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wayland: Add prime fd passing as a buffer sharing mechanism
[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 /* Allow a 24-bit RGB visual to match a 32-bit RGBA EGLConfig. Otherwise
199 * it will only match a 32-bit RGBA visual. On a composited window manager
200 * on X11, this will make all of the EGLConfigs with destination alpha get
201 * blended by the compositor. This is probably not what the application
202 * wants... especially on drivers that only have 32-bit RGBA EGLConfigs!
203 */
204 if (depth > 0 && depth != base.BufferSize
205 && !(depth == 24 && base.BufferSize == 32))
206 return NULL;
207
208 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
209 return NULL;
210
211 base.NativeRenderable = EGL_TRUE;
212
213 base.SurfaceType = surface_type;
214 if (surface_type & (EGL_PBUFFER_BIT |
215 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
216 base.BindToTextureRGB = bind_to_texture_rgb;
217 if (base.AlphaSize > 0)
218 base.BindToTextureRGBA = bind_to_texture_rgba;
219 }
220
221 base.RenderableType = disp->ClientAPIs;
222 base.Conformant = disp->ClientAPIs;
223
224 if (!_eglValidateConfig(&base, EGL_FALSE)) {
225 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
226 return NULL;
227 }
228
229 config_id = base.ConfigID;
230 base.ConfigID = EGL_DONT_CARE;
231 base.SurfaceType = EGL_DONT_CARE;
232 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
233 (_EGLArrayForEach) dri2_match_config, &base);
234
235 if (num_configs == 1) {
236 conf = (struct dri2_egl_config *) matching_config;
237
238 if (double_buffer && !conf->dri_double_config)
239 conf->dri_double_config = dri_config;
240 else if (!double_buffer && !conf->dri_single_config)
241 conf->dri_single_config = dri_config;
242 else
243 /* a similar config type is already added (unlikely) => discard */
244 return NULL;
245 }
246 else if (num_configs == 0) {
247 conf = malloc(sizeof *conf);
248 if (conf == NULL)
249 return NULL;
250
251 memcpy(&conf->base, &base, sizeof base);
252 if (double_buffer) {
253 conf->dri_double_config = dri_config;
254 conf->dri_single_config = NULL;
255 } else {
256 conf->dri_single_config = dri_config;
257 conf->dri_double_config = NULL;
258 }
259 conf->base.SurfaceType = 0;
260 conf->base.ConfigID = config_id;
261
262 _eglLinkConfig(&conf->base);
263 }
264 else {
265 assert(0);
266 return NULL;
267 }
268
269 if (double_buffer) {
270 surface_type &= ~EGL_PIXMAP_BIT;
271
272 conf->base.MinSwapInterval = dri2_dpy->min_swap_interval;
273 conf->base.MaxSwapInterval = dri2_dpy->max_swap_interval;
274 }
275
276 conf->base.SurfaceType |= surface_type;
277
278 return conf;
279 }
280
281 __DRIimage *
282 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
283 {
284 _EGLDisplay *disp = data;
285 struct dri2_egl_image *dri2_img;
286 _EGLImage *img;
287
288 (void) screen;
289
290 img = _eglLookupImage(image, disp);
291 if (img == NULL) {
292 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
293 return NULL;
294 }
295
296 dri2_img = dri2_egl_image(image);
297
298 return dri2_img->dri_image;
299 }
300
301 const __DRIimageLookupExtension image_lookup_extension = {
302 { __DRI_IMAGE_LOOKUP, 1 },
303 dri2_lookup_egl_image
304 };
305
306 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
307
308 struct dri2_extension_match {
309 const char *name;
310 int version;
311 int offset;
312 };
313
314 static struct dri2_extension_match dri2_driver_extensions[] = {
315 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
316 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
317 { NULL, 0, 0 }
318 };
319
320 static struct dri2_extension_match dri2_core_extensions[] = {
321 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
322 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
323 { __DRI_IMAGE, 7, offsetof(struct dri2_egl_display, image) },
324 { NULL, 0, 0 }
325 };
326
327 static struct dri2_extension_match swrast_driver_extensions[] = {
328 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
329 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
330 { NULL, 0, 0 }
331 };
332
333 static struct dri2_extension_match swrast_core_extensions[] = {
334 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
335 { NULL, 0, 0 }
336 };
337
338 static EGLBoolean
339 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
340 struct dri2_extension_match *matches,
341 const __DRIextension **extensions)
342 {
343 int i, j, ret = EGL_TRUE;
344 void *field;
345
346 for (i = 0; extensions[i]; i++) {
347 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
348 for (j = 0; matches[j].name; j++) {
349 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
350 extensions[i]->version >= matches[j].version) {
351 field = ((char *) dri2_dpy + matches[j].offset);
352 *(const __DRIextension **) field = extensions[i];
353 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
354 extensions[i]->name, extensions[i]->version);
355 }
356 }
357 }
358
359 for (j = 0; matches[j].name; j++) {
360 field = ((char *) dri2_dpy + matches[j].offset);
361 if (*(const __DRIextension **) field == NULL) {
362 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
363 matches[j].name, matches[j].version);
364 ret = EGL_FALSE;
365 }
366 }
367
368 return ret;
369 }
370
371 static const __DRIextension **
372 dri2_open_driver(_EGLDisplay *disp)
373 {
374 struct dri2_egl_display *dri2_dpy = disp->DriverData;
375 const __DRIextension **extensions;
