528 lines
14 KiB
C
528 lines
14 KiB
C
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/****************************************************************************
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*
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* DRAWPROC.C
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*
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* Standard AVI drawing handler.
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*
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* InstallAVIDrawHandler()
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*
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* Copyright (c) 1992 Microsoft Corporation. All Rights Reserved.
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*
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* You have a royalty-free right to use, modify, reproduce and
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* distribute the Sample Files (and/or any modified version) in
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* any way you find useful, provided that you agree that
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* Microsoft has no warranty obligations or liability for any
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* Sample Application Files which are modified.
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*
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***************************************************************************/
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#include <win32.h>
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#define NOAVIFILE
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#include <vfw.h>
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#include "common.h"
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#include "mciavi.h"
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#define FOURCC_VIDS mmioFOURCC('v','i','d','s')
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#define FOURCC_AVIDraw mmioFOURCC('D','R','A','W')
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#define VERSION_AVIDraw 0x00010000 // 1.00
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#ifdef DEBUG
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HDRAWDIB ghdd;
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#endif
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#ifndef HUGE
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#define HUGE _huge
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#endif
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/***************************************************************************
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***************************************************************************/
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typedef struct {
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HDRAWDIB hdd;
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HDC hdc; // HDC to draw to
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int xDst; // destination rectangle
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int yDst;
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int dxDst;
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int dyDst;
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int xSrc; // source rectangle
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int ySrc;
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int dxSrc;
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int dySrc;
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BOOL fBackground;
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BOOL fRle;
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DWORD biSizeImage;
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BOOL fNeedUpdate;
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LONG rate; // playback rate (uSec / frame)
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} INSTINFO, *PINSTINFO;
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// static stuff in this file.
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LONG_PTR FAR PASCAL _loadds ICAVIDrawProc(DWORD_PTR id, HDRVR hDriver, UINT uiMessage, LPARAM lParam1, LPARAM lParam2);
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static LONG_PTR AVIDrawOpen(ICOPEN FAR * icopen);
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static LONG AVIDrawClose(PINSTINFO pi);
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static LONG AVIDrawGetInfo(ICINFO FAR *icinfo, LONG lSize);
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static LONG AVIDrawQuery(PINSTINFO pi, LPBITMAPINFOHEADER lpbiIn);
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static LONG AVIDrawSuggestFormat(PINSTINFO pi, ICDRAWSUGGEST FAR *lpicd, LONG cbicd);
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STATICFN LONG AVIDrawBegin(PINSTINFO pi, ICDRAWBEGIN FAR *lpicd, LONG cbicd);
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STATICFN LONG AVIDraw(PINSTINFO pi, ICDRAW FAR *lpicd, LONG cbicd);
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static LONG AVIDrawEnd(PINSTINFO pi);
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static LONG AVIDrawChangePalette(PINSTINFO pi, LPBITMAPINFOHEADER lpbi);
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/***************************************************************************
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***************************************************************************/
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LONG_PTR FAR PASCAL _loadds ICAVIDrawProc(DWORD_PTR id, HDRVR hDriver, UINT uiMessage, LPARAM lParam1, LPARAM lParam2)
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{
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INSTINFO *pi = (INSTINFO *)id;
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switch (uiMessage)
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{
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case DRV_LOAD:
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case DRV_FREE:
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return 1;
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/*********************************************************************
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open
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*********************************************************************/
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case DRV_OPEN:
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if (lParam2 == 0L)
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return 1;
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return AVIDrawOpen((ICOPEN FAR *)lParam2);
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case DRV_CLOSE:
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return AVIDrawClose(pi);
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/*********************************************************************
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Configure/Info messages
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*********************************************************************/
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case DRV_QUERYCONFIGURE: // configuration from drivers applet
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return 0;
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case DRV_CONFIGURE:
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return 1;
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case ICM_CONFIGURE:
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case ICM_ABOUT:
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return ICERR_UNSUPPORTED;
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/*********************************************************************
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state messages
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*********************************************************************/
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case ICM_GETSTATE:
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case ICM_SETSTATE:
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return 0L;
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// case ICM_GETINFO:
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// return AVIDrawGetInfo((ICINFO FAR *)lParam1, lParam2);
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/*********************************************************************
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decompress messages
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*********************************************************************/
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case ICM_DRAW_QUERY:
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return AVIDrawQuery(pi, (LPBITMAPINFOHEADER)lParam1);
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case ICM_DRAW_SUGGESTFORMAT:
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return AVIDrawSuggestFormat(pi, (ICDRAWSUGGEST FAR *) lParam1, (LONG) lParam2);
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case ICM_DRAW_BEGIN:
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return AVIDrawBegin(pi, (ICDRAWBEGIN FAR *) lParam1, (LONG) lParam2);
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case ICM_DRAW_REALIZE:
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pi->hdc = (HDC) lParam1;
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if (!pi->hdc || !pi->hdd)
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break;
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pi->fBackground = (BOOL) lParam2;
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return DrawDibRealize(pi->hdd, pi->hdc, pi->fBackground);
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case ICM_DRAW_GET_PALETTE:
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if (!pi->hdd)
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break;
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return (LONG_PTR) DrawDibGetPalette(pi->hdd);
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case ICM_DRAW:
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return AVIDraw(pi, (ICDRAW FAR *)lParam1, (LONG) lParam2);
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case ICM_DRAW_CHANGEPALETTE:
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return AVIDrawChangePalette(pi, (LPBITMAPINFOHEADER) lParam1);
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case ICM_DRAW_END:
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return AVIDrawEnd(pi);
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case ICM_DRAW_START:
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return DrawDibStart(pi->hdd, pi->rate);
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case ICM_DRAW_STOP:
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return DrawDibStop(pi->hdd);
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/*********************************************************************
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standard driver messages
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*********************************************************************/
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case DRV_DISABLE:
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case DRV_ENABLE:
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return 1;
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case DRV_INSTALL:
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case DRV_REMOVE:
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return 1;
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}
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return ICERR_UNSUPPORTED;
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}
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/*****************************************************************************
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*
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* AVIDrawOpen() is called from the DRV_OPEN message
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*
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****************************************************************************/
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static LONG_PTR AVIDrawOpen(ICOPEN FAR * icopen)
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{
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INSTINFO * pinst;
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if (icopen->dwFlags & ICMODE_COMPRESS)
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return 0;
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if (icopen->dwFlags & ICMODE_DECOMPRESS)
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return 0;
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pinst = (INSTINFO *)LocalAlloc(LPTR, sizeof(INSTINFO));
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if (!pinst)
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{
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icopen->dwError = ICERR_MEMORY;
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return 0;
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}
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DPF2(("*** AVIDrawOpen()\n"));
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//
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// init structure
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//
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pinst->hdd = DrawDibOpen();
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#ifdef DEBUG
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// hack: put the hdd where FindDrawDevice can find it
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ghdd = pinst->hdd;
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#endif
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//
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// return success.
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//
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icopen->dwError = ICERR_OK;
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return (LONG_PTR) (UINT_PTR) pinst;
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}
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/*****************************************************************************
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*
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* Close() is called on the DRV_CLOSE message.
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*
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****************************************************************************/
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static LONG AVIDrawClose(PINSTINFO pi)
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{
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DPF2(("*** AVIDrawClose()\n"));
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if (pi->hdd) {
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DrawDibClose(pi->hdd);
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}
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LocalFree((HLOCAL) pi);
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return 1;
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}
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#if 0
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/*****************************************************************************
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*
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* AVIDrawGetInfo() implements the ICM_GETINFO message
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*
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****************************************************************************/
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static LONG AVIDrawGetInfo(ICINFO FAR *icinfo, LONG lSize)
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{
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if (icinfo == NULL)
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return sizeof(ICINFO);
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if (lSize < sizeof(ICINFO))
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return 0;
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icinfo->dwSize = sizeof(ICINFO);
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icinfo->fccType = FOURCC_VIDS;
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icinfo->fccHandler = FOURCC_AVIDraw;
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icinfo->dwFlags = VIDCF_DRAW; // supports inter-frame
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icinfo->dwVersion = VERSION_AVIDraw;
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icinfo->dwVersionICM = ICVERSION;
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icinfo->szName[0] = 0;
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icinfo->szDescription[0]= 0;
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return sizeof(ICINFO);
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}
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#endif
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/*****************************************************************************
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*
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* AVIDrawQuery() implements ICM_DRAW_QUERY
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*
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****************************************************************************/
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static LONG AVIDrawQuery(PINSTINFO pi,
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LPBITMAPINFOHEADER lpbiIn)
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{
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//
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// determine if the input DIB data is in a format we like.
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//
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if (lpbiIn == NULL)
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return ICERR_BADFORMAT;
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//
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// determine if the input DIB data is in a format we like.
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//
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// !!! Do we need a DrawDibQuery or something here to let this handle
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// any compressed format?
