view test/nds-test-progs/general/source/main.c @ 3473:7bdc10624cba

This is terrible, but the OpenGL standard says that lines are half open, which means that one endpoint is not covered so adjoining lines don't overlap. It also doesn't define which end is open, and indeed Mac OS X and Linux differ. Mac OS X seems to leave the second endpoint open, but Linux uses the right-most endpoint for x major lines and the bottom-most endpoint for y major lines.
author Sam Lantinga <slouken@libsdl.org>
date Sat, 21 Nov 2009 07:14:21 +0000
parents 204be4fc2726
children 7aba0406c273
line wrap: on
line source


#include <SDL/SDL.h>
#if defined(NDS) || defined(__NDS__) || defined (__NDS)
#include <nds.h>
#include <fat.h>
#else
#define swiWaitForVBlank()
#define consoleDemoInit()
#define fatInitDefault()
#define RGB15(r,g,b) SDL_MapRGB(screen->format,((r)<<3),((g)<<3),((b)<<3))
#endif
    void
splash(SDL_Surface * screen, int s)
{
    SDL_Surface *logo;
    SDL_Rect area = { 0, 0, 256, 192 };

    logo = SDL_LoadBMP("sdl.bmp");
    if (!logo) {
        printf("Couldn't splash.\n");
        return;
    }
    /*logo->flags &= ~SDL_PREALLOC; */
    SDL_BlitSurface(logo, NULL, screen, &area);
    SDL_Flip(screen);
    while (s-- > 0) {
        int i = 60;
        while (--i)
            swiWaitForVBlank();
    }
}


int
main(void)
{
    SDL_Surface *screen;
    SDL_Joystick *stick;
    SDL_Event event;
    SDL_Rect rect = { 0, 0, 256, 192 };
    int i;

    consoleDemoInit();
    puts("Hello world!  Initializing FAT...");
    fatInitDefault();
    
if (SDL_Init(SDL_INIT_VIDEO | SDL_INIT_JOYSTICK) < 0) {
        puts("# error initializing SDL");
        puts(SDL_GetError());
        return 1;
    }
    puts("* initialized SDL");
    screen = SDL_SetVideoMode(256, 192, 15, SDL_SWSURFACE);
    if (!screen) {
        puts("# error setting video mode");
        puts(SDL_GetError());
        return 2;
    }
    screen->flags &= ~SDL_PREALLOC;
    puts("* set video mode");
    stick = SDL_JoystickOpen(0);
    if (stick == NULL) {
        puts("# error opening joystick");
        puts(SDL_GetError());
//              return 3;
    }
    puts("* opened joystick");

    /*splash(screen, 3); */

    SDL_FillRect(screen, &rect, RGB15(0, 0, 31) | 0x8000);
    SDL_Flip(screen);

    while (1)
        while (SDL_PollEvent(&event))
            switch (event.type) {
            case SDL_JOYBUTTONDOWN:
                SDL_FillRect(screen, &rect, (u16) rand() | 0x8000);
                SDL_Flip(screen);
                if (rect.w > 8) {
                    rect.x += 4;
                    rect.y += 3;
                    rect.w -= 8;
                    rect.h -= 6;
                }
                printf("button %d pressed at %d ticks\n",
                       event.jbutton.which, SDL_GetTicks());
                break;
            case SDL_QUIT:
                SDL_Quit();
                return 0;
            default:
                break;
            }
    
return 0;

}