egl: drop unused _EGLDriver from SwapInterval()
[mesa.git] / src / egl / drivers / dri2 / platform_android.c
1 /*
2 * Mesa 3-D graphics library
3 *
4 * Copyright (C) 2010-2011 Chia-I Wu <olvaffe@gmail.com>
5 * Copyright (C) 2010-2011 LunarG Inc.
6 *
7 * Based on platform_x11, which has
8 *
9 * Copyright © 2011 Intel Corporation
10 *
11 * Permission is hereby granted, free of charge, to any person obtaining a
12 * copy of this software and associated documentation files (the "Software"),
13 * to deal in the Software without restriction, including without limitation
14 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 * and/or sell copies of the Software, and to permit persons to whom the
16 * Software is furnished to do so, subject to the following conditions:
17 *
18 * The above copyright notice and this permission notice shall be included
19 * in all copies or substantial portions of the Software.
20 *
21 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
22 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 * DEALINGS IN THE SOFTWARE.
28 */
29
30 #include <cutils/properties.h>
31 #include <errno.h>
32 #include <dirent.h>
33 #include <dlfcn.h>
34 #include <fcntl.h>
35 #include <xf86drm.h>
36 #include <stdbool.h>
37 #include <stdio.h>
38 #include <sync/sync.h>
39 #include <sys/types.h>
40 #include <drm-uapi/drm_fourcc.h>
41
42 #include "util/os_file.h"
43
44 #include "loader.h"
45 #include "egl_dri2.h"
46
47 #ifdef HAVE_DRM_GRALLOC
48 #include <gralloc_drm_handle.h>
49 #include "gralloc_drm.h"
50 #endif /* HAVE_DRM_GRALLOC */
51
52 #define ALIGN(val, align) (((val) + (align) - 1) & ~((align) - 1))
53
54 enum chroma_order {
55 YCbCr,
56 YCrCb,
57 };
58
59 struct droid_yuv_format {
60 /* Lookup keys */
61 int native; /* HAL_PIXEL_FORMAT_ */
62 enum chroma_order chroma_order; /* chroma order is {Cb, Cr} or {Cr, Cb} */
63 int chroma_step; /* Distance in bytes between subsequent chroma pixels. */
64
65 /* Result */
66 int fourcc; /* DRM_FORMAT_ */
67 };
68
69 /* The following table is used to look up a DRI image FourCC based
70 * on native format and information contained in android_ycbcr struct. */
71 static const struct droid_yuv_format droid_yuv_formats[] = {
72 /* Native format, YCrCb, Chroma step, DRI image FourCC */
73 { HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 2, DRM_FORMAT_NV12 },
74 { HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 1, DRM_FORMAT_YUV420 },
75 { HAL_PIXEL_FORMAT_YCbCr_420_888, YCrCb, 1, DRM_FORMAT_YVU420 },
76 { HAL_PIXEL_FORMAT_YV12, YCrCb, 1, DRM_FORMAT_YVU420 },
77 /* HACK: See droid_create_image_from_prime_fds() and
78 * https://issuetracker.google.com/32077885. */
79 { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 2, DRM_FORMAT_NV12 },
80 { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 1, DRM_FORMAT_YUV420 },
81 { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_YVU420 },
82 { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_AYUV },
83 { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_XYUV8888 },
84 };
85
86 static int
87 get_fourcc_yuv(int native, enum chroma_order chroma_order, int chroma_step)
88 {
89 for (int i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
90 if (droid_yuv_formats[i].native == native &&
91 droid_yuv_formats[i].chroma_order == chroma_order &&
92 droid_yuv_formats[i].chroma_step == chroma_step)
93 return droid_yuv_formats[i].fourcc;
94
95 return -1;
96 }
97
98 static bool
99 is_yuv(int native)
100 {
101 for (int i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
102 if (droid_yuv_formats[i].native == native)
103 return true;
104
105 return false;
106 }
107
108 static int
109 get_format_bpp(int native)
110 {
111 int bpp;
112
113 switch (native) {
114 case HAL_PIXEL_FORMAT_RGBA_FP16:
115 bpp = 8;
116 break;
117 case HAL_PIXEL_FORMAT_RGBA_8888:
118 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
119 /*
120 * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack.
121 * TODO: Remove this once https://issuetracker.google.com/32077885 is fixed.
122 */
123 case HAL_PIXEL_FORMAT_RGBX_8888:
124 case HAL_PIXEL_FORMAT_BGRA_8888:
125 case HAL_PIXEL_FORMAT_RGBA_1010102:
126 bpp = 4;
127 break;
128 case HAL_PIXEL_FORMAT_RGB_565:
129 bpp = 2;
130 break;
131 default:
132 bpp = 0;
133 break;
134 }
135
136 return bpp;
137 }
138
139 /* createImageFromFds requires fourcc format */
140 static int get_fourcc(int native)
141 {
142 switch (native) {
143 case HAL_PIXEL_FORMAT_RGB_565: return DRM_FORMAT_RGB565;
144 case HAL_PIXEL_FORMAT_BGRA_8888: return DRM_FORMAT_ARGB8888;
145 case HAL_PIXEL_FORMAT_RGBA_8888: return DRM_FORMAT_ABGR8888;
146 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
147 /*
148 * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack.
149 * TODO: Remove this once https://issuetracker.google.com/32077885 is fixed.
150 */
151 case HAL_PIXEL_FORMAT_RGBX_8888: return DRM_FORMAT_XBGR8888;
152 case HAL_PIXEL_FORMAT_RGBA_FP16: return DRM_FORMAT_ABGR16161616F;
153 case HAL_PIXEL_FORMAT_RGBA_1010102: return DRM_FORMAT_ABGR2101010;
154 default:
155 _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native);
156 }
157 return -1;
158 }
159
160 /* returns # of fds, and by reference the actual fds */
161 static unsigned
162 get_native_buffer_fds(struct ANativeWindowBuffer *buf, int fds[3])
163 {
164 native_handle_t *handle = (native_handle_t *)buf->handle;
165
166 if (!handle)
167 return 0;
168
169 /*
170 * Various gralloc implementations exist, but the dma-buf fd tends
171 * to be first. Access it directly to avoid a dependency on specific
172 * gralloc versions.
173 */
174 for (int i = 0; i < handle->numFds; i++)
175 fds[i] = handle->data[i];
176
177 return handle->numFds;
178 }
179
180 #ifdef HAVE_DRM_GRALLOC
181 static int
182 get_native_buffer_name(struct ANativeWindowBuffer *buf)
183 {
184 return gralloc_drm_get_gem_handle(buf->handle);
185 }
186 #endif /* HAVE_DRM_GRALLOC */
187
188 static EGLBoolean
189 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
190 {
191 int fence_fd;
192
193 if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
194 &fence_fd))
195 return EGL_FALSE;
196
197 /* If access to the buffer is controlled by a sync fence, then block on the
198 * fence.
199 *
200 * It may be more performant to postpone blocking until there is an
201 * immediate need to write to the buffer. But doing so would require adding
202 * hooks to the DRI2 loader.
203 *
204 * From the ANativeWindow::dequeueBuffer documentation:
205 *
206 * The libsync fence file descriptor returned in the int pointed to by
207 * the fenceFd argument will refer to the fence that must signal
208 * before the dequeued buffer may be written to. A value of -1
209 * indicates that the caller may access the buffer immediately without
210 * waiting on a fence. If a valid file descriptor is returned (i.e.
