9e087d4a30
but leave the tweak commented out, since it generates false positives Change-Id: Iaf3f92414d2618f8780561f98765e33e282afe0c Reviewed-on: https://gerrit.libreoffice.org/82121 Tested-by: Jenkins Reviewed-by: Noel Grandin <noel.grandin@collabora.co.uk>
1147 lines
40 KiB
C++
1147 lines
40 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*
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* This file incorporates work covered by the following license notice:
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*
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* Licensed to the Apache Software Foundation (ASF) under one or more
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* contributor license agreements. See the NOTICE file distributed
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* with this work for additional information regarding copyright
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* ownership. The ASF licenses this file to you under the Apache
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* License, Version 2.0 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.apache.org/licenses/LICENSE-2.0 .
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*/
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#include <tools/poly.hxx>
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#include <tools/helpers.hxx>
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#include <vcl/bitmap.hxx>
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#include <vcl/bitmapaccess.hxx>
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#include <vcl/alpha.hxx>
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#include <bitmapwriteaccess.hxx>
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#include <salbmp.hxx>
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#include <svdata.hxx>
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#include <salinst.hxx>
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#include <algorithm>
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#include <memory>
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bool Bitmap::Erase(const Color& rFillColor)
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{
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if (IsEmpty())
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return true;
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BitmapScopedWriteAccess pWriteAcc(*this);
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bool bRet = false;
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if (pWriteAcc)
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{
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const ScanlineFormat nFormat = pWriteAcc->GetScanlineFormat();
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sal_uInt8 cIndex = 0;
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bool bFast = false;
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switch (nFormat)
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{
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case ScanlineFormat::N1BitMsbPal:
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case ScanlineFormat::N1BitLsbPal:
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{
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cIndex = static_cast<sal_uInt8>(pWriteAcc->GetBestPaletteIndex(rFillColor));
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cIndex = (cIndex ? 255 : 0);
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bFast = true;
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}
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break;
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case ScanlineFormat::N4BitMsnPal:
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case ScanlineFormat::N4BitLsnPal:
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{
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cIndex = static_cast<sal_uInt8>(pWriteAcc->GetBestPaletteIndex(rFillColor));
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cIndex = cIndex | (cIndex << 4);
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bFast = true;
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}
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break;
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case ScanlineFormat::N8BitPal:
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{
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cIndex = static_cast<sal_uInt8>(pWriteAcc->GetBestPaletteIndex(rFillColor));
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bFast = true;
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}
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break;
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case ScanlineFormat::N24BitTcBgr:
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case ScanlineFormat::N24BitTcRgb:
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{
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if (rFillColor.GetRed() == rFillColor.GetGreen()
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&& rFillColor.GetRed() == rFillColor.GetBlue())
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{
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cIndex = rFillColor.GetRed();
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bFast = true;
