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egl/gbm: Fix EGL_DEFAULT_DISPLAY
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include <stdio.h>
31 #include <limits.h>
32 #include <dlfcn.h>
33 #include <fcntl.h>
34 #include <errno.h>
35 #include <unistd.h>
36 #include <xf86drm.h>
37 #include <GL/gl.h>
38 #include <GL/internal/dri_interface.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41
42 #include "egl_dri2.h"
43
44 const __DRIuseInvalidateExtension use_invalidate = {
45 { __DRI_USE_INVALIDATE, 1 }
46 };
47
48 EGLint dri2_to_egl_attribute_map[] = {
49 0,
50 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
51 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
52 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
53 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
54 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
55 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
56 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
57 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
58 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
59 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
60 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
61 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
62 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
63 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
64 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
65 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
66 0, /* __DRI_ATTRIB_RENDER_TYPE, */
67 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
68 0, /* __DRI_ATTRIB_CONFORMANT */
69 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
70 0, /* __DRI_ATTRIB_STEREO */
71 0, /* __DRI_ATTRIB_AUX_BUFFERS */
72 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
73 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
74 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
75 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
76 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
77 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
78 0, /* __DRI_ATTRIB_FLOAT_MODE */
79 0, /* __DRI_ATTRIB_RED_MASK */
80 0, /* __DRI_ATTRIB_GREEN_MASK */
81 0, /* __DRI_ATTRIB_BLUE_MASK */
82 0, /* __DRI_ATTRIB_ALPHA_MASK */
83 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
84 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
85 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
86 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
87 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
88 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
89 0, /* __DRI_ATTRIB_SWAP_METHOD */
90 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
91 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
92 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
93 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
94 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
95 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
96 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
97 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
98 };
99
100 static EGLBoolean
101 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
102 {
103 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
104 return EGL_FALSE;
105
106 if (!_eglMatchConfig(conf, criteria))
107 return EGL_FALSE;
108
109 return EGL_TRUE;
110 }
111
112 struct dri2_egl_config *
113 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
114 int depth, EGLint surface_type, const EGLint *attr_list)
115 {
116 struct dri2_egl_config *conf;
117 struct dri2_egl_display *dri2_dpy;
118 _EGLConfig base;
119 unsigned int attrib, value, double_buffer;
120 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
121 _EGLConfig *matching_config;
122 EGLint num_configs = 0;
123 EGLint config_id;
124 int i;
125
126 dri2_dpy = disp->DriverData;
127 _eglInitConfig(&base, disp, id);
128
129 i = 0;
130 double_buffer = 0;
131 bind_to_texture_rgb = 0;
132 bind_to_texture_rgba = 0;
133
134 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
135 switch (attrib) {
136 case __DRI_ATTRIB_RENDER_TYPE:
137 if (value & __DRI_ATTRIB_RGBA_BIT)
138 value = EGL_RGB_BUFFER;
139 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
140 value = EGL_LUMINANCE_BUFFER;
141 else
142 /* not valid */;
143 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
144 break;
145
146 case __DRI_ATTRIB_CONFIG_CAVEAT:
147 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
148 value = EGL_NON_CONFORMANT_CONFIG;
149 else if (value & __DRI_ATTRIB_SLOW_BIT)
150 value = EGL_SLOW_CONFIG;
151 else
152 value = EGL_NONE;
153 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
154 break;
155
156 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
157 bind_to_texture_rgb = value;
158 break;
159
160 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
161 bind_to_texture_rgba = value;
162 break;
163
164 case __DRI_ATTRIB_DOUBLE_BUFFER:
165 double_buffer = value;
166 break;
167
168 default:
169 key = dri2_to_egl_attribute_map[attrib];
