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
dri_set_background_context(void * loaderPrivate)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
dri2_gl_flush()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
dri_is_thread_safe(void * loaderPrivate)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
dri2_get_pbuffer_drawable_info(__DRIdrawable * draw,int * x,int * y,int * w,int * h,void * loaderPrivate)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
dri2_get_bytes_per_pixel(struct dri2_egl_surface * dri2_surf)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
dri2_put_image(__DRIdrawable * draw,int op,int x,int y,int w,int h,char * data,void * loaderPrivate)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
dri2_get_image(__DRIdrawable * read,int x,int y,int w,int h,char * data,void * loaderPrivate)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 *
dri2_get_dri_config(struct dri2_egl_config * conf,EGLint surface_type,EGLenum colorspace)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
dri2_match_config(const _EGLConfig * conf,const _EGLConfig * criteria)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
dri2_get_shifts_and_sizes(const __DRIcoreExtension * core,const __DRIconfig * config,int * shifts,unsigned int * sizes)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
dri2_get_render_type_float(const __DRIcoreExtension * core,const __DRIconfig * config,bool * is_float)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
dri2_image_format_for_pbuffer_config(struct dri2_egl_display * dri2_dpy,const __DRIconfig * config)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 *
dri2_add_config(_EGLDisplay * disp,const __DRIconfig * dri_config,int id,EGLint surface_type,const EGLint * attr_list,const int * rgba_shifts,const unsigned int * rgba_sizes)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
dri2_add_pbuffer_configs_for_visuals(_EGLDisplay * disp)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 *
dri2_lookup_egl_image(__DRIscreen * screen,void * image,void * data)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 mtx_lock(&disp->Mutex);
689 img = _eglLookupImage(image, disp);
690 mtx_unlock(&disp->Mutex);
691
692 if (img == NULL) {
693 _eglError(EGL_BAD_PARAMETER, "dri2_lookup_egl_image");
694 return NULL;
695 }
696
697 dri2_img = dri2_egl_image(image);
698
699 return dri2_img->dri_image;
700 }
701
702 const __DRIimageLookupExtension image_lookup_extension = {
703 .base = { __DRI_IMAGE_LOOKUP, 1 },
704
705 .lookupEGLImage = dri2_lookup_egl_image
706 };
707
708 struct dri2_extension_match {
709 const char *name;
710 int version;
711 int offset;
712 };
713
714 static const struct dri2_extension_match dri3_driver_extensions[] = {
715 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
716 { __DRI_IMAGE_DRIVER, 1, offsetof(struct dri2_egl_display, image_driver) },
717 { NULL, 0, 0 }
718 };
719
720 static const struct dri2_extension_match dri2_driver_extensions[] = {
721 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
722 { __DRI_DRI2, 2, offsetof(struct dri2_egl_display, dri2) },
723 { NULL, 0, 0 }
724 };
725
726 static const struct dri2_extension_match dri2_core_extensions[] = {
727 { __DRI2_FLUSH, 1, offsetof(struct dri2_egl_display, flush) },
728 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
729 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
730 { NULL, 0, 0 }
731 };
732
733 static const struct dri2_extension_match swrast_driver_extensions[] = {
734 { __DRI_CORE, 1, offsetof(struct dri2_egl_display, core) },
735 { __DRI_SWRAST, 2, offsetof(struct dri2_egl_display, swrast) },
736 { NULL, 0, 0 }
737 };
738
739 static const struct dri2_extension_match swrast_core_extensions[] = {
740 { __DRI_TEX_BUFFER, 2, offsetof(struct dri2_egl_display, tex_buffer) },
741 { NULL, 0, 0 }
742 };
743
744 static const struct dri2_extension_match optional_driver_extensions[] = {
745 { __DRI_CONFIG_OPTIONS, 1, offsetof(struct dri2_egl_display, configOptions) },
746 { NULL, 0, 0 }
747 };
748
749 static const struct dri2_extension_match optional_core_extensions[] = {
750 { __DRI2_ROBUSTNESS, 1, offsetof(struct dri2_egl_display, robustness) },
751 { __DRI2_NO_ERROR, 1, offsetof(struct dri2_egl_display, no_error) },
752 { __DRI2_CONFIG_QUERY, 1, offsetof(struct dri2_egl_display, config) },
753 { __DRI2_FENCE, 1, offsetof(struct dri2_egl_display, fence) },
754 { __DRI2_BUFFER_DAMAGE, 1, offsetof(struct dri2_egl_display, buffer_damage) },
755 { __DRI2_RENDERER_QUERY, 1, offsetof(struct dri2_egl_display, rendererQuery) },
756 { __DRI2_INTEROP, 1, offsetof(struct dri2_egl_display, interop) },
757 { __DRI_IMAGE, 1, offsetof(struct dri2_egl_display, image) },
758 { __DRI2_FLUSH_CONTROL, 1, offsetof(struct dri2_egl_display, flush_control) },
759 { __DRI2_BLOB, 1, offsetof(struct dri2_egl_display, blob) },
760 { __DRI_MUTABLE_RENDER_BUFFER_DRIVER, 1, offsetof(struct dri2_egl_display, mutable_render_buffer) },
761 { NULL, 0, 0 }
762 };
763
764 static EGLBoolean
dri2_bind_extensions(struct dri2_egl_display * dri2_dpy,const struct dri2_extension_match * matches,const __DRIextension ** extensions,bool optional)765 dri2_bind_extensions(struct dri2_egl_display *dri2_dpy,
766 const struct dri2_extension_match *matches,
767 const __DRIextension **extensions,
768 bool optional)
769 {
770 int ret = EGL_TRUE;
771 void *field;
772
773 for (int i = 0; extensions[i]; i++) {
774 _eglLog(_EGL_DEBUG, "found extension `%s'", extensions[i]->name);
775 for (int j = 0; matches[j].name; j++) {
776 if (strcmp(extensions[i]->name, matches[j].name) == 0 &&
777 extensions[i]->version >= matches[j].version) {
778 field = ((char *) dri2_dpy + matches[j].offset);
779 *(const __DRIextension **) field = extensions[i];
780 _eglLog(_EGL_INFO, "found extension %s version %d",
781 extensions[i]->name, extensions[i]->version);
782 break;
783 }
784 }
785 }
786
787 for (int j = 0; matches[j].name; j++) {
788 field = ((char *) dri2_dpy + matches[j].offset);
789 if (*(const __DRIextension **) field == NULL) {
790 if (optional) {
791 _eglLog(_EGL_DEBUG, "did not find optional extension %s version %d",
792 matches[j].name, matches[j].version);
793 } else {
794 _eglLog(_EGL_WARNING, "did not find extension %s version %d",
795 matches[j].name, matches[j].version);
796 ret = EGL_FALSE;
797 }
798 }
799 }
800
801 return ret;
802 }
803
804 static const __DRIextension **
dri2_open_driver(_EGLDisplay * disp)805 dri2_open_driver(_EGLDisplay *disp)
806 {
807 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
808 static const char *search_path_vars[] = {
809 "LIBGL_DRIVERS_PATH",
810 NULL,
811 };
812
813 return loader_open_driver(dri2_dpy->driver_name,
814 &dri2_dpy->driver,
815 search_path_vars);
816 }
817
818 static EGLBoolean
dri2_load_driver_common(_EGLDisplay * disp,const struct dri2_extension_match * driver_extensions)819 dri2_load_driver_common(_EGLDisplay *disp,
820 const struct dri2_extension_match *driver_extensions)
821 {
822 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
823 const __DRIextension **extensions;
824
825 extensions = dri2_open_driver(disp);
826 if (!extensions)
827 return EGL_FALSE;
828
829 if (!dri2_bind_extensions(dri2_dpy, driver_extensions, extensions, false)) {
830 dlclose(dri2_dpy->driver);
831 dri2_dpy->driver = NULL;
832 return EGL_FALSE;
833 }
834 dri2_dpy->driver_extensions = extensions;
835
836 dri2_bind_extensions(dri2_dpy, optional_driver_extensions, extensions, true);
837
838 return EGL_TRUE;
839 }
840
841 EGLBoolean
dri2_load_driver(_EGLDisplay * disp)842 dri2_load_driver(_EGLDisplay *disp)
843 {
844 return dri2_load_driver_common(disp, dri2_driver_extensions);
845 }
846
847 EGLBoolean
dri2_load_driver_dri3(_EGLDisplay * disp)848 dri2_load_driver_dri3(_EGLDisplay *disp)
849 {
850 return dri2_load_driver_common(disp, dri3_driver_extensions);
851 }
852
853 EGLBoolean
dri2_load_driver_swrast(_EGLDisplay * disp)854 dri2_load_driver_swrast(_EGLDisplay *disp)
855 {
856 return dri2_load_driver_common(disp, swrast_driver_extensions);
857 }
858
859 static unsigned
dri2_renderer_query_integer(struct dri2_egl_display * dri2_dpy,int param)860 dri2_renderer_query_integer(struct dri2_egl_display *dri2_dpy, int param)
861 {
862 const __DRI2rendererQueryExtension *rendererQuery = dri2_dpy->rendererQuery;
863 unsigned int value = 0;
864
865 if (!rendererQuery ||
866 rendererQuery->queryInteger(dri2_dpy->dri_screen, param, &value) == -1)
867 return 0;
868
869 return value;
870 }
871
872 static const char *
dri2_query_driver_name(_EGLDisplay * disp)873 dri2_query_driver_name(_EGLDisplay *disp)
874 {
875 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
876 return dri2_dpy->driver_name;
877 }
878
879 static char *
dri2_query_driver_config(_EGLDisplay * disp)880 dri2_query_driver_config(_EGLDisplay *disp)
881 {
882 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
883 const __DRIconfigOptionsExtension *ext = dri2_dpy->configOptions;
884
885 if (ext->base.version >= 2)
886 return ext->getXml(dri2_dpy->driver_name);
887
888 return strdup(ext->xml);
889 }
890
891
892 void
dri2_setup_screen(_EGLDisplay * disp)893 dri2_setup_screen(_EGLDisplay *disp)
894 {
895 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
896 unsigned int api_mask;
897
898 /*
899 * EGL 1.5 specification defines the default value to 1. Moreover,
900 * eglSwapInterval() is required to clamp requested value to the supported
901 * range. Since the default value is implicitly assumed to be supported,
902 * use it as both minimum and maximum for the platforms that do not allow
903 * changing the interval. Platforms, which allow it (e.g. x11, wayland)
904 * override these values already.
905 */
906 dri2_dpy->min_swap_interval = 1;
907 dri2_dpy->max_swap_interval = 1;
908 dri2_dpy->default_swap_interval = 1;
909
910 if (dri2_dpy->image_driver) {
911 api_mask = dri2_dpy->image_driver->getAPIMask(dri2_dpy->dri_screen);
912 } else if (dri2_dpy->dri2) {
913 api_mask = dri2_dpy->dri2->getAPIMask(dri2_dpy->dri_screen);
914 } else {
915 assert(dri2_dpy->swrast);
916 api_mask = 1 << __DRI_API_OPENGL |
917 1 << __DRI_API_GLES |
918 1 << __DRI_API_GLES2 |
919 1 << __DRI_API_GLES3;
920 }
921
922 disp->ClientAPIs = 0;
923 if ((api_mask & (1 <<__DRI_API_OPENGL)) && _eglIsApiValid(EGL_OPENGL_API))
924 disp->ClientAPIs |= EGL_OPENGL_BIT;
925 if ((api_mask & (1 << __DRI_API_GLES)) && _eglIsApiValid(EGL_OPENGL_ES_API))
926 disp->ClientAPIs |= EGL_OPENGL_ES_BIT;
927 if ((api_mask & (1 << __DRI_API_GLES2)) && _eglIsApiValid(EGL_OPENGL_ES_API))
928 disp->ClientAPIs |= EGL_OPENGL_ES2_BIT;
929 if ((api_mask & (1 << __DRI_API_GLES3)) && _eglIsApiValid(EGL_OPENGL_ES_API))
930 disp->ClientAPIs |= EGL_OPENGL_ES3_BIT_KHR;
931
932 assert(dri2_dpy->image_driver || dri2_dpy->dri2 || dri2_dpy->swrast);
933 disp->Extensions.KHR_no_config_context = EGL_TRUE;
934 disp->Extensions.KHR_surfaceless_context = EGL_TRUE;
935
936 if (dri2_dpy->configOptions) {
937 disp->Extensions.MESA_query_driver = EGL_TRUE;
938 }
939
940 /* Report back to EGL the bitmask of priorities supported */
941 disp->Extensions.IMG_context_priority =
942 dri2_renderer_query_integer(dri2_dpy,
943 __DRI2_RENDERER_HAS_CONTEXT_PRIORITY);
944
945 disp->Extensions.EXT_pixel_format_float = EGL_TRUE;
946
947 if (dri2_renderer_query_integer(dri2_dpy,
948 __DRI2_RENDERER_HAS_FRAMEBUFFER_SRGB))
949 disp->Extensions.KHR_gl_colorspace = EGL_TRUE;
950
951 if (dri2_dpy->image_driver ||
952 (dri2_dpy->dri2 && dri2_dpy->dri2->base.version >= 3) ||
953 (dri2_dpy->swrast && dri2_dpy->swrast->base.version >= 3)) {
954 disp->Extensions.KHR_create_context = EGL_TRUE;
955
956 if (dri2_dpy->robustness)
957 disp->Extensions.EXT_create_context_robustness = EGL_TRUE;
958 }
959
960 if (dri2_dpy->no_error)
961 disp->Extensions.KHR_create_context_no_error = EGL_TRUE;
962
963 if (dri2_dpy->fence) {
964 disp->Extensions.KHR_fence_sync = EGL_TRUE;
965 disp->Extensions.KHR_wait_sync = EGL_TRUE;
966 if (dri2_dpy->fence->get_fence_from_cl_event)
967 disp->Extensions.KHR_cl_event2 = EGL_TRUE;
968 if (dri2_dpy->fence->base.version >= 2 &&
969 dri2_dpy->fence->get_capabilities) {
970 unsigned capabilities =
971 dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen);
972 disp->Extensions.ANDROID_native_fence_sync =
973 (capabilities & __DRI_FENCE_CAP_NATIVE_FD) != 0;
974 }
975 }
976
977 if (dri2_dpy->blob)
978 disp->Extensions.ANDROID_blob_cache = EGL_TRUE;
979
980 disp->Extensions.KHR_reusable_sync = EGL_TRUE;
981
982 if (dri2_dpy->image) {
983 if (dri2_dpy->image->base.version >= 10 &&
984 dri2_dpy->image->getCapabilities != NULL) {
985 int capabilities;
986
987 capabilities = dri2_dpy->image->getCapabilities(dri2_dpy->dri_screen);
988 disp->Extensions.MESA_drm_image = (capabilities & __DRI_IMAGE_CAP_GLOBAL_NAMES) != 0;
989
990 if (dri2_dpy->image->base.version >= 11)
991 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
992 } else {
993 disp->Extensions.MESA_drm_image = EGL_TRUE;
994 if (dri2_dpy->image->base.version >= 11)
995 disp->Extensions.MESA_image_dma_buf_export = EGL_TRUE;
996 }
997
998 disp->Extensions.KHR_image_base = EGL_TRUE;
999 disp->Extensions.KHR_gl_renderbuffer_image = EGL_TRUE;
1000 if (dri2_dpy->image->base.version >= 5 &&
1001 dri2_dpy->image->createImageFromTexture) {
1002 disp->Extensions.KHR_gl_texture_2D_image = EGL_TRUE;
1003 disp->Extensions.KHR_gl_texture_cubemap_image = EGL_TRUE;
1004
1005 if (dri2_renderer_query_integer(dri2_dpy,
1006 __DRI2_RENDERER_HAS_TEXTURE_3D))
1007 disp->Extensions.KHR_gl_texture_3D_image = EGL_TRUE;
1008 }
1009 #ifdef HAVE_LIBDRM
1010 if (dri2_dpy->image->base.version >= 8 &&
1011 dri2_dpy->image->createImageFromDmaBufs) {
1012 disp->Extensions.EXT_image_dma_buf_import = EGL_TRUE;
1013 disp->Extensions.EXT_image_dma_buf_import_modifiers = EGL_TRUE;
1014 }
1015 #endif
1016 }
1017
1018 if (dri2_dpy->flush_control)
1019 disp->Extensions.KHR_context_flush_control = EGL_TRUE;
1020
1021 if (dri2_dpy->buffer_damage && dri2_dpy->buffer_damage->set_damage_region)
1022 disp->Extensions.KHR_partial_update = EGL_TRUE;
1023
1024 disp->Extensions.EXT_protected_surface =
1025 dri2_renderer_query_integer(dri2_dpy,
1026 __DRI2_RENDERER_HAS_PROTECTED_CONTENT);
1027 }
1028
1029 void
dri2_setup_swap_interval(_EGLDisplay * disp,int max_swap_interval)1030 dri2_setup_swap_interval(_EGLDisplay *disp, int max_swap_interval)
1031 {
1032 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1033 GLint vblank_mode = DRI_CONF_VBLANK_DEF_INTERVAL_1;
1034
1035 /* Allow driconf to override applications.*/
1036 if (dri2_dpy->config)
1037 dri2_dpy->config->configQueryi(dri2_dpy->dri_screen,
1038 "vblank_mode", &vblank_mode);
1039 switch (vblank_mode) {
1040 case DRI_CONF_VBLANK_NEVER:
1041 dri2_dpy->min_swap_interval = 0;
1042 dri2_dpy->max_swap_interval = 0;
1043 dri2_dpy->default_swap_interval = 0;
1044 break;
1045 case DRI_CONF_VBLANK_ALWAYS_SYNC:
1046 dri2_dpy->min_swap_interval = 1;
1047 dri2_dpy->max_swap_interval = max_swap_interval;
1048 dri2_dpy->default_swap_interval = 1;
1049 break;
1050 case DRI_CONF_VBLANK_DEF_INTERVAL_0:
1051 dri2_dpy->min_swap_interval = 0;
1052 dri2_dpy->max_swap_interval = max_swap_interval;
1053 dri2_dpy->default_swap_interval = 0;
1054 break;
1055 default:
1056 case DRI_CONF_VBLANK_DEF_INTERVAL_1:
1057 dri2_dpy->min_swap_interval = 0;
1058 dri2_dpy->max_swap_interval = max_swap_interval;
1059 dri2_dpy->default_swap_interval = 1;
1060 break;
1061 }
1062 }
1063
1064 /* All platforms but DRM call this function to create the screen and populate
1065 * the driver_configs. DRM inherits that information from its display - GBM.
