659e00c8df94fad4762c39773df99d01239cca39
[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(_EGLDriver *drv, _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(), GLX_drv->API.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(_EGLDriver *drv, _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(drv, disp);
1172 break;
1173 case _EGL_PLATFORM_DEVICE:
1174 ret = dri2_initialize_device(drv, disp);
1175 break;
1176 case _EGL_PLATFORM_X11:
1177 ret = dri2_initialize_x11(drv, disp);
1178 break;
1179 case _EGL_PLATFORM_DRM:
1180 ret = dri2_initialize_drm(drv, disp);
1181 break;
1182 case _EGL_PLATFORM_WAYLAND:
1183 ret = dri2_initialize_wayland(drv, disp);
1184 break;
1185 case _EGL_PLATFORM_ANDROID:
1186 ret = dri2_initialize_android(drv, 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->API.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(_EGLDriver *drv, _EGLDisplay *disp)
1315 {
1316 /* Release all non-current Context/Surfaces. */
1317 _eglReleaseDisplayResources(drv, 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->API.CreateContext().
1467 */
1468 static _EGLContext *
1469 dri2_create_context(_EGLDriver *drv, _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 (void) drv;
1485
1486 dri2_ctx = malloc(sizeof *dri2_ctx);
1487 if (!dri2_ctx) {
1488 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1489 return NULL;
1490 }
1491
1492 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1493 goto cleanup;
1494
1495 /* The EGL_EXT_create_context_robustness spec says:
1496 *
1497 * "Add to the eglCreateContext context creation errors: [...]
1498 *
1499 * * If the reset notification behavior of <share_context> and the
1500 * newly created context are different then an EGL_BAD_MATCH error is
1501 * generated."
1502 */
1503 if (share_list && share_list->ResetNotificationStrategy !=
1504 dri2_ctx->base.ResetNotificationStrategy) {
1505 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1506 goto cleanup;
1507 }
1508
1509 /* The EGL_KHR_create_context_no_error spec says:
1510 *
1511 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1512 * used to create <share_context> does not match the value of
1513 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1514 */
1515 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1516 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1517 goto cleanup;
1518 }
1519
1520 switch (dri2_ctx->base.ClientAPI) {
1521 case EGL_OPENGL_ES_API:
1522 switch (dri2_ctx->base.ClientMajorVersion) {
1523 case 1:
1524 api = __DRI_API_GLES;
1525 break;
1526 case 2:
1527 api = __DRI_API_GLES2;
1528 break;
1529 case 3:
1530 api = __DRI_API_GLES3;
1531 break;
1532 default:
1533 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1534 free(dri2_ctx);
1535 return NULL;
1536 }
1537 break;
1538 case EGL_OPENGL_API:
1539 if ((dri2_ctx->base.ClientMajorVersion >= 4
1540 || (dri2_ctx->base.ClientMajorVersion == 3
1541 && dri2_ctx->base.ClientMinorVersion >= 2))
1542 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1543 api = __DRI_API_OPENGL_CORE;
1544 else if (dri2_ctx->base.ClientMajorVersion == 3 &&
1545 dri2_ctx->base.ClientMinorVersion == 1)
1546 api = __DRI_API_OPENGL_CORE;
1547 else
1548 api = __DRI_API_OPENGL;
1549 break;
1550 default:
1551 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1552 free(dri2_ctx);
1553 return NULL;
1554 }
1555
1556 if (conf != NULL) {
1557 /* The config chosen here isn't necessarily
1558 * used for surfaces later.
1559 * A pixmap surface will use the single config.
1560 * This opportunity depends on disabling the
1561 * doubleBufferMode check in
1562 * src/mesa/main/context.c:check_compatible()
1563 */
1564 if (dri2_config->dri_config[1][0])
1565 dri_config = dri2_config->dri_config[1][0];
1566 else
1567 dri_config = dri2_config->dri_config[0][0];
1568 }
1569 else
1570 dri_config = NULL;
1571
1572 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1573 &num_attribs))
1574 goto cleanup;
1575
1576 if (dri2_dpy->image_driver) {
1577 dri2_ctx->dri_context =
1578 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1579 api,
1580 dri_config,
1581 shared,
1582 num_attribs / 2,
1583 ctx_attribs,
1584 & error,
1585 dri2_ctx);
1586 dri2_create_context_attribs_error(error);
1587 } else if (dri2_dpy->dri2) {
1588 if (dri2_dpy->dri2->base.version >= 3) {
1589 dri2_ctx->dri_context =
1590 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1591 api,
1592 dri_config,
1593 shared,
1594 num_attribs / 2,
1595 ctx_attribs,
1596 & error,
1597 dri2_ctx);
1598 dri2_create_context_attribs_error(error);
1599 } else {
1600 dri2_ctx->dri_context =
1601 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1602 api,
1603 dri_config,
1604 shared,
1605 dri2_ctx);
1606 }
1607 } else {
1608 assert(dri2_dpy->swrast);
1609 if (dri2_dpy->swrast->base.version >= 3) {
1610 dri2_ctx->dri_context =
1611 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1612 api,
1613 dri_config,
1614 shared,
1615 num_attribs / 2,
1616 ctx_attribs,
1617 & error,
1618 dri2_ctx);
1619 dri2_create_context_attribs_error(error);
1620 } else {
1621 dri2_ctx->dri_context =
1622 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1623 api,
1624 dri_config,
1625 shared,
1626 dri2_ctx);
1627 }
1628 }
1629
1630 if (!dri2_ctx->dri_context)
1631 goto cleanup;
1632
1633 return &dri2_ctx->base;
1634
1635 cleanup:
1636 free(dri2_ctx);
1637 return NULL;
1638 }
1639
1640 /**
1641 * Called via eglDestroyContext(), drv->API.DestroyContext().
1642 */
1643 static EGLBoolean
1644 dri2_destroy_context(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
1645 {
1646 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1647 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1648
1649 if (_eglPutContext(ctx)) {
1650 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1651 free(dri2_ctx);
1652 }
1653
1654 return EGL_TRUE;
1655 }
1656
1657 EGLBoolean
1658 dri2_init_surface(_EGLSurface *surf, _EGLDisplay *disp, EGLint type,
1659 _EGLConfig *conf, const EGLint *attrib_list,
1660 EGLBoolean enable_out_fence, void *native_surface)
1661 {
1662 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1663 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1664
1665 dri2_surf->out_fence_fd = -1;
1666 dri2_surf->enable_out_fence = false;
1667 if (dri2_dpy->fence && dri2_dpy->fence->base.version >= 2 &&
1668 dri2_dpy->fence->get_capabilities &&
1669 (dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen) &
1670 __DRI_FENCE_CAP_NATIVE_FD)) {
1671 dri2_surf->enable_out_fence = enable_out_fence;
1672 }
1673
1674 return _eglInitSurface(surf, disp, type, conf, attrib_list, native_surface);
1675 }
1676
1677 static void
1678 dri2_surface_set_out_fence_fd( _EGLSurface *surf, int fence_fd)
1679 {
1680 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1681
1682 if (dri2_surf->out_fence_fd >= 0)
1683 close(dri2_surf->out_fence_fd);
1684
1685 dri2_surf->out_fence_fd = fence_fd;
1686 }
1687
1688 void
1689 dri2_fini_surface(_EGLSurface *surf)
1690 {
1691 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1692
1693 dri2_surface_set_out_fence_fd(surf, -1);
1694 dri2_surf->enable_out_fence = false;
1695 }
1696
1697 static EGLBoolean
1698 dri2_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1699 {
1700 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1701
1702 if (!_eglPutSurface(surf))
1703 return EGL_TRUE;
1704
1705 return dri2_dpy->vtbl->destroy_surface(drv, disp, surf);
1706 }
1707
1708 static void
1709 dri2_surf_update_fence_fd(_EGLContext *ctx,
1710 _EGLDisplay *disp, _EGLSurface *surf)
1711 {
1712 __DRIcontext *dri_ctx = dri2_egl_context(ctx)->dri_context;
1713 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1714 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1715 int fence_fd = -1;
1716 void *fence;
1717
1718 if (!dri2_surf->enable_out_fence)
1719 return;
1720
1721 fence = dri2_dpy->fence->create_fence_fd(dri_ctx, -1);
1722 if (fence) {
1723 fence_fd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
1724 fence);
1725 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, fence);
1726 }
1727 dri2_surface_set_out_fence_fd(surf, fence_fd);
1728 }
1729
1730 EGLBoolean
1731 dri2_create_drawable(struct dri2_egl_display *dri2_dpy,
1732 const __DRIconfig *config,
1733 struct dri2_egl_surface *dri2_surf,
1734 void *loaderPrivate)
1735 {
1736 __DRIcreateNewDrawableFunc createNewDrawable;
1737
1738 if (dri2_dpy->image_driver)
1739 createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
1740 else if (dri2_dpy->dri2)
1741 createNewDrawable = dri2_dpy->dri2->createNewDrawable;
1742 else if (dri2_dpy->swrast)
1743 createNewDrawable = dri2_dpy->swrast->createNewDrawable;
1744 else
1745 return _eglError(EGL_BAD_ALLOC, "no createNewDrawable");
1746
1747 dri2_surf->dri_drawable = createNewDrawable(dri2_dpy->dri_screen,
1748 config, loaderPrivate);
1749 if (dri2_surf->dri_drawable == NULL)
1750 return _eglError(EGL_BAD_ALLOC, "createNewDrawable");
1751
1752 return EGL_TRUE;
1753 }
1754
1755 /**
1756 * Called via eglMakeCurrent(), drv->API.MakeCurrent().
