From 69395cd3ff5ef500c2b33991c2ab7284bc010ce9 Mon Sep 17 00:00:00 2001
From: Yiwei Zhang <zzyiwei@google.com>
Date: Wed, 3 Jul 2019 16:55:39 -0700
Subject: GpuStats: track Vulkan apps not doing pre-rotation correctly

Bug: 135210726
Test: adb shell dumpsys gpu
Change-Id: Iff15f0d486b74ca700c12cd960b839ddccebc112
---
 vulkan/libvulkan/swapchain.cpp | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

(limited to 'vulkan/libvulkan')

diff --git a/vulkan/libvulkan/swapchain.cpp b/vulkan/libvulkan/swapchain.cpp
index 761d128d79..e5ac2de705 100644
--- a/vulkan/libvulkan/swapchain.cpp
+++ b/vulkan/libvulkan/swapchain.cpp
@@ -18,6 +18,7 @@
 
 #include <android/hardware/graphics/common/1.0/types.h>
 #include <grallocusage/GrallocUsageConversion.h>
+#include <graphicsenv/GraphicsEnv.h>
 #include <log/log.h>
 #include <sync/sync.h>
 #include <system/window.h>
@@ -1253,6 +1254,15 @@ VkResult CreateSwapchainKHR(VkDevice device,
         return VK_ERROR_SURFACE_LOST_KHR;
     }
 
+    int transform_hint;
+    err = surface.window->query(surface.window.get(),
+                                NATIVE_WINDOW_TRANSFORM_HINT, &transform_hint);
+    if (err != 0) {
+        ALOGE("NATIVE_WINDOW_TRANSFORM_HINT query failed: %s (%d)",
+              strerror(-err), err);
+        return VK_ERROR_SURFACE_LOST_KHR;
+    }
+
     // -- Allocate our Swapchain object --
     // After this point, we must deallocate the swapchain on error.
 
@@ -1356,6 +1366,12 @@ VkResult CreateSwapchainKHR(VkDevice device,
         return result;
     }
 
+    if (transform_hint != swapchain->pre_transform) {
+        // Log that the app is not doing pre-rotation.
+        android::GraphicsEnv::getInstance().setTargetStats(
+            android::GpuStatsInfo::Stats::FALSE_PREROTATION);
+    }
+
     surface.swapchain_handle = HandleFromSwapchain(swapchain);
     *swapchain_handle = surface.swapchain_handle;
     return VK_SUCCESS;
-- 
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