projects / mesa.git / blob
? search:


490b0409c98e91122f1ee41d3ea992c7887505c5
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #include <c11/threads.h>
42 #include <time.h>
43 #ifdef HAVE_LIBDRM
44 #include <xf86drm.h>
45 #include <drm_fourcc.h>
46 #endif
47 #include <GL/gl.h>
48 #include <GL/internal/dri_interface.h>
49 #include <sys/types.h>
50 #include <sys/stat.h>
51
52 #ifdef HAVE_WAYLAND_PLATFORM
53 #include "wayland-drm.h"
54 #include "wayland-drm-client-protocol.h"
55 #endif
56
57 #include "egl_dri2.h"
58 #include "util/u_atomic.h"
59
60 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
61 * some of the definitions here so that building Mesa won't bleeding-edge
62 * kernel headers.
63 */
64 #ifndef DRM_FORMAT_R8
65 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
66 #endif
67
68 #ifndef DRM_FORMAT_RG88
69 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
70 #endif
71
72 #ifndef DRM_FORMAT_GR88
73 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
74 #endif
75
76 const __DRIuseInvalidateExtension use_invalidate = {
77 .base = { __DRI_USE_INVALIDATE, 1 }
78 };
79
80 EGLint dri2_to_egl_attribute_map[] = {
81 0,
82 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
83 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
84 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
85 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
86 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
87 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
88 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
89 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
90 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
91 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
92 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
93 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
94 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
95 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
96 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
97 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
98 0, /* __DRI_ATTRIB_RENDER_TYPE, */
99 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
100 0, /* __DRI_ATTRIB_CONFORMANT */
101 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
102 0, /* __DRI_ATTRIB_STEREO */
103 0, /* __DRI_ATTRIB_AUX_BUFFERS */
104 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
105 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
106 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
108 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
109 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
110 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
111 0, /* __DRI_ATTRIB_RED_MASK */
112 0, /* __DRI_ATTRIB_GREEN_MASK */
113 0, /* __DRI_ATTRIB_BLUE_MASK */
114 0, /* __DRI_ATTRIB_ALPHA_MASK */
115 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
116 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
117 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
118 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
119 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
120 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
121 0, /* __DRI_ATTRIB_SWAP_METHOD */
122 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
123 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
124 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
125 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
126 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
127 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
128 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
129 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
130 };
131
132 const __DRIconfig *
133 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
134 EGLenum colorspace)
135 {
136 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
137
138 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config[srgb] :
139 conf->dri_single_config[srgb];
140 }
141
142 static EGLBoolean
143 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
144 {
145 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
146 return EGL_FALSE;
147
148 if (!_eglMatchConfig(conf, criteria))
149 return EGL_FALSE;
150
151 return EGL_TRUE;
152 }
153
154 struct dri2_egl_config *
155 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
156 EGLint surface_type, const EGLint *attr_list,
157 const unsigned int *rgba_masks)
158 {
159 struct dri2_egl_config *conf;
160 struct dri2_egl_display *dri2_dpy;
161 _EGLConfig base;
162 unsigned int attrib, value, double_buffer;
163 bool srgb = false;
164 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
165 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
166 _EGLConfig *matching_config;
167 EGLint num_configs = 0;
168 EGLint config_id;
169 int i;
170
171 dri2_dpy = disp->DriverData;
172 _eglInitConfig(&base, disp, id);
173
174 i = 0;
175 double_buffer = 0;
176 bind_to_texture_rgb = 0;
177 bind_to_texture_rgba = 0;
178
179 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
180 switch (attrib) {
181 case __DRI_ATTRIB_RENDER_TYPE:
182 if (value & __DRI_ATTRIB_RGBA_BIT)
183 value = EGL_RGB_BUFFER;
184 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
185 value = EGL_LUMINANCE_BUFFER;
186 else
187 return NULL;
188 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
189 break;
190
191 case __DRI_ATTRIB_CONFIG_CAVEAT:
192 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
193 value = EGL_NON_CONFORMANT_CONFIG;
194 else if (value & __DRI_ATTRIB_SLOW_BIT)
195 value = EGL_SLOW_CONFIG;
196 else
197 value = EGL_NONE;
198 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
199 break;
200
201 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
202 bind_to_texture_rgb = value;
203 break;
204
205 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
206 bind_to_texture_rgba = value;
207 break;
208
209 case __DRI_ATTRIB_DOUBLE_BUFFER:
210 double_buffer = value;
211 break;
212
213 case __DRI_ATTRIB_RED_MASK:
214 dri_masks[0] = value;
215 break;
216
217 case __DRI_ATTRIB_GREEN_MASK:
218 dri_masks[1] = value;
219 break;
220
221 case __DRI_ATTRIB_BLUE_MASK:
222 dri_masks[2] = value;
223 break;
224
225 case __DRI_ATTRIB_ALPHA_MASK:
226 dri_masks[3] = value;
227 break;
228
229 case __DRI_ATTRIB_ACCUM_RED_SIZE:
230 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
231 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
232 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
233 /* Don't expose visuals with the accumulation buffer. */
234 if (value > 0)
235 return NULL;
236 break;
237
238 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
239 srgb = value != 0;
240 if (!disp->Extensions.KHR_gl_colorspace && srgb)
241 return NULL;
242 break;
243
244 default:
245 key = dri2_to_egl_attribute_map[attrib];
246 if (key != 0)
247 _eglSetConfigKey(&base, key, value);
248 break;
249 }
250 }
251
252 if (attr_list)
253 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
254 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
255
256 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
257 return NULL;
258
259 base.NativeRenderable = EGL_TRUE;
260
261 base.SurfaceType = surface_type;
262 if (surface_type & (EGL_PBUFFER_BIT |
263 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
264 base.BindToTextureRGB = bind_to_texture_rgb;
265 if (base.AlphaSize > 0)
266 base.BindToTextureRGBA = bind_to_texture_rgba;
267 }
268
269 base.RenderableType = disp->ClientAPIs;
270 base.Conformant = disp->ClientAPIs;
271
272 base.MinSwapInterval = dri2_dpy->min_swap_interval;
273 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
274
275 if (!_eglValidateConfig(&base, EGL_FALSE)) {
276 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
277 return NULL;
278 }
279
280 config_id = base.ConfigID;
281 base.ConfigID = EGL_DONT_CARE;
282 base.SurfaceType = EGL_DONT_CARE;
283 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
284 (_EGLArrayForEach) dri2_match_config, &base);
285
286 if (num_configs == 1) {
287 conf = (struct dri2_egl_config *) matching_config;
288
289 if (double_buffer && !conf->dri_double_config[srgb])
290 conf->dri_double_config[srgb] = dri_config;
291 else if (!double_buffer && !conf->dri_single_config[srgb])
292 conf->dri_single_config[srgb] = dri_config;
293 else
294 /* a similar config type is already added (unlikely) => discard */
295 return NULL;
296 }
297 else if (num_configs == 0) {
298 conf = calloc(1, sizeof *conf);
299 if (conf == NULL)
300 return NULL;
301
302 if (double_buffer)
303 conf->dri_double_config[srgb] = dri_config;
304 else
305 conf->dri_single_config[srgb] = dri_config;
306
307 memcpy(&conf->base, &base, sizeof base);
308 conf->base.SurfaceType = 0;
309 conf->base.ConfigID = config_id;
310
311 _eglLinkConfig(&conf->base);
312 }
313 else {
314 assert(0);
315 return NULL;
316 }
317
318 if (double_buffer) {
319 surface_type &= ~EGL_PIXMAP_BIT;
320 }
321
322 conf->base.SurfaceType |= surface_type;
323
324 return conf;
325 }
326
327 __DRIimage *
328 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
329 {
330 _EGLDisplay *disp = data;
331 struct dri2_egl_image *dri2_img;
332 _EGLImage *img;
333
334 (void) screen;
335
336 img = _eglLookupImage(image, disp);
337 if (img == NULL) {
338 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
339 return NULL;
340 }
341
342 dri2_img = dri2_egl_image(image);
343
344 return dri2_img->dri_image;
345 }
346
347 const __DRIimageLookupExtension image_lookup_extension = {
348 .base = { __DRI_IMAGE_LOOKUP, 1 },
349
350 .lookupEGLImage = dri2_lookup_egl_image
351 };
352
353 struct dri2_extension_match {
354 const char *name;
355 int version;
356 int offset;
357 };
358
359 static struct dri2_extension_match dri3_driver_extensions[] = {
360 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
361 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
362 { NULL, 0, 0 }
363 };
364
365 static struct dri2_extension_match dri2_driver_extensions[] = {
366 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
367 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
368 { NULL, 0, 0 }
369 };
370
371 static struct dri2_extension_match dri2_core_extensions[] = {
372 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
373 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
374 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
375 { NULL, 0, 0 }
376 };
377
378 static struct dri2_extension_match swrast_driver_extensions[] = {
379 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
380 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
381 { NULL, 0, 0 }
382 };
383
384 static struct dri2_extension_match swrast_core_extensions[] = {
385 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
386 { NULL, 0, 0 }
387 };
388
389 static EGLBoolean
390 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
391 struct dri2_extension_match *matches,
392 const __DRIextension **extensions)
393 {
