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egl: implement __DRIbackgroundCallableExtension.isThreadSafe
[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 #ifdef HAVE_X11_PLATFORM
59 #include "X11/Xlibint.h"
60 #endif
61
62 #include "egl_dri2.h"
63 #include "loader/loader.h"
64 #include "util/u_atomic.h"
65
66 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
67 * some of the definitions here so that building Mesa won't bleeding-edge
68 * kernel headers.
69 */
70 #ifndef DRM_FORMAT_R8
71 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
72 #endif
73
74 #ifndef DRM_FORMAT_RG88
75 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
76 #endif
77
78 #ifndef DRM_FORMAT_GR88
79 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
80 #endif
81
82 #ifndef DRM_FORMAT_R16
83 #define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R 16 little endian */
84 #endif
85
86 #ifndef DRM_FORMAT_GR1616
87 #define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] R:G 16:16 little endian */
88 #endif
89
90 static void
91 dri_set_background_context(void *loaderPrivate)
92 {
93 _EGLContext *ctx = _eglGetCurrentContext();
94 _EGLThreadInfo *t = _eglGetCurrentThread();
95
96 _eglBindContextToThread(ctx, t);
97 }
98
99 static GLboolean
100 dri_is_thread_safe(void *loaderPrivate)
101 {
102 struct dri2_egl_surface *dri2_surf = loaderPrivate;
103 _EGLDisplay *display = dri2_surf->base.Resource.Display;
104
105 #ifdef HAVE_X11_PLATFORM
106 Display *xdpy = (Display*)display->PlatformDisplay;
107
108 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
109 * platform
110 *
111 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
112 * It wll be NULL if XInitThreads wasn't called.
113 */
114 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
115 return false;
116 #endif
117
118 #ifdef HAVE_WAYLAND_PLATFORM
119 if (display->Platform == _EGL_PLATFORM_WAYLAND)
120 return true;
121 #endif
122
123 return true;
124 }
125
126 const __DRIbackgroundCallableExtension background_callable_extension = {
127 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
128
129 .setBackgroundContext = dri_set_background_context,
130 .isThreadSafe = dri_is_thread_safe,
131 };
132
133 const __DRIuseInvalidateExtension use_invalidate = {
134 .base = { __DRI_USE_INVALIDATE, 1 }
135 };
136
137 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
138 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
139 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
140 [__DRI_ATTRIB_RED_SIZE] = EGL_RED_SIZE,
141 [__DRI_ATTRIB_GREEN_SIZE] = EGL_GREEN_SIZE,
142 [__DRI_ATTRIB_BLUE_SIZE] = EGL_BLUE_SIZE,
143 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
144 [__DRI_ATTRIB_ALPHA_SIZE] = EGL_ALPHA_SIZE,
145 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
146 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
147 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
148 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
149 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
150 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
151 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
152 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
153 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
154 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
155 };
156
157 const __DRIconfig *
158 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
159 EGLenum colorspace)
160 {
161 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
162
163 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
164 conf->dri_single_config[srgb];
165 }
166
167 static EGLBoolean
168 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
169 {
170 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
171 return EGL_FALSE;
172
173 if (!_eglMatchConfig(conf, criteria))
174 return EGL_FALSE;
175
176 return EGL_TRUE;
177 }
178
179 struct dri2_egl_config *
180 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
181 EGLint surface_type, const EGLint *attr_list,
182 const unsigned int *rgba_masks)
183 {
184 struct dri2_egl_config *conf;
185 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
186 _EGLConfig base;
187 unsigned int attrib, value, double_buffer;
188 bool srgb = false;
189 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
190 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
191 _EGLConfig *matching_config;
192 EGLint num_configs = 0;
193 EGLint config_id;
194 int i;
195
196 _eglInitConfig(&base, disp, id);
197
198 i = 0;
199 double_buffer = 0;
200 bind_to_texture_rgb = 0;
201 bind_to_texture_rgba = 0;
202
203 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
204 switch (attrib) {
205 case __DRI_ATTRIB_RENDER_TYPE:
206 if (value & __DRI_ATTRIB_RGBA_BIT)
207 value = EGL_RGB_BUFFER;
208 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
209 value = EGL_LUMINANCE_BUFFER;
210 else
211 return NULL;
212 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
213 break;
214
215 case __DRI_ATTRIB_CONFIG_CAVEAT:
216 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
217 value = EGL_NON_CONFORMANT_CONFIG;
218 else if (value & __DRI_ATTRIB_SLOW_BIT)
219 value = EGL_SLOW_CONFIG;
220 else
221 value = EGL_NONE;
222 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
223 break;
224
225 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
226 bind_to_texture_rgb = value;
227 break;
228
229 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
230 bind_to_texture_rgba = value;
231 break;
232
233 case __DRI_ATTRIB_DOUBLE_BUFFER:
234 double_buffer = value;
235 break;
236
237 case __DRI_ATTRIB_RED_MASK:
238 dri_masks[0] = value;
239 break;
240
241 case __DRI_ATTRIB_GREEN_MASK:
242 dri_masks[1] = value;
243 break;
244
245 case __DRI_ATTRIB_BLUE_MASK:
246 dri_masks[2] = value;
247 break;
248
249 case __DRI_ATTRIB_ALPHA_MASK:
250 dri_masks[3] = value;
251 break;
252
253 case __DRI_ATTRIB_ACCUM_RED_SIZE:
254 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
255 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
256 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
257 /* Don't expose visuals with the accumulation buffer. */
258 if (value > 0)
259 return NULL;
260 break;
261
262 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
263 srgb = value != 0;
264 if (!disp->Extensions.KHR_gl_colorspace && srgb)
265 return NULL;
266 break;
267
268 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
269 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
270 _EGL_MAX_PBUFFER_WIDTH);
271 break;
272 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
273 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
274 _EGL_MAX_PBUFFER_HEIGHT);
275 break;
276
277 default:
278 key = dri2_to_egl_attribute_map[attrib];
279 if (key != 0)
280 _eglSetConfigKey(&base, key, value);
281 break;
282 }
283 }
284
285 if (attr_list)
286 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
287 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
288
289 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
290 return NULL;
291
292 base.NativeRenderable = EGL_TRUE;
293
294 base.SurfaceType = surface_type;
295 if (surface_type & (EGL_PBUFFER_BIT |
296 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
297 base.BindToTextureRGB = bind_to_texture_rgb;
298 if (base.AlphaSize > 0)
299 base.BindToTextureRGBA = bind_to_texture_rgba;
300 }
301
302 base.RenderableType = disp->ClientAPIs;
303 base.Conformant = disp->ClientAPIs;
304
305 base.MinSwapInterval = dri2_dpy->min_swap_interval;
306 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
307
308 if (!_eglValidateConfig(&base, EGL_FALSE)) {
309 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
310 return NULL;
311 }
312
313 config_id = base.ConfigID;
314 base.ConfigID = EGL_DONT_CARE;
315 base.SurfaceType = EGL_DONT_CARE;
316 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
317 (_EGLArrayForEach) dri2_match_config, &base);
318
319 if (num_configs == 1) {
320 conf = (struct dri2_egl_config *) matching_config;
321
322 if (double_buffer && !conf->dri_double_config[srgb])
323 conf->dri_double_config[srgb] = dri_config;
324 else if (!double_buffer && !conf->dri_single_config[srgb])
325 conf->dri_single_config[srgb] = dri_config;
326 else
327 /* a similar config type is already added (unlikely) => discard */
328 return NULL;
329 }
330 else if (num_configs == 0) {
331 conf = calloc(1, sizeof *conf);
332 if (conf == NULL)
333 return NULL;
334
335 if (double_buffer)
336 conf->dri_double_config[srgb] = dri_config;
337 else
338 conf->dri_single_config[srgb] = dri_config;
339
340 memcpy(&conf->base, &base, sizeof base);
341 conf->base.SurfaceType = 0;
342 conf->base.ConfigID = config_id;
343
344 _eglLinkConfig(&conf->base);
345 }
346 else {
347 assert(0);
348 return NULL;
349 }
350
351 if (double_buffer) {
352 surface_type &= ~EGL_PIXMAP_BIT;
353 }
354
355 /* No support for pbuffer + MSAA for now.
