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egl_dri2: Refactor dereference of dri2_ctx_shared
[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 if (double_buffer) {
263 surface_type &= ~EGL_PIXMAP_BIT;
264
265 if (dri2_dpy->swap_available) {
266 conf->base.MinSwapInterval = 0;
267 conf->base.MaxSwapInterval = 1000; /* XXX arbitrary value */
268 }
269 }
270
271 conf->base.SurfaceType |= surface_type;
272
273 return conf;
274 }
275
276 __DRIimage *
277 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
278 {
279 _EGLDisplay *disp = data;
280 struct dri2_egl_image *dri2_img;
281 _EGLImage *img;
282
283 (void) screen;
284
285 img = _eglLookupImage(image, disp);
286 if (img == NULL) {
287 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
288 return NULL;
289 }
290
291 dri2_img = dri2_egl_image(image);
292
293 return dri2_img->dri_image;
294 }
295
296 const __DRIimageLookupExtension image_lookup_extension = {
297 { __DRI_IMAGE_LOOKUP, 1 },
298 dri2_lookup_egl_image
299 };
300
301 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
302
303 struct dri2_extension_match {
304 const char *name;
305 int version;
306 int offset;
307 };
308
309 static struct dri2_extension_match dri2_driver_extensions[] = {
310 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
311 { __DRI_DRI2, 1, offsetof(struct dri2_egl_display, dri2) },
312 { NULL, 0, 0 }
313 };
314
315 static struct dri2_extension_match dri2_core_extensions[] = {
316 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
317 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
318 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
319 { NULL, 0, 0 }
320 };
321
322 static struct dri2_extension_match swrast_driver_extensions[] = {
323 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
324 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
325 { NULL }
326 };
327
328 static struct dri2_extension_match swrast_core_extensions[] = {
329 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
330 { NULL }
331 };
332
333 static EGLBoolean
334 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
335 struct dri2_extension_match *matches,
336 const __DRIextension **extensions)
337 {
338 int i, j, ret = EGL_TRUE;
339 void *field;
340
341 for (i = 0; extensions[i]; i++) {
342 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
343 for (j = 0; matches[j].name; j++) {
344 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
345 extensions[i]->version >= matches[j].version) {
346 field = ((char *) dri2_dpy + matches[j].offset);
347 *(const __DRIextension **) field = extensions[i];
348 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
349 extensions[i]->name, extensions[i]->version);
350 }
351 }
352 }
353
354 for (j = 0; matches[j].name; j++) {
355 field = ((char *) dri2_dpy + matches[j].offset);
356 if (*(const __DRIextension **) field == NULL) {
357 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
358 matches[j].name, matches[j].version);
359 ret = EGL_FALSE;
360 }
361 }
362
363 return ret;
364 }
365
366 static const __DRIextension **
367 dri2_open_driver(_EGLDisplay *disp)
368 {
369 struct dri2_egl_display *dri2_dpy = disp->DriverData;
370 const __DRIextension **extensions;
371 char path[PATH_MAX], *search_paths, *p, *next, *end;
372
373 search_paths = NULL;
374 if (geteuid() == getuid()) {
375 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
376 search_paths = getenv("LIBGL_DRIVERS_PATH");
377 }
378 if (search_paths == NULL)
379 search_paths = DEFAULT_DRIVER_DIR;
380
381 dri2_dpy->driver = NULL;
382 end = search_paths + strlen(search_paths);
383 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
384 int len;
385 next = strchr(p, ':');
386 if (next == NULL)
387 next = end;
388
389 len = next - p;
390 #if GLX_USE_TLS
391 snprintf(path, sizeof path,
392 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
393 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
394 #endif
395 if (dri2_dpy->driver == NULL) {
396 snprintf(path, sizeof path,
397 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
398 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
