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Support meta surface patterns

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This commit is contained in:
Keith Packard 2006-02-27 20:05:57 -08:00
parent ad247974eb
commit 9ca67992a5
2 changed files with 36 additions and 14 deletions
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11
src/cairo-paginated-surface.c
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@ -155,6 +155,15 @@ _cairo_paginated_surface_get_target (cairo_surface_t *surface)
return paginated_surface->target;
}
static cairo_surface_t *
_cairo_paginated_surface_create_similar (void *other,
cairo_content_t content,
int width,
int height)
{
return _cairo_meta_surface_create (content, width, height);
}
static cairo_status_t
_cairo_paginated_surface_finish (void *abstract_surface)
{
@ -412,7 +421,7 @@ _cairo_paginated_surface_snapshot (void *abstract_other)
}
const cairo_surface_backend_t cairo_paginated_surface_backend = {
NULL, /* create_similar */
_cairo_paginated_surface_create_similar,
_cairo_paginated_surface_finish,
_cairo_paginated_surface_acquire_source_image,
_cairo_paginated_surface_release_source_image,

39
src/cairo-ps-surface.c
View file

@ -41,6 +41,7 @@
#include "cairo-ps.h"
#include "cairo-font-subset-private.h"
#include "cairo-paginated-surface-private.h"
#include "cairo-meta-surface-private.h"
#include "cairo-ft-private.h"
#include <time.h>
@ -620,9 +621,11 @@ operator_always_translucent (cairo_operator_t op)
static cairo_bool_t
pattern_surface_supported (const cairo_surface_pattern_t *pattern)
{
if (pattern->surface->backend->acquire_source_image == NULL)
return FALSE;
return TRUE;
if (_cairo_surface_is_meta (pattern->surface))
return TRUE;
if (pattern->surface->backend->acquire_source_image != NULL)
return TRUE;
return FALSE;
}
static cairo_bool_t
@ -823,20 +826,30 @@ static void
emit_surface_pattern (cairo_ps_surface_t *surface,
cairo_surface_pattern_t *pattern)
{
cairo_image_surface_t *image;
cairo_status_t status;
void *image_extra;
cairo_rectangle_t extents;
status = _cairo_surface_acquire_source_image (pattern->surface,
&image,
&image_extra);
assert (status == CAIRO_STATUS_SUCCESS);
emit_image (surface, image, &pattern->base.matrix, "MyPattern");
_cairo_surface_release_source_image (pattern->surface, image, image_extra);
if (_cairo_surface_is_meta (pattern->surface)) {
_cairo_output_stream_printf (surface->stream, "/MyPattern {\n");
_cairo_meta_surface_replay (pattern->surface, &surface->base);
extents.width = surface->width;
extents.height = surface->height;
_cairo_output_stream_printf (surface->stream, "} bind def\n");
} else {
cairo_image_surface_t *image;
void *image_extra;
cairo_status_t status;
status = _cairo_surface_acquire_source_image (pattern->surface,
&image,
&image_extra);
_cairo_surface_get_extents (&image->base, &extents);
assert (status == CAIRO_STATUS_SUCCESS);
emit_image (surface, image, &pattern->base.matrix, "MyPattern");
_cairo_surface_release_source_image (pattern->surface, image,
image_extra);
}
_cairo_output_stream_printf (surface->stream,
"<< /PatternType 1 /PaintType 1 /TilingType 1\n");
_cairo_surface_get_extents (&image->base, &extents);
_cairo_output_stream_printf (surface->stream,
"/BBox [0 0 %d %d]\n",
extents.width, extents.height);