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comparison test/testsprite.c @ 1668:4da1ee79c9af SDL-1.3

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more tweaking indent options
author Sam Lantinga <slouken@libsdl.org>
date Mon, 29 May 2006 04:04:35 +0000
parents 6e7ec5cb83c3
children 931d111e737a
comparison
equal deleted inserted replaced
1667:1fddae038bc8 1668:4da1ee79c9af
21 int debug_flip; 21 int debug_flip;
22 Uint16 sprite_w, sprite_h; 22 Uint16 sprite_w, sprite_h;
23 23
24 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ 24 /* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */
25 static void 25 static void
26 quit (int rc) 26 quit(int rc)
27 { 27 {
28 SDL_Quit (); 28 SDL_Quit();
29 exit (rc); 29 exit(rc);
30 } 30 }
31 31
32 int 32 int
33 LoadSprite (char *file) 33 LoadSprite(char *file)
34 { 34 {
35 SDL_Surface *temp; 35 SDL_Surface *temp;
36 36
37 /* Load the sprite image */ 37 /* Load the sprite image */
38 sprite = SDL_LoadBMP (file); 38 sprite = SDL_LoadBMP(file);
39 if (sprite == NULL) { 39 if (sprite == NULL) {
40 fprintf (stderr, "Couldn't load %s: %s", file, SDL_GetError ()); 40 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError());
41 return (-1); 41 return (-1);
42 } 42 }
43 43
44 /* Set transparent pixel as the pixel at (0,0) */ 44 /* Set transparent pixel as the pixel at (0,0) */
45 if (sprite->format->palette) { 45 if (sprite->format->palette) {
46 SDL_SetColorKey (sprite, (SDL_SRCCOLORKEY | SDL_RLEACCEL), 46 SDL_SetColorKey(sprite, (SDL_SRCCOLORKEY | SDL_RLEACCEL),
47 *(Uint8 *) sprite->pixels); 47 *(Uint8 *) sprite->pixels);
48 } 48 }
49 49
50 /* Convert sprite to video format */ 50 /* Convert sprite to video format */
51 temp = SDL_DisplayFormat (sprite); 51 temp = SDL_DisplayFormat(sprite);
52 SDL_FreeSurface (sprite); 52 SDL_FreeSurface(sprite);
53 if (temp == NULL) { 53 if (temp == NULL) {
54 fprintf (stderr, "Couldn't convert background: %s\n", 54 fprintf(stderr, "Couldn't convert background: %s\n", SDL_GetError());
55 SDL_GetError ());
56 return (-1); 55 return (-1);
57 } 56 }
58 sprite = temp; 57 sprite = temp;
59 58
60 /* We're ready to roll. :) */ 59 /* We're ready to roll. :) */
61 return (0); 60 return (0);
62 } 61 }
63 62
64 void 63 void
65 MoveSprites (SDL_Surface * screen, Uint32 background) 64 MoveSprites(SDL_Surface * screen, Uint32 background)
66 { 65 {
67 int i, nupdates; 66 int i, nupdates;
68 SDL_Rect area, *position, *velocity; 67 SDL_Rect area, *position, *velocity;
69 68
70 nupdates = 0; 69 nupdates = 0;
71 /* Erase all the sprites if necessary */ 70 /* Erase all the sprites if necessary */
72 if (sprites_visible) { 71 if (sprites_visible) {
73 SDL_FillRect (screen, NULL, background); 72 SDL_FillRect(screen, NULL, background);
74 } 73 }
75 74
76 /* Move the sprite, bounce at the wall, and draw */ 75 /* Move the sprite, bounce at the wall, and draw */
77 for (i = 0; i < numsprites; ++i) { 76 for (i = 0; i < numsprites; ++i) {
78 position = &positions[i]; 77 position = &positions[i];
88 position->y += velocity->y; 87 position->y += velocity->y;
