Mercurial > sdl-ios-xcode
annotate test/testsprite.c @ 571:8e3ce997621c
Date: Thu, 16 Jan 2003 13:48:31 +0200
From: "Mike Gorchak"
Subject: All QNX patches
whole patches concerning QNX. Almost all code has been rewritten by Julian
and me. Added initial support for hw overlays in QNX and many many others
fixes.
P.S. This patches has been reviewed by Dave Rempel from QSSL and included in
SDL 1.2.5 distribution, which coming on 3rd party CD for newest 6.2.1
version of QNX, which will be available soon.
| author | Sam Lantinga <slouken@libsdl.org> |
|---|---|
| date | Mon, 20 Jan 2003 01:38:37 +0000 |
| parents | 21409a7a5fee |
| children | f00ccf8d8edc |
| rev | line source |
|---|---|
| 0 | 1 /* Simple program: Move N sprites around on the screen as fast as possible */ |
| 2 | |
| 3 #include <stdio.h> | |
| 4 #include <stdlib.h> | |
| 5 #include <string.h> | |
| 6 #include <ctype.h> | |
| 7 #include <time.h> | |
| 8 | |
| 9 #include "SDL.h" | |
| 10 | |
| 11 #define NUM_SPRITES 100 | |
| 12 #define MAX_SPEED 1 | |
| 13 | |
| 14 SDL_Surface *sprite; | |
| 15 int numsprites; | |
| 16 SDL_Rect *sprite_rects; | |
| 17 SDL_Rect *positions; | |
| 18 SDL_Rect *velocities; | |
| 19 int sprites_visible; | |
|
288
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
20 Uint16 sprite_w, sprite_h; |
| 0 | 21 |
| 22 int LoadSprite(SDL_Surface *screen, char *file) | |
| 23 { | |
| 24 SDL_Surface *temp; | |
| 25 | |
| 26 /* Load the sprite image */ | |
| 27 sprite = SDL_LoadBMP(file); | |
| 28 if ( sprite == NULL ) { | |
| 29 fprintf(stderr, "Couldn't load %s: %s", file, SDL_GetError()); | |
| 30 return(-1); | |
| 31 } | |
| 32 | |
| 33 /* Set transparent pixel as the pixel at (0,0) */ | |
| 34 if ( sprite->format->palette ) { | |
| 35 SDL_SetColorKey(sprite, (SDL_SRCCOLORKEY|SDL_RLEACCEL), | |
| 36 *(Uint8 *)sprite->pixels); | |
| 37 } | |
| 38 | |
| 39 /* Convert sprite to video format */ | |
| 40 temp = SDL_DisplayFormat(sprite); | |
| 41 SDL_FreeSurface(sprite); | |
| 42 if ( temp == NULL ) { | |
| 43 fprintf(stderr, "Couldn't convert background: %s\n", | |
| 44 SDL_GetError()); | |
| 45 return(-1); | |
| 46 } | |
| 47 sprite = temp; | |
| 48 | |
| 49 /* We're ready to roll. :) */ | |
| 50 return(0); | |
| 51 } | |
| 52 | |
| 53 void MoveSprites(SDL_Surface *screen, Uint32 background) | |
| 54 { | |
| 55 int i, nupdates; | |
| 56 SDL_Rect area, *position, *velocity; | |
| 57 | |
| 58 nupdates = 0; | |
| 59 /* Erase all the sprites if necessary */ | |
| 60 if ( sprites_visible ) { | |
| 61 SDL_FillRect(screen, NULL, background); | |
| 62 } | |
| 63 | |
| 64 /* Move the sprite, bounce at the wall, and draw */ | |
| 65 for ( i=0; i<numsprites; ++i ) { | |
| 66 position = &positions[i]; | |
| 67 velocity = &velocities[i]; | |
| 68 position->x += velocity->x; | |
|
288
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
69 if ( (position->x < 0) || (position->x >= (screen->w - sprite_w)) ) { |
| 0 | 70 velocity->x = -velocity->x; |
| 71 position->x += velocity->x; | |
| 72 } | |
| 73 position->y += velocity->y; | |
|
288
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
74 if ( (position->y < 0) || (position->y >= (screen->h - sprite_w)) ) { |
| 0 | 75 velocity->y = -velocity->y; |
| 76 position->y += velocity->y; | |