376 char path[PATH_MAX], *search_paths, *p, *next, *end;
377
378 search_paths = NULL;
379 if (geteuid() == getuid()) {
380 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
381 search_paths = getenv("LIBGL_DRIVERS_PATH");
382 }
383 if (search_paths == NULL)
384 search_paths = DEFAULT_DRIVER_DIR;
385
386 dri2_dpy->driver = NULL;
387 end = search_paths + strlen(search_paths);
388 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
389 int len;
390 next = strchr(p, ':');
391 if (next == NULL)
392 next = end;
393
394 len = next - p;
395 #if GLX_USE_TLS
396 snprintf(path, sizeof path,
397 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
398 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
399 #endif
400 if (dri2_dpy->driver == NULL) {
401 snprintf(path, sizeof path,
402 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
403 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
404 if (dri2_dpy->driver == NULL)
405 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
406 }
407 }
408
409 if (dri2_dpy->driver == NULL) {
410 _eglLog(_EGL_WARNING,
411 "DRI2: failed to open %s (search paths %s)",
412 dri2_dpy->driver_name, search_paths);
413 return NULL;
414 }
415
416 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
417 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
418 if (extensions == NULL) {
419 _eglLog(_EGL_WARNING,
420 "DRI2: driver exports no extensions (%s)", dlerror());
421 dlclose(dri2_dpy->driver);
422 }
423
424 return extensions;
425 }
426
427 EGLBoolean
428 dri2_load_driver(_EGLDisplay *disp)
429 {
430 struct dri2_egl_display *dri2_dpy = disp->DriverData;
431 const __DRIextension **extensions;
432
433 extensions = dri2_open_driver(disp);
434 if (!extensions)
435 return EGL_FALSE;
436
437 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
438 dlclose(dri2_dpy->driver);
439 return EGL_FALSE;
440 }
441
442 return EGL_TRUE;
443 }
444
445 EGLBoolean
446 dri2_load_driver_swrast(_EGLDisplay *disp)
447 {
448 struct dri2_egl_display *dri2_dpy = disp->DriverData;
449 const __DRIextension **extensions;
450
451 dri2_dpy->driver_name = "swrast";
452 extensions = dri2_open_driver(disp);
453
454 if (!extensions)
455 return EGL_FALSE;
456
457 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
458 dlclose(dri2_dpy->driver);
459 return EGL_FALSE;
460 }
461
462 return EGL_TRUE;
463 }
464
465 void
466 dri2_setup_screen(_EGLDisplay *disp)
467 {
468 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
469 unsigned int api_mask;
470
471 if (dri2_dpy->dri2) {
472 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
473 } else {
474 assert(dri2_dpy->swrast);
475 api_mask = 1 << __DRI_API_OPENGL |
476 1 << __DRI_API_GLES |
477 1 << __DRI_API_GLES2 |
478 1 << __DRI_API_GLES3;
479 }
480
481 disp->ClientAPIs = 0;
482 if (api_mask & (1 <<__DRI_API_OPENGL))
483 disp->ClientAPIs |= EGL_OPENGL_BIT;
484 if (api_mask & (1 <<__DRI_API_GLES))
485 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
486 if (api_mask & (1 << __DRI_API_GLES2))
487 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
488 if (api_mask & (1 << __DRI_API_GLES3))
489 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
490
491 assert(dri2_dpy->dri2 || dri2_dpy->swrast);
492 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
493
494 if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
495 disp->Extensions.KHR_create_context = EGL_TRUE;
496
497 if (dri2_dpy->robustness)
498 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
499 }
500
501 if (dri2_dpy->image) {
502 disp->Extensions.MESA_drm_image = EGL_TRUE;
503 disp->Extensions.KHR_image_base = EGL_TRUE;
504 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
505 if (dri2_dpy->image->base.version >= 5 &&
506 dri2_dpy->image->createImageFromTexture) {
507 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
508 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
509 }
510 }
511 }
512
513 EGLBoolean
514 dri2_create_screen(_EGLDisplay *disp)
515 {
516 const __DRIextension **extensions;
517 struct dri2_egl_display *dri2_dpy;
518
519 dri2_dpy = disp->DriverData;
520
521 if (dri2_dpy->dri2) {
522 dri2_dpy->dri_screen =
523 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
524 &dri2_dpy->driver_configs, disp);
525 } else {
526 assert(dri2_dpy->swrast);
527 dri2_dpy->dri_screen =
528 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
529 &dri2_dpy->driver_configs, disp);
530 }
531
532 if (dri2_dpy->dri_screen == NULL) {
533 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
534 return EGL_FALSE;
535 }
536
537 dri2_dpy->own_dri_screen = 1;
538
539 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
540
541 if (dri2_dpy->dri2) {
542 unsigned i;
543
544 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
545 goto cleanup_dri_screen;
546
547 for (i = 0; extensions[i]; i++) {
548 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
549 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
550 }
551 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
552 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
553 }
554 }
555 } else {
556 assert(dri2_dpy->swrast);
557 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
558 goto cleanup_dri_screen;
559 }
560
561 dri2_setup_screen(disp);
562
563 return EGL_TRUE;
564
565 cleanup_dri_screen:
566 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
567
568 return EGL_FALSE;
569 }
570
571 /**
572 * Called via eglInitialize(), GLX_drv->API.Initialize().