89 } 88 }
90 89
91 /* Blit the sprite onto the screen */ 90 /* Blit the sprite onto the screen */
92 area = *position; 91 area = *position;
93 SDL_BlitSurface (sprite, NULL, screen, &area); 92 SDL_BlitSurface(sprite, NULL, screen, &area);
94 sprite_rects[nupdates++] = area; 93 sprite_rects[nupdates++] = area;
95 } 94 }
96 95
97 if (debug_flip) { 96 if (debug_flip) {
98 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) { 97 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
99 static int t = 0; 98 static int t = 0;
100 99
101 Uint32 color = SDL_MapRGB (screen->format, 255, 0, 0); 100 Uint32 color = SDL_MapRGB(screen->format, 255, 0, 0);
102 SDL_Rect r; 101 SDL_Rect r;
103 r.x = 102 r.x =
104 (sin ((float) t * 2 * 3.1459) + 1.0) / 2.0 * (screen->w - 20); 103 (sin((float) t * 2 * 3.1459) + 1.0) / 2.0 * (screen->w - 20);
105 r.y = 0; 104 r.y = 0;
106 r.w = 20; 105 r.w = 20;
107 r.h = screen->h; 106 r.h = screen->h;
108 107
109 SDL_FillRect (screen, &r, color); 108 SDL_FillRect(screen, &r, color);
110 t += 2; 109 t += 2;
111 } 110 }
112 } 111 }
113 112
114 /* Update the screen! */ 113 /* Update the screen! */
115 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) { 114 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
116 SDL_Flip (screen); 115 SDL_Flip(screen);
117 } else { 116 } else {
118 SDL_UpdateRects (screen, nupdates, sprite_rects); 117 SDL_UpdateRects(screen, nupdates, sprite_rects);
119 } 118 }
120 sprites_visible = 1; 119 sprites_visible = 1;
121 } 120 }
122 121
123 /* This is a way of telling whether or not to use hardware surfaces */ 122 /* This is a way of telling whether or not to use hardware surfaces */
124 Uint32 123 Uint32
125 FastestFlags (Uint32 flags, int width, int height, int bpp) 124 FastestFlags(Uint32 flags, int width, int height, int bpp)
126 { 125 {
127 const SDL_VideoInfo *info; 126 const SDL_VideoInfo *info;
128 127
129 /* Hardware acceleration is only used in fullscreen mode */ 128 /* Hardware acceleration is only used in fullscreen mode */
130 flags |= SDL_FULLSCREEN; 129 flags |= SDL_FULLSCREEN;
131 130
132 /* Check for various video capabilities */ 131 /* Check for various video capabilities */
133 info = SDL_GetVideoInfo (); 132 info = SDL_GetVideoInfo();
134 if (info->blit_hw_CC && info->blit_fill) { 133 if (info->blit_hw_CC && info->blit_fill) {
135 /* We use accelerated colorkeying and color filling */ 134 /* We use accelerated colorkeying and color filling */
136 flags |= SDL_HWSURFACE; 135 flags |= SDL_HWSURFACE;
137 } 136 }
138 /* If we have enough video memory, and will use accelerated 137 /* If we have enough video memory, and will use accelerated
152 /* Return the flags */ 151 /* Return the flags */
153 return (flags); 152 return (flags);
154 } 153 }
155 154
156 int 155 int
157 main (int argc, char *argv[]) 156 main(int argc, char *argv[])
158 { 157 {
159 SDL_Surface *screen; 158 SDL_Surface *screen;
160 Uint8 *mem; 159 Uint8 *mem;
161 int width, height; 160 int width, height;
162 Uint8 video_bpp; 161 Uint8 video_bpp;
165 int i, done; 164 int i, done;