211 * any value except -1) then the caller is responsible for closing the
212 * file descriptor.
213 */
214 if (fence_fd >= 0) {
215 /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
216 *
217 * Waits indefinitely if timeout < 0.
218 */
219 int timeout = -1;
220 sync_wait(fence_fd, timeout);
221 close(fence_fd);
222 }
223
224 /* Record all the buffers created by ANativeWindow and update back buffer
225 * for updating buffer's age in swap_buffers.
226 */
227 EGLBoolean updated = EGL_FALSE;
228 for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
229 if (!dri2_surf->color_buffers[i].buffer) {
230 dri2_surf->color_buffers[i].buffer = dri2_surf->buffer;
231 }
232 if (dri2_surf->color_buffers[i].buffer == dri2_surf->buffer) {
233 dri2_surf->back = &dri2_surf->color_buffers[i];
234 updated = EGL_TRUE;
235 break;
236 }
237 }
238
239 if (!updated) {
240 /* In case of all the buffers were recreated by ANativeWindow, reset
241 * the color_buffers
242 */
243 for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
244 dri2_surf->color_buffers[i].buffer = NULL;
245 dri2_surf->color_buffers[i].age = 0;
246 }
247 dri2_surf->color_buffers[0].buffer = dri2_surf->buffer;
248 dri2_surf->back = &dri2_surf->color_buffers[0];
249 }
250
251 return EGL_TRUE;
252 }
253
254 static EGLBoolean
255 droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
256 {
257 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
258
259 /* To avoid blocking other EGL calls, release the display mutex before
260 * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon
261 * return.
262 */
263 mtx_unlock(&disp->Mutex);
264
265 /* Queue the buffer with stored out fence fd. The ANativeWindow or buffer
266 * consumer may choose to wait for the fence to signal before accessing
267 * it. If fence fd value is -1, buffer can be accessed by consumer
268 * immediately. Consumer or application shouldn't rely on timestamp
269 * associated with fence if the fence fd is -1.
270 *
271 * Ownership of fd is transferred to consumer after queueBuffer and the
272 * consumer is responsible for closing it. Caller must not use the fd
273 * after passing it to queueBuffer.
274 */
275 int fence_fd = dri2_surf->out_fence_fd;
276 dri2_surf->out_fence_fd = -1;
277 dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
278 fence_fd);
279
280 dri2_surf->buffer = NULL;
281 dri2_surf->back = NULL;
282
283 mtx_lock(&disp->Mutex);
284
285 if (dri2_surf->dri_image_back) {
286 dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
287 dri2_surf->dri_image_back = NULL;
288 }
289
290 return EGL_TRUE;
291 }
292
293 static void
294 droid_window_cancel_buffer(struct dri2_egl_surface *dri2_surf)
295 {
296 int ret;
297 int fence_fd = dri2_surf->out_fence_fd;
298
299 dri2_surf->out_fence_fd = -1;
300 ret = dri2_surf->window->cancelBuffer(dri2_surf->window,
301 dri2_surf->buffer, fence_fd);
302 dri2_surf->buffer = NULL;
303 if (ret < 0) {
304 _eglLog(_EGL_WARNING, "ANativeWindow::cancelBuffer failed");
305 dri2_surf->base.Lost = EGL_TRUE;
306 }
307 }
308
309 static bool
310 droid_set_shared_buffer_mode(_EGLDisplay *disp, _EGLSurface *surf, bool mode)
311 {
312 #if ANDROID_API_LEVEL >= 24
313 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
314 struct ANativeWindow *window = dri2_surf->window;
315
316 assert(surf->Type == EGL_WINDOW_BIT);
317 assert(_eglSurfaceHasMutableRenderBuffer(&dri2_surf->base));
318
319 _eglLog(_EGL_DEBUG, "%s: mode=%d", __func__, mode);
320
321 if (native_window_set_shared_buffer_mode(window, mode)) {
322 _eglLog(_EGL_WARNING, "failed native_window_set_shared_buffer_mode"
323 "(window=%p, mode=%d)", window, mode);
324 return false;
325 }
326
327 return true;
328 #else
329 _eglLog(_EGL_FATAL, "%s:%d: internal error: unreachable", __FILE__, __LINE__);
330 return false;
331 #endif
332 }
333
334 static _EGLSurface *
335 droid_create_surface(_EGLDisplay *disp, EGLint type, _EGLConfig *conf,
336 void *native_window, const EGLint *attrib_list)
337 {
338 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
339 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
340 struct dri2_egl_surface *dri2_surf;
341 struct ANativeWindow *window = native_window;
342 const __DRIconfig *config;
343
344 dri2_surf = calloc(1, sizeof *dri2_surf);
345 if (!dri2_surf) {
346 _eglError(EGL_BAD_ALLOC, "droid_create_surface");
347 return NULL;
348 }
349
350 if (!dri2_init_surface(&dri2_surf->base, disp, type, conf, attrib_list,
351 true, native_window))
352 goto cleanup_surface;
353
354 if (type == EGL_WINDOW_BIT) {
355 int format;
356 int buffer_count;
357 int min_buffer_count, max_buffer_count;
358
359 /* Prefer triple buffering for performance reasons. */
360 const int preferred_buffer_count = 3;
361
362 if (window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
363 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
364 goto cleanup_surface;
365 }
366 if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
367 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
368 goto cleanup_surface;
369 }
370
371 /* Query ANativeWindow for MIN_UNDEQUEUED_BUFFER, minimum amount
372 * of undequeued buffers.
373 */
374 if (window->query(window, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
375 &min_buffer_count)) {
376 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
377 goto cleanup_surface;
378 }
379
380 /* Query for maximum buffer count, application can set this
381 * to limit the total amount of buffers.
382 */
383 if (window->query(window, NATIVE_WINDOW_MAX_BUFFER_COUNT,
384 &max_buffer_count)) {
385 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
386 goto cleanup_surface;
387 }
388
389 /* Clamp preferred between minimum (min undequeued + 1 dequeued)
390 * and maximum.