170 if (key != 0)
171 _eglSetConfigKey(&base, key, value);
172 break;
173 }
174 }
175
176 if (attr_list)
177 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
178 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
179
180 if (depth > 0 && depth != base.BufferSize)
181 return NULL;
182
183 base.NativeRenderable = EGL_TRUE;
184
185 base.SurfaceType = surface_type;
186 if (surface_type & (EGL_PBUFFER_BIT |
187 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
188 base.BindToTextureRGB = bind_to_texture_rgb;
189 if (base.AlphaSize > 0)
190 base.BindToTextureRGBA = bind_to_texture_rgba;
191 }
192
193 base.RenderableType = disp->ClientAPIs;
194 base.Conformant = disp->ClientAPIs;
195
196 if (!_eglValidateConfig(&base, EGL_FALSE)) {
197 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
198 return NULL;
199 }
200
201 config_id = base.ConfigID;
202 base.ConfigID = EGL_DONT_CARE;
203 base.SurfaceType = EGL_DONT_CARE;
204 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
205 (_EGLArrayForEach) dri2_match_config, &base);
206
207 if (num_configs == 1) {
208 conf = (struct dri2_egl_config *) matching_config;
209
210 if (double_buffer && !conf->dri_double_config)
211 conf->dri_double_config = dri_config;
212 else if (!double_buffer && !conf->dri_single_config)
213 conf->dri_single_config = dri_config;
214 else
215 /* a similar config type is already added (unlikely) => discard */
216 return NULL;
217 }
218 else if (num_configs == 0) {
219 conf = malloc(sizeof *conf);
220 if (conf == NULL)
221 return NULL;
222
223 memcpy(&conf->base, &base, sizeof base);
224 if (double_buffer) {
225 conf->dri_double_config = dri_config;
226 conf->dri_single_config = NULL;
227 } else {
228 conf->dri_single_config = dri_config;
229 conf->dri_double_config = NULL;
230 }
231 conf->base.SurfaceType = 0;
232 conf->base.ConfigID = config_id;
233
234 _eglLinkConfig(&conf->base);
235 }
236 else {
237 assert(0);
238 return NULL;
239 }
240
241 conf->base.SurfaceType |= surface_type & (!double_buffer ? EGL_PIXMAP_BIT:
242 (EGL_WINDOW_BIT | EGL_PBUFFER_BIT | EGL_SWAP_BEHAVIOR_PRESERVED_BIT));
243
244 return conf;
245 }
246
247 __DRIimage *
248 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
249 {
250 _EGLDisplay *disp = data;
251 struct dri2_egl_image *dri2_img;
252 _EGLImage *img;
253
254 (void) screen;
255
256 img = _eglLookupImage(image, disp);
257 if (img == NULL) {
258 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
259 return NULL;
260 }
261
262 dri2_img = dri2_egl_image(image);
263
264 return dri2_img->dri_image;
265 }
266
267 const __DRIimageLookupExtension image_lookup_extension = {
268 { __DRI_IMAGE_LOOKUP, 1 },
269 dri2_lookup_egl_image
270 };
271
272 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
273
274 struct dri2_extension_match {
275 const char *name;
276 int version;
277 int offset;
278 };
279
280 static struct dri2_extension_match dri2_driver_extensions[] = {
281 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
282 { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
283 { NULL, 0, 0 }
284 };
285
286 static struct dri2_extension_match dri2_core_extensions[] = {
287 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
288 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
289 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
290 { NULL, 0, 0 }
291 };
292
293 static struct dri2_extension_match swrast_driver_extensions[] = {
294 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
295 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
296 { NULL }
297 };
298
299 static struct dri2_extension_match swrast_core_extensions[] = {
300 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
301 { NULL }
302 };
303
304 static EGLBoolean
305 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
306 struct dri2_extension_match *matches,
307 const __DRIextension **extensions)
308 {
309 int i, j, ret = EGL_TRUE;
310 void *field;
311
312 for (i = 0; extensions[i]; i++) {
313 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
314 for (j = 0; matches[j].name; j++) {
315 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
316 extensions[i]->version >= matches[j].version) {
317 field = ((char *) dri2_dpy + matches[j].offset);
318 *(const __DRIextension **) field = extensions[i];
319 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
320 extensions[i]->name, extensions[i]->version);
321 }
322 }
323 }
324
325 for (j = 0; matches[j].name; j++) {
326 field = ((char *) dri2_dpy + matches[j].offset);
327 if (*(const __DRIextension **) field == NULL) {
328 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
329 matches[j].name, matches[j].version);
330 ret = EGL_FALSE;
331 }
332 }
333
334 return ret;
335 }
336
337 static const __DRIextension **
338 dri2_open_driver(_EGLDisplay *disp)
339 {
340 struct dri2_egl_display *dri2_dpy = disp->DriverData;
341 const __DRIextension **extensions;
342 char path[PATH_MAX], *search_paths, *p, *next, *end;
343
344 search_paths = NULL;
345 if (geteuid() == getuid()) {
