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comparison src/video/SDL_renderer_gles.c @ 5143:e743b9c3f6d6

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Making the API simpler, the blend modes are "none, blend, add" and are supported by all renderers.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 31 Jan 2011 23:23:57 -0800
parents da10636e5eca
children 31e7f523ab3d
comparison
equal deleted inserted replaced
5142:57851a238c8f 5143:e743b9c3f6d6
69 int firstcolor, int ncolors); 69 int firstcolor, int ncolors);
70 static int GLES_SetTextureColorMod(SDL_Renderer * renderer, 70 static int GLES_SetTextureColorMod(SDL_Renderer * renderer,
71 SDL_Texture * texture); 71 SDL_Texture * texture);
72 static int GLES_SetTextureAlphaMod(SDL_Renderer * renderer, 72 static int GLES_SetTextureAlphaMod(SDL_Renderer * renderer,
73 SDL_Texture * texture); 73 SDL_Texture * texture);
74 static int GLES_SetTextureBlendMode(SDL_Renderer * renderer,
75 SDL_Texture * texture);
76 static int GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture, 74 static int GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
77 const SDL_Rect * rect, const void *pixels, 75 const SDL_Rect * rect, const void *pixels,
78 int pitch); 76 int pitch);
79 static int GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture, 77 static int GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
80 const SDL_Rect * rect, int markDirty, 78 const SDL_Rect * rect, int markDirty,
106 "opengl_es", 104 "opengl_es",
107 (SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD | 105 (SDL_RENDERER_SINGLEBUFFER | SDL_RENDERER_PRESENTDISCARD |
108 SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED), 106 SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED),
109 (SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR | 107 (SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR |
110 SDL_TEXTUREMODULATE_ALPHA), 108 SDL_TEXTUREMODULATE_ALPHA),
111 (SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK |
112 SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD),
113 { 109 {
114 /* OpenGL ES 1.x supported formats list */ 110 /* OpenGL ES 1.x supported formats list */
115 SDL_PIXELFORMAT_RGBA4444, 111 SDL_PIXELFORMAT_RGBA4444,
116 SDL_PIXELFORMAT_RGBA5551, 112 SDL_PIXELFORMAT_RGBA5551,
117 SDL_PIXELFORMAT_RGB565, 113 SDL_PIXELFORMAT_RGB565,
235 renderer->QueryTexturePixels = GLES_QueryTexturePixels; 231 renderer->QueryTexturePixels = GLES_QueryTexturePixels;
236 renderer->SetTexturePalette = GLES_SetTexturePalette; 232 renderer->SetTexturePalette = GLES_SetTexturePalette;
237 renderer->GetTexturePalette = GLES_GetTexturePalette; 233 renderer->GetTexturePalette = GLES_GetTexturePalette;
238 renderer->SetTextureColorMod = GLES_SetTextureColorMod; 234 renderer->SetTextureColorMod = GLES_SetTextureColorMod;
239 renderer->SetTextureAlphaMod = GLES_SetTextureAlphaMod; 235 renderer->SetTextureAlphaMod = GLES_SetTextureAlphaMod;
240 renderer->SetTextureBlendMode = GLES_SetTextureBlendMode;
241 renderer->UpdateTexture = GLES_UpdateTexture; 236 renderer->UpdateTexture = GLES_UpdateTexture;
242 renderer->LockTexture = GLES_LockTexture; 237 renderer->LockTexture = GLES_LockTexture;
243 renderer->UnlockTexture = GLES_UnlockTexture; 238 renderer->UnlockTexture = GLES_UnlockTexture;
244 renderer->DirtyTexture = GLES_DirtyTexture; 239 renderer->DirtyTexture = GLES_DirtyTexture;
245 renderer->RenderDrawPoints = GLES_RenderDrawPoints; 240 renderer->RenderDrawPoints = GLES_RenderDrawPoints;
512 { 507 {
513 return 0; 508 return 0;
514 } 509 }
515 510
516 static int 511 static int
517 GLES_SetTextureBlendMode(SDL_Renderer * renderer, SDL_Texture * texture)
518 {
519 switch (texture->blendMode) {
520 case SDL_BLENDMODE_NONE:
521 case SDL_BLENDMODE_MASK:
522 case SDL_BLENDMODE_BLEND:
523 case SDL_BLENDMODE_ADD:
524 case SDL_BLENDMODE_MOD:
525 return 0;
526 default:
527 SDL_Unsupported();
528 texture->blendMode = SDL_BLENDMODE_NONE;
529 return -1;
530 }
531 }
532
533 static int
534 GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture, 512 GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
535 const SDL_Rect * rect, const void *pixels, int pitch) 513 const SDL_Rect * rect, const void *pixels, int pitch)
536 { 514 {
537 GLES_RenderData *renderdata = (GLES_RenderData *) renderer->driverdata; 515 GLES_RenderData *renderdata = (GLES_RenderData *) renderer->driverdata;
538 GLES_TextureData *data = (GLES_TextureData *) texture->driverdata; 516 GLES_TextureData *data = (GLES_TextureData *) texture->driverdata;
610 SDL_AddDirtyRect(&data->dirty, &rects[i]); 588 SDL_AddDirtyRect(&data->dirty, &rects[i]);
611 } 589 }
612 } 590 }
613 591
614 static void 592 static void
615 GLES_SetBlendMode(GLES_RenderData * data, int blendMode, int isprimitive) 593 GLES_SetBlendMode(GLES_RenderData * data, int blendMode)
616 { 594 {
617 if (blendMode != data->blendMode) { 595 if (blendMode != data->blendMode) {
