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[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdint.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <stdio.h>
34 #include <limits.h>
35 #include <dlfcn.h>
36 #include <fcntl.h>
37 #include <errno.h>
38 #include <unistd.h>
39 #ifdef HAVE_LIBDRM
40 #include <xf86drm.h>
41 #include <drm_fourcc.h>
42 #endif
43 #include <GL/gl.h>
44 #include <GL/internal/dri_interface.h>
45 #include <sys/types.h>
46 #include <sys/stat.h>
47
48 #ifdef HAVE_WAYLAND_PLATFORM
49 #include "wayland-drm.h"
50 #include "wayland-drm-client-protocol.h"
51 #endif
52
53 #include "egl_dri2.h"
54 #include "../util/u_atomic.h"
55
56 const __DRIuseInvalidateExtension use_invalidate = {
57 .base = { __DRI_USE_INVALIDATE, 1 }
58 };
59
60 EGLint dri2_to_egl_attribute_map[] = {
61 0,
62 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
63 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
64 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
65 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
66 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
67 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
68 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
69 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
70 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
71 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
72 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
73 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
74 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
75 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
76 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
77 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
78 0, /* __DRI_ATTRIB_RENDER_TYPE, */
79 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
80 0, /* __DRI_ATTRIB_CONFORMANT */
81 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
82 0, /* __DRI_ATTRIB_STEREO */
83 0, /* __DRI_ATTRIB_AUX_BUFFERS */
84 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
85 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
86 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
87 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
88 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
89 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
90 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
91 0, /* __DRI_ATTRIB_RED_MASK */
92 0, /* __DRI_ATTRIB_GREEN_MASK */
93 0, /* __DRI_ATTRIB_BLUE_MASK */
94 0, /* __DRI_ATTRIB_ALPHA_MASK */
95 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
96 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
97 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
98 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
99 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
100 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
101 0, /* __DRI_ATTRIB_SWAP_METHOD */
102 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
103 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
104 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
105 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
106 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
107 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
108 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
109 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
110 };
111
112 static EGLBoolean
113 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
114 {
115 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
116 return EGL_FALSE;
117
118 if (!_eglMatchConfig(conf, criteria))
119 return EGL_FALSE;
120
121 return EGL_TRUE;
122 }
123
124 struct dri2_egl_config *
125 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
126 EGLint surface_type, const EGLint *attr_list,
127 const unsigned int *rgba_masks)
128 {
129 struct dri2_egl_config *conf;
130 struct dri2_egl_display *dri2_dpy;
131 _EGLConfig base;
132 unsigned int attrib, value, double_buffer;
133 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
134 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
135 _EGLConfig *matching_config;
136 EGLint num_configs = 0;
137 EGLint config_id;
138 int i;
139
140 dri2_dpy = disp->DriverData;
141 _eglInitConfig(&base, disp, id);
142
143 i = 0;
144 double_buffer = 0;
145 bind_to_texture_rgb = 0;
146 bind_to_texture_rgba = 0;
147
148 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
149 switch (attrib) {
150 case __DRI_ATTRIB_RENDER_TYPE:
151 if (value & __DRI_ATTRIB_RGBA_BIT)
152 value = EGL_RGB_BUFFER;
153 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
154 value = EGL_LUMINANCE_BUFFER;
155 else
156 return NULL;
157 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
158 break;
159
160 case __DRI_ATTRIB_CONFIG_CAVEAT:
161 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
162 value = EGL_NON_CONFORMANT_CONFIG;
163 else if (value & __DRI_ATTRIB_SLOW_BIT)
164 value = EGL_SLOW_CONFIG;
165 else
166 value = EGL_NONE;
167 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
168 break;
169
170 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
171 bind_to_texture_rgb = value;
172 break;
173
174 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
175 bind_to_texture_rgba = value;
176 break;
177
178 case __DRI_ATTRIB_DOUBLE_BUFFER:
179 double_buffer = value;
180 break;
181
182 case __DRI_ATTRIB_RED_MASK:
183 dri_masks[0] = value;
184 break;
185
186 case __DRI_ATTRIB_GREEN_MASK:
187 dri_masks[1] = value;
188 break;
189
190 case __DRI_ATTRIB_BLUE_MASK:
191 dri_masks[2] = value;
192 break;
193
194 case __DRI_ATTRIB_ALPHA_MASK:
195 dri_masks[3] = value;
196 break;
197
198 case __DRI_ATTRIB_ACCUM_RED_SIZE:
199 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
200 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
201 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
202 /* Don't expose visuals with the accumulation buffer. */
203 if (value > 0)
204 return NULL;
205 break;
206
207 default:
208 key = dri2_to_egl_attribute_map[attrib];
209 if (key != 0)
210 _eglSetConfigKey(&base, key, value);
211 break;
212 }
213 }
214
215 if (attr_list)
216 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
217 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
218
219 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
220 return NULL;
221
222 base.NativeRenderable = EGL_TRUE;
223
224 base.SurfaceType = surface_type;
225 if (surface_type & (EGL_PBUFFER_BIT |
226 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
227 base.BindToTextureRGB = bind_to_texture_rgb;
228 if (base.AlphaSize > 0)
229 base.BindToTextureRGBA = bind_to_texture_rgba;
230 }
231
232 base.RenderableType = disp->ClientAPIs;
233 base.Conformant = disp->ClientAPIs;
234
235 base.MinSwapInterval = dri2_dpy->min_swap_interval;
236 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
237
238 if (!_eglValidateConfig(&base, EGL_FALSE)) {
239 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
240 return NULL;
241 }
242
243 config_id = base.ConfigID;
244 base.ConfigID = EGL_DONT_CARE;
245 base.SurfaceType = EGL_DONT_CARE;
246 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
247 (_EGLArrayForEach) dri2_match_config, &base);
248
249 if (num_configs == 1) {
250 conf = (struct dri2_egl_config *) matching_config;
251
252 if (double_buffer && !conf->dri_double_config)
253 conf->dri_double_config = dri_config;
254 else if (!double_buffer && !conf->dri_single_config)
255 conf->dri_single_config = dri_config;
256 else
257 /* a similar config type is already added (unlikely) => discard */
258 return NULL;
259 }
260 else if (num_configs == 0) {
261 conf = malloc(sizeof *conf);
262 if (conf == NULL)
263 return NULL;
264
265 memcpy(&conf->base, &base, sizeof base);
266 if (double_buffer) {
267 conf->dri_double_config = dri_config;
268 conf->dri_single_config = NULL;
269 } else {
270 conf->dri_single_config = dri_config;
271 conf->dri_double_config = NULL;
272 }
273 conf->base.SurfaceType = 0;
274 conf->base.ConfigID = config_id;
275
276 _eglLinkConfig(&conf->base);
277 }
278 else {
279 assert(0);
280 return NULL;
281 }
282
283 if (double_buffer) {
284 surface_type &= ~EGL_PIXMAP_BIT;
285 }
286
287 conf->base.SurfaceType |= surface_type;
288
289 return conf;
290 }
291
292 __DRIimage *
293 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
294 {
295 _EGLDisplay *disp = data;
296 struct dri2_egl_image *dri2_img;
297 _EGLImage *img;
298
299 (void) screen;
300
301 img = _eglLookupImage(image, disp);
302 if (img == NULL) {
303 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
304 return NULL;
305 }
306
307 dri2_img = dri2_egl_image(image);
308
309 return dri2_img->dri_image;
310 }
311
312 const __DRIimageLookupExtension image_lookup_extension = {
313 .base = { __DRI_IMAGE_LOOKUP, 1 },
314
315 .lookupEGLImage = dri2_lookup_egl_image
316 };
317
318 struct dri2_extension_match {
319 const char *name;
320 int version;
321 int offset;
322 };
323
324 static struct dri2_extension_match dri2_driver_extensions[] = {
325 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
326 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
327 { NULL, 0, 0 }
328 };
329
330 static struct dri2_extension_match dri2_core_extensions[] = {
331 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
332 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
333 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
334 { NULL, 0, 0 }
335 };
336
