libhwc2.1: pixel-display V3 interface implement

Add support for loading the shadow compensation images.

Bug: 184697262
Test: app side can load the correct image
Change-Id: Ie90fd74deb85a927a5fa4fa939dc5e53bea2741b

1 files changed, 22 insertions, 0 deletions

diff --git a/libhwc2.1/pixel-display.cpp b/libhwc2.1/pixel-display.cpp
index 2ee58ef..b6d0eb3 100644
--- a/libhwc2.1/pixel-display.cpp
+++ b/libhwc2.1/pixel-display.cpp
@@ -16,12 +16,15 @@
 
 #include "pixel-display.h"
 
+#include <aidlcommonsupport/NativeHandle.h>
 #include <android-base/logging.h>
 #include <android/binder_manager.h>
 #include <android/binder_process.h>
 #include <sys/types.h>
 #include <utils/Errors.h>
 
+extern int32_t load_png_image(const char *filepath, buffer_handle_t buffer);
+
 using ::aidl::com::google::hardware::pixel::display::Display;
 
 void PixelDisplayInit(ExynosDevice *device) {
@@ -37,6 +40,18 @@ void PixelDisplayInit(ExynosDevice *device) {
     ABinderProcess_startThreadPool();
 }
 
+int32_t readCompensationImage(const aidl::android::hardware::common::NativeHandle &handle,
+                              const std::string &imageName) {
+    ALOGI("setCompensationImageHandle, imageName = %s", imageName.c_str());
+
+    std::string shadowCompensationImage("/mnt/vendor/persist/display/");
+    shadowCompensationImage.append(imageName);
+
+    native_handle_t *clone = makeFromAidl(handle);
+
+    return load_png_image(shadowCompensationImage.c_str(), static_cast<buffer_handle_t>(clone));
+}
+
 namespace aidl {
 namespace com {
 namespace google {
@@ -118,6 +133,13 @@ ndk::ScopedAStatus Display::getLhbmState(bool *_aidl_return) {
     }
     return ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
 }
+
+ndk::ScopedAStatus Display::setCompensationImageHandle(const NativeHandle &native_handle,
+                                                       const std::string &imageName,
+                                                       int *_aidl_return) {
+    *_aidl_return = readCompensationImage(native_handle, imageName);
+    return ndk::ScopedAStatus::ok();
+}
 } // namespace display
 } // namespace pixel
 } // namespace hardware