projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
egl/dri2: don't leak the fd on dri2_terminate
[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 #ifdef HAVE_LIBDRM
42 #include <xf86drm.h>
43 #include <drm_fourcc.h>
44 #endif
45 #include <GL/gl.h>
46 #include <GL/internal/dri_interface.h>
47 #include <sys/types.h>
48 #include <sys/stat.h>
49
50 #ifdef HAVE_WAYLAND_PLATFORM
51 #include "wayland-drm.h"
52 #include "wayland-drm-client-protocol.h"
53 #endif
54
55 #include "egl_dri2.h"
56 #include "util/u_atomic.h"
57
58 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
59 * some of the definitions here so that building Mesa won't bleeding-edge
60 * kernel headers.
61 */
62 #ifndef DRM_FORMAT_R8
63 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
64 #endif
65
66 #ifndef DRM_FORMAT_RG88
67 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
68 #endif
69
70 #ifndef DRM_FORMAT_GR88
71 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
72 #endif
73
74 const __DRIuseInvalidateExtension use_invalidate = {
75 .base = { __DRI_USE_INVALIDATE, 1 }
76 };
77
78 EGLint dri2_to_egl_attribute_map[] = {
79 0,
80 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
81 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
82 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
83 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
84 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
85 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
86 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
87 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
88 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
89 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
90 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
91 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
92 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
93 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
94 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
95 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
96 0, /* __DRI_ATTRIB_RENDER_TYPE, */
97 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
98 0, /* __DRI_ATTRIB_CONFORMANT */
99 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
100 0, /* __DRI_ATTRIB_STEREO */
101 0, /* __DRI_ATTRIB_AUX_BUFFERS */
102 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
103 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
104 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
105 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
106 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
108 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
109 0, /* __DRI_ATTRIB_RED_MASK */
110 0, /* __DRI_ATTRIB_GREEN_MASK */
111 0, /* __DRI_ATTRIB_BLUE_MASK */
112 0, /* __DRI_ATTRIB_ALPHA_MASK */
113 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
114 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
115 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
116 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
117 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
118 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
119 0, /* __DRI_ATTRIB_SWAP_METHOD */
120 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
121 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
122 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
123 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
124 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
125 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
126 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
127 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
128 };
129
130 const __DRIconfig *
131 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
132 EGLenum colorspace)
133 {
134 if (colorspace == EGL_GL_COLORSPACE_SRGB_KHR)
135 return surface_type == EGL_WINDOW_BIT ? conf->dri_srgb_double_config :
136 conf->dri_srgb_single_config;
137 else
138 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config :
139 conf->dri_single_config;
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 break;
241
242 default:
243 key = dri2_to_egl_attribute_map[attrib];
244 if (key != 0)
245 _eglSetConfigKey(&base, key, value);
246 break;
247 }
248 }
249
250 if (attr_list)
251 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
252 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
253
254 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
255 return NULL;
256
257 base.NativeRenderable = EGL_TRUE;
258
259 base.SurfaceType = surface_type;
260 if (surface_type & (EGL_PBUFFER_BIT |
261 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
262 base.BindToTextureRGB = bind_to_texture_rgb;
263 if (base.AlphaSize > 0)
264 base.BindToTextureRGBA = bind_to_texture_rgba;
265 }
266
267 base.RenderableType = disp->ClientAPIs;
268 base.Conformant = disp->ClientAPIs;
269
270 base.MinSwapInterval = dri2_dpy->min_swap_interval;
271 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
272
273 if (!_eglValidateConfig(&base, EGL_FALSE)) {
274 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
275 return NULL;
276 }
277
278 config_id = base.ConfigID;
279 base.ConfigID = EGL_DONT_CARE;
280 base.SurfaceType = EGL_DONT_CARE;
281 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
282 (_EGLArrayForEach) dri2_match_config, &base);
283
284 if (num_configs == 1) {
285 conf = (struct dri2_egl_config *) matching_config;
286
287 if (double_buffer && srgb && !conf->dri_srgb_double_config)
288 conf->dri_srgb_double_config = dri_config;
289 else if (double_buffer && !srgb && !conf->dri_double_config)
290 conf->dri_double_config = dri_config;
291 else if (!double_buffer && srgb && !conf->dri_srgb_single_config)
292 conf->dri_srgb_single_config = dri_config;
293 else if (!double_buffer && !srgb && !conf->dri_single_config)
294 conf->dri_single_config = dri_config;
295 else
296 /* a similar config type is already added (unlikely) => discard */
297 return NULL;
298 }
299 else if (num_configs == 0) {
300 conf = calloc(1, sizeof *conf);
301 if (conf == NULL)
302 return NULL;
303
304 memcpy(&conf->base, &base, sizeof base);
305 if (double_buffer) {
306 if (srgb)
307 conf->dri_srgb_double_config = dri_config;
308 else
309 conf->dri_double_config = dri_config;
310 } else {
311 if (srgb)
312 conf->dri_srgb_single_config = dri_config;
313 else
314 conf->dri_single_config = dri_config;
315 }
316 conf->base.ConfigID = config_id;
317
318 _eglLinkConfig(&conf->base);
319 }
320 else {
321 assert(0);
322 return NULL;
323 }
324
325 if (double_buffer) {
326 surface_type &= ~EGL_PIXMAP_BIT;
327 }
328
329 conf->base.SurfaceType |= surface_type;
330
331 return conf;
332 }
333
334 __DRIimage *
335 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
336 {
337 _EGLDisplay *disp = data;
338 struct dri2_egl_image *dri2_img;
339 _EGLImage *img;
340
341 (void) screen;
342
343 img = _eglLookupImage(image, disp);
344 if (img == NULL) {
345 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
346 return NULL;
347 }
348
349 dri2_img = dri2_egl_image(image);
350
351 return dri2_img->dri_image;
352 }
353
354 const __DRIimageLookupExtension image_lookup_extension = {
355 .base = { __DRI_IMAGE_LOOKUP, 1 },
356
357 .lookupEGLImage = dri2_lookup_egl_image
358 };
359
360 struct dri2_extension_match {
361 const char *name;
362 int version;
363 int offset;
364 };
365
366 static struct dri2_extension_match dri2_driver_extensions[] = {
367 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
368 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
369 { NULL, 0, 0 }
370 };
371
372 static struct dri2_extension_match dri2_core_extensions[] = {
373 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
374 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
375 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
376 { NULL, 0, 0 }
377 };
378
379 static struct dri2_extension_match swrast_driver_extensions[] = {
380 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
381 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
382 { NULL, 0, 0 }
383 };
384
385 static struct dri2_extension_match swrast_core_extensions[] = {
386 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
387 { NULL, 0, 0 }
388 };
389
390 static EGLBoolean
391 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
392 struct dri2_extension_match *matches,
393 const __DRIextension **extensions)
394 {
395 int i, j, ret = EGL_TRUE;
396 void *field;
397
398 for (i = 0; extensions[i]; i++) {
399 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
400 for (j = 0; matches[j].name; j++) {
401 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
402 extensions[i]->version >= matches[j].version) {
403 field = ((char *) dri2_dpy + matches[j].offset);
404 *(const __DRIextension **) field = extensions[i];
405 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
406 extensions[i]->name, extensions[i]->version);
407 }
408 }
409 }
410
411 for (j = 0; matches[j].name; j++) {
412 field = ((char *) dri2_dpy + matches[j].offset);
413 if (*(const __DRIextension **) field == NULL) {
414 _eglLog(_EGL_WARNING, "DRI2: did not find extension %s version %d",
415 matches[j].name, matches[j].version);
416 ret = EGL_FALSE;