1757 */
1758 static EGLBoolean
1759 dri2_make_current(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *dsurf,
1760 _EGLSurface *rsurf, _EGLContext *ctx)
1761 {
1762 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1763 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1764 _EGLDisplay *old_disp = NULL;
1765 struct dri2_egl_display *old_dri2_dpy = NULL;
1766 _EGLContext *old_ctx;
1767 _EGLSurface *old_dsurf, *old_rsurf;
1768 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1769 __DRIdrawable *ddraw, *rdraw;
1770 __DRIcontext *cctx;
1771 EGLBoolean unbind;
1772
1773 if (!dri2_dpy)
1774 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1775
1776 /* make new bindings */
1777 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf)) {
1778 /* _eglBindContext already sets the EGL error (in _eglCheckMakeCurrent) */
1779 return EGL_FALSE;
1780 }
1781
1782 if (old_ctx) {
1783 old_disp = old_ctx->Resource.Display;
1784 old_dri2_dpy = dri2_egl_display(old_disp);
1785 }
1786
1787 /* flush before context switch */
1788 if (old_ctx)
1789 dri2_gl_flush();
1790
1791 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1792 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1793 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1794
1795 if (old_ctx) {
1796 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1797
1798 if (old_dsurf)
1799 dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
1800
1801 /* Disable shared buffer mode */
1802 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1803 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1804 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, false);
1805 }
1806
1807 dri2_dpy->core->unbindContext(old_cctx);
1808 }
1809
1810 unbind = (cctx == NULL && ddraw == NULL && rdraw == NULL);
1811
1812 if (!unbind && !dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1813 /* undo the previous _eglBindContext */
1814 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1815 assert(&dri2_ctx->base == ctx &&
1816 tmp_dsurf == dsurf &&
1817 tmp_rsurf == rsurf);
1818
1819 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1820 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1821 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
1822 }
1823
1824 _eglPutSurface(dsurf);
1825 _eglPutSurface(rsurf);
1826 _eglPutContext(ctx);
1827
1828 _eglPutSurface(old_dsurf);
1829 _eglPutSurface(old_rsurf);
1830 _eglPutContext(old_ctx);
1831
1832 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1833 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1834 * as EGL_SUCCESS.
1835 */
1836 return _eglError(EGL_BAD_MATCH, "eglMakeCurrent");
1837 }
1838
1839 dri2_destroy_surface(drv, disp, old_dsurf);
1840 dri2_destroy_surface(drv, disp, old_rsurf);
1841
1842 if (!unbind)
1843 dri2_dpy->ref_count++;
1844
1845 if (old_ctx) {
1846 dri2_destroy_context(drv, disp, old_ctx);
1847 dri2_display_release(old_disp);
1848 }
1849
1850 if (dsurf && _eglSurfaceHasMutableRenderBuffer(dsurf) &&
1851 dri2_dpy->vtbl->set_shared_buffer_mode) {
1852 /* Always update the shared buffer mode. This is obviously needed when
1853 * the active EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. When
1854 * EGL_RENDER_BUFFER is EGL_BACK_BUFFER, the update protects us in the
1855 * case where external non-EGL API may have changed window's shared
1856 * buffer mode since we last saw it.
1857 */
1858 bool mode = (dsurf->ActiveRenderBuffer == EGL_SINGLE_BUFFER);
1859 dri2_dpy->vtbl->set_shared_buffer_mode(disp, dsurf, mode);
1860 }
1861
1862 return EGL_TRUE;
1863 }
1864
1865 __DRIdrawable *
1866 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1867 {
1868 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1869
1870 return dri2_surf->dri_drawable;
1871 }
1872
1873 /*
1874 * Called from eglGetProcAddress() via drv->API.GetProcAddress().
1875 */
1876 static _EGLProc
1877 dri2_get_proc_address(_EGLDriver *drv, const char *procname)
1878 {
1879 return _glapi_get_proc_address(procname);
1880 }
1881
1882 static _EGLSurface*
1883 dri2_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
1884 _EGLConfig *conf, void *native_window,
1885 const EGLint *attrib_list)
1886 {
1887 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1888 return dri2_dpy->vtbl->create_window_surface(drv, disp, conf, native_window,
1889 attrib_list);
1890 }
1891
1892 static _EGLSurface*
1893 dri2_create_pixmap_surface(_EGLDriver *drv, _EGLDisplay *disp,
1894 _EGLConfig *conf, void *native_pixmap,
1895 const EGLint *attrib_list)
1896 {
1897 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1898 if (!dri2_dpy->vtbl->create_pixmap_surface)
1899 return NULL;
1900 return dri2_dpy->vtbl->create_pixmap_surface(drv, disp, conf, native_pixmap,
1901 attrib_list);
1902 }
1903
1904 static _EGLSurface*
1905 dri2_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
1906 _EGLConfig *conf, const EGLint *attrib_list)
1907 {
1908 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1909 return dri2_dpy->vtbl->create_pbuffer_surface(drv, disp, conf, attrib_list);
1910 }
1911
1912 static EGLBoolean
1913 dri2_swap_interval(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1914 EGLint interval)
1915 {
1916 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1917 if (!dri2_dpy->vtbl->swap_interval)
1918 return EGL_TRUE;
1919 return dri2_dpy->vtbl->swap_interval(drv, disp, surf, interval);
1920 }
1921
1922 /**
1923 * Asks the client API to flush any rendering to the drawable so that we can
1924 * do our swapbuffers.
1925 */
1926 void
1927 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1928 {
1929 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1930 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1931
1932 if (dri2_dpy->flush) {
1933 if (dri2_dpy->flush->base.version >= 4) {
1934 /* We know there's a current context because:
1935 *
1936 * "If surface is not bound to the calling thread’s current
1937 * context, an EGL_BAD_SURFACE error is generated."
1938 */
1939 _EGLContext *ctx = _eglGetCurrentContext();
1940 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1941
1942 /* From the EGL 1.4 spec (page 52):
1943 *
1944 * "The contents of ancillary buffers are always undefined
1945 * after calling eglSwapBuffers."
1946 */
1947 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1948 dri_drawable,
1949 __DRI2_FLUSH_DRAWABLE |
1950 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1951 __DRI2_THROTTLE_SWAPBUFFER);
1952 } else {
1953 dri2_dpy->flush->flush(dri_drawable);
1954 }
1955 }
1956 }
1957
1958 static EGLBoolean
1959 dri2_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1960 {
1961 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1962 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1963 _EGLContext *ctx = _eglGetCurrentContext();
1964 EGLBoolean ret;
1965
1966 if (ctx && surf)
1967 dri2_surf_update_fence_fd(ctx, disp, surf);
1968 ret = dri2_dpy->vtbl->swap_buffers(drv, disp, surf);
1969
1970 /* SwapBuffers marks the end of the frame; reset the damage region for
1971 * use again next time.
1972 */
1973 if (ret && dri2_dpy->buffer_damage &&
1974 dri2_dpy->buffer_damage->set_damage_region)
1975 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
1976
1977 return ret;
1978 }
1979
1980 static EGLBoolean
1981 dri2_swap_buffers_with_damage(_EGLDriver *drv, _EGLDisplay *disp,
1982 _EGLSurface *surf,
1983 const EGLint *rects, EGLint n_rects)
1984 {
1985 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1986 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1987 _EGLContext *ctx = _eglGetCurrentContext();
1988 EGLBoolean ret;
1989
1990 if (ctx && surf)
1991 dri2_surf_update_fence_fd(ctx, disp, surf);
1992 ret = dri2_dpy->vtbl->swap_buffers_with_damage(drv, disp, surf,
1993 rects, n_rects);
1994
1995 /* SwapBuffers marks the end of the frame; reset the damage region for
1996 * use again next time.
1997 */
1998 if (ret && dri2_dpy->buffer_damage &&
1999 dri2_dpy->buffer_damage->set_damage_region)
2000 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2001
2002 return ret;
2003 }
2004
2005 static EGLBoolean
2006 dri2_swap_buffers_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2007 EGLint numRects, const EGLint *rects)
2008 {
2009 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2010 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2011 EGLBoolean ret;
2012
2013 ret = dri2_dpy->vtbl->swap_buffers_region(drv, disp, surf, numRects, rects);
2014
2015 /* SwapBuffers marks the end of the frame; reset the damage region for
2016 * use again next time.
