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Merge branch 'xa_branch'
[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 dri2_dpy->own_dri_screen = 1;
510
511 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
512
513 if (dri2_dpy->dri2) {
514 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
515 goto cleanup_dri_screen;
516 } else {
517 assert(dri2_dpy->swrast);
518 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
519 goto cleanup_dri_screen;
520 }
521
522 dri2_setup_screen(disp);
523
524 return EGL_TRUE;
525
526 cleanup_dri_screen:
527 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
528
529 return EGL_FALSE;
530 }
531
532 /**
533 * Called via eglInitialize(), GLX_drv->API.Initialize().
534 */
535 static EGLBoolean
536 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
537 {
538 /* not until swrast_dri is supported */
539 if (disp->Options.UseFallback)
540 return EGL_FALSE;
541
542 switch (disp->Platform) {
543 #ifdef HAVE_X11_PLATFORM
544 case _EGL_PLATFORM_X11:
545 if (disp->Options.TestOnly)
546 return EGL_TRUE;
547 return dri2_initialize_x11(drv, disp);
548 #endif
549
550 #ifdef HAVE_LIBUDEV
551 #ifdef HAVE_DRM_PLATFORM
552 case _EGL_PLATFORM_DRM:
553 if (disp->Options.TestOnly)
554 return EGL_TRUE;
555 return dri2_initialize_drm(drv, disp);
556 #endif
557 #ifdef HAVE_WAYLAND_PLATFORM
558 case _EGL_PLATFORM_WAYLAND:
559 if (disp->Options.TestOnly)
560 return EGL_TRUE;
561 return dri2_initialize_wayland(drv, disp);
562 #endif
563 #endif
564
565 default:
566 return EGL_FALSE;
567 }
568 }
569
570 /**
571 * Called via eglTerminate(), drv->API.Terminate().
572 */
573 static EGLBoolean
574 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
575 {
576 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
577
578 _eglReleaseDisplayResources(drv, disp);
579 _eglCleanupDisplay(disp);
580
581 if (dri2_dpy->own_dri_screen)
582 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
583 if (dri2_dpy->fd)
584 close(dri2_dpy->fd);
585 if (dri2_dpy->driver)
586 dlclose(dri2_dpy->driver);
587
588 if (disp->PlatformDisplay == NULL) {
589 switch (disp->Platform) {
590 #ifdef HAVE_X11_PLATFORM
591 case _EGL_PLATFORM_X11:
592 xcb_disconnect(dri2_dpy->conn);
593 break;
594 #endif
595 #ifdef HAVE_WAYLAND_PLATFORM
596 case _EGL_PLATFORM_WAYLAND:
597 wl_display_destroy(dri2_dpy->wl_dpy);
598 break;
599 #endif
600 default:
601 break;
602 }
603 }
604
605 free(dri2_dpy);
606 disp->DriverData = NULL;
607
608 return EGL_TRUE;
609 }
610
611
612 /**
613 * Called via eglCreateContext(), drv->API.CreateContext().
614 */
615 static _EGLContext *
616 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
617 _EGLContext *share_list, const EGLint *attrib_list)
618 {
619 struct dri2_egl_context *dri2_ctx;
620 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
621 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
622 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
623 const __DRIconfig *dri_config;
624 int api;
625
626 (void) drv;
627
628 dri2_ctx = malloc(sizeof *dri2_ctx);
629 if (!dri2_ctx) {
630 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
631 return NULL;
632 }
633
634 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
635 goto cleanup;
636
637 switch (dri2_ctx->base.ClientAPI) {
638 case EGL_OPENGL_ES_API:
639 switch (dri2_ctx->base.ClientVersion) {
640 case 1:
641 api = __DRI_API_GLES;
642 break;
643 case 2:
644 api = __DRI_API_GLES2;
645 break;
646 default:
647 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
648 return NULL;
649 }
650 break;
651 case EGL_OPENGL_API:
652 api = __DRI_API_OPENGL;
653 break;
654 default:
655 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
656 return NULL;
657 }
658
659 if (conf != NULL) {
660 /* The config chosen here isn't necessarily
661 * used for surfaces later.
