Beispiel #1
0
FBCALL void fb_GfxDraw(void *target, FBSTRING *command)
{
	FB_GFXCTX *context;
	float x, y, dx, dy, ax, ay, x2, y2;
	int angle = 0, diagonal = FALSE;
	char *c;
	intptr_t value1, value2;
	int draw = TRUE, move = TRUE, length = 0, flags, rel;

	FB_GRAPHICS_LOCK( );

	if ((!__fb_gfx) || (!command) || (!command->data)) {
		if (command)
			fb_hStrDelTemp(command);
		FB_GRAPHICS_UNLOCK( );
		return;
	}

	context = fb_hGetContext( );
	fb_hPrepareTarget(context, target);
	fb_hSetPixelTransfer(context, MASK_A_32);

	x = context->last_x;
	y = context->last_y;

	DRIVER_LOCK();

	flags = context->flags;
	context->flags |= CTX_VIEW_SCREEN;

	for (c = command->data; *c;) {
		switch (toupper(*c)) {
			case 'B':
				c++;
				draw = FALSE;
				break;

			case 'N':
				c++;
				move = FALSE;
				break;

			case 'C':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				context->fg_color = fb_hFixColor(context->target_bpp, value1);
				break;

			case 'S':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				base_scale = (float)value1 / 4.0;
				break;

			case 'A':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				base_angle = (value1 & 0x3) * 90;
				break;

			case 'T':
				c++;
				if (toupper(*c) != 'A')
					goto error;
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				base_angle = mod360( value1 );
				break;

			case 'X':
				c++;
				/* Here we could be more severe with checking, but it's unlikely our substring
				 * resides at location FB_NAN (0x80000000) */
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;

				/* Store our current x/y for the recursive fb_GfxDraw() call */
				context->last_x = x;
				context->last_y = y;

				DRIVER_UNLOCK();
				fb_GfxDraw(target, (FBSTRING *)value1);
				DRIVER_LOCK();

				/* And update to x/y produced by the recursive fb_GfxDraw() call */
				x = context->last_x;
				y = context->last_y;

				break;

			case 'P':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				value2 = value1;
				if (*c == ',') {
					c++;
					if ((value2 = parse_number(&c)) == FB_NAN)
						goto error;
				}
				DRIVER_UNLOCK();
				fb_GfxPaint(target, x, y, value1 & __fb_gfx->color_mask, value2 & __fb_gfx->color_mask, NULL, PAINT_TYPE_FILL, COORD_TYPE_A);
				DRIVER_LOCK();
				break;

			case 'M':
				c++;
				while ((*c == ' ') || (*c == '\t'))
					c++;
				rel = ((*c == '+') || (*c == '-'));
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				if (*c++ != ',')
					goto error;
				if ((value2 = parse_number(&c)) == FB_NAN)
					goto error;
				x2 = (float)value1;
				y2 = (float)value2;
				if (rel) {
					ax = dcos(base_angle);
					ay = -dsin(base_angle);
					dx = x2;
					dy = y2;
					x2 = (((dx * ax) - (dy * ay)) * base_scale) + x;
					y2 = (((dy * ax) + (dx * ay)) * base_scale) + y;
				}
				if (draw) {
					DRIVER_UNLOCK();
					fb_GfxLine(target, (int)x, (int)y, (int)x2, (int)y2, 0, LINE_TYPE_LINE, 0xFFFF, COORD_TYPE_AA | DEFAULT_COLOR_1);
					DRIVER_LOCK();
				}
				if (move) {
					x = x2;
					y = y2;
				}
				move = draw = TRUE;
				break;

			case 'F': case 'D': angle += 90;
			case 'G': case 'L': angle += 90;
			case 'H': case 'U': angle += 90;
			case 'E': case 'R':
				diagonal = ((toupper(*c) >= 'E') && (toupper(*c) <= 'H'));
				c++;
				if ((value1 = parse_number(&c)) != FB_NAN)
					length = value1;
				else
					length = 1;

				angle = mod360( angle + base_angle );
				dx = (float)length * base_scale * dcos( angle );
				dy = (float)length * base_scale * -dsin( angle );

				if (diagonal) {
					x2 = x + (dx + dy);
					y2 = y + (dy - dx);
				}
				else {
					x2 = x + dx;
					y2 = y + dy;
				}
				if (draw) {
					fb_GfxDrawLine( context, CINT(x), CINT(y), CINT(x2), CINT(y2), context->fg_color, 0xffff );
				}
				if (move) {
					x = x2;
					y = y2;
				}

				angle = 0;
				move = draw = TRUE;
				break;

			default:
				c++;
				break;
		}
	}

	context->last_x = x;
	context->last_y = y;

error:
	context->flags = flags;

	DRIVER_UNLOCK();

	/* del if temp */
	fb_hStrDelTemp( command );

	FB_GRAPHICS_UNLOCK( );
}
Beispiel #2
0
FBCALL void fb_GfxDraw(void *target, FBSTRING *command)
{
	FB_GFXCTX *context;
	float x, y, dx, dy, ax, ay, x2, y2, scale = 1.0, angle = 0.0;
	char *c;
	intptr_t value1, value2;
	int draw = TRUE, move = TRUE, length = 0, flags, rel, ix, iy;

