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egl: Add support for driconf control of swapinterval.
[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 conf->base.MinSwapInterval = dri2_dpy->min_swap_interval;
266 conf->base.MaxSwapInterval = dri2_dpy->max_swap_interval;
267 }
268
269 conf->base.SurfaceType |= surface_type;
270
271 return conf;
272 }
273
274 __DRIimage *
275 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
276 {
277 _EGLDisplay *disp = data;
278 struct dri2_egl_image *dri2_img;
279 _EGLImage *img;
280
281 (void) screen;
282
283 img = _eglLookupImage(image, disp);
284 if (img == NULL) {
285 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
286 return NULL;
287 }
288
289 dri2_img = dri2_egl_image(image);
290
291 return dri2_img->dri_image;
292 }
293
294 const __DRIimageLookupExtension image_lookup_extension = {
295 { __DRI_IMAGE_LOOKUP, 1 },
296 dri2_lookup_egl_image
297 };
298
299 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
300
301 struct dri2_extension_match {
302 const char *name;
303 int version;
304 int offset;
305 };
306
307 static struct dri2_extension_match dri2_driver_extensions[] = {
308 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
309 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
310 { NULL, 0, 0 }
311 };
312
313 static struct dri2_extension_match dri2_core_extensions[] = {
314 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
315 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
316 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
317 { NULL, 0, 0 }
318 };
319
320 static struct dri2_extension_match swrast_driver_extensions[] = {
321 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
322 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
323 { NULL, 0, 0 }
324 };
325
326 static struct dri2_extension_match swrast_core_extensions[] = {
327 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
328 { NULL, 0, 0 }
329 };
330
331 static EGLBoolean
332 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
333 struct dri2_extension_match *matches,
334 const __DRIextension **extensions)
335 {
336 int i, j, ret = EGL_TRUE;
337 void *field;
338
339 for (i = 0; extensions[i]; i++) {
340 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
341 for (j = 0; matches[j].name; j++) {
342 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
343 extensions[i]->version >= matches[j].version) {
344 field = ((char *) dri2_dpy + matches[j].offset);
345 *(const __DRIextension **) field = extensions[i];
346 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
347 extensions[i]->name, extensions[i]->version);
348 }
349 }
350 }
351
352 for (j = 0; matches[j].name; j++) {
353 field = ((char *) dri2_dpy + matches[j].offset);
354 if (*(const __DRIextension **) field == NULL) {
355 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
356 matches[j].name, matches[j].version);
357 ret = EGL_FALSE;
358 }
359 }
360
361 return ret;
362 }
363
364 static const __DRIextension **
365 dri2_open_driver(_EGLDisplay *disp)
366 {
367 struct dri2_egl_display *dri2_dpy = disp->DriverData;
368 const __DRIextension **extensions;
369 char path[PATH_MAX], *search_paths, *p, *next, *end;
370
371 search_paths = NULL;
372 if (geteuid() == getuid()) {
373 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
374 search_paths = getenv("LIBGL_DRIVERS_PATH");
375 }
376 if (search_paths == NULL)
377 search_paths = DEFAULT_DRIVER_DIR;
378
379 dri2_dpy->driver = NULL;
380 end = search_paths + strlen(search_paths);
381 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
382 int len;
383 next = strchr(p, ':');
384 if (next == NULL)
385 next = end;
386
387 len = next - p;
388 #if GLX_USE_TLS
389 snprintf(path, sizeof path,
390 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
391 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
392 #endif
393 if (dri2_dpy->driver == NULL) {
394 snprintf(path, sizeof path,
395 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
396 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
397 if (dri2_dpy->driver == NULL)
398 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
399 }
400 }
401
402 if (dri2_dpy->driver == NULL) {
403 _eglLog(_EGL_WARNING,
404 "DRI2: failed to open %s (search paths %s)",
405 dri2_dpy->driver_name, search_paths);
406 return NULL;
407 }
408
409 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
410 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
411 if (extensions == NULL) {
412 _eglLog(_EGL_WARNING,
