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comparison src/video/SDL_renderer_sw.c @ 5151:5429daf5e3f9

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The DrawRect API is implemented using lines
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Feb 2011 20:50:04 -0800
parents ad50b3db78bd
children be02be2ea897
comparison
equal deleted inserted replaced
5150:ad50b3db78bd 5151:5429daf5e3f9
60 static void SW_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture); 60 static void SW_UnlockTexture(SDL_Renderer * renderer, SDL_Texture * texture);
61 static int SW_RenderDrawPoints(SDL_Renderer * renderer, 61 static int SW_RenderDrawPoints(SDL_Renderer * renderer,
62 const SDL_Point * points, int count); 62 const SDL_Point * points, int count);
63 static int SW_RenderDrawLines(SDL_Renderer * renderer, 63 static int SW_RenderDrawLines(SDL_Renderer * renderer,
64 const SDL_Point * points, int count); 64 const SDL_Point * points, int count);
65 static int SW_RenderDrawRects(SDL_Renderer * renderer,
66 const SDL_Rect ** rects, int count);
67 static int SW_RenderFillRects(SDL_Renderer * renderer, 65 static int SW_RenderFillRects(SDL_Renderer * renderer,
68 const SDL_Rect ** rects, int count); 66 const SDL_Rect ** rects, int count);
69 static int SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture, 67 static int SW_RenderCopy(SDL_Renderer * renderer, SDL_Texture * texture,
70 const SDL_Rect * srcrect, const SDL_Rect * dstrect); 68 const SDL_Rect * srcrect, const SDL_Rect * dstrect);
71 static int SW_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect, 69 static int SW_RenderReadPixels(SDL_Renderer * renderer, const SDL_Rect * rect,
214 } 212 }
215 renderer->WindowEvent = SW_WindowEvent; 213 renderer->WindowEvent = SW_WindowEvent;
216 214
217 renderer->RenderDrawPoints = SW_RenderDrawPoints; 215 renderer->RenderDrawPoints = SW_RenderDrawPoints;
218 renderer->RenderDrawLines = SW_RenderDrawLines; 216 renderer->RenderDrawLines = SW_RenderDrawLines;
219 renderer->RenderDrawRects = SW_RenderDrawRects;
220 renderer->RenderFillRects = SW_RenderFillRects; 217 renderer->RenderFillRects = SW_RenderFillRects;
221 renderer->RenderCopy = SW_RenderCopy; 218 renderer->RenderCopy = SW_RenderCopy;
222 renderer->RenderReadPixels = SW_RenderReadPixels; 219 renderer->RenderReadPixels = SW_RenderReadPixels;
223 renderer->RenderWritePixels = SW_RenderWritePixels; 220 renderer->RenderWritePixels = SW_RenderWritePixels;
224 renderer->RenderPresent = SW_RenderPresent; 221 renderer->RenderPresent = SW_RenderPresent;
607 604
608 return status; 605 return status;
609 } 606 }
610 607
611 static int 608 static int
612 SW_RenderDrawRects(SDL_Renderer * renderer, const SDL_Rect ** rects,
613 int count)
614 {
615 SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
616 SDL_Texture *texture = SW_ActivateRenderer(renderer);
617 SDL_Rect clip, rect;
618 Uint32 color = 0;
619 int i;
620 int status = 0;
621
622 if (!texture) {
623 return -1;
624 }
625
626 clip.x = 0;
627 clip.y = 0;
628 clip.w = texture->w;
629 clip.h = texture->h;
630
631 if (renderer->blendMode == SDL_BLENDMODE_NONE) {
632 color = SDL_MapRGBA(data->surface.format,
633 renderer->r, renderer->g, renderer->b,
634 renderer->a);
635 }
636
637 for (i = 0; i < count; ++i) {
638 /* FIXME: We don't want to draw clipped edges */
639 if (!SDL_IntersectRect(rects[i], &clip, &rect)) {
640 /* Nothing to draw */
641 continue;
642 }
643
644 if (data->renderer->LockTexture(data->renderer, texture, &rect, 1,
645 &data->surface.pixels,
646 &data->surface.pitch) < 0) {
647 return -1;
648 }
649
650 data->surface.clip_rect.w = data->surface.w = rect.w;
651 data->surface.clip_rect.h = data->surface.h = rect.h;
652
653 if (renderer->blendMode == SDL_BLENDMODE_NONE) {
654 status = SDL_DrawRect(&data->surface, NULL, color);
655 } else {
656 status = SDL_BlendRect(&data->surface, NULL,
657 renderer->blendMode,
658 renderer->r, renderer->g, renderer->b,
659 renderer->a);
660 }
661
662 data->renderer->UnlockTexture(data->renderer, texture);
663 }
664 return status;
665 }
666
667 static int
668 SW_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects, 609 SW_RenderFillRects(SDL_Renderer * renderer, const SDL_Rect ** rects,
669 int count) 610 int count)
670 { 611 {
671 SW_RenderData *data = (SW_RenderData *) renderer->driverdata; 612 SW_RenderData *data = (SW_RenderData *) renderer->driverdata;
672 SDL_Texture *texture = SW_ActivateRenderer(renderer); 613 SDL_Texture *texture = SW_ActivateRenderer(renderer);