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4349 | Serge | 1 | /* -*- Mode: c; c-basic-offset: 4; indent-tabs-mode: t; tab-width: 8; -*- */ |
2 | /* cairo - a vector graphics library with display and print output |
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3 | * |
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4 | * Copyright © 2002 University of Southern California |
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5 | * Copyright © 2005 Red Hat, Inc. |
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6 | * |
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7 | * This library is free software; you can redistribute it and/or |
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8 | * modify it either under the terms of the GNU Lesser General Public |
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9 | * License version 2.1 as published by the Free Software Foundation |
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10 | * (the "LGPL") or, at your option, under the terms of the Mozilla |
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11 | * Public License Version 1.1 (the "MPL"). If you do not alter this |
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12 | * notice, a recipient may use your version of this file under either |
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13 | * the MPL or the LGPL. |
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14 | * |
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15 | * You should have received a copy of the LGPL along with this library |
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16 | * in the file COPYING-LGPL-2.1; if not, write to the Free Software |
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17 | * Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA |
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18 | * You should have received a copy of the MPL along with this library |
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19 | * in the file COPYING-MPL-1.1 |
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20 | * |
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21 | * The contents of this file are subject to the Mozilla Public License |
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22 | * Version 1.1 (the "License"); you may not use this file except in |
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23 | * compliance with the License. You may obtain a copy of the License at |
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24 | * http://www.mozilla.org/MPL/ |
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25 | * |
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26 | * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY |
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27 | * OF ANY KIND, either express or implied. See the LGPL or the MPL for |
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28 | * the specific language governing rights and limitations. |
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29 | * |
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30 | * The Original Code is the cairo graphics library. |
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31 | * |
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32 | * The Initial Developer of the Original Code is University of Southern |
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33 | * California. |
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34 | * |
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35 | * Contributor(s): |
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36 | * Carl D. Worth |
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37 | * Behdad Esfahbod |
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38 | * Chris Wilson |
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39 | * Karl Tomlinson |
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40 | */ |
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41 | #include "cairoint.h" |
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42 | |||
43 | #if !CAIRO_HAS_XLIB_XCB_FUNCTIONS |
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44 | |||
45 | #include "cairo-xlib-private.h" |
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46 | #include "cairo-xlib-surface-private.h" |
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47 | |||
48 | #include "cairo-error-private.h" |
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49 | #include "cairo-image-surface-inline.h" |
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50 | #include "cairo-paginated-private.h" |
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51 | #include "cairo-pattern-inline.h" |
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52 | #include "cairo-recording-surface-private.h" |
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53 | #include "cairo-surface-backend-private.h" |
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54 | #include "cairo-surface-offset-private.h" |
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55 | #include "cairo-surface-observer-private.h" |
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56 | #include "cairo-surface-snapshot-inline.h" |
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57 | #include "cairo-surface-subsurface-inline.h" |
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58 | |||
59 | #define PIXMAN_MAX_INT ((pixman_fixed_1 >> 1) - pixman_fixed_e) /* need to ensure deltas also fit */ |
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60 | |||
61 | static cairo_xlib_surface_t * |
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62 | unwrap_source (const cairo_surface_pattern_t *pattern) |
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63 | { |
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64 | cairo_rectangle_int_t limits; |
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65 | return (cairo_xlib_surface_t *)_cairo_pattern_get_source (pattern, &limits); |
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66 | } |
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67 | |||
68 | static cairo_status_t |
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69 | _cairo_xlib_source_finish (void *abstract_surface) |
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70 | { |
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71 | cairo_xlib_source_t *source = abstract_surface; |
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72 | |||
73 | XRenderFreePicture (source->dpy, source->picture); |
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74 | if (source->pixmap) |
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75 | XFreePixmap (source->dpy, source->pixmap); |
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76 | return CAIRO_STATUS_SUCCESS; |
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77 | } |
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78 | |||
79 | static const cairo_surface_backend_t cairo_xlib_source_backend = { |
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80 | CAIRO_SURFACE_TYPE_XLIB, |
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81 | _cairo_xlib_source_finish, |
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82 | NULL, /* read-only wrapper */ |
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83 | }; |
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84 | |||
85 | static cairo_status_t |
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86 | _cairo_xlib_proxy_finish (void *abstract_surface) |
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87 | { |
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88 | cairo_xlib_proxy_t *proxy = abstract_surface; |
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89 | |||
90 | _cairo_xlib_shm_surface_mark_active (proxy->owner); |
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91 | XRenderFreePicture (proxy->source.dpy, proxy->source.picture); |
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92 | if (proxy->source.pixmap) |
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93 | XFreePixmap (proxy->source.dpy, proxy->source.pixmap); |