346 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
347 search_paths = getenv("LIBGL_DRIVERS_PATH");
348 }
349 if (search_paths == NULL)
350 search_paths = DEFAULT_DRIVER_DIR;
351
352 dri2_dpy->driver = NULL;
353 end = search_paths + strlen(search_paths);
354 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
355 int len;
356 next = strchr(p, ':');
357 if (next == NULL)
358 next = end;
359
360 len = next - p;
361 #if GLX_USE_TLS
362 snprintf(path, sizeof path,
363 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
364 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
365 #endif
366 if (dri2_dpy->driver == NULL) {
367 snprintf(path, sizeof path,
368 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
369 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
370 if (dri2_dpy->driver == NULL)
371 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
372 }
373 }
374
375 if (dri2_dpy->driver == NULL) {
376 _eglLog(_EGL_WARNING,
377 "DRI2: failed to open %s (search paths %s)",
378 dri2_dpy->driver_name, search_paths);
379 return NULL;
380 }
381
382 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
383 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
384 if (extensions == NULL) {
385 _eglLog(_EGL_WARNING,
386 "DRI2: driver exports no extensions (%s)", dlerror());
387 dlclose(dri2_dpy->driver);
388 }
389
390 return extensions;
391 }
392
393 EGLBoolean
394 dri2_load_driver(_EGLDisplay *disp)
395 {
396 struct dri2_egl_display *dri2_dpy = disp->DriverData;
397 const __DRIextension **extensions;
398
399 extensions = dri2_open_driver(disp);
400 if (!extensions)
401 return EGL_FALSE;
402
403 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
404 dlclose(dri2_dpy->driver);
405 return EGL_FALSE;
406 }
407
408 return EGL_TRUE;
409 }
410
411 EGLBoolean
412 dri2_load_driver_swrast(_EGLDisplay *disp)
413 {
414 struct dri2_egl_display *dri2_dpy = disp->DriverData;
415 const __DRIextension **extensions;
416
417 dri2_dpy->driver_name = "swrast";
418 extensions = dri2_open_driver(disp);
419
420 if (!extensions)
421 return EGL_FALSE;
422
423 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
424 dlclose(dri2_dpy->driver);
425 return EGL_FALSE;
426 }
427
428 return EGL_TRUE;
429 }
430
431 void
432 dri2_setup_screen(_EGLDisplay *disp)
433 {
434 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
435 unsigned int api_mask;
436
437 if (dri2_dpy->dri2) {
438 if (dri2_dpy->dri2->base.version >= 2)
439 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
440 else
441 api_mask = 1 << __DRI_API_OPENGL;
442 } else {
443 assert(dri2_dpy->swrast);
444 if (dri2_dpy->swrast->base.version >= 2)
445 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
446 else
447 api_mask = 1 << __DRI_API_OPENGL;
448 }
449
450 disp->ClientAPIs = 0;
451 if (api_mask & (1 <<__DRI_API_OPENGL))
452 disp->ClientAPIs |= EGL_OPENGL_BIT;
453 if (api_mask & (1 <<__DRI_API_GLES))
454 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
455 if (api_mask & (1 << __DRI_API_GLES2))
456 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
457
458 if (dri2_dpy->dri2) {
459 if (dri2_dpy->dri2->base.version >= 2) {
460 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
461 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
462 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
463 }
464 } else {
465 assert(dri2_dpy->swrast);
466 if (dri2_dpy->swrast->base.version >= 2) {
467 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
468 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
469 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
470 }
471 }
472
473 if (dri2_dpy->image) {
474 disp->Extensions.MESA_drm_image = EGL_TRUE;
475 disp->Extensions.KHR_image_base = EGL_TRUE;
476 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
477 }
478 }
479
480 EGLBoolean
481 dri2_create_screen(_EGLDisplay *disp)
482 {
483 const __DRIextension **extensions;
484 struct dri2_egl_display *dri2_dpy;
485
486 dri2_dpy = disp->DriverData;
487
488 if (dri2_dpy->dri2) {
489 dri2_dpy->dri_screen =
490 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
491 &dri2_dpy->driver_configs, disp);
492 } else {
493 assert(dri2_dpy->swrast);
494 dri2_dpy->dri_screen =
495 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
496 &dri2_dpy->driver_configs, disp);
497 }
498
499 if (dri2_dpy->dri_screen == NULL) {
500 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
501 return EGL_FALSE;
502 }
503
504 dri2_dpy->own_dri_screen = 1;
505
506 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
507
508 if (dri2_dpy->dri2) {
509 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
510 goto cleanup_dri_screen;
511 } else {
512 assert(dri2_dpy->swrast);
513 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
514 goto cleanup_dri_screen;
515 }
516
517 dri2_setup_screen(disp);
518
519 return EGL_TRUE;
520
521 cleanup_dri_screen:
522 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
523
524 return EGL_FALSE;
525 }
526
527 /**
528 * Called via eglInitialize(), GLX_drv->API.Initialize().
