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4349 | Serge | 1 | /* cairo - a vector graphics library with display and print output |
2 | * |
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3 | * Copyright © 2002 University of Southern California |
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4 | * Copyright © 2005 Red Hat, Inc. |
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5 | * |
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6 | * This library is free software; you can redistribute it and/or |
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7 | * modify it either under the terms of the GNU Lesser General Public |
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8 | * License version 2.1 as published by the Free Software Foundation |
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9 | * (the "LGPL") or, at your option, under the terms of the Mozilla |
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10 | * Public License Version 1.1 (the "MPL"). If you do not alter this |
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11 | * notice, a recipient may use your version of this file under either |
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12 | * the MPL or the LGPL. |
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13 | * |
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14 | * You should have received a copy of the LGPL along with this library |
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15 | * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
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16 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
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17 | * You should have received a copy of the MPL along with this library |
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18 | * in the file COPYING-MPL-1.1 |
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19 | * |
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20 | * The contents of this file are subject to the Mozilla Public License |
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21 | * Version 1.1 (the "License"); you may not use this file except in |
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22 | * compliance with the License. You may obtain a copy of the License at |
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23 | * http://www.mozilla.org/MPL/ |
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24 | * |
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25 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
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26 | * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
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27 | * the specific language governing rights and limitations. |
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28 | * |
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29 | * The Original Code is the cairo graphics library. |
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30 | * |
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31 | * The Initial Developer of the Original Code is University of Southern |
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32 | * California. |
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33 | * |
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34 | * Contributor(s): |
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35 | * Carl D. Worth |
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36 | */ |
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37 | |||
38 | #ifndef CAIRO_SURFACE_BACKEND_PRIVATE_H |
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39 | #define CAIRO_SURFACE_BACKEND_PRIVATE_H |
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40 | |||
41 | #include "cairo-compiler-private.h" |
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42 | #include "cairo-error-private.h" |
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43 | |||
44 | CAIRO_BEGIN_DECLS |
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45 | |||
46 | struct _cairo_surface_backend { |
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47 | cairo_surface_type_t type; |
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48 | |||
49 | cairo_warn cairo_status_t |
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50 | (*finish) (void *surface); |
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51 | |||
52 | cairo_t * |
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53 | (*create_context) (void *surface); |
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54 | |||
55 | cairo_surface_t * |
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56 | (*create_similar) (void *surface, |
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57 | cairo_content_t content, |
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58 | int width, |
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59 | int height); |
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60 | cairo_surface_t * |
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61 | (*create_similar_image) (void *surface, |
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62 | cairo_format_t format, |
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63 | int width, |
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64 | int height); |
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65 | |||
66 | cairo_image_surface_t * |
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67 | (*map_to_image) (void *surface, |
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68 | const cairo_rectangle_int_t *extents); |
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69 | cairo_int_status_t |
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70 | (*unmap_image) (void *surface, |
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71 | cairo_image_surface_t *image); |
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72 | |||
73 | cairo_surface_t * |
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74 | (*source) (void *abstract_surface, |
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75 | cairo_rectangle_int_t *extents); |
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76 | |||
77 | cairo_warn cairo_status_t |
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78 | (*acquire_source_image) (void *abstract_surface, |
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79 | cairo_image_surface_t **image_out, |
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80 | void **image_extra); |
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81 | |||
82 | cairo_warn void |
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83 | (*release_source_image) (void *abstract_surface, |
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84 | cairo_image_surface_t *image_out, |
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85 | void *image_extra); |
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86 | |||
87 | cairo_surface_t * |
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88 | (*snapshot) (void *surface); |
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89 | |||
90 | cairo_warn cairo_int_status_t |
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91 | (*copy_page) (void *surface); |
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92 | |||
93 | cairo_warn cairo_int_status_t |
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94 | (*show_page) (void *surface); |
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95 | |||
96 | /* Get the extents of the current surface. For many surface types |
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97 | * this will be as simple as { x=0, y=0, width=surface->width, |
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98 | * height=surface->height}. |
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99 | * |
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100 | * If this function is not implemented, or if it returns |
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101 | * FALSE the surface is considered to be |
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102 | * boundless and infinite bounds are used for it. |
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103 | */ |
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104 | cairo_bool_t |
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105 | (*get_extents) (void *surface, |
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106 | cairo_rectangle_int_t *extents); |
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107 | |||
108 | void |
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109 | (*get_font_options) (void *surface, |