394 int i, j, ret = EGL_TRUE;
395 void *field;
396
397 for (i = 0; extensions[i]; i++) {
398 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
399 for (j = 0; matches[j].name; j++) {
400 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
401 extensions[i]->version >= matches[j].version) {
402 field = ((char *) dri2_dpy + matches[j].offset);
403 *(const __DRIextension **) field = extensions[i];
404 _eglLog(_EGL_INFO, "found extension %s version %d",
405 extensions[i]->name, extensions[i]->version);
406 }
407 }
408 }
409
410 for (j = 0; matches[j].name; j++) {
411 field = ((char *) dri2_dpy + matches[j].offset);
412 if (*(const __DRIextension **) field == NULL) {
413 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
414 matches[j].name, matches[j].version);
415 ret = EGL_FALSE;
416 }
417 }
418
419 return ret;
420 }
421
422 static const __DRIextension **
423 dri2_open_driver(_EGLDisplay *disp)
424 {
425 struct dri2_egl_display *dri2_dpy = disp->DriverData;
426 const __DRIextension **extensions = NULL;
427 char path[PATH_MAX], *search_paths, *p, *next, *end;
428 char *get_extensions_name;
429 const __DRIextension **(*get_extensions)(void);
430
431 search_paths = NULL;
432 if (geteuid() == getuid()) {
433 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
434 search_paths = getenv("LIBGL_DRIVERS_PATH");
435 }
436 if (search_paths == NULL)
437 search_paths = DEFAULT_DRIVER_DIR;
438
439 dri2_dpy->driver = NULL;
440 end = search_paths + strlen(search_paths);
441 for (p = search_paths; p < end; p = next + 1) {
442 int len;
443 next = strchr(p, ':');
444 if (next == NULL)
445 next = end;
446
447 len = next - p;
448 #if GLX_USE_TLS
449 snprintf(path, sizeof path,
450 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
451 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
452 #endif
453 if (dri2_dpy->driver == NULL) {
454 snprintf(path, sizeof path,
455 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
456 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
457 if (dri2_dpy->driver == NULL)
458 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
459 }
460 /* not need continue to loop all paths once the driver is found */
461 if (dri2_dpy->driver != NULL)
462 break;
463
464 #ifdef ANDROID
465 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
466 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
467 if (dri2_dpy->driver == NULL)
468 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
469 else
470 break;
471 #endif
472 }
473
474 if (dri2_dpy->driver == NULL) {
475 _eglLog(_EGL_WARNING,
476 "DRI2: failed to open %s (search paths %s)",
477 dri2_dpy->driver_name, search_paths);
478 return NULL;
479 }
480
481 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
482
483 if (asprintf(&get_extensions_name, "%s_%s",
484 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
485 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
486 if (get_extensions) {
487 extensions = get_extensions();
488 } else {
489 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
490 get_extensions_name, dlerror());
491 }
492 free(get_extensions_name);
493 }
494
495 if (!extensions)
496 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
497 if (extensions == NULL) {
498 _eglLog(_EGL_WARNING,
499 "DRI2: driver exports no extensions (%s)", dlerror());
500 dlclose(dri2_dpy->driver);
501 }
502
503 return extensions;
504 }
505
506 EGLBoolean
507 dri2_load_driver_dri3(_EGLDisplay *disp)
508 {
509 struct dri2_egl_display *dri2_dpy = disp->DriverData;
510 const __DRIextension **extensions;
511
512 extensions = dri2_open_driver(disp);
513 if (!extensions)
514 return EGL_FALSE;
515
516 if (!dri2_bind_extensions(dri2_dpy, dri3_driver_extensions, extensions)) {
517 dlclose(dri2_dpy->driver);
518 return EGL_FALSE;
519 }
520 dri2_dpy->driver_extensions = extensions;
521
522 return EGL_TRUE;
523 }
524
525 EGLBoolean
526 dri2_load_driver(_EGLDisplay *disp)
527 {
528 struct dri2_egl_display *dri2_dpy = disp->DriverData;
529 const __DRIextension **extensions;
530
531 extensions = dri2_open_driver(disp);
532 if (!extensions)
533 return EGL_FALSE;
534
535 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
536 dlclose(dri2_dpy->driver);
537 return EGL_FALSE;
538 }
539 dri2_dpy->driver_extensions = extensions;
540
541 return EGL_TRUE;
542 }
543
544 EGLBoolean
545 dri2_load_driver_swrast(_EGLDisplay *disp)
546 {
547 struct dri2_egl_display *dri2_dpy = disp->DriverData;
548 const __DRIextension **extensions;
549
550 extensions = dri2_open_driver(disp);
551 if (!extensions)
552 return EGL_FALSE;
553
554 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
555 dlclose(dri2_dpy->driver);
556 return EGL_FALSE;
557 }
558 dri2_dpy->driver_extensions = extensions;
559
560 return EGL_TRUE;
561 }
562
563 static unsigned
564 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
565 {
566 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
567 unsigned int value = 0;
568
569 if (!rendererQuery ||
570 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
571 return 0;
572
573 return value;
574 }
575
576 void
577 dri2_setup_screen(_EGLDisplay *disp)
578 {
579 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
580 unsigned int api_mask;
581
582 if (dri2_dpy->image_driver) {
583 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
584 } else if (dri2_dpy->dri2) {
585 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
586 } else {
587 assert(dri2_dpy->swrast);
588 api_mask = 1 << __DRI_API_OPENGL |
589 1 << __DRI_API_GLES |
590 1 << __DRI_API_GLES2 |
591 1 << __DRI_API_GLES3;
592 }
593
594 disp->ClientAPIs = 0;
595 if (api_mask & (1 <<__DRI_API_OPENGL))
596 disp->ClientAPIs |= EGL_OPENGL_BIT;
597 if (api_mask & (1 <<__DRI_API_GLES))
598 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
599 if (api_mask & (1 << __DRI_API_GLES2))
600 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
601 if (api_mask & (1 << __DRI_API_GLES3))
602 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
603
604 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
605 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
606 disp->Extensions.MESA_configless_context = EGL_TRUE;
607
608 if (dri2_renderer_query_integer(dri2_dpy,
609 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
610 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
611
612 if (dri2_dpy->image_driver ||
613 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
614 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
615 disp->Extensions.KHR_create_context = EGL_TRUE;
616
617 if (dri2_dpy->robustness)
618 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
619 }
620
621 if (dri2_dpy->fence) {
622 disp->Extensions.KHR_fence_sync = EGL_TRUE;
623 disp->Extensions.KHR_wait_sync = EGL_TRUE;
624 if (dri2_dpy->fence->get_fence_from_cl_event)
625 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
626 }
627
628 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
629
630 if (dri2_dpy->image) {
631 if (dri2_dpy->image->base.version >= 10 &&
632 dri2_dpy->image->getCapabilities != NULL) {
633 int capabilities;
634
635 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
636 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
637
638 if (dri2_dpy->image->base.version >= 11)
639 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
640 } else {
641 disp->Extensions.MESA_drm_image = EGL_TRUE;
642 if (dri2_dpy->image->base.version >= 11)
643 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
644 }
645
646 disp->Extensions.KHR_image_base = EGL_TRUE;
647 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
648 if (dri2_dpy->image->base.version >= 5 &&
649 dri2_dpy->image->createImageFromTexture) {
650 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
651 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
652 }
653 if (dri2_renderer_query_integer(dri2_dpy,
654 __DRI2_RENDERER_HAS_TEXTURE_3D))
655 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
656 #ifdef HAVE_LIBDRM
657 if (dri2_dpy->image->base.version >= 8 &&
658 dri2_dpy->image->createImageFromDmaBufs) {
659 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
660 }
661 #endif
662 }
663 }
664
665 /* All platforms but DRM call this function to create the screen, query the
666 * dri extensions, setup the vtables and populate the driver_configs.
667 * DRM inherits all that information from its display - GBM.
668 */
669 EGLBoolean
670 dri2_create_screen(_EGLDisplay *disp)
671 {
672 const __DRIextension **extensions;
673 struct dri2_egl_display *dri2_dpy;
674 unsigned i;
675
676 dri2_dpy = disp->DriverData;
677
678 if (dri2_dpy->image_driver) {
679 dri2_dpy->dri_screen =
680 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
681 dri2_dpy->extensions,
682 dri2_dpy->driver_extensions,
683 &dri2_dpy->driver_configs,
684 disp);
685 } else if (dri2_dpy->dri2) {
686 if (dri2_dpy->dri2->base.version >= 4) {
687 dri2_dpy->dri_screen =
688 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
689 dri2_dpy->extensions,
690 dri2_dpy->driver_extensions,
691 &dri2_dpy->driver_configs, disp);
692 } else {
693 dri2_dpy->dri_screen =
694 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
695 dri2_dpy->extensions,
696 &dri2_dpy->driver_configs, disp);
697 }
698 } else {
699 assert(dri2_dpy->swrast);
700 if (dri2_dpy->swrast->base.version >= 4) {
701 dri2_dpy->dri_screen =
702 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
703 dri2_dpy->driver_extensions,
704 &dri2_dpy->driver_configs, disp);
705 } else {
706 dri2_dpy->dri_screen =
707 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
708 &dri2_dpy->driver_configs, disp);
709 }
710 }
711
712 if (dri2_dpy->dri_screen == NULL) {
713 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
714 return EGL_FALSE;
715 }
716
717 dri2_dpy->own_dri_screen = 1;
718
719 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
720
721 if (dri2_dpy->image_driver || dri2_dpy->dri2) {
722 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
723 goto cleanup_dri_screen;
724 } else {
725 assert(dri2_dpy->swrast);
726 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
727 goto cleanup_dri_screen;
728 }
729
730 for (i = 0; extensions[i]; i++) {
731 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
732 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
733 }
734 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
735 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
736 }
737 if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
738 dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
739 }
740 if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
741 dri2_dpy->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
742 }
743 }
744
745 dri2_setup_screen(disp);
746
747 return EGL_TRUE;
748
749 cleanup_dri_screen:
750 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
751
752 return EGL_FALSE;
753 }
754
755 /**
756 * Called via eglInitialize(), GLX_drv->API.Initialize().
