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egl_dri2: Remove swrast version >= 2 checks
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #include <stdlib.h>
29 #include <string.h>
30 #include <stdio.h>
31 #include <limits.h>
32 #include <dlfcn.h>
33 #include <fcntl.h>
34 #include <errno.h>
35 #include <unistd.h>
36 #include <xf86drm.h>
37 #include <GL/gl.h>
38 #include <GL/internal/dri_interface.h>
39 #include <sys/types.h>
40 #include <sys/stat.h>
41
42 #include "egl_dri2.h"
43
44 const __DRIuseInvalidateExtension use_invalidate = {
45 { __DRI_USE_INVALIDATE, 1 }
46 };
47
48 EGLint dri2_to_egl_attribute_map[] = {
49 0,
50 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
51 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
52 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
53 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
54 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
55 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
56 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
57 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
58 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
59 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
60 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
61 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
62 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
63 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
64 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
65 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
66 0, /* __DRI_ATTRIB_RENDER_TYPE, */
67 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
68 0, /* __DRI_ATTRIB_CONFORMANT */
69 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
70 0, /* __DRI_ATTRIB_STEREO */
71 0, /* __DRI_ATTRIB_AUX_BUFFERS */
72 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
73 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
74 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
75 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
76 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
77 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
78 0, /* __DRI_ATTRIB_FLOAT_MODE */
79 0, /* __DRI_ATTRIB_RED_MASK */
80 0, /* __DRI_ATTRIB_GREEN_MASK */
81 0, /* __DRI_ATTRIB_BLUE_MASK */
82 0, /* __DRI_ATTRIB_ALPHA_MASK */
83 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
84 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
85 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
86 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
87 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
88 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
89 0, /* __DRI_ATTRIB_SWAP_METHOD */
90 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
91 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
92 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
93 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
94 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
95 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
96 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
97 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
98 };
99
100 static EGLBoolean
101 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
102 {
103 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
104 return EGL_FALSE;
105
106 if (!_eglMatchConfig(conf, criteria))
107 return EGL_FALSE;
108
109 return EGL_TRUE;
110 }
111
112 struct dri2_egl_config *
113 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
114 int depth, EGLint surface_type, const EGLint *attr_list,
115 const unsigned int *rgba_masks)
116 {
117 struct dri2_egl_config *conf;
118 struct dri2_egl_display *dri2_dpy;
119 _EGLConfig base;
120 unsigned int attrib, value, double_buffer;
121 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
122 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
123 _EGLConfig *matching_config;
124 EGLint num_configs = 0;
125 EGLint config_id;
126 int i;
127
128 dri2_dpy = disp->DriverData;
129 _eglInitConfig(&base, disp, id);
130
131 i = 0;
132 double_buffer = 0;
133 bind_to_texture_rgb = 0;
134 bind_to_texture_rgba = 0;
135
136 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
137 switch (attrib) {
138 case __DRI_ATTRIB_RENDER_TYPE:
139 if (value & __DRI_ATTRIB_RGBA_BIT)
140 value = EGL_RGB_BUFFER;
141 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
142 value = EGL_LUMINANCE_BUFFER;
143 else
144 /* not valid */;
145 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
146 break;
147
148 case __DRI_ATTRIB_CONFIG_CAVEAT:
149 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
150 value = EGL_NON_CONFORMANT_CONFIG;
151 else if (value & __DRI_ATTRIB_SLOW_BIT)
152 value = EGL_SLOW_CONFIG;
153 else
154 value = EGL_NONE;
155 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
156 break;
157
158 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
