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Diffstat (limited to 'vcl/source/helper/canvasbitmap.cxx')
| -rw-r--r-- | vcl/source/helper/canvasbitmap.cxx | 1348 |
1 files changed, 1348 insertions, 0 deletions
diff --git a/vcl/source/helper/canvasbitmap.cxx b/vcl/source/helper/canvasbitmap.cxx new file mode 100644 index 000000000..8807ce7a1 --- /dev/null +++ b/vcl/source/helper/canvasbitmap.cxx @@ -0,0 +1,1348 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* + * This file is part of the LibreOffice project. + * + * This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. + * + * This file incorporates work covered by the following license notice: + * + * Licensed to the Apache Software Foundation (ASF) under one or more + * contributor license agreements. See the NOTICE file distributed + * with this work for additional information regarding copyright + * ownership. The ASF licenses this file to you under the Apache + * License, Version 2.0 (the "License"); you may not use this file + * except in compliance with the License. You may obtain a copy of + * the License at http://www.apache.org/licenses/LICENSE-2.0 . + */ + +#include <sal/config.h> + +#include <com/sun/star/lang/IndexOutOfBoundsException.hpp> +#include <com/sun/star/util/Endianness.hpp> +#include <com/sun/star/rendering/ColorComponentTag.hpp> +#include <com/sun/star/rendering/ColorSpaceType.hpp> +#include <com/sun/star/rendering/RenderingIntent.hpp> + +#include <tools/diagnose_ex.h> +#include <canvasbitmap.hxx> +#include <vcl/canvastools.hxx> +#include <vcl/BitmapReadAccess.hxx> +#include <vcl/svapp.hxx> + +#include <algorithm> + +using namespace vcl::unotools; +using namespace ::com::sun::star; + +namespace +{ + // TODO(Q3): move to o3tl bithacks or somesuch. A similar method is in canvas/canvastools.hxx + + // Good ole HAKMEM tradition. Calc number of 1 bits in 32bit word, + // unrolled loop. See e.g. Hackers Delight, p. 66 + sal_Int32 bitcount( sal_uInt32 val ) + { + val = val - ((val >> 1) & 0x55555555); + val = (val & 0x33333333) + ((val >> 2) & 0x33333333); + val = (val + (val >> 4)) & 0x0F0F0F0F; + val = val + (val >> 8); + val = val + (val >> 16); + return sal_Int32(val & 0x0000003F); + } +} + +void VclCanvasBitmap::setComponentInfo( sal_uInt32 redShift, sal_uInt32 greenShift, sal_uInt32 blueShift ) +{ + // sort channels in increasing order of appearance in the pixel + // (starting with the least significant bits) + sal_Int8 redPos(0); + sal_Int8 greenPos(1); + sal_Int8 bluePos(2); + + if( redShift > greenShift ) + { + std::swap(redPos,greenPos); + if( redShift > blueShift ) + { + std::swap(redPos,bluePos); + if( greenShift > blueShift ) + std::swap(greenPos,bluePos); + } + } + else + { + if( greenShift > blueShift ) + { + std::swap(greenPos,bluePos); + if( redShift > blueShift ) + std::swap(redPos,bluePos); + } + } + + m_aComponentTags.realloc(3); + sal_Int8* pTags = m_aComponentTags.getArray(); + pTags[redPos] = rendering::ColorComponentTag::RGB_RED; + pTags[greenPos] = rendering::ColorComponentTag::RGB_GREEN; + pTags[bluePos] = rendering::ColorComponentTag::RGB_BLUE; + + m_aComponentBitCounts.realloc(3); + sal_Int32* pCounts = m_aComponentBitCounts.getArray(); + pCounts[redPos] = bitcount(redShift); + pCounts[greenPos] = bitcount(greenShift); + pCounts[bluePos] = bitcount(blueShift); +} + +Bitmap::ScopedReadAccess& VclCanvasBitmap::getBitmapReadAccess() +{ + // BitmapReadAccess is more expensive than BitmapInfoAccess, + // as the latter requires also pixels, which may need converted + // from the system format (and even fetched). Most calls here + // need only info access, create read access only on demand. + if(!m_pBmpReadAcc) + m_pBmpReadAcc.emplace(m_aBitmap); + return *m_pBmpReadAcc; +} + +Bitmap::ScopedReadAccess& VclCanvasBitmap::getAlphaReadAccess() +{ + if(!m_pAlphaReadAcc) + m_pAlphaReadAcc.emplace(m_aAlpha); + return *m_pAlphaReadAcc; +} + +VclCanvasBitmap::VclCanvasBitmap( const BitmapEx& rBitmap ) : + m_aBmpEx( rBitmap ), + m_aBitmap( rBitmap.GetBitmap() ), + m_pBmpAcc( m_aBitmap ), + m_nBitsPerInputPixel(0), + m_nBitsPerOutputPixel(0), + m_nRedIndex(-1), + m_nGreenIndex(-1), + m_nBlueIndex(-1), + m_nAlphaIndex(-1), + m_nIndexIndex(-1), + m_bPalette(false) +{ + if( m_aBmpEx.IsAlpha() ) + { + m_aAlpha = m_aBmpEx.GetAlpha().GetBitmap(); + m_pAlphaAcc = Bitmap::ScopedInfoAccess(m_aAlpha); + } + + m_aLayout.ScanLines = 0; + m_aLayout.ScanLineBytes = 0; + m_aLayout.ScanLineStride = 0; + m_aLayout.PlaneStride = 0; + m_aLayout.ColorSpace.clear(); + m_aLayout.Palette.clear(); + m_aLayout.IsMsbFirst = false; + + if( !m_pBmpAcc ) + return; + + m_aLayout.ScanLines = m_pBmpAcc->Height(); + m_aLayout.ScanLineBytes = (m_pBmpAcc->GetBitCount()*m_pBmpAcc->Width() + 7) / 8; + m_aLayout.ScanLineStride = m_pBmpAcc->GetScanlineSize(); + m_aLayout.PlaneStride = 0; + + switch( m_pBmpAcc->GetScanlineFormat() ) + { + case ScanlineFormat::N1BitMsbPal: + m_bPalette = true; + m_nBitsPerInputPixel = 1; + m_aLayout.IsMsbFirst = true; + break; + + case ScanlineFormat::N1BitLsbPal: + m_bPalette = true; + m_nBitsPerInputPixel = 1; + m_aLayout.IsMsbFirst = false; + break; + + case ScanlineFormat::N8BitPal: + m_bPalette = true; + m_nBitsPerInputPixel = 8; + m_aLayout.IsMsbFirst = false; // doesn't matter + break; + + case ScanlineFormat::N24BitTcBgr: + m_bPalette = false; + m_nBitsPerInputPixel = 24; + m_aLayout.IsMsbFirst = false; // doesn't matter + setComponentInfo( static_cast<sal_uInt32>(0xff0000UL), + static_cast<sal_uInt32>(0x00ff00UL), + static_cast<sal_uInt32>(0x0000ffUL) ); + break; + + case ScanlineFormat::N24BitTcRgb: + m_bPalette = false; + m_nBitsPerInputPixel = 24; + m_aLayout.IsMsbFirst = false; // doesn't matter + setComponentInfo( static_cast<sal_uInt32>(0x0000ffUL), + static_cast<sal_uInt32>(0x00ff00UL), + static_cast<sal_uInt32>(0xff0000UL) ); + break; + + case ScanlineFormat::N32BitTcAbgr: + { + m_bPalette = false; + m_nBitsPerInputPixel = 32; + m_aLayout.IsMsbFirst = false; // doesn't matter + + m_aComponentTags = { /* 0 */ rendering::ColorComponentTag::ALPHA, + /* 1 */ rendering::ColorComponentTag::RGB_BLUE, + /* 2 */ rendering::ColorComponentTag::RGB_GREEN, + /* 3 */ rendering::ColorComponentTag::RGB_RED }; + + m_aComponentBitCounts = { /* 0 */ 8, + /* 1 */ 8, + /* 2 */ 8, + /* 3 */ 8 }; + + m_nRedIndex = 3; + m_nGreenIndex = 2; + m_nBlueIndex = 1; + m_nAlphaIndex = 0; + } + break; + + case ScanlineFormat::N32BitTcArgb: + { + m_bPalette = false; + m_nBitsPerInputPixel = 32; + m_aLayout.IsMsbFirst = false; // doesn't matter + + m_aComponentTags = { /* 0 */ rendering::ColorComponentTag::ALPHA, + /* 1 */ rendering::ColorComponentTag::RGB_RED, + /* 2 */ rendering::ColorComponentTag::RGB_GREEN, + /* 3 */ rendering::ColorComponentTag::RGB_BLUE }; + + m_aComponentBitCounts = { /* 0 */ 8, + /* 1 */ 8, + /* 2 */ 8, + /* 3 */ 8 }; + + m_nRedIndex = 1; + m_nGreenIndex = 2; + m_nBlueIndex = 3; + m_nAlphaIndex = 0; + } + break; + + case ScanlineFormat::N32BitTcBgra: + { + m_bPalette = false; + m_nBitsPerInputPixel = 32; + m_aLayout.IsMsbFirst = false; // doesn't matter + + m_aComponentTags = { /* 0 */ rendering::ColorComponentTag::RGB_BLUE, + /* 1 */ rendering::ColorComponentTag::RGB_GREEN, + /* 2 */ rendering::ColorComponentTag::RGB_RED, + /* 3 */ rendering::ColorComponentTag::ALPHA }; + + m_aComponentBitCounts = { /* 0 */ 8, + /* 1 */ 8, + /* 2 */ 8, + /* 3 */ 8 }; + + m_nRedIndex = 2; + m_nGreenIndex = 1; + m_nBlueIndex = 0; + m_nAlphaIndex = 3; + } + break; + + case ScanlineFormat::N32BitTcRgba: + { + m_bPalette = false; + m_nBitsPerInputPixel = 32; + m_aLayout.IsMsbFirst = false; // doesn't matter + + m_aComponentTags = { /* 0 */ rendering::ColorComponentTag::RGB_RED, + /* 1 */ rendering::ColorComponentTag::RGB_GREEN, + /* 2 */ rendering::ColorComponentTag::RGB_BLUE, + /* 3 */ rendering::ColorComponentTag::ALPHA }; + + m_aComponentBitCounts = { /* 0 */ 8, + /* 1 */ 8, + /* 2 */ 8, + /* 3 */ 8 }; + + m_nRedIndex = 0; + m_nGreenIndex = 1; + m_nBlueIndex = 2; + m_nAlphaIndex = 3; + } + break; + + case ScanlineFormat::N32BitTcMask: + m_bPalette = false; + m_nBitsPerInputPixel = 32; + m_aLayout.IsMsbFirst = false; // doesn't matter + setComponentInfo( m_pBmpAcc->GetColorMask().GetRedMask(), + m_pBmpAcc->GetColorMask().GetGreenMask(), + m_pBmpAcc->GetColorMask().GetBlueMask() ); + break; + + default: + OSL_FAIL( "unsupported bitmap format" ); + break; + } + + if( m_bPalette ) + { + m_aComponentTags = { rendering::ColorComponentTag::INDEX }; + + m_aComponentBitCounts = { m_nBitsPerInputPixel }; + + m_nIndexIndex = 0; + } + + m_nBitsPerOutputPixel = m_nBitsPerInputPixel; + if( !m_aBmpEx.IsAlpha() ) + return; + + // TODO(P1): need to interleave alpha with bitmap data - + // won't fuss with less-than-8 bit for now + m_nBitsPerOutputPixel = std::max(sal_Int32(8),m_nBitsPerInputPixel); + + // check whether alpha goes in front or behind the + // bitcount sequence. If pixel format is little endian, + // put it behind all the other channels. If it's big + // endian, put it in front (because later, the actual data + // always gets written after the pixel data) + + // TODO(Q1): slight catch - in the case of the + // BMP_FORMAT_32BIT_XX_ARGB formats, duplicate alpha + // channels might happen! + m_aComponentTags.realloc(m_aComponentTags.getLength()+1); + m_aComponentTags.getArray()[m_aComponentTags.getLength()-1] = rendering::ColorComponentTag::ALPHA; + + m_aComponentBitCounts.realloc(m_aComponentBitCounts.getLength()+1); + m_aComponentBitCounts.getArray()[m_aComponentBitCounts.getLength()-1] = m_aBmpEx.IsAlpha() ? 