391 */
392 buffer_count = CLAMP(preferred_buffer_count, min_buffer_count + 1,
393 max_buffer_count);
394
395 if (native_window_set_buffer_count(window, buffer_count)) {
396 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
397 goto cleanup_surface;
398 }
399 dri2_surf->color_buffers = calloc(buffer_count,
400 sizeof(*dri2_surf->color_buffers));
401 if (!dri2_surf->color_buffers) {
402 _eglError(EGL_BAD_ALLOC, "droid_create_surface");
403 goto cleanup_surface;
404 }
405 dri2_surf->color_buffers_count = buffer_count;
406
407 if (format != dri2_conf->base.NativeVisualID) {
408 _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
409 format, dri2_conf->base.NativeVisualID);
410 }
411
412 window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
413 window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
414
415 uint32_t usage = strcmp(dri2_dpy->driver_name, "kms_swrast") == 0
416 ? GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN
417 : GRALLOC_USAGE_HW_RENDER;
418 native_window_set_usage(window, usage);
419 }
420
421 config = dri2_get_dri_config(dri2_conf, type,
422 dri2_surf->base.GLColorspace);
423 if (!config) {
424 _eglError(EGL_BAD_MATCH, "Unsupported surfacetype/colorspace configuration");
425 goto cleanup_surface;
426 }
427
428 if (!dri2_create_drawable(dri2_dpy, config, dri2_surf, dri2_surf))
429 goto cleanup_surface;
430
431 if (window) {
432 window->common.incRef(&window->common);
433 dri2_surf->window = window;
434 }
435
436 return &dri2_surf->base;
437
438 cleanup_surface:
439 if (dri2_surf->color_buffers_count)
440 free(dri2_surf->color_buffers);
441 free(dri2_surf);
442
443 return NULL;
444 }
445
446 static _EGLSurface *
447 droid_create_window_surface(_EGLDisplay *disp, _EGLConfig *conf,
448 void *native_window, const EGLint *attrib_list)
449 {
450 return droid_create_surface(disp, EGL_WINDOW_BIT, conf,
451 native_window, attrib_list);
452 }
453
454 static _EGLSurface *
455 droid_create_pbuffer_surface(_EGLDisplay *disp, _EGLConfig *conf,
456 const EGLint *attrib_list)
457 {
458 return droid_create_surface(disp, EGL_PBUFFER_BIT, conf,
459 NULL, attrib_list);
460 }
461
462 static EGLBoolean
463 droid_destroy_surface(_EGLDisplay *disp, _EGLSurface *surf)
464 {
465 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
466 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
467
468 dri2_egl_surface_free_local_buffers(dri2_surf);
469
470 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
471 if (dri2_surf->buffer)
472 droid_window_cancel_buffer(dri2_surf);
473
474 dri2_surf->window->common.decRef(&dri2_surf->window->common);
475 }
476
477 if (dri2_surf->dri_image_back) {
478 _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_back", __func__, __LINE__);
479 dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
480 dri2_surf->dri_image_back = NULL;
481 }
482
483 if (dri2_surf->dri_image_front) {
484 _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_front", __func__, __LINE__);
485 dri2_dpy->image->destroyImage(dri2_surf->dri_image_front);
486 dri2_surf->dri_image_front = NULL;
487 }
488
489 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
490
491 dri2_fini_surface(surf);
492 free(dri2_surf->color_buffers);
493 free(dri2_surf);
494
495 return EGL_TRUE;
496 }
497
498 static EGLBoolean
499 droid_swap_interval(_EGLDisplay *disp, _EGLSurface *surf, EGLint interval)
500 {
501 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
502 struct ANativeWindow *window = dri2_surf->window;
503
504 if (window->setSwapInterval(window, interval))
505 return EGL_FALSE;
506
507 surf->SwapInterval = interval;
508 return EGL_TRUE;
509 }
510
511 static int
512 update_buffers(struct dri2_egl_surface *dri2_surf)
513 {
514 if (dri2_surf->base.Lost)
515 return -1;
516
517 if (dri2_surf->base.Type != EGL_WINDOW_BIT)
518 return 0;
519
520 /* try to dequeue the next back buffer */
521 if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
522 _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
523 dri2_surf->base.Lost = EGL_TRUE;
524 return -1;
525 }
526
527 /* free outdated buffers and update the surface size */
528 if (dri2_surf->base.Width != dri2_surf->buffer->width ||
529 dri2_surf->base.Height != dri2_surf->buffer->height) {
530 dri2_egl_surface_free_local_buffers(dri2_surf);
531 dri2_surf->base.Width = dri2_surf->buffer->width;
532 dri2_surf->base.Height = dri2_surf->buffer->height;
533 }
534
535 return 0;
536 }
537
538 static int
539 get_front_bo(struct dri2_egl_surface *dri2_surf, unsigned int format)
540 {
541 struct dri2_egl_display *dri2_dpy =
542 dri2_egl_display(dri2_surf->base.Resource.Display);
543
544 if (dri2_surf->dri_image_front)
545 return 0;
546
547 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
548 /* According current EGL spec, front buffer rendering
549 * for window surface is not supported now.
550 * and mesa doesn't have the implementation of this case.
551 * Add warning message, but not treat it as error.
552 */
553 _eglLog(_EGL_DEBUG, "DRI driver requested unsupported front buffer for window surface");
554 } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
555 dri2_surf->dri_image_front =
556 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
557 dri2_surf->base.Width,
558 dri2_surf->base.Height,
559 format,
560 0,
561 dri2_surf);
562 if (!dri2_surf->dri_image_front) {
563 _eglLog(_EGL_WARNING, "dri2_image_front allocation failed");
564 return -1;
565 }
566 }
567
568 return 0;
569 }
570
571 static int
572 get_back_bo(struct dri2_egl_surface *dri2_surf)
573 {
574 struct dri2_egl_display *dri2_dpy =
575 dri2_egl_display(dri2_surf->base.Resource.Display);
576 int fourcc, pitch;
577 int offset = 0, fds[3];
578 unsigned num_fds;
579
580 if (dri2_surf->dri_image_back)
581 return 0;
582
583 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
584 if (!dri2_surf->buffer) {
585 _eglLog(_EGL_WARNING, "Could not get native buffer");
586 return -1;
587 }
588
589 num_fds = get_native_buffer_fds(dri2_surf->buffer, fds);
590 if (num_fds == 0) {
591 _eglLog(_EGL_WARNING, "Could not get native buffer FD");
592 return -1;
593 }
594
595 fourcc = get_fourcc(dri2_surf->buffer->format);
596
597 pitch = dri2_surf->buffer->stride *
598 get_format_bpp(dri2_surf->buffer->format);
599
600 if (fourcc == -1 || pitch == 0) {
601 _eglLog(_EGL_WARNING, "Invalid buffer fourcc(%x) or pitch(%d)",
602 fourcc, pitch);
603 return -1;
604 }
605
606 dri2_surf->dri_image_back =
607 dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
608 dri2_surf->base.Width,
609 dri2_surf->base.Height,
610 fourcc,
611 fds,
612 num_fds,
613 &pitch,
614 &offset,
615 dri2_surf);
616 if (!dri2_surf->dri_image_back) {
617 _eglLog(_EGL_WARNING, "failed to create DRI image from FD");
618 return -1;
619 }
620 } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
621 /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically,
622 * the spec states that they have a back buffer but no front buffer, in
623 * contrast to pixmaps, which have a front buffer but no back buffer.
624 *
625 * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate
626 * from the spec, following the precedent of Mesa's EGL X11 platform. The
627 * X11 platform correctly assigns pbuffers to single-buffered configs, but
628 * assigns the pbuffer a front buffer instead of a back buffer.
629 *
630 * Pbuffers in the X11 platform mostly work today, so let's just copy its
631 * behavior instead of trying to fix (and hence potentially breaking) the
632 * world.
633 */
634 _eglLog(_EGL_DEBUG, "DRI driver requested unsupported back buffer for pbuffer surface");
635 }
636
637 return 0;
638 }
639
640 /* Some drivers will pass multiple bits in buffer_mask.
641 * For such case, will go through all the bits, and
642 * will not return error when unsupported buffer is requested, only
643 * return error when the allocation for supported buffer failed.
644 */
645 static int
646 droid_image_get_buffers(__DRIdrawable *driDrawable,
647 unsigned int format,
648 uint32_t *stamp,
649 void *loaderPrivate,
650 uint32_t buffer_mask,
651 struct __DRIimageList *images)
652 {
653 struct dri2_egl_surface *dri2_surf = loaderPrivate;
654
655 images->image_mask = 0;
656 images->front = NULL;
657 images->back = NULL;
658
659 if (update_buffers(dri2_surf) < 0)
660 return 0;
661
662 if (_eglSurfaceInSharedBufferMode(&dri2_surf->base)) {
663 if (get_back_bo(dri2_surf) < 0)
664 return 0;
665
666 /* We have dri_image_back because this is a window surface and
667 * get_back_bo() succeeded.
