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egl: implement EGL part of interop interface (v2)
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include "GL/mesa_glinterop.h"
50 #include <sys/types.h>
51 #include <sys/stat.h>
52
53 #ifdef HAVE_WAYLAND_PLATFORM
54 #include "wayland-drm.h"
55 #include "wayland-drm-client-protocol.h"
56 #endif
57
58 #include "egl_dri2.h"
59 #include "util/u_atomic.h"
60
61 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
62 * some of the definitions here so that building Mesa won't bleeding-edge
63 * kernel headers.
64 */
65 #ifndef DRM_FORMAT_R8
66 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
67 #endif
68
69 #ifndef DRM_FORMAT_RG88
70 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
71 #endif
72
73 #ifndef DRM_FORMAT_GR88
74 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
75 #endif
76
77 const __DRIuseInvalidateExtension use_invalidate = {
78 .base = { __DRI_USE_INVALIDATE, 1 }
79 };
80
81 EGLint dri2_to_egl_attribute_map[] = {
82 0,
83 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
84 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
85 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
86 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
87 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
88 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
89 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
90 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
91 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
92 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
93 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
94 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
95 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
96 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
97 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
98 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
99 0, /* __DRI_ATTRIB_RENDER_TYPE, */
100 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
101 0, /* __DRI_ATTRIB_CONFORMANT */
102 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
103 0, /* __DRI_ATTRIB_STEREO */
104 0, /* __DRI_ATTRIB_AUX_BUFFERS */
105 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
106 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
108 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
109 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
110 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
111 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
112 0, /* __DRI_ATTRIB_RED_MASK */
113 0, /* __DRI_ATTRIB_GREEN_MASK */
114 0, /* __DRI_ATTRIB_BLUE_MASK */
115 0, /* __DRI_ATTRIB_ALPHA_MASK */
116 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
117 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
118 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
119 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
120 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
121 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
122 0, /* __DRI_ATTRIB_SWAP_METHOD */
123 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
124 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
125 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
126 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
127 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
128 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
129 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
130 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
131 };
132
133 const __DRIconfig *
134 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
135 EGLenum colorspace)
136 {
137 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
138
139 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
140 conf->dri_single_config[srgb];
141 }
142
143 static EGLBoolean
144 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
145 {
146 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
147 return EGL_FALSE;
148
149 if (!_eglMatchConfig(conf, criteria))
150 return EGL_FALSE;
151
152 return EGL_TRUE;
153 }
154
155 struct dri2_egl_config *
156 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
157 EGLint surface_type, const EGLint *attr_list,
158 const unsigned int *rgba_masks)
159 {
160 struct dri2_egl_config *conf;
161 struct dri2_egl_display *dri2_dpy;
162 _EGLConfig base;
163 unsigned int attrib, value, double_buffer;
164 bool srgb = false;
165 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
166 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
167 _EGLConfig *matching_config;
168 EGLint num_configs = 0;
169 EGLint config_id;
170 int i;
171
172 dri2_dpy = disp->DriverData;
173 _eglInitConfig(&base, disp, id);
174
175 i = 0;
176 double_buffer = 0;
177 bind_to_texture_rgb = 0;
178 bind_to_texture_rgba = 0;
179
180 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
181 switch (attrib) {
182 case __DRI_ATTRIB_RENDER_TYPE:
183 if (value & __DRI_ATTRIB_RGBA_BIT)
184 value = EGL_RGB_BUFFER;
185 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
186 value = EGL_LUMINANCE_BUFFER;
187 else
188 return NULL;
189 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
190 break;
191
192 case __DRI_ATTRIB_CONFIG_CAVEAT:
193 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
194 value = EGL_NON_CONFORMANT_CONFIG;
195 else if (value & __DRI_ATTRIB_SLOW_BIT)
196 value = EGL_SLOW_CONFIG;
197 else
198 value = EGL_NONE;
199 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
200 break;
201
202 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
203 bind_to_texture_rgb = value;
204 break;
205
206 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
207 bind_to_texture_rgba = value;
208 break;
209
210 case __DRI_ATTRIB_DOUBLE_BUFFER:
211 double_buffer = value;
212 break;
213
214 case __DRI_ATTRIB_RED_MASK:
215 dri_masks[0] = value;
216 break;
217
218 case __DRI_ATTRIB_GREEN_MASK:
219 dri_masks[1] = value;
220 break;
221
222 case __DRI_ATTRIB_BLUE_MASK:
223 dri_masks[2] = value;
224 break;
225
226 case __DRI_ATTRIB_ALPHA_MASK:
227 dri_masks[3] = value;
228 break;
229
230 case __DRI_ATTRIB_ACCUM_RED_SIZE:
231 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
232 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
233 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
234 /* Don't expose visuals with the accumulation buffer. */
235 if (value > 0)
236 return NULL;
237 break;
238
239 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
240 srgb = value != 0;
241 if (!disp->Extensions.KHR_gl_colorspace && srgb)
242 return NULL;
243 break;
244
245 default:
246 key = dri2_to_egl_attribute_map[attrib];
247 if (key != 0)
248 _eglSetConfigKey(&base, key, value);
249 break;
250 }
251 }
252
253 if (attr_list)
254 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
255 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
256
257 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
258 return NULL;
259
260 base.NativeRenderable = EGL_TRUE;
261
262 base.SurfaceType = surface_type;
263 if (surface_type & (EGL_PBUFFER_BIT |
264 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
265 base.BindToTextureRGB = bind_to_texture_rgb;
266 if (base.AlphaSize > 0)
267 base.BindToTextureRGBA = bind_to_texture_rgba;
268 }
269
270 base.RenderableType = disp->ClientAPIs;
271 base.Conformant = disp->ClientAPIs;
272
273 base.MinSwapInterval = dri2_dpy->min_swap_interval;
274 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
275
276 if (!_eglValidateConfig(&base, EGL_FALSE)) {
277 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
278 return NULL;
279 }
280
281 config_id = base.ConfigID;
282 base.ConfigID = EGL_DONT_CARE;
283 base.SurfaceType = EGL_DONT_CARE;
284 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
285 (_EGLArrayForEach) dri2_match_config, &base);
286
287 if (num_configs == 1) {
288 conf = (struct dri2_egl_config *) matching_config;
289
290 if (double_buffer && !conf->dri_double_config[srgb])
291 conf->dri_double_config[srgb] = dri_config;
292 else if (!double_buffer && !conf->dri_single_config[srgb])
293 conf->dri_single_config[srgb] = dri_config;
294 else
295 /* a similar config type is already added (unlikely) => discard */
296 return NULL;
297 }
298 else if (num_configs == 0) {
299 conf = calloc(1, sizeof *conf);
300 if (conf == NULL)
301 return NULL;
302
303 if (double_buffer)
304 conf->dri_double_config[srgb] = dri_config;
305 else
306 conf->dri_single_config[srgb] = dri_config;
307
308 memcpy(&conf->base, &base, sizeof base);
309 conf->base.SurfaceType = 0;
310 conf->base.ConfigID = config_id;
311
312 _eglLinkConfig(&conf->base);
313 }
314 else {
315 assert(0);
316 return NULL;
317 }
318
319 if (double_buffer) {
320 surface_type &= ~EGL_PIXMAP_BIT;
321 }
322
323 conf->base.SurfaceType |= surface_type;
324
325 return conf;
326 }
327
328 __DRIimage *
329 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
330 {
331 _EGLDisplay *disp = data;
332 struct dri2_egl_image *dri2_img;
333 _EGLImage *img;
334
335 (void) screen;
336
337 img = _eglLookupImage(image, disp);
338 if (img == NULL) {
339 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
340 return NULL;
341 }
342
343 dri2_img = dri2_egl_image(image);
344
345 return dri2_img->dri_image;
346 }
347
348 const __DRIimageLookupExtension image_lookup_extension = {
349 .base = { __DRI_IMAGE_LOOKUP, 1 },
350
351 .lookupEGLImage = dri2_lookup_egl_image
352 };
353
354 struct dri2_extension_match {
355 const char *name;
356 int version;
357 int offset;
358 };
359
360 static struct dri2_extension_match dri3_driver_extensions[] = {
361 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
362 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
363 { NULL, 0, 0 }
364 };
365
366 static struct dri2_extension_match dri2_driver_extensions[] = {
367 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
368 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
369 { NULL, 0, 0 }
370 };
371
372 static struct dri2_extension_match dri2_core_extensions[] = {
373 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
374 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
375 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
376 { NULL, 0, 0 }
377 };
378
379 static struct dri2_extension_match swrast_driver_extensions[] = {
380 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
381 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
382 { NULL, 0, 0 }
383 };
384
385 static struct dri2_extension_match swrast_core_extensions[] = {
386 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
387 { NULL, 0, 0 }
388 };
389
390 static EGLBoolean
391 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
392 struct dri2_extension_match *matches,
393 const __DRIextension **extensions)
394 {
395 int i, j, ret = EGL_TRUE;
396 void *field;
397
398 for (i = 0; extensions[i]; i++) {
399 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
