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egl/wayland: Avoid race conditions when on non-main thread
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include "GL/mesa_glinterop.h"
50 #include <sys/types.h>
51 #include <sys/stat.h>
52
53 #ifdef HAVE_WAYLAND_PLATFORM
54 #include "wayland-drm.h"
55 #include "wayland-drm-client-protocol.h"
56 #endif
57
58 #include "egl_dri2.h"
59 #include "loader/loader.h"
60 #include "util/u_atomic.h"
61
62 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
63 * some of the definitions here so that building Mesa won't bleeding-edge
64 * kernel headers.
65 */
66 #ifndef DRM_FORMAT_R8
67 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
68 #endif
69
70 #ifndef DRM_FORMAT_RG88
71 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
72 #endif
73
74 #ifndef DRM_FORMAT_GR88
75 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
76 #endif
77
78 const __DRIuseInvalidateExtension use_invalidate = {
79 .base = { __DRI_USE_INVALIDATE, 1 }
80 };
81
82 EGLint dri2_to_egl_attribute_map[] = {
83 0,
84 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
85 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
86 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
87 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
88 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
89 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
90 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
91 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
92 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
93 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
94 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
95 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
96 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
97 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
98 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
99 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
100 0, /* __DRI_ATTRIB_RENDER_TYPE, */
101 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
102 0, /* __DRI_ATTRIB_CONFORMANT */
103 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
104 0, /* __DRI_ATTRIB_STEREO */
105 0, /* __DRI_ATTRIB_AUX_BUFFERS */
106 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
108 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
109 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
110 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
111 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
112 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
113 0, /* __DRI_ATTRIB_RED_MASK */
114 0, /* __DRI_ATTRIB_GREEN_MASK */
115 0, /* __DRI_ATTRIB_BLUE_MASK */
116 0, /* __DRI_ATTRIB_ALPHA_MASK */
117 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
118 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
119 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
120 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
121 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
122 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
123 0, /* __DRI_ATTRIB_SWAP_METHOD */
124 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
125 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
126 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
127 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
128 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
129 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
130 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
131 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
132 };
133
134 const __DRIconfig *
135 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
136 EGLenum colorspace)
137 {
138 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
139
140 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
141 conf->dri_single_config[srgb];
142 }
143
144 static EGLBoolean
145 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
146 {
147 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
148 return EGL_FALSE;
149
150 if (!_eglMatchConfig(conf, criteria))
151 return EGL_FALSE;
152
153 return EGL_TRUE;
154 }
155
156 struct dri2_egl_config *
157 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
158 EGLint surface_type, const EGLint *attr_list,
159 const unsigned int *rgba_masks)
160 {
161 struct dri2_egl_config *conf;
162 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
163 _EGLConfig base;
164 unsigned int attrib, value, double_buffer;
165 bool srgb = false;
166 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
167 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
168 _EGLConfig *matching_config;
169 EGLint num_configs = 0;
170 EGLint config_id;
171 int i;
172
173 _eglInitConfig(&base, disp, id);
174
175 i = 0;
176 double_buffer = 0;
177 bind_to_texture_rgb = 0;
178 bind_to_texture_rgba = 0;
179
180 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
181 switch (attrib) {
182 case __DRI_ATTRIB_RENDER_TYPE:
183 if (value & __DRI_ATTRIB_RGBA_BIT)
184 value = EGL_RGB_BUFFER;
185 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
186 value = EGL_LUMINANCE_BUFFER;
187 else
188 return NULL;
189 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
190 break;
191
192 case __DRI_ATTRIB_CONFIG_CAVEAT:
193 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
194 value = EGL_NON_CONFORMANT_CONFIG;
195 else if (value & __DRI_ATTRIB_SLOW_BIT)
196 value = EGL_SLOW_CONFIG;
197 else
198 value = EGL_NONE;
199 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
200 break;
201
202 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
203 bind_to_texture_rgb = value;
204 break;
205
206 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
207 bind_to_texture_rgba = value;
208 break;
209
210 case __DRI_ATTRIB_DOUBLE_BUFFER:
211 double_buffer = value;
212 break;
213
214 case __DRI_ATTRIB_RED_MASK:
215 dri_masks[0] = value;
216 break;
217
218 case __DRI_ATTRIB_GREEN_MASK:
219 dri_masks[1] = value;
220 break;
221
222 case __DRI_ATTRIB_BLUE_MASK:
223 dri_masks[2] = value;
224 break;
225
226 case __DRI_ATTRIB_ALPHA_MASK:
227 dri_masks[3] = value;
228 break;
229
230 case __DRI_ATTRIB_ACCUM_RED_SIZE:
231 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
232 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
233 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
234 /* Don't expose visuals with the accumulation buffer. */
235 if (value > 0)
236 return NULL;
237 break;
238
239 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
240 srgb = value != 0;
241 if (!disp->Extensions.KHR_gl_colorspace && srgb)
242 return NULL;
243 break;
244
245 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
246 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
247 _EGL_MAX_PBUFFER_WIDTH);
248 break;
249 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
250 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
251 _EGL_MAX_PBUFFER_HEIGHT);
252 break;
253
254 default:
255 key = dri2_to_egl_attribute_map[attrib];
256 if (key != 0)
257 _eglSetConfigKey(&base, key, value);
258 break;
259 }
260 }
261
262 if (attr_list)
263 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
264 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
265
266 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
267 return NULL;
268
269 base.NativeRenderable = EGL_TRUE;
270
271 base.SurfaceType = surface_type;
272 if (surface_type & (EGL_PBUFFER_BIT |
273 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
274 base.BindToTextureRGB = bind_to_texture_rgb;
275 if (base.AlphaSize > 0)
276 base.BindToTextureRGBA = bind_to_texture_rgba;
277 }
278
279 base.RenderableType = disp->ClientAPIs;
280 base.Conformant = disp->ClientAPIs;
281
282 base.MinSwapInterval = dri2_dpy->min_swap_interval;
283 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
284
285 if (!_eglValidateConfig(&base, EGL_FALSE)) {
286 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
287 return NULL;
288 }
289
290 config_id = base.ConfigID;
291 base.ConfigID = EGL_DONT_CARE;
292 base.SurfaceType = EGL_DONT_CARE;
293 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
294 (_EGLArrayForEach) dri2_match_config, &base);
295
296 if (num_configs == 1) {
297 conf = (struct dri2_egl_config *) matching_config;
298
299 if (double_buffer && !conf->dri_double_config[srgb])
300 conf->dri_double_config[srgb] = dri_config;
301 else if (!double_buffer && !conf->dri_single_config[srgb])
302 conf->dri_single_config[srgb] = dri_config;
303 else
304 /* a similar config type is already added (unlikely) => discard */
305 return NULL;
306 }
307 else if (num_configs == 0) {
308 conf = calloc(1, sizeof *conf);
309 if (conf == NULL)
310 return NULL;
311
312 if (double_buffer)
313 conf->dri_double_config[srgb] = dri_config;
314 else
315 conf->dri_single_config[srgb] = dri_config;
316
317 memcpy(&conf->base, &base, sizeof base);
318 conf->base.SurfaceType = 0;
319 conf->base.ConfigID = config_id;
320
321 _eglLinkConfig(&conf->base);
322 }
323 else {
324 assert(0);
325 return NULL;
326 }
327
328 if (double_buffer) {
329 surface_type &= ~EGL_PIXMAP_BIT;
330 }
331
332 /* No support for pbuffer + MSAA for now.
