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egl/dri2: check if the EGL API is valid before adding it to ClientAPIs
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include "GL/mesa_glinterop.h"
50 #include <sys/types.h>
51 #include <sys/stat.h>
52
53 #ifdef HAVE_WAYLAND_PLATFORM
54 #include "wayland-drm.h"
55 #include "wayland-drm-client-protocol.h"
56 #endif
57
58 #include "egl_dri2.h"
59 #include "util/u_atomic.h"
60
61 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
62 * some of the definitions here so that building Mesa won't bleeding-edge
63 * kernel headers.
64 */
65 #ifndef DRM_FORMAT_R8
66 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
67 #endif
68
69 #ifndef DRM_FORMAT_RG88
70 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
71 #endif
72
73 #ifndef DRM_FORMAT_GR88
74 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
75 #endif
76
77 const __DRIuseInvalidateExtension use_invalidate = {
78 .base = { __DRI_USE_INVALIDATE, 1 }
79 };
80
81 EGLint dri2_to_egl_attribute_map[] = {
82 0,
83 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
84 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
85 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
86 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
87 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
88 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
89 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
90 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
91 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
92 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
93 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
94 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
95 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
96 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
97 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
98 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
99 0, /* __DRI_ATTRIB_RENDER_TYPE, */
100 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
101 0, /* __DRI_ATTRIB_CONFORMANT */
102 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
103 0, /* __DRI_ATTRIB_STEREO */
104 0, /* __DRI_ATTRIB_AUX_BUFFERS */
105 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
106 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
108 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
109 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
110 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
111 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
112 0, /* __DRI_ATTRIB_RED_MASK */
113 0, /* __DRI_ATTRIB_GREEN_MASK */
114 0, /* __DRI_ATTRIB_BLUE_MASK */
115 0, /* __DRI_ATTRIB_ALPHA_MASK */
116 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
117 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
118 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
119 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
120 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
121 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
122 0, /* __DRI_ATTRIB_SWAP_METHOD */
123 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
124 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
125 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
126 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
127 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
128 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
129 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
130 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
131 };
132
133 const __DRIconfig *
134 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
135 EGLenum colorspace)
136 {
137 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
138
139 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
140 conf->dri_single_config[srgb];
141 }
142
143 static EGLBoolean
144 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
145 {
146 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
147 return EGL_FALSE;
148
149 if (!_eglMatchConfig(conf, criteria))
150 return EGL_FALSE;
151
152 return EGL_TRUE;
153 }
154
155 struct dri2_egl_config *
156 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
157 EGLint surface_type, const EGLint *attr_list,
158 const unsigned int *rgba_masks)
159 {
160 struct dri2_egl_config *conf;
161 struct dri2_egl_display *dri2_dpy;
162 _EGLConfig base;
163 unsigned int attrib, value, double_buffer;
164 bool srgb = false;
165 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
166 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
167 _EGLConfig *matching_config;
168 EGLint num_configs = 0;
169 EGLint config_id;
170 int i;
171
172 dri2_dpy = disp->DriverData;
173 _eglInitConfig(&base, disp, id);
174
175 i = 0;
176 double_buffer = 0;
177 bind_to_texture_rgb = 0;
178 bind_to_texture_rgba = 0;
179
180 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
181 switch (attrib) {
182 case __DRI_ATTRIB_RENDER_TYPE:
183 if (value & __DRI_ATTRIB_RGBA_BIT)
184 value = EGL_RGB_BUFFER;
185 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
186 value = EGL_LUMINANCE_BUFFER;
187 else
188 return NULL;
189 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
190 break;
191
192 case __DRI_ATTRIB_CONFIG_CAVEAT:
193 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
194 value = EGL_NON_CONFORMANT_CONFIG;
195 else if (value & __DRI_ATTRIB_SLOW_BIT)
196 value = EGL_SLOW_CONFIG;
197 else
198 value = EGL_NONE;
199 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
200 break;
201
202 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
203 bind_to_texture_rgb = value;
204 break;
205
206 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
207 bind_to_texture_rgba = value;
208 break;
209
210 case __DRI_ATTRIB_DOUBLE_BUFFER:
211 double_buffer = value;
212 break;
213
214 case __DRI_ATTRIB_RED_MASK:
215 dri_masks[0] = value;
216 break;
217
218 case __DRI_ATTRIB_GREEN_MASK:
219 dri_masks[1] = value;
220 break;
221
222 case __DRI_ATTRIB_BLUE_MASK:
223 dri_masks[2] = value;
224 break;
225
226 case __DRI_ATTRIB_ALPHA_MASK:
227 dri_masks[3] = value;
228 break;
229
230 case __DRI_ATTRIB_ACCUM_RED_SIZE:
231 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
232 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
233 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
234 /* Don't expose visuals with the accumulation buffer. */
235 if (value > 0)
236 return NULL;
237 break;
238
239 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
240 srgb = value != 0;
241 if (!disp->Extensions.KHR_gl_colorspace && srgb)
242 return NULL;
243 break;
244
245 default:
246 key = dri2_to_egl_attribute_map[attrib];
247 if (key != 0)
248 _eglSetConfigKey(&base, key, value);
249 break;
250 }
251 }
252
253 if (attr_list)
254 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
255 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
256
257 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
258 return NULL;
259
260 base.NativeRenderable = EGL_TRUE;
261
262 base.SurfaceType = surface_type;
263 if (surface_type & (EGL_PBUFFER_BIT |
264 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
265 base.BindToTextureRGB = bind_to_texture_rgb;
266 if (base.AlphaSize > 0)
267 base.BindToTextureRGBA = bind_to_texture_rgba;
268 }
269
270 base.RenderableType = disp->ClientAPIs;
271 base.Conformant = disp->ClientAPIs;
272
273 base.MinSwapInterval = dri2_dpy->min_swap_interval;
274 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
275
276 if (!_eglValidateConfig(&base, EGL_FALSE)) {
277 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
278 return NULL;
279 }
280
281 config_id = base.ConfigID;
282 base.ConfigID = EGL_DONT_CARE;
283 base.SurfaceType = EGL_DONT_CARE;
284 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
285 (_EGLArrayForEach) dri2_match_config, &base);
286
287 if (num_configs == 1) {
288 conf = (struct dri2_egl_config *) matching_config;
289
290 if (double_buffer && !conf->dri_double_config[srgb])
291 conf->dri_double_config[srgb] = dri_config;
292 else if (!double_buffer && !conf->dri_single_config[srgb])
293 conf->dri_single_config[srgb] = dri_config;
294 else
295 /* a similar config type is already added (unlikely) => discard */
296 return NULL;
297 }
298 else if (num_configs == 0) {
299 conf = calloc(1, sizeof *conf);
300 if (conf == NULL)
301 return NULL;
302
303 if (double_buffer)
304 conf->dri_double_config[srgb] = dri_config;
305 else
306 conf->dri_single_config[srgb] = dri_config;
307
308 memcpy(&conf->base, &base, sizeof base);
309 conf->base.SurfaceType = 0;
310 conf->base.ConfigID = config_id;
311
312 _eglLinkConfig(&conf->base);
313 }
314 else {
315 assert(0);
316 return NULL;
317 }
318
319 if (double_buffer) {
320 surface_type &= ~EGL_PIXMAP_BIT;
321 }
322
323 conf->base.SurfaceType |= surface_type;
324
325 return conf;
326 }
327
328 __DRIimage *
329 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
330 {
331 _EGLDisplay *disp = data;
332 struct dri2_egl_image *dri2_img;
333 _EGLImage *img;
334
335 (void) screen;
336
337 img = _eglLookupImage(image, disp);
338 if (img == NULL) {
339 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
340 return NULL;
341 }
342
343 dri2_img = dri2_egl_image(image);
344
345 return dri2_img->dri_image;
346 }
347
348 const __DRIimageLookupExtension image_lookup_extension = {
349 .base = { __DRI_IMAGE_LOOKUP, 1 },
350
351 .lookupEGLImage = dri2_lookup_egl_image
352 };
353
354 struct dri2_extension_match {
355 const char *name;
356 int version;
357 int offset;
358 };
359
360 static struct dri2_extension_match dri3_driver_extensions[] = {
361 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
362 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
363 { NULL, 0, 0 }
364 };
365
366 static struct dri2_extension_match dri2_driver_extensions[] = {
367 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
368 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
369 { NULL, 0, 0 }
370 };
371
372 static struct dri2_extension_match dri2_core_extensions[] = {
373 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
374 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
375 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
376 { NULL, 0, 0 }
377 };
378
379 static struct dri2_extension_match swrast_driver_extensions[] = {
380 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
381 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
382 { NULL, 0, 0 }
383 };
384
385 static struct dri2_extension_match swrast_core_extensions[] = {
386 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
387 { NULL, 0, 0 }
388 };
389
390 static EGLBoolean
391 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
392 struct dri2_extension_match *matches,
393 const __DRIextension **extensions)
394 {
395 int i, j, ret = EGL_TRUE;
396 void *field;
397
398 for (i = 0; extensions[i]; i++) {
399 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
400 for (j = 0; matches[j].name; j++) {
401 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
