Initial HID PAD work, with GLFW only.

src/common/CMakeLists.txt

@@ -8,6 +8,7 @@ set(SRCS
             file_search.cpp
             file_util.cpp
             hash.cpp
+            key_map.cpp
             log_manager.cpp
             math_util.cpp
             mem_arena.cpp
@@ -39,6 +40,7 @@ set(HEADERS
             file_search.h
             file_util.h
             hash.h
+            key_map.h
             linear_disk_cache.h
             log.h
             log_manager.h

src/common/emu_window.h

@@ -7,6 +7,9 @@
 #include "common/common.h"
 #include "common/scm_rev.h"
 
+#include "common/key_map.h"
+#include "core/hle/service/hid.h"
+
 // Abstraction class used to provide an interface between emulation code and the frontend (e.g. SDL, 
 //  QGLWidget, GLFW, etc...)
 class EmuWindow
@@ -32,6 +35,22 @@ public:
     /// Releases (dunno if this is the "right" word) the GLFW context from the caller thread
     virtual void DoneCurrent() = 0;
 
+    static void KeyPressed(KeyMap::CitraKey key) {
+        HID_User::PADState mapped_key = KeyMap::Get3DSKey(key);
+
+        if (mapped_key.hex != HID_User::PAD_NONE.hex) {
+            HID_User::PADButtonPress(mapped_key);
+        }
+    }
+
+    static void KeyReleased(KeyMap::CitraKey key) {
+        HID_User::PADState mapped_key = KeyMap::Get3DSKey(key);
+
+        if (mapped_key.hex != HID_User::PAD_NONE.hex) {
+            HID_User::PADButtonRelease(mapped_key);
+        }
+    }
+
     Config GetConfig() const { 
         return m_config;
     }

src/common/key_map.cpp

@@ -0,0 +1,21 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#include "key_map.h"
+#include <map>
+
+
+namespace KeyMap {
+
+std::map<CitraKey, HID_User::PADState> g_key_map;
+
+void SetKeyMapping(CitraKey key, HID_User::PADState padState) {
+    g_key_map[key].hex = padState.hex;
+}
+
+HID_User::PADState Get3DSKey(CitraKey key) {
+    return g_key_map[key];
+}
+
+}

src/common/key_map.h

@@ -0,0 +1,35 @@
+// Copyright 2013 Dolphin Emulator Project
+// Licensed under GPLv2
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "core/hle/service/hid.h"
+
+namespace KeyMap {
+
+class CitraKey {
+public:
+    CitraKey() : keyCode(0) {}
+    CitraKey(int code) : keyCode(code) {}
+
+    int keyCode;
+
+    bool operator < (const CitraKey &other) const {
+        return keyCode < other.keyCode;
+    }
+
+    bool operator == (const CitraKey &other) const {
+        return keyCode == other.keyCode;
+    }
+};
+
+struct DefaultKeyMapping {
+    KeyMap::CitraKey key;
+    HID_User::PADState state;
+};
+
+void SetKeyMapping(CitraKey key, HID_User::PADState padState);
+HID_User::PADState Get3DSKey(CitraKey key);
+
+}