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egl: Rename MESA_configless_context bit to KHR_no_config_context
[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_no_config_context = EGL_TRUE;
607 disp->Extensions.KHR_surfaceless_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->driver_name);
862
863 #ifdef HAVE_WAYLAND_PLATFORM
864 free(dri2_dpy->device_name);
865 #endif
866
867 switch (disp->Platform) {
868 #ifdef HAVE_X11_PLATFORM
869 case _EGL_PLATFORM_X11:
870 if (dri2_dpy->own_device) {
871 xcb_disconnect(dri2_dpy->conn);
872 }
873 break;
874 #endif
875 #ifdef HAVE_DRM_PLATFORM
876 case _EGL_PLATFORM_DRM:
877 if (dri2_dpy->own_device) {
878 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
879 }
880 break;
881 #endif
882 #ifdef HAVE_WAYLAND_PLATFORM
883 case _EGL_PLATFORM_WAYLAND:
884 if (dri2_dpy->wl_drm)
885 wl_drm_destroy(dri2_dpy->wl_drm);
886 if (dri2_dpy->wl_shm)
887 wl_shm_destroy(dri2_dpy->wl_shm);
888 wl_registry_destroy(dri2_dpy->wl_registry);
889 wl_event_queue_destroy(dri2_dpy->wl_queue);
890 if (dri2_dpy->own_device) {
891 wl_display_disconnect(dri2_dpy->wl_dpy);
892 }
893 break;
894 #endif
895 default:
896 break;
897 }
898
899 /* The drm platform does not create the screen/driver_configs but reuses
900 * the ones from the gbm device. As such the gbm itself is responsible
901 * for the cleanup.
902 */
903 if (disp->Platform != _EGL_PLATFORM_DRM) {
904 for (i = 0; dri2_dpy->driver_configs[i]; i++)
905 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
906 free(dri2_dpy->driver_configs);
907 }
908 free(dri2_dpy);
909 disp->DriverData = NULL;
910 }
911
912 /**
913 * Called via eglTerminate(), drv->API.Terminate().
914 *
915 * This must be guaranteed to be called exactly once, even if eglTerminate is
916 * called many times (without a eglInitialize in between).
917 */
918 static EGLBoolean
919 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
920 {
921 /* Release all non-current Context/Surfaces. */
922 _eglReleaseDisplayResources(drv, disp);
923
924 dri2_display_release(disp);
925
926 return EGL_TRUE;
927 }
928
929 /**
930 * Set the error code after a call to
931 * dri2_egl_display::dri2::createContextAttribs.
932 */
933 static void
934 dri2_create_context_attribs_error(int dri_error)
935 {
936 EGLint egl_error;
937
938 switch (dri_error) {
939 case __DRI_CTX_ERROR_SUCCESS:
940 return;
941
942 case __DRI_CTX_ERROR_NO_MEMORY:
943 egl_error = EGL_BAD_ALLOC;
944 break;
945
946 /* From the EGL_KHR_create_context spec, section "Errors":
947 *
948 * * If <config> does not support a client API context compatible
949 * with the requested API major and minor version, [...] context flags,
950 * and context reset notification behavior (for client API types where
951 * these attributes are supported), then an EGL_BAD_MATCH error is
952 * generated.
953 *
954 * * If an OpenGL ES context is requested and the values for
955 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
956 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
957 * is not defined, than an EGL_BAD_MATCH error is generated.
958 *
959 * * If an OpenGL context is requested, the requested version is
960 * greater than 3.2, and the value for attribute
961 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
962 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
963 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
964 * one of these bits set; or if the implementation does not support
965 * the requested profile, then an EGL_BAD_MATCH error is generated.
966 */
967 case __DRI_CTX_ERROR_BAD_API:
968 case __DRI_CTX_ERROR_BAD_VERSION:
969 case __DRI_CTX_ERROR_BAD_FLAG:
970 egl_error = EGL_BAD_MATCH;
971 break;
972
973 /* From the EGL_KHR_create_context spec, section "Errors":
974 *
975 * * If an attribute name or attribute value in <attrib_list> is not
976 * recognized (including unrecognized bits in bitmask attributes),
977 * then an EGL_BAD_ATTRIBUTE error is generated."
978 */
979 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
980 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
981 egl_error = EGL_BAD_ATTRIBUTE;
982 break;
983
984 default:
985 assert(0);
986 egl_error = EGL_BAD_MATCH;
987 break;
988 }
989
990 _eglError(egl_error, "dri2_create_context");
991 }
992
993 static bool
994 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
995 struct dri2_egl_display *dri2_dpy,
996 uint32_t *ctx_attribs,
997 unsigned *num_attribs)
998 {
999 int pos = 0;
1000
1001 assert(*num_attribs >= 8);
1002
1003 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1004 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1005 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1006 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1007
1008 if (dri2_ctx->base.Flags != 0) {
1009 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1010 * extension, don't even try to send it the robust-access flag.
1011 * It may explode. Instead, generate the required EGL error here.
1012 */
1013 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1014 && !dri2_dpy->robustness) {
1015 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1016 return false;
1017 }
1018
1019 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1020 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1021 }
1022
1023 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1024 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1025 * extension, don't even try to send it a reset strategy. It may
1026 * explode. Instead, generate the required EGL error here.
1027 */
1028 if (!dri2_dpy->robustness) {
1029 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1030 return false;
1031 }
1032
1033 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1034 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1035 }
1036
1037 *num_attribs = pos;
1038
1039 return true;
1040 }
1041
1042 /**
1043 * Called via eglCreateContext(), drv->API.CreateContext().
1044 */
1045 static _EGLContext *
1046 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1047 _EGLContext *share_list, const EGLint *attrib_list)
1048 {
1049 struct dri2_egl_context *dri2_ctx;
1050 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1051 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1052 __DRIcontext *shared =
1053 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1054 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1055 const __DRIconfig *dri_config;
1056 int api;
1057
1058 (void) drv;
1059
1060 dri2_ctx = malloc(sizeof *dri2_ctx);
1061 if (!dri2_ctx) {
1062 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1063 return NULL;
1064 }
1065
1066 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1067 goto cleanup;
1068
1069 switch (dri2_ctx->base.ClientAPI) {
1070 case EGL_OPENGL_ES_API:
1071 switch (dri2_ctx->base.ClientMajorVersion) {
1072 case 1:
1073 api = __DRI_API_GLES;
1074 break;
1075 case 2:
1076 api = __DRI_API_GLES2;
1077 break;
1078 case 3:
1079 api = __DRI_API_GLES3;
1080 break;
1081 default:
1082 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1083 free(dri2_ctx);
1084 return NULL;
1085 }
1086 break;
1087 case EGL_OPENGL_API:
1088 if ((dri2_ctx->base.ClientMajorVersion >= 4
1089 || (dri2_ctx->base.ClientMajorVersion == 3
1090 && dri2_ctx->base.ClientMinorVersion >= 2))
1091 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1092 api = __DRI_API_OPENGL_CORE;
1093 else
1094 api = __DRI_API_OPENGL;
1095 break;
1096 default:
1097 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1098 free(dri2_ctx);
1099 return NULL;
1100 }
1101
1102 if (conf != NULL) {
1103 /* The config chosen here isn't necessarily
1104 * used for surfaces later.
