projects / mesa.git / blob
? search:
summary | shortlog | log | commit | commitdiff | tree
history | raw | HEAD
egl/dri2: Move dri2_egl_display virtual funcs to vtbl
[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 disp->Extensions.MESA_configless_context = EGL_TRUE;
512
513 if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
514 disp->Extensions.KHR_create_context = EGL_TRUE;
515
516 if (dri2_dpy->robustness)
517 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
518 }
519
520 if (dri2_dpy->image) {
521 disp->Extensions.MESA_drm_image = EGL_TRUE;
522 disp->Extensions.KHR_image_base = EGL_TRUE;
523 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
524 if (dri2_dpy->image->base.version >= 5 &&
525 dri2_dpy->image->createImageFromTexture) {
526 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
527 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
528 }
529 #ifdef HAVE_DRM_PLATFORM
530 if (dri2_dpy->image->base.version >= 8 &&
531 dri2_dpy->image->createImageFromDmaBufs) {
532 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
533 }
534 #endif
535 }
536 }
537
538 EGLBoolean
539 dri2_create_screen(_EGLDisplay *disp)
540 {
541 const __DRIextension **extensions;
542 struct dri2_egl_display *dri2_dpy;
543
544 dri2_dpy = disp->DriverData;
545
546 if (dri2_dpy->dri2) {
547 if (dri2_dpy->dri2->base.version >= 4) {
548 dri2_dpy->dri_screen =
549 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
550 dri2_dpy->extensions,
551 dri2_dpy->driver_extensions,
552 &dri2_dpy->driver_configs, disp);
553 } else {
554 dri2_dpy->dri_screen =
555 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
556 dri2_dpy->extensions,
557 &dri2_dpy->driver_configs, disp);
558 }
559 } else {
560 assert(dri2_dpy->swrast);
561 if (dri2_dpy->swrast->base.version >= 4) {
562 dri2_dpy->dri_screen =
563 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
564 dri2_dpy->driver_extensions,
565 &dri2_dpy->driver_configs, disp);
566 } else {
567 dri2_dpy->dri_screen =
568 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
569 &dri2_dpy->driver_configs, disp);
570 }
571 }
572
573 if (dri2_dpy->dri_screen == NULL) {
574 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
575 return EGL_FALSE;
576 }
577
578 dri2_dpy->own_dri_screen = 1;
579
580 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
581
582 if (dri2_dpy->dri2) {
583 unsigned i;
584
585 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
586 goto cleanup_dri_screen;
587
588 for (i = 0; extensions[i]; i++) {
589 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
590 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
591 }
592 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
593 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
594 }
595 }
596 } else {
597 assert(dri2_dpy->swrast);
598 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
599 goto cleanup_dri_screen;
600 }
601
602 dri2_setup_screen(disp);
603
604 return EGL_TRUE;
605
606 cleanup_dri_screen:
607 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
608
609 return EGL_FALSE;
610 }
611
612 /**
613 * Called via eglInitialize(), GLX_drv->API.Initialize().
614 */
615 static EGLBoolean
616 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
617 {
618 /* not until swrast_dri is supported */
619 if (disp->Options.UseFallback)
620 return EGL_FALSE;
621
622 switch (disp->Platform) {
623 #ifdef HAVE_X11_PLATFORM
624 case _EGL_PLATFORM_X11:
625 if (disp->Options.TestOnly)
626 return EGL_TRUE;
627 return dri2_initialize_x11(drv, disp);
628 #endif
629
630 #ifdef HAVE_LIBUDEV
631 #ifdef HAVE_DRM_PLATFORM
632 case _EGL_PLATFORM_DRM:
633 if (disp->Options.TestOnly)
634 return EGL_TRUE;
635 return dri2_initialize_drm(drv, disp);
636 #endif
637 #ifdef HAVE_WAYLAND_PLATFORM
638 case _EGL_PLATFORM_WAYLAND:
639 if (disp->Options.TestOnly)
640 return EGL_TRUE;
641 return dri2_initialize_wayland(drv, disp);
642 #endif
643 #endif
644 #ifdef HAVE_ANDROID_PLATFORM
645 case _EGL_PLATFORM_ANDROID:
646 if (disp->Options.TestOnly)
647 return EGL_TRUE;
648 return dri2_initialize_android(drv, disp);
649 #endif
650
651 default:
652 return EGL_FALSE;
653 }
654 }
655
656 /**
657 * Called via eglTerminate(), drv->API.Terminate().
658 */
659 static EGLBoolean
660 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
661 {
662 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
663
664 _eglReleaseDisplayResources(drv, disp);
665 _eglCleanupDisplay(disp);
666
667 if (dri2_dpy->own_dri_screen)
668 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
669 if (dri2_dpy->fd)
670 close(dri2_dpy->fd);
671 if (dri2_dpy->driver)
672 dlclose(dri2_dpy->driver);
673 free(dri2_dpy->device_name);
674
675 if (disp->PlatformDisplay == NULL) {
676 switch (disp->Platform) {
677 #ifdef HAVE_X11_PLATFORM
678 case _EGL_PLATFORM_X11:
679 xcb_disconnect(dri2_dpy->conn);
680 break;
681 #endif
682 #ifdef HAVE_DRM_PLATFORM
683 case _EGL_PLATFORM_DRM:
684 if (dri2_dpy->own_device) {
685 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
686 }
687 break;
688 #endif
689 default:
690 break;
691 }
692 }
693
694 free(dri2_dpy);
695 disp->DriverData = NULL;
696
697 return EGL_TRUE;
698 }
699
700 /**
701 * Set the error code after a call to
702 * dri2_egl_display::dri2::createContextAttribs.
