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[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include <sys/types.h>
50 #include <sys/stat.h>
51
52 #ifdef HAVE_WAYLAND_PLATFORM
53 #include "wayland-drm.h"
54 #include "wayland-drm-client-protocol.h"
55 #include "linux-dmabuf-unstable-v1-client-protocol.h"
56 #endif
57
58 #ifdef HAVE_X11_PLATFORM
59 #include "X11/Xlibint.h"
60 #endif
61
62 #include "egl_dri2.h"
63 #include "GL/mesa_glinterop.h"
64 #include "loader/loader.h"
65 #include "util/u_atomic.h"
66 #include "util/u_vector.h"
67
68 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
69 * some of the definitions here so that building Mesa won't bleeding-edge
70 * kernel headers.
71 */
72 #ifndef DRM_FORMAT_R8
73 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
74 #endif
75
76 #ifndef DRM_FORMAT_RG88
77 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
78 #endif
79
80 #ifndef DRM_FORMAT_GR88
81 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
82 #endif
83
84 #ifndef DRM_FORMAT_R16
85 #define DRM_FORMAT_R16 fourcc_code('R', '1', '6', ' ') /* [15:0] R 16 little endian */
86 #endif
87
88 #ifndef DRM_FORMAT_GR1616
89 #define DRM_FORMAT_GR1616 fourcc_code('G', 'R', '3', '2') /* [31:0] R:G 16:16 little endian */
90 #endif
91
92 #ifndef DRM_FORMAT_MOD_INVALID
93 #define DRM_FORMAT_MOD_INVALID ((1ULL<<56) - 1)
94 #endif
95
96 static void
97 dri_set_background_context(void *loaderPrivate)
98 {
99 _EGLContext *ctx = _eglGetCurrentContext();
100 _EGLThreadInfo *t = _eglGetCurrentThread();
101
102 _eglBindContextToThread(ctx, t);
103 }
104
105 static GLboolean
106 dri_is_thread_safe(void *loaderPrivate)
107 {
108 struct dri2_egl_surface *dri2_surf = loaderPrivate;
109 _EGLDisplay *display = dri2_surf->base.Resource.Display;
110
111 #ifdef HAVE_X11_PLATFORM
112 Display *xdpy = (Display*)display->PlatformDisplay;
113
114 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
115 * platform
116 *
117 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
118 * It wll be NULL if XInitThreads wasn't called.
119 */
120 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
121 return false;
122 #endif
123
124 #ifdef HAVE_WAYLAND_PLATFORM
125 if (display->Platform == _EGL_PLATFORM_WAYLAND)
126 return true;
127 #endif
128
129 return true;
130 }
131
132 const __DRIbackgroundCallableExtension background_callable_extension = {
133 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
134
135 .setBackgroundContext = dri_set_background_context,
136 .isThreadSafe = dri_is_thread_safe,
137 };
138
139 const __DRIuseInvalidateExtension use_invalidate = {
140 .base = { __DRI_USE_INVALIDATE, 1 }
141 };
142
143 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
144 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
145 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
146 [__DRI_ATTRIB_RED_SIZE] = EGL_RED_SIZE,
147 [__DRI_ATTRIB_GREEN_SIZE] = EGL_GREEN_SIZE,
148 [__DRI_ATTRIB_BLUE_SIZE] = EGL_BLUE_SIZE,
149 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
150 [__DRI_ATTRIB_ALPHA_SIZE] = EGL_ALPHA_SIZE,
151 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
152 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
153 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
154 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
155 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
156 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
157 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
158 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
159 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
160 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
161 };
162
163 const __DRIconfig *
164 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
165 EGLenum colorspace)
166 {
167 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
168 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
169
170 return conf->dri_config[double_buffer][srgb];
171 }
172
173 static EGLBoolean
174 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
175 {
176 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
177 return EGL_FALSE;
178
179 if (!_eglMatchConfig(conf, criteria))
180 return EGL_FALSE;
181
182 return EGL_TRUE;
183 }
184
185 struct dri2_egl_config *
186 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
187 EGLint surface_type, const EGLint *attr_list,
188 const unsigned int *rgba_masks)
189 {
190 struct dri2_egl_config *conf;
191 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
192 _EGLConfig base;
193 unsigned int attrib, value, double_buffer;
194 bool srgb = false;
195 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
196 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
197 _EGLConfig *matching_config;
198 EGLint num_configs = 0;
199 EGLint config_id;
200
201 _eglInitConfig(&base, disp, id);
202
203 double_buffer = 0;
204 bind_to_texture_rgb = 0;
205 bind_to_texture_rgba = 0;
206
207 for (int i = 0; dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib,
208 &value); ++i) {
209 switch (attrib) {
210 case __DRI_ATTRIB_RENDER_TYPE:
211 if (value & __DRI_ATTRIB_RGBA_BIT)
212 value = EGL_RGB_BUFFER;
213 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
214 value = EGL_LUMINANCE_BUFFER;
215 else
216 return NULL;
217 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
218 break;
219
220 case __DRI_ATTRIB_CONFIG_CAVEAT:
221 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
222 value = EGL_NON_CONFORMANT_CONFIG;
223 else if (value & __DRI_ATTRIB_SLOW_BIT)
224 value = EGL_SLOW_CONFIG;
225 else
226 value = EGL_NONE;
227 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
228 break;
229
230 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
231 bind_to_texture_rgb = value;
232 break;
233
234 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
235 bind_to_texture_rgba = value;
236 break;
237
238 case __DRI_ATTRIB_DOUBLE_BUFFER:
239 double_buffer = value;
240 break;
241
242 case __DRI_ATTRIB_RED_MASK:
243 dri_masks[0] = value;
244 break;
245
246 case __DRI_ATTRIB_GREEN_MASK:
247 dri_masks[1] = value;
248 break;
249
250 case __DRI_ATTRIB_BLUE_MASK:
251 dri_masks[2] = value;
252 break;
253
254 case __DRI_ATTRIB_ALPHA_MASK:
255 dri_masks[3] = value;
256 break;
257
258 case __DRI_ATTRIB_ACCUM_RED_SIZE:
259 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
260 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
261 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
262 /* Don't expose visuals with the accumulation buffer. */
263 if (value > 0)
264 return NULL;
265 break;
266
267 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
268 srgb = value != 0;
269 if (!disp->Extensions.KHR_gl_colorspace && srgb)
270 return NULL;
271 break;
272
273 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
274 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
275 _EGL_MAX_PBUFFER_WIDTH);
276 break;
277 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
278 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
279 _EGL_MAX_PBUFFER_HEIGHT);
280 break;
281
282 default:
283 key = dri2_to_egl_attribute_map[attrib];
284 if (key != 0)
285 _eglSetConfigKey(&base, key, value);
286 break;
287 }
288 }
289
290 if (attr_list)
291 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
292 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
293
294 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
295 return NULL;
296
297 base.NativeRenderable = EGL_TRUE;
298
299 base.SurfaceType = surface_type;
300 if (surface_type & (EGL_PBUFFER_BIT |
301 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
302 base.BindToTextureRGB = bind_to_texture_rgb;
303 if (base.AlphaSize > 0)
304 base.BindToTextureRGBA = bind_to_texture_rgba;
305 }
306
307 base.RenderableType = disp->ClientAPIs;
308 base.Conformant = disp->ClientAPIs;
309
310 base.MinSwapInterval = dri2_dpy->min_swap_interval;
311 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
312
313 if (!_eglValidateConfig(&base, EGL_FALSE)) {
314 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
315 return NULL;
316 }
317
318 config_id = base.ConfigID;
319 base.ConfigID = EGL_DONT_CARE;
320 base.SurfaceType = EGL_DONT_CARE;
321 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
322 (_EGLArrayForEach) dri2_match_config, &base);
323
324 if (num_configs == 1) {
325 conf = (struct dri2_egl_config *) matching_config;
326
327 if (!conf->dri_config[double_buffer][srgb])
328 conf->dri_config[double_buffer][srgb] = dri_config;
329 else
330 /* a similar config type is already added (unlikely) => discard */
331 return NULL;
332 }
333 else if (num_configs == 0) {
334 conf = calloc(1, sizeof *conf);
335 if (conf == NULL)
336 return NULL;
337
338 conf->dri_config[double_buffer][srgb] = dri_config;
339
340 memcpy(&conf->base, &base, sizeof base);
341 conf->base.SurfaceType = 0;
342 conf->base.ConfigID = config_id;
343
344 _eglLinkConfig(&conf->base);
345 }
346 else {
347 assert(0);
348 return NULL;
349 }
350
351 if (double_buffer) {
352 surface_type &= ~EGL_PIXMAP_BIT;
353 }
354
355 /* No support for pbuffer + MSAA for now.