573 */
574 static EGLBoolean
575 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
576 {
577 /* not until swrast_dri is supported */
578 if (disp->Options.UseFallback)
579 return EGL_FALSE;
580
581 switch (disp->Platform) {
582 #ifdef HAVE_X11_PLATFORM
583 case _EGL_PLATFORM_X11:
584 if (disp->Options.TestOnly)
585 return EGL_TRUE;
586 return dri2_initialize_x11(drv, disp);
587 #endif
588
589 #ifdef HAVE_LIBUDEV
590 #ifdef HAVE_DRM_PLATFORM
591 case _EGL_PLATFORM_DRM:
592 if (disp->Options.TestOnly)
593 return EGL_TRUE;
594 return dri2_initialize_drm(drv, disp);
595 #endif
596 #ifdef HAVE_WAYLAND_PLATFORM
597 case _EGL_PLATFORM_WAYLAND:
598 if (disp->Options.TestOnly)
599 return EGL_TRUE;
600 return dri2_initialize_wayland(drv, disp);
601 #endif
602 #endif
603 #ifdef HAVE_ANDROID_PLATFORM
604 case _EGL_PLATFORM_ANDROID:
605 if (disp->Options.TestOnly)
606 return EGL_TRUE;
607 return dri2_initialize_android(drv, disp);
608 #endif
609
610 default:
611 return EGL_FALSE;
612 }
613 }
614
615 /**
616 * Called via eglTerminate(), drv->API.Terminate().
617 */
618 static EGLBoolean
619 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
620 {
621 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
622
623 _eglReleaseDisplayResources(drv, disp);
624 _eglCleanupDisplay(disp);
625
626 if (dri2_dpy->own_dri_screen)
627 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
628 if (dri2_dpy->fd)
629 close(dri2_dpy->fd);
630 if (dri2_dpy->driver)
631 dlclose(dri2_dpy->driver);
632 free(dri2_dpy->device_name);
633
634 if (disp->PlatformDisplay == NULL) {
635 switch (disp->Platform) {
636 #ifdef HAVE_X11_PLATFORM
637 case _EGL_PLATFORM_X11:
638 xcb_disconnect(dri2_dpy->conn);
639 break;
640 #endif
641 #ifdef HAVE_DRM_PLATFORM
642 case _EGL_PLATFORM_DRM:
643 if (dri2_dpy->own_device) {
644 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
645 }
646 break;
647 #endif
648 default:
649 break;
650 }
651 }
652
653 free(dri2_dpy);
654 disp->DriverData = NULL;
655
656 return EGL_TRUE;
657 }
658
659 /**
660 * Set the error code after a call to
661 * dri2_egl_display::dri2::createContextAttribs.
662 */
663 static void
664 dri2_create_context_attribs_error(int dri_error)
665 {
666 EGLint egl_error;
667
668 switch (dri_error) {
669 case __DRI_CTX_ERROR_SUCCESS:
670 return;
671
672 case __DRI_CTX_ERROR_NO_MEMORY:
673 egl_error = EGL_BAD_ALLOC;
674 break;
675
676 /* From the EGL_KHR_create_context spec, section "Errors":
677 *
678 * * If <config> does not support a client API context compatible
679 * with the requested API major and minor version, [...] context flags,
680 * and context reset notification behavior (for client API types where
681 * these attributes are supported), then an EGL_BAD_MATCH error is
682 * generated.
683 *
684 * * If an OpenGL ES context is requested and the values for
685 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
686 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
687 * is not defined, than an EGL_BAD_MATCH error is generated.
688 *
689 * * If an OpenGL context is requested, the requested version is
690 * greater than 3.2, and the value for attribute
691 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
692 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
693 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
694 * one of these bits set; or if the implementation does not support
695 * the requested profile, then an EGL_BAD_MATCH error is generated.
696 */
697 case __DRI_CTX_ERROR_BAD_API:
698 case __DRI_CTX_ERROR_BAD_VERSION:
699 case __DRI_CTX_ERROR_BAD_FLAG:
700 egl_error = EGL_BAD_MATCH;
701 break;
702
703 /* From the EGL_KHR_create_context spec, section "Errors":
704 *
705 * * If an attribute name or attribute value in <attrib_list> is not
706 * recognized (including unrecognized bits in bitmask attributes),
707 * then an EGL_BAD_ATTRIBUTE error is generated."
708 */
709 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
710 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
711 egl_error = EGL_BAD_ATTRIBUTE;
712 break;
713
714 default:
715 assert(0);
716 egl_error = EGL_BAD_MATCH;
717 break;
718 }
719
720 _eglError(egl_error, "dri2_create_context");
721 }
722
723 /**
724 * Called via eglCreateContext(), drv->API.CreateContext().