333 *
334 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
335 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
336 */
337 if (base.Samples) {
338 surface_type &= ~EGL_PBUFFER_BIT;
339 }
340
341 conf->base.SurfaceType |= surface_type;
342
343 return conf;
344 }
345
346 __DRIimage *
347 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
348 {
349 _EGLDisplay *disp = data;
350 struct dri2_egl_image *dri2_img;
351 _EGLImage *img;
352
353 (void) screen;
354
355 img = _eglLookupImage(image, disp);
356 if (img == NULL) {
357 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
358 return NULL;
359 }
360
361 dri2_img = dri2_egl_image(image);
362
363 return dri2_img->dri_image;
364 }
365
366 const __DRIimageLookupExtension image_lookup_extension = {
367 .base = { __DRI_IMAGE_LOOKUP, 1 },
368
369 .lookupEGLImage = dri2_lookup_egl_image
370 };
371
372 struct dri2_extension_match {
373 const char *name;
374 int version;
375 int offset;
376 };
377
378 static const struct dri2_extension_match dri3_driver_extensions[] = {
379 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
380 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
381 { NULL, 0, 0 }
382 };
383
384 static const struct dri2_extension_match dri2_driver_extensions[] = {
385 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
386 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
387 { NULL, 0, 0 }
388 };
389
390 static const struct dri2_extension_match dri2_core_extensions[] = {
391 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
392 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
393 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
394 { NULL, 0, 0 }
395 };
396
397 static const struct dri2_extension_match swrast_driver_extensions[] = {
398 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
399 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
400 { NULL, 0, 0 }
401 };
402
403 static const struct dri2_extension_match swrast_core_extensions[] = {
404 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
405 { NULL, 0, 0 }
406 };
407
408 static const struct dri2_extension_match optional_core_extensions[] = {
409 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
410 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
411 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
412 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
413 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
414 { NULL, 0, 0 }
415 };
416
417 static EGLBoolean
418 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
419 const struct dri2_extension_match *matches,
420 const __DRIextension **extensions,
421 bool optional)
422 {
423 int i, j, ret = EGL_TRUE;
424 void *field;
425
426 for (i = 0; extensions[i]; i++) {
427 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
428 for (j = 0; matches[j].name; j++) {
429 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
430 extensions[i]->version >= matches[j].version) {
431 field = ((char *) dri2_dpy + matches[j].offset);
432 *(const __DRIextension **) field = extensions[i];
433 _eglLog(_EGL_INFO, "found extension %s version %d",
434 extensions[i]->name, extensions[i]->version);
435 break;
436 }
437 }
438 }
439
440 for (j = 0; matches[j].name; j++) {
441 field = ((char *) dri2_dpy + matches[j].offset);
442 if (*(const __DRIextension **) field == NULL) {
443 if (optional) {
444 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
445 matches[j].name, matches[j].version);
446 } else {
447 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
448 matches[j].name, matches[j].version);
449 ret = EGL_FALSE;
450 }
451 }
452 }
453
454 return ret;
455 }
456
457 static const __DRIextension **
458 dri2_open_driver(_EGLDisplay *disp)
459 {
460 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
461 const __DRIextension **extensions = NULL;
462 char path[PATH_MAX], *search_paths, *p, *next, *end;
463 char *get_extensions_name;
464 const __DRIextension **(*get_extensions)(void);
465
466 search_paths = NULL;
467 if (geteuid() == getuid()) {
468 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
469 search_paths = getenv("LIBGL_DRIVERS_PATH");
470 }
471 if (search_paths == NULL)
472 search_paths = DEFAULT_DRIVER_DIR;
473
474 dri2_dpy->driver = NULL;
475 end = search_paths + strlen(search_paths);
476 for (p = search_paths; p < end; p = next + 1) {
477 int len;
478 next = strchr(p, ':');
479 if (next == NULL)
480 next = end;
481
482 len = next - p;
483 #if GLX_USE_TLS
484 snprintf(path, sizeof path,
485 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
486 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
487 #endif
488 if (dri2_dpy->driver == NULL) {
489 snprintf(path, sizeof path,
490 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
491 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
492 if (dri2_dpy->driver == NULL)
493 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
494 }
495 /* not need continue to loop all paths once the driver is found */
496 if (dri2_dpy->driver != NULL)
497 break;
498
499 #ifdef ANDROID
500 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
501 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
502 if (dri2_dpy->driver == NULL)
503 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
504 else
505 break;
506 #endif
507 }
508
509 if (dri2_dpy->driver == NULL) {
510 _eglLog(_EGL_WARNING,
511 "DRI2: failed to open %s (search paths %s)",
512 dri2_dpy->driver_name, search_paths);
513 return NULL;
514 }
515
516 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
517
518 get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
519 if (get_extensions_name) {
520 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
521 if (get_extensions) {
522 extensions = get_extensions();
523 } else {
524 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
525 get_extensions_name, dlerror());
526 }
527 free(get_extensions_name);
528 }
529
530 if (!extensions)
531 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
532 if (extensions == NULL) {
533 _eglLog(_EGL_WARNING,
534 "DRI2: driver exports no extensions (%s)", dlerror());
535 dlclose(dri2_dpy->driver);
536 }
537
538 return extensions;
539 }
540
541 EGLBoolean
542 dri2_load_driver_dri3(_EGLDisplay *disp)
543 {
544 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
545 const __DRIextension **extensions;
546
547 extensions = dri2_open_driver(disp);
548 if (!extensions)
549 return EGL_FALSE;
550
551 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
552 dlclose(dri2_dpy->driver);
553 return EGL_FALSE;
554 }
555 dri2_dpy->driver_extensions = extensions;
556
557 return EGL_TRUE;
558 }
559
560 EGLBoolean
561 dri2_load_driver(_EGLDisplay *disp)
562 {
563 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
564 const __DRIextension **extensions;
565
566 extensions = dri2_open_driver(disp);
567 if (!extensions)
568 return EGL_FALSE;
569
570 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
571 dlclose(dri2_dpy->driver);
572 return EGL_FALSE;
573 }
574 dri2_dpy->driver_extensions = extensions;
575
576 return EGL_TRUE;
577 }
578
579 EGLBoolean
580 dri2_load_driver_swrast(_EGLDisplay *disp)
581 {
582 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
583 const __DRIextension **extensions;
584
585 extensions = dri2_open_driver(disp);
586 if (!extensions)
587 return EGL_FALSE;
588
589 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
590 dlclose(dri2_dpy->driver);
591 return EGL_FALSE;
592 }
593 dri2_dpy->driver_extensions = extensions;
594
595 return EGL_TRUE;
596 }
597
598 static unsigned
599 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
600 {
601 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
602 unsigned int value = 0;
603
604 if (!rendererQuery ||
605 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
606 return 0;
607
608 return value;
609 }
610
611 void
612 dri2_setup_screen(_EGLDisplay *disp)
613 {
614 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
615 unsigned int api_mask;
616
617 if (dri2_dpy->image_driver) {
618 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
619 } else if (dri2_dpy->dri2) {
620 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
621 } else {
622 assert(dri2_dpy->swrast);
623 api_mask = 1 << __DRI_API_OPENGL |
624 1 << __DRI_API_GLES |
625 1 << __DRI_API_GLES2 |
626 1 << __DRI_API_GLES3;
627 }
628
629 disp->ClientAPIs = 0;
630 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
631 disp->ClientAPIs |= EGL_OPENGL_BIT;
632 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
633 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
634 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
635 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
636 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
637 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
638
639 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
640 disp->Extensions.KHR_no_config_context = EGL_TRUE;
641 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
642
643 if (dri2_renderer_query_integer(dri2_dpy,
644 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
645 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
646
647 if (dri2_dpy->image_driver ||
648 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
649 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
650 disp->Extensions.KHR_create_context = EGL_TRUE;
651
652 if (dri2_dpy->robustness)
653 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
654 }
655
656 if (dri2_dpy->fence) {
657 disp->Extensions.KHR_fence_sync = EGL_TRUE;
658 disp->Extensions.KHR_wait_sync = EGL_TRUE;
659 if (dri2_dpy->fence->get_fence_from_cl_event)
660 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
661 if (dri2_dpy->fence->base.version >= 2) {
662 unsigned capabilities =
663 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
664 disp->Extensions.ANDROID_native_fence_sync =
665 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
666 }
667 }
668
669 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
670
671 if (dri2_dpy->image) {
672 if (dri2_dpy->image->base.version >= 10 &&
673 dri2_dpy->image->getCapabilities != NULL) {
674 int capabilities;
675
676 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
677 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
678
679 if (dri2_dpy->image->base.version >= 11)
680 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
681 } else {
682 disp->Extensions.MESA_drm_image = EGL_TRUE;
683 if (dri2_dpy->image->base.version >= 11)
684 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
685 }
686
687 disp->Extensions.KHR_image_base = EGL_TRUE;
688 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
689 if (dri2_dpy->image->base.version >= 5 &&
690 dri2_dpy->image->createImageFromTexture) {
691 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
692 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
693 }
694 if (dri2_renderer_query_integer(dri2_dpy,
695 __DRI2_RENDERER_HAS_TEXTURE_3D))
696 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
697 #ifdef HAVE_LIBDRM
698 if (dri2_dpy->image->base.version >= 8 &&
699 dri2_dpy->image->createImageFromDmaBufs) {
700 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
701 }
702 #endif
703 }
704 }
705
706 /* All platforms but DRM call this function to create the screen, query the
707 * dri extensions, setup the vtables and populate the driver_configs.
708 * DRM inherits all that information from its display - GBM.
709 */
710 EGLBoolean
711 dri2_create_screen(_EGLDisplay *disp)
712 {
713 const __DRIextension **extensions;
714 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
715
716 if (dri2_dpy->image_driver) {
717 dri2_dpy->dri_screen =
718 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
719 dri2_dpy->loader_extensions,
720 dri2_dpy->driver_extensions,
721 &dri2_dpy->driver_configs,
722 disp);
723 } else if (dri2_dpy->dri2) {
724 if (dri2_dpy->dri2->base.version >= 4) {
725 dri2_dpy->dri_screen =
726 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
727 dri2_dpy->loader_extensions,
728 dri2_dpy->driver_extensions,
729 &dri2_dpy->driver_configs, disp);
730 } else {
731 dri2_dpy->dri_screen =
732 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
733 dri2_dpy->loader_extensions,
734 &dri2_dpy->driver_configs, disp);
735 }
736 } else {
737 assert(dri2_dpy->swrast);
738 if (dri2_dpy->swrast->base.version >= 4) {
739 dri2_dpy->dri_screen =
740 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
741 dri2_dpy->driver_extensions,
742 &dri2_dpy->driver_configs, disp);
743 } else {
744 dri2_dpy->dri_screen =
745 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
746 &dri2_dpy->driver_configs, disp);
747 }
748 }
749
750 if (dri2_dpy->dri_screen == NULL) {
751 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
752 return EGL_FALSE;
753 }
754
755 dri2_dpy->own_dri_screen = 1;
756
757 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
758
759 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
760 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions, false))
761 goto cleanup_dri_screen;
762 } else {
763 assert(dri2_dpy->swrast);
764 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions, false))
765 goto cleanup_dri_screen;
766 }
767
768 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
769 dri2_setup_screen(disp);
770
771 return EGL_TRUE;
772
773 cleanup_dri_screen:
774 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
775
776 return EGL_FALSE;
777 }
778
779 /**
780 * Called via eglInitialize(), GLX_drv->API.Initialize().
781 *
782 * This must be guaranteed to be called exactly once, even if eglInitialize is
783 * called many times (without a eglTerminate in between).
784 */
785 static EGLBoolean
786 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
787 {
788 EGLBoolean ret = EGL_FALSE;
789 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
790
791 /* In the case where the application calls eglMakeCurrent(context1),
792 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
793 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
794 * initialized, as we need it to be able to free context1 correctly.
