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loader_dri3/glx/egl: Optionally use a blit context for blitting operations
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include "GL/mesa_glinterop.h"
50 #include <sys/types.h>
51 #include <sys/stat.h>
52
53 #ifdef HAVE_WAYLAND_PLATFORM
54 #include "wayland-drm.h"
55 #include "wayland-drm-client-protocol.h"
56 #include "linux-dmabuf-unstable-v1-client-protocol.h"
57 #endif
58
59 #ifdef HAVE_X11_PLATFORM
60 #include "X11/Xlibint.h"
61 #endif
62
63 #include "egl_dri2.h"
64 #include "loader/loader.h"
65 #include "util/u_atomic.h"
66 #include "util/u_vector.h"
67
68 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
69 * some of the definitions here so that building Mesa won't bleeding-edge
70 * kernel headers.
71 */
72 #ifndef DRM_FORMAT_R8
73 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
74 #endif
75
76 #ifndef DRM_FORMAT_RG88
77 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
78 #endif
79
80 #ifndef DRM_FORMAT_GR88
81 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
82 #endif
83
84 #ifndef DRM_FORMAT_R16
85 #define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R 16 little endian */
86 #endif
87
88 #ifndef DRM_FORMAT_GR1616
89 #define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] R:G 16:16 little endian */
90 #endif
91
92 #ifndef DRM_FORMAT_MOD_INVALID
93 #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
94 #endif
95
96 static void
97 dri_set_background_context(void *loaderPrivate)
98 {
99 _EGLContext *ctx = _eglGetCurrentContext();
100 _EGLThreadInfo *t = _eglGetCurrentThread();
101
102 _eglBindContextToThread(ctx, t);
103 }
104
105 static GLboolean
106 dri_is_thread_safe(void *loaderPrivate)
107 {
108 struct dri2_egl_surface *dri2_surf = loaderPrivate;
109 _EGLDisplay *display = dri2_surf->base.Resource.Display;
110
111 #ifdef HAVE_X11_PLATFORM
112 Display *xdpy = (Display*)display->PlatformDisplay;
113
114 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
115 * platform
116 *
117 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
118 * It wll be NULL if XInitThreads wasn't called.
119 */
120 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
121 return false;
122 #endif
123
124 #ifdef HAVE_WAYLAND_PLATFORM
125 if (display->Platform == _EGL_PLATFORM_WAYLAND)
126 return true;
127 #endif
128
129 return true;
130 }
131
132 const __DRIbackgroundCallableExtension background_callable_extension = {
133 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
134
135 .setBackgroundContext = dri_set_background_context,
136 .isThreadSafe = dri_is_thread_safe,
137 };
138
139 const __DRIuseInvalidateExtension use_invalidate = {
140 .base = { __DRI_USE_INVALIDATE, 1 }
141 };
142
143 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
144 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
145 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
146 [__DRI_ATTRIB_RED_SIZE] = EGL_RED_SIZE,
147 [__DRI_ATTRIB_GREEN_SIZE] = EGL_GREEN_SIZE,
148 [__DRI_ATTRIB_BLUE_SIZE] = EGL_BLUE_SIZE,
149 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
150 [__DRI_ATTRIB_ALPHA_SIZE] = EGL_ALPHA_SIZE,
151 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
152 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
153 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
154 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
155 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
156 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
157 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
158 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
159 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
160 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
161 };
162
163 const __DRIconfig *
164 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
165 EGLenum colorspace)
166 {
167 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
168 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
169
170 return conf->dri_config[double_buffer][srgb];
171 }
172
173 static EGLBoolean
174 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
175 {
176 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
177 return EGL_FALSE;
178
179 if (!_eglMatchConfig(conf, criteria))
180 return EGL_FALSE;
181
182 return EGL_TRUE;
183 }
184
185 struct dri2_egl_config *
186 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
187 EGLint surface_type, const EGLint *attr_list,
188 const unsigned int *rgba_masks)
189 {
190 struct dri2_egl_config *conf;
191 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
192 _EGLConfig base;
193 unsigned int attrib, value, double_buffer;
194 bool srgb = false;
195 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
196 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
197 _EGLConfig *matching_config;
198 EGLint num_configs = 0;
199 EGLint config_id;
200
201 _eglInitConfig(&base, disp, id);
202
203 double_buffer = 0;
204 bind_to_texture_rgb = 0;
205 bind_to_texture_rgba = 0;
206
207 for (int i = 0; dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib,
208 &value); ++i) {
209 switch (attrib) {
210 case __DRI_ATTRIB_RENDER_TYPE:
211 if (value & __DRI_ATTRIB_RGBA_BIT)
212 value = EGL_RGB_BUFFER;
213 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
214 value = EGL_LUMINANCE_BUFFER;
215 else
216 return NULL;
217 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
218 break;
219
220 case __DRI_ATTRIB_CONFIG_CAVEAT:
221 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
222 value = EGL_NON_CONFORMANT_CONFIG;
223 else if (value & __DRI_ATTRIB_SLOW_BIT)
224 value = EGL_SLOW_CONFIG;
225 else
226 value = EGL_NONE;
227 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
228 break;
229
230 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
231 bind_to_texture_rgb = value;
232 break;
233
234 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
235 bind_to_texture_rgba = value;
236 break;
237
238 case __DRI_ATTRIB_DOUBLE_BUFFER:
239 double_buffer = value;
240 break;
241
242 case __DRI_ATTRIB_RED_MASK:
243 dri_masks[0] = value;
244 break;
245
246 case __DRI_ATTRIB_GREEN_MASK:
247 dri_masks[1] = value;
248 break;
249
250 case __DRI_ATTRIB_BLUE_MASK:
251 dri_masks[2] = value;
252 break;
253
254 case __DRI_ATTRIB_ALPHA_MASK:
255 dri_masks[3] = value;
256 break;
257
258 case __DRI_ATTRIB_ACCUM_RED_SIZE:
259 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
260 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
261 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
262 /* Don't expose visuals with the accumulation buffer. */
263 if (value > 0)
264 return NULL;
265 break;
266
267 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
268 srgb = value != 0;
269 if (!disp->Extensions.KHR_gl_colorspace && srgb)
270 return NULL;
271 break;
272
273 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
274 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
275 _EGL_MAX_PBUFFER_WIDTH);
276 break;
277 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
278 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
279 _EGL_MAX_PBUFFER_HEIGHT);
280 break;
281
282 default:
283 key = dri2_to_egl_attribute_map[attrib];
284 if (key != 0)
285 _eglSetConfigKey(&base, key, value);
286 break;
287 }
288 }
289
290 if (attr_list)
291 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
292 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
293
294 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
295 return NULL;
296
297 base.NativeRenderable = EGL_TRUE;
298
299 base.SurfaceType = surface_type;
300 if (surface_type & (EGL_PBUFFER_BIT |
301 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
302 base.BindToTextureRGB = bind_to_texture_rgb;
303 if (base.AlphaSize > 0)
304 base.BindToTextureRGBA = bind_to_texture_rgba;
305 }
306
307 base.RenderableType = disp->ClientAPIs;
308 base.Conformant = disp->ClientAPIs;
309
310 base.MinSwapInterval = dri2_dpy->min_swap_interval;
311 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
312
313 if (!_eglValidateConfig(&base, EGL_FALSE)) {
314 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
315 return NULL;
316 }
317
318 config_id = base.ConfigID;
319 base.ConfigID = EGL_DONT_CARE;
320 base.SurfaceType = EGL_DONT_CARE;
321 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
322 (_EGLArrayForEach) dri2_match_config, &base);
323
324 if (num_configs == 1) {
325 conf = (struct dri2_egl_config *) matching_config;
326
327 if (!conf->dri_config[double_buffer][srgb])
328 conf->dri_config[double_buffer][srgb] = dri_config;
329 else
330 /* a similar config type is already added (unlikely) => discard */
331 return NULL;
332 }
333 else if (num_configs == 0) {
334 conf = calloc(1, sizeof *conf);
335 if (conf == NULL)
336 return NULL;
337
338 conf->dri_config[double_buffer][srgb] = dri_config;
339
340 memcpy(&conf->base, &base, sizeof base);
341 conf->base.SurfaceType = 0;
342 conf->base.ConfigID = config_id;
343
344 _eglLinkConfig(&conf->base);
345 }
346 else {
347 assert(0);
348 return NULL;
349 }
350
351 if (double_buffer) {
352 surface_type &= ~EGL_PIXMAP_BIT;
353 }
354
355 /* No support for pbuffer + MSAA for now.