413 "DRI2: driver exports no extensions (%s)", dlerror());
414 dlclose(dri2_dpy->driver);
415 }
416
417 return extensions;
418 }
419
420 EGLBoolean
421 dri2_load_driver(_EGLDisplay *disp)
422 {
423 struct dri2_egl_display *dri2_dpy = disp->DriverData;
424 const __DRIextension **extensions;
425
426 extensions = dri2_open_driver(disp);
427 if (!extensions)
428 return EGL_FALSE;
429
430 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
431 dlclose(dri2_dpy->driver);
432 return EGL_FALSE;
433 }
434
435 return EGL_TRUE;
436 }
437
438 EGLBoolean
439 dri2_load_driver_swrast(_EGLDisplay *disp)
440 {
441 struct dri2_egl_display *dri2_dpy = disp->DriverData;
442 const __DRIextension **extensions;
443
444 dri2_dpy->driver_name = "swrast";
445 extensions = dri2_open_driver(disp);
446
447 if (!extensions)
448 return EGL_FALSE;
449
450 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
451 dlclose(dri2_dpy->driver);
452 return EGL_FALSE;
453 }
454
455 return EGL_TRUE;
456 }
457
458 void
459 dri2_setup_screen(_EGLDisplay *disp)
460 {
461 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
462 unsigned int api_mask;
463
464 if (dri2_dpy->dri2) {
465 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
466 } else {
467 assert(dri2_dpy->swrast);
468 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
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 assert(dri2_dpy->dri2 || dri2_dpy->swrast);
480 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
481
482 if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
483 disp->Extensions.KHR_create_context = EGL_TRUE;
484
485 if (dri2_dpy->robustness)
486 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
487 }
488
489 if (dri2_dpy->image) {
490 disp->Extensions.MESA_drm_image = EGL_TRUE;
491 disp->Extensions.KHR_image_base = EGL_TRUE;
492 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
493 }
494 }
495
496 EGLBoolean
497 dri2_create_screen(_EGLDisplay *disp)
498 {
499 const __DRIextension **extensions;
500 struct dri2_egl_display *dri2_dpy;
501
502 dri2_dpy = disp->DriverData;
503
504 if (dri2_dpy->dri2) {
505 dri2_dpy->dri_screen =
506 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
507 &dri2_dpy->driver_configs, disp);
508 } else {
509 assert(dri2_dpy->swrast);
510 dri2_dpy->dri_screen =
511 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
512 &dri2_dpy->driver_configs, disp);
513 }
514
515 if (dri2_dpy->dri_screen == NULL) {
516 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
517 return EGL_FALSE;
518 }
519
520 dri2_dpy->own_dri_screen = 1;
521
522 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
523
524 if (dri2_dpy->dri2) {
525 unsigned i;
526
527 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
528 goto cleanup_dri_screen;
529
530 for (i = 0; extensions[i]; i++) {
531 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
532 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
533 }
534 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
535 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
536 }
537 }
538 } else {
539 assert(dri2_dpy->swrast);
540 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
541 goto cleanup_dri_screen;
542 }
543
544 dri2_setup_screen(disp);
545
546 return EGL_TRUE;
547
548 cleanup_dri_screen:
549 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
550
551 return EGL_FALSE;
552 }
553
554 /**
555 * Called via eglInitialize(), GLX_drv->API.Initialize().
556 */
557 static EGLBoolean
558 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
559 {
560 /* not until swrast_dri is supported */
561 if (disp->Options.UseFallback)
562 return EGL_FALSE;
563
564 switch (disp->Platform) {
565 #ifdef HAVE_X11_PLATFORM
566 case _EGL_PLATFORM_X11:
567 if (disp->Options.TestOnly)
568 return EGL_TRUE;
569 return dri2_initialize_x11(drv, disp);
570 #endif
571
572 #ifdef HAVE_LIBUDEV
573 #ifdef HAVE_DRM_PLATFORM
574 case _EGL_PLATFORM_DRM:
575 if (disp->Options.TestOnly)
576 return EGL_TRUE;
577 return dri2_initialize_drm(drv, disp);
578 #endif
579 #ifdef HAVE_WAYLAND_PLATFORM
580 case _EGL_PLATFORM_WAYLAND:
581 if (disp->Options.TestOnly)
582 return EGL_TRUE;
583 return dri2_initialize_wayland(drv, disp);
584 #endif
585 #endif
586 #ifdef HAVE_ANDROID_PLATFORM
587 case _EGL_PLATFORM_ANDROID:
588 if (disp->Options.TestOnly)
589 return EGL_TRUE;
590 return dri2_initialize_android(drv, disp);
591 #endif
592
593 default:
594 return EGL_FALSE;
595 }
596 }
597
598 /**
599 * Called via eglTerminate(), drv->API.Terminate().