400 for (j = 0; matches[j].name; j++) {
401 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
402 extensions[i]->version >= matches[j].version) {
403 field = ((char *) dri2_dpy + matches[j].offset);
404 *(const __DRIextension **) field = extensions[i];
405 _eglLog(_EGL_INFO, "found extension %s version %d",
406 extensions[i]->name, extensions[i]->version);
407 }
408 }
409 }
410
411 for (j = 0; matches[j].name; j++) {
412 field = ((char *) dri2_dpy + matches[j].offset);
413 if (*(const __DRIextension **) field == NULL) {
414 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
415 matches[j].name, matches[j].version);
416 ret = EGL_FALSE;
417 }
418 }
419
420 return ret;
421 }
422
423 static const __DRIextension **
424 dri2_open_driver(_EGLDisplay *disp)
425 {
426 struct dri2_egl_display *dri2_dpy = disp->DriverData;
427 const __DRIextension **extensions = NULL;
428 char path[PATH_MAX], *search_paths, *p, *next, *end;
429 char *get_extensions_name;
430 const __DRIextension **(*get_extensions)(void);
431
432 search_paths = NULL;
433 if (geteuid() == getuid()) {
434 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
435 search_paths = getenv("LIBGL_DRIVERS_PATH");
436 }
437 if (search_paths == NULL)
438 search_paths = DEFAULT_DRIVER_DIR;
439
440 dri2_dpy->driver = NULL;
441 end = search_paths + strlen(search_paths);
442 for (p = search_paths; p < end; p = next + 1) {
443 int len;
444 next = strchr(p, ':');
445 if (next == NULL)
446 next = end;
447
448 len = next - p;
449 #if GLX_USE_TLS
450 snprintf(path, sizeof path,
451 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
452 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
453 #endif
454 if (dri2_dpy->driver == NULL) {
455 snprintf(path, sizeof path,
456 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
457 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
458 if (dri2_dpy->driver == NULL)
459 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
460 }
461 /* not need continue to loop all paths once the driver is found */
462 if (dri2_dpy->driver != NULL)
463 break;
464
465 #ifdef ANDROID
466 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
467 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
468 if (dri2_dpy->driver == NULL)
469 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
470 else
471 break;
472 #endif
473 }
474
475 if (dri2_dpy->driver == NULL) {
476 _eglLog(_EGL_WARNING,
477 "DRI2: failed to open %s (search paths %s)",
478 dri2_dpy->driver_name, search_paths);
479 return NULL;
480 }
481
482 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
483
484 if (asprintf(&get_extensions_name, "%s_%s",
485 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
486 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
487 if (get_extensions) {
488 extensions = get_extensions();
489 } else {
490 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
491 get_extensions_name, dlerror());
492 }
493 free(get_extensions_name);
494 }
495
496 if (!extensions)
497 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
498 if (extensions == NULL) {
499 _eglLog(_EGL_WARNING,
500 "DRI2: driver exports no extensions (%s)", dlerror());
501 dlclose(dri2_dpy->driver);
502 }
503
504 return extensions;
505 }
506
507 EGLBoolean
508 dri2_load_driver_dri3(_EGLDisplay *disp)
509 {
510 struct dri2_egl_display *dri2_dpy = disp->DriverData;
511 const __DRIextension **extensions;
512
513 extensions = dri2_open_driver(disp);
514 if (!extensions)
515 return EGL_FALSE;
516
517 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions)) {
518 dlclose(dri2_dpy->driver);
519 return EGL_FALSE;
520 }
521 dri2_dpy->driver_extensions = extensions;
522
523 return EGL_TRUE;
524 }
525
526 EGLBoolean
527 dri2_load_driver(_EGLDisplay *disp)
528 {
529 struct dri2_egl_display *dri2_dpy = disp->DriverData;
530 const __DRIextension **extensions;
531
532 extensions = dri2_open_driver(disp);
533 if (!extensions)
534 return EGL_FALSE;
535
536 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
537 dlclose(dri2_dpy->driver);
538 return EGL_FALSE;
539 }
540 dri2_dpy->driver_extensions = extensions;
541
542 return EGL_TRUE;
543 }
544
545 EGLBoolean
546 dri2_load_driver_swrast(_EGLDisplay *disp)
547 {
548 struct dri2_egl_display *dri2_dpy = disp->DriverData;
549 const __DRIextension **extensions;
550
551 extensions = dri2_open_driver(disp);
552 if (!extensions)
553 return EGL_FALSE;
554
555 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
556 dlclose(dri2_dpy->driver);
557 return EGL_FALSE;
558 }
559 dri2_dpy->driver_extensions = extensions;
560
561 return EGL_TRUE;
562 }
563
564 static unsigned
565 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
566 {
567 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
568 unsigned int value = 0;
569
570 if (!rendererQuery ||
571 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
572 return 0;
573
574 return value;
575 }
576
577 void
578 dri2_setup_screen(_EGLDisplay *disp)
579 {
580 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
581 unsigned int api_mask;
582
583 if (dri2_dpy->image_driver) {
584 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
585 } else if (dri2_dpy->dri2) {
586 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
587 } else {
588 assert(dri2_dpy->swrast);
589 api_mask = 1 << __DRI_API_OPENGL |
590 1 << __DRI_API_GLES |
591 1 << __DRI_API_GLES2 |
592 1 << __DRI_API_GLES3;
593 }
594
595 disp->ClientAPIs = 0;
596 if (api_mask & (1 <<__DRI_API_OPENGL))
597 disp->ClientAPIs |= EGL_OPENGL_BIT;
598 if (api_mask & (1 <<__DRI_API_GLES))
599 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
600 if (api_mask & (1 << __DRI_API_GLES2))
601 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
602 if (api_mask & (1 << __DRI_API_GLES3))
603 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
604
605 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
606 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
607 disp->Extensions.MESA_configless_context = EGL_TRUE;
608
609 if (dri2_renderer_query_integer(dri2_dpy,
610 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
611 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
612
613 if (dri2_dpy->image_driver ||
614 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
615 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
616 disp->Extensions.KHR_create_context = EGL_TRUE;
617
618 if (dri2_dpy->robustness)
619 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
620 }
621
622 if (dri2_dpy->fence) {
623 disp->Extensions.KHR_fence_sync = EGL_TRUE;
624 disp->Extensions.KHR_wait_sync = EGL_TRUE;
625 if (dri2_dpy->fence->get_fence_from_cl_event)
626 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
627 }
628
629 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
630
631 if (dri2_dpy->image) {
632 if (dri2_dpy->image->base.version >= 10 &&
633 dri2_dpy->image->getCapabilities != NULL) {
634 int capabilities;
635
636 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
637 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
638
639 if (dri2_dpy->image->base.version >= 11)
640 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
641 } else {
642 disp->Extensions.MESA_drm_image = EGL_TRUE;
643 if (dri2_dpy->image->base.version >= 11)
644 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
645 }
646
647 disp->Extensions.KHR_image_base = EGL_TRUE;
648 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
649 if (dri2_dpy->image->base.version >= 5 &&
650 dri2_dpy->image->createImageFromTexture) {
651 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
652 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
653 }
654 if (dri2_renderer_query_integer(dri2_dpy,
655 __DRI2_RENDERER_HAS_TEXTURE_3D))
656 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
657 #ifdef HAVE_LIBDRM
658 if (dri2_dpy->image->base.version >= 8 &&
659 dri2_dpy->image->createImageFromDmaBufs) {
660 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
661 }
662 #endif
663 }
664 }
665
666 /* All platforms but DRM call this function to create the screen, query the
667 * dri extensions, setup the vtables and populate the driver_configs.
668 * DRM inherits all that information from its display - GBM.
669 */
670 EGLBoolean
671 dri2_create_screen(_EGLDisplay *disp)
672 {
673 const __DRIextension **extensions;
674 struct dri2_egl_display *dri2_dpy;
675 unsigned i;
676
677 dri2_dpy = disp->DriverData;
678
679 if (dri2_dpy->image_driver) {
680 dri2_dpy->dri_screen =
681 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
682 dri2_dpy->extensions,
683 dri2_dpy->driver_extensions,
684 &dri2_dpy->driver_configs,
685 disp);
686 } else if (dri2_dpy->dri2) {
687 if (dri2_dpy->dri2->base.version >= 4) {
688 dri2_dpy->dri_screen =
689 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
690 dri2_dpy->extensions,
691 dri2_dpy->driver_extensions,
692 &dri2_dpy->driver_configs, disp);
693 } else {
694 dri2_dpy->dri_screen =
695 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
696 dri2_dpy->extensions,
697 &dri2_dpy->driver_configs, disp);
698 }
699 } else {
700 assert(dri2_dpy->swrast);
701 if (dri2_dpy->swrast->base.version >= 4) {
702 dri2_dpy->dri_screen =
703 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
704 dri2_dpy->driver_extensions,
705 &dri2_dpy->driver_configs, disp);
706 } else {
707 dri2_dpy->dri_screen =
708 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
709 &dri2_dpy->driver_configs, disp);
710 }
711 }
712
713 if (dri2_dpy->dri_screen == NULL) {
714 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
715 return EGL_FALSE;
716 }
717
718 dri2_dpy->own_dri_screen = 1;
719
720 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
721
722 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
723 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
724 goto cleanup_dri_screen;
725 } else {
726 assert(dri2_dpy->swrast);
727 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
728 goto cleanup_dri_screen;
729 }
730
731 for (i = 0; extensions[i]; i++) {
732 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
733 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
734 }
735 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
736 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
737 }
738 if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
739 dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
740 }
741 if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
742 dri2_dpy->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
743 }
744 if (strcmp(extensions[i]->name, __DRI2_INTEROP) == 0)
745 dri2_dpy->interop = (__DRI2interopExtension *) extensions[i];
746 }
747
748 dri2_setup_screen(disp);
749
750 return EGL_TRUE;
751
752 cleanup_dri_screen:
753 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
754
755 return EGL_FALSE;
756 }
757
758 /**
759 * Called via eglInitialize(), GLX_drv->API.Initialize().
