Created a set_zoom function
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neauoire
parent
8b83ae7e38
commit
6f10839acf
123
src/uxnemu.c
123
src/uxnemu.c
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@ -21,7 +21,10 @@ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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WITH REGARD TO THIS SOFTWARE.
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*/
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#define WIDTH 64 * 8
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#define HEIGHT 40 * 8
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#define PAD 4
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#define FIXED_SIZE 0
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#define POLYPHONY 4
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#define BENCH 0
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@ -36,11 +39,9 @@ static SDL_Rect gRect;
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static Ppu ppu;
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static Apu apu[POLYPHONY];
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static Device *devsystem, *devscreen, *devmouse, *devctrl, *devaudio0, *devconsole;
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static Uint8 zoom = 1, reqdraw = 0;
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static Uint32 *ppu_screen, stdin_event, audio0_event, palette[16];
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static Uint8 zoom = 1;
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static unsigned int reqdraw = 0;
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static Uint8 font[][8] = {
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{0x00, 0x7c, 0x82, 0x82, 0x82, 0x82, 0x82, 0x7c},
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{0x00, 0x30, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10},
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@ -72,6 +73,8 @@ error(char *msg, const char *err)
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return 0;
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}
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#pragma mark - Generics
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static void
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audio_callback(void *u, Uint8 *stream, int len)
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{
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@ -85,6 +88,25 @@ audio_callback(void *u, Uint8 *stream, int len)
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(void)u;
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}
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void
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apu_finished_handler(Apu *c)
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{
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SDL_Event event;
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event.type = audio0_event + (c - apu);
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SDL_PushEvent(&event);
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}
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static int
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stdin_handler(void *p)
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{
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SDL_Event event;
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event.type = stdin_event;
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while(read(0, &event.cbutton.button, 1) > 0)
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SDL_PushEvent(&event);
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return 0;
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(void)p;
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}
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static void
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set_window_size(SDL_Window *window, int w, int h)
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{
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@ -168,9 +190,11 @@ toggle_debug(Uxn *u)
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}
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static void
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toggle_zoom(Uxn *u)
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set_zoom(Uxn *u, Uint8 scale)
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{
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zoom = zoom == 3 ? 1 : zoom + 1;
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if(scale == zoom)
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return;
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zoom = clamp(scale, 1, 3);
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set_window_size(gWindow, (ppu.width + PAD * 2) * zoom, (ppu.height + PAD * 2) * zoom);
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redraw(u);
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}
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@ -192,19 +216,6 @@ capture_screen(void)
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fprintf(stderr, "Saved %s\n", fname);
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}
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static void
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quit(void)
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{
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SDL_UnlockAudioDevice(audio_id);
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SDL_DestroyTexture(gTexture);
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gTexture = NULL;
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SDL_DestroyRenderer(gRenderer);
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gRenderer = NULL;
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SDL_DestroyWindow(gWindow);
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SDL_Quit();
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exit(0);
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}
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static int
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set_size(Uint16 width, Uint16 height, int is_resize)
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{
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@ -227,10 +238,23 @@ set_size(Uint16 width, Uint16 height, int is_resize)
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return 1;
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}
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static int
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init(void)
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static void
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quit(void)
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{
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const Uint16 width = 64 * 8, height = 40 * 8;
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SDL_UnlockAudioDevice(audio_id);
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SDL_DestroyTexture(gTexture);
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gTexture = NULL;
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SDL_DestroyRenderer(gRenderer);
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gRenderer = NULL;
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SDL_DestroyWindow(gWindow);
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SDL_Quit();
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exit(0);
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}
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static int
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init(Uxn *u)
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{
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SDL_DisplayMode DM;
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SDL_AudioSpec as;
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SDL_zero(as);
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as.freq = SAMPLE_FREQUENCY;
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@ -248,16 +272,19 @@ init(void)
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if(!audio_id)
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error("sdl_audio", SDL_GetError());
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}
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gWindow = SDL_CreateWindow("Uxn", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, (width + PAD * 2) * zoom, (height + PAD * 2) * zoom, SDL_WINDOW_SHOWN);
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gWindow = SDL_CreateWindow("Uxn", SDL_WINDOWPOS_UNDEFINED, SDL_WINDOWPOS_UNDEFINED, (WIDTH + PAD * 2) * zoom, (HEIGHT + PAD * 2) * zoom, SDL_WINDOW_SHOWN);
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if(gWindow == NULL)
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return error("sdl_window", SDL_GetError());
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gRenderer = SDL_CreateRenderer(gWindow, -1, 0);
