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/* 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
*
* 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>
*/
#ifndef CAIRO_IMAGE_SURFACE_PRIVATE_H
#define CAIRO_IMAGE_SURFACE_PRIVATE_H
#include "cairo-surface-private.h"
#include <stddef.h>
#include <pixman.h>
CAIRO_BEGIN_DECLS
/* The canonical image backend */
struct _cairo_image_surface {
cairo_surface_t base;
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;
ptrdiff_t stride;
int depth;
unsigned owns_data : 1;
unsigned transparency : 2;
unsigned color : 2;
};
#define to_image_surface(S) ((cairo_image_surface_t *)(S))
/* A wrapper for holding pixman images returned by create_for_pattern */
typedef struct _cairo_image_source {
cairo_surface_t base;
pixman_image_t *pixman_image;
unsigned is_opaque_solid : 1;
} cairo_image_source_t;
cairo_private extern const cairo_surface_backend_t _cairo_image_surface_backend;
cairo_private extern const cairo_surface_backend_t _cairo_image_source_backend;
cairo_private const cairo_compositor_t *
_cairo_image_mask_compositor_get (void);
cairo_private const cairo_compositor_t *
_cairo_image_traps_compositor_get (void);
cairo_private const cairo_compositor_t *
_cairo_image_spans_compositor_get (void);
#define _cairo_image_default_compositor_get _cairo_image_spans_compositor_get
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);
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);
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);
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);
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);
cairo_private void
_cairo_image_surface_init (cairo_image_surface_t *surface,
pixman_image_t *pixman_image,
pixman_format_code_t pixman_format);
cairo_private cairo_surface_t *
_cairo_image_surface_create_similar (void *abstract_other,
cairo_content_t content,
int width,
int height);
cairo_private cairo_image_surface_t *
_cairo_image_surface_map_to_image (void *abstract_other,
const cairo_rectangle_int_t *extents);
cairo_private cairo_int_status_t
_cairo_image_surface_unmap_image (void *abstract_surface,
cairo_image_surface_t *image);
cairo_private cairo_surface_t *
_cairo_image_surface_source (void *abstract_surface,
cairo_rectangle_int_t *extents);
cairo_private cairo_status_t
_cairo_image_surface_acquire_source_image (void *abstract_surface,
cairo_image_surface_t **image_out,
void **image_extra);
cairo_private void
_cairo_image_surface_release_source_image (void *abstract_surface,
cairo_image_surface_t *image,
void *image_extra);
cairo_private cairo_surface_t *
_cairo_image_surface_snapshot (void *abstract_surface);
cairo_private_no_warn cairo_bool_t
_cairo_image_surface_get_extents (void *abstract_surface,
cairo_rectangle_int_t *rectangle);
cairo_private void
_cairo_image_surface_get_font_options (void *abstract_surface,
cairo_font_options_t *options);
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);
cairo_private cairo_status_t
_cairo_image_surface_finish (void *abstract_surface);
cairo_private pixman_image_t *
_pixman_image_for_color (const cairo_color_t *cairo_color);
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);
cairo_private void
_pixman_image_add_traps (pixman_image_t *image,
int dst_x, int dst_y,
cairo_traps_t *traps);
cairo_private void
_pixman_image_add_tristrip (pixman_image_t *image,
int dst_x, int dst_y,
cairo_tristrip_t *strip);
cairo_private cairo_image_surface_t *
_cairo_image_surface_clone_subimage (cairo_surface_t *surface,
const cairo_rectangle_int_t *extents);
/* 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);
CAIRO_END_DECLS
#endif /* CAIRO_IMAGE_SURFACE_PRIVATE_H */