egl/dri: flesh out and use dri2_create_drawable()
[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 #include <stdbool.h>
29 #include <stdint.h>
30 #include <stdbool.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <stdio.h>
34 #include <limits.h>
35 #include <dlfcn.h>
36 #include <fcntl.h>
37 #include <errno.h>
38 #include <unistd.h>
39 #include <c11/threads.h>
40 #include <time.h>
41 #ifdef HAVE_LIBDRM
42 #include <xf86drm.h>
43 #include "drm-uapi/drm_fourcc.h"
44 #endif
45 #include <GL/gl.h>
46 #include <GL/internal/dri_interface.h>
47 #include <sys/types.h>
48 #include <sys/stat.h>
49
50 #ifdef HAVE_WAYLAND_PLATFORM
51 #include <wayland-client.h>
52 #include "wayland-drm.h"
53 #include "wayland-drm-client-protocol.h"
54 #include "linux-dmabuf-unstable-v1-client-protocol.h"
55 #endif
56
57 #ifdef HAVE_X11_PLATFORM
58 #include "X11/Xlibint.h"
59 #endif
60
61 #include "egldefines.h"
62 #include "egl_dri2.h"
63 #include "GL/mesa_glinterop.h"
64 #include "loader/loader.h"
65 #include "util/u_atomic.h"
66 #include "util/u_vector.h"
67 #include "mapi/glapi/glapi.h"
68
69 /* Additional definitions not yet in the drm_fourcc.h.
70 */
71 #ifndef DRM_FORMAT_P010
72 #define DRM_FORMAT_P010 fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cb:Cr plane 10 bits per channel */
73 #endif
74
75 #ifndef DRM_FORMAT_P012
76 #define DRM_FORMAT_P012 fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cb:Cr plane 12 bits per channel */
77 #endif
78
79 #ifndef DRM_FORMAT_P016
80 #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cb:Cr plane 16 bits per channel */
81 #endif
82
83 #define NUM_ATTRIBS 12
84
85 static void
86 dri_set_background_context(void *loaderPrivate)
87 {
88 _EGLContext *ctx = _eglGetCurrentContext();
89 _EGLThreadInfo *t = _eglGetCurrentThread();
90
91 _eglBindContextToThread(ctx, t);
92 }
93
94 static void
95 dri2_gl_flush()
96 {
97 static void (*glFlush)(void);
98 static mtx_t glFlushMutex = _MTX_INITIALIZER_NP;
99
100 mtx_lock(&glFlushMutex);
101 if (!glFlush)
102 glFlush = _glapi_get_proc_address("glFlush");
103 mtx_unlock(&glFlushMutex);
104
105 /* if glFlush is not available things are horribly broken */
106 if (!glFlush) {
107 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
108 return;
109 }
110
111 glFlush();
112 }
113
114 static GLboolean
115 dri_is_thread_safe(void *loaderPrivate)
116 {
117 struct dri2_egl_surface *dri2_surf = loaderPrivate;
118 MAYBE_UNUSED _EGLDisplay *display = dri2_surf->base.Resource.Display;
119
120 #ifdef HAVE_X11_PLATFORM
121 Display *xdpy = (Display*)display->PlatformDisplay;
122
123 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
124 * platform
125 *
126 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
127 * It wll be NULL if XInitThreads wasn't called.
128 */
129 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
130 return false;
131 #endif
132
133 #ifdef HAVE_WAYLAND_PLATFORM
134 if (display->Platform == _EGL_PLATFORM_WAYLAND)
135 return true;
136 #endif
137
138 return true;
139 }
140
141 const __DRIbackgroundCallableExtension background_callable_extension = {
142 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
143
144 .setBackgroundContext = dri_set_background_context,
145 .isThreadSafe = dri_is_thread_safe,
146 };
147
148 const __DRIuseInvalidateExtension use_invalidate = {
149 .base = { __DRI_USE_INVALIDATE, 1 }
150 };
151
152 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
153 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
154 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
155 [__DRI_ATTRIB_RED_SIZE] = EGL_RED_SIZE,
156 [__DRI_ATTRIB_GREEN_SIZE] = EGL_GREEN_SIZE,
157 [__DRI_ATTRIB_BLUE_SIZE] = EGL_BLUE_SIZE,
158 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
159 [__DRI_ATTRIB_ALPHA_SIZE] = EGL_ALPHA_SIZE,
160 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
161 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
162 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
163 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
164 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
165 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
166 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
167 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
168 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
169 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
170 };
171
172 const __DRIconfig *
173 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
174 EGLenum colorspace)
175 {
176 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
177 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
178
179 return conf->dri_config[double_buffer][srgb];
180 }
181
182 static EGLBoolean
183 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
184 {
185 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
186 return EGL_FALSE;
187
188 if (!_eglMatchConfig(conf, criteria))
189 return EGL_FALSE;
190
191 return EGL_TRUE;
192 }
193
194 struct dri2_egl_config *
195 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
196 EGLint surface_type, const EGLint *attr_list,
197 const unsigned int *rgba_masks)
198 {
199 struct dri2_egl_config *conf;
200 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
201 _EGLConfig base;
202 unsigned int attrib, value, double_buffer;
203 bool srgb = false;
204 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
205 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
206 _EGLConfig *matching_config;
207 EGLint num_configs = 0;
208 EGLint config_id;
209
210 _eglInitConfig(&base, disp, id);
211
212 double_buffer = 0;
213 bind_to_texture_rgb = 0;
214 bind_to_texture_rgba = 0;
215
216 for (int i = 0; i < __DRI_ATTRIB_MAX; ++i) {
217 if (!dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib, &value))
218 break;
219
220 switch (attrib) {
221 case __DRI_ATTRIB_RENDER_TYPE:
222 if (value & __DRI_ATTRIB_RGBA_BIT)
223 value = EGL_RGB_BUFFER;
224 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
225 value = EGL_LUMINANCE_BUFFER;
226 else
227 return NULL;
228 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
229 break;
230
231 case __DRI_ATTRIB_CONFIG_CAVEAT:
232 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
233 value = EGL_NON_CONFORMANT_CONFIG;
234 else if (value & __DRI_ATTRIB_SLOW_BIT)
235 value = EGL_SLOW_CONFIG;
236 else
237 value = EGL_NONE;
238 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
239 break;
240
241 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
242 bind_to_texture_rgb = value;
243 break;
244
245 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
246 bind_to_texture_rgba = value;
247 break;
248
249 case __DRI_ATTRIB_DOUBLE_BUFFER:
250 double_buffer = value;
251 break;
252
253 case __DRI_ATTRIB_RED_MASK:
254 dri_masks[0] = value;
255 break;
256
257 case __DRI_ATTRIB_GREEN_MASK:
258 dri_masks[1] = value;
259 break;
260
261 case __DRI_ATTRIB_BLUE_MASK:
262 dri_masks[2] = value;
263 break;
264
265 case __DRI_ATTRIB_ALPHA_MASK:
266 dri_masks[3] = value;
267 break;
268
269 case __DRI_ATTRIB_ACCUM_RED_SIZE:
270 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
271 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
272 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
273 /* Don't expose visuals with the accumulation buffer. */
274 if (value > 0)
275 return NULL;
276 break;
277
278 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
279 srgb = value != 0;
280 if (!disp->Extensions.KHR_gl_colorspace && srgb)
281 return NULL;
282 break;
283
284 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
285 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
286 _EGL_MAX_PBUFFER_WIDTH);
287 break;
288 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
289 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
290 _EGL_MAX_PBUFFER_HEIGHT);
291 break;
292 case __DRI_ATTRIB_MUTABLE_RENDER_BUFFER:
293 if (disp->Extensions.KHR_mutable_render_buffer)
294 surface_type |= EGL_MUTABLE_RENDER_BUFFER_BIT_KHR;
295 break;
296 default:
297 key = dri2_to_egl_attribute_map[attrib];
298 if (key != 0)
299 _eglSetConfigKey(&base, key, value);
300 break;
301 }
302 }
303
304 if (attr_list)
305 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
306 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
307
308 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
309 return NULL;
310
311 base.NativeRenderable = EGL_TRUE;
312
313 base.SurfaceType = surface_type;
314 if (surface_type & (EGL_PBUFFER_BIT |
315 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
316 base.BindToTextureRGB = bind_to_texture_rgb;
317 if (base.AlphaSize > 0)
318 base.BindToTextureRGBA = bind_to_texture_rgba;
319 }
320
321 base.RenderableType = disp->ClientAPIs;
322 base.Conformant = disp->ClientAPIs;
323
324 base.MinSwapInterval = dri2_dpy->min_swap_interval;
325 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
326
327 if (!_eglValidateConfig(&base, EGL_FALSE)) {
328 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
329 return NULL;
330 }
331
332 config_id = base.ConfigID;
333 base.ConfigID = EGL_DONT_CARE;
334 base.SurfaceType = EGL_DONT_CARE;
335 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
336 (_EGLArrayForEach) dri2_match_config, &base);
337
338 if (num_configs == 1) {
339 conf = (struct dri2_egl_config *) matching_config;
340
341 if (!conf->dri_config[double_buffer][srgb])
342 conf->dri_config[double_buffer][srgb] = dri_config;
343 else
344 /* a similar config type is already added (unlikely) => discard */
345 return NULL;
346 }
347 else if (num_configs == 0) {
348 conf = calloc(1, sizeof *conf);
349 if (conf == NULL)
350 return NULL;
351
352 conf->dri_config[double_buffer][srgb] = dri_config;
353
354 memcpy(&conf->base, &base, sizeof base);
355 conf->base.SurfaceType = 0;
356 conf->base.ConfigID = config_id;
357
358 _eglLinkConfig(&conf->base);
359 }
360 else {
361 unreachable("duplicates should not be possible");
362 return NULL;
363 }
364
365 if (double_buffer) {
366 surface_type &= ~EGL_PIXMAP_BIT;
367 }
368
369 /* No support for pbuffer + MSAA for now.
