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egl/dri2: coding style fix
[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;
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 dri2_dpy = disp->DriverData;
173 _eglInitConfig(&base, disp, id);
174
175 i = 0;
176 double_buffer = 0;
177 bind_to_texture_rgb = 0;
178 bind_to_texture_rgba = 0;
179
180 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
181 switch (attrib) {
182 case __DRI_ATTRIB_RENDER_TYPE:
183 if (value & __DRI_ATTRIB_RGBA_BIT)
184 value = EGL_RGB_BUFFER;
185 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
186 value = EGL_LUMINANCE_BUFFER;
187 else
188 return NULL;
189 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
190 break;
191
192 case __DRI_ATTRIB_CONFIG_CAVEAT:
193 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
194 value = EGL_NON_CONFORMANT_CONFIG;
195 else if (value & __DRI_ATTRIB_SLOW_BIT)
196 value = EGL_SLOW_CONFIG;
197 else
198 value = EGL_NONE;
199 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
200 break;
201
202 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
203 bind_to_texture_rgb = value;
204 break;
205
206 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
207 bind_to_texture_rgba = value;
208 break;
209
210 case __DRI_ATTRIB_DOUBLE_BUFFER:
211 double_buffer = value;
212 break;
213
214 case __DRI_ATTRIB_RED_MASK:
215 dri_masks[0] = value;
216 break;
217
218 case __DRI_ATTRIB_GREEN_MASK:
219 dri_masks[1] = value;
220 break;
221
222 case __DRI_ATTRIB_BLUE_MASK:
223 dri_masks[2] = value;
224 break;
225
226 case __DRI_ATTRIB_ALPHA_MASK:
227 dri_masks[3] = value;
228 break;
229
230 case __DRI_ATTRIB_ACCUM_RED_SIZE:
231 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
232 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
233 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
234 /* Don't expose visuals with the accumulation buffer. */
235 if (value > 0)
236 return NULL;
237 break;
238
239 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
240 srgb = value != 0;
241 if (!disp->Extensions.KHR_gl_colorspace && srgb)
242 return NULL;
243 break;
244
245 default:
246 key = dri2_to_egl_attribute_map[attrib];
247 if (key != 0)
248 _eglSetConfigKey(&base, key, value);
249 break;
250 }
251 }
252
253 if (attr_list)
254 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
255 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
256
257 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
258 return NULL;
259
260 base.NativeRenderable = EGL_TRUE;
261
262 base.SurfaceType = surface_type;
263 if (surface_type & (EGL_PBUFFER_BIT |
264 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
265 base.BindToTextureRGB = bind_to_texture_rgb;
266 if (base.AlphaSize > 0)
267 base.BindToTextureRGBA = bind_to_texture_rgba;
268 }
269
270 base.RenderableType = disp->ClientAPIs;
271 base.Conformant = disp->ClientAPIs;
272
273 base.MinSwapInterval = dri2_dpy->min_swap_interval;
274 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
275
276 if (!_eglValidateConfig(&base, EGL_FALSE)) {
277 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
278 return NULL;
279 }
280
281 config_id = base.ConfigID;
282 base.ConfigID = EGL_DONT_CARE;
283 base.SurfaceType = EGL_DONT_CARE;
284 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
285 (_EGLArrayForEach) dri2_match_config, &base);
286
287 if (num_configs == 1) {
288 conf = (struct dri2_egl_config *) matching_config;
289
290 if (double_buffer && !conf->dri_double_config[srgb])
291 conf->dri_double_config[srgb] = dri_config;
292 else if (!double_buffer && !conf->dri_single_config[srgb])
293 conf->dri_single_config[srgb] = dri_config;
294 else
295 /* a similar config type is already added (unlikely) => discard */
296 return NULL;
297 }
298 else if (num_configs == 0) {
299 conf = calloc(1, sizeof *conf);
300 if (conf == NULL)
301 return NULL;
302
303 if (double_buffer)
304 conf->dri_double_config[srgb] = dri_config;
305 else
306 conf->dri_single_config[srgb] = dri_config;
307
308 memcpy(&conf->base, &base, sizeof base);
309 conf->base.SurfaceType = 0;
310 conf->base.ConfigID = config_id;
311
312 _eglLinkConfig(&conf->base);
313 }
314 else {
315 assert(0);
316 return NULL;
317 }
318
319 if (double_buffer) {
320 surface_type &= ~EGL_PIXMAP_BIT;
321 }
322
323 /* No support for pbuffer + MSAA for now.
324 *
325 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
326 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
327 */
328 if (base.Samples) {
329 surface_type &= ~EGL_PBUFFER_BIT;
330 }
331
332 conf->base.SurfaceType |= surface_type;
333
334 return conf;
335 }
336
337 __DRIimage *
338 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
339 {
340 _EGLDisplay *disp = data;
341 struct dri2_egl_image *dri2_img;
342 _EGLImage *img;
343
344 (void) screen;
345
346 img = _eglLookupImage(image, disp);
347 if (img == NULL) {
348 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
349 return NULL;
350 }
351
352 dri2_img = dri2_egl_image(image);
353
354 return dri2_img->dri_image;
355 }
356
357 const __DRIimageLookupExtension image_lookup_extension = {
358 .base = { __DRI_IMAGE_LOOKUP, 1 },
359
360 .lookupEGLImage = dri2_lookup_egl_image
361 };
362
363 struct dri2_extension_match {
364 const char *name;
365 int version;
366 int offset;
367 };
368
369 static struct dri2_extension_match dri3_driver_extensions[] = {
370 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
371 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
372 { NULL, 0, 0 }
373 };
374
375 static struct dri2_extension_match dri2_driver_extensions[] = {
376 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
377 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
378 { NULL, 0, 0 }
379 };
380
381 static struct dri2_extension_match dri2_core_extensions[] = {
382 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
383 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
384 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
385 { NULL, 0, 0 }
386 };
387
388 static struct dri2_extension_match swrast_driver_extensions[] = {
389 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
390 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
391 { NULL, 0, 0 }
392 };
393
394 static struct dri2_extension_match swrast_core_extensions[] = {
395 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
396 { NULL, 0, 0 }
397 };
398
399 static EGLBoolean
400 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
401 struct dri2_extension_match *matches,
402 const __DRIextension **extensions)
403 {
404 int i, j, ret = EGL_TRUE;
405 void *field;
406
407 for (i = 0; extensions[i]; i++) {
408 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
409 for (j = 0; matches[j].name; j++) {
410 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
411 extensions[i]->version >= matches[j].version) {
412 field = ((char *) dri2_dpy + matches[j].offset);
413 *(const __DRIextension **) field = extensions[i];
414 _eglLog(_EGL_INFO, "found extension %s version %d",
415 extensions[i]->name, extensions[i]->version);
416 }
417 }
418 }
419
420 for (j = 0; matches[j].name; j++) {
421 field = ((char *) dri2_dpy + matches[j].offset);
422 if (*(const __DRIextension **) field == NULL) {
423 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
424 matches[j].name, matches[j].version);
425 ret = EGL_FALSE;
426 }
427 }
428
429 return ret;
430 }
431
432 static const __DRIextension **
433 dri2_open_driver(_EGLDisplay *disp)
434 {
435 struct dri2_egl_display *dri2_dpy = disp->DriverData;
436 const __DRIextension **extensions = NULL;
437 char path[PATH_MAX], *search_paths, *p, *next, *end;
438 char *get_extensions_name;
439 const __DRIextension **(*get_extensions)(void);
440
441 search_paths = NULL;
442 if (geteuid() == getuid()) {
443 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
444 search_paths = getenv("LIBGL_DRIVERS_PATH");
445 }
446 if (search_paths == NULL)
447 search_paths = DEFAULT_DRIVER_DIR;
448
449 dri2_dpy->driver = NULL;
450 end = search_paths + strlen(search_paths);
451 for (p = search_paths; p < end; p = next + 1) {
452 int len;
453 next = strchr(p, ':');
454 if (next == NULL)
455 next = end;
456
457 len = next - p;
458 #if GLX_USE_TLS
459 snprintf(path, sizeof path,
460 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
461 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
462 #endif
463 if (dri2_dpy->driver == NULL) {
464 snprintf(path, sizeof path,
465 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
466 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
467 if (dri2_dpy->driver == NULL)
468 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
469 }
470 /* not need continue to loop all paths once the driver is found */
471 if (dri2_dpy->driver != NULL)
472 break;
473
474 #ifdef ANDROID
475 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