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94 | cairo_surface_destroy (proxy->owner); |
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95 | return CAIRO_STATUS_SUCCESS; |
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96 | } |
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97 | |||
98 | static const cairo_surface_backend_t cairo_xlib_proxy_backend = { |
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99 | CAIRO_SURFACE_TYPE_XLIB, |
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100 | _cairo_xlib_proxy_finish, |
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101 | NULL, /* read-only wrapper */ |
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102 | }; |
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103 | |||
104 | static cairo_surface_t * |
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105 | source (cairo_xlib_surface_t *dst, Picture picture, Pixmap pixmap) |
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106 | { |
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107 | cairo_xlib_source_t *source; |
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108 | |||
109 | if (picture == None) |
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110 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); |
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111 | |||
112 | source = malloc (sizeof (*source)); |
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113 | if (unlikely (source == NULL)) { |
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114 | XRenderFreePicture (dst->display->display, picture); |
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115 | if (pixmap) |
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116 | XFreePixmap (dst->display->display, pixmap); |
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117 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); |
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118 | } |
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119 | |||
120 | _cairo_surface_init (&source->base, |
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121 | &cairo_xlib_source_backend, |
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122 | NULL, /* device */ |
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123 | CAIRO_CONTENT_COLOR_ALPHA); |
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124 | |||
125 | /* The source exists only within an operation */ |
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126 | source->picture = picture; |
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127 | source->pixmap = pixmap; |
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128 | source->dpy = dst->display->display; |
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129 | |||
130 | return &source->base; |
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131 | } |
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132 | |||
133 | static uint32_t |
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134 | hars_petruska_f54_1_random (void) |
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135 | { |
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136 | #define rol(x,k) ((x << k) | (x >> (32-k))) |
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137 | static uint32_t x; |
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138 | return x = (x ^ rol (x, 5) ^ rol (x, 24)) + 0x37798849; |
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139 | #undef rol |
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140 | } |
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141 | |||
142 | static const XTransform identity = { |
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143 | { |
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144 | { 1 << 16, 0x00000, 0x00000 }, |
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145 | { 0x00000, 1 << 16, 0x00000 }, |
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146 | { 0x00000, 0x00000, 1 << 16 }, |
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147 | } |
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148 | }; |
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149 | |||
150 | static cairo_bool_t |
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151 | picture_set_matrix (cairo_xlib_display_t *display, |
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152 | Picture picture, |
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153 | const cairo_matrix_t *matrix, |
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154 | cairo_filter_t filter, |
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155 | double xc, |
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156 | double yc, |
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157 | int *x_offset, |
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158 | int *y_offset) |
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159 | { |
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160 | XTransform xtransform; |
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161 | pixman_transform_t *pixman_transform; |
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162 | cairo_int_status_t status; |
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163 | |||
164 | /* Casting between pixman_transform_t and XTransform is safe because |
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165 | * they happen to be the exact same type. |
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166 | */ |
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167 | pixman_transform = (pixman_transform_t *) &xtransform; |
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168 | status = _cairo_matrix_to_pixman_matrix_offset (matrix, filter, xc, yc, |
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169 | pixman_transform, |
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170 | x_offset, y_offset); |
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171 | if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) |
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172 | return TRUE; |
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173 | if (unlikely (status != CAIRO_INT_STATUS_SUCCESS)) |
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174 | return FALSE; |
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175 | |||
176 | if (memcmp (&xtransform, &identity, sizeof (XTransform)) == 0) |
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177 | return TRUE; |
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178 | |||
179 | /* a late check in case we perturb the matrix too far */ |
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180 | if (! CAIRO_RENDER_HAS_PICTURE_TRANSFORM (display)) |
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181 | return FALSE; |
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182 | |||
183 | XRenderSetPictureTransform (display->display, picture, &xtransform); |
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184 | return TRUE; |
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185 | } |
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186 | |||
187 | static cairo_status_t |
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188 | picture_set_filter (Display *dpy, |
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189 | Picture picture, |
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190 | cairo_filter_t filter) |
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191 | { |
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192 | const char *render_filter; |
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193 | |||
194 | switch (filter) { |
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195 | case CAIRO_FILTER_FAST: |
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196 | render_filter = FilterFast; |
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197 | break; |
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198 | case CAIRO_FILTER_GOOD: |
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199 | render_filter = FilterGood; |
