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egl: Implement getImage/putImage on pbuffer swrast.
[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 <stdbool.h>
29 #include <stdint.h>
30 #include <stdbool.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <stdio.h>
34 #include <limits.h>
35 #include <dlfcn.h>
36 #include <fcntl.h>
37 #include <errno.h>
38 #include <unistd.h>
39 #include <c11/threads.h>
40 #include <time.h>
41 #ifdef HAVE_LIBDRM
42 #include <xf86drm.h>
43 #include "drm-uapi/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-client.h>
52 #include "wayland-drm.h"
53 #include "wayland-drm-client-protocol.h"
54 #include "linux-dmabuf-unstable-v1-client-protocol.h"
55 #endif
56
57 #ifdef HAVE_X11_PLATFORM
58 #include "X11/Xlibint.h"
59 #endif
60
61 #include "egldefines.h"
62 #include "egl_dri2.h"
63 #include "GL/mesa_glinterop.h"
64 #include "loader/loader.h"
65 #include "util/u_atomic.h"
66 #include "util/u_vector.h"
67 #include "mapi/glapi/glapi.h"
68 #include "util/bitscan.h"
69 #include "util/u_math.h"
70
71 /* Additional definitions not yet in the drm_fourcc.h.
72 */
73 #ifndef DRM_FORMAT_P010
74 #define DRM_FORMAT_P010 fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cb:Cr plane 10 bits per channel */
75 #endif
76
77 #ifndef DRM_FORMAT_P012
78 #define DRM_FORMAT_P012 fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cb:Cr plane 12 bits per channel */
79 #endif
80
81 #ifndef DRM_FORMAT_P016
82 #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cb:Cr plane 16 bits per channel */
83 #endif
84
85 #define NUM_ATTRIBS 12
86
87 static void
88 dri_set_background_context(void *loaderPrivate)
89 {
90 _EGLContext *ctx = _eglGetCurrentContext();
91 _EGLThreadInfo *t = _eglGetCurrentThread();
92
93 _eglBindContextToThread(ctx, t);
94 }
95
96 static void
97 dri2_gl_flush()
98 {
99 static void (*glFlush)(void);
100 static mtx_t glFlushMutex = _MTX_INITIALIZER_NP;
101
102 mtx_lock(&glFlushMutex);
103 if (!glFlush)
104 glFlush = _glapi_get_proc_address("glFlush");
105 mtx_unlock(&glFlushMutex);
106
107 /* if glFlush is not available things are horribly broken */
108 if (!glFlush) {
109 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
110 return;
111 }
112
113 glFlush();
114 }
115
116 static GLboolean
117 dri_is_thread_safe(void *loaderPrivate)
118 {
119 struct dri2_egl_surface *dri2_surf = loaderPrivate;
120 UNUSED _EGLDisplay *display = dri2_surf->base.Resource.Display;
121
122 #ifdef HAVE_X11_PLATFORM
123 Display *xdpy = (Display*)display->PlatformDisplay;
124
125 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
126 * platform
127 *
128 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
129 * It wll be NULL if XInitThreads wasn't called.
130 */
131 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
132 return false;
133 #endif
134
135 #ifdef HAVE_WAYLAND_PLATFORM
136 if (display->Platform == _EGL_PLATFORM_WAYLAND)
137 return true;
138 #endif
139
140 return true;
141 }
142
143 const __DRIbackgroundCallableExtension background_callable_extension = {
144 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
145
146 .setBackgroundContext = dri_set_background_context,
147 .isThreadSafe = dri_is_thread_safe,
148 };
149
150 const __DRIuseInvalidateExtension use_invalidate = {
151 .base = { __DRI_USE_INVALIDATE, 1 }
152 };
153
154 static void
155 dri2_get_pbuffer_drawable_info(__DRIdrawable * draw,
156 int *x, int *y, int *w, int *h,
157 void *loaderPrivate)
158 {
159 struct dri2_egl_surface *dri2_surf = loaderPrivate;
160
161 *x = *y = 0;
162 *w = dri2_surf->base.Width;
163 *h = dri2_surf->base.Height;
164 }
165
166 static int
167 dri2_get_bytes_per_pixel(struct dri2_egl_surface *dri2_surf)
168 {
169 const int depth = dri2_surf->base.Config->BufferSize;
170 return depth ? util_next_power_of_two(depth / 8) : 0;
171 }
172
173 static void
174 dri2_put_image(__DRIdrawable * draw, int op,
175 int x, int y, int w, int h,
176 char *data, void *loaderPrivate)
177 {
178 struct dri2_egl_surface *dri2_surf = loaderPrivate;
179 const int bpp = dri2_get_bytes_per_pixel(dri2_surf);
180 const int width = dri2_surf->base.Width;
181 const int height = dri2_surf->base.Height;
182 const int dst_stride = width*bpp;
183 const int src_stride = w*bpp;
184 const int x_offset = x*bpp;
185 int copy_width = src_stride;
186
187 if (!dri2_surf->swrast_device_buffer)
188 dri2_surf->swrast_device_buffer = malloc(height*dst_stride);
189
190 if (dri2_surf->swrast_device_buffer) {
191 const char *src = data;
192 char *dst = dri2_surf->swrast_device_buffer;
193
194 dst += x_offset;
195 dst += y*dst_stride;
196
197 /* Drivers are allowed to submit OOB PutImage requests, so clip here. */
198 if (copy_width > dst_stride - x_offset)
199 copy_width = dst_stride - x_offset;
200 if (h > height - y)
201 h = height - y;
202
203 for (; 0 < h; --h) {
204 memcpy(dst, src, copy_width);
205 dst += dst_stride;
206 src += src_stride;
207 }
208 }
209 }
210
211 static void
212 dri2_get_image(__DRIdrawable * read,
213 int x, int y, int w, int h,
214 char *data, void *loaderPrivate)
215 {
216 struct dri2_egl_surface *dri2_surf = loaderPrivate;
217 const int bpp = dri2_get_bytes_per_pixel(dri2_surf);
218 const int width = dri2_surf->base.Width;
219 const int height = dri2_surf->base.Height;
220 const int src_stride = width*bpp;
221 const int dst_stride = w*bpp;
222 const int x_offset = x*bpp;
223 int copy_width = dst_stride;
224 const char *src = dri2_surf->swrast_device_buffer;
225 char *dst = data;
226
227 if (!src) {
228 memset(data, 0, copy_width * h);
229 return;
230 }
231
232 src += x_offset;
233 src += y*src_stride;
234
235 /* Drivers are allowed to submit OOB GetImage requests, so clip here. */
236 if (copy_width > src_stride - x_offset)
237 copy_width = src_stride - x_offset;
238 if (h > height - y)
239 h = height - y;
240
241 for (; 0 < h; --h) {
242 memcpy(dst, src, copy_width);
243 src += src_stride;
244 dst += dst_stride;
245 }
246
247 }
248
249 /* HACK: technically we should have swrast_null, instead of these.
250 */
251 const __DRIswrastLoaderExtension swrast_pbuffer_loader_extension = {
252 .base = { __DRI_SWRAST_LOADER, 1 },
253 .getDrawableInfo = dri2_get_pbuffer_drawable_info,
254 .putImage = dri2_put_image,
255 .getImage = dri2_get_image,
256 };
257
258 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
259 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
260 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
261 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
262 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
263 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
264 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
265 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
266 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
267 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
268 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
269 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
270 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
271 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
272 };
273
274 const __DRIconfig *
275 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
276 EGLenum colorspace)
277 {
278 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
279 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
280
281 return conf->dri_config[double_buffer][srgb];
282 }
283
284 static EGLBoolean
285 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
286 {
287 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
288 return EGL_FALSE;
289
290 if (!_eglMatchConfig(conf, criteria))
291 return EGL_FALSE;
292
293 return EGL_TRUE;
294 }
295
296 void
297 dri2_get_shifts_and_sizes(const __DRIcoreExtension *core,
298 const __DRIconfig *config, int *shifts,
299 unsigned int *sizes)
300 {
301 unsigned int mask;
302
303 if (core->getConfigAttrib(config, __DRI_ATTRIB_RED_SHIFT, (unsigned int *)&shifts[0])) {
304 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_SHIFT, (unsigned int *)&shifts[1]);
305 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_SHIFT, (unsigned int *)&shifts[2]);
306 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_SHIFT, (unsigned int *)&shifts[3]);
307 } else {
308 /* Driver isn't exposing shifts, so convert masks to shifts */
309 core->getConfigAttrib(config, __DRI_ATTRIB_RED_MASK, &mask);
310 shifts[0] = ffs(mask) - 1;
311 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_MASK, &mask);
312 shifts[1] = ffs(mask) - 1;
313 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_MASK, &mask);
314 shifts[2] = ffs(mask) - 1;
315 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_MASK, &mask);
316 shifts[3] = ffs(mask) - 1;
317 }
318
319 core->getConfigAttrib(config, __DRI_ATTRIB_RED_SIZE, &sizes[0]);
320 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_SIZE, &sizes[1]);
321 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_SIZE, &sizes[2]);
322 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_SIZE, &sizes[3]);
323 }
324
325 void
326 dri2_get_render_type_float(const __DRIcoreExtension *core,
327 const __DRIconfig *config,
328 bool *is_float)
329 {
330 unsigned int render_type;
331
332 core->getConfigAttrib(config, __DRI_ATTRIB_RENDER_TYPE, &render_type);
333 *is_float = (render_type & __DRI_ATTRIB_FLOAT_BIT) ? true : false;
334 }
335
336 struct dri2_egl_config *
337 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
338 EGLint surface_type, const EGLint *attr_list,
339 const int *rgba_shifts, const unsigned int *rgba_sizes)
340 {
341 struct dri2_egl_config *conf;
342 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
343 _EGLConfig base;
344 unsigned int attrib, value, double_buffer;
345 bool srgb = false;
346 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
347 int dri_shifts[4] = { -1, -1, -1, -1 };
348 unsigned int dri_sizes[4] = { 0, 0, 0, 0 };
349 _EGLConfig *matching_config;
350 EGLint num_configs = 0;
351 EGLint config_id;
352
353 _eglInitConfig(&base, disp, id);
354
355 double_buffer = 0;
356 bind_to_texture_rgb = 0;
357 bind_to_texture_rgba = 0;
358
359 for (int i = 0; i < __DRI_ATTRIB_MAX; ++i) {
360 if (!dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib, &value))
361 break;
362
363 switch (attrib) {
364 case __DRI_ATTRIB_RENDER_TYPE:
365 if (value & __DRI_ATTRIB_FLOAT_BIT)
366 base.ComponentType = EGL_COLOR_COMPONENT_TYPE_FLOAT_EXT;
367 if (value & __DRI_ATTRIB_RGBA_BIT)
368 value = EGL_RGB_BUFFER;
369 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
370 value = EGL_LUMINANCE_BUFFER;
371 else
372 return NULL;
373 base.ColorBufferType = value;
374 break;
375
376 case __DRI_ATTRIB_CONFIG_CAVEAT:
377 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
378 value = EGL_NON_CONFORMANT_CONFIG;
379 else if (value & __DRI_ATTRIB_SLOW_BIT)
380 value = EGL_SLOW_CONFIG;
381 else
382 value = EGL_NONE;
383 base.ConfigCaveat = value;
384 break;
385
386 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
387 bind_to_texture_rgb = value;
388 break;
389
390 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
391 bind_to_texture_rgba = value;
392 break;
393
394 case __DRI_ATTRIB_DOUBLE_BUFFER:
395 double_buffer = value;
396 break;
397
398 case __DRI_ATTRIB_RED_SIZE:
399 dri_sizes[0] = value;
400 base.RedSize = value;
401 break;
402
403 case __DRI_ATTRIB_RED_MASK:
404 dri_shifts[0] = ffs(value) - 1;
405 break;
406
407 case __DRI_ATTRIB_RED_SHIFT:
408 dri_shifts[0] = value;
409 break;
410
411 case __DRI_ATTRIB_GREEN_SIZE:
412 dri_sizes[1] = value;
413 base.GreenSize = value;
414 break;
415
416 case __DRI_ATTRIB_GREEN_MASK:
417 dri_shifts[1] = ffs(value) - 1;
418 break;
419
420 case __DRI_ATTRIB_GREEN_SHIFT:
421 dri_shifts[1] = value;
422 break;
423
424 case __DRI_ATTRIB_BLUE_SIZE:
425 dri_sizes[2] = value;
426 base.BlueSize = value;
427 break;
428
429 case __DRI_ATTRIB_BLUE_MASK:
430 dri_shifts[2] = ffs(value) - 1;
431 break;
432
433 case __DRI_ATTRIB_BLUE_SHIFT:
434 dri_shifts[2] = value;
435 break;
436
437 case __DRI_ATTRIB_ALPHA_SIZE:
438 dri_sizes[3] = value;
439 base.AlphaSize = value;
440 break;
441
442 case __DRI_ATTRIB_ALPHA_MASK:
443 dri_shifts[3] = ffs(value) - 1;
444 break;
445
446 case __DRI_ATTRIB_ALPHA_SHIFT:
447 dri_shifts[3] = value;
448 break;
449
450 case __DRI_ATTRIB_ACCUM_RED_SIZE:
451 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
452 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
453 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
454 /* Don't expose visuals with the accumulation buffer. */
455 if (value > 0)
456 return NULL;
457 break;
458
459 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
460 srgb = value != 0;
461 if (!disp->Extensions.KHR_gl_colorspace && srgb)
462 return NULL;
463 break;
464
465 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
466 base.MaxPbufferWidth = _EGL_MAX_PBUFFER_WIDTH;
467 break;
468 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
469 base.MaxPbufferHeight = _EGL_MAX_PBUFFER_HEIGHT;
470 break;
471 case __DRI_ATTRIB_MUTABLE_RENDER_BUFFER:
472 if (disp->Extensions.KHR_mutable_render_buffer)
473 surface_type |= EGL_MUTABLE_RENDER_BUFFER_BIT_KHR;
474 break;
475 default:
476 key = dri2_to_egl_attribute_map[attrib];
477 if (key != 0)
478 _eglSetConfigKey(&base, key, value);
479 break;
480 }
481 }
482
483 if (attr_list)
484 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
485 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
486
487 if (rgba_shifts && memcmp(rgba_shifts, dri_shifts, sizeof(dri_shifts)))
488 return NULL;
489
490 if (rgba_sizes && memcmp(rgba_sizes, dri_sizes, sizeof(dri_sizes)))
491 return NULL;
492
493 base.NativeRenderable = EGL_TRUE;
494
495 base.SurfaceType = surface_type;
496 if (surface_type & (EGL_PBUFFER_BIT |
497 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
498 base.BindToTextureRGB = bind_to_texture_rgb;
499 if (base.AlphaSize > 0)
500 base.BindToTextureRGBA = bind_to_texture_rgba;
501 }
502
503 if (double_buffer) {
504 surface_type &= ~EGL_PIXMAP_BIT;
505 }
506
507 /* No support for pbuffer + MSAA for now.
