1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include <stdio.h>
31 #include <limits.h>
32 #include <dlfcn.h>
33 #include <fcntl.h>
34 #include <errno.h>
35 #include <unistd.h>
36 #include <xf86drm.h>
37 #include <GL/gl.h>
38 #include <GL/internal/dri_interface.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41
42 #include "egl_dri2.h"
43
44 const __DRIuseInvalidateExtension use_invalidate = {
45 { __DRI_USE_INVALIDATE, 1 }
46 };
47
48 EGLint dri2_to_egl_attribute_map[] = {
49 0,
50 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
51 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
52 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
53 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
54 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
55 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
56 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
57 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
58 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
59 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
60 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
61 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
62 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
63 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
64 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
65 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
66 0, /* __DRI_ATTRIB_RENDER_TYPE, */
67 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
68 0, /* __DRI_ATTRIB_CONFORMANT */
69 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
70 0, /* __DRI_ATTRIB_STEREO */
71 0, /* __DRI_ATTRIB_AUX_BUFFERS */
72 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
73 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
74 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
75 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
76 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
77 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
78 0, /* __DRI_ATTRIB_FLOAT_MODE */
79 0, /* __DRI_ATTRIB_RED_MASK */
80 0, /* __DRI_ATTRIB_GREEN_MASK */
81 0, /* __DRI_ATTRIB_BLUE_MASK */
82 0, /* __DRI_ATTRIB_ALPHA_MASK */
83 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
84 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
85 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
86 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
87 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
88 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
89 0, /* __DRI_ATTRIB_SWAP_METHOD */
90 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
91 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
92 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
93 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
94 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
95 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
96 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
97 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
98 };
99
100 static EGLBoolean
dri2_match_config(const _EGLConfig * conf,const _EGLConfig * criteria)101 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
102 {
103 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
104 return EGL_FALSE;
105
106 if (!_eglMatchConfig(conf, criteria))
107 return EGL_FALSE;
108
109 return EGL_TRUE;
110 }
111
112 struct dri2_egl_config *
dri2_add_config(_EGLDisplay * disp,const __DRIconfig * dri_config,int id,int depth,EGLint surface_type,const EGLint * attr_list,const unsigned int * rgba_masks)113 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
114 int depth, EGLint surface_type, const EGLint *attr_list,
115 const unsigned int *rgba_masks)
116 {
117 struct dri2_egl_config *conf;
118 struct dri2_egl_display *dri2_dpy;
119 _EGLConfig base;
120 unsigned int attrib, value, double_buffer;
121 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
122 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
123 _EGLConfig *matching_config;
124 EGLint num_configs = 0;
125 EGLint config_id;
126 int i;
127
128 dri2_dpy = disp->DriverData;
129 _eglInitConfig(&base, disp, id);
130
131 i = 0;
132 double_buffer = 0;
133 bind_to_texture_rgb = 0;
134 bind_to_texture_rgba = 0;
135
136 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
137 switch (attrib) {
138 case __DRI_ATTRIB_RENDER_TYPE:
139 if (value & __DRI_ATTRIB_RGBA_BIT)
140 value = EGL_RGB_BUFFER;
141 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
142 value = EGL_LUMINANCE_BUFFER;
143 else
144 /* not valid */;
145 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
146 break;
147
148 case __DRI_ATTRIB_CONFIG_CAVEAT:
149 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
150 value = EGL_NON_CONFORMANT_CONFIG;
151 else if (value & __DRI_ATTRIB_SLOW_BIT)
152 value = EGL_SLOW_CONFIG;
153 else
154 value = EGL_NONE;
155 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
156 break;
157
158 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
159 bind_to_texture_rgb = value;
160 break;
161
162 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
163 bind_to_texture_rgba = value;
164 break;
165
166 case __DRI_ATTRIB_DOUBLE_BUFFER:
167 double_buffer = value;
168 break;
169
170 case __DRI_ATTRIB_RED_MASK:
171 dri_masks[0] = value;
172 break;
173
174 case __DRI_ATTRIB_GREEN_MASK:
175 dri_masks[1] = value;
176 break;
177
178 case __DRI_ATTRIB_BLUE_MASK:
179 dri_masks[2] = value;
180 break;
181
182 case __DRI_ATTRIB_ALPHA_MASK:
183 dri_masks[3] = value;
184 break;
185
186 default:
187 key = dri2_to_egl_attribute_map[attrib];
188 if (key != 0)
189 _eglSetConfigKey(&base, key, value);
190 break;
191 }
192 }
193
194 if (attr_list)
195 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
