76 lines
2.2 KiB
C++
76 lines
2.2 KiB
C++
// $Header: G:/SwDev/WDM/Video/bt848/rcs/Risceng.cpp 1.6 1998/04/29 22:43:37 tomz Exp $
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#include "risceng.h"
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/* Method: RISCEng::CreateProgram
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* Purpose: Creates a first RISC program for a stream (field)
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* Input: aField: VidField - defines what field the program is for
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* ImageSize: SIZE & - defines dimentions of the image
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* dwPitch: DWORD - pitch to be used for data buffer . Useful for producing
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* interlaced images.
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* aFormat: ColorFormat - defines type of data
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* dwBufAddr: DWORD - address of the destination buffer
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* Output: RiscPrgHandle
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*/
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RiscPrgHandle RISCEng::CreateProgram( MSize &ImageSize, DWORD dwPitch,
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ColFmt aFormat, DataBuf &buf, bool Intr, DWORD dwPlanrAdjust, bool rsync )
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{
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// create yet another risc program object
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RISCProgram *YAProgram =
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new RISCProgram( ImageSize, dwPitch, aFormat );
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// and make it create the program itself
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if ( YAProgram->Create( Intr, buf, dwPlanrAdjust, rsync ) != Success ) {
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delete YAProgram;
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YAProgram = NULL;
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}
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return YAProgram;
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}
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/* Method: RISCEng::DestroyProgram
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* Purpose: Removes a program from a chain and destroy it
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* Input: ToDie: RiscPrgHandle - pointer to a program to destroy
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* Output: None
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*/
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void RISCEng::DestroyProgram( RiscPrgHandle ToDie )
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{
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delete ToDie;
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}
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/* Method: RISCEng::ChangeAddress
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* Purpose:
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* Input:
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* Output:
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*/
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void RISCEng::ChangeAddress( RiscPrgHandle prog, DataBuf &buf )
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{
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prog->ChangeAddress( buf );
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}
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/* Method: RISCEng::Chain
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* Purpose: Chains two RISC programs together
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* Input: hParent: RiscPrgHandle - pointer in reality
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* hChild: RiscPrgHandle - pointer in reality
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* Output: None
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*/
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void RISCEng::Chain( RiscPrgHandle hParent, RiscPrgHandle hChild , int ndxParent, int ndxChild)
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{
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DebugOut((2, "*** Linked hParent(%x)(%d) to hChild(%x)(%d)\n", hParent, ndxParent, hChild, ndxChild));
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hParent->SetChain( hChild );
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}
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/* Method: RISCEng::Skip
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* Purpose: Sets the given program so it is bypassed by DMA
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* Input: hToSkip: RiscPrgHandle - pointer in reality
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* Output: None
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* Note: The way things are right now a program will always have a child and a
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* parent, even if it is its own parent and child
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*/
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void RISCEng::Skip( RiscPrgHandle pToSkip )
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{
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pToSkip->Skip();
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}
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