2017 */
2018 if (ret && dri2_dpy->buffer_damage &&
2019 dri2_dpy->buffer_damage->set_damage_region)
2020 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2021
2022 return ret;
2023 }
2024
2025 static EGLBoolean
2026 dri2_set_damage_region(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2027 EGLint *rects, EGLint n_rects)
2028 {
2029 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2030 __DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2031
2032 if (!dri2_dpy->buffer_damage || !dri2_dpy->buffer_damage->set_damage_region)
2033 return EGL_FALSE;
2034
2035 dri2_dpy->buffer_damage->set_damage_region(drawable, n_rects, rects);
2036 return EGL_TRUE;
2037 }
2038
2039 static EGLBoolean
2040 dri2_post_sub_buffer(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2041 EGLint x, EGLint y, EGLint width, EGLint height)
2042 {
2043 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2044 return dri2_dpy->vtbl->post_sub_buffer(drv, disp, surf, x, y, width, height);
2045 }
2046
2047 static EGLBoolean
2048 dri2_copy_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2049 void *native_pixmap_target)
2050 {
2051 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2052 return dri2_dpy->vtbl->copy_buffers(drv, disp, surf, native_pixmap_target);
2053 }
2054
2055 static EGLint
2056 dri2_query_buffer_age(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
2057 {
2058 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2059 return dri2_dpy->vtbl->query_buffer_age(drv, disp, surf);
2060 }
2061
2062 static EGLBoolean
2063 dri2_wait_client(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
2064 {
2065 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2066 _EGLSurface *surf = ctx->DrawSurface;
2067 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2068
2069 (void) drv;
2070
2071 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
2072 * we need to copy fake to real here.*/
2073
2074 if (dri2_dpy->flush != NULL)
2075 dri2_dpy->flush->flush(dri_drawable);
2076
2077 return EGL_TRUE;
2078 }
2079
2080 static EGLBoolean
2081 dri2_wait_native(_EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
2082 {
2083 (void) drv;
2084 (void) disp;
2085
2086 if (engine != EGL_CORE_NATIVE_ENGINE)
2087 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
2088 /* glXWaitX(); */
2089
2090 return EGL_TRUE;
2091 }
2092
2093 static EGLBoolean
2094 dri2_bind_tex_image(_EGLDriver *drv,
2095 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2096 {
2097 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2098 struct dri2_egl_context *dri2_ctx;
2099 _EGLContext *ctx;
2100 GLint format, target;
2101 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2102
2103 ctx = _eglGetCurrentContext();
2104 dri2_ctx = dri2_egl_context(ctx);
2105
2106 if (!_eglBindTexImage(drv, disp, surf, buffer))
2107 return EGL_FALSE;
2108
2109 switch (surf->TextureFormat) {
2110 case EGL_TEXTURE_RGB:
2111 format = __DRI_TEXTURE_FORMAT_RGB;
2112 break;
2113 case EGL_TEXTURE_RGBA:
2114 format = __DRI_TEXTURE_FORMAT_RGBA;
2115 break;
2116 default:
2117 assert(!"Unexpected texture format in dri2_bind_tex_image()");
2118 format = __DRI_TEXTURE_FORMAT_RGBA;
2119 }
2120
2121 switch (surf->TextureTarget) {
2122 case EGL_TEXTURE_2D:
2123 target = GL_TEXTURE_2D;
2124 break;
2125 default:
2126 target = GL_TEXTURE_2D;
2127 assert(!"Unexpected texture target in dri2_bind_tex_image()");
2128 }
2129
2130 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
2131 target, format,
2132 dri_drawable);
2133
2134 return EGL_TRUE;
2135 }
2136
2137 static EGLBoolean
2138 dri2_release_tex_image(_EGLDriver *drv,
2139 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2140 {
2141 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2142 struct dri2_egl_context *dri2_ctx;
2143 _EGLContext *ctx;
2144 GLint target;
2145 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2146
2147 ctx = _eglGetCurrentContext();
2148 dri2_ctx = dri2_egl_context(ctx);
2149
2150 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
2151 return EGL_FALSE;
2152
2153 switch (surf->TextureTarget) {
2154 case EGL_TEXTURE_2D:
2155 target = GL_TEXTURE_2D;
2156 break;
2157 default:
2158 assert(!"missing texture target");
2159 }
2160
2161 if (dri2_dpy->tex_buffer->base.version >= 3 &&
2162 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
2163 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
2164 target, dri_drawable);
2165 }
2166
2167 return EGL_TRUE;
2168 }
2169
2170 static _EGLImage*
2171 dri2_create_image(_EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx,
2172 EGLenum target, EGLClientBuffer buffer,
2173 const EGLint *attr_list)
2174 {
2175 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2176 return dri2_dpy->vtbl->create_image(drv, disp, ctx, target, buffer,
2177 attr_list);
2178 }
2179
2180 static _EGLImage *
2181 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
2182 {
2183 struct dri2_egl_image *dri2_img;
2184
2185 if (dri_image == NULL) {
2186 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2187 return NULL;
2188 }
2189
2190 dri2_img = malloc(sizeof *dri2_img);
2191 if (!dri2_img) {
2192 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2193 return NULL;
2194 }
2195
2196 _eglInitImage(&dri2_img->base, disp);
2197
2198 dri2_img->dri_image = dri_image;
2199
2200 return &dri2_img->base;
2201 }
2202
2203 /**
2204 * Translate a DRI Image extension error code into an EGL error code.
2205 */
2206 static EGLint
2207 egl_error_from_dri_image_error(int dri_error)
2208 {
2209 switch (dri_error) {
2210 case __DRI_IMAGE_ERROR_SUCCESS:
2211 return EGL_SUCCESS;
2212 case __DRI_IMAGE_ERROR_BAD_ALLOC:
2213 return EGL_BAD_ALLOC;
2214 case __DRI_IMAGE_ERROR_BAD_MATCH:
2215 return EGL_BAD_MATCH;
2216 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
2217 return EGL_BAD_PARAMETER;
2218 case __DRI_IMAGE_ERROR_BAD_ACCESS:
2219 return EGL_BAD_ACCESS;
2220 default:
2221 assert(!"unknown dri_error code");
2222 return EGL_BAD_ALLOC;
2223 }
2224 }
2225
2226 static _EGLImage *
2227 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
2228 EGLClientBuffer buffer,
2229 const EGLint *attr_list)
2230 {
2231 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2232 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2233 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
2234 __DRIimage *dri_image;
2235
2236 if (renderbuffer == 0) {
2237 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2238 return EGL_NO_IMAGE_KHR;
2239 }
2240
2241 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
2242 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2243 return EGL_NO_IMAGE_KHR;
2244 }
2245
2246 if (dri2_dpy->image->base.version >= 17 &&
2247 dri2_dpy->image->createImageFromRenderbuffer2) {
2248 unsigned error = ~0;
2249
2250 dri_image = dri2_dpy->image->createImageFromRenderbuffer2(
2251 dri2_ctx->dri_context, renderbuffer, NULL, &error);
2252
2253 assert(!!dri_image == (error == __DRI_IMAGE_ERROR_SUCCESS));
2254
2255 if (!dri_image) {
2256 _eglError(egl_error_from_dri_image_error(error), "dri2_create_image_khr");
2257 return EGL_NO_IMAGE_KHR;
2258 }
2259 } else {
2260 dri_image = dri2_dpy->image->createImageFromRenderbuffer(
2261 dri2_ctx->dri_context, renderbuffer, NULL);
2262 if (!dri_image) {
2263 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2264 return EGL_NO_IMAGE_KHR;
2265 }
2266 }
2267
2268 return dri2_create_image_from_dri(disp, dri_image);
2269 }
2270
2271 #ifdef HAVE_WAYLAND_PLATFORM
2272
2273 /* This structure describes how a wl_buffer maps to one or more
2274 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
2275 * offsets and strides of the planes in the buffer. This table maps a
2276 * wl_drm format code to a description of the planes in the buffer
2277 * that lets us create a __DRIimage for each of the planes. */
2278
2279 static const struct wl_drm_components_descriptor {
2280 uint32_t dri_components;
2281 EGLint components;
2282 int nplanes;
2283 } wl_drm_components[] = {
2284 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
2285 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
2286 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
2287 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
2288 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
2289 };
2290
2291 static _EGLImage *
2292 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2293 EGLClientBuffer _buffer,
2294 const EGLint *attr_list)
2295 {
2296 struct wl_drm_buffer *buffer;
2297 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2298 const struct wl_drm_components_descriptor *f;
2299 __DRIimage *dri_image;
2300 _EGLImageAttribs attrs;
2301 int32_t plane;
2302
2303 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
2304 (struct wl_resource *) _buffer);
2305 if (!buffer)
2306 return NULL;
2307
2308 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2309 return NULL;
2310
2311 plane = attrs.PlaneWL;
2312 f = buffer->driver_format;
2313 if (plane < 0 || plane >= f->nplanes) {
2314 _eglError(EGL_BAD_PARAMETER,
2315 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
2316 return NULL;
2317 }
2318
2319 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
2320 if (dri_image == NULL && plane == 0)
2321 dri_image = dri2_dpy->image->dupImage(buffer->driver_buffer, NULL);
2322 if (dri_image == NULL) {
2323 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
2324 return NULL;
2325 }
2326
2327 return dri2_create_image_from_dri(disp, dri_image);
2328 }
2329 #endif
2330
2331 static EGLBoolean
2332 dri2_get_sync_values_chromium(_EGLDisplay *disp, _EGLSurface *surf,
2333 EGLuint64KHR *ust, EGLuint64KHR *msc,
2334 EGLuint64KHR *sbc)
2335 {
2336 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2337 return dri2_dpy->vtbl->get_sync_values(disp, surf, ust, msc, sbc);
2338 }
2339
2340 /**
2341 * Set the error code after a call to
2342 * dri2_egl_image::dri_image::createImageFromTexture.
