Migrating majority of gamepad from content/browser/ to device/

device/gamepad/raw_input_data_fetcher_win.cc

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#include "content/browser/gamepad/raw_input_data_fetcher_win.h"
+#include "device/gamepad/raw_input_data_fetcher_win.h"
 
 #include <stddef.h>
 
 #include "base/macros.h"
 #include "base/trace_event/trace_event.h"
-#include "content/common/gamepad_hardware_buffer.h"
-#include "content/common/gamepad_messages.h"
 
-namespace content {
+namespace device {
 
 using namespace blink;
 
 namespace {
 
 float NormalizeAxis(long value, long min, long max) {
   return (2.f * (value - min) / static_cast<float>(max - min)) - 1.f;
 }
 
 unsigned long GetBitmask(unsigned short bits) {
   return (1 << bits) - 1;
 }
 
 // From the HID Usage Tables specification.
 USHORT DeviceUsages[] = {
-  0x04,  // Joysticks
-  0x05,  // Gamepads
-  0x08,  // Multi Axis
+    0x04,  // Joysticks
+    0x05,  // Gamepads
+    0x08,  // Multi Axis
 };
 
 const uint32_t kAxisMinimumUsageNumber = 0x30;
 const uint32_t kGameControlsUsagePage = 0x05;
 const uint32_t kButtonUsagePage = 0x09;
 
 }  // namespace
 
-RawGamepadInfo::RawGamepadInfo() {
-}
+RawGamepadInfo::RawGamepadInfo() {}
 
-RawGamepadInfo::~RawGamepadInfo() {
-}
+RawGamepadInfo::~RawGamepadInfo() {}
 
 RawInputDataFetcher::RawInputDataFetcher()
     : hid_dll_(base::FilePath(FILE_PATH_LITERAL("hid.dll"))),
       rawinput_available_(GetHidDllFunctions()),
       filter_xinput_(true),
-      events_monitored_(false) {
-}
+      events_monitored_(false) {}
 
 RawInputDataFetcher::~RawInputDataFetcher() {
   ClearControllers();
   DCHECK(!window_);
   DCHECK(!events_monitored_);
 }
 
 void RawInputDataFetcher::WillDestroyCurrentMessageLoop() {
   StopMonitor();
 }
@@ skipping 21 matching lines @@
       PLOG(ERROR) << "Failed to create the raw input window";
       window_.reset();
       return;
     }
   }
 
   // Register to receive raw HID input.
   std::unique_ptr<RAWINPUTDEVICE[]> devices(
       GetRawInputDevices(RIDEV_INPUTSINK));
   if (!RegisterRawInputDevices(devices.get(), arraysize(DeviceUsages),
-      sizeof(RAWINPUTDEVICE))) {
+                               sizeof(RAWINPUTDEVICE))) {
     PLOG(ERROR) << "RegisterRawInputDevices() failed for RIDEV_INPUTSINK";
     window_.reset();
     return;
   }
 
   // Start observing message loop destruction if we start monitoring the first
   // event.
   if (!events_monitored_)
     base::MessageLoop::current()->AddDestructionObserver(this);
 
   events_monitored_ = true;
 }
 
 void RawInputDataFetcher::StopMonitor() {
   if (!rawinput_available_ || !events_monitored_)
     return;
 
   // Stop receiving raw input.
   DCHECK(window_);
   std::unique_ptr<RAWINPUTDEVICE[]> devices(GetRawInputDevices(RIDEV_REMOVE));
 
   if (!RegisterRawInputDevices(devices.get(), arraysize(DeviceUsages),
-      sizeof(RAWINPUTDEVICE))) {
+                               sizeof(RAWINPUTDEVICE))) {
     PLOG(INFO) << "RegisterRawInputDevices() failed for RIDEV_REMOVE";
   }
 
   events_monitored_ = false;
   window_.reset();
 
   // Stop observing message loop destruction if no event is being monitored.
   base::MessageLoop::current()->RemoveDestructionObserver(this);
 }
 
