tmp1.c

嵌入式下实验的新的驱动设计源代码

int
_lcd_bitmap (void *fbuf,
	     int x,
	     int y, int width, int height, unsigned char *bitmap, int xorm)
{
	unsigned char *dst;
	unsigned char *src;
	int width_bytes;
	int yi;
	int i;



	dst = fbuf + y * (320 * 3 * 4 / 8) + x * 12 / 8;
	width_bytes = width * 3 * 4 / 8;
	src = bitmap;
	for (yi = 0; yi < height; yi++)
	{
		for (i = 0; i < 8; i++)
		{
			if (*(src + yi) & (0x80 >> 0)) {
				*(dst + 0) = 0x77;
                                *(dst + 1) &=0xf0;
                                *(dst + 1) |=0x07;
                        }
			else {
				*(dst + 0) = 0x00;
                                *(dst + 1) &=0xf0;
                        }
			if (*(src + yi) & (0x80 >> 1)) {
				*(dst + 1) &=0x0f;
                                *(dst + 1) |=0x70;
                                *(dst + 2) = 0x77;
                        }
			else {
				*(dst + 1) &= 0x0f;
			        *(dst + 2) = 0x00;
                        }
			if (*(src + yi) & (0x80 >> 2)) {
				*(dst + 3) = 0x77;
                                *(dst + 4) &=0xf0;
                                *(dst + 4) |=0x07;
                        }
			else {
				*(dst + 3) = 0x00;
                                *(dst + 4) &=0xf0;
                        }
			if (*(src + yi) & (0x80 >> 3)) {
				*(dst + 4) &=0x0f;
                                *(dst + 4) |=0x70;
                                *(dst + 5) =0x77;
                        }
			else {
				*(dst + 4) &=0x0f;
			        *(dst + 5) = 0x00;
                        }
			if (*(src + yi) & (0x80 >> 4)) {
				*(dst + 6) = 0x77;
                                *(dst + 7) &=0xf0;
                                *(dst + 7) |=0x07;
                        }
			else {
				*(dst + 6) = 0x00;
                                *(dst + 7) &=0xf0;
                        }
			if (*(src + yi) & (0x80 >> 5)) {
				*(dst + 7) &= 0x0f;
                                *(dst + 7) |=0x70;
                                *(dst + 8) =0x77;
                        }
			else {
				*(dst + 7) &= 0x0f;
			        *(dst + 8) = 0x00;
                        }
			if (*(src + yi) & (0x80 >> 6)) {
				*(dst + 9) = 0x77;
                                *(dst + 10) &= 0xf0;
                                *(dst + 10) |= 0x07;
                        }
			else {
				*(dst + 9) = 0x00;
                                *(dst + 10) &=0xf0;
                        }
			if (*(src + yi) & (0x80 >> 7)) {
				*(dst + 10) &= 0x0f;
                                *(dst + 11) |= 0x70;
                                *(dst + 12) =0x77;
                        }
			else {
				*(dst + 10) &= 0x0f;
			        *(dst + 11) = 0x00;
                        } 
		}
		dst += 320 * 3 * 4 / 8;
	}
	return 0;
}

int
_lcd_chinese (void *fbuf,
	      short x0,
	      short y0,
	      short width, short height, unsigned char *pcc, int xorm)
{

	unsigned char *dst;
	unsigned char *src;

	int xi;
	dst = fbuf + y0 * 320 * 3 * 4 / 8 + x0 * 3 * 4 / 8;
	src = pcc;


