7 static void handle_event(SDL_Event *ev);
10 static long start_time;
11 static SDL_Surface *fbsurf;
13 static int fbscale = 2;
16 int main(int argc, char **argv)
20 unsigned short *sptr, *dptr;
21 unsigned int sdl_flags = SDL_SWSURFACE;
23 if((env = getenv("FBSCALE")) && (s = atoi(env))) {
25 printf("Framebuffer scaling x%d\n", fbscale);
28 xsz = fb_width * fbscale;
29 ysz = fb_height * fbscale;
31 if(!(fb_pixels = malloc(fb_width * fb_height * fb_bpp / CHAR_BIT))) {
32 fprintf(stderr, "failed to allocate virtual framebuffer\n");
36 SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER);
37 if(!(fbsurf = SDL_SetVideoMode(xsz, ysz, fb_bpp, sdl_flags))) {
38 fprintf(stderr, "failed to set video mode %dx%d %dbpp\n", fb_width, fb_height, fb_bpp);
43 SDL_WM_SetCaption("dosdemo/SDL", 0);
46 if(demo_init(argc, argv) == -1) {
51 start_time = SDL_GetTicks();
55 while(SDL_PollEvent(&ev)) {
57 if(quit) goto break_evloop;
60 time_msec = SDL_GetTicks() - start_time;
63 if(SDL_MUSTLOCK(fbsurf)) {
64 SDL_LockSurface(fbsurf);
68 dptr = fbsurf->pixels;
69 for(i=0; i<fb_height; i++) {
70 for(j=0; j<fb_width; j++) {
72 unsigned short pixel = *sptr++;
74 for(y=0; y<fbscale; y++) {
75 for(x=0; x<fbscale; x++) {
76 dptr[y * xsz + x] = pixel;
81 dptr += xsz * (fbscale - 1);
84 if(SDL_MUSTLOCK(fbsurf)) {
85 SDL_UnlockSurface(fbsurf);
101 static void handle_event(SDL_Event *ev)
110 demo_keyboard(ev->key.keysym.sym, ev->key.state == SDL_PRESSED ? 1 : 0);
113 case SDL_MOUSEMOTION:
114 mouse_x = ev->motion.x / fbscale;
115 mouse_y = ev->motion.y / fbscale;
118 case SDL_MOUSEBUTTONDOWN:
119 mouse_bmask |= 1 << ev->button.button;
121 case SDL_MOUSEBUTTONUP:
122 mouse_bmask &= ~(1 << ev->button.button);
124 mouse_x = ev->button.x / fbscale;
125 mouse_y = ev->button.y / fbscale;