source/libs/cairo/cairo-src/src/cairo-recording-surface-private.h

   1 /* cairo - a vector graphics library with display and print output
   2  *
   3  * Copyright © 2005 Red Hat, Inc
   4  *
   5  * This library is free software; you can redistribute it and/or
   6  * modify it either under the terms of the GNU Lesser General Public
   7  * License version 2.1 as published by the Free Software Foundation
   8  * (the "LGPL") or, at your option, under the terms of the Mozilla
   9  * Public License Version 1.1 (the "MPL"). If you do not alter this
  10  * notice, a recipient may use your version of this file under either
  11  * the MPL or the LGPL.
  12  *
  13  * You should have received a copy of the LGPL along with this library
  14  * in the file COPYING-LGPL-2.1; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA
  16  * You should have received a copy of the MPL along with this library
  17  * in the file COPYING-MPL-1.1
  18  *
  19  * The contents of this file are subject to the Mozilla Public License
  20  * Version 1.1 (the "License"); you may not use this file except in
  21  * compliance with the License. You may obtain a copy of the License at
  22  * http://www.mozilla.org/MPL/
  23  *
  24  * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY
  25  * OF ANY KIND, either express or implied. See the LGPL or the MPL for
  26  * the specific language governing rights and limitations.
  27  *
  28  * The Original Code is the cairo graphics library.
  29  *
  30  * The Initial Developer of the Original Code is Red Hat, Inc.
  31  *
  32  * Contributor(s):
  33  *      Kristian Høgsberg <krh@redhat.com>
  34  *      Adrian Johnson <ajohnson@redneon.com>
  35  */
  36
  37 #ifndef CAIRO_RECORDING_SURFACE_H
  38 #define CAIRO_RECORDING_SURFACE_H
  39
  40 #include "cairoint.h"
  41 #include "cairo-path-fixed-private.h"
  42 #include "cairo-pattern-private.h"
  43 #include "cairo-surface-backend-private.h"
  44
  45 typedef enum {
  46     /* The 5 basic drawing operations. */
  47     CAIRO_COMMAND_PAINT,
  48     CAIRO_COMMAND_MASK,
  49     CAIRO_COMMAND_STROKE,
  50     CAIRO_COMMAND_FILL,
  51     CAIRO_COMMAND_SHOW_TEXT_GLYPHS,
  52 } cairo_command_type_t;
  53
  54 typedef enum {
  55     CAIRO_RECORDING_REGION_ALL,
  56     CAIRO_RECORDING_REGION_NATIVE,
  57     CAIRO_RECORDING_REGION_IMAGE_FALLBACK
  58 } cairo_recording_region_type_t;
  59
  60 typedef struct _cairo_command_header {
  61     cairo_command_type_t         type;
  62     cairo_recording_region_type_t region;
  63     cairo_operator_t             op;
  64     cairo_rectangle_int_t        extents;
  65     cairo_clip_t                *clip;
  66
  67     int index;
  68     struct _cairo_command_header *chain;
  69 } cairo_command_header_t;
  70
  71 typedef struct _cairo_command_paint {
  72     cairo_command_header_t       header;
  73     cairo_pattern_union_t        source;
  74 } cairo_command_paint_t;
  75
  76 typedef struct _cairo_command_mask {
  77     cairo_command_header_t       header;
  78     cairo_pattern_union_t        source;
  79     cairo_pattern_union_t        mask;
  80 } cairo_command_mask_t;
  81
  82 typedef struct _cairo_command_stroke {
  83     cairo_command_header_t       header;
  84     cairo_pattern_union_t        source;
  85     cairo_path_fixed_t           path;
  86     cairo_stroke_style_t         style;
  87     cairo_matrix_t               ctm;
  88     cairo_matrix_t               ctm_inverse;
  89     double                       tolerance;
  90     cairo_antialias_t            antialias;
  91 } cairo_command_stroke_t;
  92
  93 typedef struct _cairo_command_fill {
  94     cairo_command_header_t       header;
  95     cairo_pattern_union_t        source;
  96     cairo_path_fixed_t           path;
  97     cairo_fill_rule_t            fill_rule;
  98     double                       tolerance;
  99     cairo_antialias_t            antialias;
 100 } cairo_command_fill_t;
 101
 102 typedef struct _cairo_command_show_text_glyphs {
 103     cairo_command_header_t       header;
 104     cairo_pattern_union_t        source;