356 *
357 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
358 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
359 */
360 if (base.Samples) {
361 surface_type &= ~EGL_PBUFFER_BIT;
362 }
363
364 conf->base.SurfaceType |= surface_type;
365
366 return conf;
367 }
368
369 __DRIimage *
370 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
371 {
372 _EGLDisplay *disp = data;
373 struct dri2_egl_image *dri2_img;
374 _EGLImage *img;
375
376 (void) screen;
377
378 img = _eglLookupImage(image, disp);
379 if (img == NULL) {
380 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
381 return NULL;
382 }
383
384 dri2_img = dri2_egl_image(image);
385
386 return dri2_img->dri_image;
387 }
388
389 const __DRIimageLookupExtension image_lookup_extension = {
390 .base = { __DRI_IMAGE_LOOKUP, 1 },
391
392 .lookupEGLImage = dri2_lookup_egl_image
393 };
394
395 struct dri2_extension_match {
396 const char *name;
397 int version;
398 int offset;
399 };
400
401 static const struct dri2_extension_match dri3_driver_extensions[] = {
402 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
403 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
404 { NULL, 0, 0 }
405 };
406
407 static const struct dri2_extension_match dri2_driver_extensions[] = {
408 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
409 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
410 { NULL, 0, 0 }
411 };
412
413 static const struct dri2_extension_match dri2_core_extensions[] = {
414 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
415 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
416 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
417 { NULL, 0, 0 }
418 };
419
420 static const struct dri2_extension_match swrast_driver_extensions[] = {
421 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
422 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
423 { NULL, 0, 0 }
424 };
425
426 static const struct dri2_extension_match swrast_core_extensions[] = {
427 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
428 { NULL, 0, 0 }
429 };
430
431 static const struct dri2_extension_match optional_core_extensions[] = {
432 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
433 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
434 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
435 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
436 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
437 { NULL, 0, 0 }
438 };
439
440 static EGLBoolean
441 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
442 const struct dri2_extension_match *matches,
443 const __DRIextension **extensions,
444 bool optional)
445 {
446 int i, j, ret = EGL_TRUE;
447 void *field;
448
449 for (i = 0; extensions[i]; i++) {
450 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
451 for (j = 0; matches[j].name; j++) {
452 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
453 extensions[i]->version >= matches[j].version) {
454 field = ((char *) dri2_dpy + matches[j].offset);
455 *(const __DRIextension **) field = extensions[i];
456 _eglLog(_EGL_INFO, "found extension %s version %d",
457 extensions[i]->name, extensions[i]->version);
458 break;
459 }
460 }
461 }
462
463 for (j = 0; matches[j].name; j++) {
464 field = ((char *) dri2_dpy + matches[j].offset);
465 if (*(const __DRIextension **) field == NULL) {
466 if (optional) {
467 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
468 matches[j].name, matches[j].version);
469 } else {
470 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
471 matches[j].name, matches[j].version);
472 ret = EGL_FALSE;
473 }
474 }
475 }
476
477 return ret;
478 }
479
480 static const __DRIextension **
481 dri2_open_driver(_EGLDisplay *disp)
482 {
483 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
484 const __DRIextension **extensions = NULL;
485 char path[PATH_MAX], *search_paths, *p, *next, *end;
486 char *get_extensions_name;
487 const __DRIextension **(*get_extensions)(void);
488
489 search_paths = NULL;
490 if (geteuid() == getuid()) {
491 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
492 search_paths = getenv("LIBGL_DRIVERS_PATH");
493 }
494 if (search_paths == NULL)
495 search_paths = DEFAULT_DRIVER_DIR;
496
497 dri2_dpy->driver = NULL;
498 end = search_paths + strlen(search_paths);
499 for (p = search_paths; p < end; p = next + 1) {
500 int len;
501 next = strchr(p, ':');
502 if (next == NULL)
503 next = end;
504
505 len = next - p;
506 #if GLX_USE_TLS
507 snprintf(path, sizeof path,
508 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
509 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
510 #endif
511 if (dri2_dpy->driver == NULL) {
512 snprintf(path, sizeof path,
513 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
514 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
515 if (dri2_dpy->driver == NULL)
516 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
517 }
518 /* not need continue to loop all paths once the driver is found */
519 if (dri2_dpy->driver != NULL)
520 break;
521
522 #ifdef ANDROID
523 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
524 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
525 if (dri2_dpy->driver == NULL)
526 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
527 else
528 break;
529 #endif
530 }
531
532 if (dri2_dpy->driver == NULL) {
533 _eglLog(_EGL_WARNING,
534 "DRI2: failed to open %s (search paths %s)",
535 dri2_dpy->driver_name, search_paths);
536 return NULL;
537 }
538
539 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
540
541 get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
542 if (get_extensions_name) {
543 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
544 if (get_extensions) {
545 extensions = get_extensions();
546 } else {
547 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
548 get_extensions_name, dlerror());
549 }
550 free(get_extensions_name);
551 }
552
553 if (!extensions)
554 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
555 if (extensions == NULL) {
556 _eglLog(_EGL_WARNING,
557 "DRI2: driver exports no extensions (%s)", dlerror());
558 dlclose(dri2_dpy->driver);
559 }
560
561 return extensions;
562 }
563
564 EGLBoolean
565 dri2_load_driver_dri3(_EGLDisplay *disp)
566 {
567 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
568 const __DRIextension **extensions;
569
570 extensions = dri2_open_driver(disp);
571 if (!extensions)
572 return EGL_FALSE;
573
574 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
575 dlclose(dri2_dpy->driver);
576 return EGL_FALSE;
577 }
578 dri2_dpy->driver_extensions = extensions;
579
580 return EGL_TRUE;
581 }
582
583 EGLBoolean
584 dri2_load_driver(_EGLDisplay *disp)
585 {
586 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
587 const __DRIextension **extensions;
588
589 extensions = dri2_open_driver(disp);
590 if (!extensions)
591 return EGL_FALSE;
592
593 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
594 dlclose(dri2_dpy->driver);
595 return EGL_FALSE;
596 }
597 dri2_dpy->driver_extensions = extensions;
598
599 return EGL_TRUE;
600 }
601
602 EGLBoolean
603 dri2_load_driver_swrast(_EGLDisplay *disp)
604 {
605 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
606 const __DRIextension **extensions;
607
608 extensions = dri2_open_driver(disp);
609 if (!extensions)
610 return EGL_FALSE;
611
612 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
613 dlclose(dri2_dpy->driver);
614 return EGL_FALSE;
615 }
616 dri2_dpy->driver_extensions = extensions;
617
618 return EGL_TRUE;
619 }
620
621 static unsigned
622 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
623 {
624 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
625 unsigned int value = 0;
626
627 if (!rendererQuery ||
628 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
629 return 0;
630
631 return value;
632 }
633
634 void
635 dri2_setup_screen(_EGLDisplay *disp)
636 {
637 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
638 unsigned int api_mask;
639
640 if (dri2_dpy->image_driver) {
641 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
642 } else if (dri2_dpy->dri2) {
643 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
644 } else {
645 assert(dri2_dpy->swrast);
646 api_mask = 1 << __DRI_API_OPENGL |
647 1 << __DRI_API_GLES |
648 1 << __DRI_API_GLES2 |
649 1 << __DRI_API_GLES3;
650 }
651
652 disp->ClientAPIs = 0;
653 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
654 disp->ClientAPIs |= EGL_OPENGL_BIT;
655 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
656 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
657 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
658 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
659 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
660 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
661
662 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
663 disp->Extensions.KHR_no_config_context = EGL_TRUE;
664 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
665
666 if (dri2_renderer_query_integer(dri2_dpy,
667 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
668 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
669
670 if (dri2_dpy->image_driver ||
671 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
672 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
673 disp->Extensions.KHR_create_context = EGL_TRUE;
674
675 if (dri2_dpy->robustness)
676 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
677 }
678
679 if (dri2_dpy->fence) {
680 disp->Extensions.KHR_fence_sync = EGL_TRUE;
681 disp->Extensions.KHR_wait_sync = EGL_TRUE;
682 if (dri2_dpy->fence->get_fence_from_cl_event)
683 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
684 if (dri2_dpy->fence->base.version >= 2) {
685 unsigned capabilities =
686 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
687 disp->Extensions.ANDROID_native_fence_sync =
688 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
689 }
690 }
691
692 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
693
694 if (dri2_dpy->image) {
695 if (dri2_dpy->image->base.version >= 10 &&
696 dri2_dpy->image->getCapabilities != NULL) {
697 int capabilities;
698
699 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
700 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
701
702 if (dri2_dpy->image->base.version >= 11)
703 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
704 } else {
705 disp->Extensions.MESA_drm_image = EGL_TRUE;
706 if (dri2_dpy->image->base.version >= 11)
707 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
708 }
709
710 disp->Extensions.KHR_image_base = EGL_TRUE;
711 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
712 if (dri2_dpy->image->base.version >= 5 &&
713 dri2_dpy->image->createImageFromTexture) {
714 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
715 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
716 }
717 if (dri2_renderer_query_integer(dri2_dpy,
718 __DRI2_RENDERER_HAS_TEXTURE_3D))
719 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
720 #ifdef HAVE_LIBDRM
721 if (dri2_dpy->image->base.version >= 8 &&
722 dri2_dpy->image->createImageFromDmaBufs) {
723 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
724 }
725 #endif
726 }
727 }
728
729 /* All platforms but DRM call this function to create the screen and populate
730 * the driver_configs. DRM inherits that information from its display - GBM.
731 */
732 EGLBoolean
733 dri2_create_screen(_EGLDisplay *disp)
734 {
735 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
736
737 if (dri2_dpy->image_driver) {
738 dri2_dpy->dri_screen =
739 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
740 dri2_dpy->loader_extensions,
741 dri2_dpy->driver_extensions,
742 &dri2_dpy->driver_configs,
743 disp);
744 } else if (dri2_dpy->dri2) {
745 if (dri2_dpy->dri2->base.version >= 4) {
746 dri2_dpy->dri_screen =
747 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
748 dri2_dpy->loader_extensions,
749 dri2_dpy->driver_extensions,
750 &dri2_dpy->driver_configs, disp);
751 } else {
752 dri2_dpy->dri_screen =
753 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
754 dri2_dpy->loader_extensions,
755 &dri2_dpy->driver_configs, disp);
756 }
757 } else {
758 assert(dri2_dpy->swrast);
759 if (dri2_dpy->swrast->base.version >= 4) {
760 dri2_dpy->dri_screen =
761 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
762 dri2_dpy->driver_extensions,
763 &dri2_dpy->driver_configs, disp);
764 } else {
765 dri2_dpy->dri_screen =
766 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
767 &dri2_dpy->driver_configs, disp);
768 }
769 }
770
771 if (dri2_dpy->dri_screen == NULL) {
772 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
773 return EGL_FALSE;
774 }
775
776 dri2_dpy->own_dri_screen = 1;
777 return EGL_TRUE;
778 }
779
780 EGLBoolean
781 dri2_setup_extensions(_EGLDisplay *disp)
782 {
783 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
784 const struct dri2_extension_match *mandatory_core_extensions;
785 const __DRIextension **extensions;
786
787 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
788
789 if (dri2_dpy->image_driver || dri2_dpy->dri2)
790 mandatory_core_extensions = dri2_core_extensions;
791 else
792 mandatory_core_extensions = swrast_core_extensions;
793
794 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
795 return EGL_FALSE;
796
797 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
798 return EGL_TRUE;
799 }
800
801 /**
802 * Called via eglInitialize(), GLX_drv->API.Initialize().