795 *
796 * It would probably be safest to forcibly release the display with
797 * dri2_display_release, to make sure the display is reinitialized correctly.
798 * However, the EGL spec states that we need to keep a reference to the
799 * current context (so we cannot call dri2_make_current(NULL)), and therefore
800 * we would leak context1 as we would be missing the old display connection
801 * to free it up correctly.
802 */
803 if (dri2_dpy) {
804 dri2_dpy->ref_count++;
805 return EGL_TRUE;
806 }
807
808 /* not until swrast_dri is supported */
809 if (disp->Options.UseFallback)
810 return EGL_FALSE;
811
812 /* Nothing to initialize for a test only display */
813 if (disp->Options.TestOnly)
814 return EGL_TRUE;
815
816 switch (disp->Platform) {
817 #ifdef HAVE_SURFACELESS_PLATFORM
818 case _EGL_PLATFORM_SURFACELESS:
819 ret = dri2_initialize_surfaceless(drv, disp);
820 break;
821 #endif
822 #ifdef HAVE_X11_PLATFORM
823 case _EGL_PLATFORM_X11:
824 ret = dri2_initialize_x11(drv, disp);
825 break;
826 #endif
827 #ifdef HAVE_DRM_PLATFORM
828 case _EGL_PLATFORM_DRM:
829 ret = dri2_initialize_drm(drv, disp);
830 break;
831 #endif
832 #ifdef HAVE_WAYLAND_PLATFORM
833 case _EGL_PLATFORM_WAYLAND:
834 ret = dri2_initialize_wayland(drv, disp);
835 break;
836 #endif
837 #ifdef HAVE_ANDROID_PLATFORM
838 case _EGL_PLATFORM_ANDROID:
839 ret = dri2_initialize_android(drv, disp);
840 break;
841 #endif
842 default:
843 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
844 return EGL_FALSE;
845 }
846
847 if (ret) {
848 dri2_dpy = dri2_egl_display(disp);
849
850 if (!dri2_dpy) {
851 return EGL_FALSE;
852 }
853
854 dri2_dpy->ref_count++;
855 }
856
857 return ret;
858 }
859
860 /**
861 * Decrement display reference count, and free up display if necessary.
862 */
863 static void
864 dri2_display_release(_EGLDisplay *disp)
865 {
866 struct dri2_egl_display *dri2_dpy;
867 unsigned i;
868
869 if (!disp)
870 return;
871
872 dri2_dpy = dri2_egl_display(disp);
873
874 assert(dri2_dpy->ref_count > 0);
875 dri2_dpy->ref_count--;
876
877 if (dri2_dpy->ref_count > 0)
878 return;
879
880 _eglCleanupDisplay(disp);
881
882 if (dri2_dpy->own_dri_screen)
883 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
884 if (dri2_dpy->fd >= 0)
885 close(dri2_dpy->fd);
886 if (dri2_dpy->driver)
887 dlclose(dri2_dpy->driver);
888 free(dri2_dpy->driver_name);
889
890 #ifdef HAVE_WAYLAND_PLATFORM
891 free(dri2_dpy->device_name);
892 #endif
893
894 switch (disp->Platform) {
895 #ifdef HAVE_X11_PLATFORM
896 case _EGL_PLATFORM_X11:
897 if (dri2_dpy->own_device) {
898 xcb_disconnect(dri2_dpy->conn);
899 }
900 break;
901 #endif
902 #ifdef HAVE_DRM_PLATFORM
903 case _EGL_PLATFORM_DRM:
904 if (dri2_dpy->own_device) {
905 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
906 }
907 break;
908 #endif
909 #ifdef HAVE_WAYLAND_PLATFORM
910 case _EGL_PLATFORM_WAYLAND:
911 if (dri2_dpy->wl_drm)
912 wl_drm_destroy(dri2_dpy->wl_drm);
913 if (dri2_dpy->wl_shm)
914 wl_shm_destroy(dri2_dpy->wl_shm);
915 wl_registry_destroy(dri2_dpy->wl_registry);
916 wl_event_queue_destroy(dri2_dpy->wl_queue);
917 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
918 if (dri2_dpy->own_device) {
919 wl_display_disconnect(dri2_dpy->wl_dpy);
920 }
921 break;
922 #endif
923 default:
924 break;
925 }
926
927 /* The drm platform does not create the screen/driver_configs but reuses
928 * the ones from the gbm device. As such the gbm itself is responsible
929 * for the cleanup.
930 */
931 if (disp->Platform != _EGL_PLATFORM_DRM) {
932 for (i = 0; dri2_dpy->driver_configs[i]; i++)
933 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
934 free(dri2_dpy->driver_configs);
935 }
936 free(dri2_dpy);
937 disp->DriverData = NULL;
938 }
939
940 /**
941 * Called via eglTerminate(), drv->API.Terminate().
942 *
943 * This must be guaranteed to be called exactly once, even if eglTerminate is
944 * called many times (without a eglInitialize in between).
945 */
946 static EGLBoolean
947 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
948 {
949 /* Release all non-current Context/Surfaces. */
950 _eglReleaseDisplayResources(drv, disp);
951
952 dri2_display_release(disp);
953
954 return EGL_TRUE;
955 }
956
957 /**
958 * Set the error code after a call to
959 * dri2_egl_display::dri2::createContextAttribs.
960 */
961 static void
962 dri2_create_context_attribs_error(int dri_error)
963 {
964 EGLint egl_error;
965
966 switch (dri_error) {
967 case __DRI_CTX_ERROR_SUCCESS:
968 return;
969
970 case __DRI_CTX_ERROR_NO_MEMORY:
971 egl_error = EGL_BAD_ALLOC;
972 break;
973
974 /* From the EGL_KHR_create_context spec, section "Errors":
975 *
976 * * If <config> does not support a client API context compatible
977 * with the requested API major and minor version, [...] context flags,
978 * and context reset notification behavior (for client API types where
979 * these attributes are supported), then an EGL_BAD_MATCH error is
980 * generated.
981 *
982 * * If an OpenGL ES context is requested and the values for
983 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
984 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
985 * is not defined, than an EGL_BAD_MATCH error is generated.
986 *
987 * * If an OpenGL context is requested, the requested version is
988 * greater than 3.2, and the value for attribute
989 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
990 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
991 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
992 * one of these bits set; or if the implementation does not support
993 * the requested profile, then an EGL_BAD_MATCH error is generated.
994 */
995 case __DRI_CTX_ERROR_BAD_API:
996 case __DRI_CTX_ERROR_BAD_VERSION:
997 case __DRI_CTX_ERROR_BAD_FLAG:
998 egl_error = EGL_BAD_MATCH;
999 break;
1000
1001 /* From the EGL_KHR_create_context spec, section "Errors":
1002 *
1003 * * If an attribute name or attribute value in <attrib_list> is not
1004 * recognized (including unrecognized bits in bitmask attributes),
1005 * then an EGL_BAD_ATTRIBUTE error is generated."
1006 */
1007 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1008 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1009 egl_error = EGL_BAD_ATTRIBUTE;
1010 break;
1011
1012 default:
1013 assert(0);
1014 egl_error = EGL_BAD_MATCH;
1015 break;
1016 }
1017
1018 _eglError(egl_error, "dri2_create_context");
1019 }
1020
1021 static bool
1022 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1023 struct dri2_egl_display *dri2_dpy,
1024 uint32_t *ctx_attribs,
1025 unsigned *num_attribs)
1026 {
1027 int pos = 0;
1028
1029 assert(*num_attribs >= 8);
1030
1031 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1032 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1033 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1034 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1035
1036 if (dri2_ctx->base.Flags != 0) {
1037 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1038 * extension, don't even try to send it the robust-access flag.
1039 * It may explode. Instead, generate the required EGL error here.
1040 */
1041 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1042 && !dri2_dpy->robustness) {
1043 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1044 return false;
1045 }
1046
1047 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1048 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1049 }
1050
1051 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1052 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1053 * extension, don't even try to send it a reset strategy. It may
1054 * explode. Instead, generate the required EGL error here.
1055 */
1056 if (!dri2_dpy->robustness) {
1057 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1058 return false;
1059 }
1060
1061 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1062 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1063 }
1064
1065 *num_attribs = pos;
1066
1067 return true;
1068 }
1069
1070 /**
1071 * Called via eglCreateContext(), drv->API.CreateContext().
1072 */
1073 static _EGLContext *
1074 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1075 _EGLContext *share_list, const EGLint *attrib_list)
1076 {
1077 struct dri2_egl_context *dri2_ctx;
1078 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1079 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1080 __DRIcontext *shared =
1081 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1082 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1083 const __DRIconfig *dri_config;
1084 int api;
1085
1086 (void) drv;
1087
1088 dri2_ctx = malloc(sizeof *dri2_ctx);
1089 if (!dri2_ctx) {
1090 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1091 return NULL;
1092 }
1093
1094 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1095 goto cleanup;
1096
1097 switch (dri2_ctx->base.ClientAPI) {
1098 case EGL_OPENGL_ES_API:
1099 switch (dri2_ctx->base.ClientMajorVersion) {
1100 case 1:
1101 api = __DRI_API_GLES;
1102 break;
1103 case 2:
1104 api = __DRI_API_GLES2;
1105 break;
1106 case 3:
1107 api = __DRI_API_GLES3;
1108 break;
1109 default:
1110 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1111 free(dri2_ctx);
1112 return NULL;
1113 }
1114 break;
1115 case EGL_OPENGL_API:
1116 if ((dri2_ctx->base.ClientMajorVersion >= 4
1117 || (dri2_ctx->base.ClientMajorVersion == 3
1118 && dri2_ctx->base.ClientMinorVersion >= 2))
1119 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1120 api = __DRI_API_OPENGL_CORE;
1121 else
1122 api = __DRI_API_OPENGL;
1123 break;
1124 default:
1125 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1126 free(dri2_ctx);
1127 return NULL;
1128 }
1129
1130 if (conf != NULL) {
1131 /* The config chosen here isn't necessarily
1132 * used for surfaces later.
