Add a Androind ControllerInterface class for allowing input in a non-hacky way. Add a default GCPad.ini file so it actually works.

Source/Core/InputCommon/Src/Android/ButtonManager.cpp

@@ -0,0 +1,90 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include <vector>
+#include "GLInterface.h"
+#include "Android/TextureLoader.h"
+#include "Android/ButtonManager.h"
+
+extern void DrawButton(GLuint tex, float *coords);
+
+namespace ButtonManager
+{
+	std::vector<Button*> m_buttons;
+
+	// XXX: This needs to not be here so we can load the locations from file
+	// This will allow customizable button locations in the future
+	// These are the OpenGL on screen coordinates
+	float m_coords[][8] =	{ // X, Y, X, EY, EX, EY, EX, Y
+				{0.75f, -1.0f, 0.75f, -0.75f, 1.0f, -0.75f, 1.0f, -1.0f}, // A
+				{0.50f, -1.0f, 0.50f, -0.75f, 0.75f, -0.75f, 0.75f, -1.0f}, // B
+				{-0.10f, -1.0f, -0.10f, -0.80f, 0.10f, -0.80f, 0.10f, -1.0f}, // Start
+				};
+	
+	void Init()
+	{
+		glEnable(GL_BLEND);
+		glBlendFunc(GL_ONE, GL_ONE_MINUS_SRC_ALPHA);
+		
+		// Initialize our buttons
+		m_buttons.push_back(new Button("ButtonA.png", BUTTON_A, m_coords[0]));
+		m_buttons.push_back(new Button("ButtonB.png", BUTTON_B, m_coords[1]));
+		m_buttons.push_back(new Button("ButtonStart.png", BUTTON_START, m_coords[2]));
+	}
+	bool GetButtonPressed(ButtonType button)
+	{
+		for (auto it = m_buttons.begin(); it != m_buttons.end(); ++it)
+			if ((*it)->GetButtonType() == button)
+				return (*it)->Pressed();
+		return false;
+	}
+	void TouchEvent(int action, float x, float y)
+	{
+		// Actions
+		// 0 is press
+		// 1 is let go
+		// 2 is move
+		for (auto it = m_buttons.begin(); it != m_buttons.end(); ++it)
+		{
+			float *coords = (*it)->GetCoords();
+			if (	x >= coords[0] &&
+				x <= coords[4] &&
+				y >= coords[1] &&
+				y <= coords[3])
+			{
+				if (action == 0)
+					(*it)->SetState(BUTTON_PRESSED);
+				if (action == 1)
+					(*it)->SetState(BUTTON_RELEASED);
+				if (action == 2)
+					; // XXX: Be used later for analog stick
+			}
+		}
+	}
+	void Shutdown()
+	{
+		for(auto it = m_buttons.begin(); it != m_buttons.end(); ++it)
+			delete *it;
+	}
+
+	void DrawButtons()
+	{
+		for(auto it = m_buttons.begin(); it != m_buttons.end(); ++it)
+			DrawButton((*it)->GetTexture(), (*it)->GetCoords());	
+	}
+
+}

Source/Core/InputCommon/Src/Android/ButtonManager.h

@@ -0,0 +1,63 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include <string>
+#include "CommonPaths.h"
+#include "Android/TextureLoader.h"
+
+namespace ButtonManager
+{
+	enum ButtonType
+	{
+		BUTTON_A = 0,
+		BUTTON_B,
+		BUTTON_START,
+	};
+	enum ButtonState
+	{
+		BUTTON_RELEASED = 0,
+		BUTTON_PRESSED = 1
+	};
+	class Button
+	{
+	private:
+		GLuint m_tex;
+		ButtonType m_button;
+		ButtonState m_state;
+		float m_coords[8];
+	public:
+		Button(std::string filename, ButtonType button, float *coords)
+		{
+			m_tex = LoadPNG((std::string(DOLPHIN_DATA_DIR "/") + filename).c_str());
+			m_button = button;
+			memcpy(m_coords, coords, sizeof(float) * 8);
+			m_state = BUTTON_RELEASED;
+		}
+		void SetState(ButtonState state) { m_state = state; }
+		bool Pressed() { return m_state == BUTTON_PRESSED; }
+		ButtonType GetButtonType() { return m_button; }
+		GLuint GetTexture() { return m_tex; }
+		float *GetCoords() { return m_coords; }
+			
+		~Button() { glDeleteTextures(1, &m_tex); }
+	};
+	void Init();
+	void DrawButtons();
+	bool GetButtonPressed(ButtonType button);
+	void TouchEvent(int action, float x, float y);
+	void Shutdown();
+}

