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35c48242ce26395e8b2ff4796ec365cb9b7a5cc5
[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/os_file.h"
66 #include "util/u_atomic.h"
67 #include "util/u_vector.h"
68 #include "mapi/glapi/glapi.h"
69 #include "util/bitscan.h"
70 #include "util/u_math.h"
71
72 /* Additional definitions not yet in the drm_fourcc.h.
73 */
74 #ifndef DRM_FORMAT_P010
75 #define DRM_FORMAT_P010 fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cb:Cr plane 10 bits per channel */
76 #endif
77
78 #ifndef DRM_FORMAT_P012
79 #define DRM_FORMAT_P012 fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cb:Cr plane 12 bits per channel */
80 #endif
81
82 #ifndef DRM_FORMAT_P016
83 #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cb:Cr plane 16 bits per channel */
84 #endif
85
86 #define NUM_ATTRIBS 12
87
88 static const struct dri2_pbuffer_visual {
89 const char *format_name;
90 unsigned int dri_image_format;
91 int rgba_shifts[4];
92 unsigned int rgba_sizes[4];
93 } dri2_pbuffer_visuals[] = {
94 {
95 "ABGR16F",
96 __DRI_IMAGE_FORMAT_ABGR16161616F,
97 { 0, 16, 32, 48 },
98 { 16, 16, 16, 16 }
99 },
100 {
101 "XBGR16F",
102 __DRI_IMAGE_FORMAT_XBGR16161616F,
103 { 0, 16, 32, -1 },
104 { 16, 16, 16, 0 }
105 },
106 {
107 "A2RGB10",
108 __DRI_IMAGE_FORMAT_ARGB2101010,
109 { 20, 10, 0, 30 },
110 { 10, 10, 10, 2 }
111 },
112 {
113 "X2RGB10",
114 __DRI_IMAGE_FORMAT_XRGB2101010,
115 { 20, 10, 0, -1 },
116 { 10, 10, 10, 0 }
117 },
118 {
119 "ARGB8888",
120 __DRI_IMAGE_FORMAT_ARGB8888,
121 { 16, 8, 0, 24 },
122 { 8, 8, 8, 8 }
123 },
124 {
125 "RGB888",
126 __DRI_IMAGE_FORMAT_XRGB8888,
127 { 16, 8, 0, -1 },
128 { 8, 8, 8, 0 }
129 },
130 {
131 "RGB565",
132 __DRI_IMAGE_FORMAT_RGB565,
133 { 11, 5, 0, -1 },
134 { 5, 6, 5, 0 }
135 },
136 };
137
138 static void
139 dri_set_background_context(void *loaderPrivate)
140 {
141 _EGLContext *ctx = _eglGetCurrentContext();
142 _EGLThreadInfo *t = _eglGetCurrentThread();
143
144 _eglBindContextToThread(ctx, t);
145 }
146
147 static void
148 dri2_gl_flush()
149 {
150 static void (*glFlush)(void);
151 static mtx_t glFlushMutex = _MTX_INITIALIZER_NP;
152
153 mtx_lock(&glFlushMutex);
154 if (!glFlush)
155 glFlush = _glapi_get_proc_address("glFlush");
156 mtx_unlock(&glFlushMutex);
157
158 /* if glFlush is not available things are horribly broken */
159 if (!glFlush) {
160 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
161 return;
162 }
163
164 glFlush();
165 }
166
167 static GLboolean
168 dri_is_thread_safe(void *loaderPrivate)
169 {
170 struct dri2_egl_surface *dri2_surf = loaderPrivate;
171 UNUSED _EGLDisplay *display = dri2_surf->base.Resource.Display;
172
173 #ifdef HAVE_X11_PLATFORM
174 Display *xdpy = (Display*)display->PlatformDisplay;
175
176 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
177 * platform
178 *
179 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
180 * It wll be NULL if XInitThreads wasn't called.
181 */
182 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
183 return false;
184 #endif
185
186 #ifdef HAVE_WAYLAND_PLATFORM
187 if (display->Platform == _EGL_PLATFORM_WAYLAND)
188 return true;
189 #endif
190
191 return true;
192 }
193
194 const __DRIbackgroundCallableExtension background_callable_extension = {
195 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
196
197 .setBackgroundContext = dri_set_background_context,
198 .isThreadSafe = dri_is_thread_safe,
199 };
200
201 const __DRIuseInvalidateExtension use_invalidate = {
202 .base = { __DRI_USE_INVALIDATE, 1 }
203 };
204
205 static void
206 dri2_get_pbuffer_drawable_info(__DRIdrawable * draw,
207 int *x, int *y, int *w, int *h,
208 void *loaderPrivate)
209 {
210 struct dri2_egl_surface *dri2_surf = loaderPrivate;
211
212 *x = *y = 0;
213 *w = dri2_surf->base.Width;
214 *h = dri2_surf->base.Height;
215 }
216
217 static int
218 dri2_get_bytes_per_pixel(struct dri2_egl_surface *dri2_surf)
219 {
220 const int depth = dri2_surf->base.Config->BufferSize;
221 return depth ? util_next_power_of_two(depth / 8) : 0;
222 }
223
224 static void
225 dri2_put_image(__DRIdrawable * draw, int op,
226 int x, int y, int w, int h,
227 char *data, void *loaderPrivate)
228 {
229 struct dri2_egl_surface *dri2_surf = loaderPrivate;
230 const int bpp = dri2_get_bytes_per_pixel(dri2_surf);
231 const int width = dri2_surf->base.Width;
232 const int height = dri2_surf->base.Height;
233 const int dst_stride = width*bpp;
234 const int src_stride = w*bpp;
235 const int x_offset = x*bpp;
236 int copy_width = src_stride;
237
238 if (!dri2_surf->swrast_device_buffer)
239 dri2_surf->swrast_device_buffer = malloc(height*dst_stride);
240
241 if (dri2_surf->swrast_device_buffer) {
242 const char *src = data;
243 char *dst = dri2_surf->swrast_device_buffer;
244
245 dst += x_offset;
246 dst += y*dst_stride;
247
248 /* Drivers are allowed to submit OOB PutImage requests, so clip here. */
249 if (copy_width > dst_stride - x_offset)
250 copy_width = dst_stride - x_offset;
251 if (h > height - y)
252 h = height - y;
253
254 for (; 0 < h; --h) {
255 memcpy(dst, src, copy_width);
256 dst += dst_stride;
257 src += src_stride;
258 }
259 }
260 }
261
262 static void
263 dri2_get_image(__DRIdrawable * read,
264 int x, int y, int w, int h,
265 char *data, void *loaderPrivate)
266 {
267 struct dri2_egl_surface *dri2_surf = loaderPrivate;
268 const int bpp = dri2_get_bytes_per_pixel(dri2_surf);
269 const int width = dri2_surf->base.Width;
270 const int height = dri2_surf->base.Height;
271 const int src_stride = width*bpp;
272 const int dst_stride = w*bpp;
273 const int x_offset = x*bpp;
274 int copy_width = dst_stride;
275 const char *src = dri2_surf->swrast_device_buffer;
276 char *dst = data;
277
278 if (!src) {
279 memset(data, 0, copy_width * h);
280 return;
281 }
282
283 src += x_offset;
284 src += y*src_stride;
285
286 /* Drivers are allowed to submit OOB GetImage requests, so clip here. */
287 if (copy_width > src_stride - x_offset)
288 copy_width = src_stride - x_offset;
289 if (h > height - y)
290 h = height - y;
291
292 for (; 0 < h; --h) {
293 memcpy(dst, src, copy_width);
294 src += src_stride;
295 dst += dst_stride;
296 }
297
298 }
299
300 /* HACK: technically we should have swrast_null, instead of these.
301 */
302 const __DRIswrastLoaderExtension swrast_pbuffer_loader_extension = {
303 .base = { __DRI_SWRAST_LOADER, 1 },
304 .getDrawableInfo = dri2_get_pbuffer_drawable_info,
305 .putImage = dri2_put_image,
306 .getImage = dri2_get_image,
307 };
308
309 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
310 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
311 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
312 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
313 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
314 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
315 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
316 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
317 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
318 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
319 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
320 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
321 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
322 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
323 };
324
325 const __DRIconfig *
326 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
327 EGLenum colorspace)
328 {
329 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
330 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
331
332 return conf->dri_config[double_buffer][srgb];
333 }
334
335 static EGLBoolean
336 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
337 {
338 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
339 return EGL_FALSE;
340
341 if (!_eglMatchConfig(conf, criteria))
342 return EGL_FALSE;
343
344 return EGL_TRUE;
345 }
346
347 void
348 dri2_get_shifts_and_sizes(const __DRIcoreExtension *core,
349 const __DRIconfig *config, int *shifts,
350 unsigned int *sizes)
351 {
352 unsigned int mask;
353
354 if (core->getConfigAttrib(config, __DRI_ATTRIB_RED_SHIFT, (unsigned int *)&shifts[0])) {
355 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_SHIFT, (unsigned int *)&shifts[1]);
356 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_SHIFT, (unsigned int *)&shifts[2]);
357 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_SHIFT, (unsigned int *)&shifts[3]);
358 } else {
359 /* Driver isn't exposing shifts, so convert masks to shifts */
360 core->getConfigAttrib(config, __DRI_ATTRIB_RED_MASK, &mask);
361 shifts[0] = ffs(mask) - 1;
362 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_MASK, &mask);
363 shifts[1] = ffs(mask) - 1;
364 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_MASK, &mask);
365 shifts[2] = ffs(mask) - 1;
366 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_MASK, &mask);
367 shifts[3] = ffs(mask) - 1;
368 }
369
370 core->getConfigAttrib(config, __DRI_ATTRIB_RED_SIZE, &sizes[0]);
371 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_SIZE, &sizes[1]);
372 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_SIZE, &sizes[2]);
373 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_SIZE, &sizes[3]);
374 }
375
376 void
377 dri2_get_render_type_float(const __DRIcoreExtension *core,
378 const __DRIconfig *config,
379 bool *is_float)
380 {
381 unsigned int render_type;
382
383 core->getConfigAttrib(config, __DRI_ATTRIB_RENDER_TYPE, &render_type);
384 *is_float = (render_type & __DRI_ATTRIB_FLOAT_BIT) ? true : false;
385 }
386
387 unsigned int
388 dri2_image_format_for_pbuffer_config(struct dri2_egl_display *dri2_dpy,
389 const __DRIconfig *config)
390 {
391 int shifts[4];
392 unsigned int sizes[4];
393
394 dri2_get_shifts_and_sizes(dri2_dpy->core, config, shifts, sizes);
395
396 for (unsigned i = 0; i < ARRAY_SIZE(dri2_pbuffer_visuals); ++i) {
397 const struct dri2_pbuffer_visual *visual = &dri2_pbuffer_visuals[i];
398
399 if (shifts[0] == visual->rgba_shifts[0] &&
400 shifts[1] == visual->rgba_shifts[1] &&
401 shifts[2] == visual->rgba_shifts[2] &&
402 shifts[3] == visual->rgba_shifts[3] &&
403 sizes[0] == visual->rgba_sizes[0] &&
404 sizes[1] == visual->rgba_sizes[1] &&
405 sizes[2] == visual->rgba_sizes[2] &&
406 sizes[3] == visual->rgba_sizes[3]) {
407 return visual->dri_image_format;
408 }
409 }
410
411 return __DRI_IMAGE_FORMAT_NONE;
412 }
413
414 struct dri2_egl_config *
415 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
416 EGLint surface_type, const EGLint *attr_list,
417 const int *rgba_shifts, const unsigned int *rgba_sizes)
418 {
419 struct dri2_egl_config *conf;
420 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
421 _EGLConfig base;
422 unsigned int attrib, value, double_buffer;
423 bool srgb = false;
424 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
425 int dri_shifts[4] = { -1, -1, -1, -1 };
426 unsigned int dri_sizes[4] = { 0, 0, 0, 0 };
427 _EGLConfig *matching_config;
428 EGLint num_configs = 0;
429 EGLint config_id;
430
431 _eglInitConfig(&base, disp, id);
432
433 double_buffer = 0;
434 bind_to_texture_rgb = 0;
435 bind_to_texture_rgba = 0;
436
437 for (int i = 0; i < __DRI_ATTRIB_MAX; ++i) {
438 if (!dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib, &value))
439 break;
440
441 switch (attrib) {
442 case __DRI_ATTRIB_RENDER_TYPE:
443 if (value & __DRI_ATTRIB_FLOAT_BIT)
444 base.ComponentType = EGL_COLOR_COMPONENT_TYPE_FLOAT_EXT;
445 if (value & __DRI_ATTRIB_RGBA_BIT)
446 value = EGL_RGB_BUFFER;
447 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
448 value = EGL_LUMINANCE_BUFFER;
449 else
450 return NULL;
451 base.ColorBufferType = value;
452 break;
453
454 case __DRI_ATTRIB_CONFIG_CAVEAT:
455 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
456 value = EGL_NON_CONFORMANT_CONFIG;
457 else if (value & __DRI_ATTRIB_SLOW_BIT)
458 value = EGL_SLOW_CONFIG;
459 else
460 value = EGL_NONE;
461 base.ConfigCaveat = value;
462 break;
463
464 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
465 bind_to_texture_rgb = value;
466 break;
467
468 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
469 bind_to_texture_rgba = value;
470 break;
471
472 case __DRI_ATTRIB_DOUBLE_BUFFER:
473 double_buffer = value;
474 break;
475
476 case __DRI_ATTRIB_RED_SIZE:
477 dri_sizes[0] = value;
478 base.RedSize = value;
479 break;
480
481 case __DRI_ATTRIB_RED_MASK:
482 dri_shifts[0] = ffs(value) - 1;
483 break;
484
485 case __DRI_ATTRIB_RED_SHIFT:
486 dri_shifts[0] = value;
487 break;
488
489 case __DRI_ATTRIB_GREEN_SIZE:
490 dri_sizes[1] = value;
491 base.GreenSize = value;
492 break;
493
494 case __DRI_ATTRIB_GREEN_MASK:
495 dri_shifts[1] = ffs(value) - 1;
496 break;
497
498 case __DRI_ATTRIB_GREEN_SHIFT:
499 dri_shifts[1] = value;
500 break;
501
502 case __DRI_ATTRIB_BLUE_SIZE:
503 dri_sizes[2] = value;
504 base.BlueSize = value;
505 break;
506
507 case __DRI_ATTRIB_BLUE_MASK:
508 dri_shifts[2] = ffs(value) - 1;
509 break;
510
511 case __DRI_ATTRIB_BLUE_SHIFT:
512 dri_shifts[2] = value;
513 break;
514
515 case __DRI_ATTRIB_ALPHA_SIZE:
516 dri_sizes[3] = value;
517 base.AlphaSize = value;
518 break;
519
520 case __DRI_ATTRIB_ALPHA_MASK:
521 dri_shifts[3] = ffs(value) - 1;
522 break;
523
524 case __DRI_ATTRIB_ALPHA_SHIFT:
525 dri_shifts[3] = value;
526 break;
527
528 case __DRI_ATTRIB_ACCUM_RED_SIZE:
529 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
530 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
531 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
532 /* Don't expose visuals with the accumulation buffer. */
533 if (value > 0)
534 return NULL;
535 break;
536
537 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
538 srgb = value != 0;
539 if (!disp->Extensions.KHR_gl_colorspace && srgb)
540 return NULL;
541 break;
542
543 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
544 base.MaxPbufferWidth = _EGL_MAX_PBUFFER_WIDTH;
545 break;
546 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
547 base.MaxPbufferHeight = _EGL_MAX_PBUFFER_HEIGHT;
548 break;
549 case __DRI_ATTRIB_MUTABLE_RENDER_BUFFER:
550 if (disp->Extensions.KHR_mutable_render_buffer)
551 surface_type |= EGL_MUTABLE_RENDER_BUFFER_BIT_KHR;
552 break;
553 default:
554 key = dri2_to_egl_attribute_map[attrib];
555 if (key != 0)
556 _eglSetConfigKey(&base, key, value);
557 break;
558 }
559 }
560
561 if (attr_list)
562 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
563 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
564
565 if (rgba_shifts && memcmp(rgba_shifts, dri_shifts, sizeof(dri_shifts)))
566 return NULL;
567
568 if (rgba_sizes && memcmp(rgba_sizes, dri_sizes, sizeof(dri_sizes)))
569 return NULL;
570
571 base.NativeRenderable = EGL_TRUE;
572
573 base.SurfaceType = surface_type;
574 if (surface_type & (EGL_PBUFFER_BIT |
575 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
576 base.BindToTextureRGB = bind_to_texture_rgb;
577 if (base.AlphaSize > 0)
578 base.BindToTextureRGBA = bind_to_texture_rgba;
579 }
580
581 if (double_buffer) {
582 surface_type &= ~EGL_PIXMAP_BIT;
583 }
584
585 /* No support for pbuffer + MSAA for now.