402 extensions[i]->version >= matches[j].version) {
403 field = ((char *) dri2_dpy + matches[j].offset);
404 *(const __DRIextension **) field = extensions[i];
405 _eglLog(_EGL_INFO, "found extension %s version %d",
406 extensions[i]->name, extensions[i]->version);
407 }
408 }
409 }
410
411 for (j = 0; matches[j].name; j++) {
412 field = ((char *) dri2_dpy + matches[j].offset);
413 if (*(const __DRIextension **) field == NULL) {
414 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
415 matches[j].name, matches[j].version);
416 ret = EGL_FALSE;
417 }
418 }
419
420 return ret;
421 }
422
423 static const __DRIextension **
424 dri2_open_driver(_EGLDisplay *disp)
425 {
426 struct dri2_egl_display *dri2_dpy = disp->DriverData;
427 const __DRIextension **extensions = NULL;
428 char path[PATH_MAX], *search_paths, *p, *next, *end;
429 char *get_extensions_name;
430 const __DRIextension **(*get_extensions)(void);
431
432 search_paths = NULL;
433 if (geteuid() == getuid()) {
434 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
435 search_paths = getenv("LIBGL_DRIVERS_PATH");
436 }
437 if (search_paths == NULL)
438 search_paths = DEFAULT_DRIVER_DIR;
439
440 dri2_dpy->driver = NULL;
441 end = search_paths + strlen(search_paths);
442 for (p = search_paths; p < end; p = next + 1) {
443 int len;
444 next = strchr(p, ':');
445 if (next == NULL)
446 next = end;
447
448 len = next - p;
449 #if GLX_USE_TLS
450 snprintf(path, sizeof path,
451 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
452 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
453 #endif
454 if (dri2_dpy->driver == NULL) {
455 snprintf(path, sizeof path,
456 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
457 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
458 if (dri2_dpy->driver == NULL)
459 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
460 }
461 /* not need continue to loop all paths once the driver is found */
462 if (dri2_dpy->driver != NULL)
463 break;
464
465 #ifdef ANDROID
466 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
467 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
468 if (dri2_dpy->driver == NULL)
469 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
470 else
471 break;
472 #endif
473 }
474
475 if (dri2_dpy->driver == NULL) {
476 _eglLog(_EGL_WARNING,
477 "DRI2: failed to open %s (search paths %s)",
478 dri2_dpy->driver_name, search_paths);
479 return NULL;
480 }
481
482 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
483
484 if (asprintf(&get_extensions_name, "%s_%s",
485 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
486 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
487 if (get_extensions) {
488 extensions = get_extensions();
489 } else {
490 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
491 get_extensions_name, dlerror());
492 }
493 free(get_extensions_name);
494 }
495
496 if (!extensions)
497 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
498 if (extensions == NULL) {
499 _eglLog(_EGL_WARNING,
500 "DRI2: driver exports no extensions (%s)", dlerror());
501 dlclose(dri2_dpy->driver);
502 }
503
504 return extensions;
505 }
506
507 EGLBoolean
508 dri2_load_driver_dri3(_EGLDisplay *disp)
509 {
510 struct dri2_egl_display *dri2_dpy = disp->DriverData;
511 const __DRIextension **extensions;
512
513 extensions = dri2_open_driver(disp);
514 if (!extensions)
515 return EGL_FALSE;
516
517 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions)) {
518 dlclose(dri2_dpy->driver);
519 return EGL_FALSE;
520 }
521 dri2_dpy->driver_extensions = extensions;
522
523 return EGL_TRUE;
524 }
525
526 EGLBoolean
527 dri2_load_driver(_EGLDisplay *disp)
528 {
529 struct dri2_egl_display *dri2_dpy = disp->DriverData;
530 const __DRIextension **extensions;
531
532 extensions = dri2_open_driver(disp);
533 if (!extensions)
534 return EGL_FALSE;
535
536 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
537 dlclose(dri2_dpy->driver);
538 return EGL_FALSE;
539 }
540 dri2_dpy->driver_extensions = extensions;
541
542 return EGL_TRUE;
543 }
544
545 EGLBoolean
546 dri2_load_driver_swrast(_EGLDisplay *disp)
547 {
548 struct dri2_egl_display *dri2_dpy = disp->DriverData;
549 const __DRIextension **extensions;
550
551 extensions = dri2_open_driver(disp);
552 if (!extensions)
553 return EGL_FALSE;
554
555 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
556 dlclose(dri2_dpy->driver);
557 return EGL_FALSE;
558 }
559 dri2_dpy->driver_extensions = extensions;
560
561 return EGL_TRUE;
562 }
563
564 static unsigned
565 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
566 {
567 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
568 unsigned int value = 0;
569
570 if (!rendererQuery ||
571 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
572 return 0;
573
574 return value;
575 }
576
577 void
578 dri2_setup_screen(_EGLDisplay *disp)
579 {
580 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
581 unsigned int api_mask;
582
583 if (dri2_dpy->image_driver) {
584 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
585 } else if (dri2_dpy->dri2) {
586 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
587 } else {
588 assert(dri2_dpy->swrast);
589 api_mask = 1 << __DRI_API_OPENGL |
590 1 << __DRI_API_GLES |
591 1 << __DRI_API_GLES2 |
592 1 << __DRI_API_GLES3;
593 }
594
595 disp->ClientAPIs = 0;
596 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
597 disp->ClientAPIs |= EGL_OPENGL_BIT;
598 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
599 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
600 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
601 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
602 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
603 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
604
605 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
606 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
607 disp->Extensions.MESA_configless_context = EGL_TRUE;
608
609 if (dri2_renderer_query_integer(dri2_dpy,
610 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
611 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
612
613 if (dri2_dpy->image_driver ||
614 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
615 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
616 disp->Extensions.KHR_create_context = EGL_TRUE;
617
618 if (dri2_dpy->robustness)
619 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
620 }
621
622 if (dri2_dpy->fence) {
623 disp->Extensions.KHR_fence_sync = EGL_TRUE;
624 disp->Extensions.KHR_wait_sync = EGL_TRUE;
625 if (dri2_dpy->fence->get_fence_from_cl_event)
626 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
627 }
628
629 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
630
631 if (dri2_dpy->image) {
632 if (dri2_dpy->image->base.version >= 10 &&
633 dri2_dpy->image->getCapabilities != NULL) {
634 int capabilities;
635
636 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
637 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
638
639 if (dri2_dpy->image->base.version >= 11)
640 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
641 } else {
642 disp->Extensions.MESA_drm_image = EGL_TRUE;
643 if (dri2_dpy->image->base.version >= 11)
644 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
645 }
646
647 disp->Extensions.KHR_image_base = EGL_TRUE;
648 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
649 if (dri2_dpy->image->base.version >= 5 &&
650 dri2_dpy->image->createImageFromTexture) {
651 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
652 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
653 }
654 if (dri2_renderer_query_integer(dri2_dpy,
655 __DRI2_RENDERER_HAS_TEXTURE_3D))
656 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
657 #ifdef HAVE_LIBDRM
658 if (dri2_dpy->image->base.version >= 8 &&
659 dri2_dpy->image->createImageFromDmaBufs) {
660 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
661 }
662 #endif
663 }
664 }
665
666 /* All platforms but DRM call this function to create the screen, query the
667 * dri extensions, setup the vtables and populate the driver_configs.
668 * DRM inherits all that information from its display - GBM.
669 */
670 EGLBoolean
671 dri2_create_screen(_EGLDisplay *disp)
672 {
673 const __DRIextension **extensions;
674 struct dri2_egl_display *dri2_dpy;
675 unsigned i;
676
677 dri2_dpy = disp->DriverData;
678
679 if (dri2_dpy->image_driver) {
680 dri2_dpy->dri_screen =
681 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
682 dri2_dpy->extensions,
683 dri2_dpy->driver_extensions,
684 &dri2_dpy->driver_configs,
685 disp);
686 } else if (dri2_dpy->dri2) {
687 if (dri2_dpy->dri2->base.version >= 4) {
688 dri2_dpy->dri_screen =
689 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
690 dri2_dpy->extensions,
691 dri2_dpy->driver_extensions,
692 &dri2_dpy->driver_configs, disp);
693 } else {
694 dri2_dpy->dri_screen =
695 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
696 dri2_dpy->extensions,
697 &dri2_dpy->driver_configs, disp);
698 }
699 } else {
700 assert(dri2_dpy->swrast);
701 if (dri2_dpy->swrast->base.version >= 4) {
702 dri2_dpy->dri_screen =
703 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
704 dri2_dpy->driver_extensions,
705 &dri2_dpy->driver_configs, disp);
706 } else {
707 dri2_dpy->dri_screen =
708 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
709 &dri2_dpy->driver_configs, disp);
710 }
711 }
712
713 if (dri2_dpy->dri_screen == NULL) {
714 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
715 return EGL_FALSE;
716 }
717
718 dri2_dpy->own_dri_screen = 1;
719
720 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
721
722 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
723 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
724 goto cleanup_dri_screen;
725 } else {
726 assert(dri2_dpy->swrast);
727 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
728 goto cleanup_dri_screen;
729 }
730
731 for (i = 0; extensions[i]; i++) {
732 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
733 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
734 }
735 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
736 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
737 }
738 if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
739 dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
740 }
741 if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
742 dri2_dpy->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
743 }
744 if (strcmp(extensions[i]->name, __DRI2_INTEROP) == 0)
745 dri2_dpy->interop = (__DRI2interopExtension *) extensions[i];
746 }
747
748 dri2_setup_screen(disp);
749
750 return EGL_TRUE;
751
752 cleanup_dri_screen:
753 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
754
755 return EGL_FALSE;
756 }
757
758 /**
759 * Called via eglInitialize(), GLX_drv->API.Initialize().
760 *
761 * This must be guaranteed to be called exactly once, even if eglInitialize is
762 * called many times (without a eglTerminate in between).
