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[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 #include "linux-dmabuf-unstable-v1-client-protocol.h"
57 #endif
58
59 #ifdef HAVE_X11_PLATFORM
60 #include "X11/Xlibint.h"
61 #endif
62
63 #include "egl_dri2.h"
64 #include "loader/loader.h"
65 #include "util/u_atomic.h"
66 #include "util/u_vector.h"
67
68 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
69 * some of the definitions here so that building Mesa won't bleeding-edge
70 * kernel headers.
71 */
72 #ifndef DRM_FORMAT_R8
73 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
74 #endif
75
76 #ifndef DRM_FORMAT_RG88
77 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
78 #endif
79
80 #ifndef DRM_FORMAT_GR88
81 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
82 #endif
83
84 #ifndef DRM_FORMAT_R16
85 #define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R 16 little endian */
86 #endif
87
88 #ifndef DRM_FORMAT_GR1616
89 #define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] R:G 16:16 little endian */
90 #endif
91
92 #ifndef DRM_FORMAT_MOD_INVALID
93 #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
94 #endif
95
96 static void
97 dri_set_background_context(void *loaderPrivate)
98 {
99 _EGLContext *ctx = _eglGetCurrentContext();
100 _EGLThreadInfo *t = _eglGetCurrentThread();
101
102 _eglBindContextToThread(ctx, t);
103 }
104
105 static GLboolean
106 dri_is_thread_safe(void *loaderPrivate)
107 {
108 struct dri2_egl_surface *dri2_surf = loaderPrivate;
109 _EGLDisplay *display = dri2_surf->base.Resource.Display;
110
111 #ifdef HAVE_X11_PLATFORM
112 Display *xdpy = (Display*)display->PlatformDisplay;
113
114 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
115 * platform
116 *
117 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
118 * It wll be NULL if XInitThreads wasn't called.
119 */
120 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
121 return false;
122 #endif
123
124 #ifdef HAVE_WAYLAND_PLATFORM
125 if (display->Platform == _EGL_PLATFORM_WAYLAND)
126 return true;
127 #endif
128
129 return true;
130 }
131
132 const __DRIbackgroundCallableExtension background_callable_extension = {
133 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
134
135 .setBackgroundContext = dri_set_background_context,
136 .isThreadSafe = dri_is_thread_safe,
137 };
138
139 const __DRIuseInvalidateExtension use_invalidate = {
140 .base = { __DRI_USE_INVALIDATE, 1 }
141 };
142
143 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
144 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
145 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
146 [__DRI_ATTRIB_RED_SIZE] = EGL_RED_SIZE,
147 [__DRI_ATTRIB_GREEN_SIZE] = EGL_GREEN_SIZE,
148 [__DRI_ATTRIB_BLUE_SIZE] = EGL_BLUE_SIZE,
149 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
150 [__DRI_ATTRIB_ALPHA_SIZE] = EGL_ALPHA_SIZE,
151 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
152 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
153 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
154 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
155 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
156 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
157 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
158 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
159 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
160 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
161 };
162
163 const __DRIconfig *
164 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
165 EGLenum colorspace)
166 {
167 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
168 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
169
170 return conf->dri_config[double_buffer][srgb];
171 }
172
173 static EGLBoolean
174 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
175 {
176 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
177 return EGL_FALSE;
178
179 if (!_eglMatchConfig(conf, criteria))
180 return EGL_FALSE;
181
182 return EGL_TRUE;
183 }
184
185 struct dri2_egl_config *
186 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
187 EGLint surface_type, const EGLint *attr_list,
188 const unsigned int *rgba_masks)
189 {
190 struct dri2_egl_config *conf;
191 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
192 _EGLConfig base;
193 unsigned int attrib, value, double_buffer;
194 bool srgb = false;
195 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
196 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
197 _EGLConfig *matching_config;
198 EGLint num_configs = 0;
199 EGLint config_id;
200
201 _eglInitConfig(&base, disp, id);
202
203 double_buffer = 0;
204 bind_to_texture_rgb = 0;
205 bind_to_texture_rgba = 0;
206
207 for (int i = 0; dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib,
208 &value); ++i) {
209 switch (attrib) {
210 case __DRI_ATTRIB_RENDER_TYPE:
211 if (value & __DRI_ATTRIB_RGBA_BIT)
212 value = EGL_RGB_BUFFER;
213 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
214 value = EGL_LUMINANCE_BUFFER;
215 else
216 return NULL;
217 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
218 break;
219
220 case __DRI_ATTRIB_CONFIG_CAVEAT:
221 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
222 value = EGL_NON_CONFORMANT_CONFIG;
223 else if (value & __DRI_ATTRIB_SLOW_BIT)
224 value = EGL_SLOW_CONFIG;
225 else
226 value = EGL_NONE;
227 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
228 break;
229
230 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
231 bind_to_texture_rgb = value;
232 break;
233
234 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
235 bind_to_texture_rgba = value;
236 break;
237
238 case __DRI_ATTRIB_DOUBLE_BUFFER:
239 double_buffer = value;
240 break;
241
242 case __DRI_ATTRIB_RED_MASK:
243 dri_masks[0] = value;
244 break;
245
246 case __DRI_ATTRIB_GREEN_MASK:
247 dri_masks[1] = value;
248 break;
249
250 case __DRI_ATTRIB_BLUE_MASK:
251 dri_masks[2] = value;
252 break;
253
254 case __DRI_ATTRIB_ALPHA_MASK:
255 dri_masks[3] = value;
256 break;
257
258 case __DRI_ATTRIB_ACCUM_RED_SIZE:
259 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
260 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
261 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
262 /* Don't expose visuals with the accumulation buffer. */
263 if (value > 0)
264 return NULL;
265 break;
266
267 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
268 srgb = value != 0;
269 if (!disp->Extensions.KHR_gl_colorspace && srgb)
270 return NULL;
271 break;
272
273 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
274 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
275 _EGL_MAX_PBUFFER_WIDTH);
276 break;
277 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
278 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
279 _EGL_MAX_PBUFFER_HEIGHT);
280 break;
281
282 default:
283 key = dri2_to_egl_attribute_map[attrib];
284 if (key != 0)
285 _eglSetConfigKey(&base, key, value);
286 break;
287 }
288 }
289
290 if (attr_list)
291 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
292 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
293
294 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
295 return NULL;
296
297 base.NativeRenderable = EGL_TRUE;
298
299 base.SurfaceType = surface_type;
300 if (surface_type & (EGL_PBUFFER_BIT |
301 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
302 base.BindToTextureRGB = bind_to_texture_rgb;
303 if (base.AlphaSize > 0)
304 base.BindToTextureRGBA = bind_to_texture_rgba;
305 }
306
307 base.RenderableType = disp->ClientAPIs;
308 base.Conformant = disp->ClientAPIs;
309
310 base.MinSwapInterval = dri2_dpy->min_swap_interval;
311 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
312
313 if (!_eglValidateConfig(&base, EGL_FALSE)) {
314 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
315 return NULL;
316 }
317
318 config_id = base.ConfigID;
319 base.ConfigID = EGL_DONT_CARE;
320 base.SurfaceType = EGL_DONT_CARE;
321 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
322 (_EGLArrayForEach) dri2_match_config, &base);
323
324 if (num_configs == 1) {
325 conf = (struct dri2_egl_config *) matching_config;
326
327 if (!conf->dri_config[double_buffer][srgb])
328 conf->dri_config[double_buffer][srgb] = dri_config;
329 else
330 /* a similar config type is already added (unlikely) => discard */
331 return NULL;
332 }
333 else if (num_configs == 0) {
334 conf = calloc(1, sizeof *conf);
335 if (conf == NULL)
336 return NULL;
337
338 conf->dri_config[double_buffer][srgb] = dri_config;
339
340 memcpy(&conf->base, &base, sizeof base);
341 conf->base.SurfaceType = 0;
342 conf->base.ConfigID = config_id;
343
344 _eglLinkConfig(&conf->base);
345 }
346 else {
347 assert(0);
348 return NULL;
349 }
350
351 if (double_buffer) {
352 surface_type &= ~EGL_PIXMAP_BIT;
353 }
354
355 /* No support for pbuffer + MSAA for now.