529 */
530 static EGLBoolean
531 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
532 {
533 /* not until swrast_dri is supported */
534 if (disp->Options.UseFallback)
535 return EGL_FALSE;
536
537 switch (disp->Platform) {
538 #ifdef HAVE_X11_PLATFORM
539 case _EGL_PLATFORM_X11:
540 if (disp->Options.TestOnly)
541 return EGL_TRUE;
542 return dri2_initialize_x11(drv, disp);
543 #endif
544
545 #ifdef HAVE_LIBUDEV
546 #ifdef HAVE_DRM_PLATFORM
547 case _EGL_PLATFORM_DRM:
548 if (disp->Options.TestOnly)
549 return EGL_TRUE;
550 return dri2_initialize_drm(drv, disp);
551 #endif
552 #ifdef HAVE_WAYLAND_PLATFORM
553 case _EGL_PLATFORM_WAYLAND:
554 if (disp->Options.TestOnly)
555 return EGL_TRUE;
556 return dri2_initialize_wayland(drv, disp);
557 #endif
558 #endif
559
560 default:
561 return EGL_FALSE;
562 }
563 }
564
565 /**
566 * Called via eglTerminate(), drv->API.Terminate().
567 */
568 static EGLBoolean
569 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
570 {
571 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
572
573 _eglReleaseDisplayResources(drv, disp);
574 _eglCleanupDisplay(disp);
575
576 if (dri2_dpy->own_dri_screen)
577 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
578 if (dri2_dpy->fd)
579 close(dri2_dpy->fd);
580 if (dri2_dpy->driver)
581 dlclose(dri2_dpy->driver);
582
583 if (disp->PlatformDisplay == NULL) {
584 switch (disp->Platform) {
585 #ifdef HAVE_X11_PLATFORM
586 case _EGL_PLATFORM_X11:
587 xcb_disconnect(dri2_dpy->conn);
588 break;
589 #endif
590 #ifdef HAVE_WAYLAND_PLATFORM
591 case _EGL_PLATFORM_WAYLAND:
592 wl_display_destroy(dri2_dpy->wl_dpy);
593 break;
594 #endif
595 #ifdef HAVE_DRM_PLATFORM
596 case _EGL_PLATFORM_DRM:
597 if (dri2_dpy->own_gbm_device) {
598 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
599 }
600 break;
601 #endif
602 default:
603 break;
604 }
605 }
606
607 free(dri2_dpy);
608 disp->DriverData = NULL;
609
610 return EGL_TRUE;
611 }
612
613
614 /**
615 * Called via eglCreateContext(), drv->API.CreateContext().
616 */
617 static _EGLContext *
618 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
619 _EGLContext *share_list, const EGLint *attrib_list)
620 {
621 struct dri2_egl_context *dri2_ctx;
622 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
623 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
624 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
625 const __DRIconfig *dri_config;
626 int api;
627
628 (void) drv;
629
630 dri2_ctx = malloc(sizeof *dri2_ctx);
631 if (!dri2_ctx) {
632 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
633 return NULL;
634 }
635
636 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
637 goto cleanup;
638
639 switch (dri2_ctx->base.ClientAPI) {
640 case EGL_OPENGL_ES_API:
641 switch (dri2_ctx->base.ClientVersion) {
642 case 1:
643 api = __DRI_API_GLES;
644 break;
645 case 2:
646 api = __DRI_API_GLES2;
647 break;
648 default:
649 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
650 return NULL;
651 }
652 break;
653 case EGL_OPENGL_API:
654 api = __DRI_API_OPENGL;
655 break;
656 default:
657 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
658 return NULL;
659 }
660
661 if (conf != NULL) {
662 /* The config chosen here isn't necessarily
663 * used for surfaces later.
664 * A pixmap surface will use the single config.
665 * This opportunity depends on disabling the
666 * doubleBufferMode check in
667 * src/mesa/main/context.c:check_compatible()
668 */
669 if (dri2_config->dri_double_config)
670 dri_config = dri2_config->dri_double_config;
671 else
672 dri_config = dri2_config->dri_single_config;
673 }
674 else
675 dri_config = NULL;
676
677 if (dri2_dpy->dri2) {
678 if (dri2_dpy->dri2->base.version >= 2) {
679 dri2_ctx->dri_context =
680 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
681 api,
682 dri_config,
683 dri2_ctx_shared ?
684 dri2_ctx_shared->dri_context : NULL,
685 dri2_ctx);
686 } else if (api == __DRI_API_OPENGL) {
687 dri2_ctx->dri_context =
688 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
689 dri_config,
690 dri2_ctx_shared ?
