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egl_dri2: Use createContextAttribs if swrast version >= 3
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #define WL_HIDE_DEPRECATED
29
30 #include <stdbool.h>
31 #include <stdint.h>
32 #include <stdbool.h>
33 #include <stdlib.h>
34 #include <string.h>
35 #include <stdio.h>
36 #include <limits.h>
37 #include <dlfcn.h>
38 #include <fcntl.h>
39 #include <errno.h>
40 #include <unistd.h>
41 #ifdef HAVE_LIBDRM
42 #include <xf86drm.h>
43 #include <drm_fourcc.h>
44 #endif
45 #include <GL/gl.h>
46 #include <GL/internal/dri_interface.h>
47 #include <sys/types.h>
48 #include <sys/stat.h>
49
50 #ifdef HAVE_WAYLAND_PLATFORM
51 #include "wayland-drm.h"
52 #include "wayland-drm-client-protocol.h"
53 #endif
54
55 #include "egl_dri2.h"
56 #include "util/u_atomic.h"
57
58 /* The kernel header drm_fourcc.h defines the DRM formats below. We duplicate
59 * some of the definitions here so that building Mesa won't bleeding-edge
60 * kernel headers.
61 */
62 #ifndef DRM_FORMAT_R8
63 #define DRM_FORMAT_R8 fourcc_code('R', '8', ' ', ' ') /* [7:0] R */
64 #endif
65
66 #ifndef DRM_FORMAT_RG88
67 #define DRM_FORMAT_RG88 fourcc_code('R', 'G', '8', '8') /* [15:0] R:G 8:8 little endian */
68 #endif
69
70 #ifndef DRM_FORMAT_GR88
71 #define DRM_FORMAT_GR88 fourcc_code('G', 'R', '8', '8') /* [15:0] G:R 8:8 little endian */
72 #endif
73
74 const __DRIuseInvalidateExtension use_invalidate = {
75 .base = { __DRI_USE_INVALIDATE, 1 }
76 };
77
78 EGLint dri2_to_egl_attribute_map[] = {
79 0,
80 EGL_BUFFER_SIZE, /* __DRI_ATTRIB_BUFFER_SIZE */
81 EGL_LEVEL, /* __DRI_ATTRIB_LEVEL */
82 EGL_RED_SIZE, /* __DRI_ATTRIB_RED_SIZE */
83 EGL_GREEN_SIZE, /* __DRI_ATTRIB_GREEN_SIZE */
84 EGL_BLUE_SIZE, /* __DRI_ATTRIB_BLUE_SIZE */
85 EGL_LUMINANCE_SIZE, /* __DRI_ATTRIB_LUMINANCE_SIZE */
86 EGL_ALPHA_SIZE, /* __DRI_ATTRIB_ALPHA_SIZE */
87 0, /* __DRI_ATTRIB_ALPHA_MASK_SIZE */
88 EGL_DEPTH_SIZE, /* __DRI_ATTRIB_DEPTH_SIZE */
89 EGL_STENCIL_SIZE, /* __DRI_ATTRIB_STENCIL_SIZE */
90 0, /* __DRI_ATTRIB_ACCUM_RED_SIZE */
91 0, /* __DRI_ATTRIB_ACCUM_GREEN_SIZE */
92 0, /* __DRI_ATTRIB_ACCUM_BLUE_SIZE */
93 0, /* __DRI_ATTRIB_ACCUM_ALPHA_SIZE */
94 EGL_SAMPLE_BUFFERS, /* __DRI_ATTRIB_SAMPLE_BUFFERS */
95 EGL_SAMPLES, /* __DRI_ATTRIB_SAMPLES */
96 0, /* __DRI_ATTRIB_RENDER_TYPE, */
97 0, /* __DRI_ATTRIB_CONFIG_CAVEAT */
98 0, /* __DRI_ATTRIB_CONFORMANT */
99 0, /* __DRI_ATTRIB_DOUBLE_BUFFER */
100 0, /* __DRI_ATTRIB_STEREO */
101 0, /* __DRI_ATTRIB_AUX_BUFFERS */
102 0, /* __DRI_ATTRIB_TRANSPARENT_TYPE */
103 0, /* __DRI_ATTRIB_TRANSPARENT_INDEX_VALUE */
104 0, /* __DRI_ATTRIB_TRANSPARENT_RED_VALUE */
105 0, /* __DRI_ATTRIB_TRANSPARENT_GREEN_VALUE */
106 0, /* __DRI_ATTRIB_TRANSPARENT_BLUE_VALUE */
107 0, /* __DRI_ATTRIB_TRANSPARENT_ALPHA_VALUE */
108 0, /* __DRI_ATTRIB_FLOAT_MODE (deprecated) */
109 0, /* __DRI_ATTRIB_RED_MASK */
110 0, /* __DRI_ATTRIB_GREEN_MASK */
111 0, /* __DRI_ATTRIB_BLUE_MASK */
112 0, /* __DRI_ATTRIB_ALPHA_MASK */
113 EGL_MAX_PBUFFER_WIDTH, /* __DRI_ATTRIB_MAX_PBUFFER_WIDTH */
114 EGL_MAX_PBUFFER_HEIGHT, /* __DRI_ATTRIB_MAX_PBUFFER_HEIGHT */
115 EGL_MAX_PBUFFER_PIXELS, /* __DRI_ATTRIB_MAX_PBUFFER_PIXELS */
116 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_WIDTH */
117 0, /* __DRI_ATTRIB_OPTIMAL_PBUFFER_HEIGHT */
118 0, /* __DRI_ATTRIB_VISUAL_SELECT_GROUP */
119 0, /* __DRI_ATTRIB_SWAP_METHOD */
120 EGL_MAX_SWAP_INTERVAL, /* __DRI_ATTRIB_MAX_SWAP_INTERVAL */
121 EGL_MIN_SWAP_INTERVAL, /* __DRI_ATTRIB_MIN_SWAP_INTERVAL */
122 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGB */
123 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA */
124 0, /* __DRI_ATTRIB_BIND_TO_MIPMAP_TEXTURE */
125 0, /* __DRI_ATTRIB_BIND_TO_TEXTURE_TARGETS */
126 EGL_Y_INVERTED_NOK, /* __DRI_ATTRIB_YINVERTED */
127 0, /* __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE */
128 };
129
130 const __DRIconfig *
131 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
132 EGLenum colorspace)
133 {
134 if (colorspace == EGL_GL_COLORSPACE_SRGB_KHR)
135 return surface_type == EGL_WINDOW_BIT ? conf->dri_srgb_double_config :
136 conf->dri_srgb_single_config;
137 else
138 return surface_type == EGL_WINDOW_BIT ? conf->dri_double_config :
139 conf->dri_single_config;
140 }
141
142 static EGLBoolean
143 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
144 {
145 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
146 return EGL_FALSE;
147
148 if (!_eglMatchConfig(conf, criteria))
149 return EGL_FALSE;
150
151 return EGL_TRUE;
152 }
153
154 struct dri2_egl_config *
155 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
156 EGLint surface_type, const EGLint *attr_list,
157 const unsigned int *rgba_masks)
158 {
159 struct dri2_egl_config *conf;
160 struct dri2_egl_display *dri2_dpy;
161 _EGLConfig base;
162 unsigned int attrib, value, double_buffer;
163 bool srgb = false;
164 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
165 unsigned int dri_masks[4] = { 0, 0, 0, 0 };
166 _EGLConfig *matching_config;
167 EGLint num_configs = 0;
168 EGLint config_id;
169 int i;
170
171 dri2_dpy = disp->DriverData;
172 _eglInitConfig(&base, disp, id);
173
174 i = 0;
175 double_buffer = 0;
176 bind_to_texture_rgb = 0;
177 bind_to_texture_rgba = 0;
178
179 while (dri2_dpy->core->indexConfigAttrib(dri_config, i++, &attrib, &value)) {
180 switch (attrib) {
181 case __DRI_ATTRIB_RENDER_TYPE:
182 if (value & __DRI_ATTRIB_RGBA_BIT)
183 value = EGL_RGB_BUFFER;
184 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
185 value = EGL_LUMINANCE_BUFFER;
186 else
187 return NULL;
188 _eglSetConfigKey(&base, EGL_COLOR_BUFFER_TYPE, value);
189 break;
190
191 case __DRI_ATTRIB_CONFIG_CAVEAT:
192 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
193 value = EGL_NON_CONFORMANT_CONFIG;
194 else if (value & __DRI_ATTRIB_SLOW_BIT)
195 value = EGL_SLOW_CONFIG;
196 else
197 value = EGL_NONE;
198 _eglSetConfigKey(&base, EGL_CONFIG_CAVEAT, value);
199 break;
200
201 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
202 bind_to_texture_rgb = value;
203 break;
204
205 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
206 bind_to_texture_rgba = value;
207 break;
208
209 case __DRI_ATTRIB_DOUBLE_BUFFER:
210 double_buffer = value;
211 break;
212
213 case __DRI_ATTRIB_RED_MASK:
214 dri_masks[0] = value;
215 break;
216
217 case __DRI_ATTRIB_GREEN_MASK:
218 dri_masks[1] = value;
219 break;
220
221 case __DRI_ATTRIB_BLUE_MASK:
222 dri_masks[2] = value;
223 break;
224
225 case __DRI_ATTRIB_ALPHA_MASK:
226 dri_masks[3] = value;
227 break;
228
229 case __DRI_ATTRIB_ACCUM_RED_SIZE:
230 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
231 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
232 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
233 /* Don't expose visuals with the accumulation buffer. */
234 if (value > 0)
235 return NULL;
236 break;
237
238 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
239 srgb = value != 0;
240 break;
241
242 default:
243 key = dri2_to_egl_attribute_map[attrib];
244 if (key != 0)
245 _eglSetConfigKey(&base, key, value);
246 break;
247 }
248 }
249
250 if (attr_list)
251 for (i = 0; attr_list[i] != EGL_NONE; i += 2)
252 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
253
254 if (rgba_masks && memcmp(rgba_masks, dri_masks, sizeof(dri_masks)))
255 return NULL;
256
257 base.NativeRenderable = EGL_TRUE;
258
259 base.SurfaceType = surface_type;
260 if (surface_type & (EGL_PBUFFER_BIT |
261 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
262 base.BindToTextureRGB = bind_to_texture_rgb;
263 if (base.AlphaSize > 0)
264 base.BindToTextureRGBA = bind_to_texture_rgba;
265 }
266
267 base.RenderableType = disp->ClientAPIs;
268 base.Conformant = disp->ClientAPIs;
269
270 base.MinSwapInterval = dri2_dpy->min_swap_interval;
271 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
272
273 if (!_eglValidateConfig(&base, EGL_FALSE)) {
274 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
275 return NULL;
276 }
277
278 config_id = base.ConfigID;
279 base.ConfigID = EGL_DONT_CARE;
280 base.SurfaceType = EGL_DONT_CARE;
281 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
282 (_EGLArrayForEach) dri2_match_config, &base);
283
284 if (num_configs == 1) {
285 conf = (struct dri2_egl_config *) matching_config;
286
287 if (double_buffer && srgb && !conf->dri_srgb_double_config)
288 conf->dri_srgb_double_config = dri_config;
289 else if (double_buffer && !srgb && !conf->dri_double_config)
290 conf->dri_double_config = dri_config;
291 else if (!double_buffer && srgb && !conf->dri_srgb_single_config)
292 conf->dri_srgb_single_config = dri_config;
293 else if (!double_buffer && !srgb && !conf->dri_single_config)
294 conf->dri_single_config = dri_config;
295 else
296 /* a similar config type is already added (unlikely) => discard */
297 return NULL;
298 }
299 else if (num_configs == 0) {
300 conf = calloc(1, sizeof *conf);
301 if (conf == NULL)
302 return NULL;
303
304 memcpy(&conf->base, &base, sizeof base);
305 if (double_buffer) {
306 if (srgb)
307 conf->dri_srgb_double_config = dri_config;
308 else
309 conf->dri_double_config = dri_config;
310 } else {
311 if (srgb)
312 conf->dri_srgb_single_config = dri_config;
313 else
314 conf->dri_single_config = dri_config;
315 }
316 conf->base.ConfigID = config_id;
317
318 _eglLinkConfig(&conf->base);
319 }
320 else {
321 assert(0);
322 return NULL;
323 }
324
325 if (double_buffer) {
326 surface_type &= ~EGL_PIXMAP_BIT;
327 }
328
