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 "loader/loader.h"
60 #include "util/u_atomic.h"
61
62 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
63 * some of the definitions here so that building Mesa won't bleeding-edge
64 * kernel headers.
65 */
66 #ifndef DRM_FORMAT_R8
67 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
68 #endif
69
70 #ifndef DRM_FORMAT_RG88
71 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
72 #endif
73
74 #ifndef DRM_FORMAT_GR88
75 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
76 #endif
77
78 const __DRIuseInvalidateExtension use_invalidate = {
79 .base = { __DRI_USE_INVALIDATE, 1 }
80 };
81
82 EGLint dri2_to_egl_attribute_map[] = {
83 0,
84 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
85 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
86 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
87 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
88 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
89 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
90 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
91 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
92 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
93 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
94 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
95 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
96 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
97 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
98 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
99 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
100 0, /* __DRI_ATTRIB_RENDER_TYPE, */
101 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
102 0, /* __DRI_ATTRIB_CONFORMANT */
103 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
104 0, /* __DRI_ATTRIB_STEREO */
105 0, /* __DRI_ATTRIB_AUX_BUFFERS */
106 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
108 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
109 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
110 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
111 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
112 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
113 0, /* __DRI_ATTRIB_RED_MASK */
114 0, /* __DRI_ATTRIB_GREEN_MASK */
115 0, /* __DRI_ATTRIB_BLUE_MASK */
116 0, /* __DRI_ATTRIB_ALPHA_MASK */
117 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
118 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
119 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
120 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
121 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
122 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
123 0, /* __DRI_ATTRIB_SWAP_METHOD */
124 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
125 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
126 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
127 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
128 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
129 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
130 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
131 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
132 };
133
134 const __DRIconfig *
dri2_get_dri_config(struct dri2_egl_config * conf,EGLint surface_type,EGLenum colorspace)135 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
136 EGLenum colorspace)
137 {
138 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
139
140 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
141 conf->dri_single_config[srgb];
142 }
143
144 static EGLBoolean
dri2_match_config(const _EGLConfig * conf,const _EGLConfig * criteria)145 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
146 {
147 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
148 return EGL_FALSE;
149
150 if (!_eglMatchConfig(conf, criteria))
151 return EGL_FALSE;
152
153 return EGL_TRUE;
154 }
155
156 struct dri2_egl_config *
dri2_add_config(_EGLDisplay * disp,const __DRIconfig * dri_config,int id,EGLint surface_type,const EGLint * attr_list,const unsigned int * rgba_masks)157 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
158 EGLint surface_type, const EGLint *attr_list,
159 const unsigned int *rgba_masks)
160 {
161 struct dri2_egl_config *conf;
162 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
163 _EGLConfig base;
164 unsigned int attrib, value, double_buffer;
165 bool srgb = false;
166 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
167 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
168 _EGLConfig *matching_config;
169 EGLint num_configs = 0;
170 EGLint config_id;
171 int i;
172
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 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
246 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_WIDTH,
247 _EGL_MAX_PBUFFER_WIDTH);
248 break;
249 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
250 _eglSetConfigKey(&base, EGL_MAX_PBUFFER_HEIGHT,
251 _EGL_MAX_PBUFFER_HEIGHT);
252 break;
253
254 default:
255 key = dri2_to_egl_attribute_map[attrib];
256 if (key != 0)
257 _eglSetConfigKey(&base, key, value);
258 break;
259 }
260 }
261
262 if (attr_list)
263 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
264 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
265
266 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
267 return NULL;
268
269 base.NativeRenderable = EGL_TRUE;
270
271 base.SurfaceType = surface_type;
272 if (surface_type & (EGL_PBUFFER_BIT |
273 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
274 base.BindToTextureRGB = bind_to_texture_rgb;
275 if (base.AlphaSize > 0)
276 base.BindToTextureRGBA = bind_to_texture_rgba;
277 }
278
279 base.RenderableType = disp->ClientAPIs;
280 base.Conformant = disp->ClientAPIs;
281
282 base.MinSwapInterval = dri2_dpy->min_swap_interval;
283 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
284
285 if (!_eglValidateConfig(&base, EGL_FALSE)) {
286 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
287 return NULL;
288 }
289
290 config_id = base.ConfigID;
291 base.ConfigID = EGL_DONT_CARE;
292 base.SurfaceType = EGL_DONT_CARE;
293 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
294 (_EGLArrayForEach) dri2_match_config, &base);
295
296 if (num_configs == 1) {
297 conf = (struct dri2_egl_config *) matching_config;
298
299 if (double_buffer && !conf->dri_double_config[srgb])
300 conf->dri_double_config[srgb] = dri_config;
301 else if (!double_buffer && !conf->dri_single_config[srgb])
302 conf->dri_single_config[srgb] = dri_config;
303 else
304 /* a similar config type is already added (unlikely) => discard */
305 return NULL;
306 }
307 else if (num_configs == 0) {
308 conf = calloc(1, sizeof *conf);
309 if (conf == NULL)
310 return NULL;
311
312 if (double_buffer)
313 conf->dri_double_config[srgb] = dri_config;
314 else
315 conf->dri_single_config[srgb] = dri_config;
316
317 memcpy(&conf->base, &base, sizeof base);
318 conf->base.SurfaceType = 0;
319 conf->base.ConfigID = config_id;
320
321 _eglLinkConfig(&conf->base);
322 }
323 else {
324 assert(0);
325 return NULL;
326 }
327
328 if (double_buffer) {
329 surface_type &= ~EGL_PIXMAP_BIT;
330 }
331
332 /* No support for pbuffer + MSAA for now.
333 *
334 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
335 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
336 */
337 if (base.Samples) {
338 surface_type &= ~EGL_PBUFFER_BIT;
339 }
340
341 conf->base.SurfaceType |= surface_type;
342
343 return conf;
344 }
345
346 __DRIimage *
dri2_lookup_egl_image(__DRIscreen * screen,void * image,void * data)347 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
348 {
349 _EGLDisplay *disp = data;
350 struct dri2_egl_image *dri2_img;
351 _EGLImage *img;
352
353 (void) screen;
354
355 img = _eglLookupImage(image, disp);
356 if (img == NULL) {
357 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
358 return NULL;
359 }
360
361 dri2_img = dri2_egl_image(image);
362
363 return dri2_img->dri_image;
364 }
365
366 const __DRIimageLookupExtension image_lookup_extension = {
367 .base = { __DRI_IMAGE_LOOKUP, 1 },
368
369 .lookupEGLImage = dri2_lookup_egl_image
370 };
371
372 struct dri2_extension_match {
373 const char *name;
374 int version;
375 int offset;
376 };
377
378 static const struct dri2_extension_match dri3_driver_extensions[] = {
379 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
380 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
381 { NULL, 0, 0 }
382 };
383
384 static const struct dri2_extension_match dri2_driver_extensions[] = {
385 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
386 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
387 { NULL, 0, 0 }
388 };
389
390 static const struct dri2_extension_match dri2_core_extensions[] = {
391 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
392 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
393 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
394 { NULL, 0, 0 }
395 };
396
397 static const struct dri2_extension_match swrast_driver_extensions[] = {
398 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
399 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
400 { NULL, 0, 0 }
401 };
402
403 static const struct dri2_extension_match swrast_core_extensions[] = {
404 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
405 { NULL, 0, 0 }
406 };
407
408 static const struct dri2_extension_match optional_core_extensions[] = {
409 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
410 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
411 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
412 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
413 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
414 { NULL, 0, 0 }
415 };
416
417 static EGLBoolean
dri2_bind_extensions(struct dri2_egl_display * dri2_dpy,const struct dri2_extension_match * matches,const __DRIextension ** extensions,bool optional)418 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
419 const struct dri2_extension_match *matches,
420 const __DRIextension **extensions,
421 bool optional)
422 {
423 int i, j, ret = EGL_TRUE;
424 void *field;
425
426 for (i = 0; extensions[i]; i++) {
427 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
428 for (j = 0; matches[j].name; j++) {
429 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
430 extensions[i]->version >= matches[j].version) {
431 field = ((char *) dri2_dpy + matches[j].offset);
432 *(const __DRIextension **) field = extensions[i];
433 _eglLog(_EGL_INFO, "found extension %s version %d",
434 extensions[i]->name, extensions[i]->version);
435 break;
436 }
437 }
438 }
439
440 for (j = 0; matches[j].name; j++) {
441 field = ((char *) dri2_dpy + matches[j].offset);
442 if (*(const __DRIextension **) field == NULL) {
443 if (optional) {
444 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
445 matches[j].name, matches[j].version);
446 } else {
447 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
448 matches[j].name, matches[j].version);
449 ret = EGL_FALSE;
450 }
451 }
452 }
453
454 return ret;
455 }
456
457 static const __DRIextension **
dri2_open_driver(_EGLDisplay * disp)458 dri2_open_driver(_EGLDisplay *disp)
459 {
460 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
461 const __DRIextension **extensions = NULL;
462 char path[PATH_MAX], *search_paths, *p, *next, *end;
463 char *get_extensions_name;
464 const __DRIextension **(*get_extensions)(void);
465
466 search_paths = NULL;
467 if (geteuid() == getuid()) {
468 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
469 search_paths = getenv("LIBGL_DRIVERS_PATH");
470 }
471 if (search_paths == NULL)
472 search_paths = DEFAULT_DRIVER_DIR;
473
474 dri2_dpy->driver = NULL;
475 end = search_paths + strlen(search_paths);
476 for (p = search_paths; p < end; p = next + 1) {
477 int len;
478 next = strchr(p, ':');
