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cairo-recording-surface.c
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/* -*- Mode: c; tab-width: 8; c-basic-offset: 4; indent-tabs-mode: t; -*- */
/* cairo - a vector graphics library with display and print output
*
* Copyright © 2005 Red Hat, Inc
* Copyright © 2007 Adrian Johnson
*
* This library is free software; you can redistribute it and/or
* modify it either under the terms of the GNU Lesser General Public
* License version 2.1 as published by the Free Software Foundation
* (the "LGPL") or, at your option, under the terms of the Mozilla
* Public License Version 1.1 (the "MPL"). If you do not alter this
* notice, a recipient may use your version of this file under either
* the MPL or the LGPL.
*
* You should have received a copy of the LGPL along with this library
* in the file COPYING-LGPL-2.1; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
* You should have received a copy of the MPL along with this library
* in the file COPYING-MPL-1.1
*
* The contents of this file are subject to the Mozilla Public License
* Version 1.1 (the "License"); you may not use this file except in
* compliance with the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
* OF ANY KIND, either express or implied. See the LGPL or the MPL for
* the specific language governing rights and limitations.
*
* The Original Code is the cairo graphics library.
*
* The Initial Developer of the Original Code is Red Hat, Inc.
*
* Contributor(s):
* Kristian Høgsberg <[email protected]>
* Carl Worth <[email protected]>
* Adrian Johnson <[email protected]>
*/
/**
* SECTION:cairo-recording
* @Title: Recording Surfaces
* @Short_Description: Records all drawing operations
* @See_Also: #cairo_surface_t
*
* A recording surface is a surface that records all drawing operations at
* the highest level of the surface backend interface, (that is, the
* level of paint, mask, stroke, fill, and show_text_glyphs). The recording
* surface can then be "replayed" against any target surface by using it
* as a source surface.
*
* If you want to replay a surface so that the results in target will be
* identical to the results that would have been obtained if the original
* operations applied to the recording surface had instead been applied to the
* target surface, you can use code like this:
* <informalexample><programlisting>
* cairo_t *cr;
*
* cr = cairo_create (target);
* cairo_set_source_surface (cr, recording_surface, 0.0, 0.0);
* cairo_paint (cr);
* cairo_destroy (cr);
* </programlisting></informalexample>
*
* A recording surface is logically unbounded, i.e. it has no implicit constraint
* on the size of the drawing surface. However, in practice this is rarely
* useful as you wish to replay against a particular target surface with
* known bounds. For this case, it is more efficient to specify the target
* extents to the recording surface upon creation.
*
* The recording phase of the recording surface is careful to snapshot all
* necessary objects (paths, patterns, etc.), in order to achieve
* accurate replay. The efficiency of the recording surface could be
* improved by improving the implementation of snapshot for the
* various objects. For example, it would be nice to have a
* copy-on-write implementation for _cairo_surface_snapshot.
**/
#include "cairoint.h"
#include "cairo-array-private.h"
#include "cairo-analysis-surface-private.h"
#include "cairo-clip-private.h"
#include "cairo-combsort-inline.h"
#include "cairo-composite-rectangles-private.h"
#include "cairo-default-context-private.h"
#include "cairo-error-private.h"
#include "cairo-image-surface-private.h"
#include "cairo-recording-surface-inline.h"
#include "cairo-surface-wrapper-private.h"
#include "cairo-traps-private.h"
typedef enum {
CAIRO_RECORDING_REPLAY,
CAIRO_RECORDING_CREATE_REGIONS
} cairo_recording_replay_type_t;
static const cairo_surface_backend_t cairo_recording_surface_backend;
/**
* CAIRO_HAS_RECORDING_SURFACE:
*
* Defined if the recording surface backend is available.
* The recording surface backend is always built in.
* This macro was added for completeness in cairo 1.10.
*
* Since: 1.10
**/
/* Currently all recording surfaces do have a size which should be passed
* in as the maximum size of any target surface against which the
* recording-surface will ever be replayed.
*
* XXX: The naming of "pixels" in the size here is a misnomer. It's
* actually a size in whatever device-space units are desired (again,
* according to the intended replay target).