8 : 1; + + // always add a full byte to the pixel size, otherwise + // pixel packing hell breaks loose. + m_nBitsPerOutputPixel += 8; + + // adapt scanline parameters + const Size aSize = m_aBitmap.GetSizePixel(); + m_aLayout.ScanLineBytes = + m_aLayout.ScanLineStride = (aSize.Width()*m_nBitsPerOutputPixel + 7)/8; +} + +VclCanvasBitmap::~VclCanvasBitmap() +{ +} + +// XBitmap +geometry::IntegerSize2D SAL_CALL VclCanvasBitmap::getSize() +{ + SolarMutexGuard aGuard; + return integerSize2DFromSize( m_aBitmap.GetSizePixel() ); +} + +sal_Bool SAL_CALL VclCanvasBitmap::hasAlpha() +{ + SolarMutexGuard aGuard; + return m_aBmpEx.IsAlpha(); +} + +uno::Reference< rendering::XBitmap > SAL_CALL VclCanvasBitmap::getScaledBitmap( const geometry::RealSize2D& newSize, + sal_Bool beFast ) +{ + SolarMutexGuard aGuard; + + BitmapEx aNewBmp( m_aBitmap ); + aNewBmp.Scale( sizeFromRealSize2D( newSize ), beFast ? BmpScaleFlag::Default : BmpScaleFlag::BestQuality ); + return uno::Reference<rendering::XBitmap>( new VclCanvasBitmap( aNewBmp ) ); +} + +// XIntegerReadOnlyBitmap +uno::Sequence< sal_Int8 > SAL_CALL VclCanvasBitmap::getData( rendering::IntegerBitmapLayout& bitmapLayout, + const geometry::IntegerRectangle2D& rect ) +{ + SolarMutexGuard aGuard; + + bitmapLayout = getMemoryLayout(); + + const ::tools::Rectangle aRequestedArea( vcl::unotools::rectangleFromIntegerRectangle2D(rect) ); + if( aRequestedArea.IsEmpty() ) + return uno::Sequence< sal_Int8 >(); + + // Invalid/empty bitmap: no data available + if( !m_pBmpAcc ) + throw lang::IndexOutOfBoundsException(); + if( m_aBmpEx.IsAlpha() && !m_pAlphaAcc ) + throw lang::IndexOutOfBoundsException(); + + if( aRequestedArea.Left() < 0 || aRequestedArea.Top() < 0 || + aRequestedArea.Right() > m_pBmpAcc->Width() || + aRequestedArea.Bottom() > m_pBmpAcc->Height() ) + { + throw lang::IndexOutOfBoundsException(); + } + + uno::Sequence< sal_Int8 > aRet; + tools::Rectangle aRequestedBytes( aRequestedArea ); + + // adapt to byte boundaries + aRequestedBytes.SetLeft( aRequestedArea.Left()*m_nBitsPerOutputPixel/8 ); + aRequestedBytes.SetRight( (aRequestedArea.Right()*m_nBitsPerOutputPixel + 7)/8 ); + + // copy stuff to output sequence + aRet.realloc(aRequestedBytes.getWidth()*aRequestedBytes.getHeight()); + sal_Int8* pOutBuf = aRet.getArray(); + + bitmapLayout.ScanLines = aRequestedBytes.getHeight(); + bitmapLayout.ScanLineBytes = + bitmapLayout.ScanLineStride= aRequestedBytes.getWidth(); + + sal_Int32 nScanlineStride=bitmapLayout.ScanLineStride; + if( !(m_pBmpAcc->GetScanlineFormat() & ScanlineFormat::TopDown) ) + { + pOutBuf += bitmapLayout.ScanLineStride*(aRequestedBytes.getHeight()-1); + nScanlineStride *= -1; + } + + if( !m_aBmpEx.IsAlpha() ) + { + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + OSL_ENSURE(pBmpAcc,"Invalid bmp read access"); + + // can return bitmap data as-is + for( tools::Long y=aRequestedBytes.Top(); y<aRequestedBytes.Bottom(); ++y ) + { + Scanline pScan = pBmpAcc->GetScanline(y); + memcpy(pOutBuf, pScan+aRequestedBytes.Left(), aRequestedBytes.getWidth()); + pOutBuf += nScanlineStride; + } + } + else + { + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + Bitmap::ScopedReadAccess& pAlphaAcc = getAlphaReadAccess(); + OSL_ENSURE(pBmpAcc,"Invalid bmp read access"); + OSL_ENSURE(pAlphaAcc,"Invalid alpha read access"); + + // interleave alpha with bitmap data - note, bitcount is + // always integer multiple of 8 + OSL_ENSURE((m_nBitsPerOutputPixel & 0x07) == 0, + "Transparent bitmap bitcount not integer multiple of 8" ); + + for( tools::Long y=aRequestedArea.Top(); y<aRequestedArea.Bottom(); ++y ) + { + sal_Int8* pOutScan = pOutBuf; + + if( m_nBitsPerInputPixel < 8 ) + { + // input less than a byte - copy via GetPixel() + for( tools::Long x=aRequestedArea.Left(); x<aRequestedArea.Right(); ++x ) + { + *pOutScan++ = pBmpAcc->GetPixelIndex(y,x); + *pOutScan++ = pAlphaAcc->GetPixelIndex(y,x); + } + } + else + { + const tools::Long nNonAlphaBytes( m_nBitsPerInputPixel/8 ); + const tools::Long nScanlineOffsetLeft(aRequestedArea.Left()*nNonAlphaBytes); + Scanline pScan = pBmpAcc->GetScanline(y) + nScanlineOffsetLeft; + Scanline pScanlineAlpha = pAlphaAcc->GetScanline( y ); + + // input integer multiple of byte - copy directly + for( tools::Long x=aRequestedArea.Left(); x<aRequestedArea.Right(); ++x ) + { + for( tools::Long i=0; i<nNonAlphaBytes; ++i ) + *pOutScan++ = *pScan++; + *pOutScan++ = pAlphaAcc->GetIndexFromData( pScanlineAlpha, x ); + } + } + + pOutBuf += nScanlineStride; + } + } + + return aRet; +} + +uno::Sequence< sal_Int8 > SAL_CALL VclCanvasBitmap::getPixel( rendering::IntegerBitmapLayout& bitmapLayout, + const geometry::IntegerPoint2D& pos ) +{ + SolarMutexGuard aGuard; + + bitmapLayout = getMemoryLayout(); + + // Invalid/empty bitmap: no data available + if( !m_pBmpAcc ) + throw lang::IndexOutOfBoundsException(); + if( m_aBmpEx.IsAlpha() && !m_pAlphaAcc ) + throw lang::IndexOutOfBoundsException(); + + if( pos.X < 0 || pos.Y < 0 || + pos.X > m_pBmpAcc->Width() || pos.Y > m_pBmpAcc->Height() ) + { + throw lang::IndexOutOfBoundsException(); + } + + uno::Sequence< sal_Int8 > aRet((m_nBitsPerOutputPixel + 7)/8); + sal_Int8* pOutBuf = aRet.getArray(); + + // copy stuff to output sequence + bitmapLayout.ScanLines = 1; + bitmapLayout.ScanLineBytes = + bitmapLayout.ScanLineStride= aRet.getLength(); + + const tools::Long nScanlineLeftOffset( pos.X*m_nBitsPerInputPixel/8 ); + if( !m_aBmpEx.IsAlpha() ) + { + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + assert(pBmpAcc && "Invalid bmp read access"); + + // can return bitmap data as-is + Scanline pScan = pBmpAcc->GetScanline(pos.Y); + memcpy(pOutBuf, pScan+nScanlineLeftOffset, aRet.getLength() ); + } + else + { + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + Bitmap::ScopedReadAccess& pAlphaAcc = getAlphaReadAccess(); + assert(pBmpAcc && "Invalid bmp read access"); + assert(pAlphaAcc && "Invalid alpha read access"); + + // interleave alpha with bitmap data - note, bitcount is + // always integer multiple of 8 + assert((m_nBitsPerOutputPixel & 0x07) == 0 && + "Transparent bitmap bitcount not integer multiple of 8" ); + + if( m_nBitsPerInputPixel < 8 ) + { + // input less than a byte - copy via GetPixel() + *pOutBuf++ = pBmpAcc->GetPixelIndex(pos.Y,pos.X); + *pOutBuf = pAlphaAcc->GetPixelIndex(pos.Y,pos.X); + } + else + { + const tools::Long nNonAlphaBytes( m_nBitsPerInputPixel/8 ); + Scanline pScan = pBmpAcc->GetScanline(pos.Y); + + // input integer multiple of byte - copy directly + memcpy(pOutBuf, pScan+nScanlineLeftOffset, nNonAlphaBytes ); + pOutBuf += nNonAlphaBytes; + *pOutBuf++ = pAlphaAcc->GetPixelIndex(pos.Y,pos.X); + } + } + + return aRet; +} + +uno::Reference< rendering::XBitmapPalette > VclCanvasBitmap::getPalette() +{ + SolarMutexGuard aGuard; + + uno::Reference< XBitmapPalette > aRet; + if( m_bPalette ) + aRet.set(this); + + return aRet; +} + +rendering::IntegerBitmapLayout SAL_CALL VclCanvasBitmap::getMemoryLayout() +{ + SolarMutexGuard aGuard; + + rendering::IntegerBitmapLayout aLayout( m_aLayout ); + + // only set references to self on separate copy of + // IntegerBitmapLayout - if we'd set that on m_aLayout, we'd have + // a circular reference! + if( m_bPalette ) + aLayout.Palette.set( this ); + + aLayout.ColorSpace.set( this ); + + return aLayout; +} + +sal_Int32 SAL_CALL VclCanvasBitmap::getNumberOfEntries() +{ + SolarMutexGuard aGuard; + + if( !m_pBmpAcc ) + return 0; + + return m_pBmpAcc->HasPalette() ? m_pBmpAcc->GetPaletteEntryCount() : 0 ; +} + +sal_Bool SAL_CALL VclCanvasBitmap::getIndex( uno::Sequence< double >& o_entry, sal_Int32 nIndex ) +{ + SolarMutexGuard aGuard; + + const sal_uInt16 nCount( m_pBmpAcc ? + (m_pBmpAcc->HasPalette() ? m_pBmpAcc->GetPaletteEntryCount() : 0 ) : 0 ); + OSL_ENSURE(nIndex >= 0 && nIndex < nCount,"Palette index out of range"); + if( nIndex < 0 || nIndex >= nCount ) + throw lang::IndexOutOfBoundsException("Palette index out of range", + static_cast<rendering::XBitmapPalette*>(this)); + + const BitmapColor aCol = m_pBmpAcc->GetPaletteColor(sal::static_int_cast<sal_uInt16>(nIndex)); + o_entry.realloc(3); + double* pColor=o_entry.getArray(); + pColor[0] = aCol.GetRed(); + pColor[1] = aCol.GetGreen(); + pColor[2] = aCol.GetBlue(); + + return true; // no palette transparency here. +} + +sal_Bool SAL_CALL VclCanvasBitmap::setIndex( const uno::Sequence< double >&, sal_Bool, sal_Int32 nIndex ) +{ + SolarMutexGuard aGuard; + + const sal_uInt16 nCount( m_pBmpAcc ? + (m_pBmpAcc->HasPalette() ? m_pBmpAcc->GetPaletteEntryCount() : 0 ) : 0 ); + + OSL_ENSURE(nIndex >= 0 && nIndex < nCount,"Palette index out of range"); + if( nIndex < 0 || nIndex >= nCount ) + throw lang::IndexOutOfBoundsException("Palette index out of range", + static_cast<rendering::XBitmapPalette*>(this)); + + return false; // read-only implementation +} + +uno::Reference< rendering::XColorSpace > SAL_CALL VclCanvasBitmap::getColorSpace( ) +{ + // this is the method from XBitmapPalette. Return palette color + // space here + static uno::Reference<rendering::XColorSpace> gColorSpace = vcl::unotools::createStandardColorSpace(); + return gColorSpace; +} + +sal_Int8 SAL_CALL VclCanvasBitmap::getType( ) +{ + return rendering::ColorSpaceType::RGB; +} + +uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::getComponentTags( ) +{ + SolarMutexGuard aGuard; + return m_aComponentTags; +} + +sal_Int8 SAL_CALL VclCanvasBitmap::getRenderingIntent( ) +{ + return rendering::RenderingIntent::PERCEPTUAL; +} + +uno::Sequence< ::beans::PropertyValue > SAL_CALL VclCanvasBitmap::getProperties( ) +{ + return uno::Sequence< ::beans::PropertyValue >(); +} + +uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertColorSpace( const uno::Sequence< double >& deviceColor, + const uno::Reference< ::rendering::XColorSpace >& targetColorSpace ) +{ + // TODO(P3): if we know anything about target + // colorspace, this can be greatly sped up + uno::Sequence<rendering::ARGBColor> aIntermediate( + convertToARGB(deviceColor)); + return targetColorSpace->convertFromARGB(aIntermediate); +} + +uno::Sequence<rendering::RGBColor> SAL_CALL VclCanvasBitmap::convertToRGB( const uno::Sequence< double >& deviceColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( deviceColor.getLength() ); + const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength()); + ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0, + "number of channels no multiple of pixel element count", + static_cast<rendering::XBitmapPalette*>(this), 01); + + uno::Sequence< rendering::RGBColor > aRes(nLen/nComponentsPerPixel); + rendering::RGBColor* pOut( aRes.getArray() ); + + if( m_bPalette ) + { + OSL_ENSURE(m_nIndexIndex != -1, + "Invalid color channel indices"); + ENSURE_OR_THROW(m_pBmpAcc, + "Unable to get BitmapAccess"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + const BitmapColor aCol = m_pBmpAcc->GetPaletteColor( + sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex])); + + // TODO(F3): Convert result to sRGB color space + *pOut++ = rendering::RGBColor(toDoubleColor(aCol.GetRed()), + toDoubleColor(aCol.GetGreen()), + toDoubleColor(aCol.GetBlue())); + } + } + else + { + OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1, + "Invalid color channel indices"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + // TODO(F3): Convert result to sRGB color space + *pOut++ = rendering::RGBColor( + deviceColor[i+m_nRedIndex], + deviceColor[i+m_nGreenIndex], + deviceColor[i+m_nBlueIndex]); + } + } + + return aRes; +} + +uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertToARGB( const uno::Sequence< double >& deviceColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( deviceColor.getLength() ); + const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength()); + ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0, + "number of channels no multiple of pixel element count", + static_cast<rendering::XBitmapPalette*>(this), 01); + + uno::Sequence< rendering::ARGBColor > aRes(nLen/nComponentsPerPixel); + rendering::ARGBColor* pOut( aRes.getArray() ); + + if( m_bPalette ) + { + OSL_ENSURE(m_nIndexIndex != -1, + "Invalid color channel indices"); + ENSURE_OR_THROW(m_pBmpAcc, + "Unable to get BitmapAccess"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + const BitmapColor aCol = m_pBmpAcc->GetPaletteColor( + sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex])); + + // TODO(F3): Convert result to sRGB color space + const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 ); + *pOut++ = rendering::ARGBColor(nAlpha, + toDoubleColor(aCol.GetRed()), + toDoubleColor(aCol.GetGreen()), + toDoubleColor(aCol.GetBlue())); + } + } + else + { + OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1, + "Invalid color channel indices"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + // TODO(F3): Convert result to sRGB color space + const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 ); + *pOut++ = rendering::ARGBColor( + nAlpha, + deviceColor[i+m_nRedIndex], + deviceColor[i+m_nGreenIndex], + deviceColor[i+m_nBlueIndex]); + } + } + + return aRes; +} + +uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertToPARGB( const uno::Sequence< double >& deviceColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( deviceColor.getLength() ); + const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength()); + ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0, + "number of channels no multiple of pixel element count", + static_cast<rendering::XBitmapPalette*>(this), 01); + + uno::Sequence< rendering::ARGBColor > aRes(nLen/nComponentsPerPixel); + rendering::ARGBColor* pOut( aRes.getArray() ); + + if( m_bPalette ) + { + OSL_ENSURE(m_nIndexIndex != -1, + "Invalid color channel indices"); + ENSURE_OR_THROW(m_pBmpAcc, + "Unable to get BitmapAccess"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + const BitmapColor aCol = m_pBmpAcc->GetPaletteColor( + sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex])); + + // TODO(F3): Convert result to sRGB color space + const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 ); + *pOut++ = rendering::ARGBColor(nAlpha, + nAlpha*toDoubleColor(aCol.GetRed()), + nAlpha*toDoubleColor(aCol.GetGreen()), + nAlpha*toDoubleColor(aCol.GetBlue())); + } + } + else + { + OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1, + "Invalid color channel indices"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + // TODO(F3): Convert result to sRGB color space + const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 ); + *pOut++ = rendering::ARGBColor( + nAlpha, + nAlpha*deviceColor[i+m_nRedIndex], + nAlpha*deviceColor[i+m_nGreenIndex], + nAlpha*deviceColor[i+m_nBlueIndex]); + } + } + + return aRes; +} + +uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertFromRGB( const uno::Sequence<rendering::RGBColor>& rgbColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( rgbColor.getLength() ); + const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength()); + + uno::Sequence< double > aRes(nLen*nComponentsPerPixel); + double* pColors=aRes.getArray(); + + if( m_bPalette ) + { + for( const auto& rIn : rgbColor ) + { + pColors[m_nIndexIndex] = m_pBmpAcc->GetBestPaletteIndex( + BitmapColor(toByteColor(rIn.Red), + toByteColor(rIn.Green), + toByteColor(rIn.Blue))); + if( m_nAlphaIndex != -1 ) + pColors[m_nAlphaIndex] = 1.0; + + pColors += nComponentsPerPixel; + } + } + else + { + for( const auto& rIn : rgbColor ) + { + pColors[m_nRedIndex] = rIn.Red; + pColors[m_nGreenIndex] = rIn.Green; + pColors[m_nBlueIndex] = rIn.Blue; + if( m_nAlphaIndex != -1 ) + pColors[m_nAlphaIndex] = 1.0; + + pColors += nComponentsPerPixel; + } + } + return aRes; +} + +uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertFromARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( rgbColor.getLength() ); + const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength()); + + uno::Sequence< double > aRes(nLen*nComponentsPerPixel); + double* pColors=aRes.getArray(); + + if( m_bPalette ) + { + for( const auto& rIn : rgbColor ) + { + pColors[m_nIndexIndex] = m_pBmpAcc->GetBestPaletteIndex( + BitmapColor(toByteColor(rIn.Red), + toByteColor(rIn.Green), + toByteColor(rIn.Blue))); + if( m_nAlphaIndex != -1 ) + pColors[m_nAlphaIndex] = rIn.Alpha; + + pColors += nComponentsPerPixel; + } + } + else + { + for( const auto& rIn : rgbColor ) + { + pColors[m_nRedIndex] = rIn.Red; + pColors[m_nGreenIndex] = rIn.Green; + pColors[m_nBlueIndex] = rIn.Blue; + if( m_nAlphaIndex != -1 ) + pColors[m_nAlphaIndex] = rIn.Alpha; + + pColors += nComponentsPerPixel; + } + } + return aRes; +} + +uno::Sequence< double > SAL_CALL VclCanvasBitmap::convertFromPARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( rgbColor.getLength() ); + const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength()); + + uno::Sequence< double > aRes(nLen*nComponentsPerPixel); + double* pColors=aRes.getArray(); + + if( m_bPalette ) + { + for( const auto& rIn : rgbColor ) + { + const double nAlpha( rIn.Alpha ); + pColors[m_nIndexIndex] = m_pBmpAcc->GetBestPaletteIndex( + BitmapColor(toByteColor(rIn.Red / nAlpha), + toByteColor(rIn.Green / nAlpha), + toByteColor(rIn.Blue / nAlpha))); + if( m_nAlphaIndex != -1 ) + pColors[m_nAlphaIndex] = nAlpha; + + pColors += nComponentsPerPixel; + } + } + else + { + for( const auto& rIn : rgbColor ) + { + const double nAlpha( rIn.Alpha ); + pColors[m_nRedIndex] = rIn.Red / nAlpha; + pColors[m_nGreenIndex] = rIn.Green / nAlpha; + pColors[m_nBlueIndex] = rIn.Blue / nAlpha; + if( m_nAlphaIndex != -1 ) + pColors[m_nAlphaIndex] = nAlpha; + + pColors += nComponentsPerPixel; + } + } + return aRes; +} + +sal_Int32 SAL_CALL VclCanvasBitmap::getBitsPerPixel( ) +{ + SolarMutexGuard aGuard; + return m_nBitsPerOutputPixel; +} + +uno::Sequence< ::sal_Int32 > SAL_CALL VclCanvasBitmap::getComponentBitCounts( ) +{ + SolarMutexGuard aGuard; + return m_aComponentBitCounts; +} + +sal_Int8 SAL_CALL VclCanvasBitmap::getEndianness( ) +{ + return util::Endianness::LITTLE; +} + +uno::Sequence<double> SAL_CALL VclCanvasBitmap::convertFromIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor, + const uno::Reference< ::rendering::XColorSpace >& targetColorSpace ) +{ + if( dynamic_cast<VclCanvasBitmap*>(targetColorSpace.get()) ) + { + SolarMutexGuard aGuard; + + const std::size_t nLen( deviceColor.getLength() ); + const sal_Int32 nComponentsPerPixel(m_aComponentTags.getLength()); + ENSURE_ARG_OR_THROW2(nLen%nComponentsPerPixel==0, + "number of channels no multiple of pixel element count", + static_cast<rendering::XBitmapPalette*>(this), 01); + + uno::Sequence<double> aRes(nLen); + double* pOut( aRes.getArray() ); + + if( m_bPalette ) + { + OSL_ENSURE(m_nIndexIndex != -1, + "Invalid color channel indices"); + ENSURE_OR_THROW(m_pBmpAcc, + "Unable to get BitmapAccess"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + const BitmapColor aCol = m_pBmpAcc->GetPaletteColor( + sal::static_int_cast<sal_uInt16>(deviceColor[i+m_nIndexIndex])); + + // TODO(F3): Convert result to sRGB color space + const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 ); + *pOut++ = toDoubleColor(aCol.GetRed()); + *pOut++ = toDoubleColor(aCol.GetGreen()); + *pOut++ = toDoubleColor(aCol.GetBlue()); + *pOut++ = nAlpha; + } + } + else + { + OSL_ENSURE(m_nRedIndex != -1 && m_nGreenIndex != -1 && m_nBlueIndex != -1, + "Invalid color channel indices"); + + for( std::size_t i=0; i<nLen; i+=nComponentsPerPixel ) + { + // TODO(F3): Convert result to sRGB color space + const double nAlpha( m_nAlphaIndex != -1 ? 