417 }
418 }
419
420 return ret;
421 }
422
423 static const __DRIextension **
424 dri2_open_driver(_EGLDisplay *disp)
425 {
426 struct dri2_egl_display *dri2_dpy = disp->DriverData;
427 const __DRIextension **extensions = NULL;
428 char path[PATH_MAX], *search_paths, *p, *next, *end;
429 char *get_extensions_name;
430 const __DRIextension **(*get_extensions)(void);
431
432 search_paths = NULL;
433 if (geteuid() == getuid()) {
434 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
435 search_paths = getenv("LIBGL_DRIVERS_PATH");
436 }
437 if (search_paths == NULL)
438 search_paths = DEFAULT_DRIVER_DIR;
439
440 dri2_dpy->driver = NULL;
441 end = search_paths + strlen(search_paths);
442 for (p = search_paths; p < end; p = next + 1) {
443 int len;
444 next = strchr(p, ':');
445 if (next == NULL)
446 next = end;
447
448 len = next - p;
449 #if GLX_USE_TLS
450 snprintf(path, sizeof path,
451 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
452 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
453 #endif
454 if (dri2_dpy->driver == NULL) {
455 snprintf(path, sizeof path,
456 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
457 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
458 if (dri2_dpy->driver == NULL)
459 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
460 }
461 /* not need continue to loop all paths once the driver is found */
462 if (dri2_dpy->driver != NULL)
463 break;
464
465 #ifdef ANDROID
466 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
467 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
468 if (dri2_dpy->driver == NULL)
469 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
470 else
471 break;
472 #endif
473 }
474
475 if (dri2_dpy->driver == NULL) {
476 _eglLog(_EGL_WARNING,
477 "DRI2: failed to open %s (search paths %s)",
478 dri2_dpy->driver_name, search_paths);
479 return NULL;
480 }
481
482 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
483
484 if (asprintf(&get_extensions_name, "%s_%s",
485 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
486 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
487 if (get_extensions) {
488 extensions = get_extensions();
489 } else {
490 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
491 get_extensions_name, dlerror());
492 }
493 free(get_extensions_name);
494 }
495
496 if (!extensions)
497 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
498 if (extensions == NULL) {
499 _eglLog(_EGL_WARNING,
500 "DRI2: driver exports no extensions (%s)", dlerror());
501 dlclose(dri2_dpy->driver);
502 }
503
504 return extensions;
505 }
506
507 EGLBoolean
508 dri2_load_driver(_EGLDisplay *disp)
509 {
510 struct dri2_egl_display *dri2_dpy = disp->DriverData;
511 const __DRIextension **extensions;
512
513 extensions = dri2_open_driver(disp);
514 if (!extensions)
515 return EGL_FALSE;
516
517 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
518 dlclose(dri2_dpy->driver);
519 return EGL_FALSE;
520 }
521 dri2_dpy->driver_extensions = extensions;
522
523 return EGL_TRUE;
524 }
525
526 EGLBoolean
527 dri2_load_driver_swrast(_EGLDisplay *disp)
528 {
529 struct dri2_egl_display *dri2_dpy = disp->DriverData;
530 const __DRIextension **extensions;
531
532 extensions = dri2_open_driver(disp);
533 if (!extensions)
534 return EGL_FALSE;
535
536 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
537 dlclose(dri2_dpy->driver);
538 return EGL_FALSE;
539 }
540 dri2_dpy->driver_extensions = extensions;
541
542 return EGL_TRUE;
543 }
544
545 static unsigned
546 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
547 {
548 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
549 unsigned int value = 0;
550
551 if (!rendererQuery ||
552 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
553 return 0;
554
555 return value;
556 }
557
558 void
559 dri2_setup_screen(_EGLDisplay *disp)
560 {
561 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
562 unsigned int api_mask;
563
564 if (dri2_dpy->dri2) {
565 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
566 } else {
567 assert(dri2_dpy->swrast);
568 api_mask = 1 << __DRI_API_OPENGL |
569 1 << __DRI_API_GLES |
570 1 << __DRI_API_GLES2 |
571 1 << __DRI_API_GLES3;
572 }
573
574 disp->ClientAPIs = 0;
575 if (api_mask & (1 <<__DRI_API_OPENGL))
576 disp->ClientAPIs |= EGL_OPENGL_BIT;
577 if (api_mask & (1 <<__DRI_API_GLES))
578 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
579 if (api_mask & (1 << __DRI_API_GLES2))
580 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
581 if (api_mask & (1 << __DRI_API_GLES3))
582 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
583
584 assert(dri2_dpy->dri2 || dri2_dpy->swrast);
585 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
586 disp->Extensions.MESA_configless_context = EGL_TRUE;
587
588 if (dri2_renderer_query_integer(dri2_dpy,
589 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
590 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
591
592 if ((dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
593 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
594 disp->Extensions.KHR_create_context = EGL_TRUE;
595
596 if (dri2_dpy->robustness)
597 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
598 }
599
600 if (dri2_dpy->fence) {
601 disp->Extensions.KHR_fence_sync = EGL_TRUE;
602 disp->Extensions.KHR_wait_sync = EGL_TRUE;
603 if (dri2_dpy->fence->get_fence_from_cl_event)
604 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
605 }
606
607 if (dri2_dpy->image) {
608 if (dri2_dpy->image->base.version >= 10 &&
609 dri2_dpy->image->getCapabilities != NULL) {
610 int capabilities;
611
612 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
613 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
614
615 if (dri2_dpy->image->base.version >= 11)
616 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
617 } else {
618 disp->Extensions.MESA_drm_image = EGL_TRUE;
619 if (dri2_dpy->image->base.version >= 11)
620 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
621 }
622
623 disp->Extensions.KHR_image_base = EGL_TRUE;
624 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
625 if (dri2_dpy->image->base.version >= 5 &&
626 dri2_dpy->image->createImageFromTexture) {
627 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
628 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
629 }
630 if (dri2_renderer_query_integer(dri2_dpy,
631 __DRI2_RENDERER_HAS_TEXTURE_3D))
632 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
633 #ifdef HAVE_LIBDRM
634 if (dri2_dpy->image->base.version >= 8 &&
635 dri2_dpy->image->createImageFromDmaBufs) {
636 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
637 }
638 #endif
639 }
640 }
641
642 /* All platforms but DRM call this function to create the screen, query the
643 * dri extensions, setup the vtables and populate the driver_configs.
644 * DRM inherits all that information from its display - GBM.
645 */
646 EGLBoolean
647 dri2_create_screen(_EGLDisplay *disp)
648 {
649 const __DRIextension **extensions;
650 struct dri2_egl_display *dri2_dpy;
651 unsigned i;
652
653 dri2_dpy = disp->DriverData;
654
655 if (dri2_dpy->dri2) {
656 if (dri2_dpy->dri2->base.version >= 4) {
657 dri2_dpy->dri_screen =
658 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
659 dri2_dpy->extensions,
660 dri2_dpy->driver_extensions,
661 &dri2_dpy->driver_configs, disp);
662 } else {
663 dri2_dpy->dri_screen =
664 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
665 dri2_dpy->extensions,
666 &dri2_dpy->driver_configs, disp);
667 }
668 } else {
669 assert(dri2_dpy->swrast);
670 if (dri2_dpy->swrast->base.version >= 4) {
671 dri2_dpy->dri_screen =
672 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
673 dri2_dpy->driver_extensions,
674 &dri2_dpy->driver_configs, disp);
675 } else {
676 dri2_dpy->dri_screen =
677 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
678 &dri2_dpy->driver_configs, disp);
679 }
680 }
681
682 if (dri2_dpy->dri_screen == NULL) {
683 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
684 return EGL_FALSE;
685 }
686
687 dri2_dpy->own_dri_screen = 1;
688
689 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
690
691 if (dri2_dpy->dri2) {
692 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
693 goto cleanup_dri_screen;
694 } else {
695 assert(dri2_dpy->swrast);
696 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
697 goto cleanup_dri_screen;
698 }
699
700 for (i = 0; extensions[i]; i++) {
701 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
702 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
703 }
704 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
705 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
706 }
707 if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
708 dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
709 }
710 if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
711 dri2_dpy->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
712 }
713 }
714
715 dri2_setup_screen(disp);
716
717 return EGL_TRUE;
718
719 cleanup_dri_screen:
720 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
721
722 return EGL_FALSE;
723 }
724
725 /**
726 * Called via eglInitialize(), GLX_drv->API.Initialize().
