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5564 | serge | 1 | /* |
2 | Copyright (c) 2009 Apple Inc. |
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3 | |||
4 | Permission is hereby granted, free of charge, to any person |
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5 | obtaining a copy of this software and associated documentation files |
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6 | (the "Software"), to deal in the Software without restriction, |
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7 | including without limitation the rights to use, copy, modify, merge, |
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8 | publish, distribute, sublicense, and/or sell copies of the Software, |
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9 | and to permit persons to whom the Software is furnished to do so, |
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10 | subject to the following conditions: |
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11 | |||
12 | The above copyright notice and this permission notice shall be |
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13 | included in all copies or substantial portions of the Software. |
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14 | |||
15 | THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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16 | EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF |
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17 | MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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18 | NONINFRINGEMENT. IN NO EVENT SHALL THE ABOVE LISTED COPYRIGHT |
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19 | HOLDER(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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20 | WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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21 | OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER |
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22 | DEALINGS IN THE SOFTWARE. |
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23 | |||
24 | Except as contained in this notice, the name(s) of the above |
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25 | copyright holders shall not be used in advertising or otherwise to |
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26 | promote the sale, use or other dealings in this Software without |
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27 | prior written authorization. |
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28 | */ |
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29 | |||
30 | #include |
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31 | #include |
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32 | #include |
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33 | #include |
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34 | #include |
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35 | #include |
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36 | #include |
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37 | #include |
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38 | #include "apple_glx.h" |
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39 | #include "apple_cgl.h" |
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40 | #include "apple_visual.h" |
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41 | #include "apple_glx_drawable.h" |
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42 | #include "appledri.h" |
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43 | #include "glxconfig.h" |
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44 | |||
45 | static bool pixmap_make_current(struct apple_glx_context *ac, |
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46 | struct apple_glx_drawable *d); |
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47 | |||
48 | static void pixmap_destroy(Display * dpy, struct apple_glx_drawable *d); |
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49 | |||
50 | static struct apple_glx_drawable_callbacks callbacks = { |
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51 | .type = APPLE_GLX_DRAWABLE_PIXMAP, |
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52 | .make_current = pixmap_make_current, |
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53 | .destroy = pixmap_destroy |
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54 | }; |
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55 | |||
56 | static bool |
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57 | pixmap_make_current(struct apple_glx_context *ac, |
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58 | struct apple_glx_drawable *d) |
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59 | { |
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60 | CGLError cglerr; |
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61 | struct apple_glx_pixmap *p = &d->types.pixmap; |
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62 | |||
63 | assert(APPLE_GLX_DRAWABLE_PIXMAP == d->type); |
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64 | |||
65 | cglerr = apple_cgl.set_current_context(p->context_obj); |
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66 | |||
67 | if (kCGLNoError != cglerr) { |
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68 | fprintf(stderr, "set current context: %s\n", |
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69 | apple_cgl.error_string(cglerr)); |
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70 | return true; |
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71 | } |
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72 | |||
73 | cglerr = apple_cgl.set_off_screen(p->context_obj, p->width, p->height, |
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74 | p->pitch, p->buffer); |
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75 | |||
76 | if (kCGLNoError != cglerr) { |
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77 | fprintf(stderr, "set off screen: %s\n", apple_cgl.error_string(cglerr)); |
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78 | |||
79 | return true; |
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80 | } |
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81 | |||
82 | if (!ac->made_current) { |
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83 | apple_glapi_oglfw_viewport_scissor(0, 0, p->width, p->height); |
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84 | ac->made_current = true; |
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85 | } |
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86 | |||
87 | return false; |
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88 | } |
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89 | |||
90 | static void |
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91 | pixmap_destroy(Display * dpy, struct apple_glx_drawable *d) |
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92 | { |
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93 | struct apple_glx_pixmap *p = &d->types.pixmap; |
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94 | |||
95 | if (p->pixel_format_obj) |
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96 | (void) apple_cgl.destroy_pixel_format(p->pixel_format_obj); |
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97 | |||
98 | if (p->context_obj) |
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99 | (void) apple_cgl.destroy_context(p->context_obj); |
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100 | |||
101 | XAppleDRIDestroyPixmap(dpy, p->xpixmap); |
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102 | |||
103 | if (p->buffer) { |
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104 | if (munmap(p->buffer, p->size)) |
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105 | perror("munmap"); |
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106 | |||
107 | if (-1 == close(p->fd)) |
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108 | perror("close"); |