586 *
587 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
588 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
589 */
590 if (base.Samples) {
591 surface_type &= ~EGL_PBUFFER_BIT;
592 }
593
594 if (!surface_type)
595 return NULL;
596
597 base.RenderableType = disp->ClientAPIs;
598 base.Conformant = disp->ClientAPIs;
599
600 base.MinSwapInterval = dri2_dpy->min_swap_interval;
601 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
602
603 if (!_eglValidateConfig(&base, EGL_FALSE)) {
604 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
605 return NULL;
606 }
607
608 config_id = base.ConfigID;
609 base.ConfigID = EGL_DONT_CARE;
610 base.SurfaceType = EGL_DONT_CARE;
611 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
612 (_EGLArrayForEach) dri2_match_config, &base);
613
614 if (num_configs == 1) {
615 conf = (struct dri2_egl_config *) matching_config;
616
617 if (!conf->dri_config[double_buffer][srgb])
618 conf->dri_config[double_buffer][srgb] = dri_config;
619 else
620 /* a similar config type is already added (unlikely) => discard */
621 return NULL;
622 }
623 else if (num_configs == 0) {
624 conf = calloc(1, sizeof *conf);
625 if (conf == NULL)
626 return NULL;
627
628 conf->dri_config[double_buffer][srgb] = dri_config;
629
630 memcpy(&conf->base, &base, sizeof base);
631 conf->base.SurfaceType = 0;
632 conf->base.ConfigID = config_id;
633
634 _eglLinkConfig(&conf->base);
635 }
636 else {
637 unreachable("duplicates should not be possible");
638 return NULL;
639 }
640
641 conf->base.SurfaceType |= surface_type;
642
643 return conf;
644 }
645
646 EGLBoolean
647 dri2_add_pbuffer_configs_for_visuals(_EGLDisplay *disp)
648 {
649 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
650 unsigned int format_count[ARRAY_SIZE(dri2_pbuffer_visuals)] = { 0 };
651 unsigned int config_count = 0;
652
653 for (unsigned i = 0; dri2_dpy->driver_configs[i] != NULL; i++) {
654 for (unsigned j = 0; j < ARRAY_SIZE(dri2_pbuffer_visuals); j++) {
655 struct dri2_egl_config *dri2_conf;
656
657 dri2_conf = dri2_add_config(disp, dri2_dpy->driver_configs[i],
658 config_count + 1, EGL_PBUFFER_BIT, NULL,
659 dri2_pbuffer_visuals[j].rgba_shifts, dri2_pbuffer_visuals[j].rgba_sizes);
660
661 if (dri2_conf) {
662 if (dri2_conf->base.ConfigID == config_count + 1)
663 config_count++;
664 format_count[j]++;
665 }
666 }
667 }
668
669 for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
670 if (!format_count[i]) {
671 _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",
672 dri2_pbuffer_visuals[i].format_name);
673 }
674 }
675
676 return (config_count != 0);
677 }
678
679 __DRIimage *
680 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
681 {
682 _EGLDisplay *disp = data;
683 struct dri2_egl_image *dri2_img;
684 _EGLImage *img;
685
686 (void) screen;
687
688 img = _eglLookupImage(image, disp);
689 if (img == NULL) {
690 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
691 return NULL;
692 }
693
694 dri2_img = dri2_egl_image(image);
695
696 return dri2_img->dri_image;
697 }
698
699 const __DRIimageLookupExtension image_lookup_extension = {
700 .base = { __DRI_IMAGE_LOOKUP, 1 },
701
702 .lookupEGLImage = dri2_lookup_egl_image
703 };
704
705 struct dri2_extension_match {
706 const char *name;
707 int version;
708 int offset;
709 };
710
711 static const struct dri2_extension_match dri3_driver_extensions[] = {
712 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
713 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
714 { NULL, 0, 0 }
715 };
716
717 static const struct dri2_extension_match dri2_driver_extensions[] = {
718 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
719 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
720 { NULL, 0, 0 }
721 };
722
723 static const struct dri2_extension_match dri2_core_extensions[] = {
724 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
725 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
726 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
727 { NULL, 0, 0 }
728 };
729
730 static const struct dri2_extension_match swrast_driver_extensions[] = {
731 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
732 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
733 { NULL, 0, 0 }
734 };
735
736 static const struct dri2_extension_match swrast_core_extensions[] = {
737 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
738 { NULL, 0, 0 }
739 };
740
741 static const struct dri2_extension_match optional_driver_extensions[] = {
742 { __DRI_CONFIG_OPTIONS, 1, offsetof(struct dri2_egl_display, configOptions) },
743 { NULL, 0, 0 }
744 };
745
746 static const struct dri2_extension_match optional_core_extensions[] = {
747 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
748 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
749 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
750 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
751 { __DRI2_BUFFER_DAMAGE, 1, offsetof(struct dri2_egl_display, buffer_damage) },
752 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
753 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
754 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
755 { __DRI2_FLUSH_CONTROL, 1, offsetof(struct dri2_egl_display, flush_control) },
756 { __DRI2_BLOB, 1, offsetof(struct dri2_egl_display, blob) },
757 { __DRI_MUTABLE_RENDER_BUFFER_DRIVER, 1, offsetof(struct dri2_egl_display, mutable_render_buffer) },
758 { NULL, 0, 0 }
759 };
760
761 static EGLBoolean
762 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
763 const struct dri2_extension_match *matches,
764 const __DRIextension **extensions,
765 bool optional)
766 {
767 int ret = EGL_TRUE;
768 void *field;
769
770 for (int i = 0; extensions[i]; i++) {
771 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
772 for (int j = 0; matches[j].name; j++) {
773 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
774 extensions[i]->version >= matches[j].version) {
775 field = ((char *) dri2_dpy + matches[j].offset);
776 *(const __DRIextension **) field = extensions[i];
777 _eglLog(_EGL_INFO, "found extension %s version %d",
778 extensions[i]->name, extensions[i]->version);
779 break;
780 }
781 }
782 }
783
784 for (int j = 0; matches[j].name; j++) {
785 field = ((char *) dri2_dpy + matches[j].offset);
786 if (*(const __DRIextension **) field == NULL) {
787 if (optional) {
788 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
789 matches[j].name, matches[j].version);
790 } else {
791 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
792 matches[j].name, matches[j].version);
793 ret = EGL_FALSE;
794 }
795 }
796 }
797
798 return ret;
799 }
800
801 static const __DRIextension **
802 dri2_open_driver(_EGLDisplay *disp)
803 {
804 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
805 static const char *search_path_vars[] = {
806 "LIBGL_DRIVERS_PATH",
807 NULL,
808 };
809
810 return loader_open_driver(dri2_dpy->driver_name,
811 &dri2_dpy->driver,
812 search_path_vars);
813 }
814
815 static EGLBoolean
816 dri2_load_driver_common(_EGLDisplay *disp,
817 const struct dri2_extension_match *driver_extensions)
818 {
819 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
820 const __DRIextension **extensions;
821
822 extensions = dri2_open_driver(disp);
823 if (!extensions)
824 return EGL_FALSE;
825
826 if (!dri2_bind_extensions(dri2_dpy, driver_extensions, extensions, false)) {
827 dlclose(dri2_dpy->driver);
828 dri2_dpy->driver = NULL;
829 return EGL_FALSE;
830 }
831 dri2_dpy->driver_extensions = extensions;
832
833 dri2_bind_extensions(dri2_dpy, optional_driver_extensions, extensions, true);
834
835 return EGL_TRUE;
836 }
837
838 EGLBoolean
839 dri2_load_driver(_EGLDisplay *disp)
840 {
841 return dri2_load_driver_common(disp, dri2_driver_extensions);
842 }
843
844 EGLBoolean
845 dri2_load_driver_dri3(_EGLDisplay *disp)
846 {
847 return dri2_load_driver_common(disp, dri3_driver_extensions);
848 }
849
850 EGLBoolean
851 dri2_load_driver_swrast(_EGLDisplay *disp)
852 {
853 return dri2_load_driver_common(disp, swrast_driver_extensions);
854 }
855
856 static unsigned
857 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
858 {
859 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
860 unsigned int value = 0;
861
862 if (!rendererQuery ||
863 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
864 return 0;
865
866 return value;
867 }
868
869 static const char *
870 dri2_query_driver_name(_EGLDisplay *disp)
871 {
872 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
873 return dri2_dpy->driver_name;
874 }
875
876 static char *
877 dri2_query_driver_config(_EGLDisplay *disp)
878 {
879 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
880 const __DRIconfigOptionsExtension *ext = dri2_dpy->configOptions;
881
882 if (ext->base.version >= 2)
883 return ext->getXml(dri2_dpy->driver_name);
884
885 return strdup(ext->xml);
886 }
887
888
889 void
890 dri2_setup_screen(_EGLDisplay *disp)
891 {
892 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
893 unsigned int api_mask;
894
895 /*
896 * EGL 1.5 specification defines the default value to 1. Moreover,
897 * eglSwapInterval() is required to clamp requested value to the supported
898 * range. Since the default value is implicitly assumed to be supported,
899 * use it as both minimum and maximum for the platforms that do not allow
900 * changing the interval. Platforms, which allow it (e.g. x11, wayland)
901 * override these values already.
902 */
903 dri2_dpy->min_swap_interval = 1;
904 dri2_dpy->max_swap_interval = 1;
905 dri2_dpy->default_swap_interval = 1;
906
907 if (dri2_dpy->image_driver) {
908 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
909 } else if (dri2_dpy->dri2) {
910 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
911 } else {
912 assert(dri2_dpy->swrast);
913 api_mask = 1 << __DRI_API_OPENGL |
914 1 << __DRI_API_GLES |
915 1 << __DRI_API_GLES2 |
916 1 << __DRI_API_GLES3;
917 }
918
919 disp->ClientAPIs = 0;
920 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
921 disp->ClientAPIs |= EGL_OPENGL_BIT;
922 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
923 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
924 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
925 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
926 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
927 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
928
929 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
930 disp->Extensions.KHR_no_config_context = EGL_TRUE;
931 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
932
933 if (dri2_dpy->configOptions) {
934 disp->Extensions.MESA_query_driver = EGL_TRUE;
935 }
936
937 /* Report back to EGL the bitmask of priorities supported */
938 disp->Extensions.IMG_context_priority =
939 dri2_renderer_query_integer(dri2_dpy,
940 __DRI2_RENDERER_HAS_CONTEXT_PRIORITY);
941
942 disp->Extensions.EXT_pixel_format_float = EGL_TRUE;
943
944 if (dri2_renderer_query_integer(dri2_dpy,
945 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
946 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
947
948 if (dri2_dpy->image_driver ||
949 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
950 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
951 disp->Extensions.KHR_create_context = EGL_TRUE;
952
953 if (dri2_dpy->robustness)
954 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
955 }
956
957 if (dri2_dpy->no_error)
958 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
959
960 if (dri2_dpy->fence) {
961 disp->Extensions.KHR_fence_sync = EGL_TRUE;
962 disp->Extensions.KHR_wait_sync = EGL_TRUE;
963 if (dri2_dpy->fence->get_fence_from_cl_event)
964 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
965 if (dri2_dpy->fence->base.version >= 2 &&
966 dri2_dpy->fence->get_capabilities) {
967 unsigned capabilities =
968 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
969 disp->Extensions.ANDROID_native_fence_sync =
970 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
971 }
972 }
973
974 if (dri2_dpy->blob)
975 disp->Extensions.ANDROID_blob_cache = EGL_TRUE;
976
977 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
978
979 if (dri2_dpy->image) {
980 if (dri2_dpy->image->base.version >= 10 &&
981 dri2_dpy->image->getCapabilities != NULL) {
982 int capabilities;
983
984 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
985 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
986
987 if (dri2_dpy->image->base.version >= 11)
988 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
989 } else {
990 disp->Extensions.MESA_drm_image = EGL_TRUE;
991 if (dri2_dpy->image->base.version >= 11)
992 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
993 }
994
995 disp->Extensions.KHR_image_base = EGL_TRUE;
996 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
997 if (dri2_dpy->image->base.version >= 5 &&
998 dri2_dpy->image->createImageFromTexture) {
999 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
1000 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
1001
1002 if (dri2_renderer_query_integer(dri2_dpy,
1003 __DRI2_RENDERER_HAS_TEXTURE_3D))
1004 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
1005 }
1006 #ifdef HAVE_LIBDRM
1007 if (dri2_dpy->image->base.version >= 8 &&
1008 dri2_dpy->image->createImageFromDmaBufs) {
1009 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
1010 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
1011 }
1012 #endif
1013 }
1014
1015 if (dri2_dpy->flush_control)
1016 disp->Extensions.KHR_context_flush_control = EGL_TRUE;
1017
1018 if (dri2_dpy->buffer_damage && dri2_dpy->buffer_damage->set_damage_region)
1019 disp->Extensions.KHR_partial_update = EGL_TRUE;
1020 }
1021
1022 void
1023 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
1024 {
1025 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1026 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
1027
1028 /* Allow driconf to override applications.*/
1029 if (dri2_dpy->config)
1030 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
1031 "vblank_mode", &vblank_mode);
1032 switch (vblank_mode) {
1033 case DRI_CONF_VBLANK_NEVER:
1034 dri2_dpy->min_swap_interval = 0;
1035 dri2_dpy->max_swap_interval = 0;
1036 dri2_dpy->default_swap_interval = 0;
1037 break;
1038 case DRI_CONF_VBLANK_ALWAYS_SYNC:
1039 dri2_dpy->min_swap_interval = 1;
1040 dri2_dpy->max_swap_interval = max_swap_interval;
1041 dri2_dpy->default_swap_interval = 1;
1042 break;
1043 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
1044 dri2_dpy->min_swap_interval = 0;
1045 dri2_dpy->max_swap_interval = max_swap_interval;
1046 dri2_dpy->default_swap_interval = 0;
1047 break;
1048 default:
1049 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
1050 dri2_dpy->min_swap_interval = 0;
1051 dri2_dpy->max_swap_interval = max_swap_interval;
1052 dri2_dpy->default_swap_interval = 1;
1053 break;
1054 }
1055 }
1056
1057 /* All platforms but DRM call this function to create the screen and populate
1058 * the driver_configs. DRM inherits that information from its display - GBM.