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}
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else
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{
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bFast = false;
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}
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}
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break;
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default:
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bFast = false;
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break;
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}
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if (bFast)
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{
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const sal_uLong nBufSize = pWriteAcc->GetScanlineSize() * pWriteAcc->Height();
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memset(pWriteAcc->GetBuffer(), cIndex, nBufSize);
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}
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else
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{
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const tools::Rectangle aRect(Point(), Size(pWriteAcc->Width(), pWriteAcc->Height()));
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pWriteAcc->SetFillColor(rFillColor);
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pWriteAcc->FillRect(aRect);
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}
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bRet = true;
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}
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return bRet;
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}
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bool Bitmap::Invert()
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{
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BitmapScopedWriteAccess pAcc(*this);
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bool bRet = false;
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if (pAcc)
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{
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if (pAcc->HasPalette())
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{
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BitmapPalette aBmpPal(pAcc->GetPalette());
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const sal_uInt16 nCount = aBmpPal.GetEntryCount();
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for (sal_uInt16 i = 0; i < nCount; i++)
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{
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aBmpPal[i].Invert();
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}
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pAcc->SetPalette(aBmpPal);
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}
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else
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{
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const long nWidth = pAcc->Width();
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const long nHeight = pAcc->Height();
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for (long nY = 0; nY < nHeight; nY++)
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{
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Scanline pScanline = pAcc->GetScanline(nY);
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for (long nX = 0; nX < nWidth; nX++)
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{
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BitmapColor aBmpColor = pAcc->GetPixelFromData(pScanline, nX);
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aBmpColor.Invert();
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pAcc->SetPixelOnData(pScanline, nX, aBmpColor);
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}
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}
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}
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mxSalBmp->InvalidateChecksum();
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pAcc.reset();
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bRet = true;
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}
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return bRet;
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}
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bool Bitmap::Mirror(BmpMirrorFlags nMirrorFlags)
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{
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bool bHorz(nMirrorFlags & BmpMirrorFlags::Horizontal);
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bool bVert(nMirrorFlags & BmpMirrorFlags::Vertical);
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bool bRet = false;
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if (bHorz && !bVert)
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{
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BitmapScopedWriteAccess pAcc(*this);
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if (pAcc)
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{
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const long nWidth = pAcc->Width();
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const long nHeight = pAcc->Height();
