Rev 8200 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 8202 | maxcodehac | 1 | /* |
| 6382 | ashmew2 | 2 | |
| 8202 | maxcodehac | 3 | Makefile in this folder |
| 4 | -- maxcodehack |
||
| 5 | */ |
||
| 6382 | ashmew2 | 6 | |
| 8202 | maxcodehac | 7 | /* Simple program: Test bitmap blits */ |
| 6382 | ashmew2 | 8 | |
| 8202 | maxcodehac | 9 | #include |
| 10 | #include |
||
| 11 | #include |
||
| 6382 | ashmew2 | 12 | |
| 8202 | maxcodehac | 13 | // We can use Newlib functions with Menuetlibc library SDL! |
| 14 | #include |
||
| 6382 | ashmew2 | 15 | |
| 8202 | maxcodehac | 16 | #include "SDL.h" |
| 17 | #include "picture.xbm" |
||
| 8200 | maxcodehac | 18 | |
| 8202 | maxcodehac | 19 | SDL_Surface *LoadXBM(SDL_Surface *screen, int w, int h, Uint8 *bits) |
| 20 | { |
||
| 21 | SDL_Surface *bitmap; |
||
| 22 | Uint8 *line; |
||
| 6382 | ashmew2 | 23 | |
| 8202 | maxcodehac | 24 | /* Allocate the bitmap */ |
| 25 | bitmap = SDL_CreateRGBSurface(SDL_SWSURFACE, w, h, 1, 0, 0, 0, 0); |
||
| 26 | if ( bitmap == NULL ) { |
||
| 27 | fprintf(stderr, "Couldn't allocate bitmap: %s\n", |
||
| 28 | SDL_GetError()); |
||
| 29 | return(NULL); |
||
| 30 | } |
||
| 6382 | ashmew2 | 31 | |
| 8202 | maxcodehac | 32 | /* Copy the pixels */ |
| 33 | line = (Uint8 *)bitmap->pixels; |
||
| 34 | w = (w+7)/8; |
||
| 35 | while ( h-- ) { |
||
| 36 | memcpy(line, bits, w); |
||
| 37 | /* X11 Bitmap images have the bits reversed */ |
||
| 38 | { int i, j; Uint8 *buf, byte; |
||
| 39 | for ( buf=line, i=0; i |
||
| 40 | byte = *buf; |
||
| 41 | *buf = 0; |
||
| 42 | for ( j=7; j>=0; --j ) { |
||
| 43 | *buf |= (byte&0x01)< |
||
| 44 | byte >>= 1; |
||
| 45 | } |
||
| 46 | } |
||
| 47 | } |
||
| 48 | line += bitmap->pitch; |
||
| 49 | bits += w; |
||
| 50 | } |
||
| 51 | return(bitmap); |
||
| 52 | } |
||
| 6382 | ashmew2 | 53 | |
| 8202 | maxcodehac | 54 | int main(int argc, char *argv[]) |
| 6382 | ashmew2 | 55 | { |
| 8202 | maxcodehac | 56 | SDL_Surface *screen; |
| 57 | SDL_Surface *bitmap; |
||
| 58 | Uint8 video_bpp; |
||
| 59 | Uint32 videoflags; |
||
| 60 | Uint8 *buffer; |
||
| 61 | int i, done; |
||
| 62 | SDL_Event event; |
||
| 6382 | ashmew2 | 63 | |
| 8202 | maxcodehac | 64 | /* Initialize SDL */ |
| 65 | if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { |
||
| 66 | fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); |
||
| 67 | exit(1); |
||
| 68 | } |
||
| 69 | atexit(SDL_Quit); |
||
| 6382 | ashmew2 | 70 | |
| 8202 | maxcodehac | 71 | video_bpp = 0; |
| 72 | videoflags = SDL_SWSURFACE; |
||
| 73 | /* Set 640x480 video mode */ |
||
| 74 | if ( (screen=SDL_SetVideoMode(640,480,video_bpp,videoflags)) == NULL ) { |
||
| 75 | fprintf(stderr, "Couldn't set 640x480x%d video mode: %s\n", |
||
| 76 | video_bpp, SDL_GetError()); |
||
| 77 | exit(2); |
||
| 78 | } |
||
| 6382 | ashmew2 | 79 | |
| 8202 | maxcodehac | 80 | /* Set the surface pixels and refresh! */ |
| 81 | if ( SDL_LockSurface(screen) < 0 ) { |
||
| 82 | fprintf(stderr, "Couldn't lock the display surface: %s\n", |
||
| 83 | SDL_GetError()); |
||
| 84 | exit(2); |
||
| 85 | } |
||
| 86 | buffer=(Uint8 *)screen->pixels; |
||
| 87 | for ( i=0; i |
||
| 88 | memset(buffer,(i*255)/screen->h, screen->pitch); |
||
| 89 | buffer += screen->pitch; |
||
| 90 | } |
||
| 91 | SDL_UnlockSurface(screen); |
||
| 92 | SDL_UpdateRect(screen, 0, 0, 0, 0); |
||
| 6382 | ashmew2 | 93 | |
| 8202 | maxcodehac | 94 | /* Load the bitmap */ |
| 95 | bitmap = LoadXBM(screen, picture_width, picture_height, |
||
| 96 | (Uint8 *)picture_bits); |
||
| 97 | if ( bitmap == NULL ) { |
||
| 98 | exit(1); |
||
| 99 | } |
||
| 6382 | ashmew2 | 100 | |
| 8202 | maxcodehac | 101 | /* Wait for a keystroke */ |
| 102 | done = 0; |
||
| 103 | while ( !done ) { |
||
| 104 | /* Check for events */ |
||
| 105 | while ( SDL_PollEvent(&event) ) { |
||
| 106 | switch (event.type) { |
||
| 107 | case SDL_MOUSEBUTTONDOWN: { |
||
| 108 | SDL_Rect dst; |
||
| 6382 | ashmew2 | 109 | |
| 8202 | maxcodehac | 110 | dst.x = event.button.x - bitmap->w/2; |
| 111 | dst.y = event.button.y - bitmap->h/2; |
||
| 112 | dst.w = bitmap->w; |
||
| 113 | dst.h = bitmap->h; |
||
| 114 | SDL_BlitSurface(bitmap, NULL, |
||
| 115 | screen, &dst); |
||
| 116 | SDL_UpdateRects(screen,1,&dst); |
||
| 117 | } |
||
| 118 | break; |
||
| 119 | case SDL_KEYDOWN: |
||
| 120 | /* Any key press quits the app... */ |
||
| 121 | done = 1; |
||
| 122 | break; |
||
| 123 | case SDL_QUIT: |
||
| 124 | done = 1; |
||
| 125 | break; |
||
| 126 | default: |
||
| 127 | break; |
||
| 128 | } |
||
| 129 | |||
| 130 | // We can use Newlib functions with Menuetlibc library SDL! |
||
| 131 | // For example: |
||
| 132 | draw_bar(10, 10, 50, 50, 0xFFFFFF); |
||
| 133 | } |
||
| 134 | } |
||
| 135 | SDL_FreeSurface(bitmap); |
||
| 136 | SDL_Quit(); |
||
| 137 | return 0; |
||
| 6382 | ashmew2 | 138 | } |