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110 | cairo_font_options_t *options); |
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111 | |||
112 | cairo_warn cairo_status_t |
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113 | (*flush) (void *surface, |
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114 | unsigned flags); |
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115 | |||
116 | cairo_warn cairo_status_t |
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117 | (*mark_dirty_rectangle) (void *surface, |
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118 | int x, |
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119 | int y, |
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120 | int width, |
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121 | int height); |
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122 | |||
123 | cairo_warn cairo_int_status_t |
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124 | (*paint) (void *surface, |
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125 | cairo_operator_t op, |
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126 | const cairo_pattern_t *source, |
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127 | const cairo_clip_t *clip); |
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128 | |||
129 | cairo_warn cairo_int_status_t |
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130 | (*mask) (void *surface, |
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131 | cairo_operator_t op, |
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132 | const cairo_pattern_t *source, |
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133 | const cairo_pattern_t *mask, |
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134 | const cairo_clip_t *clip); |
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135 | |||
136 | cairo_warn cairo_int_status_t |
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137 | (*stroke) (void *surface, |
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138 | cairo_operator_t op, |
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139 | const cairo_pattern_t *source, |
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140 | const cairo_path_fixed_t *path, |
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141 | const cairo_stroke_style_t *style, |
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142 | const cairo_matrix_t *ctm, |
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143 | const cairo_matrix_t *ctm_inverse, |
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144 | double tolerance, |
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145 | cairo_antialias_t antialias, |
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146 | const cairo_clip_t *clip); |
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147 | |||
148 | cairo_warn cairo_int_status_t |
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149 | (*fill) (void *surface, |
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150 | cairo_operator_t op, |
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151 | const cairo_pattern_t *source, |
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152 | const cairo_path_fixed_t *path, |
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153 | cairo_fill_rule_t fill_rule, |
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154 | double tolerance, |
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155 | cairo_antialias_t antialias, |
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156 | const cairo_clip_t *clip); |
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157 | |||
158 | cairo_warn cairo_int_status_t |
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159 | (*fill_stroke) (void *surface, |
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160 | cairo_operator_t fill_op, |
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161 | const cairo_pattern_t *fill_source, |
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162 | cairo_fill_rule_t fill_rule, |
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163 | double fill_tolerance, |
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164 | cairo_antialias_t fill_antialias, |
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165 | const cairo_path_fixed_t*path, |
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166 | cairo_operator_t stroke_op, |
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167 | const cairo_pattern_t *stroke_source, |
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168 | const cairo_stroke_style_t *stroke_style, |
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169 | const cairo_matrix_t *stroke_ctm, |
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170 | const cairo_matrix_t *stroke_ctm_inverse, |
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171 | double stroke_tolerance, |
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172 | cairo_antialias_t stroke_antialias, |
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173 | const cairo_clip_t *clip); |
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174 | |||
175 | cairo_warn cairo_int_status_t |
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176 | (*show_glyphs) (void *surface, |
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177 | cairo_operator_t op, |
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178 | const cairo_pattern_t *source, |
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179 | cairo_glyph_t *glyphs, |
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180 | int num_glyphs, |
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181 | cairo_scaled_font_t *scaled_font, |
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182 | const cairo_clip_t *clip); |
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183 | |||
184 | cairo_bool_t |
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185 | (*has_show_text_glyphs) (void *surface); |
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186 | |||
187 | cairo_warn cairo_int_status_t |
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188 | (*show_text_glyphs) (void *surface, |
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189 | cairo_operator_t op, |
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190 | const cairo_pattern_t *source, |
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191 | const char *utf8, |
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192 | int utf8_len, |
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193 | cairo_glyph_t *glyphs, |
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194 | int num_glyphs, |
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195 | const cairo_text_cluster_t *clusters, |
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196 | int num_clusters, |
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197 | cairo_text_cluster_flags_t cluster_flags, |
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198 | cairo_scaled_font_t *scaled_font, |
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199 | const cairo_clip_t *clip); |
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200 | |||
201 | const char ** |
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202 | (*get_supported_mime_types) (void *surface); |
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203 | }; |
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204 | |||
205 | cairo_private cairo_status_t |
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206 | _cairo_surface_default_acquire_source_image (void *surface, |
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207 | cairo_image_surface_t **image_out, |
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208 | void **image_extra); |
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209 | |||
210 | cairo_private void |
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211 | _cairo_surface_default_release_source_image (void *surface, |
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212 | cairo_image_surface_t *image, |
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213 | void *image_extra); |
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214 | |||
215 | cairo_private cairo_surface_t * |
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216 | _cairo_surface_default_source (void *surface, |
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217 | cairo_rectangle_int_t *extents); |
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218 | |||
219 | CAIRO_END_DECLS |
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220 | |||
221 | #endif /* CAIRO_SURFACE_BACKEND_PRIVATE_H */ |