nuclear@5: #include "config.h"
nuclear@5: #include <stdio.h>
nuclear@5: #include <stdlib.h>
nuclear@5: #include <SDL.h>
nuclear@5: #include "gbasys.h"
nuclear@5: #include "game.h"
nuclear@5: 
nuclear@9: #ifdef PALMODE
nuclear@9: #define BPP		8
nuclear@9: #define PIXSZ	1
nuclear@9: #else
nuclear@9: #define BPP		16
nuclear@9: #define PIXSZ	2
nuclear@9: #endif
nuclear@9: 
nuclear@5: static int proc_events(SDL_Event *ev);
nuclear@5: static void handle_keyboard(int key, int state);
nuclear@5: 
nuclear@5: struct pixel_buffer *back_buffer, *front_buffer;
nuclear@5: 
nuclear@5: static SDL_Surface *surf;
nuclear@5: static struct pixel_buffer bbuf;
nuclear@5: static unsigned int keystate;
nuclear@6: static int sdlscale = 2;
nuclear@5: 
nuclear@5: int main(void)
nuclear@5: {
nuclear@6: 	int i, j, k, l;
nuclear@6: 	char *env;
nuclear@6: 
nuclear@6: 	if((env = getenv("SDLSCALE"))) {
nuclear@6: 		if(!(sdlscale = atoi(env))) {
nuclear@6: 			fprintf(stderr, "invalid SDLSCALE envvar value (%s)\n", env);
nuclear@6: 			sdlscale = 2;
nuclear@6: 		}
nuclear@6: 	}
nuclear@5: 
nuclear@5: 	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER | SDL_INIT_NOPARACHUTE);
nuclear@5: 
nuclear@9: 	if(!(surf = SDL_SetVideoMode(WIDTH * sdlscale, HEIGHT * sdlscale, BPP, SDL_SWSURFACE))) {
nuclear@5: 		fprintf(stderr, "failed to initialize graphics\n");
nuclear@5: 		return 1;
nuclear@5: 	}
nuclear@5: 	SDL_WM_SetCaption("trycatch", 0);
nuclear@5: 
nuclear@5: 	bbuf.x = WIDTH;
nuclear@5: 	bbuf.y = HEIGHT;
nuclear@9: 	bbuf.bpp = BPP;
nuclear@9: 	if(!(bbuf.pixels = malloc(WIDTH * HEIGHT * PIXSZ))) {
nuclear@5: 		fprintf(stderr, "failed to allocate framebuffer (%dx%d)\n", WIDTH, HEIGHT);
nuclear@5: 		SDL_Quit();
nuclear@5: 		return 1;
nuclear@5: 	}
nuclear@5: 
nuclear@5: 	back_buffer = front_buffer = &bbuf;
nuclear@5: 
nuclear@8: 	if(game_init() == -1) {
nuclear@8: 		SDL_Quit();
nuclear@8: 		return 1;
nuclear@8: 	}
nuclear@8: 
nuclear@5: 	for(;;) {
nuclear@5: 		SDL_Event ev;
nuclear@9: #ifdef PALMODE
nuclear@9: 		uint8_t *dest, *src;
nuclear@9: #else
nuclear@5: 		uint16_t *dest, *src;
nuclear@9: #endif
nuclear@5: 
nuclear@5: 		while(SDL_PollEvent(&ev)) {
nuclear@5: 			if(proc_events(&ev) == -1) {
nuclear@5: 				goto done;
nuclear@5: 			}
nuclear@5: 		}
nuclear@5: 
nuclear@5: 		game_draw();
nuclear@5: 
nuclear@5: 		if(SDL_MUSTLOCK(surf)) {
nuclear@5: 			SDL_LockSurface(surf);
nuclear@5: 		}
nuclear@5: 
nuclear@5: 		src = bbuf.pixels;
nuclear@5: 		dest = surf->pixels;
nuclear@5: 
nuclear@5: 		for(i=0; i<HEIGHT; i++) {
nuclear@5: 			for(j=0; j<WIDTH; j++) {
nuclear@6: 				uint16_t pixel = *src++;
nuclear@13: 				unsigned int red = GET_R(pixel);
nuclear@13: 				unsigned int green = GET_G(pixel);
nuclear@13: 				unsigned int blue = GET_B(pixel);
nuclear@13: 
nuclear@13: 				pixel = ((blue >> 3) << 11) | ((green >> 2) << 5) | (red >> 3);
nuclear@6: 
nuclear@6: 				for(k=0; k<sdlscale; k++) {
nuclear@6: 					for(l=0; l<sdlscale; l++) {
nuclear@6: 						dest[k * sdlscale * WIDTH + l] = pixel;
nuclear@6: 					}
nuclear@6: 				}
nuclear@6: 				dest += sdlscale;
nuclear@5: 			}
nuclear@6: 			dest += WIDTH * sdlscale * (sdlscale - 1);
nuclear@5: 		}
nuclear@5: 
nuclear@5: 		if(SDL_MUSTLOCK(surf)) {
nuclear@5: 			SDL_UnlockSurface(surf);
