diff options
Diffstat (limited to 'vcl/win/source/gdi/salbmp.cxx')
| -rw-r--r-- | vcl/win/source/gdi/salbmp.cxx | 632 |
1 files changed, 632 insertions, 0 deletions
diff --git a/vcl/win/source/gdi/salbmp.cxx b/vcl/win/source/gdi/salbmp.cxx new file mode 100644 index 000000000000..444df039dd69 --- /dev/null +++ b/vcl/win/source/gdi/salbmp.cxx @@ -0,0 +1,632 @@ +/************************************************************************* + * + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * Copyright 2000, 2010 Oracle and/or its affiliates. + * + * OpenOffice.org - a multi-platform office productivity suite + * + * This file is part of OpenOffice.org. + * + * OpenOffice.org is free software: you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License version 3 + * only, as published by the Free Software Foundation. + * + * OpenOffice.org 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 version 3 for more details + * (a copy is included in the LICENSE file that accompanied this code). + * + * You should have received a copy of the GNU Lesser General Public License + * version 3 along with OpenOffice.org. If not, see + * <http://www.openoffice.org/license.html> + * for a copy of the LGPLv3 License. + * + ************************************************************************/ + +// MARKER(update_precomp.py): autogen include statement, do not remove +#include "precompiled_vcl.hxx" +#include <tools/svwin.h> +#include <wincomp.hxx> +#include <vcl/salbtype.hxx> +#include <salgdi.h> +#include <saldata.hxx> +#include <salbmp.h> +#include <vcl/bitmap.hxx> // for BitmapSystemData +#include <string.h> + +// ----------- +// - Inlines - +// ----------- + +inline void ImplSetPixel4( const HPBYTE pScanline, long nX, const BYTE cIndex ) +{ + BYTE& rByte = pScanline[ nX >> 1 ]; + + ( nX & 1 ) ? ( rByte &= 0xf0, rByte |= ( cIndex & 0x0f ) ) : + ( rByte &= 0x0f, rByte |= ( cIndex << 4 ) ); +} + +// ---------------- +// - WinSalBitmap - +// ---------------- + +WinSalBitmap::WinSalBitmap() : + mhDIB ( 0 ), + mhDDB ( 0 ), + mnBitCount ( 0 ) +{ +} + +// ------------------------------------------------------------------ + +WinSalBitmap::~WinSalBitmap() +{ + Destroy(); +} + +// ------------------------------------------------------------------ + +bool WinSalBitmap::Create( HANDLE hBitmap, bool bDIB, bool bCopyHandle ) +{ + bool bRet = TRUE; + + if( bDIB ) + mhDIB = (HGLOBAL) ( bCopyHandle ? ImplCopyDIBOrDDB( hBitmap, TRUE ) : hBitmap ); + else + mhDDB = (HBITMAP) ( bCopyHandle ? ImplCopyDIBOrDDB( hBitmap, FALSE ) : hBitmap ); + + if( mhDIB ) + { + PBITMAPINFOHEADER pBIH = (PBITMAPINFOHEADER) GlobalLock( mhDIB ); + + maSize = Size( pBIH->biWidth, pBIH->biHeight ); + mnBitCount = pBIH->biBitCount; + + if( mnBitCount ) + mnBitCount = ( mnBitCount <= 1 ) ? 1 : ( mnBitCount <= 4 ) ? 4 : ( mnBitCount <= 8 ) ? 8 : 24; + + GlobalUnlock( mhDIB ); + } + else if( mhDDB ) + { + BITMAP aDDBInfo; + + if( WIN_GetObject( mhDDB, sizeof( BITMAP ), &aDDBInfo ) ) + { + maSize = Size( aDDBInfo.bmWidth, aDDBInfo.bmHeight ); + mnBitCount = aDDBInfo.bmPlanes * aDDBInfo.bmBitsPixel; + + if( mnBitCount ) + { + mnBitCount = ( mnBitCount <= 1 ) ? 