329 conf->base.SurfaceType |= surface_type;
330
331 return conf;
332 }
333
334 __DRIimage *
335 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
336 {
337 _EGLDisplay *disp = data;
338 struct dri2_egl_image *dri2_img;
339 _EGLImage *img;
340
341 (void) screen;
342
343 img = _eglLookupImage(image, disp);
344 if (img == NULL) {
345 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
346 return NULL;
347 }
348
349 dri2_img = dri2_egl_image(image);
350
351 return dri2_img->dri_image;
352 }
353
354 const __DRIimageLookupExtension image_lookup_extension = {
355 .base = { __DRI_IMAGE_LOOKUP, 1 },
356
357 .lookupEGLImage = dri2_lookup_egl_image
358 };
359
360 struct dri2_extension_match {
361 const char *name;
362 int version;
363 int offset;
364 };
365
366 static struct dri2_extension_match dri2_driver_extensions[] = {
367 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
368 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
369 { NULL, 0, 0 }
370 };
371
372 static struct dri2_extension_match dri2_core_extensions[] = {
373 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
374 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
375 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
376 { NULL, 0, 0 }
377 };
378
379 static struct dri2_extension_match swrast_driver_extensions[] = {
380 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
381 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
382 { NULL, 0, 0 }
383 };
384
385 static struct dri2_extension_match swrast_core_extensions[] = {
386 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
387 { NULL, 0, 0 }
388 };
389
390 static EGLBoolean
391 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
392 struct dri2_extension_match *matches,
393 const __DRIextension **extensions)
394 {
395 int i, j, ret = EGL_TRUE;
396 void *field;
397
398 for (i = 0; extensions[i]; i++) {
399 _eglLog(_EGL_DEBUG, "DRI2: found extension `%s'", extensions[i]->name);
400 for (j = 0; matches[j].name; j++) {
401 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
402 extensions[i]->version >= matches[j].version) {
403 field = ((char *) dri2_dpy + matches[j].offset);
404 *(const __DRIextension **) field = extensions[i];
405 _eglLog(_EGL_INFO, "DRI2: found extension %s version %d",
406 extensions[i]->name, extensions[i]->version);
407 }
408 }
409 }
410
411 for (j = 0; matches[j].name; j++) {
412 field = ((char *) dri2_dpy + matches[j].offset);
413 if (*(const __DRIextension **) field == NULL) {
414 _eglLog(_EGL_WARNING, "DRI2: did not find extension %s version %d",
415 matches[j].name, matches[j].version);
416 ret = EGL_FALSE;
417 }
418 }
419
420 return ret;
421 }
422
423 static const __DRIextension **
424 dri2_open_driver(_EGLDisplay *disp)
425 {
426 struct dri2_egl_display *dri2_dpy = disp->DriverData;
427 const __DRIextension **extensions = NULL;
428 char path[PATH_MAX], *search_paths, *p, *next, *end;
429 char *get_extensions_name;
430 const __DRIextension **(*get_extensions)(void);
431
432 search_paths = NULL;
433 if (geteuid() == getuid()) {
434 /* don't allow setuid apps to use LIBGL_DRIVERS_PATH */
435 search_paths = getenv("LIBGL_DRIVERS_PATH");
436 }
437 if (search_paths == NULL)
438 search_paths = DEFAULT_DRIVER_DIR;
439
440 dri2_dpy->driver = NULL;
441 end = search_paths + strlen(search_paths);
442 for (p = search_paths; p < end; p = next + 1) {
443 int len;
444 next = strchr(p, ':');
445 if (next == NULL)
446 next = end;
447
448 len = next - p;
449 #if GLX_USE_TLS
450 snprintf(path, sizeof path,
451 "%.*s/tls/%s_dri.so", len, p, dri2_dpy->driver_name);
452 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
453 #endif
454 if (dri2_dpy->driver == NULL) {
455 snprintf(path, sizeof path,
456 "%.*s/%s_dri.so", len, p, dri2_dpy->driver_name);
457 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
458 if (dri2_dpy->driver == NULL)
459 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
460 }
461 /* not need continue to loop all paths once the driver is found */
462 if (dri2_dpy->driver != NULL)
463 break;
464
465 #ifdef ANDROID
466 snprintf(path, sizeof path, "%.*s/gallium_dri.so", len, p);
467 dri2_dpy->driver = dlopen(path, RTLD_NOW | RTLD_GLOBAL);
468 if (dri2_dpy->driver == NULL)
469 _eglLog(_EGL_DEBUG, "failed to open %s: %s\n", path, dlerror());
470 else
471 break;
472 #endif
473 }
474
475 if (dri2_dpy->driver == NULL) {
476 _eglLog(_EGL_WARNING,
477 "DRI2: failed to open %s (search paths %s)",
478 dri2_dpy->driver_name, search_paths);
479 return NULL;
480 }
481
482 _eglLog(_EGL_DEBUG, "DRI2: dlopen(%s)", path);
483
484 if (asprintf(&get_extensions_name, "%s_%s",
485 __DRI_DRIVER_GET_EXTENSIONS, dri2_dpy->driver_name) != -1) {
486 get_extensions = dlsym(dri2_dpy->driver, get_extensions_name);
487 if (get_extensions) {
488 extensions = get_extensions();
489 } else {
490 _eglLog(_EGL_DEBUG, "driver does not expose %s(): %s\n",
491 get_extensions_name, dlerror());
492 }
493 free(get_extensions_name);
494 }
495
496 if (!extensions)
497 extensions = dlsym(dri2_dpy->driver, __DRI_DRIVER_EXTENSIONS);
498 if (extensions == NULL) {
499 _eglLog(_EGL_WARNING,
500 "DRI2: driver exports no extensions (%s)", dlerror());
501 dlclose(dri2_dpy->driver);
502 }
503
504 return extensions;
505 }
506
507 EGLBoolean
508 dri2_load_driver(_EGLDisplay *disp)
509 {
510 struct dri2_egl_display *dri2_dpy = disp->DriverData;
511 const __DRIextension **extensions;
512
513 extensions = dri2_open_driver(disp);
514 if (!extensions)
515 return EGL_FALSE;
516
517 if (!dri2_bind_extensions(dri2_dpy, dri2_driver_extensions, extensions)) {
518 dlclose(dri2_dpy->driver);
519 return EGL_FALSE;
520 }
521 dri2_dpy->driver_extensions = extensions;
522
523 return EGL_TRUE;
524 }
525
526 EGLBoolean
527 dri2_load_driver_swrast(_EGLDisplay *disp)
528 {
529 struct dri2_egl_display *dri2_dpy = disp->DriverData;
530 const __DRIextension **extensions;
531
532 extensions = dri2_open_driver(disp);
533 if (!extensions)
534 return EGL_FALSE;
535
536 if (!dri2_bind_extensions(dri2_dpy, swrast_driver_extensions, extensions)) {
537 dlclose(dri2_dpy->driver);
538 return EGL_FALSE;
539 }
540 dri2_dpy->driver_extensions = extensions;
541
542 return EGL_TRUE;
543 }
544
545 static unsigned
546 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
547 {
548 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
549 unsigned int value = 0;
550
551 if (!rendererQuery ||
552 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
553 return 0;
554
555 return value;
556 }
557
558 void
559 dri2_setup_screen(_EGLDisplay *disp)
560 {
561 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
562 unsigned int api_mask;
563
564 if (dri2_dpy->dri2) {
565 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
566 } else {
567 assert(dri2_dpy->swrast);
568 api_mask = 1 << __DRI_API_OPENGL |
569 1 << __DRI_API_GLES |
570 1 << __DRI_API_GLES2 |
571 1 << __DRI_API_GLES3;
572 }
573
574 disp->ClientAPIs = 0;
575 if (api_mask & (1 <<__DRI_API_OPENGL))
576 disp->ClientAPIs |= EGL_OPENGL_BIT;
577 if (api_mask & (1 <<__DRI_API_GLES))
578 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
579 if (api_mask & (1 << __DRI_API_GLES2))
580 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
581 if (api_mask & (1 << __DRI_API_GLES3))
582 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
583
584 assert(dri2_dpy->dri2 || dri2_dpy->swrast);
585 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
586 disp->Extensions.MESA_configless_context = EGL_TRUE;
587
588 if (dri2_renderer_query_integer(dri2_dpy,
589 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
590 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
591
592 if (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) {
593 disp->Extensions.KHR_create_context = EGL_TRUE;
594
595 if (dri2_dpy->robustness)
596 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
597 }
598
599 if (dri2_dpy->fence) {
600 disp->Extensions.KHR_fence_sync = EGL_TRUE;
601 disp->Extensions.KHR_wait_sync = EGL_TRUE;
602 if (dri2_dpy->fence->get_fence_from_cl_event)
603 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
604 }
605
606 if (dri2_dpy->image) {
607 if (dri2_dpy->image->base.version >= 10 &&
608 dri2_dpy->image->getCapabilities != NULL) {
609 int capabilities;
610
611 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
612 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
613
614 if (dri2_dpy->image->base.version >= 11)
615 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
616 } else {
617 disp->Extensions.MESA_drm_image = EGL_TRUE;
618 if (dri2_dpy->image->base.version >= 11)
619 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
620 }
621
622 disp->Extensions.KHR_image_base = EGL_TRUE;
623 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
624 if (dri2_dpy->image->base.version >= 5 &&
625 dri2_dpy->image->createImageFromTexture) {
626 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
627 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
628 }
629 if (dri2_renderer_query_integer(dri2_dpy,
630 __DRI2_RENDERER_HAS_TEXTURE_3D))
631 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
632 #ifdef HAVE_LIBDRM
633 if (dri2_dpy->image->base.version >= 8 &&
634 dri2_dpy->image->createImageFromDmaBufs) {
635 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
636 }
637 #endif
638 }
639 }
640
641 /* All platforms but DRM call this function to create the screen, query the
642 * dri extensions, setup the vtables and populate the driver_configs.
