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egl: don't NULL deref the .get_capabilities function pointer
[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 <sys/types.h>
50 #include <sys/stat.h>
51
52 #ifdef HAVE_WAYLAND_PLATFORM
53 #include "wayland-drm.h"
54 #include "wayland-drm-client-protocol.h"
55 #include "linux-dmabuf-unstable-v1-client-protocol.h"
56 #endif
57
58 #ifdef HAVE_X11_PLATFORM
59 #include "X11/Xlibint.h"
60 #endif
61
62 #include "egl_dri2.h"
63 #include "GL/mesa_glinterop.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 dri2_dpy->fence->get_capabilities) {
682 unsigned capabilities =
683 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
684 disp->Extensions.ANDROID_native_fence_sync =
685 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
686 }
687 }
688
689 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
690
691 if (dri2_dpy->image) {
692 if (dri2_dpy->image->base.version >= 10 &&
693 dri2_dpy->image->getCapabilities != NULL) {
694 int capabilities;
695
696 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
697 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
698
699 if (dri2_dpy->image->base.version >= 11)
700 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
701 } else {
702 disp->Extensions.MESA_drm_image = EGL_TRUE;
703 if (dri2_dpy->image->base.version >= 11)
704 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
705 }
706
707 disp->Extensions.KHR_image_base = EGL_TRUE;
708 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
709 if (dri2_dpy->image->base.version >= 5 &&
710 dri2_dpy->image->createImageFromTexture) {
711 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
712 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
713
714 if (dri2_renderer_query_integer(dri2_dpy,
715 __DRI2_RENDERER_HAS_TEXTURE_3D))
716 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
717 }
718 #ifdef HAVE_LIBDRM
719 if (dri2_dpy->image->base.version >= 8 &&
720 dri2_dpy->image->createImageFromDmaBufs) {
721 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
722 }
723 if (dri2_dpy->image->base.version >= 15 &&
724 dri2_dpy->image->createImageFromDmaBufs2 &&
725 dri2_dpy->image->queryDmaBufFormats &&
726 dri2_dpy->image->queryDmaBufModifiers) {
727 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
728 }
729 #endif
730 }
731 }
732
733 void
734 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
735 {
736 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
737 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
738
739 /* Allow driconf to override applications.*/
740 if (dri2_dpy->config)
741 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
742 "vblank_mode", &vblank_mode);
743 switch (vblank_mode) {
744 case DRI_CONF_VBLANK_NEVER:
745 dri2_dpy->min_swap_interval = 0;
746 dri2_dpy->max_swap_interval = 0;
747 dri2_dpy->default_swap_interval = 0;
748 break;
749 case DRI_CONF_VBLANK_ALWAYS_SYNC:
750 dri2_dpy->min_swap_interval = 1;
751 dri2_dpy->max_swap_interval = max_swap_interval;
752 dri2_dpy->default_swap_interval = 1;
753 break;
754 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
755 dri2_dpy->min_swap_interval = 0;
756 dri2_dpy->max_swap_interval = max_swap_interval;
757 dri2_dpy->default_swap_interval = 0;
758 break;
759 default:
760 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
761 dri2_dpy->min_swap_interval = 0;
762 dri2_dpy->max_swap_interval = max_swap_interval;
763 dri2_dpy->default_swap_interval = 1;
764 break;
765 }
766 }
767
768 /* All platforms but DRM call this function to create the screen and populate
769 * the driver_configs. DRM inherits that information from its display - GBM.
770 */
771 EGLBoolean
772 dri2_create_screen(_EGLDisplay *disp)
773 {
774 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
775
776 if (dri2_dpy->image_driver) {
777 dri2_dpy->dri_screen =
778 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
779 dri2_dpy->loader_extensions,
780 dri2_dpy->driver_extensions,
781 &dri2_dpy->driver_configs,
782 disp);
783 } else if (dri2_dpy->dri2) {
784 if (dri2_dpy->dri2->base.version >= 4) {
785 dri2_dpy->dri_screen =
786 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
787 dri2_dpy->loader_extensions,
788 dri2_dpy->driver_extensions,
789 &dri2_dpy->driver_configs, disp);
790 } else {
791 dri2_dpy->dri_screen =
792 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
793 dri2_dpy->loader_extensions,
794 &dri2_dpy->driver_configs, disp);
795 }
796 } else {
797 assert(dri2_dpy->swrast);
798 if (dri2_dpy->swrast->base.version >= 4) {
799 dri2_dpy->dri_screen =
800 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
801 dri2_dpy->driver_extensions,
802 &dri2_dpy->driver_configs, disp);
803 } else {
804 dri2_dpy->dri_screen =
805 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
806 &dri2_dpy->driver_configs, disp);
807 }
808 }
809
810 if (dri2_dpy->dri_screen == NULL) {
811 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
812 return EGL_FALSE;
813 }
814
815 dri2_dpy->own_dri_screen = true;
816 return EGL_TRUE;
817 }
818
819 EGLBoolean
820 dri2_setup_extensions(_EGLDisplay *disp)
821 {
822 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
823 const struct dri2_extension_match *mandatory_core_extensions;
824 const __DRIextension **extensions;
825
826 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
827
828 if (dri2_dpy->image_driver || dri2_dpy->dri2)
829 mandatory_core_extensions = dri2_core_extensions;
830 else
831 mandatory_core_extensions = swrast_core_extensions;
832
833 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
834 return EGL_FALSE;
835
836 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
837 return EGL_TRUE;
838 }
839
840 /**
841 * Called via eglInitialize(), GLX_drv->API.Initialize().
842 *
843 * This must be guaranteed to be called exactly once, even if eglInitialize is
844 * called many times (without a eglTerminate in between).
845 */
846 static EGLBoolean
847 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
848 {
849 EGLBoolean ret = EGL_FALSE;
850 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
851
852 /* In the case where the application calls eglMakeCurrent(context1),
853 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
854 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
855 * initialized, as we need it to be able to free context1 correctly.
856 *
857 * It would probably be safest to forcibly release the display with
858 * dri2_display_release, to make sure the display is reinitialized correctly.
859 * However, the EGL spec states that we need to keep a reference to the
860 * current context (so we cannot call dri2_make_current(NULL)), and therefore
861 * we would leak context1 as we would be missing the old display connection
862 * to free it up correctly.
863 */
864 if (dri2_dpy) {
865 dri2_dpy->ref_count++;
866 return EGL_TRUE;
867 }
868
869 /* not until swrast_dri is supported */
870 if (disp->Options.UseFallback)
871 return EGL_FALSE;
872
873 /* Nothing to initialize for a test only display */
874 if (disp->Options.TestOnly)
875 return EGL_TRUE;
876
877 switch (disp->Platform) {
878 #ifdef HAVE_SURFACELESS_PLATFORM
879 case _EGL_PLATFORM_SURFACELESS:
880 ret = dri2_initialize_surfaceless(drv, disp);
881 break;
882 #endif
883 #ifdef HAVE_X11_PLATFORM
884 case _EGL_PLATFORM_X11:
885 ret = dri2_initialize_x11(drv, disp);
886 break;
887 #endif
888 #ifdef HAVE_DRM_PLATFORM
889 case _EGL_PLATFORM_DRM:
890 ret = dri2_initialize_drm(drv, disp);
891 break;
892 #endif
893 #ifdef HAVE_WAYLAND_PLATFORM
894 case _EGL_PLATFORM_WAYLAND:
895 ret = dri2_initialize_wayland(drv, disp);
896 break;
897 #endif
898 #ifdef HAVE_ANDROID_PLATFORM
899 case _EGL_PLATFORM_ANDROID:
900 ret = dri2_initialize_android(drv, disp);
901 break;
902 #endif
903 default:
904 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
905 return EGL_FALSE;
906 }
907
908 if (ret) {
909 dri2_dpy = dri2_egl_display(disp);
910
911 if (!dri2_dpy) {
912 return EGL_FALSE;
913 }
914
915 dri2_dpy->ref_count++;
916 }
917
918 return ret;
919 }
920
921 /**
922 * Decrement display reference count, and free up display if necessary.
