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egl: break instead of looping after driver is found
[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 #ifdef HAVE_DRM_PLATFORM
37 #include <xf86drm.h>
38 #include <drm_fourcc.h>
39 #endif
40 #include <GL/gl.h>
41 #include <GL/internal/dri_interface.h>
42 #include <sys/types.h>
43 #include <sys/stat.h>
44
45 #include "egl_dri2.h"
46
47 #ifdef HAVE_WAYLAND_PLATFORM
48 #include "wayland-drm.h"
49 #endif
50
51 const __DRIuseInvalidateExtension use_invalidate = {
52 { __DRI_USE_INVALIDATE, 1 }
53 };
54
55 EGLint dri2_to_egl_attribute_map[] = {
56 0,
57 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
58 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
59 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
60 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
61 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
62 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
63 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
64 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
65 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
66 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
67 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
68 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
69 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
70 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
71 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
72 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
73 0, /* __DRI_ATTRIB_RENDER_TYPE, */
74 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
75 0, /* __DRI_ATTRIB_CONFORMANT */
76 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
77 0, /* __DRI_ATTRIB_STEREO */
78 0, /* __DRI_ATTRIB_AUX_BUFFERS */
79 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
80 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
81 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
82 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
83 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
84 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
85 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
86 0, /* __DRI_ATTRIB_RED_MASK */
87 0, /* __DRI_ATTRIB_GREEN_MASK */
88 0, /* __DRI_ATTRIB_BLUE_MASK */
89 0, /* __DRI_ATTRIB_ALPHA_MASK */
90 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
91 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
92 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
93 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
94 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
95 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
96 0, /* __DRI_ATTRIB_SWAP_METHOD */
97 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
98 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
99 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
100 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
101 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
102 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
103 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
104 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
105 };
106
107 static EGLBoolean
108 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
109 {
110 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
111 return EGL_FALSE;
112
113 if (!_eglMatchConfig(conf, criteria))
114 return EGL_FALSE;
115
116 return EGL_TRUE;
117 }
118
119 struct dri2_egl_config *
120 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
121 EGLint surface_type, const EGLint *attr_list,
122 const unsigned int *rgba_masks)
123 {
124 struct dri2_egl_config *conf;
125 struct dri2_egl_display *dri2_dpy;
126 _EGLConfig base;
127 unsigned int attrib, value, double_buffer;
128 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
129 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
130 _EGLConfig *matching_config;
131 EGLint num_configs = 0;
132 EGLint config_id;
133 int i;
134
135 dri2_dpy = disp->DriverData;
136 _eglInitConfig(&base, disp, id);
137
138 i = 0;
139 double_buffer = 0;
140 bind_to_texture_rgb = 0;
141 bind_to_texture_rgba = 0;
142
143 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
144 switch (attrib) {
145 case __DRI_ATTRIB_RENDER_TYPE:
146 if (value & __DRI_ATTRIB_RGBA_BIT)
147 value = EGL_RGB_BUFFER;
148 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
149 value = EGL_LUMINANCE_BUFFER;
150 else
151 return NULL;
152 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
153 break;
154
155 case __DRI_ATTRIB_CONFIG_CAVEAT:
156 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
157 value = EGL_NON_CONFORMANT_CONFIG;
158 else if (value & __DRI_ATTRIB_SLOW_BIT)
159 value = EGL_SLOW_CONFIG;
160 else
161 value = EGL_NONE;
162 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
163 break;
164
165 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
166 bind_to_texture_rgb = value;
167 break;
168
169 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
170 bind_to_texture_rgba = value;
171 break;
172
173 case __DRI_ATTRIB_DOUBLE_BUFFER:
174 double_buffer = value;
175 break;
176
177 case __DRI_ATTRIB_RED_MASK:
178 dri_masks[0] = value;
179 break;
180
181 case __DRI_ATTRIB_GREEN_MASK:
182 dri_masks[1] = value;
183 break;
184
185 case __DRI_ATTRIB_BLUE_MASK:
186 dri_masks[2] = value;
187 break;
188
189 case __DRI_ATTRIB_ALPHA_MASK:
190 dri_masks[3] = value;
191 break;
192
193 default:
194 key = dri2_to_egl_attribute_map[attrib];
195 if (key != 0)
196 _eglSetConfigKey(&base, key, value);
197 break;
198 }
199 }
200
201 if (attr_list)
202 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
203 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
204
205 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
206 return NULL;
207
208 base.NativeRenderable = EGL_TRUE;
209
210 base.SurfaceType = surface_type;
211 if (surface_type & (EGL_PBUFFER_BIT |
212 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
213 base.BindToTextureRGB = bind_to_texture_rgb;
214 if (base.AlphaSize > 0)
215 base.BindToTextureRGBA = bind_to_texture_rgba;
216 }
217
218 base.RenderableType = disp->ClientAPIs;
219 base.Conformant = disp->ClientAPIs;
220
221 base.MinSwapInterval = dri2_dpy->min_swap_interval;
222 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
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
273 conf->base.SurfaceType |= surface_type;
274
275 return conf;
276 }
277
278 __DRIimage *
279 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
280 {
281 _EGLDisplay *disp = data;
282 struct dri2_egl_image *dri2_img;
283 _EGLImage *img;
284
285 (void) screen;
286
287 img = _eglLookupImage(image, disp);
288 if (img == NULL) {
289 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
290 return NULL;
291 }
292
293 dri2_img = dri2_egl_image(image);
294
295 return dri2_img->dri_image;
296 }
297
298 const __DRIimageLookupExtension image_lookup_extension = {
299 { __DRI_IMAGE_LOOKUP, 1 },
300 dri2_lookup_egl_image
301 };
302
303 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
304
305 struct dri2_extension_match {
306 const char *name;
307 int version;
308 int offset;
309 };
310
311 static struct dri2_extension_match dri2_driver_extensions[] = {
312 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
313 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
314 { NULL, 0, 0 }
315 };
316
317 static struct dri2_extension_match dri2_core_extensions[] = {
318 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
319 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
320 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
321 { NULL, 0, 0 }
322 };
323
324 static struct dri2_extension_match swrast_driver_extensions[] = {
325 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
326 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
327 { NULL, 0, 0 }
328 };
329
330 static struct dri2_extension_match swrast_core_extensions[] = {
331 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
332 { NULL, 0, 0 }
333 };
334
335 static EGLBoolean
