/* ************************************************************************** */
/*                                                                            */
/*  ML_bmp_16_or_cl.c                                                         */
/*  | Project : libmonochrome                                                 */
/*                                                                            */
/*  By: Pierre "PierrotLL" Le Gall <legallpierre89@gmail.com>                 */
/*  Last updated: 2011/11/22                                                  */
/*                                                                            */
/* ************************************************************************** */

#include <monochrome/internals.h>

void ML_bmp_16_or_cl(const unsigned short *bmp, int x, int y)
{
	unsigned long line;
	char i, shift, begin=0, end=16, bool1=1, bool2=1, bool3=1, *screen, *p=(char*)&line+1;
	if(!bmp || x<-15 || x>127 || y<-15 || y>63) return;
	if(y < 0) begin = -y;
	if(y > 48) end = 64-y;
	shift = 8-(x&7);
	if(x < 0) bool1 = 0;
	if(x<-8 || x>119) bool2 = 0;
	if(x>111 || shift==8) bool3 = 0;
	screen = ML_vram_adress()+(y+begin<<4)+(x>>3);
	for(i=begin ; i<end ; i++)
	{
		line = bmp[i]<<shift;
		if(bool1) screen[0] |= *p;
		if(bool2) screen[1] |= *(p+1);
		if(bool3) screen[2] |= *(p+2);
		screen += 16;
	}
}