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200 | break; |
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201 | case CAIRO_FILTER_BEST: |
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202 | render_filter = FilterBest; |
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203 | break; |
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204 | case CAIRO_FILTER_NEAREST: |
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205 | render_filter = FilterNearest; |
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206 | break; |
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207 | case CAIRO_FILTER_BILINEAR: |
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208 | render_filter = FilterBilinear; |
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209 | break; |
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210 | case CAIRO_FILTER_GAUSSIAN: |
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211 | /* XXX: The GAUSSIAN value has no implementation in cairo |
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212 | * whatsoever, so it was really a mistake to have it in the |
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213 | * API. We could fix this by officially deprecating it, or |
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214 | * else inventing semantics and providing an actual |
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215 | * implementation for it. */ |
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216 | default: |
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217 | render_filter = FilterBest; |
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218 | break; |
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219 | } |
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220 | |||
221 | XRenderSetPictureFilter (dpy, picture, (char *) render_filter, NULL, 0); |
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222 | return CAIRO_STATUS_SUCCESS; |
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223 | } |
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224 | |||
225 | static int |
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226 | extend_to_repeat (cairo_extend_t extend) |
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227 | { |
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228 | switch (extend) { |
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229 | default: |
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230 | ASSERT_NOT_REACHED; |
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231 | case CAIRO_EXTEND_NONE: |
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232 | return RepeatNone; |
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233 | case CAIRO_EXTEND_REPEAT: |
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234 | return RepeatNormal; |
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235 | case CAIRO_EXTEND_REFLECT: |
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236 | return RepeatReflect; |
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237 | case CAIRO_EXTEND_PAD: |
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238 | return RepeatPad; |
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239 | } |
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240 | } |
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241 | |||
242 | static cairo_bool_t |
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243 | picture_set_properties (cairo_xlib_display_t *display, |
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244 | Picture picture, |
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245 | const cairo_pattern_t *pattern, |
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246 | const cairo_matrix_t *matrix, |
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247 | const cairo_rectangle_int_t *extents, |
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248 | int *x_off, int *y_off) |
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249 | { |
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250 | XRenderPictureAttributes pa; |
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251 | int mask = 0; |
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252 | |||
253 | if (! picture_set_matrix (display, picture, matrix, pattern->filter, |
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254 | extents->x + extents->width / 2, |
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255 | extents->y + extents->height / 2, |
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256 | x_off, y_off)) |
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257 | return FALSE; |
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258 | |||
259 | picture_set_filter (display->display, picture, pattern->filter); |
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260 | |||
261 | if (pattern->has_component_alpha) { |
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262 | pa.component_alpha = 1; |
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263 | mask |= CPComponentAlpha; |
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264 | } |
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265 | |||
266 | if (pattern->extend != CAIRO_EXTEND_NONE) { |
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267 | pa.repeat = extend_to_repeat (pattern->extend); |
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268 | mask |= CPRepeat; |
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269 | } |
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270 | |||
271 | if (mask) |
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272 | XRenderChangePicture (display->display, picture, mask, &pa); |
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273 | |||
274 | return TRUE; |
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275 | } |
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276 | |||
277 | static cairo_surface_t * |
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278 | render_pattern (cairo_xlib_surface_t *dst, |
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279 | const cairo_pattern_t *pattern, |
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280 | cairo_bool_t is_mask, |
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281 | const cairo_rectangle_int_t *extents, |
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282 | int *src_x, int *src_y) |
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283 | { |
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284 | Display *dpy = dst->display->display; |
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285 | cairo_xlib_surface_t *src; |
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286 | cairo_image_surface_t *image; |
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287 | cairo_status_t status; |
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288 | cairo_rectangle_int_t map_extents; |
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289 | |||
290 | src = (cairo_xlib_surface_t *) |
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291 | _cairo_surface_create_similar_scratch (&dst->base, |
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292 | is_mask ? CAIRO_CONTENT_ALPHA : CAIRO_CONTENT_COLOR_ALPHA, |
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293 | extents->width, |
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294 | extents->height); |
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295 | if (src->base.type != CAIRO_SURFACE_TYPE_XLIB) { |
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296 | cairo_surface_destroy (&src->base); |
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297 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); |
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298 | } |
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299 | |||
300 | map_extents = *extents; |
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301 | map_extents.x = map_extents.y = 0; |
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302 | |||
303 | image = _cairo_surface_map_to_image (&src->base, &map_extents); |
