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///////////////////////////////////////////////////////////////////////////////
// $Id: dscalerapi.h,v 1.2 2004/08/14 03:25:15 vektor Exp $
///////////////////////////////////////////////////////////////////////////////
// Copyright (c) 2000 John Adcock. All rights reserved.
/////////////////////////////////////////////////////////////////////////////
// This header file is free software; you can redistribute it and/or modify it
// under the terms of the GNU Library General Public License as published by
// the Free Software Foundation; either version 2 of the License, or (at your
// option) any later version.
//
// This software is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Library General Public License for more details
///////////////////////////////////////////////////////////////////////////////
/**
* This file is an adaptation of the DS_ApiCommon.h file from DScaler. I have
* removed many of the features which are not required by the tvtime port at
* the current time, and just store here the structures needed by the
* deinterlacers. We may try to converge back with DScaler or KDETV's
* adaptation in the future. -Billy Biggs
*/
#ifndef __DS_APICOMON_H__
#define __DS_APICOMON_H__ 1
#include <stdlib.h>
/** Deinterlace functions return true if the overlay is ready to be displayed.
*/
typedef void (MEMCPY_FUNC)(void* pOutput, const void* pInput, size_t nSize);
#define MAX_PICTURE_HISTORY 10
#define PICTURE_PROGRESSIVE 0
#define PICTURE_INTERLACED_ODD 1
#define PICTURE_INTERLACED_EVEN 2
#define PICTURE_INTERLACED_MASK (PICTURE_INTERLACED_ODD | PICTURE_INTERLACED_EVEN)
/** Structure containing a single field or frame
from the source.
This may be modified
*/
typedef struct
{
// pointer to the start of data for this picture
unsigned char* pData;
// see PICTURE_ flags
unsigned int Flags;
} TPicture;
#define DEINTERLACE_INFO_CURRENT_VERSION 400
/** Structure used to transfer all the information used by plugins
around in one chunk
*/
typedef struct
{
/** The most recent pictures
PictureHistory[0] is always the most recent.
Pointers are NULL if the picture in question isn't valid, e.g. because
the program just started or a picture was skipped.
*/
TPicture* PictureHistory[MAX_PICTURE_HISTORY];
/// Current overlay buffer pointer.
unsigned char *Overlay;
/// Overlay pitch (number of bytes between scanlines).
unsigned int OverlayPitch;
/** Number of bytes of actual data in each scanline. May be less than
OverlayPitch since the overlay's scanlines might have alignment
requirements. Generally equal to FrameWidth * 2.
*/
unsigned int LineLength;
/// Number of pixels in each scanline.
int FrameWidth;
/// Number of scanlines per frame.
int FrameHeight;
/** Number of scanlines per field. FrameHeight / 2, mostly for
cleanliness so we don't have to keep dividing FrameHeight by 2.
*/
int FieldHeight;
/// Function pointer to optimized memcpy function
MEMCPY_FUNC* pMemcpy;
/** distance between lines in image
need not match the pixel width
*/
unsigned int InputPitch;
} TDeinterlaceInfo;
#endif
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