eobish

diff src/main.cc @ 0:465ca72c9657

initial commit
author John Tsiombikas <nuclear@member.fsf.org>
date Sat, 17 Jan 2015 18:37:28 +0200
parents
children cdbcae5b3b98
line diff
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/src/main.cc	Sat Jan 17 18:37:28 2015 +0200
     1.3 @@ -0,0 +1,81 @@
     1.4 +#include <stdio.h>
     1.5 +#include <SDL/SDL.h>
     1.6 +
     1.7 +static void display();
     1.8 +static bool proc_event(SDL_Event *ev);
     1.9 +static void set_pal_entry(int idx, int r, int g, int b);
    1.10 +
    1.11 +static SDL_Surface *fbsurf;
    1.12 +
    1.13 +int main(int argc, char **argv)
    1.14 +{
    1.15 +	SDL_Init(SDL_INIT_VIDEO | SDL_INIT_TIMER);
    1.16 +
    1.17 +	if(!(fbsurf = SDL_SetVideoMode(320, 240, 8, SDL_SWSURFACE))) {
    1.18 +		fprintf(stderr, "failed to set video mode\n");
    1.19 +		return 1;
    1.20 +	}
    1.21 +	set_pal_entry(1, 255, 0, 0);
    1.22 +
    1.23 +	for(;;) {
    1.24 +		SDL_Event ev;
    1.25 +		while(SDL_PollEvent(&ev)) {
    1.26 +			if(!proc_event(&ev)) {
    1.27 +				goto done;
    1.28 +			}
    1.29 +		}
    1.30 +
    1.31 +		display();
    1.32 +	}
    1.33 +
    1.34 +done:
    1.35 +	SDL_Quit();
    1.36 +	return 0;
    1.37 +}
    1.38 +
    1.39 +void display()
    1.40 +{
    1.41 +	if(SDL_MUSTLOCK(fbsurf)) {
    1.42 +		SDL_LockSurface(fbsurf);
    1.43 +	}
    1.44 +
    1.45 +	unsigned char *pixels = (unsigned char*)fbsurf->pixels;
    1.46 +	for(int i=0; i<fbsurf->w * fbsurf->h; i++) {
    1.47 +		*pixels++ = 1;
    1.48 +	}
    1.49 +
    1.50 +	if(SDL_MUSTLOCK(fbsurf)) {
    1.51 +		SDL_UnlockSurface(fbsurf);
    1.52 +	}
    1.53 +
    1.54 +	SDL_Flip(fbsurf);
    1.55 +}
    1.56 +
    1.57 +static bool proc_event(SDL_Event *ev)
    1.58 +{
    1.59 +	switch(ev->type) {
    1.60 +	case SDL_KEYDOWN:
    1.61 +		if(ev->key.keysym.sym == SDLK_ESCAPE) {
    1.62 +			return false;
    1.63 +		}
    1.64 +		break;
    1.65 +
    1.66 +	default:
    1.67 +		break;
    1.68 +	}
    1.69 +	return true;
    1.70 +}
    1.71 +
    1.72 +static void set_pal_entry(int idx, int r, int g, int b)
    1.73 +{
    1.74 +	SDL_Color col;
    1.75 +	col.r = r;
    1.76 +	col.g = g;
    1.77 +	col.b = b;
    1.78 +
    1.79 +	SDL_SetPalette(fbsurf, SDL_LOGPAL | SDL_PHYSPAL, &col, idx, 1);
    1.80 +
    1.81 +	/*palette[idx].r = r;
    1.82 +	palette[idx].g = g;
    1.83 +	palette[idx].b = b;*/
    1.84 +}