1.0 - deviceColor[i+m_nAlphaIndex] : 1.0 ); + *pOut++ = deviceColor[i+m_nRedIndex]; + *pOut++ = deviceColor[i+m_nGreenIndex]; + *pOut++ = deviceColor[i+m_nBlueIndex]; + *pOut++ = nAlpha; + } + } + + return aRes; + } + else + { + // TODO(P3): if we know anything about target + // colorspace, this can be greatly sped up + uno::Sequence<rendering::ARGBColor> aIntermediate( + convertIntegerToARGB(deviceColor)); + return targetColorSpace->convertFromARGB(aIntermediate); + } +} + +uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertToIntegerColorSpace( const uno::Sequence< ::sal_Int8 >& deviceColor, + const uno::Reference< ::rendering::XIntegerBitmapColorSpace >& targetColorSpace ) +{ + if( dynamic_cast<VclCanvasBitmap*>(targetColorSpace.get()) ) + { + // it's us, so simply pass-through the data + return deviceColor; + } + else + { + // TODO(P3): if we know anything about target + // colorspace, this can be greatly sped up + uno::Sequence<rendering::ARGBColor> aIntermediate( + convertIntegerToARGB(deviceColor)); + return targetColorSpace->convertIntegerFromARGB(aIntermediate); + } +} + +uno::Sequence<rendering::RGBColor> SAL_CALL VclCanvasBitmap::convertIntegerToRGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) +{ + SolarMutexGuard aGuard; + + const sal_uInt8* pIn( reinterpret_cast<const sal_uInt8*>(deviceColor.getConstArray()) ); + const std::size_t nLen( deviceColor.getLength() ); + const sal_Int32 nNumColors((nLen*8 + m_nBitsPerOutputPixel-1)/m_nBitsPerOutputPixel); + + uno::Sequence< rendering::RGBColor > aRes(nNumColors); + rendering::RGBColor* pOut( aRes.getArray() ); + + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + ENSURE_OR_THROW(pBmpAcc, + "Unable to get BitmapAccess"); + + if( m_aBmpEx.IsAlpha() ) + { + const sal_Int32 nBytesPerPixel((m_nBitsPerOutputPixel+7)/8); + for( std::size_t i=0; i<nLen; i+=nBytesPerPixel ) + { + // if palette, index is guaranteed to be 8 bit + const BitmapColor aCol = + m_bPalette ? + pBmpAcc->GetPaletteColor(*pIn) : + pBmpAcc->GetPixelFromData(pIn,0); + + // TODO(F3): Convert result to sRGB color space + *pOut++ = rendering::RGBColor(toDoubleColor(aCol.GetRed()), + toDoubleColor(aCol.GetGreen()), + toDoubleColor(aCol.GetBlue())); + // skips alpha + pIn += nBytesPerPixel; + } + } + else + { + for( sal_Int32 i=0; i<nNumColors; ++i ) + { + const BitmapColor aCol = + m_bPalette ? + pBmpAcc->GetPaletteColor( pBmpAcc->GetPixelFromData( pIn, i ).GetIndex()) : + pBmpAcc->GetPixelFromData(pIn, i); + + // TODO(F3): Convert result to sRGB color space + *pOut++ = rendering::RGBColor(toDoubleColor(aCol.GetRed()), + toDoubleColor(aCol.GetGreen()), + toDoubleColor(aCol.GetBlue())); + } + } + + return aRes; +} + +uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertIntegerToARGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) +{ + SolarMutexGuard aGuard; + + const sal_uInt8* pIn( reinterpret_cast<const sal_uInt8*>(deviceColor.getConstArray()) ); + const std::size_t nLen( deviceColor.getLength() ); + const sal_Int32 nNumColors((nLen*8 + m_nBitsPerOutputPixel-1)/m_nBitsPerOutputPixel); + + uno::Sequence< rendering::ARGBColor > aRes(nNumColors); + rendering::ARGBColor* pOut( aRes.getArray() ); + + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + ENSURE_OR_THROW(pBmpAcc, + "Unable to get BitmapAccess"); + + if( m_aBmpEx.IsAlpha() ) + { + const tools::Long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 ); + const sal_Int32 nBytesPerPixel((m_nBitsPerOutputPixel+7)/8); + const sal_uInt8 nAlphaFactor( m_aBmpEx.IsAlpha() ? 1 : 255 ); + for( std::size_t i=0; i<nLen; i+=nBytesPerPixel ) + { + // if palette, index is guaranteed to be 8 bit + const BitmapColor aCol = + m_bPalette ? + pBmpAcc->GetPaletteColor(*pIn) : + pBmpAcc->GetPixelFromData(pIn,0); + + // TODO(F3): Convert result to sRGB color space + *pOut++ = rendering::ARGBColor(1.0 - toDoubleColor(nAlphaFactor*pIn[nNonAlphaBytes]), + toDoubleColor(aCol.GetRed()), + toDoubleColor(aCol.GetGreen()), + toDoubleColor(aCol.GetBlue())); + pIn += nBytesPerPixel; + } + } + else + { + for( sal_Int32 i=0; i<nNumColors; ++i ) + { + const BitmapColor aCol = + m_bPalette ? + pBmpAcc->GetPaletteColor( pBmpAcc->GetPixelFromData( pIn, i ).GetIndex() ) : + pBmpAcc->GetPixelFromData(pIn, i); + + // TODO(F3): Convert result to sRGB color space + *pOut++ = rendering::ARGBColor(1.0, + toDoubleColor(aCol.GetRed()), + toDoubleColor(aCol.GetGreen()), + toDoubleColor(aCol.GetBlue())); + } + } + + return aRes; +} + +uno::Sequence<rendering::ARGBColor> SAL_CALL VclCanvasBitmap::convertIntegerToPARGB( const uno::Sequence< ::sal_Int8 >& deviceColor ) +{ + SolarMutexGuard aGuard; + + const sal_uInt8* pIn( reinterpret_cast<const sal_uInt8*>(deviceColor.getConstArray()) ); + const std::size_t nLen( deviceColor.getLength() ); + const sal_Int32 nNumColors((nLen*8 + m_nBitsPerOutputPixel-1)/m_nBitsPerOutputPixel); + + uno::Sequence< rendering::ARGBColor > aRes(nNumColors); + rendering::ARGBColor* pOut( aRes.getArray() ); + + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + ENSURE_OR_THROW(pBmpAcc, + "Unable to get BitmapAccess"); + + if( m_aBmpEx.IsAlpha() ) + { + const tools::Long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 ); + const sal_Int32 nBytesPerPixel((m_nBitsPerOutputPixel+7)/8); + const sal_uInt8 nAlphaFactor( m_aBmpEx.IsAlpha() ? 