600 */
601 static EGLBoolean
602 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
603 {
604 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
605
606 _eglReleaseDisplayResources(drv, disp);
607 _eglCleanupDisplay(disp);
608
609 if (dri2_dpy->own_dri_screen)
610 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
611 if (dri2_dpy->fd)
612 close(dri2_dpy->fd);
613 if (dri2_dpy->driver)
614 dlclose(dri2_dpy->driver);
615 free(dri2_dpy->device_name);
616
617 if (disp->PlatformDisplay == NULL) {
618 switch (disp->Platform) {
619 #ifdef HAVE_X11_PLATFORM
620 case _EGL_PLATFORM_X11:
621 xcb_disconnect(dri2_dpy->conn);
622 break;
623 #endif
624 #ifdef HAVE_DRM_PLATFORM
625 case _EGL_PLATFORM_DRM:
626 if (dri2_dpy->own_device) {
627 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
628 }
629 break;
630 #endif
631 default:
632 break;
633 }
634 }
635
636 free(dri2_dpy);
637 disp->DriverData = NULL;
638
639 return EGL_TRUE;
640 }
641
642
643 /**
644 * Called via eglCreateContext(), drv->API.CreateContext().
645 */
646 static _EGLContext *
647 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
648 _EGLContext *share_list, const EGLint *attrib_list)
649 {
650 struct dri2_egl_context *dri2_ctx;
651 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
652 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
653 __DRIcontext *shared =
654 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
655 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
656 const __DRIconfig *dri_config;
657 int api;
658
659 (void) drv;
660
661 dri2_ctx = malloc(sizeof *dri2_ctx);
662 if (!dri2_ctx) {
663 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
664 return NULL;
665 }
666
667 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
668 goto cleanup;
669
670 switch (dri2_ctx->base.ClientAPI) {
671 case EGL_OPENGL_ES_API:
672 switch (dri2_ctx->base.ClientMajorVersion) {
673 case 1:
674 api = __DRI_API_GLES;
675 break;
676 case 2:
677 case 3:
678 api = __DRI_API_GLES2;
679 break;
680 default:
681 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
682 return NULL;
683 }
684 break;
685 case EGL_OPENGL_API:
686 if ((dri2_ctx->base.ClientMajorVersion >= 4
687 || (dri2_ctx->base.ClientMajorVersion == 3
688 && dri2_ctx->base.ClientMinorVersion >= 2))
689 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
690 api = __DRI_API_OPENGL_CORE;
691 else
692 api = __DRI_API_OPENGL;
693 break;
694 default:
695 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
696 return NULL;
697 }
698
699 if (conf != NULL) {
700 /* The config chosen here isn't necessarily
701 * used for surfaces later.
702 * A pixmap surface will use the single config.
703 * This opportunity depends on disabling the
704 * doubleBufferMode check in
705 * src/mesa/main/context.c:check_compatible()
706 */
707 if (dri2_config->dri_double_config)
708 dri_config = dri2_config->dri_double_config;
709 else
710 dri_config = dri2_config->dri_single_config;
711
712 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
713 * makes sure the back buffer will always be used.
714 */
715 if (conf->SurfaceType & EGL_WINDOW_BIT)
716 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
717 }
718 else
719 dri_config = NULL;
720
721 if (dri2_dpy->dri2) {
722 if (dri2_dpy->dri2->base.version >= 3) {
723 unsigned error;
724 unsigned num_attribs = 0;
725 uint32_t ctx_attribs[8];
726
727 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
728 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMajorVersion;
729 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
730 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMinorVersion;
731
732 if (dri2_ctx->base.Flags != 0) {
733 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
734 * extension, don't even try to send it the robust-access flag.