1059 */
1060 EGLBoolean
1061 dri2_create_screen(_EGLDisplay *disp)
1062 {
1063 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1064
1065 if (dri2_dpy->image_driver) {
1066 dri2_dpy->dri_screen =
1067 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
1068 dri2_dpy->loader_extensions,
1069 dri2_dpy->driver_extensions,
1070 &dri2_dpy->driver_configs,
1071 disp);
1072 } else if (dri2_dpy->dri2) {
1073 if (dri2_dpy->dri2->base.version >= 4) {
1074 dri2_dpy->dri_screen =
1075 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
1076 dri2_dpy->loader_extensions,
1077 dri2_dpy->driver_extensions,
1078 &dri2_dpy->driver_configs, disp);
1079 } else {
1080 dri2_dpy->dri_screen =
1081 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
1082 dri2_dpy->loader_extensions,
1083 &dri2_dpy->driver_configs, disp);
1084 }
1085 } else {
1086 assert(dri2_dpy->swrast);
1087 if (dri2_dpy->swrast->base.version >= 4) {
1088 dri2_dpy->dri_screen =
1089 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
1090 dri2_dpy->driver_extensions,
1091 &dri2_dpy->driver_configs, disp);
1092 } else {
1093 dri2_dpy->dri_screen =
1094 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
1095 &dri2_dpy->driver_configs, disp);
1096 }
1097 }
1098
1099 if (dri2_dpy->dri_screen == NULL) {
1100 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
1101 return EGL_FALSE;
1102 }
1103
1104 dri2_dpy->own_dri_screen = true;
1105 return EGL_TRUE;
1106 }
1107
1108 EGLBoolean
1109 dri2_setup_extensions(_EGLDisplay *disp)
1110 {
1111 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1112 const struct dri2_extension_match *mandatory_core_extensions;
1113 const __DRIextension **extensions;
1114
1115 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
1116
1117 if (dri2_dpy->image_driver || dri2_dpy->dri2)
1118 mandatory_core_extensions = dri2_core_extensions;
1119 else
1120 mandatory_core_extensions = swrast_core_extensions;
1121
1122 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
1123 return EGL_FALSE;
1124
1125 #ifdef HAVE_DRI3_MODIFIERS
1126 dri2_dpy->multibuffers_available =
1127 (dri2_dpy->dri3_major_version > 1 || (dri2_dpy->dri3_major_version == 1 &&
1128 dri2_dpy->dri3_minor_version >= 2)) &&
1129 (dri2_dpy->present_major_version > 1 || (dri2_dpy->present_major_version == 1 &&
1130 dri2_dpy->present_minor_version >= 2)) &&
1131 (dri2_dpy->image && dri2_dpy->image->base.version >= 15);
1132 #endif
1133
1134 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
1135 return EGL_TRUE;
1136 }
1137
1138 /**
1139 * Called via eglInitialize(), drv->Initialize().
1140 *
1141 * This must be guaranteed to be called exactly once, even if eglInitialize is
1142 * called many times (without a eglTerminate in between).
1143 */
1144 static EGLBoolean
1145 dri2_initialize(_EGLDisplay *disp)
1146 {
1147 EGLBoolean ret = EGL_FALSE;
1148 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1149
1150 /* In the case where the application calls eglMakeCurrent(context1),
1151 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
1152 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
1153 * initialized, as we need it to be able to free context1 correctly.
1154 *
1155 * It would probably be safest to forcibly release the display with
1156 * dri2_display_release, to make sure the display is reinitialized correctly.
1157 * However, the EGL spec states that we need to keep a reference to the
1158 * current context (so we cannot call dri2_make_current(NULL)), and therefore
1159 * we would leak context1 as we would be missing the old display connection
1160 * to free it up correctly.
1161 */
1162 if (dri2_dpy) {
1163 dri2_dpy->ref_count++;
1164 return EGL_TRUE;
1165 }
1166
1167 loader_set_logger(_eglLog);
1168
1169 switch (disp->Platform) {
1170 case _EGL_PLATFORM_SURFACELESS:
1171 ret = dri2_initialize_surfaceless(disp);
1172 break;
1173 case _EGL_PLATFORM_DEVICE:
1174 ret = dri2_initialize_device(disp);
1175 break;
1176 case _EGL_PLATFORM_X11:
1177 ret = dri2_initialize_x11(disp);
1178 break;
1179 case _EGL_PLATFORM_DRM:
1180 ret = dri2_initialize_drm(disp);
1181 break;
1182 case _EGL_PLATFORM_WAYLAND:
1183 ret = dri2_initialize_wayland(disp);
1184 break;
1185 case _EGL_PLATFORM_ANDROID:
1186 ret = dri2_initialize_android(disp);
1187 break;
1188 default:
1189 unreachable("Callers ensure we cannot get here.");
1190 return EGL_FALSE;
1191 }
1192
1193 if (!ret)
1194 return EGL_FALSE;
1195
1196 dri2_dpy = dri2_egl_display(disp);
1197 dri2_dpy->ref_count++;
1198
1199 return EGL_TRUE;
1200 }
1201
1202 /**
1203 * Decrement display reference count, and free up display if necessary.
1204 */
1205 static void
1206 dri2_display_release(_EGLDisplay *disp)
1207 {
1208 struct dri2_egl_display *dri2_dpy;
1209
1210 if (!disp)
1211 return;
1212
1213 dri2_dpy = dri2_egl_display(disp);
1214
1215 assert(dri2_dpy->ref_count > 0);
1216 dri2_dpy->ref_count--;
1217
1218 if (dri2_dpy->ref_count > 0)
1219 return;
1220
1221 _eglCleanupDisplay(disp);
1222 dri2_display_destroy(disp);
1223 }
1224
1225 void
1226 dri2_display_destroy(_EGLDisplay *disp)
1227 {
1228 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1229
1230 if (dri2_dpy->own_dri_screen) {
1231 if (dri2_dpy->vtbl && dri2_dpy->vtbl->close_screen_notify)
1232 dri2_dpy->vtbl->close_screen_notify(disp);
1233 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1234 }
1235 if (dri2_dpy->fd >= 0)
1236 close(dri2_dpy->fd);
1237 if (dri2_dpy->driver)
1238 dlclose(dri2_dpy->driver);
1239 free(dri2_dpy->driver_name);
1240
1241 #ifdef HAVE_WAYLAND_PLATFORM
1242 free(dri2_dpy->device_name);
1243 #endif
1244
1245 switch (disp->Platform) {
1246 case _EGL_PLATFORM_X11:
1247 dri2_teardown_x11(dri2_dpy);
1248 break;
1249 case _EGL_PLATFORM_DRM:
1250 dri2_teardown_drm(dri2_dpy);
1251 break;
1252 case _EGL_PLATFORM_WAYLAND:
1253 dri2_teardown_wayland(dri2_dpy);
1254 break;
1255 default:
1256 /* TODO: add teardown for other platforms */
1257 break;
1258 }
1259
1260 /* The drm platform does not create the screen/driver_configs but reuses
1261 * the ones from the gbm device. As such the gbm itself is responsible
1262 * for the cleanup.
1263 */
1264 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1265 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1266 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1267 free(dri2_dpy->driver_configs);
1268 }
1269 free(dri2_dpy);
1270 disp->DriverData = NULL;
1271 }
1272
1273 __DRIbuffer *
1274 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
1275 unsigned int att, unsigned int format)
1276 {
1277 struct dri2_egl_display *dri2_dpy =
1278 dri2_egl_display(dri2_surf->base.Resource.Display);
1279
1280 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
1281 return NULL;
1282
1283 if (!dri2_surf->local_buffers[att]) {
1284 dri2_surf->local_buffers[att] =
1285 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
1286 dri2_surf->base.Width, dri2_surf->base.Height);
1287 }
1288
1289 return dri2_surf->local_buffers[att];
1290 }
1291
1292 void
1293 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
1294 {
1295 struct dri2_egl_display *dri2_dpy =
1296 dri2_egl_display(dri2_surf->base.Resource.Display);
1297
1298 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1299 if (dri2_surf->local_buffers[i]) {
1300 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1301 dri2_surf->local_buffers[i]);
1302 dri2_surf->local_buffers[i] = NULL;
1303 }
1304 }
1305 }
1306
1307 /**
1308 * Called via eglTerminate(), drv->Terminate().
1309 *
1310 * This must be guaranteed to be called exactly once, even if eglTerminate is
1311 * called many times (without a eglInitialize in between).
1312 */
1313 static EGLBoolean
1314 dri2_terminate(_EGLDisplay *disp)
1315 {
1316 /* Release all non-current Context/Surfaces. */
1317 _eglReleaseDisplayResources(disp);
1318
1319 dri2_display_release(disp);
1320
1321 return EGL_TRUE;
1322 }
1323
1324 /**
1325 * Set the error code after a call to
1326 * dri2_egl_display::dri2::createContextAttribs.
1327 */
1328 static void
1329 dri2_create_context_attribs_error(int dri_error)
1330 {
1331 EGLint egl_error;
1332
1333 switch (dri_error) {
1334 case __DRI_CTX_ERROR_SUCCESS:
1335 return;
1336
1337 case __DRI_CTX_ERROR_NO_MEMORY:
1338 egl_error = EGL_BAD_ALLOC;
1339 break;
1340
1341 /* From the EGL_KHR_create_context spec, section "Errors":
1342 *
1343 * * If <config> does not support a client API context compatible
1344 * with the requested API major and minor version, [...] context flags,
1345 * and context reset notification behavior (for client API types where
1346 * these attributes are supported), then an EGL_BAD_MATCH error is
1347 * generated.
1348 *
1349 * * If an OpenGL ES context is requested and the values for
1350 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1351 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1352 * is not defined, than an EGL_BAD_MATCH error is generated.
1353 *
1354 * * If an OpenGL context is requested, the requested version is
1355 * greater than 3.2, and the value for attribute
1356 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1357 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1358 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1359 * one of these bits set; or if the implementation does not support
1360 * the requested profile, then an EGL_BAD_MATCH error is generated.
1361 */
1362 case __DRI_CTX_ERROR_BAD_API:
1363 case __DRI_CTX_ERROR_BAD_VERSION:
1364 case __DRI_CTX_ERROR_BAD_FLAG:
1365 egl_error = EGL_BAD_MATCH;
1366 break;
1367
1368 /* From the EGL_KHR_create_context spec, section "Errors":
1369 *
1370 * * If an attribute name or attribute value in <attrib_list> is not
1371 * recognized (including unrecognized bits in bitmask attributes),
1372 * then an EGL_BAD_ATTRIBUTE error is generated."
1373 */
1374 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1375 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1376 egl_error = EGL_BAD_ATTRIBUTE;
1377 break;
1378
1379 default:
1380 assert(!"unknown dri_error code");
1381 egl_error = EGL_BAD_MATCH;
1382 break;
1383 }
1384
1385 _eglError(egl_error, "dri2_create_context");
1386 }
1387
1388 static bool
1389 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1390 struct dri2_egl_display *dri2_dpy,
1391 uint32_t *ctx_attribs,
1392 unsigned *num_attribs)
1393 {
1394 int pos = 0;
1395
1396 assert(*num_attribs >= NUM_ATTRIBS);
1397
1398 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1399 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1400 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1401 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1402
1403 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1404 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1405 * extension, don't even try to send it the robust-access flag.
1406 * It may explode. Instead, generate the required EGL error here.
1407 */
1408 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1409 && !dri2_dpy->robustness) {
1410 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1411 return false;
1412 }
1413
1414 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1415 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1416 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1417 }
1418
1419 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1420 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1421 * extension, don't even try to send it a reset strategy. It may
1422 * explode. Instead, generate the required EGL error here.
