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egl/dri2: annotate dri2_extension_match instances as const data
[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 }
426 }
427 }
428
429 for (j = 0; matches[j].name; j++) {
430 field = ((char *) dri2_dpy + matches[j].offset);
431 if (*(const __DRIextension **) field == NULL) {
432 if (optional) {
433 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
434 matches[j].name, matches[j].version);
435 } else {
436 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
437 matches[j].name, matches[j].version);
438 ret = EGL_FALSE;
439 }
440 }
441 }
442
443 return ret;
444 }
445
446 static const __DRIextension **
447 dri2_open_driver(_EGLDisplay *disp)
448 {
449 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
450 const __DRIextension **extensions = NULL;
451 char path[PATH_MAX], *search_paths, *p, *next, *end;
452 char *get_extensions_name;
453 const __DRIextension **(*get_extensions)(void);
454
455 search_paths = NULL;
456 if (geteuid() == getuid()) {
457 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
458 search_paths = getenv("LIBGL_DRIVERS_PATH");
459 }
460 if (search_paths == NULL)
461 search_paths = DEFAULT_DRIVER_DIR;
462
463 dri2_dpy->driver = NULL;
464 end = search_paths + strlen(search_paths);
465 for (p = search_paths; p < end; p = next + 1) {
466 int len;
467 next = strchr(p, ':');
468 if (next == NULL)
469 next = end;
470
471 len = next - p;
472 #if GLX_USE_TLS
473 snprintf(path, sizeof path,
474 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
475 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
476 #endif
477 if (dri2_dpy->driver == NULL) {
478 snprintf(path, sizeof path,
479 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
480 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
481 if (dri2_dpy->driver == NULL)
482 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
483 }
484 /* not need continue to loop all paths once the driver is found */
485 if (dri2_dpy->driver != NULL)
486 break;
487
488 #ifdef ANDROID
489 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
490 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
491 if (dri2_dpy->driver == NULL)
492 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
493 else
494 break;
495 #endif
496 }
497
498 if (dri2_dpy->driver == NULL) {
499 _eglLog(_EGL_WARNING,
500 "DRI2: failed to open %s (search paths %s)",
501 dri2_dpy->driver_name, search_paths);
502 return NULL;
503 }
504
505 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
506
507 if (asprintf(&get_extensions_name, "%s_%s",
508 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
509 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
510 if (get_extensions) {
511 extensions = get_extensions();
512 } else {
513 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
514 get_extensions_name, dlerror());
515 }
516 free(get_extensions_name);
517 }
518
519 if (!extensions)
520 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
521 if (extensions == NULL) {
522 _eglLog(_EGL_WARNING,
523 "DRI2: driver exports no extensions (%s)", dlerror());
524 dlclose(dri2_dpy->driver);
525 }
526
527 return extensions;
528 }
529
530 EGLBoolean
531 dri2_load_driver_dri3(_EGLDisplay *disp)
532 {
533 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
534 const __DRIextension **extensions;
535
536 extensions = dri2_open_driver(disp);
537 if (!extensions)
538 return EGL_FALSE;
539
540 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
541 dlclose(dri2_dpy->driver);
542 return EGL_FALSE;
543 }
544 dri2_dpy->driver_extensions = extensions;
545
546 return EGL_TRUE;
547 }
548
549 EGLBoolean
550 dri2_load_driver(_EGLDisplay *disp)
551 {
552 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
553 const __DRIextension **extensions;
554
555 extensions = dri2_open_driver(disp);
556 if (!extensions)
557 return EGL_FALSE;
558
559 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
560 dlclose(dri2_dpy->driver);
561 return EGL_FALSE;
562 }
563 dri2_dpy->driver_extensions = extensions;
564
565 return EGL_TRUE;
566 }
567
568 EGLBoolean
569 dri2_load_driver_swrast(_EGLDisplay *disp)
570 {
571 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
572 const __DRIextension **extensions;
573
574 extensions = dri2_open_driver(disp);
575 if (!extensions)
576 return EGL_FALSE;
577
578 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
579 dlclose(dri2_dpy->driver);
580 return EGL_FALSE;
581 }
582 dri2_dpy->driver_extensions = extensions;
583
584 return EGL_TRUE;
585 }
586
587 static unsigned
588 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
589 {
590 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
591 unsigned int value = 0;
592
593 if (!rendererQuery ||
594 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
595 return 0;
596
597 return value;
598 }
599
600 void
601 dri2_setup_screen(_EGLDisplay *disp)
602 {
603 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
604 unsigned int api_mask;
605
606 if (dri2_dpy->image_driver) {
607 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
608 } else if (dri2_dpy->dri2) {
609 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
610 } else {
611 assert(dri2_dpy->swrast);
612 api_mask = 1 << __DRI_API_OPENGL |
613 1 << __DRI_API_GLES |
614 1 << __DRI_API_GLES2 |
615 1 << __DRI_API_GLES3;
616 }
617
618 disp->ClientAPIs = 0;
619 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
620 disp->ClientAPIs |= EGL_OPENGL_BIT;
621 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
622 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
623 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
624 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
625 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
626 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
627
628 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
629 disp->Extensions.KHR_no_config_context = EGL_TRUE;
630 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
631
632 if (dri2_renderer_query_integer(dri2_dpy,
633 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
634 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
635
636 if (dri2_dpy->image_driver ||
637 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
638 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
639 disp->Extensions.KHR_create_context = EGL_TRUE;
640
641 if (dri2_dpy->robustness)
642 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
643 }
644
645 if (dri2_dpy->fence) {
646 disp->Extensions.KHR_fence_sync = EGL_TRUE;
647 disp->Extensions.KHR_wait_sync = EGL_TRUE;
648 if (dri2_dpy->fence->get_fence_from_cl_event)
649 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
650 }
651
652 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
653
654 if (dri2_dpy->image) {
655 if (dri2_dpy->image->base.version >= 10 &&
656 dri2_dpy->image->getCapabilities != NULL) {
657 int capabilities;
658
659 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
660 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
661
662 if (dri2_dpy->image->base.version >= 11)
663 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
664 } else {
665 disp->Extensions.MESA_drm_image = EGL_TRUE;
666 if (dri2_dpy->image->base.version >= 11)
667 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
668 }
669
670 disp->Extensions.KHR_image_base = EGL_TRUE;
671 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
672 if (dri2_dpy->image->base.version >= 5 &&
673 dri2_dpy->image->createImageFromTexture) {
674 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
675 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
676 }
677 if (dri2_renderer_query_integer(dri2_dpy,
678 __DRI2_RENDERER_HAS_TEXTURE_3D))
679 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
680 #ifdef HAVE_LIBDRM
681 if (dri2_dpy->image->base.version >= 8 &&
682 dri2_dpy->image->createImageFromDmaBufs) {
683 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
684 }
685 #endif
686 }
687 }
688
689 /* All platforms but DRM call this function to create the screen, query the
690 * dri extensions, setup the vtables and populate the driver_configs.
691 * DRM inherits all that information from its display - GBM.
692 */
693 EGLBoolean
694 dri2_create_screen(_EGLDisplay *disp)
695 {
696 const __DRIextension **extensions;
697 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
698
699 if (dri2_dpy->image_driver) {
700 dri2_dpy->dri_screen =
701 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
702 dri2_dpy->loader_extensions,
703 dri2_dpy->driver_extensions,
704 &dri2_dpy->driver_configs,
705 disp);
706 } else if (dri2_dpy->dri2) {
707 if (dri2_dpy->dri2->base.version >= 4) {
708 dri2_dpy->dri_screen =
709 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
710 dri2_dpy->loader_extensions,
711 dri2_dpy->driver_extensions,
712 &dri2_dpy->driver_configs, disp);
713 } else {
714 dri2_dpy->dri_screen =
715 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
716 dri2_dpy->loader_extensions,
717 &dri2_dpy->driver_configs, disp);
718 }
719 } else {
720 assert(dri2_dpy->swrast);
721 if (dri2_dpy->swrast->base.version >= 4) {
722 dri2_dpy->dri_screen =
723 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
724 dri2_dpy->driver_extensions,
725 &dri2_dpy->driver_configs, disp);
726 } else {
727 dri2_dpy->dri_screen =
728 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
729 &dri2_dpy->driver_configs, disp);
730 }
731 }
732
733 if (dri2_dpy->dri_screen == NULL) {
734 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
735 return EGL_FALSE;
736 }
737
738 dri2_dpy->own_dri_screen = 1;
739
740 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
741
742 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
743 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions, false))
744 goto cleanup_dri_screen;
745 } else {
746 assert(dri2_dpy->swrast);
747 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions, false))
748 goto cleanup_dri_screen;
749 }
750
751 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
752 dri2_setup_screen(disp);
753
754 return EGL_TRUE;
755
756 cleanup_dri_screen:
757 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
758
759 return EGL_FALSE;
760 }
761
762 /**
763 * Called via eglInitialize(), GLX_drv->API.Initialize().
