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egl: drop unused _EGLDriver from Initialize()
[mesa.git] / src / egl / drivers / dri2 / egl_dri2.c
1 /*
2 * Copyright © 2010 Intel Corporation
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice (including the next
12 * paragraph) shall be included in all copies or substantial portions of the
13 * Software.
14 *
15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
18 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
19 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
20 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
21 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
22 * DEALINGS IN THE SOFTWARE.
23 *
24 * Authors:
25 * Kristian Høgsberg <krh@bitplanet.net>
26 */
27
28 #include <stdbool.h>
29 #include <stdint.h>
30 #include <stdbool.h>
31 #include <stdlib.h>
32 #include <string.h>
33 #include <stdio.h>
34 #include <limits.h>
35 #include <dlfcn.h>
36 #include <fcntl.h>
37 #include <errno.h>
38 #include <unistd.h>
39 #include <c11/threads.h>
40 #include <time.h>
41 #ifdef HAVE_LIBDRM
42 #include <xf86drm.h>
43 #include "drm-uapi/drm_fourcc.h"
44 #endif
45 #include <GL/gl.h>
46 #include <GL/internal/dri_interface.h>
47 #include <sys/types.h>
48 #include <sys/stat.h>
49
50 #ifdef HAVE_WAYLAND_PLATFORM
51 #include <wayland-client.h>
52 #include "wayland-drm.h"
53 #include "wayland-drm-client-protocol.h"
54 #include "linux-dmabuf-unstable-v1-client-protocol.h"
55 #endif
56
57 #ifdef HAVE_X11_PLATFORM
58 #include "X11/Xlibint.h"
59 #endif
60
61 #include "egldefines.h"
62 #include "egl_dri2.h"
63 #include "GL/mesa_glinterop.h"
64 #include "loader/loader.h"
65 #include "util/os_file.h"
66 #include "util/u_atomic.h"
67 #include "util/u_vector.h"
68 #include "mapi/glapi/glapi.h"
69 #include "util/bitscan.h"
70 #include "util/u_math.h"
71
72 /* Additional definitions not yet in the drm_fourcc.h.
73 */
74 #ifndef DRM_FORMAT_P010
75 #define DRM_FORMAT_P010 fourcc_code('P', '0', '1', '0') /* 2x2 subsampled Cb:Cr plane 10 bits per channel */
76 #endif
77
78 #ifndef DRM_FORMAT_P012
79 #define DRM_FORMAT_P012 fourcc_code('P', '0', '1', '2') /* 2x2 subsampled Cb:Cr plane 12 bits per channel */
80 #endif
81
82 #ifndef DRM_FORMAT_P016
83 #define DRM_FORMAT_P016 fourcc_code('P', '0', '1', '6') /* 2x2 subsampled Cb:Cr plane 16 bits per channel */
84 #endif
85
86 #define NUM_ATTRIBS 12
87
88 static const struct dri2_pbuffer_visual {
89 const char *format_name;
90 unsigned int dri_image_format;
91 int rgba_shifts[4];
92 unsigned int rgba_sizes[4];
93 } dri2_pbuffer_visuals[] = {
94 {
95 "ABGR16F",
96 __DRI_IMAGE_FORMAT_ABGR16161616F,
97 { 0, 16, 32, 48 },
98 { 16, 16, 16, 16 }
99 },
100 {
101 "XBGR16F",
102 __DRI_IMAGE_FORMAT_XBGR16161616F,
103 { 0, 16, 32, -1 },
104 { 16, 16, 16, 0 }
105 },
106 {
107 "A2RGB10",
108 __DRI_IMAGE_FORMAT_ARGB2101010,
109 { 20, 10, 0, 30 },
110 { 10, 10, 10, 2 }
111 },
112 {
113 "X2RGB10",
114 __DRI_IMAGE_FORMAT_XRGB2101010,
115 { 20, 10, 0, -1 },
116 { 10, 10, 10, 0 }
117 },
118 {
119 "ARGB8888",
120 __DRI_IMAGE_FORMAT_ARGB8888,
121 { 16, 8, 0, 24 },
122 { 8, 8, 8, 8 }
123 },
124 {
125 "RGB888",
126 __DRI_IMAGE_FORMAT_XRGB8888,
127 { 16, 8, 0, -1 },
128 { 8, 8, 8, 0 }
129 },
130 {
131 "RGB565",
132 __DRI_IMAGE_FORMAT_RGB565,
133 { 11, 5, 0, -1 },
134 { 5, 6, 5, 0 }
135 },
136 };
137
138 static void
139 dri_set_background_context(void *loaderPrivate)
140 {
141 _EGLContext *ctx = _eglGetCurrentContext();
142 _EGLThreadInfo *t = _eglGetCurrentThread();
143
144 _eglBindContextToThread(ctx, t);
145 }
146
147 static void
148 dri2_gl_flush()
149 {
150 static void (*glFlush)(void);
151 static mtx_t glFlushMutex = _MTX_INITIALIZER_NP;
152
153 mtx_lock(&glFlushMutex);
154 if (!glFlush)
155 glFlush = _glapi_get_proc_address("glFlush");
156 mtx_unlock(&glFlushMutex);
157
158 /* if glFlush is not available things are horribly broken */
159 if (!glFlush) {
160 _eglLog(_EGL_WARNING, "DRI2: failed to find glFlush entry point");
161 return;
162 }
163
164 glFlush();
165 }
166
167 static GLboolean
168 dri_is_thread_safe(void *loaderPrivate)
169 {
170 struct dri2_egl_surface *dri2_surf = loaderPrivate;
171 UNUSED _EGLDisplay *display = dri2_surf->base.Resource.Display;
172
173 #ifdef HAVE_X11_PLATFORM
174 Display *xdpy = (Display*)display->PlatformDisplay;
175
176 /* Check Xlib is running in thread safe mode when running on EGL/X11-xlib
177 * platform
178 *
179 * 'lock_fns' is the XLockDisplay function pointer of the X11 display 'dpy'.
180 * It wll be NULL if XInitThreads wasn't called.
181 */
182 if (display->Platform == _EGL_PLATFORM_X11 && xdpy && !xdpy->lock_fns)
183 return false;
184 #endif
185
186 #ifdef HAVE_WAYLAND_PLATFORM
187 if (display->Platform == _EGL_PLATFORM_WAYLAND)
188 return true;
189 #endif
190
191 return true;
192 }
193
194 const __DRIbackgroundCallableExtension background_callable_extension = {
195 .base = { __DRI_BACKGROUND_CALLABLE, 2 },
196
197 .setBackgroundContext = dri_set_background_context,
198 .isThreadSafe = dri_is_thread_safe,
199 };
200
201 const __DRIuseInvalidateExtension use_invalidate = {
202 .base = { __DRI_USE_INVALIDATE, 1 }
203 };
204
205 static void
206 dri2_get_pbuffer_drawable_info(__DRIdrawable * draw,
207 int *x, int *y, int *w, int *h,
208 void *loaderPrivate)
209 {
210 struct dri2_egl_surface *dri2_surf = loaderPrivate;
211
212 *x = *y = 0;
213 *w = dri2_surf->base.Width;
214 *h = dri2_surf->base.Height;
215 }
216
217 static int
218 dri2_get_bytes_per_pixel(struct dri2_egl_surface *dri2_surf)
219 {
220 const int depth = dri2_surf->base.Config->BufferSize;
221 return depth ? util_next_power_of_two(depth / 8) : 0;
222 }
223
224 static void
225 dri2_put_image(__DRIdrawable * draw, int op,
226 int x, int y, int w, int h,
227 char *data, void *loaderPrivate)
228 {
229 struct dri2_egl_surface *dri2_surf = loaderPrivate;
230 const int bpp = dri2_get_bytes_per_pixel(dri2_surf);
231 const int width = dri2_surf->base.Width;
232 const int height = dri2_surf->base.Height;
233 const int dst_stride = width*bpp;
234 const int src_stride = w*bpp;
235 const int x_offset = x*bpp;
236 int copy_width = src_stride;
237
238 if (!dri2_surf->swrast_device_buffer)
239 dri2_surf->swrast_device_buffer = malloc(height*dst_stride);
240
241 if (dri2_surf->swrast_device_buffer) {
242 const char *src = data;
243 char *dst = dri2_surf->swrast_device_buffer;
244
245 dst += x_offset;
246 dst += y*dst_stride;
247
248 /* Drivers are allowed to submit OOB PutImage requests, so clip here. */
249 if (copy_width > dst_stride - x_offset)
250 copy_width = dst_stride - x_offset;
251 if (h > height - y)
252 h = height - y;
253
254 for (; 0 < h; --h) {
255 memcpy(dst, src, copy_width);
256 dst += dst_stride;
257 src += src_stride;
258 }
259 }
260 }
261
262 static void
263 dri2_get_image(__DRIdrawable * read,
264 int x, int y, int w, int h,
265 char *data, void *loaderPrivate)
266 {
267 struct dri2_egl_surface *dri2_surf = loaderPrivate;
268 const int bpp = dri2_get_bytes_per_pixel(dri2_surf);
269 const int width = dri2_surf->base.Width;
270 const int height = dri2_surf->base.Height;
271 const int src_stride = width*bpp;
272 const int dst_stride = w*bpp;
273 const int x_offset = x*bpp;
274 int copy_width = dst_stride;
275 const char *src = dri2_surf->swrast_device_buffer;
276 char *dst = data;
277
278 if (!src) {
279 memset(data, 0, copy_width * h);
280 return;
281 }
282
283 src += x_offset;
284 src += y*src_stride;
285
286 /* Drivers are allowed to submit OOB GetImage requests, so clip here. */
287 if (copy_width > src_stride - x_offset)
288 copy_width = src_stride - x_offset;
289 if (h > height - y)
290 h = height - y;
291
292 for (; 0 < h; --h) {
293 memcpy(dst, src, copy_width);
294 src += src_stride;
295 dst += dst_stride;
296 }
297
298 }
299
300 /* HACK: technically we should have swrast_null, instead of these.