727 */
728 static EGLBoolean
729 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
730 {
731 /* not until swrast_dri is supported */
732 if (disp->Options.UseFallback)
733 return EGL_FALSE;
734
735 switch (disp->Platform) {
736 #ifdef HAVE_SURFACELESS_PLATFORM
737 case _EGL_PLATFORM_SURFACELESS:
738 if (disp->Options.TestOnly)
739 return EGL_TRUE;
740 return dri2_initialize_surfaceless(drv, disp);
741 #endif
742
743 #ifdef HAVE_X11_PLATFORM
744 case _EGL_PLATFORM_X11:
745 if (disp->Options.TestOnly)
746 return EGL_TRUE;
747 return dri2_initialize_x11(drv, disp);
748 #endif
749
750 #ifdef HAVE_DRM_PLATFORM
751 case _EGL_PLATFORM_DRM:
752 if (disp->Options.TestOnly)
753 return EGL_TRUE;
754 return dri2_initialize_drm(drv, disp);
755 #endif
756 #ifdef HAVE_WAYLAND_PLATFORM
757 case _EGL_PLATFORM_WAYLAND:
758 if (disp->Options.TestOnly)
759 return EGL_TRUE;
760 return dri2_initialize_wayland(drv, disp);
761 #endif
762 #ifdef HAVE_ANDROID_PLATFORM
763 case _EGL_PLATFORM_ANDROID:
764 if (disp->Options.TestOnly)
765 return EGL_TRUE;
766 return dri2_initialize_android(drv, disp);
767 #endif
768
769 default:
770 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
771 return EGL_FALSE;
772 }
773 }
774
775 /**
776 * Called via eglTerminate(), drv->API.Terminate().
777 */
778 static EGLBoolean
779 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
780 {
781 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
782 unsigned i;
783
784 _eglReleaseDisplayResources(drv, disp);
785 _eglCleanupDisplay(disp);
786
787 if (dri2_dpy->own_dri_screen)
788 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
789 if (dri2_dpy->fd >= 0)
790 close(dri2_dpy->fd);
791 if (dri2_dpy->driver)
792 dlclose(dri2_dpy->driver);
793 free(dri2_dpy->device_name);
794 free(dri2_dpy->driver_name);
795
796 switch (disp->Platform) {
797 #ifdef HAVE_X11_PLATFORM
798 case _EGL_PLATFORM_X11:
799 if (dri2_dpy->own_device) {
800 xcb_disconnect(dri2_dpy->conn);
801 }
802 break;
803 #endif
804 #ifdef HAVE_DRM_PLATFORM
805 case _EGL_PLATFORM_DRM:
806 if (dri2_dpy->own_device) {
807 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
808 }
809 break;
810 #endif
811 #ifdef HAVE_WAYLAND_PLATFORM
812 case _EGL_PLATFORM_WAYLAND:
813 if (dri2_dpy->wl_drm)
814 wl_drm_destroy(dri2_dpy->wl_drm);
815 if (dri2_dpy->wl_shm)
816 wl_shm_destroy(dri2_dpy->wl_shm);
817 wl_registry_destroy(dri2_dpy->wl_registry);
818 wl_event_queue_destroy(dri2_dpy->wl_queue);
819 if (dri2_dpy->own_device) {
820 wl_display_disconnect(dri2_dpy->wl_dpy);
821 }
822 break;
823 #endif
824 default:
825 break;
826 }
827
828 /* The drm platform does not create the screen/driver_configs but reuses
829 * the ones from the gbm device. As such the gbm itself is responsible
830 * for the cleanup.
831 */
832 if (disp->Platform != _EGL_PLATFORM_DRM) {
833 for (i = 0; dri2_dpy->driver_configs[i]; i++)
834 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
835 free(dri2_dpy->driver_configs);
836 }
837 free(dri2_dpy);
838 disp->DriverData = NULL;
839
840 return EGL_TRUE;
841 }
842
843 /**
844 * Set the error code after a call to
845 * dri2_egl_display::dri2::createContextAttribs.
846 */
847 static void
848 dri2_create_context_attribs_error(int dri_error)
849 {
850 EGLint egl_error;
851
852 switch (dri_error) {
853 case __DRI_CTX_ERROR_SUCCESS:
854 return;
855
856 case __DRI_CTX_ERROR_NO_MEMORY:
857 egl_error = EGL_BAD_ALLOC;
858 break;
859
860 /* From the EGL_KHR_create_context spec, section "Errors":
861 *
862 * * If <config> does not support a client API context compatible
863 * with the requested API major and minor version, [...] context flags,
864 * and context reset notification behavior (for client API types where
865 * these attributes are supported), then an EGL_BAD_MATCH error is
866 * generated.
867 *
868 * * If an OpenGL ES context is requested and the values for
869 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
870 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
871 * is not defined, than an EGL_BAD_MATCH error is generated.
872 *
873 * * If an OpenGL context is requested, the requested version is
874 * greater than 3.2, and the value for attribute
875 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
876 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
877 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
878 * one of these bits set; or if the implementation does not support
879 * the requested profile, then an EGL_BAD_MATCH error is generated.
880 */
881 case __DRI_CTX_ERROR_BAD_API:
882 case __DRI_CTX_ERROR_BAD_VERSION:
883 case __DRI_CTX_ERROR_BAD_FLAG:
884 egl_error = EGL_BAD_MATCH;
885 break;
886
887 /* From the EGL_KHR_create_context spec, section "Errors":
888 *
889 * * If an attribute name or attribute value in <attrib_list> is not
890 * recognized (including unrecognized bits in bitmask attributes),
891 * then an EGL_BAD_ATTRIBUTE error is generated."
892 */
893 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
894 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
895 egl_error = EGL_BAD_ATTRIBUTE;
896 break;
897
898 default:
899 assert(0);
900 egl_error = EGL_BAD_MATCH;
901 break;
902 }
903
904 _eglError(egl_error, "dri2_create_context");
905 }
906
907 static bool
908 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
909 struct dri2_egl_display *dri2_dpy,
910 uint32_t *ctx_attribs,
911 unsigned *num_attribs)
912 {
913 int pos = 0;
914
915 assert(*num_attribs >= 8);
916
917 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
918 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
919 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
920 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
921
922 if (dri2_ctx->base.Flags != 0) {
923 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
924 * extension, don't even try to send it the robust-access flag.
925 * It may explode. Instead, generate the required EGL error here.
926 */
927 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
928 && !dri2_dpy->robustness) {
929 _eglError(EGL_BAD_MATCH, "eglCreateContext");
930 return false;
931 }
932
933 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
934 ctx_attribs[pos++] = dri2_ctx->base.Flags;
935 }
936
937 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
938 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
939 * extension, don't even try to send it a reset strategy. It may
940 * explode. Instead, generate the required EGL error here.
941 */
942 if (!dri2_dpy->robustness) {
943 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
944 return false;
945 }
946
947 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
948 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
949 }
950
951 *num_attribs = pos;
952
953 return true;
954 }
955
956 /**
957 * Called via eglCreateContext(), drv->API.CreateContext().
958 */
959 static _EGLContext *
960 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
961 _EGLContext *share_list, const EGLint *attrib_list)
962 {
963 struct dri2_egl_context *dri2_ctx;
964 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
965 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
966 __DRIcontext *shared =
967 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
968 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
969 const __DRIconfig *dri_config;
970 int api;
971
972 (void) drv;
973
974 dri2_ctx = malloc(sizeof *dri2_ctx);
975 if (!dri2_ctx) {
976 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
977 return NULL;
978 }
979
980 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
981 goto cleanup;
982
983 switch (dri2_ctx->base.ClientAPI) {
984 case EGL_OPENGL_ES_API:
985 switch (dri2_ctx->base.ClientMajorVersion) {
986 case 1:
987 api = __DRI_API_GLES;
988 break;
989 case 2:
990 api = __DRI_API_GLES2;
991 break;
992 case 3:
993 api = __DRI_API_GLES3;
994 break;
995 default:
996 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
997 free(dri2_ctx);
998 return NULL;
999 }
1000 break;
1001 case EGL_OPENGL_API:
1002 if ((dri2_ctx->base.ClientMajorVersion >= 4
1003 || (dri2_ctx->base.ClientMajorVersion == 3
1004 && dri2_ctx->base.ClientMinorVersion >= 2))
1005 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1006 api = __DRI_API_OPENGL_CORE;
1007 else
1008 api = __DRI_API_OPENGL;
1009 break;
1010 default:
1011 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1012 free(dri2_ctx);
1013 return NULL;
1014 }
1015
1016 if (conf != NULL) {
1017 /* The config chosen here isn't necessarily
1018 * used for surfaces later.