764 *
765 * This must be guaranteed to be called exactly once, even if eglInitialize is
766 * called many times (without a eglTerminate in between).
767 */
768 static EGLBoolean
769 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
770 {
771 EGLBoolean ret = EGL_FALSE;
772 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
773
774 /* In the case where the application calls eglMakeCurrent(context1),
775 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
776 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
777 * initialized, as we need it to be able to free context1 correctly.
778 *
779 * It would probably be safest to forcibly release the display with
780 * dri2_display_release, to make sure the display is reinitialized correctly.
781 * However, the EGL spec states that we need to keep a reference to the
782 * current context (so we cannot call dri2_make_current(NULL)), and therefore
783 * we would leak context1 as we would be missing the old display connection
784 * to free it up correctly.
785 */
786 if (dri2_dpy) {
787 dri2_dpy->ref_count++;
788 return EGL_TRUE;
789 }
790
791 /* not until swrast_dri is supported */
792 if (disp->Options.UseFallback)
793 return EGL_FALSE;
794
795 /* Nothing to initialize for a test only display */
796 if (disp->Options.TestOnly)
797 return EGL_TRUE;
798
799 switch (disp->Platform) {
800 #ifdef HAVE_SURFACELESS_PLATFORM
801 case _EGL_PLATFORM_SURFACELESS:
802 ret = dri2_initialize_surfaceless(drv, disp);
803 break;
804 #endif
805 #ifdef HAVE_X11_PLATFORM
806 case _EGL_PLATFORM_X11:
807 ret = dri2_initialize_x11(drv, disp);
808 break;
809 #endif
810 #ifdef HAVE_DRM_PLATFORM
811 case _EGL_PLATFORM_DRM:
812 ret = dri2_initialize_drm(drv, disp);
813 break;
814 #endif
815 #ifdef HAVE_WAYLAND_PLATFORM
816 case _EGL_PLATFORM_WAYLAND:
817 ret = dri2_initialize_wayland(drv, disp);
818 break;
819 #endif
820 #ifdef HAVE_ANDROID_PLATFORM
821 case _EGL_PLATFORM_ANDROID:
822 ret = dri2_initialize_android(drv, disp);
823 break;
824 #endif
825 default:
826 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
827 return EGL_FALSE;
828 }
829
830 if (ret) {
831 dri2_dpy = dri2_egl_display(disp);
832
833 if (!dri2_dpy) {
834 return EGL_FALSE;
835 }
836
837 dri2_dpy->ref_count++;
838 }
839
840 return ret;
841 }
842
843 /**
844 * Decrement display reference count, and free up display if necessary.
845 */
846 static void
847 dri2_display_release(_EGLDisplay *disp)
848 {
849 struct dri2_egl_display *dri2_dpy;
850 unsigned i;
851
852 if (!disp)
853 return;
854
855 dri2_dpy = dri2_egl_display(disp);
856
857 assert(dri2_dpy->ref_count > 0);
858 dri2_dpy->ref_count--;
859
860 if (dri2_dpy->ref_count > 0)
861 return;
862
863 _eglCleanupDisplay(disp);
864
865 if (dri2_dpy->own_dri_screen)
866 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
867 if (dri2_dpy->fd >= 0)
868 close(dri2_dpy->fd);
869 if (dri2_dpy->driver)
870 dlclose(dri2_dpy->driver);
871 free(dri2_dpy->driver_name);
872
873 #ifdef HAVE_WAYLAND_PLATFORM
874 free(dri2_dpy->device_name);
875 #endif
876
877 switch (disp->Platform) {
878 #ifdef HAVE_X11_PLATFORM
879 case _EGL_PLATFORM_X11:
880 if (dri2_dpy->own_device) {
881 xcb_disconnect(dri2_dpy->conn);
882 }
883 break;
884 #endif
885 #ifdef HAVE_DRM_PLATFORM
886 case _EGL_PLATFORM_DRM:
887 if (dri2_dpy->own_device) {
888 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
889 }
890 break;
891 #endif
892 #ifdef HAVE_WAYLAND_PLATFORM
893 case _EGL_PLATFORM_WAYLAND:
894 if (dri2_dpy->wl_drm)
895 wl_drm_destroy(dri2_dpy->wl_drm);
896 if (dri2_dpy->wl_shm)
897 wl_shm_destroy(dri2_dpy->wl_shm);
898 wl_registry_destroy(dri2_dpy->wl_registry);
899 wl_event_queue_destroy(dri2_dpy->wl_queue);
900 if (dri2_dpy->own_device) {
901 wl_display_disconnect(dri2_dpy->wl_dpy);
902 }
903 break;
904 #endif
905 default:
906 break;
907 }
908
909 /* The drm platform does not create the screen/driver_configs but reuses
910 * the ones from the gbm device. As such the gbm itself is responsible
911 * for the cleanup.
912 */
913 if (disp->Platform != _EGL_PLATFORM_DRM) {
914 for (i = 0; dri2_dpy->driver_configs[i]; i++)
915 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
916 free(dri2_dpy->driver_configs);
917 }
918 free(dri2_dpy);
919 disp->DriverData = NULL;
920 }
921
922 /**
923 * Called via eglTerminate(), drv->API.Terminate().
924 *
925 * This must be guaranteed to be called exactly once, even if eglTerminate is
926 * called many times (without a eglInitialize in between).
927 */
928 static EGLBoolean
929 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
930 {
931 /* Release all non-current Context/Surfaces. */
932 _eglReleaseDisplayResources(drv, disp);
933
934 dri2_display_release(disp);
935
936 return EGL_TRUE;
937 }
938
939 /**
940 * Set the error code after a call to
941 * dri2_egl_display::dri2::createContextAttribs.
942 */
943 static void
944 dri2_create_context_attribs_error(int dri_error)
945 {
946 EGLint egl_error;
947
948 switch (dri_error) {
949 case __DRI_CTX_ERROR_SUCCESS:
950 return;
951
952 case __DRI_CTX_ERROR_NO_MEMORY:
953 egl_error = EGL_BAD_ALLOC;
954 break;
955
956 /* From the EGL_KHR_create_context spec, section "Errors":
957 *
958 * * If <config> does not support a client API context compatible
959 * with the requested API major and minor version, [...] context flags,
960 * and context reset notification behavior (for client API types where
961 * these attributes are supported), then an EGL_BAD_MATCH error is
962 * generated.
963 *
964 * * If an OpenGL ES context is requested and the values for
965 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
966 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
967 * is not defined, than an EGL_BAD_MATCH error is generated.
968 *
969 * * If an OpenGL context is requested, the requested version is
970 * greater than 3.2, and the value for attribute
971 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
972 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
973 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
974 * one of these bits set; or if the implementation does not support
975 * the requested profile, then an EGL_BAD_MATCH error is generated.
976 */
977 case __DRI_CTX_ERROR_BAD_API:
978 case __DRI_CTX_ERROR_BAD_VERSION:
979 case __DRI_CTX_ERROR_BAD_FLAG:
980 egl_error = EGL_BAD_MATCH;
981 break;
982
983 /* From the EGL_KHR_create_context spec, section "Errors":
984 *
985 * * If an attribute name or attribute value in <attrib_list> is not
986 * recognized (including unrecognized bits in bitmask attributes),
987 * then an EGL_BAD_ATTRIBUTE error is generated."
988 */
989 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
990 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
991 egl_error = EGL_BAD_ATTRIBUTE;
992 break;
993
994 default:
995 assert(0);
996 egl_error = EGL_BAD_MATCH;
997 break;
998 }
999
1000 _eglError(egl_error, "dri2_create_context");
1001 }
1002
1003 static bool
1004 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1005 struct dri2_egl_display *dri2_dpy,
1006 uint32_t *ctx_attribs,
1007 unsigned *num_attribs)
1008 {
1009 int pos = 0;
1010
1011 assert(*num_attribs >= 8);
1012
1013 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1014 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1015 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1016 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1017
1018 if (dri2_ctx->base.Flags != 0) {
1019 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1020 * extension, don't even try to send it the robust-access flag.