757 */
758 static EGLBoolean
759 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
760 {
761 /* not until swrast_dri is supported */
762 if (disp->Options.UseFallback)
763 return EGL_FALSE;
764
765 switch (disp->Platform) {
766 #ifdef HAVE_SURFACELESS_PLATFORM
767 case _EGL_PLATFORM_SURFACELESS:
768 if (disp->Options.TestOnly)
769 return EGL_TRUE;
770 return dri2_initialize_surfaceless(drv, disp);
771 #endif
772
773 #ifdef HAVE_X11_PLATFORM
774 case _EGL_PLATFORM_X11:
775 if (disp->Options.TestOnly)
776 return EGL_TRUE;
777 return dri2_initialize_x11(drv, disp);
778 #endif
779
780 #ifdef HAVE_DRM_PLATFORM
781 case _EGL_PLATFORM_DRM:
782 if (disp->Options.TestOnly)
783 return EGL_TRUE;
784 return dri2_initialize_drm(drv, disp);
785 #endif
786 #ifdef HAVE_WAYLAND_PLATFORM
787 case _EGL_PLATFORM_WAYLAND:
788 if (disp->Options.TestOnly)
789 return EGL_TRUE;
790 return dri2_initialize_wayland(drv, disp);
791 #endif
792 #ifdef HAVE_ANDROID_PLATFORM
793 case _EGL_PLATFORM_ANDROID:
794 if (disp->Options.TestOnly)
795 return EGL_TRUE;
796 return dri2_initialize_android(drv, disp);
797 #endif
798
799 default:
800 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
801 return EGL_FALSE;
802 }
803 }
804
805 /**
806 * Called via eglTerminate(), drv->API.Terminate().
807 */
808 static EGLBoolean
809 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
810 {
811 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
812 unsigned i;
813
814 _eglReleaseDisplayResources(drv, disp);
815 _eglCleanupDisplay(disp);
816
817 if (dri2_dpy->own_dri_screen)
818 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
819 if (dri2_dpy->fd >= 0)
820 close(dri2_dpy->fd);
821 if (dri2_dpy->driver)
822 dlclose(dri2_dpy->driver);
823 free(dri2_dpy->device_name);
824 free(dri2_dpy->driver_name);
825
826 switch (disp->Platform) {
827 #ifdef HAVE_X11_PLATFORM
828 case _EGL_PLATFORM_X11:
829 if (dri2_dpy->own_device) {
830 xcb_disconnect(dri2_dpy->conn);
831 }
832 break;
833 #endif
834 #ifdef HAVE_DRM_PLATFORM
835 case _EGL_PLATFORM_DRM:
836 if (dri2_dpy->own_device) {
837 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
838 }
839 break;
840 #endif
841 #ifdef HAVE_WAYLAND_PLATFORM
842 case _EGL_PLATFORM_WAYLAND:
843 if (dri2_dpy->wl_drm)
844 wl_drm_destroy(dri2_dpy->wl_drm);
845 if (dri2_dpy->wl_shm)
846 wl_shm_destroy(dri2_dpy->wl_shm);
847 wl_registry_destroy(dri2_dpy->wl_registry);
848 wl_event_queue_destroy(dri2_dpy->wl_queue);
849 if (dri2_dpy->own_device) {
850 wl_display_disconnect(dri2_dpy->wl_dpy);
851 }
852 break;
853 #endif
854 default:
855 break;
856 }
857
858 /* The drm platform does not create the screen/driver_configs but reuses
859 * the ones from the gbm device. As such the gbm itself is responsible
860 * for the cleanup.
861 */
862 if (disp->Platform != _EGL_PLATFORM_DRM) {
863 for (i = 0; dri2_dpy->driver_configs[i]; i++)
864 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
865 free(dri2_dpy->driver_configs);
866 }
867 free(dri2_dpy);
868 disp->DriverData = NULL;
869
870 return EGL_TRUE;
871 }
872
873 /**
874 * Set the error code after a call to
875 * dri2_egl_display::dri2::createContextAttribs.
876 */
877 static void
878 dri2_create_context_attribs_error(int dri_error)
879 {
880 EGLint egl_error;
881
882 switch (dri_error) {
883 case __DRI_CTX_ERROR_SUCCESS:
884 return;
885
886 case __DRI_CTX_ERROR_NO_MEMORY:
887 egl_error = EGL_BAD_ALLOC;
888 break;
889
890 /* From the EGL_KHR_create_context spec, section "Errors":
891 *
892 * * If <config> does not support a client API context compatible
893 * with the requested API major and minor version, [...] context flags,
894 * and context reset notification behavior (for client API types where
895 * these attributes are supported), then an EGL_BAD_MATCH error is
896 * generated.
897 *
898 * * If an OpenGL ES context is requested and the values for
899 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
900 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
901 * is not defined, than an EGL_BAD_MATCH error is generated.
902 *
903 * * If an OpenGL context is requested, the requested version is
904 * greater than 3.2, and the value for attribute
905 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
906 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
907 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
908 * one of these bits set; or if the implementation does not support
909 * the requested profile, then an EGL_BAD_MATCH error is generated.
910 */
911 case __DRI_CTX_ERROR_BAD_API:
912 case __DRI_CTX_ERROR_BAD_VERSION:
913 case __DRI_CTX_ERROR_BAD_FLAG:
914 egl_error = EGL_BAD_MATCH;
915 break;
916
917 /* From the EGL_KHR_create_context spec, section "Errors":
918 *
919 * * If an attribute name or attribute value in <attrib_list> is not
920 * recognized (including unrecognized bits in bitmask attributes),
921 * then an EGL_BAD_ATTRIBUTE error is generated."
922 */
923 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
924 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
925 egl_error = EGL_BAD_ATTRIBUTE;
926 break;
927
928 default:
929 assert(0);
930 egl_error = EGL_BAD_MATCH;
931 break;
932 }
933
934 _eglError(egl_error, "dri2_create_context");
935 }
936
937 static bool
938 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
939 struct dri2_egl_display *dri2_dpy,
940 uint32_t *ctx_attribs,
941 unsigned *num_attribs)
942 {
943 int pos = 0;
944
945 assert(*num_attribs >= 8);
946
947 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
948 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
949 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
950 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
951
952 if (dri2_ctx->base.Flags != 0) {
953 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
954 * extension, don't even try to send it the robust-access flag.
955 * It may explode. Instead, generate the required EGL error here.
956 */
957 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
958 && !dri2_dpy->robustness) {
959 _eglError(EGL_BAD_MATCH, "eglCreateContext");
960 return false;
961 }
962
963 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
964 ctx_attribs[pos++] = dri2_ctx->base.Flags;
965 }
966
967 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
968 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
969 * extension, don't even try to send it a reset strategy. It may
970 * explode. Instead, generate the required EGL error here.
971 */
972 if (!dri2_dpy->robustness) {
973 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
974 return false;
975 }
976
977 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
978 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
979 }
980
981 *num_attribs = pos;
982
983 return true;
984 }
985
986 /**
987 * Called via eglCreateContext(), drv->API.CreateContext().
988 */
989 static _EGLContext *
990 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
991 _EGLContext *share_list, const EGLint *attrib_list)
992 {
993 struct dri2_egl_context *dri2_ctx;
994 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
995 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
996 __DRIcontext *shared =
997 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
998 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
999 const __DRIconfig *dri_config;
1000 int api;
1001
1002 (void) drv;
1003
1004 dri2_ctx = malloc(sizeof *dri2_ctx);
1005 if (!dri2_ctx) {
1006 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1007 return NULL;
1008 }
1009
1010 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1011 goto cleanup;
1012
1013 switch (dri2_ctx->base.ClientAPI) {
1014 case EGL_OPENGL_ES_API:
1015 switch (dri2_ctx->base.ClientMajorVersion) {
1016 case 1:
1017 api = __DRI_API_GLES;
1018 break;
1019 case 2:
1020 api = __DRI_API_GLES2;
1021 break;
1022 case 3:
1023 api = __DRI_API_GLES3;
1024 break;
1025 default:
1026 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1027 free(dri2_ctx);
1028 return NULL;
1029 }
1030 break;
1031 case EGL_OPENGL_API:
1032 if ((dri2_ctx->base.ClientMajorVersion >= 4
1033 || (dri2_ctx->base.ClientMajorVersion == 3
1034 && dri2_ctx->base.ClientMinorVersion >= 2))
1035 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1036 api = __DRI_API_OPENGL_CORE;
1037 else
1038 api = __DRI_API_OPENGL;
1039 break;
1040 default:
1041 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1042 free(dri2_ctx);
1043 return NULL;
1044 }
1045
1046 if (conf != NULL) {
1047 /* The config chosen here isn't necessarily
1048 * used for surfaces later.