356 *
357 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
358 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
359 */
360 if (base.Samples) {
361 surface_type &= ~EGL_PBUFFER_BIT;
362 }
363
364 conf->base.SurfaceType |= surface_type;
365
366 return conf;
367 }
368
369 __DRIimage *
370 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
371 {
372 _EGLDisplay *disp = data;
373 struct dri2_egl_image *dri2_img;
374 _EGLImage *img;
375
376 (void) screen;
377
378 img = _eglLookupImage(image, disp);
379 if (img == NULL) {
380 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
381 return NULL;
382 }
383
384 dri2_img = dri2_egl_image(image);
385
386 return dri2_img->dri_image;
387 }
388
389 const __DRIimageLookupExtension image_lookup_extension = {
390 .base = { __DRI_IMAGE_LOOKUP, 1 },
391
392 .lookupEGLImage = dri2_lookup_egl_image
393 };
394
395 struct dri2_extension_match {
396 const char *name;
397 int version;
398 int offset;
399 };
400
401 static const struct dri2_extension_match dri3_driver_extensions[] = {
402 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
403 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
404 { NULL, 0, 0 }
405 };
406
407 static const struct dri2_extension_match dri2_driver_extensions[] = {
408 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
409 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
410 { NULL, 0, 0 }
411 };
412
413 static const struct dri2_extension_match dri2_core_extensions[] = {
414 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
415 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
416 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
417 { NULL, 0, 0 }
418 };
419
420 static const struct dri2_extension_match swrast_driver_extensions[] = {
421 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
422 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
423 { NULL, 0, 0 }
424 };
425
426 static const struct dri2_extension_match swrast_core_extensions[] = {
427 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
428 { NULL, 0, 0 }
429 };
430
431 static const struct dri2_extension_match optional_core_extensions[] = {
432 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
433 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
434 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
435 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
436 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
437 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
438 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
439 { NULL, 0, 0 }
440 };
441
442 static EGLBoolean
443 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
444 const struct dri2_extension_match *matches,
445 const __DRIextension **extensions,
446 bool optional)
447 {
448 int ret = EGL_TRUE;
449 void *field;
450
451 for (int i = 0; extensions[i]; i++) {
452 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
453 for (int j = 0; matches[j].name; j++) {
454 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
455 extensions[i]->version >= matches[j].version) {
456 field = ((char *) dri2_dpy + matches[j].offset);
457 *(const __DRIextension **) field = extensions[i];
458 _eglLog(_EGL_INFO, "found extension %s version %d",
459 extensions[i]->name, extensions[i]->version);
460 break;
461 }
462 }
463 }
464
465 for (int j = 0; matches[j].name; j++) {
466 field = ((char *) dri2_dpy + matches[j].offset);
467 if (*(const __DRIextension **) field == NULL) {
468 if (optional) {
469 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
470 matches[j].name, matches[j].version);
471 } else {
472 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
473 matches[j].name, matches[j].version);
474 ret = EGL_FALSE;
475 }
476 }
477 }
478
479 return ret;
480 }
481
482 static const __DRIextension **
483 dri2_open_driver(_EGLDisplay *disp)
484 {
485 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
486 const __DRIextension **extensions = NULL;
487 char path[PATH_MAX], *search_paths, *next, *end;
488 char *get_extensions_name;
489 const __DRIextension **(*get_extensions)(void);
490
491 search_paths = NULL;
492 if (geteuid() == getuid()) {
493 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
494 search_paths = getenv("LIBGL_DRIVERS_PATH");
495 }
496 if (search_paths == NULL)
497 search_paths = DEFAULT_DRIVER_DIR;
498
499 dri2_dpy->driver = NULL;
500 end = search_paths + strlen(search_paths);
501 for (char *p = search_paths; p < end; p = next + 1) {
502 int len;
503 next = strchr(p, ':');
504 if (next == NULL)
505 next = end;
506
507 len = next - p;
508 #if GLX_USE_TLS
509 snprintf(path, sizeof path,
510 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
511 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
512 #endif
513 if (dri2_dpy->driver == NULL) {
514 snprintf(path, sizeof path,
515 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
516 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
517 if (dri2_dpy->driver == NULL)
518 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
519 }
520 /* not need continue to loop all paths once the driver is found */
521 if (dri2_dpy->driver != NULL)
522 break;
523 }
524
525 if (dri2_dpy->driver == NULL) {
526 _eglLog(_EGL_WARNING,
527 "DRI2: failed to open %s (search paths %s)",
528 dri2_dpy->driver_name, search_paths);
529 return NULL;
530 }
531
532 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
533
534 get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
535 if (get_extensions_name) {
536 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
537 if (get_extensions) {
538 extensions = get_extensions();
539 } else {
540 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
541 get_extensions_name, dlerror());
542 }
543 free(get_extensions_name);
544 }
545
546 if (!extensions)
547 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
548 if (extensions == NULL) {
549 _eglLog(_EGL_WARNING,
550 "DRI2: driver exports no extensions (%s)", dlerror());
551 dlclose(dri2_dpy->driver);
552 }
553
554 return extensions;
555 }
556
557 EGLBoolean
558 dri2_load_driver_dri3(_EGLDisplay *disp)
559 {
560 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
561 const __DRIextension **extensions;
562
563 extensions = dri2_open_driver(disp);
564 if (!extensions)
565 return EGL_FALSE;
566
567 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
568 dlclose(dri2_dpy->driver);
569 return EGL_FALSE;
570 }
571 dri2_dpy->driver_extensions = extensions;
572
573 return EGL_TRUE;
574 }
575
576 EGLBoolean
577 dri2_load_driver(_EGLDisplay *disp)
578 {
579 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
580 const __DRIextension **extensions;
581
582 extensions = dri2_open_driver(disp);
583 if (!extensions)
584 return EGL_FALSE;
585
586 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
587 dlclose(dri2_dpy->driver);
588 return EGL_FALSE;
589 }
590 dri2_dpy->driver_extensions = extensions;
591
592 return EGL_TRUE;
593 }
594
595 EGLBoolean
596 dri2_load_driver_swrast(_EGLDisplay *disp)
597 {
598 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
599 const __DRIextension **extensions;
600
601 extensions = dri2_open_driver(disp);
602 if (!extensions)
603 return EGL_FALSE;
604
605 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
606 dlclose(dri2_dpy->driver);
607 return EGL_FALSE;
608 }
609 dri2_dpy->driver_extensions = extensions;
610
611 return EGL_TRUE;
612 }
613
614 static unsigned
615 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
616 {
617 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
618 unsigned int value = 0;
619
620 if (!rendererQuery ||
621 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
622 return 0;
623
624 return value;
625 }
626
627 void
628 dri2_setup_screen(_EGLDisplay *disp)
629 {
630 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
631 unsigned int api_mask;
632
633 if (dri2_dpy->image_driver) {
634 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
635 } else if (dri2_dpy->dri2) {
636 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
637 } else {
638 assert(dri2_dpy->swrast);
639 api_mask = 1 << __DRI_API_OPENGL |
640 1 << __DRI_API_GLES |
641 1 << __DRI_API_GLES2 |
642 1 << __DRI_API_GLES3;
643 }
644
645 disp->ClientAPIs = 0;
646 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
647 disp->ClientAPIs |= EGL_OPENGL_BIT;
648 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
649 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
650 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
651 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
652 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
653 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
654
655 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
656 disp->Extensions.KHR_no_config_context = EGL_TRUE;
657 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
658
659 if (dri2_renderer_query_integer(dri2_dpy,
660 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
661 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
662
663 if (dri2_dpy->image_driver ||
664 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
665 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
666 disp->Extensions.KHR_create_context = EGL_TRUE;
667
668 if (dri2_dpy->robustness)
669 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
670 }
671
672 if (dri2_dpy->no_error)
673 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
674
675 if (dri2_dpy->fence) {
676 disp->Extensions.KHR_fence_sync = EGL_TRUE;
677 disp->Extensions.KHR_wait_sync = EGL_TRUE;
678 if (dri2_dpy->fence->get_fence_from_cl_event)
679 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
680 if (dri2_dpy->fence->base.version >= 2) {
681 unsigned capabilities =
682 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
683 disp->Extensions.ANDROID_native_fence_sync =
684 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
685 }
686 }
687
688 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
689
690 if (dri2_dpy->image) {
691 if (dri2_dpy->image->base.version >= 10 &&
692 dri2_dpy->image->getCapabilities != NULL) {
693 int capabilities;
694
695 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
696 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
697
698 if (dri2_dpy->image->base.version >= 11)
699 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
700 } else {
701 disp->Extensions.MESA_drm_image = EGL_TRUE;
702 if (dri2_dpy->image->base.version >= 11)
703 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
704 }
705
706 disp->Extensions.KHR_image_base = EGL_TRUE;
707 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
708 if (dri2_dpy->image->base.version >= 5 &&
709 dri2_dpy->image->createImageFromTexture) {
710 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
711 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
712
713 if (dri2_renderer_query_integer(dri2_dpy,
714 __DRI2_RENDERER_HAS_TEXTURE_3D))
715 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
716 }
717 #ifdef HAVE_LIBDRM
718 if (dri2_dpy->image->base.version >= 8 &&
719 dri2_dpy->image->createImageFromDmaBufs) {
720 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
721 }
722 if (dri2_dpy->image->base.version >= 15 &&
723 dri2_dpy->image->createImageFromDmaBufs2 &&
724 dri2_dpy->image->queryDmaBufFormats &&
725 dri2_dpy->image->queryDmaBufModifiers) {
726 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
727 }
728 #endif
729 }
730 }
731
732 void
733 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
734 {
735 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
736 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
737
738 /* Allow driconf to override applications.*/
739 if (dri2_dpy->config)
740 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
741 "vblank_mode", &vblank_mode);
742 switch (vblank_mode) {
743 case DRI_CONF_VBLANK_NEVER:
744 dri2_dpy->min_swap_interval = 0;
745 dri2_dpy->max_swap_interval = 0;
746 dri2_dpy->default_swap_interval = 0;
747 break;
748 case DRI_CONF_VBLANK_ALWAYS_SYNC:
749 dri2_dpy->min_swap_interval = 1;
750 dri2_dpy->max_swap_interval = max_swap_interval;
751 dri2_dpy->default_swap_interval = 1;
752 break;
753 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
754 dri2_dpy->min_swap_interval = 0;
755 dri2_dpy->max_swap_interval = max_swap_interval;
756 dri2_dpy->default_swap_interval = 0;
757 break;
758 default:
759 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
760 dri2_dpy->min_swap_interval = 0;
761 dri2_dpy->max_swap_interval = max_swap_interval;
762 dri2_dpy->default_swap_interval = 1;
763 break;
764 }
765 }
766
767 /* All platforms but DRM call this function to create the screen and populate
768 * the driver_configs. DRM inherits that information from its display - GBM.
769 */
770 EGLBoolean
771 dri2_create_screen(_EGLDisplay *disp)
772 {
773 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
774
775 if (dri2_dpy->image_driver) {
776 dri2_dpy->dri_screen =
777 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
778 dri2_dpy->loader_extensions,
779 dri2_dpy->driver_extensions,
780 &dri2_dpy->driver_configs,
781 disp);
782 } else if (dri2_dpy->dri2) {
783 if (dri2_dpy->dri2->base.version >= 4) {
784 dri2_dpy->dri_screen =
785 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
786 dri2_dpy->loader_extensions,
787 dri2_dpy->driver_extensions,
788 &dri2_dpy->driver_configs, disp);
789 } else {
790 dri2_dpy->dri_screen =
791 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
792 dri2_dpy->loader_extensions,
793 &dri2_dpy->driver_configs, disp);
794 }
795 } else {
796 assert(dri2_dpy->swrast);
797 if (dri2_dpy->swrast->base.version >= 4) {
798 dri2_dpy->dri_screen =
799 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
800 dri2_dpy->driver_extensions,
801 &dri2_dpy->driver_configs, disp);
802 } else {
803 dri2_dpy->dri_screen =
804 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
805 &dri2_dpy->driver_configs, disp);
806 }
807 }
808
809 if (dri2_dpy->dri_screen == NULL) {
810 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
811 return EGL_FALSE;
812 }
813
814 dri2_dpy->own_dri_screen = true;
815 return EGL_TRUE;
816 }
817
818 EGLBoolean
819 dri2_setup_extensions(_EGLDisplay *disp)
820 {
821 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
822 const struct dri2_extension_match *mandatory_core_extensions;
823 const __DRIextension **extensions;
824
825 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
826
827 if (dri2_dpy->image_driver || dri2_dpy->dri2)
828 mandatory_core_extensions = dri2_core_extensions;
829 else
830 mandatory_core_extensions = swrast_core_extensions;
831
832 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
833 return EGL_FALSE;
834
835 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
836 return EGL_TRUE;
837 }
838
839 /**
840 * Called via eglInitialize(), GLX_drv->API.Initialize().