159 bind_to_texture_rgb = value;
160 break;
161
162 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
163 bind_to_texture_rgba = value;
164 break;
165
166 case __DRI_ATTRIB_DOUBLE_BUFFER:
167 double_buffer = value;
168 break;
169
170 case __DRI_ATTRIB_RED_MASK:
171 dri_masks[0] = value;
172 break;
173
174 case __DRI_ATTRIB_GREEN_MASK:
175 dri_masks[1] = value;
176 break;
177
178 case __DRI_ATTRIB_BLUE_MASK:
179 dri_masks[2] = value;
180 break;
181
182 case __DRI_ATTRIB_ALPHA_MASK:
183 dri_masks[3] = value;
184 break;
185
186 default:
187 key = dri2_to_egl_attribute_map[attrib];
188 if (key != 0)
189 _eglSetConfigKey(&base, key, value);
190 break;
191 }
192 }
193
194 if (attr_list)
195 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
196 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
197
198 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 *
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, 1, 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 }
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 }
331 };
332
333 static EGLBoolean
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 **
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
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
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
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 if (dri2_dpy->dri2->base.version >= 2)
468 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
469 else
470 api_mask = 1 << __DRI_API_OPENGL;
471 } else {
472 assert(dri2_dpy->swrast);
473 api_mask = 1 << __DRI_API_OPENGL | 1 << __DRI_API_GLES | 1 << __DRI_API_GLES2;
474 }
475
476 disp->ClientAPIs = 0;
477 if (api_mask & (1 <<__DRI_API_OPENGL))
478 disp->ClientAPIs |= EGL_OPENGL_BIT;
479 if (api_mask & (1 <<__DRI_API_GLES))
480 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
481 if (api_mask & (1 << __DRI_API_GLES2))
482 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
483
484 if (dri2_dpy->dri2) {
485 if (dri2_dpy->dri2->base.version >= 2) {
486 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
487 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
488 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
489 }
490 } else {
491 assert(dri2_dpy->swrast);
492 disp->Extensions.KHR_surfaceless_gles1 = EGL_TRUE;
493 disp->Extensions.KHR_surfaceless_gles2 = EGL_TRUE;
494 disp->Extensions.KHR_surfaceless_opengl = EGL_TRUE;
495 }
496
497 if (dri2_dpy->image) {
498 disp->Extensions.MESA_drm_image = EGL_TRUE;
499 disp->Extensions.KHR_image_base = EGL_TRUE;
500 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
501 }
502 }
503
504 EGLBoolean
505 dri2_create_screen(_EGLDisplay *disp)
506 {
507 const __DRIextension **extensions;
508 struct dri2_egl_display *dri2_dpy;
509
510 dri2_dpy = disp->DriverData;
511
512 if (dri2_dpy->dri2) {
513 dri2_dpy->dri_screen =
514 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd, dri2_dpy->extensions,
515 &dri2_dpy->driver_configs, disp);
516 } else {
517 assert(dri2_dpy->swrast);
518 dri2_dpy->dri_screen =
519 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
520 &dri2_dpy->driver_configs, disp);
521 }
522
523 if (dri2_dpy->dri_screen == NULL) {
524 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
525 return EGL_FALSE;
526 }
527
528 dri2_dpy->own_dri_screen = 1;
529
530 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
531
532 if (dri2_dpy->dri2) {
533 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
534 goto cleanup_dri_screen;
535 } else {
536 assert(dri2_dpy->swrast);
537 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
538 goto cleanup_dri_screen;
539 }
540
541 dri2_setup_screen(disp);
542
543 return EGL_TRUE;
544
545 cleanup_dri_screen:
546 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
547
548 return EGL_FALSE;
549 }
550
551 /**
552 * Called via eglInitialize(), GLX_drv->API.Initialize().
553 */
554 static EGLBoolean
555 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
556 {
557 /* not until swrast_dri is supported */
558 if (disp->Options.UseFallback)
559 return EGL_FALSE;
560
561 switch (disp->Platform) {
562 #ifdef HAVE_X11_PLATFORM
563 case _EGL_PLATFORM_X11:
564 if (disp->Options.TestOnly)
565 return EGL_TRUE;
566 return dri2_initialize_x11(drv, disp);
567 #endif
568
569 #ifdef HAVE_LIBUDEV
570 #ifdef HAVE_DRM_PLATFORM
571 case _EGL_PLATFORM_DRM:
572 if (disp->Options.TestOnly)
573 return EGL_TRUE;
574 return dri2_initialize_drm(drv, disp);
575 #endif
576 #ifdef HAVE_WAYLAND_PLATFORM
577 case _EGL_PLATFORM_WAYLAND:
578 if (disp->Options.TestOnly)
579 return EGL_TRUE;
580 return dri2_initialize_wayland(drv, disp);
581 #endif
582 #endif
583 #ifdef HAVE_ANDROID_PLATFORM
584 case _EGL_PLATFORM_ANDROID:
585 if (disp->Options.TestOnly)
586 return EGL_TRUE;
587 return dri2_initialize_android(drv, disp);
588 #endif
589
590 default:
591 return EGL_FALSE;
592 }
593 }
594
595 /**
596 * Called via eglTerminate(), drv->API.Terminate().
