platform_android.c revision af7abc512c422183a761ce3d687086abe282fa74 
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 <errno.h>
31#include <dlfcn.h>
32#include <fcntl.h>
33#include <xf86drm.h>
34
35#if ANDROID_VERSION >= 0x402
36#include <sync/sync.h>
37#endif
38
39#include "loader.h"
40#include "egl_dri2.h"
41#include "egl_dri2_fallbacks.h"
42#include "gralloc_drm.h"
43
44#define ALIGN(val, align)	(((val) + (align) - 1) & ~((align) - 1))
45
46static int
47get_format_bpp(int native)
48{
49   int bpp;
50
51   switch (native) {
52   case HAL_PIXEL_FORMAT_RGBA_8888:
53   case HAL_PIXEL_FORMAT_RGBX_8888:
54   case HAL_PIXEL_FORMAT_BGRA_8888:
55      bpp = 4;
56      break;
57   case HAL_PIXEL_FORMAT_RGB_888:
58      bpp = 3;
59      break;
60   case HAL_PIXEL_FORMAT_RGB_565:
61      bpp = 2;
62      break;
63   case HAL_PIXEL_FORMAT_YV12:
64      bpp = 1;
65      break;
66   default:
67      bpp = 0;
68      break;
69   }
70
71   return bpp;
72}
73
74/* createImageFromFds requires fourcc format */
75static int get_fourcc(int native)
76{
77   switch (native) {
78   case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FOURCC_RGB565;
79   case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FOURCC_ARGB8888;
80   case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FOURCC_ABGR8888;
81   case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FOURCC_XBGR8888;
82   case HAL_PIXEL_FORMAT_YV12:      return __DRI_IMAGE_FOURCC_YVU420;
83   default:
84      _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native);
85   }
86   return -1;
87}
88
89static int get_format(int format)
90{
91   switch (format) {
92   case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
93   case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
94   case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
95   case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
96   case HAL_PIXEL_FORMAT_RGB_888:
97      /* unsupported */
98   default:
99      _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
100   }
101   return -1;
102}
103
104static int
105get_native_buffer_fd(struct ANativeWindowBuffer *buf)
106{
107   native_handle_t *handle = (native_handle_t *)buf->handle;
108   /*
109    * Various gralloc implementations exist, but the dma-buf fd tends
110    * to be first. Access it directly to avoid a dependency on specific
111    * gralloc versions.
112    */
113   return (handle && handle->numFds) ? handle->data[0] : -1;
114}
115
116static int
117get_native_buffer_name(struct ANativeWindowBuffer *buf)
118{
119   return gralloc_drm_get_gem_handle(buf->handle);
120}
121
122static EGLBoolean
123droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
124{
125#if ANDROID_VERSION >= 0x0402
126   int fence_fd;
127
128   if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
129                                        &fence_fd))
130      return EGL_FALSE;
131
132   /* If access to the buffer is controlled by a sync fence, then block on the
133    * fence.
134    *
135    * It may be more performant to postpone blocking until there is an
136    * immediate need to write to the buffer. But doing so would require adding
137    * hooks to the DRI2 loader.
138    *
139    * From the ANativeWindow::dequeueBuffer documentation:
140    *
141    *    The libsync fence file descriptor returned in the int pointed to by
142    *    the fenceFd argument will refer to the fence that must signal
143    *    before the dequeued buffer may be written to.  A value of -1
144    *    indicates that the caller may access the buffer immediately without
145    *    waiting on a fence.  If a valid file descriptor is returned (i.e.
146    *    any value except -1) then the caller is responsible for closing the
147    *    file descriptor.
148    */
149    if (fence_fd >= 0) {
150       /* From the SYNC_IOC_WAIT documentation in <linux/sync.h>:
151        *
152        *    Waits indefinitely if timeout < 0.