2343 */
2344 static void
2345 dri2_create_image_khr_texture_error(int dri_error)
2346 {
2347 EGLint egl_error = egl_error_from_dri_image_error(dri_error);
2348
2349 if (egl_error != EGL_SUCCESS)
2350 _eglError(egl_error, "dri2_create_image_khr_texture");
2351 }
2352
2353 static _EGLImage *
2354 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
2355 EGLenum target,
2356 EGLClientBuffer buffer,
2357 const EGLint *attr_list)
2358 {
2359 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2360 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2361 struct dri2_egl_image *dri2_img;
2362 GLuint texture = (GLuint) (uintptr_t) buffer;
2363 _EGLImageAttribs attrs;
2364 GLuint depth;
2365 GLenum gl_target;
2366 unsigned error;
2367
2368 if (texture == 0) {
2369 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2370 return EGL_NO_IMAGE_KHR;
2371 }
2372
2373 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2374 return EGL_NO_IMAGE_KHR;
2375
2376 switch (target) {
2377 case EGL_GL_TEXTURE_2D_KHR:
2378 if (!disp->Extensions.KHR_gl_texture_2D_image) {
2379 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2380 return EGL_NO_IMAGE_KHR;
2381 }
2382 depth = 0;
2383 gl_target = GL_TEXTURE_2D;
2384 break;
2385 case EGL_GL_TEXTURE_3D_KHR:
2386 if (!disp->Extensions.KHR_gl_texture_3D_image) {
2387 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2388 return EGL_NO_IMAGE_KHR;
2389 }
2390
2391 depth = attrs.GLTextureZOffset;
2392 gl_target = GL_TEXTURE_3D;
2393 break;
2394 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2395 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2396 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2397 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2398 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2399 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2400 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
2401 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2402 return EGL_NO_IMAGE_KHR;
2403 }
2404
2405 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
2406 gl_target = GL_TEXTURE_CUBE_MAP;
2407 break;
2408 default:
2409 unreachable("Unexpected target in dri2_create_image_khr_texture()");
2410 return EGL_NO_IMAGE_KHR;
2411 }
2412
2413 dri2_img = malloc(sizeof *dri2_img);
2414 if (!dri2_img) {
2415 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2416 return EGL_NO_IMAGE_KHR;
2417 }
2418
2419 _eglInitImage(&dri2_img->base, disp);
2420
2421 dri2_img->dri_image =
2422 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
2423 gl_target,
2424 texture,
2425 depth,
2426 attrs.GLTextureLevel,
2427 &error,
2428 dri2_img);
2429 dri2_create_image_khr_texture_error(error);
2430
2431 if (!dri2_img->dri_image) {
2432 free(dri2_img);
2433 return EGL_NO_IMAGE_KHR;
2434 }
2435 return &dri2_img->base;
2436 }
2437
2438 static EGLBoolean
2439 dri2_query_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2440 EGLint attribute, EGLint *value)
2441 {
2442 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2443 if (!dri2_dpy->vtbl->query_surface)
2444 return _eglQuerySurface(drv, disp, surf, attribute, value);
2445 return dri2_dpy->vtbl->query_surface(drv, disp, surf, attribute, value);
2446 }
2447
2448 static struct wl_buffer*
2449 dri2_create_wayland_buffer_from_image(_EGLDriver *drv, _EGLDisplay *disp,
2450 _EGLImage *img)
2451 {
2452 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2453 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, disp, img);
2454 }
2455
2456 #ifdef HAVE_LIBDRM
2457 static _EGLImage *
2458 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2459 EGLClientBuffer buffer, const EGLint *attr_list)
2460 {
2461 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2462 EGLint format, name, pitch;
2463 _EGLImageAttribs attrs;
2464 __DRIimage *dri_image;
2465
2466 name = (EGLint) (uintptr_t) buffer;
2467
2468 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2469 return NULL;
2470
2471 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2472 attrs.DRMBufferStrideMESA <= 0) {
2473 _eglError(EGL_BAD_PARAMETER,
2474 "bad width, height or stride");
2475 return NULL;
2476 }
2477
2478 switch (attrs.DRMBufferFormatMESA) {
2479 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2480 format = __DRI_IMAGE_FORMAT_ARGB8888;
2481 pitch = attrs.DRMBufferStrideMESA;
2482 break;
2483 default:
2484 _eglError(EGL_BAD_PARAMETER,
2485 "dri2_create_image_khr: unsupported pixmap depth");
2486 return NULL;
2487 }
2488
2489 dri_image =
2490 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2491 attrs.Width,
2492 attrs.Height,
2493 format,
2494 name,
2495 pitch,
2496 NULL);
2497
2498 return dri2_create_image_from_dri(disp, dri_image);
2499 }
2500
2501 static EGLBoolean
2502 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2503 {
2504 /**
2505 * The spec says:
2506 *
2507 * "Required attributes and their values are as follows:
2508 *
2509 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2510 *
2511 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2512 * by drm_fourcc.h and used as the pixel_format parameter of the
2513 * drm_mode_fb_cmd2 ioctl."
2514 *
2515 * and
2516 *
2517 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2518 * incomplete, EGL_BAD_PARAMETER is generated."
2519 */
2520 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2521 !attrs->DMABufFourCC.IsPresent)
2522 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2523
2524 /**
2525 * Also:
2526 *
2527 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2528 * specified for a plane's pitch or offset isn't supported by EGL,
2529 * EGL_BAD_ACCESS is generated."
2530 */
2531 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2532 if (attrs->DMABufPlanePitches[i].IsPresent &&
2533 attrs->DMABufPlanePitches[i].Value <= 0)
2534 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2535 }
2536
2537 /**
2538 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2539 * attribute values may be given.
2540 *
2541 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2542 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2543 */
2544 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2545 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2546 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2547 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2548 }
2549
2550 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2551 * mandate it, we only accept the same modifier across all planes. */
2552 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2553 if (attrs->DMABufPlaneFds[i].IsPresent) {
2554 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2555 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2556 (attrs->DMABufPlaneModifiersLo[0].Value !=
2557 attrs->DMABufPlaneModifiersLo[i].Value) ||
2558 (attrs->DMABufPlaneModifiersHi[0].Value !=
2559 attrs->DMABufPlaneModifiersHi[i].Value))
2560 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2561 }
2562 }
2563
2564 return EGL_TRUE;
2565 }
2566
2567 /* Returns the total number of planes for the format or zero if it isn't a
2568 * valid fourcc format.