1019 * A pixmap surface will use the single config.
1020 * This opportunity depends on disabling the
1021 * doubleBufferMode check in
1022 * src/mesa/main/context.c:check_compatible()
1023 */
1024 if (dri2_config->dri_double_config)
1025 dri_config = dri2_config->dri_double_config;
1026 else
1027 dri_config = dri2_config->dri_single_config;
1028
1029 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1030 * makes sure the back buffer will always be used.
1031 */
1032 if (conf->SurfaceType & EGL_WINDOW_BIT)
1033 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1034 }
1035 else
1036 dri_config = NULL;
1037
1038 if (dri2_dpy->dri2) {
1039 if (dri2_dpy->dri2->base.version >= 3) {
1040 unsigned error;
1041 unsigned num_attribs = 8;
1042 uint32_t ctx_attribs[8];
1043
1044 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1045 &num_attribs))
1046 goto cleanup;
1047
1048 dri2_ctx->dri_context =
1049 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1050 api,
1051 dri_config,
1052 shared,
1053 num_attribs / 2,
1054 ctx_attribs,
1055 & error,
1056 dri2_ctx);
1057 dri2_create_context_attribs_error(error);
1058 } else {
1059 dri2_ctx->dri_context =
1060 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1061 api,
1062 dri_config,
1063 shared,
1064 dri2_ctx);
1065 }
1066 } else {
1067 assert(dri2_dpy->swrast);
1068 if (dri2_dpy->swrast->base.version >= 3) {
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->swrast->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 {
1088 dri2_ctx->dri_context =
1089 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1090 api,
1091 dri_config,
1092 shared,
1093 dri2_ctx);
1094 }
1095 }
1096
1097 if (!dri2_ctx->dri_context)
1098 goto cleanup;
1099
1100 return &dri2_ctx->base;
1101
1102 cleanup:
1103 free(dri2_ctx);
1104 return NULL;
1105 }
1106
1107 /**
1108 * Called via eglDestroyContext(), drv->API.DestroyContext().
1109 */
1110 static EGLBoolean
1111 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1112 {
1113 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1114 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1115
1116 if (_eglPutContext(ctx)) {
1117 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1118 free(dri2_ctx);
1119 }
1120
1121 return EGL_TRUE;
1122 }
1123
1124 /**
1125 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1126 */
1127 static EGLBoolean
1128 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1129 _EGLSurface *rsurf, _EGLContext *ctx)
1130 {
1131 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1132 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1133 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
1134 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
1135 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1136 _EGLContext *old_ctx;
1137 _EGLSurface *old_dsurf, *old_rsurf;
1138 __DRIdrawable *ddraw, *rdraw;
1139 __DRIcontext *cctx;
1140
1141 /* make new bindings */
1142 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1143 return EGL_FALSE;
1144
1145 /* flush before context switch */
1146 if (old_ctx && dri2_drv->glFlush)
1147 dri2_drv->glFlush();
1148
1149 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
1150 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
1151 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1152
1153 if (old_ctx) {
1154 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1155 dri2_dpy->core->unbindContext(old_cctx);
1156 }
1157
1158 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
1159 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1160 if (old_dsurf)
1161 drv->API.DestroySurface(drv, disp, old_dsurf);
1162 if (old_rsurf)
1163 drv->API.DestroySurface(drv, disp, old_rsurf);
1164 if (old_ctx)
1165 drv->API.DestroyContext(drv, disp, old_ctx);
1166
1167 return EGL_TRUE;
1168 } else {
1169 /* undo the previous _eglBindContext */
1170 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
1171 assert(&dri2_ctx->base == ctx &&
1172 &dri2_dsurf->base == dsurf &&
1173 &dri2_rsurf->base == rsurf);
1174
1175 _eglPutSurface(dsurf);
1176 _eglPutSurface(rsurf);
1177 _eglPutContext(ctx);
1178
1179 _eglPutSurface(old_dsurf);
1180 _eglPutSurface(old_rsurf);
1181 _eglPutContext(old_ctx);
1182
1183 return EGL_FALSE;
1184 }
1185 }
1186
1187 /*
1188 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1189 */
1190 static _EGLProc
1191 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1192 {
1193 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1194
1195 return dri2_drv->get_proc_address(procname);
1196 }
1197
1198 static _EGLSurface*
1199 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1200 _EGLConfig *conf, void *native_window,
1201 const EGLint *attrib_list)
1202 {
1203 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1204 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1205 attrib_list);
1206 }
1207
1208 static _EGLSurface*
1209 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1210 _EGLConfig *conf, void *native_pixmap,
1211 const EGLint *attrib_list)
1212 {
1213 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1214 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1215 attrib_list);
1216 }
1217
1218 static _EGLSurface*
1219 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1220 _EGLConfig *conf, const EGLint *attrib_list)
1221 {
1222 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1223 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1224 }
1225
1226 static EGLBoolean
1227 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1228 {
1229 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1230 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1231 }
1232
1233 static EGLBoolean
1234 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1235 EGLint interval)
1236 {
1237 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1238 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1239 }
1240
1241 /**
1242 * Asks the client API to flush any rendering to the drawable so that we can
1243 * do our swapbuffers.
1244 */
1245 void
1246 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1247 {
1248 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1249 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1250
1251 if (dri2_dpy->flush) {
1252 if (dri2_dpy->flush->base.version >= 4) {
1253 /* We know there's a current context because:
1254 *
1255 * "If surface is not bound to the calling thread’s current
1256 * context, an EGL_BAD_SURFACE error is generated."
1257 */
1258 _EGLContext *ctx = _eglGetCurrentContext();
1259 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1260
1261 /* From the EGL 1.4 spec (page 52):
1262 *
1263 * "The contents of ancillary buffers are always undefined
1264 * after calling eglSwapBuffers."
