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egl/dri2: remove error checks on return values from mtx_lock and cnd_wait
[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))
597 disp->ClientAPIs |= EGL_OPENGL_BIT;
598 if (api_mask & (1 <<__DRI_API_GLES))
599 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
600 if (api_mask & (1 << __DRI_API_GLES2))
601 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
602 if (api_mask & (1 << __DRI_API_GLES3))
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 switch (disp->Platform) {
792 #ifdef HAVE_SURFACELESS_PLATFORM
793 case _EGL_PLATFORM_SURFACELESS:
794 if (disp->Options.TestOnly)
795 ret = EGL_TRUE;
796 else
797 ret = dri2_initialize_surfaceless(drv, disp);
798 break;
799 #endif
800 #ifdef HAVE_X11_PLATFORM
801 case _EGL_PLATFORM_X11:
802 if (disp->Options.TestOnly)
803 ret = EGL_TRUE;
804 else
805 ret = dri2_initialize_x11(drv, disp);
806 break;
807 #endif
808 #ifdef HAVE_DRM_PLATFORM
809 case _EGL_PLATFORM_DRM:
810 if (disp->Options.TestOnly)
811 ret = EGL_TRUE;
812 else
813 ret = dri2_initialize_drm(drv, disp);
814 break;
815 #endif
816 #ifdef HAVE_WAYLAND_PLATFORM
817 case _EGL_PLATFORM_WAYLAND:
818 if (disp->Options.TestOnly)
819 ret = EGL_TRUE;
820 else
821 ret = dri2_initialize_wayland(drv, disp);
822 break;
823 #endif
824 #ifdef HAVE_ANDROID_PLATFORM
825 case _EGL_PLATFORM_ANDROID:
826 if (disp->Options.TestOnly)
827 ret = EGL_TRUE;
828 else
829 ret = dri2_initialize_android(drv, disp);
830 break;
831 #endif
832 default:
833 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
834 return EGL_FALSE;
835 }
836
837 if (ret) {
838 dri2_dpy = dri2_egl_display(disp);
839
840 if (!dri2_dpy) {
841 return EGL_FALSE;
842 }
843
844 dri2_dpy->ref_count++;
845 }
846
847 return ret;
848 }
849
850 /**
851 * Decrement display reference count, and free up display if necessary.
852 */
853 static void
854 dri2_display_release(_EGLDisplay *disp) {
855 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
856 unsigned i;
857
858 assert(dri2_dpy->ref_count > 0);
859 dri2_dpy->ref_count--;
860
861 if (dri2_dpy->ref_count > 0)
862 return;
863
864 _eglCleanupDisplay(disp);
865
866 if (dri2_dpy->own_dri_screen)
867 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
868 if (dri2_dpy->fd >= 0)
869 close(dri2_dpy->fd);
870 if (dri2_dpy->driver)
871 dlclose(dri2_dpy->driver);
872 free(dri2_dpy->device_name);
873 free(dri2_dpy->driver_name);
874
875 switch (disp->Platform) {
876 #ifdef HAVE_X11_PLATFORM
877 case _EGL_PLATFORM_X11:
878 if (dri2_dpy->own_device) {
879 xcb_disconnect(dri2_dpy->conn);
880 }
881 break;
882 #endif
883 #ifdef HAVE_DRM_PLATFORM
884 case _EGL_PLATFORM_DRM:
885 if (dri2_dpy->own_device) {
886 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
887 }
888 break;
889 #endif
890 #ifdef HAVE_WAYLAND_PLATFORM
891 case _EGL_PLATFORM_WAYLAND:
892 if (dri2_dpy->wl_drm)
893 wl_drm_destroy(dri2_dpy->wl_drm);
894 if (dri2_dpy->wl_shm)
895 wl_shm_destroy(dri2_dpy->wl_shm);
896 wl_registry_destroy(dri2_dpy->wl_registry);
897 wl_event_queue_destroy(dri2_dpy->wl_queue);
898 if (dri2_dpy->own_device) {
899 wl_display_disconnect(dri2_dpy->wl_dpy);
900 }
901 break;
902 #endif
903 default:
904 break;
905 }
906
907 /* The drm platform does not create the screen/driver_configs but reuses
908 * the ones from the gbm device. As such the gbm itself is responsible
909 * for the cleanup.
910 */
911 if (disp->Platform != _EGL_PLATFORM_DRM) {
912 for (i = 0; dri2_dpy->driver_configs[i]; i++)
913 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
914 free(dri2_dpy->driver_configs);
915 }
916 free(dri2_dpy);
917 disp->DriverData = NULL;
918 }
919
920 /**
921 * Called via eglTerminate(), drv->API.Terminate().
922 *
923 * This must be guaranteed to be called exactly once, even if eglTerminate is
924 * called many times (without a eglInitialize in between).
925 */
926 static EGLBoolean
927 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
928 {
929 /* Release all non-current Context/Surfaces. */
930 _eglReleaseDisplayResources(drv, disp);
931
932 dri2_display_release(disp);
933
934 return EGL_TRUE;
935 }
936
937 /**
938 * Set the error code after a call to
939 * dri2_egl_display::dri2::createContextAttribs.
940 */
941 static void
942 dri2_create_context_attribs_error(int dri_error)
943 {
944 EGLint egl_error;
945
946 switch (dri_error) {
947 case __DRI_CTX_ERROR_SUCCESS:
948 return;
949
950 case __DRI_CTX_ERROR_NO_MEMORY:
951 egl_error = EGL_BAD_ALLOC;
952 break;
953
954 /* From the EGL_KHR_create_context spec, section "Errors":
955 *
956 * * If <config> does not support a client API context compatible
957 * with the requested API major and minor version, [...] context flags,
958 * and context reset notification behavior (for client API types where
959 * these attributes are supported), then an EGL_BAD_MATCH error is
960 * generated.
961 *
962 * * If an OpenGL ES context is requested and the values for
963 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
964 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
965 * is not defined, than an EGL_BAD_MATCH error is generated.
966 *
967 * * If an OpenGL context is requested, the requested version is
968 * greater than 3.2, and the value for attribute
969 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
970 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
971 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
972 * one of these bits set; or if the implementation does not support
973 * the requested profile, then an EGL_BAD_MATCH error is generated.
974 */
975 case __DRI_CTX_ERROR_BAD_API:
976 case __DRI_CTX_ERROR_BAD_VERSION:
977 case __DRI_CTX_ERROR_BAD_FLAG:
978 egl_error = EGL_BAD_MATCH;
979 break;
980
981 /* From the EGL_KHR_create_context spec, section "Errors":
982 *
983 * * If an attribute name or attribute value in <attrib_list> is not
984 * recognized (including unrecognized bits in bitmask attributes),
985 * then an EGL_BAD_ATTRIBUTE error is generated."