370 *
371 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
372 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
373 */
374 if (base.Samples) {
375 surface_type &= ~EGL_PBUFFER_BIT;
376 }
377
378 conf->base.SurfaceType |= surface_type;
379
380 return conf;
381 }
382
383 __DRIimage *
384 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
385 {
386 _EGLDisplay *disp = data;
387 struct dri2_egl_image *dri2_img;
388 _EGLImage *img;
389
390 (void) screen;
391
392 img = _eglLookupImage(image, disp);
393 if (img == NULL) {
394 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
395 return NULL;
396 }
397
398 dri2_img = dri2_egl_image(image);
399
400 return dri2_img->dri_image;
401 }
402
403 const __DRIimageLookupExtension image_lookup_extension = {
404 .base = { __DRI_IMAGE_LOOKUP, 1 },
405
406 .lookupEGLImage = dri2_lookup_egl_image
407 };
408
409 struct dri2_extension_match {
410 const char *name;
411 int version;
412 int offset;
413 };
414
415 static const struct dri2_extension_match dri3_driver_extensions[] = {
416 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
417 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
418 { NULL, 0, 0 }
419 };
420
421 static const struct dri2_extension_match dri2_driver_extensions[] = {
422 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
423 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
424 { NULL, 0, 0 }
425 };
426
427 static const struct dri2_extension_match dri2_core_extensions[] = {
428 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
429 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
430 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
431 { NULL, 0, 0 }
432 };
433
434 static const struct dri2_extension_match swrast_driver_extensions[] = {
435 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
436 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
437 { NULL, 0, 0 }
438 };
439
440 static const struct dri2_extension_match swrast_core_extensions[] = {
441 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
442 { NULL, 0, 0 }
443 };
444
445 static const struct dri2_extension_match optional_driver_extensions[] = {
446 { __DRI_CONFIG_OPTIONS, 1, offsetof(struct dri2_egl_display, configOptions) },
447 { NULL, 0, 0 }
448 };
449
450 static const struct dri2_extension_match optional_core_extensions[] = {
451 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
452 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
453 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
454 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
455 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
456 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
457 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
458 { __DRI2_FLUSH_CONTROL, 1, offsetof(struct dri2_egl_display, flush_control) },
459 { __DRI2_BLOB, 1, offsetof(struct dri2_egl_display, blob) },
460 { __DRI_MUTABLE_RENDER_BUFFER_DRIVER, 1, offsetof(struct dri2_egl_display, mutable_render_buffer) },
461 { NULL, 0, 0 }
462 };
463
464 static EGLBoolean
465 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
466 const struct dri2_extension_match *matches,
467 const __DRIextension **extensions,
468 bool optional)
469 {
470 int ret = EGL_TRUE;
471 void *field;
472
473 for (int i = 0; extensions[i]; i++) {
474 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
475 for (int j = 0; matches[j].name; j++) {
476 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
477 extensions[i]->version >= matches[j].version) {
478 field = ((char *) dri2_dpy + matches[j].offset);
479 *(const __DRIextension **) field = extensions[i];
480 _eglLog(_EGL_INFO, "found extension %s version %d",
481 extensions[i]->name, extensions[i]->version);
482 break;
483 }
484 }
485 }
486
487 for (int j = 0; matches[j].name; j++) {
488 field = ((char *) dri2_dpy + matches[j].offset);
489 if (*(const __DRIextension **) field == NULL) {
490 if (optional) {
491 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
492 matches[j].name, matches[j].version);
493 } else {
494 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
495 matches[j].name, matches[j].version);
496 ret = EGL_FALSE;
497 }
498 }
499 }
500
501 return ret;
502 }
503
504 static const __DRIextension **
505 dri2_open_driver(_EGLDisplay *disp)
506 {
507 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
508 static const char *search_path_vars[] = {
509 "LIBGL_DRIVERS_PATH",
510 NULL,
511 };
512
513 return loader_open_driver(dri2_dpy->driver_name,
514 &dri2_dpy->driver,
515 search_path_vars);
516 }
517
518 static EGLBoolean
519 dri2_load_driver_common(_EGLDisplay *disp,
520 const struct dri2_extension_match *driver_extensions)
521 {
522 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
523 const __DRIextension **extensions;
524
525 extensions = dri2_open_driver(disp);
526 if (!extensions)
527 return EGL_FALSE;
528
529 if (!dri2_bind_extensions(dri2_dpy, driver_extensions, extensions, false)) {
530 dlclose(dri2_dpy->driver);
531 return EGL_FALSE;
532 }
533 dri2_dpy->driver_extensions = extensions;
534
535 dri2_bind_extensions(dri2_dpy, optional_driver_extensions, extensions, true);
536
537 return EGL_TRUE;
538 }
539
540 EGLBoolean
541 dri2_load_driver(_EGLDisplay *disp)
542 {
543 return dri2_load_driver_common(disp, dri2_driver_extensions);
544 }
545
546 EGLBoolean
547 dri2_load_driver_dri3(_EGLDisplay *disp)
548 {
549 return dri2_load_driver_common(disp, dri3_driver_extensions);
550 }
551
552 EGLBoolean
553 dri2_load_driver_swrast(_EGLDisplay *disp)
554 {
555 return dri2_load_driver_common(disp, swrast_driver_extensions);
556 }
557
558 static unsigned
559 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
560 {
561 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
562 unsigned int value = 0;
563
564 if (!rendererQuery ||
565 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
566 return 0;
567
568 return value;
569 }
570
571 static const char *
572 dri2_query_driver_name(_EGLDisplay *disp)
573 {
574 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
575 return dri2_dpy->driver_name;
576 }
577
578 static char *
579 dri2_query_driver_config(_EGLDisplay *disp)
580 {
581 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
582 const __DRIconfigOptionsExtension *ext = dri2_dpy->configOptions;
583
584 if (ext->base.version >= 2)
585 return ext->getXml(dri2_dpy->driver_name);
586
587 return strdup(ext->xml);
588 }
589
590
591 void
592 dri2_setup_screen(_EGLDisplay *disp)
593 {
594 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
595 unsigned int api_mask;
596
597 /*
598 * EGL 1.5 specification defines the default value to 1. Moreover,
599 * eglSwapInterval() is required to clamp requested value to the supported
600 * range. Since the default value is implicitly assumed to be supported,
601 * use it as both minimum and maximum for the platforms that do not allow
602 * changing the interval. Platforms, which allow it (e.g. x11, wayland)
603 * override these values already.
604 */
605 dri2_dpy->min_swap_interval = 1;
606 dri2_dpy->max_swap_interval = 1;
607 dri2_dpy->default_swap_interval = 1;
608
609 if (dri2_dpy->image_driver) {
610 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
611 } else if (dri2_dpy->dri2) {
612 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
613 } else {
614 assert(dri2_dpy->swrast);
615 api_mask = 1 << __DRI_API_OPENGL |
616 1 << __DRI_API_GLES |
617 1 << __DRI_API_GLES2 |
618 1 << __DRI_API_GLES3;
619 }
620
621 disp->ClientAPIs = 0;
622 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
623 disp->ClientAPIs |= EGL_OPENGL_BIT;
624 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
625 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
626 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
627 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
628 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
629 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
630
631 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
632 disp->Extensions.KHR_no_config_context = EGL_TRUE;
633 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
634
635 if (dri2_dpy->configOptions) {
636 disp->Extensions.MESA_query_driver = EGL_TRUE;
637 }
638
639 /* Report back to EGL the bitmask of priorities supported */
640 disp->Extensions.IMG_context_priority =
641 dri2_renderer_query_integer(dri2_dpy,
642 __DRI2_RENDERER_HAS_CONTEXT_PRIORITY);
643
644 disp->Extensions.EXT_pixel_format_float = EGL_TRUE;
645
646 if (dri2_renderer_query_integer(dri2_dpy,
647 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
648 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
649
650 if (dri2_dpy->image_driver ||
651 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
652 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
653 disp->Extensions.KHR_create_context = EGL_TRUE;
654
655 if (dri2_dpy->robustness)
656 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
657 }
658
659 if (dri2_dpy->no_error)
660 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
661
662 if (dri2_dpy->fence) {
663 disp->Extensions.KHR_fence_sync = EGL_TRUE;
664 disp->Extensions.KHR_wait_sync = EGL_TRUE;
665 if (dri2_dpy->fence->get_fence_from_cl_event)
666 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
667 if (dri2_dpy->fence->base.version >= 2 &&
668 dri2_dpy->fence->get_capabilities) {
669 unsigned capabilities =
670 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
671 disp->Extensions.ANDROID_native_fence_sync =
672 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
673 }
674 }
675
676 if (dri2_dpy->blob)
677 disp->Extensions.ANDROID_blob_cache = EGL_TRUE;
678
679 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
680
681 if (dri2_dpy->image) {
682 if (dri2_dpy->image->base.version >= 10 &&
683 dri2_dpy->image->getCapabilities != NULL) {
684 int capabilities;
685
686 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
687 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
688
689 if (dri2_dpy->image->base.version >= 11)
690 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
691 } else {
692 disp->Extensions.MESA_drm_image = EGL_TRUE;
693 if (dri2_dpy->image->base.version >= 11)
694 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
695 }
696
697 disp->Extensions.KHR_image_base = EGL_TRUE;
698 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
699 if (dri2_dpy->image->base.version >= 5 &&
700 dri2_dpy->image->createImageFromTexture) {
701 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
702 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
703
704 if (dri2_renderer_query_integer(dri2_dpy,
705 __DRI2_RENDERER_HAS_TEXTURE_3D))
706 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
707 }
708 #ifdef HAVE_LIBDRM
709 if (dri2_dpy->image->base.version >= 8 &&
710 dri2_dpy->image->createImageFromDmaBufs) {
711 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
712 }
713 if (dri2_dpy->image->base.version >= 15 &&
714 dri2_dpy->image->createImageFromDmaBufs2 &&
715 dri2_dpy->image->queryDmaBufFormats &&
716 dri2_dpy->image->queryDmaBufModifiers) {
717 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
718 }
719 #endif
720 }
721
722 if (dri2_dpy->flush_control)
723 disp->Extensions.KHR_context_flush_control = EGL_TRUE;
724 }
725
726 void
727 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
728 {
729 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
730 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
731
732 /* Allow driconf to override applications.*/
733 if (dri2_dpy->config)
734 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
735 "vblank_mode", &vblank_mode);
736 switch (vblank_mode) {
737 case DRI_CONF_VBLANK_NEVER:
738 dri2_dpy->min_swap_interval = 0;
739 dri2_dpy->max_swap_interval = 0;
740 dri2_dpy->default_swap_interval = 0;
741 break;
742 case DRI_CONF_VBLANK_ALWAYS_SYNC:
743 dri2_dpy->min_swap_interval = 1;
744 dri2_dpy->max_swap_interval = max_swap_interval;
745 dri2_dpy->default_swap_interval = 1;
746 break;
747 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
748 dri2_dpy->min_swap_interval = 0;
749 dri2_dpy->max_swap_interval = max_swap_interval;
750 dri2_dpy->default_swap_interval = 0;
751 break;
752 default:
753 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
754 dri2_dpy->min_swap_interval = 0;
755 dri2_dpy->max_swap_interval = max_swap_interval;
756 dri2_dpy->default_swap_interval = 1;
757 break;
758 }
759 }
760
761 /* All platforms but DRM call this function to create the screen and populate
762 * the driver_configs. DRM inherits that information from its display - GBM.
763 */
764 EGLBoolean
765 dri2_create_screen(_EGLDisplay *disp)
766 {
767 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
768
769 if (dri2_dpy->image_driver) {
770 dri2_dpy->dri_screen =
771 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
772 dri2_dpy->loader_extensions,
773 dri2_dpy->driver_extensions,
774 &dri2_dpy->driver_configs,
775 disp);
776 } else if (dri2_dpy->dri2) {
777 if (dri2_dpy->dri2->base.version >= 4) {
778 dri2_dpy->dri_screen =
779 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
780 dri2_dpy->loader_extensions,
781 dri2_dpy->driver_extensions,
782 &dri2_dpy->driver_configs, disp);
783 } else {
784 dri2_dpy->dri_screen =
785 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
786 dri2_dpy->loader_extensions,
787 &dri2_dpy->driver_configs, disp);
788 }
789 } else {
790 assert(dri2_dpy->swrast);
791 if (dri2_dpy->swrast->base.version >= 4) {
792 dri2_dpy->dri_screen =
793 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
794 dri2_dpy->driver_extensions,
795 &dri2_dpy->driver_configs, disp);
796 } else {
797 dri2_dpy->dri_screen =
798 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
799 &dri2_dpy->driver_configs, disp);
800 }
801 }
802
803 if (dri2_dpy->dri_screen == NULL) {
804 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
805 return EGL_FALSE;
806 }
807
808 dri2_dpy->own_dri_screen = true;
809 return EGL_TRUE;
810 }
811
812 EGLBoolean
813 dri2_setup_extensions(_EGLDisplay *disp)
814 {
815 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
816 const struct dri2_extension_match *mandatory_core_extensions;
817 const __DRIextension **extensions;
818
819 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
820
821 if (dri2_dpy->image_driver || dri2_dpy->dri2)
822 mandatory_core_extensions = dri2_core_extensions;
823 else
824 mandatory_core_extensions = swrast_core_extensions;
825
826 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
827 return EGL_FALSE;
828
829 #ifdef HAVE_DRI3_MODIFIERS
830 dri2_dpy->multibuffers_available =
831 (dri2_dpy->dri3_major_version > 1 || (dri2_dpy->dri3_major_version == 1 &&
832 dri2_dpy->dri3_minor_version >= 2)) &&
833 (dri2_dpy->present_major_version > 1 || (dri2_dpy->present_major_version == 1 &&
834 dri2_dpy->present_minor_version >= 2)) &&
835 (dri2_dpy->image && dri2_dpy->image->base.version >= 15);
836 #endif
837
838 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
839 return EGL_TRUE;
840 }
841
842 /**
843 * Called via eglInitialize(), GLX_drv->API.Initialize().
