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[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include <stdio.h>
31 #include <limits.h>
32 #include <dlfcn.h>
33 #include <fcntl.h>
34 #include <errno.h>
35 #include <unistd.h>
36 #include <xf86drm.h>
37 #include <GL/gl.h>
38 #include <GL/internal/dri_interface.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41
42 #include "egl_dri2.h"
43
44 const __DRIuseInvalidateExtension use_invalidate = {
45 { __DRI_USE_INVALIDATE, 1 }
46 };
47
48 EGLint dri2_to_egl_attribute_map[] = {
49 0,
50 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
51 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
52 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
53 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
54 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
55 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
56 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
57 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
58 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
59 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
60 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
61 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
62 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
63 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
64 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
65 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
66 0, /* __DRI_ATTRIB_RENDER_TYPE, */
67 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
68 0, /* __DRI_ATTRIB_CONFORMANT */
69 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
70 0, /* __DRI_ATTRIB_STEREO */
71 0, /* __DRI_ATTRIB_AUX_BUFFERS */
72 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
73 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
74 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
75 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
76 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
77 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
78 0, /* __DRI_ATTRIB_FLOAT_MODE */
79 0, /* __DRI_ATTRIB_RED_MASK */
80 0, /* __DRI_ATTRIB_GREEN_MASK */
81 0, /* __DRI_ATTRIB_BLUE_MASK */
82 0, /* __DRI_ATTRIB_ALPHA_MASK */
83 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
84 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
85 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
86 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
87 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
88 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
89 0, /* __DRI_ATTRIB_SWAP_METHOD */
90 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
91 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
92 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
93 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
94 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
95 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
96 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
97 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
98 };
99
100 static EGLBoolean
101 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
102 {
103 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
104 return EGL_FALSE;
105
106 if (!_eglMatchConfig(conf, criteria))
107 return EGL_FALSE;
108
109 return EGL_TRUE;
110 }
111
112 struct dri2_egl_config *
113 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
114 int depth, EGLint surface_type, const EGLint *attr_list,
115 const unsigned int *rgba_masks)
116 {
117 struct dri2_egl_config *conf;
118 struct dri2_egl_display *dri2_dpy;
119 _EGLConfig base;
120 unsigned int attrib, value, double_buffer;
121 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
122 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
123 _EGLConfig *matching_config;
124 EGLint num_configs = 0;
125 EGLint config_id;
126 int i;
127
128 dri2_dpy = disp->DriverData;
129 _eglInitConfig(&base, disp, id);
130
131 i = 0;
132 double_buffer = 0;
133 bind_to_texture_rgb = 0;
134 bind_to_texture_rgba = 0;
135
136 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
137 switch (attrib) {
138 case __DRI_ATTRIB_RENDER_TYPE:
139 if (value & __DRI_ATTRIB_RGBA_BIT)
140 value = EGL_RGB_BUFFER;
141 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
142 value = EGL_LUMINANCE_BUFFER;
143 else
144 /* not valid */;
145 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
146 break;
147
148 case __DRI_ATTRIB_CONFIG_CAVEAT:
149 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
150 value = EGL_NON_CONFORMANT_CONFIG;
151 else if (value & __DRI_ATTRIB_SLOW_BIT)
152 value = EGL_SLOW_CONFIG;
153 else
154 value = EGL_NONE;
155 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
156 break;
157
158 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
159 bind_to_texture_rgb = value;
160 break;
161
162 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
163 bind_to_texture_rgba = value;
164 break;
