[Ozone] Enables overlay render format setting path and by default use UYVY

ui/ozone/platform/drm/gpu/gbm_buffer_base.cc

Index: ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
diff --git a/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc b/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
index 355b0afdc665c17f567182eb3b9859e94080a32f..407f0200b4faa4a6364bfc07be3b02ab18776fe8 100644
--- a/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
+++ b/ui/ozone/platform/drm/gpu/gbm_buffer_base.cc
@@ -11,35 +11,27 @@
 
 namespace ui {
 
-namespace {
-
-// Pixel configuration for the current buffer format.
-// TODO(dnicoara) These will need to change once we query the hardware for
-// supported configurations.
-const uint8_t kColorDepth = 24;
-const uint8_t kPixelDepth = 32;
-
-}  // namespace
-
 GbmBufferBase::GbmBufferBase(const scoped_refptr<DrmDevice>& drm,
                              gbm_bo* bo,
                              bool scanout)
     : drm_(drm), bo_(bo) {
   if (scanout) {
-    if (!drm_->AddFramebuffer(gbm_bo_get_width(bo), gbm_bo_get_height(bo),
-                              kColorDepth, kPixelDepth, gbm_bo_get_stride(bo),
-                              gbm_bo_get_handle(bo).u32, &framebuffer_)) {
-      PLOG(ERROR) << "Failed to register buffer";
-      return;
-    }
-
     fb_pixel_format_ = gbm_bo_get_format(bo);
     if (fb_pixel_format_ == GBM_FORMAT_ARGB8888)
       fb_pixel_format_ = GBM_FORMAT_XRGB8888;
 
-    // For now, we always create a frame buffer of 24 bit color depth and
-    // support only XRGB format.
-    DCHECK(fb_pixel_format_ == GBM_FORMAT_XRGB8888);

[Pawel Osciak, 2015/11/05 10:23:51]

Is it really ok to remove this?

[william.xie1, 2015/11/06 06:56:14]

Done.

+    uint32_t handles[4] = {0};
+    handles[0] = gbm_bo_get_handle(bo).u32;
+    uint32_t strides[4] = {0};
+    strides[0] = gbm_bo_get_stride(bo);
+    uint32_t offsets[4] = {0};
+
+    if (!drm_->AddFramebuffer2(gbm_bo_get_width(bo), gbm_bo_get_height(bo),
+                               fb_pixel_format_, handles, strides, offsets,
+                               &framebuffer_, 0)) {
+      PLOG(ERROR) << "Failed to register buffer";
+      return;
+    }
   }
 }