1021 * It may explode. Instead, generate the required EGL error here.
1022 */
1023 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1024 && !dri2_dpy->robustness) {
1025 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1026 return false;
1027 }
1028
1029 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1030 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1031 }
1032
1033 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1034 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1035 * extension, don't even try to send it a reset strategy. It may
1036 * explode. Instead, generate the required EGL error here.
1037 */
1038 if (!dri2_dpy->robustness) {
1039 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1040 return false;
1041 }
1042
1043 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1044 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1045 }
1046
1047 *num_attribs = pos;
1048
1049 return true;
1050 }
1051
1052 /**
1053 * Called via eglCreateContext(), drv->API.CreateContext().
1054 */
1055 static _EGLContext *
1056 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1057 _EGLContext *share_list, const EGLint *attrib_list)
1058 {
1059 struct dri2_egl_context *dri2_ctx;
1060 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1061 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1062 __DRIcontext *shared =
1063 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1064 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1065 const __DRIconfig *dri_config;
1066 int api;
1067
1068 (void) drv;
1069
1070 dri2_ctx = malloc(sizeof *dri2_ctx);
1071 if (!dri2_ctx) {
1072 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1073 return NULL;
1074 }
1075
1076 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1077 goto cleanup;
1078
1079 switch (dri2_ctx->base.ClientAPI) {
1080 case EGL_OPENGL_ES_API:
1081 switch (dri2_ctx->base.ClientMajorVersion) {
1082 case 1:
1083 api = __DRI_API_GLES;
1084 break;
1085 case 2:
1086 api = __DRI_API_GLES2;
1087 break;
1088 case 3:
1089 api = __DRI_API_GLES3;
1090 break;
1091 default:
1092 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1093 free(dri2_ctx);
1094 return NULL;
1095 }
1096 break;
1097 case EGL_OPENGL_API:
1098 if ((dri2_ctx->base.ClientMajorVersion >= 4
1099 || (dri2_ctx->base.ClientMajorVersion == 3
1100 && dri2_ctx->base.ClientMinorVersion >= 2))
1101 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1102 api = __DRI_API_OPENGL_CORE;
1103 else
1104 api = __DRI_API_OPENGL;
1105 break;
1106 default:
1107 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1108 free(dri2_ctx);
1109 return NULL;
1110 }
1111
1112 if (conf != NULL) {
1113 /* The config chosen here isn't necessarily
1114 * used for surfaces later.
1115 * A pixmap surface will use the single config.
1116 * This opportunity depends on disabling the
1117 * doubleBufferMode check in
1118 * src/mesa/main/context.c:check_compatible()
1119 */
1120 if (dri2_config->dri_double_config[0])
1121 dri_config = dri2_config->dri_double_config[0];
1122 else
1123 dri_config = dri2_config->dri_single_config[0];
1124
1125 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1126 * makes sure the back buffer will always be used.
1127 */
1128 if (conf->SurfaceType & EGL_WINDOW_BIT)
1129 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1130 }
1131 else
1132 dri_config = NULL;
1133
1134 if (dri2_dpy->image_driver) {
1135 unsigned error;
1136 unsigned num_attribs = 8;
1137 uint32_t ctx_attribs[8];
1138
1139 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1140 &num_attribs))
1141 goto cleanup;
1142
1143 dri2_ctx->dri_context =
1144 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1145 api,
1146 dri_config,
1147 shared,
1148 num_attribs / 2,
1149 ctx_attribs,
1150 & error,
1151 dri2_ctx);
1152 dri2_create_context_attribs_error(error);
1153 } else if (dri2_dpy->dri2) {
1154 if (dri2_dpy->dri2->base.version >= 3) {
1155 unsigned error;
1156 unsigned num_attribs = 8;
1157 uint32_t ctx_attribs[8];
1158
1159 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1160 &num_attribs))
1161 goto cleanup;
1162
1163 dri2_ctx->dri_context =
1164 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1165 api,
1166 dri_config,
1167 shared,
1168 num_attribs / 2,
1169 ctx_attribs,
1170 & error,
1171 dri2_ctx);
1172 dri2_create_context_attribs_error(error);
1173 } else {
1174 dri2_ctx->dri_context =
1175 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1176 api,
1177 dri_config,
1178 shared,
1179 dri2_ctx);
1180 }
1181 } else {
1182 assert(dri2_dpy->swrast);
1183 if (dri2_dpy->swrast->base.version >= 3) {
1184 unsigned error;
1185 unsigned num_attribs = 8;
1186 uint32_t ctx_attribs[8];
1187
1188 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1189 &num_attribs))
1190 goto cleanup;
1191
1192 dri2_ctx->dri_context =
1193 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1194 api,
1195 dri_config,
1196 shared,
1197 num_attribs / 2,
1198 ctx_attribs,
1199 & error,
1200 dri2_ctx);
1201 dri2_create_context_attribs_error(error);
1202 } else {
1203 dri2_ctx->dri_context =
1204 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1205 api,
1206 dri_config,
1207 shared,
1208 dri2_ctx);
1209 }
1210 }
1211
1212 if (!dri2_ctx->dri_context)
1213 goto cleanup;
1214
1215 return &dri2_ctx->base;
1216
1217 cleanup:
1218 free(dri2_ctx);
1219 return NULL;
1220 }
1221
1222 /**
1223 * Called via eglDestroyContext(), drv->API.DestroyContext().
1224 */
1225 static EGLBoolean
1226 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1227 {
1228 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1229 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1230
1231 if (_eglPutContext(ctx)) {
1232 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1233 free(dri2_ctx);
1234 }
1235
1236 return EGL_TRUE;
1237 }
1238
1239 static EGLBoolean
1240 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1241 {
1242 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1243
1244 if (!_eglPutSurface(surf))
1245 return EGL_TRUE;
1246
1247 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1248 }
1249
1250 /**
1251 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1252 */
1253 static EGLBoolean
1254 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1255 _EGLSurface *rsurf, _EGLContext *ctx)
1256 {
1257 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1258 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1259 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1260 _EGLContext *old_ctx;
1261 _EGLDisplay *old_disp = NULL;
1262 _EGLSurface *old_dsurf, *old_rsurf;
1263 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1264 __DRIdrawable *ddraw, *rdraw;
1265 __DRIcontext *cctx;
1266
1267 if (!dri2_dpy)
1268 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1269
1270 /* make new bindings */
1271 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1272 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1273 return EGL_FALSE;
1274 }
1275
1276 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1277 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1278 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1279
1280 if (old_ctx) {
1281 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1282
1283 /* flush before context switch */
1284 dri2_drv->glFlush();
1285 dri2_dpy->core->unbindContext(old_cctx);
1286
1287 /* Keep track of the old dpy as we'll need it for resource cleanup */
1288 old_disp = old_ctx->Resource.Display;
1289 }
1290
1291 /* Bind if at least one of the primitives is valid ... */
1292 if (cctx || ddraw || rdraw) {
1293 if (dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1294 /* undo the previous _eglBindContext */
1295 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1296 assert(&dri2_ctx->base == ctx &&
1297 tmp_dsurf == dsurf &&
1298 tmp_rsurf == rsurf);
1299
1300 _eglPutSurface(dsurf);
1301 _eglPutSurface(rsurf);
1302 _eglPutContext(ctx);
1303
1304 _eglPutSurface(old_dsurf);
1305 _eglPutSurface(old_rsurf);
1306 _eglPutContext(old_ctx);
1307
1308 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1309 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1310 * as EGL_SUCCESS.