803 *
804 * This must be guaranteed to be called exactly once, even if eglInitialize is
805 * called many times (without a eglTerminate in between).
806 */
807 static EGLBoolean
808 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
809 {
810 EGLBoolean ret = EGL_FALSE;
811 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
812
813 /* In the case where the application calls eglMakeCurrent(context1),
814 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
815 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
816 * initialized, as we need it to be able to free context1 correctly.
817 *
818 * It would probably be safest to forcibly release the display with
819 * dri2_display_release, to make sure the display is reinitialized correctly.
820 * However, the EGL spec states that we need to keep a reference to the
821 * current context (so we cannot call dri2_make_current(NULL)), and therefore
822 * we would leak context1 as we would be missing the old display connection
823 * to free it up correctly.
824 */
825 if (dri2_dpy) {
826 dri2_dpy->ref_count++;
827 return EGL_TRUE;
828 }
829
830 /* not until swrast_dri is supported */
831 if (disp->Options.UseFallback)
832 return EGL_FALSE;
833
834 /* Nothing to initialize for a test only display */
835 if (disp->Options.TestOnly)
836 return EGL_TRUE;
837
838 switch (disp->Platform) {
839 #ifdef HAVE_SURFACELESS_PLATFORM
840 case _EGL_PLATFORM_SURFACELESS:
841 ret = dri2_initialize_surfaceless(drv, disp);
842 break;
843 #endif
844 #ifdef HAVE_X11_PLATFORM
845 case _EGL_PLATFORM_X11:
846 ret = dri2_initialize_x11(drv, disp);
847 break;
848 #endif
849 #ifdef HAVE_DRM_PLATFORM
850 case _EGL_PLATFORM_DRM:
851 ret = dri2_initialize_drm(drv, disp);
852 break;
853 #endif
854 #ifdef HAVE_WAYLAND_PLATFORM
855 case _EGL_PLATFORM_WAYLAND:
856 ret = dri2_initialize_wayland(drv, disp);
857 break;
858 #endif
859 #ifdef HAVE_ANDROID_PLATFORM
860 case _EGL_PLATFORM_ANDROID:
861 ret = dri2_initialize_android(drv, disp);
862 break;
863 #endif
864 default:
865 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
866 return EGL_FALSE;
867 }
868
869 if (ret) {
870 dri2_dpy = dri2_egl_display(disp);
871
872 if (!dri2_dpy) {
873 return EGL_FALSE;
874 }
875
876 dri2_dpy->ref_count++;
877 }
878
879 return ret;
880 }
881
882 /**
883 * Decrement display reference count, and free up display if necessary.
884 */
885 static void
886 dri2_display_release(_EGLDisplay *disp)
887 {
888 struct dri2_egl_display *dri2_dpy;
889
890 if (!disp)
891 return;
892
893 dri2_dpy = dri2_egl_display(disp);
894
895 assert(dri2_dpy->ref_count > 0);
896 dri2_dpy->ref_count--;
897
898 if (dri2_dpy->ref_count > 0)
899 return;
900
901 _eglCleanupDisplay(disp);
902 dri2_display_destroy(disp);
903 }
904
905 void
906 dri2_display_destroy(_EGLDisplay *disp)
907 {
908 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
909 unsigned i;
910
911 if (dri2_dpy->own_dri_screen)
912 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
913 if (dri2_dpy->fd >= 0)
914 close(dri2_dpy->fd);
915 if (dri2_dpy->driver)
916 dlclose(dri2_dpy->driver);
917 free(dri2_dpy->driver_name);
918
919 #ifdef HAVE_WAYLAND_PLATFORM
920 free(dri2_dpy->device_name);
921 #endif
922
923 switch (disp->Platform) {
924 #ifdef HAVE_X11_PLATFORM
925 case _EGL_PLATFORM_X11:
926 if (dri2_dpy->own_device) {
927 xcb_disconnect(dri2_dpy->conn);
928 }
929 break;
930 #endif
931 #ifdef HAVE_DRM_PLATFORM
932 case _EGL_PLATFORM_DRM:
933 if (dri2_dpy->own_device) {
934 gbm_device_destroy(&dri2_dpy->gbm_dri->base);
935 }
936 break;
937 #endif
938 #ifdef HAVE_WAYLAND_PLATFORM
939 case _EGL_PLATFORM_WAYLAND:
940 if (dri2_dpy->wl_drm)
941 wl_drm_destroy(dri2_dpy->wl_drm);
942 if (dri2_dpy->wl_shm)
943 wl_shm_destroy(dri2_dpy->wl_shm);
944 wl_registry_destroy(dri2_dpy->wl_registry);
945 wl_event_queue_destroy(dri2_dpy->wl_queue);
946 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
947 if (dri2_dpy->own_device) {
948 wl_display_disconnect(dri2_dpy->wl_dpy);
949 }
950 break;
951 #endif
952 default:
953 break;
954 }
955
956 /* The drm platform does not create the screen/driver_configs but reuses
957 * the ones from the gbm device. As such the gbm itself is responsible
958 * for the cleanup.
959 */
960 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
961 for (i = 0; dri2_dpy->driver_configs[i]; i++)
962 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
963 free(dri2_dpy->driver_configs);
964 }
965 free(dri2_dpy);
966 disp->DriverData = NULL;
967 }
968
969 /**
970 * Called via eglTerminate(), drv->API.Terminate().
971 *
972 * This must be guaranteed to be called exactly once, even if eglTerminate is
973 * called many times (without a eglInitialize in between).
974 */
975 static EGLBoolean
976 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
977 {
978 /* Release all non-current Context/Surfaces. */
979 _eglReleaseDisplayResources(drv, disp);
980
981 dri2_display_release(disp);
982
983 return EGL_TRUE;
984 }
985
986 /**
987 * Set the error code after a call to
988 * dri2_egl_display::dri2::createContextAttribs.
989 */
990 static void
991 dri2_create_context_attribs_error(int dri_error)
992 {
993 EGLint egl_error;
994
995 switch (dri_error) {
996 case __DRI_CTX_ERROR_SUCCESS:
997 return;
998
999 case __DRI_CTX_ERROR_NO_MEMORY:
1000 egl_error = EGL_BAD_ALLOC;
1001 break;
1002
1003 /* From the EGL_KHR_create_context spec, section "Errors":
1004 *
1005 * * If <config> does not support a client API context compatible
1006 * with the requested API major and minor version, [...] context flags,
1007 * and context reset notification behavior (for client API types where
1008 * these attributes are supported), then an EGL_BAD_MATCH error is
1009 * generated.
1010 *
1011 * * If an OpenGL ES context is requested and the values for
1012 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1013 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1014 * is not defined, than an EGL_BAD_MATCH error is generated.
1015 *
1016 * * If an OpenGL context is requested, the requested version is
1017 * greater than 3.2, and the value for attribute
1018 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1019 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1020 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1021 * one of these bits set; or if the implementation does not support
1022 * the requested profile, then an EGL_BAD_MATCH error is generated.
1023 */
1024 case __DRI_CTX_ERROR_BAD_API:
1025 case __DRI_CTX_ERROR_BAD_VERSION:
1026 case __DRI_CTX_ERROR_BAD_FLAG:
1027 egl_error = EGL_BAD_MATCH;
1028 break;
1029
1030 /* From the EGL_KHR_create_context spec, section "Errors":
1031 *
1032 * * If an attribute name or attribute value in <attrib_list> is not
1033 * recognized (including unrecognized bits in bitmask attributes),
1034 * then an EGL_BAD_ATTRIBUTE error is generated."
1035 */
1036 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1037 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1038 egl_error = EGL_BAD_ATTRIBUTE;
1039 break;
1040
1041 default:
1042 assert(0);
1043 egl_error = EGL_BAD_MATCH;
1044 break;
1045 }
1046
1047 _eglError(egl_error, "dri2_create_context");
1048 }
1049
1050 static bool
1051 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1052 struct dri2_egl_display *dri2_dpy,
1053 uint32_t *ctx_attribs,
1054 unsigned *num_attribs)
1055 {
1056 int pos = 0;
1057
1058 assert(*num_attribs >= 8);
1059
1060 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1061 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1062 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1063 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1064
1065 if (dri2_ctx->base.Flags != 0) {
1066 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1067 * extension, don't even try to send it the robust-access flag.
1068 * It may explode. Instead, generate the required EGL error here.
1069 */
1070 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1071 && !dri2_dpy->robustness) {
1072 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1073 return false;
1074 }
1075
1076 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1077 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1078 }
1079
1080 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1081 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1082 * extension, don't even try to send it a reset strategy. It may
1083 * explode. Instead, generate the required EGL error here.
1084 */
1085 if (!dri2_dpy->robustness) {
1086 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1087 return false;
1088 }
1089
1090 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1091 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1092 }
1093
1094 *num_attribs = pos;
1095
1096 return true;
1097 }
1098
1099 /**
1100 * Called via eglCreateContext(), drv->API.CreateContext().
1101 */
1102 static _EGLContext *
1103 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1104 _EGLContext *share_list, const EGLint *attrib_list)
1105 {
1106 struct dri2_egl_context *dri2_ctx;
1107 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1108 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1109 __DRIcontext *shared =
1110 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1111 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1112 const __DRIconfig *dri_config;
1113 int api;
1114
1115 (void) drv;
1116
1117 dri2_ctx = malloc(sizeof *dri2_ctx);
1118 if (!dri2_ctx) {
1119 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1120 return NULL;
1121 }
1122
1123 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1124 goto cleanup;
1125
1126 /* The EGL_EXT_create_context_robustness spec says:
1127 *
1128 * "Add to the eglCreateContext context creation errors: [...]
1129 *
1130 * * If the reset notification behavior of <share_context> and the
1131 * newly created context are different then an EGL_BAD_MATCH error is
1132 * generated."