1133 * A pixmap surface will use the single config.
1134 * This opportunity depends on disabling the
1135 * doubleBufferMode check in
1136 * src/mesa/main/context.c:check_compatible()
1137 */
1138 if (dri2_config->dri_double_config[0])
1139 dri_config = dri2_config->dri_double_config[0];
1140 else
1141 dri_config = dri2_config->dri_single_config[0];
1142
1143 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1144 * makes sure the back buffer will always be used.
1145 */
1146 if (conf->SurfaceType & EGL_WINDOW_BIT)
1147 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1148 }
1149 else
1150 dri_config = NULL;
1151
1152 if (dri2_dpy->image_driver) {
1153 unsigned error;
1154 unsigned num_attribs = 8;
1155 uint32_t ctx_attribs[8];
1156
1157 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1158 &num_attribs))
1159 goto cleanup;
1160
1161 dri2_ctx->dri_context =
1162 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1163 api,
1164 dri_config,
1165 shared,
1166 num_attribs / 2,
1167 ctx_attribs,
1168 & error,
1169 dri2_ctx);
1170 dri2_create_context_attribs_error(error);
1171 } else if (dri2_dpy->dri2) {
1172 if (dri2_dpy->dri2->base.version >= 3) {
1173 unsigned error;
1174 unsigned num_attribs = 8;
1175 uint32_t ctx_attribs[8];
1176
1177 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1178 &num_attribs))
1179 goto cleanup;
1180
1181 dri2_ctx->dri_context =
1182 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1183 api,
1184 dri_config,
1185 shared,
1186 num_attribs / 2,
1187 ctx_attribs,
1188 & error,
1189 dri2_ctx);
1190 dri2_create_context_attribs_error(error);
1191 } else {
1192 dri2_ctx->dri_context =
1193 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1194 api,
1195 dri_config,
1196 shared,
1197 dri2_ctx);
1198 }
1199 } else {
1200 assert(dri2_dpy->swrast);
1201 if (dri2_dpy->swrast->base.version >= 3) {
1202 unsigned error;
1203 unsigned num_attribs = 8;
1204 uint32_t ctx_attribs[8];
1205
1206 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1207 &num_attribs))
1208 goto cleanup;
1209
1210 dri2_ctx->dri_context =
1211 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1212 api,
1213 dri_config,
1214 shared,
1215 num_attribs / 2,
1216 ctx_attribs,
1217 & error,
1218 dri2_ctx);
1219 dri2_create_context_attribs_error(error);
1220 } else {
1221 dri2_ctx->dri_context =
1222 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1223 api,
1224 dri_config,
1225 shared,
1226 dri2_ctx);
1227 }
1228 }
1229
1230 if (!dri2_ctx->dri_context)
1231 goto cleanup;
1232
1233 return &dri2_ctx->base;
1234
1235 cleanup:
1236 free(dri2_ctx);
1237 return NULL;
1238 }
1239
1240 /**
1241 * Called via eglDestroyContext(), drv->API.DestroyContext().
1242 */
1243 static EGLBoolean
1244 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1245 {
1246 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1247 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1248
1249 if (_eglPutContext(ctx)) {
1250 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1251 free(dri2_ctx);
1252 }
1253
1254 return EGL_TRUE;
1255 }
1256
1257 static EGLBoolean
1258 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1259 {
1260 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1261
1262 if (!_eglPutSurface(surf))
1263 return EGL_TRUE;
1264
1265 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1266 }
1267
1268 /**
1269 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1270 */
1271 static EGLBoolean
1272 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1273 _EGLSurface *rsurf, _EGLContext *ctx)
1274 {
1275 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1276 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1277 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1278 _EGLContext *old_ctx;
1279 _EGLSurface *old_dsurf, *old_rsurf;
1280 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1281 __DRIdrawable *ddraw, *rdraw;
1282 __DRIcontext *cctx;
1283 EGLBoolean unbind;
1284
1285 if (!dri2_dpy)
1286 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1287
1288 /* make new bindings */
1289 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1290 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1291 return EGL_FALSE;
1292 }
1293
1294 /* flush before context switch */
1295 if (old_ctx)
1296 dri2_drv->glFlush();
1297
1298 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1299 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1300 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1301
1302 if (old_ctx) {
1303 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1304 dri2_dpy->core->unbindContext(old_cctx);
1305 }
1306
1307 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1308
1309 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1310 dri2_destroy_surface(drv, disp, old_dsurf);
1311 dri2_destroy_surface(drv, disp, old_rsurf);
1312
1313 if (!unbind)
1314 dri2_dpy->ref_count++;
1315 if (old_ctx) {
1316 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1317 dri2_destroy_context(drv, disp, old_ctx);
1318 dri2_display_release(old_disp);
1319 }
1320
1321 return EGL_TRUE;
1322 } else {
1323 /* undo the previous _eglBindContext */
1324 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1325 assert(&dri2_ctx->base == ctx &&
1326 tmp_dsurf == dsurf &&
1327 tmp_rsurf == rsurf);
1328
1329 _eglPutSurface(dsurf);
1330 _eglPutSurface(rsurf);
1331 _eglPutContext(ctx);
1332
1333 _eglPutSurface(old_dsurf);
1334 _eglPutSurface(old_rsurf);
1335 _eglPutContext(old_ctx);
1336
1337 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1338 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1339 * as EGL_SUCCESS.
1340 */
1341 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1342 }
1343 }
1344
1345 __DRIdrawable *
1346 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1347 {
1348 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1349
1350 return dri2_surf->dri_drawable;
1351 }
1352
1353 /*
1354 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1355 */
1356 static _EGLProc
1357 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1358 {
1359 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1360
1361 return dri2_drv->get_proc_address(procname);
1362 }
1363
1364 static _EGLSurface*
1365 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1366 _EGLConfig *conf, void *native_window,
1367 const EGLint *attrib_list)
1368 {
1369 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1370 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1371 attrib_list);
1372 }
1373
1374 static _EGLSurface*
1375 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1376 _EGLConfig *conf, void *native_pixmap,
1377 const EGLint *attrib_list)
1378 {
1379 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1380 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1381 attrib_list);
1382 }
1383
1384 static _EGLSurface*
1385 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1386 _EGLConfig *conf, const EGLint *attrib_list)
1387 {
1388 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1389 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1390 }
1391
1392 static EGLBoolean
1393 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1394 EGLint interval)
1395 {
1396 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1397 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1398 }
1399
1400 /**
1401 * Asks the client API to flush any rendering to the drawable so that we can
1402 * do our swapbuffers.
1403 */
1404 void
1405 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1406 {
1407 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1408 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1409
1410 if (dri2_dpy->flush) {
1411 if (dri2_dpy->flush->base.version >= 4) {
1412 /* We know there's a current context because:
1413 *
1414 * "If surface is not bound to the calling thread’s current
1415 * context, an EGL_BAD_SURFACE error is generated."
1416 */
1417 _EGLContext *ctx = _eglGetCurrentContext();
1418 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1419
1420 /* From the EGL 1.4 spec (page 52):
1421 *
1422 * "The contents of ancillary buffers are always undefined
1423 * after calling eglSwapBuffers."