479 if (next == NULL)
480 next = end;
481
482 len = next - p;
483 #if GLX_USE_TLS
484 snprintf(path, sizeof path,
485 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
486 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
487 #endif
488 if (dri2_dpy->driver == NULL) {
489 snprintf(path, sizeof path,
490 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
491 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
492 if (dri2_dpy->driver == NULL)
493 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
494 }
495 /* not need continue to loop all paths once the driver is found */
496 if (dri2_dpy->driver != NULL)
497 break;
498
499 #ifdef ANDROID
500 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
501 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
502 if (dri2_dpy->driver == NULL)
503 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
504 else
505 break;
506 #endif
507 }
508
509 if (dri2_dpy->driver == NULL) {
510 _eglLog(_EGL_WARNING,
511 "DRI2: failed to open %s (search paths %s)",
512 dri2_dpy->driver_name, search_paths);
513 return NULL;
514 }
515
516 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
517
518 get_extensions_name = loader_get_extensions_name(dri2_dpy->driver_name);
519 if (get_extensions_name) {
520 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
521 if (get_extensions) {
522 extensions = get_extensions();
523 } else {
524 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
525 get_extensions_name, dlerror());
526 }
527 free(get_extensions_name);
528 }
529
530 if (!extensions)
531 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
532 if (extensions == NULL) {
533 _eglLog(_EGL_WARNING,
534 "DRI2: driver exports no extensions (%s)", dlerror());
535 dlclose(dri2_dpy->driver);
536 }
537
538 return extensions;
539 }
540
541 EGLBoolean
dri2_load_driver_dri3(_EGLDisplay * disp)542 dri2_load_driver_dri3(_EGLDisplay *disp)
543 {
544 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
545 const __DRIextension **extensions;
546
547 extensions = dri2_open_driver(disp);
548 if (!extensions)
549 return EGL_FALSE;
550
551 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions, false)) {
552 dlclose(dri2_dpy->driver);
553 return EGL_FALSE;
554 }
555 dri2_dpy->driver_extensions = extensions;
556
557 return EGL_TRUE;
558 }
559
560 EGLBoolean
dri2_load_driver(_EGLDisplay * disp)561 dri2_load_driver(_EGLDisplay *disp)
562 {
563 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
564 const __DRIextension **extensions;
565
566 extensions = dri2_open_driver(disp);
567 if (!extensions)
568 return EGL_FALSE;
569
570 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions, false)) {
571 dlclose(dri2_dpy->driver);
572 return EGL_FALSE;
573 }
574 dri2_dpy->driver_extensions = extensions;
575
576 return EGL_TRUE;
577 }
578
579 EGLBoolean
dri2_load_driver_swrast(_EGLDisplay * disp)580 dri2_load_driver_swrast(_EGLDisplay *disp)
581 {
582 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
583 const __DRIextension **extensions;
584
585 extensions = dri2_open_driver(disp);
586 if (!extensions)
587 return EGL_FALSE;
588
589 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions, false)) {
590 dlclose(dri2_dpy->driver);
591 return EGL_FALSE;
592 }
593 dri2_dpy->driver_extensions = extensions;
594
595 return EGL_TRUE;
596 }
597
598 static unsigned
dri2_renderer_query_integer(struct dri2_egl_display * dri2_dpy,int param)599 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
600 {
601 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
602 unsigned int value = 0;
603
604 if (!rendererQuery ||
605 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
606 return 0;
607
608 return value;
609 }
610
611 void
dri2_setup_screen(_EGLDisplay * disp)612 dri2_setup_screen(_EGLDisplay *disp)
613 {
614 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
615 unsigned int api_mask;
616
617 if (dri2_dpy->image_driver) {
618 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
619 } else if (dri2_dpy->dri2) {
620 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
621 } else {
622 assert(dri2_dpy->swrast);
623 api_mask = 1 << __DRI_API_OPENGL |
624 1 << __DRI_API_GLES |
625 1 << __DRI_API_GLES2 |
626 1 << __DRI_API_GLES3;
627 }
628
629 disp->ClientAPIs = 0;
630 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
631 disp->ClientAPIs |= EGL_OPENGL_BIT;
632 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
633 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
634 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
635 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
636 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
637 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
638
639 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
640 disp->Extensions.KHR_no_config_context = EGL_TRUE;
641 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
642
643 if (dri2_renderer_query_integer(dri2_dpy,
644 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
645 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
646
647 if (dri2_dpy->image_driver ||
648 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
649 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
650 disp->Extensions.KHR_create_context = EGL_TRUE;
651
652 if (dri2_dpy->robustness)
653 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
654 }
655
656 if (dri2_dpy->fence) {
657 disp->Extensions.KHR_fence_sync = EGL_TRUE;
658 disp->Extensions.KHR_wait_sync = EGL_TRUE;
659 if (dri2_dpy->fence->get_fence_from_cl_event)
660 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
661 if (dri2_dpy->fence->base.version >= 2) {
662 unsigned capabilities =
663 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
664 disp->Extensions.ANDROID_native_fence_sync =
665 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
666 }
667 }
668
669 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
670
671 if (dri2_dpy->image) {
672 if (dri2_dpy->image->base.version >= 10 &&
673 dri2_dpy->image->getCapabilities != NULL) {
674 int capabilities;
675
676 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
677 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
678
679 if (dri2_dpy->image->base.version >= 11)
680 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
681 } else {
682 disp->Extensions.MESA_drm_image = EGL_TRUE;
683 if (dri2_dpy->image->base.version >= 11)
684 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
685 }
686
687 disp->Extensions.KHR_image_base = EGL_TRUE;
688 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
689 if (dri2_dpy->image->base.version >= 5 &&
690 dri2_dpy->image->createImageFromTexture) {
691 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
692 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
693 }
694 if (dri2_renderer_query_integer(dri2_dpy,
695 __DRI2_RENDERER_HAS_TEXTURE_3D))
696 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
697 #ifdef HAVE_LIBDRM
698 if (dri2_dpy->image->base.version >= 8 &&
699 dri2_dpy->image->createImageFromDmaBufs) {
700 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
701 }
702 #endif
703 }
704 }
705
706 /* All platforms but DRM call this function to create the screen, query the
707 * dri extensions, setup the vtables and populate the driver_configs.
708 * DRM inherits all that information from its display - GBM.
709 */
710 EGLBoolean
dri2_create_screen(_EGLDisplay * disp)711 dri2_create_screen(_EGLDisplay *disp)
712 {
713 const __DRIextension **extensions;
714 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
715
716 if (dri2_dpy->image_driver) {
717 dri2_dpy->dri_screen =
718 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
719 dri2_dpy->loader_extensions,
720 dri2_dpy->driver_extensions,
721 &dri2_dpy->driver_configs,
722 disp);
723 } else if (dri2_dpy->dri2) {
724 if (dri2_dpy->dri2->base.version >= 4) {
725 dri2_dpy->dri_screen =
726 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
727 dri2_dpy->loader_extensions,
728 dri2_dpy->driver_extensions,
729 &dri2_dpy->driver_configs, disp);
730 } else {
731 dri2_dpy->dri_screen =
732 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
733 dri2_dpy->loader_extensions,
734 &dri2_dpy->driver_configs, disp);
735 }
736 } else {
737 assert(dri2_dpy->swrast);
738 if (dri2_dpy->swrast->base.version >= 4) {
739 dri2_dpy->dri_screen =
740 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
741 dri2_dpy->driver_extensions,
742 &dri2_dpy->driver_configs, disp);
743 } else {
744 dri2_dpy->dri_screen =
745 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
746 &dri2_dpy->driver_configs, disp);
747 }
748 }
749
750 if (dri2_dpy->dri_screen == NULL) {
751 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
752 return EGL_FALSE;
753 }
754
755 dri2_dpy->own_dri_screen = 1;
756
757 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
758
759 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
760 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions, false))
761 goto cleanup_dri_screen;
762 } else {
763 assert(dri2_dpy->swrast);
764 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions, false))
765 goto cleanup_dri_screen;
766 }
767
768 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
769 dri2_setup_screen(disp);
770
771 return EGL_TRUE;
772
773 cleanup_dri_screen:
774 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
775
776 return EGL_FALSE;
777 }
778
779 /**
780 * Called via eglInitialize(), GLX_drv->API.Initialize().
781 *
782 * This must be guaranteed to be called exactly once, even if eglInitialize is
783 * called many times (without a eglTerminate in between).
784 */
785 static EGLBoolean
dri2_initialize(_EGLDriver * drv,_EGLDisplay * disp)786 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
787 {
788 EGLBoolean ret = EGL_FALSE;
789 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
790
791 /* In the case where the application calls eglMakeCurrent(context1),
792 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
793 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
794 * initialized, as we need it to be able to free context1 correctly.
795 *
796 * It would probably be safest to forcibly release the display with
797 * dri2_display_release, to make sure the display is reinitialized correctly.
798 * However, the EGL spec states that we need to keep a reference to the
799 * current context (so we cannot call dri2_make_current(NULL)), and therefore
800 * we would leak context1 as we would be missing the old display connection
801 * to free it up correctly.
802 */
803 if (dri2_dpy) {
804 dri2_dpy->ref_count++;
805 return EGL_TRUE;
806 }
807
808 /* not until swrast_dri is supported */
809 if (disp->Options.UseFallback)
810 return EGL_FALSE;
811
812 /* Nothing to initialize for a test only display */
813 if (disp->Options.TestOnly)
814 return EGL_TRUE;
815
816 switch (disp->Platform) {
817 #ifdef HAVE_SURFACELESS_PLATFORM
818 case _EGL_PLATFORM_SURFACELESS:
819 ret = dri2_initialize_surfaceless(drv, disp);
820 break;
821 #endif
822 #ifdef HAVE_X11_PLATFORM
823 case _EGL_PLATFORM_X11:
824 ret = dri2_initialize_x11(drv, disp);
825 break;
826 #endif
827 #ifdef HAVE_DRM_PLATFORM
828 case _EGL_PLATFORM_DRM:
829 ret = dri2_initialize_drm(drv, disp);
830 break;
831 #endif
832 #ifdef HAVE_WAYLAND_PLATFORM
833 case _EGL_PLATFORM_WAYLAND:
834 ret = dri2_initialize_wayland(drv, disp);
835 break;
836 #endif
837 #ifdef HAVE_ANDROID_PLATFORM
838 case _EGL_PLATFORM_ANDROID:
839 ret = dri2_initialize_android(drv, disp);
840 break;
841 #endif
842 default:
843 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
844 return EGL_FALSE;
845 }
846
847 if (ret) {
848 dri2_dpy = dri2_egl_display(disp);
849
850 if (!dri2_dpy) {
851 return EGL_FALSE;
852 }
853
854 dri2_dpy->ref_count++;
855 }
856
857 return ret;
858 }
859
860 /**
861 * Decrement display reference count, and free up display if necessary.
