACKEDORDER_BGRA |
| } SDL_PackedOrder; |
| |
| /** Array component order, low byte -> high byte. */ |
| /* !!! FIXME: in 2.1, make these not overlap differently with |
| !!! FIXME: SDL_PACKEDORDER_*, so we can simplify SDL_ISPIXELFORMAT_ALPHA */ |
| typedef enum |
| { |
| SDL_ARRAYORDER_NONE, |
| SDL_ARRAYORDER_RGB, |
| SDL_ARRAYORDER_RGBA, |
| SDL_ARRAYORDER_ARGB, |
| SDL_ARRAYORDER_BGR, |
| SDL_ARRAYORDER_BGRA, |
| SDL_ARRAYORDER_ABGR |
| } SDL_ArrayOrder; |
| |
| /** Packed component layout. */ |
| typedef enum |
| { |
| SDL_PACKEDLAYOUT_NONE, |
| SDL_PACKEDLAYOUT_332, |
| SDL_PACKEDLAYOUT_4444, |
| SDL_PACKEDLAYOUT_1555, |
| SDL_PACKEDLAYOUT_5551, |
| SDL_PACKEDLAYOUT_565, |
| SDL_PACKEDLAYOUT_8888, |
| SDL_PACKEDLAYOUT_2101010, |
| SDL_PACKEDLAYOUT_1010102 |
| } SDL_PackedLayout; |
| |
| #define SDL_DEFINE_PIXELFOURCC(A, B, C, D) SDL_FOURCC(A, B, C, D) |
| |
| #define SDL_DEFINE_PIXELFORMAT(type, order, layout, bits, bytes) \ |
| ((1 << 28) | ((type) << 24) | ((order) << 20) | ((layout) << 16) | \ |
| ((bits) << 8) | ((bytes) << 0)) |
| |
| #define SDL_PIXELFLAG(X) (((X) >> 28) & 0x0F) |
| #define SDL_PIXELTYPE(X) (((X) >> 24) & 0x0F) |
| #define SDL_PIXELORDER(X) (((X) >> 20) & 0x0F) |
| #define SDL_PIXELLAYOUT(X) (((X) >> 16) & 0x0F) |
| #define SDL_BITSPERPIXEL(X) (((X) >> 8) & 0xFF) |
| #define SDL_BYTESPERPIXEL(X) \ |
| (SDL_ISPIXELFORMAT_FOURCC(X) ? \ |
| ((((X) == SDL_PIXELFORMAT_YUY2) || \ |
| ((X) == SDL_PIXELFORMAT_UYVY) || \ |
| ((X) == SDL_PIXELFORMAT_YVYU)) ? 2 : 1) : (((X) >> 0) & 0xFF)) |
| |
| #define SDL_ISPIXELFORMAT_INDEXED(format) \ |
| (!SDL_ISPIXELFORMAT_FOURCC(format) && \ |
| ((SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX1) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX4) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX8))) |
| |
| #define SDL_ISPIXELFORMAT_PACKED(format) \ |
| (!SDL_ISPIXELFORMAT_FOURCC(format) && \ |
| ((SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED8) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED16) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED32))) |
| |
| #define SDL_ISPIXELFORMAT_ARRAY(format) \ |
| (!SDL_ISPIXELFORMAT_FOURCC(format) && \ |
| ((SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYU8) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYU16) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYU32) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYF16) || \ |
| (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYF32))) |
| |
| #define SDL_ISPIXELFORMAT_ALPHA(format) \ |
| ((SDL_ISPIXELFORMAT_PACKED(format) && \ |
| ((SDL_PIXELORDER(format) == SDL_PACKEDORDER_ARGB) || \ |
| (SDL_PIXELORDER(format) == SDL_PACKEDORDER_RGBA) || \ |
| (SDL_PIXELORDER(format) == SDL_PACKEDORDER_ABGR) || \ |
