static void
fz_bbox_fill_shade(fz_device *dev, fz_shade *shade, const fz_matrix *ctm, float alpha)
{
fz_rect *result = dev->user;
fz_rect r;
fz_union_rect(result, fz_bound_shade(dev->ctx, shade, ctm, &r));
}
static void
fz_bbox_fill_shade(fz_device *dev, fz_shade *shade, fz_matrix ctm, float alpha)
{
fz_bbox *result = dev->user;
fz_bbox bbox = fz_round_rect(fz_bound_shade(shade, ctm));
*result = fz_union_bbox(*result, bbox);
}
static void
fz_list_fill_shade(void *user, fz_shade *shade, fz_matrix ctm, float alpha)
{
fz_display_node *node;
node = fz_new_display_node(FZ_CMD_FILL_SHADE, ctm, NULL, NULL, alpha);
node->rect = fz_bound_shade(shade, ctm);
node->item.shade = fz_keep_shade(shade);
fz_append_display_node(user, node);
}
static void
fz_list_fill_shade(fz_device *dev, fz_shade *shade, const fz_matrix *ctm, float alpha)
{
fz_display_node *node;
fz_context *ctx = dev->ctx;
node = fz_new_display_node(ctx, FZ_CMD_FILL_SHADE, ctm, NULL, NULL, alpha);
fz_bound_shade(ctx, shade, ctm, &node->rect);
node->item.shade = fz_keep_shade(ctx, shade);
fz_append_display_node(dev->user, node);
}
static void
svg_dev_fill_shade(fz_context *ctx, fz_device *dev, fz_shade *shade, const fz_matrix *ctm, float alpha)
{
svg_device *sdev = (svg_device*)dev;
fz_output *out = sdev->out;
fz_rect rect;
fz_irect bbox;
fz_pixmap *pix;
fz_buffer *buf = NULL;
fz_var(buf);
if (dev->container_len == 0)
return;
fz_round_rect(&bbox, fz_intersect_rect(fz_bound_shade(ctx, shade, ctm, &rect), &dev->container[dev->container_len-1].scissor));
if (fz_is_empty_irect(&bbox))
return;
pix = fz_new_pixmap_with_bbox(ctx, fz_device_rgb(ctx), &bbox);
fz_clear_pixmap(ctx, pix);
fz_try(ctx)
{
fz_paint_shade(ctx, shade, ctm, pix, &bbox);
buf = fz_new_buffer_from_pixmap_as_png(ctx, pix);
if (alpha != 1.0f)
fz_printf(ctx, out, "<g opacity=\"%g\">", alpha);
fz_printf(ctx, out, "<image x=\"%dpx\" y=\"%dpx\" width=\"%dpx\" height=\"%dpx\" xlink:href=\"data:image/png;base64,", pix->x, pix->y, pix->w, pix->h);
send_data_base64(ctx, out, buf);
fz_printf(ctx, out, "\"/>\n");
if (alpha != 1.0f)
fz_printf(ctx, out, "</g>");
}
fz_always(ctx)
{
fz_drop_buffer(ctx, buf);
fz_drop_pixmap(ctx, pix);
}
fz_catch(ctx)
{
fz_rethrow(ctx);
}
}
static void
fz_draw_fill_shade(fz_context *ctx, void *user, fz_shade *shade, fz_matrix ctm, float alpha)
{
fz_draw_device *dev = user;
fz_colorspace *model = dev->dest->colorspace;
fz_pixmap *dest = dev->dest;
fz_rect bounds;
fz_bbox bbox, scissor;
float colorfv[FZ_MAX_COLORS];
unsigned char colorbv[FZ_MAX_COLORS + 1];
bounds = fz_bound_shade(shade, ctm);
bbox = fz_intersect_bbox(fz_round_rect(bounds), dev->scissor);
scissor = dev->scissor;
// TODO: proper clip by shade->bbox
if (fz_is_empty_rect(bbox))
return;
if (!model)
{
fz_warn(ctx, "cannot render shading directly to an alpha mask");
return;
}
if (alpha < 1)
{
dest = fz_new_pixmap_with_rect(ctx, dev->dest->colorspace, bbox);
fz_clear_pixmap(dest);
}
if (dev->blendmode & FZ_BLEND_KNOCKOUT)
fz_knockout_begin(ctx, dev);
if (shade->use_background)
{
unsigned char *s;
int x, y, n, i;
fz_convert_color(ctx, shade->colorspace, shade->background, model, colorfv);
for (i = 0; i < model->n; i++)
