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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_platform_data_fetcher_android.h" | |
6 | |
7 #include "base/debug/trace_event.h" | |
8 #include "base/strings/utf_string_conversions.h" | |
9 #include "jni/GamepadAdapter_jni.h" | |
10 #include "third_party/WebKit/public/platform/WebGamepad.h" | |
11 | |
12 namespace content { | |
13 | |
14 using base::android::AttachCurrentThread; | |
15 using blink::WebGamepad; | |
16 using blink::WebGamepads; | |
17 | |
18 GamepadPlatformDataFetcherAndroid::GamepadPlatformDataFetcherAndroid() { | |
19 j_gamepad_adapter_ = | |
20 Java_GamepadAdapter_attach(AttachCurrentThread(), | |
21 reinterpret_cast<intptr_t>(this)); | |
22 } | |
23 | |
24 GamepadPlatformDataFetcherAndroid::~GamepadPlatformDataFetcherAndroid() { | |
25 } | |
26 | |
27 void GamepadPlatformDataFetcherAndroid::GetGamepadData( | |
28 blink::WebGamepads* pads, | |
29 bool devices_changed_hint) { | |
30 TRACE_EVENT0("GAMEPAD", "GetGamepadData"); | |
31 data_ = pads; | |
32 data_->length = WebGamepads::itemsLengthCap; | |
33 Java_GamepadAdapter_getGamepadData(AttachCurrentThread(), | |
34 j_gamepad_adapter_.obj()); | |
35 data_ = NULL; | |
36 } | |
37 | |
38 void GamepadPlatformDataFetcherAndroid::PauseHint(bool paused) { | |
39 Java_GamepadAdapter_setActive( | |
40 AttachCurrentThread(), j_gamepad_adapter_.obj(), !paused); | |
41 } | |
42 | |
43 void GamepadPlatformDataFetcherAndroid::RefreshDevice( | |
44 JNIEnv* env, | |
45 jobject obj, | |
46 int index, | |
47 bool connected, | |
48 jstring id, | |
49 long timestamp, | |
50 jfloatArray axes, | |
51 jfloatArray buttons) { | |
52 CHECK(data_); | |
53 WebGamepad& pad = data_->items[index]; | |
54 pad.connected = connected; | |
55 if (!connected) | |
56 return; | |
57 jsize id_length = env->GetStringLength(id); | |
58 const jchar* id_utf16 = env->GetStringChars(id, 0); | |
59 COMPILE_ASSERT(sizeof(jchar) == sizeof(blink::WebUChar), | |
60 jchar_and_WebUChar_are_same_size); | |
61 const size_t bytes_to_copy = | |
62 std::min(id_length * sizeof(jchar), WebGamepad::idLengthCap); | |
63 memcpy(pad.id, id_utf16, bytes_to_copy); | |
64 pad.id[bytes_to_copy] = 0; | |
65 env->ReleaseStringChars(id, id_utf16); | |
66 | |
67 pad.timestamp = timestamp; | |
68 pad.axesLength = std::min(env->GetArrayLength(axes), | |
69 static_cast<int>(WebGamepad::axesLengthCap)); | |
70 jfloat* raw_axes = env->GetFloatArrayElements(axes, 0); | |
71 memcpy(pad.axes, raw_axes, pad.axesLength * sizeof(float)); | |
72 env->ReleaseFloatArrayElements(axes, raw_axes, 0); | |
73 pad.buttonsLength = std::min(env->GetArrayLength(buttons), | |
74 static_cast<int>(WebGamepad::buttonsLengthCap)); | |
75 jfloat* raw_buttons = env->GetFloatArrayElements(buttons, 0); | |
76 memcpy(pad.buttons, raw_buttons, pad.buttonsLength * sizeof(float)); | |
bajones
2014/03/01 00:04:03
You'll need to rebase this code, the buttons are n
| |
77 env->ReleaseFloatArrayElements(buttons, raw_buttons, 0); | |
78 } | |
79 | |
80 bool GamepadPlatformDataFetcherAndroid::RegisterGamepadAdapter(JNIEnv* env) { | |
81 return RegisterNativesImpl(env); | |
82 } | |
83 | |
84 } | |
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