337 static struct dri2_extension_match swrast_driver_extensions[] = {
338 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
339 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
340 { NULL, 0, 0 }
341 };
342
343 static struct dri2_extension_match swrast_core_extensions[] = {
344 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
345 { NULL, 0, 0 }
346 };
347
348 static EGLBoolean
349 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
350 struct dri2_extension_match *matches,
351 const __DRIextension **extensions)
352 {
353 int i, j, ret = EGL_TRUE;
354 void *field;
355
356 for (i = 0; extensions[i]; i++) {
357 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
358 for (j = 0; matches[j].name; j++) {
359 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
360 extensions[i]->version >= matches[j].version) {
361 field = ((char *) dri2_dpy + matches[j].offset);
362 *(const __DRIextension **) field = extensions[i];
363 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
364 extensions[i]->name, extensions[i]->version);
365 }
366 }
367 }
368
369 for (j = 0; matches[j].name; j++) {
370 field = ((char *) dri2_dpy + matches[j].offset);
371 if (*(const __DRIextension **) field == NULL) {
372 _eglLog(_EGL_WARNING, "DRI2: did not find extension %s version %d",
373 matches[j].name, matches[j].version);
374 ret = EGL_FALSE;
375 }
376 }
377
378 return ret;
379 }
380
381 static const __DRIextension **
382 dri2_open_driver(_EGLDisplay *disp)
383 {
384 struct dri2_egl_display *dri2_dpy = disp->DriverData;
385 const __DRIextension **extensions = NULL;
386 char path[PATH_MAX], *search_paths, *p, *next, *end;
387 char *get_extensions_name;
388 const __DRIextension **(*get_extensions)(void);
389
390 search_paths = NULL;
391 if (geteuid() == getuid()) {
392 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
393 search_paths = getenv("LIBGL_DRIVERS_PATH");
394 }
395 if (search_paths == NULL)
396 search_paths = DEFAULT_DRIVER_DIR;
397
398 dri2_dpy->driver = NULL;
399 end = search_paths + strlen(search_paths);
400 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
401 int len;
402 next = strchr(p, ':');
403 if (next == NULL)
404 next = end;
405
406 len = next - p;
407 #if GLX_USE_TLS
408 snprintf(path, sizeof path,
409 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
410 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
411 #endif
412 if (dri2_dpy->driver == NULL) {
413 snprintf(path, sizeof path,
414 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
415 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
416 if (dri2_dpy->driver == NULL)
417 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
418 }
419 /* not need continue to loop all paths once the driver is found */
420 if (dri2_dpy->driver != NULL)
421 break;
422 }
423
424 if (dri2_dpy->driver == NULL) {
425 _eglLog(_EGL_WARNING,
426 "DRI2: failed to open %s (search paths %s)",
427 dri2_dpy->driver_name, search_paths);
428 return NULL;
429 }
430
431 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
432
433 if (asprintf(&get_extensions_name, "%s_%s",
434 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
435 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
436 if (get_extensions) {
437 extensions = get_extensions();
438 } else {
439 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
440 get_extensions_name, dlerror());
441 }
442 free(get_extensions_name);
443 }
444
445 if (!extensions)
446 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
447 if (extensions == NULL) {
448 _eglLog(_EGL_WARNING,
449 "DRI2: driver exports no extensions (%s)", dlerror());
450 dlclose(dri2_dpy->driver);
451 }
452
453 return extensions;
454 }
455
456 EGLBoolean
457 dri2_load_driver(_EGLDisplay *disp)
458 {
459 struct dri2_egl_display *dri2_dpy = disp->DriverData;
460 const __DRIextension **extensions;
461
462 extensions = dri2_open_driver(disp);
463 if (!extensions)
464 return EGL_FALSE;
465
466 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
467 dlclose(dri2_dpy->driver);
468 return EGL_FALSE;
469 }
470 dri2_dpy->driver_extensions = extensions;
471
472 return EGL_TRUE;
473 }
474
475 EGLBoolean
476 dri2_load_driver_swrast(_EGLDisplay *disp)
477 {
478 struct dri2_egl_display *dri2_dpy = disp->DriverData;
479 const __DRIextension **extensions;
480
481 extensions = dri2_open_driver(disp);
482 if (!extensions)
483 return EGL_FALSE;
484
485 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
486 dlclose(dri2_dpy->driver);
487 return EGL_FALSE;
488 }
489 dri2_dpy->driver_extensions = extensions;
490
491 return EGL_TRUE;
492 }
493
494 void
495 dri2_setup_screen(_EGLDisplay *disp)
496 {
497 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
498 unsigned int api_mask;
499
500 if (dri2_dpy->dri2) {
501 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
502 } else {
503 assert(dri2_dpy->swrast);
504 api_mask = 1 << __DRI_API_OPENGL |
505 1 << __DRI_API_GLES |
506 1 << __DRI_API_GLES2 |
507 1 << __DRI_API_GLES3;
508 }
509
510 disp->ClientAPIs = 0;
511 if (api_mask & (1 <<__DRI_API_OPENGL))
512 disp->ClientAPIs |= EGL_OPENGL_BIT;
513 if (api_mask & (1 <<__DRI_API_GLES))
514 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
515 if (api_mask & (1 << __DRI_API_GLES2))
516 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
517 if (api_mask & (1 << __DRI_API_GLES3))
518 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
519
520 assert(dri2_dpy->dri2 || dri2_dpy->swrast);
521 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
522 disp->Extensions.MESA_configless_context = EGL_TRUE;
523
524 if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
525 disp->Extensions.KHR_create_context = EGL_TRUE;
526
527 if (dri2_dpy->robustness)
528 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
529 }
530
531 if (dri2_dpy->fence) {
532 disp->Extensions.KHR_fence_sync = EGL_TRUE;
533 disp->Extensions.KHR_wait_sync = EGL_TRUE;
534 if (dri2_dpy->fence->get_fence_from_cl_event)
535 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
536 }
537
538 if (dri2_dpy->image) {
539 if (dri2_dpy->image->base.version >= 10 &&
540 dri2_dpy->image->getCapabilities != NULL) {
541 int capabilities;
542
543 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
544 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
545
546 if (dri2_dpy->image->base.version >= 11)
547 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
548 } else {
549 disp->Extensions.MESA_drm_image = EGL_TRUE;
550 if (dri2_dpy->image->base.version >= 11)
551 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
552 }
553
554 disp->Extensions.KHR_image_base = EGL_TRUE;
555 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
556 if (dri2_dpy->image->base.version >= 5 &&
557 dri2_dpy->image->createImageFromTexture) {
558 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
559 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
560 }
561 #ifdef HAVE_LIBDRM
562 if (dri2_dpy->image->base.version >= 8 &&
563 dri2_dpy->image->createImageFromDmaBufs) {
564 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
565 }
566 #endif
567 }
568 }
569
570 /* All platforms but DRM call this function to create the screen, query the
571 * dri extensions, setup the vtables and populate the driver_configs.
572 * DRM inherits all that information from its display - GBM.
573 */
574 EGLBoolean
575 dri2_create_screen(_EGLDisplay *disp)
576 {
577 const __DRIextension **extensions;
578 struct dri2_egl_display *dri2_dpy;
579 unsigned i;
580
581 dri2_dpy = disp->DriverData;
582
583 if (dri2_dpy->dri2) {
584 if (dri2_dpy->dri2->base.version >= 4) {
585 dri2_dpy->dri_screen =
586 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
587 dri2_dpy->extensions,
588 dri2_dpy->driver_extensions,
589 &dri2_dpy->driver_configs, disp);
590 } else {
591 dri2_dpy->dri_screen =
592 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
593 dri2_dpy->extensions,
594 &dri2_dpy->driver_configs, disp);
595 }
596 } else {
597 assert(dri2_dpy->swrast);
598 if (dri2_dpy->swrast->base.version >= 4) {
599 dri2_dpy->dri_screen =
600 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
601 dri2_dpy->driver_extensions,
602 &dri2_dpy->driver_configs, disp);
603 } else {
604 dri2_dpy->dri_screen =
605 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
606 &dri2_dpy->driver_configs, disp);
607 }
608 }
609
610 if (dri2_dpy->dri_screen == NULL) {
611 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
612 return EGL_FALSE;
613 }
614
615 dri2_dpy->own_dri_screen = 1;
616
617 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
618
619 if (dri2_dpy->dri2) {
620 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
621 goto cleanup_dri_screen;
622 } else {
623 assert(dri2_dpy->swrast);
624 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
625 goto cleanup_dri_screen;
626 }
627
628 for (i = 0; extensions[i]; i++) {
629 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
630 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
631 }
632 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
633 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
634 }
635 if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
636 dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
637 }
638 }
639
640 dri2_setup_screen(disp);
641
642 return EGL_TRUE;
643
644 cleanup_dri_screen:
645 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
646
647 return EGL_FALSE;
648 }
649
650 /**
651 * Called via eglInitialize(), GLX_drv->API.Initialize().
