/* bzflag
 * Copyright (c) 1993-2018 Tim Riker
 *
 * This package is free software;  you can redistribute it and/or
 * modify it under the terms of the license found in the file
 * named COPYING that should have accompanied this file.
 *
 * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 */

#include "BeOSDisplay.h"
#include "BeOSWindow.h"
#include "BzfEvent.h"
#include <OS.h>
#include <stdio.h>
#include <string.h>

BeOSDisplay::BeOSDisplay(const char* displayName, const char*) :
    BzfDisplay()
{
    printf("BeOSDisplay::BeOSDisplay()\n");
    /* this port will be checked by BeOSDisplay for events, and fed by the BWindow */
    eventPort = create_port(50, "bzflag_event_port"); /* should check for errors */

    // get resolutions
    bScreen = new BScreen;
    if (isValid())
    {
        int numModes, currentMode;
        ResInfo** resInfo = NULL;
        display_mode dm;

        // if no modes then make default
        if (!resInfo)
        {
            resInfo = new ResInfo*[1];
            bScreen->GetMode(&dm);
            resInfo[0] = new ResInfo("default", dm.virtual_width, dm.virtual_height, 0);
            numModes = 1;
            currentMode = 0;
        }
        printf("default rez\n");
        // register modes
        initResolutions(resInfo, numModes, currentMode);
    }
}

BeOSDisplay::~BeOSDisplay()
{
    printf("BeOSDisplay::~BeOSDisplay()\n");
    /* some cleanup */
    delete_port(eventPort);

    //setDefaultResolution();
    delete bScreen;
}

bool                    BeOSDisplay::isValid() const
{
    printf("BeOSDisplay::isValid() %d\n", (int)bScreen->IsValid());
    return bScreen->IsValid();
}

bool                    BeOSDisplay::isEventPending() const
{
    if (beosWin && beosWin->currentOglContext == find_thread(NULL))
        beosWin->yieldCurrent();
    //  snooze(10000);
    return (port_buffer_size_etc(eventPort, B_TIMEOUT, 0LL) > 0);
}

bool                    BeOSDisplay::peekEvent(BzfEvent& event) const
{
    return false;
}

bool                    BeOSDisplay::getEvent(BzfEvent& event) const
{
    //printf("BeOSDisplay::getEvent()\n");
    bool is_current_ogl = false;
    status_t err;
    int32 what;
    if (beosWin && beosWin->currentOglContext == find_thread(NULL))
    {
        is_current_ogl = true;
        beosWin->releaseCurrent();
    }
    err = read_port_etc(eventPort, &what, (void *)&event, sizeof(BzfEvent), B_TIMEOUT, 0LL);
    if (is_current_ogl)
        beosWin->makeCurrent();
    //printf("<BeOSDisplay::getEvent()\n");
    return (err >= B_OK);
}

void                BeOSDisplay::postBzfEvent(BzfEvent &event)
{
    int32 what = 'BzfE';
    write_port_etc(eventPort, what, (void *)&event, sizeof(BzfEvent), B_TIMEOUT, 10000LL);
}

bool                    BeOSDisplay::doSetDefaultResolution()
{
    return true;
}

bool                    BeOSDisplay::doSetResolution(int index)
{
    // try setting the format
    const bool changed  = true;

    return changed;
}


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