1311 */
1312 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1313 }
1314
1315 /* ... and refcount the dpy when successful. */
1316 dri2_dpy->ref_count++;
1317 }
1318
1319 dri2_destroy_surface(drv, disp, old_dsurf);
1320 dri2_destroy_surface(drv, disp, old_rsurf);
1321 dri2_destroy_context(drv, disp, old_ctx);
1322 dri2_display_release(old_disp);
1323
1324 return EGL_TRUE;
1325 }
1326
1327 __DRIdrawable *
1328 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1329 {
1330 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1331
1332 return dri2_surf->dri_drawable;
1333 }
1334
1335 /*
1336 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1337 */
1338 static _EGLProc
1339 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1340 {
1341 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1342
1343 return dri2_drv->get_proc_address(procname);
1344 }
1345
1346 static _EGLSurface*
1347 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1348 _EGLConfig *conf, void *native_window,
1349 const EGLint *attrib_list)
1350 {
1351 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1352 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1353 attrib_list);
1354 }
1355
1356 static _EGLSurface*
1357 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1358 _EGLConfig *conf, void *native_pixmap,
1359 const EGLint *attrib_list)
1360 {
1361 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1362 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1363 attrib_list);
1364 }
1365
1366 static _EGLSurface*
1367 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1368 _EGLConfig *conf, const EGLint *attrib_list)
1369 {
1370 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1371 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1372 }
1373
1374 static EGLBoolean
1375 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1376 EGLint interval)
1377 {
1378 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1379 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1380 }
1381
1382 /**
1383 * Asks the client API to flush any rendering to the drawable so that we can
1384 * do our swapbuffers.
1385 */
1386 void
1387 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1388 {
1389 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1390 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1391
1392 if (dri2_dpy->flush) {
1393 if (dri2_dpy->flush->base.version >= 4) {
1394 /* We know there's a current context because:
1395 *
1396 * "If surface is not bound to the calling thread’s current
1397 * context, an EGL_BAD_SURFACE error is generated."
1398 */
1399 _EGLContext *ctx = _eglGetCurrentContext();
1400 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1401
1402 /* From the EGL 1.4 spec (page 52):
1403 *
1404 * "The contents of ancillary buffers are always undefined
1405 * after calling eglSwapBuffers."
1406 */
1407 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1408 dri_drawable,
1409 __DRI2_FLUSH_DRAWABLE |
1410 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1411 __DRI2_THROTTLE_SWAPBUFFER);
1412 } else {
1413 dri2_dpy->flush->flush(dri_drawable);
1414 }
1415 }
1416 }
1417
1418 static EGLBoolean
1419 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1420 {
1421 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1422 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1423 }
1424
1425 static EGLBoolean
1426 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1427 _EGLSurface *surf,
1428 const EGLint *rects, EGLint n_rects)
1429 {
1430 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1431 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1432 rects, n_rects);
1433 }
1434
1435 static EGLBoolean
1436 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1437 EGLint numRects, const EGLint *rects)
1438 {
1439 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1440 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1441 }
1442
1443 static EGLBoolean
1444 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1445 EGLint x, EGLint y, EGLint width, EGLint height)
1446 {
1447 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1448 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1449 }
1450
1451 static EGLBoolean
1452 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1453 void *native_pixmap_target)
1454 {
1455 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1456 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1457 }
1458
1459 static EGLint
1460 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1461 {
1462 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1463 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1464 }
1465
1466 static EGLBoolean
1467 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1468 {
1469 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1470 _EGLSurface *surf = ctx->DrawSurface;
1471 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1472
1473 (void) drv;
1474
1475 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1476 * we need to copy fake to real here.*/
1477
1478 if (dri2_dpy->flush != NULL)
1479 dri2_dpy->flush->flush(dri_drawable);
1480
1481 return EGL_TRUE;
1482 }
1483
1484 static EGLBoolean
1485 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1486 {
1487 (void) drv;
1488 (void) disp;
1489
1490 if (engine != EGL_CORE_NATIVE_ENGINE)
1491 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1492 /* glXWaitX(); */
1493
1494 return EGL_TRUE;
1495 }
1496
1497 static EGLBoolean
1498 dri2_bind_tex_image(_EGLDriver *drv,
1499 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1500 {
1501 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1502 struct dri2_egl_context *dri2_ctx;
1503 _EGLContext *ctx;
1504 GLint format, target;
1505 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1506
1507 ctx = _eglGetCurrentContext();
1508 dri2_ctx = dri2_egl_context(ctx);
1509
1510 if (!_eglBindTexImage(drv, disp, surf, buffer))
1511 return EGL_FALSE;
1512
1513 switch (surf->TextureFormat) {
1514 case EGL_TEXTURE_RGB:
1515 format = __DRI_TEXTURE_FORMAT_RGB;
1516 break;
1517 case EGL_TEXTURE_RGBA:
1518 format = __DRI_TEXTURE_FORMAT_RGBA;
1519 break;
1520 default:
1521 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1522 format = __DRI_TEXTURE_FORMAT_RGBA;
1523 }
1524
1525 switch (surf->TextureTarget) {
1526 case EGL_TEXTURE_2D:
1527 target = GL_TEXTURE_2D;
1528 break;
1529 default:
1530 target = GL_TEXTURE_2D;
1531 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1532 }
1533
1534 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1535 target, format,
1536 dri_drawable);
1537
1538 return EGL_TRUE;
1539 }
1540
1541 static EGLBoolean
1542 dri2_release_tex_image(_EGLDriver *drv,
1543 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1544 {
1545 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1546 struct dri2_egl_context *dri2_ctx;
1547 _EGLContext *ctx;
1548 GLint target;
1549 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1550
1551 ctx = _eglGetCurrentContext();
1552 dri2_ctx = dri2_egl_context(ctx);
1553
1554 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1555 return EGL_FALSE;
1556
1557 switch (surf->TextureTarget) {
1558 case EGL_TEXTURE_2D:
1559 target = GL_TEXTURE_2D;
1560 break;
1561 default:
1562 assert(0);
1563 }
1564
1565 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1566 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1567 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1568 target,
1569 dri_drawable);
1570 }
1571
1572 return EGL_TRUE;
1573 }
1574
1575 static _EGLImage*
1576 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1577 EGLenum target, EGLClientBuffer buffer,
1578 const EGLint *attr_list)
1579 {
1580 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1581 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1582 attr_list);
1583 }
1584
1585 static _EGLImage *
1586 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1587 {
1588 struct dri2_egl_image *dri2_img;
1589
1590 if (dri_image == NULL) {
1591 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1592 return NULL;
1593 }
1594
1595 dri2_img = malloc(sizeof *dri2_img);
1596 if (!dri2_img) {
1597 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1598 return NULL;
1599 }
1600
1601 if (!_eglInitImage(&dri2_img->base, disp)) {
1602 free(dri2_img);
1603 return NULL;
1604 }
1605
1606 dri2_img->dri_image = dri_image;
1607
1608 return &dri2_img->base;
1609 }
1610
1611 static _EGLImage *
1612 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1613 EGLClientBuffer buffer,
1614 const EGLint *attr_list)
1615 {
1616 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1617 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1618 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1619 __DRIimage *dri_image;
1620
1621 if (renderbuffer == 0) {
1622 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1623 return EGL_NO_IMAGE_KHR;
1624 }
1625
1626 dri_image =
1627 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1628 renderbuffer, NULL);
1629
1630 return dri2_create_image_from_dri(disp, dri_image);
1631 }
1632
1633 #ifdef HAVE_WAYLAND_PLATFORM
1634
1635 /* This structure describes how a wl_buffer maps to one or more
1636 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1637 * offsets and strides of the planes in the buffer. This table maps a
1638 * wl_drm format code to a description of the planes in the buffer
1639 * that lets us create a __DRIimage for each of the planes. */
1640
1641 static const struct wl_drm_components_descriptor {
1642 uint32_t dri_components;
1643 EGLint components;
1644 int nplanes;
1645 } wl_drm_components[] = {
1646 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1647 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1648 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1649 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1650 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1651 };
1652
1653 static _EGLImage *
1654 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1655 EGLClientBuffer _buffer,
1656 const EGLint *attr_list)
1657 {
1658 struct wl_drm_buffer *buffer;
1659 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1660 const struct wl_drm_components_descriptor *f;
1661 __DRIimage *dri_image;
1662 _EGLImageAttribs attrs;
1663 EGLint err;
1664 int32_t plane;
1665
1666 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1667 (struct wl_resource *) _buffer);
1668 if (!buffer)
1669 return NULL;
1670
1671 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1672 plane = attrs.PlaneWL;
1673 if (err != EGL_SUCCESS) {
1674 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1675 return NULL;
1676 }
1677
1678 f = buffer->driver_format;
1679 if (plane < 0 || plane >= f->nplanes) {
1680 _eglError(EGL_BAD_PARAMETER,
1681 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1682 return NULL;
1683 }
1684
1685 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1686
1687 if (dri_image == NULL) {
1688 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1689 return NULL;
1690 }
1691
1692 return dri2_create_image_from_dri(disp, dri_image);
1693 }
1694 #endif
1695
1696 static EGLBoolean
1697 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1698 EGLuint64KHR *ust, EGLuint64KHR *msc,
1699 EGLuint64KHR *sbc)
1700 {
1701 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1702 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1703 }
1704
1705 /**
1706 * Set the error code after a call to
1707 * dri2_egl_image::dri_image::createImageFromTexture.
