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comparison src/video/SDL_renderer_gles.c @ 5141:da10636e5eca

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Making the API simpler, scaling is always defined as linear interpolation and should be supported as much as possible on all renderers.
author Sam Lantinga <slouken@libsdl.org>
date Mon, 31 Jan 2011 22:44:43 -0800
parents b5b42be9333c
children e743b9c3f6d6
comparison
equal deleted inserted replaced
5140:e594f07297a9 5141:da10636e5eca
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, 74 static int GLES_SetTextureBlendMode(SDL_Renderer * renderer,
75 SDL_Texture * texture);
76 static int GLES_SetTextureScaleMode(SDL_Renderer * renderer,
77 SDL_Texture * texture); 75 SDL_Texture * texture);
78 static int GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture, 76 static int GLES_UpdateTexture(SDL_Renderer * renderer, SDL_Texture * texture,
79 const SDL_Rect * rect, const void *pixels, 77 const SDL_Rect * rect, const void *pixels,
80 int pitch); 78 int pitch);
81 static int GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture, 79 static int GLES_LockTexture(SDL_Renderer * renderer, SDL_Texture * texture,
110 SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED), 108 SDL_RENDERER_PRESENTVSYNC | SDL_RENDERER_ACCELERATED),
111 (SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR | 109 (SDL_TEXTUREMODULATE_NONE | SDL_TEXTUREMODULATE_COLOR |
112 SDL_TEXTUREMODULATE_ALPHA), 110 SDL_TEXTUREMODULATE_ALPHA),
113 (SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK | 111 (SDL_BLENDMODE_NONE | SDL_BLENDMODE_MASK |
114 SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD), 112 SDL_BLENDMODE_BLEND | SDL_BLENDMODE_ADD | SDL_BLENDMODE_MOD),
115 (SDL_SCALEMODE_NONE | SDL_SCALEMODE_FAST | SDL_SCALEMODE_SLOW), 6,
116 { 113 {
117 /* OpenGL ES 1.x supported formats list */ 114 /* OpenGL ES 1.x supported formats list */
118 SDL_PIXELFORMAT_RGBA4444, 115 SDL_PIXELFORMAT_RGBA4444,
119 SDL_PIXELFORMAT_RGBA5551, 116 SDL_PIXELFORMAT_RGBA5551,
120 SDL_PIXELFORMAT_RGB565, 117 SDL_PIXELFORMAT_RGB565,
239 renderer->SetTexturePalette = GLES_SetTexturePalette; 236 renderer->SetTexturePalette = GLES_SetTexturePalette;
240 renderer->GetTexturePalette = GLES_GetTexturePalette; 237 renderer->GetTexturePalette = GLES_GetTexturePalette;
241 renderer->SetTextureColorMod = GLES_SetTextureColorMod; 238 renderer->SetTextureColorMod = GLES_SetTextureColorMod;
242 renderer->SetTextureAlphaMod = GLES_SetTextureAlphaMod; 239 renderer->SetTextureAlphaMod = GLES_SetTextureAlphaMod;
243 renderer->SetTextureBlendMode = GLES_SetTextureBlendMode; 240 renderer->SetTextureBlendMode = GLES_SetTextureBlendMode;
244 renderer->SetTextureScaleMode = GLES_SetTextureScaleMode;
245 renderer->UpdateTexture = GLES_UpdateTexture; 241 renderer->UpdateTexture = GLES_UpdateTexture;
246 renderer->LockTexture = GLES_LockTexture; 242 renderer->LockTexture = GLES_LockTexture;
247 renderer->UnlockTexture = GLES_UnlockTexture; 243 renderer->UnlockTexture = GLES_UnlockTexture;
248 renderer->DirtyTexture = GLES_DirtyTexture; 244 renderer->DirtyTexture = GLES_DirtyTexture;