652 */
653 static EGLBoolean
654 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
655 {
656 /* not until swrast_dri is supported */
657 if (disp->Options.UseFallback)
658 return EGL_FALSE;
659
660 switch (disp->Platform) {
661 #ifdef HAVE_X11_PLATFORM
662 case _EGL_PLATFORM_X11:
663 if (disp->Options.TestOnly)
664 return EGL_TRUE;
665 return dri2_initialize_x11(drv, disp);
666 #endif
667
668 #ifdef HAVE_DRM_PLATFORM
669 case _EGL_PLATFORM_DRM:
670 if (disp->Options.TestOnly)
671 return EGL_TRUE;
672 return dri2_initialize_drm(drv, disp);
673 #endif
674 #ifdef HAVE_WAYLAND_PLATFORM
675 case _EGL_PLATFORM_WAYLAND:
676 if (disp->Options.TestOnly)
677 return EGL_TRUE;
678 return dri2_initialize_wayland(drv, disp);
679 #endif
680 #ifdef HAVE_ANDROID_PLATFORM
681 case _EGL_PLATFORM_ANDROID:
682 if (disp->Options.TestOnly)
683 return EGL_TRUE;
684 return dri2_initialize_android(drv, disp);
685 #endif
686
687 default:
688 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
689 return EGL_FALSE;
690 }
691 }
692
693 /**
694 * Called via eglTerminate(), drv->API.Terminate().
695 */
696 static EGLBoolean
697 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
698 {
699 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
700 unsigned i;
701
702 _eglReleaseDisplayResources(drv, disp);
703 _eglCleanupDisplay(disp);
704
705 if (dri2_dpy->own_dri_screen)
706 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
707 if (dri2_dpy->fd)
708 close(dri2_dpy->fd);
709 if (dri2_dpy->driver)
710 dlclose(dri2_dpy->driver);
711 free(dri2_dpy->device_name);
712 free(dri2_dpy->driver_name);
713
714 switch (disp->Platform) {
715 #ifdef HAVE_X11_PLATFORM
716 case _EGL_PLATFORM_X11:
717 if (dri2_dpy->own_device) {
718 xcb_disconnect(dri2_dpy->conn);
719 }
720 break;
721 #endif
722 #ifdef HAVE_DRM_PLATFORM
723 case _EGL_PLATFORM_DRM:
724 if (dri2_dpy->own_device) {
725 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
726 }
727 break;
728 #endif
729 #ifdef HAVE_WAYLAND_PLATFORM
730 case _EGL_PLATFORM_WAYLAND:
731 if (dri2_dpy->wl_drm)
732 wl_drm_destroy(dri2_dpy->wl_drm);
733 if (dri2_dpy->wl_shm)
734 wl_shm_destroy(dri2_dpy->wl_shm);
735 wl_registry_destroy(dri2_dpy->wl_registry);
736 wl_event_queue_destroy(dri2_dpy->wl_queue);
737 if (dri2_dpy->own_device) {
738 wl_display_disconnect(dri2_dpy->wl_dpy);
739 }
740 break;
741 #endif
742 default:
743 break;
744 }
745
746 /* The drm platform does not create the screen/driver_configs but reuses
747 * the ones from the gbm device. As such the gbm itself is responsible
748 * for the cleanup.
749 */
750 if (disp->Platform != _EGL_PLATFORM_DRM) {
751 for (i = 0; dri2_dpy->driver_configs[i]; i++)
752 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
753 free(dri2_dpy->driver_configs);
754 }
755 free(dri2_dpy);
756 disp->DriverData = NULL;
757
758 return EGL_TRUE;
759 }
760
761 /**
762 * Set the error code after a call to
763 * dri2_egl_display::dri2::createContextAttribs.
764 */
765 static void
766 dri2_create_context_attribs_error(int dri_error)
767 {
768 EGLint egl_error;
769
770 switch (dri_error) {
771 case __DRI_CTX_ERROR_SUCCESS:
772 return;
773
774 case __DRI_CTX_ERROR_NO_MEMORY:
775 egl_error = EGL_BAD_ALLOC;
776 break;
777
778 /* From the EGL_KHR_create_context spec, section "Errors":
779 *
780 * * If <config> does not support a client API context compatible
781 * with the requested API major and minor version, [...] context flags,
782 * and context reset notification behavior (for client API types where
783 * these attributes are supported), then an EGL_BAD_MATCH error is
784 * generated.
785 *
786 * * If an OpenGL ES context is requested and the values for
787 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
788 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
789 * is not defined, than an EGL_BAD_MATCH error is generated.
790 *
791 * * If an OpenGL context is requested, the requested version is
792 * greater than 3.2, and the value for attribute
793 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
794 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
795 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
796 * one of these bits set; or if the implementation does not support
797 * the requested profile, then an EGL_BAD_MATCH error is generated.
798 */
799 case __DRI_CTX_ERROR_BAD_API:
800 case __DRI_CTX_ERROR_BAD_VERSION:
801 case __DRI_CTX_ERROR_BAD_FLAG:
802 egl_error = EGL_BAD_MATCH;
803 break;
804
805 /* From the EGL_KHR_create_context spec, section "Errors":
806 *
807 * * If an attribute name or attribute value in <attrib_list> is not
808 * recognized (including unrecognized bits in bitmask attributes),
809 * then an EGL_BAD_ATTRIBUTE error is generated."
810 */
811 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
812 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
813 egl_error = EGL_BAD_ATTRIBUTE;
814 break;
815
816 default:
817 assert(0);
818 egl_error = EGL_BAD_MATCH;
819 break;
820 }
821
822 _eglError(egl_error, "dri2_create_context");
823 }
824
825 /**
826 * Called via eglCreateContext(), drv->API.CreateContext().
827 */
828 static _EGLContext *
829 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
830 _EGLContext *share_list, const EGLint *attrib_list)
831 {
832 struct dri2_egl_context *dri2_ctx;
833 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
834 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
835 __DRIcontext *shared =
836 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
837 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
838 const __DRIconfig *dri_config;
839 int api;
840
841 (void) drv;
842
843 dri2_ctx = malloc(sizeof *dri2_ctx);
844 if (!dri2_ctx) {
845 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
846 return NULL;
847 }
848
849 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
850 goto cleanup;
851
852 switch (dri2_ctx->base.ClientAPI) {
853 case EGL_OPENGL_ES_API:
854 switch (dri2_ctx->base.ClientMajorVersion) {
855 case 1:
856 api = __DRI_API_GLES;
857 break;
858 case 2:
859 api = __DRI_API_GLES2;
860 break;
861 case 3:
862 api = __DRI_API_GLES3;
863 break;
864 default:
865 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
866 free(dri2_ctx);
867 return NULL;
868 }
869 break;
870 case EGL_OPENGL_API:
871 if ((dri2_ctx->base.ClientMajorVersion >= 4
872 || (dri2_ctx->base.ClientMajorVersion == 3
873 && dri2_ctx->base.ClientMinorVersion >= 2))
874 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
875 api = __DRI_API_OPENGL_CORE;
876 else
877 api = __DRI_API_OPENGL;
878 break;
879 default:
880 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
881 free(dri2_ctx);
882 return NULL;
883 }
884
885 if (conf != NULL) {
886 /* The config chosen here isn't necessarily
887 * used for surfaces later.
888 * A pixmap surface will use the single config.
889 * This opportunity depends on disabling the
890 * doubleBufferMode check in
891 * src/mesa/main/context.c:check_compatible()
892 */
893 if (dri2_config->dri_double_config)
894 dri_config = dri2_config->dri_double_config;
895 else
896 dri_config = dri2_config->dri_single_config;
897
898 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
899 * makes sure the back buffer will always be used.