196 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
197
198 if (depth > 0 && depth != base.BufferSize)
199 return NULL;
200
201 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
202 return NULL;
203
204 base.NativeRenderable = EGL_TRUE;
205
206 base.SurfaceType = surface_type;
207 if (surface_type & (EGL_PBUFFER_BIT |
208 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
209 base.BindToTextureRGB = bind_to_texture_rgb;
210 if (base.AlphaSize > 0)
211 base.BindToTextureRGBA = bind_to_texture_rgba;
212 }
213
214 base.RenderableType = disp->ClientAPIs;
215 base.Conformant = disp->ClientAPIs;
216
217 if (!_eglValidateConfig(&base, EGL_FALSE)) {
218 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
219 return NULL;
220 }
221
222 config_id = base.ConfigID;
223 base.ConfigID = EGL_DONT_CARE;
224 base.SurfaceType = EGL_DONT_CARE;
225 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
226 (_EGLArrayForEach) dri2_match_config, &base);
227
228 if (num_configs == 1) {
229 conf = (struct dri2_egl_config *) matching_config;
230
231 if (double_buffer && !conf->dri_double_config)
232 conf->dri_double_config = dri_config;
233 else if (!double_buffer && !conf->dri_single_config)
234 conf->dri_single_config = dri_config;
235 else
236 /* a similar config type is already added (unlikely) => discard */
237 return NULL;
238 }
239 else if (num_configs == 0) {
240 conf = malloc(sizeof *conf);
241 if (conf == NULL)
242 return NULL;
243
244 memcpy(&conf->base, &base, sizeof base);
245 if (double_buffer) {
246 conf->dri_double_config = dri_config;
247 conf->dri_single_config = NULL;
248 } else {
249 conf->dri_single_config = dri_config;
250 conf->dri_double_config = NULL;
251 }
252 conf->base.SurfaceType = 0;
253 conf->base.ConfigID = config_id;
254
255 _eglLinkConfig(&conf->base);
256 }
257 else {
258 assert(0);
259 return NULL;
260 }
261
262 if (double_buffer) {
263 surface_type &= ~EGL_PIXMAP_BIT;
264
265 if (dri2_dpy->swap_available) {
266 conf->base.MinSwapInterval = 0;
267 conf->base.MaxSwapInterval = 1000; /* XXX arbitrary value */
268 }
269 }
270
271 conf->base.SurfaceType |= surface_type;
272
273 return conf;
274 }
275
276 __DRIimage *
dri2_lookup_egl_image(__DRIscreen * screen,void * image,void * data)277 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
278 {
279 _EGLDisplay *disp = data;
280 struct dri2_egl_image *dri2_img;
281 _EGLImage *img;
282
283 (void) screen;
284
285 img = _eglLookupImage(image, disp);
286 if (img == NULL) {
287 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
288 return NULL;
289 }
290
291 dri2_img = dri2_egl_image(image);
292
293 return dri2_img->dri_image;
294 }
295
296 const __DRIimageLookupExtension image_lookup_extension = {
297 { __DRI_IMAGE_LOOKUP, 1 },
298 dri2_lookup_egl_image
299 };
300
301 static const char dri_driver_path[] = DEFAULT_DRIVER_DIR;
302
303 struct dri2_extension_match {
304 const char *name;
305 int version;
306 int offset;
307 };
308
309 static struct dri2_extension_match dri2_driver_extensions[] = {
310 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
311 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
312 { NULL, 0, 0 }
313 };
314
315 static struct dri2_extension_match dri2_core_extensions[] = {
316 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
317 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
318 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
319 { NULL, 0, 0 }
320 };
321
322 static struct dri2_extension_match swrast_driver_extensions[] = {
323 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
324 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
325 { NULL, 0, 0 }
326 };
327
328 static struct dri2_extension_match swrast_core_extensions[] = {
329 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
330 { NULL, 0, 0 }
331 };
332
333 static EGLBoolean
dri2_bind_extensions(struct dri2_egl_display * dri2_dpy,struct dri2_extension_match * matches,const __DRIextension ** extensions)334 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
335 struct dri2_extension_match *matches,
336 const __DRIextension **extensions)
337 {
338 int i, j, ret = EGL_TRUE;
339 void *field;
340
341 for (i = 0; extensions[i]; i++) {
342 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
343 for (j = 0; matches[j].name; j++) {
344 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
345 extensions[i]->version >= matches[j].version) {
346 field = ((char *) dri2_dpy + matches[j].offset);
347 *(const __DRIextension **) field = extensions[i];
348 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
349 extensions[i]->name, extensions[i]->version);
350 }
351 }
352 }
353
354 for (j = 0; matches[j].name; j++) {
355 field = ((char *) dri2_dpy + matches[j].offset);
356 if (*(const __DRIextension **) field == NULL) {
357 _eglLog(_EGL_FATAL, "DRI2: did not find extension %s version %d",
358 matches[j].name, matches[j].version);
359 ret = EGL_FALSE;
360 }
361 }
362
363 return ret;
364 }
365
366 static const __DRIextension **
dri2_open_driver(_EGLDisplay * disp)367 dri2_open_driver(_EGLDisplay *disp)
368 {
369 struct dri2_egl_display *dri2_dpy = disp->DriverData;
370 const __DRIextension **extensions;
371 char path[PATH_MAX], *search_paths, *p, *next, *end;
372
373 search_paths = NULL;
374 if (geteuid() == getuid()) {
375 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
376 search_paths = getenv("LIBGL_DRIVERS_PATH");
377 }
378 if (search_paths == NULL)
379 search_paths = DEFAULT_DRIVER_DIR;
380
381 dri2_dpy->driver = NULL;
382 end = search_paths + strlen(search_paths);
383 for (p = search_paths; p < end && dri2_dpy->driver == NULL; p = next + 1) {
384 int len;
385 next = strchr(p, ':');
386 if (next == NULL)