356 *
357 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
358 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
359 */
360 if (base.Samples) {
361 surface_type &= ~EGL_PBUFFER_BIT;
362 }
363
364 conf->base.SurfaceType |= surface_type;
365
366 return conf;
367 }
368
369 __DRIimage *
370 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
371 {
372 _EGLDisplay *disp = data;
373 struct dri2_egl_image *dri2_img;
374 _EGLImage *img;
375
376 (void) screen;
377
378 img = _eglLookupImage(image, disp);
379 if (img == NULL) {
380 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
381 return NULL;
382 }
383
384 dri2_img = dri2_egl_image(image);
385
386 return dri2_img->dri_image;
387 }
388
389 const __DRIimageLookupExtension image_lookup_extension = {
390 .base = { __DRI_IMAGE_LOOKUP, 1 },
391
392 .lookupEGLImage = dri2_lookup_egl_image
393 };
394
395 struct dri2_extension_match {
396 const char *name;
397 int version;
398 int offset;
399 };
400
401 static const struct dri2_extension_match dri3_driver_extensions[] = {
402 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
403 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
404 { NULL, 0, 0 }
405 };
406
407 static const struct dri2_extension_match dri2_driver_extensions[] = {
408 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
409 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
410 { NULL, 0, 0 }
411 };
412
413 static const struct dri2_extension_match dri2_core_extensions[] = {
414 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
415 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
416 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
417 { NULL, 0, 0 }
418 };
419
420 static const struct dri2_extension_match swrast_driver_extensions[] = {
421 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
422 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
423 { NULL, 0, 0 }
424 };
425
426 static const struct dri2_extension_match swrast_core_extensions[] = {
427 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
428 { NULL, 0, 0 }
429 };
430
431 static const struct dri2_extension_match optional_core_extensions[] = {
432 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
433 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
434 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
435 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
436 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
437 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
438 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
439 { NULL, 0, 0 }
440 };
441
442 static EGLBoolean
443 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
444 const struct dri2_extension_match *matches,
445 const __DRIextension **extensions,
446 bool optional)
447 {
448 int ret = EGL_TRUE;
449 void *field;
450
451 for (int i = 0; extensions[i]; i++) {
452 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
453 for (int j = 0; matches[j].name; j++) {
454 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
455 extensions[i]->version >= matches[j].version) {
456 field = ((char *) dri2_dpy + matches[j].offset);
457 *(const __DRIextension **) field = extensions[i];
458 _eglLog(_EGL_INFO, "found extension %s version %d",
459 extensions[i]->name, extensions[i]->version);
460 break;
461 }
462 }
463 }
464
465 for (int j = 0; matches[j].name; j++) {
466 field = ((char *) dri2_dpy + matches[j].offset);
467 if (*(const __DRIextension **) field == NULL) {
468 if (optional) {
469 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
470 matches[j].name, matches[j].version);
471 } else {
472 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
473 matches[j].name, matches[j].version);
474 ret = EGL_FALSE;
475 }
476 }
477 }
478
479 return ret;
480 }
481
482 static const __DRIextension **
483 dri2_open_driver(_EGLDisplay *disp)
484 {
485 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
486 const __DRIextension **extensions = NULL;
487 char path[PATH_MAX], *search_paths, *next, *end;
488 char *get_extensions_name;
489 const __DRIextension **(*get_extensions)(void);
490
491 search_paths = NULL;
492 if (geteuid() == getuid()) {
493 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
494 search_paths = getenv("LIBGL_DRIVERS_PATH");
495 }
496 if (search_paths == NULL)
497 search_paths = DEFAULT_DRIVER_DIR;
498
499 dri2_dpy->driver = NULL;
500 end = search_paths + strlen(search_paths);
501 for (char *p = search_paths; p < end; p = next + 1) {
502 int len;
503 next = strchr(p, ':');
504 if (next == NULL)
505 next = end;
506
507 len = next - p;
508 #if GLX_USE_TLS
509 snprintf(path, sizeof path,
510 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
511 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
512 #endif
513 if (dri2_dpy->driver == NULL) {
514 snprintf(path, sizeof path,
515 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
516 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
517 if (dri2_dpy->driver == NULL)
518 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
519 }
520 /* not need continue to loop all paths once the driver is found */
521 if (dri2_dpy->driver != NULL)
522 break;
523 }
524
525 if (dri2_dpy->driver == NULL) {
526 _eglLog(_EGL_WARNING,
527 "DRI2: failed to open %s (search paths %s)",
528 dri2_dpy->driver_name, search_paths);
529 return NULL;
530 }
531
532 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
533
534 get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
535 if (get_extensions_name) {
536 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
537 if (get_extensions) {
538 extensions = get_extensions();
539 } else {
540 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
541 get_extensions_name, dlerror());
542 }
543 free(get_extensions_name);
544 }
545
546 if (!extensions)
547 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
548 if (extensions == NULL) {
549 _eglLog(_EGL_WARNING,
550 "DRI2: driver exports no extensions (%s)", dlerror());
551 dlclose(dri2_dpy->driver);
552 }
553
554 return extensions;
555 }
556
557 EGLBoolean
558 dri2_load_driver_dri3(_EGLDisplay *disp)
559 {
560 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
561 const __DRIextension **extensions;
562
563 extensions = dri2_open_driver(disp);
564 if (!extensions)
565 return EGL_FALSE;
566
567 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
568 dlclose(dri2_dpy->driver);
569 return EGL_FALSE;
570 }
571 dri2_dpy->driver_extensions = extensions;
572
573 return EGL_TRUE;
574 }
575
576 EGLBoolean
577 dri2_load_driver(_EGLDisplay *disp)
578 {
579 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
580 const __DRIextension **extensions;
581
582 extensions = dri2_open_driver(disp);
583 if (!extensions)
584 return EGL_FALSE;
585
586 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
587 dlclose(dri2_dpy->driver);
588 return EGL_FALSE;
589 }
590 dri2_dpy->driver_extensions = extensions;
591
592 return EGL_TRUE;
593 }
594
595 EGLBoolean
596 dri2_load_driver_swrast(_EGLDisplay *disp)
597 {
598 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
599 const __DRIextension **extensions;
600
601 extensions = dri2_open_driver(disp);
602 if (!extensions)
603 return EGL_FALSE;
604
605 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
606 dlclose(dri2_dpy->driver);
607 return EGL_FALSE;
608 }
609 dri2_dpy->driver_extensions = extensions;
610
611 return EGL_TRUE;
612 }
613
614 static unsigned
615 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
616 {
617 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
618 unsigned int value = 0;
619
620 if (!rendererQuery ||
621 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
622 return 0;
623
624 return value;
625 }
626
627 void
628 dri2_setup_screen(_EGLDisplay *disp)
629 {
630 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
631 unsigned int api_mask;
632
633 if (dri2_dpy->image_driver) {
634 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
635 } else if (dri2_dpy->dri2) {
636 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
637 } else {
638 assert(dri2_dpy->swrast);
639 api_mask = 1 << __DRI_API_OPENGL |
640 1 << __DRI_API_GLES |
641 1 << __DRI_API_GLES2 |
642 1 << __DRI_API_GLES3;
643 }
644
645 disp->ClientAPIs = 0;
646 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
647 disp->ClientAPIs |= EGL_OPENGL_BIT;
648 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
649 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
650 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
651 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
652 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
653 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
654
655 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
656 disp->Extensions.KHR_no_config_context = EGL_TRUE;
657 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
658
659 if (dri2_renderer_query_integer(dri2_dpy,
660 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
661 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
662
663 if (dri2_dpy->image_driver ||
664 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
665 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
666 disp->Extensions.KHR_create_context = EGL_TRUE;
667
668 if (dri2_dpy->robustness)
669 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
670 }
671
672 if (dri2_dpy->no_error)
673 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
674
675 if (dri2_dpy->fence) {
676 disp->Extensions.KHR_fence_sync = EGL_TRUE;
677 disp->Extensions.KHR_wait_sync = EGL_TRUE;
678 if (dri2_dpy->fence->get_fence_from_cl_event)
679 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
680 if (dri2_dpy->fence->base.version >= 2) {
681 unsigned capabilities =
682 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
683 disp->Extensions.ANDROID_native_fence_sync =
684 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
685 }
686 }
687
688 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
689
690 if (dri2_dpy->image) {
691 if (dri2_dpy->image->base.version >= 10 &&
692 dri2_dpy->image->getCapabilities != NULL) {
693 int capabilities;
694
695 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
696 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
697
698 if (dri2_dpy->image->base.version >= 11)
699 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
700 } else {
701 disp->Extensions.MESA_drm_image = EGL_TRUE;
702 if (dri2_dpy->image->base.version >= 11)
703 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
704 }
705
706 disp->Extensions.KHR_image_base = EGL_TRUE;
707 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
708 if (dri2_dpy->image->base.version >= 5 &&
709 dri2_dpy->image->createImageFromTexture) {
710 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
711 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
712
713 if (dri2_renderer_query_integer(dri2_dpy,
714 __DRI2_RENDERER_HAS_TEXTURE_3D))
715 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
716 }
717 #ifdef HAVE_LIBDRM
718 if (dri2_dpy->image->base.version >= 8 &&
719 dri2_dpy->image->createImageFromDmaBufs) {
720 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
721 }
722 if (dri2_dpy->image->base.version >= 15 &&
723 dri2_dpy->image->createImageFromDmaBufs2 &&
724 dri2_dpy->image->queryDmaBufFormats &&
725 dri2_dpy->image->queryDmaBufModifiers) {
726 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
727 }
728 #endif
729 }
730 }
731
732 void
733 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
734 {
735 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
736 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
737
738 /* Allow driconf to override applications.*/
739 if (dri2_dpy->config)
740 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
741 "vblank_mode", &vblank_mode);
742 switch (vblank_mode) {
743 case DRI_CONF_VBLANK_NEVER:
744 dri2_dpy->min_swap_interval = 0;
745 dri2_dpy->max_swap_interval = 0;
746 dri2_dpy->default_swap_interval = 0;
747 break;
748 case DRI_CONF_VBLANK_ALWAYS_SYNC:
749 dri2_dpy->min_swap_interval = 1;
750 dri2_dpy->max_swap_interval = max_swap_interval;
751 dri2_dpy->default_swap_interval = 1;
752 break;
753 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
754 dri2_dpy->min_swap_interval = 0;
755 dri2_dpy->max_swap_interval = max_swap_interval;
756 dri2_dpy->default_swap_interval = 0;
757 break;
758 default:
759 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
760 dri2_dpy->min_swap_interval = 0;
761 dri2_dpy->max_swap_interval = max_swap_interval;
762 dri2_dpy->default_swap_interval = 1;
763 break;
764 }
765 }
766
767 /* All platforms but DRM call this function to create the screen and populate
768 * the driver_configs. DRM inherits that information from its display - GBM.
769 */
770 EGLBoolean
771 dri2_create_screen(_EGLDisplay *disp)
772 {
773 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
774
775 if (dri2_dpy->image_driver) {
776 dri2_dpy->dri_screen =
777 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
778 dri2_dpy->loader_extensions,
779 dri2_dpy->driver_extensions,
780 &dri2_dpy->driver_configs,
781 disp);
782 } else if (dri2_dpy->dri2) {
783 if (dri2_dpy->dri2->base.version >= 4) {
784 dri2_dpy->dri_screen =
785 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
786 dri2_dpy->loader_extensions,
787 dri2_dpy->driver_extensions,
788 &dri2_dpy->driver_configs, disp);
789 } else {
790 dri2_dpy->dri_screen =
791 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
792 dri2_dpy->loader_extensions,
793 &dri2_dpy->driver_configs, disp);
794 }
795 } else {
796 assert(dri2_dpy->swrast);
797 if (dri2_dpy->swrast->base.version >= 4) {
798 dri2_dpy->dri_screen =
799 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
800 dri2_dpy->driver_extensions,
801 &dri2_dpy->driver_configs, disp);
802 } else {
803 dri2_dpy->dri_screen =
804 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
805 &dri2_dpy->driver_configs, disp);
806 }
807 }
808
809 if (dri2_dpy->dri_screen == NULL) {
810 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
811 return EGL_FALSE;
812 }
813
814 dri2_dpy->own_dri_screen = true;
815 return EGL_TRUE;
816 }
817
818 EGLBoolean
819 dri2_setup_extensions(_EGLDisplay *disp)
820 {
821 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
822 const struct dri2_extension_match *mandatory_core_extensions;
823 const __DRIextension **extensions;
824
825 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
826
827 if (dri2_dpy->image_driver || dri2_dpy->dri2)
828 mandatory_core_extensions = dri2_core_extensions;
829 else
830 mandatory_core_extensions = swrast_core_extensions;
831
832 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
833 return EGL_FALSE;
834
835 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
836 return EGL_TRUE;
837 }
838
839 /**
840 * Called via eglInitialize(), GLX_drv->API.Initialize().
