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path: root/src/skel/skeleton.cpp
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#include "common.h"
#include "patcher.h"

#include <stdio.h>
#include <math.h>
#include <ctype.h>
#include <string.h>

#include "rwcore.h"

#include "skeleton.h"
#include "platform.h"



static RwBool               DefaultVideoMode = TRUE;

//RsGlobalType                RsGlobal;
RsGlobalType &RsGlobal = *(RsGlobalType*)0x8F4360;

////////////////////////////////////////////////////////////////////////
WRAPPER RwUInt32 psTimer(void) { EAXJMP(0x580CE0); }

WRAPPER RwBool psInitialise(void) { EAXJMP(0x581180); }
WRAPPER void   psTerminate(void) { EAXJMP(0x581460); }
WRAPPER void psCameraShowRaster(RwCamera *camera) { EAXJMP(0x580CA0); }
WRAPPER RwBool psCameraBeginUpdate(RwCamera *camera) { EAXJMP(0x580C70); }
WRAPPER void psMouseSetPos(RwV2d *pos) { EAXJMP(0x580D20); }
WRAPPER RwBool psSelectDevice(RwBool useDefault) { EAXJMP(0x581D80); }
WRAPPER RwBool psInstallFileSystem(void) { EAXJMP(0x580E20); }
WRAPPER RwBool psNativeTextureSupport(void) { EAXJMP(0x580E30); }
////////////////////////////////////////////////////////////////////////
_TODO("psGetMemoryFunctions");
RwMemoryFunctions*
psGetMemoryFunctions(void)
{
    return 0;
}

/*
 *****************************************************************************
 */
RwUInt32
RsTimer(void)
{
    return psTimer();
}


/*
 *****************************************************************************
 */
void
RsCameraShowRaster(RwCamera * camera)
{
    psCameraShowRaster(camera);

    return;
}

/*
 *****************************************************************************
 */
RwBool
RsCameraBeginUpdate(RwCamera * camera)
{
	return psCameraBeginUpdate(camera);
}

/*
 *****************************************************************************
 */
RwBool
RsRegisterImageLoader(void)
{
    return TRUE;
}

/*
 *****************************************************************************
 */
static              RwBool
RsSetDebug(void)
{
    return TRUE;
}

/*
 *****************************************************************************
 */
void
RsMouseSetPos(RwV2d * pos)
{
    psMouseSetPos(pos);

    return;
}

/*
 *****************************************************************************
 */
RwBool
RsSelectDevice(void)
{
    return psSelectDevice(DefaultVideoMode);
}

/*
 *****************************************************************************
 */
RwBool
RsInputDeviceAttach(RsInputDeviceType inputDevice,
                    RsInputEventHandler inputEventHandler)
{
    switch (inputDevice)
    {
        case rsKEYBOARD:
            {
                RsGlobal.keyboard.inputEventHandler = inputEventHandler;
                RsGlobal.keyboard.used = TRUE;
                break;
            }
        case rsMOUSE:
            {
                RsGlobal.mouse.inputEventHandler = inputEventHandler;
                RsGlobal.mouse.used = TRUE;
                break;
            }
        case rsPAD:
            {
                RsGlobal.pad.inputEventHandler = inputEventHandler;
                RsGlobal.pad.used = TRUE;
                break;
            }
        default:
            {
                return FALSE;
            }
    }

    return TRUE;
}


/*
 *****************************************************************************
 */
static RwBool
rsCommandLine(RwChar *arg)
{
    RsEventHandler(rsFILELOAD, arg);

    return TRUE;
}


/*
 *****************************************************************************
 */
static RwBool
rsPreInitCommandLine(RwChar *arg)
{
    if( !strcmp(arg, RWSTRING("-vms")) )
    {
        DefaultVideoMode = FALSE;

        return TRUE;
    }

    return FALSE;
}

/*
 *****************************************************************************
 */
RsEventStatus
RsKeyboardEventHandler(RsEvent event, void *param)
{
    if (RsGlobal.keyboard.used)
    {
        return RsGlobal.keyboard.inputEventHandler(event, param);
    }

    return rsEVENTNOTPROCESSED;
}

/*
 *****************************************************************************
 */
RsEventStatus
RsPadEventHandler(RsEvent event, void *param)
{
    if (RsGlobal.pad.used)
    {
        return RsGlobal.pad.inputEventHandler(event, param);
    }

    return rsEVENTNOTPROCESSED;
}

/*
 *****************************************************************************
 */
RsEventStatus
RsEventHandler(RsEvent event, void *param)
{
    RsEventStatus       result;
    RsEventStatus       es;
  
    /*
     * Give the application an opportunity to override any events...
     */
    es = AppEventHandler(event, param);

    /*
     * We never allow the app to replace the quit behaviour,
     * only to intercept...
     */
    if (event == rsQUITAPP)
    {
        /*
         * Set the flag which causes the event loop to exit...
         */
        RsGlobal.quit = TRUE;
    }

    if (es == rsEVENTNOTPROCESSED)
    {
        switch (event)
        {
            case rsSELECTDEVICE:
                result =
                    (RsSelectDevice()? rsEVENTPROCESSED : rsEVENTERROR);
                break;

            case rsCOMMANDLINE:
                result = (rsCommandLine((RwChar *) param) ?
                          rsEVENTPROCESSED : rsEVENTERROR);
                break;
            case rsPREINITCOMMANDLINE:
                result = (rsPreInitCommandLine((RwChar *) param) ?
                          rsEVENTPROCESSED : rsEVENTERROR);
                break;
            case rsINITDEBUG:
                result =
                    (RsSetDebug()? rsEVENTPROCESSED : rsEVENTERROR);
                break;

            case rsREGISTERIMAGELOADER:
                result = (RsRegisterImageLoader()?
                          rsEVENTPROCESSED : rsEVENTERROR);
                break;

            case rsRWTERMINATE:
                RsRwTerminate();
                result = (rsEVENTPROCESSED);
                break;

            case rsRWINITIALISE:
                result = (RsRwInitialise(param) ?
                          rsEVENTPROCESSED : rsEVENTERROR);
                break;

            case rsTERMINATE:
                RsTerminate();
                result = (rsEVENTPROCESSED);
                break;

            case rsINITIALISE:
                result =
                    (RsInitialise()? rsEVENTPROCESSED : rsEVENTERROR);
                break;

            default:
                result = (es);
                break;