1066 */
1067 EGLBoolean
dri2_create_screen(_EGLDisplay * disp)1068 dri2_create_screen(_EGLDisplay *disp)
1069 {
1070 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1071
1072 if (dri2_dpy->image_driver) {
1073 dri2_dpy->dri_screen =
1074 dri2_dpy->image_driver->createNewScreen2(0, dri2_dpy->fd,
1075 dri2_dpy->loader_extensions,
1076 dri2_dpy->driver_extensions,
1077 &dri2_dpy->driver_configs,
1078 disp);
1079 } else if (dri2_dpy->dri2) {
1080 if (dri2_dpy->dri2->base.version >= 4) {
1081 dri2_dpy->dri_screen =
1082 dri2_dpy->dri2->createNewScreen2(0, dri2_dpy->fd,
1083 dri2_dpy->loader_extensions,
1084 dri2_dpy->driver_extensions,
1085 &dri2_dpy->driver_configs, disp);
1086 } else {
1087 dri2_dpy->dri_screen =
1088 dri2_dpy->dri2->createNewScreen(0, dri2_dpy->fd,
1089 dri2_dpy->loader_extensions,
1090 &dri2_dpy->driver_configs, disp);
1091 }
1092 } else {
1093 assert(dri2_dpy->swrast);
1094 if (dri2_dpy->swrast->base.version >= 4) {
1095 dri2_dpy->dri_screen =
1096 dri2_dpy->swrast->createNewScreen2(0, dri2_dpy->loader_extensions,
1097 dri2_dpy->driver_extensions,
1098 &dri2_dpy->driver_configs, disp);
1099 } else {
1100 dri2_dpy->dri_screen =
1101 dri2_dpy->swrast->createNewScreen(0, dri2_dpy->loader_extensions,
1102 &dri2_dpy->driver_configs, disp);
1103 }
1104 }
1105
1106 if (dri2_dpy->dri_screen == NULL) {
1107 _eglLog(_EGL_WARNING, "DRI2: failed to create dri screen");
1108 return EGL_FALSE;
1109 }
1110
1111 dri2_dpy->own_dri_screen = true;
1112 return EGL_TRUE;
1113 }
1114
1115 EGLBoolean
dri2_setup_extensions(_EGLDisplay * disp)1116 dri2_setup_extensions(_EGLDisplay *disp)
1117 {
1118 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1119 const struct dri2_extension_match *mandatory_core_extensions;
1120 const __DRIextension **extensions;
1121
1122 extensions = dri2_dpy->core->getExtensions(dri2_dpy->dri_screen);
1123
1124 if (dri2_dpy->image_driver || dri2_dpy->dri2)
1125 mandatory_core_extensions = dri2_core_extensions;
1126 else
1127 mandatory_core_extensions = swrast_core_extensions;
1128
1129 if (!dri2_bind_extensions(dri2_dpy, mandatory_core_extensions, extensions, false))
1130 return EGL_FALSE;
1131
1132 #ifdef HAVE_DRI3_MODIFIERS
1133 dri2_dpy->multibuffers_available =
1134 (dri2_dpy->dri3_major_version > 1 || (dri2_dpy->dri3_major_version == 1 &&
1135 dri2_dpy->dri3_minor_version >= 2)) &&
1136 (dri2_dpy->present_major_version > 1 || (dri2_dpy->present_major_version == 1 &&
1137 dri2_dpy->present_minor_version >= 2)) &&
1138 (dri2_dpy->image && dri2_dpy->image->base.version >= 15);
1139 #endif
1140
1141 dri2_bind_extensions(dri2_dpy, optional_core_extensions, extensions, true);
1142 return EGL_TRUE;
1143 }
1144
1145 /**
1146 * Called via eglInitialize(), drv->Initialize().
1147 *
1148 * This must be guaranteed to be called exactly once, even if eglInitialize is
1149 * called many times (without a eglTerminate in between).
1150 */
1151 static EGLBoolean
dri2_initialize(_EGLDisplay * disp)1152 dri2_initialize(_EGLDisplay *disp)
1153 {
1154 EGLBoolean ret = EGL_FALSE;
1155 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1156
1157 /* In the case where the application calls eglMakeCurrent(context1),
1158 * eglTerminate, then eglInitialize again (without a call to eglReleaseThread
1159 * or eglMakeCurrent(NULL) before that), dri2_dpy structure is still
1160 * initialized, as we need it to be able to free context1 correctly.
1161 *
1162 * It would probably be safest to forcibly release the display with
1163 * dri2_display_release, to make sure the display is reinitialized correctly.
1164 * However, the EGL spec states that we need to keep a reference to the
1165 * current context (so we cannot call dri2_make_current(NULL)), and therefore
1166 * we would leak context1 as we would be missing the old display connection
1167 * to free it up correctly.
1168 */
1169 if (dri2_dpy) {
1170 dri2_dpy->ref_count++;
1171 return EGL_TRUE;
1172 }
1173
1174 loader_set_logger(_eglLog);
1175
1176 switch (disp->Platform) {
1177 case _EGL_PLATFORM_SURFACELESS:
1178 ret = dri2_initialize_surfaceless(disp);
1179 break;
1180 case _EGL_PLATFORM_DEVICE:
1181 ret = dri2_initialize_device(disp);
1182 break;
1183 case _EGL_PLATFORM_X11:
1184 ret = dri2_initialize_x11(disp);
1185 break;
1186 case _EGL_PLATFORM_DRM:
1187 ret = dri2_initialize_drm(disp);
1188 break;
1189 case _EGL_PLATFORM_WAYLAND:
1190 ret = dri2_initialize_wayland(disp);
1191 break;
1192 case _EGL_PLATFORM_ANDROID:
1193 ret = dri2_initialize_android(disp);
1194 break;
1195 default:
1196 unreachable("Callers ensure we cannot get here.");
1197 return EGL_FALSE;
1198 }
1199
1200 if (!ret)
1201 return EGL_FALSE;
1202
1203 dri2_dpy = dri2_egl_display(disp);
1204 dri2_dpy->ref_count++;
1205
1206 return EGL_TRUE;
1207 }
1208
1209 /**
1210 * Decrement display reference count, and free up display if necessary.
1211 */
1212 static void
dri2_display_release(_EGLDisplay * disp)1213 dri2_display_release(_EGLDisplay *disp)
1214 {
1215 struct dri2_egl_display *dri2_dpy;
1216
1217 if (!disp)
1218 return;
1219
1220 dri2_dpy = dri2_egl_display(disp);
1221
1222 assert(dri2_dpy->ref_count > 0);
1223 dri2_dpy->ref_count--;
1224
1225 if (dri2_dpy->ref_count > 0)
1226 return;
1227
1228 _eglCleanupDisplay(disp);
1229 dri2_display_destroy(disp);
1230 }
1231
1232 void
dri2_display_destroy(_EGLDisplay * disp)1233 dri2_display_destroy(_EGLDisplay *disp)
1234 {
1235 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1236
1237 if (dri2_dpy->own_dri_screen) {
1238 if (dri2_dpy->vtbl && dri2_dpy->vtbl->close_screen_notify)
1239 dri2_dpy->vtbl->close_screen_notify(disp);
1240 dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
1241 }
1242 if (dri2_dpy->fd >= 0)
1243 close(dri2_dpy->fd);
1244 if (dri2_dpy->driver)
1245 dlclose(dri2_dpy->driver);
1246 free(dri2_dpy->driver_name);
1247
1248 #ifdef HAVE_WAYLAND_PLATFORM
1249 free(dri2_dpy->device_name);
1250 #endif
1251
1252 switch (disp->Platform) {
1253 case _EGL_PLATFORM_X11:
1254 dri2_teardown_x11(dri2_dpy);
1255 break;
1256 case _EGL_PLATFORM_DRM:
1257 dri2_teardown_drm(dri2_dpy);
1258 break;
1259 case _EGL_PLATFORM_WAYLAND:
1260 dri2_teardown_wayland(dri2_dpy);
1261 break;
1262 default:
1263 /* TODO: add teardown for other platforms */
1264 break;
1265 }
1266
1267 /* The drm platform does not create the screen/driver_configs but reuses
1268 * the ones from the gbm device. As such the gbm itself is responsible
1269 * for the cleanup.
1270 */
1271 if (disp->Platform != _EGL_PLATFORM_DRM && dri2_dpy->driver_configs) {
1272 for (unsigned i = 0; dri2_dpy->driver_configs[i]; i++)
1273 free((__DRIconfig *) dri2_dpy->driver_configs[i]);
1274 free(dri2_dpy->driver_configs);
1275 }
1276 free(dri2_dpy);
1277 disp->DriverData = NULL;
1278 }
1279
1280 __DRIbuffer *
dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface * dri2_surf,unsigned int att,unsigned int format)1281 dri2_egl_surface_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
1282 unsigned int att, unsigned int format)
1283 {
1284 struct dri2_egl_display *dri2_dpy =
1285 dri2_egl_display(dri2_surf->base.Resource.Display);
1286
1287 if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
1288 return NULL;
1289
1290 if (!dri2_surf->local_buffers[att]) {
1291 dri2_surf->local_buffers[att] =
1292 dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
1293 dri2_surf->base.Width, dri2_surf->base.Height);
1294 }
1295
1296 return dri2_surf->local_buffers[att];
1297 }
1298
1299 void
dri2_egl_surface_free_local_buffers(struct dri2_egl_surface * dri2_surf)1300 dri2_egl_surface_free_local_buffers(struct dri2_egl_surface *dri2_surf)
1301 {
1302 struct dri2_egl_display *dri2_dpy =
1303 dri2_egl_display(dri2_surf->base.Resource.Display);
1304
1305 for (int i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
1306 if (dri2_surf->local_buffers[i]) {
1307 dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
1308 dri2_surf->local_buffers[i]);
1309 dri2_surf->local_buffers[i] = NULL;
1310 }
1311 }
1312 }
1313
1314 /**
1315 * Called via eglTerminate(), drv->Terminate().
1316 *
1317 * This must be guaranteed to be called exactly once, even if eglTerminate is
1318 * called many times (without a eglInitialize in between).
1319 */
1320 static EGLBoolean
dri2_terminate(_EGLDisplay * disp)1321 dri2_terminate(_EGLDisplay *disp)
1322 {
1323 /* Release all non-current Context/Surfaces. */
1324 _eglReleaseDisplayResources(disp);
1325
1326 dri2_display_release(disp);
1327
1328 return EGL_TRUE;
1329 }
1330
1331 /**
1332 * Set the error code after a call to
1333 * dri2_egl_display::dri2::createContextAttribs.
1334 */
1335 static void
dri2_create_context_attribs_error(int dri_error)1336 dri2_create_context_attribs_error(int dri_error)
1337 {
1338 EGLint egl_error;
1339
1340 switch (dri_error) {
1341 case __DRI_CTX_ERROR_SUCCESS:
1342 return;
1343
1344 case __DRI_CTX_ERROR_NO_MEMORY:
1345 egl_error = EGL_BAD_ALLOC;
1346 break;
1347
1348 /* From the EGL_KHR_create_context spec, section "Errors":
1349 *
1350 * * If <config> does not support a client API context compatible
1351 * with the requested API major and minor version, [...] context flags,
1352 * and context reset notification behavior (for client API types where
1353 * these attributes are supported), then an EGL_BAD_MATCH error is
1354 * generated.
1355 *
1356 * * If an OpenGL ES context is requested and the values for
1357 * attributes EGL_CONTEXT_MAJOR_VERSION_KHR and
1358 * EGL_CONTEXT_MINOR_VERSION_KHR specify an OpenGL ES version that
1359 * is not defined, than an EGL_BAD_MATCH error is generated.
1360 *
1361 * * If an OpenGL context is requested, the requested version is
1362 * greater than 3.2, and the value for attribute
1363 * EGL_CONTEXT_OPENGL_PROFILE_MASK_KHR has no bits set; has any
1364 * bits set other than EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR and
1365 * EGL_CONTEXT_OPENGL_COMPATIBILITY_PROFILE_BIT_KHR; has more than
1366 * one of these bits set; or if the implementation does not support
1367 * the requested profile, then an EGL_BAD_MATCH error is generated.
1368 */
1369 case __DRI_CTX_ERROR_BAD_API:
1370 case __DRI_CTX_ERROR_BAD_VERSION:
1371 case __DRI_CTX_ERROR_BAD_FLAG:
1372 egl_error = EGL_BAD_MATCH;
1373 break;
1374
1375 /* From the EGL_KHR_create_context spec, section "Errors":
1376 *
1377 * * If an attribute name or attribute value in <attrib_list> is not
1378 * recognized (including unrecognized bits in bitmask attributes),
1379 * then an EGL_BAD_ATTRIBUTE error is generated."
1380 */
1381 case __DRI_CTX_ERROR_UNKNOWN_ATTRIBUTE:
1382 case __DRI_CTX_ERROR_UNKNOWN_FLAG:
1383 egl_error = EGL_BAD_ATTRIBUTE;
1384 break;
1385
1386 default:
1387 assert(!"unknown dri_error code");
1388 egl_error = EGL_BAD_MATCH;
1389 break;
1390 }
1391
1392 _eglError(egl_error, "dri2_create_context");
1393 }
1394
1395 static bool
dri2_fill_context_attribs(struct dri2_egl_context * dri2_ctx,struct dri2_egl_display * dri2_dpy,uint32_t * ctx_attribs,unsigned * num_attribs)1396 dri2_fill_context_attribs(struct dri2_egl_context *dri2_ctx,
1397 struct dri2_egl_display *dri2_dpy,
1398 uint32_t *ctx_attribs,
1399 unsigned *num_attribs)
1400 {
1401 int pos = 0;
1402
1403 assert(*num_attribs >= NUM_ATTRIBS);
1404
1405 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MAJOR_VERSION;
1406 ctx_attribs[pos++] = dri2_ctx->base.ClientMajorVersion;
1407 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_MINOR_VERSION;
1408 ctx_attribs[pos++] = dri2_ctx->base.ClientMinorVersion;
1409
1410 if (dri2_ctx->base.Flags != 0 || dri2_ctx->base.NoError) {
1411 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1412 * extension, don't even try to send it the robust-access flag.
1413 * It may explode. Instead, generate the required EGL error here.