986 */
987 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
988 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
989 egl_error = EGL_BAD_ATTRIBUTE;
990 break;
991
992 default:
993 assert(0);
994 egl_error = EGL_BAD_MATCH;
995 break;
996 }
997
998 _eglError(egl_error, "dri2_create_context");
999 }
1000
1001 static bool
1002 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1003 struct dri2_egl_display *dri2_dpy,
1004 uint32_t *ctx_attribs,
1005 unsigned *num_attribs)
1006 {
1007 int pos = 0;
1008
1009 assert(*num_attribs >= 8);
1010
1011 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1012 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1013 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1014 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1015
1016 if (dri2_ctx->base.Flags != 0) {
1017 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1018 * extension, don't even try to send it the robust-access flag.
1019 * It may explode. Instead, generate the required EGL error here.
1020 */
1021 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1022 && !dri2_dpy->robustness) {
1023 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1024 return false;
1025 }
1026
1027 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1028 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1029 }
1030
1031 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1032 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1033 * extension, don't even try to send it a reset strategy. It may
1034 * explode. Instead, generate the required EGL error here.
1035 */
1036 if (!dri2_dpy->robustness) {
1037 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1038 return false;
1039 }
1040
1041 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1042 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1043 }
1044
1045 *num_attribs = pos;
1046
1047 return true;
1048 }
1049
1050 /**
1051 * Called via eglCreateContext(), drv->API.CreateContext().
1052 */
1053 static _EGLContext *
1054 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1055 _EGLContext *share_list, const EGLint *attrib_list)
1056 {
1057 struct dri2_egl_context *dri2_ctx;
1058 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1059 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1060 __DRIcontext *shared =
1061 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1062 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1063 const __DRIconfig *dri_config;
1064 int api;
1065
1066 (void) drv;
1067
1068 dri2_ctx = malloc(sizeof *dri2_ctx);
1069 if (!dri2_ctx) {
1070 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1071 return NULL;
1072 }
1073
1074 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1075 goto cleanup;
1076
1077 switch (dri2_ctx->base.ClientAPI) {
1078 case EGL_OPENGL_ES_API:
1079 switch (dri2_ctx->base.ClientMajorVersion) {
1080 case 1:
1081 api = __DRI_API_GLES;
1082 break;
1083 case 2:
1084 api = __DRI_API_GLES2;
1085 break;
1086 case 3:
1087 api = __DRI_API_GLES3;
1088 break;
1089 default:
1090 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1091 free(dri2_ctx);
1092 return NULL;
1093 }
1094 break;
1095 case EGL_OPENGL_API:
1096 if ((dri2_ctx->base.ClientMajorVersion >= 4
1097 || (dri2_ctx->base.ClientMajorVersion == 3
1098 && dri2_ctx->base.ClientMinorVersion >= 2))
1099 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1100 api = __DRI_API_OPENGL_CORE;
1101 else
1102 api = __DRI_API_OPENGL;
1103 break;
1104 default:
1105 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1106 free(dri2_ctx);
1107 return NULL;
1108 }
1109
1110 if (conf != NULL) {
1111 /* The config chosen here isn't necessarily
1112 * used for surfaces later.
1113 * A pixmap surface will use the single config.
1114 * This opportunity depends on disabling the
1115 * doubleBufferMode check in
1116 * src/mesa/main/context.c:check_compatible()
1117 */
1118 if (dri2_config->dri_double_config[0])
1119 dri_config = dri2_config->dri_double_config[0];
1120 else
1121 dri_config = dri2_config->dri_single_config[0];
1122
1123 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1124 * makes sure the back buffer will always be used.
1125 */
1126 if (conf->SurfaceType & EGL_WINDOW_BIT)
1127 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1128 }
1129 else
1130 dri_config = NULL;
1131
1132 if (dri2_dpy->image_driver) {
1133 unsigned error;
1134 unsigned num_attribs = 8;
1135 uint32_t ctx_attribs[8];
1136
1137 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1138 &num_attribs))
1139 goto cleanup;
1140
1141 dri2_ctx->dri_context =
1142 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1143 api,
1144 dri_config,
1145 shared,
1146 num_attribs / 2,
1147 ctx_attribs,
1148 & error,
1149 dri2_ctx);
1150 dri2_create_context_attribs_error(error);
1151 } else if (dri2_dpy->dri2) {
1152 if (dri2_dpy->dri2->base.version >= 3) {
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->dri2->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 {
1172 dri2_ctx->dri_context =
1173 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1174 api,
1175 dri_config,
1176 shared,
1177 dri2_ctx);
1178 }
1179 } else {
1180 assert(dri2_dpy->swrast);
1181 if (dri2_dpy->swrast->base.version >= 3) {
1182 unsigned error;
1183 unsigned num_attribs = 8;
1184 uint32_t ctx_attribs[8];
1185
1186 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1187 &num_attribs))
1188 goto cleanup;
1189
1190 dri2_ctx->dri_context =
1191 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1192 api,
1193 dri_config,
1194 shared,
1195 num_attribs / 2,
1196 ctx_attribs,
1197 & error,
1198 dri2_ctx);
1199 dri2_create_context_attribs_error(error);
1200 } else {
1201 dri2_ctx->dri_context =
1202 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1203 api,
1204 dri_config,
1205 shared,
1206 dri2_ctx);
1207 }
1208 }
1209
1210 if (!dri2_ctx->dri_context)
1211 goto cleanup;
1212
1213 return &dri2_ctx->base;
1214
1215 cleanup:
1216 free(dri2_ctx);
1217 return NULL;
1218 }
1219
1220 /**
1221 * Called via eglDestroyContext(), drv->API.DestroyContext().
1222 */
1223 static EGLBoolean
1224 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1225 {
1226 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1227 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1228
1229 if (_eglPutContext(ctx)) {
1230 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1231 free(dri2_ctx);
1232 }
1233
1234 return EGL_TRUE;
1235 }
1236
1237 /**
1238 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1239 */
1240 static EGLBoolean
1241 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1242 _EGLSurface *rsurf, _EGLContext *ctx)
1243 {
1244 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1245 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1246 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1247 _EGLContext *old_ctx;
1248 _EGLSurface *old_dsurf, *old_rsurf;
1249 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1250 __DRIdrawable *ddraw, *rdraw;
1251 __DRIcontext *cctx;
1252 EGLBoolean unbind;
1253
1254 if (!dri2_dpy)
1255 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1256
1257 /* make new bindings */
1258 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1259 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1260 return EGL_FALSE;
1261 }
1262
1263 /* flush before context switch */
1264 if (old_ctx && dri2_drv->glFlush)
1265 dri2_drv->glFlush();
1266
1267 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1268 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1269 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1270
1271 if (old_ctx) {
1272 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1273 dri2_dpy->core->unbindContext(old_cctx);
1274 }
1275
1276 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1277
1278 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1279 if (old_dsurf)
1280 drv->API.DestroySurface(drv, disp, old_dsurf);
1281 if (old_rsurf)
1282 drv->API.DestroySurface(drv, disp, old_rsurf);
1283
1284 if (!unbind)
1285 dri2_dpy->ref_count++;
1286 if (old_ctx) {
1287 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1288 drv->API.DestroyContext(drv, disp, old_ctx);
1289 dri2_display_release(old_disp);
1290 }
1291
1292 return EGL_TRUE;
1293 } else {
1294 /* undo the previous _eglBindContext */
1295 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1296 assert(&dri2_ctx->base == ctx &&
1297 tmp_dsurf == dsurf &&
1298 tmp_rsurf == rsurf);
1299
1300 _eglPutSurface(dsurf);
1301 _eglPutSurface(rsurf);
1302 _eglPutContext(ctx);
1303
1304 _eglPutSurface(old_dsurf);
1305 _eglPutSurface(old_rsurf);
1306 _eglPutContext(old_ctx);
1307
1308 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1309 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1310 * as EGL_SUCCESS.