862 */
863 static void
dri2_display_release(_EGLDisplay * disp)864 dri2_display_release(_EGLDisplay *disp)
865 {
866 struct dri2_egl_display *dri2_dpy;
867 unsigned i;
868
869 if (!disp)
870 return;
871
872 dri2_dpy = dri2_egl_display(disp);
873
874 assert(dri2_dpy->ref_count > 0);
875 dri2_dpy->ref_count--;
876
877 if (dri2_dpy->ref_count > 0)
878 return;
879
880 _eglCleanupDisplay(disp);
881
882 if (dri2_dpy->own_dri_screen)
883 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
884 if (dri2_dpy->fd >= 0)
885 close(dri2_dpy->fd);
886 if (dri2_dpy->driver)
887 dlclose(dri2_dpy->driver);
888 free(dri2_dpy->driver_name);
889
890 #ifdef HAVE_WAYLAND_PLATFORM
891 free(dri2_dpy->device_name);
892 #endif
893
894 switch (disp->Platform) {
895 #ifdef HAVE_X11_PLATFORM
896 case _EGL_PLATFORM_X11:
897 if (dri2_dpy->own_device) {
898 xcb_disconnect(dri2_dpy->conn);
899 }
900 break;
901 #endif
902 #ifdef HAVE_DRM_PLATFORM
903 case _EGL_PLATFORM_DRM:
904 if (dri2_dpy->own_device) {
905 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
906 }
907 break;
908 #endif
909 #ifdef HAVE_WAYLAND_PLATFORM
910 case _EGL_PLATFORM_WAYLAND:
911 if (dri2_dpy->wl_drm)
912 wl_drm_destroy(dri2_dpy->wl_drm);
913 if (dri2_dpy->wl_shm)
914 wl_shm_destroy(dri2_dpy->wl_shm);
915 wl_registry_destroy(dri2_dpy->wl_registry);
916 wl_event_queue_destroy(dri2_dpy->wl_queue);
917 wl_proxy_wrapper_destroy(dri2_dpy->wl_dpy_wrapper);
918 if (dri2_dpy->own_device) {
919 wl_display_disconnect(dri2_dpy->wl_dpy);
920 }
921 break;
922 #endif
923 default:
924 break;
925 }
926
927 /* The drm platform does not create the screen/driver_configs but reuses
928 * the ones from the gbm device. As such the gbm itself is responsible
929 * for the cleanup.
930 */
931 if (disp->Platform != _EGL_PLATFORM_DRM) {
932 for (i = 0; dri2_dpy->driver_configs[i]; i++)
933 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
934 free(dri2_dpy->driver_configs);
935 }
936 free(dri2_dpy);
937 disp->DriverData = NULL;
938 }
939
940 /**
941 * Called via eglTerminate(), drv->API.Terminate().
942 *
943 * This must be guaranteed to be called exactly once, even if eglTerminate is
944 * called many times (without a eglInitialize in between).
945 */
946 static EGLBoolean
dri2_terminate(_EGLDriver * drv,_EGLDisplay * disp)947 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
948 {
949 /* Release all non-current Context/Surfaces. */
950 _eglReleaseDisplayResources(drv, disp);
951
952 dri2_display_release(disp);
953
954 return EGL_TRUE;
955 }
956
957 /**
958 * Set the error code after a call to
959 * dri2_egl_display::dri2::createContextAttribs.
960 */
961 static void
dri2_create_context_attribs_error(int dri_error)962 dri2_create_context_attribs_error(int dri_error)
963 {
964 EGLint egl_error;
965
966 switch (dri_error) {
967 case __DRI_CTX_ERROR_SUCCESS:
968 return;
969
970 case __DRI_CTX_ERROR_NO_MEMORY:
971 egl_error = EGL_BAD_ALLOC;
972 break;
973
974 /* From the EGL_KHR_create_context spec, section "Errors":
975 *
976 * * If <config> does not support a client API context compatible
977 * with the requested API major and minor version, [...] context flags,
978 * and context reset notification behavior (for client API types where
979 * these attributes are supported), then an EGL_BAD_MATCH error is
980 * generated.
981 *
982 * * If an OpenGL ES context is requested and the values for
983 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
984 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
985 * is not defined, than an EGL_BAD_MATCH error is generated.
986 *
987 * * If an OpenGL context is requested, the requested version is
988 * greater than 3.2, and the value for attribute
989 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
990 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
991 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
992 * one of these bits set; or if the implementation does not support
993 * the requested profile, then an EGL_BAD_MATCH error is generated.
994 */
995 case __DRI_CTX_ERROR_BAD_API:
996 case __DRI_CTX_ERROR_BAD_VERSION:
997 case __DRI_CTX_ERROR_BAD_FLAG:
998 egl_error = EGL_BAD_MATCH;
999 break;
1000
1001 /* From the EGL_KHR_create_context spec, section "Errors":
1002 *
1003 * * If an attribute name or attribute value in <attrib_list> is not
1004 * recognized (including unrecognized bits in bitmask attributes),
1005 * then an EGL_BAD_ATTRIBUTE error is generated."
1006 */
1007 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1008 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1009 egl_error = EGL_BAD_ATTRIBUTE;
1010 break;
1011
1012 default:
1013 assert(0);
1014 egl_error = EGL_BAD_MATCH;
1015 break;
1016 }
1017
1018 _eglError(egl_error, "dri2_create_context");
1019 }
1020
1021 static bool
dri2_fill_context_attribs(struct dri2_egl_context * dri2_ctx,struct dri2_egl_display * dri2_dpy,uint32_t * ctx_attribs,unsigned * num_attribs)1022 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1023 struct dri2_egl_display *dri2_dpy,
1024 uint32_t *ctx_attribs,
1025 unsigned *num_attribs)
1026 {
1027 int pos = 0;
1028
1029 assert(*num_attribs >= 8);
1030
1031 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1032 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1033 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1034 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1035
1036 if (dri2_ctx->base.Flags != 0) {
1037 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1038 * extension, don't even try to send it the robust-access flag.
1039 * It may explode. Instead, generate the required EGL error here.
1040 */
1041 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1042 && !dri2_dpy->robustness) {
1043 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1044 return false;
1045 }
1046
1047 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1048 ctx_attribs[pos++] = dri2_ctx->base.Flags;
1049 }
1050
1051 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1052 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1053 * extension, don't even try to send it a reset strategy. It may
1054 * explode. Instead, generate the required EGL error here.
1055 */
1056 if (!dri2_dpy->robustness) {
1057 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1058 return false;
1059 }
1060
1061 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1062 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1063 }
1064
1065 *num_attribs = pos;
1066
1067 return true;
1068 }
1069
1070 /**
1071 * Called via eglCreateContext(), drv->API.CreateContext().
1072 */
1073 static _EGLContext *
dri2_create_context(_EGLDriver * drv,_EGLDisplay * disp,_EGLConfig * conf,_EGLContext * share_list,const EGLint * attrib_list)1074 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1075 _EGLContext *share_list, const EGLint *attrib_list)
1076 {
1077 struct dri2_egl_context *dri2_ctx;
1078 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1079 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1080 __DRIcontext *shared =
1081 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1082 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1083 const __DRIconfig *dri_config;
1084 int api;
1085
1086 (void) drv;
1087
1088 dri2_ctx = malloc(sizeof *dri2_ctx);
1089 if (!dri2_ctx) {
1090 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1091 return NULL;
1092 }
1093
1094 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1095 goto cleanup;
1096
1097 /* The EGL_EXT_create_context_robustness spec says:
1098 *
1099 * "Add to the eglCreateContext context creation errors: [...]
1100 *
1101 * * If the reset notification behavior of <share_context> and the
1102 * newly created context are different then an EGL_BAD_MATCH error is
1103 * generated."
1104 */
1105 if (share_list && share_list->ResetNotificationStrategy !=
1106 dri2_ctx->base.ResetNotificationStrategy) {
1107 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1108 goto cleanup;
1109 }
1110
1111 switch (dri2_ctx->base.ClientAPI) {
1112 case EGL_OPENGL_ES_API:
1113 switch (dri2_ctx->base.ClientMajorVersion) {
1114 case 1:
1115 api = __DRI_API_GLES;
1116 break;
1117 case 2:
1118 api = __DRI_API_GLES2;
1119 break;
1120 case 3:
1121 api = __DRI_API_GLES3;
1122 break;
1123 default:
1124 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1125 free(dri2_ctx);
1126 return NULL;
1127 }
1128 break;
1129 case EGL_OPENGL_API:
1130 if ((dri2_ctx->base.ClientMajorVersion >= 4
1131 || (dri2_ctx->base.ClientMajorVersion == 3
1132 && dri2_ctx->base.ClientMinorVersion >= 2))
1133 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1134 api = __DRI_API_OPENGL_CORE;
1135 else
1136 api = __DRI_API_OPENGL;
1137 break;
1138 default:
1139 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1140 free(dri2_ctx);
1141 return NULL;
1142 }
1143
1144 if (conf != NULL) {
1145 /* The config chosen here isn't necessarily
1146 * used for surfaces later.
1147 * A pixmap surface will use the single config.
1148 * This opportunity depends on disabling the
1149 * doubleBufferMode check in
1150 * src/mesa/main/context.c:check_compatible()
1151 */
1152 if (dri2_config->dri_double_config[0])
1153 dri_config = dri2_config->dri_double_config[0];
1154 else
1155 dri_config = dri2_config->dri_single_config[0];
1156
1157 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1158 * makes sure the back buffer will always be used.
1159 */
1160 if (conf->SurfaceType & EGL_WINDOW_BIT)
1161 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1162 }
1163 else
1164 dri_config = NULL;
1165
1166 if (dri2_dpy->image_driver) {
1167 unsigned error;
1168 unsigned num_attribs = 8;
1169 uint32_t ctx_attribs[8];
1170
1171 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1172 &num_attribs))
1173 goto cleanup;
1174
1175 dri2_ctx->dri_context =
1176 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1177 api,
1178 dri_config,
1179 shared,
1180 num_attribs / 2,
1181 ctx_attribs,
1182 & error,
1183 dri2_ctx);
1184 dri2_create_context_attribs_error(error);
1185 } else if (dri2_dpy->dri2) {
1186 if (dri2_dpy->dri2->base.version >= 3) {
1187 unsigned error;
1188 unsigned num_attribs = 8;
1189 uint32_t ctx_attribs[8];
1190
1191 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1192 &num_attribs))
1193 goto cleanup;
1194
1195 dri2_ctx->dri_context =
1196 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1197 api,
1198 dri_config,
1199 shared,
1200 num_attribs / 2,
1201 ctx_attribs,
1202 & error,
1203 dri2_ctx);
1204 dri2_create_context_attribs_error(error);
1205 } else {
1206 dri2_ctx->dri_context =
1207 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1208 api,
1209 dri_config,
1210 shared,
1211 dri2_ctx);
1212 }
1213 } else {
1214 assert(dri2_dpy->swrast);
1215 if (dri2_dpy->swrast->base.version >= 3) {
1216 unsigned error;
1217 unsigned num_attribs = 8;
1218 uint32_t ctx_attribs[8];
1219
1220 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1221 &num_attribs))
1222 goto cleanup;
1223
1224 dri2_ctx->dri_context =
1225 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1226 api,
1227 dri_config,
1228 shared,
1229 num_attribs / 2,
1230 ctx_attribs,
1231 & error,
1232 dri2_ctx);
1233 dri2_create_context_attribs_error(error);
1234 } else {
1235 dri2_ctx->dri_context =
1236 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1237 api,
1238 dri_config,
1239 shared,
1240 dri2_ctx);
1241 }
1242 }
1243
1244 if (!dri2_ctx->dri_context)
1245 goto cleanup;
1246
1247 return &dri2_ctx->base;
1248
1249 cleanup:
1250 free(dri2_ctx);
1251 return NULL;
1252 }
1253
1254 /**
1255 * Called via eglDestroyContext(), drv->API.DestroyContext().