*/
static int bbtree_left_or_right (struct bbtree *bbt,
const cairo_box_t *box)
{
int left, right;
if (bbt->left) {
cairo_box_t *e = &bbt->left->extents;
cairo_box_t b;
b.p1.x = MIN (e->p1.x, box->p1.x);
b.p1.y = MIN (e->p1.y, box->p1.y);
b.p2.x = MAX (e->p2.x, box->p2.x);
b.p2.y = MAX (e->p2.y, box->p2.y);
left = _cairo_fixed_integer_part (b.p2.x - b.p1.x) * _cairo_fixed_integer_part (b.p2.y - b.p1.y);
left -= _cairo_fixed_integer_part (e->p2.x - e->p1.x) * _cairo_fixed_integer_part (e->p2.y - e->p1.y);
} else
left = 0;
if (bbt->right) {
cairo_box_t *e = &bbt->right->extents;
cairo_box_t b;
b.p1.x = MIN (e->p1.x, box->p1.x);
b.p1.y = MIN (e->p1.y, box->p1.y);
b.p2.x = MAX (e->p2.x, box->p2.x);
b.p2.y = MAX (e->p2.y, box->p2.y);
right = _cairo_fixed_integer_part (b.p2.x - b.p1.x) * _cairo_fixed_integer_part (b.p2.y - b.p1.y);
right -= _cairo_fixed_integer_part (e->p2.x - e->p1.x) * _cairo_fixed_integer_part (e->p2.y - e->p1.y);
} else
right = 0;
return left <= right;
}
#define INVALID_CHAIN ((cairo_command_header_t *)-1)
static struct bbtree *
bbtree_new (const cairo_box_t *box, cairo_command_header_t *chain)
{
struct bbtree *bbt = malloc (sizeof (*bbt));
if (bbt == NULL)
return NULL;
bbt->extents = *box;
bbt->left = bbt->right = NULL;
bbt->chain = chain;
return bbt;
}
static void
bbtree_init (struct bbtree *bbt, cairo_command_header_t *header)
{
_cairo_box_from_rectangle (&bbt->extents, &header->extents);
bbt->chain = header;
}
static cairo_status_t
bbtree_add (struct bbtree *bbt,
cairo_command_header_t *header,
const cairo_box_t *box)
{
if (box->p1.x < bbt->extents.p1.x || box->p1.y < bbt->extents.p1.y ||
box->p2.x > bbt->extents.p2.x || box->p2.y > bbt->extents.p2.y)
{
if (bbt->chain) {
if (bbtree_left_or_right (bbt, &bbt->extents)) {
if (bbt->left == NULL) {
bbt->left = bbtree_new (&bbt->extents, bbt->chain);
if (unlikely (bbt->left == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
} else
bbtree_add (bbt->left, bbt->chain, &bbt->extents);
} else {
if (bbt->right == NULL) {
bbt->right = bbtree_new (&bbt->extents, bbt->chain);
if (unlikely (bbt->right == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
} else
bbtree_add (bbt->right, bbt->chain, &bbt->extents);
}
bbt->chain = NULL;
}
bbt->extents.p1.x = MIN (bbt->extents.p1.x, box->p1.x);
bbt->extents.p1.y = MIN (bbt->extents.p1.y, box->p1.y);
bbt->extents.p2.x = MAX (bbt->extents.p2.x, box->p2.x);
bbt->extents.p2.y = MAX (bbt->extents.p2.y, box->p2.y);
}
if (box->p1.x == bbt->extents.p1.x && box->p1.y == bbt->extents.p1.y &&
box->p2.x == bbt->extents.p2.x && box->p2.y == bbt->extents.p2.y)
{
header->chain = bbt->chain;
bbt->chain = header;
return CAIRO_STATUS_SUCCESS;
}
if (bbtree_left_or_right (bbt, box)) {
if (bbt->left == NULL) {
bbt->left = bbtree_new (box, header);
if (unlikely (bbt->left == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
} else
return bbtree_add (bbt->left, header, box);
} else {
if (bbt->right == NULL) {
bbt->right = bbtree_new (box, header);
if (unlikely (bbt->right == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
} else
return bbtree_add (bbt->right, header, box);
}
return CAIRO_STATUS_SUCCESS;
}
static void bbtree_del (struct bbtree *bbt)
{
if (bbt->left)
bbtree_del (bbt->left);
if (bbt->right)
bbtree_del (bbt->right);
free (bbt);
}
static cairo_bool_t box_outside (const cairo_box_t *a, const cairo_box_t *b)