662 * A pixmap surface will use the single config.
663 * This opportunity depends on disabling the
664 * doubleBufferMode check in
665 * src/mesa/main/context.c:check_compatible()
666 */
667 if (dri2_config->dri_double_config)
668 dri_config = dri2_config->dri_double_config;
669 else
670 dri_config = dri2_config->dri_single_config;
671 }
672 else
673 dri_config = NULL;
674
675 if (dri2_dpy->dri2) {
676 if (dri2_dpy->dri2->base.version >= 2) {
677 dri2_ctx->dri_context =
678 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
679 api,
680 dri_config,
681 dri2_ctx_shared ?
682 dri2_ctx_shared->dri_context : NULL,
683 dri2_ctx);
684 } else if (api == __DRI_API_OPENGL) {
685 dri2_ctx->dri_context =
686 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
687 dri_config,
688 dri2_ctx_shared ?
689 dri2_ctx_shared->dri_context : NULL,
690 dri2_ctx);
691 } else {
692 /* fail */
693 }
694 } else {
695 assert(dri2_dpy->swrast);
696 if (dri2_dpy->swrast->base.version >= 2) {
697 dri2_ctx->dri_context =
698 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
699 api,
700 dri_config,
701 dri2_ctx_shared ?
702 dri2_ctx_shared->dri_context : NULL,
703 dri2_ctx);
704 } else if (api == __DRI_API_OPENGL) {
705 dri2_ctx->dri_context =
706 dri2_dpy->core->createNewContext(dri2_dpy->dri_screen,
707 dri_config,
708 dri2_ctx_shared ?
709 dri2_ctx_shared->dri_context : NULL,
710 dri2_ctx);
711 } else {
712 /* fail */
713 }
714 }
715
716 if (!dri2_ctx->dri_context)
717 goto cleanup;
718
719 return &dri2_ctx->base;
720
721 cleanup:
722 free(dri2_ctx);
723 return NULL;
724 }
725
726 /**
727 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
728 */
729 static EGLBoolean
730 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
731 _EGLSurface *rsurf, _EGLContext *ctx)
732 {
733 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
734 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
735 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
736 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
737 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
738 _EGLContext *old_ctx;
739 _EGLSurface *old_dsurf, *old_rsurf;
740 __DRIdrawable *ddraw, *rdraw;
741 __DRIcontext *cctx;
742
743 /* make new bindings */
744 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
745 return EGL_FALSE;
746
747 /* flush before context switch */
748 if (old_ctx && dri2_drv->glFlush)
749 dri2_drv->glFlush();
750
751 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
752 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
753 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
754
755 if (old_ctx) {
756 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
757 dri2_dpy->core->unbindContext(old_cctx);
758 }
759
760 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
761 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
762 if (old_dsurf)
763 drv->API.DestroySurface(drv, disp, old_dsurf);
764 if (old_rsurf)
765 drv->API.DestroySurface(drv, disp, old_rsurf);
766 /* no destroy? */
767 if (old_ctx)
768 _eglPutContext(old_ctx);
769
770 return EGL_TRUE;
771 } else {
772 /* undo the previous _eglBindContext */
773 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
774 assert(&dri2_ctx->base == ctx &&
775 &dri2_dsurf->base == dsurf &&
776 &dri2_rsurf->base == rsurf);
777
778 _eglPutSurface(dsurf);
779 _eglPutSurface(rsurf);
780 _eglPutContext(ctx);
781
782 _eglPutSurface(old_dsurf);
783 _eglPutSurface(old_rsurf);
784 _eglPutContext(old_ctx);
785
786 return EGL_FALSE;
787 }
788 }
789
790 /*
791 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
792 */
793 static _EGLProc
794 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
795 {
796 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
797
798 return dri2_drv->get_proc_address(procname);
799 }
800
801 static EGLBoolean
