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[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 if (!extensions) {
420 /* try again with swrastg */
421 dri2_dpy->driver_name = "swrastg";
422 extensions = dri2_open_driver(disp);
423 }
424
425 if (!extensions)
426 return EGL_FALSE;
427
428 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
429 dlclose(dri2_dpy->driver);
430 return EGL_FALSE;
431 }
432
433 return EGL_TRUE;
434 }
435
436 void
437 dri2_setup_screen(_EGLDisplay *disp)
438 {
439 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
440 unsigned int api_mask;
441
442 if (dri2_dpy->dri2) {
443 if (dri2_dpy->dri2->base.version >= 2)
444 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
445 else
446 api_mask = 1 << __DRI_API_OPENGL;
447 } else {
448 assert(dri2_dpy->swrast);
449 if (dri2_dpy->swrast->base.version >= 2)
450 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
451 else
452 api_mask = 1 << __DRI_API_OPENGL;
453 }
454
455 disp->ClientAPIs = 0;
456 if (api_mask & (1 <<__DRI_API_OPENGL))
457 disp->ClientAPIs |= EGL_OPENGL_BIT;
458 if (api_mask & (1 <<__DRI_API_GLES))
459 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
460 if (api_mask & (1 << __DRI_API_GLES2))
461 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
462
463 if (dri2_dpy->dri2) {
464 if (dri2_dpy->dri2->base.version >= 2) {
465 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
466 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
467 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
468 }
469 } else {
470 assert(dri2_dpy->swrast);
471 if (dri2_dpy->swrast->base.version >= 2) {
472 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
473 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
474 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
475 }
476 }
477
478 if (dri2_dpy->image) {
479 disp->Extensions.MESA_drm_image = EGL_TRUE;
480 disp->Extensions.KHR_image_base = EGL_TRUE;
481 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
482 }
483 }
484
485 EGLBoolean
486 dri2_create_screen(_EGLDisplay *disp)
487 {
488 const __DRIextension **extensions;
489 struct dri2_egl_display *dri2_dpy;
490
491 dri2_dpy = disp->DriverData;
492
493 if (dri2_dpy->dri2) {
494 dri2_dpy->dri_screen =
495 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
496 &dri2_dpy->driver_configs, disp);
497 } else {
498 assert(dri2_dpy->swrast);
499 dri2_dpy->dri_screen =
500 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
501 &dri2_dpy->driver_configs, disp);
502 }
503
504 if (dri2_dpy->dri_screen == NULL) {
505 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
506 return EGL_FALSE;
507 }
508
509 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
510
511 if (dri2_dpy->dri2) {
512 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
513 goto cleanup_dri_screen;
514 } else {
515 assert(dri2_dpy->swrast);
516 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
517 goto cleanup_dri_screen;
518 }
519
520 dri2_setup_screen(disp);
521
522 return EGL_TRUE;
523
524 cleanup_dri_screen:
525 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
526
527 return EGL_FALSE;
528 }
529
530 /**
531 * Called via eglInitialize(), GLX_drv->API.Initialize().
532 */
533 static EGLBoolean
534 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
535 {
536 /* not until swrast_dri is supported */
537 if (disp->Options.UseFallback)
538 return EGL_FALSE;
539
540 switch (disp->Platform) {
541 #ifdef HAVE_X11_PLATFORM
542 case _EGL_PLATFORM_X11:
543 if (disp->Options.TestOnly)
544 return EGL_TRUE;
545 return dri2_initialize_x11(drv, disp);
546 #endif
547
548 #ifdef HAVE_LIBUDEV
549 #ifdef HAVE_DRM_PLATFORM
550 case _EGL_PLATFORM_DRM:
551 if (disp->Options.TestOnly)
552 return EGL_TRUE;
553 return dri2_initialize_drm(drv, disp);
554 #endif
555 #ifdef HAVE_WAYLAND_PLATFORM
556 case _EGL_PLATFORM_WAYLAND:
557 if (disp->Options.TestOnly)
558 return EGL_TRUE;
559 return dri2_initialize_wayland(drv, disp);
560 #endif
561 #endif
562
563 default:
564 return EGL_FALSE;
565 }
566 }
567
568 /**
569 * Called via eglTerminate(), drv->API.Terminate().