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const long nWidth1 = nWidth - 1;
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const long nWidth_2 = nWidth >> 1;
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for (long nY = 0; nY < nHeight; nY++)
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{
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Scanline pScanline = pAcc->GetScanline(nY);
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for (long nX = 0, nOther = nWidth1; nX < nWidth_2; nX++, nOther--)
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{
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const BitmapColor aTemp(pAcc->GetPixelFromData(pScanline, nX));
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pAcc->SetPixelOnData(pScanline, nX, pAcc->GetPixelFromData(pScanline, nOther));
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pAcc->SetPixelOnData(pScanline, nOther, aTemp);
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}
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}
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pAcc.reset();
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bRet = true;
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}
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}
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else if (bVert && !bHorz)
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{
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BitmapScopedWriteAccess pAcc(*this);
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if (pAcc)
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{
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const long nScanSize = pAcc->GetScanlineSize();
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std::unique_ptr<sal_uInt8[]> pBuffer(new sal_uInt8[nScanSize]);
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const long nHeight = pAcc->Height();
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const long nHeight1 = nHeight - 1;
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const long nHeight_2 = nHeight >> 1;
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for (long nY = 0, nOther = nHeight1; nY < nHeight_2; nY++, nOther--)
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{
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memcpy(pBuffer.get(), pAcc->GetScanline(nY), nScanSize);
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memcpy(pAcc->GetScanline(nY), pAcc->GetScanline(nOther), nScanSize);
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memcpy(pAcc->GetScanline(nOther), pBuffer.get(), nScanSize);
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}
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pAcc.reset();
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bRet = true;
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}
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}
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else if (bHorz && bVert)
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{
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BitmapScopedWriteAccess pAcc(*this);
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if (pAcc)
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{
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const long nWidth = pAcc->Width();
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const long nWidth1 = nWidth - 1;
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const long nHeight = pAcc->Height();
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long nHeight_2 = nHeight >> 1;
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for (long nY = 0, nOtherY = nHeight - 1; nY < nHeight_2; nY++, nOtherY--)
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{
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Scanline pScanline = pAcc->GetScanline(nY);
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Scanline pScanlineOther = pAcc->GetScanline(nOtherY);
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for (long nX = 0, nOtherX = nWidth1; nX < nWidth; nX++, nOtherX--)
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{
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const BitmapColor aTemp(pAcc->GetPixelFromData(pScanline, nX));
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pAcc->SetPixelOnData(pScanline, nX,
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pAcc->GetPixelFromData(pScanlineOther, nOtherX));
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pAcc->SetPixelOnData(pScanlineOther, nOtherX, aTemp);
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}
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}
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// if necessary, also mirror the middle line horizontally
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if (nHeight & 1)
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{
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Scanline pScanline = pAcc->GetScanline(nHeight_2);
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for (long nX = 0, nOtherX = nWidth1, nWidth_2 = nWidth >> 1; nX < nWidth_2;
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nX++, nOtherX--)
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{
