egl: inline fallback for get_sync_values
[mesa.git] / src / egl / drivers / dri2 / platform_android.c
index 34e3ef66bfeb91f9c2fa3f920ba51ddd1fbdf369..bee601c1fdd69693610d60a3b785cb2fcb5fae59 100644 (file)
  * DEALINGS IN THE SOFTWARE.
  */
 
+#include <cutils/properties.h>
 #include <errno.h>
+#include <dirent.h>
 #include <dlfcn.h>
 #include <fcntl.h>
 #include <xf86drm.h>
 #include <stdbool.h>
+#include <stdio.h>
 #include <sync/sync.h>
+#include <sys/types.h>
+#include <drm-uapi/drm_fourcc.h>
+
+#include "util/os_file.h"
 
 #include "loader.h"
 #include "egl_dri2.h"
 #include "egl_dri2_fallbacks.h"
+
+#ifdef HAVE_DRM_GRALLOC
+#include <gralloc_drm_handle.h>
 #include "gralloc_drm.h"
+#endif /* HAVE_DRM_GRALLOC */
 
 #define ALIGN(val, align)      (((val) + (align) - 1) & ~((align) - 1))
 
+enum chroma_order {
+   YCbCr,
+   YCrCb,
+};
+
 struct droid_yuv_format {
    /* Lookup keys */
    int native; /* HAL_PIXEL_FORMAT_ */
-   int is_ycrcb; /* 0 if chroma order is {Cb, Cr}, 1 if {Cr, Cb} */
+   enum chroma_order chroma_order; /* chroma order is {Cb, Cr} or {Cr, Cb} */
    int chroma_step; /* Distance in bytes between subsequent chroma pixels. */
 
    /* Result */
-   int fourcc; /* __DRI_IMAGE_FOURCC_ */
+   int fourcc; /* DRM_FORMAT_ */
 };
 
 /* The following table is used to look up a DRI image FourCC based
  * on native format and information contained in android_ycbcr struct. */
 static const struct droid_yuv_format droid_yuv_formats[] = {
    /* Native format, YCrCb, Chroma step, DRI image FourCC */
-   { HAL_PIXEL_FORMAT_YCbCr_420_888,   0, 2, __DRI_IMAGE_FOURCC_NV12 },
-   { HAL_PIXEL_FORMAT_YCbCr_420_888,   0, 1, __DRI_IMAGE_FOURCC_YUV420 },
-   { HAL_PIXEL_FORMAT_YCbCr_420_888,   1, 1, __DRI_IMAGE_FOURCC_YVU420 },
-   { HAL_PIXEL_FORMAT_YV12,            1, 1, __DRI_IMAGE_FOURCC_YVU420 },
-   /* HACK: See droid_create_image_from_prime_fd() and
+   { HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 2, DRM_FORMAT_NV12 },
+   { HAL_PIXEL_FORMAT_YCbCr_420_888, YCbCr, 1, DRM_FORMAT_YUV420 },
+   { HAL_PIXEL_FORMAT_YCbCr_420_888, YCrCb, 1, DRM_FORMAT_YVU420 },
+   { HAL_PIXEL_FORMAT_YV12,          YCrCb, 1, DRM_FORMAT_YVU420 },
+   /* HACK: See droid_create_image_from_prime_fds() and
     * https://issuetracker.google.com/32077885. */
-   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,   0, 2, __DRI_IMAGE_FOURCC_NV12 },
-   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,   0, 1, __DRI_IMAGE_FOURCC_YUV420 },
-   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED,   1, 1, __DRI_IMAGE_FOURCC_YVU420 },
+   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 2, DRM_FORMAT_NV12 },
+   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCbCr, 1, DRM_FORMAT_YUV420 },
+   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_YVU420 },
+   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_AYUV },
+   { HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED, YCrCb, 1, DRM_FORMAT_XYUV8888 },
 };
 
 static int
-get_fourcc_yuv(int native, int is_ycrcb, int chroma_step)
+get_fourcc_yuv(int native, enum chroma_order chroma_order, int chroma_step)
 {
    for (int i = 0; i < ARRAY_SIZE(droid_yuv_formats); ++i)
       if (droid_yuv_formats[i].native == native &&
-          droid_yuv_formats[i].is_ycrcb == is_ycrcb &&
+          droid_yuv_formats[i].chroma_order == chroma_order &&
           droid_yuv_formats[i].chroma_step == chroma_step)
          return droid_yuv_formats[i].fourcc;
 
@@ -94,6 +112,9 @@ get_format_bpp(int native)
    int bpp;
 
    switch (native) {
+   case HAL_PIXEL_FORMAT_RGBA_FP16:
+      bpp = 8;
+      break;
    case HAL_PIXEL_FORMAT_RGBA_8888:
    case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
       /*
@@ -102,6 +123,7 @@ get_format_bpp(int native)
        */
    case HAL_PIXEL_FORMAT_RGBX_8888:
    case HAL_PIXEL_FORMAT_BGRA_8888:
+   case HAL_PIXEL_FORMAT_RGBA_1010102:
       bpp = 4;
       break;
    case HAL_PIXEL_FORMAT_RGB_565:
@@ -119,56 +141,50 @@ get_format_bpp(int native)
 static int get_fourcc(int native)
 {
    switch (native) {
-   case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FOURCC_RGB565;
-   case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FOURCC_ARGB8888;
-   case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FOURCC_ABGR8888;
+   case HAL_PIXEL_FORMAT_RGB_565:   return DRM_FORMAT_RGB565;
+   case HAL_PIXEL_FORMAT_BGRA_8888: return DRM_FORMAT_ARGB8888;
+   case HAL_PIXEL_FORMAT_RGBA_8888: return DRM_FORMAT_ABGR8888;
    case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
       /*
        * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack.
        * TODO: Remove this once https://issuetracker.google.com/32077885 is fixed.
        */
-   case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FOURCC_XBGR8888;
+   case HAL_PIXEL_FORMAT_RGBX_8888: return DRM_FORMAT_XBGR8888;
+   case HAL_PIXEL_FORMAT_RGBA_FP16: return DRM_FORMAT_ABGR16161616F;
+   case HAL_PIXEL_FORMAT_RGBA_1010102: return DRM_FORMAT_ABGR2101010;
    default:
       _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", native);
    }
    return -1;
 }
 
-static int get_format(int format)
-{
-   switch (format) {
-   case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
-   case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
-   case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
-   case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
-      /*
-       * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack.
-       * TODO: Revert this once https://issuetracker.google.com/32077885 is fixed.
-       */
-   case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
-   default:
-      _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
-   }
-   return -1;
-}
-
-static int
-get_native_buffer_fd(struct ANativeWindowBuffer *buf)
+/* returns # of fds, and by reference the actual fds */
+static unsigned
+get_native_buffer_fds(struct ANativeWindowBuffer *buf, int fds[3])
 {
    native_handle_t *handle = (native_handle_t *)buf->handle;
+
+   if (!handle)
+      return 0;
+
    /*
     * Various gralloc implementations exist, but the dma-buf fd tends
     * to be first. Access it directly to avoid a dependency on specific
     * gralloc versions.
     */
-   return (handle && handle->numFds) ? handle->data[0] : -1;
+   for (int i = 0; i < handle->numFds; i++)
+      fds[i] = handle->data[i];
+
+   return handle->numFds;
 }
 