570 */
571 static EGLBoolean
572 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
573 {
574 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
575
576 _eglReleaseDisplayResources(drv, disp);
577 _eglCleanupDisplay(disp);
578
579 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
580 if (dri2_dpy->fd)
581 close(dri2_dpy->fd);
582 dlclose(dri2_dpy->driver);
583
584 if (disp->PlatformDisplay == NULL) {
585 switch (disp->Platform) {
586 #ifdef HAVE_X11_PLATFORM
587 case _EGL_PLATFORM_X11:
588 xcb_disconnect(dri2_dpy->conn);
589 break;
590 #endif
591 #ifdef HAVE_WAYLAND_PLATFORM
592 case _EGL_PLATFORM_WAYLAND:
593 wl_display_destroy(dri2_dpy->wl_dpy);
594 break;
595 #endif
596 default:
597 break;
598 }
599 }
600
601 free(dri2_dpy);
602 disp->DriverData = NULL;
603
604 return EGL_TRUE;
605 }
606
607
608 /**
609 * Called via eglCreateContext(), drv->API.CreateContext().
610 */
611 static _EGLContext *
612 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
613 _EGLContext *share_list, const EGLint *attrib_list)
614 {
615 struct dri2_egl_context *dri2_ctx;
616 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
617 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
618 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
619 const __DRIconfig *dri_config;
620 int api;
621
622 (void) drv;
623
624 dri2_ctx = malloc(sizeof *dri2_ctx);
625 if (!dri2_ctx) {
626 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
627 return NULL;
628 }
629
630 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
631 goto cleanup;
632
633 switch (dri2_ctx->base.ClientAPI) {
634 case EGL_OPENGL_ES_API:
635 switch (dri2_ctx->base.ClientVersion) {
636 case 1:
637 api = __DRI_API_GLES;
638 break;
639 case 2:
640 api = __DRI_API_GLES2;
641 break;
642 default:
643 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
644 return NULL;
645 }
646 break;
647 case EGL_OPENGL_API:
648 api = __DRI_API_OPENGL;
649 break;
650 default:
651 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
652 return NULL;
653 }
654
655 if (conf != NULL) {
656 /* The config chosen here isn't necessarily
657 * used for surfaces later.
658 * A pixmap surface will use the single config.
659 * This opportunity depends on disabling the
660 * doubleBufferMode check in
661 * src/mesa/main/context.c:check_compatible()
662 */
663 if (dri2_config->dri_double_config)
664 dri_config = dri2_config->dri_double_config;
665 else
666 dri_config = dri2_config->dri_single_config;
667 }
668 else
669 dri_config = NULL;
670
671 if (dri2_dpy->dri2) {
672 if (dri2_dpy->dri2->base.version >= 2) {
673 dri2_ctx->dri_context =
674 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
675 api,
676 dri_config,
677 dri2_ctx_shared ?
678 dri2_ctx_shared->dri_context : NULL,
679 dri2_ctx);
680 } else if (api == __DRI_API_OPENGL) {
681 dri2_ctx->dri_context =
682 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
683 dri_config,
684 dri2_ctx_shared ?
685 dri2_ctx_shared->dri_context : NULL,
686 dri2_ctx);
687 } else {
688 /* fail */
689 }
690 } else {
691 assert(dri2_dpy->swrast);
692 if (dri2_dpy->swrast->base.version >= 2) {
693 dri2_ctx->dri_context =
694 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
695 api,
696 dri_config,
697 dri2_ctx_shared ?
698 dri2_ctx_shared->dri_context : NULL,
699 dri2_ctx);
700 } else if (api == __DRI_API_OPENGL) {
701 dri2_ctx->dri_context =
702 dri2_dpy->core->createNewContext(dri2_dpy->dri_screen,
703 dri_config,
704 dri2_ctx_shared ?