643 * DRM inherits all that information from its display - GBM.
644 */
645 EGLBoolean
646 dri2_create_screen(_EGLDisplay *disp)
647 {
648 const __DRIextension **extensions;
649 struct dri2_egl_display *dri2_dpy;
650 unsigned i;
651
652 dri2_dpy = disp->DriverData;
653
654 if (dri2_dpy->dri2) {
655 if (dri2_dpy->dri2->base.version >= 4) {
656 dri2_dpy->dri_screen =
657 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
658 dri2_dpy->extensions,
659 dri2_dpy->driver_extensions,
660 &dri2_dpy->driver_configs, disp);
661 } else {
662 dri2_dpy->dri_screen =
663 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
664 dri2_dpy->extensions,
665 &dri2_dpy->driver_configs, disp);
666 }
667 } else {
668 assert(dri2_dpy->swrast);
669 if (dri2_dpy->swrast->base.version >= 4) {
670 dri2_dpy->dri_screen =
671 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->extensions,
672 dri2_dpy->driver_extensions,
673 &dri2_dpy->driver_configs, disp);
674 } else {
675 dri2_dpy->dri_screen =
676 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->extensions,
677 &dri2_dpy->driver_configs, disp);
678 }
679 }
680
681 if (dri2_dpy->dri_screen == NULL) {
682 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
683 return EGL_FALSE;
684 }
685
686 dri2_dpy->own_dri_screen = 1;
687
688 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
689
690 if (dri2_dpy->dri2) {
691 if (!dri2_bind_extensions(dri2_dpy, dri2_core_extensions, extensions))
692 goto cleanup_dri_screen;
693 } else {
694 assert(dri2_dpy->swrast);
695 if (!dri2_bind_extensions(dri2_dpy, swrast_core_extensions, extensions))
696 goto cleanup_dri_screen;
697 }
698
699 for (i = 0; extensions[i]; i++) {
700 if (strcmp(extensions[i]->name, __DRI2_ROBUSTNESS) == 0) {
701 dri2_dpy->robustness = (__DRIrobustnessExtension *) extensions[i];
702 }
703 if (strcmp(extensions[i]->name, __DRI2_CONFIG_QUERY) == 0) {
704 dri2_dpy->config = (__DRI2configQueryExtension *) extensions[i];
705 }
706 if (strcmp(extensions[i]->name, __DRI2_FENCE) == 0) {
707 dri2_dpy->fence = (__DRI2fenceExtension *) extensions[i];
708 }
709 if (strcmp(extensions[i]->name, __DRI2_RENDERER_QUERY) == 0) {
710 dri2_dpy->rendererQuery = (__DRI2rendererQueryExtension *) extensions[i];
711 }
712 }
713
714 dri2_setup_screen(disp);
715
716 return EGL_TRUE;
717
718 cleanup_dri_screen:
719 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
720
721 return EGL_FALSE;
722 }
723
724 /**
725 * Called via eglInitialize(), GLX_drv->API.Initialize().
726 */
727 static EGLBoolean
728 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
729 {
730 /* not until swrast_dri is supported */
731 if (disp->Options.UseFallback)
732 return EGL_FALSE;
733
734 switch (disp->Platform) {
735 #ifdef HAVE_SURFACELESS_PLATFORM
736 case _EGL_PLATFORM_SURFACELESS:
737 if (disp->Options.TestOnly)
738 return EGL_TRUE;
739 return dri2_initialize_surfaceless(drv, disp);
740 #endif
741
742 #ifdef HAVE_X11_PLATFORM
743 case _EGL_PLATFORM_X11:
744 if (disp->Options.TestOnly)
745 return EGL_TRUE;
746 return dri2_initialize_x11(drv, disp);
747 #endif
748
749 #ifdef HAVE_DRM_PLATFORM
750 case _EGL_PLATFORM_DRM:
751 if (disp->Options.TestOnly)
752 return EGL_TRUE;
753 return dri2_initialize_drm(drv, disp);
754 #endif
755 #ifdef HAVE_WAYLAND_PLATFORM
756 case _EGL_PLATFORM_WAYLAND:
757 if (disp->Options.TestOnly)
758 return EGL_TRUE;
759 return dri2_initialize_wayland(drv, disp);
760 #endif
761 #ifdef HAVE_ANDROID_PLATFORM
762 case _EGL_PLATFORM_ANDROID:
763 if (disp->Options.TestOnly)
764 return EGL_TRUE;
765 return dri2_initialize_android(drv, disp);
766 #endif
767
768 default:
769 _eglLog(_EGL_WARNING, "No EGL platform enabled.");
770 return EGL_FALSE;
771 }
772 }
773
774 /**
775 * Called via eglTerminate(), drv->API.Terminate().
776 */
777 static EGLBoolean
778 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
779 {
780 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
781 unsigned i;
782
783 _eglReleaseDisplayResources(drv, disp);
784 _eglCleanupDisplay(disp);
785
786 if (dri2_dpy->own_dri_screen)
787 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
788 if (dri2_dpy->fd)
789 close(dri2_dpy->fd);
790 if (dri2_dpy->driver)
791 dlclose(dri2_dpy->driver);
792 free(dri2_dpy->device_name);
793 free(dri2_dpy->driver_name);
794
795 switch (disp->Platform) {
796 #ifdef HAVE_X11_PLATFORM
797 case _EGL_PLATFORM_X11:
798 if (dri2_dpy->own_device) {
799 xcb_disconnect(dri2_dpy->conn);
800 }
801 break;
802 #endif
803 #ifdef HAVE_DRM_PLATFORM
804 case _EGL_PLATFORM_DRM:
805 if (dri2_dpy->own_device) {
806 gbm_device_destroy(&dri2_dpy->gbm_dri->base.base);
807 }
808 break;
809 #endif
810 #ifdef HAVE_WAYLAND_PLATFORM
811 case _EGL_PLATFORM_WAYLAND:
812 if (dri2_dpy->wl_drm)
813 wl_drm_destroy(dri2_dpy->wl_drm);
814 if (dri2_dpy->wl_shm)
815 wl_shm_destroy(dri2_dpy->wl_shm);
816 wl_registry_destroy(dri2_dpy->wl_registry);
817 wl_event_queue_destroy(dri2_dpy->wl_queue);
818 if (dri2_dpy->own_device) {
819 wl_display_disconnect(dri2_dpy->wl_dpy);
820 }
821 break;
822 #endif
823 default:
824 break;
825 }
826
827 /* The drm platform does not create the screen/driver_configs but reuses
828 * the ones from the gbm device. As such the gbm itself is responsible
829 * for the cleanup.
830 */
831 if (disp->Platform != _EGL_PLATFORM_DRM) {
832 for (i = 0; dri2_dpy->driver_configs[i]; i++)
833 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
834 free(dri2_dpy->driver_configs);
835 }
836 free(dri2_dpy);
837 disp->DriverData = NULL;
838
839 return EGL_TRUE;
840 }
841
842 /**
843 * Set the error code after a call to
844 * dri2_egl_display::dri2::createContextAttribs.
845 */
846 static void
847 dri2_create_context_attribs_error(int dri_error)
848 {
849 EGLint egl_error;
850
851 switch (dri_error) {
852 case __DRI_CTX_ERROR_SUCCESS:
853 return;
854
855 case __DRI_CTX_ERROR_NO_MEMORY:
856 egl_error = EGL_BAD_ALLOC;
857 break;
858
859 /* From the EGL_KHR_create_context spec, section "Errors":
860 *
861 * * If <config> does not support a client API context compatible
862 * with the requested API major and minor version, [...] context flags,
863 * and context reset notification behavior (for client API types where
864 * these attributes are supported), then an EGL_BAD_MATCH error is
865 * generated.
866 *
867 * * If an OpenGL ES context is requested and the values for
868 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
869 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
870 * is not defined, than an EGL_BAD_MATCH error is generated.
871 *
872 * * If an OpenGL context is requested, the requested version is
873 * greater than 3.2, and the value for attribute
874 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
875 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
876 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
877 * one of these bits set; or if the implementation does not support
878 * the requested profile, then an EGL_BAD_MATCH error is generated.