1311 */
1312 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1313 }
1314 }
1315
1316 __DRIdrawable *
1317 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1318 {
1319 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1320
1321 return dri2_surf->dri_drawable;
1322 }
1323
1324 /*
1325 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1326 */
1327 static _EGLProc
1328 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1329 {
1330 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1331
1332 return dri2_drv->get_proc_address(procname);
1333 }
1334
1335 static _EGLSurface*
1336 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1337 _EGLConfig *conf, void *native_window,
1338 const EGLint *attrib_list)
1339 {
1340 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1341 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1342 attrib_list);
1343 }
1344
1345 static _EGLSurface*
1346 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1347 _EGLConfig *conf, void *native_pixmap,
1348 const EGLint *attrib_list)
1349 {
1350 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1351 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1352 attrib_list);
1353 }
1354
1355 static _EGLSurface*
1356 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1357 _EGLConfig *conf, const EGLint *attrib_list)
1358 {
1359 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1360 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1361 }
1362
1363 static EGLBoolean
1364 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1365 {
1366 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1367 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1368 }
1369
1370 static EGLBoolean
1371 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1372 EGLint interval)
1373 {
1374 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1375 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1376 }
1377
1378 /**
1379 * Asks the client API to flush any rendering to the drawable so that we can
1380 * do our swapbuffers.
1381 */
1382 void
1383 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1384 {
1385 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1386 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1387
1388 if (dri2_dpy->flush) {
1389 if (dri2_dpy->flush->base.version >= 4) {
1390 /* We know there's a current context because:
1391 *
1392 * "If surface is not bound to the calling thread’s current
1393 * context, an EGL_BAD_SURFACE error is generated."
1394 */
1395 _EGLContext *ctx = _eglGetCurrentContext();
1396 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1397
1398 /* From the EGL 1.4 spec (page 52):
1399 *
1400 * "The contents of ancillary buffers are always undefined
1401 * after calling eglSwapBuffers."
1402 */
1403 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1404 dri_drawable,
1405 __DRI2_FLUSH_DRAWABLE |
1406 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1407 __DRI2_THROTTLE_SWAPBUFFER);
1408 } else {
1409 dri2_dpy->flush->flush(dri_drawable);
1410 }
1411 }
1412 }
1413
1414 static EGLBoolean
1415 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1416 {
1417 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1418 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1419 }
1420
1421 static EGLBoolean
1422 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1423 _EGLSurface *surf,
1424 const EGLint *rects, EGLint n_rects)
1425 {
1426 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1427 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1428 rects, n_rects);
1429 }
1430
1431 static EGLBoolean
1432 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1433 EGLint numRects, const EGLint *rects)
1434 {
1435 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1436 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1437 }
1438
1439 static EGLBoolean
1440 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1441 EGLint x, EGLint y, EGLint width, EGLint height)
1442 {
1443 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1444 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1445 }
1446
1447 static EGLBoolean
1448 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1449 void *native_pixmap_target)
1450 {
1451 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1452 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1453 }
1454
1455 static EGLint
1456 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1457 {
1458 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1459 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1460 }
1461
1462 static EGLBoolean
1463 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1464 {
1465 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1466 _EGLSurface *surf = ctx->DrawSurface;
1467 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1468
1469 (void) drv;
1470
1471 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1472 * we need to copy fake to real here.*/
1473
1474 if (dri2_dpy->flush != NULL)
1475 dri2_dpy->flush->flush(dri_drawable);
1476
1477 return EGL_TRUE;
1478 }
1479
1480 static EGLBoolean
1481 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1482 {
1483 (void) drv;
1484 (void) disp;
1485
1486 if (engine != EGL_CORE_NATIVE_ENGINE)
1487 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1488 /* glXWaitX(); */
1489
1490 return EGL_TRUE;
1491 }
1492
1493 static EGLBoolean
1494 dri2_bind_tex_image(_EGLDriver *drv,
1495 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1496 {
1497 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1498 struct dri2_egl_context *dri2_ctx;
1499 _EGLContext *ctx;
1500 GLint format, target;
1501 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1502
1503 ctx = _eglGetCurrentContext();
1504 dri2_ctx = dri2_egl_context(ctx);
1505
1506 if (!_eglBindTexImage(drv, disp, surf, buffer))
1507 return EGL_FALSE;
1508
1509 switch (surf->TextureFormat) {
1510 case EGL_TEXTURE_RGB:
1511 format = __DRI_TEXTURE_FORMAT_RGB;
1512 break;
1513 case EGL_TEXTURE_RGBA:
1514 format = __DRI_TEXTURE_FORMAT_RGBA;
1515 break;
1516 default:
1517 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1518 format = __DRI_TEXTURE_FORMAT_RGBA;
1519 }
1520
1521 switch (surf->TextureTarget) {
1522 case EGL_TEXTURE_2D:
1523 target = GL_TEXTURE_2D;
1524 break;
1525 default:
1526 target = GL_TEXTURE_2D;
1527 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1528 }
1529
1530 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1531 target, format,
1532 dri_drawable);
1533
1534 return EGL_TRUE;
1535 }
1536
1537 static EGLBoolean
1538 dri2_release_tex_image(_EGLDriver *drv,
1539 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1540 {
1541 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1542 struct dri2_egl_context *dri2_ctx;
1543 _EGLContext *ctx;
1544 GLint target;
1545 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1546
1547 ctx = _eglGetCurrentContext();
1548 dri2_ctx = dri2_egl_context(ctx);
1549
1550 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1551 return EGL_FALSE;
1552
1553 switch (surf->TextureTarget) {
1554 case EGL_TEXTURE_2D:
1555 target = GL_TEXTURE_2D;
1556 break;
1557 default:
1558 assert(0);
1559 }
1560
1561 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1562 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1563 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1564 target,
1565 dri_drawable);
1566 }
1567
1568 return EGL_TRUE;
1569 }
1570
1571 static _EGLImage*
1572 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1573 EGLenum target, EGLClientBuffer buffer,
1574 const EGLint *attr_list)
1575 {
1576 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1577 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1578 attr_list);
1579 }
1580
1581 static _EGLImage *
1582 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1583 {
1584 struct dri2_egl_image *dri2_img;
1585
1586 if (dri_image == NULL) {
1587 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1588 return NULL;
1589 }
1590
1591 dri2_img = malloc(sizeof *dri2_img);
1592 if (!dri2_img) {
1593 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1594 return NULL;
1595 }
1596
1597 if (!_eglInitImage(&dri2_img->base, disp)) {
1598 free(dri2_img);
1599 return NULL;
1600 }
1601
1602 dri2_img->dri_image = dri_image;
1603
1604 return &dri2_img->base;
1605 }
1606
1607 static _EGLImage *
1608 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1609 EGLClientBuffer buffer,