703 */
704 static void
705 dri2_create_context_attribs_error(int dri_error)
706 {
707 EGLint egl_error;
708
709 switch (dri_error) {
710 case __DRI_CTX_ERROR_SUCCESS:
711 return;
712
713 case __DRI_CTX_ERROR_NO_MEMORY:
714 egl_error = EGL_BAD_ALLOC;
715 break;
716
717 /* From the EGL_KHR_create_context spec, section "Errors":
718 *
719 * * If <config> does not support a client API context compatible
720 * with the requested API major and minor version, [...] context flags,
721 * and context reset notification behavior (for client API types where
722 * these attributes are supported), then an EGL_BAD_MATCH error is
723 * generated.
724 *
725 * * If an OpenGL ES context is requested and the values for
726 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
727 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
728 * is not defined, than an EGL_BAD_MATCH error is generated.
729 *
730 * * If an OpenGL context is requested, the requested version is
731 * greater than 3.2, and the value for attribute
732 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
733 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
734 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
735 * one of these bits set; or if the implementation does not support
736 * the requested profile, then an EGL_BAD_MATCH error is generated.
737 */
738 case __DRI_CTX_ERROR_BAD_API:
739 case __DRI_CTX_ERROR_BAD_VERSION:
740 case __DRI_CTX_ERROR_BAD_FLAG:
741 egl_error = EGL_BAD_MATCH;
742 break;
743
744 /* From the EGL_KHR_create_context spec, section "Errors":
745 *
746 * * If an attribute name or attribute value in <attrib_list> is not
747 * recognized (including unrecognized bits in bitmask attributes),
748 * then an EGL_BAD_ATTRIBUTE error is generated."
749 */
750 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
751 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
752 egl_error = EGL_BAD_ATTRIBUTE;
753 break;
754
755 default:
756 assert(0);
757 egl_error = EGL_BAD_MATCH;
758 break;
759 }
760
761 _eglError(egl_error, "dri2_create_context");
762 }
763
764 /**
765 * Called via eglCreateContext(), drv->API.CreateContext().
766 */
767 static _EGLContext *
768 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
769 _EGLContext *share_list, const EGLint *attrib_list)
770 {
771 struct dri2_egl_context *dri2_ctx;
772 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
773 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
774 __DRIcontext *shared =
775 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
776 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
777 const __DRIconfig *dri_config;
778 int api;
779
780 (void) drv;
781
782 dri2_ctx = malloc(sizeof *dri2_ctx);
783 if (!dri2_ctx) {
784 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
785 return NULL;
786 }
787
788 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
789 goto cleanup;
790
791 switch (dri2_ctx->base.ClientAPI) {
792 case EGL_OPENGL_ES_API:
793 switch (dri2_ctx->base.ClientMajorVersion) {
794 case 1:
795 api = __DRI_API_GLES;
796 break;
797 case 2:
798 api = __DRI_API_GLES2;
799 break;
800 case 3:
801 api = __DRI_API_GLES3;
802 break;
803 default:
804 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
805 return NULL;
806 }
807 break;
808 case EGL_OPENGL_API:
809 if ((dri2_ctx->base.ClientMajorVersion >= 4
810 || (dri2_ctx->base.ClientMajorVersion == 3
811 && dri2_ctx->base.ClientMinorVersion >= 2))
812 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
813 api = __DRI_API_OPENGL_CORE;
814 else
815 api = __DRI_API_OPENGL;
816 break;
817 default:
818 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
819 free(dri2_ctx);
820 return NULL;
821 }
822
823 if (conf != NULL) {
824 /* The config chosen here isn't necessarily
825 * used for surfaces later.
826 * A pixmap surface will use the single config.
827 * This opportunity depends on disabling the
828 * doubleBufferMode check in
829 * src/mesa/main/context.c:check_compatible()
830 */
831 if (dri2_config->dri_double_config)
832 dri_config = dri2_config->dri_double_config;
833 else
834 dri_config = dri2_config->dri_single_config;
835
836 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
837 * makes sure the back buffer will always be used.
838 */
839 if (conf->SurfaceType & EGL_WINDOW_BIT)
840 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
841 }
842 else
843 dri_config = NULL;
844
845 if (dri2_dpy->dri2) {
846 if (dri2_dpy->dri2->base.version >= 3) {
847 unsigned error;
848 unsigned num_attribs = 0;
849 uint32_t ctx_attribs[8];
850
851 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
852 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMajorVersion;
853 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
854 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMinorVersion;
855
856 if (dri2_ctx->base.Flags != 0) {
857 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
858 * extension, don't even try to send it the robust-access flag.
859 * It may explode. Instead, generate the required EGL error here.
860 */
861 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
862 && !dri2_dpy->robustness) {
863 _eglError(EGL_BAD_MATCH, "eglCreateContext");
864 goto cleanup;
865 }
866
867 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
868 ctx_attribs[num_attribs++] = dri2_ctx->base.Flags;
869 }
870
871 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
872 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
873 * extension, don't even try to send it a reset strategy. It may
874 * explode. Instead, generate the required EGL error here.