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304 | status = _cairo_surface_offset_paint (&image->base, extents->x, extents->y, |
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305 | CAIRO_OPERATOR_SOURCE, pattern, |
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306 | NULL); |
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307 | status = _cairo_surface_unmap_image (&src->base, image); |
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308 | if (unlikely (status)) { |
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309 | cairo_surface_destroy (&src->base); |
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310 | return _cairo_surface_create_in_error (status); |
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311 | } |
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312 | |||
313 | status = _cairo_xlib_surface_put_shm (src); |
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314 | if (unlikely (status)) { |
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315 | cairo_surface_destroy (&src->base); |
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316 | return _cairo_surface_create_in_error (status); |
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317 | } |
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318 | |||
319 | src->picture = XRenderCreatePicture (dpy, |
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320 | src->drawable, src->xrender_format, |
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321 | 0, NULL); |
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322 | |||
323 | *src_x = -extents->x; |
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324 | *src_y = -extents->y; |
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325 | return &src->base; |
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326 | } |
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327 | |||
328 | static cairo_surface_t * |
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329 | gradient_source (cairo_xlib_surface_t *dst, |
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330 | const cairo_gradient_pattern_t *gradient, |
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331 | cairo_bool_t is_mask, |
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332 | const cairo_rectangle_int_t *extents, |
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333 | int *src_x, int *src_y) |
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334 | { |
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335 | cairo_xlib_display_t *display = dst->display; |
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336 | cairo_matrix_t matrix = gradient->base.matrix; |
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337 | char buf[CAIRO_STACK_BUFFER_SIZE]; |
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338 | cairo_circle_double_t extremes[2]; |
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339 | XFixed *stops; |
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340 | XRenderColor *colors; |
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341 | Picture picture; |
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342 | unsigned int i, n_stops; |
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343 | |||
344 | /* The RENDER specification says that the inner circle has |
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345 | * to be completely contained inside the outer one. */ |
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346 | if (gradient->base.type == CAIRO_PATTERN_TYPE_RADIAL && |
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347 | ! _cairo_radial_pattern_focus_is_inside ((cairo_radial_pattern_t *) gradient)) |
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348 | return render_pattern (dst, &gradient->base, is_mask, extents, src_x, src_y); |
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349 | |||
350 | assert (gradient->n_stops > 0); |
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351 | n_stops = MAX (gradient->n_stops, 2); |
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352 | |||
353 | if (n_stops < sizeof (buf) / (sizeof (XFixed) + sizeof (XRenderColor))) |
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354 | { |
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355 | stops = (XFixed *) buf; |
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356 | } |
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357 | else |
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358 | { |
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359 | stops = |
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360 | _cairo_malloc_ab (n_stops, |
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361 | sizeof (XFixed) + sizeof (XRenderColor)); |
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362 | if (unlikely (stops == NULL)) |
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363 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); |
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364 | } |
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365 | |||
366 | colors = (XRenderColor *) (stops + n_stops); |
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367 | for (i = 0; i < gradient->n_stops; i++) { |
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368 | stops[i] = |
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369 | _cairo_fixed_16_16_from_double (gradient->stops[i].offset); |
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370 | |||
371 | colors[i].red = gradient->stops[i].color.red_short; |
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372 | colors[i].green = gradient->stops[i].color.green_short; |
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373 | colors[i].blue = gradient->stops[i].color.blue_short; |
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374 | colors[i].alpha = gradient->stops[i].color.alpha_short; |
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375 | } |
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376 | |||
377 | /* RENDER does not support gradients with less than 2 |
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378 | * stops. If a gradient has only a single stop, duplicate |
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379 | * it to make RENDER happy. */ |
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380 | if (gradient->n_stops == 1) { |
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381 | stops[1] = |
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382 | _cairo_fixed_16_16_from_double (gradient->stops[0].offset); |
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383 | |||
384 | colors[1].red = gradient->stops[0].color.red_short; |
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385 | colors[1].green = gradient->stops[0].color.green_short; |
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386 | colors[1].blue = gradient->stops[0].color.blue_short; |
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387 | colors[1].alpha = gradient->stops[0].color.alpha_short; |
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388 | } |
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389 | |||
390 | #if 0 |
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391 | /* For some weird reason the X server is sometimes getting |
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392 | * CreateGradient requests with bad length. So far I've only seen |
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393 | * XRenderCreateLinearGradient request with 4 stops sometime end up |
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394 | * with length field matching 0 stops at the server side. I've |
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395 | * looked at the libXrender code and I can't see anything that |
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396 | * could cause this behavior. However, for some reason having a |
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397 | * XSync call here seems to avoid the issue so I'll keep it here |
