egl: drop another indentation level in _eglFindDisplay() by inverting an if
[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 __DRIimage *
189 droid_create_image_from_prime_fds_yuv(_EGLDisplay *disp,
190 struct ANativeWindowBuffer *buf,
191 int num_fds, int fds[3])
192 {
193 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
194 struct android_ycbcr ycbcr;
195 int offsets[3];
196 int pitches[3];
197 enum chroma_order chroma_order;
198 int fourcc;
199 int ret;
200 unsigned error;
201
202 if (!dri2_dpy->gralloc->lock_ycbcr) {
203 _eglLog(_EGL_WARNING, "Gralloc does not support lock_ycbcr");
204 return NULL;
205 }
206
207 memset(&ycbcr, 0, sizeof(ycbcr));
208 ret = dri2_dpy->gralloc->lock_ycbcr(dri2_dpy->gralloc, buf->handle,
209 0, 0, 0, 0, 0, &ycbcr);
210 if (ret) {
211 /* HACK: See droid_create_image_from_prime_fds() and
212 * https://issuetracker.google.com/32077885.*/
213 if (buf->format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED)
214 return NULL;
215
216 _eglLog(_EGL_WARNING, "gralloc->lock_ycbcr failed: %d", ret);
217 return NULL;
218 }
219 dri2_dpy->gralloc->unlock(dri2_dpy->gralloc, buf->handle);
220
221 /* When lock_ycbcr's usage argument contains no SW_READ/WRITE flags
222 * it will return the .y/.cb/.cr pointers based on a NULL pointer,
223 * so they can be interpreted as offsets. */
224 offsets[0] = (size_t)ycbcr.y;
225 /* We assume here that all the planes are located in one DMA-buf. */
226 if ((size_t)ycbcr.cr < (size_t)ycbcr.cb) {
227 chroma_order = YCrCb;
228 offsets[1] = (size_t)ycbcr.cr;
229 offsets[2] = (size_t)ycbcr.cb;
230 } else {
231 chroma_order = YCbCr;
232 offsets[1] = (size_t)ycbcr.cb;
233 offsets[2] = (size_t)ycbcr.cr;
234 }
235
236 /* .ystride is the line length (in bytes) of the Y plane,
237 * .cstride is the line length (in bytes) of any of the remaining
238 * Cb/Cr/CbCr planes, assumed to be the same for Cb and Cr for fully
239 * planar formats. */
240 pitches[0] = ycbcr.ystride;
241 pitches[1] = pitches[2] = ycbcr.cstride;
242
243 /* .chroma_step is the byte distance between the same chroma channel
244 * values of subsequent pixels, assumed to be the same for Cb and Cr. */
245 fourcc = get_fourcc_yuv(buf->format, chroma_order, ycbcr.chroma_step);
246 if (fourcc == -1) {
247 _eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, chroma_order = %s, chroma_step = %d",
248 buf->format, chroma_order == YCbCr ? "YCbCr" : "YCrCb", ycbcr.chroma_step);
249 return NULL;
250 }
251
252 /*
253 * Since this is EGL_NATIVE_BUFFER_ANDROID don't assume that
254 * the single-fd case cannot happen. So handle eithe single
255 * fd or fd-per-plane case:
256 */
257 if (num_fds == 1) {
258 fds[2] = fds[1] = fds[0];
259 } else {
260 int expected_planes = (ycbcr.chroma_step == 2) ? 2 : 3;
261 assert(num_fds == expected_planes);
262 }
263
264 return dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
265 buf->width, buf->height, fourcc,
266 fds, num_fds, pitches, offsets,
267 EGL_ITU_REC601_EXT,
268 EGL_YUV_NARROW_RANGE_EXT,
269 EGL_YUV_CHROMA_SITING_0_EXT,
270 EGL_YUV_CHROMA_SITING_0_EXT,
271 &error,
272 NULL);
273 }
274
275 static __DRIimage *
276 droid_create_image_from_prime_fds(_EGLDisplay *disp,
277 struct ANativeWindowBuffer *buf)
278 {
279 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
280 int pitches[4] = { 0 }, offsets[4] = { 0 };
281 unsigned error;
282 int num_fds;
283 int fds[3];
284
285 num_fds = get_native_buffer_fds(buf, fds);
286 if (num_fds == 0)
287 return NULL;
288
289 if (is_yuv(buf->format)) {
290 __DRIimage *image;
291
292 image = droid_create_image_from_prime_fds_yuv(disp, buf, num_fds, fds);
293 /*
294 * HACK: https://issuetracker.google.com/32077885
295 * There is no API available to properly query the IMPLEMENTATION_DEFINED
296 * format. As a workaround we rely here on gralloc allocating either
297 * an arbitrary YCbCr 4:2:0 or RGBX_8888, with the latter being recognized
298 * by lock_ycbcr failing.
299 */
300 if (image || buf->format != HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED)
301 return image;
302 }
303
304 /*
305 * Non-YUV formats could *also* have multiple planes, such as ancillary
306 * color compression state buffer, but the rest of the code isn't ready
307 * yet to deal with modifiers:
308 */
309 assert(num_fds == 1);
310
311 const int fourcc = get_fourcc(buf->format);
312 if (fourcc == -1) {
313 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
314 return NULL;
315 }
316
317 pitches[0] = buf->stride * get_format_bpp(buf->format);
318 if (pitches[0] == 0) {
319 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
320 return NULL;
321 }
322
323 return dri2_dpy->image->createImageFromDmaBufs(dri2_dpy->dri_screen,
324 buf->width, buf->height, fourcc,
325 fds, num_fds, pitches, offsets,
326 EGL_ITU_REC601_EXT,
327 EGL_YUV_NARROW_RANGE_EXT,
328 EGL_YUV_CHROMA_SITING_0_EXT,
329 EGL_YUV_CHROMA_SITING_0_EXT,
330 &error,
331 NULL);
332 }
333
334 /* More recent CrOS gralloc has a perform op that fills out the struct below
335 * with canonical information about the buffer and its modifier, planes,
336 * offsets and strides. If we have this, we can skip straight to
337 * createImageFromDmaBufs2() and avoid all the guessing and recalculations.
338 * This also gives us the modifier and plane offsets/strides for multiplanar
339 * compressed buffers (eg Intel CCS buffers) in order to make that work in Android.
