content/browser/gamepad/gamepad_standard_mappings_linux.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "content/browser/gamepad/gamepad_standard_mappings.h"
   6
   7 #include "content/common/gamepad_hardware_buffer.h"
   8
   9 namespace content {
  10
  11 namespace {
  12
  13 float AxisToButton(float input) {
  14   return (input + 1.f) / 2.f;
  15 }
  16
  17 float AxisNegativeAsButton(float input) {
  18   return (input < -0.5f) ? 1.f : 0.f;
  19 }
  20
  21 float AxisPositiveAsButton(float input) {
  22   return (input > 0.5f) ? 1.f : 0.f;
  23 }
  24
  25 void MapperXInputStyleGamepad(
  26     const blink::WebGamepad& input,
  27     blink::WebGamepad* mapped) {
  28   *mapped = input;
  29   mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[2]);
  30   mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[5]);
  31   mapped->buttons[kButtonBackSelect] = input.buttons[6];
  32   mapped->buttons[kButtonStart] = input.buttons[7];
  33   mapped->buttons[kButtonLeftThumbstick] = input.buttons[9];
  34   mapped->buttons[kButtonRightThumbstick] = input.buttons[10];
  35   mapped->buttons[kButtonDpadUp] = AxisNegativeAsButton(input.axes[7]);
  36   mapped->buttons[kButtonDpadDown] = AxisPositiveAsButton(input.axes[7]);
  37   mapped->buttons[kButtonDpadLeft] = AxisNegativeAsButton(input.axes[6]);
  38   mapped->buttons[kButtonDpadRight] = AxisPositiveAsButton(input.axes[6]);
  39   mapped->buttons[kButtonMeta] = input.buttons[8];
  40   mapped->axes[kAxisRightStickX] = input.axes[3];
  41   mapped->axes[kAxisRightStickY] = input.axes[4];
  42   mapped->buttonsLength = kNumButtons;
  43   mapped->axesLength = kNumAxes;
  44 }
  45
  46 void MapperLakeviewResearch(
  47     const blink::WebGamepad& input,
  48     blink::WebGamepad* mapped) {
  49   *mapped = input;
  50   mapped->buttons[kButtonPrimary] = input.buttons[2];
  51   mapped->buttons[kButtonTertiary] = input.buttons[3];
  52   mapped->buttons[kButtonQuaternary] = input.buttons[0];
  53   mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
  54   mapped->buttons[kButtonRightShoulder] = input.buttons[7];
  55   mapped->buttons[kButtonLeftTrigger] = input.buttons[4];
  56   mapped->buttons[kButtonRightTrigger] = input.buttons[5];
  57   mapped->buttons[kButtonBackSelect] = input.buttons[9];
  58   mapped->buttons[kButtonStart] = input.buttons[8];
  59   mapped->buttons[kButtonDpadUp] = AxisNegativeAsButton(input.axes[5]);
  60   mapped->buttons[kButtonDpadDown] = AxisPositiveAsButton(input.axes[5]);
  61   mapped->buttons[kButtonDpadLeft] = AxisNegativeAsButton(input.axes[4]);
  62   mapped->buttons[kButtonDpadRight] = AxisPositiveAsButton(input.axes[4]);
  63   mapped->buttonsLength = kNumButtons - 1; // no Meta on this device
  64   mapped->axesLength = kNumAxes;
  65 }
  66
  67 void MapperPlaystationSixAxis(
  68     const blink::WebGamepad& input,
  69     blink::WebGamepad* mapped) {
  70   *mapped = input;
  71   mapped->buttons[kButtonPrimary] = input.buttons[14];
  72   mapped->buttons[kButtonSecondary] = input.buttons[13];
  73   mapped->buttons[kButtonTertiary] = input.buttons[15];
  74   mapped->buttons[kButtonQuaternary] = input.buttons[12];
  75   mapped->buttons[kButtonLeftShoulder] = input.buttons[10];
  76   mapped->buttons[kButtonRightShoulder] = input.buttons[11];
  77   mapped->buttons[kButtonLeftTrigger] = AxisToButton(input.axes[12]);
  78   mapped->buttons[kButtonRightTrigger] = AxisToButton(input.axes[13]);
  79   mapped->buttons[kButtonBackSelect] = input.buttons[0];
  80   mapped->buttons[kButtonStart] = input.buttons[3];
  81   mapped->buttons[kButtonLeftThumbstick] = input.buttons[1];
  82   mapped->buttons[kButtonRightThumbstick] = input.buttons[2];
  83   mapped->buttons[kButtonDpadUp] = AxisToButton(input.axes[8]);