@@ skipping 14 matching lines @@
   UINT result = GetRawInputDeviceList(NULL, &count, sizeof(RAWINPUTDEVICELIST));
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceList() failed";
     return valid_controllers;
   }
   DCHECK_EQ(0u, result);
 
   std::unique_ptr<RAWINPUTDEVICELIST[]> device_list(
       new RAWINPUTDEVICELIST[count]);
   result = GetRawInputDeviceList(device_list.get(), &count,
-      sizeof(RAWINPUTDEVICELIST));
+                                 sizeof(RAWINPUTDEVICELIST));
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceList() failed";
     return valid_controllers;
   }
   DCHECK_EQ(count, result);
 
   for (UINT i = 0; i < count; ++i) {
     if (device_list[i].dwType == RIM_TYPEHID) {
       HANDLE device_handle = device_list[i].hDevice;
       RawGamepadInfo* gamepad_info = ParseGamepadInfo(device_handle);
@@ skipping 15 matching lines @@
 }
 
 RawGamepadInfo* RawInputDataFetcher::ParseGamepadInfo(HANDLE hDevice) {
   UINT size = 0;
 
   // Do we already have this device in the map?
   if (GetGamepadInfo(hDevice))
     return NULL;
 
   // Query basic device info.
-  UINT result = GetRawInputDeviceInfo(hDevice, RIDI_DEVICEINFO,
-      NULL, &size);
+  UINT result = GetRawInputDeviceInfo(hDevice, RIDI_DEVICEINFO, NULL, &size);
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceInfo() failed";
     return NULL;
   }
   DCHECK_EQ(0u, result);
 
   std::unique_ptr<uint8_t[]> di_buffer(new uint8_t[size]);
   RID_DEVICE_INFO* device_info =
       reinterpret_cast<RID_DEVICE_INFO*>(di_buffer.get());
-  result = GetRawInputDeviceInfo(hDevice, RIDI_DEVICEINFO,
-      di_buffer.get(), &size);
+  result =
+      GetRawInputDeviceInfo(hDevice, RIDI_DEVICEINFO, di_buffer.get(), &size);
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceInfo() failed";
     return NULL;
   }
   DCHECK_EQ(size, result);
 
   // Make sure this device is of a type that we want to observe.
   bool valid_type = false;
   for (USHORT device_usage : DeviceUsages) {
     if (device_info->hid.usUsage == device_usage) {
       valid_type = true;
       break;
     }
   }
 
   if (!valid_type)
     return NULL;
 
   std::unique_ptr<RawGamepadInfo> gamepad_info(new RawGamepadInfo);
   gamepad_info->handle = hDevice;
   gamepad_info->report_id = 0;
   gamepad_info->vendor_id = device_info->hid.dwVendorId;
   gamepad_info->product_id = device_info->hid.dwProductId;
   gamepad_info->buttons_length = 0;
   ZeroMemory(gamepad_info->buttons, sizeof(gamepad_info->buttons));
   gamepad_info->axes_length = 0;
   ZeroMemory(gamepad_info->axes, sizeof(gamepad_info->axes));
 
   // Query device identifier
-  result = GetRawInputDeviceInfo(hDevice, RIDI_DEVICENAME,
-      NULL, &size);
+  result = GetRawInputDeviceInfo(hDevice, RIDI_DEVICENAME, NULL, &size);
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceInfo() failed";
     return NULL;
   }
   DCHECK_EQ(0u, result);
 
   std::unique_ptr<wchar_t[]> name_buffer(new wchar_t[size]);
-  result = GetRawInputDeviceInfo(hDevice, RIDI_DEVICENAME,
-      name_buffer.get(), &size);
+  result =
+      GetRawInputDeviceInfo(hDevice, RIDI_DEVICENAME, name_buffer.get(), &size);
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceInfo() failed";
     return NULL;
   }
   DCHECK_EQ(size, result);
 
   // The presence of "IG_" in the device name indicates that this is an XInput
   // Gamepad. Skip enumerating these devices and let the XInput path handle it.
   // http://msdn.microsoft.com/en-us/library/windows/desktop/ee417014.aspx
-  if (filter_xinput_ && wcsstr( name_buffer.get(), L"IG_" ) )
+  if (filter_xinput_ && wcsstr(name_buffer.get(), L"IG_"))
     return NULL;
 