705 dri2_ctx_shared->dri_context : NULL,
706 dri2_ctx);
707 } else {
708 /* fail */
709 }
710 }
711
712 if (!dri2_ctx->dri_context)
713 goto cleanup;
714
715 return &dri2_ctx->base;
716
717 cleanup:
718 free(dri2_ctx);
719 return NULL;
720 }
721
722 /**
723 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
724 */
725 static EGLBoolean
726 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
727 _EGLSurface *rsurf, _EGLContext *ctx)
728 {
729 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
730 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
731 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
732 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
733 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
734 _EGLContext *old_ctx;
735 _EGLSurface *old_dsurf, *old_rsurf;
736 __DRIdrawable *ddraw, *rdraw;
737 __DRIcontext *cctx;
738
739 /* make new bindings */
740 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
741 return EGL_FALSE;
742
743 /* flush before context switch */
744 if (old_ctx && dri2_drv->glFlush)
745 dri2_drv->glFlush();
746
747 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
748 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
749 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
750
751 if (old_ctx) {
752 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
753 dri2_dpy->core->unbindContext(old_cctx);
754 }
755
756 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
757 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
758 if (old_dsurf)
759 drv->API.DestroySurface(drv, disp, old_dsurf);
760 if (old_rsurf)
761 drv->API.DestroySurface(drv, disp, old_rsurf);
762 /* no destroy? */
763 if (old_ctx)
764 _eglPutContext(old_ctx);
765
766 return EGL_TRUE;
767 } else {
768 /* undo the previous _eglBindContext */
769 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
770 assert(&dri2_ctx->base == ctx &&
771 &dri2_dsurf->base == dsurf &&
772 &dri2_rsurf->base == rsurf);
773
774 _eglPutSurface(dsurf);
775 _eglPutSurface(rsurf);
776 _eglPutContext(ctx);
777
778 _eglPutSurface(old_dsurf);
779 _eglPutSurface(old_rsurf);
780 _eglPutContext(old_ctx);
781
782 return EGL_FALSE;
783 }
784 }
785
786 /*
787 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
788 */
789 static _EGLProc
790 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
791 {
792 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
793
794 return dri2_drv->get_proc_address(procname);
795 }
796
797 static EGLBoolean
798 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
799 {
800 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
801 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
802
803 (void) drv;
804
805 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
806 * we need to copy fake to real here.*/
807
808 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
809
810 return EGL_TRUE;
811 }
812
813 static EGLBoolean
814 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
815 {
816 (void) drv;
817 (void) disp;
818
819 if (engine != EGL_CORE_NATIVE_ENGINE)
820 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
821 /* glXWaitX(); */
822
823 return EGL_TRUE;
824 }
825
826 static EGLBoolean
827 dri2_bind_tex_image(_EGLDriver *drv,
828 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
829 {
830 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
831 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
832 struct dri2_egl_context *dri2_ctx;
833 _EGLContext *ctx;
834 GLint format, target;
835
836 ctx = _eglGetCurrentContext();
837 dri2_ctx = dri2_egl_context(ctx);
838
839 if (!_eglBindTexImage(drv, disp, surf, buffer))
840 return EGL_FALSE;
841
842 switch (dri2_surf->base.TextureFormat) {
843 case EGL_TEXTURE_RGB:
844 format = __DRI_TEXTURE_FORMAT_RGB;
845 break;
846 case EGL_TEXTURE_RGBA:
847 format = __DRI_TEXTURE_FORMAT_RGBA;
848 break;
849 default:
850 assert(0);
851 }
852
853 switch (dri2_surf->base.TextureTarget) {
854 case EGL_TEXTURE_2D:
855 target = GL_TEXTURE_2D;
856 break;
857 default:
858 assert(0);
859 }
860
861 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
862 target, format,
863 dri2_surf->dri_drawable);
864
865 return EGL_TRUE;
866 }
867
868 static EGLBoolean
869 dri2_release_tex_image(_EGLDriver *drv,
870 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
871 {
872 #if __DRI_TEX_BUFFER_VERSION >= 3
873 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
874 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