301 */
302 const __DRIswrastLoaderExtension swrast_pbuffer_loader_extension = {
303 .base = { __DRI_SWRAST_LOADER, 1 },
304 .getDrawableInfo = dri2_get_pbuffer_drawable_info,
305 .putImage = dri2_put_image,
306 .getImage = dri2_get_image,
307 };
308
309 static const EGLint dri2_to_egl_attribute_map[__DRI_ATTRIB_MAX] = {
310 [__DRI_ATTRIB_BUFFER_SIZE ] = EGL_BUFFER_SIZE,
311 [__DRI_ATTRIB_LEVEL] = EGL_LEVEL,
312 [__DRI_ATTRIB_LUMINANCE_SIZE] = EGL_LUMINANCE_SIZE,
313 [__DRI_ATTRIB_DEPTH_SIZE] = EGL_DEPTH_SIZE,
314 [__DRI_ATTRIB_STENCIL_SIZE] = EGL_STENCIL_SIZE,
315 [__DRI_ATTRIB_SAMPLE_BUFFERS] = EGL_SAMPLE_BUFFERS,
316 [__DRI_ATTRIB_SAMPLES] = EGL_SAMPLES,
317 [__DRI_ATTRIB_MAX_PBUFFER_WIDTH] = EGL_MAX_PBUFFER_WIDTH,
318 [__DRI_ATTRIB_MAX_PBUFFER_HEIGHT] = EGL_MAX_PBUFFER_HEIGHT,
319 [__DRI_ATTRIB_MAX_PBUFFER_PIXELS] = EGL_MAX_PBUFFER_PIXELS,
320 [__DRI_ATTRIB_MAX_SWAP_INTERVAL] = EGL_MAX_SWAP_INTERVAL,
321 [__DRI_ATTRIB_MIN_SWAP_INTERVAL] = EGL_MIN_SWAP_INTERVAL,
322 [__DRI_ATTRIB_YINVERTED] = EGL_Y_INVERTED_NOK,
323 };
324
325 const __DRIconfig *
326 dri2_get_dri_config(struct dri2_egl_config *conf, EGLint surface_type,
327 EGLenum colorspace)
328 {
329 const bool double_buffer = surface_type == EGL_WINDOW_BIT;
330 const bool srgb = colorspace == EGL_GL_COLORSPACE_SRGB_KHR;
331
332 return conf->dri_config[double_buffer][srgb];
333 }
334
335 static EGLBoolean
336 dri2_match_config(const _EGLConfig *conf, const _EGLConfig *criteria)
337 {
338 if (_eglCompareConfigs(conf, criteria, NULL, EGL_FALSE) != 0)
339 return EGL_FALSE;
340
341 if (!_eglMatchConfig(conf, criteria))
342 return EGL_FALSE;
343
344 return EGL_TRUE;
345 }
346
347 void
348 dri2_get_shifts_and_sizes(const __DRIcoreExtension *core,
349 const __DRIconfig *config, int *shifts,
350 unsigned int *sizes)
351 {
352 unsigned int mask;
353
354 if (core->getConfigAttrib(config, __DRI_ATTRIB_RED_SHIFT, (unsigned int *)&shifts[0])) {
355 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_SHIFT, (unsigned int *)&shifts[1]);
356 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_SHIFT, (unsigned int *)&shifts[2]);
357 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_SHIFT, (unsigned int *)&shifts[3]);
358 } else {
359 /* Driver isn't exposing shifts, so convert masks to shifts */
360 core->getConfigAttrib(config, __DRI_ATTRIB_RED_MASK, &mask);
361 shifts[0] = ffs(mask) - 1;
362 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_MASK, &mask);
363 shifts[1] = ffs(mask) - 1;
364 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_MASK, &mask);
365 shifts[2] = ffs(mask) - 1;
366 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_MASK, &mask);
367 shifts[3] = ffs(mask) - 1;
368 }
369
370 core->getConfigAttrib(config, __DRI_ATTRIB_RED_SIZE, &sizes[0]);
371 core->getConfigAttrib(config, __DRI_ATTRIB_GREEN_SIZE, &sizes[1]);
372 core->getConfigAttrib(config, __DRI_ATTRIB_BLUE_SIZE, &sizes[2]);
373 core->getConfigAttrib(config, __DRI_ATTRIB_ALPHA_SIZE, &sizes[3]);
374 }
375
376 void
377 dri2_get_render_type_float(const __DRIcoreExtension *core,
378 const __DRIconfig *config,
379 bool *is_float)
380 {
381 unsigned int render_type;
382
383 core->getConfigAttrib(config, __DRI_ATTRIB_RENDER_TYPE, &render_type);
384 *is_float = (render_type & __DRI_ATTRIB_FLOAT_BIT) ? true : false;
385 }
386
387 unsigned int
388 dri2_image_format_for_pbuffer_config(struct dri2_egl_display *dri2_dpy,
389 const __DRIconfig *config)
390 {
391 int shifts[4];
392 unsigned int sizes[4];
393
394 dri2_get_shifts_and_sizes(dri2_dpy->core, config, shifts, sizes);
395
396 for (unsigned i = 0; i < ARRAY_SIZE(dri2_pbuffer_visuals); ++i) {
397 const struct dri2_pbuffer_visual *visual = &dri2_pbuffer_visuals[i];
398
399 if (shifts[0] == visual->rgba_shifts[0] &&
400 shifts[1] == visual->rgba_shifts[1] &&
401 shifts[2] == visual->rgba_shifts[2] &&
402 shifts[3] == visual->rgba_shifts[3] &&
403 sizes[0] == visual->rgba_sizes[0] &&
404 sizes[1] == visual->rgba_sizes[1] &&
405 sizes[2] == visual->rgba_sizes[2] &&
406 sizes[3] == visual->rgba_sizes[3]) {
407 return visual->dri_image_format;
408 }
409 }
410
411 return __DRI_IMAGE_FORMAT_NONE;
412 }
413
414 struct dri2_egl_config *
415 dri2_add_config(_EGLDisplay *disp, const __DRIconfig *dri_config, int id,
416 EGLint surface_type, const EGLint *attr_list,
417 const int *rgba_shifts, const unsigned int *rgba_sizes)
418 {
419 struct dri2_egl_config *conf;
420 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
421 _EGLConfig base;
422 unsigned int attrib, value, double_buffer;
423 bool srgb = false;
424 EGLint key, bind_to_texture_rgb, bind_to_texture_rgba;
425 int dri_shifts[4] = { -1, -1, -1, -1 };
426 unsigned int dri_sizes[4] = { 0, 0, 0, 0 };
427 _EGLConfig *matching_config;
428 EGLint num_configs = 0;
429 EGLint config_id;
430
431 _eglInitConfig(&base, disp, id);
432
433 double_buffer = 0;
434 bind_to_texture_rgb = 0;
435 bind_to_texture_rgba = 0;
436
437 for (int i = 0; i < __DRI_ATTRIB_MAX; ++i) {
438 if (!dri2_dpy->core->indexConfigAttrib(dri_config, i, &attrib, &value))
439 break;
440
441 switch (attrib) {
442 case __DRI_ATTRIB_RENDER_TYPE:
443 if (value & __DRI_ATTRIB_FLOAT_BIT)
444 base.ComponentType = EGL_COLOR_COMPONENT_TYPE_FLOAT_EXT;
445 if (value & __DRI_ATTRIB_RGBA_BIT)
446 value = EGL_RGB_BUFFER;
447 else if (value & __DRI_ATTRIB_LUMINANCE_BIT)
448 value = EGL_LUMINANCE_BUFFER;
449 else
450 return NULL;
451 base.ColorBufferType = value;
452 break;
453
454 case __DRI_ATTRIB_CONFIG_CAVEAT:
455 if (value & __DRI_ATTRIB_NON_CONFORMANT_CONFIG)
456 value = EGL_NON_CONFORMANT_CONFIG;
457 else if (value & __DRI_ATTRIB_SLOW_BIT)
458 value = EGL_SLOW_CONFIG;
459 else
460 value = EGL_NONE;
461 base.ConfigCaveat = value;
462 break;
463
464 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGB:
465 bind_to_texture_rgb = value;
466 break;
467
468 case __DRI_ATTRIB_BIND_TO_TEXTURE_RGBA:
469 bind_to_texture_rgba = value;
470 break;
471
472 case __DRI_ATTRIB_DOUBLE_BUFFER:
473 double_buffer = value;
474 break;
475
476 case __DRI_ATTRIB_RED_SIZE:
477 dri_sizes[0] = value;
478 base.RedSize = value;
479 break;
480
481 case __DRI_ATTRIB_RED_MASK:
482 dri_shifts[0] = ffs(value) - 1;
483 break;
484
485 case __DRI_ATTRIB_RED_SHIFT:
486 dri_shifts[0] = value;
487 break;
488
489 case __DRI_ATTRIB_GREEN_SIZE:
490 dri_sizes[1] = value;
491 base.GreenSize = value;
492 break;
493
494 case __DRI_ATTRIB_GREEN_MASK:
495 dri_shifts[1] = ffs(value) - 1;
496 break;
497
498 case __DRI_ATTRIB_GREEN_SHIFT:
499 dri_shifts[1] = value;
500 break;
501
502 case __DRI_ATTRIB_BLUE_SIZE:
503 dri_sizes[2] = value;
504 base.BlueSize = value;
505 break;
506
507 case __DRI_ATTRIB_BLUE_MASK:
508 dri_shifts[2] = ffs(value) - 1;
509 break;
510
511 case __DRI_ATTRIB_BLUE_SHIFT:
512 dri_shifts[2] = value;
513 break;
514
515 case __DRI_ATTRIB_ALPHA_SIZE:
516 dri_sizes[3] = value;
517 base.AlphaSize = value;
518 break;
519
520 case __DRI_ATTRIB_ALPHA_MASK:
521 dri_shifts[3] = ffs(value) - 1;
522 break;
523
524 case __DRI_ATTRIB_ALPHA_SHIFT:
525 dri_shifts[3] = value;
526 break;
527
528 case __DRI_ATTRIB_ACCUM_RED_SIZE:
529 case __DRI_ATTRIB_ACCUM_GREEN_SIZE:
530 case __DRI_ATTRIB_ACCUM_BLUE_SIZE:
531 case __DRI_ATTRIB_ACCUM_ALPHA_SIZE:
532 /* Don't expose visuals with the accumulation buffer. */
533 if (value > 0)
534 return NULL;
535 break;
536
537 case __DRI_ATTRIB_FRAMEBUFFER_SRGB_CAPABLE:
538 srgb = value != 0;
539 if (!disp->Extensions.KHR_gl_colorspace && srgb)
540 return NULL;
541 break;
542
543 case __DRI_ATTRIB_MAX_PBUFFER_WIDTH:
544 base.MaxPbufferWidth = _EGL_MAX_PBUFFER_WIDTH;
545 break;
546 case __DRI_ATTRIB_MAX_PBUFFER_HEIGHT:
547 base.MaxPbufferHeight = _EGL_MAX_PBUFFER_HEIGHT;
548 break;
549 case __DRI_ATTRIB_MUTABLE_RENDER_BUFFER:
550 if (disp->Extensions.KHR_mutable_render_buffer)
551 surface_type |= EGL_MUTABLE_RENDER_BUFFER_BIT_KHR;
552 break;
553 default:
554 key = dri2_to_egl_attribute_map[attrib];
555 if (key != 0)
556 _eglSetConfigKey(&base, key, value);
557 break;
558 }
559 }
560
561 if (attr_list)
562 for (int i = 0; attr_list[i] != EGL_NONE; i += 2)
563 _eglSetConfigKey(&base, attr_list[i], attr_list[i+1]);
564
565 if (rgba_shifts && memcmp(rgba_shifts, dri_shifts, sizeof(dri_shifts)))
566 return NULL;
567
568 if (rgba_sizes && memcmp(rgba_sizes, dri_sizes, sizeof(dri_sizes)))
569 return NULL;
570
571 base.NativeRenderable = EGL_TRUE;
572
573 base.SurfaceType = surface_type;
574 if (surface_type & (EGL_PBUFFER_BIT |
575 (disp->Extensions.NOK_texture_from_pixmap ? EGL_PIXMAP_BIT : 0))) {
576 base.BindToTextureRGB = bind_to_texture_rgb;
577 if (base.AlphaSize > 0)
578 base.BindToTextureRGBA = bind_to_texture_rgba;
579 }
580
581 if (double_buffer) {
582 surface_type &= ~EGL_PIXMAP_BIT;
583 }
584
585 /* No support for pbuffer + MSAA for now.
586 *
587 * XXX TODO: pbuffer + MSAA does not work and causes crashes.
588 * See QT bugreport: https://bugreports.qt.io/browse/QTBUG-47509
589 */
590 if (base.Samples) {
591 surface_type &= ~EGL_PBUFFER_BIT;
592 }
593
594 if (!surface_type)
595 return NULL;
596
597 base.RenderableType = disp->ClientAPIs;
598 base.Conformant = disp->ClientAPIs;
599
600 base.MinSwapInterval = dri2_dpy->min_swap_interval;
601 base.MaxSwapInterval = dri2_dpy->max_swap_interval;
602
603 if (!_eglValidateConfig(&base, EGL_FALSE)) {
604 _eglLog(_EGL_DEBUG, "DRI2: failed to validate config %d", id);
605 return NULL;
606 }
607
608 config_id = base.ConfigID;
609 base.ConfigID = EGL_DONT_CARE;
610 base.SurfaceType = EGL_DONT_CARE;
611 num_configs = _eglFilterArray(disp->Configs, (void **) &matching_config, 1,
612 (_EGLArrayForEach) dri2_match_config, &base);
613
614 if (num_configs == 1) {
615 conf = (struct dri2_egl_config *) matching_config;
616
617 if (!conf->dri_config[double_buffer][srgb])
618 conf->dri_config[double_buffer][srgb] = dri_config;
619 else
620 /* a similar config type is already added (unlikely) => discard */
621 return NULL;
622 }
623 else if (num_configs == 0) {
624 conf = calloc(1, sizeof *conf);
625 if (conf == NULL)
626 return NULL;
627
628 conf->dri_config[double_buffer][srgb] = dri_config;
629
630 memcpy(&conf->base, &base, sizeof base);
631 conf->base.SurfaceType = 0;
632 conf->base.ConfigID = config_id;
633
634 _eglLinkConfig(&conf->base);
635 }
636 else {
637 unreachable("duplicates should not be possible");
638 return NULL;
639 }
640
641 conf->base.SurfaceType |= surface_type;
642
643 return conf;
644 }
645
646 EGLBoolean
647 dri2_add_pbuffer_configs_for_visuals(_EGLDisplay *disp)
648 {
649 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
650 unsigned int format_count[ARRAY_SIZE(dri2_pbuffer_visuals)] = { 0 };
651 unsigned int config_count = 0;
652
653 for (unsigned i = 0; dri2_dpy->driver_configs[i] != NULL; i++) {
654 for (unsigned j = 0; j < ARRAY_SIZE(dri2_pbuffer_visuals); j++) {
655 struct dri2_egl_config *dri2_conf;
656
657 dri2_conf = dri2_add_config(disp, dri2_dpy->driver_configs[i],
658 config_count + 1, EGL_PBUFFER_BIT, NULL,
659 dri2_pbuffer_visuals[j].rgba_shifts, dri2_pbuffer_visuals[j].rgba_sizes);
660
661 if (dri2_conf) {
662 if (dri2_conf->base.ConfigID == config_count + 1)
663 config_count++;
664 format_count[j]++;
665 }
666 }
667 }
668
669 for (unsigned i = 0; i < ARRAY_SIZE(format_count); i++) {
670 if (!format_count[i]) {
671 _eglLog(_EGL_DEBUG, "No DRI config supports native format %s",
672 dri2_pbuffer_visuals[i].format_name);
673 }
674 }
675
676 return (config_count != 0);
677 }
678
679 __DRIimage *
680 dri2_lookup_egl_image(__DRIscreen *screen, void *image, void *data)
681 {
682 _EGLDisplay *disp = data;
683 struct dri2_egl_image *dri2_img;
684 _EGLImage *img;
685
686 (void) screen;
687
688 img = _eglLookupImage(image, disp);
689 if (img == NULL) {
690 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
691 return NULL;
692 }
693
694 dri2_img = dri2_egl_image(image);
695
696 return dri2_img->dri_image;
697 }
698
699 const __DRIimageLookupExtension image_lookup_extension = {
700 .base = { __DRI_IMAGE_LOOKUP, 1 },
701
702 .lookupEGLImage = dri2_lookup_egl_image
703 };
704
705 struct dri2_extension_match {
706 const char *name;
707 int version;
708 int offset;
709 };
710
711 static const struct dri2_extension_match dri3_driver_extensions[] = {
712 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
713 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
714 { NULL, 0, 0 }
715 };
716
717 static const struct dri2_extension_match dri2_driver_extensions[] = {
718 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
719 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
720 { NULL, 0, 0 }
721 };
722
723 static const struct dri2_extension_match dri2_core_extensions[] = {
724 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
725 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
726 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
727 { NULL, 0, 0 }
728 };
729
730 static const struct dri2_extension_match swrast_driver_extensions[] = {
731 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
732 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
733 { NULL, 0, 0 }
734 };
735
736 static const struct dri2_extension_match swrast_core_extensions[] = {
737 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
738 { NULL, 0, 0 }
739 };
740
741 static const struct dri2_extension_match optional_driver_extensions[] = {
742 { __DRI_CONFIG_OPTIONS, 1, offsetof(struct dri2_egl_display, configOptions) },
743 { NULL, 0, 0 }
744 };
745
746 static const struct dri2_extension_match optional_core_extensions[] = {
747 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
748 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
749 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
750 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
751 { __DRI2_BUFFER_DAMAGE, 1, offsetof(struct dri2_egl_display, buffer_damage) },
752 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
753 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
754 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
755 { __DRI2_FLUSH_CONTROL, 1, offsetof(struct dri2_egl_display, flush_control) },
756 { __DRI2_BLOB, 1, offsetof(struct dri2_egl_display, blob) },
757 { __DRI_MUTABLE_RENDER_BUFFER_DRIVER, 1, offsetof(struct dri2_egl_display, mutable_render_buffer) },
758 { NULL, 0, 0 }
759 };
760
761 static EGLBoolean
762 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
763 const struct dri2_extension_match *matches,
764 const __DRIextension **extensions,
765 bool optional)
766 {
767 int ret = EGL_TRUE;
768 void *field;
769
770 for (int i = 0; extensions[i]; i++) {
771 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
772 for (int j = 0; matches[j].name; j++) {
773 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
774 extensions[i]->version >= matches[j].version) {
775 field = ((char *) dri2_dpy + matches[j].offset);
776 *(const __DRIextension **) field = extensions[i];
777 _eglLog(_EGL_INFO, "found extension %s version %d",
778 extensions[i]->name, extensions[i]->version);
779 break;
780 }
781 }
782 }
783
784 for (int j = 0; matches[j].name; j++) {
785 field = ((char *) dri2_dpy + matches[j].offset);
786 if (*(const __DRIextension **) field == NULL) {
787 if (optional) {
788 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
789 matches[j].name, matches[j].version);
790 } else {
791 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
792 matches[j].name, matches[j].version);
793 ret = EGL_FALSE;
794 }
795 }
796 }
797
798 return ret;
799 }
800
801 static const __DRIextension **
802 dri2_open_driver(_EGLDisplay *disp)
803 {
804 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
805 static const char *search_path_vars[] = {
806 "LIBGL_DRIVERS_PATH",
807 NULL,
808 };
809
810 return loader_open_driver(dri2_dpy->driver_name,
811 &dri2_dpy->driver,
812 search_path_vars);
813 }
814
815 static EGLBoolean
816 dri2_load_driver_common(_EGLDisplay *disp,
817 const struct dri2_extension_match *driver_extensions)
818 {
819 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
820 const __DRIextension **extensions;
821
822 extensions = dri2_open_driver(disp);
823 if (!extensions)
824 return EGL_FALSE;
825
826 if (!dri2_bind_extensions(dri2_dpy, driver_extensions, extensions, false)) {
827 dlclose(dri2_dpy->driver);
828 dri2_dpy->driver = NULL;
829 return EGL_FALSE;
830 }
831 dri2_dpy->driver_extensions = extensions;
832
833 dri2_bind_extensions(dri2_dpy, optional_driver_extensions, extensions, true);
834
835 return EGL_TRUE;
836 }
837
838 EGLBoolean
839 dri2_load_driver(_EGLDisplay *disp)
840 {
841 return dri2_load_driver_common(disp, dri2_driver_extensions);
842 }
843
844 EGLBoolean
845 dri2_load_driver_dri3(_EGLDisplay *disp)
846 {
847 return dri2_load_driver_common(disp, dri3_driver_extensions);
848 }
849
850 EGLBoolean
851 dri2_load_driver_swrast(_EGLDisplay *disp)
852 {
853 return dri2_load_driver_common(disp, swrast_driver_extensions);
854 }
855
856 static unsigned
857 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
858 {
859 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
860 unsigned int value = 0;
861
862 if (!rendererQuery ||
863 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
864 return 0;
865
866 return value;
867 }
868
869 static const char *
870 dri2_query_driver_name(_EGLDisplay *disp)
871 {
872 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
873 return dri2_dpy->driver_name;
874 }
875
876 static char *
877 dri2_query_driver_config(_EGLDisplay *disp)
878 {
879 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
880 const __DRIconfigOptionsExtension *ext = dri2_dpy->configOptions;
881
882 if (ext->base.version >= 2)
883 return ext->getXml(dri2_dpy->driver_name);
884
885 return strdup(ext->xml);
886 }
887
888
889 void
890 dri2_setup_screen(_EGLDisplay *disp)
891 {
892 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
893 unsigned int api_mask;
894
895 /*
896 * EGL 1.5 specification defines the default value to 1. Moreover,
897 * eglSwapInterval() is required to clamp requested value to the supported
898 * range. Since the default value is implicitly assumed to be supported,
899 * use it as both minimum and maximum for the platforms that do not allow
900 * changing the interval. Platforms, which allow it (e.g. x11, wayland)
901 * override these values already.
