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Remove SDL_CalculateGammaRamp.

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slime
2022-11-25 16:57:07 -04:00
committed by Sam Lantinga
parent 52f4cc843d
commit ac8fbb7040
6 changed files with 5 additions and 160 deletions
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1
src/dynapi/SDL_dynapi_overrides.h
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@@ -286,7 +286,6 @@
#define SDL_MapRGBA SDL_MapRGBA_REAL
#define SDL_GetRGB SDL_GetRGB_REAL
#define SDL_GetRGBA SDL_GetRGBA_REAL
#define SDL_CalculateGammaRamp SDL_CalculateGammaRamp_REAL
#define SDL_GetPlatform SDL_GetPlatform_REAL
#define SDL_GetPowerInfo SDL_GetPowerInfo_REAL
#define SDL_HasIntersection SDL_HasIntersection_REAL

1
src/dynapi/SDL_dynapi_procs.h
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@@ -313,7 +313,6 @@ SDL_DYNAPI_PROC(Uint32,SDL_MapRGB,(const SDL_PixelFormat *a, Uint8 b, Uint8 c, U
SDL_DYNAPI_PROC(Uint32,SDL_MapRGBA,(const SDL_PixelFormat *a, Uint8 b, Uint8 c, Uint8 d, Uint8 e),(a,b,c,d,e),return)
SDL_DYNAPI_PROC(void,SDL_GetRGB,(Uint32 a, const SDL_PixelFormat *b, Uint8 *c, Uint8 *d, Uint8 *e),(a,b,c,d,e),)
SDL_DYNAPI_PROC(void,SDL_GetRGBA,(Uint32 a, const SDL_PixelFormat *b, Uint8 *c, Uint8 *d, Uint8 *e, Uint8 *f),(a,b,c,d,e,f),)
SDL_DYNAPI_PROC(void,SDL_CalculateGammaRamp,(float a, Uint16 *b),(a,b),)
SDL_DYNAPI_PROC(const char*,SDL_GetPlatform,(void),(),return)
SDL_DYNAPI_PROC(SDL_PowerState,SDL_GetPowerInfo,(int *a, int *b),(a,b),return)
SDL_DYNAPI_PROC(SDL_bool,SDL_HasIntersection,(const SDL_Rect *a, const SDL_Rect *b),(a,b),return)

40
src/video/SDL_pixels.c
View File

@@ -1150,44 +1150,4 @@ SDL_FreeBlitMap(SDL_BlitMap * map)
}
}
void
SDL_CalculateGammaRamp(float gamma, Uint16 * ramp)
{
int i;
/* Input validation */
if (gamma < 0.0f ) {
SDL_InvalidParamError("gamma");
return;
}
if (ramp == NULL) {
SDL_InvalidParamError("ramp");
return;
}
/* 0.0 gamma is all black */
if (gamma == 0.0f) {
SDL_memset(ramp, 0, 256 * sizeof(Uint16));
return;
} else if (gamma == 1.0f) {
/* 1.0 gamma is identity */
for (i = 0; i < 256; ++i) {
ramp[i] = (i << 8) | i;
}
return;
} else {
/* Calculate a real gamma ramp */
int value;
gamma = 1.0f / gamma;
for (i = 0; i < 256; ++i) {
value =
(int) (SDL_pow((double) i / 256.0, gamma) * 65535.0 + 0.5);
if (value > 65535) {
value = 65535;
}
ramp[i] = (Uint16) value;
}
}
}
/* vi: set ts=4 sw=4 expandtab: */