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egl: bring back the default glapi.so name
[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 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include "GL/mesa_glinterop.h"
50 #include <sys/types.h>
51 #include <sys/stat.h>
52
53 #ifdef HAVE_WAYLAND_PLATFORM
54 #include "wayland-drm.h"
55 #include "wayland-drm-client-protocol.h"
56 #endif
57
58 #include "egl_dri2.h"
59 #include "util/u_atomic.h"
60
61 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
62 * some of the definitions here so that building Mesa won't bleeding-edge
63 * kernel headers.
64 */
65 #ifndef DRM_FORMAT_R8
66 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
67 #endif
68
69 #ifndef DRM_FORMAT_RG88
70 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
71 #endif
72
73 #ifndef DRM_FORMAT_GR88
74 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
75 #endif
76
77 const __DRIuseInvalidateExtension use_invalidate = {
78 .base = { __DRI_USE_INVALIDATE, 1 }
79 };
80
81 EGLint dri2_to_egl_attribute_map[] = {
82 0,
83 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
84 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
85 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
86 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
87 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
88 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
89 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
90 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
91 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
92 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
93 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
94 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
95 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
96 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
97 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
98 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
99 0, /* __DRI_ATTRIB_RENDER_TYPE, */
100 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
101 0, /* __DRI_ATTRIB_CONFORMANT */
102 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
103 0, /* __DRI_ATTRIB_STEREO */
104 0, /* __DRI_ATTRIB_AUX_BUFFERS */
105 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
106 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
108 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
109 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
110 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
111 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
112 0, /* __DRI_ATTRIB_RED_MASK */
113 0, /* __DRI_ATTRIB_GREEN_MASK */
114 0, /* __DRI_ATTRIB_BLUE_MASK */
115 0, /* __DRI_ATTRIB_ALPHA_MASK */
116 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
117 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
118 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
119 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
120 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
121 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
122 0, /* __DRI_ATTRIB_SWAP_METHOD */
123 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
124 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
125 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
126 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
127 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
128 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
129 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
130 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
131 };
132
133 const __DRIconfig *
134 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
135 EGLenum colorspace)
136 {
137 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
138
139 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
140 conf->dri_single_config[srgb];
141 }
142
143 static EGLBoolean
144 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
145 {
146 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
147 return EGL_FALSE;
148
149 if (!_eglMatchConfig(conf, criteria))
150 return EGL_FALSE;
151
152 return EGL_TRUE;
153 }
154
155 struct dri2_egl_config *
156 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
157 EGLint surface_type, const EGLint *attr_list,
158 const unsigned int *rgba_masks)
159 {
160 struct dri2_egl_config *conf;
161 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
162 _EGLConfig base;
163 unsigned int attrib, value, double_buffer;
164 bool srgb = false;
165 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
166 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
167 _EGLConfig *matching_config;
168 EGLint num_configs = 0;
169 EGLint config_id;
170 int i;
171
172 _eglInitConfig(&base, disp, id);
173
174 i = 0;
175 double_buffer = 0;
176 bind_to_texture_rgb = 0;
177 bind_to_texture_rgba = 0;
178
179 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
180 switch (attrib) {
181 case __DRI_ATTRIB_RENDER_TYPE:
182 if (value & __DRI_ATTRIB_RGBA_BIT)
183 value = EGL_RGB_BUFFER;
184 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
185 value = EGL_LUMINANCE_BUFFER;
186 else
187 return NULL;
188 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
189 break;
190
191 case __DRI_ATTRIB_CONFIG_CAVEAT:
192 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
193 value = EGL_NON_CONFORMANT_CONFIG;
194 else if (value & __DRI_ATTRIB_SLOW_BIT)
195 value = EGL_SLOW_CONFIG;
196 else
197 value = EGL_NONE;
198 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
199 break;
200
201 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
202 bind_to_texture_rgb = value;
203 break;
204
205 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
206 bind_to_texture_rgba = value;
207 break;
208
209 case __DRI_ATTRIB_DOUBLE_BUFFER:
210 double_buffer = value;
211 break;
212
213 case __DRI_ATTRIB_RED_MASK:
214 dri_masks[0] = value;
215 break;
216
217 case __DRI_ATTRIB_GREEN_MASK:
218 dri_masks[1] = value;
219 break;
220
221 case __DRI_ATTRIB_BLUE_MASK:
222 dri_masks[2] = value;
223 break;
224
225 case __DRI_ATTRIB_ALPHA_MASK:
226 dri_masks[3] = value;
227 break;
228
229 case __DRI_ATTRIB_ACCUM_RED_SIZE:
230 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
231 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
232 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
233 /* Don't expose visuals with the accumulation buffer. */
234 if (value > 0)
235 return NULL;
236 break;
237
238 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
239 srgb = value != 0;
240 if (!disp->Extensions.KHR_gl_colorspace && srgb)
241 return NULL;
242 break;
243
244 default:
245 key = dri2_to_egl_attribute_map[attrib];
246 if (key != 0)
247 _eglSetConfigKey(&base, key, value);
248 break;
249 }
250 }
251
252 if (attr_list)
253 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
254 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
255
256 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
257 return NULL;
258
259 base.NativeRenderable = EGL_TRUE;
260
261 base.SurfaceType = surface_type;
262 if (surface_type & (EGL_PBUFFER_BIT |
263 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
264 base.BindToTextureRGB = bind_to_texture_rgb;
265 if (base.AlphaSize > 0)
266 base.BindToTextureRGBA = bind_to_texture_rgba;
267 }
268
269 base.RenderableType = disp->ClientAPIs;
270 base.Conformant = disp->ClientAPIs;
271
272 base.MinSwapInterval = dri2_dpy->min_swap_interval;
273 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
274
275 if (!_eglValidateConfig(&base, EGL_FALSE)) {
276 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
277 return NULL;
278 }
279
280 config_id = base.ConfigID;
281 base.ConfigID = EGL_DONT_CARE;
282 base.SurfaceType = EGL_DONT_CARE;
283 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
284 (_EGLArrayForEach) dri2_match_config, &base);
285
286 if (num_configs == 1) {
287 conf = (struct dri2_egl_config *) matching_config;
288
289 if (double_buffer && !conf->dri_double_config[srgb])
290 conf->dri_double_config[srgb] = dri_config;
291 else if (!double_buffer && !conf->dri_single_config[srgb])
292 conf->dri_single_config[srgb] = dri_config;
293 else
294 /* a similar config type is already added (unlikely) => discard */
295 return NULL;
296 }
297 else if (num_configs == 0) {
298 conf = calloc(1, sizeof *conf);
299 if (conf == NULL)
300 return NULL;
301
302 if (double_buffer)
303 conf->dri_double_config[srgb] = dri_config;
304 else
305 conf->dri_single_config[srgb] = dri_config;
306
307 memcpy(&conf->base, &base, sizeof base);
308 conf->base.SurfaceType = 0;
309 conf->base.ConfigID = config_id;
310
311 _eglLinkConfig(&conf->base);
312 }
313 else {
314 assert(0);
315 return NULL;
316 }
317
318 if (double_buffer) {
319 surface_type &= ~EGL_PIXMAP_BIT;
320 }
321
322 /* No support for pbuffer + MSAA for now.