841 *
842 * This must be guaranteed to be called exactly once, even if eglInitialize is
843 * called many times (without a eglTerminate in between).
844 */
845 static EGLBoolean
846 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
847 {
848 EGLBoolean ret = EGL_FALSE;
849 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
850
851 /* In the case where the application calls eglMakeCurrent(context1),
852 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
853 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
854 * initialized, as we need it to be able to free context1 correctly.
855 *
856 * It would probably be safest to forcibly release the display with
857 * dri2_display_release, to make sure the display is reinitialized correctly.
858 * However, the EGL spec states that we need to keep a reference to the
859 * current context (so we cannot call dri2_make_current(NULL)), and therefore
860 * we would leak context1 as we would be missing the old display connection
861 * to free it up correctly.
862 */
863 if (dri2_dpy) {
864 dri2_dpy->ref_count++;
865 return EGL_TRUE;
866 }
867
868 /* not until swrast_dri is supported */
869 if (disp->Options.UseFallback)
870 return EGL_FALSE;
871
872 /* Nothing to initialize for a test only display */
873 if (disp->Options.TestOnly)
874 return EGL_TRUE;
875
876 switch (disp->Platform) {
877 #ifdef HAVE_SURFACELESS_PLATFORM
878 case _EGL_PLATFORM_SURFACELESS:
879 ret = dri2_initialize_surfaceless(drv, disp);
880 break;
881 #endif
882 #ifdef HAVE_X11_PLATFORM
883 case _EGL_PLATFORM_X11:
884 ret = dri2_initialize_x11(drv, disp);
885 break;
886 #endif
887 #ifdef HAVE_DRM_PLATFORM
888 case _EGL_PLATFORM_DRM:
889 ret = dri2_initialize_drm(drv, disp);
890 break;
891 #endif
892 #ifdef HAVE_WAYLAND_PLATFORM
893 case _EGL_PLATFORM_WAYLAND:
894 ret = dri2_initialize_wayland(drv, disp);
895 break;
896 #endif
897 #ifdef HAVE_ANDROID_PLATFORM
898 case _EGL_PLATFORM_ANDROID:
899 ret = dri2_initialize_android(drv, disp);
900 break;
901 #endif
902 default:
903 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
904 return EGL_FALSE;
905 }
906
907 if (ret) {
908 dri2_dpy = dri2_egl_display(disp);
909
910 if (!dri2_dpy) {
911 return EGL_FALSE;
912 }
913
914 dri2_dpy->ref_count++;
915 }
916
917 return ret;
918 }
919
920 /**
921 * Decrement display reference count, and free up display if necessary.
922 */
923 static void
924 dri2_display_release(_EGLDisplay *disp)
925 {
926 struct dri2_egl_display *dri2_dpy;
927
928 if (!disp)
929 return;
930
931 dri2_dpy = dri2_egl_display(disp);
932
933 assert(dri2_dpy->ref_count > 0);
934 dri2_dpy->ref_count--;
935
936 if (dri2_dpy->ref_count > 0)
937 return;
938
939 _eglCleanupDisplay(disp);
940 dri2_display_destroy(disp);
941 }
942
943 void
944 dri2_display_destroy(_EGLDisplay *disp)
945 {
946 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
947
948 if (dri2_dpy->own_dri_screen) {
949 if (dri2_dpy->vtbl->close_screen_notify)
950 dri2_dpy->vtbl->close_screen_notify(disp);
951 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
952 }
953 if (dri2_dpy->fd >= 0)
954 close(dri2_dpy->fd);
955 if (dri2_dpy->driver)
956 dlclose(dri2_dpy->driver);
957 free(dri2_dpy->driver_name);
958
959 #ifdef HAVE_WAYLAND_PLATFORM
960 free(dri2_dpy->device_name);
961 #endif
962
963 switch (disp->Platform) {
964 #ifdef HAVE_X11_PLATFORM
965 case _EGL_PLATFORM_X11:
966 if (dri2_dpy->own_device) {
967 xcb_disconnect(dri2_dpy->conn);
968 }
969 break;
970 #endif
971 #ifdef HAVE_DRM_PLATFORM
972 case _EGL_PLATFORM_DRM:
973 if (dri2_dpy->own_device) {
974 gbm_device_destroy(&dri2_dpy->gbm_dri->base);
975 }
976 break;
977 #endif
978 #ifdef HAVE_WAYLAND_PLATFORM
979 case _EGL_PLATFORM_WAYLAND:
980 if (dri2_dpy->wl_drm)
981 wl_drm_destroy(dri2_dpy->wl_drm);
982 if (dri2_dpy->wl_dmabuf)
983 zwp_linux_dmabuf_v1_destroy(dri2_dpy->wl_dmabuf);
984 if (dri2_dpy->wl_shm)
985 wl_shm_destroy(dri2_dpy->wl_shm);
986 wl_registry_destroy(dri2_dpy->wl_registry);
987 wl_event_queue_destroy(dri2_dpy->wl_queue);
988 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
989 u_vector_finish(&dri2_dpy->wl_modifiers.argb8888);
990 u_vector_finish(&dri2_dpy->wl_modifiers.xrgb8888);
991 u_vector_finish(&dri2_dpy->wl_modifiers.rgb565);
992 if (dri2_dpy->own_device) {
993 wl_display_disconnect(dri2_dpy->wl_dpy);
994 }
995 break;
996 #endif
997 default:
998 break;
999 }
1000
1001 /* The drm platform does not create the screen/driver_configs but reuses
1002 * the ones from the gbm device. As such the gbm itself is responsible
1003 * for the cleanup.
1004 */
1005 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1006 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1007 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1008 free(dri2_dpy->driver_configs);
1009 }
1010 free(dri2_dpy);
1011 disp->DriverData = NULL;
1012 }
1013
1014 __DRIbuffer *
1015 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
1016 unsigned int att, unsigned int format)
1017 {
1018 struct dri2_egl_display *dri2_dpy =
1019 dri2_egl_display(dri2_surf->base.Resource.Display);
1020
1021 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
1022 return NULL;
1023
1024 if (!dri2_surf->local_buffers[att]) {
1025 dri2_surf->local_buffers[att] =
1026 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
1027 dri2_surf->base.Width, dri2_surf->base.Height);
1028 }
1029
1030 return dri2_surf->local_buffers[att];
1031 }
1032
1033 void
1034 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
1035 {
1036 struct dri2_egl_display *dri2_dpy =
1037 dri2_egl_display(dri2_surf->base.Resource.Display);
1038
1039 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1040 if (dri2_surf->local_buffers[i]) {
1041 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1042 dri2_surf->local_buffers[i]);
1043 dri2_surf->local_buffers[i] = NULL;
1044 }
1045 }
1046 }
1047
1048 /**
1049 * Called via eglTerminate(), drv->API.Terminate().
1050 *
1051 * This must be guaranteed to be called exactly once, even if eglTerminate is
1052 * called many times (without a eglInitialize in between).
1053 */
1054 static EGLBoolean
1055 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1056 {
1057 /* Release all non-current Context/Surfaces. */
1058 _eglReleaseDisplayResources(drv, disp);
1059
1060 dri2_display_release(disp);
1061
1062 return EGL_TRUE;
1063 }
1064
1065 /**
1066 * Set the error code after a call to
1067 * dri2_egl_display::dri2::createContextAttribs.
1068 */
1069 static void
1070 dri2_create_context_attribs_error(int dri_error)
1071 {
1072 EGLint egl_error;
1073
1074 switch (dri_error) {
1075 case __DRI_CTX_ERROR_SUCCESS:
1076 return;
1077
1078 case __DRI_CTX_ERROR_NO_MEMORY:
1079 egl_error = EGL_BAD_ALLOC;
1080 break;
1081
1082 /* From the EGL_KHR_create_context spec, section "Errors":
1083 *
1084 * * If <config> does not support a client API context compatible
1085 * with the requested API major and minor version, [...] context flags,
1086 * and context reset notification behavior (for client API types where
1087 * these attributes are supported), then an EGL_BAD_MATCH error is
1088 * generated.
1089 *
1090 * * If an OpenGL ES context is requested and the values for
1091 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1092 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1093 * is not defined, than an EGL_BAD_MATCH error is generated.
1094 *
1095 * * If an OpenGL context is requested, the requested version is
1096 * greater than 3.2, and the value for attribute
1097 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1098 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1099 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1100 * one of these bits set; or if the implementation does not support
1101 * the requested profile, then an EGL_BAD_MATCH error is generated.
1102 */
1103 case __DRI_CTX_ERROR_BAD_API:
1104 case __DRI_CTX_ERROR_BAD_VERSION:
1105 case __DRI_CTX_ERROR_BAD_FLAG:
1106 egl_error = EGL_BAD_MATCH;
1107 break;
1108
1109 /* From the EGL_KHR_create_context spec, section "Errors":
1110 *
1111 * * If an attribute name or attribute value in <attrib_list> is not
1112 * recognized (including unrecognized bits in bitmask attributes),
1113 * then an EGL_BAD_ATTRIBUTE error is generated."
1114 */
1115 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1116 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1117 egl_error = EGL_BAD_ATTRIBUTE;
1118 break;
1119
1120 default:
1121 assert(0);
1122 egl_error = EGL_BAD_MATCH;
1123 break;
1124 }
1125
1126 _eglError(egl_error, "dri2_create_context");
1127 }
1128
1129 static bool
1130 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1131 struct dri2_egl_display *dri2_dpy,
1132 uint32_t *ctx_attribs,
1133 unsigned *num_attribs)
1134 {
1135 int pos = 0;
1136
1137 assert(*num_attribs >= 8);
1138
1139 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1140 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1141 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1142 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1143
1144 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1145 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1146 * extension, don't even try to send it the robust-access flag.
1147 * It may explode. Instead, generate the required EGL error here.
1148 */
1149 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1150 && !dri2_dpy->robustness) {
1151 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1152 return false;
1153 }
1154
1155 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1156 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1157 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1158 }
1159
1160 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1161 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1162 * extension, don't even try to send it a reset strategy. It may
1163 * explode. Instead, generate the required EGL error here.
1164 */
1165 if (!dri2_dpy->robustness) {
1166 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1167 return false;
1168 }
1169
1170 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1171 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1172 }
1173
1174 *num_attribs = pos;
1175
1176 return true;
1177 }
1178
1179 /**
1180 * Called via eglCreateContext(), drv->API.CreateContext().