1414 */
1415 if ((dri2_ctx->base.Flags & EGL_CONTEXT_OPENGL_ROBUST_ACCESS_BIT_KHR) != 0
1416 && !dri2_dpy->robustness) {
1417 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1418 return false;
1419 }
1420
1421 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_FLAGS;
1422 ctx_attribs[pos++] = dri2_ctx->base.Flags |
1423 (dri2_ctx->base.NoError ? __DRI_CTX_FLAG_NO_ERROR : 0);
1424 }
1425
1426 if (dri2_ctx->base.ResetNotificationStrategy != EGL_NO_RESET_NOTIFICATION_KHR) {
1427 /* If the implementation doesn't support the __DRI2_ROBUSTNESS
1428 * extension, don't even try to send it a reset strategy. It may
1429 * explode. Instead, generate the required EGL error here.
1430 */
1431 if (!dri2_dpy->robustness) {
1432 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1433 return false;
1434 }
1435
1436 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RESET_STRATEGY;
1437 ctx_attribs[pos++] = __DRI_CTX_RESET_LOSE_CONTEXT;
1438 }
1439
1440 if (dri2_ctx->base.ContextPriority != EGL_CONTEXT_PRIORITY_MEDIUM_IMG) {
1441 unsigned val;
1442
1443 switch (dri2_ctx->base.ContextPriority) {
1444 case EGL_CONTEXT_PRIORITY_HIGH_IMG:
1445 val = __DRI_CTX_PRIORITY_HIGH;
1446 break;
1447 case EGL_CONTEXT_PRIORITY_MEDIUM_IMG:
1448 val = __DRI_CTX_PRIORITY_MEDIUM;
1449 break;
1450 case EGL_CONTEXT_PRIORITY_LOW_IMG:
1451 val = __DRI_CTX_PRIORITY_LOW;
1452 break;
1453 default:
1454 _eglError(EGL_BAD_CONFIG, "eglCreateContext");
1455 return false;
1456 }
1457
1458 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_PRIORITY;
1459 ctx_attribs[pos++] = val;
1460 }
1461
1462 if (dri2_ctx->base.ReleaseBehavior == EGL_CONTEXT_RELEASE_BEHAVIOR_NONE_KHR) {
1463 ctx_attribs[pos++] = __DRI_CTX_ATTRIB_RELEASE_BEHAVIOR;
1464 ctx_attribs[pos++] = __DRI_CTX_RELEASE_BEHAVIOR_NONE;
1465 }
1466
1467 *num_attribs = pos;
1468
1469 return true;
1470 }
1471
1472 /**
1473 * Called via eglCreateContext(), drv->CreateContext().
1474 */
1475 static _EGLContext *
dri2_create_context(_EGLDisplay * disp,_EGLConfig * conf,_EGLContext * share_list,const EGLint * attrib_list)1476 dri2_create_context(_EGLDisplay *disp, _EGLConfig *conf,
1477 _EGLContext *share_list, const EGLint *attrib_list)
1478 {
1479 struct dri2_egl_context *dri2_ctx;
1480 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1481 struct dri2_egl_context *dri2_ctx_shared = dri2_egl_context(share_list);
1482 __DRIcontext *shared =
1483 dri2_ctx_shared ? dri2_ctx_shared->dri_context : NULL;
1484 struct dri2_egl_config *dri2_config = dri2_egl_config(conf);
1485 const __DRIconfig *dri_config;
1486 int api;
1487 unsigned error;
1488 unsigned num_attribs = NUM_ATTRIBS;
1489 uint32_t ctx_attribs[NUM_ATTRIBS];
1490
1491 dri2_ctx = malloc(sizeof *dri2_ctx);
1492 if (!dri2_ctx) {
1493 _eglError(EGL_BAD_ALLOC, "eglCreateContext");
1494 return NULL;
1495 }
1496
1497 if (!_eglInitContext(&dri2_ctx->base, disp, conf, attrib_list))
1498 goto cleanup;
1499
1500 /* The EGL_EXT_create_context_robustness spec says:
1501 *
1502 * "Add to the eglCreateContext context creation errors: [...]
1503 *
1504 * * If the reset notification behavior of <share_context> and the
1505 * newly created context are different then an EGL_BAD_MATCH error is
1506 * generated."
1507 */
1508 if (share_list && share_list->ResetNotificationStrategy !=
1509 dri2_ctx->base.ResetNotificationStrategy) {
1510 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1511 goto cleanup;
1512 }
1513
1514 /* The EGL_KHR_create_context_no_error spec says:
1515 *
1516 * "BAD_MATCH is generated if the value of EGL_CONTEXT_OPENGL_NO_ERROR_KHR
1517 * used to create <share_context> does not match the value of
1518 * EGL_CONTEXT_OPENGL_NO_ERROR_KHR for the context being created."
1519 */
1520 if (share_list && share_list->NoError != dri2_ctx->base.NoError) {
1521 _eglError(EGL_BAD_MATCH, "eglCreateContext");
1522 goto cleanup;
1523 }
1524
1525 switch (dri2_ctx->base.ClientAPI) {
1526 case EGL_OPENGL_ES_API:
1527 switch (dri2_ctx->base.ClientMajorVersion) {
1528 case 1:
1529 api = __DRI_API_GLES;
1530 break;
1531 case 2:
1532 api = __DRI_API_GLES2;
1533 break;
1534 case 3:
1535 api = __DRI_API_GLES3;
1536 break;
1537 default:
1538 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1539 free(dri2_ctx);
1540 return NULL;
1541 }
1542 break;
1543 case EGL_OPENGL_API:
1544 if ((dri2_ctx->base.ClientMajorVersion >= 4
1545 || (dri2_ctx->base.ClientMajorVersion == 3
1546 && dri2_ctx->base.ClientMinorVersion >= 2))
1547 && dri2_ctx->base.Profile == EGL_CONTEXT_OPENGL_CORE_PROFILE_BIT_KHR)
1548 api = __DRI_API_OPENGL_CORE;
1549 else if (dri2_ctx->base.ClientMajorVersion == 3 &&
1550 dri2_ctx->base.ClientMinorVersion == 1)
1551 api = __DRI_API_OPENGL_CORE;
1552 else
1553 api = __DRI_API_OPENGL;
1554 break;
1555 default:
1556 _eglError(EGL_BAD_PARAMETER, "eglCreateContext");
1557 free(dri2_ctx);
1558 return NULL;
1559 }
1560
1561 if (conf != NULL) {
1562 /* The config chosen here isn't necessarily
1563 * used for surfaces later.
1564 * A pixmap surface will use the single config.
1565 * This opportunity depends on disabling the
1566 * doubleBufferMode check in
1567 * src/mesa/main/context.c:check_compatible()
1568 */
1569 if (dri2_config->dri_config[1][0])
1570 dri_config = dri2_config->dri_config[1][0];
1571 else
1572 dri_config = dri2_config->dri_config[0][0];
1573 }
1574 else
1575 dri_config = NULL;
1576
1577 if (!dri2_fill_context_attribs(dri2_ctx, dri2_dpy, ctx_attribs,
1578 &num_attribs))
1579 goto cleanup;
1580
1581 if (dri2_dpy->image_driver) {
1582 dri2_ctx->dri_context =
1583 dri2_dpy->image_driver->createContextAttribs(dri2_dpy->dri_screen,
1584 api,
1585 dri_config,
1586 shared,
1587 num_attribs / 2,
1588 ctx_attribs,
1589 & error,
1590 dri2_ctx);
1591 dri2_create_context_attribs_error(error);
1592 } else if (dri2_dpy->dri2) {
1593 if (dri2_dpy->dri2->base.version >= 3) {
1594 dri2_ctx->dri_context =
1595 dri2_dpy->dri2->createContextAttribs(dri2_dpy->dri_screen,
1596 api,
1597 dri_config,
1598 shared,
1599 num_attribs / 2,
1600 ctx_attribs,
1601 & error,
1602 dri2_ctx);
1603 dri2_create_context_attribs_error(error);
1604 } else {
1605 dri2_ctx->dri_context =
1606 dri2_dpy->dri2->createNewContextForAPI(dri2_dpy->dri_screen,
1607 api,
1608 dri_config,
1609 shared,
1610 dri2_ctx);
1611 }
1612 } else {
1613 assert(dri2_dpy->swrast);
1614 if (dri2_dpy->swrast->base.version >= 3) {
1615 dri2_ctx->dri_context =
1616 dri2_dpy->swrast->createContextAttribs(dri2_dpy->dri_screen,
1617 api,
1618 dri_config,
1619 shared,
1620 num_attribs / 2,
1621 ctx_attribs,
1622 & error,
1623 dri2_ctx);
1624 dri2_create_context_attribs_error(error);
1625 } else {
1626 dri2_ctx->dri_context =
1627 dri2_dpy->swrast->createNewContextForAPI(dri2_dpy->dri_screen,
1628 api,
1629 dri_config,
1630 shared,
1631 dri2_ctx);
1632 }
1633 }
1634
1635 if (!dri2_ctx->dri_context)
1636 goto cleanup;
1637
1638 return &dri2_ctx->base;
1639
1640 cleanup:
1641 free(dri2_ctx);
1642 return NULL;
1643 }
1644
1645 /**
1646 * Called via eglDestroyContext(), drv->DestroyContext().
1647 */
1648 static EGLBoolean
dri2_destroy_context(_EGLDisplay * disp,_EGLContext * ctx)1649 dri2_destroy_context(_EGLDisplay *disp, _EGLContext *ctx)
1650 {
1651 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1652 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1653
1654 if (_eglPutContext(ctx)) {
1655 dri2_dpy->core->destroyContext(dri2_ctx->dri_context);
1656 free(dri2_ctx);
1657 }
1658
1659 return EGL_TRUE;
1660 }
1661
1662 EGLBoolean
dri2_init_surface(_EGLSurface * surf,_EGLDisplay * disp,EGLint type,_EGLConfig * conf,const EGLint * attrib_list,EGLBoolean enable_out_fence,void * native_surface)1663 dri2_init_surface(_EGLSurface *surf, _EGLDisplay *disp, EGLint type,
1664 _EGLConfig *conf, const EGLint *attrib_list,
1665 EGLBoolean enable_out_fence, void *native_surface)
1666 {
1667 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1668 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1669
1670 dri2_surf->out_fence_fd = -1;
1671 dri2_surf->enable_out_fence = false;
1672 if (dri2_dpy->fence && dri2_dpy->fence->base.version >= 2 &&
1673 dri2_dpy->fence->get_capabilities &&
1674 (dri2_dpy->fence->get_capabilities(dri2_dpy->dri_screen) &
1675 __DRI_FENCE_CAP_NATIVE_FD)) {
1676 dri2_surf->enable_out_fence = enable_out_fence;
1677 }
1678
1679 return _eglInitSurface(surf, disp, type, conf, attrib_list, native_surface);
1680 }
1681
1682 static void
dri2_surface_set_out_fence_fd(_EGLSurface * surf,int fence_fd)1683 dri2_surface_set_out_fence_fd( _EGLSurface *surf, int fence_fd)
1684 {
1685 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1686
1687 if (dri2_surf->out_fence_fd >= 0)
1688 close(dri2_surf->out_fence_fd);
1689
1690 dri2_surf->out_fence_fd = fence_fd;
1691 }
1692
1693 void
dri2_fini_surface(_EGLSurface * surf)1694 dri2_fini_surface(_EGLSurface *surf)
1695 {
1696 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1697
1698 dri2_surface_set_out_fence_fd(surf, -1);
1699 dri2_surf->enable_out_fence = false;
1700 }
1701
1702 static EGLBoolean
dri2_destroy_surface(_EGLDisplay * disp,_EGLSurface * surf)1703 dri2_destroy_surface(_EGLDisplay *disp, _EGLSurface *surf)
1704 {
1705 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1706
1707 if (!_eglPutSurface(surf))
1708 return EGL_TRUE;
1709
1710 return dri2_dpy->vtbl->destroy_surface(disp, surf);
1711 }
1712
1713 static void
dri2_surf_update_fence_fd(_EGLContext * ctx,_EGLDisplay * disp,_EGLSurface * surf)1714 dri2_surf_update_fence_fd(_EGLContext *ctx,
1715 _EGLDisplay *disp, _EGLSurface *surf)
1716 {
1717 __DRIcontext *dri_ctx = dri2_egl_context(ctx)->dri_context;
1718 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1719 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1720 int fence_fd = -1;
1721 void *fence;
1722
1723 if (!dri2_surf->enable_out_fence)
1724 return;
1725
1726 fence = dri2_dpy->fence->create_fence_fd(dri_ctx, -1);
1727 if (fence) {
1728 fence_fd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
1729 fence);
1730 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, fence);
1731 }
1732 dri2_surface_set_out_fence_fd(surf, fence_fd);
1733 }
1734
1735 EGLBoolean
dri2_create_drawable(struct dri2_egl_display * dri2_dpy,const __DRIconfig * config,struct dri2_egl_surface * dri2_surf,void * loaderPrivate)1736 dri2_create_drawable(struct dri2_egl_display *dri2_dpy,
1737 const __DRIconfig *config,
1738 struct dri2_egl_surface *dri2_surf,
1739 void *loaderPrivate)
1740 {
1741 __DRIcreateNewDrawableFunc createNewDrawable;
1742
1743 if (dri2_dpy->image_driver)
1744 createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
1745 else if (dri2_dpy->dri2)
1746 createNewDrawable = dri2_dpy->dri2->createNewDrawable;
1747 else if (dri2_dpy->swrast)
1748 createNewDrawable = dri2_dpy->swrast->createNewDrawable;
1749 else
1750 return _eglError(EGL_BAD_ALLOC, "no createNewDrawable");
1751
1752 dri2_surf->dri_drawable = createNewDrawable(dri2_dpy->dri_screen,
1753 config, loaderPrivate);
1754 if (dri2_surf->dri_drawable == NULL)
1755 return _eglError(EGL_BAD_ALLOC, "createNewDrawable");
1756
1757 return EGL_TRUE;
1758 }
1759
1760 /**
1761 * Called via eglMakeCurrent(), drv->MakeCurrent().
1762 */
1763 static EGLBoolean
dri2_make_current(_EGLDisplay * disp,_EGLSurface * dsurf,_EGLSurface * rsurf,_EGLContext * ctx)1764 dri2_make_current(_EGLDisplay *disp, _EGLSurface *dsurf,
1765 _EGLSurface *rsurf, _EGLContext *ctx)
1766 {
1767 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1768 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1769 _EGLDisplay *old_disp = NULL;
1770 struct dri2_egl_display *old_dri2_dpy = NULL;
1771 _EGLContext *old_ctx;
1772 _EGLSurface *old_dsurf, *old_rsurf;
1773 _EGLSurface *tmp_dsurf, *tmp_rsurf;
1774 __DRIdrawable *ddraw, *rdraw;
1775 __DRIcontext *cctx;
1776 EGLint egl_error = EGL_SUCCESS;
1777
1778 if (!dri2_dpy)
1779 return _eglError(EGL_NOT_INITIALIZED, "eglMakeCurrent");
1780
1781 /* make new bindings, set the EGL error otherwise */
1782 if (!_eglBindContext(ctx, dsurf, rsurf, &old_ctx, &old_dsurf, &old_rsurf))
1783 return EGL_FALSE;
1784
1785 if (old_ctx) {
1786 __DRIcontext *old_cctx = dri2_egl_context(old_ctx)->dri_context;
1787 old_disp = old_ctx->Resource.Display;
1788 old_dri2_dpy = dri2_egl_display(old_disp);
1789
1790 /* flush before context switch */
1791 dri2_gl_flush();
1792
1793 if (old_dsurf)
1794 dri2_surf_update_fence_fd(old_ctx, disp, old_dsurf);
1795
1796 /* Disable shared buffer mode */
1797 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1798 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1799 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, false);
1800 }
1801
1802 dri2_dpy->core->unbindContext(old_cctx);
1803 }
1804
1805 ddraw = (dsurf) ? dri2_dpy->vtbl->get_dri_drawable(dsurf) : NULL;
1806 rdraw = (rsurf) ? dri2_dpy->vtbl->get_dri_drawable(rsurf) : NULL;
1807 cctx = (dri2_ctx) ? dri2_ctx->dri_context : NULL;
1808
1809 if (cctx || ddraw || rdraw) {
1810 if (!dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1811 _EGLContext *tmp_ctx;
1812
1813 /* dri2_dpy->core->bindContext failed. We cannot tell for sure why, but
1814 * setting the error to EGL_BAD_MATCH is surely better than leaving it
1815 * as EGL_SUCCESS.