+#ifdef HAVE_DRM_GRALLOC
 static int
 get_native_buffer_name(struct ANativeWindowBuffer *buf)
 {
    return gralloc_drm_get_gem_handle(buf->handle);
 }
+#endif /* HAVE_DRM_GRALLOC */
 
 static EGLBoolean
 droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
@@ -206,13 +222,11 @@ droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
         close(fence_fd);
    }
 
-   dri2_surf->buffer->common.incRef(&dri2_surf->buffer->common);
-
    /* Record all the buffers created by ANativeWindow and update back buffer
     * for updating buffer's age in swap_buffers.
     */
    EGLBoolean updated = EGL_FALSE;
-   for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
+   for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
       if (!dri2_surf->color_buffers[i].buffer) {
          dri2_surf->color_buffers[i].buffer = dri2_surf->buffer;
       }
@@ -227,7 +241,7 @@ droid_window_dequeue_buffer(struct dri2_egl_surface *dri2_surf)
       /* In case of all the buffers were recreated by ANativeWindow, reset
        * the color_buffers
        */
-      for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
+      for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
          dri2_surf->color_buffers[i].buffer = NULL;
          dri2_surf->color_buffers[i].age = 0;
       }
@@ -264,7 +278,6 @@ droid_window_enqueue_buffer(_EGLDisplay *disp, struct dri2_egl_surface *dri2_sur
    dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
                                   fence_fd);
 
-   dri2_surf->buffer->common.decRef(&dri2_surf->buffer->common);
    dri2_surf->buffer = NULL;
    dri2_surf->back = NULL;
 
@@ -287,18 +300,43 @@ droid_window_cancel_buffer(struct dri2_egl_surface *dri2_surf)
    dri2_surf->out_fence_fd = -1;
    ret = dri2_surf->window->cancelBuffer(dri2_surf->window,
                                          dri2_surf->buffer, fence_fd);
+   dri2_surf->buffer = NULL;
    if (ret < 0) {
       _eglLog(_EGL_WARNING, "ANativeWindow::cancelBuffer failed");
       dri2_surf->base.Lost = EGL_TRUE;
    }
 }
 
+static bool
+droid_set_shared_buffer_mode(_EGLDisplay *disp, _EGLSurface *surf, bool mode)
+{
+#if ANDROID_API_LEVEL >= 24
+   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
+   struct ANativeWindow *window = dri2_surf->window;
+
+   assert(surf->Type == EGL_WINDOW_BIT);
+   assert(_eglSurfaceHasMutableRenderBuffer(&dri2_surf->base));
+
+   _eglLog(_EGL_DEBUG, "%s: mode=%d", __func__, mode);
+
+   if (native_window_set_shared_buffer_mode(window, mode)) {
+      _eglLog(_EGL_WARNING, "failed native_window_set_shared_buffer_mode"
+              "(window=%p, mode=%d)", window, mode);
+      return false;
+   }
+
+   return true;
+#else
+   _eglLog(_EGL_FATAL, "%s:%d: internal error: unreachable", __FILE__, __LINE__);
+   return false;
+#endif
+}
+
 static _EGLSurface *
 droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
                    _EGLConfig *conf, void *native_window,
                    const EGLint *attrib_list)
 {
-   __DRIcreateNewDrawableFunc createNewDrawable;
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    struct dri2_egl_config *dri2_conf = dri2_egl_config(conf);
    struct dri2_egl_surface *dri2_surf;
@@ -311,11 +349,17 @@ droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
       return NULL;
    }
 
-   if (!dri2_init_surface(&dri2_surf->base, disp, type, conf, attrib_list, true))
+   if (!dri2_init_surface(&dri2_surf->base, disp, type, conf, attrib_list,
+                          true, native_window))
       goto cleanup_surface;
 
    if (type == EGL_WINDOW_BIT) {
       int format;
+      int buffer_count;
+      int min_buffer_count, max_buffer_count;
+
+      /* Prefer triple buffering for performance reasons. */
+      const int preferred_buffer_count = 3;
 
       if (window->common.magic != ANDROID_NATIVE_WINDOW_MAGIC) {
          _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
@@ -326,6 +370,42 @@ droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
          goto cleanup_surface;
       }
 
+      /* Query ANativeWindow for MIN_UNDEQUEUED_BUFFER, minimum amount
+       * of undequeued buffers.
+       */
+      if (window->query(window, NATIVE_WINDOW_MIN_UNDEQUEUED_BUFFERS,
+                        &min_buffer_count)) {
+         _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
+         goto cleanup_surface;
+      }
+
+      /* Query for maximum buffer count, application can set this
+       * to limit the total amount of buffers.
+       */
+      if (window->query(window, NATIVE_WINDOW_MAX_BUFFER_COUNT,
+                        &max_buffer_count)) {
+         _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
+         goto cleanup_surface;
+      }
+
+      /* Clamp preferred between minimum (min undequeued + 1 dequeued)
+       * and maximum.
+       */
+      buffer_count = CLAMP(preferred_buffer_count, min_buffer_count + 1,
+                           max_buffer_count);
+
+      if (native_window_set_buffer_count(window, buffer_count)) {
+         _eglError(EGL_BAD_NATIVE_WINDOW, "droid_create_surface");
+         goto cleanup_surface;
+      }
+      dri2_surf->color_buffers = calloc(buffer_count,
+                                        sizeof(*dri2_surf->color_buffers));
+      if (!dri2_surf->color_buffers) {
+         _eglError(EGL_BAD_ALLOC, "droid_create_surface");
+         goto cleanup_surface;
+      }
+      dri2_surf->color_buffers_count = buffer_count;
+
       if (format != dri2_conf->base.NativeVisualID) {
          _eglLog(_EGL_WARNING, "Native format mismatch: 0x%x != 0x%x",
                format, dri2_conf->base.NativeVisualID);
@@ -333,24 +413,22 @@ droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
 
       window->query(window, NATIVE_WINDOW_WIDTH, &dri2_surf->base.Width);
       window->query(window, NATIVE_WINDOW_HEIGHT, &dri2_surf->base.Height);
+
+      uint32_t usage = strcmp(dri2_dpy->driver_name, "kms_swrast") == 0
+            ? GRALLOC_USAGE_SW_READ_OFTEN | GRALLOC_USAGE_SW_WRITE_OFTEN
+            : GRALLOC_USAGE_HW_RENDER;
+      native_window_set_usage(window, usage);
    }
 
    config = dri2_get_dri_config(dri2_conf, type,
                                 dri2_surf->base.GLColorspace);
-   if (!config)
+   if (!config) {
+      _eglError(EGL_BAD_MATCH, "Unsupported surfacetype/colorspace configuration");
       goto cleanup_surface;
+   }
 