323 *
324 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
325 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
326 */
327 if (base.Samples) {
328 surface_type &= ~EGL_PBUFFER_BIT;
329 }
330
331 conf->base.SurfaceType |= surface_type;
332
333 return conf;
334 }
335
336 __DRIimage *
337 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
338 {
339 _EGLDisplay *disp = data;
340 struct dri2_egl_image *dri2_img;
341 _EGLImage *img;
342
343 (void) screen;
344
345 img = _eglLookupImage(image, disp);
346 if (img == NULL) {
347 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
348 return NULL;
349 }
350
351 dri2_img = dri2_egl_image(image);
352
353 return dri2_img->dri_image;
354 }
355
356 const __DRIimageLookupExtension image_lookup_extension = {
357 .base = { __DRI_IMAGE_LOOKUP, 1 },
358
359 .lookupEGLImage = dri2_lookup_egl_image
360 };
361
362 struct dri2_extension_match {
363 const char *name;
364 int version;
365 int offset;
366 };
367
368 static const struct dri2_extension_match dri3_driver_extensions[] = {
369 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
370 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
371 { NULL, 0, 0 }
372 };
373
374 static const struct dri2_extension_match dri2_driver_extensions[] = {
375 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
376 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
377 { NULL, 0, 0 }
378 };
379
380 static const struct dri2_extension_match dri2_core_extensions[] = {
381 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
382 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
383 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
384 { NULL, 0, 0 }
385 };
386
387 static const struct dri2_extension_match swrast_driver_extensions[] = {
388 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
389 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
390 { NULL, 0, 0 }
391 };
392
393 static const struct dri2_extension_match swrast_core_extensions[] = {
394 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
395 { NULL, 0, 0 }
396 };
397
398 static const struct dri2_extension_match optional_core_extensions[] = {
399 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
400 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
401 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
402 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
403 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
404 { NULL, 0, 0 }
405 };
406
407 static EGLBoolean
408 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
409 const struct dri2_extension_match *matches,
410 const __DRIextension **extensions,
411 bool optional)
412 {
413 int i, j, ret = EGL_TRUE;
414 void *field;
415
416 for (i = 0; extensions[i]; i++) {
417 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
418 for (j = 0; matches[j].name; j++) {
419 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
420 extensions[i]->version >= matches[j].version) {
421 field = ((char *) dri2_dpy + matches[j].offset);
422 *(const __DRIextension **) field = extensions[i];
423 _eglLog(_EGL_INFO, "found extension %s version %d",
424 extensions[i]->name, extensions[i]->version);
425 break;
426 }
427 }
428 }
429
430 for (j = 0; matches[j].name; j++) {
431 field = ((char *) dri2_dpy + matches[j].offset);
432 if (*(const __DRIextension **) field == NULL) {
433 if (optional) {
434 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
435 matches[j].name, matches[j].version);
436 } else {
437 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
438 matches[j].name, matches[j].version);
439 ret = EGL_FALSE;
440 }
441 }
442 }
443
444 return ret;
445 }
446
447 static const __DRIextension **
448 dri2_open_driver(_EGLDisplay *disp)
449 {
450 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
451 const __DRIextension **extensions = NULL;
452 char path[PATH_MAX], *search_paths, *p, *next, *end;
453 char *get_extensions_name;
454 const __DRIextension **(*get_extensions)(void);
455
456 search_paths = NULL;
457 if (geteuid() == getuid()) {
458 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
459 search_paths = getenv("LIBGL_DRIVERS_PATH");
460 }
461 if (search_paths == NULL)
462 search_paths = DEFAULT_DRIVER_DIR;
463
464 dri2_dpy->driver = NULL;
465 end = search_paths + strlen(search_paths);
466 for (p = search_paths; p < end; p = next + 1) {
467 int len;
468 next = strchr(p, ':');
469 if (next == NULL)
470 next = end;
471
472 len = next - p;
473 #if GLX_USE_TLS
474 snprintf(path, sizeof path,
475 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
476 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
477 #endif
478 if (dri2_dpy->driver == NULL) {
479 snprintf(path, sizeof path,
480 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
481 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
482 if (dri2_dpy->driver == NULL)
483 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
484 }
485 /* not need continue to loop all paths once the driver is found */
486 if (dri2_dpy->driver != NULL)
487 break;
488
489 #ifdef ANDROID
490 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
491 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
492 if (dri2_dpy->driver == NULL)
493 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
494 else
495 break;
496 #endif
497 }
498
499 if (dri2_dpy->driver == NULL) {
500 _eglLog(_EGL_WARNING,
501 "DRI2: failed to open %s (search paths %s)",
502 dri2_dpy->driver_name, search_paths);
503 return NULL;
504 }
505
506 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
507
508 if (asprintf(&get_extensions_name, "%s_%s",
509 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
510 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
511 if (get_extensions) {
512 extensions = get_extensions();
513 } else {
514 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
515 get_extensions_name, dlerror());
516 }
517 free(get_extensions_name);
518 }
519
520 if (!extensions)
521 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
522 if (extensions == NULL) {
523 _eglLog(_EGL_WARNING,
524 "DRI2: driver exports no extensions (%s)", dlerror());
525 dlclose(dri2_dpy->driver);
526 }
527
528 return extensions;
529 }
530
531 EGLBoolean
532 dri2_load_driver_dri3(_EGLDisplay *disp)
533 {
534 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
535 const __DRIextension **extensions;
536
537 extensions = dri2_open_driver(disp);
538 if (!extensions)
539 return EGL_FALSE;
540
541 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
542 dlclose(dri2_dpy->driver);
543 return EGL_FALSE;
544 }
545 dri2_dpy->driver_extensions = extensions;
546
547 return EGL_TRUE;
548 }
549
550 EGLBoolean
551 dri2_load_driver(_EGLDisplay *disp)
552 {
553 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
554 const __DRIextension **extensions;
555
556 extensions = dri2_open_driver(disp);
557 if (!extensions)
558 return EGL_FALSE;
559
560 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
561 dlclose(dri2_dpy->driver);
562 return EGL_FALSE;
563 }
564 dri2_dpy->driver_extensions = extensions;
565
566 return EGL_TRUE;
567 }
568
569 EGLBoolean
570 dri2_load_driver_swrast(_EGLDisplay *disp)
571 {
572 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
573 const __DRIextension **extensions;
574
575 extensions = dri2_open_driver(disp);
576 if (!extensions)
577 return EGL_FALSE;
578
579 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
580 dlclose(dri2_dpy->driver);
581 return EGL_FALSE;
582 }
583 dri2_dpy->driver_extensions = extensions;
584
585 return EGL_TRUE;
586 }
587
588 static unsigned
589 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
590 {
591 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
592 unsigned int value = 0;
593
594 if (!rendererQuery ||
595 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
596 return 0;
597
598 return value;
599 }
600
601 void
602 dri2_setup_screen(_EGLDisplay *disp)
603 {
604 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
605 unsigned int api_mask;
606
607 if (dri2_dpy->image_driver) {
608 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
609 } else if (dri2_dpy->dri2) {
610 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
611 } else {
612 assert(dri2_dpy->swrast);
613 api_mask = 1 << __DRI_API_OPENGL |
614 1 << __DRI_API_GLES |
615 1 << __DRI_API_GLES2 |
616 1 << __DRI_API_GLES3;
617 }
618
619 disp->ClientAPIs = 0;
620 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
621 disp->ClientAPIs |= EGL_OPENGL_BIT;
622 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
623 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
624 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
625 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
626 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
627 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
628
629 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
630 disp->Extensions.KHR_no_config_context = EGL_TRUE;
631 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
632
633 if (dri2_renderer_query_integer(dri2_dpy,
634 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
635 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
636
637 if (dri2_dpy->image_driver ||
638 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
639 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
640 disp->Extensions.KHR_create_context = EGL_TRUE;
641
642 if (dri2_dpy->robustness)
643 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
644 }
645
646 if (dri2_dpy->fence) {
647 disp->Extensions.KHR_fence_sync = EGL_TRUE;
648 disp->Extensions.KHR_wait_sync = EGL_TRUE;
649 if (dri2_dpy->fence->get_fence_from_cl_event)
650 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
651 }
652
653 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
654
655 if (dri2_dpy->image) {
656 if (dri2_dpy->image->base.version >= 10 &&
657 dri2_dpy->image->getCapabilities != NULL) {
658 int capabilities;
659
660 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
661 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
662
663 if (dri2_dpy->image->base.version >= 11)
664 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
665 } else {
666 disp->Extensions.MESA_drm_image = EGL_TRUE;
667 if (dri2_dpy->image->base.version >= 11)
668 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
669 }
670
671 disp->Extensions.KHR_image_base = EGL_TRUE;
672 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
673 if (dri2_dpy->image->base.version >= 5 &&
674 dri2_dpy->image->createImageFromTexture) {
675 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
676 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
677 }
678 if (dri2_renderer_query_integer(dri2_dpy,
679 __DRI2_RENDERER_HAS_TEXTURE_3D))
680 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
681 #ifdef HAVE_LIBDRM
682 if (dri2_dpy->image->base.version >= 8 &&
683 dri2_dpy->image->createImageFromDmaBufs) {
684 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
685 }
686 #endif
687 }
688 }
689
690 /* All platforms but DRM call this function to create the screen, query the
691 * dri extensions, setup the vtables and populate the driver_configs.
692 * DRM inherits all that information from its display - GBM.
693 */
694 EGLBoolean
695 dri2_create_screen(_EGLDisplay *disp)
696 {
697 const __DRIextension **extensions;
698 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
699
700 if (dri2_dpy->image_driver) {
701 dri2_dpy->dri_screen =
702 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
703 dri2_dpy->loader_extensions,
704 dri2_dpy->driver_extensions,
705 &dri2_dpy->driver_configs,
706 disp);
707 } else if (dri2_dpy->dri2) {
708 if (dri2_dpy->dri2->base.version >= 4) {
709 dri2_dpy->dri_screen =
710 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
711 dri2_dpy->loader_extensions,
712 dri2_dpy->driver_extensions,
713 &dri2_dpy->driver_configs, disp);
714 } else {
715 dri2_dpy->dri_screen =
716 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
717 dri2_dpy->loader_extensions,
718 &dri2_dpy->driver_configs, disp);
719 }
720 } else {
721 assert(dri2_dpy->swrast);
722 if (dri2_dpy->swrast->base.version >= 4) {
723 dri2_dpy->dri_screen =
724 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
725 dri2_dpy->driver_extensions,
726 &dri2_dpy->driver_configs, disp);
727 } else {
728 dri2_dpy->dri_screen =
729 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
730 &dri2_dpy->driver_configs, disp);
731 }
732 }
733
734 if (dri2_dpy->dri_screen == NULL) {
735 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
736 return EGL_FALSE;
737 }
738
739 dri2_dpy->own_dri_screen = 1;
740
741 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
742
743 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
744 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions, false))
745 goto cleanup_dri_screen;
746 } else {
747 assert(dri2_dpy->swrast);
748 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions, false))
749 goto cleanup_dri_screen;
750 }
751
752 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
753 dri2_setup_screen(disp);
754
755 return EGL_TRUE;
756
757 cleanup_dri_screen:
758 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
759
760 return EGL_FALSE;
761 }
762
763 /**
764 * Called via eglInitialize(), GLX_drv->API.Initialize().
765 *
766 * This must be guaranteed to be called exactly once, even if eglInitialize is
767 * called many times (without a eglTerminate in between).
768 */
769 static EGLBoolean
770 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
771 {
772 EGLBoolean ret = EGL_FALSE;
773 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
774
775 /* In the case where the application calls eglMakeCurrent(context1),
776 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
777 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
778 * initialized, as we need it to be able to free context1 correctly.