1816 */
1817 egl_error = EGL_BAD_MATCH;
1818
1819 /* undo the previous _eglBindContext */
1820 _eglBindContext(old_ctx, old_dsurf, old_rsurf, &ctx, &tmp_dsurf, &tmp_rsurf);
1821 assert(&dri2_ctx->base == ctx &&
1822 tmp_dsurf == dsurf &&
1823 tmp_rsurf == rsurf);
1824
1825 _eglPutSurface(dsurf);
1826 _eglPutSurface(rsurf);
1827 _eglPutContext(ctx);
1828
1829 _eglPutSurface(old_dsurf);
1830 _eglPutSurface(old_rsurf);
1831 _eglPutContext(old_ctx);
1832
1833 ddraw = (old_dsurf) ? dri2_dpy->vtbl->get_dri_drawable(old_dsurf) : NULL;
1834 rdraw = (old_rsurf) ? dri2_dpy->vtbl->get_dri_drawable(old_rsurf) : NULL;
1835 cctx = (old_ctx) ? dri2_egl_context(old_ctx)->dri_context : NULL;
1836
1837 /* undo the previous dri2_dpy->core->unbindContext */
1838 if (dri2_dpy->core->bindContext(cctx, ddraw, rdraw)) {
1839 if (old_dsurf && _eglSurfaceInSharedBufferMode(old_dsurf) &&
1840 old_dri2_dpy->vtbl->set_shared_buffer_mode) {
1841 old_dri2_dpy->vtbl->set_shared_buffer_mode(old_disp, old_dsurf, true);
1842 }
1843
1844 return _eglError(egl_error, "eglMakeCurrent");
1845 }
1846
1847 /* We cannot restore the same state as it was before calling
1848 * eglMakeCurrent() and the spec isn't clear about what to do. We
1849 * can prevent EGL from calling into the DRI driver with no DRI
1850 * context bound.
1851 */
1852 dsurf = rsurf = NULL;
1853 ctx = NULL;
1854
1855 _eglBindContext(ctx, dsurf, rsurf, &tmp_ctx, &tmp_dsurf, &tmp_rsurf);
1856 assert(tmp_ctx == old_ctx && tmp_dsurf == old_dsurf &&
1857 tmp_rsurf == old_rsurf);
1858
1859 _eglLog(_EGL_WARNING, "DRI2: failed to rebind the previous context");
1860 } else {
1861 /* dri2_dpy->core->bindContext succeeded, so take a reference on the
1862 * dri2_dpy. This prevents dri2_dpy from being reinitialized when a
1863 * EGLDisplay is terminated and then initialized again while a
1864 * context is still bound. See dri2_intitialize() for a more in depth
1865 * explanation. */
1866 dri2_dpy->ref_count++;
1867 }
1868 }
1869
1870 dri2_destroy_surface(disp, old_dsurf);
1871 dri2_destroy_surface(disp, old_rsurf);
1872
1873 if (old_ctx) {
1874 dri2_destroy_context(disp, old_ctx);
1875 dri2_display_release(old_disp);
1876 }
1877
1878 if (egl_error != EGL_SUCCESS)
1879 return _eglError(egl_error, "eglMakeCurrent");
1880
1881 if (dsurf && _eglSurfaceHasMutableRenderBuffer(dsurf) &&
1882 dri2_dpy->vtbl->set_shared_buffer_mode) {
1883 /* Always update the shared buffer mode. This is obviously needed when
1884 * the active EGL_RENDER_BUFFER is EGL_SINGLE_BUFFER. When
1885 * EGL_RENDER_BUFFER is EGL_BACK_BUFFER, the update protects us in the
1886 * case where external non-EGL API may have changed window's shared
1887 * buffer mode since we last saw it.
1888 */
1889 bool mode = (dsurf->ActiveRenderBuffer == EGL_SINGLE_BUFFER);
1890 dri2_dpy->vtbl->set_shared_buffer_mode(disp, dsurf, mode);
1891 }
1892
1893 return EGL_TRUE;
1894 }
1895
1896 __DRIdrawable *
dri2_surface_get_dri_drawable(_EGLSurface * surf)1897 dri2_surface_get_dri_drawable(_EGLSurface *surf)
1898 {
1899 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1900
1901 return dri2_surf->dri_drawable;
1902 }
1903
1904 /*
1905 * Called from eglGetProcAddress() via drv->GetProcAddress().
1906 */
1907 static _EGLProc
dri2_get_proc_address(const char * procname)1908 dri2_get_proc_address(const char *procname)
1909 {
1910 return _glapi_get_proc_address(procname);
1911 }
1912
1913 static _EGLSurface*
dri2_create_window_surface(_EGLDisplay * disp,_EGLConfig * conf,void * native_window,const EGLint * attrib_list)1914 dri2_create_window_surface(_EGLDisplay *disp, _EGLConfig *conf,
1915 void *native_window, const EGLint *attrib_list)
1916 {
1917 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1918 return dri2_dpy->vtbl->create_window_surface(disp, conf, native_window,
1919 attrib_list);
1920 }
1921
1922 static _EGLSurface*
dri2_create_pixmap_surface(_EGLDisplay * disp,_EGLConfig * conf,void * native_pixmap,const EGLint * attrib_list)1923 dri2_create_pixmap_surface(_EGLDisplay *disp, _EGLConfig *conf,
1924 void *native_pixmap, const EGLint *attrib_list)
1925 {
1926 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1927 if (!dri2_dpy->vtbl->create_pixmap_surface)
1928 return NULL;
1929 return dri2_dpy->vtbl->create_pixmap_surface(disp, conf, native_pixmap,
1930 attrib_list);
1931 }
1932
1933 static _EGLSurface*
dri2_create_pbuffer_surface(_EGLDisplay * disp,_EGLConfig * conf,const EGLint * attrib_list)1934 dri2_create_pbuffer_surface(_EGLDisplay *disp, _EGLConfig *conf,
1935 const EGLint *attrib_list)
1936 {
1937 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1938 if (!dri2_dpy->vtbl->create_pbuffer_surface)
1939 return NULL;
1940 return dri2_dpy->vtbl->create_pbuffer_surface(disp, conf, attrib_list);
1941 }
1942
1943 static EGLBoolean
dri2_swap_interval(_EGLDisplay * disp,_EGLSurface * surf,EGLint interval)1944 dri2_swap_interval(_EGLDisplay *disp, _EGLSurface *surf, EGLint interval)
1945 {
1946 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1947 if (!dri2_dpy->vtbl->swap_interval)
1948 return EGL_TRUE;
1949 return dri2_dpy->vtbl->swap_interval(disp, surf, interval);
1950 }
1951
1952 /**
1953 * Asks the client API to flush any rendering to the drawable so that we can
1954 * do our swapbuffers.
1955 */
1956 void
dri2_flush_drawable_for_swapbuffers(_EGLDisplay * disp,_EGLSurface * draw)1957 dri2_flush_drawable_for_swapbuffers(_EGLDisplay *disp, _EGLSurface *draw)
1958 {
1959 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1960 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(draw);
1961
1962 if (dri2_dpy->flush) {
1963 if (dri2_dpy->flush->base.version >= 4) {
1964 /* We know there's a current context because:
1965 *
1966 * "If surface is not bound to the calling thread’s current
1967 * context, an EGL_BAD_SURFACE error is generated."
1968 */
1969 _EGLContext *ctx = _eglGetCurrentContext();
1970 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
1971
1972 /* From the EGL 1.4 spec (page 52):
1973 *
1974 * "The contents of ancillary buffers are always undefined
1975 * after calling eglSwapBuffers."
1976 */
1977 dri2_dpy->flush->flush_with_flags(dri2_ctx->dri_context,
1978 dri_drawable,
1979 __DRI2_FLUSH_DRAWABLE |
1980 __DRI2_FLUSH_INVALIDATE_ANCILLARY,
1981 __DRI2_THROTTLE_SWAPBUFFER);
1982 } else {
1983 dri2_dpy->flush->flush(dri_drawable);
1984 }
1985 }
1986 }
1987
1988 static EGLBoolean
dri2_swap_buffers(_EGLDisplay * disp,_EGLSurface * surf)1989 dri2_swap_buffers(_EGLDisplay *disp, _EGLSurface *surf)
1990 {
1991 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1992 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
1993 _EGLContext *ctx = _eglGetCurrentContext();
1994 EGLBoolean ret;
1995
1996 if (ctx && surf)
1997 dri2_surf_update_fence_fd(ctx, disp, surf);
1998 ret = dri2_dpy->vtbl->swap_buffers(disp, surf);
1999
2000 /* SwapBuffers marks the end of the frame; reset the damage region for
2001 * use again next time.
2002 */
2003 if (ret && dri2_dpy->buffer_damage &&
2004 dri2_dpy->buffer_damage->set_damage_region)
2005 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2006
2007 return ret;
2008 }
2009
2010 static EGLBoolean
dri2_swap_buffers_with_damage(_EGLDisplay * disp,_EGLSurface * surf,const EGLint * rects,EGLint n_rects)2011 dri2_swap_buffers_with_damage(_EGLDisplay *disp, _EGLSurface *surf,
2012 const EGLint *rects, EGLint n_rects)
2013 {
2014 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2015 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2016 _EGLContext *ctx = _eglGetCurrentContext();
2017 EGLBoolean ret;
2018
2019 if (ctx && surf)
2020 dri2_surf_update_fence_fd(ctx, disp, surf);
2021 if (dri2_dpy->vtbl->swap_buffers_with_damage)
2022 ret = dri2_dpy->vtbl->swap_buffers_with_damage(disp, surf,
2023 rects, n_rects);
2024 else
2025 ret = dri2_dpy->vtbl->swap_buffers(disp, surf);
2026
2027 /* SwapBuffers marks the end of the frame; reset the damage region for
2028 * use again next time.
2029 */
2030 if (ret && dri2_dpy->buffer_damage &&
2031 dri2_dpy->buffer_damage->set_damage_region)
2032 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2033
2034 return ret;
2035 }
2036
2037 static EGLBoolean
dri2_swap_buffers_region(_EGLDisplay * disp,_EGLSurface * surf,EGLint numRects,const EGLint * rects)2038 dri2_swap_buffers_region(_EGLDisplay *disp, _EGLSurface *surf,
2039 EGLint numRects, const EGLint *rects)
2040 {
2041 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2042 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2043 EGLBoolean ret;
2044
2045 if (!dri2_dpy->vtbl->swap_buffers_region)
2046 return EGL_FALSE;
2047 ret = dri2_dpy->vtbl->swap_buffers_region(disp, surf, numRects, rects);
2048
2049 /* SwapBuffers marks the end of the frame; reset the damage region for
2050 * use again next time.
2051 */
2052 if (ret && dri2_dpy->buffer_damage &&
2053 dri2_dpy->buffer_damage->set_damage_region)
2054 dri2_dpy->buffer_damage->set_damage_region(dri_drawable, 0, NULL);
2055
2056 return ret;
2057 }
2058
2059 static EGLBoolean
dri2_set_damage_region(_EGLDisplay * disp,_EGLSurface * surf,EGLint * rects,EGLint n_rects)2060 dri2_set_damage_region(_EGLDisplay *disp, _EGLSurface *surf,
2061 EGLint *rects, EGLint n_rects)
2062 {
2063 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2064 __DRIdrawable *drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2065
2066 if (!dri2_dpy->buffer_damage || !dri2_dpy->buffer_damage->set_damage_region)
2067 return EGL_FALSE;
2068
2069 dri2_dpy->buffer_damage->set_damage_region(drawable, n_rects, rects);
2070 return EGL_TRUE;
2071 }
2072
2073 static EGLBoolean
dri2_post_sub_buffer(_EGLDisplay * disp,_EGLSurface * surf,EGLint x,EGLint y,EGLint width,EGLint height)2074 dri2_post_sub_buffer(_EGLDisplay *disp, _EGLSurface *surf,
2075 EGLint x, EGLint y, EGLint width, EGLint height)
2076 {
2077 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2078 if (!dri2_dpy->vtbl->post_sub_buffer)
2079 return EGL_FALSE;
2080 return dri2_dpy->vtbl->post_sub_buffer(disp, surf, x, y, width, height);
2081 }
2082
2083 static EGLBoolean
dri2_copy_buffers(_EGLDisplay * disp,_EGLSurface * surf,void * native_pixmap_target)2084 dri2_copy_buffers(_EGLDisplay *disp, _EGLSurface *surf, 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(disp, surf, native_pixmap_target);
2090 }
2091
2092 static EGLint
dri2_query_buffer_age(_EGLDisplay * disp,_EGLSurface * surf)2093 dri2_query_buffer_age(_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(disp, surf);
2099 }
2100
2101 static EGLBoolean
dri2_wait_client(_EGLDisplay * disp,_EGLContext * ctx)2102 dri2_wait_client(_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 /* FIXME: If EGL allows frontbuffer rendering for window surfaces,
2109 * we need to copy fake to real here.*/
2110
2111 if (dri2_dpy->flush != NULL)
2112 dri2_dpy->flush->flush(dri_drawable);
2113
2114 return EGL_TRUE;
2115 }
2116
2117 static EGLBoolean
dri2_wait_native(EGLint engine)2118 dri2_wait_native(EGLint engine)
2119 {
2120 if (engine != EGL_CORE_NATIVE_ENGINE)
2121 return _eglError(EGL_BAD_PARAMETER, "eglWaitNative");
2122 /* glXWaitX(); */
2123
2124 return EGL_TRUE;
2125 }
2126
2127 static EGLBoolean
dri2_bind_tex_image(_EGLDisplay * disp,_EGLSurface * surf,EGLint buffer)2128 dri2_bind_tex_image(_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2129 {
2130 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2131 struct dri2_egl_context *dri2_ctx;
2132 _EGLContext *ctx;
2133 GLint format, target;
2134 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2135
2136 ctx = _eglGetCurrentContext();
2137 dri2_ctx = dri2_egl_context(ctx);
2138
2139 if (!_eglBindTexImage(disp, surf, buffer))
2140 return EGL_FALSE;
2141
2142 switch (surf->TextureFormat) {
2143 case EGL_TEXTURE_RGB:
2144 format = __DRI_TEXTURE_FORMAT_RGB;
2145 break;
2146 case EGL_TEXTURE_RGBA:
2147 format = __DRI_TEXTURE_FORMAT_RGBA;
2148 break;
2149 default:
2150 assert(!"Unexpected texture format in dri2_bind_tex_image()");
2151 format = __DRI_TEXTURE_FORMAT_RGBA;
2152 }
2153
2154 switch (surf->TextureTarget) {
2155 case EGL_TEXTURE_2D:
2156 target = GL_TEXTURE_2D;
2157 break;
2158 default:
2159 target = GL_TEXTURE_2D;
2160 assert(!"Unexpected texture target in dri2_bind_tex_image()");
2161 }
2162
2163 dri2_dpy->tex_buffer->setTexBuffer2(dri2_ctx->dri_context,
2164 target, format,
2165 dri_drawable);
2166
2167 return EGL_TRUE;
2168 }
2169
2170 static EGLBoolean
dri2_release_tex_image(_EGLDisplay * disp,_EGLSurface * surf,EGLint buffer)2171 dri2_release_tex_image(_EGLDisplay *disp, _EGLSurface *surf, EGLint buffer)
2172 {
2173 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2174 struct dri2_egl_context *dri2_ctx;
2175 _EGLContext *ctx;
2176 GLint target;
2177 __DRIdrawable *dri_drawable = dri2_dpy->vtbl->get_dri_drawable(surf);
2178
2179 ctx = _eglGetCurrentContext();
2180 dri2_ctx = dri2_egl_context(ctx);
2181
2182 if (!_eglReleaseTexImage(disp, surf, buffer))
2183 return EGL_FALSE;
2184
2185 switch (surf->TextureTarget) {
2186 case EGL_TEXTURE_2D:
2187 target = GL_TEXTURE_2D;
2188 break;
2189 default:
2190 assert(!"missing texture target");
2191 }
2192
2193 if (dri2_dpy->tex_buffer->base.version >= 3 &&
2194 dri2_dpy->tex_buffer->releaseTexBuffer != NULL) {
2195 dri2_dpy->tex_buffer->releaseTexBuffer(dri2_ctx->dri_context,
2196 target, dri_drawable);
2197 }
2198
2199 return EGL_TRUE;
2200 }
2201
2202 static _EGLImage*
dri2_create_image(_EGLDisplay * disp,_EGLContext * ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attr_list)2203 dri2_create_image(_EGLDisplay *disp, _EGLContext *ctx, EGLenum target,
2204 EGLClientBuffer buffer, const EGLint *attr_list)
2205 {
2206 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2207 return dri2_dpy->vtbl->create_image(disp, ctx, target, buffer,
2208 attr_list);
2209 }
2210
2211 _EGLImage *
dri2_create_image_from_dri(_EGLDisplay * disp,__DRIimage * dri_image)2212 dri2_create_image_from_dri(_EGLDisplay *disp, __DRIimage *dri_image)
2213 {
2214 struct dri2_egl_image *dri2_img;
2215
2216 if (dri_image == NULL) {
2217 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2218 return NULL;
2219 }
2220
2221 dri2_img = malloc(sizeof *dri2_img);
2222 if (!dri2_img) {
2223 _eglError(EGL_BAD_ALLOC, "dri2_create_image");
2224 return NULL;
2225 }
2226
2227 _eglInitImage(&dri2_img->base, disp);
2228
2229 dri2_img->dri_image = dri_image;
2230
2231 return &dri2_img->base;
2232 }
2233
2234 /**
2235 * Translate a DRI Image extension error code into an EGL error code.
