Mercurial > sdl-ios-xcode
diff src/SDL_compat.c @ 2781:5651642f4a78
Added software fallback for YUV overlay code when YUV textures aren't available.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 24 Nov 2008 23:25:36 +0000 |
| parents | f55c87ae336b |
| children | 6bacfecbf27e |
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--- a/src/SDL_compat.c Mon Nov 24 21:43:02 2008 +0000 +++ b/src/SDL_compat.c Mon Nov 24 23:25:36 2008 +0000 @@ -28,6 +28,7 @@ #include "video/SDL_sysvideo.h" #include "video/SDL_pixels_c.h" +#include "video/SDL_yuv_sw_c.h" static SDL_WindowID SDL_VideoWindow = 0; static SDL_RendererInfo SDL_VideoRendererInfo; @@ -1349,6 +1350,8 @@ Uint16 pitches[3]; Uint8 *planes[3]; + SDL_SW_YUVTexture *sw; + SDL_TextureID textureID; }; @@ -1431,7 +1434,20 @@ overlay->hwdata->textureID = SDL_CreateTexture(texture_format, SDL_TEXTUREACCESS_STREAMING, w, h); - if (!overlay->hwdata->textureID) { + if (overlay->hwdata->textureID) { + overlay->hwdata->sw = NULL; + } else { + overlay->hwdata->sw = SDL_SW_CreateYUVTexture(texture_format, w, h); + if (!overlay->hwdata->sw) { + SDL_FreeYUVOverlay(overlay); + return NULL; + } + + /* Create a supported RGB format texture for display */ + overlay->hwdata->textureID = + SDL_CreateTexture(SDL_PIXELFORMAT_RGB888, SDL_TEXTUREACCESS_STREAMING, w, h); + } + if (!overlay->hwdata->textureID) { SDL_FreeYUVOverlay(overlay); return NULL; } @@ -1449,10 +1465,16 @@ SDL_SetError("Passed a NULL overlay"); return -1; } - if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch) - < 0) { - return -1; - } + if (overlay->hwdata->sw) { + if (SDL_SW_QueryYUVTexturePixels(overlay->hwdata->sw, &pixels, &pitch) < 0) { + return -1; + } + } else { + if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch) + < 0) { + return -1; + } + } overlay->pixels[0] = (Uint8 *) pixels; overlay->pitches[0] = pitch; switch (overlay->format) { @@ -1479,7 +1501,22 @@ if (!overlay) { return; } - SDL_UnlockTexture(overlay->hwdata->textureID); + if (overlay->hwdata->sw) { + void *pixels; + int pitch; + if (SDL_LockTexture(overlay->hwdata->textureID, NULL, 1, &pixels, &pitch) == 0) { + SDL_Rect srcrect; + + srcrect.x = 0; + srcrect.y = 0; + srcrect.w = overlay->w; + srcrect.h = overlay->h; + SDL_SW_CopyYUVToRGB(overlay->hwdata->sw, &srcrect, SDL_PIXELFORMAT_RGB888, overlay->w, overlay->h, pixels, pitch); + SDL_UnlockTexture(overlay->hwdata->textureID); + } + } else { + SDL_UnlockTexture(overlay->hwdata->textureID); + } } int