802 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
803 {
804 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
805 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
806
807 (void) drv;
808
809 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
810 * we need to copy fake to real here.*/
811
812 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
813
814 return EGL_TRUE;
815 }
816
817 static EGLBoolean
818 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
819 {
820 (void) drv;
821 (void) disp;
822
823 if (engine != EGL_CORE_NATIVE_ENGINE)
824 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
825 /* glXWaitX(); */
826
827 return EGL_TRUE;
828 }
829
830 static EGLBoolean
831 dri2_bind_tex_image(_EGLDriver *drv,
832 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
833 {
834 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
835 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
836 struct dri2_egl_context *dri2_ctx;
837 _EGLContext *ctx;
838 GLint format, target;
839
840 ctx = _eglGetCurrentContext();
841 dri2_ctx = dri2_egl_context(ctx);
842
843 if (!_eglBindTexImage(drv, disp, surf, buffer))
844 return EGL_FALSE;
845
846 switch (dri2_surf->base.TextureFormat) {
847 case EGL_TEXTURE_RGB:
848 format = __DRI_TEXTURE_FORMAT_RGB;
849 break;
850 case EGL_TEXTURE_RGBA:
851 format = __DRI_TEXTURE_FORMAT_RGBA;
852 break;
853 default:
854 assert(0);
855 }
856
857 switch (dri2_surf->base.TextureTarget) {
858 case EGL_TEXTURE_2D:
859 target = GL_TEXTURE_2D;
860 break;
861 default:
862 assert(0);
863 }
864
865 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
866 target, format,
867 dri2_surf->dri_drawable);
868
869 return EGL_TRUE;
870 }
871
872 static EGLBoolean
873 dri2_release_tex_image(_EGLDriver *drv,
874 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
875 {
876 #if __DRI_TEX_BUFFER_VERSION >= 3
877 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
878 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
879 struct dri2_egl_context *dri2_ctx;
880 _EGLContext *ctx;
881 GLint target;
882
883 ctx = _eglGetCurrentContext();
884 dri2_ctx = dri2_egl_context(ctx);
885
886 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
887 return EGL_FALSE;
888
889 switch (dri2_surf->base.TextureTarget) {
890 case EGL_TEXTURE_2D:
891 target = GL_TEXTURE_2D;
892 break;
893 default:
894 assert(0);
895 }
896 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
897 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
898 target,
899 dri2_surf->dri_drawable);
900 #endif
901
902 return EGL_TRUE;
903 }
904
905 static _EGLImage *
906 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
907 EGLClientBuffer buffer,
908 const EGLint *attr_list)
909 {
910 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
911 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
912 struct dri2_egl_image *dri2_img;
913 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
914
915 if (renderbuffer == 0) {
916 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
917 return EGL_NO_IMAGE_KHR;
918 }
919
920 dri2_img = malloc(sizeof *dri2_img);
921 if (!dri2_img) {
922 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
923 return EGL_NO_IMAGE_KHR;
924 }
925
926 if (!_eglInitImage(&dri2_img->base, disp))
927 return EGL_NO_IMAGE_KHR;
928
929 dri2_img->dri_image =
930 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
931 renderbuffer,
932 dri2_img);
933
934 return &dri2_img->base;
935 }
936
937 static _EGLImage *
938 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
939 EGLClientBuffer buffer, const EGLint *attr_list)
940 {
941 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
942 struct dri2_egl_image *dri2_img;
943 EGLint format, name, pitch, err;
944 _EGLImageAttribs attrs;
945
946 (void) ctx;
947
948 name = (EGLint) (uintptr_t) buffer;
949
950 err = _eglParseImageAttribList(&attrs, disp, attr_list);