760 */
761 static EGLBoolean
762 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
763 {
764 /* not until swrast_dri is supported */
765 if (disp->Options.UseFallback)
766 return EGL_FALSE;
767
768 switch (disp->Platform) {
769 #ifdef HAVE_SURFACELESS_PLATFORM
770 case _EGL_PLATFORM_SURFACELESS:
771 if (disp->Options.TestOnly)
772 return EGL_TRUE;
773 return dri2_initialize_surfaceless(drv, disp);
774 #endif
775
776 #ifdef HAVE_X11_PLATFORM
777 case _EGL_PLATFORM_X11:
778 if (disp->Options.TestOnly)
779 return EGL_TRUE;
780 return dri2_initialize_x11(drv, disp);
781 #endif
782
783 #ifdef HAVE_DRM_PLATFORM
784 case _EGL_PLATFORM_DRM:
785 if (disp->Options.TestOnly)
786 return EGL_TRUE;
787 return dri2_initialize_drm(drv, disp);
788 #endif
789 #ifdef HAVE_WAYLAND_PLATFORM
790 case _EGL_PLATFORM_WAYLAND:
791 if (disp->Options.TestOnly)
792 return EGL_TRUE;
793 return dri2_initialize_wayland(drv, disp);
794 #endif
795 #ifdef HAVE_ANDROID_PLATFORM
796 case _EGL_PLATFORM_ANDROID:
797 if (disp->Options.TestOnly)
798 return EGL_TRUE;
799 return dri2_initialize_android(drv, disp);
800 #endif
801
802 default:
803 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
804 return EGL_FALSE;
805 }
806 }
807
808 /**
809 * Called via eglTerminate(), drv->API.Terminate().
810 */
811 static EGLBoolean
812 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
813 {
814 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
815 unsigned i;
816
817 _eglReleaseDisplayResources(drv, disp);
818 _eglCleanupDisplay(disp);
819
820 if (dri2_dpy->own_dri_screen)
821 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
822 if (dri2_dpy->fd >= 0)
823 close(dri2_dpy->fd);
824 if (dri2_dpy->driver)
825 dlclose(dri2_dpy->driver);
826 free(dri2_dpy->device_name);
827 free(dri2_dpy->driver_name);
828
829 switch (disp->Platform) {
830 #ifdef HAVE_X11_PLATFORM
831 case _EGL_PLATFORM_X11:
832 if (dri2_dpy->own_device) {
833 xcb_disconnect(dri2_dpy->conn);
834 }
835 break;
836 #endif
837 #ifdef HAVE_DRM_PLATFORM
838 case _EGL_PLATFORM_DRM:
839 if (dri2_dpy->own_device) {
840 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
841 }
842 break;
843 #endif
844 #ifdef HAVE_WAYLAND_PLATFORM
845 case _EGL_PLATFORM_WAYLAND:
846 if (dri2_dpy->wl_drm)
847 wl_drm_destroy(dri2_dpy->wl_drm);
848 if (dri2_dpy->wl_shm)
849 wl_shm_destroy(dri2_dpy->wl_shm);
850 wl_registry_destroy(dri2_dpy->wl_registry);
851 wl_event_queue_destroy(dri2_dpy->wl_queue);
852 if (dri2_dpy->own_device) {
853 wl_display_disconnect(dri2_dpy->wl_dpy);
854 }
855 break;
856 #endif
857 default:
858 break;
859 }
860
861 /* The drm platform does not create the screen/driver_configs but reuses
862 * the ones from the gbm device. As such the gbm itself is responsible
863 * for the cleanup.
864 */
865 if (disp->Platform != _EGL_PLATFORM_DRM) {
866 for (i = 0; dri2_dpy->driver_configs[i]; i++)
867 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
868 free(dri2_dpy->driver_configs);
869 }
870 free(dri2_dpy);
871 disp->DriverData = NULL;
872
873 return EGL_TRUE;
874 }
875
876 /**
877 * Set the error code after a call to
878 * dri2_egl_display::dri2::createContextAttribs.
879 */
880 static void
881 dri2_create_context_attribs_error(int dri_error)
882 {
883 EGLint egl_error;
884
885 switch (dri_error) {
886 case __DRI_CTX_ERROR_SUCCESS:
887 return;
888
889 case __DRI_CTX_ERROR_NO_MEMORY:
890 egl_error = EGL_BAD_ALLOC;
891 break;
892
893 /* From the EGL_KHR_create_context spec, section "Errors":
894 *
895 * * If <config> does not support a client API context compatible
896 * with the requested API major and minor version, [...] context flags,
897 * and context reset notification behavior (for client API types where
898 * these attributes are supported), then an EGL_BAD_MATCH error is
899 * generated.
900 *
901 * * If an OpenGL ES context is requested and the values for
902 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
903 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
904 * is not defined, than an EGL_BAD_MATCH error is generated.
905 *
906 * * If an OpenGL context is requested, the requested version is
907 * greater than 3.2, and the value for attribute
908 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
909 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
910 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
911 * one of these bits set; or if the implementation does not support
912 * the requested profile, then an EGL_BAD_MATCH error is generated.
913 */
914 case __DRI_CTX_ERROR_BAD_API:
915 case __DRI_CTX_ERROR_BAD_VERSION:
916 case __DRI_CTX_ERROR_BAD_FLAG:
917 egl_error = EGL_BAD_MATCH;
918 break;
919
920 /* From the EGL_KHR_create_context spec, section "Errors":
921 *
922 * * If an attribute name or attribute value in <attrib_list> is not
923 * recognized (including unrecognized bits in bitmask attributes),
924 * then an EGL_BAD_ATTRIBUTE error is generated."
925 */
926 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
927 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
928 egl_error = EGL_BAD_ATTRIBUTE;
929 break;
930
931 default:
932 assert(0);
933 egl_error = EGL_BAD_MATCH;
934 break;
935 }
936
937 _eglError(egl_error, "dri2_create_context");
938 }
939
940 static bool
941 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
942 struct dri2_egl_display *dri2_dpy,
943 uint32_t *ctx_attribs,
944 unsigned *num_attribs)
945 {
946 int pos = 0;
947
948 assert(*num_attribs >= 8);
949
950 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
951 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
952 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
953 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
954
955 if (dri2_ctx->base.Flags != 0) {
956 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
957 * extension, don't even try to send it the robust-access flag.
958 * It may explode. Instead, generate the required EGL error here.
959 */
960 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
961 && !dri2_dpy->robustness) {
962 _eglError(EGL_BAD_MATCH, "eglCreateContext");
963 return false;
964 }
965
966 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
967 ctx_attribs[pos++] = dri2_ctx->base.Flags;
968 }
969
970 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
971 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
972 * extension, don't even try to send it a reset strategy. It may
973 * explode. Instead, generate the required EGL error here.
974 */
975 if (!dri2_dpy->robustness) {
976 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
977 return false;
978 }
979
980 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
981 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
982 }
983
984 *num_attribs = pos;
985
986 return true;
987 }
988
989 /**
990 * Called via eglCreateContext(), drv->API.CreateContext().
991 */
992 static _EGLContext *
993 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
994 _EGLContext *share_list, const EGLint *attrib_list)
995 {
996 struct dri2_egl_context *dri2_ctx;
997 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
998 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
999 __DRIcontext *shared =
1000 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1001 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1002 const __DRIconfig *dri_config;
1003 int api;
1004
1005 (void) drv;
1006
1007 dri2_ctx = malloc(sizeof *dri2_ctx);
1008 if (!dri2_ctx) {
1009 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1010 return NULL;
1011 }
1012
1013 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1014 goto cleanup;
1015
1016 switch (dri2_ctx->base.ClientAPI) {
1017 case EGL_OPENGL_ES_API:
1018 switch (dri2_ctx->base.ClientMajorVersion) {
1019 case 1:
1020 api = __DRI_API_GLES;
1021 break;
1022 case 2:
1023 api = __DRI_API_GLES2;
1024 break;
1025 case 3:
1026 api = __DRI_API_GLES3;
1027 break;
1028 default:
1029 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1030 free(dri2_ctx);
1031 return NULL;
1032 }
1033 break;
1034 case EGL_OPENGL_API:
1035 if ((dri2_ctx->base.ClientMajorVersion >= 4
1036 || (dri2_ctx->base.ClientMajorVersion == 3
1037 && dri2_ctx->base.ClientMinorVersion >= 2))
1038 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1039 api = __DRI_API_OPENGL_CORE;
1040 else
1041 api = __DRI_API_OPENGL;
1042 break;
1043 default:
1044 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1045 free(dri2_ctx);
1046 return NULL;
1047 }
1048
1049 if (conf != NULL) {
1050 /* The config chosen here isn't necessarily
1051 * used for surfaces later.
1052 * A pixmap surface will use the single config.
1053 * This opportunity depends on disabling the
1054 * doubleBufferMode check in
1055 * src/mesa/main/context.c:check_compatible()
1056 */
1057 if (dri2_config->dri_double_config[0])
1058 dri_config = dri2_config->dri_double_config[0];
1059 else
1060 dri_config = dri2_config->dri_single_config[0];
1061
1062 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1063 * makes sure the back buffer will always be used.