340 */
341
342 static const char cros_gralloc_module_name[] = "CrOS Gralloc";
343
344 #define CROS_GRALLOC_DRM_GET_BUFFER_INFO 4
345
346 struct cros_gralloc0_buffer_info {
347 uint32_t drm_fourcc;
348 int num_fds;
349 int fds[4];
350 uint64_t modifier;
351 int offset[4];
352 int stride[4];
353 };
354
355 static __DRIimage *
356 droid_create_image_from_cros_info(_EGLDisplay *disp,
357 struct ANativeWindowBuffer *buf)
358 {
359 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
360 struct cros_gralloc0_buffer_info info;
361 unsigned error;
362
363 if (strcmp(dri2_dpy->gralloc->common.name, cros_gralloc_module_name) == 0 &&
364 dri2_dpy->gralloc->perform &&
365 dri2_dpy->image->base.version >= 15 &&
366 dri2_dpy->image->createImageFromDmaBufs2 != NULL &&
367 dri2_dpy->gralloc->perform(dri2_dpy->gralloc,
368 CROS_GRALLOC_DRM_GET_BUFFER_INFO,
369 buf->handle, &info) == 0) {
370 return dri2_dpy->image->createImageFromDmaBufs2(dri2_dpy->dri_screen,
371 buf->width, buf->height,
372 info.drm_fourcc, info.modifier,
373 info.fds, info.num_fds,
374 info.stride, info.offset,
375 EGL_ITU_REC601_EXT,
376 EGL_YUV_FULL_RANGE_EXT,
377 EGL_YUV_CHROMA_SITING_0_EXT,
378 EGL_YUV_CHROMA_SITING_0_EXT,
379 &error,
380 NULL);
381 }
382
383 return NULL;
384 }
385
386 static __DRIimage *
387 droid_create_image_from_native_buffer(_EGLDisplay *disp,
388 struct ANativeWindowBuffer *buf)
389 {
390 __DRIimage *dri_image;
391
392 dri_image = droid_create_image_from_cros_info(disp, buf);
393 if (dri_image)
394 return dri_image;
395
396 return droid_create_image_from_prime_fds(disp, buf);
397 }
398
399 static EGLBoolean
400 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
401 {
402 int fence_fd;
403
404 if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
405 &fence_fd))
406 return EGL_FALSE;
407
408 /* If access to the buffer is controlled by a sync fence, then block on the
409 * fence.
410 *
411 * It may be more performant to postpone blocking until there is an
412 * immediate need to write to the buffer. But doing so would require adding
413 * hooks to the DRI2 loader.
414 *
415 * From the ANativeWindow::dequeueBuffer documentation:
416 *
417 * The libsync fence file descriptor returned in the int pointed to by
418 * the fenceFd argument will refer to the fence that must signal
419 * before the dequeued buffer may be written to. A value of -1
420 * indicates that the caller may access the buffer immediately without
421 * waiting on a fence. If a valid file descriptor is returned (i.e.
422 * any value except -1) then the caller is responsible for closing the
423 * file descriptor.
424 */
425 if (fence_fd >= 0) {
426 /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
427 *
428 * Waits indefinitely if timeout < 0.
429 */
430 int timeout = -1;
431 sync_wait(fence_fd, timeout);
432 close(fence_fd);
433 }
434
435 /* Record all the buffers created by ANativeWindow and update back buffer
436 * for updating buffer's age in swap_buffers.
437 */
438 EGLBoolean updated = EGL_FALSE;
439 for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
440 if (!dri2_surf->color_buffers[i].buffer) {
441 dri2_surf->color_buffers[i].buffer = dri2_surf->buffer;
442 }
443 if (dri2_surf->color_buffers[i].buffer == dri2_surf->buffer) {
444 dri2_surf->back = &dri2_surf->color_buffers[i];
445 updated = EGL_TRUE;
446 break;
447 }
448 }
449
450 if (!updated) {
451 /* In case of all the buffers were recreated by ANativeWindow, reset
452 * the color_buffers
453 */
454 for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
455 dri2_surf->color_buffers[i].buffer = NULL;
456 dri2_surf->color_buffers[i].age = 0;
457 }
458 dri2_surf->color_buffers[0].buffer = dri2_surf->buffer;
459 dri2_surf->back = &dri2_surf->color_buffers[0];
460 }
461
462 return EGL_TRUE;
463 }
464
465 static EGLBoolean
466 droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
467 {
468 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
469
470 /* To avoid blocking other EGL calls, release the display mutex before
471 * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon
472 * return.
473 */
474 mtx_unlock(&disp->Mutex);
475
476 /* Queue the buffer with stored out fence fd. The ANativeWindow or buffer
477 * consumer may choose to wait for the fence to signal before accessing
478 * it. If fence fd value is -1, buffer can be accessed by consumer
479 * immediately. Consumer or application shouldn't rely on timestamp
480 * associated with fence if the fence fd is -1.
481 *
482 * Ownership of fd is transferred to consumer after queueBuffer and the
483 * consumer is responsible for closing it. Caller must not use the fd
484 * after passing it to queueBuffer.
485 */
486 int fence_fd = dri2_surf->out_fence_fd;
487 dri2_surf->out_fence_fd = -1;
488 dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
489 fence_fd);
490
491 dri2_surf->buffer = NULL;
492 dri2_surf->back = NULL;
493
494 mtx_lock(&disp->Mutex);
495
496 if (dri2_surf->dri_image_back) {
497 dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
498 dri2_surf->dri_image_back = NULL;
499 }
500
501 return EGL_TRUE;
502 }
503
504 static void
505 droid_window_cancel_buffer(struct dri2_egl_surface *dri2_surf)
506 {
507 int ret;
508 int fence_fd = dri2_surf->out_fence_fd;
509
510 dri2_surf->out_fence_fd = -1;
511 ret = dri2_surf->window->cancelBuffer(dri2_surf->window,
512 dri2_surf->buffer, fence_fd);
513 dri2_surf->buffer = NULL;
514 if (ret < 0) {
515 _eglLog(_EGL_WARNING, "ANativeWindow::cancelBuffer failed");
516 dri2_surf->base.Lost = EGL_TRUE;
517 }
518 }
519
520 static bool
521 droid_set_shared_buffer_mode(_EGLDisplay *disp, _EGLSurface *surf, bool mode)
522 {
523 #if ANDROID_API_LEVEL >= 24
524 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
525 struct ANativeWindow *window = dri2_surf->window;
526
527 assert(surf->Type == EGL_WINDOW_BIT);
528 assert(_eglSurfaceHasMutableRenderBuffer(&dri2_surf->base));
529
530 _eglLog(_EGL_DEBUG, "%s: mode=%d", __func__, mode);
531
532 if (native_window_set_shared_buffer_mode(window, mode)) {
533 _eglLog(_EGL_WARNING, "failed native_window_set_shared_buffer_mode"
534 "(window=%p, mode=%d)", window, mode);
535 return false;
536 }
537
538 return true;
539 #else
540 _eglLog(_EGL_FATAL, "%s:%d: internal error: unreachable", __FILE__, __LINE__);
541 return false;
542 #endif
543 }
544
545 static _EGLSurface *
546 droid_create_surface(_EGLDisplay *disp, EGLint type, _EGLConfig *conf,
547 void *native_window, const EGLint *attrib_list)
548 {
549 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
550 struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
551 struct dri2_egl_surface *dri2_surf;
552 struct ANativeWindow *window = native_window;
553 const __DRIconfig *config;
554
555 dri2_surf = calloc(1, sizeof *dri2_surf);
556 if (!dri2_surf) {
557 _eglError(EGL_BAD_ALLOC, "droid_create_surface");
558 return NULL;
559 }
560
561 if (!dri2_init_surface(&dri2_surf->base, disp, type, conf, attrib_list,
562 true, native_window))
563 goto cleanup_surface;
564
565 if (type == EGL_WINDOW_BIT) {
566 int format;
567 int buffer_count;
568 int min_buffer_count, max_buffer_count;
569
570 /* Prefer triple buffering for performance reasons. */
571 const int preferred_buffer_count = 3;
572
573 if (window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
574 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
575 goto cleanup_surface;
576 }
577 if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
578 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
579 goto cleanup_surface;
580 }
581
582 /* Query ANativeWindow for MIN_UNDEQUEUED_BUFFER, minimum amount
583 * of undequeued buffers.