875 */
876 if (!dri2_dpy->robustness) {
877 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
878 goto cleanup;
879 }
880
881 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
882 ctx_attribs[num_attribs++] = __DRI_CTX_RESET_LOSE_CONTEXT;
883 }
884
885 assert(num_attribs <= ARRAY_SIZE(ctx_attribs));
886
887 dri2_ctx->dri_context =
888 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
889 api,
890 dri_config,
891 shared,
892 num_attribs / 2,
893 ctx_attribs,
894 & error,
895 dri2_ctx);
896 dri2_create_context_attribs_error(error);
897 } else {
898 dri2_ctx->dri_context =
899 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
900 api,
901 dri_config,
902 shared,
903 dri2_ctx);
904 }
905 } else {
906 assert(dri2_dpy->swrast);
907 dri2_ctx->dri_context =
908 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
909 api,
910 dri_config,
911 shared,
912 dri2_ctx);
913 }
914
915 if (!dri2_ctx->dri_context)
916 goto cleanup;
917
918 return &dri2_ctx->base;
919
920 cleanup:
921 free(dri2_ctx);
922 return NULL;
923 }
924
925 /**
926 * Called via eglDestroyContext(), drv->API.DestroyContext().
927 */
928 static EGLBoolean
929 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
930 {
931 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
932 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
933
934 if (_eglPutContext(ctx)) {
935 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
936 free(dri2_ctx);
937 }
938
939 return EGL_TRUE;
940 }
941
942 /**
943 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
944 */
945 static EGLBoolean
946 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
947 _EGLSurface *rsurf, _EGLContext *ctx)
948 {
949 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
950 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
951 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
952 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
953 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
954 _EGLContext *old_ctx;
955 _EGLSurface *old_dsurf, *old_rsurf;
956 __DRIdrawable *ddraw, *rdraw;
957 __DRIcontext *cctx;
958
959 /* make new bindings */
960 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
961 return EGL_FALSE;
962
963 /* flush before context switch */
964 if (old_ctx && dri2_drv->glFlush)
965 dri2_drv->glFlush();
966
967 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
968 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
969 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
970
971 if (old_ctx) {
972 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
973 dri2_dpy->core->unbindContext(old_cctx);
974 }
975
976 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
977 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
978 if (old_dsurf)
979 drv->API.DestroySurface(drv, disp, old_dsurf);
980 if (old_rsurf)
981 drv->API.DestroySurface(drv, disp, old_rsurf);
982 if (old_ctx)
983 drv->API.DestroyContext(drv, disp, old_ctx);
984
985 return EGL_TRUE;
986 } else {
987 /* undo the previous _eglBindContext */
988 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
989 assert(&dri2_ctx->base == ctx &&
990 &dri2_dsurf->base == dsurf &&
991 &dri2_rsurf->base == rsurf);
992
993 _eglPutSurface(dsurf);
994 _eglPutSurface(rsurf);
995 _eglPutContext(ctx);
996
997 _eglPutSurface(old_dsurf);
998 _eglPutSurface(old_rsurf);
999 _eglPutContext(old_ctx);
1000
1001 return EGL_FALSE;
1002 }
1003 }
1004
1005 /*
1006 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1007 */
1008 static _EGLProc
1009 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1010 {
1011 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1012
1013 return dri2_drv->get_proc_address(procname);
1014 }
1015
1016 static EGLBoolean
1017 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1018 {
1019 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1020 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1021
1022 (void) drv;
1023
1024 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1025 * we need to copy fake to real here.*/
1026
1027 if (dri2_dpy->flush != NULL)
1028 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1029
1030 return EGL_TRUE;
1031 }
1032
1033 static EGLBoolean
1034 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1035 {
1036 (void) drv;
1037 (void) disp;
1038
1039 if (engine != EGL_CORE_NATIVE_ENGINE)
1040 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1041 /* glXWaitX(); */
1042
1043 return EGL_TRUE;
1044 }
1045
1046 static EGLBoolean
1047 dri2_bind_tex_image(_EGLDriver *drv,
1048 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1049 {
1050 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1051 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1052 struct dri2_egl_context *dri2_ctx;
1053 _EGLContext *ctx;
1054 GLint format, target;
1055
1056 ctx = _eglGetCurrentContext();
1057 dri2_ctx = dri2_egl_context(ctx);
1058
1059 if (!_eglBindTexImage(drv, disp, surf, buffer))
1060 return EGL_FALSE;
1061
1062 switch (dri2_surf->base.TextureFormat) {
1063 case EGL_TEXTURE_RGB:
1064 format = __DRI_TEXTURE_FORMAT_RGB;
1065 break;
1066 case EGL_TEXTURE_RGBA:
1067 format = __DRI_TEXTURE_FORMAT_RGBA;
1068 break;
1069 default:
1070 assert(0);
1071 }
1072
1073 switch (dri2_surf->base.TextureTarget) {
1074 case EGL_TEXTURE_2D:
1075 target = GL_TEXTURE_2D;
1076 break;
1077 default:
1078 assert(0);
1079 }
1080
1081 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1082 target, format,
1083 dri2_surf->dri_drawable);
1084
1085 return EGL_TRUE;
1086 }
1087