841 *
842 * This must be guaranteed to be called exactly once, even if eglInitialize is
843 * called many times (without a eglTerminate in between).
844 */
845 static EGLBoolean
846 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
847 {
848 EGLBoolean ret = EGL_FALSE;
849 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
850
851 /* In the case where the application calls eglMakeCurrent(context1),
852 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
853 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
854 * initialized, as we need it to be able to free context1 correctly.
855 *
856 * It would probably be safest to forcibly release the display with
857 * dri2_display_release, to make sure the display is reinitialized correctly.
858 * However, the EGL spec states that we need to keep a reference to the
859 * current context (so we cannot call dri2_make_current(NULL)), and therefore
860 * we would leak context1 as we would be missing the old display connection
861 * to free it up correctly.
862 */
863 if (dri2_dpy) {
864 dri2_dpy->ref_count++;
865 return EGL_TRUE;
866 }
867
868 /* not until swrast_dri is supported */
869 if (disp->Options.UseFallback)
870 return EGL_FALSE;
871
872 /* Nothing to initialize for a test only display */
873 if (disp->Options.TestOnly)
874 return EGL_TRUE;
875
876 switch (disp->Platform) {
877 #ifdef HAVE_SURFACELESS_PLATFORM
878 case _EGL_PLATFORM_SURFACELESS:
879 ret = dri2_initialize_surfaceless(drv, disp);
880 break;
881 #endif
882 #ifdef HAVE_X11_PLATFORM
883 case _EGL_PLATFORM_X11:
884 ret = dri2_initialize_x11(drv, disp);
885 break;
886 #endif
887 #ifdef HAVE_DRM_PLATFORM
888 case _EGL_PLATFORM_DRM:
889 ret = dri2_initialize_drm(drv, disp);
890 break;
891 #endif
892 #ifdef HAVE_WAYLAND_PLATFORM
893 case _EGL_PLATFORM_WAYLAND:
894 ret = dri2_initialize_wayland(drv, disp);
895 break;
896 #endif
897 #ifdef HAVE_ANDROID_PLATFORM
898 case _EGL_PLATFORM_ANDROID:
899 ret = dri2_initialize_android(drv, disp);
900 break;
901 #endif
902 default:
903 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
904 return EGL_FALSE;
905 }
906
907 if (ret) {
908 dri2_dpy = dri2_egl_display(disp);
909
910 if (!dri2_dpy) {
911 return EGL_FALSE;
912 }
913
914 dri2_dpy->ref_count++;
915 }
916
917 return ret;
918 }
919
920 /**
921 * Decrement display reference count, and free up display if necessary.
922 */
923 static void
924 dri2_display_release(_EGLDisplay *disp)
925 {
926 struct dri2_egl_display *dri2_dpy;
927
928 if (!disp)
929 return;
930
931 dri2_dpy = dri2_egl_display(disp);
932
933 assert(dri2_dpy->ref_count > 0);
934 dri2_dpy->ref_count--;
935
936 if (dri2_dpy->ref_count > 0)
937 return;
938
939 _eglCleanupDisplay(disp);
940 dri2_display_destroy(disp);
941 }
942
943 void
944 dri2_display_destroy(_EGLDisplay *disp)
945 {
946 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
947
948 if (dri2_dpy->own_dri_screen) {
949 if (dri2_dpy->vtbl->close_screen_notify)
950 dri2_dpy->vtbl->close_screen_notify(disp);
951 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
952 }
953 if (dri2_dpy->fd >= 0)
954 close(dri2_dpy->fd);
955 if (dri2_dpy->driver)
956 dlclose(dri2_dpy->driver);
957 free(dri2_dpy->driver_name);
958
959 #ifdef HAVE_WAYLAND_PLATFORM
960 free(dri2_dpy->device_name);
961 #endif
962
963 switch (disp->Platform) {
964 #ifdef HAVE_X11_PLATFORM
965 case _EGL_PLATFORM_X11:
966 if (dri2_dpy->own_device) {
967 xcb_disconnect(dri2_dpy->conn);
968 }
969 break;
970 #endif
971 #ifdef HAVE_DRM_PLATFORM
972 case _EGL_PLATFORM_DRM:
973 if (dri2_dpy->own_device) {
974 gbm_device_destroy(&dri2_dpy->gbm_dri->base);
975 }
976 break;
977 #endif
978 #ifdef HAVE_WAYLAND_PLATFORM
979 case _EGL_PLATFORM_WAYLAND:
980 if (dri2_dpy->wl_drm)
981 wl_drm_destroy(dri2_dpy->wl_drm);
982 if (dri2_dpy->wl_dmabuf)
983 zwp_linux_dmabuf_v1_destroy(dri2_dpy->wl_dmabuf);
984 if (dri2_dpy->wl_shm)
985 wl_shm_destroy(dri2_dpy->wl_shm);
986 wl_registry_destroy(dri2_dpy->wl_registry);
987 wl_event_queue_destroy(dri2_dpy->wl_queue);
988 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
989 u_vector_finish(&dri2_dpy->wl_modifiers.argb8888);
990 u_vector_finish(&dri2_dpy->wl_modifiers.xrgb8888);
991 u_vector_finish(&dri2_dpy->wl_modifiers.rgb565);
992 if (dri2_dpy->own_device) {
993 wl_display_disconnect(dri2_dpy->wl_dpy);
994 }
995 break;
996 #endif
997 default:
998 break;
999 }
1000
1001 /* The drm platform does not create the screen/driver_configs but reuses
1002 * the ones from the gbm device. As such the gbm itself is responsible
1003 * for the cleanup.
1004 */
1005 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1006 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1007 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1008 free(dri2_dpy->driver_configs);
1009 }
1010 free(dri2_dpy);
1011 disp->DriverData = NULL;
1012 }
1013
1014 /**
1015 * Called via eglTerminate(), drv->API.Terminate().
1016 *
1017 * This must be guaranteed to be called exactly once, even if eglTerminate is
1018 * called many times (without a eglInitialize in between).
1019 */
1020 static EGLBoolean
1021 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1022 {
1023 /* Release all non-current Context/Surfaces. */
1024 _eglReleaseDisplayResources(drv, disp);
1025
1026 dri2_display_release(disp);
1027
1028 return EGL_TRUE;
1029 }
1030
1031 /**
1032 * Set the error code after a call to
1033 * dri2_egl_display::dri2::createContextAttribs.
1034 */
1035 static void
1036 dri2_create_context_attribs_error(int dri_error)
1037 {
1038 EGLint egl_error;
1039
1040 switch (dri_error) {
1041 case __DRI_CTX_ERROR_SUCCESS:
1042 return;
1043
1044 case __DRI_CTX_ERROR_NO_MEMORY:
1045 egl_error = EGL_BAD_ALLOC;
1046 break;
1047
1048 /* From the EGL_KHR_create_context spec, section "Errors":
1049 *
1050 * * If <config> does not support a client API context compatible
1051 * with the requested API major and minor version, [...] context flags,
1052 * and context reset notification behavior (for client API types where
1053 * these attributes are supported), then an EGL_BAD_MATCH error is
1054 * generated.
1055 *
1056 * * If an OpenGL ES context is requested and the values for
1057 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1058 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1059 * is not defined, than an EGL_BAD_MATCH error is generated.
1060 *
1061 * * If an OpenGL context is requested, the requested version is
1062 * greater than 3.2, and the value for attribute
1063 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1064 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1065 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1066 * one of these bits set; or if the implementation does not support
1067 * the requested profile, then an EGL_BAD_MATCH error is generated.
1068 */
1069 case __DRI_CTX_ERROR_BAD_API:
1070 case __DRI_CTX_ERROR_BAD_VERSION:
1071 case __DRI_CTX_ERROR_BAD_FLAG:
1072 egl_error = EGL_BAD_MATCH;
1073 break;
1074
1075 /* From the EGL_KHR_create_context spec, section "Errors":
1076 *
1077 * * If an attribute name or attribute value in <attrib_list> is not
1078 * recognized (including unrecognized bits in bitmask attributes),
1079 * then an EGL_BAD_ATTRIBUTE error is generated."
1080 */
1081 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1082 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1083 egl_error = EGL_BAD_ATTRIBUTE;
1084 break;
1085
1086 default:
1087 assert(0);
1088 egl_error = EGL_BAD_MATCH;
1089 break;
1090 }
1091
1092 _eglError(egl_error, "dri2_create_context");
1093 }
1094
1095 static bool
1096 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1097 struct dri2_egl_display *dri2_dpy,
1098 uint32_t *ctx_attribs,
1099 unsigned *num_attribs)
1100 {
1101 int pos = 0;
1102
1103 assert(*num_attribs >= 8);
1104
1105 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1106 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1107 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1108 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1109
1110 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1111 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1112 * extension, don't even try to send it the robust-access flag.
1113 * It may explode. Instead, generate the required EGL error here.
1114 */
1115 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1116 && !dri2_dpy->robustness) {
1117 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1118 return false;
1119 }
1120
1121 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1122 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1123 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1124 }
1125
1126 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1127 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1128 * extension, don't even try to send it a reset strategy. It may
1129 * explode. Instead, generate the required EGL error here.
1130 */
1131 if (!dri2_dpy->robustness) {
1132 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1133 return false;
1134 }
1135
1136 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1137 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1138 }
1139
1140 *num_attribs = pos;
1141
1142 return true;
1143 }
1144
1145 /**
1146 * Called via eglCreateContext(), drv->API.CreateContext().
1147 */
1148 static _EGLContext *
1149 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1150 _EGLContext *share_list, const EGLint *attrib_list)
1151 {
1152 struct dri2_egl_context *dri2_ctx;
1153 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1154 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1155 __DRIcontext *shared =
1156 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1157 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1158 const __DRIconfig *dri_config;
1159 int api;
1160
1161 (void) drv;
1162
1163 dri2_ctx = malloc(sizeof *dri2_ctx);
1164 if (!dri2_ctx) {
1165 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1166 return NULL;
1167 }
1168
1169 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1170 goto cleanup;
1171
1172 /* The EGL_EXT_create_context_robustness spec says:
1173 *
1174 * "Add to the eglCreateContext context creation errors: [...]
1175 *
1176 * * If the reset notification behavior of <share_context> and the
1177 * newly created context are different then an EGL_BAD_MATCH error is
1178 * generated."