	FB_GRAPHICS_LOCK( );

	if ((!__fb_gfx) || (!command) || (!command->data)) {
		if (command)
			fb_hStrDelTemp(command);
		FB_GRAPHICS_UNLOCK( );
		return;
	}

	context = fb_hGetContext( );
	fb_hPrepareTarget(context, target);
	fb_hSetPixelTransfer(context, MASK_A_32);

	x = context->last_x;
	y = context->last_y;

	DRIVER_LOCK();

	flags = context->flags;
	context->flags |= CTX_VIEW_SCREEN;

	for (c = command->data; *c;) {
		switch (toupper(*c)) {
			case 'B':
				c++;
				draw = FALSE;
				break;

			case 'N':
				c++;
				move = FALSE;
				break;

			case 'C':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				context->fg_color = fb_hFixColor(context->target_bpp, value1);
				break;

			case 'S':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				base_scale = (float)value1 / 4.0;
				break;

			case 'A':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				base_angle = (float)(value1 & 0x3) * PI * 0.5;
				break;

			case 'T':
				c++;
				if (toupper(*c) != 'A')
					goto error;
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				base_angle = (float)value1 * PI / 180.0;
				break;

			case 'X':
				c++;
				/* Here we could be more severe with checking, but it's unlikely our substring
				 * resides at location FB_NAN (0x80000000) */
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;

				/* Store our current x/y for the recursive fb_GfxDraw() call */
				context->last_x = x;
				context->last_y = y;

				DRIVER_UNLOCK();
				fb_GfxDraw(target, (FBSTRING *)value1);
				DRIVER_LOCK();

				/* And update to x/y produced by the recursive fb_GfxDraw() call */
				x = context->last_x;
				y = context->last_y;

				break;

			case 'P':
				c++;
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				value2 = value1;
				if (*c == ',') {
					c++;
					if ((value2 = parse_number(&c)) == FB_NAN)
						goto error;
				}
				DRIVER_UNLOCK();
				fb_GfxPaint(target, x, y, value1 & __fb_gfx->color_mask, value2 & __fb_gfx->color_mask, NULL, PAINT_TYPE_FILL, COORD_TYPE_A);
				DRIVER_LOCK();
				break;

			case 'M':
				c++;
				rel = FALSE;
				while ((*c == ' ') || (*c == '\t'))
					c++;
				if ((*c == '+') || (*c == '-'))
				{
					rel = TRUE;
				}
				if ((value1 = parse_number(&c)) == FB_NAN)
					goto error;
				if (*c++ != ',')
					goto error;
				if ((value2 = parse_number(&c)) == FB_NAN)
					goto error;
				x2 = (float)value1;
				y2 = (float)value2;
				if (rel) {
					ax = cos(base_angle);
					ay = -sin(base_angle);
					dx = x2;
					dy = y2;
					x2 = (((dx * ax) - (dy * ay)) * base_scale) + x;
					y2 = (((dy * ax) + (dx * ay)) * base_scale) + y;
				}
				else {
					x2 += 0.5;
					y2 += 0.5;
				}
				if (draw) {
					DRIVER_UNLOCK();
					fb_GfxLine(target, (int)x, (int)y, (int)x2, (int)y2, 0, LINE_TYPE_LINE, 0xFFFF, COORD_TYPE_AA | DEFAULT_COLOR_1);
					DRIVER_LOCK();
				}
				if (move) {
					x = x2;
					y = y2;
				}
				move = draw = TRUE;
				break;

			case 'F': angle += PI * 0.25;
			case 'D': angle += PI * 0.25;
			case 'G': angle += PI * 0.25;
			case 'L': angle += PI * 0.25;
			case 'H': angle += PI * 0.25;
			case 'U': angle += PI * 0.25;
			case 'E': angle += PI * 0.25;
			case 'R':
				if ((toupper(*c) >= 'E') && (toupper(*c) <= 'H'))
					scale = SQRT_2;
				c++;
				if ((value1 = parse_number(&c)) != FB_NAN)
					length = value1;
				else
					length = 1;
				break;

			default:
				c++;
				break;
		}

		if (length) {
			length = (int)(((float)length * (base_scale * scale)) + 0.5);
			if (length < 0) {
				angle += PI;
				length = -length;
			}
			angle += base_angle;
			dx = x;
			dy = y;

			for (; length >= 0; length--) {
				if (draw) {
					ix = dx;
					iy = dy;
					if ((ix >= context->view_x) && (ix < context->view_x + context->view_w) &&
					    (iy >= context->view_y) && (iy < context->view_y + context->view_h)) {
					    	context->put_pixel(context, ix, iy, context->fg_color);
						if (__fb_gfx->framebuffer == context->line[0])
							__fb_gfx->dirty[iy] = TRUE;
					}
				}
				if (length) {
					dx += cos(angle);
					dy -= sin(angle);
				}
			}
			if (move) {
				x = dx;
				y = dy;
			}
			angle = 0.0;
			scale = 1.0;
			length = 0;
			move = draw = TRUE;
		}
	}

	context->last_x = x;
	context->last_y = y;

error:
	context->flags = flags;

	DRIVER_UNLOCK();

	/* del if temp */
	fb_hStrDelTemp( command );

	FB_GRAPHICS_UNLOCK( );
}