508 *
509 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
510 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
511 */
512 if (base.Samples) {
513 surface_type &= ~EGL_PBUFFER_BIT;
514 }
515
516 if (!surface_type)
517 return NULL;
518
519 base.RenderableType = disp->ClientAPIs;
520 base.Conformant = disp->ClientAPIs;
521
522 base.MinSwapInterval = dri2_dpy->min_swap_interval;
523 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
524
525 if (!_eglValidateConfig(&base, EGL_FALSE)) {
526 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
527 return NULL;
528 }
529
530 config_id = base.ConfigID;
531 base.ConfigID = EGL_DONT_CARE;
532 base.SurfaceType = EGL_DONT_CARE;
533 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
534 (_EGLArrayForEach) dri2_match_config, &base);
535
536 if (num_configs == 1) {
537 conf = (struct dri2_egl_config *) matching_config;
538
539 if (!conf->dri_config[double_buffer][srgb])
540 conf->dri_config[double_buffer][srgb] = dri_config;
541 else
542 /* a similar config type is already added (unlikely) => discard */
543 return NULL;
544 }
545 else if (num_configs == 0) {
546 conf = calloc(1, sizeof *conf);
547 if (conf == NULL)
548 return NULL;
549
550 conf->dri_config[double_buffer][srgb] = dri_config;
551
552 memcpy(&conf->base, &base, sizeof base);
553 conf->base.SurfaceType = 0;
554 conf->base.ConfigID = config_id;
555
556 _eglLinkConfig(&conf->base);
557 }
558 else {
559 unreachable("duplicates should not be possible");
560 return NULL;
561 }
562
563 conf->base.SurfaceType |= surface_type;
564
565 return conf;
566 }
567
568 __DRIimage *
569 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
570 {
571 _EGLDisplay *disp = data;
572 struct dri2_egl_image *dri2_img;
573 _EGLImage *img;
574
575 (void) screen;
576
577 img = _eglLookupImage(image, disp);
578 if (img == NULL) {
579 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
580 return NULL;
581 }
582
583 dri2_img = dri2_egl_image(image);
584
585 return dri2_img->dri_image;
586 }
587
588 const __DRIimageLookupExtension image_lookup_extension = {
589 .base = { __DRI_IMAGE_LOOKUP, 1 },
590
591 .lookupEGLImage = dri2_lookup_egl_image
592 };
593
594 struct dri2_extension_match {
595 const char *name;
596 int version;
597 int offset;
598 };
599
600 static const struct dri2_extension_match dri3_driver_extensions[] = {
601 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
602 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
603 { NULL, 0, 0 }
604 };
605
606 static const struct dri2_extension_match dri2_driver_extensions[] = {
607 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
608 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
609 { NULL, 0, 0 }
610 };
611
612 static const struct dri2_extension_match dri2_core_extensions[] = {
613 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
614 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
615 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
616 { NULL, 0, 0 }
617 };
618
619 static const struct dri2_extension_match swrast_driver_extensions[] = {
620 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
621 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
622 { NULL, 0, 0 }
623 };
624
625 static const struct dri2_extension_match swrast_core_extensions[] = {
626 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
627 { NULL, 0, 0 }
628 };
629
630 static const struct dri2_extension_match optional_driver_extensions[] = {
631 { __DRI_CONFIG_OPTIONS, 1, offsetof(struct dri2_egl_display, configOptions) },
632 { NULL, 0, 0 }
633 };
634
635 static const struct dri2_extension_match optional_core_extensions[] = {
636 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
637 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
638 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
639 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
640 { __DRI2_BUFFER_DAMAGE, 1, offsetof(struct dri2_egl_display, buffer_damage) },
641 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
642 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
643 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
644 { __DRI2_FLUSH_CONTROL, 1, offsetof(struct dri2_egl_display, flush_control) },
645 { __DRI2_BLOB, 1, offsetof(struct dri2_egl_display, blob) },
646 { __DRI_MUTABLE_RENDER_BUFFER_DRIVER, 1, offsetof(struct dri2_egl_display, mutable_render_buffer) },
647 { NULL, 0, 0 }
648 };
649
650 static EGLBoolean
651 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
652 const struct dri2_extension_match *matches,
653 const __DRIextension **extensions,
654 bool optional)
655 {
656 int ret = EGL_TRUE;
657 void *field;
658
659 for (int i = 0; extensions[i]; i++) {
660 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
661 for (int j = 0; matches[j].name; j++) {
662 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
663 extensions[i]->version >= matches[j].version) {
664 field = ((char *) dri2_dpy + matches[j].offset);
665 *(const __DRIextension **) field = extensions[i];
666 _eglLog(_EGL_INFO, "found extension %s version %d",
667 extensions[i]->name, extensions[i]->version);
668 break;
669 }
670 }
671 }
672
673 for (int j = 0; matches[j].name; j++) {
674 field = ((char *) dri2_dpy + matches[j].offset);
675 if (*(const __DRIextension **) field == NULL) {
676 if (optional) {
677 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
678 matches[j].name, matches[j].version);
679 } else {
680 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
681 matches[j].name, matches[j].version);
682 ret = EGL_FALSE;
683 }
684 }
685 }
686
687 return ret;
688 }
689
690 static const __DRIextension **
691 dri2_open_driver(_EGLDisplay *disp)
692 {
693 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
694 static const char *search_path_vars[] = {
695 "LIBGL_DRIVERS_PATH",
696 NULL,
697 };
698
699 return loader_open_driver(dri2_dpy->driver_name,
700 &dri2_dpy->driver,
701 search_path_vars);
702 }
703
704 static EGLBoolean
705 dri2_load_driver_common(_EGLDisplay *disp,
706 const struct dri2_extension_match *driver_extensions)
707 {
708 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
709 const __DRIextension **extensions;
710
711 extensions = dri2_open_driver(disp);
712 if (!extensions)
713 return EGL_FALSE;
714
715 if (!dri2_bind_extensions(dri2_dpy, driver_extensions, extensions, false))
716 return EGL_FALSE;
717
718 dri2_dpy->driver_extensions = extensions;
719
720 dri2_bind_extensions(dri2_dpy, optional_driver_extensions, extensions, true);
721
722 return EGL_TRUE;
723 }
724
725 EGLBoolean
726 dri2_load_driver(_EGLDisplay *disp)
727 {
728 return dri2_load_driver_common(disp, dri2_driver_extensions);
729 }
730
731 EGLBoolean
732 dri2_load_driver_dri3(_EGLDisplay *disp)
733 {
734 return dri2_load_driver_common(disp, dri3_driver_extensions);
735 }
736
737 EGLBoolean
738 dri2_load_driver_swrast(_EGLDisplay *disp)
739 {
740 return dri2_load_driver_common(disp, swrast_driver_extensions);
741 }
742
743 static unsigned
744 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
745 {
746 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
747 unsigned int value = 0;
748
749 if (!rendererQuery ||
750 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
751 return 0;
752
753 return value;
754 }
755
756 static const char *
757 dri2_query_driver_name(_EGLDisplay *disp)
758 {
759 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
760 return dri2_dpy->driver_name;
761 }
762
763 static char *
764 dri2_query_driver_config(_EGLDisplay *disp)
765 {
766 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
767 const __DRIconfigOptionsExtension *ext = dri2_dpy->configOptions;
768
769 if (ext->base.version >= 2)
770 return ext->getXml(dri2_dpy->driver_name);
771
772 return strdup(ext->xml);
773 }
774
775
776 void
777 dri2_setup_screen(_EGLDisplay *disp)
778 {
779 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
780 unsigned int api_mask;
781
782 /*
783 * EGL 1.5 specification defines the default value to 1. Moreover,
784 * eglSwapInterval() is required to clamp requested value to the supported
785 * range. Since the default value is implicitly assumed to be supported,
786 * use it as both minimum and maximum for the platforms that do not allow
787 * changing the interval. Platforms, which allow it (e.g. x11, wayland)
788 * override these values already.
789 */
790 dri2_dpy->min_swap_interval = 1;
791 dri2_dpy->max_swap_interval = 1;
792 dri2_dpy->default_swap_interval = 1;
793
794 if (dri2_dpy->image_driver) {
795 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
796 } else if (dri2_dpy->dri2) {
797 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
798 } else {
799 assert(dri2_dpy->swrast);
800 api_mask = 1 << __DRI_API_OPENGL |
801 1 << __DRI_API_GLES |
802 1 << __DRI_API_GLES2 |
803 1 << __DRI_API_GLES3;
804 }
805
806 disp->ClientAPIs = 0;
807 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
808 disp->ClientAPIs |= EGL_OPENGL_BIT;
809 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
810 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
811 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
812 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
813 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
814 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
815
816 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
817 disp->Extensions.KHR_no_config_context = EGL_TRUE;
818 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
819
820 if (dri2_dpy->configOptions) {
821 disp->Extensions.MESA_query_driver = EGL_TRUE;
822 }
823
824 /* Report back to EGL the bitmask of priorities supported */
825 disp->Extensions.IMG_context_priority =
826 dri2_renderer_query_integer(dri2_dpy,
827 __DRI2_RENDERER_HAS_CONTEXT_PRIORITY);
828
829 disp->Extensions.EXT_pixel_format_float = EGL_TRUE;
830
831 if (dri2_renderer_query_integer(dri2_dpy,
832 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
833 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
834
835 if (dri2_dpy->image_driver ||
836 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
837 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
838 disp->Extensions.KHR_create_context = EGL_TRUE;
839
840 if (dri2_dpy->robustness)
841 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
842 }
843
844 if (dri2_dpy->no_error)
845 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
846
847 if (dri2_dpy->fence) {
848 disp->Extensions.KHR_fence_sync = EGL_TRUE;
849 disp->Extensions.KHR_wait_sync = EGL_TRUE;
850 if (dri2_dpy->fence->get_fence_from_cl_event)
851 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
852 if (dri2_dpy->fence->base.version >= 2 &&
853 dri2_dpy->fence->get_capabilities) {
854 unsigned capabilities =
855 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
856 disp->Extensions.ANDROID_native_fence_sync =
857 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
858 }
859 }
860
861 if (dri2_dpy->blob)
862 disp->Extensions.ANDROID_blob_cache = EGL_TRUE;
863
864 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
865
866 if (dri2_dpy->image) {
867 if (dri2_dpy->image->base.version >= 10 &&
868 dri2_dpy->image->getCapabilities != NULL) {
869 int capabilities;
870
871 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
872 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
873
874 if (dri2_dpy->image->base.version >= 11)
875 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
876 } else {
877 disp->Extensions.MESA_drm_image = EGL_TRUE;
878 if (dri2_dpy->image->base.version >= 11)
879 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
880 }
881
882 disp->Extensions.KHR_image_base = EGL_TRUE;
883 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
884 if (dri2_dpy->image->base.version >= 5 &&
885 dri2_dpy->image->createImageFromTexture) {
886 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
887 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
888
889 if (dri2_renderer_query_integer(dri2_dpy,
890 __DRI2_RENDERER_HAS_TEXTURE_3D))
891 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
892 }
893 #ifdef HAVE_LIBDRM
894 if (dri2_dpy->image->base.version >= 8 &&
895 dri2_dpy->image->createImageFromDmaBufs) {
896 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
897 }
898 if (dri2_dpy->image->base.version >= 15 &&
899 dri2_dpy->image->createImageFromDmaBufs2 &&
900 dri2_dpy->image->queryDmaBufFormats &&
901 dri2_dpy->image->queryDmaBufModifiers) {
902 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
903 }
904 #endif
905 }
906
907 if (dri2_dpy->flush_control)
908 disp->Extensions.KHR_context_flush_control = EGL_TRUE;
909
910 if (dri2_dpy->buffer_damage && dri2_dpy->buffer_damage->set_damage_region)
911 disp->Extensions.KHR_partial_update = EGL_TRUE;
912 }
913
914 void
915 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
916 {
917 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
918 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
919
920 /* Allow driconf to override applications.*/
921 if (dri2_dpy->config)
922 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
923 "vblank_mode", &vblank_mode);
924 switch (vblank_mode) {
925 case DRI_CONF_VBLANK_NEVER:
926 dri2_dpy->min_swap_interval = 0;
927 dri2_dpy->max_swap_interval = 0;
928 dri2_dpy->default_swap_interval = 0;
929 break;
930 case DRI_CONF_VBLANK_ALWAYS_SYNC:
931 dri2_dpy->min_swap_interval = 1;
932 dri2_dpy->max_swap_interval = max_swap_interval;
933 dri2_dpy->default_swap_interval = 1;
934 break;
935 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
936 dri2_dpy->min_swap_interval = 0;
937 dri2_dpy->max_swap_interval = max_swap_interval;
938 dri2_dpy->default_swap_interval = 0;
939 break;
940 default:
941 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
942 dri2_dpy->min_swap_interval = 0;
943 dri2_dpy->max_swap_interval = max_swap_interval;
944 dri2_dpy->default_swap_interval = 1;
945 break;
946 }
947 }
948
949 /* All platforms but DRM call this function to create the screen and populate
950 * the driver_configs. DRM inherits that information from its display - GBM.
