292 lines
8.5 KiB
C++
292 lines
8.5 KiB
C++
/*************************************************************************/
|
|
/* File : VideoLoader.cpp */
|
|
/* */
|
|
/* Author : Leïla AIT KACI */
|
|
/* Last Modification : 28/05/03 */
|
|
/*************************************************************************/
|
|
#include "CKAll.h"
|
|
#include "CKVideo.h"
|
|
#include "CKVideoManager.h"
|
|
|
|
CKObjectDeclaration* FillBehaviorVideoLoaderDecl ();
|
|
CKERROR CreateVideoLoaderProto (CKBehaviorPrototype **);
|
|
int VideoLoader (const CKBehaviorContext& BehContext);
|
|
CKERROR VideoLoaderCB (const CKBehaviorContext& BehContext);
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Defines
|
|
//////////////////////////////////////////////////////////////////////
|
|
#define BB_NAME "Video Loader"
|
|
#define BB_DESC "Expose loading control on a video."
|
|
#define BB_CAT "Video/Basic"
|
|
#define BB_VERSION 0x00010000
|
|
#define BB_TARGET CKCID_VIDEO
|
|
|
|
#define RETURN_IF_FAILED(res) \
|
|
if ( res != CK_OK ) { \
|
|
XString err = video->GetErrorDescrition(res); \
|
|
beh->SetOutputParameterValue(POUT_ERROR, err.Str(), err.Length() + 1 ); \
|
|
beh->ActivateOutput(OUT_ERROR); \
|
|
return CKBR_OK; \
|
|
}
|
|
|
|
#define OUTPUT_IF_FAILED(res) \
|
|
if ( res != CK_OK ) { \
|
|
XString err = video->GetErrorDescrition(res); \
|
|
beh->SetOutputParameterValue(POUT_ERROR, err.Str(), err.Length() + 1 ); \
|
|
beh->ActivateOutput(OUT_ERROR); \
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
// Enums for Parameter's Indexes
|
|
//////////////////////////////////////////////////////////////////////
|
|
enum BB_IN
|
|
{
|
|
IN_LOAD,
|
|
IN_UNLOAD
|
|
};
|
|
|
|
enum BB_OUT
|
|
{
|
|
OUT_LOAD,
|
|
OUT_UNLOAD,
|
|
OUT_ERROR
|
|
};
|
|
|
|
enum BB_LOC
|
|
{
|
|
};
|
|
|
|
enum BB_PIN
|
|
{
|
|
};
|
|
|
|
enum BB_POUT
|
|
{
|
|
POUT_STATE,
|
|
POUT_ERROR
|
|
};
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
CKObjectDeclaration *FillBehaviorVideoLoaderDecl()
|
|
{
|
|
CKObjectDeclaration *od = CreateCKObjectDeclaration(BB_NAME);
|
|
od->SetType(CKDLL_BEHAVIORPROTOTYPE);
|
|
od->SetCompatibleClassId(BB_TARGET);
|
|
od->SetDescription(BB_DESC);
|
|
od->SetVersion(BB_VERSION);
|
|
od->SetCategory(BB_CAT);
|
|
od->SetAuthorName("Virtools");
|
|
od->SetAuthorGuid(VIRTOOLS_GUID);
|
|
od->SetGuid(CKGUID(0x7b3e1eea,0x44be0a98));
|
|
od->SetCreationFunction(CreateVideoLoaderProto);
|
|
|
|
return od;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
CKERROR CreateVideoLoaderProto(CKBehaviorPrototype** pproto)
|
|
{
|
|
