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Diffstat (limited to 'dtrans/source/X11/bmp.cxx')
| -rw-r--r-- | dtrans/source/X11/bmp.cxx | 742 |
1 files changed, 0 insertions, 742 deletions
diff --git a/dtrans/source/X11/bmp.cxx b/dtrans/source/X11/bmp.cxx deleted file mode 100644 index 372dad10b696..000000000000 --- a/dtrans/source/X11/bmp.cxx +++ /dev/null @@ -1,742 +0,0 @@ -/************************************************************************* - * - * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. - * - * Copyright 2008 by Sun Microsystems, Inc. - * - * OpenOffice.org - a multi-platform office productivity suite - * - * $RCSfile: bmp.cxx,v $ - * $Revision: 1.8 $ - * - * 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_dtrans.hxx" - -#include <unistd.h> -#include <cstdio> -#include <cstring> - -#include <bmp.hxx> - -#include <X11_selection.hxx> - -using namespace x11; -using namespace com::sun::star::uno; -using namespace com::sun::star::script; -using namespace com::sun::star::awt; -using namespace rtl; - -/* - * helper functions - */ - -inline void writeLE( sal_uInt16 nNumber, sal_uInt8* pBuffer ) -{ - pBuffer[ 0 ] = (nNumber & 0xff); - pBuffer[ 1 ] = ((nNumber>>8)&0xff); -} - -inline void writeLE( sal_uInt32 nNumber, sal_uInt8* pBuffer ) -{ - pBuffer[ 0 ] = (nNumber & 0xff); - pBuffer[ 1 ] = ((nNumber>>8)&0xff); - pBuffer[ 2 ] = ((nNumber>>16)&0xff); - pBuffer[ 3 ] = ((nNumber>>24)&0xff); -} - -inline sal_uInt16 readLE16( const sal_uInt8* pBuffer ) -{ - return (((sal_uInt16)pBuffer[1]) << 8 ) | pBuffer[0]; -} - -inline sal_uInt16 readLE32( const sal_uInt8* pBuffer ) -{ - return - (((sal_uInt32)pBuffer[3]) << 24 ) | - (((sal_uInt32)pBuffer[2]) << 16 ) | - (((sal_uInt32)pBuffer[1]) << 8 ) | - pBuffer[0]; -} - - -/* - * BmpTransporter - */ - -BmpTransporter::BmpTransporter( const Sequence<sal_Int8>& rBmp ) : - m_aBM( rBmp ) -{ - const sal_uInt8* pData = (const sal_uInt8*)rBmp.getConstArray(); - - if( pData[0] == 'B' || pData[1] == 'M' ) - { - pData = pData+14; - m_aSize.Width = readLE32( pData+4 ); - m_aSize.Height = readLE32( pData+8 ); - } - else - m_aSize.Width = m_aSize.Height = 0; -} - -BmpTransporter::~BmpTransporter() -{ -} - -com::sun::star::awt::Size SAL_CALL BmpTransporter::getSize() throw() -{ - return m_aSize; -} - -Sequence< sal_Int8 > SAL_CALL BmpTransporter::getDIB() throw() -{ - return m_aBM; -} - -Sequence< sal_Int8 > SAL_CALL BmpTransporter::getMaskDIB() throw() -{ - return Sequence< sal_Int8 >(); -} - -/* - * scanline helpers - */ - -inline void X11_writeScanlinePixel( unsigned long nColor, sal_uInt8* pScanline, int depth, int x ) -{ - switch( depth ) - { - case 1: - pScanline[ x/8 ] &= ~(1 << (x&7)); - pScanline[ x/8 ] |= ((nColor & 1) << (x&7)); - break; - case 4: - pScanline[ x/2 ] &= ((x&1) ? 