1423 */
1424 if (!dri2_dpy->robustness) {
1425 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1426 return false;
1427 }
1428
1429 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1430 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1431 }
1432
1433 if (dri2_ctx->base.ContextPriority != EGL_CONTEXT_PRIORITY_MEDIUM_IMG) {
1434 unsigned val;
1435
1436 switch (dri2_ctx->base.ContextPriority) {
1437 case EGL_CONTEXT_PRIORITY_HIGH_IMG:
1438 val = __DRI_CTX_PRIORITY_HIGH;
1439 break;
1440 case EGL_CONTEXT_PRIORITY_MEDIUM_IMG:
1441 val = __DRI_CTX_PRIORITY_MEDIUM;
1442 break;
1443 case EGL_CONTEXT_PRIORITY_LOW_IMG:
1444 val = __DRI_CTX_PRIORITY_LOW;
1445 break;
1446 default:
1447 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1448 return false;
1449 }
1450
1451 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_PRIORITY;
1452 ctx_attribs[pos++] = val;
1453 }
1454
1455 if (dri2_ctx->base.ReleaseBehavior == EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR) {
1456 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR;
1457 ctx_attribs[pos++] = __DRI_CTX_RELEASE_BEHAVIOR_NONE;
1458 }
1459
1460 *num_attribs = pos;
1461
1462 return true;
1463 }
1464
1465 /**
1466 * Called via eglCreateContext(), drv->CreateContext().
1467 */
1468 static _EGLContext *
1469 dri2_create_context(_EGLDisplay *disp, _EGLConfig *conf,
1470 _EGLContext *share_list, const EGLint *attrib_list)
1471 {
1472 struct dri2_egl_context *dri2_ctx;
1473 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1474 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1475 __DRIcontext *shared =
1476 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1477 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1478 const __DRIconfig *dri_config;
1479 int api;
1480 unsigned error;
1481 unsigned num_attribs = NUM_ATTRIBS;
1482 uint32_t ctx_attribs[NUM_ATTRIBS];
1483
1484 dri2_ctx = malloc(sizeof *dri2_ctx);
1485 if (!dri2_ctx) {
1486 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1487 return NULL;
1488 }
1489
1490 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1491 goto cleanup;
1492
1493 /* The EGL_EXT_create_context_robustness spec says:
1494 *
1495 * "Add to the eglCreateContext context creation errors: [...]
1496 *
1497 * * If the reset notification behavior of <share_context> and the
1498 * newly created context are different then an EGL_BAD_MATCH error is
1499 * generated."
1500 */
1501 if (share_list && share_list->ResetNotificationStrategy !=
1502 dri2_ctx->base.ResetNotificationStrategy) {
1503 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1504 goto cleanup;
1505 }
1506
1507 /* The EGL_KHR_create_context_no_error spec says:
1508 *
1509 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1510 * used to create <share_context> does not match the value of
1511 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1512 */
1513 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1514 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1515 goto cleanup;
1516 }
1517
1518 switch (dri2_ctx->base.ClientAPI) {
1519 case EGL_OPENGL_ES_API:
1520 switch (dri2_ctx->base.ClientMajorVersion) {
1521 case 1:
1522 api = __DRI_API_GLES;
1523 break;
1524 case 2:
1525 api = __DRI_API_GLES2;
1526 break;
1527 case 3:
1528 api = __DRI_API_GLES3;
1529 break;
1530 default:
1531 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1532 free(dri2_ctx);
1533 return NULL;
1534 }
1535 break;
1536 case EGL_OPENGL_API:
1537 if ((dri2_ctx->base.ClientMajorVersion >= 4
1538 || (dri2_ctx->base.ClientMajorVersion == 3
1539 && dri2_ctx->base.ClientMinorVersion >= 2))
1540 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1541 api = __DRI_API_OPENGL_CORE;
1542 else if (dri2_ctx->base.ClientMajorVersion == 3 &&
1543 dri2_ctx->base.ClientMinorVersion == 1)
1544 api = __DRI_API_OPENGL_CORE;
1545 else
1546 api = __DRI_API_OPENGL;
1547 break;
1548 default:
1549 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1550 free(dri2_ctx);
1551 return NULL;
1552 }
1553
1554 if (conf != NULL) {
1555 /* The config chosen here isn't necessarily
1556 * used for surfaces later.
1557 * A pixmap surface will use the single config.
1558 * This opportunity depends on disabling the
1559 * doubleBufferMode check in
1560 * src/mesa/main/context.c:check_compatible()
1561 */
1562 if (dri2_config->dri_config[1][0])
1563 dri_config = dri2_config->dri_config[1][0];
1564 else
1565 dri_config = dri2_config->dri_config[0][0];
1566 }
1567 else
1568 dri_config = NULL;
1569
1570 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1571 &num_attribs))
1572 goto cleanup;
1573
1574 if (dri2_dpy->image_driver) {
1575 dri2_ctx->dri_context =
1576 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1577 api,
1578 dri_config,
1579 shared,
1580 num_attribs / 2,
1581 ctx_attribs,
1582 & error,
1583 dri2_ctx);
1584 dri2_create_context_attribs_error(error);
1585 } else if (dri2_dpy->dri2) {
1586 if (dri2_dpy->dri2->base.version >= 3) {
1587 dri2_ctx->dri_context =
1588 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1589 api,
1590 dri_config,
1591 shared,
1592 num_attribs / 2,
1593 ctx_attribs,
1594 & error,
1595 dri2_ctx);
1596 dri2_create_context_attribs_error(error);
1597 } else {
1598 dri2_ctx->dri_context =
1599 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1600 api,
1601 dri_config,
1602 shared,
1603 dri2_ctx);
1604 }
1605 } else {
1606 assert(dri2_dpy->swrast);
1607 if (dri2_dpy->swrast->base.version >= 3) {
1608 dri2_ctx->dri_context =
1609 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1610 api,
1611 dri_config,
1612 shared,
1613 num_attribs / 2,
1614 ctx_attribs,
1615 & error,
1616 dri2_ctx);
1617 dri2_create_context_attribs_error(error);
1618 } else {
1619 dri2_ctx->dri_context =
1620 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1621 api,
1622 dri_config,
1623 shared,
1624 dri2_ctx);
1625 }
1626 }
1627
1628 if (!dri2_ctx->dri_context)
1629 goto cleanup;
1630
1631 return &dri2_ctx->base;
1632
1633 cleanup:
1634 free(dri2_ctx);
1635 return NULL;
1636 }
1637
1638 /**
1639 * Called via eglDestroyContext(), drv->DestroyContext().
1640 */
1641 static EGLBoolean
1642 dri2_destroy_context(_EGLDisplay *disp, _EGLContext *ctx)
1643 {
1644 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1645 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1646
1647 if (_eglPutContext(ctx)) {
1648 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1649 free(dri2_ctx);
1650 }
1651
1652 return EGL_TRUE;
1653 }
1654
1655 EGLBoolean
1656 dri2_init_surface(_EGLSurface *surf, _EGLDisplay *disp, EGLint type,
1657 _EGLConfig *conf, const EGLint *attrib_list,
1658 EGLBoolean enable_out_fence, void *native_surface)
1659 {
1660 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1661 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1662
1663 dri2_surf->out_fence_fd = -1;
1664 dri2_surf->enable_out_fence = false;
1665 if (dri2_dpy->fence && dri2_dpy->fence->base.version >= 2 &&
1666 dri2_dpy->fence->get_capabilities &&
1667 (dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen) &
1668 __DRI_FENCE_CAP_NATIVE_FD)) {
1669 dri2_surf->enable_out_fence = enable_out_fence;
1670 }
1671
1672 return _eglInitSurface(surf, disp, type, conf, attrib_list, native_surface);
1673 }
1674
1675 static void
1676 dri2_surface_set_out_fence_fd( _EGLSurface *surf, int fence_fd)
1677 {
1678 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1679
1680 if (dri2_surf->out_fence_fd >= 0)
1681 close(dri2_surf->out_fence_fd);
1682
1683 dri2_surf->out_fence_fd = fence_fd;
1684 }
1685
1686 void
1687 dri2_fini_surface(_EGLSurface *surf)
1688 {
1689 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1690
1691 dri2_surface_set_out_fence_fd(surf, -1);
1692 dri2_surf->enable_out_fence = false;
1693 }
1694
1695 static EGLBoolean
1696 dri2_destroy_surface(_EGLDisplay *disp, _EGLSurface *surf)
1697 {
1698 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1699
1700 if (!_eglPutSurface(surf))
1701 return EGL_TRUE;
1702
1703 return dri2_dpy->vtbl->destroy_surface(disp, surf);
1704 }
1705
1706 static void
1707 dri2_surf_update_fence_fd(_EGLContext *ctx,
1708 _EGLDisplay *disp, _EGLSurface *surf)
1709 {
1710 __DRIcontext *dri_ctx = dri2_egl_context(ctx)->dri_context;
1711 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1712 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1713 int fence_fd = -1;
1714 void *fence;
1715
1716 if (!dri2_surf->enable_out_fence)
1717 return;
1718
1719 fence = dri2_dpy->fence->create_fence_fd(dri_ctx, -1);
1720 if (fence) {
1721 fence_fd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
1722 fence);
1723 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, fence);
1724 }
1725 dri2_surface_set_out_fence_fd(surf, fence_fd);
1726 }
1727
1728 EGLBoolean
1729 dri2_create_drawable(struct dri2_egl_display *dri2_dpy,
1730 const __DRIconfig *config,
1731 struct dri2_egl_surface *dri2_surf,
1732 void *loaderPrivate)
1733 {
1734 __DRIcreateNewDrawableFunc createNewDrawable;
1735
1736 if (dri2_dpy->image_driver)
1737 createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
1738 else if (dri2_dpy->dri2)
1739 createNewDrawable = dri2_dpy->dri2->createNewDrawable;
1740 else if (dri2_dpy->swrast)
1741 createNewDrawable = dri2_dpy->swrast->createNewDrawable;
1742 else
1743 return _eglError(EGL_BAD_ALLOC, "no createNewDrawable");
1744
1745 dri2_surf->dri_drawable = createNewDrawable(dri2_dpy->dri_screen,
1746 config, loaderPrivate);
1747 if (dri2_surf->dri_drawable == NULL)
1748 return _eglError(EGL_BAD_ALLOC, "createNewDrawable");
1749
1750 return EGL_TRUE;
1751 }
1752
1753 /**
1754 * Called via eglMakeCurrent(), drv->MakeCurrent().
1755 */
1756 static EGLBoolean
1757 dri2_make_current(_EGLDisplay *disp, _EGLSurface *dsurf,
1758 _EGLSurface *rsurf, _EGLContext *ctx)
1759 {
1760 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1761 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1762 _EGLDisplay *old_disp = NULL;
1763 struct dri2_egl_display *old_dri2_dpy = NULL;
1764 _EGLContext *old_ctx;
1765 _EGLSurface *old_dsurf, *old_rsurf;
1766 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1767 __DRIdrawable *ddraw, *rdraw;
1768 __DRIcontext *cctx;
1769 EGLint egl_error = EGL_SUCCESS;
1770
1771 if (!dri2_dpy)
1772 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1773
1774 /* make new bindings, set the EGL error otherwise */
1775 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1776 return EGL_FALSE;
1777
1778 if (old_ctx) {
1779 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1780 old_disp = old_ctx->Resource.Display;
1781 old_dri2_dpy = dri2_egl_display(old_disp);
1782
1783 /* flush before context switch */
1784 dri2_gl_flush();
1785
1786 if (old_dsurf)
1787 dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
1788
1789 /* Disable shared buffer mode */
1790 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1791 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1792 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, false);
1793 }
1794
1795 dri2_dpy->core->unbindContext(old_cctx);
1796 }
1797
1798 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1799 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1800 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1801
1802 if (cctx || ddraw || rdraw) {
1803 if (!dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1804 _EGLContext *tmp_ctx;
1805
1806 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1807 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1808 * as EGL_SUCCESS.
1809 */
1810 egl_error = EGL_BAD_MATCH;
1811
1812 /* undo the previous _eglBindContext */
1813 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1814 assert(&dri2_ctx->base == ctx &&
1815 tmp_dsurf == dsurf &&
1816 tmp_rsurf == rsurf);
1817
1818 _eglPutSurface(dsurf);
1819 _eglPutSurface(rsurf);
1820 _eglPutContext(ctx);
1821
1822 _eglPutSurface(old_dsurf);
1823 _eglPutSurface(old_rsurf);
1824 _eglPutContext(old_ctx);
1825
1826 ddraw = (old_dsurf) ? dri2_dpy->vtbl->get_dri_drawable(old_dsurf) : NULL;
1827 rdraw = (old_rsurf) ? dri2_dpy->vtbl->get_dri_drawable(old_rsurf) : NULL;
1828 cctx = (old_ctx) ? dri2_egl_context(old_ctx)->dri_context : NULL;
1829
1830 /* undo the previous dri2_dpy->core->unbindContext */
1831 if (dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1832 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1833 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1834 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
1835 }
1836
1837 return _eglError(egl_error, "eglMakeCurrent");
1838 }
1839
1840 /* We cannot restore the same state as it was before calling
1841 * eglMakeCurrent() and the spec isn't clear about what to do. We
1842 * can prevent EGL from calling into the DRI driver with no DRI
1843 * context bound.
1844 */
1845 dsurf = rsurf = NULL;
1846 ctx = NULL;
1847
1848 _eglBindContext(ctx, dsurf, rsurf, &tmp_ctx, &tmp_dsurf, &tmp_rsurf);
1849 assert(tmp_ctx == old_ctx && tmp_dsurf == old_dsurf &&
1850 tmp_rsurf == old_rsurf);
1851
1852 _eglLog(_EGL_WARNING, "DRI2: failed to rebind the previous context");
1853 } else {
1854 /* dri2_dpy->core->bindContext succeeded, so take a reference on the
1855 * dri2_dpy. This prevents dri2_dpy from being reinitialized when a
1856 * EGLDisplay is terminated and then initialized again while a
1857 * context is still bound. See dri2_intitialize() for a more in depth
1858 * explanation. */
1859 dri2_dpy->ref_count++;
1860 }
1861 }
1862
1863 dri2_destroy_surface(disp, old_dsurf);
1864 dri2_destroy_surface(disp, old_rsurf);
1865
1866 if (old_ctx) {
1867 dri2_destroy_context(disp, old_ctx);
1868 dri2_display_release(old_disp);
1869 }
1870
1871 if (egl_error != EGL_SUCCESS)
1872 return _eglError(egl_error, "eglMakeCurrent");
1873
1874 if (dsurf && _eglSurfaceHasMutableRenderBuffer(dsurf) &&
1875 dri2_dpy->vtbl->set_shared_buffer_mode) {
1876 /* Always update the shared buffer mode. This is obviously needed when
1877 * the active EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. When
1878 * EGL_RENDER_BUFFER is EGL_BACK_BUFFER, the update protects us in the
1879 * case where external non-EGL API may have changed window's shared
1880 * buffer mode since we last saw it.