1265 */
1266 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1267 dri2_surf->dri_drawable,
1268 __DRI2_FLUSH_DRAWABLE |
1269 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1270 __DRI2_THROTTLE_SWAPBUFFER);
1271 } else {
1272 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1273 }
1274 }
1275 }
1276
1277 static EGLBoolean
1278 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1279 {
1280 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1281 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1282 }
1283
1284 static EGLBoolean
1285 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1286 _EGLSurface *surf,
1287 const EGLint *rects, EGLint n_rects)
1288 {
1289 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1290 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1291 rects, n_rects);
1292 }
1293
1294 static EGLBoolean
1295 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1296 EGLint numRects, const EGLint *rects)
1297 {
1298 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1299 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1300 }
1301
1302 static EGLBoolean
1303 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1304 EGLint x, EGLint y, EGLint width, EGLint height)
1305 {
1306 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1307 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1308 }
1309
1310 static EGLBoolean
1311 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1312 void *native_pixmap_target)
1313 {
1314 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1315 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1316 }
1317
1318 static EGLint
1319 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1320 {
1321 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1322 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1323 }
1324
1325 static EGLBoolean
1326 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1327 {
1328 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1329 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1330
1331 (void) drv;
1332
1333 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1334 * we need to copy fake to real here.*/
1335
1336 if (dri2_dpy->flush != NULL)
1337 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1338
1339 return EGL_TRUE;
1340 }
1341
1342 static EGLBoolean
1343 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1344 {
1345 (void) drv;
1346 (void) disp;
1347
1348 if (engine != EGL_CORE_NATIVE_ENGINE)
1349 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1350 /* glXWaitX(); */
1351
1352 return EGL_TRUE;
1353 }
1354
1355 static EGLBoolean
1356 dri2_bind_tex_image(_EGLDriver *drv,
1357 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1358 {
1359 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1360 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1361 struct dri2_egl_context *dri2_ctx;
1362 _EGLContext *ctx;
1363 GLint format, target;
1364
1365 ctx = _eglGetCurrentContext();
1366 dri2_ctx = dri2_egl_context(ctx);
1367
1368 if (!_eglBindTexImage(drv, disp, surf, buffer))
1369 return EGL_FALSE;
1370
1371 switch (dri2_surf->base.TextureFormat) {
1372 case EGL_TEXTURE_RGB:
1373 format = __DRI_TEXTURE_FORMAT_RGB;
1374 break;
1375 case EGL_TEXTURE_RGBA:
1376 format = __DRI_TEXTURE_FORMAT_RGBA;
1377 break;
1378 default:
1379 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1380 format = __DRI_TEXTURE_FORMAT_RGBA;
1381 }
1382
1383 switch (dri2_surf->base.TextureTarget) {
1384 case EGL_TEXTURE_2D:
1385 target = GL_TEXTURE_2D;
1386 break;
1387 default:
1388 target = GL_TEXTURE_2D;
1389 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1390 }
1391
1392 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1393 target, format,
1394 dri2_surf->dri_drawable);
1395
1396 return EGL_TRUE;
1397 }
1398
1399 static EGLBoolean
1400 dri2_release_tex_image(_EGLDriver *drv,
1401 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1402 {
1403 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1404 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1405 struct dri2_egl_context *dri2_ctx;
1406 _EGLContext *ctx;
1407 GLint target;
1408
1409 ctx = _eglGetCurrentContext();
1410 dri2_ctx = dri2_egl_context(ctx);
1411
1412 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1413 return EGL_FALSE;
1414
1415 switch (dri2_surf->base.TextureTarget) {
1416 case EGL_TEXTURE_2D:
1417 target = GL_TEXTURE_2D;
1418 break;
1419 default:
1420 assert(0);
1421 }
1422
1423 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1424 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1425 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1426 target,
1427 dri2_surf->dri_drawable);
1428 }
1429
1430 return EGL_TRUE;
1431 }
1432
1433 static _EGLImage*
1434 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1435 EGLenum target, EGLClientBuffer buffer,
1436 const EGLint *attr_list)
1437 {
1438 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1439 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1440 attr_list);
1441 }
1442
1443 static _EGLImage *
1444 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1445 {
1446 struct dri2_egl_image *dri2_img;
1447
1448 if (dri_image == NULL) {
1449 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1450 return NULL;
1451 }
1452
1453 dri2_img = malloc(sizeof *dri2_img);
1454 if (!dri2_img) {
1455 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1456 return NULL;
1457 }
1458
1459 if (!_eglInitImage(&dri2_img->base, disp)) {
1460 free(dri2_img);
1461 return NULL;
1462 }
1463
1464 dri2_img->dri_image = dri_image;
1465
1466 return &dri2_img->base;
1467 }
1468
1469 static _EGLImage *
1470 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1471 EGLClientBuffer buffer,
1472 const EGLint *attr_list)
1473 {
1474 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1475 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1476 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1477 __DRIimage *dri_image;
1478
1479 if (renderbuffer == 0) {
1480 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1481 return EGL_NO_IMAGE_KHR;
1482 }
1483
1484 dri_image =
1485 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1486 renderbuffer, NULL);
1487
1488 return dri2_create_image_from_dri(disp, dri_image);
1489 }
1490
1491 #ifdef HAVE_WAYLAND_PLATFORM
1492
1493 /* This structure describes how a wl_buffer maps to one or more
1494 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1495 * offsets and strides of the planes in the buffer. This table maps a
1496 * wl_drm format code to a description of the planes in the buffer
1497 * that lets us create a __DRIimage for each of the planes. */
1498
1499 static const struct wl_drm_components_descriptor {
1500 uint32_t dri_components;
1501 EGLint components;
1502 int nplanes;
1503 } wl_drm_components[] = {
1504 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1505 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1506 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1507 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1508 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1509 };
1510
1511 static _EGLImage *
1512 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1513 EGLClientBuffer _buffer,
1514 const EGLint *attr_list)
1515 {
1516 struct wl_drm_buffer *buffer;
1517 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1518 const struct wl_drm_components_descriptor *f;
1519 __DRIimage *dri_image;
1520 _EGLImageAttribs attrs;
1521 EGLint err;
1522 int32_t plane;
1523
1524 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1525 (struct wl_resource *) _buffer);
1526 if (!buffer)
1527 return NULL;
1528
1529 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1530 plane = attrs.PlaneWL;
1531 if (err != EGL_SUCCESS) {
1532 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1533 return NULL;
1534 }
1535
1536 f = buffer->driver_format;
1537 if (plane < 0 || plane >= f->nplanes) {
1538 _eglError(EGL_BAD_PARAMETER,
1539 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1540 return NULL;
1541 }
1542
1543 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1544
1545 if (dri_image == NULL) {
1546 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1547 return NULL;
1548 }
1549
1550 return dri2_create_image_from_dri(disp, dri_image);
1551 }
1552 #endif
1553
1554 static EGLBoolean
1555 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1556 EGLuint64KHR *ust, EGLuint64KHR *msc,
1557 EGLuint64KHR *sbc)
1558 {
1559 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1560 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1561 }
1562
1563 /**
1564 * Set the error code after a call to
1565 * dri2_egl_image::dri_image::createImageFromTexture.
1566 */
1567 static void
1568 dri2_create_image_khr_texture_error(int dri_error)
1569 {
1570 EGLint egl_error;
1571
1572 switch (dri_error) {
1573 case __DRI_IMAGE_ERROR_SUCCESS:
1574 return;
1575
1576 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1577 egl_error = EGL_BAD_ALLOC;
1578 break;
1579
1580 case __DRI_IMAGE_ERROR_BAD_MATCH:
1581 egl_error = EGL_BAD_MATCH;
1582 break;
1583
1584 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1585 egl_error = EGL_BAD_PARAMETER;
1586 break;
1587
1588 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1589 egl_error = EGL_BAD_ACCESS;
1590 break;
1591
1592 default:
1593 assert(0);
1594 egl_error = EGL_BAD_MATCH;
1595 break;
1596 }
1597
1598 _eglError(egl_error, "dri2_create_image_khr_texture");
1599 }
1600
1601 static _EGLImage *
1602 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1603 EGLenum target,
1604 EGLClientBuffer buffer,
1605 const EGLint *attr_list)
1606 {
1607 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1608 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1609 struct dri2_egl_image *dri2_img;
1610 GLuint texture = (GLuint) (uintptr_t) buffer;
1611 _EGLImageAttribs attrs;
1612 GLuint depth;
1613 GLenum gl_target;
1614 unsigned error;
1615
1616 if (texture == 0) {
1617 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1618 return EGL_NO_IMAGE_KHR;
1619 }
1620
1621 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1622 return EGL_NO_IMAGE_KHR;
1623
1624 switch (target) {
1625 case EGL_GL_TEXTURE_2D_KHR:
1626 depth = 0;
1627 gl_target = GL_TEXTURE_2D;
1628 break;
1629 case EGL_GL_TEXTURE_3D_KHR:
1630 if (disp->Extensions.KHR_gl_texture_3D_image) {
1631 depth = attrs.GLTextureZOffset;
1632 gl_target = GL_TEXTURE_3D;
1633 break;
1634 }
1635 else {
1636 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1637 return EGL_NO_IMAGE_KHR;
1638 }
1639 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1640 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1641 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1642 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1643 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1644 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1645 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1646 gl_target = GL_TEXTURE_CUBE_MAP;
1647 break;
1648 default:
1649 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1650 return EGL_NO_IMAGE_KHR;
1651 }
1652
1653 dri2_img = malloc(sizeof *dri2_img);
1654 if (!dri2_img) {
1655 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1656 return EGL_NO_IMAGE_KHR;
1657 }
1658
1659 if (!_eglInitImage(&dri2_img->base, disp)) {
1660 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1661 free(dri2_img);
1662 return EGL_NO_IMAGE_KHR;
1663 }
1664
1665 dri2_img->dri_image =
1666 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1667 gl_target,
1668 texture,
1669 depth,
1670 attrs.GLTextureLevel,
1671 &error,
1672 dri2_img);
1673 dri2_create_image_khr_texture_error(error);
1674
1675 if (!dri2_img->dri_image) {
1676 free(dri2_img);
1677 return EGL_NO_IMAGE_KHR;
1678 }
1679 return &dri2_img->base;
1680 }
1681
1682 static struct wl_buffer*
1683 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1684 _EGLImage *img)
1685 {
1686 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1687 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1688 }
1689
1690 #ifdef HAVE_LIBDRM
1691 static _EGLImage *
1692 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1693 EGLClientBuffer buffer, const EGLint *attr_list)
1694 {
1695 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1696 EGLint format, name, pitch, err;
1697 _EGLImageAttribs attrs;
1698 __DRIimage *dri_image;
1699
1700 name = (EGLint) (uintptr_t) buffer;
1701
1702 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1703 if (err != EGL_SUCCESS)
1704 return NULL;
1705
1706 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1707 attrs.DRMBufferStrideMESA <= 0) {
1708 _eglError(EGL_BAD_PARAMETER,
1709 "bad width, height or stride");
1710 return NULL;
1711 }
1712
1713 switch (attrs.DRMBufferFormatMESA) {
1714 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1715 format = __DRI_IMAGE_FORMAT_ARGB8888;
1716 pitch = attrs.DRMBufferStrideMESA;
1717 break;
1718 default:
1719 _eglError(EGL_BAD_PARAMETER,
1720 "dri2_create_image_khr: unsupported pixmap depth");
1721 return NULL;
1722 }
1723
1724 dri_image =
1725 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1726 attrs.Width,
1727 attrs.Height,
1728 format,
1729 name,
1730 pitch,
1731 NULL);
1732
1733 return dri2_create_image_from_dri(disp, dri_image);
1734 }
1735
1736 static EGLBoolean
1737 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1738 {
1739 unsigned i;
1740
1741 /**
1742 * The spec says:
1743 *
1744 * "Required attributes and their values are as follows:
1745 *
1746 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1747 *
1748 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1749 * by drm_fourcc.h and used as the pixel_format parameter of the
1750 * drm_mode_fb_cmd2 ioctl."
