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[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 #include <stdlib.h>
29 #include <string.h>
30 #include <stdio.h>
31 #include <limits.h>
32 #include <dlfcn.h>
33 #include <fcntl.h>
34 #include <errno.h>
35 #include <unistd.h>
36 #include <xf86drm.h>
37 #include <GL/gl.h>
38 #include <GL/internal/dri_interface.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41
42 #include "egl_dri2.h"
43
44 const __DRIuseInvalidateExtension use_invalidate = {
45 { __DRI_USE_INVALIDATE, 1 }
46 };
47
48 EGLint dri2_to_egl_attribute_map[] = {
49 0,
50 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
51 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
52 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
53 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
54 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
55 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
56 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
57 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
58 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
59 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
60 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
61 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
62 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
63 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
64 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
65 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
66 0, /* __DRI_ATTRIB_RENDER_TYPE, */
67 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
68 0, /* __DRI_ATTRIB_CONFORMANT */
69 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
70 0, /* __DRI_ATTRIB_STEREO */
71 0, /* __DRI_ATTRIB_AUX_BUFFERS */
72 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
73 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
74 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
75 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
76 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
77 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
78 0, /* __DRI_ATTRIB_FLOAT_MODE */
79 0, /* __DRI_ATTRIB_RED_MASK */
80 0, /* __DRI_ATTRIB_GREEN_MASK */
81 0, /* __DRI_ATTRIB_BLUE_MASK */
82 0, /* __DRI_ATTRIB_ALPHA_MASK */
83 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
84 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
85 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
86 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
87 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
88 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
89 0, /* __DRI_ATTRIB_SWAP_METHOD */
90 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
91 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
92 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
93 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
94 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
95 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
96 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
97 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
98 };
99
100 static EGLBoolean
101 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
102 {
103 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
104 return EGL_FALSE;
105
106 if (!_eglMatchConfig(conf, criteria))
107 return EGL_FALSE;
108
109 return EGL_TRUE;
110 }
111
112 struct dri2_egl_config *
113 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
114 int depth, EGLint surface_type, const EGLint *attr_list,
115 const unsigned int *rgba_masks)
116 {
117 struct dri2_egl_config *conf;
118 struct dri2_egl_display *dri2_dpy;
119 _EGLConfig base;
120 unsigned int attrib, value, double_buffer;
121 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
122 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
123 _EGLConfig *matching_config;
124 EGLint num_configs = 0;
125 EGLint config_id;
126 int i;
127
128 dri2_dpy = disp->DriverData;
129 _eglInitConfig(&base, disp, id);
130
131 i = 0;
132 double_buffer = 0;
133 bind_to_texture_rgb = 0;
134 bind_to_texture_rgba = 0;
135
136 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
137 switch (attrib) {
138 case __DRI_ATTRIB_RENDER_TYPE:
139 if (value & __DRI_ATTRIB_RGBA_BIT)
140 value = EGL_RGB_BUFFER;
141 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
142 value = EGL_LUMINANCE_BUFFER;
143 else
144 /* not valid */;
145 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
146 break;
147
148 case __DRI_ATTRIB_CONFIG_CAVEAT:
149 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
150 value = EGL_NON_CONFORMANT_CONFIG;
151 else if (value & __DRI_ATTRIB_SLOW_BIT)
152 value = EGL_SLOW_CONFIG;
153 else
154 value = EGL_NONE;
155 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
156 break;
157
158 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
159 bind_to_texture_rgb = value;
160 break;
161
162 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
163 bind_to_texture_rgba = value;
164 break;
165
166 case __DRI_ATTRIB_DOUBLE_BUFFER:
167 double_buffer = value;
168 break;
169
170 case __DRI_ATTRIB_RED_MASK:
171 dri_masks[0] = value;
172 break;
173
174 case __DRI_ATTRIB_GREEN_MASK:
175 dri_masks[1] = value;
176 break;
177
178 case __DRI_ATTRIB_BLUE_MASK:
179 dri_masks[2] = value;
180 break;
181
182 case __DRI_ATTRIB_ALPHA_MASK:
183 dri_masks[3] = value;
184 break;
185
186 default:
187 key = dri2_to_egl_attribute_map[attrib];
188 if (key != 0)
189 _eglSetConfigKey(&base, key, value);
190 break;
191 }
192 }
193
194 if (attr_list)
195 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
196 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
197
198 if (depth > 0 && depth != base.BufferSize)
199 return NULL;
200
201 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
202 return NULL;
203
204 base.NativeRenderable = EGL_TRUE;
205
206 base.SurfaceType = surface_type;
207 if (surface_type & (EGL_PBUFFER_BIT |
208 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
209 base.BindToTextureRGB = bind_to_texture_rgb;
210 if (base.AlphaSize > 0)
211 base.BindToTextureRGBA = bind_to_texture_rgba;
212 }
213
214 base.RenderableType = disp->ClientAPIs;
215 base.Conformant = disp->ClientAPIs;
216
217 if (!_eglValidateConfig(&base, EGL_FALSE)) {
218 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
219 return NULL;
220 }
221
222 config_id = base.ConfigID;
223 base.ConfigID = EGL_DONT_CARE;
224 base.SurfaceType = EGL_DONT_CARE;
225 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
226 (_EGLArrayForEach) dri2_match_config, &base);
227
228 if (num_configs == 1) {
229 conf = (struct dri2_egl_config *) matching_config;
230
231 if (double_buffer && !conf->dri_double_config)
232 conf->dri_double_config = dri_config;
233 else if (!double_buffer && !conf->dri_single_config)
234 conf->dri_single_config = dri_config;
235 else
236 /* a similar config type is already added (unlikely) => discard */
237 return NULL;
238 }
239 else if (num_configs == 0) {
240 conf = malloc(sizeof *conf);
241 if (conf == NULL)
242 return NULL;
243
244 memcpy(&conf->base, &base, sizeof base);
245 if (double_buffer) {
246 conf->dri_double_config = dri_config;
247 conf->dri_single_config = NULL;
248 } else {
249 conf->dri_single_config = dri_config;
250 conf->dri_double_config = NULL;
251 }
252 conf->base.SurfaceType = 0;
253 conf->base.ConfigID = config_id;
254
255 _eglLinkConfig(&conf->base);
256 }
257 else {
258 assert(0);
259 return NULL;
260 }
261
262 conf->base.SurfaceType |= surface_type & (!double_buffer ? EGL_PIXMAP_BIT:
263 (EGL_WINDOW_BIT | EGL_PBUFFER_BIT | EGL_SWAP_BEHAVIOR_PRESERVED_BIT));
264
265 return conf;
266 }
267
268 __DRIimage *
269 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
270 {
271 _EGLDisplay *disp = data;
272 struct dri2_egl_image *dri2_img;
273 _EGLImage *img;
274
275 (void) screen;
276
277 img = _eglLookupImage(image, disp);
278 if (img == NULL) {
279 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
280 return NULL;
281 }
282
283 dri2_img = dri2_egl_image(image);
284
285 return dri2_img->dri_image;
286 }
287
288 const __DRIimageLookupExtension image_lookup_extension = {
289 { __DRI_IMAGE_LOOKUP, 1 },
290 dri2_lookup_egl_image
291 };
292
293 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
294
295 struct dri2_extension_match {
296 const char *name;
297 int version;
298 int offset;
299 };
300
301 static struct dri2_extension_match dri2_driver_extensions[] = {
302 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
303 { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
304 { NULL, 0, 0 }
305 };
306
307 static struct dri2_extension_match dri2_core_extensions[] = {
308 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
309 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
310 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
311 { NULL, 0, 0 }
312 };
313
314 static struct dri2_extension_match swrast_driver_extensions[] = {
315 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
316 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
317 { NULL }
318 };
319
320 static struct dri2_extension_match swrast_core_extensions[] = {
321 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
322 { NULL }
323 };
324
325 static EGLBoolean
326 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
327 struct dri2_extension_match *matches,
328 const __DRIextension **extensions)
329 {
330 int i, j, ret = EGL_TRUE;
331 void *field;
332
333 for (i = 0; extensions[i]; i++) {
334 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
335 for (j = 0; matches[j].name; j++) {
336 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
337 extensions[i]->version >= matches[j].version) {
338 field = ((char *) dri2_dpy + matches[j].offset);
339 *(const __DRIextension **) field = extensions[i];
340 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
341 extensions[i]->name, extensions[i]->version);
342 }
343 }
344 }
345
346 for (j = 0; matches[j].name; j++) {
347 field = ((char *) dri2_dpy + matches[j].offset);
348 if (*(const __DRIextension **) field == NULL) {
349 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
350 matches[j].name, matches[j].version);
351 ret = EGL_FALSE;
352 }
353 }
354
355 return ret;
356 }
357
358 static const __DRIextension **
359 dri2_open_driver(_EGLDisplay *disp)
360 {
361 struct dri2_egl_display *dri2_dpy = disp->DriverData;