779 *
780 * It would probably be safest to forcibly release the display with
781 * dri2_display_release, to make sure the display is reinitialized correctly.
782 * However, the EGL spec states that we need to keep a reference to the
783 * current context (so we cannot call dri2_make_current(NULL)), and therefore
784 * we would leak context1 as we would be missing the old display connection
785 * to free it up correctly.
786 */
787 if (dri2_dpy) {
788 dri2_dpy->ref_count++;
789 return EGL_TRUE;
790 }
791
792 /* not until swrast_dri is supported */
793 if (disp->Options.UseFallback)
794 return EGL_FALSE;
795
796 /* Nothing to initialize for a test only display */
797 if (disp->Options.TestOnly)
798 return EGL_TRUE;
799
800 switch (disp->Platform) {
801 #ifdef HAVE_SURFACELESS_PLATFORM
802 case _EGL_PLATFORM_SURFACELESS:
803 ret = dri2_initialize_surfaceless(drv, disp);
804 break;
805 #endif
806 #ifdef HAVE_X11_PLATFORM
807 case _EGL_PLATFORM_X11:
808 ret = dri2_initialize_x11(drv, disp);
809 break;
810 #endif
811 #ifdef HAVE_DRM_PLATFORM
812 case _EGL_PLATFORM_DRM:
813 ret = dri2_initialize_drm(drv, disp);
814 break;
815 #endif
816 #ifdef HAVE_WAYLAND_PLATFORM
817 case _EGL_PLATFORM_WAYLAND:
818 ret = dri2_initialize_wayland(drv, disp);
819 break;
820 #endif
821 #ifdef HAVE_ANDROID_PLATFORM
822 case _EGL_PLATFORM_ANDROID:
823 ret = dri2_initialize_android(drv, disp);
824 break;
825 #endif
826 default:
827 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
828 return EGL_FALSE;
829 }
830
831 if (ret) {
832 dri2_dpy = dri2_egl_display(disp);
833
834 if (!dri2_dpy) {
835 return EGL_FALSE;
836 }
837
838 dri2_dpy->ref_count++;
839 }
840
841 return ret;
842 }
843
844 /**
845 * Decrement display reference count, and free up display if necessary.
846 */
847 static void
848 dri2_display_release(_EGLDisplay *disp)
849 {
850 struct dri2_egl_display *dri2_dpy;
851 unsigned i;
852
853 if (!disp)
854 return;
855
856 dri2_dpy = dri2_egl_display(disp);
857
858 assert(dri2_dpy->ref_count > 0);
859 dri2_dpy->ref_count--;
860
861 if (dri2_dpy->ref_count > 0)
862 return;
863
864 _eglCleanupDisplay(disp);
865
866 if (dri2_dpy->own_dri_screen)
867 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
868 if (dri2_dpy->fd >= 0)
869 close(dri2_dpy->fd);
870 if (dri2_dpy->driver)
871 dlclose(dri2_dpy->driver);
872 free(dri2_dpy->driver_name);
873
874 #ifdef HAVE_WAYLAND_PLATFORM
875 free(dri2_dpy->device_name);
876 #endif
877
878 switch (disp->Platform) {
879 #ifdef HAVE_X11_PLATFORM
880 case _EGL_PLATFORM_X11:
881 if (dri2_dpy->own_device) {
882 xcb_disconnect(dri2_dpy->conn);
883 }
884 break;
885 #endif
886 #ifdef HAVE_DRM_PLATFORM
887 case _EGL_PLATFORM_DRM:
888 if (dri2_dpy->own_device) {
889 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
890 }
891 break;
892 #endif
893 #ifdef HAVE_WAYLAND_PLATFORM
894 case _EGL_PLATFORM_WAYLAND:
895 if (dri2_dpy->wl_drm)
896 wl_drm_destroy(dri2_dpy->wl_drm);
897 if (dri2_dpy->wl_shm)
898 wl_shm_destroy(dri2_dpy->wl_shm);
899 wl_registry_destroy(dri2_dpy->wl_registry);
900 wl_event_queue_destroy(dri2_dpy->wl_queue);
901 if (dri2_dpy->own_device) {
902 wl_display_disconnect(dri2_dpy->wl_dpy);
903 }
904 break;
905 #endif
906 default:
907 break;
908 }
909
910 /* The drm platform does not create the screen/driver_configs but reuses
911 * the ones from the gbm device. As such the gbm itself is responsible
912 * for the cleanup.
913 */
914 if (disp->Platform != _EGL_PLATFORM_DRM) {
915 for (i = 0; dri2_dpy->driver_configs[i]; i++)
916 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
917 free(dri2_dpy->driver_configs);
918 }
919 free(dri2_dpy);
920 disp->DriverData = NULL;
921 }
922
923 /**
924 * Called via eglTerminate(), drv->API.Terminate().
925 *
926 * This must be guaranteed to be called exactly once, even if eglTerminate is
927 * called many times (without a eglInitialize in between).
928 */
929 static EGLBoolean
930 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
931 {
932 /* Release all non-current Context/Surfaces. */
933 _eglReleaseDisplayResources(drv, disp);
934
935 dri2_display_release(disp);
936
937 return EGL_TRUE;
938 }
939
940 /**
941 * Set the error code after a call to
942 * dri2_egl_display::dri2::createContextAttribs.
943 */
944 static void
945 dri2_create_context_attribs_error(int dri_error)
946 {
947 EGLint egl_error;
948
949 switch (dri_error) {
950 case __DRI_CTX_ERROR_SUCCESS:
951 return;
952
953 case __DRI_CTX_ERROR_NO_MEMORY:
954 egl_error = EGL_BAD_ALLOC;
955 break;
956
957 /* From the EGL_KHR_create_context spec, section "Errors":
958 *
959 * * If <config> does not support a client API context compatible
960 * with the requested API major and minor version, [...] context flags,
961 * and context reset notification behavior (for client API types where
962 * these attributes are supported), then an EGL_BAD_MATCH error is
963 * generated.
964 *
965 * * If an OpenGL ES context is requested and the values for
966 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
967 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
968 * is not defined, than an EGL_BAD_MATCH error is generated.
969 *
970 * * If an OpenGL context is requested, the requested version is
971 * greater than 3.2, and the value for attribute
972 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
973 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
974 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
975 * one of these bits set; or if the implementation does not support
976 * the requested profile, then an EGL_BAD_MATCH error is generated.
977 */
978 case __DRI_CTX_ERROR_BAD_API:
979 case __DRI_CTX_ERROR_BAD_VERSION:
980 case __DRI_CTX_ERROR_BAD_FLAG:
981 egl_error = EGL_BAD_MATCH;
982 break;
983
984 /* From the EGL_KHR_create_context spec, section "Errors":
985 *
986 * * If an attribute name or attribute value in <attrib_list> is not
987 * recognized (including unrecognized bits in bitmask attributes),
988 * then an EGL_BAD_ATTRIBUTE error is generated."
989 */
990 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
991 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
992 egl_error = EGL_BAD_ATTRIBUTE;
993 break;
994
995 default:
996 assert(0);
997 egl_error = EGL_BAD_MATCH;
998 break;
999 }
1000
1001 _eglError(egl_error, "dri2_create_context");
1002 }
1003
1004 static bool
1005 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1006 struct dri2_egl_display *dri2_dpy,
1007 uint32_t *ctx_attribs,
1008 unsigned *num_attribs)
1009 {
1010 int pos = 0;
1011
1012 assert(*num_attribs >= 8);
1013
1014 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1015 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1016 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1017 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1018
1019 if (dri2_ctx->base.Flags != 0) {
1020 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1021 * extension, don't even try to send it the robust-access flag.
1022 * It may explode. Instead, generate the required EGL error here.
1023 */
1024 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1025 && !dri2_dpy->robustness) {
1026 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1027 return false;
1028 }
1029
1030 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1031 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1032 }
1033
1034 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1035 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1036 * extension, don't even try to send it a reset strategy. It may
1037 * explode. Instead, generate the required EGL error here.
1038 */
1039 if (!dri2_dpy->robustness) {
1040 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1041 return false;
1042 }
1043
1044 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1045 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1046 }
1047
1048 *num_attribs = pos;
1049
1050 return true;
1051 }
1052
1053 /**
1054 * Called via eglCreateContext(), drv->API.CreateContext().
1055 */
1056 static _EGLContext *
1057 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1058 _EGLContext *share_list, const EGLint *attrib_list)
1059 {
1060 struct dri2_egl_context *dri2_ctx;
1061 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1062 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1063 __DRIcontext *shared =
1064 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1065 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1066 const __DRIconfig *dri_config;
1067 int api;
1068
1069 (void) drv;
1070
1071 dri2_ctx = malloc(sizeof *dri2_ctx);
1072 if (!dri2_ctx) {
1073 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1074 return NULL;
1075 }
1076
1077 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1078 goto cleanup;
1079
1080 switch (dri2_ctx->base.ClientAPI) {
1081 case EGL_OPENGL_ES_API:
1082 switch (dri2_ctx->base.ClientMajorVersion) {
1083 case 1:
1084 api = __DRI_API_GLES;
1085 break;
1086 case 2:
1087 api = __DRI_API_GLES2;
1088 break;
1089 case 3:
1090 api = __DRI_API_GLES3;
1091 break;
1092 default:
1093 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1094 free(dri2_ctx);
1095 return NULL;
1096 }
1097 break;
1098 case EGL_OPENGL_API:
1099 if ((dri2_ctx->base.ClientMajorVersion >= 4
1100 || (dri2_ctx->base.ClientMajorVersion == 3
1101 && dri2_ctx->base.ClientMinorVersion >= 2))
1102 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1103 api = __DRI_API_OPENGL_CORE;
1104 else
1105 api = __DRI_API_OPENGL;
1106 break;
1107 default:
1108 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1109 free(dri2_ctx);
1110 return NULL;
1111 }
1112
1113 if (conf != NULL) {
1114 /* The config chosen here isn't necessarily
1115 * used for surfaces later.