763 */
764 static EGLBoolean
765 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
766 {
767 EGLBoolean ret = EGL_FALSE;
768 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
769
770 /* In the case where the application calls eglMakeCurrent(context1),
771 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
772 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
773 * initialized, as we need it to be able to free context1 correctly.
774 *
775 * It would probably be safest to forcibly release the display with
776 * dri2_display_release, to make sure the display is reinitialized correctly.
777 * However, the EGL spec states that we need to keep a reference to the
778 * current context (so we cannot call dri2_make_current(NULL)), and therefore
779 * we would leak context1 as we would be missing the old display connection
780 * to free it up correctly.
781 */
782 if (dri2_dpy) {
783 dri2_dpy->ref_count++;
784 return EGL_TRUE;
785 }
786
787 /* not until swrast_dri is supported */
788 if (disp->Options.UseFallback)
789 return EGL_FALSE;
790
791 /* Nothing to initialize for a test only display */
792 if (disp->Options.TestOnly)
793 return EGL_TRUE;
794
795 switch (disp->Platform) {
796 #ifdef HAVE_SURFACELESS_PLATFORM
797 case _EGL_PLATFORM_SURFACELESS:
798 ret = dri2_initialize_surfaceless(drv, disp);
799 break;
800 #endif
801 #ifdef HAVE_X11_PLATFORM
802 case _EGL_PLATFORM_X11:
803 ret = dri2_initialize_x11(drv, disp);
804 break;
805 #endif
806 #ifdef HAVE_DRM_PLATFORM
807 case _EGL_PLATFORM_DRM:
808 ret = dri2_initialize_drm(drv, disp);
809 break;
810 #endif
811 #ifdef HAVE_WAYLAND_PLATFORM
812 case _EGL_PLATFORM_WAYLAND:
813 ret = dri2_initialize_wayland(drv, disp);
814 break;
815 #endif
816 #ifdef HAVE_ANDROID_PLATFORM
817 case _EGL_PLATFORM_ANDROID:
818 ret = dri2_initialize_android(drv, disp);
819 break;
820 #endif
821 default:
822 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
823 return EGL_FALSE;
824 }
825
826 if (ret) {
827 dri2_dpy = dri2_egl_display(disp);
828
829 if (!dri2_dpy) {
830 return EGL_FALSE;
831 }
832
833 dri2_dpy->ref_count++;
834 }
835
836 return ret;
837 }
838
839 /**
840 * Decrement display reference count, and free up display if necessary.
841 */
842 static void
843 dri2_display_release(_EGLDisplay *disp) {
844 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
845 unsigned i;
846
847 assert(dri2_dpy->ref_count > 0);
848 dri2_dpy->ref_count--;
849
850 if (dri2_dpy->ref_count > 0)
851 return;
852
853 _eglCleanupDisplay(disp);
854
855 if (dri2_dpy->own_dri_screen)
856 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
857 if (dri2_dpy->fd >= 0)
858 close(dri2_dpy->fd);
859 if (dri2_dpy->driver)
860 dlclose(dri2_dpy->driver);
861 free(dri2_dpy->device_name);
862 free(dri2_dpy->driver_name);
863
864 switch (disp->Platform) {
865 #ifdef HAVE_X11_PLATFORM
866 case _EGL_PLATFORM_X11:
867 if (dri2_dpy->own_device) {
868 xcb_disconnect(dri2_dpy->conn);
869 }
870 break;
871 #endif
872 #ifdef HAVE_DRM_PLATFORM
873 case _EGL_PLATFORM_DRM:
874 if (dri2_dpy->own_device) {
875 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
876 }
877 break;
878 #endif
879 #ifdef HAVE_WAYLAND_PLATFORM
880 case _EGL_PLATFORM_WAYLAND:
881 if (dri2_dpy->wl_drm)
882 wl_drm_destroy(dri2_dpy->wl_drm);
883 if (dri2_dpy->wl_shm)
884 wl_shm_destroy(dri2_dpy->wl_shm);
885 wl_registry_destroy(dri2_dpy->wl_registry);
886 wl_event_queue_destroy(dri2_dpy->wl_queue);
887 if (dri2_dpy->own_device) {
888 wl_display_disconnect(dri2_dpy->wl_dpy);
889 }
890 break;
891 #endif
892 default:
893 break;
894 }
895
896 /* The drm platform does not create the screen/driver_configs but reuses
897 * the ones from the gbm device. As such the gbm itself is responsible
898 * for the cleanup.
899 */
900 if (disp->Platform != _EGL_PLATFORM_DRM) {
901 for (i = 0; dri2_dpy->driver_configs[i]; i++)
902 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
903 free(dri2_dpy->driver_configs);
904 }
905 free(dri2_dpy);
906 disp->DriverData = NULL;
907 }
908
909 /**
910 * Called via eglTerminate(), drv->API.Terminate().
911 *
912 * This must be guaranteed to be called exactly once, even if eglTerminate is
913 * called many times (without a eglInitialize in between).
914 */
915 static EGLBoolean
916 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
917 {
918 /* Release all non-current Context/Surfaces. */
919 _eglReleaseDisplayResources(drv, disp);
920
921 dri2_display_release(disp);
922
923 return EGL_TRUE;
924 }
925
926 /**
927 * Set the error code after a call to
928 * dri2_egl_display::dri2::createContextAttribs.
929 */
930 static void
931 dri2_create_context_attribs_error(int dri_error)
932 {
933 EGLint egl_error;
934
935 switch (dri_error) {
936 case __DRI_CTX_ERROR_SUCCESS:
937 return;
938
939 case __DRI_CTX_ERROR_NO_MEMORY:
940 egl_error = EGL_BAD_ALLOC;
941 break;
942
943 /* From the EGL_KHR_create_context spec, section "Errors":
944 *
945 * * If <config> does not support a client API context compatible
946 * with the requested API major and minor version, [...] context flags,
947 * and context reset notification behavior (for client API types where
948 * these attributes are supported), then an EGL_BAD_MATCH error is
949 * generated.
950 *
951 * * If an OpenGL ES context is requested and the values for
952 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
953 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
954 * is not defined, than an EGL_BAD_MATCH error is generated.
955 *
956 * * If an OpenGL context is requested, the requested version is
957 * greater than 3.2, and the value for attribute
958 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
959 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
960 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
961 * one of these bits set; or if the implementation does not support
962 * the requested profile, then an EGL_BAD_MATCH error is generated.
963 */
964 case __DRI_CTX_ERROR_BAD_API:
965 case __DRI_CTX_ERROR_BAD_VERSION:
966 case __DRI_CTX_ERROR_BAD_FLAG:
967 egl_error = EGL_BAD_MATCH;
968 break;
969
970 /* From the EGL_KHR_create_context spec, section "Errors":
971 *
972 * * If an attribute name or attribute value in <attrib_list> is not
973 * recognized (including unrecognized bits in bitmask attributes),
974 * then an EGL_BAD_ATTRIBUTE error is generated."
975 */
976 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
977 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
978 egl_error = EGL_BAD_ATTRIBUTE;
979 break;
980
981 default:
982 assert(0);
983 egl_error = EGL_BAD_MATCH;
984 break;
985 }
986
987 _eglError(egl_error, "dri2_create_context");
988 }
989
990 static bool
991 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
992 struct dri2_egl_display *dri2_dpy,
993 uint32_t *ctx_attribs,
994 unsigned *num_attribs)
995 {
996 int pos = 0;
997
998 assert(*num_attribs >= 8);
999
1000 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1001 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1002 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1003 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1004
1005 if (dri2_ctx->base.Flags != 0) {
1006 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1007 * extension, don't even try to send it the robust-access flag.
1008 * It may explode. Instead, generate the required EGL error here.
1009 */
1010 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1011 && !dri2_dpy->robustness) {
1012 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1013 return false;
1014 }
1015
1016 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1017 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1018 }
1019
1020 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1021 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1022 * extension, don't even try to send it a reset strategy. It may
1023 * explode. Instead, generate the required EGL error here.
1024 */
1025 if (!dri2_dpy->robustness) {
1026 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1027 return false;
1028 }
1029
1030 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1031 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1032 }
1033
1034 *num_attribs = pos;
1035
1036 return true;
1037 }
1038
1039 /**
1040 * Called via eglCreateContext(), drv->API.CreateContext().
1041 */
1042 static _EGLContext *
1043 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1044 _EGLContext *share_list, const EGLint *attrib_list)
1045 {
1046 struct dri2_egl_context *dri2_ctx;
1047 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1048 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1049 __DRIcontext *shared =
1050 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1051 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1052 const __DRIconfig *dri_config;
1053 int api;
1054
1055 (void) drv;
1056
1057 dri2_ctx = malloc(sizeof *dri2_ctx);
1058 if (!dri2_ctx) {
1059 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1060 return NULL;
1061 }
1062
1063 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1064 goto cleanup;
1065
1066 switch (dri2_ctx->base.ClientAPI) {
1067 case EGL_OPENGL_ES_API:
1068 switch (dri2_ctx->base.ClientMajorVersion) {
1069 case 1:
1070 api = __DRI_API_GLES;
1071 break;
1072 case 2:
1073 api = __DRI_API_GLES2;
1074 break;
1075 case 3:
1076 api = __DRI_API_GLES3;
1077 break;
1078 default:
1079 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1080 free(dri2_ctx);
1081 return NULL;
1082 }
1083 break;
1084 case EGL_OPENGL_API:
1085 if ((dri2_ctx->base.ClientMajorVersion >= 4
1086 || (dri2_ctx->base.ClientMajorVersion == 3
1087 && dri2_ctx->base.ClientMinorVersion >= 2))
1088 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1089 api = __DRI_API_OPENGL_CORE;
1090 else
1091 api = __DRI_API_OPENGL;
1092 break;
1093 default:
1094 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1095 free(dri2_ctx);
1096 return NULL;
1097 }
1098
1099 if (conf != NULL) {
1100 /* The config chosen here isn't necessarily
1101 * used for surfaces later.