1708 */
1709 static void
1710 dri2_create_image_khr_texture_error(int dri_error)
1711 {
1712 EGLint egl_error;
1713
1714 switch (dri_error) {
1715 case __DRI_IMAGE_ERROR_SUCCESS:
1716 return;
1717
1718 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1719 egl_error = EGL_BAD_ALLOC;
1720 break;
1721
1722 case __DRI_IMAGE_ERROR_BAD_MATCH:
1723 egl_error = EGL_BAD_MATCH;
1724 break;
1725
1726 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1727 egl_error = EGL_BAD_PARAMETER;
1728 break;
1729
1730 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1731 egl_error = EGL_BAD_ACCESS;
1732 break;
1733
1734 default:
1735 assert(0);
1736 egl_error = EGL_BAD_MATCH;
1737 break;
1738 }
1739
1740 _eglError(egl_error, "dri2_create_image_khr_texture");
1741 }
1742
1743 static _EGLImage *
1744 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1745 EGLenum target,
1746 EGLClientBuffer buffer,
1747 const EGLint *attr_list)
1748 {
1749 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1750 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1751 struct dri2_egl_image *dri2_img;
1752 GLuint texture = (GLuint) (uintptr_t) buffer;
1753 _EGLImageAttribs attrs;
1754 GLuint depth;
1755 GLenum gl_target;
1756 unsigned error;
1757
1758 if (texture == 0) {
1759 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1760 return EGL_NO_IMAGE_KHR;
1761 }
1762
1763 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1764 return EGL_NO_IMAGE_KHR;
1765
1766 switch (target) {
1767 case EGL_GL_TEXTURE_2D_KHR:
1768 depth = 0;
1769 gl_target = GL_TEXTURE_2D;
1770 break;
1771 case EGL_GL_TEXTURE_3D_KHR:
1772 if (disp->Extensions.KHR_gl_texture_3D_image) {
1773 depth = attrs.GLTextureZOffset;
1774 gl_target = GL_TEXTURE_3D;
1775 break;
1776 }
1777 else {
1778 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1779 return EGL_NO_IMAGE_KHR;
1780 }
1781 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1782 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1783 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1784 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1785 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1786 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1787 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1788 gl_target = GL_TEXTURE_CUBE_MAP;
1789 break;
1790 default:
1791 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1792 return EGL_NO_IMAGE_KHR;
1793 }
1794
1795 dri2_img = malloc(sizeof *dri2_img);
1796 if (!dri2_img) {
1797 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1798 return EGL_NO_IMAGE_KHR;
1799 }
1800
1801 if (!_eglInitImage(&dri2_img->base, disp)) {
1802 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1803 free(dri2_img);
1804 return EGL_NO_IMAGE_KHR;
1805 }
1806
1807 dri2_img->dri_image =
1808 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1809 gl_target,
1810 texture,
1811 depth,
1812 attrs.GLTextureLevel,
1813 &error,
1814 dri2_img);
1815 dri2_create_image_khr_texture_error(error);
1816
1817 if (!dri2_img->dri_image) {
1818 free(dri2_img);
1819 return EGL_NO_IMAGE_KHR;
1820 }
1821 return &dri2_img->base;
1822 }
1823
1824 static EGLBoolean
1825 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1826 EGLint attribute, EGLint *value)
1827 {
1828 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1829 if (!dri2_dpy->vtbl->query_surface)
1830 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1831 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1832 }
1833
1834 static struct wl_buffer*
1835 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1836 _EGLImage *img)
1837 {
1838 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1839 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1840 }
1841
1842 #ifdef HAVE_LIBDRM
1843 static _EGLImage *
1844 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1845 EGLClientBuffer buffer, const EGLint *attr_list)
1846 {
1847 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1848 EGLint format, name, pitch, err;
1849 _EGLImageAttribs attrs;
1850 __DRIimage *dri_image;
1851
1852 name = (EGLint) (uintptr_t) buffer;
1853
1854 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1855 if (err != EGL_SUCCESS)
1856 return NULL;
1857
1858 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1859 attrs.DRMBufferStrideMESA <= 0) {
1860 _eglError(EGL_BAD_PARAMETER,
1861 "bad width, height or stride");
1862 return NULL;
1863 }
1864
1865 switch (attrs.DRMBufferFormatMESA) {
1866 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1867 format = __DRI_IMAGE_FORMAT_ARGB8888;
1868 pitch = attrs.DRMBufferStrideMESA;
1869 break;
1870 default:
1871 _eglError(EGL_BAD_PARAMETER,
1872 "dri2_create_image_khr: unsupported pixmap depth");
1873 return NULL;
1874 }
1875
1876 dri_image =
1877 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1878 attrs.Width,
1879 attrs.Height,
1880 format,
1881 name,
1882 pitch,
1883 NULL);
1884
1885 return dri2_create_image_from_dri(disp, dri_image);
1886 }
1887
1888 static EGLBoolean
1889 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1890 {
1891 unsigned i;
1892
1893 /**
1894 * The spec says:
1895 *
1896 * "Required attributes and their values are as follows:
1897 *
1898 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1899 *
1900 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1901 * by drm_fourcc.h and used as the pixel_format parameter of the
1902 * drm_mode_fb_cmd2 ioctl."
1903 *
1904 * and
1905 *
1906 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1907 * incomplete, EGL_BAD_PARAMETER is generated."
1908 */
1909 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1910 !attrs->DMABufFourCC.IsPresent) {
1911 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1912 return EGL_FALSE;
1913 }
1914
1915 /**
1916 * Also:
1917 *
1918 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1919 * specified for a plane's pitch or offset isn't supported by EGL,
1920 * EGL_BAD_ACCESS is generated."
1921 */
1922 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1923 if (attrs->DMABufPlanePitches[i].IsPresent &&
1924 attrs->DMABufPlanePitches[i].Value <= 0) {
1925 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1926 return EGL_FALSE;
1927 }
1928 }
1929
1930 return EGL_TRUE;
1931 }
1932
1933 /* Returns the total number of file descriptors. Zero indicates an error. */
1934 static unsigned
1935 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1936 {
1937 unsigned i, plane_n;
1938
1939 switch (attrs->DMABufFourCC.Value) {
1940 case DRM_FORMAT_R8:
1941 case DRM_FORMAT_RG88:
1942 case DRM_FORMAT_GR88:
1943 case DRM_FORMAT_RGB332:
1944 case DRM_FORMAT_BGR233:
1945 case DRM_FORMAT_XRGB4444:
1946 case DRM_FORMAT_XBGR4444:
1947 case DRM_FORMAT_RGBX4444:
1948 case DRM_FORMAT_BGRX4444:
1949 case DRM_FORMAT_ARGB4444:
1950 case DRM_FORMAT_ABGR4444:
1951 case DRM_FORMAT_RGBA4444:
1952 case DRM_FORMAT_BGRA4444:
1953 case DRM_FORMAT_XRGB1555:
1954 case DRM_FORMAT_XBGR1555:
1955 case DRM_FORMAT_RGBX5551:
1956 case DRM_FORMAT_BGRX5551:
1957 case DRM_FORMAT_ARGB1555:
1958 case DRM_FORMAT_ABGR1555:
1959 case DRM_FORMAT_RGBA5551:
1960 case DRM_FORMAT_BGRA5551:
1961 case DRM_FORMAT_RGB565:
1962 case DRM_FORMAT_BGR565:
1963 case DRM_FORMAT_RGB888:
1964 case DRM_FORMAT_BGR888:
1965 case DRM_FORMAT_XRGB8888:
1966 case DRM_FORMAT_XBGR8888:
1967 case DRM_FORMAT_RGBX8888:
1968 case DRM_FORMAT_BGRX8888:
1969 case DRM_FORMAT_ARGB8888:
1970 case DRM_FORMAT_ABGR8888:
1971 case DRM_FORMAT_RGBA8888:
1972 case DRM_FORMAT_BGRA8888:
1973 case DRM_FORMAT_XRGB2101010:
1974 case DRM_FORMAT_XBGR2101010:
1975 case DRM_FORMAT_RGBX1010102:
1976 case DRM_FORMAT_BGRX1010102:
1977 case DRM_FORMAT_ARGB2101010:
1978 case DRM_FORMAT_ABGR2101010:
1979 case DRM_FORMAT_RGBA1010102:
1980 case DRM_FORMAT_BGRA1010102:
1981 case DRM_FORMAT_YUYV:
1982 case DRM_FORMAT_YVYU:
1983 case DRM_FORMAT_UYVY:
1984 case DRM_FORMAT_VYUY:
1985 plane_n = 1;
1986 break;
1987 case DRM_FORMAT_NV12:
1988 case DRM_FORMAT_NV21:
1989 case DRM_FORMAT_NV16:
1990 case DRM_FORMAT_NV61:
1991 plane_n = 2;
1992 break;
1993 case DRM_FORMAT_YUV410:
1994 case DRM_FORMAT_YVU410:
1995 case DRM_FORMAT_YUV411:
1996 case DRM_FORMAT_YVU411:
1997 case DRM_FORMAT_YUV420:
1998 case DRM_FORMAT_YVU420:
1999 case DRM_FORMAT_YUV422:
2000 case DRM_FORMAT_YVU422:
2001 case DRM_FORMAT_YUV444:
2002 case DRM_FORMAT_YVU444:
2003 plane_n = 3;
2004 break;
2005 default:
2006 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2007 return 0;
2008 }
2009
2010 /**
2011 * The spec says:
2012 *
2013 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2014 * incomplete, EGL_BAD_PARAMETER is generated."