        }
    }
    else
    {
        result = (es);
    }

    return result;
}

/*
 *****************************************************************************
 */
void
RsRwTerminate(void)
{
    /* Close RenderWare */

    RwEngineStop();
    RwEngineClose();
    RwEngineTerm();

    return;
}

/*
 *****************************************************************************
 */
RwBool
RsRwInitialise(void *displayID)
{
    RwEngineOpenParams  openParams;
   
    /*
     * Start RenderWare...
     */
	 
	if (!RwEngineInit(psGetMemoryFunctions(), 0, rsRESOURCESDEFAULTARENASIZE))
    {
        return (FALSE);
    }

    /*
     * Install any platform specific file systems...
     */
    psInstallFileSystem();
	
    /*
     * Initialize debug message handling...
     */
    RsEventHandler(rsINITDEBUG, NULL);

    /*
     * Attach all plugins...
     */
    if (RsEventHandler(rsPLUGINATTACH, NULL) == rsEVENTERROR)
    {
        return (FALSE);
    }

    /*
     * Attach input devices...
     */
    if (RsEventHandler(rsINPUTDEVICEATTACH, NULL) == rsEVENTERROR)
    {
        return (FALSE);
    }
	
	openParams.displayID = displayID;

    if (!RwEngineOpen(&openParams))
    {
        RwEngineTerm();
        return (FALSE);
    }
	
	if (RsEventHandler(rsSELECTDEVICE, displayID) == rsEVENTERROR)
    {
        RwEngineClose();
        RwEngineTerm();
        return (FALSE);
    }
	
	if (!RwEngineStart())
    {
        RwEngineClose();
        RwEngineTerm();
        return (FALSE);
    }

    /*
     * Register loaders for an image with a particular file extension...
     */
    RsEventHandler(rsREGISTERIMAGELOADER, NULL);

    psNativeTextureSupport();

    RwTextureSetMipmapping(FALSE);
	RwTextureSetAutoMipmapping(FALSE);

    return TRUE;
}

/*
 *****************************************************************************
 */
void
RsTerminate(void)
{
    psTerminate();

    return;
}

/*
 *****************************************************************************
 */
RwBool
RsInitialise(void)
{
    /*
     * Initialize Platform independent data...
     */
    RwBool              result;

    RsGlobal.appName = RWSTRING("GTA3");
    RsGlobal.maximumWidth = DEFAULT_SCREEN_WIDTH;
	RsGlobal.maximumHeight = DEFAULT_SCREEN_HEIGHT;
	RsGlobal.width = DEFAULT_SCREEN_WIDTH;
    RsGlobal.height = DEFAULT_SCREEN_HEIGHT;
	
	RsGlobal.maxFPS = 30;
	 
    RsGlobal.quit = FALSE;

    /* setup the keyboard */
    RsGlobal.keyboard.inputDeviceType = rsKEYBOARD;
    RsGlobal.keyboard.inputEventHandler = 0;
    RsGlobal.keyboard.used = FALSE;

    /* setup the mouse */
    RsGlobal.mouse.inputDeviceType = rsMOUSE;
    RsGlobal.mouse.inputEventHandler = 0;
    RsGlobal.mouse.used = FALSE;

    /* setup the pad */
    RsGlobal.pad.inputDeviceType = rsPAD;
    RsGlobal.pad.inputEventHandler = 0;
    RsGlobal.pad.used = FALSE;

    result = psInitialise();

    return result;
}




STARTPATCHES
	InjectHook(0x584890, RsTimer, PATCH_JUMP);
	InjectHook(0x5848A0, RsCameraShowRaster, PATCH_JUMP);
	InjectHook(0x5848B0, RsCameraBeginUpdate, PATCH_JUMP);
	InjectHook(0x5848C0, RsRegisterImageLoader, PATCH_JUMP);
	InjectHook(0x5848D0, RsSetDebug, PATCH_JUMP);
	InjectHook(0x5848E0, RsMouseSetPos, PATCH_JUMP);
	InjectHook(0x5848F0, RsSelectDevice, PATCH_JUMP);
	InjectHook(0x584900, RsInputDeviceAttach, PATCH_JUMP);
	InjectHook(0x584960, rsCommandLine, PATCH_JUMP);
	InjectHook(0x584980, rsPreInitCommandLine, PATCH_JUMP);
	InjectHook(0x5849C0, RsKeyboardEventHandler, PATCH_JUMP);
	InjectHook(0x5849F0, RsPadEventHandler, PATCH_JUMP);
	InjectHook(0x584A20, RsEventHandler, PATCH_JUMP);
	InjectHook(0x584B30, RsRwTerminate, PATCH_JUMP);
	InjectHook(0x584B40, RsRwInitialise, PATCH_JUMP);
	InjectHook(0x584C30, RsTerminate, PATCH_JUMP);
	InjectHook(0x584C40, RsInitialise, PATCH_JUMP);
ENDPATCHES