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comparison src/video/directfb/SDL_DirectFB_render.c @ 2930:8acbb14124c5

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Date: Mon, 29 Dec 2008 23:29:52 +0100 From: Couriersud I have attached the latest DirectFB changes.
author Sam Lantinga <slouken@libsdl.org>
date Tue, 30 Dec 2008 17:02:53 +0000
parents 2133d2d300fd
children 8f4ed5ec2b06
comparison
equal deleted inserted replaced
2929:81fc47035302 2930:8acbb14124c5
203 DSBF_INVSRCALPHA); 203 DSBF_INVSRCALPHA);
204 break; 204 break;
205 case SDL_BLENDMODE_ADD: 205 case SDL_BLENDMODE_ADD:
206 data->blitFlags = DSBLIT_BLEND_ALPHACHANNEL; 206 data->blitFlags = DSBLIT_BLEND_ALPHACHANNEL;
207 data->drawFlags = DSDRAW_BLEND; 207 data->drawFlags = DSDRAW_BLEND;
208 //FIXME: SRCALPHA kills performance on radeon ... 208 // FIXME: SRCALPHA kills performance on radeon ...
209 //Eventually use a premultiplied texture 209 // It will be cheaper to copy the surface to
210 if (0 && TextureHasAlpha(source)) 210 // a temporay surface and premultiply
211 if (source && TextureHasAlpha(source))
211 data->surface->SetSrcBlendFunction(data->surface, 212 data->surface->SetSrcBlendFunction(data->surface,
212 DSBF_SRCALPHA); 213 DSBF_SRCALPHA);
213 else 214 else
214 data->surface->SetSrcBlendFunction(data->surface, DSBF_ONE); 215 data->surface->SetSrcBlendFunction(data->surface, DSBF_ONE);
215 data->surface->SetDstBlendFunction(data->surface, DSBF_ONE); 216 data->surface->SetDstBlendFunction(data->surface, DSBF_ONE);
711 Uint8 *dpixels; 712 Uint8 *dpixels;
712 int dpitch; 713 int dpitch;
713 Uint8 *src, *dst; 714 Uint8 *src, *dst;
714 int row; 715 int row;
715 size_t length; 716 size_t length;
717 int bpp = DFB_BYTES_PER_PIXEL(SDLToDFBPixelFormat(texture->format));
718 // FIXME: SDL_BYTESPERPIXEL(texture->format) broken for yuv yv12 3 planes
716 719
717 SDL_DFB_CHECKERR(data->surface->Lock(data->surface, 720 SDL_DFB_CHECKERR(data->surface->Lock(data->surface,
718 DSLF_WRITE | DSLF_READ, 721 DSLF_WRITE | DSLF_READ,
719 ((void **) &dpixels), &dpitch)); 722 ((void **) &dpixels), &dpitch));
720 src = (Uint8 *) pixels; 723 src = (Uint8 *) pixels;
721 dst = 724 dst = (Uint8 *) dpixels + rect->y * dpitch + rect->x * bpp;
722 (Uint8 *) dpixels + rect->y * dpitch + 725 length = rect->w * bpp;
723 rect->x * SDL_BYTESPERPIXEL(texture->format);
724 length = rect->w * SDL_BYTESPERPIXEL(texture->format);
725 for (row = 0; row < rect->h; ++row) { 726 for (row = 0; row < rect->h; ++row) {
726 SDL_memcpy(dst, src, length); 727 SDL_memcpy(dst, src, length);
727 src += pitch; 728 src += pitch;
728 dst += dpitch; 729 dst += dpitch;
729 } 730 }
834 { 835 {
835 DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata; 836 DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
836 DFBResult ret; 837 DFBResult ret;
837 838
838 PrepareDraw(renderer); 839 PrepareDraw(renderer);
839 SDL_DFB_CHECKERR(data->surface->DrawPoint(data->surface, x, y)); 840 SDL_DFB_CHECKERR(data->surface->DrawLine(data->surface, x, y, x, y));
840 return 0; 841 return 0;
841 error: 842 error:
842 return -1; 843 return -1;
843 } 844 }
844 845
847 { 848 {
848 DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata; 849 DirectFB_RenderData *data = (DirectFB_RenderData *) renderer->driverdata;
849 DFBResult ret; 850 DFBResult ret;
850 851
851 PrepareDraw(renderer); 852 PrepareDraw(renderer);
853 /* Use antialiasing when available */
854 #if (DIRECTFB_MAJOR_VERSION == 1) && (DIRECTFB_MINOR_VERSION >= 2)
855 SDL_DFB_CHECKERR(data->surface->SetRenderOptions(data->surface,
856 DSRO_ANTIALIAS));
857 #endif
852 SDL_DFB_CHECKERR(data->surface->DrawLine(data->surface, x1, y1, x2, y2)); 858 SDL_DFB_CHECKERR(data->surface->DrawLine(data->surface, x1, y1, x2, y2));
853 return 0; 859 return 0;
854 error: 860 error:
855 return -1; 861 return -1;
856 } 862 }