libmonochrome/src/ML_pixel_test.c

/* ************************************************************************** */
/*                                                                            */
/*  ML_pixel_test.c                                                           */
/*  | Project : libmonochrome                                                 */
/*                                                                            */
/*  By: Pierre "PierrotLL" Le Gall <legallpierre89@gmail.com>                 */
/*  Last updated: 2011/11/22                                                  */
/*                                                                            */
/* ************************************************************************** */

#include <monochrome/internals.h>

ML_Color ML_pixel_test(int x, int y)
{
	if (x & ~127 || y & ~63)
		return ML_TRANSPARENT;
	char *vram = ML_vram_xy(x, y);
	int byte = 128 >> (x & 7);

	return (*vram & byte ? ML_BLACK : ML_WHITE);
}