1105 * A pixmap surface will use the single config.
1106 * This opportunity depends on disabling the
1107 * doubleBufferMode check in
1108 * src/mesa/main/context.c:check_compatible()
1109 */
1110 if (dri2_config->dri_double_config[0])
1111 dri_config = dri2_config->dri_double_config[0];
1112 else
1113 dri_config = dri2_config->dri_single_config[0];
1114
1115 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1116 * makes sure the back buffer will always be used.
1117 */
1118 if (conf->SurfaceType & EGL_WINDOW_BIT)
1119 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1120 }
1121 else
1122 dri_config = NULL;
1123
1124 if (dri2_dpy->image_driver) {
1125 unsigned error;
1126 unsigned num_attribs = 8;
1127 uint32_t ctx_attribs[8];
1128
1129 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1130 &num_attribs))
1131 goto cleanup;
1132
1133 dri2_ctx->dri_context =
1134 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1135 api,
1136 dri_config,
1137 shared,
1138 num_attribs / 2,
1139 ctx_attribs,
1140 & error,
1141 dri2_ctx);
1142 dri2_create_context_attribs_error(error);
1143 } else if (dri2_dpy->dri2) {
1144 if (dri2_dpy->dri2->base.version >= 3) {
1145 unsigned error;
1146 unsigned num_attribs = 8;
1147 uint32_t ctx_attribs[8];
1148
1149 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1150 &num_attribs))
1151 goto cleanup;
1152
1153 dri2_ctx->dri_context =
1154 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1155 api,
1156 dri_config,
1157 shared,
1158 num_attribs / 2,
1159 ctx_attribs,
1160 & error,
1161 dri2_ctx);
1162 dri2_create_context_attribs_error(error);
1163 } else {
1164 dri2_ctx->dri_context =
1165 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1166 api,
1167 dri_config,
1168 shared,
1169 dri2_ctx);
1170 }
1171 } else {
1172 assert(dri2_dpy->swrast);
1173 if (dri2_dpy->swrast->base.version >= 3) {
1174 unsigned error;
1175 unsigned num_attribs = 8;
1176 uint32_t ctx_attribs[8];
1177
1178 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1179 &num_attribs))
1180 goto cleanup;
1181
1182 dri2_ctx->dri_context =
1183 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1184 api,
1185 dri_config,
1186 shared,
1187 num_attribs / 2,
1188 ctx_attribs,
1189 & error,
1190 dri2_ctx);
1191 dri2_create_context_attribs_error(error);
1192 } else {
1193 dri2_ctx->dri_context =
1194 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1195 api,
1196 dri_config,
1197 shared,
1198 dri2_ctx);
1199 }
1200 }
1201
1202 if (!dri2_ctx->dri_context)
1203 goto cleanup;
1204
1205 return &dri2_ctx->base;
1206
1207 cleanup:
1208 free(dri2_ctx);
1209 return NULL;
1210 }
1211
1212 /**
1213 * Called via eglDestroyContext(), drv->API.DestroyContext().
1214 */
1215 static EGLBoolean
1216 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1217 {
1218 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1219 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1220
1221 if (_eglPutContext(ctx)) {
1222 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1223 free(dri2_ctx);
1224 }
1225
1226 return EGL_TRUE;
1227 }
1228
1229 /**
1230 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1231 */
1232 static EGLBoolean
1233 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1234 _EGLSurface *rsurf, _EGLContext *ctx)
1235 {
1236 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1237 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1238 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1239 _EGLContext *old_ctx;
1240 _EGLSurface *old_dsurf, *old_rsurf;
1241 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1242 __DRIdrawable *ddraw, *rdraw;
1243 __DRIcontext *cctx;
1244 EGLBoolean unbind;
1245
1246 if (!dri2_dpy)
1247 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1248
1249 /* make new bindings */
1250 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1251 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1252 return EGL_FALSE;
1253 }
1254
1255 /* flush before context switch */
1256 if (old_ctx && dri2_drv->glFlush)
1257 dri2_drv->glFlush();
1258
1259 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1260 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1261 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1262
1263 if (old_ctx) {
1264 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1265 dri2_dpy->core->unbindContext(old_cctx);
1266 }
1267
1268 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1269
1270 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1271 if (old_dsurf)
1272 drv->API.DestroySurface(drv, disp, old_dsurf);
1273 if (old_rsurf)
1274 drv->API.DestroySurface(drv, disp, old_rsurf);
1275
1276 if (!unbind)
1277 dri2_dpy->ref_count++;
1278 if (old_ctx) {
1279 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1280 drv->API.DestroyContext(drv, disp, old_ctx);
1281 dri2_display_release(old_disp);
1282 }
1283
1284 return EGL_TRUE;
1285 } else {
1286 /* undo the previous _eglBindContext */
1287 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1288 assert(&dri2_ctx->base == ctx &&
1289 tmp_dsurf == dsurf &&
1290 tmp_rsurf == rsurf);
1291
1292 _eglPutSurface(dsurf);
1293 _eglPutSurface(rsurf);
1294 _eglPutContext(ctx);
1295
1296 _eglPutSurface(old_dsurf);
1297 _eglPutSurface(old_rsurf);
1298 _eglPutContext(old_ctx);
1299
1300 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1301 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1302 * as EGL_SUCCESS.
1303 */
1304 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1305 }
1306 }
1307
1308 __DRIdrawable *
1309 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1310 {
1311 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1312
1313 return dri2_surf->dri_drawable;
1314 }
1315
1316 /*
1317 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1318 */
1319 static _EGLProc
1320 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1321 {
1322 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1323
1324 return dri2_drv->get_proc_address(procname);
1325 }
1326
1327 static _EGLSurface*
1328 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1329 _EGLConfig *conf, void *native_window,
1330 const EGLint *attrib_list)
1331 {
1332 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1333 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1334 attrib_list);
1335 }
1336
1337 static _EGLSurface*
1338 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1339 _EGLConfig *conf, void *native_pixmap,
1340 const EGLint *attrib_list)
1341 {
1342 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1343 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1344 attrib_list);
1345 }
1346
1347 static _EGLSurface*
1348 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1349 _EGLConfig *conf, const EGLint *attrib_list)
1350 {
1351 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1352 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1353 }
1354
1355 static EGLBoolean
1356 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1357 {
1358 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1359 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1360 }
1361
1362 static EGLBoolean
1363 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1364 EGLint interval)
1365 {
1366 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1367 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1368 }
1369
1370 /**
1371 * Asks the client API to flush any rendering to the drawable so that we can
1372 * do our swapbuffers.