844 *
845 * This must be guaranteed to be called exactly once, even if eglInitialize is
846 * called many times (without a eglTerminate in between).
847 */
848 static EGLBoolean
849 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
850 {
851 EGLBoolean ret = EGL_FALSE;
852 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
853
854 /* In the case where the application calls eglMakeCurrent(context1),
855 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
856 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
857 * initialized, as we need it to be able to free context1 correctly.
858 *
859 * It would probably be safest to forcibly release the display with
860 * dri2_display_release, to make sure the display is reinitialized correctly.
861 * However, the EGL spec states that we need to keep a reference to the
862 * current context (so we cannot call dri2_make_current(NULL)), and therefore
863 * we would leak context1 as we would be missing the old display connection
864 * to free it up correctly.
865 */
866 if (dri2_dpy) {
867 dri2_dpy->ref_count++;
868 return EGL_TRUE;
869 }
870
871 loader_set_logger(_eglLog);
872
873 switch (disp->Platform) {
874 case _EGL_PLATFORM_SURFACELESS:
875 ret = dri2_initialize_surfaceless(drv, disp);
876 break;
877 case _EGL_PLATFORM_X11:
878 ret = dri2_initialize_x11(drv, disp);
879 break;
880 case _EGL_PLATFORM_DRM:
881 ret = dri2_initialize_drm(drv, disp);
882 break;
883 case _EGL_PLATFORM_WAYLAND:
884 ret = dri2_initialize_wayland(drv, disp);
885 break;
886 case _EGL_PLATFORM_ANDROID:
887 ret = dri2_initialize_android(drv, disp);
888 break;
889 default:
890 unreachable("Callers ensure we cannot get here.");
891 return EGL_FALSE;
892 }
893
894 if (!ret)
895 return EGL_FALSE;
896
897 dri2_dpy = dri2_egl_display(disp);
898 dri2_dpy->ref_count++;
899
900 return EGL_TRUE;
901 }
902
903 /**
904 * Decrement display reference count, and free up display if necessary.
905 */
906 static void
907 dri2_display_release(_EGLDisplay *disp)
908 {
909 struct dri2_egl_display *dri2_dpy;
910
911 if (!disp)
912 return;
913
914 dri2_dpy = dri2_egl_display(disp);
915
916 assert(dri2_dpy->ref_count > 0);
917 dri2_dpy->ref_count--;
918
919 if (dri2_dpy->ref_count > 0)
920 return;
921
922 _eglCleanupDisplay(disp);
923 dri2_display_destroy(disp);
924 }
925
926 void
927 dri2_display_destroy(_EGLDisplay *disp)
928 {
929 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
930
931 if (dri2_dpy->own_dri_screen) {
932 if (dri2_dpy->vtbl && dri2_dpy->vtbl->close_screen_notify)
933 dri2_dpy->vtbl->close_screen_notify(disp);
934 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
935 }
936 if (dri2_dpy->fd >= 0)
937 close(dri2_dpy->fd);
938 if (dri2_dpy->driver)
939 dlclose(dri2_dpy->driver);
940 free(dri2_dpy->driver_name);
941
942 #ifdef HAVE_WAYLAND_PLATFORM
943 free(dri2_dpy->device_name);
944 #endif
945
946 switch (disp->Platform) {
947 case _EGL_PLATFORM_X11:
948 dri2_teardown_x11(dri2_dpy);
949 break;
950 case _EGL_PLATFORM_DRM:
951 dri2_teardown_drm(dri2_dpy);
952 break;
953 case _EGL_PLATFORM_WAYLAND:
954 dri2_teardown_wayland(dri2_dpy);
955 break;
956 default:
957 /* TODO: add teardown for other platforms */
958 break;
959 }
960
961 /* The drm platform does not create the screen/driver_configs but reuses
962 * the ones from the gbm device. As such the gbm itself is responsible
963 * for the cleanup.
964 */
965 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
966 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
967 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
968 free(dri2_dpy->driver_configs);
969 }
970 free(dri2_dpy);
971 disp->DriverData = NULL;
972 }
973
974 __DRIbuffer *
975 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
976 unsigned int att, unsigned int format)
977 {
978 struct dri2_egl_display *dri2_dpy =
979 dri2_egl_display(dri2_surf->base.Resource.Display);
980
981 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
982 return NULL;
983
984 if (!dri2_surf->local_buffers[att]) {
985 dri2_surf->local_buffers[att] =
986 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
987 dri2_surf->base.Width, dri2_surf->base.Height);
988 }
989
990 return dri2_surf->local_buffers[att];
991 }
992
993 void
994 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
995 {
996 struct dri2_egl_display *dri2_dpy =
997 dri2_egl_display(dri2_surf->base.Resource.Display);
998
999 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1000 if (dri2_surf->local_buffers[i]) {
1001 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1002 dri2_surf->local_buffers[i]);
1003 dri2_surf->local_buffers[i] = NULL;
1004 }
1005 }
1006 }
1007
1008 /**
1009 * Called via eglTerminate(), drv->API.Terminate().
1010 *
1011 * This must be guaranteed to be called exactly once, even if eglTerminate is
1012 * called many times (without a eglInitialize in between).
1013 */
1014 static EGLBoolean
1015 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1016 {
1017 /* Release all non-current Context/Surfaces. */
1018 _eglReleaseDisplayResources(drv, disp);
1019
1020 dri2_display_release(disp);
1021
1022 return EGL_TRUE;
1023 }
1024
1025 /**
1026 * Set the error code after a call to
1027 * dri2_egl_display::dri2::createContextAttribs.
1028 */
1029 static void
1030 dri2_create_context_attribs_error(int dri_error)
1031 {
1032 EGLint egl_error;
1033
1034 switch (dri_error) {
1035 case __DRI_CTX_ERROR_SUCCESS:
1036 return;
1037
1038 case __DRI_CTX_ERROR_NO_MEMORY:
1039 egl_error = EGL_BAD_ALLOC;
1040 break;
1041
1042 /* From the EGL_KHR_create_context spec, section "Errors":
1043 *
1044 * * If <config> does not support a client API context compatible
1045 * with the requested API major and minor version, [...] context flags,
1046 * and context reset notification behavior (for client API types where
1047 * these attributes are supported), then an EGL_BAD_MATCH error is
1048 * generated.
1049 *
1050 * * If an OpenGL ES context is requested and the values for
1051 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1052 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1053 * is not defined, than an EGL_BAD_MATCH error is generated.
1054 *
1055 * * If an OpenGL context is requested, the requested version is
1056 * greater than 3.2, and the value for attribute
1057 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1058 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1059 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1060 * one of these bits set; or if the implementation does not support
1061 * the requested profile, then an EGL_BAD_MATCH error is generated.
1062 */
1063 case __DRI_CTX_ERROR_BAD_API:
1064 case __DRI_CTX_ERROR_BAD_VERSION:
1065 case __DRI_CTX_ERROR_BAD_FLAG:
1066 egl_error = EGL_BAD_MATCH;
1067 break;
1068
1069 /* From the EGL_KHR_create_context spec, section "Errors":
1070 *
1071 * * If an attribute name or attribute value in <attrib_list> is not
1072 * recognized (including unrecognized bits in bitmask attributes),
1073 * then an EGL_BAD_ATTRIBUTE error is generated."
1074 */
1075 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1076 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1077 egl_error = EGL_BAD_ATTRIBUTE;
1078 break;
1079
1080 default:
1081 assert(!"unknown dri_error code");
1082 egl_error = EGL_BAD_MATCH;
1083 break;
1084 }
1085
1086 _eglError(egl_error, "dri2_create_context");
1087 }
1088
1089 static bool
1090 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1091 struct dri2_egl_display *dri2_dpy,
1092 uint32_t *ctx_attribs,
1093 unsigned *num_attribs)
1094 {
1095 int pos = 0;
1096
1097 assert(*num_attribs >= NUM_ATTRIBS);
1098
1099 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1100 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1101 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1102 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1103
1104 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1105 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1106 * extension, don't even try to send it the robust-access flag.
1107 * It may explode. Instead, generate the required EGL error here.
1108 */
1109 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1110 && !dri2_dpy->robustness) {
1111 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1112 return false;
1113 }
1114
1115 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1116 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1117 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1118 }
1119
1120 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1121 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1122 * extension, don't even try to send it a reset strategy. It may
1123 * explode. Instead, generate the required EGL error here.
1124 */
1125 if (!dri2_dpy->robustness) {
1126 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1127 return false;
1128 }
1129
1130 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1131 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1132 }
1133
1134 if (dri2_ctx->base.ContextPriority != EGL_CONTEXT_PRIORITY_MEDIUM_IMG) {
1135 unsigned val;
1136
1137 switch (dri2_ctx->base.ContextPriority) {
1138 case EGL_CONTEXT_PRIORITY_HIGH_IMG:
1139 val = __DRI_CTX_PRIORITY_HIGH;
1140 break;
1141 case EGL_CONTEXT_PRIORITY_MEDIUM_IMG:
1142 val = __DRI_CTX_PRIORITY_MEDIUM;
1143 break;
1144 case EGL_CONTEXT_PRIORITY_LOW_IMG:
1145 val = __DRI_CTX_PRIORITY_LOW;
1146 break;
1147 default:
1148 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1149 return false;
1150 }
1151
1152 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_PRIORITY;
1153 ctx_attribs[pos++] = val;
1154 }
1155
1156 if (dri2_ctx->base.ReleaseBehavior == EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR) {
1157 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR;
1158 ctx_attribs[pos++] = __DRI_CTX_RELEASE_BEHAVIOR_NONE;
1159 }
1160
1161 *num_attribs = pos;
1162
1163 return true;
1164 }
1165
1166 /**
1167 * Called via eglCreateContext(), drv->API.CreateContext().
1168 */
1169 static _EGLContext *
1170 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1171 _EGLContext *share_list, const EGLint *attrib_list)
1172 {
1173 struct dri2_egl_context *dri2_ctx;
1174 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1175 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1176 __DRIcontext *shared =
1177 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1178 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1179 const __DRIconfig *dri_config;
1180 int api;
1181 unsigned error;
1182 unsigned num_attribs = NUM_ATTRIBS;
1183 uint32_t ctx_attribs[NUM_ATTRIBS];
1184
1185 (void) drv;
1186
1187 dri2_ctx = malloc(sizeof *dri2_ctx);
1188 if (!dri2_ctx) {
1189 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1190 return NULL;
1191 }
1192
1193 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1194 goto cleanup;
1195
1196 /* The EGL_EXT_create_context_robustness spec says:
1197 *
1198 * "Add to the eglCreateContext context creation errors: [...]
1199 *
1200 * * If the reset notification behavior of <share_context> and the
1201 * newly created context are different then an EGL_BAD_MATCH error is
1202 * generated."