-   if (dri2_dpy->image_driver)
-      createNewDrawable = dri2_dpy->image_driver->createNewDrawable;
-   else
-      createNewDrawable = dri2_dpy->dri2->createNewDrawable;
-
-   dri2_surf->dri_drawable = (*createNewDrawable)(dri2_dpy->dri_screen, config,
-                                                  dri2_surf);
-   if (dri2_surf->dri_drawable == NULL) {
-      _eglError(EGL_BAD_ALLOC, "createNewDrawable");
+   if (!dri2_create_drawable(dri2_dpy, config, dri2_surf, dri2_surf))
       goto cleanup_surface;
-   }
 
    if (window) {
       window->common.incRef(&window->common);
@@ -360,6 +438,8 @@ droid_create_surface(_EGLDriver *drv, _EGLDisplay *disp, EGLint type,
    return &dri2_surf->base;
 
 cleanup_surface:
+   if (dri2_surf->color_buffers_count)
+      free(dri2_surf->color_buffers);
    free(dri2_surf);
 
    return NULL;
@@ -412,11 +492,26 @@ droid_destroy_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf)
    dri2_dpy->core->destroyDrawable(dri2_surf->dri_drawable);
 
    dri2_fini_surface(surf);
+   free(dri2_surf->color_buffers);
    free(dri2_surf);
 
    return EGL_TRUE;
 }
 
+static EGLBoolean
+droid_swap_interval(_EGLDriver *drv, _EGLDisplay *disp,
+                   _EGLSurface *surf, EGLint interval)
+{
+   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
+   struct ANativeWindow *window = dri2_surf->window;
+
+   if (window->setSwapInterval(window, interval))
+      return EGL_FALSE;
+
+   surf->SwapInterval = interval;
+   return EGL_TRUE;
+}
+
 static int
 update_buffers(struct dri2_egl_surface *dri2_surf)
 {
@@ -483,7 +578,8 @@ get_back_bo(struct dri2_egl_surface *dri2_surf)
    struct dri2_egl_display *dri2_dpy =
       dri2_egl_display(dri2_surf->base.Resource.Display);
    int fourcc, pitch;
-   int offset = 0, fd;
+   int offset = 0, fds[3];
+   unsigned num_fds;
 
    if (dri2_surf->dri_image_back)
       return 0;
@@ -494,8 +590,8 @@ get_back_bo(struct dri2_egl_surface *dri2_surf)
          return -1;
       }
 
-      fd = get_native_buffer_fd(dri2_surf->buffer);
-      if (fd < 0) {
+      num_fds = get_native_buffer_fds(dri2_surf->buffer, fds);
+      if (num_fds == 0) {
          _eglLog(_EGL_WARNING, "Could not get native buffer FD");
          return -1;
       }
@@ -516,8 +612,8 @@ get_back_bo(struct dri2_egl_surface *dri2_surf)
                                              dri2_surf->base.Width,
                                              dri2_surf->base.Height,
                                              fourcc,
-                                             &fd,
-                                             1,
+                                             fds,
+                                             num_fds,
                                              &pitch,
                                              &offset,
                                              dri2_surf);
@@ -567,6 +663,21 @@ droid_image_get_buffers(__DRIdrawable *driDrawable,
    if (update_buffers(dri2_surf) < 0)
       return 0;
 
+   if (_eglSurfaceInSharedBufferMode(&dri2_surf->base)) {
+      if (get_back_bo(dri2_surf) < 0)
+         return 0;
+
+      /* We have dri_image_back because this is a window surface and
+       * get_back_bo() succeeded.
+       */
+      assert(dri2_surf->dri_image_back);
+      images->back = dri2_surf->dri_image_back;
+      images->image_mask |= __DRI_IMAGE_BUFFER_SHARED;
+
+      /* There exists no accompanying back nor front buffer. */
+      return 1;
+   }
+
    if (buffer_mask & __DRI_IMAGE_BUFFER_FRONT) {
       if (get_front_bo(dri2_surf, format) < 0)
          return 0;
@@ -609,11 +720,22 @@ droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 {
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
+   const bool has_mutable_rb = _eglSurfaceHasMutableRenderBuffer(draw);
 
-   if (dri2_surf->base.Type != EGL_WINDOW_BIT)
+   /* From the EGL_KHR_mutable_render_buffer spec (v12):
+    *
+    *    If surface is a single-buffered window, pixmap, or pbuffer surface
+    *    for which there is no pending change to the EGL_RENDER_BUFFER
+    *    attribute, eglSwapBuffers has no effect.
+    */
+   if (has_mutable_rb &&
+       draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER &&
+       draw->ActiveRenderBuffer == EGL_SINGLE_BUFFER) {
+      _eglLog(_EGL_DEBUG, "%s: remain in shared buffer mode", __func__);
       return EGL_TRUE;
+   }
 
-   for (int i = 0; i < ARRAY_SIZE(dri2_surf->color_buffers); i++) {
+   for (int i = 0; i < dri2_surf->color_buffers_count; i++) {
       if (dri2_surf->color_buffers[i].age > 0)
          dri2_surf->color_buffers[i].age++;
    }
@@ -637,55 +759,31 @@ droid_swap_buffers(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *draw)
 
    dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
 
-   return EGL_TRUE;
-}
-
-#if ANDROID_API_LEVEL >= 23
-static EGLBoolean
-droid_set_damage_region(_EGLDriver *drv,
-                        _EGLDisplay *disp,
-                        _EGLSurface *draw, const EGLint* rects, EGLint n_rects)
-{
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
-   struct dri2_egl_surface *dri2_surf = dri2_egl_surface(draw);
-   android_native_rect_t* droid_rects = NULL;
-   int ret;
-
-   if (n_rects == 0)
-      return EGL_TRUE;
+   /* Update the shared buffer mode */
+   if (has_mutable_rb &&
+       draw->ActiveRenderBuffer != draw->RequestedRenderBuffer) {
+       bool mode = (draw->RequestedRenderBuffer == EGL_SINGLE_BUFFER);
+      _eglLog(_EGL_DEBUG, "%s: change to shared buffer mode %d",
+              __func__, mode);
 