336 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
337 struct dri2_extension_match *matches,
338 const __DRIextension **extensions)
339 {
340 int i, j, ret = EGL_TRUE;
341 void *field;
342
343 for (i = 0; extensions[i]; i++) {
344 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
345 for (j = 0; matches[j].name; j++) {
346 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
347 extensions[i]->version >= matches[j].version) {
348 field = ((char *) dri2_dpy + matches[j].offset);
349 *(const __DRIextension **) field = extensions[i];
350 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
351 extensions[i]->name, extensions[i]->version);
352 }
353 }
354 }
355
356 for (j = 0; matches[j].name; j++) {
357 field = ((char *) dri2_dpy + matches[j].offset);
358 if (*(const __DRIextension **) field == NULL) {
359 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
360 matches[j].name, matches[j].version);
361 ret = EGL_FALSE;
362 }
363 }
364
365 return ret;
366 }
367
368 static const __DRIextension **
369 dri2_open_driver(_EGLDisplay *disp)
370 {
371 struct dri2_egl_display *dri2_dpy = disp->DriverData;
372 const __DRIextension **extensions = NULL;
373 char path[PATH_MAX], *search_paths, *p, *next, *end;
374 char *get_extensions_name;
375 const __DRIextension **(*get_extensions)(void);
376
377 search_paths = NULL;
378 if (geteuid() == getuid()) {
379 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
380 search_paths = getenv("LIBGL_DRIVERS_PATH");
381 }
382 if (search_paths == NULL)
383 search_paths = DEFAULT_DRIVER_DIR;
384
385 dri2_dpy->driver = NULL;
386 end = search_paths + strlen(search_paths);
387 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
388 int len;
389 next = strchr(p, ':');
390 if (next == NULL)
391 next = end;
392
393 len = next - p;
394 #if GLX_USE_TLS
395 snprintf(path, sizeof path,
396 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
397 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
398 #endif
399 if (dri2_dpy->driver == NULL) {
400 snprintf(path, sizeof path,
401 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
402 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
403 if (dri2_dpy->driver == NULL)
404 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
405 }
406 /* not need continue to loop all paths once the driver is found */
407 if (dri2_dpy->driver != NULL)
408 break;
409 }
410
411 if (dri2_dpy->driver == NULL) {
412 _eglLog(_EGL_WARNING,
413 "DRI2: failed to open %s (search paths %s)",
414 dri2_dpy->driver_name, search_paths);
415 return NULL;
416 }
417
418 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
419
420 if (asprintf(&get_extensions_name, "%s_%s",
421 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
422 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
423 if (get_extensions) {
424 extensions = get_extensions();
425 } else {
426 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
427 get_extensions_name, dlerror());
428 }
429 free(get_extensions_name);
430 }
431
432 if (!extensions)
433 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
434 if (extensions == NULL) {
435 _eglLog(_EGL_WARNING,
436 "DRI2: driver exports no extensions (%s)", dlerror());
437 dlclose(dri2_dpy->driver);
438 }
439
440 return extensions;
441 }
442
443 EGLBoolean
444 dri2_load_driver(_EGLDisplay *disp)
445 {
446 struct dri2_egl_display *dri2_dpy = disp->DriverData;
447 const __DRIextension **extensions;
448
449 extensions = dri2_open_driver(disp);
450 if (!extensions)
451 return EGL_FALSE;
452
453 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
454 dlclose(dri2_dpy->driver);
455 return EGL_FALSE;
456 }
457 dri2_dpy->driver_extensions = extensions;
458
459 return EGL_TRUE;
460 }
461
462 EGLBoolean
463 dri2_load_driver_swrast(_EGLDisplay *disp)
464 {
465 struct dri2_egl_display *dri2_dpy = disp->DriverData;
466 const __DRIextension **extensions;
467
468 dri2_dpy->driver_name = "swrast";
469 extensions = dri2_open_driver(disp);
470
471 if (!extensions)
472 return EGL_FALSE;
473
474 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
475 dlclose(dri2_dpy->driver);
476 return EGL_FALSE;
477 }
478 dri2_dpy->driver_extensions = extensions;
479
480 return EGL_TRUE;
481 }
482
483 void
484 dri2_setup_screen(_EGLDisplay *disp)
485 {
486 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
487 unsigned int api_mask;
488
489 if (dri2_dpy->dri2) {
490 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
491 } else {
492 assert(dri2_dpy->swrast);
493 api_mask = 1 << __DRI_API_OPENGL |
494 1 << __DRI_API_GLES |
495 1 << __DRI_API_GLES2 |
496 1 << __DRI_API_GLES3;
497 }
498
499 disp->ClientAPIs = 0;
500 if (api_mask & (1 <<__DRI_API_OPENGL))
501 disp->ClientAPIs |= EGL_OPENGL_BIT;
502 if (api_mask & (1 <<__DRI_API_GLES))
503 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
504 if (api_mask & (1 << __DRI_API_GLES2))
505 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
506 if (api_mask & (1 << __DRI_API_GLES3))
507 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
508
509 assert(dri2_dpy->dri2 || dri2_dpy->swrast);
510 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
511
512 if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
513 disp->Extensions.KHR_create_context = EGL_TRUE;
514
515 if (dri2_dpy->robustness)
516 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
517 }
518
519 if (dri2_dpy->image) {
520 disp->Extensions.MESA_drm_image = EGL_TRUE;
521 disp->Extensions.KHR_image_base = EGL_TRUE;
522 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
523 if (dri2_dpy->image->base.version >= 5 &&
524 dri2_dpy->image->createImageFromTexture) {
525 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
526 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
527 }
528 #ifdef HAVE_DRM_PLATFORM
529 if (dri2_dpy->image->base.version >= 8 &&
530 dri2_dpy->image->createImageFromDmaBufs) {
531 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
532 }
533 #endif
534 }
535 }
536
537 EGLBoolean
538 dri2_create_screen(_EGLDisplay *disp)
539 {
540 const __DRIextension **extensions;
541 struct dri2_egl_display *dri2_dpy;
542
543 dri2_dpy = disp->DriverData;
544
545 if (dri2_dpy->dri2) {
546 if (dri2_dpy->dri2->base.version >= 4) {
547 dri2_dpy->dri_screen =
548 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
549 dri2_dpy->extensions,
550 dri2_dpy->driver_extensions,
551 &dri2_dpy->driver_configs, disp);
552 } else {
553 dri2_dpy->dri_screen =
554 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
555 dri2_dpy->extensions,
556 &dri2_dpy->driver_configs, disp);
557 }
558 } else {
559 assert(dri2_dpy->swrast);
560 if (dri2_dpy->swrast->base.version >= 4) {
561 dri2_dpy->dri_screen =
562 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
563 dri2_dpy->driver_extensions,
564 &dri2_dpy->driver_configs, disp);
565 } else {
566 dri2_dpy->dri_screen =
567 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
568 &dri2_dpy->driver_configs, disp);
569 }
570 }
571
572 if (dri2_dpy->dri_screen == NULL) {
573 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
574 return EGL_FALSE;
575 }
576
577 dri2_dpy->own_dri_screen = 1;
578
579 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
580
581 if (dri2_dpy->dri2) {
582 unsigned i;
583
584 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
585 goto cleanup_dri_screen;
586
587 for (i = 0; extensions[i]; i++) {
588 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
589 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
590 }
591 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
592 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
593 }
594 }
595 } else {
596 assert(dri2_dpy->swrast);
597 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
598 goto cleanup_dri_screen;
599 }
600
601 dri2_setup_screen(disp);
602
603 return EGL_TRUE;
604
605 cleanup_dri_screen:
606 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
607
608 return EGL_FALSE;
609 }
610
611 /**
612 * Called via eglInitialize(), GLX_drv->API.Initialize().
