From 7437e26875f549704096b3d272e8239fa503e86d Mon Sep 17 00:00:00 2001
From: John Reck <jreck@google.com>
Date: Wed, 24 Aug 2022 10:50:10 -0400
Subject: Support AHB in AIDL

Bug: 162794619
Test: CtsHardwareTestCases
Change-Id: Ifebea9f82434e171aafd09a5054566fa267ebbb3
Merged-In: Ifebea9f82434e171aafd09a5054566fa267ebbb3
---
 libs/nativewindow/AHardwareBuffer.cpp | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

(limited to 'libs/nativewindow/AHardwareBuffer.cpp')

diff --git a/libs/nativewindow/AHardwareBuffer.cpp b/libs/nativewindow/AHardwareBuffer.cpp
index 4a1784ea0b..435095a29d 100644
--- a/libs/nativewindow/AHardwareBuffer.cpp
+++ b/libs/nativewindow/AHardwareBuffer.cpp
@@ -16,6 +16,8 @@
 
 #define LOG_TAG "AHardwareBuffer"
 
+#include <android/hardware_buffer.h>
+#include <android/hardware_buffer_aidl.h>
 #include <vndk/hardware_buffer.h>
 
 #include <errno.h>
@@ -32,6 +34,9 @@
 #include <android/hardware/graphics/common/1.1/types.h>
 #include <aidl/android/hardware/graphics/common/PixelFormat.h>
 
+// TODO: Better way to handle this
+#include "../binder/ndk/parcel_internal.h"
+
 static constexpr int kFdBufferSize = 128 * sizeof(int);  // 128 ints
 
 using namespace android;
@@ -412,6 +417,25 @@ int AHardwareBuffer_getId(const AHardwareBuffer* buffer, uint64_t* outId) {
     return OK;
 }
 
+binder_status_t AHardwareBuffer_readFromParcel(const AParcel* _Nonnull parcel,
+        AHardwareBuffer* _Nullable* _Nonnull outBuffer) {
+    if (!parcel || !outBuffer) return STATUS_BAD_VALUE;
+    auto buffer = sp<GraphicBuffer>::make();
+    status_t status = parcel->get()->read(*buffer);
+    if (status != STATUS_OK) return status;
+    *outBuffer = AHardwareBuffer_from_GraphicBuffer(buffer.get());
+    AHardwareBuffer_acquire(*outBuffer);
+    return STATUS_OK;
+}
+
+binder_status_t AHardwareBuffer_writeToParcel(const AHardwareBuffer* _Nonnull buffer,
+        AParcel* _Nonnull parcel) {
+    const GraphicBuffer* gb = AHardwareBuffer_to_GraphicBuffer(buffer);
+    if (!gb) return STATUS_BAD_VALUE;
+    if (!parcel) return STATUS_BAD_VALUE;
+    return parcel->get()->write(*gb);
+}
+
 // ----------------------------------------------------------------------------
 // VNDK functions
 // ----------------------------------------------------------------------------
-- 
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