951 */
952 EGLBoolean
953 dri2_create_screen(_EGLDisplay *disp)
954 {
955 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
956
957 if (dri2_dpy->image_driver) {
958 dri2_dpy->dri_screen =
959 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
960 dri2_dpy->loader_extensions,
961 dri2_dpy->driver_extensions,
962 &dri2_dpy->driver_configs,
963 disp);
964 } else if (dri2_dpy->dri2) {
965 if (dri2_dpy->dri2->base.version >= 4) {
966 dri2_dpy->dri_screen =
967 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
968 dri2_dpy->loader_extensions,
969 dri2_dpy->driver_extensions,
970 &dri2_dpy->driver_configs, disp);
971 } else {
972 dri2_dpy->dri_screen =
973 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
974 dri2_dpy->loader_extensions,
975 &dri2_dpy->driver_configs, disp);
976 }
977 } else {
978 assert(dri2_dpy->swrast);
979 if (dri2_dpy->swrast->base.version >= 4) {
980 dri2_dpy->dri_screen =
981 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
982 dri2_dpy->driver_extensions,
983 &dri2_dpy->driver_configs, disp);
984 } else {
985 dri2_dpy->dri_screen =
986 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
987 &dri2_dpy->driver_configs, disp);
988 }
989 }
990
991 if (dri2_dpy->dri_screen == NULL) {
992 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
993 return EGL_FALSE;
994 }
995
996 dri2_dpy->own_dri_screen = true;
997 return EGL_TRUE;
998 }
999
1000 EGLBoolean
1001 dri2_setup_extensions(_EGLDisplay *disp)
1002 {
1003 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1004 const struct dri2_extension_match *mandatory_core_extensions;
1005 const __DRIextension **extensions;
1006
1007 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
1008
1009 if (dri2_dpy->image_driver || dri2_dpy->dri2)
1010 mandatory_core_extensions = dri2_core_extensions;
1011 else
1012 mandatory_core_extensions = swrast_core_extensions;
1013
1014 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
1015 return EGL_FALSE;
1016
1017 #ifdef HAVE_DRI3_MODIFIERS
1018 dri2_dpy->multibuffers_available =
1019 (dri2_dpy->dri3_major_version > 1 || (dri2_dpy->dri3_major_version == 1 &&
1020 dri2_dpy->dri3_minor_version >= 2)) &&
1021 (dri2_dpy->present_major_version > 1 || (dri2_dpy->present_major_version == 1 &&
1022 dri2_dpy->present_minor_version >= 2)) &&
1023 (dri2_dpy->image && dri2_dpy->image->base.version >= 15);
1024 #endif
1025
1026 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
1027 return EGL_TRUE;
1028 }
1029
1030 /**
1031 * Called via eglInitialize(), GLX_drv->API.Initialize().
1032 *
1033 * This must be guaranteed to be called exactly once, even if eglInitialize is
1034 * called many times (without a eglTerminate in between).
1035 */
1036 static EGLBoolean
1037 dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
1038 {
1039 EGLBoolean ret = EGL_FALSE;
1040 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1041
1042 /* In the case where the application calls eglMakeCurrent(context1),
1043 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
1044 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
1045 * initialized, as we need it to be able to free context1 correctly.
1046 *
1047 * It would probably be safest to forcibly release the display with
1048 * dri2_display_release, to make sure the display is reinitialized correctly.
1049 * However, the EGL spec states that we need to keep a reference to the
1050 * current context (so we cannot call dri2_make_current(NULL)), and therefore
1051 * we would leak context1 as we would be missing the old display connection
1052 * to free it up correctly.
1053 */
1054 if (dri2_dpy) {
1055 dri2_dpy->ref_count++;
1056 return EGL_TRUE;
1057 }
1058
1059 loader_set_logger(_eglLog);
1060
1061 switch (disp->Platform) {
1062 case _EGL_PLATFORM_SURFACELESS:
1063 ret = dri2_initialize_surfaceless(drv, disp);
1064 break;
1065 case _EGL_PLATFORM_DEVICE:
1066 ret = dri2_initialize_device(drv, disp);
1067 break;
1068 case _EGL_PLATFORM_X11:
1069 ret = dri2_initialize_x11(drv, disp);
1070 break;
1071 case _EGL_PLATFORM_DRM:
1072 ret = dri2_initialize_drm(drv, disp);
1073 break;
1074 case _EGL_PLATFORM_WAYLAND:
1075 ret = dri2_initialize_wayland(drv, disp);
1076 break;
1077 case _EGL_PLATFORM_ANDROID:
1078 ret = dri2_initialize_android(drv, disp);
1079 break;
1080 default:
1081 unreachable("Callers ensure we cannot get here.");
1082 return EGL_FALSE;
1083 }
1084
1085 if (!ret)
1086 return EGL_FALSE;
1087
1088 dri2_dpy = dri2_egl_display(disp);
1089 dri2_dpy->ref_count++;
1090
1091 return EGL_TRUE;
1092 }
1093
1094 /**
1095 * Decrement display reference count, and free up display if necessary.
1096 */
1097 static void
1098 dri2_display_release(_EGLDisplay *disp)
1099 {
1100 struct dri2_egl_display *dri2_dpy;
1101
1102 if (!disp)
1103 return;
1104
1105 dri2_dpy = dri2_egl_display(disp);
1106
1107 assert(dri2_dpy->ref_count > 0);
1108 dri2_dpy->ref_count--;
1109
1110 if (dri2_dpy->ref_count > 0)
1111 return;
1112
1113 _eglCleanupDisplay(disp);
1114 dri2_display_destroy(disp);
1115 }
1116
1117 void
1118 dri2_display_destroy(_EGLDisplay *disp)
1119 {
1120 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1121
1122 if (dri2_dpy->own_dri_screen) {
1123 if (dri2_dpy->vtbl && dri2_dpy->vtbl->close_screen_notify)
1124 dri2_dpy->vtbl->close_screen_notify(disp);
1125 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1126 }
1127 if (dri2_dpy->fd >= 0)
1128 close(dri2_dpy->fd);
1129 if (dri2_dpy->driver)
1130 dlclose(dri2_dpy->driver);
1131 free(dri2_dpy->driver_name);
1132
1133 #ifdef HAVE_WAYLAND_PLATFORM
1134 free(dri2_dpy->device_name);
1135 #endif
1136
1137 switch (disp->Platform) {
1138 case _EGL_PLATFORM_X11:
1139 dri2_teardown_x11(dri2_dpy);
1140 break;
1141 case _EGL_PLATFORM_DRM:
1142 dri2_teardown_drm(dri2_dpy);
1143 break;
1144 case _EGL_PLATFORM_WAYLAND:
1145 dri2_teardown_wayland(dri2_dpy);
1146 break;
1147 default:
1148 /* TODO: add teardown for other platforms */
1149 break;
1150 }
1151
1152 /* The drm platform does not create the screen/driver_configs but reuses
1153 * the ones from the gbm device. As such the gbm itself is responsible
1154 * for the cleanup.
1155 */
1156 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1157 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1158 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1159 free(dri2_dpy->driver_configs);
1160 }
1161 free(dri2_dpy);
1162 disp->DriverData = NULL;
1163 }
1164
1165 __DRIbuffer *
1166 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
1167 unsigned int att, unsigned int format)
1168 {
1169 struct dri2_egl_display *dri2_dpy =
1170 dri2_egl_display(dri2_surf->base.Resource.Display);
1171
1172 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
1173 return NULL;
1174
1175 if (!dri2_surf->local_buffers[att]) {
1176 dri2_surf->local_buffers[att] =
1177 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
1178 dri2_surf->base.Width, dri2_surf->base.Height);
1179 }
1180
1181 return dri2_surf->local_buffers[att];
1182 }
1183
1184 void
1185 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
1186 {
1187 struct dri2_egl_display *dri2_dpy =
1188 dri2_egl_display(dri2_surf->base.Resource.Display);
1189
1190 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1191 if (dri2_surf->local_buffers[i]) {
1192 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1193 dri2_surf->local_buffers[i]);
1194 dri2_surf->local_buffers[i] = NULL;
1195 }
1196 }
1197 }
1198
1199 /**
1200 * Called via eglTerminate(), drv->API.Terminate().
1201 *
1202 * This must be guaranteed to be called exactly once, even if eglTerminate is
1203 * called many times (without a eglInitialize in between).
1204 */
1205 static EGLBoolean
1206 dri2_terminate(_EGLDriver *drv, _EGLDisplay *disp)
1207 {
1208 /* Release all non-current Context/Surfaces. */
1209 _eglReleaseDisplayResources(drv, disp);
1210
1211 dri2_display_release(disp);
1212
1213 return EGL_TRUE;
1214 }
1215
1216 /**
1217 * Set the error code after a call to
1218 * dri2_egl_display::dri2::createContextAttribs.
1219 */
1220 static void
1221 dri2_create_context_attribs_error(int dri_error)
1222 {
1223 EGLint egl_error;
1224
1225 switch (dri_error) {
1226 case __DRI_CTX_ERROR_SUCCESS:
1227 return;
1228
1229 case __DRI_CTX_ERROR_NO_MEMORY:
1230 egl_error = EGL_BAD_ALLOC;
1231 break;
1232
1233 /* From the EGL_KHR_create_context spec, section "Errors":
1234 *
1235 * * If <config> does not support a client API context compatible
1236 * with the requested API major and minor version, [...] context flags,
1237 * and context reset notification behavior (for client API types where
1238 * these attributes are supported), then an EGL_BAD_MATCH error is
1239 * generated.
1240 *
1241 * * If an OpenGL ES context is requested and the values for
1242 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1243 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1244 * is not defined, than an EGL_BAD_MATCH error is generated.
1245 *
1246 * * If an OpenGL context is requested, the requested version is
1247 * greater than 3.2, and the value for attribute
1248 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1249 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1250 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1251 * one of these bits set; or if the implementation does not support
1252 * the requested profile, then an EGL_BAD_MATCH error is generated.
1253 */
1254 case __DRI_CTX_ERROR_BAD_API:
1255 case __DRI_CTX_ERROR_BAD_VERSION:
1256 case __DRI_CTX_ERROR_BAD_FLAG:
1257 egl_error = EGL_BAD_MATCH;
1258 break;
1259
1260 /* From the EGL_KHR_create_context spec, section "Errors":
1261 *
1262 * * If an attribute name or attribute value in <attrib_list> is not
1263 * recognized (including unrecognized bits in bitmask attributes),
1264 * then an EGL_BAD_ATTRIBUTE error is generated."
1265 */
1266 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1267 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1268 egl_error = EGL_BAD_ATTRIBUTE;
1269 break;
1270
1271 default:
1272 assert(!"unknown dri_error code");
1273 egl_error = EGL_BAD_MATCH;
1274 break;
1275 }
1276
1277 _eglError(egl_error, "dri2_create_context");
1278 }
1279
1280 static bool
1281 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1282 struct dri2_egl_display *dri2_dpy,
1283 uint32_t *ctx_attribs,
1284 unsigned *num_attribs)
1285 {
1286 int pos = 0;
1287
1288 assert(*num_attribs >= NUM_ATTRIBS);
1289
1290 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1291 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1292 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1293 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1294
1295 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1296 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1297 * extension, don't even try to send it the robust-access flag.
1298 * It may explode. Instead, generate the required EGL error here.
1299 */
1300 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1301 && !dri2_dpy->robustness) {
1302 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1303 return false;
1304 }
1305
1306 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1307 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1308 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1309 }
1310
1311 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1312 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1313 * extension, don't even try to send it a reset strategy. It may
1314 * explode. Instead, generate the required EGL error here.