166 SDL_Event event; 165 SDL_Event event;
167 Uint32 then, now, frames; 166 Uint32 then, now, frames;
168 167
169 /* Initialize SDL */ 168 /* Initialize SDL */
170 if (SDL_Init (SDL_INIT_VIDEO) < 0) { 169 if (SDL_Init(SDL_INIT_VIDEO) < 0) {
171 fprintf (stderr, "Couldn't initialize SDL: %s\n", SDL_GetError ()); 170 fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError());
172 return (1); 171 return (1);
173 } 172 }
174 173
175 numsprites = NUM_SPRITES; 174 numsprites = NUM_SPRITES;
176 videoflags = SDL_SWSURFACE | SDL_ANYFORMAT; 175 videoflags = SDL_SWSURFACE | SDL_ANYFORMAT;
178 height = 480; 177 height = 480;
179 video_bpp = 8; 178 video_bpp = 8;
180 debug_flip = 0; 179 debug_flip = 0;
181 while (argc > 1) { 180 while (argc > 1) {
182 --argc; 181 --argc;
183 if (strcmp (argv[argc - 1], "-width") == 0) { 182 if (strcmp(argv[argc - 1], "-width") == 0) {
184 width = atoi (argv[argc]); 183 width = atoi(argv[argc]);
185 --argc; 184 --argc;
186 } else if (strcmp (argv[argc - 1], "-height") == 0) { 185 } else if (strcmp(argv[argc - 1], "-height") == 0) {
187 height = atoi (argv[argc]); 186 height = atoi(argv[argc]);
188 --argc; 187 --argc;
189 } else if (strcmp (argv[argc - 1], "-bpp") == 0) { 188 } else if (strcmp(argv[argc - 1], "-bpp") == 0) {
190 video_bpp = atoi (argv[argc]); 189 video_bpp = atoi(argv[argc]);
191 videoflags &= ~SDL_ANYFORMAT; 190 videoflags &= ~SDL_ANYFORMAT;
192 --argc; 191 --argc;
193 } else if (strcmp (argv[argc], "-fast") == 0) { 192 } else if (strcmp(argv[argc], "-fast") == 0) {
194 videoflags = FastestFlags (videoflags, width, height, video_bpp); 193 videoflags = FastestFlags(videoflags, width, height, video_bpp);
195 } else if (strcmp (argv[argc], "-hw") == 0) { 194 } else if (strcmp(argv[argc], "-hw") == 0) {
196 videoflags ^= SDL_HWSURFACE; 195 videoflags ^= SDL_HWSURFACE;
197 } else if (strcmp (argv[argc], "-flip") == 0) { 196 } else if (strcmp(argv[argc], "-flip") == 0) {
198 videoflags ^= SDL_DOUBLEBUF; 197 videoflags ^= SDL_DOUBLEBUF;
199 } else if (strcmp (argv[argc], "-debugflip") == 0) { 198 } else if (strcmp(argv[argc], "-debugflip") == 0) {
200 debug_flip ^= 1; 199 debug_flip ^= 1;
201 } else if (strcmp (argv[argc], "-fullscreen") == 0) { 200 } else if (strcmp(argv[argc], "-fullscreen") == 0) {
202 videoflags ^= SDL_FULLSCREEN; 201 videoflags ^= SDL_FULLSCREEN;
203 } else if (isdigit (argv[argc][0])) { 202 } else if (isdigit(argv[argc][0])) {
204 numsprites = atoi (argv[argc]); 203 numsprites = atoi(argv[argc]);
205 } else { 204 } else {
206 fprintf (stderr, 205 fprintf(stderr,
207 "Usage: %s [-bpp N] [-hw] [-flip] [-fast] [-fullscreen] [numsprites]\n", 206 "Usage: %s [-bpp N] [-hw] [-flip] [-fast] [-fullscreen] [numsprites]\n",
208 argv[0]); 207 argv[0]);
209 quit (1); 208 quit(1);
210 } 209 }
211 } 210 }
212 211
213 /* Set video mode */ 212 /* Set video mode */
214 screen = SDL_SetVideoMode (width, height, video_bpp, videoflags); 213 screen = SDL_SetVideoMode(width, height, video_bpp, videoflags);
215 if (!screen) { 214 if (!screen) {
216 fprintf (stderr, "Couldn't set %dx%d video mode: %s\n", 215 fprintf(stderr, "Couldn't set %dx%d video mode: %s\n",