1181 */
1182 static _EGLContext *
1183 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1184 _EGLContext *share_list, const EGLint *attrib_list)
1185 {
1186 struct dri2_egl_context *dri2_ctx;
1187 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1188 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1189 __DRIcontext *shared =
1190 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1191 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1192 const __DRIconfig *dri_config;
1193 int api;
1194
1195 (void) drv;
1196
1197 dri2_ctx = malloc(sizeof *dri2_ctx);
1198 if (!dri2_ctx) {
1199 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1200 return NULL;
1201 }
1202
1203 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1204 goto cleanup;
1205
1206 /* The EGL_EXT_create_context_robustness spec says:
1207 *
1208 * "Add to the eglCreateContext context creation errors: [...]
1209 *
1210 * * If the reset notification behavior of <share_context> and the
1211 * newly created context are different then an EGL_BAD_MATCH error is
1212 * generated."
1213 */
1214 if (share_list && share_list->ResetNotificationStrategy !=
1215 dri2_ctx->base.ResetNotificationStrategy) {
1216 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1217 goto cleanup;
1218 }
1219
1220 /* The EGL_KHR_create_context_no_error spec says:
1221 *
1222 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1223 * used to create <share_context> does not match the value of
1224 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1225 */
1226 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1227 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1228 goto cleanup;
1229 }
1230
1231 switch (dri2_ctx->base.ClientAPI) {
1232 case EGL_OPENGL_ES_API:
1233 switch (dri2_ctx->base.ClientMajorVersion) {
1234 case 1:
1235 api = __DRI_API_GLES;
1236 break;
1237 case 2:
1238 api = __DRI_API_GLES2;
1239 break;
1240 case 3:
1241 api = __DRI_API_GLES3;
1242 break;
1243 default:
1244 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1245 free(dri2_ctx);
1246 return NULL;
1247 }
1248 break;
1249 case EGL_OPENGL_API:
1250 if ((dri2_ctx->base.ClientMajorVersion >= 4
1251 || (dri2_ctx->base.ClientMajorVersion == 3
1252 && dri2_ctx->base.ClientMinorVersion >= 2))
1253 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1254 api = __DRI_API_OPENGL_CORE;
1255 else
1256 api = __DRI_API_OPENGL;
1257 break;
1258 default:
1259 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1260 free(dri2_ctx);
1261 return NULL;
1262 }
1263
1264 if (conf != NULL) {
1265 /* The config chosen here isn't necessarily
1266 * used for surfaces later.
1267 * A pixmap surface will use the single config.
1268 * This opportunity depends on disabling the
1269 * doubleBufferMode check in
1270 * src/mesa/main/context.c:check_compatible()
1271 */
1272 if (dri2_config->dri_config[1][0])
1273 dri_config = dri2_config->dri_config[1][0];
1274 else
1275 dri_config = dri2_config->dri_config[0][0];
1276
1277 /* EGL_WINDOW_BIT is set only when there is a double-buffered dri_config.
1278 * This makes sure the back buffer will always be used.
1279 */
1280 if (conf->SurfaceType & EGL_WINDOW_BIT)
1281 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1282 }
1283 else
1284 dri_config = NULL;
1285
1286 if (dri2_dpy->image_driver) {
1287 unsigned error;
1288 unsigned num_attribs = 8;
1289 uint32_t ctx_attribs[8];
1290
1291 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1292 &num_attribs))
1293 goto cleanup;
1294
1295 dri2_ctx->dri_context =
1296 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1297 api,
1298 dri_config,
1299 shared,
1300 num_attribs / 2,
1301 ctx_attribs,
1302 & error,
1303 dri2_ctx);
1304 dri2_create_context_attribs_error(error);
1305 } else if (dri2_dpy->dri2) {
1306 if (dri2_dpy->dri2->base.version >= 3) {
1307 unsigned error;
1308 unsigned num_attribs = 8;
1309 uint32_t ctx_attribs[8];
1310
1311 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1312 &num_attribs))
1313 goto cleanup;
1314
1315 dri2_ctx->dri_context =
1316 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1317 api,
1318 dri_config,
1319 shared,
1320 num_attribs / 2,
1321 ctx_attribs,
1322 & error,
1323 dri2_ctx);
1324 dri2_create_context_attribs_error(error);
1325 } else {
1326 dri2_ctx->dri_context =
1327 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1328 api,
1329 dri_config,
1330 shared,
1331 dri2_ctx);
1332 }
1333 } else {
1334 assert(dri2_dpy->swrast);
1335 if (dri2_dpy->swrast->base.version >= 3) {
1336 unsigned error;
1337 unsigned num_attribs = 8;
1338 uint32_t ctx_attribs[8];
1339
1340 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1341 &num_attribs))
1342 goto cleanup;
1343
1344 dri2_ctx->dri_context =
1345 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1346 api,
1347 dri_config,
1348 shared,
1349 num_attribs / 2,
1350 ctx_attribs,
1351 & error,
1352 dri2_ctx);
1353 dri2_create_context_attribs_error(error);
1354 } else {
1355 dri2_ctx->dri_context =
1356 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1357 api,
1358 dri_config,
1359 shared,
1360 dri2_ctx);
1361 }
1362 }
1363
1364 if (!dri2_ctx->dri_context)
1365 goto cleanup;
1366
1367 return &dri2_ctx->base;
1368
1369 cleanup:
1370 free(dri2_ctx);
1371 return NULL;
1372 }
1373
1374 /**
1375 * Called via eglDestroyContext(), drv->API.DestroyContext().
1376 */
1377 static EGLBoolean
1378 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1379 {
1380 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1381 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1382
1383 if (_eglPutContext(ctx)) {
1384 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1385 free(dri2_ctx);
1386 }
1387
1388 return EGL_TRUE;
1389 }
1390
1391 static EGLBoolean
1392 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1393 {
1394 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1395
1396 if (!_eglPutSurface(surf))
1397 return EGL_TRUE;
1398
1399 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1400 }
1401
1402 /**
1403 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1404 */
1405 static EGLBoolean
1406 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1407 _EGLSurface *rsurf, _EGLContext *ctx)
1408 {
1409 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1410 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1411 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1412 _EGLContext *old_ctx;
1413 _EGLSurface *old_dsurf, *old_rsurf;
1414 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1415 __DRIdrawable *ddraw, *rdraw;
1416 __DRIcontext *cctx;
1417 EGLBoolean unbind;
1418
1419 if (!dri2_dpy)
1420 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1421
1422 /* make new bindings */
1423 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1424 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1425 return EGL_FALSE;
1426 }
1427
1428 /* flush before context switch */
1429 if (old_ctx)
1430 dri2_drv->glFlush();
1431
1432 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1433 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1434 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1435
1436 if (old_ctx) {
1437 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1438 dri2_dpy->core->unbindContext(old_cctx);
1439 }
1440
1441 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1442
1443 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1444 dri2_destroy_surface(drv, disp, old_dsurf);
1445 dri2_destroy_surface(drv, disp, old_rsurf);
1446
1447 if (!unbind)
1448 dri2_dpy->ref_count++;
1449 if (old_ctx) {
1450 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1451 dri2_destroy_context(drv, disp, old_ctx);
1452 dri2_display_release(old_disp);
1453 }
1454
1455 return EGL_TRUE;
1456 } else {
1457 /* undo the previous _eglBindContext */
1458 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1459 assert(&dri2_ctx->base == ctx &&
1460 tmp_dsurf == dsurf &&
1461 tmp_rsurf == rsurf);
1462
1463 _eglPutSurface(dsurf);
1464 _eglPutSurface(rsurf);
1465 _eglPutContext(ctx);
1466
1467 _eglPutSurface(old_dsurf);
1468 _eglPutSurface(old_rsurf);
1469 _eglPutContext(old_ctx);
1470
1471 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1472 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1473 * as EGL_SUCCESS.
1474 */
1475 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1476 }
1477 }
1478
1479 __DRIdrawable *
1480 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1481 {
1482 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1483
1484 return dri2_surf->dri_drawable;
1485 }
1486
1487 /*
1488 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1489 */
1490 static _EGLProc
1491 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1492 {
1493 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1494
1495 return dri2_drv->get_proc_address(procname);
1496 }
1497
1498 static _EGLSurface*
1499 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1500 _EGLConfig *conf, void *native_window,
1501 const EGLint *attrib_list)
1502 {
1503 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1504 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1505 attrib_list);
1506 }
1507
1508 static _EGLSurface*
1509 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1510 _EGLConfig *conf, void *native_pixmap,
1511 const EGLint *attrib_list)
1512 {
1513 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1514 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1515 attrib_list);
1516 }
1517
1518 static _EGLSurface*
1519 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1520 _EGLConfig *conf, const EGLint *attrib_list)
1521 {
1522 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1523 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1524 }
1525
1526 static EGLBoolean
1527 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1528 EGLint interval)
1529 {
1530 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1531 if (!dri2_dpy->vtbl->swap_interval)
1532 return EGL_TRUE;
1533 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1534 }
1535
1536 /**
1537 * Asks the client API to flush any rendering to the drawable so that we can
1538 * do our swapbuffers.
1539 */
1540 void
1541 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1542 {
1543 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1544 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1545
1546 if (dri2_dpy->flush) {
1547 if (dri2_dpy->flush->base.version >= 4) {
1548 /* We know there's a current context because:
1549 *
1550 * "If surface is not bound to the calling thread’s current
1551 * context, an EGL_BAD_SURFACE error is generated."
1552 */
1553 _EGLContext *ctx = _eglGetCurrentContext();
1554 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1555
1556 /* From the EGL 1.4 spec (page 52):
1557 *
1558 * "The contents of ancillary buffers are always undefined
1559 * after calling eglSwapBuffers."