691 dri2_ctx_shared->dri_context : NULL,
692 dri2_ctx);
693 } else {
694 /* fail */
695 }
696 } else {
697 assert(dri2_dpy->swrast);
698 if (dri2_dpy->swrast->base.version >= 2) {
699 dri2_ctx->dri_context =
700 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
701 api,
702 dri_config,
703 dri2_ctx_shared ?
704 dri2_ctx_shared->dri_context : NULL,
705 dri2_ctx);
706 } else if (api == __DRI_API_OPENGL) {
707 dri2_ctx->dri_context =
708 dri2_dpy->core->createNewContext(dri2_dpy->dri_screen,
709 dri_config,
710 dri2_ctx_shared ?
711 dri2_ctx_shared->dri_context : NULL,
712 dri2_ctx);
713 } else {
714 /* fail */
715 }
716 }
717
718 if (!dri2_ctx->dri_context)
719 goto cleanup;
720
721 return &dri2_ctx->base;
722
723 cleanup:
724 free(dri2_ctx);
725 return NULL;
726 }
727
728 /**
729 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
730 */
731 static EGLBoolean
732 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
733 _EGLSurface *rsurf, _EGLContext *ctx)
734 {
735 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
736 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
737 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
738 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
739 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
740 _EGLContext *old_ctx;
741 _EGLSurface *old_dsurf, *old_rsurf;
742 __DRIdrawable *ddraw, *rdraw;
743 __DRIcontext *cctx;
744
745 /* make new bindings */
746 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
747 return EGL_FALSE;
748
749 /* flush before context switch */
750 if (old_ctx && dri2_drv->glFlush)
751 dri2_drv->glFlush();
752
753 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
754 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
755 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
756
757 if (old_ctx) {
758 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
759 dri2_dpy->core->unbindContext(old_cctx);
760 }
761
762 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
763 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
764 if (old_dsurf)
765 drv->API.DestroySurface(drv, disp, old_dsurf);
766 if (old_rsurf)
767 drv->API.DestroySurface(drv, disp, old_rsurf);
768 /* no destroy? */
769 if (old_ctx)
770 _eglPutContext(old_ctx);
771
772 return EGL_TRUE;
773 } else {
774 /* undo the previous _eglBindContext */
775 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
776 assert(&dri2_ctx->base == ctx &&
777 &dri2_dsurf->base == dsurf &&
778 &dri2_rsurf->base == rsurf);
779
780 _eglPutSurface(dsurf);
781 _eglPutSurface(rsurf);
782 _eglPutContext(ctx);
783
784 _eglPutSurface(old_dsurf);
785 _eglPutSurface(old_rsurf);
786 _eglPutContext(old_ctx);
787
788 return EGL_FALSE;
789 }
790 }
791
792 /*
793 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
794 */
795 static _EGLProc
796 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
797 {
798 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
799
800 return dri2_drv->get_proc_address(procname);
801 }
802
803 static EGLBoolean
804 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
805 {
806 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
807 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
808
809 (void) drv;
810
811 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
812 * we need to copy fake to real here.*/
813
814 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
815
816 return EGL_TRUE;
817 }
818
819 static EGLBoolean
820 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
821 {
822 (void) drv;
823 (void) disp;
824
825 if (engine != EGL_CORE_NATIVE_ENGINE)
826 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
827 /* glXWaitX(); */
828
829 return EGL_TRUE;
830 }
831
832 static EGLBoolean
833 dri2_bind_tex_image(_EGLDriver *drv,
834 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
835 {
836 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
837 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
838 struct dri2_egl_context *dri2_ctx;
839 _EGLContext *ctx;
840 GLint format, target;
841
842 ctx = _eglGetCurrentContext();
843 dri2_ctx = dri2_egl_context(ctx);
844
845 if (!_eglBindTexImage(drv, disp, surf, buffer))
846 return EGL_FALSE;
847
848 switch (dri2_surf->base.TextureFormat) {
849 case EGL_TEXTURE_RGB:
850 format = __DRI_TEXTURE_FORMAT_RGB;
851 break;
852 case EGL_TEXTURE_RGBA:
853 format = __DRI_TEXTURE_FORMAT_RGBA;
854 break;
855 default:
856 assert(0);
857 }
858
859 switch (dri2_surf->base.TextureTarget) {
860 case EGL_TEXTURE_2D:
861 target = GL_TEXTURE_2D;
862 break;
863 default:
864 assert(0);
865 }
866
867 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