735 * It may explode. Instead, generate the required EGL error here.
736 */
737 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
738 && !dri2_dpy->robustness) {
739 _eglError(EGL_BAD_MATCH, "eglCreateContext");
740 goto cleanup;
741 }
742
743 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
744 ctx_attribs[num_attribs++] = dri2_ctx->base.Flags;
745 }
746
747 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
748 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
749 * extension, don't even try to send it a reset strategy. It may
750 * explode. Instead, generate the required EGL error here.
751 */
752 if (!dri2_dpy->robustness) {
753 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
754 goto cleanup;
755 }
756
757 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
758 ctx_attribs[num_attribs++] = __DRI_CTX_RESET_LOSE_CONTEXT;
759 }
760
761 assert(num_attribs <= ARRAY_SIZE(ctx_attribs));
762
763 dri2_ctx->dri_context =
764 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
765 api,
766 dri_config,
767 shared,
768 num_attribs / 2,
769 ctx_attribs,
770 & error,
771 dri2_ctx);
772 } else {
773 dri2_ctx->dri_context =
774 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
775 api,
776 dri_config,
777 shared,
778 dri2_ctx);
779 }
780 } else {
781 assert(dri2_dpy->swrast);
782 dri2_ctx->dri_context =
783 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
784 api,
785 dri_config,
786 shared,
787 dri2_ctx);
788 }
789
790 if (!dri2_ctx->dri_context)
791 goto cleanup;
792
793 return &dri2_ctx->base;
794
795 cleanup:
796 free(dri2_ctx);
797 return NULL;
798 }
799
800 /**
801 * Called via eglDestroyContext(), drv->API.DestroyContext().
802 */
803 static EGLBoolean
804 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
805 {
806 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
807 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
808
809 if (_eglPutContext(ctx)) {
810 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
811 free(dri2_ctx);
812 }
813
814 return EGL_TRUE;
815 }
816
817 /**
818 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
819 */
820 static EGLBoolean
821 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
822 _EGLSurface *rsurf, _EGLContext *ctx)
823 {
824 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
825 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
826 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
827 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
828 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
829 _EGLContext *old_ctx;
830 _EGLSurface *old_dsurf, *old_rsurf;
831 __DRIdrawable *ddraw, *rdraw;
832 __DRIcontext *cctx;
833
834 /* make new bindings */
835 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
836 return EGL_FALSE;
837
838 /* flush before context switch */
839 if (old_ctx && dri2_drv->glFlush)
840 dri2_drv->glFlush();
841
842 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
843 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
844 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
845
846 if (old_ctx) {
847 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
848 dri2_dpy->core->unbindContext(old_cctx);
849 }
850
851 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
852 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
853 if (old_dsurf)
854 drv->API.DestroySurface(drv, disp, old_dsurf);
855 if (old_rsurf)
856 drv->API.DestroySurface(drv, disp, old_rsurf);
857 if (old_ctx)
858 drv->API.DestroyContext(drv, disp, old_ctx);
859
860 return EGL_TRUE;
861 } else {
862 /* undo the previous _eglBindContext */
863 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
864 assert(&dri2_ctx->base == ctx &&
865 &dri2_dsurf->base == dsurf &&
866 &dri2_rsurf->base == rsurf);
867
868 _eglPutSurface(dsurf);
869 _eglPutSurface(rsurf);
870 _eglPutContext(ctx);
871
872 _eglPutSurface(old_dsurf);
873 _eglPutSurface(old_rsurf);
874 _eglPutContext(old_ctx);
875
876 return EGL_FALSE;
877 }
878 }
879
880 /*
881 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
882 */
883 static _EGLProc
884 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
885 {
886 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
887
888 return dri2_drv->get_proc_address(procname);
889 }
890
891 static EGLBoolean
892 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
893 {