476 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
477 if (dri2_dpy->driver == NULL)
478 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
479 else
480 break;
481 #endif
482 }
483
484 if (dri2_dpy->driver == NULL) {
485 _eglLog(_EGL_WARNING,
486 "DRI2: failed to open %s (search paths %s)",
487 dri2_dpy->driver_name, search_paths);
488 return NULL;
489 }
490
491 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
492
493 if (asprintf(&get_extensions_name, "%s_%s",
494 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
495 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
496 if (get_extensions) {
497 extensions = get_extensions();
498 } else {
499 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
500 get_extensions_name, dlerror());
501 }
502 free(get_extensions_name);
503 }
504
505 if (!extensions)
506 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
507 if (extensions == NULL) {
508 _eglLog(_EGL_WARNING,
509 "DRI2: driver exports no extensions (%s)", dlerror());
510 dlclose(dri2_dpy->driver);
511 }
512
513 return extensions;
514 }
515
516 EGLBoolean
517 dri2_load_driver_dri3(_EGLDisplay *disp)
518 {
519 struct dri2_egl_display *dri2_dpy = disp->DriverData;
520 const __DRIextension **extensions;
521
522 extensions = dri2_open_driver(disp);
523 if (!extensions)
524 return EGL_FALSE;
525
526 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions)) {
527 dlclose(dri2_dpy->driver);
528 return EGL_FALSE;
529 }
530 dri2_dpy->driver_extensions = extensions;
531
532 return EGL_TRUE;
533 }
534
535 EGLBoolean
536 dri2_load_driver(_EGLDisplay *disp)
537 {
538 struct dri2_egl_display *dri2_dpy = disp->DriverData;
539 const __DRIextension **extensions;
540
541 extensions = dri2_open_driver(disp);
542 if (!extensions)
543 return EGL_FALSE;
544
545 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
546 dlclose(dri2_dpy->driver);
547 return EGL_FALSE;
548 }
549 dri2_dpy->driver_extensions = extensions;
550
551 return EGL_TRUE;
552 }
553
554 EGLBoolean
555 dri2_load_driver_swrast(_EGLDisplay *disp)
556 {
557 struct dri2_egl_display *dri2_dpy = disp->DriverData;
558 const __DRIextension **extensions;
559
560 extensions = dri2_open_driver(disp);
561 if (!extensions)
562 return EGL_FALSE;
563
564 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
565 dlclose(dri2_dpy->driver);
566 return EGL_FALSE;
567 }
568 dri2_dpy->driver_extensions = extensions;
569
570 return EGL_TRUE;
571 }
572
573 static unsigned
574 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
575 {
576 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
577 unsigned int value = 0;
578
579 if (!rendererQuery ||
580 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
581 return 0;
582
583 return value;
584 }
585
586 void
587 dri2_setup_screen(_EGLDisplay *disp)
588 {
589 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
590 unsigned int api_mask;
591
592 if (dri2_dpy->image_driver) {
593 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
594 } else if (dri2_dpy->dri2) {
595 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
596 } else {
597 assert(dri2_dpy->swrast);
598 api_mask = 1 << __DRI_API_OPENGL |
599 1 << __DRI_API_GLES |
600 1 << __DRI_API_GLES2 |
601 1 << __DRI_API_GLES3;
602 }
603
604 disp->ClientAPIs = 0;
605 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
606 disp->ClientAPIs |= EGL_OPENGL_BIT;
607 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
608 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
609 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
610 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
611 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
612 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
613
614 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
615 disp->Extensions.KHR_no_config_context = EGL_TRUE;
616 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
617
618 if (dri2_renderer_query_integer(dri2_dpy,
619 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
620 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
621
622 if (dri2_dpy->image_driver ||
623 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
624 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
625 disp->Extensions.KHR_create_context = EGL_TRUE;
626
627 if (dri2_dpy->robustness)
628 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
629 }
630
631 if (dri2_dpy->fence) {
632 disp->Extensions.KHR_fence_sync = EGL_TRUE;
633 disp->Extensions.KHR_wait_sync = EGL_TRUE;
634 if (dri2_dpy->fence->get_fence_from_cl_event)
635 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
636 }
637
638 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
639
640 if (dri2_dpy->image) {
641 if (dri2_dpy->image->base.version >= 10 &&
642 dri2_dpy->image->getCapabilities != NULL) {
643 int capabilities;
644
645 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
646 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
647
648 if (dri2_dpy->image->base.version >= 11)
649 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
650 } else {
651 disp->Extensions.MESA_drm_image = EGL_TRUE;
652 if (dri2_dpy->image->base.version >= 11)
653 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
654 }
655
656 disp->Extensions.KHR_image_base = EGL_TRUE;
657 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
658 if (dri2_dpy->image->base.version >= 5 &&
659 dri2_dpy->image->createImageFromTexture) {
660 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
661 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
662 }
663 if (dri2_renderer_query_integer(dri2_dpy,
664 __DRI2_RENDERER_HAS_TEXTURE_3D))
665 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
666 #ifdef HAVE_LIBDRM
667 if (dri2_dpy->image->base.version >= 8 &&
668 dri2_dpy->image->createImageFromDmaBufs) {
669 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
670 }
671 #endif
672 }
673 }
674
675 /* All platforms but DRM call this function to create the screen, query the
676 * dri extensions, setup the vtables and populate the driver_configs.
677 * DRM inherits all that information from its display - GBM.
678 */
679 EGLBoolean
680 dri2_create_screen(_EGLDisplay *disp)
681 {
682 const __DRIextension **extensions;
683 struct dri2_egl_display *dri2_dpy;
684 unsigned i;
685
686 dri2_dpy = disp->DriverData;
687
688 if (dri2_dpy->image_driver) {
689 dri2_dpy->dri_screen =
690 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
691 dri2_dpy->extensions,
692 dri2_dpy->driver_extensions,
693 &dri2_dpy->driver_configs,
694 disp);
695 } else if (dri2_dpy->dri2) {
696 if (dri2_dpy->dri2->base.version >= 4) {
697 dri2_dpy->dri_screen =
698 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
699 dri2_dpy->extensions,
700 dri2_dpy->driver_extensions,
701 &dri2_dpy->driver_configs, disp);
702 } else {
703 dri2_dpy->dri_screen =
704 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
705 dri2_dpy->extensions,
706 &dri2_dpy->driver_configs, disp);
707 }
708 } else {
709 assert(dri2_dpy->swrast);
710 if (dri2_dpy->swrast->base.version >= 4) {
711 dri2_dpy->dri_screen =
712 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
713 dri2_dpy->driver_extensions,
714 &dri2_dpy->driver_configs, disp);
715 } else {
716 dri2_dpy->dri_screen =
717 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
718 &dri2_dpy->driver_configs, disp);
719 }
720 }
721
722 if (dri2_dpy->dri_screen == NULL) {
723 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
724 return EGL_FALSE;
725 }
726
727 dri2_dpy->own_dri_screen = 1;
728
729 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
730
731 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
732 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
733 goto cleanup_dri_screen;
734 } else {
735 assert(dri2_dpy->swrast);
736 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
737 goto cleanup_dri_screen;
738 }
739
740 for (i = 0; extensions[i]; i++) {
741 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
742 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
743 }
744 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
745 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
746 }
747 if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
748 dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
749 }
750 if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
751 dri2_dpy->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
752 }
753 if (strcmp(extensions[i]->name, __DRI2_INTEROP) == 0)
754 dri2_dpy->interop = (__DRI2interopExtension *) extensions[i];
755 }
756
757 dri2_setup_screen(disp);
758
759 return EGL_TRUE;
760
761 cleanup_dri_screen:
762 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
763
764 return EGL_FALSE;
765 }
766
767 /**
768 * Called via eglInitialize(), GLX_drv->API.Initialize().