| 77 } | |
| 78 | |
| 79 /* Blit the sprite onto the screen */ | |
| 80 area = *position; | |
| 81 SDL_BlitSurface(sprite, NULL, screen, &area); | |
| 82 sprite_rects[nupdates++] = area; | |
| 83 } | |
| 84 | |
| 85 /* Update the screen! */ | |
| 86 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 87 SDL_Flip(screen); | |
| 88 } else { | |
| 89 SDL_UpdateRects(screen, nupdates, sprite_rects); | |
| 90 } | |
| 91 sprites_visible = 1; | |
| 92 } | |
| 93 | |
| 94 /* This is a way of telling whether or not to use hardware surfaces */ | |
|
107
01fcac5d146e
Fixed crash in testsprite when using the -fast option (nobody caught this?)
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
95 Uint32 FastestFlags(Uint32 flags, int width, int height, int bpp) |
| 0 | 96 { |
| 97 const SDL_VideoInfo *info; | |
| 98 | |
| 99 /* Hardware acceleration is only used in fullscreen mode */ | |
| 100 flags |= SDL_FULLSCREEN; | |
| 101 | |
| 102 /* Check for various video capabilities */ | |
| 103 info = SDL_GetVideoInfo(); | |
| 104 if ( info->blit_hw_CC && info->blit_fill ) { | |
| 105 /* We use accelerated colorkeying and color filling */ | |
| 106 flags |= SDL_HWSURFACE; | |
| 107 } | |
| 108 /* If we have enough video memory, and will use accelerated | |
| 109 blits directly to it, then use page flipping. | |
| 110 */ | |
| 111 if ( (flags & SDL_HWSURFACE) == SDL_HWSURFACE ) { | |
| 112 /* Direct hardware blitting without double-buffering | |
| 113 causes really bad flickering. | |
| 114 */ | |
|
107
01fcac5d146e
Fixed crash in testsprite when using the -fast option (nobody caught this?)
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
115 if ( info->video_mem*1024 > (height*width*bpp/8) ) { |
| 0 | 116 flags |= SDL_DOUBLEBUF; |
| 117 } else { | |
| 118 flags &= ~SDL_HWSURFACE; | |
| 119 } | |
| 120 } | |
| 121 | |
| 122 /* Return the flags */ | |
| 123 return(flags); | |
| 124 } | |
| 125 | |
| 126 int main(int argc, char *argv[]) | |
| 127 { | |
| 128 SDL_Surface *screen; | |
| 129 Uint8 *mem; | |
| 130 int width, height; | |
| 131 Uint8 video_bpp; | |
| 132 Uint32 videoflags; | |
| 133 Uint32 background; | |
| 134 int i, done; | |
| 135 SDL_Event event; | |
| 136 Uint32 then, now, frames; | |
| 137 | |
| 138 /* Initialize SDL */ | |
| 139 if ( SDL_Init(SDL_INIT_VIDEO) < 0 ) { | |
| 140 fprintf(stderr, "Couldn't initialize SDL: %s\n",SDL_GetError()); | |
| 141 exit(1); | |
| 142 } | |
| 143 atexit(SDL_Quit); | |
| 144 | |
| 145 numsprites = NUM_SPRITES; | |
| 146 videoflags = SDL_SWSURFACE|SDL_ANYFORMAT; | |
| 147 width = 640; | |
| 148 height = 480; | |
| 149 video_bpp = 8; | |
| 150 while ( argc > 1 ) { | |
| 151 --argc; | |
| 152 if ( strcmp(argv[argc-1], "-width") == 0 ) { | |
| 153 width = atoi(argv[argc]); | |
| 154 --argc; | |
| 155 } else | |
| 156 if ( strcmp(argv[argc-1], "-height") == 0 ) { | |
| 157 height = atoi(argv[argc]); | |
| 158 --argc; | |
| 159 } else | |
| 160 if ( strcmp(argv[argc-1], "-bpp") == 0 ) { | |
| 161 video_bpp = atoi(argv[argc]); | |
| 162 videoflags &= ~SDL_ANYFORMAT; | |
| 163 --argc; | |
| 164 } else | |
| 165 if ( strcmp(argv[argc], "-fast") == 0 ) { | |
|
107
01fcac5d146e
Fixed crash in testsprite when using the -fast option (nobody caught this?)