1560 */
1561 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1562 dri_drawable,
1563 __DRI2_FLUSH_DRAWABLE |
1564 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1565 __DRI2_THROTTLE_SWAPBUFFER);
1566 } else {
1567 dri2_dpy->flush->flush(dri_drawable);
1568 }
1569 }
1570 }
1571
1572 static EGLBoolean
1573 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1574 {
1575 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1576 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1577 }
1578
1579 static EGLBoolean
1580 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1581 _EGLSurface *surf,
1582 const EGLint *rects, EGLint n_rects)
1583 {
1584 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1585 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1586 rects, n_rects);
1587 }
1588
1589 static EGLBoolean
1590 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1591 EGLint numRects, const EGLint *rects)
1592 {
1593 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1594 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1595 }
1596
1597 static EGLBoolean
1598 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1599 EGLint *rects, EGLint n_rects)
1600 {
1601 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1602 return dri2_dpy->vtbl->set_damage_region(drv, dpy, surf, rects, n_rects);
1603 }
1604
1605 static EGLBoolean
1606 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1607 EGLint x, EGLint y, EGLint width, EGLint height)
1608 {
1609 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1610 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1611 }
1612
1613 static EGLBoolean
1614 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1615 void *native_pixmap_target)
1616 {
1617 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1618 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1619 }
1620
1621 static EGLint
1622 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1623 {
1624 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1625 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1626 }
1627
1628 static EGLBoolean
1629 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1630 {
1631 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1632 _EGLSurface *surf = ctx->DrawSurface;
1633 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1634
1635 (void) drv;
1636
1637 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1638 * we need to copy fake to real here.*/
1639
1640 if (dri2_dpy->flush != NULL)
1641 dri2_dpy->flush->flush(dri_drawable);
1642
1643 return EGL_TRUE;
1644 }
1645
1646 static EGLBoolean
1647 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1648 {
1649 (void) drv;
1650 (void) disp;
1651
1652 if (engine != EGL_CORE_NATIVE_ENGINE)
1653 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1654 /* glXWaitX(); */
1655
1656 return EGL_TRUE;
1657 }
1658
1659 static EGLBoolean
1660 dri2_bind_tex_image(_EGLDriver *drv,
1661 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1662 {
1663 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1664 struct dri2_egl_context *dri2_ctx;
1665 _EGLContext *ctx;
1666 GLint format, target;
1667 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1668
1669 ctx = _eglGetCurrentContext();
1670 dri2_ctx = dri2_egl_context(ctx);
1671
1672 if (!_eglBindTexImage(drv, disp, surf, buffer))
1673 return EGL_FALSE;
1674
1675 switch (surf->TextureFormat) {
1676 case EGL_TEXTURE_RGB:
1677 format = __DRI_TEXTURE_FORMAT_RGB;
1678 break;
1679 case EGL_TEXTURE_RGBA:
1680 format = __DRI_TEXTURE_FORMAT_RGBA;
1681 break;
1682 default:
1683 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1684 format = __DRI_TEXTURE_FORMAT_RGBA;
1685 }
1686
1687 switch (surf->TextureTarget) {
1688 case EGL_TEXTURE_2D:
1689 target = GL_TEXTURE_2D;
1690 break;
1691 default:
1692 target = GL_TEXTURE_2D;
1693 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1694 }
1695
1696 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1697 target, format,
1698 dri_drawable);
1699
1700 return EGL_TRUE;
1701 }
1702
1703 static EGLBoolean
1704 dri2_release_tex_image(_EGLDriver *drv,
1705 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1706 {
1707 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1708 struct dri2_egl_context *dri2_ctx;
1709 _EGLContext *ctx;
1710 GLint target;
1711 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1712
1713 ctx = _eglGetCurrentContext();
1714 dri2_ctx = dri2_egl_context(ctx);
1715
1716 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1717 return EGL_FALSE;
1718
1719 switch (surf->TextureTarget) {
1720 case EGL_TEXTURE_2D:
1721 target = GL_TEXTURE_2D;
1722 break;
1723 default:
1724 assert(0);
1725 }
1726
1727 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1728 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1729 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1730 target, dri_drawable);
1731 }
1732
1733 return EGL_TRUE;
1734 }
1735
1736 static _EGLImage*
1737 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1738 EGLenum target, EGLClientBuffer buffer,
1739 const EGLint *attr_list)
1740 {
1741 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1742 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1743 attr_list);
1744 }
1745
1746 static _EGLImage *
1747 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1748 {
1749 struct dri2_egl_image *dri2_img;
1750
1751 if (dri_image == NULL) {
1752 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1753 return NULL;
1754 }
1755
1756 dri2_img = malloc(sizeof *dri2_img);
1757 if (!dri2_img) {
1758 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1759 return NULL;
1760 }
1761
1762 _eglInitImage(&dri2_img->base, disp);
1763
1764 dri2_img->dri_image = dri_image;
1765
1766 return &dri2_img->base;
1767 }
1768
1769 static _EGLImage *
1770 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1771 EGLClientBuffer buffer,
1772 const EGLint *attr_list)
1773 {
1774 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1775 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1776 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1777 __DRIimage *dri_image;
1778
1779 if (renderbuffer == 0) {
1780 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1781 return EGL_NO_IMAGE_KHR;
1782 }
1783
1784 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
1785 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1786 return EGL_NO_IMAGE_KHR;
1787 }
1788
1789 dri_image =
1790 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1791 renderbuffer, NULL);
1792
1793 return dri2_create_image_from_dri(disp, dri_image);
1794 }
1795
1796 #ifdef HAVE_WAYLAND_PLATFORM
1797
1798 /* This structure describes how a wl_buffer maps to one or more
1799 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1800 * offsets and strides of the planes in the buffer. This table maps a
1801 * wl_drm format code to a description of the planes in the buffer
1802 * that lets us create a __DRIimage for each of the planes. */
1803
1804 static const struct wl_drm_components_descriptor {
1805 uint32_t dri_components;
1806 EGLint components;
1807 int nplanes;
1808 } wl_drm_components[] = {
1809 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1810 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1811 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1812 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1813 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1814 };
1815
1816 static _EGLImage *
1817 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1818 EGLClientBuffer _buffer,
1819 const EGLint *attr_list)
1820 {
1821 struct wl_drm_buffer *buffer;
1822 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1823 const struct wl_drm_components_descriptor *f;
1824 __DRIimage *dri_image;
1825 _EGLImageAttribs attrs;
1826 int32_t plane;
1827
1828 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1829 (struct wl_resource *) _buffer);
1830 if (!buffer)
1831 return NULL;
1832
1833 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1834 return NULL;
1835
1836 plane = attrs.PlaneWL;
1837 f = buffer->driver_format;
1838 if (plane < 0 || plane >= f->nplanes) {
1839 _eglError(EGL_BAD_PARAMETER,
1840 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1841 return NULL;
1842 }
1843
1844 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1845
1846 if (dri_image == NULL) {
1847 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1848 return NULL;
1849 }
1850
1851 return dri2_create_image_from_dri(disp, dri_image);
1852 }
1853 #endif
1854
1855 static EGLBoolean
1856 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1857 EGLuint64KHR *ust, EGLuint64KHR *msc,
1858 EGLuint64KHR *sbc)
1859 {
1860 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1861 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1862 }
1863
1864 /**
1865 * Set the error code after a call to
1866 * dri2_egl_image::dri_image::createImageFromTexture.
1867 */
1868 static void
1869 dri2_create_image_khr_texture_error(int dri_error)
1870 {
1871 EGLint egl_error;
1872
1873 switch (dri_error) {
1874 case __DRI_IMAGE_ERROR_SUCCESS:
1875 return;
1876
1877 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1878 egl_error = EGL_BAD_ALLOC;
1879 break;
1880
1881 case __DRI_IMAGE_ERROR_BAD_MATCH:
1882 egl_error = EGL_BAD_MATCH;
1883 break;
1884
1885 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1886 egl_error = EGL_BAD_PARAMETER;
1887 break;
1888
1889 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1890 egl_error = EGL_BAD_ACCESS;
1891 break;
1892
1893 default:
1894 assert(0);
1895 egl_error = EGL_BAD_MATCH;
1896 break;
1897 }
1898
1899 _eglError(egl_error, "dri2_create_image_khr_texture");
1900 }
1901
1902 static _EGLImage *
1903 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1904 EGLenum target,
1905 EGLClientBuffer buffer,
1906 const EGLint *attr_list)
1907 {
1908 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1909 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1910 struct dri2_egl_image *dri2_img;
1911 GLuint texture = (GLuint) (uintptr_t) buffer;
1912 _EGLImageAttribs attrs;
1913 GLuint depth;
1914 GLenum gl_target;
1915 unsigned error;
1916
1917 if (texture == 0) {
1918 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1919 return EGL_NO_IMAGE_KHR;
1920 }
1921
1922 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
1923 return EGL_NO_IMAGE_KHR;
1924
1925 switch (target) {
1926 case EGL_GL_TEXTURE_2D_KHR:
1927 if (!disp->Extensions.KHR_gl_texture_2D_image) {
1928 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1929 return EGL_NO_IMAGE_KHR;
1930 }
1931 depth = 0;
1932 gl_target = GL_TEXTURE_2D;
1933 break;
1934 case EGL_GL_TEXTURE_3D_KHR:
1935 if (!disp->Extensions.KHR_gl_texture_3D_image) {
1936 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1937 return EGL_NO_IMAGE_KHR;
1938 }
1939
1940 depth = attrs.GLTextureZOffset;
1941 gl_target = GL_TEXTURE_3D;
1942 break;
1943 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1944 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1945 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1946 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1947 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1948 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1949 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
1950 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1951 return EGL_NO_IMAGE_KHR;
1952 }
1953
1954 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1955 gl_target = GL_TEXTURE_CUBE_MAP;
1956 break;
1957 default:
1958 unreachable("Unexpected target in dri2_create_image_khr_texture()");
1959 return EGL_NO_IMAGE_KHR;
1960 }
1961
1962 dri2_img = malloc(sizeof *dri2_img);
1963 if (!dri2_img) {
1964 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1965 return EGL_NO_IMAGE_KHR;
1966 }
1967
1968 _eglInitImage(&dri2_img->base, disp);
1969
1970 dri2_img->dri_image =
1971 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1972 gl_target,
1973 texture,
1974 depth,
1975 attrs.GLTextureLevel,
1976 &error,
1977 dri2_img);
1978 dri2_create_image_khr_texture_error(error);
1979
1980 if (!dri2_img->dri_image) {
1981 free(dri2_img);
1982 return EGL_NO_IMAGE_KHR;
1983 }
1984 return &dri2_img->base;
1985 }
1986
1987 static EGLBoolean
1988 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1989 EGLint attribute, EGLint *value)
1990 {
1991 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1992 if (!dri2_dpy->vtbl->query_surface)
1993 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1994 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1995 }
1996
1997 static struct wl_buffer*
1998 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1999 _EGLImage *img)
2000 {
2001 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2002 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
2003 }
2004
2005 #ifdef HAVE_LIBDRM
2006 static _EGLImage *
2007 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2008 EGLClientBuffer buffer, const EGLint *attr_list)
2009 {
2010 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2011 EGLint format, name, pitch;
2012 _EGLImageAttribs attrs;
2013 __DRIimage *dri_image;
2014
2015 name = (EGLint) (uintptr_t) buffer;
2016
2017 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2018 return NULL;
2019
2020 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2021 attrs.DRMBufferStrideMESA <= 0) {
2022 _eglError(EGL_BAD_PARAMETER,
2023 "bad width, height or stride");
2024 return NULL;
2025 }
2026
2027 switch (attrs.DRMBufferFormatMESA) {
2028 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2029 format = __DRI_IMAGE_FORMAT_ARGB8888;
2030 pitch = attrs.DRMBufferStrideMESA;
2031 break;
2032 default:
2033 _eglError(EGL_BAD_PARAMETER,
2034 "dri2_create_image_khr: unsupported pixmap depth");
2035 return NULL;
2036 }
2037
2038 dri_image =
2039 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2040 attrs.Width,
2041 attrs.Height,
2042 format,
2043 name,
2044 pitch,
2045 NULL);
2046
2047 return dri2_create_image_from_dri(disp, dri_image);
2048 }
2049
2050 static EGLBoolean
2051 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2052 {
2053 /**
2054 * The spec says:
2055 *
2056 * "Required attributes and their values are as follows:
2057 *
2058 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2059 *
2060 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2061 * by drm_fourcc.h and used as the pixel_format parameter of the
2062 * drm_mode_fb_cmd2 ioctl."