CKBehaviorPrototype *proto = CreateCKBehaviorPrototype(BB_NAME);
|
|
if(!proto) return CKERR_OUTOFMEMORY;
|
|
|
|
//--- Inputs declaration
|
|
proto->DeclareInput("Load");
|
|
proto->DeclareInput("Unload");
|
|
|
|
//--- Outputs declaration
|
|
proto->DeclareOutput("Loaded");
|
|
proto->DeclareOutput("Unloaded");
|
|
proto->DeclareOutput("Error");
|
|
|
|
//----- Input Parameters Declaration
|
|
|
|
//--- Output Parameters Declaration
|
|
proto->DeclareOutParameter("State", CKPGUID_VIDEOSTATE, "Unloaded");
|
|
proto->DeclareOutParameter("Error", CKPGUID_STRING);
|
|
|
|
//---- Settings Declaration
|
|
|
|
proto->SetFlags(CK_BEHAVIORPROTOTYPE_NORMAL);
|
|
proto->SetBehaviorFlags((CK_BEHAVIOR_FLAGS)(CKBEHAVIOR_TARGETABLE));
|
|
proto->SetFunction(VideoLoader);
|
|
proto->SetBehaviorCallbackFct(VideoLoaderCB, CKCB_BEHAVIORLOAD|CKCB_BEHAVIORATTACH, NULL);
|
|
|
|
*pproto = proto;
|
|
return CK_OK;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
int VideoLoader(const CKBehaviorContext& BehContext)
|
|
{
|
|
CKContext* ctx = BehContext.Context;
|
|
CKBehavior* beh = BehContext.Behavior;
|
|
|
|
CKVideo* video = (CKVideo*) beh->GetTarget();
|
|
if ( !video ) {
|
|
XString err = "Invalid Video";
|
|
beh->SetOutputParameterValue(POUT_ERROR, err.Str(), err.Length() + 1 );
|
|
beh->ActivateOutput(OUT_ERROR);
|
|
return CKBR_OK;
|
|
}
|
|
|
|
// Get previous and current state
|
|
CK_VIDEO_STATE PreviousState;
|
|
CK_VIDEO_STATE State = video->GetState();
|
|
beh->GetOutputParameterValue(POUT_STATE, &PreviousState);
|
|
beh->SetOutputParameterValue(POUT_STATE, &State);
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
if ( beh->IsInputActive(IN_LOAD) )
|
|
{
|
|
beh->ActivateInput(IN_LOAD, FALSE);
|
|
|
|
switch ( State )
|
|
{
|
|
////////////////////////
|
|
case CK_VIDEO_INVALID:
|
|
{
|
|
// If previous state is loading or unloading, it means the BB were
|
|
// active previously to this call. It therefore means that we already
|
|
// tried loading and it failed !
|
|
if ( (PreviousState == CK_VIDEO_LOADING) ||
|
|
(PreviousState == CK_VIDEO_UNLOADING) )
|
|
RETURN_IF_FAILED( video->GetLastError() );
|
|
|
|
// And, we can load the video
|
|
RETURN_IF_FAILED( video->Load() );
|
|
beh->ActivateInput(IN_LOAD, TRUE);
|
|
}
|
|
break;
|
|
|
|
////////////////////////
|
|
case CK_VIDEO_UNLOADING:
|
|
{
|
|
OUTPUT_IF_FAILED( CK_VIDEOERR_UNLOADING );
|
|
|
|
// If we were not previously loading or unloading,
|
|
// It means the BB were not activated prior to this call,
|
|
// so, we return an error as we can't unload while loading.