1064 */
1065 if (conf->SurfaceType & EGL_WINDOW_BIT)
1066 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1067 }
1068 else
1069 dri_config = NULL;
1070
1071 if (dri2_dpy->image_driver) {
1072 unsigned error;
1073 unsigned num_attribs = 8;
1074 uint32_t ctx_attribs[8];
1075
1076 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1077 &num_attribs))
1078 goto cleanup;
1079
1080 dri2_ctx->dri_context =
1081 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1082 api,
1083 dri_config,
1084 shared,
1085 num_attribs / 2,
1086 ctx_attribs,
1087 & error,
1088 dri2_ctx);
1089 dri2_create_context_attribs_error(error);
1090 } else if (dri2_dpy->dri2) {
1091 if (dri2_dpy->dri2->base.version >= 3) {
1092 unsigned error;
1093 unsigned num_attribs = 8;
1094 uint32_t ctx_attribs[8];
1095
1096 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1097 &num_attribs))
1098 goto cleanup;
1099
1100 dri2_ctx->dri_context =
1101 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1102 api,
1103 dri_config,
1104 shared,
1105 num_attribs / 2,
1106 ctx_attribs,
1107 & error,
1108 dri2_ctx);
1109 dri2_create_context_attribs_error(error);
1110 } else {
1111 dri2_ctx->dri_context =
1112 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1113 api,
1114 dri_config,
1115 shared,
1116 dri2_ctx);
1117 }
1118 } else {
1119 assert(dri2_dpy->swrast);
1120 if (dri2_dpy->swrast->base.version >= 3) {
1121 unsigned error;
1122 unsigned num_attribs = 8;
1123 uint32_t ctx_attribs[8];
1124
1125 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1126 &num_attribs))
1127 goto cleanup;
1128
1129 dri2_ctx->dri_context =
1130 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1131 api,
1132 dri_config,
1133 shared,
1134 num_attribs / 2,
1135 ctx_attribs,
1136 & error,
1137 dri2_ctx);
1138 dri2_create_context_attribs_error(error);
1139 } else {
1140 dri2_ctx->dri_context =
1141 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1142 api,
1143 dri_config,
1144 shared,
1145 dri2_ctx);
1146 }
1147 }
1148
1149 if (!dri2_ctx->dri_context)
1150 goto cleanup;
1151
1152 return &dri2_ctx->base;
1153
1154 cleanup:
1155 free(dri2_ctx);
1156 return NULL;
1157 }
1158
1159 /**
1160 * Called via eglDestroyContext(), drv->API.DestroyContext().
1161 */
1162 static EGLBoolean
1163 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1164 {
1165 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1166 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1167
1168 if (_eglPutContext(ctx)) {
1169 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1170 free(dri2_ctx);
1171 }
1172
1173 return EGL_TRUE;
1174 }
1175
1176 /**
1177 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1178 */
1179 static EGLBoolean
1180 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1181 _EGLSurface *rsurf, _EGLContext *ctx)
1182 {
1183 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1184 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1185 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1186 _EGLContext *old_ctx;
1187 _EGLSurface *old_dsurf, *old_rsurf;
1188 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1189 __DRIdrawable *ddraw, *rdraw;
1190 __DRIcontext *cctx;
1191
1192 /* make new bindings */
1193 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1194 return EGL_FALSE;
1195
1196 /* flush before context switch */
1197 if (old_ctx && dri2_drv->glFlush)
1198 dri2_drv->glFlush();
1199
1200 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1201 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1202 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1203
1204 if (old_ctx) {
1205 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1206 dri2_dpy->core->unbindContext(old_cctx);
1207 }
1208
1209 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
1210 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1211 if (old_dsurf)
1212 drv->API.DestroySurface(drv, disp, old_dsurf);
1213 if (old_rsurf)
1214 drv->API.DestroySurface(drv, disp, old_rsurf);
1215 if (old_ctx)
1216 drv->API.DestroyContext(drv, disp, old_ctx);
1217
1218 return EGL_TRUE;
1219 } else {
1220 /* undo the previous _eglBindContext */
1221 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1222 assert(&dri2_ctx->base == ctx &&
1223 tmp_dsurf == dsurf &&
1224 tmp_rsurf == rsurf);
1225
1226 _eglPutSurface(dsurf);
1227 _eglPutSurface(rsurf);
1228 _eglPutContext(ctx);
1229
1230 _eglPutSurface(old_dsurf);
1231 _eglPutSurface(old_rsurf);
1232 _eglPutContext(old_ctx);
1233
1234 return EGL_FALSE;
1235 }
1236 }
1237
1238 __DRIdrawable *
1239 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1240 {
1241 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1242
1243 return dri2_surf->dri_drawable;
1244 }
1245
1246 /*
1247 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1248 */
1249 static _EGLProc
1250 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1251 {
1252 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1253
1254 return dri2_drv->get_proc_address(procname);
1255 }
1256
1257 static _EGLSurface*
1258 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1259 _EGLConfig *conf, void *native_window,
1260 const EGLint *attrib_list)
1261 {
1262 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1263 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1264 attrib_list);
1265 }
1266
1267 static _EGLSurface*
1268 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1269 _EGLConfig *conf, void *native_pixmap,
1270 const EGLint *attrib_list)
1271 {
1272 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1273 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1274 attrib_list);
1275 }
1276
1277 static _EGLSurface*
1278 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1279 _EGLConfig *conf, const EGLint *attrib_list)
1280 {
1281 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1282 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1283 }
1284
1285 static EGLBoolean
1286 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1287 {
1288 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1289 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1290 }
1291
1292 static EGLBoolean
1293 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1294 EGLint interval)
1295 {
1296 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1297 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1298 }
1299
1300 /**
1301 * Asks the client API to flush any rendering to the drawable so that we can
1302 * do our swapbuffers.
1303 */
1304 void
1305 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1306 {
1307 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1308 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1309
1310 if (dri2_dpy->flush) {
1311 if (dri2_dpy->flush->base.version >= 4) {
1312 /* We know there's a current context because:
1313 *
1314 * "If surface is not bound to the calling thread’s current
1315 * context, an EGL_BAD_SURFACE error is generated."
1316 */
1317 _EGLContext *ctx = _eglGetCurrentContext();
1318 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1319
1320 /* From the EGL 1.4 spec (page 52):
1321 *
1322 * "The contents of ancillary buffers are always undefined
1323 * after calling eglSwapBuffers."
1324 */
1325 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1326 dri_drawable,
1327 __DRI2_FLUSH_DRAWABLE |
1328 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1329 __DRI2_THROTTLE_SWAPBUFFER);
1330 } else {
1331 dri2_dpy->flush->flush(dri_drawable);
1332 }
1333 }
1334 }
1335
1336 static EGLBoolean
1337 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1338 {
1339 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1340 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1341 }
1342
1343 static EGLBoolean
1344 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1345 _EGLSurface *surf,
1346 const EGLint *rects, EGLint n_rects)
1347 {
1348 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1349 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1350 rects, n_rects);
1351 }
1352
1353 static EGLBoolean
1354 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1355 EGLint numRects, const EGLint *rects)
1356 {
1357 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1358 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1359 }
1360
1361 static EGLBoolean
1362 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1363 EGLint x, EGLint y, EGLint width, EGLint height)
1364 {
1365 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1366 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1367 }
1368
1369 static EGLBoolean
1370 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1371 void *native_pixmap_target)
1372 {
1373 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1374 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1375 }
1376
1377 static EGLint
1378 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1379 {
1380 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1381 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1382 }
1383
1384 static EGLBoolean
1385 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1386 {
1387 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1388 _EGLSurface *surf = ctx->DrawSurface;
1389 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1390
1391 (void) drv;
1392
1393 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1394 * we need to copy fake to real here.*/
1395
1396 if (dri2_dpy->flush != NULL)
1397 dri2_dpy->flush->flush(dri_drawable);
1398
1399 return EGL_TRUE;
1400 }
1401
1402 static EGLBoolean
1403 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1404 {
1405 (void) drv;
1406 (void) disp;
1407
1408 if (engine != EGL_CORE_NATIVE_ENGINE)
1409 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1410 /* glXWaitX(); */
1411
1412 return EGL_TRUE;
1413 }
1414
1415 static EGLBoolean
1416 dri2_bind_tex_image(_EGLDriver *drv,
1417 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1418 {
1419 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1420 struct dri2_egl_context *dri2_ctx;
1421 _EGLContext *ctx;
1422 GLint format, target;
1423 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1424
1425 ctx = _eglGetCurrentContext();
1426 dri2_ctx = dri2_egl_context(ctx);
1427
1428 if (!_eglBindTexImage(drv, disp, surf, buffer))
1429 return EGL_FALSE;
1430
1431 switch (surf->TextureFormat) {
1432 case EGL_TEXTURE_RGB:
1433 format = __DRI_TEXTURE_FORMAT_RGB;
1434 break;
1435 case EGL_TEXTURE_RGBA:
1436 format = __DRI_TEXTURE_FORMAT_RGBA;