153        */
154        int timeout = -1;
155        sync_wait(fence_fd, timeout);
156        close(fence_fd);
157   }
158
159   dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
160#else
161   if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer))
162      return EGL_FALSE;
163
164   dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
165   dri2_surf->window->lockBuffer(dri2_surf->window, dri2_surf->buffer);
166#endif
167
168   return EGL_TRUE;
169}
170
171static EGLBoolean
172droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
173{
174   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
175
176   /* To avoid blocking other EGL calls, release the display mutex before
177    * we enter droid_window_enqueue_buffer() and re-acquire the mutex upon
178    * return.
179    */
180   mtx_unlock(&disp->Mutex);
181
182#if ANDROID_VERSION >= 0x0402
183   /* Queue the buffer without a sync fence. This informs the ANativeWindow
184    * that it may access the buffer immediately.
185    *
186    * From ANativeWindow::dequeueBuffer:
187    *
188    *    The fenceFd argument specifies a libsync fence file descriptor for
189    *    a fence that must signal before the buffer can be accessed.  If
190    *    the buffer can be accessed immediately then a value of -1 should
191    *    be used.  The caller must not use the file descriptor after it
192    *    is passed to queueBuffer, and the ANativeWindow implementation
193    *    is responsible for closing it.
194    */
195   int fence_fd = -1;
196   dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
197                                  fence_fd);
198#else
199   dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer);
200#endif
201
202   dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
203   dri2_surf->buffer = NULL;
204
205   mtx_lock(&disp->Mutex);
206
207   if (dri2_surf->dri_image) {
208      dri2_dpy->image->destroyImage(dri2_surf->dri_image);
209      dri2_surf->dri_image = NULL;
210   }
211
212   return EGL_TRUE;
213}
214
215static void
216droid_window_cancel_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_surf)
217{
218   /* no cancel buffer? */
219   droid_window_enqueue_buffer(disp, dri2_surf);
220}
221
222static __DRIbuffer *
223droid_alloc_local_buffer(struct dri2_egl_surface *dri2_surf,
224                         unsigned int att, unsigned int format)
225{
226   struct dri2_egl_display *dri2_dpy =
227      dri2_egl_display(dri2_surf->base.Resource.Display);
228
229   if (att >= ARRAY_SIZE(dri2_surf->local_buffers))
230      return NULL;
231
232   if (!dri2_surf->local_buffers[att]) {
233      dri2_surf->local_buffers[att] =
234         dri2_dpy->dri2->allocateBuffer(dri2_dpy->dri_screen, att, format,
235               dri2_surf->base.Width, dri2_surf->base.Height);
236   }
237
238   return dri2_surf->local_buffers[att];
239}
240
241static void
242droid_free_local_buffers(struct dri2_egl_surface *dri2_surf)
243{
244   struct dri2_egl_display *dri2_dpy =
245      dri2_egl_display(dri2_surf->base.Resource.Display);
246   int i;
247
248   for (i = 0; i < ARRAY_SIZE(dri2_surf->local_buffers); i++) {
249      if (dri2_surf->local_buffers[i]) {
250         dri2_dpy->dri2->releaseBuffer(dri2_dpy->dri_screen,
251               dri2_surf->local_buffers[i]);
252         dri2_surf->local_buffers[i] = NULL;
253      }
254   }
255}
256
257static _EGLSurface *
258droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
259		    _EGLConfig *conf, void *native_window,
260		    const EGLint *attrib_list)
261{
262   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
263   struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
264   struct dri2_egl_surface *dri2_surf;
265   struct ANativeWindow *window = native_window;
266   const __DRIconfig *config;
267
268   dri2_surf = calloc(1, sizeof *dri2_surf);
269   if (!dri2_surf) {
270      _eglError(EGL_BAD_ALLOC, "droid_create_surface");