1373 */
1374 void
1375 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1376 {
1377 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1378 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1379
1380 if (dri2_dpy->flush) {
1381 if (dri2_dpy->flush->base.version >= 4) {
1382 /* We know there's a current context because:
1383 *
1384 * "If surface is not bound to the calling thread’s current
1385 * context, an EGL_BAD_SURFACE error is generated."
1386 */
1387 _EGLContext *ctx = _eglGetCurrentContext();
1388 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1389
1390 /* From the EGL 1.4 spec (page 52):
1391 *
1392 * "The contents of ancillary buffers are always undefined
1393 * after calling eglSwapBuffers."
1394 */
1395 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1396 dri_drawable,
1397 __DRI2_FLUSH_DRAWABLE |
1398 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1399 __DRI2_THROTTLE_SWAPBUFFER);
1400 } else {
1401 dri2_dpy->flush->flush(dri_drawable);
1402 }
1403 }
1404 }
1405
1406 static EGLBoolean
1407 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1408 {
1409 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1410 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1411 }
1412
1413 static EGLBoolean
1414 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1415 _EGLSurface *surf,
1416 const EGLint *rects, EGLint n_rects)
1417 {
1418 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1419 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1420 rects, n_rects);
1421 }
1422
1423 static EGLBoolean
1424 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1425 EGLint numRects, const EGLint *rects)
1426 {
1427 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1428 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1429 }
1430
1431 static EGLBoolean
1432 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1433 EGLint x, EGLint y, EGLint width, EGLint height)
1434 {
1435 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1436 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1437 }
1438
1439 static EGLBoolean
1440 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1441 void *native_pixmap_target)
1442 {
1443 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1444 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1445 }
1446
1447 static EGLint
1448 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1449 {
1450 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1451 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1452 }
1453
1454 static EGLBoolean
1455 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1456 {
1457 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1458 _EGLSurface *surf = ctx->DrawSurface;
1459 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1460
1461 (void) drv;
1462
1463 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1464 * we need to copy fake to real here.*/
1465
1466 if (dri2_dpy->flush != NULL)
1467 dri2_dpy->flush->flush(dri_drawable);
1468
1469 return EGL_TRUE;
1470 }
1471
1472 static EGLBoolean
1473 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1474 {
1475 (void) drv;
1476 (void) disp;
1477
1478 if (engine != EGL_CORE_NATIVE_ENGINE)
1479 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1480 /* glXWaitX(); */
1481
1482 return EGL_TRUE;
1483 }
1484
1485 static EGLBoolean
1486 dri2_bind_tex_image(_EGLDriver *drv,
1487 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1488 {
1489 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1490 struct dri2_egl_context *dri2_ctx;
1491 _EGLContext *ctx;
1492 GLint format, target;
1493 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1494
1495 ctx = _eglGetCurrentContext();
1496 dri2_ctx = dri2_egl_context(ctx);
1497
1498 if (!_eglBindTexImage(drv, disp, surf, buffer))
1499 return EGL_FALSE;
1500
1501 switch (surf->TextureFormat) {
1502 case EGL_TEXTURE_RGB:
1503 format = __DRI_TEXTURE_FORMAT_RGB;
1504 break;
1505 case EGL_TEXTURE_RGBA:
1506 format = __DRI_TEXTURE_FORMAT_RGBA;
1507 break;
1508 default:
1509 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1510 format = __DRI_TEXTURE_FORMAT_RGBA;
1511 }
1512
1513 switch (surf->TextureTarget) {
1514 case EGL_TEXTURE_2D:
1515 target = GL_TEXTURE_2D;
1516 break;
1517 default:
1518 target = GL_TEXTURE_2D;
1519 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1520 }
1521
1522 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1523 target, format,
1524 dri_drawable);
1525
1526 return EGL_TRUE;
1527 }
1528
1529 static EGLBoolean
1530 dri2_release_tex_image(_EGLDriver *drv,
1531 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1532 {
1533 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1534 struct dri2_egl_context *dri2_ctx;
1535 _EGLContext *ctx;
1536 GLint target;
1537 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1538
1539 ctx = _eglGetCurrentContext();
1540 dri2_ctx = dri2_egl_context(ctx);
1541
1542 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1543 return EGL_FALSE;
1544
1545 switch (surf->TextureTarget) {
1546 case EGL_TEXTURE_2D:
1547 target = GL_TEXTURE_2D;
1548 break;
1549 default:
1550 assert(0);
1551 }
1552
1553 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1554 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1555 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1556 target,
1557 dri_drawable);
1558 }
1559
1560 return EGL_TRUE;
1561 }
1562
1563 static _EGLImage*
1564 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1565 EGLenum target, EGLClientBuffer buffer,
1566 const EGLint *attr_list)
1567 {
1568 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1569 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1570 attr_list);
1571 }
1572
1573 static _EGLImage *
1574 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1575 {
1576 struct dri2_egl_image *dri2_img;
1577
1578 if (dri_image == NULL) {
1579 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1580 return NULL;
1581 }
1582
1583 dri2_img = malloc(sizeof *dri2_img);
1584 if (!dri2_img) {
1585 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1586 return NULL;
1587 }
1588
1589 if (!_eglInitImage(&dri2_img->base, disp)) {
1590 free(dri2_img);
1591 return NULL;
1592 }
1593
1594 dri2_img->dri_image = dri_image;
1595
1596 return &dri2_img->base;
1597 }
1598
1599 static _EGLImage *
1600 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1601 EGLClientBuffer buffer,
1602 const EGLint *attr_list)
1603 {
1604 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1605 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1606 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1607 __DRIimage *dri_image;
1608
1609 if (renderbuffer == 0) {
1610 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1611 return EGL_NO_IMAGE_KHR;
1612 }
1613
1614 dri_image =
1615 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1616 renderbuffer, NULL);
1617
1618 return dri2_create_image_from_dri(disp, dri_image);
1619 }
1620
1621 #ifdef HAVE_WAYLAND_PLATFORM
1622
1623 /* This structure describes how a wl_buffer maps to one or more
1624 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1625 * offsets and strides of the planes in the buffer. This table maps a
1626 * wl_drm format code to a description of the planes in the buffer
1627 * that lets us create a __DRIimage for each of the planes. */
1628
1629 static const struct wl_drm_components_descriptor {
1630 uint32_t dri_components;
1631 EGLint components;
1632 int nplanes;
1633 } wl_drm_components[] = {
1634 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1635 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1636 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1637 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1638 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1639 };
1640
1641 static _EGLImage *
1642 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1643 EGLClientBuffer _buffer,
1644 const EGLint *attr_list)
1645 {
1646 struct wl_drm_buffer *buffer;
1647 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1648 const struct wl_drm_components_descriptor *f;
1649 __DRIimage *dri_image;
1650 _EGLImageAttribs attrs;
1651 EGLint err;
1652 int32_t plane;
1653
1654 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1655 (struct wl_resource *) _buffer);
1656 if (!buffer)
1657 return NULL;
1658
1659 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1660 plane = attrs.PlaneWL;
1661 if (err != EGL_SUCCESS) {
1662 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1663 return NULL;
1664 }
1665
1666 f = buffer->driver_format;
1667 if (plane < 0 || plane >= f->nplanes) {
1668 _eglError(EGL_BAD_PARAMETER,
1669 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1670 return NULL;
1671 }
1672
1673 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1674
1675 if (dri_image == NULL) {
1676 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1677 return NULL;
1678 }
1679
1680 return dri2_create_image_from_dri(disp, dri_image);
1681 }
1682 #endif
1683
1684 static EGLBoolean
1685 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1686 EGLuint64KHR *ust, EGLuint64KHR *msc,
1687 EGLuint64KHR *sbc)
1688 {
1689 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1690 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1691 }
1692
1693 /**
1694 * Set the error code after a call to
1695 * dri2_egl_image::dri_image::createImageFromTexture.