902 */
903 dri2_dpy->min_swap_interval = 1;
904 dri2_dpy->max_swap_interval = 1;
905 dri2_dpy->default_swap_interval = 1;
906
907 if (dri2_dpy->image_driver) {
908 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
909 } else if (dri2_dpy->dri2) {
910 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
911 } else {
912 assert(dri2_dpy->swrast);
913 api_mask = 1 << __DRI_API_OPENGL |
914 1 << __DRI_API_GLES |
915 1 << __DRI_API_GLES2 |
916 1 << __DRI_API_GLES3;
917 }
918
919 disp->ClientAPIs = 0;
920 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
921 disp->ClientAPIs |= EGL_OPENGL_BIT;
922 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
923 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
924 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
925 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
926 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
927 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
928
929 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
930 disp->Extensions.KHR_no_config_context = EGL_TRUE;
931 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
932
933 if (dri2_dpy->configOptions) {
934 disp->Extensions.MESA_query_driver = EGL_TRUE;
935 }
936
937 /* Report back to EGL the bitmask of priorities supported */
938 disp->Extensions.IMG_context_priority =
939 dri2_renderer_query_integer(dri2_dpy,
940 __DRI2_RENDERER_HAS_CONTEXT_PRIORITY);
941
942 disp->Extensions.EXT_pixel_format_float = EGL_TRUE;
943
944 if (dri2_renderer_query_integer(dri2_dpy,
945 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
946 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
947
948 if (dri2_dpy->image_driver ||
949 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
950 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
951 disp->Extensions.KHR_create_context = EGL_TRUE;
952
953 if (dri2_dpy->robustness)
954 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
955 }
956
957 if (dri2_dpy->no_error)
958 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
959
960 if (dri2_dpy->fence) {
961 disp->Extensions.KHR_fence_sync = EGL_TRUE;
962 disp->Extensions.KHR_wait_sync = EGL_TRUE;
963 if (dri2_dpy->fence->get_fence_from_cl_event)
964 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
965 if (dri2_dpy->fence->base.version >= 2 &&
966 dri2_dpy->fence->get_capabilities) {
967 unsigned capabilities =
968 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
969 disp->Extensions.ANDROID_native_fence_sync =
970 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
971 }
972 }
973
974 if (dri2_dpy->blob)
975 disp->Extensions.ANDROID_blob_cache = EGL_TRUE;
976
977 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
978
979 if (dri2_dpy->image) {
980 if (dri2_dpy->image->base.version >= 10 &&
981 dri2_dpy->image->getCapabilities != NULL) {
982 int capabilities;
983
984 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
985 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
986
987 if (dri2_dpy->image->base.version >= 11)
988 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
989 } else {
990 disp->Extensions.MESA_drm_image = EGL_TRUE;
991 if (dri2_dpy->image->base.version >= 11)
992 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
993 }
994
995 disp->Extensions.KHR_image_base = EGL_TRUE;
996 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
997 if (dri2_dpy->image->base.version >= 5 &&
998 dri2_dpy->image->createImageFromTexture) {
999 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
1000 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
1001
1002 if (dri2_renderer_query_integer(dri2_dpy,
1003 __DRI2_RENDERER_HAS_TEXTURE_3D))
1004 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
1005 }
1006 #ifdef HAVE_LIBDRM
1007 if (dri2_dpy->image->base.version >= 8 &&
1008 dri2_dpy->image->createImageFromDmaBufs) {
1009 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
1010 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
1011 }
1012 #endif
1013 }
1014
1015 if (dri2_dpy->flush_control)
1016 disp->Extensions.KHR_context_flush_control = EGL_TRUE;
1017
1018 if (dri2_dpy->buffer_damage && dri2_dpy->buffer_damage->set_damage_region)
1019 disp->Extensions.KHR_partial_update = EGL_TRUE;
1020 }
1021
1022 void
1023 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
1024 {
1025 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1026 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
1027
1028 /* Allow driconf to override applications.*/
1029 if (dri2_dpy->config)
1030 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
1031 "vblank_mode", &vblank_mode);
1032 switch (vblank_mode) {
1033 case DRI_CONF_VBLANK_NEVER:
1034 dri2_dpy->min_swap_interval = 0;
1035 dri2_dpy->max_swap_interval = 0;
1036 dri2_dpy->default_swap_interval = 0;
1037 break;
1038 case DRI_CONF_VBLANK_ALWAYS_SYNC:
1039 dri2_dpy->min_swap_interval = 1;
1040 dri2_dpy->max_swap_interval = max_swap_interval;
1041 dri2_dpy->default_swap_interval = 1;
1042 break;
1043 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
1044 dri2_dpy->min_swap_interval = 0;
1045 dri2_dpy->max_swap_interval = max_swap_interval;
1046 dri2_dpy->default_swap_interval = 0;
1047 break;
1048 default:
1049 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
1050 dri2_dpy->min_swap_interval = 0;
1051 dri2_dpy->max_swap_interval = max_swap_interval;
1052 dri2_dpy->default_swap_interval = 1;
1053 break;
1054 }
1055 }
1056
1057 /* All platforms but DRM call this function to create the screen and populate
1058 * the driver_configs. DRM inherits that information from its display - GBM.
1059 */
1060 EGLBoolean
1061 dri2_create_screen(_EGLDisplay *disp)
1062 {
1063 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1064
1065 if (dri2_dpy->image_driver) {
1066 dri2_dpy->dri_screen =
1067 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
1068 dri2_dpy->loader_extensions,
1069 dri2_dpy->driver_extensions,
1070 &dri2_dpy->driver_configs,
1071 disp);
1072 } else if (dri2_dpy->dri2) {
1073 if (dri2_dpy->dri2->base.version >= 4) {
1074 dri2_dpy->dri_screen =
1075 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
1076 dri2_dpy->loader_extensions,
1077 dri2_dpy->driver_extensions,
1078 &dri2_dpy->driver_configs, disp);
1079 } else {
1080 dri2_dpy->dri_screen =
1081 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
1082 dri2_dpy->loader_extensions,
1083 &dri2_dpy->driver_configs, disp);
1084 }
1085 } else {
1086 assert(dri2_dpy->swrast);
1087 if (dri2_dpy->swrast->base.version >= 4) {
1088 dri2_dpy->dri_screen =
1089 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
1090 dri2_dpy->driver_extensions,
1091 &dri2_dpy->driver_configs, disp);
1092 } else {
1093 dri2_dpy->dri_screen =
1094 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
1095 &dri2_dpy->driver_configs, disp);
1096 }
1097 }
1098
1099 if (dri2_dpy->dri_screen == NULL) {
1100 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
1101 return EGL_FALSE;
1102 }
1103
1104 dri2_dpy->own_dri_screen = true;
1105 return EGL_TRUE;
1106 }
1107
1108 EGLBoolean
1109 dri2_setup_extensions(_EGLDisplay *disp)
1110 {
1111 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1112 const struct dri2_extension_match *mandatory_core_extensions;
1113 const __DRIextension **extensions;
1114
1115 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
1116
1117 if (dri2_dpy->image_driver || dri2_dpy->dri2)
1118 mandatory_core_extensions = dri2_core_extensions;
1119 else
1120 mandatory_core_extensions = swrast_core_extensions;
1121
1122 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
1123 return EGL_FALSE;
1124
1125 #ifdef HAVE_DRI3_MODIFIERS
1126 dri2_dpy->multibuffers_available =
1127 (dri2_dpy->dri3_major_version > 1 || (dri2_dpy->dri3_major_version == 1 &&
1128 dri2_dpy->dri3_minor_version >= 2)) &&
1129 (dri2_dpy->present_major_version > 1 || (dri2_dpy->present_major_version == 1 &&
1130 dri2_dpy->present_minor_version >= 2)) &&
1131 (dri2_dpy->image && dri2_dpy->image->base.version >= 15);
1132 #endif
1133
1134 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
1135 return EGL_TRUE;
1136 }
1137
1138 /**
1139 * Called via eglInitialize(), drv->Initialize().
1140 *
1141 * This must be guaranteed to be called exactly once, even if eglInitialize is
1142 * called many times (without a eglTerminate in between).
1143 */
1144 static EGLBoolean
1145 dri2_initialize(_EGLDisplay *disp)
1146 {
1147 EGLBoolean ret = EGL_FALSE;
1148 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1149
1150 /* In the case where the application calls eglMakeCurrent(context1),
1151 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
1152 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
1153 * initialized, as we need it to be able to free context1 correctly.
1154 *
1155 * It would probably be safest to forcibly release the display with
1156 * dri2_display_release, to make sure the display is reinitialized correctly.
1157 * However, the EGL spec states that we need to keep a reference to the
1158 * current context (so we cannot call dri2_make_current(NULL)), and therefore
1159 * we would leak context1 as we would be missing the old display connection
1160 * to free it up correctly.
1161 */
1162 if (dri2_dpy) {
1163 dri2_dpy->ref_count++;
1164 return EGL_TRUE;
1165 }
1166
1167 loader_set_logger(_eglLog);
1168
1169 switch (disp->Platform) {
1170 case _EGL_PLATFORM_SURFACELESS:
1171 ret = dri2_initialize_surfaceless(disp);
1172 break;
1173 case _EGL_PLATFORM_DEVICE:
1174 ret = dri2_initialize_device(disp);
1175 break;
1176 case _EGL_PLATFORM_X11:
1177 ret = dri2_initialize_x11(disp);
1178 break;
1179 case _EGL_PLATFORM_DRM:
1180 ret = dri2_initialize_drm(disp);
1181 break;
1182 case _EGL_PLATFORM_WAYLAND:
1183 ret = dri2_initialize_wayland(disp);
1184 break;
1185 case _EGL_PLATFORM_ANDROID:
1186 ret = dri2_initialize_android(disp);
1187 break;
1188 default:
1189 unreachable("Callers ensure we cannot get here.");
1190 return EGL_FALSE;
1191 }
1192
1193 if (!ret)
1194 return EGL_FALSE;
1195
1196 dri2_dpy = dri2_egl_display(disp);
1197 dri2_dpy->ref_count++;
1198
1199 return EGL_TRUE;
1200 }
1201
1202 /**
1203 * Decrement display reference count, and free up display if necessary.