2569 */
2570 static unsigned
2571 dri2_num_fourcc_format_planes(EGLint format)
2572 {
2573 switch (format) {
2574 case DRM_FORMAT_R8:
2575 case DRM_FORMAT_RG88:
2576 case DRM_FORMAT_GR88:
2577 case DRM_FORMAT_R16:
2578 case DRM_FORMAT_GR1616:
2579 case DRM_FORMAT_RGB332:
2580 case DRM_FORMAT_BGR233:
2581 case DRM_FORMAT_XRGB4444:
2582 case DRM_FORMAT_XBGR4444:
2583 case DRM_FORMAT_RGBX4444:
2584 case DRM_FORMAT_BGRX4444:
2585 case DRM_FORMAT_ARGB4444:
2586 case DRM_FORMAT_ABGR4444:
2587 case DRM_FORMAT_RGBA4444:
2588 case DRM_FORMAT_BGRA4444:
2589 case DRM_FORMAT_XRGB1555:
2590 case DRM_FORMAT_XBGR1555:
2591 case DRM_FORMAT_RGBX5551:
2592 case DRM_FORMAT_BGRX5551:
2593 case DRM_FORMAT_ARGB1555:
2594 case DRM_FORMAT_ABGR1555:
2595 case DRM_FORMAT_RGBA5551:
2596 case DRM_FORMAT_BGRA5551:
2597 case DRM_FORMAT_RGB565:
2598 case DRM_FORMAT_BGR565:
2599 case DRM_FORMAT_RGB888:
2600 case DRM_FORMAT_BGR888:
2601 case DRM_FORMAT_XRGB8888:
2602 case DRM_FORMAT_XBGR8888:
2603 case DRM_FORMAT_RGBX8888:
2604 case DRM_FORMAT_BGRX8888:
2605 case DRM_FORMAT_ARGB8888:
2606 case DRM_FORMAT_ABGR8888:
2607 case DRM_FORMAT_RGBA8888:
2608 case DRM_FORMAT_BGRA8888:
2609 case DRM_FORMAT_XRGB2101010:
2610 case DRM_FORMAT_XBGR2101010:
2611 case DRM_FORMAT_RGBX1010102:
2612 case DRM_FORMAT_BGRX1010102:
2613 case DRM_FORMAT_ARGB2101010:
2614 case DRM_FORMAT_ABGR2101010:
2615 case DRM_FORMAT_RGBA1010102:
2616 case DRM_FORMAT_BGRA1010102:
2617 case DRM_FORMAT_XBGR16161616F:
2618 case DRM_FORMAT_ABGR16161616F:
2619 case DRM_FORMAT_YUYV:
2620 case DRM_FORMAT_YVYU:
2621 case DRM_FORMAT_UYVY:
2622 case DRM_FORMAT_VYUY:
2623 case DRM_FORMAT_AYUV:
2624 case DRM_FORMAT_XYUV8888:
2625 return 1;
2626
2627 case DRM_FORMAT_NV12:
2628 case DRM_FORMAT_NV21:
2629 case DRM_FORMAT_NV16:
2630 case DRM_FORMAT_NV61:
2631 case DRM_FORMAT_P010:
2632 case DRM_FORMAT_P012:
2633 case DRM_FORMAT_P016:
2634 return 2;
2635
2636 case DRM_FORMAT_YUV410:
2637 case DRM_FORMAT_YVU410:
2638 case DRM_FORMAT_YUV411:
2639 case DRM_FORMAT_YVU411:
2640 case DRM_FORMAT_YUV420:
2641 case DRM_FORMAT_YVU420:
2642 case DRM_FORMAT_YUV422:
2643 case DRM_FORMAT_YVU422:
2644 case DRM_FORMAT_YUV444:
2645 case DRM_FORMAT_YVU444:
2646 return 3;
2647
2648 default:
2649 return 0;
2650 }
2651 }
2652
2653 /* Returns the total number of file descriptors. Zero indicates an error. */
2654 static unsigned
2655 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2656 {
2657 unsigned plane_n = dri2_num_fourcc_format_planes(attrs->DMABufFourCC.Value);
2658 if (plane_n == 0) {
2659 _eglError(EGL_BAD_MATCH, "unknown drm fourcc format");
2660 return 0;
2661 }
2662
2663 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2664 /**
2665 * The modifiers extension spec says:
2666 *
2667 * "Modifiers may modify any attribute of a buffer import, including
2668 * but not limited to adding extra planes to a format which
2669 * otherwise does not have those planes. As an example, a modifier
2670 * may add a plane for an external compression buffer to a
2671 * single-plane format. The exact meaning and effect of any
2672 * modifier is canonically defined by drm_fourcc.h, not as part of
2673 * this extension."
2674 */
2675 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2676 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2677 plane_n = i + 1;
2678 }
2679 }
2680
2681 /**
2682 * The spec says:
2683 *
2684 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2685 * incomplete, EGL_BAD_PARAMETER is generated."
2686 */
2687 for (unsigned i = 0; i < plane_n; ++i) {
2688 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2689 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2690 !attrs->DMABufPlanePitches[i].IsPresent) {
2691 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2692 return 0;
2693 }
2694 }
2695
2696 /**
2697 * The spec also says:
2698 *
2699 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2700 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2701 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2702 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2703 */
2704 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2705 if (attrs->DMABufPlaneFds[i].IsPresent ||
2706 attrs->DMABufPlaneOffsets[i].IsPresent ||
2707 attrs->DMABufPlanePitches[i].IsPresent) {
2708 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2709 return 0;
2710 }
2711 }
2712
2713 return plane_n;
2714 }
2715
2716 static EGLBoolean
2717 dri2_query_dma_buf_formats(_EGLDriver *drv, _EGLDisplay *disp,
2718 EGLint max, EGLint *formats, EGLint *count)
2719 {
2720 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2721 if (max < 0 || (max > 0 && formats == NULL))
2722 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2723
2724 if (dri2_dpy->image->base.version < 15 ||
2725 dri2_dpy->image->queryDmaBufFormats == NULL)
2726 return EGL_FALSE;
2727
2728 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2729 formats, count))
2730 return EGL_FALSE;
2731
2732 if (max > 0) {
2733 /* Assert that all of the formats returned are actually fourcc formats.
2734 * Some day, if we want the internal interface function to be able to
2735 * return the fake fourcc formats defined in dri_interface.h, we'll have
2736 * to do something more clever here to pair the list down to just real
2737 * fourcc formats so that we don't leak the fake internal ones.
2738 */
2739 for (int i = 0; i < *count; i++) {
2740 assert(dri2_num_fourcc_format_planes(formats[i]) > 0);
2741 }
2742 }
2743
2744 return EGL_TRUE;
2745 }
2746
2747 static EGLBoolean
2748 dri2_query_dma_buf_modifiers(_EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2749 EGLint max, EGLuint64KHR *modifiers,
2750 EGLBoolean *external_only, EGLint *count)
2751 {
2752 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2753
2754 if (dri2_num_fourcc_format_planes(format) == 0)
2755 return _eglError(EGL_BAD_PARAMETER, "invalid fourcc format");
2756
2757 if (max < 0)
2758 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2759
2760 if (max > 0 && modifiers == NULL)
2761 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2762
2763 if (dri2_dpy->image->base.version < 15 ||
2764 dri2_dpy->image->queryDmaBufModifiers == NULL)
2765 return EGL_FALSE;
2766
2767 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2768 max, modifiers,
2769 (unsigned int *) external_only,
2770 count) == false)
2771 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2772
2773 return EGL_TRUE;
2774 }
2775
2776 /**
2777 * The spec says:
2778 *
2779 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2780 * EGL will take a reference to the dma_buf(s) which it will release at any
2781 * time while the EGLDisplay is initialized. It is the responsibility of the
2782 * application to close the dma_buf file descriptors."
2783 *
2784 * Therefore we must never close or otherwise modify the file descriptors.
2785 */
2786 _EGLImage *
2787 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2788 EGLClientBuffer buffer, const EGLint *attr_list)
2789 {
2790 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2791 _EGLImage *res;
2792 _EGLImageAttribs attrs;
2793 __DRIimage *dri_image;
2794 unsigned num_fds;
2795 int fds[DMA_BUF_MAX_PLANES];
2796 int pitches[DMA_BUF_MAX_PLANES];
2797 int offsets[DMA_BUF_MAX_PLANES];
2798 uint64_t modifier;
2799 bool has_modifier = false;
2800 unsigned error;
2801
2802 /**
2803 * The spec says:
2804 *
2805 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2806 * error EGL_BAD_PARAMETER is generated."