868 target, format,
869 dri2_surf->dri_drawable);
870
871 return EGL_TRUE;
872 }
873
874 static EGLBoolean
875 dri2_release_tex_image(_EGLDriver *drv,
876 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
877 {
878 #if __DRI_TEX_BUFFER_VERSION >= 3
879 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
880 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
881 struct dri2_egl_context *dri2_ctx;
882 _EGLContext *ctx;
883 GLint target;
884
885 ctx = _eglGetCurrentContext();
886 dri2_ctx = dri2_egl_context(ctx);
887
888 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
889 return EGL_FALSE;
890
891 switch (dri2_surf->base.TextureTarget) {
892 case EGL_TEXTURE_2D:
893 target = GL_TEXTURE_2D;
894 break;
895 default:
896 assert(0);
897 }
898 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
899 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
900 target,
901 dri2_surf->dri_drawable);
902 #endif
903
904 return EGL_TRUE;
905 }
906
907 static _EGLImage *
908 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
909 EGLClientBuffer buffer,
910 const EGLint *attr_list)
911 {
912 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
913 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
914 struct dri2_egl_image *dri2_img;
915 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
916
917 if (renderbuffer == 0) {
918 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
919 return EGL_NO_IMAGE_KHR;
920 }
921
922 dri2_img = malloc(sizeof *dri2_img);
923 if (!dri2_img) {
924 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
925 return EGL_NO_IMAGE_KHR;
926 }
927
928 if (!_eglInitImage(&dri2_img->base, disp)) {
929 free(dri2_img);
930 return EGL_NO_IMAGE_KHR;
931 }
932
933 dri2_img->dri_image =
934 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
935 renderbuffer,
936 dri2_img);
937
938 return &dri2_img->base;
939 }
940
941 static _EGLImage *
942 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
943 EGLClientBuffer buffer, const EGLint *attr_list)
944 {
945 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
946 struct dri2_egl_image *dri2_img;
947 EGLint format, name, pitch, err;
948 _EGLImageAttribs attrs;
949
950 (void) ctx;
951
952 name = (EGLint) (uintptr_t) buffer;
953
954 err = _eglParseImageAttribList(&attrs, disp, attr_list);
955 if (err != EGL_SUCCESS)
956 return NULL;
957
958 if (attrs.Width <= 0 || attrs.Height <= 0 ||
959 attrs.DRMBufferStrideMESA <= 0) {
960 _eglError(EGL_BAD_PARAMETER,
961 "bad width, height or stride");
962 return NULL;
963 }
964
965 switch (attrs.DRMBufferFormatMESA) {
966 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
967 format = __DRI_IMAGE_FORMAT_ARGB8888;
968 pitch = attrs.DRMBufferStrideMESA;
969 break;
970 default:
971 _eglError(EGL_BAD_PARAMETER,
972 "dri2_create_image_khr: unsupported pixmap depth");
973 return NULL;
974 }
975
976 dri2_img = malloc(sizeof *dri2_img);
977 if (!dri2_img) {
978 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
979 return NULL;
980 }
981
982 if (!_eglInitImage(&dri2_img->base, disp)) {
983 free(dri2_img);
984 return NULL;
985 }
986
987 dri2_img->dri_image =
988 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
989 attrs.Width,
990 attrs.Height,
991 format,
992 name,
993 pitch,
994 dri2_img);
995 if (dri2_img->dri_image == NULL) {
996 free(dri2_img);
997 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
998 return NULL;
999 }
1000
1001 return &dri2_img->base;
1002 }
1003
1004 #ifdef HAVE_WAYLAND_PLATFORM
1005 static _EGLImage *
1006 dri2_reference_drm_image(_EGLDisplay *disp, _EGLContext *ctx,
1007 __DRIimage *dri_image, EGLint width, EGLint height)
1008 {
1009 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1010 EGLint attr_list[] = {
1011 EGL_WIDTH, 0,
1012 EGL_HEIGHT, 0,
1013 EGL_DRM_BUFFER_STRIDE_MESA, 0,
1014 EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
1015 EGL_NONE
1016 };
1017 EGLint name, stride;
1018
1019 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_NAME, &name);
1020 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
1021
1022 attr_list[1] = width;
1023 attr_list[3] = height;
1024 attr_list[5] = stride / 4;
1025
1026 return dri2_create_image_mesa_drm_buffer(disp, ctx,
1027 (EGLClientBuffer)(intptr_t) name,
1028 attr_list);
1029 }
1030
1031 static _EGLImage *
1032 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1033 EGLClientBuffer _buffer,
1034 const EGLint *attr_list)
1035 {
1036 struct wl_buffer *buffer = (struct wl_buffer *) _buffer;
1037 (void) attr_list;
1038
1039 if (!wayland_buffer_is_drm(buffer))
1040 return NULL;
1041
1042 return dri2_reference_drm_image(disp, ctx,