1424 */
1425 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1426 dri_drawable,
1427 __DRI2_FLUSH_DRAWABLE |
1428 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1429 __DRI2_THROTTLE_SWAPBUFFER);
1430 } else {
1431 dri2_dpy->flush->flush(dri_drawable);
1432 }
1433 }
1434 }
1435
1436 static EGLBoolean
1437 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1438 {
1439 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1440 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1441 }
1442
1443 static EGLBoolean
1444 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1445 _EGLSurface *surf,
1446 const EGLint *rects, EGLint n_rects)
1447 {
1448 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1449 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1450 rects, n_rects);
1451 }
1452
1453 static EGLBoolean
1454 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1455 EGLint numRects, const EGLint *rects)
1456 {
1457 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1458 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1459 }
1460
1461 static EGLBoolean
1462 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1463 EGLint x, EGLint y, EGLint width, EGLint height)
1464 {
1465 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1466 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1467 }
1468
1469 static EGLBoolean
1470 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1471 void *native_pixmap_target)
1472 {
1473 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1474 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1475 }
1476
1477 static EGLint
1478 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1479 {
1480 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1481 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1482 }
1483
1484 static EGLBoolean
1485 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1486 {
1487 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1488 _EGLSurface *surf = ctx->DrawSurface;
1489 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1490
1491 (void) drv;
1492
1493 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1494 * we need to copy fake to real here.*/
1495
1496 if (dri2_dpy->flush != NULL)
1497 dri2_dpy->flush->flush(dri_drawable);
1498
1499 return EGL_TRUE;
1500 }
1501
1502 static EGLBoolean
1503 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1504 {
1505 (void) drv;
1506 (void) disp;
1507
1508 if (engine != EGL_CORE_NATIVE_ENGINE)
1509 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1510 /* glXWaitX(); */
1511
1512 return EGL_TRUE;
1513 }
1514
1515 static EGLBoolean
1516 dri2_bind_tex_image(_EGLDriver *drv,
1517 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1518 {
1519 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1520 struct dri2_egl_context *dri2_ctx;
1521 _EGLContext *ctx;
1522 GLint format, target;
1523 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1524
1525 ctx = _eglGetCurrentContext();
1526 dri2_ctx = dri2_egl_context(ctx);
1527
1528 if (!_eglBindTexImage(drv, disp, surf, buffer))
1529 return EGL_FALSE;
1530
1531 switch (surf->TextureFormat) {
1532 case EGL_TEXTURE_RGB:
1533 format = __DRI_TEXTURE_FORMAT_RGB;
1534 break;
1535 case EGL_TEXTURE_RGBA:
1536 format = __DRI_TEXTURE_FORMAT_RGBA;
1537 break;
1538 default:
1539 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1540 format = __DRI_TEXTURE_FORMAT_RGBA;
1541 }
1542
1543 switch (surf->TextureTarget) {
1544 case EGL_TEXTURE_2D:
1545 target = GL_TEXTURE_2D;
1546 break;
1547 default:
1548 target = GL_TEXTURE_2D;
1549 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1550 }
1551
1552 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1553 target, format,
1554 dri_drawable);
1555
1556 return EGL_TRUE;
1557 }
1558
1559 static EGLBoolean
1560 dri2_release_tex_image(_EGLDriver *drv,
1561 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1562 {
1563 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1564 struct dri2_egl_context *dri2_ctx;
1565 _EGLContext *ctx;
1566 GLint target;
1567 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1568
1569 ctx = _eglGetCurrentContext();
1570 dri2_ctx = dri2_egl_context(ctx);
1571
1572 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1573 return EGL_FALSE;
1574
1575 switch (surf->TextureTarget) {
1576 case EGL_TEXTURE_2D:
1577 target = GL_TEXTURE_2D;
1578 break;
1579 default:
1580 assert(0);
1581 }
1582
1583 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1584 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1585 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1586 target,
1587 dri_drawable);
1588 }
1589
1590 return EGL_TRUE;
1591 }
1592
1593 static _EGLImage*
1594 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1595 EGLenum target, EGLClientBuffer buffer,
1596 const EGLint *attr_list)
1597 {
1598 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1599 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1600 attr_list);
1601 }
1602
1603 static _EGLImage *
1604 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1605 {
1606 struct dri2_egl_image *dri2_img;
1607
1608 if (dri_image == NULL) {
1609 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1610 return NULL;
1611 }
1612
1613 dri2_img = malloc(sizeof *dri2_img);
1614 if (!dri2_img) {
1615 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1616 return NULL;
1617 }
1618
1619 if (!_eglInitImage(&dri2_img->base, disp)) {
1620 free(dri2_img);
1621 return NULL;
1622 }
1623
1624 dri2_img->dri_image = dri_image;
1625
1626 return &dri2_img->base;
1627 }
1628
1629 static _EGLImage *
1630 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1631 EGLClientBuffer buffer,
1632 const EGLint *attr_list)
1633 {
1634 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1635 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1636 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1637 __DRIimage *dri_image;
1638
1639 if (renderbuffer == 0) {
1640 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1641 return EGL_NO_IMAGE_KHR;
1642 }
1643
1644 dri_image =
1645 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1646 renderbuffer, NULL);
1647
1648 return dri2_create_image_from_dri(disp, dri_image);
1649 }
1650
1651 #ifdef HAVE_WAYLAND_PLATFORM
1652
1653 /* This structure describes how a wl_buffer maps to one or more
1654 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1655 * offsets and strides of the planes in the buffer. This table maps a
1656 * wl_drm format code to a description of the planes in the buffer
1657 * that lets us create a __DRIimage for each of the planes. */
1658
1659 static const struct wl_drm_components_descriptor {
1660 uint32_t dri_components;
1661 EGLint components;
1662 int nplanes;
1663 } wl_drm_components[] = {
1664 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1665 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1666 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1667 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1668 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1669 };
1670
1671 static _EGLImage *
1672 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1673 EGLClientBuffer _buffer,
1674 const EGLint *attr_list)
1675 {
1676 struct wl_drm_buffer *buffer;
1677 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1678 const struct wl_drm_components_descriptor *f;
1679 __DRIimage *dri_image;
1680 _EGLImageAttribs attrs;
1681 EGLint err;
1682 int32_t plane;
1683
1684 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1685 (struct wl_resource *) _buffer);
1686 if (!buffer)
1687 return NULL;
1688
1689 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1690 plane = attrs.PlaneWL;
1691 if (err != EGL_SUCCESS) {
1692 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1693 return NULL;
1694 }
1695
1696 f = buffer->driver_format;
1697 if (plane < 0 || plane >= f->nplanes) {
1698 _eglError(EGL_BAD_PARAMETER,
1699 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1700 return NULL;
1701 }
1702
1703 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1704
1705 if (dri_image == NULL) {
1706 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1707 return NULL;
1708 }
1709
1710 return dri2_create_image_from_dri(disp, dri_image);
1711 }
1712 #endif
1713
1714 static EGLBoolean
1715 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1716 EGLuint64KHR *ust, EGLuint64KHR *msc,
1717 EGLuint64KHR *sbc)
1718 {
1719 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1720 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1721 }
1722
1723 /**
1724 * Set the error code after a call to
1725 * dri2_egl_image::dri_image::createImageFromTexture.
1726 */
1727 static void
1728 dri2_create_image_khr_texture_error(int dri_error)
1729 {
1730 EGLint egl_error;
1731
1732 switch (dri_error) {
1733 case __DRI_IMAGE_ERROR_SUCCESS:
1734 return;
1735
1736 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1737 egl_error = EGL_BAD_ALLOC;
1738 break;
1739
1740 case __DRI_IMAGE_ERROR_BAD_MATCH:
1741 egl_error = EGL_BAD_MATCH;
1742 break;
1743
1744 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1745 egl_error = EGL_BAD_PARAMETER;
1746 break;
1747
1748 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1749 egl_error = EGL_BAD_ACCESS;
1750 break;
1751
1752 default:
1753 assert(0);
1754 egl_error = EGL_BAD_MATCH;
1755 break;
1756 }
1757
1758 _eglError(egl_error, "dri2_create_image_khr_texture");
1759 }
1760
1761 static _EGLImage *
1762 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1763 EGLenum target,
1764 EGLClientBuffer buffer,
1765 const EGLint *attr_list)
1766 {
1767 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1768 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1769 struct dri2_egl_image *dri2_img;
1770 GLuint texture = (GLuint) (uintptr_t) buffer;
1771 _EGLImageAttribs attrs;
1772 GLuint depth;
1773 GLenum gl_target;
1774 unsigned error;
1775
1776 if (texture == 0) {
1777 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1778 return EGL_NO_IMAGE_KHR;
1779 }
1780
1781 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1782 return EGL_NO_IMAGE_KHR;
1783
1784 switch (target) {
1785 case EGL_GL_TEXTURE_2D_KHR:
1786 depth = 0;
1787 gl_target = GL_TEXTURE_2D;
1788 break;
1789 case EGL_GL_TEXTURE_3D_KHR:
1790 if (disp->Extensions.KHR_gl_texture_3D_image) {
1791 depth = attrs.GLTextureZOffset;
1792 gl_target = GL_TEXTURE_3D;
1793 break;
1794 }
1795 else {
1796 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1797 return EGL_NO_IMAGE_KHR;
1798 }
1799 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1800 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1801 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1802 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1803 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1804 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1805 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1806 gl_target = GL_TEXTURE_CUBE_MAP;
1807 break;
1808 default:
1809 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1810 return EGL_NO_IMAGE_KHR;
1811 }
1812
1813 dri2_img = malloc(sizeof *dri2_img);
1814 if (!dri2_img) {
1815 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1816 return EGL_NO_IMAGE_KHR;
1817 }
1818
1819 if (!_eglInitImage(&dri2_img->base, disp)) {
1820 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1821 free(dri2_img);
1822 return EGL_NO_IMAGE_KHR;
1823 }
1824
1825 dri2_img->dri_image =
1826 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1827 gl_target,
1828 texture,
1829 depth,
1830 attrs.GLTextureLevel,
1831 &error,
1832 dri2_img);
1833 dri2_create_image_khr_texture_error(error);
1834
1835 if (!dri2_img->dri_image) {
1836 free(dri2_img);
1837 return EGL_NO_IMAGE_KHR;
1838 }
1839 return &dri2_img->base;
1840 }
1841
1842 static EGLBoolean
1843 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1844 EGLint attribute, EGLint *value)
1845 {
1846 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1847 if (!dri2_dpy->vtbl->query_surface)
1848 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1849 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1850 }
1851
1852 static struct wl_buffer*
1853 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1854 _EGLImage *img)
1855 {
1856 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1857 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1858 }
1859
1860 #ifdef HAVE_LIBDRM
1861 static _EGLImage *
1862 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1863 EGLClientBuffer buffer, const EGLint *attr_list)
1864 {
1865 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1866 EGLint format, name, pitch, err;
1867 _EGLImageAttribs attrs;
1868 __DRIimage *dri_image;
1869
1870 name = (EGLint) (uintptr_t) buffer;
1871
1872 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1873 if (err != EGL_SUCCESS)
1874 return NULL;
1875
1876 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1877 attrs.DRMBufferStrideMESA <= 0) {
1878 _eglError(EGL_BAD_PARAMETER,
1879 "bad width, height or stride");
1880 return NULL;
1881 }
1882
1883 switch (attrs.DRMBufferFormatMESA) {
1884 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1885 format = __DRI_IMAGE_FORMAT_ARGB8888;
1886 pitch = attrs.DRMBufferStrideMESA;
1887 break;
1888 default:
1889 _eglError(EGL_BAD_PARAMETER,
1890 "dri2_create_image_khr: unsupported pixmap depth");
1891 return NULL;
1892 }
1893
1894 dri_image =
1895 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1896 attrs.Width,
1897 attrs.Height,
1898 format,
1899 name,
1900 pitch,
1901 NULL);
1902
1903 return dri2_create_image_from_dri(disp, dri_image);
1904 }
1905
1906 static EGLBoolean
1907 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1908 {
1909 unsigned i;
1910
1911 /**
1912 * The spec says:
1913 *
1914 * "Required attributes and their values are as follows:
1915 *
1916 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1917 *
1918 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1919 * by drm_fourcc.h and used as the pixel_format parameter of the
1920 * drm_mode_fb_cmd2 ioctl."