{
return
a->p1.x >= b->p2.x || a->p1.y >= b->p2.y ||
a->p2.x <= b->p1.x || a->p2.y <= b->p1.y;
}
static void
bbtree_foreach_mark_visible (struct bbtree *bbt,
const cairo_box_t *box,
int **indices)
{
cairo_command_header_t *chain;
for (chain = bbt->chain; chain; chain = chain->chain)
*(*indices)++ = chain->index;
if (bbt->left && ! box_outside (box, &bbt->left->extents))
bbtree_foreach_mark_visible (bbt->left, box, indices);
if (bbt->right && ! box_outside (box, &bbt->right->extents))
bbtree_foreach_mark_visible (bbt->right, box, indices);
}
static inline int intcmp (const int a, const int b)
{
return a - b;
}
CAIRO_COMBSORT_DECLARE (sort_indices, int, intcmp)
static inline int sizecmp (int a, int b, cairo_command_header_t **elements)
{
const cairo_rectangle_int_t *r;
r = &elements[a]->extents;
a = r->width * r->height;
r = &elements[b]->extents;
b = r->width * r->height;
return b - a;
}
CAIRO_COMBSORT_DECLARE_WITH_DATA (sort_commands, int, sizecmp)
static void
_cairo_recording_surface_destroy_bbtree (cairo_recording_surface_t *surface)
{
cairo_command_t **elements;
int i, num_elements;
if (surface->bbtree.chain == INVALID_CHAIN)
return;
if (surface->bbtree.left) {
bbtree_del (surface->bbtree.left);
surface->bbtree.left = NULL;
}
if (surface->bbtree.right) {
bbtree_del (surface->bbtree.right);
surface->bbtree.right = NULL;
}
elements = _cairo_array_index (&surface->commands, 0);
num_elements = surface->commands.num_elements;
for (i = 0; i < num_elements; i++)
elements[i]->header.chain = NULL;
surface->bbtree.chain = INVALID_CHAIN;
}
static cairo_status_t
_cairo_recording_surface_create_bbtree (cairo_recording_surface_t *surface)
{
cairo_command_t **elements = _cairo_array_index (&surface->commands, 0);
cairo_status_t status;
int i, count;
int *indices;
count = surface->commands.num_elements;
if (count > surface->num_indices) {
free (surface->indices);
surface->indices = _cairo_malloc_ab (count, sizeof (int));
if (unlikely (surface->indices == NULL))
return _cairo_error (CAIRO_STATUS_NO_MEMORY);
surface->num_indices = count;
}
indices = surface->indices;
for (i = 0; i < count; i++)
indices[i] = i;
sort_commands (indices, count, elements);
bbtree_init (&surface->bbtree, &elements[indices[0]]->header);
for (i = 1; i < count; i++) {
cairo_command_header_t *header = &elements[indices[i]]->header;
cairo_box_t box;
_cairo_box_from_rectangle (&box, &header->extents);
status = bbtree_add (&surface->bbtree, header, &box);
if (unlikely (status))
goto cleanup;
}
return CAIRO_STATUS_SUCCESS;
cleanup:
bbtree_del (&surface->bbtree);
return status;
}
/**
* cairo_recording_surface_create:
* @content: the content of the recording surface
* @extents: the extents to record in pixels, can be %NULL to record
* unbounded operations.
*
* Creates a recording-surface which can be used to record all drawing operations
* at the highest level (that is, the level of paint, mask, stroke, fill
* and show_text_glyphs). The recording surface can then be "replayed" against
* any target surface by using it as a source to drawing operations.
*
* The recording phase of the recording surface is careful to snapshot all
* necessary objects (paths, patterns, etc.), in order to achieve
* accurate replay.
*
* Return value: a pointer to the newly created surface. The caller
* owns the surface and should call cairo_surface_destroy() when done
* with it.