399 if (dri2_dpy->driver == NULL)
400 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
401 }
402 }
403
404 if (dri2_dpy->driver == NULL) {
405 _eglLog(_EGL_WARNING,
406 "DRI2: failed to open %s (search paths %s)",
407 dri2_dpy->driver_name, search_paths);
408 return NULL;
409 }
410
411 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
412 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
413 if (extensions == NULL) {
414 _eglLog(_EGL_WARNING,
415 "DRI2: driver exports no extensions (%s)", dlerror());
416 dlclose(dri2_dpy->driver);
417 }
418
419 return extensions;
420 }
421
422 EGLBoolean
423 dri2_load_driver(_EGLDisplay *disp)
424 {
425 struct dri2_egl_display *dri2_dpy = disp->DriverData;
426 const __DRIextension **extensions;
427
428 extensions = dri2_open_driver(disp);
429 if (!extensions)
430 return EGL_FALSE;
431
432 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
433 dlclose(dri2_dpy->driver);
434 return EGL_FALSE;
435 }
436
437 return EGL_TRUE;
438 }
439
440 EGLBoolean
441 dri2_load_driver_swrast(_EGLDisplay *disp)
442 {
443 struct dri2_egl_display *dri2_dpy = disp->DriverData;
444 const __DRIextension **extensions;
445
446 dri2_dpy->driver_name = "swrast";
447 extensions = dri2_open_driver(disp);
448
449 if (!extensions)
450 return EGL_FALSE;
451
452 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
453 dlclose(dri2_dpy->driver);
454 return EGL_FALSE;
455 }
456
457 return EGL_TRUE;
458 }
459
460 void
461 dri2_setup_screen(_EGLDisplay *disp)
462 {
463 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
464 unsigned int api_mask;
465
466 if (dri2_dpy->dri2) {
467 if (dri2_dpy->dri2->base.version >= 2)
468 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
469 else
470 api_mask = 1 << __DRI_API_OPENGL;
471 } else {
472 assert(dri2_dpy->swrast);
473 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
474 }
475
476 disp->ClientAPIs = 0;
477 if (api_mask & (1 <<__DRI_API_OPENGL))
478 disp->ClientAPIs |= EGL_OPENGL_BIT;
479 if (api_mask & (1 <<__DRI_API_GLES))
480 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
481 if (api_mask & (1 << __DRI_API_GLES2))
482 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
483
484 if (dri2_dpy->dri2) {
485 if (dri2_dpy->dri2->base.version >= 2) {
486 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
487 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
488 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
489 }
490 } else {
491 assert(dri2_dpy->swrast);
492 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
493 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
494 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
495 }
496
497 if (dri2_dpy->image) {
498 disp->Extensions.MESA_drm_image = EGL_TRUE;
499 disp->Extensions.KHR_image_base = EGL_TRUE;
500 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
501 }
502 }
503
504 EGLBoolean
505 dri2_create_screen(_EGLDisplay *disp)
506 {
507 const __DRIextension **extensions;
508 struct dri2_egl_display *dri2_dpy;
509
510 dri2_dpy = disp->DriverData;
511
512 if (dri2_dpy->dri2) {
513 dri2_dpy->dri_screen =
514 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
515 &dri2_dpy->driver_configs, disp);
516 } else {
517 assert(dri2_dpy->swrast);
518 dri2_dpy->dri_screen =
519 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
520 &dri2_dpy->driver_configs, disp);
521 }
522
523 if (dri2_dpy->dri_screen == NULL) {
524 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
525 return EGL_FALSE;
526 }
527
528 dri2_dpy->own_dri_screen = 1;
529
530 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
531
532 if (dri2_dpy->dri2) {
533 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
534 goto cleanup_dri_screen;
535 } else {
536 assert(dri2_dpy->swrast);
537 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
538 goto cleanup_dri_screen;
539 }
540
541 dri2_setup_screen(disp);
542
543 return EGL_TRUE;
544
545 cleanup_dri_screen:
546 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
547
548 return EGL_FALSE;
549 }
550
551 /**
552 * Called via eglInitialize(), GLX_drv->API.Initialize().