597 */
598 static EGLBoolean
599 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
600 {
601 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
602
603 _eglReleaseDisplayResources(drv, disp);
604 _eglCleanupDisplay(disp);
605
606 if (dri2_dpy->own_dri_screen)
607 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
608 if (dri2_dpy->fd)
609 close(dri2_dpy->fd);
610 if (dri2_dpy->driver)
611 dlclose(dri2_dpy->driver);
612 if (dri2_dpy->device_name)
613 free(dri2_dpy->device_name);
614
615 if (disp->PlatformDisplay == NULL) {
616 switch (disp->Platform) {
617 #ifdef HAVE_X11_PLATFORM
618 case _EGL_PLATFORM_X11:
619 xcb_disconnect(dri2_dpy->conn);
620 break;
621 #endif
622 #ifdef HAVE_DRM_PLATFORM
623 case _EGL_PLATFORM_DRM:
624 if (dri2_dpy->own_device) {
625 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
626 }
627 break;
628 #endif
629 default:
630 break;
631 }
632 }
633
634 free(dri2_dpy);
635 disp->DriverData = NULL;
636
637 return EGL_TRUE;
638 }
639
640
641 /**
642 * Called via eglCreateContext(), drv->API.CreateContext().
643 */
644 static _EGLContext *
645 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
646 _EGLContext *share_list, const EGLint *attrib_list)
647 {
648 struct dri2_egl_context *dri2_ctx;
649 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
650 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
651 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
652 const __DRIconfig *dri_config;
653 int api;
654
655 (void) drv;
656
657 dri2_ctx = malloc(sizeof *dri2_ctx);
658 if (!dri2_ctx) {
659 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
660 return NULL;
661 }
662
663 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
664 goto cleanup;
665
666 switch (dri2_ctx->base.ClientAPI) {
667 case EGL_OPENGL_ES_API:
668 switch (dri2_ctx->base.ClientVersion) {
669 case 1:
670 api = __DRI_API_GLES;
671 break;
672 case 2:
673 api = __DRI_API_GLES2;
674 break;
675 default:
676 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
677 return NULL;
678 }
679 break;
680 case EGL_OPENGL_API:
681 api = __DRI_API_OPENGL;
682 break;
683 default:
684 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
685 return NULL;
686 }
687
688 if (conf != NULL) {
689 /* The config chosen here isn't necessarily
690 * used for surfaces later.
691 * A pixmap surface will use the single config.
692 * This opportunity depends on disabling the
693 * doubleBufferMode check in
694 * src/mesa/main/context.c:check_compatible()
695 */
696 if (dri2_config->dri_double_config)
697 dri_config = dri2_config->dri_double_config;
698 else
699 dri_config = dri2_config->dri_single_config;
700
701 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
702 * makes sure the back buffer will always be used.
703 */
704 if (conf->SurfaceType & EGL_WINDOW_BIT)
705 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
706 }
707 else
708 dri_config = NULL;
709
710 if (dri2_dpy->dri2) {
711 if (dri2_dpy->dri2->base.version >= 2) {
712 dri2_ctx->dri_context =
713 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
714 api,
715 dri_config,
716 dri2_ctx_shared ?
717 dri2_ctx_shared->dri_context : NULL,
718 dri2_ctx);
719 } else if (api == __DRI_API_OPENGL) {
720 dri2_ctx->dri_context =
721 dri2_dpy->dri2->createNewContext(dri2_dpy->dri_screen,
722 dri_config,
723 dri2_ctx_shared ?
724 dri2_ctx_shared->dri_context : NULL,
725 dri2_ctx);
726 } else {
727 /* fail */
728 }
729 } else {
730 assert(dri2_dpy->swrast);
731 dri2_ctx->dri_context =
732 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
733 api,
734 dri_config,
735 dri2_ctx_shared ?
736 dri2_ctx_shared->dri_context : NULL,
737 dri2_ctx);
738 }
739
740 if (!dri2_ctx->dri_context)
741 goto cleanup;
742
743 return &dri2_ctx->base;
744
745 cleanup:
746 free(dri2_ctx);
747 return NULL;
748 }
749
750 /**
751 * Called via eglDestroyContext(), drv->API.DestroyContext().