584 */
585 if (window->query(window, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
586 &min_buffer_count)) {
587 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
588 goto cleanup_surface;
589 }
590
591 /* Query for maximum buffer count, application can set this
592 * to limit the total amount of buffers.
593 */
594 if (window->query(window, NATIVE_WINDOW_MAX_BUFFER_COUNT,
595 &max_buffer_count)) {
596 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
597 goto cleanup_surface;
598 }
599
600 /* Clamp preferred between minimum (min undequeued + 1 dequeued)
601 * and maximum.
602 */
603 buffer_count = CLAMP(preferred_buffer_count, min_buffer_count + 1,
604 max_buffer_count);
605
606 if (native_window_set_buffer_count(window, buffer_count)) {
607 _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
608 goto cleanup_surface;
609 }
610 dri2_surf->color_buffers = calloc(buffer_count,
611 sizeof(*dri2_surf->color_buffers));
612 if (!dri2_surf->color_buffers) {
613 _eglError(EGL_BAD_ALLOC, "droid_create_surface");
614 goto cleanup_surface;
615 }
616 dri2_surf->color_buffers_count = buffer_count;
617
618 if (format != dri2_conf->base.NativeVisualID) {
619 _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
620 format, dri2_conf->base.NativeVisualID);
621 }
622
623 window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
624 window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
625
626 uint32_t usage = strcmp(dri2_dpy->driver_name, "kms_swrast") == 0
627 ? GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN
628 : GRALLOC_USAGE_HW_RENDER;
629 native_window_set_usage(window, usage);
630 }
631
632 config = dri2_get_dri_config(dri2_conf, type,
633 dri2_surf->base.GLColorspace);
634 if (!config) {
635 _eglError(EGL_BAD_MATCH, "Unsupported surfacetype/colorspace configuration");
636 goto cleanup_surface;
637 }
638
639 if (!dri2_create_drawable(dri2_dpy, config, dri2_surf, dri2_surf))
640 goto cleanup_surface;
641
642 if (window) {
643 window->common.incRef(&window->common);
644 dri2_surf->window = window;
645 }
646
647 return &dri2_surf->base;
648
649 cleanup_surface:
650 if (dri2_surf->color_buffers_count)
651 free(dri2_surf->color_buffers);
652 free(dri2_surf);
653
654 return NULL;
655 }
656
657 static _EGLSurface *
658 droid_create_window_surface(_EGLDisplay *disp, _EGLConfig *conf,
659 void *native_window, const EGLint *attrib_list)
660 {
661 return droid_create_surface(disp, EGL_WINDOW_BIT, conf,
662 native_window, attrib_list);
663 }
664
665 static _EGLSurface *
666 droid_create_pbuffer_surface(_EGLDisplay *disp, _EGLConfig *conf,
667 const EGLint *attrib_list)
668 {
669 return droid_create_surface(disp, EGL_PBUFFER_BIT, conf,
670 NULL, attrib_list);
671 }
672
673 static EGLBoolean
674 droid_destroy_surface(_EGLDisplay *disp, _EGLSurface *surf)
675 {
676 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
677 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
678
679 dri2_egl_surface_free_local_buffers(dri2_surf);
680
681 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
682 if (dri2_surf->buffer)
683 droid_window_cancel_buffer(dri2_surf);
684
685 dri2_surf->window->common.decRef(&dri2_surf->window->common);
686 }
687
688 if (dri2_surf->dri_image_back) {
689 _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_back", __func__, __LINE__);
690 dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
691 dri2_surf->dri_image_back = NULL;
692 }
693
694 if (dri2_surf->dri_image_front) {
695 _eglLog(_EGL_DEBUG, "%s : %d : destroy dri_image_front", __func__, __LINE__);
696 dri2_dpy->image->destroyImage(dri2_surf->dri_image_front);
697 dri2_surf->dri_image_front = NULL;
698 }
699
700 dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
701
702 dri2_fini_surface(surf);
703 free(dri2_surf->color_buffers);
704 free(dri2_surf);
705
706 return EGL_TRUE;
707 }
708
709 static EGLBoolean
710 droid_swap_interval(_EGLDisplay *disp, _EGLSurface *surf, EGLint interval)
711 {
712 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
713 struct ANativeWindow *window = dri2_surf->window;
714
715 if (window->setSwapInterval(window, interval))
716 return EGL_FALSE;
717
718 surf->SwapInterval = interval;
719 return EGL_TRUE;
720 }
721
722 static int
723 update_buffers(struct dri2_egl_surface *dri2_surf)
724 {
725 if (dri2_surf->base.Lost)
726 return -1;
727
728 if (dri2_surf->base.Type != EGL_WINDOW_BIT)
729 return 0;
730
731 /* try to dequeue the next back buffer */
732 if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
733 _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
734 dri2_surf->base.Lost = EGL_TRUE;
735 return -1;
736 }
737
738 /* free outdated buffers and update the surface size */
739 if (dri2_surf->base.Width != dri2_surf->buffer->width ||
740 dri2_surf->base.Height != dri2_surf->buffer->height) {
741 dri2_egl_surface_free_local_buffers(dri2_surf);
742 dri2_surf->base.Width = dri2_surf->buffer->width;
743 dri2_surf->base.Height = dri2_surf->buffer->height;
744 }
745
746 return 0;
747 }
748
749 static int
750 get_front_bo(struct dri2_egl_surface *dri2_surf, unsigned int format)
751 {
752 struct dri2_egl_display *dri2_dpy =
753 dri2_egl_display(dri2_surf->base.Resource.Display);
754
755 if (dri2_surf->dri_image_front)
756 return 0;
757
758 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
759 /* According current EGL spec, front buffer rendering
760 * for window surface is not supported now.