217 width, height, SDL_GetError ()); 216 width, height, SDL_GetError());
218 quit (2); 217 quit(2);
219 } 218 }
220 219
221 /* Load the sprite */ 220 /* Load the sprite */
222 if (LoadSprite ("icon.bmp") < 0) { 221 if (LoadSprite("icon.bmp") < 0) {
223 quit (1); 222 quit(1);
224 } 223 }
225 224
226 /* Allocate memory for the sprite info */ 225 /* Allocate memory for the sprite info */
227 mem = (Uint8 *) malloc (4 * sizeof (SDL_Rect) * numsprites); 226 mem = (Uint8 *) malloc(4 * sizeof(SDL_Rect) * numsprites);
228 if (mem == NULL) { 227 if (mem == NULL) {
229 SDL_FreeSurface (sprite); 228 SDL_FreeSurface(sprite);
230 fprintf (stderr, "Out of memory!\n"); 229 fprintf(stderr, "Out of memory!\n");
231 quit (2); 230 quit(2);
232 } 231 }
233 sprite_rects = (SDL_Rect *) mem; 232 sprite_rects = (SDL_Rect *) mem;
234 positions = sprite_rects; 233 positions = sprite_rects;
235 sprite_rects += numsprites; 234 sprite_rects += numsprites;
236 velocities = sprite_rects; 235 velocities = sprite_rects;
237 sprite_rects += numsprites; 236 sprite_rects += numsprites;
238 sprite_w = sprite->w; 237 sprite_w = sprite->w;
239 sprite_h = sprite->h; 238 sprite_h = sprite->h;
240 srand (time (NULL)); 239 srand(time(NULL));
241 for (i = 0; i < numsprites; ++i) { 240 for (i = 0; i < numsprites; ++i) {
242 positions[i].x = rand () % (screen->w - sprite_w); 241 positions[i].x = rand() % (screen->w - sprite_w);
243 positions[i].y = rand () % (screen->h - sprite_h); 242 positions[i].y = rand() % (screen->h - sprite_h);
244 positions[i].w = sprite->w; 243 positions[i].w = sprite->w;
245 positions[i].h = sprite->h; 244 positions[i].h = sprite->h;
246 velocities[i].x = 0; 245 velocities[i].x = 0;
247 velocities[i].y = 0; 246 velocities[i].y = 0;
248 while (!velocities[i].x && !velocities[i].y) { 247 while (!velocities[i].x && !velocities[i].y) {
249 velocities[i].x = (rand () % (MAX_SPEED * 2 + 1)) - MAX_SPEED; 248 velocities[i].x = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
250 velocities[i].y = (rand () % (MAX_SPEED * 2 + 1)) - MAX_SPEED; 249 velocities[i].y = (rand() % (MAX_SPEED * 2 + 1)) - MAX_SPEED;
251 } 250 }
252 } 251 }
253 background = SDL_MapRGB (screen->format, 0x00, 0x00, 0x00); 252 background = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00);
254 253
255 /* Print out information about our surfaces */ 254 /* Print out information about our surfaces */
256 printf ("Screen is at %d bits per pixel\n", screen->format->BitsPerPixel); 255 printf("Screen is at %d bits per pixel\n", screen->format->BitsPerPixel);
257 if ((screen->flags & SDL_HWSURFACE) == SDL_HWSURFACE) { 256 if ((screen->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
258 printf ("Screen is in video memory\n"); 257 printf("Screen is in video memory\n");
259 } else { 258 } else {
260 printf ("Screen is in system memory\n"); 259 printf("Screen is in system memory\n");
261 } 260 }
262 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) { 261 if ((screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF) {
