Пример #1
0
static void
fz_draw_fill_image_mask(fz_context *ctx, void *user, fz_pixmap *image, fz_matrix ctm,
	fz_colorspace *colorspace, float *color, float alpha)
{
	fz_draw_device *dev = user;
	fz_colorspace *model = dev->dest->colorspace;
	unsigned char colorbv[FZ_MAX_COLORS + 1];
	float colorfv[FZ_MAX_COLORS];
	fz_pixmap *scaled = NULL;
	int dx, dy;
	int i;

	if (image->w == 0 || image->h == 0)
		return;

	if (dev->blendmode & FZ_BLEND_KNOCKOUT)
		fz_knockout_begin(ctx, dev);

	dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b);
	dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d);
	if (dx < image->w && dy < image->h)
	{
		int gridfit = alpha == 1.0f && !(dev->flags & FZ_DRAWDEV_FLAGS_TYPE3);
		scaled = fz_transform_pixmap(ctx, image, &ctm, dev->dest->x, dev->dest->y, dx, dy, gridfit);
		if (scaled == NULL)
		{
			if (dx < 1)
				dx = 1;
			if (dy < 1)
				dy = 1;
			scaled = fz_scale_pixmap(ctx, image, image->x, image->y, dx, dy);
		}
		if (scaled != NULL)
			image = scaled;
	}

	fz_convert_color(ctx, colorspace, color, model, colorfv);
	for (i = 0; i < model->n; i++)
		colorbv[i] = colorfv[i] * 255;
	colorbv[i] = alpha * 255;

	fz_paint_image_with_color(dev->dest, dev->scissor, dev->shape, image, ctm, colorbv);

	if (scaled)
		fz_drop_pixmap(ctx, scaled);

	if (dev->blendmode & FZ_BLEND_KNOCKOUT)
		fz_knockout_begin(ctx, dev);
}
Пример #2
0
static void
fz_draw_fill_image_mask(void *user, fz_pixmap *image, fz_matrix ctm,
	fz_colorspace *colorspace, float *color, float alpha)
{
	fz_draw_device *dev = user;
	fz_colorspace *model = dev->dest->colorspace;
	unsigned char colorbv[FZ_MAX_COLORS + 1];
	float colorfv[FZ_MAX_COLORS];
	fz_pixmap *scaled = NULL;
	int dx, dy;
	int i;

	if (image->w == 0 || image->h == 0)
		return;

	dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b);
	dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d);
	if (dx < image->w && dy < image->h)
	{
		scaled = fz_transform_pixmap(image, &ctm, dev->dest->x, dev->dest->y, dx, dy);
		if (scaled == NULL)
		{
			if (dx < 1)
				dx = 1;
			if (dy < 1)
				dy = 1;
			scaled = fz_scale_pixmap(image, image->x, image->y, dx, dy);
		}
		if (scaled != NULL)
			image = scaled;
	}

	fz_convert_color(colorspace, color, model, colorfv);
	for (i = 0; i < model->n; i++)
		colorbv[i] = colorfv[i] * 255;
	colorbv[i] = alpha * 255;

	fz_paint_image_with_color(dev->dest, dev->scissor, image, ctm, colorbv);

	if (scaled)
		fz_drop_pixmap(scaled);
}
Пример #3
0
static void
fz_draw_fill_image_mask(fz_device *devp, fz_image *image, fz_matrix ctm,
	fz_colorspace *colorspace, float *color, float alpha)
{
	fz_draw_device *dev = devp->user;
	unsigned char colorbv[FZ_MAX_COLORS + 1];
	float colorfv[FZ_MAX_COLORS];
	fz_pixmap *scaled = NULL;
	fz_pixmap *pixmap;
	fz_pixmap *orig_pixmap;
	int dx, dy;
	int i;
	fz_context *ctx = dev->ctx;
	fz_draw_state *state = &dev->stack[dev->top];
	fz_colorspace *model = state->dest->colorspace;
	fz_bbox clip = fz_pixmap_bbox(ctx, state->dest);

	clip = fz_intersect_bbox(clip, state->scissor);

	if (image->w == 0 || image->h == 0)
		return;

	dx = sqrtf(ctm.a * ctm.a + ctm.b * ctm.b);
	dy = sqrtf(ctm.c * ctm.c + ctm.d * ctm.d);
	pixmap = fz_image_to_pixmap(ctx, image, dx, dy);
	orig_pixmap = pixmap;

	fz_try(ctx)
	{
		if (state->blendmode & FZ_BLEND_KNOCKOUT)
			state = fz_knockout_begin(dev);

		if (dx < pixmap->w && dy < pixmap->h)
		{
			int gridfit = alpha == 1.0f && !(dev->flags & FZ_DRAWDEV_FLAGS_TYPE3);
			scaled = fz_transform_pixmap(dev->ctx, pixmap, &ctm, state->dest->x, state->dest->y, dx, dy, gridfit, &clip);
			if (!scaled)
			{
				if (dx < 1)
					dx = 1;
				if (dy < 1)
					dy = 1;
				scaled = fz_scale_pixmap(dev->ctx, pixmap, pixmap->x, pixmap->y, dx, dy, NULL);
			}
			if (scaled)
				pixmap = scaled;
		}

		fz_convert_color(dev->ctx, model, colorfv, colorspace, color);
		for (i = 0; i < model->n; i++)
			colorbv[i] = colorfv[i] * 255;
		colorbv[i] = alpha * 255;

		fz_paint_image_with_color(state->dest, state->scissor, state->shape, pixmap, ctm, colorbv);

		if (scaled)
			fz_drop_pixmap(dev->ctx, scaled);

		if (state->blendmode & FZ_BLEND_KNOCKOUT)
			fz_knockout_end(dev);
	}
	fz_always(ctx)
	{
		fz_drop_pixmap(dev->ctx, orig_pixmap);
	}
	fz_catch(ctx)
	{
		fz_rethrow(ctx);
	}
}