1437 break;
1438 default:
1439 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1440 format = __DRI_TEXTURE_FORMAT_RGBA;
1441 }
1442
1443 switch (surf->TextureTarget) {
1444 case EGL_TEXTURE_2D:
1445 target = GL_TEXTURE_2D;
1446 break;
1447 default:
1448 target = GL_TEXTURE_2D;
1449 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1450 }
1451
1452 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1453 target, format,
1454 dri_drawable);
1455
1456 return EGL_TRUE;
1457 }
1458
1459 static EGLBoolean
1460 dri2_release_tex_image(_EGLDriver *drv,
1461 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1462 {
1463 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1464 struct dri2_egl_context *dri2_ctx;
1465 _EGLContext *ctx;
1466 GLint target;
1467 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1468
1469 ctx = _eglGetCurrentContext();
1470 dri2_ctx = dri2_egl_context(ctx);
1471
1472 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1473 return EGL_FALSE;
1474
1475 switch (surf->TextureTarget) {
1476 case EGL_TEXTURE_2D:
1477 target = GL_TEXTURE_2D;
1478 break;
1479 default:
1480 assert(0);
1481 }
1482
1483 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1484 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1485 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1486 target,
1487 dri_drawable);
1488 }
1489
1490 return EGL_TRUE;
1491 }
1492
1493 static _EGLImage*
1494 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1495 EGLenum target, EGLClientBuffer buffer,
1496 const EGLint *attr_list)
1497 {
1498 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1499 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1500 attr_list);
1501 }
1502
1503 static _EGLImage *
1504 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1505 {
1506 struct dri2_egl_image *dri2_img;
1507
1508 if (dri_image == NULL) {
1509 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1510 return NULL;
1511 }
1512
1513 dri2_img = malloc(sizeof *dri2_img);
1514 if (!dri2_img) {
1515 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1516 return NULL;
1517 }
1518
1519 if (!_eglInitImage(&dri2_img->base, disp)) {
1520 free(dri2_img);
1521 return NULL;
1522 }
1523
1524 dri2_img->dri_image = dri_image;
1525
1526 return &dri2_img->base;
1527 }
1528
1529 static _EGLImage *
1530 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1531 EGLClientBuffer buffer,
1532 const EGLint *attr_list)
1533 {
1534 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1535 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1536 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1537 __DRIimage *dri_image;
1538
1539 if (renderbuffer == 0) {
1540 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1541 return EGL_NO_IMAGE_KHR;
1542 }
1543
1544 dri_image =
1545 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1546 renderbuffer, NULL);
1547
1548 return dri2_create_image_from_dri(disp, dri_image);
1549 }
1550
1551 #ifdef HAVE_WAYLAND_PLATFORM
1552
1553 /* This structure describes how a wl_buffer maps to one or more
1554 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1555 * offsets and strides of the planes in the buffer. This table maps a
1556 * wl_drm format code to a description of the planes in the buffer
1557 * that lets us create a __DRIimage for each of the planes. */
1558
1559 static const struct wl_drm_components_descriptor {
1560 uint32_t dri_components;
1561 EGLint components;
1562 int nplanes;
1563 } wl_drm_components[] = {
1564 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1565 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1566 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1567 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1568 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1569 };
1570
1571 static _EGLImage *
1572 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1573 EGLClientBuffer _buffer,
1574 const EGLint *attr_list)
1575 {
1576 struct wl_drm_buffer *buffer;
1577 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1578 const struct wl_drm_components_descriptor *f;
1579 __DRIimage *dri_image;
1580 _EGLImageAttribs attrs;
1581 EGLint err;
1582 int32_t plane;
1583
1584 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1585 (struct wl_resource *) _buffer);
1586 if (!buffer)
1587 return NULL;
1588
1589 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1590 plane = attrs.PlaneWL;
1591 if (err != EGL_SUCCESS) {
1592 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1593 return NULL;
1594 }
1595
1596 f = buffer->driver_format;
1597 if (plane < 0 || plane >= f->nplanes) {
1598 _eglError(EGL_BAD_PARAMETER,
1599 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1600 return NULL;
1601 }
1602
1603 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1604
1605 if (dri_image == NULL) {
1606 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1607 return NULL;
1608 }
1609
1610 return dri2_create_image_from_dri(disp, dri_image);
1611 }
1612 #endif
1613
1614 static EGLBoolean
1615 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1616 EGLuint64KHR *ust, EGLuint64KHR *msc,
1617 EGLuint64KHR *sbc)
1618 {
1619 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1620 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1621 }
1622
1623 /**
1624 * Set the error code after a call to
1625 * dri2_egl_image::dri_image::createImageFromTexture.
1626 */
1627 static void
1628 dri2_create_image_khr_texture_error(int dri_error)
1629 {
1630 EGLint egl_error;
1631
1632 switch (dri_error) {
1633 case __DRI_IMAGE_ERROR_SUCCESS:
1634 return;
1635
1636 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1637 egl_error = EGL_BAD_ALLOC;
1638 break;
1639
1640 case __DRI_IMAGE_ERROR_BAD_MATCH:
1641 egl_error = EGL_BAD_MATCH;
1642 break;
1643
1644 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1645 egl_error = EGL_BAD_PARAMETER;
1646 break;
1647
1648 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1649 egl_error = EGL_BAD_ACCESS;
1650 break;
1651
1652 default:
1653 assert(0);
1654 egl_error = EGL_BAD_MATCH;
1655 break;
1656 }
1657
1658 _eglError(egl_error, "dri2_create_image_khr_texture");
1659 }
1660
1661 static _EGLImage *
1662 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1663 EGLenum target,
1664 EGLClientBuffer buffer,
1665 const EGLint *attr_list)
1666 {
1667 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1668 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1669 struct dri2_egl_image *dri2_img;
1670 GLuint texture = (GLuint) (uintptr_t) buffer;
1671 _EGLImageAttribs attrs;
1672 GLuint depth;
1673 GLenum gl_target;
1674 unsigned error;
1675
1676 if (texture == 0) {
1677 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1678 return EGL_NO_IMAGE_KHR;
1679 }
1680
1681 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1682 return EGL_NO_IMAGE_KHR;
1683
1684 switch (target) {
1685 case EGL_GL_TEXTURE_2D_KHR:
1686 depth = 0;
1687 gl_target = GL_TEXTURE_2D;
1688 break;
1689 case EGL_GL_TEXTURE_3D_KHR:
1690 if (disp->Extensions.KHR_gl_texture_3D_image) {
1691 depth = attrs.GLTextureZOffset;
1692 gl_target = GL_TEXTURE_3D;
1693 break;
1694 }
1695 else {
1696 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1697 return EGL_NO_IMAGE_KHR;
1698 }
1699 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1700 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1701 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1702 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1703 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1704 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1705 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1706 gl_target = GL_TEXTURE_CUBE_MAP;
1707 break;
1708 default:
1709 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1710 return EGL_NO_IMAGE_KHR;
1711 }
1712
1713 dri2_img = malloc(sizeof *dri2_img);
1714 if (!dri2_img) {
1715 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1716 return EGL_NO_IMAGE_KHR;
1717 }
1718
1719 if (!_eglInitImage(&dri2_img->base, disp)) {
1720 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1721 free(dri2_img);
1722 return EGL_NO_IMAGE_KHR;
1723 }
1724
1725 dri2_img->dri_image =
1726 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1727 gl_target,
1728 texture,
1729 depth,
1730 attrs.GLTextureLevel,
1731 &error,
1732 dri2_img);
1733 dri2_create_image_khr_texture_error(error);
1734
1735 if (!dri2_img->dri_image) {
1736 free(dri2_img);
1737 return EGL_NO_IMAGE_KHR;
1738 }
1739 return &dri2_img->base;
1740 }
1741
1742 static struct wl_buffer*
1743 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1744 _EGLImage *img)
1745 {
1746 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1747 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1748 }
1749
1750 #ifdef HAVE_LIBDRM
1751 static _EGLImage *
1752 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1753 EGLClientBuffer buffer, const EGLint *attr_list)
1754 {
1755 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1756 EGLint format, name, pitch, err;
1757 _EGLImageAttribs attrs;
1758 __DRIimage *dri_image;
1759
1760 name = (EGLint) (uintptr_t) buffer;
1761
1762 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1763 if (err != EGL_SUCCESS)
1764 return NULL;
1765
1766 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1767 attrs.DRMBufferStrideMESA <= 0) {
1768 _eglError(EGL_BAD_PARAMETER,
1769 "bad width, height or stride");
1770 return NULL;
1771 }
1772
1773 switch (attrs.DRMBufferFormatMESA) {
1774 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1775 format = __DRI_IMAGE_FORMAT_ARGB8888;
1776 pitch = attrs.DRMBufferStrideMESA;
1777 break;
1778 default:
1779 _eglError(EGL_BAD_PARAMETER,
1780 "dri2_create_image_khr: unsupported pixmap depth");
1781 return NULL;
1782 }
1783
1784 dri_image =
1785 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1786 attrs.Width,
1787 attrs.Height,
1788 format,
1789 name,
1790 pitch,
1791 NULL);
1792
1793 return dri2_create_image_from_dri(disp, dri_image);
1794 }
1795
1796 static EGLBoolean
1797 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1798 {
1799 unsigned i;
1800
1801 /**
1802 * The spec says:
1803 *
1804 * "Required attributes and their values are as follows:
1805 *
1806 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1807 *
1808 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1809 * by drm_fourcc.h and used as the pixel_format parameter of the
1810 * drm_mode_fb_cmd2 ioctl."