271      return NULL;
272   }
273
274   if (!_eglInitSurface(&dri2_surf->base, disp, type, conf, attrib_list))
275      goto cleanup_surface;
276
277   if (type == EGL_WINDOW_BIT) {
278      int format;
279
280      if (!window || window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
281         _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
282         goto cleanup_surface;
283      }
284      if (window->query(window, NATIVE_WINDOW_FORMAT, &format)) {
285         _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
286         goto cleanup_surface;
287      }
288
289      if (format != dri2_conf->base.NativeVisualID) {
290         _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
291               format, dri2_conf->base.NativeVisualID);
292      }
293
294      window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
295      window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
296   }
297
298   config = dri2_get_dri_config(dri2_conf, EGL_WINDOW_BIT,
299                                dri2_surf->base.GLColorspace);
300   if (!config)
301      goto cleanup_surface;
302
303   dri2_surf->dri_drawable =
304      (*dri2_dpy->dri2->createNewDrawable)(dri2_dpy->dri_screen, config,
305                                           dri2_surf);
306   if (dri2_surf->dri_drawable == NULL) {
307      _eglError(EGL_BAD_ALLOC, "dri2->createNewDrawable");
308      goto cleanup_surface;
309   }
310
311   if (window) {
312      window->common.incRef(&window->common);
313      dri2_surf->window = window;
314   }
315
316   return &dri2_surf->base;
317
318cleanup_surface:
319   free(dri2_surf);
320
321   return NULL;
322}
323
324static _EGLSurface *
325droid_create_window_surface(_EGLDriver *drv, _EGLDisplay *disp,
326                            _EGLConfig *conf, void *native_window,
327                            const EGLint *attrib_list)
328{
329   return droid_create_surface(drv, disp, EGL_WINDOW_BIT, conf,
330                               native_window, attrib_list);
331}
332
333static _EGLSurface *
334droid_create_pbuffer_surface(_EGLDriver *drv, _EGLDisplay *disp,
335			    _EGLConfig *conf, const EGLint *attrib_list)
336{
337   return droid_create_surface(drv, disp, EGL_PBUFFER_BIT, conf,
338			      NULL, attrib_list);
339}
340
341static EGLBoolean
342droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
343{
344   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
345   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
346
347   droid_free_local_buffers(dri2_surf);
348
349   if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
350      if (dri2_surf->buffer)
351         droid_window_cancel_buffer(disp, dri2_surf);
352
353      dri2_surf->window->common.decRef(&dri2_surf->window->common);
354   }
355
356   (*dri2_dpy->core->destroyDrawable)(dri2_surf->dri_drawable);
357
358   free(dri2_surf);
359
360   return EGL_TRUE;
361}
362
363static int
364update_buffers(struct dri2_egl_surface *dri2_surf)
365{
366   if (dri2_surf->base.Type != EGL_WINDOW_BIT)
367      return 0;
368
369   /* try to dequeue the next back buffer */
370   if (!dri2_surf->buffer && !droid_window_dequeue_buffer(dri2_surf)) {
371      _eglLog(_EGL_WARNING, "Could not dequeue buffer from native window");
372      return -1;
373   }
374
375   /* free outdated buffers and update the surface size */
376   if (dri2_surf->base.Width != dri2_surf->buffer->width ||
377       dri2_surf->base.Height != dri2_surf->buffer->height) {
378      droid_free_local_buffers(dri2_surf);
379      dri2_surf->base.Width = dri2_surf->buffer->width;
380      dri2_surf->base.Height = dri2_surf->buffer->height;
381   }
382
383   return 0;
384}
385
386static int
387get_back_bo(struct dri2_egl_surface *dri2_surf)
388{
389   struct dri2_egl_display *dri2_dpy =
390      dri2_egl_display(dri2_surf->base.Resource.Display);
391   int fourcc, pitch;
