12 static void handle_event(SDL_Event *ev);
13 static void toggle_fullscreen(void);
15 static int sdlkey_to_gamekey(int sdlkey, unsigned int mod);
19 static SDL_Surface *fbsurf;
21 static int fbscale = 1;
23 static unsigned int sdl_flags = SDL_SWSURFACE;
26 int main(int argc, char **argv)
32 if((env = getenv("FBSCALE")) && (s = atoi(env))) {
34 printf("Framebuffer scaling x%d\n", fbscale);
37 xsz = FB_WIDTH * fbscale;
38 ysz = FB_HEIGHT * fbscale;
40 fb_height = FB_HEIGHT;
42 fb_size = FB_WIDTH * FB_HEIGHT * FB_BPP / 8;
43 if(!(fb_buf = malloc(fb_size + FB_WIDTH * 4))) {
44 fprintf(stderr, "failed to allocate virtual framebuffer\n");
47 fb_pixels = (uint16_t*)((char*)fb_buf + FB_WIDTH * 2);
49 SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE);
50 if(!(fbsurf = SDL_SetVideoMode(xsz, ysz, FB_BPP, sdl_flags))) {
51 fprintf(stderr, "failed to set video mode %dx%d %dbpp\n", FB_WIDTH, FB_HEIGHT, FB_BPP);
56 SDL_WM_SetCaption("eradicate/SDL", 0);
60 if(init(argc, argv) == -1) {
70 while(SDL_PollEvent(&ev)) {
72 if(quit) goto break_evloop;
75 time_msec = get_msec();
92 unsigned long start = SDL_GetTicks();
93 unsigned long until = (start | 0xf) + 1;
94 while(SDL_GetTicks() <= until);
97 void blit_frame(void *pixels, int vsync)
100 unsigned short *sptr, *dptr;
108 if(SDL_MUSTLOCK(fbsurf)) {
109 SDL_LockSurface(fbsurf);
113 dptr = (unsigned short*)fbsurf->pixels + (fbsurf->w - xsz) / 2;
114 for(i=0; i<FB_HEIGHT; i++) {
115 for(j=0; j<FB_WIDTH; j++) {
117 unsigned short pixel = *sptr++;
119 for(y=0; y<fbscale; y++) {
120 for(x=0; x<fbscale; x++) {
121 dptr[y * fbsurf->w + x] = pixel;
126 dptr += (fbsurf->w - FB_WIDTH) * fbscale;
129 if(SDL_MUSTLOCK(fbsurf)) {
130 SDL_UnlockSurface(fbsurf);
136 static int bnmask(int sdlbn)
139 case SDL_BUTTON_LEFT:
140 return MOUSE_BN_LEFT;
141 case SDL_BUTTON_RIGHT:
142 return MOUSE_BN_RIGHT;
143 case SDL_BUTTON_MIDDLE:
144 return MOUSE_BN_MIDDLE;
152 static void handle_event(SDL_Event *ev)
163 if(ev->key.keysym.sym == SDLK_RETURN && (SDL_GetModState() & KMOD_ALT) &&
164 ev->key.state == SDL_PRESSED) {
169 key = sdlkey_to_gamekey(ev->key.keysym.sym, ev->key.keysym.mod);
170 key_event(key, ev->key.state == SDL_PRESSED ? 1 : 0);
172 if(ev->key.keysym.sym == SDLK_ESCAPE) {
179 case SDL_MOUSEMOTION:
180 mouse_x = ev->motion.x / fbscale;
181 mouse_y = ev->motion.y / fbscale;
184 case SDL_MOUSEBUTTONDOWN:
185 mouse_bmask |= bnmask(ev->button.button);
187 case SDL_MOUSEBUTTONUP:
188 mouse_bmask &= ~bnmask(ev->button.button);
190 mouse_x = ev->button.x / fbscale;
191 mouse_y = ev->button.y / fbscale;
200 static void toggle_fullscreen(void)
202 SDL_Surface *newsurf;
203 unsigned int newflags = sdl_flags ^ SDL_FULLSCREEN;
205 if(!(newsurf = SDL_SetVideoMode(xsz, ysz, FB_BPP, newflags))) {
206 fprintf(stderr, "failed to go %s\n", newflags & SDL_FULLSCREEN ? "fullscreen" : "windowed");
211 sdl_flags = newflags;
216 static char symshift[] = {
217 '"', 0, 0, 0, 0, '<', '_', '>', '?',
218 ')', '!', '@', '#', '$', '%', '^', '&', '*', '(',
219 0, ':', 0, '+', 0, 0, 0,
220 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
221 '{', '|', '}', 0, 0, '~'
225 static int sdlkey_to_gamekey(int sdlkey, unsigned int mod)
228 if(mod & (KMOD_SHIFT)) {
229 if(sdlkey >= 'a' && sdlkey <= 'z') {
230 sdlkey = toupper(sdlkey);
231 } else if(sdlkey >= SSORG && sdlkey <= SSEND) {
232 sdlkey = symshift[sdlkey - SSORG];
237 if(sdlkey < 256) return 0;