1751 *
1752 * and
1753 *
1754 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1755 * incomplete, EGL_BAD_PARAMETER is generated."
1756 */
1757 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1758 !attrs->DMABufFourCC.IsPresent) {
1759 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1760 return EGL_FALSE;
1761 }
1762
1763 /**
1764 * Also:
1765 *
1766 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1767 * specified for a plane's pitch or offset isn't supported by EGL,
1768 * EGL_BAD_ACCESS is generated."
1769 */
1770 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1771 if (attrs->DMABufPlanePitches[i].IsPresent &&
1772 attrs->DMABufPlanePitches[i].Value <= 0) {
1773 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1774 return EGL_FALSE;
1775 }
1776 }
1777
1778 return EGL_TRUE;
1779 }
1780
1781 /* Returns the total number of file descriptors. Zero indicates an error. */
1782 static unsigned
1783 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1784 {
1785 unsigned i, plane_n;
1786
1787 switch (attrs->DMABufFourCC.Value) {
1788 case DRM_FORMAT_R8:
1789 case DRM_FORMAT_RG88:
1790 case DRM_FORMAT_GR88:
1791 case DRM_FORMAT_RGB332:
1792 case DRM_FORMAT_BGR233:
1793 case DRM_FORMAT_XRGB4444:
1794 case DRM_FORMAT_XBGR4444:
1795 case DRM_FORMAT_RGBX4444:
1796 case DRM_FORMAT_BGRX4444:
1797 case DRM_FORMAT_ARGB4444:
1798 case DRM_FORMAT_ABGR4444:
1799 case DRM_FORMAT_RGBA4444:
1800 case DRM_FORMAT_BGRA4444:
1801 case DRM_FORMAT_XRGB1555:
1802 case DRM_FORMAT_XBGR1555:
1803 case DRM_FORMAT_RGBX5551:
1804 case DRM_FORMAT_BGRX5551:
1805 case DRM_FORMAT_ARGB1555:
1806 case DRM_FORMAT_ABGR1555:
1807 case DRM_FORMAT_RGBA5551:
1808 case DRM_FORMAT_BGRA5551:
1809 case DRM_FORMAT_RGB565:
1810 case DRM_FORMAT_BGR565:
1811 case DRM_FORMAT_RGB888:
1812 case DRM_FORMAT_BGR888:
1813 case DRM_FORMAT_XRGB8888:
1814 case DRM_FORMAT_XBGR8888:
1815 case DRM_FORMAT_RGBX8888:
1816 case DRM_FORMAT_BGRX8888:
1817 case DRM_FORMAT_ARGB8888:
1818 case DRM_FORMAT_ABGR8888:
1819 case DRM_FORMAT_RGBA8888:
1820 case DRM_FORMAT_BGRA8888:
1821 case DRM_FORMAT_XRGB2101010:
1822 case DRM_FORMAT_XBGR2101010:
1823 case DRM_FORMAT_RGBX1010102:
1824 case DRM_FORMAT_BGRX1010102:
1825 case DRM_FORMAT_ARGB2101010:
1826 case DRM_FORMAT_ABGR2101010:
1827 case DRM_FORMAT_RGBA1010102:
1828 case DRM_FORMAT_BGRA1010102:
1829 case DRM_FORMAT_YUYV:
1830 case DRM_FORMAT_YVYU:
1831 case DRM_FORMAT_UYVY:
1832 case DRM_FORMAT_VYUY:
1833 plane_n = 1;
1834 break;
1835 case DRM_FORMAT_NV12:
1836 case DRM_FORMAT_NV21:
1837 case DRM_FORMAT_NV16:
1838 case DRM_FORMAT_NV61:
1839 plane_n = 2;
1840 break;
1841 case DRM_FORMAT_YUV410:
1842 case DRM_FORMAT_YVU410:
1843 case DRM_FORMAT_YUV411:
1844 case DRM_FORMAT_YVU411:
1845 case DRM_FORMAT_YUV420:
1846 case DRM_FORMAT_YVU420:
1847 case DRM_FORMAT_YUV422:
1848 case DRM_FORMAT_YVU422:
1849 case DRM_FORMAT_YUV444:
1850 case DRM_FORMAT_YVU444:
1851 plane_n = 3;
1852 break;
1853 default:
1854 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1855 return 0;
1856 }
1857
1858 /**
1859 * The spec says:
1860 *
1861 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1862 * incomplete, EGL_BAD_PARAMETER is generated."
1863 */
1864 for (i = 0; i < plane_n; ++i) {
1865 if (!attrs->DMABufPlaneFds[i].IsPresent ||
1866 !attrs->DMABufPlaneOffsets[i].IsPresent ||
1867 !attrs->DMABufPlanePitches[i].IsPresent) {
1868 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1869 return 0;
1870 }
1871 }
1872
1873 /**
1874 * The spec also says:
1875 *
1876 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
1877 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
1878 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
1879 * attributes are specified."
1880 */
1881 for (i = plane_n; i < 3; ++i) {
1882 if (attrs->DMABufPlaneFds[i].IsPresent ||
1883 attrs->DMABufPlaneOffsets[i].IsPresent ||
1884 attrs->DMABufPlanePitches[i].IsPresent) {
1885 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
1886 return 0;
1887 }
1888 }
1889
1890 return plane_n;
1891 }
1892
1893 /**
1894 * The spec says:
1895 *
1896 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
1897 * EGL will take a reference to the dma_buf(s) which it will release at any
1898 * time while the EGLDisplay is initialized. It is the responsibility of the
1899 * application to close the dma_buf file descriptors."
1900 *
1901 * Therefore we must never close or otherwise modify the file descriptors.
1902 */
1903 static _EGLImage *
1904 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
1905 EGLClientBuffer buffer, const EGLint *attr_list)
1906 {
1907 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1908 _EGLImage *res;
1909 EGLint err;
1910 _EGLImageAttribs attrs;
1911 __DRIimage *dri_image;
1912 unsigned num_fds;
1913 unsigned i;
1914 int fds[3];
1915 int pitches[3];
1916 int offsets[3];
1917 unsigned error;
1918
1919 /**
1920 * The spec says:
1921 *
1922 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
1923 * error EGL_BAD_PARAMETER is generated."
