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pdf: use ink extents in content stream XObjects

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This commit is contained in:
Adrian Johnson 2011-09-04 22:39:57 +09:30
parent d1f146b54f
commit 42fecf37dc
1 changed files with 36 additions and 31 deletions
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67
src/cairo-pdf-surface.c
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@ -1622,9 +1622,10 @@ _cairo_pdf_surface_close_group (cairo_pdf_surface_t *surface,
}
static cairo_status_t
_cairo_pdf_surface_open_content_stream (cairo_pdf_surface_t *surface,
cairo_pdf_resource_t *resource,
cairo_bool_t is_form)
_cairo_pdf_surface_open_content_stream (cairo_pdf_surface_t *surface,
const cairo_box_double_t *bbox,
cairo_pdf_resource_t *resource,
cairo_bool_t is_form)
{
cairo_status_t status;
@ -1636,21 +1637,25 @@ _cairo_pdf_surface_open_content_stream (cairo_pdf_surface_t *surface,
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
if (is_form) {
assert (bbox != NULL);
status =
_cairo_pdf_surface_open_stream (surface,
resource,
surface->compress_content,
" /Type /XObject\n"
" /Subtype /Form\n"
" /BBox [ 0 0 %f %f ]\n"
" /BBox [ %f %f %f %f ]\n"
" /Group <<\n"
" /Type /Group\n"
" /S /Transparency\n"
" /CS /DeviceRGB\n"
" >>\n"
" /Resources %d 0 R\n",
surface->width,
surface->height,
bbox->p1.x,
bbox->p1.y,
bbox->p2.x,
bbox->p2.y,
surface->content_resources.id);
} else {
status =
@ -1845,9 +1850,14 @@ _cairo_pdf_surface_has_fallback_images (void *abstract_surface,
{
cairo_status_t status;
cairo_pdf_surface_t *surface = abstract_surface;
cairo_box_double_t bbox;
surface->has_fallback_images = has_fallbacks;
status = _cairo_pdf_surface_open_content_stream (surface, NULL, has_fallbacks);
bbox.p1.x = 0;
bbox.p1.y = 0;
bbox.p2.x = surface->width;
bbox.p2.y = surface->height;
status = _cairo_pdf_surface_open_content_stream (surface, &bbox, NULL, has_fallbacks);
if (unlikely (status))
return status;
@ -2409,32 +2419,20 @@ BAIL:
static cairo_status_t
_cairo_pdf_surface_emit_recording_surface (cairo_pdf_surface_t *surface,
cairo_surface_t *source,
cairo_pdf_resource_t resource)
_cairo_pdf_surface_emit_recording_surface (cairo_pdf_surface_t *surface,
cairo_pdf_source_surface_t *pdf_source)
{
double old_width, old_height;
cairo_paginated_mode_t old_paginated_mode;
cairo_surface_clipper_t old_clipper;
cairo_rectangle_int_t recording_extents;
cairo_box_double_t bbox;
cairo_int_status_t status;
int alpha = 0;
cairo_surface_t *source = pdf_source->surface;
if (_cairo_surface_is_snapshot (source))
source = _cairo_surface_snapshot_get_target (source);
if (! _cairo_surface_get_extents (source, &recording_extents)) {
cairo_box_t bbox;
status =
_cairo_recording_surface_get_bbox ((cairo_recording_surface_t *) source,
&bbox, NULL);
if (unlikely (status))
return status;
_cairo_box_round_to_rectangle (&bbox, &recording_extents);
}
old_width = surface->width;
old_height = surface->height;
old_paginated_mode = surface->paginated_mode;
@ -2443,15 +2441,16 @@ _cairo_pdf_surface_emit_recording_surface (cairo_pdf_surface_t *surface,
_cairo_pdf_surface_clipper_intersect_clip_path);
_cairo_pdf_surface_set_size_internal (surface,
recording_extents.width,
recording_extents.height);
pdf_source->hash_entry->width,
pdf_source->hash_entry->height);
/* Patterns are emitted after fallback images. The paginated mode
* needs to be set to _RENDER while the recording surface is replayed
* back to this surface.
*/
surface->paginated_mode = CAIRO_PAGINATED_MODE_RENDER;
_cairo_pdf_group_resources_clear (&surface->resources);
status = _cairo_pdf_surface_open_content_stream (surface, &resource, TRUE);
_get_bbox_from_extents (pdf_source->hash_entry->height, &pdf_source->hash_entry->extents, &bbox);
status = _cairo_pdf_surface_open_content_stream (surface, &bbox, &pdf_source->hash_entry->surface_res, TRUE);
if (unlikely (status))
return status;
@ -2496,6 +2495,7 @@ _cairo_pdf_surface_emit_recording_subsurface (cairo_pdf_surface_t *surface,
double old_width, old_height;
cairo_paginated_mode_t old_paginated_mode;
cairo_surface_clipper_t old_clipper;
cairo_box_double_t bbox;
cairo_int_status_t status;
int alpha = 0;
@ -2515,7 +2515,8 @@ _cairo_pdf_surface_emit_recording_subsurface (cairo_pdf_surface_t *surface,
*/
surface->paginated_mode = CAIRO_PAGINATED_MODE_RENDER;
_cairo_pdf_group_resources_clear (&surface->resources);
status = _cairo_pdf_surface_open_content_stream (surface, &resource, TRUE);
_get_bbox_from_extents (extents->height, extents, &bbox);
status = _cairo_pdf_surface_open_content_stream (surface, &bbox, &resource, TRUE);
if (unlikely (status))
return status;
@ -2564,8 +2565,7 @@ _cairo_pdf_surface_emit_surface (cairo_pdf_surface_t *surface,
src_surface->hash_entry->surface_res);
} else {
return _cairo_pdf_surface_emit_recording_surface (surface,
src_surface->surface,
src_surface->hash_entry->surface_res);
src_surface);
}
} else {
return _cairo_pdf_surface_emit_image_surface (surface,
@ -5555,7 +5555,7 @@ _cairo_pdf_surface_write_page (cairo_pdf_surface_t *surface)
return status;
_cairo_pdf_group_resources_clear (&surface->resources);
status = _cairo_pdf_surface_open_content_stream (surface, NULL, FALSE);
status = _cairo_pdf_surface_open_content_stream (surface, NULL, NULL, FALSE);
if (unlikely (status))
return status;
@ -5808,6 +5808,7 @@ _cairo_pdf_surface_operation_supported (cairo_pdf_surface_t *surface,
static cairo_int_status_t
_cairo_pdf_surface_start_fallback (cairo_pdf_surface_t *surface)
{
cairo_box_double_t bbox;
cairo_status_t status;
status = _cairo_pdf_surface_close_content_stream (surface);
@ -5819,7 +5820,11 @@ _cairo_pdf_surface_start_fallback (cairo_pdf_surface_t *surface)
return status;
_cairo_pdf_group_resources_clear (&surface->resources);
return _cairo_pdf_surface_open_content_stream (surface, NULL, TRUE);
bbox.p1.x = 0;
bbox.p1.y = 0;
bbox.p2.x = surface->width;
bbox.p2.y = surface->height;
return _cairo_pdf_surface_open_content_stream (surface, &bbox, NULL, TRUE);
}
/* A PDF stencil mask is an A1 mask used with the current color */