1811 *
1812 * and
1813 *
1814 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1815 * incomplete, EGL_BAD_PARAMETER is generated."
1816 */
1817 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1818 !attrs->DMABufFourCC.IsPresent) {
1819 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1820 return EGL_FALSE;
1821 }
1822
1823 /**
1824 * Also:
1825 *
1826 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1827 * specified for a plane's pitch or offset isn't supported by EGL,
1828 * EGL_BAD_ACCESS is generated."
1829 */
1830 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1831 if (attrs->DMABufPlanePitches[i].IsPresent &&
1832 attrs->DMABufPlanePitches[i].Value <= 0) {
1833 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1834 return EGL_FALSE;
1835 }
1836 }
1837
1838 return EGL_TRUE;
1839 }
1840
1841 /* Returns the total number of file descriptors. Zero indicates an error. */
1842 static unsigned
1843 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1844 {
1845 unsigned i, plane_n;
1846
1847 switch (attrs->DMABufFourCC.Value) {
1848 case DRM_FORMAT_R8:
1849 case DRM_FORMAT_RG88:
1850 case DRM_FORMAT_GR88:
1851 case DRM_FORMAT_RGB332:
1852 case DRM_FORMAT_BGR233:
1853 case DRM_FORMAT_XRGB4444:
1854 case DRM_FORMAT_XBGR4444:
1855 case DRM_FORMAT_RGBX4444:
1856 case DRM_FORMAT_BGRX4444:
1857 case DRM_FORMAT_ARGB4444:
1858 case DRM_FORMAT_ABGR4444:
1859 case DRM_FORMAT_RGBA4444:
1860 case DRM_FORMAT_BGRA4444:
1861 case DRM_FORMAT_XRGB1555:
1862 case DRM_FORMAT_XBGR1555:
1863 case DRM_FORMAT_RGBX5551:
1864 case DRM_FORMAT_BGRX5551:
1865 case DRM_FORMAT_ARGB1555:
1866 case DRM_FORMAT_ABGR1555:
1867 case DRM_FORMAT_RGBA5551:
1868 case DRM_FORMAT_BGRA5551:
1869 case DRM_FORMAT_RGB565:
1870 case DRM_FORMAT_BGR565:
1871 case DRM_FORMAT_RGB888:
1872 case DRM_FORMAT_BGR888:
1873 case DRM_FORMAT_XRGB8888:
1874 case DRM_FORMAT_XBGR8888:
1875 case DRM_FORMAT_RGBX8888:
1876 case DRM_FORMAT_BGRX8888:
1877 case DRM_FORMAT_ARGB8888:
1878 case DRM_FORMAT_ABGR8888:
1879 case DRM_FORMAT_RGBA8888:
1880 case DRM_FORMAT_BGRA8888:
1881 case DRM_FORMAT_XRGB2101010:
1882 case DRM_FORMAT_XBGR2101010:
1883 case DRM_FORMAT_RGBX1010102:
1884 case DRM_FORMAT_BGRX1010102:
1885 case DRM_FORMAT_ARGB2101010:
1886 case DRM_FORMAT_ABGR2101010:
1887 case DRM_FORMAT_RGBA1010102:
1888 case DRM_FORMAT_BGRA1010102:
1889 case DRM_FORMAT_YUYV:
1890 case DRM_FORMAT_YVYU:
1891 case DRM_FORMAT_UYVY:
1892 case DRM_FORMAT_VYUY:
1893 plane_n = 1;
1894 break;
1895 case DRM_FORMAT_NV12:
1896 case DRM_FORMAT_NV21:
1897 case DRM_FORMAT_NV16:
1898 case DRM_FORMAT_NV61:
1899 plane_n = 2;
1900 break;
1901 case DRM_FORMAT_YUV410:
1902 case DRM_FORMAT_YVU410:
1903 case DRM_FORMAT_YUV411:
1904 case DRM_FORMAT_YVU411:
1905 case DRM_FORMAT_YUV420:
1906 case DRM_FORMAT_YVU420:
1907 case DRM_FORMAT_YUV422:
1908 case DRM_FORMAT_YVU422:
1909 case DRM_FORMAT_YUV444:
1910 case DRM_FORMAT_YVU444:
1911 plane_n = 3;
1912 break;
1913 default:
1914 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1915 return 0;
1916 }
1917
1918 /**
1919 * The spec says:
1920 *
1921 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1922 * incomplete, EGL_BAD_PARAMETER is generated."
1923 */
1924 for (i = 0; i < plane_n; ++i) {
1925 if (!attrs->DMABufPlaneFds[i].IsPresent ||
1926 !attrs->DMABufPlaneOffsets[i].IsPresent ||
1927 !attrs->DMABufPlanePitches[i].IsPresent) {
1928 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1929 return 0;
1930 }
1931 }
1932
1933 /**
1934 * The spec also says:
1935 *
1936 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
1937 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
1938 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
1939 * attributes are specified."
1940 */
1941 for (i = plane_n; i < 3; ++i) {
1942 if (attrs->DMABufPlaneFds[i].IsPresent ||
1943 attrs->DMABufPlaneOffsets[i].IsPresent ||
1944 attrs->DMABufPlanePitches[i].IsPresent) {
1945 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
1946 return 0;
1947 }
1948 }
1949
1950 return plane_n;
1951 }
1952
1953 /**
1954 * The spec says:
1955 *
1956 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
1957 * EGL will take a reference to the dma_buf(s) which it will release at any
1958 * time while the EGLDisplay is initialized. It is the responsibility of the
1959 * application to close the dma_buf file descriptors."
1960 *
1961 * Therefore we must never close or otherwise modify the file descriptors.
1962 */
1963 static _EGLImage *
1964 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
1965 EGLClientBuffer buffer, const EGLint *attr_list)
1966 {
1967 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1968 _EGLImage *res;
1969 EGLint err;
1970 _EGLImageAttribs attrs;
1971 __DRIimage *dri_image;
1972 unsigned num_fds;
1973 unsigned i;
1974 int fds[3];
1975 int pitches[3];
1976 int offsets[3];
1977 unsigned error;
1978
1979 /**
1980 * The spec says:
1981 *
1982 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
1983 * error EGL_BAD_PARAMETER is generated."
1984 */
1985 if (buffer != NULL) {
1986 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
1987 return NULL;
1988 }
1989
1990 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1991 if (err != EGL_SUCCESS) {
1992 _eglError(err, "bad attribute");
1993 return NULL;
1994 }
1995
1996 if (!dri2_check_dma_buf_attribs(&attrs))
1997 return NULL;
1998
1999 num_fds = dri2_check_dma_buf_format(&attrs);
2000 if (!num_fds)
2001 return NULL;
2002
2003 for (i = 0; i < num_fds; ++i) {
2004 fds[i] = attrs.DMABufPlaneFds[i].Value;
2005 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2006 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2007 }
2008
2009 dri_image =
2010 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2011 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2012 fds, num_fds, pitches, offsets,
2013 attrs.DMABufYuvColorSpaceHint.Value,
2014 attrs.DMABufSampleRangeHint.Value,
2015 attrs.DMABufChromaHorizontalSiting.Value,
2016 attrs.DMABufChromaVerticalSiting.Value,
2017 &error,
2018 NULL);
2019 dri2_create_image_khr_texture_error(error);
2020
2021 if (!dri_image)
2022 return EGL_NO_IMAGE_KHR;
2023
2024 res = dri2_create_image_from_dri(disp, dri_image);
2025
2026 return res;
2027 }
2028 static _EGLImage *
2029 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2030 const EGLint *attr_list)
2031 {
2032 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2033 struct dri2_egl_image *dri2_img;
2034 _EGLImageAttribs attrs;
2035 unsigned int dri_use, valid_mask;
2036 int format;
2037 EGLint err = EGL_SUCCESS;
2038
2039 (void) drv;
2040
2041 dri2_img = malloc(sizeof *dri2_img);
2042 if (!dri2_img) {
2043 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2044 return EGL_NO_IMAGE_KHR;
2045 }
2046
2047 if (!attr_list) {
2048 err = EGL_BAD_PARAMETER;
2049 goto cleanup_img;
2050 }
2051
2052 if (!_eglInitImage(&dri2_img->base, disp)) {
2053 err = EGL_BAD_PARAMETER;
2054 goto cleanup_img;
2055 }
2056
2057 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2058 if (err != EGL_SUCCESS)
2059 goto cleanup_img;
2060
2061 if (attrs.Width <= 0 || attrs.Height <= 0) {
2062 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2063 attrs.Width, attrs.Height);
2064 goto cleanup_img;
2065 }
2066
2067 switch (attrs.DRMBufferFormatMESA) {
2068 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2069 format = __DRI_IMAGE_FORMAT_ARGB8888;
2070 break;
2071 default:
2072 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2073 attrs.DRMBufferFormatMESA);
2074 goto cleanup_img;
2075 }
2076
2077 valid_mask =
2078 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2079 EGL_DRM_BUFFER_USE_SHARE_MESA |
2080 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2081 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2082 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2083 attrs.DRMBufferUseMESA & ~valid_mask);
2084 goto cleanup_img;
2085 }
2086
2087 dri_use = 0;
2088 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2089 dri_use |= __DRI_IMAGE_USE_SHARE;
2090 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2091 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2092 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2093 dri_use |= __DRI_IMAGE_USE_CURSOR;
2094
2095 dri2_img->dri_image =
2096 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2097 attrs.Width, attrs.Height,
2098 format, dri_use, dri2_img);
2099 if (dri2_img->dri_image == NULL) {
2100 err = EGL_BAD_ALLOC;
2101 goto cleanup_img;
2102 }
2103
2104 return &dri2_img->base;
2105
2106 cleanup_img:
2107 free(dri2_img);
2108 _eglError(err, "dri2_create_drm_image_mesa");
2109
2110 return EGL_NO_IMAGE_KHR;
2111 }
2112
2113 static EGLBoolean
2114 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2115 EGLint *name, EGLint *handle, EGLint *stride)
2116 {
2117 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2118 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2119
2120 (void) drv;
2121
2122 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2123 __DRI_IMAGE_ATTRIB_NAME, name)) {
