/*
Copyright (c) 2012, Broadcom Europe Ltd
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions are met:
    * Redistributions of source code must retain the above copyright
      notice, this list of conditions and the following disclaimer.
    * Redistributions in binary form must reproduce the above copyright
      notice, this list of conditions and the following disclaimer in the
      documentation and/or other materials provided with the distribution.
    * Neither the name of the copyright holder nor the
      names of its contributors may be used to endorse or promote products
      derived from this software without specific prior written permission.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY
DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/

#ifndef LAUNCHER_H
#define LAUNCHER_H

#include <utils/threads.h>
#include <utils/String8.h>
#include <utils/StrongPointer.h>
#include <SurfaceComposerClient.h>
#include <EGL/egl.h>

/**
 * Android-specific launcher for native graphical application.
 * See runApp().
 */
class Launcher : public android::Thread
{
public:
   /** Entry point function for application-specific code.
    * @param params  Application-specific parameters.
    * @param win     Native window/surface.
    * @return 0 on success; -1 on failure.
    */
   typedef int (*RUN_APP_FN_T)(const void *params, EGLNativeWindowType win);

   /** Run a function in a separate thread.
    * A separate thread is launched to run the function, and a native surface created for
    * that application. 
    * @param name        Application name.
    * @param run_app_fn  Entry point function for application.
    * @param params      Application-specific parameters. This will be bitwise copyable, and
    *                    between C and C++, so don't use pointers, bool or anything else liable
    *                    for problems.
    * @param param_size  Size, in bytes, of the application parameters.
    * @return 0 on success; -1 on failure.
    */
   static int runApp(const char *name, RUN_APP_FN_T run_app_fn, const void *params,
                     size_t param_size);

   Launcher(const char *name, RUN_APP_FN_T run_fn, const void *params, size_t param_size);
   virtual ~Launcher();

   android::sp<android::SurfaceComposerClient> session() const;

protected:
   virtual android::status_t readyToRun();
   virtual bool threadLoop();

private:
   virtual void onFirstRef();

   android::sp<android::SurfaceComposerClient> m_session;
   android::sp<android::SurfaceControl> m_sf_control;
   android::sp<android::Surface> m_sf_surface;

   android::String8 m_name;
   RUN_APP_FN_T m_run_fn;
   android::Vector<unsigned char> m_params;
   int m_result;
};

#endif