553 */
554 static EGLBoolean
555 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
556 {
557 /* not until swrast_dri is supported */
558 if (disp->Options.UseFallback)
559 return EGL_FALSE;
560
561 switch (disp->Platform) {
562 #ifdef HAVE_X11_PLATFORM
563 case _EGL_PLATFORM_X11:
564 if (disp->Options.TestOnly)
565 return EGL_TRUE;
566 return dri2_initialize_x11(drv, disp);
567 #endif
568
569 #ifdef HAVE_LIBUDEV
570 #ifdef HAVE_DRM_PLATFORM
571 case _EGL_PLATFORM_DRM:
572 if (disp->Options.TestOnly)
573 return EGL_TRUE;
574 return dri2_initialize_drm(drv, disp);
575 #endif
576 #ifdef HAVE_WAYLAND_PLATFORM
577 case _EGL_PLATFORM_WAYLAND:
578 if (disp->Options.TestOnly)
579 return EGL_TRUE;
580 return dri2_initialize_wayland(drv, disp);
581 #endif
582 #endif
583 #ifdef HAVE_ANDROID_PLATFORM
584 case _EGL_PLATFORM_ANDROID:
585 if (disp->Options.TestOnly)
586 return EGL_TRUE;
587 return dri2_initialize_android(drv, disp);
588 #endif
589
590 default:
591 return EGL_FALSE;
592 }
593 }
594
595 /**
596 * Called via eglTerminate(), drv->API.Terminate().
597 */
598 static EGLBoolean
599 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
600 {
601 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
602
603 _eglReleaseDisplayResources(drv, disp);
604 _eglCleanupDisplay(disp);
605
606 if (dri2_dpy->own_dri_screen)
607 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
608 if (dri2_dpy->fd)
609 close(dri2_dpy->fd);
610 if (dri2_dpy->driver)
611 dlclose(dri2_dpy->driver);
612 if (dri2_dpy->device_name)
613 free(dri2_dpy->device_name);
614
615 if (disp->PlatformDisplay == NULL) {
616 switch (disp->Platform) {
617 #ifdef HAVE_X11_PLATFORM
618 case _EGL_PLATFORM_X11:
619 xcb_disconnect(dri2_dpy->conn);
620 break;
621 #endif
622 #ifdef HAVE_DRM_PLATFORM
623 case _EGL_PLATFORM_DRM:
624 if (dri2_dpy->own_device) {
625 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
626 }
627 break;
628 #endif
629 default:
630 break;
631 }
632 }
633
634 free(dri2_dpy);
635 disp->DriverData = NULL;
636
637 return EGL_TRUE;
638 }
639
640
641 /**
642 * Called via eglCreateContext(), drv->API.CreateContext().
643 */
644 static _EGLContext *
645 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
646 _EGLContext *share_list, const EGLint *attrib_list)
647 {
648 struct dri2_egl_context *dri2_ctx;
649 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
650 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
651 __DRIcontext *shared =
652 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
653 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
654 const __DRIconfig *dri_config;
655 int api;
656
657 (void) drv;
658
659 dri2_ctx = malloc(sizeof *dri2_ctx);
660 if (!dri2_ctx) {
661 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
662 return NULL;
663 }
664
665 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
666 goto cleanup;
667
668 switch (dri2_ctx->base.ClientAPI) {
669 case EGL_OPENGL_ES_API:
670 switch (dri2_ctx->base.ClientVersion) {
671 case 1:
672 api = __DRI_API_GLES;
673 break;
674 case 2:
675 api = __DRI_API_GLES2;
676 break;
677 default:
678 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
679 return NULL;
680 }
681 break;
682 case EGL_OPENGL_API:
683 api = __DRI_API_OPENGL;
684 break;
685 default:
686 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
687 return NULL;
688 }
689
690 if (conf != NULL) {
691 /* The config chosen here isn't necessarily
692 * used for surfaces later.
693 * A pixmap surface will use the single config.
694 * This opportunity depends on disabling the
695 * doubleBufferMode check in
696 * src/mesa/main/context.c:check_compatible()
697 */
698 if (dri2_config->dri_double_config)
699 dri_config = dri2_config->dri_double_config;
700 else
701 dri_config = dri2_config->dri_single_config;
702
703 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
704 * makes sure the back buffer will always be used.