613 */
614 static EGLBoolean
615 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
616 {
617 /* not until swrast_dri is supported */
618 if (disp->Options.UseFallback)
619 return EGL_FALSE;
620
621 switch (disp->Platform) {
622 #ifdef HAVE_X11_PLATFORM
623 case _EGL_PLATFORM_X11:
624 if (disp->Options.TestOnly)
625 return EGL_TRUE;
626 return dri2_initialize_x11(drv, disp);
627 #endif
628
629 #ifdef HAVE_LIBUDEV
630 #ifdef HAVE_DRM_PLATFORM
631 case _EGL_PLATFORM_DRM:
632 if (disp->Options.TestOnly)
633 return EGL_TRUE;
634 return dri2_initialize_drm(drv, disp);
635 #endif
636 #ifdef HAVE_WAYLAND_PLATFORM
637 case _EGL_PLATFORM_WAYLAND:
638 if (disp->Options.TestOnly)
639 return EGL_TRUE;
640 return dri2_initialize_wayland(drv, disp);
641 #endif
642 #endif
643 #ifdef HAVE_ANDROID_PLATFORM
644 case _EGL_PLATFORM_ANDROID:
645 if (disp->Options.TestOnly)
646 return EGL_TRUE;
647 return dri2_initialize_android(drv, disp);
648 #endif
649
650 default:
651 return EGL_FALSE;
652 }
653 }
654
655 /**
656 * Called via eglTerminate(), drv->API.Terminate().
657 */
658 static EGLBoolean
659 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
660 {
661 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
662
663 _eglReleaseDisplayResources(drv, disp);
664 _eglCleanupDisplay(disp);
665
666 if (dri2_dpy->own_dri_screen)
667 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
668 if (dri2_dpy->fd)
669 close(dri2_dpy->fd);
670 if (dri2_dpy->driver)
671 dlclose(dri2_dpy->driver);
672 free(dri2_dpy->device_name);
673
674 if (disp->PlatformDisplay == NULL) {
675 switch (disp->Platform) {
676 #ifdef HAVE_X11_PLATFORM
677 case _EGL_PLATFORM_X11:
678 xcb_disconnect(dri2_dpy->conn);
679 break;
680 #endif
681 #ifdef HAVE_DRM_PLATFORM
682 case _EGL_PLATFORM_DRM:
683 if (dri2_dpy->own_device) {
684 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
685 }
686 break;
687 #endif
688 default:
689 break;
690 }
691 }
692
693 free(dri2_dpy);
694 disp->DriverData = NULL;
695
696 return EGL_TRUE;
697 }
698
699 /**
700 * Set the error code after a call to
701 * dri2_egl_display::dri2::createContextAttribs.
702 */
703 static void
704 dri2_create_context_attribs_error(int dri_error)
705 {
706 EGLint egl_error;
707
708 switch (dri_error) {
709 case __DRI_CTX_ERROR_SUCCESS:
710 return;
711
712 case __DRI_CTX_ERROR_NO_MEMORY:
713 egl_error = EGL_BAD_ALLOC;
714 break;
715
716 /* From the EGL_KHR_create_context spec, section "Errors":
717 *
718 * * If <config> does not support a client API context compatible
719 * with the requested API major and minor version, [...] context flags,
720 * and context reset notification behavior (for client API types where
721 * these attributes are supported), then an EGL_BAD_MATCH error is
722 * generated.
723 *
724 * * If an OpenGL ES context is requested and the values for
725 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
726 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
727 * is not defined, than an EGL_BAD_MATCH error is generated.
728 *
729 * * If an OpenGL context is requested, the requested version is
730 * greater than 3.2, and the value for attribute
731 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
732 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
733 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
734 * one of these bits set; or if the implementation does not support
735 * the requested profile, then an EGL_BAD_MATCH error is generated.
736 */
737 case __DRI_CTX_ERROR_BAD_API:
738 case __DRI_CTX_ERROR_BAD_VERSION:
739 case __DRI_CTX_ERROR_BAD_FLAG:
740 egl_error = EGL_BAD_MATCH;
741 break;
742
743 /* From the EGL_KHR_create_context spec, section "Errors":
744 *
745 * * If an attribute name or attribute value in <attrib_list> is not
746 * recognized (including unrecognized bits in bitmask attributes),
747 * then an EGL_BAD_ATTRIBUTE error is generated."
748 */
749 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
750 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
751 egl_error = EGL_BAD_ATTRIBUTE;
752 break;
753
754 default:
755 assert(0);
756 egl_error = EGL_BAD_MATCH;
757 break;
758 }
759
760 _eglError(egl_error, "dri2_create_context");
761 }
762
763 /**
764 * Called via eglCreateContext(), drv->API.CreateContext().
765 */
766 static _EGLContext *
767 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
768 _EGLContext *share_list, const EGLint *attrib_list)
769 {
770 struct dri2_egl_context *dri2_ctx;
771 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
772 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
773 __DRIcontext *shared =
774 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
775 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
776 const __DRIconfig *dri_config;
777 int api;
778
779 (void) drv;
780
781 dri2_ctx = malloc(sizeof *dri2_ctx);
782 if (!dri2_ctx) {
783 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
784 return NULL;
785 }
786
787 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
788 goto cleanup;
789
790 switch (dri2_ctx->base.ClientAPI) {
791 case EGL_OPENGL_ES_API:
792 switch (dri2_ctx->base.ClientMajorVersion) {
793 case 1:
794 api = __DRI_API_GLES;
795 break;
796 case 2:
797 api = __DRI_API_GLES2;
798 break;
799 case 3:
800 api = __DRI_API_GLES3;
801 break;
802 default:
803 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
804 return NULL;
805 }
806 break;
807 case EGL_OPENGL_API:
808 if ((dri2_ctx->base.ClientMajorVersion >= 4
809 || (dri2_ctx->base.ClientMajorVersion == 3
810 && dri2_ctx->base.ClientMinorVersion >= 2))
811 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
812 api = __DRI_API_OPENGL_CORE;
813 else
814 api = __DRI_API_OPENGL;
815 break;
816 default:
817 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
818 free(dri2_ctx);
819 return NULL;
820 }
821
822 if (conf != NULL) {
823 /* The config chosen here isn't necessarily
824 * used for surfaces later.
825 * A pixmap surface will use the single config.