2124 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2125 return EGL_FALSE;
2126 }
2127
2128 if (handle)
2129 dri2_dpy->image->queryImage(dri2_img->dri_image,
2130 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2131
2132 if (stride)
2133 dri2_dpy->image->queryImage(dri2_img->dri_image,
2134 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2135
2136 return EGL_TRUE;
2137 }
2138
2139 static EGLBoolean
2140 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2141 _EGLImage *img,
2142 EGLint *fourcc, EGLint *nplanes,
2143 EGLuint64KHR *modifiers)
2144 {
2145 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2146 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2147
2148 (void) drv;
2149
2150
2151 if (nplanes)
2152 dri2_dpy->image->queryImage(dri2_img->dri_image,
2153 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2154 if (fourcc)
2155 dri2_dpy->image->queryImage(dri2_img->dri_image,
2156 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2157
2158 if (modifiers)
2159 *modifiers = 0;
2160
2161 return EGL_TRUE;
2162 }
2163
2164 static EGLBoolean
2165 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2166 int *fds, EGLint *strides, EGLint *offsets)
2167 {
2168 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2169 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2170
2171 (void) drv;
2172
2173 /* rework later to provide multiple fds/strides/offsets */
2174 if (fds)
2175 dri2_dpy->image->queryImage(dri2_img->dri_image,
2176 __DRI_IMAGE_ATTRIB_FD, fds);
2177
2178 if (strides)
2179 dri2_dpy->image->queryImage(dri2_img->dri_image,
2180 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2181
2182 if (offsets)
2183 offsets[0] = 0;
2184
2185 return EGL_TRUE;
2186 }
2187
2188 #endif
2189
2190 _EGLImage *
2191 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2192 _EGLContext *ctx, EGLenum target,
2193 EGLClientBuffer buffer, const EGLint *attr_list)
2194 {
2195 (void) drv;
2196
2197 switch (target) {
2198 case EGL_GL_TEXTURE_2D_KHR:
2199 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2200 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2201 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2202 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2203 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2204 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2205 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2206 case EGL_GL_TEXTURE_3D_KHR:
2207 if (disp->Extensions.KHR_gl_texture_3D_image) {
2208 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2209 }
2210 else {
2211 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2212 return EGL_NO_IMAGE_KHR;
2213 }
2214 case EGL_GL_RENDERBUFFER_KHR:
2215 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2216 #ifdef HAVE_LIBDRM
2217 case EGL_DRM_BUFFER_MESA:
2218 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2219 case EGL_LINUX_DMA_BUF_EXT:
2220 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2221 #endif
2222 #ifdef HAVE_WAYLAND_PLATFORM
2223 case EGL_WAYLAND_BUFFER_WL:
2224 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2225 #endif
2226 default:
2227 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2228 return EGL_NO_IMAGE_KHR;
2229 }
2230 }
2231
2232 static EGLBoolean
2233 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2234 {
2235 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2236 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2237
2238 (void) drv;
2239
2240 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2241 free(dri2_img);
2242
2243 return EGL_TRUE;
2244 }
2245
2246 #ifdef HAVE_WAYLAND_PLATFORM
2247
2248 static void
2249 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2250 struct wl_drm_buffer *buffer)
2251 {
2252 _EGLDisplay *disp = user_data;
2253 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2254 __DRIimage *img;
2255 int i, dri_components = 0;
2256
2257 if (fd == -1)
2258 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2259 buffer->width,
2260 buffer->height,
2261 buffer->format,
2262 (int*)&name, 1,
2263 buffer->stride,
2264 buffer->offset,
2265 NULL);
2266 else
2267 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2268 buffer->width,
2269 buffer->height,
2270 buffer->format,
2271 &fd, 1,
2272 buffer->stride,
2273 buffer->offset,
2274 NULL);
2275
2276 if (img == NULL)
2277 return;
2278
2279 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2280
2281 buffer->driver_format = NULL;
2282 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2283 if (wl_drm_components[i].dri_components == dri_components)
2284 buffer->driver_format = &wl_drm_components[i];
2285
2286 if (buffer->driver_format == NULL)
2287 dri2_dpy->image->destroyImage(img);
2288 else
2289 buffer->driver_buffer = img;
2290 }
2291
2292 static void
2293 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2294 {
2295 _EGLDisplay *disp = user_data;
2296 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2297
2298 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2299 }
2300
2301 static struct wayland_drm_callbacks wl_drm_callbacks = {
2302 .authenticate = NULL,
2303 .reference_buffer = dri2_wl_reference_buffer,
2304 .release_buffer = dri2_wl_release_buffer
2305 };
2306
2307 static EGLBoolean
2308 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2309 struct wl_display *wl_dpy)
2310 {
2311 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2312 int flags = 0;
2313 uint64_t cap;
2314
2315 (void) drv;
2316
2317 if (dri2_dpy->wl_server_drm)
2318 return EGL_FALSE;
2319
2320 wl_drm_callbacks.authenticate =
2321 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2322
2323 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2324 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2325 dri2_dpy->image->base.version >= 7 &&
2326 dri2_dpy->image->createImageFromFds != NULL)
2327 flags |= WAYLAND_DRM_PRIME;
2328
2329 dri2_dpy->wl_server_drm =
2330 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2331 &wl_drm_callbacks, disp, flags);
2332
2333 if (!dri2_dpy->wl_server_drm)
2334 return EGL_FALSE;
2335
2336 #ifdef HAVE_DRM_PLATFORM
2337 /* We have to share the wl_drm instance with gbm, so gbm can convert
2338 * wl_buffers to gbm bos. */
2339 if (dri2_dpy->gbm_dri)
2340 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2341 #endif
2342
2343 return EGL_TRUE;
2344 }
2345
2346 static EGLBoolean
2347 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2348 struct wl_display *wl_dpy)
2349 {
2350 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2351
2352 (void) drv;
2353
2354 if (!dri2_dpy->wl_server_drm)
2355 return EGL_FALSE;
2356
2357 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2358 dri2_dpy->wl_server_drm = NULL;
2359
2360 return EGL_TRUE;
2361 }
2362
2363 static EGLBoolean
2364 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2365 struct wl_resource *buffer_resource,
2366 EGLint attribute, EGLint *value)
2367 {
2368 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2369 struct wl_drm_buffer *buffer;
2370 const struct wl_drm_components_descriptor *format;
2371
2372 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2373 if (!buffer)
2374 return EGL_FALSE;
2375
2376 format = buffer->driver_format;
2377 switch (attribute) {
2378 case EGL_TEXTURE_FORMAT:
2379 *value = format->components;
2380 return EGL_TRUE;
2381 case EGL_WIDTH:
2382 *value = buffer->width;
2383 return EGL_TRUE;
2384 case EGL_HEIGHT:
2385 *value = buffer->height;
2386 return EGL_TRUE;
2387 }
2388
2389 return EGL_FALSE;
2390 }
2391 #endif
2392
2393 static void
2394 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2395 {
2396 p_atomic_inc(&sync->refcount);
2397 }
2398
2399 static void
2400 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2401 struct dri2_egl_sync *dri2_sync)
2402 {
2403 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2404 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2405 cnd_destroy(&dri2_sync->cond);
2406
2407 if (dri2_sync->fence)
2408 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2409
2410 free(dri2_sync);
2411 }
2412 }
2413
2414 static _EGLSync *
2415 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2416 EGLenum type, const EGLint *attrib_list,
2417 const EGLAttrib *attrib_list64)
2418 {
2419 _EGLContext *ctx = _eglGetCurrentContext();
2420 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2421 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2422 struct dri2_egl_sync *dri2_sync;
2423 EGLint ret;
2424 pthread_condattr_t attr;
2425
2426 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2427 if (!dri2_sync) {
2428 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2429 return NULL;
2430 }
2431
2432 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2433 attrib_list64)) {
2434 free(dri2_sync);
2435 return NULL;
2436 }
2437
2438 switch (type) {
2439 case EGL_SYNC_FENCE_KHR:
2440 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2441 if (!dri2_sync->fence) {
2442 /* Why did it fail? DRI doesn't return an error code, so we emit
2443 * a generic EGL error that doesn't communicate user error.