1088 static EGLBoolean
1089 dri2_release_tex_image(_EGLDriver *drv,
1090 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1091 {
1092 #if __DRI_TEX_BUFFER_VERSION >= 3
1093 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1094 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1095 struct dri2_egl_context *dri2_ctx;
1096 _EGLContext *ctx;
1097 GLint target;
1098
1099 ctx = _eglGetCurrentContext();
1100 dri2_ctx = dri2_egl_context(ctx);
1101
1102 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1103 return EGL_FALSE;
1104
1105 switch (dri2_surf->base.TextureTarget) {
1106 case EGL_TEXTURE_2D:
1107 target = GL_TEXTURE_2D;
1108 break;
1109 default:
1110 assert(0);
1111 }
1112 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
1113 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1114 target,
1115 dri2_surf->dri_drawable);
1116 #endif
1117
1118 return EGL_TRUE;
1119 }
1120
1121 static _EGLImage *
1122 dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
1123 {
1124 struct dri2_egl_image *dri2_img;
1125
1126 if (dri_image == NULL) {
1127 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1128 return NULL;
1129 }
1130
1131 dri2_img = malloc(sizeof *dri2_img);
1132 if (!dri2_img) {
1133 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1134 return NULL;
1135 }
1136
1137 if (!_eglInitImage(&dri2_img->base, disp)) {
1138 free(dri2_img);
1139 return NULL;
1140 }
1141
1142 dri2_img->dri_image = dri_image;
1143
1144 return &dri2_img->base;
1145 }
1146
1147 static _EGLImage *
1148 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1149 EGLClientBuffer buffer,
1150 const EGLint *attr_list)
1151 {
1152 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1153 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1154 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1155 __DRIimage *dri_image;
1156
1157 if (renderbuffer == 0) {
1158 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1159 return EGL_NO_IMAGE_KHR;
1160 }
1161
1162 dri_image =
1163 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1164 renderbuffer, NULL);
1165
1166 return dri2_create_image(disp, dri_image);
1167 }
1168
1169 #ifdef HAVE_DRM_PLATFORM
1170 static _EGLImage *
1171 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1172 EGLClientBuffer buffer, const EGLint *attr_list)
1173 {
1174 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1175 EGLint format, name, pitch, err;
1176 _EGLImageAttribs attrs;
1177 __DRIimage *dri_image;
1178
1179 name = (EGLint) (uintptr_t) buffer;
1180
1181 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1182 if (err != EGL_SUCCESS)
1183 return NULL;
1184
1185 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1186 attrs.DRMBufferStrideMESA <= 0) {
1187 _eglError(EGL_BAD_PARAMETER,
1188 "bad width, height or stride");
1189 return NULL;
1190 }
1191
1192 switch (attrs.DRMBufferFormatMESA) {
1193 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1194 format = __DRI_IMAGE_FORMAT_ARGB8888;
1195 pitch = attrs.DRMBufferStrideMESA;
1196 break;
1197 default:
1198 _eglError(EGL_BAD_PARAMETER,
1199 "dri2_create_image_khr: unsupported pixmap depth");
1200 return NULL;
1201 }
1202
1203 dri_image =
1204 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1205 attrs.Width,
1206 attrs.Height,
1207 format,
1208 name,
1209 pitch,
1210 NULL);
1211
1212 return dri2_create_image(disp, dri_image);
1213 }
1214 #endif
1215
1216 #ifdef HAVE_WAYLAND_PLATFORM
1217
1218 /* This structure describes how a wl_buffer maps to one or more
1219 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1220 * offsets and strides of the planes in the buffer. This table maps a
1221 * wl_drm format code to a description of the planes in the buffer
1222 * that lets us create a __DRIimage for each of the planes. */
1223
1224 static const struct wl_drm_components_descriptor {
1225 uint32_t dri_components;
1226 EGLint components;
1227 int nplanes;
1228 } wl_drm_components[] = {
1229 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1230 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1231 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1232 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1233 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1234 };
1235
1236 static _EGLImage *
1237 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1238 EGLClientBuffer _buffer,
1239 const EGLint *attr_list)
1240 {
1241 struct wl_drm_buffer *buffer;
1242 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1243 const struct wl_drm_components_descriptor *f;
1244 __DRIimage *dri_image;
1245 _EGLImageAttribs attrs;
1246 EGLint err;
1247 int32_t plane;
1248
1249 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1250 (struct wl_resource *) _buffer);
1251 if (!buffer)
1252 return NULL;
1253
1254 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1255 plane = attrs.PlaneWL;
1256 if (err != EGL_SUCCESS) {
1257 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1258 return NULL;
1259 }
1260
1261 f = buffer->driver_format;
1262 if (plane < 0 || plane >= f->nplanes) {
1263 _eglError(EGL_BAD_PARAMETER,
1264 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1265 return NULL;
1266 }
1267
1268 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1269
1270 if (dri_image == NULL) {
1271 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1272 return NULL;
1273 }
1274
1275 return dri2_create_image(disp, dri_image);
1276 }
1277 #endif
1278
1279 /**
1280 * Set the error code after a call to
1281 * dri2_egl_image::dri_image::createImageFromTexture.