1179 */
1180 if (share_list && share_list->ResetNotificationStrategy !=
1181 dri2_ctx->base.ResetNotificationStrategy) {
1182 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1183 goto cleanup;
1184 }
1185
1186 /* The EGL_KHR_create_context_no_error spec says:
1187 *
1188 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1189 * used to create <share_context> does not match the value of
1190 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1191 */
1192 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1193 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1194 goto cleanup;
1195 }
1196
1197 switch (dri2_ctx->base.ClientAPI) {
1198 case EGL_OPENGL_ES_API:
1199 switch (dri2_ctx->base.ClientMajorVersion) {
1200 case 1:
1201 api = __DRI_API_GLES;
1202 break;
1203 case 2:
1204 api = __DRI_API_GLES2;
1205 break;
1206 case 3:
1207 api = __DRI_API_GLES3;
1208 break;
1209 default:
1210 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1211 free(dri2_ctx);
1212 return NULL;
1213 }
1214 break;
1215 case EGL_OPENGL_API:
1216 if ((dri2_ctx->base.ClientMajorVersion >= 4
1217 || (dri2_ctx->base.ClientMajorVersion == 3
1218 && dri2_ctx->base.ClientMinorVersion >= 2))
1219 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1220 api = __DRI_API_OPENGL_CORE;
1221 else
1222 api = __DRI_API_OPENGL;
1223 break;
1224 default:
1225 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1226 free(dri2_ctx);
1227 return NULL;
1228 }
1229
1230 if (conf != NULL) {
1231 /* The config chosen here isn't necessarily
1232 * used for surfaces later.
1233 * A pixmap surface will use the single config.
1234 * This opportunity depends on disabling the
1235 * doubleBufferMode check in
1236 * src/mesa/main/context.c:check_compatible()
1237 */
1238 if (dri2_config->dri_config[1][0])
1239 dri_config = dri2_config->dri_config[1][0];
1240 else
1241 dri_config = dri2_config->dri_config[0][0];
1242
1243 /* EGL_WINDOW_BIT is set only when there is a double-buffered dri_config.
1244 * This makes sure the back buffer will always be used.
1245 */
1246 if (conf->SurfaceType & EGL_WINDOW_BIT)
1247 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1248 }
1249 else
1250 dri_config = NULL;
1251
1252 if (dri2_dpy->image_driver) {
1253 unsigned error;
1254 unsigned num_attribs = 8;
1255 uint32_t ctx_attribs[8];
1256
1257 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1258 &num_attribs))
1259 goto cleanup;
1260
1261 dri2_ctx->dri_context =
1262 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1263 api,
1264 dri_config,
1265 shared,
1266 num_attribs / 2,
1267 ctx_attribs,
1268 & error,
1269 dri2_ctx);
1270 dri2_create_context_attribs_error(error);
1271 } else if (dri2_dpy->dri2) {
1272 if (dri2_dpy->dri2->base.version >= 3) {
1273 unsigned error;
1274 unsigned num_attribs = 8;
1275 uint32_t ctx_attribs[8];
1276
1277 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1278 &num_attribs))
1279 goto cleanup;
1280
1281 dri2_ctx->dri_context =
1282 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1283 api,
1284 dri_config,
1285 shared,
1286 num_attribs / 2,
1287 ctx_attribs,
1288 & error,
1289 dri2_ctx);
1290 dri2_create_context_attribs_error(error);
1291 } else {
1292 dri2_ctx->dri_context =
1293 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1294 api,
1295 dri_config,
1296 shared,
1297 dri2_ctx);
1298 }
1299 } else {
1300 assert(dri2_dpy->swrast);
1301 if (dri2_dpy->swrast->base.version >= 3) {
1302 unsigned error;
1303 unsigned num_attribs = 8;
1304 uint32_t ctx_attribs[8];
1305
1306 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1307 &num_attribs))
1308 goto cleanup;
1309
1310 dri2_ctx->dri_context =
1311 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1312 api,
1313 dri_config,
1314 shared,
1315 num_attribs / 2,
1316 ctx_attribs,
1317 & error,
1318 dri2_ctx);
1319 dri2_create_context_attribs_error(error);
1320 } else {
1321 dri2_ctx->dri_context =
1322 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1323 api,
1324 dri_config,
1325 shared,
1326 dri2_ctx);
1327 }
1328 }
1329
1330 if (!dri2_ctx->dri_context)
1331 goto cleanup;
1332
1333 return &dri2_ctx->base;
1334
1335 cleanup:
1336 free(dri2_ctx);
1337 return NULL;
1338 }
1339
1340 /**
1341 * Called via eglDestroyContext(), drv->API.DestroyContext().
1342 */
1343 static EGLBoolean
1344 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1345 {
1346 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1347 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1348
1349 if (_eglPutContext(ctx)) {
1350 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1351 free(dri2_ctx);
1352 }
1353
1354 return EGL_TRUE;
1355 }
1356
1357 static EGLBoolean
1358 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1359 {
1360 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1361
1362 if (!_eglPutSurface(surf))
1363 return EGL_TRUE;
1364
1365 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1366 }
1367
1368 /**
1369 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1370 */
1371 static EGLBoolean
1372 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1373 _EGLSurface *rsurf, _EGLContext *ctx)
1374 {
1375 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1376 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1377 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1378 _EGLContext *old_ctx;
1379 _EGLSurface *old_dsurf, *old_rsurf;
1380 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1381 __DRIdrawable *ddraw, *rdraw;
1382 __DRIcontext *cctx;
1383 EGLBoolean unbind;
1384
1385 if (!dri2_dpy)
1386 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1387
1388 /* make new bindings */
1389 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1390 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1391 return EGL_FALSE;
1392 }
1393
1394 /* flush before context switch */
1395 if (old_ctx)
1396 dri2_drv->glFlush();
1397
1398 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1399 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1400 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1401
1402 if (old_ctx) {
1403 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1404 dri2_dpy->core->unbindContext(old_cctx);
1405 }
1406
1407 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1408
1409 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1410 dri2_destroy_surface(drv, disp, old_dsurf);
1411 dri2_destroy_surface(drv, disp, old_rsurf);
1412
1413 if (!unbind)
1414 dri2_dpy->ref_count++;
1415 if (old_ctx) {
1416 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1417 dri2_destroy_context(drv, disp, old_ctx);
1418 dri2_display_release(old_disp);
1419 }
1420
1421 return EGL_TRUE;
1422 } else {
1423 /* undo the previous _eglBindContext */
1424 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1425 assert(&dri2_ctx->base == ctx &&
1426 tmp_dsurf == dsurf &&
1427 tmp_rsurf == rsurf);
1428
1429 _eglPutSurface(dsurf);
1430 _eglPutSurface(rsurf);
1431 _eglPutContext(ctx);
1432
1433 _eglPutSurface(old_dsurf);
1434 _eglPutSurface(old_rsurf);
1435 _eglPutContext(old_ctx);
1436
1437 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1438 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1439 * as EGL_SUCCESS.
1440 */
1441 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1442 }
1443 }
1444
1445 __DRIdrawable *
1446 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1447 {
1448 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1449
1450 return dri2_surf->dri_drawable;
1451 }
1452
1453 /*
1454 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1455 */
1456 static _EGLProc
1457 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1458 {
1459 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1460
1461 return dri2_drv->get_proc_address(procname);
1462 }
1463
1464 static _EGLSurface*
1465 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1466 _EGLConfig *conf, void *native_window,
1467 const EGLint *attrib_list)
1468 {
1469 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1470 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1471 attrib_list);
1472 }
1473
1474 static _EGLSurface*
1475 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1476 _EGLConfig *conf, void *native_pixmap,
1477 const EGLint *attrib_list)
1478 {
1479 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1480 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1481 attrib_list);
1482 }
1483
1484 static _EGLSurface*
1485 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1486 _EGLConfig *conf, const EGLint *attrib_list)
1487 {
1488 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1489 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1490 }
1491
1492 static EGLBoolean
1493 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1494 EGLint interval)
1495 {
1496 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1497 if (!dri2_dpy->vtbl->swap_interval)
1498 return EGL_TRUE;
1499 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1500 }
1501
1502 /**
1503 * Asks the client API to flush any rendering to the drawable so that we can
1504 * do our swapbuffers.
1505 */
1506 void
1507 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1508 {
1509 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1510 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1511
1512 if (dri2_dpy->flush) {
1513 if (dri2_dpy->flush->base.version >= 4) {
1514 /* We know there's a current context because:
1515 *
1516 * "If surface is not bound to the calling thread’s current
1517 * context, an EGL_BAD_SURFACE error is generated."
1518 */
1519 _EGLContext *ctx = _eglGetCurrentContext();
1520 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1521
1522 /* From the EGL 1.4 spec (page 52):
1523 *
1524 * "The contents of ancillary buffers are always undefined
1525 * after calling eglSwapBuffers."