618 switch (blendMode) { 596 switch (blendMode) {
619 case SDL_BLENDMODE_NONE: 597 case SDL_BLENDMODE_NONE:
620 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE); 598 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
621 data->glDisable(GL_BLEND); 599 data->glDisable(GL_BLEND);
622 break; 600 break;
623 case SDL_BLENDMODE_MASK:
624 if (isprimitive) {
625 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
626 data->glDisable(GL_BLEND);
627 /* The same as SDL_BLENDMODE_NONE */
628 blendMode = SDL_BLENDMODE_NONE;
629 break;
630 }
631 /* fall through */
632 case SDL_BLENDMODE_BLEND: 601 case SDL_BLENDMODE_BLEND:
633 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 602 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
634 data->glEnable(GL_BLEND); 603 data->glEnable(GL_BLEND);
635 data->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA); 604 data->glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
636 break; 605 break;
637 case SDL_BLENDMODE_ADD: 606 case SDL_BLENDMODE_ADD:
638 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); 607 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
639 data->glEnable(GL_BLEND); 608 data->glEnable(GL_BLEND);
640 data->glBlendFunc(GL_SRC_ALPHA, GL_ONE); 609 data->glBlendFunc(GL_SRC_ALPHA, GL_ONE);
641 break; 610 break;
642 case SDL_BLENDMODE_MOD:
643 data->glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
644 data->glEnable(GL_BLEND);
645 data->glBlendFunc(GL_ZERO, GL_SRC_COLOR);
646 break;
647 } 611 }
648 data->blendMode = blendMode; 612 data->blendMode = blendMode;
649 } 613 }
650 } 614 }
651 615
655 { 619 {
656 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata; 620 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
657 int i; 621 int i;
658 GLshort *vertices; 622 GLshort *vertices;
659 623
660 GLES_SetBlendMode(data, renderer->blendMode, 1); 624 GLES_SetBlendMode(data, renderer->blendMode);
661 625
662 data->glColor4f((GLfloat) renderer->r * inv255f, 626 data->glColor4f((GLfloat) renderer->r * inv255f,
663 (GLfloat) renderer->g * inv255f, 627 (GLfloat) renderer->g * inv255f,
664 (GLfloat) renderer->b * inv255f, 628 (GLfloat) renderer->b * inv255f,
665 (GLfloat) renderer->a * inv255f); 629 (GLfloat) renderer->a * inv255f);
682 { 646 {
683 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata; 647 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
684 int i; 648 int i;
685 GLshort *vertices; 649 GLshort *vertices;
686 650
687 GLES_SetBlendMode(data, renderer->blendMode, 1); 651 GLES_SetBlendMode(data, renderer->blendMode);
688 652
689 data->glColor4f((GLfloat) renderer->r * inv255f, 653 data->glColor4f((GLfloat) renderer->r * inv255f,
690 (GLfloat) renderer->g * inv255f, 654 (GLfloat) renderer->g * inv255f,
691 (GLfloat) renderer->b * inv255f, 655 (GLfloat) renderer->b * inv255f,
692 (GLfloat) renderer->a * inv255f); 656 (GLfloat) renderer->a * inv255f);
715 int count) 679 int count)
716 { 680 {
717 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata; 681 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
718 int i; 682 int i;
719 683
720 GLES_SetBlendMode(data, renderer->blendMode, 1); 684 GLES_SetBlendMode(data, renderer->blendMode);
721 685
722 data->glColor4f((GLfloat) renderer->r * inv255f, 686 data->glColor4f((GLfloat) renderer->r * inv255f,
723 (GLfloat) renderer->g * inv255f, 687 (GLfloat) renderer->g * inv255f,
724 (GLfloat) renderer->b * inv255f, 688 (GLfloat) renderer->b * inv255f,
725 (GLfloat) renderer->a * inv255f); 689 (GLfloat) renderer->a * inv255f);
752 int count) 716 int count)
753 { 717 {
754 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata; 718 GLES_RenderData *data = (GLES_RenderData *) renderer->driverdata;
755 int i; 719 int i;
756 720
757 GLES_SetBlendMode(data, renderer->blendMode, 1); 721 GLES_SetBlendMode(data, renderer->blendMode);
758 722
759 data->glColor4f((GLfloat) renderer->r * inv255f, 723 data->glColor4f((GLfloat) renderer->r * inv255f,
760 (GLfloat) renderer->g * inv255f, 724 (GLfloat) renderer->g * inv255f,
761 (GLfloat) renderer->b * inv255f, 725 (GLfloat) renderer->b * inv255f,
762 (GLfloat) renderer->a * inv255f); 726 (GLfloat) renderer->a * inv255f);
851 (GLfloat) texture->a * inv255f); 815 (GLfloat) texture->a * inv255f);
852 } else { 816 } else {
853 data->glColor4f(1.0f, 1.0f, 1.0f, 1.0f); 817 data->glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
854 } 818 }
855 819
856 GLES_SetBlendMode(data, texture->blendMode, 0); 820 GLES_SetBlendMode(data, texture->blendMode);
857 821
858 if (data->GL_OES_draw_texture_supported && data->useDrawTexture) { 822 if (data->GL_OES_draw_texture_supported && data->useDrawTexture) {
859 /* this code is a little funny because the viewport is upside down vs SDL's coordinate system */ 823 /* this code is a little funny because the viewport is upside down vs SDL's coordinate system */
860 SDL_Window *window = renderer->window; 824 SDL_Window *window = renderer->window;
861 GLint cropRect[4]; 825 GLint cropRect[4];