end2end_tests: Forward Windows debug messages to stderr

When validation layers are enabled, D3D12 warnings and error
messages are logged to the shared DBWIN_BUFFER segment of memory.
This CL has makes the test environment watch for new events and
logs them to stderr so they show up in the test bot logs. This helps
debug problems in the D3D12 backend which previously just crashed
with a general Device Lost message.

Bug: none
Change-Id: I0eaddf9e16303bd65579e85fe6693bd8cdfbd8da
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/26640
Reviewed-by: Rafael Cintron <rafael.cintron@microsoft.com>
Reviewed-by: Bryan Bernhart <bryan.bernhart@intel.com>
Commit-Queue: Austin Eng <enga@chromium.org>

src/tests/DawnTest.cpp

@@ -24,6 +24,7 @@
 #include "dawn_native/DawnNative.h"
 #include "dawn_wire/WireClient.h"
 #include "dawn_wire/WireServer.h"
+#include "utils/PlatformDebugLogger.h"
 #include "utils/SystemUtils.h"
 #include "utils/TerribleCommandBuffer.h"
 #include "utils/WGPUHelpers.h"
@@ -35,7 +36,7 @@
 #include <sstream>
 #include <unordered_map>
 
-#ifdef DAWN_ENABLE_BACKEND_OPENGL
+#if defined(DAWN_ENABLE_BACKEND_OPENGL)
 #    include "GLFW/glfw3.h"
 #    include "dawn_native/OpenGLBackend.h"
 #endif  // DAWN_ENABLE_BACKEND_OPENGL
@@ -81,7 +82,7 @@ namespace {
 
     DawnTestEnvironment* gTestEnv = nullptr;
 
-}  // namespace
+}  // anonymous namespace
 
 const RGBA8 RGBA8::kZero = RGBA8(0, 0, 0, 0);
 const RGBA8 RGBA8::kBlack = RGBA8(0, 0, 0, 255);
@@ -186,6 +187,11 @@ void DawnTestEnvironment::SetEnvironment(DawnTestEnvironment* env) {
 DawnTestEnvironment::DawnTestEnvironment(int argc, char** argv) {
     ParseArgs(argc, argv);
 
+    if (mEnableBackendValidation) {
+        mPlatformDebugLogger =
+            std::unique_ptr<utils::PlatformDebugLogger>(utils::CreatePlatformDebugLogger());
+    }
+
     // Create a temporary instance to select available and preferred adapters. This is done before
     // test instantiation so GetAvailableAdapterTestParamsForBackends can generate test
     // parameterizations all selected adapters. We drop the instance at the end of this function
@@ -199,6 +205,8 @@ DawnTestEnvironment::DawnTestEnvironment(int argc, char** argv) {
     PrintTestConfigurationAndAdapterInfo();
 }
 
+DawnTestEnvironment::~DawnTestEnvironment() = default;
+
 void DawnTestEnvironment::ParseArgs(int argc, char** argv) {
     size_t argLen = 0;  // Set when parsing --arg=X arguments
     for (int i = 1; i < argc; ++i) {

src/tests/DawnTest.h

@@ -155,6 +155,7 @@ BackendTestConfig VulkanBackend(std::initializer_list<const char*> forceEnabledW
                                 std::initializer_list<const char*> forceDisabledWorkarounds = {});
 
 namespace utils {
+    class PlatformDebugLogger;
     class TerribleCommandBuffer;
 }  // namespace utils
 
@@ -176,7 +177,7 @@ void InitDawnEnd2EndTestEnvironment(int argc, char** argv);
 class DawnTestEnvironment : public testing::Environment {
   public:
     DawnTestEnvironment(int argc, char** argv);
-    ~DawnTestEnvironment() override = default;
+    ~DawnTestEnvironment() override;
 
     static void SetEnvironment(DawnTestEnvironment* env);
 
@@ -219,6 +220,8 @@ class DawnTestEnvironment : public testing::Environment {
     std::string mWireTraceDir;
     std::vector<dawn_native::DeviceType> mDevicePreferences;
     std::vector<TestAdapterProperties> mAdapterProperties;
+
+    std::unique_ptr<utils::PlatformDebugLogger> mPlatformDebugLogger;
 };
 
 class DawnTestBase {