1526 */
1527 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1528 dri_drawable,
1529 __DRI2_FLUSH_DRAWABLE |
1530 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1531 __DRI2_THROTTLE_SWAPBUFFER);
1532 } else {
1533 dri2_dpy->flush->flush(dri_drawable);
1534 }
1535 }
1536 }
1537
1538 static EGLBoolean
1539 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1540 {
1541 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1542 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1543 }
1544
1545 static EGLBoolean
1546 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1547 _EGLSurface *surf,
1548 const EGLint *rects, EGLint n_rects)
1549 {
1550 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1551 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1552 rects, n_rects);
1553 }
1554
1555 static EGLBoolean
1556 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1557 EGLint numRects, const EGLint *rects)
1558 {
1559 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1560 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1561 }
1562
1563 static EGLBoolean
1564 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1565 EGLint *rects, EGLint n_rects)
1566 {
1567 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1568 return dri2_dpy->vtbl->set_damage_region(drv, dpy, surf, rects, n_rects);
1569 }
1570
1571 static EGLBoolean
1572 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1573 EGLint x, EGLint y, EGLint width, EGLint height)
1574 {
1575 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1576 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1577 }
1578
1579 static EGLBoolean
1580 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1581 void *native_pixmap_target)
1582 {
1583 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1584 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1585 }
1586
1587 static EGLint
1588 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1589 {
1590 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1591 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1592 }
1593
1594 static EGLBoolean
1595 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1596 {
1597 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1598 _EGLSurface *surf = ctx->DrawSurface;
1599 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1600
1601 (void) drv;
1602
1603 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1604 * we need to copy fake to real here.*/
1605
1606 if (dri2_dpy->flush != NULL)
1607 dri2_dpy->flush->flush(dri_drawable);
1608
1609 return EGL_TRUE;
1610 }
1611
1612 static EGLBoolean
1613 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1614 {
1615 (void) drv;
1616 (void) disp;
1617
1618 if (engine != EGL_CORE_NATIVE_ENGINE)
1619 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1620 /* glXWaitX(); */
1621
1622 return EGL_TRUE;
1623 }
1624
1625 static EGLBoolean
1626 dri2_bind_tex_image(_EGLDriver *drv,
1627 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1628 {
1629 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1630 struct dri2_egl_context *dri2_ctx;
1631 _EGLContext *ctx;
1632 GLint format, target;
1633 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1634
1635 ctx = _eglGetCurrentContext();
1636 dri2_ctx = dri2_egl_context(ctx);
1637
1638 if (!_eglBindTexImage(drv, disp, surf, buffer))
1639 return EGL_FALSE;
1640
1641 switch (surf->TextureFormat) {
1642 case EGL_TEXTURE_RGB:
1643 format = __DRI_TEXTURE_FORMAT_RGB;
1644 break;
1645 case EGL_TEXTURE_RGBA:
1646 format = __DRI_TEXTURE_FORMAT_RGBA;
1647 break;
1648 default:
1649 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1650 format = __DRI_TEXTURE_FORMAT_RGBA;
1651 }
1652
1653 switch (surf->TextureTarget) {
1654 case EGL_TEXTURE_2D:
1655 target = GL_TEXTURE_2D;
1656 break;
1657 default:
1658 target = GL_TEXTURE_2D;
1659 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1660 }
1661
1662 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1663 target, format,
1664 dri_drawable);
1665
1666 return EGL_TRUE;
1667 }
1668
1669 static EGLBoolean
1670 dri2_release_tex_image(_EGLDriver *drv,
1671 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1672 {
1673 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1674 struct dri2_egl_context *dri2_ctx;
1675 _EGLContext *ctx;
1676 GLint target;
1677 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1678
1679 ctx = _eglGetCurrentContext();
1680 dri2_ctx = dri2_egl_context(ctx);
1681
1682 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1683 return EGL_FALSE;
1684
1685 switch (surf->TextureTarget) {
1686 case EGL_TEXTURE_2D:
1687 target = GL_TEXTURE_2D;
1688 break;
1689 default:
1690 assert(0);
1691 }
1692
1693 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1694 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1695 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1696 target, dri_drawable);
1697 }
1698
1699 return EGL_TRUE;
1700 }
1701
1702 static _EGLImage*
1703 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1704 EGLenum target, EGLClientBuffer buffer,
1705 const EGLint *attr_list)
1706 {
1707 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1708 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1709 attr_list);
1710 }
1711
1712 static _EGLImage *
1713 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1714 {
1715 struct dri2_egl_image *dri2_img;
1716
1717 if (dri_image == NULL) {
1718 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1719 return NULL;
1720 }
1721
1722 dri2_img = malloc(sizeof *dri2_img);
1723 if (!dri2_img) {
1724 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1725 return NULL;
1726 }
1727
1728 _eglInitImage(&dri2_img->base, disp);
1729
1730 dri2_img->dri_image = dri_image;
1731
1732 return &dri2_img->base;
1733 }
1734
1735 static _EGLImage *
1736 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1737 EGLClientBuffer buffer,
1738 const EGLint *attr_list)
1739 {
1740 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1741 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1742 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1743 __DRIimage *dri_image;
1744
1745 if (renderbuffer == 0) {
1746 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1747 return EGL_NO_IMAGE_KHR;
1748 }
1749
1750 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
1751 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1752 return EGL_NO_IMAGE_KHR;
1753 }
1754
1755 dri_image =
1756 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1757 renderbuffer, NULL);
1758
1759 return dri2_create_image_from_dri(disp, dri_image);
1760 }
1761
1762 #ifdef HAVE_WAYLAND_PLATFORM
1763
1764 /* This structure describes how a wl_buffer maps to one or more
1765 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1766 * offsets and strides of the planes in the buffer. This table maps a
1767 * wl_drm format code to a description of the planes in the buffer
1768 * that lets us create a __DRIimage for each of the planes. */
1769
1770 static const struct wl_drm_components_descriptor {
1771 uint32_t dri_components;
1772 EGLint components;
1773 int nplanes;
1774 } wl_drm_components[] = {
1775 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1776 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1777 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1778 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1779 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1780 };
1781
1782 static _EGLImage *
1783 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1784 EGLClientBuffer _buffer,
1785 const EGLint *attr_list)
1786 {
1787 struct wl_drm_buffer *buffer;
1788 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1789 const struct wl_drm_components_descriptor *f;
1790 __DRIimage *dri_image;
1791 _EGLImageAttribs attrs;
1792 int32_t plane;
1793
1794 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1795 (struct wl_resource *) _buffer);
1796 if (!buffer)
1797 return NULL;
1798
1799 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1800 return NULL;
1801
1802 plane = attrs.PlaneWL;
1803 f = buffer->driver_format;
1804 if (plane < 0 || plane >= f->nplanes) {
1805 _eglError(EGL_BAD_PARAMETER,
1806 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1807 return NULL;
1808 }
1809
1810 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1811
1812 if (dri_image == NULL) {
1813 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1814 return NULL;
1815 }
1816
1817 return dri2_create_image_from_dri(disp, dri_image);
1818 }
1819 #endif
1820
1821 static EGLBoolean
1822 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1823 EGLuint64KHR *ust, EGLuint64KHR *msc,
1824 EGLuint64KHR *sbc)
1825 {
1826 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1827 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1828 }
1829
1830 /**
1831 * Set the error code after a call to
1832 * dri2_egl_image::dri_image::createImageFromTexture.
1833 */
1834 static void
1835 dri2_create_image_khr_texture_error(int dri_error)
1836 {
1837 EGLint egl_error;
1838
1839 switch (dri_error) {
1840 case __DRI_IMAGE_ERROR_SUCCESS:
1841 return;
1842
1843 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1844 egl_error = EGL_BAD_ALLOC;
1845 break;
1846
1847 case __DRI_IMAGE_ERROR_BAD_MATCH:
1848 egl_error = EGL_BAD_MATCH;
1849 break;
1850
1851 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1852 egl_error = EGL_BAD_PARAMETER;
1853 break;
1854
1855 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1856 egl_error = EGL_BAD_ACCESS;
1857 break;
1858
1859 default:
1860 assert(0);
1861 egl_error = EGL_BAD_MATCH;
1862 break;
1863 }
1864
1865 _eglError(egl_error, "dri2_create_image_khr_texture");
1866 }
1867
1868 static _EGLImage *
1869 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1870 EGLenum target,
1871 EGLClientBuffer buffer,
1872 const EGLint *attr_list)
1873 {
1874 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1875 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1876 struct dri2_egl_image *dri2_img;
1877 GLuint texture = (GLuint) (uintptr_t) buffer;
1878 _EGLImageAttribs attrs;
1879 GLuint depth;
1880 GLenum gl_target;
1881 unsigned error;
1882
1883 if (texture == 0) {
1884 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1885 return EGL_NO_IMAGE_KHR;
1886 }
1887
1888 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1889 return EGL_NO_IMAGE_KHR;
1890
1891 switch (target) {
1892 case EGL_GL_TEXTURE_2D_KHR:
1893 if (!disp->Extensions.KHR_gl_texture_2D_image) {
1894 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1895 return EGL_NO_IMAGE_KHR;
1896 }
1897 depth = 0;
1898 gl_target = GL_TEXTURE_2D;
1899 break;
1900 case EGL_GL_TEXTURE_3D_KHR:
1901 if (!disp->Extensions.KHR_gl_texture_3D_image) {
1902 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1903 return EGL_NO_IMAGE_KHR;
1904 }
1905
1906 depth = attrs.GLTextureZOffset;
1907 gl_target = GL_TEXTURE_3D;
1908 break;
1909 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1910 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1911 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1912 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1913 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1914 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1915 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
1916 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1917 return EGL_NO_IMAGE_KHR;
1918 }
1919
1920 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1921 gl_target = GL_TEXTURE_CUBE_MAP;
1922 break;
1923 default:
1924 unreachable("Unexpected target in dri2_create_image_khr_texture()");
1925 return EGL_NO_IMAGE_KHR;
1926 }
1927
1928 dri2_img = malloc(sizeof *dri2_img);
1929 if (!dri2_img) {
1930 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1931 return EGL_NO_IMAGE_KHR;
1932 }
1933
1934 _eglInitImage(&dri2_img->base, disp);
1935
1936 dri2_img->dri_image =
1937 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1938 gl_target,
1939 texture,
1940 depth,
1941 attrs.GLTextureLevel,
1942 &error,
1943 dri2_img);
1944 dri2_create_image_khr_texture_error(error);
1945
1946 if (!dri2_img->dri_image) {
1947 free(dri2_img);
1948 return EGL_NO_IMAGE_KHR;
1949 }
1950 return &dri2_img->base;
1951 }
1952
1953 static EGLBoolean
1954 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1955 EGLint attribute, EGLint *value)
1956 {
1957 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1958 if (!dri2_dpy->vtbl->query_surface)
1959 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1960 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1961 }
1962
1963 static struct wl_buffer*
1964 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1965 _EGLImage *img)
1966 {
1967 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1968 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1969 }
1970
1971 #ifdef HAVE_LIBDRM
1972 static _EGLImage *
1973 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1974 EGLClientBuffer buffer, const EGLint *attr_list)
1975 {
1976 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1977 EGLint format, name, pitch;
1978 _EGLImageAttribs attrs;
1979 __DRIimage *dri_image;
1980
1981 name = (EGLint) (uintptr_t) buffer;
1982
1983 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1984 return NULL;
1985
1986 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1987 attrs.DRMBufferStrideMESA <= 0) {
1988 _eglError(EGL_BAD_PARAMETER,
1989 "bad width, height or stride");
1990 return NULL;
1991 }
1992
1993 switch (attrs.DRMBufferFormatMESA) {
1994 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1995 format = __DRI_IMAGE_FORMAT_ARGB8888;
1996 pitch = attrs.DRMBufferStrideMESA;
1997 break;
1998 default:
1999 _eglError(EGL_BAD_PARAMETER,
2000 "dri2_create_image_khr: unsupported pixmap depth");
2001 return NULL;
2002 }
2003
2004 dri_image =
2005 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2006 attrs.Width,
2007 attrs.Height,
2008 format,
2009 name,
2010 pitch,
2011 NULL);
2012
2013 return dri2_create_image_from_dri(disp, dri_image);
2014 }
2015
2016 static EGLBoolean
2017 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2018 {
2019 /**
2020 * The spec says:
2021 *
2022 * "Required attributes and their values are as follows:
2023 *
2024 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2025 *
2026 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2027 * by drm_fourcc.h and used as the pixel_format parameter of the
2028 * drm_mode_fb_cmd2 ioctl."