  84   mapped->buttons[kButtonDpadDown] = AxisToButton(input.axes[10]);
  85   mapped->buttons[kButtonDpadLeft] = input.buttons[7];
  86   mapped->buttons[kButtonDpadRight] = AxisToButton(input.axes[9]);
  87   mapped->buttons[kButtonMeta] = input.buttons[16];
  88
  89   mapped->buttonsLength = kNumButtons;
  90   mapped->axesLength = kNumAxes;
  91 }
  92
  93 void MapperXGEAR(
  94     const blink::WebGamepad& input,
  95     blink::WebGamepad* mapped) {
  96   *mapped = input;
  97   mapped->buttons[kButtonPrimary] = input.buttons[2];
  98   mapped->buttons[kButtonSecondary] = input.buttons[1];
  99   mapped->buttons[kButtonTertiary] = input.buttons[3];
 100   mapped->buttons[kButtonQuaternary] = input.buttons[0];
 101   mapped->buttons[kButtonLeftShoulder] = input.buttons[6];
 102   mapped->buttons[kButtonRightShoulder] = input.buttons[7];
 103   mapped->buttons[kButtonLeftTrigger] = input.buttons[4];
 104   mapped->buttons[kButtonRightTrigger] = input.buttons[5];
 105   mapped->buttons[kButtonDpadUp] = AxisNegativeAsButton(input.axes[5]);
 106   mapped->buttons[kButtonDpadDown] = AxisPositiveAsButton(input.axes[5]);
 107   mapped->buttons[kButtonDpadLeft] = AxisNegativeAsButton(input.axes[4]);
 108   mapped->buttons[kButtonDpadRight] = AxisPositiveAsButton(input.axes[4]);
 109   mapped->axes[kAxisRightStickX] = input.axes[3];
 110   mapped->axes[kAxisRightStickY] = input.axes[2];
 111   mapped->buttonsLength = kNumButtons - 1; // no Meta on this device
 112   mapped->axesLength = kNumAxes;
 113 }
 114
 115
 116 void MapperDragonRiseGeneric(
 117     const blink::WebGamepad& input,
 118     blink::WebGamepad* mapped) {
 119   *mapped = input;
 120   mapped->buttons[kButtonDpadUp] = AxisNegativeAsButton(input.axes[6]);
 121   mapped->buttons[kButtonDpadDown] = AxisPositiveAsButton(input.axes[6]);
 122   mapped->buttons[kButtonDpadLeft] = AxisNegativeAsButton(input.axes[5]);
 123   mapped->buttons[kButtonDpadRight] = AxisPositiveAsButton(input.axes[5]);
 124   mapped->axes[kAxisLeftStickX] = input.axes[0];
 125   mapped->axes[kAxisLeftStickY] = input.axes[1];
 126   mapped->axes[kAxisRightStickX] = input.axes[3];
 127   mapped->axes[kAxisRightStickY] = input.axes[4];
 128   mapped->buttonsLength = kNumButtons - 1; // no Meta on this device
 129   mapped->axesLength = kNumAxes;
 130 }
 131
 132
 133 struct MappingData {
 134   const char* const vendor_id;
 135   const char* const product_id;
 136   GamepadStandardMappingFunction function;
 137 } AvailableMappings[] = {
 138   // http://www.linux-usb.org/usb.ids
 139   { "0079", "0006", MapperDragonRiseGeneric }, // DragonRise Generic USB
 140   { "045e", "028e", MapperXInputStyleGamepad }, // Xbox 360 Controller
 141   { "045e", "028f", MapperXInputStyleGamepad }, // Xbox 360 Wireless Controller
 142   { "046d", "c21d", MapperXInputStyleGamepad }, // Logitech F310
 143   { "046d", "c21e", MapperXInputStyleGamepad }, // Logitech F510
 144   { "046d", "c21f", MapperXInputStyleGamepad }, // Logitech F710
 145   { "054c", "0268", MapperPlaystationSixAxis }, // Playstation SIXAXIS
 146   { "0925", "0005", MapperLakeviewResearch }, // SmartJoy PLUS Adapter
 147   { "0925", "8866", MapperLakeviewResearch }, // WiseGroup MP-8866
 148   { "0e8f", "0003", MapperXGEAR }, // XFXforce XGEAR PS2 Controller
 149 };
 150
 151 }  // namespace
 152
 153 GamepadStandardMappingFunction GetGamepadStandardMappingFunction(
 154     const base::StringPiece& vendor_id,
 155     const base::StringPiece& product_id) {
 156   for (size_t i = 0; i < arraysize(AvailableMappings); ++i) {
 157     MappingData& item = AvailableMappings[i];
 158     if (vendor_id == item.vendor_id && product_id == item.product_id)
 159       return item.function;
 160   }
 161   return NULL;
 162 }
 163
 164 }  // namespace content