1 : + ( mnBitCount <= 4 ) ? 4 : + ( mnBitCount <= 8 ) ? 8 : 24; + } + } + else + { + mhDDB = 0; + bRet = FALSE; + } + } + else + bRet = FALSE; + + return bRet; +} + +// ------------------------------------------------------------------ + +bool WinSalBitmap::Create( const Size& rSize, USHORT nBitCount, const BitmapPalette& rPal ) +{ + bool bRet = FALSE; + + mhDIB = ImplCreateDIB( rSize, nBitCount, rPal ); + + if( mhDIB ) + { + maSize = rSize; + mnBitCount = nBitCount; + bRet = TRUE; + } + + return bRet; +} + +// ------------------------------------------------------------------ + +bool WinSalBitmap::Create( const SalBitmap& rSSalBitmap ) +{ + bool bRet = FALSE; + const WinSalBitmap& rSalBitmap = static_cast<const WinSalBitmap&>(rSSalBitmap); + + if ( rSalBitmap.mhDIB || rSalBitmap.mhDDB ) + { + HANDLE hNewHdl = ImplCopyDIBOrDDB( rSalBitmap.mhDIB ? rSalBitmap.mhDIB : rSalBitmap.mhDDB, + rSalBitmap.mhDIB != 0 ); + + if ( hNewHdl ) + { + if( rSalBitmap.mhDIB ) + mhDIB = (HGLOBAL) hNewHdl; + else if( rSalBitmap.mhDDB ) + mhDDB = (HBITMAP) hNewHdl; + + maSize = rSalBitmap.maSize; + mnBitCount = rSalBitmap.mnBitCount; + + bRet = TRUE; + } + } + + return bRet; +} + +// ------------------------------------------------------------------ + +bool WinSalBitmap::Create( const SalBitmap& rSSalBmp, SalGraphics* pSGraphics ) +{ + bool bRet = FALSE; + + const WinSalBitmap& rSalBmp = static_cast<const WinSalBitmap&>(rSSalBmp); + WinSalGraphics* pGraphics = static_cast<WinSalGraphics*>(pSGraphics); + + if( rSalBmp.mhDIB ) + { + PBITMAPINFO pBI = (PBITMAPINFO) GlobalLock( rSalBmp.mhDIB ); + PBITMAPINFOHEADER pBIH = (PBITMAPINFOHEADER) pBI; + HDC hDC = pGraphics->mhDC; + HBITMAP hNewDDB; + BITMAP aDDBInfo; + PBYTE pBits = (PBYTE) pBI + *(DWORD*) pBI + + ImplGetDIBColorCount( rSalBmp.mhDIB ) * sizeof( RGBQUAD ); + + if( pBIH->biBitCount == 1 ) + { + hNewDDB = CreateBitmap( pBIH->biWidth, pBIH->biHeight, 1, 1, NULL ); + + if( hNewDDB ) + SetDIBits( hDC, hNewDDB, 0, pBIH->biHeight, pBits, pBI, DIB_RGB_COLORS ); + } + else + hNewDDB = CreateDIBitmap( hDC, (PBITMAPINFOHEADER) pBI, CBM_INIT, pBits, pBI, DIB_RGB_COLORS ); + + GlobalUnlock( rSalBmp.mhDIB ); + + if( hNewDDB && WIN_GetObject( hNewDDB, sizeof( BITMAP ), &aDDBInfo ) ) + { + mhDDB = hNewDDB; + maSize = Size( aDDBInfo.bmWidth, aDDBInfo.bmHeight ); + mnBitCount = aDDBInfo.bmPlanes * aDDBInfo.bmBitsPixel; + + bRet = TRUE; + } + else if( hNewDDB ) + DeleteObject( hNewDDB ); + } + + return bRet; +} + +// ------------------------------------------------------------------ + +bool WinSalBitmap::Create( const SalBitmap& rSSalBmp, USHORT nNewBitCount ) +{ + bool bRet = FALSE; + + const WinSalBitmap& rSalBmp = static_cast<const WinSalBitmap&>(rSSalBmp); + + if( rSalBmp.mhDDB ) + { + mhDIB = ImplCreateDIB( rSalBmp.maSize, nNewBitCount, BitmapPalette() ); + + if( mhDIB ) + { + PBITMAPINFO pBI = (PBITMAPINFO) GlobalLock( mhDIB ); + const int nLines = (int) rSalBmp.maSize.Height(); + HDC hDC = GetDC( 0 ); + PBYTE pBits = (PBYTE) pBI + *(DWORD*) pBI + + ImplGetDIBColorCount( mhDIB ) * sizeof( RGBQUAD ); + SalData* pSalData = GetSalData(); + HPALETTE hOldPal = 0; + + if ( pSalData->mhDitherPal ) + { + hOldPal = SelectPalette( hDC, pSalData->mhDitherPal, TRUE ); + RealizePalette( hDC ); + } + + if( GetDIBits( hDC, rSalBmp.mhDDB, 0, nLines, pBits, pBI, DIB_RGB_COLORS ) == nLines ) + { + GlobalUnlock( mhDIB ); + maSize = rSalBmp.maSize; + mnBitCount = nNewBitCount; + bRet = TRUE; + } + else + { + GlobalUnlock( mhDIB ); + GlobalFree( mhDIB ); + mhDIB = 0; + } + + if( hOldPal ) + SelectPalette( hDC, hOldPal, TRUE ); + + ReleaseDC( 0, hDC ); + } + } + + return bRet; +} + +// ------------------------------------------------------------------ + +void WinSalBitmap::Destroy() +{ + if( mhDIB ) + GlobalFree( mhDIB ); + else if( mhDDB ) + DeleteObject( mhDDB ); + + maSize = Size(); + mnBitCount = 0; +} + +// ------------------------------------------------------------------ + +USHORT WinSalBitmap::ImplGetDIBColorCount( HGLOBAL hDIB ) +{ + USHORT nColors = 0; + + if( hDIB ) + { + PBITMAPINFO pBI = (PBITMAPINFO) GlobalLock( hDIB ); + PBITMAPINFOHEADER pBIH = (PBITMAPINFOHEADER) pBI; + + if ( pBIH->biSize != sizeof( BITMAPCOREHEADER ) ) + { + if( pBIH->biBitCount <= 8 ) + { + if ( pBIH->biClrUsed ) + nColors = (USHORT) pBIH->biClrUsed; + else + nColors = 1 << pBIH->biBitCount; + } + } + else if( ( (PBITMAPCOREHEADER) pBI )->bcBitCount <= 8 ) + nColors = 1 << ( (PBITMAPCOREHEADER) pBI )->bcBitCount; + + GlobalUnlock( hDIB ); + } + + return nColors; +} + +// ------------------------------------------------------------------ + +HGLOBAL WinSalBitmap::ImplCreateDIB( const Size& rSize, USHORT nBits, const BitmapPalette& rPal ) +{ + DBG_ASSERT( nBits == 1 || nBits == 4 || nBits == 8 || nBits == 16 || nBits == 24, "Unsupported BitCount!" ); + + HGLOBAL hDIB = 0; + + if ( rSize.Width() && rSize.Height() ) + { + const ULONG nImageSize = AlignedWidth4Bytes( nBits * rSize.Width() ) * rSize.Height(); + const USHORT nColors = ( nBits <= 8 ) ? ( 1 << nBits ) : 0; + + hDIB = GlobalAlloc( GHND, sizeof( BITMAPINFOHEADER ) + nColors * sizeof( RGBQUAD ) + nImageSize ); + + if( hDIB ) + { + PBITMAPINFO pBI = (PBITMAPINFO) GlobalLock( hDIB ); + PBITMAPINFOHEADER pBIH = (PBITMAPINFOHEADER) pBI; + + pBIH->biSize = sizeof( BITMAPINFOHEADER ); + pBIH->biWidth = rSize.Width(); + pBIH->biHeight = rSize.Height(); + pBIH->biPlanes = 1; + pBIH->biBitCount = nBits; + pBIH->biCompression = BI_RGB; + pBIH->biSizeImage = nImageSize; + pBIH->biXPelsPerMeter = 0; + pBIH->biYPelsPerMeter = 0; + pBIH->biClrUsed = 0; + pBIH->biClrImportant = 0; + + if ( nColors ) + { + const USHORT nMinCount = Min( nColors, rPal.GetEntryCount() ); + + if( nMinCount ) + memcpy( pBI->bmiColors, rPal.ImplGetColorBuffer(), nMinCount * sizeof( RGBQUAD ) ); + } + + GlobalUnlock( hDIB ); + } + } + + return hDIB; +} + +// ------------------------------------------------------------------ + +HANDLE WinSalBitmap::ImplCopyDIBOrDDB( HANDLE hHdl, bool bDIB ) +{ + HANDLE hCopy = 0; + + if ( bDIB && hHdl ) + { + const ULONG nSize = GlobalSize( hHdl ); + + if ( (hCopy = GlobalAlloc( GHND, nSize )) != 0 ) + { + memcpy( (LPSTR) GlobalLock( hCopy ), (LPSTR) GlobalLock( hHdl ), nSize ); + + GlobalUnlock( hCopy ); + GlobalUnlock( hHdl ); + } + } + else if ( hHdl ) + { + BITMAP aBmp; + + // Source-Bitmap nach Groesse befragen + WIN_GetObject( hHdl, sizeof( BITMAP ), (LPSTR) &aBmp ); + + // Destination-Bitmap erzeugen + if ( (hCopy = CreateBitmapIndirect( &aBmp )) != 0 ) + { + HDC hBmpDC = CreateCompatibleDC( 0 ); + HBITMAP hBmpOld = (HBITMAP) SelectObject( hBmpDC, hHdl ); + HDC hCopyDC = CreateCompatibleDC( hBmpDC ); + HBITMAP hCopyOld = (HBITMAP) SelectObject( hCopyDC, hCopy ); + + BitBlt( hCopyDC, 0, 0, aBmp.bmWidth, aBmp.bmHeight, hBmpDC, 0, 0, SRCCOPY ); + + SelectObject( hCopyDC, hCopyOld ); + DeleteDC( hCopyDC ); + + SelectObject( hBmpDC, hBmpOld ); + DeleteDC( hBmpDC ); + } + } + + return hCopy; +} + +// ------------------------------------------------------------------ + +BitmapBuffer* WinSalBitmap::AcquireBuffer( bool /*bReadOnly*/ ) +{ + BitmapBuffer* pBuffer = NULL; + + if( mhDIB ) + { + PBITMAPINFO pBI = (PBITMAPINFO) GlobalLock( mhDIB ); + PBITMAPINFOHEADER pBIH = (PBITMAPINFOHEADER) pBI; + + if( ( pBIH->biCompression == BI_RLE4 ) || ( pBIH->biCompression == BI_RLE8 ) ) + { + Size aSizePix( pBIH->biWidth, pBIH->biHeight ); + HGLOBAL hNewDIB = ImplCreateDIB( aSizePix, pBIH->biBitCount, BitmapPalette() ); + + if( hNewDIB ) + { + PBITMAPINFO pNewBI = (PBITMAPINFO) GlobalLock( hNewDIB ); + PBITMAPINFOHEADER pNewBIH = (PBITMAPINFOHEADER) pNewBI; + const USHORT nColorCount = ImplGetDIBColorCount( hNewDIB ); + const ULONG nOffset = *(DWORD*) pBI + nColorCount * sizeof( RGBQUAD ); + BYTE* pOldBits = (PBYTE) pBI + nOffset; + BYTE* pNewBits = (PBYTE) pNewBI + nOffset; + + memcpy( pNewBI, pBI, nOffset ); + pNewBIH->biCompression = 0; + ImplDecodeRLEBuffer( pOldBits, pNewBits, aSizePix, pBIH->biCompression == BI_RLE4 ); + + GlobalUnlock( mhDIB ); + GlobalFree( mhDIB ); + mhDIB = hNewDIB; + pBI = pNewBI; + pBIH = pNewBIH; + } + } + + if( pBIH->biPlanes == 1 ) + { + pBuffer = new BitmapBuffer; + + pBuffer->mnFormat = BMP_FORMAT_BOTTOM_UP | + ( pBIH->biBitCount == 1 ? BMP_FORMAT_1BIT_MSB_PAL : + pBIH->biBitCount == 4 ? BMP_FORMAT_4BIT_MSN_PAL : + pBIH->biBitCount == 8 ? BMP_FORMAT_8BIT_PAL : + pBIH->biBitCount == 16 ? BMP_FORMAT_16BIT_TC_LSB_MASK : + pBIH->biBitCount == 24 ? BMP_FORMAT_24BIT_TC_BGR : + pBIH->biBitCount == 32 ? BMP_FORMAT_32BIT_TC_MASK : 0UL ); + + if( BMP_SCANLINE_FORMAT( pBuffer->mnFormat ) ) + { + pBuffer->mnWidth = maSize.Width(); + pBuffer->mnHeight = maSize.Height(); + pBuffer->mnScanlineSize = AlignedWidth4Bytes( maSize.Width() * pBIH->biBitCount ); + pBuffer->mnBitCount = (USHORT) pBIH->biBitCount; + + if( pBuffer->mnBitCount <= 8 ) + { + const USHORT nPalCount = ImplGetDIBColorCount( mhDIB ); + + pBuffer->maPalette.SetEntryCount( nPalCount ); + memcpy( pBuffer->maPalette.ImplGetColorBuffer(), pBI->bmiColors, nPalCount * sizeof( RGBQUAD ) ); + pBuffer->mpBits = (PBYTE) pBI + *(DWORD*) pBI + nPalCount * sizeof( RGBQUAD ); + } + else if( ( pBIH->biBitCount == 16 ) || ( pBIH->biBitCount == 32 ) ) + { + ULONG nOffset = 0UL; + + if( pBIH->biCompression == BI_BITFIELDS ) + { + nOffset = 3 * sizeof( RGBQUAD ); + pBuffer->maColorMask = ColorMask( *(UINT32*) &pBI->bmiColors[ 