1049 * A pixmap surface will use the single config.
1050 * This opportunity depends on disabling the
1051 * doubleBufferMode check in
1052 * src/mesa/main/context.c:check_compatible()
1053 */
1054 if (dri2_config->dri_double_config[0])
1055 dri_config = dri2_config->dri_double_config[0];
1056 else
1057 dri_config = dri2_config->dri_single_config[0];
1058
1059 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1060 * makes sure the back buffer will always be used.
1061 */
1062 if (conf->SurfaceType & EGL_WINDOW_BIT)
1063 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1064 }
1065 else
1066 dri_config = NULL;
1067
1068 if (dri2_dpy->image_driver) {
1069 unsigned error;
1070 unsigned num_attribs = 8;
1071 uint32_t ctx_attribs[8];
1072
1073 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1074 &num_attribs))
1075 goto cleanup;
1076
1077 dri2_ctx->dri_context =
1078 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1079 api,
1080 dri_config,
1081 shared,
1082 num_attribs / 2,
1083 ctx_attribs,
1084 & error,
1085 dri2_ctx);
1086 dri2_create_context_attribs_error(error);
1087 } else if (dri2_dpy->dri2) {
1088 if (dri2_dpy->dri2->base.version >= 3) {
1089 unsigned error;
1090 unsigned num_attribs = 8;
1091 uint32_t ctx_attribs[8];
1092
1093 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1094 &num_attribs))
1095 goto cleanup;
1096
1097 dri2_ctx->dri_context =
1098 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1099 api,
1100 dri_config,
1101 shared,
1102 num_attribs / 2,
1103 ctx_attribs,
1104 & error,
1105 dri2_ctx);
1106 dri2_create_context_attribs_error(error);
1107 } else {
1108 dri2_ctx->dri_context =
1109 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1110 api,
1111 dri_config,
1112 shared,
1113 dri2_ctx);
1114 }
1115 } else {
1116 assert(dri2_dpy->swrast);
1117 if (dri2_dpy->swrast->base.version >= 3) {
1118 unsigned error;
1119 unsigned num_attribs = 8;
1120 uint32_t ctx_attribs[8];
1121
1122 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1123 &num_attribs))
1124 goto cleanup;
1125
1126 dri2_ctx->dri_context =
1127 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1128 api,
1129 dri_config,
1130 shared,
1131 num_attribs / 2,
1132 ctx_attribs,
1133 & error,
1134 dri2_ctx);
1135 dri2_create_context_attribs_error(error);
1136 } else {
1137 dri2_ctx->dri_context =
1138 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1139 api,
1140 dri_config,
1141 shared,
1142 dri2_ctx);
1143 }
1144 }
1145
1146 if (!dri2_ctx->dri_context)
1147 goto cleanup;
1148
1149 return &dri2_ctx->base;
1150
1151 cleanup:
1152 free(dri2_ctx);
1153 return NULL;
1154 }
1155
1156 /**
1157 * Called via eglDestroyContext(), drv->API.DestroyContext().
1158 */
1159 static EGLBoolean
1160 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1161 {
1162 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1163 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1164
1165 if (_eglPutContext(ctx)) {
1166 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1167 free(dri2_ctx);
1168 }
1169
1170 return EGL_TRUE;
1171 }
1172
1173 /**
1174 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1175 */
1176 static EGLBoolean
1177 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1178 _EGLSurface *rsurf, _EGLContext *ctx)
1179 {
1180 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1181 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1182 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1183 _EGLContext *old_ctx;
1184 _EGLSurface *old_dsurf, *old_rsurf;
1185 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1186 __DRIdrawable *ddraw, *rdraw;
1187 __DRIcontext *cctx;
1188
1189 /* make new bindings */
1190 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1191 return EGL_FALSE;
1192
1193 /* flush before context switch */
1194 if (old_ctx && dri2_drv->glFlush)
1195 dri2_drv->glFlush();
1196
1197 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1198 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1199 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1200
1201 if (old_ctx) {
1202 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1203 dri2_dpy->core->unbindContext(old_cctx);
1204 }
1205
1206 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
1207 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1208 if (old_dsurf)
1209 drv->API.DestroySurface(drv, disp, old_dsurf);
1210 if (old_rsurf)
1211 drv->API.DestroySurface(drv, disp, old_rsurf);
1212 if (old_ctx)
1213 drv->API.DestroyContext(drv, disp, old_ctx);
1214
1215 return EGL_TRUE;
1216 } else {
1217 /* undo the previous _eglBindContext */
1218 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1219 assert(&dri2_ctx->base == ctx &&
1220 tmp_dsurf == dsurf &&
1221 tmp_rsurf == rsurf);
1222
1223 _eglPutSurface(dsurf);
1224 _eglPutSurface(rsurf);
1225 _eglPutContext(ctx);
1226
1227 _eglPutSurface(old_dsurf);
1228 _eglPutSurface(old_rsurf);
1229 _eglPutContext(old_ctx);
1230
1231 return EGL_FALSE;
1232 }
1233 }
1234
1235 __DRIdrawable *
1236 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1237 {
1238 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1239
1240 return dri2_surf->dri_drawable;
1241 }
1242
1243 /*
1244 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1245 */
1246 static _EGLProc
1247 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1248 {
1249 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1250
1251 return dri2_drv->get_proc_address(procname);
1252 }
1253
1254 static _EGLSurface*
1255 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1256 _EGLConfig *conf, void *native_window,
1257 const EGLint *attrib_list)
1258 {
1259 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1260 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1261 attrib_list);
1262 }
1263
1264 static _EGLSurface*
1265 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1266 _EGLConfig *conf, void *native_pixmap,
1267 const EGLint *attrib_list)
1268 {
1269 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1270 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1271 attrib_list);
1272 }
1273
1274 static _EGLSurface*
1275 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1276 _EGLConfig *conf, const EGLint *attrib_list)
1277 {
1278 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1279 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1280 }
1281
1282 static EGLBoolean
1283 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1284 {
1285 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1286 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1287 }
1288
1289 static EGLBoolean
1290 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1291 EGLint interval)
1292 {
1293 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1294 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1295 }
1296
1297 /**
1298 * Asks the client API to flush any rendering to the drawable so that we can
1299 * do our swapbuffers.
1300 */
1301 void
1302 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1303 {
1304 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1305 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1306
1307 if (dri2_dpy->flush) {
1308 if (dri2_dpy->flush->base.version >= 4) {
1309 /* We know there's a current context because:
1310 *
1311 * "If surface is not bound to the calling thread’s current
1312 * context, an EGL_BAD_SURFACE error is generated."
1313 */
1314 _EGLContext *ctx = _eglGetCurrentContext();
1315 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1316
1317 /* From the EGL 1.4 spec (page 52):
1318 *
1319 * "The contents of ancillary buffers are always undefined
1320 * after calling eglSwapBuffers."
