Make ReliableSurface's fallback buffer match ANW size

Bug: b/397754921
Test: cts -m CtsUiRenderingTestCases
Change-Id: Ie5faee78a051bd7b18bbcf62b0d9334964066465

1 files changed, 20 insertions, 4 deletions

diff --git a/libs/hwui/renderthread/ReliableSurface.cpp b/libs/hwui/renderthread/ReliableSurface.cpp
index 64d38b9ef466..01e8010444c0 100644
--- a/libs/hwui/renderthread/ReliableSurface.cpp
+++ b/libs/hwui/renderthread/ReliableSurface.cpp
@@ -149,9 +149,25 @@ ANativeWindowBuffer* ReliableSurface::acquireFallbackBuffer(int error) {
         return AHardwareBuffer_to_ANativeWindowBuffer(mScratchBuffer.get());
     }
 
+    int width = -1;
+    int result = mWindow->query(mWindow, NATIVE_WINDOW_DEFAULT_WIDTH, &width);
+    if (result != OK || width < 0) {
+        ALOGW("Failed to query window default width: %s (%d) value=%d", strerror(-result), result,
+              width);
+        width = 1;
+    }
+
+    int height = -1;
+    result = mWindow->query(mWindow, NATIVE_WINDOW_DEFAULT_HEIGHT, &height);
+    if (result != OK || height < 0) {
+        ALOGW("Failed to query window default height: %s (%d) value=%d", strerror(-result), result,
+              height);
+        height = 1;
+    }
+
     AHardwareBuffer_Desc desc = AHardwareBuffer_Desc{
-            .width = 1,
-            .height = 1,
+            .width = static_cast<uint32_t>(width),
+            .height = static_cast<uint32_t>(height),
             .layers = 1,
             .format = mFormat,
             .usage = mUsage,
@@ -160,9 +176,9 @@ ANativeWindowBuffer* ReliableSurface::acquireFallbackBuffer(int error) {
     };
 
     AHardwareBuffer* newBuffer;
-    int result = AHardwareBuffer_allocate(&desc, &newBuffer);
+    result = AHardwareBuffer_allocate(&desc, &newBuffer);
 
-    if (result != NO_ERROR) {
+    if (result != OK) {
         // Allocate failed, that sucks
         ALOGW("Failed to allocate scratch buffer, error=%d", result);
         return nullptr;