0,0 → 1,238 |
/* cairo - a vector graphics library with display and print output |
* |
* Copyright © 2002 University of Southern California |
* Copyright © 2005 Red Hat, Inc. |
* |
* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 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 University of Southern |
* California. |
* |
* Contributor(s): |
* Carl D. Worth <cworth@cworth.org> |
*/ |
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#ifndef CAIRO_IMAGE_SURFACE_PRIVATE_H |
#define CAIRO_IMAGE_SURFACE_PRIVATE_H |
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#include "cairo-surface-private.h" |
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#include <pixman.h> |
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CAIRO_BEGIN_DECLS |
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/* The canonical image backend */ |
struct _cairo_image_surface { |
cairo_surface_t base; |
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pixman_image_t *pixman_image; |
const cairo_compositor_t *compositor; |
|
/* Parenting is tricky wrt lifetime tracking... |
* |
* One use for tracking the parent of an image surface is for |
* create_similar_image() where we wish to create a device specific |
* surface but return an image surface to the user. In such a case, |
* the image may be owned by the device specific surface, its parent, |
* but the user lifetime tracking is then performed on the image. So |
* when the image is then finalized we call cairo_surface_destroy() |
* on the parent. However, for normal usage where the lifetime tracking |
* is done on the parent surface, we need to be careful to unhook |
* the image->parent pointer before finalizing the image. |
*/ |
cairo_surface_t *parent; |
|
pixman_format_code_t pixman_format; |
cairo_format_t format; |
unsigned char *data; |
|
int width; |
int height; |
int stride; |
int depth; |
|
unsigned owns_data : 1; |
unsigned transparency : 2; |
unsigned color : 2; |
}; |
#define to_image_surface(S) ((cairo_image_surface_t *)(S)) |
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/* A wrapper for holding pixman images returned by create_for_pattern */ |
typedef struct _cairo_image_source { |
cairo_surface_t base; |
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pixman_image_t *pixman_image; |
unsigned is_opaque_solid : 1; |
} cairo_image_source_t; |
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cairo_private extern const cairo_surface_backend_t _cairo_image_surface_backend; |
cairo_private extern const cairo_surface_backend_t _cairo_image_source_backend; |
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cairo_private const cairo_compositor_t * |
_cairo_image_mask_compositor_get (void); |
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cairo_private const cairo_compositor_t * |
_cairo_image_traps_compositor_get (void); |
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cairo_private const cairo_compositor_t * |
_cairo_image_spans_compositor_get (void); |
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#define _cairo_image_default_compositor_get _cairo_image_spans_compositor_get |
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cairo_private cairo_int_status_t |
_cairo_image_surface_paint (void *abstract_surface, |
cairo_operator_t op, |
const cairo_pattern_t *source, |
const cairo_clip_t *clip); |
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cairo_private cairo_int_status_t |
_cairo_image_surface_mask (void *abstract_surface, |
cairo_operator_t op, |
const cairo_pattern_t *source, |
const cairo_pattern_t *mask, |
const cairo_clip_t *clip); |
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cairo_private cairo_int_status_t |
_cairo_image_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); |
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cairo_private cairo_int_status_t |
_cairo_image_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); |
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cairo_private cairo_int_status_t |
_cairo_image_surface_glyphs (void *abstract_surface, |
cairo_operator_t op, |
const cairo_pattern_t *source, |
cairo_glyph_t *glyphs, |
int num_glyphs, |
cairo_scaled_font_t *scaled_font, |
const cairo_clip_t *clip); |
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cairo_private void |
_cairo_image_surface_init (cairo_image_surface_t *surface, |
pixman_image_t *pixman_image, |
pixman_format_code_t pixman_format); |
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cairo_private cairo_surface_t * |
_cairo_image_surface_create_similar (void *abstract_other, |
cairo_content_t content, |
int width, |
int height); |
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cairo_private cairo_image_surface_t * |
_cairo_image_surface_map_to_image (void *abstract_other, |
const cairo_rectangle_int_t *extents); |
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cairo_private cairo_int_status_t |
_cairo_image_surface_unmap_image (void *abstract_surface, |
cairo_image_surface_t *image); |
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cairo_private cairo_surface_t * |
_cairo_image_surface_source (void *abstract_surface, |
cairo_rectangle_int_t *extents); |
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cairo_private cairo_status_t |
_cairo_image_surface_acquire_source_image (void *abstract_surface, |
cairo_image_surface_t **image_out, |
void **image_extra); |
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cairo_private void |
_cairo_image_surface_release_source_image (void *abstract_surface, |
cairo_image_surface_t *image, |
void *image_extra); |
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cairo_private cairo_surface_t * |
_cairo_image_surface_snapshot (void *abstract_surface); |
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cairo_private_no_warn cairo_bool_t |
_cairo_image_surface_get_extents (void *abstract_surface, |
cairo_rectangle_int_t *rectangle); |
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cairo_private void |
_cairo_image_surface_get_font_options (void *abstract_surface, |
cairo_font_options_t *options); |
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cairo_private cairo_surface_t * |
_cairo_image_source_create_for_pattern (cairo_surface_t *dst, |
const cairo_pattern_t *pattern, |
cairo_bool_t is_mask, |
const cairo_rectangle_int_t *extents, |
const cairo_rectangle_int_t *sample, |
int *src_x, int *src_y); |
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cairo_private cairo_status_t |
_cairo_image_surface_finish (void *abstract_surface); |
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cairo_private pixman_image_t * |
_pixman_image_for_color (const cairo_color_t *cairo_color); |
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cairo_private pixman_image_t * |
_pixman_image_for_pattern (cairo_image_surface_t *dst, |
const cairo_pattern_t *pattern, |
cairo_bool_t is_mask, |
const cairo_rectangle_int_t *extents, |
const cairo_rectangle_int_t *sample, |
int *tx, int *ty); |
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cairo_private void |
_pixman_image_add_traps (pixman_image_t *image, |
int dst_x, int dst_y, |
cairo_traps_t *traps); |
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cairo_private void |
_pixman_image_add_tristrip (pixman_image_t *image, |
int dst_x, int dst_y, |
cairo_tristrip_t *strip); |
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cairo_private cairo_image_surface_t * |
_cairo_image_surface_clone_subimage (cairo_surface_t *surface, |
const cairo_rectangle_int_t *extents); |
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/* Similar to clone; but allow format conversion */ |
cairo_private cairo_image_surface_t * |
_cairo_image_surface_create_from_image (cairo_image_surface_t *other, |
pixman_format_code_t format, |
int x, int y, int width, int height, |
int stride); |
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CAIRO_END_DECLS |
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#endif /* CAIRO_IMAGE_SURFACE_PRIVATE_H */ |