*
* Since: 1.10
**/
cairo_surface_t *
cairo_recording_surface_create (cairo_content_t content,
const cairo_rectangle_t *extents)
{
cairo_recording_surface_t *surface;
surface = malloc (sizeof (cairo_recording_surface_t));
if (unlikely (surface == NULL))
return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY));
_cairo_surface_init (&surface->base,
&cairo_recording_surface_backend,
NULL, /* device */
content);
surface->unbounded = TRUE;
/* unbounded -> 'infinite' extents */
if (extents != NULL) {
surface->extents_pixels = *extents;
/* XXX check for overflow */
surface->extents.x = floor (extents->x);
surface->extents.y = floor (extents->y);
surface->extents.width = ceil (extents->x + extents->width) - surface->extents.x;
surface->extents.height = ceil (extents->y + extents->height) - surface->extents.y;
surface->unbounded = FALSE;
}
_cairo_array_init (&surface->commands, sizeof (cairo_command_t *));
surface->base.is_clear = TRUE;
surface->bbtree.left = surface->bbtree.right = NULL;
surface->bbtree.chain = INVALID_CHAIN;
surface->indices = NULL;
surface->num_indices = 0;
surface->optimize_clears = TRUE;
return &surface->base;
}
slim_hidden_def (cairo_recording_surface_create);
static cairo_surface_t *
_cairo_recording_surface_create_similar (void *abstract_surface,
cairo_content_t content,
int width,
int height)
{
cairo_rectangle_t extents;
extents.x = extents.y = 0;
extents.width = width;
extents.height = height;
return cairo_recording_surface_create (content, &extents);
}
static cairo_status_t
_cairo_recording_surface_finish (void *abstract_surface)
{
cairo_recording_surface_t *surface = abstract_surface;
cairo_command_t **elements;
int i, num_elements;
num_elements = surface->commands.num_elements;
elements = _cairo_array_index (&surface->commands, 0);
for (i = 0; i < num_elements; i++) {
cairo_command_t *command = elements[i];
switch (command->header.type) {
case CAIRO_COMMAND_PAINT:
_cairo_pattern_fini (&command->paint.source.base);
break;
case CAIRO_COMMAND_MASK:
_cairo_pattern_fini (&command->mask.source.base);
_cairo_pattern_fini (&command->mask.mask.base);
break;
case CAIRO_COMMAND_STROKE:
_cairo_pattern_fini (&command->stroke.source.base);
_cairo_path_fixed_fini (&command->stroke.path);
_cairo_stroke_style_fini (&command->stroke.style);
break;
case CAIRO_COMMAND_FILL:
_cairo_pattern_fini (&command->fill.source.base);
_cairo_path_fixed_fini (&command->fill.path);
break;
case CAIRO_COMMAND_SHOW_TEXT_GLYPHS:
_cairo_pattern_fini (&command->show_text_glyphs.source.base);
free (command->show_text_glyphs.utf8);
free (command->show_text_glyphs.glyphs);
free (command->show_text_glyphs.clusters);
cairo_scaled_font_destroy (command->show_text_glyphs.scaled_font);
break;
default:
ASSERT_NOT_REACHED;
}
_cairo_clip_destroy (command->header.clip);
free (command);
}
_cairo_array_fini (&surface->commands);
if (surface->bbtree.left)
bbtree_del (surface->bbtree.left);
if (surface->bbtree.right)
bbtree_del (surface->bbtree.right);
free (surface->indices);
return CAIRO_STATUS_SUCCESS;
}
struct proxy {
cairo_surface_t base;
cairo_surface_t *image;
};
static cairo_status_t
proxy_acquire_source_image (void *abstract_surface,
cairo_image_surface_t **image_out,
void **image_extra)
{
struct proxy *proxy = abstract_surface;
return _cairo_surface_acquire_source_image (proxy->image, image_out, image_extra);
}
static void
proxy_release_source_image (void *abstract_surface,
cairo_image_surface_t *image,
void *image_extra)
{
struct proxy *proxy = abstract_surface;
_cairo_surface_release_source_image (proxy->image, image, image_extra);
}
static cairo_status_t
proxy_finish (void *abstract_surface)
{
return CAIRO_STATUS_SUCCESS;
}
static const cairo_surface_backend_t proxy_backend = {
CAIRO_INTERNAL_SURFACE_TYPE_NULL,
proxy_finish,
NULL,
NULL, /* create similar */
NULL, /* create similar image */