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398 | * until it's solved. |
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399 | */ |
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400 | XSync (display->display, False); |
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401 | #endif |
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402 | |||
403 | _cairo_gradient_pattern_fit_to_range (gradient, PIXMAN_MAX_INT >> 1, &matrix, extremes); |
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404 | |||
405 | if (gradient->base.type == CAIRO_PATTERN_TYPE_LINEAR) { |
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406 | XLinearGradient grad; |
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407 | |||
408 | grad.p1.x = _cairo_fixed_16_16_from_double (extremes[0].center.x); |
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409 | grad.p1.y = _cairo_fixed_16_16_from_double (extremes[0].center.y); |
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410 | grad.p2.x = _cairo_fixed_16_16_from_double (extremes[1].center.x); |
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411 | grad.p2.y = _cairo_fixed_16_16_from_double (extremes[1].center.y); |
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412 | |||
413 | picture = XRenderCreateLinearGradient (display->display, &grad, |
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414 | stops, colors, |
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415 | n_stops); |
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416 | } else { |
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417 | XRadialGradient grad; |
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418 | |||
419 | grad.inner.x = _cairo_fixed_16_16_from_double (extremes[0].center.x); |
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420 | grad.inner.y = _cairo_fixed_16_16_from_double (extremes[0].center.y); |
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421 | grad.inner.radius = _cairo_fixed_16_16_from_double (extremes[0].radius); |
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422 | grad.outer.x = _cairo_fixed_16_16_from_double (extremes[1].center.x); |
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423 | grad.outer.y = _cairo_fixed_16_16_from_double (extremes[1].center.y); |
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424 | grad.outer.radius = _cairo_fixed_16_16_from_double (extremes[1].radius); |
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425 | |||
426 | picture = XRenderCreateRadialGradient (display->display, &grad, |
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427 | stops, colors, |
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428 | n_stops); |
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429 | } |
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430 | |||
431 | if (stops != (XFixed *) buf) |
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432 | free (stops); |
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433 | |||
434 | *src_x = *src_y = 0; |
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435 | if (! picture_set_properties (display, picture, |
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436 | &gradient->base, &gradient->base.matrix, |
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437 | extents, |
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438 | src_x, src_y)) { |
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439 | XRenderFreePicture (display->display, picture); |
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440 | return render_pattern (dst, &gradient->base, is_mask, extents, src_x, src_y); |
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441 | } |
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442 | |||
443 | return source (dst, picture, None); |
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444 | } |
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445 | |||
446 | static cairo_surface_t * |
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447 | color_source (cairo_xlib_surface_t *dst, const cairo_color_t *color) |
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448 | { |
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449 | Display *dpy = dst->display->display; |
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450 | XRenderColor xcolor; |
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451 | Picture picture; |
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452 | Pixmap pixmap = None; |
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453 | |||
454 | xcolor.red = color->red_short; |
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455 | xcolor.green = color->green_short; |
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456 | xcolor.blue = color->blue_short; |
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457 | xcolor.alpha = color->alpha_short; |
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458 | |||
459 | if (CAIRO_RENDER_HAS_GRADIENTS(dst->display)) { |
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460 | picture = XRenderCreateSolidFill (dpy, &xcolor); |
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461 | } else { |
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462 | XRenderPictureAttributes pa; |
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463 | int mask = 0; |
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464 | |||
465 | pa.repeat = RepeatNormal; |
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466 | mask |= CPRepeat; |
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467 | |||
468 | pixmap = XCreatePixmap (dpy, dst->drawable, 1, 1, 32); |
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469 | picture = XRenderCreatePicture (dpy, pixmap, |
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470 | _cairo_xlib_display_get_xrender_format (dst->display, CAIRO_FORMAT_ARGB32), |
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471 | mask, &pa); |
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472 | |||
473 | if (CAIRO_RENDER_HAS_FILL_RECTANGLES(dst->display)) { |
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474 | XRectangle r = { 0, 0, 1, 1}; |
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475 | XRenderFillRectangles (dpy, PictOpSrc, picture, &xcolor, &r, 1); |
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476 | } else { |
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477 | XGCValues gcv; |
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478 | GC gc; |
||
479 | |||
480 | gc = _cairo_xlib_screen_get_gc (dst->display, dst->screen, |
||
481 | 32, pixmap); |
||
482 | if (unlikely (gc == NULL)) { |
||
483 | XFreePixmap (dpy, pixmap); |
||
484 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); |
||
485 | } |
||
486 | |||
487 | gcv.foreground = 0; |
||
488 | gcv.foreground |= color->alpha_short >> 8 << 24; |
||
489 | gcv.foreground |= color->red_short >> 8 << 16; |
||
490 | gcv.foreground |= color->green_short >> 8 << 8; |
||
491 | gcv.foreground |= color->blue_short >> 8 << 0; |
||
492 | gcv.fill_style = FillSolid; |
||
493 | |||
494 | XChangeGC (dpy, gc, GCFillStyle | GCForeground, &gcv); |
||
495 | XFillRectangle (dpy, pixmap, gc, 0, 0, 1, 1); |
||
496 | |||
497 | _cairo_xlib_screen_put_gc (dst->display, dst->screen, 32, gc); |
||
498 | } |
||
499 | } |
||
500 | |||
501 | return source (dst, picture, pixmap); |
||
502 | } |
||
503 | |||
504 | static cairo_surface_t * |
||
505 | alpha_source (cairo_xlib_surface_t *dst, uint8_t alpha) |
||
506 | { |
||
507 | cairo_xlib_display_t *display = dst->display; |
||
508 | |||
509 | if (display->alpha[alpha] == NULL) { |
||
510 | cairo_color_t color; |
||
511 | |||
512 | color.red_short = color.green_short = color.blue_short = 0; |
||
513 | color.alpha_short = alpha << 8 | alpha; |
||
514 | |||
515 | display->alpha[alpha] = color_source (dst, &color); |
||
516 | } |
||
517 | |||
518 | return cairo_surface_reference (display->alpha[alpha]); |
||
519 | } |
||
520 | |||
521 | static cairo_surface_t * |
||
522 | white_source (cairo_xlib_surface_t *dst) |
||
523 | { |
||
524 | cairo_xlib_display_t *display = dst->display; |