| (SDL_PIXELORDER(format) == SDL_PACKEDORDER_BGRA))) || \ |
| (SDL_ISPIXELFORMAT_ARRAY(format) && \ |
| ((SDL_PIXELORDER(format) == SDL_ARRAYORDER_ARGB) || \ |
| (SDL_PIXELORDER(format) == SDL_ARRAYORDER_RGBA) || \ |
| (SDL_PIXELORDER(format) == SDL_ARRAYORDER_ABGR) || \ |
| (SDL_PIXELORDER(format) == SDL_ARRAYORDER_BGRA)))) |
| |
| /* The flag is set to 1 because 0x1? is not in the printable ASCII range */ |
| #define SDL_ISPIXELFORMAT_FOURCC(format) \ |
| ((format) && (SDL_PIXELFLAG(format) != 1)) |
| |
| /* Note: If you modify this list, update SDL_GetPixelFormatName() */ |
| typedef enum |
| { |
| SDL_PIXELFORMAT_UNKNOWN, |
| SDL_PIXELFORMAT_INDEX1LSB = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX1, SDL_BITMAPORDER_4321, 0, |
| 1, 0), |
| SDL_PIXELFORMAT_INDEX1MSB = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX1, SDL_BITMAPORDER_1234, 0, |
| 1, 0), |
| SDL_PIXELFORMAT_INDEX4LSB = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX4, SDL_BITMAPORDER_4321, 0, |
| 4, 0), |
| SDL_PIXELFORMAT_INDEX4MSB = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX4, SDL_BITMAPORDER_1234, 0, |
| 4, 0), |
| SDL_PIXELFORMAT_INDEX8 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_INDEX8, 0, 0, 8, 1), |
| SDL_PIXELFORMAT_RGB332 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED8, SDL_PACKEDORDER_XRGB, |
| SDL_PACKEDLAYOUT_332, 8, 1), |
| SDL_PIXELFORMAT_XRGB4444 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XRGB, |
| SDL_PACKEDLAYOUT_4444, 12, 2), |
| SDL_PIXELFORMAT_RGB444 = SDL_PIXELFORMAT_XRGB4444, |
| SDL_PIXELFORMAT_XBGR4444 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XBGR, |
| SDL_PACKEDLAYOUT_4444, 12, 2), |
| SDL_PIXELFORMAT_BGR444 = SDL_PIXELFORMAT_XBGR4444, |
| SDL_PIXELFORMAT_XRGB1555 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XRGB, |
| SDL_PACKEDLAYOUT_1555, 15, 2), |
| SDL_PIXELFORMAT_RGB555 = SDL_PIXELFORMAT_XRGB1555, |
| SDL_PIXELFORMAT_XBGR1555 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XBGR, |
| SDL_PACKEDLAYOUT_1555, 15, 2), |
| SDL_PIXELFORMAT_BGR555 = SDL_PIXELFORMAT_XBGR1555, |
| SDL_PIXELFORMAT_ARGB4444 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_ARGB, |
| SDL_PACKEDLAYOUT_4444, 16, 2), |
| SDL_PIXELFORMAT_RGBA4444 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_RGBA, |
| SDL_PACKEDLAYOUT_4444, 16, 2), |
| SDL_PIXELFORMAT_ABGR4444 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_ABGR, |
| SDL_PACKEDLAYOUT_4444, 16, 2), |
| SDL_PIXELFORMAT_BGRA4444 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_BGRA, |
| SDL_PACKEDLAYOUT_4444, 16, 2), |
| SDL_PIXELFORMAT_ARGB1555 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_ARGB, |
| SDL_PACKEDLAYOUT_1555, 16, 2), |
| SDL_PIXELFORMAT_RGBA5551 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_RGBA, |