356 *
357 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
358 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
359 */
360 if (base.Samples) {
361 surface_type &= ~EGL_PBUFFER_BIT;
362 }
363
364 conf->base.SurfaceType |= surface_type;
365
366 return conf;
367 }
368
369 __DRIimage *
370 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
371 {
372 _EGLDisplay *disp = data;
373 struct dri2_egl_image *dri2_img;
374 _EGLImage *img;
375
376 (void) screen;
377
378 img = _eglLookupImage(image, disp);
379 if (img == NULL) {
380 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
381 return NULL;
382 }
383
384 dri2_img = dri2_egl_image(image);
385
386 return dri2_img->dri_image;
387 }
388
389 const __DRIimageLookupExtension image_lookup_extension = {
390 .base = { __DRI_IMAGE_LOOKUP, 1 },
391
392 .lookupEGLImage = dri2_lookup_egl_image
393 };
394
395 struct dri2_extension_match {
396 const char *name;
397 int version;
398 int offset;
399 };
400
401 static const struct dri2_extension_match dri3_driver_extensions[] = {
402 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
403 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
404 { NULL, 0, 0 }
405 };
406
407 static const struct dri2_extension_match dri2_driver_extensions[] = {
408 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
409 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
410 { NULL, 0, 0 }
411 };
412
413 static const struct dri2_extension_match dri2_core_extensions[] = {
414 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
415 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
416 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
417 { NULL, 0, 0 }
418 };
419
420 static const struct dri2_extension_match swrast_driver_extensions[] = {
421 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
422 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
423 { NULL, 0, 0 }
424 };
425
426 static const struct dri2_extension_match swrast_core_extensions[] = {
427 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
428 { NULL, 0, 0 }
429 };
430
431 static const struct dri2_extension_match optional_core_extensions[] = {
432 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
433 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
434 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
435 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
436 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
437 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
438 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
439 { NULL, 0, 0 }
440 };
441
442 static EGLBoolean
443 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
444 const struct dri2_extension_match *matches,
445 const __DRIextension **extensions,
446 bool optional)
447 {
448 int ret = EGL_TRUE;
449 void *field;
450
451 for (int i = 0; extensions[i]; i++) {
452 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
453 for (int j = 0; matches[j].name; j++) {
454 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
455 extensions[i]->version >= matches[j].version) {
456 field = ((char *) dri2_dpy + matches[j].offset);
457 *(const __DRIextension **) field = extensions[i];
458 _eglLog(_EGL_INFO, "found extension %s version %d",
459 extensions[i]->name, extensions[i]->version);
460 break;
461 }
462 }
463 }
464
465 for (int j = 0; matches[j].name; j++) {
466 field = ((char *) dri2_dpy + matches[j].offset);
467 if (*(const __DRIextension **) field == NULL) {
468 if (optional) {
469 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
470 matches[j].name, matches[j].version);
471 } else {
472 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
473 matches[j].name, matches[j].version);
474 ret = EGL_FALSE;
475 }
476 }
477 }
478
479 return ret;
480 }
481
482 static const __DRIextension **
483 dri2_open_driver(_EGLDisplay *disp)
484 {
485 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
486 const __DRIextension **extensions = NULL;
487 char path[PATH_MAX], *search_paths, *next, *end;
488 char *get_extensions_name;
489 const __DRIextension **(*get_extensions)(void);
490
491 search_paths = NULL;
492 if (geteuid() == getuid()) {
493 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
494 search_paths = getenv("LIBGL_DRIVERS_PATH");
495 }
496 if (search_paths == NULL)
497 search_paths = DEFAULT_DRIVER_DIR;
498
499 dri2_dpy->driver = NULL;
500 end = search_paths + strlen(search_paths);
501 for (char *p = search_paths; p < end; p = next + 1) {
502 int len;
503 next = strchr(p, ':');
504 if (next == NULL)
505 next = end;
506
507 len = next - p;
508 #if GLX_USE_TLS
509 snprintf(path, sizeof path,
510 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
511 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
512 #endif
513 if (dri2_dpy->driver == NULL) {
514 snprintf(path, sizeof path,
515 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
516 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
517 if (dri2_dpy->driver == NULL)
518 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
519 }
520 /* not need continue to loop all paths once the driver is found */
521 if (dri2_dpy->driver != NULL)
522 break;
523 }
524
525 if (dri2_dpy->driver == NULL) {
526 _eglLog(_EGL_WARNING,
527 "DRI2: failed to open %s (search paths %s)",
528 dri2_dpy->driver_name, search_paths);
529 return NULL;
530 }
531
532 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
533
534 get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
535 if (get_extensions_name) {
536 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
537 if (get_extensions) {
538 extensions = get_extensions();
539 } else {
540 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
541 get_extensions_name, dlerror());
542 }
543 free(get_extensions_name);
544 }
545
546 if (!extensions)
547 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
548 if (extensions == NULL) {
549 _eglLog(_EGL_WARNING,
550 "DRI2: driver exports no extensions (%s)", dlerror());
551 dlclose(dri2_dpy->driver);
552 }
553
554 return extensions;
555 }
556
557 EGLBoolean
558 dri2_load_driver_dri3(_EGLDisplay *disp)
559 {
560 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
561 const __DRIextension **extensions;
562
563 extensions = dri2_open_driver(disp);
564 if (!extensions)
565 return EGL_FALSE;
566
567 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
568 dlclose(dri2_dpy->driver);
569 return EGL_FALSE;
570 }
571 dri2_dpy->driver_extensions = extensions;
572
573 return EGL_TRUE;
574 }
575
576 EGLBoolean
577 dri2_load_driver(_EGLDisplay *disp)
578 {
579 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
580 const __DRIextension **extensions;
581
582 extensions = dri2_open_driver(disp);
583 if (!extensions)
584 return EGL_FALSE;
585
586 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
587 dlclose(dri2_dpy->driver);
588 return EGL_FALSE;
589 }
590 dri2_dpy->driver_extensions = extensions;
591
592 return EGL_TRUE;
593 }
594
595 EGLBoolean
596 dri2_load_driver_swrast(_EGLDisplay *disp)
597 {
598 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
599 const __DRIextension **extensions;
600
601 extensions = dri2_open_driver(disp);
602 if (!extensions)
603 return EGL_FALSE;
604
605 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
606 dlclose(dri2_dpy->driver);
607 return EGL_FALSE;
608 }
609 dri2_dpy->driver_extensions = extensions;
610
611 return EGL_TRUE;
612 }
613
614 static unsigned
615 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
616 {
617 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
618 unsigned int value = 0;
619
620 if (!rendererQuery ||
621 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
622 return 0;
623
624 return value;
625 }
626
627 void
628 dri2_setup_screen(_EGLDisplay *disp)
629 {
630 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
631 unsigned int api_mask;
632
633 if (dri2_dpy->image_driver) {
634 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
635 } else if (dri2_dpy->dri2) {
636 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
637 } else {
638 assert(dri2_dpy->swrast);
639 api_mask = 1 << __DRI_API_OPENGL |
640 1 << __DRI_API_GLES |
641 1 << __DRI_API_GLES2 |
642 1 << __DRI_API_GLES3;
643 }
644
645 disp->ClientAPIs = 0;
646 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
647 disp->ClientAPIs |= EGL_OPENGL_BIT;
648 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
649 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
650 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
651 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
652 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
653 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
654
655 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
656 disp->Extensions.KHR_no_config_context = EGL_TRUE;
657 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
658
659 if (dri2_renderer_query_integer(dri2_dpy,
660 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
661 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
662
663 if (dri2_dpy->image_driver ||
664 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
665 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
666 disp->Extensions.KHR_create_context = EGL_TRUE;
667
668 if (dri2_dpy->robustness)
669 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
670 }
671
672 if (dri2_dpy->no_error)
673 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
674
675 if (dri2_dpy->fence) {
676 disp->Extensions.KHR_fence_sync = EGL_TRUE;
677 disp->Extensions.KHR_wait_sync = EGL_TRUE;
678 if (dri2_dpy->fence->get_fence_from_cl_event)
679 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
680 if (dri2_dpy->fence->base.version >= 2) {
681 unsigned capabilities =
682 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
683 disp->Extensions.ANDROID_native_fence_sync =
684 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
685 }
686 }
687
688 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
689
690 if (dri2_dpy->image) {
691 if (dri2_dpy->image->base.version >= 10 &&
692 dri2_dpy->image->getCapabilities != NULL) {
693 int capabilities;
694
695 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
696 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
697
698 if (dri2_dpy->image->base.version >= 11)
699 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
700 } else {
701 disp->Extensions.MESA_drm_image = EGL_TRUE;
702 if (dri2_dpy->image->base.version >= 11)
703 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
704 }
705
706 disp->Extensions.KHR_image_base = EGL_TRUE;
707 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
708 if (dri2_dpy->image->base.version >= 5 &&
709 dri2_dpy->image->createImageFromTexture) {
710 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
711 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
712
713 if (dri2_renderer_query_integer(dri2_dpy,
714 __DRI2_RENDERER_HAS_TEXTURE_3D))
715 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
716 }
717 #ifdef HAVE_LIBDRM
718 if (dri2_dpy->image->base.version >= 8 &&
719 dri2_dpy->image->createImageFromDmaBufs) {
720 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
721 }
722 if (dri2_dpy->image->base.version >= 15 &&
723 dri2_dpy->image->createImageFromDmaBufs2 &&
724 dri2_dpy->image->queryDmaBufFormats &&
725 dri2_dpy->image->queryDmaBufModifiers) {
726 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
727 }
728 #endif
729 }
730 }
731
732 void
733 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
734 {
735 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
736 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
737
738 /* Allow driconf to override applications.*/
739 if (dri2_dpy->config)
740 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
741 "vblank_mode", &vblank_mode);
742 switch (vblank_mode) {
743 case DRI_CONF_VBLANK_NEVER:
744 dri2_dpy->min_swap_interval = 0;
745 dri2_dpy->max_swap_interval = 0;
746 dri2_dpy->default_swap_interval = 0;
747 break;
748 case DRI_CONF_VBLANK_ALWAYS_SYNC:
749 dri2_dpy->min_swap_interval = 1;
750 dri2_dpy->max_swap_interval = max_swap_interval;
751 dri2_dpy->default_swap_interval = 1;
752 break;
753 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
754 dri2_dpy->min_swap_interval = 0;
755 dri2_dpy->max_swap_interval = max_swap_interval;
756 dri2_dpy->default_swap_interval = 0;
757 break;
758 default:
759 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
760 dri2_dpy->min_swap_interval = 0;
761 dri2_dpy->max_swap_interval = max_swap_interval;
762 dri2_dpy->default_swap_interval = 1;
763 break;
764 }
765 }
766
767 /* All platforms but DRM call this function to create the screen and populate
768 * the driver_configs. DRM inherits that information from its display - GBM.
769 */
770 EGLBoolean
771 dri2_create_screen(_EGLDisplay *disp)
772 {
773 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
774
775 if (dri2_dpy->image_driver) {
776 dri2_dpy->dri_screen =
777 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
778 dri2_dpy->loader_extensions,
779 dri2_dpy->driver_extensions,
780 &dri2_dpy->driver_configs,
781 disp);
782 } else if (dri2_dpy->dri2) {
783 if (dri2_dpy->dri2->base.version >= 4) {
784 dri2_dpy->dri_screen =
785 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
786 dri2_dpy->loader_extensions,
787 dri2_dpy->driver_extensions,
788 &dri2_dpy->driver_configs, disp);
789 } else {
790 dri2_dpy->dri_screen =
791 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
792 dri2_dpy->loader_extensions,
793 &dri2_dpy->driver_configs, disp);
794 }
795 } else {
796 assert(dri2_dpy->swrast);
797 if (dri2_dpy->swrast->base.version >= 4) {
798 dri2_dpy->dri_screen =
799 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
800 dri2_dpy->driver_extensions,
801 &dri2_dpy->driver_configs, disp);
802 } else {
803 dri2_dpy->dri_screen =
804 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
805 &dri2_dpy->driver_configs, disp);
806 }
807 }
808
809 if (dri2_dpy->dri_screen == NULL) {
810 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
811 return EGL_FALSE;
812 }
813
814 dri2_dpy->own_dri_screen = true;
815 return EGL_TRUE;
816 }
817
818 EGLBoolean
819 dri2_setup_extensions(_EGLDisplay *disp)
820 {
821 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
822 const struct dri2_extension_match *mandatory_core_extensions;
823 const __DRIextension **extensions;
824
825 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
826
827 if (dri2_dpy->image_driver || dri2_dpy->dri2)
828 mandatory_core_extensions = dri2_core_extensions;
829 else
830 mandatory_core_extensions = swrast_core_extensions;
831
832 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
833 return EGL_FALSE;
834
835 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
836 return EGL_TRUE;
837 }
838
839 /**
840 * Called via eglInitialize(), GLX_drv->API.Initialize().