165
166 case __DRI_ATTRIB_DOUBLE_BUFFER:
167 double_buffer = value;
168 break;
169
170 case __DRI_ATTRIB_RED_MASK:
171 dri_masks[0] = value;
172 break;
173
174 case __DRI_ATTRIB_GREEN_MASK:
175 dri_masks[1] = value;
176 break;
177
178 case __DRI_ATTRIB_BLUE_MASK:
179 dri_masks[2] = value;
180 break;
181
182 case __DRI_ATTRIB_ALPHA_MASK:
183 dri_masks[3] = value;
184 break;
185
186 default:
187 key = dri2_to_egl_attribute_map[attrib];
188 if (key != 0)
189 _eglSetConfigKey(&base, key, value);
190 break;
191 }
192 }
193
194 if (attr_list)
195 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
196 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
197
198 if (depth > 0 && depth != base.BufferSize)
199 return NULL;
200
201 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
202 return NULL;
203
204 base.NativeRenderable = EGL_TRUE;
205
206 base.SurfaceType = surface_type;
207 if (surface_type & (EGL_PBUFFER_BIT |
208 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
209 base.BindToTextureRGB = bind_to_texture_rgb;
210 if (base.AlphaSize > 0)
211 base.BindToTextureRGBA = bind_to_texture_rgba;
212 }
213
214 base.RenderableType = disp->ClientAPIs;
215 base.Conformant = disp->ClientAPIs;
216
217 if (!_eglValidateConfig(&base, EGL_FALSE)) {
218 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
219 return NULL;
220 }
221
222 config_id = base.ConfigID;
223 base.ConfigID = EGL_DONT_CARE;
224 base.SurfaceType = EGL_DONT_CARE;
225 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
226 (_EGLArrayForEach) dri2_match_config, &base);
227
228 if (num_configs == 1) {
229 conf = (struct dri2_egl_config *) matching_config;
230
231 if (double_buffer && !conf->dri_double_config)
232 conf->dri_double_config = dri_config;
233 else if (!double_buffer && !conf->dri_single_config)
234 conf->dri_single_config = dri_config;
235 else
236 /* a similar config type is already added (unlikely) => discard */
237 return NULL;
238 }
239 else if (num_configs == 0) {
240 conf = malloc(sizeof *conf);
241 if (conf == NULL)
242 return NULL;
243
244 memcpy(&conf->base, &base, sizeof base);
245 if (double_buffer) {
246 conf->dri_double_config = dri_config;
247 conf->dri_single_config = NULL;
248 } else {
249 conf->dri_single_config = dri_config;
250 conf->dri_double_config = NULL;
251 }
252 conf->base.SurfaceType = 0;
253 conf->base.ConfigID = config_id;
254
255 _eglLinkConfig(&conf->base);
256 }
257 else {
258 assert(0);
259 return NULL;
260 }
261
262 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 if (dri2_dpy->swrast->base.version >= 2)
474 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
475 else
476 api_mask = 1 << __DRI_API_OPENGL;
477 }
478
479 disp->ClientAPIs = 0;
480 if (api_mask & (1 <<__DRI_API_OPENGL))
481 disp->ClientAPIs |= EGL_OPENGL_BIT;
482 if (api_mask & (1 <<__DRI_API_GLES))
483 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
484 if (api_mask & (1 << __DRI_API_GLES2))
485 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
486
487 if (dri2_dpy->dri2) {
488 if (dri2_dpy->dri2->base.version >= 2) {
489 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
490 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
491 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
492 }
493 } else {
494 assert(dri2_dpy->swrast);
495 if (dri2_dpy->swrast->base.version >= 2) {
496 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
497 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
498 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
499 }
500 }
501
502 if (dri2_dpy->image) {
503 disp->Extensions.MESA_drm_image = EGL_TRUE;
504 disp->Extensions.KHR_image_base = EGL_TRUE;
505 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
506 }
507 }
508
509 EGLBoolean
510 dri2_create_screen(_EGLDisplay *disp)
511 {
512 const __DRIextension **extensions;
513 struct dri2_egl_display *dri2_dpy;
514
515 dri2_dpy = disp->DriverData;
516
517 if (dri2_dpy->dri2) {
518 dri2_dpy->dri_screen =
519 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
520 &dri2_dpy->driver_configs, disp);
521 } else {
522 assert(dri2_dpy->swrast);
523 dri2_dpy->dri_screen =
524 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
525 &dri2_dpy->driver_configs, disp);
526 }
527
528 if (dri2_dpy->dri_screen == NULL) {
529 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
530 return EGL_FALSE;
531 }
532
533 dri2_dpy->own_dri_screen = 1;
534
535 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
536
537 if (dri2_dpy->dri2) {
538 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
539 goto cleanup_dri_screen;
540 } else {
541 assert(dri2_dpy->swrast);
542 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
543 goto cleanup_dri_screen;
544 }
545
546 dri2_setup_screen(disp);
547
548 return EGL_TRUE;
549
550 cleanup_dri_screen:
551 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
552
553 return EGL_FALSE;
554 }
555
556 /**
557 * Called via eglInitialize(), GLX_drv->API.Initialize().