   // Get a friendly device name
   BOOLEAN got_product_string = FALSE;
-  HANDLE hid_handle = CreateFile(name_buffer.get(), GENERIC_READ|GENERIC_WRITE,
-      FILE_SHARE_READ|FILE_SHARE_WRITE, NULL, OPEN_EXISTING, NULL, NULL);
+  HANDLE hid_handle = CreateFile(
+      name_buffer.get(), GENERIC_READ | GENERIC_WRITE,
+      FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING, NULL, NULL);
   if (hid_handle) {
     got_product_string = hidd_get_product_string_(hid_handle, gamepad_info->id,
-        sizeof(gamepad_info->id));
+                                                  sizeof(gamepad_info->id));
     CloseHandle(hid_handle);
   }
 
   if (!got_product_string)
     swprintf(gamepad_info->id, WebGamepad::idLengthCap, L"Unknown Gamepad");
 
   // Query device capabilities.
-  result = GetRawInputDeviceInfo(hDevice, RIDI_PREPARSEDDATA,
-      NULL, &size);
+  result = GetRawInputDeviceInfo(hDevice, RIDI_PREPARSEDDATA, NULL, &size);
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceInfo() failed";
     return NULL;
   }
   DCHECK_EQ(0u, result);
 
   gamepad_info->ppd_buffer.reset(new uint8_t[size]);
   gamepad_info->preparsed_data =
       reinterpret_cast<PHIDP_PREPARSED_DATA>(gamepad_info->ppd_buffer.get());
   result = GetRawInputDeviceInfo(hDevice, RIDI_PREPARSEDDATA,
-       gamepad_info->ppd_buffer.get(), &size);
+                                 gamepad_info->ppd_buffer.get(), &size);
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputDeviceInfo() failed";
     return NULL;
   }
   DCHECK_EQ(size, result);
 
   HIDP_CAPS caps;
   NTSTATUS status = hidp_get_caps_(gamepad_info->preparsed_data, &caps);
   DCHECK_EQ(HIDP_STATUS_SUCCESS, status);
 
   // Query button information.
   USHORT count = caps.NumberInputButtonCaps;
   if (count > 0) {
     std::unique_ptr<HIDP_BUTTON_CAPS[]> button_caps(
         new HIDP_BUTTON_CAPS[count]);
-    status = hidp_get_button_caps_(
-        HidP_Input, button_caps.get(), &count, gamepad_info->preparsed_data);
+    status = hidp_get_button_caps_(HidP_Input, button_caps.get(), &count,
+                                   gamepad_info->preparsed_data);
     DCHECK_EQ(HIDP_STATUS_SUCCESS, status);
 
     for (uint32_t i = 0; i < count; ++i) {
       if (button_caps[i].Range.UsageMin <= WebGamepad::buttonsLengthCap &&
           button_caps[i].UsagePage == kButtonUsagePage) {
         uint32_t max_index =
             std::min(WebGamepad::buttonsLengthCap,
                      static_cast<size_t>(button_caps[i].Range.UsageMax));
-        gamepad_info->buttons_length = std::max(
-            gamepad_info->buttons_length, max_index);
+        gamepad_info->buttons_length =
+            std::max(gamepad_info->buttons_length, max_index);
       }
     }
   }
 
   // Query axis information.
   count = caps.NumberInputValueCaps;
   std::unique_ptr<HIDP_VALUE_CAPS[]> axes_caps(new HIDP_VALUE_CAPS[count]);
   status = hidp_get_value_caps_(HidP_Input, axes_caps.get(), &count,
-      gamepad_info->preparsed_data);
+                                gamepad_info->preparsed_data);
 
   bool mapped_all_axes = true;
 
   for (UINT i = 0; i < count; i++) {
     uint32_t axis_index = axes_caps[i].Range.UsageMin - kAxisMinimumUsageNumber;
     if (axis_index < WebGamepad::axesLengthCap) {
       gamepad_info->axes[axis_index].caps = axes_caps[i];
       gamepad_info->axes[axis_index].value = 0;
       gamepad_info->axes[axis_index].active = true;
       gamepad_info->axes[axis_index].bitmask = GetBitmask(axes_caps[i].BitSize);
       gamepad_info->axes_length =
           std::max(gamepad_info->axes_length, axis_index + 1);
     } else {
       mapped_all_axes = false;
     }
   }
 