2029 *
2030 * and
2031 *
2032 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2033 * incomplete, EGL_BAD_PARAMETER is generated."
2034 */
2035 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2036 !attrs->DMABufFourCC.IsPresent)
2037 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2038
2039 /**
2040 * Also:
2041 *
2042 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2043 * specified for a plane's pitch or offset isn't supported by EGL,
2044 * EGL_BAD_ACCESS is generated."
2045 */
2046 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2047 if (attrs->DMABufPlanePitches[i].IsPresent &&
2048 attrs->DMABufPlanePitches[i].Value <= 0)
2049 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2050 }
2051
2052 /**
2053 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2054 * attribute values may be given.
2055 *
2056 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2057 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2058 */
2059 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2060 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2061 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2062 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2063 }
2064
2065 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2066 * mandate it, we only accept the same modifier across all planes. */
2067 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2068 if (attrs->DMABufPlaneFds[i].IsPresent) {
2069 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2070 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2071 (attrs->DMABufPlaneModifiersLo[0].Value !=
2072 attrs->DMABufPlaneModifiersLo[i].Value) ||
2073 (attrs->DMABufPlaneModifiersHi[0].Value !=
2074 attrs->DMABufPlaneModifiersHi[i].Value))
2075 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2076 }
2077 }
2078
2079 return EGL_TRUE;
2080 }
2081
2082 /* Returns the total number of file descriptors. Zero indicates an error. */
2083 static unsigned
2084 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2085 {
2086 unsigned plane_n;
2087
2088 switch (attrs->DMABufFourCC.Value) {
2089 case DRM_FORMAT_R8:
2090 case DRM_FORMAT_RG88:
2091 case DRM_FORMAT_GR88:
2092 case DRM_FORMAT_R16:
2093 case DRM_FORMAT_GR1616:
2094 case DRM_FORMAT_RGB332:
2095 case DRM_FORMAT_BGR233:
2096 case DRM_FORMAT_XRGB4444:
2097 case DRM_FORMAT_XBGR4444:
2098 case DRM_FORMAT_RGBX4444:
2099 case DRM_FORMAT_BGRX4444:
2100 case DRM_FORMAT_ARGB4444:
2101 case DRM_FORMAT_ABGR4444:
2102 case DRM_FORMAT_RGBA4444:
2103 case DRM_FORMAT_BGRA4444:
2104 case DRM_FORMAT_XRGB1555:
2105 case DRM_FORMAT_XBGR1555:
2106 case DRM_FORMAT_RGBX5551:
2107 case DRM_FORMAT_BGRX5551:
2108 case DRM_FORMAT_ARGB1555:
2109 case DRM_FORMAT_ABGR1555:
2110 case DRM_FORMAT_RGBA5551:
2111 case DRM_FORMAT_BGRA5551:
2112 case DRM_FORMAT_RGB565:
2113 case DRM_FORMAT_BGR565:
2114 case DRM_FORMAT_RGB888:
2115 case DRM_FORMAT_BGR888:
2116 case DRM_FORMAT_XRGB8888:
2117 case DRM_FORMAT_XBGR8888:
2118 case DRM_FORMAT_RGBX8888:
2119 case DRM_FORMAT_BGRX8888:
2120 case DRM_FORMAT_ARGB8888:
2121 case DRM_FORMAT_ABGR8888:
2122 case DRM_FORMAT_RGBA8888:
2123 case DRM_FORMAT_BGRA8888:
2124 case DRM_FORMAT_XRGB2101010:
2125 case DRM_FORMAT_XBGR2101010:
2126 case DRM_FORMAT_RGBX1010102:
2127 case DRM_FORMAT_BGRX1010102:
2128 case DRM_FORMAT_ARGB2101010:
2129 case DRM_FORMAT_ABGR2101010:
2130 case DRM_FORMAT_RGBA1010102:
2131 case DRM_FORMAT_BGRA1010102:
2132 case DRM_FORMAT_YUYV:
2133 case DRM_FORMAT_YVYU:
2134 case DRM_FORMAT_UYVY:
2135 case DRM_FORMAT_VYUY:
2136 plane_n = 1;
2137 break;
2138 case DRM_FORMAT_NV12:
2139 case DRM_FORMAT_NV21:
2140 case DRM_FORMAT_NV16:
2141 case DRM_FORMAT_NV61:
2142 plane_n = 2;
2143 break;
2144 case DRM_FORMAT_YUV410:
2145 case DRM_FORMAT_YVU410:
2146 case DRM_FORMAT_YUV411:
2147 case DRM_FORMAT_YVU411:
2148 case DRM_FORMAT_YUV420:
2149 case DRM_FORMAT_YVU420:
2150 case DRM_FORMAT_YUV422:
2151 case DRM_FORMAT_YVU422:
2152 case DRM_FORMAT_YUV444:
2153 case DRM_FORMAT_YVU444:
2154 plane_n = 3;
2155 break;
2156 default:
2157 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2158 return 0;
2159 }
2160
2161 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2162 /**
2163 * The modifiers extension spec says:
2164 *
2165 * "Modifiers may modify any attribute of a buffer import, including
2166 * but not limited to adding extra planes to a format which
2167 * otherwise does not have those planes. As an example, a modifier
2168 * may add a plane for an external compression buffer to a
2169 * single-plane format. The exact meaning and effect of any
2170 * modifier is canonically defined by drm_fourcc.h, not as part of
2171 * this extension."
2172 */
2173 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2174 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2175 plane_n = i + 1;
2176 }
2177 }
2178
2179 /**
2180 * The spec says:
2181 *
2182 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2183 * incomplete, EGL_BAD_PARAMETER is generated."
2184 */
2185 for (unsigned i = 0; i < plane_n; ++i) {
2186 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2187 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2188 !attrs->DMABufPlanePitches[i].IsPresent) {
2189 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2190 return 0;
2191 }
2192 }
2193
2194 /**
2195 * The spec also says:
2196 *
2197 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2198 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2199 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2200 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2201 */
2202 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2203 if (attrs->DMABufPlaneFds[i].IsPresent ||
2204 attrs->DMABufPlaneOffsets[i].IsPresent ||
2205 attrs->DMABufPlanePitches[i].IsPresent) {
2206 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2207 return 0;
2208 }
2209 }
2210
2211 return plane_n;
2212 }
2213
2214 static EGLBoolean
2215 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2216 EGLint max, EGLint *formats, EGLint *count)
2217 {
2218 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2219 if (max < 0 || (max > 0 && formats == NULL))
2220 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2221
2222 if (dri2_dpy->image->base.version < 15 ||
2223 dri2_dpy->image->queryDmaBufFormats == NULL)
2224 return EGL_FALSE;
2225
2226 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2227 formats, count))
2228 return EGL_FALSE;
2229
2230 return EGL_TRUE;
2231 }
2232
2233 static EGLBoolean
2234 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2235 EGLint max, EGLuint64KHR *modifiers,
2236 EGLBoolean *external_only, EGLint *count)
2237 {
2238 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2239
2240 if (max < 0)
2241 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2242
2243 if (max > 0 && modifiers == NULL)
2244 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2245
2246 if (dri2_dpy->image->base.version < 15 ||
2247 dri2_dpy->image->queryDmaBufModifiers == NULL)
2248 return EGL_FALSE;
2249
2250 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2251 max, modifiers,
2252 (unsigned int *) external_only,
2253 count) == false)
2254 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2255
2256 return EGL_TRUE;
2257 }
2258
2259 /**
2260 * The spec says:
2261 *
2262 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2263 * EGL will take a reference to the dma_buf(s) which it will release at any
2264 * time while the EGLDisplay is initialized. It is the responsibility of the
2265 * application to close the dma_buf file descriptors."
2266 *
2267 * Therefore we must never close or otherwise modify the file descriptors.
2268 */
2269 _EGLImage *
2270 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2271 EGLClientBuffer buffer, const EGLint *attr_list)
2272 {
2273 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2274 _EGLImage *res;
2275 _EGLImageAttribs attrs;
2276 __DRIimage *dri_image;
2277 unsigned num_fds;
2278 int fds[DMA_BUF_MAX_PLANES];
2279 int pitches[DMA_BUF_MAX_PLANES];
2280 int offsets[DMA_BUF_MAX_PLANES];
2281 uint64_t modifier;
2282 bool has_modifier = false;
2283 unsigned error;
2284
2285 /**
2286 * The spec says:
2287 *
2288 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2289 * error EGL_BAD_PARAMETER is generated."