392   int offset = 0, fd;
393
394   if (dri2_surf->dri_image)
395	   return 0;
396
397   if (!dri2_surf->buffer)
398      return -1;
399
400   fd = get_native_buffer_fd(dri2_surf->buffer);
401   if (fd < 0) {
402      _eglLog(_EGL_WARNING, "Could not get native buffer FD");
403      return -1;
404   }
405
406   fourcc = get_fourcc(dri2_surf->buffer->format);
407
408   pitch = dri2_surf->buffer->stride *
409      get_format_bpp(dri2_surf->buffer->format);
410
411   if (fourcc == -1 || pitch == 0) {
412      _eglLog(_EGL_WARNING, "Invalid buffer fourcc(%x) or pitch(%d)",
413              fourcc, pitch);
414      return -1;
415   }
416
417   dri2_surf->dri_image =
418      dri2_dpy->image->createImageFromFds(dri2_dpy->dri_screen,
419                                          dri2_surf->base.Width,
420                                          dri2_surf->base.Height,
421                                          fourcc,
422                                          &fd,
423                                          1,
424                                          &pitch,
425                                          &offset,
426                                          dri2_surf);
427   if (!dri2_surf->dri_image)
428      return -1;
429
430   return 0;
431}
432
433static int
434droid_image_get_buffers(__DRIdrawable *driDrawable,
435                  unsigned int format,
436                  uint32_t *stamp,
437                  void *loaderPrivate,
438                  uint32_t buffer_mask,
439                  struct __DRIimageList *images)
440{
441   struct dri2_egl_surface *dri2_surf = loaderPrivate;
442
443   images->image_mask = 0;
444
445   if (update_buffers(dri2_surf) < 0)
446      return 0;
447
448   if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
449      /*
450       * We don't support front buffers and GLES doesn't require them for
451       * window surfaces, but some DRI drivers will request them anyway.
452       * We just ignore such request as other platforms backends do.
453       */
454   }
455
456   if (buffer_mask & __DRI_IMAGE_BUFFER_BACK) {
457      if (get_back_bo(dri2_surf) < 0)
458         return 0;
459
460      images->back = dri2_surf->dri_image;
461      images->image_mask |= __DRI_IMAGE_BUFFER_BACK;
462   }
463
464   return 1;
465}
466
467static EGLBoolean
468droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
469{
470   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
471   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
472
473   if (dri2_surf->base.Type != EGL_WINDOW_BIT)
474      return EGL_TRUE;
475
476   dri2_flush_drawable_for_swapbuffers(disp, draw);
477
478   if (dri2_surf->buffer)
479      droid_window_enqueue_buffer(disp, dri2_surf);
480
481   (*dri2_dpy->flush->invalidate)(dri2_surf->dri_drawable);
482
483   return EGL_TRUE;
484}
485
486static _EGLImage *
487droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
488                                 struct ANativeWindowBuffer *buf, int fd)
489{
490   unsigned int offsets[3] = { 0, 0, 0 };
491   unsigned int pitches[3] = { 0, 0, 0 };
492
493   const int fourcc = get_fourcc(buf->format);
494   if (fourcc == -1) {
495      _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
496      return NULL;
497   }
498
499   pitches[0] = buf->stride * get_format_bpp(buf->format);
500   if (pitches[0] == 0) {
501      _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
502      return NULL;
503   }
504
505   switch (buf->format) {
506   case HAL_PIXEL_FORMAT_YV12:
507      /* Y plane is assumed to be at offset 0. */
508      /* Cr plane is located after Y plane */
509      offsets[1] = offsets[0] + pitches[0] * buf->height;
510      pitches[1] = ALIGN(pitches[0] / 2, 16);
511      /* Cb plane is located after Cr plane */
512      offsets[2] = offsets[1] + pitches[1] * buf->height / 2;
513      pitches[2] = pitches[1];
514