1102 * A pixmap surface will use the single config.
1103 * This opportunity depends on disabling the
1104 * doubleBufferMode check in
1105 * src/mesa/main/context.c:check_compatible()
1106 */
1107 if (dri2_config->dri_double_config[0])
1108 dri_config = dri2_config->dri_double_config[0];
1109 else
1110 dri_config = dri2_config->dri_single_config[0];
1111
1112 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1113 * makes sure the back buffer will always be used.
1114 */
1115 if (conf->SurfaceType & EGL_WINDOW_BIT)
1116 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1117 }
1118 else
1119 dri_config = NULL;
1120
1121 if (dri2_dpy->image_driver) {
1122 unsigned error;
1123 unsigned num_attribs = 8;
1124 uint32_t ctx_attribs[8];
1125
1126 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1127 &num_attribs))
1128 goto cleanup;
1129
1130 dri2_ctx->dri_context =
1131 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1132 api,
1133 dri_config,
1134 shared,
1135 num_attribs / 2,
1136 ctx_attribs,
1137 & error,
1138 dri2_ctx);
1139 dri2_create_context_attribs_error(error);
1140 } else if (dri2_dpy->dri2) {
1141 if (dri2_dpy->dri2->base.version >= 3) {
1142 unsigned error;
1143 unsigned num_attribs = 8;
1144 uint32_t ctx_attribs[8];
1145
1146 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1147 &num_attribs))
1148 goto cleanup;
1149
1150 dri2_ctx->dri_context =
1151 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1152 api,
1153 dri_config,
1154 shared,
1155 num_attribs / 2,
1156 ctx_attribs,
1157 & error,
1158 dri2_ctx);
1159 dri2_create_context_attribs_error(error);
1160 } else {
1161 dri2_ctx->dri_context =
1162 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1163 api,
1164 dri_config,
1165 shared,
1166 dri2_ctx);
1167 }
1168 } else {
1169 assert(dri2_dpy->swrast);
1170 if (dri2_dpy->swrast->base.version >= 3) {
1171 unsigned error;
1172 unsigned num_attribs = 8;
1173 uint32_t ctx_attribs[8];
1174
1175 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1176 &num_attribs))
1177 goto cleanup;
1178
1179 dri2_ctx->dri_context =
1180 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1181 api,
1182 dri_config,
1183 shared,
1184 num_attribs / 2,
1185 ctx_attribs,
1186 & error,
1187 dri2_ctx);
1188 dri2_create_context_attribs_error(error);
1189 } else {
1190 dri2_ctx->dri_context =
1191 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1192 api,
1193 dri_config,
1194 shared,
1195 dri2_ctx);
1196 }
1197 }
1198
1199 if (!dri2_ctx->dri_context)
1200 goto cleanup;
1201
1202 return &dri2_ctx->base;
1203
1204 cleanup:
1205 free(dri2_ctx);
1206 return NULL;
1207 }
1208
1209 /**
1210 * Called via eglDestroyContext(), drv->API.DestroyContext().
1211 */
1212 static EGLBoolean
1213 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1214 {
1215 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1216 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1217
1218 if (_eglPutContext(ctx)) {
1219 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1220 free(dri2_ctx);
1221 }
1222
1223 return EGL_TRUE;
1224 }
1225
1226 /**
1227 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1228 */
1229 static EGLBoolean
1230 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1231 _EGLSurface *rsurf, _EGLContext *ctx)
1232 {
1233 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1234 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1235 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1236 _EGLContext *old_ctx;
1237 _EGLSurface *old_dsurf, *old_rsurf;
1238 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1239 __DRIdrawable *ddraw, *rdraw;
1240 __DRIcontext *cctx;
1241 EGLBoolean unbind;
1242
1243 if (!dri2_dpy)
1244 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1245
1246 /* make new bindings */
1247 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1248 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1249 return EGL_FALSE;
1250 }
1251
1252 /* flush before context switch */
1253 if (old_ctx && dri2_drv->glFlush)
1254 dri2_drv->glFlush();
1255
1256 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1257 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1258 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1259
1260 if (old_ctx) {
1261 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1262 dri2_dpy->core->unbindContext(old_cctx);
1263 }
1264
1265 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1266
1267 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1268 if (old_dsurf)
1269 drv->API.DestroySurface(drv, disp, old_dsurf);
1270 if (old_rsurf)
1271 drv->API.DestroySurface(drv, disp, old_rsurf);
1272
1273 if (!unbind)
1274 dri2_dpy->ref_count++;
1275 if (old_ctx) {
1276 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1277 drv->API.DestroyContext(drv, disp, old_ctx);
1278 dri2_display_release(old_disp);
1279 }
1280
1281 return EGL_TRUE;
1282 } else {
1283 /* undo the previous _eglBindContext */
1284 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1285 assert(&dri2_ctx->base == ctx &&
1286 tmp_dsurf == dsurf &&
1287 tmp_rsurf == rsurf);
1288
1289 _eglPutSurface(dsurf);
1290 _eglPutSurface(rsurf);
1291 _eglPutContext(ctx);
1292
1293 _eglPutSurface(old_dsurf);
1294 _eglPutSurface(old_rsurf);
1295 _eglPutContext(old_ctx);
1296
1297 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1298 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1299 * as EGL_SUCCESS.
1300 */
1301 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1302 }
1303 }
1304
1305 __DRIdrawable *
1306 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1307 {
1308 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1309
1310 return dri2_surf->dri_drawable;
1311 }
1312
1313 /*
1314 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1315 */
1316 static _EGLProc
1317 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1318 {
1319 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1320
1321 return dri2_drv->get_proc_address(procname);
1322 }
1323
1324 static _EGLSurface*
1325 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1326 _EGLConfig *conf, void *native_window,
1327 const EGLint *attrib_list)
1328 {
1329 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1330 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1331 attrib_list);
1332 }
1333
1334 static _EGLSurface*
1335 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1336 _EGLConfig *conf, void *native_pixmap,
1337 const EGLint *attrib_list)
1338 {
1339 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1340 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1341 attrib_list);
1342 }
1343
1344 static _EGLSurface*
1345 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1346 _EGLConfig *conf, const EGLint *attrib_list)
1347 {
1348 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1349 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1350 }
1351
1352 static EGLBoolean
1353 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1354 {
1355 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1356 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1357 }
1358
1359 static EGLBoolean
1360 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1361 EGLint interval)
1362 {
1363 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1364 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1365 }
1366
1367 /**
1368 * Asks the client API to flush any rendering to the drawable so that we can
1369 * do our swapbuffers.
1370 */
1371 void
1372 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1373 {
1374 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1375 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1376
1377 if (dri2_dpy->flush) {
1378 if (dri2_dpy->flush->base.version >= 4) {
1379 /* We know there's a current context because:
1380 *
1381 * "If surface is not bound to the calling thread’s current
1382 * context, an EGL_BAD_SURFACE error is generated."
1383 */
1384 _EGLContext *ctx = _eglGetCurrentContext();
1385 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1386
1387 /* From the EGL 1.4 spec (page 52):
1388 *
1389 * "The contents of ancillary buffers are always undefined
1390 * after calling eglSwapBuffers."