879 */
880 case __DRI_CTX_ERROR_BAD_API:
881 case __DRI_CTX_ERROR_BAD_VERSION:
882 case __DRI_CTX_ERROR_BAD_FLAG:
883 egl_error = EGL_BAD_MATCH;
884 break;
885
886 /* From the EGL_KHR_create_context spec, section "Errors":
887 *
888 * * If an attribute name or attribute value in <attrib_list> is not
889 * recognized (including unrecognized bits in bitmask attributes),
890 * then an EGL_BAD_ATTRIBUTE error is generated."
891 */
892 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
893 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
894 egl_error = EGL_BAD_ATTRIBUTE;
895 break;
896
897 default:
898 assert(0);
899 egl_error = EGL_BAD_MATCH;
900 break;
901 }
902
903 _eglError(egl_error, "dri2_create_context");
904 }
905
906 static bool
907 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
908 struct dri2_egl_display *dri2_dpy,
909 uint32_t *ctx_attribs,
910 unsigned *num_attribs)
911 {
912 int pos = 0;
913
914 assert(*num_attribs >= 8);
915
916 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
917 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
918 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
919 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
920
921 if (dri2_ctx->base.Flags != 0) {
922 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
923 * extension, don't even try to send it the robust-access flag.
924 * It may explode. Instead, generate the required EGL error here.
925 */
926 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
927 && !dri2_dpy->robustness) {
928 _eglError(EGL_BAD_MATCH, "eglCreateContext");
929 return false;
930 }
931
932 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
933 ctx_attribs[pos++] = dri2_ctx->base.Flags;
934 }
935
936 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
937 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
938 * extension, don't even try to send it a reset strategy. It may
939 * explode. Instead, generate the required EGL error here.
940 */
941 if (!dri2_dpy->robustness) {
942 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
943 return false;
944 }
945
946 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
947 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
948 }
949
950 *num_attribs = pos;
951
952 return true;
953 }
954
955 /**
956 * Called via eglCreateContext(), drv->API.CreateContext().
957 */
958 static _EGLContext *
959 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
960 _EGLContext *share_list, const EGLint *attrib_list)
961 {
962 struct dri2_egl_context *dri2_ctx;
963 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
964 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
965 __DRIcontext *shared =
966 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
967 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
968 const __DRIconfig *dri_config;
969 int api;
970
971 (void) drv;
972
973 dri2_ctx = malloc(sizeof *dri2_ctx);
974 if (!dri2_ctx) {
975 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
976 return NULL;
977 }
978
979 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
980 goto cleanup;
981
982 switch (dri2_ctx->base.ClientAPI) {
983 case EGL_OPENGL_ES_API:
984 switch (dri2_ctx->base.ClientMajorVersion) {
985 case 1:
986 api = __DRI_API_GLES;
987 break;
988 case 2:
989 api = __DRI_API_GLES2;
990 break;
991 case 3:
992 api = __DRI_API_GLES3;
993 break;
994 default:
995 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
996 free(dri2_ctx);
997 return NULL;
998 }
999 break;
1000 case EGL_OPENGL_API:
1001 if ((dri2_ctx->base.ClientMajorVersion >= 4
1002 || (dri2_ctx->base.ClientMajorVersion == 3
1003 && dri2_ctx->base.ClientMinorVersion >= 2))
1004 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1005 api = __DRI_API_OPENGL_CORE;
1006 else
1007 api = __DRI_API_OPENGL;
1008 break;
1009 default:
1010 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1011 free(dri2_ctx);
1012 return NULL;
1013 }
1014
1015 if (conf != NULL) {
1016 /* The config chosen here isn't necessarily
1017 * used for surfaces later.
1018 * A pixmap surface will use the single config.
1019 * This opportunity depends on disabling the
1020 * doubleBufferMode check in
1021 * src/mesa/main/context.c:check_compatible()
1022 */
1023 if (dri2_config->dri_double_config)
1024 dri_config = dri2_config->dri_double_config;
1025 else
1026 dri_config = dri2_config->dri_single_config;
1027
1028 /* EGL_WINDOW_BIT is set only when there is a dri_double_config. This
1029 * makes sure the back buffer will always be used.
1030 */
1031 if (conf->SurfaceType & EGL_WINDOW_BIT)
1032 dri2_ctx->base.WindowRenderBuffer = EGL_BACK_BUFFER;
1033 }
1034 else
1035 dri_config = NULL;
1036
1037 if (dri2_dpy->dri2) {
1038 if (dri2_dpy->dri2->base.version >= 3) {
1039 unsigned error;
1040 unsigned num_attribs = 8;
1041 uint32_t ctx_attribs[8];
1042
1043 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1044 &num_attribs))
1045 goto cleanup;
1046
1047 dri2_ctx->dri_context =
1048 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1049 api,
1050 dri_config,
1051 shared,
1052 num_attribs / 2,
1053 ctx_attribs,
1054 & error,
1055 dri2_ctx);
1056 dri2_create_context_attribs_error(error);
1057 } else {
1058 dri2_ctx->dri_context =
1059 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1060 api,
1061 dri_config,
1062 shared,
1063 dri2_ctx);
1064 }
1065 } else {
1066 assert(dri2_dpy->swrast);
1067 if (dri2_dpy->swrast->base.version >= 3) {
1068 unsigned error;
1069 unsigned num_attribs = 8;
1070 uint32_t ctx_attribs[8];
1071
1072 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1073 &num_attribs))
1074 goto cleanup;
1075
1076 dri2_ctx->dri_context =
1077 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1078 api,
1079 dri_config,
1080 shared,
1081 num_attribs / 2,
1082 ctx_attribs,
1083 & error,
1084 dri2_ctx);
1085 dri2_create_context_attribs_error(error);
1086 } else {
1087 dri2_ctx->dri_context =
1088 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1089 api,
1090 dri_config,
1091 shared,
1092 dri2_ctx);
1093 }
1094 }
1095
1096 if (!dri2_ctx->dri_context)
1097 goto cleanup;
1098
1099 return &dri2_ctx->base;
1100
1101 cleanup:
1102 free(dri2_ctx);
1103 return NULL;
1104 }
1105
1106 /**
1107 * Called via eglDestroyContext(), drv->API.DestroyContext().
1108 */
1109 static EGLBoolean
1110 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1111 {
1112 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1113 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1114
1115 if (_eglPutContext(ctx)) {
1116 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1117 free(dri2_ctx);
1118 }
1119
1120 return EGL_TRUE;
1121 }
1122
1123 /**
1124 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1125 */
1126 static EGLBoolean
1127 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1128 _EGLSurface *rsurf, _EGLContext *ctx)
1129 {
1130 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1131 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1132 struct dri2_egl_surface *dri2_dsurf = dri2_egl_surface(dsurf);
1133 struct dri2_egl_surface *dri2_rsurf = dri2_egl_surface(rsurf);
1134 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1135 _EGLContext *old_ctx;
1136 _EGLSurface *old_dsurf, *old_rsurf;
1137 __DRIdrawable *ddraw, *rdraw;
1138 __DRIcontext *cctx;
1139
1140 /* make new bindings */
1141 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1142 return EGL_FALSE;
1143
1144 /* flush before context switch */
1145 if (old_ctx && dri2_drv->glFlush)
1146 dri2_drv->glFlush();
1147
1148 ddraw = (dri2_dsurf) ? dri2_dsurf->dri_drawable : NULL;
1149 rdraw = (dri2_rsurf) ? dri2_rsurf->dri_drawable : NULL;
1150 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1151
1152 if (old_ctx) {
1153 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1154 dri2_dpy->core->unbindContext(old_cctx);
1155 }
1156
1157 if ((cctx == NULL && ddraw == NULL && rdraw == NULL) ||
1158 dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1159 if (old_dsurf)
1160 drv->API.DestroySurface(drv, disp, old_dsurf);
1161 if (old_rsurf)
1162 drv->API.DestroySurface(drv, disp, old_rsurf);
1163 if (old_ctx)
1164 drv->API.DestroyContext(drv, disp, old_ctx);
1165
1166 return EGL_TRUE;
1167 } else {
1168 /* undo the previous _eglBindContext */
1169 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &dsurf, &rsurf);
1170 assert(&dri2_ctx->base == ctx &&
1171 &dri2_dsurf->base == dsurf &&
1172 &dri2_rsurf->base == rsurf);
1173
1174 _eglPutSurface(dsurf);
1175 _eglPutSurface(rsurf);
1176 _eglPutContext(ctx);
1177
1178 _eglPutSurface(old_dsurf);
1179 _eglPutSurface(old_rsurf);
1180 _eglPutContext(old_ctx);
1181
1182 return EGL_FALSE;
1183 }
1184 }
1185
1186 /*
1187 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1188 */
1189 static _EGLProc
1190 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1191 {
1192 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
1193
1194 return dri2_drv->get_proc_address(procname);
1195 }
1196
1197 static _EGLSurface*
1198 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1199 _EGLConfig *conf, void *native_window,
1200 const EGLint *attrib_list)
1201 {
1202 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1203 return dri2_dpy->vtbl->create_window_surface(drv, dpy, conf, native_window,
1204 attrib_list);
1205 }
1206
1207 static _EGLSurface*
1208 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1209 _EGLConfig *conf, void *native_pixmap,
1210 const EGLint *attrib_list)
1211 {
1212 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1213 return dri2_dpy->vtbl->create_pixmap_surface(drv, dpy, conf, native_pixmap,
1214 attrib_list);
1215 }
1216
1217 static _EGLSurface*
1218 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *dpy,
1219 _EGLConfig *conf, const EGLint *attrib_list)
1220 {
1221 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1222 return dri2_dpy->vtbl->create_pbuffer_surface(drv, dpy, conf, attrib_list);
1223 }
1224
1225 static EGLBoolean
1226 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1227 {
1228 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1229 return dri2_dpy->vtbl->destroy_surface(drv, dpy, surf);
1230 }
1231
1232 static EGLBoolean
1233 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1234 EGLint interval)
1235 {
1236 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1237 return dri2_dpy->vtbl->swap_interval(drv, dpy, surf, interval);
1238 }
1239
1240 /**
1241 * Asks the client API to flush any rendering to the drawable so that we can
1242 * do our swapbuffers.
