Sweden-Number/dlls/msvideo/drawdib.c

398 lines
10 KiB
C

/*
* Copyright 2000 Bradley Baetz
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* FIXME: Some flags are ignored
*
* Handle palettes
*/
#include <string.h>
#include "windef.h"
#include "winbase.h"
#include "wingdi.h"
#include "winuser.h"
#include "wine/winbase16.h"
#include "wine/debug.h"
#include "vfw.h"
#include "vfw16.h"
#include "windef.h"
WINE_DEFAULT_DEBUG_CHANNEL(msvideo);
typedef struct {
HDC hdc;
INT dxDst;
INT dyDst;
LPBITMAPINFOHEADER lpbi;
INT dxSrc;
INT dySrc;
HPALETTE hpal; /* Palette to use for the DIB */
BOOL begun; /* DrawDibBegin has been called */
LPBITMAPINFOHEADER lpbiOut; /* Output format */
HIC hic; /* HIC for decompression */
HDC hMemDC; /* DC for buffering */
HBITMAP hOldDib; /* Original Dib */
HBITMAP hDib; /* DibSection */
LPVOID lpvbits; /* Buffer for holding decompressed dib */
} WINE_HDD;
int num_colours(LPBITMAPINFOHEADER lpbi)
{
if(lpbi->biClrUsed)
return lpbi->biClrUsed;
if(lpbi->biBitCount<=8)
return 1<<lpbi->biBitCount;
return 0;
}
/***********************************************************************
* DrawDibOpen [MSVFW32.@]
*/
HDRAWDIB VFWAPI DrawDibOpen(void) {
HDRAWDIB hdd;
TRACE("(void)\n");
hdd = HDRAWDIB_32(GlobalAlloc16(GHND,sizeof(WINE_HDD)));
TRACE("=> %p\n",hdd);
return hdd;
}
/***********************************************************************
* DrawDibClose [MSVFW32.@]
*/
BOOL VFWAPI DrawDibClose(HDRAWDIB hdd) {
WINE_HDD *whdd = GlobalLock16(HDRAWDIB_16(hdd));
TRACE("(%p)\n",hdd);
if (!whdd)
return FALSE;
if (whdd->begun)
DrawDibEnd(hdd);
GlobalUnlock16(HDRAWDIB_16(hdd));
GlobalFree16(HDRAWDIB_16(hdd));
return TRUE;
}
/***********************************************************************
* DrawDibEnd [MSVFW32.@]
*/
BOOL VFWAPI DrawDibEnd(HDRAWDIB hdd) {
BOOL ret = TRUE;
WINE_HDD *whdd = GlobalLock16(HDRAWDIB_16(hdd));
TRACE("(%p)\n",hdd);
whdd->hpal = 0; /* Do not free this */
whdd->hdc = 0;
if (whdd->lpbi) {
HeapFree(GetProcessHeap(),0,whdd->lpbi);
whdd->lpbi = NULL;
}
if (whdd->lpbiOut) {
HeapFree(GetProcessHeap(),0,whdd->lpbiOut);
whdd->lpbiOut = NULL;
}
whdd->begun = FALSE;
/*if (whdd->lpvbits)
HeapFree(GetProcessHeap(),0,whdd->lpvbuf);*/
if (whdd->hMemDC) {
SelectObject(whdd->hMemDC,whdd->hOldDib);
DeleteDC(whdd->hMemDC);
}
if (whdd->hDib)
DeleteObject(whdd->hDib);
if (whdd->hic) {
ICDecompressEnd(whdd->hic);
ICClose(whdd->hic);
}
whdd->lpvbits = NULL;
GlobalUnlock16(HDRAWDIB_16(hdd));
return ret;
}
/***********************************************************************
* DrawDibBegin [MSVFW32.@]
*/
BOOL VFWAPI DrawDibBegin(HDRAWDIB hdd,
HDC hdc,
INT dxDst,
INT dyDst,
LPBITMAPINFOHEADER lpbi,
INT dxSrc,
INT dySrc,
UINT wFlags) {
BOOL ret = TRUE;
WINE_HDD *whdd;
TRACE("(%p,%p,%d,%d,%p,%d,%d,0x%08lx)\n",
hdd,hdc,dxDst,dyDst,lpbi,dxSrc,dySrc,(DWORD)wFlags
);
TRACE("lpbi: %ld,%ld/%ld,%d,%d,%ld,%ld,%ld,%ld,%ld,%ld\n",
lpbi->biSize, lpbi->biWidth, lpbi->biHeight, lpbi->biPlanes,