923 */
924 static void
925 dri2_display_release(_EGLDisplay *disp)
926 {
927 struct dri2_egl_display *dri2_dpy;
928
929 if (!disp)
930 return;
931
932 dri2_dpy = dri2_egl_display(disp);
933
934 assert(dri2_dpy->ref_count > 0);
935 dri2_dpy->ref_count--;
936
937 if (dri2_dpy->ref_count > 0)
938 return;
939
940 _eglCleanupDisplay(disp);
941 dri2_display_destroy(disp);
942 }
943
944 void
945 dri2_display_destroy(_EGLDisplay *disp)
946 {
947 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
948
949 if (dri2_dpy->own_dri_screen) {
950 if (dri2_dpy->vtbl->close_screen_notify)
951 dri2_dpy->vtbl->close_screen_notify(disp);
952 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
953 }
954 if (dri2_dpy->fd >= 0)
955 close(dri2_dpy->fd);
956 if (dri2_dpy->driver)
957 dlclose(dri2_dpy->driver);
958 free(dri2_dpy->driver_name);
959
960 #ifdef HAVE_WAYLAND_PLATFORM
961 free(dri2_dpy->device_name);
962 #endif
963
964 switch (disp->Platform) {
965 #ifdef HAVE_X11_PLATFORM
966 case _EGL_PLATFORM_X11:
967 if (dri2_dpy->own_device) {
968 xcb_disconnect(dri2_dpy->conn);
969 }
970 break;
971 #endif
972 #ifdef HAVE_DRM_PLATFORM
973 case _EGL_PLATFORM_DRM:
974 if (dri2_dpy->own_device) {
975 gbm_device_destroy(&dri2_dpy->gbm_dri->base);
976 }
977 break;
978 #endif
979 #ifdef HAVE_WAYLAND_PLATFORM
980 case _EGL_PLATFORM_WAYLAND:
981 if (dri2_dpy->wl_drm)
982 wl_drm_destroy(dri2_dpy->wl_drm);
983 if (dri2_dpy->wl_dmabuf)
984 zwp_linux_dmabuf_v1_destroy(dri2_dpy->wl_dmabuf);
985 if (dri2_dpy->wl_shm)
986 wl_shm_destroy(dri2_dpy->wl_shm);
987 wl_registry_destroy(dri2_dpy->wl_registry);
988 wl_event_queue_destroy(dri2_dpy->wl_queue);
989 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
990 u_vector_finish(&dri2_dpy->wl_modifiers.argb8888);
991 u_vector_finish(&dri2_dpy->wl_modifiers.xrgb8888);
992 u_vector_finish(&dri2_dpy->wl_modifiers.rgb565);
993 if (dri2_dpy->own_device) {
994 wl_display_disconnect(dri2_dpy->wl_dpy);
995 }
996 break;
997 #endif
998 default:
999 break;
1000 }
1001
1002 /* The drm platform does not create the screen/driver_configs but reuses
1003 * the ones from the gbm device. As such the gbm itself is responsible
1004 * for the cleanup.
1005 */
1006 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1007 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1008 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1009 free(dri2_dpy->driver_configs);
1010 }
1011 free(dri2_dpy);
1012 disp->DriverData = NULL;
1013 }
1014
1015 __DRIbuffer *
1016 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
1017 unsigned int att, unsigned int format)
1018 {
1019 struct dri2_egl_display *dri2_dpy =
1020 dri2_egl_display(dri2_surf->base.Resource.Display);
1021
1022 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
1023 return NULL;
1024
1025 if (!dri2_surf->local_buffers[att]) {
1026 dri2_surf->local_buffers[att] =
1027 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
1028 dri2_surf->base.Width, dri2_surf->base.Height);
1029 }
1030
1031 return dri2_surf->local_buffers[att];
1032 }
1033
1034 void
1035 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
1036 {
1037 struct dri2_egl_display *dri2_dpy =
1038 dri2_egl_display(dri2_surf->base.Resource.Display);
1039
1040 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1041 if (dri2_surf->local_buffers[i]) {
1042 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1043 dri2_surf->local_buffers[i]);
1044 dri2_surf->local_buffers[i] = NULL;
1045 }
1046 }
1047 }
1048
1049 /**
1050 * Called via eglTerminate(), drv->API.Terminate().
1051 *
1052 * This must be guaranteed to be called exactly once, even if eglTerminate is
1053 * called many times (without a eglInitialize in between).
1054 */
1055 static EGLBoolean
1056 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1057 {
1058 /* Release all non-current Context/Surfaces. */
1059 _eglReleaseDisplayResources(drv, disp);
1060
1061 dri2_display_release(disp);
1062
1063 return EGL_TRUE;
1064 }
1065
1066 /**
1067 * Set the error code after a call to
1068 * dri2_egl_display::dri2::createContextAttribs.
1069 */
1070 static void
1071 dri2_create_context_attribs_error(int dri_error)
1072 {
1073 EGLint egl_error;
1074
1075 switch (dri_error) {
1076 case __DRI_CTX_ERROR_SUCCESS:
1077 return;
1078
1079 case __DRI_CTX_ERROR_NO_MEMORY:
1080 egl_error = EGL_BAD_ALLOC;
1081 break;
1082
1083 /* From the EGL_KHR_create_context spec, section "Errors":
1084 *
1085 * * If <config> does not support a client API context compatible
1086 * with the requested API major and minor version, [...] context flags,
1087 * and context reset notification behavior (for client API types where
1088 * these attributes are supported), then an EGL_BAD_MATCH error is
1089 * generated.
1090 *
1091 * * If an OpenGL ES context is requested and the values for
1092 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1093 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1094 * is not defined, than an EGL_BAD_MATCH error is generated.
1095 *
1096 * * If an OpenGL context is requested, the requested version is
1097 * greater than 3.2, and the value for attribute
1098 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1099 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1100 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1101 * one of these bits set; or if the implementation does not support
1102 * the requested profile, then an EGL_BAD_MATCH error is generated.
1103 */
1104 case __DRI_CTX_ERROR_BAD_API:
1105 case __DRI_CTX_ERROR_BAD_VERSION:
1106 case __DRI_CTX_ERROR_BAD_FLAG:
1107 egl_error = EGL_BAD_MATCH;
1108 break;
1109
1110 /* From the EGL_KHR_create_context spec, section "Errors":
1111 *
1112 * * If an attribute name or attribute value in <attrib_list> is not
1113 * recognized (including unrecognized bits in bitmask attributes),
1114 * then an EGL_BAD_ATTRIBUTE error is generated."
1115 */
1116 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1117 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1118 egl_error = EGL_BAD_ATTRIBUTE;
1119 break;
1120
1121 default:
1122 assert(0);
1123 egl_error = EGL_BAD_MATCH;
1124 break;
1125 }
1126
1127 _eglError(egl_error, "dri2_create_context");
1128 }
1129
1130 static bool
1131 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1132 struct dri2_egl_display *dri2_dpy,
1133 uint32_t *ctx_attribs,
1134 unsigned *num_attribs)
1135 {
1136 int pos = 0;
1137
1138 assert(*num_attribs >= 8);
1139
1140 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1141 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1142 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1143 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1144
1145 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1146 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1147 * extension, don't even try to send it the robust-access flag.
1148 * It may explode. Instead, generate the required EGL error here.
1149 */
1150 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1151 && !dri2_dpy->robustness) {
1152 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1153 return false;
1154 }
1155
1156 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1157 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1158 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1159 }
1160
1161 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1162 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1163 * extension, don't even try to send it a reset strategy. It may
1164 * explode. Instead, generate the required EGL error here.
1165 */
1166 if (!dri2_dpy->robustness) {
1167 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1168 return false;
1169 }
1170
1171 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1172 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1173 }
1174
1175 *num_attribs = pos;
1176
1177 return true;
1178 }
1179
1180 /**
1181 * Called via eglCreateContext(), drv->API.CreateContext().
1182 */
1183 static _EGLContext *
1184 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1185 _EGLContext *share_list, const EGLint *attrib_list)
1186 {
1187 struct dri2_egl_context *dri2_ctx;
1188 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1189 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1190 __DRIcontext *shared =
1191 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1192 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1193 const __DRIconfig *dri_config;
1194 int api;
1195
1196 (void) drv;
1197
1198 dri2_ctx = malloc(sizeof *dri2_ctx);
1199 if (!dri2_ctx) {
1200 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1201 return NULL;
1202 }
1203
1204 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1205 goto cleanup;
1206
1207 /* The EGL_EXT_create_context_robustness spec says:
1208 *
1209 * "Add to the eglCreateContext context creation errors: [...]
1210 *
1211 * * If the reset notification behavior of <share_context> and the
1212 * newly created context are different then an EGL_BAD_MATCH error is
1213 * generated."