1204 */
1205 static void
1206 dri2_display_release(_EGLDisplay *disp)
1207 {
1208 struct dri2_egl_display *dri2_dpy;
1209
1210 if (!disp)
1211 return;
1212
1213 dri2_dpy = dri2_egl_display(disp);
1214
1215 assert(dri2_dpy->ref_count > 0);
1216 dri2_dpy->ref_count--;
1217
1218 if (dri2_dpy->ref_count > 0)
1219 return;
1220
1221 _eglCleanupDisplay(disp);
1222 dri2_display_destroy(disp);
1223 }
1224
1225 void
1226 dri2_display_destroy(_EGLDisplay *disp)
1227 {
1228 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1229
1230 if (dri2_dpy->own_dri_screen) {
1231 if (dri2_dpy->vtbl && dri2_dpy->vtbl->close_screen_notify)
1232 dri2_dpy->vtbl->close_screen_notify(disp);
1233 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1234 }
1235 if (dri2_dpy->fd >= 0)
1236 close(dri2_dpy->fd);
1237 if (dri2_dpy->driver)
1238 dlclose(dri2_dpy->driver);
1239 free(dri2_dpy->driver_name);
1240
1241 #ifdef HAVE_WAYLAND_PLATFORM
1242 free(dri2_dpy->device_name);
1243 #endif
1244
1245 switch (disp->Platform) {
1246 case _EGL_PLATFORM_X11:
1247 dri2_teardown_x11(dri2_dpy);
1248 break;
1249 case _EGL_PLATFORM_DRM:
1250 dri2_teardown_drm(dri2_dpy);
1251 break;
1252 case _EGL_PLATFORM_WAYLAND:
1253 dri2_teardown_wayland(dri2_dpy);
1254 break;
1255 default:
1256 /* TODO: add teardown for other platforms */
1257 break;
1258 }
1259
1260 /* The drm platform does not create the screen/driver_configs but reuses
1261 * the ones from the gbm device. As such the gbm itself is responsible
1262 * for the cleanup.
1263 */
1264 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1265 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1266 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1267 free(dri2_dpy->driver_configs);
1268 }
1269 free(dri2_dpy);
1270 disp->DriverData = NULL;
1271 }
1272
1273 __DRIbuffer *
1274 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
1275 unsigned int att, unsigned int format)
1276 {
1277 struct dri2_egl_display *dri2_dpy =
1278 dri2_egl_display(dri2_surf->base.Resource.Display);
1279
1280 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
1281 return NULL;
1282
1283 if (!dri2_surf->local_buffers[att]) {
1284 dri2_surf->local_buffers[att] =
1285 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
1286 dri2_surf->base.Width, dri2_surf->base.Height);
1287 }
1288
1289 return dri2_surf->local_buffers[att];
1290 }
1291
1292 void
1293 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
1294 {
1295 struct dri2_egl_display *dri2_dpy =
1296 dri2_egl_display(dri2_surf->base.Resource.Display);
1297
1298 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1299 if (dri2_surf->local_buffers[i]) {
1300 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1301 dri2_surf->local_buffers[i]);
1302 dri2_surf->local_buffers[i] = NULL;
1303 }
1304 }
1305 }
1306
1307 /**
1308 * Called via eglTerminate(), drv->Terminate().
1309 *
1310 * This must be guaranteed to be called exactly once, even if eglTerminate is
1311 * called many times (without a eglInitialize in between).
1312 */
1313 static EGLBoolean
1314 dri2_terminate(const _EGLDriver *drv, _EGLDisplay *disp)
1315 {
1316 /* Release all non-current Context/Surfaces. */
1317 _eglReleaseDisplayResources(disp);
1318
1319 dri2_display_release(disp);
1320
1321 return EGL_TRUE;
1322 }
1323
1324 /**
1325 * Set the error code after a call to
1326 * dri2_egl_display::dri2::createContextAttribs.
1327 */
1328 static void
1329 dri2_create_context_attribs_error(int dri_error)
1330 {
1331 EGLint egl_error;
1332
1333 switch (dri_error) {
1334 case __DRI_CTX_ERROR_SUCCESS:
1335 return;
1336
1337 case __DRI_CTX_ERROR_NO_MEMORY:
1338 egl_error = EGL_BAD_ALLOC;
1339 break;
1340
1341 /* From the EGL_KHR_create_context spec, section "Errors":
1342 *
1343 * * If <config> does not support a client API context compatible
1344 * with the requested API major and minor version, [...] context flags,
1345 * and context reset notification behavior (for client API types where
1346 * these attributes are supported), then an EGL_BAD_MATCH error is
1347 * generated.
1348 *
1349 * * If an OpenGL ES context is requested and the values for
1350 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1351 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1352 * is not defined, than an EGL_BAD_MATCH error is generated.
1353 *
1354 * * If an OpenGL context is requested, the requested version is
1355 * greater than 3.2, and the value for attribute
1356 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1357 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1358 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1359 * one of these bits set; or if the implementation does not support
1360 * the requested profile, then an EGL_BAD_MATCH error is generated.
1361 */
1362 case __DRI_CTX_ERROR_BAD_API:
1363 case __DRI_CTX_ERROR_BAD_VERSION:
1364 case __DRI_CTX_ERROR_BAD_FLAG:
1365 egl_error = EGL_BAD_MATCH;
1366 break;
1367
1368 /* From the EGL_KHR_create_context spec, section "Errors":
1369 *
1370 * * If an attribute name or attribute value in <attrib_list> is not
1371 * recognized (including unrecognized bits in bitmask attributes),
1372 * then an EGL_BAD_ATTRIBUTE error is generated."
1373 */
1374 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1375 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1376 egl_error = EGL_BAD_ATTRIBUTE;
1377 break;
1378
1379 default:
1380 assert(!"unknown dri_error code");
1381 egl_error = EGL_BAD_MATCH;
1382 break;
1383 }
1384
1385 _eglError(egl_error, "dri2_create_context");
1386 }
1387
1388 static bool
1389 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1390 struct dri2_egl_display *dri2_dpy,
1391 uint32_t *ctx_attribs,
1392 unsigned *num_attribs)
1393 {
1394 int pos = 0;
1395
1396 assert(*num_attribs >= NUM_ATTRIBS);
1397
1398 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1399 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1400 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1401 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1402
1403 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1404 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1405 * extension, don't even try to send it the robust-access flag.
1406 * It may explode. Instead, generate the required EGL error here.
1407 */
1408 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1409 && !dri2_dpy->robustness) {
1410 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1411 return false;
1412 }
1413
1414 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1415 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1416 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1417 }
1418
1419 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1420 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1421 * extension, don't even try to send it a reset strategy. It may
1422 * explode. Instead, generate the required EGL error here.
1423 */
1424 if (!dri2_dpy->robustness) {
1425 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1426 return false;
1427 }
1428
1429 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1430 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1431 }
1432
1433 if (dri2_ctx->base.ContextPriority != EGL_CONTEXT_PRIORITY_MEDIUM_IMG) {
1434 unsigned val;
1435
1436 switch (dri2_ctx->base.ContextPriority) {
1437 case EGL_CONTEXT_PRIORITY_HIGH_IMG:
1438 val = __DRI_CTX_PRIORITY_HIGH;
1439 break;
1440 case EGL_CONTEXT_PRIORITY_MEDIUM_IMG:
1441 val = __DRI_CTX_PRIORITY_MEDIUM;
1442 break;
1443 case EGL_CONTEXT_PRIORITY_LOW_IMG:
1444 val = __DRI_CTX_PRIORITY_LOW;
1445 break;
1446 default:
1447 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1448 return false;
1449 }
1450
1451 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_PRIORITY;
1452 ctx_attribs[pos++] = val;
1453 }
1454
1455 if (dri2_ctx->base.ReleaseBehavior == EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR) {
1456 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR;
1457 ctx_attribs[pos++] = __DRI_CTX_RELEASE_BEHAVIOR_NONE;
1458 }
1459
1460 *num_attribs = pos;
1461
1462 return true;
1463 }
1464
1465 /**
1466 * Called via eglCreateContext(), drv->CreateContext().
1467 */
1468 static _EGLContext *
1469 dri2_create_context(const _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->DestroyContext().
1642 */
1643 static EGLBoolean
1644 dri2_destroy_context(const _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(const _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->MakeCurrent().
1757 */
1758 static EGLBoolean
1759 dri2_make_current(const _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 EGLint egl_error = EGL_SUCCESS;
1772
1773 if (!dri2_dpy)
1774 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1775
1776 /* make new bindings, set the EGL error otherwise */
1777 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1778 return EGL_FALSE;
1779
1780 if (old_ctx) {
1781 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1782 old_disp = old_ctx->Resource.Display;
1783 old_dri2_dpy = dri2_egl_display(old_disp);
1784
1785 /* flush before context switch */
1786 dri2_gl_flush();
1787
1788 if (old_dsurf)
1789 dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
1790
1791 /* Disable shared buffer mode */
1792 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1793 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1794 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, false);
1795 }
1796
1797 dri2_dpy->core->unbindContext(old_cctx);
1798 }
1799
1800 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1801 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1802 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1803
1804 if (cctx || ddraw || rdraw) {
1805 if (!dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1806 _EGLContext *tmp_ctx;
1807
1808 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1809 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1810 * as EGL_SUCCESS.
1811 */
1812 egl_error = EGL_BAD_MATCH;
1813
1814 /* undo the previous _eglBindContext */
1815 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1816 assert(&dri2_ctx->base == ctx &&
1817 tmp_dsurf == dsurf &&
1818 tmp_rsurf == rsurf);
1819
1820 _eglPutSurface(dsurf);
1821 _eglPutSurface(rsurf);
1822 _eglPutContext(ctx);
1823
1824 _eglPutSurface(old_dsurf);
1825 _eglPutSurface(old_rsurf);
1826 _eglPutContext(old_ctx);
1827
1828 ddraw = (old_dsurf) ? dri2_dpy->vtbl->get_dri_drawable(old_dsurf) : NULL;
1829 rdraw = (old_rsurf) ? dri2_dpy->vtbl->get_dri_drawable(old_rsurf) : NULL;
1830 cctx = (old_ctx) ? dri2_egl_context(old_ctx)->dri_context : NULL;
1831
1832 /* undo the previous dri2_dpy->core->unbindContext */
1833 if (dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1834 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1835 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1836 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
1837 }
1838
1839 return _eglError(egl_error, "eglMakeCurrent");
1840 }
1841
1842 /* We cannot restore the same state as it was before calling
1843 * eglMakeCurrent() and the spec isn't clear about what to do. We
1844 * can prevent EGL from calling into the DRI driver with no DRI
1845 * context bound.
1846 */
1847 dsurf = rsurf = NULL;
1848 ctx = NULL;
1849
1850 _eglBindContext(ctx, dsurf, rsurf, &tmp_ctx, &tmp_dsurf, &tmp_rsurf);
1851 assert(tmp_ctx == old_ctx && tmp_dsurf == old_dsurf &&
1852 tmp_rsurf == old_rsurf);
1853
1854 _eglLog(_EGL_WARNING, "DRI2: failed to rebind the previous context");
1855 } else {
1856 /* dri2_dpy->core->bindContext succeeded, so take a reference on the
1857 * dri2_dpy. This prevents dri2_dpy from being reinitialized when a
1858 * EGLDisplay is terminated and then initialized again while a
1859 * context is still bound. See dri2_intitialize() for a more in depth
1860 * explanation. */
1861 dri2_dpy->ref_count++;
1862 }
1863 }
1864
1865 dri2_destroy_surface(drv, disp, old_dsurf);
1866 dri2_destroy_surface(drv, disp, old_rsurf);
1867
1868 if (old_ctx) {
1869 dri2_destroy_context(drv, disp, old_ctx);
1870 dri2_display_release(old_disp);
1871 }
1872
1873 if (egl_error != EGL_SUCCESS)
1874 return _eglError(egl_error, "eglMakeCurrent");
1875
1876 if (dsurf && _eglSurfaceHasMutableRenderBuffer(dsurf) &&
1877 dri2_dpy->vtbl->set_shared_buffer_mode) {
1878 /* Always update the shared buffer mode. This is obviously needed when
1879 * the active EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. When
1880 * EGL_RENDER_BUFFER is EGL_BACK_BUFFER, the update protects us in the
1881 * case where external non-EGL API may have changed window's shared
1882 * buffer mode since we last saw it.
1883 */
1884 bool mode = (dsurf->ActiveRenderBuffer == EGL_SINGLE_BUFFER);
1885 dri2_dpy->vtbl->set_shared_buffer_mode(disp, dsurf, mode);
1886 }
1887
1888 return EGL_TRUE;
1889 }
1890
1891 __DRIdrawable *
1892 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1893 {
1894 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1895
1896 return dri2_surf->dri_drawable;
1897 }
1898
1899 /*
1900 * Called from eglGetProcAddress() via drv->GetProcAddress().
1901 */
1902 static _EGLProc
1903 dri2_get_proc_address(const _EGLDriver *drv, const char *procname)
1904 {
1905 return _glapi_get_proc_address(procname);
1906 }
1907
1908 static _EGLSurface*
1909 dri2_create_window_surface(const _EGLDriver *drv, _EGLDisplay *disp,
1910 _EGLConfig *conf, void *native_window,
1911 const EGLint *attrib_list)
1912 {
1913 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1914 return dri2_dpy->vtbl->create_window_surface(drv, disp, conf, native_window,
1915 attrib_list);
1916 }
1917
1918 static _EGLSurface*
1919 dri2_create_pixmap_surface(const _EGLDriver *drv, _EGLDisplay *disp,
1920 _EGLConfig *conf, void *native_pixmap,
1921 const EGLint *attrib_list)
1922 {
1923 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1924 if (!dri2_dpy->vtbl->create_pixmap_surface)
1925 return NULL;
1926 return dri2_dpy->vtbl->create_pixmap_surface(drv, disp, conf, native_pixmap,
1927 attrib_list);
1928 }
1929
1930 static _EGLSurface*
1931 dri2_create_pbuffer_surface(const _EGLDriver *drv, _EGLDisplay *disp,
1932 _EGLConfig *conf, const EGLint *attrib_list)
1933 {
1934 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1935 if (!dri2_dpy->vtbl->create_pbuffer_surface)
1936 return NULL;
1937 return dri2_dpy->vtbl->create_pbuffer_surface(drv, disp, conf, attrib_list);
1938 }
1939
1940 static EGLBoolean
1941 dri2_swap_interval(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
1942 EGLint interval)
1943 {
1944 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1945 if (!dri2_dpy->vtbl->swap_interval)
1946 return EGL_TRUE;
1947 return dri2_dpy->vtbl->swap_interval(drv, disp, surf, interval);
1948 }
1949
1950 /**
1951 * Asks the client API to flush any rendering to the drawable so that we can
1952 * do our swapbuffers.
