From 0ecfb4e2f86ea1d606aceefdfc67c3c0527d908b Mon Sep 17 00:00:00 2001
From: Milan Burda <miburda@microsoft.com>
Date: Tue, 30 May 2017 19:06:08 +0200
Subject: [PATCH] Add app.getGPUFeatureStatus

---
 atom/browser/api/atom_api_app.cc          | 30 +++++++++++++++++++++++
 atom/browser/api/atom_api_app.h           |  1 +
 docs/api/app.md                           |  4 +++
 docs/api/structures/gpu-feature-status.md | 29 ++++++++++++++++++++++
 4 files changed, 64 insertions(+)
 create mode 100644 docs/api/structures/gpu-feature-status.md

diff --git a/atom/browser/api/atom_api_app.cc b/atom/browser/api/atom_api_app.cc
index d6fe607de496..fd4fe4b79ced 100644
--- a/atom/browser/api/atom_api_app.cc
+++ b/atom/browser/api/atom_api_app.cc
@@ -34,6 +34,7 @@
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/icon_manager.h"
 #include "chrome/common/chrome_paths.h"
+#include "content/browser/gpu/compositor_util.h"
 #include "content/public/browser/browser_accessibility_state.h"
 #include "content/public/browser/browser_child_process_host.h"
 #include "content/public/browser/child_process_data.h"
@@ -1021,6 +1022,34 @@ std::vector<mate::Dictionary> App::GetAppMetrics(v8::Isolate* isolate) {
   return result;
 }
 
+static mate::Dictionary ConvertDictionary(
+    v8::Isolate* isolate, const base::DictionaryValue &dict) {
+  auto result = mate::Dictionary::CreateEmpty(isolate);
+
+  for (base::DictionaryValue::Iterator iterator(dict);
+       !iterator.IsAtEnd();
+       iterator.Advance()) {
+    auto& key = iterator.key();
+    auto& value = iterator.value();
+    if (value.is_string()) {
+      std::string strValue;
+      if (value.GetAsString(&strValue)) {
+        result.Set(key, strValue);
+      }
+    }
+  }
+
+  return result;
+}
+
+mate::Dictionary App::GetGPUFeatureStatus(v8::Isolate* isolate) {
+  if (auto status = content::GetFeatureStatus()) {
+    return ConvertDictionary(isolate, *status);
+  } else {
+    return mate::Dictionary::CreateEmpty(isolate);
+  }
+}
+
 // static
 mate::Handle<App> App::Create(v8::Isolate* isolate) {
   return mate::CreateHandle(isolate, new App(isolate));
@@ -1094,6 +1123,7 @@ void App::BuildPrototype(
                  &App::DisableHardwareAcceleration)
       .SetMethod("getFileIcon", &App::GetFileIcon)
       .SetMethod("getAppMetrics", &App::GetAppMetrics)
+      .SetMethod("getGPUFeatureStatus", &App::GetGPUFeatureStatus)
       // TODO(juturu): Remove in 2.0, deprecate before then with warnings
       .SetMethod("getAppMemoryInfo", &App::GetAppMetrics);
 }
diff --git a/atom/browser/api/atom_api_app.h b/atom/browser/api/atom_api_app.h
index d68b172a7fad..eab1dcdf88ab 100644
--- a/atom/browser/api/atom_api_app.h
+++ b/atom/browser/api/atom_api_app.h
@@ -177,6 +177,7 @@ class App : public AtomBrowserClient::Delegate,
                    mate::Arguments* args);
 
   std::vector<mate::Dictionary> GetAppMetrics(v8::Isolate* isolate);
+  mate::Dictionary GetGPUFeatureStatus(v8::Isolate* isolate);
 
 #if defined(OS_WIN)
   // Get the current Jump List settings.
diff --git a/docs/api/app.md b/docs/api/app.md
index 78d3942985e8..784b20a47301 100644
--- a/docs/api/app.md
+++ b/docs/api/app.md
@@ -771,6 +771,10 @@ Returns [`ProcessMetric[]`](structures/process-metric.md):  Array of `ProcessMet
 
 Returns [`ProcessMetric[]`](structures/process-metric.md):  Array of `ProcessMetric` objects that correspond to memory and cpu usage statistics of all the processes associated with the app.
 
+### `app.getGpuFeatureStatus()`
+
+Returns [`GPUFeatureStatus`](structures/gpu-feature-status.md) - The Graphics Feature Status from `chrome://gpu/`.
+
 ### `app.setBadgeCount(count)` _Linux_ _macOS_
 
 * `count` Integer
diff --git a/docs/api/structures/gpu-feature-status.md b/docs/api/structures/gpu-feature-status.md
new file mode 100644
index 000000000000..f7bf3933d6c4
--- /dev/null
+++ b/docs/api/structures/gpu-feature-status.md
@@ -0,0 +1,29 @@
+# GPUFeatureStatus Object
+
+* `2d_canvas` String - Canvas
+* `flash_3d` String - Flash
+* `flash_stage3d` String - Flash Stage3D
+* `flash_stage3d_baseline` String - Flash Stage3D Baseline profile
+* `gpu_compositing` String - Compositing
+* `multiple_raster_threads` String - Multiple Raster Threads
+* `native_gpu_memory_buffers` String - Native GpuMemoryBuffers
+* `rasterization` String - Rasterization
+* `video_decode` String - Video Decode
+* `video_encode` String - Video Encode
+* `vpx_decode` String - VPx Video Decode
+* `webgl` String - WebGL
+* `webgl2` String - WebGL2
+
+Possible values:
+
+* `disabled_software` - Software only. Hardware acceleration disabled (yellow)
+* `disabled_off` - Disabled (red)
+* `disabled_off_ok` - Disabled (yellow)
+* `unavailable_software` - Software only, hardware acceleration unavailable (yellow)
+* `unavailable_off` - Unavailable (red)
+* `unavailable_off_ok` - Unavailable (yellow)
+* `enabled_readback` - Hardware accelerated but at reduced performance (yellow)
+* `enabled_force` - Hardware accelerated on all pages (green)
+* `enabled` - Hardware accelerated (green)
+* `enabled_on` - Enabled (green)
+* `enabled_force_on` - Force enabled (green)