0x0f : 0xf0); - pScanline[ x/2 ] |= ((x&1) ? (nColor & 0x0f) : ((nColor & 0x0f) << 4)); - break; - default: - case 8: - pScanline[ x ] = (nColor & 0xff); - break; - } -} - -static sal_uInt8* X11_getPaletteBmpFromImage( - Display* pDisplay, - XImage* pImage, - Colormap aColormap, - sal_Int32& rOutSize - ) -{ - sal_uInt32 nColors = 0; - - rOutSize = 0; - - sal_uInt8* pBuffer = 0; - sal_uInt32 nHeaderSize, nScanlineSize; - sal_uInt16 nBitCount; - // determine header and scanline size - switch( pImage->depth ) - { - case 1: - nHeaderSize = 64; - nScanlineSize = (pImage->width+31)/32; - nBitCount = 1; - break; - case 4: - nHeaderSize = 72; - nScanlineSize = (pImage->width+1)/2; - nBitCount = 4; - break; - default: - case 8: - nHeaderSize = 1084; - nScanlineSize = pImage->width; - nBitCount = 8; - break; - } - // adjust scan lines to begin on %4 boundaries - if( nScanlineSize & 3 ) - { - nScanlineSize &= 0xfffffffc; - nScanlineSize += 4; - } - - // allocate buffer to hold header and scanlines, initialize to zero - rOutSize = nHeaderSize + nScanlineSize*pImage->height; - pBuffer = (sal_uInt8*)rtl_allocateZeroMemory( rOutSize ); - for( int y = 0; y < pImage->height; y++ ) - { - sal_uInt8* pScanline = pBuffer + nHeaderSize + (pImage->height-1-y)*nScanlineSize; - for( int x = 0; x < pImage->width; x++ ) - { - unsigned long nPixel = XGetPixel( pImage, x, y ); - if( nPixel >= nColors ) - nColors = nPixel+1; - X11_writeScanlinePixel( nPixel, pScanline, pImage->depth, x ); - } - } - - // fill in header fields - pBuffer[ 0 ] = 'B'; - pBuffer[ 1 ] = 'M'; - - writeLE( nHeaderSize, pBuffer+10 ); - writeLE( (sal_uInt32)40, pBuffer+14 ); - writeLE( (sal_uInt32)pImage->width, pBuffer+18 ); - writeLE( (sal_uInt32)pImage->height, pBuffer+22 ); - writeLE( (sal_uInt16)1, pBuffer+26 ); - writeLE( nBitCount, pBuffer+28 ); - writeLE( (sal_uInt32)(DisplayWidth(pDisplay,DefaultScreen(pDisplay))*1000/DisplayWidthMM(pDisplay,DefaultScreen(pDisplay))), pBuffer+38); - writeLE( (sal_uInt32)(DisplayHeight(pDisplay,DefaultScreen(pDisplay))*1000/DisplayHeightMM(pDisplay,DefaultScreen(pDisplay))), pBuffer+42); - writeLE( nColors, pBuffer+46 ); - writeLE( nColors, pBuffer+50 ); - - XColor aColors[256]; - if( nColors > (1U << nBitCount) ) // paranoia - nColors = (1U << nBitCount); - for( unsigned long nPixel = 0; nPixel < nColors; nPixel++ ) - { - aColors[nPixel].flags = DoRed | DoGreen | DoBlue; - aColors[nPixel].pixel = nPixel; - } - XQueryColors( pDisplay, aColormap, aColors, nColors ); - for( sal_uInt32 i = 0; i < nColors; i++ ) - { - pBuffer[ 54 + i*4 ] = (sal_uInt8)(aColors[i].blue >> 8); - pBuffer[ 55 + i*4 ] = (sal_uInt8)(aColors[i].green >> 8); - pBuffer[ 56 + i*4 ] = (sal_uInt8)(aColors[i].red >> 8); - } - - // done - - return pBuffer; -} - -inline unsigned long doRightShift( unsigned long