colorbv[i] = colorfv[i] * 255;
colorbv[i] = 255;
n = dest->n;
for (y = scissor.y0; y < scissor.y1; y++)
{
s = dest->samples + ((scissor.x0 - dest->x) + (y - dest->y) * dest->w) * dest->n;
for (x = scissor.x0; x < scissor.x1; x++)
{
for (i = 0; i < n; i++)
*s++ = colorbv[i];
}
}
if (dev->shape)
{
for (y = scissor.y0; y < scissor.y1; y++)
{
s = dev->shape->samples + (scissor.x0 - dev->shape->x) + (y - dev->shape->y) * dev->shape->w;
for (x = scissor.x0; x < scissor.x1; x++)
{
*s++ = 255;
}
}
}
}
fz_paint_shade(ctx, shade, ctm, dest, bbox);
if (dev->shape)
fz_clear_pixmap_rect_with_color(dev->shape, 255, bbox);
if (alpha < 1)
{
fz_paint_pixmap(dev->dest, dest, alpha * 255);
fz_drop_pixmap(ctx, dest);
}
if (dev->blendmode & FZ_BLEND_KNOCKOUT)
fz_knockout_end(ctx, dev);
}
static void
fz_bbox_fill_shade(fz_device *dev, fz_shade *shade, fz_matrix ctm, float alpha)
{
fz_bbox_add_rect(dev, fz_bound_shade(dev->ctx, shade, ctm), 0);
}
static void
fz_bbox_fill_shade(fz_context *ctx, fz_device *dev, fz_shade *shade, const fz_matrix *ctm, float alpha)
{
fz_rect r;
fz_bbox_add_rect(ctx, dev, fz_bound_shade(ctx, shade, ctm, &r), 0);
}
static void
fz_draw_fill_shade(fz_device *devp, fz_shade *shade, fz_matrix ctm, float alpha)
{
fz_draw_device *dev = devp->user;
fz_rect bounds;
fz_bbox bbox, scissor;
fz_pixmap *dest, *shape;
float colorfv[FZ_MAX_COLORS];
unsigned char colorbv[FZ_MAX_COLORS + 1];
fz_draw_state *state = &dev->stack[dev->top];
fz_colorspace *model = state->dest->colorspace;
bounds = fz_bound_shade(dev->ctx, shade, ctm);
scissor = state->scissor;
bbox = fz_intersect_bbox(fz_bbox_covering_rect(bounds), scissor);
if (fz_is_empty_rect(bbox))
return;
if (!model)
{
fz_warn(dev->ctx, "cannot render shading directly to an alpha mask");
return;
}
if (state->blendmode & FZ_BLEND_KNOCKOUT)
state = fz_knockout_begin(dev);
dest = state->dest;
shape = state->shape;
if (alpha < 1)
{
dest = fz_new_pixmap_with_bbox(dev->ctx, state->dest->colorspace, bbox);
fz_clear_pixmap(dev->ctx, dest);
if (shape)
{
shape = fz_new_pixmap_with_bbox(dev->ctx, NULL, bbox);
fz_clear_pixmap(dev->ctx, shape);
}
}
if (shade->use_background)
{
unsigned char *s;
int x, y, n, i;
fz_convert_color(dev->ctx, model, colorfv, shade->colorspace, shade->background);
for (i = 0; i < model->n; i++)
colorbv[i] = colorfv[i] * 255;
colorbv[i] = 255;
n = dest->n;
for (y = scissor.y0; y < scissor.y1; y++)
{
s = dest->samples + (unsigned int)(((scissor.x0 - dest->x) + (y - dest->y) * dest->w) * dest->n);
for (x = scissor.x0; x < scissor.x1; x++)
{
for (i = 0; i < n; i++)
*s++ = colorbv[i];
}
}
if (shape)
{
for (y = scissor.y0; y < scissor.y1; y++)
{
s = shape->samples + (unsigned int)((scissor.x0 - shape->x) + (y - shape->y) * shape->w);
for (x = scissor.x0; x < scissor.x1; x++)
{
*s++ = 255;
}
}
}
}
fz_paint_shade(dev->ctx, shade, ctm, dest, bbox);
if (shape)
fz_clear_pixmap_rect_with_value(dev->ctx, shape, 255, bbox);
if (alpha < 1)
{
fz_paint_pixmap(state->dest, dest, alpha * 255);
fz_drop_pixmap(dev->ctx, dest);
if (shape)
{
fz_paint_pixmap(state->shape, shape, alpha * 255);
fz_drop_pixmap(dev->ctx, shape);
}
}
if (state->blendmode & FZ_BLEND_KNOCKOUT)
fz_knockout_end(dev);
}