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109 | |||
110 | if (shm_unlink(p->path)) |
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111 | perror("shm_unlink"); |
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112 | } |
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113 | |||
114 | apple_glx_diagnostic("destroyed pixmap buffer for: 0x%lx\n", d->drawable); |
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115 | } |
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116 | |||
117 | /* Return true if an error occurred. */ |
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118 | bool |
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119 | apple_glx_pixmap_create(Display * dpy, int screen, Pixmap pixmap, |
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120 | const void *mode) |
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121 | { |
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122 | struct apple_glx_drawable *d; |
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123 | struct apple_glx_pixmap *p; |
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124 | bool double_buffered; |
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125 | bool uses_stereo; |
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126 | CGLError error; |
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127 | const struct glx_config *cmodes = mode; |
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128 | |||
129 | if (apple_glx_drawable_create(dpy, screen, pixmap, &d, &callbacks)) |
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130 | return true; |
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131 | |||
132 | /* d is locked and referenced at this point. */ |
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133 | |||
134 | p = &d->types.pixmap; |
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135 | |||
136 | p->xpixmap = pixmap; |
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137 | p->buffer = NULL; |
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138 | |||
139 | if (!XAppleDRICreatePixmap(dpy, screen, pixmap, |
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140 | &p->width, &p->height, &p->pitch, &p->bpp, |
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141 | &p->size, p->path, PATH_MAX)) { |
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142 | d->unlock(d); |
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143 | d->destroy(d); |
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144 | return true; |
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145 | } |
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146 | |||
147 | p->fd = shm_open(p->path, O_RDWR, 0); |
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148 | |||
149 | if (p->fd < 0) { |
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150 | perror("shm_open"); |
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151 | d->unlock(d); |
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152 | d->destroy(d); |
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153 | return true; |
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154 | } |
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155 | |||
156 | p->buffer = mmap(NULL, p->size, PROT_READ | PROT_WRITE, |
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157 | MAP_FILE | MAP_SHARED, p->fd, 0); |
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158 | |||
159 | if (MAP_FAILED == p->buffer) { |
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160 | perror("mmap"); |
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161 | d->unlock(d); |
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162 | d->destroy(d); |
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163 | return true; |
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164 | } |
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165 | |||
166 | apple_visual_create_pfobj(&p->pixel_format_obj, mode, &double_buffered, |
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167 | &uses_stereo, /*offscreen */ true); |
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168 | |||
169 | error = apple_cgl.create_context(p->pixel_format_obj, NULL, |
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170 | &p->context_obj); |
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171 | |||
172 | if (kCGLNoError != error) { |
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173 | d->unlock(d); |
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174 | d->destroy(d); |
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175 | return true; |
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176 | } |
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177 | |||
178 | p->fbconfigID = cmodes->fbconfigID; |
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179 | |||
180 | d->unlock(d); |
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181 | |||
182 | apple_glx_diagnostic("created: pixmap buffer for 0x%lx\n", d->drawable); |
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183 | |||
184 | return false; |
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185 | } |
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186 | |||
187 | bool |
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188 | apple_glx_pixmap_query(GLXPixmap pixmap, int attr, unsigned int *value) |
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189 | { |
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190 | struct apple_glx_drawable *d; |
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191 | struct apple_glx_pixmap *p; |
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192 | bool result = false; |
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193 | |||
194 | d = apple_glx_drawable_find_by_type(pixmap, APPLE_GLX_DRAWABLE_PIXMAP, |
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195 | APPLE_GLX_DRAWABLE_LOCK); |
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196 | |||
197 | if (d) { |
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198 | p = &d->types.pixmap; |
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199 | |||
200 | switch (attr) { |
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201 | case GLX_WIDTH: |
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202 | *value = p->width; |
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203 | result = true; |
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204 | break; |
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205 | |||
206 | case GLX_HEIGHT: |
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207 | *value = p->height; |
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208 | result = true; |
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209 | break; |
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210 | |||
211 | case GLX_FBCONFIG_ID: |
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212 | *value = p->fbconfigID; |
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213 | result = true; |
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214 | break; |
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215 | } |
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216 | |||
217 | d->unlock(d); |
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218 | } |
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219 | |||
220 | return result; |
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221 | } |
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222 | |||
223 | /* Return true if the type is valid for pixmap. */ |
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224 | bool |
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225 | apple_glx_pixmap_destroy(Display * dpy, GLXPixmap pixmap) |
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226 | { |
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227 | return !apple_glx_drawable_destroy_by_type(dpy, pixmap, |
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228 | APPLE_GLX_DRAWABLE_PIXMAP); |
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229 | }> |