1282 */
1283 static void
1284 dri2_create_image_khr_texture_error(int dri_error)
1285 {
1286 EGLint egl_error;
1287
1288 switch (dri_error) {
1289 case __DRI_IMAGE_ERROR_SUCCESS:
1290 return;
1291
1292 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1293 egl_error = EGL_BAD_ALLOC;
1294 break;
1295
1296 case __DRI_IMAGE_ERROR_BAD_MATCH:
1297 egl_error = EGL_BAD_MATCH;
1298 break;
1299
1300 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1301 egl_error = EGL_BAD_PARAMETER;
1302 break;
1303
1304 default:
1305 assert(0);
1306 egl_error = EGL_BAD_MATCH;
1307 break;
1308 }
1309
1310 _eglError(egl_error, "dri2_create_image_khr_texture");
1311 }
1312
1313 static _EGLImage *
1314 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1315 EGLenum target,
1316 EGLClientBuffer buffer,
1317 const EGLint *attr_list)
1318 {
1319 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1320 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1321 struct dri2_egl_image *dri2_img;
1322 GLuint texture = (GLuint) (uintptr_t) buffer;
1323 _EGLImageAttribs attrs;
1324 GLuint depth;
1325 GLenum gl_target;
1326 unsigned error;
1327
1328 if (texture == 0) {
1329 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1330 return EGL_NO_IMAGE_KHR;
1331 }
1332
1333 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1334 return EGL_NO_IMAGE_KHR;
1335
1336 switch (target) {
1337 case EGL_GL_TEXTURE_2D_KHR:
1338 depth = 0;
1339 gl_target = GL_TEXTURE_2D;
1340 break;
1341 case EGL_GL_TEXTURE_3D_KHR:
1342 depth = attrs.GLTextureZOffset;
1343 gl_target = GL_TEXTURE_3D;
1344 break;
1345 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1346 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1347 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1348 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1349 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1350 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1351 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1352 gl_target = GL_TEXTURE_CUBE_MAP;
1353 break;
1354 default:
1355 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1356 return EGL_NO_IMAGE_KHR;
1357 }
1358
1359 dri2_img = malloc(sizeof *dri2_img);
1360 if (!dri2_img) {
1361 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1362 return EGL_NO_IMAGE_KHR;
1363 }
1364
1365 if (!_eglInitImage(&dri2_img->base, disp)) {
1366 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1367 free(dri2_img);
1368 return EGL_NO_IMAGE_KHR;
1369 }
1370
1371 dri2_img->dri_image =
1372 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1373 gl_target,
1374 texture,
1375 depth,
1376 attrs.GLTextureLevel,
1377 &error,
1378 dri2_img);
1379 dri2_create_image_khr_texture_error(error);
1380
1381 if (!dri2_img->dri_image) {
1382 free(dri2_img);
1383 return EGL_NO_IMAGE_KHR;
1384 }
1385 return &dri2_img->base;
1386 }
1387
1388 #ifdef HAVE_DRM_PLATFORM
1389 static EGLBoolean
1390 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1391 {
1392 unsigned i;
1393
1394 /**
1395 * The spec says:
1396 *
1397 * "Required attributes and their values are as follows:
1398 *
1399 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1400 *
1401 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1402 * by drm_fourcc.h and used as the pixel_format parameter of the
1403 * drm_mode_fb_cmd2 ioctl."
1404 *
1405 * and
1406 *
1407 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1408 * incomplete, EGL_BAD_PARAMETER is generated."
1409 */
1410 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1411 !attrs->DMABufFourCC.IsPresent) {
1412 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1413 return EGL_FALSE;
1414 }
1415
1416 /**
1417 * Also:
1418 *
1419 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1420 * specified for a plane's pitch or offset isn't supported by EGL,
1421 * EGL_BAD_ACCESS is generated."
1422 */
1423 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1424 if (attrs->DMABufPlanePitches[i].IsPresent &&
1425 attrs->DMABufPlanePitches[i].Value <= 0) {
1426 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1427 return EGL_FALSE;
1428 }
1429 }
1430
1431 return EGL_TRUE;
1432 }
1433
1434 /* Returns the total number of file descriptors. Zero indicates an error. */
1435 static unsigned
1436 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1437 {
1438 unsigned i, plane_n;
1439
1440 switch (attrs->DMABufFourCC.Value) {
1441 case DRM_FORMAT_RGB332:
1442 case DRM_FORMAT_BGR233:
1443 case DRM_FORMAT_XRGB4444:
1444 case DRM_FORMAT_XBGR4444:
1445 case DRM_FORMAT_RGBX4444:
1446 case DRM_FORMAT_BGRX4444:
1447 case DRM_FORMAT_ARGB4444:
1448 case DRM_FORMAT_ABGR4444:
1449 case DRM_FORMAT_RGBA4444:
1450 case DRM_FORMAT_BGRA4444:
1451 case DRM_FORMAT_XRGB1555:
1452 case DRM_FORMAT_XBGR1555:
1453 case DRM_FORMAT_RGBX5551:
1454 case DRM_FORMAT_BGRX5551:
1455 case DRM_FORMAT_ARGB1555:
1456 case DRM_FORMAT_ABGR1555:
1457 case DRM_FORMAT_RGBA5551:
1458 case DRM_FORMAT_BGRA5551:
1459 case DRM_FORMAT_RGB565:
1460 case DRM_FORMAT_BGR565:
1461 case DRM_FORMAT_RGB888:
1462 case DRM_FORMAT_BGR888:
1463 case DRM_FORMAT_XRGB8888:
1464 case DRM_FORMAT_XBGR8888:
1465 case DRM_FORMAT_RGBX8888:
1466 case DRM_FORMAT_BGRX8888:
1467 case DRM_FORMAT_ARGB8888:
1468 case DRM_FORMAT_ABGR8888:
1469 case DRM_FORMAT_RGBA8888:
1470 case DRM_FORMAT_BGRA8888:
1471 case DRM_FORMAT_XRGB2101010:
1472 case DRM_FORMAT_XBGR2101010:
1473 case DRM_FORMAT_RGBX1010102:
1474 case DRM_FORMAT_BGRX1010102:
1475 case DRM_FORMAT_ARGB2101010:
1476 case DRM_FORMAT_ABGR2101010:
1477 case DRM_FORMAT_RGBA1010102:
1478 case DRM_FORMAT_BGRA1010102:
1479 case DRM_FORMAT_YUYV:
1480 case DRM_FORMAT_YVYU:
1481 case DRM_FORMAT_UYVY:
1482 case DRM_FORMAT_VYUY:
1483 plane_n = 1;
1484 break;
1485 case DRM_FORMAT_NV12:
1486 case DRM_FORMAT_NV21:
1487 case DRM_FORMAT_NV16:
1488 case DRM_FORMAT_NV61:
1489 plane_n = 2;
1490 break;
1491 case DRM_FORMAT_YUV410:
1492 case DRM_FORMAT_YVU410:
1493 case DRM_FORMAT_YUV411:
1494 case DRM_FORMAT_YVU411:
1495 case DRM_FORMAT_YUV420:
1496 case DRM_FORMAT_YVU420:
1497 case DRM_FORMAT_YUV422:
1498 case DRM_FORMAT_YVU422:
1499 case DRM_FORMAT_YUV444:
1500 case DRM_FORMAT_YVU444:
1501 plane_n = 3;
1502 break;
1503 default:
1504 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1505 return 0;
1506 }
1507
1508 /**
1509 * The spec says:
1510 *
1511 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1512 * incomplete, EGL_BAD_PARAMETER is generated."
