source/libs/cairo/cairo-src/src/cairo-backend-private.h

   1 /* cairo - a vector graphics library with display and print output
   2  *
   3  * Copyright © 2010 Intel Corporation
   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 Intel Corporation
  31  *
  32  * Contributor(s):
  33  *      Chris Wilson <chris@chris-wilson.co.uk>
  34  */
  35
  36 #ifndef CAIRO_BACKEND_PRIVATE_H
  37 #define CAIRO_BACKEND_PRIVATE_H
  38
  39 #include "cairo-types-private.h"
  40 #include "cairo-private.h"
  41
  42 typedef enum _cairo_backend_type {
  43     CAIRO_TYPE_DEFAULT,
  44     CAIRO_TYPE_SKIA,
  45 } cairo_backend_type_t;
  46
  47 struct _cairo_backend {
  48     cairo_backend_type_t type;
  49     void (*destroy) (void *cr);
  50
  51     cairo_surface_t *(*get_original_target) (void *cr);
  52     cairo_surface_t *(*get_current_target) (void *cr);
  53
  54     cairo_status_t (*save) (void *cr);
  55     cairo_status_t (*restore) (void *cr);
  56
  57     cairo_status_t (*push_group) (void *cr, cairo_content_t content);
  58     cairo_pattern_t *(*pop_group) (void *cr);
  59
  60     cairo_status_t (*set_source_rgba) (void *cr, double red, double green, double blue, double alpha);
  61     cairo_status_t (*set_source_surface) (void *cr, cairo_surface_t *surface, double x, double y);
  62     cairo_status_t (*set_source) (void *cr, cairo_pattern_t *source);
  63     cairo_pattern_t *(*get_source) (void *cr);
  64
  65     cairo_status_t (*set_antialias) (void *cr, cairo_antialias_t antialias);
  66     cairo_status_t (*set_dash) (void *cr, const double *dashes, int num_dashes, double offset);
  67     cairo_status_t (*set_fill_rule) (void *cr, cairo_fill_rule_t fill_rule);
  68     cairo_status_t (*set_line_cap) (void *cr, cairo_line_cap_t line_cap);
  69     cairo_status_t (*set_line_join) (void *cr, cairo_line_join_t line_join);
  70     cairo_status_t (*set_line_width) (void *cr, double line_width);
  71     cairo_status_t (*set_miter_limit) (void *cr, double limit);
  72     cairo_status_t (*set_opacity) (void *cr, double opacity);
  73     cairo_status_t (*set_operator) (void *cr, cairo_operator_t op);
  74     cairo_status_t (*set_tolerance) (void *cr, double tolerance);
  75
  76     cairo_antialias_t (*get_antialias) (void *cr);
  77     void (*get_dash) (void *cr, double *dashes, int *num_dashes, double *offset);
  78     cairo_fill_rule_t (*get_fill_rule) (void *cr);
  79     cairo_line_cap_t (*get_line_cap) (void *cr);
  80     cairo_line_join_t (*get_line_join) (void *cr);
  81     double (*get_line_width) (void *cr);
  82     double (*get_miter_limit) (void *cr);
  83     double (*get_opacity) (void *cr);
  84     cairo_operator_t (*get_operator) (void *cr);
  85     double (*get_tolerance) (void *cr);
  86
  87     cairo_status_t (*translate) (void *cr, double tx, double ty);
  88     cairo_status_t (*scale) (void *cr, double sx, double sy);
  89     cairo_status_t (*rotate) (void *cr, double theta);
  90     cairo_status_t (*transform) (void *cr, const cairo_matrix_t *matrix);
  91     cairo_status_t (*set_matrix) (void *cr, const cairo_matrix_t *matrix);
  92     cairo_status_t (*set_identity_matrix) (void *cr);
  93     void (*get_matrix) (void *cr, cairo_matrix_t *matrix);
  94
  95     void (*user_to_device) (void *cr, double *x, double *y);
  96     void (*user_to_device_distance) (void *cr, double *x, double *y);
  97     void (*device_to_user) (void *cr, double *x, double *y);
  98     void (*device_to_user_distance) (void *cr, double *x, double *y);
  99
 100     void (*user_to_backend) (void *cr, double *x, double *y);
 101     void (*user_to_backend_distance) (void *cr, double *x, double *y);
 102     void (*backend_to_user) (void *cr, double *x, double *y);
 103     void (*backend_to_user_distance) (void *cr, double *x, double *y);
 104
 105     cairo_status_t (*new_path) (void *cr);
 106     cairo_status_t (*new_sub_path) (void *cr);
 107     cairo_status_t (*move_to) (void *cr, double x, double y);
 108     cairo_status_t (*rel_move_to) (void *cr, double dx, double dy);
 109     cairo_status_t (*line_to) (void *cr, double x, double y);
 110     cairo_status_t (*rel_line_to) (void *cr, double dx, double dy);
 111     cairo_status_t (*curve_to) (void *cr, double x1, double y1, double x2, double y2, double x3, double y3);
 112     cairo_status_t (*rel_curve_to) (void *cr, double dx1, double dy1, double dx2, double dy2, double dx3, double dy3);