752 */
753 static EGLBoolean
754 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
755 {
756 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
757 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
758
759 if (_eglPutContext(ctx)) {
760 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
761 free(dri2_ctx);
762 }
763
764 return EGL_TRUE;
765 }
766
767 /**
768 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
769 */
770 static EGLBoolean
771 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
772 _EGLSurface *rsurf, _EGLContext *ctx)
773 {
774 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
775 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
776 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
777 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
778 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
779 _EGLContext *old_ctx;
780 _EGLSurface *old_dsurf, *old_rsurf;
781 __DRIdrawable *ddraw, *rdraw;
782 __DRIcontext *cctx;
783
784 /* make new bindings */
785 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
786 return EGL_FALSE;
787
788 /* flush before context switch */
789 if (old_ctx && dri2_drv->glFlush)
790 dri2_drv->glFlush();
791
792 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
793 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
794 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
795
796 if (old_ctx) {
797 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
798 dri2_dpy->core->unbindContext(old_cctx);
799 }
800
801 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
802 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
803 if (old_dsurf)
804 drv->API.DestroySurface(drv, disp, old_dsurf);
805 if (old_rsurf)
806 drv->API.DestroySurface(drv, disp, old_rsurf);
807 if (old_ctx)
808 drv->API.DestroyContext(drv, disp, old_ctx);
809
810 return EGL_TRUE;
811 } else {
812 /* undo the previous _eglBindContext */
813 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
814 assert(&dri2_ctx->base == ctx &&
815 &dri2_dsurf->base == dsurf &&
816 &dri2_rsurf->base == rsurf);
817
818 _eglPutSurface(dsurf);
819 _eglPutSurface(rsurf);
820 _eglPutContext(ctx);
821
822 _eglPutSurface(old_dsurf);
823 _eglPutSurface(old_rsurf);
824 _eglPutContext(old_ctx);
825
826 return EGL_FALSE;
827 }
828 }
829
830 /*
831 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
832 */
833 static _EGLProc
834 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
835 {
836 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
837
838 return dri2_drv->get_proc_address(procname);
839 }
840
841 static EGLBoolean
842 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
843 {
844 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
845 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
846
847 (void) drv;
848
849 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
850 * we need to copy fake to real here.*/
851
852 (*dri2_dpy->flush->flush)(dri2_surf->dri_drawable);
853
854 return EGL_TRUE;
855 }
856
857 static EGLBoolean
858 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
859 {
860 (void) drv;
861 (void) disp;
862
863 if (engine != EGL_CORE_NATIVE_ENGINE)
864 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
865 /* glXWaitX(); */
866
867 return EGL_TRUE;
868 }
869
870 static EGLBoolean
871 dri2_bind_tex_image(_EGLDriver *drv,
872 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
873 {
874 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
875 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
876 struct dri2_egl_context *dri2_ctx;
877 _EGLContext *ctx;
878 GLint format, target;
879
880 ctx = _eglGetCurrentContext();
881 dri2_ctx = dri2_egl_context(ctx);
882
883 if (!_eglBindTexImage(drv, disp, surf, buffer))
884 return EGL_FALSE;
885
886 switch (dri2_surf->base.TextureFormat) {
887 case EGL_TEXTURE_RGB:
888 format = __DRI_TEXTURE_FORMAT_RGB;
889 break;
890 case EGL_TEXTURE_RGBA:
891 format = __DRI_TEXTURE_FORMAT_RGBA;
892 break;
893 default:
894 assert(0);
895 }
896
897 switch (dri2_surf->base.TextureTarget) {
898 case EGL_TEXTURE_2D:
899 target = GL_TEXTURE_2D;
900 break;
901 default:
902 assert(0);
903 }
904
905 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
906 target, format,
907 dri2_surf->dri_drawable);
908
909 return EGL_TRUE;
910 }
911
912 static EGLBoolean
913 dri2_release_tex_image(_EGLDriver *drv,
914 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
915 {
916 #if __DRI_TEX_BUFFER_VERSION >= 3