1256 */
1257 static EGLBoolean
dri2_destroy_context(_EGLDriver * drv,_EGLDisplay * disp,_EGLContext * ctx)1258 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1259 {
1260 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1261 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1262
1263 if (_eglPutContext(ctx)) {
1264 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1265 free(dri2_ctx);
1266 }
1267
1268 return EGL_TRUE;
1269 }
1270
1271 static EGLBoolean
dri2_destroy_surface(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf)1272 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1273 {
1274 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1275
1276 if (!_eglPutSurface(surf))
1277 return EGL_TRUE;
1278
1279 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1280 }
1281
1282 /**
1283 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1284 */
1285 static EGLBoolean
dri2_make_current(_EGLDriver * drv,_EGLDisplay * disp,_EGLSurface * dsurf,_EGLSurface * rsurf,_EGLContext * ctx)1286 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1287 _EGLSurface *rsurf, _EGLContext *ctx)
1288 {
1289 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1290 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1291 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1292 _EGLContext *old_ctx;
1293 _EGLSurface *old_dsurf, *old_rsurf;
1294 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1295 __DRIdrawable *ddraw, *rdraw;
1296 __DRIcontext *cctx;
1297 EGLBoolean unbind;
1298
1299 if (!dri2_dpy)
1300 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1301
1302 /* make new bindings */
1303 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1304 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1305 return EGL_FALSE;
1306 }
1307
1308 /* flush before context switch */
1309 if (old_ctx)
1310 dri2_drv->glFlush();
1311
1312 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1313 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1314 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1315
1316 if (old_ctx) {
1317 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1318 dri2_dpy->core->unbindContext(old_cctx);
1319 }
1320
1321 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1322
1323 if (unbind || dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1324 dri2_destroy_surface(drv, disp, old_dsurf);
1325 dri2_destroy_surface(drv, disp, old_rsurf);
1326
1327 if (!unbind)
1328 dri2_dpy->ref_count++;
1329 if (old_ctx) {
1330 EGLDisplay old_disp = _eglGetDisplayHandle(old_ctx->Resource.Display);
1331 dri2_destroy_context(drv, disp, old_ctx);
1332 dri2_display_release(old_disp);
1333 }
1334
1335 return EGL_TRUE;
1336 } else {
1337 /* undo the previous _eglBindContext */
1338 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1339 assert(&dri2_ctx->base == ctx &&
1340 tmp_dsurf == dsurf &&
1341 tmp_rsurf == rsurf);
1342
1343 _eglPutSurface(dsurf);
1344 _eglPutSurface(rsurf);
1345 _eglPutContext(ctx);
1346
1347 _eglPutSurface(old_dsurf);
1348 _eglPutSurface(old_rsurf);
1349 _eglPutContext(old_ctx);
1350
1351 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1352 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1353 * as EGL_SUCCESS.
1354 */
1355 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1356 }
1357 }
1358
1359 __DRIdrawable *
dri2_surface_get_dri_drawable(_EGLSurface * surf)1360 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1361 {
1362 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1363
1364 return dri2_surf->dri_drawable;
1365 }
1366
1367 /*
1368 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1369 */
1370 static _EGLProc
dri2_get_proc_address(_EGLDriver * drv,const char * procname)1371 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1372 {
1373 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1374
1375 return dri2_drv->get_proc_address(procname);
1376 }
1377
1378 static _EGLSurface*
dri2_create_window_surface(_EGLDriver * drv,_EGLDisplay * dpy,_EGLConfig * conf,void * native_window,const EGLint * attrib_list)1379 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1380 _EGLConfig *conf, void *native_window,
1381 const EGLint *attrib_list)
1382 {
1383 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1384 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1385 attrib_list);
1386 }
1387
1388 static _EGLSurface*
dri2_create_pixmap_surface(_EGLDriver * drv,_EGLDisplay * dpy,_EGLConfig * conf,void * native_pixmap,const EGLint * attrib_list)1389 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1390 _EGLConfig *conf, void *native_pixmap,
1391 const EGLint *attrib_list)
1392 {
1393 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1394 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1395 attrib_list);
1396 }
1397
1398 static _EGLSurface*
dri2_create_pbuffer_surface(_EGLDriver * drv,_EGLDisplay * dpy,_EGLConfig * conf,const EGLint * attrib_list)1399 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1400 _EGLConfig *conf, const EGLint *attrib_list)
1401 {
1402 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1403 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1404 }
1405
1406 static EGLBoolean
dri2_swap_interval(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf,EGLint interval)1407 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1408 EGLint interval)
1409 {
1410 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1411 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1412 }
1413
1414 /**
1415 * Asks the client API to flush any rendering to the drawable so that we can
1416 * do our swapbuffers.
1417 */
1418 void
dri2_flush_drawable_for_swapbuffers(_EGLDisplay * disp,_EGLSurface * draw)1419 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1420 {
1421 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1422 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1423
1424 if (dri2_dpy->flush) {
1425 if (dri2_dpy->flush->base.version >= 4) {
1426 /* We know there's a current context because:
1427 *
1428 * "If surface is not bound to the calling thread’s current
1429 * context, an EGL_BAD_SURFACE error is generated."
1430 */
1431 _EGLContext *ctx = _eglGetCurrentContext();
1432 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1433
1434 /* From the EGL 1.4 spec (page 52):
1435 *
1436 * "The contents of ancillary buffers are always undefined
1437 * after calling eglSwapBuffers."
1438 */
1439 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1440 dri_drawable,
1441 __DRI2_FLUSH_DRAWABLE |
1442 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1443 __DRI2_THROTTLE_SWAPBUFFER);
1444 } else {
1445 dri2_dpy->flush->flush(dri_drawable);
1446 }
1447 }
1448 }
1449
1450 static EGLBoolean
dri2_swap_buffers(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf)1451 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1452 {
1453 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1454 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1455 }
1456
1457 static EGLBoolean
dri2_swap_buffers_with_damage(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf,const EGLint * rects,EGLint n_rects)1458 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1459 _EGLSurface *surf,
1460 const EGLint *rects, EGLint n_rects)
1461 {
1462 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1463 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1464 rects, n_rects);
1465 }
1466
1467 static EGLBoolean
dri2_swap_buffers_region(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf,EGLint numRects,const EGLint * rects)1468 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1469 EGLint numRects, const EGLint *rects)
1470 {
1471 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1472 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1473 }
1474
1475 static EGLBoolean
dri2_post_sub_buffer(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf,EGLint x,EGLint y,EGLint width,EGLint height)1476 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1477 EGLint x, EGLint y, EGLint width, EGLint height)
1478 {
1479 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1480 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1481 }
1482
1483 static EGLBoolean
dri2_copy_buffers(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf,void * native_pixmap_target)1484 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1485 void *native_pixmap_target)
1486 {
1487 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1488 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1489 }
1490
1491 static EGLint
dri2_query_buffer_age(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf)1492 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1493 {
1494 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1495 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1496 }
1497
1498 static EGLBoolean
dri2_wait_client(_EGLDriver * drv,_EGLDisplay * disp,_EGLContext * ctx)1499 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1500 {
1501 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1502 _EGLSurface *surf = ctx->DrawSurface;
1503 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1504
1505 (void) drv;
1506
1507 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1508 * we need to copy fake to real here.*/
1509
1510 if (dri2_dpy->flush != NULL)
1511 dri2_dpy->flush->flush(dri_drawable);
1512
1513 return EGL_TRUE;
1514 }
1515
1516 static EGLBoolean
dri2_wait_native(_EGLDriver * drv,_EGLDisplay * disp,EGLint engine)1517 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1518 {
1519 (void) drv;
1520 (void) disp;
1521
1522 if (engine != EGL_CORE_NATIVE_ENGINE)
1523 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1524 /* glXWaitX(); */
1525
1526 return EGL_TRUE;
1527 }
1528
1529 static EGLBoolean
dri2_bind_tex_image(_EGLDriver * drv,_EGLDisplay * disp,_EGLSurface * surf,EGLint buffer)1530 dri2_bind_tex_image(_EGLDriver *drv,
1531 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1532 {
1533 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1534 struct dri2_egl_context *dri2_ctx;
1535 _EGLContext *ctx;
1536 GLint format, target;
1537 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1538
1539 ctx = _eglGetCurrentContext();
1540 dri2_ctx = dri2_egl_context(ctx);
1541
1542 if (!_eglBindTexImage(drv, disp, surf, buffer))
1543 return EGL_FALSE;
1544
1545 switch (surf->TextureFormat) {
1546 case EGL_TEXTURE_RGB:
1547 format = __DRI_TEXTURE_FORMAT_RGB;
1548 break;
1549 case EGL_TEXTURE_RGBA:
1550 format = __DRI_TEXTURE_FORMAT_RGBA;
1551 break;
1552 default:
1553 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1554 format = __DRI_TEXTURE_FORMAT_RGBA;
1555 }
1556
1557 switch (surf->TextureTarget) {
1558 case EGL_TEXTURE_2D:
1559 target = GL_TEXTURE_2D;
1560 break;
1561 default:
1562 target = GL_TEXTURE_2D;
1563 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1564 }
1565
1566 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
1567 target, format,
1568 dri_drawable);
1569
1570 return EGL_TRUE;
1571 }
1572
1573 static EGLBoolean
dri2_release_tex_image(_EGLDriver * drv,_EGLDisplay * disp,_EGLSurface * surf,EGLint buffer)1574 dri2_release_tex_image(_EGLDriver *drv,
1575 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1576 {
1577 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1578 struct dri2_egl_context *dri2_ctx;
1579 _EGLContext *ctx;
1580 GLint target;
1581 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1582
1583 ctx = _eglGetCurrentContext();
1584 dri2_ctx = dri2_egl_context(ctx);