1203 */
1204 if (share_list && share_list->ResetNotificationStrategy !=
1205 dri2_ctx->base.ResetNotificationStrategy) {
1206 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1207 goto cleanup;
1208 }
1209
1210 /* The EGL_KHR_create_context_no_error spec says:
1211 *
1212 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1213 * used to create <share_context> does not match the value of
1214 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1215 */
1216 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1217 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1218 goto cleanup;
1219 }
1220
1221 switch (dri2_ctx->base.ClientAPI) {
1222 case EGL_OPENGL_ES_API:
1223 switch (dri2_ctx->base.ClientMajorVersion) {
1224 case 1:
1225 api = __DRI_API_GLES;
1226 break;
1227 case 2:
1228 api = __DRI_API_GLES2;
1229 break;
1230 case 3:
1231 api = __DRI_API_GLES3;
1232 break;
1233 default:
1234 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1235 free(dri2_ctx);
1236 return NULL;
1237 }
1238 break;
1239 case EGL_OPENGL_API:
1240 if ((dri2_ctx->base.ClientMajorVersion >= 4
1241 || (dri2_ctx->base.ClientMajorVersion == 3
1242 && dri2_ctx->base.ClientMinorVersion >= 2))
1243 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1244 api = __DRI_API_OPENGL_CORE;
1245 else
1246 api = __DRI_API_OPENGL;
1247 break;
1248 default:
1249 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1250 free(dri2_ctx);
1251 return NULL;
1252 }
1253
1254 if (conf != NULL) {
1255 /* The config chosen here isn't necessarily
1256 * used for surfaces later.
1257 * A pixmap surface will use the single config.
1258 * This opportunity depends on disabling the
1259 * doubleBufferMode check in
1260 * src/mesa/main/context.c:check_compatible()
1261 */
1262 if (dri2_config->dri_config[1][0])
1263 dri_config = dri2_config->dri_config[1][0];
1264 else
1265 dri_config = dri2_config->dri_config[0][0];
1266 }
1267 else
1268 dri_config = NULL;
1269
1270 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1271 &num_attribs))
1272 goto cleanup;
1273
1274 if (dri2_dpy->image_driver) {
1275 dri2_ctx->dri_context =
1276 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1277 api,
1278 dri_config,
1279 shared,
1280 num_attribs / 2,
1281 ctx_attribs,
1282 & error,
1283 dri2_ctx);
1284 dri2_create_context_attribs_error(error);
1285 } else if (dri2_dpy->dri2) {
1286 if (dri2_dpy->dri2->base.version >= 3) {
1287 dri2_ctx->dri_context =
1288 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1289 api,
1290 dri_config,
1291 shared,
1292 num_attribs / 2,
1293 ctx_attribs,
1294 & error,
1295 dri2_ctx);
1296 dri2_create_context_attribs_error(error);
1297 } else {
1298 dri2_ctx->dri_context =
1299 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1300 api,
1301 dri_config,
1302 shared,
1303 dri2_ctx);
1304 }
1305 } else {
1306 assert(dri2_dpy->swrast);
1307 if (dri2_dpy->swrast->base.version >= 3) {
1308 dri2_ctx->dri_context =
1309 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1310 api,
1311 dri_config,
1312 shared,
1313 num_attribs / 2,
1314 ctx_attribs,
1315 & error,
1316 dri2_ctx);
1317 dri2_create_context_attribs_error(error);
1318 } else {
1319 dri2_ctx->dri_context =
1320 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1321 api,
1322 dri_config,
1323 shared,
1324 dri2_ctx);
1325 }
1326 }
1327
1328 if (!dri2_ctx->dri_context)
1329 goto cleanup;
1330
1331 return &dri2_ctx->base;
1332
1333 cleanup:
1334 free(dri2_ctx);
1335 return NULL;
1336 }
1337
1338 /**
1339 * Called via eglDestroyContext(), drv->API.DestroyContext().
1340 */
1341 static EGLBoolean
1342 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1343 {
1344 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1345 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1346
1347 if (_eglPutContext(ctx)) {
1348 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1349 free(dri2_ctx);
1350 }
1351
1352 return EGL_TRUE;
1353 }
1354
1355 EGLBoolean
1356 dri2_init_surface(_EGLSurface *surf, _EGLDisplay *disp, EGLint type,
1357 _EGLConfig *conf, const EGLint *attrib_list,
1358 EGLBoolean enable_out_fence, void *native_surface)
1359 {
1360 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1361 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1362
1363 dri2_surf->out_fence_fd = -1;
1364 dri2_surf->enable_out_fence = false;
1365 if (dri2_dpy->fence && dri2_dpy->fence->base.version >= 2 &&
1366 dri2_dpy->fence->get_capabilities &&
1367 (dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen) &
1368 __DRI_FENCE_CAP_NATIVE_FD)) {
1369 dri2_surf->enable_out_fence = enable_out_fence;
1370 }
1371
1372 return _eglInitSurface(surf, disp, type, conf, attrib_list, native_surface);
1373 }
1374
1375 static void
1376 dri2_surface_set_out_fence_fd( _EGLSurface *surf, int fence_fd)
1377 {
1378 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1379
1380 if (dri2_surf->out_fence_fd >= 0)
1381 close(dri2_surf->out_fence_fd);
1382
1383 dri2_surf->out_fence_fd = fence_fd;
1384 }
1385
1386 void
1387 dri2_fini_surface(_EGLSurface *surf)
1388 {
1389 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1390
1391 dri2_surface_set_out_fence_fd(surf, -1);
1392 dri2_surf->enable_out_fence = false;
1393 }
1394
1395 static EGLBoolean
1396 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1397 {
1398 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1399
1400 if (!_eglPutSurface(surf))
1401 return EGL_TRUE;
1402
1403 return dri2_dpy->vtbl->destroy_surface(drv, disp, surf);
1404 }
1405
1406 static void
1407 dri2_surf_update_fence_fd(_EGLContext *ctx,
1408 _EGLDisplay *disp, _EGLSurface *surf)
1409 {
1410 __DRIcontext *dri_ctx = dri2_egl_context(ctx)->dri_context;
1411 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1412 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1413 int fence_fd = -1;
1414 void *fence;
1415
1416 if (!dri2_surf->enable_out_fence)
1417 return;
1418
1419 fence = dri2_dpy->fence->create_fence_fd(dri_ctx, -1);
1420 if (fence) {
1421 fence_fd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
1422 fence);
1423 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, fence);
1424 }
1425 dri2_surface_set_out_fence_fd(surf, fence_fd);
1426 }
1427
1428 EGLBoolean
1429 dri2_create_drawable(struct dri2_egl_display *dri2_dpy,
1430 const __DRIconfig *config,
1431 struct dri2_egl_surface *dri2_surf)
1432 {
1433 __DRIcreateNewDrawableFunc createNewDrawable;
1434 void *loaderPrivate = dri2_surf;
1435
1436 if (dri2_dpy->image_driver)
1437 createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
1438 else if (dri2_dpy->dri2)
1439 createNewDrawable = dri2_dpy->dri2->createNewDrawable;
1440 else if (dri2_dpy->swrast)
1441 createNewDrawable = dri2_dpy->swrast->createNewDrawable;
1442 else
1443 return _eglError(EGL_BAD_ALLOC, "no createNewDrawable");
1444
1445 /* As always gbm is a bit special.. */
1446 #ifdef HAVE_DRM_PLATFORM
1447 if (dri2_surf->gbm_surf)
1448 loaderPrivate = dri2_surf->gbm_surf;
1449 #endif
1450
1451 dri2_surf->dri_drawable = (*createNewDrawable)(dri2_dpy->dri_screen,
1452 config, loaderPrivate);
1453 if (dri2_surf->dri_drawable == NULL)
1454 return _eglError(EGL_BAD_ALLOC, "createNewDrawable");
1455
1456 return EGL_TRUE;
1457 }
1458
1459 /**
1460 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1461 */
1462 static EGLBoolean
1463 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1464 _EGLSurface *rsurf, _EGLContext *ctx)
1465 {
1466 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1467 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1468 _EGLDisplay *old_disp = NULL;
1469 struct dri2_egl_display *old_dri2_dpy = NULL;
1470 _EGLContext *old_ctx;
1471 _EGLSurface *old_dsurf, *old_rsurf;
1472 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1473 __DRIdrawable *ddraw, *rdraw;
1474 __DRIcontext *cctx;
1475 EGLBoolean unbind;
1476
1477 if (!dri2_dpy)
1478 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1479
1480 /* make new bindings */
1481 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1482 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1483 return EGL_FALSE;
1484 }
1485
1486 if (old_ctx) {
1487 old_disp = old_ctx->Resource.Display;
1488 old_dri2_dpy = dri2_egl_display(old_disp);
1489 }
1490
1491 /* flush before context switch */
1492 if (old_ctx)
1493 dri2_gl_flush();
1494
1495 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1496 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1497 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1498
1499 if (old_ctx) {
1500 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1501
1502 if (old_dsurf)
1503 dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
1504
1505 /* Disable shared buffer mode */
1506 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1507 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1508 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, false);
1509 }
1510
1511 dri2_dpy->core->unbindContext(old_cctx);
1512 }
1513
1514 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1515
1516 if (!unbind && !dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1517 /* undo the previous _eglBindContext */
1518 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1519 assert(&dri2_ctx->base == ctx &&
1520 tmp_dsurf == dsurf &&
1521 tmp_rsurf == rsurf);
1522
1523 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1524 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1525 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
1526 }
1527
1528 _eglPutSurface(dsurf);
1529 _eglPutSurface(rsurf);
1530 _eglPutContext(ctx);
1531
1532 _eglPutSurface(old_dsurf);
1533 _eglPutSurface(old_rsurf);
1534 _eglPutContext(old_ctx);
1535
1536 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1537 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1538 * as EGL_SUCCESS.
1539 */
1540 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1541 }
1542
1543 dri2_destroy_surface(drv, disp, old_dsurf);
1544 dri2_destroy_surface(drv, disp, old_rsurf);
1545
1546 if (!unbind)
1547 dri2_dpy->ref_count++;
1548
1549 if (old_ctx) {
1550 dri2_destroy_context(drv, disp, old_ctx);
1551 dri2_display_release(old_disp);
1552 }
1553
1554 if (dsurf && _eglSurfaceHasMutableRenderBuffer(dsurf) &&
1555 dri2_dpy->vtbl->set_shared_buffer_mode) {
1556 /* Always update the shared buffer mode. This is obviously needed when
1557 * the active EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. When
1558 * EGL_RENDER_BUFFER is EGL_BACK_BUFFER, the update protects us in the
1559 * case where external non-EGL API may have changed window's shared
1560 * buffer mode since we last saw it.
1561 */
1562 bool mode = (dsurf->ActiveRenderBuffer == EGL_SINGLE_BUFFER);
1563 dri2_dpy->vtbl->set_shared_buffer_mode(disp, dsurf, mode);
1564 }
1565
1566 return EGL_TRUE;
1567 }
1568
1569 __DRIdrawable *
1570 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1571 {
1572 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1573
1574 return dri2_surf->dri_drawable;
1575 }
1576
1577 /*
1578 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1579 */
1580 static _EGLProc
1581 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1582 {
1583 return _glapi_get_proc_address(procname);
1584 }
1585
1586 static _EGLSurface*
1587 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
1588 _EGLConfig *conf, void *native_window,
1589 const EGLint *attrib_list)
1590 {
1591 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1592 return dri2_dpy->vtbl->create_window_surface(drv, disp, conf, native_window,
1593 attrib_list);
1594 }
1595
1596 static _EGLSurface*
1597 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
1598 _EGLConfig *conf, void *native_pixmap,
1599 const EGLint *attrib_list)
1600 {
1601 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1602 return dri2_dpy->vtbl->create_pixmap_surface(drv, disp, conf, native_pixmap,
1603 attrib_list);
1604 }
1605
1606 static _EGLSurface*
1607 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
1608 _EGLConfig *conf, const EGLint *attrib_list)
1609 {
1610 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1611 return dri2_dpy->vtbl->create_pbuffer_surface(drv, disp, conf, attrib_list);
1612 }
1613
1614 static EGLBoolean
1615 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1616 EGLint interval)
1617 {
1618 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1619 if (!dri2_dpy->vtbl->swap_interval)
1620 return EGL_TRUE;
1621 return dri2_dpy->vtbl->swap_interval(drv, disp, surf, interval);
1622 }
1623
1624 /**
1625 * Asks the client API to flush any rendering to the drawable so that we can
1626 * do our swapbuffers.