2290 */
2291 if (buffer != NULL) {
2292 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2293 return NULL;
2294 }
2295
2296 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2297 return NULL;
2298
2299 if (!dri2_check_dma_buf_attribs(&attrs))
2300 return NULL;
2301
2302 num_fds = dri2_check_dma_buf_format(&attrs);
2303 if (!num_fds)
2304 return NULL;
2305
2306 for (unsigned i = 0; i < num_fds; ++i) {
2307 fds[i] = attrs.DMABufPlaneFds[i].Value;
2308 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2309 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2310 }
2311
2312 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2313 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2314 * attrs.DMABufPlaneModifiersHi[0] */
2315 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2316 modifier = (uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32;
2317 modifier |= (uint64_t) (attrs.DMABufPlaneModifiersLo[0].Value & 0xffffffff);
2318 has_modifier = true;
2319 }
2320
2321 if (has_modifier) {
2322 if (dri2_dpy->image->base.version < 15 ||
2323 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2324 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2325 return EGL_NO_IMAGE_KHR;
2326 }
2327 dri_image =
2328 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2329 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2330 modifier, fds, num_fds, pitches, offsets,
2331 attrs.DMABufYuvColorSpaceHint.Value,
2332 attrs.DMABufSampleRangeHint.Value,
2333 attrs.DMABufChromaHorizontalSiting.Value,
2334 attrs.DMABufChromaVerticalSiting.Value,
2335 &error,
2336 NULL);
2337 }
2338 else {
2339 dri_image =
2340 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2341 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2342 fds, num_fds, pitches, offsets,
2343 attrs.DMABufYuvColorSpaceHint.Value,
2344 attrs.DMABufSampleRangeHint.Value,
2345 attrs.DMABufChromaHorizontalSiting.Value,
2346 attrs.DMABufChromaVerticalSiting.Value,
2347 &error,
2348 NULL);
2349 }
2350 dri2_create_image_khr_texture_error(error);
2351
2352 if (!dri_image)
2353 return EGL_NO_IMAGE_KHR;
2354
2355 res = dri2_create_image_from_dri(disp, dri_image);
2356
2357 return res;
2358 }
2359 static _EGLImage *
2360 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2361 const EGLint *attr_list)
2362 {
2363 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2364 struct dri2_egl_image *dri2_img;
2365 _EGLImageAttribs attrs;
2366 unsigned int dri_use, valid_mask;
2367 int format;
2368
2369 (void) drv;
2370
2371 if (!attr_list) {
2372 _eglError(EGL_BAD_PARAMETER, __func__);
2373 return EGL_NO_IMAGE_KHR;
2374 }
2375
2376 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2377 return EGL_NO_IMAGE_KHR;
2378
2379 if (attrs.Width <= 0 || attrs.Height <= 0) {
2380 _eglError(EGL_BAD_PARAMETER, __func__);
2381 return EGL_NO_IMAGE_KHR;
2382 }
2383
2384 switch (attrs.DRMBufferFormatMESA) {
2385 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2386 format = __DRI_IMAGE_FORMAT_ARGB8888;
2387 break;
2388 default:
2389 _eglError(EGL_BAD_PARAMETER, __func__);
2390 return EGL_NO_IMAGE_KHR;
2391 }
2392
2393 valid_mask =
2394 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2395 EGL_DRM_BUFFER_USE_SHARE_MESA |
2396 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2397 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2398 _eglError(EGL_BAD_PARAMETER, __func__);
2399 return EGL_NO_IMAGE_KHR;
2400 }
2401
2402 dri_use = 0;
2403 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2404 dri_use |= __DRI_IMAGE_USE_SHARE;
2405 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2406 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2407 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2408 dri_use |= __DRI_IMAGE_USE_CURSOR;
2409
2410 dri2_img = malloc(sizeof *dri2_img);
2411 if (!dri2_img) {
2412 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2413 return EGL_NO_IMAGE_KHR;
2414 }
2415
2416 _eglInitImage(&dri2_img->base, disp);
2417
2418 dri2_img->dri_image =
2419 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2420 attrs.Width, attrs.Height,
2421 format, dri_use, dri2_img);
2422 if (dri2_img->dri_image == NULL) {
2423 free(dri2_img);
2424 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2425 return EGL_NO_IMAGE_KHR;
2426 }
2427
2428 return &dri2_img->base;
2429 }
2430
2431 static EGLBoolean
2432 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2433 EGLint *name, EGLint *handle, EGLint *stride)
2434 {
2435 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2436 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2437
2438 (void) drv;
2439
2440 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2441 __DRI_IMAGE_ATTRIB_NAME, name))
2442 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2443
2444 if (handle)
2445 dri2_dpy->image->queryImage(dri2_img->dri_image,
2446 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2447
2448 if (stride)
2449 dri2_dpy->image->queryImage(dri2_img->dri_image,
2450 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2451
2452 return EGL_TRUE;
2453 }
2454
2455 static EGLBoolean
2456 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2457 _EGLImage *img,
2458 EGLint *fourcc, EGLint *nplanes,
2459 EGLuint64KHR *modifiers)
2460 {
2461 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2462 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2463
2464 (void) drv;
2465
2466
2467 if (nplanes)
2468 dri2_dpy->image->queryImage(dri2_img->dri_image,
2469 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2470 if (fourcc)
2471 dri2_dpy->image->queryImage(dri2_img->dri_image,
2472 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2473
2474 if (modifiers)
2475 *modifiers = 0;
2476
2477 return EGL_TRUE;
2478 }
2479
2480 static EGLBoolean
2481 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2482 int *fds, EGLint *strides, EGLint *offsets)
2483 {
2484 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2485 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2486
2487 (void) drv;
2488
2489 /* rework later to provide multiple fds/strides/offsets */
2490 if (fds)
2491 dri2_dpy->image->queryImage(dri2_img->dri_image,
2492 __DRI_IMAGE_ATTRIB_FD, fds);
2493
2494 if (strides)
2495 dri2_dpy->image->queryImage(dri2_img->dri_image,
2496 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2497
2498 if (offsets) {
2499 int img_offset;
2500 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2501 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2502 if (ret)
2503 offsets[0] = img_offset;
2504 else
2505 offsets[0] = 0;
2506 }
2507
2508 return EGL_TRUE;
2509 }
2510
2511 #endif
2512
2513 _EGLImage *
2514 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2515 _EGLContext *ctx, EGLenum target,
2516 EGLClientBuffer buffer, const EGLint *attr_list)
2517 {
2518 (void) drv;
2519
2520 switch (target) {
2521 case EGL_GL_TEXTURE_2D_KHR:
2522 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2523 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2524 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2525 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2526 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2527 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2528 case EGL_GL_TEXTURE_3D_KHR:
2529 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2530 case EGL_GL_RENDERBUFFER_KHR:
2531 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2532 #ifdef HAVE_LIBDRM
2533 case EGL_DRM_BUFFER_MESA:
2534 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2535 case EGL_LINUX_DMA_BUF_EXT:
2536 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2537 #endif
2538 #ifdef HAVE_WAYLAND_PLATFORM
2539 case EGL_WAYLAND_BUFFER_WL:
2540 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2541 #endif
2542 default:
2543 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2544 return EGL_NO_IMAGE_KHR;
2545 }
2546 }
2547
2548 static EGLBoolean
2549 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2550 {
2551 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2552 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2553
2554 (void) drv;
2555
2556 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2557 free(dri2_img);
2558
2559 return EGL_TRUE;
2560 }
2561
2562 #ifdef HAVE_WAYLAND_PLATFORM
2563
2564 static void
2565 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2566 struct wl_drm_buffer *buffer)
2567 {
2568 _EGLDisplay *disp = user_data;
2569 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2570 __DRIimage *img;
2571 int dri_components = 0;
2572
2573 if (fd == -1)
2574 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2575 buffer->width,
2576 buffer->height,
2577 buffer->format,
2578 (int*)&name, 1,
2579 buffer->stride,
2580 buffer->offset,
2581 NULL);
2582 else
2583 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2584 buffer->width,
2585 buffer->height,
2586 buffer->format,
2587 &fd, 1,
2588 buffer->stride,
2589 buffer->offset,
2590 NULL);
2591
2592 if (img == NULL)
2593 return;
2594
2595 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2596
2597 buffer->driver_format = NULL;
2598 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2599 if (wl_drm_components[i].dri_components == dri_components)
2600 buffer->driver_format = &wl_drm_components[i];
2601
2602 if (buffer->driver_format == NULL)
2603 dri2_dpy->image->destroyImage(img);
2604 else
2605 buffer->driver_buffer = img;
2606 }
2607
2608 static void
2609 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2610 {
2611 _EGLDisplay *disp = user_data;
2612 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2613
2614 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2615 }
2616
2617 static struct wayland_drm_callbacks wl_drm_callbacks = {
2618 .authenticate = NULL,
2619 .reference_buffer = dri2_wl_reference_buffer,
2620 .release_buffer = dri2_wl_release_buffer
2621 };
2622
2623 static EGLBoolean
2624 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2625 struct wl_display *wl_dpy)
2626 {
2627 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2628 int flags = 0;
2629 uint64_t cap;
2630
2631 (void) drv;
2632
2633 if (dri2_dpy->wl_server_drm)
2634 return EGL_FALSE;
2635
2636 wl_drm_callbacks.authenticate =
2637 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2638
2639 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2640 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2641 dri2_dpy->image->base.version >= 7 &&
2642 dri2_dpy->image->createImageFromFds != NULL)
2643 flags |= WAYLAND_DRM_PRIME;
2644
2645 dri2_dpy->wl_server_drm =
2646 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2647 &wl_drm_callbacks, disp, flags);
2648
2649 if (!dri2_dpy->wl_server_drm)
2650 return EGL_FALSE;
2651
2652 #ifdef HAVE_DRM_PLATFORM
2653 /* We have to share the wl_drm instance with gbm, so gbm can convert
2654 * wl_buffers to gbm bos. */
2655 if (dri2_dpy->gbm_dri)
2656 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2657 #endif
2658
2659 return EGL_TRUE;
2660 }
2661
2662 static EGLBoolean
2663 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2664 struct wl_display *wl_dpy)
2665 {
2666 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2667
2668 (void) drv;
2669
2670 if (!dri2_dpy->wl_server_drm)
2671 return EGL_FALSE;
2672
2673 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2674 dri2_dpy->wl_server_drm = NULL;
2675
2676 return EGL_TRUE;
2677 }
2678
2679 static EGLBoolean
2680 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2681 struct wl_resource *buffer_resource,
2682 EGLint attribute, EGLint *value)
2683 {
2684 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2685 struct wl_drm_buffer *buffer;
2686 const struct wl_drm_components_descriptor *format;
2687
2688 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2689 if (!buffer)
2690 return EGL_FALSE;
2691
2692 format = buffer->driver_format;
2693 switch (attribute) {
2694 case EGL_TEXTURE_FORMAT:
2695 *value = format->components;
2696 return EGL_TRUE;
2697 case EGL_WIDTH:
2698 *value = buffer->width;
2699 return EGL_TRUE;
2700 case EGL_HEIGHT:
2701 *value = buffer->height;
2702 return EGL_TRUE;
2703 }
2704
2705 return EGL_FALSE;
2706 }
2707 #endif
2708
2709 static void
2710 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2711 {
2712 p_atomic_inc(&sync->refcount);
2713 }
2714
2715 static void
2716 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2717 struct dri2_egl_sync *dri2_sync)
2718 {
2719 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2720 switch (dri2_sync->base.Type) {
2721 case EGL_SYNC_REUSABLE_KHR:
2722 cnd_destroy(&dri2_sync->cond);
2723 break;
2724 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2725 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2726 close(dri2_sync->base.SyncFd);
2727 break;
2728 default:
2729 break;
2730 }
2731
2732 if (dri2_sync->fence)
2733 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2734
2735 free(dri2_sync);
2736 }
2737 }
2738
2739 static _EGLSync *
2740 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2741 EGLenum type, const EGLAttrib *attrib_list)
2742 {
2743 _EGLContext *ctx = _eglGetCurrentContext();
2744 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2745 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2746 struct dri2_egl_sync *dri2_sync;
2747 EGLint ret;
2748 pthread_condattr_t attr;
2749
2750 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2751 if (!dri2_sync) {
2752 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2753 return NULL;
2754 }
2755
2756 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2757 free(dri2_sync);
2758 return NULL;
2759 }
2760
2761 switch (type) {
2762 case EGL_SYNC_FENCE_KHR:
2763 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2764 if (!dri2_sync->fence) {
2765 /* Why did it fail? DRI doesn't return an error code, so we emit
2766 * a generic EGL error that doesn't communicate user error.