2807 */
2808 if (buffer != NULL) {
2809 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2810 return NULL;
2811 }
2812
2813 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2814 return NULL;
2815
2816 if (!dri2_check_dma_buf_attribs(&attrs))
2817 return NULL;
2818
2819 num_fds = dri2_check_dma_buf_format(&attrs);
2820 if (!num_fds)
2821 return NULL;
2822
2823 for (unsigned i = 0; i < num_fds; ++i) {
2824 fds[i] = attrs.DMABufPlaneFds[i].Value;
2825 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2826 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2827 }
2828
2829 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2830 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2831 * attrs.DMABufPlaneModifiersHi[0] */
2832 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2833 modifier = combine_u32_into_u64(attrs.DMABufPlaneModifiersHi[0].Value,
2834 attrs.DMABufPlaneModifiersLo[0].Value);
2835 has_modifier = true;
2836 }
2837
2838 if (has_modifier) {
2839 if (dri2_dpy->image->base.version < 15 ||
2840 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2841 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2842 return EGL_NO_IMAGE_KHR;
2843 }
2844 dri_image =
2845 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2846 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2847 modifier, fds, num_fds, pitches, offsets,
2848 attrs.DMABufYuvColorSpaceHint.Value,
2849 attrs.DMABufSampleRangeHint.Value,
2850 attrs.DMABufChromaHorizontalSiting.Value,
2851 attrs.DMABufChromaVerticalSiting.Value,
2852 &error,
2853 NULL);
2854 }
2855 else {
2856 dri_image =
2857 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2858 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2859 fds, num_fds, pitches, offsets,
2860 attrs.DMABufYuvColorSpaceHint.Value,
2861 attrs.DMABufSampleRangeHint.Value,
2862 attrs.DMABufChromaHorizontalSiting.Value,
2863 attrs.DMABufChromaVerticalSiting.Value,
2864 &error,
2865 NULL);
2866 }
2867 dri2_create_image_khr_texture_error(error);
2868
2869 if (!dri_image)
2870 return EGL_NO_IMAGE_KHR;
2871
2872 res = dri2_create_image_from_dri(disp, dri_image);
2873
2874 return res;
2875 }
2876 static _EGLImage *
2877 dri2_create_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2878 const EGLint *attr_list)
2879 {
2880 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2881 struct dri2_egl_image *dri2_img;
2882 _EGLImageAttribs attrs;
2883 unsigned int dri_use, valid_mask;
2884 int format;
2885
2886 (void) drv;
2887
2888 if (!attr_list) {
2889 _eglError(EGL_BAD_PARAMETER, __func__);
2890 return EGL_NO_IMAGE_KHR;
2891 }
2892
2893 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2894 return EGL_NO_IMAGE_KHR;
2895
2896 if (attrs.Width <= 0 || attrs.Height <= 0) {
2897 _eglError(EGL_BAD_PARAMETER, __func__);
2898 return EGL_NO_IMAGE_KHR;
2899 }
2900
2901 switch (attrs.DRMBufferFormatMESA) {
2902 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2903 format = __DRI_IMAGE_FORMAT_ARGB8888;
2904 break;
2905 default:
2906 _eglError(EGL_BAD_PARAMETER, __func__);
2907 return EGL_NO_IMAGE_KHR;
2908 }
2909
2910 valid_mask =
2911 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2912 EGL_DRM_BUFFER_USE_SHARE_MESA |
2913 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2914 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2915 _eglError(EGL_BAD_PARAMETER, __func__);
2916 return EGL_NO_IMAGE_KHR;
2917 }
2918
2919 dri_use = 0;
2920 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2921 dri_use |= __DRI_IMAGE_USE_SHARE;
2922 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2923 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2924 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2925 dri_use |= __DRI_IMAGE_USE_CURSOR;
2926
2927 dri2_img = malloc(sizeof *dri2_img);
2928 if (!dri2_img) {
2929 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2930 return EGL_NO_IMAGE_KHR;
2931 }
2932
2933 _eglInitImage(&dri2_img->base, disp);
2934
2935 dri2_img->dri_image =
2936 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2937 attrs.Width, attrs.Height,
2938 format, dri_use, dri2_img);
2939 if (dri2_img->dri_image == NULL) {
2940 free(dri2_img);
2941 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2942 return EGL_NO_IMAGE_KHR;
2943 }
2944
2945 return &dri2_img->base;
2946 }
2947
2948 static EGLBoolean
2949 dri2_export_drm_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2950 EGLint *name, EGLint *handle, EGLint *stride)
2951 {
2952 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2953 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2954
2955 (void) drv;
2956
2957 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
2958 __DRI_IMAGE_ATTRIB_NAME, name))
2959 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
2960
2961 if (handle)
2962 dri2_dpy->image->queryImage(dri2_img->dri_image,
2963 __DRI_IMAGE_ATTRIB_HANDLE, handle);
2964
2965 if (stride)
2966 dri2_dpy->image->queryImage(dri2_img->dri_image,
2967 __DRI_IMAGE_ATTRIB_STRIDE, stride);
2968
2969 return EGL_TRUE;
2970 }
2971
2972 /**
2973 * Checks if we can support EGL_MESA_image_dma_buf_export on this image.
2974
2975 * The spec provides a boolean return for the driver to reject exporting for
2976 * basically any reason, but doesn't specify any particular error cases. For
2977 * now, we just fail if we don't have a DRM fourcc for the format.
2978 */
2979 static bool
2980 dri2_can_export_dma_buf_image(_EGLDisplay *disp, _EGLImage *img)
2981 {
2982 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2983 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2984 EGLint fourcc;
2985
2986 if (!dri2_dpy->image->queryImage(dri2_img->dri_image,
2987 __DRI_IMAGE_ATTRIB_FOURCC, &fourcc)) {
2988 return false;
2989 }
2990
2991 return true;
2992 }
2993
2994 static EGLBoolean
2995 dri2_export_dma_buf_image_query_mesa(_EGLDriver *drv, _EGLDisplay *disp,
2996 _EGLImage *img,
2997 EGLint *fourcc, EGLint *nplanes,
2998 EGLuint64KHR *modifiers)
2999 {
3000 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3001 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3002 int num_planes;
3003
3004 (void) drv;
3005
3006 if (!dri2_can_export_dma_buf_image(disp, img))
3007 return EGL_FALSE;
3008
3009 dri2_dpy->image->queryImage(dri2_img->dri_image,
3010 __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes);
3011 if (nplanes)
3012 *nplanes = num_planes;
3013
3014 if (fourcc)
3015 dri2_dpy->image->queryImage(dri2_img->dri_image,
3016 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
3017
3018 if (modifiers) {
3019 int mod_hi, mod_lo;
3020 uint64_t modifier = DRM_FORMAT_MOD_INVALID;
3021 bool query;
3022
3023 query = dri2_dpy->image->queryImage(dri2_img->dri_image,
3024 __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
3025 &mod_hi);
3026 query &= dri2_dpy->image->queryImage(dri2_img->dri_image,
3027 __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
3028 &mod_lo);
3029 if (query)
3030 modifier = combine_u32_into_u64 (mod_hi, mod_lo);
3031
3032 for (int i = 0; i < num_planes; i++)
3033 modifiers[i] = modifier;
3034 }
3035
3036 return EGL_TRUE;
3037 }
3038
3039 static EGLBoolean
3040 dri2_export_dma_buf_image_mesa(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
3041 int *fds, EGLint *strides, EGLint *offsets)
3042 {
3043 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3044 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3045 EGLint nplanes;
3046
3047 (void) drv;
3048
3049 if (!dri2_can_export_dma_buf_image(disp, img))
3050 return EGL_FALSE;
3051
3052 /* EGL_MESA_image_dma_buf_export spec says:
3053 * "If the number of fds is less than the number of planes, then
3054 * subsequent fd slots should contain -1."