900 */
901 if (conf->SurfaceType & EGL_WINDOW_BIT)
902 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
903 }
904 else
905 dri_config = NULL;
906
907 if (dri2_dpy->dri2) {
908 if (dri2_dpy->dri2->base.version >= 3) {
909 unsigned error;
910 unsigned num_attribs = 0;
911 uint32_t ctx_attribs[8];
912
913 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
914 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMajorVersion;
915 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
916 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMinorVersion;
917
918 if (dri2_ctx->base.Flags != 0) {
919 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
920 * extension, don't even try to send it the robust-access flag.
921 * It may explode. Instead, generate the required EGL error here.
922 */
923 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
924 && !dri2_dpy->robustness) {
925 _eglError(EGL_BAD_MATCH, "eglCreateContext");
926 goto cleanup;
927 }
928
929 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
930 ctx_attribs[num_attribs++] = dri2_ctx->base.Flags;
931 }
932
933 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
934 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
935 * extension, don't even try to send it a reset strategy. It may
936 * explode. Instead, generate the required EGL error here.
937 */
938 if (!dri2_dpy->robustness) {
939 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
940 goto cleanup;
941 }
942
943 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
944 ctx_attribs[num_attribs++] = __DRI_CTX_RESET_LOSE_CONTEXT;
945 }
946
947 assert(num_attribs <= ARRAY_SIZE(ctx_attribs));
948
949 dri2_ctx->dri_context =
950 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
951 api,
952 dri_config,
953 shared,
954 num_attribs / 2,
955 ctx_attribs,
956 & error,
957 dri2_ctx);
958 dri2_create_context_attribs_error(error);
959 } else {
960 dri2_ctx->dri_context =
961 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
962 api,
963 dri_config,
964 shared,
965 dri2_ctx);
966 }
967 } else {
968 assert(dri2_dpy->swrast);
969 dri2_ctx->dri_context =
970 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
971 api,
972 dri_config,
973 shared,
974 dri2_ctx);
975 }
976
977 if (!dri2_ctx->dri_context)
978 goto cleanup;
979
980 return &dri2_ctx->base;
981
982 cleanup:
983 free(dri2_ctx);
984 return NULL;
985 }
986
987 /**
988 * Called via eglDestroyContext(), drv->API.DestroyContext().
989 */
990 static EGLBoolean
991 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
992 {
993 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
994 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
995
996 if (_eglPutContext(ctx)) {
997 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
998 free(dri2_ctx);
999 }
1000
1001 return EGL_TRUE;
1002 }
1003
1004 /**
1005 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1006 */
1007 static EGLBoolean
1008 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1009 _EGLSurface *rsurf, _EGLContext *ctx)
1010 {
1011 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1012 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1013 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
1014 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
1015 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1016 _EGLContext *old_ctx;
1017 _EGLSurface *old_dsurf, *old_rsurf;
1018 __DRIdrawable *ddraw, *rdraw;
1019 __DRIcontext *cctx;
1020
1021 /* make new bindings */
1022 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1023 return EGL_FALSE;
1024
1025 /* flush before context switch */
1026 if (old_ctx && dri2_drv->glFlush)
1027 dri2_drv->glFlush();
1028
1029 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
1030 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
1031 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1032
1033 if (old_ctx) {
1034 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1035 dri2_dpy->core->unbindContext(old_cctx);
1036 }
1037
1038 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
1039 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1040 if (old_dsurf)
1041 drv->API.DestroySurface(drv, disp, old_dsurf);
1042 if (old_rsurf)
1043 drv->API.DestroySurface(drv, disp, old_rsurf);
1044 if (old_ctx)
1045 drv->API.DestroyContext(drv, disp, old_ctx);
1046
1047 return EGL_TRUE;
1048 } else {
1049 /* undo the previous _eglBindContext */
1050 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
1051 assert(&dri2_ctx->base == ctx &&
1052 &dri2_dsurf->base == dsurf &&
1053 &dri2_rsurf->base == rsurf);
1054
1055 _eglPutSurface(dsurf);
1056 _eglPutSurface(rsurf);
1057 _eglPutContext(ctx);
1058
1059 _eglPutSurface(old_dsurf);
1060 _eglPutSurface(old_rsurf);
1061 _eglPutContext(old_ctx);
1062
1063 return EGL_FALSE;
1064 }
1065 }
1066
1067 /*
1068 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1069 */
1070 static _EGLProc
1071 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1072 {
1073 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1074
1075 return dri2_drv->get_proc_address(procname);
1076 }
1077
1078 static _EGLSurface*
1079 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1080 _EGLConfig *conf, void *native_window,
1081 const EGLint *attrib_list)
1082 {
1083 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1084 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1085 attrib_list);
1086 }
1087
1088 static _EGLSurface*
1089 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1090 _EGLConfig *conf, void *native_pixmap,
1091 const EGLint *attrib_list)
1092 {
1093 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1094 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1095 attrib_list);
1096 }
1097
1098 static _EGLSurface*
1099 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1100 _EGLConfig *conf, const EGLint *attrib_list)
1101 {
1102 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1103 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1104 }
1105
1106 static EGLBoolean
1107 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1108 {
1109 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1110 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1111 }
1112
1113 static EGLBoolean
1114 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1115 EGLint interval)
1116 {
1117 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1118 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1119 }
1120
1121 /**
1122 * Asks the client API to flush any rendering to the drawable so that we can
1123 * do our swapbuffers.
1124 */
1125 void
1126 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1127 {
1128 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1129 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1130
1131 if (dri2_dpy->flush) {
1132 if (dri2_dpy->flush->base.version >= 4) {
1133 /* We know there's a current context because:
1134 *
1135 * "If surface is not bound to the calling thread’s current
1136 * context, an EGL_BAD_SURFACE error is generated."
1137 */
1138 _EGLContext *ctx = _eglGetCurrentContext();
1139 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1140
1141 /* From the EGL 1.4 spec (page 52):
1142 *
1143 * "The contents of ancillary buffers are always undefined
1144 * after calling eglSwapBuffers."