Sam Lantinga <slouken@lokigames.com>
parents:
0
diff
changeset
|
166 videoflags = FastestFlags(videoflags, width, height, video_bpp); |
| 0 | 167 } else |
| 168 if ( strcmp(argv[argc], "-hw") == 0 ) { | |
| 169 videoflags ^= SDL_HWSURFACE; | |
| 170 } else | |
| 171 if ( strcmp(argv[argc], "-flip") == 0 ) { | |
| 172 videoflags ^= SDL_DOUBLEBUF; | |
| 173 } else | |
| 174 if ( strcmp(argv[argc], "-fullscreen") == 0 ) { | |
| 175 videoflags ^= SDL_FULLSCREEN; | |
| 176 } else | |
| 177 if ( isdigit(argv[argc][0]) ) { | |
| 178 numsprites = atoi(argv[argc]); | |
| 179 } else { | |
| 180 fprintf(stderr, | |
| 181 "Usage: %s [-bpp N] [-hw] [-flip] [-fast] [-fullscreen] [numsprites]\n", | |
| 182 argv[0]); | |
| 183 exit(1); | |
| 184 } | |
| 185 } | |
| 186 | |
| 187 /* Set video mode */ | |
| 188 screen = SDL_SetVideoMode(width, height, video_bpp, videoflags); | |
| 189 if ( ! screen ) { | |
| 190 fprintf(stderr, "Couldn't set %dx%d video mode: %s\n", | |
| 191 width, height, SDL_GetError()); | |
| 192 exit(2); | |
| 193 } | |
| 194 | |
| 195 /* Load the sprite */ | |
| 196 if ( LoadSprite(screen, "icon.bmp") < 0 ) { | |
| 197 exit(1); | |
| 198 } | |
| 199 | |
| 200 /* Allocate memory for the sprite info */ | |
| 201 mem = (Uint8 *)malloc(4*sizeof(SDL_Rect)*numsprites); | |
| 202 if ( mem == NULL ) { | |
| 203 SDL_FreeSurface(sprite); | |
| 204 fprintf(stderr, "Out of memory!\n"); | |
| 205 exit(2); | |
| 206 } | |
| 207 sprite_rects = (SDL_Rect *)mem; | |
| 208 positions = sprite_rects; | |
| 209 sprite_rects += numsprites; | |
| 210 velocities = sprite_rects; | |
| 211 sprite_rects += numsprites; | |
|
288
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
212 sprite_w = sprite->w; |
|
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
213 sprite_h = sprite->h; |
| 0 | 214 srand(time(NULL)); |
| 215 for ( i=0; i<numsprites; ++i ) { | |
|
288
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
216 positions[i].x = rand()%(screen->w - sprite_w); |
|
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
217 positions[i].y = rand()%(screen->h - sprite_h); |
| 0 | 218 positions[i].w = sprite->w; |
| 219 positions[i].h = sprite->h; | |
| 220 velocities[i].x = 0; | |
| 221 velocities[i].y = 0; | |
| 222 while ( ! velocities[i].x && ! velocities[i].y ) { | |
| 223 velocities[i].x = (rand()%(MAX_SPEED*2+1))-MAX_SPEED; | |
| 224 velocities[i].y = (rand()%(MAX_SPEED*2+1))-MAX_SPEED; | |
| 225 } | |
| 226 } | |
| 227 background = SDL_MapRGB(screen->format, 0x00, 0x00, 0x00); | |
| 228 | |
| 229 /* Print out information about our surfaces */ | |