NULL, /* map to image */
NULL, /* unmap image */
_cairo_surface_default_source,
proxy_acquire_source_image,
proxy_release_source_image,
};
static cairo_surface_t *
attach_proxy (cairo_surface_t *source,
cairo_surface_t *image)
{
struct proxy *proxy;
proxy = malloc (sizeof (*proxy));
if (unlikely (proxy == NULL))
return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY);
_cairo_surface_init (&proxy->base, &proxy_backend, NULL, image->content);
proxy->image = image;
_cairo_surface_attach_snapshot (source, &proxy->base, NULL);
return &proxy->base;
}
static void
detach_proxy (cairo_surface_t *source,
cairo_surface_t *proxy)
{
cairo_surface_finish (proxy);
cairo_surface_destroy (proxy);
}
static cairo_surface_t *
get_proxy (cairo_surface_t *proxy)
{
return ((struct proxy *)proxy)->image;
}
static cairo_status_t
_cairo_recording_surface_acquire_source_image (void *abstract_surface,
cairo_image_surface_t **image_out,
void **image_extra)
{
cairo_recording_surface_t *surface = abstract_surface;
cairo_surface_t *image, *proxy;
cairo_status_t status;
proxy = _cairo_surface_has_snapshot (abstract_surface, &proxy_backend);
if (proxy != NULL) {
*image_out = (cairo_image_surface_t *)
cairo_surface_reference (get_proxy (proxy));
*image_extra = NULL;
return CAIRO_STATUS_SUCCESS;
}
assert (! surface->unbounded);
image = _cairo_image_surface_create_with_content (surface->base.content,
surface->extents.width,
surface->extents.height);
if (unlikely (image->status))
return image->status;
/* Handle recursion by returning future reads from the current image */
proxy = attach_proxy (abstract_surface, image);
status = _cairo_recording_surface_replay (&surface->base, image);
detach_proxy (abstract_surface, proxy);
if (unlikely (status)) {
cairo_surface_destroy (image);
return status;
}
*image_out = (cairo_image_surface_t *) image;
*image_extra = NULL;
return CAIRO_STATUS_SUCCESS;
}
static void
_cairo_recording_surface_release_source_image (void *abstract_surface,
cairo_image_surface_t *image,
void *image_extra)
{
cairo_surface_destroy (&image->base);
}
static cairo_status_t
_command_init (cairo_recording_surface_t *surface,
cairo_command_header_t *command,
cairo_command_type_t type,
cairo_operator_t op,
cairo_composite_rectangles_t *composite)
{
cairo_status_t status = CAIRO_STATUS_SUCCESS;
command->type = type;
command->op = op;
command->region = CAIRO_RECORDING_REGION_ALL;
command->extents = composite->unbounded;
command->chain = NULL;
command->index = surface->commands.num_elements;
/* steal the clip */
command->clip = NULL;
if (! _cairo_composite_rectangles_can_reduce_clip (composite,
composite->clip))
{
command->clip = composite->clip;
composite->clip = NULL;
}
return status;
}
static void
_cairo_recording_surface_break_self_copy_loop (cairo_recording_surface_t *surface)
{
cairo_surface_flush (&surface->base);
}
static cairo_status_t
_cairo_recording_surface_commit (cairo_recording_surface_t *surface,
cairo_command_header_t *command)
{
_cairo_recording_surface_break_self_copy_loop (surface);
return _cairo_array_append (&surface->commands, &command);
}
static void
_cairo_recording_surface_reset (cairo_recording_surface_t *surface)
{
/* Reset the commands and temporaries */
_cairo_recording_surface_finish (surface);
surface->bbtree.left = surface->bbtree.right = NULL;
surface->bbtree.chain = INVALID_CHAIN;
surface->indices = NULL;
surface->num_indices = 0;
_cairo_array_init (&surface->commands, sizeof (cairo_command_t *));
}
static cairo_bool_t
is_identity_recording_pattern (const cairo_pattern_t *pattern)
{
cairo_surface_t *surface;
if (pattern->type != CAIRO_PATTERN_TYPE_SURFACE)
return FALSE;
if (!_cairo_matrix_is_identity(&pattern->matrix))
return FALSE;
surface = ((cairo_surface_pattern_t *)pattern)->surface;
return surface->backend->type == CAIRO_SURFACE_TYPE_RECORDING;
}