894 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
895 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
896
897 (void) drv;
898
899 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
900 * we need to copy fake to real here.*/
901
902 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
903
904 return EGL_TRUE;
905 }
906
907 static EGLBoolean
908 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
909 {
910 (void) drv;
911 (void) disp;
912
913 if (engine != EGL_CORE_NATIVE_ENGINE)
914 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
915 /* glXWaitX(); */
916
917 return EGL_TRUE;
918 }
919
920 static EGLBoolean
921 dri2_bind_tex_image(_EGLDriver *drv,
922 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
923 {
924 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
925 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
926 struct dri2_egl_context *dri2_ctx;
927 _EGLContext *ctx;
928 GLint format, target;
929
930 ctx = _eglGetCurrentContext();
931 dri2_ctx = dri2_egl_context(ctx);
932
933 if (!_eglBindTexImage(drv, disp, surf, buffer))
934 return EGL_FALSE;
935
936 switch (dri2_surf->base.TextureFormat) {
937 case EGL_TEXTURE_RGB:
938 format = __DRI_TEXTURE_FORMAT_RGB;
939 break;
940 case EGL_TEXTURE_RGBA:
941 format = __DRI_TEXTURE_FORMAT_RGBA;
942 break;
943 default:
944 assert(0);
945 }
946
947 switch (dri2_surf->base.TextureTarget) {
948 case EGL_TEXTURE_2D:
949 target = GL_TEXTURE_2D;
950 break;
951 default:
952 assert(0);
953 }
954
955 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
956 target, format,
957 dri2_surf->dri_drawable);
958
959 return EGL_TRUE;
960 }
961
962 static EGLBoolean
963 dri2_release_tex_image(_EGLDriver *drv,
964 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
965 {
966 #if __DRI_TEX_BUFFER_VERSION >= 3
967 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
968 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
969 struct dri2_egl_context *dri2_ctx;
970 _EGLContext *ctx;
971 GLint target;
972
973 ctx = _eglGetCurrentContext();
974 dri2_ctx = dri2_egl_context(ctx);
975
976 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
977 return EGL_FALSE;
978
979 switch (dri2_surf->base.TextureTarget) {
980 case EGL_TEXTURE_2D:
981 target = GL_TEXTURE_2D;
982 break;
983 default:
984 assert(0);
985 }
986 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
987 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
988 target,
989 dri2_surf->dri_drawable);
990 #endif
991
992 return EGL_TRUE;
993 }
994
995 static _EGLImage *
996 dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
997 {
998 struct dri2_egl_image *dri2_img;
999
1000 if (dri_image == NULL) {
1001 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1002 return NULL;
1003 }
1004
1005 dri2_img = malloc(sizeof *dri2_img);
1006 if (!dri2_img) {
1007 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1008 return NULL;
1009 }
1010
1011 if (!_eglInitImage(&dri2_img->base, disp)) {
1012 free(dri2_img);
1013 return NULL;
1014 }
1015
1016 dri2_img->dri_image = dri_image;
1017
1018 return &dri2_img->base;
1019 }
1020
1021 static _EGLImage *
1022 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1023 EGLClientBuffer buffer,
1024 const EGLint *attr_list)
1025 {
1026 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1027 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1028 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1029 __DRIimage *dri_image;
1030
1031 if (renderbuffer == 0) {
1032 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1033 return EGL_NO_IMAGE_KHR;
1034 }
1035
1036 dri_image =
1037 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1038 renderbuffer, NULL);
1039
1040 return dri2_create_image(disp, dri_image);
1041 }
1042
1043 static _EGLImage *
1044 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1045 EGLClientBuffer buffer, const EGLint *attr_list)
1046 {
1047 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1048 EGLint format, name, pitch, err;
1049 _EGLImageAttribs attrs;
1050 __DRIimage *dri_image;
1051
1052 name = (EGLint) (uintptr_t) buffer;
1053
1054 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1055 if (err != EGL_SUCCESS)
1056 return NULL;
1057
1058 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1059 attrs.DRMBufferStrideMESA <= 0) {
1060 _eglError(EGL_BAD_PARAMETER,