362 const __DRIextension **extensions;
363 char path[PATH_MAX], *search_paths, *p, *next, *end;
364
365 search_paths = NULL;
366 if (geteuid() == getuid()) {
367 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
368 search_paths = getenv("LIBGL_DRIVERS_PATH");
369 }
370 if (search_paths == NULL)
371 search_paths = DEFAULT_DRIVER_DIR;
372
373 dri2_dpy->driver = NULL;
374 end = search_paths + strlen(search_paths);
375 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
376 int len;
377 next = strchr(p, ':');
378 if (next == NULL)
379 next = end;
380
381 len = next - p;
382 #if GLX_USE_TLS
383 snprintf(path, sizeof path,
384 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
385 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
386 #endif
387 if (dri2_dpy->driver == NULL) {
388 snprintf(path, sizeof path,
389 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
390 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
391 if (dri2_dpy->driver == NULL)
392 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
393 }
394 }
395
396 if (dri2_dpy->driver == NULL) {
397 _eglLog(_EGL_WARNING,
398 "DRI2: failed to open %s (search paths %s)",
399 dri2_dpy->driver_name, search_paths);
400 return NULL;
401 }
402
403 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
404 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
405 if (extensions == NULL) {
406 _eglLog(_EGL_WARNING,
407 "DRI2: driver exports no extensions (%s)", dlerror());
408 dlclose(dri2_dpy->driver);
409 }
410
411 return extensions;
412 }
413
414 EGLBoolean
415 dri2_load_driver(_EGLDisplay *disp)
416 {
417 struct dri2_egl_display *dri2_dpy = disp->DriverData;
418 const __DRIextension **extensions;
419
420 extensions = dri2_open_driver(disp);
421 if (!extensions)
422 return EGL_FALSE;
423
424 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
425 dlclose(dri2_dpy->driver);
426 return EGL_FALSE;
427 }
428
429 return EGL_TRUE;
430 }
431
432 EGLBoolean
433 dri2_load_driver_swrast(_EGLDisplay *disp)
434 {
435 struct dri2_egl_display *dri2_dpy = disp->DriverData;
436 const __DRIextension **extensions;
437
438 dri2_dpy->driver_name = "swrast";
439 extensions = dri2_open_driver(disp);
440
441 if (!extensions)
442 return EGL_FALSE;
443
444 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
445 dlclose(dri2_dpy->driver);
446 return EGL_FALSE;
447 }
448
449 return EGL_TRUE;
450 }
451
452 void
453 dri2_setup_screen(_EGLDisplay *disp)
454 {
455 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
456 unsigned int api_mask;
457
458 if (dri2_dpy->dri2) {
459 if (dri2_dpy->dri2->base.version >= 2)
460 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
461 else
462 api_mask = 1 << __DRI_API_OPENGL;
463 } else {
464 assert(dri2_dpy->swrast);
465 if (dri2_dpy->swrast->base.version >= 2)
466 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
467 else
468 api_mask = 1 << __DRI_API_OPENGL;
469 }
470
471 disp->ClientAPIs = 0;
472 if (api_mask & (1 <<__DRI_API_OPENGL))
473 disp->ClientAPIs |= EGL_OPENGL_BIT;
474 if (api_mask & (1 <<__DRI_API_GLES))
475 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
476 if (api_mask & (1 << __DRI_API_GLES2))
477 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
478
479 if (dri2_dpy->dri2) {
480 if (dri2_dpy->dri2->base.version >= 2) {
481 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
482 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
483 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
484 }
485 } else {
486 assert(dri2_dpy->swrast);
487 if (dri2_dpy->swrast->base.version >= 2) {
488 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
489 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
490 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
491 }
492 }
493
494 if (dri2_dpy->image) {
495 disp->Extensions.MESA_drm_image = EGL_TRUE;
496 disp->Extensions.KHR_image_base = EGL_TRUE;
497 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
498 }
499 }
500
501 EGLBoolean
502 dri2_create_screen(_EGLDisplay *disp)
503 {
504 const __DRIextension **extensions;
505 struct dri2_egl_display *dri2_dpy;
506
507 dri2_dpy = disp->DriverData;
508
509 if (dri2_dpy->dri2) {
510 dri2_dpy->dri_screen =
511 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
512 &dri2_dpy->driver_configs, disp);
513 } else {
514 assert(dri2_dpy->swrast);
515 dri2_dpy->dri_screen =
516 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
517 &dri2_dpy->driver_configs, disp);
518 }
519
520 if (dri2_dpy->dri_screen == NULL) {
521 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
522 return EGL_FALSE;
523 }
524
525 dri2_dpy->own_dri_screen = 1;
526
527 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
528
529 if (dri2_dpy->dri2) {
530 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
531 goto cleanup_dri_screen;
532 } else {
533 assert(dri2_dpy->swrast);
534 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
535 goto cleanup_dri_screen;
536 }
537
538 dri2_setup_screen(disp);
539
540 return EGL_TRUE;
541
542 cleanup_dri_screen:
543 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
544
545 return EGL_FALSE;
546 }
547
548 /**
549 * Called via eglInitialize(), GLX_drv->API.Initialize().