826 * This opportunity depends on disabling the
827 * doubleBufferMode check in
828 * src/mesa/main/context.c:check_compatible()
829 */
830 if (dri2_config->dri_double_config)
831 dri_config = dri2_config->dri_double_config;
832 else
833 dri_config = dri2_config->dri_single_config;
834
835 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
836 * makes sure the back buffer will always be used.
837 */
838 if (conf->SurfaceType & EGL_WINDOW_BIT)
839 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
840 }
841 else
842 dri_config = NULL;
843
844 if (dri2_dpy->dri2) {
845 if (dri2_dpy->dri2->base.version >= 3) {
846 unsigned error;
847 unsigned num_attribs = 0;
848 uint32_t ctx_attribs[8];
849
850 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
851 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMajorVersion;
852 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
853 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMinorVersion;
854
855 if (dri2_ctx->base.Flags != 0) {
856 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
857 * extension, don't even try to send it the robust-access flag.
858 * It may explode. Instead, generate the required EGL error here.
859 */
860 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
861 && !dri2_dpy->robustness) {
862 _eglError(EGL_BAD_MATCH, "eglCreateContext");
863 goto cleanup;
864 }
865
866 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
867 ctx_attribs[num_attribs++] = dri2_ctx->base.Flags;
868 }
869
870 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
871 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
872 * extension, don't even try to send it a reset strategy. It may
873 * explode. Instead, generate the required EGL error here.
874 */
875 if (!dri2_dpy->robustness) {
876 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
877 goto cleanup;
878 }
879
880 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
881 ctx_attribs[num_attribs++] = __DRI_CTX_RESET_LOSE_CONTEXT;
882 }
883
884 assert(num_attribs <= ARRAY_SIZE(ctx_attribs));
885
886 dri2_ctx->dri_context =
887 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
888 api,
889 dri_config,
890 shared,
891 num_attribs / 2,
892 ctx_attribs,
893 & error,
894 dri2_ctx);
895 dri2_create_context_attribs_error(error);
896 } else {
897 dri2_ctx->dri_context =
898 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
899 api,
900 dri_config,
901 shared,
902 dri2_ctx);
903 }
904 } else {
905 assert(dri2_dpy->swrast);
906 dri2_ctx->dri_context =
907 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
908 api,
909 dri_config,
910 shared,
911 dri2_ctx);
912 }
913
914 if (!dri2_ctx->dri_context)
915 goto cleanup;
916
917 return &dri2_ctx->base;
918
919 cleanup:
920 free(dri2_ctx);
921 return NULL;
922 }
923
924 /**
925 * Called via eglDestroyContext(), drv->API.DestroyContext().
926 */
927 static EGLBoolean
928 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
929 {
930 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
931 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
932
933 if (_eglPutContext(ctx)) {
934 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
935 free(dri2_ctx);
936 }
937
938 return EGL_TRUE;
939 }
940
941 /**
942 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
943 */
944 static EGLBoolean
945 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
946 _EGLSurface *rsurf, _EGLContext *ctx)
947 {
948 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
949 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
950 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
951 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
952 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
953 _EGLContext *old_ctx;
954 _EGLSurface *old_dsurf, *old_rsurf;
955 __DRIdrawable *ddraw, *rdraw;
956 __DRIcontext *cctx;
957
958 /* make new bindings */
959 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
960 return EGL_FALSE;
961
962 /* flush before context switch */
963 if (old_ctx && dri2_drv->glFlush)
964 dri2_drv->glFlush();
965
966 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
967 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
968 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
969
970 if (old_ctx) {
971 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
972 dri2_dpy->core->unbindContext(old_cctx);
973 }
974
975 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
976 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
977 if (old_dsurf)
978 drv->API.DestroySurface(drv, disp, old_dsurf);
979 if (old_rsurf)
980 drv->API.DestroySurface(drv, disp, old_rsurf);
981 if (old_ctx)
982 drv->API.DestroyContext(drv, disp, old_ctx);
983
984 return EGL_TRUE;
985 } else {
986 /* undo the previous _eglBindContext */
987 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
988 assert(&dri2_ctx->base == ctx &&
989 &dri2_dsurf->base == dsurf &&
990 &dri2_rsurf->base == rsurf);
991
992 _eglPutSurface(dsurf);
993 _eglPutSurface(rsurf);
994 _eglPutContext(ctx);
995
996 _eglPutSurface(old_dsurf);
997 _eglPutSurface(old_rsurf);
998 _eglPutContext(old_ctx);
999
1000 return EGL_FALSE;
1001 }
1002 }
1003
1004 /*
1005 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1006 */
1007 static _EGLProc
1008 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1009 {
1010 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1011
1012 return dri2_drv->get_proc_address(procname);
1013 }
1014
1015 static EGLBoolean
1016 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1017 {
1018 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1019 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1020
1021 (void) drv;
1022
1023 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1024 * we need to copy fake to real here.*/
1025
1026 if (dri2_dpy->flush != NULL)
1027 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1028
1029 return EGL_TRUE;
1030 }
1031
1032 static EGLBoolean
1033 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1034 {
1035 (void) drv;
1036 (void) disp;
1037
1038 if (engine != EGL_CORE_NATIVE_ENGINE)
1039 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1040 /* glXWaitX(); */
1041
1042 return EGL_TRUE;
1043 }
1044
1045 static EGLBoolean
1046 dri2_bind_tex_image(_EGLDriver *drv,
1047 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1048 {
1049 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1050 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1051 struct dri2_egl_context *dri2_ctx;
1052 _EGLContext *ctx;
1053 GLint format, target;
1054
1055 ctx = _eglGetCurrentContext();
1056 dri2_ctx = dri2_egl_context(ctx);
1057
1058 if (!_eglBindTexImage(drv, disp, surf, buffer))
1059 return EGL_FALSE;
1060
1061 switch (dri2_surf->base.TextureFormat) {
1062 case EGL_TEXTURE_RGB:
1063 format = __DRI_TEXTURE_FORMAT_RGB;
1064 break;
1065 case EGL_TEXTURE_RGBA:
1066 format = __DRI_TEXTURE_FORMAT_RGBA;
1067 break;
1068 default:
1069 assert(0);
1070 }
1071
1072 switch (dri2_surf->base.TextureTarget) {
1073 case EGL_TEXTURE_2D:
1074 target = GL_TEXTURE_2D;
1075 break;
1076 default:
1077 assert(0);
1078 }
1079
1080 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1081 target, format,
1082 dri2_surf->dri_drawable);
1083
1084 return EGL_TRUE;
1085 }
1086
1087 static EGLBoolean
1088 dri2_release_tex_image(_EGLDriver *drv,
1089 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1090 {
1091 #if __DRI_TEX_BUFFER_VERSION >= 3
1092 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1093 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1094 struct dri2_egl_context *dri2_ctx;
1095 _EGLContext *ctx;
1096 GLint target;
1097
1098 ctx = _eglGetCurrentContext();
1099 dri2_ctx = dri2_egl_context(ctx);
1100
1101 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1102 return EGL_FALSE;
1103
1104 switch (dri2_surf->base.TextureTarget) {
1105 case EGL_TEXTURE_2D:
1106 target = GL_TEXTURE_2D;
1107 break;
1108 default:
1109 assert(0);
1110 }
1111 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
1112 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1113 target,