263 printf ("Screen has double-buffering enabled\n"); 262 printf("Screen has double-buffering enabled\n");
264 } 263 }
265 if ((sprite->flags & SDL_HWSURFACE) == SDL_HWSURFACE) { 264 if ((sprite->flags & SDL_HWSURFACE) == SDL_HWSURFACE) {
266 printf ("Sprite is in video memory\n"); 265 printf("Sprite is in video memory\n");
267 } else { 266 } else {
268 printf ("Sprite is in system memory\n"); 267 printf("Sprite is in system memory\n");
269 } 268 }
270 /* Run a sample blit to trigger blit acceleration */ 269 /* Run a sample blit to trigger blit acceleration */
271 { 270 {
272 SDL_Rect dst; 271 SDL_Rect dst;
273 dst.x = 0; 272 dst.x = 0;
274 dst.y = 0; 273 dst.y = 0;
275 dst.w = sprite->w; 274 dst.w = sprite->w;
276 dst.h = sprite->h; 275 dst.h = sprite->h;
277 SDL_BlitSurface (sprite, NULL, screen, &dst); 276 SDL_BlitSurface(sprite, NULL, screen, &dst);
278 SDL_FillRect (screen, &dst, background); 277 SDL_FillRect(screen, &dst, background);
279 } 278 }
280 if ((sprite->flags & SDL_HWACCEL) == SDL_HWACCEL) { 279 if ((sprite->flags & SDL_HWACCEL) == SDL_HWACCEL) {
281 printf ("Sprite blit uses hardware acceleration\n"); 280 printf("Sprite blit uses hardware acceleration\n");
282 } 281 }
283 if ((sprite->flags & SDL_RLEACCEL) == SDL_RLEACCEL) { 282 if ((sprite->flags & SDL_RLEACCEL) == SDL_RLEACCEL) {
284 printf ("Sprite blit uses RLE acceleration\n"); 283 printf("Sprite blit uses RLE acceleration\n");
285 } 284 }
286 285
287 /* Loop, blitting sprites and waiting for a keystroke */ 286 /* Loop, blitting sprites and waiting for a keystroke */
288 frames = 0; 287 frames = 0;
289 then = SDL_GetTicks (); 288 then = SDL_GetTicks();
290 done = 0; 289 done = 0;
291 sprites_visible = 0; 290 sprites_visible = 0;
292 while (!done) { 291 while (!done) {
293 /* Check for events */ 292 /* Check for events */
294 ++frames; 293 ++frames;
295 while (SDL_PollEvent (&event)) { 294 while (SDL_PollEvent(&event)) {
296 switch (event.type) { 295 switch (event.type) {
297 case SDL_MOUSEBUTTONDOWN: 296 case SDL_MOUSEBUTTONDOWN:
298 SDL_WarpMouse (screen->w / 2, screen->h / 2); 297 SDL_WarpMouse(screen->w / 2, screen->h / 2);
299 break; 298 break;
300 case SDL_KEYDOWN: 299 case SDL_KEYDOWN:
301 /* Any keypress quits the app... */ 300 /* Any keypress quits the app... */
302 case SDL_QUIT: 301 case SDL_QUIT:
303 done = 1; 302 done = 1;
304 break; 303 break;
305 default: 304 default:
306 break; 305 break;
307 } 306 }
308 } 307 }
309 MoveSprites (screen, background); 308 MoveSprites(screen, background);
310 } 309 }
311 SDL_FreeSurface (sprite); 310 SDL_FreeSurface(sprite);
312 free (mem); 311 free(mem);
313 312
314 /* Print out some timing information */ 313 /* Print out some timing information */
315 now = SDL_GetTicks (); 314 now = SDL_GetTicks();
316 if (now > then) { 315 if (now > then) {
317 printf ("%2.2f frames per second\n", 316 printf("%2.2f frames per second\n",
318 ((double) frames * 1000) / (now - then)); 317 ((double) frames * 1000) / (now - then));
319 } 318 }
320 SDL_Quit (); 319 SDL_Quit();
321 return (0); 320 return (0);
322 } 321 }