550 */
551 static EGLBoolean
552 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
553 {
554 /* not until swrast_dri is supported */
555 if (disp->Options.UseFallback)
556 return EGL_FALSE;
557
558 switch (disp->Platform) {
559 #ifdef HAVE_X11_PLATFORM
560 case _EGL_PLATFORM_X11:
561 if (disp->Options.TestOnly)
562 return EGL_TRUE;
563 return dri2_initialize_x11(drv, disp);
564 #endif
565
566 #ifdef HAVE_LIBUDEV
567 #ifdef HAVE_DRM_PLATFORM
568 case _EGL_PLATFORM_DRM:
569 if (disp->Options.TestOnly)
570 return EGL_TRUE;
571 return dri2_initialize_drm(drv, disp);
572 #endif
573 #ifdef HAVE_WAYLAND_PLATFORM
574 case _EGL_PLATFORM_WAYLAND:
575 if (disp->Options.TestOnly)
576 return EGL_TRUE;
577 return dri2_initialize_wayland(drv, disp);
578 #endif
579 #endif
580
581 default:
582 return EGL_FALSE;
583 }
584 }
585
586 /**
587 * Called via eglTerminate(), drv->API.Terminate().
588 */
589 static EGLBoolean
590 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
591 {
592 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
593
594 _eglReleaseDisplayResources(drv, disp);
595 _eglCleanupDisplay(disp);
596
597 if (dri2_dpy->own_dri_screen)
598 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
599 if (dri2_dpy->fd)
600 close(dri2_dpy->fd);
601 if (dri2_dpy->driver)
602 dlclose(dri2_dpy->driver);
603
604 if (disp->PlatformDisplay == NULL) {
605 switch (disp->Platform) {
606 #ifdef HAVE_X11_PLATFORM
607 case _EGL_PLATFORM_X11:
608 xcb_disconnect(dri2_dpy->conn);
609 break;
610 #endif
611 #ifdef HAVE_WAYLAND_PLATFORM
612 case _EGL_PLATFORM_WAYLAND:
613 wl_display_destroy(dri2_dpy->wl_dpy);
614 break;
615 #endif
616 #ifdef HAVE_DRM_PLATFORM
617 case _EGL_PLATFORM_DRM:
618 if (dri2_dpy->own_gbm_device) {
619 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
620 }
621 break;
622 #endif
623 default:
624 break;
625 }
626 }
627
628 free(dri2_dpy);
629 disp->DriverData = NULL;
630
631 return EGL_TRUE;
632 }
633
634
635 /**
636 * Called via eglCreateContext(), drv->API.CreateContext().
637 */
638 static _EGLContext *
639 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
640 _EGLContext *share_list, const EGLint *attrib_list)
641 {
642 struct dri2_egl_context *dri2_ctx;
643 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
644 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
645 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
646 const __DRIconfig *dri_config;
647 int api;
648
649 (void) drv;
650
651 dri2_ctx = malloc(sizeof *dri2_ctx);
652 if (!dri2_ctx) {
653 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
654 return NULL;
655 }
656
657 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
658 goto cleanup;
659
660 switch (dri2_ctx->base.ClientAPI) {
661 case EGL_OPENGL_ES_API:
662 switch (dri2_ctx->base.ClientVersion) {
663 case 1:
664 api = __DRI_API_GLES;
665 break;
666 case 2:
667 api = __DRI_API_GLES2;
668 break;
669 default:
670 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
671 return NULL;
672 }
673 break;
674 case EGL_OPENGL_API:
675 api = __DRI_API_OPENGL;
676 break;
677 default:
678 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
679 return NULL;
680 }
681
682 if (conf != NULL) {
683 /* The config chosen here isn't necessarily
684 * used for surfaces later.
685 * A pixmap surface will use the single config.
686 * This opportunity depends on disabling the
687 * doubleBufferMode check in
688 * src/mesa/main/context.c:check_compatible()
689 */
690 if (dri2_config->dri_double_config)
691 dri_config = dri2_config->dri_double_config;
692 else
693 dri_config = dri2_config->dri_single_config;
694 }
695 else
696 dri_config = NULL;
697
698 if (dri2_dpy->dri2) {
699 if (dri2_dpy->dri2->base.version >= 2) {
700 dri2_ctx->dri_context =
701 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
702 api,
703 dri_config,
704 dri2_ctx_shared ?
705 dri2_ctx_shared->dri_context : NULL,
706 dri2_ctx);
707 } else if (api == __DRI_API_OPENGL) {
708 dri2_ctx->dri_context =
709 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
710 dri_config,
711 dri2_ctx_shared ?