558 */
559 static EGLBoolean
560 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
561 {
562 /* not until swrast_dri is supported */
563 if (disp->Options.UseFallback)
564 return EGL_FALSE;
565
566 switch (disp->Platform) {
567 #ifdef HAVE_X11_PLATFORM
568 case _EGL_PLATFORM_X11:
569 if (disp->Options.TestOnly)
570 return EGL_TRUE;
571 return dri2_initialize_x11(drv, disp);
572 #endif
573
574 #ifdef HAVE_LIBUDEV
575 #ifdef HAVE_DRM_PLATFORM
576 case _EGL_PLATFORM_DRM:
577 if (disp->Options.TestOnly)
578 return EGL_TRUE;
579 return dri2_initialize_drm(drv, disp);
580 #endif
581 #ifdef HAVE_WAYLAND_PLATFORM
582 case _EGL_PLATFORM_WAYLAND:
583 if (disp->Options.TestOnly)
584 return EGL_TRUE;
585 return dri2_initialize_wayland(drv, disp);
586 #endif
587 #endif
588 #ifdef HAVE_ANDROID_PLATFORM
589 case _EGL_PLATFORM_ANDROID:
590 if (disp->Options.TestOnly)
591 return EGL_TRUE;
592 return dri2_initialize_android(drv, disp);
593 #endif
594
595 default:
596 return EGL_FALSE;
597 }
598 }
599
600 /**
601 * Called via eglTerminate(), drv->API.Terminate().
602 */
603 static EGLBoolean
604 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
605 {
606 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
607
608 _eglReleaseDisplayResources(drv, disp);
609 _eglCleanupDisplay(disp);
610
611 if (dri2_dpy->own_dri_screen)
612 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
613 if (dri2_dpy->fd)
614 close(dri2_dpy->fd);
615 if (dri2_dpy->driver)
616 dlclose(dri2_dpy->driver);
617 if (dri2_dpy->device_name)
618 free(dri2_dpy->device_name);
619
620 if (disp->PlatformDisplay == NULL) {
621 switch (disp->Platform) {
622 #ifdef HAVE_X11_PLATFORM
623 case _EGL_PLATFORM_X11:
624 xcb_disconnect(dri2_dpy->conn);
625 break;
626 #endif
627 #ifdef HAVE_DRM_PLATFORM
628 case _EGL_PLATFORM_DRM:
629 if (dri2_dpy->own_device) {
630 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
631 }
632 break;
633 #endif
634 default:
635 break;
636 }
637 }
638
639 free(dri2_dpy);
640 disp->DriverData = NULL;
641
642 return EGL_TRUE;
643 }
644
645
646 /**
647 * Called via eglCreateContext(), drv->API.CreateContext().
648 */
649 static _EGLContext *
650 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
651 _EGLContext *share_list, const EGLint *attrib_list)
652 {
653 struct dri2_egl_context *dri2_ctx;
654 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
655 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
656 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
657 const __DRIconfig *dri_config;
658 int api;
659
660 (void) drv;
661
662 dri2_ctx = malloc(sizeof *dri2_ctx);
663 if (!dri2_ctx) {
664 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
665 return NULL;
666 }
667
668 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
669 goto cleanup;
670
671 switch (dri2_ctx->base.ClientAPI) {
672 case EGL_OPENGL_ES_API:
673 switch (dri2_ctx->base.ClientVersion) {
674 case 1:
675 api = __DRI_API_GLES;
676 break;
677 case 2:
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 api = __DRI_API_OPENGL;
687 break;
688 default:
689 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
690 return NULL;
691 }
692
693 if (conf != NULL) {
694 /* The config chosen here isn't necessarily
695 * used for surfaces later.
696 * A pixmap surface will use the single config.
697 * This opportunity depends on disabling the
698 * doubleBufferMode check in
699 * src/mesa/main/context.c:check_compatible()
700 */
701 if (dri2_config->dri_double_config)
702 dri_config = dri2_config->dri_double_config;
703 else
704 dri_config = dri2_config->dri_single_config;
705
706 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
707 * makes sure the back buffer will always be used.
708 */
709 if (conf->SurfaceType & EGL_WINDOW_BIT)
710 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
711 }
712 else
713 dri_config = NULL;
714
715 if (dri2_dpy->dri2) {
716 if (dri2_dpy->dri2->base.version >= 2) {
717 dri2_ctx->dri_context =
718 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
719 api,
720 dri_config,
721 dri2_ctx_shared ?
722 dri2_ctx_shared->dri_context : NULL,
723 dri2_ctx);
724 } else if (api == __DRI_API_OPENGL) {
725 dri2_ctx->dri_context =
726 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
727 dri_config,
728 dri2_ctx_shared ?