2063 *
2064 * and
2065 *
2066 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2067 * incomplete, EGL_BAD_PARAMETER is generated."
2068 */
2069 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2070 !attrs->DMABufFourCC.IsPresent)
2071 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2072
2073 /**
2074 * Also:
2075 *
2076 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2077 * specified for a plane's pitch or offset isn't supported by EGL,
2078 * EGL_BAD_ACCESS is generated."
2079 */
2080 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2081 if (attrs->DMABufPlanePitches[i].IsPresent &&
2082 attrs->DMABufPlanePitches[i].Value <= 0)
2083 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2084 }
2085
2086 /**
2087 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2088 * attribute values may be given.
2089 *
2090 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2091 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2092 */
2093 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2094 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2095 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2096 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2097 }
2098
2099 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2100 * mandate it, we only accept the same modifier across all planes. */
2101 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2102 if (attrs->DMABufPlaneFds[i].IsPresent) {
2103 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2104 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2105 (attrs->DMABufPlaneModifiersLo[0].Value !=
2106 attrs->DMABufPlaneModifiersLo[i].Value) ||
2107 (attrs->DMABufPlaneModifiersHi[0].Value !=
2108 attrs->DMABufPlaneModifiersHi[i].Value))
2109 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2110 }
2111 }
2112
2113 return EGL_TRUE;
2114 }
2115
2116 /* Returns the total number of file descriptors. Zero indicates an error. */
2117 static unsigned
2118 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2119 {
2120 unsigned plane_n;
2121
2122 switch (attrs->DMABufFourCC.Value) {
2123 case DRM_FORMAT_R8:
2124 case DRM_FORMAT_RG88:
2125 case DRM_FORMAT_GR88:
2126 case DRM_FORMAT_R16:
2127 case DRM_FORMAT_GR1616:
2128 case DRM_FORMAT_RGB332:
2129 case DRM_FORMAT_BGR233:
2130 case DRM_FORMAT_XRGB4444:
2131 case DRM_FORMAT_XBGR4444:
2132 case DRM_FORMAT_RGBX4444:
2133 case DRM_FORMAT_BGRX4444:
2134 case DRM_FORMAT_ARGB4444:
2135 case DRM_FORMAT_ABGR4444:
2136 case DRM_FORMAT_RGBA4444:
2137 case DRM_FORMAT_BGRA4444:
2138 case DRM_FORMAT_XRGB1555:
2139 case DRM_FORMAT_XBGR1555:
2140 case DRM_FORMAT_RGBX5551:
2141 case DRM_FORMAT_BGRX5551:
2142 case DRM_FORMAT_ARGB1555:
2143 case DRM_FORMAT_ABGR1555:
2144 case DRM_FORMAT_RGBA5551:
2145 case DRM_FORMAT_BGRA5551:
2146 case DRM_FORMAT_RGB565:
2147 case DRM_FORMAT_BGR565:
2148 case DRM_FORMAT_RGB888:
2149 case DRM_FORMAT_BGR888:
2150 case DRM_FORMAT_XRGB8888:
2151 case DRM_FORMAT_XBGR8888:
2152 case DRM_FORMAT_RGBX8888:
2153 case DRM_FORMAT_BGRX8888:
2154 case DRM_FORMAT_ARGB8888:
2155 case DRM_FORMAT_ABGR8888:
2156 case DRM_FORMAT_RGBA8888:
2157 case DRM_FORMAT_BGRA8888:
2158 case DRM_FORMAT_XRGB2101010:
2159 case DRM_FORMAT_XBGR2101010:
2160 case DRM_FORMAT_RGBX1010102:
2161 case DRM_FORMAT_BGRX1010102:
2162 case DRM_FORMAT_ARGB2101010:
2163 case DRM_FORMAT_ABGR2101010:
2164 case DRM_FORMAT_RGBA1010102:
2165 case DRM_FORMAT_BGRA1010102:
2166 case DRM_FORMAT_YUYV:
2167 case DRM_FORMAT_YVYU:
2168 case DRM_FORMAT_UYVY:
2169 case DRM_FORMAT_VYUY:
2170 plane_n = 1;
2171 break;
2172 case DRM_FORMAT_NV12:
2173 case DRM_FORMAT_NV21:
2174 case DRM_FORMAT_NV16:
2175 case DRM_FORMAT_NV61:
2176 plane_n = 2;
2177 break;
2178 case DRM_FORMAT_YUV410:
2179 case DRM_FORMAT_YVU410:
2180 case DRM_FORMAT_YUV411:
2181 case DRM_FORMAT_YVU411:
2182 case DRM_FORMAT_YUV420:
2183 case DRM_FORMAT_YVU420:
2184 case DRM_FORMAT_YUV422:
2185 case DRM_FORMAT_YVU422:
2186 case DRM_FORMAT_YUV444:
2187 case DRM_FORMAT_YVU444:
2188 plane_n = 3;
2189 break;
2190 default:
2191 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2192 return 0;
2193 }
2194
2195 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2196 /**
2197 * The modifiers extension spec says:
2198 *
2199 * "Modifiers may modify any attribute of a buffer import, including
2200 * but not limited to adding extra planes to a format which
2201 * otherwise does not have those planes. As an example, a modifier
2202 * may add a plane for an external compression buffer to a
2203 * single-plane format. The exact meaning and effect of any
2204 * modifier is canonically defined by drm_fourcc.h, not as part of
2205 * this extension."
2206 */
2207 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2208 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2209 plane_n = i + 1;
2210 }
2211 }
2212
2213 /**
2214 * The spec says:
2215 *
2216 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2217 * incomplete, EGL_BAD_PARAMETER is generated."
2218 */
2219 for (unsigned i = 0; i < plane_n; ++i) {
2220 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2221 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2222 !attrs->DMABufPlanePitches[i].IsPresent) {
2223 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2224 return 0;
2225 }
2226 }
2227
2228 /**
2229 * The spec also says:
2230 *
2231 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2232 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2233 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2234 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2235 */
2236 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2237 if (attrs->DMABufPlaneFds[i].IsPresent ||
2238 attrs->DMABufPlaneOffsets[i].IsPresent ||
2239 attrs->DMABufPlanePitches[i].IsPresent) {
2240 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2241 return 0;
2242 }
2243 }
2244
2245 return plane_n;
2246 }
2247
2248 static EGLBoolean
2249 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2250 EGLint max, EGLint *formats, EGLint *count)
2251 {
2252 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2253 if (max < 0 || (max > 0 && formats == NULL))
2254 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2255
2256 if (dri2_dpy->image->base.version < 15 ||
2257 dri2_dpy->image->queryDmaBufFormats == NULL)
2258 return EGL_FALSE;
2259
2260 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2261 formats, count))
2262 return EGL_FALSE;
2263
2264 return EGL_TRUE;
2265 }
2266
2267 static EGLBoolean
2268 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2269 EGLint max, EGLuint64KHR *modifiers,
2270 EGLBoolean *external_only, EGLint *count)
2271 {
2272 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2273
2274 if (max < 0)
2275 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2276
2277 if (max > 0 && modifiers == NULL)
2278 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2279
2280 if (dri2_dpy->image->base.version < 15 ||
2281 dri2_dpy->image->queryDmaBufModifiers == NULL)
2282 return EGL_FALSE;
2283
2284 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2285 max, modifiers,
2286 (unsigned int *) external_only,
2287 count) == false)
2288 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2289
2290 return EGL_TRUE;
2291 }
2292
2293 /**
2294 * The spec says:
2295 *
2296 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2297 * EGL will take a reference to the dma_buf(s) which it will release at any
2298 * time while the EGLDisplay is initialized. It is the responsibility of the
2299 * application to close the dma_buf file descriptors."
2300 *
2301 * Therefore we must never close or otherwise modify the file descriptors.
2302 */
2303 _EGLImage *
2304 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2305 EGLClientBuffer buffer, const EGLint *attr_list)
2306 {
2307 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2308 _EGLImage *res;
2309 _EGLImageAttribs attrs;
2310 __DRIimage *dri_image;
2311 unsigned num_fds;
2312 int fds[DMA_BUF_MAX_PLANES];
2313 int pitches[DMA_BUF_MAX_PLANES];
2314 int offsets[DMA_BUF_MAX_PLANES];
2315 uint64_t modifier;
2316 bool has_modifier = false;
2317 unsigned error;
2318
2319 /**
2320 * The spec says:
2321 *
2322 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2323 * error EGL_BAD_PARAMETER is generated."