-   droid_rects = malloc(n_rects * sizeof(android_native_rect_t));
-   if (droid_rects == NULL)
-     return _eglError(EGL_BAD_ALLOC, "eglSetDamageRegionKHR");
-
-   for (EGLint num_drects = 0; num_drects < n_rects; num_drects++) {
-      EGLint i = num_drects * 4;
-      droid_rects[num_drects].left = rects[i];
-      droid_rects[num_drects].bottom = rects[i + 1];
-      droid_rects[num_drects].right = rects[i] + rects[i + 2];
-      droid_rects[num_drects].top = rects[i + 1] + rects[i + 3];
+      if (!droid_set_shared_buffer_mode(disp, draw, mode))
+         return EGL_FALSE;
+      draw->ActiveRenderBuffer = draw->RequestedRenderBuffer;
    }
 
-   /*
-    * XXX/TODO: Need to check for other return values
-    */
-
-   ret = native_window_set_surface_damage(dri2_surf->window, droid_rects, n_rects);
-   free(droid_rects);
-
-   return ret == 0 ? EGL_TRUE : EGL_FALSE;
+   return EGL_TRUE;
 }
-#endif
 
 static _EGLImage *
-droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
-                                     struct ANativeWindowBuffer *buf, int fd)
+droid_create_image_from_prime_fds_yuv(_EGLDisplay *disp, _EGLContext *ctx,
+                                     struct ANativeWindowBuffer *buf,
+                                     int num_fds, int fds[3])
 {
    struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    struct android_ycbcr ycbcr;
    size_t offsets[3];
    size_t pitches[3];
-   int is_ycrcb;
+   enum chroma_order chroma_order;
    int fourcc;
    int ret;
 
@@ -698,7 +796,7 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
    ret = dri2_dpy->gralloc->lock_ycbcr(dri2_dpy->gralloc, buf->handle,
                                        0, 0, 0, 0, 0, &ycbcr);
    if (ret) {
-      /* HACK: See droid_create_image_from_prime_fd() and
+      /* HACK: See droid_create_image_from_prime_fds() and
        * https://issuetracker.google.com/32077885.*/
       if (buf->format == HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED)
          return NULL;
@@ -713,11 +811,12 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
     * so they can be interpreted as offsets. */
    offsets[0] = (size_t)ycbcr.y;
    /* We assume here that all the planes are located in one DMA-buf. */
-   is_ycrcb = (size_t)ycbcr.cr < (size_t)ycbcr.cb;
-   if (is_ycrcb) {
+   if ((size_t)ycbcr.cr < (size_t)ycbcr.cb) {
+      chroma_order = YCrCb;
       offsets[1] = (size_t)ycbcr.cr;
       offsets[2] = (size_t)ycbcr.cb;
    } else {
+      chroma_order = YCbCr;
       offsets[1] = (size_t)ycbcr.cb;
       offsets[2] = (size_t)ycbcr.cr;
    }
@@ -731,23 +830,35 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
 
    /* .chroma_step is the byte distance between the same chroma channel
     * values of subsequent pixels, assumed to be the same for Cb and Cr. */
-   fourcc = get_fourcc_yuv(buf->format, is_ycrcb, ycbcr.chroma_step);
+   fourcc = get_fourcc_yuv(buf->format, chroma_order, ycbcr.chroma_step);
    if (fourcc == -1) {
-      _eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, is_ycrcb = %d, chroma_step = %d",
-              buf->format, is_ycrcb, ycbcr.chroma_step);
+      _eglLog(_EGL_WARNING, "unsupported YUV format, native = %x, chroma_order = %s, chroma_step = %d",
+              buf->format, chroma_order == YCbCr ? "YCbCr" : "YCrCb", ycbcr.chroma_step);
       return NULL;
    }
 
+   /*
+    * Since this is EGL_NATIVE_BUFFER_ANDROID don't assume that
+    * the single-fd case cannot happen.  So handle eithe single
+    * fd or fd-per-plane case:
+    */
+   if (num_fds == 1) {
+      fds[2] = fds[1] = fds[0];
+   } else {
+      int expected_planes = (ycbcr.chroma_step == 2) ? 2 : 3;
+      assert(num_fds == expected_planes);
+   }
+
    if (ycbcr.chroma_step == 2) {
       /* Semi-planar Y + CbCr or Y + CrCb format. */
       const EGLint attr_list_2plane[] = {
          EGL_WIDTH, buf->width,
          EGL_HEIGHT, buf->height,
          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
-         EGL_DMA_BUF_PLANE0_FD_EXT, fd,
+         EGL_DMA_BUF_PLANE0_FD_EXT, fds[0],
          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
-         EGL_DMA_BUF_PLANE1_FD_EXT, fd,
+         EGL_DMA_BUF_PLANE1_FD_EXT, fds[1],
          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
          EGL_NONE, 0
@@ -760,13 +871,13 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
          EGL_WIDTH, buf->width,
          EGL_HEIGHT, buf->height,
          EGL_LINUX_DRM_FOURCC_EXT, fourcc,
-         EGL_DMA_BUF_PLANE0_FD_EXT, fd,
+         EGL_DMA_BUF_PLANE0_FD_EXT, fds[0],
          EGL_DMA_BUF_PLANE0_PITCH_EXT, pitches[0],
          EGL_DMA_BUF_PLANE0_OFFSET_EXT, offsets[0],
-         EGL_DMA_BUF_PLANE1_FD_EXT, fd,
+         EGL_DMA_BUF_PLANE1_FD_EXT, fds[1],
          EGL_DMA_BUF_PLANE1_PITCH_EXT, pitches[1],
          EGL_DMA_BUF_PLANE1_OFFSET_EXT, offsets[1],
-         EGL_DMA_BUF_PLANE2_FD_EXT, fd,
+         EGL_DMA_BUF_PLANE2_FD_EXT, fds[2],
          EGL_DMA_BUF_PLANE2_PITCH_EXT, pitches[2],
          EGL_DMA_BUF_PLANE2_OFFSET_EXT, offsets[2],
          EGL_NONE, 0
@@ -777,15 +888,15 @@ droid_create_image_from_prime_fd_yuv(_EGLDisplay *disp, _EGLContext *ctx,
 }
 
 static _EGLImage *
-droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
-                                 struct ANativeWindowBuffer *buf, int fd)
+droid_create_image_from_prime_fds(_EGLDisplay *disp, _EGLContext *ctx,
+                                  struct ANativeWindowBuffer *buf, int num_fds, int fds[3])
 {
    unsigned int pitch;
 
    if (is_yuv(buf->format)) {
       _EGLImage *image;
 
-      image = droid_create_image_from_prime_fd_yuv(disp, ctx, buf, fd);
+      image = droid_create_image_from_prime_fds_yuv(disp, ctx, buf, num_fds, fds);
       /*
        * HACK: https://issuetracker.google.com/32077885
        * There is no API available to properly query the IMPLEMENTATION_DEFINED
@@ -797,6 +908,13 @@ droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
          return image;
    }
 