1145 */
1146 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1147 dri2_surf->dri_drawable,
1148 __DRI2_FLUSH_DRAWABLE |
1149 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1150 __DRI2_THROTTLE_SWAPBUFFER);
1151 } else {
1152 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1153 }
1154 }
1155 }
1156
1157 static EGLBoolean
1158 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1159 {
1160 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1161 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1162 }
1163
1164 static EGLBoolean
1165 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1166 _EGLSurface *surf,
1167 const EGLint *rects, EGLint n_rects)
1168 {
1169 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1170 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1171 rects, n_rects);
1172 }
1173
1174 static EGLBoolean
1175 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1176 EGLint numRects, const EGLint *rects)
1177 {
1178 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1179 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1180 }
1181
1182 static EGLBoolean
1183 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1184 EGLint x, EGLint y, EGLint width, EGLint height)
1185 {
1186 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1187 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1188 }
1189
1190 static EGLBoolean
1191 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1192 void *native_pixmap_target)
1193 {
1194 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1195 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1196 }
1197
1198 static EGLint
1199 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1200 {
1201 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1202 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1203 }
1204
1205 static EGLBoolean
1206 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1207 {
1208 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1209 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1210
1211 (void) drv;
1212
1213 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1214 * we need to copy fake to real here.*/
1215
1216 if (dri2_dpy->flush != NULL)
1217 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1218
1219 return EGL_TRUE;
1220 }
1221
1222 static EGLBoolean
1223 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1224 {
1225 (void) drv;
1226 (void) disp;
1227
1228 if (engine != EGL_CORE_NATIVE_ENGINE)
1229 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1230 /* glXWaitX(); */
1231
1232 return EGL_TRUE;
1233 }
1234
1235 static EGLBoolean
1236 dri2_bind_tex_image(_EGLDriver *drv,
1237 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1238 {
1239 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1240 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1241 struct dri2_egl_context *dri2_ctx;
1242 _EGLContext *ctx;
1243 GLint format, target;
1244
1245 ctx = _eglGetCurrentContext();
1246 dri2_ctx = dri2_egl_context(ctx);
1247
1248 if (!_eglBindTexImage(drv, disp, surf, buffer))
1249 return EGL_FALSE;
1250
1251 switch (dri2_surf->base.TextureFormat) {
1252 case EGL_TEXTURE_RGB:
1253 format = __DRI_TEXTURE_FORMAT_RGB;
1254 break;
1255 case EGL_TEXTURE_RGBA:
1256 format = __DRI_TEXTURE_FORMAT_RGBA;
1257 break;
1258 default:
1259 assert(0);
1260 }
1261
1262 switch (dri2_surf->base.TextureTarget) {
1263 case EGL_TEXTURE_2D:
1264 target = GL_TEXTURE_2D;
1265 break;
1266 default:
1267 assert(0);
1268 }
1269
1270 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1271 target, format,
1272 dri2_surf->dri_drawable);
1273
1274 return EGL_TRUE;
1275 }
1276
1277 static EGLBoolean
1278 dri2_release_tex_image(_EGLDriver *drv,
1279 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1280 {
1281 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1282 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1283 struct dri2_egl_context *dri2_ctx;
1284 _EGLContext *ctx;
1285 GLint target;
1286
1287 ctx = _eglGetCurrentContext();
1288 dri2_ctx = dri2_egl_context(ctx);
1289
1290 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1291 return EGL_FALSE;
1292
1293 switch (dri2_surf->base.TextureTarget) {
1294 case EGL_TEXTURE_2D:
1295 target = GL_TEXTURE_2D;
1296 break;
1297 default:
1298 assert(0);
1299 }
1300
1301 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1302 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1303 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1304 target,
1305 dri2_surf->dri_drawable);
1306 }
1307
1308 return EGL_TRUE;
1309 }
1310
1311 static _EGLImage*
1312 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1313 EGLenum target, EGLClientBuffer buffer,
1314 const EGLint *attr_list)
1315 {
1316 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1317 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1318 attr_list);
1319 }
1320
1321 static _EGLImage *
1322 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1323 {
1324 struct dri2_egl_image *dri2_img;
1325
1326 if (dri_image == NULL) {
1327 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1328 return NULL;
1329 }
1330
1331 dri2_img = malloc(sizeof *dri2_img);
1332 if (!dri2_img) {
1333 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1334 return NULL;
1335 }
1336
1337 if (!_eglInitImage(&dri2_img->base, disp)) {
1338 free(dri2_img);
1339 return NULL;
1340 }
1341
1342 dri2_img->dri_image = dri_image;
1343
1344 return &dri2_img->base;
1345 }
1346
1347 static _EGLImage *
1348 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1349 EGLClientBuffer buffer,
1350 const EGLint *attr_list)
1351 {
1352 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1353 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1354 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1355 __DRIimage *dri_image;
1356
1357 if (renderbuffer == 0) {
1358 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1359 return EGL_NO_IMAGE_KHR;
1360 }
1361
1362 dri_image =
1363 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1364 renderbuffer, NULL);
1365
1366 return dri2_create_image_from_dri(disp, dri_image);
1367 }
1368
1369 #ifdef HAVE_LIBDRM
1370 static _EGLImage *
1371 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1372 EGLClientBuffer buffer, const EGLint *attr_list)
1373 {
1374 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1375 EGLint format, name, pitch, err;
1376 _EGLImageAttribs attrs;
1377 __DRIimage *dri_image;
1378
1379 name = (EGLint) (uintptr_t) buffer;
1380
1381 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1382 if (err != EGL_SUCCESS)
1383 return NULL;
1384
1385 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1386 attrs.DRMBufferStrideMESA <= 0) {
1387 _eglError(EGL_BAD_PARAMETER,
1388 "bad width, height or stride");
1389 return NULL;
1390 }
1391
1392 switch (attrs.DRMBufferFormatMESA) {
1393 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1394 format = __DRI_IMAGE_FORMAT_ARGB8888;
1395 pitch = attrs.DRMBufferStrideMESA;
1396 break;
1397 default:
1398 _eglError(EGL_BAD_PARAMETER,
1399 "dri2_create_image_khr: unsupported pixmap depth");
1400 return NULL;
1401 }
1402
1403 dri_image =
1404 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1405 attrs.Width,
1406 attrs.Height,
1407 format,
1408 name,
1409 pitch,
1410 NULL);
1411
1412 return dri2_create_image_from_dri(disp, dri_image);
1413 }
1414 #endif
1415
1416 #ifdef HAVE_WAYLAND_PLATFORM
1417
1418 /* This structure describes how a wl_buffer maps to one or more
1419 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1420 * offsets and strides of the planes in the buffer. This table maps a
1421 * wl_drm format code to a description of the planes in the buffer
1422 * that lets us create a __DRIimage for each of the planes. */
1423
1424 static const struct wl_drm_components_descriptor {
1425 uint32_t dri_components;
1426 EGLint components;
1427 int nplanes;
1428 } wl_drm_components[] = {
1429 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1430 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1431 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1432 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1433 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1434 };
1435
1436 static _EGLImage *
1437 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1438 EGLClientBuffer _buffer,
1439 const EGLint *attr_list)
1440 {
1441 struct wl_drm_buffer *buffer;
1442 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1443 const struct wl_drm_components_descriptor *f;
1444 __DRIimage *dri_image;
1445 _EGLImageAttribs attrs;
1446 EGLint err;
1447 int32_t plane;
1448
1449 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1450 (struct wl_resource *) _buffer);
1451 if (!buffer)
1452 return NULL;
1453
1454 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1455 plane = attrs.PlaneWL;
1456 if (err != EGL_SUCCESS) {
1457 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1458 return NULL;
1459 }
1460
1461 f = buffer->driver_format;
1462 if (plane < 0 || plane >= f->nplanes) {
1463 _eglError(EGL_BAD_PARAMETER,
1464 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1465 return NULL;
1466 }
1467
1468 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1469
1470 if (dri_image == NULL) {
1471 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1472 return NULL;
1473 }
1474
1475 return dri2_create_image_from_dri(disp, dri_image);
1476 }
1477 #endif
1478
1479 static EGLBoolean
1480 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1481 EGLuint64KHR *ust, EGLuint64KHR *msc,
1482 EGLuint64KHR *sbc)
1483 {
1484 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1485 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1486 }
1487
1488 /**
1489 * Set the error code after a call to
1490 * dri2_egl_image::dri_image::createImageFromTexture.
1491 */
1492 static void
1493 dri2_create_image_khr_texture_error(int dri_error)
1494 {
1495 EGLint egl_error;
1496
1497 switch (dri_error) {
1498 case __DRI_IMAGE_ERROR_SUCCESS:
1499 return;
1500
1501 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1502 egl_error = EGL_BAD_ALLOC;
1503 break;
1504
1505 case __DRI_IMAGE_ERROR_BAD_MATCH:
1506 egl_error = EGL_BAD_MATCH;
1507 break;
1508
1509 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1510 egl_error = EGL_BAD_PARAMETER;
1511 break;
1512
1513 default:
1514 assert(0);
1515 egl_error = EGL_BAD_MATCH;
1516 break;
1517 }
1518
1519 _eglError(egl_error, "dri2_create_image_khr_texture");
1520 }
1521
1522 static _EGLImage *
1523 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1524 EGLenum target,
1525 EGLClientBuffer buffer,
1526 const EGLint *attr_list)
1527 {
1528 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1529 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1530 struct dri2_egl_image *dri2_img;
1531 GLuint texture = (GLuint) (uintptr_t) buffer;
1532 _EGLImageAttribs attrs;
1533 GLuint depth;
1534 GLenum gl_target;
1535 unsigned error;
1536
1537 if (texture == 0) {
1538 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1539 return EGL_NO_IMAGE_KHR;
1540 }
1541
1542 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1543 return EGL_NO_IMAGE_KHR;
1544
1545 switch (target) {
1546 case EGL_GL_TEXTURE_2D_KHR:
1547 depth = 0;
1548 gl_target = GL_TEXTURE_2D;
1549 break;
1550 case EGL_GL_TEXTURE_3D_KHR:
1551 depth = attrs.GLTextureZOffset;
1552 gl_target = GL_TEXTURE_3D;
1553 break;
1554 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1555 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1556 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1557 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1558 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1559 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1560 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1561 gl_target = GL_TEXTURE_CUBE_MAP;
1562 break;
1563 default:
1564 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1565 return EGL_NO_IMAGE_KHR;
1566 }
1567
1568 dri2_img = malloc(sizeof *dri2_img);
1569 if (!dri2_img) {
1570 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1571 return EGL_NO_IMAGE_KHR;
1572 }
1573
1574 if (!_eglInitImage(&dri2_img->base, disp)) {
1575 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1576 free(dri2_img);
1577 return EGL_NO_IMAGE_KHR;
1578 }
1579
1580 dri2_img->dri_image =
1581 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1582 gl_target,
1583 texture,
1584 depth,
1585 attrs.GLTextureLevel,
1586 &error,
1587 dri2_img);
1588 dri2_create_image_khr_texture_error(error);
1589
1590 if (!dri2_img->dri_image) {
1591 free(dri2_img);
1592 return EGL_NO_IMAGE_KHR;
1593 }
1594 return &dri2_img->base;
1595 }
1596
1597 static struct wl_buffer*
1598 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1599 _EGLImage *img)
1600 {
1601 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1602 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1603 }
1604
1605 #ifdef HAVE_LIBDRM
1606 static EGLBoolean
1607 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1608 {
1609 unsigned i;
1610
1611 /**
1612 * The spec says:
1613 *
1614 * "Required attributes and their values are as follows:
1615 *
1616 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1617 *
1618 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1619 * by drm_fourcc.h and used as the pixel_format parameter of the
1620 * drm_mode_fb_cmd2 ioctl."