1321 */
1322 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1323 dri_drawable,
1324 __DRI2_FLUSH_DRAWABLE |
1325 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1326 __DRI2_THROTTLE_SWAPBUFFER);
1327 } else {
1328 dri2_dpy->flush->flush(dri_drawable);
1329 }
1330 }
1331 }
1332
1333 static EGLBoolean
1334 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1335 {
1336 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1337 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1338 }
1339
1340 static EGLBoolean
1341 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1342 _EGLSurface *surf,
1343 const EGLint *rects, EGLint n_rects)
1344 {
1345 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1346 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1347 rects, n_rects);
1348 }
1349
1350 static EGLBoolean
1351 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1352 EGLint numRects, const EGLint *rects)
1353 {
1354 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1355 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1356 }
1357
1358 static EGLBoolean
1359 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1360 EGLint x, EGLint y, EGLint width, EGLint height)
1361 {
1362 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1363 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1364 }
1365
1366 static EGLBoolean
1367 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1368 void *native_pixmap_target)
1369 {
1370 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1371 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1372 }
1373
1374 static EGLint
1375 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1376 {
1377 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1378 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1379 }
1380
1381 static EGLBoolean
1382 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1383 {
1384 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1385 _EGLSurface *surf = ctx->DrawSurface;
1386 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1387
1388 (void) drv;
1389
1390 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1391 * we need to copy fake to real here.*/
1392
1393 if (dri2_dpy->flush != NULL)
1394 dri2_dpy->flush->flush(dri_drawable);
1395
1396 return EGL_TRUE;
1397 }
1398
1399 static EGLBoolean
1400 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1401 {
1402 (void) drv;
1403 (void) disp;
1404
1405 if (engine != EGL_CORE_NATIVE_ENGINE)
1406 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1407 /* glXWaitX(); */
1408
1409 return EGL_TRUE;
1410 }
1411
1412 static EGLBoolean
1413 dri2_bind_tex_image(_EGLDriver *drv,
1414 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1415 {
1416 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1417 struct dri2_egl_context *dri2_ctx;
1418 _EGLContext *ctx;
1419 GLint format, target;
1420 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1421
1422 ctx = _eglGetCurrentContext();
1423 dri2_ctx = dri2_egl_context(ctx);
1424
1425 if (!_eglBindTexImage(drv, disp, surf, buffer))
1426 return EGL_FALSE;
1427
1428 switch (surf->TextureFormat) {
1429 case EGL_TEXTURE_RGB:
1430 format = __DRI_TEXTURE_FORMAT_RGB;
1431 break;
1432 case EGL_TEXTURE_RGBA:
1433 format = __DRI_TEXTURE_FORMAT_RGBA;
1434 break;
1435 default:
1436 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1437 format = __DRI_TEXTURE_FORMAT_RGBA;
1438 }
1439
1440 switch (surf->TextureTarget) {
1441 case EGL_TEXTURE_2D:
1442 target = GL_TEXTURE_2D;
1443 break;
1444 default:
1445 target = GL_TEXTURE_2D;
1446 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1447 }
1448
1449 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1450 target, format,
1451 dri_drawable);
1452
1453 return EGL_TRUE;
1454 }
1455
1456 static EGLBoolean
1457 dri2_release_tex_image(_EGLDriver *drv,
1458 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1459 {
1460 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1461 struct dri2_egl_context *dri2_ctx;
1462 _EGLContext *ctx;
1463 GLint target;
1464 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1465
1466 ctx = _eglGetCurrentContext();
1467 dri2_ctx = dri2_egl_context(ctx);
1468
1469 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1470 return EGL_FALSE;
1471
1472 switch (surf->TextureTarget) {
1473 case EGL_TEXTURE_2D:
1474 target = GL_TEXTURE_2D;
1475 break;
1476 default:
1477 assert(0);
1478 }
1479
1480 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1481 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1482 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1483 target,
1484 dri_drawable);
1485 }
1486
1487 return EGL_TRUE;
1488 }
1489
1490 static _EGLImage*
1491 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1492 EGLenum target, EGLClientBuffer buffer,
1493 const EGLint *attr_list)
1494 {
1495 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1496 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1497 attr_list);
1498 }
1499
1500 static _EGLImage *
1501 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1502 {
1503 struct dri2_egl_image *dri2_img;
1504
1505 if (dri_image == NULL) {
1506 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1507 return NULL;
1508 }
1509
1510 dri2_img = malloc(sizeof *dri2_img);
1511 if (!dri2_img) {
1512 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1513 return NULL;
1514 }
1515
1516 if (!_eglInitImage(&dri2_img->base, disp)) {
1517 free(dri2_img);
1518 return NULL;
1519 }
1520
1521 dri2_img->dri_image = dri_image;
1522
1523 return &dri2_img->base;
1524 }
1525
1526 static _EGLImage *
1527 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1528 EGLClientBuffer buffer,
1529 const EGLint *attr_list)
1530 {
1531 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1532 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1533 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1534 __DRIimage *dri_image;
1535
1536 if (renderbuffer == 0) {
1537 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1538 return EGL_NO_IMAGE_KHR;
1539 }
1540
1541 dri_image =
1542 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1543 renderbuffer, NULL);
1544
1545 return dri2_create_image_from_dri(disp, dri_image);
1546 }
1547
1548 #ifdef HAVE_WAYLAND_PLATFORM
1549
1550 /* This structure describes how a wl_buffer maps to one or more
1551 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1552 * offsets and strides of the planes in the buffer. This table maps a
1553 * wl_drm format code to a description of the planes in the buffer
1554 * that lets us create a __DRIimage for each of the planes. */
1555
1556 static const struct wl_drm_components_descriptor {
1557 uint32_t dri_components;
1558 EGLint components;
1559 int nplanes;
1560 } wl_drm_components[] = {
1561 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1562 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1563 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1564 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1565 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1566 };
1567
1568 static _EGLImage *
1569 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1570 EGLClientBuffer _buffer,
1571 const EGLint *attr_list)
1572 {
1573 struct wl_drm_buffer *buffer;
1574 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1575 const struct wl_drm_components_descriptor *f;
1576 __DRIimage *dri_image;
1577 _EGLImageAttribs attrs;
1578 EGLint err;
1579 int32_t plane;
1580
1581 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1582 (struct wl_resource *) _buffer);
1583 if (!buffer)
1584 return NULL;
1585
1586 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1587 plane = attrs.PlaneWL;
1588 if (err != EGL_SUCCESS) {
1589 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1590 return NULL;
1591 }
1592
1593 f = buffer->driver_format;
1594 if (plane < 0 || plane >= f->nplanes) {
1595 _eglError(EGL_BAD_PARAMETER,
1596 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1597 return NULL;
1598 }
1599
1600 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1601
1602 if (dri_image == NULL) {
1603 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1604 return NULL;
1605 }
1606
1607 return dri2_create_image_from_dri(disp, dri_image);
1608 }
1609 #endif
1610
1611 static EGLBoolean
1612 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1613 EGLuint64KHR *ust, EGLuint64KHR *msc,
1614 EGLuint64KHR *sbc)
1615 {
1616 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1617 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1618 }
1619
1620 /**
1621 * Set the error code after a call to
1622 * dri2_egl_image::dri_image::createImageFromTexture.
1623 */
1624 static void
1625 dri2_create_image_khr_texture_error(int dri_error)
1626 {
1627 EGLint egl_error;
1628
1629 switch (dri_error) {
1630 case __DRI_IMAGE_ERROR_SUCCESS:
1631 return;
1632
1633 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1634 egl_error = EGL_BAD_ALLOC;
1635 break;
1636
1637 case __DRI_IMAGE_ERROR_BAD_MATCH:
1638 egl_error = EGL_BAD_MATCH;
1639 break;
1640
1641 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1642 egl_error = EGL_BAD_PARAMETER;
1643 break;
1644
1645 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1646 egl_error = EGL_BAD_ACCESS;
1647 break;
1648
1649 default:
1650 assert(0);
1651 egl_error = EGL_BAD_MATCH;
1652 break;
1653 }
1654
1655 _eglError(egl_error, "dri2_create_image_khr_texture");
1656 }
1657
1658 static _EGLImage *
1659 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1660 EGLenum target,
1661 EGLClientBuffer buffer,
1662 const EGLint *attr_list)
1663 {
1664 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1665 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1666 struct dri2_egl_image *dri2_img;
1667 GLuint texture = (GLuint) (uintptr_t) buffer;
1668 _EGLImageAttribs attrs;
1669 GLuint depth;
1670 GLenum gl_target;
1671 unsigned error;
1672
1673 if (texture == 0) {
1674 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1675 return EGL_NO_IMAGE_KHR;
1676 }
1677
1678 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1679 return EGL_NO_IMAGE_KHR;
1680
1681 switch (target) {
1682 case EGL_GL_TEXTURE_2D_KHR:
1683 depth = 0;
1684 gl_target = GL_TEXTURE_2D;
1685 break;
1686 case EGL_GL_TEXTURE_3D_KHR:
1687 if (disp->Extensions.KHR_gl_texture_3D_image) {
1688 depth = attrs.GLTextureZOffset;
1689 gl_target = GL_TEXTURE_3D;
1690 break;
1691 }
1692 else {
1693 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1694 return EGL_NO_IMAGE_KHR;
1695 }
1696 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1697 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1698 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1699 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1700 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1701 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1702 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1703 gl_target = GL_TEXTURE_CUBE_MAP;
1704 break;
1705 default:
1706 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1707 return EGL_NO_IMAGE_KHR;
1708 }
1709
1710 dri2_img = malloc(sizeof *dri2_img);
1711 if (!dri2_img) {
1712 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1713 return EGL_NO_IMAGE_KHR;
1714 }
1715
1716 if (!_eglInitImage(&dri2_img->base, disp)) {
1717 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1718 free(dri2_img);
1719 return EGL_NO_IMAGE_KHR;
1720 }
1721
1722 dri2_img->dri_image =
1723 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1724 gl_target,
1725 texture,
1726 depth,
1727 attrs.GLTextureLevel,
1728 &error,
1729 dri2_img);
1730 dri2_create_image_khr_texture_error(error);
1731
1732 if (!dri2_img->dri_image) {
1733 free(dri2_img);
1734 return EGL_NO_IMAGE_KHR;
1735 }
1736 return &dri2_img->base;
1737 }
1738
1739 static struct wl_buffer*
1740 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1741 _EGLImage *img)
1742 {
1743 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1744 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1745 }
1746
1747 #ifdef HAVE_LIBDRM
1748 static _EGLImage *
1749 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1750 EGLClientBuffer buffer, const EGLint *attr_list)
1751 {
1752 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1753 EGLint format, name, pitch, err;
1754 _EGLImageAttribs attrs;
1755 __DRIimage *dri_image;
1756
1757 name = (EGLint) (uintptr_t) buffer;
1758
1759 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1760 if (err != EGL_SUCCESS)
1761 return NULL;
1762
1763 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1764 attrs.DRMBufferStrideMESA <= 0) {
1765 _eglError(EGL_BAD_PARAMETER,
1766 "bad width, height or stride");
1767 return NULL;
1768 }
1769
1770 switch (attrs.DRMBufferFormatMESA) {
1771 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1772 format = __DRI_IMAGE_FORMAT_ARGB8888;
1773 pitch = attrs.DRMBufferStrideMESA;
1774 break;
1775 default:
1776 _eglError(EGL_BAD_PARAMETER,
1777 "dri2_create_image_khr: unsupported pixmap depth");
1778 return NULL;
1779 }
1780
1781 dri_image =
1782 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1783 attrs.Width,
1784 attrs.Height,
1785 format,
1786 name,
1787 pitch,
1788 NULL);
1789
1790 return dri2_create_image_from_dri(disp, dri_image);
1791 }
1792
1793 static EGLBoolean
1794 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1795 {
1796 unsigned i;
1797
1798 /**
1799 * The spec says:
1800 *
1801 * "Required attributes and their values are as follows:
1802 *
1803 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1804 *
1805 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1806 * by drm_fourcc.h and used as the pixel_format parameter of the
1807 * drm_mode_fb_cmd2 ioctl."