1627 */
1628 void
1629 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1630 {
1631 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1632 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1633
1634 if (dri2_dpy->flush) {
1635 if (dri2_dpy->flush->base.version >= 4) {
1636 /* We know there's a current context because:
1637 *
1638 * "If surface is not bound to the calling thread’s current
1639 * context, an EGL_BAD_SURFACE error is generated."
1640 */
1641 _EGLContext *ctx = _eglGetCurrentContext();
1642 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1643
1644 /* From the EGL 1.4 spec (page 52):
1645 *
1646 * "The contents of ancillary buffers are always undefined
1647 * after calling eglSwapBuffers."
1648 */
1649 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1650 dri_drawable,
1651 __DRI2_FLUSH_DRAWABLE |
1652 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1653 __DRI2_THROTTLE_SWAPBUFFER);
1654 } else {
1655 dri2_dpy->flush->flush(dri_drawable);
1656 }
1657 }
1658 }
1659
1660 static EGLBoolean
1661 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1662 {
1663 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1664 _EGLContext *ctx = _eglGetCurrentContext();
1665
1666 if (ctx && surf)
1667 dri2_surf_update_fence_fd(ctx, disp, surf);
1668 return dri2_dpy->vtbl->swap_buffers(drv, disp, surf);
1669 }
1670
1671 static EGLBoolean
1672 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *disp,
1673 _EGLSurface *surf,
1674 const EGLint *rects, EGLint n_rects)
1675 {
1676 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1677 _EGLContext *ctx = _eglGetCurrentContext();
1678
1679 if (ctx && surf)
1680 dri2_surf_update_fence_fd(ctx, disp, surf);
1681 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, disp, surf,
1682 rects, n_rects);
1683 }
1684
1685 static EGLBoolean
1686 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1687 EGLint numRects, const EGLint *rects)
1688 {
1689 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1690 return dri2_dpy->vtbl->swap_buffers_region(drv, disp, surf, numRects, rects);
1691 }
1692
1693 static EGLBoolean
1694 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1695 EGLint *rects, EGLint n_rects)
1696 {
1697 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1698 return dri2_dpy->vtbl->set_damage_region(drv, disp, surf, rects, n_rects);
1699 }
1700
1701 static EGLBoolean
1702 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1703 EGLint x, EGLint y, EGLint width, EGLint height)
1704 {
1705 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1706 return dri2_dpy->vtbl->post_sub_buffer(drv, disp, surf, x, y, width, height);
1707 }
1708
1709 static EGLBoolean
1710 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1711 void *native_pixmap_target)
1712 {
1713 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1714 return dri2_dpy->vtbl->copy_buffers(drv, disp, surf, native_pixmap_target);
1715 }
1716
1717 static EGLint
1718 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1719 {
1720 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1721 return dri2_dpy->vtbl->query_buffer_age(drv, disp, surf);
1722 }
1723
1724 static EGLBoolean
1725 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1726 {
1727 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1728 _EGLSurface *surf = ctx->DrawSurface;
1729 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1730
1731 (void) drv;
1732
1733 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1734 * we need to copy fake to real here.*/
1735
1736 if (dri2_dpy->flush != NULL)
1737 dri2_dpy->flush->flush(dri_drawable);
1738
1739 return EGL_TRUE;
1740 }
1741
1742 static EGLBoolean
1743 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1744 {
1745 (void) drv;
1746 (void) disp;
1747
1748 if (engine != EGL_CORE_NATIVE_ENGINE)
1749 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1750 /* glXWaitX(); */
1751
1752 return EGL_TRUE;
1753 }
1754
1755 static EGLBoolean
1756 dri2_bind_tex_image(_EGLDriver *drv,
1757 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1758 {
1759 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1760 struct dri2_egl_context *dri2_ctx;
1761 _EGLContext *ctx;
1762 GLint format, target;
1763 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1764
1765 ctx = _eglGetCurrentContext();
1766 dri2_ctx = dri2_egl_context(ctx);
1767
1768 if (!_eglBindTexImage(drv, disp, surf, buffer))
1769 return EGL_FALSE;
1770
1771 switch (surf->TextureFormat) {
1772 case EGL_TEXTURE_RGB:
1773 format = __DRI_TEXTURE_FORMAT_RGB;
1774 break;
1775 case EGL_TEXTURE_RGBA:
1776 format = __DRI_TEXTURE_FORMAT_RGBA;
1777 break;
1778 default:
1779 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1780 format = __DRI_TEXTURE_FORMAT_RGBA;
1781 }
1782
1783 switch (surf->TextureTarget) {
1784 case EGL_TEXTURE_2D:
1785 target = GL_TEXTURE_2D;
1786 break;
1787 default:
1788 target = GL_TEXTURE_2D;
1789 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1790 }
1791
1792 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1793 target, format,
1794 dri_drawable);
1795
1796 return EGL_TRUE;
1797 }
1798
1799 static EGLBoolean
1800 dri2_release_tex_image(_EGLDriver *drv,
1801 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1802 {
1803 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1804 struct dri2_egl_context *dri2_ctx;
1805 _EGLContext *ctx;
1806 GLint target;
1807 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1808
1809 ctx = _eglGetCurrentContext();
1810 dri2_ctx = dri2_egl_context(ctx);
1811
1812 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1813 return EGL_FALSE;
1814
1815 switch (surf->TextureTarget) {
1816 case EGL_TEXTURE_2D:
1817 target = GL_TEXTURE_2D;
1818 break;
1819 default:
1820 assert(!"missing texture target");
1821 }
1822
1823 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1824 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1825 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1826 target, dri_drawable);
1827 }
1828
1829 return EGL_TRUE;
1830 }
1831
1832 static _EGLImage*
1833 dri2_create_image(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx,
1834 EGLenum target, EGLClientBuffer buffer,
1835 const EGLint *attr_list)
1836 {
1837 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1838 return dri2_dpy->vtbl->create_image(drv, disp, ctx, target, buffer,
1839 attr_list);
1840 }
1841
1842 static _EGLImage *
1843 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1844 {
1845 struct dri2_egl_image *dri2_img;
1846
1847 if (dri_image == NULL) {
1848 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1849 return NULL;
1850 }
1851
1852 dri2_img = malloc(sizeof *dri2_img);
1853 if (!dri2_img) {
1854 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1855 return NULL;
1856 }
1857
1858 _eglInitImage(&dri2_img->base, disp);
1859
1860 dri2_img->dri_image = dri_image;
1861
1862 return &dri2_img->base;
1863 }
1864
1865 /**
1866 * Translate a DRI Image extension error code into an EGL error code.
1867 */
1868 static EGLint
1869 egl_error_from_dri_image_error(int dri_error)
1870 {
1871 switch (dri_error) {
1872 case __DRI_IMAGE_ERROR_SUCCESS:
1873 return EGL_SUCCESS;
1874 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1875 return EGL_BAD_ALLOC;
1876 case __DRI_IMAGE_ERROR_BAD_MATCH:
1877 return EGL_BAD_MATCH;
1878 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1879 return EGL_BAD_PARAMETER;
1880 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1881 return EGL_BAD_ACCESS;
1882 default:
1883 assert(!"unknown dri_error code");
1884 return EGL_BAD_ALLOC;
1885 }
1886 }
1887
1888 static _EGLImage *
1889 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1890 EGLClientBuffer buffer,
1891 const EGLint *attr_list)
1892 {
1893 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1894 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1895 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1896 __DRIimage *dri_image;
1897
1898 if (renderbuffer == 0) {
1899 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1900 return EGL_NO_IMAGE_KHR;
1901 }
1902
1903 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
1904 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1905 return EGL_NO_IMAGE_KHR;
1906 }
1907
1908 if (dri2_dpy->image->base.version >= 17 &&
1909 dri2_dpy->image->createImageFromRenderbuffer2) {
1910 unsigned error = ~0;
1911
1912 dri_image = dri2_dpy->image->createImageFromRenderbuffer2(
1913 dri2_ctx->dri_context, renderbuffer, NULL, &error);
1914
1915 assert(!!dri_image == (error == __DRI_IMAGE_ERROR_SUCCESS));
1916
1917 if (!dri_image) {
1918 _eglError(egl_error_from_dri_image_error(error), "dri2_create_image_khr");
1919 return EGL_NO_IMAGE_KHR;
1920 }
1921 } else {
1922 dri_image = dri2_dpy->image->createImageFromRenderbuffer(
1923 dri2_ctx->dri_context, renderbuffer, NULL);
1924 if (!dri_image) {
1925 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1926 return EGL_NO_IMAGE_KHR;
1927 }
1928 }
1929
1930 return dri2_create_image_from_dri(disp, dri_image);
1931 }
1932
1933 #ifdef HAVE_WAYLAND_PLATFORM
1934
1935 /* This structure describes how a wl_buffer maps to one or more
1936 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1937 * offsets and strides of the planes in the buffer. This table maps a
1938 * wl_drm format code to a description of the planes in the buffer
1939 * that lets us create a __DRIimage for each of the planes. */
1940
1941 static const struct wl_drm_components_descriptor {
1942 uint32_t dri_components;
1943 EGLint components;
1944 int nplanes;
1945 } wl_drm_components[] = {
1946 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1947 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1948 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1949 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1950 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1951 };
1952
1953 static _EGLImage *
1954 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1955 EGLClientBuffer _buffer,
1956 const EGLint *attr_list)
1957 {
1958 struct wl_drm_buffer *buffer;
1959 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1960 const struct wl_drm_components_descriptor *f;
1961 __DRIimage *dri_image;
1962 _EGLImageAttribs attrs;
1963 int32_t plane;
1964
1965 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1966 (struct wl_resource *) _buffer);
1967 if (!buffer)
1968 return NULL;
1969
1970 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1971 return NULL;
1972
1973 plane = attrs.PlaneWL;
1974 f = buffer->driver_format;
1975 if (plane < 0 || plane >= f->nplanes) {
1976 _eglError(EGL_BAD_PARAMETER,
1977 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1978 return NULL;
1979 }
1980
1981 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1982 if (dri_image == NULL && plane == 0)
1983 dri_image = dri2_dpy->image->dupImage(buffer->driver_buffer, NULL);
1984 if (dri_image == NULL) {
1985 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1986 return NULL;
1987 }
1988
1989 return dri2_create_image_from_dri(disp, dri_image);
1990 }
1991 #endif
1992
1993 static EGLBoolean
1994 dri2_get_sync_values_chromium(_EGLDisplay *disp, _EGLSurface *surf,
1995 EGLuint64KHR *ust, EGLuint64KHR *msc,
1996 EGLuint64KHR *sbc)
1997 {
1998 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1999 return dri2_dpy->vtbl->get_sync_values(disp, surf, ust, msc, sbc);
2000 }
2001
2002 /**
2003 * Set the error code after a call to
2004 * dri2_egl_image::dri_image::createImageFromTexture.
