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windows-nt/Source/XPSP1/NT/multimedia/media/avi/mciavi32/fullproc.c

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/****************************************************************************
*
* 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.
*
***************************************************************************/
#ifdef _WIN32
#include "graphic.h"
#include <mmddk.h>
#include "profile.h"
#endif
#include <win32.h>
#include <vfw.h>
#include <dispdib.h>
#ifdef _WIN32
static SZCODE szAtomFlag[] = TEXT("aviFullscreen");
static SZCODE szDisplayDibLib[] = TEXT("DISPDB32.DLL");
#else
static SZCODE szDisplayDibLib[] = TEXT("DISPDIB.DLL");
#endif
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;
static HINSTANCE ghDISPDIB = NULL; // handle to DISPDIB.DLL module
UINT (FAR PASCAL *DisplayDibExProc)(LPBITMAPINFOHEADER lpbi, int x, int y, LPSTR hpBits, UINT wFlags)=NULL;
/***************************************************************************
***************************************************************************/
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.
LRESULT FAR PASCAL _loadds ICAVIFullProc(DWORD_PTR id, HDRVR hDriver, UINT uiMessage, LPARAM lParam1, LPARAM lParam2);
static LRESULT 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);
/* -------------------------------------------------------------------------
** Private Globals
** These are only valid in the process that started playing the movie.
** -------------------------------------------------------------------------
*/
#include "common.h"
HWND hwndFullScreen;
HDC hdcFullScreen;
HDRAWDIB hdd;
BOOL fClassRegistered;
int dxScreen;
int dyScreen;
int iMovieSizeMultiplier;
/***************************************************************************
***************************************************************************/
LRESULT FAR PASCAL _loadds ICAVIFullProc(DWORD_PTR id, HDRVR hDriver, UINT uiMessage, LPARAM lParam1, LPARAM lParam2)
{
INSTINFO *pi = (INSTINFO *)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);
if ((INT_PTR)(ghDISPDIB = (HINSTANCE)LoadLibrary(szDisplayDibLib)) > HINSTANCE_ERROR) {
(FARPROC)DisplayDibExProc = GetProcAddress(ghDISPDIB, szDisplayDibEx);
}
else
ghDISPDIB = (HINSTANCE)-1;
SetErrorMode(w);
}
if (DisplayDibExProc == NULL)
DisplayDibExProc = DisplayDibEx;
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, (LONG) lParam2);
case ICM_DRAW_BEGIN:
return AVIFullBegin(pi, (ICDRAWBEGIN FAR *) lParam1, (LONG) lParam2);
case ICM_DRAW_REALIZE:
if (DisplayDibExProc == DisplayDibEx) {
if (hdd == NULL || hdcFullScreen == NULL) {
break;
}
return DrawDibRealize( hdd, hdcFullScreen, (BOOL)lParam2 );
}
break;
case ICM_DRAW_GET_PALETTE:
if (DisplayDibExProc == DisplayDibEx) {
if (NULL != hdd) {
return (LONG_PTR)DrawDibGetPalette(hdd);
}
}
break;
case ICM_DRAW:
return AVIFullDraw(pi, (ICDRAW FAR *)lParam1, (LONG) 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_PTR 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_PTR) (UINT_PTR) 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;
UINT wFlags = DISPLAYDIB_BEGIN | DISPLAYDIB_NOWAIT;
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;
if (pi->dxDst > pi->dxSrc)
wFlags |= DISPLAYDIB_ZOOM2;
//
// 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);