1921 *
1922 * and
1923 *
1924 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1925 * incomplete, EGL_BAD_PARAMETER is generated."
1926 */
1927 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1928 !attrs->DMABufFourCC.IsPresent) {
1929 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1930 return EGL_FALSE;
1931 }
1932
1933 /**
1934 * Also:
1935 *
1936 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1937 * specified for a plane's pitch or offset isn't supported by EGL,
1938 * EGL_BAD_ACCESS is generated."
1939 */
1940 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1941 if (attrs->DMABufPlanePitches[i].IsPresent &&
1942 attrs->DMABufPlanePitches[i].Value <= 0) {
1943 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1944 return EGL_FALSE;
1945 }
1946 }
1947
1948 return EGL_TRUE;
1949 }
1950
1951 /* Returns the total number of file descriptors. Zero indicates an error. */
1952 static unsigned
1953 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1954 {
1955 unsigned i, plane_n;
1956
1957 switch (attrs->DMABufFourCC.Value) {
1958 case DRM_FORMAT_R8:
1959 case DRM_FORMAT_RG88:
1960 case DRM_FORMAT_GR88:
1961 case DRM_FORMAT_RGB332:
1962 case DRM_FORMAT_BGR233:
1963 case DRM_FORMAT_XRGB4444:
1964 case DRM_FORMAT_XBGR4444:
1965 case DRM_FORMAT_RGBX4444:
1966 case DRM_FORMAT_BGRX4444:
1967 case DRM_FORMAT_ARGB4444:
1968 case DRM_FORMAT_ABGR4444:
1969 case DRM_FORMAT_RGBA4444:
1970 case DRM_FORMAT_BGRA4444:
1971 case DRM_FORMAT_XRGB1555:
1972 case DRM_FORMAT_XBGR1555:
1973 case DRM_FORMAT_RGBX5551:
1974 case DRM_FORMAT_BGRX5551:
1975 case DRM_FORMAT_ARGB1555:
1976 case DRM_FORMAT_ABGR1555:
1977 case DRM_FORMAT_RGBA5551:
1978 case DRM_FORMAT_BGRA5551:
1979 case DRM_FORMAT_RGB565:
1980 case DRM_FORMAT_BGR565:
1981 case DRM_FORMAT_RGB888:
1982 case DRM_FORMAT_BGR888:
1983 case DRM_FORMAT_XRGB8888:
1984 case DRM_FORMAT_XBGR8888:
1985 case DRM_FORMAT_RGBX8888:
1986 case DRM_FORMAT_BGRX8888:
1987 case DRM_FORMAT_ARGB8888:
1988 case DRM_FORMAT_ABGR8888:
1989 case DRM_FORMAT_RGBA8888:
1990 case DRM_FORMAT_BGRA8888:
1991 case DRM_FORMAT_XRGB2101010:
1992 case DRM_FORMAT_XBGR2101010:
1993 case DRM_FORMAT_RGBX1010102:
1994 case DRM_FORMAT_BGRX1010102:
1995 case DRM_FORMAT_ARGB2101010:
1996 case DRM_FORMAT_ABGR2101010:
1997 case DRM_FORMAT_RGBA1010102:
1998 case DRM_FORMAT_BGRA1010102:
1999 case DRM_FORMAT_YUYV:
2000 case DRM_FORMAT_YVYU:
2001 case DRM_FORMAT_UYVY:
2002 case DRM_FORMAT_VYUY:
2003 plane_n = 1;
2004 break;
2005 case DRM_FORMAT_NV12:
2006 case DRM_FORMAT_NV21:
2007 case DRM_FORMAT_NV16:
2008 case DRM_FORMAT_NV61:
2009 plane_n = 2;
2010 break;
2011 case DRM_FORMAT_YUV410:
2012 case DRM_FORMAT_YVU410:
2013 case DRM_FORMAT_YUV411:
2014 case DRM_FORMAT_YVU411:
2015 case DRM_FORMAT_YUV420:
2016 case DRM_FORMAT_YVU420:
2017 case DRM_FORMAT_YUV422:
2018 case DRM_FORMAT_YVU422:
2019 case DRM_FORMAT_YUV444:
2020 case DRM_FORMAT_YVU444:
2021 plane_n = 3;
2022 break;
2023 default:
2024 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2025 return 0;
2026 }
2027
2028 /**
2029 * The spec says:
2030 *
2031 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2032 * incomplete, EGL_BAD_PARAMETER is generated."
2033 */
2034 for (i = 0; i < plane_n; ++i) {
2035 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2036 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2037 !attrs->DMABufPlanePitches[i].IsPresent) {
2038 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2039 return 0;
2040 }
2041 }
2042
2043 /**
2044 * The spec also says:
2045 *
2046 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2047 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2048 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2049 * attributes are specified."
2050 */
2051 for (i = plane_n; i < 3; ++i) {
2052 if (attrs->DMABufPlaneFds[i].IsPresent ||
2053 attrs->DMABufPlaneOffsets[i].IsPresent ||
2054 attrs->DMABufPlanePitches[i].IsPresent) {
2055 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2056 return 0;
2057 }
2058 }
2059
2060 return plane_n;
2061 }
2062
2063 /**
2064 * The spec says:
2065 *
2066 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2067 * EGL will take a reference to the dma_buf(s) which it will release at any
2068 * time while the EGLDisplay is initialized. It is the responsibility of the
2069 * application to close the dma_buf file descriptors."
2070 *
2071 * Therefore we must never close or otherwise modify the file descriptors.
2072 */
2073 _EGLImage *
2074 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2075 EGLClientBuffer buffer, const EGLint *attr_list)
2076 {
2077 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2078 _EGLImage *res;
2079 EGLint err;
2080 _EGLImageAttribs attrs;
2081 __DRIimage *dri_image;
2082 unsigned num_fds;
2083 unsigned i;
2084 int fds[3];
2085 int pitches[3];
2086 int offsets[3];
2087 unsigned error;
2088
2089 /**
2090 * The spec says:
2091 *
2092 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2093 * error EGL_BAD_PARAMETER is generated."
2094 */
2095 if (buffer != NULL) {
2096 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2097 return NULL;
2098 }
2099
2100 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2101 if (err != EGL_SUCCESS) {
2102 _eglError(err, "bad attribute");
2103 return NULL;
2104 }
2105
2106 if (!dri2_check_dma_buf_attribs(&attrs))
2107 return NULL;
2108
2109 num_fds = dri2_check_dma_buf_format(&attrs);
2110 if (!num_fds)
2111 return NULL;
2112
2113 for (i = 0; i < num_fds; ++i) {
2114 fds[i] = attrs.DMABufPlaneFds[i].Value;
2115 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2116 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2117 }
2118
2119 dri_image =
2120 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2121 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2122 fds, num_fds, pitches, offsets,
2123 attrs.DMABufYuvColorSpaceHint.Value,
2124 attrs.DMABufSampleRangeHint.Value,
2125 attrs.DMABufChromaHorizontalSiting.Value,
2126 attrs.DMABufChromaVerticalSiting.Value,
2127 &error,
2128 NULL);
2129 dri2_create_image_khr_texture_error(error);
2130
2131 if (!dri_image)
2132 return EGL_NO_IMAGE_KHR;
2133
2134 res = dri2_create_image_from_dri(disp, dri_image);
2135
2136 return res;
2137 }
2138 static _EGLImage *
2139 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2140 const EGLint *attr_list)
2141 {
2142 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2143 struct dri2_egl_image *dri2_img;
2144 _EGLImageAttribs attrs;
2145 unsigned int dri_use, valid_mask;
2146 int format;
2147 EGLint err = EGL_SUCCESS;
2148
2149 (void) drv;
2150
2151 dri2_img = malloc(sizeof *dri2_img);
2152 if (!dri2_img) {
2153 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2154 return EGL_NO_IMAGE_KHR;
2155 }
2156
2157 if (!attr_list) {
2158 err = EGL_BAD_PARAMETER;
2159 goto cleanup_img;
2160 }
2161
2162 if (!_eglInitImage(&dri2_img->base, disp)) {
2163 err = EGL_BAD_PARAMETER;
2164 goto cleanup_img;
2165 }
2166
2167 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2168 if (err != EGL_SUCCESS)
2169 goto cleanup_img;
2170
2171 if (attrs.Width <= 0 || attrs.Height <= 0) {
2172 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2173 attrs.Width, attrs.Height);
2174 goto cleanup_img;
2175 }
2176
2177 switch (attrs.DRMBufferFormatMESA) {
2178 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2179 format = __DRI_IMAGE_FORMAT_ARGB8888;
2180 break;
2181 default:
2182 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2183 attrs.DRMBufferFormatMESA);
2184 goto cleanup_img;
2185 }
2186
2187 valid_mask =
2188 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2189 EGL_DRM_BUFFER_USE_SHARE_MESA |
2190 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2191 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2192 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2193 attrs.DRMBufferUseMESA & ~valid_mask);
2194 goto cleanup_img;
2195 }
2196
2197 dri_use = 0;
2198 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2199 dri_use |= __DRI_IMAGE_USE_SHARE;
2200 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2201 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2202 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2203 dri_use |= __DRI_IMAGE_USE_CURSOR;
2204
2205 dri2_img->dri_image =
2206 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2207 attrs.Width, attrs.Height,
2208 format, dri_use, dri2_img);
2209 if (dri2_img->dri_image == NULL) {
2210 err = EGL_BAD_ALLOC;
2211 goto cleanup_img;
2212 }
2213
2214 return &dri2_img->base;
2215
2216 cleanup_img:
2217 free(dri2_img);
2218 _eglError(err, "dri2_create_drm_image_mesa");
2219
2220 return EGL_NO_IMAGE_KHR;
2221 }
2222
2223 static EGLBoolean
2224 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2225 EGLint *name, EGLint *handle, EGLint *stride)
2226 {
2227 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2228 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2229
2230 (void) drv;
2231
2232 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2233 __DRI_IMAGE_ATTRIB_NAME, name)) {
2234 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2235 return EGL_FALSE;
2236 }
2237
2238 if (handle)
2239 dri2_dpy->image->queryImage(dri2_img->dri_image,