nValue, int nShift ) -{ - return (nShift > 0) ? (nValue >> nShift) : (nValue << (-nShift)); -} - -inline unsigned long doLeftShift( unsigned long nValue, int nShift ) -{ - return (nShift > 0) ? (nValue << nShift) : (nValue >> (-nShift)); -} - -static void getShift( unsigned long nMask, int& rShift, int& rSigBits, int& rShift2 ) -{ - unsigned long nUseMask = nMask; - rShift = 0; - while( nMask & 0xffffff00 ) - { - rShift++; - nMask >>= 1; - } - if( rShift == 0 ) - while( ! (nMask & 0x00000080) ) - { - rShift--; - nMask <<= 1; - } - - int nRotate = sizeof(unsigned long)*8 - rShift; - rSigBits = 0; - nMask = doRightShift( nUseMask, rShift) ; - while( nRotate-- ) - { - if( nMask & 1 ) - rSigBits++; - nMask >>= 1; - } - - rShift2 = 0; - if( rSigBits < 8 ) - rShift2 = 8-rSigBits; -} - -static sal_uInt8* X11_getTCBmpFromImage( - Display* pDisplay, - XImage* pImage, - sal_Int32& rOutSize, - int nScreenNo - ) -{ - // get masks from visual info (guesswork) - XVisualInfo aVInfo; - if( ! XMatchVisualInfo( pDisplay, nScreenNo, pImage->depth, TrueColor, &aVInfo ) ) - return NULL; - - rOutSize = 0; - - sal_uInt8* pBuffer = 0; - sal_uInt32 nHeaderSize = 60; - sal_uInt32 nScanlineSize = pImage->width*3; - - // adjust scan lines to begin on %4 boundaries - if( nScanlineSize & 3 ) - { - nScanlineSize &= 0xfffffffc; - nScanlineSize += 4; - } - int nRedShift, nRedSig, nRedShift2 = 0; - getShift( aVInfo.red_mask, nRedShift, nRedSig, nRedShift2 ); - int nGreenShift, nGreenSig, nGreenShift2 = 0; - getShift( aVInfo.green_mask, nGreenShift, nGreenSig, nGreenShift2 ); - int nBlueShift, nBlueSig, nBlueShift2 = 0; - getShift( aVInfo.blue_mask, nBlueShift, nBlueSig, nBlueShift2 ); - - // allocate buffer to hold header and scanlines, initialize to zero - rOutSize = nHeaderSize + nScanlineSize*pImage->height; - pBuffer = (sal_uInt8*)rtl_allocateZeroMemory( rOutSize ); - for( int y = 0; y < pImage->height; y++ ) - { - sal_uInt8* pScanline = pBuffer + nHeaderSize + (pImage->height-1-y)*nScanlineSize; - for( int x = 0; x < pImage->width; x++ ) - { - unsigned long nPixel = XGetPixel( pImage, x, y ); - - sal_uInt8 nValue = (sal_uInt8)doRightShift( nPixel&aVInfo.blue_mask, nBlueShift); - if( nBlueShift2 ) - nValue |= (nValue >> nBlueShift2 ); - *pScanline++ = nValue; - - nValue = (sal_uInt8)doRightShift( nPixel&aVInfo.green_mask, nGreenShift); - if( nGreenShift2 ) - nValue |= (nValue >> nGreenShift2 ); - *pScanline++ = nValue; - - nValue = (sal_uInt8)doRightShift( nPixel&aVInfo.red_mask, nRedShift); - if( nRedShift2 ) - nValue |= (nValue >> nRedShift2 ); - *pScanline++ = nValue; - } - } - - // fill in header fields - pBuffer[ 0 ] = 'B'; - pBuffer[ 1 ] = 'M'; - - writeLE( nHeaderSize, pBuffer+10 ); - writeLE( (sal_uInt32)40, pBuffer+14 ); - writeLE( (sal_uInt32)pImage->width, pBuffer+18 ); - writeLE( (sal_uInt32)pImage->height, pBuffer+22 ); - writeLE( (sal_uInt16)1, pBuffer+26 ); - writeLE( (sal_uInt16)24, pBuffer+28 ); - writeLE( (sal_uInt32)(DisplayWidth(pDisplay,DefaultScreen(pDisplay))*1000/DisplayWidthMM(pDisplay,DefaultScreen(pDisplay))), pBuffer+38); - writeLE( (sal_uInt32)(DisplayHeight(pDisplay,DefaultScreen(pDisplay))*1000/DisplayHeightMM(pDisplay,DefaultScreen(pDisplay))), pBuffer+42); - - // done - - return pBuffer; -} - -sal_uInt8* x11::X11_getBmpFromPixmap( - Display* pDisplay, - Drawable aDrawable, - Colormap aColormap, - sal_Int32& rOutSize - ) -{ - // get geometry of drawable - Window aRoot; - int x,y; - unsigned int w, h, bw, d; - XGetGeometry( pDisplay, aDrawable, &aRoot, &x, &y, &w, &h, &bw, &d ); - - // find which screen we are on - int nScreenNo = ScreenCount( pDisplay ); - while( nScreenNo-- ) - { - if( RootWindow( pDisplay, nScreenNo ) == aRoot ) - break; - } - if( nScreenNo < 0 ) - return NULL; - - if( aColormap == None ) - aColormap = DefaultColormap( pDisplay, nScreenNo ); - - // get the image - XImage* pImage = XGetImage( pDisplay, aDrawable, 0, 0, w, h, AllPlanes, ZPixmap ); - if( ! pImage ) - return NULL; - - sal_uInt8* pBmp = d <= 8 ? - X11_getPaletteBmpFromImage( pDisplay, pImage, aColormap, rOutSize ) : - X11_getTCBmpFromImage( pDisplay, pImage, rOutSize, nScreenNo ); - XDestroyImage( pImage ); - - return pBmp; -} - -void x11::X11_freeBmp( sal_uInt8* pBmp ) -{ - rtl_freeMemory( pBmp ); -} - -/* - * PixmapHolder - */ - -PixmapHolder::PixmapHolder( Display* pDisplay ) : - m_pDisplay( pDisplay ), - m_aColormap( None ), - m_aPixmap( None ), - m_aBitmap( None ) -{ - /* try to get a 24 bit true color visual, if that fails, - * revert to default visual - */ - if( ! XMatchVisualInfo( m_pDisplay, DefaultScreen( m_pDisplay ), 24, TrueColor, &m_aInfo ) ) - { -#if OSL_DEBUG_LEVEL > 1 - fprintf( stderr, "PixmapHolder reverting to default visual\n" ); -#endif - Visual* pVisual = DefaultVisual( m_pDisplay, DefaultScreen( m_pDisplay ) ); - m_aInfo.screen = DefaultScreen( m_pDisplay ); - m_aInfo.visual = pVisual; - m_aInfo.visualid = pVisual->visualid; - m_aInfo.c_class = pVisual->c_class; - m_aInfo.red_mask = pVisual->red_mask; - m_aInfo.green_mask = pVisual->green_mask; - m_aInfo.blue_mask = pVisual->blue_mask; - m_aInfo.depth = DefaultDepth( m_pDisplay, m_aInfo.screen ); - } - m_aColormap = DefaultColormap( m_pDisplay, m_aInfo.screen ); -#if OSL_DEBUG_LEVEL > 1 - static const char* pClasses[] = - { "StaticGray", "GrayScale", "StaticColor", "PseudoColor", "TrueColor", "DirectColor" }; - fprintf( stderr, "PixmapHolder visual: id = 0x%lx, class = %s (%d), depth=%d; color map = 0x%lx\n", - m_aInfo.visualid, - (m_aInfo.c_class >= 0 && unsigned(m_aInfo.c_class) < sizeof(pClasses)/sizeof(pClasses[0])) ? pClasses[m_aInfo.c_class] : "<unknown>", - m_aInfo.c_class, - m_aInfo.depth, - m_aColormap ); -#endif - if( m_aInfo.c_class == TrueColor ) - { - int nRedSig, nGreenSig, nBlueSig; - m_nRedShift = m_nRedShift2 = 0; - getShift( m_aInfo.red_mask, m_nRedShift, nRedSig, m_nRedShift2 ); - m_nGreenShift = m_nGreenShift2 = 0; - getShift( m_aInfo.green_mask, m_nGreenShift, nGreenSig, m_nGreenShift2 ); - m_nBlueShift = m_nBlueShift2 = 0; - getShift( m_aInfo.blue_mask, m_nBlueShift, nBlueSig, m_nBlueShift2 ); - - m_nBlueShift2Mask = m_nBlueShift2 ? ~((unsigned long)((1<<m_nBlueShift2)-1)) : ~0L; - m_nGreenShift2Mask = m_nGreenShift2 ? ~((unsigned long)((1<<m_nGreenShift2)-1)) : ~0L; - m_nRedShift2Mask = m_nRedShift2 ? ~((unsigned long)((1<<m_nRedShift2)-1)) : ~0L; - } -} - -PixmapHolder::~PixmapHolder() -{ - if( m_aPixmap != None ) - XFreePixmap( m_pDisplay, m_aPixmap ); - if( m_aBitmap != None ) - XFreePixmap( m_pDisplay, m_aBitmap ); -} - -unsigned long PixmapHolder::getTCPixel( sal_uInt8 r, sal_uInt8 g, sal_uInt8 b ) const -{ - unsigned long nPixel = 0; - unsigned long nValue = (unsigned long)b; - nValue &= m_nBlueShift2Mask; - nPixel |= doLeftShift( nValue, m_nBlueShift ); - - nValue = (unsigned long)g; - nValue &= m_nGreenShift2Mask; - nPixel |= doLeftShift( nValue, m_nGreenShift ); - - nValue = (unsigned long)r; - nValue &= m_nRedShift2Mask; - nPixel |= doLeftShift( nValue, m_nRedShift ); - - return nPixel; -} - -void PixmapHolder::setBitmapDataPalette( const sal_uInt8* pData, XImage* pImage ) -{ - // setup palette - XColor aPalette[256]; - - sal_uInt32 nColors = readLE32( pData+32 ); - sal_uInt32 nWidth = readLE32( pData+4 ); - sal_uInt32 nHeight = readLE32( pData+8 ); - sal_uInt16 nDepth = readLE16( pData+14 ); - - for( sal_uInt16 i = 0 ; i < nColors; i++ ) - { - if( m_aInfo.c_class != TrueColor ) - { - aPalette[i].red = ((unsigned short)pData[42 + i*4]) << 8 | ((unsigned short)pData[42 + i*4]); - aPalette[i].green = ((unsigned short)pData[41 + i*4]) << 8 | ((unsigned short)pData[41 + i*4]); - aPalette[i].blue = ((unsigned short)pData[40 + i*4]) << 8 | ((unsigned short)pData[40 + i*4]); - XAllocColor( m_pDisplay, m_aColormap, aPalette+i ); - } - else - aPalette[i].pixel = getTCPixel( pData[42+i*4], pData[41+i*4], pData[40+i*4] ); - } - const sal_uInt8* pBMData = pData + readLE32( pData ) + 4*nColors; - - sal_uInt32 nScanlineSize = 0; - switch( nDepth ) - { - case 1: - nScanlineSize = (nWidth+31)/32; - break; - case 4: - nScanlineSize = (nWidth+1)/2; - break; - case 8: - nScanlineSize = nWidth; - break; - } - // adjust scan lines to begin on %4 boundaries - if( nScanlineSize & 3 ) - { - nScanlineSize &= 0xfffffffc; - nScanlineSize += 4; - } - - // allocate buffer to hold header and scanlines, initialize to zero - for( unsigned int y = 0; y < nHeight; y++ ) - { - const sal_uInt8* pScanline = pBMData + (nHeight-1-y)*nScanlineSize; - for( unsigned int x = 0; x < nWidth; x++ ) - { - int nCol = 0; - switch( nDepth ) - { - case 1: nCol = (pScanline[ x/8 ] & (0x80 >> (x&7))) != 0 ? 