668 */
669 assert(dri2_surf->dri_image_back);
670 images->back = dri2_surf->dri_image_back;
671 images->image_mask |= __DRI_IMAGE_BUFFER_SHARED;
672
673 /* There exists no accompanying back nor front buffer. */
674 return 1;
675 }
676
677 if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
678 if (get_front_bo(dri2_surf, format) < 0)
679 return 0;
680
681 if (dri2_surf->dri_image_front) {
682 images->front = dri2_surf->dri_image_front;
683 images->image_mask |= __DRI_IMAGE_BUFFER_FRONT;
684 }
685 }
686
687 if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
688 if (get_back_bo(dri2_surf) < 0)
689 return 0;
690
691 if (dri2_surf->dri_image_back) {
692 images->back = dri2_surf->dri_image_back;
693 images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
694 }
695 }
696
697 return 1;
698 }
699
700 static EGLint
701 droid_query_buffer_age(const _EGLDriver *drv,
702 _EGLDisplay *disp, _EGLSurface *surface)
703 {
704 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
705
706 if (update_buffers(dri2_surf) < 0) {
707 _eglError(EGL_BAD_ALLOC, "droid_query_buffer_age");
708 return -1;
709 }
710
711 return dri2_surf->back ? dri2_surf->back->age : 0;
712 }
713
714 static EGLBoolean
715 droid_swap_buffers(const _EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
716 {
717 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
718 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
719 const bool has_mutable_rb = _eglSurfaceHasMutableRenderBuffer(draw);
720
721 /* From the EGL_KHR_mutable_render_buffer spec (v12):
722 *
723 * If surface is a single-buffered window, pixmap, or pbuffer surface
724 * for which there is no pending change to the EGL_RENDER_BUFFER
725 * attribute, eglSwapBuffers has no effect.
726 */
727 if (has_mutable_rb &&
728 draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER &&
729 draw->ActiveRenderBuffer == EGL_SINGLE_BUFFER) {
730 _eglLog(_EGL_DEBUG, "%s: remain in shared buffer mode", __func__);
731 return EGL_TRUE;
732 }
733
734 for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
735 if (dri2_surf->color_buffers[i].age > 0)
736 dri2_surf->color_buffers[i].age++;
737 }
738
739 /* "XXX: we don't use get_back_bo() since it causes regressions in
740 * several dEQP tests.
741 */
742 if (dri2_surf->back)
743 dri2_surf->back->age = 1;
744
745 dri2_flush_drawable_for_swapbuffers(disp, draw);
746
747 /* dri2_surf->buffer can be null even when no error has occured. For
748 * example, if the user has called no GL rendering commands since the
749 * previous eglSwapBuffers, then the driver may have not triggered
750 * a callback to ANativeWindow::dequeueBuffer, in which case
751 * dri2_surf->buffer remains null.
752 */
753 if (dri2_surf->buffer)
754 droid_window_enqueue_buffer(disp, dri2_surf);
755
756 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
757
758 /* Update the shared buffer mode */
759 if (has_mutable_rb &&
760 draw->ActiveRenderBuffer != draw->RequestedRenderBuffer) {
761 bool mode = (draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER);
762 _eglLog(_EGL_DEBUG, "%s: change to shared buffer mode %d",
763 __func__, mode);
764
765 if (!droid_set_shared_buffer_mode(disp, draw, mode))
766 return EGL_FALSE;
767 draw->ActiveRenderBuffer = draw->RequestedRenderBuffer;
768 }
769
770 return EGL_TRUE;
771 }
772
773 static _EGLImage *
774 droid_create_image_from_prime_fds_yuv(_EGLDisplay *disp, _EGLContext *ctx,
775 struct ANativeWindowBuffer *buf,
776 int num_fds, int fds[3])
777 {
778 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
779 struct android_ycbcr ycbcr;
780 size_t offsets[3];
781 size_t pitches[3];
782 enum chroma_order chroma_order;
783 int fourcc;
784 int ret;
785
786 if (!dri2_dpy->gralloc->lock_ycbcr) {
787 _eglLog(_EGL_WARNING, "Gralloc does not support lock_ycbcr");
788 return NULL;
789 }
790
791 memset(&ycbcr, 0, sizeof(ycbcr));
792 ret = dri2_dpy->gralloc->lock_ycbcr(dri2_dpy->gralloc, buf->handle,
793 0, 0, 0, 0, 0, &ycbcr);
794 if (ret) {
795 /* HACK: See droid_create_image_from_prime_fds() and
796 * https://issuetracker.google.com/32077885.*/
797 if (buf->format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED)
798 return NULL;
799
800 _eglLog(_EGL_WARNING, "gralloc->lock_ycbcr failed: %d", ret);
801 return NULL;
802 }
803 dri2_dpy->gralloc->unlock(dri2_dpy->gralloc, buf->handle);
804
805 /* When lock_ycbcr's usage argument contains no SW_READ/WRITE flags
806 * it will return the .y/.cb/.cr pointers based on a NULL pointer,
807 * so they can be interpreted as offsets. */
808 offsets[0] = (size_t)ycbcr.y;
809 /* We assume here that all the planes are located in one DMA-buf. */
810 if ((size_t)ycbcr.cr < (size_t)ycbcr.cb) {
811 chroma_order = YCrCb;
812 offsets[1] = (size_t)ycbcr.cr;
813 offsets[2] = (size_t)ycbcr.cb;
814 } else {
815 chroma_order = YCbCr;
816 offsets[1] = (size_t)ycbcr.cb;
817 offsets[2] = (size_t)ycbcr.cr;
818 }
819
820 /* .ystride is the line length (in bytes) of the Y plane,
821 * .cstride is the line length (in bytes) of any of the remaining
822 * Cb/Cr/CbCr planes, assumed to be the same for Cb and Cr for fully
823 * planar formats. */
824 pitches[0] = ycbcr.ystride;
825 pitches[1] = pitches[2] = ycbcr.cstride;
826
827 /* .chroma_step is the byte distance between the same chroma channel
828 * values of subsequent pixels, assumed to be the same for Cb and Cr. */
829 fourcc = get_fourcc_yuv(buf->format, chroma_order, ycbcr.chroma_step);
830 if (fourcc == -1) {
831 _eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, chroma_order = %s, chroma_step = %d",
832 buf->format, chroma_order == YCbCr ? "YCbCr" : "YCrCb", ycbcr.chroma_step);
833 return NULL;
834 }
835
836 /*
837 * Since this is EGL_NATIVE_BUFFER_ANDROID don't assume that
838 * the single-fd case cannot happen. So handle eithe single
839 * fd or fd-per-plane case:
840 */
841 if (num_fds == 1) {
842 fds[2] = fds[1] = fds[0];
843 } else {
844 int expected_planes = (ycbcr.chroma_step == 2) ? 2 : 3;
845 assert(num_fds == expected_planes);
846 }
847
848 if (ycbcr.chroma_step == 2) {
849 /* Semi-planar Y + CbCr or Y + CrCb format. */
850 const EGLint attr_list_2plane[] = {
851 EGL_WIDTH, buf->width,
852 EGL_HEIGHT, buf->height,
853 EGL_LINUX_DRM_FOURCC_EXT, fourcc,
854 EGL_DMA_BUF_PLANE0_FD_EXT, fds[0],
855 EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
856 EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
857 EGL_DMA_BUF_PLANE1_FD_EXT, fds[1],
858 EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
859 EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
860 EGL_NONE, 0
861 };
862
863 return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_2plane);
864 } else {
865 /* Fully planar Y + Cb + Cr or Y + Cr + Cb format. */
866 const EGLint attr_list_3plane[] = {
867 EGL_WIDTH, buf->width,
868 EGL_HEIGHT, buf->height,
869 EGL_LINUX_DRM_FOURCC_EXT, fourcc,
870 EGL_DMA_BUF_PLANE0_FD_EXT, fds[0],
871 EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
872 EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
873 EGL_DMA_BUF_PLANE1_FD_EXT, fds[1],
874 EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
875 EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
876 EGL_DMA_BUF_PLANE2_FD_EXT, fds[2],
877 EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
878 EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
879 EGL_NONE, 0
880 };
881
882 return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_3plane);
883 }
884 }
885
886 static _EGLImage *
887 droid_create_image_from_prime_fds(_EGLDisplay *disp, _EGLContext *ctx,
888 struct ANativeWindowBuffer *buf, int num_fds, int fds[3])
889 {
890 unsigned int pitch;
891
892 if (is_yuv(buf->format)) {
893 _EGLImage *image;
894
895 image = droid_create_image_from_prime_fds_yuv(disp, ctx, buf, num_fds, fds);
896 /*
897 * HACK: https://issuetracker.google.com/32077885
898 * There is no API available to properly query the IMPLEMENTATION_DEFINED
899 * format. As a workaround we rely here on gralloc allocating either
900 * an arbitrary YCbCr 4:2:0 or RGBX_8888, with the latter being recognized
901 * by lock_ycbcr failing.