1585
1586 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1587 return EGL_FALSE;
1588
1589 switch (surf->TextureTarget) {
1590 case EGL_TEXTURE_2D:
1591 target = GL_TEXTURE_2D;
1592 break;
1593 default:
1594 assert(0);
1595 }
1596
1597 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1598 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1599 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
1600 target, dri_drawable);
1601 }
1602
1603 return EGL_TRUE;
1604 }
1605
1606 static _EGLImage*
dri2_create_image(_EGLDriver * drv,_EGLDisplay * dpy,_EGLContext * ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attr_list)1607 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1608 EGLenum target, EGLClientBuffer buffer,
1609 const EGLint *attr_list)
1610 {
1611 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1612 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1613 attr_list);
1614 }
1615
1616 static _EGLImage *
dri2_create_image_from_dri(_EGLDisplay * disp,__DRIimage * dri_image)1617 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1618 {
1619 struct dri2_egl_image *dri2_img;
1620
1621 if (dri_image == NULL) {
1622 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1623 return NULL;
1624 }
1625
1626 dri2_img = malloc(sizeof *dri2_img);
1627 if (!dri2_img) {
1628 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1629 return NULL;
1630 }
1631
1632 if (!_eglInitImage(&dri2_img->base, disp)) {
1633 free(dri2_img);
1634 return NULL;
1635 }
1636
1637 dri2_img->dri_image = dri_image;
1638
1639 return &dri2_img->base;
1640 }
1641
1642 static _EGLImage *
dri2_create_image_khr_renderbuffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)1643 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1644 EGLClientBuffer buffer,
1645 const EGLint *attr_list)
1646 {
1647 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1648 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1649 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1650 __DRIimage *dri_image;
1651
1652 if (renderbuffer == 0) {
1653 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1654 return EGL_NO_IMAGE_KHR;
1655 }
1656
1657 dri_image =
1658 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1659 renderbuffer, NULL);
1660
1661 return dri2_create_image_from_dri(disp, dri_image);
1662 }
1663
1664 #ifdef HAVE_WAYLAND_PLATFORM
1665
1666 /* This structure describes how a wl_buffer maps to one or more
1667 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1668 * offsets and strides of the planes in the buffer. This table maps a
1669 * wl_drm format code to a description of the planes in the buffer
1670 * that lets us create a __DRIimage for each of the planes. */
1671
1672 static const struct wl_drm_components_descriptor {
1673 uint32_t dri_components;
1674 EGLint components;
1675 int nplanes;
1676 } wl_drm_components[] = {
1677 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1678 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1679 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1680 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1681 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1682 };
1683
1684 static _EGLImage *
dri2_create_image_wayland_wl_buffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer _buffer,const EGLint * attr_list)1685 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1686 EGLClientBuffer _buffer,
1687 const EGLint *attr_list)
1688 {
1689 struct wl_drm_buffer *buffer;
1690 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1691 const struct wl_drm_components_descriptor *f;
1692 __DRIimage *dri_image;
1693 _EGLImageAttribs attrs;
1694 EGLint err;
1695 int32_t plane;
1696
1697 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1698 (struct wl_resource *) _buffer);
1699 if (!buffer)
1700 return NULL;
1701
1702 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1703 plane = attrs.PlaneWL;
1704 if (err != EGL_SUCCESS) {
1705 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1706 return NULL;
1707 }
1708
1709 f = buffer->driver_format;
1710 if (plane < 0 || plane >= f->nplanes) {
1711 _eglError(EGL_BAD_PARAMETER,
1712 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1713 return NULL;
1714 }
1715
1716 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1717
1718 if (dri_image == NULL) {
1719 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1720 return NULL;
1721 }
1722
1723 return dri2_create_image_from_dri(disp, dri_image);
1724 }
1725 #endif
1726
1727 static EGLBoolean
dri2_get_sync_values_chromium(_EGLDisplay * dpy,_EGLSurface * surf,EGLuint64KHR * ust,EGLuint64KHR * msc,EGLuint64KHR * sbc)1728 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1729 EGLuint64KHR *ust, EGLuint64KHR *msc,
1730 EGLuint64KHR *sbc)
1731 {
1732 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1733 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1734 }
1735
1736 /**
1737 * Set the error code after a call to
1738 * dri2_egl_image::dri_image::createImageFromTexture.
1739 */
1740 static void
dri2_create_image_khr_texture_error(int dri_error)1741 dri2_create_image_khr_texture_error(int dri_error)
1742 {
1743 EGLint egl_error;
1744
1745 switch (dri_error) {
1746 case __DRI_IMAGE_ERROR_SUCCESS:
1747 return;
1748
1749 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1750 egl_error = EGL_BAD_ALLOC;
1751 break;
1752
1753 case __DRI_IMAGE_ERROR_BAD_MATCH:
1754 egl_error = EGL_BAD_MATCH;
1755 break;
1756
1757 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1758 egl_error = EGL_BAD_PARAMETER;
1759 break;
1760
1761 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1762 egl_error = EGL_BAD_ACCESS;
1763 break;
1764
1765 default:
1766 assert(0);
1767 egl_error = EGL_BAD_MATCH;
1768 break;
1769 }
1770
1771 _eglError(egl_error, "dri2_create_image_khr_texture");
1772 }
1773
1774 static _EGLImage *
dri2_create_image_khr_texture(_EGLDisplay * disp,_EGLContext * ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attr_list)1775 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1776 EGLenum target,
1777 EGLClientBuffer buffer,
1778 const EGLint *attr_list)
1779 {
1780 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1781 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1782 struct dri2_egl_image *dri2_img;
1783 GLuint texture = (GLuint) (uintptr_t) buffer;
1784 _EGLImageAttribs attrs;
1785 GLuint depth;
1786 GLenum gl_target;
1787 unsigned error;
1788
1789 if (texture == 0) {
1790 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1791 return EGL_NO_IMAGE_KHR;
1792 }
1793
1794 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1795 return EGL_NO_IMAGE_KHR;
1796
1797 switch (target) {
1798 case EGL_GL_TEXTURE_2D_KHR:
1799 depth = 0;
1800 gl_target = GL_TEXTURE_2D;
1801 break;
1802 case EGL_GL_TEXTURE_3D_KHR:
1803 if (disp->Extensions.KHR_gl_texture_3D_image) {
1804 depth = attrs.GLTextureZOffset;
1805 gl_target = GL_TEXTURE_3D;
1806 break;
1807 }
1808 else {
1809 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1810 return EGL_NO_IMAGE_KHR;
1811 }
1812 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1813 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1814 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1815 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1816 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1817 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1818 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1819 gl_target = GL_TEXTURE_CUBE_MAP;
1820 break;
1821 default:
1822 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1823 return EGL_NO_IMAGE_KHR;
1824 }
1825
1826 dri2_img = malloc(sizeof *dri2_img);
1827 if (!dri2_img) {
1828 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1829 return EGL_NO_IMAGE_KHR;
1830 }
1831
1832 if (!_eglInitImage(&dri2_img->base, disp)) {
1833 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1834 free(dri2_img);
1835 return EGL_NO_IMAGE_KHR;
1836 }
1837
1838 dri2_img->dri_image =
1839 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1840 gl_target,
1841 texture,
1842 depth,
1843 attrs.GLTextureLevel,
1844 &error,
1845 dri2_img);
1846 dri2_create_image_khr_texture_error(error);
1847
1848 if (!dri2_img->dri_image) {
1849 free(dri2_img);
1850 return EGL_NO_IMAGE_KHR;
1851 }
1852 return &dri2_img->base;
1853 }
1854
1855 static EGLBoolean
dri2_query_surface(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSurface * surf,EGLint attribute,EGLint * value)1856 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1857 EGLint attribute, EGLint *value)
1858 {
1859 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1860 if (!dri2_dpy->vtbl->query_surface)
1861 return _eglQuerySurface(drv, dpy, surf, attribute, value);
1862 return dri2_dpy->vtbl->query_surface(drv, dpy, surf, attribute, value);
1863 }
1864
1865 static struct wl_buffer*
dri2_create_wayland_buffer_from_image(_EGLDriver * drv,_EGLDisplay * dpy,_EGLImage * img)1866 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1867 _EGLImage *img)
1868 {
1869 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1870 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1871 }
1872
1873 #ifdef HAVE_LIBDRM
1874 static _EGLImage *
dri2_create_image_mesa_drm_buffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)1875 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1876 EGLClientBuffer buffer, const EGLint *attr_list)
1877 {
1878 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1879 EGLint format, name, pitch, err;
1880 _EGLImageAttribs attrs;
1881 __DRIimage *dri_image;
1882
1883 name = (EGLint) (uintptr_t) buffer;
1884
1885 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1886 if (err != EGL_SUCCESS)
1887 return NULL;
1888
1889 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1890 attrs.DRMBufferStrideMESA <= 0) {
1891 _eglError(EGL_BAD_PARAMETER,
1892 "bad width, height or stride");
1893 return NULL;
1894 }
1895
1896 switch (attrs.DRMBufferFormatMESA) {
1897 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1898 format = __DRI_IMAGE_FORMAT_ARGB8888;
1899 pitch = attrs.DRMBufferStrideMESA;
1900 break;
1901 default:
1902 _eglError(EGL_BAD_PARAMETER,
1903 "dri2_create_image_khr: unsupported pixmap depth");
1904 return NULL;
1905 }
1906
1907 dri_image =
1908 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1909 attrs.Width,
1910 attrs.Height,
1911 format,
1912 name,
1913 pitch,
1914 NULL);
1915
1916 return dri2_create_image_from_dri(disp, dri_image);
1917 }
1918
1919 static EGLBoolean
dri2_check_dma_buf_attribs(const _EGLImageAttribs * attrs)1920 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1921 {
1922 unsigned i;
1923
1924 /**
1925 * The spec says:
1926 *
1927 * "Required attributes and their values are as follows:
1928 *
1929 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1930 *
1931 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1932 * by drm_fourcc.h and used as the pixel_format parameter of the
1933 * drm_mode_fb_cmd2 ioctl."
1934 *
1935 * and
1936 *
1937 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1938 * incomplete, EGL_BAD_PARAMETER is generated."
1939 */
1940 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1941 !attrs->DMABufFourCC.IsPresent) {
1942 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1943 return EGL_FALSE;
1944 }
1945
1946 /**
1947 * Also:
1948 *
1949 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1950 * specified for a plane's pitch or offset isn't supported by EGL,
1951 * EGL_BAD_ACCESS is generated."