515      const EGLint attr_list_yv12[] = {
516         EGL_WIDTH, buf->width,
517         EGL_HEIGHT, buf->height,
518         EGL_LINUX_DRM_FOURCC_EXT, fourcc,
519         EGL_DMA_BUF_PLANE0_FD_EXT, fd,
520         EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
521         EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
522         EGL_DMA_BUF_PLANE1_FD_EXT, fd,
523         EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
524         EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
525         EGL_DMA_BUF_PLANE2_FD_EXT, fd,
526         EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
527         EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
528         EGL_NONE, 0
529      };
530
531      return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list_yv12);
532   }
533
534   const EGLint attr_list[] = {
535      EGL_WIDTH, buf->width,
536      EGL_HEIGHT, buf->height,
537      EGL_LINUX_DRM_FOURCC_EXT, fourcc,
538      EGL_DMA_BUF_PLANE0_FD_EXT, fd,
539      EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
540      EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
541      EGL_NONE, 0
542   };
543
544   return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
545}
546
547static _EGLImage *
548droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
549                             struct ANativeWindowBuffer *buf)
550{
551   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
552   struct dri2_egl_image *dri2_img;
553   int name;
554   int format;
555
556   name = get_native_buffer_name(buf);
557   if (!name) {
558      _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
559      return NULL;
560   }
561
562   format = get_format(buf->format);
563   if (format == -1)
564       return NULL;
565
566   dri2_img = calloc(1, sizeof(*dri2_img));
567   if (!dri2_img) {
568      _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
569      return NULL;
570   }
571
572   if (!_eglInitImage(&dri2_img->base, disp)) {
573      free(dri2_img);
574      return NULL;
575   }
576
577   dri2_img->dri_image =
578      dri2_dpy->image->createImageFromName(dri2_dpy->dri_screen,
579					   buf->width,
580					   buf->height,
581					   format,
582					   name,
583					   buf->stride,
584					   dri2_img);
585   if (!dri2_img->dri_image) {
586      free(dri2_img);
587      _eglError(EGL_BAD_ALLOC, "droid_create_image_mesa_drm");
588      return NULL;
589   }
590
591   return &dri2_img->base;
592}
593
594static EGLBoolean
595droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
596                    EGLint attribute, EGLint *value)
597{
598   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
599   switch (attribute) {
600      case EGL_WIDTH:
601         if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
602            dri2_surf->window->query(dri2_surf->window,
603                                     NATIVE_WINDOW_DEFAULT_WIDTH, value);
604            return EGL_TRUE;
605         }
606         break;
607      case EGL_HEIGHT:
608         if (dri2_surf->base.Type == EGL_WINDOW_BIT && dri2_surf->window) {
609            dri2_surf->window->query(dri2_surf->window,
610                                     NATIVE_WINDOW_DEFAULT_HEIGHT, value);
611            return EGL_TRUE;
612         }
613         break;
614      default:
615         break;
616   }
617   return _eglQuerySurface(drv, dpy, surf, attribute, value);
618}
619
620static _EGLImage *
621dri2_create_image_android_native_buffer(_EGLDisplay *disp,
622                                        _EGLContext *ctx,
623                                        struct ANativeWindowBuffer *buf)
624{
625   int fd;
626
627   if (ctx != NULL) {
628      /* From the EGL_ANDROID_image_native_buffer spec:
629       *
630       *     * If <target> is EGL_NATIVE_BUFFER_ANDROID and <ctx> is not
631       *       EGL_NO_CONTEXT, the error EGL_BAD_CONTEXT is generated.
