fbxmask.c

libfxb是linux下只写操作framebuffer的一个轻量级的库。

#include <libfbx/libfbx.h>
#include <stdlib.h>
#include <time.h>
#include <config.h>

int main()
{
	int i;
	int r, g, b;
	fb_surface *image;
	fb_surface *image2;

	fb_init();
	
	image = fb_load_ppm(IMAGEDIR "/smiley_mask.ppm");
	image2 = fb_load_ppm(IMAGEDIR "/smiley.ppm");

	fb_cls();

	for(i = 0; i < 150; i++)
	{
		fb_line(rand() % 100 + fb_screen->width / 2 - 50, rand() % 100 + fb_screen->height / 2 - 50,
			rand() % 100 + fb_screen->width / 2 - 50, rand() % 100 + fb_screen->height / 2 - 50,
			rand() % 256, rand() % 256, rand() % 256,
			fb_screen);
	}

	fb_getpixel(0, 0, &r, &g, &b, image);
	
	fb_printf(0, 0, "Masked image, bg = (%x, %x, %x)", r, g, b);

	fb_draw_masked_image(image, fb_screen, 
			     (fb_screen->width - image->width) / 2,
			     (fb_screen->height - image->height) / 2,
			     image->width, image->height);

	sleep(4);

	fb_getpixel(0, 0, &r, &g, &b, image2);

	fb_printf(0, 0, "Unmasked image, bg = (%x, %x, %x)", r, g, b);

	fb_draw_image(image2, fb_screen,
		      (fb_screen->width - image2->width) / 2,
		      (fb_screen->height - image2->height) / 2);

	sleep(4);

	fb_cleanup();

	return 0;
}