1243 */
1244 void
1245 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1246 {
1247 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1248 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
1249
1250 if (dri2_dpy->flush) {
1251 if (dri2_dpy->flush->base.version >= 4) {
1252 /* We know there's a current context because:
1253 *
1254 * "If surface is not bound to the calling thread’s current
1255 * context, an EGL_BAD_SURFACE error is generated."
1256 */
1257 _EGLContext *ctx = _eglGetCurrentContext();
1258 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1259
1260 /* From the EGL 1.4 spec (page 52):
1261 *
1262 * "The contents of ancillary buffers are always undefined
1263 * after calling eglSwapBuffers."
1264 */
1265 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1266 dri2_surf->dri_drawable,
1267 __DRI2_FLUSH_DRAWABLE |
1268 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1269 __DRI2_THROTTLE_SWAPBUFFER);
1270 } else {
1271 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1272 }
1273 }
1274 }
1275
1276 static EGLBoolean
1277 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1278 {
1279 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1280 return dri2_dpy->vtbl->swap_buffers(drv, dpy, surf);
1281 }
1282
1283 static EGLBoolean
1284 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *dpy,
1285 _EGLSurface *surf,
1286 const EGLint *rects, EGLint n_rects)
1287 {
1288 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1289 return dri2_dpy->vtbl->swap_buffers_with_damage(drv, dpy, surf,
1290 rects, n_rects);
1291 }
1292
1293 static EGLBoolean
1294 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1295 EGLint numRects, const EGLint *rects)
1296 {
1297 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1298 return dri2_dpy->vtbl->swap_buffers_region(drv, dpy, surf, numRects, rects);
1299 }
1300
1301 static EGLBoolean
1302 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1303 EGLint x, EGLint y, EGLint width, EGLint height)
1304 {
1305 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1306 return dri2_dpy->vtbl->post_sub_buffer(drv, dpy, surf, x, y, width, height);
1307 }
1308
1309 static EGLBoolean
1310 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
1311 void *native_pixmap_target)
1312 {
1313 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1314 return dri2_dpy->vtbl->copy_buffers(drv, dpy, surf, native_pixmap_target);
1315 }
1316
1317 static EGLint
1318 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf)
1319 {
1320 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1321 return dri2_dpy->vtbl->query_buffer_age(drv, dpy, surf);
1322 }
1323
1324 static EGLBoolean
1325 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1326 {
1327 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1328 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(ctx->DrawSurface);
1329
1330 (void) drv;
1331
1332 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1333 * we need to copy fake to real here.*/
1334
1335 if (dri2_dpy->flush != NULL)
1336 dri2_dpy->flush->flush(dri2_surf->dri_drawable);
1337
1338 return EGL_TRUE;
1339 }
1340
1341 static EGLBoolean
1342 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1343 {
1344 (void) drv;
1345 (void) disp;
1346
1347 if (engine != EGL_CORE_NATIVE_ENGINE)
1348 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1349 /* glXWaitX(); */
1350
1351 return EGL_TRUE;
1352 }
1353
1354 static EGLBoolean
1355 dri2_bind_tex_image(_EGLDriver *drv,
1356 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1357 {
1358 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1359 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1360 struct dri2_egl_context *dri2_ctx;
1361 _EGLContext *ctx;
1362 GLint format, target;
1363
1364 ctx = _eglGetCurrentContext();
1365 dri2_ctx = dri2_egl_context(ctx);
1366
1367 if (!_eglBindTexImage(drv, disp, surf, buffer))
1368 return EGL_FALSE;
1369
1370 switch (dri2_surf->base.TextureFormat) {
1371 case EGL_TEXTURE_RGB:
1372 format = __DRI_TEXTURE_FORMAT_RGB;
1373 break;
1374 case EGL_TEXTURE_RGBA:
1375 format = __DRI_TEXTURE_FORMAT_RGBA;
1376 break;
1377 default:
1378 assert(!"Unexpected texture format in dri2_bind_tex_image()");
1379 format = __DRI_TEXTURE_FORMAT_RGBA;
1380 }
1381
1382 switch (dri2_surf->base.TextureTarget) {
1383 case EGL_TEXTURE_2D:
1384 target = GL_TEXTURE_2D;
1385 break;
1386 default:
1387 target = GL_TEXTURE_2D;
1388 assert(!"Unexpected texture target in dri2_bind_tex_image()");
1389 }
1390
1391 (*dri2_dpy->tex_buffer->setTexBuffer2)(dri2_ctx->dri_context,
1392 target, format,
1393 dri2_surf->dri_drawable);
1394
1395 return EGL_TRUE;
1396 }
1397
1398 static EGLBoolean
1399 dri2_release_tex_image(_EGLDriver *drv,
1400 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1401 {
1402 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1403 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1404 struct dri2_egl_context *dri2_ctx;
1405 _EGLContext *ctx;
1406 GLint target;
1407
1408 ctx = _eglGetCurrentContext();
1409 dri2_ctx = dri2_egl_context(ctx);
1410
1411 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
1412 return EGL_FALSE;
1413
1414 switch (dri2_surf->base.TextureTarget) {
1415 case EGL_TEXTURE_2D:
1416 target = GL_TEXTURE_2D;
1417 break;
1418 default:
1419 assert(0);
1420 }
1421
1422 if (dri2_dpy->tex_buffer->base.version >= 3 &&
1423 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
1424 (*dri2_dpy->tex_buffer->releaseTexBuffer)(dri2_ctx->dri_context,
1425 target,
1426 dri2_surf->dri_drawable);
1427 }
1428
1429 return EGL_TRUE;
1430 }
1431
1432 static _EGLImage*
1433 dri2_create_image(_EGLDriver *drv, _EGLDisplay *dpy, _EGLContext *ctx,
1434 EGLenum target, EGLClientBuffer buffer,
1435 const EGLint *attr_list)
1436 {
1437 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1438 return dri2_dpy->vtbl->create_image(drv, dpy, ctx, target, buffer,
1439 attr_list);
1440 }
1441
1442 static _EGLImage *
1443 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
1444 {
1445 struct dri2_egl_image *dri2_img;
1446
1447 if (dri_image == NULL) {
1448 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1449 return NULL;
1450 }
1451
1452 dri2_img = malloc(sizeof *dri2_img);
1453 if (!dri2_img) {
1454 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
1455 return NULL;
1456 }
1457
1458 if (!_eglInitImage(&dri2_img->base, disp)) {
1459 free(dri2_img);
1460 return NULL;
1461 }
1462
1463 dri2_img->dri_image = dri_image;
1464
1465 return &dri2_img->base;
1466 }
1467
1468 static _EGLImage *
1469 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
1470 EGLClientBuffer buffer,
1471 const EGLint *attr_list)
1472 {
1473 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1474 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1475 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
1476 __DRIimage *dri_image;
1477
1478 if (renderbuffer == 0) {
1479 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1480 return EGL_NO_IMAGE_KHR;
1481 }
1482
1483 dri_image =
1484 dri2_dpy->image->createImageFromRenderbuffer(dri2_ctx->dri_context,
1485 renderbuffer, NULL);
1486
1487 return dri2_create_image_from_dri(disp, dri_image);
1488 }
1489
1490 #ifdef HAVE_WAYLAND_PLATFORM
1491
1492 /* This structure describes how a wl_buffer maps to one or more
1493 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
1494 * offsets and strides of the planes in the buffer. This table maps a
1495 * wl_drm format code to a description of the planes in the buffer
1496 * that lets us create a __DRIimage for each of the planes. */
1497
1498 static const struct wl_drm_components_descriptor {
1499 uint32_t dri_components;
1500 EGLint components;
1501 int nplanes;
1502 } wl_drm_components[] = {
1503 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
1504 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
1505 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
1506 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
1507 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
1508 };
1509
1510 static _EGLImage *
1511 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1512 EGLClientBuffer _buffer,
1513 const EGLint *attr_list)
1514 {
1515 struct wl_drm_buffer *buffer;
1516 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1517 const struct wl_drm_components_descriptor *f;
1518 __DRIimage *dri_image;
1519 _EGLImageAttribs attrs;
1520 EGLint err;
1521 int32_t plane;
1522
1523 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
1524 (struct wl_resource *) _buffer);
1525 if (!buffer)
1526 return NULL;
1527
1528 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1529 plane = attrs.PlaneWL;
1530 if (err != EGL_SUCCESS) {
1531 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1532 return NULL;
1533 }
1534
1535 f = buffer->driver_format;
1536 if (plane < 0 || plane >= f->nplanes) {
1537 _eglError(EGL_BAD_PARAMETER,
1538 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
1539 return NULL;
1540 }
1541
1542 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
1543
1544 if (dri_image == NULL) {
1545 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
1546 return NULL;
1547 }
1548
1549 return dri2_create_image_from_dri(disp, dri_image);
1550 }
1551 #endif
1552
1553 static EGLBoolean
1554 dri2_get_sync_values_chromium(_EGLDisplay *dpy, _EGLSurface *surf,
1555 EGLuint64KHR *ust, EGLuint64KHR *msc,
1556 EGLuint64KHR *sbc)
1557 {
1558 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1559 return dri2_dpy->vtbl->get_sync_values(dpy, surf, ust, msc, sbc);
1560 }
1561
1562 /**
1563 * Set the error code after a call to
1564 * dri2_egl_image::dri_image::createImageFromTexture.