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const BitmapColor aTemp(pAcc->GetPixelFromData(pScanline, nX));
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pAcc->SetPixelOnData(pScanline, nX, pAcc->GetPixelFromData(pScanline, nOtherX));
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pAcc->SetPixelOnData(pScanline, nOtherX, aTemp);
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}
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}
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pAcc.reset();
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bRet = true;
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}
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}
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else
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bRet = true;
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return bRet;
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}
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bool Bitmap::Rotate(long nAngle10, const Color& rFillColor)
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{
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bool bRet = false;
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nAngle10 %= 3600;
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nAngle10 = (nAngle10 < 0) ? (3599L + nAngle10) : nAngle10;
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if (!nAngle10)
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bRet = true;
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else if (nAngle10 == 1800)
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bRet = Mirror(BmpMirrorFlags::Horizontal | BmpMirrorFlags::Vertical);
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else
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{
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ScopedReadAccess pReadAcc(*this);
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Bitmap aRotatedBmp;
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if (pReadAcc)
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{
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const Size aSizePix(GetSizePixel());
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if (nAngle10 == 900 || nAngle10 == 2700)
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{
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const Size aNewSizePix(aSizePix.Height(), aSizePix.Width());
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Bitmap aNewBmp(aNewSizePix, GetBitCount(), &pReadAcc->GetPalette());
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BitmapScopedWriteAccess pWriteAcc(aNewBmp);
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if (pWriteAcc)
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{
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const long nWidth = aSizePix.Width();
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const long nWidth1 = nWidth - 1;
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const long nHeight = aSizePix.Height();
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const long nHeight1 = nHeight - 1;
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const long nNewWidth = aNewSizePix.Width();
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const long nNewHeight = aNewSizePix.Height();
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if (nAngle10 == 900)
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{
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for (long nY = 0, nOtherX = nWidth1; nY < nNewHeight; nY++, nOtherX--)
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{
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Scanline pScanline = pWriteAcc->GetScanline(nY);
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for (long nX = 0, nOtherY = 0; nX < nNewWidth; nX++)
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{
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pWriteAcc->SetPixelOnData(pScanline, nX,
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pReadAcc->GetPixel(nOtherY++, nOtherX));
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}
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}
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}
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else if (nAngle10 == 2700)
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{
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for (long nY = 0, nOtherX = 0; nY < nNewHeight; nY++, nOtherX++)
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{
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Scanline pScanline = pWriteAcc->GetScanline(nY);
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for (long nX = 0, nOtherY = nHeight1; nX < nNewWidth; nX++)
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{
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pWriteAcc->SetPixelOnData(pScanline, nX,
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pReadAcc->GetPixel(nOtherY--, nOtherX));
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}
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}
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}
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pWriteAcc.reset();
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}
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aRotatedBmp = aNewBmp;