1061 "bad width, height or stride");
1062 return NULL;
1063 }
1064
1065 switch (attrs.DRMBufferFormatMESA) {
1066 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1067 format = __DRI_IMAGE_FORMAT_ARGB8888;
1068 pitch = attrs.DRMBufferStrideMESA;
1069 break;
1070 default:
1071 _eglError(EGL_BAD_PARAMETER,
1072 "dri2_create_image_khr: unsupported pixmap depth");
1073 return NULL;
1074 }
1075
1076 dri_image =
1077 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1078 attrs.Width,
1079 attrs.Height,
1080 format,
1081 name,
1082 pitch,
1083 NULL);
1084
1085 return dri2_create_image(disp, dri_image);
1086 }
1087
1088 #ifdef HAVE_WAYLAND_PLATFORM
1089
1090 /* This structure describes how a wl_buffer maps to one or more
1091 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1092 * offsets and strides of the planes in the buffer. This table maps a
1093 * wl_drm format code to a description of the planes in the buffer
1094 * that lets us create a __DRIimage for each of the planes. */
1095
1096 static const struct wl_drm_components_descriptor {
1097 uint32_t dri_components;
1098 EGLint components;
1099 int nplanes;
1100 } wl_drm_components[] = {
1101 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1102 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1103 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1104 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1105 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1106 };
1107
1108 static _EGLImage *
1109 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1110 EGLClientBuffer _buffer,
1111 const EGLint *attr_list)
1112 {
1113 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1114 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1115 const struct wl_drm_components_descriptor *f;
1116 __DRIimage *dri_image;
1117 _EGLImageAttribs attrs;
1118 EGLint err;
1119 int32_t plane;
1120
1121 if (!wayland_buffer_is_drm(&buffer->buffer))
1122 return NULL;
1123
1124 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1125 plane = attrs.PlaneWL;
1126 if (err != EGL_SUCCESS) {
1127 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1128 return NULL;
1129 }
1130
1131 f = buffer->driver_format;
1132 if (plane < 0 || plane >= f->nplanes) {
1133 _eglError(EGL_BAD_PARAMETER,
1134 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1135 return NULL;
1136 }
1137
1138 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1139
1140 if (dri_image == NULL) {
1141 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1142 return NULL;
1143 }
1144
1145 return dri2_create_image(disp, dri_image);
1146 }
1147 #endif
1148
1149 _EGLImage *
1150 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1151 _EGLContext *ctx, EGLenum target,
1152 EGLClientBuffer buffer, const EGLint *attr_list)
1153 {
1154 (void) drv;
1155
1156 switch (target) {
1157 case EGL_GL_RENDERBUFFER_KHR:
1158 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1159 case EGL_DRM_BUFFER_MESA:
1160 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1161 #ifdef HAVE_WAYLAND_PLATFORM
1162 case EGL_WAYLAND_BUFFER_WL:
1163 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1164 #endif
1165 default:
1166 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1167 return EGL_NO_IMAGE_KHR;
1168 }
1169 }
1170
1171 static EGLBoolean
1172 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1173 {
1174 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1175 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1176
1177 (void) drv;
1178
1179 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1180 free(dri2_img);
1181
1182 return EGL_TRUE;
1183 }
1184
1185 static _EGLImage *
1186 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1187 const EGLint *attr_list)
1188 {
1189 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1190 struct dri2_egl_image *dri2_img;
1191 _EGLImageAttribs attrs;
1192 unsigned int dri_use, valid_mask;
1193 int format;
1194 EGLint err = EGL_SUCCESS;
1195
1196 (void) drv;
1197
1198 dri2_img = malloc(sizeof *dri2_img);
1199 if (!dri2_img) {
1200 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1201 return EGL_NO_IMAGE_KHR;
1202 }
1203
1204 if (!attr_list) {
1205 err = EGL_BAD_PARAMETER;
1206 goto cleanup_img;
1207 }
1208
1209 if (!_eglInitImage(&dri2_img->base, disp)) {
1210 err = EGL_BAD_PARAMETER;
1211 goto cleanup_img;
1212 }
1213