1315 */
1316 if (!dri2_dpy->robustness) {
1317 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1318 return false;
1319 }
1320
1321 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1322 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1323 }
1324
1325 if (dri2_ctx->base.ContextPriority != EGL_CONTEXT_PRIORITY_MEDIUM_IMG) {
1326 unsigned val;
1327
1328 switch (dri2_ctx->base.ContextPriority) {
1329 case EGL_CONTEXT_PRIORITY_HIGH_IMG:
1330 val = __DRI_CTX_PRIORITY_HIGH;
1331 break;
1332 case EGL_CONTEXT_PRIORITY_MEDIUM_IMG:
1333 val = __DRI_CTX_PRIORITY_MEDIUM;
1334 break;
1335 case EGL_CONTEXT_PRIORITY_LOW_IMG:
1336 val = __DRI_CTX_PRIORITY_LOW;
1337 break;
1338 default:
1339 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1340 return false;
1341 }
1342
1343 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_PRIORITY;
1344 ctx_attribs[pos++] = val;
1345 }
1346
1347 if (dri2_ctx->base.ReleaseBehavior == EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR) {
1348 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR;
1349 ctx_attribs[pos++] = __DRI_CTX_RELEASE_BEHAVIOR_NONE;
1350 }
1351
1352 *num_attribs = pos;
1353
1354 return true;
1355 }
1356
1357 /**
1358 * Called via eglCreateContext(), drv->API.CreateContext().
1359 */
1360 static _EGLContext *
1361 dri2_create_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLConfig *conf,
1362 _EGLContext *share_list, const EGLint *attrib_list)
1363 {
1364 struct dri2_egl_context *dri2_ctx;
1365 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1366 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1367 __DRIcontext *shared =
1368 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1369 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1370 const __DRIconfig *dri_config;
1371 int api;
1372 unsigned error;
1373 unsigned num_attribs = NUM_ATTRIBS;
1374 uint32_t ctx_attribs[NUM_ATTRIBS];
1375
1376 (void) drv;
1377
1378 dri2_ctx = malloc(sizeof *dri2_ctx);
1379 if (!dri2_ctx) {
1380 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1381 return NULL;
1382 }
1383
1384 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1385 goto cleanup;
1386
1387 /* The EGL_EXT_create_context_robustness spec says:
1388 *
1389 * "Add to the eglCreateContext context creation errors: [...]
1390 *
1391 * * If the reset notification behavior of <share_context> and the
1392 * newly created context are different then an EGL_BAD_MATCH error is
1393 * generated."
1394 */
1395 if (share_list && share_list->ResetNotificationStrategy !=
1396 dri2_ctx->base.ResetNotificationStrategy) {
1397 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1398 goto cleanup;
1399 }
1400
1401 /* The EGL_KHR_create_context_no_error spec says:
1402 *
1403 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1404 * used to create <share_context> does not match the value of
1405 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1406 */
1407 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1408 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1409 goto cleanup;
1410 }
1411
1412 switch (dri2_ctx->base.ClientAPI) {
1413 case EGL_OPENGL_ES_API:
1414 switch (dri2_ctx->base.ClientMajorVersion) {
1415 case 1:
1416 api = __DRI_API_GLES;
1417 break;
1418 case 2:
1419 api = __DRI_API_GLES2;
1420 break;
1421 case 3:
1422 api = __DRI_API_GLES3;
1423 break;
1424 default:
1425 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1426 free(dri2_ctx);
1427 return NULL;
1428 }
1429 break;
1430 case EGL_OPENGL_API:
1431 if ((dri2_ctx->base.ClientMajorVersion >= 4
1432 || (dri2_ctx->base.ClientMajorVersion == 3
1433 && dri2_ctx->base.ClientMinorVersion >= 2))
1434 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1435 api = __DRI_API_OPENGL_CORE;
1436 else if (dri2_ctx->base.ClientMajorVersion == 3 &&
1437 dri2_ctx->base.ClientMinorVersion == 1)
1438 api = __DRI_API_OPENGL_CORE;
1439 else
1440 api = __DRI_API_OPENGL;
1441 break;
1442 default:
1443 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1444 free(dri2_ctx);
1445 return NULL;
1446 }
1447
1448 if (conf != NULL) {
1449 /* The config chosen here isn't necessarily
1450 * used for surfaces later.
1451 * A pixmap surface will use the single config.
1452 * This opportunity depends on disabling the
1453 * doubleBufferMode check in
1454 * src/mesa/main/context.c:check_compatible()
1455 */
1456 if (dri2_config->dri_config[1][0])
1457 dri_config = dri2_config->dri_config[1][0];
1458 else
1459 dri_config = dri2_config->dri_config[0][0];
1460 }
1461 else
1462 dri_config = NULL;
1463
1464 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1465 &num_attribs))
1466 goto cleanup;
1467
1468 if (dri2_dpy->image_driver) {
1469 dri2_ctx->dri_context =
1470 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1471 api,
1472 dri_config,
1473 shared,
1474 num_attribs / 2,
1475 ctx_attribs,
1476 & error,
1477 dri2_ctx);
1478 dri2_create_context_attribs_error(error);
1479 } else if (dri2_dpy->dri2) {
1480 if (dri2_dpy->dri2->base.version >= 3) {
1481 dri2_ctx->dri_context =
1482 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1483 api,
1484 dri_config,
1485 shared,
1486 num_attribs / 2,
1487 ctx_attribs,
1488 & error,
1489 dri2_ctx);
1490 dri2_create_context_attribs_error(error);
1491 } else {
1492 dri2_ctx->dri_context =
1493 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1494 api,
1495 dri_config,
1496 shared,
1497 dri2_ctx);
1498 }
1499 } else {
1500 assert(dri2_dpy->swrast);
1501 if (dri2_dpy->swrast->base.version >= 3) {
1502 dri2_ctx->dri_context =
1503 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1504 api,
1505 dri_config,
1506 shared,
1507 num_attribs / 2,
1508 ctx_attribs,
1509 & error,
1510 dri2_ctx);
1511 dri2_create_context_attribs_error(error);
1512 } else {
1513 dri2_ctx->dri_context =
1514 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1515 api,
1516 dri_config,
1517 shared,
1518 dri2_ctx);
1519 }
1520 }
1521
1522 if (!dri2_ctx->dri_context)
1523 goto cleanup;
1524
1525 return &dri2_ctx->base;
1526
1527 cleanup:
1528 free(dri2_ctx);
1529 return NULL;
1530 }
1531
1532 /**
1533 * Called via eglDestroyContext(), drv->API.DestroyContext().
1534 */
1535 static EGLBoolean
1536 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1537 {
1538 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1539 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1540
1541 if (_eglPutContext(ctx)) {
1542 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1543 free(dri2_ctx);
1544 }
1545
1546 return EGL_TRUE;
1547 }
1548
1549 EGLBoolean
1550 dri2_init_surface(_EGLSurface *surf, _EGLDisplay *disp, EGLint type,
1551 _EGLConfig *conf, const EGLint *attrib_list,
1552 EGLBoolean enable_out_fence, void *native_surface)
1553 {
1554 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1555 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1556
1557 dri2_surf->out_fence_fd = -1;
1558 dri2_surf->enable_out_fence = false;
1559 if (dri2_dpy->fence && dri2_dpy->fence->base.version >= 2 &&
1560 dri2_dpy->fence->get_capabilities &&
1561 (dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen) &
1562 __DRI_FENCE_CAP_NATIVE_FD)) {
1563 dri2_surf->enable_out_fence = enable_out_fence;
1564 }
1565
1566 return _eglInitSurface(surf, disp, type, conf, attrib_list, native_surface);
1567 }
1568
1569 static void
1570 dri2_surface_set_out_fence_fd( _EGLSurface *surf, int fence_fd)
1571 {
1572 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1573
1574 if (dri2_surf->out_fence_fd >= 0)
1575 close(dri2_surf->out_fence_fd);
1576
1577 dri2_surf->out_fence_fd = fence_fd;
1578 }
1579
1580 void
1581 dri2_fini_surface(_EGLSurface *surf)
1582 {
1583 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1584
1585 dri2_surface_set_out_fence_fd(surf, -1);
1586 dri2_surf->enable_out_fence = false;
1587 }
1588
1589 static EGLBoolean
1590 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1591 {
1592 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1593
1594 if (!_eglPutSurface(surf))
1595 return EGL_TRUE;
1596
1597 return dri2_dpy->vtbl->destroy_surface(drv, disp, surf);
1598 }
1599
1600 static void
1601 dri2_surf_update_fence_fd(_EGLContext *ctx,
1602 _EGLDisplay *disp, _EGLSurface *surf)
1603 {
1604 __DRIcontext *dri_ctx = dri2_egl_context(ctx)->dri_context;
1605 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1606 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1607 int fence_fd = -1;
1608 void *fence;
1609
1610 if (!dri2_surf->enable_out_fence)
1611 return;
1612
1613 fence = dri2_dpy->fence->create_fence_fd(dri_ctx, -1);
1614 if (fence) {
1615 fence_fd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
1616 fence);
1617 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, fence);
1618 }
1619 dri2_surface_set_out_fence_fd(surf, fence_fd);
1620 }
1621
1622 EGLBoolean
1623 dri2_create_drawable(struct dri2_egl_display *dri2_dpy,
1624 const __DRIconfig *config,
1625 struct dri2_egl_surface *dri2_surf,
1626 void *loaderPrivate)
1627 {
1628 __DRIcreateNewDrawableFunc createNewDrawable;
1629
1630 if (dri2_dpy->image_driver)
1631 createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
1632 else if (dri2_dpy->dri2)
1633 createNewDrawable = dri2_dpy->dri2->createNewDrawable;
1634 else if (dri2_dpy->swrast)
1635 createNewDrawable = dri2_dpy->swrast->createNewDrawable;
1636 else
1637 return _eglError(EGL_BAD_ALLOC, "no createNewDrawable");
1638
1639 dri2_surf->dri_drawable = createNewDrawable(dri2_dpy->dri_screen,
1640 config, loaderPrivate);
1641 if (dri2_surf->dri_drawable == NULL)
1642 return _eglError(EGL_BAD_ALLOC, "createNewDrawable");
1643
1644 return EGL_TRUE;
1645 }
1646
1647 /**
1648 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1649 */
1650 static EGLBoolean
1651 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1652 _EGLSurface *rsurf, _EGLContext *ctx)
1653 {
1654 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1655 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1656 _EGLDisplay *old_disp = NULL;
1657 struct dri2_egl_display *old_dri2_dpy = NULL;
1658 _EGLContext *old_ctx;
1659 _EGLSurface *old_dsurf, *old_rsurf;
1660 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1661 __DRIdrawable *ddraw, *rdraw;
1662 __DRIcontext *cctx;
1663 EGLBoolean unbind;
1664
1665 if (!dri2_dpy)
1666 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1667
1668 /* make new bindings */
1669 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1670 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1671 return EGL_FALSE;
1672 }
1673
1674 if (old_ctx) {
1675 old_disp = old_ctx->Resource.Display;
1676 old_dri2_dpy = dri2_egl_display(old_disp);
1677 }
1678
1679 /* flush before context switch */
1680 if (old_ctx)
1681 dri2_gl_flush();
1682
1683 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1684 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1685 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1686
1687 if (old_ctx) {
1688 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1689
1690 if (old_dsurf)
1691 dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
1692
1693 /* Disable shared buffer mode */
1694 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1695 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1696 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, false);
1697 }
1698
1699 dri2_dpy->core->unbindContext(old_cctx);
1700 }
1701
1702 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1703
1704 if (!unbind && !dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1705 /* undo the previous _eglBindContext */
1706 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1707 assert(&dri2_ctx->base == ctx &&
1708 tmp_dsurf == dsurf &&
1709 tmp_rsurf == rsurf);
1710
1711 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1712 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1713 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
1714 }
1715
1716 _eglPutSurface(dsurf);
1717 _eglPutSurface(rsurf);
1718 _eglPutContext(ctx);
1719
1720 _eglPutSurface(old_dsurf);
1721 _eglPutSurface(old_rsurf);
1722 _eglPutContext(old_ctx);
1723
1724 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1725 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1726 * as EGL_SUCCESS.
1727 */
1728 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1729 }
1730
1731 dri2_destroy_surface(drv, disp, old_dsurf);
1732 dri2_destroy_surface(drv, disp, old_rsurf);
1733
1734 if (!unbind)
1735 dri2_dpy->ref_count++;
1736
1737 if (old_ctx) {
1738 dri2_destroy_context(drv, disp, old_ctx);
1739 dri2_display_release(old_disp);
1740 }
1741
1742 if (dsurf && _eglSurfaceHasMutableRenderBuffer(dsurf) &&
1743 dri2_dpy->vtbl->set_shared_buffer_mode) {
1744 /* Always update the shared buffer mode. This is obviously needed when
1745 * the active EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. When
1746 * EGL_RENDER_BUFFER is EGL_BACK_BUFFER, the update protects us in the
1747 * case where external non-EGL API may have changed window's shared
1748 * buffer mode since we last saw it.
1749 */
1750 bool mode = (dsurf->ActiveRenderBuffer == EGL_SINGLE_BUFFER);
1751 dri2_dpy->vtbl->set_shared_buffer_mode(disp, dsurf, mode);
1752 }
1753
1754 return EGL_TRUE;
1755 }
1756
1757 __DRIdrawable *
1758 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1759 {
1760 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1761
1762 return dri2_surf->dri_drawable;
1763 }
1764
1765 /*
1766 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1767 */
1768 static _EGLProc
1769 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1770 {
1771 return _glapi_get_proc_address(procname);
1772 }
1773
1774 static _EGLSurface*
1775 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
1776 _EGLConfig *conf, void *native_window,
1777 const EGLint *attrib_list)
1778 {
1779 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1780 return dri2_dpy->vtbl->create_window_surface(drv, disp, conf, native_window,
1781 attrib_list);
1782 }
1783
1784 static _EGLSurface*
1785 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
1786 _EGLConfig *conf, void *native_pixmap,
1787 const EGLint *attrib_list)
1788 {
1789 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1790 return dri2_dpy->vtbl->create_pixmap_surface(drv, disp, conf, native_pixmap,
1791 attrib_list);
1792 }
1793
1794 static _EGLSurface*
1795 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
1796 _EGLConfig *conf, const EGLint *attrib_list)
1797 {
1798 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1799 return dri2_dpy->vtbl->create_pbuffer_surface(drv, disp, conf, attrib_list);
1800 }
1801
1802 static EGLBoolean
1803 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1804 EGLint interval)
1805 {
1806 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1807 if (!dri2_dpy->vtbl->swap_interval)
1808 return EGL_TRUE;
1809 return dri2_dpy->vtbl->swap_interval(drv, disp, surf, interval);
1810 }
1811
1812 /**
1813 * Asks the client API to flush any rendering to the drawable so that we can
1814 * do our swapbuffers.