1621 *
1622 * and
1623 *
1624 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1625 * incomplete, EGL_BAD_PARAMETER is generated."
1626 */
1627 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1628 !attrs->DMABufFourCC.IsPresent) {
1629 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1630 return EGL_FALSE;
1631 }
1632
1633 /**
1634 * Also:
1635 *
1636 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1637 * specified for a plane's pitch or offset isn't supported by EGL,
1638 * EGL_BAD_ACCESS is generated."
1639 */
1640 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1641 if (attrs->DMABufPlanePitches[i].IsPresent &&
1642 attrs->DMABufPlanePitches[i].Value <= 0) {
1643 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1644 return EGL_FALSE;
1645 }
1646 }
1647
1648 return EGL_TRUE;
1649 }
1650
1651 /* Returns the total number of file descriptors. Zero indicates an error. */
1652 static unsigned
1653 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1654 {
1655 unsigned i, plane_n;
1656
1657 switch (attrs->DMABufFourCC.Value) {
1658 case DRM_FORMAT_RGB332:
1659 case DRM_FORMAT_BGR233:
1660 case DRM_FORMAT_XRGB4444:
1661 case DRM_FORMAT_XBGR4444:
1662 case DRM_FORMAT_RGBX4444:
1663 case DRM_FORMAT_BGRX4444:
1664 case DRM_FORMAT_ARGB4444:
1665 case DRM_FORMAT_ABGR4444:
1666 case DRM_FORMAT_RGBA4444:
1667 case DRM_FORMAT_BGRA4444:
1668 case DRM_FORMAT_XRGB1555:
1669 case DRM_FORMAT_XBGR1555:
1670 case DRM_FORMAT_RGBX5551:
1671 case DRM_FORMAT_BGRX5551:
1672 case DRM_FORMAT_ARGB1555:
1673 case DRM_FORMAT_ABGR1555:
1674 case DRM_FORMAT_RGBA5551:
1675 case DRM_FORMAT_BGRA5551:
1676 case DRM_FORMAT_RGB565:
1677 case DRM_FORMAT_BGR565:
1678 case DRM_FORMAT_RGB888:
1679 case DRM_FORMAT_BGR888:
1680 case DRM_FORMAT_XRGB8888:
1681 case DRM_FORMAT_XBGR8888:
1682 case DRM_FORMAT_RGBX8888:
1683 case DRM_FORMAT_BGRX8888:
1684 case DRM_FORMAT_ARGB8888:
1685 case DRM_FORMAT_ABGR8888:
1686 case DRM_FORMAT_RGBA8888:
1687 case DRM_FORMAT_BGRA8888:
1688 case DRM_FORMAT_XRGB2101010:
1689 case DRM_FORMAT_XBGR2101010:
1690 case DRM_FORMAT_RGBX1010102:
1691 case DRM_FORMAT_BGRX1010102:
1692 case DRM_FORMAT_ARGB2101010:
1693 case DRM_FORMAT_ABGR2101010:
1694 case DRM_FORMAT_RGBA1010102:
1695 case DRM_FORMAT_BGRA1010102:
1696 case DRM_FORMAT_YUYV:
1697 case DRM_FORMAT_YVYU:
1698 case DRM_FORMAT_UYVY:
1699 case DRM_FORMAT_VYUY:
1700 plane_n = 1;
1701 break;
1702 case DRM_FORMAT_NV12:
1703 case DRM_FORMAT_NV21:
1704 case DRM_FORMAT_NV16:
1705 case DRM_FORMAT_NV61:
1706 plane_n = 2;
1707 break;
1708 case DRM_FORMAT_YUV410:
1709 case DRM_FORMAT_YVU410:
1710 case DRM_FORMAT_YUV411:
1711 case DRM_FORMAT_YVU411:
1712 case DRM_FORMAT_YUV420:
1713 case DRM_FORMAT_YVU420:
1714 case DRM_FORMAT_YUV422:
1715 case DRM_FORMAT_YVU422:
1716 case DRM_FORMAT_YUV444:
1717 case DRM_FORMAT_YVU444:
1718 plane_n = 3;
1719 break;
1720 default:
1721 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1722 return 0;
1723 }
1724
1725 /**
1726 * The spec says:
1727 *
1728 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1729 * incomplete, EGL_BAD_PARAMETER is generated."
1730 */
1731 for (i = 0; i < plane_n; ++i) {
1732 if (!attrs->DMABufPlaneFds[i].IsPresent ||
1733 !attrs->DMABufPlaneOffsets[i].IsPresent ||
1734 !attrs->DMABufPlanePitches[i].IsPresent) {
1735 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1736 return 0;
1737 }
1738 }
1739
1740 /**
1741 * The spec also says:
1742 *
1743 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
1744 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
1745 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
1746 * attributes are specified."
1747 */
1748 for (i = plane_n; i < 3; ++i) {
1749 if (attrs->DMABufPlaneFds[i].IsPresent ||
1750 attrs->DMABufPlaneOffsets[i].IsPresent ||
1751 attrs->DMABufPlanePitches[i].IsPresent) {
1752 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
1753 return 0;
1754 }
1755 }
1756
1757 return plane_n;
1758 }
1759
1760 /**
1761 * The spec says:
1762 *
1763 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
1764 * EGL will take a reference to the dma_buf(s) which it will release at any
1765 * time while the EGLDisplay is initialized. It is the responsibility of the
1766 * application to close the dma_buf file descriptors."
1767 *
1768 * Therefore we must never close or otherwise modify the file descriptors.
1769 */
1770 static _EGLImage *
1771 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
1772 EGLClientBuffer buffer, const EGLint *attr_list)
1773 {
1774 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1775 _EGLImage *res;
1776 EGLint err;
1777 _EGLImageAttribs attrs;
1778 __DRIimage *dri_image;
1779 unsigned num_fds;
1780 unsigned i;
1781 int fds[3];
1782 int pitches[3];
1783 int offsets[3];
1784 unsigned error;
1785
1786 /**
1787 * The spec says:
1788 *
1789 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
1790 * error EGL_BAD_PARAMETER is generated."