1391 */
1392 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1393 dri_drawable,
1394 __DRI2_FLUSH_DRAWABLE |
1395 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1396 __DRI2_THROTTLE_SWAPBUFFER);
1397 } else {
1398 dri2_dpy->flush->flush(dri_drawable);
1399 }
1400 }
1401 }
1402
1403 static EGLBoolean
1404 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1405 {
1406 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1407 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1408 }
1409
1410 static EGLBoolean
1411 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1412 _EGLSurface *surf,
1413 const EGLint *rects, EGLint n_rects)
1414 {
1415 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1416 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1417 rects, n_rects);
1418 }
1419
1420 static EGLBoolean
1421 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1422 EGLint numRects, const EGLint *rects)
1423 {
1424 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1425 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1426 }
1427
1428 static EGLBoolean
1429 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1430 EGLint x, EGLint y, EGLint width, EGLint height)
1431 {
1432 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1433 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1434 }
1435
1436 static EGLBoolean
1437 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1438 void *native_pixmap_target)
1439 {
1440 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1441 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1442 }
1443
1444 static EGLint
1445 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1446 {
1447 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1448 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1449 }
1450
1451 static EGLBoolean
1452 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1453 {
1454 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1455 _EGLSurface *surf = ctx->DrawSurface;
1456 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1457
1458 (void) drv;
1459
1460 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1461 * we need to copy fake to real here.*/
1462
1463 if (dri2_dpy->flush != NULL)
1464 dri2_dpy->flush->flush(dri_drawable);
1465
1466 return EGL_TRUE;
1467 }
1468
1469 static EGLBoolean
1470 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1471 {
1472 (void) drv;
1473 (void) disp;
1474
1475 if (engine != EGL_CORE_NATIVE_ENGINE)
1476 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1477 /* glXWaitX(); */
1478
1479 return EGL_TRUE;
1480 }
1481
1482 static EGLBoolean
1483 dri2_bind_tex_image(_EGLDriver *drv,
1484 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1485 {
1486 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1487 struct dri2_egl_context *dri2_ctx;
1488 _EGLContext *ctx;
1489 GLint format, target;
1490 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1491
1492 ctx = _eglGetCurrentContext();
1493 dri2_ctx = dri2_egl_context(ctx);
1494
1495 if (!_eglBindTexImage(drv, disp, surf, buffer))
1496 return EGL_FALSE;
1497
1498 switch (surf->TextureFormat) {
1499 case EGL_TEXTURE_RGB:
1500 format = __DRI_TEXTURE_FORMAT_RGB;
1501 break;
1502 case EGL_TEXTURE_RGBA:
1503 format = __DRI_TEXTURE_FORMAT_RGBA;
1504 break;
1505 default:
1506 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1507 format = __DRI_TEXTURE_FORMAT_RGBA;
1508 }
1509
1510 switch (surf->TextureTarget) {
1511 case EGL_TEXTURE_2D:
1512 target = GL_TEXTURE_2D;
1513 break;
1514 default:
1515 target = GL_TEXTURE_2D;
1516 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1517 }
1518
1519 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1520 target, format,
1521 dri_drawable);
1522
1523 return EGL_TRUE;
1524 }
1525
1526 static EGLBoolean
1527 dri2_release_tex_image(_EGLDriver *drv,
1528 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1529 {
1530 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1531 struct dri2_egl_context *dri2_ctx;
1532 _EGLContext *ctx;
1533 GLint target;
1534 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1535
1536 ctx = _eglGetCurrentContext();
1537 dri2_ctx = dri2_egl_context(ctx);
1538
1539 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1540 return EGL_FALSE;
1541
1542 switch (surf->TextureTarget) {
1543 case EGL_TEXTURE_2D:
1544 target = GL_TEXTURE_2D;
1545 break;
1546 default:
1547 assert(0);
1548 }
1549
1550 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1551 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1552 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1553 target,
1554 dri_drawable);
1555 }
1556
1557 return EGL_TRUE;
1558 }
1559
1560 static _EGLImage*
1561 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1562 EGLenum target, EGLClientBuffer buffer,
1563 const EGLint *attr_list)
1564 {
1565 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1566 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1567 attr_list);
1568 }
1569
1570 static _EGLImage *
1571 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1572 {
1573 struct dri2_egl_image *dri2_img;
1574
1575 if (dri_image == NULL) {
1576 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1577 return NULL;
1578 }
1579
1580 dri2_img = malloc(sizeof *dri2_img);
1581 if (!dri2_img) {
1582 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1583 return NULL;
1584 }
1585
1586 if (!_eglInitImage(&dri2_img->base, disp)) {
1587 free(dri2_img);
1588 return NULL;
1589 }
1590
1591 dri2_img->dri_image = dri_image;
1592
1593 return &dri2_img->base;
1594 }
1595
1596 static _EGLImage *
1597 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1598 EGLClientBuffer buffer,
1599 const EGLint *attr_list)
1600 {
1601 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1602 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1603 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1604 __DRIimage *dri_image;
1605
1606 if (renderbuffer == 0) {
1607 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1608 return EGL_NO_IMAGE_KHR;
1609 }
1610
1611 dri_image =
1612 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1613 renderbuffer, NULL);
1614
1615 return dri2_create_image_from_dri(disp, dri_image);
1616 }
1617
1618 #ifdef HAVE_WAYLAND_PLATFORM
1619
1620 /* This structure describes how a wl_buffer maps to one or more
1621 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1622 * offsets and strides of the planes in the buffer. This table maps a
1623 * wl_drm format code to a description of the planes in the buffer
1624 * that lets us create a __DRIimage for each of the planes. */
1625
1626 static const struct wl_drm_components_descriptor {
1627 uint32_t dri_components;
1628 EGLint components;
1629 int nplanes;
1630 } wl_drm_components[] = {
1631 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1632 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1633 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1634 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1635 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1636 };
1637
1638 static _EGLImage *
1639 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1640 EGLClientBuffer _buffer,
1641 const EGLint *attr_list)
1642 {
1643 struct wl_drm_buffer *buffer;
1644 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1645 const struct wl_drm_components_descriptor *f;
1646 __DRIimage *dri_image;
1647 _EGLImageAttribs attrs;
1648 EGLint err;
1649 int32_t plane;
1650
1651 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1652 (struct wl_resource *) _buffer);
1653 if (!buffer)
1654 return NULL;
1655
1656 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1657 plane = attrs.PlaneWL;
1658 if (err != EGL_SUCCESS) {
1659 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1660 return NULL;
1661 }
1662
1663 f = buffer->driver_format;
1664 if (plane < 0 || plane >= f->nplanes) {
1665 _eglError(EGL_BAD_PARAMETER,
1666 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1667 return NULL;
1668 }
1669
1670 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1671
1672 if (dri_image == NULL) {
1673 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1674 return NULL;
1675 }
1676
1677 return dri2_create_image_from_dri(disp, dri_image);
1678 }
1679 #endif
1680
1681 static EGLBoolean
1682 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1683 EGLuint64KHR *ust, EGLuint64KHR *msc,
1684 EGLuint64KHR *sbc)
1685 {
1686 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1687 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1688 }
1689
1690 /**
1691 * Set the error code after a call to
1692 * dri2_egl_image::dri_image::createImageFromTexture.
1693 */
1694 static void
1695 dri2_create_image_khr_texture_error(int dri_error)
1696 {
1697 EGLint egl_error;
1698
1699 switch (dri_error) {
1700 case __DRI_IMAGE_ERROR_SUCCESS:
1701 return;
1702
1703 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1704 egl_error = EGL_BAD_ALLOC;
1705 break;
1706
1707 case __DRI_IMAGE_ERROR_BAD_MATCH:
1708 egl_error = EGL_BAD_MATCH;
1709 break;
1710
1711 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1712 egl_error = EGL_BAD_PARAMETER;
1713 break;
1714
1715 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1716 egl_error = EGL_BAD_ACCESS;
1717 break;
1718
1719 default:
1720 assert(0);
1721 egl_error = EGL_BAD_MATCH;
1722 break;
1723 }
1724
1725 _eglError(egl_error, "dri2_create_image_khr_texture");
1726 }
1727
1728 static _EGLImage *
1729 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1730 EGLenum target,
1731 EGLClientBuffer buffer,
1732 const EGLint *attr_list)
1733 {
1734 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1735 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1736 struct dri2_egl_image *dri2_img;
1737 GLuint texture = (GLuint) (uintptr_t) buffer;
1738 _EGLImageAttribs attrs;
1739 GLuint depth;
1740 GLenum gl_target;
1741 unsigned error;
1742
1743 if (texture == 0) {
1744 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1745 return EGL_NO_IMAGE_KHR;
1746 }
1747
1748 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1749 return EGL_NO_IMAGE_KHR;
1750
1751 switch (target) {
1752 case EGL_GL_TEXTURE_2D_KHR:
1753 depth = 0;
1754 gl_target = GL_TEXTURE_2D;
1755 break;
1756 case EGL_GL_TEXTURE_3D_KHR:
1757 if (disp->Extensions.KHR_gl_texture_3D_image) {
1758 depth = attrs.GLTextureZOffset;
1759 gl_target = GL_TEXTURE_3D;
1760 break;
1761 }
1762 else {
1763 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1764 return EGL_NO_IMAGE_KHR;
1765 }
1766 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1767 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1768 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1769 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1770 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1771 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1772 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1773 gl_target = GL_TEXTURE_CUBE_MAP;
1774 break;
1775 default:
1776 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1777 return EGL_NO_IMAGE_KHR;
1778 }
1779
1780 dri2_img = malloc(sizeof *dri2_img);
1781 if (!dri2_img) {
1782 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1783 return EGL_NO_IMAGE_KHR;
1784 }
1785
1786 if (!_eglInitImage(&dri2_img->base, disp)) {
1787 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1788 free(dri2_img);
1789 return EGL_NO_IMAGE_KHR;
1790 }
1791
1792 dri2_img->dri_image =
1793 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1794 gl_target,
1795 texture,
1796 depth,
1797 attrs.GLTextureLevel,
1798 &error,
1799 dri2_img);
1800 dri2_create_image_khr_texture_error(error);
1801
1802 if (!dri2_img->dri_image) {
1803 free(dri2_img);
1804 return EGL_NO_IMAGE_KHR;
1805 }
1806 return &dri2_img->base;
1807 }
1808
1809 static EGLBoolean
1810 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1811 EGLint attribute, EGLint *value)
1812 {
1813 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1814 if (!dri2_dpy->vtbl->query_surface)
1815 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1816 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1817 }
1818
1819 static struct wl_buffer*
1820 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1821 _EGLImage *img)
1822 {
1823 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1824 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1825 }
1826
1827 #ifdef HAVE_LIBDRM
1828 static _EGLImage *
1829 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1830 EGLClientBuffer buffer, const EGLint *attr_list)
1831 {
1832 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1833 EGLint format, name, pitch, err;
1834 _EGLImageAttribs attrs;
1835 __DRIimage *dri_image;
1836
1837 name = (EGLint) (uintptr_t) buffer;
1838
1839 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1840 if (err != EGL_SUCCESS)
1841 return NULL;
1842
1843 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1844 attrs.DRMBufferStrideMESA <= 0) {
1845 _eglError(EGL_BAD_PARAMETER,
1846 "bad width, height or stride");
1847 return NULL;
1848 }
1849
1850 switch (attrs.DRMBufferFormatMESA) {
1851 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1852 format = __DRI_IMAGE_FORMAT_ARGB8888;
1853 pitch = attrs.DRMBufferStrideMESA;
1854 break;
1855 default:
1856 _eglError(EGL_BAD_PARAMETER,
1857 "dri2_create_image_khr: unsupported pixmap depth");
1858 return NULL;
1859 }
1860
1861 dri_image =
1862 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1863 attrs.Width,
1864 attrs.Height,
1865 format,
1866 name,
1867 pitch,
1868 NULL);
1869
1870 return dri2_create_image_from_dri(disp, dri_image);
1871 }
1872
1873 static EGLBoolean
1874 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1875 {
1876 unsigned i;
1877
1878 /**
1879 * The spec says:
1880 *
1881 * "Required attributes and their values are as follows:
1882 *
1883 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1884 *
1885 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1886 * by drm_fourcc.h and used as the pixel_format parameter of the
1887 * drm_mode_fb_cmd2 ioctl."
