35 void Blitter_32bppBase::DrawLine(void *video, int x, int y, int x2, int y2, int screen_width, int screen_height, uint8 color)

    36 {

    37 	int dy;

    38 	int dx;

    39 	int stepx;

    40 	int stepy;

    41 	int frac;

    42 

    43 	dy = (y2 - y) * 2;

    44 	if (dy < 0) {

    45 		dy = -dy;

    46 		stepy = -1;

    47 	} else {

    48 		stepy = 1;

    49 	}

    50 

    51 	dx = (x2 - x) * 2;

    52 	if (dx < 0) {

    53 		dx = -dx;

    54 		stepx = -1;

    55 	} else {

    56 		stepx = 1;

    57 	}

    58 

    59 	this->SetPixel(video, x, y, color);

    60 	if (dx > dy) {

    61 		frac = dy - (dx / 2);

    62 		while (x != x2) {

    63 			if (frac >= 0) {

    64 				y += stepy;

    65 				frac -= dx;

    66 			}

    67 			x += stepx;

    68 			frac += dy;

    69 			if (x > 0 && y > 0 && x < screen_width && y < screen_height) this->SetPixel(video, x, y, color);

    70 		}

    71 	} else {

    72 		frac = dx - (dy / 2);

    73 		while (y != y2) {

    74 			if (frac >= 0) {

    75 				x += stepx;

    76 				frac -= dy;

    77 			}

    78 			y += stepy;

    79 			frac += dx;

    80 			if (x > 0 && y > 0 && x < screen_width && y < screen_height) this->SetPixel(video, x, y, color);

    81 		}

    82 	}

    83 }