3055 */
3056 if (fds) {
3057 /* Query nplanes so that we know how big the given array is. */
3058 dri2_dpy->image->queryImage(dri2_img->dri_image,
3059 __DRI_IMAGE_ATTRIB_NUM_PLANES, &nplanes);
3060 memset(fds, -1, nplanes * sizeof(int));
3061 }
3062
3063 /* rework later to provide multiple fds/strides/offsets */
3064 if (fds)
3065 dri2_dpy->image->queryImage(dri2_img->dri_image,
3066 __DRI_IMAGE_ATTRIB_FD, fds);
3067
3068 if (strides)
3069 dri2_dpy->image->queryImage(dri2_img->dri_image,
3070 __DRI_IMAGE_ATTRIB_STRIDE, strides);
3071
3072 if (offsets) {
3073 int img_offset;
3074 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
3075 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
3076 if (ret)
3077 offsets[0] = img_offset;
3078 else
3079 offsets[0] = 0;
3080 }
3081
3082 return EGL_TRUE;
3083 }
3084
3085 #endif
3086
3087 _EGLImage *
3088 dri2_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
3089 _EGLContext *ctx, EGLenum target,
3090 EGLClientBuffer buffer, const EGLint *attr_list)
3091 {
3092 (void) drv;
3093
3094 switch (target) {
3095 case EGL_GL_TEXTURE_2D_KHR:
3096 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
3097 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
3098 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
3099 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
3100 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
3101 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
3102 case EGL_GL_TEXTURE_3D_KHR:
3103 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
3104 case EGL_GL_RENDERBUFFER_KHR:
3105 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
3106 #ifdef HAVE_LIBDRM
3107 case EGL_DRM_BUFFER_MESA:
3108 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
3109 case EGL_LINUX_DMA_BUF_EXT:
3110 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
3111 #endif
3112 #ifdef HAVE_WAYLAND_PLATFORM
3113 case EGL_WAYLAND_BUFFER_WL:
3114 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
3115 #endif
3116 default:
3117 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
3118 return EGL_NO_IMAGE_KHR;
3119 }
3120 }
3121
3122 static EGLBoolean
3123 dri2_destroy_image_khr(_EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
3124 {
3125 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3126 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
3127
3128 (void) drv;
3129
3130 dri2_dpy->image->destroyImage(dri2_img->dri_image);
3131 free(dri2_img);
3132
3133 return EGL_TRUE;
3134 }
3135
3136 #ifdef HAVE_WAYLAND_PLATFORM
3137
3138 static void
3139 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
3140 struct wl_drm_buffer *buffer)
3141 {
3142 _EGLDisplay *disp = user_data;
3143 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3144 __DRIimage *img;
3145 int dri_components = 0;
3146
3147 if (fd == -1)
3148 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
3149 buffer->width,
3150 buffer->height,
3151 buffer->format,
3152 (int*)&name, 1,
3153 buffer->stride,
3154 buffer->offset,
3155 NULL);
3156 else
3157 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
3158 buffer->width,
3159 buffer->height,
3160 buffer->format,
3161 &fd, 1,
3162 buffer->stride,
3163 buffer->offset,
3164 NULL);
3165
3166 if (img == NULL)
3167 return;
3168
3169 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
3170
3171 buffer->driver_format = NULL;
3172 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
3173 if (wl_drm_components[i].dri_components == dri_components)
3174 buffer->driver_format = &wl_drm_components[i];
3175
3176 if (buffer->driver_format == NULL)
3177 dri2_dpy->image->destroyImage(img);
3178 else
3179 buffer->driver_buffer = img;
3180 }
3181
3182 static void
3183 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
3184 {
3185 _EGLDisplay *disp = user_data;
3186 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3187
3188 dri2_dpy->image->destroyImage(buffer->driver_buffer);
3189 }
3190
3191 static EGLBoolean
3192 dri2_bind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
3193 struct wl_display *wl_dpy)
3194 {
3195 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3196 const struct wayland_drm_callbacks wl_drm_callbacks = {
3197 .authenticate = (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate,
3198 .reference_buffer = dri2_wl_reference_buffer,
3199 .release_buffer = dri2_wl_release_buffer,
3200 .is_format_supported = dri2_wl_is_format_supported
3201 };
3202 int flags = 0;
3203 uint64_t cap;
3204
3205 (void) drv;
3206
3207 if (dri2_dpy->wl_server_drm)
3208 return EGL_FALSE;
3209
3210 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
3211 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
3212 dri2_dpy->image->base.version >= 7 &&
3213 dri2_dpy->image->createImageFromFds != NULL)
3214 flags |= WAYLAND_DRM_PRIME;
3215
3216 dri2_dpy->wl_server_drm =
3217 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
3218 &wl_drm_callbacks, disp, flags);
3219
3220 if (!dri2_dpy->wl_server_drm)
3221 return EGL_FALSE;
3222
3223 #ifdef HAVE_DRM_PLATFORM
3224 /* We have to share the wl_drm instance with gbm, so gbm can convert
3225 * wl_buffers to gbm bos. */
3226 if (dri2_dpy->gbm_dri)
3227 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
3228 #endif
3229
3230 return EGL_TRUE;
3231 }
3232
3233 static EGLBoolean
3234 dri2_unbind_wayland_display_wl(_EGLDriver *drv, _EGLDisplay *disp,
3235 struct wl_display *wl_dpy)
3236 {
3237 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3238
3239 (void) drv;
3240
3241 if (!dri2_dpy->wl_server_drm)
3242 return EGL_FALSE;
3243
3244 wayland_drm_uninit(dri2_dpy->wl_server_drm);
3245 dri2_dpy->wl_server_drm = NULL;
3246
3247 return EGL_TRUE;
3248 }
3249
3250 static EGLBoolean
3251 dri2_query_wayland_buffer_wl(_EGLDriver *drv, _EGLDisplay *disp,
3252 struct wl_resource *buffer_resource,
3253 EGLint attribute, EGLint *value)
3254 {
3255 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3256 struct wl_drm_buffer *buffer;
3257 const struct wl_drm_components_descriptor *format;
3258
3259 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
3260 if (!buffer)
3261 return EGL_FALSE;
3262
3263 format = buffer->driver_format;
3264 switch (attribute) {
3265 case EGL_TEXTURE_FORMAT:
3266 *value = format->components;
3267 return EGL_TRUE;
3268 case EGL_WIDTH:
3269 *value = buffer->width;
3270 return EGL_TRUE;
3271 case EGL_HEIGHT:
3272 *value = buffer->height;
3273 return EGL_TRUE;
3274 }
3275
3276 return EGL_FALSE;
3277 }
3278 #endif
3279
3280 static void
3281 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
3282 {
3283 p_atomic_inc(&sync->refcount);
3284 }
3285
3286 static void
3287 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
3288 struct dri2_egl_sync *dri2_sync)
3289 {
3290 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
3291 switch (dri2_sync->base.Type) {
3292 case EGL_SYNC_REUSABLE_KHR:
3293 cnd_destroy(&dri2_sync->cond);
3294 break;
3295 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3296 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
3297 close(dri2_sync->base.SyncFd);
3298 break;
3299 default:
3300 break;
3301 }
3302
3303 if (dri2_sync->fence)
3304 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
3305
3306 free(dri2_sync);
3307 }
3308 }
3309
3310 static _EGLSync *
3311 dri2_create_sync(_EGLDriver *drv, _EGLDisplay *disp,
3312 EGLenum type, const EGLAttrib *attrib_list)
3313 {
3314 _EGLContext *ctx = _eglGetCurrentContext();
3315 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3316 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3317 struct dri2_egl_sync *dri2_sync;
3318 EGLint ret;
3319 pthread_condattr_t attr;
3320
3321 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
3322 if (!dri2_sync) {
3323 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3324 return NULL;
3325 }
3326
3327 if (!_eglInitSync(&dri2_sync->base, disp, type, attrib_list)) {
3328 free(dri2_sync);
3329 return NULL;
3330 }
3331
3332 switch (type) {
3333 case EGL_SYNC_FENCE_KHR:
3334 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
3335 if (!dri2_sync->fence) {
3336 /* Why did it fail? DRI doesn't return an error code, so we emit
3337 * a generic EGL error that doesn't communicate user error.
3338 */
3339 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3340 free(dri2_sync);
3341 return NULL;
3342 }
3343 break;
3344
3345 case EGL_SYNC_CL_EVENT_KHR:
3346 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
3347 dri2_dpy->dri_screen,
3348 dri2_sync->base.CLEvent);
3349 /* this can only happen if the cl_event passed in is invalid. */
3350 if (!dri2_sync->fence) {
3351 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3352 free(dri2_sync);
3353 return NULL;
3354 }
3355
3356 /* the initial status must be "signaled" if the cl_event is signaled */
3357 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
3358 dri2_sync->fence, 0, 0))
3359 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3360 break;
3361
3362 case EGL_SYNC_REUSABLE_KHR:
3363 /* intialize attr */
3364 ret = pthread_condattr_init(&attr);
3365
3366 if (ret) {
3367 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3368 free(dri2_sync);
3369 return NULL;
3370 }
3371
3372 /* change clock attribute to CLOCK_MONOTONIC */
3373 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
3374
3375 if (ret) {
3376 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3377 free(dri2_sync);
3378 return NULL;
3379 }
3380
3381 ret = pthread_cond_init(&dri2_sync->cond, &attr);
3382
3383 if (ret) {
3384 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3385 free(dri2_sync);
3386 return NULL;
3387 }
3388
3389 /* initial status of reusable sync must be "unsignaled" */
3390 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
3391 break;
3392
3393 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3394 if (dri2_dpy->fence->create_fence_fd) {
3395 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
3396 dri2_ctx->dri_context,
3397 dri2_sync->base.SyncFd);
3398 }
3399 if (!dri2_sync->fence) {
3400 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3401 free(dri2_sync);
3402 return NULL;
3403 }
3404 break;
3405 }
3406
3407 p_atomic_set(&dri2_sync->refcount, 1);
3408 return &dri2_sync->base;
3409 }
3410
3411 static EGLBoolean
3412 dri2_destroy_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3413 {
3414 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3415 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3416 EGLint ret = EGL_TRUE;
3417 EGLint err;
3418
3419 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
3420 * then unlock all threads possibly blocked by the reusable sync before
3421 * destroying it.