1133 */
1134 if (share_list && share_list->ResetNotificationStrategy !=
1135 dri2_ctx->base.ResetNotificationStrategy) {
1136 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1137 goto cleanup;
1138 }
1139
1140 switch (dri2_ctx->base.ClientAPI) {
1141 case EGL_OPENGL_ES_API:
1142 switch (dri2_ctx->base.ClientMajorVersion) {
1143 case 1:
1144 api = __DRI_API_GLES;
1145 break;
1146 case 2:
1147 api = __DRI_API_GLES2;
1148 break;
1149 case 3:
1150 api = __DRI_API_GLES3;
1151 break;
1152 default:
1153 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1154 free(dri2_ctx);
1155 return NULL;
1156 }
1157 break;
1158 case EGL_OPENGL_API:
1159 if ((dri2_ctx->base.ClientMajorVersion >= 4
1160 || (dri2_ctx->base.ClientMajorVersion == 3
1161 && dri2_ctx->base.ClientMinorVersion >= 2))
1162 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1163 api = __DRI_API_OPENGL_CORE;
1164 else
1165 api = __DRI_API_OPENGL;
1166 break;
1167 default:
1168 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1169 free(dri2_ctx);
1170 return NULL;
1171 }
1172
1173 if (conf != NULL) {
1174 /* The config chosen here isn't necessarily
1175 * used for surfaces later.
1176 * A pixmap surface will use the single config.
1177 * This opportunity depends on disabling the
1178 * doubleBufferMode check in
1179 * src/mesa/main/context.c:check_compatible()
1180 */
1181 if (dri2_config->dri_double_config[0])
1182 dri_config = dri2_config->dri_double_config[0];
1183 else
1184 dri_config = dri2_config->dri_single_config[0];
1185
1186 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1187 * makes sure the back buffer will always be used.
1188 */
1189 if (conf->SurfaceType & EGL_WINDOW_BIT)
1190 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1191 }
1192 else
1193 dri_config = NULL;
1194
1195 if (dri2_dpy->image_driver) {
1196 unsigned error;
1197 unsigned num_attribs = 8;
1198 uint32_t ctx_attribs[8];
1199
1200 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1201 &num_attribs))
1202 goto cleanup;
1203
1204 dri2_ctx->dri_context =
1205 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1206 api,
1207 dri_config,
1208 shared,
1209 num_attribs / 2,
1210 ctx_attribs,
1211 & error,
1212 dri2_ctx);
1213 dri2_create_context_attribs_error(error);
1214 } else if (dri2_dpy->dri2) {
1215 if (dri2_dpy->dri2->base.version >= 3) {
1216 unsigned error;
1217 unsigned num_attribs = 8;
1218 uint32_t ctx_attribs[8];
1219
1220 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1221 &num_attribs))
1222 goto cleanup;
1223
1224 dri2_ctx->dri_context =
1225 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1226 api,
1227 dri_config,
1228 shared,
1229 num_attribs / 2,
1230 ctx_attribs,
1231 & error,
1232 dri2_ctx);
1233 dri2_create_context_attribs_error(error);
1234 } else {
1235 dri2_ctx->dri_context =
1236 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1237 api,
1238 dri_config,
1239 shared,
1240 dri2_ctx);
1241 }
1242 } else {
1243 assert(dri2_dpy->swrast);
1244 if (dri2_dpy->swrast->base.version >= 3) {
1245 unsigned error;
1246 unsigned num_attribs = 8;
1247 uint32_t ctx_attribs[8];
1248
1249 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1250 &num_attribs))
1251 goto cleanup;
1252
1253 dri2_ctx->dri_context =
1254 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1255 api,
1256 dri_config,
1257 shared,
1258 num_attribs / 2,
1259 ctx_attribs,
1260 & error,
1261 dri2_ctx);
1262 dri2_create_context_attribs_error(error);
1263 } else {
1264 dri2_ctx->dri_context =
1265 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1266 api,
1267 dri_config,
1268 shared,
1269 dri2_ctx);
1270 }
1271 }
1272
1273 if (!dri2_ctx->dri_context)
1274 goto cleanup;
1275
1276 return &dri2_ctx->base;
1277
1278 cleanup:
1279 free(dri2_ctx);
1280 return NULL;
1281 }
1282
1283 /**
1284 * Called via eglDestroyContext(), drv->API.DestroyContext().
1285 */
1286 static EGLBoolean
1287 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1288 {
1289 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1290 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1291
1292 if (_eglPutContext(ctx)) {
1293 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1294 free(dri2_ctx);
1295 }
1296
1297 return EGL_TRUE;
1298 }
1299
1300 static EGLBoolean
1301 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1302 {
1303 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1304
1305 if (!_eglPutSurface(surf))
1306 return EGL_TRUE;
1307
1308 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1309 }
1310
1311 /**
1312 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1313 */
1314 static EGLBoolean
1315 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1316 _EGLSurface *rsurf, _EGLContext *ctx)
1317 {
1318 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1319 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1320 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1321 _EGLContext *old_ctx;
1322 _EGLSurface *old_dsurf, *old_rsurf;
1323 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1324 __DRIdrawable *ddraw, *rdraw;
1325 __DRIcontext *cctx;
1326 EGLBoolean unbind;
1327
1328 if (!dri2_dpy)
1329 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1330
1331 /* make new bindings */
1332 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1333 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1334 return EGL_FALSE;
1335 }
1336
1337 /* flush before context switch */
1338 if (old_ctx)
1339 dri2_drv->glFlush();
1340
1341 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1342 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1343 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1344
1345 if (old_ctx) {
1346 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1347 dri2_dpy->core->unbindContext(old_cctx);
1348 }
1349
1350 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1351
1352 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1353 dri2_destroy_surface(drv, disp, old_dsurf);
1354 dri2_destroy_surface(drv, disp, old_rsurf);
1355
1356 if (!unbind)
1357 dri2_dpy->ref_count++;
1358 if (old_ctx) {
1359 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1360 dri2_destroy_context(drv, disp, old_ctx);
1361 dri2_display_release(old_disp);
1362 }
1363
1364 return EGL_TRUE;
1365 } else {
1366 /* undo the previous _eglBindContext */
1367 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1368 assert(&dri2_ctx->base == ctx &&
1369 tmp_dsurf == dsurf &&
1370 tmp_rsurf == rsurf);
1371
1372 _eglPutSurface(dsurf);
1373 _eglPutSurface(rsurf);
1374 _eglPutContext(ctx);
1375
1376 _eglPutSurface(old_dsurf);
1377 _eglPutSurface(old_rsurf);
1378 _eglPutContext(old_ctx);
1379
1380 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1381 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1382 * as EGL_SUCCESS.
1383 */
1384 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1385 }
1386 }
1387
1388 __DRIdrawable *
1389 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1390 {
1391 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1392
1393 return dri2_surf->dri_drawable;
1394 }
1395
1396 /*
1397 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1398 */
1399 static _EGLProc
1400 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1401 {
1402 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1403
1404 return dri2_drv->get_proc_address(procname);
1405 }
1406
1407 static _EGLSurface*
1408 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1409 _EGLConfig *conf, void *native_window,
1410 const EGLint *attrib_list)
1411 {
1412 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1413 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1414 attrib_list);
1415 }
1416
1417 static _EGLSurface*
1418 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1419 _EGLConfig *conf, void *native_pixmap,
1420 const EGLint *attrib_list)
1421 {
1422 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1423 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1424 attrib_list);
1425 }
1426
1427 static _EGLSurface*
1428 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1429 _EGLConfig *conf, const EGLint *attrib_list)
1430 {
1431 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1432 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1433 }
1434
1435 static EGLBoolean
1436 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1437 EGLint interval)
1438 {
1439 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1440 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1441 }
1442
1443 /**
1444 * Asks the client API to flush any rendering to the drawable so that we can
1445 * do our swapbuffers.
1446 */
1447 void
1448 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1449 {
1450 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1451 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1452
1453 if (dri2_dpy->flush) {
1454 if (dri2_dpy->flush->base.version >= 4) {
1455 /* We know there's a current context because:
1456 *
1457 * "If surface is not bound to the calling thread’s current
1458 * context, an EGL_BAD_SURFACE error is generated."
1459 */
1460 _EGLContext *ctx = _eglGetCurrentContext();
1461 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1462
1463 /* From the EGL 1.4 spec (page 52):
1464 *
1465 * "The contents of ancillary buffers are always undefined
1466 * after calling eglSwapBuffers."