1610 const EGLint *attr_list)
1611 {
1612 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1613 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1614 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1615 __DRIimage *dri_image;
1616
1617 if (renderbuffer == 0) {
1618 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1619 return EGL_NO_IMAGE_KHR;
1620 }
1621
1622 dri_image =
1623 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1624 renderbuffer, NULL);
1625
1626 return dri2_create_image_from_dri(disp, dri_image);
1627 }
1628
1629 #ifdef HAVE_WAYLAND_PLATFORM
1630
1631 /* This structure describes how a wl_buffer maps to one or more
1632 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1633 * offsets and strides of the planes in the buffer. This table maps a
1634 * wl_drm format code to a description of the planes in the buffer
1635 * that lets us create a __DRIimage for each of the planes. */
1636
1637 static const struct wl_drm_components_descriptor {
1638 uint32_t dri_components;
1639 EGLint components;
1640 int nplanes;
1641 } wl_drm_components[] = {
1642 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1643 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1644 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1645 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1646 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1647 };
1648
1649 static _EGLImage *
1650 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1651 EGLClientBuffer _buffer,
1652 const EGLint *attr_list)
1653 {
1654 struct wl_drm_buffer *buffer;
1655 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1656 const struct wl_drm_components_descriptor *f;
1657 __DRIimage *dri_image;
1658 _EGLImageAttribs attrs;
1659 EGLint err;
1660 int32_t plane;
1661
1662 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1663 (struct wl_resource *) _buffer);
1664 if (!buffer)
1665 return NULL;
1666
1667 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1668 plane = attrs.PlaneWL;
1669 if (err != EGL_SUCCESS) {
1670 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1671 return NULL;
1672 }
1673
1674 f = buffer->driver_format;
1675 if (plane < 0 || plane >= f->nplanes) {
1676 _eglError(EGL_BAD_PARAMETER,
1677 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1678 return NULL;
1679 }
1680
1681 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1682
1683 if (dri_image == NULL) {
1684 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1685 return NULL;
1686 }
1687
1688 return dri2_create_image_from_dri(disp, dri_image);
1689 }
1690 #endif
1691
1692 static EGLBoolean
1693 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1694 EGLuint64KHR *ust, EGLuint64KHR *msc,
1695 EGLuint64KHR *sbc)
1696 {
1697 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1698 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1699 }
1700
1701 /**
1702 * Set the error code after a call to
1703 * dri2_egl_image::dri_image::createImageFromTexture.
1704 */
1705 static void
1706 dri2_create_image_khr_texture_error(int dri_error)
1707 {
1708 EGLint egl_error;
1709
1710 switch (dri_error) {
1711 case __DRI_IMAGE_ERROR_SUCCESS:
1712 return;
1713
1714 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1715 egl_error = EGL_BAD_ALLOC;
1716 break;
1717
1718 case __DRI_IMAGE_ERROR_BAD_MATCH:
1719 egl_error = EGL_BAD_MATCH;
1720 break;
1721
1722 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1723 egl_error = EGL_BAD_PARAMETER;
1724 break;
1725
1726 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1727 egl_error = EGL_BAD_ACCESS;
1728 break;
1729
1730 default:
1731 assert(0);
1732 egl_error = EGL_BAD_MATCH;
1733 break;
1734 }
1735
1736 _eglError(egl_error, "dri2_create_image_khr_texture");
1737 }
1738
1739 static _EGLImage *
1740 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1741 EGLenum target,
1742 EGLClientBuffer buffer,
1743 const EGLint *attr_list)
1744 {
1745 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1746 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1747 struct dri2_egl_image *dri2_img;
1748 GLuint texture = (GLuint) (uintptr_t) buffer;
1749 _EGLImageAttribs attrs;
1750 GLuint depth;
1751 GLenum gl_target;
1752 unsigned error;
1753
1754 if (texture == 0) {
1755 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1756 return EGL_NO_IMAGE_KHR;
1757 }
1758
1759 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1760 return EGL_NO_IMAGE_KHR;
1761
1762 switch (target) {
1763 case EGL_GL_TEXTURE_2D_KHR:
1764 depth = 0;
1765 gl_target = GL_TEXTURE_2D;
1766 break;
1767 case EGL_GL_TEXTURE_3D_KHR:
1768 if (disp->Extensions.KHR_gl_texture_3D_image) {
1769 depth = attrs.GLTextureZOffset;
1770 gl_target = GL_TEXTURE_3D;
1771 break;
1772 }
1773 else {
1774 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1775 return EGL_NO_IMAGE_KHR;
1776 }
1777 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1778 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1779 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1780 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1781 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1782 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1783 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1784 gl_target = GL_TEXTURE_CUBE_MAP;
1785 break;
1786 default:
1787 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1788 return EGL_NO_IMAGE_KHR;
1789 }
1790
1791 dri2_img = malloc(sizeof *dri2_img);
1792 if (!dri2_img) {
1793 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1794 return EGL_NO_IMAGE_KHR;
1795 }
1796
1797 if (!_eglInitImage(&dri2_img->base, disp)) {
1798 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1799 free(dri2_img);
1800 return EGL_NO_IMAGE_KHR;
1801 }
1802
1803 dri2_img->dri_image =
1804 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1805 gl_target,
1806 texture,
1807 depth,
1808 attrs.GLTextureLevel,
1809 &error,
1810 dri2_img);
1811 dri2_create_image_khr_texture_error(error);
1812
1813 if (!dri2_img->dri_image) {
1814 free(dri2_img);
1815 return EGL_NO_IMAGE_KHR;
1816 }
1817 return &dri2_img->base;
1818 }
1819
1820 static EGLBoolean
1821 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1822 EGLint attribute, EGLint *value)
1823 {
1824 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1825 if (!dri2_dpy->vtbl->query_surface)
1826 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1827 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1828 }
1829
1830 static struct wl_buffer*
1831 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1832 _EGLImage *img)
1833 {
1834 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1835 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1836 }
1837
1838 #ifdef HAVE_LIBDRM
1839 static _EGLImage *
1840 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1841 EGLClientBuffer buffer, const EGLint *attr_list)
1842 {
1843 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1844 EGLint format, name, pitch, err;
1845 _EGLImageAttribs attrs;
1846 __DRIimage *dri_image;
1847
1848 name = (EGLint) (uintptr_t) buffer;
1849
1850 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1851 if (err != EGL_SUCCESS)
1852 return NULL;
1853
1854 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1855 attrs.DRMBufferStrideMESA <= 0) {
1856 _eglError(EGL_BAD_PARAMETER,
1857 "bad width, height or stride");
1858 return NULL;
1859 }
1860
1861 switch (attrs.DRMBufferFormatMESA) {
1862 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1863 format = __DRI_IMAGE_FORMAT_ARGB8888;
1864 pitch = attrs.DRMBufferStrideMESA;
1865 break;
1866 default:
1867 _eglError(EGL_BAD_PARAMETER,
1868 "dri2_create_image_khr: unsupported pixmap depth");
1869 return NULL;
1870 }
1871
1872 dri_image =
1873 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1874 attrs.Width,
1875 attrs.Height,
1876 format,
1877 name,
1878 pitch,
1879 NULL);
1880
1881 return dri2_create_image_from_dri(disp, dri_image);
1882 }
1883
1884 static EGLBoolean
1885 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1886 {
1887 unsigned i;
1888
1889 /**
1890 * The spec says:
1891 *
1892 * "Required attributes and their values are as follows:
1893 *
1894 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1895 *
1896 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1897 * by drm_fourcc.h and used as the pixel_format parameter of the
1898 * drm_mode_fb_cmd2 ioctl."