lpbi->biBitCount, lpbi->biCompression, lpbi->biSizeImage,
lpbi->biXPelsPerMeter, lpbi->biYPelsPerMeter, lpbi->biClrUsed,
lpbi->biClrImportant);
if (wFlags & ~(DDF_BUFFER))
FIXME("wFlags == 0x%08x not handled\n", wFlags & ~(DDF_BUFFER));
whdd = (WINE_HDD*)GlobalLock16(HDRAWDIB_16(hdd));
if (!whdd) return FALSE;
if (whdd->begun)
DrawDibEnd(hdd);
if (lpbi->biCompression) {
DWORD size = 0;
whdd->hic = ICOpen(ICTYPE_VIDEO,lpbi->biCompression,ICMODE_DECOMPRESS);
if (!whdd->hic) {
WARN("Could not open IC. biCompression == 0x%08lx\n",lpbi->biCompression);
ret = FALSE;
}
if (ret) {
size = ICDecompressGetFormat(whdd->hic,lpbi,NULL);
if (size == ICERR_UNSUPPORTED) {
WARN("Codec doesn't support GetFormat, giving up.\n");
ret = FALSE;
}
}
if (ret) {
whdd->lpbiOut = HeapAlloc(GetProcessHeap(),0,size);
if (ICDecompressGetFormat(whdd->hic,lpbi,whdd->lpbiOut) != ICERR_OK)
ret = FALSE;
}
if (ret) {
/* FIXME: Use Ex functions if available? */
if (ICDecompressBegin(whdd->hic,lpbi,whdd->lpbiOut) != ICERR_OK)
ret = FALSE;
TRACE("biSizeImage == %ld\n",whdd->lpbiOut->biSizeImage);
TRACE("biCompression == %ld\n",whdd->lpbiOut->biCompression);
TRACE("biBitCount == %d\n",whdd->lpbiOut->biBitCount);
}
} else {
DWORD dwSize;
/* No compression */
TRACE("Not compressed!\n");
dwSize = lpbi->biSize + num_colours(lpbi)*sizeof(RGBQUAD);
whdd->lpbiOut = HeapAlloc(GetProcessHeap(),0,dwSize);
memcpy(whdd->lpbiOut,lpbi,dwSize);
}
if (ret) {
/*whdd->lpvbuf = HeapAlloc(GetProcessHeap(),0,whdd->lpbiOut->biSizeImage);*/
whdd->hMemDC = CreateCompatibleDC(hdc);
TRACE("Creating: %ld,%p\n",whdd->lpbiOut->biSize,whdd->lpvbits);
whdd->hDib = CreateDIBSection(whdd->hMemDC,(BITMAPINFO *)whdd->lpbiOut,DIB_RGB_COLORS,&(whdd->lpvbits),0,0);
if (!whdd->hDib) {
TRACE("Error: %ld\n",GetLastError());
}
TRACE("Created: %p,%p\n",whdd->hDib,whdd->lpvbits);
whdd->hOldDib = SelectObject(whdd->hMemDC,whdd->hDib);
}
if (ret) {
whdd->hdc = hdc;
whdd->dxDst = dxDst;
whdd->dyDst = dyDst;
whdd->lpbi = HeapAlloc(GetProcessHeap(),0,lpbi->biSize);
memcpy(whdd->lpbi,lpbi,lpbi->biSize);
whdd->dxSrc = dxSrc;
whdd->dySrc = dySrc;
whdd->begun = TRUE;
whdd->hpal = 0;
} else {
if (whdd->hic)
ICClose(whdd->hic);
if (whdd->lpbiOut) {
HeapFree(GetProcessHeap(),0,whdd->lpbiOut);
whdd->lpbiOut = NULL;
}
}
GlobalUnlock16(HDRAWDIB_16(hdd));
return ret;
}
/**********************************************************************
* DrawDibDraw [MSVFW32.@]
*/
BOOL VFWAPI DrawDibDraw(HDRAWDIB hdd, HDC hdc,
INT xDst, INT yDst, INT dxDst, INT dyDst,
LPBITMAPINFOHEADER lpbi,
LPVOID lpBits,
INT xSrc, INT ySrc, INT dxSrc, INT dySrc,
UINT wFlags
) {
WINE_HDD *whdd;
BOOL ret = TRUE;
TRACE("(%p,%p,%d,%d,%d,%d,%p,%p,%d,%d,%d,%d,0x%08lx)\n",
hdd,hdc,xDst,yDst,dxDst,dyDst,lpbi,lpBits,xSrc,ySrc,dxSrc,dySrc,(DWORD)wFlags
);
if (wFlags & ~(DDF_SAME_HDC | DDF_SAME_DRAW | DDF_NOTKEYFRAME |
DDF_UPDATE | DDF_DONTDRAW))
FIXME("wFlags == 0x%08lx not handled\n",(DWORD)wFlags);
if (!lpBits) {
/* Undocumented? */