1214 */
1215 if (share_list && share_list->ResetNotificationStrategy !=
1216 dri2_ctx->base.ResetNotificationStrategy) {
1217 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1218 goto cleanup;
1219 }
1220
1221 /* The EGL_KHR_create_context_no_error spec says:
1222 *
1223 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1224 * used to create <share_context> does not match the value of
1225 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1226 */
1227 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1228 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1229 goto cleanup;
1230 }
1231
1232 switch (dri2_ctx->base.ClientAPI) {
1233 case EGL_OPENGL_ES_API:
1234 switch (dri2_ctx->base.ClientMajorVersion) {
1235 case 1:
1236 api = __DRI_API_GLES;
1237 break;
1238 case 2:
1239 api = __DRI_API_GLES2;
1240 break;
1241 case 3:
1242 api = __DRI_API_GLES3;
1243 break;
1244 default:
1245 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1246 free(dri2_ctx);
1247 return NULL;
1248 }
1249 break;
1250 case EGL_OPENGL_API:
1251 if ((dri2_ctx->base.ClientMajorVersion >= 4
1252 || (dri2_ctx->base.ClientMajorVersion == 3
1253 && dri2_ctx->base.ClientMinorVersion >= 2))
1254 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1255 api = __DRI_API_OPENGL_CORE;
1256 else
1257 api = __DRI_API_OPENGL;
1258 break;
1259 default:
1260 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1261 free(dri2_ctx);
1262 return NULL;
1263 }
1264
1265 if (conf != NULL) {
1266 /* The config chosen here isn't necessarily
1267 * used for surfaces later.
1268 * A pixmap surface will use the single config.
1269 * This opportunity depends on disabling the
1270 * doubleBufferMode check in
1271 * src/mesa/main/context.c:check_compatible()
1272 */
1273 if (dri2_config->dri_config[1][0])
1274 dri_config = dri2_config->dri_config[1][0];
1275 else
1276 dri_config = dri2_config->dri_config[0][0];
1277
1278 /* EGL_WINDOW_BIT is set only when there is a double-buffered dri_config.
1279 * This makes sure the back buffer will always be used.
1280 */
1281 if (conf->SurfaceType & EGL_WINDOW_BIT)
1282 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1283 }
1284 else
1285 dri_config = NULL;
1286
1287 if (dri2_dpy->image_driver) {
1288 unsigned error;
1289 unsigned num_attribs = 8;
1290 uint32_t ctx_attribs[8];
1291
1292 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1293 &num_attribs))
1294 goto cleanup;
1295
1296 dri2_ctx->dri_context =
1297 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1298 api,
1299 dri_config,
1300 shared,
1301 num_attribs / 2,
1302 ctx_attribs,
1303 & error,
1304 dri2_ctx);
1305 dri2_create_context_attribs_error(error);
1306 } else if (dri2_dpy->dri2) {
1307 if (dri2_dpy->dri2->base.version >= 3) {
1308 unsigned error;
1309 unsigned num_attribs = 8;
1310 uint32_t ctx_attribs[8];
1311
1312 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1313 &num_attribs))
1314 goto cleanup;
1315
1316 dri2_ctx->dri_context =
1317 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1318 api,
1319 dri_config,
1320 shared,
1321 num_attribs / 2,
1322 ctx_attribs,
1323 & error,
1324 dri2_ctx);
1325 dri2_create_context_attribs_error(error);
1326 } else {
1327 dri2_ctx->dri_context =
1328 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1329 api,
1330 dri_config,
1331 shared,
1332 dri2_ctx);
1333 }
1334 } else {
1335 assert(dri2_dpy->swrast);
1336 if (dri2_dpy->swrast->base.version >= 3) {
1337 unsigned error;
1338 unsigned num_attribs = 8;
1339 uint32_t ctx_attribs[8];
1340
1341 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1342 &num_attribs))
1343 goto cleanup;
1344
1345 dri2_ctx->dri_context =
1346 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1347 api,
1348 dri_config,
1349 shared,
1350 num_attribs / 2,
1351 ctx_attribs,
1352 & error,
1353 dri2_ctx);
1354 dri2_create_context_attribs_error(error);
1355 } else {
1356 dri2_ctx->dri_context =
1357 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1358 api,
1359 dri_config,
1360 shared,
1361 dri2_ctx);
1362 }
1363 }
1364
1365 if (!dri2_ctx->dri_context)
1366 goto cleanup;
1367
1368 return &dri2_ctx->base;
1369
1370 cleanup:
1371 free(dri2_ctx);
1372 return NULL;
1373 }
1374
1375 /**
1376 * Called via eglDestroyContext(), drv->API.DestroyContext().
1377 */
1378 static EGLBoolean
1379 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1380 {
1381 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1382 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1383
1384 if (_eglPutContext(ctx)) {
1385 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1386 free(dri2_ctx);
1387 }
1388
1389 return EGL_TRUE;
1390 }
1391
1392 static EGLBoolean
1393 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1394 {
1395 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1396
1397 if (!_eglPutSurface(surf))
1398 return EGL_TRUE;
1399
1400 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1401 }
1402
1403 /**
1404 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1405 */
1406 static EGLBoolean
1407 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1408 _EGLSurface *rsurf, _EGLContext *ctx)
1409 {
1410 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1411 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1412 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1413 _EGLContext *old_ctx;
1414 _EGLSurface *old_dsurf, *old_rsurf;
1415 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1416 __DRIdrawable *ddraw, *rdraw;
1417 __DRIcontext *cctx;
1418 EGLBoolean unbind;
1419
1420 if (!dri2_dpy)
1421 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1422
1423 /* make new bindings */
1424 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1425 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1426 return EGL_FALSE;
1427 }
1428
1429 /* flush before context switch */
1430 if (old_ctx)
1431 dri2_drv->glFlush();
1432
1433 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1434 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1435 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1436
1437 if (old_ctx) {
1438 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1439 dri2_dpy->core->unbindContext(old_cctx);
1440 }
1441
1442 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1443
1444 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1445 dri2_destroy_surface(drv, disp, old_dsurf);
1446 dri2_destroy_surface(drv, disp, old_rsurf);
1447
1448 if (!unbind)
1449 dri2_dpy->ref_count++;
1450 if (old_ctx) {
1451 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1452 dri2_destroy_context(drv, disp, old_ctx);
1453 dri2_display_release(old_disp);
1454 }
1455
1456 return EGL_TRUE;
1457 } else {
1458 /* undo the previous _eglBindContext */
1459 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1460 assert(&dri2_ctx->base == ctx &&
1461 tmp_dsurf == dsurf &&
1462 tmp_rsurf == rsurf);
1463
1464 _eglPutSurface(dsurf);
1465 _eglPutSurface(rsurf);
1466 _eglPutContext(ctx);
1467
1468 _eglPutSurface(old_dsurf);
1469 _eglPutSurface(old_rsurf);
1470 _eglPutContext(old_ctx);
1471
1472 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1473 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1474 * as EGL_SUCCESS.
1475 */
1476 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1477 }
1478 }
1479
1480 __DRIdrawable *
1481 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1482 {
1483 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1484
1485 return dri2_surf->dri_drawable;
1486 }
1487
1488 /*
1489 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1490 */
1491 static _EGLProc
1492 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1493 {
1494 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1495
1496 return dri2_drv->get_proc_address(procname);
1497 }
1498
1499 static _EGLSurface*
1500 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1501 _EGLConfig *conf, void *native_window,
1502 const EGLint *attrib_list)
1503 {
1504 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1505 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1506 attrib_list);
1507 }
1508
1509 static _EGLSurface*
1510 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1511 _EGLConfig *conf, void *native_pixmap,
1512 const EGLint *attrib_list)
1513 {
1514 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1515 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1516 attrib_list);
1517 }
1518
1519 static _EGLSurface*
1520 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1521 _EGLConfig *conf, const EGLint *attrib_list)
1522 {
1523 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1524 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1525 }
1526
1527 static EGLBoolean
1528 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1529 EGLint interval)
1530 {
1531 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1532 if (!dri2_dpy->vtbl->swap_interval)
1533 return EGL_TRUE;
1534 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1535 }
1536
1537 /**
1538 * Asks the client API to flush any rendering to the drawable so that we can
1539 * do our swapbuffers.
1540 */
1541 void
1542 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1543 {
1544 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1545 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1546
1547 if (dri2_dpy->flush) {
1548 if (dri2_dpy->flush->base.version >= 4) {
1549 /* We know there's a current context because:
1550 *
1551 * "If surface is not bound to the calling thread’s current
1552 * context, an EGL_BAD_SURFACE error is generated."
1553 */
1554 _EGLContext *ctx = _eglGetCurrentContext();
1555 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1556
1557 /* From the EGL 1.4 spec (page 52):
1558 *
1559 * "The contents of ancillary buffers are always undefined
1560 * after calling eglSwapBuffers."