769 *
770 * This must be guaranteed to be called exactly once, even if eglInitialize is
771 * called many times (without a eglTerminate in between).
772 */
773 static EGLBoolean
774 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
775 {
776 EGLBoolean ret = EGL_FALSE;
777 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
778
779 /* In the case where the application calls eglMakeCurrent(context1),
780 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
781 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
782 * initialized, as we need it to be able to free context1 correctly.
783 *
784 * It would probably be safest to forcibly release the display with
785 * dri2_display_release, to make sure the display is reinitialized correctly.
786 * However, the EGL spec states that we need to keep a reference to the
787 * current context (so we cannot call dri2_make_current(NULL)), and therefore
788 * we would leak context1 as we would be missing the old display connection
789 * to free it up correctly.
790 */
791 if (dri2_dpy) {
792 dri2_dpy->ref_count++;
793 return EGL_TRUE;
794 }
795
796 /* not until swrast_dri is supported */
797 if (disp->Options.UseFallback)
798 return EGL_FALSE;
799
800 /* Nothing to initialize for a test only display */
801 if (disp->Options.TestOnly)
802 return EGL_TRUE;
803
804 switch (disp->Platform) {
805 #ifdef HAVE_SURFACELESS_PLATFORM
806 case _EGL_PLATFORM_SURFACELESS:
807 ret = dri2_initialize_surfaceless(drv, disp);
808 break;
809 #endif
810 #ifdef HAVE_X11_PLATFORM
811 case _EGL_PLATFORM_X11:
812 ret = dri2_initialize_x11(drv, disp);
813 break;
814 #endif
815 #ifdef HAVE_DRM_PLATFORM
816 case _EGL_PLATFORM_DRM:
817 ret = dri2_initialize_drm(drv, disp);
818 break;
819 #endif
820 #ifdef HAVE_WAYLAND_PLATFORM
821 case _EGL_PLATFORM_WAYLAND:
822 ret = dri2_initialize_wayland(drv, disp);
823 break;
824 #endif
825 #ifdef HAVE_ANDROID_PLATFORM
826 case _EGL_PLATFORM_ANDROID:
827 ret = dri2_initialize_android(drv, disp);
828 break;
829 #endif
830 default:
831 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
832 return EGL_FALSE;
833 }
834
835 if (ret) {
836 dri2_dpy = dri2_egl_display(disp);
837
838 if (!dri2_dpy) {
839 return EGL_FALSE;
840 }
841
842 dri2_dpy->ref_count++;
843 }
844
845 return ret;
846 }
847
848 /**
849 * Decrement display reference count, and free up display if necessary.
850 */
851 static void
852 dri2_display_release(_EGLDisplay *disp)
853 {
854 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
855 unsigned i;
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 /**
1240 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1241 */
1242 static EGLBoolean
1243 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1244 _EGLSurface *rsurf, _EGLContext *ctx)
1245 {
1246 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1247 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1248 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1249 _EGLContext *old_ctx;
1250 _EGLSurface *old_dsurf, *old_rsurf;
1251 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1252 __DRIdrawable *ddraw, *rdraw;
1253 __DRIcontext *cctx;
1254 EGLBoolean unbind;
1255
1256 if (!dri2_dpy)
1257 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1258
1259 /* make new bindings */
1260 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1261 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1262 return EGL_FALSE;
1263 }
1264
1265 /* flush before context switch */
1266 if (old_ctx)
1267 dri2_drv->glFlush();
1268
1269 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1270 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1271 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1272
1273 if (old_ctx) {
1274 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1275 dri2_dpy->core->unbindContext(old_cctx);
1276 }
1277
1278 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1279
1280 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1281 if (old_dsurf)
1282 drv->API.DestroySurface(drv, disp, old_dsurf);
1283 if (old_rsurf)
1284 drv->API.DestroySurface(drv, disp, old_rsurf);
1285
1286 if (!unbind)
1287 dri2_dpy->ref_count++;
1288 if (old_ctx) {
1289 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1290 drv->API.DestroyContext(drv, disp, old_ctx);
1291 dri2_display_release(old_disp);
1292 }
1293
1294 return EGL_TRUE;
1295 } else {
1296 /* undo the previous _eglBindContext */
1297 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1298 assert(&dri2_ctx->base == ctx &&
1299 tmp_dsurf == dsurf &&
1300 tmp_rsurf == rsurf);
1301
1302 _eglPutSurface(dsurf);
1303 _eglPutSurface(rsurf);
1304 _eglPutContext(ctx);
1305
1306 _eglPutSurface(old_dsurf);
1307 _eglPutSurface(old_rsurf);
1308 _eglPutContext(old_ctx);
1309
1310 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1311 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1312 * as EGL_SUCCESS.
1313 */
1314 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1315 }
1316 }
1317
1318 __DRIdrawable *
1319 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1320 {
1321 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1322
1323 return dri2_surf->dri_drawable;
1324 }
1325
1326 /*
1327 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1328 */
1329 static _EGLProc
1330 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1331 {
1332 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1333
1334 return dri2_drv->get_proc_address(procname);
1335 }
1336
1337 static _EGLSurface*
1338 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1339 _EGLConfig *conf, void *native_window,
1340 const EGLint *attrib_list)
1341 {
1342 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1343 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1344 attrib_list);
1345 }
1346
1347 static _EGLSurface*
1348 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1349 _EGLConfig *conf, void *native_pixmap,
1350 const EGLint *attrib_list)
1351 {
1352 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1353 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1354 attrib_list);
1355 }
1356
1357 static _EGLSurface*
1358 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1359 _EGLConfig *conf, const EGLint *attrib_list)
1360 {
1361 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1362 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1363 }
1364
1365 static EGLBoolean
1366 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1367 {
1368 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1369 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1370 }
1371
1372 static EGLBoolean
1373 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1374 EGLint interval)
1375 {
1376 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1377 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1378 }
1379
1380 /**
1381 * Asks the client API to flush any rendering to the drawable so that we can
1382 * do our swapbuffers.
1383 */
1384 void
1385 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1386 {
1387 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1388 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1389
1390 if (dri2_dpy->flush) {
1391 if (dri2_dpy->flush->base.version >= 4) {
1392 /* We know there's a current context because:
1393 *
1394 * "If surface is not bound to the calling thread’s current
1395 * context, an EGL_BAD_SURFACE error is generated."
1396 */
1397 _EGLContext *ctx = _eglGetCurrentContext();
1398 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1399
1400 /* From the EGL 1.4 spec (page 52):
1401 *
1402 * "The contents of ancillary buffers are always undefined
1403 * after calling eglSwapBuffers."