lpBits = (LPSTR)lpbi + (WORD)(lpbi->biSize) + (WORD)(num_colours(lpbi)*sizeof(RGBQUAD));
}
whdd = GlobalLock16(HDRAWDIB_16(hdd));
#define CHANGED(x) (whdd->x != x)
if ((!whdd->begun) || (!(wFlags & DDF_SAME_HDC) && CHANGED(hdc)) || (!(wFlags & DDF_SAME_DRAW) &&
(CHANGED(lpbi) || CHANGED(dxSrc) || CHANGED(dySrc) || CHANGED(dxDst) || CHANGED(dyDst)))) {
TRACE("Something changed!\n");
ret = DrawDibBegin(hdd,hdc,dxDst,dyDst,lpbi,dxSrc,dySrc,0);
}
#undef CHANGED
if ((dxDst == -1) && (dyDst == -1)) {
dxDst = dxSrc;
dyDst = dySrc;
}
if (!(wFlags & DDF_UPDATE)) {
/* biSizeImage may be set to 0 for BI_RGB (uncompressed) bitmaps */
if ((lpbi->biCompression == BI_RGB) && (lpbi->biSizeImage == 0))
lpbi->biSizeImage = ((lpbi->biWidth * lpbi->biBitCount + 31) / 32) * 4 * lpbi->biHeight;
if (lpbi->biCompression) {
DWORD flags = 0;
TRACE("Compression == 0x%08lx\n",lpbi->biCompression);
if (wFlags & DDF_NOTKEYFRAME)
flags |= ICDECOMPRESS_NOTKEYFRAME;
ICDecompress(whdd->hic,flags,lpbi,lpBits,whdd->lpbiOut,whdd->lpvbits);
} else {
memcpy(whdd->lpvbits,lpBits,lpbi->biSizeImage);
}
}
if (!(wFlags & DDF_DONTDRAW) && whdd->hpal)
SelectPalette(hdc,whdd->hpal,FALSE);
if (!(StretchBlt(whdd->hdc,xDst,yDst,dxDst,dyDst,whdd->hMemDC,xSrc,ySrc,dxSrc,dySrc,SRCCOPY)))
ret = FALSE;
GlobalUnlock16(HDRAWDIB_16(hdd));
return ret;
}
/*************************************************************************
* DrawDibStart [MSVFW32.@]
*/
BOOL VFWAPI DrawDibStart(HDRAWDIB hdd, DWORD rate) {
FIXME("(%p,%ld), stub\n",hdd,rate);
return TRUE;
}
/*************************************************************************
* DrawDibStop [MSVFW32.@]
*/
BOOL VFWAPI DrawDibStop(HDRAWDIB hdd) {
FIXME("(%p), stub\n",hdd);
return TRUE;
}
/***********************************************************************
* DrawDibSetPalette [MSVFW32.@]
*/
BOOL VFWAPI DrawDibSetPalette(HDRAWDIB hdd, HPALETTE hpal) {
WINE_HDD *whdd;
TRACE("(%p,%p)\n",hdd,hpal);
whdd = GlobalLock16(HDRAWDIB_16(hdd));
whdd->hpal = hpal;
if (whdd->begun) {
SelectPalette(whdd->hdc,hpal,0);
RealizePalette(whdd->hdc);
}
GlobalUnlock16(HDRAWDIB_16(hdd));
return TRUE;
}
/***********************************************************************
* DrawDibGetPalette [MSVFW32.@]
*/
HPALETTE VFWAPI DrawDibGetPalette(HDRAWDIB hdd) {
WINE_HDD *whdd;
HPALETTE ret;
TRACE("(%p)\n",hdd);
whdd = GlobalLock16(HDRAWDIB_16(hdd));
ret = whdd->hpal;
GlobalUnlock16(HDRAWDIB_16(hdd));
return ret;
}
/***********************************************************************
* DrawDibRealize [MSVFW32.@]
*/
UINT VFWAPI DrawDibRealize(HDRAWDIB hdd, HDC hdc, BOOL fBackground) {
WINE_HDD *whdd;
HPALETTE oldPal;
UINT ret = 0;
FIXME("(%p,%p,%d), stub\n",hdd,hdc,fBackground);
whdd = GlobalLock16(HDRAWDIB_16(hdd));
if (!whdd || !(whdd->begun)) {
ret = 0;
goto out;
}
if (!whdd->hpal)
whdd->hpal = CreateHalftonePalette(hdc);
oldPal = SelectPalette(hdc,whdd->hpal,fBackground);
ret = RealizePalette(hdc);
out:
GlobalUnlock16(HDRAWDIB_16(hdd));
TRACE("=> %u\n",ret);
return ret;
}