1952 */
1953 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1954 if (attrs->DMABufPlanePitches[i].IsPresent &&
1955 attrs->DMABufPlanePitches[i].Value <= 0) {
1956 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1957 return EGL_FALSE;
1958 }
1959 }
1960
1961 return EGL_TRUE;
1962 }
1963
1964 /* Returns the total number of file descriptors. Zero indicates an error. */
1965 static unsigned
dri2_check_dma_buf_format(const _EGLImageAttribs * attrs)1966 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1967 {
1968 unsigned i, plane_n;
1969
1970 switch (attrs->DMABufFourCC.Value) {
1971 case DRM_FORMAT_R8:
1972 case DRM_FORMAT_RG88:
1973 case DRM_FORMAT_GR88:
1974 case DRM_FORMAT_RGB332:
1975 case DRM_FORMAT_BGR233:
1976 case DRM_FORMAT_XRGB4444:
1977 case DRM_FORMAT_XBGR4444:
1978 case DRM_FORMAT_RGBX4444:
1979 case DRM_FORMAT_BGRX4444:
1980 case DRM_FORMAT_ARGB4444:
1981 case DRM_FORMAT_ABGR4444:
1982 case DRM_FORMAT_RGBA4444:
1983 case DRM_FORMAT_BGRA4444:
1984 case DRM_FORMAT_XRGB1555:
1985 case DRM_FORMAT_XBGR1555:
1986 case DRM_FORMAT_RGBX5551:
1987 case DRM_FORMAT_BGRX5551:
1988 case DRM_FORMAT_ARGB1555:
1989 case DRM_FORMAT_ABGR1555:
1990 case DRM_FORMAT_RGBA5551:
1991 case DRM_FORMAT_BGRA5551:
1992 case DRM_FORMAT_RGB565:
1993 case DRM_FORMAT_BGR565:
1994 case DRM_FORMAT_RGB888:
1995 case DRM_FORMAT_BGR888:
1996 case DRM_FORMAT_XRGB8888:
1997 case DRM_FORMAT_XBGR8888:
1998 case DRM_FORMAT_RGBX8888:
1999 case DRM_FORMAT_BGRX8888:
2000 case DRM_FORMAT_ARGB8888:
2001 case DRM_FORMAT_ABGR8888:
2002 case DRM_FORMAT_RGBA8888:
2003 case DRM_FORMAT_BGRA8888:
2004 case DRM_FORMAT_XRGB2101010:
2005 case DRM_FORMAT_XBGR2101010:
2006 case DRM_FORMAT_RGBX1010102:
2007 case DRM_FORMAT_BGRX1010102:
2008 case DRM_FORMAT_ARGB2101010:
2009 case DRM_FORMAT_ABGR2101010:
2010 case DRM_FORMAT_RGBA1010102:
2011 case DRM_FORMAT_BGRA1010102:
2012 case DRM_FORMAT_YUYV:
2013 case DRM_FORMAT_YVYU:
2014 case DRM_FORMAT_UYVY:
2015 case DRM_FORMAT_VYUY:
2016 plane_n = 1;
2017 break;
2018 case DRM_FORMAT_NV12:
2019 case DRM_FORMAT_NV21:
2020 case DRM_FORMAT_NV16:
2021 case DRM_FORMAT_NV61:
2022 plane_n = 2;
2023 break;
2024 case DRM_FORMAT_YUV410:
2025 case DRM_FORMAT_YVU410:
2026 case DRM_FORMAT_YUV411:
2027 case DRM_FORMAT_YVU411:
2028 case DRM_FORMAT_YUV420:
2029 case DRM_FORMAT_YVU420:
2030 case DRM_FORMAT_YUV422:
2031 case DRM_FORMAT_YVU422:
2032 case DRM_FORMAT_YUV444:
2033 case DRM_FORMAT_YVU444:
2034 plane_n = 3;
2035 break;
2036 default:
2037 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
2038 return 0;
2039 }
2040
2041 /**
2042 * The spec says:
2043 *
2044 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2045 * incomplete, EGL_BAD_PARAMETER is generated."
2046 */
2047 for (i = 0; i < plane_n; ++i) {
2048 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2049 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2050 !attrs->DMABufPlanePitches[i].IsPresent) {
2051 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2052 return 0;
2053 }
2054 }
2055
2056 /**
2057 * The spec also says:
2058 *
2059 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2060 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2061 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2062 * attributes are specified."
2063 */
2064 for (i = plane_n; i < 3; ++i) {
2065 if (attrs->DMABufPlaneFds[i].IsPresent ||
2066 attrs->DMABufPlaneOffsets[i].IsPresent ||
2067 attrs->DMABufPlanePitches[i].IsPresent) {
2068 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2069 return 0;
2070 }
2071 }
2072
2073 return plane_n;
2074 }
2075
2076 /**
2077 * The spec says:
2078 *
2079 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2080 * EGL will take a reference to the dma_buf(s) which it will release at any
2081 * time while the EGLDisplay is initialized. It is the responsibility of the
2082 * application to close the dma_buf file descriptors."
2083 *
2084 * Therefore we must never close or otherwise modify the file descriptors.
2085 */
2086 _EGLImage *
dri2_create_image_dma_buf(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)2087 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2088 EGLClientBuffer buffer, const EGLint *attr_list)
2089 {
2090 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2091 _EGLImage *res;
2092 EGLint err;
2093 _EGLImageAttribs attrs;
2094 __DRIimage *dri_image;
2095 unsigned num_fds;
2096 unsigned i;
2097 int fds[3];
2098 int pitches[3];
2099 int offsets[3];
2100 unsigned error;
2101
2102 /**
2103 * The spec says:
2104 *
2105 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2106 * error EGL_BAD_PARAMETER is generated."
2107 */
2108 if (buffer != NULL) {
2109 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2110 return NULL;
2111 }
2112
2113 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2114 if (err != EGL_SUCCESS) {
2115 _eglError(err, "bad attribute");
2116 return NULL;
2117 }
2118
2119 if (!dri2_check_dma_buf_attribs(&attrs))
2120 return NULL;
2121
2122 num_fds = dri2_check_dma_buf_format(&attrs);
2123 if (!num_fds)
2124 return NULL;
2125
2126 for (i = 0; i < num_fds; ++i) {
2127 fds[i] = attrs.DMABufPlaneFds[i].Value;
2128 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2129 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2130 }
2131
2132 dri_image =
2133 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2134 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2135 fds, num_fds, pitches, offsets,
2136 attrs.DMABufYuvColorSpaceHint.Value,
2137 attrs.DMABufSampleRangeHint.Value,
2138 attrs.DMABufChromaHorizontalSiting.Value,
2139 attrs.DMABufChromaVerticalSiting.Value,
2140 &error,
2141 NULL);
2142 dri2_create_image_khr_texture_error(error);
2143
2144 if (!dri_image)
2145 return EGL_NO_IMAGE_KHR;
2146
2147 res = dri2_create_image_from_dri(disp, dri_image);
2148
2149 return res;
2150 }
2151 static _EGLImage *
dri2_create_drm_image_mesa(_EGLDriver * drv,_EGLDisplay * disp,const EGLint * attr_list)2152 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2153 const EGLint *attr_list)
2154 {
2155 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2156 struct dri2_egl_image *dri2_img;
2157 _EGLImageAttribs attrs;
2158 unsigned int dri_use, valid_mask;
2159 int format;
2160 EGLint err = EGL_SUCCESS;
2161
2162 (void) drv;
2163
2164 dri2_img = malloc(sizeof *dri2_img);
2165 if (!dri2_img) {
2166 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2167 return EGL_NO_IMAGE_KHR;
2168 }
2169
2170 if (!attr_list) {
2171 err = EGL_BAD_PARAMETER;
2172 goto cleanup_img;
2173 }
2174
2175 if (!_eglInitImage(&dri2_img->base, disp)) {
2176 err = EGL_BAD_PARAMETER;
2177 goto cleanup_img;
2178 }
2179
2180 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2181 if (err != EGL_SUCCESS)
2182 goto cleanup_img;
2183
2184 if (attrs.Width <= 0 || attrs.Height <= 0) {
2185 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2186 attrs.Width, attrs.Height);
2187 goto cleanup_img;
2188 }
2189
2190 switch (attrs.DRMBufferFormatMESA) {
2191 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2192 format = __DRI_IMAGE_FORMAT_ARGB8888;
2193 break;
2194 default:
2195 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2196 attrs.DRMBufferFormatMESA);
2197 goto cleanup_img;
2198 }
2199
2200 valid_mask =
2201 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2202 EGL_DRM_BUFFER_USE_SHARE_MESA |
2203 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2204 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2205 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2206 attrs.DRMBufferUseMESA & ~valid_mask);
2207 goto cleanup_img;
2208 }
2209
2210 dri_use = 0;
2211 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2212 dri_use |= __DRI_IMAGE_USE_SHARE;
2213 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2214 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2215 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2216 dri_use |= __DRI_IMAGE_USE_CURSOR;
2217
2218 dri2_img->dri_image =
2219 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2220 attrs.Width, attrs.Height,
2221 format, dri_use, dri2_img);
2222 if (dri2_img->dri_image == NULL) {
2223 err = EGL_BAD_ALLOC;
2224 goto cleanup_img;
2225 }
2226
2227 return &dri2_img->base;
2228
2229 cleanup_img:
2230 free(dri2_img);
2231 _eglError(err, "dri2_create_drm_image_mesa");
2232
2233 return EGL_NO_IMAGE_KHR;
2234 }
2235
2236 static EGLBoolean
dri2_export_drm_image_mesa(_EGLDriver * drv,_EGLDisplay * disp,_EGLImage * img,EGLint * name,EGLint * handle,EGLint * stride)2237 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2238 EGLint *name, EGLint *handle, EGLint *stride)
2239 {
2240 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2241 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2242
2243 (void) drv;
2244
2245 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2246 __DRI_IMAGE_ATTRIB_NAME, name)) {
2247 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2248 return EGL_FALSE;
2249 }
2250
2251 if (handle)
2252 dri2_dpy->image->queryImage(dri2_img->dri_image,
2253 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2254
2255 if (stride)
2256 dri2_dpy->image->queryImage(dri2_img->dri_image,
2257 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2258
2259 return EGL_TRUE;
2260 }
2261
2262 static EGLBoolean
dri2_export_dma_buf_image_query_mesa(_EGLDriver * drv,_EGLDisplay * disp,_EGLImage * img,EGLint * fourcc,EGLint * nplanes,EGLuint64KHR * modifiers)2263 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2264 _EGLImage *img,
2265 EGLint *fourcc, EGLint *nplanes,
2266 EGLuint64KHR *modifiers)
2267 {
2268 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2269 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2270
2271 (void) drv;
2272
2273
2274 if (nplanes)