841 *
842 * This must be guaranteed to be called exactly once, even if eglInitialize is
843 * called many times (without a eglTerminate in between).
844 */
845 static EGLBoolean
846 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
847 {
848 EGLBoolean ret = EGL_FALSE;
849 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
850
851 /* In the case where the application calls eglMakeCurrent(context1),
852 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
853 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
854 * initialized, as we need it to be able to free context1 correctly.
855 *
856 * It would probably be safest to forcibly release the display with
857 * dri2_display_release, to make sure the display is reinitialized correctly.
858 * However, the EGL spec states that we need to keep a reference to the
859 * current context (so we cannot call dri2_make_current(NULL)), and therefore
860 * we would leak context1 as we would be missing the old display connection
861 * to free it up correctly.
862 */
863 if (dri2_dpy) {
864 dri2_dpy->ref_count++;
865 return EGL_TRUE;
866 }
867
868 /* not until swrast_dri is supported */
869 if (disp->Options.UseFallback)
870 return EGL_FALSE;
871
872 /* Nothing to initialize for a test only display */
873 if (disp->Options.TestOnly)
874 return EGL_TRUE;
875
876 switch (disp->Platform) {
877 #ifdef HAVE_SURFACELESS_PLATFORM
878 case _EGL_PLATFORM_SURFACELESS:
879 ret = dri2_initialize_surfaceless(drv, disp);
880 break;
881 #endif
882 #ifdef HAVE_X11_PLATFORM
883 case _EGL_PLATFORM_X11:
884 ret = dri2_initialize_x11(drv, disp);
885 break;
886 #endif
887 #ifdef HAVE_DRM_PLATFORM
888 case _EGL_PLATFORM_DRM:
889 ret = dri2_initialize_drm(drv, disp);
890 break;
891 #endif
892 #ifdef HAVE_WAYLAND_PLATFORM
893 case _EGL_PLATFORM_WAYLAND:
894 ret = dri2_initialize_wayland(drv, disp);
895 break;
896 #endif
897 #ifdef HAVE_ANDROID_PLATFORM
898 case _EGL_PLATFORM_ANDROID:
899 ret = dri2_initialize_android(drv, disp);
900 break;
901 #endif
902 default:
903 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
904 return EGL_FALSE;
905 }
906
907 if (ret) {
908 dri2_dpy = dri2_egl_display(disp);
909
910 if (!dri2_dpy) {
911 return EGL_FALSE;
912 }
913
914 dri2_dpy->ref_count++;
915 }
916
917 return ret;
918 }
919
920 /**
921 * Decrement display reference count, and free up display if necessary.
922 */
923 static void
924 dri2_display_release(_EGLDisplay *disp)
925 {
926 struct dri2_egl_display *dri2_dpy;
927
928 if (!disp)
929 return;
930
931 dri2_dpy = dri2_egl_display(disp);
932
933 assert(dri2_dpy->ref_count > 0);
934 dri2_dpy->ref_count--;
935
936 if (dri2_dpy->ref_count > 0)
937 return;
938
939 _eglCleanupDisplay(disp);
940 dri2_display_destroy(disp);
941 }
942
943 void
944 dri2_display_destroy(_EGLDisplay *disp)
945 {
946 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
947
948 if (dri2_dpy->own_dri_screen)
949 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
950 if (dri2_dpy->fd >= 0)
951 close(dri2_dpy->fd);
952 if (dri2_dpy->driver)
953 dlclose(dri2_dpy->driver);
954 free(dri2_dpy->driver_name);
955
956 #ifdef HAVE_WAYLAND_PLATFORM
957 free(dri2_dpy->device_name);
958 #endif
959
960 switch (disp->Platform) {
961 #ifdef HAVE_X11_PLATFORM
962 case _EGL_PLATFORM_X11:
963 if (dri2_dpy->own_device) {
964 xcb_disconnect(dri2_dpy->conn);
965 }
966 break;
967 #endif
968 #ifdef HAVE_DRM_PLATFORM
969 case _EGL_PLATFORM_DRM:
970 if (dri2_dpy->own_device) {
971 gbm_device_destroy(&dri2_dpy->gbm_dri->base);
972 }
973 break;
974 #endif
975 #ifdef HAVE_WAYLAND_PLATFORM
976 case _EGL_PLATFORM_WAYLAND:
977 if (dri2_dpy->wl_drm)
978 wl_drm_destroy(dri2_dpy->wl_drm);
979 if (dri2_dpy->wl_dmabuf)
980 zwp_linux_dmabuf_v1_destroy(dri2_dpy->wl_dmabuf);
981 if (dri2_dpy->wl_shm)
982 wl_shm_destroy(dri2_dpy->wl_shm);
983 wl_registry_destroy(dri2_dpy->wl_registry);
984 wl_event_queue_destroy(dri2_dpy->wl_queue);
985 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
986 u_vector_finish(&dri2_dpy->wl_modifiers.argb8888);
987 u_vector_finish(&dri2_dpy->wl_modifiers.xrgb8888);
988 u_vector_finish(&dri2_dpy->wl_modifiers.rgb565);
989 if (dri2_dpy->own_device) {
990 wl_display_disconnect(dri2_dpy->wl_dpy);
991 }
992 break;
993 #endif
994 default:
995 break;
996 }
997
998 /* The drm platform does not create the screen/driver_configs but reuses
999 * the ones from the gbm device. As such the gbm itself is responsible
1000 * for the cleanup.
1001 */
1002 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1003 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1004 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1005 free(dri2_dpy->driver_configs);
1006 }
1007 free(dri2_dpy);
1008 disp->DriverData = NULL;
1009 }
1010
1011 /**
1012 * Called via eglTerminate(), drv->API.Terminate().
1013 *
1014 * This must be guaranteed to be called exactly once, even if eglTerminate is
1015 * called many times (without a eglInitialize in between).
1016 */
1017 static EGLBoolean
1018 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1019 {
1020 /* Release all non-current Context/Surfaces. */
1021 _eglReleaseDisplayResources(drv, disp);
1022
1023 dri2_display_release(disp);
1024
1025 return EGL_TRUE;
1026 }
1027
1028 /**
1029 * Set the error code after a call to
1030 * dri2_egl_display::dri2::createContextAttribs.
1031 */
1032 static void
1033 dri2_create_context_attribs_error(int dri_error)
1034 {
1035 EGLint egl_error;
1036
1037 switch (dri_error) {
1038 case __DRI_CTX_ERROR_SUCCESS:
1039 return;
1040
1041 case __DRI_CTX_ERROR_NO_MEMORY:
1042 egl_error = EGL_BAD_ALLOC;
1043 break;
1044
1045 /* From the EGL_KHR_create_context spec, section "Errors":
1046 *
1047 * * If <config> does not support a client API context compatible
1048 * with the requested API major and minor version, [...] context flags,
1049 * and context reset notification behavior (for client API types where
1050 * these attributes are supported), then an EGL_BAD_MATCH error is
1051 * generated.
1052 *
1053 * * If an OpenGL ES context is requested and the values for
1054 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1055 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1056 * is not defined, than an EGL_BAD_MATCH error is generated.
1057 *
1058 * * If an OpenGL context is requested, the requested version is
1059 * greater than 3.2, and the value for attribute
1060 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1061 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1062 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1063 * one of these bits set; or if the implementation does not support
1064 * the requested profile, then an EGL_BAD_MATCH error is generated.
1065 */
1066 case __DRI_CTX_ERROR_BAD_API:
1067 case __DRI_CTX_ERROR_BAD_VERSION:
1068 case __DRI_CTX_ERROR_BAD_FLAG:
1069 egl_error = EGL_BAD_MATCH;
1070 break;
1071
1072 /* From the EGL_KHR_create_context spec, section "Errors":
1073 *
1074 * * If an attribute name or attribute value in <attrib_list> is not
1075 * recognized (including unrecognized bits in bitmask attributes),
1076 * then an EGL_BAD_ATTRIBUTE error is generated."
1077 */
1078 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1079 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1080 egl_error = EGL_BAD_ATTRIBUTE;
1081 break;
1082
1083 default:
1084 assert(0);
1085 egl_error = EGL_BAD_MATCH;
1086 break;
1087 }
1088
1089 _eglError(egl_error, "dri2_create_context");
1090 }
1091
1092 static bool
1093 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1094 struct dri2_egl_display *dri2_dpy,
1095 uint32_t *ctx_attribs,
1096 unsigned *num_attribs)
1097 {
1098 int pos = 0;
1099
1100 assert(*num_attribs >= 8);
1101
1102 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1103 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1104 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1105 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1106
1107 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1108 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1109 * extension, don't even try to send it the robust-access flag.
1110 * It may explode. Instead, generate the required EGL error here.
1111 */
1112 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1113 && !dri2_dpy->robustness) {
1114 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1115 return false;
1116 }
1117
1118 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1119 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1120 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1121 }
1122
1123 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1124 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1125 * extension, don't even try to send it a reset strategy. It may
1126 * explode. Instead, generate the required EGL error here.
1127 */
1128 if (!dri2_dpy->robustness) {
1129 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1130 return false;
1131 }
1132
1133 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1134 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1135 }
1136
1137 *num_attribs = pos;
1138
1139 return true;
1140 }
1141
1142 /**
1143 * Called via eglCreateContext(), drv->API.CreateContext().
1144 */
1145 static _EGLContext *
1146 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1147 _EGLContext *share_list, const EGLint *attrib_list)
1148 {
1149 struct dri2_egl_context *dri2_ctx;
1150 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1151 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1152 __DRIcontext *shared =
1153 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1154 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1155 const __DRIconfig *dri_config;
1156 int api;
1157
1158 (void) drv;
1159
1160 dri2_ctx = malloc(sizeof *dri2_ctx);
1161 if (!dri2_ctx) {
1162 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1163 return NULL;
1164 }
1165
1166 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1167 goto cleanup;
1168
1169 /* The EGL_EXT_create_context_robustness spec says:
1170 *
1171 * "Add to the eglCreateContext context creation errors: [...]
1172 *
1173 * * If the reset notification behavior of <share_context> and the
1174 * newly created context are different then an EGL_BAD_MATCH error is
1175 * generated."