1808 *
1809 * and
1810 *
1811 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1812 * incomplete, EGL_BAD_PARAMETER is generated."
1813 */
1814 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1815 !attrs->DMABufFourCC.IsPresent) {
1816 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1817 return EGL_FALSE;
1818 }
1819
1820 /**
1821 * Also:
1822 *
1823 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1824 * specified for a plane's pitch or offset isn't supported by EGL,
1825 * EGL_BAD_ACCESS is generated."
1826 */
1827 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1828 if (attrs->DMABufPlanePitches[i].IsPresent &&
1829 attrs->DMABufPlanePitches[i].Value <= 0) {
1830 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1831 return EGL_FALSE;
1832 }
1833 }
1834
1835 return EGL_TRUE;
1836 }
1837
1838 /* Returns the total number of file descriptors. Zero indicates an error. */
1839 static unsigned
1840 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1841 {
1842 unsigned i, plane_n;
1843
1844 switch (attrs->DMABufFourCC.Value) {
1845 case DRM_FORMAT_R8:
1846 case DRM_FORMAT_RG88:
1847 case DRM_FORMAT_GR88:
1848 case DRM_FORMAT_RGB332:
1849 case DRM_FORMAT_BGR233:
1850 case DRM_FORMAT_XRGB4444:
1851 case DRM_FORMAT_XBGR4444:
1852 case DRM_FORMAT_RGBX4444:
1853 case DRM_FORMAT_BGRX4444:
1854 case DRM_FORMAT_ARGB4444:
1855 case DRM_FORMAT_ABGR4444:
1856 case DRM_FORMAT_RGBA4444:
1857 case DRM_FORMAT_BGRA4444:
1858 case DRM_FORMAT_XRGB1555:
1859 case DRM_FORMAT_XBGR1555:
1860 case DRM_FORMAT_RGBX5551:
1861 case DRM_FORMAT_BGRX5551:
1862 case DRM_FORMAT_ARGB1555:
1863 case DRM_FORMAT_ABGR1555:
1864 case DRM_FORMAT_RGBA5551:
1865 case DRM_FORMAT_BGRA5551:
1866 case DRM_FORMAT_RGB565:
1867 case DRM_FORMAT_BGR565:
1868 case DRM_FORMAT_RGB888:
1869 case DRM_FORMAT_BGR888:
1870 case DRM_FORMAT_XRGB8888:
1871 case DRM_FORMAT_XBGR8888:
1872 case DRM_FORMAT_RGBX8888:
1873 case DRM_FORMAT_BGRX8888:
1874 case DRM_FORMAT_ARGB8888:
1875 case DRM_FORMAT_ABGR8888:
1876 case DRM_FORMAT_RGBA8888:
1877 case DRM_FORMAT_BGRA8888:
1878 case DRM_FORMAT_XRGB2101010:
1879 case DRM_FORMAT_XBGR2101010:
1880 case DRM_FORMAT_RGBX1010102:
1881 case DRM_FORMAT_BGRX1010102:
1882 case DRM_FORMAT_ARGB2101010:
1883 case DRM_FORMAT_ABGR2101010:
1884 case DRM_FORMAT_RGBA1010102:
1885 case DRM_FORMAT_BGRA1010102:
1886 case DRM_FORMAT_YUYV:
1887 case DRM_FORMAT_YVYU:
1888 case DRM_FORMAT_UYVY:
1889 case DRM_FORMAT_VYUY:
1890 plane_n = 1;
1891 break;
1892 case DRM_FORMAT_NV12:
1893 case DRM_FORMAT_NV21:
1894 case DRM_FORMAT_NV16:
1895 case DRM_FORMAT_NV61:
1896 plane_n = 2;
1897 break;
1898 case DRM_FORMAT_YUV410:
1899 case DRM_FORMAT_YVU410:
1900 case DRM_FORMAT_YUV411:
1901 case DRM_FORMAT_YVU411:
1902 case DRM_FORMAT_YUV420:
1903 case DRM_FORMAT_YVU420:
1904 case DRM_FORMAT_YUV422:
1905 case DRM_FORMAT_YVU422:
1906 case DRM_FORMAT_YUV444:
1907 case DRM_FORMAT_YVU444:
1908 plane_n = 3;
1909 break;
1910 default:
1911 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1912 return 0;
1913 }
1914
1915 /**
1916 * The spec says:
1917 *
1918 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1919 * incomplete, EGL_BAD_PARAMETER is generated."
1920 */
1921 for (i = 0; i < plane_n; ++i) {
1922 if (!attrs->DMABufPlaneFds[i].IsPresent ||
1923 !attrs->DMABufPlaneOffsets[i].IsPresent ||
1924 !attrs->DMABufPlanePitches[i].IsPresent) {
1925 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1926 return 0;
1927 }
1928 }
1929
1930 /**
1931 * The spec also says:
1932 *
1933 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
1934 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
1935 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
1936 * attributes are specified."
1937 */
1938 for (i = plane_n; i < 3; ++i) {
1939 if (attrs->DMABufPlaneFds[i].IsPresent ||
1940 attrs->DMABufPlaneOffsets[i].IsPresent ||
1941 attrs->DMABufPlanePitches[i].IsPresent) {
1942 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
1943 return 0;
1944 }
1945 }
1946
1947 return plane_n;
1948 }
1949
1950 /**
1951 * The spec says:
1952 *
1953 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
1954 * EGL will take a reference to the dma_buf(s) which it will release at any
1955 * time while the EGLDisplay is initialized. It is the responsibility of the
1956 * application to close the dma_buf file descriptors."
1957 *
1958 * Therefore we must never close or otherwise modify the file descriptors.
1959 */
1960 static _EGLImage *
1961 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
1962 EGLClientBuffer buffer, const EGLint *attr_list)
1963 {
1964 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1965 _EGLImage *res;
1966 EGLint err;
1967 _EGLImageAttribs attrs;
1968 __DRIimage *dri_image;
1969 unsigned num_fds;
1970 unsigned i;
1971 int fds[3];
1972 int pitches[3];
1973 int offsets[3];
1974 unsigned error;
1975
1976 /**
1977 * The spec says:
1978 *
1979 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
1980 * error EGL_BAD_PARAMETER is generated."
1981 */
1982 if (buffer != NULL) {
1983 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
1984 return NULL;
1985 }
1986
1987 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1988 if (err != EGL_SUCCESS) {
1989 _eglError(err, "bad attribute");
1990 return NULL;
1991 }
1992
1993 if (!dri2_check_dma_buf_attribs(&attrs))
1994 return NULL;
1995
1996 num_fds = dri2_check_dma_buf_format(&attrs);
1997 if (!num_fds)
1998 return NULL;
1999
2000 for (i = 0; i < num_fds; ++i) {
2001 fds[i] = attrs.DMABufPlaneFds[i].Value;
2002 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2003 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2004 }
2005
2006 dri_image =
2007 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2008 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2009 fds, num_fds, pitches, offsets,
2010 attrs.DMABufYuvColorSpaceHint.Value,
2011 attrs.DMABufSampleRangeHint.Value,
2012 attrs.DMABufChromaHorizontalSiting.Value,
2013 attrs.DMABufChromaVerticalSiting.Value,
2014 &error,
2015 NULL);
2016 dri2_create_image_khr_texture_error(error);
2017
2018 if (!dri_image)
2019 return EGL_NO_IMAGE_KHR;
2020
2021 res = dri2_create_image_from_dri(disp, dri_image);
2022
2023 return res;
2024 }
2025 static _EGLImage *
2026 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2027 const EGLint *attr_list)
2028 {
2029 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2030 struct dri2_egl_image *dri2_img;
2031 _EGLImageAttribs attrs;
2032 unsigned int dri_use, valid_mask;
2033 int format;
2034 EGLint err = EGL_SUCCESS;
2035
2036 (void) drv;
2037
2038 dri2_img = malloc(sizeof *dri2_img);
2039 if (!dri2_img) {
2040 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2041 return EGL_NO_IMAGE_KHR;
2042 }
2043
2044 if (!attr_list) {
2045 err = EGL_BAD_PARAMETER;
2046 goto cleanup_img;
2047 }
2048
2049 if (!_eglInitImage(&dri2_img->base, disp)) {
2050 err = EGL_BAD_PARAMETER;
2051 goto cleanup_img;
2052 }
2053
2054 err = _eglParseImageAttribList(&attrs, disp, attr_list);
2055 if (err != EGL_SUCCESS)
2056 goto cleanup_img;
2057
2058 if (attrs.Width <= 0 || attrs.Height <= 0) {
2059 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2060 attrs.Width, attrs.Height);
2061 goto cleanup_img;
2062 }
2063
2064 switch (attrs.DRMBufferFormatMESA) {
2065 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2066 format = __DRI_IMAGE_FORMAT_ARGB8888;
2067 break;
2068 default:
2069 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2070 attrs.DRMBufferFormatMESA);
2071 goto cleanup_img;
2072 }
2073
2074 valid_mask =
2075 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2076 EGL_DRM_BUFFER_USE_SHARE_MESA |
2077 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2078 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2079 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2080 attrs.DRMBufferUseMESA & ~valid_mask);
2081 goto cleanup_img;
2082 }
2083
2084 dri_use = 0;
2085 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2086 dri_use |= __DRI_IMAGE_USE_SHARE;
2087 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2088 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2089 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2090 dri_use |= __DRI_IMAGE_USE_CURSOR;
2091
2092 dri2_img->dri_image =
2093 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2094 attrs.Width, attrs.Height,
2095 format, dri_use, dri2_img);
2096 if (dri2_img->dri_image == NULL) {
2097 err = EGL_BAD_ALLOC;
2098 goto cleanup_img;
2099 }
2100
2101 return &dri2_img->base;
2102
2103 cleanup_img:
2104 free(dri2_img);
2105 _eglError(err, "dri2_create_drm_image_mesa");
2106
2107 return EGL_NO_IMAGE_KHR;
2108 }
2109
2110 static EGLBoolean
2111 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2112 EGLint *name, EGLint *handle, EGLint *stride)
2113 {
2114 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2115 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2116
2117 (void) drv;
2118
2119 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2120 __DRI_IMAGE_ATTRIB_NAME, name)) {