761 * and mesa doesn't have the implementation of this case.
762 * Add warning message, but not treat it as error.
763 */
764 _eglLog(_EGL_DEBUG, "DRI driver requested unsupported front buffer for window surface");
765 } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
766 dri2_surf->dri_image_front =
767 dri2_dpy->image->createImage(dri2_dpy->dri_screen,
768 dri2_surf->base.Width,
769 dri2_surf->base.Height,
770 format,
771 0,
772 dri2_surf);
773 if (!dri2_surf->dri_image_front) {
774 _eglLog(_EGL_WARNING, "dri2_image_front allocation failed");
775 return -1;
776 }
777 }
778
779 return 0;
780 }
781
782 static int
783 get_back_bo(struct dri2_egl_surface *dri2_surf)
784 {
785 _EGLDisplay *disp = dri2_surf->base.Resource.Display;
786
787 if (dri2_surf->dri_image_back)
788 return 0;
789
790 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
791 if (!dri2_surf->buffer) {
792 _eglLog(_EGL_WARNING, "Could not get native buffer");
793 return -1;
794 }
795
796 dri2_surf->dri_image_back =
797 droid_create_image_from_native_buffer(disp, dri2_surf->buffer);
798 if (!dri2_surf->dri_image_back) {
799 _eglLog(_EGL_WARNING, "failed to create DRI image from FD");
800 return -1;
801 }
802 } else if (dri2_surf->base.Type == EGL_PBUFFER_BIT) {
803 /* The EGL 1.5 spec states that pbuffers are single-buffered. Specifically,
804 * the spec states that they have a back buffer but no front buffer, in
805 * contrast to pixmaps, which have a front buffer but no back buffer.
806 *
807 * Single-buffered surfaces with no front buffer confuse Mesa; so we deviate
808 * from the spec, following the precedent of Mesa's EGL X11 platform. The
809 * X11 platform correctly assigns pbuffers to single-buffered configs, but
810 * assigns the pbuffer a front buffer instead of a back buffer.
811 *
812 * Pbuffers in the X11 platform mostly work today, so let's just copy its
813 * behavior instead of trying to fix (and hence potentially breaking) the
814 * world.
815 */
816 _eglLog(_EGL_DEBUG, "DRI driver requested unsupported back buffer for pbuffer surface");
817 }
818
819 return 0;
820 }
821
822 /* Some drivers will pass multiple bits in buffer_mask.
823 * For such case, will go through all the bits, and
824 * will not return error when unsupported buffer is requested, only
825 * return error when the allocation for supported buffer failed.
826 */
827 static int
828 droid_image_get_buffers(__DRIdrawable *driDrawable,
829 unsigned int format,
830 uint32_t *stamp,
831 void *loaderPrivate,
832 uint32_t buffer_mask,
833 struct __DRIimageList *images)
834 {
835 struct dri2_egl_surface *dri2_surf = loaderPrivate;
836
837 images->image_mask = 0;
838 images->front = NULL;
839 images->back = NULL;
840
841 if (update_buffers(dri2_surf) < 0)
842 return 0;
843
844 if (_eglSurfaceInSharedBufferMode(&dri2_surf->base)) {
845 if (get_back_bo(dri2_surf) < 0)
846 return 0;
847
848 /* We have dri_image_back because this is a window surface and
849 * get_back_bo() succeeded.
850 */
851 assert(dri2_surf->dri_image_back);
852 images->back = dri2_surf->dri_image_back;
853 images->image_mask |= __DRI_IMAGE_BUFFER_SHARED;
854
855 /* There exists no accompanying back nor front buffer. */
856 return 1;
857 }
858
859 if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
860 if (get_front_bo(dri2_surf, format) < 0)
861 return 0;
862
863 if (dri2_surf->dri_image_front) {
864 images->front = dri2_surf->dri_image_front;
865 images->image_mask |= __DRI_IMAGE_BUFFER_FRONT;
866 }
867 }
868
869 if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
870 if (get_back_bo(dri2_surf) < 0)
871 return 0;
872
873 if (dri2_surf->dri_image_back) {
874 images->back = dri2_surf->dri_image_back;
875 images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
876 }
877 }
878
879 return 1;
880 }
881
882 static EGLint
883 droid_query_buffer_age(_EGLDisplay *disp, _EGLSurface *surface)
884 {
885 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surface);
886
887 if (update_buffers(dri2_surf) < 0) {
888 _eglError(EGL_BAD_ALLOC, "droid_query_buffer_age");
889 return -1;
890 }
891
892 return dri2_surf->back ? dri2_surf->back->age : 0;
893 }
894
895 static EGLBoolean
896 droid_swap_buffers(_EGLDisplay *disp, _EGLSurface *draw)
897 {
898 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
899 struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
900 const bool has_mutable_rb = _eglSurfaceHasMutableRenderBuffer(draw);
901
902 /* From the EGL_KHR_mutable_render_buffer spec (v12):
903 *
904 * If surface is a single-buffered window, pixmap, or pbuffer surface
905 * for which there is no pending change to the EGL_RENDER_BUFFER
906 * attribute, eglSwapBuffers has no effect.
907 */
908 if (has_mutable_rb &&
909 draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER &&
910 draw->ActiveRenderBuffer == EGL_SINGLE_BUFFER) {
911 _eglLog(_EGL_DEBUG, "%s: remain in shared buffer mode", __func__);
912 return EGL_TRUE;
913 }
914
915 for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
916 if (dri2_surf->color_buffers[i].age > 0)
917 dri2_surf->color_buffers[i].age++;
918 }
919
920 /* "XXX: we don't use get_back_bo() since it causes regressions in
921 * several dEQP tests.
922 */
923 if (dri2_surf->back)
924 dri2_surf->back->age = 1;
925
926 dri2_flush_drawable_for_swapbuffers(disp, draw);
927
928 /* dri2_surf->buffer can be null even when no error has occured. For
929 * example, if the user has called no GL rendering commands since the
930 * previous eglSwapBuffers, then the driver may have not triggered
931 * a callback to ANativeWindow::dequeueBuffer, in which case
932 * dri2_surf->buffer remains null.