0 ], + *(UINT32*) &pBI->bmiColors[ 1 ], + *(UINT32*) &pBI->bmiColors[ 2 ] ); + } + else if( pBIH->biBitCount == 16 ) + pBuffer->maColorMask = ColorMask( 0x00007c00UL, 0x000003e0UL, 0x0000001fUL ); + else + pBuffer->maColorMask = ColorMask( 0x00ff0000UL, 0x0000ff00UL, 0x000000ffUL ); + + pBuffer->mpBits = (PBYTE) pBI + *(DWORD*) pBI + nOffset; + } + else + pBuffer->mpBits = (PBYTE) pBI + *(DWORD*) pBI; + } + else + { + GlobalUnlock( mhDIB ); + delete pBuffer; + pBuffer = NULL; + } + } + else + GlobalUnlock( mhDIB ); + } + + return pBuffer; +} + +// ------------------------------------------------------------------ + +void WinSalBitmap::ReleaseBuffer( BitmapBuffer* pBuffer, bool bReadOnly ) +{ + if( pBuffer ) + { + if( mhDIB ) + { + if( !bReadOnly && !!pBuffer->maPalette ) + { + PBITMAPINFO pBI = (PBITMAPINFO) GlobalLock( mhDIB ); + const USHORT nCount = pBuffer->maPalette.GetEntryCount(); + + memcpy( pBI->bmiColors, pBuffer->maPalette.ImplGetColorBuffer(), nCount * sizeof( RGBQUAD ) ); + GlobalUnlock( mhDIB ); + } + + GlobalUnlock( mhDIB ); + } + + delete pBuffer; + } +} + +// ------------------------------------------------------------------ + +void WinSalBitmap::ImplDecodeRLEBuffer( const BYTE* pSrcBuf, BYTE* pDstBuf, + const Size& rSizePixel, bool bRLE4 ) +{ + HPBYTE pRLE = (HPBYTE) pSrcBuf; + HPBYTE pDIB = (HPBYTE) pDstBuf; + HPBYTE pRow = (HPBYTE) pDstBuf; + ULONG nWidthAl = AlignedWidth4Bytes( rSizePixel.Width() * ( bRLE4 ? 4UL : 8UL ) ); + HPBYTE pLast = pDIB + rSizePixel.Height() * nWidthAl - 1; + ULONG nCountByte; + ULONG nRunByte; + ULONG nX = 0; + ULONG i; + BYTE cTmp; + bool bEndDecoding = FALSE; + + if( pRLE && pDIB ) + { + do + { + if( ( nCountByte = *pRLE++ ) == 0 ) + { + nRunByte = *pRLE++; + + if( nRunByte > 2UL ) + { + if( bRLE4 ) + { + nCountByte = nRunByte >> 1UL; + + for( i = 0; i < nCountByte; i++ ) + { + cTmp = *pRLE++; + ImplSetPixel4( pDIB, nX++, cTmp >> 4 ); + ImplSetPixel4( pDIB, nX++, cTmp & 0x0f ); + } + + if( nRunByte & 1 ) + ImplSetPixel4( pDIB, nX++, *pRLE++ >> 4 ); + + if( ( ( nRunByte + 1 ) >> 1 ) & 1 ) + pRLE++; + } + else + { + memcpy( &pDIB[ nX ], pRLE, nRunByte ); + pRLE += nRunByte; + nX += nRunByte; + + if( nRunByte & 1 ) + pRLE++; + } + } + else if( !nRunByte ) + { + pDIB = ( pRow += nWidthAl ); + nX = 0UL; + } + else if( nRunByte == 1 ) + bEndDecoding = TRUE; + else + { + nX += *pRLE++; + pDIB = ( pRow += ( *pRLE++ ) * nWidthAl ); + } + } + else + { + cTmp = *pRLE++; + + if( bRLE4 ) + { + nRunByte = nCountByte >> 1; + + for( i = 0; i < nRunByte; i++ ) + { + ImplSetPixel4( pDIB, nX++, cTmp >> 4 ); + ImplSetPixel4( pDIB, nX++, cTmp & 0x0f ); + } + + if( nCountByte & 1 ) + ImplSetPixel4( pDIB, nX++, cTmp >> 4 ); + } + else + { + for( i = 0; i < nCountByte; i++ ) + pDIB[ nX++ ] = cTmp; + } + } + } + while( !bEndDecoding && ( pDIB <= pLast ) ); + } +} + +bool WinSalBitmap::GetSystemData( BitmapSystemData& rData ) +{ + bool bRet = false; + if( mhDIB || mhDDB ) + { + bRet = true; + rData.pDIB = mhDIB; + rData.pDDB = mhDDB; + const Size& rSize = GetSize (); + rData.mnWidth = rSize.Width(); + rData.mnHeight = rSize.Height(); + } + return bRet; +} |