2275 dri2_dpy->image->queryImage(dri2_img->dri_image,
2276 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2277 if (fourcc)
2278 dri2_dpy->image->queryImage(dri2_img->dri_image,
2279 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2280
2281 if (modifiers)
2282 *modifiers = 0;
2283
2284 return EGL_TRUE;
2285 }
2286
2287 static EGLBoolean
dri2_export_dma_buf_image_mesa(_EGLDriver * drv,_EGLDisplay * disp,_EGLImage * img,int * fds,EGLint * strides,EGLint * offsets)2288 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2289 int *fds, EGLint *strides, EGLint *offsets)
2290 {
2291 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2292 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2293
2294 (void) drv;
2295
2296 /* rework later to provide multiple fds/strides/offsets */
2297 if (fds)
2298 dri2_dpy->image->queryImage(dri2_img->dri_image,
2299 __DRI_IMAGE_ATTRIB_FD, fds);
2300
2301 if (strides)
2302 dri2_dpy->image->queryImage(dri2_img->dri_image,
2303 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2304
2305 if (offsets) {
2306 int img_offset;
2307 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2308 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2309 if (ret)
2310 offsets[0] = img_offset;
2311 else
2312 offsets[0] = 0;
2313 }
2314
2315 return EGL_TRUE;
2316 }
2317
2318 #endif
2319
2320 _EGLImage *
dri2_create_image_khr(_EGLDriver * drv,_EGLDisplay * disp,_EGLContext * ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attr_list)2321 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2322 _EGLContext *ctx, EGLenum target,
2323 EGLClientBuffer buffer, const EGLint *attr_list)
2324 {
2325 (void) drv;
2326
2327 switch (target) {
2328 case EGL_GL_TEXTURE_2D_KHR:
2329 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2330 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2331 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2332 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2333 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2334 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2335 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2336 case EGL_GL_TEXTURE_3D_KHR:
2337 if (disp->Extensions.KHR_gl_texture_3D_image) {
2338 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2339 }
2340 else {
2341 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2342 return EGL_NO_IMAGE_KHR;
2343 }
2344 case EGL_GL_RENDERBUFFER_KHR:
2345 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2346 #ifdef HAVE_LIBDRM
2347 case EGL_DRM_BUFFER_MESA:
2348 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2349 case EGL_LINUX_DMA_BUF_EXT:
2350 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2351 #endif
2352 #ifdef HAVE_WAYLAND_PLATFORM
2353 case EGL_WAYLAND_BUFFER_WL:
2354 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2355 #endif
2356 default:
2357 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2358 return EGL_NO_IMAGE_KHR;
2359 }
2360 }
2361
2362 static EGLBoolean
dri2_destroy_image_khr(_EGLDriver * drv,_EGLDisplay * disp,_EGLImage * image)2363 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2364 {
2365 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2366 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2367
2368 (void) drv;
2369
2370 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2371 free(dri2_img);
2372
2373 return EGL_TRUE;
2374 }
2375
2376 #ifdef HAVE_WAYLAND_PLATFORM
2377
2378 static void
dri2_wl_reference_buffer(void * user_data,uint32_t name,int fd,struct wl_drm_buffer * buffer)2379 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2380 struct wl_drm_buffer *buffer)
2381 {
2382 _EGLDisplay *disp = user_data;
2383 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2384 __DRIimage *img;
2385 int i, dri_components = 0;
2386
2387 if (fd == -1)
2388 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2389 buffer->width,
2390 buffer->height,
2391 buffer->format,
2392 (int*)&name, 1,
2393 buffer->stride,
2394 buffer->offset,
2395 NULL);
2396 else
2397 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2398 buffer->width,
2399 buffer->height,
2400 buffer->format,
2401 &fd, 1,
2402 buffer->stride,
2403 buffer->offset,
2404 NULL);
2405
2406 if (img == NULL)
2407 return;
2408
2409 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2410
2411 buffer->driver_format = NULL;
2412 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2413 if (wl_drm_components[i].dri_components == dri_components)
2414 buffer->driver_format = &wl_drm_components[i];
2415
2416 if (buffer->driver_format == NULL)
2417 dri2_dpy->image->destroyImage(img);
2418 else
2419 buffer->driver_buffer = img;
2420 }
2421
2422 static void
dri2_wl_release_buffer(void * user_data,struct wl_drm_buffer * buffer)2423 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2424 {
2425 _EGLDisplay *disp = user_data;
2426 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2427
2428 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2429 }
2430
2431 static struct wayland_drm_callbacks wl_drm_callbacks = {
2432 .authenticate = NULL,
2433 .reference_buffer = dri2_wl_reference_buffer,
2434 .release_buffer = dri2_wl_release_buffer
2435 };
2436
2437 static EGLBoolean
dri2_bind_wayland_display_wl(_EGLDriver * drv,_EGLDisplay * disp,struct wl_display * wl_dpy)2438 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2439 struct wl_display *wl_dpy)
2440 {
2441 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2442 int flags = 0;
2443 uint64_t cap;
2444
2445 (void) drv;
2446
2447 if (dri2_dpy->wl_server_drm)
2448 return EGL_FALSE;
2449
2450 wl_drm_callbacks.authenticate =
2451 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2452
2453 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2454 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2455 dri2_dpy->image->base.version >= 7 &&
2456 dri2_dpy->image->createImageFromFds != NULL)
2457 flags |= WAYLAND_DRM_PRIME;
2458
2459 dri2_dpy->wl_server_drm =
2460 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2461 &wl_drm_callbacks, disp, flags);
2462
2463 if (!dri2_dpy->wl_server_drm)
2464 return EGL_FALSE;
2465
2466 #ifdef HAVE_DRM_PLATFORM
2467 /* We have to share the wl_drm instance with gbm, so gbm can convert
2468 * wl_buffers to gbm bos. */
2469 if (dri2_dpy->gbm_dri)
2470 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2471 #endif
2472
2473 return EGL_TRUE;
2474 }
2475
2476 static EGLBoolean
dri2_unbind_wayland_display_wl(_EGLDriver * drv,_EGLDisplay * disp,struct wl_display * wl_dpy)2477 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2478 struct wl_display *wl_dpy)
2479 {
2480 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2481
2482 (void) drv;
2483
2484 if (!dri2_dpy->wl_server_drm)
2485 return EGL_FALSE;
2486
2487 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2488 dri2_dpy->wl_server_drm = NULL;
2489
2490 return EGL_TRUE;
2491 }
2492
2493 static EGLBoolean
dri2_query_wayland_buffer_wl(_EGLDriver * drv,_EGLDisplay * disp,struct wl_resource * buffer_resource,EGLint attribute,EGLint * value)2494 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2495 struct wl_resource *buffer_resource,
2496 EGLint attribute, EGLint *value)
2497 {
2498 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2499 struct wl_drm_buffer *buffer;
2500 const struct wl_drm_components_descriptor *format;
2501
2502 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2503 if (!buffer)
2504 return EGL_FALSE;
2505
2506 format = buffer->driver_format;
2507 switch (attribute) {
2508 case EGL_TEXTURE_FORMAT:
2509 *value = format->components;
2510 return EGL_TRUE;
2511 case EGL_WIDTH:
2512 *value = buffer->width;
2513 return EGL_TRUE;
2514 case EGL_HEIGHT:
2515 *value = buffer->height;
2516 return EGL_TRUE;
2517 }
2518
2519 return EGL_FALSE;
2520 }
2521 #endif
2522
2523 static void
dri2_egl_ref_sync(struct dri2_egl_sync * sync)2524 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2525 {
2526 p_atomic_inc(&sync->refcount);
2527 }
2528
2529 static void
dri2_egl_unref_sync(struct dri2_egl_display * dri2_dpy,struct dri2_egl_sync * dri2_sync)2530 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2531 struct dri2_egl_sync *dri2_sync)
2532 {
2533 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2534 switch (dri2_sync->base.Type) {
2535 case EGL_SYNC_REUSABLE_KHR:
2536 cnd_destroy(&dri2_sync->cond);
2537 break;
2538 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2539 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
2540 close(dri2_sync->base.SyncFd);
2541 break;
2542 default:
2543 break;
2544 }
2545
2546 if (dri2_sync->fence)
2547 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2548
2549 free(dri2_sync);
2550 }
2551 }
2552
2553 static _EGLSync *
dri2_create_sync(_EGLDriver * drv,_EGLDisplay * dpy,EGLenum type,const EGLAttrib * attrib_list)2554 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2555 EGLenum type, const EGLAttrib *attrib_list)
2556 {
2557 _EGLContext *ctx = _eglGetCurrentContext();
2558 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2559 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2560 struct dri2_egl_sync *dri2_sync;
2561 EGLint ret;
2562 pthread_condattr_t attr;
2563
2564 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2565 if (!dri2_sync) {
2566 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2567 return NULL;
2568 }
2569
2570 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list)) {
2571 free(dri2_sync);
2572 return NULL;
2573 }
2574
2575 switch (type) {
2576 case EGL_SYNC_FENCE_KHR:
2577 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2578 if (!dri2_sync->fence) {
2579 /* Why did it fail? DRI doesn't return an error code, so we emit
2580 * a generic EGL error that doesn't communicate user error.