875 struct dri2_egl_context *dri2_ctx;
876 _EGLContext *ctx;
877 GLint target;
878
879 ctx = _eglGetCurrentContext();
880 dri2_ctx = dri2_egl_context(ctx);
881
882 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
883 return EGL_FALSE;
884
885 switch (dri2_surf->base.TextureTarget) {
886 case EGL_TEXTURE_2D:
887 target = GL_TEXTURE_2D;
888 break;
889 default:
890 assert(0);
891 }
892 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
893 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
894 target,
895 dri2_surf->dri_drawable);
896 #endif
897
898 return EGL_TRUE;
899 }
900
901 static _EGLImage *
902 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
903 EGLClientBuffer buffer,
904 const EGLint *attr_list)
905 {
906 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
907 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
908 struct dri2_egl_image *dri2_img;
909 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
910
911 if (renderbuffer == 0) {
912 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
913 return EGL_NO_IMAGE_KHR;
914 }
915
916 dri2_img = malloc(sizeof *dri2_img);
917 if (!dri2_img) {
918 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
919 return EGL_NO_IMAGE_KHR;
920 }
921
922 if (!_eglInitImage(&dri2_img->base, disp))
923 return EGL_NO_IMAGE_KHR;
924
925 dri2_img->dri_image =
926 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
927 renderbuffer,
928 dri2_img);
929
930 return &dri2_img->base;
931 }
932
933 static _EGLImage *
934 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
935 EGLClientBuffer buffer, const EGLint *attr_list)
936 {
937 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
938 struct dri2_egl_image *dri2_img;
939 EGLint format, name, pitch, err;
940 _EGLImageAttribs attrs;
941
942 (void) ctx;
943
944 name = (EGLint) (uintptr_t) buffer;
945
946 err = _eglParseImageAttribList(&attrs, disp, attr_list);
947 if (err != EGL_SUCCESS)
948 return NULL;
949
950 if (attrs.Width <= 0 || attrs.Height <= 0 ||
951 attrs.DRMBufferStrideMESA <= 0) {
952 _eglError(EGL_BAD_PARAMETER,
953 "bad width, height or stride");
954 return NULL;
955 }
956
957 switch (attrs.DRMBufferFormatMESA) {
958 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
959 format = __DRI_IMAGE_FORMAT_ARGB8888;
960 pitch = attrs.DRMBufferStrideMESA;
961 break;
962 default:
963 _eglError(EGL_BAD_PARAMETER,
964 "dri2_create_image_khr: unsupported pixmap depth");
965 return NULL;
966 }
967
968 dri2_img = malloc(sizeof *dri2_img);
969 if (!dri2_img) {
970 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
971 return NULL;
972 }
973
974 if (!_eglInitImage(&dri2_img->base, disp)) {
975 free(dri2_img);
976 return NULL;
977 }
978
979 dri2_img->dri_image =
980 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
981 attrs.Width,
982 attrs.Height,
983 format,
984 name,
985 pitch,
986 dri2_img);
987 if (dri2_img->dri_image == NULL) {
988 free(dri2_img);
989 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
990 return NULL;
991 }
992
993 return &dri2_img->base;
994 }
995
996 #ifdef HAVE_WAYLAND_PLATFORM
997 static _EGLImage *
998 dri2_reference_drm_image(_EGLDisplay *disp, _EGLContext *ctx,
999 __DRIimage *dri_image, EGLint width, EGLint height)
1000 {
1001 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1002 EGLint attr_list[] = {
1003 EGL_WIDTH, 0,
1004 EGL_HEIGHT, 0,
1005 EGL_DRM_BUFFER_STRIDE_MESA, 0,
1006 EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
1007 EGL_NONE
1008 };
1009 EGLint name, stride;
1010
1011 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_NAME, &name);
1012 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
1013
1014 attr_list[1] = width;
1015 attr_list[3] = height;
1016 attr_list[5] = stride / 4;
1017
1018 return dri2_create_image_mesa_drm_buffer(disp, ctx,
1019 (EGLClientBuffer)(intptr_t) name,
1020 attr_list);
1021 }
1022
1023 static _EGLImage *
1024 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1025 EGLClientBuffer _buffer,
1026 const EGLint *attr_list)
1027 {
1028 struct wl_buffer *buffer = (struct wl_buffer *) _buffer;
1029 (void) attr_list;
1030
1031 if (!wayland_buffer_is_drm(buffer))
1032 return NULL;
1033
1034 return dri2_reference_drm_image(disp, ctx,
1035 wayland_drm_buffer_get_buffer(buffer),
1036 buffer->width,
1037 buffer->height);
1038 }
1039 #endif
1040
1041 _EGLImage *
1042 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1043 _EGLContext *ctx, EGLenum target,
1044 EGLClientBuffer buffer, const EGLint *attr_list)