| SDL_PACKEDLAYOUT_5551, 16, 2), |
| SDL_PIXELFORMAT_ABGR1555 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_ABGR, |
| SDL_PACKEDLAYOUT_1555, 16, 2), |
| SDL_PIXELFORMAT_BGRA5551 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_BGRA, |
| SDL_PACKEDLAYOUT_5551, 16, 2), |
| SDL_PIXELFORMAT_RGB565 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XRGB, |
| SDL_PACKEDLAYOUT_565, 16, 2), |
| SDL_PIXELFORMAT_BGR565 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED16, SDL_PACKEDORDER_XBGR, |
| SDL_PACKEDLAYOUT_565, 16, 2), |
| SDL_PIXELFORMAT_RGB24 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_ARRAYU8, SDL_ARRAYORDER_RGB, 0, |
| 24, 3), |
| SDL_PIXELFORMAT_BGR24 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_ARRAYU8, SDL_ARRAYORDER_BGR, 0, |
| 24, 3), |
| SDL_PIXELFORMAT_XRGB8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_XRGB, |
| SDL_PACKEDLAYOUT_8888, 24, 4), |
| SDL_PIXELFORMAT_RGB888 = SDL_PIXELFORMAT_XRGB8888, |
| SDL_PIXELFORMAT_RGBX8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_RGBX, |
| SDL_PACKEDLAYOUT_8888, 24, 4), |
| SDL_PIXELFORMAT_XBGR8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_XBGR, |
| SDL_PACKEDLAYOUT_8888, 24, 4), |
| SDL_PIXELFORMAT_BGR888 = SDL_PIXELFORMAT_XBGR8888, |
| SDL_PIXELFORMAT_BGRX8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_BGRX, |
| SDL_PACKEDLAYOUT_8888, 24, 4), |
| SDL_PIXELFORMAT_ARGB8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_ARGB, |
| SDL_PACKEDLAYOUT_8888, 32, 4), |
| SDL_PIXELFORMAT_RGBA8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_RGBA, |
| SDL_PACKEDLAYOUT_8888, 32, 4), |
| SDL_PIXELFORMAT_ABGR8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_ABGR, |
| SDL_PACKEDLAYOUT_8888, 32, 4), |
| SDL_PIXELFORMAT_BGRA8888 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_BGRA, |
| SDL_PACKEDLAYOUT_8888, 32, 4), |
| SDL_PIXELFORMAT_ARGB2101010 = |
| SDL_DEFINE_PIXELFORMAT(SDL_PIXELTYPE_PACKED32, SDL_PACKEDORDER_ARGB, |
| SDL_PACKEDLAYOUT_2101010, 32, 4), |
| |
| /* Aliases for RGBA byte arrays of color data, for the current platform */ |
| #if SDL_BYTEORDER == SDL_BIG_ENDIAN |
| SDL_PIXELFORMAT_RGBA32 = SDL_PIXELFORMAT_RGBA8888, |
| SDL_PIXELFORMAT_ARGB32 = SDL_PIXELFORMAT_ARGB8888, |
| SDL_PIXELFORMAT_BGRA32 = SDL_PIXELFORMAT_BGRA8888, |
| SDL_PIXELFORMAT_ABGR32 = SDL_PIXELFORMAT_ABGR8888, |
| #else |
| SDL_PIXELFORMAT_RGBA32 = SDL_PIXELFORMAT_ABGR8888, |
| SDL_PIXELFORMAT_ARGB32 = SDL_PIXELFORMAT_BGRA8888, |
| SDL_PIXELFORMAT_BGRA32 = SDL_PIXELFORMAT_ARGB8888, |
| SDL_PIXELFORMAT_ABGR32 = SDL_PIXELFORMAT_RGBA8888, |
| #endif |
| |
| SDL_PIXELFORMAT_YV12 = /**< Planar mode: Y + V + U (3 planes) */ |
| SDL_DEFINE_PIXELFOURCC('Y', 'V', '1', '2'), |
| SDL_PIXELFORMAT_IYUV = /**< Planar mode: Y + U + V (3 planes) */ |