917 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
918 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
919 struct dri2_egl_context *dri2_ctx;
920 _EGLContext *ctx;
921 GLint target;
922
923 ctx = _eglGetCurrentContext();
924 dri2_ctx = dri2_egl_context(ctx);
925
926 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
927 return EGL_FALSE;
928
929 switch (dri2_surf->base.TextureTarget) {
930 case EGL_TEXTURE_2D:
931 target = GL_TEXTURE_2D;
932 break;
933 default:
934 assert(0);
935 }
936 if (dri2_dpy->tex_buffer->releaseTexBuffer!=NULL)
937 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
938 target,
939 dri2_surf->dri_drawable);
940 #endif
941
942 return EGL_TRUE;
943 }
944
945 static _EGLImage *
946 dri2_create_image(_EGLDisplay *disp, __DRIimage *dri_image)
947 {
948 struct dri2_egl_image *dri2_img;
949
950 if (dri_image == NULL) {
951 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
952 return NULL;
953 }
954
955 dri2_img = malloc(sizeof *dri2_img);
956 if (!dri2_img) {
957 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
958 return NULL;
959 }
960
961 if (!_eglInitImage(&dri2_img->base, disp)) {
962 free(dri2_img);
963 return NULL;
964 }
965
966 dri2_img->dri_image = dri_image;
967
968 return &dri2_img->base;
969 }
970
971 static _EGLImage *
972 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
973 EGLClientBuffer buffer,
974 const EGLint *attr_list)
975 {
976 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
977 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
978 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
979 __DRIimage *dri_image;
980
981 if (renderbuffer == 0) {
982 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
983 return EGL_NO_IMAGE_KHR;
984 }
985
986 dri_image =
987 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
988 renderbuffer, NULL);
989
990 return dri2_create_image(disp, dri_image);
991 }
992
993 static _EGLImage *
994 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
995 EGLClientBuffer buffer, const EGLint *attr_list)
996 {
997 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
998 EGLint format, name, pitch, err;
999 _EGLImageAttribs attrs;
1000 __DRIimage *dri_image;
1001
1002 name = (EGLint) (uintptr_t) buffer;
1003
1004 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1005 if (err != EGL_SUCCESS)
1006 return NULL;
1007
1008 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1009 attrs.DRMBufferStrideMESA <= 0) {
1010 _eglError(EGL_BAD_PARAMETER,
1011 "bad width, height or stride");
1012 return NULL;
1013 }
1014
1015 switch (attrs.DRMBufferFormatMESA) {
1016 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1017 format = __DRI_IMAGE_FORMAT_ARGB8888;
1018 pitch = attrs.DRMBufferStrideMESA;
1019 break;
1020 default:
1021 _eglError(EGL_BAD_PARAMETER,
1022 "dri2_create_image_khr: unsupported pixmap depth");
1023 return NULL;
1024 }
1025
1026 dri_image =
1027 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1028 attrs.Width,
1029 attrs.Height,
1030 format,
1031 name,
1032 pitch,
1033 NULL);
1034
1035 return dri2_create_image(disp, dri_image);
1036 }
1037
1038 #ifdef HAVE_WAYLAND_PLATFORM
1039
1040 /* This structure describes how a wl_buffer maps to one or more
1041 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1042 * offsets and strides of the planes in the buffer. This table maps a
1043 * wl_drm format code to a description of the planes in the buffer
1044 * that lets us create a __DRIimage for each of the planes. */
1045
1046 static const struct wl_drm_format_descriptor {
1047 uint32_t wl_format;
1048 EGLint components;
1049 int nplanes;
1050 struct {
1051 int buffer_index;
1052 int width_shift;
1053 int height_shift;
1054 uint32_t dri_format;
1055 int cpp;
1056 } planes[3];
1057 } wl_drm_formats[] = {
1058 { WL_DRM_FORMAT_ARGB8888, EGL_TEXTURE_RGBA, 1,
1059 { { 0, 0, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 }, } },
1060
1061 { WL_DRM_FORMAT_XRGB8888, EGL_TEXTURE_RGB, 1,
1062 { { 0, 0, 0, __DRI_IMAGE_FORMAT_XRGB8888, 4 }, } },
1063
1064 { WL_DRM_FORMAT_YUV410, EGL_TEXTURE_Y_U_V_WL, 3,
1065 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1066 { 1, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 },
1067 { 2, 2, 2, __DRI_IMAGE_FORMAT_R8, 1 } } },
1068
1069 { WL_DRM_FORMAT_YUV411, EGL_TEXTURE_Y_U_V_WL, 3,
1070 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1071 { 1, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1072 { 2, 2, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1073