1561 */
1562 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1563 dri_drawable,
1564 __DRI2_FLUSH_DRAWABLE |
1565 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1566 __DRI2_THROTTLE_SWAPBUFFER);
1567 } else {
1568 dri2_dpy->flush->flush(dri_drawable);
1569 }
1570 }
1571 }
1572
1573 static EGLBoolean
1574 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1575 {
1576 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1577 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1578 }
1579
1580 static EGLBoolean
1581 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1582 _EGLSurface *surf,
1583 const EGLint *rects, EGLint n_rects)
1584 {
1585 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1586 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1587 rects, n_rects);
1588 }
1589
1590 static EGLBoolean
1591 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1592 EGLint numRects, const EGLint *rects)
1593 {
1594 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1595 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1596 }
1597
1598 static EGLBoolean
1599 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1600 EGLint *rects, EGLint n_rects)
1601 {
1602 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1603 return dri2_dpy->vtbl->set_damage_region(drv, dpy, surf, rects, n_rects);
1604 }
1605
1606 static EGLBoolean
1607 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1608 EGLint x, EGLint y, EGLint width, EGLint height)
1609 {
1610 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1611 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1612 }
1613
1614 static EGLBoolean
1615 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1616 void *native_pixmap_target)
1617 {
1618 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1619 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1620 }
1621
1622 static EGLint
1623 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1624 {
1625 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1626 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1627 }
1628
1629 static EGLBoolean
1630 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1631 {
1632 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1633 _EGLSurface *surf = ctx->DrawSurface;
1634 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1635
1636 (void) drv;
1637
1638 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1639 * we need to copy fake to real here.*/
1640
1641 if (dri2_dpy->flush != NULL)
1642 dri2_dpy->flush->flush(dri_drawable);
1643
1644 return EGL_TRUE;
1645 }
1646
1647 static EGLBoolean
1648 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1649 {
1650 (void) drv;
1651 (void) disp;
1652
1653 if (engine != EGL_CORE_NATIVE_ENGINE)
1654 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1655 /* glXWaitX(); */
1656
1657 return EGL_TRUE;
1658 }
1659
1660 static EGLBoolean
1661 dri2_bind_tex_image(_EGLDriver *drv,
1662 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1663 {
1664 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1665 struct dri2_egl_context *dri2_ctx;
1666 _EGLContext *ctx;
1667 GLint format, target;
1668 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1669
1670 ctx = _eglGetCurrentContext();
1671 dri2_ctx = dri2_egl_context(ctx);
1672
1673 if (!_eglBindTexImage(drv, disp, surf, buffer))
1674 return EGL_FALSE;
1675
1676 switch (surf->TextureFormat) {
1677 case EGL_TEXTURE_RGB:
1678 format = __DRI_TEXTURE_FORMAT_RGB;
1679 break;
1680 case EGL_TEXTURE_RGBA:
1681 format = __DRI_TEXTURE_FORMAT_RGBA;
1682 break;
1683 default:
1684 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1685 format = __DRI_TEXTURE_FORMAT_RGBA;
1686 }
1687
1688 switch (surf->TextureTarget) {
1689 case EGL_TEXTURE_2D:
1690 target = GL_TEXTURE_2D;
1691 break;
1692 default:
1693 target = GL_TEXTURE_2D;
1694 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1695 }
1696
1697 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1698 target, format,
1699 dri_drawable);
1700
1701 return EGL_TRUE;
1702 }
1703
1704 static EGLBoolean
1705 dri2_release_tex_image(_EGLDriver *drv,
1706 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1707 {
1708 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1709 struct dri2_egl_context *dri2_ctx;
1710 _EGLContext *ctx;
1711 GLint target;
1712 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1713
1714 ctx = _eglGetCurrentContext();
1715 dri2_ctx = dri2_egl_context(ctx);
1716
1717 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1718 return EGL_FALSE;
1719
1720 switch (surf->TextureTarget) {
1721 case EGL_TEXTURE_2D:
1722 target = GL_TEXTURE_2D;
1723 break;
1724 default:
1725 assert(0);
1726 }
1727
1728 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1729 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1730 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1731 target, dri_drawable);
1732 }
1733
1734 return EGL_TRUE;
1735 }
1736
1737 static _EGLImage*
1738 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1739 EGLenum target, EGLClientBuffer buffer,
1740 const EGLint *attr_list)
1741 {
1742 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1743 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1744 attr_list);
1745 }
1746
1747 static _EGLImage *
1748 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1749 {
1750 struct dri2_egl_image *dri2_img;
1751
1752 if (dri_image == NULL) {
1753 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1754 return NULL;
1755 }
1756
1757 dri2_img = malloc(sizeof *dri2_img);
1758 if (!dri2_img) {
1759 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1760 return NULL;
1761 }
1762
1763 _eglInitImage(&dri2_img->base, disp);
1764
1765 dri2_img->dri_image = dri_image;
1766
1767 return &dri2_img->base;
1768 }
1769
1770 static _EGLImage *
1771 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1772 EGLClientBuffer buffer,
1773 const EGLint *attr_list)
1774 {
1775 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1776 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1777 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1778 __DRIimage *dri_image;
1779
1780 if (renderbuffer == 0) {
1781 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1782 return EGL_NO_IMAGE_KHR;
1783 }
1784
1785 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
1786 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1787 return EGL_NO_IMAGE_KHR;
1788 }
1789
1790 dri_image =
1791 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1792 renderbuffer, NULL);
1793
1794 return dri2_create_image_from_dri(disp, dri_image);
1795 }
1796
1797 #ifdef HAVE_WAYLAND_PLATFORM
1798
1799 /* This structure describes how a wl_buffer maps to one or more
1800 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1801 * offsets and strides of the planes in the buffer. This table maps a
1802 * wl_drm format code to a description of the planes in the buffer
1803 * that lets us create a __DRIimage for each of the planes. */
1804
1805 static const struct wl_drm_components_descriptor {
1806 uint32_t dri_components;
1807 EGLint components;
1808 int nplanes;
1809 } wl_drm_components[] = {
1810 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1811 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1812 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1813 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1814 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1815 };
1816
1817 static _EGLImage *
1818 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1819 EGLClientBuffer _buffer,
1820 const EGLint *attr_list)
1821 {
1822 struct wl_drm_buffer *buffer;
1823 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1824 const struct wl_drm_components_descriptor *f;
1825 __DRIimage *dri_image;
1826 _EGLImageAttribs attrs;
1827 int32_t plane;
1828
1829 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1830 (struct wl_resource *) _buffer);
1831 if (!buffer)
1832 return NULL;
1833
1834 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1835 return NULL;
1836
1837 plane = attrs.PlaneWL;
1838 f = buffer->driver_format;
1839 if (plane < 0 || plane >= f->nplanes) {
1840 _eglError(EGL_BAD_PARAMETER,
1841 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1842 return NULL;
1843 }
1844
1845 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1846
1847 if (dri_image == NULL) {
1848 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1849 return NULL;
1850 }
1851
1852 return dri2_create_image_from_dri(disp, dri_image);
1853 }
1854 #endif
1855
1856 static EGLBoolean
1857 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1858 EGLuint64KHR *ust, EGLuint64KHR *msc,
1859 EGLuint64KHR *sbc)
1860 {
1861 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1862 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1863 }
1864
1865 /**
1866 * Set the error code after a call to
1867 * dri2_egl_image::dri_image::createImageFromTexture.
