wonx/WonXSystem.c

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/* ここから                                                                  */
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#include "wonx_configure.h"

#include "WonXSystemP.h"
#include "etc.h"

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/* メンバ関数の定義                                                          */
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WWInterrupt WonXSystem_GetWWInterrupt(WonXSystem wonx_system)
{ return (wonx_system->ww_interrupt); }
WWInterrupt WonXSystem_SetWWInterrupt(WonXSystem wonx_system,
				      WWInterrupt ww_interrupt)
{ return (wonx_system->ww_interrupt = ww_interrupt); }

WWTimer WonXSystem_GetWWTimer(WonXSystem wonx_system, int type)
{ return (wonx_system->ww_timer[type]); }
WWTimer WonXSystem_SetWWTimer(WonXSystem wonx_system, int type, WWTimer t)
{ return (wonx_system->ww_timer[type] = t); }

WWTimer WonXSystem_GetWWVBlankTimer(WonXSystem wonx_system)
{ return (WonXSystem_GetWWTimer(wonx_system, 0)); }
WWTimer WonXSystem_SetWWVBlankTimer(WonXSystem wonx_system, WWTimer t)
{ return (WonXSystem_SetWWTimer(wonx_system, 0, t)); }

WWTimer WonXSystem_GetWWVBlankCountUpTimer(WonXSystem wonx_system)
{ return (WonXSystem_GetWWTimer(wonx_system, 1)); }
WWTimer WonXSystem_SetWWVBlankCountUpTimer(WonXSystem wonx_system, WWTimer t)
{ return (WonXSystem_SetWWTimer(wonx_system, 1, t)); }

WWTimer WonXSystem_GetWWHBlankCountUpTimer(WonXSystem wonx_system)
{ return (WonXSystem_GetWWTimer(wonx_system, 2)); }
WWTimer WonXSystem_SetWWHBlankCountUpTimer(WonXSystem wonx_system, WWTimer t)
{ return (WonXSystem_SetWWTimer(wonx_system, 2, t)); }

UNIXTimer WonXSystem_GetUNIXTimer(WonXSystem wonx_system)
{ return (wonx_system->unix_timer); }
UNIXTimer WonXSystem_SetUNIXTimer(WonXSystem wonx_system,
				  UNIXTimer unix_timer)
{ return (wonx_system->unix_timer = unix_timer); }

static int WonXTimer_Callback(WonXSystem wonx_system)
{
  WWTimer ww_timer;
  WWInterrupt ww_interrupt;

  ww_interrupt = WonXSystem_GetWWInterrupt(wonx_system);

  ww_timer = WonXSystem_GetWWVBlankTimer(wonx_system);
  if (WWTimer_IsON(ww_timer)) {
    if (WWTimer_Count(ww_timer))
      WWInterrupt_ExecuteVBlankCallback(ww_interrupt);
  }

  ww_timer = WonXSystem_GetWWVBlankCountUpTimer(wonx_system);
  if (WWTimer_IsON(ww_timer)) {
    if (WWTimer_Count(ww_timer))
      WWInterrupt_ExecuteTimerCountUpCallback(ww_interrupt);
  }

  ww_timer = WonXSystem_GetWWHBlankCountUpTimer(wonx_system);
  if (WWTimer_IsON(ww_timer)) {
    if (WWTimer_Count(ww_timer))
      WWInterrupt_ExecuteHBlankCountUpCallback(ww_interrupt);
  }

  return (0);
}

WonXSystem WonXSystem_Create()
{
  WonXSystem wonx_system;
  WWInterrupt ww_interrupt;
  WWTimer ww_timer;
  UNIXTimer unix_timer;

  wonx_system = (WonXSystem)malloc(sizeof(_WonXSystem));
  if (wonx_system == NULL)
    WonX_Error("WonXSystem_Create", "Cannot allocate memory.");

  ww_interrupt = WWInterrupt_Create();
  if (ww_interrupt == NULL)
    WonX_Error("WonXSystem_Create", "Cannot create WonderWitch interrupt.");
  WonXSystem_SetWWInterrupt(wonx_system, ww_interrupt);

