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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
+ * 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>
+ */
+
+#ifndef CAIRO_IMAGE_SURFACE_PRIVATE_H
+#define CAIRO_IMAGE_SURFACE_PRIVATE_H
+
+#include "cairo-surface-private.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;
+ int 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 */