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Added testfill to test raw fill performance
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/* Simple program: Fill the screen with colors as fast as possible */ | ||
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#include <stdlib.h> | ||
#include <stdio.h> | ||
#include <string.h> | ||
#include <time.h> | ||
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#include "SDL.h" | ||
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/* Call this instead of exit(), so we can clean up SDL: atexit() is evil. */ | ||
static void | ||
quit(int rc) | ||
{ | ||
SDL_Quit(); | ||
exit(rc); | ||
} | ||
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int | ||
main(int argc, char *argv[]) | ||
{ | ||
SDL_Surface *screen; | ||
int width, height; | ||
Uint8 video_bpp; | ||
Uint32 videoflags; | ||
Uint32 colors[3]; | ||
int i, done; | ||
SDL_Event event; | ||
Uint32 then, now, frames; | ||
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/* Initialize SDL */ | ||
if (SDL_Init(SDL_INIT_VIDEO) < 0) { | ||
fprintf(stderr, "Couldn't initialize SDL: %s\n", SDL_GetError()); | ||
return (1); | ||
} | ||
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width = 640; | ||
height = 480; | ||
video_bpp = 8; | ||
videoflags = 0; | ||
while (argc > 1) { | ||
--argc; | ||
if (strcmp(argv[argc - 1], "-width") == 0) { | ||
width = atoi(argv[argc]); | ||
--argc; | ||
} else if (strcmp(argv[argc - 1], "-height") == 0) { | ||
height = atoi(argv[argc]); | ||
--argc; | ||
} else if (strcmp(argv[argc - 1], "-bpp") == 0) { | ||
video_bpp = atoi(argv[argc]); | ||
--argc; | ||
} else if (strcmp(argv[argc], "-fullscreen") == 0) { | ||
videoflags ^= SDL_FULLSCREEN; | ||
} else { | ||
fprintf(stderr, | ||
"Usage: %s [-width N] [-height N] [-bpp N] [-fullscreen]\n", | ||
argv[0]); | ||
quit(1); | ||
} | ||
} | ||
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/* Set video mode */ | ||
screen = SDL_SetVideoMode(width, height, video_bpp, 0); | ||
if (!screen) { | ||
fprintf(stderr, "Couldn't set %dx%d video mode: %s\n", | ||
width, height, SDL_GetError()); | ||
quit(2); | ||
} | ||
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/* Get the colors */ | ||
colors[0] = SDL_MapRGB(screen->format, 0xFF, 0x00, 0x00); | ||
colors[1] = SDL_MapRGB(screen->format, 0x00, 0xFF, 0x00); | ||
colors[2] = SDL_MapRGB(screen->format, 0x00, 0x00, 0xFF); | ||
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/* Loop, filling and waiting for a keystroke */ | ||
frames = 0; | ||
then = SDL_GetTicks(); | ||
done = 0; | ||
while (!done) { | ||
/* Check for events */ | ||
++frames; | ||
while (SDL_PollEvent(&event)) { | ||
switch (event.type) { | ||
case SDL_MOUSEBUTTONDOWN: | ||
SDL_WarpMouse(screen->w / 2, screen->h / 2); | ||
break; | ||
case SDL_KEYDOWN: | ||
/* Any keypress quits the app... */ | ||
case SDL_QUIT: | ||
done = 1; | ||
break; | ||
default: | ||
break; | ||
} | ||
} | ||
SDL_FillRect(screen, NULL, colors[frames%3]); | ||
SDL_Flip(screen); | ||
} | ||
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/* Print out some timing information */ | ||
now = SDL_GetTicks(); | ||
if (now > then) { | ||
double fps = ((double) frames * 1000) / (now - then); | ||
printf("%2.2f frames per second\n", fps); | ||
} | ||
SDL_Quit(); | ||
return (0); | ||
} |