1513 */
1514 for (i = 0; i < plane_n; ++i) {
1515 if (!attrs->DMABufPlaneFds[i].IsPresent ||
1516 !attrs->DMABufPlaneOffsets[i].IsPresent ||
1517 !attrs->DMABufPlanePitches[i].IsPresent) {
1518 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1519 return 0;
1520 }
1521 }
1522
1523 /**
1524 * The spec also says:
1525 *
1526 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
1527 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
1528 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
1529 * attributes are specified."
1530 */
1531 for (i = plane_n; i < 3; ++i) {
1532 if (attrs->DMABufPlaneFds[i].IsPresent ||
1533 attrs->DMABufPlaneOffsets[i].IsPresent ||
1534 attrs->DMABufPlanePitches[i].IsPresent) {
1535 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
1536 return 0;
1537 }
1538 }
1539
1540 return plane_n;
1541 }
1542
1543 /**
1544 * The spec says:
1545 *
1546 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target,
1547 * the EGL takes ownership of the file descriptor and is responsible for
1548 * closing it, which it may do at any time while the EGLDisplay is
1549 * initialized."
1550 */
1551 static void
1552 dri2_take_dma_buf_ownership(const int *fds, unsigned num_fds)
1553 {
1554 int already_closed[num_fds];
1555 unsigned num_closed = 0;
1556 unsigned i, j;
1557
1558 for (i = 0; i < num_fds; ++i) {
1559 /**
1560 * The same file descriptor can be referenced multiple times in case more
1561 * than one plane is found in the same buffer, just with a different
1562 * offset.
1563 */
1564 for (j = 0; j < num_closed; ++j) {
1565 if (already_closed[j] == fds[i])
1566 break;
1567 }
1568
1569 if (j == num_closed) {
1570 close(fds[i]);
1571 already_closed[num_closed++] = fds[i];
1572 }
1573 }
1574 }
1575
1576 static _EGLImage *
1577 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
1578 EGLClientBuffer buffer, const EGLint *attr_list)
1579 {
1580 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1581 _EGLImage *res;
1582 EGLint err;
1583 _EGLImageAttribs attrs;
1584 __DRIimage *dri_image;
1585 unsigned num_fds;
1586 unsigned i;
1587 int fds[3];
1588 int pitches[3];
1589 int offsets[3];
1590 unsigned error;
1591
1592 /**
1593 * The spec says:
1594 *
1595 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
1596 * error EGL_BAD_PARAMETER is generated."
1597 */
1598 if (buffer != NULL) {
1599 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
1600 return NULL;
1601 }
1602
1603 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1604 if (err != EGL_SUCCESS) {
1605 _eglError(err, "bad attribute");
1606 return NULL;
1607 }
1608
1609 if (!dri2_check_dma_buf_attribs(&attrs))
1610 return NULL;
1611
1612 num_fds = dri2_check_dma_buf_format(&attrs);
1613 if (!num_fds)
1614 return NULL;
1615
1616 for (i = 0; i < num_fds; ++i) {
1617 fds[i] = attrs.DMABufPlaneFds[i].Value;
1618 pitches[i] = attrs.DMABufPlanePitches[i].Value;
1619 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
1620 }
1621
1622 dri_image =
1623 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
1624 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
1625 fds, num_fds, pitches, offsets,
1626 attrs.DMABufYuvColorSpaceHint.Value,
1627 attrs.DMABufSampleRangeHint.Value,
1628 attrs.DMABufChromaHorizontalSiting.Value,
1629 attrs.DMABufChromaVerticalSiting.Value,
1630 &error,
1631 NULL);
1632 dri2_create_image_khr_texture_error(error);
1633
1634 if (!dri_image)
1635 return EGL_NO_IMAGE_KHR;
1636
1637 res = dri2_create_image(disp, dri_image);
1638 if (res)
1639 dri2_take_dma_buf_ownership(fds, num_fds);
1640
1641 return res;
1642 }
1643 #endif
1644
1645 _EGLImage *
1646 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1647 _EGLContext *ctx, EGLenum target,
1648 EGLClientBuffer buffer, const EGLint *attr_list)
1649 {
1650 (void) drv;
1651
1652 switch (target) {
1653 case EGL_GL_TEXTURE_2D_KHR:
1654 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1655 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1656 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1657 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1658 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1659 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1660 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
1661 case EGL_GL_RENDERBUFFER_KHR:
1662 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1663 #ifdef HAVE_DRM_PLATFORM
1664 case EGL_DRM_BUFFER_MESA:
1665 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1666 #endif
1667 #ifdef HAVE_WAYLAND_PLATFORM
1668 case EGL_WAYLAND_BUFFER_WL:
1669 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1670 #endif
1671 #ifdef HAVE_DRM_PLATFORM
1672 case EGL_LINUX_DMA_BUF_EXT:
1673 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
1674 #endif
1675 default:
1676 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1677 return EGL_NO_IMAGE_KHR;
1678 }
1679 }
1680
1681 static EGLBoolean
1682 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1683 {
1684 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1685 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1686
1687 (void) drv;
1688
1689 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1690 free(dri2_img);