1043 wayland_drm_buffer_get_buffer(buffer),
1044 buffer->width,
1045 buffer->height);
1046 }
1047 #endif
1048
1049 _EGLImage *
1050 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1051 _EGLContext *ctx, EGLenum target,
1052 EGLClientBuffer buffer, const EGLint *attr_list)
1053 {
1054 (void) drv;
1055
1056 switch (target) {
1057 case EGL_GL_RENDERBUFFER_KHR:
1058 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1059 case EGL_DRM_BUFFER_MESA:
1060 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1061 #ifdef HAVE_WAYLAND_PLATFORM
1062 case EGL_WAYLAND_BUFFER_WL:
1063 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1064 #endif
1065 default:
1066 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1067 return EGL_NO_IMAGE_KHR;
1068 }
1069 }
1070
1071 static EGLBoolean
1072 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1073 {
1074 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1075 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1076
1077 (void) drv;
1078
1079 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1080 free(dri2_img);
1081
1082 return EGL_TRUE;
1083 }
1084
1085 static _EGLImage *
1086 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1087 const EGLint *attr_list)
1088 {
1089 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1090 struct dri2_egl_image *dri2_img;
1091 _EGLImageAttribs attrs;
1092 unsigned int dri_use, valid_mask;
1093 int format;
1094 EGLint err = EGL_SUCCESS;
1095
1096 (void) drv;
1097
1098 dri2_img = malloc(sizeof *dri2_img);
1099 if (!dri2_img) {
1100 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1101 return EGL_NO_IMAGE_KHR;
1102 }
1103
1104 if (!attr_list) {
1105 err = EGL_BAD_PARAMETER;
1106 goto cleanup_img;
1107 }
1108
1109 if (!_eglInitImage(&dri2_img->base, disp)) {
1110 err = EGL_BAD_PARAMETER;
1111 goto cleanup_img;
1112 }
1113
1114 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1115 if (err != EGL_SUCCESS)
1116 goto cleanup_img;
1117
1118 if (attrs.Width <= 0 || attrs.Height <= 0) {
1119 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1120 attrs.Width, attrs.Height);
1121 goto cleanup_img;
1122 }
1123
1124 switch (attrs.DRMBufferFormatMESA) {
1125 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1126 format = __DRI_IMAGE_FORMAT_ARGB8888;
1127 break;
1128 default:
1129 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1130 attrs.DRMBufferFormatMESA);
1131 goto cleanup_img;
1132 }
1133
1134 valid_mask =
1135 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1136 EGL_DRM_BUFFER_USE_SHARE_MESA |
1137 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1138 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1139 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1140 attrs.DRMBufferUseMESA & ~valid_mask);
1141 goto cleanup_img;
1142 }
1143
1144 dri_use = 0;
1145 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1146 dri_use |= __DRI_IMAGE_USE_SHARE;
1147 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1148 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1149 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1150 dri_use |= __DRI_IMAGE_USE_CURSOR;
1151
1152 dri2_img->dri_image =
1153 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1154 attrs.Width, attrs.Height,
1155 format, dri_use, dri2_img);
1156 if (dri2_img->dri_image == NULL) {
1157 err = EGL_BAD_ALLOC;
1158 goto cleanup_img;
1159 }
1160
1161 return &dri2_img->base;
1162
1163 cleanup_img:
1164 free(dri2_img);
1165 _eglError(err, "dri2_create_drm_image_mesa");
1166
1167 return EGL_NO_IMAGE_KHR;
1168 }
1169
1170 static EGLBoolean
1171 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1172 EGLint *name, EGLint *handle, EGLint *stride)
1173 {
1174 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1175 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1176
1177 (void) drv;
1178
1179 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1180 __DRI_IMAGE_ATTRIB_NAME, name)) {
1181 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1182 return EGL_FALSE;
1183 }
1184
1185 if (handle)
1186 dri2_dpy->image->queryImage(dri2_img->dri_image,
1187 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1188
1189 if (stride)
1190 dri2_dpy->image->queryImage(dri2_img->dri_image,
1191 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1192
1193 return EGL_TRUE;
1194 }
1195
1196 #ifdef HAVE_WAYLAND_PLATFORM
1197
1198 static void *
1199 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1200 int32_t width, int32_t height,
1201 uint32_t stride, struct wl_visual *visual)
1202 {
1203 _EGLDisplay *disp = user_data;
1204 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1205 __DRIimage *image;