1881 */
1882 bool mode = (dsurf->ActiveRenderBuffer == EGL_SINGLE_BUFFER);
1883 dri2_dpy->vtbl->set_shared_buffer_mode(disp, dsurf, mode);
1884 }
1885
1886 return EGL_TRUE;
1887 }
1888
1889 __DRIdrawable *
1890 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1891 {
1892 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1893
1894 return dri2_surf->dri_drawable;
1895 }
1896
1897 /*
1898 * Called from eglGetProcAddress() via drv->GetProcAddress().
1899 */
1900 static _EGLProc
1901 dri2_get_proc_address(const _EGLDriver *drv, const char *procname)
1902 {
1903 return _glapi_get_proc_address(procname);
1904 }
1905
1906 static _EGLSurface*
1907 dri2_create_window_surface(_EGLDisplay *disp, _EGLConfig *conf,
1908 void *native_window, const EGLint *attrib_list)
1909 {
1910 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1911 return dri2_dpy->vtbl->create_window_surface(disp, conf, native_window,
1912 attrib_list);
1913 }
1914
1915 static _EGLSurface*
1916 dri2_create_pixmap_surface(_EGLDisplay *disp, _EGLConfig *conf,
1917 void *native_pixmap, const EGLint *attrib_list)
1918 {
1919 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1920 if (!dri2_dpy->vtbl->create_pixmap_surface)
1921 return NULL;
1922 return dri2_dpy->vtbl->create_pixmap_surface(disp, conf, native_pixmap,
1923 attrib_list);
1924 }
1925
1926 static _EGLSurface*
1927 dri2_create_pbuffer_surface(_EGLDisplay *disp, _EGLConfig *conf,
1928 const EGLint *attrib_list)
1929 {
1930 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1931 if (!dri2_dpy->vtbl->create_pbuffer_surface)
1932 return NULL;
1933 return dri2_dpy->vtbl->create_pbuffer_surface(disp, conf, attrib_list);
1934 }
1935
1936 static EGLBoolean
1937 dri2_swap_interval(_EGLDisplay *disp, _EGLSurface *surf, EGLint interval)
1938 {
1939 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1940 if (!dri2_dpy->vtbl->swap_interval)
1941 return EGL_TRUE;
1942 return dri2_dpy->vtbl->swap_interval(disp, surf, interval);
1943 }
1944
1945 /**
1946 * Asks the client API to flush any rendering to the drawable so that we can
1947 * do our swapbuffers.
1948 */
1949 void
1950 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1951 {
1952 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1953 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1954
1955 if (dri2_dpy->flush) {
1956 if (dri2_dpy->flush->base.version >= 4) {
1957 /* We know there's a current context because:
1958 *
1959 * "If surface is not bound to the calling thread’s current
1960 * context, an EGL_BAD_SURFACE error is generated."
1961 */
1962 _EGLContext *ctx = _eglGetCurrentContext();
1963 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1964
1965 /* From the EGL 1.4 spec (page 52):
1966 *
1967 * "The contents of ancillary buffers are always undefined
1968 * after calling eglSwapBuffers."
1969 */
1970 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1971 dri_drawable,
1972 __DRI2_FLUSH_DRAWABLE |
1973 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1974 __DRI2_THROTTLE_SWAPBUFFER);
1975 } else {
1976 dri2_dpy->flush->flush(dri_drawable);
1977 }
1978 }
1979 }
1980
1981 static EGLBoolean
1982 dri2_swap_buffers(_EGLDisplay *disp, _EGLSurface *surf)
1983 {
1984 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1985 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1986 _EGLContext *ctx = _eglGetCurrentContext();
1987 EGLBoolean ret;
1988
1989 if (ctx && surf)
1990 dri2_surf_update_fence_fd(ctx, disp, surf);
1991 ret = dri2_dpy->vtbl->swap_buffers(disp, surf);
1992
1993 /* SwapBuffers marks the end of the frame; reset the damage region for
1994 * use again next time.
1995 */
1996 if (ret && dri2_dpy->buffer_damage &&
1997 dri2_dpy->buffer_damage->set_damage_region)
1998 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
1999
2000 return ret;
2001 }
2002
2003 static EGLBoolean
2004 dri2_swap_buffers_with_damage(_EGLDisplay *disp, _EGLSurface *surf,
2005 const EGLint *rects, EGLint n_rects)
2006 {
2007 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2008 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2009 _EGLContext *ctx = _eglGetCurrentContext();
2010 EGLBoolean ret;
2011
2012 if (ctx && surf)
2013 dri2_surf_update_fence_fd(ctx, disp, surf);
2014 if (dri2_dpy->vtbl->swap_buffers_with_damage)
2015 ret = dri2_dpy->vtbl->swap_buffers_with_damage(disp, surf,
2016 rects, n_rects);
2017 else
2018 ret = dri2_dpy->vtbl->swap_buffers(disp, surf);
2019
2020 /* SwapBuffers marks the end of the frame; reset the damage region for
2021 * use again next time.
2022 */
2023 if (ret && dri2_dpy->buffer_damage &&
2024 dri2_dpy->buffer_damage->set_damage_region)
2025 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2026
2027 return ret;
2028 }
2029
2030 static EGLBoolean
2031 dri2_swap_buffers_region(_EGLDisplay *disp, _EGLSurface *surf,
2032 EGLint numRects, const EGLint *rects)
2033 {
2034 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2035 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2036 EGLBoolean ret;
2037
2038 if (!dri2_dpy->vtbl->swap_buffers_region)
2039 return EGL_FALSE;
2040 ret = dri2_dpy->vtbl->swap_buffers_region(disp, surf, numRects, rects);
2041
2042 /* SwapBuffers marks the end of the frame; reset the damage region for
2043 * use again next time.
2044 */
2045 if (ret && dri2_dpy->buffer_damage &&
2046 dri2_dpy->buffer_damage->set_damage_region)
2047 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2048
2049 return ret;
2050 }
2051
2052 static EGLBoolean
2053 dri2_set_damage_region(_EGLDisplay *disp, _EGLSurface *surf,
2054 EGLint *rects, EGLint n_rects)
2055 {
2056 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2057 __DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2058
2059 if (!dri2_dpy->buffer_damage || !dri2_dpy->buffer_damage->set_damage_region)
2060 return EGL_FALSE;
2061
2062 dri2_dpy->buffer_damage->set_damage_region(drawable, n_rects, rects);
2063 return EGL_TRUE;
2064 }
2065
2066 static EGLBoolean
2067 dri2_post_sub_buffer(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2068 EGLint x, EGLint y, EGLint width, EGLint height)
2069 {
2070 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2071 if (!dri2_dpy->vtbl->post_sub_buffer)
2072 return EGL_FALSE;
2073 return dri2_dpy->vtbl->post_sub_buffer(drv, disp, surf, x, y, width, height);
2074 }
2075
2076 static EGLBoolean
2077 dri2_copy_buffers(_EGLDisplay *disp, _EGLSurface *surf, void *native_pixmap_target)
2078 {
2079 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2080 if (!dri2_dpy->vtbl->copy_buffers)
2081 return _eglError(EGL_BAD_NATIVE_PIXMAP, "no support for native pixmaps");
2082 return dri2_dpy->vtbl->copy_buffers(disp, surf, native_pixmap_target);
2083 }
2084
2085 static EGLint
2086 dri2_query_buffer_age(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
2087 {
2088 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2089 if (!dri2_dpy->vtbl->query_buffer_age)
2090 return 0;
2091 return dri2_dpy->vtbl->query_buffer_age(drv, disp, surf);
2092 }
2093
2094 static EGLBoolean
2095 dri2_wait_client(_EGLDisplay *disp, _EGLContext *ctx)
2096 {
2097 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2098 _EGLSurface *surf = ctx->DrawSurface;
2099 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2100
2101 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
2102 * we need to copy fake to real here.*/
2103
2104 if (dri2_dpy->flush != NULL)
2105 dri2_dpy->flush->flush(dri_drawable);
2106
2107 return EGL_TRUE;
2108 }
2109
2110 static EGLBoolean
2111 dri2_wait_native(const _EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
2112 {
2113 (void) drv;
2114 (void) disp;
2115
2116 if (engine != EGL_CORE_NATIVE_ENGINE)
2117 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
2118 /* glXWaitX(); */
2119
2120 return EGL_TRUE;
2121 }
2122
2123 static EGLBoolean
2124 dri2_bind_tex_image(_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2125 {
2126 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2127 struct dri2_egl_context *dri2_ctx;
2128 _EGLContext *ctx;
2129 GLint format, target;
2130 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2131
2132 ctx = _eglGetCurrentContext();
2133 dri2_ctx = dri2_egl_context(ctx);
2134
2135 if (!_eglBindTexImage(disp, surf, buffer))
2136 return EGL_FALSE;
2137
2138 switch (surf->TextureFormat) {
2139 case EGL_TEXTURE_RGB:
2140 format = __DRI_TEXTURE_FORMAT_RGB;
2141 break;
2142 case EGL_TEXTURE_RGBA:
2143 format = __DRI_TEXTURE_FORMAT_RGBA;
2144 break;
2145 default:
2146 assert(!"Unexpected texture format in dri2_bind_tex_image()");
2147 format = __DRI_TEXTURE_FORMAT_RGBA;
2148 }
2149
2150 switch (surf->TextureTarget) {
2151 case EGL_TEXTURE_2D:
2152 target = GL_TEXTURE_2D;
2153 break;
2154 default:
2155 target = GL_TEXTURE_2D;
2156 assert(!"Unexpected texture target in dri2_bind_tex_image()");
2157 }
2158
2159 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
2160 target, format,
2161 dri_drawable);
2162
2163 return EGL_TRUE;
2164 }
2165
2166 static EGLBoolean
2167 dri2_release_tex_image(_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2168 {
2169 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2170 struct dri2_egl_context *dri2_ctx;
2171 _EGLContext *ctx;
2172 GLint target;
2173 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2174
2175 ctx = _eglGetCurrentContext();
2176 dri2_ctx = dri2_egl_context(ctx);
2177
2178 if (!_eglReleaseTexImage(disp, surf, buffer))
2179 return EGL_FALSE;
2180
2181 switch (surf->TextureTarget) {
2182 case EGL_TEXTURE_2D:
2183 target = GL_TEXTURE_2D;
2184 break;
2185 default:
2186 assert(!"missing texture target");
2187 }
2188
2189 if (dri2_dpy->tex_buffer->base.version >= 3 &&
2190 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
2191 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
2192 target, dri_drawable);
2193 }
2194
2195 return EGL_TRUE;
2196 }
2197
2198 static _EGLImage*
2199 dri2_create_image(const _EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx,
2200 EGLenum target, EGLClientBuffer buffer,
2201 const EGLint *attr_list)
2202 {
2203 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2204 return dri2_dpy->vtbl->create_image(drv, disp, ctx, target, buffer,
2205 attr_list);
2206 }
2207
2208 static _EGLImage *
2209 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
2210 {
2211 struct dri2_egl_image *dri2_img;
2212
2213 if (dri_image == NULL) {
2214 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2215 return NULL;
2216 }
2217
2218 dri2_img = malloc(sizeof *dri2_img);
2219 if (!dri2_img) {
2220 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2221 return NULL;
2222 }
2223
2224 _eglInitImage(&dri2_img->base, disp);
2225
2226 dri2_img->dri_image = dri_image;
2227
2228 return &dri2_img->base;
2229 }
2230
2231 /**
2232 * Translate a DRI Image extension error code into an EGL error code.
2233 */
2234 static EGLint
2235 egl_error_from_dri_image_error(int dri_error)
2236 {
2237 switch (dri_error) {
2238 case __DRI_IMAGE_ERROR_SUCCESS:
2239 return EGL_SUCCESS;
2240 case __DRI_IMAGE_ERROR_BAD_ALLOC:
2241 return EGL_BAD_ALLOC;
2242 case __DRI_IMAGE_ERROR_BAD_MATCH:
2243 return EGL_BAD_MATCH;
2244 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
2245 return EGL_BAD_PARAMETER;
2246 case __DRI_IMAGE_ERROR_BAD_ACCESS:
2247 return EGL_BAD_ACCESS;
2248 default:
2249 assert(!"unknown dri_error code");
2250 return EGL_BAD_ALLOC;
2251 }
2252 }
2253
2254 static _EGLImage *
2255 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
2256 EGLClientBuffer buffer,
2257 const EGLint *attr_list)
2258 {
2259 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2260 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2261 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
2262 __DRIimage *dri_image;
2263
2264 if (renderbuffer == 0) {
2265 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2266 return EGL_NO_IMAGE_KHR;
2267 }
2268
2269 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
2270 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2271 return EGL_NO_IMAGE_KHR;
2272 }
2273
2274 if (dri2_dpy->image->base.version >= 17 &&
2275 dri2_dpy->image->createImageFromRenderbuffer2) {
2276 unsigned error = ~0;
2277
2278 dri_image = dri2_dpy->image->createImageFromRenderbuffer2(
2279 dri2_ctx->dri_context, renderbuffer, NULL, &error);
2280
2281 assert(!!dri_image == (error == __DRI_IMAGE_ERROR_SUCCESS));
2282
2283 if (!dri_image) {
2284 _eglError(egl_error_from_dri_image_error(error), "dri2_create_image_khr");
2285 return EGL_NO_IMAGE_KHR;
2286 }
2287 } else {
2288 dri_image = dri2_dpy->image->createImageFromRenderbuffer(
2289 dri2_ctx->dri_context, renderbuffer, NULL);
2290 if (!dri_image) {
2291 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2292 return EGL_NO_IMAGE_KHR;
2293 }
2294 }
2295
2296 return dri2_create_image_from_dri(disp, dri_image);
2297 }
2298
2299 #ifdef HAVE_WAYLAND_PLATFORM
2300
2301 /* This structure describes how a wl_buffer maps to one or more
2302 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
2303 * offsets and strides of the planes in the buffer. This table maps a
2304 * wl_drm format code to a description of the planes in the buffer
2305 * that lets us create a __DRIimage for each of the planes. */
2306
2307 static const struct wl_drm_components_descriptor {
2308 uint32_t dri_components;
2309 EGLint components;
2310 int nplanes;
2311 } wl_drm_components[] = {
2312 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
2313 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
2314 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
2315 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
2316 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
2317 };
2318
2319 static _EGLImage *
2320 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2321 EGLClientBuffer _buffer,
2322 const EGLint *attr_list)
2323 {
2324 struct wl_drm_buffer *buffer;
2325 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2326 const struct wl_drm_components_descriptor *f;
2327 __DRIimage *dri_image;
2328 _EGLImageAttribs attrs;
2329 int32_t plane;
2330
2331 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
2332 (struct wl_resource *) _buffer);
2333 if (!buffer)
2334 return NULL;
2335
2336 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2337 return NULL;
2338
2339 plane = attrs.PlaneWL;
2340 f = buffer->driver_format;
2341 if (plane < 0 || plane >= f->nplanes) {
2342 _eglError(EGL_BAD_PARAMETER,
2343 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
2344 return NULL;
2345 }
2346
2347 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
2348 if (dri_image == NULL && plane == 0)
2349 dri_image = dri2_dpy->image->dupImage(buffer->driver_buffer, NULL);
2350 if (dri_image == NULL) {
2351 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
2352 return NULL;
2353 }
2354
2355 return dri2_create_image_from_dri(disp, dri_image);
2356 }
2357 #endif
2358
2359 static EGLBoolean
2360 dri2_get_sync_values_chromium(_EGLDisplay *disp, _EGLSurface *surf,
2361 EGLuint64KHR *ust, EGLuint64KHR *msc,
2362 EGLuint64KHR *sbc)
2363 {
2364 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2365 if (!dri2_dpy->vtbl->get_sync_values)
2366 return EGL_FALSE;
2367 return dri2_dpy->vtbl->get_sync_values(disp, surf, ust, msc, sbc);
2368 }
2369
2370 /**
2371 * Set the error code after a call to
2372 * dri2_egl_image::dri_image::createImageFromTexture.