1045 {
1046 (void) drv;
1047
1048 switch (target) {
1049 case EGL_GL_RENDERBUFFER_KHR:
1050 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1051 case EGL_DRM_BUFFER_MESA:
1052 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1053 #ifdef HAVE_WAYLAND_PLATFORM
1054 case EGL_WAYLAND_BUFFER_WL:
1055 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1056 #endif
1057 default:
1058 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1059 return EGL_NO_IMAGE_KHR;
1060 }
1061 }
1062
1063 static EGLBoolean
1064 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1065 {
1066 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1067 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1068
1069 (void) drv;
1070
1071 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1072 free(dri2_img);
1073
1074 return EGL_TRUE;
1075 }
1076
1077 static _EGLImage *
1078 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1079 const EGLint *attr_list)
1080 {
1081 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1082 struct dri2_egl_image *dri2_img;
1083 _EGLImageAttribs attrs;
1084 unsigned int dri_use, valid_mask;
1085 int format;
1086 EGLint err = EGL_SUCCESS;
1087
1088 (void) drv;
1089
1090 dri2_img = malloc(sizeof *dri2_img);
1091 if (!dri2_img) {
1092 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1093 return EGL_NO_IMAGE_KHR;
1094 }
1095
1096 if (!attr_list) {
1097 err = EGL_BAD_PARAMETER;
1098 goto cleanup_img;
1099 }
1100
1101 if (!_eglInitImage(&dri2_img->base, disp)) {
1102 err = EGL_BAD_PARAMETER;
1103 goto cleanup_img;
1104 }
1105
1106 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1107 if (err != EGL_SUCCESS)
1108 goto cleanup_img;
1109
1110 if (attrs.Width <= 0 || attrs.Height <= 0) {
1111 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1112 attrs.Width, attrs.Height);
1113 goto cleanup_img;
1114 }
1115
1116 switch (attrs.DRMBufferFormatMESA) {
1117 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1118 format = __DRI_IMAGE_FORMAT_ARGB8888;
1119 break;
1120 default:
1121 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1122 attrs.DRMBufferFormatMESA);
1123 goto cleanup_img;
1124 }
1125
1126 valid_mask =
1127 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1128 EGL_DRM_BUFFER_USE_SHARE_MESA |
1129 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1130 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1131 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1132 attrs.DRMBufferUseMESA & ~valid_mask);
1133 goto cleanup_img;
1134 }
1135
1136 dri_use = 0;
1137 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1138 dri_use |= __DRI_IMAGE_USE_SHARE;
1139 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1140 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1141 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1142 dri_use |= __DRI_IMAGE_USE_CURSOR;
1143
1144 dri2_img->dri_image =
1145 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1146 attrs.Width, attrs.Height,
1147 format, dri_use, dri2_img);
1148 if (dri2_img->dri_image == NULL) {
1149 err = EGL_BAD_ALLOC;
1150 goto cleanup_img;
1151 }
1152
1153 return &dri2_img->base;
1154
1155 cleanup_img:
1156 free(dri2_img);
1157 _eglError(err, "dri2_create_drm_image_mesa");
1158
1159 return EGL_NO_IMAGE_KHR;
1160 }
1161
1162 static EGLBoolean
1163 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1164 EGLint *name, EGLint *handle, EGLint *stride)
1165 {
1166 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1167 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1168
1169 (void) drv;
1170
1171 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1172 __DRI_IMAGE_ATTRIB_NAME, name)) {
1173 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1174 return EGL_FALSE;
1175 }
1176
1177 if (handle)
1178 dri2_dpy->image->queryImage(dri2_img->dri_image,
1179 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1180
1181 if (stride)
1182 dri2_dpy->image->queryImage(dri2_img->dri_image,
1183 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1184
1185 return EGL_TRUE;
1186 }
1187
1188 #ifdef HAVE_WAYLAND_PLATFORM
1189
1190 static void *
1191 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1192 int32_t width, int32_t height,
1193 uint32_t stride, struct wl_visual *visual)
1194 {
1195 _EGLDisplay *disp = user_data;
1196 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1197 __DRIimage *image;
1198
1199 image = dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1200 width, height,