2005 */
2006 static void
2007 dri2_create_image_khr_texture_error(int dri_error)
2008 {
2009 EGLint egl_error = egl_error_from_dri_image_error(dri_error);
2010
2011 if (egl_error != EGL_SUCCESS)
2012 _eglError(egl_error, "dri2_create_image_khr_texture");
2013 }
2014
2015 static _EGLImage *
2016 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
2017 EGLenum target,
2018 EGLClientBuffer buffer,
2019 const EGLint *attr_list)
2020 {
2021 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2022 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2023 struct dri2_egl_image *dri2_img;
2024 GLuint texture = (GLuint) (uintptr_t) buffer;
2025 _EGLImageAttribs attrs;
2026 GLuint depth;
2027 GLenum gl_target;
2028 unsigned error;
2029
2030 if (texture == 0) {
2031 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2032 return EGL_NO_IMAGE_KHR;
2033 }
2034
2035 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2036 return EGL_NO_IMAGE_KHR;
2037
2038 switch (target) {
2039 case EGL_GL_TEXTURE_2D_KHR:
2040 if (!disp->Extensions.KHR_gl_texture_2D_image) {
2041 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2042 return EGL_NO_IMAGE_KHR;
2043 }
2044 depth = 0;
2045 gl_target = GL_TEXTURE_2D;
2046 break;
2047 case EGL_GL_TEXTURE_3D_KHR:
2048 if (!disp->Extensions.KHR_gl_texture_3D_image) {
2049 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2050 return EGL_NO_IMAGE_KHR;
2051 }
2052
2053 depth = attrs.GLTextureZOffset;
2054 gl_target = GL_TEXTURE_3D;
2055 break;
2056 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2057 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2058 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2059 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2060 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2061 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2062 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
2063 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2064 return EGL_NO_IMAGE_KHR;
2065 }
2066
2067 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
2068 gl_target = GL_TEXTURE_CUBE_MAP;
2069 break;
2070 default:
2071 unreachable("Unexpected target in dri2_create_image_khr_texture()");
2072 return EGL_NO_IMAGE_KHR;
2073 }
2074
2075 dri2_img = malloc(sizeof *dri2_img);
2076 if (!dri2_img) {
2077 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2078 return EGL_NO_IMAGE_KHR;
2079 }
2080
2081 _eglInitImage(&dri2_img->base, disp);
2082
2083 dri2_img->dri_image =
2084 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
2085 gl_target,
2086 texture,
2087 depth,
2088 attrs.GLTextureLevel,
2089 &error,
2090 dri2_img);
2091 dri2_create_image_khr_texture_error(error);
2092
2093 if (!dri2_img->dri_image) {
2094 free(dri2_img);
2095 return EGL_NO_IMAGE_KHR;
2096 }
2097 return &dri2_img->base;
2098 }
2099
2100 static EGLBoolean
2101 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2102 EGLint attribute, EGLint *value)
2103 {
2104 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2105 if (!dri2_dpy->vtbl->query_surface)
2106 return _eglQuerySurface(drv, disp, surf, attribute, value);
2107 return dri2_dpy->vtbl->query_surface(drv, disp, surf, attribute, value);
2108 }
2109
2110 static struct wl_buffer*
2111 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *disp,
2112 _EGLImage *img)
2113 {
2114 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2115 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, disp, img);
2116 }
2117
2118 #ifdef HAVE_LIBDRM
2119 static _EGLImage *
2120 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2121 EGLClientBuffer buffer, const EGLint *attr_list)
2122 {
2123 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2124 EGLint format, name, pitch;
2125 _EGLImageAttribs attrs;
2126 __DRIimage *dri_image;
2127
2128 name = (EGLint) (uintptr_t) buffer;
2129
2130 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2131 return NULL;
2132
2133 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2134 attrs.DRMBufferStrideMESA <= 0) {
2135 _eglError(EGL_BAD_PARAMETER,
2136 "bad width, height or stride");
2137 return NULL;
2138 }
2139
2140 switch (attrs.DRMBufferFormatMESA) {
2141 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2142 format = __DRI_IMAGE_FORMAT_ARGB8888;
2143 pitch = attrs.DRMBufferStrideMESA;
2144 break;
2145 default:
2146 _eglError(EGL_BAD_PARAMETER,
2147 "dri2_create_image_khr: unsupported pixmap depth");
2148 return NULL;
2149 }
2150
2151 dri_image =
2152 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2153 attrs.Width,
2154 attrs.Height,
2155 format,
2156 name,
2157 pitch,
2158 NULL);
2159
2160 return dri2_create_image_from_dri(disp, dri_image);
2161 }
2162
2163 static EGLBoolean
2164 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2165 {
2166 /**
2167 * The spec says:
2168 *
2169 * "Required attributes and their values are as follows:
2170 *
2171 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2172 *
2173 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2174 * by drm_fourcc.h and used as the pixel_format parameter of the
2175 * drm_mode_fb_cmd2 ioctl."
2176 *
2177 * and
2178 *
2179 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2180 * incomplete, EGL_BAD_PARAMETER is generated."
2181 */
2182 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2183 !attrs->DMABufFourCC.IsPresent)
2184 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2185
2186 /**
2187 * Also:
2188 *
2189 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2190 * specified for a plane's pitch or offset isn't supported by EGL,
2191 * EGL_BAD_ACCESS is generated."
2192 */
2193 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2194 if (attrs->DMABufPlanePitches[i].IsPresent &&
2195 attrs->DMABufPlanePitches[i].Value <= 0)
2196 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2197 }
2198
2199 /**
2200 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2201 * attribute values may be given.
2202 *
2203 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2204 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2205 */
2206 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2207 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2208 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2209 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2210 }
2211
2212 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2213 * mandate it, we only accept the same modifier across all planes. */
2214 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2215 if (attrs->DMABufPlaneFds[i].IsPresent) {
2216 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2217 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2218 (attrs->DMABufPlaneModifiersLo[0].Value !=
2219 attrs->DMABufPlaneModifiersLo[i].Value) ||
2220 (attrs->DMABufPlaneModifiersHi[0].Value !=
2221 attrs->DMABufPlaneModifiersHi[i].Value))
2222 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2223 }
2224 }
2225
2226 return EGL_TRUE;
2227 }
2228
2229 /* Returns the total number of planes for the format or zero if it isn't a
2230 * valid fourcc format.
2231 */
2232 static unsigned
2233 dri2_num_fourcc_format_planes(EGLint format)
2234 {
2235 switch (format) {
2236 case DRM_FORMAT_R8:
2237 case DRM_FORMAT_RG88:
2238 case DRM_FORMAT_GR88:
2239 case DRM_FORMAT_R16:
2240 case DRM_FORMAT_GR1616:
2241 case DRM_FORMAT_RGB332:
2242 case DRM_FORMAT_BGR233:
2243 case DRM_FORMAT_XRGB4444:
2244 case DRM_FORMAT_XBGR4444:
2245 case DRM_FORMAT_RGBX4444:
2246 case DRM_FORMAT_BGRX4444:
2247 case DRM_FORMAT_ARGB4444:
2248 case DRM_FORMAT_ABGR4444:
2249 case DRM_FORMAT_RGBA4444:
2250 case DRM_FORMAT_BGRA4444:
2251 case DRM_FORMAT_XRGB1555:
2252 case DRM_FORMAT_XBGR1555:
2253 case DRM_FORMAT_RGBX5551:
2254 case DRM_FORMAT_BGRX5551:
2255 case DRM_FORMAT_ARGB1555:
2256 case DRM_FORMAT_ABGR1555:
2257 case DRM_FORMAT_RGBA5551:
2258 case DRM_FORMAT_BGRA5551:
2259 case DRM_FORMAT_RGB565:
2260 case DRM_FORMAT_BGR565:
2261 case DRM_FORMAT_RGB888:
2262 case DRM_FORMAT_BGR888:
2263 case DRM_FORMAT_XRGB8888:
2264 case DRM_FORMAT_XBGR8888:
2265 case DRM_FORMAT_RGBX8888:
2266 case DRM_FORMAT_BGRX8888:
2267 case DRM_FORMAT_ARGB8888:
2268 case DRM_FORMAT_ABGR8888:
2269 case DRM_FORMAT_RGBA8888:
2270 case DRM_FORMAT_BGRA8888:
2271 case DRM_FORMAT_XRGB2101010:
2272 case DRM_FORMAT_XBGR2101010:
2273 case DRM_FORMAT_RGBX1010102:
2274 case DRM_FORMAT_BGRX1010102:
2275 case DRM_FORMAT_ARGB2101010:
2276 case DRM_FORMAT_ABGR2101010:
2277 case DRM_FORMAT_RGBA1010102:
2278 case DRM_FORMAT_BGRA1010102:
2279 case DRM_FORMAT_YUYV:
2280 case DRM_FORMAT_YVYU:
2281 case DRM_FORMAT_UYVY:
2282 case DRM_FORMAT_VYUY:
2283 case DRM_FORMAT_AYUV:
2284 case DRM_FORMAT_XYUV8888:
2285 return 1;
2286
2287 case DRM_FORMAT_NV12:
2288 case DRM_FORMAT_NV21:
2289 case DRM_FORMAT_NV16:
2290 case DRM_FORMAT_NV61:
2291 case DRM_FORMAT_P010:
2292 case DRM_FORMAT_P012:
2293 case DRM_FORMAT_P016:
2294 return 2;
2295
2296 case DRM_FORMAT_YUV410:
2297 case DRM_FORMAT_YVU410:
2298 case DRM_FORMAT_YUV411:
2299 case DRM_FORMAT_YVU411:
2300 case DRM_FORMAT_YUV420:
2301 case DRM_FORMAT_YVU420:
2302 case DRM_FORMAT_YUV422:
2303 case DRM_FORMAT_YVU422:
2304 case DRM_FORMAT_YUV444:
2305 case DRM_FORMAT_YVU444:
2306 return 3;
2307
2308 default:
2309 return 0;
2310 }
2311 }
2312
2313 /* Returns the total number of file descriptors. Zero indicates an error. */
2314 static unsigned
2315 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2316 {
2317 unsigned plane_n = dri2_num_fourcc_format_planes(attrs->DMABufFourCC.Value);
2318 if (plane_n == 0) {
2319 _eglError(EGL_BAD_MATCH, "unknown drm fourcc format");
2320 return 0;
2321 }
2322
2323 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2324 /**
2325 * The modifiers extension spec says:
2326 *
2327 * "Modifiers may modify any attribute of a buffer import, including
2328 * but not limited to adding extra planes to a format which
2329 * otherwise does not have those planes. As an example, a modifier
2330 * may add a plane for an external compression buffer to a
2331 * single-plane format. The exact meaning and effect of any
2332 * modifier is canonically defined by drm_fourcc.h, not as part of
2333 * this extension."
2334 */
2335 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2336 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2337 plane_n = i + 1;
2338 }
2339 }
2340
2341 /**
2342 * The spec says:
2343 *
2344 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2345 * incomplete, EGL_BAD_PARAMETER is generated."
2346 */
2347 for (unsigned i = 0; i < plane_n; ++i) {
2348 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2349 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2350 !attrs->DMABufPlanePitches[i].IsPresent) {
2351 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2352 return 0;
2353 }
2354 }
2355
2356 /**
2357 * The spec also says:
2358 *
2359 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2360 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2361 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2362 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2363 */
2364 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2365 if (attrs->DMABufPlaneFds[i].IsPresent ||
2366 attrs->DMABufPlaneOffsets[i].IsPresent ||
2367 attrs->DMABufPlanePitches[i].IsPresent) {
2368 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2369 return 0;
2370 }
2371 }
2372
2373 return plane_n;
2374 }
2375
2376 static EGLBoolean
2377 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2378 EGLint max, EGLint *formats, EGLint *count)
2379 {
2380 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2381 if (max < 0 || (max > 0 && formats == NULL))
2382 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2383
2384 if (dri2_dpy->image->base.version < 15 ||
2385 dri2_dpy->image->queryDmaBufFormats == NULL)
2386 return EGL_FALSE;
2387
2388 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2389 formats, count))
2390 return EGL_FALSE;
2391
2392 if (max > 0) {
2393 /* Assert that all of the formats returned are actually fourcc formats.