1116 * A pixmap surface will use the single config.
1117 * This opportunity depends on disabling the
1118 * doubleBufferMode check in
1119 * src/mesa/main/context.c:check_compatible()
1120 */
1121 if (dri2_config->dri_double_config[0])
1122 dri_config = dri2_config->dri_double_config[0];
1123 else
1124 dri_config = dri2_config->dri_single_config[0];
1125
1126 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1127 * makes sure the back buffer will always be used.
1128 */
1129 if (conf->SurfaceType & EGL_WINDOW_BIT)
1130 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1131 }
1132 else
1133 dri_config = NULL;
1134
1135 if (dri2_dpy->image_driver) {
1136 unsigned error;
1137 unsigned num_attribs = 8;
1138 uint32_t ctx_attribs[8];
1139
1140 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1141 &num_attribs))
1142 goto cleanup;
1143
1144 dri2_ctx->dri_context =
1145 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1146 api,
1147 dri_config,
1148 shared,
1149 num_attribs / 2,
1150 ctx_attribs,
1151 & error,
1152 dri2_ctx);
1153 dri2_create_context_attribs_error(error);
1154 } else if (dri2_dpy->dri2) {
1155 if (dri2_dpy->dri2->base.version >= 3) {
1156 unsigned error;
1157 unsigned num_attribs = 8;
1158 uint32_t ctx_attribs[8];
1159
1160 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1161 &num_attribs))
1162 goto cleanup;
1163
1164 dri2_ctx->dri_context =
1165 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1166 api,
1167 dri_config,
1168 shared,
1169 num_attribs / 2,
1170 ctx_attribs,
1171 & error,
1172 dri2_ctx);
1173 dri2_create_context_attribs_error(error);
1174 } else {
1175 dri2_ctx->dri_context =
1176 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1177 api,
1178 dri_config,
1179 shared,
1180 dri2_ctx);
1181 }
1182 } else {
1183 assert(dri2_dpy->swrast);
1184 if (dri2_dpy->swrast->base.version >= 3) {
1185 unsigned error;
1186 unsigned num_attribs = 8;
1187 uint32_t ctx_attribs[8];
1188
1189 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1190 &num_attribs))
1191 goto cleanup;
1192
1193 dri2_ctx->dri_context =
1194 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1195 api,
1196 dri_config,
1197 shared,
1198 num_attribs / 2,
1199 ctx_attribs,
1200 & error,
1201 dri2_ctx);
1202 dri2_create_context_attribs_error(error);
1203 } else {
1204 dri2_ctx->dri_context =
1205 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1206 api,
1207 dri_config,
1208 shared,
1209 dri2_ctx);
1210 }
1211 }
1212
1213 if (!dri2_ctx->dri_context)
1214 goto cleanup;
1215
1216 return &dri2_ctx->base;
1217
1218 cleanup:
1219 free(dri2_ctx);
1220 return NULL;
1221 }
1222
1223 /**
1224 * Called via eglDestroyContext(), drv->API.DestroyContext().
1225 */
1226 static EGLBoolean
1227 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1228 {
1229 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1230 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1231
1232 if (_eglPutContext(ctx)) {
1233 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1234 free(dri2_ctx);
1235 }
1236
1237 return EGL_TRUE;
1238 }
1239
1240 static EGLBoolean
1241 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1242 {
1243 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1244
1245 if (!_eglPutSurface(surf))
1246 return EGL_TRUE;
1247
1248 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1249 }
1250
1251 /**
1252 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1253 */
1254 static EGLBoolean
1255 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1256 _EGLSurface *rsurf, _EGLContext *ctx)
1257 {
1258 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1259 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1260 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1261 _EGLContext *old_ctx;
1262 _EGLSurface *old_dsurf, *old_rsurf;
1263 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1264 __DRIdrawable *ddraw, *rdraw;
1265 __DRIcontext *cctx;
1266 EGLBoolean unbind;
1267
1268 if (!dri2_dpy)
1269 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1270
1271 /* make new bindings */
1272 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1273 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1274 return EGL_FALSE;
1275 }
1276
1277 /* flush before context switch */
1278 if (old_ctx)
1279 dri2_drv->glFlush();
1280
1281 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1282 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1283 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1284
1285 if (old_ctx) {
1286 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1287 dri2_dpy->core->unbindContext(old_cctx);
1288 }
1289
1290 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1291
1292 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1293 dri2_destroy_surface(drv, disp, old_dsurf);
1294 dri2_destroy_surface(drv, disp, old_rsurf);
1295
1296 if (!unbind)
1297 dri2_dpy->ref_count++;
1298 if (old_ctx) {
1299 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1300 dri2_destroy_context(drv, disp, old_ctx);
1301 dri2_display_release(old_disp);
1302 }
1303
1304 return EGL_TRUE;
1305 } else {
1306 /* undo the previous _eglBindContext */
1307 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1308 assert(&dri2_ctx->base == ctx &&
1309 tmp_dsurf == dsurf &&
1310 tmp_rsurf == rsurf);
1311
1312 _eglPutSurface(dsurf);
1313 _eglPutSurface(rsurf);
1314 _eglPutContext(ctx);
1315
1316 _eglPutSurface(old_dsurf);
1317 _eglPutSurface(old_rsurf);
1318 _eglPutContext(old_ctx);
1319
1320 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1321 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1322 * as EGL_SUCCESS.
1323 */
1324 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1325 }
1326 }
1327
1328 __DRIdrawable *
1329 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1330 {
1331 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1332
1333 return dri2_surf->dri_drawable;
1334 }
1335
1336 /*
1337 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1338 */
1339 static _EGLProc
1340 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1341 {
1342 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1343
1344 return dri2_drv->get_proc_address(procname);
1345 }
1346
1347 static _EGLSurface*
1348 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1349 _EGLConfig *conf, void *native_window,
1350 const EGLint *attrib_list)
1351 {
1352 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1353 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1354 attrib_list);
1355 }
1356
1357 static _EGLSurface*
1358 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1359 _EGLConfig *conf, void *native_pixmap,
1360 const EGLint *attrib_list)
1361 {
1362 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1363 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1364 attrib_list);
1365 }
1366
1367 static _EGLSurface*
1368 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1369 _EGLConfig *conf, const EGLint *attrib_list)
1370 {
1371 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1372 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1373 }
1374
1375 static EGLBoolean
1376 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1377 EGLint interval)
1378 {
1379 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1380 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1381 }
1382
1383 /**
1384 * Asks the client API to flush any rendering to the drawable so that we can
1385 * do our swapbuffers.
1386 */
1387 void
1388 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1389 {
1390 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1391 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1392
1393 if (dri2_dpy->flush) {
1394 if (dri2_dpy->flush->base.version >= 4) {
1395 /* We know there's a current context because:
1396 *
1397 * "If surface is not bound to the calling thread’s current
1398 * context, an EGL_BAD_SURFACE error is generated."
1399 */
1400 _EGLContext *ctx = _eglGetCurrentContext();
1401 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1402
1403 /* From the EGL 1.4 spec (page 52):
1404 *
1405 * "The contents of ancillary buffers are always undefined
1406 * after calling eglSwapBuffers."