1201 __DRI_IMAGE_FORMAT_ARGB8888,
1202 name, stride / 4,
1203 NULL);
1204
1205 return image;
1206 }
1207
1208 static void
1209 dri2_wl_release_buffer(void *user_data, void *buffer)
1210 {
1211 _EGLDisplay *disp = user_data;
1212 __DRIimage *image = buffer;
1213 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1214
1215 dri2_dpy->image->destroyImage(image);
1216 }
1217
1218 static struct wayland_drm_callbacks wl_drm_callbacks = {
1219 .authenticate = NULL,
1220 .reference_buffer = dri2_wl_reference_buffer,
1221 .release_buffer = dri2_wl_release_buffer
1222 };
1223
1224 static EGLBoolean
1225 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1226 struct wl_display *wl_dpy)
1227 {
1228 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1229
1230 (void) drv;
1231
1232 if (dri2_dpy->wl_server_drm)
1233 return EGL_FALSE;
1234
1235 wl_drm_callbacks.authenticate =
1236 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1237
1238 dri2_dpy->wl_server_drm =
1239 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1240 &wl_drm_callbacks, disp);
1241
1242 if (!dri2_dpy->wl_server_drm)
1243 return EGL_FALSE;
1244
1245 return EGL_TRUE;
1246 }
1247
1248 static EGLBoolean
1249 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1250 struct wl_display *wl_dpy)
1251 {
1252 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1253
1254 (void) drv;
1255
1256 if (!dri2_dpy->wl_server_drm)
1257 return EGL_FALSE;
1258
1259 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1260 dri2_dpy->wl_server_drm = NULL;
1261
1262 return EGL_TRUE;
1263 }
1264 #endif
1265
1266 static void
1267 dri2_unload(_EGLDriver *drv)
1268 {
1269 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1270
1271 if (dri2_drv->handle)
1272 dlclose(dri2_drv->handle);
1273 free(dri2_drv);
1274 }
1275
1276 static EGLBoolean
1277 dri2_load(_EGLDriver *drv)
1278 {
1279 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1280 #ifdef HAVE_SHARED_GLAPI
1281 const char *libname = "libglapi.so.0";
1282 #else
1283 /*
1284 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1285 * tell which one to load.
1286 */
1287 const char *libname = NULL;
1288 #endif
1289 void *handle;
1290
1291 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1292 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1293 if (handle) {
1294 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1295 dlsym(handle, "_glapi_get_proc_address");
1296 if (!dri2_drv->get_proc_address || !libname) {
1297 /* no need to keep a reference */
1298 dlclose(handle);
1299 handle = NULL;
1300 }
1301 }
1302
1303 /* if glapi is not available, loading DRI drivers will fail */
1304 if (!dri2_drv->get_proc_address) {
1305 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1306 return EGL_FALSE;
1307 }
1308
1309 dri2_drv->glFlush = (void (*)(void))
1310 dri2_drv->get_proc_address("glFlush");
1311
1312 dri2_drv->handle = handle;
1313
1314 return EGL_TRUE;
1315 }
1316
1317 /**
1318 * This is the main entrypoint into the driver, called by libEGL.
1319 * Create a new _EGLDriver object and init its dispatch table.
1320 */
1321 _EGLDriver *
1322 _EGL_MAIN(const char *args)
1323 {
1324 struct dri2_egl_driver *dri2_drv;
1325
1326 (void) args;
1327
1328 dri2_drv = malloc(sizeof *dri2_drv);
1329 if (!dri2_drv)
1330 return NULL;
1331
1332 memset(dri2_drv, 0, sizeof *dri2_drv);
1333
1334 if (!dri2_load(&dri2_drv->base))
1335 return NULL;
1336
1337 _eglInitDriverFallbacks(&dri2_drv->base);
1338 dri2_drv->base.API.Initialize = dri2_initialize;
1339 dri2_drv->base.API.Terminate = dri2_terminate;
1340 dri2_drv->base.API.CreateContext = dri2_create_context;
1341 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1342 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1343 dri2_drv->base.API.WaitClient = dri2_wait_client;
1344 dri2_drv->base.API.WaitNative = dri2_wait_native;
1345 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1346 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1347 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1348 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1349 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1350 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1351 #ifdef HAVE_WAYLAND_PLATFORM
1352 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1353 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1354 #endif
1355
1356 dri2_drv->base.Name = "DRI2";
1357 dri2_drv->base.Unload = dri2_unload;
1358
1359 return &dri2_drv->base;
1360 }