2236 */
2237 static EGLint
egl_error_from_dri_image_error(int dri_error)2238 egl_error_from_dri_image_error(int dri_error)
2239 {
2240 switch (dri_error) {
2241 case __DRI_IMAGE_ERROR_SUCCESS:
2242 return EGL_SUCCESS;
2243 case __DRI_IMAGE_ERROR_BAD_ALLOC:
2244 return EGL_BAD_ALLOC;
2245 case __DRI_IMAGE_ERROR_BAD_MATCH:
2246 return EGL_BAD_MATCH;
2247 case __DRI_IMAGE_ERROR_BAD_PARAMETER:
2248 return EGL_BAD_PARAMETER;
2249 case __DRI_IMAGE_ERROR_BAD_ACCESS:
2250 return EGL_BAD_ACCESS;
2251 default:
2252 assert(!"unknown dri_error code");
2253 return EGL_BAD_ALLOC;
2254 }
2255 }
2256
2257 static _EGLImage *
dri2_create_image_khr_renderbuffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)2258 dri2_create_image_khr_renderbuffer(_EGLDisplay *disp, _EGLContext *ctx,
2259 EGLClientBuffer buffer,
2260 const EGLint *attr_list)
2261 {
2262 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2263 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2264 GLuint renderbuffer = (GLuint) (uintptr_t) buffer;
2265 __DRIimage *dri_image;
2266
2267 if (renderbuffer == 0) {
2268 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2269 return EGL_NO_IMAGE_KHR;
2270 }
2271
2272 if (!disp->Extensions.KHR_gl_renderbuffer_image) {
2273 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2274 return EGL_NO_IMAGE_KHR;
2275 }
2276
2277 if (dri2_dpy->image->base.version >= 17 &&
2278 dri2_dpy->image->createImageFromRenderbuffer2) {
2279 unsigned error = ~0;
2280
2281 dri_image = dri2_dpy->image->createImageFromRenderbuffer2(
2282 dri2_ctx->dri_context, renderbuffer, NULL, &error);
2283
2284 assert(!!dri_image == (error == __DRI_IMAGE_ERROR_SUCCESS));
2285
2286 if (!dri_image) {
2287 _eglError(egl_error_from_dri_image_error(error), "dri2_create_image_khr");
2288 return EGL_NO_IMAGE_KHR;
2289 }
2290 } else {
2291 dri_image = dri2_dpy->image->createImageFromRenderbuffer(
2292 dri2_ctx->dri_context, renderbuffer, NULL);
2293 if (!dri_image) {
2294 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2295 return EGL_NO_IMAGE_KHR;
2296 }
2297 }
2298
2299 return dri2_create_image_from_dri(disp, dri_image);
2300 }
2301
2302 #ifdef HAVE_WAYLAND_PLATFORM
2303
2304 /* This structure describes how a wl_buffer maps to one or more
2305 * __DRIimages. A wl_drm_buffer stores the wl_drm format code and the
2306 * offsets and strides of the planes in the buffer. This table maps a
2307 * wl_drm format code to a description of the planes in the buffer
2308 * that lets us create a __DRIimage for each of the planes. */
2309
2310 static const struct wl_drm_components_descriptor {
2311 uint32_t dri_components;
2312 EGLint components;
2313 int nplanes;
2314 } wl_drm_components[] = {
2315 { __DRI_IMAGE_COMPONENTS_RGB, EGL_TEXTURE_RGB, 1 },
2316 { __DRI_IMAGE_COMPONENTS_RGBA, EGL_TEXTURE_RGBA, 1 },
2317 { __DRI_IMAGE_COMPONENTS_Y_U_V, EGL_TEXTURE_Y_U_V_WL, 3 },
2318 { __DRI_IMAGE_COMPONENTS_Y_UV, EGL_TEXTURE_Y_UV_WL, 2 },
2319 { __DRI_IMAGE_COMPONENTS_Y_XUXV, EGL_TEXTURE_Y_XUXV_WL, 2 },
2320 };
2321
2322 static _EGLImage *
dri2_create_image_wayland_wl_buffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer _buffer,const EGLint * attr_list)2323 dri2_create_image_wayland_wl_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2324 EGLClientBuffer _buffer,
2325 const EGLint *attr_list)
2326 {
2327 struct wl_drm_buffer *buffer;
2328 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2329 const struct wl_drm_components_descriptor *f;
2330 __DRIimage *dri_image;
2331 _EGLImageAttribs attrs;
2332 int32_t plane;
2333
2334 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm,
2335 (struct wl_resource *) _buffer);
2336 if (!buffer)
2337 return NULL;
2338
2339 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2340 return NULL;
2341
2342 plane = attrs.PlaneWL;
2343 f = buffer->driver_format;
2344 if (plane < 0 || plane >= f->nplanes) {
2345 _eglError(EGL_BAD_PARAMETER,
2346 "dri2_create_image_wayland_wl_buffer (plane out of bounds)");
2347 return NULL;
2348 }
2349
2350 dri_image = dri2_dpy->image->fromPlanar(buffer->driver_buffer, plane, NULL);
2351 if (dri_image == NULL && plane == 0)
2352 dri_image = dri2_dpy->image->dupImage(buffer->driver_buffer, NULL);
2353 if (dri_image == NULL) {
2354 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_wayland_wl_buffer");
2355 return NULL;
2356 }
2357
2358 return dri2_create_image_from_dri(disp, dri_image);
2359 }
2360 #endif
2361
2362 static EGLBoolean
dri2_get_sync_values_chromium(_EGLDisplay * disp,_EGLSurface * surf,EGLuint64KHR * ust,EGLuint64KHR * msc,EGLuint64KHR * sbc)2363 dri2_get_sync_values_chromium(_EGLDisplay *disp, _EGLSurface *surf,
2364 EGLuint64KHR *ust, EGLuint64KHR *msc,
2365 EGLuint64KHR *sbc)
2366 {
2367 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2368 if (!dri2_dpy->vtbl->get_sync_values)
2369 return EGL_FALSE;
2370 return dri2_dpy->vtbl->get_sync_values(disp, surf, ust, msc, sbc);
2371 }
2372
2373 /**
2374 * Set the error code after a call to
2375 * dri2_egl_image::dri_image::createImageFromTexture.
2376 */
2377 static void
dri2_create_image_khr_texture_error(int dri_error)2378 dri2_create_image_khr_texture_error(int dri_error)
2379 {
2380 EGLint egl_error = egl_error_from_dri_image_error(dri_error);
2381
2382 if (egl_error != EGL_SUCCESS)
2383 _eglError(egl_error, "dri2_create_image_khr_texture");
2384 }
2385
2386 static _EGLImage *
dri2_create_image_khr_texture(_EGLDisplay * disp,_EGLContext * ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attr_list)2387 dri2_create_image_khr_texture(_EGLDisplay *disp, _EGLContext *ctx,
2388 EGLenum target,
2389 EGLClientBuffer buffer,
2390 const EGLint *attr_list)
2391 {
2392 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2393 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
2394 struct dri2_egl_image *dri2_img;
2395 GLuint texture = (GLuint) (uintptr_t) buffer;
2396 _EGLImageAttribs attrs;
2397 GLuint depth;
2398 GLenum gl_target;
2399 unsigned error;
2400
2401 if (texture == 0) {
2402 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2403 return EGL_NO_IMAGE_KHR;
2404 }
2405
2406 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2407 return EGL_NO_IMAGE_KHR;
2408
2409 switch (target) {
2410 case EGL_GL_TEXTURE_2D_KHR:
2411 if (!disp->Extensions.KHR_gl_texture_2D_image) {
2412 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2413 return EGL_NO_IMAGE_KHR;
2414 }
2415 depth = 0;
2416 gl_target = GL_TEXTURE_2D;
2417 break;
2418 case EGL_GL_TEXTURE_3D_KHR:
2419 if (!disp->Extensions.KHR_gl_texture_3D_image) {
2420 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2421 return EGL_NO_IMAGE_KHR;
2422 }
2423
2424 depth = attrs.GLTextureZOffset;
2425 gl_target = GL_TEXTURE_3D;
2426 break;
2427 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
2428 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
2429 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
2430 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
2431 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
2432 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
2433 if (!disp->Extensions.KHR_gl_texture_cubemap_image) {
2434 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
2435 return EGL_NO_IMAGE_KHR;
2436 }
2437
2438 depth = target - EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR;
2439 gl_target = GL_TEXTURE_CUBE_MAP;
2440 break;
2441 default:
2442 unreachable("Unexpected target in dri2_create_image_khr_texture()");
2443 return EGL_NO_IMAGE_KHR;
2444 }
2445
2446 dri2_img = malloc(sizeof *dri2_img);
2447 if (!dri2_img) {
2448 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2449 return EGL_NO_IMAGE_KHR;
2450 }
2451
2452 _eglInitImage(&dri2_img->base, disp);
2453
2454 dri2_img->dri_image =
2455 dri2_dpy->image->createImageFromTexture(dri2_ctx->dri_context,
2456 gl_target,
2457 texture,
2458 depth,
2459 attrs.GLTextureLevel,
2460 &error,
2461 dri2_img);
2462 dri2_create_image_khr_texture_error(error);
2463
2464 if (!dri2_img->dri_image) {
2465 free(dri2_img);
2466 return EGL_NO_IMAGE_KHR;
2467 }
2468 return &dri2_img->base;
2469 }
2470
2471 static EGLBoolean
dri2_query_surface(_EGLDisplay * disp,_EGLSurface * surf,EGLint attribute,EGLint * value)2472 dri2_query_surface(_EGLDisplay *disp, _EGLSurface *surf,
2473 EGLint attribute, EGLint *value)
2474 {
2475 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2476 if (!dri2_dpy->vtbl->query_surface)
2477 return _eglQuerySurface(disp, surf, attribute, value);
2478 return dri2_dpy->vtbl->query_surface(disp, surf, attribute, value);
2479 }
2480
2481 static struct wl_buffer*
dri2_create_wayland_buffer_from_image(_EGLDisplay * disp,_EGLImage * img)2482 dri2_create_wayland_buffer_from_image(_EGLDisplay *disp, _EGLImage *img)
2483 {
2484 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2485 if (!dri2_dpy->vtbl->create_wayland_buffer_from_image)
2486 return NULL;
2487 return dri2_dpy->vtbl->create_wayland_buffer_from_image(disp, img);
2488 }
2489
2490 #ifdef HAVE_LIBDRM
2491 static _EGLImage *
dri2_create_image_mesa_drm_buffer(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)2492 dri2_create_image_mesa_drm_buffer(_EGLDisplay *disp, _EGLContext *ctx,
2493 EGLClientBuffer buffer, const EGLint *attr_list)
2494 {
2495 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2496 EGLint format, name, pitch;
2497 _EGLImageAttribs attrs;
2498 __DRIimage *dri_image;
2499
2500 name = (EGLint) (uintptr_t) buffer;
2501
2502 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2503 return NULL;
2504
2505 if (attrs.Width <= 0 || attrs.Height <= 0 ||
2506 attrs.DRMBufferStrideMESA <= 0) {
2507 _eglError(EGL_BAD_PARAMETER,
2508 "bad width, height or stride");
2509 return NULL;
2510 }
2511
2512 switch (attrs.DRMBufferFormatMESA) {
2513 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2514 format = __DRI_IMAGE_FORMAT_ARGB8888;
2515 pitch = attrs.DRMBufferStrideMESA;
2516 break;
2517 default:
2518 _eglError(EGL_BAD_PARAMETER,
2519 "dri2_create_image_khr: unsupported pixmap depth");
2520 return NULL;
2521 }
2522
2523 dri_image =
2524 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
2525 attrs.Width,
2526 attrs.Height,
2527 format,
2528 name,
2529 pitch,
2530 NULL);
2531
2532 return dri2_create_image_from_dri(disp, dri_image);
2533 }
2534
2535 static EGLBoolean
dri2_check_dma_buf_attribs(const _EGLImageAttribs * attrs)2536 dri2_check_dma_buf_attribs(const _EGLImageAttribs *attrs)
2537 {
2538 /**
2539 * The spec says:
2540 *
2541 * "Required attributes and their values are as follows:
2542 *
2543 * * EGL_WIDTH & EGL_HEIGHT: The logical dimensions of the buffer in pixels
2544 *
2545 * * EGL_LINUX_DRM_FOURCC_EXT: The pixel format of the buffer, as specified
2546 * by drm_fourcc.h and used as the pixel_format parameter of the
2547 * drm_mode_fb_cmd2 ioctl."
2548 *
2549 * and
2550 *
2551 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2552 * incomplete, EGL_BAD_PARAMETER is generated."
2553 */
2554 if (attrs->Width <= 0 || attrs->Height <= 0 ||
2555 !attrs->DMABufFourCC.IsPresent)
2556 return _eglError(EGL_BAD_PARAMETER, "attribute(s) missing");
2557
2558 /**
2559 * Also:
2560 *
2561 * "If <target> is EGL_LINUX_DMA_BUF_EXT and one or more of the values
2562 * specified for a plane's pitch or offset isn't supported by EGL,
2563 * EGL_BAD_ACCESS is generated."
2564 */
2565 for (unsigned i = 0; i < ARRAY_SIZE(attrs->DMABufPlanePitches); ++i) {
2566 if (attrs->DMABufPlanePitches[i].IsPresent &&
2567 attrs->DMABufPlanePitches[i].Value <= 0)
2568 return _eglError(EGL_BAD_ACCESS, "invalid pitch");
2569 }
2570
2571 /**
2572 * If <target> is EGL_LINUX_DMA_BUF_EXT, both or neither of the following
2573 * attribute values may be given.
2574 *
2575 * This is referring to EGL_DMA_BUF_PLANE0_MODIFIER_LO_EXT and
2576 * EGL_DMA_BUF_PLANE0_MODIFIER_HI_EXT, and the same for other planes.
2577 */
2578 for (unsigned i = 0; i < DMA_BUF_MAX_PLANES; ++i) {
2579 if (attrs->DMABufPlaneModifiersLo[i].IsPresent !=
2580 attrs->DMABufPlaneModifiersHi[i].IsPresent)
2581 return _eglError(EGL_BAD_PARAMETER, "modifier attribute lo or hi missing");
2582 }
2583
2584 /* Although the EGL_EXT_image_dma_buf_import_modifiers spec doesn't
2585 * mandate it, we only accept the same modifier across all planes. */
2586 for (unsigned i = 1; i < DMA_BUF_MAX_PLANES; ++i) {
2587 if (attrs->DMABufPlaneFds[i].IsPresent) {
2588 if ((attrs->DMABufPlaneModifiersLo[0].IsPresent !=
2589 attrs->DMABufPlaneModifiersLo[i].IsPresent) ||
2590 (attrs->DMABufPlaneModifiersLo[0].Value !=
2591 attrs->DMABufPlaneModifiersLo[i].Value) ||
2592 (attrs->DMABufPlaneModifiersHi[0].Value !=
2593 attrs->DMABufPlaneModifiersHi[i].Value))
2594 return _eglError(EGL_BAD_PARAMETER, "modifier attributes not equal");
2595 }
2596 }
2597
2598 return EGL_TRUE;
2599 }
2600
2601 /* Returns the total number of planes for the format or zero if it isn't a
2602 * valid fourcc format.