2240 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2241
2242 if (stride)
2243 dri2_dpy->image->queryImage(dri2_img->dri_image,
2244 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2245
2246 return EGL_TRUE;
2247 }
2248
2249 static EGLBoolean
2250 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2251 _EGLImage *img,
2252 EGLint *fourcc, EGLint *nplanes,
2253 EGLuint64KHR *modifiers)
2254 {
2255 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2256 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2257
2258 (void) drv;
2259
2260
2261 if (nplanes)
2262 dri2_dpy->image->queryImage(dri2_img->dri_image,
2263 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2264 if (fourcc)
2265 dri2_dpy->image->queryImage(dri2_img->dri_image,
2266 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2267
2268 if (modifiers)
2269 *modifiers = 0;
2270
2271 return EGL_TRUE;
2272 }
2273
2274 static EGLBoolean
2275 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2276 int *fds, EGLint *strides, EGLint *offsets)
2277 {
2278 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2279 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2280
2281 (void) drv;
2282
2283 /* rework later to provide multiple fds/strides/offsets */
2284 if (fds)
2285 dri2_dpy->image->queryImage(dri2_img->dri_image,
2286 __DRI_IMAGE_ATTRIB_FD, fds);
2287
2288 if (strides)
2289 dri2_dpy->image->queryImage(dri2_img->dri_image,
2290 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2291
2292 if (offsets) {
2293 int img_offset;
2294 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2295 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2296 if (ret)
2297 offsets[0] = img_offset;
2298 else
2299 offsets[0] = 0;
2300 }
2301
2302 return EGL_TRUE;
2303 }
2304
2305 #endif
2306
2307 _EGLImage *
2308 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2309 _EGLContext *ctx, EGLenum target,
2310 EGLClientBuffer buffer, const EGLint *attr_list)
2311 {
2312 (void) drv;
2313
2314 switch (target) {
2315 case EGL_GL_TEXTURE_2D_KHR:
2316 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2317 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2318 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2319 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2320 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2321 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2322 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2323 case EGL_GL_TEXTURE_3D_KHR:
2324 if (disp->Extensions.KHR_gl_texture_3D_image) {
2325 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2326 }
2327 else {
2328 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2329 return EGL_NO_IMAGE_KHR;
2330 }
2331 case EGL_GL_RENDERBUFFER_KHR:
2332 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2333 #ifdef HAVE_LIBDRM
2334 case EGL_DRM_BUFFER_MESA:
2335 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2336 case EGL_LINUX_DMA_BUF_EXT:
2337 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2338 #endif
2339 #ifdef HAVE_WAYLAND_PLATFORM
2340 case EGL_WAYLAND_BUFFER_WL:
2341 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2342 #endif
2343 default:
2344 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2345 return EGL_NO_IMAGE_KHR;
2346 }
2347 }
2348
2349 static EGLBoolean
2350 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2351 {
2352 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2353 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2354
2355 (void) drv;
2356
2357 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2358 free(dri2_img);
2359
2360 return EGL_TRUE;
2361 }
2362
2363 #ifdef HAVE_WAYLAND_PLATFORM
2364
2365 static void
2366 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2367 struct wl_drm_buffer *buffer)
2368 {
2369 _EGLDisplay *disp = user_data;
2370 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2371 __DRIimage *img;
2372 int i, dri_components = 0;
2373
2374 if (fd == -1)
2375 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2376 buffer->width,
2377 buffer->height,
2378 buffer->format,
2379 (int*)&name, 1,
2380 buffer->stride,
2381 buffer->offset,
2382 NULL);
2383 else
2384 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2385 buffer->width,
2386 buffer->height,
2387 buffer->format,
2388 &fd, 1,
2389 buffer->stride,
2390 buffer->offset,
2391 NULL);
2392
2393 if (img == NULL)
2394 return;
2395
2396 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2397
2398 buffer->driver_format = NULL;
2399 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2400 if (wl_drm_components[i].dri_components == dri_components)
2401 buffer->driver_format = &wl_drm_components[i];
2402
2403 if (buffer->driver_format == NULL)
2404 dri2_dpy->image->destroyImage(img);
2405 else
2406 buffer->driver_buffer = img;
2407 }
2408
2409 static void
2410 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2411 {
2412 _EGLDisplay *disp = user_data;
2413 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2414
2415 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2416 }
2417
2418 static struct wayland_drm_callbacks wl_drm_callbacks = {
2419 .authenticate = NULL,
2420 .reference_buffer = dri2_wl_reference_buffer,
2421 .release_buffer = dri2_wl_release_buffer
2422 };
2423
2424 static EGLBoolean
2425 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2426 struct wl_display *wl_dpy)
2427 {
2428 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2429 int flags = 0;
2430 uint64_t cap;
2431
2432 (void) drv;
2433
2434 if (dri2_dpy->wl_server_drm)
2435 return EGL_FALSE;
2436
2437 wl_drm_callbacks.authenticate =
2438 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2439
2440 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2441 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2442 dri2_dpy->image->base.version >= 7 &&
2443 dri2_dpy->image->createImageFromFds != NULL)
2444 flags |= WAYLAND_DRM_PRIME;
2445
2446 dri2_dpy->wl_server_drm =
2447 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2448 &wl_drm_callbacks, disp, flags);
2449
2450 if (!dri2_dpy->wl_server_drm)
2451 return EGL_FALSE;
2452
2453 #ifdef HAVE_DRM_PLATFORM
2454 /* We have to share the wl_drm instance with gbm, so gbm can convert
2455 * wl_buffers to gbm bos. */
2456 if (dri2_dpy->gbm_dri)
2457 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2458 #endif
2459
2460 return EGL_TRUE;
2461 }
2462
2463 static EGLBoolean
2464 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2465 struct wl_display *wl_dpy)
2466 {
2467 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2468
2469 (void) drv;
2470
2471 if (!dri2_dpy->wl_server_drm)
2472 return EGL_FALSE;
2473
2474 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2475 dri2_dpy->wl_server_drm = NULL;
2476
2477 return EGL_TRUE;
2478 }
2479
2480 static EGLBoolean
2481 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2482 struct wl_resource *buffer_resource,
2483 EGLint attribute, EGLint *value)
2484 {
2485 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2486 struct wl_drm_buffer *buffer;
2487 const struct wl_drm_components_descriptor *format;
2488
2489 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2490 if (!buffer)
2491 return EGL_FALSE;
2492
2493 format = buffer->driver_format;
2494 switch (attribute) {
2495 case EGL_TEXTURE_FORMAT:
2496 *value = format->components;
2497 return EGL_TRUE;
2498 case EGL_WIDTH:
2499 *value = buffer->width;
2500 return EGL_TRUE;
2501 case EGL_HEIGHT:
2502 *value = buffer->height;
2503 return EGL_TRUE;
2504 }
2505
2506 return EGL_FALSE;
2507 }
2508 #endif
2509
2510 static void
2511 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2512 {
2513 p_atomic_inc(&sync->refcount);
2514 }
2515
2516 static void
2517 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2518 struct dri2_egl_sync *dri2_sync)
2519 {
2520 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2521 switch (dri2_sync->base.Type) {
2522 case EGL_SYNC_REUSABLE_KHR:
2523 cnd_destroy(&dri2_sync->cond);
2524 break;
2525 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2526 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2527 close(dri2_sync->base.SyncFd);
2528 break;
2529 default:
2530 break;
2531 }
2532
2533 if (dri2_sync->fence)
2534 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2535
2536 free(dri2_sync);
2537 }
2538 }
2539
2540 static _EGLSync *
2541 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2542 EGLenum type, const EGLAttrib *attrib_list)
2543 {
2544 _EGLContext *ctx = _eglGetCurrentContext();
2545 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2546 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2547 struct dri2_egl_sync *dri2_sync;
2548 EGLint ret;
2549 pthread_condattr_t attr;
2550
2551 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2552 if (!dri2_sync) {
2553 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2554 return NULL;
2555 }
2556
2557 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2558 free(dri2_sync);
2559 return NULL;
2560 }
2561
2562 switch (type) {
2563 case EGL_SYNC_FENCE_KHR:
2564 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2565 if (!dri2_sync->fence) {
2566 /* Why did it fail? DRI doesn't return an error code, so we emit
2567 * a generic EGL error that doesn't communicate user error.