1565 */
1566 static void
1567 dri2_create_image_khr_texture_error(int dri_error)
1568 {
1569 EGLint egl_error;
1570
1571 switch (dri_error) {
1572 case __DRI_IMAGE_ERROR_SUCCESS:
1573 return;
1574
1575 case __DRI_IMAGE_ERROR_BAD_ALLOC:
1576 egl_error = EGL_BAD_ALLOC;
1577 break;
1578
1579 case __DRI_IMAGE_ERROR_BAD_MATCH:
1580 egl_error = EGL_BAD_MATCH;
1581 break;
1582
1583 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
1584 egl_error = EGL_BAD_PARAMETER;
1585 break;
1586
1587 case __DRI_IMAGE_ERROR_BAD_ACCESS:
1588 egl_error = EGL_BAD_ACCESS;
1589 break;
1590
1591 default:
1592 assert(0);
1593 egl_error = EGL_BAD_MATCH;
1594 break;
1595 }
1596
1597 _eglError(egl_error, "dri2_create_image_khr_texture");
1598 }
1599
1600 static _EGLImage *
1601 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
1602 EGLenum target,
1603 EGLClientBuffer buffer,
1604 const EGLint *attr_list)
1605 {
1606 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1607 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1608 struct dri2_egl_image *dri2_img;
1609 GLuint texture = (GLuint) (uintptr_t) buffer;
1610 _EGLImageAttribs attrs;
1611 GLuint depth;
1612 GLenum gl_target;
1613 unsigned error;
1614
1615 if (texture == 0) {
1616 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1617 return EGL_NO_IMAGE_KHR;
1618 }
1619
1620 if (_eglParseImageAttribList(&attrs, disp, attr_list) != EGL_SUCCESS)
1621 return EGL_NO_IMAGE_KHR;
1622
1623 switch (target) {
1624 case EGL_GL_TEXTURE_2D_KHR:
1625 depth = 0;
1626 gl_target = GL_TEXTURE_2D;
1627 break;
1628 case EGL_GL_TEXTURE_3D_KHR:
1629 if (disp->Extensions.KHR_gl_texture_3D_image) {
1630 depth = attrs.GLTextureZOffset;
1631 gl_target = GL_TEXTURE_3D;
1632 break;
1633 }
1634 else {
1635 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1636 return EGL_NO_IMAGE_KHR;
1637 }
1638 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
1639 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
1640 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
1641 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
1642 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
1643 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
1644 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
1645 gl_target = GL_TEXTURE_CUBE_MAP;
1646 break;
1647 default:
1648 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
1649 return EGL_NO_IMAGE_KHR;
1650 }
1651
1652 dri2_img = malloc(sizeof *dri2_img);
1653 if (!dri2_img) {
1654 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1655 return EGL_NO_IMAGE_KHR;
1656 }
1657
1658 if (!_eglInitImage(&dri2_img->base, disp)) {
1659 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1660 free(dri2_img);
1661 return EGL_NO_IMAGE_KHR;
1662 }
1663
1664 dri2_img->dri_image =
1665 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
1666 gl_target,
1667 texture,
1668 depth,
1669 attrs.GLTextureLevel,
1670 &error,
1671 dri2_img);
1672 dri2_create_image_khr_texture_error(error);
1673
1674 if (!dri2_img->dri_image) {
1675 free(dri2_img);
1676 return EGL_NO_IMAGE_KHR;
1677 }
1678 return &dri2_img->base;
1679 }
1680
1681 static struct wl_buffer*
1682 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *dpy,
1683 _EGLImage *img)
1684 {
1685 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
1686 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, dpy, img);
1687 }
1688
1689 #ifdef HAVE_LIBDRM
1690 static _EGLImage *
1691 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
1692 EGLClientBuffer buffer, const EGLint *attr_list)
1693 {
1694 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1695 EGLint format, name, pitch, err;
1696 _EGLImageAttribs attrs;
1697 __DRIimage *dri_image;
1698
1699 name = (EGLint) (uintptr_t) buffer;
1700
1701 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1702 if (err != EGL_SUCCESS)
1703 return NULL;
1704
1705 if (attrs.Width <= 0 || attrs.Height <= 0 ||
1706 attrs.DRMBufferStrideMESA <= 0) {
1707 _eglError(EGL_BAD_PARAMETER,
1708 "bad width, height or stride");
1709 return NULL;
1710 }
1711
1712 switch (attrs.DRMBufferFormatMESA) {
1713 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
1714 format = __DRI_IMAGE_FORMAT_ARGB8888;
1715 pitch = attrs.DRMBufferStrideMESA;
1716 break;
1717 default:
1718 _eglError(EGL_BAD_PARAMETER,
1719 "dri2_create_image_khr: unsupported pixmap depth");
1720 return NULL;
1721 }
1722
1723 dri_image =
1724 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
1725 attrs.Width,
1726 attrs.Height,
1727 format,
1728 name,
1729 pitch,
1730 NULL);
1731
1732 return dri2_create_image_from_dri(disp, dri_image);
1733 }
1734
1735 static EGLBoolean
1736 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
1737 {
1738 unsigned i;
1739
1740 /**
1741 * The spec says:
1742 *
1743 * "Required attributes and their values are as follows:
1744 *
1745 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
1746 *
1747 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
1748 * by drm_fourcc.h and used as the pixel_format parameter of the
1749 * drm_mode_fb_cmd2 ioctl."
1750 *
1751 * and
1752 *
1753 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1754 * incomplete, EGL_BAD_PARAMETER is generated."
1755 */
1756 if (attrs->Width <= 0 || attrs->Height <= 0 ||
1757 !attrs->DMABufFourCC.IsPresent) {
1758 _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
1759 return EGL_FALSE;
1760 }
1761
1762 /**
1763 * Also:
1764 *
1765 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
1766 * specified for a plane's pitch or offset isn't supported by EGL,
1767 * EGL_BAD_ACCESS is generated."
1768 */
1769 for (i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
1770 if (attrs->DMABufPlanePitches[i].IsPresent &&
1771 attrs->DMABufPlanePitches[i].Value <= 0) {
1772 _eglError(EGL_BAD_ACCESS, "invalid pitch");
1773 return EGL_FALSE;
1774 }
1775 }
1776
1777 return EGL_TRUE;
1778 }
1779
1780 /* Returns the total number of file descriptors. Zero indicates an error. */
1781 static unsigned
1782 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
1783 {
1784 unsigned i, plane_n;
1785
1786 switch (attrs->DMABufFourCC.Value) {
1787 case DRM_FORMAT_R8:
1788 case DRM_FORMAT_RG88:
1789 case DRM_FORMAT_GR88:
1790 case DRM_FORMAT_RGB332:
1791 case DRM_FORMAT_BGR233:
1792 case DRM_FORMAT_XRGB4444:
1793 case DRM_FORMAT_XBGR4444:
1794 case DRM_FORMAT_RGBX4444:
1795 case DRM_FORMAT_BGRX4444:
1796 case DRM_FORMAT_ARGB4444:
1797 case DRM_FORMAT_ABGR4444:
1798 case DRM_FORMAT_RGBA4444:
1799 case DRM_FORMAT_BGRA4444:
1800 case DRM_FORMAT_XRGB1555:
1801 case DRM_FORMAT_XBGR1555:
1802 case DRM_FORMAT_RGBX5551:
1803 case DRM_FORMAT_BGRX5551:
1804 case DRM_FORMAT_ARGB1555:
1805 case DRM_FORMAT_ABGR1555:
1806 case DRM_FORMAT_RGBA5551:
1807 case DRM_FORMAT_BGRA5551:
1808 case DRM_FORMAT_RGB565:
1809 case DRM_FORMAT_BGR565:
1810 case DRM_FORMAT_RGB888:
1811 case DRM_FORMAT_BGR888:
1812 case DRM_FORMAT_XRGB8888:
1813 case DRM_FORMAT_XBGR8888:
1814 case DRM_FORMAT_RGBX8888:
1815 case DRM_FORMAT_BGRX8888:
1816 case DRM_FORMAT_ARGB8888:
1817 case DRM_FORMAT_ABGR8888:
1818 case DRM_FORMAT_RGBA8888:
1819 case DRM_FORMAT_BGRA8888:
1820 case DRM_FORMAT_XRGB2101010:
1821 case DRM_FORMAT_XBGR2101010:
1822 case DRM_FORMAT_RGBX1010102:
1823 case DRM_FORMAT_BGRX1010102:
1824 case DRM_FORMAT_ARGB2101010:
1825 case DRM_FORMAT_ABGR2101010:
1826 case DRM_FORMAT_RGBA1010102:
1827 case DRM_FORMAT_BGRA1010102:
1828 case DRM_FORMAT_YUYV:
1829 case DRM_FORMAT_YVYU:
1830 case DRM_FORMAT_UYVY:
1831 case DRM_FORMAT_VYUY:
1832 plane_n = 1;
1833 break;
1834 case DRM_FORMAT_NV12:
1835 case DRM_FORMAT_NV21:
1836 case DRM_FORMAT_NV16:
1837 case DRM_FORMAT_NV61:
1838 plane_n = 2;
1839 break;
1840 case DRM_FORMAT_YUV410:
1841 case DRM_FORMAT_YVU410:
1842 case DRM_FORMAT_YUV411:
1843 case DRM_FORMAT_YVU411:
1844 case DRM_FORMAT_YUV420:
1845 case DRM_FORMAT_YVU420:
1846 case DRM_FORMAT_YUV422:
1847 case DRM_FORMAT_YVU422:
1848 case DRM_FORMAT_YUV444:
1849 case DRM_FORMAT_YVU444:
1850 plane_n = 3;
1851 break;
1852 default:
1853 _eglError(EGL_BAD_ATTRIBUTE, "invalid format");
1854 return 0;
1855 }
1856
1857 /**
1858 * The spec says:
1859 *
1860 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
1861 * incomplete, EGL_BAD_PARAMETER is generated."
1862 */
1863 for (i = 0; i < plane_n; ++i) {
1864 if (!attrs->DMABufPlaneFds[i].IsPresent ||
1865 !attrs->DMABufPlaneOffsets[i].IsPresent ||
1866 !attrs->DMABufPlanePitches[i].IsPresent) {
1867 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
1868 return 0;
1869 }
1870 }
1871
1872 /**
1873 * The spec also says:
1874 *
1875 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
1876 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
1877 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
1878 * attributes are specified."
1879 */
1880 for (i = plane_n; i < 3; ++i) {
1881 if (attrs->DMABufPlaneFds[i].IsPresent ||
1882 attrs->DMABufPlaneOffsets[i].IsPresent ||
1883 attrs->DMABufPlanePitches[i].IsPresent) {
1884 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
1885 return 0;
1886 }
1887 }
1888
1889 return plane_n;
1890 }
1891
1892 /**
1893 * The spec says:
1894 *
1895 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
1896 * EGL will take a reference to the dma_buf(s) which it will release at any
1897 * time while the EGLDisplay is initialized. It is the responsibility of the
1898 * application to close the dma_buf file descriptors."