||
525 | |||
526 | if (display->white == NULL) |
||
527 | display->white = color_source (dst, CAIRO_COLOR_WHITE); |
||
528 | |||
529 | return cairo_surface_reference (display->white); |
||
530 | } |
||
531 | |||
532 | static cairo_surface_t * |
||
533 | opaque_source (cairo_xlib_surface_t *dst, const cairo_color_t *color) |
||
534 | { |
||
535 | cairo_xlib_display_t *display = dst->display; |
||
536 | uint32_t pixel = |
||
537 | 0xff000000 | |
||
538 | color->red_short >> 8 << 16 | |
||
539 | color->green_short >> 8 << 8 | |
||
540 | color->blue_short >> 8 << 0; |
||
541 | int i; |
||
542 | |||
543 | if (display->last_solid_cache[0].color == pixel) |
||
544 | return cairo_surface_reference (display->solid[display->last_solid_cache[0].index]); |
||
545 | |||
546 | for (i = 0; i < 16; i++) { |
||
547 | if (display->solid_cache[i] == pixel) |
||
548 | goto done; |
||
549 | } |
||
550 | |||
551 | i = hars_petruska_f54_1_random () % 16; |
||
552 | cairo_surface_destroy (display->solid[i]); |
||
553 | |||
554 | display->solid[i] = color_source (dst, color); |
||
555 | display->solid_cache[i] = pixel; |
||
556 | |||
557 | done: |
||
558 | display->last_solid_cache[0].color = pixel; |
||
559 | display->last_solid_cache[0].index = i; |
||
560 | return cairo_surface_reference (display->solid[i]); |
||
561 | } |
||
562 | |||
563 | static cairo_surface_t * |
||
564 | transparent_source (cairo_xlib_surface_t *dst, const cairo_color_t *color) |
||
565 | { |
||
566 | cairo_xlib_display_t *display = dst->display; |
||
567 | uint32_t pixel = |
||
568 | color->alpha_short >> 8 << 24 | |
||
569 | color->red_short >> 8 << 16 | |
||
570 | color->green_short >> 8 << 8 | |
||
571 | color->blue_short >> 8 << 0; |
||
572 | int i; |
||
573 | |||
574 | if (display->last_solid_cache[1].color == pixel) { |
||
575 | assert (display->solid[display->last_solid_cache[1].index]); |
||
576 | return cairo_surface_reference (display->solid[display->last_solid_cache[1].index]); |
||
577 | } |
||
578 | |||
579 | for (i = 16; i < 32; i++) { |
||
580 | if (display->solid_cache[i] == pixel) |
||
581 | goto done; |
||
582 | } |
||
583 | |||
584 | i = 16 + (hars_petruska_f54_1_random () % 16); |
||
585 | cairo_surface_destroy (display->solid[i]); |
||
586 | |||
587 | display->solid[i] = color_source (dst, color); |
||
588 | display->solid_cache[i] = pixel; |
||
589 | |||
590 | done: |
||
591 | display->last_solid_cache[1].color = pixel; |
||
592 | display->last_solid_cache[1].index = i; |
||
593 | assert (display->solid[i]); |
||
594 | return cairo_surface_reference (display->solid[i]); |
||
595 | } |
||
596 | |||
597 | static cairo_surface_t * |
||
598 | solid_source (cairo_xlib_surface_t *dst, |
||
599 | const cairo_color_t *color) |
||
600 | { |
||
601 | if ((color->red_short | color->green_short | color->blue_short) <= 0xff) |
||
602 | return alpha_source (dst, color->alpha_short >> 8); |
||
603 | |||
604 | if (CAIRO_ALPHA_SHORT_IS_OPAQUE (color->alpha_short)) { |
||
605 | if (color->red_short >= 0xff00 && color->green_short >= 0xff00 && color->blue_short >= 0xff00) |
||
606 | return white_source (dst); |
||
607 | |||
608 | return opaque_source (dst, color); |
||
609 | } else |
||
610 | return transparent_source (dst, color); |
||
611 | } |
||
612 | |||
613 | static cairo_xlib_source_t *init_source (cairo_xlib_surface_t *dst, |
||
614 | cairo_xlib_surface_t *src) |
||
615 | { |
||
616 | Display *dpy = dst->display->display; |
||
617 | cairo_xlib_source_t *source = &src->embedded_source; |
||
618 | |||
619 | /* As these are frequent and meant to be fast, we track pictures for |
||
620 | * native surface and minimise update requests. |
||
621 | */ |
||
622 | if (source->picture == None) { |
||
623 | XRenderPictureAttributes pa; |
||
624 | |||
625 | _cairo_surface_init (&source->base, |
||
626 | &cairo_xlib_source_backend, |
||
627 | NULL, /* device */ |
||
628 | CAIRO_CONTENT_COLOR_ALPHA); |
||
629 | |||
630 | pa.subwindow_mode = IncludeInferiors; |
||
631 | source->picture = XRenderCreatePicture (dpy, |
||
632 | src->drawable, |
||
633 | src->xrender_format, |
||
634 | CPSubwindowMode, &pa); |
||
635 | |||
636 | source->has_component_alpha = 0; |
||
637 | source->has_matrix = 0; |
||
638 | source->filter = CAIRO_FILTER_NEAREST; |
||
639 | source->extend = CAIRO_EXTEND_NONE; |
||
640 | } |
||
641 | |||
642 | return (cairo_xlib_source_t *) cairo_surface_reference (&source->base); |
||
643 | } |
||
644 | |||
645 | static cairo_surface_t * |
||
646 | embedded_source (cairo_xlib_surface_t *dst, |
||
647 | const cairo_surface_pattern_t *pattern, |
||
648 | const cairo_rectangle_int_t *extents, |
||
649 | int *src_x, int *src_y, |
||
650 | cairo_xlib_source_t *source) |
||
651 | { |
||
652 | Display *dpy = dst->display->display; |
||
653 | cairo_int_status_t status; |
||
654 | XTransform xtransform; |
||
655 | XRenderPictureAttributes pa; |
||
656 | unsigned mask = 0; |
||
657 | |||
658 | status = _cairo_matrix_to_pixman_matrix_offset (&pattern->base.matrix, |
||
659 | pattern->base.filter, |
||
660 | extents->x + extents->width / 2, |
||
661 | extents->y + extents->height / 2, |
||
662 | (pixman_transform_t *)&xtransform, |
||
663 | src_x, src_y); |
||
664 | |||
665 | if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) { |
||
666 | if (source->has_matrix) { |
||
667 | source->has_matrix = 0; |
||
668 | memcpy (&xtransform, &identity, sizeof (identity)); |
||
669 | status = CAIRO_INT_STATUS_SUCCESS; |
||
670 | } |
||
671 | } else |
||
672 | source->has_matrix = 1; |
||
673 | if (status == CAIRO_INT_STATUS_SUCCESS) |
||
674 | XRenderSetPictureTransform (dpy, source->picture, &xtransform); |
||
675 | |||
676 | if (source->filter != pattern->base.filter) { |
||
677 | picture_set_filter (dpy, source->picture, pattern->base.filter); |
||
678 | source->filter = pattern->base.filter; |
||
679 | } |
||
680 | |||
681 | if (source->has_component_alpha != pattern->base.has_component_alpha) { |
||
682 | pa.component_alpha = pattern->base.has_component_alpha; |
||
683 | mask |= CPComponentAlpha; |
||
684 | source->has_component_alpha = pattern->base.has_component_alpha; |
||
685 | } |
||
686 | |||
687 | if (source->extend != pattern->base.extend) { |
||
688 | pa.repeat = extend_to_repeat (pattern->base.extend); |
||
689 | mask |= CPRepeat; |
||
690 | source->extend = pattern->base.extend; |
||
691 | } |
||
692 | |||
693 | if (mask) |
||
694 | XRenderChangePicture (dpy, source->picture, mask, &pa); |
||
695 | |||
696 | return &source->base; |
||
697 | } |
||
698 | |||
699 | static cairo_surface_t * |
||
700 | subsurface_source (cairo_xlib_surface_t *dst, |
||
701 | const cairo_surface_pattern_t *pattern, |
||
702 | cairo_bool_t is_mask, |
||
703 | const cairo_rectangle_int_t *extents, |
||
704 | const cairo_rectangle_int_t *sample, |
||
705 | int *src_x, int *src_y) |
||
706 | { |
||
707 | cairo_surface_subsurface_t *sub; |
||
708 | cairo_xlib_surface_t *src; |
||
709 | cairo_xlib_source_t *source; |
||
710 | Display *dpy = dst->display->display; |
||
711 | cairo_int_status_t status; |
||
712 | cairo_surface_pattern_t local_pattern; |
||
713 | XTransform xtransform; |
||
714 | XRenderPictureAttributes pa; |
||
715 | unsigned mask = 0; |
||
716 | |||
717 | sub = (cairo_surface_subsurface_t *) pattern->surface; |
||
718 | |||
719 | if (sample->x >= 0 && sample->y >= 0 && |
||
720 | sample->x + sample->width <= sub->extents.width && |
||
721 | sample->y + sample->height <= sub->extents.height) |
||
722 | { |
||
723 | src = (cairo_xlib_surface_t *) sub->target; |
||
724 | status = _cairo_surface_flush (&src->base, 0); |
||
725 | if (unlikely (status)) |
||
726 | return _cairo_surface_create_in_error (status); |
||
727 | |||
728 | if (pattern->base.filter == CAIRO_FILTER_NEAREST && |
||
729 | _cairo_matrix_is_translation (&pattern->base.matrix)) |
||
730 | { |
||
731 | *src_x += pattern->base.matrix.x0 + sub->extents.x; |
||
732 | *src_y += pattern->base.matrix.y0 + sub->extents.y; |
||
733 | |||
734 | _cairo_xlib_surface_ensure_picture (src); |
||
735 | return cairo_surface_reference (&src->base); |
||
736 | } |
||
737 | else |
||
738 | { |