1404 */
1405 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1406 dri_drawable,
1407 __DRI2_FLUSH_DRAWABLE |
1408 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1409 __DRI2_THROTTLE_SWAPBUFFER);
1410 } else {
1411 dri2_dpy->flush->flush(dri_drawable);
1412 }
1413 }
1414 }
1415
1416 static EGLBoolean
1417 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1418 {
1419 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1420 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1421 }
1422
1423 static EGLBoolean
1424 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1425 _EGLSurface *surf,
1426 const EGLint *rects, EGLint n_rects)
1427 {
1428 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1429 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1430 rects, n_rects);
1431 }
1432
1433 static EGLBoolean
1434 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1435 EGLint numRects, const EGLint *rects)
1436 {
1437 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1438 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1439 }
1440
1441 static EGLBoolean
1442 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1443 EGLint x, EGLint y, EGLint width, EGLint height)
1444 {
1445 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1446 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1447 }
1448
1449 static EGLBoolean
1450 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1451 void *native_pixmap_target)
1452 {
1453 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1454 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1455 }
1456
1457 static EGLint
1458 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1459 {
1460 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1461 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1462 }
1463
1464 static EGLBoolean
1465 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1466 {
1467 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1468 _EGLSurface *surf = ctx->DrawSurface;
1469 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1470
1471 (void) drv;
1472
1473 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1474 * we need to copy fake to real here.*/
1475
1476 if (dri2_dpy->flush != NULL)
1477 dri2_dpy->flush->flush(dri_drawable);
1478
1479 return EGL_TRUE;
1480 }
1481
1482 static EGLBoolean
1483 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1484 {
1485 (void) drv;
1486 (void) disp;
1487
1488 if (engine != EGL_CORE_NATIVE_ENGINE)
1489 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1490 /* glXWaitX(); */
1491
1492 return EGL_TRUE;
1493 }
1494
1495 static EGLBoolean
1496 dri2_bind_tex_image(_EGLDriver *drv,
1497 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1498 {
1499 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1500 struct dri2_egl_context *dri2_ctx;
1501 _EGLContext *ctx;
1502 GLint format, target;
1503 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1504
1505 ctx = _eglGetCurrentContext();
1506 dri2_ctx = dri2_egl_context(ctx);
1507
1508 if (!_eglBindTexImage(drv, disp, surf, buffer))
1509 return EGL_FALSE;
1510
1511 switch (surf->TextureFormat) {
1512 case EGL_TEXTURE_RGB:
1513 format = __DRI_TEXTURE_FORMAT_RGB;
1514 break;
1515 case EGL_TEXTURE_RGBA:
1516 format = __DRI_TEXTURE_FORMAT_RGBA;
1517 break;
1518 default:
1519 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1520 format = __DRI_TEXTURE_FORMAT_RGBA;
1521 }
1522
1523 switch (surf->TextureTarget) {
1524 case EGL_TEXTURE_2D:
1525 target = GL_TEXTURE_2D;
1526 break;
1527 default:
1528 target = GL_TEXTURE_2D;
1529 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1530 }
1531
1532 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1533 target, format,
1534 dri_drawable);
1535
1536 return EGL_TRUE;
1537 }
1538
1539 static EGLBoolean
1540 dri2_release_tex_image(_EGLDriver *drv,
1541 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1542 {
1543 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1544 struct dri2_egl_context *dri2_ctx;
1545 _EGLContext *ctx;
1546 GLint target;
1547 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1548
1549 ctx = _eglGetCurrentContext();
1550 dri2_ctx = dri2_egl_context(ctx);
1551
1552 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1553 return EGL_FALSE;
1554
1555 switch (surf->TextureTarget) {
1556 case EGL_TEXTURE_2D:
1557 target = GL_TEXTURE_2D;
1558 break;
1559 default:
1560 assert(0);
1561 }
1562
1563 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1564 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1565 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1566 target,
1567 dri_drawable);
1568 }
1569
1570 return EGL_TRUE;
1571 }
1572
1573 static _EGLImage*
1574 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1575 EGLenum target, EGLClientBuffer buffer,
1576 const EGLint *attr_list)
1577 {
1578 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1579 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1580 attr_list);
1581 }
1582
1583 static _EGLImage *
1584 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1585 {
1586 struct dri2_egl_image *dri2_img;
1587
1588 if (dri_image == NULL) {
1589 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1590 return NULL;
1591 }
1592
1593 dri2_img = malloc(sizeof *dri2_img);
1594 if (!dri2_img) {
1595 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1596 return NULL;
1597 }
1598
1599 if (!_eglInitImage(&dri2_img->base, disp)) {
1600 free(dri2_img);
1601 return NULL;
1602 }
1603
1604 dri2_img->dri_image = dri_image;
1605
1606 return &dri2_img->base;
1607 }
1608
1609 static _EGLImage *
1610 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1611 EGLClientBuffer buffer,
1612 const EGLint *attr_list)
1613 {
1614 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1615 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1616 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1617 __DRIimage *dri_image;
1618
1619 if (renderbuffer == 0) {
1620 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1621 return EGL_NO_IMAGE_KHR;
1622 }
1623
1624 dri_image =
1625 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1626 renderbuffer, NULL);
1627
1628 return dri2_create_image_from_dri(disp, dri_image);
1629 }
1630
1631 #ifdef HAVE_WAYLAND_PLATFORM
1632
1633 /* This structure describes how a wl_buffer maps to one or more
1634 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1635 * offsets and strides of the planes in the buffer. This table maps a
1636 * wl_drm format code to a description of the planes in the buffer
1637 * that lets us create a __DRIimage for each of the planes. */
1638
1639 static const struct wl_drm_components_descriptor {
1640 uint32_t dri_components;
1641 EGLint components;
1642 int nplanes;
1643 } wl_drm_components[] = {
1644 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1645 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1646 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1647 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1648 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1649 };
1650
1651 static _EGLImage *
1652 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1653 EGLClientBuffer _buffer,
1654 const EGLint *attr_list)
1655 {
1656 struct wl_drm_buffer *buffer;
1657 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1658 const struct wl_drm_components_descriptor *f;
1659 __DRIimage *dri_image;
1660 _EGLImageAttribs attrs;
1661 EGLint err;
1662 int32_t plane;
1663
1664 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1665 (struct wl_resource *) _buffer);
1666 if (!buffer)
1667 return NULL;
1668
1669 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1670 plane = attrs.PlaneWL;
1671 if (err != EGL_SUCCESS) {
1672 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1673 return NULL;
1674 }
1675
1676 f = buffer->driver_format;
1677 if (plane < 0 || plane >= f->nplanes) {
1678 _eglError(EGL_BAD_PARAMETER,
1679 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1680 return NULL;
1681 }
1682
1683 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1684
1685 if (dri_image == NULL) {
1686 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1687 return NULL;
1688 }
1689
1690 return dri2_create_image_from_dri(disp, dri_image);
1691 }
1692 #endif
1693
1694 static EGLBoolean
1695 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1696 EGLuint64KHR *ust, EGLuint64KHR *msc,
1697 EGLuint64KHR *sbc)
1698 {
1699 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1700 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1701 }
1702
1703 /**
1704 * Set the error code after a call to
1705 * dri2_egl_image::dri_image::createImageFromTexture.