1899 *
1900 * Therefore we must never close or otherwise modify the file descriptors.
1901 */
1902 static _EGLImage *
1903 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
1904 EGLClientBuffer buffer, const EGLint *attr_list)
1905 {
1906 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1907 _EGLImage *res;
1908 EGLint err;
1909 _EGLImageAttribs attrs;
1910 __DRIimage *dri_image;
1911 unsigned num_fds;
1912 unsigned i;
1913 int fds[3];
1914 int pitches[3];
1915 int offsets[3];
1916 unsigned error;
1917
1918 /**
1919 * The spec says:
1920 *
1921 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
1922 * error EGL_BAD_PARAMETER is generated."
1923 */
1924 if (buffer != NULL) {
1925 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
1926 return NULL;
1927 }
1928
1929 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1930 if (err != EGL_SUCCESS) {
1931 _eglError(err, "bad attribute");
1932 return NULL;
1933 }
1934
1935 if (!dri2_check_dma_buf_attribs(&attrs))
1936 return NULL;
1937
1938 num_fds = dri2_check_dma_buf_format(&attrs);
1939 if (!num_fds)
1940 return NULL;
1941
1942 for (i = 0; i < num_fds; ++i) {
1943 fds[i] = attrs.DMABufPlaneFds[i].Value;
1944 pitches[i] = attrs.DMABufPlanePitches[i].Value;
1945 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
1946 }
1947
1948 dri_image =
1949 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
1950 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
1951 fds, num_fds, pitches, offsets,
1952 attrs.DMABufYuvColorSpaceHint.Value,
1953 attrs.DMABufSampleRangeHint.Value,
1954 attrs.DMABufChromaHorizontalSiting.Value,
1955 attrs.DMABufChromaVerticalSiting.Value,
1956 &error,
1957 NULL);
1958 dri2_create_image_khr_texture_error(error);
1959
1960 if (!dri_image)
1961 return EGL_NO_IMAGE_KHR;
1962
1963 res = dri2_create_image_from_dri(disp, dri_image);
1964
1965 return res;
1966 }
1967 static _EGLImage *
1968 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
1969 const EGLint *attr_list)
1970 {
1971 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1972 struct dri2_egl_image *dri2_img;
1973 _EGLImageAttribs attrs;
1974 unsigned int dri_use, valid_mask;
1975 int format;
1976 EGLint err = EGL_SUCCESS;
1977
1978 (void) drv;
1979
1980 dri2_img = malloc(sizeof *dri2_img);
1981 if (!dri2_img) {
1982 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
1983 return EGL_NO_IMAGE_KHR;
1984 }
1985
1986 if (!attr_list) {
1987 err = EGL_BAD_PARAMETER;
1988 goto cleanup_img;
1989 }
1990
1991 if (!_eglInitImage(&dri2_img->base, disp)) {
1992 err = EGL_BAD_PARAMETER;
1993 goto cleanup_img;
1994 }
1995
1996 err = _eglParseImageAttribList(&attrs, disp, attr_list);
1997 if (err != EGL_SUCCESS)
1998 goto cleanup_img;
1999
2000 if (attrs.Width <= 0 || attrs.Height <= 0) {
2001 _eglLog(_EGL_WARNING, "bad width or height (%dx%d)",
2002 attrs.Width, attrs.Height);
2003 goto cleanup_img;
2004 }
2005
2006 switch (attrs.DRMBufferFormatMESA) {
2007 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2008 format = __DRI_IMAGE_FORMAT_ARGB8888;
2009 break;
2010 default:
2011 _eglLog(_EGL_WARNING, "bad image format value 0x%04x",
2012 attrs.DRMBufferFormatMESA);
2013 goto cleanup_img;
2014 }
2015
2016 valid_mask =
2017 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2018 EGL_DRM_BUFFER_USE_SHARE_MESA |
2019 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2020 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2021 _eglLog(_EGL_WARNING, "bad image use bit 0x%04x",
2022 attrs.DRMBufferUseMESA & ~valid_mask);
2023 goto cleanup_img;
2024 }
2025
2026 dri_use = 0;
2027 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2028 dri_use |= __DRI_IMAGE_USE_SHARE;
2029 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2030 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2031 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2032 dri_use |= __DRI_IMAGE_USE_CURSOR;
2033
2034 dri2_img->dri_image =
2035 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2036 attrs.Width, attrs.Height,
2037 format, dri_use, dri2_img);
2038 if (dri2_img->dri_image == NULL) {
2039 err = EGL_BAD_ALLOC;
2040 goto cleanup_img;
2041 }
2042
2043 return &dri2_img->base;
2044
2045 cleanup_img:
2046 free(dri2_img);
2047 _eglError(err, "dri2_create_drm_image_mesa");
2048
2049 return EGL_NO_IMAGE_KHR;
2050 }
2051
2052 static EGLBoolean
2053 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2054 EGLint *name, EGLint *handle, EGLint *stride)
2055 {
2056 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2057 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2058
2059 (void) drv;
2060
2061 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2062 __DRI_IMAGE_ATTRIB_NAME, name)) {
2063 _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2064 return EGL_FALSE;
2065 }
2066
2067 if (handle)
2068 dri2_dpy->image->queryImage(dri2_img->dri_image,
2069 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2070
2071 if (stride)
2072 dri2_dpy->image->queryImage(dri2_img->dri_image,
2073 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2074
2075 return EGL_TRUE;
2076 }
2077
2078 static EGLBoolean
2079 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2080 _EGLImage *img,
2081 EGLint *fourcc, EGLint *nplanes,
2082 EGLuint64KHR *modifiers)
2083 {
2084 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2085 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2086
2087 (void) drv;
2088
2089
2090 if (nplanes)
2091 dri2_dpy->image->queryImage(dri2_img->dri_image,
2092 __DRI_IMAGE_ATTRIB_NUM_PLANES, nplanes);
2093 if (fourcc)
2094 dri2_dpy->image->queryImage(dri2_img->dri_image,
2095 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2096
2097 if (modifiers)
2098 *modifiers = 0;
2099
2100 return EGL_TRUE;
2101 }
2102
2103 static EGLBoolean
2104 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2105 int *fds, EGLint *strides, EGLint *offsets)
2106 {
2107 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2108 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2109
2110 (void) drv;
2111
2112 /* rework later to provide multiple fds/strides/offsets */
2113 if (fds)
2114 dri2_dpy->image->queryImage(dri2_img->dri_image,
2115 __DRI_IMAGE_ATTRIB_FD, fds);
2116
2117 if (strides)
2118 dri2_dpy->image->queryImage(dri2_img->dri_image,
2119 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2120
2121 if (offsets)
2122 offsets[0] = 0;
2123
2124 return EGL_TRUE;
2125 }
2126
2127 #endif
2128
2129 _EGLImage *
2130 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2131 _EGLContext *ctx, EGLenum target,
2132 EGLClientBuffer buffer, const EGLint *attr_list)
2133 {
2134 (void) drv;
2135
2136 switch (target) {
2137 case EGL_GL_TEXTURE_2D_KHR:
2138 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2139 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2140 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2141 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2142 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2143 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2144 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2145 case EGL_GL_TEXTURE_3D_KHR:
2146 if (disp->Extensions.KHR_gl_texture_3D_image) {
2147 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2148 }
2149 else {
2150 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2151 return EGL_NO_IMAGE_KHR;
2152 }
2153 case EGL_GL_RENDERBUFFER_KHR:
2154 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2155 #ifdef HAVE_LIBDRM
2156 case EGL_DRM_BUFFER_MESA:
2157 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2158 case EGL_LINUX_DMA_BUF_EXT:
2159 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
2160 #endif
2161 #ifdef HAVE_WAYLAND_PLATFORM
2162 case EGL_WAYLAND_BUFFER_WL:
2163 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
2164 #endif
2165 default:
2166 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2167 return EGL_NO_IMAGE_KHR;
2168 }
2169 }
2170
2171 static EGLBoolean
2172 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
2173 {
2174 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2175 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
2176
2177 (void) drv;
2178
2179 dri2_dpy->image->destroyImage(dri2_img->dri_image);
2180 free(dri2_img);
2181
2182 return EGL_TRUE;
2183 }
2184
2185 #ifdef HAVE_WAYLAND_PLATFORM
2186
2187 static void
2188 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
2189 struct wl_drm_buffer *buffer)
2190 {
2191 _EGLDisplay *disp = user_data;
2192 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2193 __DRIimage *img;
2194 int i, dri_components = 0;
2195
2196 if (fd == -1)
2197 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
2198 buffer->width,
2199 buffer->height,
2200 buffer->format,
2201 (int*)&name, 1,
2202 buffer->stride,
2203 buffer->offset,
2204 NULL);
2205 else
2206 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
2207 buffer->width,
2208 buffer->height,
2209 buffer->format,
2210 &fd, 1,
2211 buffer->stride,
2212 buffer->offset,
2213 NULL);
2214
2215 if (img == NULL)
2216 return;
2217
2218 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
2219
2220 buffer->driver_format = NULL;
2221 for (i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
2222 if (wl_drm_components[i].dri_components == dri_components)
2223 buffer->driver_format = &wl_drm_components[i];
2224
2225 if (buffer->driver_format == NULL)
2226 dri2_dpy->image->destroyImage(img);
2227 else
2228 buffer->driver_buffer = img;
2229 }
2230
2231 static void
2232 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
2233 {
2234 _EGLDisplay *disp = user_data;
2235 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2236
2237 dri2_dpy->image->destroyImage(buffer->driver_buffer);
2238 }
2239
2240 static struct wayland_drm_callbacks wl_drm_callbacks = {
2241 .authenticate = NULL,
2242 .reference_buffer = dri2_wl_reference_buffer,
2243 .release_buffer = dri2_wl_release_buffer
2244 };
2245
2246 static EGLBoolean
2247 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2248 struct wl_display *wl_dpy)
2249 {
2250 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2251 int flags = 0;
2252 uint64_t cap;
2253
2254 (void) drv;
2255
2256 if (dri2_dpy->wl_server_drm)
2257 return EGL_FALSE;
2258
2259 wl_drm_callbacks.authenticate =
2260 (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate;
2261