2015 */
2016 for (i = 0; i < plane_n; ++i) {
2017 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2018 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2019 !attrs->DMABufPlanePitches[i].IsPresent) {
2020 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2021 return 0;
2022 }
2023 }
2024
2025 /**
2026 * The spec also says:
2027 *
2028 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2029 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2030 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2031 * attributes are specified."
2032 */
2033 for (i = plane_n; i < 3; ++i) {
2034 if (attrs->DMABufPlaneFds[i].IsPresent ||
2035 attrs->DMABufPlaneOffsets[i].IsPresent ||
2036 attrs->DMABufPlanePitches[i].IsPresent) {
2037 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2038 return 0;
2039 }
2040 }
2041
2042 return plane_n;
2043 }
2044
2045 /**
2046 * The spec says:
2047 *
2048 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2049 * EGL will take a reference to the dma_buf(s) which it will release at any
2050 * time while the EGLDisplay is initialized. It is the responsibility of the
2051 * application to close the dma_buf file descriptors."
2052 *
2053 * Therefore we must never close or otherwise modify the file descriptors.
2054 */
2055 _EGLImage *
2056 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2057 EGLClientBuffer buffer, const EGLint *attr_list)
2058 {
2059 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2060 _EGLImage *res;
2061 EGLint err;
2062 _EGLImageAttribs attrs;
2063 __DRIimage *dri_image;
2064 unsigned num_fds;
2065 unsigned i;
2066 int fds[3];
2067 int pitches[3];
2068 int offsets[3];
2069 unsigned error;
2070
2071 /**
2072 * The spec says:
2073 *
2074 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2075 * error EGL_BAD_PARAMETER is generated."
2076 */
2077 if (buffer != NULL) {
2078 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2079 return NULL;
2080 }
2081
2082 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2083 if (err != EGL_SUCCESS) {
2084 _eglError(err, "bad attribute");
2085 return NULL;
2086 }
2087
2088 if (!dri2_check_dma_buf_attribs(&attrs))
2089 return NULL;
2090
2091 num_fds = dri2_check_dma_buf_format(&attrs);
2092 if (!num_fds)
2093 return NULL;
2094
2095 for (i = 0; i < num_fds; ++i) {
2096 fds[i] = attrs.DMABufPlaneFds[i].Value;
2097 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2098 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2099 }
2100
2101 dri_image =
2102 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2103 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2104 fds, num_fds, pitches, offsets,
2105 attrs.DMABufYuvColorSpaceHint.Value,
2106 attrs.DMABufSampleRangeHint.Value,
2107 attrs.DMABufChromaHorizontalSiting.Value,
2108 attrs.DMABufChromaVerticalSiting.Value,
2109 &error,
2110 NULL);
2111 dri2_create_image_khr_texture_error(error);
2112
2113 if (!dri_image)
2114 return EGL_NO_IMAGE_KHR;
2115
2116 res = dri2_create_image_from_dri(disp, dri_image);
2117
2118 return res;
2119 }
2120 static _EGLImage *
2121 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2122 const EGLint *attr_list)
2123 {
2124 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2125 struct dri2_egl_image *dri2_img;
2126 _EGLImageAttribs attrs;
2127 unsigned int dri_use, valid_mask;
2128 int format;
2129 EGLint err = EGL_SUCCESS;
2130
2131 (void) drv;
2132
2133 dri2_img = malloc(sizeof *dri2_img);
2134 if (!dri2_img) {
2135 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2136 return EGL_NO_IMAGE_KHR;
2137 }
2138
2139 if (!attr_list) {
2140 err = EGL_BAD_PARAMETER;
2141 goto cleanup_img;
2142 }
2143
2144 if (!_eglInitImage(&dri2_img->base, disp)) {
2145 err = EGL_BAD_PARAMETER;
2146 goto cleanup_img;
2147 }
2148
2149 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2150 if (err != EGL_SUCCESS)
2151 goto cleanup_img;
2152
2153 if (attrs.Width <= 0 || attrs.Height <= 0) {
2154 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2155 attrs.Width, attrs.Height);
2156 goto cleanup_img;
2157 }
2158
2159 switch (attrs.DRMBufferFormatMESA) {
2160 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2161 format = __DRI_IMAGE_FORMAT_ARGB8888;
2162 break;
2163 default:
2164 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2165 attrs.DRMBufferFormatMESA);
2166 goto cleanup_img;
2167 }
2168
2169 valid_mask =
2170 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2171 EGL_DRM_BUFFER_USE_SHARE_MESA |
2172 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2173 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2174 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2175 attrs.DRMBufferUseMESA & ~valid_mask);
2176 goto cleanup_img;
2177 }
2178
2179 dri_use = 0;
2180 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2181 dri_use |= __DRI_IMAGE_USE_SHARE;
2182 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2183 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2184 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2185 dri_use |= __DRI_IMAGE_USE_CURSOR;
2186
2187 dri2_img->dri_image =
2188 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2189 attrs.Width, attrs.Height,
2190 format, dri_use, dri2_img);
2191 if (dri2_img->dri_image == NULL) {
2192 err = EGL_BAD_ALLOC;
2193 goto cleanup_img;
2194 }
2195
2196 return &dri2_img->base;
2197
2198 cleanup_img:
2199 free(dri2_img);
2200 _eglError(err, "dri2_create_drm_image_mesa");
2201
2202 return EGL_NO_IMAGE_KHR;
2203 }
2204
2205 static EGLBoolean
2206 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2207 EGLint *name, EGLint *handle, EGLint *stride)
2208 {
2209 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2210 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2211
2212 (void) drv;
2213
2214 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2215 __DRI_IMAGE_ATTRIB_NAME, name)) {
2216 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2217 return EGL_FALSE;
2218 }
2219
2220 if (handle)
2221 dri2_dpy->image->queryImage(dri2_img->dri_image,
2222 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2223
2224 if (stride)
2225 dri2_dpy->image->queryImage(dri2_img->dri_image,
2226 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2227
2228 return EGL_TRUE;
2229 }
2230
2231 static EGLBoolean
2232 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2233 _EGLImage *img,
2234 EGLint *fourcc, EGLint *nplanes,
2235 EGLuint64KHR *modifiers)
2236 {
2237 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2238 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2239
2240 (void) drv;
2241
2242
2243 if (nplanes)
2244 dri2_dpy->image->queryImage(dri2_img->dri_image,
2245 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2246 if (fourcc)
2247 dri2_dpy->image->queryImage(dri2_img->dri_image,
2248 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2249
2250 if (modifiers)
2251 *modifiers = 0;
2252
2253 return EGL_TRUE;
2254 }
2255
2256 static EGLBoolean
2257 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2258 int *fds, EGLint *strides, EGLint *offsets)
2259 {
2260 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2261 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2262
2263 (void) drv;
2264
2265 /* rework later to provide multiple fds/strides/offsets */
2266 if (fds)
2267 dri2_dpy->image->queryImage(dri2_img->dri_image,
2268 __DRI_IMAGE_ATTRIB_FD, fds);
2269
2270 if (strides)
2271 dri2_dpy->image->queryImage(dri2_img->dri_image,
2272 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2273
2274 if (offsets) {
2275 int img_offset;
2276 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2277 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2278 if (ret)
2279 offsets[0] = img_offset;
2280 else
2281 offsets[0] = 0;
2282 }
2283
2284 return EGL_TRUE;
2285 }
2286
2287 #endif
2288
2289 _EGLImage *
2290 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2291 _EGLContext *ctx, EGLenum target,
2292 EGLClientBuffer buffer, const EGLint *attr_list)
2293 {
2294 (void) drv;
2295
2296 switch (target) {
2297 case EGL_GL_TEXTURE_2D_KHR:
2298 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2299 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2300 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2301 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2302 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2303 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2304 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2305 case EGL_GL_TEXTURE_3D_KHR:
2306 if (disp->Extensions.KHR_gl_texture_3D_image) {