1407 */
1408 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1409 dri_drawable,
1410 __DRI2_FLUSH_DRAWABLE |
1411 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1412 __DRI2_THROTTLE_SWAPBUFFER);
1413 } else {
1414 dri2_dpy->flush->flush(dri_drawable);
1415 }
1416 }
1417 }
1418
1419 static EGLBoolean
1420 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1421 {
1422 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1423 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1424 }
1425
1426 static EGLBoolean
1427 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1428 _EGLSurface *surf,
1429 const EGLint *rects, EGLint n_rects)
1430 {
1431 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1432 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1433 rects, n_rects);
1434 }
1435
1436 static EGLBoolean
1437 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1438 EGLint numRects, const EGLint *rects)
1439 {
1440 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1441 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1442 }
1443
1444 static EGLBoolean
1445 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1446 EGLint x, EGLint y, EGLint width, EGLint height)
1447 {
1448 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1449 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1450 }
1451
1452 static EGLBoolean
1453 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1454 void *native_pixmap_target)
1455 {
1456 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1457 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1458 }
1459
1460 static EGLint
1461 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1462 {
1463 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1464 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1465 }
1466
1467 static EGLBoolean
1468 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1469 {
1470 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1471 _EGLSurface *surf = ctx->DrawSurface;
1472 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1473
1474 (void) drv;
1475
1476 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1477 * we need to copy fake to real here.*/
1478
1479 if (dri2_dpy->flush != NULL)
1480 dri2_dpy->flush->flush(dri_drawable);
1481
1482 return EGL_TRUE;
1483 }
1484
1485 static EGLBoolean
1486 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1487 {
1488 (void) drv;
1489 (void) disp;
1490
1491 if (engine != EGL_CORE_NATIVE_ENGINE)
1492 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1493 /* glXWaitX(); */
1494
1495 return EGL_TRUE;
1496 }
1497
1498 static EGLBoolean
1499 dri2_bind_tex_image(_EGLDriver *drv,
1500 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1501 {
1502 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1503 struct dri2_egl_context *dri2_ctx;
1504 _EGLContext *ctx;
1505 GLint format, target;
1506 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1507
1508 ctx = _eglGetCurrentContext();
1509 dri2_ctx = dri2_egl_context(ctx);
1510
1511 if (!_eglBindTexImage(drv, disp, surf, buffer))
1512 return EGL_FALSE;
1513
1514 switch (surf->TextureFormat) {
1515 case EGL_TEXTURE_RGB:
1516 format = __DRI_TEXTURE_FORMAT_RGB;
1517 break;
1518 case EGL_TEXTURE_RGBA:
1519 format = __DRI_TEXTURE_FORMAT_RGBA;
1520 break;
1521 default:
1522 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1523 format = __DRI_TEXTURE_FORMAT_RGBA;
1524 }
1525
1526 switch (surf->TextureTarget) {
1527 case EGL_TEXTURE_2D:
1528 target = GL_TEXTURE_2D;
1529 break;
1530 default:
1531 target = GL_TEXTURE_2D;
1532 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1533 }
1534
1535 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1536 target, format,
1537 dri_drawable);
1538
1539 return EGL_TRUE;
1540 }
1541
1542 static EGLBoolean
1543 dri2_release_tex_image(_EGLDriver *drv,
1544 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1545 {
1546 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1547 struct dri2_egl_context *dri2_ctx;
1548 _EGLContext *ctx;
1549 GLint target;
1550 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1551
1552 ctx = _eglGetCurrentContext();
1553 dri2_ctx = dri2_egl_context(ctx);
1554
1555 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1556 return EGL_FALSE;
1557
1558 switch (surf->TextureTarget) {
1559 case EGL_TEXTURE_2D:
1560 target = GL_TEXTURE_2D;
1561 break;
1562 default:
1563 assert(0);
1564 }
1565
1566 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1567 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1568 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1569 target,
1570 dri_drawable);
1571 }
1572
1573 return EGL_TRUE;
1574 }
1575
1576 static _EGLImage*
1577 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1578 EGLenum target, EGLClientBuffer buffer,
1579 const EGLint *attr_list)
1580 {
1581 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1582 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1583 attr_list);
1584 }
1585
1586 static _EGLImage *
1587 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1588 {
1589 struct dri2_egl_image *dri2_img;
1590
1591 if (dri_image == NULL) {
1592 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1593 return NULL;
1594 }
1595
1596 dri2_img = malloc(sizeof *dri2_img);
1597 if (!dri2_img) {
1598 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1599 return NULL;
1600 }
1601
1602 if (!_eglInitImage(&dri2_img->base, disp)) {
1603 free(dri2_img);
1604 return NULL;
1605 }
1606
1607 dri2_img->dri_image = dri_image;
1608
1609 return &dri2_img->base;
1610 }
1611
1612 static _EGLImage *
1613 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1614 EGLClientBuffer buffer,
1615 const EGLint *attr_list)
1616 {
1617 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1618 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1619 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1620 __DRIimage *dri_image;
1621
1622 if (renderbuffer == 0) {
1623 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1624 return EGL_NO_IMAGE_KHR;
1625 }
1626
1627 dri_image =
1628 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1629 renderbuffer, NULL);
1630
1631 return dri2_create_image_from_dri(disp, dri_image);
1632 }
1633
1634 #ifdef HAVE_WAYLAND_PLATFORM
1635
1636 /* This structure describes how a wl_buffer maps to one or more
1637 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1638 * offsets and strides of the planes in the buffer. This table maps a
1639 * wl_drm format code to a description of the planes in the buffer
1640 * that lets us create a __DRIimage for each of the planes. */
1641
1642 static const struct wl_drm_components_descriptor {
1643 uint32_t dri_components;
1644 EGLint components;
1645 int nplanes;
1646 } wl_drm_components[] = {
1647 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1648 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1649 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1650 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1651 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1652 };
1653
1654 static _EGLImage *
1655 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1656 EGLClientBuffer _buffer,
1657 const EGLint *attr_list)
1658 {
1659 struct wl_drm_buffer *buffer;
1660 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1661 const struct wl_drm_components_descriptor *f;
1662 __DRIimage *dri_image;
1663 _EGLImageAttribs attrs;
1664 EGLint err;
1665 int32_t plane;
1666
1667 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1668 (struct wl_resource *) _buffer);
1669 if (!buffer)
1670 return NULL;
1671
1672 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1673 plane = attrs.PlaneWL;
1674 if (err != EGL_SUCCESS) {
1675 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1676 return NULL;
1677 }
1678
1679 f = buffer->driver_format;
1680 if (plane < 0 || plane >= f->nplanes) {
1681 _eglError(EGL_BAD_PARAMETER,
1682 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1683 return NULL;
1684 }
1685
1686 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1687
1688 if (dri_image == NULL) {
1689 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1690 return NULL;
1691 }
1692
1693 return dri2_create_image_from_dri(disp, dri_image);
1694 }
1695 #endif
1696
1697 static EGLBoolean
1698 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1699 EGLuint64KHR *ust, EGLuint64KHR *msc,
1700 EGLuint64KHR *sbc)
1701 {
1702 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1703 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1704 }
1705
1706 /**
1707 * Set the error code after a call to
1708 * dri2_egl_image::dri_image::createImageFromTexture.
1709 */
1710 static void
1711 dri2_create_image_khr_texture_error(int dri_error)
1712 {
1713 EGLint egl_error;
1714
1715 switch (dri_error) {
1716 case __DRI_IMAGE_ERROR_SUCCESS:
1717 return;
1718
1719 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1720 egl_error = EGL_BAD_ALLOC;
1721 break;
1722
1723 case __DRI_IMAGE_ERROR_BAD_MATCH:
1724 egl_error = EGL_BAD_MATCH;
1725 break;
1726
1727 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1728 egl_error = EGL_BAD_PARAMETER;
1729 break;
1730
1731 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1732 egl_error = EGL_BAD_ACCESS;
1733 break;
1734
1735 default:
1736 assert(0);
1737 egl_error = EGL_BAD_MATCH;
1738 break;
1739 }
1740
1741 _eglError(egl_error, "dri2_create_image_khr_texture");
1742 }
1743
1744 static _EGLImage *
1745 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1746 EGLenum target,
1747 EGLClientBuffer buffer,
1748 const EGLint *attr_list)
1749 {
1750 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1751 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1752 struct dri2_egl_image *dri2_img;
1753 GLuint texture = (GLuint) (uintptr_t) buffer;
1754 _EGLImageAttribs attrs;
1755 GLuint depth;
1756 GLenum gl_target;
1757 unsigned error;
1758
1759 if (texture == 0) {
1760 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1761 return EGL_NO_IMAGE_KHR;
1762 }
1763
1764 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1765 return EGL_NO_IMAGE_KHR;
1766
1767 switch (target) {
1768 case EGL_GL_TEXTURE_2D_KHR:
1769 depth = 0;
1770 gl_target = GL_TEXTURE_2D;
1771 break;
1772 case EGL_GL_TEXTURE_3D_KHR:
1773 if (disp->Extensions.KHR_gl_texture_3D_image) {
1774 depth = attrs.GLTextureZOffset;
1775 gl_target = GL_TEXTURE_3D;
1776 break;
1777 }
1778 else {
1779 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1780 return EGL_NO_IMAGE_KHR;
1781 }
1782 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1783 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1784 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1785 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1786 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1787 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1788 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1789 gl_target = GL_TEXTURE_CUBE_MAP;
1790 break;
1791 default:
1792 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1793 return EGL_NO_IMAGE_KHR;
1794 }
1795
1796 dri2_img = malloc(sizeof *dri2_img);
1797 if (!dri2_img) {
1798 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1799 return EGL_NO_IMAGE_KHR;
1800 }
1801
1802 if (!_eglInitImage(&dri2_img->base, disp)) {
1803 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1804 free(dri2_img);
1805 return EGL_NO_IMAGE_KHR;
1806 }
1807
1808 dri2_img->dri_image =
1809 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1810 gl_target,
1811 texture,
1812 depth,
1813 attrs.GLTextureLevel,
1814 &error,
1815 dri2_img);
1816 dri2_create_image_khr_texture_error(error);
1817
1818 if (!dri2_img->dri_image) {
1819 free(dri2_img);
1820 return EGL_NO_IMAGE_KHR;
1821 }
1822 return &dri2_img->base;
1823 }
1824
1825 static EGLBoolean
1826 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1827 EGLint attribute, EGLint *value)
1828 {
1829 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1830 if (!dri2_dpy->vtbl->query_surface)
1831 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1832 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1833 }
1834
1835 static struct wl_buffer*
1836 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1837 _EGLImage *img)
1838 {
1839 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1840 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1841 }
1842
1843 #ifdef HAVE_LIBDRM
1844 static _EGLImage *
1845 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1846 EGLClientBuffer buffer, const EGLint *attr_list)
1847 {
1848 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1849 EGLint format, name, pitch, err;
1850 _EGLImageAttribs attrs;
1851 __DRIimage *dri_image;
1852
1853 name = (EGLint) (uintptr_t) buffer;
1854
1855 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1856 if (err != EGL_SUCCESS)
1857 return NULL;
1858
1859 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1860 attrs.DRMBufferStrideMESA <= 0) {
1861 _eglError(EGL_BAD_PARAMETER,
1862 "bad width, height or stride");
1863 return NULL;
1864 }
1865
1866 switch (attrs.DRMBufferFormatMESA) {
1867 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1868 format = __DRI_IMAGE_FORMAT_ARGB8888;
1869 pitch = attrs.DRMBufferStrideMESA;
1870 break;
1871 default:
1872 _eglError(EGL_BAD_PARAMETER,
1873 "dri2_create_image_khr: unsupported pixmap depth");
1874 return NULL;
1875 }
1876
1877 dri_image =
1878 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1879 attrs.Width,
1880 attrs.Height,
1881 format,
1882 name,
1883 pitch,
1884 NULL);
1885
1886 return dri2_create_image_from_dri(disp, dri_image);
1887 }
1888
1889 static EGLBoolean
1890 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1891 {
1892 unsigned i;
1893
1894 /**
1895 * The spec says:
1896 *
1897 * "Required attributes and their values are as follows:
1898 *
1899 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1900 *
1901 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1902 * by drm_fourcc.h and used as the pixel_format parameter of the
1903 * drm_mode_fb_cmd2 ioctl."