2603 */
2604 static unsigned
dri2_num_fourcc_format_planes(EGLint format)2605 dri2_num_fourcc_format_planes(EGLint format)
2606 {
2607 switch (format) {
2608 case DRM_FORMAT_R8:
2609 case DRM_FORMAT_RG88:
2610 case DRM_FORMAT_GR88:
2611 case DRM_FORMAT_R16:
2612 case DRM_FORMAT_GR1616:
2613 case DRM_FORMAT_RGB332:
2614 case DRM_FORMAT_BGR233:
2615 case DRM_FORMAT_XRGB4444:
2616 case DRM_FORMAT_XBGR4444:
2617 case DRM_FORMAT_RGBX4444:
2618 case DRM_FORMAT_BGRX4444:
2619 case DRM_FORMAT_ARGB4444:
2620 case DRM_FORMAT_ABGR4444:
2621 case DRM_FORMAT_RGBA4444:
2622 case DRM_FORMAT_BGRA4444:
2623 case DRM_FORMAT_XRGB1555:
2624 case DRM_FORMAT_XBGR1555:
2625 case DRM_FORMAT_RGBX5551:
2626 case DRM_FORMAT_BGRX5551:
2627 case DRM_FORMAT_ARGB1555:
2628 case DRM_FORMAT_ABGR1555:
2629 case DRM_FORMAT_RGBA5551:
2630 case DRM_FORMAT_BGRA5551:
2631 case DRM_FORMAT_RGB565:
2632 case DRM_FORMAT_BGR565:
2633 case DRM_FORMAT_RGB888:
2634 case DRM_FORMAT_BGR888:
2635 case DRM_FORMAT_XRGB8888:
2636 case DRM_FORMAT_XBGR8888:
2637 case DRM_FORMAT_RGBX8888:
2638 case DRM_FORMAT_BGRX8888:
2639 case DRM_FORMAT_ARGB8888:
2640 case DRM_FORMAT_ABGR8888:
2641 case DRM_FORMAT_RGBA8888:
2642 case DRM_FORMAT_BGRA8888:
2643 case DRM_FORMAT_XRGB2101010:
2644 case DRM_FORMAT_XBGR2101010:
2645 case DRM_FORMAT_RGBX1010102:
2646 case DRM_FORMAT_BGRX1010102:
2647 case DRM_FORMAT_ARGB2101010:
2648 case DRM_FORMAT_ABGR2101010:
2649 case DRM_FORMAT_RGBA1010102:
2650 case DRM_FORMAT_BGRA1010102:
2651 case DRM_FORMAT_XBGR16161616F:
2652 case DRM_FORMAT_ABGR16161616F:
2653 case DRM_FORMAT_YUYV:
2654 case DRM_FORMAT_YVYU:
2655 case DRM_FORMAT_UYVY:
2656 case DRM_FORMAT_VYUY:
2657 case DRM_FORMAT_AYUV:
2658 case DRM_FORMAT_XYUV8888:
2659 return 1;
2660
2661 case DRM_FORMAT_NV12:
2662 case DRM_FORMAT_NV21:
2663 case DRM_FORMAT_NV16:
2664 case DRM_FORMAT_NV61:
2665 case DRM_FORMAT_P010:
2666 case DRM_FORMAT_P012:
2667 case DRM_FORMAT_P016:
2668 return 2;
2669
2670 case DRM_FORMAT_YUV410:
2671 case DRM_FORMAT_YVU410:
2672 case DRM_FORMAT_YUV411:
2673 case DRM_FORMAT_YVU411:
2674 case DRM_FORMAT_YUV420:
2675 case DRM_FORMAT_YVU420:
2676 case DRM_FORMAT_YUV422:
2677 case DRM_FORMAT_YVU422:
2678 case DRM_FORMAT_YUV444:
2679 case DRM_FORMAT_YVU444:
2680 return 3;
2681
2682 default:
2683 return 0;
2684 }
2685 }
2686
2687 /* Returns the total number of file descriptors. Zero indicates an error. */
2688 static unsigned
dri2_check_dma_buf_format(const _EGLImageAttribs * attrs)2689 dri2_check_dma_buf_format(const _EGLImageAttribs *attrs)
2690 {
2691 unsigned plane_n = dri2_num_fourcc_format_planes(attrs->DMABufFourCC.Value);
2692 if (plane_n == 0) {
2693 _eglError(EGL_BAD_MATCH, "unknown drm fourcc format");
2694 return 0;
2695 }
2696
2697 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; i++) {
2698 /**
2699 * The modifiers extension spec says:
2700 *
2701 * "Modifiers may modify any attribute of a buffer import, including
2702 * but not limited to adding extra planes to a format which
2703 * otherwise does not have those planes. As an example, a modifier
2704 * may add a plane for an external compression buffer to a
2705 * single-plane format. The exact meaning and effect of any
2706 * modifier is canonically defined by drm_fourcc.h, not as part of
2707 * this extension."
2708 */
2709 if (attrs->DMABufPlaneModifiersLo[i].IsPresent &&
2710 attrs->DMABufPlaneModifiersHi[i].IsPresent) {
2711 plane_n = i + 1;
2712 }
2713 }
2714
2715 /**
2716 * The spec says:
2717 *
2718 * "* If <target> is EGL_LINUX_DMA_BUF_EXT, and the list of attributes is
2719 * incomplete, EGL_BAD_PARAMETER is generated."
2720 */
2721 for (unsigned i = 0; i < plane_n; ++i) {
2722 if (!attrs->DMABufPlaneFds[i].IsPresent ||
2723 !attrs->DMABufPlaneOffsets[i].IsPresent ||
2724 !attrs->DMABufPlanePitches[i].IsPresent) {
2725 _eglError(EGL_BAD_PARAMETER, "plane attribute(s) missing");
2726 return 0;
2727 }
2728 }
2729
2730 /**
2731 * The spec also says:
2732 *
2733 * "If <target> is EGL_LINUX_DMA_BUF_EXT, and the EGL_LINUX_DRM_FOURCC_EXT
2734 * attribute indicates a single-plane format, EGL_BAD_ATTRIBUTE is
2735 * generated if any of the EGL_DMA_BUF_PLANE1_* or EGL_DMA_BUF_PLANE2_*
2736 * or EGL_DMA_BUF_PLANE3_* attributes are specified."
2737 */
2738 for (unsigned i = plane_n; i < DMA_BUF_MAX_PLANES; ++i) {
2739 if (attrs->DMABufPlaneFds[i].IsPresent ||
2740 attrs->DMABufPlaneOffsets[i].IsPresent ||
2741 attrs->DMABufPlanePitches[i].IsPresent) {
2742 _eglError(EGL_BAD_ATTRIBUTE, "too many plane attributes");
2743 return 0;
2744 }
2745 }
2746
2747 return plane_n;
2748 }
2749
2750 static EGLBoolean
dri2_query_dma_buf_formats(_EGLDisplay * disp,EGLint max,EGLint * formats,EGLint * count)2751 dri2_query_dma_buf_formats(_EGLDisplay *disp, EGLint max,
2752 EGLint *formats, EGLint *count)
2753 {
2754 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2755 if (max < 0 || (max > 0 && formats == NULL))
2756 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2757
2758 if (dri2_dpy->image->base.version < 15 ||
2759 dri2_dpy->image->queryDmaBufFormats == NULL)
2760 return EGL_FALSE;
2761
2762 if (!dri2_dpy->image->queryDmaBufFormats(dri2_dpy->dri_screen, max,
2763 formats, count))
2764 return EGL_FALSE;
2765
2766 if (max > 0) {
2767 /* Assert that all of the formats returned are actually fourcc formats.
2768 * Some day, if we want the internal interface function to be able to
2769 * return the fake fourcc formats defined in dri_interface.h, we'll have
2770 * to do something more clever here to pair the list down to just real
2771 * fourcc formats so that we don't leak the fake internal ones.
2772 */
2773 for (int i = 0; i < *count; i++) {
2774 assert(dri2_num_fourcc_format_planes(formats[i]) > 0);
2775 }
2776 }
2777
2778 return EGL_TRUE;
2779 }
2780
2781 static EGLBoolean
dri2_query_dma_buf_modifiers(_EGLDisplay * disp,EGLint format,EGLint max,EGLuint64KHR * modifiers,EGLBoolean * external_only,EGLint * count)2782 dri2_query_dma_buf_modifiers(_EGLDisplay *disp, EGLint format,
2783 EGLint max, EGLuint64KHR *modifiers,
2784 EGLBoolean *external_only, EGLint *count)
2785 {
2786 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2787
2788 if (dri2_num_fourcc_format_planes(format) == 0)
2789 return _eglError(EGL_BAD_PARAMETER, "invalid fourcc format");
2790
2791 if (max < 0)
2792 return _eglError(EGL_BAD_PARAMETER, "invalid value for max count of formats");
2793
2794 if (max > 0 && modifiers == NULL)
2795 return _eglError(EGL_BAD_PARAMETER, "invalid modifiers array");
2796
2797 if (dri2_dpy->image->base.version < 15 ||
2798 dri2_dpy->image->queryDmaBufModifiers == NULL)
2799 return EGL_FALSE;
2800
2801 if (dri2_dpy->image->queryDmaBufModifiers(dri2_dpy->dri_screen, format,
2802 max, modifiers,
2803 (unsigned int *) external_only,
2804 count) == false)
2805 return _eglError(EGL_BAD_PARAMETER, "invalid format");
2806
2807 return EGL_TRUE;
2808 }
2809
2810 /**
2811 * The spec says:
2812 *
2813 * "If eglCreateImageKHR is successful for a EGL_LINUX_DMA_BUF_EXT target, the
2814 * EGL will take a reference to the dma_buf(s) which it will release at any
2815 * time while the EGLDisplay is initialized. It is the responsibility of the
2816 * application to close the dma_buf file descriptors."
2817 *
2818 * Therefore we must never close or otherwise modify the file descriptors.
2819 */
2820 _EGLImage *
dri2_create_image_dma_buf(_EGLDisplay * disp,_EGLContext * ctx,EGLClientBuffer buffer,const EGLint * attr_list)2821 dri2_create_image_dma_buf(_EGLDisplay *disp, _EGLContext *ctx,
2822 EGLClientBuffer buffer, const EGLint *attr_list)
2823 {
2824 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2825 _EGLImage *res;
2826 _EGLImageAttribs attrs;
2827 __DRIimage *dri_image;
2828 unsigned num_fds;
2829 int fds[DMA_BUF_MAX_PLANES];
2830 int pitches[DMA_BUF_MAX_PLANES];
2831 int offsets[DMA_BUF_MAX_PLANES];
2832 uint64_t modifier;
2833 bool has_modifier = false;
2834 unsigned error;
2835
2836 /**
2837 * The spec says:
2838 *
2839 * ""* If <target> is EGL_LINUX_DMA_BUF_EXT and <buffer> is not NULL, the
2840 * error EGL_BAD_PARAMETER is generated."
2841 */
2842 if (buffer != NULL) {
2843 _eglError(EGL_BAD_PARAMETER, "buffer not NULL");
2844 return NULL;
2845 }
2846
2847 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2848 return NULL;
2849
2850 if (!dri2_check_dma_buf_attribs(&attrs))
2851 return NULL;
2852
2853 num_fds = dri2_check_dma_buf_format(&attrs);
2854 if (!num_fds)
2855 return NULL;
2856
2857 for (unsigned i = 0; i < num_fds; ++i) {
2858 fds[i] = attrs.DMABufPlaneFds[i].Value;
2859 pitches[i] = attrs.DMABufPlanePitches[i].Value;
2860 offsets[i] = attrs.DMABufPlaneOffsets[i].Value;
2861 }
2862
2863 /* dri2_check_dma_buf_attribs ensures that the modifier, if available,
2864 * will be present in attrs.DMABufPlaneModifiersLo[0] and
2865 * attrs.DMABufPlaneModifiersHi[0] */
2866 if (attrs.DMABufPlaneModifiersLo[0].IsPresent) {
2867 modifier = combine_u32_into_u64(attrs.DMABufPlaneModifiersHi[0].Value,
2868 attrs.DMABufPlaneModifiersLo[0].Value);
2869 has_modifier = true;
2870 }
2871
2872 if (attrs.ProtectedContent) {
2873 if (dri2_dpy->image->base.version < 18 ||
2874 dri2_dpy->image->createImageFromDmaBufs3 == NULL) {
2875 _eglError(EGL_BAD_MATCH, "unsupported protected_content attribute");
2876 return EGL_NO_IMAGE_KHR;
2877 }
2878 if (!has_modifier)
2879 modifier = DRM_FORMAT_MOD_INVALID;
2880
2881 dri_image =
2882 dri2_dpy->image->createImageFromDmaBufs3(dri2_dpy->dri_screen,
2883 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2884 modifier, fds, num_fds, pitches, offsets,
2885 attrs.DMABufYuvColorSpaceHint.Value,
2886 attrs.DMABufSampleRangeHint.Value,
2887 attrs.DMABufChromaHorizontalSiting.Value,
2888 attrs.DMABufChromaVerticalSiting.Value,
2889 attrs.ProtectedContent ? __DRI_IMAGE_PROTECTED_CONTENT_FLAG : 0,
2890 &error,
2891 NULL);
2892 }
2893 else if (has_modifier) {
2894 if (dri2_dpy->image->base.version < 15 ||
2895 dri2_dpy->image->createImageFromDmaBufs2 == NULL) {
2896 _eglError(EGL_BAD_MATCH, "unsupported dma_buf format modifier");
2897 return EGL_NO_IMAGE_KHR;
2898 }
2899 dri_image =
2900 dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
2901 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2902 modifier, 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 else {
2911 dri_image =
2912 dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
2913 attrs.Width, attrs.Height, attrs.DMABufFourCC.Value,
2914 fds, num_fds, pitches, offsets,
2915 attrs.DMABufYuvColorSpaceHint.Value,
2916 attrs.DMABufSampleRangeHint.Value,
2917 attrs.DMABufChromaHorizontalSiting.Value,
2918 attrs.DMABufChromaVerticalSiting.Value,
2919 &error,
2920 NULL);
2921 }
2922 dri2_create_image_khr_texture_error(error);
2923
2924 if (!dri_image)
2925 return EGL_NO_IMAGE_KHR;
2926
2927 res = dri2_create_image_from_dri(disp, dri_image);
2928
2929 return res;
2930 }
2931 static _EGLImage *
dri2_create_drm_image_mesa(_EGLDisplay * disp,const EGLint * attr_list)2932 dri2_create_drm_image_mesa(_EGLDisplay *disp, const EGLint *attr_list)
2933 {
2934 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
2935 struct dri2_egl_image *dri2_img;
2936 _EGLImageAttribs attrs;
2937 unsigned int dri_use, valid_mask;
2938 int format;
2939
2940 if (!attr_list) {
2941 _eglError(EGL_BAD_PARAMETER, __func__);
2942 return EGL_NO_IMAGE_KHR;
2943 }
2944
2945 if (!_eglParseImageAttribList(&attrs, disp, attr_list))
2946 return EGL_NO_IMAGE_KHR;
2947
2948 if (attrs.Width <= 0 || attrs.Height <= 0) {
2949 _eglError(EGL_BAD_PARAMETER, __func__);
2950 return EGL_NO_IMAGE_KHR;
2951 }
2952
2953 switch (attrs.DRMBufferFormatMESA) {
2954 case EGL_DRM_BUFFER_FORMAT_ARGB32_MESA:
2955 format = __DRI_IMAGE_FORMAT_ARGB8888;
2956 break;
2957 default:
2958 _eglError(EGL_BAD_PARAMETER, __func__);
2959 return EGL_NO_IMAGE_KHR;
2960 }
2961
2962 valid_mask =
2963 EGL_DRM_BUFFER_USE_SCANOUT_MESA |
2964 EGL_DRM_BUFFER_USE_SHARE_MESA |
2965 EGL_DRM_BUFFER_USE_CURSOR_MESA;
2966 if (attrs.DRMBufferUseMESA & ~valid_mask) {
2967 _eglError(EGL_BAD_PARAMETER, __func__);
2968 return EGL_NO_IMAGE_KHR;
2969 }
2970
2971 dri_use = 0;
2972 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SHARE_MESA)
2973 dri_use |= __DRI_IMAGE_USE_SHARE;
2974 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_SCANOUT_MESA)
2975 dri_use |= __DRI_IMAGE_USE_SCANOUT;
2976 if (attrs.DRMBufferUseMESA & EGL_DRM_BUFFER_USE_CURSOR_MESA)
2977 dri_use |= __DRI_IMAGE_USE_CURSOR;
2978
2979 dri2_img = malloc(sizeof *dri2_img);
2980 if (!dri2_img) {
2981 _eglError(EGL_BAD_ALLOC, "dri2_create_image_khr");
2982 return EGL_NO_IMAGE_KHR;
2983 }
2984
2985 _eglInitImage(&dri2_img->base, disp);
2986
2987 dri2_img->dri_image =
2988 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
2989 attrs.Width, attrs.Height,
2990 format, dri_use, dri2_img);
2991 if (dri2_img->dri_image == NULL) {
2992 free(dri2_img);
2993 _eglError(EGL_BAD_ALLOC, "dri2_create_drm_image_mesa");
2994 return EGL_NO_IMAGE_KHR;
2995 }
2996
2997 return &dri2_img->base;
2998 }
2999
3000 static EGLBoolean
dri2_export_drm_image_mesa(_EGLDisplay * disp,_EGLImage * img,EGLint * name,EGLint * handle,EGLint * stride)3001 dri2_export_drm_image_mesa(_EGLDisplay *disp, _EGLImage *img,
3002 EGLint *name, EGLint *handle, EGLint *stride)
3003 {
3004 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3005 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3006
3007 if (name && !dri2_dpy->image->queryImage(dri2_img->dri_image,
3008 __DRI_IMAGE_ATTRIB_NAME, name))
3009 return _eglError(EGL_BAD_ALLOC, "dri2_export_drm_image_mesa");
3010
3011 if (handle)
3012 dri2_dpy->image->queryImage(dri2_img->dri_image,
3013 __DRI_IMAGE_ATTRIB_HANDLE, handle);
3014
3015 if (stride)
3016 dri2_dpy->image->queryImage(dri2_img->dri_image,
3017 __DRI_IMAGE_ATTRIB_STRIDE, stride);
3018
3019 return EGL_TRUE;
3020 }
3021
3022 /**
3023 * Checks if we can support EGL_MESA_image_dma_buf_export on this image.