1953 */
1954 void
1955 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1956 {
1957 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1958 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1959
1960 if (dri2_dpy->flush) {
1961 if (dri2_dpy->flush->base.version >= 4) {
1962 /* We know there's a current context because:
1963 *
1964 * "If surface is not bound to the calling thread’s current
1965 * context, an EGL_BAD_SURFACE error is generated."
1966 */
1967 _EGLContext *ctx = _eglGetCurrentContext();
1968 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1969
1970 /* From the EGL 1.4 spec (page 52):
1971 *
1972 * "The contents of ancillary buffers are always undefined
1973 * after calling eglSwapBuffers."
1974 */
1975 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1976 dri_drawable,
1977 __DRI2_FLUSH_DRAWABLE |
1978 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1979 __DRI2_THROTTLE_SWAPBUFFER);
1980 } else {
1981 dri2_dpy->flush->flush(dri_drawable);
1982 }
1983 }
1984 }
1985
1986 static EGLBoolean
1987 dri2_swap_buffers(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
1988 {
1989 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1990 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1991 _EGLContext *ctx = _eglGetCurrentContext();
1992 EGLBoolean ret;
1993
1994 if (ctx && surf)
1995 dri2_surf_update_fence_fd(ctx, disp, surf);
1996 ret = dri2_dpy->vtbl->swap_buffers(drv, disp, surf);
1997
1998 /* SwapBuffers marks the end of the frame; reset the damage region for
1999 * use again next time.
2000 */
2001 if (ret && dri2_dpy->buffer_damage &&
2002 dri2_dpy->buffer_damage->set_damage_region)
2003 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2004
2005 return ret;
2006 }
2007
2008 static EGLBoolean
2009 dri2_swap_buffers_with_damage(const _EGLDriver *drv, _EGLDisplay *disp,
2010 _EGLSurface *surf,
2011 const EGLint *rects, EGLint n_rects)
2012 {
2013 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2014 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2015 _EGLContext *ctx = _eglGetCurrentContext();
2016 EGLBoolean ret;
2017
2018 if (ctx && surf)
2019 dri2_surf_update_fence_fd(ctx, disp, surf);
2020 if (dri2_dpy->vtbl->swap_buffers_with_damage)
2021 ret = dri2_dpy->vtbl->swap_buffers_with_damage(drv, disp, surf,
2022 rects, n_rects);
2023 else
2024 ret = dri2_dpy->vtbl->swap_buffers(drv, disp, surf);
2025
2026 /* SwapBuffers marks the end of the frame; reset the damage region for
2027 * use again next time.
2028 */
2029 if (ret && dri2_dpy->buffer_damage &&
2030 dri2_dpy->buffer_damage->set_damage_region)
2031 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2032
2033 return ret;
2034 }
2035
2036 static EGLBoolean
2037 dri2_swap_buffers_region(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2038 EGLint numRects, const EGLint *rects)
2039 {
2040 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2041 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2042 EGLBoolean ret;
2043
2044 if (!dri2_dpy->vtbl->swap_buffers_region)
2045 return EGL_FALSE;
2046 ret = dri2_dpy->vtbl->swap_buffers_region(drv, disp, surf, numRects, rects);
2047
2048 /* SwapBuffers marks the end of the frame; reset the damage region for
2049 * use again next time.
2050 */
2051 if (ret && dri2_dpy->buffer_damage &&
2052 dri2_dpy->buffer_damage->set_damage_region)
2053 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2054
2055 return ret;
2056 }
2057
2058 static EGLBoolean
2059 dri2_set_damage_region(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2060 EGLint *rects, EGLint n_rects)
2061 {
2062 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2063 __DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2064
2065 if (!dri2_dpy->buffer_damage || !dri2_dpy->buffer_damage->set_damage_region)
2066 return EGL_FALSE;
2067
2068 dri2_dpy->buffer_damage->set_damage_region(drawable, n_rects, rects);
2069 return EGL_TRUE;
2070 }
2071
2072 static EGLBoolean
2073 dri2_post_sub_buffer(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2074 EGLint x, EGLint y, EGLint width, EGLint height)
2075 {
2076 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2077 if (!dri2_dpy->vtbl->post_sub_buffer)
2078 return EGL_FALSE;
2079 return dri2_dpy->vtbl->post_sub_buffer(drv, disp, surf, x, y, width, height);
2080 }
2081
2082 static EGLBoolean
2083 dri2_copy_buffers(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2084 void *native_pixmap_target)
2085 {
2086 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2087 if (!dri2_dpy->vtbl->copy_buffers)
2088 return _eglError(EGL_BAD_NATIVE_PIXMAP, "no support for native pixmaps");
2089 return dri2_dpy->vtbl->copy_buffers(drv, disp, surf, native_pixmap_target);
2090 }
2091
2092 static EGLint
2093 dri2_query_buffer_age(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
2094 {
2095 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2096 if (!dri2_dpy->vtbl->query_buffer_age)
2097 return 0;
2098 return dri2_dpy->vtbl->query_buffer_age(drv, disp, surf);
2099 }
2100
2101 static EGLBoolean
2102 dri2_wait_client(const _EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx)
2103 {
2104 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2105 _EGLSurface *surf = ctx->DrawSurface;
2106 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2107
2108 (void) drv;
2109
2110 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
2111 * we need to copy fake to real here.*/
2112
2113 if (dri2_dpy->flush != NULL)
2114 dri2_dpy->flush->flush(dri_drawable);
2115
2116 return EGL_TRUE;
2117 }
2118
2119 static EGLBoolean
2120 dri2_wait_native(const _EGLDriver *drv, _EGLDisplay *disp, EGLint engine)
2121 {
2122 (void) drv;
2123 (void) disp;
2124
2125 if (engine != EGL_CORE_NATIVE_ENGINE)
2126 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
2127 /* glXWaitX(); */
2128
2129 return EGL_TRUE;
2130 }
2131
2132 static EGLBoolean
2133 dri2_bind_tex_image(const _EGLDriver *drv,
2134 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2135 {
2136 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2137 struct dri2_egl_context *dri2_ctx;
2138 _EGLContext *ctx;
2139 GLint format, target;
2140 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2141
2142 ctx = _eglGetCurrentContext();
2143 dri2_ctx = dri2_egl_context(ctx);
2144
2145 if (!_eglBindTexImage(drv, disp, surf, buffer))
2146 return EGL_FALSE;
2147
2148 switch (surf->TextureFormat) {
2149 case EGL_TEXTURE_RGB:
2150 format = __DRI_TEXTURE_FORMAT_RGB;
2151 break;
2152 case EGL_TEXTURE_RGBA:
2153 format = __DRI_TEXTURE_FORMAT_RGBA;
2154 break;
2155 default:
2156 assert(!"Unexpected texture format in dri2_bind_tex_image()");
2157 format = __DRI_TEXTURE_FORMAT_RGBA;
2158 }
2159
2160 switch (surf->TextureTarget) {
2161 case EGL_TEXTURE_2D:
2162 target = GL_TEXTURE_2D;
2163 break;
2164 default:
2165 target = GL_TEXTURE_2D;
2166 assert(!"Unexpected texture target in dri2_bind_tex_image()");
2167 }
2168
2169 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
2170 target, format,
2171 dri_drawable);
2172
2173 return EGL_TRUE;
2174 }
2175
2176 static EGLBoolean
2177 dri2_release_tex_image(const _EGLDriver *drv,
2178 _EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2179 {
2180 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2181 struct dri2_egl_context *dri2_ctx;
2182 _EGLContext *ctx;
2183 GLint target;
2184 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2185
2186 ctx = _eglGetCurrentContext();
2187 dri2_ctx = dri2_egl_context(ctx);
2188
2189 if (!_eglReleaseTexImage(drv, disp, surf, buffer))
2190 return EGL_FALSE;
2191
2192 switch (surf->TextureTarget) {
2193 case EGL_TEXTURE_2D:
2194 target = GL_TEXTURE_2D;
2195 break;
2196 default:
2197 assert(!"missing texture target");
2198 }
2199
2200 if (dri2_dpy->tex_buffer->base.version >= 3 &&
2201 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
2202 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
2203 target, dri_drawable);
2204 }
2205
2206 return EGL_TRUE;
2207 }
2208
2209 static _EGLImage*
2210 dri2_create_image(const _EGLDriver *drv, _EGLDisplay *disp, _EGLContext *ctx,
2211 EGLenum target, EGLClientBuffer buffer,
2212 const EGLint *attr_list)
2213 {
2214 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2215 return dri2_dpy->vtbl->create_image(drv, disp, ctx, target, buffer,
2216 attr_list);
2217 }
2218
2219 static _EGLImage *
2220 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
2221 {
2222 struct dri2_egl_image *dri2_img;
2223
2224 if (dri_image == NULL) {
2225 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2226 return NULL;
2227 }
2228
2229 dri2_img = malloc(sizeof *dri2_img);
2230 if (!dri2_img) {
2231 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2232 return NULL;
2233 }
2234
2235 _eglInitImage(&dri2_img->base, disp);
2236
2237 dri2_img->dri_image = dri_image;
2238
2239 return &dri2_img->base;
2240 }
2241
2242 /**
2243 * Translate a DRI Image extension error code into an EGL error code.
2244 */
2245 static EGLint
2246 egl_error_from_dri_image_error(int dri_error)
2247 {
2248 switch (dri_error) {
2249 case __DRI_IMAGE_ERROR_SUCCESS:
2250 return EGL_SUCCESS;
2251 case __DRI_IMAGE_ERROR_BAD_ALLOC:
2252 return EGL_BAD_ALLOC;
2253 case __DRI_IMAGE_ERROR_BAD_MATCH:
2254 return EGL_BAD_MATCH;
2255 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
2256 return EGL_BAD_PARAMETER;
2257 case __DRI_IMAGE_ERROR_BAD_ACCESS:
2258 return EGL_BAD_ACCESS;
2259 default:
2260 assert(!"unknown dri_error code");
2261 return EGL_BAD_ALLOC;
2262 }
2263 }
2264
2265 static _EGLImage *
2266 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
2267 EGLClientBuffer buffer,
2268 const EGLint *attr_list)
2269 {
2270 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2271 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2272 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
2273 __DRIimage *dri_image;
2274
2275 if (renderbuffer == 0) {
2276 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2277 return EGL_NO_IMAGE_KHR;
2278 }
2279
2280 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
2281 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2282 return EGL_NO_IMAGE_KHR;
2283 }
2284
2285 if (dri2_dpy->image->base.version >= 17 &&
2286 dri2_dpy->image->createImageFromRenderbuffer2) {
2287 unsigned error = ~0;
2288
2289 dri_image = dri2_dpy->image->createImageFromRenderbuffer2(
2290 dri2_ctx->dri_context, renderbuffer, NULL, &error);
2291
2292 assert(!!dri_image == (error == __DRI_IMAGE_ERROR_SUCCESS));
2293
2294 if (!dri_image) {
2295 _eglError(egl_error_from_dri_image_error(error), "dri2_create_image_khr");
2296 return EGL_NO_IMAGE_KHR;
2297 }
2298 } else {
2299 dri_image = dri2_dpy->image->createImageFromRenderbuffer(
2300 dri2_ctx->dri_context, renderbuffer, NULL);
2301 if (!dri_image) {
2302 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2303 return EGL_NO_IMAGE_KHR;
2304 }
2305 }
2306
2307 return dri2_create_image_from_dri(disp, dri_image);
2308 }
2309
2310 #ifdef HAVE_WAYLAND_PLATFORM
2311
2312 /* This structure describes how a wl_buffer maps to one or more
2313 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
2314 * offsets and strides of the planes in the buffer. This table maps a
2315 * wl_drm format code to a description of the planes in the buffer
2316 * that lets us create a __DRIimage for each of the planes. */
2317
2318 static const struct wl_drm_components_descriptor {
2319 uint32_t dri_components;
2320 EGLint components;
2321 int nplanes;
2322 } wl_drm_components[] = {
2323 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
2324 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
2325 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
2326 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
2327 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
2328 };
2329
2330 static _EGLImage *
2331 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2332 EGLClientBuffer _buffer,
2333 const EGLint *attr_list)
2334 {
2335 struct wl_drm_buffer *buffer;
2336 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2337 const struct wl_drm_components_descriptor *f;
2338 __DRIimage *dri_image;
2339 _EGLImageAttribs attrs;
2340 int32_t plane;
2341
2342 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
2343 (struct wl_resource *) _buffer);
2344 if (!buffer)
2345 return NULL;
2346
2347 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2348 return NULL;
2349
2350 plane = attrs.PlaneWL;
2351 f = buffer->driver_format;
2352 if (plane < 0 || plane >= f->nplanes) {
2353 _eglError(EGL_BAD_PARAMETER,
2354 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
2355 return NULL;
2356 }
2357
2358 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
2359 if (dri_image == NULL && plane == 0)
2360 dri_image = dri2_dpy->image->dupImage(buffer->driver_buffer, NULL);
2361 if (dri_image == NULL) {
2362 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
2363 return NULL;
2364 }
2365
2366 return dri2_create_image_from_dri(disp, dri_image);
2367 }
2368 #endif
2369
2370 static EGLBoolean
2371 dri2_get_sync_values_chromium(_EGLDisplay *disp, _EGLSurface *surf,
2372 EGLuint64KHR *ust, EGLuint64KHR *msc,
2373 EGLuint64KHR *sbc)
2374 {
2375 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2376 if (!dri2_dpy->vtbl->get_sync_values)
2377 return EGL_FALSE;
2378 return dri2_dpy->vtbl->get_sync_values(disp, surf, ust, msc, sbc);
2379 }
2380
2381 /**
2382 * Set the error code after a call to
2383 * dri2_egl_image::dri_image::createImageFromTexture.
