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windows-nt/Source/XPSP1/NT/multimedia/media/avi/mciavi.16/fullproc.c

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2020-09-26 03:20:57 -05:00
/****************************************************************************
*
* DRAWPROC.C
*
* Standard AVI drawing handler.
*
* Copyright (c) 1992 Microsoft Corporation. All Rights Reserved.
*
* You have a royalty-free right to use, modify, reproduce and
* distribute the Sample Files (and/or any modified version) in
* any way you find useful, provided that you agree that
* Microsoft has no warranty obligations or liability for any
* Sample Application Files which are modified.
*
***************************************************************************/
#include <win32.h>
#include <compman.h>
#include <dispdib.h>
#ifdef WIN32
#include <mmddk.h>
#endif
static SZCODE szDisplayDibLib[] = TEXT("DISPDIB.DLL");
static SZCODEA szDisplayDibEx[] = "DisplayDibEx";
#define FOURCC_VIDS mmioFOURCC('v','i','d','s')
#define FOURCC_AVIFull mmioFOURCC('F','U','L','L')
#define VERSION_AVIFull 0x00010000 // 1.00
#ifndef HUGE
#define HUGE _huge
#endif
extern FAR PASCAL LockCurrentTask(BOOL);
static int siUsage = 0;
HINSTANCE ghDISPDIB = NULL; // handle to DISPDIB.DLL module
UINT (FAR PASCAL *DisplayDibExProc)(LPBITMAPINFOHEADER lpbi, int x, int y, BYTE HUGE * hpBits, UINT wFlags);
/***************************************************************************
***************************************************************************/
typedef struct {
int xDst; // destination rectangle
int yDst;
int dxDst;
int dyDst;
int xSrc; // source rectangle
int ySrc;
int dxSrc;
int dySrc;
HWND hwnd;
HWND hwndOldFocus;
BOOL fRle;
DWORD biSizeImage;
} INSTINFO, *PINSTINFO;
// static stuff in this file.
LONG FAR PASCAL _loadds ICAVIFullProc(DWORD id, HDRVR hDriver, UINT uiMessage, LPARAM lParam1, LPARAM lParam2);
static LONG AVIFullOpen(ICOPEN FAR * icopen);
static LONG AVIFullClose(PINSTINFO pi);
static LONG AVIFullGetInfo(ICINFO FAR *icinfo, LONG lSize);
static LONG AVIFullQuery(PINSTINFO pi, LPBITMAPINFOHEADER lpbiIn);
static LONG AVIFullSuggestFormat(PINSTINFO pi, ICDRAWSUGGEST FAR *lpicd, LONG cbicd);
static LONG AVIFullBegin(PINSTINFO pi, ICDRAWBEGIN FAR *lpicd, LONG cbicd);
static LONG AVIFullDraw(PINSTINFO pi, ICDRAW FAR *lpicd, LONG cbicd);
static LONG AVIFullEnd(PINSTINFO pi);
/***************************************************************************
***************************************************************************/
LONG FAR PASCAL _loadds ICAVIFullProc(DWORD id, HDRVR hDriver, UINT uiMessage, LPARAM lParam1, LPARAM lParam2)
{
INSTINFO *pi = (INSTINFO *)(UINT)id;
switch (uiMessage)
{
case DRV_LOAD:
return 1;
case DRV_FREE:
return 1;
/*********************************************************************
open
*********************************************************************/
case DRV_OPEN:
if (ghDISPDIB == NULL) {
UINT w;
w = SetErrorMode(SEM_NOOPENFILEERRORBOX | SEM_FAILCRITICALERRORS);
if ((ghDISPDIB = LoadLibrary(szDisplayDibLib)) > HINSTANCE_ERROR) {
(FARPROC)DisplayDibExProc = GetProcAddress(ghDISPDIB, szDisplayDibEx);
}
else
ghDISPDIB = (HINSTANCE)-1;
SetErrorMode(w);
}
if (DisplayDibExProc == NULL)
return 0;
if (lParam2 == 0L)
return 1;
return AVIFullOpen((ICOPEN FAR *)lParam2);
case DRV_CLOSE:
if (id == 1)
return 1;
return AVIFullClose(pi);
/*********************************************************************
Configure/Info messages
*********************************************************************/
case DRV_QUERYCONFIGURE: // configuration from drivers applet
return 0;
case DRV_CONFIGURE:
return 1;
case ICM_CONFIGURE:
case ICM_ABOUT:
return ICERR_UNSUPPORTED;
/*********************************************************************
state messages
*********************************************************************/
case ICM_GETSTATE:
case ICM_SETSTATE:
return 0L;
#if 0
case ICM_GETINFO:
return AVIFullGetInfo((ICINFO FAR *)lParam1, lParam2);
#endif
/*********************************************************************
decompress messages
*********************************************************************/
case ICM_DRAW_QUERY:
return AVIFullQuery(pi, (LPBITMAPINFOHEADER)lParam1);
case ICM_DRAW_SUGGESTFORMAT:
return AVIFullSuggestFormat(pi, (ICDRAWSUGGEST FAR *) lParam1, lParam2);
case ICM_DRAW_BEGIN:
return AVIFullBegin(pi, (ICDRAWBEGIN FAR *) lParam1, lParam2);
case ICM_DRAW:
return AVIFullDraw(pi, (ICDRAW FAR *)lParam1, lParam2);
case ICM_DRAW_CHANGEPALETTE:
DisplayDibExProc((LPBITMAPINFOHEADER) lParam1, 0, 0, NULL,
DISPLAYDIB_NOWAIT | DISPLAYDIB_NOIMAGE);
return ICERR_OK;
case ICM_DRAW_END:
return AVIFullEnd(pi);
/*********************************************************************
standard driver messages
*********************************************************************/
case DRV_DISABLE:
case DRV_ENABLE:
return 1;
case DRV_INSTALL:
case DRV_REMOVE:
return 1;
}
if (uiMessage < DRV_USER)
return DefDriverProc(id,hDriver,uiMessage,lParam1,lParam2);
else
return ICERR_UNSUPPORTED;
}
/*****************************************************************************
*
* AVIFullOpen() is called from the DRV_OPEN message
*
****************************************************************************/
static LONG AVIFullOpen(ICOPEN FAR * icopen)
{
INSTINFO * pinst;
//
// refuse to open if we are not being opened as a Video compressor
//
if (icopen->dwFlags & ICMODE_COMPRESS)
return 0;
if (icopen->dwFlags & ICMODE_DECOMPRESS)
return 0;
pinst = (INSTINFO *)LocalAlloc(LPTR, sizeof(INSTINFO));
if (!pinst)
{
icopen->dwError = ICERR_MEMORY;
return 0;
}
++siUsage;
//
// return success.
//
icopen->dwError = ICERR_OK;
return (LONG) (UINT) pinst;
}
/*****************************************************************************
*
* Close() is called on the DRV_CLOSE message.
*
****************************************************************************/
static LONG AVIFullClose(PINSTINFO pi)
{
LocalFree((HLOCAL) pi);
if (--siUsage == 0) {
/* unload DISPDIB library (if loaded) */
if (ghDISPDIB != NULL && ghDISPDIB != (HINSTANCE) -1)
FreeLibrary(ghDISPDIB), ghDISPDIB = NULL;
}
return 1;
}
#if 0
/*****************************************************************************
*
* AVIFullGetInfo() implements the ICM_GETINFO message
*
****************************************************************************/
static LONG AVIFullGetInfo(ICINFO FAR *icinfo, LONG lSize)
{
if (icinfo == NULL)
return sizeof(ICINFO);
if (lSize < sizeof(ICINFO))
return 0;
icinfo->dwSize = sizeof(ICINFO);
icinfo->fccType = FOURCC_VIDS;
icinfo->fccHandler = FOURCC_AVIFull;
icinfo->dwFlags = VIDCF_DRAW;
icinfo->dwVersion = VERSION_AVIFull;
icinfo->dwVersionICM = ICVERSION;
lstrcpy(icinfo->szDescription, szDescription);
lstrcpy(icinfo->szName, szName);
return sizeof(ICINFO);
}
#endif
/*****************************************************************************
*
* AVIFullQuery() implements ICM_DRAW_QUERY
*
****************************************************************************/
static LONG AVIFullQuery(PINSTINFO pi,
LPBITMAPINFOHEADER lpbiIn)
{
//
// determine if the input DIB data is in a format we like.
//
if (lpbiIn == NULL)
return ICERR_BADFORMAT;
if (DisplayDibExProc(lpbiIn, 0, 0, 0,
DISPLAYDIB_MODE_DEFAULT|DISPLAYDIB_NOWAIT|DISPLAYDIB_TEST) != 0)
return ICERR_BADFORMAT;
return ICERR_OK;
}
static LONG AVIFullSuggestFormat(PINSTINFO pi, ICDRAWSUGGEST FAR *lpicd, LONG cbicd)
{
HIC hic;
static int iFull = -1;
int iDepth;
if (iFull < 0) {
BITMAPINFOHEADER bih;
bih.biSize = sizeof(bih);
bih.biBitCount = 16;
bih.biCompression = BI_RGB;
bih.biWidth = 160;
bih.biHeight = 120;
iFull = (AVIFullQuery(pi, &bih) == ICERR_OK) ? 1 : 0;
}
iDepth = lpicd->lpbiIn->biBitCount > 8 && iFull == 1 ? 16 : 8;
if (lpicd->lpbiSuggest == NULL)
return sizeof(BITMAPINFOHEADER) + 256 * sizeof(RGBQUAD);
hic = ICGetDisplayFormat(NULL, lpicd->lpbiIn,
lpicd->lpbiSuggest,
iDepth, 0, 0);
if (hic)
ICClose(hic);
return sizeof(BITMAPINFOHEADER) + lpicd->lpbiSuggest->biClrUsed * sizeof(RGBQUAD);
}
/*****************************************************************************
*
* AVIFullBegin() implements ICM_DRAW_BEGIN
*
****************************************************************************/
static LONG AVIFullBegin(PINSTINFO pi, ICDRAWBEGIN FAR *lpicd, LONG cbicd)
{
UINT w;
LONG lRet;
if (!(lpicd->dwFlags & ICDRAW_FULLSCREEN))
return ICERR_UNSUPPORTED; // !!! Necessary?