1214 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1215 if (err != EGL_SUCCESS)
1216 goto cleanup_img;
1217
1218 if (attrs.Width <= 0 || attrs.Height <= 0) {
1219 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1220 attrs.Width, attrs.Height);
1221 goto cleanup_img;
1222 }
1223
1224 switch (attrs.DRMBufferFormatMESA) {
1225 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1226 format = __DRI_IMAGE_FORMAT_ARGB8888;
1227 break;
1228 default:
1229 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1230 attrs.DRMBufferFormatMESA);
1231 goto cleanup_img;
1232 }
1233
1234 valid_mask =
1235 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1236 EGL_DRM_BUFFER_USE_SHARE_MESA |
1237 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1238 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1239 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1240 attrs.DRMBufferUseMESA & ~valid_mask);
1241 goto cleanup_img;
1242 }
1243
1244 dri_use = 0;
1245 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1246 dri_use |= __DRI_IMAGE_USE_SHARE;
1247 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1248 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1249 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1250 dri_use |= __DRI_IMAGE_USE_CURSOR;
1251
1252 dri2_img->dri_image =
1253 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1254 attrs.Width, attrs.Height,
1255 format, dri_use, dri2_img);
1256 if (dri2_img->dri_image == NULL) {
1257 err = EGL_BAD_ALLOC;
1258 goto cleanup_img;
1259 }
1260
1261 return &dri2_img->base;
1262
1263 cleanup_img:
1264 free(dri2_img);
1265 _eglError(err, "dri2_create_drm_image_mesa");
1266
1267 return EGL_NO_IMAGE_KHR;
1268 }
1269
1270 static EGLBoolean
1271 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1272 EGLint *name, EGLint *handle, EGLint *stride)
1273 {
1274 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1275 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1276
1277 (void) drv;
1278
1279 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1280 __DRI_IMAGE_ATTRIB_NAME, name)) {
1281 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1282 return EGL_FALSE;
1283 }
1284
1285 if (handle)
1286 dri2_dpy->image->queryImage(dri2_img->dri_image,
1287 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1288
1289 if (stride)
1290 dri2_dpy->image->queryImage(dri2_img->dri_image,
1291 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1292
1293 return EGL_TRUE;
1294 }
1295
1296 #ifdef HAVE_WAYLAND_PLATFORM
1297
1298 static void
1299 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1300 struct wl_drm_buffer *buffer)
1301 {
1302 _EGLDisplay *disp = user_data;
1303 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1304 __DRIimage *img;
1305 int i, dri_components = 0;
1306
1307 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
1308 buffer->buffer.width,
1309 buffer->buffer.height,
1310 buffer->format, (int*)&name, 1,
1311 buffer->stride,
1312 buffer->offset,
1313 NULL);
1314
1315 if (img == NULL)
1316 return;
1317
1318 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
1319
1320 buffer->driver_format = NULL;
1321 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
1322 if (wl_drm_components[i].dri_components == dri_components)
1323 buffer->driver_format = &wl_drm_components[i];
1324
1325 if (buffer->driver_format == NULL)
1326 dri2_dpy->image->destroyImage(img);
1327 else
1328 buffer->driver_buffer = img;
1329 }
1330
1331 static void
1332 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1333 {
1334 _EGLDisplay *disp = user_data;
1335 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1336
1337 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1338 }
1339
1340 static struct wayland_drm_callbacks wl_drm_callbacks = {
1341 .authenticate = NULL,
1342 .reference_buffer = dri2_wl_reference_buffer,
1343 .release_buffer = dri2_wl_release_buffer
1344 };
1345
1346 static EGLBoolean
1347 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1348 struct wl_display *wl_dpy)
1349 {
1350 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1351
1352 (void) drv;
1353
1354 if (dri2_dpy->wl_server_drm)
1355 return EGL_FALSE;
1356
1357 wl_drm_callbacks.authenticate =
1358 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1359
1360 dri2_dpy->wl_server_drm =
1361 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1362 &wl_drm_callbacks, disp);
