The YV12 image isn't w*h*2, it's actually w*h + w*h/4 + w*h/4

libsdl-org · Feb 12, 2011 · 7d879f7 · 7d879f7
1 parent 6154479
commit 7d879f7
Showing 1 changed file with 2 additions and 1 deletion.
diff --git a/src/render/SDL_yuv_sw.c b/src/render/SDL_yuv_sw.c
@@ -1127,7 +1127,8 @@ SDL_SW_UpdateYUVTexture(SDL_SW_YUVTexture * swdata, const SDL_Rect * rect,
                 ("YV12 and IYUV textures only support full surface updates");
             return -1;
         }
-        SDL_memcpy(swdata->pixels, pixels, swdata->h * swdata->w * 2);
+        SDL_memcpy(swdata->pixels, pixels,
+                   (swdata->h * swdata->w) + (swdata->h * swdata->w) / 2);
         break;
     case SDL_PIXELFORMAT_YUY2:
     case SDL_PIXELFORMAT_UYVY: