/*
*  Header file for comunication with AVI installable compressors/decompressors
*
*  Copyright (c) 1990-1993, Microsoft Corp.  All rights reserved.
*
* Win16:
*
* Installable compressors should be listed in SYSTEM.INI as
* follows:
*
* [Drivers]
*      VIDC.MSSQ = mssqcomp.drv
*      VIDC.XXXX = foodrv.drv
*
* Win32: (NT)
*
* Installable compressors should be listed in the registration database
* under the key
*   HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Drivers32
*      VIDC.MSSQ = mssqcomp.dll
*      VIDC.XXXX = foodrv.dll
*
*
* That is, an identifying FOURCC should be the key, and the value
* should be the driver filename
*
*/

#ifndef _INC_COMPMAN
#define _INC_COMPMAN

#ifndef VFWAPI
#ifdef WIN32
    #define VFWAPI  __stdcall
    #define VFWAPIV __cdecl
#else
    #define VFWAPI  FAR PASCAL
    #define VFWAPIV FAR CDECL
#endif
#endif

#ifdef __cplusplus
extern "C" {            /* Assume C declarations for C++ */
#endif  /* __cplusplus */

/************************************************************************

    messages and structures.

************************************************************************/

#ifndef HTASK
  #define HTASK HANDLE
#endif

#include <compddk.h>            // include this file for the messages.

/************************************************************************

    ICM function declarations
	
************************************************************************/

BOOL    VFWAPI ICInfo(DWORD fccType, DWORD fccHandler, ICINFO FAR * lpicinfo);
BOOL    VFWAPI ICInstall(DWORD fccType, DWORD fccHandler, LPARAM lParam, LPSTR szDesc, UINT wFlags);
BOOL    VFWAPI ICRemove(DWORD fccType, DWORD fccHandler, UINT wFlags);
LRESULT VFWAPI ICGetInfo(HIC hic, ICINFO FAR *picinfo, DWORD cb);

HIC     VFWAPI ICOpen(DWORD fccType, DWORD fccHandler, UINT wMode);
HIC     VFWAPI ICOpenFunction(DWORD fccType, DWORD fccHandler, UINT wMode, FARPROC lpfnHandler);
LRESULT VFWAPI ICClose(HANDLE hic);

LRESULT VFWAPI  ICSendMessage(HIC hic, UINT msg, DWORD dw1, DWORD dw2);
LRESULT VFWAPIV ICMessage(HIC hic, UINT msg, UINT cb, ...);

#if 0  // Defined in COMPMAN.C
#ifdef WIN32
//
// note NT 1.0 MSVFW32.DLL does not have this function, so fake it
// with this bad function that will not work except on i386..
//
static LRESULT VFWAPIV ICMessage(HIC hic, UINT msg, UINT cb, ...)
{
    return ICSendMessage(hic, msg, (DWORD)(LPVOID)(&cb+1), cb);
}
#endif
#endif

/* Values for wFlags of ICInstall() */
#define ICINSTALL_FUNCTION      0x0001  // lParam is a DriverProc (function ptr)
#define ICINSTALL_DRIVER        0x0002  // lParam is a driver name (string)
#define ICINSTALL_HDRV          0x0004  // lParam is a HDRVR (driver handle)

/************************************************************************

    query macros

************************************************************************/
#define ICMF_CONFIGURE_QUERY     0x00000001
#define ICMF_ABOUT_QUERY         0x00000001

#define ICQueryAbout(hic) \
    (ICSendMessage(hic, ICM_ABOUT, (DWORD) -1, ICMF_ABOUT_QUERY) == ICERR_OK)

#define ICAbout(hic, hwnd) \
    ICSendMessage(hic, ICM_ABOUT, (DWORD)(UINT)(hwnd), 0)

#define ICQueryConfigure(hic) \
    (ICSendMessage(hic, ICM_CONFIGURE, (DWORD) -1, ICMF_CONFIGURE_QUERY) == ICERR_OK)

#define ICConfigure(hic, hwnd) \
    ICSendMessage(hic, ICM_CONFIGURE, (DWORD)(UINT)(hwnd), 0)

/************************************************************************

    get/set state macros
	
************************************************************************/

#define ICGetState(hic, pv, cb) \
    ICSendMessage(hic, ICM_GETSTATE, (DWORD)(LPVOID)(pv), (DWORD)(cb))

#define ICSetState(hic, pv, cb) \
    ICSendMessage(hic, ICM_SETSTATE, (DWORD)(LPVOID)(pv), (DWORD)(cb))

#define ICGetStateSize(hic) \
    ICGetState(hic, NULL, 0)

/************************************************************************

    get value macros

************************************************************************/
static DWORD dwICValue;

#define ICGetDefaultQuality(hic) \
    (ICSendMessage(hic, ICM_GETDEFAULTQUALITY, (DWORD)(LPVOID)&dwICValue, sizeof(DWORD)), dwICValue)

#define ICGetDefaultKeyFrameRate(hic) \
    (ICSendMessage(hic, ICM_GETDEFAULTKEYFRAMERATE, (DWORD)(LPVOID)&dwICValue, sizeof(DWORD)), dwICValue)

/************************************************************************

    draw window macro
	
************************************************************************/
#define ICDrawWindow(hic, prc) \
    ICSendMessage(hic, ICM_DRAW_WINDOW, (DWORD)(LPVOID)(prc), sizeof(RECT))

/************************************************************************

    compression functions

************************************************************************/
/*
 *  ICCompress()
 *
 *  compress a single frame
 *
 */
DWORD VFWAPIV ICCompress(
    HIC                 hic,
    DWORD               dwFlags,        // flags
    LPBITMAPINFOHEADER  lpbiOutput,     // output format
    LPVOID              lpData,         // output data
    LPBITMAPINFOHEADER  lpbiInput,      // format of frame to compress
    LPVOID              lpBits,         // frame data to compress
    LPDWORD             lpckid,         // ckid for data in AVI file
    LPDWORD             lpdwFlags,      // flags in the AVI index.
    LONG                lFrameNum,      // frame number of seq.
    DWORD               dwFrameSize,    // reqested size in bytes. (if non zero)
    DWORD               dwQuality,      // quality within one frame
    LPBITMAPINFOHEADER  lpbiPrev,       // format of previous frame
    LPVOID              lpPrev);        // previous frame

/*
 *  ICCompressBegin()
 *
 *  start compression from a source format (lpbiInput) to a dest
 *  format (lpbiOuput) is supported.
 *
 */
#define ICCompressBegin(hic, lpbiInput, lpbiOutput) \
    ICSendMessage(hic, ICM_COMPRESS_BEGIN, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))

/*
 *  ICCompressQuery()
 *
 *  determines if compression from a source format (lpbiInput) to a dest
 *  format (lpbiOuput) is supported.
 *
 */
#define ICCompressQuery(hic, lpbiInput, lpbiOutput) \
    ICSendMessage(hic, ICM_COMPRESS_QUERY, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))

/*
 *  ICCompressGetFormat()
 *
 *  get the ouput format, (format of compressed data)
 *  if lpbiOuput is NULL return the size in bytes needed for format.
 *
 */
#define ICCompressGetFormat(hic, lpbiInput, lpbiOutput) \
    ICSendMessage(hic, ICM_COMPRESS_GET_FORMAT, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))

#define ICCompressGetFormatSize(hic, lpbi) \
    ICCompressGetFormat(hic, lpbi, NULL)

/*
 *  ICCompressSize()
 *
 *  return the maximal size of a compressed frame
 *
 */
#define ICCompressGetSize(hic, lpbiInput, lpbiOutput) \
    ICSendMessage(hic, ICM_COMPRESS_GET_SIZE, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))

#define ICCompressEnd(hic) \
    ICSendMessage(hic, ICM_COMPRESS_END, 0, 0)

/************************************************************************

    decompression functions

************************************************************************/

/*
 *  ICDecompress()
 *
 *  decompress a single frame
 *
 */
#define ICDECOMPRESS_HURRYUP    0x80000000L     // don't draw just buffer (hurry up!)

DWORD VFWAPIV ICDecompress(
    HIC                 hic,
    DWORD               dwFlags,    // flags (from AVI index...)
    LPBITMAPINFOHEADER  lpbiFormat, // BITMAPINFO of compressed data
                                    // biSizeImage has the chunk size
    LPVOID              lpData,     // data
    LPBITMAPINFOHEADER  lpbi,       // DIB to decompress to
    LPVOID              lpBits);

/*
 *  ICDecompressBegin()
 *
 *  start compression from a source format (lpbiInput) to a dest
 *  format (lpbiOuput) is supported.
 *
 */
#define ICDecompressBegin(hic, lpbiInput, lpbiOutput) \
    ICSendMessage(hic, ICM_DECOMPRESS_BEGIN, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))

/*
 *  ICDecompressQuery()
 *
 *  determines if compression from a source format (lpbiInput) to a dest
 *  format (lpbiOuput) is supported.
 *
 */
#define ICDecompressQuery(hic, lpbiInput, lpbiOutput) \
    ICSendMessage(hic, ICM_DECOMPRESS_QUERY, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))

/*
 *  ICDecompressGetFormat()
 *
 *  get the ouput format, (format of un-compressed data)
 *  if lpbiOuput is NULL return the size in bytes needed for format.
 *
 */
#define ICDecompressGetFormat(hic, lpbiInput, lpbiOutput) \
    ((LONG) ICSendMessage(hic, ICM_DECOMPRESS_GET_FORMAT, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput)))

#define ICDecompressGetFormatSize(hic, lpbi) \
    ICDecompressGetFormat(hic, lpbi, NULL)

/*
 *  ICDecompressGetPalette()
 *
 *  get the ouput palette
 *
 */
#define ICDecompressGetPalette(hic, lpbiInput, lpbiOutput) \
    ICSendMessage(hic, ICM_DECOMPRESS_GET_PALETTE, (DWORD)(LPVOID)(lpbiInput), (DWORD)(LPVOID)(lpbiOutput))

#define ICDecompressSetPalette(hic, lpbiPalette) \
    ICSendMessage(hic, ICM_DECOMPRESS_SET_PALETTE, (DWORD)(LPVOID)(lpbiPalette), 0)

#define ICDecompressEnd(hic) \
    ICSendMessage(hic, ICM_DECOMPRESS_END, 0, 0)

/************************************************************************

    decompression (ex) functions

************************************************************************/

/*
 *  ICDecompressEx()
 *
 *  decompress a single frame
 *
 */
#define ICDecompressEx(hic, dwFlags, lpbiSrc, lpSrc, xSrc, ySrc, dxSrc, dySrc, lpbiDst, lpDst, xDst, yDst, dxDst, dyDst) \
    ICMessage(hic, ICM_DECOMPRESSEX, sizeof(ICDECOMPRESSEX), \
        (DWORD)(dwFlags), \
        (LPBITMAPINFOHEADER)(lpbiSrc), (LPVOID)(lpSrc), \
        (LPBITMAPINFOHEADER)(lpbiDst), (LPVOID)(lpDst), \
        (int)(xDst), (int)(yDst), (int)(dxDst), (int)(dyDst), \
        (int)(xSrc), (int)(ySrc), (int)(dxSrc), (int)(dySrc))

/*
 *  ICDecompressBegin()
 *
 *  start compression from a source format (lpbiInput) to a dest
 *  format (lpbiOuput) is supported.
 *
 */
#define ICDecompressExBegin(hic, dwFlags, lpbiSrc, lpSrc, xSrc, ySrc, dxSrc, dySrc, lpbiDst, lpDst, xDst, yDst, dxDst, dyDst) \
    ICMessage(hic, ICM_DECOMPRESSEX_BEGIN, sizeof(ICDECOMPRESSEX), \
        (DWORD)(dwFlags), \
        (LPBITMAPINFOHEADER)(lpbiSrc), (LPVOID)(lpSrc), \
        (LPBITMAPINFOHEADER)(lpbiDst), (LPVOID)(lpDst), \
        (int)(xDst), (int)(yDst), (int)(dxDst), (int)(dyDst), \
        (int)(xSrc), (int)(ySrc), (int)(dxSrc), (int)(dySrc))

/*
 *  ICDecompressExQuery()
 *
 */
#define ICDecompressExQuery(hic, dwFlags, lpbiSrc, lpSrc, xSrc, ySrc, dxSrc, dySrc, lpbiDst, lpDst, xDst, yDst, dxDst, dyDst) \
    ICMessage(hic, ICM_DECOMPRESSEX_QUERY,  sizeof(ICDECOMPRESSEX), \
        (DWORD)(dwFlags), \
        (LPBITMAPINFOHEADER)(lpbiSrc), (LPVOID)(lpSrc), \
        (LPBITMAPINFOHEADER)(lpbiDst), (LPVOID)(lpDst), \
        (int)(xDst), (int)(yDst), (int)(dxDst), (int)(dyDst), \
        (int)(xSrc), (int)(ySrc), (int)(dxSrc), (int)(dySrc))

#define ICDecompressExEnd(hic) \
    ICSendMessage(hic, ICM_DECOMPRESSEX_END, 0, 0)

/************************************************************************

    drawing functions

************************************************************************/

/*
 *  ICDrawBegin()
 *
 *  start decompressing data with format (lpbiInput) directly to the screen
 *
 *  return zero if the decompressor supports drawing.
 *
 */

#define ICDRAW_QUERY        0x00000001L   // test for support
#define ICDRAW_FULLSCREEN   0x00000002L   // draw to full screen
#define ICDRAW_HDC          0x00000004L   // draw to a HDC/HWND

DWORD VFWAPIV ICDrawBegin(
        HIC                 hic,
        DWORD               dwFlags,        // flags
        HPALETTE            hpal,           // palette to draw with
        HWND                hwnd,           // window to draw to
        HDC                 hdc,            // HDC to draw to
        int                 xDst,           // destination rectangle
        int                 yDst,
        int                 dxDst,
        int                 dyDst,
        LPBITMAPINFOHEADER  lpbi,           // format of frame to draw
        int                 xSrc,           // source rectangle
        int                 ySrc,
        int                 dxSrc,
        int                 dySrc,
        DWORD               dwRate,         // frames/second = (dwRate/dwScale)
        DWORD               dwScale);

/*
 *  ICDraw()
 *
 *  decompress data directly to the screen
 *
 */

#define ICDRAW_HURRYUP      0x80000000L   // don't draw just buffer (hurry up!)
#define ICDRAW_UPDATE       0x40000000L   // don't draw just update screen

DWORD VFWAPIV ICDraw(
        HIC                 hic,
        DWORD               dwFlags,        // flags
        LPVOID		    lpFormat,       // format of frame to decompress
        LPVOID              lpData,         // frame data to decompress
        DWORD               cbData,         // size of data
        LONG                lTime);         // time to draw this frame

#define ICDrawSuggestFormat(hic,lpbiIn,lpbiOut,dxSrc,dySrc,dxDst,dyDst,hicDecomp) \
        ICMessage(hic, ICM_DRAW_SUGGESTFORMAT, sizeof(ICDRAWSUGGEST),   \
            (LPBITMAPINFOHEADER)(lpbiIn),(LPBITMAPINFOHEADER)(lpbiOut), \
            (int)(dxSrc),(int)(dySrc),(int)(dxDst),(int)(dyDst), (HIC)(hicDecomp))

/*
 *  ICDrawQuery()
 *
 *  determines if the compressor is willing to render the specified format.
 *
 */
#define ICDrawQuery(hic, lpbiInput) \
    ICSendMessage(hic, ICM_DRAW_QUERY, (DWORD)(LPVOID)(lpbiInput), 0L)

#define ICDrawChangePalette(hic, lpbiInput) \
    ICSendMessage(hic, ICM_DRAW_CHANGEPALETTE, (DWORD)(LPVOID)(lpbiInput), 0L)

#define ICGetBuffersWanted(hic, lpdwBuffers) \
    ICSendMessage(hic, ICM_GETBUFFERSWANTED, (DWORD)(LPVOID)(lpdwBuffers), 0)

#define ICDrawEnd(hic) \
    ICSendMessage(hic, ICM_DRAW_END, 0, 0)

#define ICDrawStart(hic) \
    ICSendMessage(hic, ICM_DRAW_START, 0, 0)

#define ICDrawStartPlay(hic, lFrom, lTo) \
    ICSendMessage(hic, ICM_DRAW_START_PLAY, (DWORD)(lFrom), (DWORD)(lTo))

#define ICDrawStop(hic) \
    ICSendMessage(hic, ICM_DRAW_STOP, 0, 0)

#define ICDrawStopPlay(hic) \
    ICSendMessage(hic, ICM_DRAW_STOP_PLAY, 0, 0)

#define ICDrawGetTime(hic, lplTime) \
    ICSendMessage(hic, ICM_DRAW_GETTIME, (DWORD)(LPVOID)(lplTime), 0)

#define ICDrawSetTime(hic, lTime) \
    ICSendMessage(hic, ICM_DRAW_SETTIME, (DWORD)lTime, 0)

#define ICDrawRealize(hic, hdc, fBackground) \
    ICSendMessage(hic, ICM_DRAW_REALIZE, (DWORD)(UINT)(HDC)(hdc), (DWORD)(BOOL)(fBackground))

#define ICDrawFlush(hic) \
    ICSendMessage(hic, ICM_DRAW_FLUSH, 0, 0)

#define ICDrawRenderBuffer(hic) \
    ICSendMessage(hic, ICM_DRAW_RENDERBUFFER, 0, 0)

/************************************************************************

    Status callback functions

************************************************************************/

/*
 *  ICSetStatusProc()
 *
 *  Set the status callback function
 *
 */
#define ICSetStatusProc(hic, dwFlags, lParam, fpfnStatus) \
    ICMessage(hic, ICM_SET_STATUS_PROC, sizeof(ICSETSTATUSPROC), \
        (DWORD)(dwFlags), \
	(LRESULT)(lParam), \
	(LONG ((CALLBACK *) ()))(fpfnStatus))

/************************************************************************

helper routines for DrawDib and MCIAVI...

************************************************************************/

#define ICDecompressOpen(fccType, fccHandler, lpbiIn, lpbiOut) \
    ICLocate(fccType, fccHandler, lpbiIn, lpbiOut, ICMODE_DECOMPRESS)

#define ICDrawOpen(fccType, fccHandler, lpbiIn) \
    ICLocate(fccType, fccHandler, lpbiIn, NULL, ICMODE_DRAW)

HIC  VFWAPI ICLocate(DWORD fccType, DWORD fccHandler, LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut, WORD wFlags);
HIC  VFWAPI ICGetDisplayFormat(HIC hic, LPBITMAPINFOHEADER lpbiIn, LPBITMAPINFOHEADER lpbiOut, int BitDepth, int dx, int dy);

/************************************************************************
Higher level functions
************************************************************************/

HANDLE VFWAPI ICImageCompress(
        HIC                 hic,        // compressor to use
        UINT                uiFlags,    // flags (none yet)
        LPBITMAPINFO	    lpbiIn,     // format to compress from
        LPVOID              lpBits,     // data to compress
        LPBITMAPINFO        lpbiOut,    // compress to this (NULL ==> default)
        LONG                lQuality,   // quality to use
        LONG FAR *          plSize);     // compress to this size (0=whatever)

HANDLE VFWAPI ICImageDecompress(
        HIC                 hic,        // compressor to use
        UINT                uiFlags,    // flags (none yet)
        LPBITMAPINFO        lpbiIn,     // format to decompress from
        LPVOID              lpBits,     // data to decompress
        LPBITMAPINFO        lpbiOut);   // decompress to this (NULL ==> default)

//
// Structure used by ICSeqCompressFrame and ICCompressorChoose routines
// Make sure this matches the autodoc in icm.c!
//
typedef struct {
    LONG		cbSize;		// set to sizeof(COMPVARS) before
					// calling ICCompressorChoose
    DWORD		dwFlags;	// see below...
    HIC			hic;		// HIC of chosen compressor
    DWORD               fccType;	// basically ICTYPE_VIDEO
    DWORD               fccHandler;	// handler of chosen compressor or
					// "" or "DIB "
    LPBITMAPINFO	lpbiIn;		// input format
    LPBITMAPINFO	lpbiOut;	// output format - will compress to this
    LPVOID		lpBitsOut;
    LPVOID		lpBitsPrev;
    LONG		lFrame;
    LONG		lKey;		// key frames how often?
    LONG		lDataRate;	// desired data rate KB/Sec
    LONG		lQ;		// desired quality
    LONG		lKeyCount;
    LPVOID		lpState;	// state of compressor
    LONG		cbState;	// size of the state
} COMPVARS, FAR *PCOMPVARS;

// FLAGS for dwFlags element of COMPVARS structure:
// set this flag if you initialize COMPVARS before calling ICCompressorChoose
#define ICMF_COMPVARS_VALID	0x00000001	// COMPVARS contains valid data

//
//  allows user to choose compressor, quality etc...
//
BOOL VFWAPI ICCompressorChoose(
        HWND        hwnd,               // parent window for dialog
        UINT        uiFlags,            // flags
        LPVOID      pvIn,               // input format (optional)
        LPVOID      lpData,             // input data (optional)
        PCOMPVARS   pc,                 // data about the compressor/dlg
        LPSTR       lpszTitle);         // dialog title (optional)

// defines for uiFlags
#define ICMF_CHOOSE_KEYFRAME	0x0001	// show KeyFrame Every box
#define ICMF_CHOOSE_DATARATE	0x0002	// show DataRate box
#define ICMF_CHOOSE_PREVIEW	0x0004	// allow expanded preview dialog
#define ICMF_CHOOSE_ALLCOMPRESSORS	0x0008	// don't only show those that
						// can handle the input format
						// or input data

BOOL VFWAPI ICSeqCompressFrameStart(PCOMPVARS pc, LPBITMAPINFO lpbiIn);
void VFWAPI ICSeqCompressFrameEnd(PCOMPVARS pc);

LPVOID VFWAPI ICSeqCompressFrame(
    PCOMPVARS               pc,         // set by ICCompressorChoose
    UINT                    uiFlags,    // flags
    LPVOID                  lpBits,     // input DIB bits
    BOOL FAR 		    *pfKey,	// did it end up being a key frame?
    LONG FAR		    *plSize);	// size to compress to/of returned image

void VFWAPI ICCompressorFree(PCOMPVARS pc);

#ifdef __cplusplus
}                       /* End of extern "C" { */
#endif	/* __cplusplus */

#endif /* _INC_COMPMAN */