static cairo_int_status_t
_cairo_recording_surface_paint (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_clip_t *clip)
{
cairo_status_t status;
cairo_recording_surface_t *surface = abstract_surface;
cairo_command_paint_t *command;
cairo_composite_rectangles_t composite;
TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id));
if (op == CAIRO_OPERATOR_CLEAR && clip == NULL) {
if (surface->optimize_clears) {
_cairo_recording_surface_reset (surface);
return CAIRO_STATUS_SUCCESS;
}
}
if (clip == NULL && surface->optimize_clears &&
(op == CAIRO_OPERATOR_SOURCE ||
(op == CAIRO_OPERATOR_OVER &&
(surface->base.is_clear || _cairo_pattern_is_opaque_solid (source)))))
{
_cairo_recording_surface_reset (surface);
if (is_identity_recording_pattern (source)) {
cairo_surface_t *src = ((cairo_surface_pattern_t *)source)->surface;
return _cairo_recording_surface_replay (src, &surface->base);
}
}
status = _cairo_composite_rectangles_init_for_paint (&composite,
&surface->base,
op, source,
clip);
if (unlikely (status))
return status;
command = malloc (sizeof (cairo_command_paint_t));
if (unlikely (command == NULL)) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
goto CLEANUP_COMPOSITE;
}
status = _command_init (surface,
&command->header, CAIRO_COMMAND_PAINT, op,
&composite);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_pattern_init_snapshot (&command->source.base, source);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_recording_surface_commit (surface, &command->header);
if (unlikely (status))
goto CLEANUP_SOURCE;
_cairo_recording_surface_destroy_bbtree (surface);
_cairo_composite_rectangles_fini (&composite);
return CAIRO_STATUS_SUCCESS;
CLEANUP_SOURCE:
_cairo_pattern_fini (&command->source.base);
CLEANUP_COMMAND:
_cairo_clip_destroy (command->header.clip);
free (command);
CLEANUP_COMPOSITE:
_cairo_composite_rectangles_fini (&composite);
return status;
}
static cairo_int_status_t
_cairo_recording_surface_mask (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_pattern_t *mask,
const cairo_clip_t *clip)
{
cairo_status_t status;
cairo_recording_surface_t *surface = abstract_surface;
cairo_command_mask_t *command;
cairo_composite_rectangles_t composite;
TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id));
status = _cairo_composite_rectangles_init_for_mask (&composite,
&surface->base,
op, source, mask,
clip);
if (unlikely (status))
return status;
command = malloc (sizeof (cairo_command_mask_t));
if (unlikely (command == NULL)) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
goto CLEANUP_COMPOSITE;
}
status = _command_init (surface,
&command->header, CAIRO_COMMAND_MASK, op,
&composite);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_pattern_init_snapshot (&command->source.base, source);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_pattern_init_snapshot (&command->mask.base, mask);
if (unlikely (status))
goto CLEANUP_SOURCE;
status = _cairo_recording_surface_commit (surface, &command->header);
if (unlikely (status))
goto CLEANUP_MASK;
_cairo_recording_surface_destroy_bbtree (surface);
_cairo_composite_rectangles_fini (&composite);
return CAIRO_STATUS_SUCCESS;
CLEANUP_MASK:
_cairo_pattern_fini (&command->mask.base);
CLEANUP_SOURCE:
_cairo_pattern_fini (&command->source.base);
CLEANUP_COMMAND:
_cairo_clip_destroy (command->header.clip);
free (command);
CLEANUP_COMPOSITE:
_cairo_composite_rectangles_fini (&composite);
return status;
}
static cairo_int_status_t
_cairo_recording_surface_stroke (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_path_fixed_t *path,
const cairo_stroke_style_t *style,
const cairo_matrix_t *ctm,
const cairo_matrix_t *ctm_inverse,
double tolerance,
cairo_antialias_t antialias,
const cairo_clip_t *clip)
{
cairo_status_t status;
cairo_recording_surface_t *surface = abstract_surface;
cairo_command_stroke_t *command;