1791 */
1792 if (buffer != NULL) {
1793 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
1794 return NULL;
1795 }
1796
1797 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1798 if (err != EGL_SUCCESS) {
1799 _eglError(err, "bad attribute");
1800 return NULL;
1801 }
1802
1803 if (!dri2_check_dma_buf_attribs(&attrs))
1804 return NULL;
1805
1806 num_fds = dri2_check_dma_buf_format(&attrs);
1807 if (!num_fds)
1808 return NULL;
1809
1810 for (i = 0; i < num_fds; ++i) {
1811 fds[i] = attrs.DMABufPlaneFds[i].Value;
1812 pitches[i] = attrs.DMABufPlanePitches[i].Value;
1813 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
1814 }
1815
1816 dri_image =
1817 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
1818 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
1819 fds, num_fds, pitches, offsets,
1820 attrs.DMABufYuvColorSpaceHint.Value,
1821 attrs.DMABufSampleRangeHint.Value,
1822 attrs.DMABufChromaHorizontalSiting.Value,
1823 attrs.DMABufChromaVerticalSiting.Value,
1824 &error,
1825 NULL);
1826 dri2_create_image_khr_texture_error(error);
1827
1828 if (!dri_image)
1829 return EGL_NO_IMAGE_KHR;
1830
1831 res = dri2_create_image_from_dri(disp, dri_image);
1832
1833 return res;
1834 }
1835 #endif
1836
1837 _EGLImage *
1838 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1839 _EGLContext *ctx, EGLenum target,
1840 EGLClientBuffer buffer, const EGLint *attr_list)
1841 {
1842 (void) drv;
1843
1844 switch (target) {
1845 case EGL_GL_TEXTURE_2D_KHR:
1846 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1847 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1848 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1849 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1850 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1851 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1852 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
1853 case EGL_GL_RENDERBUFFER_KHR:
1854 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1855 #ifdef HAVE_LIBDRM
1856 case EGL_DRM_BUFFER_MESA:
1857 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1858 #endif
1859 #ifdef HAVE_WAYLAND_PLATFORM
1860 case EGL_WAYLAND_BUFFER_WL:
1861 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1862 #endif
1863 #ifdef HAVE_LIBDRM
1864 case EGL_LINUX_DMA_BUF_EXT:
1865 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
1866 #endif
1867 default:
1868 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1869 return EGL_NO_IMAGE_KHR;
1870 }
1871 }
1872
1873 static EGLBoolean
1874 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1875 {
1876 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1877 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1878
1879 (void) drv;
1880
1881 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1882 free(dri2_img);
1883
1884 return EGL_TRUE;
1885 }
1886
1887 #ifdef HAVE_LIBDRM
1888 static _EGLImage *
1889 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1890 const EGLint *attr_list)
1891 {
1892 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1893 struct dri2_egl_image *dri2_img;
1894 _EGLImageAttribs attrs;
1895 unsigned int dri_use, valid_mask;
1896 int format;
1897 EGLint err = EGL_SUCCESS;
1898
1899 (void) drv;
1900
1901 dri2_img = malloc(sizeof *dri2_img);
1902 if (!dri2_img) {
1903 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1904 return EGL_NO_IMAGE_KHR;
1905 }
1906
1907 if (!attr_list) {
1908 err = EGL_BAD_PARAMETER;
1909 goto cleanup_img;
1910 }
1911
1912 if (!_eglInitImage(&dri2_img->base, disp)) {
1913 err = EGL_BAD_PARAMETER;
1914 goto cleanup_img;
1915 }
1916
1917 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1918 if (err != EGL_SUCCESS)
1919 goto cleanup_img;
1920
1921 if (attrs.Width <= 0 || attrs.Height <= 0) {
1922 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1923 attrs.Width, attrs.Height);
1924 goto cleanup_img;
1925 }
1926
1927 switch (attrs.DRMBufferFormatMESA) {
1928 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1929 format = __DRI_IMAGE_FORMAT_ARGB8888;
1930 break;
1931 default:
1932 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1933 attrs.DRMBufferFormatMESA);
1934 goto cleanup_img;
1935 }
1936
1937 valid_mask =
1938 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1939 EGL_DRM_BUFFER_USE_SHARE_MESA |
1940 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1941 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1942 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1943 attrs.DRMBufferUseMESA & ~valid_mask);
1944 goto cleanup_img;
1945 }
1946
1947 dri_use = 0;
1948 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1949 dri_use |= __DRI_IMAGE_USE_SHARE;
1950 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1951 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1952 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1953 dri_use |= __DRI_IMAGE_USE_CURSOR;
1954
1955 dri2_img->dri_image =
1956 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1957 attrs.Width, attrs.Height,
1958 format, dri_use, dri2_img);
1959 if (dri2_img->dri_image == NULL) {
1960 err = EGL_BAD_ALLOC;
1961 goto cleanup_img;
1962 }
1963
1964 return &dri2_img->base;
1965
1966 cleanup_img:
1967 free(dri2_img);
1968 _eglError(err, "dri2_create_drm_image_mesa");
1969
1970 return EGL_NO_IMAGE_KHR;
1971 }
1972
1973 static EGLBoolean
1974 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1975 EGLint *name, EGLint *handle, EGLint *stride)
1976 {
1977 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1978 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1979
1980 (void) drv;
1981
1982 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1983 __DRI_IMAGE_ATTRIB_NAME, name)) {
1984 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1985 return EGL_FALSE;
1986 }
1987
1988 if (handle)
1989 dri2_dpy->image->queryImage(dri2_img->dri_image,
1990 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1991
1992 if (stride)
1993 dri2_dpy->image->queryImage(dri2_img->dri_image,
1994 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1995
1996 return EGL_TRUE;
1997 }
1998
1999 static EGLBoolean
2000 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2001 _EGLImage *img,
2002 EGLint *fourcc, EGLint *nplanes,
2003 EGLuint64KHR *modifiers)
2004 {
2005 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2006 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2007
2008 (void) drv;
2009
2010
2011 if (nplanes)
2012 dri2_dpy->image->queryImage(dri2_img->dri_image,
2013 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2014 if (fourcc)
2015 dri2_dpy->image->queryImage(dri2_img->dri_image,
2016 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2017
2018 if (modifiers)
2019 *modifiers = 0;
2020
2021 return EGL_TRUE;
2022 }
2023
2024 static EGLBoolean
2025 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2026 int *fds, EGLint *strides, EGLint *offsets)
2027 {
2028 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2029 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2030
2031 (void) drv;
2032
2033 /* rework later to provide multiple fds/strides/offsets */
2034 if (fds)
2035 dri2_dpy->image->queryImage(dri2_img->dri_image,
2036 __DRI_IMAGE_ATTRIB_FD, fds);
2037
2038 if (strides)
2039 dri2_dpy->image->queryImage(dri2_img->dri_image,
2040 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2041
2042 if (offsets)
2043 offsets[0] = 0;
2044
2045 return EGL_TRUE;
2046 }
2047 #endif
2048
2049 #ifdef HAVE_WAYLAND_PLATFORM
2050
2051 static void
2052 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2053 struct wl_drm_buffer *buffer)
2054 {
2055 _EGLDisplay *disp = user_data;
2056 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2057 __DRIimage *img;
2058 int i, dri_components = 0;
2059
2060 if (fd == -1)
2061 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2062 buffer->width,
2063 buffer->height,
2064 buffer->format,
2065 (int*)&name, 1,
2066 buffer->stride,
2067 buffer->offset,
2068 NULL);
2069 else
2070 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2071 buffer->width,
2072 buffer->height,
2073 buffer->format,
2074 &fd, 1,
2075 buffer->stride,
2076 buffer->offset,
2077 NULL);
2078
2079 if (img == NULL)
2080 return;
2081
2082 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2083
2084 buffer->driver_format = NULL;
2085 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2086 if (wl_drm_components[i].dri_components == dri_components)
2087 buffer->driver_format = &wl_drm_components[i];
2088
2089 if (buffer->driver_format == NULL)
2090 dri2_dpy->image->destroyImage(img);
2091 else
2092 buffer->driver_buffer = img;
2093 }
2094
2095 static void
2096 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2097 {
2098 _EGLDisplay *disp = user_data;
2099 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2100
2101 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2102 }
2103
2104 static struct wayland_drm_callbacks wl_drm_callbacks = {
2105 .authenticate = NULL,
2106 .reference_buffer = dri2_wl_reference_buffer,
2107 .release_buffer = dri2_wl_release_buffer
2108 };
2109
2110 static EGLBoolean
2111 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2112 struct wl_display *wl_dpy)
2113 {
2114 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2115 int flags = 0;
2116 uint64_t cap;
2117
2118 (void) drv;
2119
2120 if (dri2_dpy->wl_server_drm)
2121 return EGL_FALSE;
2122
2123 wl_drm_callbacks.authenticate =
2124 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2125
2126 #ifdef HAVE_LIBDRM
2127 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2128 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2129 dri2_dpy->image->base.version >= 7 &&
2130 dri2_dpy->image->createImageFromFds != NULL)
2131 flags |= WAYLAND_DRM_PRIME;
2132 #endif
2133
2134 dri2_dpy->wl_server_drm =