2394 * Some day, if we want the internal interface function to be able to
2395 * return the fake fourcc formats defined in dri_interface.h, we'll have
2396 * to do something more clever here to pair the list down to just real
2397 * fourcc formats so that we don't leak the fake internal ones.
2398 */
2399 for (int i = 0; i < *count; i++) {
2400 assert(dri2_num_fourcc_format_planes(formats[i]) > 0);
2401 }
2402 }
2403
2404 return EGL_TRUE;
2405 }
2406
2407 static EGLBoolean
2408 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2409 EGLint max, EGLuint64KHR *modifiers,
2410 EGLBoolean *external_only, EGLint *count)
2411 {
2412 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2413
2414 if (dri2_num_fourcc_format_planes(format) == 0)
2415 return _eglError(EGL_BAD_PARAMETER, "invalid fourcc format");
2416
2417 if (max < 0)
2418 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2419
2420 if (max > 0 && modifiers == NULL)
2421 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2422
2423 if (dri2_dpy->image->base.version < 15 ||
2424 dri2_dpy->image->queryDmaBufModifiers == NULL)
2425 return EGL_FALSE;
2426
2427 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2428 max, modifiers,
2429 (unsigned int *) external_only,
2430 count) == false)
2431 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2432
2433 return EGL_TRUE;
2434 }
2435
2436 /**
2437 * The spec says:
2438 *
2439 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2440 * EGL will take a reference to the dma_buf(s) which it will release at any
2441 * time while the EGLDisplay is initialized. It is the responsibility of the
2442 * application to close the dma_buf file descriptors."
2443 *
2444 * Therefore we must never close or otherwise modify the file descriptors.
2445 */
2446 _EGLImage *
2447 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2448 EGLClientBuffer buffer, const EGLint *attr_list)
2449 {
2450 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2451 _EGLImage *res;
2452 _EGLImageAttribs attrs;
2453 __DRIimage *dri_image;
2454 unsigned num_fds;
2455 int fds[DMA_BUF_MAX_PLANES];
2456 int pitches[DMA_BUF_MAX_PLANES];
2457 int offsets[DMA_BUF_MAX_PLANES];
2458 uint64_t modifier;
2459 bool has_modifier = false;
2460 unsigned error;
2461
2462 /**
2463 * The spec says:
2464 *
2465 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2466 * error EGL_BAD_PARAMETER is generated."
2467 */
2468 if (buffer != NULL) {
2469 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2470 return NULL;
2471 }
2472
2473 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2474 return NULL;
2475
2476 if (!dri2_check_dma_buf_attribs(&attrs))
2477 return NULL;
2478
2479 num_fds = dri2_check_dma_buf_format(&attrs);
2480 if (!num_fds)
2481 return NULL;
2482
2483 for (unsigned i = 0; i < num_fds; ++i) {
2484 fds[i] = attrs.DMABufPlaneFds[i].Value;
2485 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2486 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2487 }
2488
2489 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2490 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2491 * attrs.DMABufPlaneModifiersHi[0] */
2492 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2493 modifier = combine_u32_into_u64(attrs.DMABufPlaneModifiersHi[0].Value,
2494 attrs.DMABufPlaneModifiersLo[0].Value);
2495 has_modifier = true;
2496 }
2497
2498 if (has_modifier) {
2499 if (dri2_dpy->image->base.version < 15 ||
2500 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2501 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2502 return EGL_NO_IMAGE_KHR;
2503 }
2504 dri_image =
2505 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2506 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2507 modifier, fds, num_fds, pitches, offsets,
2508 attrs.DMABufYuvColorSpaceHint.Value,
2509 attrs.DMABufSampleRangeHint.Value,
2510 attrs.DMABufChromaHorizontalSiting.Value,
2511 attrs.DMABufChromaVerticalSiting.Value,
2512 &error,
2513 NULL);
2514 }
2515 else {
2516 dri_image =
2517 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2518 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2519 fds, num_fds, pitches, offsets,
2520 attrs.DMABufYuvColorSpaceHint.Value,
2521 attrs.DMABufSampleRangeHint.Value,
2522 attrs.DMABufChromaHorizontalSiting.Value,
2523 attrs.DMABufChromaVerticalSiting.Value,
2524 &error,
2525 NULL);
2526 }
2527 dri2_create_image_khr_texture_error(error);
2528
2529 if (!dri_image)
2530 return EGL_NO_IMAGE_KHR;
2531
2532 res = dri2_create_image_from_dri(disp, dri_image);
2533
2534 return res;
2535 }
2536 static _EGLImage *
2537 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2538 const EGLint *attr_list)
2539 {
2540 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2541 struct dri2_egl_image *dri2_img;
2542 _EGLImageAttribs attrs;
2543 unsigned int dri_use, valid_mask;
2544 int format;
2545
2546 (void) drv;
2547
2548 if (!attr_list) {
2549 _eglError(EGL_BAD_PARAMETER, __func__);
2550 return EGL_NO_IMAGE_KHR;
2551 }
2552
2553 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2554 return EGL_NO_IMAGE_KHR;
2555
2556 if (attrs.Width <= 0 || attrs.Height <= 0) {
2557 _eglError(EGL_BAD_PARAMETER, __func__);
2558 return EGL_NO_IMAGE_KHR;
2559 }
2560
2561 switch (attrs.DRMBufferFormatMESA) {
2562 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2563 format = __DRI_IMAGE_FORMAT_ARGB8888;
2564 break;
2565 default:
2566 _eglError(EGL_BAD_PARAMETER, __func__);
2567 return EGL_NO_IMAGE_KHR;
2568 }
2569
2570 valid_mask =
2571 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2572 EGL_DRM_BUFFER_USE_SHARE_MESA |
2573 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2574 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2575 _eglError(EGL_BAD_PARAMETER, __func__);
2576 return EGL_NO_IMAGE_KHR;
2577 }
2578
2579 dri_use = 0;
2580 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2581 dri_use |= __DRI_IMAGE_USE_SHARE;
2582 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2583 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2584 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2585 dri_use |= __DRI_IMAGE_USE_CURSOR;
2586
2587 dri2_img = malloc(sizeof *dri2_img);
2588 if (!dri2_img) {
2589 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2590 return EGL_NO_IMAGE_KHR;
2591 }
2592
2593 _eglInitImage(&dri2_img->base, disp);
2594
2595 dri2_img->dri_image =
2596 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2597 attrs.Width, attrs.Height,
2598 format, dri_use, dri2_img);
2599 if (dri2_img->dri_image == NULL) {
2600 free(dri2_img);
2601 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2602 return EGL_NO_IMAGE_KHR;
2603 }
2604
2605 return &dri2_img->base;
2606 }
2607
2608 static EGLBoolean
2609 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2610 EGLint *name, EGLint *handle, EGLint *stride)
2611 {
2612 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2613 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2614
2615 (void) drv;
2616
2617 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2618 __DRI_IMAGE_ATTRIB_NAME, name))
2619 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2620
2621 if (handle)
2622 dri2_dpy->image->queryImage(dri2_img->dri_image,
2623 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2624
2625 if (stride)
2626 dri2_dpy->image->queryImage(dri2_img->dri_image,
2627 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2628
2629 return EGL_TRUE;
2630 }
2631
2632 /**
2633 * Checks if we can support EGL_MESA_image_dma_buf_export on this image.
2634
2635 * The spec provides a boolean return for the driver to reject exporting for
2636 * basically any reason, but doesn't specify any particular error cases. For
2637 * now, we just fail if we don't have a DRM fourcc for the format.
2638 */
2639 static bool
2640 dri2_can_export_dma_buf_image(_EGLDisplay *disp, _EGLImage *img)
2641 {
2642 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2643 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2644 EGLint fourcc;
2645
2646 if (!dri2_dpy->image->queryImage(dri2_img->dri_image,
2647 __DRI_IMAGE_ATTRIB_FOURCC, &fourcc)) {
2648 return false;
2649 }
2650
2651 return true;
2652 }
2653
2654 static EGLBoolean
2655 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2656 _EGLImage *img,
2657 EGLint *fourcc, EGLint *nplanes,
2658 EGLuint64KHR *modifiers)
2659 {
2660 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2661 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2662
2663 (void) drv;
2664
2665 if (!dri2_can_export_dma_buf_image(disp, img))
2666 return EGL_FALSE;
2667
2668 if (nplanes)
2669 dri2_dpy->image->queryImage(dri2_img->dri_image,
2670 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2671 if (fourcc)
2672 dri2_dpy->image->queryImage(dri2_img->dri_image,
2673 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2674
2675 if (modifiers)
2676 *modifiers = 0;
2677
2678 return EGL_TRUE;
2679 }
2680
2681 static EGLBoolean
2682 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2683 int *fds, EGLint *strides, EGLint *offsets)
2684 {
2685 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2686 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2687 EGLint nplanes;
2688
2689 (void) drv;
2690
2691 if (!dri2_can_export_dma_buf_image(disp, img))
2692 return EGL_FALSE;
2693
2694 /* EGL_MESA_image_dma_buf_export spec says:
2695 * "If the number of fds is less than the number of planes, then
2696 * subsequent fd slots should contain -1."