   if (!mapped_all_axes) {
     // For axes who's usage puts them outside the standard axesLengthCap range.
     uint32_t next_index = 0;
     for (UINT i = 0; i < count; i++) {
       uint32_t usage = axes_caps[i].Range.UsageMin - kAxisMinimumUsageNumber;
       if (usage >= WebGamepad::axesLengthCap &&
           axes_caps[i].UsagePage <= kGameControlsUsagePage) {
-
         for (; next_index < WebGamepad::axesLengthCap; ++next_index) {
           if (!gamepad_info->axes[next_index].active)
             break;
         }
         if (next_index < WebGamepad::axesLengthCap) {
           gamepad_info->axes[next_index].caps = axes_caps[i];
           gamepad_info->axes[next_index].value = 0;
           gamepad_info->axes[next_index].active = true;
-          gamepad_info->axes[next_index].bitmask = GetBitmask(
-              axes_caps[i].BitSize);
+          gamepad_info->axes[next_index].bitmask =
+              GetBitmask(axes_caps[i].BitSize);
           gamepad_info->axes_length =
               std::max(gamepad_info->axes_length, next_index + 1);
         }
       }
 
       if (next_index >= WebGamepad::axesLengthCap)
         break;
     }
   }
 
   return gamepad_info.release();
 }
 
-void RawInputDataFetcher::UpdateGamepad(
-    RAWINPUT* input,
-    RawGamepadInfo* gamepad_info) {
+void RawInputDataFetcher::UpdateGamepad(RAWINPUT* input,
+                                        RawGamepadInfo* gamepad_info) {
   NTSTATUS status;
 
   gamepad_info->report_id++;
 
   // Query button state.
   if (gamepad_info->buttons_length) {
     // Clear the button state
     ZeroMemory(gamepad_info->buttons, sizeof(gamepad_info->buttons));
     ULONG buttons_length = 0;
 
-    hidp_get_usages_ex_(HidP_Input,
-                        0,
-                        NULL,
-                        &buttons_length,
+    hidp_get_usages_ex_(HidP_Input, 0, NULL, &buttons_length,
                         gamepad_info->preparsed_data,
                         reinterpret_cast<PCHAR>(input->data.hid.bRawData),
                         input->data.hid.dwSizeHid);
 
     std::unique_ptr<USAGE_AND_PAGE[]> usages(
         new USAGE_AND_PAGE[buttons_length]);
     status =
-        hidp_get_usages_ex_(HidP_Input,
-                            0,
-                            usages.get(),
-                            &buttons_length,
+        hidp_get_usages_ex_(HidP_Input, 0, usages.get(), &buttons_length,
                             gamepad_info->preparsed_data,
                             reinterpret_cast<PCHAR>(input->data.hid.bRawData),
                             input->data.hid.dwSizeHid);
 
     if (status == HIDP_STATUS_SUCCESS) {
       // Set each reported button to true.
       for (uint32_t j = 0; j < buttons_length; j++) {
         int32_t button_index = usages[j].Usage - 1;
-        if (usages[j].UsagePage == kButtonUsagePage &&
-            button_index >= 0 &&
+        if (usages[j].UsagePage == kButtonUsagePage && button_index >= 0 &&
             button_index <
                 static_cast<int>(blink::WebGamepad::buttonsLengthCap)) {
           gamepad_info->buttons[button_index] = true;
         }
       }
     }
   }
 
   // Query axis state.
   ULONG axis_value = 0;
   LONG scaled_axis_value = 0;
   for (uint32_t i = 0; i < gamepad_info->axes_length; i++) {
     RawGamepadAxis* axis = &gamepad_info->axes[i];
 