1176 */
1177 if (share_list && share_list->ResetNotificationStrategy !=
1178 dri2_ctx->base.ResetNotificationStrategy) {
1179 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1180 goto cleanup;
1181 }
1182
1183 /* The EGL_KHR_create_context_no_error spec says:
1184 *
1185 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1186 * used to create <share_context> does not match the value of
1187 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1188 */
1189 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1190 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1191 goto cleanup;
1192 }
1193
1194 switch (dri2_ctx->base.ClientAPI) {
1195 case EGL_OPENGL_ES_API:
1196 switch (dri2_ctx->base.ClientMajorVersion) {
1197 case 1:
1198 api = __DRI_API_GLES;
1199 break;
1200 case 2:
1201 api = __DRI_API_GLES2;
1202 break;
1203 case 3:
1204 api = __DRI_API_GLES3;
1205 break;
1206 default:
1207 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1208 free(dri2_ctx);
1209 return NULL;
1210 }
1211 break;
1212 case EGL_OPENGL_API:
1213 if ((dri2_ctx->base.ClientMajorVersion >= 4
1214 || (dri2_ctx->base.ClientMajorVersion == 3
1215 && dri2_ctx->base.ClientMinorVersion >= 2))
1216 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1217 api = __DRI_API_OPENGL_CORE;
1218 else
1219 api = __DRI_API_OPENGL;
1220 break;
1221 default:
1222 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1223 free(dri2_ctx);
1224 return NULL;
1225 }
1226
1227 if (conf != NULL) {
1228 /* The config chosen here isn't necessarily
1229 * used for surfaces later.
1230 * A pixmap surface will use the single config.
1231 * This opportunity depends on disabling the
1232 * doubleBufferMode check in
1233 * src/mesa/main/context.c:check_compatible()
1234 */
1235 if (dri2_config->dri_config[1][0])
1236 dri_config = dri2_config->dri_config[1][0];
1237 else
1238 dri_config = dri2_config->dri_config[0][0];
1239
1240 /* EGL_WINDOW_BIT is set only when there is a double-buffered dri_config.
1241 * This makes sure the back buffer will always be used.
1242 */
1243 if (conf->SurfaceType & EGL_WINDOW_BIT)
1244 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1245 }
1246 else
1247 dri_config = NULL;
1248
1249 if (dri2_dpy->image_driver) {
1250 unsigned error;
1251 unsigned num_attribs = 8;
1252 uint32_t ctx_attribs[8];
1253
1254 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1255 &num_attribs))
1256 goto cleanup;
1257
1258 dri2_ctx->dri_context =
1259 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1260 api,
1261 dri_config,
1262 shared,
1263 num_attribs / 2,
1264 ctx_attribs,
1265 & error,
1266 dri2_ctx);
1267 dri2_create_context_attribs_error(error);
1268 } else if (dri2_dpy->dri2) {
1269 if (dri2_dpy->dri2->base.version >= 3) {
1270 unsigned error;
1271 unsigned num_attribs = 8;
1272 uint32_t ctx_attribs[8];
1273
1274 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1275 &num_attribs))
1276 goto cleanup;
1277
1278 dri2_ctx->dri_context =
1279 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1280 api,
1281 dri_config,
1282 shared,
1283 num_attribs / 2,
1284 ctx_attribs,
1285 & error,
1286 dri2_ctx);
1287 dri2_create_context_attribs_error(error);
1288 } else {
1289 dri2_ctx->dri_context =
1290 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1291 api,
1292 dri_config,
1293 shared,
1294 dri2_ctx);
1295 }
1296 } else {
1297 assert(dri2_dpy->swrast);
1298 if (dri2_dpy->swrast->base.version >= 3) {
1299 unsigned error;
1300 unsigned num_attribs = 8;
1301 uint32_t ctx_attribs[8];
1302
1303 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1304 &num_attribs))
1305 goto cleanup;
1306
1307 dri2_ctx->dri_context =
1308 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1309 api,
1310 dri_config,
1311 shared,
1312 num_attribs / 2,
1313 ctx_attribs,
1314 & error,
1315 dri2_ctx);
1316 dri2_create_context_attribs_error(error);
1317 } else {
1318 dri2_ctx->dri_context =
1319 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1320 api,
1321 dri_config,
1322 shared,
1323 dri2_ctx);
1324 }
1325 }
1326
1327 if (!dri2_ctx->dri_context)
1328 goto cleanup;
1329
1330 return &dri2_ctx->base;
1331
1332 cleanup:
1333 free(dri2_ctx);
1334 return NULL;
1335 }
1336
1337 /**
1338 * Called via eglDestroyContext(), drv->API.DestroyContext().
1339 */
1340 static EGLBoolean
1341 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1342 {
1343 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1344 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1345
1346 if (_eglPutContext(ctx)) {
1347 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1348 free(dri2_ctx);
1349 }
1350
1351 return EGL_TRUE;
1352 }
1353
1354 static EGLBoolean
1355 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1356 {
1357 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1358
1359 if (!_eglPutSurface(surf))
1360 return EGL_TRUE;
1361
1362 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1363 }
1364
1365 /**
1366 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1367 */
1368 static EGLBoolean
1369 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1370 _EGLSurface *rsurf, _EGLContext *ctx)
1371 {
1372 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1373 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1374 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1375 _EGLContext *old_ctx;
1376 _EGLSurface *old_dsurf, *old_rsurf;
1377 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1378 __DRIdrawable *ddraw, *rdraw;
1379 __DRIcontext *cctx;
1380 EGLBoolean unbind;
1381
1382 if (!dri2_dpy)
1383 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1384
1385 /* make new bindings */
1386 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1387 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1388 return EGL_FALSE;
1389 }
1390
1391 /* flush before context switch */
1392 if (old_ctx)
1393 dri2_drv->glFlush();
1394
1395 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1396 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1397 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1398
1399 if (old_ctx) {
1400 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1401 dri2_dpy->core->unbindContext(old_cctx);
1402 }
1403
1404 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1405
1406 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1407 dri2_destroy_surface(drv, disp, old_dsurf);
1408 dri2_destroy_surface(drv, disp, old_rsurf);
1409
1410 if (!unbind)
1411 dri2_dpy->ref_count++;
1412 if (old_ctx) {
1413 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1414 dri2_destroy_context(drv, disp, old_ctx);
1415 dri2_display_release(old_disp);
1416 }
1417
1418 return EGL_TRUE;
1419 } else {
1420 /* undo the previous _eglBindContext */
1421 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1422 assert(&dri2_ctx->base == ctx &&
1423 tmp_dsurf == dsurf &&
1424 tmp_rsurf == rsurf);
1425
1426 _eglPutSurface(dsurf);
1427 _eglPutSurface(rsurf);
1428 _eglPutContext(ctx);
1429
1430 _eglPutSurface(old_dsurf);
1431 _eglPutSurface(old_rsurf);
1432 _eglPutContext(old_ctx);
1433
1434 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1435 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1436 * as EGL_SUCCESS.
1437 */
1438 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1439 }
1440 }
1441
1442 __DRIdrawable *
1443 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1444 {
1445 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1446
1447 return dri2_surf->dri_drawable;
1448 }
1449
1450 /*
1451 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1452 */
1453 static _EGLProc
1454 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1455 {
1456 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1457
1458 return dri2_drv->get_proc_address(procname);
1459 }
1460
1461 static _EGLSurface*
1462 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1463 _EGLConfig *conf, void *native_window,
1464 const EGLint *attrib_list)
1465 {
1466 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1467 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1468 attrib_list);
1469 }
1470
1471 static _EGLSurface*
1472 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1473 _EGLConfig *conf, void *native_pixmap,
1474 const EGLint *attrib_list)
1475 {
1476 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1477 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1478 attrib_list);
1479 }
1480
1481 static _EGLSurface*
1482 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1483 _EGLConfig *conf, const EGLint *attrib_list)
1484 {
1485 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1486 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1487 }
1488
1489 static EGLBoolean
1490 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1491 EGLint interval)
1492 {
1493 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1494 if (!dri2_dpy->vtbl->swap_interval)
1495 return EGL_TRUE;
1496 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1497 }
1498
1499 /**
1500 * Asks the client API to flush any rendering to the drawable so that we can
1501 * do our swapbuffers.
1502 */
1503 void
1504 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1505 {
1506 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1507 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1508
1509 if (dri2_dpy->flush) {
1510 if (dri2_dpy->flush->base.version >= 4) {
1511 /* We know there's a current context because:
1512 *
1513 * "If surface is not bound to the calling thread’s current
1514 * context, an EGL_BAD_SURFACE error is generated."
1515 */
1516 _EGLContext *ctx = _eglGetCurrentContext();
1517 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1518
1519 /* From the EGL 1.4 spec (page 52):
1520 *
1521 * "The contents of ancillary buffers are always undefined
1522 * after calling eglSwapBuffers."