1696 */
1697 static void
1698 dri2_create_image_khr_texture_error(int dri_error)
1699 {
1700 EGLint egl_error;
1701
1702 switch (dri_error) {
1703 case __DRI_IMAGE_ERROR_SUCCESS:
1704 return;
1705
1706 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1707 egl_error = EGL_BAD_ALLOC;
1708 break;
1709
1710 case __DRI_IMAGE_ERROR_BAD_MATCH:
1711 egl_error = EGL_BAD_MATCH;
1712 break;
1713
1714 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1715 egl_error = EGL_BAD_PARAMETER;
1716 break;
1717
1718 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1719 egl_error = EGL_BAD_ACCESS;
1720 break;
1721
1722 default:
1723 assert(0);
1724 egl_error = EGL_BAD_MATCH;
1725 break;
1726 }
1727
1728 _eglError(egl_error, "dri2_create_image_khr_texture");
1729 }
1730
1731 static _EGLImage *
1732 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1733 EGLenum target,
1734 EGLClientBuffer buffer,
1735 const EGLint *attr_list)
1736 {
1737 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1738 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1739 struct dri2_egl_image *dri2_img;
1740 GLuint texture = (GLuint) (uintptr_t) buffer;
1741 _EGLImageAttribs attrs;
1742 GLuint depth;
1743 GLenum gl_target;
1744 unsigned error;
1745
1746 if (texture == 0) {
1747 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1748 return EGL_NO_IMAGE_KHR;
1749 }
1750
1751 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1752 return EGL_NO_IMAGE_KHR;
1753
1754 switch (target) {
1755 case EGL_GL_TEXTURE_2D_KHR:
1756 depth = 0;
1757 gl_target = GL_TEXTURE_2D;
1758 break;
1759 case EGL_GL_TEXTURE_3D_KHR:
1760 if (disp->Extensions.KHR_gl_texture_3D_image) {
1761 depth = attrs.GLTextureZOffset;
1762 gl_target = GL_TEXTURE_3D;
1763 break;
1764 }
1765 else {
1766 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1767 return EGL_NO_IMAGE_KHR;
1768 }
1769 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1770 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1771 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1772 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1773 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1774 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1775 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1776 gl_target = GL_TEXTURE_CUBE_MAP;
1777 break;
1778 default:
1779 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1780 return EGL_NO_IMAGE_KHR;
1781 }
1782
1783 dri2_img = malloc(sizeof *dri2_img);
1784 if (!dri2_img) {
1785 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1786 return EGL_NO_IMAGE_KHR;
1787 }
1788
1789 if (!_eglInitImage(&dri2_img->base, disp)) {
1790 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1791 free(dri2_img);
1792 return EGL_NO_IMAGE_KHR;
1793 }
1794
1795 dri2_img->dri_image =
1796 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1797 gl_target,
1798 texture,
1799 depth,
1800 attrs.GLTextureLevel,
1801 &error,
1802 dri2_img);
1803 dri2_create_image_khr_texture_error(error);
1804
1805 if (!dri2_img->dri_image) {
1806 free(dri2_img);
1807 return EGL_NO_IMAGE_KHR;
1808 }
1809 return &dri2_img->base;
1810 }
1811
1812 static EGLBoolean
1813 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1814 EGLint attribute, EGLint *value)
1815 {
1816 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1817 if (!dri2_dpy->vtbl->query_surface)
1818 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1819 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1820 }
1821
1822 static struct wl_buffer*
1823 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1824 _EGLImage *img)
1825 {
1826 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1827 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1828 }
1829
1830 #ifdef HAVE_LIBDRM
1831 static _EGLImage *
1832 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1833 EGLClientBuffer buffer, const EGLint *attr_list)
1834 {
1835 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1836 EGLint format, name, pitch, err;
1837 _EGLImageAttribs attrs;
1838 __DRIimage *dri_image;
1839
1840 name = (EGLint) (uintptr_t) buffer;
1841
1842 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1843 if (err != EGL_SUCCESS)
1844 return NULL;
1845
1846 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1847 attrs.DRMBufferStrideMESA <= 0) {
1848 _eglError(EGL_BAD_PARAMETER,
1849 "bad width, height or stride");
1850 return NULL;
1851 }
1852
1853 switch (attrs.DRMBufferFormatMESA) {
1854 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1855 format = __DRI_IMAGE_FORMAT_ARGB8888;
1856 pitch = attrs.DRMBufferStrideMESA;
1857 break;
1858 default:
1859 _eglError(EGL_BAD_PARAMETER,
1860 "dri2_create_image_khr: unsupported pixmap depth");
1861 return NULL;
1862 }
1863
1864 dri_image =
1865 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1866 attrs.Width,
1867 attrs.Height,
1868 format,
1869 name,
1870 pitch,
1871 NULL);
1872
1873 return dri2_create_image_from_dri(disp, dri_image);
1874 }
1875
1876 static EGLBoolean
1877 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1878 {
1879 unsigned i;
1880
1881 /**
1882 * The spec says:
1883 *
1884 * "Required attributes and their values are as follows:
1885 *
1886 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1887 *
1888 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1889 * by drm_fourcc.h and used as the pixel_format parameter of the
1890 * drm_mode_fb_cmd2 ioctl."
1891 *
1892 * and
1893 *
1894 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1895 * incomplete, EGL_BAD_PARAMETER is generated."
1896 */
1897 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1898 !attrs->DMABufFourCC.IsPresent) {
1899 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1900 return EGL_FALSE;
1901 }
1902
1903 /**
1904 * Also:
1905 *
1906 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1907 * specified for a plane's pitch or offset isn't supported by EGL,
1908 * EGL_BAD_ACCESS is generated."