1114 dri2_surf->dri_drawable);
1115 #endif
1116
1117 return EGL_TRUE;
1118 }
1119
1120 static _EGLImage *
1121 dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
1122 {
1123 struct dri2_egl_image *dri2_img;
1124
1125 if (dri_image == NULL) {
1126 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1127 return NULL;
1128 }
1129
1130 dri2_img = malloc(sizeof *dri2_img);
1131 if (!dri2_img) {
1132 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1133 return NULL;
1134 }
1135
1136 if (!_eglInitImage(&dri2_img->base, disp)) {
1137 free(dri2_img);
1138 return NULL;
1139 }
1140
1141 dri2_img->dri_image = dri_image;
1142
1143 return &dri2_img->base;
1144 }
1145
1146 static _EGLImage *
1147 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1148 EGLClientBuffer buffer,
1149 const EGLint *attr_list)
1150 {
1151 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1152 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1153 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1154 __DRIimage *dri_image;
1155
1156 if (renderbuffer == 0) {
1157 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1158 return EGL_NO_IMAGE_KHR;
1159 }
1160
1161 dri_image =
1162 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1163 renderbuffer, NULL);
1164
1165 return dri2_create_image(disp, dri_image);
1166 }
1167
1168 #ifdef HAVE_DRM_PLATFORM
1169 static _EGLImage *
1170 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1171 EGLClientBuffer buffer, const EGLint *attr_list)
1172 {
1173 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1174 EGLint format, name, pitch, err;
1175 _EGLImageAttribs attrs;
1176 __DRIimage *dri_image;
1177
1178 name = (EGLint) (uintptr_t) buffer;
1179
1180 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1181 if (err != EGL_SUCCESS)
1182 return NULL;
1183
1184 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1185 attrs.DRMBufferStrideMESA <= 0) {
1186 _eglError(EGL_BAD_PARAMETER,
1187 "bad width, height or stride");
1188 return NULL;
1189 }
1190
1191 switch (attrs.DRMBufferFormatMESA) {
1192 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1193 format = __DRI_IMAGE_FORMAT_ARGB8888;
1194 pitch = attrs.DRMBufferStrideMESA;
1195 break;
1196 default:
1197 _eglError(EGL_BAD_PARAMETER,
1198 "dri2_create_image_khr: unsupported pixmap depth");
1199 return NULL;
1200 }
1201
1202 dri_image =
1203 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1204 attrs.Width,
1205 attrs.Height,
1206 format,
1207 name,
1208 pitch,
1209 NULL);
1210
1211 return dri2_create_image(disp, dri_image);
1212 }
1213 #endif
1214
1215 #ifdef HAVE_WAYLAND_PLATFORM
1216
1217 /* This structure describes how a wl_buffer maps to one or more
1218 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1219 * offsets and strides of the planes in the buffer. This table maps a
1220 * wl_drm format code to a description of the planes in the buffer
1221 * that lets us create a __DRIimage for each of the planes. */
1222
1223 static const struct wl_drm_components_descriptor {
1224 uint32_t dri_components;
1225 EGLint components;
1226 int nplanes;
1227 } wl_drm_components[] = {
1228 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1229 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1230 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1231 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1232 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1233 };
1234
1235 static _EGLImage *
1236 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1237 EGLClientBuffer _buffer,
1238 const EGLint *attr_list)
1239 {
1240 struct wl_drm_buffer *buffer;
1241 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1242 const struct wl_drm_components_descriptor *f;
1243 __DRIimage *dri_image;
1244 _EGLImageAttribs attrs;
1245 EGLint err;
1246 int32_t plane;
1247
1248 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1249 (struct wl_resource *) _buffer);
1250 if (!buffer)
1251 return NULL;
1252
1253 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1254 plane = attrs.PlaneWL;
1255 if (err != EGL_SUCCESS) {
1256 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1257 return NULL;
1258 }
1259
1260 f = buffer->driver_format;
1261 if (plane < 0 || plane >= f->nplanes) {
1262 _eglError(EGL_BAD_PARAMETER,
1263 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1264 return NULL;
1265 }
1266
1267 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1268
1269 if (dri_image == NULL) {
1270 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1271 return NULL;
1272 }
1273
1274 return dri2_create_image(disp, dri_image);
1275 }
1276 #endif
1277
1278 /**
1279 * Set the error code after a call to
1280 * dri2_egl_image::dri_image::createImageFromTexture.
1281 */
1282 static void
1283 dri2_create_image_khr_texture_error(int dri_error)
1284 {
1285 EGLint egl_error;
1286
1287 switch (dri_error) {
1288 case __DRI_IMAGE_ERROR_SUCCESS:
1289 return;
1290
1291 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1292 egl_error = EGL_BAD_ALLOC;
1293 break;
1294
1295 case __DRI_IMAGE_ERROR_BAD_MATCH:
1296 egl_error = EGL_BAD_MATCH;
1297 break;
1298
1299 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1300 egl_error = EGL_BAD_PARAMETER;
1301 break;
1302
1303 default:
1304 assert(0);
1305 egl_error = EGL_BAD_MATCH;
1306 break;
1307 }
1308
1309 _eglError(egl_error, "dri2_create_image_khr_texture");
1310 }
1311
1312 static _EGLImage *
1313 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1314 EGLenum target,
1315 EGLClientBuffer buffer,
1316 const EGLint *attr_list)
1317 {
1318 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1319 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1320 struct dri2_egl_image *dri2_img;
1321 GLuint texture = (GLuint) (uintptr_t) buffer;
1322 _EGLImageAttribs attrs;
1323 GLuint depth;
1324 GLenum gl_target;
1325 unsigned error;
1326
1327 if (texture == 0) {
1328 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1329 return EGL_NO_IMAGE_KHR;
1330 }
1331
1332 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1333 return EGL_NO_IMAGE_KHR;
1334
1335 switch (target) {
1336 case EGL_GL_TEXTURE_2D_KHR:
1337 depth = 0;
1338 gl_target = GL_TEXTURE_2D;
1339 break;
1340 case EGL_GL_TEXTURE_3D_KHR:
1341 depth = attrs.GLTextureZOffset;
1342 gl_target = GL_TEXTURE_3D;
1343 break;
1344 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1345 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1346 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1347 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1348 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1349 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1350 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1351 gl_target = GL_TEXTURE_CUBE_MAP;
1352 break;
1353 default:
1354 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1355 return EGL_NO_IMAGE_KHR;
1356 }
1357
1358 dri2_img = malloc(sizeof *dri2_img);
1359 if (!dri2_img) {
1360 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1361 return EGL_NO_IMAGE_KHR;
1362 }
1363
1364 if (!_eglInitImage(&dri2_img->base, disp)) {
1365 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1366 free(dri2_img);
1367 return EGL_NO_IMAGE_KHR;
1368 }
1369
1370 dri2_img->dri_image =
1371 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1372 gl_target,
1373 texture,
1374 depth,
1375 attrs.GLTextureLevel,
1376 &error,
1377 dri2_img);
1378 dri2_create_image_khr_texture_error(error);
1379
1380 if (!dri2_img->dri_image) {
1381 free(dri2_img);
1382 return EGL_NO_IMAGE_KHR;
1383 }
1384 return &dri2_img->base;
1385 }
1386
1387 #ifdef HAVE_DRM_PLATFORM
1388 static EGLBoolean
1389 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1390 {
1391 unsigned i;
1392
1393 /**
1394 * The spec says:
1395 *
1396 * "Required attributes and their values are as follows:
1397 *
1398 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1399 *
1400 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1401 * by drm_fourcc.h and used as the pixel_format parameter of the
1402 * drm_mode_fb_cmd2 ioctl."