387 next = end;
388
389 len = next - p;
390 #if GLX_USE_TLS
391 snprintf(path, sizeof path,
392 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
393 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
394 #endif
395 if (dri2_dpy->driver == NULL) {
396 snprintf(path, sizeof path,
397 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
398 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
399 if (dri2_dpy->driver == NULL)
400 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
401 }
402 }
403
404 if (dri2_dpy->driver == NULL) {
405 _eglLog(_EGL_WARNING,
406 "DRI2: failed to open %s (search paths %s)",
407 dri2_dpy->driver_name, search_paths);
408 return NULL;
409 }
410
411 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
412 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
413 if (extensions == NULL) {
414 _eglLog(_EGL_WARNING,
415 "DRI2: driver exports no extensions (%s)", dlerror());
416 dlclose(dri2_dpy->driver);
417 }
418
419 return extensions;
420 }
421
422 EGLBoolean
dri2_load_driver(_EGLDisplay * disp)423 dri2_load_driver(_EGLDisplay *disp)
424 {
425 struct dri2_egl_display *dri2_dpy = disp->DriverData;
426 const __DRIextension **extensions;
427
428 extensions = dri2_open_driver(disp);
429 if (!extensions)
430 return EGL_FALSE;
431
432 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
433 dlclose(dri2_dpy->driver);
434 return EGL_FALSE;
435 }
436
437 return EGL_TRUE;
438 }
439
440 EGLBoolean
dri2_load_driver_swrast(_EGLDisplay * disp)441 dri2_load_driver_swrast(_EGLDisplay *disp)
442 {
443 struct dri2_egl_display *dri2_dpy = disp->DriverData;
444 const __DRIextension **extensions;
445
446 dri2_dpy->driver_name = "swrast";
447 extensions = dri2_open_driver(disp);
448
449 if (!extensions)
450 return EGL_FALSE;
451
452 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
453 dlclose(dri2_dpy->driver);
454 return EGL_FALSE;
455 }
456
457 return EGL_TRUE;
458 }
459
460 void
dri2_setup_screen(_EGLDisplay * disp)461 dri2_setup_screen(_EGLDisplay *disp)
462 {
463 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
464 unsigned int api_mask;
465
466 if (dri2_dpy->dri2) {
467 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
468 } else {
469 assert(dri2_dpy->swrast);
470 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
471 }
472
473 disp->ClientAPIs = 0;
474 if (api_mask & (1 <<__DRI_API_OPENGL))
475 disp->ClientAPIs |= EGL_OPENGL_BIT;
476 if (api_mask & (1 <<__DRI_API_GLES))
477 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
478 if (api_mask & (1 << __DRI_API_GLES2))
479 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
480
481 assert(dri2_dpy->dri2 || dri2_dpy->swrast);
482 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
483
484 if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
485 disp->Extensions.KHR_create_context = EGL_TRUE;
486
487 if (dri2_dpy->robustness)
488 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
489 }
490
491 if (dri2_dpy->image) {
492 disp->Extensions.MESA_drm_image = EGL_TRUE;
493 disp->Extensions.KHR_image_base = EGL_TRUE;
494 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
495 }
496 }
497
498 EGLBoolean
dri2_create_screen(_EGLDisplay * disp)499 dri2_create_screen(_EGLDisplay *disp)
500 {
501 const __DRIextension **extensions;
502 struct dri2_egl_display *dri2_dpy;
503
504 dri2_dpy = disp->DriverData;
505
506 if (dri2_dpy->dri2) {
507 dri2_dpy->dri_screen =
508 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
509 &dri2_dpy->driver_configs, disp);
510 } else {
511 assert(dri2_dpy->swrast);
512 dri2_dpy->dri_screen =
513 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
514 &dri2_dpy->driver_configs, disp);
515 }
516
517 if (dri2_dpy->dri_screen == NULL) {
518 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
519 return EGL_FALSE;
520 }
521
522 dri2_dpy->own_dri_screen = 1;
523
524 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
525
526 if (dri2_dpy->dri2) {
527 unsigned i;
528
529 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
530 goto cleanup_dri_screen;
531
532 for (i = 0; extensions[i]; i++) {
533 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
534 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
535 }
536 }
537 } else {
538 assert(dri2_dpy->swrast);
539 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
540 goto cleanup_dri_screen;
541 }
542
543 dri2_setup_screen(disp);
544
545 return EGL_TRUE;
546
547 cleanup_dri_screen:
548 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
549
550 return EGL_FALSE;
551 }
552
553 /**
554 * Called via eglInitialize(), GLX_drv->API.Initialize().
555 */
556 static EGLBoolean
dri2_initialize(_EGLDriver * drv,_EGLDisplay * disp)557 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
558 {
559 /* not until swrast_dri is supported */
560 if (disp->Options.UseFallback)
561 return EGL_FALSE;
562
563 switch (disp->Platform) {
564 #ifdef HAVE_X11_PLATFORM
565 case _EGL_PLATFORM_X11:
566 if (disp->Options.TestOnly)
567 return EGL_TRUE;
568 return dri2_initialize_x11(drv, disp);
569 #endif
570
571 #ifdef HAVE_LIBUDEV
572 #ifdef HAVE_DRM_PLATFORM
573 case _EGL_PLATFORM_DRM:
574 if (disp->Options.TestOnly)
575 return EGL_TRUE;
576 return dri2_initialize_drm(drv, disp);
577 #endif
578 #ifdef HAVE_WAYLAND_PLATFORM
579 case _EGL_PLATFORM_WAYLAND:
580 if (disp->Options.TestOnly)
581 return EGL_TRUE;
582 return dri2_initialize_wayland(drv, disp);
583 #endif
584 #endif
585 #ifdef HAVE_ANDROID_PLATFORM
586 case _EGL_PLATFORM_ANDROID:
587 if (disp->Options.TestOnly)
588 return EGL_TRUE;
589 return dri2_initialize_android(drv, disp);
590 #endif
591
592 default:
593 return EGL_FALSE;
594 }
595 }
596
597 /**
598 * Called via eglTerminate(), drv->API.Terminate().