705 */
706 if (conf->SurfaceType & EGL_WINDOW_BIT)
707 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
708 }
709 else
710 dri_config = NULL;
711
712 if (dri2_dpy->dri2) {
713 if (dri2_dpy->dri2->base.version >= 2) {
714 dri2_ctx->dri_context =
715 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
716 api,
717 dri_config,
718 shared,
719 dri2_ctx);
720 } else if (api == __DRI_API_OPENGL) {
721 dri2_ctx->dri_context =
722 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
723 dri_config,
724 shared,
725 dri2_ctx);
726 } else {
727 /* fail */
728 }
729 } else {
730 assert(dri2_dpy->swrast);
731 dri2_ctx->dri_context =
732 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
733 api,
734 dri_config,
735 shared,
736 dri2_ctx);
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(_EGLDisplay *disp, __DRIimage *dri_image)
946 {
947 struct dri2_egl_image *dri2_img;
948
949 if (dri_image == NULL) {
950 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
951 return NULL;
952 }
953
954 dri2_img = malloc(sizeof *dri2_img);
955 if (!dri2_img) {
956 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
957 return NULL;
958 }
959
960 if (!_eglInitImage(&dri2_img->base, disp)) {
961 free(dri2_img);
962 return NULL;
963 }
964
965 dri2_img->dri_image = dri_image;
966
967 return &dri2_img->base;
968 }
969
970 static _EGLImage *
971 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
972 EGLClientBuffer buffer,
973 const EGLint *attr_list)
974 {
975 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
976 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
977 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
978 __DRIimage *dri_image;
979
980 if (renderbuffer == 0) {
981 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
982 return EGL_NO_IMAGE_KHR;
983 }
984
985 dri_image =
986 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
987 renderbuffer, NULL);
988
989 return dri2_create_image(disp, dri_image);
990 }
991
992 static _EGLImage *
993 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
994 EGLClientBuffer buffer, const EGLint *attr_list)
995 {
996 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
997 EGLint format, name, pitch, err;
998 _EGLImageAttribs attrs;
999 __DRIimage *dri_image;
1000
1001 name = (EGLint) (uintptr_t) buffer;
1002
1003 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1004 if (err != EGL_SUCCESS)
1005 return NULL;
1006
1007 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1008 attrs.DRMBufferStrideMESA <= 0) {
1009 _eglError(EGL_BAD_PARAMETER,
1010 "bad width, height or stride");
1011 return NULL;
1012 }
1013
1014 switch (attrs.DRMBufferFormatMESA) {
1015 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1016 format = __DRI_IMAGE_FORMAT_ARGB8888;
1017 pitch = attrs.DRMBufferStrideMESA;
1018 break;
1019 default:
1020 _eglError(EGL_BAD_PARAMETER,
1021 "dri2_create_image_khr: unsupported pixmap depth");
1022 return NULL;
1023 }
1024
1025 dri_image =
1026 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1027 attrs.Width,
1028 attrs.Height,
1029 format,
1030 name,
1031 pitch,
1032 NULL);
1033
1034 return dri2_create_image(disp, dri_image);
1035 }
1036
1037 #ifdef HAVE_WAYLAND_PLATFORM
1038
1039 /* This structure describes how a wl_buffer maps to one or more
1040 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1041 * offsets and strides of the planes in the buffer. This table maps a
1042 * wl_drm format code to a description of the planes in the buffer
1043 * that lets us create a __DRIimage for each of the planes. */
1044
1045 static const struct wl_drm_format_descriptor {
1046 uint32_t wl_format;
1047 EGLint components;
1048 int nplanes;
1049 struct {
1050 int buffer_index;
1051 int width_shift;
1052 int height_shift;
1053 uint32_t dri_format;
1054 int cpp;
1055 } planes[3];
1056 } wl_drm_formats[] = {
1057 { WL_DRM_FORMAT_ARGB8888, EGL_TEXTURE_RGBA, 1,
1058 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 }, } },
1059
1060 { WL_DRM_FORMAT_XRGB8888, EGL_TEXTURE_RGB, 1,
1061 { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888, 4 }, } },
1062
1063 { WL_DRM_FORMAT_YUV410, EGL_TEXTURE_Y_U_V_WL, 3,
1064 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1065 { 1, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 },
1066 { 2, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 } } },
1067
1068 { WL_DRM_FORMAT_YUV411, EGL_TEXTURE_Y_U_V_WL, 3,
1069 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1070 { 1, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1071 { 2, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1072