1467 */
1468 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1469 dri_drawable,
1470 __DRI2_FLUSH_DRAWABLE |
1471 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1472 __DRI2_THROTTLE_SWAPBUFFER);
1473 } else {
1474 dri2_dpy->flush->flush(dri_drawable);
1475 }
1476 }
1477 }
1478
1479 static EGLBoolean
1480 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1481 {
1482 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1483 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1484 }
1485
1486 static EGLBoolean
1487 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1488 _EGLSurface *surf,
1489 const EGLint *rects, EGLint n_rects)
1490 {
1491 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1492 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1493 rects, n_rects);
1494 }
1495
1496 static EGLBoolean
1497 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1498 EGLint numRects, const EGLint *rects)
1499 {
1500 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1501 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1502 }
1503
1504 static EGLBoolean
1505 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1506 EGLint x, EGLint y, EGLint width, EGLint height)
1507 {
1508 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1509 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1510 }
1511
1512 static EGLBoolean
1513 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1514 void *native_pixmap_target)
1515 {
1516 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1517 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1518 }
1519
1520 static EGLint
1521 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1522 {
1523 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1524 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1525 }
1526
1527 static EGLBoolean
1528 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1529 {
1530 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1531 _EGLSurface *surf = ctx->DrawSurface;
1532 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1533
1534 (void) drv;
1535
1536 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1537 * we need to copy fake to real here.*/
1538
1539 if (dri2_dpy->flush != NULL)
1540 dri2_dpy->flush->flush(dri_drawable);
1541
1542 return EGL_TRUE;
1543 }
1544
1545 static EGLBoolean
1546 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1547 {
1548 (void) drv;
1549 (void) disp;
1550
1551 if (engine != EGL_CORE_NATIVE_ENGINE)
1552 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1553 /* glXWaitX(); */
1554
1555 return EGL_TRUE;
1556 }
1557
1558 static EGLBoolean
1559 dri2_bind_tex_image(_EGLDriver *drv,
1560 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1561 {
1562 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1563 struct dri2_egl_context *dri2_ctx;
1564 _EGLContext *ctx;
1565 GLint format, target;
1566 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1567
1568 ctx = _eglGetCurrentContext();
1569 dri2_ctx = dri2_egl_context(ctx);
1570
1571 if (!_eglBindTexImage(drv, disp, surf, buffer))
1572 return EGL_FALSE;
1573
1574 switch (surf->TextureFormat) {
1575 case EGL_TEXTURE_RGB:
1576 format = __DRI_TEXTURE_FORMAT_RGB;
1577 break;
1578 case EGL_TEXTURE_RGBA:
1579 format = __DRI_TEXTURE_FORMAT_RGBA;
1580 break;
1581 default:
1582 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1583 format = __DRI_TEXTURE_FORMAT_RGBA;
1584 }
1585
1586 switch (surf->TextureTarget) {
1587 case EGL_TEXTURE_2D:
1588 target = GL_TEXTURE_2D;
1589 break;
1590 default:
1591 target = GL_TEXTURE_2D;
1592 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1593 }
1594
1595 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1596 target, format,
1597 dri_drawable);
1598
1599 return EGL_TRUE;
1600 }
1601
1602 static EGLBoolean
1603 dri2_release_tex_image(_EGLDriver *drv,
1604 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1605 {
1606 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1607 struct dri2_egl_context *dri2_ctx;
1608 _EGLContext *ctx;
1609 GLint target;
1610 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1611
1612 ctx = _eglGetCurrentContext();
1613 dri2_ctx = dri2_egl_context(ctx);
1614
1615 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1616 return EGL_FALSE;
1617
1618 switch (surf->TextureTarget) {
1619 case EGL_TEXTURE_2D:
1620 target = GL_TEXTURE_2D;
1621 break;
1622 default:
1623 assert(0);
1624 }
1625
1626 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1627 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1628 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1629 target, dri_drawable);
1630 }
1631
1632 return EGL_TRUE;
1633 }
1634
1635 static _EGLImage*
1636 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1637 EGLenum target, EGLClientBuffer buffer,
1638 const EGLint *attr_list)
1639 {
1640 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1641 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1642 attr_list);
1643 }
1644
1645 static _EGLImage *
1646 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1647 {
1648 struct dri2_egl_image *dri2_img;
1649
1650 if (dri_image == NULL) {
1651 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1652 return NULL;
1653 }
1654
1655 dri2_img = malloc(sizeof *dri2_img);
1656 if (!dri2_img) {
1657 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1658 return NULL;
1659 }
1660
1661 if (!_eglInitImage(&dri2_img->base, disp)) {
1662 free(dri2_img);
1663 return NULL;
1664 }
1665
1666 dri2_img->dri_image = dri_image;
1667
1668 return &dri2_img->base;
1669 }
1670
1671 static _EGLImage *
1672 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1673 EGLClientBuffer buffer,
1674 const EGLint *attr_list)
1675 {
1676 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1677 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1678 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1679 __DRIimage *dri_image;
1680
1681 if (renderbuffer == 0) {
1682 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1683 return EGL_NO_IMAGE_KHR;
1684 }
1685
1686 dri_image =
1687 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1688 renderbuffer, NULL);
1689
1690 return dri2_create_image_from_dri(disp, dri_image);
1691 }
1692
1693 #ifdef HAVE_WAYLAND_PLATFORM
1694
1695 /* This structure describes how a wl_buffer maps to one or more
1696 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1697 * offsets and strides of the planes in the buffer. This table maps a
1698 * wl_drm format code to a description of the planes in the buffer
1699 * that lets us create a __DRIimage for each of the planes. */
1700
1701 static const struct wl_drm_components_descriptor {
1702 uint32_t dri_components;
1703 EGLint components;
1704 int nplanes;
1705 } wl_drm_components[] = {
1706 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1707 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1708 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1709 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1710 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1711 };
1712
1713 static _EGLImage *
1714 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1715 EGLClientBuffer _buffer,
1716 const EGLint *attr_list)
1717 {
1718 struct wl_drm_buffer *buffer;
1719 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1720 const struct wl_drm_components_descriptor *f;
1721 __DRIimage *dri_image;
1722 _EGLImageAttribs attrs;
1723 EGLint err;
1724 int32_t plane;
1725
1726 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1727 (struct wl_resource *) _buffer);
1728 if (!buffer)
1729 return NULL;
1730
1731 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1732 plane = attrs.PlaneWL;
1733 if (err != EGL_SUCCESS) {
1734 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1735 return NULL;
1736 }
1737
1738 f = buffer->driver_format;
1739 if (plane < 0 || plane >= f->nplanes) {
1740 _eglError(EGL_BAD_PARAMETER,
1741 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1742 return NULL;
1743 }
1744
1745 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1746
1747 if (dri_image == NULL) {
1748 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1749 return NULL;
1750 }
1751
1752 return dri2_create_image_from_dri(disp, dri_image);
1753 }
1754 #endif
1755
1756 static EGLBoolean
1757 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1758 EGLuint64KHR *ust, EGLuint64KHR *msc,
1759 EGLuint64KHR *sbc)
1760 {
1761 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1762 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1763 }
1764
1765 /**
1766 * Set the error code after a call to
1767 * dri2_egl_image::dri_image::createImageFromTexture.
1768 */
1769 static void
1770 dri2_create_image_khr_texture_error(int dri_error)
1771 {
1772 EGLint egl_error;
1773
1774 switch (dri_error) {
1775 case __DRI_IMAGE_ERROR_SUCCESS:
1776 return;
1777
1778 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1779 egl_error = EGL_BAD_ALLOC;
1780 break;
1781
1782 case __DRI_IMAGE_ERROR_BAD_MATCH:
1783 egl_error = EGL_BAD_MATCH;
1784 break;
1785
1786 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1787 egl_error = EGL_BAD_PARAMETER;
1788 break;
1789
1790 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1791 egl_error = EGL_BAD_ACCESS;
1792 break;
1793
1794 default:
1795 assert(0);
1796 egl_error = EGL_BAD_MATCH;
1797 break;
1798 }
1799
1800 _eglError(egl_error, "dri2_create_image_khr_texture");
1801 }
1802
1803 static _EGLImage *
1804 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1805 EGLenum target,
1806 EGLClientBuffer buffer,
1807 const EGLint *attr_list)
1808 {
1809 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1810 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1811 struct dri2_egl_image *dri2_img;
1812 GLuint texture = (GLuint) (uintptr_t) buffer;
1813 _EGLImageAttribs attrs;
1814 GLuint depth;
1815 GLenum gl_target;
1816 unsigned error;
1817
1818 if (texture == 0) {
1819 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1820 return EGL_NO_IMAGE_KHR;
1821 }
1822
1823 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1824 return EGL_NO_IMAGE_KHR;
1825
1826 switch (target) {
1827 case EGL_GL_TEXTURE_2D_KHR:
1828 depth = 0;
1829 gl_target = GL_TEXTURE_2D;
1830 break;
1831 case EGL_GL_TEXTURE_3D_KHR:
1832 if (disp->Extensions.KHR_gl_texture_3D_image) {
1833 depth = attrs.GLTextureZOffset;
1834 gl_target = GL_TEXTURE_3D;
1835 break;
1836 }
1837 else {
1838 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1839 return EGL_NO_IMAGE_KHR;
1840 }
1841 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1842 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1843 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1844 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1845 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1846 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1847 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1848 gl_target = GL_TEXTURE_CUBE_MAP;
1849 break;
1850 default:
1851 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1852 return EGL_NO_IMAGE_KHR;
1853 }
1854
1855 dri2_img = malloc(sizeof *dri2_img);
1856 if (!dri2_img) {
1857 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1858 return EGL_NO_IMAGE_KHR;
1859 }
1860
1861 if (!_eglInitImage(&dri2_img->base, disp)) {
1862 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1863 free(dri2_img);
1864 return EGL_NO_IMAGE_KHR;
1865 }
1866
1867 dri2_img->dri_image =
1868 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1869 gl_target,
1870 texture,
1871 depth,
1872 attrs.GLTextureLevel,
1873 &error,
1874 dri2_img);
1875 dri2_create_image_khr_texture_error(error);
1876
1877 if (!dri2_img->dri_image) {
1878 free(dri2_img);
1879 return EGL_NO_IMAGE_KHR;
1880 }
1881 return &dri2_img->base;
1882 }
1883
1884 static EGLBoolean
1885 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1886 EGLint attribute, EGLint *value)
1887 {
1888 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1889 if (!dri2_dpy->vtbl->query_surface)
1890 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1891 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1892 }
1893
1894 static struct wl_buffer*
1895 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1896 _EGLImage *img)
1897 {
1898 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1899 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1900 }
1901
1902 #ifdef HAVE_LIBDRM
1903 static _EGLImage *
1904 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1905 EGLClientBuffer buffer, const EGLint *attr_list)
1906 {
1907 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1908 EGLint format, name, pitch, err;
1909 _EGLImageAttribs attrs;
1910 __DRIimage *dri_image;
1911
1912 name = (EGLint) (uintptr_t) buffer;
1913
1914 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1915 if (err != EGL_SUCCESS)
1916 return NULL;
1917
1918 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1919 attrs.DRMBufferStrideMESA <= 0) {
1920 _eglError(EGL_BAD_PARAMETER,
1921 "bad width, height or stride");
1922 return NULL;
1923 }
1924
1925 switch (attrs.DRMBufferFormatMESA) {
1926 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1927 format = __DRI_IMAGE_FORMAT_ARGB8888;
1928 pitch = attrs.DRMBufferStrideMESA;
1929 break;
1930 default:
1931 _eglError(EGL_BAD_PARAMETER,
1932 "dri2_create_image_khr: unsupported pixmap depth");
1933 return NULL;
1934 }
1935
1936 dri_image =
1937 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1938 attrs.Width,
1939 attrs.Height,
1940 format,
1941 name,
1942 pitch,
1943 NULL);
1944
1945 return dri2_create_image_from_dri(disp, dri_image);
1946 }
1947
1948 static EGLBoolean
1949 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1950 {
1951 unsigned i;
1952
1953 /**
1954 * The spec says:
1955 *
1956 * "Required attributes and their values are as follows:
1957 *
1958 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1959 *
1960 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1961 * by drm_fourcc.h and used as the pixel_format parameter of the
1962 * drm_mode_fb_cmd2 ioctl."
