46 #define SDL_ALPHA_OPAQUE 255 47 #define SDL_ALPHA_TRANSPARENT 0 117 #define SDL_DEFINE_PIXELFOURCC(A, B, C, D) SDL_FOURCC(A, B, C, D) 119 #define SDL_DEFINE_PIXELFORMAT(type, order, layout, bits, bytes) \ 120 ((1 << 28) | ((type) << 24) | ((order) << 20) | ((layout) << 16) | \ 121 ((bits) << 8) | ((bytes) << 0)) 123 #define SDL_PIXELFLAG(X) (((X) >> 28) & 0x0F) 124 #define SDL_PIXELTYPE(X) (((X) >> 24) & 0x0F) 125 #define SDL_PIXELORDER(X) (((X) >> 20) & 0x0F) 126 #define SDL_PIXELLAYOUT(X) (((X) >> 16) & 0x0F) 127 #define SDL_BITSPERPIXEL(X) (((X) >> 8) & 0xFF) 128 #define SDL_BYTESPERPIXEL(X) \ 129 (SDL_ISPIXELFORMAT_FOURCC(X) ? \ 130 ((((X) == SDL_PIXELFORMAT_YUY2) || \ 131 ((X) == SDL_PIXELFORMAT_UYVY) || \ 132 ((X) == SDL_PIXELFORMAT_YVYU)) ? 2 : 1) : (((X) >> 0) & 0xFF)) 134 #define SDL_ISPIXELFORMAT_INDEXED(format) \ 135 (!SDL_ISPIXELFORMAT_FOURCC(format) && \ 136 ((SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX1) || \ 137 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX4) || \ 138 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_INDEX8))) 140 #define SDL_ISPIXELFORMAT_PACKED(format) \ 141 (!SDL_ISPIXELFORMAT_FOURCC(format) && \ 142 ((SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED8) || \ 143 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED16) || \ 144 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_PACKED32))) 146 #define SDL_ISPIXELFORMAT_ARRAY(format) \ 147 (!SDL_ISPIXELFORMAT_FOURCC(format) && \ 148 ((SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYU8) || \ 149 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYU16) || \ 150 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYU32) || \ 151 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYF16) || \ 152 (SDL_PIXELTYPE(format) == SDL_PIXELTYPE_ARRAYF32))) 154 #define SDL_ISPIXELFORMAT_ALPHA(format) \ 155 ((SDL_ISPIXELFORMAT_PACKED(format) && \ 156 ((SDL_PIXELORDER(format) == SDL_PACKEDORDER_ARGB) || \ 157 (SDL_PIXELORDER(format) == SDL_PACKEDORDER_RGBA) || \ 158 (SDL_PIXELORDER(format) == SDL_PACKEDORDER_ABGR) || \ 159 (SDL_PIXELORDER(format) == SDL_PACKEDORDER_BGRA))) || \ 160 (SDL_ISPIXELFORMAT_ARRAY(format) && \ 161 ((SDL_PIXELORDER(format) == SDL_ARRAYORDER_ARGB) || \ 162 (SDL_PIXELORDER(format) == SDL_ARRAYORDER_RGBA) || \ 163 (SDL_PIXELORDER(format) == SDL_ARRAYORDER_ABGR) || \ 164 (SDL_PIXELORDER(format) == SDL_ARRAYORDER_BGRA)))) 167 #define SDL_ISPIXELFORMAT_FOURCC(format) \ 168 ((format) && (SDL_PIXELFLAG(format) != 1)) 265 #if SDL_BYTEORDER == SDL_BIG_ENDIAN 302 #define SDL_Colour SDL_Color 411 int firstcolor,
int ncolors);
Uint32 SDL_MapRGBA(const SDL_PixelFormat *format, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
Maps an RGBA quadruple to a pixel value for a given pixel format.
void SDL_GetRGBA(Uint32 pixel, const SDL_PixelFormat *format, Uint8 *r, Uint8 *g, Uint8 *b, Uint8 *a)
Get the RGBA components from a pixel of the specified format.
GLdouble GLdouble GLdouble r
SDL_PixelFormat * SDL_AllocFormat(Uint32 pixel_format)
Create an SDL_PixelFormat structure from a pixel format enum.
void SDL_FreeFormat(SDL_PixelFormat *format)
Free an SDL_PixelFormat structure.
set set set set set set set macro pixldst1 abits if abits op else op endif endm macro pixldst2 abits if abits op else op endif endm macro pixldst4 abits if abits op else op endif endm macro pixldst0 abits op endm macro pixldst3 mem_operand op endm macro pixldst30 mem_operand op endm macro pixldst abits if abits elseif abits elseif abits elseif abits elseif abits pixldst0 abits else pixldst0 abits pixldst0 abits pixldst0 abits pixldst0 abits endif elseif abits else pixldst0 abits pixldst0 abits endif elseif abits else error unsupported bpp
void SDL_FreePalette(SDL_Palette *palette)
Free a palette created with SDL_AllocPalette().
#define SDL_DEFINE_PIXELFOURCC(A, B, C, D)
GLint GLint GLsizei GLsizei GLsizei GLint GLenum format
Uint32 SDL_MasksToPixelFormatEnum(int bpp, Uint32 Rmask, Uint32 Gmask, Uint32 Bmask, Uint32 Amask)
Convert a bpp and RGBA masks to an enumerated pixel format.
int SDL_SetPixelFormatPalette(SDL_PixelFormat *format, SDL_Palette *palette)
Set the palette for a pixel format structure.
SDL_Palette * SDL_AllocPalette(int ncolors)
Create a palette structure with the specified number of color entries.
int SDL_SetPaletteColors(SDL_Palette *palette, const SDL_Color *colors, int firstcolor, int ncolors)
Set a range of colors in a palette.
Uint32 SDL_MapRGB(const SDL_PixelFormat *format, Uint8 r, Uint8 g, Uint8 b)
Maps an RGB triple to an opaque pixel value for a given pixel format.
#define SDL_DEFINE_PIXELFORMAT(type, order, layout, bits, bytes)
const char * SDL_GetPixelFormatName(Uint32 format)
Get the human readable name of a pixel format.
void SDL_CalculateGammaRamp(float gamma, Uint16 *ramp)
Calculate a 256 entry gamma ramp for a gamma value.
void SDL_GetRGB(Uint32 pixel, const SDL_PixelFormat *format, Uint8 *r, Uint8 *g, Uint8 *b)
Get the RGB components from a pixel of the specified format.
GLboolean GLboolean GLboolean GLboolean a
GLboolean GLboolean GLboolean b
SDL_bool SDL_PixelFormatEnumToMasks(Uint32 format, int *bpp, Uint32 *Rmask, Uint32 *Gmask, Uint32 *Bmask, Uint32 *Amask)
Convert one of the enumerated pixel formats to a bpp and RGBA masks.