2767 */
2768 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2769 free(dri2_sync);
2770 return NULL;
2771 }
2772 break;
2773
2774 case EGL_SYNC_CL_EVENT_KHR:
2775 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2776 dri2_dpy->dri_screen,
2777 dri2_sync->base.CLEvent);
2778 /* this can only happen if the cl_event passed in is invalid. */
2779 if (!dri2_sync->fence) {
2780 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2781 free(dri2_sync);
2782 return NULL;
2783 }
2784
2785 /* the initial status must be "signaled" if the cl_event is signaled */
2786 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2787 dri2_sync->fence, 0, 0))
2788 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2789 break;
2790
2791 case EGL_SYNC_REUSABLE_KHR:
2792 /* intialize attr */
2793 ret = pthread_condattr_init(&attr);
2794
2795 if (ret) {
2796 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2797 free(dri2_sync);
2798 return NULL;
2799 }
2800
2801 /* change clock attribute to CLOCK_MONOTONIC */
2802 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2803
2804 if (ret) {
2805 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2806 free(dri2_sync);
2807 return NULL;
2808 }
2809
2810 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2811
2812 if (ret) {
2813 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2814 free(dri2_sync);
2815 return NULL;
2816 }
2817
2818 /* initial status of reusable sync must be "unsignaled" */
2819 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2820 break;
2821
2822 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2823 if (dri2_dpy->fence->create_fence_fd) {
2824 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2825 dri2_ctx->dri_context,
2826 dri2_sync->base.SyncFd);
2827 }
2828 if (!dri2_sync->fence) {
2829 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2830 free(dri2_sync);
2831 return NULL;
2832 }
2833 break;
2834 }
2835
2836 p_atomic_set(&dri2_sync->refcount, 1);
2837 return &dri2_sync->base;
2838 }
2839
2840 static EGLBoolean
2841 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2842 {
2843 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2844 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2845 EGLint ret = EGL_TRUE;
2846 EGLint err;
2847
2848 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2849 * then unlock all threads possibly blocked by the reusable sync before
2850 * destroying it.
2851 */
2852 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2853 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2854 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2855 /* unblock all threads currently blocked by sync */
2856 err = cnd_broadcast(&dri2_sync->cond);
2857
2858 if (err) {
2859 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2860 ret = EGL_FALSE;
2861 }
2862 }
2863
2864 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2865
2866 return ret;
2867 }
2868
2869 static EGLint
2870 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2871 {
2872 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2873 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2874
2875 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2876
2877 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2878 /* try to retrieve the actual native fence fd.. if rendering is
2879 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2880 */
2881 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2882 dri2_sync->fence);
2883 }
2884
2885 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2886 /* if native fence fd still not created, return an error: */
2887 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2888 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2889 }
2890
2891 return dup(sync->SyncFd);
2892 }
2893
2894 static EGLint
2895 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2896 EGLint flags, EGLTime timeout)
2897 {
2898 _EGLContext *ctx = _eglGetCurrentContext();
2899 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2900 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2901 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2902 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2903 unsigned wait_flags = 0;
2904
2905 /* timespecs for cnd_timedwait */
2906 struct timespec current;
2907 xtime expire;
2908
2909 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2910
2911 /* The EGL_KHR_fence_sync spec states:
2912 *
2913 * "If no context is current for the bound API,
2914 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2915 */
2916 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2917 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2918
2919 /* the sync object should take a reference while waiting */
2920 dri2_egl_ref_sync(dri2_sync);
2921
2922 switch (sync->Type) {
2923 case EGL_SYNC_FENCE_KHR:
2924 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2925 case EGL_SYNC_CL_EVENT_KHR:
2926 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2927 dri2_sync->fence, wait_flags,
2928 timeout))
2929 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2930 else
2931 ret = EGL_TIMEOUT_EXPIRED_KHR;
2932 break;
2933
2934 case EGL_SYNC_REUSABLE_KHR:
2935 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2936 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2937 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2938 dri2_drv->glFlush();
2939 }
2940
2941 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2942 if (timeout == EGL_FOREVER_KHR) {
2943 mtx_lock(&dri2_sync->mutex);
2944 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2945 mtx_unlock(&dri2_sync->mutex);
2946 } else {
2947 /* if reusable sync has not been yet signaled */
2948 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2949 clock_gettime(CLOCK_MONOTONIC, &current);
2950
2951 /* calculating when to expire */
2952 expire.nsec = timeout % 1000000000L;
2953 expire.sec = timeout / 1000000000L;
2954
2955 expire.nsec += current.tv_nsec;
2956 expire.sec += current.tv_sec;
2957
2958 /* expire.nsec now is a number between 0 and 1999999998 */
2959 if (expire.nsec > 999999999L) {
2960 expire.sec++;
2961 expire.nsec -= 1000000000L;
2962 }
2963
2964 mtx_lock(&dri2_sync->mutex);
2965 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2966 mtx_unlock(&dri2_sync->mutex);
2967
2968 if (ret == thrd_busy) {
2969 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2970 ret = EGL_TIMEOUT_EXPIRED_KHR;
2971 } else {
2972 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2973 ret = EGL_FALSE;
2974 }
2975 }
2976 }
2977 }
2978 break;
2979 }
2980 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2981
2982 return ret;
2983 }
2984
2985 static EGLBoolean
2986 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2987 EGLenum mode)
2988 {
2989 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2990 EGLint ret;
2991
2992 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
2993 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2994
2995 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
2996 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2997
2998 dri2_sync->base.SyncStatus = mode;
2999
3000 if (mode == EGL_SIGNALED_KHR) {
3001 ret = cnd_broadcast(&dri2_sync->cond);
3002
3003 /* fail to broadcast */
3004 if (ret)
3005 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3006 }
3007
3008 return EGL_TRUE;
3009 }
3010
3011 static EGLint
3012 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
3013 {
3014 _EGLContext *ctx = _eglGetCurrentContext();
3015 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3016 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3017 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3018
3019 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3020 dri2_sync->fence, 0);
3021 return EGL_TRUE;
3022 }
3023
3024 static int
3025 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
3026 struct mesa_glinterop_device_info *out)
3027 {
3028 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3029 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3030
3031 if (!dri2_dpy->interop)
3032 return MESA_GLINTEROP_UNSUPPORTED;
3033
3034 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3035 }
3036
3037 static int
3038 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
3039 struct mesa_glinterop_export_in *in,
3040 struct mesa_glinterop_export_out *out)
3041 {
3042 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3043 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3044
3045 if (!dri2_dpy->interop)
3046 return MESA_GLINTEROP_UNSUPPORTED;
3047
3048 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3049 }
3050
3051 static void
3052 dri2_unload(_EGLDriver *drv)
3053 {
3054 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3055
3056 dlclose(dri2_drv->handle);
3057 free(dri2_drv);
3058 }
3059
3060 static EGLBoolean
3061 dri2_load(_EGLDriver *drv)
3062 {
3063 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3064 #ifdef HAVE_ANDROID_PLATFORM
3065 const char *libname = "libglapi.so";
3066 #elif defined(__APPLE__)
3067 const char *libname = "libglapi.0.dylib";
3068 #elif defined(__CYGWIN__)
3069 const char *libname = "cygglapi-0.dll";
3070 #else
3071 const char *libname = "libglapi.so.0";
3072 #endif
3073 void *handle;
3074
3075 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
3076 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
3077 if (!handle) {
3078 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
3079 goto no_handle;
3080 }
3081
3082 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
3083 dlsym(handle, "_glapi_get_proc_address");
3084
3085 /* if glapi is not available, loading DRI drivers will fail */
3086 if (!dri2_drv->get_proc_address) {
3087 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
3088 goto no_symbol;
3089 }
3090
3091 dri2_drv->glFlush = (void (*)(void))
3092 dri2_drv->get_proc_address("glFlush");
3093
3094 /* if glFlush is not available things are horribly broken */
3095 if (!dri2_drv->glFlush) {
3096 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
3097 goto no_symbol;
3098 }
3099
3100 dri2_drv->handle = handle;
3101 return EGL_TRUE;
3102
3103 no_symbol:
3104 dlclose(handle);
3105 no_handle:
3106 return EGL_FALSE;
3107 }
3108
3109 /**
3110 * This is the main entrypoint into the driver, called by libEGL.
3111 * Create a new _EGLDriver object and init its dispatch table.
3112 */
3113 _EGLDriver *
3114 _eglBuiltInDriverDRI2(const char *args)
3115 {
3116 struct dri2_egl_driver *dri2_drv;
3117
3118 (void) args;
3119
3120 dri2_drv = calloc(1, sizeof *dri2_drv);
3121 if (!dri2_drv)
3122 return NULL;
3123
3124 if (!dri2_load(&dri2_drv->base)) {
3125 free(dri2_drv);
3126 return NULL;
3127 }
3128
3129 _eglInitDriverFallbacks(&dri2_drv->base);
3130 dri2_drv->base.API.Initialize = dri2_initialize;
3131 dri2_drv->base.API.Terminate = dri2_terminate;
3132 dri2_drv->base.API.CreateContext = dri2_create_context;
3133 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
3134 dri2_drv->base.API.MakeCurrent = dri2_make_current;
3135 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
3136 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
3137 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3138 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
3139 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
3140 dri2_drv->base.API.WaitClient = dri2_wait_client;
3141 dri2_drv->base.API.WaitNative = dri2_wait_native;
3142 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
3143 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
3144 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
3145 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
3146 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3147 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3148 dri2_drv->base.API.SetDamageRegion = dri2_set_damage_region;
3149 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
3150 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
3151 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
3152 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
3153 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
3154 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3155 dri2_drv->base.API.QuerySurface = dri2_query_surface;
3156 #ifdef HAVE_LIBDRM
3157 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3158 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3159 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3160 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3161 dri2_drv->base.API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3162 dri2_drv->base.API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3163 #endif
3164 #ifdef HAVE_WAYLAND_PLATFORM
3165 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3166 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3167 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3168 #endif
3169 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3170 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
3171 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
3172 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
3173 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
3174 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
3175 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3176 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
3177 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3178
3179 dri2_drv->base.Name = "DRI2";
3180 dri2_drv->base.Unload = dri2_unload;
3181
3182 return &dri2_drv->base;
3183 }