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