1909 */
1910 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1911 if (attrs->DMABufPlanePitches[i].IsPresent &&
1912 attrs->DMABufPlanePitches[i].Value <= 0) {
1913 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1914 return EGL_FALSE;
1915 }
1916 }
1917
1918 return EGL_TRUE;
1919 }
1920
1921 /* Returns the total number of file descriptors. Zero indicates an error. */
1922 static unsigned
1923 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1924 {
1925 unsigned i, plane_n;
1926
1927 switch (attrs->DMABufFourCC.Value) {
1928 case DRM_FORMAT_R8:
1929 case DRM_FORMAT_RG88:
1930 case DRM_FORMAT_GR88:
1931 case DRM_FORMAT_RGB332:
1932 case DRM_FORMAT_BGR233:
1933 case DRM_FORMAT_XRGB4444:
1934 case DRM_FORMAT_XBGR4444:
1935 case DRM_FORMAT_RGBX4444:
1936 case DRM_FORMAT_BGRX4444:
1937 case DRM_FORMAT_ARGB4444:
1938 case DRM_FORMAT_ABGR4444:
1939 case DRM_FORMAT_RGBA4444:
1940 case DRM_FORMAT_BGRA4444:
1941 case DRM_FORMAT_XRGB1555:
1942 case DRM_FORMAT_XBGR1555:
1943 case DRM_FORMAT_RGBX5551:
1944 case DRM_FORMAT_BGRX5551:
1945 case DRM_FORMAT_ARGB1555:
1946 case DRM_FORMAT_ABGR1555:
1947 case DRM_FORMAT_RGBA5551:
1948 case DRM_FORMAT_BGRA5551:
1949 case DRM_FORMAT_RGB565:
1950 case DRM_FORMAT_BGR565:
1951 case DRM_FORMAT_RGB888:
1952 case DRM_FORMAT_BGR888:
1953 case DRM_FORMAT_XRGB8888:
1954 case DRM_FORMAT_XBGR8888:
1955 case DRM_FORMAT_RGBX8888:
1956 case DRM_FORMAT_BGRX8888:
1957 case DRM_FORMAT_ARGB8888:
1958 case DRM_FORMAT_ABGR8888:
1959 case DRM_FORMAT_RGBA8888:
1960 case DRM_FORMAT_BGRA8888:
1961 case DRM_FORMAT_XRGB2101010:
1962 case DRM_FORMAT_XBGR2101010:
1963 case DRM_FORMAT_RGBX1010102:
1964 case DRM_FORMAT_BGRX1010102:
1965 case DRM_FORMAT_ARGB2101010:
1966 case DRM_FORMAT_ABGR2101010:
1967 case DRM_FORMAT_RGBA1010102:
1968 case DRM_FORMAT_BGRA1010102:
1969 case DRM_FORMAT_YUYV:
1970 case DRM_FORMAT_YVYU:
1971 case DRM_FORMAT_UYVY:
1972 case DRM_FORMAT_VYUY:
1973 plane_n = 1;
1974 break;
1975 case DRM_FORMAT_NV12:
1976 case DRM_FORMAT_NV21:
1977 case DRM_FORMAT_NV16:
1978 case DRM_FORMAT_NV61:
1979 plane_n = 2;
1980 break;
1981 case DRM_FORMAT_YUV410:
1982 case DRM_FORMAT_YVU410:
1983 case DRM_FORMAT_YUV411:
1984 case DRM_FORMAT_YVU411:
1985 case DRM_FORMAT_YUV420:
1986 case DRM_FORMAT_YVU420:
1987 case DRM_FORMAT_YUV422:
1988 case DRM_FORMAT_YVU422:
1989 case DRM_FORMAT_YUV444:
1990 case DRM_FORMAT_YVU444:
1991 plane_n = 3;
1992 break;
1993 default:
1994 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1995 return 0;
1996 }
1997
1998 /**
1999 * The spec says:
2000 *
2001 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2002 * incomplete, EGL_BAD_PARAMETER is generated."
2003 */
2004 for (i = 0; i < plane_n; ++i) {
2005 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2006 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2007 !attrs->DMABufPlanePitches[i].IsPresent) {
2008 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2009 return 0;
2010 }
2011 }
2012
2013 /**
2014 * The spec also says:
2015 *
2016 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2017 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2018 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2019 * attributes are specified."
2020 */
2021 for (i = plane_n; i < 3; ++i) {
2022 if (attrs->DMABufPlaneFds[i].IsPresent ||
2023 attrs->DMABufPlaneOffsets[i].IsPresent ||
2024 attrs->DMABufPlanePitches[i].IsPresent) {
2025 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2026 return 0;
2027 }
2028 }
2029
2030 return plane_n;
2031 }
2032
2033 /**
2034 * The spec says:
2035 *
2036 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2037 * EGL will take a reference to the dma_buf(s) which it will release at any
2038 * time while the EGLDisplay is initialized. It is the responsibility of the
2039 * application to close the dma_buf file descriptors."
2040 *
2041 * Therefore we must never close or otherwise modify the file descriptors.
2042 */
2043 _EGLImage *
2044 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2045 EGLClientBuffer buffer, const EGLint *attr_list)
2046 {
2047 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2048 _EGLImage *res;
2049 EGLint err;
2050 _EGLImageAttribs attrs;
2051 __DRIimage *dri_image;
2052 unsigned num_fds;
2053 unsigned i;
2054 int fds[3];
2055 int pitches[3];
2056 int offsets[3];
2057 unsigned error;
2058
2059 /**
2060 * The spec says:
2061 *
2062 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2063 * error EGL_BAD_PARAMETER is generated."