| SDL_DEFINE_PIXELFOURCC('I', 'Y', 'U', 'V'), |
| SDL_PIXELFORMAT_YUY2 = /**< Packed mode: Y0+U0+Y1+V0 (1 plane) */ |
| SDL_DEFINE_PIXELFOURCC('Y', 'U', 'Y', '2'), |
| SDL_PIXELFORMAT_UYVY = /**< Packed mode: U0+Y0+V0+Y1 (1 plane) */ |
| SDL_DEFINE_PIXELFOURCC('U', 'Y', 'V', 'Y'), |
| SDL_PIXELFORMAT_YVYU = /**< Packed mode: Y0+V0+Y1+U0 (1 plane) */ |
| SDL_DEFINE_PIXELFOURCC('Y', 'V', 'Y', 'U'), |
| SDL_PIXELFORMAT_NV12 = /**< Planar mode: Y + U/V interleaved (2 planes) */ |
| SDL_DEFINE_PIXELFOURCC('N', 'V', '1', '2'), |
| SDL_PIXELFORMAT_NV21 = /**< Planar mode: Y + V/U interleaved (2 planes) */ |
| SDL_DEFINE_PIXELFOURCC('N', 'V', '2', '1'), |
| SDL_PIXELFORMAT_EXTERNAL_OES = /**< Android video texture format */ |
| SDL_DEFINE_PIXELFOURCC('O', 'E', 'S', ' ') |
| } SDL_PixelFormatEnum; |
| |
| typedef struct SDL_Color |
| { |
| Uint8 r; |
| Uint8 g; |
| Uint8 b; |
| Uint8 a; |
| } SDL_Color; |
| #define SDL_Colour SDL_Color |
| |
| typedef struct SDL_Palette |
| { |
| int ncolors; |
| SDL_Color *colors; |
| Uint32 version; |
| int refcount; |
| } SDL_Palette; |
| |
| /** |
| * \note Everything in the pixel format structure is read-only. |
| */ |
| typedef struct SDL_PixelFormat |
| { |
| Uint32 format; |
| SDL_Palette *palette; |
| Uint8 BitsPerPixel; |
| Uint8 BytesPerPixel; |
| Uint8 padding[2]; |
| Uint32 Rmask; |
| Uint32 Gmask; |
| Uint32 Bmask; |
| Uint32 Amask; |
| Uint8 Rloss; |
| Uint8 Gloss; |
| Uint8 Bloss; |
| Uint8 Aloss; |
| Uint8 Rshift; |
| Uint8 Gshift; |
| Uint8 Bshift; |
| Uint8 Ashift; |
| int refcount; |
| struct SDL_PixelFormat *next; |
| } SDL_PixelFormat; |
| |
| /** |
| * \brief Get the human readable name of a pixel format |
| */ |
| extern DECLSPEC const char* SDLCALL SDL_GetPixelFormatName(Uint32 format); |
| |
| /** |
| * \brief Convert one of the enumerated pixel formats to a bpp and RGBA masks. |
| * |
| * \return SDL_TRUE, or SDL_FALSE if the conversion wasn't possible. |
| * |
| * \sa SDL_MasksToPixelFormatEnum() |
| */ |
| extern DECLSPEC SDL_bool SDLCALL SDL_PixelFormatEnumToMasks(Uint32 format, |
| int *bpp, |
| Uint32 * Rmask, |
| Uint32 * Gmask, |
| Uint32 * Bmask, |
| Uint32 * Amask); |
| |
| /** |
| * \brief Convert a bpp and RGBA masks to an enumerated pixel format. |
| * |
| * \return The pixel format, or ::SDL_PIXELFORMAT_UNKNOWN if the conversion |
| * wasn't possible. |
| * |
| * \sa SDL_PixelFormatEnumToMasks() |
| */ |
| extern DECLSPEC Uint32 SDLCALL SDL_MasksToPixelFormatEnum(int bpp, |
| Uint32 Rmask, |
| Uint32 Gmask, |
| Uint32 Bmask, |
| Uint32 Amask); |
| |
| /** |
| * \brief Create an SDL_PixelFormat structure from a pixel format enum. |
| */ |
| extern DECLSPEC SDL_PixelFormat * SDLCALL SDL_AllocFormat(Uint32 pixel_format); |
| |
| /** |