3024
3025 * The spec provides a boolean return for the driver to reject exporting for
3026 * basically any reason, but doesn't specify any particular error cases. For
3027 * now, we just fail if we don't have a DRM fourcc for the format.
3028 */
3029 static bool
dri2_can_export_dma_buf_image(_EGLDisplay * disp,_EGLImage * img)3030 dri2_can_export_dma_buf_image(_EGLDisplay *disp, _EGLImage *img)
3031 {
3032 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3033 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3034 EGLint fourcc;
3035
3036 if (!dri2_dpy->image->queryImage(dri2_img->dri_image,
3037 __DRI_IMAGE_ATTRIB_FOURCC, &fourcc)) {
3038 return false;
3039 }
3040
3041 return true;
3042 }
3043
3044 static EGLBoolean
dri2_export_dma_buf_image_query_mesa(_EGLDisplay * disp,_EGLImage * img,EGLint * fourcc,EGLint * nplanes,EGLuint64KHR * modifiers)3045 dri2_export_dma_buf_image_query_mesa(_EGLDisplay *disp, _EGLImage *img,
3046 EGLint *fourcc, EGLint *nplanes,
3047 EGLuint64KHR *modifiers)
3048 {
3049 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3050 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3051 int num_planes;
3052
3053 if (!dri2_can_export_dma_buf_image(disp, img))
3054 return EGL_FALSE;
3055
3056 dri2_dpy->image->queryImage(dri2_img->dri_image,
3057 __DRI_IMAGE_ATTRIB_NUM_PLANES, &num_planes);
3058 if (nplanes)
3059 *nplanes = num_planes;
3060
3061 if (fourcc)
3062 dri2_dpy->image->queryImage(dri2_img->dri_image,
3063 __DRI_IMAGE_ATTRIB_FOURCC, fourcc);
3064
3065 if (modifiers) {
3066 int mod_hi, mod_lo;
3067 uint64_t modifier = DRM_FORMAT_MOD_INVALID;
3068 bool query;
3069
3070 query = dri2_dpy->image->queryImage(dri2_img->dri_image,
3071 __DRI_IMAGE_ATTRIB_MODIFIER_UPPER,
3072 &mod_hi);
3073 query &= dri2_dpy->image->queryImage(dri2_img->dri_image,
3074 __DRI_IMAGE_ATTRIB_MODIFIER_LOWER,
3075 &mod_lo);
3076 if (query)
3077 modifier = combine_u32_into_u64 (mod_hi, mod_lo);
3078
3079 for (int i = 0; i < num_planes; i++)
3080 modifiers[i] = modifier;
3081 }
3082
3083 return EGL_TRUE;
3084 }
3085
3086 static EGLBoolean
dri2_export_dma_buf_image_mesa(_EGLDisplay * disp,_EGLImage * img,int * fds,EGLint * strides,EGLint * offsets)3087 dri2_export_dma_buf_image_mesa(_EGLDisplay *disp, _EGLImage *img,
3088 int *fds, EGLint *strides, EGLint *offsets)
3089 {
3090 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3091 struct dri2_egl_image *dri2_img = dri2_egl_image(img);
3092 EGLint nplanes;
3093
3094 if (!dri2_can_export_dma_buf_image(disp, img))
3095 return EGL_FALSE;
3096
3097 /* EGL_MESA_image_dma_buf_export spec says:
3098 * "If the number of fds is less than the number of planes, then
3099 * subsequent fd slots should contain -1."
3100 */
3101 if (fds) {
3102 /* Query nplanes so that we know how big the given array is. */
3103 dri2_dpy->image->queryImage(dri2_img->dri_image,
3104 __DRI_IMAGE_ATTRIB_NUM_PLANES, &nplanes);
3105 memset(fds, -1, nplanes * sizeof(int));
3106 }
3107
3108 /* rework later to provide multiple fds/strides/offsets */
3109 if (fds)
3110 dri2_dpy->image->queryImage(dri2_img->dri_image,
3111 __DRI_IMAGE_ATTRIB_FD, fds);
3112
3113 if (strides)
3114 dri2_dpy->image->queryImage(dri2_img->dri_image,
3115 __DRI_IMAGE_ATTRIB_STRIDE, strides);
3116
3117 if (offsets) {
3118 int img_offset;
3119 bool ret = dri2_dpy->image->queryImage(dri2_img->dri_image,
3120 __DRI_IMAGE_ATTRIB_OFFSET, &img_offset);
3121 if (ret)
3122 offsets[0] = img_offset;
3123 else
3124 offsets[0] = 0;
3125 }
3126
3127 return EGL_TRUE;
3128 }
3129
3130 #endif
3131
3132 _EGLImage *
dri2_create_image_khr(_EGLDisplay * disp,_EGLContext * ctx,EGLenum target,EGLClientBuffer buffer,const EGLint * attr_list)3133 dri2_create_image_khr(_EGLDisplay *disp, _EGLContext *ctx, EGLenum target,
3134 EGLClientBuffer buffer, const EGLint *attr_list)
3135 {
3136 switch (target) {
3137 case EGL_GL_TEXTURE_2D_KHR:
3138 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_X_KHR:
3139 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_X_KHR:
3140 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Y_KHR:
3141 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Y_KHR:
3142 case EGL_GL_TEXTURE_CUBE_MAP_POSITIVE_Z_KHR:
3143 case EGL_GL_TEXTURE_CUBE_MAP_NEGATIVE_Z_KHR:
3144 case EGL_GL_TEXTURE_3D_KHR:
3145 return dri2_create_image_khr_texture(disp, ctx, target, buffer, attr_list);
3146 case EGL_GL_RENDERBUFFER_KHR:
3147 return dri2_create_image_khr_renderbuffer(disp, ctx, buffer, attr_list);
3148 #ifdef HAVE_LIBDRM
3149 case EGL_DRM_BUFFER_MESA:
3150 return dri2_create_image_mesa_drm_buffer(disp, ctx, buffer, attr_list);
3151 case EGL_LINUX_DMA_BUF_EXT:
3152 return dri2_create_image_dma_buf(disp, ctx, buffer, attr_list);
3153 #endif
3154 #ifdef HAVE_WAYLAND_PLATFORM
3155 case EGL_WAYLAND_BUFFER_WL:
3156 return dri2_create_image_wayland_wl_buffer(disp, ctx, buffer, attr_list);
3157 #endif
3158 default:
3159 _eglError(EGL_BAD_PARAMETER, "dri2_create_image_khr");
3160 return EGL_NO_IMAGE_KHR;
3161 }
3162 }
3163
3164 static EGLBoolean
dri2_destroy_image_khr(_EGLDisplay * disp,_EGLImage * image)3165 dri2_destroy_image_khr(_EGLDisplay *disp, _EGLImage *image)
3166 {
3167 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3168 struct dri2_egl_image *dri2_img = dri2_egl_image(image);
3169
3170 dri2_dpy->image->destroyImage(dri2_img->dri_image);
3171 free(dri2_img);
3172
3173 return EGL_TRUE;
3174 }
3175
3176 #ifdef HAVE_WAYLAND_PLATFORM
3177
3178 static void
dri2_wl_reference_buffer(void * user_data,uint32_t name,int fd,struct wl_drm_buffer * buffer)3179 dri2_wl_reference_buffer(void *user_data, uint32_t name, int fd,
3180 struct wl_drm_buffer *buffer)
3181 {
3182 _EGLDisplay *disp = user_data;
3183 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3184 __DRIimage *img;
3185 int dri_components = 0;
3186
3187 if (fd == -1)
3188 img = dri2_dpy->image->createImageFromNames(dri2_dpy->dri_screen,
3189 buffer->width,
3190 buffer->height,
3191 buffer->format,
3192 (int*)&name, 1,
3193 buffer->stride,
3194 buffer->offset,
3195 NULL);
3196 else
3197 img = dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
3198 buffer->width,
3199 buffer->height,
3200 buffer->format,
3201 &fd, 1,
3202 buffer->stride,
3203 buffer->offset,
3204 NULL);
3205
3206 if (img == NULL)
3207 return;
3208
3209 dri2_dpy->image->queryImage(img, __DRI_IMAGE_ATTRIB_COMPONENTS, &dri_components);
3210
3211 buffer->driver_format = NULL;
3212 for (int i = 0; i < ARRAY_SIZE(wl_drm_components); i++)
3213 if (wl_drm_components[i].dri_components == dri_components)
3214 buffer->driver_format = &wl_drm_components[i];
3215
3216 if (buffer->driver_format == NULL)
3217 dri2_dpy->image->destroyImage(img);
3218 else
3219 buffer->driver_buffer = img;
3220 }
3221
3222 static void
dri2_wl_release_buffer(void * user_data,struct wl_drm_buffer * buffer)3223 dri2_wl_release_buffer(void *user_data, struct wl_drm_buffer *buffer)
3224 {
3225 _EGLDisplay *disp = user_data;
3226 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3227
3228 dri2_dpy->image->destroyImage(buffer->driver_buffer);
3229 }
3230
3231 static EGLBoolean
dri2_bind_wayland_display_wl(_EGLDisplay * disp,struct wl_display * wl_dpy)3232 dri2_bind_wayland_display_wl(_EGLDisplay *disp, struct wl_display *wl_dpy)
3233 {
3234 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3235 const struct wayland_drm_callbacks wl_drm_callbacks = {
3236 .authenticate = (int(*)(void *, uint32_t)) dri2_dpy->vtbl->authenticate,
3237 .reference_buffer = dri2_wl_reference_buffer,
3238 .release_buffer = dri2_wl_release_buffer,
3239 .is_format_supported = dri2_wl_is_format_supported
3240 };
3241 int flags = 0;
3242 uint64_t cap;
3243
3244 if (dri2_dpy->wl_server_drm)
3245 return EGL_FALSE;
3246
3247 if (drmGetCap(dri2_dpy->fd, DRM_CAP_PRIME, &cap) == 0 &&
3248 cap == (DRM_PRIME_CAP_IMPORT | DRM_PRIME_CAP_EXPORT) &&
3249 dri2_dpy->image->base.version >= 7 &&
3250 dri2_dpy->image->createImageFromFds != NULL)
3251 flags |= WAYLAND_DRM_PRIME;
3252
3253 dri2_dpy->wl_server_drm =
3254 wayland_drm_init(wl_dpy, dri2_dpy->device_name,
3255 &wl_drm_callbacks, disp, flags);
3256
3257 if (!dri2_dpy->wl_server_drm)
3258 return EGL_FALSE;
3259
3260 #ifdef HAVE_DRM_PLATFORM
3261 /* We have to share the wl_drm instance with gbm, so gbm can convert
3262 * wl_buffers to gbm bos. */
3263 if (dri2_dpy->gbm_dri)
3264 dri2_dpy->gbm_dri->wl_drm = dri2_dpy->wl_server_drm;
3265 #endif
3266
3267 return EGL_TRUE;
3268 }
3269
3270 static EGLBoolean
dri2_unbind_wayland_display_wl(_EGLDisplay * disp,struct wl_display * wl_dpy)3271 dri2_unbind_wayland_display_wl(_EGLDisplay *disp, struct wl_display *wl_dpy)
3272 {
3273 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3274
3275 if (!dri2_dpy->wl_server_drm)
3276 return EGL_FALSE;
3277
3278 wayland_drm_uninit(dri2_dpy->wl_server_drm);
3279 dri2_dpy->wl_server_drm = NULL;
3280
3281 return EGL_TRUE;
3282 }
3283
3284 static EGLBoolean
dri2_query_wayland_buffer_wl(_EGLDisplay * disp,struct wl_resource * buffer_resource,EGLint attribute,EGLint * value)3285 dri2_query_wayland_buffer_wl(_EGLDisplay *disp, struct wl_resource *buffer_resource,
3286 EGLint attribute, EGLint *value)
3287 {
3288 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3289 struct wl_drm_buffer *buffer;
3290 const struct wl_drm_components_descriptor *format;
3291
3292 buffer = wayland_drm_buffer_get(dri2_dpy->wl_server_drm, buffer_resource);
3293 if (!buffer)
3294 return EGL_FALSE;
3295
3296 format = buffer->driver_format;
3297 switch (attribute) {
3298 case EGL_TEXTURE_FORMAT:
3299 *value = format->components;
3300 return EGL_TRUE;
3301 case EGL_WIDTH:
3302 *value = buffer->width;
3303 return EGL_TRUE;
3304 case EGL_HEIGHT:
3305 *value = buffer->height;
3306 return EGL_TRUE;
3307 }
3308
3309 return EGL_FALSE;
3310 }
3311 #endif
3312
3313 static void
dri2_egl_ref_sync(struct dri2_egl_sync * sync)3314 dri2_egl_ref_sync(struct dri2_egl_sync *sync)
3315 {
3316 p_atomic_inc(&sync->refcount);
3317 }
3318
3319 static void
dri2_egl_unref_sync(struct dri2_egl_display * dri2_dpy,struct dri2_egl_sync * dri2_sync)3320 dri2_egl_unref_sync(struct dri2_egl_display *dri2_dpy,
3321 struct dri2_egl_sync *dri2_sync)
3322 {
3323 if (p_atomic_dec_zero(&dri2_sync->refcount)) {
3324 switch (dri2_sync->base.Type) {
3325 case EGL_SYNC_REUSABLE_KHR:
3326 cnd_destroy(&dri2_sync->cond);
3327 break;
3328 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3329 if (dri2_sync->base.SyncFd != EGL_NO_NATIVE_FENCE_FD_ANDROID)
3330 close(dri2_sync->base.SyncFd);
3331 break;
3332 default:
3333 break;
3334 }
3335
3336 if (dri2_sync->fence)
3337 dri2_dpy->fence->destroy_fence(dri2_dpy->dri_screen, dri2_sync->fence);
3338
3339 free(dri2_sync);
3340 }
3341 }
3342
3343 static _EGLSync *
dri2_create_sync(_EGLDisplay * disp,EGLenum type,const EGLAttrib * attrib_list)3344 dri2_create_sync(_EGLDisplay *disp, EGLenum type, const EGLAttrib *attrib_list)
3345 {
3346 _EGLContext *ctx = _eglGetCurrentContext();
3347 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3348 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3349 struct dri2_egl_sync *dri2_sync;
3350 EGLint ret;
3351 pthread_condattr_t attr;
3352
3353 dri2_sync = calloc(1, sizeof(struct dri2_egl_sync));
3354 if (!dri2_sync) {
3355 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3356 return NULL;
3357 }
3358
3359 if (!_eglInitSync(&dri2_sync->base, disp, type, attrib_list)) {
3360 free(dri2_sync);
3361 return NULL;
3362 }
3363
3364 switch (type) {
3365 case EGL_SYNC_FENCE_KHR:
3366 dri2_sync->fence = dri2_dpy->fence->create_fence(dri2_ctx->dri_context);
3367 if (!dri2_sync->fence) {
3368 /* Why did it fail? DRI doesn't return an error code, so we emit
3369 * a generic EGL error that doesn't communicate user error.