933 */
934 if (dri2_surf->buffer)
935 droid_window_enqueue_buffer(disp, dri2_surf);
936
937 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
938
939 /* Update the shared buffer mode */
940 if (has_mutable_rb &&
941 draw->ActiveRenderBuffer != draw->RequestedRenderBuffer) {
942 bool mode = (draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER);
943 _eglLog(_EGL_DEBUG, "%s: change to shared buffer mode %d",
944 __func__, mode);
945
946 if (!droid_set_shared_buffer_mode(disp, draw, mode))
947 return EGL_FALSE;
948 draw->ActiveRenderBuffer = draw->RequestedRenderBuffer;
949 }
950
951 return EGL_TRUE;
952 }
953
954 #ifdef HAVE_DRM_GRALLOC
955 static int get_format(int format)
956 {
957 switch (format) {
958 case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
959 case HAL_PIXEL_FORMAT_RGB_565: return __DRI_IMAGE_FORMAT_RGB565;
960 case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
961 case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
962 /*
963 * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack.
964 * TODO: Revert this once https://issuetracker.google.com/32077885 is fixed.
965 */
966 case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
967 case HAL_PIXEL_FORMAT_RGBA_FP16: return __DRI_IMAGE_FORMAT_ABGR16161616F;
968 case HAL_PIXEL_FORMAT_RGBA_1010102: return __DRI_IMAGE_FORMAT_ABGR2101010;
969 default:
970 _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
971 }
972 return -1;
973 }
974
975 static _EGLImage *
976 droid_create_image_from_name(_EGLDisplay *disp,
977 struct ANativeWindowBuffer *buf)
978 {
979 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
980 __DRIimage *dri_image;
981 int name;
982 int format;
983
984 name = get_native_buffer_name(buf);
985 if (!name) {
986 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
987 return NULL;
988 }
989
990 format = get_format(buf->format);
991 if (format == -1)
992 return NULL;
993
994 return
995 dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
996 buf->width,
997 buf->height,
998 format,
999 name,
1000 buf->stride,
1001 dri2_img);
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 if (ctx != NULL) {
1037 /* From the EGL_ANDROID_image_native_buffer spec:
1038 *
1039 * * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
1040 * EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
1041 */
1042 _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
1043 "EGL_NATIVE_BUFFER_ANDROID, the context must be "
1044 "EGL_NO_CONTEXT");
1045 return NULL;
1046 }
1047
1048 if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
1049 buf->common.version != sizeof(*buf)) {
1050 _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
1051 return NULL;
1052 }
1053
1054 __DRIimage *dri_image =
1055 droid_create_image_from_native_buffer(disp, buf);
1056
1057 #ifdef HAVE_DRM_GRALLOC
1058 if (dri_image == NULL)
1059 dri_image = droid_create_image_from_name(disp, buf);
1060 #endif
1061
1062 if (dri_image)
1063 return dri2_create_image_from_dri(disp, dri_image);
1064
1065 return NULL;
1066 }
1067
1068 static _EGLImage *
1069 droid_create_image_khr(_EGLDisplay *disp, _EGLContext *ctx, EGLenum target,
1070 EGLClientBuffer buffer, const EGLint *attr_list)
1071 {
1072 switch (target) {
1073 case EGL_NATIVE_BUFFER_ANDROID:
1074 return dri2_create_image_android_native_buffer(disp, ctx,
1075 (struct ANativeWindowBuffer *) buffer);
1076 default:
1077 return dri2_create_image_khr(disp, ctx, target, buffer, attr_list);
1078 }
1079 }
1080
1081 static void
1082 droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
1083 {
1084 }
1085
1086 #ifdef HAVE_DRM_GRALLOC
1087 static int
1088 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
1089 unsigned int *attachments, int count)
1090 {
1091 int num_buffers = 0;
1092
1093 /* fill dri2_surf->buffers */
1094 for (int i = 0; i < count * 2; i += 2) {
1095 __DRIbuffer *buf, *local;
1096
1097 assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
1098 buf = &dri2_surf->buffers[num_buffers];
1099
1100 switch (attachments[i]) {
1101 case __DRI_BUFFER_BACK_LEFT:
1102 if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
1103 buf->attachment = attachments[i];
1104 buf->name = get_native_buffer_name(dri2_surf->buffer);
1105 buf->cpp = get_format_bpp(dri2_surf->buffer->format);
1106 buf->pitch = dri2_surf->buffer->stride * buf->cpp;
1107 buf->flags = 0;
1108
1109 if (buf->name)
1110 num_buffers++;
1111
1112 break;
1113 }
1114 /* fall through for pbuffers */
1115 case __DRI_BUFFER_DEPTH:
1116 case __DRI_BUFFER_STENCIL:
1117 case __DRI_BUFFER_ACCUM:
1118 case __DRI_BUFFER_DEPTH_STENCIL:
1119 case __DRI_BUFFER_HIZ:
1120 local = dri2_egl_surface_alloc_local_buffer(dri2_surf,
1121 attachments[i], attachments[i + 1]);
1122
1123 if (local) {
1124 *buf = *local;
1125 num_buffers++;
1126 }
1127 break;
1128 case __DRI_BUFFER_FRONT_LEFT:
1129 case __DRI_BUFFER_FRONT_RIGHT:
1130 case __DRI_BUFFER_FAKE_FRONT_LEFT:
1131 case __DRI_BUFFER_FAKE_FRONT_RIGHT:
1132 case __DRI_BUFFER_BACK_RIGHT:
1133 default:
1134 /* no front or right buffers */
1135 break;
1136 }
1137 }
1138
1139 return num_buffers;
1140 }
1141
1142 static __DRIbuffer *
1143 droid_get_buffers_with_format(__DRIdrawable * driDrawable,
1144 int *width, int *height,
1145 unsigned int *attachments, int count,
1146 int *out_count, void *loaderPrivate)
1147 {
1148 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1149
1150 if (update_buffers(dri2_surf) < 0)
1151 return NULL;
1152
1153 *out_count = droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
1154
1155 if (width)
1156 *width = dri2_surf->base.Width;
1157 if (height)
1158 *height = dri2_surf->base.Height;
1159
1160 return dri2_surf->buffers;
1161 }
1162 #endif /* HAVE_DRM_GRALLOC */
1163
1164 static unsigned
1165 droid_get_capability(void *loaderPrivate, enum dri_loader_cap cap)
1166 {
1167 /* Note: loaderPrivate is _EGLDisplay* */
1168 switch (cap) {
1169 case DRI_LOADER_CAP_RGBA_ORDERING:
1170 return 1;
1171 default:
1172 return 0;
1173 }
1174 }
1175
1176 static EGLBoolean
1177 droid_add_configs_for_visuals(_EGLDisplay *disp)
1178 {
1179 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1180 static const struct {
1181 int format;
1182 int rgba_shifts[4];
1183 unsigned int rgba_sizes[4];
1184 } visuals[] = {
1185 { HAL_PIXEL_FORMAT_RGBA_8888, { 0, 8, 16, 24 }, { 8, 8, 8, 8 } },
1186 { HAL_PIXEL_FORMAT_RGBX_8888, { 0, 8, 16, -1 }, { 8, 8, 8, 0 } },
1187 { HAL_PIXEL_FORMAT_RGB_565, { 11, 5, 0, -1 }, { 5, 6, 5, 0 } },
1188 /* This must be after HAL_PIXEL_FORMAT_RGBA_8888, we only keep BGRA
1189 * visual if it turns out RGBA visual is not available.