nuclear@5: 		}
nuclear@5: 		keystate = 0;
nuclear@5: 	}
nuclear@5: 
nuclear@5: done:
nuclear@5: 	SDL_Quit();
nuclear@5: 	return 0;
nuclear@5: }
nuclear@5: 
nuclear@5: void flip(void)
nuclear@5: {
nuclear@5: 	SDL_Flip(surf);
nuclear@5: }
nuclear@5: 
nuclear@5: void clear_buffer(struct pixel_buffer *pbuf, unsigned short color)
nuclear@5: {
nuclear@9: 	int i, sz = pbuf->x * pbuf->y;
nuclear@5: 	unsigned short *pixels = pbuf->pixels;
nuclear@5: 
nuclear@9: #ifdef PALMODE
nuclear@9: 	color |= color << 8;
nuclear@9: 	sz /= 2;
nuclear@9: #endif
nuclear@9: 
nuclear@9: 	for(i=0; i<sz; i++) {
nuclear@5: 		*pixels++ = color;
nuclear@5: 	}
nuclear@5: }
nuclear@5: 
nuclear@9: void set_palette(int idx, int r, int g, int b)
nuclear@9: {
nuclear@9: 	SDL_Color col;
nuclear@9: 	col.r = r;
nuclear@9: 	col.g = g;
nuclear@9: 	col.b = b;
nuclear@9: 
nuclear@9: 	if(SDL_SetPalette(surf, SDL_LOGPAL | SDL_PHYSPAL, &col, idx, 1) != 1) {
nuclear@9: 		fprintf(stderr, "set_palette failed to set the required color\n");
nuclear@9: 	}
nuclear@9: }
nuclear@9: 
nuclear@9: 
nuclear@5: int get_key_state(int key)
nuclear@5: {
nuclear@5: 	return keystate & key;
nuclear@5: }
nuclear@5: 
nuclear@5: unsigned long get_millisec(void)
nuclear@5: {
nuclear@5: 	return SDL_GetTicks();
nuclear@5: }
nuclear@5: 
nuclear@5: static int proc_events(SDL_Event *ev)
nuclear@5: {
nuclear@5: 	switch(ev->type) {
nuclear@5: 	case SDL_KEYDOWN:
nuclear@5: 	case SDL_KEYUP:
nuclear@9: 		handle_keyboard(ev->key.keysym.sym, ev->key.state);
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case SDL_QUIT:
nuclear@5: 		return -1;
nuclear@5: 	}
nuclear@5: 
nuclear@5: 	return 0;
nuclear@5: }
nuclear@5: 
nuclear@5: static void handle_keyboard(int key, int state)
nuclear@5: {
nuclear@5: 	int gba_key = -1;
nuclear@5: 
nuclear@5: 	switch(key) {
nuclear@5: 	case SDLK_ESCAPE:
nuclear@5: 		{
nuclear@5: 			SDL_Event ev;
nuclear@5: 			ev.type = SDL_QUIT;
nuclear@5: 			SDL_PushEvent(&ev);
nuclear@5: 		}
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case 'a':
nuclear@5: 	case 'A':
nuclear@5: 	case SDLK_LEFT:
nuclear@5: 		gba_key = KEY_LEFT;
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case 'd':
nuclear@5: 	case 'D':
nuclear@5: 	case SDLK_RIGHT:
nuclear@5: 		gba_key = KEY_RIGHT;
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case 'w':
nuclear@5: 	case 'W':
nuclear@5: 	case SDLK_UP:
nuclear@5: 		gba_key = KEY_UP;
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case 's':
nuclear@5: 	case 'S':
nuclear@5: 	case SDLK_DOWN:
nuclear@5: 		gba_key = KEY_DOWN;
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case '\n':
nuclear@9: 	case '\r':
nuclear@5: 		gba_key = KEY_A;
nuclear@5: 		break;
nuclear@5: 	case '\b':
nuclear@5: 		gba_key = KEY_B;
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case ',':
nuclear@5: 		gba_key = KEY_SELECT;
nuclear@5: 		break;
nuclear@5: 	case '.':
nuclear@5: 		gba_key = KEY_START;
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	case '[':
nuclear@5: 		gba_key = KEY_L;
nuclear@5: 		break;
nuclear@5: 	case ']':
nuclear@5: 		gba_key = KEY_R;
nuclear@5: 		break;
nuclear@5: 
nuclear@5: 	default:
nuclear@5: 		return;
nuclear@5: 	}
nuclear@5: 
nuclear@5: 	keystate |= gba_key;
nuclear@5: 	game_keyb(gba_key, state);
nuclear@5: }