725 */
726 static _EGLContext *
727 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
728 _EGLContext *share_list, const EGLint *attrib_list)
729 {
730 struct dri2_egl_context *dri2_ctx;
731 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
732 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
733 __DRIcontext *shared =
734 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
735 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
736 const __DRIconfig *dri_config;
737 int api;
738
739 (void) drv;
740
741 dri2_ctx = malloc(sizeof *dri2_ctx);
742 if (!dri2_ctx) {
743 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
744 return NULL;
745 }
746
747 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
748 goto cleanup;
749
750 switch (dri2_ctx->base.ClientAPI) {
751 case EGL_OPENGL_ES_API:
752 switch (dri2_ctx->base.ClientMajorVersion) {
753 case 1:
754 api = __DRI_API_GLES;
755 break;
756 case 2:
757 api = __DRI_API_GLES2;
758 break;
759 case 3:
760 api = __DRI_API_GLES3;
761 break;
762 default:
763 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
764 return NULL;
765 }
766 break;
767 case EGL_OPENGL_API:
768 if ((dri2_ctx->base.ClientMajorVersion >= 4
769 || (dri2_ctx->base.ClientMajorVersion == 3
770 && dri2_ctx->base.ClientMinorVersion >= 2))
771 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
772 api = __DRI_API_OPENGL_CORE;
773 else
774 api = __DRI_API_OPENGL;
775 break;
776 default:
777 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
778 free(dri2_ctx);
779 return NULL;
780 }
781
782 if (conf != NULL) {
783 /* The config chosen here isn't necessarily
784 * used for surfaces later.
785 * A pixmap surface will use the single config.
786 * This opportunity depends on disabling the
787 * doubleBufferMode check in
788 * src/mesa/main/context.c:check_compatible()
789 */
790 if (dri2_config->dri_double_config)
791 dri_config = dri2_config->dri_double_config;
792 else
793 dri_config = dri2_config->dri_single_config;
794
795 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
796 * makes sure the back buffer will always be used.
797 */
798 if (conf->SurfaceType & EGL_WINDOW_BIT)
799 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
800 }
801 else
802 dri_config = NULL;
803
804 if (dri2_dpy->dri2) {
805 if (dri2_dpy->dri2->base.version >= 3) {
806 unsigned error;
807 unsigned num_attribs = 0;
808 uint32_t ctx_attribs[8];
809
810 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
811 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMajorVersion;
812 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
813 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMinorVersion;
814
815 if (dri2_ctx->base.Flags != 0) {
816 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
817 * extension, don't even try to send it the robust-access flag.
818 * It may explode. Instead, generate the required EGL error here.
819 */
820 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
821 && !dri2_dpy->robustness) {
822 _eglError(EGL_BAD_MATCH, "eglCreateContext");
823 goto cleanup;
824 }
825
826 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
827 ctx_attribs[num_attribs++] = dri2_ctx->base.Flags;
828 }
829
830 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
831 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
832 * extension, don't even try to send it a reset strategy. It may
833 * explode. Instead, generate the required EGL error here.
834 */
835 if (!dri2_dpy->robustness) {
836 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
837 goto cleanup;
838 }
839
840 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
841 ctx_attribs[num_attribs++] = __DRI_CTX_RESET_LOSE_CONTEXT;
842 }
843
844 assert(num_attribs <= ARRAY_SIZE(ctx_attribs));
845
846 dri2_ctx->dri_context =
847 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
848 api,
849 dri_config,
850 shared,
851 num_attribs / 2,
852 ctx_attribs,
853 & error,
854 dri2_ctx);
855 dri2_create_context_attribs_error(error);
856 } else {
857 dri2_ctx->dri_context =
858 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
859 api,
860 dri_config,
861 shared,
862 dri2_ctx);
863 }
864 } else {
865 assert(dri2_dpy->swrast);
866 dri2_ctx->dri_context =
867 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
868 api,
869 dri_config,
870 shared,
871 dri2_ctx);
872 }
873
874 if (!dri2_ctx->dri_context)
875 goto cleanup;
876
877 return &dri2_ctx->base;
878
879 cleanup:
880 free(dri2_ctx);
881 return NULL;
882 }
883
884 /**
885 * Called via eglDestroyContext(), drv->API.DestroyContext().