| 230 printf("Screen is at %d bits per pixel\n",screen->format->BitsPerPixel); | |
| 231 if ( (screen->flags & SDL_HWSURFACE) == SDL_HWSURFACE ) { | |
| 232 printf("Screen is in video memory\n"); | |
| 233 } else { | |
| 234 printf("Screen is in system memory\n"); | |
| 235 } | |
| 236 if ( (screen->flags & SDL_DOUBLEBUF) == SDL_DOUBLEBUF ) { | |
| 237 printf("Screen has double-buffering enabled\n"); | |
| 238 } | |
| 239 if ( (sprite->flags & SDL_HWSURFACE) == SDL_HWSURFACE ) { | |
| 240 printf("Sprite is in video memory\n"); | |
| 241 } else { | |
| 242 printf("Sprite is in system memory\n"); | |
| 243 } | |
| 244 /* Run a sample blit to trigger blit acceleration */ | |
| 245 { SDL_Rect dst; | |
| 246 dst.x = 0; | |
| 247 dst.y = 0; | |
| 248 dst.w = sprite->w; | |
| 249 dst.h = sprite->h; | |
| 250 SDL_BlitSurface(sprite, NULL, screen, &dst); | |
| 251 SDL_FillRect(screen, &dst, background); | |
| 252 } | |
| 253 if ( (sprite->flags & SDL_HWACCEL) == SDL_HWACCEL ) { | |
| 254 printf("Sprite blit uses hardware acceleration\n"); | |
| 255 } | |
| 256 if ( (sprite->flags & SDL_RLEACCEL) == SDL_RLEACCEL ) { | |
| 257 printf("Sprite blit uses RLE acceleration\n"); | |
| 258 } | |
| 259 | |
| 260 /* Loop, blitting sprites and waiting for a keystroke */ | |
| 261 frames = 0; | |
| 262 then = SDL_GetTicks(); | |
| 263 done = 0; | |
| 264 sprites_visible = 0; | |
| 265 while ( !done ) { | |
| 266 /* Check for events */ | |
| 267 ++frames; | |
| 268 while ( SDL_PollEvent(&event) ) { | |
| 269 switch (event.type) { | |
|
529
21409a7a5fee
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
288
diff
changeset
|
270 case SDL_MOUSEBUTTONDOWN: |
|
21409a7a5fee
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
288
diff
changeset
|
271 SDL_WarpMouse(screen->w/2, screen->h/2); |
|
21409a7a5fee
*** empty log message ***
Sam Lantinga <slouken@libsdl.org>
parents:
288
diff
changeset
|
272 break; |
| 0 | 273 case SDL_KEYDOWN: |
| 274 /* Any keypress quits the app... */ | |
| 275 case SDL_QUIT: | |
| 276 done = 1; | |
| 277 break; | |
| 278 default: | |
| 279 break; | |
| 280 } | |
| 281 } | |
| 282 MoveSprites(screen, background); | |
| 283 } | |
| 284 SDL_FreeSurface(sprite); | |
| 285 free(mem); | |
| 286 | |
| 287 /* Print out some timing information */ | |
| 288 now = SDL_GetTicks(); | |
| 289 if ( now > then ) { | |
| 290 printf("%2.2f frames per second\n", | |
| 291 ((double)frames*1000)/(now-then)); | |
| 292 } | |
|
288
2f5a6062db86
Updated for Watcom C++ and LCC compilers
Sam Lantinga <slouken@libsdl.org>
parents:
107
diff
changeset
|
293 SDL_Quit(); |
| 0 | 294 return(0); |
| 295 } |