libhwc2.1: Add function to check primary in drm interface

Bug: 154275156

Signed-off-by: HyunKyung Kim <hk310.kim@samsung.com>
Change-Id: Ibc769162d23d764057e40b2c9d91e15fc50c8a2d

2 files changed, 9 insertions, 0 deletions

diff --git a/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.cpp b/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.cpp
index 30dbb78..cccb06c 100644
--- a/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.cpp
+++ b/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.cpp
@@ -15,6 +15,7 @@
  */
 
 #include "ExynosDisplayInterface.h"
+#include "ExynosDisplay.h"
 
 ExynosDisplayInterface::~ExynosDisplayInterface()
 {
@@ -61,3 +62,9 @@ int32_t ExynosDisplayInterface::getReadbackBufferAttributes(
     /* readback is not supported */
     return HWC2_ERROR_UNSUPPORTED;
 }
+
+bool ExynosDisplayInterface::isPrimary()
+{
+    return ((mExynosDisplay != nullptr) &&
+            (mExynosDisplay->mType == HWC_DISPLAY_PRIMARY));
+}
diff --git a/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.h b/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.h
index ec13037..420ea9f 100644
--- a/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.h
+++ b/libhwc2.1/libdisplayinterface/ExynosDisplayInterface.h
@@ -66,6 +66,8 @@ class ExynosDisplayInterface {
         /* HWC 2.3 APIs */
         virtual int32_t getDisplayIdentificationData(uint8_t* __unused outPort,
                 uint32_t* __unused outDataSize, uint8_t* __unused outData) {return 0;}
+
+        bool isPrimary();
     public:
         uint32_t mType = INTERFACE_TYPE_NONE;
 };