1904 *
1905 * and
1906 *
1907 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1908 * incomplete, EGL_BAD_PARAMETER is generated."
1909 */
1910 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1911 !attrs->DMABufFourCC.IsPresent) {
1912 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1913 return EGL_FALSE;
1914 }
1915
1916 /**
1917 * Also:
1918 *
1919 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1920 * specified for a plane's pitch or offset isn't supported by EGL,
1921 * EGL_BAD_ACCESS is generated."
1922 */
1923 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1924 if (attrs->DMABufPlanePitches[i].IsPresent &&
1925 attrs->DMABufPlanePitches[i].Value <= 0) {
1926 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1927 return EGL_FALSE;
1928 }
1929 }
1930
1931 return EGL_TRUE;
1932 }
1933
1934 /* Returns the total number of file descriptors. Zero indicates an error. */
1935 static unsigned
1936 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1937 {
1938 unsigned i, plane_n;
1939
1940 switch (attrs->DMABufFourCC.Value) {
1941 case DRM_FORMAT_R8:
1942 case DRM_FORMAT_RG88:
1943 case DRM_FORMAT_GR88:
1944 case DRM_FORMAT_RGB332:
1945 case DRM_FORMAT_BGR233:
1946 case DRM_FORMAT_XRGB4444:
1947 case DRM_FORMAT_XBGR4444:
1948 case DRM_FORMAT_RGBX4444:
1949 case DRM_FORMAT_BGRX4444:
1950 case DRM_FORMAT_ARGB4444:
1951 case DRM_FORMAT_ABGR4444:
1952 case DRM_FORMAT_RGBA4444:
1953 case DRM_FORMAT_BGRA4444:
1954 case DRM_FORMAT_XRGB1555:
1955 case DRM_FORMAT_XBGR1555:
1956 case DRM_FORMAT_RGBX5551:
1957 case DRM_FORMAT_BGRX5551:
1958 case DRM_FORMAT_ARGB1555:
1959 case DRM_FORMAT_ABGR1555:
1960 case DRM_FORMAT_RGBA5551:
1961 case DRM_FORMAT_BGRA5551:
1962 case DRM_FORMAT_RGB565:
1963 case DRM_FORMAT_BGR565:
1964 case DRM_FORMAT_RGB888:
1965 case DRM_FORMAT_BGR888:
1966 case DRM_FORMAT_XRGB8888:
1967 case DRM_FORMAT_XBGR8888:
1968 case DRM_FORMAT_RGBX8888:
1969 case DRM_FORMAT_BGRX8888:
1970 case DRM_FORMAT_ARGB8888:
1971 case DRM_FORMAT_ABGR8888:
1972 case DRM_FORMAT_RGBA8888:
1973 case DRM_FORMAT_BGRA8888:
1974 case DRM_FORMAT_XRGB2101010:
1975 case DRM_FORMAT_XBGR2101010:
1976 case DRM_FORMAT_RGBX1010102:
1977 case DRM_FORMAT_BGRX1010102:
1978 case DRM_FORMAT_ARGB2101010:
1979 case DRM_FORMAT_ABGR2101010:
1980 case DRM_FORMAT_RGBA1010102:
1981 case DRM_FORMAT_BGRA1010102:
1982 case DRM_FORMAT_YUYV:
1983 case DRM_FORMAT_YVYU:
1984 case DRM_FORMAT_UYVY:
1985 case DRM_FORMAT_VYUY:
1986 plane_n = 1;
1987 break;
1988 case DRM_FORMAT_NV12:
1989 case DRM_FORMAT_NV21:
1990 case DRM_FORMAT_NV16:
1991 case DRM_FORMAT_NV61:
1992 plane_n = 2;
1993 break;
1994 case DRM_FORMAT_YUV410:
1995 case DRM_FORMAT_YVU410:
1996 case DRM_FORMAT_YUV411:
1997 case DRM_FORMAT_YVU411:
1998 case DRM_FORMAT_YUV420:
1999 case DRM_FORMAT_YVU420:
2000 case DRM_FORMAT_YUV422:
2001 case DRM_FORMAT_YVU422:
2002 case DRM_FORMAT_YUV444:
2003 case DRM_FORMAT_YVU444:
2004 plane_n = 3;
2005 break;
2006 default:
2007 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2008 return 0;
2009 }
2010
2011 /**
2012 * The spec says:
2013 *
2014 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2015 * incomplete, EGL_BAD_PARAMETER is generated."
2016 */
2017 for (i = 0; i < plane_n; ++i) {
2018 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2019 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2020 !attrs->DMABufPlanePitches[i].IsPresent) {
2021 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2022 return 0;
2023 }
2024 }
2025
2026 /**
2027 * The spec also says:
2028 *
2029 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2030 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2031 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2032 * attributes are specified."
2033 */
2034 for (i = plane_n; i < 3; ++i) {
2035 if (attrs->DMABufPlaneFds[i].IsPresent ||
2036 attrs->DMABufPlaneOffsets[i].IsPresent ||
2037 attrs->DMABufPlanePitches[i].IsPresent) {
2038 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2039 return 0;
2040 }
2041 }
2042
2043 return plane_n;
2044 }
2045
2046 /**
2047 * The spec says:
2048 *
2049 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2050 * EGL will take a reference to the dma_buf(s) which it will release at any
2051 * time while the EGLDisplay is initialized. It is the responsibility of the
2052 * application to close the dma_buf file descriptors."
2053 *
2054 * Therefore we must never close or otherwise modify the file descriptors.
2055 */
2056 _EGLImage *
2057 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2058 EGLClientBuffer buffer, const EGLint *attr_list)
2059 {
2060 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2061 _EGLImage *res;
2062 EGLint err;
2063 _EGLImageAttribs attrs;
2064 __DRIimage *dri_image;
2065 unsigned num_fds;
2066 unsigned i;
2067 int fds[3];
2068 int pitches[3];
2069 int offsets[3];
2070 unsigned error;
2071
2072 /**
2073 * The spec says:
2074 *
2075 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2076 * error EGL_BAD_PARAMETER is generated."