1899 *
1900 * and
1901 *
1902 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1903 * incomplete, EGL_BAD_PARAMETER is generated."
1904 */
1905 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1906 !attrs->DMABufFourCC.IsPresent) {
1907 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1908 return EGL_FALSE;
1909 }
1910
1911 /**
1912 * Also:
1913 *
1914 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1915 * specified for a plane's pitch or offset isn't supported by EGL,
1916 * EGL_BAD_ACCESS is generated."
1917 */
1918 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1919 if (attrs->DMABufPlanePitches[i].IsPresent &&
1920 attrs->DMABufPlanePitches[i].Value <= 0) {
1921 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1922 return EGL_FALSE;
1923 }
1924 }
1925
1926 return EGL_TRUE;
1927 }
1928
1929 /* Returns the total number of file descriptors. Zero indicates an error. */
1930 static unsigned
1931 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1932 {
1933 unsigned i, plane_n;
1934
1935 switch (attrs->DMABufFourCC.Value) {
1936 case DRM_FORMAT_R8:
1937 case DRM_FORMAT_RG88:
1938 case DRM_FORMAT_GR88:
1939 case DRM_FORMAT_RGB332:
1940 case DRM_FORMAT_BGR233:
1941 case DRM_FORMAT_XRGB4444:
1942 case DRM_FORMAT_XBGR4444:
1943 case DRM_FORMAT_RGBX4444:
1944 case DRM_FORMAT_BGRX4444:
1945 case DRM_FORMAT_ARGB4444:
1946 case DRM_FORMAT_ABGR4444:
1947 case DRM_FORMAT_RGBA4444:
1948 case DRM_FORMAT_BGRA4444:
1949 case DRM_FORMAT_XRGB1555:
1950 case DRM_FORMAT_XBGR1555:
1951 case DRM_FORMAT_RGBX5551:
1952 case DRM_FORMAT_BGRX5551:
1953 case DRM_FORMAT_ARGB1555:
1954 case DRM_FORMAT_ABGR1555:
1955 case DRM_FORMAT_RGBA5551:
1956 case DRM_FORMAT_BGRA5551:
1957 case DRM_FORMAT_RGB565:
1958 case DRM_FORMAT_BGR565:
1959 case DRM_FORMAT_RGB888:
1960 case DRM_FORMAT_BGR888:
1961 case DRM_FORMAT_XRGB8888:
1962 case DRM_FORMAT_XBGR8888:
1963 case DRM_FORMAT_RGBX8888:
1964 case DRM_FORMAT_BGRX8888:
1965 case DRM_FORMAT_ARGB8888:
1966 case DRM_FORMAT_ABGR8888:
1967 case DRM_FORMAT_RGBA8888:
1968 case DRM_FORMAT_BGRA8888:
1969 case DRM_FORMAT_XRGB2101010:
1970 case DRM_FORMAT_XBGR2101010:
1971 case DRM_FORMAT_RGBX1010102:
1972 case DRM_FORMAT_BGRX1010102:
1973 case DRM_FORMAT_ARGB2101010:
1974 case DRM_FORMAT_ABGR2101010:
1975 case DRM_FORMAT_RGBA1010102:
1976 case DRM_FORMAT_BGRA1010102:
1977 case DRM_FORMAT_YUYV:
1978 case DRM_FORMAT_YVYU:
1979 case DRM_FORMAT_UYVY:
1980 case DRM_FORMAT_VYUY:
1981 plane_n = 1;
1982 break;
1983 case DRM_FORMAT_NV12:
1984 case DRM_FORMAT_NV21:
1985 case DRM_FORMAT_NV16:
1986 case DRM_FORMAT_NV61:
1987 plane_n = 2;
1988 break;
1989 case DRM_FORMAT_YUV410:
1990 case DRM_FORMAT_YVU410:
1991 case DRM_FORMAT_YUV411:
1992 case DRM_FORMAT_YVU411:
1993 case DRM_FORMAT_YUV420:
1994 case DRM_FORMAT_YVU420:
1995 case DRM_FORMAT_YUV422:
1996 case DRM_FORMAT_YVU422:
1997 case DRM_FORMAT_YUV444:
1998 case DRM_FORMAT_YVU444:
1999 plane_n = 3;
2000 break;
2001 default:
2002 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2003 return 0;
2004 }
2005
2006 /**
2007 * The spec says:
2008 *
2009 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2010 * incomplete, EGL_BAD_PARAMETER is generated."
2011 */
2012 for (i = 0; i < plane_n; ++i) {
2013 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2014 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2015 !attrs->DMABufPlanePitches[i].IsPresent) {
2016 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2017 return 0;
2018 }
2019 }
2020
2021 /**
2022 * The spec also says:
2023 *
2024 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2025 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2026 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2027 * attributes are specified."
2028 */
2029 for (i = plane_n; i < 3; ++i) {
2030 if (attrs->DMABufPlaneFds[i].IsPresent ||
2031 attrs->DMABufPlaneOffsets[i].IsPresent ||
2032 attrs->DMABufPlanePitches[i].IsPresent) {
2033 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2034 return 0;
2035 }
2036 }
2037
2038 return plane_n;
2039 }
2040
2041 /**
2042 * The spec says:
2043 *
2044 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2045 * EGL will take a reference to the dma_buf(s) which it will release at any
2046 * time while the EGLDisplay is initialized. It is the responsibility of the
2047 * application to close the dma_buf file descriptors."
2048 *
2049 * Therefore we must never close or otherwise modify the file descriptors.
2050 */
2051 _EGLImage *
2052 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2053 EGLClientBuffer buffer, const EGLint *attr_list)
2054 {
2055 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2056 _EGLImage *res;
2057 EGLint err;
2058 _EGLImageAttribs attrs;
2059 __DRIimage *dri_image;
2060 unsigned num_fds;
2061 unsigned i;
2062 int fds[3];
2063 int pitches[3];
2064 int offsets[3];
2065 unsigned error;
2066
2067 /**
2068 * The spec says:
2069 *
2070 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2071 * error EGL_BAD_PARAMETER is generated."