1074 { WL_DRM_FORMAT_YUV420, EGL_TEXTURE_Y_U_V_WL, 3,
1075 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1076 { 1, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 },
1077 { 2, 1, 1, __DRI_IMAGE_FORMAT_R8, 1 } } },
1078
1079 { WL_DRM_FORMAT_YUV422, EGL_TEXTURE_Y_U_V_WL, 3,
1080 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1081 { 1, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1082 { 2, 1, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1083
1084 { WL_DRM_FORMAT_YUV444, EGL_TEXTURE_Y_U_V_WL, 3,
1085 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1086 { 1, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1087 { 2, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 } } },
1088
1089 { WL_DRM_FORMAT_NV12, EGL_TEXTURE_Y_UV_WL, 2,
1090 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1091 { 1, 1, 1, __DRI_IMAGE_FORMAT_GR88, 2 } } },
1092
1093 { WL_DRM_FORMAT_NV16, EGL_TEXTURE_Y_UV_WL, 2,
1094 { { 0, 0, 0, __DRI_IMAGE_FORMAT_R8, 1 },
1095 { 1, 1, 0, __DRI_IMAGE_FORMAT_GR88, 2 } } },
1096
1097 /* For YUYV buffers, we set up two overlapping DRI images and treat
1098 * them as planar buffers in the compositors. Plane 0 is GR88 and
1099 * samples YU or YV pairs and places Y into the R component, while
1100 * plane 1 is ARGB and samples YUYV clusters and places pairs and
1101 * places U into the G component and V into A. This lets the
1102 * texture sampler interpolate the Y components correctly when
1103 * sampling from plane 0, and interpolate U and V correctly when
1104 * sampling from plane 1. */
1105 { WL_DRM_FORMAT_YUYV, EGL_TEXTURE_Y_XUXV_WL, 2,
1106 { { 0, 0, 0, __DRI_IMAGE_FORMAT_GR88, 2 },
1107 { 0, 1, 0, __DRI_IMAGE_FORMAT_ARGB8888, 4 } } }
1108 };
1109
1110 static _EGLImage *
1111 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1112 EGLClientBuffer _buffer,
1113 const EGLint *attr_list)
1114 {
1115 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1116 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1117 __DRIimage *dri_image;
1118 _EGLImageAttribs attrs;
1119 EGLint err;
1120 uint32_t format;
1121 int32_t offset, stride, plane, width, height;
1122 int cpp, index;
1123 const struct wl_drm_format_descriptor *f;
1124
1125 if (!wayland_buffer_is_drm(&buffer->buffer))
1126 return NULL;
1127
1128 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1129 plane = attrs.PlaneWL;
1130 if (err != EGL_SUCCESS) {
1131 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1132 return NULL;
1133 }
1134
1135 f = buffer->driver_format;
1136 if (plane < 0 || plane >= f->nplanes) {
1137 _eglError(EGL_BAD_PARAMETER,
1138 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1139 return NULL;
1140 }
1141
1142 width = buffer->buffer.width >> f->planes[plane].width_shift;
1143 height = buffer->buffer.height >> f->planes[plane].height_shift;
1144 format = f->planes[plane].dri_format;
1145 cpp = f->planes[plane].cpp;
1146 index = f->planes[plane].buffer_index;
1147 offset = buffer->offset[index];
1148 stride = buffer->stride[index];
1149
1150 dri_image = dri2_dpy->image->createSubImage(buffer->driver_buffer,
1151 width, height, format,
1152 offset, stride / cpp, NULL);
1153
1154 return dri2_create_image(disp, dri_image);
1155 }
1156 #endif
1157
1158 _EGLImage *
1159 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
1160 _EGLContext *ctx, EGLenum target,
1161 EGLClientBuffer buffer, const EGLint *attr_list)
1162 {
1163 (void) drv;
1164
1165 switch (target) {
1166 case EGL_GL_RENDERBUFFER_KHR:
1167 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
1168 case EGL_DRM_BUFFER_MESA:
1169 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
1170 #ifdef HAVE_WAYLAND_PLATFORM
1171 case EGL_WAYLAND_BUFFER_WL:
1172 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
1173 #endif
1174 default:
1175 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1176 return EGL_NO_IMAGE_KHR;
1177 }
1178 }
1179
1180 static EGLBoolean
1181 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
1182 {
1183 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1184 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
1185
1186 (void) drv;
1187
1188 dri2_dpy->image->destroyImage(dri2_img->dri_image);
1189 free(dri2_img);
1190
1191 return EGL_TRUE;
1192 }
1193
1194 static _EGLImage *
1195 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1196 const EGLint *attr_list)
1197 {
1198 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1199 struct dri2_egl_image *dri2_img;
1200 _EGLImageAttribs attrs;