1073 { WL_DRM_FORMAT_YUV420, EGL_TEXTURE_Y_U_V_WL, 3,
1074 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1075 { 1, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 },
1076 { 2, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 } } },
1077
1078 { WL_DRM_FORMAT_YUV422, EGL_TEXTURE_Y_U_V_WL, 3,
1079 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1080 { 1, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1081 { 2, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1082
1083 { WL_DRM_FORMAT_YUV444, EGL_TEXTURE_Y_U_V_WL, 3,
1084 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1085 { 1, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1086 { 2, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1087
1088 { WL_DRM_FORMAT_NV12, EGL_TEXTURE_Y_UV_WL, 2,
1089 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1090 { 1, 1, 1, __DRI_IMAGE_FORMAT_GR88, 2 } } },
1091
1092 { WL_DRM_FORMAT_NV16, EGL_TEXTURE_Y_UV_WL, 2,
1093 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1094 { 1, 1, 0, __DRI_IMAGE_FORMAT_GR88, 2 } } },
1095
1096 /* For YUYV buffers, we set up two overlapping DRI images and treat
1097 * them as planar buffers in the compositors. Plane 0 is GR88 and
1098 * samples YU or YV pairs and places Y into the R component, while
1099 * plane 1 is ARGB and samples YUYV clusters and places pairs and
1100 * places U into the G component and V into A. This lets the
1101 * texture sampler interpolate the Y components correctly when
1102 * sampling from plane 0, and interpolate U and V correctly when
1103 * sampling from plane 1. */
1104 { WL_DRM_FORMAT_YUYV, EGL_TEXTURE_Y_XUXV_WL, 2,
1105 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
1106 { 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } }
1107 };
1108
1109 static _EGLImage *
1110 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1111 EGLClientBuffer _buffer,
1112 const EGLint *attr_list)
1113 {
1114 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1115 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1116 __DRIimage *dri_image;
1117 _EGLImageAttribs attrs;
1118 EGLint err;
1119 uint32_t format;
1120 int32_t offset, stride, plane, width, height;
1121 int cpp, index;
1122 const struct wl_drm_format_descriptor *f;
1123
1124 if (!wayland_buffer_is_drm(&buffer->buffer))
1125 return NULL;
1126
1127 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1128 plane = attrs.PlaneWL;
1129 if (err != EGL_SUCCESS) {
1130 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1131 return NULL;
1132 }
1133
1134 f = buffer->driver_format;
1135 if (plane < 0 || plane >= f->nplanes) {
1136 _eglError(EGL_BAD_PARAMETER,
1137 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1138 return NULL;
1139 }
1140
1141 width = buffer->buffer.width >> f->planes[plane].width_shift;
1142 height = buffer->buffer.height >> f->planes[plane].height_shift;
1143 format = f->planes[plane].dri_format;
1144 cpp = f->planes[plane].cpp;
1145 index = f->planes[plane].buffer_index;
1146 offset = buffer->offset[index];
1147 stride = buffer->stride[index];
1148
1149 dri_image = dri2_dpy->image->createSubImage(buffer->driver_buffer,
1150 width, height, format,
1151 offset, stride / cpp, NULL);
1152
1153 return dri2_create_image(disp, dri_image);
1154 }
1155 #endif
1156
1157 _EGLImage *
1158 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1159 _EGLContext *ctx, EGLenum target,
1160 EGLClientBuffer buffer, const EGLint *attr_list)
1161 {
1162 (void) drv;
1163
1164 switch (target) {
1165 case EGL_GL_RENDERBUFFER_KHR:
1166 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1167 case EGL_DRM_BUFFER_MESA:
1168 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1169 #ifdef HAVE_WAYLAND_PLATFORM
1170 case EGL_WAYLAND_BUFFER_WL:
1171 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1172 #endif
1173 default:
1174 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1175 return EGL_NO_IMAGE_KHR;
1176 }
1177 }
1178
1179 static EGLBoolean
1180 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1181 {
1182 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1183 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1184
1185 (void) drv;
1186
1187 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1188 free(dri2_img);
1189
1190 return EGL_TRUE;
1191 }
1192
1193 static _EGLImage *
1194 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1195 const EGLint *attr_list)
1196 {
1197 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1198 struct dri2_egl_image *dri2_img;