902 */
903 if (image || buf->format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED)
904 return image;
905 }
906
907 /*
908 * Non-YUV formats could *also* have multiple planes, such as ancillary
909 * color compression state buffer, but the rest of the code isn't ready
910 * yet to deal with modifiers:
911 */
912 assert(num_fds == 1);
913
914 const int fourcc = get_fourcc(buf->format);
915 if (fourcc == -1) {
916 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
917 return NULL;
918 }
919
920 pitch = buf->stride * get_format_bpp(buf->format);
921 if (pitch == 0) {
922 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
923 return NULL;
924 }
925
926 const EGLint attr_list[] = {
927 EGL_WIDTH, buf->width,
928 EGL_HEIGHT, buf->height,
929 EGL_LINUX_DRM_FOURCC_EXT, fourcc,
930 EGL_DMA_BUF_PLANE0_FD_EXT, fds[0],
931 EGL_DMA_BUF_PLANE0_PITCH_EXT, pitch,
932 EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
933 EGL_NONE, 0
934 };
935
936 return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
937 }
938
939 #ifdef HAVE_DRM_GRALLOC
940 static int get_format(int format)
941 {
942 switch (format) {
943 case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
944 case HAL_PIXEL_FORMAT_RGB_565: return __DRI_IMAGE_FORMAT_RGB565;
945 case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
946 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
947 /*
948 * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack.
949 * TODO: Revert this once https://issuetracker.google.com/32077885 is fixed.
950 */
951 case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
952 case HAL_PIXEL_FORMAT_RGBA_FP16: return __DRI_IMAGE_FORMAT_ABGR16161616F;
953 case HAL_PIXEL_FORMAT_RGBA_1010102: return __DRI_IMAGE_FORMAT_ABGR2101010;
954 default:
955 _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
956 }
957 return -1;
958 }
959
960 static _EGLImage *
961 droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
962 struct ANativeWindowBuffer *buf)
963 {
964 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
965 struct dri2_egl_image *dri2_img;
966 int name;
967 int format;
968
969 name = get_native_buffer_name(buf);
970 if (!name) {
971 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
972 return NULL;
973 }
974
975 format = get_format(buf->format);
976 if (format == -1)
977 return NULL;
978
979 dri2_img = calloc(1, sizeof(*dri2_img));
980 if (!dri2_img) {
981 _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
982 return NULL;
983 }
984
985 _eglInitImage(&dri2_img->base, disp);
986
987 dri2_img->dri_image =
988 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
989 buf->width,
990 buf->height,
991 format,
992 name,
993 buf->stride,
994 dri2_img);
995 if (!dri2_img->dri_image) {
996 free(dri2_img);
997 _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
998 return NULL;
999 }
1000
1001 return &dri2_img->base;
1002 }
1003 #endif /* HAVE_DRM_GRALLOC */
1004
1005 static EGLBoolean
1006 droid_query_surface(_EGLDisplay *disp, _EGLSurface *surf,
1007 EGLint attribute, EGLint *value)
1008 {
1009 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
1010 switch (attribute) {
1011 case EGL_WIDTH:
1012 if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
1013 dri2_surf->window->query(dri2_surf->window,
1014 NATIVE_WINDOW_DEFAULT_WIDTH, value);
1015 return EGL_TRUE;
1016 }
1017 break;
1018 case EGL_HEIGHT:
1019 if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
1020 dri2_surf->window->query(dri2_surf->window,
1021 NATIVE_WINDOW_DEFAULT_HEIGHT, value);
1022 return EGL_TRUE;
1023 }
1024 break;
1025 default:
1026 break;
1027 }
1028 return _eglQuerySurface(disp, surf, attribute, value);
1029 }
1030
1031 static _EGLImage *
1032 dri2_create_image_android_native_buffer(_EGLDisplay *disp,
1033 _EGLContext *ctx,
1034 struct ANativeWindowBuffer *buf)
1035 {
1036 int fds[3];
1037 unsigned num_fds;
1038
1039 if (ctx != NULL) {
1040 /* From the EGL_ANDROID_image_native_buffer spec:
1041 *
1042 * * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
1043 * EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
1044 */
1045 _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
1046 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
1047 "EGL_NO_CONTEXT");
1048 return NULL;
1049 }
1050
1051 if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
1052 buf->common.version != sizeof(*buf)) {
1053 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
1054 return NULL;
1055 }
1056
1057 num_fds = get_native_buffer_fds(buf, fds);
1058 if (num_fds > 0)
1059 return droid_create_image_from_prime_fds(disp, ctx, buf, num_fds, fds);
1060
1061 #ifdef HAVE_DRM_GRALLOC
1062 return droid_create_image_from_name(disp, ctx, buf);
1063 #else
1064 return NULL;
1065 #endif
1066 }
1067
1068 static _EGLImage *
1069 droid_create_image_khr(const _EGLDriver *drv, _EGLDisplay *disp,
1070 _EGLContext *ctx, EGLenum target,
1071 EGLClientBuffer buffer, const EGLint *attr_list)
1072 {
1073 switch (target) {
1074 case EGL_NATIVE_BUFFER_ANDROID:
1075 return dri2_create_image_android_native_buffer(disp, ctx,
1076 (struct ANativeWindowBuffer *) buffer);
1077 default:
1078 return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
1079 }
1080 }
1081
1082 static void
1083 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
1084 {
1085 }
1086
1087 #ifdef HAVE_DRM_GRALLOC
1088 static int
1089 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
1090 unsigned int *attachments, int count)
1091 {
1092 int num_buffers = 0;
1093
1094 /* fill dri2_surf->buffers */
1095 for (int i = 0; i < count * 2; i += 2) {
1096 __DRIbuffer *buf, *local;
1097
1098 assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
1099 buf = &dri2_surf->buffers[num_buffers];
1100
1101 switch (attachments[i]) {
1102 case __DRI_BUFFER_BACK_LEFT:
1103 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
1104 buf->attachment = attachments[i];
1105 buf->name = get_native_buffer_name(dri2_surf->buffer);
1106 buf->cpp = get_format_bpp(dri2_surf->buffer->format);
1107 buf->pitch = dri2_surf->buffer->stride * buf->cpp;