1924 */
1925 if (buffer != NULL) {
1926 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
1927 return NULL;
1928 }
1929
1930 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1931 if (err != EGL_SUCCESS) {
1932 _eglError(err, "bad attribute");
1933 return NULL;
1934 }
1935
1936 if (!dri2_check_dma_buf_attribs(&attrs))
1937 return NULL;
1938
1939 num_fds = dri2_check_dma_buf_format(&attrs);
1940 if (!num_fds)
1941 return NULL;
1942
1943 for (i = 0; i < num_fds; ++i) {
1944 fds[i] = attrs.DMABufPlaneFds[i].Value;
1945 pitches[i] = attrs.DMABufPlanePitches[i].Value;
1946 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
1947 }
1948
1949 dri_image =
1950 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
1951 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
1952 fds, num_fds, pitches, offsets,
1953 attrs.DMABufYuvColorSpaceHint.Value,
1954 attrs.DMABufSampleRangeHint.Value,
1955 attrs.DMABufChromaHorizontalSiting.Value,
1956 attrs.DMABufChromaVerticalSiting.Value,
1957 &error,
1958 NULL);
1959 dri2_create_image_khr_texture_error(error);
1960
1961 if (!dri_image)
1962 return EGL_NO_IMAGE_KHR;
1963
1964 res = dri2_create_image_from_dri(disp, dri_image);
1965
1966 return res;
1967 }
1968 static _EGLImage *
1969 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1970 const EGLint *attr_list)
1971 {
1972 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1973 struct dri2_egl_image *dri2_img;
1974 _EGLImageAttribs attrs;
1975 unsigned int dri_use, valid_mask;
1976 int format;
1977 EGLint err = EGL_SUCCESS;
1978
1979 (void) drv;
1980
1981 dri2_img = malloc(sizeof *dri2_img);
1982 if (!dri2_img) {
1983 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1984 return EGL_NO_IMAGE_KHR;
1985 }
1986
1987 if (!attr_list) {
1988 err = EGL_BAD_PARAMETER;
1989 goto cleanup_img;
1990 }
1991
1992 if (!_eglInitImage(&dri2_img->base, disp)) {
1993 err = EGL_BAD_PARAMETER;
1994 goto cleanup_img;
1995 }
1996
1997 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1998 if (err != EGL_SUCCESS)
1999 goto cleanup_img;
2000
2001 if (attrs.Width <= 0 || attrs.Height <= 0) {
2002 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2003 attrs.Width, attrs.Height);
2004 goto cleanup_img;
2005 }
2006
2007 switch (attrs.DRMBufferFormatMESA) {
2008 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2009 format = __DRI_IMAGE_FORMAT_ARGB8888;
2010 break;
2011 default:
2012 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2013 attrs.DRMBufferFormatMESA);
2014 goto cleanup_img;
2015 }
2016
2017 valid_mask =
2018 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2019 EGL_DRM_BUFFER_USE_SHARE_MESA |
2020 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2021 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2022 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2023 attrs.DRMBufferUseMESA & ~valid_mask);
2024 goto cleanup_img;
2025 }
2026
2027 dri_use = 0;
2028 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2029 dri_use |= __DRI_IMAGE_USE_SHARE;
2030 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2031 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2032 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2033 dri_use |= __DRI_IMAGE_USE_CURSOR;
2034
2035 dri2_img->dri_image =
2036 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2037 attrs.Width, attrs.Height,
2038 format, dri_use, dri2_img);
2039 if (dri2_img->dri_image == NULL) {
2040 err = EGL_BAD_ALLOC;
2041 goto cleanup_img;
2042 }
2043
2044 return &dri2_img->base;
2045
2046 cleanup_img:
2047 free(dri2_img);
2048 _eglError(err, "dri2_create_drm_image_mesa");
2049
2050 return EGL_NO_IMAGE_KHR;
2051 }
2052
2053 static EGLBoolean
2054 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2055 EGLint *name, EGLint *handle, EGLint *stride)
2056 {
2057 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2058 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2059
2060 (void) drv;
2061
2062 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2063 __DRI_IMAGE_ATTRIB_NAME, name)) {
2064 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2065 return EGL_FALSE;
2066 }
2067
2068 if (handle)
2069 dri2_dpy->image->queryImage(dri2_img->dri_image,
2070 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2071
2072 if (stride)
2073 dri2_dpy->image->queryImage(dri2_img->dri_image,
2074 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2075
2076 return EGL_TRUE;
2077 }
2078
2079 static EGLBoolean
2080 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2081 _EGLImage *img,
2082 EGLint *fourcc, EGLint *nplanes,
2083 EGLuint64KHR *modifiers)
2084 {
2085 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2086 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2087
2088 (void) drv;
2089
2090
2091 if (nplanes)
2092 dri2_dpy->image->queryImage(dri2_img->dri_image,
2093 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2094 if (fourcc)
2095 dri2_dpy->image->queryImage(dri2_img->dri_image,
2096 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2097
2098 if (modifiers)
2099 *modifiers = 0;
2100
2101 return EGL_TRUE;
2102 }
2103
2104 static EGLBoolean
2105 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2106 int *fds, EGLint *strides, EGLint *offsets)
2107 {
2108 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2109 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2110
2111 (void) drv;
2112
2113 /* rework later to provide multiple fds/strides/offsets */
2114 if (fds)
2115 dri2_dpy->image->queryImage(dri2_img->dri_image,
2116 __DRI_IMAGE_ATTRIB_FD, fds);
2117
2118 if (strides)
2119 dri2_dpy->image->queryImage(dri2_img->dri_image,
2120 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2121
2122 if (offsets)
2123 offsets[0] = 0;
2124
2125 return EGL_TRUE;
2126 }
2127
2128 #endif
2129
2130 _EGLImage *
2131 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2132 _EGLContext *ctx, EGLenum target,
2133 EGLClientBuffer buffer, const EGLint *attr_list)
2134 {
2135 (void) drv;
2136
2137 switch (target) {
2138 case EGL_GL_TEXTURE_2D_KHR:
2139 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2140 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2141 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2142 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2143 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2144 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2145 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2146 case EGL_GL_TEXTURE_3D_KHR:
2147 if (disp->Extensions.KHR_gl_texture_3D_image) {
2148 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2149 }
2150 else {
2151 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2152 return EGL_NO_IMAGE_KHR;
2153 }
2154 case EGL_GL_RENDERBUFFER_KHR:
2155 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2156 #ifdef HAVE_LIBDRM
2157 case EGL_DRM_BUFFER_MESA:
2158 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2159 case EGL_LINUX_DMA_BUF_EXT:
2160 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2161 #endif
2162 #ifdef HAVE_WAYLAND_PLATFORM
2163 case EGL_WAYLAND_BUFFER_WL:
2164 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2165 #endif
2166 default:
2167 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2168 return EGL_NO_IMAGE_KHR;
2169 }
2170 }
2171
2172 static EGLBoolean
2173 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2174 {
2175 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2176 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2177
2178 (void) drv;
2179
2180 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2181 free(dri2_img);
2182
2183 return EGL_TRUE;
2184 }
2185
2186 #ifdef HAVE_WAYLAND_PLATFORM
2187
2188 static void
2189 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2190 struct wl_drm_buffer *buffer)
2191 {
2192 _EGLDisplay *disp = user_data;
2193 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2194 __DRIimage *img;
2195 int i, dri_components = 0;
2196
2197 if (fd == -1)
2198 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2199 buffer->width,
2200 buffer->height,
2201 buffer->format,
2202 (int*)&name, 1,
2203 buffer->stride,
2204 buffer->offset,
2205 NULL);
2206 else
2207 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2208 buffer->width,
2209 buffer->height,
2210 buffer->format,
2211 &fd, 1,
2212 buffer->stride,
2213 buffer->offset,
2214 NULL);
2215
2216 if (img == NULL)
2217 return;
2218
2219 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2220
2221 buffer->driver_format = NULL;
2222 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2223 if (wl_drm_components[i].dri_components == dri_components)
2224 buffer->driver_format = &wl_drm_components[i];
2225
2226 if (buffer->driver_format == NULL)
2227 dri2_dpy->image->destroyImage(img);
2228 else
2229 buffer->driver_buffer = img;
2230 }
2231
2232 static void
2233 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2234 {
2235 _EGLDisplay *disp = user_data;
2236 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2237
2238 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2239 }
2240
2241 static struct wayland_drm_callbacks wl_drm_callbacks = {
2242 .authenticate = NULL,
2243 .reference_buffer = dri2_wl_reference_buffer,
2244 .release_buffer = dri2_wl_release_buffer
2245 };
2246
2247 static EGLBoolean
2248 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2249 struct wl_display *wl_dpy)
2250 {
2251 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2252 int flags = 0;
2253 uint64_t cap;
2254
2255 (void) drv;
2256
2257 if (dri2_dpy->wl_server_drm)
2258 return EGL_FALSE;
2259
2260 wl_drm_callbacks.authenticate =
2261 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2262
2263 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2264 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2265 dri2_dpy->image->base.version >= 7 &&