599 */
600 static EGLBoolean
dri2_terminate(_EGLDriver * drv,_EGLDisplay * disp)601 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
602 {
603 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
604
605 _eglReleaseDisplayResources(drv, disp);
606 _eglCleanupDisplay(disp);
607
608 if (dri2_dpy->own_dri_screen)
609 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
610 if (dri2_dpy->fd)
611 close(dri2_dpy->fd);
612 if (dri2_dpy->driver)
613 dlclose(dri2_dpy->driver);
614 if (dri2_dpy->device_name)
615 free(dri2_dpy->device_name);
616
617 if (disp->PlatformDisplay == NULL) {
618 switch (disp->Platform) {
619 #ifdef HAVE_X11_PLATFORM
620 case _EGL_PLATFORM_X11:
621 xcb_disconnect(dri2_dpy->conn);
622 break;
623 #endif
624 #ifdef HAVE_DRM_PLATFORM
625 case _EGL_PLATFORM_DRM:
626 if (dri2_dpy->own_device) {
627 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
628 }
629 break;
630 #endif
631 default:
632 break;
633 }
634 }
635
636 free(dri2_dpy);
637 disp->DriverData = NULL;
638
639 return EGL_TRUE;
640 }
641
642 /**
643 * Set the error code after a call to
644 * dri2_egl_display::dri2::createContextAttribs.
645 */
646 static void
dri2_create_context_attribs_error(int dri_error)647 dri2_create_context_attribs_error(int dri_error)
648 {
649 EGLint egl_error;
650
651 switch (dri_error) {
652 case __DRI_CTX_ERROR_SUCCESS:
653 return;
654
655 case __DRI_CTX_ERROR_NO_MEMORY:
656 egl_error = EGL_BAD_ALLOC;
657 break;
658
659 /* From the EGL_KHR_create_context spec, section "Errors":
660 *
661 * * If <config> does not support a client API context compatible
662 * with the requested API major and minor version, [...] context flags,
663 * and context reset notification behavior (for client API types where
664 * these attributes are supported), then an EGL_BAD_MATCH error is
665 * generated.
666 *
667 * * If an OpenGL ES context is requested and the values for
668 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
669 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
670 * is not defined, than an EGL_BAD_MATCH error is generated.
671 *
672 * * If an OpenGL context is requested, the requested version is
673 * greater than 3.2, and the value for attribute
674 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
675 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
676 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
677 * one of these bits set; or if the implementation does not support
678 * the requested profile, then an EGL_BAD_MATCH error is generated.
679 */
680 case __DRI_CTX_ERROR_BAD_API:
681 case __DRI_CTX_ERROR_BAD_VERSION:
682 case __DRI_CTX_ERROR_BAD_FLAG:
683 egl_error = EGL_BAD_MATCH;
684 break;
685
686 /* From the EGL_KHR_create_context spec, section "Errors":
687 *
688 * * If an attribute name or attribute value in <attrib_list> is not
689 * recognized (including unrecognized bits in bitmask attributes),
690 * then an EGL_BAD_ATTRIBUTE error is generated."
691 */
692 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
693 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
694 egl_error = EGL_BAD_ATTRIBUTE;
695 break;
696
697 default:
698 assert(0);
699 egl_error = EGL_BAD_MATCH;
700 break;
701 }
702
703 _eglError(egl_error, "dri2_create_context");
704 }
705
706 /**
707 * Called via eglCreateContext(), drv->API.CreateContext().
708 */
709 static _EGLContext *
dri2_create_context(_EGLDriver * drv,_EGLDisplay * disp,_EGLConfig * conf,_EGLContext * share_list,const EGLint * attrib_list)710 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
711 _EGLContext *share_list, const EGLint *attrib_list)
712 {
713 struct dri2_egl_context *dri2_ctx;
714 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
715 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
716 __DRIcontext *shared =
717 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
718 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
719 const __DRIconfig *dri_config;
720 int api;
721
722 (void) drv;
723
724 dri2_ctx = malloc(sizeof *dri2_ctx);
725 if (!dri2_ctx) {
726 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
727 return NULL;
728 }
729
730 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
731 goto cleanup;
732
733 switch (dri2_ctx->base.ClientAPI) {
734 case EGL_OPENGL_ES_API:
735 switch (dri2_ctx->base.ClientMajorVersion) {
736 case 1:
737 api = __DRI_API_GLES;
738 break;
739 case 2:
740 case 3:
741 api = __DRI_API_GLES2;
742 break;
743 default:
744 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
745 return NULL;
746 }
747 break;
748 case EGL_OPENGL_API:
749 if ((dri2_ctx->base.ClientMajorVersion >= 4
750 || (dri2_ctx->base.ClientMajorVersion == 3
751 && dri2_ctx->base.ClientMinorVersion >= 2))
752 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
753 api = __DRI_API_OPENGL_CORE;
754 else
755 api = __DRI_API_OPENGL;
756 break;
757 default:
758 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
759 return NULL;
760 }
761
762 if (conf != NULL) {
763 /* The config chosen here isn't necessarily
764 * used for surfaces later.
765 * A pixmap surface will use the single config.
766 * This opportunity depends on disabling the
767 * doubleBufferMode check in
768 * src/mesa/main/context.c:check_compatible()
769 */
770 if (dri2_config->dri_double_config)
771 dri_config = dri2_config->dri_double_config;
772 else
773 dri_config = dri2_config->dri_single_config;
774
775 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
776 * makes sure the back buffer will always be used.
777 */
778 if (conf->SurfaceType & EGL_WINDOW_BIT)
779 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
780 }
781 else
782 dri_config = NULL;
783
784 if (dri2_dpy->dri2) {
785 if (dri2_dpy->dri2->base.version >= 3) {
786 unsigned error;
787 unsigned num_attribs = 0;
788 uint32_t ctx_attribs[8];
789
790 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
791 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMajorVersion;
792 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
793 ctx_attribs[num_attribs++] = dri2_ctx->base.ClientMinorVersion;
794
795 if (dri2_ctx->base.Flags != 0) {
796 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
797 * extension, don't even try to send it the robust-access flag.
798 * It may explode. Instead, generate the required EGL error here.