1706 */
1707 static void
1708 dri2_create_image_khr_texture_error(int dri_error)
1709 {
1710 EGLint egl_error;
1711
1712 switch (dri_error) {
1713 case __DRI_IMAGE_ERROR_SUCCESS:
1714 return;
1715
1716 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1717 egl_error = EGL_BAD_ALLOC;
1718 break;
1719
1720 case __DRI_IMAGE_ERROR_BAD_MATCH:
1721 egl_error = EGL_BAD_MATCH;
1722 break;
1723
1724 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1725 egl_error = EGL_BAD_PARAMETER;
1726 break;
1727
1728 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1729 egl_error = EGL_BAD_ACCESS;
1730 break;
1731
1732 default:
1733 assert(0);
1734 egl_error = EGL_BAD_MATCH;
1735 break;
1736 }
1737
1738 _eglError(egl_error, "dri2_create_image_khr_texture");
1739 }
1740
1741 static _EGLImage *
1742 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1743 EGLenum target,
1744 EGLClientBuffer buffer,
1745 const EGLint *attr_list)
1746 {
1747 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1748 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1749 struct dri2_egl_image *dri2_img;
1750 GLuint texture = (GLuint) (uintptr_t) buffer;
1751 _EGLImageAttribs attrs;
1752 GLuint depth;
1753 GLenum gl_target;
1754 unsigned error;
1755
1756 if (texture == 0) {
1757 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1758 return EGL_NO_IMAGE_KHR;
1759 }
1760
1761 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1762 return EGL_NO_IMAGE_KHR;
1763
1764 switch (target) {
1765 case EGL_GL_TEXTURE_2D_KHR:
1766 depth = 0;
1767 gl_target = GL_TEXTURE_2D;
1768 break;
1769 case EGL_GL_TEXTURE_3D_KHR:
1770 if (disp->Extensions.KHR_gl_texture_3D_image) {
1771 depth = attrs.GLTextureZOffset;
1772 gl_target = GL_TEXTURE_3D;
1773 break;
1774 }
1775 else {
1776 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1777 return EGL_NO_IMAGE_KHR;
1778 }
1779 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1780 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1781 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1782 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1783 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1784 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1785 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1786 gl_target = GL_TEXTURE_CUBE_MAP;
1787 break;
1788 default:
1789 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1790 return EGL_NO_IMAGE_KHR;
1791 }
1792
1793 dri2_img = malloc(sizeof *dri2_img);
1794 if (!dri2_img) {
1795 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1796 return EGL_NO_IMAGE_KHR;
1797 }
1798
1799 if (!_eglInitImage(&dri2_img->base, disp)) {
1800 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1801 free(dri2_img);
1802 return EGL_NO_IMAGE_KHR;
1803 }
1804
1805 dri2_img->dri_image =
1806 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1807 gl_target,
1808 texture,
1809 depth,
1810 attrs.GLTextureLevel,
1811 &error,
1812 dri2_img);
1813 dri2_create_image_khr_texture_error(error);
1814
1815 if (!dri2_img->dri_image) {
1816 free(dri2_img);
1817 return EGL_NO_IMAGE_KHR;
1818 }
1819 return &dri2_img->base;
1820 }
1821
1822 static EGLBoolean
1823 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1824 EGLint attribute, EGLint *value)
1825 {
1826 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1827 if (!dri2_dpy->vtbl->query_surface)
1828 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1829 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1830 }
1831
1832 static struct wl_buffer*
1833 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1834 _EGLImage *img)
1835 {
1836 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1837 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1838 }
1839
1840 #ifdef HAVE_LIBDRM
1841 static _EGLImage *
1842 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1843 EGLClientBuffer buffer, const EGLint *attr_list)
1844 {
1845 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1846 EGLint format, name, pitch, err;
1847 _EGLImageAttribs attrs;
1848 __DRIimage *dri_image;
1849
1850 name = (EGLint) (uintptr_t) buffer;
1851
1852 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1853 if (err != EGL_SUCCESS)
1854 return NULL;
1855
1856 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1857 attrs.DRMBufferStrideMESA <= 0) {
1858 _eglError(EGL_BAD_PARAMETER,
1859 "bad width, height or stride");
1860 return NULL;
1861 }
1862
1863 switch (attrs.DRMBufferFormatMESA) {
1864 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1865 format = __DRI_IMAGE_FORMAT_ARGB8888;
1866 pitch = attrs.DRMBufferStrideMESA;
1867 break;
1868 default:
1869 _eglError(EGL_BAD_PARAMETER,
1870 "dri2_create_image_khr: unsupported pixmap depth");
1871 return NULL;
1872 }
1873
1874 dri_image =
1875 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1876 attrs.Width,
1877 attrs.Height,
1878 format,
1879 name,
1880 pitch,
1881 NULL);
1882
1883 return dri2_create_image_from_dri(disp, dri_image);
1884 }
1885
1886 static EGLBoolean
1887 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1888 {
1889 unsigned i;
1890
1891 /**
1892 * The spec says:
1893 *
1894 * "Required attributes and their values are as follows:
1895 *
1896 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1897 *
1898 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1899 * by drm_fourcc.h and used as the pixel_format parameter of the
1900 * drm_mode_fb_cmd2 ioctl."
1901 *
1902 * and
1903 *
1904 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1905 * incomplete, EGL_BAD_PARAMETER is generated."
1906 */
1907 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1908 !attrs->DMABufFourCC.IsPresent) {
1909 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1910 return EGL_FALSE;
1911 }
1912
1913 /**
1914 * Also:
1915 *
1916 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1917 * specified for a plane's pitch or offset isn't supported by EGL,
1918 * EGL_BAD_ACCESS is generated."
1919 */
1920 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1921 if (attrs->DMABufPlanePitches[i].IsPresent &&
1922 attrs->DMABufPlanePitches[i].Value <= 0) {
1923 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1924 return EGL_FALSE;
1925 }
1926 }
1927
1928 return EGL_TRUE;
1929 }
1930
1931 /* Returns the total number of file descriptors. Zero indicates an error. */
1932 static unsigned
1933 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1934 {
1935 unsigned i, plane_n;
1936
1937 switch (attrs->DMABufFourCC.Value) {
1938 case DRM_FORMAT_R8:
1939 case DRM_FORMAT_RG88:
1940 case DRM_FORMAT_GR88:
1941 case DRM_FORMAT_RGB332:
1942 case DRM_FORMAT_BGR233:
1943 case DRM_FORMAT_XRGB4444:
1944 case DRM_FORMAT_XBGR4444:
1945 case DRM_FORMAT_RGBX4444:
1946 case DRM_FORMAT_BGRX4444:
1947 case DRM_FORMAT_ARGB4444:
1948 case DRM_FORMAT_ABGR4444:
1949 case DRM_FORMAT_RGBA4444:
1950 case DRM_FORMAT_BGRA4444:
1951 case DRM_FORMAT_XRGB1555:
1952 case DRM_FORMAT_XBGR1555:
1953 case DRM_FORMAT_RGBX5551:
1954 case DRM_FORMAT_BGRX5551:
1955 case DRM_FORMAT_ARGB1555:
1956 case DRM_FORMAT_ABGR1555:
1957 case DRM_FORMAT_RGBA5551:
1958 case DRM_FORMAT_BGRA5551:
1959 case DRM_FORMAT_RGB565:
1960 case DRM_FORMAT_BGR565:
1961 case DRM_FORMAT_RGB888:
1962 case DRM_FORMAT_BGR888:
1963 case DRM_FORMAT_XRGB8888:
1964 case DRM_FORMAT_XBGR8888:
1965 case DRM_FORMAT_RGBX8888:
1966 case DRM_FORMAT_BGRX8888:
1967 case DRM_FORMAT_ARGB8888:
1968 case DRM_FORMAT_ABGR8888:
1969 case DRM_FORMAT_RGBA8888:
1970 case DRM_FORMAT_BGRA8888:
1971 case DRM_FORMAT_XRGB2101010:
1972 case DRM_FORMAT_XBGR2101010:
1973 case DRM_FORMAT_RGBX1010102:
1974 case DRM_FORMAT_BGRX1010102:
1975 case DRM_FORMAT_ARGB2101010:
1976 case DRM_FORMAT_ABGR2101010:
1977 case DRM_FORMAT_RGBA1010102:
1978 case DRM_FORMAT_BGRA1010102:
1979 case DRM_FORMAT_YUYV:
1980 case DRM_FORMAT_YVYU:
1981 case DRM_FORMAT_UYVY:
1982 case DRM_FORMAT_VYUY:
1983 plane_n = 1;
1984 break;
1985 case DRM_FORMAT_NV12:
1986 case DRM_FORMAT_NV21:
1987 case DRM_FORMAT_NV16:
1988 case DRM_FORMAT_NV61:
1989 plane_n = 2;
1990 break;
1991 case DRM_FORMAT_YUV410:
1992 case DRM_FORMAT_YVU410:
1993 case DRM_FORMAT_YUV411:
1994 case DRM_FORMAT_YVU411:
1995 case DRM_FORMAT_YUV420:
1996 case DRM_FORMAT_YVU420:
1997 case DRM_FORMAT_YUV422:
1998 case DRM_FORMAT_YVU422:
1999 case DRM_FORMAT_YUV444:
2000 case DRM_FORMAT_YVU444:
2001 plane_n = 3;
2002 break;
2003 default:
2004 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2005 return 0;
2006 }
2007
2008 /**
2009 * The spec says:
2010 *
2011 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2012 * incomplete, EGL_BAD_PARAMETER is generated."