1888 *
1889 * and
1890 *
1891 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1892 * incomplete, EGL_BAD_PARAMETER is generated."
1893 */
1894 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1895 !attrs->DMABufFourCC.IsPresent) {
1896 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1897 return EGL_FALSE;
1898 }
1899
1900 /**
1901 * Also:
1902 *
1903 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1904 * specified for a plane's pitch or offset isn't supported by EGL,
1905 * EGL_BAD_ACCESS is generated."
1906 */
1907 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1908 if (attrs->DMABufPlanePitches[i].IsPresent &&
1909 attrs->DMABufPlanePitches[i].Value <= 0) {
1910 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1911 return EGL_FALSE;
1912 }
1913 }
1914
1915 return EGL_TRUE;
1916 }
1917
1918 /* Returns the total number of file descriptors. Zero indicates an error. */
1919 static unsigned
1920 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1921 {
1922 unsigned i, plane_n;
1923
1924 switch (attrs->DMABufFourCC.Value) {
1925 case DRM_FORMAT_R8:
1926 case DRM_FORMAT_RG88:
1927 case DRM_FORMAT_GR88:
1928 case DRM_FORMAT_RGB332:
1929 case DRM_FORMAT_BGR233:
1930 case DRM_FORMAT_XRGB4444:
1931 case DRM_FORMAT_XBGR4444:
1932 case DRM_FORMAT_RGBX4444:
1933 case DRM_FORMAT_BGRX4444:
1934 case DRM_FORMAT_ARGB4444:
1935 case DRM_FORMAT_ABGR4444:
1936 case DRM_FORMAT_RGBA4444:
1937 case DRM_FORMAT_BGRA4444:
1938 case DRM_FORMAT_XRGB1555:
1939 case DRM_FORMAT_XBGR1555:
1940 case DRM_FORMAT_RGBX5551:
1941 case DRM_FORMAT_BGRX5551:
1942 case DRM_FORMAT_ARGB1555:
1943 case DRM_FORMAT_ABGR1555:
1944 case DRM_FORMAT_RGBA5551:
1945 case DRM_FORMAT_BGRA5551:
1946 case DRM_FORMAT_RGB565:
1947 case DRM_FORMAT_BGR565:
1948 case DRM_FORMAT_RGB888:
1949 case DRM_FORMAT_BGR888:
1950 case DRM_FORMAT_XRGB8888:
1951 case DRM_FORMAT_XBGR8888:
1952 case DRM_FORMAT_RGBX8888:
1953 case DRM_FORMAT_BGRX8888:
1954 case DRM_FORMAT_ARGB8888:
1955 case DRM_FORMAT_ABGR8888:
1956 case DRM_FORMAT_RGBA8888:
1957 case DRM_FORMAT_BGRA8888:
1958 case DRM_FORMAT_XRGB2101010:
1959 case DRM_FORMAT_XBGR2101010:
1960 case DRM_FORMAT_RGBX1010102:
1961 case DRM_FORMAT_BGRX1010102:
1962 case DRM_FORMAT_ARGB2101010:
1963 case DRM_FORMAT_ABGR2101010:
1964 case DRM_FORMAT_RGBA1010102:
1965 case DRM_FORMAT_BGRA1010102:
1966 case DRM_FORMAT_YUYV:
1967 case DRM_FORMAT_YVYU:
1968 case DRM_FORMAT_UYVY:
1969 case DRM_FORMAT_VYUY:
1970 plane_n = 1;
1971 break;
1972 case DRM_FORMAT_NV12:
1973 case DRM_FORMAT_NV21:
1974 case DRM_FORMAT_NV16:
1975 case DRM_FORMAT_NV61:
1976 plane_n = 2;
1977 break;
1978 case DRM_FORMAT_YUV410:
1979 case DRM_FORMAT_YVU410:
1980 case DRM_FORMAT_YUV411:
1981 case DRM_FORMAT_YVU411:
1982 case DRM_FORMAT_YUV420:
1983 case DRM_FORMAT_YVU420:
1984 case DRM_FORMAT_YUV422:
1985 case DRM_FORMAT_YVU422:
1986 case DRM_FORMAT_YUV444:
1987 case DRM_FORMAT_YVU444:
1988 plane_n = 3;
1989 break;
1990 default:
1991 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1992 return 0;
1993 }
1994
1995 /**
1996 * The spec says:
1997 *
1998 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1999 * incomplete, EGL_BAD_PARAMETER is generated."
2000 */
2001 for (i = 0; i < plane_n; ++i) {
2002 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2003 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2004 !attrs->DMABufPlanePitches[i].IsPresent) {
2005 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2006 return 0;
2007 }
2008 }
2009
2010 /**
2011 * The spec also says:
2012 *
2013 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2014 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2015 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2016 * attributes are specified."
2017 */
2018 for (i = plane_n; i < 3; ++i) {
2019 if (attrs->DMABufPlaneFds[i].IsPresent ||
2020 attrs->DMABufPlaneOffsets[i].IsPresent ||
2021 attrs->DMABufPlanePitches[i].IsPresent) {
2022 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2023 return 0;
2024 }
2025 }
2026
2027 return plane_n;
2028 }
2029
2030 /**
2031 * The spec says:
2032 *
2033 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2034 * EGL will take a reference to the dma_buf(s) which it will release at any
2035 * time while the EGLDisplay is initialized. It is the responsibility of the
2036 * application to close the dma_buf file descriptors."
2037 *
2038 * Therefore we must never close or otherwise modify the file descriptors.
2039 */
2040 _EGLImage *
2041 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2042 EGLClientBuffer buffer, const EGLint *attr_list)
2043 {
2044 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2045 _EGLImage *res;
2046 EGLint err;
2047 _EGLImageAttribs attrs;
2048 __DRIimage *dri_image;
2049 unsigned num_fds;
2050 unsigned i;
2051 int fds[3];
2052 int pitches[3];
2053 int offsets[3];
2054 unsigned error;
2055
2056 /**
2057 * The spec says:
2058 *
2059 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2060 * error EGL_BAD_PARAMETER is generated."