632       */
633      _eglError(EGL_BAD_CONTEXT, "eglCreateEGLImageKHR: for "
634                "EGL_NATIVE_BUFFER_ANDROID, the context must be "
635                "EGL_NO_CONTEXT");
636      return NULL;
637   }
638
639   if (!buf || buf->common.magic != ANDROID_NATIVE_BUFFER_MAGIC ||
640       buf->common.version != sizeof(*buf)) {
641      _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
642      return NULL;
643   }
644
645   fd = get_native_buffer_fd(buf);
646   if (fd >= 0)
647      return droid_create_image_from_prime_fd(disp, ctx, buf, fd);
648
649   return droid_create_image_from_name(disp, ctx, buf);
650}
651
652static _EGLImage *
653droid_create_image_khr(_EGLDriver *drv, _EGLDisplay *disp,
654		       _EGLContext *ctx, EGLenum target,
655		       EGLClientBuffer buffer, const EGLint *attr_list)
656{
657   switch (target) {
658   case EGL_NATIVE_BUFFER_ANDROID:
659      return dri2_create_image_android_native_buffer(disp, ctx,
660            (struct ANativeWindowBuffer *) buffer);
661   default:
662      return dri2_create_image_khr(drv, disp, ctx, target, buffer, attr_list);
663   }
664}
665
666static void
667droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
668{
669}
670
671static int
672droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
673                                    unsigned int *attachments, int count)
674{
675   int num_buffers = 0, i;
676
677   /* fill dri2_surf->buffers */
678   for (i = 0; i < count * 2; i += 2) {
679      __DRIbuffer *buf, *local;
680
681      assert(num_buffers < ARRAY_SIZE(dri2_surf->buffers));
682      buf = &dri2_surf->buffers[num_buffers];
683
684      switch (attachments[i]) {
685      case __DRI_BUFFER_BACK_LEFT:
686         if (dri2_surf->base.Type == EGL_WINDOW_BIT) {
687            buf->attachment = attachments[i];
688            buf->name = get_native_buffer_name(dri2_surf->buffer);
689            buf->cpp = get_format_bpp(dri2_surf->buffer->format);
690            buf->pitch = dri2_surf->buffer->stride * buf->cpp;
691            buf->flags = 0;
692
693            if (buf->name)
694               num_buffers++;
695
696            break;
697         }
698         /* fall through for pbuffers */
699      case __DRI_BUFFER_DEPTH:
700      case __DRI_BUFFER_STENCIL:
701      case __DRI_BUFFER_ACCUM:
702      case __DRI_BUFFER_DEPTH_STENCIL:
703      case __DRI_BUFFER_HIZ:
704         local = droid_alloc_local_buffer(dri2_surf,
705               attachments[i], attachments[i + 1]);
706
707         if (local) {
708            *buf = *local;
709            num_buffers++;
710         }
711         break;
712      case __DRI_BUFFER_FRONT_LEFT:
713      case __DRI_BUFFER_FRONT_RIGHT:
714      case __DRI_BUFFER_FAKE_FRONT_LEFT:
715      case __DRI_BUFFER_FAKE_FRONT_RIGHT:
716      case __DRI_BUFFER_BACK_RIGHT:
717      default:
718         /* no front or right buffers */
719         break;
720      }
721   }
722
723   return num_buffers;
724}
725
726static __DRIbuffer *
727droid_get_buffers_with_format(__DRIdrawable * driDrawable,
728			     int *width, int *height,
729			     unsigned int *attachments, int count,
730			     int *out_count, void *loaderPrivate)
731{
732   struct dri2_egl_surface *dri2_surf = loaderPrivate;
733
734   if (update_buffers(dri2_surf) < 0)
735      return NULL;
736
737   dri2_surf->buffer_count =
738      droid_get_buffers_parse_attachments(dri2_surf, attachments, count);
739
740   if (width)
741      *width = dri2_surf->base.Width;
742   if (height)
743      *height = dri2_surf->base.Height;
744
745   *out_count = dri2_surf->buffer_count;
746
747   return dri2_surf->buffers;
748}
749
750static EGLBoolean
751droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