2077 */
2078 if (buffer != NULL) {
2079 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2080 return NULL;
2081 }
2082
2083 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2084 if (err != EGL_SUCCESS) {
2085 _eglError(err, "bad attribute");
2086 return NULL;
2087 }
2088
2089 if (!dri2_check_dma_buf_attribs(&attrs))
2090 return NULL;
2091
2092 num_fds = dri2_check_dma_buf_format(&attrs);
2093 if (!num_fds)
2094 return NULL;
2095
2096 for (i = 0; i < num_fds; ++i) {
2097 fds[i] = attrs.DMABufPlaneFds[i].Value;
2098 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2099 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2100 }
2101
2102 dri_image =
2103 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2104 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2105 fds, num_fds, pitches, offsets,
2106 attrs.DMABufYuvColorSpaceHint.Value,
2107 attrs.DMABufSampleRangeHint.Value,
2108 attrs.DMABufChromaHorizontalSiting.Value,
2109 attrs.DMABufChromaVerticalSiting.Value,
2110 &error,
2111 NULL);
2112 dri2_create_image_khr_texture_error(error);
2113
2114 if (!dri_image)
2115 return EGL_NO_IMAGE_KHR;
2116
2117 res = dri2_create_image_from_dri(disp, dri_image);
2118
2119 return res;
2120 }
2121 static _EGLImage *
2122 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2123 const EGLint *attr_list)
2124 {
2125 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2126 struct dri2_egl_image *dri2_img;
2127 _EGLImageAttribs attrs;
2128 unsigned int dri_use, valid_mask;
2129 int format;
2130 EGLint err = EGL_SUCCESS;
2131
2132 (void) drv;
2133
2134 dri2_img = malloc(sizeof *dri2_img);
2135 if (!dri2_img) {
2136 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2137 return EGL_NO_IMAGE_KHR;
2138 }
2139
2140 if (!attr_list) {
2141 err = EGL_BAD_PARAMETER;
2142 goto cleanup_img;
2143 }
2144
2145 if (!_eglInitImage(&dri2_img->base, disp)) {
2146 err = EGL_BAD_PARAMETER;
2147 goto cleanup_img;
2148 }
2149
2150 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2151 if (err != EGL_SUCCESS)
2152 goto cleanup_img;
2153
2154 if (attrs.Width <= 0 || attrs.Height <= 0) {
2155 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2156 attrs.Width, attrs.Height);
2157 goto cleanup_img;
2158 }
2159
2160 switch (attrs.DRMBufferFormatMESA) {
2161 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2162 format = __DRI_IMAGE_FORMAT_ARGB8888;
2163 break;
2164 default:
2165 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2166 attrs.DRMBufferFormatMESA);
2167 goto cleanup_img;
2168 }
2169
2170 valid_mask =
2171 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2172 EGL_DRM_BUFFER_USE_SHARE_MESA |
2173 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2174 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2175 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2176 attrs.DRMBufferUseMESA & ~valid_mask);
2177 goto cleanup_img;
2178 }
2179
2180 dri_use = 0;
2181 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2182 dri_use |= __DRI_IMAGE_USE_SHARE;
2183 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2184 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2185 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2186 dri_use |= __DRI_IMAGE_USE_CURSOR;
2187
2188 dri2_img->dri_image =
2189 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2190 attrs.Width, attrs.Height,
2191 format, dri_use, dri2_img);
2192 if (dri2_img->dri_image == NULL) {
2193 err = EGL_BAD_ALLOC;
2194 goto cleanup_img;
2195 }
2196
2197 return &dri2_img->base;
2198
2199 cleanup_img:
2200 free(dri2_img);
2201 _eglError(err, "dri2_create_drm_image_mesa");
2202
2203 return EGL_NO_IMAGE_KHR;
2204 }
2205
2206 static EGLBoolean
2207 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2208 EGLint *name, EGLint *handle, EGLint *stride)
2209 {
2210 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2211 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2212
2213 (void) drv;
2214
2215 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2216 __DRI_IMAGE_ATTRIB_NAME, name)) {
2217 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2218 return EGL_FALSE;
2219 }
2220
2221 if (handle)
2222 dri2_dpy->image->queryImage(dri2_img->dri_image,
2223 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2224
2225 if (stride)
2226 dri2_dpy->image->queryImage(dri2_img->dri_image,
2227 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2228
2229 return EGL_TRUE;
2230 }
2231
2232 static EGLBoolean
2233 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2234 _EGLImage *img,
2235 EGLint *fourcc, EGLint *nplanes,
2236 EGLuint64KHR *modifiers)
2237 {
2238 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2239 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2240
2241 (void) drv;
2242
2243
2244 if (nplanes)
2245 dri2_dpy->image->queryImage(dri2_img->dri_image,
2246 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2247 if (fourcc)
2248 dri2_dpy->image->queryImage(dri2_img->dri_image,
2249 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2250
2251 if (modifiers)
2252 *modifiers = 0;
2253
2254 return EGL_TRUE;
2255 }
2256
2257 static EGLBoolean
2258 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2259 int *fds, EGLint *strides, EGLint *offsets)
2260 {
2261 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2262 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2263
2264 (void) drv;
2265
2266 /* rework later to provide multiple fds/strides/offsets */
2267 if (fds)
2268 dri2_dpy->image->queryImage(dri2_img->dri_image,
2269 __DRI_IMAGE_ATTRIB_FD, fds);
2270
2271 if (strides)
2272 dri2_dpy->image->queryImage(dri2_img->dri_image,
2273 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2274
2275 if (offsets) {
2276 int img_offset;
2277 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2278 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2279 if (ret)
2280 offsets[0] = img_offset;
2281 else
2282 offsets[0] = 0;
2283 }
2284
2285 return EGL_TRUE;
2286 }
2287
2288 #endif
2289
2290 _EGLImage *
2291 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2292 _EGLContext *ctx, EGLenum target,
2293 EGLClientBuffer buffer, const EGLint *attr_list)
2294 {
2295 (void) drv;
2296
2297 switch (target) {
2298 case EGL_GL_TEXTURE_2D_KHR:
2299 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2300 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2301 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2302 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2303 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2304 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2305 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2306 case EGL_GL_TEXTURE_3D_KHR:
2307 if (disp->Extensions.KHR_gl_texture_3D_image) {
2308 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2309 }
2310 else {
2311 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2312 return EGL_NO_IMAGE_KHR;
2313 }
2314 case EGL_GL_RENDERBUFFER_KHR:
2315 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2316 #ifdef HAVE_LIBDRM
2317 case EGL_DRM_BUFFER_MESA:
2318 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2319 case EGL_LINUX_DMA_BUF_EXT:
2320 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2321 #endif
2322 #ifdef HAVE_WAYLAND_PLATFORM
2323 case EGL_WAYLAND_BUFFER_WL:
2324 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2325 #endif
2326 default:
2327 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2328 return EGL_NO_IMAGE_KHR;
2329 }
2330 }
2331
2332 static EGLBoolean
2333 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2334 {
2335 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2336 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2337
2338 (void) drv;
2339
2340 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2341 free(dri2_img);
2342
2343 return EGL_TRUE;
2344 }
2345
2346 #ifdef HAVE_WAYLAND_PLATFORM
2347
2348 static void
2349 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2350 struct wl_drm_buffer *buffer)
2351 {
2352 _EGLDisplay *disp = user_data;
2353 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2354 __DRIimage *img;
2355 int i, dri_components = 0;
2356
2357 if (fd == -1)
2358 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2359 buffer->width,
2360 buffer->height,
2361 buffer->format,
2362 (int*)&name, 1,
2363 buffer->stride,
2364 buffer->offset,
2365 NULL);
2366 else
2367 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2368 buffer->width,
2369 buffer->height,
2370 buffer->format,
2371 &fd, 1,
2372 buffer->stride,
2373 buffer->offset,
2374 NULL);
2375
2376 if (img == NULL)
2377 return;
2378
2379 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2380
2381 buffer->driver_format = NULL;
2382 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2383 if (wl_drm_components[i].dri_components == dri_components)
2384 buffer->driver_format = &wl_drm_components[i];
2385
2386 if (buffer->driver_format == NULL)
2387 dri2_dpy->image->destroyImage(img);
2388 else
2389 buffer->driver_buffer = img;
2390 }
2391
2392 static void
2393 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2394 {
2395 _EGLDisplay *disp = user_data;
2396 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2397
2398 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2399 }
2400
2401 static struct wayland_drm_callbacks wl_drm_callbacks = {
2402 .authenticate = NULL,
2403 .reference_buffer = dri2_wl_reference_buffer,
2404 .release_buffer = dri2_wl_release_buffer
2405 };
2406
2407 static EGLBoolean
2408 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2409 struct wl_display *wl_dpy)
2410 {
2411 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2412 int flags = 0;
2413 uint64_t cap;
2414
2415 (void) drv;
2416
2417 if (dri2_dpy->wl_server_drm)
2418 return EGL_FALSE;
2419
2420 wl_drm_callbacks.authenticate =
2421 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2422
2423 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2424 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2425 dri2_dpy->image->base.version >= 7 &&
2426 dri2_dpy->image->createImageFromFds != NULL)
2427 flags |= WAYLAND_DRM_PRIME;
2428
2429 dri2_dpy->wl_server_drm =
2430 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2431 &wl_drm_callbacks, disp, flags);
2432
2433 if (!dri2_dpy->wl_server_drm)
2434 return EGL_FALSE;
2435
2436 #ifdef HAVE_DRM_PLATFORM
2437 /* We have to share the wl_drm instance with gbm, so gbm can convert
2438 * wl_buffers to gbm bos. */
2439 if (dri2_dpy->gbm_dri)
2440 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2441 #endif
2442
2443 return EGL_TRUE;
2444 }
2445
2446 static EGLBoolean
2447 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2448 struct wl_display *wl_dpy)
2449 {
2450 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2451
2452 (void) drv;
2453
2454 if (!dri2_dpy->wl_server_drm)
2455 return EGL_FALSE;
2456
2457 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2458 dri2_dpy->wl_server_drm = NULL;
2459
2460 return EGL_TRUE;
2461 }
2462
2463 static EGLBoolean
2464 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2465 struct wl_resource *buffer_resource,
2466 EGLint attribute, EGLint *value)
2467 {
2468 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2469 struct wl_drm_buffer *buffer;
2470 const struct wl_drm_components_descriptor *format;
2471
2472 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2473 if (!buffer)
2474 return EGL_FALSE;
2475
2476 format = buffer->driver_format;
2477 switch (attribute) {
2478 case EGL_TEXTURE_FORMAT:
2479 *value = format->components;
2480 return EGL_TRUE;
2481 case EGL_WIDTH:
2482 *value = buffer->width;
2483 return EGL_TRUE;
2484 case EGL_HEIGHT:
2485 *value = buffer->height;
2486 return EGL_TRUE;
2487 }
2488
2489 return EGL_FALSE;
2490 }
2491 #endif
2492
2493 static void
2494 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2495 {
2496 p_atomic_inc(&sync->refcount);
2497 }
2498
2499 static void
2500 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2501 struct dri2_egl_sync *dri2_sync)
2502 {
2503 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2504 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2505 cnd_destroy(&dri2_sync->cond);
2506
2507 if (dri2_sync->fence)
2508 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2509
2510 free(dri2_sync);
2511 }
2512 }
2513
2514 static _EGLSync *
2515 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2516 EGLenum type, const EGLAttrib *attrib_list)
2517 {
2518 _EGLContext *ctx = _eglGetCurrentContext();
2519 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2520 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2521 struct dri2_egl_sync *dri2_sync;
2522 EGLint ret;
2523 pthread_condattr_t attr;
2524
2525 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2526 if (!dri2_sync) {
2527 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2528 return NULL;
2529 }
2530
2531 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2532 free(dri2_sync);
2533 return NULL;
2534 }
2535
2536 switch (type) {
2537 case EGL_SYNC_FENCE_KHR:
2538 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2539 if (!dri2_sync->fence) {
2540 /* Why did it fail? DRI doesn't return an error code, so we emit
2541 * a generic EGL error that doesn't communicate user error.