1963 *
1964 * and
1965 *
1966 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1967 * incomplete, EGL_BAD_PARAMETER is generated."
1968 */
1969 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1970 !attrs->DMABufFourCC.IsPresent) {
1971 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1972 return EGL_FALSE;
1973 }
1974
1975 /**
1976 * Also:
1977 *
1978 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1979 * specified for a plane's pitch or offset isn't supported by EGL,
1980 * EGL_BAD_ACCESS is generated."
1981 */
1982 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1983 if (attrs->DMABufPlanePitches[i].IsPresent &&
1984 attrs->DMABufPlanePitches[i].Value <= 0) {
1985 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1986 return EGL_FALSE;
1987 }
1988 }
1989
1990 return EGL_TRUE;
1991 }
1992
1993 /* Returns the total number of file descriptors. Zero indicates an error. */
1994 static unsigned
1995 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1996 {
1997 unsigned i, plane_n;
1998
1999 switch (attrs->DMABufFourCC.Value) {
2000 case DRM_FORMAT_R8:
2001 case DRM_FORMAT_RG88:
2002 case DRM_FORMAT_GR88:
2003 case DRM_FORMAT_R16:
2004 case DRM_FORMAT_GR1616:
2005 case DRM_FORMAT_RGB332:
2006 case DRM_FORMAT_BGR233:
2007 case DRM_FORMAT_XRGB4444:
2008 case DRM_FORMAT_XBGR4444:
2009 case DRM_FORMAT_RGBX4444:
2010 case DRM_FORMAT_BGRX4444:
2011 case DRM_FORMAT_ARGB4444:
2012 case DRM_FORMAT_ABGR4444:
2013 case DRM_FORMAT_RGBA4444:
2014 case DRM_FORMAT_BGRA4444:
2015 case DRM_FORMAT_XRGB1555:
2016 case DRM_FORMAT_XBGR1555:
2017 case DRM_FORMAT_RGBX5551:
2018 case DRM_FORMAT_BGRX5551:
2019 case DRM_FORMAT_ARGB1555:
2020 case DRM_FORMAT_ABGR1555:
2021 case DRM_FORMAT_RGBA5551:
2022 case DRM_FORMAT_BGRA5551:
2023 case DRM_FORMAT_RGB565:
2024 case DRM_FORMAT_BGR565:
2025 case DRM_FORMAT_RGB888:
2026 case DRM_FORMAT_BGR888:
2027 case DRM_FORMAT_XRGB8888:
2028 case DRM_FORMAT_XBGR8888:
2029 case DRM_FORMAT_RGBX8888:
2030 case DRM_FORMAT_BGRX8888:
2031 case DRM_FORMAT_ARGB8888:
2032 case DRM_FORMAT_ABGR8888:
2033 case DRM_FORMAT_RGBA8888:
2034 case DRM_FORMAT_BGRA8888:
2035 case DRM_FORMAT_XRGB2101010:
2036 case DRM_FORMAT_XBGR2101010:
2037 case DRM_FORMAT_RGBX1010102:
2038 case DRM_FORMAT_BGRX1010102:
2039 case DRM_FORMAT_ARGB2101010:
2040 case DRM_FORMAT_ABGR2101010:
2041 case DRM_FORMAT_RGBA1010102:
2042 case DRM_FORMAT_BGRA1010102:
2043 case DRM_FORMAT_YUYV:
2044 case DRM_FORMAT_YVYU:
2045 case DRM_FORMAT_UYVY:
2046 case DRM_FORMAT_VYUY:
2047 plane_n = 1;
2048 break;
2049 case DRM_FORMAT_NV12:
2050 case DRM_FORMAT_NV21:
2051 case DRM_FORMAT_NV16:
2052 case DRM_FORMAT_NV61:
2053 plane_n = 2;
2054 break;
2055 case DRM_FORMAT_YUV410:
2056 case DRM_FORMAT_YVU410:
2057 case DRM_FORMAT_YUV411:
2058 case DRM_FORMAT_YVU411:
2059 case DRM_FORMAT_YUV420:
2060 case DRM_FORMAT_YVU420:
2061 case DRM_FORMAT_YUV422:
2062 case DRM_FORMAT_YVU422:
2063 case DRM_FORMAT_YUV444:
2064 case DRM_FORMAT_YVU444:
2065 plane_n = 3;
2066 break;
2067 default:
2068 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2069 return 0;
2070 }
2071
2072 /**
2073 * The spec says:
2074 *
2075 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2076 * incomplete, EGL_BAD_PARAMETER is generated."
2077 */
2078 for (i = 0; i < plane_n; ++i) {
2079 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2080 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2081 !attrs->DMABufPlanePitches[i].IsPresent) {
2082 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2083 return 0;
2084 }
2085 }
2086
2087 /**
2088 * The spec also says:
2089 *
2090 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2091 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2092 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2093 * attributes are specified."
2094 */
2095 for (i = plane_n; i < 3; ++i) {
2096 if (attrs->DMABufPlaneFds[i].IsPresent ||
2097 attrs->DMABufPlaneOffsets[i].IsPresent ||
2098 attrs->DMABufPlanePitches[i].IsPresent) {
2099 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2100 return 0;
2101 }
2102 }
2103
2104 return plane_n;
2105 }
2106
2107 /**
2108 * The spec says:
2109 *
2110 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2111 * EGL will take a reference to the dma_buf(s) which it will release at any
2112 * time while the EGLDisplay is initialized. It is the responsibility of the
2113 * application to close the dma_buf file descriptors."
2114 *
2115 * Therefore we must never close or otherwise modify the file descriptors.
2116 */
2117 _EGLImage *
2118 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2119 EGLClientBuffer buffer, const EGLint *attr_list)
2120 {
2121 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2122 _EGLImage *res;
2123 EGLint err;
2124 _EGLImageAttribs attrs;
2125 __DRIimage *dri_image;
2126 unsigned num_fds;
2127 unsigned i;
2128 int fds[3];
2129 int pitches[3];
2130 int offsets[3];
2131 unsigned error;
2132
2133 /**
2134 * The spec says:
2135 *
2136 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2137 * error EGL_BAD_PARAMETER is generated."