2072 */
2073 if (buffer != NULL) {
2074 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2075 return NULL;
2076 }
2077
2078 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2079 if (err != EGL_SUCCESS) {
2080 _eglError(err, "bad attribute");
2081 return NULL;
2082 }
2083
2084 if (!dri2_check_dma_buf_attribs(&attrs))
2085 return NULL;
2086
2087 num_fds = dri2_check_dma_buf_format(&attrs);
2088 if (!num_fds)
2089 return NULL;
2090
2091 for (i = 0; i < num_fds; ++i) {
2092 fds[i] = attrs.DMABufPlaneFds[i].Value;
2093 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2094 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2095 }
2096
2097 dri_image =
2098 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2099 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2100 fds, num_fds, pitches, offsets,
2101 attrs.DMABufYuvColorSpaceHint.Value,
2102 attrs.DMABufSampleRangeHint.Value,
2103 attrs.DMABufChromaHorizontalSiting.Value,
2104 attrs.DMABufChromaVerticalSiting.Value,
2105 &error,
2106 NULL);
2107 dri2_create_image_khr_texture_error(error);
2108
2109 if (!dri_image)
2110 return EGL_NO_IMAGE_KHR;
2111
2112 res = dri2_create_image_from_dri(disp, dri_image);
2113
2114 return res;
2115 }
2116 static _EGLImage *
2117 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2118 const EGLint *attr_list)
2119 {
2120 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2121 struct dri2_egl_image *dri2_img;
2122 _EGLImageAttribs attrs;
2123 unsigned int dri_use, valid_mask;
2124 int format;
2125 EGLint err = EGL_SUCCESS;
2126
2127 (void) drv;
2128
2129 dri2_img = malloc(sizeof *dri2_img);
2130 if (!dri2_img) {
2131 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2132 return EGL_NO_IMAGE_KHR;
2133 }
2134
2135 if (!attr_list) {
2136 err = EGL_BAD_PARAMETER;
2137 goto cleanup_img;
2138 }
2139
2140 if (!_eglInitImage(&dri2_img->base, disp)) {
2141 err = EGL_BAD_PARAMETER;
2142 goto cleanup_img;
2143 }
2144
2145 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2146 if (err != EGL_SUCCESS)
2147 goto cleanup_img;
2148
2149 if (attrs.Width <= 0 || attrs.Height <= 0) {
2150 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2151 attrs.Width, attrs.Height);
2152 goto cleanup_img;
2153 }
2154
2155 switch (attrs.DRMBufferFormatMESA) {
2156 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2157 format = __DRI_IMAGE_FORMAT_ARGB8888;
2158 break;
2159 default:
2160 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2161 attrs.DRMBufferFormatMESA);
2162 goto cleanup_img;
2163 }
2164
2165 valid_mask =
2166 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2167 EGL_DRM_BUFFER_USE_SHARE_MESA |
2168 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2169 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2170 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2171 attrs.DRMBufferUseMESA & ~valid_mask);
2172 goto cleanup_img;
2173 }
2174
2175 dri_use = 0;
2176 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2177 dri_use |= __DRI_IMAGE_USE_SHARE;
2178 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2179 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2180 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2181 dri_use |= __DRI_IMAGE_USE_CURSOR;
2182
2183 dri2_img->dri_image =
2184 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2185 attrs.Width, attrs.Height,
2186 format, dri_use, dri2_img);
2187 if (dri2_img->dri_image == NULL) {
2188 err = EGL_BAD_ALLOC;
2189 goto cleanup_img;
2190 }
2191
2192 return &dri2_img->base;
2193
2194 cleanup_img:
2195 free(dri2_img);
2196 _eglError(err, "dri2_create_drm_image_mesa");
2197
2198 return EGL_NO_IMAGE_KHR;
2199 }
2200
2201 static EGLBoolean
2202 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2203 EGLint *name, EGLint *handle, EGLint *stride)
2204 {
2205 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2206 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2207
2208 (void) drv;
2209
2210 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2211 __DRI_IMAGE_ATTRIB_NAME, name)) {
2212 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2213 return EGL_FALSE;
2214 }
2215
2216 if (handle)
2217 dri2_dpy->image->queryImage(dri2_img->dri_image,
2218 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2219
2220 if (stride)
2221 dri2_dpy->image->queryImage(dri2_img->dri_image,
2222 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2223
2224 return EGL_TRUE;
2225 }
2226
2227 static EGLBoolean
2228 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2229 _EGLImage *img,
2230 EGLint *fourcc, EGLint *nplanes,
2231 EGLuint64KHR *modifiers)
2232 {
2233 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2234 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2235
2236 (void) drv;
2237
2238
2239 if (nplanes)
2240 dri2_dpy->image->queryImage(dri2_img->dri_image,
2241 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2242 if (fourcc)
2243 dri2_dpy->image->queryImage(dri2_img->dri_image,
2244 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2245
2246 if (modifiers)
2247 *modifiers = 0;
2248
2249 return EGL_TRUE;
2250 }
2251
2252 static EGLBoolean
2253 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2254 int *fds, EGLint *strides, EGLint *offsets)
2255 {
2256 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2257 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2258
2259 (void) drv;
2260
2261 /* rework later to provide multiple fds/strides/offsets */
2262 if (fds)
2263 dri2_dpy->image->queryImage(dri2_img->dri_image,
2264 __DRI_IMAGE_ATTRIB_FD, fds);
2265
2266 if (strides)
2267 dri2_dpy->image->queryImage(dri2_img->dri_image,
2268 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2269
2270 if (offsets)
2271 offsets[0] = 0;
2272
2273 return EGL_TRUE;
2274 }
2275
2276 #endif
2277
2278 _EGLImage *
2279 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2280 _EGLContext *ctx, EGLenum target,
2281 EGLClientBuffer buffer, const EGLint *attr_list)
2282 {
2283 (void) drv;
2284
2285 switch (target) {
2286 case EGL_GL_TEXTURE_2D_KHR:
2287 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2288 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2289 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2290 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2291 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2292 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2293 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2294 case EGL_GL_TEXTURE_3D_KHR:
2295 if (disp->Extensions.KHR_gl_texture_3D_image) {
2296 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2297 }
2298 else {
2299 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2300 return EGL_NO_IMAGE_KHR;
2301 }
2302 case EGL_GL_RENDERBUFFER_KHR:
2303 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2304 #ifdef HAVE_LIBDRM
2305 case EGL_DRM_BUFFER_MESA:
2306 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2307 case EGL_LINUX_DMA_BUF_EXT:
2308 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2309 #endif
2310 #ifdef HAVE_WAYLAND_PLATFORM
2311 case EGL_WAYLAND_BUFFER_WL:
2312 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2313 #endif
2314 default:
2315 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2316 return EGL_NO_IMAGE_KHR;
2317 }
2318 }
2319
2320 static EGLBoolean
2321 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2322 {
2323 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2324 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2325
2326 (void) drv;
2327
2328 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2329 free(dri2_img);