1190 */
1191 { HAL_PIXEL_FORMAT_BGRA_8888, { 16, 8, 0, 24 }, { 8, 8, 8, 8 } },
1192 };
1193
1194 unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
1195 int config_count = 0;
1196
1197 /* The nesting of loops is significant here. Also significant is the order
1198 * of the HAL pixel formats. Many Android apps (such as Google's official
1199 * NDK GLES2 example app), and even portions the core framework code (such
1200 * as SystemServiceManager in Nougat), incorrectly choose their EGLConfig.
1201 * They neglect to match the EGLConfig's EGL_NATIVE_VISUAL_ID against the
1202 * window's native format, and instead choose the first EGLConfig whose
1203 * channel sizes match those of the native window format while ignoring the
1204 * channel *ordering*.
1205 *
1206 * We can detect such buggy clients in logcat when they call
1207 * eglCreateSurface, by detecting the mismatch between the EGLConfig's
1208 * format and the window's format.
1209 *
1210 * As a workaround, we generate EGLConfigs such that all EGLConfigs for HAL
1211 * pixel format i precede those for HAL pixel format i+1. In my
1212 * (chadversary) testing on Android Nougat, this was good enough to pacify
1213 * the buggy clients.
1214 */
1215 bool has_rgba = false;
1216 for (int i = 0; i < ARRAY_SIZE(visuals); i++) {
1217 /* Only enable BGRA configs when RGBA is not available. BGRA configs are
1218 * buggy on stock Android.
1219 */
1220 if (visuals[i].format == HAL_PIXEL_FORMAT_BGRA_8888 && has_rgba)
1221 continue;
1222 for (int j = 0; dri2_dpy->driver_configs[j]; j++) {
1223 const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
1224
1225 const EGLint config_attrs[] = {
1226 EGL_NATIVE_VISUAL_ID, visuals[i].format,
1227 EGL_NATIVE_VISUAL_TYPE, visuals[i].format,
1228 EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
1229 EGL_RECORDABLE_ANDROID, EGL_TRUE,
1230 EGL_NONE
1231 };
1232
1233 struct dri2_egl_config *dri2_conf =
1234 dri2_add_config(disp, dri2_dpy->driver_configs[j],
1235 config_count + 1, surface_type, config_attrs,
1236 visuals[i].rgba_shifts, visuals[i].rgba_sizes);
1237 if (dri2_conf) {
1238 if (dri2_conf->base.ConfigID == config_count + 1)
1239 config_count++;
1240 format_count[i]++;
1241 }
1242 }
1243 if (visuals[i].format == HAL_PIXEL_FORMAT_RGBA_8888 && format_count[i])
1244 has_rgba = true;
1245 }
1246
1247 for (int i = 0; i < ARRAY_SIZE(format_count); i++) {
1248 if (!format_count[i]) {
1249 _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
1250 visuals[i].format);
1251 }
1252 }
1253
1254 return (config_count != 0);
1255 }
1256
1257 static const struct dri2_egl_display_vtbl droid_display_vtbl = {
1258 .authenticate = NULL,
1259 .create_window_surface = droid_create_window_surface,
1260 .create_pbuffer_surface = droid_create_pbuffer_surface,
1261 .destroy_surface = droid_destroy_surface,
1262 .create_image = droid_create_image_khr,
1263 .swap_buffers = droid_swap_buffers,
1264 .swap_interval = droid_swap_interval,
1265 .query_buffer_age = droid_query_buffer_age,
1266 .query_surface = droid_query_surface,
1267 .get_dri_drawable = dri2_surface_get_dri_drawable,
1268 .set_shared_buffer_mode = droid_set_shared_buffer_mode,
1269 };
1270
1271 #ifdef HAVE_DRM_GRALLOC
1272 static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
1273 .base = { __DRI_DRI2_LOADER, 4 },
1274
1275 .getBuffers = NULL,
1276 .flushFrontBuffer = droid_flush_front_buffer,
1277 .getBuffersWithFormat = droid_get_buffers_with_format,
1278 .getCapability = droid_get_capability,
1279 };
1280
1281 static const __DRIextension *droid_dri2_loader_extensions[] = {
1282 &droid_dri2_loader_extension.base,
1283 &image_lookup_extension.base,
1284 &use_invalidate.base,
1285 /* No __DRI_MUTABLE_RENDER_BUFFER_LOADER because it requires
1286 * __DRI_IMAGE_LOADER.
1287 */
1288 NULL,
1289 };
1290 #endif /* HAVE_DRM_GRALLOC */
1291
1292 static const __DRIimageLoaderExtension droid_image_loader_extension = {
1293 .base = { __DRI_IMAGE_LOADER, 2 },
1294
1295 .getBuffers = droid_image_get_buffers,
1296 .flushFrontBuffer = droid_flush_front_buffer,
1297 .getCapability = droid_get_capability,
1298 };
1299
1300 static void
1301 droid_display_shared_buffer(__DRIdrawable *driDrawable, int fence_fd,
1302 void *loaderPrivate)
1303 {
1304 struct dri2_egl_surface *dri2_surf = loaderPrivate;
1305 struct ANativeWindowBuffer *old_buffer UNUSED = dri2_surf->buffer;
1306
1307 if (!_eglSurfaceInSharedBufferMode(&dri2_surf->base)) {
1308 _eglLog(_EGL_WARNING, "%s: internal error: buffer is not shared",
1309 __func__);
1310 return;
1311 }
1312
1313 if (fence_fd >= 0) {
1314 /* The driver's fence is more recent than the surface's out fence, if it
1315 * exists at all. So use the driver's fence.