/*
** If we are using the built in fullscreen support we have to
** get the hdd and set its palette here. This is because I am unable to
** pass this information to DispDib code (there arn't any free parameters).
*/
if (DisplayDibExProc == DisplayDibEx) {
hdd = DrawDibOpen();
if (lpicd->hpal == (HPALETTE)MCI_AVI_SETVIDEO_PALETTE_HALFTONE) {
DrawDibSetPalette(hdd, NULL);
}
else {
DrawDibSetPalette(hdd, lpicd->hpal);
}
}
// Don't animate if we're realizing in the background
if (lpicd->dwFlags & ICDRAW_ANIMATE) {
wFlags |= DISPLAYDIB_ANIMATE;
}
if (lpicd->hpal == (HPALETTE)MCI_AVI_SETVIDEO_PALETTE_HALFTONE) {
wFlags |= DISPLAYDIB_HALFTONE;
}
//
// 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, wFlags );
switch (w) {
case DISPLAYDIB_INVALIDFORMAT:
return ICERR_BADFORMAT;
case 0:
return ICERR_OK;
default:
return ICERR_UNSUPPORTED;
}
}
/*****************************************************************************
*
* AVIFullDraw() implements ICM_DRAW
*
****************************************************************************/
STATICFN 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;
// We MUST set the correct size
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biSizeImage = lpicd->cbData;
}
}
w = DisplayDibExProc(lpicd->lpFormat, 0, 0, lpicd->lpData, wFlags);
if (pi->fRle)
((LPBITMAPINFOHEADER)lpicd->lpFormat)->biCompression = BI_RLE8;
switch (w) {
case DISPLAYDIB_STOP: return ICERR_STOPDRAWING;
case DISPLAYDIB_NOERROR: return ICERR_OK;
default: return ICERR_ERROR;
}
}
/*****************************************************************************
*
* 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;
}
/* -------------------------------------------------------------------------
** Private constants
** -------------------------------------------------------------------------
*/
#define CX_MAX_MOVIE_DEFAULT 640
#define CY_MAX_MOVIE_DEFAULT 480
/* -------------------------------------------------------------------------
** Private functions prototypes
** -------------------------------------------------------------------------
*/
LRESULT CALLBACK
FullScreenWndProc(
HWND hwnd,
UINT message,
WPARAM wParam,
LPARAM lParam
);
LRESULT CALLBACK
KeyboardHookProc(
int nCode,
WPARAM wParam,
LPARAM lParam
);
UINT
DisplayDibEnter(
LPBITMAPINFOHEADER lpbi,
UINT wFlags
);
void
DisplayDibLeave(
UINT wFlags
);
int
DisplayCalcMovieMultiplier(
int cxOriginal,
int cyOriginal,
DWORD dwCompression
);
/* -------------------------------------------------------------------------
** Global data shared between all processes that attach to this library.
** This is required to make the keyboard hook work correctly.
** -------------------------------------------------------------------------
*/
//#define StopRequested() (fStop)
#define StopRequested() (GlobalFindAtom(szAtomFlag))
#pragma data_seg( ".sdata" , "DATA")
BOOL fStop;
HHOOK hHookK;
#pragma data_seg()
/******************************Public*Routine******************************\
* @doc EXTERNAL DISPDIB
*
* @api UINT | DisplayDibEx | This function displays a 256-color bitmap on a
* standard VGA display. It reduces the display resolution to 320-by-200
* or 320-by-240 and uses the full screen to display the bitmap, clipping
* and centering it as necessary. The function normally does not return to
* the application until the user presses a key or clicks a mouse button.
*
* To call <f DisplayDibEx>, an application must be the active
* application. All inactive applications and GDI screen updates
* are suspended while <f DisplayDib> temporarily reconfigures
* the display.
*
* @parm LPBITMAPINFO | lpbi | Specifies a pointer to a <t BITMAPINFO>
* header describing the bitmap to be displayed.
*
* @parm int | x | x position to place DIB iff DISPLAYDIB_NOCENTER flags is set
* the lower left is (0,0)
*
* @parm int | y | y position to place DIB iff DISPLAYDIB_NOCENTER flags is set
* the lower left is (0,0)
*
* @parm LPSTR | lpBits | Specifies a pointer to the bitmap bits. If this
* parameter is NULL, the bits are assumed to follow the
* <t BITMAPINFO> structure pointed to by <p lpbi>.
*
* @parm UINT | wFlags | Specifies options for displaying the bitmap. Use
* the following flags:
*
* @flag DISPLAYDIB_MODE_DEFAULT | Use the default mode (320 by 240)
* to display the bitmap.
* @flag DISPLAYDIB_MODE_320x200x8 | Use 320-by-200 mode to display
* the bitmap.
* @flag DISPLAYDIB_MODE_320x240x8 | Use 320-by-240 mode to display
* the bitmap. This is the default.
* @flag DISPLAYDIB_NOWAIT | Return immediately after displaying the
* bitmap; don't wait for a key press or mouse click before returning.
* @flag DISPLAYDIB_NOPALETTE | Ignore the palette associated
* with the bitmap. You can use this flag when displaying a series
* of bitmaps that use a common palette.
* @flag DISPLAYDIB_NOCENTER | Don't center the image. The function
* displays the bitmap in the lower-left corner of the display.
* @flag DISPLAYDIB_NOIMAGE | Don't draw image
* @flag DISPLAYDIB_ZOOM2 | Stretch image by 2
* @flag DISPLAYDIB_DONTLOCKTASK | dont lock out other tasks
* @flag DISPLAYDIB_TEST | dont do any thing just test for support
* @flag DISPLAYDIB_BEGIN | Switch to the low-resolution
* display mode and set the palette. The bitmap is not displayed.
*
* If you are displaying a series of images that use the same palette,
* you can call <f DisplayDib> with this flag to prepare the display for
* the bitmaps, then make a series of <f DisplayDib> calls with the
* DISPLAYDIB_NOPALETTE flag. This technique
* eliminates the screen flicker that occurs when the display is
* switched between the low-resolution and standard VGA modes.
* To return the display to standard VGA mode, subsequently
* call <f DisplayDib> with the DISPLAYDIB_END flag.
*
* @flag DISPLAYDIB_END | Switch back to standard VGA mode
* and return without displaying a bitmap. Signifies the end of multiple
* calls to <f DisplayDib>. With this flag, you can specify
* NULL for the <p lpbi> and <p lpBits> parameters.
*
* @rdesc Returns zero if successful, otherwise returns an error code.
* Error codes are as follows:
*
* @flag DISPLAYDIB_NOTSUPPORTED | <f DisplayDib> is not supported
* in the current mode.
* @flag DISPLAYDIB_INVALIDDIB | The bitmap specified by
* <p lpbi> is not a valid bitmap.
* @flag DISPLAYDIB_INVALIDFORMAT | The bitmap specified by
* <p lpbi> specifes a type of bitmap that is not supported.
* @flag DISPLAYDIB_INVALIDTASK | The caller is an inactive application.
* <f DisplayDib> can only be called by an active application.
*
* @comm The <f DisplayDib> function displays bitmaps described with
* the Windows 3.0 <t BITMAPINFO> data structure in either BI_RGB
* or BI_RLE8 format; it does not support bitmaps described with
* the OS/2 <t BITMAPCOREHEADER> data structure.
*
* When <f DisplayDib> switches to a low-resolution display, it
* disables the current display driver. As a result, you cannot use GDI
* functions to update the display while <f DisplayDib> is displaying a
* bitmap.
*
*
* History:
* 23-03-94 - StephenE - Created
*
\**************************************************************************/
UINT FAR PASCAL
DisplayDibEx(
LPBITMAPINFOHEADER lpbi,
int x,
int y,
LPSTR lpBits,
UINT wFlags
)
{
DWORD wNumColors;
LONG yExt;
LONG xExt;
int xScreen,yScreen;
/*
** If not already done so:
** Register our class and Create our window "fullscreen"
*/
if (wFlags & DISPLAYDIB_BEGIN) {
DPF4(( "DISPLAYDIB_BEGIN..." ));
return DisplayDibEnter( lpbi, wFlags );
}
/*
** Just testing return OK
*/
else if (wFlags & DISPLAYDIB_TEST) {
DPF1(( "lpbi->biCompression = 0x%X = %c%c%c%c",
lpbi->biCompression,
*((LPSTR)&lpbi->biCompression + 0),
*((LPSTR)&lpbi->biCompression + 1),
*((LPSTR)&lpbi->biCompression + 2),
*((LPSTR)&lpbi->biCompression + 3) ));
DPF4(( "DISPLAYDIB_TEST... returning OK" ));
return DISPLAYDIB_NOERROR;
}
/*
** Palette change message
*/
else if ( (wFlags & (DISPLAYDIB_NOWAIT | DISPLAYDIB_NOIMAGE)) ==
(DISPLAYDIB_NOWAIT | DISPLAYDIB_NOIMAGE) ) {
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(hdd, 0, (int)lpbi->biClrUsed, (LPPALETTEENTRY)ape);
return DISPLAYDIB_NOERROR;
}
/*
** Time to kill the window and the class
*/
else if (wFlags & DISPLAYDIB_END) {
DPF4(( "DISPLAYDIB_END..." ));
DisplayDibLeave( wFlags );
return DISPLAYDIB_NOERROR;
}
/*
** Do the drawing here !!
*/
else if ( !StopRequested() ) {
/*
** If we were'nt asked to draw anything just return.
*/
if ( wFlags & DISPLAYDIB_NOIMAGE ) {
return DISPLAYDIB_NOERROR;
}
xExt = lpbi->biWidth;
yExt = lpbi->biHeight;
if ( wFlags & DISPLAYDIB_ZOOM2 ) {
xExt <<= 1;
yExt <<= 1;
}
else if ( iMovieSizeMultiplier ) {
//The movie needs to be stretched to full screen.
xExt = GetSystemMetrics( SM_CXSCREEN );
yExt = GetSystemMetrics( SM_CYSCREEN );
}
wNumColors = lpbi->biClrUsed;
if (wNumColors == 0 && lpbi->biBitCount <= 8) {
wNumColors = 1 << (UINT)lpbi->biBitCount;
}
/*
** setup pointers
*/
if (lpBits == NULL) {
lpBits = (LPBYTE)lpbi + lpbi->biSize + wNumColors * sizeof(RGBQUAD);
}
/*
** center the image
*/
if (!(wFlags & DISPLAYDIB_NOCENTER)) {
xScreen = ((int)dxScreen - xExt) / 2;
yScreen = ((int)dyScreen - yExt) / 2;
}
else {
xScreen = 0;
yScreen = 0;
}
DPF4(( "Drawing to the screen..." ));
DrawDibDraw( hdd, hdcFullScreen,
xScreen, yScreen, xExt, yExt,
lpbi, lpBits,
0, 0, lpbi->biWidth, lpbi->biHeight,
DDF_SAME_HDC | DDF_SAME_DRAW );
/*
** Hack time !!
**
** We have to remove keyboard message from the queue to enable the
** keyboard hook to see them !!
*/
{
MSG msg;
PeekMessage( &msg, NULL, WM_KEYFIRST, WM_KEYLAST,
PM_REMOVE | PM_NOYIELD );
}
return DISPLAYDIB_NOERROR;
// return fStop;
}
/*
** The user pressed a key... time to stop
*/
else {
DPF1(( "The keyboard hook is telling us to stop..." ));
//DisplayDibLeave( wFlags );
return DISPLAYDIB_STOP;
}
}
/*****************************Private*Routine******************************\
* DisplayDibEnter
*
*
*
* History:
* 23-03-94 - StephenE - Created
*
\**************************************************************************/
UINT
DisplayDibEnter(
LPBITMAPINFOHEADER lpbi,
UINT wFlags
)
{
WNDCLASS wc;
HINSTANCE hInst = GetModuleHandle( NULL );
/*
** If our class isn't already registered with windows register it
*/
fClassRegistered = GetClassInfo( hInst, TEXT("SJE_FULLSCREEN"), &wc );
if ( fClassRegistered == FALSE ) {
ZeroMemory( &wc, sizeof(wc) );
wc.style = CS_OWNDC;
wc.lpfnWndProc = FullScreenWndProc;
wc.hInstance = hInst;
wc.hbrBackground = (HBRUSH)GetStockObject( BLACK_BRUSH );
wc.lpszClassName = TEXT("SJE_FULLSCREEN");
fClassRegistered = RegisterClass( &wc );
DPF4(( "Class registered... %s", fClassRegistered ? "OK" : "FAILED" ));
}
if ( fClassRegistered ) {
/*
** Do we already have a window ??
*/
if ( hwndFullScreen == NULL ) {
hwndFullScreen = CreateWindowEx( WS_EX_TOPMOST,
TEXT("SJE_FULLSCREEN"),
NULL,
WS_POPUP,
0, 0, 0, 0,
NULL, NULL,
hInst, NULL );
DPF4(( "Window created... %s", hwndFullScreen ? "OK" : "FAILED" ));
}
if ( hwndFullScreen ) {
LONG yExt;
LONG xExt;
fStop = FALSE;
hHookK = SetWindowsHookEx( WH_KEYBOARD, KeyboardHookProc,
ghModule,
0 );
DPF4(( "Hook created... %s", hHookK ? "OK" : "FAILED" ));
dxScreen = GetSystemMetrics( SM_CXSCREEN );
dyScreen = GetSystemMetrics( SM_CYSCREEN );
hdcFullScreen = GetDC( hwndFullScreen );
SetStretchBltMode(hdcFullScreen, COLORONCOLOR);
xExt = lpbi->biWidth;
yExt = lpbi->biHeight;
iMovieSizeMultiplier =
DisplayCalcMovieMultiplier( xExt, yExt, lpbi->biCompression );
if ( wFlags & DISPLAYDIB_ZOOM2 ) {
xExt <<= 1;
yExt <<= 1;
}
else if ( iMovieSizeMultiplier ) {
//The movie needs to be stretched to full screen.
xExt = GetSystemMetrics( SM_CXSCREEN );
yExt = GetSystemMetrics( SM_CYSCREEN );
}
if ( wFlags & DISPLAYDIB_ANIMATE ) {
wFlags = DDF_ANIMATE;
}
else if ( wFlags & DISPLAYDIB_HALFTONE ) {
wFlags = DDF_HALFTONE;
}
else {
wFlags = 0;
}
DPF1(( "Drawing at %d by %d... Flags = 0x%X", xExt, yExt, wFlags ));
DrawDibBegin( hdd, hdcFullScreen, xExt, yExt,
lpbi, lpbi->biWidth, lpbi->biHeight, wFlags );
MoveWindow( hwndFullScreen, 0, 0, dxScreen, dyScreen, FALSE );
ShowWindow( hwndFullScreen, SW_SHOW );
UpdateWindow( hwndFullScreen );
ShowCursor( FALSE );
SetForegroundWindow( hwndFullScreen );
SetFocus( hwndFullScreen );
}
}
return hwndFullScreen != NULL ? DISPLAYDIB_NOERROR : DISPLAYDIB_NOTSUPPORTED;
}
/*****************************Private*Routine******************************\
* DisplayDibLeave
*
*
*
* History:
* 23-03-94 - StephenE - Created
*
\**************************************************************************/
void
DisplayDibLeave(
UINT wFlags
)
{
if (hwndFullScreen) {
DestroyWindow( hwndFullScreen );
hwndFullScreen = NULL;
}
}
/*****************************Private*Routine******************************\
* DisplayCalcMovieMultiplier
*
* Determines the largest movie that the display is capable of displaying.
*
* History:
* dd-mm-94 - StephenE - Created
*
\**************************************************************************/
int
DisplayCalcMovieMultiplier(
int cxOriginal,
int cyOriginal,
DWORD dwCompression
)
{
SYSTEM_INFO SysInfo;
int iMult;
int iMultTemp;
int cxOriginalSave, cyOriginalSave;
int iMax = 8;
GetSystemInfo( &SysInfo );
iMultTemp = iMult = 0;
cxOriginalSave = cxOriginal;
cyOriginalSave = cyOriginal;
switch ( SysInfo.wProcessorArchitecture ) {
case PROCESSOR_ARCHITECTURE_INTEL:
if ( SysInfo.wProcessorLevel <= 3 ) {
break;
} else
if ( SysInfo.wProcessorLevel == 4 ) {
iMax = 2;
iMax = mmGetProfileInt(szIni, TEXT("MaxFullScreenShift"), iMax);
//DPF0(("Setting the maximum shift multiplier to %d\n", iMax));
