nsgldevice.h

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/*
    This file is part of Mitsuba, a physically based rendering system.

    Copyright (c) 2007-2014 by Wenzel Jakob and others.

    Mitsuba is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License Version 3
    as published by the Free Software Foundation.

    Mitsuba 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/>.
*/

#if !defined(__MITSUBA_HW_NSGLDEVICE_H_)
#define __MITSUBA_HW_NSGLDEVICE_H_

#include <mitsuba/hw/device.h>
#include <mitsuba/hw/nsglsession.h>

MTS_NAMESPACE_BEGIN
class NSGLDevice;
MTS_NAMESPACE_END

#ifdef __OBJC__
#include <Cocoa/Cocoa.h>

@interface CustomView : NSView < NSWindowDelegate > {
        mitsuba::NSGLDevice *m_device;
        unsigned int m_keymap[0xFF];
        unsigned int m_modifiers;
        unsigned int m_buttonMask;
        bool m_mouseInWindow;
        bool m_firstMouseMotion;
        bool m_focused;
        bool m_ignoreNextMouseEvent;
}

- (BOOL) focused;
- (unsigned int) extractModifiers: (unsigned int) modifiers;
- (void) setDevice: (mitsuba::NSGLDevice *) device;
- (void) ignoreNextMouseEvent;
- (void) ignoreFirstMouseMotion;
@end

#endif

MTS_NAMESPACE_BEGIN

/** \brief A MacOS X (NSGL) device
 */
class MTS_EXPORT_HW NSGLDevice : public Device {
public:
        /// Create a new device
        NSGLDevice(NSGLSession *session);

        /// Initialize the device
        void init(Device *other = NULL);

        /// Shut the device down
        void shutdown();

        /// Flip the buffers
        void flip();

        /// Only applies in windowed mode
        void setVisible(bool enabled);

        /// Only applies in windowed mode
        void setPosition(const Point2i &position);

        /// Set the window title
        void setTitle(const std::string &title);

        /// Display the NSGL cursor?
        void showCursor(bool enabled);

        /// Move the mouse to another position
        void warpMouse(const Point2i &position);

        /// Associate a renderer with this device
        void makeCurrent(Renderer *renderer);

        /// Set the cursor grab state
        void setGrab(bool grab);

        // *************************************
        // ************* INTERNAL **************
        // *************************************

        /// Is the NSGL cursor shown?
        inline bool getCursor() const { return m_cursor; }

        /// Is the mouse inside the window?
        bool isMouseInWindow();

        /// Push a device event onto the stack
        void pushEvent(const DeviceEvent &event);

        /**
         * Deliver all events which have been
         * received asynchronously
         */
        void processEvents();

        /// Return the NSWindow
        inline void *getWindow() { return m_window; }

        /// Return the pixel format
        inline void *getPixelFormat() { return m_fmt; }

        MTS_DECLARE_CLASS()
protected:
        /// Virtual destructor
        virtual ~NSGLDevice();
private:
#ifdef __OBJC__
        NSWindow *m_window;
        CustomView *m_view;
        NSOpenGLPixelFormat *m_fmt;
        NSOpenGLContext *m_currentContext;
#else
        void *m_window;
        void *m_view;
        void *m_fmt;
        void *m_currentContext;
#endif
        bool m_visible;
        bool m_cursor;
        std::vector<DeviceEvent> m_deviceEvents;
        ref<Mutex> m_mutex;
};

MTS_NAMESPACE_END

#endif /* __MITSUBA_HW_NSGLDEVICE_H_ */