2568 */
2569 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2570 free(dri2_sync);
2571 return NULL;
2572 }
2573 break;
2574
2575 case EGL_SYNC_CL_EVENT_KHR:
2576 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2577 dri2_dpy->dri_screen,
2578 dri2_sync->base.CLEvent);
2579 /* this can only happen if the cl_event passed in is invalid. */
2580 if (!dri2_sync->fence) {
2581 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2582 free(dri2_sync);
2583 return NULL;
2584 }
2585
2586 /* the initial status must be "signaled" if the cl_event is signaled */
2587 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2588 dri2_sync->fence, 0, 0))
2589 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2590 break;
2591
2592 case EGL_SYNC_REUSABLE_KHR:
2593 /* intialize attr */
2594 ret = pthread_condattr_init(&attr);
2595
2596 if (ret) {
2597 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2598 free(dri2_sync);
2599 return NULL;
2600 }
2601
2602 /* change clock attribute to CLOCK_MONOTONIC */
2603 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2604
2605 if (ret) {
2606 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2607 free(dri2_sync);
2608 return NULL;
2609 }
2610
2611 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2612
2613 if (ret) {
2614 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2615 free(dri2_sync);
2616 return NULL;
2617 }
2618
2619 /* initial status of reusable sync must be "unsignaled" */
2620 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2621 break;
2622
2623 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2624 if (dri2_dpy->fence->create_fence_fd) {
2625 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2626 dri2_ctx->dri_context,
2627 dri2_sync->base.SyncFd);
2628 }
2629 if (!dri2_sync->fence) {
2630 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2631 free(dri2_sync);
2632 return NULL;
2633 }
2634 break;
2635 }
2636
2637 p_atomic_set(&dri2_sync->refcount, 1);
2638 return &dri2_sync->base;
2639 }
2640
2641 static EGLBoolean
2642 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2643 {
2644 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2645 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2646 EGLint ret = EGL_TRUE;
2647 EGLint err;
2648
2649 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2650 * then unlock all threads possibly blocked by the reusable sync before
2651 * destroying it.
2652 */
2653 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2654 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2655 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2656 /* unblock all threads currently blocked by sync */
2657 err = cnd_broadcast(&dri2_sync->cond);
2658
2659 if (err) {
2660 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2661 ret = EGL_FALSE;
2662 }
2663 }
2664
2665 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2666
2667 return ret;
2668 }
2669
2670 static EGLint
2671 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2672 {
2673 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2674 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2675
2676 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2677
2678 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2679 /* try to retrieve the actual native fence fd.. if rendering is
2680 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2681 */
2682 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2683 dri2_sync->fence);
2684 }
2685
2686 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2687 /* if native fence fd still not created, return an error: */
2688 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2689 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2690 }
2691
2692 return dup(sync->SyncFd);
2693 }
2694
2695 static EGLint
2696 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2697 EGLint flags, EGLTime timeout)
2698 {
2699 _EGLContext *ctx = _eglGetCurrentContext();
2700 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2701 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2702 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2703 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2704 unsigned wait_flags = 0;
2705
2706 /* timespecs for cnd_timedwait */
2707 struct timespec current;
2708 xtime expire;
2709
2710 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2711
2712 /* The EGL_KHR_fence_sync spec states:
2713 *
2714 * "If no context is current for the bound API,
2715 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2716 */
2717 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2718 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2719
2720 /* the sync object should take a reference while waiting */
2721 dri2_egl_ref_sync(dri2_sync);
2722
2723 switch (sync->Type) {
2724 case EGL_SYNC_FENCE_KHR:
2725 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2726 case EGL_SYNC_CL_EVENT_KHR:
2727 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2728 dri2_sync->fence, wait_flags,
2729 timeout))
2730 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2731 else
2732 ret = EGL_TIMEOUT_EXPIRED_KHR;
2733 break;
2734
2735 case EGL_SYNC_REUSABLE_KHR:
2736 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2737 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2738 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2739 dri2_drv->glFlush();
2740 }
2741
2742 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2743 if (timeout == EGL_FOREVER_KHR) {
2744 mtx_lock(&dri2_sync->mutex);
2745 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2746 mtx_unlock(&dri2_sync->mutex);
2747 } else {
2748 /* if reusable sync has not been yet signaled */
2749 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2750 clock_gettime(CLOCK_MONOTONIC, &current);
2751
2752 /* calculating when to expire */
2753 expire.nsec = timeout % 1000000000L;
2754 expire.sec = timeout / 1000000000L;
2755
2756 expire.nsec += current.tv_nsec;
2757 expire.sec += current.tv_sec;
2758
2759 /* expire.nsec now is a number between 0 and 1999999998 */
2760 if (expire.nsec > 999999999L) {
2761 expire.sec++;
2762 expire.nsec -= 1000000000L;
2763 }
2764
2765 mtx_lock(&dri2_sync->mutex);
2766 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2767 mtx_unlock(&dri2_sync->mutex);
2768
2769 if (ret == thrd_busy) {
2770 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2771 ret = EGL_TIMEOUT_EXPIRED_KHR;
2772 } else {
2773 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2774 ret = EGL_FALSE;
2775 }
2776 }
2777 }
2778 }
2779 break;
2780 }
2781 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2782
2783 return ret;
2784 }
2785
2786 static EGLBoolean
2787 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2788 EGLenum mode)
2789 {
2790 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2791 EGLint ret;
2792
2793 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2794 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2795 return EGL_FALSE;
2796 }
2797
2798 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2799 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2800 return EGL_FALSE;
2801 }
2802
2803 dri2_sync->base.SyncStatus = mode;
2804
2805 if (mode == EGL_SIGNALED_KHR) {
2806 ret = cnd_broadcast(&dri2_sync->cond);
2807
2808 /* fail to broadcast */
2809 if (ret) {
2810 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2811 return EGL_FALSE;
2812 }
2813 }
2814
2815 return EGL_TRUE;
2816 }
2817
2818 static EGLint
2819 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2820 {
2821 _EGLContext *ctx = _eglGetCurrentContext();
2822 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2823 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2824 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2825
2826 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2827 dri2_sync->fence, 0);
2828 return EGL_TRUE;
2829 }
2830
2831 static int
2832 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2833 struct mesa_glinterop_device_info *out)
2834 {
2835 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2836 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2837
2838 if (!dri2_dpy->interop)
2839 return MESA_GLINTEROP_UNSUPPORTED;
2840
2841 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2842 }
2843
2844 static int
2845 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2846 struct mesa_glinterop_export_in *in,
2847 struct mesa_glinterop_export_out *out)
2848 {
2849 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2850 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2851
2852 if (!dri2_dpy->interop)
2853 return MESA_GLINTEROP_UNSUPPORTED;
2854
2855 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2856 }
2857
2858 static void
2859 dri2_unload(_EGLDriver *drv)
2860 {
2861 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2862
2863 dlclose(dri2_drv->handle);
2864 free(dri2_drv);
2865 }
2866
2867 static EGLBoolean
2868 dri2_load(_EGLDriver *drv)
2869 {
2870 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2871 #ifdef HAVE_ANDROID_PLATFORM
2872 const char *libname = "libglapi.so";
2873 #elif defined(__APPLE__)
2874 const char *libname = "libglapi.0.dylib";
2875 #elif defined(__CYGWIN__)
2876 const char *libname = "cygglapi-0.dll";
2877 #else
2878 const char *libname = "libglapi.so.0";
2879 #endif
2880 void *handle;
2881
2882 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2883 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2884 if (!handle) {
2885 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
2886 goto no_handle;
2887 }
2888
2889 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2890 dlsym(handle, "_glapi_get_proc_address");
2891
2892 /* if glapi is not available, loading DRI drivers will fail */
2893 if (!dri2_drv->get_proc_address) {
2894 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2895 goto no_symbol;
2896 }
2897
2898 dri2_drv->glFlush = (void (*)(void))
2899 dri2_drv->get_proc_address("glFlush");
2900
2901 /* if glFlush is not available things are horribly broken */
2902 if (!dri2_drv->glFlush) {
2903 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
2904 goto no_symbol;
2905 }
2906
2907 dri2_drv->handle = handle;
2908 return EGL_TRUE;
2909
2910 no_symbol:
2911 dlclose(handle);
2912 no_handle:
2913 return EGL_FALSE;
2914 }
2915
2916 /**
2917 * This is the main entrypoint into the driver, called by libEGL.
2918 * Create a new _EGLDriver object and init its dispatch table.
2919 */
2920 _EGLDriver *
2921 _eglBuiltInDriverDRI2(const char *args)
2922 {
2923 struct dri2_egl_driver *dri2_drv;
2924
2925 (void) args;
2926
2927 dri2_drv = calloc(1, sizeof *dri2_drv);
2928 if (!dri2_drv)
2929 return NULL;
2930
2931 if (!dri2_load(&dri2_drv->base)) {
2932 free(dri2_drv);
2933 return NULL;
2934 }
2935
2936 _eglInitDriverFallbacks(&dri2_drv->base);
2937 dri2_drv->base.API.Initialize = dri2_initialize;
2938 dri2_drv->base.API.Terminate = dri2_terminate;
2939 dri2_drv->base.API.CreateContext = dri2_create_context;
2940 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2941 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2942 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2943 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2944 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2945 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2946 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2947 dri2_drv->base.API.WaitClient = dri2_wait_client;
2948 dri2_drv->base.API.WaitNative = dri2_wait_native;
2949 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2950 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2951 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2952 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2953 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2954 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2955 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2956 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2957 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2958 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2959 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2960 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2961 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2962 #ifdef HAVE_LIBDRM
2963 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2964 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2965 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2966 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2967 #endif
2968 #ifdef HAVE_WAYLAND_PLATFORM
2969 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2970 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2971 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2972 #endif
2973 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2974 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2975 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2976 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2977 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2978 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2979 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2980 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2981 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
2982
2983 dri2_drv->base.Name = "DRI2";
2984 dri2_drv->base.Unload = dri2_unload;
2985
2986 return &dri2_drv->base;
2987 }