+   /*
+    * Non-YUV formats could *also* have multiple planes, such as ancillary
+    * color compression state buffer, but the rest of the code isn't ready
+    * yet to deal with modifiers:
+    */
+   assert(num_fds == 1);
+
    const int fourcc = get_fourcc(buf->format);
    if (fourcc == -1) {
       _eglError(EGL_BAD_PARAMETER, "eglCreateEGLImageKHR");
@@ -813,7 +931,7 @@ droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
       EGL_WIDTH, buf->width,
       EGL_HEIGHT, buf->height,
       EGL_LINUX_DRM_FOURCC_EXT, fourcc,
-      EGL_DMA_BUF_PLANE0_FD_EXT, fd,
+      EGL_DMA_BUF_PLANE0_FD_EXT, fds[0],
       EGL_DMA_BUF_PLANE0_PITCH_EXT, pitch,
       EGL_DMA_BUF_PLANE0_OFFSET_EXT, 0,
       EGL_NONE, 0
@@ -822,6 +940,27 @@ droid_create_image_from_prime_fd(_EGLDisplay *disp, _EGLContext *ctx,
    return dri2_create_image_dma_buf(disp, ctx, NULL, attr_list);
 }
 
+#ifdef HAVE_DRM_GRALLOC
+static int get_format(int format)
+{
+   switch (format) {
+   case HAL_PIXEL_FORMAT_BGRA_8888: return __DRI_IMAGE_FORMAT_ARGB8888;
+   case HAL_PIXEL_FORMAT_RGB_565:   return __DRI_IMAGE_FORMAT_RGB565;
+   case HAL_PIXEL_FORMAT_RGBA_8888: return __DRI_IMAGE_FORMAT_ABGR8888;
+   case HAL_PIXEL_FORMAT_IMPLEMENTATION_DEFINED:
+      /*
+       * HACK: Hardcode this to RGBX_8888 as per cros_gralloc hack.
+       * TODO: Revert this once https://issuetracker.google.com/32077885 is fixed.
+       */
+   case HAL_PIXEL_FORMAT_RGBX_8888: return __DRI_IMAGE_FORMAT_XBGR8888;
+   case HAL_PIXEL_FORMAT_RGBA_FP16: return __DRI_IMAGE_FORMAT_ABGR16161616F;
+   case HAL_PIXEL_FORMAT_RGBA_1010102: return __DRI_IMAGE_FORMAT_ABGR2101010;
+   default:
+      _eglLog(_EGL_WARNING, "unsupported native buffer format 0x%x", format);
+   }
+   return -1;
+}
+
 static _EGLImage *
 droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
                              struct ANativeWindowBuffer *buf)
@@ -865,9 +1004,10 @@ droid_create_image_from_name(_EGLDisplay *disp, _EGLContext *ctx,
 
    return &dri2_img->base;
 }
+#endif /* HAVE_DRM_GRALLOC */
 
 static EGLBoolean
-droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
+droid_query_surface(_EGLDriver *drv, _EGLDisplay *disp, _EGLSurface *surf,
                     EGLint attribute, EGLint *value)
 {
    struct dri2_egl_surface *dri2_surf = dri2_egl_surface(surf);
@@ -889,7 +1029,7 @@ droid_query_surface(_EGLDriver *drv, _EGLDisplay *dpy, _EGLSurface *surf,
       default:
          break;
    }
-   return _eglQuerySurface(drv, dpy, surf, attribute, value);
+   return _eglQuerySurface(drv, disp, surf, attribute, value);
 }
 
 static _EGLImage *
@@ -897,7 +1037,8 @@ dri2_create_image_android_native_buffer(_EGLDisplay *disp,
                                         _EGLContext *ctx,
                                         struct ANativeWindowBuffer *buf)
 {
-   int fd;
+   int fds[3];
+   unsigned num_fds;
 
    if (ctx != NULL) {
       /* From the EGL_ANDROID_image_native_buffer spec:
@@ -917,11 +1058,15 @@ dri2_create_image_android_native_buffer(_EGLDisplay *disp,
       return NULL;
    }
 
-   fd = get_native_buffer_fd(buf);
-   if (fd >= 0)
-      return droid_create_image_from_prime_fd(disp, ctx, buf, fd);
+   num_fds = get_native_buffer_fds(buf, fds);
+   if (num_fds > 0)
+      return droid_create_image_from_prime_fds(disp, ctx, buf, num_fds, fds);
 
+#ifdef HAVE_DRM_GRALLOC
    return droid_create_image_from_name(disp, ctx, buf);
+#else
+   return NULL;
+#endif
 }
 
 static _EGLImage *
@@ -943,6 +1088,7 @@ droid_flush_front_buffer(__DRIdrawable * driDrawable, void *loaderPrivate)
 {
 }
 
+#ifdef HAVE_DRM_GRALLOC
 static int
 droid_get_buffers_parse_attachments(struct dri2_egl_surface *dri2_surf,
                                     unsigned int *attachments, int count)
@@ -1018,6 +1164,7 @@ droid_get_buffers_with_format(__DRIdrawable * driDrawable,
 
    return dri2_surf->buffers;
 }
+#endif /* HAVE_DRM_GRALLOC */
 
 static unsigned
 droid_get_capability(void *loaderPrivate, enum dri_loader_cap cap)
@@ -1032,17 +1179,21 @@ droid_get_capability(void *loaderPrivate, enum dri_loader_cap cap)
 }
 
 static EGLBoolean
-droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
+droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *disp)
 {
-   struct dri2_egl_display *dri2_dpy = dri2_egl_display(dpy);
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
    static const struct {
       int format;
-      unsigned int rgba_masks[4];
+      int rgba_shifts[4];
+      unsigned int rgba_sizes[4];
    } visuals[] = {
-      { HAL_PIXEL_FORMAT_RGBA_8888, { 0x000000ff, 0x0000ff00, 0x00ff0000, 0xff000000 } },
-      { HAL_PIXEL_FORMAT_RGBX_8888, { 0x000000ff, 0x0000ff00, 0x00ff0000, 0x00000000 } },
-      { HAL_PIXEL_FORMAT_RGB_565,   { 0x0000f800, 0x000007e0, 0x0000001f, 0x00000000 } },
-      { HAL_PIXEL_FORMAT_BGRA_8888, { 0x00ff0000, 0x0000ff00, 0x000000ff, 0xff000000 } },
+      { HAL_PIXEL_FORMAT_RGBA_8888, { 0, 8, 16, 24 }, { 8, 8, 8, 8 } },
+      { HAL_PIXEL_FORMAT_RGBX_8888, { 0, 8, 16, -1 }, { 8, 8, 8, 0 } },
+      { HAL_PIXEL_FORMAT_RGB_565,   { 11, 5, 0, -1 }, { 5, 6, 5, 0 } },
+      /* This must be after HAL_PIXEL_FORMAT_RGBA_8888, we only keep BGRA
+       * visual if it turns out RGBA visual is not available.
+       */
+      { HAL_PIXEL_FORMAT_BGRA_8888, { 16, 8, 0, 24 }, { 8, 8, 8, 8 } },
    };
 
    unsigned int format_count[ARRAY_SIZE(visuals)] = { 0 };
@@ -1066,7 +1217,13 @@ droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
     * (chadversary) testing on Android Nougat, this was good enough to pacify
     * the buggy clients.
     */
+   bool has_rgba = false;
    for (int i = 0; i < ARRAY_SIZE(visuals); i++) {
+      /* Only enable BGRA configs when RGBA is not available. BGRA configs are
+       * buggy on stock Android.
+       */
+      if (visuals[i].format == HAL_PIXEL_FORMAT_BGRA_8888 && has_rgba)
+         continue;
       for (int j = 0; dri2_dpy->driver_configs[j]; j++) {
          const EGLint surface_type = EGL_WINDOW_BIT | EGL_PBUFFER_BIT;
 