886 */
887 static EGLBoolean
888 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
889 {
890 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
891 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
892
893 if (_eglPutContext(ctx)) {
894 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
895 free(dri2_ctx);
896 }
897
898 return EGL_TRUE;
899 }
900
901 /**
902 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
903 */
904 static EGLBoolean
905 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
906 _EGLSurface *rsurf, _EGLContext *ctx)
907 {
908 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
909 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
910 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
911 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
912 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
913 _EGLContext *old_ctx;
914 _EGLSurface *old_dsurf, *old_rsurf;
915 __DRIdrawable *ddraw, *rdraw;
916 __DRIcontext *cctx;
917
918 /* make new bindings */
919 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
920 return EGL_FALSE;
921
922 /* flush before context switch */
923 if (old_ctx && dri2_drv->glFlush)
924 dri2_drv->glFlush();
925
926 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
927 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
928 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
929
930 if (old_ctx) {
931 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
932 dri2_dpy->core->unbindContext(old_cctx);
933 }
934
935 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
936 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
937 if (old_dsurf)
938 drv->API.DestroySurface(drv, disp, old_dsurf);
939 if (old_rsurf)
940 drv->API.DestroySurface(drv, disp, old_rsurf);
941 if (old_ctx)
942 drv->API.DestroyContext(drv, disp, old_ctx);
943
944 return EGL_TRUE;
945 } else {
946 /* undo the previous _eglBindContext */
947 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
948 assert(&dri2_ctx->base == ctx &&
949 &dri2_dsurf->base == dsurf &&
950 &dri2_rsurf->base == rsurf);
951
952 _eglPutSurface(dsurf);
953 _eglPutSurface(rsurf);
954 _eglPutContext(ctx);
955
956 _eglPutSurface(old_dsurf);
957 _eglPutSurface(old_rsurf);
958 _eglPutContext(old_ctx);
959
960 return EGL_FALSE;
961 }
962 }
963
964 /*
965 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
966 */
967 static _EGLProc
968 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
969 {
970 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
971
972 return dri2_drv->get_proc_address(procname);
973 }
974
975 static EGLBoolean
976 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
977 {
978 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
979 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
980
981 (void) drv;
982
983 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
984 * we need to copy fake to real here.*/
985
986 if (dri2_dpy->flush != NULL)
987 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
988
989 return EGL_TRUE;
990 }
991
992 static EGLBoolean
993 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
994 {
995 (void) drv;
996 (void) disp;
997
998 if (engine != EGL_CORE_NATIVE_ENGINE)
999 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1000 /* glXWaitX(); */
1001
1002 return EGL_TRUE;
1003 }
1004
1005 static EGLBoolean
1006 dri2_bind_tex_image(_EGLDriver *drv,
1007 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1008 {
1009 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1010 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1011 struct dri2_egl_context *dri2_ctx;
1012 _EGLContext *ctx;
1013 GLint format, target;
1014
1015 ctx = _eglGetCurrentContext();
1016 dri2_ctx = dri2_egl_context(ctx);
1017
1018 if (!_eglBindTexImage(drv, disp, surf, buffer))
1019 return EGL_FALSE;
1020
1021 switch (dri2_surf->base.TextureFormat) {
1022 case EGL_TEXTURE_RGB:
1023 format = __DRI_TEXTURE_FORMAT_RGB;
1024 break;
1025 case EGL_TEXTURE_RGBA:
1026 format = __DRI_TEXTURE_FORMAT_RGBA;
1027 break;
1028 default:
1029 assert(0);
1030 }
1031
1032 switch (dri2_surf->base.TextureTarget) {
1033 case EGL_TEXTURE_2D:
1034 target = GL_TEXTURE_2D;
1035 break;
1036 default:
1037 assert(0);
1038 }
1039
1040 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1041 target, format,
1042 dri2_surf->dri_drawable);
1043
1044 return EGL_TRUE;
1045 }
1046
1047 static EGLBoolean
1048 dri2_release_tex_image(_EGLDriver *drv,
1049 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1050 {
1051 #if __DRI_TEX_BUFFER_VERSION >= 3
1052 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1053 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1054 struct dri2_egl_context *dri2_ctx;
1055 _EGLContext *ctx;
1056 GLint target;
1057
1058 ctx = _eglGetCurrentContext();
1059 dri2_ctx = dri2_egl_context(ctx);
1060
1061 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1062 return EGL_FALSE;
1063
1064 switch (dri2_surf->base.TextureTarget) {
1065 case EGL_TEXTURE_2D:
1066 target = GL_TEXTURE_2D;
1067 break;
1068 default:
1069 assert(0);
1070 }
1071 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
1072 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1073 target,
1074 dri2_surf->dri_drawable);
1075 #endif
1076
1077 return EGL_TRUE;
1078 }
1079
1080 static _EGLImage *
1081 dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
1082 {
1083 struct dri2_egl_image *dri2_img;
1084
1085 if (dri_image == NULL) {
1086 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1087 return NULL;
1088 }
1089
1090 dri2_img = malloc(sizeof *dri2_img);
1091 if (!dri2_img) {
1092 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1093 return NULL;
1094 }
1095
1096 if (!_eglInitImage(&dri2_img->base, disp)) {
1097 free(dri2_img);
1098 return NULL;
1099 }
1100
1101 dri2_img->dri_image = dri_image;
1102
1103 return &dri2_img->base;
1104 }
1105
1106 static _EGLImage *
1107 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1108 EGLClientBuffer buffer,
1109 const EGLint *attr_list)
1110 {