951 if (err != EGL_SUCCESS)
952 return NULL;
953
954 if (attrs.Width <= 0 || attrs.Height <= 0 ||
955 attrs.DRMBufferStrideMESA <= 0) {
956 _eglError(EGL_BAD_PARAMETER,
957 "bad width, height or stride");
958 return NULL;
959 }
960
961 switch (attrs.DRMBufferFormatMESA) {
962 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
963 format = __DRI_IMAGE_FORMAT_ARGB8888;
964 pitch = attrs.DRMBufferStrideMESA;
965 break;
966 default:
967 _eglError(EGL_BAD_PARAMETER,
968 "dri2_create_image_khr: unsupported pixmap depth");
969 return NULL;
970 }
971
972 dri2_img = malloc(sizeof *dri2_img);
973 if (!dri2_img) {
974 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
975 return NULL;
976 }
977
978 if (!_eglInitImage(&dri2_img->base, disp)) {
979 free(dri2_img);
980 return NULL;
981 }
982
983 dri2_img->dri_image =
984 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
985 attrs.Width,
986 attrs.Height,
987 format,
988 name,
989 pitch,
990 dri2_img);
991 if (dri2_img->dri_image == NULL) {
992 free(dri2_img);
993 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
994 return NULL;
995 }
996
997 return &dri2_img->base;
998 }
999
1000 #ifdef HAVE_WAYLAND_PLATFORM
1001 static _EGLImage *
1002 dri2_reference_drm_image(_EGLDisplay *disp, _EGLContext *ctx,
1003 __DRIimage *dri_image, EGLint width, EGLint height)
1004 {
1005 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1006 EGLint attr_list[] = {
1007 EGL_WIDTH, 0,
1008 EGL_HEIGHT, 0,
1009 EGL_DRM_BUFFER_STRIDE_MESA, 0,
1010 EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
1011 EGL_NONE
1012 };
1013 EGLint name, stride;
1014
1015 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_NAME, &name);
1016 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
1017
1018 attr_list[1] = width;
1019 attr_list[3] = height;
1020 attr_list[5] = stride / 4;
1021
1022 return dri2_create_image_mesa_drm_buffer(disp, ctx,
1023 (EGLClientBuffer)(intptr_t) name,
1024 attr_list);
1025 }
1026
1027 static _EGLImage *
1028 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1029 EGLClientBuffer _buffer,
1030 const EGLint *attr_list)
1031 {
1032 struct wl_buffer *buffer = (struct wl_buffer *) _buffer;
1033 (void) attr_list;
1034
1035 if (!wayland_buffer_is_drm(buffer))
1036 return NULL;
1037
1038 return dri2_reference_drm_image(disp, ctx,
1039 wayland_drm_buffer_get_buffer(buffer),
1040 buffer->width,
1041 buffer->height);
1042 }
1043 #endif
1044
1045 _EGLImage *
1046 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1047 _EGLContext *ctx, EGLenum target,
1048 EGLClientBuffer buffer, const EGLint *attr_list)
1049 {
1050 (void) drv;
1051
1052 switch (target) {
1053 case EGL_GL_RENDERBUFFER_KHR:
1054 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1055 case EGL_DRM_BUFFER_MESA:
1056 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1057 #ifdef HAVE_WAYLAND_PLATFORM
1058 case EGL_WAYLAND_BUFFER_WL:
1059 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1060 #endif
1061 default:
1062 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1063 return EGL_NO_IMAGE_KHR;
1064 }
1065 }
1066
1067 static EGLBoolean
1068 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1069 {
1070 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1071 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1072
1073 (void) drv;
1074
1075 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1076 free(dri2_img);
1077
1078 return EGL_TRUE;
1079 }
1080
1081 static _EGLImage *
1082 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1083 const EGLint *attr_list)
1084 {
1085 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1086 struct dri2_egl_image *dri2_img;
1087 _EGLImageAttribs attrs;
1088 unsigned int dri_use, valid_mask;
1089 int format;
1090 EGLint err = EGL_SUCCESS;
1091
1092 (void) drv;
1093
1094 dri2_img = malloc(sizeof *dri2_img);