1815 */
1816 void
1817 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1818 {
1819 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1820 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1821
1822 if (dri2_dpy->flush) {
1823 if (dri2_dpy->flush->base.version >= 4) {
1824 /* We know there's a current context because:
1825 *
1826 * "If surface is not bound to the calling thread’s current
1827 * context, an EGL_BAD_SURFACE error is generated."
1828 */
1829 _EGLContext *ctx = _eglGetCurrentContext();
1830 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1831
1832 /* From the EGL 1.4 spec (page 52):
1833 *
1834 * "The contents of ancillary buffers are always undefined
1835 * after calling eglSwapBuffers."
1836 */
1837 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1838 dri_drawable,
1839 __DRI2_FLUSH_DRAWABLE |
1840 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1841 __DRI2_THROTTLE_SWAPBUFFER);
1842 } else {
1843 dri2_dpy->flush->flush(dri_drawable);
1844 }
1845 }
1846 }
1847
1848 static EGLBoolean
1849 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1850 {
1851 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1852 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1853 _EGLContext *ctx = _eglGetCurrentContext();
1854 EGLBoolean ret;
1855
1856 if (ctx && surf)
1857 dri2_surf_update_fence_fd(ctx, disp, surf);
1858 ret = dri2_dpy->vtbl->swap_buffers(drv, disp, surf);
1859
1860 /* SwapBuffers marks the end of the frame; reset the damage region for
1861 * use again next time.
1862 */
1863 if (ret && dri2_dpy->buffer_damage &&
1864 dri2_dpy->buffer_damage->set_damage_region)
1865 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
1866
1867 return ret;
1868 }
1869
1870 static EGLBoolean
1871 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *disp,
1872 _EGLSurface *surf,
1873 const EGLint *rects, EGLint n_rects)
1874 {
1875 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1876 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1877 _EGLContext *ctx = _eglGetCurrentContext();
1878 EGLBoolean ret;
1879
1880 if (ctx && surf)
1881 dri2_surf_update_fence_fd(ctx, disp, surf);
1882 ret = dri2_dpy->vtbl->swap_buffers_with_damage(drv, disp, surf,
1883 rects, n_rects);
1884
1885 /* SwapBuffers marks the end of the frame; reset the damage region for
1886 * use again next time.
1887 */
1888 if (ret && dri2_dpy->buffer_damage &&
1889 dri2_dpy->buffer_damage->set_damage_region)
1890 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
1891
1892 return ret;
1893 }
1894
1895 static EGLBoolean
1896 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1897 EGLint numRects, const EGLint *rects)
1898 {
1899 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1900 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1901 EGLBoolean ret;
1902
1903 ret = dri2_dpy->vtbl->swap_buffers_region(drv, disp, surf, numRects, rects);
1904
1905 /* SwapBuffers marks the end of the frame; reset the damage region for
1906 * use again next time.
1907 */
1908 if (ret && dri2_dpy->buffer_damage &&
1909 dri2_dpy->buffer_damage->set_damage_region)
1910 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
1911
1912 return ret;
1913 }
1914
1915 static EGLBoolean
1916 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1917 EGLint *rects, EGLint n_rects)
1918 {
1919 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1920 __DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1921
1922 if (!dri2_dpy->buffer_damage || !dri2_dpy->buffer_damage->set_damage_region)
1923 return EGL_FALSE;
1924
1925 dri2_dpy->buffer_damage->set_damage_region(drawable, n_rects, rects);
1926 return EGL_TRUE;
1927 }
1928
1929 static EGLBoolean
1930 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1931 EGLint x, EGLint y, EGLint width, EGLint height)
1932 {
1933 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1934 return dri2_dpy->vtbl->post_sub_buffer(drv, disp, surf, x, y, width, height);
1935 }
1936
1937 static EGLBoolean
1938 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1939 void *native_pixmap_target)
1940 {
1941 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1942 return dri2_dpy->vtbl->copy_buffers(drv, disp, surf, native_pixmap_target);
1943 }
1944
1945 static EGLint
1946 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1947 {
1948 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1949 return dri2_dpy->vtbl->query_buffer_age(drv, disp, surf);
1950 }
1951
1952 static EGLBoolean
1953 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1954 {
1955 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1956 _EGLSurface *surf = ctx->DrawSurface;
1957 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1958
1959 (void) drv;
1960
1961 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
1962 * we need to copy fake to real here.*/
1963
1964 if (dri2_dpy->flush != NULL)
1965 dri2_dpy->flush->flush(dri_drawable);
1966
1967 return EGL_TRUE;
1968 }
1969
1970 static EGLBoolean
1971 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
1972 {
1973 (void) drv;
1974 (void) disp;
1975
1976 if (engine != EGL_CORE_NATIVE_ENGINE)
1977 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
1978 /* glXWaitX(); */
1979
1980 return EGL_TRUE;
1981 }
1982
1983 static EGLBoolean
1984 dri2_bind_tex_image(_EGLDriver *drv,
1985 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
1986 {
1987 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1988 struct dri2_egl_context *dri2_ctx;
1989 _EGLContext *ctx;
1990 GLint format, target;
1991 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1992
1993 ctx = _eglGetCurrentContext();
1994 dri2_ctx = dri2_egl_context(ctx);
1995
1996 if (!_eglBindTexImage(drv, disp, surf, buffer))
1997 return EGL_FALSE;
1998
1999 switch (surf->TextureFormat) {
2000 case EGL_TEXTURE_RGB:
2001 format = __DRI_TEXTURE_FORMAT_RGB;
2002 break;
2003 case EGL_TEXTURE_RGBA:
2004 format = __DRI_TEXTURE_FORMAT_RGBA;
2005 break;
2006 default:
2007 assert(!"Unexpected texture format in dri2_bind_tex_image()");
2008 format = __DRI_TEXTURE_FORMAT_RGBA;
2009 }
2010
2011 switch (surf->TextureTarget) {
2012 case EGL_TEXTURE_2D:
2013 target = GL_TEXTURE_2D;
2014 break;
2015 default:
2016 target = GL_TEXTURE_2D;
2017 assert(!"Unexpected texture target in dri2_bind_tex_image()");
2018 }
2019
2020 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
2021 target, format,
2022 dri_drawable);
2023
2024 return EGL_TRUE;
2025 }
2026
2027 static EGLBoolean
2028 dri2_release_tex_image(_EGLDriver *drv,
2029 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2030 {
2031 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2032 struct dri2_egl_context *dri2_ctx;
2033 _EGLContext *ctx;
2034 GLint target;
2035 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2036
2037 ctx = _eglGetCurrentContext();
2038 dri2_ctx = dri2_egl_context(ctx);
2039
2040 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
2041 return EGL_FALSE;
2042
2043 switch (surf->TextureTarget) {
2044 case EGL_TEXTURE_2D:
2045 target = GL_TEXTURE_2D;
2046 break;
2047 default:
2048 assert(!"missing texture target");
2049 }
2050
2051 if (dri2_dpy->tex_buffer->base.version >= 3 &&
2052 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
2053 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
2054 target, dri_drawable);
2055 }
2056
2057 return EGL_TRUE;
2058 }
2059
2060 static _EGLImage*
2061 dri2_create_image(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx,
2062 EGLenum target, EGLClientBuffer buffer,
2063 const EGLint *attr_list)
2064 {
2065 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2066 return dri2_dpy->vtbl->create_image(drv, disp, ctx, target, buffer,
2067 attr_list);
2068 }
2069
2070 static _EGLImage *
2071 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
2072 {
2073 struct dri2_egl_image *dri2_img;
2074
2075 if (dri_image == NULL) {
2076 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2077 return NULL;
2078 }
2079
2080 dri2_img = malloc(sizeof *dri2_img);
2081 if (!dri2_img) {
2082 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2083 return NULL;
2084 }
2085
2086 _eglInitImage(&dri2_img->base, disp);
2087
2088 dri2_img->dri_image = dri_image;
2089
2090 return &dri2_img->base;
2091 }
2092
2093 /**
2094 * Translate a DRI Image extension error code into an EGL error code.
2095 */
2096 static EGLint
2097 egl_error_from_dri_image_error(int dri_error)
2098 {
2099 switch (dri_error) {
2100 case __DRI_IMAGE_ERROR_SUCCESS:
2101 return EGL_SUCCESS;
2102 case __DRI_IMAGE_ERROR_BAD_ALLOC:
2103 return EGL_BAD_ALLOC;
2104 case __DRI_IMAGE_ERROR_BAD_MATCH:
2105 return EGL_BAD_MATCH;
2106 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
2107 return EGL_BAD_PARAMETER;
2108 case __DRI_IMAGE_ERROR_BAD_ACCESS:
2109 return EGL_BAD_ACCESS;
2110 default:
2111 assert(!"unknown dri_error code");
2112 return EGL_BAD_ALLOC;
2113 }
2114 }
2115
2116 static _EGLImage *
2117 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
2118 EGLClientBuffer buffer,
2119 const EGLint *attr_list)
2120 {
2121 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2122 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2123 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
2124 __DRIimage *dri_image;
2125
2126 if (renderbuffer == 0) {
2127 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2128 return EGL_NO_IMAGE_KHR;
2129 }
2130
2131 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
2132 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2133 return EGL_NO_IMAGE_KHR;
2134 }
2135
2136 if (dri2_dpy->image->base.version >= 17 &&
2137 dri2_dpy->image->createImageFromRenderbuffer2) {
2138 unsigned error = ~0;
2139
2140 dri_image = dri2_dpy->image->createImageFromRenderbuffer2(
2141 dri2_ctx->dri_context, renderbuffer, NULL, &error);
2142
2143 assert(!!dri_image == (error == __DRI_IMAGE_ERROR_SUCCESS));
2144
2145 if (!dri_image) {
2146 _eglError(egl_error_from_dri_image_error(error), "dri2_create_image_khr");
2147 return EGL_NO_IMAGE_KHR;
2148 }
2149 } else {
2150 dri_image = dri2_dpy->image->createImageFromRenderbuffer(
2151 dri2_ctx->dri_context, renderbuffer, NULL);
2152 if (!dri_image) {
2153 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2154 return EGL_NO_IMAGE_KHR;
2155 }
2156 }
2157
2158 return dri2_create_image_from_dri(disp, dri_image);
2159 }
2160
2161 #ifdef HAVE_WAYLAND_PLATFORM
2162
2163 /* This structure describes how a wl_buffer maps to one or more
2164 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
2165 * offsets and strides of the planes in the buffer. This table maps a
2166 * wl_drm format code to a description of the planes in the buffer
2167 * that lets us create a __DRIimage for each of the planes. */
2168
2169 static const struct wl_drm_components_descriptor {
2170 uint32_t dri_components;
2171 EGLint components;
2172 int nplanes;
2173 } wl_drm_components[] = {
2174 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
2175 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
2176 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
2177 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
2178 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
2179 };
2180
2181 static _EGLImage *
2182 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2183 EGLClientBuffer _buffer,
2184 const EGLint *attr_list)
2185 {
2186 struct wl_drm_buffer *buffer;
2187 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2188 const struct wl_drm_components_descriptor *f;
2189 __DRIimage *dri_image;
2190 _EGLImageAttribs attrs;
2191 int32_t plane;
2192
2193 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
2194 (struct wl_resource *) _buffer);
2195 if (!buffer)
2196 return NULL;
2197
2198 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2199 return NULL;
2200
2201 plane = attrs.PlaneWL;
2202 f = buffer->driver_format;
2203 if (plane < 0 || plane >= f->nplanes) {
2204 _eglError(EGL_BAD_PARAMETER,
2205 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
2206 return NULL;
2207 }
2208
2209 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
2210 if (dri_image == NULL && plane == 0)
2211 dri_image = dri2_dpy->image->dupImage(buffer->driver_buffer, NULL);
2212 if (dri_image == NULL) {
2213 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
2214 return NULL;
2215 }
2216
2217 return dri2_create_image_from_dri(disp, dri_image);
2218 }
2219 #endif
2220
2221 static EGLBoolean
2222 dri2_get_sync_values_chromium(_EGLDisplay *disp, _EGLSurface *surf,
2223 EGLuint64KHR *ust, EGLuint64KHR *msc,
2224 EGLuint64KHR *sbc)
2225 {
2226 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2227 return dri2_dpy->vtbl->get_sync_values(disp, surf, ust, msc, sbc);
2228 }
2229
2230 /**
2231 * Set the error code after a call to
2232 * dri2_egl_image::dri_image::createImageFromTexture.