2138 */
2139 if (buffer != NULL) {
2140 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2141 return NULL;
2142 }
2143
2144 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2145 if (err != EGL_SUCCESS) {
2146 _eglError(err, "bad attribute");
2147 return NULL;
2148 }
2149
2150 if (!dri2_check_dma_buf_attribs(&attrs))
2151 return NULL;
2152
2153 num_fds = dri2_check_dma_buf_format(&attrs);
2154 if (!num_fds)
2155 return NULL;
2156
2157 for (i = 0; i < num_fds; ++i) {
2158 fds[i] = attrs.DMABufPlaneFds[i].Value;
2159 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2160 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2161 }
2162
2163 dri_image =
2164 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2165 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2166 fds, num_fds, pitches, offsets,
2167 attrs.DMABufYuvColorSpaceHint.Value,
2168 attrs.DMABufSampleRangeHint.Value,
2169 attrs.DMABufChromaHorizontalSiting.Value,
2170 attrs.DMABufChromaVerticalSiting.Value,
2171 &error,
2172 NULL);
2173 dri2_create_image_khr_texture_error(error);
2174
2175 if (!dri_image)
2176 return EGL_NO_IMAGE_KHR;
2177
2178 res = dri2_create_image_from_dri(disp, dri_image);
2179
2180 return res;
2181 }
2182 static _EGLImage *
2183 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2184 const EGLint *attr_list)
2185 {
2186 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2187 struct dri2_egl_image *dri2_img;
2188 _EGLImageAttribs attrs;
2189 unsigned int dri_use, valid_mask;
2190 int format;
2191 EGLint err = EGL_SUCCESS;
2192
2193 (void) drv;
2194
2195 dri2_img = malloc(sizeof *dri2_img);
2196 if (!dri2_img) {
2197 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2198 return EGL_NO_IMAGE_KHR;
2199 }
2200
2201 if (!attr_list) {
2202 err = EGL_BAD_PARAMETER;
2203 goto cleanup_img;
2204 }
2205
2206 if (!_eglInitImage(&dri2_img->base, disp)) {
2207 err = EGL_BAD_PARAMETER;
2208 goto cleanup_img;
2209 }
2210
2211 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2212 if (err != EGL_SUCCESS)
2213 goto cleanup_img;
2214
2215 if (attrs.Width <= 0 || attrs.Height <= 0) {
2216 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2217 attrs.Width, attrs.Height);
2218 goto cleanup_img;
2219 }
2220
2221 switch (attrs.DRMBufferFormatMESA) {
2222 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2223 format = __DRI_IMAGE_FORMAT_ARGB8888;
2224 break;
2225 default:
2226 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2227 attrs.DRMBufferFormatMESA);
2228 goto cleanup_img;
2229 }
2230
2231 valid_mask =
2232 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2233 EGL_DRM_BUFFER_USE_SHARE_MESA |
2234 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2235 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2236 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2237 attrs.DRMBufferUseMESA & ~valid_mask);
2238 goto cleanup_img;
2239 }
2240
2241 dri_use = 0;
2242 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2243 dri_use |= __DRI_IMAGE_USE_SHARE;
2244 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2245 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2246 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2247 dri_use |= __DRI_IMAGE_USE_CURSOR;
2248
2249 dri2_img->dri_image =
2250 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2251 attrs.Width, attrs.Height,
2252 format, dri_use, dri2_img);
2253 if (dri2_img->dri_image == NULL) {
2254 err = EGL_BAD_ALLOC;
2255 goto cleanup_img;
2256 }
2257
2258 return &dri2_img->base;
2259
2260 cleanup_img:
2261 free(dri2_img);
2262 _eglError(err, "dri2_create_drm_image_mesa");
2263
2264 return EGL_NO_IMAGE_KHR;
2265 }
2266
2267 static EGLBoolean
2268 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2269 EGLint *name, EGLint *handle, EGLint *stride)
2270 {
2271 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2272 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2273
2274 (void) drv;
2275
2276 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2277 __DRI_IMAGE_ATTRIB_NAME, name)) {
2278 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2279 return EGL_FALSE;
2280 }
2281
2282 if (handle)
2283 dri2_dpy->image->queryImage(dri2_img->dri_image,
2284 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2285
2286 if (stride)
2287 dri2_dpy->image->queryImage(dri2_img->dri_image,
2288 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2289
2290 return EGL_TRUE;
2291 }
2292
2293 static EGLBoolean
2294 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2295 _EGLImage *img,
2296 EGLint *fourcc, EGLint *nplanes,
2297 EGLuint64KHR *modifiers)
2298 {
2299 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2300 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2301
2302 (void) drv;
2303
2304
2305 if (nplanes)
2306 dri2_dpy->image->queryImage(dri2_img->dri_image,
2307 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2308 if (fourcc)
2309 dri2_dpy->image->queryImage(dri2_img->dri_image,
2310 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2311
2312 if (modifiers)
2313 *modifiers = 0;
2314
2315 return EGL_TRUE;
2316 }
2317
2318 static EGLBoolean
2319 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2320 int *fds, EGLint *strides, EGLint *offsets)
2321 {
2322 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2323 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2324
2325 (void) drv;
2326
2327 /* rework later to provide multiple fds/strides/offsets */
2328 if (fds)
2329 dri2_dpy->image->queryImage(dri2_img->dri_image,
2330 __DRI_IMAGE_ATTRIB_FD, fds);
2331
2332 if (strides)
2333 dri2_dpy->image->queryImage(dri2_img->dri_image,
2334 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2335
2336 if (offsets) {
2337 int img_offset;
2338 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2339 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2340 if (ret)
2341 offsets[0] = img_offset;
2342 else
2343 offsets[0] = 0;
2344 }
2345
2346 return EGL_TRUE;
2347 }
2348
2349 #endif
2350
2351 _EGLImage *
2352 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2353 _EGLContext *ctx, EGLenum target,
2354 EGLClientBuffer buffer, const EGLint *attr_list)
2355 {
2356 (void) drv;
2357
2358 switch (target) {
2359 case EGL_GL_TEXTURE_2D_KHR:
2360 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2361 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2362 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2363 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2364 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2365 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2366 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2367 case EGL_GL_TEXTURE_3D_KHR:
2368 if (disp->Extensions.KHR_gl_texture_3D_image) {
2369 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2370 }
2371 else {
2372 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2373 return EGL_NO_IMAGE_KHR;
2374 }
2375 case EGL_GL_RENDERBUFFER_KHR:
2376 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2377 #ifdef HAVE_LIBDRM
2378 case EGL_DRM_BUFFER_MESA:
2379 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2380 case EGL_LINUX_DMA_BUF_EXT:
2381 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2382 #endif
2383 #ifdef HAVE_WAYLAND_PLATFORM
2384 case EGL_WAYLAND_BUFFER_WL:
2385 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2386 #endif
2387 default:
2388 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2389 return EGL_NO_IMAGE_KHR;
2390 }
2391 }
2392
2393 static EGLBoolean
2394 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2395 {
2396 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2397 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2398
2399 (void) drv;
2400
2401 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2402 free(dri2_img);
2403
2404 return EGL_TRUE;
2405 }
2406
2407 #ifdef HAVE_WAYLAND_PLATFORM
2408
2409 static void
2410 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2411 struct wl_drm_buffer *buffer)
2412 {
2413 _EGLDisplay *disp = user_data;
2414 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2415 __DRIimage *img;
2416 int i, dri_components = 0;
2417
2418 if (fd == -1)
2419 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2420 buffer->width,
2421 buffer->height,
2422 buffer->format,
2423 (int*)&name, 1,
2424 buffer->stride,
2425 buffer->offset,
2426 NULL);
2427 else
2428 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2429 buffer->width,
2430 buffer->height,
2431 buffer->format,
2432 &fd, 1,
2433 buffer->stride,
2434 buffer->offset,
2435 NULL);
2436
2437 if (img == NULL)
2438 return;
2439
2440 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2441
2442 buffer->driver_format = NULL;
2443 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2444 if (wl_drm_components[i].dri_components == dri_components)
2445 buffer->driver_format = &wl_drm_components[i];
2446
2447 if (buffer->driver_format == NULL)
2448 dri2_dpy->image->destroyImage(img);
2449 else
2450 buffer->driver_buffer = img;
2451 }
2452
2453 static void
2454 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2455 {
2456 _EGLDisplay *disp = user_data;
2457 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2458
2459 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2460 }
2461
2462 static struct wayland_drm_callbacks wl_drm_callbacks = {
2463 .authenticate = NULL,
2464 .reference_buffer = dri2_wl_reference_buffer,
2465 .release_buffer = dri2_wl_release_buffer
2466 };
2467
2468 static EGLBoolean
2469 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2470 struct wl_display *wl_dpy)
2471 {
2472 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2473 int flags = 0;
2474 uint64_t cap;
2475
2476 (void) drv;
2477
2478 if (dri2_dpy->wl_server_drm)
2479 return EGL_FALSE;
2480
2481 wl_drm_callbacks.authenticate =
2482 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2483
2484 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2485 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2486 dri2_dpy->image->base.version >= 7 &&
2487 dri2_dpy->image->createImageFromFds != NULL)
2488 flags |= WAYLAND_DRM_PRIME;
2489
2490 dri2_dpy->wl_server_drm =
2491 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2492 &wl_drm_callbacks, disp, flags);
2493
2494 if (!dri2_dpy->wl_server_drm)
2495 return EGL_FALSE;
2496
2497 #ifdef HAVE_DRM_PLATFORM
2498 /* We have to share the wl_drm instance with gbm, so gbm can convert
2499 * wl_buffers to gbm bos. */
2500 if (dri2_dpy->gbm_dri)
2501 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2502 #endif
2503
2504 return EGL_TRUE;
2505 }
2506
2507 static EGLBoolean
2508 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2509 struct wl_display *wl_dpy)
2510 {
2511 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2512
2513 (void) drv;
2514
2515 if (!dri2_dpy->wl_server_drm)
2516 return EGL_FALSE;
2517
2518 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2519 dri2_dpy->wl_server_drm = NULL;
2520
2521 return EGL_TRUE;
2522 }
2523
2524 static EGLBoolean
2525 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2526 struct wl_resource *buffer_resource,
2527 EGLint attribute, EGLint *value)
2528 {
2529 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2530 struct wl_drm_buffer *buffer;
2531 const struct wl_drm_components_descriptor *format;
2532
2533 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2534 if (!buffer)
2535 return EGL_FALSE;
2536
2537 format = buffer->driver_format;
2538 switch (attribute) {
2539 case EGL_TEXTURE_FORMAT:
2540 *value = format->components;
2541 return EGL_TRUE;
2542 case EGL_WIDTH:
2543 *value = buffer->width;
2544 return EGL_TRUE;
2545 case EGL_HEIGHT:
2546 *value = buffer->height;
2547 return EGL_TRUE;
2548 }
2549
2550 return EGL_FALSE;
2551 }
2552 #endif
2553
2554 static void
2555 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2556 {
2557 p_atomic_inc(&sync->refcount);
2558 }
2559
2560 static void
2561 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2562 struct dri2_egl_sync *dri2_sync)
2563 {
2564 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2565 switch (dri2_sync->base.Type) {
2566 case EGL_SYNC_REUSABLE_KHR:
2567 cnd_destroy(&dri2_sync->cond);
2568 break;
2569 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2570 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2571 close(dri2_sync->base.SyncFd);
2572 break;
2573 default:
2574 break;
2575 }
2576
2577 if (dri2_sync->fence)
2578 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2579
2580 free(dri2_sync);
2581 }
2582 }
2583
2584 static _EGLSync *
2585 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2586 EGLenum type, const EGLAttrib *attrib_list)
2587 {
2588 _EGLContext *ctx = _eglGetCurrentContext();
2589 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2590 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2591 struct dri2_egl_sync *dri2_sync;
2592 EGLint ret;
2593 pthread_condattr_t attr;
2594
2595 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2596 if (!dri2_sync) {
2597 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2598 return NULL;
2599 }
2600
2601 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2602 free(dri2_sync);
2603 return NULL;
2604 }
2605
2606 switch (type) {
2607 case EGL_SYNC_FENCE_KHR:
2608 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2609 if (!dri2_sync->fence) {
2610 /* Why did it fail? DRI doesn't return an error code, so we emit
2611 * a generic EGL error that doesn't communicate user error.