729 dri2_ctx_shared->dri_context : NULL,
730 dri2_ctx);
731 } else {
732 /* fail */
733 }
734 } else {
735 assert(dri2_dpy->swrast);
736 if (dri2_dpy->swrast->base.version >= 2) {
737 dri2_ctx->dri_context =
738 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
739 api,
740 dri_config,
741 dri2_ctx_shared ?
742 dri2_ctx_shared->dri_context : NULL,
743 dri2_ctx);
744 } else if (api == __DRI_API_OPENGL) {
745 dri2_ctx->dri_context =
746 dri2_dpy->core->createNewContext(dri2_dpy->dri_screen,
747 dri_config,
748 dri2_ctx_shared ?
749 dri2_ctx_shared->dri_context : NULL,
750 dri2_ctx);
751 } else {
752 /* fail */
753 }
754 }
755
756 if (!dri2_ctx->dri_context)
757 goto cleanup;
758
759 return &dri2_ctx->base;
760
761 cleanup:
762 free(dri2_ctx);
763 return NULL;
764 }
765
766 /**
767 * Called via eglDestroyContext(), drv->API.DestroyContext().
768 */
769 static EGLBoolean
770 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
771 {
772 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
773 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
774
775 if (_eglPutContext(ctx)) {
776 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
777 free(dri2_ctx);
778 }
779
780 return EGL_TRUE;
781 }
782
783 /**
784 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
785 */
786 static EGLBoolean
787 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
788 _EGLSurface *rsurf, _EGLContext *ctx)
789 {
790 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
791 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
792 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
793 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
794 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
795 _EGLContext *old_ctx;
796 _EGLSurface *old_dsurf, *old_rsurf;
797 __DRIdrawable *ddraw, *rdraw;
798 __DRIcontext *cctx;
799
800 /* make new bindings */
801 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
802 return EGL_FALSE;
803
804 /* flush before context switch */
805 if (old_ctx && dri2_drv->glFlush)
806 dri2_drv->glFlush();
807
808 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
809 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
810 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
811
812 if (old_ctx) {
813 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
814 dri2_dpy->core->unbindContext(old_cctx);
815 }
816
817 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
818 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
819 if (old_dsurf)
820 drv->API.DestroySurface(drv, disp, old_dsurf);
821 if (old_rsurf)
822 drv->API.DestroySurface(drv, disp, old_rsurf);
823 if (old_ctx)
824 drv->API.DestroyContext(drv, disp, old_ctx);
825
826 return EGL_TRUE;
827 } else {
828 /* undo the previous _eglBindContext */
829 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
830 assert(&dri2_ctx->base == ctx &&
831 &dri2_dsurf->base == dsurf &&
832 &dri2_rsurf->base == rsurf);
833
834 _eglPutSurface(dsurf);
835 _eglPutSurface(rsurf);
836 _eglPutContext(ctx);
837
838 _eglPutSurface(old_dsurf);
839 _eglPutSurface(old_rsurf);
840 _eglPutContext(old_ctx);
841
842 return EGL_FALSE;
843 }
844 }
845
846 /*
847 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
848 */
849 static _EGLProc
850 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
851 {
852 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
853
854 return dri2_drv->get_proc_address(procname);
855 }
856
857 static EGLBoolean
858 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
859 {
860 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
861 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
862
863 (void) drv;
864
865 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
866 * we need to copy fake to real here.*/
867
868 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
869
870 return EGL_TRUE;
871 }
872
873 static EGLBoolean
874 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
875 {
876 (void) drv;
877 (void) disp;
878
879 if (engine != EGL_CORE_NATIVE_ENGINE)
880 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
881 /* glXWaitX(); */
882
883 return EGL_TRUE;
884 }
885
886 static EGLBoolean
887 dri2_bind_tex_image(_EGLDriver *drv,
888 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
889 {
890 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
891 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
892 struct dri2_egl_context *dri2_ctx;
893 _EGLContext *ctx;
894 GLint format, target;
895
896 ctx = _eglGetCurrentContext();
897 dri2_ctx = dri2_egl_context(ctx);
898
899 if (!_eglBindTexImage(drv, disp, surf, buffer))
900 return EGL_FALSE;
901
902 switch (dri2_surf->base.TextureFormat) {
903 case EGL_TEXTURE_RGB:
904 format = __DRI_TEXTURE_FORMAT_RGB;
905 break;
906 case EGL_TEXTURE_RGBA:
907 format = __DRI_TEXTURE_FORMAT_RGBA;
908 break;
909 default:
910 assert(0);
911 }
912
913 switch (dri2_surf->base.TextureTarget) {
914 case EGL_TEXTURE_2D:
915 target = GL_TEXTURE_2D;
916 break;
917 default:
918 assert(0);
919 }
920
921 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
922 target, format,
923 dri2_surf->dri_drawable);
924
925 return EGL_TRUE;
926 }
927
928 static EGLBoolean
929 dri2_release_tex_image(_EGLDriver *drv,
930 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
931 {
932 #if __DRI_TEX_BUFFER_VERSION >= 3
933 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
934 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
935 struct dri2_egl_context *dri2_ctx;
936 _EGLContext *ctx;
937 GLint target;
938
939 ctx = _eglGetCurrentContext();
940 dri2_ctx = dri2_egl_context(ctx);
941
942 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
943 return EGL_FALSE;
944
945 switch (dri2_surf->base.TextureTarget) {
946 case EGL_TEXTURE_2D:
947 target = GL_TEXTURE_2D;
948 break;
949 default:
950 assert(0);
951 }
952 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
953 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
954 target,
955 dri2_surf->dri_drawable);
956 #endif
957
958 return EGL_TRUE;
959 }
960
961 static _EGLImage *
962 dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
963 {
964 struct dri2_egl_image *dri2_img;
965
966 if (dri_image == NULL) {
967 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
968 return NULL;
969 }
970
971 dri2_img = malloc(sizeof *dri2_img);
972 if (!dri2_img) {
973 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
974 return NULL;
975 }
976
977 if (!_eglInitImage(&dri2_img->base, disp)) {
978 free(dri2_img);
979 return NULL;
980 }
981
982 dri2_img->dri_image = dri_image;
983
984 return &dri2_img->base;
985 }
986
987 static _EGLImage *
988 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
989 EGLClientBuffer buffer,
990 const EGLint *attr_list)
991 {
992 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
993 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
994 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
995 __DRIimage *dri_image;
996
997 if (renderbuffer == 0) {
998 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
999 return EGL_NO_IMAGE_KHR;
1000 }
1001
1002 dri_image =
1003 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1004 renderbuffer, NULL);
1005
1006 return dri2_create_image(disp, dri_image);
1007 }
1008
1009 static _EGLImage *
1010 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1011 EGLClientBuffer buffer, const EGLint *attr_list)
1012 {
1013 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1014 EGLint format, name, pitch, err;
1015 _EGLImageAttribs attrs;
1016 __DRIimage *dri_image;
1017
1018 name = (EGLint) (uintptr_t) buffer;
1019
1020 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1021 if (err != EGL_SUCCESS)
1022 return NULL;
1023
1024 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1025 attrs.DRMBufferStrideMESA <= 0) {
1026 _eglError(EGL_BAD_PARAMETER,
1027 "bad width, height or stride");
1028 return NULL;
1029 }
1030
1031 switch (attrs.DRMBufferFormatMESA) {
1032 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1033 format = __DRI_IMAGE_FORMAT_ARGB8888;
1034 pitch = attrs.DRMBufferStrideMESA;
1035 break;
1036 default:
1037 _eglError(EGL_BAD_PARAMETER,
1038 "dri2_create_image_khr: unsupported pixmap depth");
1039 return NULL;
1040 }
1041
1042 dri_image =
1043 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1044 attrs.Width,
1045 attrs.Height,
1046 format,
1047 name,
1048 pitch,
1049 NULL);
1050
1051 return dri2_create_image(disp, dri_image);
1052 }
1053
1054 #ifdef HAVE_WAYLAND_PLATFORM
1055
1056 /* This structure describes how a wl_buffer maps to one or more
1057 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1058 * offsets and strides of the planes in the buffer. This table maps a
1059 * wl_drm format code to a description of the planes in the buffer
1060 * that lets us create a __DRIimage for each of the planes. */
1061
1062 static const struct wl_drm_format_descriptor {
1063 uint32_t wl_format;
1064 EGLint components;
1065 int nplanes;
1066 struct {
1067 int buffer_index;
1068 int width_shift;
1069 int height_shift;
1070 uint32_t dri_format;
1071 int cpp;
1072 } planes[3];
1073 } wl_drm_formats[] = {
1074 { WL_DRM_FORMAT_ARGB8888, EGL_WAYLAND_BUFFER_RGBA_WL, 1,
1075 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 }, } },
1076
1077 { WL_DRM_FORMAT_XRGB8888, EGL_WAYLAND_BUFFER_RGB_WL, 1,
1078 { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888, 4 }, } },
