static int
fz_test_begin_tile(fz_context *ctx, fz_device *dev_, fz_rect area, fz_rect view, float xstep, float ystep, fz_matrix ctm, int id)
{
fz_test_device *dev = (fz_test_device*)dev_;
if (dev->passthrough)
return fz_begin_tile_id(ctx, dev->passthrough, area, view, xstep, ystep, ctm, id);
else
return 0;
}
void
fz_begin_tile(fz_device *dev, const fz_rect *area, const fz_rect *view, float xstep, float ystep, const fz_matrix *ctm)
{
(void)fz_begin_tile_id(dev, area, view, xstep, ystep, ctm, 0);
}
void
fz_run_display_list(fz_display_list *list, fz_device *dev, const fz_matrix *top_ctm, const fz_rect *scissor, fz_cookie *cookie)
{
fz_display_node *node;
fz_matrix ctm;
int clipped = 0;
int tiled = 0;
int progress = 0;
fz_context *ctx = dev->ctx;
if (!scissor)
scissor = &fz_infinite_rect;
if (cookie)
{
cookie->progress_max = list->len;
cookie->progress = 0;
}
for (node = list->first; node; node = node->next)
{
int empty;
fz_rect node_rect = node->rect;
fz_transform_rect(&node_rect, top_ctm);
/* Check the cookie for aborting */
if (cookie)
{
if (cookie->abort)
break;
cookie->progress = progress++;
}
/* cull objects to draw using a quick visibility test */
if (tiled ||
node->cmd == FZ_CMD_BEGIN_TILE || node->cmd == FZ_CMD_END_TILE ||
node->cmd == FZ_CMD_BEGIN_PAGE || node->cmd == FZ_CMD_END_PAGE)
{
empty = 0;
}
else
{
fz_rect rect = node_rect;
fz_intersect_rect(&rect, scissor);
empty = fz_is_empty_rect(&rect);
}
if (clipped || empty)
{
switch (node->cmd)
{
case FZ_CMD_CLIP_PATH:
case FZ_CMD_CLIP_STROKE_PATH:
case FZ_CMD_CLIP_STROKE_TEXT:
case FZ_CMD_CLIP_IMAGE_MASK:
case FZ_CMD_BEGIN_MASK:
case FZ_CMD_BEGIN_GROUP:
clipped++;
continue;
case FZ_CMD_CLIP_TEXT:
/* Accumulated text has no extra pops */
if (node->flag != 2)
clipped++;
continue;
case FZ_CMD_POP_CLIP:
case FZ_CMD_END_GROUP:
if (!clipped)
goto visible;
clipped--;
continue;
case FZ_CMD_END_MASK:
if (!clipped)
goto visible;
continue;
default:
continue;
}
}
visible:
fz_concat(&ctm, &node->ctm, top_ctm);
fz_try(ctx)
{
switch (node->cmd)
{
case FZ_CMD_BEGIN_PAGE:
fz_begin_page(dev, &node_rect, &ctm);
break;
case FZ_CMD_END_PAGE:
fz_end_page(dev);
break;
case FZ_CMD_FILL_PATH:
fz_fill_path(dev, node->item.path, node->flag, &ctm,
node->colorspace, node->color, node->alpha);
break;
case FZ_CMD_STROKE_PATH:
fz_stroke_path(dev, node->item.path, node->stroke, &ctm,
node->colorspace, node->color, node->alpha);
break;
case FZ_CMD_CLIP_PATH:
fz_clip_path(dev, node->item.path, &node_rect, node->flag, &ctm);
break;
case FZ_CMD_CLIP_STROKE_PATH:
fz_clip_stroke_path(dev, node->item.path, &node_rect, node->stroke, &ctm);
break;
case FZ_CMD_FILL_TEXT:
fz_fill_text(dev, node->item.text, &ctm,
node->colorspace, node->color, node->alpha);
break;
case FZ_CMD_STROKE_TEXT:
fz_stroke_text(dev, node->item.text, node->stroke, &ctm,
node->colorspace, node->color, node->alpha);
break;
case FZ_CMD_CLIP_TEXT:
fz_clip_text(dev, node->item.text, &ctm, node->flag);
break;
case FZ_CMD_CLIP_STROKE_TEXT:
fz_clip_stroke_text(dev, node->item.text, node->stroke, &ctm);
break;
case FZ_CMD_IGNORE_TEXT:
fz_ignore_text(dev, node->item.text, &ctm);
break;
case FZ_CMD_FILL_SHADE:
if ((dev->hints & FZ_IGNORE_SHADE) == 0)
fz_fill_shade(dev, node->item.shade, &ctm, node->alpha);
break;
case FZ_CMD_FILL_IMAGE:
if ((dev->hints & FZ_IGNORE_IMAGE) == 0)
fz_fill_image(dev, node->item.image, &ctm, node->alpha);
break;
case FZ_CMD_FILL_IMAGE_MASK:
if ((dev->hints & FZ_IGNORE_IMAGE) == 0)
fz_fill_image_mask(dev, node->item.image, &ctm,
node->colorspace, node->color, node->alpha);
break;
case FZ_CMD_CLIP_IMAGE_MASK:
if ((dev->hints & FZ_IGNORE_IMAGE) == 0)
fz_clip_image_mask(dev, node->item.image, &node_rect, &ctm);
break;
case FZ_CMD_POP_CLIP:
fz_pop_clip(dev);
break;
case FZ_CMD_BEGIN_MASK:
fz_begin_mask(dev, &node_rect, node->flag, node->colorspace, node->color);
break;
case FZ_CMD_END_MASK:
fz_end_mask(dev);
break;
case FZ_CMD_BEGIN_GROUP:
fz_begin_group(dev, &node_rect,
(node->flag & ISOLATED) != 0, (node->flag & KNOCKOUT) != 0,
node->item.blendmode, node->alpha);
break;
case FZ_CMD_END_GROUP:
fz_end_group(dev);
break;
case FZ_CMD_BEGIN_TILE:
{
int cached;
fz_rect tile_rect;
tiled++;
tile_rect.x0 = node->color[2];
tile_rect.y0 = node->color[3];
tile_rect.x1 = node->color[4];
tile_rect.y1 = node->color[5];
cached = fz_begin_tile_id(dev, &node->rect, &tile_rect, node->color[0], node->color[1], &ctm, node->flag);
if (cached)
node = skip_to_end_tile(node, &progress);
break;
}
case FZ_CMD_END_TILE:
tiled--;
fz_end_tile(dev);
break;
/* SumatraPDF: support transfer functions */
case FZ_CMD_APPLY_TRANSFER_FUNCTION:
fz_apply_transfer_function(dev, node->item.tr, node->flag);
break;
}
}
fz_catch(ctx)
{
/* Swallow the error */
if (cookie)
cookie->errors++;
fz_warn(ctx, "Ignoring error during interpretation");
}
}
}