1095 if (!dri2_img) {
1096 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1097 return EGL_NO_IMAGE_KHR;
1098 }
1099
1100 if (!attr_list) {
1101 err = EGL_BAD_PARAMETER;
1102 goto cleanup_img;
1103 }
1104
1105 if (!_eglInitImage(&dri2_img->base, disp)) {
1106 err = EGL_BAD_PARAMETER;
1107 goto cleanup_img;
1108 }
1109
1110 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1111 if (err != EGL_SUCCESS)
1112 goto cleanup_img;
1113
1114 if (attrs.Width <= 0 || attrs.Height <= 0) {
1115 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1116 attrs.Width, attrs.Height);
1117 goto cleanup_img;
1118 }
1119
1120 switch (attrs.DRMBufferFormatMESA) {
1121 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1122 format = __DRI_IMAGE_FORMAT_ARGB8888;
1123 break;
1124 default:
1125 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1126 attrs.DRMBufferFormatMESA);
1127 goto cleanup_img;
1128 }
1129
1130 valid_mask =
1131 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1132 EGL_DRM_BUFFER_USE_SHARE_MESA |
1133 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1134 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1135 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1136 attrs.DRMBufferUseMESA & ~valid_mask);
1137 goto cleanup_img;
1138 }
1139
1140 dri_use = 0;
1141 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1142 dri_use |= __DRI_IMAGE_USE_SHARE;
1143 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1144 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1145 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1146 dri_use |= __DRI_IMAGE_USE_CURSOR;
1147
1148 dri2_img->dri_image =
1149 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1150 attrs.Width, attrs.Height,
1151 format, dri_use, dri2_img);
1152 if (dri2_img->dri_image == NULL) {
1153 err = EGL_BAD_ALLOC;
1154 goto cleanup_img;
1155 }
1156
1157 return &dri2_img->base;
1158
1159 cleanup_img:
1160 free(dri2_img);
1161 _eglError(err, "dri2_create_drm_image_mesa");
1162
1163 return EGL_NO_IMAGE_KHR;
1164 }
1165
1166 static EGLBoolean
1167 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1168 EGLint *name, EGLint *handle, EGLint *stride)
1169 {
1170 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1171 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1172
1173 (void) drv;
1174
1175 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1176 __DRI_IMAGE_ATTRIB_NAME, name)) {
1177 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1178 return EGL_FALSE;
1179 }
1180
1181 if (handle)
1182 dri2_dpy->image->queryImage(dri2_img->dri_image,
1183 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1184
1185 if (stride)
1186 dri2_dpy->image->queryImage(dri2_img->dri_image,
1187 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1188
1189 return EGL_TRUE;
1190 }
1191
1192 #ifdef HAVE_WAYLAND_PLATFORM
1193
1194 static void *
1195 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1196 int32_t width, int32_t height,
1197 uint32_t stride, struct wl_visual *visual)
1198 {
1199 _EGLDisplay *disp = user_data;
1200 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1201 __DRIimage *image;
1202
1203 image = dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1204 width, height,
1205 __DRI_IMAGE_FORMAT_ARGB8888,
1206 name, stride / 4,
1207 NULL);
1208
1209 return image;
1210 }
1211
1212 static void
1213 dri2_wl_release_buffer(void *user_data, void *buffer)
1214 {
1215 _EGLDisplay *disp = user_data;
1216 __DRIimage *image = buffer;
1217 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1218
1219 dri2_dpy->image->destroyImage(image);
1220 }
1221
1222 static struct wayland_drm_callbacks wl_drm_callbacks = {
1223 .authenticate = NULL,
1224 .reference_buffer = dri2_wl_reference_buffer,
1225 .release_buffer = dri2_wl_release_buffer
1226 };
1227
1228 static EGLBoolean