1108 buf->flags = 0;
1109
1110 if (buf->name)
1111 num_buffers++;
1112
1113 break;
1114 }
1115 /* fall through for pbuffers */
1116 case __DRI_BUFFER_DEPTH:
1117 case __DRI_BUFFER_STENCIL:
1118 case __DRI_BUFFER_ACCUM:
1119 case __DRI_BUFFER_DEPTH_STENCIL:
1120 case __DRI_BUFFER_HIZ:
1121 local = dri2_egl_surface_alloc_local_buffer(dri2_surf,
1122 attachments[i], attachments[i + 1]);
1123
1124 if (local) {
1125 *buf = *local;
1126 num_buffers++;
1127 }
1128 break;
1129 case __DRI_BUFFER_FRONT_LEFT:
1130 case __DRI_BUFFER_FRONT_RIGHT:
1131 case __DRI_BUFFER_FAKE_FRONT_LEFT:
1132 case __DRI_BUFFER_FAKE_FRONT_RIGHT:
1133 case __DRI_BUFFER_BACK_RIGHT:
1134 default:
1135 /* no front or right buffers */
1136 break;
1137 }
1138 }
1139
1140 return num_buffers;
1141 }
1142
1143 static __DRIbuffer *
1144 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
1145 int *width, int *height,
1146 unsigned int *attachments, int count,
1147 int *out_count, void *loaderPrivate)
1148 {
1149 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1150
1151 if (update_buffers(dri2_surf) < 0)
1152 return NULL;
1153
1154 *out_count = droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
1155
1156 if (width)
1157 *width = dri2_surf->base.Width;
1158 if (height)
1159 *height = dri2_surf->base.Height;
1160
1161 return dri2_surf->buffers;
1162 }
1163 #endif /* HAVE_DRM_GRALLOC */
1164
1165 static unsigned
1166 droid_get_capability(void *loaderPrivate, enum dri_loader_cap cap)
1167 {
1168 /* Note: loaderPrivate is _EGLDisplay* */
1169 switch (cap) {
1170 case DRI_LOADER_CAP_RGBA_ORDERING:
1171 return 1;
1172 default:
1173 return 0;
1174 }
1175 }
1176
1177 static EGLBoolean
1178 droid_add_configs_for_visuals(_EGLDisplay *disp)
1179 {
1180 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1181 static const struct {
1182 int format;
1183 int rgba_shifts[4];
1184 unsigned int rgba_sizes[4];
1185 } visuals[] = {
1186 { HAL_PIXEL_FORMAT_RGBA_8888, { 0, 8, 16, 24 }, { 8, 8, 8, 8 } },
1187 { HAL_PIXEL_FORMAT_RGBX_8888, { 0, 8, 16, -1 }, { 8, 8, 8, 0 } },
1188 { HAL_PIXEL_FORMAT_RGB_565, { 11, 5, 0, -1 }, { 5, 6, 5, 0 } },
1189 /* This must be after HAL_PIXEL_FORMAT_RGBA_8888, we only keep BGRA
1190 * visual if it turns out RGBA visual is not available.
1191 */
1192 { HAL_PIXEL_FORMAT_BGRA_8888, { 16, 8, 0, 24 }, { 8, 8, 8, 8 } },
1193 };
1194
1195 unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
1196 int config_count = 0;
1197
1198 /* The nesting of loops is significant here. Also significant is the order
1199 * of the HAL pixel formats. Many Android apps (such as Google's official
1200 * NDK GLES2 example app), and even portions the core framework code (such
1201 * as SystemServiceManager in Nougat), incorrectly choose their EGLConfig.
1202 * They neglect to match the EGLConfig's EGL_NATIVE_VISUAL_ID against the
1203 * window's native format, and instead choose the first EGLConfig whose
1204 * channel sizes match those of the native window format while ignoring the
1205 * channel *ordering*.
1206 *
1207 * We can detect such buggy clients in logcat when they call
1208 * eglCreateSurface, by detecting the mismatch between the EGLConfig's
1209 * format and the window's format.
1210 *
1211 * As a workaround, we generate EGLConfigs such that all EGLConfigs for HAL
1212 * pixel format i precede those for HAL pixel format i+1. In my
1213 * (chadversary) testing on Android Nougat, this was good enough to pacify
1214 * the buggy clients.
1215 */
1216 bool has_rgba = false;
1217 for (int i = 0; i < ARRAY_SIZE(visuals); i++) {
1218 /* Only enable BGRA configs when RGBA is not available. BGRA configs are
1219 * buggy on stock Android.
1220 */
1221 if (visuals[i].format == HAL_PIXEL_FORMAT_BGRA_8888 && has_rgba)
1222 continue;
1223 for (int j = 0; dri2_dpy->driver_configs[j]; j++) {
1224 const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
1225
1226 const EGLint config_attrs[] = {
1227 EGL_NATIVE_VISUAL_ID, visuals[i].format,
1228 EGL_NATIVE_VISUAL_TYPE, visuals[i].format,
1229 EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
1230 EGL_RECORDABLE_ANDROID, EGL_TRUE,
1231 EGL_NONE
1232 };
1233
1234 struct dri2_egl_config *dri2_conf =
1235 dri2_add_config(disp, dri2_dpy->driver_configs[j],
1236 config_count + 1, surface_type, config_attrs,
1237 visuals[i].rgba_shifts, visuals[i].rgba_sizes);
1238 if (dri2_conf) {
1239 if (dri2_conf->base.ConfigID == config_count + 1)
1240 config_count++;
1241 format_count[i]++;
1242 }
1243 }
1244 if (visuals[i].format == HAL_PIXEL_FORMAT_RGBA_8888 && format_count[i])
1245 has_rgba = true;
1246 }
1247
1248 for (int i = 0; i < ARRAY_SIZE(format_count); i++) {
1249 if (!format_count[i]) {
1250 _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
1251 visuals[i].format);
1252 }
1253 }
1254
1255 return (config_count != 0);
1256 }
1257
1258 static const struct dri2_egl_display_vtbl droid_display_vtbl = {
1259 .authenticate = NULL,
1260 .create_window_surface = droid_create_window_surface,
1261 .create_pbuffer_surface = droid_create_pbuffer_surface,
1262 .destroy_surface = droid_destroy_surface,
1263 .create_image = droid_create_image_khr,
1264 .swap_buffers = droid_swap_buffers,
1265 .swap_interval = droid_swap_interval,
1266 .query_buffer_age = droid_query_buffer_age,
1267 .query_surface = droid_query_surface,
1268 .get_dri_drawable = dri2_surface_get_dri_drawable,
1269 .set_shared_buffer_mode = droid_set_shared_buffer_mode,
1270 };
1271
1272 #ifdef HAVE_DRM_GRALLOC
1273 static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
1274 .base = { __DRI_DRI2_LOADER, 4 },
1275
1276 .getBuffers = NULL,
1277 .flushFrontBuffer = droid_flush_front_buffer,
1278 .getBuffersWithFormat = droid_get_buffers_with_format,
1279 .getCapability = droid_get_capability,
1280 };
1281
1282 static const __DRIextension *droid_dri2_loader_extensions[] = {
1283 &droid_dri2_loader_extension.base,
1284 &image_lookup_extension.base,
1285 &use_invalidate.base,
1286 /* No __DRI_MUTABLE_RENDER_BUFFER_LOADER because it requires
1287 * __DRI_IMAGE_LOADER.