1111 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1112 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1113 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1114 __DRIimage *dri_image;
1115
1116 if (renderbuffer == 0) {
1117 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1118 return EGL_NO_IMAGE_KHR;
1119 }
1120
1121 dri_image =
1122 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1123 renderbuffer, NULL);
1124
1125 return dri2_create_image(disp, dri_image);
1126 }
1127
1128 static _EGLImage *
1129 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1130 EGLClientBuffer buffer, const EGLint *attr_list)
1131 {
1132 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1133 EGLint format, name, pitch, err;
1134 _EGLImageAttribs attrs;
1135 __DRIimage *dri_image;
1136
1137 name = (EGLint) (uintptr_t) buffer;
1138
1139 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1140 if (err != EGL_SUCCESS)
1141 return NULL;
1142
1143 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1144 attrs.DRMBufferStrideMESA <= 0) {
1145 _eglError(EGL_BAD_PARAMETER,
1146 "bad width, height or stride");
1147 return NULL;
1148 }
1149
1150 switch (attrs.DRMBufferFormatMESA) {
1151 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1152 format = __DRI_IMAGE_FORMAT_ARGB8888;
1153 pitch = attrs.DRMBufferStrideMESA;
1154 break;
1155 default:
1156 _eglError(EGL_BAD_PARAMETER,
1157 "dri2_create_image_khr: unsupported pixmap depth");
1158 return NULL;
1159 }
1160
1161 dri_image =
1162 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1163 attrs.Width,
1164 attrs.Height,
1165 format,
1166 name,
1167 pitch,
1168 NULL);
1169
1170 return dri2_create_image(disp, dri_image);
1171 }
1172
1173 #ifdef HAVE_WAYLAND_PLATFORM
1174
1175 /* This structure describes how a wl_buffer maps to one or more
1176 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1177 * offsets and strides of the planes in the buffer. This table maps a
1178 * wl_drm format code to a description of the planes in the buffer
1179 * that lets us create a __DRIimage for each of the planes. */
1180
1181 static const struct wl_drm_components_descriptor {
1182 uint32_t dri_components;
1183 EGLint components;
1184 int nplanes;
1185 } wl_drm_components[] = {
1186 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1187 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1188 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1189 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1190 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1191 };
1192
1193 static _EGLImage *
1194 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1195 EGLClientBuffer _buffer,
1196 const EGLint *attr_list)
1197 {
1198 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1199 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1200 const struct wl_drm_components_descriptor *f;
1201 __DRIimage *dri_image;
1202 _EGLImageAttribs attrs;
1203 EGLint err;
1204 int32_t plane;
1205
1206 if (!wayland_buffer_is_drm(&buffer->buffer))
1207 return NULL;
1208
1209 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1210 plane = attrs.PlaneWL;
1211 if (err != EGL_SUCCESS) {
1212 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1213 return NULL;
1214 }
1215
1216 f = buffer->driver_format;
1217 if (plane < 0 || plane >= f->nplanes) {
1218 _eglError(EGL_BAD_PARAMETER,
1219 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1220 return NULL;
1221 }
1222
1223 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1224
1225 if (dri_image == NULL) {
1226 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1227 return NULL;
1228 }
1229
1230 return dri2_create_image(disp, dri_image);
1231 }
1232 #endif
1233
1234 /**
1235 * Set the error code after a call to
1236 * dri2_egl_image::dri_image::createImageFromTexture.
1237 */
1238 static void
1239 dri2_create_image_khr_texture_error(int dri_error)
1240 {
1241 EGLint egl_error;
1242
1243 switch (dri_error) {
1244 case __DRI_IMAGE_ERROR_SUCCESS:
1245 return;
1246
1247 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1248 egl_error = EGL_BAD_ALLOC;
1249 break;
1250
1251 case __DRI_IMAGE_ERROR_BAD_MATCH:
1252 egl_error = EGL_BAD_MATCH;
1253 break;
1254
1255 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1256 egl_error = EGL_BAD_PARAMETER;
1257 break;
1258
1259 default:
1260 assert(0);
1261 egl_error = EGL_BAD_MATCH;
1262 break;
1263 }
1264
1265 _eglError(egl_error, "dri2_create_image_khr_texture");
1266 }
1267
1268 static _EGLImage *
1269 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1270 EGLenum target,
1271 EGLClientBuffer buffer,
1272 const EGLint *attr_list)
1273 {
1274 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1275 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1276 struct dri2_egl_image *dri2_img;
1277 GLuint texture = (GLuint) (uintptr_t) buffer;
1278 _EGLImageAttribs attrs;
1279 GLuint depth;
1280 GLenum gl_target;
1281 unsigned error;
1282
1283 if (texture == 0) {
1284 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1285 return EGL_NO_IMAGE_KHR;
1286 }
1287
1288 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1289 return EGL_NO_IMAGE_KHR;
1290
1291 switch (target) {
1292 case EGL_GL_TEXTURE_2D_KHR:
1293 depth = 0;
1294 gl_target = GL_TEXTURE_2D;
1295 break;
1296 case EGL_GL_TEXTURE_3D_KHR:
1297 depth = attrs.GLTextureZOffset;
1298 gl_target = GL_TEXTURE_3D;
1299 break;
1300 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1301 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1302 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1303 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1304 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1305 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1306 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1307 gl_target = GL_TEXTURE_CUBE_MAP;
1308 break;
1309 default:
1310 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1311 return EGL_NO_IMAGE_KHR;
1312 }
1313
1314 dri2_img = malloc(sizeof *dri2_img);