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}
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else
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{
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Point aTmpPoint;
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tools::Rectangle aTmpRectangle(aTmpPoint, aSizePix);
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tools::Polygon aPoly(aTmpRectangle);
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aPoly.Rotate(aTmpPoint, static_cast<sal_uInt16>(nAngle10));
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tools::Rectangle aNewBound(aPoly.GetBoundRect());
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const Size aNewSizePix(aNewBound.GetSize());
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Bitmap aNewBmp(aNewSizePix, GetBitCount(), &pReadAcc->GetPalette());
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BitmapScopedWriteAccess pWriteAcc(aNewBmp);
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if (pWriteAcc)
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{
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const BitmapColor aFillColor(pWriteAcc->GetBestMatchingColor(rFillColor));
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const double fCosAngle = cos(nAngle10 * F_PI1800);
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const double fSinAngle = sin(nAngle10 * F_PI1800);
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const double fXMin = aNewBound.Left();
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const double fYMin = aNewBound.Top();
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const long nWidth = aSizePix.Width();
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const long nHeight = aSizePix.Height();
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const long nNewWidth = aNewSizePix.Width();
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const long nNewHeight = aNewSizePix.Height();
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long nX;
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long nY;
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long nRotX;
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long nRotY;
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std::unique_ptr<long[]> pCosX(new long[nNewWidth]);
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std::unique_ptr<long[]> pSinX(new long[nNewWidth]);
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std::unique_ptr<long[]> pCosY(new long[nNewHeight]);
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std::unique_ptr<long[]> pSinY(new long[nNewHeight]);
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for (nX = 0; nX < nNewWidth; nX++)
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{
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const double fTmp = (fXMin + nX) * 64.;
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pCosX[nX] = FRound(fCosAngle * fTmp);
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pSinX[nX] = FRound(fSinAngle * fTmp);
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}
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for (nY = 0; nY < nNewHeight; nY++)
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{
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const double fTmp = (fYMin + nY) * 64.;
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pCosY[nY] = FRound(fCosAngle * fTmp);
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pSinY[nY] = FRound(fSinAngle * fTmp);
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}
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for (nY = 0; nY < nNewHeight; nY++)
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{
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long nSinY = pSinY[nY];
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long nCosY = pCosY[nY];
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Scanline pScanline = pWriteAcc->GetScanline(nY);
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for (nX = 0; nX < nNewWidth; nX++)
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{
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nRotX = (pCosX[nX] - nSinY) >> 6;
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nRotY = (pSinX[nX] + nCosY) >> 6;
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if ((nRotX > -1) && (nRotX < nWidth) && (nRotY > -1)
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&& (nRotY < nHeight))
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{
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pWriteAcc->SetPixelOnData(pScanline, nX,
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pReadAcc->GetPixel(nRotY, nRotX));
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}
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else
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{
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pWriteAcc->SetPixelOnData(pScanline, nX, aFillColor);
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}
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}
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}
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pWriteAcc.reset();
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}
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aRotatedBmp = aNewBmp;
