Add cfg file for control blit

Tracked-On: OAM-132135
Signed-off-by: ZhuChenyanX <[email protected]>

Author: ZhuChenyanX

hwc2_device/HwcLayer.cpp

@@ -272,6 +272,7 @@ static bool InitializeBlitter(BufferInfo &bi) {
 }
 
 void HwcLayer::ImportFb() {
+  FILE * fBlit;
   if (!IsLayerUsableAsDevice() || !buffer_handle_updated_) {
     return;
   }
@@ -301,10 +302,14 @@ void HwcLayer::ImportFb() {
     is_pixel_blend_mode_supported = false;
 
   int kms_fd = parent_->GetPipe().device->GetFd();
-  bool use_shadow_fds = parent_->GetPipe().device->GetName() == "virtio_gpu" &&
+
+	fBlit = fopen("/vendor/etc/dgpu-blit.cfg", "r");
+  bool use_shadow_fds = fBlit && parent_->GetPipe().device->GetName() == "virtio_gpu" &&
       !allow_p2p_ && (intel_dgpu_fd() >= 0) &&
       !virtio_gpu_allow_p2p(kms_fd) && InitializeBlitter(layer_data_.bi.value());
   layer_data_.bi->use_shadow_fds = use_shadow_fds;
+	if (fBlit)
+    fclose(fBlit);
 
   if (allow_p2p_) {
     for (int fd: layer_data_.bi->prime_fds) {