egl_dri2: add support for Android

Add platform_android.c that supports _EGL_PLAFORM_ANDROID.  It works
with drm_gralloc, where back buffers of windows are backed by GEM
objects.

In Android a native window has a queue of back buffers allocated by the
server, through drm_gralloc.  For each frame, EGL needs to

  dequeue the next back buffer
  render to the buffer
  enqueue the buffer

After enqueuing, the buffer is no longer valid to EGL.  A window has no
depth buffer or other aux buffers.  They need to be allocated locally by
EGL.

Reviewed-by: Benjamin Franzke <[email protected]>
Reviewed-by: Chad Versace <[email protected]>

[olv: with assorted minor changes, mostly suggested during the review]

1 files changed, 10 insertions, 0 deletions

diff --git a/src/egl/drivers/dri2/egl_dri2.c b/src/egl/drivers/dri2/egl_dri2.c
index ba728a1583b..4aa1df056cf 100644
--- a/src/egl/drivers/dri2/egl_dri2.c
+++ b/src/egl/drivers/dri2/egl_dri2.c
@@ -577,6 +577,12 @@ dri2_initialize(_EGLDriver *drv, _EGLDisplay *disp)
       return dri2_initialize_wayland(drv, disp);
 #endif
 #endif
+#ifdef HAVE_ANDROID_PLATFORM
+   case _EGL_PLATFORM_ANDROID:
+      if (disp->Options.TestOnly)
+         return EGL_TRUE;
+      return dri2_initialize_android(drv, disp);
+#endif
 
    default:
       return EGL_FALSE;
@@ -1323,7 +1329,11 @@ dri2_load(_EGLDriver *drv)
 {
    struct dri2_egl_driver *dri2_drv = dri2_egl_driver(drv);
 #ifdef HAVE_SHARED_GLAPI
+#ifdef HAVE_ANDROID_PLATFORM
+   const char *libname = "libglapi.so";
+#else
    const char *libname = "libglapi.so.0";
+#endif
 #else
    /*
     * Both libGL.so and libglapi.so are glapi providers.  There is no way to