1868 */
1869 static void
1870 dri2_create_image_khr_texture_error(int dri_error)
1871 {
1872 EGLint egl_error;
1873
1874 switch (dri_error) {
1875 case __DRI_IMAGE_ERROR_SUCCESS:
1876 return;
1877
1878 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1879 egl_error = EGL_BAD_ALLOC;
1880 break;
1881
1882 case __DRI_IMAGE_ERROR_BAD_MATCH:
1883 egl_error = EGL_BAD_MATCH;
1884 break;
1885
1886 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1887 egl_error = EGL_BAD_PARAMETER;
1888 break;
1889
1890 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1891 egl_error = EGL_BAD_ACCESS;
1892 break;
1893
1894 default:
1895 assert(0);
1896 egl_error = EGL_BAD_MATCH;
1897 break;
1898 }
1899
1900 _eglError(egl_error, "dri2_create_image_khr_texture");
1901 }
1902
1903 static _EGLImage *
1904 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1905 EGLenum target,
1906 EGLClientBuffer buffer,
1907 const EGLint *attr_list)
1908 {
1909 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1910 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1911 struct dri2_egl_image *dri2_img;
1912 GLuint texture = (GLuint) (uintptr_t) buffer;
1913 _EGLImageAttribs attrs;
1914 GLuint depth;
1915 GLenum gl_target;
1916 unsigned error;
1917
1918 if (texture == 0) {
1919 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1920 return EGL_NO_IMAGE_KHR;
1921 }
1922
1923 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1924 return EGL_NO_IMAGE_KHR;
1925
1926 switch (target) {
1927 case EGL_GL_TEXTURE_2D_KHR:
1928 if (!disp->Extensions.KHR_gl_texture_2D_image) {
1929 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1930 return EGL_NO_IMAGE_KHR;
1931 }
1932 depth = 0;
1933 gl_target = GL_TEXTURE_2D;
1934 break;
1935 case EGL_GL_TEXTURE_3D_KHR:
1936 if (!disp->Extensions.KHR_gl_texture_3D_image) {
1937 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1938 return EGL_NO_IMAGE_KHR;
1939 }
1940
1941 depth = attrs.GLTextureZOffset;
1942 gl_target = GL_TEXTURE_3D;
1943 break;
1944 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1945 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1946 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1947 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1948 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1949 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1950 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
1951 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1952 return EGL_NO_IMAGE_KHR;
1953 }
1954
1955 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1956 gl_target = GL_TEXTURE_CUBE_MAP;
1957 break;
1958 default:
1959 unreachable("Unexpected target in dri2_create_image_khr_texture()");
1960 return EGL_NO_IMAGE_KHR;
1961 }
1962
1963 dri2_img = malloc(sizeof *dri2_img);
1964 if (!dri2_img) {
1965 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1966 return EGL_NO_IMAGE_KHR;
1967 }
1968
1969 _eglInitImage(&dri2_img->base, disp);
1970
1971 dri2_img->dri_image =
1972 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1973 gl_target,
1974 texture,
1975 depth,
1976 attrs.GLTextureLevel,
1977 &error,
1978 dri2_img);
1979 dri2_create_image_khr_texture_error(error);
1980
1981 if (!dri2_img->dri_image) {
1982 free(dri2_img);
1983 return EGL_NO_IMAGE_KHR;
1984 }
1985 return &dri2_img->base;
1986 }
1987
1988 static EGLBoolean
1989 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1990 EGLint attribute, EGLint *value)
1991 {
1992 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1993 if (!dri2_dpy->vtbl->query_surface)
1994 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1995 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1996 }
1997
1998 static struct wl_buffer*
1999 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
2000 _EGLImage *img)
2001 {
2002 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2003 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
2004 }
2005
2006 #ifdef HAVE_LIBDRM
2007 static _EGLImage *
2008 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2009 EGLClientBuffer buffer, const EGLint *attr_list)
2010 {
2011 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2012 EGLint format, name, pitch;
2013 _EGLImageAttribs attrs;
2014 __DRIimage *dri_image;
2015
2016 name = (EGLint) (uintptr_t) buffer;
2017
2018 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2019 return NULL;
2020
2021 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2022 attrs.DRMBufferStrideMESA <= 0) {
2023 _eglError(EGL_BAD_PARAMETER,
2024 "bad width, height or stride");
2025 return NULL;
2026 }
2027
2028 switch (attrs.DRMBufferFormatMESA) {
2029 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2030 format = __DRI_IMAGE_FORMAT_ARGB8888;
2031 pitch = attrs.DRMBufferStrideMESA;
2032 break;
2033 default:
2034 _eglError(EGL_BAD_PARAMETER,
2035 "dri2_create_image_khr: unsupported pixmap depth");
2036 return NULL;
2037 }
2038
2039 dri_image =
2040 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2041 attrs.Width,
2042 attrs.Height,
2043 format,
2044 name,
2045 pitch,
2046 NULL);
2047
2048 return dri2_create_image_from_dri(disp, dri_image);
2049 }
2050
2051 static EGLBoolean
2052 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2053 {
2054 /**
2055 * The spec says:
2056 *
2057 * "Required attributes and their values are as follows:
2058 *
2059 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2060 *
2061 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2062 * by drm_fourcc.h and used as the pixel_format parameter of the
2063 * drm_mode_fb_cmd2 ioctl."
2064 *
2065 * and
2066 *
2067 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2068 * incomplete, EGL_BAD_PARAMETER is generated."
2069 */
2070 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2071 !attrs->DMABufFourCC.IsPresent)
2072 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2073
2074 /**
2075 * Also:
2076 *
2077 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2078 * specified for a plane's pitch or offset isn't supported by EGL,
2079 * EGL_BAD_ACCESS is generated."
2080 */
2081 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2082 if (attrs->DMABufPlanePitches[i].IsPresent &&
2083 attrs->DMABufPlanePitches[i].Value <= 0)
2084 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2085 }
2086
2087 /**
2088 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2089 * attribute values may be given.
2090 *
2091 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2092 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2093 */
2094 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2095 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2096 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2097 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2098 }
2099
2100 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2101 * mandate it, we only accept the same modifier across all planes. */
2102 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2103 if (attrs->DMABufPlaneFds[i].IsPresent) {
2104 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2105 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2106 (attrs->DMABufPlaneModifiersLo[0].Value !=
2107 attrs->DMABufPlaneModifiersLo[i].Value) ||
2108 (attrs->DMABufPlaneModifiersHi[0].Value !=
2109 attrs->DMABufPlaneModifiersHi[i].Value))
2110 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2111 }
2112 }
2113
2114 return EGL_TRUE;
2115 }
2116
2117 /* Returns the total number of file descriptors. Zero indicates an error. */
2118 static unsigned
2119 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2120 {
2121 unsigned plane_n;
2122
2123 switch (attrs->DMABufFourCC.Value) {
2124 case DRM_FORMAT_R8:
2125 case DRM_FORMAT_RG88:
2126 case DRM_FORMAT_GR88:
2127 case DRM_FORMAT_R16:
2128 case DRM_FORMAT_GR1616:
2129 case DRM_FORMAT_RGB332:
2130 case DRM_FORMAT_BGR233:
2131 case DRM_FORMAT_XRGB4444:
2132 case DRM_FORMAT_XBGR4444:
2133 case DRM_FORMAT_RGBX4444:
2134 case DRM_FORMAT_BGRX4444:
2135 case DRM_FORMAT_ARGB4444:
2136 case DRM_FORMAT_ABGR4444:
2137 case DRM_FORMAT_RGBA4444:
2138 case DRM_FORMAT_BGRA4444:
2139 case DRM_FORMAT_XRGB1555:
2140 case DRM_FORMAT_XBGR1555:
2141 case DRM_FORMAT_RGBX5551:
2142 case DRM_FORMAT_BGRX5551:
2143 case DRM_FORMAT_ARGB1555:
2144 case DRM_FORMAT_ABGR1555:
2145 case DRM_FORMAT_RGBA5551:
2146 case DRM_FORMAT_BGRA5551:
2147 case DRM_FORMAT_RGB565:
2148 case DRM_FORMAT_BGR565:
2149 case DRM_FORMAT_RGB888:
2150 case DRM_FORMAT_BGR888:
2151 case DRM_FORMAT_XRGB8888:
2152 case DRM_FORMAT_XBGR8888:
2153 case DRM_FORMAT_RGBX8888:
2154 case DRM_FORMAT_BGRX8888:
2155 case DRM_FORMAT_ARGB8888:
2156 case DRM_FORMAT_ABGR8888:
2157 case DRM_FORMAT_RGBA8888:
2158 case DRM_FORMAT_BGRA8888:
2159 case DRM_FORMAT_XRGB2101010:
2160 case DRM_FORMAT_XBGR2101010:
2161 case DRM_FORMAT_RGBX1010102:
2162 case DRM_FORMAT_BGRX1010102:
2163 case DRM_FORMAT_ARGB2101010:
2164 case DRM_FORMAT_ABGR2101010:
2165 case DRM_FORMAT_RGBA1010102:
2166 case DRM_FORMAT_BGRA1010102:
2167 case DRM_FORMAT_YUYV:
2168 case DRM_FORMAT_YVYU:
2169 case DRM_FORMAT_UYVY:
2170 case DRM_FORMAT_VYUY:
2171 plane_n = 1;
2172 break;
2173 case DRM_FORMAT_NV12:
2174 case DRM_FORMAT_NV21:
2175 case DRM_FORMAT_NV16:
2176 case DRM_FORMAT_NV61:
2177 plane_n = 2;
2178 break;
2179 case DRM_FORMAT_YUV410:
2180 case DRM_FORMAT_YVU410:
2181 case DRM_FORMAT_YUV411:
2182 case DRM_FORMAT_YVU411:
2183 case DRM_FORMAT_YUV420:
2184 case DRM_FORMAT_YVU420:
2185 case DRM_FORMAT_YUV422:
2186 case DRM_FORMAT_YVU422:
2187 case DRM_FORMAT_YUV444:
2188 case DRM_FORMAT_YVU444:
2189 plane_n = 3;
2190 break;
2191 default:
2192 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2193 return 0;
2194 }
2195
2196 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2197 /**
2198 * The modifiers extension spec says:
2199 *
2200 * "Modifiers may modify any attribute of a buffer import, including
2201 * but not limited to adding extra planes to a format which
2202 * otherwise does not have those planes. As an example, a modifier
2203 * may add a plane for an external compression buffer to a
2204 * single-plane format. The exact meaning and effect of any
2205 * modifier is canonically defined by drm_fourcc.h, not as part of
2206 * this extension."
