mirror of https://github.com/libsdl-org/SDL
pixels: Packed-pixel YUV formats can legit report bits-per-pixel.
This makes the existing SDL_SoftStretch code work with them, at least for nearest-neighbor scaling; otherwise, it'll mangle the data trying to scale it as 8bpp data without warning.
This commit is contained in:
parent
8e1758260c
commit
3d2d5d18f3
|
@ -147,8 +147,17 @@ SDL_bool SDL_GetMasksForPixelFormatEnum(Uint32 format, int *bpp, Uint32 *Rmask,
|
||||||
/* Partial support for SDL_Surface with FOURCC */
|
/* Partial support for SDL_Surface with FOURCC */
|
||||||
if (SDL_ISPIXELFORMAT_FOURCC(format)) {
|
if (SDL_ISPIXELFORMAT_FOURCC(format)) {
|
||||||
/* Not a format that uses masks */
|
/* Not a format that uses masks */
|
||||||
*bpp = 0;
|
|
||||||
*Rmask = *Gmask = *Bmask = *Amask = 0;
|
*Rmask = *Gmask = *Bmask = *Amask = 0;
|
||||||
|
// however, some of these are packed formats, and can legit declare bits-per-pixel!
|
||||||
|
switch (format) {
|
||||||
|
case SDL_PIXELFORMAT_YUY2:
|
||||||
|
case SDL_PIXELFORMAT_UYVY:
|
||||||
|
case SDL_PIXELFORMAT_YVYU:
|
||||||
|
*bpp = 32;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
*bpp = 0; // oh well.
|
||||||
|
}
|
||||||
return SDL_TRUE;
|
return SDL_TRUE;
|
||||||
}
|
}
|
||||||
#else
|
#else
|
||||||
|
|
Loading…
Reference in New Issue