Source/Core/InputCommon/Src/ControllerInterface/Android/Android.cpp

@@ -0,0 +1,67 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+
+#include "Android.h"
+
+namespace ciface
+{
+
+namespace Android
+{
+
+void Init( std::vector<ControllerInterface::Device*>& devices )
+{
+	devices.push_back(new Touchscreen());
+}
+
+// Touchscreens and stuff
+std::string Touchscreen::GetName() const
+{
+	return "Touchscreen";
+}
+
+std::string Touchscreen::GetSource() const
+{
+	return "Android";
+}
+
+int Touchscreen::GetId() const
+{
+	return 0;
+}
+Touchscreen::Touchscreen()
+{
+	AddInput(new Button(ButtonManager::BUTTON_A));
+	AddInput(new Button(ButtonManager::BUTTON_B));
+	AddInput(new Button(ButtonManager::BUTTON_START));
+}
+// Buttons and stuff
+
+std::string Touchscreen::Button::GetName() const
+{
+	std::ostringstream ss;
+	ss << "Button " << (int)m_index;
+	return ss.str();
+}
+
+ControlState Touchscreen::Button::GetState() const
+{
+	return ButtonManager::GetButtonPressed(m_index);
+}
+
+}
+}

Source/Core/InputCommon/Src/ControllerInterface/Android/Android.h

@@ -0,0 +1,57 @@
+// Copyright (C) 2003 Dolphin Project.
+
+// This program is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, version 2.0.
+
+// This program is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License 2.0 for more details.
+
+// A copy of the GPL 2.0 should have been included with the program.
+// If not, see http://www.gnu.org/licenses/
+
+// Official SVN repository and contact information can be found at
+// http://code.google.com/p/dolphin-emu/
+#ifndef _CIFACE_ANDROID_H_
+#define _CIFACE_ANDROID_H_
+
+#include "../ControllerInterface.h"
+#include "Android/ButtonManager.h"
+
+namespace ciface
+{
+namespace Android
+{
+
+void Init( std::vector<ControllerInterface::Device*>& devices );
+class Touchscreen : public ControllerInterface::Device
+{
+private:
+	class Button : public Input
+	{
+	public:
+		std::string GetName() const;
+		Button(ButtonManager::ButtonType index) : m_index(index) {}
+		ControlState GetState() const;
+	private:
+		 const ButtonManager::ButtonType m_index;
+	};
+
+public:
+	bool UpdateInput() { return true; }
+	bool UpdateOutput() { return true; }
+
+	Touchscreen();
+	~Touchscreen() {}
+
+	std::string GetName() const;
+	int GetId() const;
+	std::string GetSource() const;
+};
+
+}
+}
+
+#endif

Source/Core/InputCommon/Src/ControllerInterface/ControllerInterface.cpp

@@ -15,6 +15,9 @@
 #ifdef CIFACE_USE_SDL
 	#include "SDL/SDL.h"
 #endif
+#ifdef CIFACE_USE_ANDROID
+	#include "Android/Android.h"
+#endif
 
 #include "Thread.h"
 
@@ -50,6 +53,9 @@ void ControllerInterface::Initialize()
 #ifdef CIFACE_USE_SDL
 	ciface::SDL::Init(m_devices);
 #endif
+#ifdef CIFACE_USE_ANDROID
+	ciface::Android::Init(m_devices);
+#endif
 
 	m_is_init = true;
 }
@@ -100,6 +106,9 @@ void ControllerInterface::Shutdown()
 	// TODO: there seems to be some sort of memory leak with SDL, quit isn't freeing everything up
 	SDL_Quit();
 #endif
+#ifdef CIFACE_USE_ANDROID
+	// nothing needed
+#endif
 
 	m_is_init = false;
 }

Source/Core/InputCommon/Src/ControllerInterface/ControllerInterface.h

@@ -29,7 +29,10 @@
 #if defined(__APPLE__)
 	#define CIFACE_USE_OSX
 #endif
-
+#ifdef ANDROID
+	#define CIFACE_USE_ANDROID
+#endif
+		
 // idk in case i wanted to change it to double or somethin, idk what's best
 typedef float ControlState;