2135 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2136 &wl_drm_callbacks, disp, flags);
2137
2138 if (!dri2_dpy->wl_server_drm)
2139 return EGL_FALSE;
2140
2141 #ifdef HAVE_DRM_PLATFORM
2142 /* We have to share the wl_drm instance with gbm, so gbm can convert
2143 * wl_buffers to gbm bos. */
2144 if (dri2_dpy->gbm_dri)
2145 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2146 #endif
2147
2148 return EGL_TRUE;
2149 }
2150
2151 static EGLBoolean
2152 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2153 struct wl_display *wl_dpy)
2154 {
2155 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2156
2157 (void) drv;
2158
2159 if (!dri2_dpy->wl_server_drm)
2160 return EGL_FALSE;
2161
2162 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2163 dri2_dpy->wl_server_drm = NULL;
2164
2165 return EGL_TRUE;
2166 }
2167
2168 static EGLBoolean
2169 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2170 struct wl_resource *buffer_resource,
2171 EGLint attribute, EGLint *value)
2172 {
2173 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2174 struct wl_drm_buffer *buffer;
2175 const struct wl_drm_components_descriptor *format;
2176
2177 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2178 if (!buffer)
2179 return EGL_FALSE;
2180
2181 format = buffer->driver_format;
2182 switch (attribute) {
2183 case EGL_TEXTURE_FORMAT:
2184 *value = format->components;
2185 return EGL_TRUE;
2186 case EGL_WIDTH:
2187 *value = buffer->width;
2188 return EGL_TRUE;
2189 case EGL_HEIGHT:
2190 *value = buffer->height;
2191 return EGL_TRUE;
2192 }
2193
2194 return EGL_FALSE;
2195 }
2196 #endif
2197
2198 static void
2199 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2200 {
2201 p_atomic_inc(&sync->refcount);
2202 }
2203
2204 static void
2205 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2206 struct dri2_egl_sync *dri2_sync)
2207 {
2208 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2209 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2210 free(dri2_sync);
2211 }
2212 }
2213
2214 static _EGLSync *
2215 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2216 EGLenum type, const EGLint *attrib_list,
2217 const EGLAttribKHR *attrib_list64)
2218 {
2219 _EGLContext *ctx = _eglGetCurrentContext();
2220 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2221 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2222 struct dri2_egl_sync *dri2_sync;
2223
2224 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2225 if (!dri2_sync) {
2226 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2227 return NULL;
2228 }
2229
2230 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2231 attrib_list64)) {
2232 free(dri2_sync);
2233 return NULL;
2234 }
2235
2236 switch (type) {
2237 case EGL_SYNC_FENCE_KHR:
2238 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2239 if (!dri2_sync->fence) {
2240 /* Why did it fail? DRI doesn't return an error code, so we emit
2241 * a generic EGL error that doesn't communicate user error.
2242 */
2243 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2244 free(dri2_sync);
2245 return NULL;
2246 }
2247 break;
2248
2249 case EGL_SYNC_CL_EVENT_KHR:
2250 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2251 dri2_dpy->dri_screen,
2252 dri2_sync->base.CLEvent);
2253 /* this can only happen if the cl_event passed in is invalid. */
2254 if (!dri2_sync->fence) {
2255 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2256 free(dri2_sync);
2257 return NULL;
2258 }
2259
2260 /* the initial status must be "signaled" if the cl_event is signaled */
2261 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2262 dri2_sync->fence, 0, 0))
2263 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2264 break;
2265 }
2266
2267 p_atomic_set(&dri2_sync->refcount, 1);
2268 return &dri2_sync->base;
2269 }
2270
2271 static EGLBoolean
2272 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2273 {
2274 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2275 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2276
2277 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2278 return EGL_TRUE;
2279 }
2280
2281 static EGLint
2282 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2283 EGLint flags, EGLTimeKHR timeout)
2284 {
2285 _EGLContext *ctx = _eglGetCurrentContext();
2286 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2287 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2288 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2289 unsigned wait_flags = 0;
2290 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2291
2292 if (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2293 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2294
2295 /* the sync object should take a reference while waiting */
2296 dri2_egl_ref_sync(dri2_sync);
2297
2298 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2299 dri2_sync->fence, wait_flags,
2300 timeout))
2301 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2302 else
2303 ret = EGL_TIMEOUT_EXPIRED_KHR;
2304
2305 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2306 return ret;
2307 }
2308
2309 static EGLint
2310 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2311 {
2312 _EGLContext *ctx = _eglGetCurrentContext();
2313 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2314 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2315 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2316
2317 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2318 dri2_sync->fence, 0);
2319 return EGL_TRUE;
2320 }
2321
2322 static void
2323 dri2_unload(_EGLDriver *drv)
2324 {
2325 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2326
2327 if (dri2_drv->handle)
2328 dlclose(dri2_drv->handle);
2329 free(dri2_drv);
2330 }
2331
2332 static EGLBoolean
2333 dri2_load(_EGLDriver *drv)
2334 {
2335 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2336 #ifdef HAVE_SHARED_GLAPI
2337 #ifdef HAVE_ANDROID_PLATFORM
2338 const char *libname = "libglapi.so";
2339 #else
2340 const char *libname = "libglapi.so.0";
2341 #endif
2342 #else
2343 /*
2344 * Both libGL.so and libglapi.so are glapi providers. There is no way to
2345 * tell which one to load.
2346 */
2347 const char *libname = NULL;
2348 #endif
2349 void *handle;
2350
2351 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2352 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2353 if (handle) {
2354 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2355 dlsym(handle, "_glapi_get_proc_address");
2356 if (!dri2_drv->get_proc_address || !libname) {
2357 /* no need to keep a reference */
2358 dlclose(handle);
2359 handle = NULL;
2360 }
2361 }
2362
2363 /* if glapi is not available, loading DRI drivers will fail */
2364 if (!dri2_drv->get_proc_address) {
2365 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2366 return EGL_FALSE;
2367 }
2368
2369 dri2_drv->glFlush = (void (*)(void))
2370 dri2_drv->get_proc_address("glFlush");
2371
2372 dri2_drv->handle = handle;
2373
2374 return EGL_TRUE;
2375 }
2376
2377 /**
2378 * This is the main entrypoint into the driver, called by libEGL.
2379 * Create a new _EGLDriver object and init its dispatch table.
2380 */
2381 _EGLDriver *
2382 _eglBuiltInDriverDRI2(const char *args)
2383 {
2384 struct dri2_egl_driver *dri2_drv;
2385
2386 (void) args;
2387
2388 dri2_drv = calloc(1, sizeof *dri2_drv);
2389 if (!dri2_drv)
2390 return NULL;
2391
2392 if (!dri2_load(&dri2_drv->base)) {
2393 free(dri2_drv);
2394 return NULL;
2395 }
2396
2397 _eglInitDriverFallbacks(&dri2_drv->base);
2398 dri2_drv->base.API.Initialize = dri2_initialize;
2399 dri2_drv->base.API.Terminate = dri2_terminate;
2400 dri2_drv->base.API.CreateContext = dri2_create_context;
2401 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2402 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2403 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2404 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2405 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2406 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2407 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2408 dri2_drv->base.API.WaitClient = dri2_wait_client;
2409 dri2_drv->base.API.WaitNative = dri2_wait_native;
2410 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2411 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2412 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2413 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2414 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2415 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2416 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2417 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2418 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2419 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2420 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2421 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2422 #ifdef HAVE_LIBDRM
2423 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2424 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2425 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2426 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2427 #endif
2428 #ifdef HAVE_WAYLAND_PLATFORM
2429 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2430 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2431 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2432 #endif
2433 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2434 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2435 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2436 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2437 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2438
2439 dri2_drv->base.Name = "DRI2";
2440 dri2_drv->base.Unload = dri2_unload;
2441
2442 return &dri2_drv->base;
2443 }