2233 */
2234 static void
2235 dri2_create_image_khr_texture_error(int dri_error)
2236 {
2237 EGLint egl_error = egl_error_from_dri_image_error(dri_error);
2238
2239 if (egl_error != EGL_SUCCESS)
2240 _eglError(egl_error, "dri2_create_image_khr_texture");
2241 }
2242
2243 static _EGLImage *
2244 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
2245 EGLenum target,
2246 EGLClientBuffer buffer,
2247 const EGLint *attr_list)
2248 {
2249 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2250 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2251 struct dri2_egl_image *dri2_img;
2252 GLuint texture = (GLuint) (uintptr_t) buffer;
2253 _EGLImageAttribs attrs;
2254 GLuint depth;
2255 GLenum gl_target;
2256 unsigned error;
2257
2258 if (texture == 0) {
2259 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2260 return EGL_NO_IMAGE_KHR;
2261 }
2262
2263 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2264 return EGL_NO_IMAGE_KHR;
2265
2266 switch (target) {
2267 case EGL_GL_TEXTURE_2D_KHR:
2268 if (!disp->Extensions.KHR_gl_texture_2D_image) {
2269 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2270 return EGL_NO_IMAGE_KHR;
2271 }
2272 depth = 0;
2273 gl_target = GL_TEXTURE_2D;
2274 break;
2275 case EGL_GL_TEXTURE_3D_KHR:
2276 if (!disp->Extensions.KHR_gl_texture_3D_image) {
2277 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2278 return EGL_NO_IMAGE_KHR;
2279 }
2280
2281 depth = attrs.GLTextureZOffset;
2282 gl_target = GL_TEXTURE_3D;
2283 break;
2284 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2285 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2286 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2287 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2288 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2289 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2290 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
2291 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2292 return EGL_NO_IMAGE_KHR;
2293 }
2294
2295 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
2296 gl_target = GL_TEXTURE_CUBE_MAP;
2297 break;
2298 default:
2299 unreachable("Unexpected target in dri2_create_image_khr_texture()");
2300 return EGL_NO_IMAGE_KHR;
2301 }
2302
2303 dri2_img = malloc(sizeof *dri2_img);
2304 if (!dri2_img) {
2305 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2306 return EGL_NO_IMAGE_KHR;
2307 }
2308
2309 _eglInitImage(&dri2_img->base, disp);
2310
2311 dri2_img->dri_image =
2312 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
2313 gl_target,
2314 texture,
2315 depth,
2316 attrs.GLTextureLevel,
2317 &error,
2318 dri2_img);
2319 dri2_create_image_khr_texture_error(error);
2320
2321 if (!dri2_img->dri_image) {
2322 free(dri2_img);
2323 return EGL_NO_IMAGE_KHR;
2324 }
2325 return &dri2_img->base;
2326 }
2327
2328 static EGLBoolean
2329 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2330 EGLint attribute, EGLint *value)
2331 {
2332 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2333 if (!dri2_dpy->vtbl->query_surface)
2334 return _eglQuerySurface(drv, disp, surf, attribute, value);
2335 return dri2_dpy->vtbl->query_surface(drv, disp, surf, attribute, value);
2336 }
2337
2338 static struct wl_buffer*
2339 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *disp,
2340 _EGLImage *img)
2341 {
2342 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2343 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, disp, img);
2344 }
2345
2346 #ifdef HAVE_LIBDRM
2347 static _EGLImage *
2348 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2349 EGLClientBuffer buffer, const EGLint *attr_list)
2350 {
2351 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2352 EGLint format, name, pitch;
2353 _EGLImageAttribs attrs;
2354 __DRIimage *dri_image;
2355
2356 name = (EGLint) (uintptr_t) buffer;
2357
2358 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2359 return NULL;
2360
2361 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2362 attrs.DRMBufferStrideMESA <= 0) {
2363 _eglError(EGL_BAD_PARAMETER,
2364 "bad width, height or stride");
2365 return NULL;
2366 }
2367
2368 switch (attrs.DRMBufferFormatMESA) {
2369 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2370 format = __DRI_IMAGE_FORMAT_ARGB8888;
2371 pitch = attrs.DRMBufferStrideMESA;
2372 break;
2373 default:
2374 _eglError(EGL_BAD_PARAMETER,
2375 "dri2_create_image_khr: unsupported pixmap depth");
2376 return NULL;
2377 }
2378
2379 dri_image =
2380 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2381 attrs.Width,
2382 attrs.Height,
2383 format,
2384 name,
2385 pitch,
2386 NULL);
2387
2388 return dri2_create_image_from_dri(disp, dri_image);
2389 }
2390
2391 static EGLBoolean
2392 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2393 {
2394 /**
2395 * The spec says:
2396 *
2397 * "Required attributes and their values are as follows:
2398 *
2399 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2400 *
2401 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2402 * by drm_fourcc.h and used as the pixel_format parameter of the
2403 * drm_mode_fb_cmd2 ioctl."
2404 *
2405 * and
2406 *
2407 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2408 * incomplete, EGL_BAD_PARAMETER is generated."
2409 */
2410 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2411 !attrs->DMABufFourCC.IsPresent)
2412 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2413
2414 /**
2415 * Also:
2416 *
2417 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2418 * specified for a plane's pitch or offset isn't supported by EGL,
2419 * EGL_BAD_ACCESS is generated."
2420 */
2421 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2422 if (attrs->DMABufPlanePitches[i].IsPresent &&
2423 attrs->DMABufPlanePitches[i].Value <= 0)
2424 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2425 }
2426
2427 /**
2428 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2429 * attribute values may be given.
2430 *
2431 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2432 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2433 */
2434 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2435 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2436 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2437 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2438 }
2439
2440 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2441 * mandate it, we only accept the same modifier across all planes. */
2442 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2443 if (attrs->DMABufPlaneFds[i].IsPresent) {
2444 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2445 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2446 (attrs->DMABufPlaneModifiersLo[0].Value !=
2447 attrs->DMABufPlaneModifiersLo[i].Value) ||
2448 (attrs->DMABufPlaneModifiersHi[0].Value !=
2449 attrs->DMABufPlaneModifiersHi[i].Value))
2450 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2451 }
2452 }
2453
2454 return EGL_TRUE;
2455 }
2456
2457 /* Returns the total number of planes for the format or zero if it isn't a
2458 * valid fourcc format.
2459 */
2460 static unsigned
2461 dri2_num_fourcc_format_planes(EGLint format)
2462 {
2463 switch (format) {
2464 case DRM_FORMAT_R8:
2465 case DRM_FORMAT_RG88:
2466 case DRM_FORMAT_GR88:
2467 case DRM_FORMAT_R16:
2468 case DRM_FORMAT_GR1616:
2469 case DRM_FORMAT_RGB332:
2470 case DRM_FORMAT_BGR233:
2471 case DRM_FORMAT_XRGB4444:
2472 case DRM_FORMAT_XBGR4444:
2473 case DRM_FORMAT_RGBX4444:
2474 case DRM_FORMAT_BGRX4444:
2475 case DRM_FORMAT_ARGB4444:
2476 case DRM_FORMAT_ABGR4444:
2477 case DRM_FORMAT_RGBA4444:
2478 case DRM_FORMAT_BGRA4444:
2479 case DRM_FORMAT_XRGB1555:
2480 case DRM_FORMAT_XBGR1555:
2481 case DRM_FORMAT_RGBX5551:
2482 case DRM_FORMAT_BGRX5551:
2483 case DRM_FORMAT_ARGB1555:
2484 case DRM_FORMAT_ABGR1555:
2485 case DRM_FORMAT_RGBA5551:
2486 case DRM_FORMAT_BGRA5551:
2487 case DRM_FORMAT_RGB565:
2488 case DRM_FORMAT_BGR565:
2489 case DRM_FORMAT_RGB888:
2490 case DRM_FORMAT_BGR888:
2491 case DRM_FORMAT_XRGB8888:
2492 case DRM_FORMAT_XBGR8888:
2493 case DRM_FORMAT_RGBX8888:
2494 case DRM_FORMAT_BGRX8888:
2495 case DRM_FORMAT_ARGB8888:
2496 case DRM_FORMAT_ABGR8888:
2497 case DRM_FORMAT_RGBA8888:
2498 case DRM_FORMAT_BGRA8888:
2499 case DRM_FORMAT_XRGB2101010:
2500 case DRM_FORMAT_XBGR2101010:
2501 case DRM_FORMAT_RGBX1010102:
2502 case DRM_FORMAT_BGRX1010102:
2503 case DRM_FORMAT_ARGB2101010:
2504 case DRM_FORMAT_ABGR2101010:
2505 case DRM_FORMAT_RGBA1010102:
2506 case DRM_FORMAT_BGRA1010102:
2507 case DRM_FORMAT_XBGR16161616F:
2508 case DRM_FORMAT_ABGR16161616F:
2509 case DRM_FORMAT_YUYV:
2510 case DRM_FORMAT_YVYU:
2511 case DRM_FORMAT_UYVY:
2512 case DRM_FORMAT_VYUY:
2513 case DRM_FORMAT_AYUV:
2514 case DRM_FORMAT_XYUV8888:
2515 return 1;
2516
2517 case DRM_FORMAT_NV12:
2518 case DRM_FORMAT_NV21:
2519 case DRM_FORMAT_NV16:
2520 case DRM_FORMAT_NV61:
2521 case DRM_FORMAT_P010:
2522 case DRM_FORMAT_P012:
2523 case DRM_FORMAT_P016:
2524 return 2;
2525
2526 case DRM_FORMAT_YUV410:
2527 case DRM_FORMAT_YVU410:
2528 case DRM_FORMAT_YUV411:
2529 case DRM_FORMAT_YVU411:
2530 case DRM_FORMAT_YUV420:
2531 case DRM_FORMAT_YVU420:
2532 case DRM_FORMAT_YUV422:
2533 case DRM_FORMAT_YVU422:
2534 case DRM_FORMAT_YUV444:
2535 case DRM_FORMAT_YVU444:
2536 return 3;
2537
2538 default:
2539 return 0;
2540 }
2541 }
2542
2543 /* Returns the total number of file descriptors. Zero indicates an error. */
2544 static unsigned
2545 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2546 {
2547 unsigned plane_n = dri2_num_fourcc_format_planes(attrs->DMABufFourCC.Value);
2548 if (plane_n == 0) {
2549 _eglError(EGL_BAD_MATCH, "unknown drm fourcc format");
2550 return 0;
2551 }
2552
2553 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2554 /**
2555 * The modifiers extension spec says:
2556 *
2557 * "Modifiers may modify any attribute of a buffer import, including
2558 * but not limited to adding extra planes to a format which
2559 * otherwise does not have those planes. As an example, a modifier
2560 * may add a plane for an external compression buffer to a
2561 * single-plane format. The exact meaning and effect of any
2562 * modifier is canonically defined by drm_fourcc.h, not as part of
2563 * this extension."
2564 */
2565 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2566 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2567 plane_n = i + 1;
2568 }
2569 }
2570
2571 /**
2572 * The spec says:
2573 *
2574 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2575 * incomplete, EGL_BAD_PARAMETER is generated."
2576 */
2577 for (unsigned i = 0; i < plane_n; ++i) {
2578 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2579 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2580 !attrs->DMABufPlanePitches[i].IsPresent) {
2581 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2582 return 0;
2583 }
2584 }
2585
2586 /**
2587 * The spec also says:
2588 *
2589 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2590 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2591 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2592 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2593 */
2594 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2595 if (attrs->DMABufPlaneFds[i].IsPresent ||
2596 attrs->DMABufPlaneOffsets[i].IsPresent ||
2597 attrs->DMABufPlanePitches[i].IsPresent) {
2598 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2599 return 0;
2600 }
2601 }
2602
2603 return plane_n;
2604 }
2605
2606 static EGLBoolean
2607 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2608 EGLint max, EGLint *formats, EGLint *count)
2609 {
2610 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2611 if (max < 0 || (max > 0 && formats == NULL))
2612 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2613
2614 if (dri2_dpy->image->base.version < 15 ||
2615 dri2_dpy->image->queryDmaBufFormats == NULL)
2616 return EGL_FALSE;
2617
2618 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2619 formats, count))
2620 return EGL_FALSE;
2621
2622 if (max > 0) {
2623 /* Assert that all of the formats returned are actually fourcc formats.
2624 * Some day, if we want the internal interface function to be able to
2625 * return the fake fourcc formats defined in dri_interface.h, we'll have
2626 * to do something more clever here to pair the list down to just real
2627 * fourcc formats so that we don't leak the fake internal ones.
2628 */
2629 for (int i = 0; i < *count; i++) {
2630 assert(dri2_num_fourcc_format_planes(formats[i]) > 0);
2631 }
2632 }
2633
2634 return EGL_TRUE;
2635 }
2636
2637 static EGLBoolean
2638 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2639 EGLint max, EGLuint64KHR *modifiers,
2640 EGLBoolean *external_only, EGLint *count)
2641 {
2642 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2643
2644 if (dri2_num_fourcc_format_planes(format) == 0)
2645 return _eglError(EGL_BAD_PARAMETER, "invalid fourcc format");
2646
2647 if (max < 0)
2648 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2649
2650 if (max > 0 && modifiers == NULL)
2651 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2652
2653 if (dri2_dpy->image->base.version < 15 ||
2654 dri2_dpy->image->queryDmaBufModifiers == NULL)
2655 return EGL_FALSE;
2656
2657 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2658 max, modifiers,
2659 (unsigned int *) external_only,
2660 count) == false)
2661 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2662
2663 return EGL_TRUE;
2664 }
2665
2666 /**
2667 * The spec says:
2668 *
2669 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2670 * EGL will take a reference to the dma_buf(s) which it will release at any
2671 * time while the EGLDisplay is initialized. It is the responsibility of the
2672 * application to close the dma_buf file descriptors."