2307 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2308 }
2309 else {
2310 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2311 return EGL_NO_IMAGE_KHR;
2312 }
2313 case EGL_GL_RENDERBUFFER_KHR:
2314 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2315 #ifdef HAVE_LIBDRM
2316 case EGL_DRM_BUFFER_MESA:
2317 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2318 case EGL_LINUX_DMA_BUF_EXT:
2319 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2320 #endif
2321 #ifdef HAVE_WAYLAND_PLATFORM
2322 case EGL_WAYLAND_BUFFER_WL:
2323 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2324 #endif
2325 default:
2326 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2327 return EGL_NO_IMAGE_KHR;
2328 }
2329 }
2330
2331 static EGLBoolean
2332 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2333 {
2334 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2335 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2336
2337 (void) drv;
2338
2339 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2340 free(dri2_img);
2341
2342 return EGL_TRUE;
2343 }
2344
2345 #ifdef HAVE_WAYLAND_PLATFORM
2346
2347 static void
2348 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2349 struct wl_drm_buffer *buffer)
2350 {
2351 _EGLDisplay *disp = user_data;
2352 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2353 __DRIimage *img;
2354 int i, dri_components = 0;
2355
2356 if (fd == -1)
2357 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2358 buffer->width,
2359 buffer->height,
2360 buffer->format,
2361 (int*)&name, 1,
2362 buffer->stride,
2363 buffer->offset,
2364 NULL);
2365 else
2366 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2367 buffer->width,
2368 buffer->height,
2369 buffer->format,
2370 &fd, 1,
2371 buffer->stride,
2372 buffer->offset,
2373 NULL);
2374
2375 if (img == NULL)
2376 return;
2377
2378 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2379
2380 buffer->driver_format = NULL;
2381 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2382 if (wl_drm_components[i].dri_components == dri_components)
2383 buffer->driver_format = &wl_drm_components[i];
2384
2385 if (buffer->driver_format == NULL)
2386 dri2_dpy->image->destroyImage(img);
2387 else
2388 buffer->driver_buffer = img;
2389 }
2390
2391 static void
2392 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2393 {
2394 _EGLDisplay *disp = user_data;
2395 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2396
2397 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2398 }
2399
2400 static struct wayland_drm_callbacks wl_drm_callbacks = {
2401 .authenticate = NULL,
2402 .reference_buffer = dri2_wl_reference_buffer,
2403 .release_buffer = dri2_wl_release_buffer
2404 };
2405
2406 static EGLBoolean
2407 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2408 struct wl_display *wl_dpy)
2409 {
2410 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2411 int flags = 0;
2412 uint64_t cap;
2413
2414 (void) drv;
2415
2416 if (dri2_dpy->wl_server_drm)
2417 return EGL_FALSE;
2418
2419 wl_drm_callbacks.authenticate =
2420 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2421
2422 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2423 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2424 dri2_dpy->image->base.version >= 7 &&
2425 dri2_dpy->image->createImageFromFds != NULL)
2426 flags |= WAYLAND_DRM_PRIME;
2427
2428 dri2_dpy->wl_server_drm =
2429 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2430 &wl_drm_callbacks, disp, flags);
2431
2432 if (!dri2_dpy->wl_server_drm)
2433 return EGL_FALSE;
2434
2435 #ifdef HAVE_DRM_PLATFORM
2436 /* We have to share the wl_drm instance with gbm, so gbm can convert
2437 * wl_buffers to gbm bos. */
2438 if (dri2_dpy->gbm_dri)
2439 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2440 #endif
2441
2442 return EGL_TRUE;
2443 }
2444
2445 static EGLBoolean
2446 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2447 struct wl_display *wl_dpy)
2448 {
2449 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2450
2451 (void) drv;
2452
2453 if (!dri2_dpy->wl_server_drm)
2454 return EGL_FALSE;
2455
2456 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2457 dri2_dpy->wl_server_drm = NULL;
2458
2459 return EGL_TRUE;
2460 }
2461
2462 static EGLBoolean
2463 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2464 struct wl_resource *buffer_resource,
2465 EGLint attribute, EGLint *value)
2466 {
2467 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2468 struct wl_drm_buffer *buffer;
2469 const struct wl_drm_components_descriptor *format;
2470
2471 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2472 if (!buffer)
2473 return EGL_FALSE;
2474
2475 format = buffer->driver_format;
2476 switch (attribute) {
2477 case EGL_TEXTURE_FORMAT:
2478 *value = format->components;
2479 return EGL_TRUE;
2480 case EGL_WIDTH:
2481 *value = buffer->width;
2482 return EGL_TRUE;
2483 case EGL_HEIGHT:
2484 *value = buffer->height;
2485 return EGL_TRUE;
2486 }
2487
2488 return EGL_FALSE;
2489 }
2490 #endif
2491
2492 static void
2493 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2494 {
2495 p_atomic_inc(&sync->refcount);
2496 }
2497
2498 static void
2499 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2500 struct dri2_egl_sync *dri2_sync)
2501 {
2502 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2503 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2504 cnd_destroy(&dri2_sync->cond);
2505
2506 if (dri2_sync->fence)
2507 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2508
2509 free(dri2_sync);
2510 }
2511 }
2512
2513 static _EGLSync *
2514 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2515 EGLenum type, const EGLAttrib *attrib_list)
2516 {
2517 _EGLContext *ctx = _eglGetCurrentContext();
2518 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2519 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2520 struct dri2_egl_sync *dri2_sync;
2521 EGLint ret;
2522 pthread_condattr_t attr;
2523
2524 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2525 if (!dri2_sync) {
2526 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2527 return NULL;
2528 }
2529
2530 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2531 free(dri2_sync);
2532 return NULL;
2533 }
2534
2535 switch (type) {
2536 case EGL_SYNC_FENCE_KHR:
2537 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2538 if (!dri2_sync->fence) {
2539 /* Why did it fail? DRI doesn't return an error code, so we emit
2540 * a generic EGL error that doesn't communicate user error.
2541 */
2542 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2543 free(dri2_sync);
2544 return NULL;
2545 }
2546 break;
2547
2548 case EGL_SYNC_CL_EVENT_KHR:
2549 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2550 dri2_dpy->dri_screen,
2551 dri2_sync->base.CLEvent);
2552 /* this can only happen if the cl_event passed in is invalid. */
2553 if (!dri2_sync->fence) {
2554 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2555 free(dri2_sync);
2556 return NULL;
2557 }
2558
2559 /* the initial status must be "signaled" if the cl_event is signaled */
2560 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2561 dri2_sync->fence, 0, 0))
2562 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2563 break;
2564
2565 case EGL_SYNC_REUSABLE_KHR:
2566 /* intialize attr */
2567 ret = pthread_condattr_init(&attr);
2568
2569 if (ret) {
2570 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2571 free(dri2_sync);
2572 return NULL;
2573 }
2574
2575 /* change clock attribute to CLOCK_MONOTONIC */
2576 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2577
2578 if (ret) {
2579 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2580 free(dri2_sync);
2581 return NULL;
2582 }
2583
2584 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2585
2586 if (ret) {
2587 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2588 free(dri2_sync);
2589 return NULL;
2590 }
2591
2592 /* initial status of reusable sync must be "unsignaled" */
2593 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2594 break;
2595 }
2596
2597 p_atomic_set(&dri2_sync->refcount, 1);
2598 return &dri2_sync->base;
2599 }
2600
2601 static EGLBoolean
2602 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2603 {
2604 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2605 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2606 EGLint ret = EGL_TRUE;
2607 EGLint err;
2608
2609 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2610 * then unlock all threads possibly blocked by the reusable sync before
2611 * destroying it.