1403 *
1404 * and
1405 *
1406 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1407 * incomplete, EGL_BAD_PARAMETER is generated."
1408 */
1409 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1410 !attrs->DMABufFourCC.IsPresent) {
1411 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1412 return EGL_FALSE;
1413 }
1414
1415 /**
1416 * Also:
1417 *
1418 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1419 * specified for a plane's pitch or offset isn't supported by EGL,
1420 * EGL_BAD_ACCESS is generated."
1421 */
1422 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1423 if (attrs->DMABufPlanePitches[i].IsPresent &&
1424 attrs->DMABufPlanePitches[i].Value <= 0) {
1425 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1426 return EGL_FALSE;
1427 }
1428 }
1429
1430 return EGL_TRUE;
1431 }
1432
1433 /* Returns the total number of file descriptors. Zero indicates an error. */
1434 static unsigned
1435 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1436 {
1437 unsigned i, plane_n;
1438
1439 switch (attrs->DMABufFourCC.Value) {
1440 case DRM_FORMAT_RGB332:
1441 case DRM_FORMAT_BGR233:
1442 case DRM_FORMAT_XRGB4444:
1443 case DRM_FORMAT_XBGR4444:
1444 case DRM_FORMAT_RGBX4444:
1445 case DRM_FORMAT_BGRX4444:
1446 case DRM_FORMAT_ARGB4444:
1447 case DRM_FORMAT_ABGR4444:
1448 case DRM_FORMAT_RGBA4444:
1449 case DRM_FORMAT_BGRA4444:
1450 case DRM_FORMAT_XRGB1555:
1451 case DRM_FORMAT_XBGR1555:
1452 case DRM_FORMAT_RGBX5551:
1453 case DRM_FORMAT_BGRX5551:
1454 case DRM_FORMAT_ARGB1555:
1455 case DRM_FORMAT_ABGR1555:
1456 case DRM_FORMAT_RGBA5551:
1457 case DRM_FORMAT_BGRA5551:
1458 case DRM_FORMAT_RGB565:
1459 case DRM_FORMAT_BGR565:
1460 case DRM_FORMAT_RGB888:
1461 case DRM_FORMAT_BGR888:
1462 case DRM_FORMAT_XRGB8888:
1463 case DRM_FORMAT_XBGR8888:
1464 case DRM_FORMAT_RGBX8888:
1465 case DRM_FORMAT_BGRX8888:
1466 case DRM_FORMAT_ARGB8888:
1467 case DRM_FORMAT_ABGR8888:
1468 case DRM_FORMAT_RGBA8888:
1469 case DRM_FORMAT_BGRA8888:
1470 case DRM_FORMAT_XRGB2101010:
1471 case DRM_FORMAT_XBGR2101010:
1472 case DRM_FORMAT_RGBX1010102:
1473 case DRM_FORMAT_BGRX1010102:
1474 case DRM_FORMAT_ARGB2101010:
1475 case DRM_FORMAT_ABGR2101010:
1476 case DRM_FORMAT_RGBA1010102:
1477 case DRM_FORMAT_BGRA1010102:
1478 case DRM_FORMAT_YUYV:
1479 case DRM_FORMAT_YVYU:
1480 case DRM_FORMAT_UYVY:
1481 case DRM_FORMAT_VYUY:
1482 plane_n = 1;
1483 break;
1484 case DRM_FORMAT_NV12:
1485 case DRM_FORMAT_NV21:
1486 case DRM_FORMAT_NV16:
1487 case DRM_FORMAT_NV61:
1488 plane_n = 2;
1489 break;
1490 case DRM_FORMAT_YUV410:
1491 case DRM_FORMAT_YVU410:
1492 case DRM_FORMAT_YUV411:
1493 case DRM_FORMAT_YVU411:
1494 case DRM_FORMAT_YUV420:
1495 case DRM_FORMAT_YVU420:
1496 case DRM_FORMAT_YUV422:
1497 case DRM_FORMAT_YVU422:
1498 case DRM_FORMAT_YUV444:
1499 case DRM_FORMAT_YVU444:
1500 plane_n = 3;
1501 break;
1502 default:
1503 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1504 return 0;
1505 }
1506
1507 /**
1508 * The spec says:
1509 *
1510 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1511 * incomplete, EGL_BAD_PARAMETER is generated."
1512 */
1513 for (i = 0; i < plane_n; ++i) {
1514 if (!attrs->DMABufPlaneFds[i].IsPresent ||
1515 !attrs->DMABufPlaneOffsets[i].IsPresent ||
1516 !attrs->DMABufPlanePitches[i].IsPresent) {
1517 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1518 return 0;
1519 }
1520 }
1521
1522 /**
1523 * The spec also says:
1524 *
1525 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
1526 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
1527 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
1528 * attributes are specified."
1529 */
1530 for (i = plane_n; i < 3; ++i) {
1531 if (attrs->DMABufPlaneFds[i].IsPresent ||
1532 attrs->DMABufPlaneOffsets[i].IsPresent ||
1533 attrs->DMABufPlanePitches[i].IsPresent) {
1534 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
1535 return 0;
1536 }
1537 }
1538
1539 return plane_n;
1540 }
1541
1542 /**
1543 * The spec says:
1544 *
1545 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target,
1546 * the EGL takes ownership of the file descriptor and is responsible for
1547 * closing it, which it may do at any time while the EGLDisplay is
1548 * initialized."
1549 */
1550 static void
1551 dri2_take_dma_buf_ownership(const int *fds, unsigned num_fds)
1552 {
1553 int already_closed[num_fds];
1554 unsigned num_closed = 0;
1555 unsigned i, j;
1556
1557 for (i = 0; i < num_fds; ++i) {
1558 /**
1559 * The same file descriptor can be referenced multiple times in case more
1560 * than one plane is found in the same buffer, just with a different
1561 * offset.