1199 _EGLImageAttribs attrs;
1200 unsigned int dri_use, valid_mask;
1201 int format;
1202 EGLint err = EGL_SUCCESS;
1203
1204 (void) drv;
1205
1206 dri2_img = malloc(sizeof *dri2_img);
1207 if (!dri2_img) {
1208 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1209 return EGL_NO_IMAGE_KHR;
1210 }
1211
1212 if (!attr_list) {
1213 err = EGL_BAD_PARAMETER;
1214 goto cleanup_img;
1215 }
1216
1217 if (!_eglInitImage(&dri2_img->base, disp)) {
1218 err = EGL_BAD_PARAMETER;
1219 goto cleanup_img;
1220 }
1221
1222 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1223 if (err != EGL_SUCCESS)
1224 goto cleanup_img;
1225
1226 if (attrs.Width <= 0 || attrs.Height <= 0) {
1227 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1228 attrs.Width, attrs.Height);
1229 goto cleanup_img;
1230 }
1231
1232 switch (attrs.DRMBufferFormatMESA) {
1233 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1234 format = __DRI_IMAGE_FORMAT_ARGB8888;
1235 break;
1236 default:
1237 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1238 attrs.DRMBufferFormatMESA);
1239 goto cleanup_img;
1240 }
1241
1242 valid_mask =
1243 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1244 EGL_DRM_BUFFER_USE_SHARE_MESA |
1245 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1246 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1247 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1248 attrs.DRMBufferUseMESA & ~valid_mask);
1249 goto cleanup_img;
1250 }
1251
1252 dri_use = 0;
1253 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1254 dri_use |= __DRI_IMAGE_USE_SHARE;
1255 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1256 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1257 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1258 dri_use |= __DRI_IMAGE_USE_CURSOR;
1259
1260 dri2_img->dri_image =
1261 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1262 attrs.Width, attrs.Height,
1263 format, dri_use, dri2_img);
1264 if (dri2_img->dri_image == NULL) {
1265 err = EGL_BAD_ALLOC;
1266 goto cleanup_img;
1267 }
1268
1269 return &dri2_img->base;
1270
1271 cleanup_img:
1272 free(dri2_img);
1273 _eglError(err, "dri2_create_drm_image_mesa");
1274
1275 return EGL_NO_IMAGE_KHR;
1276 }
1277
1278 static EGLBoolean
1279 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1280 EGLint *name, EGLint *handle, EGLint *stride)
1281 {
1282 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1283 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1284
1285 (void) drv;
1286
1287 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1288 __DRI_IMAGE_ATTRIB_NAME, name)) {
1289 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1290 return EGL_FALSE;
1291 }
1292
1293 if (handle)
1294 dri2_dpy->image->queryImage(dri2_img->dri_image,
1295 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1296
1297 if (stride)
1298 dri2_dpy->image->queryImage(dri2_img->dri_image,
1299 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1300
1301 return EGL_TRUE;
1302 }
1303
1304 #ifdef HAVE_WAYLAND_PLATFORM
1305
1306 static void
1307 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1308 struct wl_drm_buffer *buffer)
1309 {
1310 _EGLDisplay *disp = user_data;
1311 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1312 int i;
1313
1314 for (i = 0; i < ARRAY_SIZE(wl_drm_formats); i++)
1315 if (wl_drm_formats[i].wl_format == buffer->format) {
1316 buffer->driver_format = &wl_drm_formats[i];
1317 break;
1318 }
1319
1320 if (buffer->driver_format == NULL)
1321 return;
1322
1323 buffer->driver_buffer =
1324 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1325 buffer->buffer.width,
1326 buffer->buffer.height,
1327 __DRI_IMAGE_FORMAT_NONE, name,
1328 buffer->stride[0] / 4,
1329 NULL);
1330 }
1331
1332 static void
1333 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1334 {
1335 _EGLDisplay *disp = user_data;
1336 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1337
1338 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1339 }
1340
1341 static struct wayland_drm_callbacks wl_drm_callbacks = {
1342 .authenticate = NULL,
1343 .reference_buffer = dri2_wl_reference_buffer,
1344 .release_buffer = dri2_wl_release_buffer
1345 };
1346
1347 static EGLBoolean
1348 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1349 struct wl_display *wl_dpy)
1350 {
1351 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1352
1353 (void) drv;
1354
1355 if (dri2_dpy->wl_server_drm)
1356 return EGL_FALSE;
1357
1358 wl_drm_callbacks.authenticate =