2207 */
2208 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2209 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2210 plane_n = i + 1;
2211 }
2212 }
2213
2214 /**
2215 * The spec says:
2216 *
2217 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2218 * incomplete, EGL_BAD_PARAMETER is generated."
2219 */
2220 for (unsigned i = 0; i < plane_n; ++i) {
2221 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2222 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2223 !attrs->DMABufPlanePitches[i].IsPresent) {
2224 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2225 return 0;
2226 }
2227 }
2228
2229 /**
2230 * The spec also says:
2231 *
2232 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2233 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2234 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2235 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2236 */
2237 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2238 if (attrs->DMABufPlaneFds[i].IsPresent ||
2239 attrs->DMABufPlaneOffsets[i].IsPresent ||
2240 attrs->DMABufPlanePitches[i].IsPresent) {
2241 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2242 return 0;
2243 }
2244 }
2245
2246 return plane_n;
2247 }
2248
2249 static EGLBoolean
2250 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2251 EGLint max, EGLint *formats, EGLint *count)
2252 {
2253 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2254 if (max < 0 || (max > 0 && formats == NULL))
2255 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2256
2257 if (dri2_dpy->image->base.version < 15 ||
2258 dri2_dpy->image->queryDmaBufFormats == NULL)
2259 return EGL_FALSE;
2260
2261 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2262 formats, count))
2263 return EGL_FALSE;
2264
2265 return EGL_TRUE;
2266 }
2267
2268 static EGLBoolean
2269 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2270 EGLint max, EGLuint64KHR *modifiers,
2271 EGLBoolean *external_only, EGLint *count)
2272 {
2273 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2274
2275 if (max < 0)
2276 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2277
2278 if (max > 0 && modifiers == NULL)
2279 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2280
2281 if (dri2_dpy->image->base.version < 15 ||
2282 dri2_dpy->image->queryDmaBufModifiers == NULL)
2283 return EGL_FALSE;
2284
2285 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2286 max, modifiers,
2287 (unsigned int *) external_only,
2288 count) == false)
2289 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2290
2291 return EGL_TRUE;
2292 }
2293
2294 /**
2295 * The spec says:
2296 *
2297 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2298 * EGL will take a reference to the dma_buf(s) which it will release at any
2299 * time while the EGLDisplay is initialized. It is the responsibility of the
2300 * application to close the dma_buf file descriptors."
2301 *
2302 * Therefore we must never close or otherwise modify the file descriptors.
2303 */
2304 _EGLImage *
2305 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2306 EGLClientBuffer buffer, const EGLint *attr_list)
2307 {
2308 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2309 _EGLImage *res;
2310 _EGLImageAttribs attrs;
2311 __DRIimage *dri_image;
2312 unsigned num_fds;
2313 int fds[DMA_BUF_MAX_PLANES];
2314 int pitches[DMA_BUF_MAX_PLANES];
2315 int offsets[DMA_BUF_MAX_PLANES];
2316 uint64_t modifier;
2317 bool has_modifier = false;
2318 unsigned error;
2319
2320 /**
2321 * The spec says:
2322 *
2323 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2324 * error EGL_BAD_PARAMETER is generated."
2325 */
2326 if (buffer != NULL) {
2327 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2328 return NULL;
2329 }
2330
2331 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2332 return NULL;
2333
2334 if (!dri2_check_dma_buf_attribs(&attrs))
2335 return NULL;
2336
2337 num_fds = dri2_check_dma_buf_format(&attrs);
2338 if (!num_fds)
2339 return NULL;
2340
2341 for (unsigned i = 0; i < num_fds; ++i) {
2342 fds[i] = attrs.DMABufPlaneFds[i].Value;
2343 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2344 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2345 }
2346
2347 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2348 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2349 * attrs.DMABufPlaneModifiersHi[0] */
2350 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2351 modifier = (uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32;
2352 modifier |= (uint64_t) (attrs.DMABufPlaneModifiersLo[0].Value & 0xffffffff);
2353 has_modifier = true;
2354 }
2355
2356 if (has_modifier) {
2357 if (dri2_dpy->image->base.version < 15 ||
2358 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2359 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2360 return EGL_NO_IMAGE_KHR;
2361 }
2362 dri_image =
2363 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2364 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2365 modifier, fds, num_fds, pitches, offsets,
2366 attrs.DMABufYuvColorSpaceHint.Value,
2367 attrs.DMABufSampleRangeHint.Value,
2368 attrs.DMABufChromaHorizontalSiting.Value,
2369 attrs.DMABufChromaVerticalSiting.Value,
2370 &error,
2371 NULL);
2372 }
2373 else {
2374 dri_image =
2375 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2376 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2377 fds, num_fds, pitches, offsets,
2378 attrs.DMABufYuvColorSpaceHint.Value,
2379 attrs.DMABufSampleRangeHint.Value,
2380 attrs.DMABufChromaHorizontalSiting.Value,
2381 attrs.DMABufChromaVerticalSiting.Value,
2382 &error,
2383 NULL);
2384 }
2385 dri2_create_image_khr_texture_error(error);
2386
2387 if (!dri_image)
2388 return EGL_NO_IMAGE_KHR;
2389
2390 res = dri2_create_image_from_dri(disp, dri_image);
2391
2392 return res;
2393 }
2394 static _EGLImage *
2395 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2396 const EGLint *attr_list)
2397 {
2398 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2399 struct dri2_egl_image *dri2_img;
2400 _EGLImageAttribs attrs;
2401 unsigned int dri_use, valid_mask;
2402 int format;
2403
2404 (void) drv;
2405
2406 if (!attr_list) {
2407 _eglError(EGL_BAD_PARAMETER, __func__);
2408 return EGL_NO_IMAGE_KHR;
2409 }
2410
2411 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2412 return EGL_NO_IMAGE_KHR;
2413
2414 if (attrs.Width <= 0 || attrs.Height <= 0) {
2415 _eglError(EGL_BAD_PARAMETER, __func__);
2416 return EGL_NO_IMAGE_KHR;
2417 }
2418
2419 switch (attrs.DRMBufferFormatMESA) {
2420 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2421 format = __DRI_IMAGE_FORMAT_ARGB8888;
2422 break;
2423 default:
2424 _eglError(EGL_BAD_PARAMETER, __func__);
2425 return EGL_NO_IMAGE_KHR;
2426 }
2427
2428 valid_mask =
2429 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2430 EGL_DRM_BUFFER_USE_SHARE_MESA |
2431 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2432 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2433 _eglError(EGL_BAD_PARAMETER, __func__);
2434 return EGL_NO_IMAGE_KHR;
2435 }
2436
2437 dri_use = 0;
2438 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2439 dri_use |= __DRI_IMAGE_USE_SHARE;
2440 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2441 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2442 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2443 dri_use |= __DRI_IMAGE_USE_CURSOR;
2444
2445 dri2_img = malloc(sizeof *dri2_img);
2446 if (!dri2_img) {
2447 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2448 return EGL_NO_IMAGE_KHR;
2449 }
2450
2451 _eglInitImage(&dri2_img->base, disp);
2452
2453 dri2_img->dri_image =
2454 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2455 attrs.Width, attrs.Height,
2456 format, dri_use, dri2_img);
2457 if (dri2_img->dri_image == NULL) {
2458 free(dri2_img);
2459 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2460 return EGL_NO_IMAGE_KHR;
2461 }
2462
2463 return &dri2_img->base;
2464 }
2465
2466 static EGLBoolean
2467 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2468 EGLint *name, EGLint *handle, EGLint *stride)
2469 {
2470 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2471 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2472
2473 (void) drv;
2474
2475 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2476 __DRI_IMAGE_ATTRIB_NAME, name))
2477 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2478
2479 if (handle)
2480 dri2_dpy->image->queryImage(dri2_img->dri_image,
2481 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2482
2483 if (stride)
2484 dri2_dpy->image->queryImage(dri2_img->dri_image,
2485 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2486
2487 return EGL_TRUE;
2488 }
2489
2490 static EGLBoolean
2491 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2492 _EGLImage *img,
2493 EGLint *fourcc, EGLint *nplanes,
2494 EGLuint64KHR *modifiers)
2495 {
2496 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2497 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2498
2499 (void) drv;
2500
2501
2502 if (nplanes)
2503 dri2_dpy->image->queryImage(dri2_img->dri_image,
2504 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2505 if (fourcc)
2506 dri2_dpy->image->queryImage(dri2_img->dri_image,
2507 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2508
2509 if (modifiers)
2510 *modifiers = 0;
2511
2512 return EGL_TRUE;
2513 }
2514
2515 static EGLBoolean
2516 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2517 int *fds, EGLint *strides, EGLint *offsets)
2518 {
2519 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2520 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2521
2522 (void) drv;
2523
2524 /* rework later to provide multiple fds/strides/offsets */
2525 if (fds)
2526 dri2_dpy->image->queryImage(dri2_img->dri_image,
2527 __DRI_IMAGE_ATTRIB_FD, fds);
2528
2529 if (strides)
2530 dri2_dpy->image->queryImage(dri2_img->dri_image,
2531 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2532