2697 */
2698 if (fds) {
2699 /* Query nplanes so that we know how big the given array is. */
2700 dri2_dpy->image->queryImage(dri2_img->dri_image,
2701 __DRI_IMAGE_ATTRIB_NUM_PLANES, &nplanes);
2702 memset(fds, -1, nplanes * sizeof(int));
2703 }
2704
2705 /* rework later to provide multiple fds/strides/offsets */
2706 if (fds)
2707 dri2_dpy->image->queryImage(dri2_img->dri_image,
2708 __DRI_IMAGE_ATTRIB_FD, fds);
2709
2710 if (strides)
2711 dri2_dpy->image->queryImage(dri2_img->dri_image,
2712 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2713
2714 if (offsets) {
2715 int img_offset;
2716 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2717 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2718 if (ret)
2719 offsets[0] = img_offset;
2720 else
2721 offsets[0] = 0;
2722 }
2723
2724 return EGL_TRUE;
2725 }
2726
2727 #endif
2728
2729 _EGLImage *
2730 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2731 _EGLContext *ctx, EGLenum target,
2732 EGLClientBuffer buffer, const EGLint *attr_list)
2733 {
2734 (void) drv;
2735
2736 switch (target) {
2737 case EGL_GL_TEXTURE_2D_KHR:
2738 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2739 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2740 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2741 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2742 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2743 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2744 case EGL_GL_TEXTURE_3D_KHR:
2745 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2746 case EGL_GL_RENDERBUFFER_KHR:
2747 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2748 #ifdef HAVE_LIBDRM
2749 case EGL_DRM_BUFFER_MESA:
2750 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2751 case EGL_LINUX_DMA_BUF_EXT:
2752 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2753 #endif
2754 #ifdef HAVE_WAYLAND_PLATFORM
2755 case EGL_WAYLAND_BUFFER_WL:
2756 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2757 #endif
2758 default:
2759 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2760 return EGL_NO_IMAGE_KHR;
2761 }
2762 }
2763
2764 static EGLBoolean
2765 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2766 {
2767 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2768 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2769
2770 (void) drv;
2771
2772 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2773 free(dri2_img);
2774
2775 return EGL_TRUE;
2776 }
2777
2778 #ifdef HAVE_WAYLAND_PLATFORM
2779
2780 static void
2781 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2782 struct wl_drm_buffer *buffer)
2783 {
2784 _EGLDisplay *disp = user_data;
2785 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2786 __DRIimage *img;
2787 int dri_components = 0;
2788
2789 if (fd == -1)
2790 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2791 buffer->width,
2792 buffer->height,
2793 buffer->format,
2794 (int*)&name, 1,
2795 buffer->stride,
2796 buffer->offset,
2797 NULL);
2798 else
2799 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2800 buffer->width,
2801 buffer->height,
2802 buffer->format,
2803 &fd, 1,
2804 buffer->stride,
2805 buffer->offset,
2806 NULL);
2807
2808 if (img == NULL)
2809 return;
2810
2811 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2812
2813 buffer->driver_format = NULL;
2814 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2815 if (wl_drm_components[i].dri_components == dri_components)
2816 buffer->driver_format = &wl_drm_components[i];
2817
2818 if (buffer->driver_format == NULL)
2819 dri2_dpy->image->destroyImage(img);
2820 else
2821 buffer->driver_buffer = img;
2822 }
2823
2824 static void
2825 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2826 {
2827 _EGLDisplay *disp = user_data;
2828 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2829
2830 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2831 }
2832
2833 static EGLBoolean
2834 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2835 struct wl_display *wl_dpy)
2836 {
2837 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2838 const struct wayland_drm_callbacks wl_drm_callbacks = {
2839 .authenticate = (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate,
2840 .reference_buffer = dri2_wl_reference_buffer,
2841 .release_buffer = dri2_wl_release_buffer,
2842 .is_format_supported = dri2_wl_is_format_supported
2843 };
2844 int flags = 0;
2845 uint64_t cap;
2846
2847 (void) drv;
2848
2849 if (dri2_dpy->wl_server_drm)
2850 return EGL_FALSE;
2851
2852 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2853 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2854 dri2_dpy->image->base.version >= 7 &&
2855 dri2_dpy->image->createImageFromFds != NULL)
2856 flags |= WAYLAND_DRM_PRIME;
2857
2858 dri2_dpy->wl_server_drm =
2859 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2860 &wl_drm_callbacks, disp, flags);
2861
2862 if (!dri2_dpy->wl_server_drm)
2863 return EGL_FALSE;
2864
2865 #ifdef HAVE_DRM_PLATFORM
2866 /* We have to share the wl_drm instance with gbm, so gbm can convert
2867 * wl_buffers to gbm bos. */
2868 if (dri2_dpy->gbm_dri)
2869 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2870 #endif
2871
2872 return EGL_TRUE;
2873 }
2874
2875 static EGLBoolean
2876 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2877 struct wl_display *wl_dpy)
2878 {
2879 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2880
2881 (void) drv;
2882
2883 if (!dri2_dpy->wl_server_drm)
2884 return EGL_FALSE;
2885
2886 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2887 dri2_dpy->wl_server_drm = NULL;
2888
2889 return EGL_TRUE;
2890 }
2891
2892 static EGLBoolean
2893 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2894 struct wl_resource *buffer_resource,
2895 EGLint attribute, EGLint *value)
2896 {
2897 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2898 struct wl_drm_buffer *buffer;
2899 const struct wl_drm_components_descriptor *format;
2900
2901 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2902 if (!buffer)
2903 return EGL_FALSE;
2904
2905 format = buffer->driver_format;
2906 switch (attribute) {
2907 case EGL_TEXTURE_FORMAT:
2908 *value = format->components;
2909 return EGL_TRUE;
2910 case EGL_WIDTH:
2911 *value = buffer->width;
2912 return EGL_TRUE;
2913 case EGL_HEIGHT:
2914 *value = buffer->height;
2915 return EGL_TRUE;
2916 }
2917
2918 return EGL_FALSE;
2919 }
2920 #endif
2921
2922 static void
2923 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2924 {
2925 p_atomic_inc(&sync->refcount);
2926 }
2927
2928 static void
2929 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2930 struct dri2_egl_sync *dri2_sync)
2931 {
2932 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2933 switch (dri2_sync->base.Type) {
2934 case EGL_SYNC_REUSABLE_KHR:
2935 cnd_destroy(&dri2_sync->cond);
2936 break;
2937 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2938 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2939 close(dri2_sync->base.SyncFd);
2940 break;
2941 default:
2942 break;
2943 }
2944
2945 if (dri2_sync->fence)
2946 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2947
2948 free(dri2_sync);
2949 }
2950 }
2951
2952 static _EGLSync *
2953 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *disp,
2954 EGLenum type, const EGLAttrib *attrib_list)
2955 {
2956 _EGLContext *ctx = _eglGetCurrentContext();
2957 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2958 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2959 struct dri2_egl_sync *dri2_sync;
2960 EGLint ret;
2961 pthread_condattr_t attr;
2962
2963 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2964 if (!dri2_sync) {
2965 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2966 return NULL;
2967 }
2968
2969 if (!_eglInitSync(&dri2_sync->base, disp, type, attrib_list)) {
2970 free(dri2_sync);
2971 return NULL;
2972 }
2973
2974 switch (type) {
2975 case EGL_SYNC_FENCE_KHR:
2976 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2977 if (!dri2_sync->fence) {
2978 /* Why did it fail? DRI doesn't return an error code, so we emit
2979 * a generic EGL error that doesn't communicate user error.
2980 */
2981 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2982 free(dri2_sync);
2983 return NULL;
2984 }
2985 break;
2986
2987 case EGL_SYNC_CL_EVENT_KHR:
2988 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2989 dri2_dpy->dri_screen,
2990 dri2_sync->base.CLEvent);
2991 /* this can only happen if the cl_event passed in is invalid. */
2992 if (!dri2_sync->fence) {
2993 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2994 free(dri2_sync);
2995 return NULL;
2996 }
2997
2998 /* the initial status must be "signaled" if the cl_event is signaled */
2999 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
3000 dri2_sync->fence, 0, 0))
3001 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3002 break;
3003
3004 case EGL_SYNC_REUSABLE_KHR:
3005 /* intialize attr */
3006 ret = pthread_condattr_init(&attr);
3007
3008 if (ret) {
3009 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3010 free(dri2_sync);
3011 return NULL;
3012 }
3013
3014 /* change clock attribute to CLOCK_MONOTONIC */
3015 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
3016
3017 if (ret) {
3018 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3019 free(dri2_sync);
3020 return NULL;
3021 }
3022
3023 ret = pthread_cond_init(&dri2_sync->cond, &attr);
3024
3025 if (ret) {
3026 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3027 free(dri2_sync);
3028 return NULL;
3029 }
3030
3031 /* initial status of reusable sync must be "unsignaled" */
3032 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
3033 break;
3034
3035 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3036 if (dri2_dpy->fence->create_fence_fd) {
3037 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
3038 dri2_ctx->dri_context,
3039 dri2_sync->base.SyncFd);
3040 }
3041 if (!dri2_sync->fence) {
3042 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3043 free(dri2_sync);
3044 return NULL;
3045 }
3046 break;
3047 }
3048
3049 p_atomic_set(&dri2_sync->refcount, 1);
3050 return &dri2_sync->base;
3051 }
3052
3053 static EGLBoolean
3054 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3055 {
3056 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3057 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3058 EGLint ret = EGL_TRUE;
3059 EGLint err;
3060
3061 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
3062 * then unlock all threads possibly blocked by the reusable sync before
3063 * destroying it.
3064 */
3065 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
3066 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3067 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3068 /* unblock all threads currently blocked by sync */
3069 err = cnd_broadcast(&dri2_sync->cond);
3070
3071 if (err) {
3072 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
3073 ret = EGL_FALSE;
3074 }
3075 }
3076
3077 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3078
3079 return ret;
3080 }
3081
3082 static EGLint
3083 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3084 {
3085 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3086 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3087
3088 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
3089
3090 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3091 /* try to retrieve the actual native fence fd.. if rendering is
3092 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
3093 */
3094 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
3095 dri2_sync->fence);
3096 }
3097
3098 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3099 /* if native fence fd still not created, return an error: */
3100 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
3101 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
3102 }
3103
3104 return dup(sync->SyncFd);
3105 }
3106
3107 static void
3108 dri2_set_blob_cache_funcs(_EGLDriver *drv, _EGLDisplay *disp,
3109 EGLSetBlobFuncANDROID set,
3110 EGLGetBlobFuncANDROID get)
3111 {
3112 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3113 dri2_dpy->blob->set_cache_funcs(dri2_dpy->dri_screen,
3114 disp->BlobCacheSet,
3115 disp->BlobCacheGet);
3116 }
3117
3118 static EGLint
3119 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3120 EGLint flags, EGLTime timeout)
3121 {
3122 _EGLContext *ctx = _eglGetCurrentContext();
3123 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3124 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3125 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3126 unsigned wait_flags = 0;
3127
3128 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
3129
3130 /* The EGL_KHR_fence_sync spec states:
3131 *
3132 * "If no context is current for the bound API,
3133 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
3134 */
3135 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
3136 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
3137
3138 /* the sync object should take a reference while waiting */
3139 dri2_egl_ref_sync(dri2_sync);
3140
3141 switch (sync->Type) {
3142 case EGL_SYNC_FENCE_KHR:
3143 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3144 case EGL_SYNC_CL_EVENT_KHR:
3145 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
3146 dri2_sync->fence, wait_flags,
3147 timeout))
3148 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3149 else
3150 ret = EGL_TIMEOUT_EXPIRED_KHR;
3151 break;
3152
3153 case EGL_SYNC_REUSABLE_KHR:
3154 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
3155 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
3156 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
3157 dri2_gl_flush();
3158 }
3159
3160 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
3161 if (timeout == EGL_FOREVER_KHR) {
3162 mtx_lock(&dri2_sync->mutex);
3163 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
3164 mtx_unlock(&dri2_sync->mutex);
3165 } else {
3166 /* if reusable sync has not been yet signaled */
3167 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
3168 /* timespecs for cnd_timedwait */
3169 struct timespec current;
3170 struct timespec expire;
3171
3172 /* We override the clock to monotonic when creating the condition
3173 * variable. */
3174 clock_gettime(CLOCK_MONOTONIC, &current);
3175
3176 /* calculating when to expire */
3177 expire.tv_nsec = timeout % 1000000000L;
3178 expire.tv_sec = timeout / 1000000000L;
3179
3180 expire.tv_nsec += current.tv_nsec;
3181 expire.tv_sec += current.tv_sec;
3182
3183 /* expire.nsec now is a number between 0 and 1999999998 */
3184 if (expire.tv_nsec > 999999999L) {
3185 expire.tv_sec++;
3186 expire.tv_nsec -= 1000000000L;
3187 }
3188
3189 mtx_lock(&dri2_sync->mutex);
3190 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3191 mtx_unlock(&dri2_sync->mutex);
3192
3193 if (ret == thrd_busy) {
3194 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3195 ret = EGL_TIMEOUT_EXPIRED_KHR;
3196 } else {
3197 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3198 ret = EGL_FALSE;
3199 }
3200 }
3201 }
3202 }
3203 break;
3204 }
3205 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3206
3207 return ret;
3208 }
3209
3210 static EGLBoolean
3211 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3212 EGLenum mode)
3213 {
3214 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3215 EGLint ret;
3216
3217 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3218 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3219
3220 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3221 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3222
3223 dri2_sync->base.SyncStatus = mode;
3224
3225 if (mode == EGL_SIGNALED_KHR) {
3226 ret = cnd_broadcast(&dri2_sync->cond);
3227
3228 /* fail to broadcast */
3229 if (ret)
3230 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3231 }
3232
3233 return EGL_TRUE;
3234 }
3235
3236 static EGLint
3237 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3238 {
3239 _EGLContext *ctx = _eglGetCurrentContext();
3240 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3241 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3242 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3243
3244 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3245 dri2_sync->fence, 0);
3246 return EGL_TRUE;