1316 */
1317 if (dri2_surf->out_fence_fd >= 0) {
1318 close(dri2_surf->out_fence_fd);
1319 dri2_surf->out_fence_fd = -1;
1320 }
1321 } else if (dri2_surf->out_fence_fd >= 0) {
1322 fence_fd = dri2_surf->out_fence_fd;
1323 dri2_surf->out_fence_fd = -1;
1324 }
1325
1326 if (dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
1327 fence_fd)) {
1328 _eglLog(_EGL_WARNING, "%s: ANativeWindow::queueBuffer failed", __func__);
1329 close(fence_fd);
1330 return;
1331 }
1332
1333 fence_fd = -1;
1334
1335 if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
1336 &fence_fd)) {
1337 /* Tear down the surface because it no longer has a back buffer. */
1338 struct dri2_egl_display *dri2_dpy =
1339 dri2_egl_display(dri2_surf->base.Resource.Display);
1340
1341 _eglLog(_EGL_WARNING, "%s: ANativeWindow::dequeueBuffer failed", __func__);
1342
1343 dri2_surf->base.Lost = true;
1344 dri2_surf->buffer = NULL;
1345 dri2_surf->back = NULL;
1346
1347 if (dri2_surf->dri_image_back) {
1348 dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
1349 dri2_surf->dri_image_back = NULL;
1350 }
1351
1352 dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
1353 return;
1354 }
1355
1356 if (fence_fd < 0)
1357 return;
1358
1359 /* Access to the buffer is controlled by a sync fence. Block on it.
1360 *
1361 * Ideally, we would submit the fence to the driver, and the driver would
1362 * postpone command execution until it signalled. But DRI lacks API for
1363 * that (as of 2018-04-11).
1364 *
1365 * SYNC_IOC_WAIT waits forever if timeout < 0
1366 */
1367 sync_wait(fence_fd, -1);
1368 close(fence_fd);
1369 }
1370
1371 static const __DRImutableRenderBufferLoaderExtension droid_mutable_render_buffer_extension = {
1372 .base = { __DRI_MUTABLE_RENDER_BUFFER_LOADER, 1 },
1373 .displaySharedBuffer = droid_display_shared_buffer,
1374 };
1375
1376 static const __DRIextension *droid_image_loader_extensions[] = {
1377 &droid_image_loader_extension.base,
1378 &image_lookup_extension.base,
1379 &use_invalidate.base,
1380 &droid_mutable_render_buffer_extension.base,
1381 NULL,
1382 };
1383
1384 static EGLBoolean
1385 droid_load_driver(_EGLDisplay *disp, bool swrast)
1386 {
1387 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1388
1389 dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
1390 if (dri2_dpy->driver_name == NULL)
1391 return false;
1392
1393 #ifdef HAVE_DRM_GRALLOC
1394 /* Handle control nodes using __DRI_DRI2_LOADER extension and GEM names
1395 * for backwards compatibility with drm_gralloc. (Do not use on new
1396 * systems.) */
1397 dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
1398 if (!dri2_load_driver(disp)) {
1399 goto error;
1400 }
1401 #else
1402 if (swrast) {
1403 /* Use kms swrast only with vgem / virtio_gpu.
1404 * virtio-gpu fallbacks to software rendering when 3D features
1405 * are unavailable since 6c5ab.
1406 */
1407 if (strcmp(dri2_dpy->driver_name, "vgem") == 0 ||
1408 strcmp(dri2_dpy->driver_name, "virtio_gpu") == 0) {
1409 free(dri2_dpy->driver_name);
1410 dri2_dpy->driver_name = strdup("kms_swrast");
1411 } else {
1412 goto error;
1413 }
1414 }
1415
1416 dri2_dpy->loader_extensions = droid_image_loader_extensions;
1417 if (!dri2_load_driver_dri3(disp)) {
1418 goto error;
1419 }
1420 #endif
1421
1422 return true;
1423
1424 error:
1425 free(dri2_dpy->driver_name);
1426 dri2_dpy->driver_name = NULL;
1427 return false;
1428 }
1429
1430 static void
1431 droid_unload_driver(_EGLDisplay *disp)
1432 {
1433 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1434
1435 dlclose(dri2_dpy->driver);
1436 dri2_dpy->driver = NULL;
1437 free(dri2_dpy->driver_name);
1438 dri2_dpy->driver_name = NULL;
1439 }
1440
1441 static int
1442 droid_filter_device(_EGLDisplay *disp, int fd, const char *vendor)
1443 {
1444 drmVersionPtr ver = drmGetVersion(fd);
1445 if (!ver)
1446 return -1;
1447
1448 if (strcmp(vendor, ver->name) != 0) {
1449 drmFreeVersion(ver);
1450 return -1;
1451 }
1452
1453 drmFreeVersion(ver);
1454 return 0;
1455 }
1456
1457 static EGLBoolean
1458 droid_probe_device(_EGLDisplay *disp, bool swrast)
1459 {
1460 /* Check that the device is supported, by attempting to:
1461 * - load the dri module
1462 * - and, create a screen
1463 */
1464 if (!droid_load_driver(disp, swrast))
1465 return EGL_FALSE;
1466
1467 if (!dri2_create_screen(disp)) {
1468 _eglLog(_EGL_WARNING, "DRI2: failed to create screen");
1469 droid_unload_driver(disp);
1470 return EGL_FALSE;
1471 }
1472 return EGL_TRUE;
1473 }
1474
1475 #ifdef HAVE_DRM_GRALLOC
1476 static EGLBoolean
1477 droid_open_device(_EGLDisplay *disp, bool swrast)
1478 {
1479 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1480 int fd = -1, err = -EINVAL;
1481
1482 if (swrast)
1483 return EGL_FALSE;
1484
1485 if (dri2_dpy->gralloc->perform)
1486 err = dri2_dpy->gralloc->perform(dri2_dpy->gralloc,
1487 GRALLOC_MODULE_PERFORM_GET_DRM_FD,
1488 &fd);
1489 if (err || fd < 0) {
1490 _eglLog(_EGL_WARNING, "fail to get drm fd");
1491 return EGL_FALSE;
1492 }
1493
1494 dri2_dpy->fd = os_dupfd_cloexec(fd);
1495 if (dri2_dpy->fd < 0)
1496 return EGL_FALSE;
1497
1498 if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER)
1499 return EGL_FALSE;
1500
1501 return droid_probe_device(disp, swrast);
1502 }
1503 #else
1504 static EGLBoolean
1505 droid_open_device(_EGLDisplay *disp, bool swrast)
1506 {
1507 #define MAX_DRM_DEVICES 64
1508 struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
1509 drmDevicePtr device, devices[MAX_DRM_DEVICES] = { NULL };
1510 int num_devices;
1511
1512 char *vendor_name = NULL;
1513 char vendor_buf[PROPERTY_VALUE_MAX];
1514
1515 #ifdef EGL_FORCE_RENDERNODE
1516 const unsigned node_type = DRM_NODE_RENDER;
1517 #else
1518 const unsigned node_type = swrast ? DRM_NODE_PRIMARY : DRM_NODE_RENDER;
1519 #endif
1520
1521 if (property_get("drm.gpu.vendor_name", vendor_buf, NULL) > 0)
1522 vendor_name = vendor_buf;
1523
1524 num_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
1525 if (num_devices < 0)
1526 return EGL_FALSE;
1527
1528 for (int i = 0; i < num_devices; i++) {
1529 device = devices[i];
1530
1531 if (!(device->available_nodes & (1 << node_type)))
1532 continue;
1533
1534 dri2_dpy->fd = loader_open_device(device->nodes[node_type]);
1535 if (dri2_dpy->fd < 0) {
1536 _eglLog(_EGL_WARNING, "%s() Failed to open DRM device %s",
1537 __func__, device->nodes[node_type]);
1538 continue;
1539 }
1540
1541 /* If a vendor is explicitly provided, we use only that.