1079
1080 { WL_DRM_FORMAT_YUV410, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
1081 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1082 { 1, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 },
1083 { 2, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 } } },
1084
1085 { WL_DRM_FORMAT_YUV411, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
1086 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1087 { 1, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1088 { 2, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1089
1090 { WL_DRM_FORMAT_YUV420, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
1091 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1092 { 1, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 },
1093 { 2, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 } } },
1094
1095 { WL_DRM_FORMAT_YUV422, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
1096 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1097 { 1, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1098 { 2, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1099
1100 { WL_DRM_FORMAT_YUV444, EGL_WAYLAND_BUFFER_Y_U_V_WL, 3,
1101 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1102 { 1, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1103 { 2, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1104
1105 { WL_DRM_FORMAT_NV12, EGL_WAYLAND_BUFFER_Y_UV_WL, 2,
1106 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1107 { 1, 1, 1, __DRI_IMAGE_FORMAT_GR88, 2 } } },
1108
1109 { WL_DRM_FORMAT_NV16, EGL_WAYLAND_BUFFER_Y_UV_WL, 2,
1110 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1111 { 1, 1, 0, __DRI_IMAGE_FORMAT_GR88, 2 } } },
1112
1113 /* For YUYV buffers, we set up two overlapping DRI images and treat
1114 * them as planar buffers in the compositors. Plane 0 is GR88 and
1115 * samples YU or YV pairs and places Y into the R component, while
1116 * plane 1 is ARGB and samples YUYV clusters and places pairs and
1117 * places U into the G component and V into A. This lets the
1118 * texture sampler interpolate the Y components correctly when
1119 * sampling from plane 0, and interpolate U and V correctly when
1120 * sampling from plane 1. */
1121 { WL_DRM_FORMAT_YUYV, EGL_WAYLAND_BUFFER_Y_XUXV_WL, 2,
1122 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
1123 { 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } }
1124 };
1125
1126 static _EGLImage *
1127 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1128 EGLClientBuffer _buffer,
1129 const EGLint *attr_list)
1130 {
1131 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1132 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1133 __DRIimage *dri_image;
1134 _EGLImageAttribs attrs;
1135 EGLint err;
1136 uint32_t format;
1137 int32_t offset, stride, plane, width, height;
1138 int cpp, index;
1139 const struct wl_drm_format_descriptor *f;
1140
1141 if (!wayland_buffer_is_drm(&buffer->buffer))
1142 return NULL;
1143
1144 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1145 plane = attrs.PlaneWL;
1146 if (err != EGL_SUCCESS) {
1147 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1148 return NULL;
1149 }
1150
1151 f = buffer->driver_format;
1152 if (plane < 0 || plane >= f->nplanes) {
1153 _eglError(EGL_BAD_PARAMETER,
1154 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1155 return NULL;
1156 }
1157
1158 width = buffer->buffer.width >> f->planes[plane].width_shift;
1159 height = buffer->buffer.height >> f->planes[plane].height_shift;
1160 format = f->planes[plane].dri_format;
1161 cpp = f->planes[plane].cpp;
1162 index = f->planes[plane].buffer_index;
1163 offset = buffer->offset[index];
1164 stride = buffer->stride[index];
1165
1166 dri_image = dri2_dpy->image->createSubImage(buffer->driver_buffer,
1167 width, height, format,
1168 offset, stride / cpp, NULL);
1169
1170 return dri2_create_image(disp, dri_image);
1171 }
1172 #endif
1173
1174 _EGLImage *
1175 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1176 _EGLContext *ctx, EGLenum target,
1177 EGLClientBuffer buffer, const EGLint *attr_list)
1178 {
1179 (void) drv;
1180
1181 switch (target) {
1182 case EGL_GL_RENDERBUFFER_KHR:
1183 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1184 case EGL_DRM_BUFFER_MESA:
1185 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1186 #ifdef HAVE_WAYLAND_PLATFORM
1187 case EGL_WAYLAND_BUFFER_WL:
1188 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1189 #endif
1190 default:
1191 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1192 return EGL_NO_IMAGE_KHR;
1193 }
1194 }
1195
1196 static EGLBoolean
1197 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1198 {
