115 lines
3.4 KiB
C++
115 lines
3.4 KiB
C++
// Filename: subprocessWindow.h
|
|
// Created by: drose (11Jul09)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
//
|
|
// All use of this software is subject to the terms of the revised BSD
|
|
// license. You should have received a copy of this license along
|
|
// with this source code in a file named "LICENSE."
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
#ifndef SUBPROCESSWINDOW_H
|
|
#define SUBPROCESSWINDOW_H
|
|
|
|
#include "pandabase.h"
|
|
|
|
// For now, a simple trigger whether to enable the subprocess window
|
|
// support. We only build it on OSX, because this is (presently) the
|
|
// only case where it's useful.
|
|
#ifdef IS_OSX
|
|
#define SUPPORT_SUBPROCESS_WINDOW 1
|
|
#else
|
|
#undef SUPPORT_SUBPROCESS_WINDOW
|
|
#endif
|
|
|
|
#ifdef SUPPORT_SUBPROCESS_WINDOW
|
|
|
|
#include "graphicsWindow.h"
|
|
#include "graphicsBuffer.h"
|
|
#include "texture.h"
|
|
#include "subprocessWindowBuffer.h"
|
|
#include "filename.h"
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Class : SubprocessWindow
|
|
// Description : This is a special "window" that actually renders to
|
|
// an offscreen buffer, copies the pixels to RAM, and
|
|
// then ships them to a parent process via shared memory
|
|
// for rendering to the window.
|
|
//
|
|
// This whole nonsense is necessary because OSX doesn't
|
|
// allow child processes to draw to, or attach windows
|
|
// to, windows created in the parent process. There's a
|
|
// rumor that 10.6 fixes this nonsense; this will remain
|
|
// to be seen.
|
|
////////////////////////////////////////////////////////////////////
|
|
class SubprocessWindow : public GraphicsWindow {
|
|
public:
|
|
SubprocessWindow(GraphicsEngine *engine, GraphicsPipe *pipe,
|
|
const string &name,
|
|
const FrameBufferProperties &fb_prop,
|
|
const WindowProperties &win_prop,
|
|
int flags,
|
|
GraphicsStateGuardian *gsg,
|
|
GraphicsOutput *host);
|
|
virtual ~SubprocessWindow();
|
|
|
|
virtual void process_events();
|
|
|
|
virtual bool begin_frame(FrameMode mode, Thread *current_thread);
|
|
virtual void end_frame(FrameMode mode, Thread *current_thread);
|
|
virtual void begin_flip();
|
|
|
|
virtual void set_properties_now(WindowProperties &properties);
|
|
|
|
protected:
|
|
virtual void close_window();
|
|
virtual bool open_window();
|
|
|
|
private:
|
|
void internal_close_window();
|
|
bool internal_open_window();
|
|
|
|
ButtonHandle translate_key(int &keycode, int os_code, unsigned int flags) const;
|
|
void transition_button(unsigned int flag, ButtonHandle button);
|
|
|
|
private:
|
|
PT(GraphicsBuffer) _buffer;
|
|
PT(Texture) _texture;
|
|
|
|
int _fd;
|
|
size_t _mmap_size;
|
|
Filename _filename;
|
|
SubprocessWindowBuffer *_swbuffer;
|
|
|
|
unsigned int _last_event_flags;
|
|
|
|
public:
|
|
static TypeHandle get_class_type() {
|
|
return _type_handle;
|
|
}
|
|
static void init_type() {
|
|
GraphicsWindow::init_type();
|
|
register_type(_type_handle, "SubprocessWindow",
|
|
GraphicsWindow::get_class_type());
|
|
}
|
|
virtual TypeHandle get_type() const {
|
|
return get_class_type();
|
|
}
|
|
virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
|
|
|
|
private:
|
|
static TypeHandle _type_handle;
|
|
};
|
|
|
|
#include "subprocessWindow.I"
|
|
|
|
#endif // SUPPORT_SUBPROCESS_WINDOW
|
|
|
|
#endif
|
|
|