2064 */
2065 if (buffer != NULL) {
2066 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2067 return NULL;
2068 }
2069
2070 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2071 if (err != EGL_SUCCESS) {
2072 _eglError(err, "bad attribute");
2073 return NULL;
2074 }
2075
2076 if (!dri2_check_dma_buf_attribs(&attrs))
2077 return NULL;
2078
2079 num_fds = dri2_check_dma_buf_format(&attrs);
2080 if (!num_fds)
2081 return NULL;
2082
2083 for (i = 0; i < num_fds; ++i) {
2084 fds[i] = attrs.DMABufPlaneFds[i].Value;
2085 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2086 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2087 }
2088
2089 dri_image =
2090 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2091 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2092 fds, num_fds, pitches, offsets,
2093 attrs.DMABufYuvColorSpaceHint.Value,
2094 attrs.DMABufSampleRangeHint.Value,
2095 attrs.DMABufChromaHorizontalSiting.Value,
2096 attrs.DMABufChromaVerticalSiting.Value,
2097 &error,
2098 NULL);
2099 dri2_create_image_khr_texture_error(error);
2100
2101 if (!dri_image)
2102 return EGL_NO_IMAGE_KHR;
2103
2104 res = dri2_create_image_from_dri(disp, dri_image);
2105
2106 return res;
2107 }
2108 static _EGLImage *
2109 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2110 const EGLint *attr_list)
2111 {
2112 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2113 struct dri2_egl_image *dri2_img;
2114 _EGLImageAttribs attrs;
2115 unsigned int dri_use, valid_mask;
2116 int format;
2117 EGLint err = EGL_SUCCESS;
2118
2119 (void) drv;
2120
2121 dri2_img = malloc(sizeof *dri2_img);
2122 if (!dri2_img) {
2123 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2124 return EGL_NO_IMAGE_KHR;
2125 }
2126
2127 if (!attr_list) {
2128 err = EGL_BAD_PARAMETER;
2129 goto cleanup_img;
2130 }
2131
2132 if (!_eglInitImage(&dri2_img->base, disp)) {
2133 err = EGL_BAD_PARAMETER;
2134 goto cleanup_img;
2135 }
2136
2137 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2138 if (err != EGL_SUCCESS)
2139 goto cleanup_img;
2140
2141 if (attrs.Width <= 0 || attrs.Height <= 0) {
2142 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2143 attrs.Width, attrs.Height);
2144 goto cleanup_img;
2145 }
2146
2147 switch (attrs.DRMBufferFormatMESA) {
2148 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2149 format = __DRI_IMAGE_FORMAT_ARGB8888;
2150 break;
2151 default:
2152 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2153 attrs.DRMBufferFormatMESA);
2154 goto cleanup_img;
2155 }
2156
2157 valid_mask =
2158 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2159 EGL_DRM_BUFFER_USE_SHARE_MESA |
2160 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2161 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2162 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2163 attrs.DRMBufferUseMESA & ~valid_mask);
2164 goto cleanup_img;
2165 }
2166
2167 dri_use = 0;
2168 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2169 dri_use |= __DRI_IMAGE_USE_SHARE;
2170 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2171 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2172 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2173 dri_use |= __DRI_IMAGE_USE_CURSOR;
2174
2175 dri2_img->dri_image =
2176 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2177 attrs.Width, attrs.Height,
2178 format, dri_use, dri2_img);
2179 if (dri2_img->dri_image == NULL) {
2180 err = EGL_BAD_ALLOC;
2181 goto cleanup_img;
2182 }
2183
2184 return &dri2_img->base;
2185
2186 cleanup_img:
2187 free(dri2_img);
2188 _eglError(err, "dri2_create_drm_image_mesa");
2189
2190 return EGL_NO_IMAGE_KHR;
2191 }
2192
2193 static EGLBoolean
2194 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2195 EGLint *name, EGLint *handle, EGLint *stride)
2196 {
2197 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2198 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2199
2200 (void) drv;
2201
2202 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2203 __DRI_IMAGE_ATTRIB_NAME, name)) {
2204 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2205 return EGL_FALSE;
2206 }
2207
2208 if (handle)
2209 dri2_dpy->image->queryImage(dri2_img->dri_image,
2210 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2211
2212 if (stride)
2213 dri2_dpy->image->queryImage(dri2_img->dri_image,
2214 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2215
2216 return EGL_TRUE;
2217 }
2218
2219 static EGLBoolean
2220 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2221 _EGLImage *img,
2222 EGLint *fourcc, EGLint *nplanes,
2223 EGLuint64KHR *modifiers)
2224 {
2225 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2226 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2227
2228 (void) drv;
2229
2230
2231 if (nplanes)
2232 dri2_dpy->image->queryImage(dri2_img->dri_image,
2233 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2234 if (fourcc)
2235 dri2_dpy->image->queryImage(dri2_img->dri_image,
2236 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2237
2238 if (modifiers)
2239 *modifiers = 0;
2240
2241 return EGL_TRUE;
2242 }
2243
2244 static EGLBoolean
2245 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2246 int *fds, EGLint *strides, EGLint *offsets)
2247 {
2248 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2249 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2250
2251 (void) drv;
2252
2253 /* rework later to provide multiple fds/strides/offsets */
2254 if (fds)
2255 dri2_dpy->image->queryImage(dri2_img->dri_image,
2256 __DRI_IMAGE_ATTRIB_FD, fds);
2257
2258 if (strides)
2259 dri2_dpy->image->queryImage(dri2_img->dri_image,
2260 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2261
2262 if (offsets)
2263 offsets[0] = 0;
2264
2265 return EGL_TRUE;
2266 }
2267
2268 #endif
2269
2270 _EGLImage *
2271 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2272 _EGLContext *ctx, EGLenum target,
2273 EGLClientBuffer buffer, const EGLint *attr_list)
2274 {
2275 (void) drv;
2276
2277 switch (target) {
2278 case EGL_GL_TEXTURE_2D_KHR:
2279 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2280 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2281 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2282 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2283 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2284 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2285 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2286 case EGL_GL_TEXTURE_3D_KHR:
2287 if (disp->Extensions.KHR_gl_texture_3D_image) {
2288 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2289 }
2290 else {
2291 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2292 return EGL_NO_IMAGE_KHR;
2293 }
2294 case EGL_GL_RENDERBUFFER_KHR:
2295 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2296 #ifdef HAVE_LIBDRM
2297 case EGL_DRM_BUFFER_MESA:
2298 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2299 case EGL_LINUX_DMA_BUF_EXT:
2300 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2301 #endif
2302 #ifdef HAVE_WAYLAND_PLATFORM
2303 case EGL_WAYLAND_BUFFER_WL:
2304 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2305 #endif
2306 default:
2307 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2308 return EGL_NO_IMAGE_KHR;
2309 }
2310 }
2311
2312 static EGLBoolean
2313 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2314 {
2315 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2316 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2317
2318 (void) drv;
2319
2320 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2321 free(dri2_img);