3422 */
3423 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
3424 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3425 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3426 /* unblock all threads currently blocked by sync */
3427 err = cnd_broadcast(&dri2_sync->cond);
3428
3429 if (err) {
3430 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
3431 ret = EGL_FALSE;
3432 }
3433 }
3434
3435 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3436
3437 return ret;
3438 }
3439
3440 static EGLint
3441 dri2_dup_native_fence_fd(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3442 {
3443 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3444 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3445
3446 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
3447
3448 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3449 /* try to retrieve the actual native fence fd.. if rendering is
3450 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
3451 */
3452 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
3453 dri2_sync->fence);
3454 }
3455
3456 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3457 /* if native fence fd still not created, return an error: */
3458 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
3459 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
3460 }
3461
3462 return os_dupfd_cloexec(sync->SyncFd);
3463 }
3464
3465 static void
3466 dri2_set_blob_cache_funcs(_EGLDriver *drv, _EGLDisplay *disp,
3467 EGLSetBlobFuncANDROID set,
3468 EGLGetBlobFuncANDROID get)
3469 {
3470 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3471 dri2_dpy->blob->set_cache_funcs(dri2_dpy->dri_screen,
3472 disp->BlobCacheSet,
3473 disp->BlobCacheGet);
3474 }
3475
3476 static EGLint
3477 dri2_client_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3478 EGLint flags, EGLTime timeout)
3479 {
3480 _EGLContext *ctx = _eglGetCurrentContext();
3481 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3482 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3483 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3484 unsigned wait_flags = 0;
3485
3486 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
3487
3488 /* The EGL_KHR_fence_sync spec states:
3489 *
3490 * "If no context is current for the bound API,
3491 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
3492 */
3493 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
3494 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
3495
3496 /* the sync object should take a reference while waiting */
3497 dri2_egl_ref_sync(dri2_sync);
3498
3499 switch (sync->Type) {
3500 case EGL_SYNC_FENCE_KHR:
3501 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3502 case EGL_SYNC_CL_EVENT_KHR:
3503 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
3504 dri2_sync->fence, wait_flags,
3505 timeout))
3506 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3507 else
3508 ret = EGL_TIMEOUT_EXPIRED_KHR;
3509 break;
3510
3511 case EGL_SYNC_REUSABLE_KHR:
3512 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
3513 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
3514 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
3515 dri2_gl_flush();
3516 }
3517
3518 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
3519 if (timeout == EGL_FOREVER_KHR) {
3520 mtx_lock(&dri2_sync->mutex);
3521 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
3522 mtx_unlock(&dri2_sync->mutex);
3523 } else {
3524 /* if reusable sync has not been yet signaled */
3525 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
3526 /* timespecs for cnd_timedwait */
3527 struct timespec current;
3528 struct timespec expire;
3529
3530 /* We override the clock to monotonic when creating the condition
3531 * variable. */
3532 clock_gettime(CLOCK_MONOTONIC, &current);
3533
3534 /* calculating when to expire */
3535 expire.tv_nsec = timeout % 1000000000L;
3536 expire.tv_sec = timeout / 1000000000L;
3537
3538 expire.tv_nsec += current.tv_nsec;
3539 expire.tv_sec += current.tv_sec;
3540
3541 /* expire.nsec now is a number between 0 and 1999999998 */
3542 if (expire.tv_nsec > 999999999L) {
3543 expire.tv_sec++;
3544 expire.tv_nsec -= 1000000000L;
3545 }
3546
3547 mtx_lock(&dri2_sync->mutex);
3548 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3549 mtx_unlock(&dri2_sync->mutex);
3550
3551 if (ret == thrd_busy) {
3552 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3553 ret = EGL_TIMEOUT_EXPIRED_KHR;
3554 } else {
3555 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3556 ret = EGL_FALSE;
3557 }
3558 }
3559 }
3560 }
3561 break;
3562 }
3563 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3564
3565 return ret;
3566 }
3567
3568 static EGLBoolean
3569 dri2_signal_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3570 EGLenum mode)
3571 {
3572 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3573 EGLint ret;
3574
3575 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3576 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3577
3578 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3579 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3580
3581 dri2_sync->base.SyncStatus = mode;
3582
3583 if (mode == EGL_SIGNALED_KHR) {
3584 ret = cnd_broadcast(&dri2_sync->cond);
3585
3586 /* fail to broadcast */
3587 if (ret)
3588 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3589 }
3590
3591 return EGL_TRUE;
3592 }
3593
3594 static EGLint
3595 dri2_server_wait_sync(_EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3596 {
3597 _EGLContext *ctx = _eglGetCurrentContext();
3598 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3599 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3600 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3601
3602 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3603 dri2_sync->fence, 0);
3604 return EGL_TRUE;
3605 }
3606
3607 static int
3608 dri2_interop_query_device_info(_EGLDisplay *disp, _EGLContext *ctx,
3609 struct mesa_glinterop_device_info *out)
3610 {
3611 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3612 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3613
3614 if (!dri2_dpy->interop)
3615 return MESA_GLINTEROP_UNSUPPORTED;
3616
3617 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3618 }
3619
3620 static int
3621 dri2_interop_export_object(_EGLDisplay *disp, _EGLContext *ctx,
3622 struct mesa_glinterop_export_in *in,
3623 struct mesa_glinterop_export_out *out)
3624 {
3625 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3626 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3627
3628 if (!dri2_dpy->interop)
3629 return MESA_GLINTEROP_UNSUPPORTED;
3630
3631 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3632 }
3633
3634 /**
3635 * This is the main entrypoint into the driver, called by libEGL.
3636 * Gets an _EGLDriver object and init its dispatch table.
3637 */
3638 void
3639 _eglInitDriver(_EGLDriver *dri2_drv)
3640 {
3641 dri2_drv->API.Initialize = dri2_initialize;
3642 dri2_drv->API.Terminate = dri2_terminate;
3643 dri2_drv->API.CreateContext = dri2_create_context;
3644 dri2_drv->API.DestroyContext = dri2_destroy_context;
3645 dri2_drv->API.MakeCurrent = dri2_make_current;
3646 dri2_drv->API.CreateWindowSurface = dri2_create_window_surface;
3647 dri2_drv->API.CreatePixmapSurface = dri2_create_pixmap_surface;
3648 dri2_drv->API.CreatePbufferSurface = dri2_create_pbuffer_surface;
3649 dri2_drv->API.DestroySurface = dri2_destroy_surface;
3650 dri2_drv->API.GetProcAddress = dri2_get_proc_address;
3651 dri2_drv->API.WaitClient = dri2_wait_client;
3652 dri2_drv->API.WaitNative = dri2_wait_native;
3653 dri2_drv->API.BindTexImage = dri2_bind_tex_image;
3654 dri2_drv->API.ReleaseTexImage = dri2_release_tex_image;
3655 dri2_drv->API.SwapInterval = dri2_swap_interval;
3656 dri2_drv->API.SwapBuffers = dri2_swap_buffers;
3657 dri2_drv->API.SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage;
3658 dri2_drv->API.SwapBuffersRegionNOK = dri2_swap_buffers_region;
3659 dri2_drv->API.SetDamageRegion = dri2_set_damage_region;
3660 dri2_drv->API.PostSubBufferNV = dri2_post_sub_buffer;
3661 dri2_drv->API.CopyBuffers = dri2_copy_buffers,
3662 dri2_drv->API.QueryBufferAge = dri2_query_buffer_age;
3663 dri2_drv->API.CreateImageKHR = dri2_create_image;
3664 dri2_drv->API.DestroyImageKHR = dri2_destroy_image_khr;
3665 dri2_drv->API.CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image;
3666 dri2_drv->API.QuerySurface = dri2_query_surface;
3667 dri2_drv->API.QueryDriverName = dri2_query_driver_name;
3668 dri2_drv->API.QueryDriverConfig = dri2_query_driver_config;
3669 #ifdef HAVE_LIBDRM
3670 dri2_drv->API.CreateDRMImageMESA = dri2_create_drm_image_mesa;
3671 dri2_drv->API.ExportDRMImageMESA = dri2_export_drm_image_mesa;
3672 dri2_drv->API.ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa;
3673 dri2_drv->API.ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa;
3674 dri2_drv->API.QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats;
3675 dri2_drv->API.QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers;
3676 #endif
3677 #ifdef HAVE_WAYLAND_PLATFORM
3678 dri2_drv->API.BindWaylandDisplayWL = dri2_bind_wayland_display_wl;
3679 dri2_drv->API.UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl;
3680 dri2_drv->API.QueryWaylandBufferWL = dri2_query_wayland_buffer_wl;
3681 #endif
3682 dri2_drv->API.GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium;
3683 dri2_drv->API.CreateSyncKHR = dri2_create_sync;
3684 dri2_drv->API.ClientWaitSyncKHR = dri2_client_wait_sync;
3685 dri2_drv->API.SignalSyncKHR = dri2_signal_sync;
3686 dri2_drv->API.WaitSyncKHR = dri2_server_wait_sync;
3687 dri2_drv->API.DestroySyncKHR = dri2_destroy_sync;
3688 dri2_drv->API.GLInteropQueryDeviceInfo = dri2_interop_query_device_info;
3689 dri2_drv->API.GLInteropExportObject = dri2_interop_export_object;
3690 dri2_drv->API.DupNativeFenceFDANDROID = dri2_dup_native_fence_fd;
3691 dri2_drv->API.SetBlobCacheFuncsANDROID = dri2_set_blob_cache_funcs;
3692 }