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#ifdef DRAWDIBNODECOMPRESS
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if (lpbiIn->biCompression != BI_RGB &&
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#if 0
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!(lpbiIn->biBitCount == 8 && lpbiIn->biCompression == BI_RLE8))
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#else
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1)
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#endif
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return ICERR_BADFORMAT;
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#endif
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return ICERR_OK;
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}
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static LONG AVIDrawSuggestFormat(PINSTINFO pi, ICDRAWSUGGEST FAR *lpicd, LONG cbicd)
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{
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HIC hic;
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if (lpicd->lpbiSuggest == NULL)
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return sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
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hic = ICGetDisplayFormat(NULL, lpicd->lpbiIn, lpicd->lpbiSuggest,
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0, lpicd->dxDst, lpicd->dyDst);
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if (hic)
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ICClose(hic);
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return sizeof(BITMAPINFOHEADER) + lpicd->lpbiSuggest->biClrUsed * sizeof(RGBQUAD);
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}
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/*****************************************************************************
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*
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* AVIDrawBegin() implements ICM_DRAW_BEGIN
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*
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****************************************************************************/
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STATICFN LONG AVIDrawBegin(PINSTINFO pi, ICDRAWBEGIN FAR *lpicd, LONG cbicd)
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{
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LONG l;
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UINT wFlags;
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if (lpicd->dwFlags & ICDRAW_FULLSCREEN)
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return ICERR_UNSUPPORTED;
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l = AVIDrawQuery(pi, lpicd->lpbi);
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if ((l != ICERR_OK) || (lpicd->dwFlags & ICDRAW_QUERY))
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return l;
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// Copy over whatever we want to remember
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pi->xDst = lpicd->xDst;
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pi->yDst = lpicd->yDst;
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pi->dxDst = lpicd->dxDst;
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pi->dyDst = lpicd->dyDst;
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pi->xSrc = lpicd->xSrc;
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pi->ySrc = lpicd->ySrc;
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pi->dxSrc = lpicd->dxSrc;
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pi->dySrc = lpicd->dySrc;
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pi->rate = muldiv32(lpicd->dwScale,1000000,lpicd->dwRate);
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pi->hdc = lpicd->hdc;
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// !!! Should this be done somewhere else? drawdib mabey!
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if (pi->hdc)
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SetStretchBltMode(pi->hdc, COLORONCOLOR);
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wFlags = 0;
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// !!! We need some way to have a "stupid" mode here....
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if (lpicd->dwFlags & ICDRAW_BUFFER)
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wFlags |= DDF_BUFFER;
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// Don't animate if we're realizing in the background
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if (lpicd->dwFlags & ICDRAW_ANIMATE && !(pi->fBackground))
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wFlags |= DDF_ANIMATE;
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//
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// remember if this is RLE because we may need to hack it later.
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//
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pi->fRle = lpicd->lpbi->biCompression == BI_RLE8;
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pi->biSizeImage = (DWORD)(((UINT)lpicd->lpbi->biWidth+3)&~3)*(DWORD)(UINT)lpicd->lpbi->biHeight;
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DPF2(("*** AVIDrawBegin()\n"));
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if (lpicd->hpal == (HPALETTE)MCI_AVI_SETVIDEO_PALETTE_HALFTONE) {
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DrawDibSetPalette(pi->hdd, NULL);
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wFlags |= DDF_HALFTONE;
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}
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else
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DrawDibSetPalette(pi->hdd, lpicd->hpal);
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if (!DrawDibBegin(pi->hdd, pi->hdc,
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pi->dxDst, pi->dyDst,
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lpicd->lpbi,
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pi->dxSrc, pi->dySrc,
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wFlags))
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return ICERR_UNSUPPORTED;
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if (pi->hdc)
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DrawDibRealize(pi->hdd, pi->hdc, pi->fBackground);
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return ICERR_OK;
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}
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/*****************************************************************************
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*
|
||
|
|
* AVIDraw() implements ICM_DRAW
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
STATICFN LONG AVIDraw(PINSTINFO pi, ICDRAW FAR *lpicd, LONG cbicd)
|
||
|
|
{
|
||
|
|
UINT wFlags;
|
||
|
|
BOOL f;
|
||
|
|
|
||
|
|
wFlags = DDF_SAME_DRAW|DDF_SAME_HDC; // !!! Right flags?
|
||
|
|
|
||
|
|
if ((lpicd->lpData == NULL) || (lpicd->cbData == 0)) {
|
||
|
|
|
||
|
|
if ((lpicd->dwFlags & ICDRAW_UPDATE) || pi->fNeedUpdate) {
|
||
|
|
DrawDibRealize(pi->hdd, pi->hdc, pi->fBackground);
|
||
|
|
wFlags |= DDF_UPDATE;
|
||
|
|
pi->fNeedUpdate = FALSE;
|
||
|
|
lpicd->lpData = NULL;
|
||
|
|
lpicd->cbData = 0;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
return ICERR_OK; // no data to draw.