2013 */
2014 for (i = 0; i < plane_n; ++i) {
2015 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2016 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2017 !attrs->DMABufPlanePitches[i].IsPresent) {
2018 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2019 return 0;
2020 }
2021 }
2022
2023 /**
2024 * The spec also says:
2025 *
2026 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2027 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2028 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2029 * attributes are specified."
2030 */
2031 for (i = plane_n; i < 3; ++i) {
2032 if (attrs->DMABufPlaneFds[i].IsPresent ||
2033 attrs->DMABufPlaneOffsets[i].IsPresent ||
2034 attrs->DMABufPlanePitches[i].IsPresent) {
2035 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2036 return 0;
2037 }
2038 }
2039
2040 return plane_n;
2041 }
2042
2043 /**
2044 * The spec says:
2045 *
2046 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2047 * EGL will take a reference to the dma_buf(s) which it will release at any
2048 * time while the EGLDisplay is initialized. It is the responsibility of the
2049 * application to close the dma_buf file descriptors."
2050 *
2051 * Therefore we must never close or otherwise modify the file descriptors.
2052 */
2053 _EGLImage *
2054 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2055 EGLClientBuffer buffer, const EGLint *attr_list)
2056 {
2057 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2058 _EGLImage *res;
2059 EGLint err;
2060 _EGLImageAttribs attrs;
2061 __DRIimage *dri_image;
2062 unsigned num_fds;
2063 unsigned i;
2064 int fds[3];
2065 int pitches[3];
2066 int offsets[3];
2067 unsigned error;
2068
2069 /**
2070 * The spec says:
2071 *
2072 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2073 * error EGL_BAD_PARAMETER is generated."
2074 */
2075 if (buffer != NULL) {
2076 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2077 return NULL;
2078 }
2079
2080 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2081 if (err != EGL_SUCCESS) {
2082 _eglError(err, "bad attribute");
2083 return NULL;
2084 }
2085
2086 if (!dri2_check_dma_buf_attribs(&attrs))
2087 return NULL;
2088
2089 num_fds = dri2_check_dma_buf_format(&attrs);
2090 if (!num_fds)
2091 return NULL;
2092
2093 for (i = 0; i < num_fds; ++i) {
2094 fds[i] = attrs.DMABufPlaneFds[i].Value;
2095 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2096 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2097 }
2098
2099 dri_image =
2100 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2101 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2102 fds, num_fds, pitches, offsets,
2103 attrs.DMABufYuvColorSpaceHint.Value,
2104 attrs.DMABufSampleRangeHint.Value,
2105 attrs.DMABufChromaHorizontalSiting.Value,
2106 attrs.DMABufChromaVerticalSiting.Value,
2107 &error,
2108 NULL);
2109 dri2_create_image_khr_texture_error(error);
2110
2111 if (!dri_image)
2112 return EGL_NO_IMAGE_KHR;
2113
2114 res = dri2_create_image_from_dri(disp, dri_image);
2115
2116 return res;
2117 }
2118 static _EGLImage *
2119 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2120 const EGLint *attr_list)
2121 {
2122 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2123 struct dri2_egl_image *dri2_img;
2124 _EGLImageAttribs attrs;
2125 unsigned int dri_use, valid_mask;
2126 int format;
2127 EGLint err = EGL_SUCCESS;
2128
2129 (void) drv;
2130
2131 dri2_img = malloc(sizeof *dri2_img);
2132 if (!dri2_img) {
2133 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2134 return EGL_NO_IMAGE_KHR;
2135 }
2136
2137 if (!attr_list) {
2138 err = EGL_BAD_PARAMETER;
2139 goto cleanup_img;
2140 }
2141
2142 if (!_eglInitImage(&dri2_img->base, disp)) {
2143 err = EGL_BAD_PARAMETER;
2144 goto cleanup_img;
2145 }
2146
2147 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2148 if (err != EGL_SUCCESS)
2149 goto cleanup_img;
2150
2151 if (attrs.Width <= 0 || attrs.Height <= 0) {
2152 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2153 attrs.Width, attrs.Height);
2154 goto cleanup_img;
2155 }
2156
2157 switch (attrs.DRMBufferFormatMESA) {
2158 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2159 format = __DRI_IMAGE_FORMAT_ARGB8888;
2160 break;
2161 default:
2162 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2163 attrs.DRMBufferFormatMESA);
2164 goto cleanup_img;
2165 }
2166
2167 valid_mask =
2168 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2169 EGL_DRM_BUFFER_USE_SHARE_MESA |
2170 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2171 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2172 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2173 attrs.DRMBufferUseMESA & ~valid_mask);
2174 goto cleanup_img;
2175 }
2176
2177 dri_use = 0;
2178 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2179 dri_use |= __DRI_IMAGE_USE_SHARE;
2180 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2181 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2182 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2183 dri_use |= __DRI_IMAGE_USE_CURSOR;
2184
2185 dri2_img->dri_image =
2186 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2187 attrs.Width, attrs.Height,
2188 format, dri_use, dri2_img);
2189 if (dri2_img->dri_image == NULL) {
2190 err = EGL_BAD_ALLOC;
2191 goto cleanup_img;
2192 }
2193
2194 return &dri2_img->base;
2195
2196 cleanup_img:
2197 free(dri2_img);
2198 _eglError(err, "dri2_create_drm_image_mesa");
2199
2200 return EGL_NO_IMAGE_KHR;
2201 }
2202
2203 static EGLBoolean
2204 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2205 EGLint *name, EGLint *handle, EGLint *stride)
2206 {
2207 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2208 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2209
2210 (void) drv;
2211
2212 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2213 __DRI_IMAGE_ATTRIB_NAME, name)) {
2214 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2215 return EGL_FALSE;
2216 }
2217
2218 if (handle)
2219 dri2_dpy->image->queryImage(dri2_img->dri_image,
2220 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2221
2222 if (stride)
2223 dri2_dpy->image->queryImage(dri2_img->dri_image,
2224 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2225
2226 return EGL_TRUE;
2227 }
2228
2229 static EGLBoolean
2230 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2231 _EGLImage *img,
2232 EGLint *fourcc, EGLint *nplanes,
2233 EGLuint64KHR *modifiers)
2234 {
2235 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2236 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2237
2238 (void) drv;
2239
2240
2241 if (nplanes)
2242 dri2_dpy->image->queryImage(dri2_img->dri_image,
2243 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2244 if (fourcc)
2245 dri2_dpy->image->queryImage(dri2_img->dri_image,
2246 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2247
2248 if (modifiers)
2249 *modifiers = 0;
2250
2251 return EGL_TRUE;
2252 }
2253
2254 static EGLBoolean
2255 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2256 int *fds, EGLint *strides, EGLint *offsets)
2257 {
2258 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2259 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2260
2261 (void) drv;
2262
2263 /* rework later to provide multiple fds/strides/offsets */
2264 if (fds)
2265 dri2_dpy->image->queryImage(dri2_img->dri_image,
2266 __DRI_IMAGE_ATTRIB_FD, fds);
2267
2268 if (strides)
2269 dri2_dpy->image->queryImage(dri2_img->dri_image,
2270 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2271
2272 if (offsets) {
2273 int img_offset;
2274 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2275 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2276 if (ret)
2277 offsets[0] = img_offset;
2278 else
2279 offsets[0] = 0;
2280 }
2281
2282 return EGL_TRUE;
2283 }
2284
2285 #endif
2286
2287 _EGLImage *
2288 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2289 _EGLContext *ctx, EGLenum target,
2290 EGLClientBuffer buffer, const EGLint *attr_list)
2291 {
2292 (void) drv;
2293
2294 switch (target) {
2295 case EGL_GL_TEXTURE_2D_KHR:
2296 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2297 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2298 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2299 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2300 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2301 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2302 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2303 case EGL_GL_TEXTURE_3D_KHR:
2304 if (disp->Extensions.KHR_gl_texture_3D_image) {
