commit 6ebc46a7c01b22bc19d3c00b493f8d930b15b43a
author Craig Donner <cdonner@google.com> Fri Oct 21 15:23:44 2016 -0700
committer Craig Donner <cdonner@google.com> Fri Nov 11 11:35:06 2016 -0800
tree 6f68e8f1cf2ccde71eece4a037c8e32b4f0cd0b2
parent cd7dedbe69f8c90d351b97b1acea2bb3635b68ca

Add layered buffer support to libui and libgui.

Bug: 31686534
Test: manual
Change-Id: Ia40270701467f4b785660324cad883e7da08989a

libs/ui/Gralloc1.cpp

diff --git a/libs/ui/Gralloc1.cpp b/libs/ui/Gralloc1.cpp
index 4c73ce4..367d1ce 100644
--- a/libs/ui/Gralloc1.cpp
+++ b/libs/ui/Gralloc1.cpp
@@ -77,6 +77,17 @@
             mShimDevice.mDevice, mDeviceId, format, &mFormat);
 }
 
+gralloc1_error_t Descriptor::setLayerCount(uint32_t layerCount)
+{
+    if (mShimDevice.hasCapability(GRALLOC1_CAPABILITY_LAYERED_BUFFERS)) {
+        return setHelper<uint32_t>(mShimDevice.mFunctions.setLayerCount.pfn,
+                mShimDevice.mDevice, mDeviceId, layerCount, &mLayerCount);
+    } else {
+        // Layered buffers are not supported on this device.
+        return GRALLOC1_ERROR_UNSUPPORTED;
+    }
+}
+
 gralloc1_error_t Descriptor::setProducerUsage(gralloc1_producer_usage_t usage)
 {
     return setHelper<uint64_t>(mShimDevice.mFunctions.setProducerUsage.pfn,
@@ -366,6 +377,15 @@
         mFunctions.allocate.load(mDevice, false);
     }
 
+    if (hasCapability(GRALLOC1_CAPABILITY_LAYERED_BUFFERS)) {
+        if (!mFunctions.setLayerCount.load(mDevice, true)) {
+            return false;
+        }
+        if (!mFunctions.getLayerCount.load(mDevice, true)) {
+            return false;
+        }
+    }
+
     return true;
 }