712 dri2_ctx_shared->dri_context : NULL,
713 dri2_ctx);
714 } else {
715 /* fail */
716 }
717 } else {
718 assert(dri2_dpy->swrast);
719 if (dri2_dpy->swrast->base.version >= 2) {
720 dri2_ctx->dri_context =
721 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
722 api,
723 dri_config,
724 dri2_ctx_shared ?
725 dri2_ctx_shared->dri_context : NULL,
726 dri2_ctx);
727 } else if (api == __DRI_API_OPENGL) {
728 dri2_ctx->dri_context =
729 dri2_dpy->core->createNewContext(dri2_dpy->dri_screen,
730 dri_config,
731 dri2_ctx_shared ?
732 dri2_ctx_shared->dri_context : NULL,
733 dri2_ctx);
734 } else {
735 /* fail */
736 }
737 }
738
739 if (!dri2_ctx->dri_context)
740 goto cleanup;
741
742 return &dri2_ctx->base;
743
744 cleanup:
745 free(dri2_ctx);
746 return NULL;
747 }
748
749 /**
750 * Called via eglDestroyContext(), drv->API.DestroyContext().
751 */
752 static EGLBoolean
753 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
754 {
755 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
756 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
757
758 if (_eglPutContext(ctx)) {
759 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
760 free(dri2_ctx);
761 }
762
763 return EGL_TRUE;
764 }
765
766 /**
767 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
768 */
769 static EGLBoolean
770 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
771 _EGLSurface *rsurf, _EGLContext *ctx)
772 {
773 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
774 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
775 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
776 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
777 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
778 _EGLContext *old_ctx;
779 _EGLSurface *old_dsurf, *old_rsurf;
780 __DRIdrawable *ddraw, *rdraw;
781 __DRIcontext *cctx;
782
783 /* make new bindings */
784 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
785 return EGL_FALSE;
786
787 /* flush before context switch */
788 if (old_ctx && dri2_drv->glFlush)
789 dri2_drv->glFlush();
790
791 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
792 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
793 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
794
795 if (old_ctx) {
796 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
797 dri2_dpy->core->unbindContext(old_cctx);
798 }
799
800 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
801 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
802 if (old_dsurf)
803 drv->API.DestroySurface(drv, disp, old_dsurf);
804 if (old_rsurf)
805 drv->API.DestroySurface(drv, disp, old_rsurf);
806 if (old_ctx)
807 drv->API.DestroyContext(drv, disp, old_ctx);
808
809 return EGL_TRUE;
810 } else {
811 /* undo the previous _eglBindContext */
812 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
813 assert(&dri2_ctx->base == ctx &&
814 &dri2_dsurf->base == dsurf &&
815 &dri2_rsurf->base == rsurf);
816
817 _eglPutSurface(dsurf);
818 _eglPutSurface(rsurf);
819 _eglPutContext(ctx);
820
821 _eglPutSurface(old_dsurf);
822 _eglPutSurface(old_rsurf);
823 _eglPutContext(old_ctx);
824
825 return EGL_FALSE;
826 }
827 }
828
829 /*
830 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
831 */
832 static _EGLProc
833 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
834 {
835 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
836
837 return dri2_drv->get_proc_address(procname);
838 }
839
840 static EGLBoolean
841 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
842 {
843 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
844 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
845
846 (void) drv;
847
848 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
849 * we need to copy fake to real here.*/
850
851 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
852
853 return EGL_TRUE;
854 }
855
856 static EGLBoolean
857 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
858 {
859 (void) drv;
860 (void) disp;
861
862 if (engine != EGL_CORE_NATIVE_ENGINE)
863 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
864 /* glXWaitX(); */
865
866 return EGL_TRUE;
867 }
868
869 static EGLBoolean
870 dri2_bind_tex_image(_EGLDriver *drv,
871 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
872 {
873 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
874 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
875 struct dri2_egl_context *dri2_ctx;
876 _EGLContext *ctx;
877 GLint format, target;
878
879 ctx = _eglGetCurrentContext();
880 dri2_ctx = dri2_egl_context(ctx);
881
882 if (!_eglBindTexImage(drv, disp, surf, buffer))
883 return EGL_FALSE;
884
885 switch (dri2_surf->base.TextureFormat) {
886 case EGL_TEXTURE_RGB:
887 format = __DRI_TEXTURE_FORMAT_RGB;
888 break;
889 case EGL_TEXTURE_RGBA:
890 format = __DRI_TEXTURE_FORMAT_RGBA;
891 break;
892 default:
893 assert(0);
894 }
895
896 switch (dri2_surf->base.TextureTarget) {
897 case EGL_TEXTURE_2D:
898 target = GL_TEXTURE_2D;
899 break;
900 default:
901 assert(0);
902 }
903
904 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
905 target, format,
906 dri2_surf->dri_drawable);
907
908 return EGL_TRUE;
909 }
910
911 static EGLBoolean
912 dri2_release_tex_image(_EGLDriver *drv,
913 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
914 {
915 #if __DRI_TEX_BUFFER_VERSION >= 3
916 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
917 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
918 struct dri2_egl_context *dri2_ctx;
919 _EGLContext *ctx;
920 GLint target;
921
922 ctx = _eglGetCurrentContext();
923 dri2_ctx = dri2_egl_context(ctx);
924
925 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
926 return EGL_FALSE;
927
928 switch (dri2_surf->base.TextureTarget) {
929 case EGL_TEXTURE_2D:
930 target = GL_TEXTURE_2D;
931 break;
932 default:
933 assert(0);
934 }
935 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
936 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
937 target,
938 dri2_surf->dri_drawable);
939 #endif
940
941 return EGL_TRUE;
942 }
943
944 static _EGLImage *
945 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
946 EGLClientBuffer buffer,
947 const EGLint *attr_list)
948 {
949 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
950 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
951 struct dri2_egl_image *dri2_img;
952 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
953
954 if (renderbuffer == 0) {
955 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
956 return EGL_NO_IMAGE_KHR;
957 }
958
959 dri2_img = malloc(sizeof *dri2_img);
960 if (!dri2_img) {
961 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
962 return EGL_NO_IMAGE_KHR;
963 }
964
965 if (!_eglInitImage(&dri2_img->base, disp)) {
966 free(dri2_img);
967 return EGL_NO_IMAGE_KHR;
968 }
969
970 dri2_img->dri_image =
971 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
972 renderbuffer,
973 dri2_img);
974
975 return &dri2_img->base;
976 }
977
978 static _EGLImage *
979 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
980 EGLClientBuffer buffer, const EGLint *attr_list)
981 {
982 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
983 struct dri2_egl_image *dri2_img;
984 EGLint format, name, pitch, err;
985 _EGLImageAttribs attrs;
986
987 (void) ctx;
988
989 name = (EGLint) (uintptr_t) buffer;
990
991 err = _eglParseImageAttribList(&attrs, disp, attr_list);
992 if (err != EGL_SUCCESS)
993 return NULL;
994
995 if (attrs.Width <= 0 || attrs.Height <= 0 ||
996 attrs.DRMBufferStrideMESA <= 0) {
997 _eglError(EGL_BAD_PARAMETER,
998 "bad width, height or stride");
999 return NULL;
1000 }
1001
1002 switch (attrs.DRMBufferFormatMESA) {
1003 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1004 format = __DRI_IMAGE_FORMAT_ARGB8888;
1005 pitch = attrs.DRMBufferStrideMESA;
1006 break;
1007 default:
1008 _eglError(EGL_BAD_PARAMETER,
1009 "dri2_create_image_khr: unsupported pixmap depth");
1010 return NULL;
1011 }
1012
1013 dri2_img = malloc(sizeof *dri2_img);
1014 if (!dri2_img) {
1015 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
1016 return NULL;
1017 }
1018
1019 if (!_eglInitImage(&dri2_img->base, disp)) {
1020 free(dri2_img);
1021 return NULL;
1022 }
1023
1024 dri2_img->dri_image =
1025 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1026 attrs.Width,
1027 attrs.Height,
1028 format,
1029 name,
1030 pitch,
1031 dri2_img);
1032 if (dri2_img->dri_image == NULL) {
1033 free(dri2_img);
1034 _eglError(EGL_BAD_ALLOC, "dri2_create_image_mesa_drm");
1035 return NULL;
1036 }
1037
1038 return &dri2_img->base;
1039 }
1040
1041 #ifdef HAVE_WAYLAND_PLATFORM
1042 static _EGLImage *
1043 dri2_reference_drm_image(_EGLDisplay *disp, _EGLContext *ctx,
1044 __DRIimage *dri_image, EGLint width, EGLint height)
1045 {
1046 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1047 EGLint attr_list[] = {
1048 EGL_WIDTH, 0,
1049 EGL_HEIGHT, 0,
1050 EGL_DRM_BUFFER_STRIDE_MESA, 0,
1051 EGL_DRM_BUFFER_FORMAT_MESA, EGL_DRM_BUFFER_FORMAT_ARGB32_MESA,
1052 EGL_NONE
1053 };
1054 EGLint name, stride;
1055
1056 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_NAME, &name);
1057 dri2_dpy->image->queryImage(dri_image, __DRI_IMAGE_ATTRIB_STRIDE, &stride);
1058
1059 attr_list[1] = width;
1060 attr_list[3] = height;
1061 attr_list[5] = stride / 4;
1062
1063 return dri2_create_image_mesa_drm_buffer(disp, ctx,
1064 (EGLClientBuffer)(intptr_t) name,
1065 attr_list);
1066 }
1067
1068 static _EGLImage *
1069 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1070 EGLClientBuffer _buffer,
1071 const EGLint *attr_list)