1199 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1200 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1201
1202 (void) drv;
1203
1204 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1205 free(dri2_img);
1206
1207 return EGL_TRUE;
1208 }
1209
1210 static _EGLImage *
1211 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1212 const EGLint *attr_list)
1213 {
1214 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1215 struct dri2_egl_image *dri2_img;
1216 _EGLImageAttribs attrs;
1217 unsigned int dri_use, valid_mask;
1218 int format;
1219 EGLint err = EGL_SUCCESS;
1220
1221 (void) drv;
1222
1223 dri2_img = malloc(sizeof *dri2_img);
1224 if (!dri2_img) {
1225 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1226 return EGL_NO_IMAGE_KHR;
1227 }
1228
1229 if (!attr_list) {
1230 err = EGL_BAD_PARAMETER;
1231 goto cleanup_img;
1232 }
1233
1234 if (!_eglInitImage(&dri2_img->base, disp)) {
1235 err = EGL_BAD_PARAMETER;
1236 goto cleanup_img;
1237 }
1238
1239 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1240 if (err != EGL_SUCCESS)
1241 goto cleanup_img;
1242
1243 if (attrs.Width <= 0 || attrs.Height <= 0) {
1244 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1245 attrs.Width, attrs.Height);
1246 goto cleanup_img;
1247 }
1248
1249 switch (attrs.DRMBufferFormatMESA) {
1250 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1251 format = __DRI_IMAGE_FORMAT_ARGB8888;
1252 break;
1253 default:
1254 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1255 attrs.DRMBufferFormatMESA);
1256 goto cleanup_img;
1257 }
1258
1259 valid_mask =
1260 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1261 EGL_DRM_BUFFER_USE_SHARE_MESA |
1262 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1263 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1264 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1265 attrs.DRMBufferUseMESA & ~valid_mask);
1266 goto cleanup_img;
1267 }
1268
1269 dri_use = 0;
1270 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1271 dri_use |= __DRI_IMAGE_USE_SHARE;
1272 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1273 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1274 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1275 dri_use |= __DRI_IMAGE_USE_CURSOR;
1276
1277 dri2_img->dri_image =
1278 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1279 attrs.Width, attrs.Height,
1280 format, dri_use, dri2_img);
1281 if (dri2_img->dri_image == NULL) {
1282 err = EGL_BAD_ALLOC;
1283 goto cleanup_img;
1284 }
1285
1286 return &dri2_img->base;
1287
1288 cleanup_img:
1289 free(dri2_img);
1290 _eglError(err, "dri2_create_drm_image_mesa");
1291
1292 return EGL_NO_IMAGE_KHR;
1293 }
1294
1295 static EGLBoolean
1296 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1297 EGLint *name, EGLint *handle, EGLint *stride)
1298 {
1299 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1300 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1301
1302 (void) drv;
1303
1304 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1305 __DRI_IMAGE_ATTRIB_NAME, name)) {
1306 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1307 return EGL_FALSE;
1308 }
1309
1310 if (handle)
1311 dri2_dpy->image->queryImage(dri2_img->dri_image,
1312 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1313
1314 if (stride)
1315 dri2_dpy->image->queryImage(dri2_img->dri_image,
1316 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1317
1318 return EGL_TRUE;
1319 }
1320
1321 #ifdef HAVE_WAYLAND_PLATFORM
1322
1323 static void
1324 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1325 struct wl_drm_buffer *buffer)
1326 {
1327 _EGLDisplay *disp = user_data;
1328 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1329 int i;
1330
1331 for (i = 0; i < ARRAY_SIZE(wl_drm_formats); i++)
1332 if (wl_drm_formats[i].wl_format == buffer->format) {
1333 buffer->driver_format = &wl_drm_formats[i];
1334 break;
1335 }
1336
1337 if (buffer->driver_format == NULL)
1338 return;
1339
1340 buffer->driver_buffer =
1341 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1342 buffer->buffer.width,
1343 buffer->buffer.height,
1344 __DRI_IMAGE_FORMAT_NONE, name,
1345 buffer->stride[0] / 4,
1346 NULL);
1347 }
1348
1349 static void
1350 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1351 {
1352 _EGLDisplay *disp = user_data;
1353 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1354
1355 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1356 }
1357
1358 static struct wayland_drm_callbacks wl_drm_callbacks = {
1359 .authenticate = NULL,
1360 .reference_buffer = dri2_wl_reference_buffer,
1361 .release_buffer = dri2_wl_release_buffer
1362 };
1363
1364 static EGLBoolean