2384 */
2385 static void
2386 dri2_create_image_khr_texture_error(int dri_error)
2387 {
2388 EGLint egl_error = egl_error_from_dri_image_error(dri_error);
2389
2390 if (egl_error != EGL_SUCCESS)
2391 _eglError(egl_error, "dri2_create_image_khr_texture");
2392 }
2393
2394 static _EGLImage *
2395 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
2396 EGLenum target,
2397 EGLClientBuffer buffer,
2398 const EGLint *attr_list)
2399 {
2400 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2401 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2402 struct dri2_egl_image *dri2_img;
2403 GLuint texture = (GLuint) (uintptr_t) buffer;
2404 _EGLImageAttribs attrs;
2405 GLuint depth;
2406 GLenum gl_target;
2407 unsigned error;
2408
2409 if (texture == 0) {
2410 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2411 return EGL_NO_IMAGE_KHR;
2412 }
2413
2414 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2415 return EGL_NO_IMAGE_KHR;
2416
2417 switch (target) {
2418 case EGL_GL_TEXTURE_2D_KHR:
2419 if (!disp->Extensions.KHR_gl_texture_2D_image) {
2420 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2421 return EGL_NO_IMAGE_KHR;
2422 }
2423 depth = 0;
2424 gl_target = GL_TEXTURE_2D;
2425 break;
2426 case EGL_GL_TEXTURE_3D_KHR:
2427 if (!disp->Extensions.KHR_gl_texture_3D_image) {
2428 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2429 return EGL_NO_IMAGE_KHR;
2430 }
2431
2432 depth = attrs.GLTextureZOffset;
2433 gl_target = GL_TEXTURE_3D;
2434 break;
2435 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2436 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2437 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2438 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2439 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2440 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2441 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
2442 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2443 return EGL_NO_IMAGE_KHR;
2444 }
2445
2446 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
2447 gl_target = GL_TEXTURE_CUBE_MAP;
2448 break;
2449 default:
2450 unreachable("Unexpected target in dri2_create_image_khr_texture()");
2451 return EGL_NO_IMAGE_KHR;
2452 }
2453
2454 dri2_img = malloc(sizeof *dri2_img);
2455 if (!dri2_img) {
2456 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2457 return EGL_NO_IMAGE_KHR;
2458 }
2459
2460 _eglInitImage(&dri2_img->base, disp);
2461
2462 dri2_img->dri_image =
2463 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
2464 gl_target,
2465 texture,
2466 depth,
2467 attrs.GLTextureLevel,
2468 &error,
2469 dri2_img);
2470 dri2_create_image_khr_texture_error(error);
2471
2472 if (!dri2_img->dri_image) {
2473 free(dri2_img);
2474 return EGL_NO_IMAGE_KHR;
2475 }
2476 return &dri2_img->base;
2477 }
2478
2479 static EGLBoolean
2480 dri2_query_surface(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
2481 EGLint attribute, EGLint *value)
2482 {
2483 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2484 if (!dri2_dpy->vtbl->query_surface)
2485 return _eglQuerySurface(drv, disp, surf, attribute, value);
2486 return dri2_dpy->vtbl->query_surface(drv, disp, surf, attribute, value);
2487 }
2488
2489 static struct wl_buffer*
2490 dri2_create_wayland_buffer_from_image(const _EGLDriver *drv, _EGLDisplay *disp,
2491 _EGLImage *img)
2492 {
2493 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2494 if (!dri2_dpy->vtbl->create_wayland_buffer_from_image)
2495 return NULL;
2496 return dri2_dpy->vtbl->create_wayland_buffer_from_image(drv, disp, img);
2497 }
2498
2499 #ifdef HAVE_LIBDRM
2500 static _EGLImage *
2501 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2502 EGLClientBuffer buffer, const EGLint *attr_list)
2503 {
2504 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2505 EGLint format, name, pitch;
2506 _EGLImageAttribs attrs;
2507 __DRIimage *dri_image;
2508
2509 name = (EGLint) (uintptr_t) buffer;
2510
2511 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2512 return NULL;
2513
2514 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2515 attrs.DRMBufferStrideMESA <= 0) {
2516 _eglError(EGL_BAD_PARAMETER,
2517 "bad width, height or stride");
2518 return NULL;
2519 }
2520
2521 switch (attrs.DRMBufferFormatMESA) {
2522 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2523 format = __DRI_IMAGE_FORMAT_ARGB8888;
2524 pitch = attrs.DRMBufferStrideMESA;
2525 break;
2526 default:
2527 _eglError(EGL_BAD_PARAMETER,
2528 "dri2_create_image_khr: unsupported pixmap depth");
2529 return NULL;
2530 }
2531
2532 dri_image =
2533 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2534 attrs.Width,
2535 attrs.Height,
2536 format,
2537 name,
2538 pitch,
2539 NULL);
2540
2541 return dri2_create_image_from_dri(disp, dri_image);
2542 }
2543
2544 static EGLBoolean
2545 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2546 {
2547 /**
2548 * The spec says:
2549 *
2550 * "Required attributes and their values are as follows:
2551 *
2552 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2553 *
2554 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2555 * by drm_fourcc.h and used as the pixel_format parameter of the
2556 * drm_mode_fb_cmd2 ioctl."
2557 *
2558 * and
2559 *
2560 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2561 * incomplete, EGL_BAD_PARAMETER is generated."
2562 */
2563 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2564 !attrs->DMABufFourCC.IsPresent)
2565 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2566
2567 /**
2568 * Also:
2569 *
2570 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2571 * specified for a plane's pitch or offset isn't supported by EGL,
2572 * EGL_BAD_ACCESS is generated."
2573 */
2574 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2575 if (attrs->DMABufPlanePitches[i].IsPresent &&
2576 attrs->DMABufPlanePitches[i].Value <= 0)
2577 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2578 }
2579
2580 /**
2581 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2582 * attribute values may be given.
2583 *
2584 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2585 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2586 */
2587 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2588 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2589 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2590 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2591 }
2592
2593 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2594 * mandate it, we only accept the same modifier across all planes. */
2595 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2596 if (attrs->DMABufPlaneFds[i].IsPresent) {
2597 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2598 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2599 (attrs->DMABufPlaneModifiersLo[0].Value !=
2600 attrs->DMABufPlaneModifiersLo[i].Value) ||
2601 (attrs->DMABufPlaneModifiersHi[0].Value !=
2602 attrs->DMABufPlaneModifiersHi[i].Value))
2603 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2604 }
2605 }
2606
2607 return EGL_TRUE;
2608 }
2609
2610 /* Returns the total number of planes for the format or zero if it isn't a
2611 * valid fourcc format.
2612 */
2613 static unsigned
2614 dri2_num_fourcc_format_planes(EGLint format)
2615 {
2616 switch (format) {
2617 case DRM_FORMAT_R8:
2618 case DRM_FORMAT_RG88:
2619 case DRM_FORMAT_GR88:
2620 case DRM_FORMAT_R16:
2621 case DRM_FORMAT_GR1616:
2622 case DRM_FORMAT_RGB332:
2623 case DRM_FORMAT_BGR233:
2624 case DRM_FORMAT_XRGB4444:
2625 case DRM_FORMAT_XBGR4444:
2626 case DRM_FORMAT_RGBX4444:
2627 case DRM_FORMAT_BGRX4444:
2628 case DRM_FORMAT_ARGB4444:
2629 case DRM_FORMAT_ABGR4444:
2630 case DRM_FORMAT_RGBA4444:
2631 case DRM_FORMAT_BGRA4444:
2632 case DRM_FORMAT_XRGB1555:
2633 case DRM_FORMAT_XBGR1555:
2634 case DRM_FORMAT_RGBX5551:
2635 case DRM_FORMAT_BGRX5551:
2636 case DRM_FORMAT_ARGB1555:
2637 case DRM_FORMAT_ABGR1555:
2638 case DRM_FORMAT_RGBA5551:
2639 case DRM_FORMAT_BGRA5551:
2640 case DRM_FORMAT_RGB565:
2641 case DRM_FORMAT_BGR565:
2642 case DRM_FORMAT_RGB888:
2643 case DRM_FORMAT_BGR888:
2644 case DRM_FORMAT_XRGB8888:
2645 case DRM_FORMAT_XBGR8888:
2646 case DRM_FORMAT_RGBX8888:
2647 case DRM_FORMAT_BGRX8888:
2648 case DRM_FORMAT_ARGB8888:
2649 case DRM_FORMAT_ABGR8888:
2650 case DRM_FORMAT_RGBA8888:
2651 case DRM_FORMAT_BGRA8888:
2652 case DRM_FORMAT_XRGB2101010:
2653 case DRM_FORMAT_XBGR2101010:
2654 case DRM_FORMAT_RGBX1010102:
2655 case DRM_FORMAT_BGRX1010102:
2656 case DRM_FORMAT_ARGB2101010:
2657 case DRM_FORMAT_ABGR2101010:
2658 case DRM_FORMAT_RGBA1010102:
2659 case DRM_FORMAT_BGRA1010102:
2660 case DRM_FORMAT_XBGR16161616F:
2661 case DRM_FORMAT_ABGR16161616F:
2662 case DRM_FORMAT_YUYV:
2663 case DRM_FORMAT_YVYU:
2664 case DRM_FORMAT_UYVY:
2665 case DRM_FORMAT_VYUY:
2666 case DRM_FORMAT_AYUV:
2667 case DRM_FORMAT_XYUV8888:
2668 return 1;
2669
2670 case DRM_FORMAT_NV12:
2671 case DRM_FORMAT_NV21:
2672 case DRM_FORMAT_NV16:
2673 case DRM_FORMAT_NV61:
2674 case DRM_FORMAT_P010:
2675 case DRM_FORMAT_P012:
2676 case DRM_FORMAT_P016:
2677 return 2;
2678
2679 case DRM_FORMAT_YUV410:
2680 case DRM_FORMAT_YVU410:
2681 case DRM_FORMAT_YUV411:
2682 case DRM_FORMAT_YVU411:
2683 case DRM_FORMAT_YUV420:
2684 case DRM_FORMAT_YVU420:
2685 case DRM_FORMAT_YUV422:
2686 case DRM_FORMAT_YVU422:
2687 case DRM_FORMAT_YUV444:
2688 case DRM_FORMAT_YVU444:
2689 return 3;
2690
2691 default:
2692 return 0;
2693 }
2694 }
2695
2696 /* Returns the total number of file descriptors. Zero indicates an error. */
2697 static unsigned
2698 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2699 {
2700 unsigned plane_n = dri2_num_fourcc_format_planes(attrs->DMABufFourCC.Value);
2701 if (plane_n == 0) {
2702 _eglError(EGL_BAD_MATCH, "unknown drm fourcc format");
2703 return 0;
2704 }
2705
2706 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2707 /**
2708 * The modifiers extension spec says:
2709 *
2710 * "Modifiers may modify any attribute of a buffer import, including
2711 * but not limited to adding extra planes to a format which
2712 * otherwise does not have those planes. As an example, a modifier
2713 * may add a plane for an external compression buffer to a
2714 * single-plane format. The exact meaning and effect of any
2715 * modifier is canonically defined by drm_fourcc.h, not as part of
2716 * this extension."
2717 */
2718 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2719 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2720 plane_n = i + 1;
2721 }
2722 }
2723
2724 /**
2725 * The spec says:
2726 *
2727 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2728 * incomplete, EGL_BAD_PARAMETER is generated."
2729 */
2730 for (unsigned i = 0; i < plane_n; ++i) {
2731 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2732 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2733 !attrs->DMABufPlanePitches[i].IsPresent) {
2734 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2735 return 0;
2736 }
2737 }
2738
2739 /**
2740 * The spec also says:
2741 *
2742 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2743 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2744 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2745 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2746 */
2747 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2748 if (attrs->DMABufPlaneFds[i].IsPresent ||
2749 attrs->DMABufPlaneOffsets[i].IsPresent ||
2750 attrs->DMABufPlanePitches[i].IsPresent) {
2751 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2752 return 0;
2753 }
2754 }
2755
2756 return plane_n;
2757 }
2758
2759 static EGLBoolean
2760 dri2_query_dma_buf_formats(const _EGLDriver *drv, _EGLDisplay *disp,
2761 EGLint max, EGLint *formats, EGLint *count)
2762 {
2763 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2764 if (max < 0 || (max > 0 && formats == NULL))
2765 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2766
2767 if (dri2_dpy->image->base.version < 15 ||
2768 dri2_dpy->image->queryDmaBufFormats == NULL)
2769 return EGL_FALSE;
2770
2771 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2772 formats, count))
2773 return EGL_FALSE;
2774
2775 if (max > 0) {
2776 /* Assert that all of the formats returned are actually fourcc formats.
2777 * Some day, if we want the internal interface function to be able to
2778 * return the fake fourcc formats defined in dri_interface.h, we'll have
2779 * to do something more clever here to pair the list down to just real
2780 * fourcc formats so that we don't leak the fake internal ones.
2781 */
2782 for (int i = 0; i < *count; i++) {
2783 assert(dri2_num_fourcc_format_planes(formats[i]) > 0);
2784 }
2785 }
2786
2787 return EGL_TRUE;
2788 }
2789
2790 static EGLBoolean
2791 dri2_query_dma_buf_modifiers(const _EGLDriver *drv, _EGLDisplay *disp, EGLint format,
2792 EGLint max, EGLuint64KHR *modifiers,
2793 EGLBoolean *external_only, EGLint *count)
2794 {
2795 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2796
2797 if (dri2_num_fourcc_format_planes(format) == 0)
2798 return _eglError(EGL_BAD_PARAMETER, "invalid fourcc format");
2799
2800 if (max < 0)
2801 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2802
2803 if (max > 0 && modifiers == NULL)
2804 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2805
2806 if (dri2_dpy->image->base.version < 15 ||
2807 dri2_dpy->image->queryDmaBufModifiers == NULL)
2808 return EGL_FALSE;
2809
2810 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2811 max, modifiers,
2812 (unsigned int *) external_only,
2813 count) == false)
2814 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2815
2816 return EGL_TRUE;
2817 }
2818
2819 /**
2820 * The spec says:
2821 *
2822 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2823 * EGL will take a reference to the dma_buf(s) which it will release at any
2824 * time while the EGLDisplay is initialized. It is the responsibility of the
2825 * application to close the dma_buf file descriptors."