2322
2323 return EGL_TRUE;
2324 }
2325
2326 #ifdef HAVE_WAYLAND_PLATFORM
2327
2328 static void
2329 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2330 struct wl_drm_buffer *buffer)
2331 {
2332 _EGLDisplay *disp = user_data;
2333 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2334 __DRIimage *img;
2335 int i, dri_components = 0;
2336
2337 if (fd == -1)
2338 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2339 buffer->width,
2340 buffer->height,
2341 buffer->format,
2342 (int*)&name, 1,
2343 buffer->stride,
2344 buffer->offset,
2345 NULL);
2346 else
2347 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2348 buffer->width,
2349 buffer->height,
2350 buffer->format,
2351 &fd, 1,
2352 buffer->stride,
2353 buffer->offset,
2354 NULL);
2355
2356 if (img == NULL)
2357 return;
2358
2359 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2360
2361 buffer->driver_format = NULL;
2362 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2363 if (wl_drm_components[i].dri_components == dri_components)
2364 buffer->driver_format = &wl_drm_components[i];
2365
2366 if (buffer->driver_format == NULL)
2367 dri2_dpy->image->destroyImage(img);
2368 else
2369 buffer->driver_buffer = img;
2370 }
2371
2372 static void
2373 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2374 {
2375 _EGLDisplay *disp = user_data;
2376 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2377
2378 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2379 }
2380
2381 static struct wayland_drm_callbacks wl_drm_callbacks = {
2382 .authenticate = NULL,
2383 .reference_buffer = dri2_wl_reference_buffer,
2384 .release_buffer = dri2_wl_release_buffer
2385 };
2386
2387 static EGLBoolean
2388 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2389 struct wl_display *wl_dpy)
2390 {
2391 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2392 int flags = 0;
2393 uint64_t cap;
2394
2395 (void) drv;
2396
2397 if (dri2_dpy->wl_server_drm)
2398 return EGL_FALSE;
2399
2400 wl_drm_callbacks.authenticate =
2401 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2402
2403 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2404 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2405 dri2_dpy->image->base.version >= 7 &&
2406 dri2_dpy->image->createImageFromFds != NULL)
2407 flags |= WAYLAND_DRM_PRIME;
2408
2409 dri2_dpy->wl_server_drm =
2410 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2411 &wl_drm_callbacks, disp, flags);
2412
2413 if (!dri2_dpy->wl_server_drm)
2414 return EGL_FALSE;
2415
2416 #ifdef HAVE_DRM_PLATFORM
2417 /* We have to share the wl_drm instance with gbm, so gbm can convert
2418 * wl_buffers to gbm bos. */
2419 if (dri2_dpy->gbm_dri)
2420 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2421 #endif
2422
2423 return EGL_TRUE;
2424 }
2425
2426 static EGLBoolean
2427 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2428 struct wl_display *wl_dpy)
2429 {
2430 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2431
2432 (void) drv;
2433
2434 if (!dri2_dpy->wl_server_drm)
2435 return EGL_FALSE;
2436
2437 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2438 dri2_dpy->wl_server_drm = NULL;
2439
2440 return EGL_TRUE;
2441 }
2442
2443 static EGLBoolean
2444 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2445 struct wl_resource *buffer_resource,
2446 EGLint attribute, EGLint *value)
2447 {
2448 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2449 struct wl_drm_buffer *buffer;
2450 const struct wl_drm_components_descriptor *format;
2451
2452 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2453 if (!buffer)
2454 return EGL_FALSE;
2455
2456 format = buffer->driver_format;
2457 switch (attribute) {
2458 case EGL_TEXTURE_FORMAT:
2459 *value = format->components;
2460 return EGL_TRUE;
2461 case EGL_WIDTH:
2462 *value = buffer->width;
2463 return EGL_TRUE;
2464 case EGL_HEIGHT:
2465 *value = buffer->height;
2466 return EGL_TRUE;
2467 }
2468
2469 return EGL_FALSE;
2470 }
2471 #endif
2472
2473 static void
2474 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2475 {
2476 p_atomic_inc(&sync->refcount);
2477 }
2478
2479 static void
2480 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2481 struct dri2_egl_sync *dri2_sync)
2482 {
2483 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2484 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2485 cnd_destroy(&dri2_sync->cond);
2486
2487 if (dri2_sync->fence)
2488 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2489
2490 free(dri2_sync);
2491 }
2492 }
2493
2494 static _EGLSync *
2495 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2496 EGLenum type, const EGLint *attrib_list,
2497 const EGLAttrib *attrib_list64)
2498 {
2499 _EGLContext *ctx = _eglGetCurrentContext();
2500 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2501 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2502 struct dri2_egl_sync *dri2_sync;
2503 EGLint ret;
2504 pthread_condattr_t attr;
2505
2506 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2507 if (!dri2_sync) {
2508 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2509 return NULL;
2510 }
2511
2512 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2513 attrib_list64)) {
2514 free(dri2_sync);
2515 return NULL;
2516 }
2517
2518 switch (type) {
2519 case EGL_SYNC_FENCE_KHR:
2520 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2521 if (!dri2_sync->fence) {
2522 /* Why did it fail? DRI doesn't return an error code, so we emit
2523 * a generic EGL error that doesn't communicate user error.
2524 */
2525 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2526 free(dri2_sync);
2527 return NULL;
2528 }
2529 break;
2530
2531 case EGL_SYNC_CL_EVENT_KHR:
2532 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2533 dri2_dpy->dri_screen,
2534 dri2_sync->base.CLEvent);
2535 /* this can only happen if the cl_event passed in is invalid. */
2536 if (!dri2_sync->fence) {
2537 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2538 free(dri2_sync);
2539 return NULL;
2540 }
2541
2542 /* the initial status must be "signaled" if the cl_event is signaled */
2543 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2544 dri2_sync->fence, 0, 0))
2545 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2546 break;
2547
2548 case EGL_SYNC_REUSABLE_KHR:
2549 /* intialize attr */
2550 ret = pthread_condattr_init(&attr);
2551
2552 if (ret) {
2553 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2554 free(dri2_sync);
2555 return NULL;
2556 }
2557
2558 /* change clock attribute to CLOCK_MONOTONIC */
2559 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2560
2561 if (ret) {
2562 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2563 free(dri2_sync);
2564 return NULL;
2565 }
2566
2567 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2568
2569 if (ret) {
2570 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2571 free(dri2_sync);
2572 return NULL;
2573 }
2574
2575 /* initial status of reusable sync must be "unsignaled" */
2576 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2577 break;
2578 }
2579
2580 p_atomic_set(&dri2_sync->refcount, 1);
2581 return &dri2_sync->base;
2582 }
2583
2584 static EGLBoolean
2585 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2586 {
2587 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2588 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2589 EGLint ret = EGL_TRUE;
2590 EGLint err;
2591
2592 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2593 * then unlock all threads possibly blocked by the reusable sync before
2594 * destroying it.