2581 */
2582 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2583 free(dri2_sync);
2584 return NULL;
2585 }
2586 break;
2587
2588 case EGL_SYNC_CL_EVENT_KHR:
2589 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2590 dri2_dpy->dri_screen,
2591 dri2_sync->base.CLEvent);
2592 /* this can only happen if the cl_event passed in is invalid. */
2593 if (!dri2_sync->fence) {
2594 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2595 free(dri2_sync);
2596 return NULL;
2597 }
2598
2599 /* the initial status must be "signaled" if the cl_event is signaled */
2600 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2601 dri2_sync->fence, 0, 0))
2602 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2603 break;
2604
2605 case EGL_SYNC_REUSABLE_KHR:
2606 /* intialize attr */
2607 ret = pthread_condattr_init(&attr);
2608
2609 if (ret) {
2610 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2611 free(dri2_sync);
2612 return NULL;
2613 }
2614
2615 /* change clock attribute to CLOCK_MONOTONIC */
2616 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2617
2618 if (ret) {
2619 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2620 free(dri2_sync);
2621 return NULL;
2622 }
2623
2624 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2625
2626 if (ret) {
2627 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2628 free(dri2_sync);
2629 return NULL;
2630 }
2631
2632 /* initial status of reusable sync must be "unsignaled" */
2633 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2634 break;
2635
2636 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2637 if (dri2_dpy->fence->create_fence_fd) {
2638 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
2639 dri2_ctx->dri_context,
2640 dri2_sync->base.SyncFd);
2641 }
2642 if (!dri2_sync->fence) {
2643 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2644 free(dri2_sync);
2645 return NULL;
2646 }
2647 break;
2648 }
2649
2650 p_atomic_set(&dri2_sync->refcount, 1);
2651 return &dri2_sync->base;
2652 }
2653
2654 static EGLBoolean
dri2_destroy_sync(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSync * sync)2655 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2656 {
2657 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2658 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2659 EGLint ret = EGL_TRUE;
2660 EGLint err;
2661
2662 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2663 * then unlock all threads possibly blocked by the reusable sync before
2664 * destroying it.
2665 */
2666 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2667 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2668 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2669 /* unblock all threads currently blocked by sync */
2670 err = cnd_broadcast(&dri2_sync->cond);
2671
2672 if (err) {
2673 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2674 ret = EGL_FALSE;
2675 }
2676 }
2677
2678 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2679
2680 return ret;
2681 }
2682
2683 static EGLint
dri2_dup_native_fence_fd(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSync * sync)2684 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2685 {
2686 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2687 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2688
2689 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
2690
2691 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2692 /* try to retrieve the actual native fence fd.. if rendering is
2693 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
2694 */
2695 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
2696 dri2_sync->fence);
2697 }
2698
2699 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
2700 /* if native fence fd still not created, return an error: */
2701 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
2702 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
2703 }
2704
2705 return dup(sync->SyncFd);
2706 }
2707
2708 static EGLint
dri2_client_wait_sync(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSync * sync,EGLint flags,EGLTime timeout)2709 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2710 EGLint flags, EGLTime timeout)
2711 {
2712 _EGLContext *ctx = _eglGetCurrentContext();
2713 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2714 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2715 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2716 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2717 unsigned wait_flags = 0;
2718
2719 /* timespecs for cnd_timedwait */
2720 struct timespec current;
2721 xtime expire;
2722
2723 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2724
2725 /* The EGL_KHR_fence_sync spec states:
2726 *
2727 * "If no context is current for the bound API,
2728 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2729 */
2730 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2731 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2732
2733 /* the sync object should take a reference while waiting */
2734 dri2_egl_ref_sync(dri2_sync);
2735
2736 switch (sync->Type) {
2737 case EGL_SYNC_FENCE_KHR:
2738 case EGL_SYNC_NATIVE_FENCE_ANDROID:
2739 case EGL_SYNC_CL_EVENT_KHR:
2740 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2741 dri2_sync->fence, wait_flags,
2742 timeout))
2743 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2744 else
2745 ret = EGL_TIMEOUT_EXPIRED_KHR;
2746 break;
2747
2748 case EGL_SYNC_REUSABLE_KHR:
2749 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2750 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2751 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2752 dri2_drv->glFlush();
2753 }
2754
2755 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2756 if (timeout == EGL_FOREVER_KHR) {
2757 mtx_lock(&dri2_sync->mutex);
2758 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2759 mtx_unlock(&dri2_sync->mutex);
2760 } else {
2761 /* if reusable sync has not been yet signaled */
2762 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2763 clock_gettime(CLOCK_MONOTONIC, ¤t);
2764
2765 /* calculating when to expire */
2766 expire.nsec = timeout % 1000000000L;
2767 expire.sec = timeout / 1000000000L;
2768
2769 expire.nsec += current.tv_nsec;
2770 expire.sec += current.tv_sec;
2771
2772 /* expire.nsec now is a number between 0 and 1999999998 */
2773 if (expire.nsec > 999999999L) {
2774 expire.sec++;
2775 expire.nsec -= 1000000000L;
2776 }
2777
2778 mtx_lock(&dri2_sync->mutex);
2779 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2780 mtx_unlock(&dri2_sync->mutex);
2781
2782 if (ret == thrd_busy) {
2783 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2784 ret = EGL_TIMEOUT_EXPIRED_KHR;
2785 } else {
2786 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2787 ret = EGL_FALSE;
2788 }
2789 }
2790 }
2791 }
2792 break;
2793 }
2794 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2795
2796 return ret;
2797 }
2798
2799 static EGLBoolean
dri2_signal_sync(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSync * sync,EGLenum mode)2800 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2801 EGLenum mode)
2802 {
2803 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2804 EGLint ret;
2805
2806 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2807 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2808 return EGL_FALSE;
2809 }
2810
2811 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2812 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2813 return EGL_FALSE;
2814 }
2815
2816 dri2_sync->base.SyncStatus = mode;
2817
2818 if (mode == EGL_SIGNALED_KHR) {
2819 ret = cnd_broadcast(&dri2_sync->cond);
2820
2821 /* fail to broadcast */
2822 if (ret) {
2823 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2824 return EGL_FALSE;
2825 }
2826 }
2827
2828 return EGL_TRUE;
2829 }
2830
2831 static EGLint
dri2_server_wait_sync(_EGLDriver * drv,_EGLDisplay * dpy,_EGLSync * sync)2832 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2833 {
2834 _EGLContext *ctx = _eglGetCurrentContext();
2835 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2836 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2837 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2838
2839 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2840 dri2_sync->fence, 0);
2841 return EGL_TRUE;
2842 }
2843
2844 static int
dri2_interop_query_device_info(_EGLDisplay * dpy,_EGLContext * ctx,struct mesa_glinterop_device_info * out)2845 dri2_interop_query_device_info(_EGLDisplay *dpy, _EGLContext *ctx,
2846 struct mesa_glinterop_device_info *out)
2847 {
2848 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2849 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2850
2851 if (!dri2_dpy->interop)
2852 return MESA_GLINTEROP_UNSUPPORTED;
2853
2854 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
2855 }
2856
2857 static int
dri2_interop_export_object(_EGLDisplay * dpy,_EGLContext * ctx,struct mesa_glinterop_export_in * in,struct mesa_glinterop_export_out * out)2858 dri2_interop_export_object(_EGLDisplay *dpy, _EGLContext *ctx,
2859 struct mesa_glinterop_export_in *in,
2860 struct mesa_glinterop_export_out *out)
2861 {
2862 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2863 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2864
2865 if (!dri2_dpy->interop)
2866 return MESA_GLINTEROP_UNSUPPORTED;
2867
2868 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
2869 }
2870
2871 static void
dri2_unload(_EGLDriver * drv)2872 dri2_unload(_EGLDriver *drv)
2873 {
2874 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2875
2876 dlclose(dri2_drv->handle);
2877 free(dri2_drv);
2878 }
2879
2880 static EGLBoolean
dri2_load(_EGLDriver * drv)2881 dri2_load(_EGLDriver *drv)
2882 {
2883 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2884 #ifdef HAVE_ANDROID_PLATFORM
2885 const char *libname = "libglapi.so";
2886 #elif defined(__APPLE__)
2887 const char *libname = "libglapi.0.dylib";
2888 #elif defined(__CYGWIN__)
2889 const char *libname = "cygglapi-0.dll";
2890 #else
2891 const char *libname = "libglapi.so.0";
2892 #endif
2893 void *handle;
2894
2895 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2896 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2897 if (!handle) {
2898 _eglLog(_EGL_WARNING, "DRI2: failed to open glapi provider");
2899 goto no_handle;
2900 }
2901
2902 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2903 dlsym(handle, "_glapi_get_proc_address");
2904
2905 /* if glapi is not available, loading DRI drivers will fail */
2906 if (!dri2_drv->get_proc_address) {
2907 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2908 goto no_symbol;
2909 }
2910
2911 dri2_drv->glFlush = (void (*)(void))
2912 dri2_drv->get_proc_address("glFlush");
2913
2914 /* if glFlush is not available things are horribly broken */
2915 if (!dri2_drv->glFlush) {
2916 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
2917 goto no_symbol;
2918 }
2919
2920 dri2_drv->handle = handle;
2921 return EGL_TRUE;
2922
2923 no_symbol:
2924 dlclose(handle);
2925 no_handle:
2926 return EGL_FALSE;
2927 }
2928
2929 /**
2930 * This is the main entrypoint into the driver, called by libEGL.
2931 * Create a new _EGLDriver object and init its dispatch table.
2932 */
2933 _EGLDriver *
_eglBuiltInDriverDRI2(const char * args)2934 _eglBuiltInDriverDRI2(const char *args)
2935 {
2936 struct dri2_egl_driver *dri2_drv;
2937
2938 (void) args;
2939
2940 dri2_drv = calloc(1, sizeof *dri2_drv);
2941 if (!dri2_drv)
2942 return NULL;
2943
2944 if (!dri2_load(&dri2_drv->base)) {
2945 free(dri2_drv);
2946 return NULL;
2947 }
2948
2949 _eglInitDriverFallbacks(&dri2_drv->base);
2950 dri2_drv->base.API.Initialize = dri2_initialize;
2951 dri2_drv->base.API.Terminate = dri2_terminate;
2952 dri2_drv->base.API.CreateContext = dri2_create_context;
2953 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2954 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2955 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2956 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2957 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2958 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2959 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2960 dri2_drv->base.API.WaitClient = dri2_wait_client;
2961 dri2_drv->base.API.WaitNative = dri2_wait_native;
2962 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2963 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2964 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2965 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2966 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2967 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2968 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2969 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2970 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2971 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2972 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2973 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2974 dri2_drv->base.API.QuerySurface = dri2_query_surface;
2975 #ifdef HAVE_LIBDRM
2976 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2977 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2978 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2979 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2980 #endif
2981 #ifdef HAVE_WAYLAND_PLATFORM
2982 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2983 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2984 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2985 #endif
2986 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2987 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2988 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2989 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2990 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2991 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2992 dri2_drv->base.API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
2993 dri2_drv->base.API.GLInteropExportObject = dri2_interop_export_object;
2994 dri2_drv->base.API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
2995
2996 dri2_drv->base.Name = "DRI2";
2997 dri2_drv->base.Unload = dri2_unload;
2998
2999 return &dri2_drv->base;
3000 }
3001