2673 *
2674 * Therefore we must never close or otherwise modify the file descriptors.
2675 */
2676 _EGLImage *
2677 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2678 EGLClientBuffer buffer, const EGLint *attr_list)
2679 {
2680 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2681 _EGLImage *res;
2682 _EGLImageAttribs attrs;
2683 __DRIimage *dri_image;
2684 unsigned num_fds;
2685 int fds[DMA_BUF_MAX_PLANES];
2686 int pitches[DMA_BUF_MAX_PLANES];
2687 int offsets[DMA_BUF_MAX_PLANES];
2688 uint64_t modifier;
2689 bool has_modifier = false;
2690 unsigned error;
2691
2692 /**
2693 * The spec says:
2694 *
2695 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2696 * error EGL_BAD_PARAMETER is generated."
2697 */
2698 if (buffer != NULL) {
2699 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2700 return NULL;
2701 }
2702
2703 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2704 return NULL;
2705
2706 if (!dri2_check_dma_buf_attribs(&attrs))
2707 return NULL;
2708
2709 num_fds = dri2_check_dma_buf_format(&attrs);
2710 if (!num_fds)
2711 return NULL;
2712
2713 for (unsigned i = 0; i < num_fds; ++i) {
2714 fds[i] = attrs.DMABufPlaneFds[i].Value;
2715 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2716 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2717 }
2718
2719 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2720 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2721 * attrs.DMABufPlaneModifiersHi[0] */
2722 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2723 modifier = combine_u32_into_u64(attrs.DMABufPlaneModifiersHi[0].Value,
2724 attrs.DMABufPlaneModifiersLo[0].Value);
2725 has_modifier = true;
2726 }
2727
2728 if (has_modifier) {
2729 if (dri2_dpy->image->base.version < 15 ||
2730 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2731 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2732 return EGL_NO_IMAGE_KHR;
2733 }
2734 dri_image =
2735 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2736 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2737 modifier, fds, num_fds, pitches, offsets,
2738 attrs.DMABufYuvColorSpaceHint.Value,
2739 attrs.DMABufSampleRangeHint.Value,
2740 attrs.DMABufChromaHorizontalSiting.Value,
2741 attrs.DMABufChromaVerticalSiting.Value,
2742 &error,
2743 NULL);
2744 }
2745 else {
2746 dri_image =
2747 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2748 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2749 fds, num_fds, pitches, offsets,
2750 attrs.DMABufYuvColorSpaceHint.Value,
2751 attrs.DMABufSampleRangeHint.Value,
2752 attrs.DMABufChromaHorizontalSiting.Value,
2753 attrs.DMABufChromaVerticalSiting.Value,
2754 &error,
2755 NULL);
2756 }
2757 dri2_create_image_khr_texture_error(error);
2758
2759 if (!dri_image)
2760 return EGL_NO_IMAGE_KHR;
2761
2762 res = dri2_create_image_from_dri(disp, dri_image);
2763
2764 return res;
2765 }
2766 static _EGLImage *
2767 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2768 const EGLint *attr_list)
2769 {
2770 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2771 struct dri2_egl_image *dri2_img;
2772 _EGLImageAttribs attrs;
2773 unsigned int dri_use, valid_mask;
2774 int format;
2775
2776 (void) drv;
2777
2778 if (!attr_list) {
2779 _eglError(EGL_BAD_PARAMETER, __func__);
2780 return EGL_NO_IMAGE_KHR;
2781 }
2782
2783 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2784 return EGL_NO_IMAGE_KHR;
2785
2786 if (attrs.Width <= 0 || attrs.Height <= 0) {
2787 _eglError(EGL_BAD_PARAMETER, __func__);
2788 return EGL_NO_IMAGE_KHR;
2789 }
2790
2791 switch (attrs.DRMBufferFormatMESA) {
2792 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2793 format = __DRI_IMAGE_FORMAT_ARGB8888;
2794 break;
2795 default:
2796 _eglError(EGL_BAD_PARAMETER, __func__);
2797 return EGL_NO_IMAGE_KHR;
2798 }
2799
2800 valid_mask =
2801 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2802 EGL_DRM_BUFFER_USE_SHARE_MESA |
2803 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2804 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2805 _eglError(EGL_BAD_PARAMETER, __func__);
2806 return EGL_NO_IMAGE_KHR;
2807 }
2808
2809 dri_use = 0;
2810 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2811 dri_use |= __DRI_IMAGE_USE_SHARE;
2812 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2813 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2814 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2815 dri_use |= __DRI_IMAGE_USE_CURSOR;
2816
2817 dri2_img = malloc(sizeof *dri2_img);
2818 if (!dri2_img) {
2819 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2820 return EGL_NO_IMAGE_KHR;
2821 }
2822
2823 _eglInitImage(&dri2_img->base, disp);
2824
2825 dri2_img->dri_image =
2826 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2827 attrs.Width, attrs.Height,
2828 format, dri_use, dri2_img);
2829 if (dri2_img->dri_image == NULL) {
2830 free(dri2_img);
2831 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2832 return EGL_NO_IMAGE_KHR;
2833 }
2834
2835 return &dri2_img->base;
2836 }
2837
2838 static EGLBoolean
2839 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2840 EGLint *name, EGLint *handle, EGLint *stride)
2841 {
2842 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2843 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2844
2845 (void) drv;
2846
2847 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2848 __DRI_IMAGE_ATTRIB_NAME, name))
2849 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2850
2851 if (handle)
2852 dri2_dpy->image->queryImage(dri2_img->dri_image,
2853 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2854
2855 if (stride)
2856 dri2_dpy->image->queryImage(dri2_img->dri_image,
2857 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2858
2859 return EGL_TRUE;
2860 }
2861
2862 /**
2863 * Checks if we can support EGL_MESA_image_dma_buf_export on this image.
2864
2865 * The spec provides a boolean return for the driver to reject exporting for
2866 * basically any reason, but doesn't specify any particular error cases. For
2867 * now, we just fail if we don't have a DRM fourcc for the format.
2868 */
2869 static bool
2870 dri2_can_export_dma_buf_image(_EGLDisplay *disp, _EGLImage *img)
2871 {
2872 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2873 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2874 EGLint fourcc;
2875
2876 if (!dri2_dpy->image->queryImage(dri2_img->dri_image,
2877 __DRI_IMAGE_ATTRIB_FOURCC, &fourcc)) {
2878 return false;
2879 }
2880
2881 return true;
2882 }
2883
2884 static EGLBoolean
2885 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2886 _EGLImage *img,
2887 EGLint *fourcc, EGLint *nplanes,
2888 EGLuint64KHR *modifiers)
2889 {
2890 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2891 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2892 int num_planes;
2893
2894 (void) drv;
2895
2896 if (!dri2_can_export_dma_buf_image(disp, img))
2897 return EGL_FALSE;
2898
2899 dri2_dpy->image->queryImage(dri2_img->dri_image,
2900 __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes);
2901 if (nplanes)
2902 *nplanes = num_planes;
2903
2904 if (fourcc)
2905 dri2_dpy->image->queryImage(dri2_img->dri_image,
2906 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
2907
2908 if (modifiers) {
2909 int mod_hi, mod_lo;
2910 uint64_t modifier = DRM_FORMAT_MOD_INVALID;
2911 bool query;
2912
2913 query = dri2_dpy->image->queryImage(dri2_img->dri_image,
2914 __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
2915 &mod_hi);
2916 query &= dri2_dpy->image->queryImage(dri2_img->dri_image,
2917 __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
2918 &mod_lo);
2919 if (query)
2920 modifier = combine_u32_into_u64 (mod_hi, mod_lo);
2921
2922 for (int i = 0; i < num_planes; i++)
2923 modifiers[i] = modifier;
2924 }
2925
2926 return EGL_TRUE;
2927 }
2928
2929 static EGLBoolean
2930 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2931 int *fds, EGLint *strides, EGLint *offsets)
2932 {
2933 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2934 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2935 EGLint nplanes;
2936
2937 (void) drv;
2938
2939 if (!dri2_can_export_dma_buf_image(disp, img))
2940 return EGL_FALSE;
2941
2942 /* EGL_MESA_image_dma_buf_export spec says:
2943 * "If the number of fds is less than the number of planes, then
2944 * subsequent fd slots should contain -1."
2945 */
2946 if (fds) {
2947 /* Query nplanes so that we know how big the given array is. */
2948 dri2_dpy->image->queryImage(dri2_img->dri_image,
2949 __DRI_IMAGE_ATTRIB_NUM_PLANES, &nplanes);
2950 memset(fds, -1, nplanes * sizeof(int));
2951 }
2952
2953 /* rework later to provide multiple fds/strides/offsets */
2954 if (fds)
2955 dri2_dpy->image->queryImage(dri2_img->dri_image,
2956 __DRI_IMAGE_ATTRIB_FD, fds);
2957
2958 if (strides)
2959 dri2_dpy->image->queryImage(dri2_img->dri_image,
2960 __DRI_IMAGE_ATTRIB_STRIDE, strides);
2961
2962 if (offsets) {
2963 int img_offset;
2964 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
2965 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
2966 if (ret)
2967 offsets[0] = img_offset;
2968 else
2969 offsets[0] = 0;
2970 }
2971
2972 return EGL_TRUE;
2973 }
2974
2975 #endif
2976
2977 _EGLImage *
2978 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
2979 _EGLContext *ctx, EGLenum target,
2980 EGLClientBuffer buffer, const EGLint *attr_list)
2981 {
2982 (void) drv;
2983
2984 switch (target) {
2985 case EGL_GL_TEXTURE_2D_KHR:
2986 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2987 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2988 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2989 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2990 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2991 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2992 case EGL_GL_TEXTURE_3D_KHR:
2993 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
2994 case EGL_GL_RENDERBUFFER_KHR:
2995 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
2996 #ifdef HAVE_LIBDRM
2997 case EGL_DRM_BUFFER_MESA:
2998 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
2999 case EGL_LINUX_DMA_BUF_EXT:
3000 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
3001 #endif
3002 #ifdef HAVE_WAYLAND_PLATFORM
3003 case EGL_WAYLAND_BUFFER_WL:
3004 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
3005 #endif
3006 default:
3007 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
3008 return EGL_NO_IMAGE_KHR;
3009 }
3010 }
3011
3012 static EGLBoolean
3013 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
3014 {
3015 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3016 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
3017
3018 (void) drv;
3019
3020 dri2_dpy->image->destroyImage(dri2_img->dri_image);
3021 free(dri2_img);
3022
3023 return EGL_TRUE;
3024 }
3025
3026 #ifdef HAVE_WAYLAND_PLATFORM
3027
3028 static void
3029 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
3030 struct wl_drm_buffer *buffer)
3031 {
3032 _EGLDisplay *disp = user_data;
3033 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3034 __DRIimage *img;
3035 int dri_components = 0;
3036
3037 if (fd == -1)
3038 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
3039 buffer->width,
3040 buffer->height,
3041 buffer->format,
3042 (int*)&name, 1,
3043 buffer->stride,
3044 buffer->offset,
3045 NULL);
3046 else
3047 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
3048 buffer->width,
3049 buffer->height,
3050 buffer->format,
3051 &fd, 1,
3052 buffer->stride,
3053 buffer->offset,
3054 NULL);
3055
3056 if (img == NULL)
3057 return;
3058
3059 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
3060
3061 buffer->driver_format = NULL;
3062 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
3063 if (wl_drm_components[i].dri_components == dri_components)
3064 buffer->driver_format = &wl_drm_components[i];
3065
3066 if (buffer->driver_format == NULL)
3067 dri2_dpy->image->destroyImage(img);
3068 else
3069 buffer->driver_buffer = img;
3070 }
3071
3072 static void
3073 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
3074 {
3075 _EGLDisplay *disp = user_data;
3076 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3077
3078 dri2_dpy->image->destroyImage(buffer->driver_buffer);
3079 }
3080
3081 static EGLBoolean
3082 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
3083 struct wl_display *wl_dpy)
3084 {
3085 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3086 const struct wayland_drm_callbacks wl_drm_callbacks = {
3087 .authenticate = (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate,
3088 .reference_buffer = dri2_wl_reference_buffer,
3089 .release_buffer = dri2_wl_release_buffer,
3090 .is_format_supported = dri2_wl_is_format_supported
3091 };
3092 int flags = 0;
3093 uint64_t cap;
3094
3095 (void) drv;
3096
3097 if (dri2_dpy->wl_server_drm)
3098 return EGL_FALSE;
3099
3100 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
3101 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
3102 dri2_dpy->image->base.version >= 7 &&
3103 dri2_dpy->image->createImageFromFds != NULL)
3104 flags |= WAYLAND_DRM_PRIME;
3105
3106 dri2_dpy->wl_server_drm =
3107 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
3108 &wl_drm_callbacks, disp, flags);
3109
3110 if (!dri2_dpy->wl_server_drm)
3111 return EGL_FALSE;
3112
3113 #ifdef HAVE_DRM_PLATFORM
3114 /* We have to share the wl_drm instance with gbm, so gbm can convert
3115 * wl_buffers to gbm bos. */
3116 if (dri2_dpy->gbm_dri)
3117 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
3118 #endif
3119
3120 return EGL_TRUE;
3121 }
3122
3123 static EGLBoolean
3124 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
3125 struct wl_display *wl_dpy)
3126 {
3127 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3128
3129 (void) drv;
3130
3131 if (!dri2_dpy->wl_server_drm)
3132 return EGL_FALSE;
3133
3134 wayland_drm_uninit(dri2_dpy->wl_server_drm);
3135 dri2_dpy->wl_server_drm = NULL;
3136
3137 return EGL_TRUE;
3138 }
3139
3140 static EGLBoolean
3141 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
3142 struct wl_resource *buffer_resource,
3143 EGLint attribute, EGLint *value)
3144 {
3145 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3146 struct wl_drm_buffer *buffer;
3147 const struct wl_drm_components_descriptor *format;
3148
3149 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
3150 if (!buffer)
3151 return EGL_FALSE;
3152
3153 format = buffer->driver_format;
3154 switch (attribute) {
3155 case EGL_TEXTURE_FORMAT:
3156 *value = format->components;
3157 return EGL_TRUE;
3158 case EGL_WIDTH:
3159 *value = buffer->width;
3160 return EGL_TRUE;
3161 case EGL_HEIGHT:
3162 *value = buffer->height;
3163 return EGL_TRUE;
3164 }
3165
3166 return EGL_FALSE;
3167 }
3168 #endif
3169
3170 static void
3171 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
3172 {
3173 p_atomic_inc(&sync->refcount);
3174 }
3175
3176 static void
3177 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
3178 struct dri2_egl_sync *dri2_sync)
3179 {
3180 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
3181 switch (dri2_sync->base.Type) {
3182 case EGL_SYNC_REUSABLE_KHR:
3183 cnd_destroy(&dri2_sync->cond);
3184 break;
3185 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3186 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
3187 close(dri2_sync->base.SyncFd);
3188 break;
3189 default:
3190 break;
3191 }
3192
3193 if (dri2_sync->fence)
3194 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
3195
3196 free(dri2_sync);
3197 }
3198 }
3199
3200 static _EGLSync *
3201 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *disp,
3202 EGLenum type, const EGLAttrib *attrib_list)
3203 {
3204 _EGLContext *ctx = _eglGetCurrentContext();
3205 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3206 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3207 struct dri2_egl_sync *dri2_sync;
3208 EGLint ret;
3209 pthread_condattr_t attr;
3210
3211 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
3212 if (!dri2_sync) {
3213 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3214 return NULL;
3215 }
3216
3217 if (!_eglInitSync(&dri2_sync->base, disp, type, attrib_list)) {
3218 free(dri2_sync);
3219 return NULL;
3220 }
3221
3222 switch (type) {
3223 case EGL_SYNC_FENCE_KHR:
3224 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
3225 if (!dri2_sync->fence) {
3226 /* Why did it fail? DRI doesn't return an error code, so we emit
3227 * a generic EGL error that doesn't communicate user error.