2533 if (offsets) {
2534 int img_offset;
2535 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2536 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2537 if (ret)
2538 offsets[0] = img_offset;
2539 else
2540 offsets[0] = 0;
2541 }
2542
2543 return EGL_TRUE;
2544 }
2545
2546 #endif
2547
2548 _EGLImage *
2549 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2550 _EGLContext *ctx, EGLenum target,
2551 EGLClientBuffer buffer, const EGLint *attr_list)
2552 {
2553 (void) drv;
2554
2555 switch (target) {
2556 case EGL_GL_TEXTURE_2D_KHR:
2557 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2558 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2559 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2560 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2561 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2562 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2563 case EGL_GL_TEXTURE_3D_KHR:
2564 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2565 case EGL_GL_RENDERBUFFER_KHR:
2566 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2567 #ifdef HAVE_LIBDRM
2568 case EGL_DRM_BUFFER_MESA:
2569 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2570 case EGL_LINUX_DMA_BUF_EXT:
2571 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2572 #endif
2573 #ifdef HAVE_WAYLAND_PLATFORM
2574 case EGL_WAYLAND_BUFFER_WL:
2575 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2576 #endif
2577 default:
2578 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2579 return EGL_NO_IMAGE_KHR;
2580 }
2581 }
2582
2583 static EGLBoolean
2584 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2585 {
2586 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2587 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2588
2589 (void) drv;
2590
2591 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2592 free(dri2_img);
2593
2594 return EGL_TRUE;
2595 }
2596
2597 #ifdef HAVE_WAYLAND_PLATFORM
2598
2599 static void
2600 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2601 struct wl_drm_buffer *buffer)
2602 {
2603 _EGLDisplay *disp = user_data;
2604 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2605 __DRIimage *img;
2606 int dri_components = 0;
2607
2608 if (fd == -1)
2609 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2610 buffer->width,
2611 buffer->height,
2612 buffer->format,
2613 (int*)&name, 1,
2614 buffer->stride,
2615 buffer->offset,
2616 NULL);
2617 else
2618 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2619 buffer->width,
2620 buffer->height,
2621 buffer->format,
2622 &fd, 1,
2623 buffer->stride,
2624 buffer->offset,
2625 NULL);
2626
2627 if (img == NULL)
2628 return;
2629
2630 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2631
2632 buffer->driver_format = NULL;
2633 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2634 if (wl_drm_components[i].dri_components == dri_components)
2635 buffer->driver_format = &wl_drm_components[i];
2636
2637 if (buffer->driver_format == NULL)
2638 dri2_dpy->image->destroyImage(img);
2639 else
2640 buffer->driver_buffer = img;
2641 }
2642
2643 static void
2644 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2645 {
2646 _EGLDisplay *disp = user_data;
2647 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2648
2649 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2650 }
2651
2652 static struct wayland_drm_callbacks wl_drm_callbacks = {
2653 .authenticate = NULL,
2654 .reference_buffer = dri2_wl_reference_buffer,
2655 .release_buffer = dri2_wl_release_buffer
2656 };
2657
2658 static EGLBoolean
2659 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2660 struct wl_display *wl_dpy)
2661 {
2662 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2663 int flags = 0;
2664 uint64_t cap;
2665
2666 (void) drv;
2667
2668 if (dri2_dpy->wl_server_drm)
2669 return EGL_FALSE;
2670
2671 wl_drm_callbacks.authenticate =
2672 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2673
2674 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2675 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2676 dri2_dpy->image->base.version >= 7 &&
2677 dri2_dpy->image->createImageFromFds != NULL)
2678 flags |= WAYLAND_DRM_PRIME;
2679
2680 dri2_dpy->wl_server_drm =
2681 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2682 &wl_drm_callbacks, disp, flags);
2683
2684 if (!dri2_dpy->wl_server_drm)
2685 return EGL_FALSE;
2686
2687 #ifdef HAVE_DRM_PLATFORM
2688 /* We have to share the wl_drm instance with gbm, so gbm can convert
2689 * wl_buffers to gbm bos. */
2690 if (dri2_dpy->gbm_dri)
2691 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2692 #endif
2693
2694 return EGL_TRUE;
2695 }
2696
2697 static EGLBoolean
2698 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2699 struct wl_display *wl_dpy)
2700 {
2701 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2702
2703 (void) drv;
2704
2705 if (!dri2_dpy->wl_server_drm)
2706 return EGL_FALSE;
2707
2708 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2709 dri2_dpy->wl_server_drm = NULL;
2710
2711 return EGL_TRUE;
2712 }
2713
2714 static EGLBoolean
2715 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2716 struct wl_resource *buffer_resource,
2717 EGLint attribute, EGLint *value)
2718 {
2719 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2720 struct wl_drm_buffer *buffer;
2721 const struct wl_drm_components_descriptor *format;
2722
2723 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2724 if (!buffer)
2725 return EGL_FALSE;
2726
2727 format = buffer->driver_format;
2728 switch (attribute) {
2729 case EGL_TEXTURE_FORMAT:
2730 *value = format->components;
2731 return EGL_TRUE;
2732 case EGL_WIDTH:
2733 *value = buffer->width;
2734 return EGL_TRUE;
2735 case EGL_HEIGHT:
2736 *value = buffer->height;
2737 return EGL_TRUE;
2738 }
2739
2740 return EGL_FALSE;
2741 }
2742 #endif
2743
2744 static void
2745 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2746 {
2747 p_atomic_inc(&sync->refcount);
2748 }
2749
2750 static void
2751 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2752 struct dri2_egl_sync *dri2_sync)
2753 {
2754 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2755 switch (dri2_sync->base.Type) {
2756 case EGL_SYNC_REUSABLE_KHR:
2757 cnd_destroy(&dri2_sync->cond);
2758 break;
2759 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2760 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2761 close(dri2_sync->base.SyncFd);
2762 break;
2763 default:
2764 break;
2765 }
2766
2767 if (dri2_sync->fence)
2768 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2769
2770 free(dri2_sync);
2771 }
2772 }
2773
2774 static _EGLSync *
2775 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2776 EGLenum type, const EGLAttrib *attrib_list)
2777 {
2778 _EGLContext *ctx = _eglGetCurrentContext();
2779 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2780 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2781 struct dri2_egl_sync *dri2_sync;
2782 EGLint ret;
2783 pthread_condattr_t attr;
2784
2785 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2786 if (!dri2_sync) {
2787 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2788 return NULL;
2789 }
2790
2791 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2792 free(dri2_sync);
2793 return NULL;
2794 }
2795
2796 switch (type) {
2797 case EGL_SYNC_FENCE_KHR:
2798 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2799 if (!dri2_sync->fence) {
2800 /* Why did it fail? DRI doesn't return an error code, so we emit
2801 * a generic EGL error that doesn't communicate user error.
2802 */
2803 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2804 free(dri2_sync);
2805 return NULL;
2806 }
2807 break;
2808
2809 case EGL_SYNC_CL_EVENT_KHR:
2810 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2811 dri2_dpy->dri_screen,
2812 dri2_sync->base.CLEvent);
2813 /* this can only happen if the cl_event passed in is invalid. */
2814 if (!dri2_sync->fence) {
2815 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2816 free(dri2_sync);
2817 return NULL;
2818 }
2819
2820 /* the initial status must be "signaled" if the cl_event is signaled */
2821 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2822 dri2_sync->fence, 0, 0))
2823 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2824 break;
2825
2826 case EGL_SYNC_REUSABLE_KHR:
2827 /* intialize attr */
2828 ret = pthread_condattr_init(&attr);
2829
2830 if (ret) {
2831 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2832 free(dri2_sync);
2833 return NULL;
2834 }
2835
2836 /* change clock attribute to CLOCK_MONOTONIC */
2837 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2838
2839 if (ret) {
2840 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2841 free(dri2_sync);
2842 return NULL;
2843 }
2844
2845 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2846
2847 if (ret) {
2848 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2849 free(dri2_sync);
2850 return NULL;
2851 }
2852
2853 /* initial status of reusable sync must be "unsignaled" */
2854 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2855 break;
2856
2857 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2858 if (dri2_dpy->fence->create_fence_fd) {
2859 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2860 dri2_ctx->dri_context,
2861 dri2_sync->base.SyncFd);
2862 }
2863 if (!dri2_sync->fence) {
2864 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2865 free(dri2_sync);
2866 return NULL;
2867 }
2868 break;
2869 }
2870
2871 p_atomic_set(&dri2_sync->refcount, 1);
2872 return &dri2_sync->base;
2873 }
2874
2875 static EGLBoolean
2876 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2877 {
2878 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2879 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2880 EGLint ret = EGL_TRUE;
2881 EGLint err;
2882
2883 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2884 * then unlock all threads possibly blocked by the reusable sync before
2885 * destroying it.