@@ -1079,15 +1236,17 @@ droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
          };
 
          struct dri2_egl_config *dri2_conf =
-            dri2_add_config(dpy, dri2_dpy->driver_configs[j],
+            dri2_add_config(disp, dri2_dpy->driver_configs[j],
                             config_count + 1, surface_type, config_attrs,
-                            visuals[i].rgba_masks);
+                            visuals[i].rgba_shifts, visuals[i].rgba_sizes);
          if (dri2_conf) {
             if (dri2_conf->base.ConfigID == config_count + 1)
                config_count++;
             format_count[i]++;
          }
       }
+      if (visuals[i].format == HAL_PIXEL_FORMAT_RGBA_8888 && format_count[i])
+         has_rgba = true;
    }
 
    for (int i = 0; i < ARRAY_SIZE(format_count); i++) {
@@ -1100,47 +1259,21 @@ droid_add_configs_for_visuals(_EGLDriver *drv, _EGLDisplay *dpy)
    return (config_count != 0);
 }
 
-static int
-droid_open_device(struct dri2_egl_display *dri2_dpy)
-{
-   int fd = -1, err = -EINVAL;
-
-   if (dri2_dpy->gralloc->perform)
-         err = dri2_dpy->gralloc->perform(dri2_dpy->gralloc,
-                                          GRALLOC_MODULE_PERFORM_GET_DRM_FD,
-                                          &fd);
-   if (err || fd < 0) {
-      _eglLog(_EGL_WARNING, "fail to get drm fd");
-      fd = -1;
-   }
-
-   return (fd >= 0) ? fcntl(fd, F_DUPFD_CLOEXEC, 3) : -1;
-}
-
 static const struct dri2_egl_display_vtbl droid_display_vtbl = {
    .authenticate = NULL,
    .create_window_surface = droid_create_window_surface,
-   .create_pixmap_surface = dri2_fallback_create_pixmap_surface,
    .create_pbuffer_surface = droid_create_pbuffer_surface,
    .destroy_surface = droid_destroy_surface,
    .create_image = droid_create_image_khr,
    .swap_buffers = droid_swap_buffers,
-   .swap_buffers_with_damage = dri2_fallback_swap_buffers_with_damage, /* Android implements the function */
-   .swap_buffers_region = dri2_fallback_swap_buffers_region,
-#if ANDROID_API_LEVEL >= 23
-   .set_damage_region = droid_set_damage_region,
-#else
-   .set_damage_region = dri2_fallback_set_damage_region,
-#endif
-   .post_sub_buffer = dri2_fallback_post_sub_buffer,
-   .copy_buffers = dri2_fallback_copy_buffers,
+   .swap_interval = droid_swap_interval,
    .query_buffer_age = droid_query_buffer_age,
    .query_surface = droid_query_surface,
-   .create_wayland_buffer_from_image = dri2_fallback_create_wayland_buffer_from_image,
-   .get_sync_values = dri2_fallback_get_sync_values,
    .get_dri_drawable = dri2_surface_get_dri_drawable,
+   .set_shared_buffer_mode = droid_set_shared_buffer_mode,
 };
 
+#ifdef HAVE_DRM_GRALLOC
 static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
    .base = { __DRI_DRI2_LOADER, 4 },
 
@@ -1150,6 +1283,17 @@ static const __DRIdri2LoaderExtension droid_dri2_loader_extension = {
    .getCapability        = droid_get_capability,
 };
 
+static const __DRIextension *droid_dri2_loader_extensions[] = {
+   &droid_dri2_loader_extension.base,
+   &image_lookup_extension.base,
+   &use_invalidate.base,
+   /* No __DRI_MUTABLE_RENDER_BUFFER_LOADER because it requires
+    * __DRI_IMAGE_LOADER.
+    */
+   NULL,
+};
+#endif /* HAVE_DRM_GRALLOC */
+
 static const __DRIimageLoaderExtension droid_image_loader_extension = {
    .base = { __DRI_IMAGE_LOADER, 2 },
 
@@ -1158,32 +1302,300 @@ static const __DRIimageLoaderExtension droid_image_loader_extension = {
    .getCapability       = droid_get_capability,
 };
 
-static const __DRIextension *droid_dri2_loader_extensions[] = {
-   &droid_dri2_loader_extension.base,
-   &image_lookup_extension.base,
-   &use_invalidate.base,
-   NULL,
+static void
+droid_display_shared_buffer(__DRIdrawable *driDrawable, int fence_fd,
+                            void *loaderPrivate)
+{
+   struct dri2_egl_surface *dri2_surf = loaderPrivate;
+   struct ANativeWindowBuffer *old_buffer UNUSED = dri2_surf->buffer;
+
+   if (!_eglSurfaceInSharedBufferMode(&dri2_surf->base)) {
+      _eglLog(_EGL_WARNING, "%s: internal error: buffer is not shared",
+              __func__);
+      return;
+   }
+
+   if (fence_fd >= 0) {
+      /* The driver's fence is more recent than the surface's out fence, if it
+       * exists at all. So use the driver's fence.
+       */
+      if (dri2_surf->out_fence_fd >= 0) {
+         close(dri2_surf->out_fence_fd);
+         dri2_surf->out_fence_fd = -1;
+      }
+   } else if (dri2_surf->out_fence_fd >= 0) {
+      fence_fd = dri2_surf->out_fence_fd;
+      dri2_surf->out_fence_fd = -1;
+   }
+
+   if (dri2_surf->window->queueBuffer(dri2_surf->window, dri2_surf->buffer,
+                                      fence_fd)) {
+      _eglLog(_EGL_WARNING, "%s: ANativeWindow::queueBuffer failed", __func__);
+      close(fence_fd);
+      return;
+   }
+
+   fence_fd = -1;
+
+   if (dri2_surf->window->dequeueBuffer(dri2_surf->window, &dri2_surf->buffer,
+                                        &fence_fd)) {
+      /* Tear down the surface because it no longer has a back buffer. */
+      struct dri2_egl_display *dri2_dpy =
+         dri2_egl_display(dri2_surf->base.Resource.Display);
+
+      _eglLog(_EGL_WARNING, "%s: ANativeWindow::dequeueBuffer failed", __func__);
+
+      dri2_surf->base.Lost = true;
+      dri2_surf->buffer = NULL;
+      dri2_surf->back = NULL;
+
+      if (dri2_surf->dri_image_back) {
+         dri2_dpy->image->destroyImage(dri2_surf->dri_image_back);
+         dri2_surf->dri_image_back = NULL;
+      }
+
+      dri2_dpy->flush->invalidate(dri2_surf->dri_drawable);
+      return;
+   }
+
+   if (fence_fd < 0)
+      return;
+
+   /* Access to the buffer is controlled by a sync fence. Block on it.
+    *
+    * Ideally, we would submit the fence to the driver, and the driver would
+    * postpone command execution until it signalled. But DRI lacks API for
+    * that (as of 2018-04-11).
+    *
+    *  SYNC_IOC_WAIT waits forever if timeout < 0
+    */
+   sync_wait(fence_fd, -1);
+   close(fence_fd);
+}
+
+static const __DRImutableRenderBufferLoaderExtension droid_mutable_render_buffer_extension = {
+   .base = { __DRI_MUTABLE_RENDER_BUFFER_LOADER, 1 },
+   .displaySharedBuffer = droid_display_shared_buffer,
 };
 