2330
2331 return EGL_TRUE;
2332 }
2333
2334 #ifdef HAVE_WAYLAND_PLATFORM
2335
2336 static void
2337 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2338 struct wl_drm_buffer *buffer)
2339 {
2340 _EGLDisplay *disp = user_data;
2341 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2342 __DRIimage *img;
2343 int i, dri_components = 0;
2344
2345 if (fd == -1)
2346 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2347 buffer->width,
2348 buffer->height,
2349 buffer->format,
2350 (int*)&name, 1,
2351 buffer->stride,
2352 buffer->offset,
2353 NULL);
2354 else
2355 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2356 buffer->width,
2357 buffer->height,
2358 buffer->format,
2359 &fd, 1,
2360 buffer->stride,
2361 buffer->offset,
2362 NULL);
2363
2364 if (img == NULL)
2365 return;
2366
2367 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2368
2369 buffer->driver_format = NULL;
2370 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2371 if (wl_drm_components[i].dri_components == dri_components)
2372 buffer->driver_format = &wl_drm_components[i];
2373
2374 if (buffer->driver_format == NULL)
2375 dri2_dpy->image->destroyImage(img);
2376 else
2377 buffer->driver_buffer = img;
2378 }
2379
2380 static void
2381 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2382 {
2383 _EGLDisplay *disp = user_data;
2384 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2385
2386 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2387 }
2388
2389 static struct wayland_drm_callbacks wl_drm_callbacks = {
2390 .authenticate = NULL,
2391 .reference_buffer = dri2_wl_reference_buffer,
2392 .release_buffer = dri2_wl_release_buffer
2393 };
2394
2395 static EGLBoolean
2396 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2397 struct wl_display *wl_dpy)
2398 {
2399 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2400 int flags = 0;
2401 uint64_t cap;
2402
2403 (void) drv;
2404
2405 if (dri2_dpy->wl_server_drm)
2406 return EGL_FALSE;
2407
2408 wl_drm_callbacks.authenticate =
2409 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2410
2411 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2412 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2413 dri2_dpy->image->base.version >= 7 &&
2414 dri2_dpy->image->createImageFromFds != NULL)
2415 flags |= WAYLAND_DRM_PRIME;
2416
2417 dri2_dpy->wl_server_drm =
2418 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2419 &wl_drm_callbacks, disp, flags);
2420
2421 if (!dri2_dpy->wl_server_drm)
2422 return EGL_FALSE;
2423
2424 #ifdef HAVE_DRM_PLATFORM
2425 /* We have to share the wl_drm instance with gbm, so gbm can convert
2426 * wl_buffers to gbm bos. */
2427 if (dri2_dpy->gbm_dri)
2428 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2429 #endif
2430
2431 return EGL_TRUE;
2432 }
2433
2434 static EGLBoolean
2435 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2436 struct wl_display *wl_dpy)
2437 {
2438 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2439
2440 (void) drv;
2441
2442 if (!dri2_dpy->wl_server_drm)
2443 return EGL_FALSE;
2444
2445 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2446 dri2_dpy->wl_server_drm = NULL;
2447
2448 return EGL_TRUE;
2449 }
2450
2451 static EGLBoolean
2452 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2453 struct wl_resource *buffer_resource,
2454 EGLint attribute, EGLint *value)
2455 {
2456 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2457 struct wl_drm_buffer *buffer;
2458 const struct wl_drm_components_descriptor *format;
2459
2460 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2461 if (!buffer)
2462 return EGL_FALSE;
2463
2464 format = buffer->driver_format;
2465 switch (attribute) {
2466 case EGL_TEXTURE_FORMAT:
2467 *value = format->components;
2468 return EGL_TRUE;
2469 case EGL_WIDTH:
2470 *value = buffer->width;
2471 return EGL_TRUE;
2472 case EGL_HEIGHT:
2473 *value = buffer->height;
2474 return EGL_TRUE;
2475 }
2476
2477 return EGL_FALSE;
2478 }
2479 #endif
2480
2481 static void
2482 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2483 {
2484 p_atomic_inc(&sync->refcount);
2485 }
2486
2487 static void
2488 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2489 struct dri2_egl_sync *dri2_sync)
2490 {
2491 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2492 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2493 cnd_destroy(&dri2_sync->cond);
2494
2495 if (dri2_sync->fence)
2496 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2497
2498 free(dri2_sync);
2499 }
2500 }
2501
2502 static _EGLSync *
2503 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2504 EGLenum type, const EGLint *attrib_list,
2505 const EGLAttrib *attrib_list64)
2506 {
2507 _EGLContext *ctx = _eglGetCurrentContext();
2508 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2509 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2510 struct dri2_egl_sync *dri2_sync;
2511 EGLint ret;
2512 pthread_condattr_t attr;
2513
2514 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2515 if (!dri2_sync) {
2516 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2517 return NULL;
2518 }
2519
2520 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2521 attrib_list64)) {
2522 free(dri2_sync);
2523 return NULL;
2524 }
2525
2526 switch (type) {
2527 case EGL_SYNC_FENCE_KHR:
2528 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2529 if (!dri2_sync->fence) {
2530 /* Why did it fail? DRI doesn't return an error code, so we emit
2531 * a generic EGL error that doesn't communicate user error.
2532 */
2533 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2534 free(dri2_sync);
2535 return NULL;
2536 }
2537 break;
2538
2539 case EGL_SYNC_CL_EVENT_KHR:
2540 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2541 dri2_dpy->dri_screen,
2542 dri2_sync->base.CLEvent);
2543 /* this can only happen if the cl_event passed in is invalid. */
2544 if (!dri2_sync->fence) {
2545 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2546 free(dri2_sync);
2547 return NULL;
2548 }
2549
2550 /* the initial status must be "signaled" if the cl_event is signaled */
2551 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2552 dri2_sync->fence, 0, 0))
2553 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2554 break;
2555
2556 case EGL_SYNC_REUSABLE_KHR:
2557 /* intialize attr */
2558 ret = pthread_condattr_init(&attr);
2559
2560 if (ret) {
2561 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2562 free(dri2_sync);
2563 return NULL;
2564 }
2565
2566 /* change clock attribute to CLOCK_MONOTONIC */
2567 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2568
2569 if (ret) {
2570 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2571 free(dri2_sync);
2572 return NULL;
2573 }
2574
2575 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2576
2577 if (ret) {
2578 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2579 free(dri2_sync);
2580 return NULL;
2581 }
2582
2583 /* initial status of reusable sync must be "unsignaled" */
2584 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2585 break;
2586 }
2587
2588 p_atomic_set(&dri2_sync->refcount, 1);
2589 return &dri2_sync->base;
2590 }
2591
2592 static EGLBoolean
2593 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2594 {
2595 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2596 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2597 EGLint ret = EGL_TRUE;
2598 EGLint err;
2599
2600 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2601 * then unlock all threads possibly blocked by the reusable sync before
2602 * destroying it.