1315 if (!dri2_img) {
1316 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1317 return EGL_NO_IMAGE_KHR;
1318 }
1319
1320 if (!_eglInitImage(&dri2_img->base, disp)) {
1321 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1322 free(dri2_img);
1323 return EGL_NO_IMAGE_KHR;
1324 }
1325
1326 dri2_img->dri_image =
1327 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1328 gl_target,
1329 texture,
1330 depth,
1331 attrs.GLTextureLevel,
1332 &error,
1333 dri2_img);
1334 dri2_create_image_khr_texture_error(error);
1335
1336 if (!dri2_img->dri_image) {
1337 free(dri2_img);
1338 return EGL_NO_IMAGE_KHR;
1339 }
1340 return &dri2_img->base;
1341 }
1342
1343 _EGLImage *
1344 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1345 _EGLContext *ctx, EGLenum target,
1346 EGLClientBuffer buffer, const EGLint *attr_list)
1347 {
1348 (void) drv;
1349
1350 switch (target) {
1351 case EGL_GL_TEXTURE_2D_KHR:
1352 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1353 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1354 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1355 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1356 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1357 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1358 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
1359 case EGL_GL_RENDERBUFFER_KHR:
1360 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1361 case EGL_DRM_BUFFER_MESA:
1362 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1363 #ifdef HAVE_WAYLAND_PLATFORM
1364 case EGL_WAYLAND_BUFFER_WL:
1365 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1366 #endif
1367 default:
1368 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1369 return EGL_NO_IMAGE_KHR;
1370 }
1371 }
1372
1373 static EGLBoolean
1374 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1375 {
1376 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1377 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1378
1379 (void) drv;
1380
1381 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1382 free(dri2_img);
1383
1384 return EGL_TRUE;
1385 }
1386
1387 static _EGLImage *
1388 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1389 const EGLint *attr_list)
1390 {
1391 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1392 struct dri2_egl_image *dri2_img;
1393 _EGLImageAttribs attrs;
1394 unsigned int dri_use, valid_mask;
1395 int format;
1396 EGLint err = EGL_SUCCESS;
1397
1398 (void) drv;
1399
1400 dri2_img = malloc(sizeof *dri2_img);
1401 if (!dri2_img) {
1402 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1403 return EGL_NO_IMAGE_KHR;
1404 }
1405
1406 if (!attr_list) {
1407 err = EGL_BAD_PARAMETER;
1408 goto cleanup_img;
1409 }
1410
1411 if (!_eglInitImage(&dri2_img->base, disp)) {
1412 err = EGL_BAD_PARAMETER;
1413 goto cleanup_img;
1414 }
1415
1416 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1417 if (err != EGL_SUCCESS)
1418 goto cleanup_img;
1419
1420 if (attrs.Width <= 0 || attrs.Height <= 0) {
1421 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1422 attrs.Width, attrs.Height);
1423 goto cleanup_img;
1424 }
1425
1426 switch (attrs.DRMBufferFormatMESA) {
1427 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1428 format = __DRI_IMAGE_FORMAT_ARGB8888;
1429 break;
1430 default:
1431 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1432 attrs.DRMBufferFormatMESA);
1433 goto cleanup_img;
1434 }
1435
1436 valid_mask =
1437 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1438 EGL_DRM_BUFFER_USE_SHARE_MESA |
1439 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1440 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1441 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1442 attrs.DRMBufferUseMESA & ~valid_mask);
1443 goto cleanup_img;
1444 }
1445
1446 dri_use = 0;
1447 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1448 dri_use |= __DRI_IMAGE_USE_SHARE;
1449 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1450 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1451 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1452 dri_use |= __DRI_IMAGE_USE_CURSOR;
1453
1454 dri2_img->dri_image =
1455 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1456 attrs.Width, attrs.Height,
1457 format, dri_use, dri2_img);
1458 if (dri2_img->dri_image == NULL) {
1459 err = EGL_BAD_ALLOC;
1460 goto cleanup_img;
1461 }
1462
1463 return &dri2_img->base;
1464
1465 cleanup_img:
1466 free(dri2_img);
1467 _eglError(err, "dri2_create_drm_image_mesa");
1468
1469 return EGL_NO_IMAGE_KHR;
1470 }
1471
1472 static EGLBoolean
1473 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1474 EGLint *name, EGLint *handle, EGLint *stride)
1475 {
1476 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1477 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1478
1479 (void) drv;
1480
1481 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1482 __DRI_IMAGE_ATTRIB_NAME, name)) {
1483 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1484 return EGL_FALSE;
1485 }
1486
1487 if (handle)
1488 dri2_dpy->image->queryImage(dri2_img->dri_image,
1489 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1490
1491 if (stride)
1492 dri2_dpy->image->queryImage(dri2_img->dri_image,
1493 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1494
1495 return EGL_TRUE;
1496 }
1497
1498 #ifdef HAVE_WAYLAND_PLATFORM
1499
1500 static void
1501 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
1502 struct wl_drm_buffer *buffer)
1503 {
1504 _EGLDisplay *disp = user_data;
1505 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1506 __DRIimage *img;
1507 int i, dri_components = 0;
1508
1509 if (fd == -1)
1510 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
1511 buffer->buffer.width,
1512 buffer->buffer.height,
1513 buffer->format,
1514 (int*)&name, 1,
1515 buffer->stride,
1516 buffer->offset,
1517 NULL);
1518 else
1519 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
1520 buffer->buffer.width,
1521 buffer->buffer.height,
1522 buffer->format,
1523 &fd, 1,