2542 */
2543 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2544 free(dri2_sync);
2545 return NULL;
2546 }
2547 break;
2548
2549 case EGL_SYNC_CL_EVENT_KHR:
2550 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2551 dri2_dpy->dri_screen,
2552 dri2_sync->base.CLEvent);
2553 /* this can only happen if the cl_event passed in is invalid. */
2554 if (!dri2_sync->fence) {
2555 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2556 free(dri2_sync);
2557 return NULL;
2558 }
2559
2560 /* the initial status must be "signaled" if the cl_event is signaled */
2561 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2562 dri2_sync->fence, 0, 0))
2563 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2564 break;
2565
2566 case EGL_SYNC_REUSABLE_KHR:
2567 /* intialize attr */
2568 ret = pthread_condattr_init(&attr);
2569
2570 if (ret) {
2571 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2572 free(dri2_sync);
2573 return NULL;
2574 }
2575
2576 /* change clock attribute to CLOCK_MONOTONIC */
2577 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2578
2579 if (ret) {
2580 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2581 free(dri2_sync);
2582 return NULL;
2583 }
2584
2585 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2586
2587 if (ret) {
2588 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2589 free(dri2_sync);
2590 return NULL;
2591 }
2592
2593 /* initial status of reusable sync must be "unsignaled" */
2594 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2595 break;
2596 }
2597
2598 p_atomic_set(&dri2_sync->refcount, 1);
2599 return &dri2_sync->base;
2600 }
2601
2602 static EGLBoolean
2603 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2604 {
2605 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2606 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2607 EGLint ret = EGL_TRUE;
2608 EGLint err;
2609
2610 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2611 * then unlock all threads possibly blocked by the reusable sync before
2612 * destroying it.
2613 */
2614 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2615 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2616 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2617 /* unblock all threads currently blocked by sync */
2618 err = cnd_broadcast(&dri2_sync->cond);
2619
2620 if (err) {
2621 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2622 ret = EGL_FALSE;
2623 }
2624 }
2625 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2626
2627 return ret;
2628 }
2629
2630 static EGLint
2631 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2632 EGLint flags, EGLTime timeout)
2633 {
2634 _EGLContext *ctx = _eglGetCurrentContext();
2635 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2636 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2637 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2638 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2639 unsigned wait_flags = 0;
2640
2641 /* timespecs for cnd_timedwait */
2642 struct timespec current;
2643 xtime expire;
2644
2645 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2646
2647 /* The EGL_KHR_fence_sync spec states:
2648 *
2649 * "If no context is current for the bound API,
2650 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2651 */
2652 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2653 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2654
2655 /* the sync object should take a reference while waiting */
2656 dri2_egl_ref_sync(dri2_sync);
2657
2658 switch (sync->Type) {
2659 case EGL_SYNC_FENCE_KHR:
2660 case EGL_SYNC_CL_EVENT_KHR:
2661 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2662 dri2_sync->fence, wait_flags,
2663 timeout))
2664 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2665 else
2666 ret = EGL_TIMEOUT_EXPIRED_KHR;
2667 break;
2668
2669 case EGL_SYNC_REUSABLE_KHR:
2670 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2671 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2672 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2673 dri2_drv->glFlush();
2674 }
2675
2676 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2677 if (timeout == EGL_FOREVER_KHR) {
2678 mtx_lock(&dri2_sync->mutex);
2679 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2680 mtx_unlock(&dri2_sync->mutex);
2681 } else {
2682 /* if reusable sync has not been yet signaled */
2683 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2684 clock_gettime(CLOCK_MONOTONIC, &current);
2685
2686 /* calculating when to expire */
2687 expire.nsec = timeout % 1000000000L;
2688 expire.sec = timeout / 1000000000L;
2689
2690 expire.nsec += current.tv_nsec;
2691 expire.sec += current.tv_sec;
2692
2693 /* expire.nsec now is a number between 0 and 1999999998 */
2694 if (expire.nsec > 999999999L) {
2695 expire.sec++;
2696 expire.nsec -= 1000000000L;
2697 }
2698
2699 mtx_lock(&dri2_sync->mutex);
2700 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2701 mtx_unlock(&dri2_sync->mutex);
2702
2703 if (ret == thrd_busy) {
2704 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2705 ret = EGL_TIMEOUT_EXPIRED_KHR;
2706 } else {
2707 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2708 ret = EGL_FALSE;
2709 }
2710 }
2711 }
2712 }
2713 break;
2714 }
2715 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2716
2717 return ret;
2718 }
2719
2720 static EGLBoolean
2721 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2722 EGLenum mode)
2723 {
2724 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2725 EGLint ret;
2726
2727 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2728 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2729 return EGL_FALSE;
2730 }
2731
2732 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2733 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2734 return EGL_FALSE;
2735 }
2736
2737 dri2_sync->base.SyncStatus = mode;
2738
2739 if (mode == EGL_SIGNALED_KHR) {
2740 ret = cnd_broadcast(&dri2_sync->cond);
2741
2742 /* fail to broadcast */
2743 if (ret) {
2744 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2745 return EGL_FALSE;
2746 }
2747 }
2748
2749 return EGL_TRUE;
2750 }
2751
2752 static EGLint
2753 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2754 {
2755 _EGLContext *ctx = _eglGetCurrentContext();
2756 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2757 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2758 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2759
2760 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2761 dri2_sync->fence, 0);
2762 return EGL_TRUE;
2763 }
2764
2765 static int
2766 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2767 struct mesa_glinterop_device_info *out)
2768 {
2769 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2770 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2771
2772 if (!dri2_dpy->interop)
2773 return MESA_GLINTEROP_UNSUPPORTED;
2774
2775 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2776 }
2777
2778 static int
2779 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2780 struct mesa_glinterop_export_in *in,
2781 struct mesa_glinterop_export_out *out)
2782 {
2783 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2784 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2785
2786 if (!dri2_dpy->interop)
2787 return MESA_GLINTEROP_UNSUPPORTED;
2788
2789 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2790 }
2791
2792 static void
2793 dri2_unload(_EGLDriver *drv)
2794 {
2795 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2796
2797 dlclose(dri2_drv->handle);
2798 free(dri2_drv);
2799 }
2800
2801 static EGLBoolean
2802 dri2_load(_EGLDriver *drv)
2803 {
2804 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2805 #ifdef HAVE_ANDROID_PLATFORM
2806 const char *libname = "libglapi.so";
2807 #elif defined(__APPLE__)
2808 const char *libname = "libglapi.0.dylib";
2809 #elif defined(__CYGWIN__)
2810 const char *libname = "cygglapi-0.dll";
2811 #else
2812 const char *libname = "libglapi.so.0";
2813 #endif
2814 void *handle;
2815
2816 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2817 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2818 if (!handle) {
2819 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
2820 goto no_handle;
2821 }
2822
2823 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2824 dlsym(handle, "_glapi_get_proc_address");
2825
2826 /* if glapi is not available, loading DRI drivers will fail */
2827 if (!dri2_drv->get_proc_address) {
2828 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2829 goto no_symbol;
2830 }
2831
2832 dri2_drv->glFlush = (void (*)(void))
2833 dri2_drv->get_proc_address("glFlush");
2834
2835 /* if glFlush is not available things are horribly broken */
2836 if (!dri2_drv->glFlush) {
2837 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
2838 goto no_symbol;
2839 }
2840
2841 dri2_drv->handle = handle;
2842 return EGL_TRUE;
2843
2844 no_symbol:
2845 dlclose(handle);
2846 no_handle:
2847 return EGL_FALSE;
2848 }
2849
2850 /**
2851 * This is the main entrypoint into the driver, called by libEGL.
2852 * Create a new _EGLDriver object and init its dispatch table.
2853 */
2854 _EGLDriver *
2855 _eglBuiltInDriverDRI2(const char *args)
2856 {
2857 struct dri2_egl_driver *dri2_drv;
2858
2859 (void) args;
2860
2861 dri2_drv = calloc(1, sizeof *dri2_drv);
2862 if (!dri2_drv)
2863 return NULL;
2864
2865 if (!dri2_load(&dri2_drv->base)) {
2866 free(dri2_drv);
2867 return NULL;
2868 }
2869
2870 _eglInitDriverFallbacks(&dri2_drv->base);
2871 dri2_drv->base.API.Initialize = dri2_initialize;
2872 dri2_drv->base.API.Terminate = dri2_terminate;
2873 dri2_drv->base.API.CreateContext = dri2_create_context;
2874 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2875 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2876 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2877 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2878 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2879 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2880 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2881 dri2_drv->base.API.WaitClient = dri2_wait_client;
2882 dri2_drv->base.API.WaitNative = dri2_wait_native;
2883 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2884 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2885 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2886 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2887 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2888 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2889 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2890 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2891 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2892 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2893 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2894 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2895 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2896 #ifdef HAVE_LIBDRM
2897 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2898 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2899 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2900 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2901 #endif
2902 #ifdef HAVE_WAYLAND_PLATFORM
2903 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2904 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2905 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2906 #endif
2907 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2908 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2909 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2910 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2911 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2912 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2913 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2914 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2915
2916 dri2_drv->base.Name = "DRI2";
2917 dri2_drv->base.Unload = dri2_unload;
2918
2919 return &dri2_drv->base;
2920 }