2121 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2122 return EGL_FALSE;
2123 }
2124
2125 if (handle)
2126 dri2_dpy->image->queryImage(dri2_img->dri_image,
2127 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2128
2129 if (stride)
2130 dri2_dpy->image->queryImage(dri2_img->dri_image,
2131 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2132
2133 return EGL_TRUE;
2134 }
2135
2136 static EGLBoolean
2137 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2138 _EGLImage *img,
2139 EGLint *fourcc, EGLint *nplanes,
2140 EGLuint64KHR *modifiers)
2141 {
2142 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2143 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2144
2145 (void) drv;
2146
2147
2148 if (nplanes)
2149 dri2_dpy->image->queryImage(dri2_img->dri_image,
2150 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2151 if (fourcc)
2152 dri2_dpy->image->queryImage(dri2_img->dri_image,
2153 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2154
2155 if (modifiers)
2156 *modifiers = 0;
2157
2158 return EGL_TRUE;
2159 }
2160
2161 static EGLBoolean
2162 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2163 int *fds, EGLint *strides, EGLint *offsets)
2164 {
2165 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2166 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2167
2168 (void) drv;
2169
2170 /* rework later to provide multiple fds/strides/offsets */
2171 if (fds)
2172 dri2_dpy->image->queryImage(dri2_img->dri_image,
2173 __DRI_IMAGE_ATTRIB_FD, fds);
2174
2175 if (strides)
2176 dri2_dpy->image->queryImage(dri2_img->dri_image,
2177 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2178
2179 if (offsets)
2180 offsets[0] = 0;
2181
2182 return EGL_TRUE;
2183 }
2184
2185 #endif
2186
2187 _EGLImage *
2188 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2189 _EGLContext *ctx, EGLenum target,
2190 EGLClientBuffer buffer, const EGLint *attr_list)
2191 {
2192 (void) drv;
2193
2194 switch (target) {
2195 case EGL_GL_TEXTURE_2D_KHR:
2196 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2197 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2198 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2199 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2200 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2201 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2202 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2203 case EGL_GL_TEXTURE_3D_KHR:
2204 if (disp->Extensions.KHR_gl_texture_3D_image) {
2205 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2206 }
2207 else {
2208 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2209 return EGL_NO_IMAGE_KHR;
2210 }
2211 case EGL_GL_RENDERBUFFER_KHR:
2212 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2213 #ifdef HAVE_LIBDRM
2214 case EGL_DRM_BUFFER_MESA:
2215 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2216 case EGL_LINUX_DMA_BUF_EXT:
2217 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2218 #endif
2219 #ifdef HAVE_WAYLAND_PLATFORM
2220 case EGL_WAYLAND_BUFFER_WL:
2221 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2222 #endif
2223 default:
2224 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2225 return EGL_NO_IMAGE_KHR;
2226 }
2227 }
2228
2229 static EGLBoolean
2230 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2231 {
2232 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2233 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2234
2235 (void) drv;
2236
2237 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2238 free(dri2_img);
2239
2240 return EGL_TRUE;
2241 }
2242
2243 #ifdef HAVE_WAYLAND_PLATFORM
2244
2245 static void
2246 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2247 struct wl_drm_buffer *buffer)
2248 {
2249 _EGLDisplay *disp = user_data;
2250 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2251 __DRIimage *img;
2252 int i, dri_components = 0;
2253
2254 if (fd == -1)
2255 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2256 buffer->width,
2257 buffer->height,
2258 buffer->format,
2259 (int*)&name, 1,
2260 buffer->stride,
2261 buffer->offset,
2262 NULL);
2263 else
2264 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2265 buffer->width,
2266 buffer->height,
2267 buffer->format,
2268 &fd, 1,
2269 buffer->stride,
2270 buffer->offset,
2271 NULL);
2272
2273 if (img == NULL)
2274 return;
2275
2276 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2277
2278 buffer->driver_format = NULL;
2279 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2280 if (wl_drm_components[i].dri_components == dri_components)
2281 buffer->driver_format = &wl_drm_components[i];
2282
2283 if (buffer->driver_format == NULL)
2284 dri2_dpy->image->destroyImage(img);
2285 else
2286 buffer->driver_buffer = img;
2287 }
2288
2289 static void
2290 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2291 {
2292 _EGLDisplay *disp = user_data;
2293 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2294
2295 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2296 }
2297
2298 static struct wayland_drm_callbacks wl_drm_callbacks = {
2299 .authenticate = NULL,
2300 .reference_buffer = dri2_wl_reference_buffer,
2301 .release_buffer = dri2_wl_release_buffer
2302 };
2303
2304 static EGLBoolean
2305 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2306 struct wl_display *wl_dpy)
2307 {
2308 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2309 int flags = 0;
2310 uint64_t cap;
2311
2312 (void) drv;
2313
2314 if (dri2_dpy->wl_server_drm)
2315 return EGL_FALSE;
2316
2317 wl_drm_callbacks.authenticate =
2318 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2319
2320 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2321 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2322 dri2_dpy->image->base.version >= 7 &&
2323 dri2_dpy->image->createImageFromFds != NULL)
2324 flags |= WAYLAND_DRM_PRIME;
2325
2326 dri2_dpy->wl_server_drm =
2327 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2328 &wl_drm_callbacks, disp, flags);
2329
2330 if (!dri2_dpy->wl_server_drm)
2331 return EGL_FALSE;
2332
2333 #ifdef HAVE_DRM_PLATFORM
2334 /* We have to share the wl_drm instance with gbm, so gbm can convert
2335 * wl_buffers to gbm bos. */
2336 if (dri2_dpy->gbm_dri)
2337 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2338 #endif
2339
2340 return EGL_TRUE;
2341 }
2342
2343 static EGLBoolean
2344 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2345 struct wl_display *wl_dpy)
2346 {
2347 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2348
2349 (void) drv;
2350
2351 if (!dri2_dpy->wl_server_drm)
2352 return EGL_FALSE;
2353
2354 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2355 dri2_dpy->wl_server_drm = NULL;
2356
2357 return EGL_TRUE;
2358 }
2359
2360 static EGLBoolean
2361 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2362 struct wl_resource *buffer_resource,
2363 EGLint attribute, EGLint *value)
2364 {
2365 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2366 struct wl_drm_buffer *buffer;
2367 const struct wl_drm_components_descriptor *format;
2368
2369 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2370 if (!buffer)
2371 return EGL_FALSE;
2372
2373 format = buffer->driver_format;
2374 switch (attribute) {
2375 case EGL_TEXTURE_FORMAT:
2376 *value = format->components;
2377 return EGL_TRUE;
2378 case EGL_WIDTH:
2379 *value = buffer->width;
2380 return EGL_TRUE;
2381 case EGL_HEIGHT:
2382 *value = buffer->height;
2383 return EGL_TRUE;
2384 }
2385
2386 return EGL_FALSE;
2387 }
2388 #endif
2389
2390 static void
2391 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2392 {
2393 p_atomic_inc(&sync->refcount);
2394 }
2395
2396 static void
2397 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2398 struct dri2_egl_sync *dri2_sync)
2399 {
2400 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2401 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR)
2402 cnd_destroy(&dri2_sync->cond);
2403
2404 if (dri2_sync->fence)
2405 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2406
2407 free(dri2_sync);
2408 }
2409 }
2410
2411 static _EGLSync *
2412 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2413 EGLenum type, const EGLint *attrib_list,
2414 const EGLAttrib *attrib_list64)
2415 {
2416 _EGLContext *ctx = _eglGetCurrentContext();
2417 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2418 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2419 struct dri2_egl_sync *dri2_sync;
2420 EGLint ret;
2421 pthread_condattr_t attr;
2422
2423 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2424 if (!dri2_sync) {
2425 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2426 return NULL;
2427 }
2428
2429 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2430 attrib_list64)) {
2431 free(dri2_sync);
2432 return NULL;
2433 }
2434
2435 switch (type) {
2436 case EGL_SYNC_FENCE_KHR:
2437 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2438 if (!dri2_sync->fence) {
2439 /* Why did it fail? DRI doesn't return an error code, so we emit
2440 * a generic EGL error that doesn't communicate user error.