1562 */
1563 for (j = 0; j < num_closed; ++j) {
1564 if (already_closed[j] == fds[i])
1565 break;
1566 }
1567
1568 if (j == num_closed) {
1569 close(fds[i]);
1570 already_closed[num_closed++] = fds[i];
1571 }
1572 }
1573 }
1574
1575 static _EGLImage *
1576 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
1577 EGLClientBuffer buffer, const EGLint *attr_list)
1578 {
1579 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1580 _EGLImage *res;
1581 EGLint err;
1582 _EGLImageAttribs attrs;
1583 __DRIimage *dri_image;
1584 unsigned num_fds;
1585 unsigned i;
1586 int fds[3];
1587 int pitches[3];
1588 int offsets[3];
1589 unsigned error;
1590
1591 /**
1592 * The spec says:
1593 *
1594 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
1595 * error EGL_BAD_PARAMETER is generated."
1596 */
1597 if (buffer != NULL) {
1598 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
1599 return NULL;
1600 }
1601
1602 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1603 if (err != EGL_SUCCESS) {
1604 _eglError(err, "bad attribute");
1605 return NULL;
1606 }
1607
1608 if (!dri2_check_dma_buf_attribs(&attrs))
1609 return NULL;
1610
1611 num_fds = dri2_check_dma_buf_format(&attrs);
1612 if (!num_fds)
1613 return NULL;
1614
1615 for (i = 0; i < num_fds; ++i) {
1616 fds[i] = attrs.DMABufPlaneFds[i].Value;
1617 pitches[i] = attrs.DMABufPlanePitches[i].Value;
1618 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
1619 }
1620
1621 dri_image =
1622 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
1623 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
1624 fds, num_fds, pitches, offsets,
1625 attrs.DMABufYuvColorSpaceHint.Value,
1626 attrs.DMABufSampleRangeHint.Value,
1627 attrs.DMABufChromaHorizontalSiting.Value,
1628 attrs.DMABufChromaVerticalSiting.Value,
1629 &error,
1630 NULL);
1631 dri2_create_image_khr_texture_error(error);
1632
1633 if (!dri_image)
1634 return EGL_NO_IMAGE_KHR;
1635
1636 res = dri2_create_image(disp, dri_image);
1637 if (res)
1638 dri2_take_dma_buf_ownership(fds, num_fds);
1639
1640 return res;
1641 }
1642 #endif
1643
1644 _EGLImage *
1645 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1646 _EGLContext *ctx, EGLenum target,
1647 EGLClientBuffer buffer, const EGLint *attr_list)
1648 {
1649 (void) drv;
1650
1651 switch (target) {
1652 case EGL_GL_TEXTURE_2D_KHR:
1653 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1654 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1655 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1656 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1657 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1658 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1659 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
1660 case EGL_GL_RENDERBUFFER_KHR:
1661 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1662 #ifdef HAVE_DRM_PLATFORM
1663 case EGL_DRM_BUFFER_MESA:
1664 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1665 #endif
1666 #ifdef HAVE_WAYLAND_PLATFORM
1667 case EGL_WAYLAND_BUFFER_WL:
1668 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1669 #endif
1670 #ifdef HAVE_DRM_PLATFORM
1671 case EGL_LINUX_DMA_BUF_EXT:
1672 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
1673 #endif
1674 default:
1675 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1676 return EGL_NO_IMAGE_KHR;
1677 }
1678 }
1679
1680 static EGLBoolean
1681 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1682 {
1683 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1684 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1685
1686 (void) drv;
1687
1688 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1689 free(dri2_img);
1690
1691 return EGL_TRUE;
1692 }
1693
1694 #ifdef HAVE_DRM_PLATFORM
1695 static _EGLImage *
1696 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1697 const EGLint *attr_list)
1698 {
1699 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1700 struct dri2_egl_image *dri2_img;
1701 _EGLImageAttribs attrs;
1702 unsigned int dri_use, valid_mask;
1703 int format;
1704 EGLint err = EGL_SUCCESS;
1705
1706 (void) drv;
1707
1708 dri2_img = malloc(sizeof *dri2_img);
1709 if (!dri2_img) {
1710 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1711 return EGL_NO_IMAGE_KHR;
1712 }
1713
1714 if (!attr_list) {
1715 err = EGL_BAD_PARAMETER;
1716 goto cleanup_img;
1717 }
1718
1719 if (!_eglInitImage(&dri2_img->base, disp)) {
1720 err = EGL_BAD_PARAMETER;
1721 goto cleanup_img;
1722 }
1723
1724 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1725 if (err != EGL_SUCCESS)
1726 goto cleanup_img;
1727
1728 if (attrs.Width <= 0 || attrs.Height <= 0) {
1729 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1730 attrs.Width, attrs.Height);
1731 goto cleanup_img;
1732 }
1733
1734 switch (attrs.DRMBufferFormatMESA) {
1735 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1736 format = __DRI_IMAGE_FORMAT_ARGB8888;
1737 break;
1738 default:
1739 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1740 attrs.DRMBufferFormatMESA);
1741 goto cleanup_img;
1742 }
1743
1744 valid_mask =
1745 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1746 EGL_DRM_BUFFER_USE_SHARE_MESA |
1747 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1748 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1749 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1750 attrs.DRMBufferUseMESA & ~valid_mask);
1751 goto cleanup_img;
1752 }
1753
1754 dri_use = 0;
1755 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1756 dri_use |= __DRI_IMAGE_USE_SHARE;
1757 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1758 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1759 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1760 dri_use |= __DRI_IMAGE_USE_CURSOR;
1761
1762 dri2_img->dri_image =
1763 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1764 attrs.Width, attrs.Height,
1765 format, dri_use, dri2_img);
1766 if (dri2_img->dri_image == NULL) {
1767 err = EGL_BAD_ALLOC;
1768 goto cleanup_img;
1769 }
1770
1771 return &dri2_img->base;
1772
1773 cleanup_img:
1774 free(dri2_img);
1775 _eglError(err, "dri2_create_drm_image_mesa");
1776
1777 return EGL_NO_IMAGE_KHR;
1778 }
1779
1780 static EGLBoolean
1781 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1782 EGLint *name, EGLint *handle, EGLint *stride)
1783 {
1784 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1785 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1786
1787 (void) drv;
1788
1789 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1790 __DRI_IMAGE_ATTRIB_NAME, name)) {
1791 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1792 return EGL_FALSE;
1793 }
1794
1795 if (handle)
1796 dri2_dpy->image->queryImage(dri2_img->dri_image,
1797 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1798
1799 if (stride)
1800 dri2_dpy->image->queryImage(dri2_img->dri_image,
1801 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1802
1803 return EGL_TRUE;
1804 }
1805 #endif
1806
1807 #ifdef HAVE_WAYLAND_PLATFORM
1808
1809 static void