|
|
if ( (PreviousState != CK_VIDEO_LOADING) &&
|
|
(PreviousState != CK_VIDEO_UNLOADING) ) {
|
|
beh->SetOutputParameterValue(POUT_STATE, &PreviousState);
|
|
return CKBR_OK;
|
|
} else
|
|
beh->ActivateInput(IN_LOAD, TRUE);
|
|
}
|
|
break;
|
|
|
|
////////////////////////
|
|
case CK_VIDEO_LOADING:
|
|
beh->ActivateInput(IN_LOAD, TRUE);
|
|
break;
|
|
|
|
////////////////////////
|
|
case CK_VIDEO_STOPPED:
|
|
case CK_VIDEO_PLAYING:
|
|
case CK_VIDEO_PAUSED:
|
|
beh->SetOutputParameterValue(POUT_ERROR, "Success", 8);
|
|
beh->ActivateOutput(OUT_LOAD);
|
|
return CKBR_OK;
|
|
}
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////////
|
|
else if ( beh->IsInputActive(IN_UNLOAD) )
|
|
{
|
|
beh->ActivateInput(IN_UNLOAD, FALSE);
|
|
|
|
switch ( State )
|
|
{
|
|
////////////////////////
|
|
case CK_VIDEO_INVALID:
|
|
beh->SetOutputParameterValue(POUT_ERROR, "Success", 8);
|
|
beh->ActivateOutput(OUT_UNLOAD);
|
|
return CKBR_OK;
|
|
|
|
////////////////////////
|
|
case CK_VIDEO_UNLOADING:
|
|
beh->ActivateInput(IN_UNLOAD, TRUE);
|
|
break;
|
|
|
|
////////////////////////
|
|
case CK_VIDEO_LOADING:
|
|
{
|
|
OUTPUT_IF_FAILED( CK_VIDEOERR_LOADING );
|
|
|
|
// If we were not previously loading or unloading,
|
|
// It means the BB were not activated prior to this call,
|
|
// so, we return an error as we can't unload while loading.
|
|
if ( (PreviousState != CK_VIDEO_LOADING) &&
|
|
(PreviousState != CK_VIDEO_UNLOADING) )
|
|
{
|
|
// As we assume the previous state cannot be loading or unloading
|
|
// when exiting the BB, we need to reset it before to leave.
|
|
beh->SetOutputParameterValue(POUT_STATE, &PreviousState);
|
|
return CKBR_OK;
|
|
} else
|
|
beh->ActivateInput(IN_UNLOAD, TRUE);
|
|
}
|
|
break;
|
|
|
|
////////////////////////
|
|
case CK_VIDEO_STOPPED:
|
|
case CK_VIDEO_PLAYING:
|
|
case CK_VIDEO_PAUSED:
|
|
{
|
|
// If previous state is loading or unloading, it means the BB were
|
|
// active previously to this call. It therefore means that we already
|
|
// tried unloading and it failed !
|
|
if ( (PreviousState == CK_VIDEO_LOADING) ||
|
|
(PreviousState == CK_VIDEO_UNLOADING) )
|
|
{
|
|
// As we assume the previous state cannot be loading or unloading
|
|
// when exiting the BB, we need to reset it before to leave.
|
|
beh->SetOutputParameterValue(POUT_STATE, &PreviousState);
|
|
RETURN_IF_FAILED( video->GetLastError() );
|
|
}
|
|
|
|
// And we can unload the video
|
|
RETURN_IF_FAILED( video->Unload() );
|
|
beh->ActivateInput(IN_UNLOAD, TRUE);
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
return CKBR_ACTIVATENEXTFRAME;
|
|
}
|
|
|
|
//////////////////////////////////////////////////////////////////////
|
|
//////////////////////////////////////////////////////////////////////
|
|
CKERROR VideoLoaderCB(const CKBehaviorContext& BehContext)
|
|
{
|
|
CKContext* ctx = BehContext.Context;
|
|
CKBehavior* beh = BehContext.Behavior;
|
|
|
|
switch (BehContext.CallbackMessage)
|
|
{
|
|
case CKM_BEHAVIORLOAD:
|
|
case CKM_BEHAVIORATTACH:
|
|
{
|
|
CK_VIDEO_STATE state = CK_VIDEO_INVALID;
|
|
beh->SetOutputParameterValue(POUT_STATE, &state);
|
|
}
|
|
break;
|
|
|
|
case CKM_BEHAVIORDELETE: break;
|
|
case CKM_BEHAVIORDETACH: break;
|
|
case CKM_BEHAVIORACTIVATESCRIPT: break;
|
|
case CKM_BEHAVIORDEACTIVATESCRIPT: break;
|
|
case CKM_BEHAVIORNEWSCENE: break;
|
|
|
|
default: return CKBR_OK;
|
|
}
|
|
return CKBR_OK;
|
|
}
|