1524 buffer->stride,
1525 buffer->offset,
1526 NULL);
1527
1528 if (img == NULL)
1529 return;
1530
1531 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
1532
1533 buffer->driver_format = NULL;
1534 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
1535 if (wl_drm_components[i].dri_components == dri_components)
1536 buffer->driver_format = &wl_drm_components[i];
1537
1538 if (buffer->driver_format == NULL)
1539 dri2_dpy->image->destroyImage(img);
1540 else
1541 buffer->driver_buffer = img;
1542 }
1543
1544 static void
1545 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1546 {
1547 _EGLDisplay *disp = user_data;
1548 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1549
1550 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1551 }
1552
1553 static struct wayland_drm_callbacks wl_drm_callbacks = {
1554 .authenticate = NULL,
1555 .reference_buffer = dri2_wl_reference_buffer,
1556 .release_buffer = dri2_wl_release_buffer
1557 };
1558
1559 static EGLBoolean
1560 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1561 struct wl_display *wl_dpy)
1562 {
1563 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1564 int ret, flags = 0;
1565 uint64_t cap;
1566
1567 (void) drv;
1568
1569 if (dri2_dpy->wl_server_drm)
1570 return EGL_FALSE;
1571
1572 wl_drm_callbacks.authenticate =
1573 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1574
1575 ret = drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap);
1576 if (ret == 0 && cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT))
1577 flags |= WAYLAND_DRM_PRIME;
1578
1579 dri2_dpy->wl_server_drm =
1580 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1581 &wl_drm_callbacks, disp, flags);
1582
1583 if (!dri2_dpy->wl_server_drm)
1584 return EGL_FALSE;
1585
1586 return EGL_TRUE;
1587 }
1588
1589 static EGLBoolean
1590 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1591 struct wl_display *wl_dpy)
1592 {
1593 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1594
1595 (void) drv;
1596
1597 if (!dri2_dpy->wl_server_drm)
1598 return EGL_FALSE;
1599
1600 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1601 dri2_dpy->wl_server_drm = NULL;
1602
1603 return EGL_TRUE;
1604 }
1605
1606 static EGLBoolean
1607 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1608 struct wl_buffer *_buffer,
1609 EGLint attribute, EGLint *value)
1610 {
1611 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1612 const struct wl_drm_components_descriptor *format;
1613
1614 if (!wayland_buffer_is_drm(&buffer->buffer))
1615 return EGL_FALSE;
1616
1617 format = buffer->driver_format;
1618 switch (attribute) {
1619 case EGL_TEXTURE_FORMAT:
1620 *value = format->components;
1621 return EGL_TRUE;
1622 case EGL_WIDTH:
1623 *value = buffer->buffer.width;
1624 break;
1625 case EGL_HEIGHT:
1626 *value = buffer->buffer.height;
1627 break;
1628 }
1629
1630 return EGL_FALSE;
1631 }
1632 #endif
1633
1634 static void
1635 dri2_unload(_EGLDriver *drv)
1636 {
1637 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1638
1639 if (dri2_drv->handle)
1640 dlclose(dri2_drv->handle);
1641 free(dri2_drv);
1642 }
1643
1644 static EGLBoolean
1645 dri2_load(_EGLDriver *drv)
1646 {
1647 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1648 #ifdef HAVE_SHARED_GLAPI
1649 #ifdef HAVE_ANDROID_PLATFORM
1650 const char *libname = "libglapi.so";
1651 #else
1652 const char *libname = "libglapi.so.0";
1653 #endif
1654 #else
1655 /*
1656 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1657 * tell which one to load.
1658 */
1659 const char *libname = NULL;
1660 #endif
1661 void *handle;
1662
1663 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1664 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1665 if (handle) {
1666 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1667 dlsym(handle, "_glapi_get_proc_address");
1668 if (!dri2_drv->get_proc_address || !libname) {
1669 /* no need to keep a reference */
1670 dlclose(handle);
1671 handle = NULL;
1672 }
1673 }
1674
1675 /* if glapi is not available, loading DRI drivers will fail */
1676 if (!dri2_drv->get_proc_address) {
1677 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1678 return EGL_FALSE;
1679 }
1680
1681 dri2_drv->glFlush = (void (*)(void))
1682 dri2_drv->get_proc_address("glFlush");
1683
1684 dri2_drv->handle = handle;
1685
1686 return EGL_TRUE;
1687 }
1688
1689 /**
1690 * This is the main entrypoint into the driver, called by libEGL.
1691 * Create a new _EGLDriver object and init its dispatch table.
1692 */
1693 _EGLDriver *
1694 _eglBuiltInDriverDRI2(const char *args)
1695 {
1696 struct dri2_egl_driver *dri2_drv;
1697
1698 (void) args;
1699
1700 dri2_drv = calloc(1, sizeof *dri2_drv);
1701 if (!dri2_drv)
1702 return NULL;
1703
1704 if (!dri2_load(&dri2_drv->base)) {
1705 free(dri2_drv);
1706 return NULL;
1707 }
1708
1709 _eglInitDriverFallbacks(&dri2_drv->base);
1710 dri2_drv->base.API.Initialize = dri2_initialize;
1711 dri2_drv->base.API.Terminate = dri2_terminate;
1712 dri2_drv->base.API.CreateContext = dri2_create_context;
1713 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
1714 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1715 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1716 dri2_drv->base.API.WaitClient = dri2_wait_client;
1717 dri2_drv->base.API.WaitNative = dri2_wait_native;
1718 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1719 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1720 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1721 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1722 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1723 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1724 #ifdef HAVE_WAYLAND_PLATFORM
1725 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1726 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1727 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
1728 #endif
1729
1730 dri2_drv->base.Name = "DRI2";
1731 dri2_drv->base.Unload = dri2_unload;
1732
1733 return &dri2_drv->base;
1734 }