||
739 | cairo_surface_pattern_t local_pattern = *pattern; |
||
740 | local_pattern.base.matrix.x0 += sub->extents.x; |
||
741 | local_pattern.base.matrix.y0 += sub->extents.y; |
||
742 | local_pattern.base.extend = CAIRO_EXTEND_NONE; |
||
743 | return embedded_source (dst, &local_pattern, extents, |
||
744 | src_x, src_y, init_source (dst, src)); |
||
745 | } |
||
746 | } |
||
747 | |||
748 | if (sub->snapshot && sub->snapshot->type == CAIRO_SURFACE_TYPE_XLIB) { |
||
749 | src = (cairo_xlib_surface_t *) cairo_surface_reference (sub->snapshot); |
||
750 | source = &src->embedded_source; |
||
751 | } else { |
||
752 | src = (cairo_xlib_surface_t *) |
||
753 | _cairo_surface_create_similar_scratch (&dst->base, |
||
754 | sub->base.content, |
||
755 | sub->extents.width, |
||
756 | sub->extents.height); |
||
757 | if (src->base.type != CAIRO_SURFACE_TYPE_XLIB) { |
||
758 | cairo_surface_destroy (&src->base); |
||
759 | return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); |
||
760 | } |
||
761 | |||
762 | _cairo_pattern_init_for_surface (&local_pattern, sub->target); |
||
763 | cairo_matrix_init_translate (&local_pattern.base.matrix, |
||
764 | sub->extents.x, sub->extents.y); |
||
765 | local_pattern.base.filter = CAIRO_FILTER_NEAREST; |
||
766 | status = _cairo_surface_paint (&src->base, |
||
767 | CAIRO_OPERATOR_SOURCE, |
||
768 | &local_pattern.base, |
||
769 | NULL); |
||
770 | _cairo_pattern_fini (&local_pattern.base); |
||
771 | |||
772 | if (unlikely (status)) { |
||
773 | cairo_surface_destroy (&src->base); |
||
774 | return _cairo_surface_create_in_error (status); |
||
775 | } |
||
776 | |||
777 | _cairo_xlib_surface_ensure_picture (src); |
||
778 | _cairo_surface_subsurface_set_snapshot (&sub->base, &src->base); |
||
779 | |||
780 | source = &src->embedded_source; |
||
781 | source->has_component_alpha = 0; |
||
782 | source->has_matrix = 0; |
||
783 | source->filter = CAIRO_FILTER_NEAREST; |
||
784 | source->extend = CAIRO_EXTEND_NONE; |
||
785 | } |
||
786 | |||
787 | status = _cairo_matrix_to_pixman_matrix_offset (&pattern->base.matrix, |
||
788 | pattern->base.filter, |
||
789 | extents->x + extents->width / 2, |
||
790 | extents->y + extents->height / 2, |
||
791 | (pixman_transform_t *)&xtransform, |
||
792 | src_x, src_y); |
||
793 | if (status == CAIRO_INT_STATUS_NOTHING_TO_DO) { |
||
794 | if (source->has_matrix) { |
||
795 | source->has_matrix = 0; |
||
796 | memcpy (&xtransform, &identity, sizeof (identity)); |
||
797 | status = CAIRO_INT_STATUS_SUCCESS; |
||
798 | } |
||
799 | } else |
||
800 | source->has_matrix = 1; |
||
801 | if (status == CAIRO_INT_STATUS_SUCCESS) |
||
802 | XRenderSetPictureTransform (dpy, src->picture, &xtransform); |
||
803 | |||
804 | if (source->filter != pattern->base.filter) { |
||
805 | picture_set_filter (dpy, src->picture, pattern->base.filter); |
||
806 | source->filter = pattern->base.filter; |
||
807 | } |
||
808 | |||
809 | if (source->has_component_alpha != pattern->base.has_component_alpha) { |
||
810 | pa.component_alpha = pattern->base.has_component_alpha; |
||
811 | mask |= CPComponentAlpha; |
||
812 | source->has_component_alpha = pattern->base.has_component_alpha; |
||
813 | } |
||
814 | |||
815 | if (source->extend != pattern->base.extend) { |
||
816 | pa.repeat = extend_to_repeat (pattern->base.extend); |
||
817 | mask |= CPRepeat; |
||
818 | source->extend = pattern->base.extend; |
||
819 | } |
||
820 | |||
821 | if (mask) |
||
822 | XRenderChangePicture (dpy, src->picture, mask, &pa); |
||
823 | |||
824 | return &src->base; |
||
825 | } |
||
826 | |||
827 | static cairo_surface_t * |
||
828 | native_source (cairo_xlib_surface_t *dst, |
||
829 | const cairo_surface_pattern_t *pattern, |
||
830 | cairo_bool_t is_mask, |
||
831 | const cairo_rectangle_int_t *extents, |
||
832 | const cairo_rectangle_int_t *sample, |
||
833 | int *src_x, int *src_y) |
||
834 | { |
||
835 | cairo_xlib_surface_t *src; |
||
836 | cairo_int_status_t status; |
||
837 | |||
838 | if (_cairo_surface_is_subsurface (pattern->surface)) |
||
839 | return subsurface_source (dst, pattern, is_mask, |
||
840 | extents, sample, |
||
841 | src_x, src_y); |
||
842 | |||
843 | src = unwrap_source (pattern); |
||
844 | status = _cairo_surface_flush (&src->base, 0); |
||
845 | if (unlikely (status)) |
||
846 | return _cairo_surface_create_in_error (status); |
||
847 | |||
848 | if (pattern->base.filter == CAIRO_FILTER_NEAREST && |
||
849 | sample->x >= 0 && sample->y >= 0 && |
||
850 | sample->x + sample->width <= src->width && |
||
851 | sample->y + sample->height <= src->height && |
||
852 | _cairo_matrix_is_translation (&pattern->base.matrix)) |
||
853 | { |
||
854 | *src_x += pattern->base.matrix.x0; |
||
855 | *src_y += pattern->base.matrix.y0; |
||
856 | _cairo_xlib_surface_ensure_picture (src); |
||
857 | return cairo_surface_reference (&src->base); |
||
858 | } |
||
859 | |||
860 | return embedded_source (dst, pattern, extents, src_x, src_y, |
||
861 | init_source (dst, src)); |
||
862 | } |
||
863 | |||
864 | static cairo_surface_t * |
||
865 | recording_pattern_get_surface (const cairo_pattern_t *pattern) |
||
866 | { |
||
867 | cairo_surface_t *surface; |
||
868 | |||
869 | surface = ((const cairo_surface_pattern_t *) pattern)->surface; |
||
870 | if (_cairo_surface_is_paginated (surface)) |
||
871 | surface = _cairo_paginated_surface_get_recording (surface); |
||
872 | if (_cairo_surface_is_snapshot (surface)) |
||
873 | surface = _cairo_surface_snapshot_get_target (surface); |
||
874 | return surface; |
||
875 | } |
||
876 | |||
877 | static cairo_surface_t * |
||
878 | record_source (cairo_xlib_surface_t *dst, |
||
879 | const cairo_surface_pattern_t *pattern, |
||
880 | cairo_bool_t is_mask, |
||
881 | const cairo_rectangle_int_t *extents, |
||
882 | const cairo_rectangle_int_t *sample, |
||
883 | int *src_x, int *src_y) |
||
884 | { |
||
885 | cairo_xlib_surface_t *src; |
||
886 | cairo_matrix_t matrix, m; |
||
887 | cairo_status_t status; |
||
888 | cairo_rectangle_int_t upload, limit; |
||
889 | |||
890 | upload = *sample; |
||
891 | if (_cairo_surface_get_extents (pattern->surface, &limit) && |
||
892 | ! _cairo_rectangle_intersect (&upload, &limit)) |
||
893 | { |
||
894 | if (pattern->base.extend == CAIRO_EXTEND_NONE) |
||
895 | return alpha_source (dst, 0); |
||
896 | |||
897 | upload = limit; |
||
898 | } |
||
899 | |||
900 | src = (cairo_xlib_surface_t *) |
||
901 | _cairo_surface_create_similar_scratch (&dst->base, |
||
902 | pattern->surface->content, |
||
903 | upload.width, |
||
904 | upload.height); |
||
905 | if (src->base.type != CAIRO_SURFACE_TYPE_XLIB) { |
||
906 | cairo_surface_destroy (&src->base); |
||
907 | return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); |
||
908 | } |
||
909 | |||
910 | cairo_matrix_init_translate (&matrix, upload.x, upload.y); |
||
911 | status = _cairo_recording_surface_replay_with_clip (recording_pattern_get_surface (&pattern->base), |
||
912 | &matrix, &src->base, |
||
913 | NULL); |
||
914 | if (unlikely (status)) { |
||
915 | cairo_surface_destroy (&src->base); |
||
916 | return _cairo_surface_create_in_error (status); |
||
917 | } |
||
918 | |||
919 | matrix = pattern->base.matrix; |
||
920 | if (upload.x | upload.y) { |
||
921 | cairo_matrix_init_translate (&m, -upload.x, -upload.y); |
||
922 | cairo_matrix_multiply (&matrix, &matrix, &m); |
||
923 | } |
||
924 | |||
925 | _cairo_xlib_surface_ensure_picture (src); |
||
926 | if (! picture_set_properties (src->display, src->picture, |
||
927 | &pattern->base, &matrix, extents, |
||
928 | src_x, src_y)) |
||
929 | { |
||
930 | cairo_surface_destroy (&src->base); |
||
931 | return render_pattern (dst, &pattern->base, is_mask, |
||
932 | extents, src_x, src_y); |
||
933 | } |
||
934 | |||
935 | return &src->base; |
||
936 | } |
||
937 | |||
938 | static cairo_surface_t * |
||
939 | surface_source (cairo_xlib_surface_t *dst, |
||
940 | const cairo_surface_pattern_t *pattern, |
||
941 | cairo_bool_t is_mask, |
||
942 | const cairo_rectangle_int_t *extents, |
||
943 | const cairo_rectangle_int_t *sample, |
||
944 | int *src_x, int *src_y) |
||