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}
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pReadAcc.reset();
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}
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bRet = !!aRotatedBmp;
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if (bRet)
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ReassignWithSize(aRotatedBmp);
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}
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return bRet;
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};
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|
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Bitmap Bitmap::CreateMask(const Color& rTransColor, sal_uInt8 nTol) const
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|
{
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ScopedReadAccess pReadAcc(const_cast<Bitmap&>(*this));
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if (!nTol && pReadAcc
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&& (pReadAcc->GetScanlineFormat() == ScanlineFormat::N1BitLsbPal
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|| pReadAcc->GetScanlineFormat() == ScanlineFormat::N1BitMsbPal)
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&& pReadAcc->GetBestMatchingColor(COL_WHITE) == pReadAcc->GetBestMatchingColor(rTransColor))
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|
{
|
|
// if we're a 1 bit pixel already, and the transcolor matches the color that would replace it
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|
// already, then just return a copy
|
|
return *this;
|
|
}
|
|
|
|
Bitmap aNewBmp(GetSizePixel(), 1);
|
|
BitmapScopedWriteAccess pWriteAcc(aNewBmp);
|
|
bool bRet = false;
|
|
|
|
if (pWriteAcc && pReadAcc)
|
|
{
|
|
const long nWidth = pReadAcc->Width();
|
|
const long nHeight = pReadAcc->Height();
|
|
const BitmapColor aBlack(pWriteAcc->GetBestMatchingColor(COL_BLACK));
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|
const BitmapColor aWhite(pWriteAcc->GetBestMatchingColor(COL_WHITE));
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|
|
|
if (!nTol)
|
|
{
|
|
const BitmapColor aTest(pReadAcc->GetBestMatchingColor(rTransColor));
|
|
|
|
if (pReadAcc->GetScanlineFormat() == ScanlineFormat::N4BitMsnPal
|
|
|| pReadAcc->GetScanlineFormat() == ScanlineFormat::N4BitLsnPal)
|
|
{
|
|
// optimized for 4Bit-MSN/LSN source palette
|
|
const sal_uInt8 cTest = aTest.GetIndex();
|
|
const long nShiftInit
|
|
= ((pReadAcc->GetScanlineFormat() == ScanlineFormat::N4BitMsnPal) ? 4 : 0);
|
|
|
|
if (pWriteAcc->GetScanlineFormat() == ScanlineFormat::N1BitMsbPal
|
|
&& aWhite.GetIndex() == 1)
|
|
{
|
|
// optimized for 1Bit-MSB destination palette
|
|
for (long nY = 0; nY < nHeight; ++nY)
|
|
{
|
|
Scanline pSrc = pReadAcc->GetScanline(nY);
|
|
Scanline pDst = pWriteAcc->GetScanline(nY);
|
|
for (long nX = 0, nShift = nShiftInit; nX < nWidth; nX++, nShift ^= 4)
|
|
{
|
|
if (cTest == ((pSrc[nX >> 1] >> nShift) & 0x0f))
|
|
pDst[nX >> 3] |= 1 << (7 - (nX & 7));
|
|
else
|
|
pDst[nX >> 3] &= ~(1 << (7 - (nX & 7)));
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (long nY = 0; nY < nHeight; ++nY)
|
|
{
|
|
Scanline pSrc = pReadAcc->GetScanline(nY);
|
|
Scanline pDst = pWriteAcc->GetScanline(nY);
|
|
for (long nX = 0, nShift = nShiftInit; nX < nWidth; nX++, nShift ^= 4)
|
|
{
|
|
if (cTest == ((pSrc[nX >> 1] >> nShift) & 0x0f))
|
|
pWriteAcc->SetPixelOnData(pDst, nX, aWhite);
|
|
else
|
|
pWriteAcc->SetPixelOnData(pDst, nX, aBlack);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (pReadAcc->GetScanlineFormat() == ScanlineFormat::N8BitPal)
|
|
{
|
|
// optimized for 8Bit source palette
|
|
const sal_uInt8 cTest = aTest.GetIndex();
|
|
|
|
if (pWriteAcc->GetScanlineFormat() == ScanlineFormat::N1BitMsbPal
|
|
&& aWhite.GetIndex() == 1)
|
|
{
|
|
// optimized for 1Bit-MSB destination palette
|
|
for (long nY = 0; nY < nHeight; ++nY)
|
|
{
|
|
Scanline pSrc = pReadAcc->GetScanline(nY);
|
|
Scanline pDst = pWriteAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; ++nX)
|
|
{
|
|
if (cTest == pSrc[nX])
|
|
pDst[nX >> 3] |= 1 << (7 - (nX & 7));
|
|
else
|
|
pDst[nX >> 3] &= ~(1 << (7 - (nX & 7)));
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (long nY = 0; nY < nHeight; ++nY)
|
|
{
|
|
Scanline pSrc = pReadAcc->GetScanline(nY);
|
|
Scanline pDst = pWriteAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; ++nX)
|
|
{
|
|
if (cTest == pSrc[nX])
|
|
pWriteAcc->SetPixelOnData(pDst, nX, aWhite);
|
|
else
|
|
pWriteAcc->SetPixelOnData(pDst, nX, aBlack);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else if (pWriteAcc->GetScanlineFormat() == pReadAcc->GetScanlineFormat()
|
|
&& aWhite.GetIndex() == 1
|
|
&& (pReadAcc->GetScanlineFormat() == ScanlineFormat::N1BitLsbPal
|
|
|| pReadAcc->GetScanlineFormat() == ScanlineFormat::N1BitMsbPal))
|
|
{
|
|
for (long nY = 0; nY < nHeight; ++nY)
|
|
{
|
|
Scanline pSrc = pReadAcc->GetScanline(nY);
|
|
Scanline pDst = pWriteAcc->GetScanline(nY);
|
|
assert(pWriteAcc->GetScanlineSize() == pReadAcc->GetScanlineSize());
|
|
const long nScanlineSize = pWriteAcc->GetScanlineSize();
|
|
for (long nX = 0; nX < nScanlineSize; ++nX)
|
|
pDst[nX] = ~pSrc[nX];
|
|
}
|
|
}
|
|
else
|
|
{
|
|
// not optimized
|
|
for (long nY = 0; nY < nHeight; ++nY)
|
|
{
|
|
Scanline pScanline = pWriteAcc->GetScanline(nY);
|
|