1288 */
1289 NULL,
1290 };
1291 #endif /* HAVE_DRM_GRALLOC */
1292
1293 static const __DRIimageLoaderExtension droid_image_loader_extension = {
1294 .base = { __DRI_IMAGE_LOADER, 2 },
1295
1296 .getBuffers = droid_image_get_buffers,
1297 .flushFrontBuffer = droid_flush_front_buffer,
1298 .getCapability = droid_get_capability,
1299 };
1300
1301 static void
1302 droid_display_shared_buffer(__DRIdrawable *driDrawable, int fence_fd,
1303 void *loaderPrivate)
1304 {
1305 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1306 struct ANativeWindowBuffer *old_buffer UNUSED = dri2_surf->buffer;
1307
1308 if (!_eglSurfaceInSharedBufferMode(&dri2_surf->base)) {
1309 _eglLog(_EGL_WARNING, "%s: internal error: buffer is not shared",
1310 __func__);
1311 return;
1312 }
1313
1314 if (fence_fd >= 0) {
1315 /* The driver's fence is more recent than the surface's out fence, if it
1316 * exists at all. So use the driver's fence.
1317 */
1318 if (dri2_surf->out_fence_fd >= 0) {
1319 close(dri2_surf->out_fence_fd);
1320 dri2_surf->out_fence_fd = -1;
1321 }
1322 } else if (dri2_surf->out_fence_fd >= 0) {
1323 fence_fd = dri2_surf->out_fence_fd;
1324 dri2_surf->out_fence_fd = -1;
1325 }
1326
1327 if (dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
1328 fence_fd)) {
1329 _eglLog(_EGL_WARNING, "%s: ANativeWindow::queueBuffer failed", __func__);
1330 close(fence_fd);
1331 return;
1332 }
1333
1334 fence_fd = -1;
1335
1336 if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
1337 &fence_fd)) {
1338 /* Tear down the surface because it no longer has a back buffer. */
1339 struct dri2_egl_display *dri2_dpy =
1340 dri2_egl_display(dri2_surf->base.Resource.Display);
1341
1342 _eglLog(_EGL_WARNING, "%s: ANativeWindow::dequeueBuffer failed", __func__);
1343
1344 dri2_surf->base.Lost = true;
1345 dri2_surf->buffer = NULL;
1346 dri2_surf->back = NULL;
1347
1348 if (dri2_surf->dri_image_back) {
1349 dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
1350 dri2_surf->dri_image_back = NULL;
1351 }
1352
1353 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
1354 return;
1355 }
1356
1357 if (fence_fd < 0)
1358 return;
1359
1360 /* Access to the buffer is controlled by a sync fence. Block on it.
1361 *
1362 * Ideally, we would submit the fence to the driver, and the driver would
1363 * postpone command execution until it signalled. But DRI lacks API for
1364 * that (as of 2018-04-11).
1365 *
1366 * SYNC_IOC_WAIT waits forever if timeout < 0
1367 */
1368 sync_wait(fence_fd, -1);
1369 close(fence_fd);
1370 }
1371
1372 static const __DRImutableRenderBufferLoaderExtension droid_mutable_render_buffer_extension = {
1373 .base = { __DRI_MUTABLE_RENDER_BUFFER_LOADER, 1 },
1374 .displaySharedBuffer = droid_display_shared_buffer,
1375 };
1376
1377 static const __DRIextension *droid_image_loader_extensions[] = {
1378 &droid_image_loader_extension.base,
1379 &image_lookup_extension.base,
1380 &use_invalidate.base,
1381 &droid_mutable_render_buffer_extension.base,
1382 NULL,
1383 };
1384
1385 static EGLBoolean
1386 droid_load_driver(_EGLDisplay *disp, bool swrast)
1387 {
1388 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1389
1390 dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
1391 if (dri2_dpy->driver_name == NULL)
1392 return false;
1393
1394 #ifdef HAVE_DRM_GRALLOC
1395 /* Handle control nodes using __DRI_DRI2_LOADER extension and GEM names
1396 * for backwards compatibility with drm_gralloc. (Do not use on new
1397 * systems.) */
1398 dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
1399 if (!dri2_load_driver(disp)) {
1400 goto error;
1401 }
1402 #else
1403 if (swrast) {
1404 /* Use kms swrast only with vgem / virtio_gpu.
1405 * virtio-gpu fallbacks to software rendering when 3D features
1406 * are unavailable since 6c5ab.