3228 */
3229 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3230 free(dri2_sync);
3231 return NULL;
3232 }
3233 break;
3234
3235 case EGL_SYNC_CL_EVENT_KHR:
3236 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
3237 dri2_dpy->dri_screen,
3238 dri2_sync->base.CLEvent);
3239 /* this can only happen if the cl_event passed in is invalid. */
3240 if (!dri2_sync->fence) {
3241 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3242 free(dri2_sync);
3243 return NULL;
3244 }
3245
3246 /* the initial status must be "signaled" if the cl_event is signaled */
3247 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
3248 dri2_sync->fence, 0, 0))
3249 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3250 break;
3251
3252 case EGL_SYNC_REUSABLE_KHR:
3253 /* intialize attr */
3254 ret = pthread_condattr_init(&attr);
3255
3256 if (ret) {
3257 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3258 free(dri2_sync);
3259 return NULL;
3260 }
3261
3262 /* change clock attribute to CLOCK_MONOTONIC */
3263 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
3264
3265 if (ret) {
3266 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3267 free(dri2_sync);
3268 return NULL;
3269 }
3270
3271 ret = pthread_cond_init(&dri2_sync->cond, &attr);
3272
3273 if (ret) {
3274 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3275 free(dri2_sync);
3276 return NULL;
3277 }
3278
3279 /* initial status of reusable sync must be "unsignaled" */
3280 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
3281 break;
3282
3283 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3284 if (dri2_dpy->fence->create_fence_fd) {
3285 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
3286 dri2_ctx->dri_context,
3287 dri2_sync->base.SyncFd);
3288 }
3289 if (!dri2_sync->fence) {
3290 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3291 free(dri2_sync);
3292 return NULL;
3293 }
3294 break;
3295 }
3296
3297 p_atomic_set(&dri2_sync->refcount, 1);
3298 return &dri2_sync->base;
3299 }
3300
3301 static EGLBoolean
3302 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3303 {
3304 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3305 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3306 EGLint ret = EGL_TRUE;
3307 EGLint err;
3308
3309 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
3310 * then unlock all threads possibly blocked by the reusable sync before
3311 * destroying it.
3312 */
3313 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
3314 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3315 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3316 /* unblock all threads currently blocked by sync */
3317 err = cnd_broadcast(&dri2_sync->cond);
3318
3319 if (err) {
3320 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
3321 ret = EGL_FALSE;
3322 }
3323 }
3324
3325 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3326
3327 return ret;
3328 }
3329
3330 static EGLint
3331 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3332 {
3333 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3334 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3335
3336 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
3337
3338 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3339 /* try to retrieve the actual native fence fd.. if rendering is
3340 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
3341 */
3342 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
3343 dri2_sync->fence);
3344 }
3345
3346 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3347 /* if native fence fd still not created, return an error: */
3348 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
3349 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
3350 }
3351
3352 return dup(sync->SyncFd);
3353 }
3354
3355 static void
3356 dri2_set_blob_cache_funcs(_EGLDriver *drv, _EGLDisplay *disp,
3357 EGLSetBlobFuncANDROID set,
3358 EGLGetBlobFuncANDROID get)
3359 {
3360 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3361 dri2_dpy->blob->set_cache_funcs(dri2_dpy->dri_screen,
3362 disp->BlobCacheSet,
3363 disp->BlobCacheGet);
3364 }
3365
3366 static EGLint
3367 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3368 EGLint flags, EGLTime timeout)
3369 {
3370 _EGLContext *ctx = _eglGetCurrentContext();
3371 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3372 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3373 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3374 unsigned wait_flags = 0;
3375
3376 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
3377
3378 /* The EGL_KHR_fence_sync spec states:
3379 *
3380 * "If no context is current for the bound API,
3381 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
3382 */
3383 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
3384 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
3385
3386 /* the sync object should take a reference while waiting */
3387 dri2_egl_ref_sync(dri2_sync);
3388
3389 switch (sync->Type) {
3390 case EGL_SYNC_FENCE_KHR:
3391 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3392 case EGL_SYNC_CL_EVENT_KHR:
3393 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
3394 dri2_sync->fence, wait_flags,
3395 timeout))
3396 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3397 else
3398 ret = EGL_TIMEOUT_EXPIRED_KHR;
3399 break;
3400
3401 case EGL_SYNC_REUSABLE_KHR:
3402 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
3403 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
3404 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
3405 dri2_gl_flush();
3406 }
3407
3408 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
3409 if (timeout == EGL_FOREVER_KHR) {
3410 mtx_lock(&dri2_sync->mutex);
3411 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
3412 mtx_unlock(&dri2_sync->mutex);
3413 } else {
3414 /* if reusable sync has not been yet signaled */
3415 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
3416 /* timespecs for cnd_timedwait */
3417 struct timespec current;
3418 struct timespec expire;
3419
3420 /* We override the clock to monotonic when creating the condition
3421 * variable. */
3422 clock_gettime(CLOCK_MONOTONIC, &current);
3423
3424 /* calculating when to expire */
3425 expire.tv_nsec = timeout % 1000000000L;
3426 expire.tv_sec = timeout / 1000000000L;
3427
3428 expire.tv_nsec += current.tv_nsec;
3429 expire.tv_sec += current.tv_sec;
3430
3431 /* expire.nsec now is a number between 0 and 1999999998 */
3432 if (expire.tv_nsec > 999999999L) {
3433 expire.tv_sec++;
3434 expire.tv_nsec -= 1000000000L;
3435 }
3436
3437 mtx_lock(&dri2_sync->mutex);
3438 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3439 mtx_unlock(&dri2_sync->mutex);
3440
3441 if (ret == thrd_busy) {
3442 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3443 ret = EGL_TIMEOUT_EXPIRED_KHR;
3444 } else {
3445 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3446 ret = EGL_FALSE;
3447 }
3448 }
3449 }
3450 }
3451 break;
3452 }
3453 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3454
3455 return ret;
3456 }
3457
3458 static EGLBoolean
3459 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3460 EGLenum mode)
3461 {
3462 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3463 EGLint ret;
3464
3465 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3466 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3467
3468 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3469 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3470
3471 dri2_sync->base.SyncStatus = mode;
3472
3473 if (mode == EGL_SIGNALED_KHR) {
3474 ret = cnd_broadcast(&dri2_sync->cond);
3475
3476 /* fail to broadcast */
3477 if (ret)
3478 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3479 }
3480
3481 return EGL_TRUE;
3482 }
3483
3484 static EGLint
3485 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3486 {
3487 _EGLContext *ctx = _eglGetCurrentContext();
3488 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3489 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3490 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3491
3492 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3493 dri2_sync->fence, 0);
3494 return EGL_TRUE;
3495 }
3496
3497 static int
3498 dri2_interop_query_device_info(_EGLDisplay *disp, _EGLContext *ctx,
3499 struct mesa_glinterop_device_info *out)
3500 {
3501 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3502 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3503
3504 if (!dri2_dpy->interop)
3505 return MESA_GLINTEROP_UNSUPPORTED;
3506
3507 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3508 }
3509
3510 static int
3511 dri2_interop_export_object(_EGLDisplay *disp, _EGLContext *ctx,
3512 struct mesa_glinterop_export_in *in,
3513 struct mesa_glinterop_export_out *out)
3514 {
3515 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3516 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3517
3518 if (!dri2_dpy->interop)
3519 return MESA_GLINTEROP_UNSUPPORTED;
3520
3521 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3522 }
3523
3524 /**
3525 * This is the main entrypoint into the driver, called by libEGL.
3526 * Gets an _EGLDriver object and init its dispatch table.
3527 */
3528 void
3529 _eglInitDriver(_EGLDriver *dri2_drv)
3530 {
3531 dri2_drv->API.Initialize = dri2_initialize;
3532 dri2_drv->API.Terminate = dri2_terminate;
3533 dri2_drv->API.CreateContext = dri2_create_context;
3534 dri2_drv->API.DestroyContext = dri2_destroy_context;
3535 dri2_drv->API.MakeCurrent = dri2_make_current;
3536 dri2_drv->API.CreateWindowSurface = dri2_create_window_surface;
3537 dri2_drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
3538 dri2_drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3539 dri2_drv->API.DestroySurface = dri2_destroy_surface;
3540 dri2_drv->API.GetProcAddress = dri2_get_proc_address;
3541 dri2_drv->API.WaitClient = dri2_wait_client;
3542 dri2_drv->API.WaitNative = dri2_wait_native;
3543 dri2_drv->API.BindTexImage = dri2_bind_tex_image;
3544 dri2_drv->API.ReleaseTexImage = dri2_release_tex_image;
3545 dri2_drv->API.SwapInterval = dri2_swap_interval;
3546 dri2_drv->API.SwapBuffers = dri2_swap_buffers;
3547 dri2_drv->API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3548 dri2_drv->API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3549 dri2_drv->API.SetDamageRegion = dri2_set_damage_region;
3550 dri2_drv->API.PostSubBufferNV = dri2_post_sub_buffer;
3551 dri2_drv->API.CopyBuffers = dri2_copy_buffers,
3552 dri2_drv->API.QueryBufferAge = dri2_query_buffer_age;
3553 dri2_drv->API.CreateImageKHR = dri2_create_image;
3554 dri2_drv->API.DestroyImageKHR = dri2_destroy_image_khr;
3555 dri2_drv->API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3556 dri2_drv->API.QuerySurface = dri2_query_surface;
3557 dri2_drv->API.QueryDriverName = dri2_query_driver_name;
3558 dri2_drv->API.QueryDriverConfig = dri2_query_driver_config;
3559 #ifdef HAVE_LIBDRM
3560 dri2_drv->API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3561 dri2_drv->API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3562 dri2_drv->API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3563 dri2_drv->API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3564 dri2_drv->API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3565 dri2_drv->API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3566 #endif
3567 #ifdef HAVE_WAYLAND_PLATFORM
3568 dri2_drv->API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3569 dri2_drv->API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3570 dri2_drv->API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3571 #endif
3572 dri2_drv->API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3573 dri2_drv->API.CreateSyncKHR = dri2_create_sync;
3574 dri2_drv->API.ClientWaitSyncKHR = dri2_client_wait_sync;
3575 dri2_drv->API.SignalSyncKHR = dri2_signal_sync;
3576 dri2_drv->API.WaitSyncKHR = dri2_server_wait_sync;
3577 dri2_drv->API.DestroySyncKHR = dri2_destroy_sync;
3578 dri2_drv->API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3579 dri2_drv->API.GLInteropExportObject = dri2_interop_export_object;
3580 dri2_drv->API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3581 dri2_drv->API.SetBlobCacheFuncsANDROID = dri2_set_blob_cache_funcs;
3582 }