1072 {
1073 struct wl_buffer *buffer = (struct wl_buffer *) _buffer;
1074 (void) attr_list;
1075
1076 if (!wayland_buffer_is_drm(buffer))
1077 return NULL;
1078
1079 return dri2_reference_drm_image(disp, ctx,
1080 wayland_drm_buffer_get_buffer(buffer),
1081 buffer->width,
1082 buffer->height);
1083 }
1084 #endif
1085
1086 _EGLImage *
1087 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1088 _EGLContext *ctx, EGLenum target,
1089 EGLClientBuffer buffer, const EGLint *attr_list)
1090 {
1091 (void) drv;
1092
1093 switch (target) {
1094 case EGL_GL_RENDERBUFFER_KHR:
1095 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1096 case EGL_DRM_BUFFER_MESA:
1097 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1098 #ifdef HAVE_WAYLAND_PLATFORM
1099 case EGL_WAYLAND_BUFFER_WL:
1100 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1101 #endif
1102 default:
1103 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1104 return EGL_NO_IMAGE_KHR;
1105 }
1106 }
1107
1108 static EGLBoolean
1109 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1110 {
1111 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1112 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1113
1114 (void) drv;
1115
1116 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1117 free(dri2_img);
1118
1119 return EGL_TRUE;
1120 }
1121
1122 static _EGLImage *
1123 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1124 const EGLint *attr_list)
1125 {
1126 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1127 struct dri2_egl_image *dri2_img;
1128 _EGLImageAttribs attrs;
1129 unsigned int dri_use, valid_mask;
1130 int format;
1131 EGLint err = EGL_SUCCESS;
1132
1133 (void) drv;
1134
1135 dri2_img = malloc(sizeof *dri2_img);
1136 if (!dri2_img) {
1137 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1138 return EGL_NO_IMAGE_KHR;
1139 }
1140
1141 if (!attr_list) {
1142 err = EGL_BAD_PARAMETER;
1143 goto cleanup_img;
1144 }
1145
1146 if (!_eglInitImage(&dri2_img->base, disp)) {
1147 err = EGL_BAD_PARAMETER;
1148 goto cleanup_img;
1149 }
1150
1151 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1152 if (err != EGL_SUCCESS)
1153 goto cleanup_img;
1154
1155 if (attrs.Width <= 0 || attrs.Height <= 0) {
1156 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1157 attrs.Width, attrs.Height);
1158 goto cleanup_img;
1159 }
1160
1161 switch (attrs.DRMBufferFormatMESA) {
1162 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1163 format = __DRI_IMAGE_FORMAT_ARGB8888;
1164 break;
1165 default:
1166 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1167 attrs.DRMBufferFormatMESA);
1168 goto cleanup_img;
1169 }
1170
1171 valid_mask =
1172 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1173 EGL_DRM_BUFFER_USE_SHARE_MESA |
1174 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1175 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1176 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1177 attrs.DRMBufferUseMESA & ~valid_mask);
1178 goto cleanup_img;
1179 }
1180
1181 dri_use = 0;
1182 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1183 dri_use |= __DRI_IMAGE_USE_SHARE;
1184 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1185 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1186 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1187 dri_use |= __DRI_IMAGE_USE_CURSOR;
1188
1189 dri2_img->dri_image =
1190 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1191 attrs.Width, attrs.Height,
1192 format, dri_use, dri2_img);
1193 if (dri2_img->dri_image == NULL) {
1194 err = EGL_BAD_ALLOC;
1195 goto cleanup_img;
1196 }
1197
1198 return &dri2_img->base;
1199
1200 cleanup_img:
1201 free(dri2_img);
1202 _eglError(err, "dri2_create_drm_image_mesa");
1203
1204 return EGL_NO_IMAGE_KHR;
1205 }
1206
1207 static EGLBoolean
1208 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1209 EGLint *name, EGLint *handle, EGLint *stride)
1210 {
1211 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1212 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1213
1214 (void) drv;
1215
1216 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1217 __DRI_IMAGE_ATTRIB_NAME, name)) {
1218 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1219 return EGL_FALSE;
1220 }
1221
1222 if (handle)
1223 dri2_dpy->image->queryImage(dri2_img->dri_image,
1224 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1225
1226 if (stride)
1227 dri2_dpy->image->queryImage(dri2_img->dri_image,
1228 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1229
1230 return EGL_TRUE;
1231 }
1232
1233 #ifdef HAVE_WAYLAND_PLATFORM
1234
1235 static void *
1236 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1237 int32_t width, int32_t height,
1238 uint32_t stride, struct wl_visual *visual)
1239 {