799 */
800 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
801 && !dri2_dpy->robustness) {
802 _eglError(EGL_BAD_MATCH, "eglCreateContext");
803 goto cleanup;
804 }
805
806 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_FLAGS;
807 ctx_attribs[num_attribs++] = dri2_ctx->base.Flags;
808 }
809
810 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
811 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
812 * extension, don't even try to send it a reset strategy. It may
813 * explode. Instead, generate the required EGL error here.
814 */
815 if (!dri2_dpy->robustness) {
816 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
817 goto cleanup;
818 }
819
820 ctx_attribs[num_attribs++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
821 ctx_attribs[num_attribs++] = __DRI_CTX_RESET_LOSE_CONTEXT;
822 }
823
824 assert(num_attribs <= ARRAY_SIZE(ctx_attribs));
825
826 dri2_ctx->dri_context =
827 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
828 api,
829 dri_config,
830 shared,
831 num_attribs / 2,
832 ctx_attribs,
833 & error,
834 dri2_ctx);
835 dri2_create_context_attribs_error(error);
836 } else {
837 dri2_ctx->dri_context =
838 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
839 api,
840 dri_config,
841 shared,
842 dri2_ctx);
843 }
844 } else {
845 assert(dri2_dpy->swrast);
846 dri2_ctx->dri_context =
847 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
848 api,
849 dri_config,
850 shared,
851 dri2_ctx);
852 }
853
854 if (!dri2_ctx->dri_context)
855 goto cleanup;
856
857 return &dri2_ctx->base;
858
859 cleanup:
860 free(dri2_ctx);
861 return NULL;
862 }
863
864 /**
865 * Called via eglDestroyContext(), drv->API.DestroyContext().
866 */
867 static EGLBoolean
dri2_destroy_context(_EGLDriver * drv,_EGLDisplay * disp,_EGLContext * ctx)868 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
869 {
870 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
871 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
872
873 if (_eglPutContext(ctx)) {
874 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
875 free(dri2_ctx);
876 }
877
878 return EGL_TRUE;
879 }
880
881 /**
882 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
883 */
884 static EGLBoolean
dri2_make_current(_EGLDriver * drv,_EGLDisplay * disp,_EGLSurface * dsurf,_EGLSurface * rsurf,_EGLContext * ctx)885 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
886 _EGLSurface *rsurf, _EGLContext *ctx)
887 {
888 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
889 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
890 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
891 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
892 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
893 _EGLContext *old_ctx;
894 _EGLSurface *old_dsurf, *old_rsurf;
895 __DRIdrawable *ddraw, *rdraw;
896 __DRIcontext *cctx;
897
898 /* make new bindings */
899 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
900 return EGL_FALSE;
901
902 /* flush before context switch */
903 if (old_ctx && dri2_drv->glFlush)
904 dri2_drv->glFlush();
905
906 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
907 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
908 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
909
910 if (old_ctx) {
911 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
912 dri2_dpy->core->unbindContext(old_cctx);
913 }
914
915 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
916 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
917 if (old_dsurf)
918 drv->API.DestroySurface(drv, disp, old_dsurf);
919 if (old_rsurf)
920 drv->API.DestroySurface(drv, disp, old_rsurf);
921 if (old_ctx)
922 drv->API.DestroyContext(drv, disp, old_ctx);
923
924 return EGL_TRUE;
925 } else {
926 /* undo the previous _eglBindContext */
927 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
928 assert(&dri2_ctx->base == ctx &&
929 &dri2_dsurf->base == dsurf &&
930 &dri2_rsurf->base == rsurf);
931
932 _eglPutSurface(dsurf);
933 _eglPutSurface(rsurf);
934 _eglPutContext(ctx);
935
936 _eglPutSurface(old_dsurf);
937 _eglPutSurface(old_rsurf);
938 _eglPutContext(old_ctx);
939
940 return EGL_FALSE;
941 }
942 }
943
944 /*
945 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
946 */
947 static _EGLProc
dri2_get_proc_address(_EGLDriver * drv,const char * procname)948 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
949 {
950 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
951
952 return dri2_drv->get_proc_address(procname);
953 }
954
955 static EGLBoolean
dri2_wait_client(_EGLDriver * drv,_EGLDisplay * disp,_EGLContext * ctx)956 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
957 {
958 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
959 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
960
961 (void) drv;
962
963 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
964 * we need to copy fake to real here.*/
965
966 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
967
968 return EGL_TRUE;
969 }
970
971 static EGLBoolean
dri2_wait_native(_EGLDriver * drv,_EGLDisplay * disp,EGLint engine)972 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
973 {
974 (void) drv;
975 (void) disp;
976
977 if (engine != EGL_CORE_NATIVE_ENGINE)
978 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
979 /* glXWaitX(); */
980
981 return EGL_TRUE;
982 }
983
984 static EGLBoolean
dri2_bind_tex_image(_EGLDriver * drv,_EGLDisplay * disp,_EGLSurface * surf,EGLint buffer)985 dri2_bind_tex_image(_EGLDriver *drv,
986 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
987 {
988 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
989 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
990 struct dri2_egl_context *dri2_ctx;
991 _EGLContext *ctx;
992 GLint format, target;
993
994 ctx = _eglGetCurrentContext();
995 dri2_ctx = dri2_egl_context(ctx);
996
997 if (!_eglBindTexImage(drv, disp, surf, buffer))
998 return EGL_FALSE;
999