249 renderer->RenderDrawPoints = GLES_RenderDrawPoints; 245 renderer->RenderDrawPoints = GLES_RenderDrawPoints;
447 443
448 data->format = format; 444 data->format = format;
449 data->formattype = type; 445 data->formattype = type;
450 renderdata->glBindTexture(data->type, data->texture); 446 renderdata->glBindTexture(data->type, data->texture);
451 renderdata->glTexParameteri(data->type, GL_TEXTURE_MIN_FILTER, 447 renderdata->glTexParameteri(data->type, GL_TEXTURE_MIN_FILTER,
452 GL_NEAREST); 448 GL_LINEAR);
453 renderdata->glTexParameteri(data->type, GL_TEXTURE_MAG_FILTER, 449 renderdata->glTexParameteri(data->type, GL_TEXTURE_MAG_FILTER,
454 GL_NEAREST); 450 GL_LINEAR);
455 renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_S, 451 renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_S,
456 GL_CLAMP_TO_EDGE); 452 GL_CLAMP_TO_EDGE);
457 renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_T, 453 renderdata->glTexParameteri(data->type, GL_TEXTURE_WRAP_T,
458 GL_CLAMP_TO_EDGE); 454 GL_CLAMP_TO_EDGE);
459 455
528 case SDL_BLENDMODE_MOD: 524 case SDL_BLENDMODE_MOD:
529 return 0; 525 return 0;
530 default: 526 default:
531 SDL_Unsupported(); 527 SDL_Unsupported();
532 texture->blendMode = SDL_BLENDMODE_NONE; 528 texture->blendMode = SDL_BLENDMODE_NONE;
533 return -1;
534 }
535 }
536
537 static int
538 GLES_SetTextureScaleMode(SDL_Renderer * renderer, SDL_Texture * texture)
539 {
540 switch (texture->scaleMode) {
541 case SDL_SCALEMODE_NONE:
542 case SDL_SCALEMODE_FAST:
543 case SDL_SCALEMODE_SLOW:
544 return 0;
545 case SDL_SCALEMODE_BEST:
546 SDL_Unsupported();
547 texture->scaleMode = SDL_SCALEMODE_SLOW;
548 return -1;
549 default:
550 SDL_Unsupported();
551 texture->scaleMode = SDL_SCALEMODE_NONE;
552 return -1; 529 return -1;
553 } 530 }
554 } 531 }
555 532
556 static int 533 static int
876 data->glColor4f(1.0f, 1.0f, 1.0f, 1.0f); 853 data->glColor4f(1.0f, 1.0f, 1.0f, 1.0f);
877 } 854 }
878 855
879 GLES_SetBlendMode(data, texture->blendMode, 0); 856 GLES_SetBlendMode(data, texture->blendMode, 0);
880 857
881 switch (texture->scaleMode) {
882 case SDL_SCALEMODE_NONE:
883 case SDL_SCALEMODE_FAST:
884 data->glTexParameteri(texturedata->type, GL_TEXTURE_MIN_FILTER,
885 GL_NEAREST);
886 data->glTexParameteri(texturedata->type, GL_TEXTURE_MAG_FILTER,
887 GL_NEAREST);
888 break;
889 case SDL_SCALEMODE_SLOW:
890 case SDL_SCALEMODE_BEST:
891 data->glTexParameteri(texturedata->type, GL_TEXTURE_MIN_FILTER,
892 GL_LINEAR);
893 data->glTexParameteri(texturedata->type, GL_TEXTURE_MAG_FILTER,
894 GL_LINEAR);
895 break;
896 }
897
898 if (data->GL_OES_draw_texture_supported && data->useDrawTexture) { 858 if (data->GL_OES_draw_texture_supported && data->useDrawTexture) {
899 /* this code is a little funny because the viewport is upside down vs SDL's coordinate system */ 859 /* this code is a little funny because the viewport is upside down vs SDL's coordinate system */
900 SDL_Window *window = renderer->window; 860 SDL_Window *window = renderer->window;
901 GLint cropRect[4]; 861 GLint cropRect[4];
902 cropRect[0] = srcrect->x; 862 cropRect[0] = srcrect->x;