1523 */
1524 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1525 dri_drawable,
1526 __DRI2_FLUSH_DRAWABLE |
1527 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1528 __DRI2_THROTTLE_SWAPBUFFER);
1529 } else {
1530 dri2_dpy->flush->flush(dri_drawable);
1531 }
1532 }
1533 }
1534
1535 static EGLBoolean
1536 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1537 {
1538 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1539 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1540 }
1541
1542 static EGLBoolean
1543 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1544 _EGLSurface *surf,
1545 const EGLint *rects, EGLint n_rects)
1546 {
1547 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1548 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1549 rects, n_rects);
1550 }
1551
1552 static EGLBoolean
1553 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1554 EGLint numRects, const EGLint *rects)
1555 {
1556 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1557 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1558 }
1559
1560 static EGLBoolean
1561 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1562 EGLint *rects, EGLint n_rects)
1563 {
1564 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1565 return dri2_dpy->vtbl->set_damage_region(drv, dpy, surf, rects, n_rects);
1566 }
1567
1568 static EGLBoolean
1569 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1570 EGLint x, EGLint y, EGLint width, EGLint height)
1571 {
1572 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1573 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1574 }
1575
1576 static EGLBoolean
1577 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1578 void *native_pixmap_target)
1579 {
1580 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1581 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1582 }
1583
1584 static EGLint
1585 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1586 {
1587 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1588 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1589 }
1590
1591 static EGLBoolean
1592 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1593 {
1594 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1595 _EGLSurface *surf = ctx->DrawSurface;
1596 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1597
1598 (void) drv;
1599
1600 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1601 * we need to copy fake to real here.*/
1602
1603 if (dri2_dpy->flush != NULL)
1604 dri2_dpy->flush->flush(dri_drawable);
1605
1606 return EGL_TRUE;
1607 }
1608
1609 static EGLBoolean
1610 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1611 {
1612 (void) drv;
1613 (void) disp;
1614
1615 if (engine != EGL_CORE_NATIVE_ENGINE)
1616 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1617 /* glXWaitX(); */
1618
1619 return EGL_TRUE;
1620 }
1621
1622 static EGLBoolean
1623 dri2_bind_tex_image(_EGLDriver *drv,
1624 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1625 {
1626 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1627 struct dri2_egl_context *dri2_ctx;
1628 _EGLContext *ctx;
1629 GLint format, target;
1630 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1631
1632 ctx = _eglGetCurrentContext();
1633 dri2_ctx = dri2_egl_context(ctx);
1634
1635 if (!_eglBindTexImage(drv, disp, surf, buffer))
1636 return EGL_FALSE;
1637
1638 switch (surf->TextureFormat) {
1639 case EGL_TEXTURE_RGB:
1640 format = __DRI_TEXTURE_FORMAT_RGB;
1641 break;
1642 case EGL_TEXTURE_RGBA:
1643 format = __DRI_TEXTURE_FORMAT_RGBA;
1644 break;
1645 default:
1646 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1647 format = __DRI_TEXTURE_FORMAT_RGBA;
1648 }
1649
1650 switch (surf->TextureTarget) {
1651 case EGL_TEXTURE_2D:
1652 target = GL_TEXTURE_2D;
1653 break;
1654 default:
1655 target = GL_TEXTURE_2D;
1656 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1657 }
1658
1659 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1660 target, format,
1661 dri_drawable);
1662
1663 return EGL_TRUE;
1664 }
1665
1666 static EGLBoolean
1667 dri2_release_tex_image(_EGLDriver *drv,
1668 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1669 {
1670 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1671 struct dri2_egl_context *dri2_ctx;
1672 _EGLContext *ctx;
1673 GLint target;
1674 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1675
1676 ctx = _eglGetCurrentContext();
1677 dri2_ctx = dri2_egl_context(ctx);
1678
1679 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1680 return EGL_FALSE;
1681
1682 switch (surf->TextureTarget) {
1683 case EGL_TEXTURE_2D:
1684 target = GL_TEXTURE_2D;
1685 break;
1686 default:
1687 assert(0);
1688 }
1689
1690 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1691 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1692 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1693 target, dri_drawable);
1694 }
1695
1696 return EGL_TRUE;
1697 }
1698
1699 static _EGLImage*
1700 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1701 EGLenum target, EGLClientBuffer buffer,
1702 const EGLint *attr_list)
1703 {
1704 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1705 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1706 attr_list);
1707 }
1708
1709 static _EGLImage *
1710 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1711 {
1712 struct dri2_egl_image *dri2_img;
1713
1714 if (dri_image == NULL) {
1715 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1716 return NULL;
1717 }
1718
1719 dri2_img = malloc(sizeof *dri2_img);
1720 if (!dri2_img) {
1721 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1722 return NULL;
1723 }
1724
1725 _eglInitImage(&dri2_img->base, disp);
1726
1727 dri2_img->dri_image = dri_image;
1728
1729 return &dri2_img->base;
1730 }
1731
1732 static _EGLImage *
1733 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
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 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1740 __DRIimage *dri_image;
1741
1742 if (renderbuffer == 0) {
1743 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1744 return EGL_NO_IMAGE_KHR;
1745 }
1746
1747 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
1748 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1749 return EGL_NO_IMAGE_KHR;
1750 }
1751
1752 dri_image =
1753 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1754 renderbuffer, NULL);
1755
1756 return dri2_create_image_from_dri(disp, dri_image);
1757 }
1758
1759 #ifdef HAVE_WAYLAND_PLATFORM
1760
1761 /* This structure describes how a wl_buffer maps to one or more
1762 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1763 * offsets and strides of the planes in the buffer. This table maps a
1764 * wl_drm format code to a description of the planes in the buffer
1765 * that lets us create a __DRIimage for each of the planes. */
1766
1767 static const struct wl_drm_components_descriptor {
1768 uint32_t dri_components;
1769 EGLint components;
1770 int nplanes;
1771 } wl_drm_components[] = {
1772 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1773 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1774 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1775 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1776 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1777 };
1778
1779 static _EGLImage *
1780 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1781 EGLClientBuffer _buffer,
1782 const EGLint *attr_list)
1783 {
1784 struct wl_drm_buffer *buffer;
1785 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1786 const struct wl_drm_components_descriptor *f;
1787 __DRIimage *dri_image;
1788 _EGLImageAttribs attrs;
1789 int32_t plane;
1790
1791 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1792 (struct wl_resource *) _buffer);
1793 if (!buffer)
1794 return NULL;
1795
1796 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1797 return NULL;
1798
1799 plane = attrs.PlaneWL;
1800 f = buffer->driver_format;
1801 if (plane < 0 || plane >= f->nplanes) {
1802 _eglError(EGL_BAD_PARAMETER,
1803 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1804 return NULL;
1805 }
1806
1807 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1808
1809 if (dri_image == NULL) {
1810 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1811 return NULL;
1812 }
1813
1814 return dri2_create_image_from_dri(disp, dri_image);
1815 }
1816 #endif
1817
1818 static EGLBoolean
1819 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1820 EGLuint64KHR *ust, EGLuint64KHR *msc,
1821 EGLuint64KHR *sbc)
1822 {
1823 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1824 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1825 }
1826
1827 /**
1828 * Set the error code after a call to
1829 * dri2_egl_image::dri_image::createImageFromTexture.
1830 */
1831 static void
1832 dri2_create_image_khr_texture_error(int dri_error)
1833 {
1834 EGLint egl_error;
1835
1836 switch (dri_error) {
1837 case __DRI_IMAGE_ERROR_SUCCESS:
1838 return;
1839
1840 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1841 egl_error = EGL_BAD_ALLOC;
1842 break;
1843
1844 case __DRI_IMAGE_ERROR_BAD_MATCH:
1845 egl_error = EGL_BAD_MATCH;
1846 break;
1847
1848 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1849 egl_error = EGL_BAD_PARAMETER;
1850 break;
1851
1852 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1853 egl_error = EGL_BAD_ACCESS;
1854 break;
1855
1856 default:
1857 assert(0);
1858 egl_error = EGL_BAD_MATCH;
1859 break;
1860 }
1861
1862 _eglError(egl_error, "dri2_create_image_khr_texture");
1863 }
1864
1865 static _EGLImage *
1866 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1867 EGLenum target,
1868 EGLClientBuffer buffer,
1869 const EGLint *attr_list)
1870 {
1871 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1872 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1873 struct dri2_egl_image *dri2_img;
1874 GLuint texture = (GLuint) (uintptr_t) buffer;
1875 _EGLImageAttribs attrs;
1876 GLuint depth;
1877 GLenum gl_target;
1878 unsigned error;
1879
1880 if (texture == 0) {
1881 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1882 return EGL_NO_IMAGE_KHR;
1883 }
1884
1885 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1886 return EGL_NO_IMAGE_KHR;
1887
1888 switch (target) {
1889 case EGL_GL_TEXTURE_2D_KHR:
1890 if (!disp->Extensions.KHR_gl_texture_2D_image) {
1891 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1892 return EGL_NO_IMAGE_KHR;
1893 }
1894 depth = 0;
1895 gl_target = GL_TEXTURE_2D;
1896 break;
1897 case EGL_GL_TEXTURE_3D_KHR:
1898 if (!disp->Extensions.KHR_gl_texture_3D_image) {
1899 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1900 return EGL_NO_IMAGE_KHR;
1901 }
1902
1903 depth = attrs.GLTextureZOffset;
1904 gl_target = GL_TEXTURE_3D;
1905 break;
1906 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1907 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1908 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1909 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1910 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1911 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1912 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
1913 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1914 return EGL_NO_IMAGE_KHR;
1915 }
1916
1917 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1918 gl_target = GL_TEXTURE_CUBE_MAP;
1919 break;
1920 default:
1921 unreachable("Unexpected target in dri2_create_image_khr_texture()");
1922 return EGL_NO_IMAGE_KHR;
1923 }
1924
1925 dri2_img = malloc(sizeof *dri2_img);
1926 if (!dri2_img) {
1927 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1928 return EGL_NO_IMAGE_KHR;
1929 }
1930
1931 _eglInitImage(&dri2_img->base, disp);
1932
1933 dri2_img->dri_image =
1934 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1935 gl_target,
1936 texture,
1937 depth,
1938 attrs.GLTextureLevel,
1939 &error,
1940 dri2_img);
1941 dri2_create_image_khr_texture_error(error);
1942
1943 if (!dri2_img->dri_image) {
1944 free(dri2_img);
1945 return EGL_NO_IMAGE_KHR;
1946 }
1947 return &dri2_img->base;
1948 }
1949
1950 static EGLBoolean
1951 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1952 EGLint attribute, EGLint *value)
1953 {
1954 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1955 if (!dri2_dpy->vtbl->query_surface)
1956 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1957 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1958 }
1959
1960 static struct wl_buffer*
1961 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1962 _EGLImage *img)
1963 {
1964 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1965 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1966 }
1967
1968 #ifdef HAVE_LIBDRM
1969 static _EGLImage *
1970 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1971 EGLClientBuffer buffer, const EGLint *attr_list)
1972 {
1973 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1974 EGLint format, name, pitch;
1975 _EGLImageAttribs attrs;
1976 __DRIimage *dri_image;
1977
1978 name = (EGLint) (uintptr_t) buffer;
1979
1980 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1981 return NULL;
1982
1983 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1984 attrs.DRMBufferStrideMESA <= 0) {
1985 _eglError(EGL_BAD_PARAMETER,
1986 "bad width, height or stride");
1987 return NULL;
1988 }
1989
1990 switch (attrs.DRMBufferFormatMESA) {
1991 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1992 format = __DRI_IMAGE_FORMAT_ARGB8888;
1993 pitch = attrs.DRMBufferStrideMESA;
1994 break;
1995 default:
1996 _eglError(EGL_BAD_PARAMETER,
1997 "dri2_create_image_khr: unsupported pixmap depth");
1998 return NULL;
1999 }
2000
2001 dri_image =
2002 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2003 attrs.Width,
2004 attrs.Height,
2005 format,
2006 name,
2007 pitch,
2008 NULL);
2009
2010 return dri2_create_image_from_dri(disp, dri_image);
2011 }
2012
2013 static EGLBoolean
2014 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2015 {
2016 /**
2017 * The spec says:
2018 *
2019 * "Required attributes and their values are as follows:
2020 *
2021 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2022 *
2023 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2024 * by drm_fourcc.h and used as the pixel_format parameter of the
2025 * drm_mode_fb_cmd2 ioctl."