	for (xi = 0; xi < 16; xi++)
	{
		if (*(src + xi * 2) & (0x80 >> 0)){
	               *(dst + 0) = 0x77;
                       *(dst + 1) &=0xf0;
                       *(dst + 1) |=0x07;
                }
		else {
			*(dst + 0) = 0x00;
                        *(dst + 1) &=0xf0;
                }
		if (*(src + xi * 2) & (0x80 >> 1)){
			*(dst + 1) &=0x0f;
                        *(dst + 1) |=0x70;
                        *(dst + 2) = 0x77;
                }
		else {
                	*(dst + 1) &= 0x0f;
		        *(dst + 2) = 0x00;
                }
		if (*(src + xi * 2) & (0x80 >> 2)){
			*(dst + 3) = 0x77;
                        *(dst + 4) &=0xf0;
                        *(dst + 4) |=0x07;
                }
		else {
	                *(dst + 3) = 0x00;
                        *(dst + 4) &=0xf0;
                }
	        if (*(src + xi * 2) & (0x80 >> 3)){
			*(dst + 4) &=0x0f;
                        *(dst + 4) |=0x70;
                        *(dst + 5) = 0x77;
                }
		else {
                	*(dst + 4) &= 0x0f;
		        *(dst + 5) = 0x00;
                }
		if (*(src + xi * 2) & (0x80 >> 4)){
         		*(dst + 6) = 0x77;
                        *(dst + 7) &=0xf0;
                        *(dst + 7) |=0x07;
                }
		else {
	                *(dst + 6) = 0x00;
                        *(dst + 7) &=0xf0;
                }
          		
		if (*(src + xi * 2) & (0x80 >> 5)){
			*(dst + 7) &=0x0f;
                        *(dst + 7) |=0x70;
                        *(dst + 8) = 0x77;
                }
		else {
                	*(dst + 7) &= 0x0f;
		        *(dst + 8) = 0x00;
                }
		if (*(src + xi * 2) & (0x80 >> 6)){
			*(dst + 9) = 0x77;
                        *(dst + 10) &=0xf0;
                        *(dst + 10) |=0x07;
                }
		else {
	                *(dst + 9) = 0x00;
                        *(dst + 10) &=0xf0;
                }
		if (*(src + xi * 2) & (0x80 >> 7)){
			*(dst + 10) &=0x0f;
                        *(dst + 10) |=0x70;
                        *(dst + 11) = 0x77;
                }
		else {
                	*(dst + 10) &= 0x0f;
		        *(dst + 11) = 0x00;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 0)){
			*(dst + 12) = 0x77;
                        *(dst + 13) &=0xf0;
                        *(dst + 13) |=0x07;
                }
		else {
	                *(dst + 12) = 0x00;
                        *(dst + 13) &=0xf0;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 1)){
			*(dst + 13) &=0x0f;
                        *(dst + 13) |=0x70;
                        *(dst + 14) = 0x77;
                }
		else {
                	*(dst + 13) &= 0x0f;
		        *(dst + 14) = 0x00;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 2)){
     			*(dst + 15) = 0x77;
                        *(dst + 16) &=0xf0;
                        *(dst + 16) |=0x07;
                }
		else {
	                *(dst + 15) = 0x00;
                        *(dst + 16) &=0xf0;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 3)){
			*(dst + 16) &=0x0f;
                        *(dst + 16) |=0x70;
                        *(dst + 17) = 0x77;
                }
		else {
                	*(dst + 16) &= 0x0f;
		        *(dst + 17) = 0x00;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 4)){
			*(dst + 18) = 0x77;
                        *(dst + 19) &=0xf0;
                        *(dst + 19) |=0x07;
                }
		else {
	                *(dst + 18) = 0x00;
                        *(dst + 19) &=0xf0;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 5)){
			*(dst + 19) &=0x0f;
                        *(dst + 19) |=0x70;
                        *(dst + 20) = 0x77;
                }
		else {
                	*(dst + 19) &= 0x0f;
		        *(dst + 20) = 0x00;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 6)){
			*(dst + 21) = 0x77;
                        *(dst + 22) &=0xf0;
                        *(dst + 22) |=0x07;
                }
		else {
	                *(dst + 21) = 0x00;
                        *(dst + 22) &=0xf0;
                }
		if (*(src + xi * 2 + 1) & (0x80 >> 7)){
         		*(dst + 22) &=0x0f;
                        *(dst + 22) |=0x70;
                        *(dst + 23) = 0x77;
                }
		else {
                	*(dst + 22) &= 0x0f;
		        *(dst + 23) = 0x00;
                }
		dst += 320 * 3 * 4 / 8;
	}
	return 0;
}