  ww_timer = WWTimer_Create(1, WONX_VBLANK_INTERVAL);
  if (ww_timer == NULL)
    WonX_Error("WonXSystem_Create", "Cannot create WonderWitch VBlank timer.");
  WonXSystem_SetWWVBlankTimer(wonx_system, ww_timer);

  ww_timer = WWTimer_Create(0, WONX_VBLANK_INTERVAL);
  if (ww_timer == NULL)
    WonX_Error("WonXSystem_Create",
	       "Cannot create WonderWitch VBlank count up timer.");
  WonXSystem_SetWWVBlankCountUpTimer(wonx_system, ww_timer);

  ww_timer = WWTimer_Create(0, WONX_HBLANK_INTERVAL);
  if (ww_timer == NULL)
    WonX_Error("WonXSystem_Create",
	       "Cannot create WonderWitch HBlank count up timer.");
  WonXSystem_SetWWHBlankCountUpTimer(wonx_system, ww_timer);

  WWTimer_Reset(WonXSystem_GetWWVBlankTimer(       wonx_system));
  WWTimer_Reset(WonXSystem_GetWWVBlankCountUpTimer(wonx_system));
  WWTimer_Reset(WonXSystem_GetWWHBlankCountUpTimer(wonx_system));

  WWTimer_ON( WonXSystem_GetWWVBlankTimer(       wonx_system));
  WWTimer_OFF(WonXSystem_GetWWVBlankCountUpTimer(wonx_system));
  WWTimer_OFF(WonXSystem_GetWWHBlankCountUpTimer(wonx_system));

  unix_timer = UNIXTimer_Create(1, WONX_TIMER_INTERVAL, wonx_system,
				(UNIXTimerCallBack)WonXTimer_Callback);
  if (unix_timer == NULL)
    WonX_Error("WonXSystem_Create", "Cannot create UNIX timer.");
  WonXSystem_SetUNIXTimer(wonx_system, unix_timer);

  UNIXTimer_ON(unix_timer);

  return (wonx_system);
}

WonXSystem WonXSystem_Destroy(WonXSystem wonx_system)
{
  WWInterrupt wi;
  WWTimer wt;
  UNIXTimer unix_timer;

  if (wonx_system == NULL)
    WonX_Error("WonXSystem_Destroy", "Object is not created.");

  unix_timer = WonXSystem_GetUNIXTimer(wonx_system);

  if (unix_timer)
    UNIXTimer_OFF(unix_timer);

  wt = WonXSystem_GetWWVBlankTimer(wonx_system);
  if (wt) WWTimer_OFF(wt);
  wt = WonXSystem_GetWWVBlankCountUpTimer(wonx_system);
  if (wt) WWTimer_OFF(wt);
  wt = WonXSystem_GetWWHBlankCountUpTimer(wonx_system);
  if (wt) WWTimer_OFF(wt);

  if (unix_timer)
    WonXSystem_SetUNIXTimer(wonx_system, UNIXTimer_Destroy(unix_timer));

  wt = WonXSystem_GetWWVBlankTimer(wonx_system);
  if (wt) WonXSystem_SetWWVBlankTimer(wonx_system, WWTimer_Destroy(wt));
  wt = WonXSystem_GetWWVBlankCountUpTimer(wonx_system);
  if (wt) WonXSystem_SetWWVBlankCountUpTimer(wonx_system, WWTimer_Destroy(wt));
  wt = WonXSystem_GetWWHBlankCountUpTimer(wonx_system);
  if (wt) WonXSystem_SetWWHBlankCountUpTimer(wonx_system, WWTimer_Destroy(wt));

  wi = WonXSystem_GetWWInterrupt(wonx_system);
  if (wi) WonXSystem_SetWWInterrupt(wonx_system, WWInterrupt_Destroy(wi));

  free(wonx_system);

  return (NULL);
}

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/* ここまで                                                                  */
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/* End of File.                                                              */
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