2373 */
2374 static void
2375 dri2_create_image_khr_texture_error(int dri_error)
2376 {
2377 EGLint egl_error = egl_error_from_dri_image_error(dri_error);
2378
2379 if (egl_error != EGL_SUCCESS)
2380 _eglError(egl_error, "dri2_create_image_khr_texture");
2381 }
2382
2383 static _EGLImage *
2384 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
2385 EGLenum target,
2386 EGLClientBuffer buffer,
2387 const EGLint *attr_list)
2388 {
2389 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2390 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2391 struct dri2_egl_image *dri2_img;
2392 GLuint texture = (GLuint) (uintptr_t) buffer;
2393 _EGLImageAttribs attrs;
2394 GLuint depth;
2395 GLenum gl_target;
2396 unsigned error;
2397
2398 if (texture == 0) {
2399 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2400 return EGL_NO_IMAGE_KHR;
2401 }
2402
2403 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2404 return EGL_NO_IMAGE_KHR;
2405
2406 switch (target) {
2407 case EGL_GL_TEXTURE_2D_KHR:
2408 if (!disp->Extensions.KHR_gl_texture_2D_image) {
2409 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2410 return EGL_NO_IMAGE_KHR;
2411 }
2412 depth = 0;
2413 gl_target = GL_TEXTURE_2D;
2414 break;
2415 case EGL_GL_TEXTURE_3D_KHR:
2416 if (!disp->Extensions.KHR_gl_texture_3D_image) {
2417 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2418 return EGL_NO_IMAGE_KHR;
2419 }
2420
2421 depth = attrs.GLTextureZOffset;
2422 gl_target = GL_TEXTURE_3D;
2423 break;
2424 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2425 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2426 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2427 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2428 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2429 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2430 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
2431 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2432 return EGL_NO_IMAGE_KHR;
2433 }
2434
2435 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
2436 gl_target = GL_TEXTURE_CUBE_MAP;
2437 break;
2438 default:
2439 unreachable("Unexpected target in dri2_create_image_khr_texture()");
2440 return EGL_NO_IMAGE_KHR;
2441 }
2442
2443 dri2_img = malloc(sizeof *dri2_img);
2444 if (!dri2_img) {
2445 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2446 return EGL_NO_IMAGE_KHR;
2447 }
2448
2449 _eglInitImage(&dri2_img->base, disp);
2450
2451 dri2_img->dri_image =
2452 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
2453 gl_target,
2454 texture,
2455 depth,
2456 attrs.GLTextureLevel,
2457 &error,
2458 dri2_img);
2459 dri2_create_image_khr_texture_error(error);
2460
2461 if (!dri2_img->dri_image) {
2462 free(dri2_img);
2463 return EGL_NO_IMAGE_KHR;
2464 }
2465 return &dri2_img->base;
2466 }
2467
2468 static EGLBoolean
2469 dri2_query_surface(_EGLDisplay *disp, _EGLSurface *surf,
2470 EGLint attribute, EGLint *value)
2471 {
2472 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2473 if (!dri2_dpy->vtbl->query_surface)
2474 return _eglQuerySurface(disp, surf, attribute, value);
2475 return dri2_dpy->vtbl->query_surface(disp, surf, attribute, value);
2476 }
2477
2478 static struct wl_buffer*
2479 dri2_create_wayland_buffer_from_image(const _EGLDriver *drv, _EGLDisplay *disp,
2480 _EGLImage *img)
2481 {
2482 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2483 if (!dri2_dpy->vtbl->create_wayland_buffer_from_image)
2484 return NULL;
2485 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, disp, img);
2486 }
2487
2488 #ifdef HAVE_LIBDRM
2489 static _EGLImage *
2490 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2491 EGLClientBuffer buffer, const EGLint *attr_list)
2492 {
2493 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2494 EGLint format, name, pitch;
2495 _EGLImageAttribs attrs;
2496 __DRIimage *dri_image;
2497
2498 name = (EGLint) (uintptr_t) buffer;
2499
2500 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2501 return NULL;
2502
2503 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2504 attrs.DRMBufferStrideMESA <= 0) {
2505 _eglError(EGL_BAD_PARAMETER,
2506 "bad width, height or stride");
2507 return NULL;
2508 }
2509
2510 switch (attrs.DRMBufferFormatMESA) {
2511 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2512 format = __DRI_IMAGE_FORMAT_ARGB8888;
2513 pitch = attrs.DRMBufferStrideMESA;
2514 break;
2515 default:
2516 _eglError(EGL_BAD_PARAMETER,
2517 "dri2_create_image_khr: unsupported pixmap depth");
2518 return NULL;
2519 }
2520
2521 dri_image =
2522 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2523 attrs.Width,
2524 attrs.Height,
2525 format,
2526 name,
2527 pitch,
2528 NULL);
2529
2530 return dri2_create_image_from_dri(disp, dri_image);
2531 }
2532
2533 static EGLBoolean
2534 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2535 {
2536 /**
2537 * The spec says:
2538 *
2539 * "Required attributes and their values are as follows:
2540 *
2541 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2542 *
2543 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2544 * by drm_fourcc.h and used as the pixel_format parameter of the
2545 * drm_mode_fb_cmd2 ioctl."
2546 *
2547 * and
2548 *
2549 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2550 * incomplete, EGL_BAD_PARAMETER is generated."
2551 */
2552 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2553 !attrs->DMABufFourCC.IsPresent)
2554 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2555
2556 /**
2557 * Also:
2558 *
2559 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2560 * specified for a plane's pitch or offset isn't supported by EGL,
2561 * EGL_BAD_ACCESS is generated."
2562 */
2563 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2564 if (attrs->DMABufPlanePitches[i].IsPresent &&
2565 attrs->DMABufPlanePitches[i].Value <= 0)
2566 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2567 }
2568
2569 /**
2570 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2571 * attribute values may be given.
2572 *
2573 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2574 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2575 */
2576 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2577 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2578 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2579 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2580 }
2581
2582 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2583 * mandate it, we only accept the same modifier across all planes. */
2584 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2585 if (attrs->DMABufPlaneFds[i].IsPresent) {
2586 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2587 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2588 (attrs->DMABufPlaneModifiersLo[0].Value !=
2589 attrs->DMABufPlaneModifiersLo[i].Value) ||
2590 (attrs->DMABufPlaneModifiersHi[0].Value !=
2591 attrs->DMABufPlaneModifiersHi[i].Value))
2592 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2593 }
2594 }
2595
2596 return EGL_TRUE;
2597 }
2598
2599 /* Returns the total number of planes for the format or zero if it isn't a
2600 * valid fourcc format.
2601 */
2602 static unsigned
2603 dri2_num_fourcc_format_planes(EGLint format)
2604 {
2605 switch (format) {
2606 case DRM_FORMAT_R8:
2607 case DRM_FORMAT_RG88:
2608 case DRM_FORMAT_GR88:
2609 case DRM_FORMAT_R16:
2610 case DRM_FORMAT_GR1616:
2611 case DRM_FORMAT_RGB332:
2612 case DRM_FORMAT_BGR233:
2613 case DRM_FORMAT_XRGB4444:
2614 case DRM_FORMAT_XBGR4444:
2615 case DRM_FORMAT_RGBX4444:
2616 case DRM_FORMAT_BGRX4444:
2617 case DRM_FORMAT_ARGB4444:
2618 case DRM_FORMAT_ABGR4444:
2619 case DRM_FORMAT_RGBA4444:
2620 case DRM_FORMAT_BGRA4444:
2621 case DRM_FORMAT_XRGB1555:
2622 case DRM_FORMAT_XBGR1555:
2623 case DRM_FORMAT_RGBX5551:
2624 case DRM_FORMAT_BGRX5551:
2625 case DRM_FORMAT_ARGB1555:
2626 case DRM_FORMAT_ABGR1555:
2627 case DRM_FORMAT_RGBA5551:
2628 case DRM_FORMAT_BGRA5551:
2629 case DRM_FORMAT_RGB565:
2630 case DRM_FORMAT_BGR565:
2631 case DRM_FORMAT_RGB888:
2632 case DRM_FORMAT_BGR888:
2633 case DRM_FORMAT_XRGB8888:
2634 case DRM_FORMAT_XBGR8888:
2635 case DRM_FORMAT_RGBX8888:
2636 case DRM_FORMAT_BGRX8888:
2637 case DRM_FORMAT_ARGB8888:
2638 case DRM_FORMAT_ABGR8888:
2639 case DRM_FORMAT_RGBA8888:
2640 case DRM_FORMAT_BGRA8888:
2641 case DRM_FORMAT_XRGB2101010:
2642 case DRM_FORMAT_XBGR2101010:
2643 case DRM_FORMAT_RGBX1010102:
2644 case DRM_FORMAT_BGRX1010102:
2645 case DRM_FORMAT_ARGB2101010:
2646 case DRM_FORMAT_ABGR2101010:
2647 case DRM_FORMAT_RGBA1010102:
2648 case DRM_FORMAT_BGRA1010102:
2649 case DRM_FORMAT_XBGR16161616F:
2650 case DRM_FORMAT_ABGR16161616F:
2651 case DRM_FORMAT_YUYV:
2652 case DRM_FORMAT_YVYU:
2653 case DRM_FORMAT_UYVY:
2654 case DRM_FORMAT_VYUY:
2655 case DRM_FORMAT_AYUV:
2656 case DRM_FORMAT_XYUV8888:
2657 return 1;
2658
2659 case DRM_FORMAT_NV12:
2660 case DRM_FORMAT_NV21:
2661 case DRM_FORMAT_NV16:
2662 case DRM_FORMAT_NV61:
2663 case DRM_FORMAT_P010:
2664 case DRM_FORMAT_P012:
2665 case DRM_FORMAT_P016:
2666 return 2;
2667
2668 case DRM_FORMAT_YUV410:
2669 case DRM_FORMAT_YVU410:
2670 case DRM_FORMAT_YUV411:
2671 case DRM_FORMAT_YVU411:
2672 case DRM_FORMAT_YUV420:
2673 case DRM_FORMAT_YVU420:
2674 case DRM_FORMAT_YUV422:
2675 case DRM_FORMAT_YVU422:
2676 case DRM_FORMAT_YUV444:
2677 case DRM_FORMAT_YVU444:
2678 return 3;
2679
2680 default:
2681 return 0;
2682 }
2683 }
2684
2685 /* Returns the total number of file descriptors. Zero indicates an error. */
2686 static unsigned
2687 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2688 {
2689 unsigned plane_n = dri2_num_fourcc_format_planes(attrs->DMABufFourCC.Value);
2690 if (plane_n == 0) {
2691 _eglError(EGL_BAD_MATCH, "unknown drm fourcc format");
2692 return 0;
2693 }
2694
2695 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2696 /**
2697 * The modifiers extension spec says:
2698 *
2699 * "Modifiers may modify any attribute of a buffer import, including
2700 * but not limited to adding extra planes to a format which
2701 * otherwise does not have those planes. As an example, a modifier
2702 * may add a plane for an external compression buffer to a
2703 * single-plane format. The exact meaning and effect of any
2704 * modifier is canonically defined by drm_fourcc.h, not as part of
2705 * this extension."
2706 */
2707 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2708 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2709 plane_n = i + 1;
2710 }
2711 }
2712
2713 /**
2714 * The spec says:
2715 *
2716 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2717 * incomplete, EGL_BAD_PARAMETER is generated."
2718 */
2719 for (unsigned i = 0; i < plane_n; ++i) {
2720 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2721 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2722 !attrs->DMABufPlanePitches[i].IsPresent) {
2723 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2724 return 0;
2725 }
2726 }
2727
2728 /**
2729 * The spec also says:
2730 *
2731 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2732 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2733 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2734 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2735 */
2736 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2737 if (attrs->DMABufPlaneFds[i].IsPresent ||
2738 attrs->DMABufPlaneOffsets[i].IsPresent ||
2739 attrs->DMABufPlanePitches[i].IsPresent) {
2740 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2741 return 0;
2742 }
2743 }
2744
2745 return plane_n;
2746 }
2747
2748 static EGLBoolean
2749 dri2_query_dma_buf_formats(const _EGLDriver *drv, _EGLDisplay *disp,
2750 EGLint max, EGLint *formats, EGLint *count)
2751 {
2752 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2753 if (max < 0 || (max > 0 && formats == NULL))
2754 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2755
2756 if (dri2_dpy->image->base.version < 15 ||
2757 dri2_dpy->image->queryDmaBufFormats == NULL)
2758 return EGL_FALSE;
2759
2760 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2761 formats, count))
2762 return EGL_FALSE;
2763
2764 if (max > 0) {
2765 /* Assert that all of the formats returned are actually fourcc formats.