 static const __DRIextension *droid_image_loader_extensions[] = {
    &droid_image_loader_extension.base,
    &image_lookup_extension.base,
    &use_invalidate.base,
+   &droid_mutable_render_buffer_extension.base,
    NULL,
 };
 
-EGLBoolean
-dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
+static EGLBoolean
+droid_load_driver(_EGLDisplay *disp, bool swrast)
 {
-   struct dri2_egl_display *dri2_dpy;
+   struct dri2_egl_display *dri2_dpy = disp->DriverData;
    const char *err;
-   int ret;
 
-   /* Not supported yet */
-   if (disp->Options.ForceSoftware)
+   dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
+   if (dri2_dpy->driver_name == NULL)
+      return false;
+
+#ifdef HAVE_DRM_GRALLOC
+   /* Handle control nodes using __DRI_DRI2_LOADER extension and GEM names
+    * for backwards compatibility with drm_gralloc. (Do not use on new
+    * systems.) */
+   dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
+   if (!dri2_load_driver(disp)) {
+      err = "DRI2: failed to load driver";
+      goto error;
+   }
+#else
+   if (swrast) {
+      /* Use kms swrast only with vgem / virtio_gpu.
+       * virtio-gpu fallbacks to software rendering when 3D features
+       * are unavailable since 6c5ab.
+       */
+      if (strcmp(dri2_dpy->driver_name, "vgem") == 0 ||
+          strcmp(dri2_dpy->driver_name, "virtio_gpu") == 0) {
+         free(dri2_dpy->driver_name);
+         dri2_dpy->driver_name = strdup("kms_swrast");
+      } else {
+         err = "DRI3: failed to find software capable driver";
+         goto error;
+      }
+   }
+
+   dri2_dpy->loader_extensions = droid_image_loader_extensions;
+   if (!dri2_load_driver_dri3(disp)) {
+      err = "DRI3: failed to load driver";
+      goto error;
+   }
+#endif
+
+   return true;
+
+error:
+   free(dri2_dpy->driver_name);
+   dri2_dpy->driver_name = NULL;
+   return false;
+}
+
+static void
+droid_unload_driver(_EGLDisplay *disp)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+
+   dlclose(dri2_dpy->driver);
+   dri2_dpy->driver = NULL;
+   free(dri2_dpy->driver_name);
+   dri2_dpy->driver_name = NULL;
+}
+
+static int
+droid_filter_device(_EGLDisplay *disp, int fd, const char *vendor)
+{
+   drmVersionPtr ver = drmGetVersion(fd);
+   if (!ver)
+      return -1;
+
+   if (strcmp(vendor, ver->name) != 0) {
+      drmFreeVersion(ver);
+      return -1;
+   }
+
+   drmFreeVersion(ver);
+   return 0;
+}
+
+static EGLBoolean
+droid_probe_device(_EGLDisplay *disp, bool swrast)
+{
+  /* Check that the device is supported, by attempting to:
+   * - load the dri module
+   * - and, create a screen
+   */
+   if (!droid_load_driver(disp, swrast))
+      return EGL_FALSE;
+
+   if (!dri2_create_screen(disp)) {
+      _eglLog(_EGL_WARNING, "DRI2: failed to create screen");
+      droid_unload_driver(disp);
+      return EGL_FALSE;
+   }
+   return EGL_TRUE;
+}
+
+#ifdef HAVE_DRM_GRALLOC
+static EGLBoolean
+droid_open_device(_EGLDisplay *disp, bool swrast)
+{
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   int fd = -1, err = -EINVAL;
+
+   if (swrast)
+      return EGL_FALSE;
+
+   if (dri2_dpy->gralloc->perform)
+      err = dri2_dpy->gralloc->perform(dri2_dpy->gralloc,
+                                       GRALLOC_MODULE_PERFORM_GET_DRM_FD,
+                                       &fd);
+   if (err || fd < 0) {
+      _eglLog(_EGL_WARNING, "fail to get drm fd");
+      return EGL_FALSE;
+   }
+
+   dri2_dpy->fd = os_dupfd_cloexec(fd);
+   if (dri2_dpy->fd < 0)
+      return EGL_FALSE;
+
+   if (drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER)
+      return EGL_FALSE;
+
+   return droid_probe_device(disp, swrast);
+}
+#else
+static EGLBoolean
+droid_open_device(_EGLDisplay *disp, bool swrast)
+{
+#define MAX_DRM_DEVICES 64
+   struct dri2_egl_display *dri2_dpy = dri2_egl_display(disp);
+   drmDevicePtr device, devices[MAX_DRM_DEVICES] = { NULL };
+   int num_devices;
+
+   char *vendor_name = NULL;
+   char vendor_buf[PROPERTY_VALUE_MAX];
+
+#ifdef EGL_FORCE_RENDERNODE
+   const unsigned node_type = DRM_NODE_RENDER;
+#else
+   const unsigned node_type = swrast ? DRM_NODE_PRIMARY : DRM_NODE_RENDER;
+#endif
+
+   if (property_get("drm.gpu.vendor_name", vendor_buf, NULL) > 0)
+      vendor_name = vendor_buf;
+
+   num_devices = drmGetDevices2(0, devices, ARRAY_SIZE(devices));
+   if (num_devices < 0)
+      return EGL_FALSE;
+
+   for (int i = 0; i < num_devices; i++) {
+      device = devices[i];
+
+      if (!(device->available_nodes & (1 << node_type)))
+         continue;
+
+      dri2_dpy->fd = loader_open_device(device->nodes[node_type]);
+      if (dri2_dpy->fd < 0) {
+         _eglLog(_EGL_WARNING, "%s() Failed to open DRM device %s",
+                 __func__, device->nodes[node_type]);
+         continue;
+      }
+
+      /* If a vendor is explicitly provided, we use only that.
+       * Otherwise we fall-back the first device that is supported.
+       */
+      if (vendor_name) {
+         if (droid_filter_device(disp, dri2_dpy->fd, vendor_name)) {
+            /* Device does not match - try next device */
+            close(dri2_dpy->fd);
+            dri2_dpy->fd = -1;
+            continue;
+         }
+         /* If the requested device matches - use it. Regardless if
+          * init fails, do not fall-back to any other device.
+          */
+         if (!droid_probe_device(disp, false)) {
+            close(dri2_dpy->fd);
+            dri2_dpy->fd = -1;
+         }
+
+         break;
+      }
+      if (droid_probe_device(disp, swrast))
+         break;
+
+      /* No explicit request - attempt the next device */
+      close(dri2_dpy->fd);
+      dri2_dpy->fd = -1;
+   }
+   drmFreeDevices(devices, num_devices);
+
+   if (dri2_dpy->fd < 0) {
+      _eglLog(_EGL_WARNING, "Failed to open %s DRM device",
+            vendor_name ? "desired": "any");
       return EGL_FALSE;
+   }
+
+   return EGL_TRUE;
+#undef MAX_DRM_DEVICES
+}
 