2595 */
2596 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2597 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2598 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2599 /* unblock all threads currently blocked by sync */
2600 err = cnd_broadcast(&dri2_sync->cond);
2601
2602 if (err) {
2603 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2604 ret = EGL_FALSE;
2605 }
2606 }
2607 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2608
2609 return ret;
2610 }
2611
2612 static EGLint
2613 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2614 EGLint flags, EGLTime timeout)
2615 {
2616 _EGLContext *ctx = _eglGetCurrentContext();
2617 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2618 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2619 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2620 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2621 unsigned wait_flags = 0;
2622
2623 /* timespecs for cnd_timedwait */
2624 struct timespec current;
2625 xtime expire;
2626
2627 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2628
2629 /* The EGL_KHR_fence_sync spec states:
2630 *
2631 * "If no context is current for the bound API,
2632 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2633 */
2634 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2635 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2636
2637 /* the sync object should take a reference while waiting */
2638 dri2_egl_ref_sync(dri2_sync);
2639
2640 switch (sync->Type) {
2641 case EGL_SYNC_FENCE_KHR:
2642 case EGL_SYNC_CL_EVENT_KHR:
2643 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2644 dri2_sync->fence, wait_flags,
2645 timeout))
2646 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2647 else
2648 ret = EGL_TIMEOUT_EXPIRED_KHR;
2649 break;
2650
2651 case EGL_SYNC_REUSABLE_KHR:
2652 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2653 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2654 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2655 if (dri2_drv->glFlush)
2656 dri2_drv->glFlush();
2657 }
2658
2659 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2660 if (timeout == EGL_FOREVER_KHR) {
2661 mtx_lock(&dri2_sync->mutex);
2662 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2663 mtx_unlock(&dri2_sync->mutex);
2664 } else {
2665 /* if reusable sync has not been yet signaled */
2666 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2667 clock_gettime(CLOCK_MONOTONIC, &current);
2668
2669 /* calculating when to expire */
2670 expire.nsec = timeout % 1000000000L;
2671 expire.sec = timeout / 1000000000L;
2672
2673 expire.nsec += current.tv_nsec;
2674 expire.sec += current.tv_sec;
2675
2676 /* expire.nsec now is a number between 0 and 1999999998 */
2677 if (expire.nsec > 999999999L) {
2678 expire.sec++;
2679 expire.nsec -= 1000000000L;
2680 }
2681
2682 mtx_lock(&dri2_sync->mutex);
2683 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2684 mtx_unlock(&dri2_sync->mutex);
2685
2686 if (ret == thrd_busy) {
2687 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2688 ret = EGL_TIMEOUT_EXPIRED_KHR;
2689 } else {
2690 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2691 ret = EGL_FALSE;
2692 }
2693 }
2694 }
2695 }
2696 break;
2697 }
2698 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2699
2700 return ret;
2701 }
2702
2703 static EGLBoolean
2704 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2705 EGLenum mode)
2706 {
2707 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2708 EGLint ret;
2709
2710 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2711 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2712 return EGL_FALSE;
2713 }
2714
2715 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2716 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2717 return EGL_FALSE;
2718 }
2719
2720 dri2_sync->base.SyncStatus = mode;
2721
2722 if (mode == EGL_SIGNALED_KHR) {
2723 ret = cnd_broadcast(&dri2_sync->cond);
2724
2725 /* fail to broadcast */
2726 if (ret) {
2727 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2728 return EGL_FALSE;
2729 }
2730 }
2731
2732 return EGL_TRUE;
2733 }
2734
2735 static EGLint
2736 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2737 {
2738 _EGLContext *ctx = _eglGetCurrentContext();
2739 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2740 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2741 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2742
2743 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2744 dri2_sync->fence, 0);
2745 return EGL_TRUE;
2746 }
2747
2748 static int
2749 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2750 struct mesa_glinterop_device_info *out)
2751 {
2752 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2753 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2754
2755 if (!dri2_dpy->interop)
2756 return MESA_GLINTEROP_UNSUPPORTED;
2757
2758 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2759 }
2760
2761 static int
2762 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2763 struct mesa_glinterop_export_in *in,
2764 struct mesa_glinterop_export_out *out)
2765 {
2766 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2767 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2768
2769 if (!dri2_dpy->interop)
2770 return MESA_GLINTEROP_UNSUPPORTED;
2771
2772 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2773 }
2774
2775 static void
2776 dri2_unload(_EGLDriver *drv)
2777 {
2778 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2779
2780 if (dri2_drv->handle)
2781 dlclose(dri2_drv->handle);
2782 free(dri2_drv);
2783 }
2784
2785 static EGLBoolean
2786 dri2_load(_EGLDriver *drv)
2787 {
2788 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2789 #ifdef HAVE_ANDROID_PLATFORM
2790 const char *libname = "libglapi.so";
2791 #elif defined(__APPLE__)
2792 const char *libname = "libglapi.0.dylib";
2793 #elif defined(__CYGWIN__)
2794 const char *libname = "cygglapi-0.dll";
2795 #else
2796 const char *libname = "libglapi.so.0";
2797 #endif
2798 void *handle;
2799
2800 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2801 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2802 if (handle) {
2803 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2804 dlsym(handle, "_glapi_get_proc_address");
2805 if (!dri2_drv->get_proc_address || !libname) {
2806 /* no need to keep a reference */
2807 dlclose(handle);
2808 handle = NULL;
2809 }
2810 }
2811
2812 /* if glapi is not available, loading DRI drivers will fail */
2813 if (!dri2_drv->get_proc_address) {
2814 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2815 return EGL_FALSE;
2816 }
2817
2818 dri2_drv->glFlush = (void (*)(void))
2819 dri2_drv->get_proc_address("glFlush");
2820
2821 dri2_drv->handle = handle;
2822
2823 return EGL_TRUE;
2824 }
2825
2826 /**
2827 * This is the main entrypoint into the driver, called by libEGL.
2828 * Create a new _EGLDriver object and init its dispatch table.
2829 */
2830 _EGLDriver *
2831 _eglBuiltInDriverDRI2(const char *args)
2832 {
2833 struct dri2_egl_driver *dri2_drv;
2834
2835 (void) args;
2836
2837 dri2_drv = calloc(1, sizeof *dri2_drv);
2838 if (!dri2_drv)
2839 return NULL;
2840
2841 if (!dri2_load(&dri2_drv->base)) {
2842 free(dri2_drv);
2843 return NULL;
2844 }
2845
2846 _eglInitDriverFallbacks(&dri2_drv->base);
2847 dri2_drv->base.API.Initialize = dri2_initialize;
2848 dri2_drv->base.API.Terminate = dri2_terminate;
2849 dri2_drv->base.API.CreateContext = dri2_create_context;
2850 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2851 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2852 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2853 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2854 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2855 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2856 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2857 dri2_drv->base.API.WaitClient = dri2_wait_client;
2858 dri2_drv->base.API.WaitNative = dri2_wait_native;
2859 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2860 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2861 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2862 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2863 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2864 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2865 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2866 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2867 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2868 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2869 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2870 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2871 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2872 #ifdef HAVE_LIBDRM
2873 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2874 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2875 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2876 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2877 #endif
2878 #ifdef HAVE_WAYLAND_PLATFORM
2879 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2880 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2881 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2882 #endif
2883 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2884 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2885 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2886 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2887 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2888 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2889 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2890 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2891
2892 dri2_drv->base.Name = "DRI2";
2893 dri2_drv->base.Unload = dri2_unload;
2894
2895 return &dri2_drv->base;
2896 }