2826 *
2827 * Therefore we must never close or otherwise modify the file descriptors.
2828 */
2829 _EGLImage *
2830 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2831 EGLClientBuffer buffer, const EGLint *attr_list)
2832 {
2833 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2834 _EGLImage *res;
2835 _EGLImageAttribs attrs;
2836 __DRIimage *dri_image;
2837 unsigned num_fds;
2838 int fds[DMA_BUF_MAX_PLANES];
2839 int pitches[DMA_BUF_MAX_PLANES];
2840 int offsets[DMA_BUF_MAX_PLANES];
2841 uint64_t modifier;
2842 bool has_modifier = false;
2843 unsigned error;
2844
2845 /**
2846 * The spec says:
2847 *
2848 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2849 * error EGL_BAD_PARAMETER is generated."
2850 */
2851 if (buffer != NULL) {
2852 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2853 return NULL;
2854 }
2855
2856 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2857 return NULL;
2858
2859 if (!dri2_check_dma_buf_attribs(&attrs))
2860 return NULL;
2861
2862 num_fds = dri2_check_dma_buf_format(&attrs);
2863 if (!num_fds)
2864 return NULL;
2865
2866 for (unsigned i = 0; i < num_fds; ++i) {
2867 fds[i] = attrs.DMABufPlaneFds[i].Value;
2868 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2869 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2870 }
2871
2872 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2873 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2874 * attrs.DMABufPlaneModifiersHi[0] */
2875 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2876 modifier = combine_u32_into_u64(attrs.DMABufPlaneModifiersHi[0].Value,
2877 attrs.DMABufPlaneModifiersLo[0].Value);
2878 has_modifier = true;
2879 }
2880
2881 if (has_modifier) {
2882 if (dri2_dpy->image->base.version < 15 ||
2883 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2884 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2885 return EGL_NO_IMAGE_KHR;
2886 }
2887 dri_image =
2888 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2889 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2890 modifier, fds, num_fds, pitches, offsets,
2891 attrs.DMABufYuvColorSpaceHint.Value,
2892 attrs.DMABufSampleRangeHint.Value,
2893 attrs.DMABufChromaHorizontalSiting.Value,
2894 attrs.DMABufChromaVerticalSiting.Value,
2895 &error,
2896 NULL);
2897 }
2898 else {
2899 dri_image =
2900 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2901 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2902 fds, num_fds, pitches, offsets,
2903 attrs.DMABufYuvColorSpaceHint.Value,
2904 attrs.DMABufSampleRangeHint.Value,
2905 attrs.DMABufChromaHorizontalSiting.Value,
2906 attrs.DMABufChromaVerticalSiting.Value,
2907 &error,
2908 NULL);
2909 }
2910 dri2_create_image_khr_texture_error(error);
2911
2912 if (!dri_image)
2913 return EGL_NO_IMAGE_KHR;
2914
2915 res = dri2_create_image_from_dri(disp, dri_image);
2916
2917 return res;
2918 }
2919 static _EGLImage *
2920 dri2_create_drm_image_mesa(const _EGLDriver *drv, _EGLDisplay *disp,
2921 const EGLint *attr_list)
2922 {
2923 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2924 struct dri2_egl_image *dri2_img;
2925 _EGLImageAttribs attrs;
2926 unsigned int dri_use, valid_mask;
2927 int format;
2928
2929 (void) drv;
2930
2931 if (!attr_list) {
2932 _eglError(EGL_BAD_PARAMETER, __func__);
2933 return EGL_NO_IMAGE_KHR;
2934 }
2935
2936 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2937 return EGL_NO_IMAGE_KHR;
2938
2939 if (attrs.Width <= 0 || attrs.Height <= 0) {
2940 _eglError(EGL_BAD_PARAMETER, __func__);
2941 return EGL_NO_IMAGE_KHR;
2942 }
2943
2944 switch (attrs.DRMBufferFormatMESA) {
2945 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2946 format = __DRI_IMAGE_FORMAT_ARGB8888;
2947 break;
2948 default:
2949 _eglError(EGL_BAD_PARAMETER, __func__);
2950 return EGL_NO_IMAGE_KHR;
2951 }
2952
2953 valid_mask =
2954 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2955 EGL_DRM_BUFFER_USE_SHARE_MESA |
2956 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2957 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2958 _eglError(EGL_BAD_PARAMETER, __func__);
2959 return EGL_NO_IMAGE_KHR;
2960 }
2961
2962 dri_use = 0;
2963 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2964 dri_use |= __DRI_IMAGE_USE_SHARE;
2965 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2966 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2967 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2968 dri_use |= __DRI_IMAGE_USE_CURSOR;
2969
2970 dri2_img = malloc(sizeof *dri2_img);
2971 if (!dri2_img) {
2972 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2973 return EGL_NO_IMAGE_KHR;
2974 }
2975
2976 _eglInitImage(&dri2_img->base, disp);
2977
2978 dri2_img->dri_image =
2979 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2980 attrs.Width, attrs.Height,
2981 format, dri_use, dri2_img);
2982 if (dri2_img->dri_image == NULL) {
2983 free(dri2_img);
2984 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2985 return EGL_NO_IMAGE_KHR;
2986 }
2987
2988 return &dri2_img->base;
2989 }
2990
2991 static EGLBoolean
2992 dri2_export_drm_image_mesa(const _EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
2993 EGLint *name, EGLint *handle, EGLint *stride)
2994 {
2995 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2996 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
2997
2998 (void) drv;
2999
3000 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
3001 __DRI_IMAGE_ATTRIB_NAME, name))
3002 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
3003
3004 if (handle)
3005 dri2_dpy->image->queryImage(dri2_img->dri_image,
3006 __DRI_IMAGE_ATTRIB_HANDLE, handle);
3007
3008 if (stride)
3009 dri2_dpy->image->queryImage(dri2_img->dri_image,
3010 __DRI_IMAGE_ATTRIB_STRIDE, stride);
3011
3012 return EGL_TRUE;
3013 }
3014
3015 /**
3016 * Checks if we can support EGL_MESA_image_dma_buf_export on this image.
3017
3018 * The spec provides a boolean return for the driver to reject exporting for
3019 * basically any reason, but doesn't specify any particular error cases. For
3020 * now, we just fail if we don't have a DRM fourcc for the format.
3021 */
3022 static bool
3023 dri2_can_export_dma_buf_image(_EGLDisplay *disp, _EGLImage *img)
3024 {
3025 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3026 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3027 EGLint fourcc;
3028
3029 if (!dri2_dpy->image->queryImage(dri2_img->dri_image,
3030 __DRI_IMAGE_ATTRIB_FOURCC, &fourcc)) {
3031 return false;
3032 }
3033
3034 return true;
3035 }
3036
3037 static EGLBoolean
3038 dri2_export_dma_buf_image_query_mesa(const _EGLDriver *drv, _EGLDisplay *disp,
3039 _EGLImage *img,
3040 EGLint *fourcc, EGLint *nplanes,
3041 EGLuint64KHR *modifiers)
3042 {
3043 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3044 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3045 int num_planes;
3046
3047 (void) drv;
3048
3049 if (!dri2_can_export_dma_buf_image(disp, img))
3050 return EGL_FALSE;
3051
3052 dri2_dpy->image->queryImage(dri2_img->dri_image,
3053 __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes);
3054 if (nplanes)
3055 *nplanes = num_planes;
3056
3057 if (fourcc)
3058 dri2_dpy->image->queryImage(dri2_img->dri_image,
3059 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
3060
3061 if (modifiers) {
3062 int mod_hi, mod_lo;
3063 uint64_t modifier = DRM_FORMAT_MOD_INVALID;
3064 bool query;
3065
3066 query = dri2_dpy->image->queryImage(dri2_img->dri_image,
3067 __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
3068 &mod_hi);
3069 query &= dri2_dpy->image->queryImage(dri2_img->dri_image,
3070 __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
3071 &mod_lo);
3072 if (query)
3073 modifier = combine_u32_into_u64 (mod_hi, mod_lo);
3074
3075 for (int i = 0; i < num_planes; i++)
3076 modifiers[i] = modifier;
3077 }
3078
3079 return EGL_TRUE;
3080 }
3081
3082 static EGLBoolean
3083 dri2_export_dma_buf_image_mesa(const _EGLDriver *drv, _EGLDisplay *disp, _EGLImage *img,
3084 int *fds, EGLint *strides, EGLint *offsets)
3085 {
3086 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3087 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3088 EGLint nplanes;
3089
3090 (void) drv;
3091
3092 if (!dri2_can_export_dma_buf_image(disp, img))
3093 return EGL_FALSE;
3094
3095 /* EGL_MESA_image_dma_buf_export spec says:
3096 * "If the number of fds is less than the number of planes, then
3097 * subsequent fd slots should contain -1."
3098 */
3099 if (fds) {
3100 /* Query nplanes so that we know how big the given array is. */
3101 dri2_dpy->image->queryImage(dri2_img->dri_image,
3102 __DRI_IMAGE_ATTRIB_NUM_PLANES, &nplanes);
3103 memset(fds, -1, nplanes * sizeof(int));
3104 }
3105
3106 /* rework later to provide multiple fds/strides/offsets */
3107 if (fds)
3108 dri2_dpy->image->queryImage(dri2_img->dri_image,
3109 __DRI_IMAGE_ATTRIB_FD, fds);
3110
3111 if (strides)
3112 dri2_dpy->image->queryImage(dri2_img->dri_image,
3113 __DRI_IMAGE_ATTRIB_STRIDE, strides);
3114
3115 if (offsets) {
3116 int img_offset;
3117 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
3118 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
3119 if (ret)
3120 offsets[0] = img_offset;
3121 else
3122 offsets[0] = 0;
3123 }
3124
3125 return EGL_TRUE;
3126 }
3127
3128 #endif
3129
3130 _EGLImage *
3131 dri2_create_image_khr(const _EGLDriver *drv, _EGLDisplay *disp,
3132 _EGLContext *ctx, EGLenum target,
3133 EGLClientBuffer buffer, const EGLint *attr_list)
3134 {
3135 (void) drv;
3136
3137 switch (target) {
3138 case EGL_GL_TEXTURE_2D_KHR:
3139 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
3140 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
3141 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
3142 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
3143 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
3144 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
3145 case EGL_GL_TEXTURE_3D_KHR:
3146 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
3147 case EGL_GL_RENDERBUFFER_KHR:
3148 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
3149 #ifdef HAVE_LIBDRM
3150 case EGL_DRM_BUFFER_MESA:
3151 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
3152 case EGL_LINUX_DMA_BUF_EXT:
3153 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
3154 #endif
3155 #ifdef HAVE_WAYLAND_PLATFORM
3156 case EGL_WAYLAND_BUFFER_WL:
3157 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
3158 #endif
3159 default:
3160 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
3161 return EGL_NO_IMAGE_KHR;
3162 }
3163 }
3164
3165 static EGLBoolean
3166 dri2_destroy_image_khr(const _EGLDriver *drv, _EGLDisplay *disp, _EGLImage *image)
3167 {
3168 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3169 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
3170
3171 (void) drv;
3172
3173 dri2_dpy->image->destroyImage(dri2_img->dri_image);
3174 free(dri2_img);
3175
3176 return EGL_TRUE;
3177 }
3178
3179 #ifdef HAVE_WAYLAND_PLATFORM
3180
3181 static void
3182 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
3183 struct wl_drm_buffer *buffer)
3184 {
3185 _EGLDisplay *disp = user_data;
3186 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3187 __DRIimage *img;
3188 int dri_components = 0;
3189
3190 if (fd == -1)
3191 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
3192 buffer->width,
3193 buffer->height,
3194 buffer->format,
3195 (int*)&name, 1,
3196 buffer->stride,
3197 buffer->offset,
3198 NULL);
3199 else
3200 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
3201 buffer->width,
3202 buffer->height,
3203 buffer->format,
3204 &fd, 1,
3205 buffer->stride,
3206 buffer->offset,
3207 NULL);
3208
3209 if (img == NULL)
3210 return;
3211
3212 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
3213
3214 buffer->driver_format = NULL;
3215 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
3216 if (wl_drm_components[i].dri_components == dri_components)
3217 buffer->driver_format = &wl_drm_components[i];
3218
3219 if (buffer->driver_format == NULL)
3220 dri2_dpy->image->destroyImage(img);
3221 else
3222 buffer->driver_buffer = img;
3223 }
3224
3225 static void
3226 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
3227 {
3228 _EGLDisplay *disp = user_data;
3229 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3230
3231 dri2_dpy->image->destroyImage(buffer->driver_buffer);
3232 }
3233
3234 static EGLBoolean
3235 dri2_bind_wayland_display_wl(const _EGLDriver *drv, _EGLDisplay *disp,
3236 struct wl_display *wl_dpy)
3237 {
3238 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3239 const struct wayland_drm_callbacks wl_drm_callbacks = {
3240 .authenticate = (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate,
3241 .reference_buffer = dri2_wl_reference_buffer,
3242 .release_buffer = dri2_wl_release_buffer,
3243 .is_format_supported = dri2_wl_is_format_supported
3244 };
3245 int flags = 0;
3246 uint64_t cap;
3247
3248 (void) drv;
3249
3250 if (dri2_dpy->wl_server_drm)
3251 return EGL_FALSE;
3252
3253 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
3254 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
3255 dri2_dpy->image->base.version >= 7 &&
3256 dri2_dpy->image->createImageFromFds != NULL)
3257 flags |= WAYLAND_DRM_PRIME;
3258
3259 dri2_dpy->wl_server_drm =
3260 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
3261 &wl_drm_callbacks, disp, flags);
3262
3263 if (!dri2_dpy->wl_server_drm)
3264 return EGL_FALSE;
3265
3266 #ifdef HAVE_DRM_PLATFORM
3267 /* We have to share the wl_drm instance with gbm, so gbm can convert
3268 * wl_buffers to gbm bos. */
3269 if (dri2_dpy->gbm_dri)
3270 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
3271 #endif
3272
3273 return EGL_TRUE;
3274 }
3275
3276 static EGLBoolean
3277 dri2_unbind_wayland_display_wl(const _EGLDriver *drv, _EGLDisplay *disp,
3278 struct wl_display *wl_dpy)
3279 {
3280 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3281
3282 (void) drv;
3283
3284 if (!dri2_dpy->wl_server_drm)
3285 return EGL_FALSE;
3286
3287 wayland_drm_uninit(dri2_dpy->wl_server_drm);
3288 dri2_dpy->wl_server_drm = NULL;
3289
3290 return EGL_TRUE;
3291 }
3292
3293 static EGLBoolean
3294 dri2_query_wayland_buffer_wl(const _EGLDriver *drv, _EGLDisplay *disp,
3295 struct wl_resource *buffer_resource,
3296 EGLint attribute, EGLint *value)
3297 {
3298 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3299 struct wl_drm_buffer *buffer;
3300 const struct wl_drm_components_descriptor *format;
3301
3302 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
3303 if (!buffer)
3304 return EGL_FALSE;
3305
3306 format = buffer->driver_format;
3307 switch (attribute) {
3308 case EGL_TEXTURE_FORMAT:
3309 *value = format->components;
3310 return EGL_TRUE;
3311 case EGL_WIDTH:
3312 *value = buffer->width;
3313 return EGL_TRUE;
3314 case EGL_HEIGHT:
3315 *value = buffer->height;
3316 return EGL_TRUE;
3317 }
3318
3319 return EGL_FALSE;
3320 }
3321 #endif
3322
3323 static void
3324 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
3325 {
3326 p_atomic_inc(&sync->refcount);
3327 }
3328
3329 static void
3330 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
3331 struct dri2_egl_sync *dri2_sync)
3332 {
3333 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
3334 switch (dri2_sync->base.Type) {
3335 case EGL_SYNC_REUSABLE_KHR:
3336 cnd_destroy(&dri2_sync->cond);
3337 break;
3338 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3339 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
3340 close(dri2_sync->base.SyncFd);
3341 break;
3342 default:
3343 break;
3344 }
3345
3346 if (dri2_sync->fence)
3347 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
3348
3349 free(dri2_sync);
3350 }
3351 }
3352
3353 static _EGLSync *
3354 dri2_create_sync(const _EGLDriver *drv, _EGLDisplay *disp,
3355 EGLenum type, const EGLAttrib *attrib_list)
3356 {
3357 _EGLContext *ctx = _eglGetCurrentContext();
3358 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3359 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3360 struct dri2_egl_sync *dri2_sync;
3361 EGLint ret;
3362 pthread_condattr_t attr;
3363
3364 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
3365 if (!dri2_sync) {
3366 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3367 return NULL;
3368 }
3369
3370 if (!_eglInitSync(&dri2_sync->base, disp, type, attrib_list)) {
3371 free(dri2_sync);
3372 return NULL;
3373 }
3374
3375 switch (type) {
3376 case EGL_SYNC_FENCE_KHR:
3377 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
3378 if (!dri2_sync->fence) {
3379 /* Why did it fail? DRI doesn't return an error code, so we emit
3380 * a generic EGL error that doesn't communicate user error.