2026 *
2027 * and
2028 *
2029 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2030 * incomplete, EGL_BAD_PARAMETER is generated."
2031 */
2032 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2033 !attrs->DMABufFourCC.IsPresent)
2034 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2035
2036 /**
2037 * Also:
2038 *
2039 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2040 * specified for a plane's pitch or offset isn't supported by EGL,
2041 * EGL_BAD_ACCESS is generated."
2042 */
2043 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2044 if (attrs->DMABufPlanePitches[i].IsPresent &&
2045 attrs->DMABufPlanePitches[i].Value <= 0)
2046 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2047 }
2048
2049 /**
2050 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2051 * attribute values may be given.
2052 *
2053 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2054 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2055 */
2056 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2057 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2058 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2059 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2060 }
2061
2062 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2063 * mandate it, we only accept the same modifier across all planes. */
2064 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2065 if (attrs->DMABufPlaneFds[i].IsPresent) {
2066 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2067 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2068 (attrs->DMABufPlaneModifiersLo[0].Value !=
2069 attrs->DMABufPlaneModifiersLo[i].Value) ||
2070 (attrs->DMABufPlaneModifiersHi[0].Value !=
2071 attrs->DMABufPlaneModifiersHi[i].Value))
2072 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2073 }
2074 }
2075
2076 return EGL_TRUE;
2077 }
2078
2079 /* Returns the total number of file descriptors. Zero indicates an error. */
2080 static unsigned
2081 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2082 {
2083 unsigned plane_n;
2084
2085 switch (attrs->DMABufFourCC.Value) {
2086 case DRM_FORMAT_R8:
2087 case DRM_FORMAT_RG88:
2088 case DRM_FORMAT_GR88:
2089 case DRM_FORMAT_R16:
2090 case DRM_FORMAT_GR1616:
2091 case DRM_FORMAT_RGB332:
2092 case DRM_FORMAT_BGR233:
2093 case DRM_FORMAT_XRGB4444:
2094 case DRM_FORMAT_XBGR4444:
2095 case DRM_FORMAT_RGBX4444:
2096 case DRM_FORMAT_BGRX4444:
2097 case DRM_FORMAT_ARGB4444:
2098 case DRM_FORMAT_ABGR4444:
2099 case DRM_FORMAT_RGBA4444:
2100 case DRM_FORMAT_BGRA4444:
2101 case DRM_FORMAT_XRGB1555:
2102 case DRM_FORMAT_XBGR1555:
2103 case DRM_FORMAT_RGBX5551:
2104 case DRM_FORMAT_BGRX5551:
2105 case DRM_FORMAT_ARGB1555:
2106 case DRM_FORMAT_ABGR1555:
2107 case DRM_FORMAT_RGBA5551:
2108 case DRM_FORMAT_BGRA5551:
2109 case DRM_FORMAT_RGB565:
2110 case DRM_FORMAT_BGR565:
2111 case DRM_FORMAT_RGB888:
2112 case DRM_FORMAT_BGR888:
2113 case DRM_FORMAT_XRGB8888:
2114 case DRM_FORMAT_XBGR8888:
2115 case DRM_FORMAT_RGBX8888:
2116 case DRM_FORMAT_BGRX8888:
2117 case DRM_FORMAT_ARGB8888:
2118 case DRM_FORMAT_ABGR8888:
2119 case DRM_FORMAT_RGBA8888:
2120 case DRM_FORMAT_BGRA8888:
2121 case DRM_FORMAT_XRGB2101010:
2122 case DRM_FORMAT_XBGR2101010:
2123 case DRM_FORMAT_RGBX1010102:
2124 case DRM_FORMAT_BGRX1010102:
2125 case DRM_FORMAT_ARGB2101010:
2126 case DRM_FORMAT_ABGR2101010:
2127 case DRM_FORMAT_RGBA1010102:
2128 case DRM_FORMAT_BGRA1010102:
2129 case DRM_FORMAT_YUYV:
2130 case DRM_FORMAT_YVYU:
2131 case DRM_FORMAT_UYVY:
2132 case DRM_FORMAT_VYUY:
2133 plane_n = 1;
2134 break;
2135 case DRM_FORMAT_NV12:
2136 case DRM_FORMAT_NV21:
2137 case DRM_FORMAT_NV16:
2138 case DRM_FORMAT_NV61:
2139 plane_n = 2;
2140 break;
2141 case DRM_FORMAT_YUV410:
2142 case DRM_FORMAT_YVU410:
2143 case DRM_FORMAT_YUV411:
2144 case DRM_FORMAT_YVU411:
2145 case DRM_FORMAT_YUV420:
2146 case DRM_FORMAT_YVU420:
2147 case DRM_FORMAT_YUV422:
2148 case DRM_FORMAT_YVU422:
2149 case DRM_FORMAT_YUV444:
2150 case DRM_FORMAT_YVU444:
2151 plane_n = 3;
2152 break;
2153 default:
2154 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2155 return 0;
2156 }
2157
2158 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2159 /**
2160 * The modifiers extension spec says:
2161 *
2162 * "Modifiers may modify any attribute of a buffer import, including
2163 * but not limited to adding extra planes to a format which
2164 * otherwise does not have those planes. As an example, a modifier
2165 * may add a plane for an external compression buffer to a
2166 * single-plane format. The exact meaning and effect of any
2167 * modifier is canonically defined by drm_fourcc.h, not as part of
2168 * this extension."
2169 */
2170 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2171 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2172 plane_n = i + 1;
2173 }
2174 }
2175
2176 /**
2177 * The spec says:
2178 *
2179 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2180 * incomplete, EGL_BAD_PARAMETER is generated."
2181 */
2182 for (unsigned i = 0; i < plane_n; ++i) {
2183 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2184 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2185 !attrs->DMABufPlanePitches[i].IsPresent) {
2186 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2187 return 0;
2188 }
2189 }
2190
2191 /**
2192 * The spec also says:
2193 *
2194 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2195 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2196 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2197 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2198 */
2199 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2200 if (attrs->DMABufPlaneFds[i].IsPresent ||
2201 attrs->DMABufPlaneOffsets[i].IsPresent ||
2202 attrs->DMABufPlanePitches[i].IsPresent) {
2203 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2204 return 0;
2205 }
2206 }
2207
2208 return plane_n;
2209 }
2210
2211 static EGLBoolean
2212 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2213 EGLint max, EGLint *formats, EGLint *count)
2214 {
2215 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2216 if (max < 0 || (max > 0 && formats == NULL))
2217 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2218
2219 if (dri2_dpy->image->base.version < 15 ||
2220 dri2_dpy->image->queryDmaBufFormats == NULL)
2221 return EGL_FALSE;
2222
2223 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2224 formats, count))
2225 return EGL_FALSE;
2226
2227 return EGL_TRUE;
2228 }
2229
2230 static EGLBoolean
2231 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2232 EGLint max, EGLuint64KHR *modifiers,
2233 EGLBoolean *external_only, EGLint *count)
2234 {
2235 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2236
2237 if (max < 0)
2238 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2239
2240 if (max > 0 && modifiers == NULL)
2241 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2242
2243 if (dri2_dpy->image->base.version < 15 ||
2244 dri2_dpy->image->queryDmaBufModifiers == NULL)
2245 return EGL_FALSE;
2246
2247 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2248 max, modifiers,
2249 (unsigned int *) external_only,
2250 count) == false)
2251 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2252
2253 return EGL_TRUE;
2254 }
2255
2256 /**
2257 * The spec says:
2258 *
2259 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2260 * EGL will take a reference to the dma_buf(s) which it will release at any
2261 * time while the EGLDisplay is initialized. It is the responsibility of the
2262 * application to close the dma_buf file descriptors."
2263 *
2264 * Therefore we must never close or otherwise modify the file descriptors.
2265 */
2266 _EGLImage *
2267 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2268 EGLClientBuffer buffer, const EGLint *attr_list)
2269 {
2270 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2271 _EGLImage *res;
2272 _EGLImageAttribs attrs;
2273 __DRIimage *dri_image;
2274 unsigned num_fds;
2275 int fds[DMA_BUF_MAX_PLANES];
2276 int pitches[DMA_BUF_MAX_PLANES];
2277 int offsets[DMA_BUF_MAX_PLANES];
2278 uint64_t modifier;
2279 bool has_modifier = false;
2280 unsigned error;
2281
2282 /**
2283 * The spec says:
2284 *
2285 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2286 * error EGL_BAD_PARAMETER is generated."