 105     char                        *utf8;
 106     int                          utf8_len;
 107     cairo_glyph_t               *glyphs;
 108     unsigned int                 num_glyphs;
 109     cairo_text_cluster_t        *clusters;
 110     int                          num_clusters;
 111     cairo_text_cluster_flags_t   cluster_flags;
 112     cairo_scaled_font_t         *scaled_font;
 113 } cairo_command_show_text_glyphs_t;
 114
 115 typedef union _cairo_command {
 116     cairo_command_header_t      header;
 117
 118     cairo_command_paint_t                       paint;
 119     cairo_command_mask_t                        mask;
 120     cairo_command_stroke_t                      stroke;
 121     cairo_command_fill_t                        fill;
 122     cairo_command_show_text_glyphs_t            show_text_glyphs;
 123 } cairo_command_t;
 124
 125 typedef struct _cairo_recording_surface {
 126     cairo_surface_t base;
 127
 128     /* A recording-surface is logically unbounded, but when used as a
 129      * source we need to render it to an image, so we need a size at
 130      * which to create that image. */
 131     cairo_rectangle_t extents_pixels;
 132     cairo_rectangle_int_t extents;
 133     cairo_bool_t unbounded;
 134
 135     cairo_array_t commands;
 136     unsigned int *indices;
 137     unsigned int num_indices;
 138     cairo_bool_t optimize_clears;
 139     cairo_bool_t has_bilevel_alpha;
 140     cairo_bool_t has_only_op_over;
 141
 142     struct bbtree {
 143         cairo_box_t extents;
 144         struct bbtree *left, *right;
 145         cairo_command_header_t *chain;
 146     } bbtree;
 147 } cairo_recording_surface_t;
 148
 149 slim_hidden_proto (cairo_recording_surface_create);
 150
 151 cairo_private cairo_int_status_t
 152 _cairo_recording_surface_get_path (cairo_surface_t       *surface,
 153                                    cairo_path_fixed_t *path);
 154
 155 cairo_private cairo_status_t
 156 _cairo_recording_surface_replay_one (cairo_recording_surface_t  *surface,
 157                                      long unsigned index,
 158                                      cairo_surface_t *target);
 159
 160 cairo_private cairo_status_t
 161 _cairo_recording_surface_replay (cairo_surface_t *surface,
 162                                  cairo_surface_t *target);
 163
 164 cairo_private cairo_status_t
 165 _cairo_recording_surface_replay_with_clip (cairo_surface_t *surface,
 166                                            const cairo_matrix_t *surface_transform,
 167                                            cairo_surface_t *target,
 168                                            const cairo_clip_t *target_clip);
 169
 170 cairo_private cairo_status_t
 171 _cairo_recording_surface_replay_and_create_regions (cairo_surface_t *surface,
 172                                                     cairo_surface_t *target);
 173 cairo_private cairo_status_t
 174 _cairo_recording_surface_replay_region (cairo_surface_t                 *surface,
 175                                         const cairo_rectangle_int_t *surface_extents,
 176                                         cairo_surface_t                 *target,
 177                                         cairo_recording_region_type_t   region);
 178
 179 cairo_private cairo_status_t
 180 _cairo_recording_surface_get_bbox (cairo_recording_surface_t *recording,
 181                                    cairo_box_t *bbox,
 182                                    const cairo_matrix_t *transform);
 183
 184 cairo_private cairo_status_t
 185 _cairo_recording_surface_get_ink_bbox (cairo_recording_surface_t *surface,
 186                                        cairo_box_t *bbox,
 187                                        const cairo_matrix_t *transform);
 188
 189 cairo_private cairo_bool_t
 190 _cairo_recording_surface_has_only_bilevel_alpha (cairo_recording_surface_t *surface);
 191
 192 cairo_private cairo_bool_t
 193 _cairo_recording_surface_has_only_op_over (cairo_recording_surface_t *surface);
 194
 195 #endif /* CAIRO_RECORDING_SURFACE_H */