2266 dri2_dpy->image->createImageFromFds != NULL)
2267 flags |= WAYLAND_DRM_PRIME;
2268
2269 dri2_dpy->wl_server_drm =
2270 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2271 &wl_drm_callbacks, disp, flags);
2272
2273 if (!dri2_dpy->wl_server_drm)
2274 return EGL_FALSE;
2275
2276 #ifdef HAVE_DRM_PLATFORM
2277 /* We have to share the wl_drm instance with gbm, so gbm can convert
2278 * wl_buffers to gbm bos. */
2279 if (dri2_dpy->gbm_dri)
2280 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2281 #endif
2282
2283 return EGL_TRUE;
2284 }
2285
2286 static EGLBoolean
2287 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2288 struct wl_display *wl_dpy)
2289 {
2290 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2291
2292 (void) drv;
2293
2294 if (!dri2_dpy->wl_server_drm)
2295 return EGL_FALSE;
2296
2297 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2298 dri2_dpy->wl_server_drm = NULL;
2299
2300 return EGL_TRUE;
2301 }
2302
2303 static EGLBoolean
2304 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2305 struct wl_resource *buffer_resource,
2306 EGLint attribute, EGLint *value)
2307 {
2308 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2309 struct wl_drm_buffer *buffer;
2310 const struct wl_drm_components_descriptor *format;
2311
2312 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2313 if (!buffer)
2314 return EGL_FALSE;
2315
2316 format = buffer->driver_format;
2317 switch (attribute) {
2318 case EGL_TEXTURE_FORMAT:
2319 *value = format->components;
2320 return EGL_TRUE;
2321 case EGL_WIDTH:
2322 *value = buffer->width;
2323 return EGL_TRUE;
2324 case EGL_HEIGHT:
2325 *value = buffer->height;
2326 return EGL_TRUE;
2327 }
2328
2329 return EGL_FALSE;
2330 }
2331 #endif
2332
2333 static void
2334 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2335 {
2336 p_atomic_inc(&sync->refcount);
2337 }
2338
2339 static void
2340 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2341 struct dri2_egl_sync *dri2_sync)
2342 {
2343 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2344 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2345 free(dri2_sync);
2346 }
2347 }
2348
2349 static _EGLSync *
2350 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2351 EGLenum type, const EGLint *attrib_list,
2352 const EGLAttrib *attrib_list64)
2353 {
2354 _EGLContext *ctx = _eglGetCurrentContext();
2355 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2356 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2357 struct dri2_egl_sync *dri2_sync;
2358
2359 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2360 if (!dri2_sync) {
2361 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2362 return NULL;
2363 }
2364
2365 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2366 attrib_list64)) {
2367 free(dri2_sync);
2368 return NULL;
2369 }
2370
2371 switch (type) {
2372 case EGL_SYNC_FENCE_KHR:
2373 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2374 if (!dri2_sync->fence) {
2375 /* Why did it fail? DRI doesn't return an error code, so we emit
2376 * a generic EGL error that doesn't communicate user error.
2377 */
2378 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2379 free(dri2_sync);
2380 return NULL;
2381 }
2382 break;
2383
2384 case EGL_SYNC_CL_EVENT_KHR:
2385 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2386 dri2_dpy->dri_screen,
2387 dri2_sync->base.CLEvent);
2388 /* this can only happen if the cl_event passed in is invalid. */
2389 if (!dri2_sync->fence) {
2390 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2391 free(dri2_sync);
2392 return NULL;
2393 }
2394
2395 /* the initial status must be "signaled" if the cl_event is signaled */
2396 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2397 dri2_sync->fence, 0, 0))
2398 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2399 break;
2400 }
2401
2402 p_atomic_set(&dri2_sync->refcount, 1);
2403 return &dri2_sync->base;
2404 }
2405
2406 static EGLBoolean
2407 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2408 {
2409 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2410 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2411
2412 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2413 return EGL_TRUE;
2414 }
2415
2416 static EGLint
2417 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2418 EGLint flags, EGLTime timeout)
2419 {
2420 _EGLContext *ctx = _eglGetCurrentContext();
2421 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2422 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2423 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2424 unsigned wait_flags = 0;
2425 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2426
2427 if (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2428 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2429
2430 /* the sync object should take a reference while waiting */
2431 dri2_egl_ref_sync(dri2_sync);
2432
2433 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2434 dri2_sync->fence, wait_flags,
2435 timeout))
2436 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2437 else
2438 ret = EGL_TIMEOUT_EXPIRED_KHR;
2439
2440 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2441 return ret;
2442 }
2443
2444 static EGLint
2445 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2446 {
2447 _EGLContext *ctx = _eglGetCurrentContext();
2448 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2449 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2450 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2451
2452 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2453 dri2_sync->fence, 0);
2454 return EGL_TRUE;
2455 }
2456
2457 static void
2458 dri2_unload(_EGLDriver *drv)
2459 {
2460 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2461
2462 if (dri2_drv->handle)
2463 dlclose(dri2_drv->handle);
2464 free(dri2_drv);
2465 }
2466
2467 static EGLBoolean
2468 dri2_load(_EGLDriver *drv)
2469 {
2470 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2471 #ifdef HAVE_ANDROID_PLATFORM
2472 const char *libname = "libglapi.so";
2473 #elif defined(__APPLE__)
2474 const char *libname = "libglapi.0.dylib";
2475 #else
2476 const char *libname = "libglapi.so.0";
2477 #endif
2478 void *handle;
2479
2480 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2481 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2482 if (handle) {
2483 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2484 dlsym(handle, "_glapi_get_proc_address");
2485 if (!dri2_drv->get_proc_address || !libname) {
2486 /* no need to keep a reference */
2487 dlclose(handle);
2488 handle = NULL;
2489 }
2490 }
2491
2492 /* if glapi is not available, loading DRI drivers will fail */
2493 if (!dri2_drv->get_proc_address) {
2494 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2495 return EGL_FALSE;
2496 }
2497
2498 dri2_drv->glFlush = (void (*)(void))
2499 dri2_drv->get_proc_address("glFlush");
2500
2501 dri2_drv->handle = handle;
2502
2503 return EGL_TRUE;
2504 }
2505
2506 /**
2507 * This is the main entrypoint into the driver, called by libEGL.
2508 * Create a new _EGLDriver object and init its dispatch table.
2509 */
2510 _EGLDriver *
2511 _eglBuiltInDriverDRI2(const char *args)
2512 {
2513 struct dri2_egl_driver *dri2_drv;
2514
2515 (void) args;
2516
2517 dri2_drv = calloc(1, sizeof *dri2_drv);
2518 if (!dri2_drv)
2519 return NULL;
2520
2521 if (!dri2_load(&dri2_drv->base)) {
2522 free(dri2_drv);
2523 return NULL;
2524 }
2525
2526 _eglInitDriverFallbacks(&dri2_drv->base);
2527 dri2_drv->base.API.Initialize = dri2_initialize;
2528 dri2_drv->base.API.Terminate = dri2_terminate;
2529 dri2_drv->base.API.CreateContext = dri2_create_context;
2530 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2531 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2532 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2533 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2534 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2535 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2536 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2537 dri2_drv->base.API.WaitClient = dri2_wait_client;
2538 dri2_drv->base.API.WaitNative = dri2_wait_native;
2539 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2540 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2541 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2542 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2543 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2544 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2545 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2546 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2547 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2548 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2549 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2550 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2551 #ifdef HAVE_LIBDRM
2552 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2553 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2554 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2555 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2556 #endif
2557 #ifdef HAVE_WAYLAND_PLATFORM
2558 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2559 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2560 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2561 #endif
2562 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2563 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2564 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2565 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2566 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2567
2568 dri2_drv->base.Name = "DRI2";
2569 dri2_drv->base.Unload = dri2_unload;
2570
2571 return &dri2_drv->base;
2572 }