1201 unsigned int dri_use, valid_mask;
1202 int format;
1203 EGLint err = EGL_SUCCESS;
1204
1205 (void) drv;
1206
1207 dri2_img = malloc(sizeof *dri2_img);
1208 if (!dri2_img) {
1209 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1210 return EGL_NO_IMAGE_KHR;
1211 }
1212
1213 if (!attr_list) {
1214 err = EGL_BAD_PARAMETER;
1215 goto cleanup_img;
1216 }
1217
1218 if (!_eglInitImage(&dri2_img->base, disp)) {
1219 err = EGL_BAD_PARAMETER;
1220 goto cleanup_img;
1221 }
1222
1223 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1224 if (err != EGL_SUCCESS)
1225 goto cleanup_img;
1226
1227 if (attrs.Width <= 0 || attrs.Height <= 0) {
1228 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
1229 attrs.Width, attrs.Height);
1230 goto cleanup_img;
1231 }
1232
1233 switch (attrs.DRMBufferFormatMESA) {
1234 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1235 format = __DRI_IMAGE_FORMAT_ARGB8888;
1236 break;
1237 default:
1238 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
1239 attrs.DRMBufferFormatMESA);
1240 goto cleanup_img;
1241 }
1242
1243 valid_mask =
1244 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
1245 EGL_DRM_BUFFER_USE_SHARE_MESA |
1246 EGL_DRM_BUFFER_USE_CURSOR_MESA;
1247 if (attrs.DRMBufferUseMESA & ~valid_mask) {
1248 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
1249 attrs.DRMBufferUseMESA & ~valid_mask);
1250 goto cleanup_img;
1251 }
1252
1253 dri_use = 0;
1254 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
1255 dri_use |= __DRI_IMAGE_USE_SHARE;
1256 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
1257 dri_use |= __DRI_IMAGE_USE_SCANOUT;
1258 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
1259 dri_use |= __DRI_IMAGE_USE_CURSOR;
1260
1261 dri2_img->dri_image =
1262 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
1263 attrs.Width, attrs.Height,
1264 format, dri_use, dri2_img);
1265 if (dri2_img->dri_image == NULL) {
1266 err = EGL_BAD_ALLOC;
1267 goto cleanup_img;
1268 }
1269
1270 return &dri2_img->base;
1271
1272 cleanup_img:
1273 free(dri2_img);
1274 _eglError(err, "dri2_create_drm_image_mesa");
1275
1276 return EGL_NO_IMAGE_KHR;
1277 }
1278
1279 static EGLBoolean
1280 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
1281 EGLint *name, EGLint *handle, EGLint *stride)
1282 {
1283 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1284 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
1285
1286 (void) drv;
1287
1288 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
1289 __DRI_IMAGE_ATTRIB_NAME, name)) {
1290 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
1291 return EGL_FALSE;
1292 }
1293
1294 if (handle)
1295 dri2_dpy->image->queryImage(dri2_img->dri_image,
1296 __DRI_IMAGE_ATTRIB_HANDLE, handle);
1297
1298 if (stride)
1299 dri2_dpy->image->queryImage(dri2_img->dri_image,
1300 __DRI_IMAGE_ATTRIB_STRIDE, stride);
1301
1302 return EGL_TRUE;
1303 }
1304
1305 #ifdef HAVE_WAYLAND_PLATFORM
1306
1307 static void
1308 dri2_wl_reference_buffer(void *user_data, uint32_t name,
1309 struct wl_drm_buffer *buffer)
1310 {
1311 _EGLDisplay *disp = user_data;
1312 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1313 int i;
1314
1315 for (i = 0; i < ARRAY_SIZE(wl_drm_formats); i++)
1316 if (wl_drm_formats[i].wl_format == buffer->format) {
1317 buffer->driver_format = &wl_drm_formats[i];
1318 break;
1319 }
1320
1321 if (buffer->driver_format == NULL)
1322 return;
1323
1324 buffer->driver_buffer =
1325 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1326 buffer->buffer.width,
1327 buffer->buffer.height,
1328 __DRI_IMAGE_FORMAT_NONE, name,
1329 buffer->stride[0] / 4,
1330 NULL);
1331 }
1332
1333 static void
1334 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
1335 {
1336 _EGLDisplay *disp = user_data;
1337 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1338
1339 dri2_dpy->image->destroyImage(buffer->driver_buffer);
1340 }
1341
1342 static struct wayland_drm_callbacks wl_drm_callbacks = {
1343 .authenticate = NULL,
1344 .reference_buffer = dri2_wl_reference_buffer,
1345 .release_buffer = dri2_wl_release_buffer
1346 };
1347
1348 static EGLBoolean
1349 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1350 struct wl_display *wl_dpy)
1351 {
1352 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1353
1354 (void) drv;
1355
1356 if (dri2_dpy->wl_server_drm)
1357 return EGL_FALSE;
1358
1359 wl_drm_callbacks.authenticate =
1360 (int(*)(void *, uint32_t)) dri2_dpy->authenticate;
1361
1362 dri2_dpy->wl_server_drm =