2305 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2306 }
2307 else {
2308 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2309 return EGL_NO_IMAGE_KHR;
2310 }
2311 case EGL_GL_RENDERBUFFER_KHR:
2312 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2313 #ifdef HAVE_LIBDRM
2314 case EGL_DRM_BUFFER_MESA:
2315 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2316 case EGL_LINUX_DMA_BUF_EXT:
2317 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2318 #endif
2319 #ifdef HAVE_WAYLAND_PLATFORM
2320 case EGL_WAYLAND_BUFFER_WL:
2321 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2322 #endif
2323 default:
2324 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2325 return EGL_NO_IMAGE_KHR;
2326 }
2327 }
2328
2329 static EGLBoolean
2330 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2331 {
2332 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2333 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2334
2335 (void) drv;
2336
2337 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2338 free(dri2_img);
2339
2340 return EGL_TRUE;
2341 }
2342
2343 #ifdef HAVE_WAYLAND_PLATFORM
2344
2345 static void
2346 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2347 struct wl_drm_buffer *buffer)
2348 {
2349 _EGLDisplay *disp = user_data;
2350 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2351 __DRIimage *img;
2352 int i, dri_components = 0;
2353
2354 if (fd == -1)
2355 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2356 buffer->width,
2357 buffer->height,
2358 buffer->format,
2359 (int*)&name, 1,
2360 buffer->stride,
2361 buffer->offset,
2362 NULL);
2363 else
2364 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2365 buffer->width,
2366 buffer->height,
2367 buffer->format,
2368 &fd, 1,
2369 buffer->stride,
2370 buffer->offset,
2371 NULL);
2372
2373 if (img == NULL)
2374 return;
2375
2376 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2377
2378 buffer->driver_format = NULL;
2379 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2380 if (wl_drm_components[i].dri_components == dri_components)
2381 buffer->driver_format = &wl_drm_components[i];
2382
2383 if (buffer->driver_format == NULL)
2384 dri2_dpy->image->destroyImage(img);
2385 else
2386 buffer->driver_buffer = img;
2387 }
2388
2389 static void
2390 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2391 {
2392 _EGLDisplay *disp = user_data;
2393 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2394
2395 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2396 }
2397
2398 static struct wayland_drm_callbacks wl_drm_callbacks = {
2399 .authenticate = NULL,
2400 .reference_buffer = dri2_wl_reference_buffer,
2401 .release_buffer = dri2_wl_release_buffer
2402 };
2403
2404 static EGLBoolean
2405 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2406 struct wl_display *wl_dpy)
2407 {
2408 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2409 int flags = 0;
2410 uint64_t cap;
2411
2412 (void) drv;
2413
2414 if (dri2_dpy->wl_server_drm)
2415 return EGL_FALSE;
2416
2417 wl_drm_callbacks.authenticate =
2418 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2419
2420 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2421 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2422 dri2_dpy->image->base.version >= 7 &&
2423 dri2_dpy->image->createImageFromFds != NULL)
2424 flags |= WAYLAND_DRM_PRIME;
2425
2426 dri2_dpy->wl_server_drm =
2427 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2428 &wl_drm_callbacks, disp, flags);
2429
2430 if (!dri2_dpy->wl_server_drm)
2431 return EGL_FALSE;
2432
2433 #ifdef HAVE_DRM_PLATFORM
2434 /* We have to share the wl_drm instance with gbm, so gbm can convert
2435 * wl_buffers to gbm bos. */
2436 if (dri2_dpy->gbm_dri)
2437 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2438 #endif
2439
2440 return EGL_TRUE;
2441 }
2442
2443 static EGLBoolean
2444 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2445 struct wl_display *wl_dpy)
2446 {
2447 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2448
2449 (void) drv;
2450
2451 if (!dri2_dpy->wl_server_drm)
2452 return EGL_FALSE;
2453
2454 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2455 dri2_dpy->wl_server_drm = NULL;
2456
2457 return EGL_TRUE;
2458 }
2459
2460 static EGLBoolean
2461 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2462 struct wl_resource *buffer_resource,
2463 EGLint attribute, EGLint *value)
2464 {
2465 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2466 struct wl_drm_buffer *buffer;
2467 const struct wl_drm_components_descriptor *format;
2468
2469 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2470 if (!buffer)
2471 return EGL_FALSE;
2472
2473 format = buffer->driver_format;
2474 switch (attribute) {
2475 case EGL_TEXTURE_FORMAT:
2476 *value = format->components;
2477 return EGL_TRUE;
2478 case EGL_WIDTH:
2479 *value = buffer->width;
2480 return EGL_TRUE;
2481 case EGL_HEIGHT:
2482 *value = buffer->height;
2483 return EGL_TRUE;
2484 }
2485
2486 return EGL_FALSE;
2487 }
2488 #endif
2489
2490 static void
2491 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2492 {
2493 p_atomic_inc(&sync->refcount);
2494 }
2495
2496 static void
2497 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2498 struct dri2_egl_sync *dri2_sync)
2499 {
2500 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2501 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2502 cnd_destroy(&dri2_sync->cond);
2503
2504 if (dri2_sync->fence)
2505 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2506
2507 free(dri2_sync);
2508 }
2509 }
2510
2511 static _EGLSync *
2512 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2513 EGLenum type, const EGLAttrib *attrib_list)
2514 {
2515 _EGLContext *ctx = _eglGetCurrentContext();
2516 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2517 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2518 struct dri2_egl_sync *dri2_sync;
2519 EGLint ret;
2520 pthread_condattr_t attr;
2521
2522 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2523 if (!dri2_sync) {
2524 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2525 return NULL;
2526 }
2527
2528 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2529 free(dri2_sync);
2530 return NULL;
2531 }
2532
2533 switch (type) {
2534 case EGL_SYNC_FENCE_KHR:
2535 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2536 if (!dri2_sync->fence) {
2537 /* Why did it fail? DRI doesn't return an error code, so we emit
2538 * a generic EGL error that doesn't communicate user error.
2539 */
2540 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2541 free(dri2_sync);
2542 return NULL;
2543 }
2544 break;
2545
2546 case EGL_SYNC_CL_EVENT_KHR:
2547 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2548 dri2_dpy->dri_screen,
2549 dri2_sync->base.CLEvent);
2550 /* this can only happen if the cl_event passed in is invalid. */
2551 if (!dri2_sync->fence) {
2552 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2553 free(dri2_sync);
2554 return NULL;
2555 }
2556
2557 /* the initial status must be "signaled" if the cl_event is signaled */
2558 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2559 dri2_sync->fence, 0, 0))
2560 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2561 break;
2562
2563 case EGL_SYNC_REUSABLE_KHR:
2564 /* intialize attr */
2565 ret = pthread_condattr_init(&attr);
2566
2567 if (ret) {
2568 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2569 free(dri2_sync);
2570 return NULL;
2571 }
2572
2573 /* change clock attribute to CLOCK_MONOTONIC */
2574 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2575
2576 if (ret) {
2577 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2578 free(dri2_sync);
2579 return NULL;
2580 }
2581
2582 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2583
2584 if (ret) {
2585 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2586 free(dri2_sync);
2587 return NULL;
2588 }
2589
2590 /* initial status of reusable sync must be "unsignaled" */
2591 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2592 break;
2593 }
2594
2595 p_atomic_set(&dri2_sync->refcount, 1);
2596 return &dri2_sync->base;
2597 }
2598
2599 static EGLBoolean
2600 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2601 {
2602 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2603 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2604 EGLint ret = EGL_TRUE;
2605 EGLint err;
2606
2607 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2608 * then unlock all threads possibly blocked by the reusable sync before
2609 * destroying it.