1365 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1366 struct wl_display *wl_dpy)
1367 {
1368 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1369
1370 (void) drv;
1371
1372 if (dri2_dpy->wl_server_drm)
1373 return EGL_FALSE;
1374
1375 wl_drm_callbacks.authenticate =
1376 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1377
1378 dri2_dpy->wl_server_drm =
1379 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1380 &wl_drm_callbacks, disp);
1381
1382 if (!dri2_dpy->wl_server_drm)
1383 return EGL_FALSE;
1384
1385 return EGL_TRUE;
1386 }
1387
1388 static EGLBoolean
1389 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1390 struct wl_display *wl_dpy)
1391 {
1392 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1393
1394 (void) drv;
1395
1396 if (!dri2_dpy->wl_server_drm)
1397 return EGL_FALSE;
1398
1399 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1400 dri2_dpy->wl_server_drm = NULL;
1401
1402 return EGL_TRUE;
1403 }
1404
1405 static EGLBoolean
1406 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1407 struct wl_buffer *_buffer,
1408 EGLint attribute, EGLint *value)
1409 {
1410 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1411 const struct wl_drm_format_descriptor *format;
1412
1413 if (!wayland_buffer_is_drm(&buffer->buffer))
1414 return EGL_FALSE;
1415
1416 format = buffer->driver_format;
1417 if (attribute == EGL_WAYLAND_BUFFER_COMPONENTS_WL) {
1418 *value = format->components;
1419 return EGL_TRUE;
1420 }
1421
1422 return EGL_FALSE;
1423 }
1424 #endif
1425
1426 static void
1427 dri2_unload(_EGLDriver *drv)
1428 {
1429 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1430
1431 if (dri2_drv->handle)
1432 dlclose(dri2_drv->handle);
1433 free(dri2_drv);
1434 }
1435
1436 static EGLBoolean
1437 dri2_load(_EGLDriver *drv)
1438 {
1439 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1440 #ifdef HAVE_SHARED_GLAPI
1441 #ifdef HAVE_ANDROID_PLATFORM
1442 const char *libname = "libglapi.so";
1443 #else
1444 const char *libname = "libglapi.so.0";
1445 #endif
1446 #else
1447 /*
1448 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1449 * tell which one to load.
1450 */
1451 const char *libname = NULL;
1452 #endif
1453 void *handle;
1454
1455 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1456 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1457 if (handle) {
1458 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1459 dlsym(handle, "_glapi_get_proc_address");
1460 if (!dri2_drv->get_proc_address || !libname) {
1461 /* no need to keep a reference */
1462 dlclose(handle);
1463 handle = NULL;
1464 }
1465 }
1466
1467 /* if glapi is not available, loading DRI drivers will fail */
1468 if (!dri2_drv->get_proc_address) {
1469 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1470 return EGL_FALSE;
1471 }
1472
1473 dri2_drv->glFlush = (void (*)(void))
1474 dri2_drv->get_proc_address("glFlush");
1475
1476 dri2_drv->handle = handle;
1477
1478 return EGL_TRUE;
1479 }
1480
1481 /**
1482 * This is the main entrypoint into the driver, called by libEGL.
1483 * Create a new _EGLDriver object and init its dispatch table.
1484 */
1485 _EGLDriver *
1486 _eglBuiltInDriverDRI2(const char *args)
1487 {
1488 struct dri2_egl_driver *dri2_drv;
1489
1490 (void) args;
1491
1492 dri2_drv = malloc(sizeof *dri2_drv);
1493 if (!dri2_drv)
1494 return NULL;
1495
1496 memset(dri2_drv, 0, sizeof *dri2_drv);
1497
1498 if (!dri2_load(&dri2_drv->base)) {
1499 free(dri2_drv);
1500 return NULL;
1501 }
1502
1503 _eglInitDriverFallbacks(&dri2_drv->base);
1504 dri2_drv->base.API.Initialize = dri2_initialize;
1505 dri2_drv->base.API.Terminate = dri2_terminate;
1506 dri2_drv->base.API.CreateContext = dri2_create_context;
1507 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
1508 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1509 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1510 dri2_drv->base.API.WaitClient = dri2_wait_client;
1511 dri2_drv->base.API.WaitNative = dri2_wait_native;
1512 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1513 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1514 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1515 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1516 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1517 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1518 #ifdef HAVE_WAYLAND_PLATFORM
1519 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1520 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1521 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
1522 #endif
1523
1524 dri2_drv->base.Name = "DRI2";
1525 dri2_drv->base.Unload = dri2_unload;
1526
1527 return &dri2_drv->base;
1528 }