-   loader_set_logger(_eglLog);
+#endif
+
+EGLBoolean
+dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *disp)
+{
+   _EGLDevice *dev;
+   bool device_opened = false;
+   struct dri2_egl_display *dri2_dpy;
+   const char *err;
+   int ret;
 
    dri2_dpy = calloc(1, sizeof(*dri2_dpy));
    if (!dri2_dpy)
@@ -1197,64 +1609,71 @@ dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
       goto cleanup;
    }
 
-   dpy->DriverData = (void *) dri2_dpy;
+   disp->DriverData = (void *) dri2_dpy;
+   if (!disp->Options.ForceSoftware)
+      device_opened = droid_open_device(disp, false);
+   if (!device_opened)
+      device_opened = droid_open_device(disp, true);
 
-   dri2_dpy->fd = droid_open_device(dri2_dpy);
-   if (dri2_dpy->fd < 0) {
+   if (!device_opened) {
       err = "DRI2: failed to open device";
       goto cleanup;
    }
 
-   dri2_dpy->driver_name = loader_get_driver_for_fd(dri2_dpy->fd);
-   if (dri2_dpy->driver_name == NULL) {
-      err = "DRI2: failed to get driver name";
+   dev = _eglAddDevice(dri2_dpy->fd, false);
+   if (!dev) {
+      err = "DRI2: failed to find EGLDevice";
       goto cleanup;
    }
 
-   dri2_dpy->is_render_node = drmGetNodeTypeFromFd(dri2_dpy->fd) == DRM_NODE_RENDER;
+   disp->Device = dev;
 
-   /* render nodes cannot use Gem names, and thus do not support
-    * the __DRI_DRI2_LOADER extension */
-   if (!dri2_dpy->is_render_node) {
-      dri2_dpy->loader_extensions = droid_dri2_loader_extensions;
-      if (!dri2_load_driver(dpy)) {
-         err = "DRI2: failed to load driver";
-         goto cleanup;
-      }
-   } else {
-      dri2_dpy->loader_extensions = droid_image_loader_extensions;
-      if (!dri2_load_driver_dri3(dpy)) {
-         err = "DRI3: failed to load driver";
-         goto cleanup;
-      }
-   }
-
-   if (!dri2_create_screen(dpy)) {
-      err = "DRI2: failed to create screen";
+   if (!dri2_setup_extensions(disp)) {
+      err = "DRI2: failed to setup extensions";
       goto cleanup;
    }
 
-   if (!dri2_setup_extensions(dpy)) {
-      err = "DRI2: failed to setup extensions";
-      goto cleanup;
+   dri2_setup_screen(disp);
+
+   /* We set the maximum swap interval as 1 for Android platform, since it is
+    * the maximum value supported by Android according to the value of
+    * ANativeWindow::maxSwapInterval.
+    */
+   dri2_setup_swap_interval(disp, 1);
+
+   disp->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
+   disp->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
+   disp->Extensions.ANDROID_recordable = EGL_TRUE;
+
+   /* Querying buffer age requires a buffer to be dequeued.  Without
+    * EGL_ANDROID_native_fence_sync, dequeue might call eglClientWaitSync and
+    * result in a deadlock (the lock is already held by eglQuerySurface).
+    */
+   if (disp->Extensions.ANDROID_native_fence_sync) {
+      disp->Extensions.EXT_buffer_age = EGL_TRUE;
+   } else {
+      /* disable KHR_partial_update that might have been enabled in
+       * dri2_setup_screen
+       */
+      disp->Extensions.KHR_partial_update = EGL_FALSE;
    }
 
-   dri2_setup_screen(dpy);
+   disp->Extensions.KHR_image = EGL_TRUE;
+#if ANDROID_API_LEVEL >= 24
+   if (dri2_dpy->mutable_render_buffer &&
+       dri2_dpy->loader_extensions == droid_image_loader_extensions) {
+      disp->Extensions.KHR_mutable_render_buffer = EGL_TRUE;
+   }
+#endif
 
-   if (!droid_add_configs_for_visuals(drv, dpy)) {
+   /* Create configs *after* enabling extensions because presence of DRI
+    * driver extensions can affect the capabilities of EGLConfigs.
+    */
+   if (!droid_add_configs_for_visuals(drv, disp)) {
       err = "DRI2: failed to add configs";
       goto cleanup;
    }
 
-   dpy->Extensions.ANDROID_framebuffer_target = EGL_TRUE;
-   dpy->Extensions.ANDROID_image_native_buffer = EGL_TRUE;
-   dpy->Extensions.ANDROID_recordable = EGL_TRUE;
-   dpy->Extensions.EXT_buffer_age = EGL_TRUE;
-#if ANDROID_API_LEVEL >= 23
-   dpy->Extensions.KHR_partial_update = EGL_TRUE;
-#endif
-   dpy->Extensions.KHR_image = EGL_TRUE;
-
    /* Fill vtbl last to prevent accidentally calling virtual function during
     * initialization.
     */
@@ -1263,6 +1682,6 @@ dri2_initialize_android(_EGLDriver *drv, _EGLDisplay *dpy)
    return EGL_TRUE;
 
 cleanup:
-   dri2_display_destroy(dpy);
+   dri2_display_destroy(disp);
    return _eglError(EGL_NOT_INITIALIZED, err);
 }