0 : 1; break; - case 4: - if( x & 1 ) - nCol = (int)(pScanline[ x/2 ] >> 4); - else - nCol = (int)(pScanline[ x/2 ] & 0x0f); - break; - case 8: nCol = (int)pScanline[x]; - } - XPutPixel( pImage, x, y, aPalette[nCol].pixel ); - } - } -} - -void PixmapHolder::setBitmapDataTCDither( const sal_uInt8* pData, XImage* pImage ) -{ - XColor aPalette[216]; - - int nNonAllocs = 0; - - for( int r = 0; r < 6; r++ ) - { - for( int g = 0; g < 6; g++ ) - { - for( int b = 0; b < 6; b++ ) - { - int i = r*36+g*6+b; - aPalette[i].red = r == 5 ? 0xffff : r*10922; - aPalette[i].green = g == 5 ? 0xffff : g*10922; - aPalette[i].blue = b == 5 ? 0xffff : b*10922; - aPalette[i].pixel = 0; - if( ! XAllocColor( m_pDisplay, m_aColormap, aPalette+i ) ) - nNonAllocs++; - } - } - } - - if( nNonAllocs ) - { - XColor aRealPalette[256]; - int nColors = 1 << m_aInfo.depth; - int i; - for( i = 0; i < nColors; i++ ) - aRealPalette[i].pixel = (unsigned long)i; - XQueryColors( m_pDisplay, m_aColormap, aRealPalette, nColors ); - for( i = 0; i < nColors; i++ ) - { - sal_uInt8 nIndex = - 36*(sal_uInt8)(aRealPalette[i].red/10923) + - 6*(sal_uInt8)(aRealPalette[i].green/10923) + - (sal_uInt8)(aRealPalette[i].blue/10923); - if( aPalette[nIndex].pixel == 0 ) - aPalette[nIndex] = aRealPalette[i]; - } - } - - sal_uInt32 nWidth = readLE32( pData+4 ); - sal_uInt32 nHeight = readLE32( pData+8 ); - - const sal_uInt8* pBMData = pData + readLE32( pData ); - sal_uInt32 nScanlineSize = nWidth*3; - // adjust scan lines to begin on %4 boundaries - if( nScanlineSize & 3 ) - { - nScanlineSize &= 0xfffffffc; - nScanlineSize += 4; - } - - for( int y = 0; y < (int)nHeight; y++ ) - { - const sal_uInt8* pScanline = pBMData + (nHeight-1-(sal_uInt32)y)*nScanlineSize; - for( int x = 0; x < (int)nWidth; x++ ) - { - sal_uInt8 b = pScanline[3*x]; - sal_uInt8 g = pScanline[3*x+1]; - sal_uInt8 r = pScanline[3*x+2]; - sal_uInt8 i = 36*(r/43) + 6*(g/43) + (b/43); - - XPutPixel( pImage, x, y, aPalette[ i ].pixel ); - } - } -} - -void PixmapHolder::setBitmapDataTC( const sal_uInt8* pData, XImage* pImage ) -{ - sal_uInt32 nWidth = readLE32( pData+4 ); - sal_uInt32 nHeight = readLE32( pData+8 ); - - const sal_uInt8* pBMData = pData + readLE32( pData ); - sal_uInt32 nScanlineSize = nWidth*3; - // adjust scan lines to begin on %4 boundaries - if( nScanlineSize & 3 ) - { - nScanlineSize &= 0xfffffffc; - nScanlineSize += 4; - } - - for( int y = 0; y < (int)nHeight; y++ ) - { - const sal_uInt8* pScanline = pBMData + (nHeight-1-(sal_uInt32)y)*nScanlineSize; - for( int x = 0; x < (int)nWidth; x++ ) - { - unsigned long nPixel = getTCPixel( pScanline[3*x+2], pScanline[3*x+1], pScanline[3*x] ); - XPutPixel( pImage, x, y, nPixel ); - } - } -} - -bool PixmapHolder::needsConversion( const sal_uInt8* pData ) -{ - if( pData[0] != 'B' || pData[1] != 'M' ) - return true; - - pData = pData+14; - sal_uInt32 nDepth = readLE32( pData+14 ); - if( nDepth == 24 ) - { - if( m_aInfo.c_class != TrueColor ) - return true; - } - else if( nDepth != (sal_uInt32)m_aInfo.depth ) - { - if( m_aInfo.c_class != TrueColor ) - return true; - } - - return false; -} - -Pixmap PixmapHolder::setBitmapData( const sal_uInt8* pData ) -{ - if( pData[0] != 'B' || pData[1] != 'M' ) - return None; - - pData = pData+14; - - // reject compressed data - if( readLE32( pData + 16 ) != 0 ) - return None; - - sal_uInt32 nWidth = readLE32( pData+4 ); - sal_uInt32 nHeight = readLE32( pData+8 ); - - if( m_aPixmap != None ) - XFreePixmap( m_pDisplay, m_aPixmap ), m_aPixmap = None; - if( m_aBitmap != None ) - XFreePixmap( m_pDisplay, m_aBitmap ), m_aBitmap = None; - - m_aPixmap = XCreatePixmap( m_pDisplay, - RootWindow( m_pDisplay, m_aInfo.screen ), - nWidth, nHeight, m_aInfo.depth ); - - if( m_aPixmap != None ) - { - XImage aImage; - aImage.width = (int)nWidth; - aImage.height = (int)nHeight; - aImage.xoffset = 0; - aImage.format = ZPixmap; - aImage.data = NULL; - aImage.byte_order = ImageByteOrder( m_pDisplay ); - aImage.bitmap_unit = BitmapUnit( m_pDisplay ); - aImage.bitmap_bit_order = BitmapBitOrder( m_pDisplay ); - aImage.bitmap_pad = BitmapPad( m_pDisplay ); - aImage.depth = m_aInfo.depth; - aImage.red_mask = m_aInfo.red_mask; - aImage.green_mask = m_aInfo.green_mask; - aImage.blue_mask = m_aInfo.blue_mask; - aImage.bytes_per_line = 0; // filled in by XInitImage - if( m_aInfo.depth <= 8 ) - aImage.bits_per_pixel = m_aInfo.depth; - else - aImage.bits_per_pixel = 8*((m_aInfo.depth+7)/8); - aImage.obdata = NULL; - - XInitImage( &aImage ); - aImage.data = (char*)rtl_allocateMemory( nHeight*aImage.bytes_per_line ); - - if( readLE32( pData+14 ) == 24 ) - { - if( m_aInfo.c_class == TrueColor ) - setBitmapDataTC( pData, &aImage ); - else - setBitmapDataTCDither( pData, &aImage ); - } - else - setBitmapDataPalette( pData, &aImage ); - - // put the image - XPutImage( m_pDisplay, - m_aPixmap, - DefaultGC( m_pDisplay, m_aInfo.screen ), - &aImage, - 0, 0, - 0, 0, - nWidth, nHeight ); - - // clean up - rtl_freeMemory( aImage.data ); - - // prepare bitmap (mask) - m_aBitmap = XCreatePixmap( m_pDisplay, - RootWindow( m_pDisplay, m_aInfo.screen ), - nWidth, nHeight, 1 ); - XGCValues aVal; - aVal.function = GXcopy; - aVal.foreground = 0xffffffff; - GC aGC = XCreateGC( m_pDisplay, m_aBitmap, GCFunction | GCForeground, &aVal ); - XFillRectangle( m_pDisplay, m_aBitmap, aGC, 0, 0, nWidth, nHeight ); - XFreeGC( m_pDisplay, aGC ); - } - - return m_aPixmap; -} |