Scanline pScanlineRead = pReadAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; ++nX)
|
|
{
|
|
if (aTest == pReadAcc->GetPixelFromData(pScanlineRead, nX))
|
|
pWriteAcc->SetPixelOnData(pScanline, nX, aWhite);
|
|
else
|
|
pWriteAcc->SetPixelOnData(pScanline, nX, aBlack);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BitmapColor aCol;
|
|
long nR, nG, nB;
|
|
const long nMinR = MinMax<long>(rTransColor.GetRed() - nTol, 0, 255);
|
|
const long nMaxR = MinMax<long>(rTransColor.GetRed() + nTol, 0, 255);
|
|
const long nMinG = MinMax<long>(rTransColor.GetGreen() - nTol, 0, 255);
|
|
const long nMaxG = MinMax<long>(rTransColor.GetGreen() + nTol, 0, 255);
|
|
const long nMinB = MinMax<long>(rTransColor.GetBlue() - nTol, 0, 255);
|
|
const long nMaxB = MinMax<long>(rTransColor.GetBlue() + nTol, 0, 255);
|
|
|
|
if (pReadAcc->HasPalette())
|
|
{
|
|
for (long nY = 0; nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pWriteAcc->GetScanline(nY);
|
|
Scanline pScanlineRead = pReadAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; nX++)
|
|
{
|
|
aCol = pReadAcc->GetPaletteColor(
|
|
pReadAcc->GetIndexFromData(pScanlineRead, nX));
|
|
nR = aCol.GetRed();
|
|
nG = aCol.GetGreen();
|
|
nB = aCol.GetBlue();
|
|
|
|
if (nMinR <= nR && nMaxR >= nR && nMinG <= nG && nMaxG >= nG && nMinB <= nB
|
|
&& nMaxB >= nB)
|
|
{
|
|
pWriteAcc->SetPixelOnData(pScanline, nX, aWhite);
|
|
}
|
|
else
|
|
{
|
|
pWriteAcc->SetPixelOnData(pScanline, nX, aBlack);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (long nY = 0; nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pWriteAcc->GetScanline(nY);
|
|
Scanline pScanlineRead = pReadAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; nX++)
|
|
{
|
|
aCol = pReadAcc->GetPixelFromData(pScanlineRead, nX);
|
|
nR = aCol.GetRed();
|
|
nG = aCol.GetGreen();
|
|
nB = aCol.GetBlue();
|
|
|
|
if (nMinR <= nR && nMaxR >= nR && nMinG <= nG && nMaxG >= nG && nMinB <= nB
|
|
&& nMaxB >= nB)
|
|
{
|
|
pWriteAcc->SetPixelOnData(pScanline, nX, aWhite);
|
|
}
|
|
else
|
|
{
|
|
pWriteAcc->SetPixelOnData(pScanline, nX, aBlack);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
bRet = true;
|
|
}
|
|
|
|
pWriteAcc.reset();
|
|
pReadAcc.reset();
|
|
|
|
if (bRet)
|
|
{
|
|
aNewBmp.maPrefSize = maPrefSize;
|
|
aNewBmp.maPrefMapMode = maPrefMapMode;
|
|
}
|
|
else
|
|
aNewBmp = Bitmap();
|
|
|
|
return aNewBmp;
|
|
}
|
|
|
|
vcl::Region Bitmap::CreateRegion(const Color& rColor, const tools::Rectangle& rRect) const
|
|
{
|
|
vcl::Region aRegion;
|
|
tools::Rectangle aRect(rRect);
|
|
ScopedReadAccess pReadAcc(const_cast<Bitmap&>(*this));
|
|
|
|
aRect.Intersection(tools::Rectangle(Point(), GetSizePixel()));
|
|
aRect.Justify();
|
|
|
|
if (pReadAcc)
|
|
{
|
|
const long nLeft = aRect.Left();
|
|
const long nTop = aRect.Top();
|
|
const long nRight = aRect.Right();
|
|
const long nBottom = aRect.Bottom();
|
|
const BitmapColor aMatch(pReadAcc->GetBestMatchingColor(rColor));
|
|
|
|
std::vector<long> aLine;
|
|
long nYStart(nTop);
|
|
long nY(nTop);
|
|
|
|
for (; nY <= nBottom; nY++)
|
|
{
|
|
std::vector<long> aNewLine;
|
|
long nX(nLeft);
|
|
Scanline pScanlineRead = pReadAcc->GetScanline(nY);
|
|
|
|
for (; nX <= nRight;)
|
|
{
|
|
while ((nX <= nRight) && (aMatch != pReadAcc->GetPixelFromData(pScanlineRead, nX)))
|
|
nX++;
|
|
|
|
if (nX <= nRight)
|
|
{
|
|
aNewLine.push_back(nX);
|
|
|
|
while ((nX <= nRight)
|
|
&& (aMatch == pReadAcc->GetPixelFromData(pScanlineRead, nX)))
|
|
{
|
|
nX++;
|
|
}
|
|
|
|
aNewLine.push_back(nX - 1);
|
|
}
|
|
}
|
|
|
|
if (aNewLine != aLine)
|
|
{
|
|
// need to write aLine, it's different from the next line
|
|
if (!aLine.empty())
|
|
{
|
|
tools::Rectangle aSubRect;
|
|
|
|
// enter y values and proceed ystart
|
|
aSubRect.SetTop(nYStart);
|
|
aSubRect.SetBottom(nY ? nY - 1 : 0);
|
|
|
|
for (size_t a(0); a < aLine.size();)
|
|
{
|
|
aSubRect.SetLeft(aLine[a++]);
|
|
aSubRect.SetRight(aLine[a++]);
|
|
aRegion.Union(aSubRect);
|
|
}
|
|
}
|
|
|
|
// copy line as new line
|
|
aLine = aNewLine;
|
|
nYStart = nY;
|
|
}
|
|
}
|
|
|
|
// write last line if used
|
|
if (!aLine.empty())
|
|
{
|
|
tools::Rectangle aSubRect;
|
|
|
|
// enter y values
|
|
aSubRect.SetTop(nYStart);
|
|
aSubRect.SetBottom(nY ? nY - 1 : 0);
|
|
|
|
for (size_t a(0); a < aLine.size();)
|
|
{
|
|
aSubRect.SetLeft(aLine[a++]);
|
|
aSubRect.SetRight(aLine[a++]);
|
|
aRegion.Union(aSubRect);
|
|
}
|
|
}
|
|
|
|
pReadAcc.reset();
|
|
}
|
|
else
|
|
{
|
|
aRegion = aRect;
|
|
}
|
|
|
|
return aRegion;
|
|
}
|
|
|
|
bool Bitmap::Replace(const Bitmap& rMask, const Color& rReplaceColor)
|
|
{
|
|
ScopedReadAccess pMaskAcc(const_cast<Bitmap&>(rMask));
|
|
BitmapScopedWriteAccess pAcc(*this);
|
|
bool bRet = false;
|
|
|
|
if (pMaskAcc && pAcc)
|
|
{
|
|
const long nWidth = std::min(pMaskAcc->Width(), pAcc->Width());
|
|
const long nHeight = std::min(pMaskAcc->Height(), pAcc->Height());
|
|
const BitmapColor aMaskWhite(pMaskAcc->GetBestMatchingColor(COL_WHITE));
|
|
BitmapColor aReplace;
|
|
|
|
if (pAcc->HasPalette())
|
|
{
|
|
const sal_uInt16 nActColors = pAcc->GetPaletteEntryCount();
|
|
const sal_uInt16 nMaxColors = 1 << pAcc->GetBitCount();
|
|
|
|
// default to the nearest color
|
|
aReplace = pAcc->GetBestMatchingColor(rReplaceColor);
|
|
|
|
// for paletted images without a matching palette entry
|
|
// look for an unused palette entry (NOTE: expensive!)