2886 */
2887 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2888 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2889 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2890 /* unblock all threads currently blocked by sync */
2891 err = cnd_broadcast(&dri2_sync->cond);
2892
2893 if (err) {
2894 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2895 ret = EGL_FALSE;
2896 }
2897 }
2898
2899 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2900
2901 return ret;
2902 }
2903
2904 static EGLint
2905 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2906 {
2907 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2908 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2909
2910 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2911
2912 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2913 /* try to retrieve the actual native fence fd.. if rendering is
2914 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2915 */
2916 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2917 dri2_sync->fence);
2918 }
2919
2920 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2921 /* if native fence fd still not created, return an error: */
2922 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2923 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2924 }
2925
2926 return dup(sync->SyncFd);
2927 }
2928
2929 static EGLint
2930 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2931 EGLint flags, EGLTime timeout)
2932 {
2933 _EGLContext *ctx = _eglGetCurrentContext();
2934 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2935 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2936 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2937 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2938 unsigned wait_flags = 0;
2939
2940 /* timespecs for cnd_timedwait */
2941 struct timespec current;
2942 xtime expire;
2943
2944 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2945
2946 /* The EGL_KHR_fence_sync spec states:
2947 *
2948 * "If no context is current for the bound API,
2949 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2950 */
2951 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2952 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2953
2954 /* the sync object should take a reference while waiting */
2955 dri2_egl_ref_sync(dri2_sync);
2956
2957 switch (sync->Type) {
2958 case EGL_SYNC_FENCE_KHR:
2959 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2960 case EGL_SYNC_CL_EVENT_KHR:
2961 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2962 dri2_sync->fence, wait_flags,
2963 timeout))
2964 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2965 else
2966 ret = EGL_TIMEOUT_EXPIRED_KHR;
2967 break;
2968
2969 case EGL_SYNC_REUSABLE_KHR:
2970 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2971 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2972 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2973 dri2_drv->glFlush();
2974 }
2975
2976 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2977 if (timeout == EGL_FOREVER_KHR) {
2978 mtx_lock(&dri2_sync->mutex);
2979 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2980 mtx_unlock(&dri2_sync->mutex);
2981 } else {
2982 /* if reusable sync has not been yet signaled */
2983 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2984 clock_gettime(CLOCK_MONOTONIC, &current);
2985
2986 /* calculating when to expire */
2987 expire.nsec = timeout % 1000000000L;
2988 expire.sec = timeout / 1000000000L;
2989
2990 expire.nsec += current.tv_nsec;
2991 expire.sec += current.tv_sec;
2992
2993 /* expire.nsec now is a number between 0 and 1999999998 */
2994 if (expire.nsec > 999999999L) {
2995 expire.sec++;
2996 expire.nsec -= 1000000000L;
2997 }
2998
2999 mtx_lock(&dri2_sync->mutex);
3000 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3001 mtx_unlock(&dri2_sync->mutex);
3002
3003 if (ret == thrd_busy) {
3004 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3005 ret = EGL_TIMEOUT_EXPIRED_KHR;
3006 } else {
3007 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3008 ret = EGL_FALSE;
3009 }
3010 }
3011 }
3012 }
3013 break;
3014 }
3015 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3016
3017 return ret;
3018 }
3019
3020 static EGLBoolean
3021 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
3022 EGLenum mode)
3023 {
3024 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3025 EGLint ret;
3026
3027 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3028 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3029
3030 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3031 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3032
3033 dri2_sync->base.SyncStatus = mode;
3034
3035 if (mode == EGL_SIGNALED_KHR) {
3036 ret = cnd_broadcast(&dri2_sync->cond);
3037
3038 /* fail to broadcast */
3039 if (ret)
3040 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3041 }
3042
3043 return EGL_TRUE;
3044 }
3045
3046 static EGLint
3047 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
3048 {
3049 _EGLContext *ctx = _eglGetCurrentContext();
3050 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3051 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3052 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3053
3054 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3055 dri2_sync->fence, 0);
3056 return EGL_TRUE;
3057 }
3058
3059 static int
3060 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
3061 struct mesa_glinterop_device_info *out)
3062 {
3063 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3064 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3065
3066 if (!dri2_dpy->interop)
3067 return MESA_GLINTEROP_UNSUPPORTED;
3068
3069 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3070 }
3071
3072 static int
3073 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
3074 struct mesa_glinterop_export_in *in,
3075 struct mesa_glinterop_export_out *out)
3076 {
3077 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3078 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3079
3080 if (!dri2_dpy->interop)
3081 return MESA_GLINTEROP_UNSUPPORTED;
3082
3083 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3084 }
3085
3086 static void
3087 dri2_unload(_EGLDriver *drv)
3088 {
3089 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3090
3091 dlclose(dri2_drv->handle);
3092 free(dri2_drv);
3093 }
3094
3095 static EGLBoolean
3096 dri2_load(_EGLDriver *drv)
3097 {
3098 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3099 #ifdef HAVE_ANDROID_PLATFORM
3100 const char *libname = "libglapi.so";
3101 #elif defined(__APPLE__)
3102 const char *libname = "libglapi.0.dylib";
3103 #elif defined(__CYGWIN__)
3104 const char *libname = "cygglapi-0.dll";
3105 #else
3106 const char *libname = "libglapi.so.0";
3107 #endif
3108 void *handle;
3109
3110 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
3111 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
3112 if (!handle) {
3113 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
3114 goto no_handle;
3115 }
3116
3117 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
3118 dlsym(handle, "_glapi_get_proc_address");
3119
3120 /* if glapi is not available, loading DRI drivers will fail */
3121 if (!dri2_drv->get_proc_address) {
3122 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
3123 goto no_symbol;
3124 }
3125
3126 dri2_drv->glFlush = (void (*)(void))
3127 dri2_drv->get_proc_address("glFlush");
3128
3129 /* if glFlush is not available things are horribly broken */
3130 if (!dri2_drv->glFlush) {
3131 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
3132 goto no_symbol;
3133 }
3134
3135 dri2_drv->handle = handle;
3136 return EGL_TRUE;
3137
3138 no_symbol:
3139 dlclose(handle);
3140 no_handle:
3141 return EGL_FALSE;
3142 }
3143
3144 /**
3145 * This is the main entrypoint into the driver, called by libEGL.
3146 * Create a new _EGLDriver object and init its dispatch table.
3147 */
3148 _EGLDriver *
3149 _eglBuiltInDriverDRI2(const char *args)
3150 {
3151 struct dri2_egl_driver *dri2_drv;
3152
3153 (void) args;
3154
3155 dri2_drv = calloc(1, sizeof *dri2_drv);
3156 if (!dri2_drv)
3157 return NULL;
3158
3159 if (!dri2_load(&dri2_drv->base)) {
3160 free(dri2_drv);
3161 return NULL;
3162 }
3163
3164 _eglInitDriverFallbacks(&dri2_drv->base);
3165 dri2_drv->base.API.Initialize = dri2_initialize;
3166 dri2_drv->base.API.Terminate = dri2_terminate;
3167 dri2_drv->base.API.CreateContext = dri2_create_context;
3168 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
3169 dri2_drv->base.API.MakeCurrent = dri2_make_current;
3170 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
3171 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
3172 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3173 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
3174 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
3175 dri2_drv->base.API.WaitClient = dri2_wait_client;
3176 dri2_drv->base.API.WaitNative = dri2_wait_native;
3177 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
3178 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
3179 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
3180 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
3181 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3182 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3183 dri2_drv->base.API.SetDamageRegion = dri2_set_damage_region;
3184 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
3185 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
3186 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
3187 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
3188 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
3189 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3190 dri2_drv->base.API.QuerySurface = dri2_query_surface;
3191 #ifdef HAVE_LIBDRM
3192 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3193 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3194 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3195 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3196 dri2_drv->base.API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3197 dri2_drv->base.API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3198 #endif
3199 #ifdef HAVE_WAYLAND_PLATFORM
3200 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3201 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3202 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3203 #endif
3204 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3205 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
3206 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
3207 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
3208 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
3209 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
3210 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3211 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
3212 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3213
3214 dri2_drv->base.Name = "DRI2";
3215 dri2_drv->base.Unload = dri2_unload;
3216
3217 return &dri2_drv->base;
3218 }