2610 */
2611 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2612 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2613 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2614 /* unblock all threads currently blocked by sync */
2615 err = cnd_broadcast(&dri2_sync->cond);
2616
2617 if (err) {
2618 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2619 ret = EGL_FALSE;
2620 }
2621 }
2622 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2623
2624 return ret;
2625 }
2626
2627 static EGLint
2628 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2629 EGLint flags, EGLTime timeout)
2630 {
2631 _EGLContext *ctx = _eglGetCurrentContext();
2632 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2633 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2634 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2635 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2636 unsigned wait_flags = 0;
2637
2638 /* timespecs for cnd_timedwait */
2639 struct timespec current;
2640 xtime expire;
2641
2642 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2643
2644 /* The EGL_KHR_fence_sync spec states:
2645 *
2646 * "If no context is current for the bound API,
2647 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2648 */
2649 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2650 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2651
2652 /* the sync object should take a reference while waiting */
2653 dri2_egl_ref_sync(dri2_sync);
2654
2655 switch (sync->Type) {
2656 case EGL_SYNC_FENCE_KHR:
2657 case EGL_SYNC_CL_EVENT_KHR:
2658 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2659 dri2_sync->fence, wait_flags,
2660 timeout))
2661 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2662 else
2663 ret = EGL_TIMEOUT_EXPIRED_KHR;
2664 break;
2665
2666 case EGL_SYNC_REUSABLE_KHR:
2667 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2668 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2669 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2670 dri2_drv->glFlush();
2671 }
2672
2673 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2674 if (timeout == EGL_FOREVER_KHR) {
2675 mtx_lock(&dri2_sync->mutex);
2676 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2677 mtx_unlock(&dri2_sync->mutex);
2678 } else {
2679 /* if reusable sync has not been yet signaled */
2680 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2681 clock_gettime(CLOCK_MONOTONIC, &current);
2682
2683 /* calculating when to expire */
2684 expire.nsec = timeout % 1000000000L;
2685 expire.sec = timeout / 1000000000L;
2686
2687 expire.nsec += current.tv_nsec;
2688 expire.sec += current.tv_sec;
2689
2690 /* expire.nsec now is a number between 0 and 1999999998 */
2691 if (expire.nsec > 999999999L) {
2692 expire.sec++;
2693 expire.nsec -= 1000000000L;
2694 }
2695
2696 mtx_lock(&dri2_sync->mutex);
2697 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2698 mtx_unlock(&dri2_sync->mutex);
2699
2700 if (ret == thrd_busy) {
2701 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2702 ret = EGL_TIMEOUT_EXPIRED_KHR;
2703 } else {
2704 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2705 ret = EGL_FALSE;
2706 }
2707 }
2708 }
2709 }
2710 break;
2711 }
2712 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2713
2714 return ret;
2715 }
2716
2717 static EGLBoolean
2718 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2719 EGLenum mode)
2720 {
2721 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2722 EGLint ret;
2723
2724 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2725 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2726 return EGL_FALSE;
2727 }
2728
2729 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2730 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2731 return EGL_FALSE;
2732 }
2733
2734 dri2_sync->base.SyncStatus = mode;
2735
2736 if (mode == EGL_SIGNALED_KHR) {
2737 ret = cnd_broadcast(&dri2_sync->cond);
2738
2739 /* fail to broadcast */
2740 if (ret) {
2741 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2742 return EGL_FALSE;
2743 }
2744 }
2745
2746 return EGL_TRUE;
2747 }
2748
2749 static EGLint
2750 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2751 {
2752 _EGLContext *ctx = _eglGetCurrentContext();
2753 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2754 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2755 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2756
2757 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2758 dri2_sync->fence, 0);
2759 return EGL_TRUE;
2760 }
2761
2762 static int
2763 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2764 struct mesa_glinterop_device_info *out)
2765 {
2766 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2767 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2768
2769 if (!dri2_dpy->interop)
2770 return MESA_GLINTEROP_UNSUPPORTED;
2771
2772 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2773 }
2774
2775 static int
2776 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2777 struct mesa_glinterop_export_in *in,
2778 struct mesa_glinterop_export_out *out)
2779 {
2780 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2781 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2782
2783 if (!dri2_dpy->interop)
2784 return MESA_GLINTEROP_UNSUPPORTED;
2785
2786 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2787 }
2788
2789 static void
2790 dri2_unload(_EGLDriver *drv)
2791 {
2792 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2793
2794 dlclose(dri2_drv->handle);
2795 free(dri2_drv);
2796 }
2797
2798 static EGLBoolean
2799 dri2_load(_EGLDriver *drv)
2800 {
2801 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2802 #ifdef HAVE_ANDROID_PLATFORM
2803 const char *libname = "libglapi.so";
2804 #elif defined(__APPLE__)
2805 const char *libname = "libglapi.0.dylib";
2806 #elif defined(__CYGWIN__)
2807 const char *libname = "cygglapi-0.dll";
2808 #elif defined(__linux__)
2809 const char *libname = "libglapi.so.0";
2810 #else
2811 #error Unknown glapi provider for this platform
2812 #endif
2813 void *handle;
2814
2815 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2816 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2817 if (!handle) {
2818 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
2819 goto no_handle;
2820 }
2821
2822 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2823 dlsym(handle, "_glapi_get_proc_address");
2824
2825 /* if glapi is not available, loading DRI drivers will fail */
2826 if (!dri2_drv->get_proc_address) {
2827 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2828 goto no_symbol;
2829 }
2830
2831 dri2_drv->glFlush = (void (*)(void))
2832 dri2_drv->get_proc_address("glFlush");
2833
2834 /* if glFlush is not available things are horribly broken */
2835 if (!dri2_drv->glFlush) {
2836 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
2837 goto no_symbol;
2838 }
2839
2840 dri2_drv->handle = handle;
2841 return EGL_TRUE;
2842
2843 no_symbol:
2844 dlclose(handle);
2845 no_handle:
2846 return EGL_FALSE;
2847 }
2848
2849 /**
2850 * This is the main entrypoint into the driver, called by libEGL.
2851 * Create a new _EGLDriver object and init its dispatch table.
2852 */
2853 _EGLDriver *
2854 _eglBuiltInDriverDRI2(const char *args)
2855 {
2856 struct dri2_egl_driver *dri2_drv;
2857
2858 (void) args;
2859
2860 dri2_drv = calloc(1, sizeof *dri2_drv);
2861 if (!dri2_drv)
2862 return NULL;
2863
2864 if (!dri2_load(&dri2_drv->base)) {
2865 free(dri2_drv);
2866 return NULL;
2867 }
2868
2869 _eglInitDriverFallbacks(&dri2_drv->base);
2870 dri2_drv->base.API.Initialize = dri2_initialize;
2871 dri2_drv->base.API.Terminate = dri2_terminate;
2872 dri2_drv->base.API.CreateContext = dri2_create_context;
2873 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2874 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2875 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2876 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2877 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2878 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2879 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2880 dri2_drv->base.API.WaitClient = dri2_wait_client;
2881 dri2_drv->base.API.WaitNative = dri2_wait_native;
2882 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2883 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2884 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2885 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2886 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2887 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2888 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2889 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2890 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2891 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2892 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2893 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2894 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2895 #ifdef HAVE_LIBDRM
2896 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2897 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2898 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2899 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2900 #endif
2901 #ifdef HAVE_WAYLAND_PLATFORM
2902 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2903 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2904 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2905 #endif
2906 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2907 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2908 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2909 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2910 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2911 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2912 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2913 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2914
2915 dri2_drv->base.Name = "DRI2";
2916 dri2_drv->base.Unload = dri2_unload;
2917
2918 return &dri2_drv->base;
2919 }