1691
1692 return EGL_TRUE;
1693 }
1694
1695 #ifdef HAVE_DRM_PLATFORM
1696 static _EGLImage *
1697 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1698 const EGLint *attr_list)
1699 {
1700 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1701 struct dri2_egl_image *dri2_img;
1702 _EGLImageAttribs attrs;
1703 unsigned int dri_use, valid_mask;
1704 int format;
1705 EGLint err = EGL_SUCCESS;
1706
1707 (void) drv;
1708
1709 dri2_img = malloc(sizeof *dri2_img);
1710 if (!dri2_img) {
1711 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1712 return EGL_NO_IMAGE_KHR;
1713 }
1714
1715 if (!attr_list) {
1716 err = EGL_BAD_PARAMETER;
1717 goto cleanup_img;
1718 }
1719
1720 if (!_eglInitImage(&dri2_img->base, disp)) {
1721 err = EGL_BAD_PARAMETER;
1722 goto cleanup_img;
1723 }
1724
1725 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1726 if (err != EGL_SUCCESS)
1727 goto cleanup_img;
1728
1729 if (attrs.Width <= 0 || attrs.Height <= 0) {
1730 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1731 attrs.Width, attrs.Height);
1732 goto cleanup_img;
1733 }
1734
1735 switch (attrs.DRMBufferFormatMESA) {
1736 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1737 format = __DRI_IMAGE_FORMAT_ARGB8888;
1738 break;
1739 default:
1740 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1741 attrs.DRMBufferFormatMESA);
1742 goto cleanup_img;
1743 }
1744
1745 valid_mask =
1746 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1747 EGL_DRM_BUFFER_USE_SHARE_MESA |
1748 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1749 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1750 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1751 attrs.DRMBufferUseMESA & ~valid_mask);
1752 goto cleanup_img;
1753 }
1754
1755 dri_use = 0;
1756 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1757 dri_use |= __DRI_IMAGE_USE_SHARE;
1758 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1759 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1760 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1761 dri_use |= __DRI_IMAGE_USE_CURSOR;
1762
1763 dri2_img->dri_image =
1764 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1765 attrs.Width, attrs.Height,
1766 format, dri_use, dri2_img);
1767 if (dri2_img->dri_image == NULL) {
1768 err = EGL_BAD_ALLOC;
1769 goto cleanup_img;
1770 }
1771
1772 return &dri2_img->base;
1773
1774 cleanup_img:
1775 free(dri2_img);
1776 _eglError(err, "dri2_create_drm_image_mesa");
1777
1778 return EGL_NO_IMAGE_KHR;
1779 }
1780
1781 static EGLBoolean
1782 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1783 EGLint *name, EGLint *handle, EGLint *stride)
1784 {
1785 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1786 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1787
1788 (void) drv;
1789
1790 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1791 __DRI_IMAGE_ATTRIB_NAME, name)) {
1792 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1793 return EGL_FALSE;
1794 }
1795
1796 if (handle)
1797 dri2_dpy->image->queryImage(dri2_img->dri_image,
1798 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1799
1800 if (stride)
1801 dri2_dpy->image->queryImage(dri2_img->dri_image,
1802 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1803
1804 return EGL_TRUE;
1805 }
1806 #endif
1807
1808 #ifdef HAVE_WAYLAND_PLATFORM
1809
1810 static void
1811 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
1812 struct wl_drm_buffer *buffer)
1813 {
1814 _EGLDisplay *disp = user_data;
1815 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1816 __DRIimage *img;
1817 int i, dri_components = 0;
1818
1819 if (fd == -1)
1820 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
1821 buffer->width,
1822 buffer->height,
1823 buffer->format,
1824 (int*)&name, 1,
1825 buffer->stride,
1826 buffer->offset,
1827 NULL);
1828 else
1829 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
1830 buffer->width,
1831 buffer->height,
1832 buffer->format,
1833 &fd, 1,
1834 buffer->stride,
1835 buffer->offset,
1836 NULL);
1837
1838 if (img == NULL)
1839 return;
1840
1841 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
1842
1843 buffer->driver_format = NULL;
1844 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
1845 if (wl_drm_components[i].dri_components == dri_components)
1846 buffer->driver_format = &wl_drm_components[i];
1847
1848 if (buffer->driver_format == NULL)
1849 dri2_dpy->image->destroyImage(img);
1850 else
1851 buffer->driver_buffer = img;
1852 }
1853
1854 static void
1855 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1856 {
1857 _EGLDisplay *disp = user_data;
1858 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1859
1860 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1861 }
1862
1863 static struct wayland_drm_callbacks wl_drm_callbacks = {
1864 .authenticate = NULL,
1865 .reference_buffer = dri2_wl_reference_buffer,
1866 .release_buffer = dri2_wl_release_buffer
1867 };
1868
1869 static EGLBoolean
1870 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1871 struct wl_display *wl_dpy)
1872 {
1873 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1874 int ret, flags = 0;
1875 uint64_t cap;
1876
1877 (void) drv;
1878
