android-graphics.h

/* ScummVM - Graphic Adventure Engine
 *
 * ScummVM is the legal property of its developers, whose names
 * are too numerous to list here. Please refer to the COPYRIGHT
 * file distributed with this source distribution.
 *
 * 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, either version 3 of the License, or
 * (at your option) any later version.
 *
 * 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 for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *
 */

#ifndef BACKENDS_GRAPHICS_ANDROID_ANDROID_GRAPHICS_H
#define BACKENDS_GRAPHICS_ANDROID_ANDROID_GRAPHICS_H

#include "common/scummsys.h"
#include "backends/graphics/opengl/opengl-graphics.h"

#include "backends/platform/android/touchcontrols.h"

class AndroidCommonGraphics {
public:
    virtual ~AndroidCommonGraphics() {}

    virtual void initSurface() = 0;
    virtual void deinitSurface() = 0;
    virtual void resizeSurface() = 0;

    virtual Common::Point getMousePosition() = 0;
    virtual bool notifyMousePosition(Common::Point &mouse) = 0;

    virtual void syncVirtkeyboardState(bool virtkeybd_on) = 0;
    virtual void applyTouchSettings() const = 0;

    struct State {
        int screenWidth, screenHeight;
        bool aspectRatio;
        bool fullscreen;
        bool cursorPalette;

#ifdef USE_RGB_COLOR
        Graphics::PixelFormat pixelFormat;
#endif
    };

    virtual State getState() const = 0;

    virtual bool setState(const State &state) = 0;
};

class AndroidGraphicsManager :
    public OpenGL::OpenGLGraphicsManager, public AndroidCommonGraphics, public TouchControlsDrawer {
public:
    AndroidGraphicsManager();
    virtual ~AndroidGraphicsManager();

    virtual void initSurface() override;
    virtual void deinitSurface() override;
    virtual void resizeSurface() override;

    virtual AndroidCommonGraphics::State getState() const override;
    virtual bool setState(const AndroidCommonGraphics::State &state) override;

    void updateScreen() override;

    void displayMessageOnOSD(const Common::U32String &msg) override;

    virtual bool notifyMousePosition(Common::Point &mouse) override;
    virtual Common::Point getMousePosition() override { return Common::Point(_cursorX, _cursorY); }

    float getHiDPIScreenFactor() const override;

    void touchControlInitSurface(const Graphics::ManagedSurface &surf) override;
    void touchControlNotifyChanged() override;
    void touchControlDraw(uint8 alpha, int16 x, int16 y, int16 w, int16 h, const Common::Rect &clip) override;

protected:
    void recalculateDisplayAreas() override;
    void setSystemMousePosition(const int x, const int y) override {}

    void showOverlay(bool inGUI) override;
    void hideOverlay() override;


    bool loadVideoMode(uint requestedWidth, uint requestedHeight, const Graphics::PixelFormat &format) override;

    void refreshScreen() override;

    void syncVirtkeyboardState(bool virtkeybd_on) override;
    void applyTouchSettings() const override;

private:
    OpenGL::Surface *_touchcontrols;
    int _old_touch_mode;
};

#endif