1000 switch (dri2_surf->base.TextureFormat) {
1001 case EGL_TEXTURE_RGB:
1002 format = __DRI_TEXTURE_FORMAT_RGB;
1003 break;
1004 case EGL_TEXTURE_RGBA:
1005 format = __DRI_TEXTURE_FORMAT_RGBA;
1006 break;
1007 default:
1008 assert(0);
1009 }
1010
1011 switch (dri2_surf->base.TextureTarget) {
1012 case EGL_TEXTURE_2D:
1013 target = GL_TEXTURE_2D;
1014 break;
1015 default:
1016 assert(0);
1017 }
1018
1019 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1020 target, format,
1021 dri2_surf->dri_drawable);
1022
1023 return EGL_TRUE;
1024 }
1025
1026 static EGLBoolean
dri2_release_tex_image(_EGLDriver * drv,_EGLDisplay * disp,_EGLSurface * surf,EGLint buffer)1027 dri2_release_tex_image(_EGLDriver *drv,
1028 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1029 {
1030 #if __DRI_TEX_BUFFER_VERSION >= 3
1031 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1032 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1033 struct dri2_egl_context *dri2_ctx;
1034 _EGLContext *ctx;
1035 GLint target;
1036
1037 ctx = _eglGetCurrentContext();
1038 dri2_ctx = dri2_egl_context(ctx);
1039
1040 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1041 return EGL_FALSE;
1042
1043 switch (dri2_surf->base.TextureTarget) {
1044 case EGL_TEXTURE_2D:
1045 target = GL_TEXTURE_2D;
1046 break;
1047 default:
1048 assert(0);
1049 }
1050 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
1051 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1052 target,
1053 dri2_surf->dri_drawable);
1054 #endif
1055
1056 return EGL_TRUE;
1057 }
1058
1059 static _EGLImage *
dri2_create_image(_EGLDisplay * disp,__DRIimage * dri_image)1060 dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
1061 {
1062 struct dri2_egl_image *dri2_img;
1063
1064 if (dri_image == NULL) {
1065 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1066 return NULL;
1067 }
1068
1069 dri2_img = malloc(sizeof *dri2_img);
1070 if (!dri2_img) {
1071 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1072 return NULL;
1073 }
1074
1075 if (!_eglInitImage(&dri2_img->base, disp)) {
1076 free(dri2_img);
1077 return NULL;
1078 }
1079
1080 dri2_img->dri_image = dri_image;
1081
1082 return &dri2_img->base;
1083 }
1084
1085 static _EGLImage *
dri2_create_image_khr_renderbuffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)1086 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1087 EGLClientBuffer buffer,
1088 const EGLint *attr_list)
1089 {
1090 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1091 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1092 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1093 __DRIimage *dri_image;
1094
1095 if (renderbuffer == 0) {
1096 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1097 return EGL_NO_IMAGE_KHR;
1098 }
1099
1100 dri_image =
1101 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1102 renderbuffer, NULL);
1103
1104 return dri2_create_image(disp, dri_image);
1105 }
1106
1107 static _EGLImage *
dri2_create_image_mesa_drm_buffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)1108 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1109 EGLClientBuffer buffer, const EGLint *attr_list)
1110 {
1111 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1112 EGLint format, name, pitch, err;
1113 _EGLImageAttribs attrs;
1114 __DRIimage *dri_image;
1115
1116 name = (EGLint) (uintptr_t) buffer;
1117
1118 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1119 if (err != EGL_SUCCESS)
1120 return NULL;
1121
1122 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1123 attrs.DRMBufferStrideMESA <= 0) {
1124 _eglError(EGL_BAD_PARAMETER,
1125 "bad width, height or stride");
1126 return NULL;
1127 }
1128
1129 switch (attrs.DRMBufferFormatMESA) {
1130 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1131 format = __DRI_IMAGE_FORMAT_ARGB8888;
1132 pitch = attrs.DRMBufferStrideMESA;
1133 break;
1134 default:
1135 _eglError(EGL_BAD_PARAMETER,
1136 "dri2_create_image_khr: unsupported pixmap depth");
1137 return NULL;
1138 }
1139
1140 dri_image =
1141 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1142 attrs.Width,
1143 attrs.Height,
1144 format,
1145 name,
1146 pitch,
1147 NULL);
1148
1149 return dri2_create_image(disp, dri_image);
1150 }
1151
1152 #ifdef HAVE_WAYLAND_PLATFORM
1153
1154 /* This structure describes how a wl_buffer maps to one or more
1155 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1156 * offsets and strides of the planes in the buffer. This table maps a
1157 * wl_drm format code to a description of the planes in the buffer
1158 * that lets us create a __DRIimage for each of the planes. */
1159
1160 static const struct wl_drm_components_descriptor {
1161 uint32_t dri_components;
1162 EGLint components;
1163 int nplanes;
1164 } wl_drm_components[] = {
1165 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1166 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1167 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1168 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1169 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1170 };
1171
1172 static _EGLImage *
dri2_create_image_wayland_wl_buffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer _buffer,const EGLint * attr_list)1173 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1174 EGLClientBuffer _buffer,
1175 const EGLint *attr_list)
1176 {
1177 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1178 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1179 const struct wl_drm_components_descriptor *f;
1180 __DRIimage *dri_image;
1181 _EGLImageAttribs attrs;
1182 EGLint err;
1183 int32_t plane;
1184
1185 if (!wayland_buffer_is_drm(&buffer->buffer))
1186 return NULL;
1187
1188 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1189 plane = attrs.PlaneWL;
1190 if (err != EGL_SUCCESS) {
1191 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1192 return NULL;
1193 }
1194
1195 f = buffer->driver_format;
1196 if (plane < 0 || plane >= f->nplanes) {
