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