2324 */
2325 if (buffer != NULL) {
2326 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2327 return NULL;
2328 }
2329
2330 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2331 return NULL;
2332
2333 if (!dri2_check_dma_buf_attribs(&attrs))
2334 return NULL;
2335
2336 num_fds = dri2_check_dma_buf_format(&attrs);
2337 if (!num_fds)
2338 return NULL;
2339
2340 for (unsigned i = 0; i < num_fds; ++i) {
2341 fds[i] = attrs.DMABufPlaneFds[i].Value;
2342 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2343 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2344 }
2345
2346 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2347 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2348 * attrs.DMABufPlaneModifiersHi[0] */
2349 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2350 modifier = (uint64_t) attrs.DMABufPlaneModifiersHi[0].Value << 32;
2351 modifier |= (uint64_t) (attrs.DMABufPlaneModifiersLo[0].Value & 0xffffffff);
2352 has_modifier = true;
2353 }
2354
2355 if (has_modifier) {
2356 if (dri2_dpy->image->base.version < 15 ||
2357 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2358 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2359 return EGL_NO_IMAGE_KHR;
2360 }
2361 dri_image =
2362 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2363 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2364 modifier, fds, num_fds, pitches, offsets,
2365 attrs.DMABufYuvColorSpaceHint.Value,
2366 attrs.DMABufSampleRangeHint.Value,
2367 attrs.DMABufChromaHorizontalSiting.Value,
2368 attrs.DMABufChromaVerticalSiting.Value,
2369 &error,
2370 NULL);
2371 }
2372 else {
2373 dri_image =
2374 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2375 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2376 fds, num_fds, pitches, offsets,
2377 attrs.DMABufYuvColorSpaceHint.Value,
2378 attrs.DMABufSampleRangeHint.Value,
2379 attrs.DMABufChromaHorizontalSiting.Value,
2380 attrs.DMABufChromaVerticalSiting.Value,
2381 &error,
2382 NULL);
2383 }
2384 dri2_create_image_khr_texture_error(error);
2385
2386 if (!dri_image)
2387 return EGL_NO_IMAGE_KHR;
2388
2389 res = dri2_create_image_from_dri(disp, dri_image);
2390
2391 return res;
2392 }
2393 static _EGLImage *
2394 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2395 const EGLint *attr_list)
2396 {
2397 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2398 struct dri2_egl_image *dri2_img;
2399 _EGLImageAttribs attrs;
2400 unsigned int dri_use, valid_mask;
2401 int format;
2402
2403 (void) drv;
2404
2405 if (!attr_list) {
2406 _eglError(EGL_BAD_PARAMETER, __func__);
2407 return EGL_NO_IMAGE_KHR;
2408 }
2409
2410 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2411 return EGL_NO_IMAGE_KHR;
2412
2413 if (attrs.Width <= 0 || attrs.Height <= 0) {
2414 _eglError(EGL_BAD_PARAMETER, __func__);
2415 return EGL_NO_IMAGE_KHR;
2416 }
2417
2418 switch (attrs.DRMBufferFormatMESA) {
2419 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2420 format = __DRI_IMAGE_FORMAT_ARGB8888;
2421 break;
2422 default:
2423 _eglError(EGL_BAD_PARAMETER, __func__);
2424 return EGL_NO_IMAGE_KHR;
2425 }
2426
2427 valid_mask =
2428 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2429 EGL_DRM_BUFFER_USE_SHARE_MESA |
2430 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2431 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2432 _eglError(EGL_BAD_PARAMETER, __func__);
2433 return EGL_NO_IMAGE_KHR;
2434 }
2435
2436 dri_use = 0;
2437 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2438 dri_use |= __DRI_IMAGE_USE_SHARE;
2439 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2440 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2441 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2442 dri_use |= __DRI_IMAGE_USE_CURSOR;
2443
2444 dri2_img = malloc(sizeof *dri2_img);
2445 if (!dri2_img) {
2446 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2447 return EGL_NO_IMAGE_KHR;
2448 }
2449
2450 _eglInitImage(&dri2_img->base, disp);
2451
2452 dri2_img->dri_image =
2453 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2454 attrs.Width, attrs.Height,
2455 format, dri_use, dri2_img);
2456 if (dri2_img->dri_image == NULL) {
2457 free(dri2_img);
2458 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2459 return EGL_NO_IMAGE_KHR;
2460 }
2461
2462 return &dri2_img->base;
2463 }
2464
2465 static EGLBoolean
2466 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2467 EGLint *name, EGLint *handle, EGLint *stride)
2468 {
2469 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2470 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2471
2472 (void) drv;
2473
2474 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2475 __DRI_IMAGE_ATTRIB_NAME, name))
2476 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2477
2478 if (handle)
2479 dri2_dpy->image->queryImage(dri2_img->dri_image,
2480 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2481
2482 if (stride)
2483 dri2_dpy->image->queryImage(dri2_img->dri_image,
2484 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2485
2486 return EGL_TRUE;
2487 }
2488
2489 static EGLBoolean
2490 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2491 _EGLImage *img,
2492 EGLint *fourcc, EGLint *nplanes,
2493 EGLuint64KHR *modifiers)
2494 {
2495 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2496 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2497
2498 (void) drv;
2499
2500
2501 if (nplanes)
2502 dri2_dpy->image->queryImage(dri2_img->dri_image,
2503 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2504 if (fourcc)
2505 dri2_dpy->image->queryImage(dri2_img->dri_image,
2506 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2507
2508 if (modifiers)
2509 *modifiers = 0;
2510
2511 return EGL_TRUE;
2512 }
2513
2514 static EGLBoolean
2515 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2516 int *fds, EGLint *strides, EGLint *offsets)
2517 {
2518 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2519 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2520
2521 (void) drv;
2522
2523 /* rework later to provide multiple fds/strides/offsets */
2524 if (fds)
2525 dri2_dpy->image->queryImage(dri2_img->dri_image,
2526 __DRI_IMAGE_ATTRIB_FD, fds);
2527
2528 if (strides)
2529 dri2_dpy->image->queryImage(dri2_img->dri_image,
2530 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2531
2532 if (offsets) {
2533 int img_offset;
2534 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2535 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2536 if (ret)
2537 offsets[0] = img_offset;
2538 else
2539 offsets[0] = 0;
2540 }
2541
2542 return EGL_TRUE;
2543 }
2544
2545 #endif
2546
2547 _EGLImage *
2548 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2549 _EGLContext *ctx, EGLenum target,
2550 EGLClientBuffer buffer, const EGLint *attr_list)
2551 {
2552 (void) drv;
2553
2554 switch (target) {
2555 case EGL_GL_TEXTURE_2D_KHR:
2556 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2557 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2558 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2559 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2560 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2561 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2562 case EGL_GL_TEXTURE_3D_KHR:
2563 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2564 case EGL_GL_RENDERBUFFER_KHR:
2565 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2566 #ifdef HAVE_LIBDRM
2567 case EGL_DRM_BUFFER_MESA:
2568 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2569 case EGL_LINUX_DMA_BUF_EXT:
2570 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2571 #endif
2572 #ifdef HAVE_WAYLAND_PLATFORM
2573 case EGL_WAYLAND_BUFFER_WL:
2574 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2575 #endif
2576 default:
2577 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2578 return EGL_NO_IMAGE_KHR;
2579 }
2580 }
2581
2582 static EGLBoolean
2583 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2584 {
2585 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2586 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2587
2588 (void) drv;
2589
2590 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2591 free(dri2_img);
2592
2593 return EGL_TRUE;
2594 }
2595
2596 #ifdef HAVE_WAYLAND_PLATFORM
2597
2598 static void
2599 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2600 struct wl_drm_buffer *buffer)
2601 {
2602 _EGLDisplay *disp = user_data;
2603 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2604 __DRIimage *img;
2605 int dri_components = 0;
2606
2607 if (fd == -1)
2608 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2609 buffer->width,
2610 buffer->height,
2611 buffer->format,
2612 (int*)&name, 1,
2613 buffer->stride,
2614 buffer->offset,
2615 NULL);
2616 else
2617 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2618 buffer->width,
2619 buffer->height,
2620 buffer->format,
2621 &fd, 1,
2622 buffer->stride,
2623 buffer->offset,
2624 NULL);
2625
2626 if (img == NULL)
2627 return;
2628
2629 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2630
2631 buffer->driver_format = NULL;
2632 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2633 if (wl_drm_components[i].dri_components == dri_components)
2634 buffer->driver_format = &wl_drm_components[i];
2635
2636 if (buffer->driver_format == NULL)
2637 dri2_dpy->image->destroyImage(img);
2638 else
2639 buffer->driver_buffer = img;
2640 }
2641
2642 static void
2643 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2644 {
2645 _EGLDisplay *disp = user_data;
2646 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2647
2648 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2649 }
2650
2651 static struct wayland_drm_callbacks wl_drm_callbacks = {
2652 .authenticate = NULL,
2653 .reference_buffer = dri2_wl_reference_buffer,
2654 .release_buffer = dri2_wl_release_buffer
2655 };
2656
2657 static EGLBoolean
2658 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2659 struct wl_display *wl_dpy)
2660 {
2661 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2662 int flags = 0;
2663 uint64_t cap;
2664
2665 (void) drv;
2666
2667 if (dri2_dpy->wl_server_drm)
2668 return EGL_FALSE;
2669
2670 wl_drm_callbacks.authenticate =
2671 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2672
2673 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2674 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2675 dri2_dpy->image->base.version >= 7 &&
2676 dri2_dpy->image->createImageFromFds != NULL)
2677 flags |= WAYLAND_DRM_PRIME;
2678
2679 dri2_dpy->wl_server_drm =
2680 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2681 &wl_drm_callbacks, disp, flags);
2682
2683 if (!dri2_dpy->wl_server_drm)
2684 return EGL_FALSE;
2685
2686 #ifdef HAVE_DRM_PLATFORM
2687 /* We have to share the wl_drm instance with gbm, so gbm can convert
2688 * wl_buffers to gbm bos. */
2689 if (dri2_dpy->gbm_dri)
2690 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2691 #endif
2692
2693 return EGL_TRUE;
2694 }
2695
2696 static EGLBoolean
2697 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2698 struct wl_display *wl_dpy)
2699 {
2700 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2701
2702 (void) drv;
2703
2704 if (!dri2_dpy->wl_server_drm)
2705 return EGL_FALSE;
2706
2707 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2708 dri2_dpy->wl_server_drm = NULL;
2709
2710 return EGL_TRUE;
2711 }
2712
2713 static EGLBoolean
2714 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2715 struct wl_resource *buffer_resource,
2716 EGLint attribute, EGLint *value)
2717 {
2718 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2719 struct wl_drm_buffer *buffer;
2720 const struct wl_drm_components_descriptor *format;
2721
2722 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2723 if (!buffer)
2724 return EGL_FALSE;
2725
2726 format = buffer->driver_format;
2727 switch (attribute) {
2728 case EGL_TEXTURE_FORMAT:
2729 *value = format->components;
2730 return EGL_TRUE;
2731 case EGL_WIDTH:
2732 *value = buffer->width;
2733 return EGL_TRUE;
2734 case EGL_HEIGHT:
2735 *value = buffer->height;
2736 return EGL_TRUE;
2737 }
2738
2739 return EGL_FALSE;
2740 }
2741 #endif
2742
2743 static void
2744 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2745 {
2746 p_atomic_inc(&sync->refcount);
2747 }
2748
2749 static void
2750 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2751 struct dri2_egl_sync *dri2_sync)
2752 {
2753 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2754 switch (dri2_sync->base.Type) {
2755 case EGL_SYNC_REUSABLE_KHR:
2756 cnd_destroy(&dri2_sync->cond);
2757 break;
2758 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2759 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2760 close(dri2_sync->base.SyncFd);
2761 break;
2762 default:
2763 break;
2764 }
2765
2766 if (dri2_sync->fence)
2767 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2768
2769 free(dri2_sync);
2770 }
2771 }
2772
2773 static _EGLSync *
2774 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2775 EGLenum type, const EGLAttrib *attrib_list)
2776 {
2777 _EGLContext *ctx = _eglGetCurrentContext();
2778 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2779 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2780 struct dri2_egl_sync *dri2_sync;
2781 EGLint ret;
2782 pthread_condattr_t attr;
2783
2784 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2785 if (!dri2_sync) {
2786 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2787 return NULL;
2788 }
2789
2790 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2791 free(dri2_sync);
2792 return NULL;
2793 }
2794
2795 switch (type) {
2796 case EGL_SYNC_FENCE_KHR:
2797 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2798 if (!dri2_sync->fence) {
2799 /* Why did it fail? DRI doesn't return an error code, so we emit
2800 * a generic EGL error that doesn't communicate user error.