1363
1364 if (!dri2_dpy->wl_server_drm)
1365 return EGL_FALSE;
1366
1367 return EGL_TRUE;
1368 }
1369
1370 static EGLBoolean
1371 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1372 struct wl_display *wl_dpy)
1373 {
1374 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1375
1376 (void) drv;
1377
1378 if (!dri2_dpy->wl_server_drm)
1379 return EGL_FALSE;
1380
1381 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1382 dri2_dpy->wl_server_drm = NULL;
1383
1384 return EGL_TRUE;
1385 }
1386
1387 static EGLBoolean
1388 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1389 struct wl_buffer *_buffer,
1390 EGLint attribute, EGLint *value)
1391 {
1392 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1393 const struct wl_drm_components_descriptor *format;
1394
1395 if (!wayland_buffer_is_drm(&buffer->buffer))
1396 return EGL_FALSE;
1397
1398 format = buffer->driver_format;
1399 switch (attribute) {
1400 case EGL_TEXTURE_FORMAT:
1401 *value = format->components;
1402 return EGL_TRUE;
1403 case EGL_WIDTH:
1404 *value = buffer->buffer.width;
1405 break;
1406 case EGL_HEIGHT:
1407 *value = buffer->buffer.height;
1408 break;
1409 }
1410
1411 return EGL_FALSE;
1412 }
1413 #endif
1414
1415 static void
1416 dri2_unload(_EGLDriver *drv)
1417 {
1418 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1419
1420 if (dri2_drv->handle)
1421 dlclose(dri2_drv->handle);
1422 free(dri2_drv);
1423 }
1424
1425 static EGLBoolean
1426 dri2_load(_EGLDriver *drv)
1427 {
1428 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1429 #ifdef HAVE_SHARED_GLAPI
1430 #ifdef HAVE_ANDROID_PLATFORM
1431 const char *libname = "libglapi.so";
1432 #else
1433 const char *libname = "libglapi.so.0";
1434 #endif
1435 #else
1436 /*
1437 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1438 * tell which one to load.
1439 */
1440 const char *libname = NULL;
1441 #endif
1442 void *handle;
1443
1444 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1445 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1446 if (handle) {
1447 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1448 dlsym(handle, "_glapi_get_proc_address");
1449 if (!dri2_drv->get_proc_address || !libname) {
1450 /* no need to keep a reference */
1451 dlclose(handle);
1452 handle = NULL;
1453 }
1454 }
1455
1456 /* if glapi is not available, loading DRI drivers will fail */
1457 if (!dri2_drv->get_proc_address) {
1458 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1459 return EGL_FALSE;
1460 }
1461
1462 dri2_drv->glFlush = (void (*)(void))
1463 dri2_drv->get_proc_address("glFlush");
1464
1465 dri2_drv->handle = handle;
1466
1467 return EGL_TRUE;
1468 }
1469
1470 /**
1471 * This is the main entrypoint into the driver, called by libEGL.
1472 * Create a new _EGLDriver object and init its dispatch table.
1473 */
1474 _EGLDriver *
1475 _eglBuiltInDriverDRI2(const char *args)
1476 {
1477 struct dri2_egl_driver *dri2_drv;
1478
1479 (void) args;
1480
1481 dri2_drv = calloc(1, sizeof *dri2_drv);
1482 if (!dri2_drv)
1483 return NULL;
1484
1485 if (!dri2_load(&dri2_drv->base)) {
1486 free(dri2_drv);
1487 return NULL;
1488 }
1489
1490 _eglInitDriverFallbacks(&dri2_drv->base);
1491 dri2_drv->base.API.Initialize = dri2_initialize;
1492 dri2_drv->base.API.Terminate = dri2_terminate;
1493 dri2_drv->base.API.CreateContext = dri2_create_context;
1494 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
1495 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1496 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1497 dri2_drv->base.API.WaitClient = dri2_wait_client;
1498 dri2_drv->base.API.WaitNative = dri2_wait_native;
1499 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1500 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1501 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1502 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1503 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1504 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1505 #ifdef HAVE_WAYLAND_PLATFORM
1506 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1507 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1508 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
1509 #endif
1510
1511 dri2_drv->base.Name = "DRI2";
1512 dri2_drv->base.Unload = dri2_unload;
1513
1514 return &dri2_drv->base;
1515 }