1206
1207 image = dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1208 width, height,
1209 __DRI_IMAGE_FORMAT_ARGB8888,
1210 name, stride / 4,
1211 NULL);
1212
1213 return image;
1214 }
1215
1216 static void
1217 dri2_wl_release_buffer(void *user_data, void *buffer)
1218 {
1219 _EGLDisplay *disp = user_data;
1220 __DRIimage *image = buffer;
1221 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1222
1223 dri2_dpy->image->destroyImage(image);
1224 }
1225
1226 static struct wayland_drm_callbacks wl_drm_callbacks = {
1227 .authenticate = NULL,
1228 .reference_buffer = dri2_wl_reference_buffer,
1229 .release_buffer = dri2_wl_release_buffer
1230 };
1231
1232 static EGLBoolean
1233 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1234 struct wl_display *wl_dpy)
1235 {
1236 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1237
1238 (void) drv;
1239
1240 if (dri2_dpy->wl_server_drm)
1241 return EGL_FALSE;
1242
1243 wl_drm_callbacks.authenticate =
1244 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1245
1246 dri2_dpy->wl_server_drm =
1247 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1248 &wl_drm_callbacks, disp);
1249
1250 if (!dri2_dpy->wl_server_drm)
1251 return EGL_FALSE;
1252
1253 return EGL_TRUE;
1254 }
1255
1256 static EGLBoolean
1257 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1258 struct wl_display *wl_dpy)
1259 {
1260 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1261
1262 (void) drv;
1263
1264 if (!dri2_dpy->wl_server_drm)
1265 return EGL_FALSE;
1266
1267 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1268 dri2_dpy->wl_server_drm = NULL;
1269
1270 return EGL_TRUE;
1271 }
1272 #endif
1273
1274 static void
1275 dri2_unload(_EGLDriver *drv)
1276 {
1277 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1278
1279 if (dri2_drv->handle)
1280 dlclose(dri2_drv->handle);
1281 free(dri2_drv);
1282 }
1283
1284 static EGLBoolean
1285 dri2_load(_EGLDriver *drv)
1286 {
1287 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1288 #ifdef HAVE_SHARED_GLAPI
1289 const char *libname = "libglapi.so.0";
1290 #else
1291 /*
1292 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1293 * tell which one to load.
1294 */
1295 const char *libname = NULL;
1296 #endif
1297 void *handle;
1298
1299 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1300 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1301 if (handle) {
1302 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1303 dlsym(handle, "_glapi_get_proc_address");
1304 if (!dri2_drv->get_proc_address || !libname) {
1305 /* no need to keep a reference */
1306 dlclose(handle);
1307 handle = NULL;
1308 }
1309 }
1310
1311 /* if glapi is not available, loading DRI drivers will fail */
1312 if (!dri2_drv->get_proc_address) {
1313 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1314 return EGL_FALSE;
1315 }
1316
1317 dri2_drv->glFlush = (void (*)(void))
1318 dri2_drv->get_proc_address("glFlush");
1319
1320 dri2_drv->handle = handle;
1321
1322 return EGL_TRUE;
1323 }
1324
1325 /**
1326 * This is the main entrypoint into the driver, called by libEGL.
1327 * Create a new _EGLDriver object and init its dispatch table.
1328 */
1329 _EGLDriver *
1330 _EGL_MAIN(const char *args)
1331 {
1332 struct dri2_egl_driver *dri2_drv;
1333
1334 (void) args;
1335
1336 dri2_drv = malloc(sizeof *dri2_drv);
1337 if (!dri2_drv)
1338 return NULL;
1339
1340 memset(dri2_drv, 0, sizeof *dri2_drv);
1341
1342 if (!dri2_load(&dri2_drv->base)) {
1343 free(dri2_drv);
1344 return NULL;
1345 }
1346
1347 _eglInitDriverFallbacks(&dri2_drv->base);
1348 dri2_drv->base.API.Initialize = dri2_initialize;
1349 dri2_drv->base.API.Terminate = dri2_terminate;
1350 dri2_drv->base.API.CreateContext = dri2_create_context;
1351 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1352 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1353 dri2_drv->base.API.WaitClient = dri2_wait_client;
1354 dri2_drv->base.API.WaitNative = dri2_wait_native;
1355 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1356 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1357 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1358 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1359 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1360 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1361 #ifdef HAVE_WAYLAND_PLATFORM
1362 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1363 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1364 #endif
1365
1366 dri2_drv->base.Name = "DRI2";
1367 dri2_drv->base.Unload = dri2_unload;
1368
1369 return &dri2_drv->base;
1370 }