1240 _EGLDisplay *disp = user_data;
1241 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1242 __DRIimage *image;
1243
1244 image = dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1245 width, height,
1246 __DRI_IMAGE_FORMAT_ARGB8888,
1247 name, stride / 4,
1248 NULL);
1249
1250 return image;
1251 }
1252
1253 static void
1254 dri2_wl_release_buffer(void *user_data, void *buffer)
1255 {
1256 _EGLDisplay *disp = user_data;
1257 __DRIimage *image = buffer;
1258 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1259
1260 dri2_dpy->image->destroyImage(image);
1261 }
1262
1263 static struct wayland_drm_callbacks wl_drm_callbacks = {
1264 .authenticate = NULL,
1265 .reference_buffer = dri2_wl_reference_buffer,
1266 .release_buffer = dri2_wl_release_buffer
1267 };
1268
1269 static EGLBoolean
1270 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1271 struct wl_display *wl_dpy)
1272 {
1273 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1274
1275 (void) drv;
1276
1277 if (dri2_dpy->wl_server_drm)
1278 return EGL_FALSE;
1279
1280 wl_drm_callbacks.authenticate =
1281 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1282
1283 dri2_dpy->wl_server_drm =
1284 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1285 &wl_drm_callbacks, disp);
1286
1287 if (!dri2_dpy->wl_server_drm)
1288 return EGL_FALSE;
1289
1290 return EGL_TRUE;
1291 }
1292
1293 static EGLBoolean
1294 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1295 struct wl_display *wl_dpy)
1296 {
1297 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1298
1299 (void) drv;
1300
1301 if (!dri2_dpy->wl_server_drm)
1302 return EGL_FALSE;
1303
1304 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1305 dri2_dpy->wl_server_drm = NULL;
1306
1307 return EGL_TRUE;
1308 }
1309 #endif
1310
1311 static void
1312 dri2_unload(_EGLDriver *drv)
1313 {
1314 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1315
1316 if (dri2_drv->handle)
1317 dlclose(dri2_drv->handle);
1318 free(dri2_drv);
1319 }
1320
1321 static EGLBoolean
1322 dri2_load(_EGLDriver *drv)
1323 {
1324 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1325 #ifdef HAVE_SHARED_GLAPI
1326 const char *libname = "libglapi.so.0";
1327 #else
1328 /*
1329 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1330 * tell which one to load.
1331 */
1332 const char *libname = NULL;
1333 #endif
1334 void *handle;
1335
1336 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1337 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1338 if (handle) {
1339 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1340 dlsym(handle, "_glapi_get_proc_address");
1341 if (!dri2_drv->get_proc_address || !libname) {
1342 /* no need to keep a reference */
1343 dlclose(handle);
1344 handle = NULL;
1345 }
1346 }
1347
1348 /* if glapi is not available, loading DRI drivers will fail */
1349 if (!dri2_drv->get_proc_address) {
1350 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1351 return EGL_FALSE;
1352 }
1353
1354 dri2_drv->glFlush = (void (*)(void))
1355 dri2_drv->get_proc_address("glFlush");
1356
1357 dri2_drv->handle = handle;
1358
1359 return EGL_TRUE;
1360 }
1361
1362 /**
1363 * This is the main entrypoint into the driver, called by libEGL.
1364 * Create a new _EGLDriver object and init its dispatch table.
1365 */
1366 _EGLDriver *
1367 _EGL_MAIN(const char *args)
1368 {
1369 struct dri2_egl_driver *dri2_drv;
1370
1371 (void) args;
1372
1373 dri2_drv = malloc(sizeof *dri2_drv);
1374 if (!dri2_drv)
1375 return NULL;
1376
1377 memset(dri2_drv, 0, sizeof *dri2_drv);
1378
1379 if (!dri2_load(&dri2_drv->base)) {
1380 free(dri2_drv);
1381 return NULL;
1382 }
1383
1384 _eglInitDriverFallbacks(&dri2_drv->base);
1385 dri2_drv->base.API.Initialize = dri2_initialize;
1386 dri2_drv->base.API.Terminate = dri2_terminate;
1387 dri2_drv->base.API.CreateContext = dri2_create_context;
1388 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
1389 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1390 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1391 dri2_drv->base.API.WaitClient = dri2_wait_client;
1392 dri2_drv->base.API.WaitNative = dri2_wait_native;
1393 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1394 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1395 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1396 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1397 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1398 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1399 #ifdef HAVE_WAYLAND_PLATFORM
1400 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1401 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1402 #endif
1403
1404 dri2_drv->base.Name = "DRI2";
1405 dri2_drv->base.Unload = dri2_unload;
1406
1407 return &dri2_drv->base;
1408 }