2287 */
2288 if (buffer != NULL) {
2289 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2290 return NULL;
2291 }
2292
2293 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2294 return NULL;
2295
2296 if (!dri2_check_dma_buf_attribs(&attrs))
2297 return NULL;
2298
2299 num_fds = dri2_check_dma_buf_format(&attrs);
2300 if (!num_fds)
2301 return NULL;
2302
2303 for (unsigned i = 0; i < num_fds; ++i) {
2304 fds[i] = attrs.DMABufPlaneFds[i].Value;
2305 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2306 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2307 }
2308
2309 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2310 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2311 * attrs.DMABufPlaneModifiersHi[0] */
2312 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2313 modifier = (uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32;
2314 modifier |= (uint64_t) (attrs.DMABufPlaneModifiersLo[0].Value & 0xffffffff);
2315 has_modifier = true;
2316 }
2317
2318 if (has_modifier) {
2319 if (dri2_dpy->image->base.version < 15 ||
2320 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2321 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2322 return EGL_NO_IMAGE_KHR;
2323 }
2324 dri_image =
2325 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2326 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2327 modifier, fds, num_fds, pitches, offsets,
2328 attrs.DMABufYuvColorSpaceHint.Value,
2329 attrs.DMABufSampleRangeHint.Value,
2330 attrs.DMABufChromaHorizontalSiting.Value,
2331 attrs.DMABufChromaVerticalSiting.Value,
2332 &error,
2333 NULL);
2334 }
2335 else {
2336 dri_image =
2337 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2338 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2339 fds, num_fds, pitches, offsets,
2340 attrs.DMABufYuvColorSpaceHint.Value,
2341 attrs.DMABufSampleRangeHint.Value,
2342 attrs.DMABufChromaHorizontalSiting.Value,
2343 attrs.DMABufChromaVerticalSiting.Value,
2344 &error,
2345 NULL);
2346 }
2347 dri2_create_image_khr_texture_error(error);
2348
2349 if (!dri_image)
2350 return EGL_NO_IMAGE_KHR;
2351
2352 res = dri2_create_image_from_dri(disp, dri_image);
2353
2354 return res;
2355 }
2356 static _EGLImage *
2357 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2358 const EGLint *attr_list)
2359 {
2360 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2361 struct dri2_egl_image *dri2_img;
2362 _EGLImageAttribs attrs;
2363 unsigned int dri_use, valid_mask;
2364 int format;
2365
2366 (void) drv;
2367
2368 if (!attr_list) {
2369 _eglError(EGL_BAD_PARAMETER, __func__);
2370 return EGL_NO_IMAGE_KHR;
2371 }
2372
2373 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2374 return EGL_NO_IMAGE_KHR;
2375
2376 if (attrs.Width <= 0 || attrs.Height <= 0) {
2377 _eglError(EGL_BAD_PARAMETER, __func__);
2378 return EGL_NO_IMAGE_KHR;
2379 }
2380
2381 switch (attrs.DRMBufferFormatMESA) {
2382 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2383 format = __DRI_IMAGE_FORMAT_ARGB8888;
2384 break;
2385 default:
2386 _eglError(EGL_BAD_PARAMETER, __func__);
2387 return EGL_NO_IMAGE_KHR;
2388 }
2389
2390 valid_mask =
2391 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2392 EGL_DRM_BUFFER_USE_SHARE_MESA |
2393 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2394 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2395 _eglError(EGL_BAD_PARAMETER, __func__);
2396 return EGL_NO_IMAGE_KHR;
2397 }
2398
2399 dri_use = 0;
2400 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2401 dri_use |= __DRI_IMAGE_USE_SHARE;
2402 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2403 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2404 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2405 dri_use |= __DRI_IMAGE_USE_CURSOR;
2406
2407 dri2_img = malloc(sizeof *dri2_img);
2408 if (!dri2_img) {
2409 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2410 return EGL_NO_IMAGE_KHR;
2411 }
2412
2413 _eglInitImage(&dri2_img->base, disp);
2414
2415 dri2_img->dri_image =
2416 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2417 attrs.Width, attrs.Height,
2418 format, dri_use, dri2_img);
2419 if (dri2_img->dri_image == NULL) {
2420 free(dri2_img);
2421 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2422 return EGL_NO_IMAGE_KHR;
2423 }
2424
2425 return &dri2_img->base;
2426 }
2427
2428 static EGLBoolean
2429 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2430 EGLint *name, EGLint *handle, EGLint *stride)
2431 {
2432 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2433 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2434
2435 (void) drv;
2436
2437 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2438 __DRI_IMAGE_ATTRIB_NAME, name))
2439 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2440
2441 if (handle)
2442 dri2_dpy->image->queryImage(dri2_img->dri_image,
2443 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2444
2445 if (stride)
2446 dri2_dpy->image->queryImage(dri2_img->dri_image,
2447 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2448
2449 return EGL_TRUE;
2450 }
2451
2452 static EGLBoolean
2453 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2454 _EGLImage *img,
2455 EGLint *fourcc, EGLint *nplanes,
2456 EGLuint64KHR *modifiers)
2457 {
2458 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2459 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2460
2461 (void) drv;
2462
2463
2464 if (nplanes)
2465 dri2_dpy->image->queryImage(dri2_img->dri_image,
2466 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2467 if (fourcc)
2468 dri2_dpy->image->queryImage(dri2_img->dri_image,
2469 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2470
2471 if (modifiers)
2472 *modifiers = 0;
2473
2474 return EGL_TRUE;
2475 }
2476
2477 static EGLBoolean
2478 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2479 int *fds, EGLint *strides, EGLint *offsets)
2480 {
2481 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2482 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2483
2484 (void) drv;
2485
2486 /* rework later to provide multiple fds/strides/offsets */
2487 if (fds)
2488 dri2_dpy->image->queryImage(dri2_img->dri_image,
2489 __DRI_IMAGE_ATTRIB_FD, fds);
2490
2491 if (strides)
2492 dri2_dpy->image->queryImage(dri2_img->dri_image,
2493 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2494
2495 if (offsets) {
2496 int img_offset;
2497 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2498 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2499 if (ret)
2500 offsets[0] = img_offset;
2501 else
2502 offsets[0] = 0;
2503 }
2504
2505 return EGL_TRUE;
2506 }
2507
2508 #endif
2509
2510 _EGLImage *
2511 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2512 _EGLContext *ctx, EGLenum target,
2513 EGLClientBuffer buffer, const EGLint *attr_list)
2514 {
2515 (void) drv;
2516
2517 switch (target) {
2518 case EGL_GL_TEXTURE_2D_KHR:
2519 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2520 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2521 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2522 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2523 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2524 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2525 case EGL_GL_TEXTURE_3D_KHR:
2526 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2527 case EGL_GL_RENDERBUFFER_KHR:
2528 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2529 #ifdef HAVE_LIBDRM
2530 case EGL_DRM_BUFFER_MESA:
2531 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2532 case EGL_LINUX_DMA_BUF_EXT:
2533 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2534 #endif
2535 #ifdef HAVE_WAYLAND_PLATFORM
2536 case EGL_WAYLAND_BUFFER_WL:
2537 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2538 #endif
2539 default:
2540 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2541 return EGL_NO_IMAGE_KHR;
2542 }
2543 }
2544
2545 static EGLBoolean
2546 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2547 {
2548 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2549 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2550
2551 (void) drv;
2552
2553 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2554 free(dri2_img);
2555
2556 return EGL_TRUE;
2557 }
2558
2559 #ifdef HAVE_WAYLAND_PLATFORM
2560
2561 static void
2562 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2563 struct wl_drm_buffer *buffer)
2564 {
2565 _EGLDisplay *disp = user_data;
2566 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2567 __DRIimage *img;
2568 int dri_components = 0;
2569
2570 if (fd == -1)
2571 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2572 buffer->width,
2573 buffer->height,
2574 buffer->format,
2575 (int*)&name, 1,
2576 buffer->stride,
2577 buffer->offset,
2578 NULL);
2579 else
2580 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2581 buffer->width,
2582 buffer->height,
2583 buffer->format,
2584 &fd, 1,
2585 buffer->stride,
2586 buffer->offset,
2587 NULL);
2588
2589 if (img == NULL)
2590 return;
2591
2592 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2593
2594 buffer->driver_format = NULL;
2595 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2596 if (wl_drm_components[i].dri_components == dri_components)
2597 buffer->driver_format = &wl_drm_components[i];
2598
2599 if (buffer->driver_format == NULL)
2600 dri2_dpy->image->destroyImage(img);
2601 else
2602 buffer->driver_buffer = img;
2603 }
2604
2605 static void
2606 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2607 {
2608 _EGLDisplay *disp = user_data;
2609 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2610
2611 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2612 }
2613
2614 static struct wayland_drm_callbacks wl_drm_callbacks = {
2615 .authenticate = NULL,
2616 .reference_buffer = dri2_wl_reference_buffer,
2617 .release_buffer = dri2_wl_release_buffer
2618 };
2619
2620 static EGLBoolean
2621 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2622 struct wl_display *wl_dpy)
2623 {
2624 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2625 int flags = 0;
2626 uint64_t cap;
2627
2628 (void) drv;
2629
2630 if (dri2_dpy->wl_server_drm)
2631 return EGL_FALSE;
2632
2633 wl_drm_callbacks.authenticate =
2634 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2635
2636 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2637 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2638 dri2_dpy->image->base.version >= 7 &&
2639 dri2_dpy->image->createImageFromFds != NULL)
2640 flags |= WAYLAND_DRM_PRIME;
2641
2642 dri2_dpy->wl_server_drm =
2643 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2644 &wl_drm_callbacks, disp, flags);
2645
2646 if (!dri2_dpy->wl_server_drm)
2647 return EGL_FALSE;
2648
2649 #ifdef HAVE_DRM_PLATFORM
2650 /* We have to share the wl_drm instance with gbm, so gbm can convert
2651 * wl_buffers to gbm bos. */
2652 if (dri2_dpy->gbm_dri)
2653 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2654 #endif
2655
2656 return EGL_TRUE;
2657 }
2658
2659 static EGLBoolean
2660 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2661 struct wl_display *wl_dpy)
2662 {
2663 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2664
2665 (void) drv;
2666
2667 if (!dri2_dpy->wl_server_drm)
2668 return EGL_FALSE;
2669
2670 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2671 dri2_dpy->wl_server_drm = NULL;
2672
2673 return EGL_TRUE;
2674 }
2675
2676 static EGLBoolean
2677 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2678 struct wl_resource *buffer_resource,
2679 EGLint attribute, EGLint *value)
2680 {
2681 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2682 struct wl_drm_buffer *buffer;
2683 const struct wl_drm_components_descriptor *format;
2684
2685 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2686 if (!buffer)
2687 return EGL_FALSE;
2688
2689 format = buffer->driver_format;
2690 switch (attribute) {
2691 case EGL_TEXTURE_FORMAT:
2692 *value = format->components;
2693 return EGL_TRUE;
2694 case EGL_WIDTH:
2695 *value = buffer->width;
2696 return EGL_TRUE;
2697 case EGL_HEIGHT:
2698 *value = buffer->height;
2699 return EGL_TRUE;
2700 }
2701
2702 return EGL_FALSE;
2703 }
2704 #endif
2705
2706 static void
2707 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2708 {
2709 p_atomic_inc(&sync->refcount);
2710 }
2711
2712 static void
2713 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2714 struct dri2_egl_sync *dri2_sync)
2715 {
2716 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2717 switch (dri2_sync->base.Type) {
2718 case EGL_SYNC_REUSABLE_KHR:
2719 cnd_destroy(&dri2_sync->cond);
2720 break;
2721 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2722 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2723 close(dri2_sync->base.SyncFd);
2724 break;
2725 default:
2726 break;
2727 }
2728
2729 if (dri2_sync->fence)
2730 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2731
2732 free(dri2_sync);
2733 }
2734 }
2735
2736 static _EGLSync *
2737 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2738 EGLenum type, const EGLAttrib *attrib_list)
2739 {
2740 _EGLContext *ctx = _eglGetCurrentContext();
2741 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2742 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2743 struct dri2_egl_sync *dri2_sync;
2744 EGLint ret;
2745 pthread_condattr_t attr;
2746
2747 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2748 if (!dri2_sync) {
2749 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2750 return NULL;
2751 }
2752
2753 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2754 free(dri2_sync);
2755 return NULL;
2756 }
2757
2758 switch (type) {
2759 case EGL_SYNC_FENCE_KHR:
2760 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2761 if (!dri2_sync->fence) {
2762 /* Why did it fail? DRI doesn't return an error code, so we emit
2763 * a generic EGL error that doesn't communicate user error.