1197 _eglError(EGL_BAD_PARAMETER,
1198 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1199 return NULL;
1200 }
1201
1202 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1203
1204 if (dri_image == NULL) {
1205 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1206 return NULL;
1207 }
1208
1209 return dri2_create_image(disp, dri_image);
1210 }
1211 #endif
1212
1213 _EGLImage *
dri2_create_image_khr(_EGLDriver * drv,_EGLDisplay * disp,_EGLContext * ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attr_list)1214 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1215 _EGLContext *ctx, EGLenum target,
1216 EGLClientBuffer buffer, const EGLint *attr_list)
1217 {
1218 (void) drv;
1219
1220 switch (target) {
1221 case EGL_GL_RENDERBUFFER_KHR:
1222 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1223 case EGL_DRM_BUFFER_MESA:
1224 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1225 #ifdef HAVE_WAYLAND_PLATFORM
1226 case EGL_WAYLAND_BUFFER_WL:
1227 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1228 #endif
1229 default:
1230 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1231 return EGL_NO_IMAGE_KHR;
1232 }
1233 }
1234
1235 static EGLBoolean
dri2_destroy_image_khr(_EGLDriver * drv,_EGLDisplay * disp,_EGLImage * image)1236 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1237 {
1238 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1239 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1240
1241 (void) drv;
1242
1243 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1244 free(dri2_img);
1245
1246 return EGL_TRUE;
1247 }
1248
1249 static _EGLImage *
dri2_create_drm_image_mesa(_EGLDriver * drv,_EGLDisplay * disp,const EGLint * attr_list)1250 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1251 const EGLint *attr_list)
1252 {
1253 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1254 struct dri2_egl_image *dri2_img;
1255 _EGLImageAttribs attrs;
1256 unsigned int dri_use, valid_mask;
1257 int format;
1258 EGLint err = EGL_SUCCESS;
1259
1260 (void) drv;
1261
1262 dri2_img = malloc(sizeof *dri2_img);
1263 if (!dri2_img) {
1264 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1265 return EGL_NO_IMAGE_KHR;
1266 }
1267
1268 if (!attr_list) {
1269 err = EGL_BAD_PARAMETER;
1270 goto cleanup_img;
1271 }
1272
1273 if (!_eglInitImage(&dri2_img->base, disp)) {
1274 err = EGL_BAD_PARAMETER;
1275 goto cleanup_img;
1276 }
1277
1278 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1279 if (err != EGL_SUCCESS)
1280 goto cleanup_img;
1281
1282 if (attrs.Width <= 0 || attrs.Height <= 0) {
1283 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1284 attrs.Width, attrs.Height);
1285 goto cleanup_img;
1286 }
1287
1288 switch (attrs.DRMBufferFormatMESA) {
1289 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1290 format = __DRI_IMAGE_FORMAT_ARGB8888;
1291 break;
1292 default:
1293 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1294 attrs.DRMBufferFormatMESA);
1295 goto cleanup_img;
1296 }
1297
1298 valid_mask =
1299 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1300 EGL_DRM_BUFFER_USE_SHARE_MESA |
1301 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1302 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1303 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1304 attrs.DRMBufferUseMESA & ~valid_mask);
1305 goto cleanup_img;
1306 }
1307
1308 dri_use = 0;
1309 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1310 dri_use |= __DRI_IMAGE_USE_SHARE;
1311 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1312 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1313 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1314 dri_use |= __DRI_IMAGE_USE_CURSOR;
1315
1316 dri2_img->dri_image =
1317 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1318 attrs.Width, attrs.Height,
1319 format, dri_use, dri2_img);
1320 if (dri2_img->dri_image == NULL) {
1321 err = EGL_BAD_ALLOC;
1322 goto cleanup_img;
1323 }
1324
1325 return &dri2_img->base;
1326
1327 cleanup_img:
1328 free(dri2_img);
1329 _eglError(err, "dri2_create_drm_image_mesa");
1330
1331 return EGL_NO_IMAGE_KHR;
1332 }
1333
1334 static EGLBoolean
dri2_export_drm_image_mesa(_EGLDriver * drv,_EGLDisplay * disp,_EGLImage * img,EGLint * name,EGLint * handle,EGLint * stride)1335 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1336 EGLint *name, EGLint *handle, EGLint *stride)
1337 {
1338 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1339 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1340
1341 (void) drv;
1342
1343 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1344 __DRI_IMAGE_ATTRIB_NAME, name)) {
1345 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1346 return EGL_FALSE;
1347 }
1348
1349 if (handle)
1350 dri2_dpy->image->queryImage(dri2_img->dri_image,
1351 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1352
1353 if (stride)
1354 dri2_dpy->image->queryImage(dri2_img->dri_image,
1355 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1356
1357 return EGL_TRUE;
1358 }
1359
1360 #ifdef HAVE_WAYLAND_PLATFORM
1361
1362 static void
dri2_wl_reference_buffer(void * user_data,uint32_t name,struct wl_drm_buffer * buffer)1363 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1364 struct wl_drm_buffer *buffer)
1365 {
1366 _EGLDisplay *disp = user_data;
1367 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1368 __DRIimage *img;
1369 int i, dri_components = 0;
1370
1371 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
1372 buffer->buffer.width,
1373 buffer->buffer.height,
1374 buffer->format, (int*)&name, 1,
1375 buffer->stride,
1376 buffer->offset,
1377 NULL);
1378
1379 if (img == NULL)
1380 return;
1381
1382 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
1383
1384 buffer->driver_format = NULL;
1385 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
1386 if (wl_drm_components[i].dri_components == dri_components)
1387 buffer->driver_format = &wl_drm_components[i];