     // If the min is < 0 we have to query the scaled value, otherwise we need
     // the normal unscaled value.
     if (axis->caps.LogicalMin < 0) {
-      status = hidp_get_scaled_usage_value_(HidP_Input, axis->caps.UsagePage, 0,
-          axis->caps.Range.UsageMin, &scaled_axis_value,
-          gamepad_info->preparsed_data,
+      status = hidp_get_scaled_usage_value_(
+          HidP_Input, axis->caps.UsagePage, 0, axis->caps.Range.UsageMin,
+          &scaled_axis_value, gamepad_info->preparsed_data,
           reinterpret_cast<PCHAR>(input->data.hid.bRawData),
           input->data.hid.dwSizeHid);
       if (status == HIDP_STATUS_SUCCESS) {
-        axis->value = NormalizeAxis(scaled_axis_value,
-            axis->caps.PhysicalMin, axis->caps.PhysicalMax);
+        axis->value = NormalizeAxis(scaled_axis_value, axis->caps.PhysicalMin,
+                                    axis->caps.PhysicalMax);
       }
     } else {
-      status = hidp_get_usage_value_(HidP_Input, axis->caps.UsagePage, 0,
-          axis->caps.Range.UsageMin, &axis_value,
-          gamepad_info->preparsed_data,
+      status = hidp_get_usage_value_(
+          HidP_Input, axis->caps.UsagePage, 0, axis->caps.Range.UsageMin,
+          &axis_value, gamepad_info->preparsed_data,
           reinterpret_cast<PCHAR>(input->data.hid.bRawData),
           input->data.hid.dwSizeHid);
       if (status == HIDP_STATUS_SUCCESS) {
         axis->value = NormalizeAxis(axis_value & axis->bitmask,
-            axis->caps.LogicalMin & axis->bitmask,
-            axis->caps.LogicalMax & axis->bitmask);
+                                    axis->caps.LogicalMin & axis->bitmask,
+                                    axis->caps.LogicalMax & axis->bitmask);
       }
     }
   }
 }
 
 LRESULT RawInputDataFetcher::OnInput(HRAWINPUT input_handle) {
   // Get the size of the input record.
   UINT size = 0;
-  UINT result = GetRawInputData(
-      input_handle, RID_INPUT, NULL, &size, sizeof(RAWINPUTHEADER));
+  UINT result = GetRawInputData(input_handle, RID_INPUT, NULL, &size,
+                                sizeof(RAWINPUTHEADER));
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputData() failed";
     return 0;
   }
   DCHECK_EQ(0u, result);
 
   // Retrieve the input record.
   std::unique_ptr<uint8_t[]> buffer(new uint8_t[size]);
   RAWINPUT* input = reinterpret_cast<RAWINPUT*>(buffer.get());
-  result = GetRawInputData(
-      input_handle, RID_INPUT, buffer.get(), &size, sizeof(RAWINPUTHEADER));
+  result = GetRawInputData(input_handle, RID_INPUT, buffer.get(), &size,
+                           sizeof(RAWINPUTHEADER));
   if (result == static_cast<UINT>(-1)) {
     PLOG(ERROR) << "GetRawInputData() failed";
     return 0;
   }
   DCHECK_EQ(size, result);
 
   // Notify the observer about events generated locally.
   if (input->header.dwType == RIM_TYPEHID && input->header.hDevice != NULL) {
     RawGamepadInfo* gamepad = GetGamepadInfo(input->header.hDevice);
     if (gamepad)
@@ skipping 19 matching lines @@
 
 bool RawInputDataFetcher::GetHidDllFunctions() {
   hidp_get_caps_ = NULL;
   hidp_get_button_caps_ = NULL;
   hidp_get_value_caps_ = NULL;
   hidp_get_usages_ex_ = NULL;
   hidp_get_usage_value_ = NULL;
   hidp_get_scaled_usage_value_ = NULL;
   hidd_get_product_string_ = NULL;
 
-  if (!hid_dll_.is_valid()) return false;
+  if (!hid_dll_.is_valid())
+    return false;
 
   hidp_get_caps_ = reinterpret_cast<HidPGetCapsFunc>(
       hid_dll_.GetFunctionPointer("HidP_GetCaps"));
   if (!hidp_get_caps_)
     return false;
   hidp_get_button_caps_ = reinterpret_cast<HidPGetButtonCapsFunc>(
       hid_dll_.GetFunctionPointer("HidP_GetButtonCaps"));
   if (!hidp_get_button_caps_)
     return false;
   hidp_get_value_caps_ = reinterpret_cast<HidPGetValueCapsFunc>(
@@ skipping 13 matching lines @@
   if (!hidp_get_scaled_usage_value_)
     return false;
   hidd_get_product_string_ = reinterpret_cast<HidDGetStringFunc>(
       hid_dll_.GetFunctionPointer("HidD_GetProductString"));
   if (!hidd_get_product_string_)
     return false;
 
   return true;
 }
 
-}  // namespace content
+}  // namespace device