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Improved API consistency for flag data types

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Flag data types are always unsigned and have the valid values following the typedef.
This commit is contained in:
Sam Lantinga
2024-05-07 11:12:53 -07:00
parent 1d2b00efe1
commit aecb62e30d
12 changed files with 154 additions and 168 deletions
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43
include/SDL3/SDL_blendmode.h
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@@ -35,36 +35,31 @@ extern "C" {
#endif
/**
* An enumeration of blend modes used in drawing operations.
* A set of blend modes used in drawing operations.
*
* Note that additional values may be obtained from
* SDL_ComposeCustomBlendMode.
* Note that additional values may be obtained from SDL_ComposeCustomBlendMode.
*
* \since This enum is available since SDL 3.0.0.
* \since This datatype is available since SDL 3.0.0.
*
* \sa SDL_ComposeCustomBlendMode
*/
typedef enum SDL_BlendMode
{
SDL_BLENDMODE_NONE = 0x00000000, /**< no blending
dstRGBA = srcRGBA */
SDL_BLENDMODE_BLEND = 0x00000001, /**< alpha blending
dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
dstA = srcA + (dstA * (1-srcA)) */
SDL_BLENDMODE_ADD = 0x00000002, /**< additive blending
dstRGB = (srcRGB * srcA) + dstRGB
dstA = dstA */
SDL_BLENDMODE_MOD = 0x00000004, /**< color modulate
dstRGB = srcRGB * dstRGB
dstA = dstA */
SDL_BLENDMODE_MUL = 0x00000008, /**< color multiply
dstRGB = (srcRGB * dstRGB) + (dstRGB * (1-srcA))
dstA = dstA */
SDL_BLENDMODE_INVALID = 0x7FFFFFFF
typedef Uint32 SDL_BlendMode;
/* Additional custom blend modes can be returned by SDL_ComposeCustomBlendMode() */
} SDL_BlendMode;
#define SDL_BLENDMODE_NONE 0x00000000u /**< no blending
dstRGBA = srcRGBA */
#define SDL_BLENDMODE_BLEND 0x00000001u /**< alpha blending
dstRGB = (srcRGB * srcA) + (dstRGB * (1-srcA))
dstA = srcA + (dstA * (1-srcA)) */
#define SDL_BLENDMODE_ADD 0x00000002u /**< additive blending
dstRGB = (srcRGB * srcA) + dstRGB
dstA = dstA */
#define SDL_BLENDMODE_MOD 0x00000004u /**< color modulate
dstRGB = srcRGB * dstRGB
dstA = dstA */
#define SDL_BLENDMODE_MUL 0x00000008u /**< color multiply
dstRGB = (srcRGB * dstRGB) + (dstRGB * (1-srcA))
dstA = dstA */
#define SDL_BLENDMODE_INVALID 0x7FFFFFFFu
/**
* The blend operation used when combining source and destination pixel