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if(gRenderer == NULL)
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return error("sdl_renderer", SDL_GetError());
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if(!set_size(width, height, 0))
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return 0;
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stdin_event = SDL_RegisterEvents(1);
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audio0_event = SDL_RegisterEvents(POLYPHONY);
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SDL_CreateThread(stdin_handler, "stdin", NULL);
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SDL_StartTextInput();
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SDL_ShowCursor(SDL_DISABLE);
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SDL_GetCurrentDisplayMode(0, &DM);
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set_zoom(u, DM.w / 1000);
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return 1;
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}
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@ -299,7 +326,7 @@ doctrl(Uxn *u, SDL_Event *event, int z)
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case SDLK_DOWN: flag = 0x20; break;
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case SDLK_LEFT: flag = 0x40; break;
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case SDLK_RIGHT: flag = 0x80; break;
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case SDLK_F1: if(z) toggle_zoom(u); break;
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case SDLK_F1: if(z) set_zoom(u, zoom == 3 ? 1 : zoom + 1); break;
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case SDLK_F2: if(z) toggle_debug(u); break;
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case SDLK_F3: if(z) capture_screen(); break;
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}
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@ -414,10 +441,8 @@ file_talk(Device *d, Uint8 b0, Uint8 w)
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Uint16 addr = peek16(d->dat, b0 - 1);
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FILE *f = fopen(name, read ? "rb" : (offset ? "ab" : "wb"));
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if(f) {
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/* fprintf(stderr, "%s %s %s #%04x, ", read ? "Loading" : "Saving", name, read ? "to" : "from", addr); */
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if(fseek(f, offset, SEEK_SET) != -1)
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result = read ? fread(&d->mem[addr], 1, length, f) : fwrite(&d->mem[addr], 1, length, f);
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/* fprintf(stderr, "%04x bytes\n", result); */
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fclose(f);
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}
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poke16(d->dat, 0x2, result);
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@ -478,27 +503,6 @@ nil_talk(Device *d, Uint8 b0, Uint8 w)
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return 1;
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}
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#pragma mark - Generics
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void
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apu_finished_handler(Apu *c)
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{
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SDL_Event event;
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event.type = audio0_event + (c - apu);
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SDL_PushEvent(&event);
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}
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static int
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stdin_handler(void *p)
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{
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SDL_Event event;
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event.type = stdin_event;
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while(read(0, &event.cbutton.button, 1) > 0)
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SDL_PushEvent(&event);
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return 0;
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(void)p;
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}
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static const char *errors[] = {"underflow", "overflow", "division by zero"};
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int
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@ -508,7 +512,7 @@ uxn_halt(Uxn *u, Uint8 error, char *name, int id)
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return 0;
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}
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static void
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static int
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run(Uxn *u)
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{
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uxn_eval(u, PAGE_PROGRAM);
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@ -521,7 +525,7 @@ run(Uxn *u)
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while(SDL_PollEvent(&event) != 0) {
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switch(event.type) {
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case SDL_QUIT:
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return;
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return error("Run", "Quit.");
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case SDL_TEXTINPUT:
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devctrl->dat[3] = event.text.text[0]; /* fall-thru */
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case SDL_KEYDOWN:
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@ -561,6 +565,7 @@ run(Uxn *u)
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SDL_Delay(clamp(16.666f - elapsed, 0, 1000));
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}
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}
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return error("Run", "Ended.");
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}
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static int
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@ -581,25 +586,19 @@ main(int argc, char **argv)
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if(argc < 2) return error("usage", "uxnemu file.rom");
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if(!uxn_boot(&u)) return error("Boot", "Failed to start uxn.");
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if(!load(&u, argv[argc - 1])) return error("Load", "Failed to open rom.");
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if(!init(&u)) return error("Init", "Failed to initialize emulator.");
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if(!set_size(WIDTH, HEIGHT, 0)) return error("Window", "Failed to set window size.");
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for(i = 1; i < argc - 1; i++) {
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if(strcmp(argv[i], "-s") == 0) {
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if((i + 1) < argc - 1) {
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zoom = atoi(argv[++i]);
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if(zoom < 1 || zoom > 3) return error("Opt", "-s Scale must be between 1 and 3.");
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} else {
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if((i + 1) < argc - 1)
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set_zoom(&u, atoi(argv[++i]));
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else
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return error("Opt", "-s No scale provided.");
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}
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}
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}
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if(!load(&u, argv[argc - 1])) return error("Load", "Failed to open rom.");
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if(!init()) return error("Init", "Failed to initialize emulator.");
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stdin_event = SDL_RegisterEvents(1);
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audio0_event = SDL_RegisterEvents(POLYPHONY);
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SDL_CreateThread(stdin_handler, "stdin", NULL);
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/* system */ devsystem = uxn_port(&u, 0x0, system_talk);
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/* console */ devconsole = uxn_port(&u, 0x1, console_talk);
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/* screen */ devscreen = uxn_port(&u, 0x2, screen_talk);
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