2612 */
2613 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2614 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2615 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2616 /* unblock all threads currently blocked by sync */
2617 err = cnd_broadcast(&dri2_sync->cond);
2618
2619 if (err) {
2620 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2621 ret = EGL_FALSE;
2622 }
2623 }
2624 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2625
2626 return ret;
2627 }
2628
2629 static EGLint
2630 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2631 EGLint flags, EGLTime timeout)
2632 {
2633 _EGLContext *ctx = _eglGetCurrentContext();
2634 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2635 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2636 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2637 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2638 unsigned wait_flags = 0;
2639
2640 /* timespecs for cnd_timedwait */
2641 struct timespec current;
2642 xtime expire;
2643
2644 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2645
2646 /* The EGL_KHR_fence_sync spec states:
2647 *
2648 * "If no context is current for the bound API,
2649 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2650 */
2651 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2652 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2653
2654 /* the sync object should take a reference while waiting */
2655 dri2_egl_ref_sync(dri2_sync);
2656
2657 switch (sync->Type) {
2658 case EGL_SYNC_FENCE_KHR:
2659 case EGL_SYNC_CL_EVENT_KHR:
2660 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2661 dri2_sync->fence, wait_flags,
2662 timeout))
2663 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2664 else
2665 ret = EGL_TIMEOUT_EXPIRED_KHR;
2666 break;
2667
2668 case EGL_SYNC_REUSABLE_KHR:
2669 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2670 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2671 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2672 dri2_drv->glFlush();
2673 }
2674
2675 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2676 if (timeout == EGL_FOREVER_KHR) {
2677 mtx_lock(&dri2_sync->mutex);
2678 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2679 mtx_unlock(&dri2_sync->mutex);
2680 } else {
2681 /* if reusable sync has not been yet signaled */
2682 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2683 clock_gettime(CLOCK_MONOTONIC, &current);
2684
2685 /* calculating when to expire */
2686 expire.nsec = timeout % 1000000000L;
2687 expire.sec = timeout / 1000000000L;
2688
2689 expire.nsec += current.tv_nsec;
2690 expire.sec += current.tv_sec;
2691
2692 /* expire.nsec now is a number between 0 and 1999999998 */
2693 if (expire.nsec > 999999999L) {
2694 expire.sec++;
2695 expire.nsec -= 1000000000L;
2696 }
2697
2698 mtx_lock(&dri2_sync->mutex);
2699 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2700 mtx_unlock(&dri2_sync->mutex);
2701
2702 if (ret == thrd_busy) {
2703 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2704 ret = EGL_TIMEOUT_EXPIRED_KHR;
2705 } else {
2706 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2707 ret = EGL_FALSE;
2708 }
2709 }
2710 }
2711 }
2712 break;
2713 }
2714 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2715
2716 return ret;
2717 }
2718
2719 static EGLBoolean
2720 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2721 EGLenum mode)
2722 {
2723 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2724 EGLint ret;
2725
2726 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2727 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2728 return EGL_FALSE;
2729 }
2730
2731 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2732 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2733 return EGL_FALSE;
2734 }
2735
2736 dri2_sync->base.SyncStatus = mode;
2737
2738 if (mode == EGL_SIGNALED_KHR) {
2739 ret = cnd_broadcast(&dri2_sync->cond);
2740
2741 /* fail to broadcast */
2742 if (ret) {
2743 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2744 return EGL_FALSE;
2745 }
2746 }
2747
2748 return EGL_TRUE;
2749 }
2750
2751 static EGLint
2752 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2753 {
2754 _EGLContext *ctx = _eglGetCurrentContext();
2755 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2756 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2757 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2758
2759 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2760 dri2_sync->fence, 0);
2761 return EGL_TRUE;
2762 }
2763
2764 static int
2765 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2766 struct mesa_glinterop_device_info *out)
2767 {
2768 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2769 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2770
2771 if (!dri2_dpy->interop)
2772 return MESA_GLINTEROP_UNSUPPORTED;
2773
2774 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2775 }
2776
2777 static int
2778 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2779 struct mesa_glinterop_export_in *in,
2780 struct mesa_glinterop_export_out *out)
2781 {
2782 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2783 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2784
2785 if (!dri2_dpy->interop)
2786 return MESA_GLINTEROP_UNSUPPORTED;
2787
2788 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2789 }
2790
2791 static void
2792 dri2_unload(_EGLDriver *drv)
2793 {
2794 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2795
2796 dlclose(dri2_drv->handle);
2797 free(dri2_drv);
2798 }
2799
2800 static EGLBoolean
2801 dri2_load(_EGLDriver *drv)
2802 {
2803 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2804 #ifdef HAVE_ANDROID_PLATFORM
2805 const char *libname = "libglapi.so";
2806 #elif defined(__APPLE__)
2807 const char *libname = "libglapi.0.dylib";
2808 #elif defined(__CYGWIN__)
2809 const char *libname = "cygglapi-0.dll";
2810 #elif defined(__linux__)
2811 const char *libname = "libglapi.so.0";
2812 #else
2813 #error Unknown glapi provider for this platform
2814 #endif
2815 void *handle;
2816
2817 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2818 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2819 if (!handle) {
2820 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
2821 goto no_handle;
2822 }
2823
2824 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2825 dlsym(handle, "_glapi_get_proc_address");
2826
2827 /* if glapi is not available, loading DRI drivers will fail */
2828 if (!dri2_drv->get_proc_address) {
2829 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2830 goto no_symbol;
2831 }
2832
2833 dri2_drv->glFlush = (void (*)(void))
2834 dri2_drv->get_proc_address("glFlush");
2835
2836 /* if glFlush is not available things are horribly broken */
2837 if (!dri2_drv->glFlush) {
2838 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
2839 goto no_symbol;
2840 }
2841
2842 dri2_drv->handle = handle;
2843 return EGL_TRUE;
2844
2845 no_symbol:
2846 dlclose(handle);
2847 no_handle:
2848 return EGL_FALSE;
2849 }
2850
2851 /**
2852 * This is the main entrypoint into the driver, called by libEGL.
2853 * Create a new _EGLDriver object and init its dispatch table.
2854 */
2855 _EGLDriver *
2856 _eglBuiltInDriverDRI2(const char *args)
2857 {
2858 struct dri2_egl_driver *dri2_drv;
2859
2860 (void) args;
2861
2862 dri2_drv = calloc(1, sizeof *dri2_drv);
2863 if (!dri2_drv)
2864 return NULL;
2865
2866 if (!dri2_load(&dri2_drv->base)) {
2867 free(dri2_drv);
2868 return NULL;
2869 }
2870
2871 _eglInitDriverFallbacks(&dri2_drv->base);
2872 dri2_drv->base.API.Initialize = dri2_initialize;
2873 dri2_drv->base.API.Terminate = dri2_terminate;
2874 dri2_drv->base.API.CreateContext = dri2_create_context;
2875 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2876 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2877 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2878 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2879 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2880 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2881 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2882 dri2_drv->base.API.WaitClient = dri2_wait_client;
2883 dri2_drv->base.API.WaitNative = dri2_wait_native;
2884 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2885 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2886 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2887 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2888 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2889 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2890 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2891 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2892 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2893 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2894 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2895 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2896 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2897 #ifdef HAVE_LIBDRM
2898 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2899 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2900 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2901 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2902 #endif
2903 #ifdef HAVE_WAYLAND_PLATFORM
2904 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2905 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2906 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2907 #endif
2908 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2909 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2910 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2911 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2912 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2913 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2914 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2915 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2916
2917 dri2_drv->base.Name = "DRI2";
2918 dri2_drv->base.Unload = dri2_unload;
2919
2920 return &dri2_drv->base;
2921 }