3381 */
3382 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3383 free(dri2_sync);
3384 return NULL;
3385 }
3386 break;
3387
3388 case EGL_SYNC_CL_EVENT_KHR:
3389 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
3390 dri2_dpy->dri_screen,
3391 dri2_sync->base.CLEvent);
3392 /* this can only happen if the cl_event passed in is invalid. */
3393 if (!dri2_sync->fence) {
3394 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3395 free(dri2_sync);
3396 return NULL;
3397 }
3398
3399 /* the initial status must be "signaled" if the cl_event is signaled */
3400 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
3401 dri2_sync->fence, 0, 0))
3402 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3403 break;
3404
3405 case EGL_SYNC_REUSABLE_KHR:
3406 /* intialize attr */
3407 ret = pthread_condattr_init(&attr);
3408
3409 if (ret) {
3410 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3411 free(dri2_sync);
3412 return NULL;
3413 }
3414
3415 /* change clock attribute to CLOCK_MONOTONIC */
3416 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
3417
3418 if (ret) {
3419 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3420 free(dri2_sync);
3421 return NULL;
3422 }
3423
3424 ret = pthread_cond_init(&dri2_sync->cond, &attr);
3425
3426 if (ret) {
3427 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3428 free(dri2_sync);
3429 return NULL;
3430 }
3431
3432 /* initial status of reusable sync must be "unsignaled" */
3433 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
3434 break;
3435
3436 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3437 if (dri2_dpy->fence->create_fence_fd) {
3438 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
3439 dri2_ctx->dri_context,
3440 dri2_sync->base.SyncFd);
3441 }
3442 if (!dri2_sync->fence) {
3443 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3444 free(dri2_sync);
3445 return NULL;
3446 }
3447 break;
3448 }
3449
3450 p_atomic_set(&dri2_sync->refcount, 1);
3451 return &dri2_sync->base;
3452 }
3453
3454 static EGLBoolean
3455 dri2_destroy_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3456 {
3457 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3458 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3459 EGLint ret = EGL_TRUE;
3460 EGLint err;
3461
3462 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
3463 * then unlock all threads possibly blocked by the reusable sync before
3464 * destroying it.
3465 */
3466 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
3467 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3468 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3469 /* unblock all threads currently blocked by sync */
3470 err = cnd_broadcast(&dri2_sync->cond);
3471
3472 if (err) {
3473 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
3474 ret = EGL_FALSE;
3475 }
3476 }
3477
3478 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3479
3480 return ret;
3481 }
3482
3483 static EGLint
3484 dri2_dup_native_fence_fd(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3485 {
3486 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3487 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3488
3489 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
3490
3491 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3492 /* try to retrieve the actual native fence fd.. if rendering is
3493 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
3494 */
3495 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
3496 dri2_sync->fence);
3497 }
3498
3499 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3500 /* if native fence fd still not created, return an error: */
3501 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
3502 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
3503 }
3504
3505 return os_dupfd_cloexec(sync->SyncFd);
3506 }
3507
3508 static void
3509 dri2_set_blob_cache_funcs(const _EGLDriver *drv, _EGLDisplay *disp,
3510 EGLSetBlobFuncANDROID set,
3511 EGLGetBlobFuncANDROID get)
3512 {
3513 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3514 dri2_dpy->blob->set_cache_funcs(dri2_dpy->dri_screen,
3515 disp->BlobCacheSet,
3516 disp->BlobCacheGet);
3517 }
3518
3519 static EGLint
3520 dri2_client_wait_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3521 EGLint flags, EGLTime timeout)
3522 {
3523 _EGLContext *ctx = _eglGetCurrentContext();
3524 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3525 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3526 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3527 unsigned wait_flags = 0;
3528
3529 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
3530
3531 /* The EGL_KHR_fence_sync spec states:
3532 *
3533 * "If no context is current for the bound API,
3534 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
3535 */
3536 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
3537 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
3538
3539 /* the sync object should take a reference while waiting */
3540 dri2_egl_ref_sync(dri2_sync);
3541
3542 switch (sync->Type) {
3543 case EGL_SYNC_FENCE_KHR:
3544 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3545 case EGL_SYNC_CL_EVENT_KHR:
3546 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
3547 dri2_sync->fence, wait_flags,
3548 timeout))
3549 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3550 else
3551 ret = EGL_TIMEOUT_EXPIRED_KHR;
3552 break;
3553
3554 case EGL_SYNC_REUSABLE_KHR:
3555 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
3556 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
3557 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
3558 dri2_gl_flush();
3559 }
3560
3561 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
3562 if (timeout == EGL_FOREVER_KHR) {
3563 mtx_lock(&dri2_sync->mutex);
3564 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
3565 mtx_unlock(&dri2_sync->mutex);
3566 } else {
3567 /* if reusable sync has not been yet signaled */
3568 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
3569 /* timespecs for cnd_timedwait */
3570 struct timespec current;
3571 struct timespec expire;
3572
3573 /* We override the clock to monotonic when creating the condition
3574 * variable. */
3575 clock_gettime(CLOCK_MONOTONIC, &current);
3576
3577 /* calculating when to expire */
3578 expire.tv_nsec = timeout % 1000000000L;
3579 expire.tv_sec = timeout / 1000000000L;
3580
3581 expire.tv_nsec += current.tv_nsec;
3582 expire.tv_sec += current.tv_sec;
3583
3584 /* expire.nsec now is a number between 0 and 1999999998 */
3585 if (expire.tv_nsec > 999999999L) {
3586 expire.tv_sec++;
3587 expire.tv_nsec -= 1000000000L;
3588 }
3589
3590 mtx_lock(&dri2_sync->mutex);
3591 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3592 mtx_unlock(&dri2_sync->mutex);
3593
3594 if (ret == thrd_busy) {
3595 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3596 ret = EGL_TIMEOUT_EXPIRED_KHR;
3597 } else {
3598 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3599 ret = EGL_FALSE;
3600 }
3601 }
3602 }
3603 }
3604 break;
3605 }
3606 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3607
3608 return ret;
3609 }
3610
3611 static EGLBoolean
3612 dri2_signal_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync,
3613 EGLenum mode)
3614 {
3615 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3616 EGLint ret;
3617
3618 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3619 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3620
3621 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3622 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3623
3624 dri2_sync->base.SyncStatus = mode;
3625
3626 if (mode == EGL_SIGNALED_KHR) {
3627 ret = cnd_broadcast(&dri2_sync->cond);
3628
3629 /* fail to broadcast */
3630 if (ret)
3631 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3632 }
3633
3634 return EGL_TRUE;
3635 }
3636
3637 static EGLint
3638 dri2_server_wait_sync(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSync *sync)
3639 {
3640 _EGLContext *ctx = _eglGetCurrentContext();
3641 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3642 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3643 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3644
3645 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3646 dri2_sync->fence, 0);
3647 return EGL_TRUE;
3648 }
3649
3650 static int
3651 dri2_interop_query_device_info(_EGLDisplay *disp, _EGLContext *ctx,
3652 struct mesa_glinterop_device_info *out)
3653 {
3654 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3655 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3656
3657 if (!dri2_dpy->interop)
3658 return MESA_GLINTEROP_UNSUPPORTED;
3659
3660 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3661 }
3662
3663 static int
3664 dri2_interop_export_object(_EGLDisplay *disp, _EGLContext *ctx,
3665 struct mesa_glinterop_export_in *in,
3666 struct mesa_glinterop_export_out *out)
3667 {
3668 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3669 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3670
3671 if (!dri2_dpy->interop)
3672 return MESA_GLINTEROP_UNSUPPORTED;
3673
3674 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3675 }
3676
3677 const _EGLDriver _eglDriver = {
3678 .Initialize = dri2_initialize,
3679 .Terminate = dri2_terminate,
3680 .CreateContext = dri2_create_context,
3681 .DestroyContext = dri2_destroy_context,
3682 .MakeCurrent = dri2_make_current,
3683 .CreateWindowSurface = dri2_create_window_surface,
3684 .CreatePixmapSurface = dri2_create_pixmap_surface,
3685 .CreatePbufferSurface = dri2_create_pbuffer_surface,
3686 .DestroySurface = dri2_destroy_surface,
3687 .GetProcAddress = dri2_get_proc_address,
3688 .WaitClient = dri2_wait_client,
3689 .WaitNative = dri2_wait_native,
3690 .BindTexImage = dri2_bind_tex_image,
3691 .ReleaseTexImage = dri2_release_tex_image,
3692 .SwapInterval = dri2_swap_interval,
3693 .SwapBuffers = dri2_swap_buffers,
3694 .SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage,
3695 .SwapBuffersRegionNOK = dri2_swap_buffers_region,
3696 .SetDamageRegion = dri2_set_damage_region,
3697 .PostSubBufferNV = dri2_post_sub_buffer,
3698 .CopyBuffers = dri2_copy_buffers,
3699 .QueryBufferAge = dri2_query_buffer_age,
3700 .CreateImageKHR = dri2_create_image,
3701 .DestroyImageKHR = dri2_destroy_image_khr,
3702 .CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image,
3703 .QuerySurface = dri2_query_surface,
3704 .QueryDriverName = dri2_query_driver_name,
3705 .QueryDriverConfig = dri2_query_driver_config,
3706 #ifdef HAVE_LIBDRM
3707 .CreateDRMImageMESA = dri2_create_drm_image_mesa,
3708 .ExportDRMImageMESA = dri2_export_drm_image_mesa,
3709 .ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa,
3710 .ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa,
3711 .QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats,
3712 .QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers,
3713 #endif
3714 #ifdef HAVE_WAYLAND_PLATFORM
3715 .BindWaylandDisplayWL = dri2_bind_wayland_display_wl,
3716 .UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl,
3717 .QueryWaylandBufferWL = dri2_query_wayland_buffer_wl,
3718 #endif
3719 .GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium,
3720 .CreateSyncKHR = dri2_create_sync,
3721 .ClientWaitSyncKHR = dri2_client_wait_sync,
3722 .SignalSyncKHR = dri2_signal_sync,
3723 .WaitSyncKHR = dri2_server_wait_sync,
3724 .DestroySyncKHR = dri2_destroy_sync,
3725 .GLInteropQueryDeviceInfo = dri2_interop_query_device_info,
3726 .GLInteropExportObject = dri2_interop_export_object,
3727 .DupNativeFenceFDANDROID = dri2_dup_native_fence_fd,
3728 .SetBlobCacheFuncsANDROID = dri2_set_blob_cache_funcs,
3729 };