2764 */
2765 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2766 free(dri2_sync);
2767 return NULL;
2768 }
2769 break;
2770
2771 case EGL_SYNC_CL_EVENT_KHR:
2772 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2773 dri2_dpy->dri_screen,
2774 dri2_sync->base.CLEvent);
2775 /* this can only happen if the cl_event passed in is invalid. */
2776 if (!dri2_sync->fence) {
2777 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2778 free(dri2_sync);
2779 return NULL;
2780 }
2781
2782 /* the initial status must be "signaled" if the cl_event is signaled */
2783 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2784 dri2_sync->fence, 0, 0))
2785 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2786 break;
2787
2788 case EGL_SYNC_REUSABLE_KHR:
2789 /* intialize attr */
2790 ret = pthread_condattr_init(&attr);
2791
2792 if (ret) {
2793 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2794 free(dri2_sync);
2795 return NULL;
2796 }
2797
2798 /* change clock attribute to CLOCK_MONOTONIC */
2799 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2800
2801 if (ret) {
2802 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2803 free(dri2_sync);
2804 return NULL;
2805 }
2806
2807 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2808
2809 if (ret) {
2810 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2811 free(dri2_sync);
2812 return NULL;
2813 }
2814
2815 /* initial status of reusable sync must be "unsignaled" */
2816 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2817 break;
2818
2819 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2820 if (dri2_dpy->fence->create_fence_fd) {
2821 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2822 dri2_ctx->dri_context,
2823 dri2_sync->base.SyncFd);
2824 }
2825 if (!dri2_sync->fence) {
2826 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2827 free(dri2_sync);
2828 return NULL;
2829 }
2830 break;
2831 }
2832
2833 p_atomic_set(&dri2_sync->refcount, 1);
2834 return &dri2_sync->base;
2835 }
2836
2837 static EGLBoolean
2838 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2839 {
2840 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2841 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2842 EGLint ret = EGL_TRUE;
2843 EGLint err;
2844
2845 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2846 * then unlock all threads possibly blocked by the reusable sync before
2847 * destroying it.
2848 */
2849 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2850 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2851 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2852 /* unblock all threads currently blocked by sync */
2853 err = cnd_broadcast(&dri2_sync->cond);
2854
2855 if (err) {
2856 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2857 ret = EGL_FALSE;
2858 }
2859 }
2860
2861 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2862
2863 return ret;
2864 }
2865
2866 static EGLint
2867 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2868 {
2869 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2870 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2871
2872 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2873
2874 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2875 /* try to retrieve the actual native fence fd.. if rendering is
2876 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2877 */
2878 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2879 dri2_sync->fence);
2880 }
2881
2882 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2883 /* if native fence fd still not created, return an error: */
2884 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2885 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2886 }
2887
2888 return dup(sync->SyncFd);
2889 }
2890
2891 static EGLint
2892 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2893 EGLint flags, EGLTime timeout)
2894 {
2895 _EGLContext *ctx = _eglGetCurrentContext();
2896 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2897 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2898 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2899 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2900 unsigned wait_flags = 0;
2901
2902 /* timespecs for cnd_timedwait */
2903 struct timespec current;
2904 xtime expire;
2905
2906 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2907
2908 /* The EGL_KHR_fence_sync spec states:
2909 *
2910 * "If no context is current for the bound API,
2911 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2912 */
2913 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2914 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2915
2916 /* the sync object should take a reference while waiting */
2917 dri2_egl_ref_sync(dri2_sync);
2918
2919 switch (sync->Type) {
2920 case EGL_SYNC_FENCE_KHR:
2921 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2922 case EGL_SYNC_CL_EVENT_KHR:
2923 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2924 dri2_sync->fence, wait_flags,
2925 timeout))
2926 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2927 else
2928 ret = EGL_TIMEOUT_EXPIRED_KHR;
2929 break;
2930
2931 case EGL_SYNC_REUSABLE_KHR:
2932 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2933 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2934 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2935 dri2_drv->glFlush();
2936 }
2937
2938 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2939 if (timeout == EGL_FOREVER_KHR) {
2940 mtx_lock(&dri2_sync->mutex);
2941 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2942 mtx_unlock(&dri2_sync->mutex);
2943 } else {
2944 /* if reusable sync has not been yet signaled */
2945 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2946 clock_gettime(CLOCK_MONOTONIC, &current);
2947
2948 /* calculating when to expire */
2949 expire.nsec = timeout % 1000000000L;
2950 expire.sec = timeout / 1000000000L;
2951
2952 expire.nsec += current.tv_nsec;
2953 expire.sec += current.tv_sec;
2954
2955 /* expire.nsec now is a number between 0 and 1999999998 */
2956 if (expire.nsec > 999999999L) {
2957 expire.sec++;
2958 expire.nsec -= 1000000000L;
2959 }
2960
2961 mtx_lock(&dri2_sync->mutex);
2962 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2963 mtx_unlock(&dri2_sync->mutex);
2964
2965 if (ret == thrd_busy) {
2966 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2967 ret = EGL_TIMEOUT_EXPIRED_KHR;
2968 } else {
2969 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2970 ret = EGL_FALSE;
2971 }
2972 }
2973 }
2974 }
2975 break;
2976 }
2977 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2978
2979 return ret;
2980 }
2981
2982 static EGLBoolean
2983 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2984 EGLenum mode)
2985 {
2986 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2987 EGLint ret;
2988
2989 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
2990 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2991
2992 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
2993 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2994
2995 dri2_sync->base.SyncStatus = mode;
2996
2997 if (mode == EGL_SIGNALED_KHR) {
2998 ret = cnd_broadcast(&dri2_sync->cond);
2999
3000 /* fail to broadcast */
3001 if (ret)
3002 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3003 }
3004
3005 return EGL_TRUE;
3006 }
3007
3008 static EGLint
3009 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
3010 {
3011 _EGLContext *ctx = _eglGetCurrentContext();
3012 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3013 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3014 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3015
3016 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3017 dri2_sync->fence, 0);
3018 return EGL_TRUE;
3019 }
3020
3021 static int
3022 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
3023 struct mesa_glinterop_device_info *out)
3024 {
3025 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3026 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3027
3028 if (!dri2_dpy->interop)
3029 return MESA_GLINTEROP_UNSUPPORTED;
3030
3031 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3032 }
3033
3034 static int
3035 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
3036 struct mesa_glinterop_export_in *in,
3037 struct mesa_glinterop_export_out *out)
3038 {
3039 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3040 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3041
3042 if (!dri2_dpy->interop)
3043 return MESA_GLINTEROP_UNSUPPORTED;
3044
3045 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3046 }
3047
3048 static void
3049 dri2_unload(_EGLDriver *drv)
3050 {
3051 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3052
3053 dlclose(dri2_drv->handle);
3054 free(dri2_drv);
3055 }
3056
3057 static EGLBoolean
3058 dri2_load(_EGLDriver *drv)
3059 {
3060 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3061 #ifdef HAVE_ANDROID_PLATFORM
3062 const char *libname = "libglapi.so";
3063 #elif defined(__APPLE__)
3064 const char *libname = "libglapi.0.dylib";
3065 #elif defined(__CYGWIN__)
3066 const char *libname = "cygglapi-0.dll";
3067 #else
3068 const char *libname = "libglapi.so.0";
3069 #endif
3070 void *handle;
3071
3072 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
3073 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
3074 if (!handle) {
3075 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
3076 goto no_handle;
3077 }
3078
3079 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
3080 dlsym(handle, "_glapi_get_proc_address");
3081
3082 /* if glapi is not available, loading DRI drivers will fail */
3083 if (!dri2_drv->get_proc_address) {
3084 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
3085 goto no_symbol;
3086 }
3087
3088 dri2_drv->glFlush = (void (*)(void))
3089 dri2_drv->get_proc_address("glFlush");
3090
3091 /* if glFlush is not available things are horribly broken */
3092 if (!dri2_drv->glFlush) {
3093 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
3094 goto no_symbol;
3095 }
3096
3097 dri2_drv->handle = handle;
3098 return EGL_TRUE;
3099
3100 no_symbol:
3101 dlclose(handle);
3102 no_handle:
3103 return EGL_FALSE;
3104 }
3105
3106 /**
3107 * This is the main entrypoint into the driver, called by libEGL.
3108 * Create a new _EGLDriver object and init its dispatch table.
3109 */
3110 _EGLDriver *
3111 _eglBuiltInDriverDRI2(const char *args)
3112 {
3113 struct dri2_egl_driver *dri2_drv;
3114
3115 (void) args;
3116
3117 dri2_drv = calloc(1, sizeof *dri2_drv);
3118 if (!dri2_drv)
3119 return NULL;
3120
3121 if (!dri2_load(&dri2_drv->base)) {
3122 free(dri2_drv);
3123 return NULL;
3124 }
3125
3126 _eglInitDriverFallbacks(&dri2_drv->base);
3127 dri2_drv->base.API.Initialize = dri2_initialize;
3128 dri2_drv->base.API.Terminate = dri2_terminate;
3129 dri2_drv->base.API.CreateContext = dri2_create_context;
3130 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
3131 dri2_drv->base.API.MakeCurrent = dri2_make_current;
3132 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
3133 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
3134 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3135 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
3136 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
3137 dri2_drv->base.API.WaitClient = dri2_wait_client;
3138 dri2_drv->base.API.WaitNative = dri2_wait_native;
3139 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
3140 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
3141 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
3142 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
3143 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3144 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3145 dri2_drv->base.API.SetDamageRegion = dri2_set_damage_region;
3146 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
3147 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
3148 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
3149 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
3150 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
3151 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3152 dri2_drv->base.API.QuerySurface = dri2_query_surface;
3153 #ifdef HAVE_LIBDRM
3154 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3155 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3156 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3157 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3158 dri2_drv->base.API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3159 dri2_drv->base.API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3160 #endif
3161 #ifdef HAVE_WAYLAND_PLATFORM
3162 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3163 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3164 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3165 #endif
3166 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3167 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
3168 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
3169 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
3170 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
3171 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
3172 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3173 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
3174 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3175
3176 dri2_drv->base.Name = "DRI2";
3177 dri2_drv->base.Unload = dri2_unload;
3178
3179 return &dri2_drv->base;
3180 }