2766 * Some day, if we want the internal interface function to be able to
2767 * return the fake fourcc formats defined in dri_interface.h, we'll have
2768 * to do something more clever here to pair the list down to just real
2769 * fourcc formats so that we don't leak the fake internal ones.
2770 */
2771 for (int i = 0; i < *count; i++) {
2772 assert(dri2_num_fourcc_format_planes(formats[i]) > 0);
2773 }
2774 }
2775
2776 return EGL_TRUE;
2777 }
2778
2779 static EGLBoolean
2780 dri2_query_dma_buf_modifiers(const _EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2781 EGLint max, EGLuint64KHR *modifiers,
2782 EGLBoolean *external_only, EGLint *count)
2783 {
2784 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2785
2786 if (dri2_num_fourcc_format_planes(format) == 0)
2787 return _eglError(EGL_BAD_PARAMETER, "invalid fourcc format");
2788
2789 if (max < 0)
2790 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2791
2792 if (max > 0 && modifiers == NULL)
2793 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2794
2795 if (dri2_dpy->image->base.version < 15 ||
2796 dri2_dpy->image->queryDmaBufModifiers == NULL)
2797 return EGL_FALSE;
2798
2799 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2800 max, modifiers,
2801 (unsigned int *) external_only,
2802 count) == false)
2803 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2804
2805 return EGL_TRUE;
2806 }
2807
2808 /**
2809 * The spec says:
2810 *
2811 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2812 * EGL will take a reference to the dma_buf(s) which it will release at any
2813 * time while the EGLDisplay is initialized. It is the responsibility of the
2814 * application to close the dma_buf file descriptors."
2815 *
2816 * Therefore we must never close or otherwise modify the file descriptors.
2817 */
2818 _EGLImage *
2819 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2820 EGLClientBuffer buffer, const EGLint *attr_list)
2821 {
2822 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2823 _EGLImage *res;
2824 _EGLImageAttribs attrs;
2825 __DRIimage *dri_image;
2826 unsigned num_fds;
2827 int fds[DMA_BUF_MAX_PLANES];
2828 int pitches[DMA_BUF_MAX_PLANES];
2829 int offsets[DMA_BUF_MAX_PLANES];
2830 uint64_t modifier;
2831 bool has_modifier = false;
2832 unsigned error;
2833
2834 /**
2835 * The spec says:
2836 *
2837 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2838 * error EGL_BAD_PARAMETER is generated."
2839 */
2840 if (buffer != NULL) {
2841 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2842 return NULL;
2843 }
2844
2845 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2846 return NULL;
2847
2848 if (!dri2_check_dma_buf_attribs(&attrs))
2849 return NULL;
2850
2851 num_fds = dri2_check_dma_buf_format(&attrs);
2852 if (!num_fds)
2853 return NULL;
2854
2855 for (unsigned i = 0; i < num_fds; ++i) {
2856 fds[i] = attrs.DMABufPlaneFds[i].Value;
2857 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2858 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2859 }
2860
2861 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2862 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2863 * attrs.DMABufPlaneModifiersHi[0] */
2864 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2865 modifier = combine_u32_into_u64(attrs.DMABufPlaneModifiersHi[0].Value,
2866 attrs.DMABufPlaneModifiersLo[0].Value);
2867 has_modifier = true;
2868 }
2869
2870 if (has_modifier) {
2871 if (dri2_dpy->image->base.version < 15 ||
2872 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2873 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2874 return EGL_NO_IMAGE_KHR;
2875 }
2876 dri_image =
2877 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2878 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2879 modifier, fds, num_fds, pitches, offsets,
2880 attrs.DMABufYuvColorSpaceHint.Value,
2881 attrs.DMABufSampleRangeHint.Value,
2882 attrs.DMABufChromaHorizontalSiting.Value,
2883 attrs.DMABufChromaVerticalSiting.Value,
2884 &error,
2885 NULL);
2886 }
2887 else {
2888 dri_image =
2889 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2890 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2891 fds, num_fds, pitches, offsets,
2892 attrs.DMABufYuvColorSpaceHint.Value,
2893 attrs.DMABufSampleRangeHint.Value,
2894 attrs.DMABufChromaHorizontalSiting.Value,
2895 attrs.DMABufChromaVerticalSiting.Value,
2896 &error,
2897 NULL);
2898 }
2899 dri2_create_image_khr_texture_error(error);
2900
2901 if (!dri_image)
2902 return EGL_NO_IMAGE_KHR;
2903
2904 res = dri2_create_image_from_dri(disp, dri_image);
2905
2906 return res;
2907 }
2908 static _EGLImage *
2909 dri2_create_drm_image_mesa(const _EGLDriver *drv, _EGLDisplay *disp,
2910 const EGLint *attr_list)
2911 {
2912 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2913 struct dri2_egl_image *dri2_img;
2914 _EGLImageAttribs attrs;
2915 unsigned int dri_use, valid_mask;
2916 int format;
2917
2918 (void) drv;
2919
2920 if (!attr_list) {
2921 _eglError(EGL_BAD_PARAMETER, __func__);
2922 return EGL_NO_IMAGE_KHR;
2923 }
2924
2925 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2926 return EGL_NO_IMAGE_KHR;
2927
2928 if (attrs.Width <= 0 || attrs.Height <= 0) {
2929 _eglError(EGL_BAD_PARAMETER, __func__);
2930 return EGL_NO_IMAGE_KHR;
2931 }
2932
2933 switch (attrs.DRMBufferFormatMESA) {
2934 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2935 format = __DRI_IMAGE_FORMAT_ARGB8888;
2936 break;
2937 default:
2938 _eglError(EGL_BAD_PARAMETER, __func__);
2939 return EGL_NO_IMAGE_KHR;
2940 }
2941
2942 valid_mask =
2943 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2944 EGL_DRM_BUFFER_USE_SHARE_MESA |
2945 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2946 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2947 _eglError(EGL_BAD_PARAMETER, __func__);
2948 return EGL_NO_IMAGE_KHR;
2949 }
2950
2951 dri_use = 0;
2952 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2953 dri_use |= __DRI_IMAGE_USE_SHARE;
2954 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2955 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2956 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2957 dri_use |= __DRI_IMAGE_USE_CURSOR;
2958
2959 dri2_img = malloc(sizeof *dri2_img);
2960 if (!dri2_img) {
2961 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2962 return EGL_NO_IMAGE_KHR;
2963 }
2964
2965 _eglInitImage(&dri2_img->base, disp);
2966
2967 dri2_img->dri_image =
2968 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2969 attrs.Width, attrs.Height,
2970 format, dri_use, dri2_img);
2971 if (dri2_img->dri_image == NULL) {
2972 free(dri2_img);
2973 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2974 return EGL_NO_IMAGE_KHR;
2975 }
2976
2977 return &dri2_img->base;
2978 }
2979
2980 static EGLBoolean
2981 dri2_export_drm_image_mesa(const _EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2982 EGLint *name, EGLint *handle, EGLint *stride)
2983 {
2984 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2985 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2986
2987 (void) drv;
2988
2989 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2990 __DRI_IMAGE_ATTRIB_NAME, name))
2991 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2992
2993 if (handle)
2994 dri2_dpy->image->queryImage(dri2_img->dri_image,
2995 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2996
2997 if (stride)
2998 dri2_dpy->image->queryImage(dri2_img->dri_image,
2999 __DRI_IMAGE_ATTRIB_STRIDE, stride);
3000
3001 return EGL_TRUE;
3002 }
3003
3004 /**
3005 * Checks if we can support EGL_MESA_image_dma_buf_export on this image.
3006
3007 * The spec provides a boolean return for the driver to reject exporting for
3008 * basically any reason, but doesn't specify any particular error cases. For
3009 * now, we just fail if we don't have a DRM fourcc for the format.
3010 */
3011 static bool
3012 dri2_can_export_dma_buf_image(_EGLDisplay *disp, _EGLImage *img)
3013 {
3014 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3015 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3016 EGLint fourcc;
3017
3018 if (!dri2_dpy->image->queryImage(dri2_img->dri_image,
3019 __DRI_IMAGE_ATTRIB_FOURCC, &fourcc)) {
3020 return false;
3021 }
3022
3023 return true;
3024 }
3025
3026 static EGLBoolean
3027 dri2_export_dma_buf_image_query_mesa(const _EGLDriver *drv, _EGLDisplay *disp,
3028 _EGLImage *img,
3029 EGLint *fourcc, EGLint *nplanes,
3030 EGLuint64KHR *modifiers)
3031 {
3032 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3033 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3034 int num_planes;
3035
3036 (void) drv;
3037
3038 if (!dri2_can_export_dma_buf_image(disp, img))
3039 return EGL_FALSE;
3040
3041 dri2_dpy->image->queryImage(dri2_img->dri_image,
3042 __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes);
3043 if (nplanes)
3044 *nplanes = num_planes;
3045
3046 if (fourcc)
3047 dri2_dpy->image->queryImage(dri2_img->dri_image,
3048 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
3049
3050 if (modifiers) {
3051 int mod_hi, mod_lo;
3052 uint64_t modifier = DRM_FORMAT_MOD_INVALID;
3053 bool query;
3054
3055 query = dri2_dpy->image->queryImage(dri2_img->dri_image,
3056 __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
3057 &mod_hi);
3058 query &= dri2_dpy->image->queryImage(dri2_img->dri_image,
3059 __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
3060 &mod_lo);
3061 if (query)
3062 modifier = combine_u32_into_u64 (mod_hi, mod_lo);
3063
3064 for (int i = 0; i < num_planes; i++)
3065 modifiers[i] = modifier;
3066 }
3067
3068 return EGL_TRUE;
3069 }
3070
3071 static EGLBoolean
3072 dri2_export_dma_buf_image_mesa(const _EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
3073 int *fds, EGLint *strides, EGLint *offsets)
3074 {
3075 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3076 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3077 EGLint nplanes;
3078
3079 (void) drv;
3080
3081 if (!dri2_can_export_dma_buf_image(disp, img))
3082 return EGL_FALSE;
3083
3084 /* EGL_MESA_image_dma_buf_export spec says:
3085 * "If the number of fds is less than the number of planes, then
3086 * subsequent fd slots should contain -1."
3087 */
3088 if (fds) {
3089 /* Query nplanes so that we know how big the given array is. */
3090 dri2_dpy->image->queryImage(dri2_img->dri_image,
3091 __DRI_IMAGE_ATTRIB_NUM_PLANES, &nplanes);
3092 memset(fds, -1, nplanes * sizeof(int));
3093 }
3094
3095 /* rework later to provide multiple fds/strides/offsets */
3096 if (fds)
3097 dri2_dpy->image->queryImage(dri2_img->dri_image,
3098 __DRI_IMAGE_ATTRIB_FD, fds);
3099
3100 if (strides)
3101 dri2_dpy->image->queryImage(dri2_img->dri_image,
3102 __DRI_IMAGE_ATTRIB_STRIDE, strides);
3103
3104 if (offsets) {
3105 int img_offset;
3106 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
3107 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
3108 if (ret)
3109 offsets[0] = img_offset;
3110 else
3111 offsets[0] = 0;
3112 }
3113
3114 return EGL_TRUE;
3115 }
3116
3117 #endif
3118
3119 _EGLImage *
3120 dri2_create_image_khr(const _EGLDriver *drv, _EGLDisplay *disp,
3121 _EGLContext *ctx, EGLenum target,
3122 EGLClientBuffer buffer, const EGLint *attr_list)
3123 {
3124 (void) drv;
3125
3126 switch (target) {
3127 case EGL_GL_TEXTURE_2D_KHR:
3128 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
3129 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
3130 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
3131 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
3132 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
3133 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
3134 case EGL_GL_TEXTURE_3D_KHR:
3135 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
3136 case EGL_GL_RENDERBUFFER_KHR:
3137 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
3138 #ifdef HAVE_LIBDRM
3139 case EGL_DRM_BUFFER_MESA:
3140 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
3141 case EGL_LINUX_DMA_BUF_EXT:
3142 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
3143 #endif
3144 #ifdef HAVE_WAYLAND_PLATFORM
3145 case EGL_WAYLAND_BUFFER_WL:
3146 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
3147 #endif
3148 default:
3149 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
3150 return EGL_NO_IMAGE_KHR;
3151 }
3152 }
3153
3154 static EGLBoolean
3155 dri2_destroy_image_khr(const _EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
3156 {
3157 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3158 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
3159
3160 (void) drv;
3161
3162 dri2_dpy->image->destroyImage(dri2_img->dri_image);
3163 free(dri2_img);
3164
3165 return EGL_TRUE;
3166 }
3167
3168 #ifdef HAVE_WAYLAND_PLATFORM
3169
3170 static void
3171 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
3172 struct wl_drm_buffer *buffer)
3173 {
3174 _EGLDisplay *disp = user_data;
3175 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3176 __DRIimage *img;
3177 int dri_components = 0;
3178
3179 if (fd == -1)
3180 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
3181 buffer->width,
3182 buffer->height,
3183 buffer->format,
3184 (int*)&name, 1,
3185 buffer->stride,
3186 buffer->offset,
3187 NULL);
3188 else
3189 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
3190 buffer->width,
3191 buffer->height,
3192 buffer->format,
3193 &fd, 1,
3194 buffer->stride,
3195 buffer->offset,
3196 NULL);
3197
3198 if (img == NULL)
3199 return;
3200
3201 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
3202
3203 buffer->driver_format = NULL;
3204 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
3205 if (wl_drm_components[i].dri_components == dri_components)
3206 buffer->driver_format = &wl_drm_components[i];
3207
3208 if (buffer->driver_format == NULL)
3209 dri2_dpy->image->destroyImage(img);
3210 else
3211 buffer->driver_buffer = img;
3212 }
3213
3214 static void
3215 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
3216 {
3217 _EGLDisplay *disp = user_data;
3218 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3219
3220 dri2_dpy->image->destroyImage(buffer->driver_buffer);
3221 }
3222
3223 static EGLBoolean
3224 dri2_bind_wayland_display_wl(const _EGLDriver *drv, _EGLDisplay *disp,
3225 struct wl_display *wl_dpy)
3226 {
3227 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3228 const struct wayland_drm_callbacks wl_drm_callbacks = {
3229 .authenticate = (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate,
3230 .reference_buffer = dri2_wl_reference_buffer,
3231 .release_buffer = dri2_wl_release_buffer,
3232 .is_format_supported = dri2_wl_is_format_supported
3233 };
3234 int flags = 0;
3235 uint64_t cap;
3236
3237 (void) drv;
3238
3239 if (dri2_dpy->wl_server_drm)
3240 return EGL_FALSE;
3241
3242 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
3243 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
3244 dri2_dpy->image->base.version >= 7 &&
3245 dri2_dpy->image->createImageFromFds != NULL)
3246 flags |= WAYLAND_DRM_PRIME;
3247
3248 dri2_dpy->wl_server_drm =
3249 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
3250 &wl_drm_callbacks, disp, flags);
3251
3252 if (!dri2_dpy->wl_server_drm)
3253 return EGL_FALSE;
3254
3255 #ifdef HAVE_DRM_PLATFORM
3256 /* We have to share the wl_drm instance with gbm, so gbm can convert
3257 * wl_buffers to gbm bos. */
3258 if (dri2_dpy->gbm_dri)
3259 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
3260 #endif
3261
3262 return EGL_TRUE;
3263 }
3264
3265 static EGLBoolean
3266 dri2_unbind_wayland_display_wl(const _EGLDriver *drv, _EGLDisplay *disp,
3267 struct wl_display *wl_dpy)
3268 {
3269 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3270
3271 (void) drv;
3272
3273 if (!dri2_dpy->wl_server_drm)
3274 return EGL_FALSE;
3275
3276 wayland_drm_uninit(dri2_dpy->wl_server_drm);
3277 dri2_dpy->wl_server_drm = NULL;
3278
3279 return EGL_TRUE;
3280 }
3281
3282 static EGLBoolean
3283 dri2_query_wayland_buffer_wl(const _EGLDriver *drv, _EGLDisplay *disp,
3284 struct wl_resource *buffer_resource,
3285 EGLint attribute, EGLint *value)
3286 {
3287 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3288 struct wl_drm_buffer *buffer;
3289 const struct wl_drm_components_descriptor *format;
3290
3291 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
3292 if (!buffer)
3293 return EGL_FALSE;
3294
3295 format = buffer->driver_format;
3296 switch (attribute) {
3297 case EGL_TEXTURE_FORMAT:
3298 *value = format->components;
3299 return EGL_TRUE;
3300 case EGL_WIDTH:
3301 *value = buffer->width;
3302 return EGL_TRUE;
3303 case EGL_HEIGHT:
3304 *value = buffer->height;
3305 return EGL_TRUE;
3306 }
3307
3308 return EGL_FALSE;
3309 }
3310 #endif
3311
3312 static void
3313 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
3314 {
3315 p_atomic_inc(&sync->refcount);
3316 }
3317
3318 static void
3319 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
3320 struct dri2_egl_sync *dri2_sync)
3321 {
3322 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
3323 switch (dri2_sync->base.Type) {
3324 case EGL_SYNC_REUSABLE_KHR:
3325 cnd_destroy(&dri2_sync->cond);
3326 break;
3327 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3328 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
3329 close(dri2_sync->base.SyncFd);
3330 break;
3331 default:
3332 break;
3333 }
3334
3335 if (dri2_sync->fence)
3336 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
3337
3338 free(dri2_sync);
3339 }
3340 }
3341
3342 static _EGLSync *
3343 dri2_create_sync(const _EGLDriver *drv, _EGLDisplay *disp,
3344 EGLenum type, const EGLAttrib *attrib_list)
3345 {
3346 _EGLContext *ctx = _eglGetCurrentContext();
3347 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3348 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3349 struct dri2_egl_sync *dri2_sync;
3350 EGLint ret;
3351 pthread_condattr_t attr;
3352
3353 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
3354 if (!dri2_sync) {
3355 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3356 return NULL;
3357 }
3358
3359 if (!_eglInitSync(&dri2_sync->base, disp, type, attrib_list)) {
3360 free(dri2_sync);
3361 return NULL;
3362 }
3363
3364 switch (type) {
3365 case EGL_SYNC_FENCE_KHR:
3366 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
3367 if (!dri2_sync->fence) {
3368 /* Why did it fail? DRI doesn't return an error code, so we emit
3369 * a generic EGL error that doesn't communicate user error.
