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comparison test/testshape.c @ 4802:f14a8c05f5bb

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Minor bugfixes. testshape now draws a shaped window with bizarre, pixellated gashes of transparency across it, and in doing so seems to hog a system resource and slow the rest of the video system down.
author Eli Gottlieb <eligottlieb@gmail.com>
date Sun, 18 Jul 2010 23:05:40 -0400
parents 6d4be626225f
children a4c1df880690
comparison
equal deleted inserted replaced
4801:506a9165491b 4802:f14a8c05f5bb
25 SDL_Surface **pictures = malloc(sizeof(SDL_Surface*)*num_pictures); 25 SDL_Surface **pictures = malloc(sizeof(SDL_Surface*)*num_pictures);
26 int i = 0; 26 int i = 0;
27 for(i=0;i<num_pictures;i++) 27 for(i=0;i<num_pictures;i++)
28 pictures[i] = NULL; 28 pictures[i] = NULL;
29 for(i=0;i<num_pictures;i++) { 29 for(i=0;i<num_pictures;i++) {
30 SDL_Surface *original = SDL_LoadBMP(argv[i+1]); 30 pictures[i] = SDL_LoadBMP(argv[i+1]);
31 if(original == NULL) { 31 if(pictures[i] == NULL) {
32 int j = 0; 32 int j = 0;
33 for(j=0;j<num_pictures;j++) 33 for(j=0;j<num_pictures;j++)
34 if(pictures[j] != NULL) 34 if(pictures[j] != NULL)
35 SDL_FreeSurface(pictures[j]); 35 SDL_FreeSurface(pictures[j]);
36 free(pictures); 36 free(pictures);
37 SDL_VideoQuit(); 37 SDL_VideoQuit();
38 printf("Could not load surface from named bitmap file.\n"); 38 printf("Could not load surface from named bitmap file.\n");
39 exit(-3); 39 exit(-3);
40 } 40 }
41 //THIS CONVERSION ROUTINE IS FRAGILE! It relies in the fact that only certain portions of the format structure must be filled in to use it.
42 SDL_PixelFormat format = {NULL,0,0,0,0,0,0,0,0,0,0,0,0,0,0};
43 int bpp = 0;
44 SDL_PixelFormatEnumToMasks(SDL_PIXELFORMAT_RGBA8888,&bpp,&format.Rmask,&format.Gmask,&format.Bmask,&format.Amask);
45 format.BitsPerPixel = bpp;
46 format.BytesPerPixel = format.BitsPerPixel / 8 + (format.BitsPerPixel % 8 > 0 ? 1 : 0);
47 pictures[i] = SDL_ConvertSurface(original,&format,0);
48 //We have no more need of the original now that we have our desired format.
49 SDL_FreeSurface(original);
50 if(pictures[i] == NULL) {
51 int j = 0;
52 for(j=0;j<num_pictures;j++)
53 if(pictures[j] != NULL)
54 SDL_FreeSurface(pictures[j]);
55 free(pictures);
56 SDL_VideoQuit();
57 printf("Could not convert bitmap surface to desired format.\n");
58 exit(-3);
59 }
60
61 if(SDL_MUSTLOCK(pictures[i]))
62 SDL_LockSurface(pictures[i]);
63
64 void* pixels = pictures[i]->pixels;
65 unsigned int pitch = pictures[i]->pitch;
66 int y =0,x = 0;
67 for(y=0;y<pictures[i]->h;y++)
68 for(x=0;x<pictures[i]->w;x++) {
69 Uint32* pixel = pixels + y * pitch + x * pictures[i]->format->BytesPerPixel;
70 Uint8 r = 0,g = 0,b = 0;
71 SDL_GetRGB(*pixel,pictures[i]->format,&r,&g,&b);
72 //if(r == g == b == 0xff)
73 // *pixel = SDL_MapRGBA(pictures[i]->format,r,g,b,0);
74 }
75
76 if(SDL_MUSTLOCK(pictures[i]))
77 SDL_UnlockSurface(pictures[i]);
78 } 41 }
79 42
80 SDL_Window *window = SDL_CreateShapedWindow("SDL_Shape test",SHAPED_WINDOW_X,SHAPED_WINDOW_Y,SHAPED_WINDOW_DIMENSION,SHAPED_WINDOW_DIMENSION,SDL_WINDOW_RESIZABLE | SDL_WINDOW_SHOWN); 43 SDL_Window *window = SDL_CreateShapedWindow("SDL_Shape test",SHAPED_WINDOW_X,SHAPED_WINDOW_Y,SHAPED_WINDOW_DIMENSION,SHAPED_WINDOW_DIMENSION,SDL_WINDOW_RESIZABLE | SDL_WINDOW_SHOWN);
81 if(window == NULL) { 44 if(window == NULL) {
82 for(i=0;i<num_pictures;i++) 45 for(i=0;i<num_pictures;i++)
121 SDL_Event event; 84 SDL_Event event;
122 int event_pending = 0,should_exit = 0; 85 int event_pending = 0,should_exit = 0;
123 event_pending = SDL_PollEvent(&event); 86 event_pending = SDL_PollEvent(&event);
124 unsigned int current_picture = 0; 87 unsigned int current_picture = 0;
125 SDL_WindowShapeMode mode = {ShapeModeDefault,1}; 88 SDL_WindowShapeMode mode = {ShapeModeDefault,1};
126 SDL_SetWindowShape(window,pictures[current_picture],&mode);
127 int mouse_down = 0; 89 int mouse_down = 0;
128 Uint32 format,access; 90 Uint32 format = 0,access = 0;
129 SDL_Rect texture_dimensions = {0,0,0,0}; 91 SDL_Rect texture_dimensions = {0,0,0,0};
130 SDL_QueryTexture(textures[current_picture],&format,&access,&texture_dimensions.w,&texture_dimensions.h); 92 SDL_QueryTexture(textures[current_picture],&format,&access,&texture_dimensions.w,&texture_dimensions.h);
131 SDL_SetWindowSize(window,texture_dimensions.w,texture_dimensions.h); 93 SDL_SetWindowSize(window,texture_dimensions.w,texture_dimensions.h);
94 SDL_SetWindowShape(window,pictures[current_picture],&mode);
132 while(should_exit == 0) { 95 while(should_exit == 0) {
133 event_pending = SDL_PollEvent(&event); 96 event_pending = SDL_PollEvent(&event);
134 if(event_pending == 1) { 97 if(event_pending == 1) {
135 if(event.type == SDL_MOUSEBUTTONDOWN) 98 if(event.type == SDL_MOUSEBUTTONDOWN)
136 mouse_down = 1; 99 mouse_down = 1;