1359 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1360
1361 dri2_dpy->wl_server_drm =
1362 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1363 &wl_drm_callbacks, disp);
1364
1365 if (!dri2_dpy->wl_server_drm)
1366 return EGL_FALSE;
1367
1368 return EGL_TRUE;
1369 }
1370
1371 static EGLBoolean
1372 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1373 struct wl_display *wl_dpy)
1374 {
1375 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1376
1377 (void) drv;
1378
1379 if (!dri2_dpy->wl_server_drm)
1380 return EGL_FALSE;
1381
1382 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1383 dri2_dpy->wl_server_drm = NULL;
1384
1385 return EGL_TRUE;
1386 }
1387
1388 static EGLBoolean
1389 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1390 struct wl_buffer *_buffer,
1391 EGLint attribute, EGLint *value)
1392 {
1393 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1394 const struct wl_drm_format_descriptor *format;
1395
1396 if (!wayland_buffer_is_drm(&buffer->buffer))
1397 return EGL_FALSE;
1398
1399 format = buffer->driver_format;
1400 switch (attribute) {
1401 case EGL_TEXTURE_FORMAT:
1402 *value = format->components;
1403 return EGL_TRUE;
1404 case EGL_WIDTH:
1405 *value = buffer->buffer.width;
1406 break;
1407 case EGL_HEIGHT:
1408 *value = buffer->buffer.height;
1409 break;
1410 }
1411
1412 return EGL_FALSE;
1413 }
1414 #endif
1415
1416 static void
1417 dri2_unload(_EGLDriver *drv)
1418 {
1419 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1420
1421 if (dri2_drv->handle)
1422 dlclose(dri2_drv->handle);
1423 free(dri2_drv);
1424 }
1425
1426 static EGLBoolean
1427 dri2_load(_EGLDriver *drv)
1428 {
1429 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1430 #ifdef HAVE_SHARED_GLAPI
1431 #ifdef HAVE_ANDROID_PLATFORM
1432 const char *libname = "libglapi.so";
1433 #else
1434 const char *libname = "libglapi.so.0";
1435 #endif
1436 #else
1437 /*
1438 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1439 * tell which one to load.
1440 */
1441 const char *libname = NULL;
1442 #endif
1443 void *handle;
1444
1445 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1446 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1447 if (handle) {
1448 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1449 dlsym(handle, "_glapi_get_proc_address");
1450 if (!dri2_drv->get_proc_address || !libname) {
1451 /* no need to keep a reference */
1452 dlclose(handle);
1453 handle = NULL;
1454 }
1455 }
1456
1457 /* if glapi is not available, loading DRI drivers will fail */
1458 if (!dri2_drv->get_proc_address) {
1459 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1460 return EGL_FALSE;
1461 }
1462
1463 dri2_drv->glFlush = (void (*)(void))
1464 dri2_drv->get_proc_address("glFlush");
1465
1466 dri2_drv->handle = handle;
1467
1468 return EGL_TRUE;
1469 }
1470
1471 /**
1472 * This is the main entrypoint into the driver, called by libEGL.
1473 * Create a new _EGLDriver object and init its dispatch table.
1474 */
1475 _EGLDriver *
1476 _eglBuiltInDriverDRI2(const char *args)
1477 {
1478 struct dri2_egl_driver *dri2_drv;
1479
1480 (void) args;
1481
1482 dri2_drv = malloc(sizeof *dri2_drv);
1483 if (!dri2_drv)
1484 return NULL;
1485
1486 memset(dri2_drv, 0, sizeof *dri2_drv);
1487
1488 if (!dri2_load(&dri2_drv->base)) {
1489 free(dri2_drv);
1490 return NULL;
1491 }
1492
1493 _eglInitDriverFallbacks(&dri2_drv->base);
1494 dri2_drv->base.API.Initialize = dri2_initialize;
1495 dri2_drv->base.API.Terminate = dri2_terminate;
1496 dri2_drv->base.API.CreateContext = dri2_create_context;
1497 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
1498 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1499 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1500 dri2_drv->base.API.WaitClient = dri2_wait_client;
1501 dri2_drv->base.API.WaitNative = dri2_wait_native;
1502 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1503 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1504 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1505 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1506 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1507 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1508 #ifdef HAVE_WAYLAND_PLATFORM
1509 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1510 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1511 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
1512 #endif
1513
1514 dri2_drv->base.Name = "DRI2";
1515 dri2_drv->base.Unload = dri2_unload;
1516
1517 return &dri2_drv->base;
1518 }