lRet = AVIFullQuery(pi, lpicd->lpbi);
if (lRet != 0 || (lpicd->dwFlags & ICDRAW_QUERY))
return lRet;
// Copy over whatever we want to remember
pi->hwnd = lpicd->hwnd;
pi->xDst = lpicd->xDst;
pi->yDst = lpicd->yDst;
pi->dxDst = lpicd->dxDst;
pi->dyDst = lpicd->dyDst;
pi->xSrc = lpicd->xSrc;
pi->ySrc = lpicd->ySrc;
pi->dxSrc = lpicd->dxSrc;
pi->dySrc = lpicd->dySrc;
//
// remember if this is RLE because we may need to hack it later.
//
pi->fRle = lpicd->lpbi->biCompression == BI_RLE8;
pi->biSizeImage = (DWORD)(((UINT)lpicd->lpbi->biWidth+3)&~3)*(DWORD)(UINT)lpicd->lpbi->biHeight;
pi->hwndOldFocus = GetFocus();
SetFocus(NULL);
//
// we dont need to do this, DISPDIB will do it for us
//
#if 0
SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
LockCurrentTask(TRUE);
#endif
/* Capture the mouse, so other apps don't get called. */
SetCapture(pi->hwnd);
/* We don't explicitly specify a graphics mode; DispDib will
** choose one for us.
*/
w = DisplayDibExProc(lpicd->lpbi, 0, 0, NULL,
DISPLAYDIB_BEGIN | DISPLAYDIB_NOWAIT);
switch (w) {
case DISPLAYDIB_INVALIDFORMAT:
return ICERR_BADFORMAT;
case 0:
return ICERR_OK;
default:
return ICERR_UNSUPPORTED;
}
}
/*****************************************************************************
*
* AVIFullDraw() implements ICM_DRAW
*
****************************************************************************/
static LONG AVIFullDraw(PINSTINFO pi, ICDRAW FAR *lpicd, LONG cbicd)
{
UINT wFlags;
UINT w;
wFlags = DISPLAYDIB_NOPALETTE | DISPLAYDIB_NOWAIT;
if (pi->dxDst > pi->dxSrc)
wFlags |= DISPLAYDIB_ZOOM2;
if (lpicd->dwFlags & ICDRAW_NULLFRAME) {
return ICERR_OK; // !!!
}
if (lpicd->dwFlags & ICDRAW_PREROLL) {
if (((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression == BI_RGB) // !!!
return ICERR_OK;
}
if (lpicd->dwFlags & ICDRAW_HURRYUP)
; // !!! DONTDRAW?
if (lpicd->lpData == NULL)
return ICERR_UNSUPPORTED;
//
// 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) {
if (lpicd->cbData == pi->biSizeImage)
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression = BI_RGB;
else
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression = BI_RLE8;
}
w = DisplayDibExProc(lpicd->lpFormat, 0, 0, lpicd->lpData, wFlags);
if (pi->fRle)
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression = BI_RLE8;
if (w != DISPLAYDIB_NOERROR)
return ICERR_ERROR;
return ICERR_OK;
}
/*****************************************************************************
*
* AVIFullEnd() implements ICM_DRAW_END
*
****************************************************************************/
static LONG AVIFullEnd(PINSTINFO pi)
{
MSG msg;
DisplayDibExProc(NULL, 0, 0, NULL, DISPLAYDIB_END | DISPLAYDIB_NOWAIT);
//
// we dont need to do this, DISPDIB will do it for us
//
#if 0
LockCurrentTask(FALSE);
/* Can we assume the error mode should be 0? */
SetErrorMode(0);
#endif
ReleaseCapture();
/* Clear out left-over key messages */
while (PeekMessage(&msg, NULL, WM_KEYFIRST, WM_KEYLAST,
PM_REMOVE | PM_NOYIELD))
;
/* Clear out left-over mouse messages */
while (PeekMessage(&msg, NULL, WM_MOUSEFIRST, WM_MOUSELAST,
PM_REMOVE | PM_NOYIELD))
;
SetFocus(pi->hwndOldFocus);
return ICERR_OK;
}

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