1879 if (dri2_dpy->wl_server_drm)
1880 return EGL_FALSE;
1881
1882 wl_drm_callbacks.authenticate =
1883 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
1884
1885 ret = drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap);
1886 if (ret == 0 && cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
1887 dri2_dpy->image->base.version >= 7 &&
1888 dri2_dpy->image->createImageFromFds != NULL)
1889 flags |= WAYLAND_DRM_PRIME;
1890
1891 dri2_dpy->wl_server_drm =
1892 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1893 &wl_drm_callbacks, disp, flags);
1894
1895 if (!dri2_dpy->wl_server_drm)
1896 return EGL_FALSE;
1897
1898 /* We have to share the wl_drm instance with gbm, so gbm can convert
1899 * wl_buffers to gbm bos. */
1900 if (dri2_dpy->gbm_dri)
1901 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
1902
1903 return EGL_TRUE;
1904 }
1905
1906 static EGLBoolean
1907 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1908 struct wl_display *wl_dpy)
1909 {
1910 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1911
1912 (void) drv;
1913
1914 if (!dri2_dpy->wl_server_drm)
1915 return EGL_FALSE;
1916
1917 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1918 dri2_dpy->wl_server_drm = NULL;
1919
1920 return EGL_TRUE;
1921 }
1922
1923 static EGLBoolean
1924 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1925 struct wl_resource *buffer_resource,
1926 EGLint attribute, EGLint *value)
1927 {
1928 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1929 struct wl_drm_buffer *buffer;
1930 const struct wl_drm_components_descriptor *format;
1931
1932 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
1933 if (!buffer)
1934 return EGL_FALSE;
1935
1936 format = buffer->driver_format;
1937 switch (attribute) {
1938 case EGL_TEXTURE_FORMAT:
1939 *value = format->components;
1940 return EGL_TRUE;
1941 case EGL_WIDTH:
1942 *value = buffer->width;
1943 return EGL_TRUE;
1944 case EGL_HEIGHT:
1945 *value = buffer->height;
1946 return EGL_TRUE;
1947 }
1948
1949 return EGL_FALSE;
1950 }
1951 #endif
1952
1953 static void
1954 dri2_unload(_EGLDriver *drv)
1955 {
1956 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1957
1958 if (dri2_drv->handle)
1959 dlclose(dri2_drv->handle);
1960 free(dri2_drv);
1961 }
1962
1963 static EGLBoolean
1964 dri2_load(_EGLDriver *drv)
1965 {
1966 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1967 #ifdef HAVE_SHARED_GLAPI
1968 #ifdef HAVE_ANDROID_PLATFORM
1969 const char *libname = "libglapi.so";
1970 #else
1971 const char *libname = "libglapi.so.0";
1972 #endif
1973 #else
1974 /*
1975 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1976 * tell which one to load.
1977 */
1978 const char *libname = NULL;
1979 #endif
1980 void *handle;
1981
1982 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1983 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1984 if (handle) {
1985 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1986 dlsym(handle, "_glapi_get_proc_address");
1987 if (!dri2_drv->get_proc_address || !libname) {
1988 /* no need to keep a reference */
1989 dlclose(handle);
1990 handle = NULL;
1991 }
1992 }
1993
1994 /* if glapi is not available, loading DRI drivers will fail */
1995 if (!dri2_drv->get_proc_address) {
1996 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1997 return EGL_FALSE;
1998 }
1999
2000 dri2_drv->glFlush = (void (*)(void))
2001 dri2_drv->get_proc_address("glFlush");
2002
2003 dri2_drv->handle = handle;
2004
2005 return EGL_TRUE;
2006 }
2007
2008 /**
2009 * This is the main entrypoint into the driver, called by libEGL.
2010 * Create a new _EGLDriver object and init its dispatch table.
2011 */
2012 _EGLDriver *
2013 _eglBuiltInDriverDRI2(const char *args)
2014 {
2015 struct dri2_egl_driver *dri2_drv;
2016
2017 (void) args;
2018
2019 dri2_drv = calloc(1, sizeof *dri2_drv);
2020 if (!dri2_drv)
2021 return NULL;
2022
2023 if (!dri2_load(&dri2_drv->base)) {
2024 free(dri2_drv);
2025 return NULL;
2026 }
2027
2028 _eglInitDriverFallbacks(&dri2_drv->base);
2029 dri2_drv->base.API.Initialize = dri2_initialize;
2030 dri2_drv->base.API.Terminate = dri2_terminate;
2031 dri2_drv->base.API.CreateContext = dri2_create_context;
2032 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2033 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2034 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2035 dri2_drv->base.API.WaitClient = dri2_wait_client;
2036 dri2_drv->base.API.WaitNative = dri2_wait_native;
2037 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2038 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2039 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
2040 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2041 #ifdef HAVE_DRM_PLATFORM
2042 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2043 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2044 #endif
2045 #ifdef HAVE_WAYLAND_PLATFORM
2046 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2047 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2048 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2049 #endif
2050
2051 dri2_drv->base.Name = "DRI2";
2052 dri2_drv->base.Unload = dri2_unload;
2053
2054 return &dri2_drv->base;
2055 }