945 | { |
||
946 | cairo_surface_t *src; |
||
947 | cairo_xlib_surface_t *xsrc; |
||
948 | cairo_surface_pattern_t local_pattern; |
||
949 | cairo_status_t status; |
||
950 | cairo_rectangle_int_t upload, limit; |
||
951 | |||
952 | src = pattern->surface; |
||
953 | if (src->type == CAIRO_SURFACE_TYPE_IMAGE && |
||
954 | src->device == dst->base.device && |
||
955 | _cairo_xlib_shm_surface_get_pixmap (src)) { |
||
956 | cairo_xlib_proxy_t *proxy; |
||
957 | |||
958 | proxy = malloc (sizeof(*proxy)); |
||
959 | if (unlikely (proxy == NULL)) |
||
960 | return _cairo_surface_create_in_error (CAIRO_STATUS_NO_MEMORY); |
||
961 | |||
962 | _cairo_surface_init (&proxy->source.base, |
||
963 | &cairo_xlib_proxy_backend, |
||
964 | dst->base.device, |
||
965 | src->content); |
||
966 | |||
967 | proxy->source.dpy = dst->display->display; |
||
968 | proxy->source.picture = XRenderCreatePicture (proxy->source.dpy, |
||
969 | _cairo_xlib_shm_surface_get_pixmap (src), |
||
970 | _cairo_xlib_shm_surface_get_xrender_format (src), |
||
971 | 0, NULL); |
||
972 | proxy->source.pixmap = None; |
||
973 | |||
974 | proxy->source.has_component_alpha = 0; |
||
975 | proxy->source.has_matrix = 0; |
||
976 | proxy->source.filter = CAIRO_FILTER_NEAREST; |
||
977 | proxy->source.extend = CAIRO_EXTEND_NONE; |
||
978 | proxy->owner = cairo_surface_reference (src); |
||
979 | |||
980 | return embedded_source (dst, pattern, extents, src_x, src_y, |
||
981 | &proxy->source); |
||
982 | } |
||
983 | |||
984 | upload = *sample; |
||
985 | if (_cairo_surface_get_extents (pattern->surface, &limit)) { |
||
986 | if (pattern->base.extend == CAIRO_EXTEND_NONE) { |
||
987 | if (! _cairo_rectangle_intersect (&upload, &limit)) |
||
988 | return alpha_source (dst, 0); |
||
989 | } else if (pattern->base.extend == CAIRO_EXTEND_PAD) { |
||
990 | if (! _cairo_rectangle_intersect (&upload, &limit)) |
||
991 | upload = limit; |
||
992 | } else { |
||
993 | if (upload.x < limit.x || |
||
994 | upload.x + upload.width > limit.x + limit.width || |
||
995 | upload.y < limit.y || |
||
996 | upload.y + upload.height > limit.y + limit.height) |
||
997 | { |
||
998 | upload = limit; |
||
999 | } |
||
1000 | } |
||
1001 | } |
||
1002 | |||
1003 | xsrc = (cairo_xlib_surface_t *) |
||
1004 | _cairo_surface_create_similar_scratch (&dst->base, |
||
1005 | src->content, |
||
1006 | upload.width, |
||
1007 | upload.height); |
||
1008 | if (xsrc->base.type != CAIRO_SURFACE_TYPE_XLIB) { |
||
1009 | cairo_surface_destroy (src); |
||
1010 | cairo_surface_destroy (&xsrc->base); |
||
1011 | return _cairo_surface_create_in_error (_cairo_error (CAIRO_STATUS_NO_MEMORY)); |
||
1012 | } |
||
1013 | |||
1014 | if (_cairo_surface_is_image (src)) { |
||
1015 | status = _cairo_xlib_surface_draw_image (xsrc, (cairo_image_surface_t *)src, |
||
1016 | upload.x, upload.y, |
||
1017 | upload.width, upload.height, |
||
1018 | 0, 0); |
||
1019 | } else { |
||
1020 | cairo_image_surface_t *image; |
||
1021 | cairo_rectangle_int_t map_extents = { 0,0, upload.width,upload.height }; |
||
1022 | |||
1023 | image = _cairo_surface_map_to_image (&xsrc->base, &map_extents); |
||
1024 | |||
1025 | _cairo_pattern_init_for_surface (&local_pattern, pattern->surface); |
||
1026 | cairo_matrix_init_translate (&local_pattern.base.matrix, |
||
1027 | upload.x, upload.y); |
||
1028 | |||
1029 | status = _cairo_surface_paint (&image->base, |
||
1030 | CAIRO_OPERATOR_SOURCE, |
||
1031 | &local_pattern.base, |
||
1032 | NULL); |
||
1033 | _cairo_pattern_fini (&local_pattern.base); |
||
1034 | |||
1035 | status = _cairo_surface_unmap_image (&xsrc->base, image); |
||
1036 | if (unlikely (status)) { |
||
1037 | cairo_surface_destroy (&xsrc->base); |
||
1038 | return _cairo_surface_create_in_error (status); |
||
1039 | } |
||
1040 | |||
1041 | status = _cairo_xlib_surface_put_shm (xsrc); |
||
1042 | if (unlikely (status)) { |
||
1043 | cairo_surface_destroy (&xsrc->base); |
||
1044 | return _cairo_surface_create_in_error (status); |
||
1045 | } |
||
1046 | } |
||
1047 | |||
1048 | _cairo_pattern_init_static_copy (&local_pattern.base, &pattern->base); |
||
1049 | if (upload.x | upload.y) { |
||
1050 | cairo_matrix_t m; |
||
1051 | cairo_matrix_init_translate (&m, -upload.x, -upload.y); |
||
1052 | cairo_matrix_multiply (&local_pattern.base.matrix, |
||
1053 | &local_pattern.base.matrix, |
||
1054 | &m); |
||
1055 | } |
||
1056 | |||
1057 | *src_x = *src_y = 0; |
||
1058 | _cairo_xlib_surface_ensure_picture (xsrc); |
||
1059 | if (! picture_set_properties (xsrc->display, |
||
1060 | xsrc->picture, |
||
1061 | &local_pattern.base, |
||
1062 | &local_pattern.base.matrix, |
||
1063 | extents, |
||
1064 | src_x, src_y)) |
||
1065 | { |
||
1066 | cairo_surface_destroy (&xsrc->base); |
||
1067 | return render_pattern (dst, &pattern->base, |
||
1068 | is_mask, extents, |
||
1069 | src_x, src_y); |
||
1070 | } |
||
1071 | |||
1072 | return &xsrc->base; |
||
1073 | } |
||
1074 | |||
1075 | static cairo_bool_t |
||
1076 | pattern_is_supported (cairo_xlib_display_t *display, |
||
1077 | const cairo_pattern_t *pattern) |
||
1078 | { |
||
1079 | if (pattern->type == CAIRO_PATTERN_TYPE_MESH) |
||
1080 | return FALSE; |
||
1081 | |||
1082 | if (display->buggy_pad_reflect) { |
||
1083 | if (pattern->extend == CAIRO_EXTEND_REPEAT || pattern->extend == CAIRO_EXTEND_PAD) |
||
1084 | return FALSE; |
||
1085 | } |
||
1086 | |||
1087 | if (display->buggy_gradients) { |
||
1088 | if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR || pattern->type == CAIRO_PATTERN_TYPE_RADIAL) |
||
1089 | return FALSE; |
||
1090 | } |
||
1091 | |||
1092 | if (! CAIRO_RENDER_HAS_PICTURE_TRANSFORM (display)) { |
||
1093 | if (!_cairo_matrix_is_integer_translation (&pattern->matrix, NULL, NULL)) |
||
1094 | return FALSE; |
||
1095 | } |
||
1096 | |||
1097 | if (! CAIRO_RENDER_HAS_FILTERS (display)) { |
||
1098 | /* No filters implies no transforms, so we optimise away BILINEAR */ |
||
1099 | } |
||
1100 | |||
1101 | return TRUE; |
||
1102 | } |
||
1103 | cairo_surface_t * |
||
1104 | _cairo_xlib_source_create_for_pattern (cairo_surface_t *_dst, |
||
1105 | const cairo_pattern_t *pattern, |
||
1106 | cairo_bool_t is_mask, |
||
1107 | const cairo_rectangle_int_t *extents, |
||
1108 | const cairo_rectangle_int_t *sample, |
||
1109 | int *src_x, int *src_y) |
||
1110 | { |
||
1111 | cairo_xlib_surface_t *dst = (cairo_xlib_surface_t *)_dst; |
||
1112 | |||
1113 | *src_x = *src_y = 0; |
||
1114 | |||
1115 | if (pattern == NULL || pattern->type == CAIRO_PATTERN_TYPE_SOLID) { |
||
1116 | if (pattern == NULL) |
||
1117 | pattern = &_cairo_pattern_white.base; |
||
1118 | |||
1119 | return solid_source (dst, &((cairo_solid_pattern_t *)pattern)->color); |
||
1120 | } |
||
1121 | |||
1122 | if (pattern_is_supported (dst->display, pattern)) { |
||
1123 | if (pattern->type == CAIRO_PATTERN_TYPE_SURFACE) { |
||
1124 | cairo_surface_pattern_t *spattern = (cairo_surface_pattern_t *)pattern; |
||
1125 | if (spattern->surface->type == CAIRO_SURFACE_TYPE_XLIB && |
||
1126 | _cairo_xlib_surface_same_screen (dst, |
||
1127 | unwrap_source (spattern))) |
||
1128 | return native_source (dst, spattern, is_mask, |
||
1129 | extents, sample, |
||
1130 | src_x, src_y); |
||
1131 | |||
1132 | if (spattern->surface->type == CAIRO_SURFACE_TYPE_RECORDING) |
||
1133 | return record_source (dst, spattern, is_mask, |
||
1134 | extents, sample, |
||
1135 | src_x, src_y); |
||
1136 | |||
1137 | return surface_source (dst, spattern, is_mask, |
||
1138 | extents, sample, |
||
1139 | src_x, src_y); |
||
1140 | } |
||
1141 | |||
1142 | if (pattern->type == CAIRO_PATTERN_TYPE_LINEAR || |
||
1143 | pattern->type == CAIRO_PATTERN_TYPE_RADIAL) |
||
1144 | { |
||
1145 | cairo_gradient_pattern_t *gpattern = (cairo_gradient_pattern_t *)pattern; |
||
1146 | return gradient_source (dst, gpattern, is_mask, extents, src_x, src_y); |
||
1147 | } |
||
1148 | } |
||
1149 | |||
1150 | return render_pattern (dst, pattern, is_mask, extents, src_x, src_y); |
||
1151 | } |
||
1152 | |||
1153 | #endif /* !CAIRO_HAS_XLIB_XCB_FUNCTIONS */>>=>=>=>=>=>>><>><>><>><>>><>><>><>><>><>><>><>><>>>><>><>><>><> |