2612 */
2613 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2614 free(dri2_sync);
2615 return NULL;
2616 }
2617 break;
2618
2619 case EGL_SYNC_CL_EVENT_KHR:
2620 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2621 dri2_dpy->dri_screen,
2622 dri2_sync->base.CLEvent);
2623 /* this can only happen if the cl_event passed in is invalid. */
2624 if (!dri2_sync->fence) {
2625 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2626 free(dri2_sync);
2627 return NULL;
2628 }
2629
2630 /* the initial status must be "signaled" if the cl_event is signaled */
2631 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2632 dri2_sync->fence, 0, 0))
2633 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2634 break;
2635
2636 case EGL_SYNC_REUSABLE_KHR:
2637 /* intialize attr */
2638 ret = pthread_condattr_init(&attr);
2639
2640 if (ret) {
2641 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2642 free(dri2_sync);
2643 return NULL;
2644 }
2645
2646 /* change clock attribute to CLOCK_MONOTONIC */
2647 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2648
2649 if (ret) {
2650 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2651 free(dri2_sync);
2652 return NULL;
2653 }
2654
2655 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2656
2657 if (ret) {
2658 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2659 free(dri2_sync);
2660 return NULL;
2661 }
2662
2663 /* initial status of reusable sync must be "unsignaled" */
2664 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2665 break;
2666
2667 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2668 if (dri2_dpy->fence->create_fence_fd) {
2669 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2670 dri2_ctx->dri_context,
2671 dri2_sync->base.SyncFd);
2672 }
2673 if (!dri2_sync->fence) {
2674 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2675 free(dri2_sync);
2676 return NULL;
2677 }
2678 break;
2679 }
2680
2681 p_atomic_set(&dri2_sync->refcount, 1);
2682 return &dri2_sync->base;
2683 }
2684
2685 static EGLBoolean
2686 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2687 {
2688 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2689 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2690 EGLint ret = EGL_TRUE;
2691 EGLint err;
2692
2693 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2694 * then unlock all threads possibly blocked by the reusable sync before
2695 * destroying it.
2696 */
2697 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2698 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2699 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2700 /* unblock all threads currently blocked by sync */
2701 err = cnd_broadcast(&dri2_sync->cond);
2702
2703 if (err) {
2704 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2705 ret = EGL_FALSE;
2706 }
2707 }
2708
2709 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2710
2711 return ret;
2712 }
2713
2714 static EGLint
2715 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2716 {
2717 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2718 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2719
2720 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2721
2722 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2723 /* try to retrieve the actual native fence fd.. if rendering is
2724 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2725 */
2726 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2727 dri2_sync->fence);
2728 }
2729
2730 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2731 /* if native fence fd still not created, return an error: */
2732 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2733 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2734 }
2735
2736 return dup(sync->SyncFd);
2737 }
2738
2739 static EGLint
2740 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2741 EGLint flags, EGLTime timeout)
2742 {
2743 _EGLContext *ctx = _eglGetCurrentContext();
2744 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2745 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2746 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2747 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2748 unsigned wait_flags = 0;
2749
2750 /* timespecs for cnd_timedwait */
2751 struct timespec current;
2752 xtime expire;
2753
2754 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2755
2756 /* The EGL_KHR_fence_sync spec states:
2757 *
2758 * "If no context is current for the bound API,
2759 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2760 */
2761 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2762 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2763
2764 /* the sync object should take a reference while waiting */
2765 dri2_egl_ref_sync(dri2_sync);
2766
2767 switch (sync->Type) {
2768 case EGL_SYNC_FENCE_KHR:
2769 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2770 case EGL_SYNC_CL_EVENT_KHR:
2771 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2772 dri2_sync->fence, wait_flags,
2773 timeout))
2774 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2775 else
2776 ret = EGL_TIMEOUT_EXPIRED_KHR;
2777 break;
2778
2779 case EGL_SYNC_REUSABLE_KHR:
2780 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2781 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2782 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2783 dri2_drv->glFlush();
2784 }
2785
2786 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2787 if (timeout == EGL_FOREVER_KHR) {
2788 mtx_lock(&dri2_sync->mutex);
2789 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2790 mtx_unlock(&dri2_sync->mutex);
2791 } else {
2792 /* if reusable sync has not been yet signaled */
2793 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2794 clock_gettime(CLOCK_MONOTONIC, &current);
2795
2796 /* calculating when to expire */
2797 expire.nsec = timeout % 1000000000L;
2798 expire.sec = timeout / 1000000000L;
2799
2800 expire.nsec += current.tv_nsec;
2801 expire.sec += current.tv_sec;
2802
2803 /* expire.nsec now is a number between 0 and 1999999998 */
2804 if (expire.nsec > 999999999L) {
2805 expire.sec++;
2806 expire.nsec -= 1000000000L;
2807 }
2808
2809 mtx_lock(&dri2_sync->mutex);
2810 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2811 mtx_unlock(&dri2_sync->mutex);
2812
2813 if (ret == thrd_busy) {
2814 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2815 ret = EGL_TIMEOUT_EXPIRED_KHR;
2816 } else {
2817 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2818 ret = EGL_FALSE;
2819 }
2820 }
2821 }
2822 }
2823 break;
2824 }
2825 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2826
2827 return ret;
2828 }
2829
2830 static EGLBoolean
2831 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2832 EGLenum mode)
2833 {
2834 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2835 EGLint ret;
2836
2837 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2838 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2839 return EGL_FALSE;
2840 }
2841
2842 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2843 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2844 return EGL_FALSE;
2845 }
2846
2847 dri2_sync->base.SyncStatus = mode;
2848
2849 if (mode == EGL_SIGNALED_KHR) {
2850 ret = cnd_broadcast(&dri2_sync->cond);
2851
2852 /* fail to broadcast */
2853 if (ret) {
2854 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2855 return EGL_FALSE;
2856 }
2857 }
2858
2859 return EGL_TRUE;
2860 }
2861
2862 static EGLint
2863 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2864 {
2865 _EGLContext *ctx = _eglGetCurrentContext();
2866 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2867 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2868 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2869
2870 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2871 dri2_sync->fence, 0);
2872 return EGL_TRUE;
2873 }
2874
2875 static int
2876 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2877 struct mesa_glinterop_device_info *out)
2878 {
2879 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2880 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2881
2882 if (!dri2_dpy->interop)
2883 return MESA_GLINTEROP_UNSUPPORTED;
2884
2885 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2886 }
2887
2888 static int
2889 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2890 struct mesa_glinterop_export_in *in,
2891 struct mesa_glinterop_export_out *out)
2892 {
2893 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2894 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2895
2896 if (!dri2_dpy->interop)
2897 return MESA_GLINTEROP_UNSUPPORTED;
2898
2899 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2900 }
2901
2902 static void
2903 dri2_unload(_EGLDriver *drv)
2904 {
2905 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2906
2907 dlclose(dri2_drv->handle);
2908 free(dri2_drv);
2909 }
2910
2911 static EGLBoolean
2912 dri2_load(_EGLDriver *drv)
2913 {
2914 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2915 #ifdef HAVE_ANDROID_PLATFORM
2916 const char *libname = "libglapi.so";
2917 #elif defined(__APPLE__)
2918 const char *libname = "libglapi.0.dylib";
2919 #elif defined(__CYGWIN__)
2920 const char *libname = "cygglapi-0.dll";
2921 #else
2922 const char *libname = "libglapi.so.0";
2923 #endif
2924 void *handle;
2925
2926 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2927 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2928 if (!handle) {
2929 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
2930 goto no_handle;
2931 }
2932
2933 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2934 dlsym(handle, "_glapi_get_proc_address");
2935
2936 /* if glapi is not available, loading DRI drivers will fail */
2937 if (!dri2_drv->get_proc_address) {
2938 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2939 goto no_symbol;
2940 }
2941
2942 dri2_drv->glFlush = (void (*)(void))
2943 dri2_drv->get_proc_address("glFlush");
2944
2945 /* if glFlush is not available things are horribly broken */
2946 if (!dri2_drv->glFlush) {
2947 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
2948 goto no_symbol;
2949 }
2950
2951 dri2_drv->handle = handle;
2952 return EGL_TRUE;
2953
2954 no_symbol:
2955 dlclose(handle);
2956 no_handle:
2957 return EGL_FALSE;
2958 }
2959
2960 /**
2961 * This is the main entrypoint into the driver, called by libEGL.
2962 * Create a new _EGLDriver object and init its dispatch table.
2963 */
2964 _EGLDriver *
2965 _eglBuiltInDriverDRI2(const char *args)
2966 {
2967 struct dri2_egl_driver *dri2_drv;
2968
2969 (void) args;
2970
2971 dri2_drv = calloc(1, sizeof *dri2_drv);
2972 if (!dri2_drv)
2973 return NULL;
2974
2975 if (!dri2_load(&dri2_drv->base)) {
2976 free(dri2_drv);
2977 return NULL;
2978 }
2979
2980 _eglInitDriverFallbacks(&dri2_drv->base);
2981 dri2_drv->base.API.Initialize = dri2_initialize;
2982 dri2_drv->base.API.Terminate = dri2_terminate;
2983 dri2_drv->base.API.CreateContext = dri2_create_context;
2984 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2985 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2986 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2987 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2988 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2989 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2990 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2991 dri2_drv->base.API.WaitClient = dri2_wait_client;
2992 dri2_drv->base.API.WaitNative = dri2_wait_native;
2993 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2994 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2995 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2996 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2997 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2998 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2999 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
3000 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
3001 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
3002 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
3003 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
3004 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3005 dri2_drv->base.API.QuerySurface = dri2_query_surface;
3006 #ifdef HAVE_LIBDRM
3007 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3008 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3009 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3010 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3011 #endif
3012 #ifdef HAVE_WAYLAND_PLATFORM
3013 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3014 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3015 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3016 #endif
3017 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3018 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
3019 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
3020 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
3021 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
3022 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
3023 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3024 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
3025 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3026
3027 dri2_drv->base.Name = "DRI2";
3028 dri2_drv->base.Unload = dri2_unload;
3029
3030 return &dri2_drv->base;
3031 }