2061 */
2062 if (buffer != NULL) {
2063 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2064 return NULL;
2065 }
2066
2067 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2068 if (err != EGL_SUCCESS) {
2069 _eglError(err, "bad attribute");
2070 return NULL;
2071 }
2072
2073 if (!dri2_check_dma_buf_attribs(&attrs))
2074 return NULL;
2075
2076 num_fds = dri2_check_dma_buf_format(&attrs);
2077 if (!num_fds)
2078 return NULL;
2079
2080 for (i = 0; i < num_fds; ++i) {
2081 fds[i] = attrs.DMABufPlaneFds[i].Value;
2082 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2083 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2084 }
2085
2086 dri_image =
2087 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2088 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2089 fds, num_fds, pitches, offsets,
2090 attrs.DMABufYuvColorSpaceHint.Value,
2091 attrs.DMABufSampleRangeHint.Value,
2092 attrs.DMABufChromaHorizontalSiting.Value,
2093 attrs.DMABufChromaVerticalSiting.Value,
2094 &error,
2095 NULL);
2096 dri2_create_image_khr_texture_error(error);
2097
2098 if (!dri_image)
2099 return EGL_NO_IMAGE_KHR;
2100
2101 res = dri2_create_image_from_dri(disp, dri_image);
2102
2103 return res;
2104 }
2105 static _EGLImage *
2106 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2107 const EGLint *attr_list)
2108 {
2109 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2110 struct dri2_egl_image *dri2_img;
2111 _EGLImageAttribs attrs;
2112 unsigned int dri_use, valid_mask;
2113 int format;
2114 EGLint err = EGL_SUCCESS;
2115
2116 (void) drv;
2117
2118 dri2_img = malloc(sizeof *dri2_img);
2119 if (!dri2_img) {
2120 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2121 return EGL_NO_IMAGE_KHR;
2122 }
2123
2124 if (!attr_list) {
2125 err = EGL_BAD_PARAMETER;
2126 goto cleanup_img;
2127 }
2128
2129 if (!_eglInitImage(&dri2_img->base, disp)) {
2130 err = EGL_BAD_PARAMETER;
2131 goto cleanup_img;
2132 }
2133
2134 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2135 if (err != EGL_SUCCESS)
2136 goto cleanup_img;
2137
2138 if (attrs.Width <= 0 || attrs.Height <= 0) {
2139 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2140 attrs.Width, attrs.Height);
2141 goto cleanup_img;
2142 }
2143
2144 switch (attrs.DRMBufferFormatMESA) {
2145 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2146 format = __DRI_IMAGE_FORMAT_ARGB8888;
2147 break;
2148 default:
2149 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2150 attrs.DRMBufferFormatMESA);
2151 goto cleanup_img;
2152 }
2153
2154 valid_mask =
2155 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2156 EGL_DRM_BUFFER_USE_SHARE_MESA |
2157 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2158 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2159 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2160 attrs.DRMBufferUseMESA & ~valid_mask);
2161 goto cleanup_img;
2162 }
2163
2164 dri_use = 0;
2165 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2166 dri_use |= __DRI_IMAGE_USE_SHARE;
2167 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2168 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2169 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2170 dri_use |= __DRI_IMAGE_USE_CURSOR;
2171
2172 dri2_img->dri_image =
2173 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2174 attrs.Width, attrs.Height,
2175 format, dri_use, dri2_img);
2176 if (dri2_img->dri_image == NULL) {
2177 err = EGL_BAD_ALLOC;
2178 goto cleanup_img;
2179 }
2180
2181 return &dri2_img->base;
2182
2183 cleanup_img:
2184 free(dri2_img);
2185 _eglError(err, "dri2_create_drm_image_mesa");
2186
2187 return EGL_NO_IMAGE_KHR;
2188 }
2189
2190 static EGLBoolean
2191 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2192 EGLint *name, EGLint *handle, EGLint *stride)
2193 {
2194 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2195 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2196
2197 (void) drv;
2198
2199 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2200 __DRI_IMAGE_ATTRIB_NAME, name)) {
2201 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2202 return EGL_FALSE;
2203 }
2204
2205 if (handle)
2206 dri2_dpy->image->queryImage(dri2_img->dri_image,
2207 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2208
2209 if (stride)
2210 dri2_dpy->image->queryImage(dri2_img->dri_image,
2211 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2212
2213 return EGL_TRUE;
2214 }
2215
2216 static EGLBoolean
2217 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2218 _EGLImage *img,
2219 EGLint *fourcc, EGLint *nplanes,
2220 EGLuint64KHR *modifiers)
2221 {
2222 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2223 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2224
2225 (void) drv;
2226
2227
2228 if (nplanes)
2229 dri2_dpy->image->queryImage(dri2_img->dri_image,
2230 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2231 if (fourcc)
2232 dri2_dpy->image->queryImage(dri2_img->dri_image,
2233 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2234
2235 if (modifiers)
2236 *modifiers = 0;
2237
2238 return EGL_TRUE;
2239 }
2240
2241 static EGLBoolean
2242 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2243 int *fds, EGLint *strides, EGLint *offsets)
2244 {
2245 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2246 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2247
2248 (void) drv;
2249
2250 /* rework later to provide multiple fds/strides/offsets */
2251 if (fds)
2252 dri2_dpy->image->queryImage(dri2_img->dri_image,
2253 __DRI_IMAGE_ATTRIB_FD, fds);
2254
2255 if (strides)
2256 dri2_dpy->image->queryImage(dri2_img->dri_image,
2257 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2258
2259 if (offsets)
2260 offsets[0] = 0;
2261
2262 return EGL_TRUE;
2263 }
2264
2265 #endif
2266
2267 _EGLImage *
2268 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2269 _EGLContext *ctx, EGLenum target,
2270 EGLClientBuffer buffer, const EGLint *attr_list)
2271 {
2272 (void) drv;
2273
2274 switch (target) {
2275 case EGL_GL_TEXTURE_2D_KHR:
2276 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2277 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2278 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2279 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2280 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2281 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2282 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2283 case EGL_GL_TEXTURE_3D_KHR:
2284 if (disp->Extensions.KHR_gl_texture_3D_image) {
2285 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2286 }
2287 else {
2288 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2289 return EGL_NO_IMAGE_KHR;
2290 }
2291 case EGL_GL_RENDERBUFFER_KHR:
2292 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2293 #ifdef HAVE_LIBDRM
2294 case EGL_DRM_BUFFER_MESA:
2295 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2296 case EGL_LINUX_DMA_BUF_EXT:
2297 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2298 #endif
2299 #ifdef HAVE_WAYLAND_PLATFORM
2300 case EGL_WAYLAND_BUFFER_WL:
2301 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2302 #endif
2303 default:
2304 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2305 return EGL_NO_IMAGE_KHR;
2306 }
2307 }
2308
2309 static EGLBoolean
2310 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2311 {
2312 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2313 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2314
2315 (void) drv;
2316
2317 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2318 free(dri2_img);
2319
2320 return EGL_TRUE;
2321 }
2322
2323 #ifdef HAVE_WAYLAND_PLATFORM
2324
2325 static void
2326 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2327 struct wl_drm_buffer *buffer)
2328 {
2329 _EGLDisplay *disp = user_data;
2330 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2331 __DRIimage *img;
2332 int i, dri_components = 0;
2333
2334 if (fd == -1)
2335 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2336 buffer->width,
2337 buffer->height,
2338 buffer->format,
2339 (int*)&name, 1,
2340 buffer->stride,
2341 buffer->offset,
2342 NULL);
2343 else
2344 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2345 buffer->width,
2346 buffer->height,
2347 buffer->format,
2348 &fd, 1,
2349 buffer->stride,
2350 buffer->offset,
2351 NULL);
2352
2353 if (img == NULL)
2354 return;
2355
2356 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2357
2358 buffer->driver_format = NULL;
2359 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2360 if (wl_drm_components[i].dri_components == dri_components)
2361 buffer->driver_format = &wl_drm_components[i];
2362
2363 if (buffer->driver_format == NULL)
2364 dri2_dpy->image->destroyImage(img);
2365 else
2366 buffer->driver_buffer = img;
2367 }
2368
2369 static void
2370 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2371 {
2372 _EGLDisplay *disp = user_data;
2373 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2374
2375 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2376 }
2377
2378 static struct wayland_drm_callbacks wl_drm_callbacks = {
2379 .authenticate = NULL,
2380 .reference_buffer = dri2_wl_reference_buffer,
2381 .release_buffer = dri2_wl_release_buffer
2382 };
2383
2384 static EGLBoolean
2385 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2386 struct wl_display *wl_dpy)
2387 {
2388 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2389 int flags = 0;
2390 uint64_t cap;
2391
2392 (void) drv;
2393
2394 if (dri2_dpy->wl_server_drm)
2395 return EGL_FALSE;
2396
2397 wl_drm_callbacks.authenticate =
2398 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2399
2400 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2401 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2402 dri2_dpy->image->base.version >= 7 &&
2403 dri2_dpy->image->createImageFromFds != NULL)
2404 flags |= WAYLAND_DRM_PRIME;
2405
2406 dri2_dpy->wl_server_drm =
2407 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2408 &wl_drm_callbacks, disp, flags);
2409
2410 if (!dri2_dpy->wl_server_drm)
2411 return EGL_FALSE;
2412
2413 #ifdef HAVE_DRM_PLATFORM
2414 /* We have to share the wl_drm instance with gbm, so gbm can convert
2415 * wl_buffers to gbm bos. */
2416 if (dri2_dpy->gbm_dri)
2417 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2418 #endif
2419
2420 return EGL_TRUE;
2421 }
2422
2423 static EGLBoolean
2424 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2425 struct wl_display *wl_dpy)
2426 {
2427 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2428
2429 (void) drv;
2430
2431 if (!dri2_dpy->wl_server_drm)
2432 return EGL_FALSE;
2433
2434 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2435 dri2_dpy->wl_server_drm = NULL;
2436
2437 return EGL_TRUE;
2438 }
2439
2440 static EGLBoolean
2441 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2442 struct wl_resource *buffer_resource,
2443 EGLint attribute, EGLint *value)
2444 {
2445 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2446 struct wl_drm_buffer *buffer;
2447 const struct wl_drm_components_descriptor *format;
2448
2449 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2450 if (!buffer)
2451 return EGL_FALSE;
2452
2453 format = buffer->driver_format;
2454 switch (attribute) {
2455 case EGL_TEXTURE_FORMAT:
2456 *value = format->components;
2457 return EGL_TRUE;
2458 case EGL_WIDTH:
2459 *value = buffer->width;
2460 return EGL_TRUE;
2461 case EGL_HEIGHT:
2462 *value = buffer->height;
2463 return EGL_TRUE;
2464 }
2465
2466 return EGL_FALSE;
2467 }
2468 #endif
2469
2470 static void
2471 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2472 {
2473 p_atomic_inc(&sync->refcount);
2474 }
2475
2476 static void
2477 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2478 struct dri2_egl_sync *dri2_sync)
2479 {
2480 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2481 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2482 cnd_destroy(&dri2_sync->cond);
2483
2484 if (dri2_sync->fence)
2485 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2486
2487 free(dri2_sync);
2488 }
2489 }
2490
2491 static _EGLSync *
2492 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2493 EGLenum type, const EGLint *attrib_list,
2494 const EGLAttrib *attrib_list64)
2495 {
2496 _EGLContext *ctx = _eglGetCurrentContext();
2497 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2498 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2499 struct dri2_egl_sync *dri2_sync;
2500 EGLint ret;
2501 pthread_condattr_t attr;
2502
2503 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2504 if (!dri2_sync) {
2505 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2506 return NULL;
2507 }
2508
2509 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2510 attrib_list64)) {
2511 free(dri2_sync);
2512 return NULL;
2513 }
2514
2515 switch (type) {
2516 case EGL_SYNC_FENCE_KHR:
2517 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2518 if (!dri2_sync->fence) {
2519 /* Why did it fail? DRI doesn't return an error code, so we emit
2520 * a generic EGL error that doesn't communicate user error.