|
||
|
|
}
|
||
|
|
else {
|
||
|
|
if (lpicd->dwFlags & ICDRAW_PREROLL) {
|
||
|
|
wFlags |= DDF_DONTDRAW;
|
||
|
|
pi->fNeedUpdate = TRUE;
|
||
|
|
} else if (lpicd->dwFlags & ICDRAW_HURRYUP) {
|
||
|
|
wFlags |= DDF_HURRYUP;
|
||
|
|
pi->fNeedUpdate = TRUE;
|
||
|
|
} else
|
||
|
|
pi->fNeedUpdate = FALSE;
|
||
|
|
|
||
|
|
if (lpicd->dwFlags & ICDRAW_NOTKEYFRAME)
|
||
|
|
wFlags |= DDF_NOTKEYFRAME;
|
||
|
|
|
||
|
|
//
|
||
|
|
// if we get a update while playing and we are drawing RLE delta's
|
||
|
|
// make sure we update.
|
||
|
|
//
|
||
|
|
if (pi->fRle && (lpicd->dwFlags & ICDRAW_UPDATE)) {
|
||
|
|
DrawDibDraw(pi->hdd, pi->hdc, pi->xDst, pi->yDst,
|
||
|
|
0,0,NULL,NULL,0,0,0,0,DDF_UPDATE|DDF_SAME_HDC|DDF_SAME_DRAW);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
//
|
||
|
|
// We need a hack here for the RLE case, to make sure that
|
||
|
|
// DIBs are marked correctly as BI_RLE8 or BI_RGB....
|
||
|
|
//
|
||
|
|
if (pi->fRle) {
|
||
|
|
DPF2(("pi->fRle is true, cbData==%d, biSizeImage=%d\n",
|
||
|
|
lpicd->cbData, pi->biSizeImage));
|
||
|
|
|
||
|
|
if (lpicd->cbData == pi->biSizeImage)
|
||
|
|
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression = BI_RGB;
|
||
|
|
else {
|
||
|
|
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression = BI_RLE8;
|
||
|
|
// We MUST set the correct size
|
||
|
|
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biSizeImage = lpicd->cbData;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
f = DrawDibDraw(pi->hdd, pi->hdc,
|
||
|
|
pi->xDst, pi->yDst,
|
||
|
|
pi->dxDst, pi->dyDst,
|
||
|
|
lpicd->lpFormat,
|
||
|
|
lpicd->lpData,
|
||
|
|
pi->xSrc, pi->ySrc,
|
||
|
|
pi->dxSrc, pi->dySrc,
|
||
|
|
wFlags);
|
||
|
|
|
||
|
|
if (pi->fRle)
|
||
|
|
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression = BI_RLE8;
|
||
|
|
|
||
|
|
if (!f) {
|
||
|
|
|
||
|
|
if (wFlags & DDF_UPDATE)
|
||
|
|
DPF(("DrawDibUpdate failed\n"));
|
||
|
|
else
|
||
|
|
DPF(("DrawDibDraw failed\n"));
|
||
|
|
|
||
|
|
if (wFlags & DDF_UPDATE) {
|
||
|
|
if (lpicd->dwFlags & ICDRAW_UPDATE)
|
||
|
|
return ICERR_CANTUPDATE;
|
||
|
|
else
|
||
|
|
return ICERR_OK;
|
||
|
|
} else
|
||
|
|
return ICERR_ERROR;
|
||
|
|
}
|
||
|
|
|
||
|
|
return ICERR_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
static LONG AVIDrawChangePalette(PINSTINFO pi, LPBITMAPINFOHEADER lpbi)
|
||
|
|
{
|
||
|
|
PALETTEENTRY ape[256];
|
||
|
|
LPRGBQUAD lprgb;
|
||
|
|
int i;
|
||
|
|
|
||
|
|
lprgb = (LPRGBQUAD) ((LPBYTE) lpbi + lpbi->biSize);
|
||
|
|
|
||
|
|
for (i = 0; i < (int) lpbi->biClrUsed; i++) {
|
||
|
|
ape[i].peRed = lprgb[i].rgbRed;
|
||
|
|
ape[i].peGreen = lprgb[i].rgbGreen;
|
||
|
|
ape[i].peBlue = lprgb[i].rgbBlue;
|
||
|
|
ape[i].peFlags = 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
DrawDibChangePalette(pi->hdd, 0, (int) lpbi->biClrUsed,
|
||
|
|
(LPPALETTEENTRY)ape);
|
||
|
|
|
||
|
|
return ICERR_OK;
|
||
|
|
}
|
||
|
|
|
||
|
|
/*****************************************************************************
|
||
|
|
*
|
||
|
|
* AVIDrawEnd() implements ICM_DRAW_END
|
||
|
|
*
|
||
|
|
****************************************************************************/
|
||
|
|
|
||
|
|
static LONG AVIDrawEnd(PINSTINFO pi)
|
||
|
|
{
|
||
|
|
return ICERR_OK;
|
||
|
|
}
|