}
/*
** maybe later we will do something more different for i486's
** for now they just fall through to the RISC / Pentium default
** case below.
*/
default:
while ( ( (cxOriginal<<=1) <= CX_MAX_MOVIE_DEFAULT)
&& ( (cyOriginal<<=1) <= CY_MAX_MOVIE_DEFAULT)
&& (iMax >= iMult)) {
++iMult;
}
break;
}
return iMult;
}
/******************************Public*Routine******************************\
* FullScreenWndProc
*
*
*
* History:
* 23-03-94 - StephenE - Created
*
\**************************************************************************/
LRESULT CALLBACK
FullScreenWndProc(
HWND hwnd,
UINT message,
WPARAM wParam,
LPARAM lParam
)
{
switch ( message ) {
case WM_PAINT:
{
PAINTSTRUCT ps;
RECT rc;
DPF4(( "Window needs painting" ));
BeginPaint( hwnd, &ps );
GetUpdateRect( hwnd, &rc, FALSE );
FillRect( hdcFullScreen, &rc, GetStockObject( BLACK_BRUSH ) );
EndPaint( hwnd, &ps );
}
break;
case WM_PALETTECHANGED:
if ( (HWND)wParam == hwnd ) {
break;
}
/* fall thru */
case WM_QUERYNEWPALETTE:
if ( DrawDibRealize( hdd, hdcFullScreen, FALSE ) > 0 ) {
InvalidateRect( hwnd, NULL, TRUE );
return TRUE;
}
break;
case WM_DESTROY:
{
ATOM atm;
DPF4(( "Window destroyed releasing DC" ));
ReleaseDC( hwnd, hdcFullScreen );
DrawDibEnd( hdd );
DrawDibClose( hdd );
hdd = NULL;
hdcFullScreen = NULL;
UnregisterClass( TEXT("SJE_FULLSCREEN"), GetModuleHandle( NULL ) );
fClassRegistered = FALSE;
ShowCursor( TRUE );
UnhookWindowsHookEx( hHookK );
while (atm = GlobalFindAtom(szAtomFlag)) {
GlobalDeleteAtom(atm);
}
}
break;
//case WM_KILLFOCUS:
//case WM_ACTIVATE:
//case WM_SETFOCUS:
// DPF0(("FullWindowProc, message==%8x, wp/lp %8x/%8x\n", message, wParam, lParam));
default:
return DefWindowProc( hwnd, message, wParam, lParam );
}
return (LRESULT)FALSE;
}
/******************************Public*Routine******************************\
* KeyboardHookProc
*
*
*
* History:
* 23-03-94 - StephenE - Created
*
\**************************************************************************/
LRESULT CALLBACK
KeyboardHookProc(
int nCode,
WPARAM wParam,
LPARAM lParam
)
{
//DPF0(("HookProc, ncode == %d, lParam==%8x\n", nCode, lParam));
if ( nCode == HC_ACTION) {
DPF1(( "lParam = 0x%X", lParam ));
DPF1(( "! wParam = 0x%X\n", wParam ));
/*
** Don't mess about with the control or shift key. This is because
** mciwnd uses them to start playing fullscreen. This causes the movie
** to start start playing and then immediately stop. 0x001D0000 is
** the scan code for the control keys, 0x002A0000 is the scan code
** for the shift key.
*/
if ( (lParam & 0x00FF0000) == 0x001D0000
|| (lParam & 0x00FF0000) == 0x002A0000 ) {
return CallNextHookEx( hHookK, nCode, wParam, lParam );
}
/*
** The most significant bit of lParam is set if the key is being
** released. We are only interested in keydowns. Bits 16 - 23 are
** the hardware scan code of the key being pressed, 0x00010000
** is the scan code for the escape key.
*/
if ( !(lParam & 0x80000000) || ((lParam & 0x00FF0000) == 0x00010000)) {
if (!fStop) {
fStop = TRUE;
GlobalAddAtom(szAtomFlag);
/*
** Don't let windows see this message.
*/
return -1;
}
DPF1(( "Stop requested from the keyboard hook" ));
}
}
return CallNextHookEx( hHookK, nCode, wParam, lParam );
}
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