2521 */
2522 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2523 free(dri2_sync);
2524 return NULL;
2525 }
2526 break;
2527
2528 case EGL_SYNC_CL_EVENT_KHR:
2529 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2530 dri2_dpy->dri_screen,
2531 dri2_sync->base.CLEvent);
2532 /* this can only happen if the cl_event passed in is invalid. */
2533 if (!dri2_sync->fence) {
2534 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2535 free(dri2_sync);
2536 return NULL;
2537 }
2538
2539 /* the initial status must be "signaled" if the cl_event is signaled */
2540 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2541 dri2_sync->fence, 0, 0))
2542 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2543 break;
2544
2545 case EGL_SYNC_REUSABLE_KHR:
2546 /* intialize attr */
2547 ret = pthread_condattr_init(&attr);
2548
2549 if (ret) {
2550 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2551 free(dri2_sync);
2552 return NULL;
2553 }
2554
2555 /* change clock attribute to CLOCK_MONOTONIC */
2556 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2557
2558 if (ret) {
2559 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2560 free(dri2_sync);
2561 return NULL;
2562 }
2563
2564 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2565
2566 if (ret) {
2567 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2568 free(dri2_sync);
2569 return NULL;
2570 }
2571
2572 /* initial status of reusable sync must be "unsignaled" */
2573 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2574 break;
2575 }
2576
2577 p_atomic_set(&dri2_sync->refcount, 1);
2578 return &dri2_sync->base;
2579 }
2580
2581 static EGLBoolean
2582 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2583 {
2584 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2585 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2586 EGLint ret = EGL_TRUE;
2587 EGLint err;
2588
2589 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2590 * then unlock all threads possibly blocked by the reusable sync before
2591 * destroying it.
2592 */
2593 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2594 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2595 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2596 /* unblock all threads currently blocked by sync */
2597 err = cnd_broadcast(&dri2_sync->cond);
2598
2599 if (err) {
2600 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2601 ret = EGL_FALSE;
2602 }
2603 }
2604 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2605
2606 return ret;
2607 }
2608
2609 static EGLint
2610 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2611 EGLint flags, EGLTime timeout)
2612 {
2613 _EGLContext *ctx = _eglGetCurrentContext();
2614 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2615 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2616 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2617 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2618 unsigned wait_flags = 0;
2619
2620 /* timespecs for cnd_timedwait */
2621 struct timespec current;
2622 xtime expire;
2623
2624 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2625
2626 /* The EGL_KHR_fence_sync spec states:
2627 *
2628 * "If no context is current for the bound API,
2629 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2630 */
2631 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2632 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2633
2634 /* the sync object should take a reference while waiting */
2635 dri2_egl_ref_sync(dri2_sync);
2636
2637 switch (sync->Type) {
2638 case EGL_SYNC_FENCE_KHR:
2639 case EGL_SYNC_CL_EVENT_KHR:
2640 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2641 dri2_sync->fence, wait_flags,
2642 timeout))
2643 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2644 else
2645 ret = EGL_TIMEOUT_EXPIRED_KHR;
2646 break;
2647
2648 case EGL_SYNC_REUSABLE_KHR:
2649 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2650 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2651 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2652 if (dri2_drv->glFlush)
2653 dri2_drv->glFlush();
2654 }
2655
2656 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2657 if (timeout == EGL_FOREVER_KHR) {
2658 mtx_lock(&dri2_sync->mutex);
2659 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2660 mtx_unlock(&dri2_sync->mutex);
2661 } else {
2662 /* if reusable sync has not been yet signaled */
2663 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2664 clock_gettime(CLOCK_MONOTONIC, &current);
2665
2666 /* calculating when to expire */
2667 expire.nsec = timeout % 1000000000L;
2668 expire.sec = timeout / 1000000000L;
2669
2670 expire.nsec += current.tv_nsec;
2671 expire.sec += current.tv_sec;
2672
2673 /* expire.nsec now is a number between 0 and 1999999998 */
2674 if (expire.nsec > 999999999L) {
2675 expire.sec++;
2676 expire.nsec -= 1000000000L;
2677 }
2678
2679 mtx_lock(&dri2_sync->mutex);
2680 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2681 mtx_unlock(&dri2_sync->mutex);
2682
2683 if (ret == thrd_busy) {
2684 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2685 ret = EGL_TIMEOUT_EXPIRED_KHR;
2686 } else {
2687 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2688 ret = EGL_FALSE;
2689 }
2690 }
2691 }
2692 }
2693 break;
2694 }
2695 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2696
2697 return ret;
2698 }
2699
2700 static EGLBoolean
2701 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2702 EGLenum mode)
2703 {
2704 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2705 EGLint ret;
2706
2707 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2708 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2709 return EGL_FALSE;
2710 }
2711
2712 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2713 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2714 return EGL_FALSE;
2715 }
2716
2717 dri2_sync->base.SyncStatus = mode;
2718
2719 if (mode == EGL_SIGNALED_KHR) {
2720 ret = cnd_broadcast(&dri2_sync->cond);
2721
2722 /* fail to broadcast */
2723 if (ret) {
2724 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2725 return EGL_FALSE;
2726 }
2727 }
2728
2729 return EGL_TRUE;
2730 }
2731
2732 static EGLint
2733 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2734 {
2735 _EGLContext *ctx = _eglGetCurrentContext();
2736 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2737 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2738 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2739
2740 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2741 dri2_sync->fence, 0);
2742 return EGL_TRUE;
2743 }
2744
2745 static int
2746 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2747 struct mesa_glinterop_device_info *out)
2748 {
2749 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2750 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2751
2752 if (!dri2_dpy->interop)
2753 return MESA_GLINTEROP_UNSUPPORTED;
2754
2755 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2756 }
2757
2758 static int
2759 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2760 struct mesa_glinterop_export_in *in,
2761 struct mesa_glinterop_export_out *out)
2762 {
2763 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2764 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2765
2766 if (!dri2_dpy->interop)
2767 return MESA_GLINTEROP_UNSUPPORTED;
2768
2769 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2770 }
2771
2772 static void
2773 dri2_unload(_EGLDriver *drv)
2774 {
2775 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2776
2777 if (dri2_drv->handle)
2778 dlclose(dri2_drv->handle);
2779 free(dri2_drv);
2780 }
2781
2782 static EGLBoolean
2783 dri2_load(_EGLDriver *drv)
2784 {
2785 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2786 #ifdef HAVE_ANDROID_PLATFORM
2787 const char *libname = "libglapi.so";
2788 #elif defined(__APPLE__)
2789 const char *libname = "libglapi.0.dylib";
2790 #elif defined(__CYGWIN__)
2791 const char *libname = "cygglapi-0.dll";
2792 #else
2793 const char *libname = "libglapi.so.0";
2794 #endif
2795 void *handle;
2796
2797 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2798 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2799 if (handle) {
2800 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2801 dlsym(handle, "_glapi_get_proc_address");
2802 if (!dri2_drv->get_proc_address || !libname) {
2803 /* no need to keep a reference */
2804 dlclose(handle);
2805 handle = NULL;
2806 }
2807 }
2808
2809 /* if glapi is not available, loading DRI drivers will fail */
2810 if (!dri2_drv->get_proc_address) {
2811 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2812 return EGL_FALSE;
2813 }
2814
2815 dri2_drv->glFlush = (void (*)(void))
2816 dri2_drv->get_proc_address("glFlush");
2817
2818 dri2_drv->handle = handle;
2819
2820 return EGL_TRUE;
2821 }
2822
2823 /**
2824 * This is the main entrypoint into the driver, called by libEGL.
2825 * Create a new _EGLDriver object and init its dispatch table.
2826 */
2827 _EGLDriver *
2828 _eglBuiltInDriverDRI2(const char *args)
2829 {
2830 struct dri2_egl_driver *dri2_drv;
2831
2832 (void) args;
2833
2834 dri2_drv = calloc(1, sizeof *dri2_drv);
2835 if (!dri2_drv)
2836 return NULL;
2837
2838 if (!dri2_load(&dri2_drv->base)) {
2839 free(dri2_drv);
2840 return NULL;
2841 }
2842
2843 _eglInitDriverFallbacks(&dri2_drv->base);
2844 dri2_drv->base.API.Initialize = dri2_initialize;
2845 dri2_drv->base.API.Terminate = dri2_terminate;
2846 dri2_drv->base.API.CreateContext = dri2_create_context;
2847 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2848 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2849 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2850 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2851 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2852 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2853 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2854 dri2_drv->base.API.WaitClient = dri2_wait_client;
2855 dri2_drv->base.API.WaitNative = dri2_wait_native;
2856 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2857 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2858 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2859 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2860 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2861 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2862 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2863 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2864 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2865 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2866 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2867 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2868 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2869 #ifdef HAVE_LIBDRM
2870 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2871 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2872 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2873 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2874 #endif
2875 #ifdef HAVE_WAYLAND_PLATFORM
2876 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2877 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2878 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2879 #endif
2880 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2881 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2882 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2883 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2884 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2885 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2886 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2887 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2888
2889 dri2_drv->base.Name = "DRI2";
2890 dri2_drv->base.Unload = dri2_unload;
2891
2892 return &dri2_drv->base;
2893 }