cairo_composite_rectangles_t composite;
TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id));
status = _cairo_composite_rectangles_init_for_stroke (&composite,
&surface->base,
op, source,
path, style, ctm,
clip);
if (unlikely (status))
return status;
command = malloc (sizeof (cairo_command_stroke_t));
if (unlikely (command == NULL)) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
goto CLEANUP_COMPOSITE;
}
status = _command_init (surface,
&command->header, CAIRO_COMMAND_STROKE, op,
&composite);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_pattern_init_snapshot (&command->source.base, source);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_path_fixed_init_copy (&command->path, path);
if (unlikely (status))
goto CLEANUP_SOURCE;
status = _cairo_stroke_style_init_copy (&command->style, style);
if (unlikely (status))
goto CLEANUP_PATH;
command->ctm = *ctm;
command->ctm_inverse = *ctm_inverse;
command->tolerance = tolerance;
command->antialias = antialias;
status = _cairo_recording_surface_commit (surface, &command->header);
if (unlikely (status))
goto CLEANUP_STYLE;
_cairo_recording_surface_destroy_bbtree (surface);
_cairo_composite_rectangles_fini (&composite);
return CAIRO_STATUS_SUCCESS;
CLEANUP_STYLE:
_cairo_stroke_style_fini (&command->style);
CLEANUP_PATH:
_cairo_path_fixed_fini (&command->path);
CLEANUP_SOURCE:
_cairo_pattern_fini (&command->source.base);
CLEANUP_COMMAND:
_cairo_clip_destroy (command->header.clip);
free (command);
CLEANUP_COMPOSITE:
_cairo_composite_rectangles_fini (&composite);
return status;
}
static cairo_int_status_t
_cairo_recording_surface_fill (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const cairo_path_fixed_t *path,
cairo_fill_rule_t fill_rule,
double tolerance,
cairo_antialias_t antialias,
const cairo_clip_t *clip)
{
cairo_status_t status;
cairo_recording_surface_t *surface = abstract_surface;
cairo_command_fill_t *command;
cairo_composite_rectangles_t composite;
TRACE ((stderr, "%s: surface=%d\n", __FUNCTION__, surface->base.unique_id));
status = _cairo_composite_rectangles_init_for_fill (&composite,
&surface->base,
op, source, path,
clip);
if (unlikely (status))
return status;
command = malloc (sizeof (cairo_command_fill_t));
if (unlikely (command == NULL)) {
status = _cairo_error (CAIRO_STATUS_NO_MEMORY);
goto CLEANUP_COMPOSITE;
}
status =_command_init (surface,
&command->header, CAIRO_COMMAND_FILL, op,
&composite);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_pattern_init_snapshot (&command->source.base, source);
if (unlikely (status))
goto CLEANUP_COMMAND;
status = _cairo_path_fixed_init_copy (&command->path, path);
if (unlikely (status))
goto CLEANUP_SOURCE;
command->fill_rule = fill_rule;
command->tolerance = tolerance;
command->antialias = antialias;
status = _cairo_recording_surface_commit (surface, &command->header);
if (unlikely (status))
goto CLEANUP_PATH;
_cairo_recording_surface_destroy_bbtree (surface);
_cairo_composite_rectangles_fini (&composite);
return CAIRO_STATUS_SUCCESS;
CLEANUP_PATH:
_cairo_path_fixed_fini (&command->path);
CLEANUP_SOURCE:
_cairo_pattern_fini (&command->source.base);
CLEANUP_COMMAND:
_cairo_clip_destroy (command->header.clip);
free (command);
CLEANUP_COMPOSITE:
_cairo_composite_rectangles_fini (&composite);
return status;
}
static cairo_bool_t
_cairo_recording_surface_has_show_text_glyphs (void *abstract_surface)
{
return TRUE;
}
static cairo_int_status_t
_cairo_recording_surface_show_text_glyphs (void *abstract_surface,
cairo_operator_t op,
const cairo_pattern_t *source,
const char *utf8,
int utf8_len,
cairo_glyph_t *glyphs,
int num_glyphs,
const cairo_text_cluster_t *clusters,
int num_clusters,
cairo_text_cluster_flags_t cluster_flags,
cairo_scaled_font_t *scaled_font,
const cairo_clip_t *clip)
{
cairo_status_t status;
cairo_recording_surface_t *surface = abstract_surface;