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comparison src/video/SDL_yuv.c @ 81:1a2723474f12

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Added the SDL_VIDEO_YUV_DIRECT hack for better performance when the requested video mode is 16 bpp but the real video mode is 32 bpp.
author Sam Lantinga <slouken@lokigames.com>
date Mon, 25 Jun 2001 22:16:44 +0000
parents 74212992fb08
children e8157fcb3114
comparison
equal deleted inserted replaced
80:8806bc1eb80e 81:1a2723474f12
46 SDL_Overlay *overlay; 46 SDL_Overlay *overlay;
47 47
48 overlay = NULL; 48 overlay = NULL;
49 49
50 /* Display directly on video surface, if possible */ 50 /* Display directly on video surface, if possible */
51 #if 0 51 if ( getenv("SDL_VIDEO_YUV_DIRECT") ) {
52 if ( (display == SDL_PublicSurface) && 52 if ( (display == SDL_PublicSurface) &&
53 ((SDL_VideoSurface->format->BytesPerPixel == 2) || 53 ((SDL_VideoSurface->format->BytesPerPixel == 2) ||
54 (SDL_VideoSurface->format->BytesPerPixel == 4)) ) { 54 (SDL_VideoSurface->format->BytesPerPixel == 4)) ) {
55 display = SDL_VideoSurface; 55 display = SDL_VideoSurface;
56 }
56 } 57 }
57 #endif
58 yuv_hwaccel = getenv("SDL_VIDEO_YUV_HWACCEL"); 58 yuv_hwaccel = getenv("SDL_VIDEO_YUV_HWACCEL");
59 if ( ((display == SDL_VideoSurface) && video->CreateYUVOverlay) && 59 if ( ((display == SDL_VideoSurface) && video->CreateYUVOverlay) &&
60 (!yuv_hwaccel || (atoi(yuv_hwaccel) > 0)) ) { 60 (!yuv_hwaccel || (atoi(yuv_hwaccel) > 0)) ) {
61 overlay = video->CreateYUVOverlay(this, w, h, format, display); 61 overlay = video->CreateYUVOverlay(this, w, h, format, display);
62 } 62 }