1407 */
1408 if (strcmp(dri2_dpy->driver_name, "vgem") == 0 ||
1409 strcmp(dri2_dpy->driver_name, "virtio_gpu") == 0) {
1410 free(dri2_dpy->driver_name);
1411 dri2_dpy->driver_name = strdup("kms_swrast");
1412 } else {
1413 goto error;
1414 }
1415 }
1416
1417 dri2_dpy->loader_extensions = droid_image_loader_extensions;
1418 if (!dri2_load_driver_dri3(disp)) {
1419 goto error;
1420 }
1421 #endif
1422
1423 return true;
1424
1425 error:
1426 free(dri2_dpy->driver_name);
1427 dri2_dpy->driver_name = NULL;
1428 return false;
1429 }
1430
1431 static void
1432 droid_unload_driver(_EGLDisplay *disp)
1433 {
1434 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1435
1436 dlclose(dri2_dpy->driver);
1437 dri2_dpy->driver = NULL;
1438 free(dri2_dpy->driver_name);
1439 dri2_dpy->driver_name = NULL;
1440 }
1441
1442 static int
1443 droid_filter_device(_EGLDisplay *disp, int fd, const char *vendor)
1444 {
1445 drmVersionPtr ver = drmGetVersion(fd);
1446 if (!ver)
1447 return -1;
1448
1449 if (strcmp(vendor, ver->name) != 0) {
1450 drmFreeVersion(ver);
1451 return -1;
1452 }
1453
1454 drmFreeVersion(ver);
1455 return 0;
1456 }
1457
1458 static EGLBoolean
1459 droid_probe_device(_EGLDisplay *disp, bool swrast)
1460 {
1461 /* Check that the device is supported, by attempting to:
1462 * - load the dri module
1463 * - and, create a screen
1464 */
1465 if (!droid_load_driver(disp, swrast))
1466 return EGL_FALSE;
1467
1468 if (!dri2_create_screen(disp)) {
1469 _eglLog(_EGL_WARNING, "DRI2: failed to create screen");
1470 droid_unload_driver(disp);
1471 return EGL_FALSE;
1472 }
1473 return EGL_TRUE;
1474 }
1475
1476 #ifdef HAVE_DRM_GRALLOC
1477 static EGLBoolean
1478 droid_open_device(_EGLDisplay *disp, bool swrast)
1479 {
1480 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1481 int fd = -1, err = -EINVAL;
1482
1483 if (swrast)
1484 return EGL_FALSE;
1485
1486 if (dri2_dpy->gralloc->perform)
1487 err = dri2_dpy->gralloc->perform(dri2_dpy->gralloc,
1488 GRALLOC_MODULE_PERFORM_GET_DRM_FD,
1489 &fd);
1490 if (err || fd < 0) {
1491 _eglLog(_EGL_WARNING, "fail to get drm fd");
1492 return EGL_FALSE;
1493 }
1494
1495 dri2_dpy->fd = os_dupfd_cloexec(fd);
1496 if (dri2_dpy->fd < 0)
1497 return EGL_FALSE;
1498
1499 if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER)
1500 return EGL_FALSE;
1501
1502 return droid_probe_device(disp, swrast);
1503 }
1504 #else
1505 static EGLBoolean
1506 droid_open_device(_EGLDisplay *disp, bool swrast)
1507 {
1508 #define MAX_DRM_DEVICES 64
1509 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1510 drmDevicePtr device, devices[MAX_DRM_DEVICES] = { NULL };
1511 int num_devices;
1512
1513 char *vendor_name = NULL;
1514 char vendor_buf[PROPERTY_VALUE_MAX];
1515
1516 #ifdef EGL_FORCE_RENDERNODE
1517 const unsigned node_type = DRM_NODE_RENDER;
1518 #else
1519 const unsigned node_type = swrast ? DRM_NODE_PRIMARY : DRM_NODE_RENDER;
1520 #endif
1521
1522 if (property_get("drm.gpu.vendor_name", vendor_buf, NULL) > 0)
1523 vendor_name = vendor_buf;
1524
1525 num_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
1526 if (num_devices < 0)
1527 return EGL_FALSE;
1528
1529 for (int i = 0; i < num_devices; i++) {
1530 device = devices[i];
1531
1532 if (!(device->available_nodes & (1 << node_type)))
1533 continue;
1534
1535 dri2_dpy->fd = loader_open_device(device->nodes[node_type]);
1536 if (dri2_dpy->fd < 0) {
1537 _eglLog(_EGL_WARNING, "%s() Failed to open DRM device %s",
1538 __func__, device->nodes[node_type]);
1539 continue;
1540 }
1541
1542 /* If a vendor is explicitly provided, we use only that.
1543 * Otherwise we fall-back the first device that is supported.
1544 */
1545 if (vendor_name) {
1546 if (droid_filter_device(disp, dri2_dpy->fd, vendor_name)) {
1547 /* Device does not match - try next device */
1548 close(dri2_dpy->fd);
1549 dri2_dpy->fd = -1;
1550 continue;
1551 }
1552 /* If the requested device matches - use it. Regardless if
1553 * init fails, do not fall-back to any other device.
1554 */
1555 if (!droid_probe_device(disp, false)) {
1556 close(dri2_dpy->fd);
1557 dri2_dpy->fd = -1;
1558 }
1559
1560 break;
1561 }
1562 if (droid_probe_device(disp, swrast))
1563 break;
1564
1565 /* No explicit request - attempt the next device */
1566 close(dri2_dpy->fd);
1567 dri2_dpy->fd = -1;
1568 }
1569 drmFreeDevices(devices, num_devices);
1570
1571 if (dri2_dpy->fd < 0) {
1572 _eglLog(_EGL_WARNING, "Failed to open %s DRM device",
1573 vendor_name ? "desired": "any");
1574 return EGL_FALSE;
1575 }
1576
1577 return EGL_TRUE;
1578 #undef MAX_DRM_DEVICES
1579 }
1580
1581 #endif
1582
1583 EGLBoolean
1584 dri2_initialize_android(_EGLDisplay *disp)
1585 {
1586 _EGLDevice *dev;
1587 bool device_opened = false;
1588 struct dri2_egl_display *dri2_dpy;
1589 const char *err;
1590 int ret;
1591
1592 dri2_dpy = calloc(1, sizeof(*dri2_dpy));
1593 if (!dri2_dpy)
1594 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1595
1596 dri2_dpy->fd = -1;
1597 ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
1598 (const hw_module_t **)&dri2_dpy->gralloc);
1599 if (ret) {
1600 err = "DRI2: failed to get gralloc module";
1601 goto cleanup;
1602 }
1603
1604 disp->DriverData = (void *) dri2_dpy;
1605 if (!disp->Options.ForceSoftware)
1606 device_opened = droid_open_device(disp, false);
1607 if (!device_opened)
1608 device_opened = droid_open_device(disp, true);
1609
1610 if (!device_opened) {
1611 err = "DRI2: failed to open device";
1612 goto cleanup;
1613 }
1614
1615 dev = _eglAddDevice(dri2_dpy->fd, false);
1616 if (!dev) {
1617 err = "DRI2: failed to find EGLDevice";
1618 goto cleanup;
1619 }
1620
1621 disp->Device = dev;
1622
1623 if (!dri2_setup_extensions(disp)) {
1624 err = "DRI2: failed to setup extensions";
1625 goto cleanup;
1626 }
1627
1628 dri2_setup_screen(disp);
1629
1630 /* We set the maximum swap interval as 1 for Android platform, since it is
1631 * the maximum value supported by Android according to the value of
1632 * ANativeWindow::maxSwapInterval.
1633 */
1634 dri2_setup_swap_interval(disp, 1);
1635
1636 disp->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
1637 disp->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
1638 disp->Extensions.ANDROID_recordable = EGL_TRUE;
1639
1640 /* Querying buffer age requires a buffer to be dequeued. Without
1641 * EGL_ANDROID_native_fence_sync, dequeue might call eglClientWaitSync and
1642 * result in a deadlock (the lock is already held by eglQuerySurface).
1643 */
1644 if (disp->Extensions.ANDROID_native_fence_sync) {
1645 disp->Extensions.EXT_buffer_age = EGL_TRUE;
1646 } else {
1647 /* disable KHR_partial_update that might have been enabled in
1648 * dri2_setup_screen
1649 */
1650 disp->Extensions.KHR_partial_update = EGL_FALSE;
1651 }
1652
1653 disp->Extensions.KHR_image = EGL_TRUE;
1654 #if ANDROID_API_LEVEL >= 24
1655 if (dri2_dpy->mutable_render_buffer &&
1656 dri2_dpy->loader_extensions == droid_image_loader_extensions) {
1657 disp->Extensions.KHR_mutable_render_buffer = EGL_TRUE;
1658 }
1659 #endif
1660
1661 /* Create configs *after* enabling extensions because presence of DRI
1662 * driver extensions can affect the capabilities of EGLConfigs.
1663 */
1664 if (!droid_add_configs_for_visuals(disp)) {
1665 err = "DRI2: failed to add configs";
1666 goto cleanup;
1667 }
1668
1669 /* Fill vtbl last to prevent accidentally calling virtual function during
1670 * initialization.
1671 */
1672 dri2_dpy->vtbl = &droid_display_vtbl;
1673
1674 return EGL_TRUE;
1675
1676 cleanup:
1677 dri2_display_destroy(disp);
1678 return _eglError(EGL_NOT_INITIALIZED, err);
1679 }