2441 */
2442 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2443 free(dri2_sync);
2444 return NULL;
2445 }
2446 break;
2447
2448 case EGL_SYNC_CL_EVENT_KHR:
2449 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2450 dri2_dpy->dri_screen,
2451 dri2_sync->base.CLEvent);
2452 /* this can only happen if the cl_event passed in is invalid. */
2453 if (!dri2_sync->fence) {
2454 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2455 free(dri2_sync);
2456 return NULL;
2457 }
2458
2459 /* the initial status must be "signaled" if the cl_event is signaled */
2460 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2461 dri2_sync->fence, 0, 0))
2462 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2463 break;
2464
2465 case EGL_SYNC_REUSABLE_KHR:
2466 /* intialize attr */
2467 ret = pthread_condattr_init(&attr);
2468
2469 if (ret) {
2470 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2471 free(dri2_sync);
2472 return NULL;
2473 }
2474
2475 /* change clock attribute to CLOCK_MONOTONIC */
2476 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
2477
2478 if (ret) {
2479 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2480 free(dri2_sync);
2481 return NULL;
2482 }
2483
2484 ret = pthread_cond_init(&dri2_sync->cond, &attr);
2485
2486 if (ret) {
2487 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
2488 free(dri2_sync);
2489 return NULL;
2490 }
2491
2492 /* initial status of reusable sync must be "unsignaled" */
2493 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
2494 break;
2495 }
2496
2497 p_atomic_set(&dri2_sync->refcount, 1);
2498 return &dri2_sync->base;
2499 }
2500
2501 static EGLBoolean
2502 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2503 {
2504 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2505 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2506 EGLint ret = EGL_TRUE;
2507 EGLint err;
2508
2509 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
2510 * then unlock all threads possibly blocked by the reusable sync before
2511 * destroying it.
2512 */
2513 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
2514 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2515 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2516 /* unblock all threads currently blocked by sync */
2517 err = cnd_broadcast(&dri2_sync->cond);
2518
2519 if (err) {
2520 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
2521 ret = EGL_FALSE;
2522 }
2523 }
2524 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2525
2526 return ret;
2527 }
2528
2529 static EGLint
2530 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2531 EGLint flags, EGLTime timeout)
2532 {
2533 _EGLContext *ctx = _eglGetCurrentContext();
2534 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2535 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2536 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2537 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2538 unsigned wait_flags = 0;
2539
2540 /* timespecs for cnd_timedwait */
2541 struct timespec current;
2542 xtime expire;
2543
2544 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2545
2546 /* The EGL_KHR_fence_sync spec states:
2547 *
2548 * "If no context is current for the bound API,
2549 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
2550 */
2551 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2552 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2553
2554 /* the sync object should take a reference while waiting */
2555 dri2_egl_ref_sync(dri2_sync);
2556
2557 switch (sync->Type) {
2558 case EGL_SYNC_FENCE_KHR:
2559 case EGL_SYNC_CL_EVENT_KHR:
2560 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
2561 dri2_sync->fence, wait_flags,
2562 timeout))
2563 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2564 else
2565 ret = EGL_TIMEOUT_EXPIRED_KHR;
2566 break;
2567
2568 case EGL_SYNC_REUSABLE_KHR:
2569 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
2570 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
2571 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
2572 if (dri2_drv->glFlush)
2573 dri2_drv->glFlush();
2574 }
2575
2576 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
2577 if (timeout == EGL_FOREVER_KHR) {
2578 if (mtx_lock(&dri2_sync->mutex)) {
2579 ret = EGL_FALSE;
2580 goto cleanup;
2581 }
2582
2583 ret = cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
2584
2585 if (mtx_unlock(&dri2_sync->mutex)) {
2586 ret = EGL_FALSE;
2587 goto cleanup;
2588 }
2589
2590 if (ret) {
2591 _eglError(EGL_BAD_PARAMETER, "eglClientWaitSyncKHR");
2592 ret = EGL_FALSE;
2593 }
2594 } else {
2595 /* if reusable sync has not been yet signaled */
2596 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
2597 clock_gettime(CLOCK_MONOTONIC, &current);
2598
2599 /* calculating when to expire */
2600 expire.nsec = timeout % 1000000000L;
2601 expire.sec = timeout / 1000000000L;
2602
2603 expire.nsec += current.tv_nsec;
2604 expire.sec += current.tv_sec;
2605
2606 /* expire.nsec now is a number between 0 and 1999999998 */
2607 if (expire.nsec > 999999999L) {
2608 expire.sec++;
2609 expire.nsec -= 1000000000L;
2610 }
2611
2612 if (mtx_lock(&dri2_sync->mutex)) {
2613 ret = EGL_FALSE;
2614 goto cleanup;
2615 }
2616
2617 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
2618
2619 if (mtx_unlock(&dri2_sync->mutex)) {
2620 ret = EGL_FALSE;
2621 goto cleanup;
2622 }
2623
2624 if (ret)
2625 if (ret == thrd_busy) {
2626 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
2627 ret = EGL_TIMEOUT_EXPIRED_KHR;
2628 } else {
2629 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2630 ret = EGL_FALSE;
2631 }
2632 }
2633 }
2634 }
2635 break;
2636 }
2637
2638 cleanup:
2639 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2640
2641 if (ret == EGL_FALSE) {
2642 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
2643 return EGL_FALSE;
2644 }
2645
2646 return ret;
2647 }
2648
2649 static EGLBoolean
2650 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2651 EGLenum mode)
2652 {
2653 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2654 EGLint ret;
2655
2656 if (sync->Type != EGL_SYNC_REUSABLE_KHR) {
2657 _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
2658 return EGL_FALSE;
2659 }
2660
2661 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR) {
2662 _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
2663 return EGL_FALSE;
2664 }
2665
2666 dri2_sync->base.SyncStatus = mode;
2667
2668 if (mode == EGL_SIGNALED_KHR) {
2669 ret = cnd_broadcast(&dri2_sync->cond);
2670
2671 /* fail to broadcast */
2672 if (ret) {
2673 _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
2674 return EGL_FALSE;
2675 }
2676 }
2677
2678 return EGL_TRUE;
2679 }
2680
2681 static EGLint
2682 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2683 {
2684 _EGLContext *ctx = _eglGetCurrentContext();
2685 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2686 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2687 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2688
2689 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2690 dri2_sync->fence, 0);
2691 return EGL_TRUE;
2692 }
2693
2694 static void
2695 dri2_unload(_EGLDriver *drv)
2696 {
2697 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2698
2699 if (dri2_drv->handle)
2700 dlclose(dri2_drv->handle);
2701 free(dri2_drv);
2702 }
2703
2704 static EGLBoolean
2705 dri2_load(_EGLDriver *drv)
2706 {
2707 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2708 #ifdef HAVE_ANDROID_PLATFORM
2709 const char *libname = "libglapi.so";
2710 #elif defined(__APPLE__)
2711 const char *libname = "libglapi.0.dylib";
2712 #else
2713 const char *libname = "libglapi.so.0";
2714 #endif
2715 void *handle;
2716
2717 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2718 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2719 if (handle) {
2720 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2721 dlsym(handle, "_glapi_get_proc_address");
2722 if (!dri2_drv->get_proc_address || !libname) {
2723 /* no need to keep a reference */
2724 dlclose(handle);
2725 handle = NULL;
2726 }
2727 }
2728
2729 /* if glapi is not available, loading DRI drivers will fail */
2730 if (!dri2_drv->get_proc_address) {
2731 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2732 return EGL_FALSE;
2733 }
2734
2735 dri2_drv->glFlush = (void (*)(void))
2736 dri2_drv->get_proc_address("glFlush");
2737
2738 dri2_drv->handle = handle;
2739
2740 return EGL_TRUE;
2741 }
2742
2743 /**
2744 * This is the main entrypoint into the driver, called by libEGL.
2745 * Create a new _EGLDriver object and init its dispatch table.
2746 */
2747 _EGLDriver *
2748 _eglBuiltInDriverDRI2(const char *args)
2749 {
2750 struct dri2_egl_driver *dri2_drv;
2751
2752 (void) args;
2753
2754 dri2_drv = calloc(1, sizeof *dri2_drv);
2755 if (!dri2_drv)
2756 return NULL;
2757
2758 if (!dri2_load(&dri2_drv->base)) {
2759 free(dri2_drv);
2760 return NULL;
2761 }
2762
2763 _eglInitDriverFallbacks(&dri2_drv->base);
2764 dri2_drv->base.API.Initialize = dri2_initialize;
2765 dri2_drv->base.API.Terminate = dri2_terminate;
2766 dri2_drv->base.API.CreateContext = dri2_create_context;
2767 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2768 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2769 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2770 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2771 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2772 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2773 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2774 dri2_drv->base.API.WaitClient = dri2_wait_client;
2775 dri2_drv->base.API.WaitNative = dri2_wait_native;
2776 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2777 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2778 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2779 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2780 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2781 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2782 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2783 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2784 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2785 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2786 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2787 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2788 #ifdef HAVE_LIBDRM
2789 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2790 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2791 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2792 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2793 #endif
2794 #ifdef HAVE_WAYLAND_PLATFORM
2795 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2796 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2797 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2798 #endif
2799 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2800 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2801 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2802 dri2_drv->base.API.SignalSyncKHR = dri2_signal_sync;
2803 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2804 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2805
2806 dri2_drv->base.Name = "DRI2";
2807 dri2_drv->base.Unload = dri2_unload;
2808
2809 return &dri2_drv->base;
2810 }