| * \brief Free an SDL_PixelFormat structure. |
| */ |
| extern DECLSPEC void SDLCALL SDL_FreeFormat(SDL_PixelFormat *format); |
| |
| /** |
| * \brief Create a palette structure with the specified number of color |
| * entries. |
| * |
| * \return A new palette, or NULL if there wasn't enough memory. |
| * |
| * \note The palette entries are initialized to white. |
| * |
| * \sa SDL_FreePalette() |
| */ |
| extern DECLSPEC SDL_Palette *SDLCALL SDL_AllocPalette(int ncolors); |
| |
| /** |
| * \brief Set the palette for a pixel format structure. |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetPixelFormatPalette(SDL_PixelFormat * format, |
| SDL_Palette *palette); |
| |
| /** |
| * \brief Set a range of colors in a palette. |
| * |
| * \param palette The palette to modify. |
| * \param colors An array of colors to copy into the palette. |
| * \param firstcolor The index of the first palette entry to modify. |
| * \param ncolors The number of entries to modify. |
| * |
| * \return 0 on success, or -1 if not all of the colors could be set. |
| */ |
| extern DECLSPEC int SDLCALL SDL_SetPaletteColors(SDL_Palette * palette, |
| const SDL_Color * colors, |
| int firstcolor, int ncolors); |
| |
| /** |
| * \brief Free a palette created with SDL_AllocPalette(). |
| * |
| * \sa SDL_AllocPalette() |
| */ |
| extern DECLSPEC void SDLCALL SDL_FreePalette(SDL_Palette * palette); |
| |
| /** |
| * \brief Maps an RGB triple to an opaque pixel value for a given pixel format. |
| * |
| * \sa SDL_MapRGBA |
| */ |
| extern DECLSPEC Uint32 SDLCALL SDL_MapRGB(const SDL_PixelFormat * format, |
| Uint8 r, Uint8 g, Uint8 b); |
| |
| /** |
| * \brief Maps an RGBA quadruple to a pixel value for a given pixel format. |
| * |
| * \sa SDL_MapRGB |
| */ |
| extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(const SDL_PixelFormat * format, |
| Uint8 r, Uint8 g, Uint8 b, |
| Uint8 a); |
| |
| /** |
| * \brief Get the RGB components from a pixel of the specified format. |
| * |
| * \sa SDL_GetRGBA |
| */ |
| extern DECLSPEC void SDLCALL SDL_GetRGB(Uint32 pixel, |
| const SDL_PixelFormat * format, |
| Uint8 * r, Uint8 * g, Uint8 * b); |
| |
| /** |
| * \brief Get the RGBA components from a pixel of the specified format. |
| * |
| * \sa SDL_GetRGB |
| */ |
| extern DECLSPEC void SDLCALL SDL_GetRGBA(Uint32 pixel, |
| const SDL_PixelFormat * format, |
| Uint8 * r, Uint8 * g, Uint8 * b, |
| Uint8 * a); |
| |
| /** |
| * \brief Calculate a 256 entry gamma ramp for a gamma value. |
| */ |
| extern DECLSPEC void SDLCALL SDL_CalculateGammaRamp(float gamma, Uint16 * ramp); |
| |
| |
| /* Ends C function definitions when using C++ */ |
| #ifdef __cplusplus |
| } |
| #endif |
| #include "close_code.h" |
| |
| #endif /* SDL_pixels_h_ */ |
| |
| /* vi: set ts=4 sw=4 expandtab: */ |