3370 */
3371 _eglError(EGL_BAD_ALLOC, "eglCreateSyncKHR");
3372 free(dri2_sync);
3373 return NULL;
3374 }
3375 break;
3376
3377 case EGL_SYNC_CL_EVENT_KHR:
3378 dri2_sync->fence = dri2_dpy->fence->get_fence_from_cl_event(
3379 dri2_dpy->dri_screen,
3380 dri2_sync->base.CLEvent);
3381 /* this can only happen if the cl_event passed in is invalid. */
3382 if (!dri2_sync->fence) {
3383 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3384 free(dri2_sync);
3385 return NULL;
3386 }
3387
3388 /* the initial status must be "signaled" if the cl_event is signaled */
3389 if (dri2_dpy->fence->client_wait_sync(dri2_ctx->dri_context,
3390 dri2_sync->fence, 0, 0))
3391 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3392 break;
3393
3394 case EGL_SYNC_REUSABLE_KHR:
3395 /* intialize attr */
3396 ret = pthread_condattr_init(&attr);
3397
3398 if (ret) {
3399 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3400 free(dri2_sync);
3401 return NULL;
3402 }
3403
3404 /* change clock attribute to CLOCK_MONOTONIC */
3405 ret = pthread_condattr_setclock(&attr, CLOCK_MONOTONIC);
3406
3407 if (ret) {
3408 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3409 free(dri2_sync);
3410 return NULL;
3411 }
3412
3413 ret = pthread_cond_init(&dri2_sync->cond, &attr);
3414
3415 if (ret) {
3416 _eglError(EGL_BAD_ACCESS, "eglCreateSyncKHR");
3417 free(dri2_sync);
3418 return NULL;
3419 }
3420
3421 /* initial status of reusable sync must be "unsignaled" */
3422 dri2_sync->base.SyncStatus = EGL_UNSIGNALED_KHR;
3423 break;
3424
3425 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3426 if (dri2_dpy->fence->create_fence_fd) {
3427 dri2_sync->fence = dri2_dpy->fence->create_fence_fd(
3428 dri2_ctx->dri_context,
3429 dri2_sync->base.SyncFd);
3430 }
3431 if (!dri2_sync->fence) {
3432 _eglError(EGL_BAD_ATTRIBUTE, "eglCreateSyncKHR");
3433 free(dri2_sync);
3434 return NULL;
3435 }
3436 break;
3437 }
3438
3439 p_atomic_set(&dri2_sync->refcount, 1);
3440 return &dri2_sync->base;
3441 }
3442
3443 static EGLBoolean
dri2_destroy_sync(_EGLDisplay * disp,_EGLSync * sync)3444 dri2_destroy_sync(_EGLDisplay *disp, _EGLSync *sync)
3445 {
3446 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3447 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3448 EGLint ret = EGL_TRUE;
3449 EGLint err;
3450
3451 /* if type of sync is EGL_SYNC_REUSABLE_KHR and it is not signaled yet,
3452 * then unlock all threads possibly blocked by the reusable sync before
3453 * destroying it.
3454 */
3455 if (dri2_sync->base.Type == EGL_SYNC_REUSABLE_KHR &&
3456 dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3457 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3458 /* unblock all threads currently blocked by sync */
3459 err = cnd_broadcast(&dri2_sync->cond);
3460
3461 if (err) {
3462 _eglError(EGL_BAD_ACCESS, "eglDestroySyncKHR");
3463 ret = EGL_FALSE;
3464 }
3465 }
3466
3467 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3468
3469 return ret;
3470 }
3471
3472 static EGLint
dri2_dup_native_fence_fd(_EGLDisplay * disp,_EGLSync * sync)3473 dri2_dup_native_fence_fd(_EGLDisplay *disp, _EGLSync *sync)
3474 {
3475 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3476 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3477
3478 assert(sync->Type == EGL_SYNC_NATIVE_FENCE_ANDROID);
3479
3480 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3481 /* try to retrieve the actual native fence fd.. if rendering is
3482 * not flushed this will just return -1, aka NO_NATIVE_FENCE_FD:
3483 */
3484 sync->SyncFd = dri2_dpy->fence->get_fence_fd(dri2_dpy->dri_screen,
3485 dri2_sync->fence);
3486 }
3487
3488 if (sync->SyncFd == EGL_NO_NATIVE_FENCE_FD_ANDROID) {
3489 /* if native fence fd still not created, return an error: */
3490 _eglError(EGL_BAD_PARAMETER, "eglDupNativeFenceFDANDROID");
3491 return EGL_NO_NATIVE_FENCE_FD_ANDROID;
3492 }
3493
3494 return os_dupfd_cloexec(sync->SyncFd);
3495 }
3496
3497 static void
dri2_set_blob_cache_funcs(_EGLDisplay * disp,EGLSetBlobFuncANDROID set,EGLGetBlobFuncANDROID get)3498 dri2_set_blob_cache_funcs(_EGLDisplay *disp,
3499 EGLSetBlobFuncANDROID set,
3500 EGLGetBlobFuncANDROID get)
3501 {
3502 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3503 dri2_dpy->blob->set_cache_funcs(dri2_dpy->dri_screen,
3504 disp->BlobCacheSet,
3505 disp->BlobCacheGet);
3506 }
3507
3508 static EGLint
dri2_client_wait_sync(_EGLDisplay * disp,_EGLSync * sync,EGLint flags,EGLTime timeout)3509 dri2_client_wait_sync(_EGLDisplay *disp, _EGLSync *sync,
3510 EGLint flags, EGLTime timeout)
3511 {
3512 _EGLContext *ctx = _eglGetCurrentContext();
3513 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3514 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3515 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3516 unsigned wait_flags = 0;
3517
3518 EGLint ret = EGL_CONDITION_SATISFIED_KHR;
3519
3520 /* The EGL_KHR_fence_sync spec states:
3521 *
3522 * "If no context is current for the bound API,
3523 * the EGL_SYNC_FLUSH_COMMANDS_BIT_KHR bit is ignored.
3524 */
3525 if (dri2_ctx && flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)
3526 wait_flags |= __DRI2_FENCE_FLAG_FLUSH_COMMANDS;
3527
3528 /* the sync object should take a reference while waiting */
3529 dri2_egl_ref_sync(dri2_sync);
3530
3531 switch (sync->Type) {
3532 case EGL_SYNC_FENCE_KHR:
3533 case EGL_SYNC_NATIVE_FENCE_ANDROID:
3534 case EGL_SYNC_CL_EVENT_KHR:
3535 if (dri2_dpy->fence->client_wait_sync(dri2_ctx ? dri2_ctx->dri_context : NULL,
3536 dri2_sync->fence, wait_flags,
3537 timeout))
3538 dri2_sync->base.SyncStatus = EGL_SIGNALED_KHR;
3539 else
3540 ret = EGL_TIMEOUT_EXPIRED_KHR;
3541 break;
3542
3543 case EGL_SYNC_REUSABLE_KHR:
3544 if (dri2_ctx && dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR &&
3545 (flags & EGL_SYNC_FLUSH_COMMANDS_BIT_KHR)) {
3546 /* flush context if EGL_SYNC_FLUSH_COMMANDS_BIT_KHR is set */
3547 dri2_gl_flush();
3548 }
3549
3550 /* if timeout is EGL_FOREVER_KHR, it should wait without any timeout.*/
3551 if (timeout == EGL_FOREVER_KHR) {
3552 mtx_lock(&dri2_sync->mutex);
3553 cnd_wait(&dri2_sync->cond, &dri2_sync->mutex);
3554 mtx_unlock(&dri2_sync->mutex);
3555 } else {
3556 /* if reusable sync has not been yet signaled */
3557 if (dri2_sync->base.SyncStatus != EGL_SIGNALED_KHR) {
3558 /* timespecs for cnd_timedwait */
3559 struct timespec current;
3560 struct timespec expire;
3561
3562 /* We override the clock to monotonic when creating the condition
3563 * variable. */
3564 clock_gettime(CLOCK_MONOTONIC, ¤t);
3565
3566 /* calculating when to expire */
3567 expire.tv_nsec = timeout % 1000000000L;
3568 expire.tv_sec = timeout / 1000000000L;
3569
3570 expire.tv_nsec += current.tv_nsec;
3571 expire.tv_sec += current.tv_sec;
3572
3573 /* expire.nsec now is a number between 0 and 1999999998 */
3574 if (expire.tv_nsec > 999999999L) {
3575 expire.tv_sec++;
3576 expire.tv_nsec -= 1000000000L;
3577 }
3578
3579 mtx_lock(&dri2_sync->mutex);
3580 ret = cnd_timedwait(&dri2_sync->cond, &dri2_sync->mutex, &expire);
3581 mtx_unlock(&dri2_sync->mutex);
3582
3583 if (ret == thrd_busy) {
3584 if (dri2_sync->base.SyncStatus == EGL_UNSIGNALED_KHR) {
3585 ret = EGL_TIMEOUT_EXPIRED_KHR;
3586 } else {
3587 _eglError(EGL_BAD_ACCESS, "eglClientWaitSyncKHR");
3588 ret = EGL_FALSE;
3589 }
3590 }
3591 }
3592 }
3593 break;
3594 }
3595 dri2_egl_unref_sync(dri2_dpy, dri2_sync);
3596
3597 return ret;
3598 }
3599
3600 static EGLBoolean
dri2_signal_sync(_EGLDisplay * disp,_EGLSync * sync,EGLenum mode)3601 dri2_signal_sync(_EGLDisplay *disp, _EGLSync *sync, EGLenum mode)
3602 {
3603 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3604 EGLint ret;
3605
3606 if (sync->Type != EGL_SYNC_REUSABLE_KHR)
3607 return _eglError(EGL_BAD_MATCH, "eglSignalSyncKHR");
3608
3609 if (mode != EGL_SIGNALED_KHR && mode != EGL_UNSIGNALED_KHR)
3610 return _eglError(EGL_BAD_ATTRIBUTE, "eglSignalSyncKHR");
3611
3612 dri2_sync->base.SyncStatus = mode;
3613
3614 if (mode == EGL_SIGNALED_KHR) {
3615 ret = cnd_broadcast(&dri2_sync->cond);
3616
3617 /* fail to broadcast */
3618 if (ret)
3619 return _eglError(EGL_BAD_ACCESS, "eglSignalSyncKHR");
3620 }
3621
3622 return EGL_TRUE;
3623 }
3624
3625 static EGLint
dri2_server_wait_sync(_EGLDisplay * disp,_EGLSync * sync)3626 dri2_server_wait_sync(_EGLDisplay *disp, _EGLSync *sync)
3627 {
3628 _EGLContext *ctx = _eglGetCurrentContext();
3629 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3630 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3631 struct dri2_egl_sync *dri2_sync = dri2_egl_sync(sync);
3632
3633 dri2_dpy->fence->server_wait_sync(dri2_ctx->dri_context,
3634 dri2_sync->fence, 0);
3635 return EGL_TRUE;
3636 }
3637
3638 static int
dri2_interop_query_device_info(_EGLDisplay * disp,_EGLContext * ctx,struct mesa_glinterop_device_info * out)3639 dri2_interop_query_device_info(_EGLDisplay *disp, _EGLContext *ctx,
3640 struct mesa_glinterop_device_info *out)
3641 {
3642 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3643 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3644
3645 if (!dri2_dpy->interop)
3646 return MESA_GLINTEROP_UNSUPPORTED;
3647
3648 return dri2_dpy->interop->query_device_info(dri2_ctx->dri_context, out);
3649 }
3650
3651 static int
dri2_interop_export_object(_EGLDisplay * disp,_EGLContext * ctx,struct mesa_glinterop_export_in * in,struct mesa_glinterop_export_out * out)3652 dri2_interop_export_object(_EGLDisplay *disp, _EGLContext *ctx,
3653 struct mesa_glinterop_export_in *in,
3654 struct mesa_glinterop_export_out *out)
3655 {
3656 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
3657 struct dri2_egl_context *dri2_ctx = dri2_egl_context(ctx);
3658
3659 if (!dri2_dpy->interop)
3660 return MESA_GLINTEROP_UNSUPPORTED;
3661
3662 return dri2_dpy->interop->export_object(dri2_ctx->dri_context, in, out);
3663 }
3664
3665 const _EGLDriver _eglDriver = {
3666 .Initialize = dri2_initialize,
3667 .Terminate = dri2_terminate,
3668 .CreateContext = dri2_create_context,
3669 .DestroyContext = dri2_destroy_context,
3670 .MakeCurrent = dri2_make_current,
3671 .CreateWindowSurface = dri2_create_window_surface,
3672 .CreatePixmapSurface = dri2_create_pixmap_surface,
3673 .CreatePbufferSurface = dri2_create_pbuffer_surface,
3674 .DestroySurface = dri2_destroy_surface,
3675 .GetProcAddress = dri2_get_proc_address,
3676 .WaitClient = dri2_wait_client,
3677 .WaitNative = dri2_wait_native,
3678 .BindTexImage = dri2_bind_tex_image,
3679 .ReleaseTexImage = dri2_release_tex_image,
3680 .SwapInterval = dri2_swap_interval,
3681 .SwapBuffers = dri2_swap_buffers,
3682 .SwapBuffersWithDamageEXT = dri2_swap_buffers_with_damage,
3683 .SwapBuffersRegionNOK = dri2_swap_buffers_region,
3684 .SetDamageRegion = dri2_set_damage_region,
3685 .PostSubBufferNV = dri2_post_sub_buffer,
3686 .CopyBuffers = dri2_copy_buffers,
3687 .QueryBufferAge = dri2_query_buffer_age,
3688 .CreateImageKHR = dri2_create_image,
3689 .DestroyImageKHR = dri2_destroy_image_khr,
3690 .CreateWaylandBufferFromImageWL = dri2_create_wayland_buffer_from_image,
3691 .QuerySurface = dri2_query_surface,
3692 .QueryDriverName = dri2_query_driver_name,
3693 .QueryDriverConfig = dri2_query_driver_config,
3694 #ifdef HAVE_LIBDRM
3695 .CreateDRMImageMESA = dri2_create_drm_image_mesa,
3696 .ExportDRMImageMESA = dri2_export_drm_image_mesa,
3697 .ExportDMABUFImageQueryMESA = dri2_export_dma_buf_image_query_mesa,
3698 .ExportDMABUFImageMESA = dri2_export_dma_buf_image_mesa,
3699 .QueryDmaBufFormatsEXT = dri2_query_dma_buf_formats,
3700 .QueryDmaBufModifiersEXT = dri2_query_dma_buf_modifiers,
3701 #endif
3702 #ifdef HAVE_WAYLAND_PLATFORM
3703 .BindWaylandDisplayWL = dri2_bind_wayland_display_wl,
3704 .UnbindWaylandDisplayWL = dri2_unbind_wayland_display_wl,
3705 .QueryWaylandBufferWL = dri2_query_wayland_buffer_wl,
3706 #endif
3707 .GetSyncValuesCHROMIUM = dri2_get_sync_values_chromium,
3708 .CreateSyncKHR = dri2_create_sync,
3709 .ClientWaitSyncKHR = dri2_client_wait_sync,
3710 .SignalSyncKHR = dri2_signal_sync,
3711 .WaitSyncKHR = dri2_server_wait_sync,
3712 .DestroySyncKHR = dri2_destroy_sync,
3713 .GLInteropQueryDeviceInfo = dri2_interop_query_device_info,
3714 .GLInteropExportObject = dri2_interop_export_object,
3715 .DupNativeFenceFDANDROID = dri2_dup_native_fence_fd,
3716 .SetBlobCacheFuncsANDROID = dri2_set_blob_cache_funcs,
3717 };
3718