2262 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
2263 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
2264 dri2_dpy->image->base.version >= 7 &&
2265 dri2_dpy->image->createImageFromFds != NULL)
2266 flags |= WAYLAND_DRM_PRIME;
2267
2268 dri2_dpy->wl_server_drm =
2269 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
2270 &wl_drm_callbacks, disp, flags);
2271
2272 if (!dri2_dpy->wl_server_drm)
2273 return EGL_FALSE;
2274
2275 #ifdef HAVE_DRM_PLATFORM
2276 /* We have to share the wl_drm instance with gbm, so gbm can convert
2277 * wl_buffers to gbm bos. */
2278 if (dri2_dpy->gbm_dri)
2279 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
2280 #endif
2281
2282 return EGL_TRUE;
2283 }
2284
2285 static EGLBoolean
2286 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
2287 struct wl_display *wl_dpy)
2288 {
2289 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2290
2291 (void) drv;
2292
2293 if (!dri2_dpy->wl_server_drm)
2294 return EGL_FALSE;
2295
2296 wayland_drm_uninit(dri2_dpy->wl_server_drm);
2297 dri2_dpy->wl_server_drm = NULL;
2298
2299 return EGL_TRUE;
2300 }
2301
2302 static EGLBoolean
2303 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
2304 struct wl_resource *buffer_resource,
2305 EGLint attribute, EGLint *value)
2306 {
2307 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2308 struct wl_drm_buffer *buffer;
2309 const struct wl_drm_components_descriptor *format;
2310
2311 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
2312 if (!buffer)
2313 return EGL_FALSE;
2314
2315 format = buffer->driver_format;
2316 switch (attribute) {
2317 case EGL_TEXTURE_FORMAT:
2318 *value = format->components;
2319 return EGL_TRUE;
2320 case EGL_WIDTH:
2321 *value = buffer->width;
2322 return EGL_TRUE;
2323 case EGL_HEIGHT:
2324 *value = buffer->height;
2325 return EGL_TRUE;
2326 }
2327
2328 return EGL_FALSE;
2329 }
2330 #endif
2331
2332 static void
2333 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
2334 {
2335 p_atomic_inc(&sync->refcount);
2336 }
2337
2338 static void
2339 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
2340 struct dri2_egl_sync *dri2_sync)
2341 {
2342 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
2343 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
2344 free(dri2_sync);
2345 }
2346 }
2347
2348 static _EGLSync *
2349 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *dpy,
2350 EGLenum type, const EGLint *attrib_list,
2351 const EGLAttrib *attrib_list64)
2352 {
2353 _EGLContext *ctx = _eglGetCurrentContext();
2354 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2355 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2356 struct dri2_egl_sync *dri2_sync;
2357
2358 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
2359 if (!dri2_sync) {
2360 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2361 return NULL;
2362 }
2363
2364 if (!_eglInitSync(&dri2_sync->base, dpy, type, attrib_list,
2365 attrib_list64)) {
2366 free(dri2_sync);
2367 return NULL;
2368 }
2369
2370 switch (type) {
2371 case EGL_SYNC_FENCE_KHR:
2372 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
2373 if (!dri2_sync->fence) {
2374 /* Why did it fail? DRI doesn't return an error code, so we emit
2375 * a generic EGL error that doesn't communicate user error.
2376 */
2377 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
2378 free(dri2_sync);
2379 return NULL;
2380 }
2381 break;
2382
2383 case EGL_SYNC_CL_EVENT_KHR:
2384 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
2385 dri2_dpy->dri_screen,
2386 dri2_sync->base.CLEvent);
2387 /* this can only happen if the cl_event passed in is invalid. */
2388 if (!dri2_sync->fence) {
2389 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
2390 free(dri2_sync);
2391 return NULL;
2392 }
2393
2394 /* the initial status must be "signaled" if the cl_event is signaled */
2395 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2396 dri2_sync->fence, 0, 0))
2397 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2398 break;
2399 }
2400
2401 p_atomic_set(&dri2_sync->refcount, 1);
2402 return &dri2_sync->base;
2403 }
2404
2405 static EGLBoolean
2406 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2407 {
2408 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2409 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2410
2411 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2412 return EGL_TRUE;
2413 }
2414
2415 static EGLint
2416 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync,
2417 EGLint flags, EGLTime timeout)
2418 {
2419 _EGLContext *ctx = _eglGetCurrentContext();
2420 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2421 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2422 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2423 unsigned wait_flags = 0;
2424 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
2425
2426 if (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
2427 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
2428
2429 /* the sync object should take a reference while waiting */
2430 dri2_egl_ref_sync(dri2_sync);
2431
2432 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
2433 dri2_sync->fence, wait_flags,
2434 timeout))
2435 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
2436 else
2437 ret = EGL_TIMEOUT_EXPIRED_KHR;
2438
2439 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
2440 return ret;
2441 }
2442
2443 static EGLint
2444 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSync *sync)
2445 {
2446 _EGLContext *ctx = _eglGetCurrentContext();
2447 struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
2448 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2449 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
2450
2451 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
2452 dri2_sync->fence, 0);
2453 return EGL_TRUE;
2454 }
2455
2456 static void
2457 dri2_unload(_EGLDriver *drv)
2458 {
2459 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2460
2461 if (dri2_drv->handle)
2462 dlclose(dri2_drv->handle);
2463 free(dri2_drv);
2464 }
2465
2466 static EGLBoolean
2467 dri2_load(_EGLDriver *drv)
2468 {
2469 struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
2470 #ifdef HAVE_ANDROID_PLATFORM
2471 const char *libname = "libglapi.so";
2472 #elif defined(__APPLE__)
2473 const char *libname = "libglapi.0.dylib";
2474 #else
2475 const char *libname = "libglapi.so.0";
2476 #endif
2477 void *handle;
2478
2479 /* RTLD_GLOBAL to make sure glapi symbols are visible to DRI drivers */
2480 handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
2481 if (handle) {
2482 dri2_drv->get_proc_address = (_EGLProc (*)(const char *))
2483 dlsym(handle, "_glapi_get_proc_address");
2484 if (!dri2_drv->get_proc_address || !libname) {
2485 /* no need to keep a reference */
2486 dlclose(handle);
2487 handle = NULL;
2488 }
2489 }
2490
2491 /* if glapi is not available, loading DRI drivers will fail */
2492 if (!dri2_drv->get_proc_address) {
2493 _eglLog(_EGL_WARNING, "DRI2: failed to find _glapi_get_proc_address");
2494 return EGL_FALSE;
2495 }
2496
2497 dri2_drv->glFlush = (void (*)(void))
2498 dri2_drv->get_proc_address("glFlush");
2499
2500 dri2_drv->handle = handle;
2501
2502 return EGL_TRUE;
2503 }
2504
2505 /**
2506 * This is the main entrypoint into the driver, called by libEGL.
2507 * Create a new _EGLDriver object and init its dispatch table.
2508 */
2509 _EGLDriver *
2510 _eglBuiltInDriverDRI2(const char *args)
2511 {
2512 struct dri2_egl_driver *dri2_drv;
2513
2514 (void) args;
2515
2516 dri2_drv = calloc(1, sizeof *dri2_drv);
2517 if (!dri2_drv)
2518 return NULL;
2519
2520 if (!dri2_load(&dri2_drv->base)) {
2521 free(dri2_drv);
2522 return NULL;
2523 }
2524
2525 _eglInitDriverFallbacks(&dri2_drv->base);
2526 dri2_drv->base.API.Initialize = dri2_initialize;
2527 dri2_drv->base.API.Terminate = dri2_terminate;
2528 dri2_drv->base.API.CreateContext = dri2_create_context;
2529 dri2_drv->base.API.DestroyContext = dri2_destroy_context;
2530 dri2_drv->base.API.MakeCurrent = dri2_make_current;
2531 dri2_drv->base.API.CreateWindowSurface = dri2_create_window_surface;
2532 dri2_drv->base.API.CreatePixmapSurface = dri2_create_pixmap_surface;
2533 dri2_drv->base.API.CreatePbufferSurface = dri2_create_pbuffer_surface;
2534 dri2_drv->base.API.DestroySurface = dri2_destroy_surface;
2535 dri2_drv->base.API.GetProcAddress = dri2_get_proc_address;
2536 dri2_drv->base.API.WaitClient = dri2_wait_client;
2537 dri2_drv->base.API.WaitNative = dri2_wait_native;
2538 dri2_drv->base.API.BindTexImage = dri2_bind_tex_image;
2539 dri2_drv->base.API.ReleaseTexImage = dri2_release_tex_image;
2540 dri2_drv->base.API.SwapInterval = dri2_swap_interval;
2541 dri2_drv->base.API.SwapBuffers = dri2_swap_buffers;
2542 dri2_drv->base.API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
2543 dri2_drv->base.API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
2544 dri2_drv->base.API.PostSubBufferNV = dri2_post_sub_buffer;
2545 dri2_drv->base.API.CopyBuffers = dri2_copy_buffers,
2546 dri2_drv->base.API.QueryBufferAge = dri2_query_buffer_age;
2547 dri2_drv->base.API.CreateImageKHR = dri2_create_image;
2548 dri2_drv->base.API.DestroyImageKHR = dri2_destroy_image_khr;
2549 dri2_drv->base.API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
2550 #ifdef HAVE_LIBDRM
2551 dri2_drv->base.API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
2552 dri2_drv->base.API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
2553 dri2_drv->base.API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
2554 dri2_drv->base.API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
2555 #endif
2556 #ifdef HAVE_WAYLAND_PLATFORM
2557 dri2_drv->base.API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
2558 dri2_drv->base.API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
2559 dri2_drv->base.API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
2560 #endif
2561 dri2_drv->base.API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
2562 dri2_drv->base.API.CreateSyncKHR = dri2_create_sync;
2563 dri2_drv->base.API.ClientWaitSyncKHR = dri2_client_wait_sync;
2564 dri2_drv->base.API.WaitSyncKHR = dri2_server_wait_sync;
2565 dri2_drv->base.API.DestroySyncKHR = dri2_destroy_sync;
2566
2567 dri2_drv->base.Name = "DRI2";
2568 dri2_drv->base.Unload = dri2_unload;
2569
2570 return &dri2_drv->base;
2571 }