1810 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
1811 struct wl_drm_buffer *buffer)
1812 {
1813 _EGLDisplay *disp = user_data;
1814 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1815 __DRIimage *img;
1816 int i, dri_components = 0;
1817
1818 if (fd == -1)
1819 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
1820 buffer->width,
1821 buffer->height,
1822 buffer->format,
1823 (int*)&name, 1,
1824 buffer->stride,
1825 buffer->offset,
1826 NULL);
1827 else
1828 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
1829 buffer->width,
1830 buffer->height,
1831 buffer->format,
1832 &fd, 1,
1833 buffer->stride,
1834 buffer->offset,
1835 NULL);
1836
1837 if (img == NULL)
1838 return;
1839
1840 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
1841
1842 buffer->driver_format = NULL;
1843 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
1844 if (wl_drm_components[i].dri_components == dri_components)
1845 buffer->driver_format = &wl_drm_components[i];
1846
1847 if (buffer->driver_format == NULL)
1848 dri2_dpy->image->destroyImage(img);
1849 else
1850 buffer->driver_buffer = img;
1851 }
1852
1853 static void
1854 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1855 {
1856 _EGLDisplay *disp = user_data;
1857 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1858
1859 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1860 }
1861
1862 static struct wayland_drm_callbacks wl_drm_callbacks = {
1863 .authenticate = NULL,
1864 .reference_buffer = dri2_wl_reference_buffer,
1865 .release_buffer = dri2_wl_release_buffer
1866 };
1867
1868 static EGLBoolean
1869 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1870 struct wl_display *wl_dpy)
1871 {
1872 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1873 int ret, flags = 0;
1874 uint64_t cap;
1875
1876 (void) drv;
1877
1878 if (dri2_dpy->wl_server_drm)
1879 return EGL_FALSE;
1880
1881 wl_drm_callbacks.authenticate =
1882 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1883
1884 ret = drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap);
1885 if (ret == 0 && cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
1886 dri2_dpy->image->base.version >= 7 &&
1887 dri2_dpy->image->createImageFromFds != NULL)
1888 flags |= WAYLAND_DRM_PRIME;
1889
1890 dri2_dpy->wl_server_drm =
1891 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1892 &wl_drm_callbacks, disp, flags);
1893
1894 if (!dri2_dpy->wl_server_drm)
1895 return EGL_FALSE;
1896
1897 /* We have to share the wl_drm instance with gbm, so gbm can convert
1898 * wl_buffers to gbm bos. */
1899 if (dri2_dpy->gbm_dri)
1900 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
1901
1902 return EGL_TRUE;
1903 }
1904
1905 static EGLBoolean
1906 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1907 struct wl_display *wl_dpy)
1908 {
1909 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1910
1911 (void) drv;
1912
1913 if (!dri2_dpy->wl_server_drm)
1914 return EGL_FALSE;
1915
1916 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1917 dri2_dpy->wl_server_drm = NULL;
1918
1919 return EGL_TRUE;
1920 }
1921
1922 static EGLBoolean
1923 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1924 struct wl_resource *buffer_resource,
1925 EGLint attribute, EGLint *value)
1926 {
1927 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1928 struct wl_drm_buffer *buffer;
1929 const struct wl_drm_components_descriptor *format;
1930
1931 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
1932 if (!buffer)
1933 return EGL_FALSE;
1934
1935 format = buffer->driver_format;
1936 switch (attribute) {
1937 case EGL_TEXTURE_FORMAT:
1938 *value = format->components;
1939 return EGL_TRUE;
1940 case EGL_WIDTH:
1941 *value = buffer->width;
1942 return EGL_TRUE;
1943 case EGL_HEIGHT:
1944 *value = buffer->height;
1945 return EGL_TRUE;
1946 }
1947
1948 return EGL_FALSE;
1949 }
1950 #endif
1951
1952 static void
1953 dri2_unload(_EGLDriver *drv)
1954 {
1955 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1956
1957 if (dri2_drv->handle)
1958 dlclose(dri2_drv->handle);
1959 free(dri2_drv);
1960 }
1961
1962 static EGLBoolean
1963 dri2_load(_EGLDriver *drv)
1964 {
1965 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1966 #ifdef HAVE_SHARED_GLAPI
1967 #ifdef HAVE_ANDROID_PLATFORM
1968 const char *libname = "libglapi.so";
1969 #else
1970 const char *libname = "libglapi.so.0";
1971 #endif
1972 #else
1973 /*
1974 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1975 * tell which one to load.
1976 */
1977 const char *libname = NULL;
1978 #endif
1979 void *handle;
1980
1981 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1982 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1983 if (handle) {
1984 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1985 dlsym(handle, "_glapi_get_proc_address");
1986 if (!dri2_drv->get_proc_address || !libname) {
1987 /* no need to keep a reference */
1988 dlclose(handle);
1989 handle = NULL;
1990 }
1991 }
1992
1993 /* if glapi is not available, loading DRI drivers will fail */
1994 if (!dri2_drv->get_proc_address) {
1995 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1996 return EGL_FALSE;
1997 }
1998
1999 dri2_drv->glFlush = (void (*)(void))
2000 dri2_drv->get_proc_address("glFlush");
2001
2002 dri2_drv->handle = handle;
2003
2004 return EGL_TRUE;
2005 }
2006
2007 /**
2008 * This is the main entrypoint into the driver, called by libEGL.
2009 * Create a new _EGLDriver object and init its dispatch table.
2010 */
2011 _EGLDriver *
2012 _eglBuiltInDriverDRI2(const char *args)
2013 {
2014 struct dri2_egl_driver *dri2_drv;
2015
2016 (void) args;
2017
2018 dri2_drv = calloc(1, sizeof *dri2_drv);
2019 if (!dri2_drv)
2020 return NULL;
2021
2022 if (!dri2_load(&dri2_drv->base)) {
2023 free(dri2_drv);
2024 return NULL;
2025 }
2026
2027 _eglInitDriverFallbacks(&dri2_drv->base);
2028 dri2_drv->base.API.Initialize = dri2_initialize;
2029 dri2_drv->base.API.Terminate = dri2_terminate;
2030 dri2_drv->base.API.CreateContext = dri2_create_context;
2031 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2032 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2033 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2034 dri2_drv->base.API.WaitClient = dri2_wait_client;
2035 dri2_drv->base.API.WaitNative = dri2_wait_native;
2036 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2037 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2038 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
2039 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2040 #ifdef HAVE_DRM_PLATFORM
2041 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2042 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2043 #endif
2044 #ifdef HAVE_WAYLAND_PLATFORM
2045 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2046 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2047 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2048 #endif
2049
2050 dri2_drv->base.Name = "DRI2";
2051 dri2_drv->base.Unload = dri2_unload;
2052
2053 return &dri2_drv->base;
2054 }