2801 */
2802 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2803 free(dri2_sync);
2804 return NULL;
2805 }
2806 break;
2807
2808 case EGL_SYNC_CL_EVENT_KHR:
2809 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2810 dri2_dpy->dri_screen,
2811 dri2_sync->base.CLEvent);
2812 /* this can only happen if the cl_event passed in is invalid. */
2813 if (!dri2_sync->fence) {
2814 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2815 free(dri2_sync);
2816 return NULL;
2817 }
2818
2819 /* the initial status must be "signaled" if the cl_event is signaled */
2820 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2821 dri2_sync->fence, 0, 0))
2822 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2823 break;
2824
2825 case EGL_SYNC_REUSABLE_KHR:
2826 /* intialize attr */
2827 ret = pthread_condattr_init(&attr);
2828
2829 if (ret) {
2830 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2831 free(dri2_sync);
2832 return NULL;
2833 }
2834
2835 /* change clock attribute to CLOCK_MONOTONIC */
2836 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2837
2838 if (ret) {
2839 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2840 free(dri2_sync);
2841 return NULL;
2842 }
2843
2844 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2845
2846 if (ret) {
2847 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2848 free(dri2_sync);
2849 return NULL;
2850 }
2851
2852 /* initial status of reusable sync must be "unsignaled" */
2853 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2854 break;
2855
2856 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2857 if (dri2_dpy->fence->create_fence_fd) {
2858 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2859 dri2_ctx->dri_context,
2860 dri2_sync->base.SyncFd);
2861 }
2862 if (!dri2_sync->fence) {
2863 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2864 free(dri2_sync);
2865 return NULL;
2866 }
2867 break;
2868 }
2869
2870 p_atomic_set(&dri2_sync->refcount, 1);
2871 return &dri2_sync->base;
2872 }
2873
2874 static EGLBoolean
2875 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2876 {
2877 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2878 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2879 EGLint ret = EGL_TRUE;
2880 EGLint err;
2881
2882 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2883 * then unlock all threads possibly blocked by the reusable sync before
2884 * destroying it.
2885 */
2886 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2887 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2888 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2889 /* unblock all threads currently blocked by sync */
2890 err = cnd_broadcast(&dri2_sync->cond);
2891
2892 if (err) {
2893 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2894 ret = EGL_FALSE;
2895 }
2896 }
2897
2898 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2899
2900 return ret;
2901 }
2902
2903 static EGLint
2904 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2905 {
2906 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2907 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2908
2909 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2910
2911 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2912 /* try to retrieve the actual native fence fd.. if rendering is
2913 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2914 */
2915 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2916 dri2_sync->fence);
2917 }
2918
2919 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2920 /* if native fence fd still not created, return an error: */
2921 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2922 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2923 }
2924
2925 return dup(sync->SyncFd);
2926 }
2927
2928 static EGLint
2929 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2930 EGLint flags, EGLTime timeout)
2931 {
2932 _EGLContext *ctx = _eglGetCurrentContext();
2933 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2934 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2935 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2936 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2937 unsigned wait_flags = 0;
2938
2939 /* timespecs for cnd_timedwait */
2940 struct timespec current;
2941 xtime expire;
2942
2943 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2944
2945 /* The EGL_KHR_fence_sync spec states:
2946 *
2947 * "If no context is current for the bound API,
2948 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2949 */
2950 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2951 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2952
2953 /* the sync object should take a reference while waiting */
2954 dri2_egl_ref_sync(dri2_sync);
2955
2956 switch (sync->Type) {
2957 case EGL_SYNC_FENCE_KHR:
2958 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2959 case EGL_SYNC_CL_EVENT_KHR:
2960 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2961 dri2_sync->fence, wait_flags,
2962 timeout))
2963 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2964 else
2965 ret = EGL_TIMEOUT_EXPIRED_KHR;
2966 break;
2967
2968 case EGL_SYNC_REUSABLE_KHR:
2969 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2970 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2971 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2972 dri2_drv->glFlush();
2973 }
2974
2975 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2976 if (timeout == EGL_FOREVER_KHR) {
2977 mtx_lock(&dri2_sync->mutex);
2978 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2979 mtx_unlock(&dri2_sync->mutex);
2980 } else {
2981 /* if reusable sync has not been yet signaled */
2982 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2983 clock_gettime(CLOCK_MONOTONIC, &current);
2984
2985 /* calculating when to expire */
2986 expire.nsec = timeout % 1000000000L;
2987 expire.sec = timeout / 1000000000L;
2988
2989 expire.nsec += current.tv_nsec;
2990 expire.sec += current.tv_sec;
2991
2992 /* expire.nsec now is a number between 0 and 1999999998 */
2993 if (expire.nsec > 999999999L) {
2994 expire.sec++;
2995 expire.nsec -= 1000000000L;
2996 }
2997
2998 mtx_lock(&dri2_sync->mutex);
2999 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3000 mtx_unlock(&dri2_sync->mutex);
3001
3002 if (ret == thrd_busy) {
3003 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3004 ret = EGL_TIMEOUT_EXPIRED_KHR;
3005 } else {
3006 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3007 ret = EGL_FALSE;
3008 }
3009 }
3010 }
3011 }
3012 break;
3013 }
3014 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3015
3016 return ret;
3017 }
3018
3019 static EGLBoolean
3020 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
3021 EGLenum mode)
3022 {
3023 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3024 EGLint ret;
3025
3026 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3027 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3028
3029 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3030 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3031
3032 dri2_sync->base.SyncStatus = mode;
3033
3034 if (mode == EGL_SIGNALED_KHR) {
3035 ret = cnd_broadcast(&dri2_sync->cond);
3036
3037 /* fail to broadcast */
3038 if (ret)
3039 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3040 }
3041
3042 return EGL_TRUE;
3043 }
3044
3045 static EGLint
3046 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
3047 {
3048 _EGLContext *ctx = _eglGetCurrentContext();
3049 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3050 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3051 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3052
3053 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3054 dri2_sync->fence, 0);
3055 return EGL_TRUE;
3056 }
3057
3058 static int
3059 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
3060 struct mesa_glinterop_device_info *out)
3061 {
3062 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3063 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3064
3065 if (!dri2_dpy->interop)
3066 return MESA_GLINTEROP_UNSUPPORTED;
3067
3068 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3069 }
3070
3071 static int
3072 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
3073 struct mesa_glinterop_export_in *in,
3074 struct mesa_glinterop_export_out *out)
3075 {
3076 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
3077 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3078
3079 if (!dri2_dpy->interop)
3080 return MESA_GLINTEROP_UNSUPPORTED;
3081
3082 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3083 }
3084
3085 static void
3086 dri2_unload(_EGLDriver *drv)
3087 {
3088 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3089
3090 dlclose(dri2_drv->handle);
3091 free(dri2_drv);
3092 }
3093
3094 static EGLBoolean
3095 dri2_load(_EGLDriver *drv)
3096 {
3097 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
3098 #ifdef HAVE_ANDROID_PLATFORM
3099 const char *libname = "libglapi.so";
3100 #elif defined(__APPLE__)
3101 const char *libname = "libglapi.0.dylib";
3102 #elif defined(__CYGWIN__)
3103 const char *libname = "cygglapi-0.dll";
3104 #else
3105 const char *libname = "libglapi.so.0";
3106 #endif
3107 void *handle;
3108
3109 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
3110 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
3111 if (!handle) {
3112 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
3113 goto no_handle;
3114 }
3115
3116 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
3117 dlsym(handle, "_glapi_get_proc_address");
3118
3119 /* if glapi is not available, loading DRI drivers will fail */
3120 if (!dri2_drv->get_proc_address) {
3121 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
3122 goto no_symbol;
3123 }
3124
3125 dri2_drv->glFlush = (void (*)(void))
3126 dri2_drv->get_proc_address("glFlush");
3127
3128 /* if glFlush is not available things are horribly broken */
3129 if (!dri2_drv->glFlush) {
3130 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
3131 goto no_symbol;
3132 }
3133
3134 dri2_drv->handle = handle;
3135 return EGL_TRUE;
3136
3137 no_symbol:
3138 dlclose(handle);
3139 no_handle:
3140 return EGL_FALSE;
3141 }
3142
3143 /**
3144 * This is the main entrypoint into the driver, called by libEGL.
3145 * Create a new _EGLDriver object and init its dispatch table.
3146 */
3147 _EGLDriver *
3148 _eglBuiltInDriverDRI2(const char *args)
3149 {
3150 struct dri2_egl_driver *dri2_drv;
3151
3152 (void) args;
3153
3154 dri2_drv = calloc(1, sizeof *dri2_drv);
3155 if (!dri2_drv)
3156 return NULL;
3157
3158 if (!dri2_load(&dri2_drv->base)) {
3159 free(dri2_drv);
3160 return NULL;
3161 }
3162
3163 _eglInitDriverFallbacks(&dri2_drv->base);
3164 dri2_drv->base.API.Initialize = dri2_initialize;
3165 dri2_drv->base.API.Terminate = dri2_terminate;
3166 dri2_drv->base.API.CreateContext = dri2_create_context;
3167 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
3168 dri2_drv->base.API.MakeCurrent = dri2_make_current;
3169 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
3170 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
3171 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3172 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
3173 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
3174 dri2_drv->base.API.WaitClient = dri2_wait_client;
3175 dri2_drv->base.API.WaitNative = dri2_wait_native;
3176 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
3177 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
3178 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
3179 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
3180 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3181 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3182 dri2_drv->base.API.SetDamageRegion = dri2_set_damage_region;
3183 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
3184 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
3185 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
3186 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
3187 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
3188 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3189 dri2_drv->base.API.QuerySurface = dri2_query_surface;
3190 #ifdef HAVE_LIBDRM
3191 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3192 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3193 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3194 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3195 dri2_drv->base.API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3196 dri2_drv->base.API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3197 #endif
3198 #ifdef HAVE_WAYLAND_PLATFORM
3199 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3200 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3201 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3202 #endif
3203 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3204 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
3205 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
3206 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
3207 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
3208 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
3209 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3210 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
3211 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3212
3213 dri2_drv->base.Name = "DRI2";
3214 dri2_drv->base.Unload = dri2_unload;
3215
3216 return &dri2_drv->base;
3217 }