1 : 255 ); + for( std::size_t i=0; i<nLen; i+=nBytesPerPixel ) + { + // if palette, index is guaranteed to be 8 bit + const BitmapColor aCol = + m_bPalette ? + pBmpAcc->GetPaletteColor(*pIn) : + pBmpAcc->GetPixelFromData(pIn,0); + + // TODO(F3): Convert result to sRGB color space + const double nAlpha( 1.0 - toDoubleColor(nAlphaFactor*pIn[nNonAlphaBytes]) ); + *pOut++ = rendering::ARGBColor(nAlpha, + nAlpha*toDoubleColor(aCol.GetRed()), + nAlpha*toDoubleColor(aCol.GetGreen()), + nAlpha*toDoubleColor(aCol.GetBlue())); + pIn += nBytesPerPixel; + } + } + else + { + for( sal_Int32 i=0; i<nNumColors; ++i ) + { + const BitmapColor aCol = + m_bPalette ? + pBmpAcc->GetPaletteColor( pBmpAcc->GetPixelFromData( pIn, i ).GetIndex() ) : + pBmpAcc->GetPixelFromData(pIn, i); + + // TODO(F3): Convert result to sRGB color space + *pOut++ = rendering::ARGBColor(1.0, + toDoubleColor(aCol.GetRed()), + toDoubleColor(aCol.GetGreen()), + toDoubleColor(aCol.GetBlue())); + } + } + + return aRes; +} + +uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertIntegerFromRGB( const uno::Sequence<rendering::RGBColor>& rgbColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( rgbColor.getLength() ); + const sal_Int32 nNumBytes((nLen*m_nBitsPerOutputPixel+7)/8); + + uno::Sequence< sal_Int8 > aRes(nNumBytes); + sal_uInt8* pColors=reinterpret_cast<sal_uInt8*>(aRes.getArray()); + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + + if( m_aBmpEx.IsAlpha() ) + { + const tools::Long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 ); + for( std::size_t i=0; i<nLen; ++i ) + { + const BitmapColor aCol(toByteColor(rgbColor[i].Red), + toByteColor(rgbColor[i].Green), + toByteColor(rgbColor[i].Blue)); + const BitmapColor aCol2 = + m_bPalette ? + BitmapColor( + sal::static_int_cast<sal_uInt8>(pBmpAcc->GetBestPaletteIndex( aCol ))) : + aCol; + + pBmpAcc->SetPixelOnData(pColors,i,aCol2); + pColors += nNonAlphaBytes; + *pColors++ = sal_uInt8(255); + } + } + else + { + for( std::size_t i=0; i<nLen; ++i ) + { + const BitmapColor aCol(toByteColor(rgbColor[i].Red), + toByteColor(rgbColor[i].Green), + toByteColor(rgbColor[i].Blue)); + const BitmapColor aCol2 = + m_bPalette ? + BitmapColor( + sal::static_int_cast<sal_uInt8>(pBmpAcc->GetBestPaletteIndex( aCol ))) : + aCol; + + pBmpAcc->SetPixelOnData(pColors,i,aCol2); + } + } + + return aRes; +} + +uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertIntegerFromARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( rgbColor.getLength() ); + const sal_Int32 nNumBytes((nLen*m_nBitsPerOutputPixel+7)/8); + + uno::Sequence< sal_Int8 > aRes(nNumBytes); + sal_uInt8* pColors=reinterpret_cast<sal_uInt8*>(aRes.getArray()); + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + + if( m_aBmpEx.IsAlpha() ) + { + const tools::Long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 ); + for( std::size_t i=0; i<nLen; ++i ) + { + const BitmapColor aCol(toByteColor(rgbColor[i].Red), + toByteColor(rgbColor[i].Green), + toByteColor(rgbColor[i].Blue)); + const BitmapColor aCol2 = + m_bPalette ? + BitmapColor( + sal::static_int_cast<sal_uInt8>(pBmpAcc->GetBestPaletteIndex( aCol ))) : + aCol; + + pBmpAcc->SetPixelOnData(pColors,i,aCol2); + pColors += nNonAlphaBytes; + *pColors++ = 255 - toByteColor(rgbColor[i].Alpha); + } + } + else + { + for( std::size_t i=0; i<nLen; ++i ) + { + const BitmapColor aCol(toByteColor(rgbColor[i].Red), + toByteColor(rgbColor[i].Green), + toByteColor(rgbColor[i].Blue)); + const BitmapColor aCol2 = + m_bPalette ? + BitmapColor( + sal::static_int_cast<sal_uInt8>(pBmpAcc->GetBestPaletteIndex( aCol ))) : + aCol; + + pBmpAcc->SetPixelOnData(pColors,i,aCol2); + } + } + + return aRes; +} + +uno::Sequence< ::sal_Int8 > SAL_CALL VclCanvasBitmap::convertIntegerFromPARGB( const uno::Sequence<rendering::ARGBColor>& rgbColor ) +{ + SolarMutexGuard aGuard; + + const std::size_t nLen( rgbColor.getLength() ); + const sal_Int32 nNumBytes((nLen*m_nBitsPerOutputPixel+7)/8); + + uno::Sequence< sal_Int8 > aRes(nNumBytes); + sal_uInt8* pColors=reinterpret_cast<sal_uInt8*>(aRes.getArray()); + Bitmap::ScopedReadAccess& pBmpAcc = getBitmapReadAccess(); + + if( m_aBmpEx.IsAlpha() ) + { + const tools::Long nNonAlphaBytes( (m_nBitsPerInputPixel+7)/8 ); + for( std::size_t i=0; i<nLen; ++i ) + { + const double nAlpha( rgbColor[i].Alpha ); + const BitmapColor aCol(toByteColor(rgbColor[i].Red / nAlpha), + toByteColor(rgbColor[i].Green / nAlpha), + toByteColor(rgbColor[i].Blue / nAlpha)); + const BitmapColor aCol2 = + m_bPalette ? + BitmapColor( + sal::static_int_cast<sal_uInt8>(pBmpAcc->GetBestPaletteIndex( aCol ))) : + aCol; + + pBmpAcc->SetPixelOnData(pColors,i,aCol2); + pColors += nNonAlphaBytes; + *pColors++ = 255 - toByteColor(nAlpha); + } + } + else + { + for( std::size_t i=0; i<nLen; ++i ) + { + const BitmapColor aCol(toByteColor(rgbColor[i].Red), + toByteColor(rgbColor[i].Green), + toByteColor(rgbColor[i].Blue)); + const BitmapColor aCol2 = + m_bPalette ? + BitmapColor( + sal::static_int_cast<sal_uInt8>(pBmpAcc->GetBestPaletteIndex( aCol ))) : + aCol; + + pBmpAcc->SetPixelOnData(pColors,i,aCol2); + } + } + + return aRes; +} + + +/* vim:set shiftwidth=4 softtabstop=4 expandtab: */ |