 113     cairo_status_t (*arc_to) (void *cr, double x1, double y1, double x2, double y2, double radius);
 114     cairo_status_t (*rel_arc_to) (void *cr, double dx1, double dy1, double dx2, double dy2, double radius);
 115     cairo_status_t (*close_path) (void *cr);
 116
 117     cairo_status_t (*arc) (void *cr, double xc, double yc, double radius, double angle1, double angle2, cairo_bool_t forward);
 118     cairo_status_t (*rectangle) (void *cr, double x, double y, double width, double height);
 119
 120     void (*path_extents) (void *cr, double *x1, double *y1, double *x2, double *y2);
 121     cairo_bool_t (*has_current_point) (void *cr);
 122     cairo_bool_t (*get_current_point) (void *cr, double *x, double *y);
 123
 124     cairo_path_t *(*copy_path) (void *cr);
 125     cairo_path_t *(*copy_path_flat) (void *cr);
 126     cairo_status_t (*append_path) (void *cr, const cairo_path_t *path);
 127
 128     cairo_status_t (*stroke_to_path) (void *cr);
 129
 130     cairo_status_t (*clip) (void *cr);
 131     cairo_status_t (*clip_preserve) (void *cr);
 132     cairo_status_t (*in_clip) (void *cr, double x, double y, cairo_bool_t *inside);
 133     cairo_status_t (*clip_extents) (void *cr, double *x1, double *y1, double *x2, double *y2);
 134     cairo_status_t (*reset_clip) (void *cr);
 135     cairo_rectangle_list_t *(*clip_copy_rectangle_list) (void *cr);
 136
 137     cairo_status_t (*paint) (void *cr);
 138     cairo_status_t (*paint_with_alpha) (void *cr, double opacity);
 139     cairo_status_t (*mask) (void *cr, cairo_pattern_t *pattern);
 140
 141     cairo_status_t (*stroke) (void *cr);
 142     cairo_status_t (*stroke_preserve) (void *cr);
 143     cairo_status_t (*in_stroke) (void *cr, double x, double y, cairo_bool_t *inside);
 144     cairo_status_t (*stroke_extents) (void *cr, double *x1, double *y1, double *x2, double *y2);
 145
 146     cairo_status_t (*fill) (void *cr);
 147     cairo_status_t (*fill_preserve) (void *cr);
 148     cairo_status_t (*in_fill) (void *cr, double x, double y, cairo_bool_t *inside);
 149     cairo_status_t (*fill_extents) (void *cr, double *x1, double *y1, double *x2, double *y2);
 150
 151     cairo_status_t (*set_font_face) (void *cr, cairo_font_face_t *font_face);
 152     cairo_font_face_t *(*get_font_face) (void *cr);
 153     cairo_status_t (*set_font_size) (void *cr, double size);
 154     cairo_status_t (*set_font_matrix) (void *cr, const cairo_matrix_t *matrix);
 155     void (*get_font_matrix) (void *cr, cairo_matrix_t *matrix);
 156     cairo_status_t (*set_font_options) (void *cr, const cairo_font_options_t *options);
 157     void (*get_font_options) (void *cr, cairo_font_options_t *options);
 158     cairo_status_t (*set_scaled_font) (void *cr, cairo_scaled_font_t *scaled_font);
 159     cairo_scaled_font_t *(*get_scaled_font) (void *cr);
 160     cairo_status_t (*font_extents) (void *cr, cairo_font_extents_t *extents);
 161
 162     cairo_status_t (*glyphs) (void *cr,
 163                               const cairo_glyph_t *glyphs, int num_glyphs,
 164                               cairo_glyph_text_info_t *info);
 165     cairo_status_t (*glyph_path) (void *cr,
 166                                   const cairo_glyph_t *glyphs, int num_glyphs);
 167
 168     cairo_status_t (*glyph_extents) (void *cr,
 169                                      const cairo_glyph_t *glyphs,
 170                                      int num_glyphs,
 171                                      cairo_text_extents_t *extents);
 172
 173     cairo_status_t (*copy_page) (void *cr);
 174     cairo_status_t (*show_page) (void *cr);
 175 };
 176
 177 static inline void
 178 _cairo_backend_to_user (cairo_t *cr, double *x, double *y)
 179 {
 180     cr->backend->backend_to_user (cr, x, y);
 181 }
 182
 183 static inline void
 184 _cairo_backend_to_user_distance (cairo_t *cr, double *x, double *y)
 185 {
 186     cr->backend->backend_to_user_distance (cr, x, y);
 187 }
 188
 189 static inline void
 190 _cairo_user_to_backend (cairo_t *cr, double *x, double *y)
 191 {
 192     cr->backend->user_to_backend (cr, x, y);
 193 }
 194
 195 static inline void
 196 _cairo_user_to_backend_distance (cairo_t *cr, double *x, double *y)
 197 {
 198     cr->backend->user_to_backend_distance (cr, x, y);
 199 }
 200
 201 #endif /* CAIRO_BACKEND_PRIVATE_H */