752{
753   struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
754   static const struct {
755      int format;
756      unsigned int rgba_masks[4];
757   } visuals[] = {
758      { HAL_PIXEL_FORMAT_RGBA_8888, { 0xff, 0xff00, 0xff0000, 0xff000000 } },
759      { HAL_PIXEL_FORMAT_RGBX_8888, { 0xff, 0xff00, 0xff0000, 0x0 } },
760      { HAL_PIXEL_FORMAT_RGB_888,   { 0xff, 0xff00, 0xff0000, 0x0 } },
761      { HAL_PIXEL_FORMAT_RGB_565,   { 0xf800, 0x7e0, 0x1f, 0x0 } },
762      { HAL_PIXEL_FORMAT_BGRA_8888, { 0xff0000, 0xff00, 0xff, 0xff000000 } },
763   };
764   EGLint config_attrs[] = {
765     EGL_NATIVE_VISUAL_ID,   0,
766     EGL_NATIVE_VISUAL_TYPE, 0,
767     EGL_FRAMEBUFFER_TARGET_ANDROID, EGL_TRUE,
768     EGL_RECORDABLE_ANDROID, EGL_TRUE,
769     EGL_MAX_PBUFFER_WIDTH, _EGL_MAX_PBUFFER_WIDTH,
770     EGL_MAX_PBUFFER_HEIGHT, _EGL_MAX_PBUFFER_HEIGHT,
771     EGL_NONE
772   };
773   unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
774   int count, i, j;
775
776   count = 0;
777   for (i = 0; dri2_dpy->driver_configs[i]; i++) {
778      const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
779      struct dri2_egl_config *dri2_conf;
780      unsigned int double_buffered = 0;
781
782      dri2_dpy->core->getConfigAttrib(dri2_dpy->driver_configs[i],
783         __DRI_ATTRIB_DOUBLE_BUFFER, &double_buffered);
784
785      /* support only double buffered configs */
786      if (!double_buffered)
787         continue;
788
789      for (j = 0; j < ARRAY_SIZE(visuals); j++) {
790         config_attrs[1] = visuals[j].format;
791         config_attrs[3] = visuals[j].format;
792
793         dri2_conf = dri2_add_config(dpy, dri2_dpy->driver_configs[i],
794               count + 1, surface_type, config_attrs, visuals[j].rgba_masks);
795         if (dri2_conf) {
796            count++;
797            format_count[j]++;
798         }
799      }
800   }
801
802   for (i = 0; i < ARRAY_SIZE(format_count); i++) {
803      if (!format_count[i]) {
804         _eglLog(_EGL_DEBUG, "No DRI config supports native format 0x%x",
805                 visuals[i].format);
806      }
807   }
808
809   return (count != 0);
810}
811
812static int
813droid_open_device(void)
814{
815   const hw_module_t *mod;
816   int fd = -1, err;
817
818   err = hw_get_module(GRALLOC_HARDWARE_MODULE_ID, &mod);
819   if (!err) {
820      const gralloc_module_t *gr = (gralloc_module_t *) mod;
821
822      err = -EINVAL;
823      if (gr->perform)
824         err = gr->perform(gr, GRALLOC_MODULE_PERFORM_GET_DRM_FD, &fd);
825   }
826   if (err || fd < 0) {
827      _eglLog(_EGL_WARNING, "fail to get drm fd");
828      fd = -1;
829   }
830
831   return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
832}
833
834/* support versions < JellyBean */
835#ifndef ALOGW
836#define ALOGW LOGW
837#endif
838#ifndef ALOGD
839#define ALOGD LOGD
840#endif
841#ifndef ALOGI
842#define ALOGI LOGI
843#endif
844
845static void
846droid_log(EGLint level, const char *msg)
847{
848   switch (level) {
849   case _EGL_DEBUG:
850      ALOGD("%s", msg);
851      break;
852   case _EGL_INFO:
853      ALOGI("%s", msg);
854      break;
855   case _EGL_WARNING:
856      ALOGW("%s", msg);
857      break;
858   case _EGL_FATAL:
859      LOG_FATAL("%s", msg);
860      break;
861   default:
862      break;
863   }
864}
865
866static struct dri2_egl_display_vtbl droid_display_vtbl = {
867   .authenticate = NULL,
868   .create_window_surface = droid_create_window_surface,
869   .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
870   .create_pbuffer_surface = droid_create_pbuffer_surface,
871   .destroy_surface = droid_destroy_surface,
872   .create_image = droid_create_image_khr,
873   .swap_interval = dri2_fallback_swap_interval,