2603 */
2604 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2605 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2606 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2607 /* unblock all threads currently blocked by sync */
2608 err = cnd_broadcast(&dri2_sync->cond);
2609
2610 if (err) {
2611 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2612 ret = EGL_FALSE;
2613 }
2614 }
2615 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2616
2617 return ret;
2618 }
2619
2620 static EGLint
2621 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2622 EGLint flags, EGLTime timeout)
2623 {
2624 _EGLContext *ctx = _eglGetCurrentContext();
2625 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2626 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2627 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2628 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2629 unsigned wait_flags = 0;
2630
2631 /* timespecs for cnd_timedwait */
2632 struct timespec current;
2633 xtime expire;
2634
2635 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2636
2637 /* The EGL_KHR_fence_sync spec states:
2638 *
2639 * "If no context is current for the bound API,
2640 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2641 */
2642 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2643 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2644
2645 /* the sync object should take a reference while waiting */
2646 dri2_egl_ref_sync(dri2_sync);
2647
2648 switch (sync->Type) {
2649 case EGL_SYNC_FENCE_KHR:
2650 case EGL_SYNC_CL_EVENT_KHR:
2651 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2652 dri2_sync->fence, wait_flags,
2653 timeout))
2654 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2655 else
2656 ret = EGL_TIMEOUT_EXPIRED_KHR;
2657 break;
2658
2659 case EGL_SYNC_REUSABLE_KHR:
2660 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2661 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2662 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2663 if (dri2_drv->glFlush)
2664 dri2_drv->glFlush();
2665 }
2666
2667 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2668 if (timeout == EGL_FOREVER_KHR) {
2669 mtx_lock(&dri2_sync->mutex);
2670 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2671 mtx_unlock(&dri2_sync->mutex);
2672 } else {
2673 /* if reusable sync has not been yet signaled */
2674 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2675 clock_gettime(CLOCK_MONOTONIC, &current);
2676
2677 /* calculating when to expire */
2678 expire.nsec = timeout % 1000000000L;
2679 expire.sec = timeout / 1000000000L;
2680
2681 expire.nsec += current.tv_nsec;
2682 expire.sec += current.tv_sec;
2683
2684 /* expire.nsec now is a number between 0 and 1999999998 */
2685 if (expire.nsec > 999999999L) {
2686 expire.sec++;
2687 expire.nsec -= 1000000000L;
2688 }
2689
2690 mtx_lock(&dri2_sync->mutex);
2691 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2692 mtx_unlock(&dri2_sync->mutex);
2693
2694 if (ret == thrd_busy) {
2695 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2696 ret = EGL_TIMEOUT_EXPIRED_KHR;
2697 } else {
2698 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2699 ret = EGL_FALSE;
2700 }
2701 }
2702 }
2703 }
2704 break;
2705 }
2706 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2707
2708 return ret;
2709 }
2710
2711 static EGLBoolean
2712 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2713 EGLenum mode)
2714 {
2715 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2716 EGLint ret;
2717
2718 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2719 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2720 return EGL_FALSE;
2721 }
2722
2723 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2724 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2725 return EGL_FALSE;
2726 }
2727
2728 dri2_sync->base.SyncStatus = mode;
2729
2730 if (mode == EGL_SIGNALED_KHR) {
2731 ret = cnd_broadcast(&dri2_sync->cond);
2732
2733 /* fail to broadcast */
2734 if (ret) {
2735 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2736 return EGL_FALSE;
2737 }
2738 }
2739
2740 return EGL_TRUE;
2741 }
2742
2743 static EGLint
2744 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2745 {
2746 _EGLContext *ctx = _eglGetCurrentContext();
2747 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2748 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2749 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2750
2751 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2752 dri2_sync->fence, 0);
2753 return EGL_TRUE;
2754 }
2755
2756 static int
2757 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2758 struct mesa_glinterop_device_info *out)
2759 {
2760 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2761 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2762
2763 if (!dri2_dpy->interop)
2764 return MESA_GLINTEROP_UNSUPPORTED;
2765
2766 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2767 }
2768
2769 static int
2770 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2771 struct mesa_glinterop_export_in *in,
2772 struct mesa_glinterop_export_out *out)
2773 {
2774 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2775 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2776
2777 if (!dri2_dpy->interop)
2778 return MESA_GLINTEROP_UNSUPPORTED;
2779
2780 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2781 }
2782
2783 static void
2784 dri2_unload(_EGLDriver *drv)
2785 {
2786 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2787
2788 if (dri2_drv->handle)
2789 dlclose(dri2_drv->handle);
2790 free(dri2_drv);
2791 }
2792
2793 static EGLBoolean
2794 dri2_load(_EGLDriver *drv)
2795 {
2796 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2797 #ifdef HAVE_ANDROID_PLATFORM
2798 const char *libname = "libglapi.so";
2799 #elif defined(__APPLE__)
2800 const char *libname = "libglapi.0.dylib";
2801 #elif defined(__CYGWIN__)
2802 const char *libname = "cygglapi-0.dll";
2803 #else
2804 const char *libname = "libglapi.so.0";
2805 #endif
2806 void *handle;
2807
2808 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2809 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2810 if (handle) {
2811 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2812 dlsym(handle, "_glapi_get_proc_address");
2813 if (!dri2_drv->get_proc_address || !libname) {
2814 /* no need to keep a reference */
2815 dlclose(handle);
2816 handle = NULL;
2817 }
2818 }
2819
2820 /* if glapi is not available, loading DRI drivers will fail */
2821 if (!dri2_drv->get_proc_address) {
2822 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2823 return EGL_FALSE;
2824 }
2825
2826 dri2_drv->glFlush = (void (*)(void))
2827 dri2_drv->get_proc_address("glFlush");
2828
2829 dri2_drv->handle = handle;
2830
2831 return EGL_TRUE;
2832 }
2833
2834 /**
2835 * This is the main entrypoint into the driver, called by libEGL.
2836 * Create a new _EGLDriver object and init its dispatch table.
2837 */
2838 _EGLDriver *
2839 _eglBuiltInDriverDRI2(const char *args)
2840 {
2841 struct dri2_egl_driver *dri2_drv;
2842
2843 (void) args;
2844
2845 dri2_drv = calloc(1, sizeof *dri2_drv);
2846 if (!dri2_drv)
2847 return NULL;
2848
2849 if (!dri2_load(&dri2_drv->base)) {
2850 free(dri2_drv);
2851 return NULL;
2852 }
2853
2854 _eglInitDriverFallbacks(&dri2_drv->base);
2855 dri2_drv->base.API.Initialize = dri2_initialize;
2856 dri2_drv->base.API.Terminate = dri2_terminate;
2857 dri2_drv->base.API.CreateContext = dri2_create_context;
2858 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2859 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2860 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2861 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2862 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2863 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2864 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2865 dri2_drv->base.API.WaitClient = dri2_wait_client;
2866 dri2_drv->base.API.WaitNative = dri2_wait_native;
2867 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2868 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2869 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2870 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2871 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2872 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2873 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2874 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2875 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2876 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2877 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2878 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2879 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2880 #ifdef HAVE_LIBDRM
2881 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2882 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2883 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2884 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2885 #endif
2886 #ifdef HAVE_WAYLAND_PLATFORM
2887 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2888 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2889 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2890 #endif
2891 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2892 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2893 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2894 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2895 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2896 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2897 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2898 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2899
2900 dri2_drv->base.Name = "DRI2";
2901 dri2_drv->base.Unload = dri2_unload;
2902
2903 return &dri2_drv->base;
2904 }