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Merged r3007:3008 from branches/SDL-1.2: MapRGB/MapRGBA const correctness.

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This commit is contained in:
Ryan C. Gordon 2007-04-04 09:43:53 +00:00
parent 686bddc5dc
commit 3855f51eff
2 changed files with 10 additions and 7 deletions
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11
include/SDL_video.h
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@ -1300,15 +1300,16 @@ extern DECLSPEC void SDLCALL SDL_DestroyRenderer(SDL_WindowID windowID);
/*
* Maps an RGB triple to an opaque pixel value for a given pixel format
*/
extern DECLSPEC Uint32 SDLCALL SDL_MapRGB
(SDL_PixelFormat * format, Uint8 r, Uint8 g, Uint8 b);
extern DECLSPEC Uint32 SDLCALL SDL_MapRGB(const SDL_PixelFormat * const format,
const Uint8 r, const Uint8 g,
const Uint8 b);
/*
* Maps an RGBA quadruple to a pixel value for a given pixel format
*/
extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(SDL_PixelFormat * format,
Uint8 r, Uint8 g, Uint8 b,
Uint8 a);
extern DECLSPEC Uint32 SDLCALL SDL_MapRGBA(const SDL_PixelFormat * const fmt,
const Uint8 r, const Uint8 g,
const Uint8 b, const Uint8 a);
/*
* Maps a pixel value into the RGB components for a given pixel format

6
src/video/SDL_pixels.c
View File

@ -537,7 +537,8 @@ SDL_FindColor(SDL_Palette * pal, Uint8 r, Uint8 g, Uint8 b)
/* Find the opaque pixel value corresponding to an RGB triple */
Uint32
SDL_MapRGB(SDL_PixelFormat * format, Uint8 r, Uint8 g, Uint8 b)
SDL_MapRGB(const SDL_PixelFormat * const format, const Uint8 r, const Uint8 g,
const Uint8 b)
{
if (format->palette == NULL) {
return (r >> format->Rloss) << format->Rshift
@ -550,7 +551,8 @@ SDL_MapRGB(SDL_PixelFormat * format, Uint8 r, Uint8 g, Uint8 b)
/* Find the pixel value corresponding to an RGBA quadruple */
Uint32
SDL_MapRGBA(SDL_PixelFormat * format, Uint8 r, Uint8 g, Uint8 b, Uint8 a)
SDL_MapRGBA(const SDL_PixelFormat * const format, const Uint8 r, const Uint8 g,
const Uint8 b, const Uint8 a)
{
if (format->palette == NULL) {
return (r >> format->Rloss) << format->Rshift