1388
1389 if (buffer->driver_format == NULL)
1390 dri2_dpy->image->destroyImage(img);
1391 else
1392 buffer->driver_buffer = img;
1393 }
1394
1395 static void
dri2_wl_release_buffer(void * user_data,struct wl_drm_buffer * buffer)1396 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1397 {
1398 _EGLDisplay *disp = user_data;
1399 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1400
1401 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1402 }
1403
1404 static struct wayland_drm_callbacks wl_drm_callbacks = {
1405 .authenticate = NULL,
1406 .reference_buffer = dri2_wl_reference_buffer,
1407 .release_buffer = dri2_wl_release_buffer
1408 };
1409
1410 static EGLBoolean
dri2_bind_wayland_display_wl(_EGLDriver * drv,_EGLDisplay * disp,struct wl_display * wl_dpy)1411 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1412 struct wl_display *wl_dpy)
1413 {
1414 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1415
1416 (void) drv;
1417
1418 if (dri2_dpy->wl_server_drm)
1419 return EGL_FALSE;
1420
1421 wl_drm_callbacks.authenticate =
1422 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1423
1424 dri2_dpy->wl_server_drm =
1425 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1426 &wl_drm_callbacks, disp);
1427
1428 if (!dri2_dpy->wl_server_drm)
1429 return EGL_FALSE;
1430
1431 return EGL_TRUE;
1432 }
1433
1434 static EGLBoolean
dri2_unbind_wayland_display_wl(_EGLDriver * drv,_EGLDisplay * disp,struct wl_display * wl_dpy)1435 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1436 struct wl_display *wl_dpy)
1437 {
1438 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1439
1440 (void) drv;
1441
1442 if (!dri2_dpy->wl_server_drm)
1443 return EGL_FALSE;
1444
1445 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1446 dri2_dpy->wl_server_drm = NULL;
1447
1448 return EGL_TRUE;
1449 }
1450
1451 static EGLBoolean
dri2_query_wayland_buffer_wl(_EGLDriver * drv,_EGLDisplay * disp,struct wl_buffer * _buffer,EGLint attribute,EGLint * value)1452 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1453 struct wl_buffer *_buffer,
1454 EGLint attribute, EGLint *value)
1455 {
1456 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1457 const struct wl_drm_components_descriptor *format;
1458
1459 if (!wayland_buffer_is_drm(&buffer->buffer))
1460 return EGL_FALSE;
1461
1462 format = buffer->driver_format;
1463 switch (attribute) {
1464 case EGL_TEXTURE_FORMAT:
1465 *value = format->components;
1466 return EGL_TRUE;
1467 case EGL_WIDTH:
1468 *value = buffer->buffer.width;
1469 break;
1470 case EGL_HEIGHT:
1471 *value = buffer->buffer.height;
1472 break;
1473 }
1474
1475 return EGL_FALSE;
1476 }
1477 #endif
1478
1479 static void
dri2_unload(_EGLDriver * drv)1480 dri2_unload(_EGLDriver *drv)
1481 {
1482 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1483
1484 if (dri2_drv->handle)
1485 dlclose(dri2_drv->handle);
1486 free(dri2_drv);
1487 }
1488
1489 static EGLBoolean
dri2_load(_EGLDriver * drv)1490 dri2_load(_EGLDriver *drv)
1491 {
1492 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1493 #ifdef HAVE_SHARED_GLAPI
1494 #ifdef HAVE_ANDROID_PLATFORM
1495 const char *libname = "libglapi.so";
1496 #else
1497 const char *libname = "libglapi.so.0";
1498 #endif
1499 #else
1500 /*
1501 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1502 * tell which one to load.
1503 */
1504 const char *libname = NULL;
1505 #endif
1506 void *handle;
1507
1508 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1509 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1510 if (handle) {
1511 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1512 dlsym(handle, "_glapi_get_proc_address");
1513 if (!dri2_drv->get_proc_address || !libname) {
1514 /* no need to keep a reference */
1515 dlclose(handle);
1516 handle = NULL;
1517 }
1518 }
1519
1520 /* if glapi is not available, loading DRI drivers will fail */
1521 if (!dri2_drv->get_proc_address) {
1522 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1523 return EGL_FALSE;
1524 }
1525
1526 dri2_drv->glFlush = (void (*)(void))
1527 dri2_drv->get_proc_address("glFlush");
1528
1529 dri2_drv->handle = handle;
1530
1531 return EGL_TRUE;
1532 }
1533
1534 /**
1535 * This is the main entrypoint into the driver, called by libEGL.
1536 * Create a new _EGLDriver object and init its dispatch table.
1537 */
1538 _EGLDriver *
_eglBuiltInDriverDRI2(const char * args)1539 _eglBuiltInDriverDRI2(const char *args)
1540 {
1541 struct dri2_egl_driver *dri2_drv;
1542
1543 (void) args;
1544
1545 dri2_drv = malloc(sizeof *dri2_drv);
1546 if (!dri2_drv)
1547 return NULL;
1548
1549 memset(dri2_drv, 0, sizeof *dri2_drv);
1550
1551 if (!dri2_load(&dri2_drv->base)) {
1552 free(dri2_drv);
1553 return NULL;
1554 }
1555
1556 _eglInitDriverFallbacks(&dri2_drv->base);
1557 dri2_drv->base.API.Initialize = dri2_initialize;
1558 dri2_drv->base.API.Terminate = dri2_terminate;
1559 dri2_drv->base.API.CreateContext = dri2_create_context;
1560 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
1561 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1562 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1563 dri2_drv->base.API.WaitClient = dri2_wait_client;
1564 dri2_drv->base.API.WaitNative = dri2_wait_native;
1565 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1566 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1567 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1568 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1569 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1570 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1571 #ifdef HAVE_WAYLAND_PLATFORM
1572 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1573 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1574 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
1575 #endif
1576
1577 dri2_drv->base.Name = "DRI2";
1578 dri2_drv->base.Unload = dri2_unload;
1579
1580 return &dri2_drv->base;
1581 }
1582