1363 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
1364 &wl_drm_callbacks, disp);
1365
1366 if (!dri2_dpy->wl_server_drm)
1367 return EGL_FALSE;
1368
1369 return EGL_TRUE;
1370 }
1371
1372 static EGLBoolean
1373 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
1374 struct wl_display *wl_dpy)
1375 {
1376 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1377
1378 (void) drv;
1379
1380 if (!dri2_dpy->wl_server_drm)
1381 return EGL_FALSE;
1382
1383 wayland_drm_uninit(dri2_dpy->wl_server_drm);
1384 dri2_dpy->wl_server_drm = NULL;
1385
1386 return EGL_TRUE;
1387 }
1388
1389 static EGLBoolean
1390 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
1391 struct wl_buffer *_buffer,
1392 EGLint attribute, EGLint *value)
1393 {
1394 struct wl_drm_buffer *buffer = (struct wl_drm_buffer *) _buffer;
1395 const struct wl_drm_format_descriptor *format;
1396
1397 if (!wayland_buffer_is_drm(&buffer->buffer))
1398 return EGL_FALSE;
1399
1400 format = buffer->driver_format;
1401 switch (attribute) {
1402 case EGL_TEXTURE_FORMAT:
1403 *value = format->components;
1404 return EGL_TRUE;
1405 case EGL_WIDTH:
1406 *value = buffer->buffer.width;
1407 break;
1408 case EGL_HEIGHT:
1409 *value = buffer->buffer.height;
1410 break;
1411 }
1412
1413 return EGL_FALSE;
1414 }
1415 #endif
1416
1417 static void
1418 dri2_unload(_EGLDriver *drv)
1419 {
1420 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1421
1422 if (dri2_drv->handle)
1423 dlclose(dri2_drv->handle);
1424 free(dri2_drv);
1425 }
1426
1427 static EGLBoolean
1428 dri2_load(_EGLDriver *drv)
1429 {
1430 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1431 #ifdef HAVE_SHARED_GLAPI
1432 #ifdef HAVE_ANDROID_PLATFORM
1433 const char *libname = "libglapi.so";
1434 #else
1435 const char *libname = "libglapi.so.0";
1436 #endif
1437 #else
1438 /*
1439 * Both libGL.so and libglapi.so are glapi providers. There is no way to
1440 * tell which one to load.
1441 */
1442 const char *libname = NULL;
1443 #endif
1444 void *handle;
1445
1446 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
1447 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
1448 if (handle) {
1449 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
1450 dlsym(handle, "_glapi_get_proc_address");
1451 if (!dri2_drv->get_proc_address || !libname) {
1452 /* no need to keep a reference */
1453 dlclose(handle);
1454 handle = NULL;
1455 }
1456 }
1457
1458 /* if glapi is not available, loading DRI drivers will fail */
1459 if (!dri2_drv->get_proc_address) {
1460 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
1461 return EGL_FALSE;
1462 }
1463
1464 dri2_drv->glFlush = (void (*)(void))
1465 dri2_drv->get_proc_address("glFlush");
1466
1467 dri2_drv->handle = handle;
1468
1469 return EGL_TRUE;
1470 }
1471
1472 /**
1473 * This is the main entrypoint into the driver, called by libEGL.
1474 * Create a new _EGLDriver object and init its dispatch table.
1475 */
1476 _EGLDriver *
1477 _eglBuiltInDriverDRI2(const char *args)
1478 {
1479 struct dri2_egl_driver *dri2_drv;
1480
1481 (void) args;
1482
1483 dri2_drv = malloc(sizeof *dri2_drv);
1484 if (!dri2_drv)
1485 return NULL;
1486
1487 memset(dri2_drv, 0, sizeof *dri2_drv);
1488
1489 if (!dri2_load(&dri2_drv->base)) {
1490 free(dri2_drv);
1491 return NULL;
1492 }
1493
1494 _eglInitDriverFallbacks(&dri2_drv->base);
1495 dri2_drv->base.API.Initialize = dri2_initialize;
1496 dri2_drv->base.API.Terminate = dri2_terminate;
1497 dri2_drv->base.API.CreateContext = dri2_create_context;
1498 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
1499 dri2_drv->base.API.MakeCurrent = dri2_make_current;
1500 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
1501 dri2_drv->base.API.WaitClient = dri2_wait_client;
1502 dri2_drv->base.API.WaitNative = dri2_wait_native;
1503 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
1504 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
1505 dri2_drv->base.API.CreateImageKHR = dri2_create_image_khr;
1506 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
1507 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
1508 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
1509 #ifdef HAVE_WAYLAND_PLATFORM
1510 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
1511 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
1512 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
1513 #endif
1514
1515 dri2_drv->base.Name = "DRI2";
1516 dri2_drv->base.Unload = dri2_unload;
1517
1518 return &dri2_drv->base;
1519 }