2444 */
2445 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2446 free(dri2_sync);
2447 return NULL;
2448 }
2449 break;
2450
2451 case EGL_SYNC_CL_EVENT_KHR:
2452 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2453 dri2_dpy->dri_screen,
2454 dri2_sync->base.CLEvent);
2455 /* this can only happen if the cl_event passed in is invalid. */
2456 if (!dri2_sync->fence) {
2457 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2458 free(dri2_sync);
2459 return NULL;
2460 }
2461
2462 /* the initial status must be "signaled" if the cl_event is signaled */
2463 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2464 dri2_sync->fence, 0, 0))
2465 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2466 break;
2467
2468 case EGL_SYNC_REUSABLE_KHR:
2469 /* intialize attr */
2470 ret = pthread_condattr_init(&attr);
2471
2472 if (ret) {
2473 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2474 free(dri2_sync);
2475 return NULL;
2476 }
2477
2478 /* change clock attribute to CLOCK_MONOTONIC */
2479 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2480
2481 if (ret) {
2482 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2483 free(dri2_sync);
2484 return NULL;
2485 }
2486
2487 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2488
2489 if (ret) {
2490 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2491 free(dri2_sync);
2492 return NULL;
2493 }
2494
2495 /* initial status of reusable sync must be "unsignaled" */
2496 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2497 break;
2498 }
2499
2500 p_atomic_set(&dri2_sync->refcount, 1);
2501 return &dri2_sync->base;
2502 }
2503
2504 static EGLBoolean
2505 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2506 {
2507 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2508 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2509 EGLint ret = EGL_TRUE;
2510 EGLint err;
2511
2512 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2513 * then unlock all threads possibly blocked by the reusable sync before
2514 * destroying it.
2515 */
2516 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2517 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2518 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2519 /* unblock all threads currently blocked by sync */
2520 err = cnd_broadcast(&dri2_sync->cond);
2521
2522 if (err) {
2523 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2524 ret = EGL_FALSE;
2525 }
2526 }
2527 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2528
2529 return ret;
2530 }
2531
2532 static EGLint
2533 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2534 EGLint flags, EGLTime timeout)
2535 {
2536 _EGLContext *ctx = _eglGetCurrentContext();
2537 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2538 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2539 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2540 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2541 unsigned wait_flags = 0;
2542
2543 /* timespecs for cnd_timedwait */
2544 struct timespec current;
2545 xtime expire;
2546
2547 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2548
2549 /* The EGL_KHR_fence_sync spec states:
2550 *
2551 * "If no context is current for the bound API,
2552 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2553 */
2554 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2555 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2556
2557 /* the sync object should take a reference while waiting */
2558 dri2_egl_ref_sync(dri2_sync);
2559
2560 switch (sync->Type) {
2561 case EGL_SYNC_FENCE_KHR:
2562 case EGL_SYNC_CL_EVENT_KHR:
2563 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2564 dri2_sync->fence, wait_flags,
2565 timeout))
2566 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2567 else
2568 ret = EGL_TIMEOUT_EXPIRED_KHR;
2569 break;
2570
2571 case EGL_SYNC_REUSABLE_KHR:
2572 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2573 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2574 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2575 if (dri2_drv->glFlush)
2576 dri2_drv->glFlush();
2577 }
2578
2579 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2580 if (timeout == EGL_FOREVER_KHR) {
2581 if (mtx_lock(&dri2_sync->mutex)) {
2582 ret = EGL_FALSE;
2583 goto cleanup;
2584 }
2585
2586 ret = cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2587
2588 if (mtx_unlock(&dri2_sync->mutex)) {
2589 ret = EGL_FALSE;
2590 goto cleanup;
2591 }
2592
2593 if (ret) {
2594 _eglError(EGL_BAD_PARAMETER, "eglClientWaitSyncKHR");
2595 ret = EGL_FALSE;
2596 }
2597 } else {
2598 /* if reusable sync has not been yet signaled */
2599 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2600 clock_gettime(CLOCK_MONOTONIC, &current);
2601
2602 /* calculating when to expire */
2603 expire.nsec = timeout % 1000000000L;
2604 expire.sec = timeout / 1000000000L;
2605
2606 expire.nsec += current.tv_nsec;
2607 expire.sec += current.tv_sec;
2608
2609 /* expire.nsec now is a number between 0 and 1999999998 */
2610 if (expire.nsec > 999999999L) {
2611 expire.sec++;
2612 expire.nsec -= 1000000000L;
2613 }
2614
2615 if (mtx_lock(&dri2_sync->mutex)) {
2616 ret = EGL_FALSE;
2617 goto cleanup;
2618 }
2619
2620 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2621
2622 if (mtx_unlock(&dri2_sync->mutex)) {
2623 ret = EGL_FALSE;
2624 goto cleanup;
2625 }
2626
2627 if (ret)
2628 if (ret == thrd_busy) {
2629 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2630 ret = EGL_TIMEOUT_EXPIRED_KHR;
2631 } else {
2632 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2633 ret = EGL_FALSE;
2634 }
2635 }
2636 }
2637 }
2638 break;
2639 }
2640
2641 cleanup:
2642 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2643
2644 if (ret == EGL_FALSE) {
2645 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2646 return EGL_FALSE;
2647 }
2648
2649 return ret;
2650 }
2651
2652 static EGLBoolean
2653 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2654 EGLenum mode)
2655 {
2656 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2657 EGLint ret;
2658
2659 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2660 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2661 return EGL_FALSE;
2662 }
2663
2664 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2665 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2666 return EGL_FALSE;
2667 }
2668
2669 dri2_sync->base.SyncStatus = mode;
2670
2671 if (mode == EGL_SIGNALED_KHR) {
2672 ret = cnd_broadcast(&dri2_sync->cond);
2673
2674 /* fail to broadcast */
2675 if (ret) {
2676 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2677 return EGL_FALSE;
2678 }
2679 }
2680
2681 return EGL_TRUE;
2682 }
2683
2684 static EGLint
2685 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2686 {
2687 _EGLContext *ctx = _eglGetCurrentContext();
2688 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2689 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2690 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2691
2692 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2693 dri2_sync->fence, 0);
2694 return EGL_TRUE;
2695 }
2696
2697 static int
2698 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2699 mesa_glinterop_device_info *out)
2700 {
2701 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2702 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2703
2704 if (!dri2_dpy->interop)
2705 return MESA_GLINTEROP_UNSUPPORTED;
2706
2707 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2708 }
2709
2710 static int
2711 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2712 const mesa_glinterop_export_in *in,
2713 mesa_glinterop_export_out *out)
2714 {
2715 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2716 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2717
2718 if (!dri2_dpy->interop)
2719 return MESA_GLINTEROP_UNSUPPORTED;
2720
2721 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2722 }
2723
2724 static void
2725 dri2_unload(_EGLDriver *drv)
2726 {
2727 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2728
2729 if (dri2_drv->handle)
2730 dlclose(dri2_drv->handle);
2731 free(dri2_drv);
2732 }
2733
2734 static EGLBoolean
2735 dri2_load(_EGLDriver *drv)
2736 {
2737 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2738 #ifdef HAVE_ANDROID_PLATFORM
2739 const char *libname = "libglapi.so";
2740 #elif defined(__APPLE__)
2741 const char *libname = "libglapi.0.dylib";
2742 #else
2743 const char *libname = "libglapi.so.0";
2744 #endif
2745 void *handle;
2746
2747 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2748 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2749 if (handle) {
2750 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2751 dlsym(handle, "_glapi_get_proc_address");
2752 if (!dri2_drv->get_proc_address || !libname) {
2753 /* no need to keep a reference */
2754 dlclose(handle);
2755 handle = NULL;
2756 }
2757 }
2758
2759 /* if glapi is not available, loading DRI drivers will fail */
2760 if (!dri2_drv->get_proc_address) {
2761 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2762 return EGL_FALSE;
2763 }
2764
2765 dri2_drv->glFlush = (void (*)(void))
2766 dri2_drv->get_proc_address("glFlush");
2767
2768 dri2_drv->handle = handle;
2769
2770 return EGL_TRUE;
2771 }
2772
2773 /**
2774 * This is the main entrypoint into the driver, called by libEGL.
2775 * Create a new _EGLDriver object and init its dispatch table.
2776 */
2777 _EGLDriver *
2778 _eglBuiltInDriverDRI2(const char *args)
2779 {
2780 struct dri2_egl_driver *dri2_drv;
2781
2782 (void) args;
2783
2784 dri2_drv = calloc(1, sizeof *dri2_drv);
2785 if (!dri2_drv)
2786 return NULL;
2787
2788 if (!dri2_load(&dri2_drv->base)) {
2789 free(dri2_drv);
2790 return NULL;
2791 }
2792
2793 _eglInitDriverFallbacks(&dri2_drv->base);
2794 dri2_drv->base.API.Initialize = dri2_initialize;
2795 dri2_drv->base.API.Terminate = dri2_terminate;
2796 dri2_drv->base.API.CreateContext = dri2_create_context;
2797 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2798 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2799 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2800 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2801 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2802 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2803 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2804 dri2_drv->base.API.WaitClient = dri2_wait_client;
2805 dri2_drv->base.API.WaitNative = dri2_wait_native;
2806 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2807 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2808 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2809 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2810 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2811 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2812 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2813 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2814 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2815 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2816 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2817 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2818 #ifdef HAVE_LIBDRM
2819 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2820 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2821 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2822 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2823 #endif
2824 #ifdef HAVE_WAYLAND_PLATFORM
2825 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2826 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2827 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2828 #endif
2829 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2830 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2831 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2832 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2833 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2834 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2835 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2836 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2837
2838 dri2_drv->base.Name = "DRI2";
2839 dri2_drv->base.Unload = dri2_unload;
2840
2841 return &dri2_drv->base;
2842 }