874   .swap_buffers = droid_swap_buffers,
875   .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage,
876   .swap_buffers_region = dri2_fallback_swap_buffers_region,
877   .post_sub_buffer = dri2_fallback_post_sub_buffer,
878   .copy_buffers = dri2_fallback_copy_buffers,
879   .query_buffer_age = dri2_fallback_query_buffer_age,
880   .query_surface = droid_query_surface,
881   .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
882   .get_sync_values = dri2_fallback_get_sync_values,
883   .get_dri_drawable = dri2_surface_get_dri_drawable,
884};
885
886static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
887   .base = { __DRI_DRI2_LOADER, 3 },
888
889   .getBuffers           = NULL,
890   .flushFrontBuffer     = droid_flush_front_buffer,
891   .getBuffersWithFormat = droid_get_buffers_with_format,
892};
893
894static const __DRIimageLoaderExtension droid_image_loader_extension = {
895   .base = { __DRI_IMAGE_LOADER, 1 },
896
897   .getBuffers          = droid_image_get_buffers,
898   .flushFrontBuffer    = droid_flush_front_buffer,
899};
900
901static const __DRIextension *droid_dri2_loader_extensions[] = {
902   &droid_dri2_loader_extension.base,
903   &image_lookup_extension.base,
904   &use_invalidate.base,
905   NULL,
906};
907
908static const __DRIextension *droid_image_loader_extensions[] = {
909   &droid_image_loader_extension.base,
910   &image_lookup_extension.base,
911   &use_invalidate.base,
912   NULL,
913};
914
915EGLBoolean
916dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
917{
918   struct dri2_egl_display *dri2_dpy;
919   const char *err;
920
921   _eglSetLogProc(droid_log);
922
923   loader_set_logger(_eglLog);
924
925   dri2_dpy = calloc(1, sizeof(*dri2_dpy));
926   if (!dri2_dpy)
927      return _eglError(EGL_BAD_ALLOC, "eglInitialize");
928
929   dpy->DriverData = (void *) dri2_dpy;
930
931   dri2_dpy->fd = droid_open_device();
932   if (dri2_dpy->fd < 0) {
933      err = "DRI2: failed to open device";
934      goto cleanup_display;
935   }
936
937   dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
938   if (dri2_dpy->driver_name == NULL) {
939      err = "DRI2: failed to get driver name";
940      goto cleanup_device;
941   }
942
943   if (!dri2_load_driver(dpy)) {
944      err = "DRI2: failed to load driver";
945      goto cleanup_driver_name;
946   }
947
948   dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
949
950   /* render nodes cannot use Gem names, and thus do not support
951    * the __DRI_DRI2_LOADER extension */
952   if (!dri2_dpy->is_render_node)
953      dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
954   else
955      dri2_dpy->loader_extensions = droid_image_loader_extensions;
956
957   if (!dri2_create_screen(dpy)) {
958      err = "DRI2: failed to create screen";
959      goto cleanup_driver;
960   }
961
962   if (!droid_add_configs_for_visuals(drv, dpy)) {
963      err = "DRI2: failed to add configs";
964      goto cleanup_screen;
965   }
966
967   dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
968   dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
969   dpy->Extensions.ANDROID_recordable = EGL_TRUE;
970
971   /* Fill vtbl last to prevent accidentally calling virtual function during
972    * initialization.
973    */
974   dri2_dpy->vtbl = &droid_display_vtbl;
975
976   return EGL_TRUE;
977
978cleanup_screen:
979   dri2_dpy->core->destroyScreen(dri2_dpy->dri_screen);
980cleanup_driver:
981   dlclose(dri2_dpy->driver);
982cleanup_driver_name:
983   free(dri2_dpy->driver_name);
984cleanup_device:
985   close(dri2_dpy->fd);
986cleanup_display:
987   free(dri2_dpy);
988   dpy->DriverData = NULL;
989
990   return _eglError(EGL_NOT_INITIALIZED, err);
991}
992