1542 * Otherwise we fall-back the first device that is supported.
1543 */
1544 if (vendor_name) {
1545 if (droid_filter_device(disp, dri2_dpy->fd, vendor_name)) {
1546 /* Device does not match - try next device */
1547 close(dri2_dpy->fd);
1548 dri2_dpy->fd = -1;
1549 continue;
1550 }
1551 /* If the requested device matches - use it. Regardless if
1552 * init fails, do not fall-back to any other device.
1553 */
1554 if (!droid_probe_device(disp, false)) {
1555 close(dri2_dpy->fd);
1556 dri2_dpy->fd = -1;
1557 }
1558
1559 break;
1560 }
1561 if (droid_probe_device(disp, swrast))
1562 break;
1563
1564 /* No explicit request - attempt the next device */
1565 close(dri2_dpy->fd);
1566 dri2_dpy->fd = -1;
1567 }
1568 drmFreeDevices(devices, num_devices);
1569
1570 if (dri2_dpy->fd < 0) {
1571 _eglLog(_EGL_WARNING, "Failed to open %s DRM device",
1572 vendor_name ? "desired": "any");
1573 return EGL_FALSE;
1574 }
1575
1576 return EGL_TRUE;
1577 #undef MAX_DRM_DEVICES
1578 }
1579
1580 #endif
1581
1582 EGLBoolean
1583 dri2_initialize_android(_EGLDisplay *disp)
1584 {
1585 _EGLDevice *dev;
1586 bool device_opened = false;
1587 struct dri2_egl_display *dri2_dpy;
1588 const char *err;
1589 int ret;
1590
1591 dri2_dpy = calloc(1, sizeof(*dri2_dpy));
1592 if (!dri2_dpy)
1593 return _eglError(EGL_BAD_ALLOC, "eglInitialize");
1594
1595 dri2_dpy->fd = -1;
1596 ret = hw_get_module(GRALLOC_HARDWARE_MODULE_ID,
1597 (const hw_module_t **)&dri2_dpy->gralloc);
1598 if (ret) {
1599 err = "DRI2: failed to get gralloc module";
1600 goto cleanup;
1601 }
1602
1603 disp->DriverData = (void *) dri2_dpy;
1604 if (!disp->Options.ForceSoftware)
1605 device_opened = droid_open_device(disp, false);
1606 if (!device_opened)
1607 device_opened = droid_open_device(disp, true);
1608
1609 if (!device_opened) {
1610 err = "DRI2: failed to open device";
1611 goto cleanup;
1612 }
1613
1614 dev = _eglAddDevice(dri2_dpy->fd, false);
1615 if (!dev) {
1616 err = "DRI2: failed to find EGLDevice";
1617 goto cleanup;
1618 }
1619
1620 disp->Device = dev;
1621
1622 if (!dri2_setup_extensions(disp)) {
1623 err = "DRI2: failed to setup extensions";
1624 goto cleanup;
1625 }
1626
1627 dri2_setup_screen(disp);
1628
1629 /* We set the maximum swap interval as 1 for Android platform, since it is
1630 * the maximum value supported by Android according to the value of
1631 * ANativeWindow::maxSwapInterval.
1632 */
1633 dri2_setup_swap_interval(disp, 1);
1634
1635 disp->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
1636 disp->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
1637 disp->Extensions.ANDROID_recordable = EGL_TRUE;
1638
1639 /* Querying buffer age requires a buffer to be dequeued. Without
1640 * EGL_ANDROID_native_fence_sync, dequeue might call eglClientWaitSync and
1641 * result in a deadlock (the lock is already held by eglQuerySurface).
1642 */
1643 if (disp->Extensions.ANDROID_native_fence_sync) {
1644 disp->Extensions.EXT_buffer_age = EGL_TRUE;
1645 } else {
1646 /* disable KHR_partial_update that might have been enabled in
1647 * dri2_setup_screen
1648 */
1649 disp->Extensions.KHR_partial_update = EGL_FALSE;
1650 }
1651
1652 disp->Extensions.KHR_image = EGL_TRUE;
1653 #if ANDROID_API_LEVEL >= 24
1654 if (dri2_dpy->mutable_render_buffer &&
1655 dri2_dpy->loader_extensions == droid_image_loader_extensions) {
1656 disp->Extensions.KHR_mutable_render_buffer = EGL_TRUE;
1657 }
1658 #endif
1659
1660 /* Create configs *after* enabling extensions because presence of DRI
1661 * driver extensions can affect the capabilities of EGLConfigs.
1662 */
1663 if (!droid_add_configs_for_visuals(disp)) {
1664 err = "DRI2: failed to add configs";
1665 goto cleanup;
1666 }
1667
1668 /* Fill vtbl last to prevent accidentally calling virtual function during
1669 * initialization.
1670 */
1671 dri2_dpy->vtbl = &droid_display_vtbl;
1672
1673 return EGL_TRUE;
1674
1675 cleanup:
1676 dri2_display_destroy(disp);
1677 return _eglError(EGL_NOT_INITIALIZED, err);
1678 }