3370 */
3371 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3372 free(dri2_sync);
3373 return NULL;
3374 }
3375 break;
3376
3377 case EGL_SYNC_CL_EVENT_KHR:
3378 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
3379 dri2_dpy->dri_screen,
3380 dri2_sync->base.CLEvent);
3381 /* this can only happen if the cl_event passed in is invalid. */
3382 if (!dri2_sync->fence) {
3383 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3384 free(dri2_sync);
3385 return NULL;
3386 }
3387
3388 /* the initial status must be "signaled" if the cl_event is signaled */
3389 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
3390 dri2_sync->fence, 0, 0))
3391 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3392 break;
3393
3394 case EGL_SYNC_REUSABLE_KHR:
3395 /* intialize attr */
3396 ret = pthread_condattr_init(&attr);
3397
3398 if (ret) {
3399 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3400 free(dri2_sync);
3401 return NULL;
3402 }
3403
3404 /* change clock attribute to CLOCK_MONOTONIC */
3405 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
3406
3407 if (ret) {
3408 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3409 free(dri2_sync);
3410 return NULL;
3411 }
3412
3413 ret = pthread_cond_init(&dri2_sync->cond, &attr);
3414
3415 if (ret) {
3416 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3417 free(dri2_sync);
3418 return NULL;
3419 }
3420
3421 /* initial status of reusable sync must be "unsignaled" */
3422 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
3423 break;
3424
3425 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3426 if (dri2_dpy->fence->create_fence_fd) {
3427 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
3428 dri2_ctx->dri_context,
3429 dri2_sync->base.SyncFd);
3430 }
3431 if (!dri2_sync->fence) {
3432 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3433 free(dri2_sync);
3434 return NULL;
3435 }
3436 break;
3437 }
3438
3439 p_atomic_set(&dri2_sync->refcount, 1);
3440 return &dri2_sync->base;
3441 }
3442
3443 static EGLBoolean
3444 dri2_destroy_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3445 {
3446 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3447 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3448 EGLint ret = EGL_TRUE;
3449 EGLint err;
3450
3451 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
3452 * then unlock all threads possibly blocked by the reusable sync before
3453 * destroying it.
3454 */
3455 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
3456 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3457 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3458 /* unblock all threads currently blocked by sync */
3459 err = cnd_broadcast(&dri2_sync->cond);
3460
3461 if (err) {
3462 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
3463 ret = EGL_FALSE;
3464 }
3465 }
3466
3467 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3468
3469 return ret;
3470 }
3471
3472 static EGLint
3473 dri2_dup_native_fence_fd(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3474 {
3475 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3476 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3477
3478 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
3479
3480 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3481 /* try to retrieve the actual native fence fd.. if rendering is
3482 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
3483 */
3484 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
3485 dri2_sync->fence);
3486 }
3487
3488 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3489 /* if native fence fd still not created, return an error: */
3490 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
3491 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
3492 }
3493
3494 return os_dupfd_cloexec(sync->SyncFd);
3495 }
3496
3497 static void
3498 dri2_set_blob_cache_funcs(const _EGLDriver *drv, _EGLDisplay *disp,
3499 EGLSetBlobFuncANDROID set,
3500 EGLGetBlobFuncANDROID get)
3501 {
3502 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3503 dri2_dpy->blob->set_cache_funcs(dri2_dpy->dri_screen,
3504 disp->BlobCacheSet,
3505 disp->BlobCacheGet);
3506 }
3507
3508 static EGLint
3509 dri2_client_wait_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3510 EGLint flags, EGLTime timeout)
3511 {
3512 _EGLContext *ctx = _eglGetCurrentContext();
3513 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3514 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3515 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3516 unsigned wait_flags = 0;
3517
3518 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
3519
3520 /* The EGL_KHR_fence_sync spec states:
3521 *
3522 * "If no context is current for the bound API,
3523 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
3524 */
3525 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
3526 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
3527
3528 /* the sync object should take a reference while waiting */
3529 dri2_egl_ref_sync(dri2_sync);
3530
3531 switch (sync->Type) {
3532 case EGL_SYNC_FENCE_KHR:
3533 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3534 case EGL_SYNC_CL_EVENT_KHR:
3535 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
3536 dri2_sync->fence, wait_flags,
3537 timeout))
3538 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3539 else
3540 ret = EGL_TIMEOUT_EXPIRED_KHR;
3541 break;
3542
3543 case EGL_SYNC_REUSABLE_KHR:
3544 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
3545 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
3546 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
3547 dri2_gl_flush();
3548 }
3549
3550 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
3551 if (timeout == EGL_FOREVER_KHR) {
3552 mtx_lock(&dri2_sync->mutex);
3553 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
3554 mtx_unlock(&dri2_sync->mutex);
3555 } else {
3556 /* if reusable sync has not been yet signaled */
3557 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
3558 /* timespecs for cnd_timedwait */
3559 struct timespec current;
3560 struct timespec expire;
3561
3562 /* We override the clock to monotonic when creating the condition
3563 * variable. */
3564 clock_gettime(CLOCK_MONOTONIC, &current);
3565
3566 /* calculating when to expire */
3567 expire.tv_nsec = timeout % 1000000000L;
3568 expire.tv_sec = timeout / 1000000000L;
3569
3570 expire.tv_nsec += current.tv_nsec;
3571 expire.tv_sec += current.tv_sec;
3572
3573 /* expire.nsec now is a number between 0 and 1999999998 */
3574 if (expire.tv_nsec > 999999999L) {
3575 expire.tv_sec++;
3576 expire.tv_nsec -= 1000000000L;
3577 }
3578
3579 mtx_lock(&dri2_sync->mutex);
3580 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3581 mtx_unlock(&dri2_sync->mutex);
3582
3583 if (ret == thrd_busy) {
3584 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3585 ret = EGL_TIMEOUT_EXPIRED_KHR;
3586 } else {
3587 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3588 ret = EGL_FALSE;
3589 }
3590 }
3591 }
3592 }
3593 break;
3594 }
3595 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3596
3597 return ret;
3598 }
3599
3600 static EGLBoolean
3601 dri2_signal_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3602 EGLenum mode)
3603 {
3604 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3605 EGLint ret;
3606
3607 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3608 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3609
3610 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3611 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3612
3613 dri2_sync->base.SyncStatus = mode;
3614
3615 if (mode == EGL_SIGNALED_KHR) {
3616 ret = cnd_broadcast(&dri2_sync->cond);
3617
3618 /* fail to broadcast */
3619 if (ret)
3620 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3621 }
3622
3623 return EGL_TRUE;
3624 }
3625
3626 static EGLint
3627 dri2_server_wait_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3628 {
3629 _EGLContext *ctx = _eglGetCurrentContext();
3630 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3631 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3632 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3633
3634 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3635 dri2_sync->fence, 0);
3636 return EGL_TRUE;
3637 }
3638
3639 static int
3640 dri2_interop_query_device_info(_EGLDisplay *disp, _EGLContext *ctx,
3641 struct mesa_glinterop_device_info *out)
3642 {
3643 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3644 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3645
3646 if (!dri2_dpy->interop)
3647 return MESA_GLINTEROP_UNSUPPORTED;
3648
3649 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3650 }
3651
3652 static int
3653 dri2_interop_export_object(_EGLDisplay *disp, _EGLContext *ctx,
3654 struct mesa_glinterop_export_in *in,
3655 struct mesa_glinterop_export_out *out)
3656 {
3657 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3658 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3659
3660 if (!dri2_dpy->interop)
3661 return MESA_GLINTEROP_UNSUPPORTED;
3662
3663 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3664 }
3665
3666 const _EGLDriver _eglDriver = {
3667 .Initialize = dri2_initialize,
3668 .Terminate = dri2_terminate,
3669 .CreateContext = dri2_create_context,
3670 .DestroyContext = dri2_destroy_context,
3671 .MakeCurrent = dri2_make_current,
3672 .CreateWindowSurface = dri2_create_window_surface,
3673 .CreatePixmapSurface = dri2_create_pixmap_surface,
3674 .CreatePbufferSurface = dri2_create_pbuffer_surface,
3675 .DestroySurface = dri2_destroy_surface,
3676 .GetProcAddress = dri2_get_proc_address,
3677 .WaitClient = dri2_wait_client,
3678 .WaitNative = dri2_wait_native,
3679 .BindTexImage = dri2_bind_tex_image,
3680 .ReleaseTexImage = dri2_release_tex_image,
3681 .SwapInterval = dri2_swap_interval,
3682 .SwapBuffers = dri2_swap_buffers,
3683 .SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage,
3684 .SwapBuffersRegionNOK = dri2_swap_buffers_region,
3685 .SetDamageRegion = dri2_set_damage_region,
3686 .PostSubBufferNV = dri2_post_sub_buffer,
3687 .CopyBuffers = dri2_copy_buffers,
3688 .QueryBufferAge = dri2_query_buffer_age,
3689 .CreateImageKHR = dri2_create_image,
3690 .DestroyImageKHR = dri2_destroy_image_khr,
3691 .CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image,
3692 .QuerySurface = dri2_query_surface,
3693 .QueryDriverName = dri2_query_driver_name,
3694 .QueryDriverConfig = dri2_query_driver_config,
3695 #ifdef HAVE_LIBDRM
3696 .CreateDRMImageMESA = dri2_create_drm_image_mesa,
3697 .ExportDRMImageMESA = dri2_export_drm_image_mesa,
3698 .ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa,
3699 .ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa,
3700 .QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats,
3701 .QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers,
3702 #endif
3703 #ifdef HAVE_WAYLAND_PLATFORM
3704 .BindWaylandDisplayWL = dri2_bind_wayland_display_wl,
3705 .UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl,
3706 .QueryWaylandBufferWL = dri2_query_wayland_buffer_wl,
3707 #endif
3708 .GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium,
3709 .CreateSyncKHR = dri2_create_sync,
3710 .ClientWaitSyncKHR = dri2_client_wait_sync,
3711 .SignalSyncKHR = dri2_signal_sync,
3712 .WaitSyncKHR = dri2_server_wait_sync,
3713 .DestroySyncKHR = dri2_destroy_sync,
3714 .GLInteropQueryDeviceInfo = dri2_interop_query_device_info,
3715 .GLInteropExportObject = dri2_interop_export_object,
3716 .DupNativeFenceFDANDROID = dri2_dup_native_fence_fd,
3717 .SetBlobCacheFuncsANDROID = dri2_set_blob_cache_funcs,
3718 };