1229 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1230 struct wl_display *wl_dpy)
1231 {
1232 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1233
1234 (void) drv;
1235
1236 if (dri2_dpy->wl_server_drm)
1237 return EGL_FALSE;
1238
1239 wl_drm_callbacks.authenticate =
1240 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1241
1242 dri2_dpy->wl_server_drm =
1243 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1244 &wl_drm_callbacks, disp);
1245
1246 if (!dri2_dpy->wl_server_drm)
1247 return EGL_FALSE;
1248
1249 return EGL_TRUE;
1250 }
1251
1252 static EGLBoolean
1253 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1254 struct wl_display *wl_dpy)
1255 {
1256 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1257
1258 (void) drv;
1259
1260 if (!dri2_dpy->wl_server_drm)
1261 return EGL_FALSE;
1262
1263 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1264 dri2_dpy->wl_server_drm = NULL;
1265
1266 return EGL_TRUE;
1267 }
1268 #endif
1269
1270 static void
1271 dri2_unload(_EGLDriver *drv)
1272 {
1273 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1274
1275 if (dri2_drv->handle)
1276 dlclose(dri2_drv->handle);
1277 free(dri2_drv);
1278 }
1279
1280 static EGLBoolean
1281 dri2_load(_EGLDriver *drv)
1282 {
1283 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1284 #ifdef HAVE_SHARED_GLAPI
1285 const char *libname = "libglapi.so.0";
1286 #else
1287 /*
1288 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1289 * tell which one to load.
1290 */
1291 const char *libname = NULL;
1292 #endif
1293 void *handle;
1294
1295 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1296 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1297 if (handle) {
1298 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1299 dlsym(handle, "_glapi_get_proc_address");
1300 if (!dri2_drv->get_proc_address || !libname) {
1301 /* no need to keep a reference */
1302 dlclose(handle);
1303 handle = NULL;
1304 }
1305 }
1306
1307 /* if glapi is not available, loading DRI drivers will fail */
1308 if (!dri2_drv->get_proc_address) {
1309 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1310 return EGL_FALSE;
1311 }
1312
1313 dri2_drv->glFlush = (void (*)(void))
1314 dri2_drv->get_proc_address("glFlush");
1315
1316 dri2_drv->handle = handle;
1317
1318 return EGL_TRUE;
1319 }
1320
1321 /**
1322 * This is the main entrypoint into the driver, called by libEGL.
1323 * Create a new _EGLDriver object and init its dispatch table.
1324 */
1325 _EGLDriver *
1326 _EGL_MAIN(const char *args)
1327 {
1328 struct dri2_egl_driver *dri2_drv;
1329
1330 (void) args;
1331
1332 dri2_drv = malloc(sizeof *dri2_drv);
1333 if (!dri2_drv)
1334 return NULL;
1335
1336 memset(dri2_drv, 0, sizeof *dri2_drv);
1337
1338 if (!dri2_load(&dri2_drv->base))
1339 return NULL;
1340
1341 _eglInitDriverFallbacks(&dri2_drv->base);
1342 dri2_drv->base.API.Initialize = dri2_initialize;
1343 dri2_drv->base.API.Terminate = dri2_terminate;
1344 dri2_drv->base.API.CreateContext = dri2_create_context;
1345 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1346 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1347 dri2_drv->base.API.WaitClient = dri2_wait_client;
1348 dri2_drv->base.API.WaitNative = dri2_wait_native;
1349 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1350 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1351 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1352 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1353 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1354 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1355 #ifdef HAVE_WAYLAND_PLATFORM
1356 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1357 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1358 #endif
1359
1360 dri2_drv->base.Name = "DRI2";
1361 dri2_drv->base.Unload = dri2_unload;
1362
1363 return &dri2_drv->base;
1364 }