|
|
if (pAcc->GetPaletteColor(aReplace.GetIndex()) != BitmapColor(rReplaceColor))
|
|
{
|
|
// if the palette has empty entries use the last one
|
|
if (nActColors < nMaxColors)
|
|
{
|
|
pAcc->SetPaletteEntryCount(nActColors + 1);
|
|
pAcc->SetPaletteColor(nActColors, rReplaceColor);
|
|
aReplace = BitmapColor(static_cast<sal_uInt8>(nActColors));
|
|
}
|
|
else
|
|
{
|
|
std::unique_ptr<bool[]> pFlags(new bool[nMaxColors]);
|
|
|
|
// Set all entries to false
|
|
std::fill(pFlags.get(), pFlags.get() + nMaxColors, false);
|
|
|
|
for (long nY = 0; nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; nX++)
|
|
pFlags[pAcc->GetIndexFromData(pScanline, nX)] = true;
|
|
}
|
|
|
|
for (sal_uInt16 i = 0; i < nMaxColors; i++)
|
|
{
|
|
// Hurray, we do have an unused entry
|
|
if (!pFlags[i])
|
|
{
|
|
pAcc->SetPaletteColor(i, rReplaceColor);
|
|
aReplace = BitmapColor(static_cast<sal_uInt8>(i));
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
aReplace = rReplaceColor;
|
|
|
|
for (long nY = 0; nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pAcc->GetScanline(nY);
|
|
Scanline pScanlineMask = pMaskAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; nX++)
|
|
{
|
|
if (pMaskAcc->GetPixelFromData(pScanlineMask, nX) == aMaskWhite)
|
|
pAcc->SetPixelOnData(pScanline, nX, aReplace);
|
|
}
|
|
}
|
|
|
|
bRet = true;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
bool Bitmap::Replace(const AlphaMask& rAlpha, const Color& rMergeColor)
|
|
{
|
|
Bitmap aNewBmp(GetSizePixel(), 24);
|
|
ScopedReadAccess pAcc(*this);
|
|
AlphaMask::ScopedReadAccess pAlphaAcc(const_cast<AlphaMask&>(rAlpha));
|
|
BitmapScopedWriteAccess pNewAcc(aNewBmp);
|
|
bool bRet = false;
|
|
|
|
if (pAcc && pAlphaAcc && pNewAcc)
|
|
{
|
|
BitmapColor aCol;
|
|
const long nWidth = std::min(pAlphaAcc->Width(), pAcc->Width());
|
|
const long nHeight = std::min(pAlphaAcc->Height(), pAcc->Height());
|
|
|
|
for (long nY = 0; nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pNewAcc->GetScanline(nY);
|
|
Scanline pScanlineAlpha = pAlphaAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; nX++)
|
|
{
|
|
aCol = pAcc->GetColor(nY, nX);
|
|
aCol.Merge(rMergeColor, 255 - pAlphaAcc->GetIndexFromData(pScanlineAlpha, nX));
|
|
pNewAcc->SetPixelOnData(pScanline, nX, aCol);
|
|
}
|
|
}
|
|
|
|
bRet = true;
|
|
}
|
|
|
|
pAcc.reset();
|
|
pAlphaAcc.reset();
|
|
pNewAcc.reset();
|
|
|
|
if (bRet)
|
|
{
|
|
const MapMode aMap(maPrefMapMode);
|
|
const Size aSize(maPrefSize);
|
|
|
|
*this = aNewBmp;
|
|
|
|
maPrefMapMode = aMap;
|
|
maPrefSize = aSize;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
bool Bitmap::Replace(const Color& rSearchColor, const Color& rReplaceColor, sal_uInt8 nTol)
|
|
{
|
|
if (mxSalBmp)
|
|
{
|
|
// implementation specific replace
|
|
std::shared_ptr<SalBitmap> xImpBmp(ImplGetSVData()->mpDefInst->CreateSalBitmap());
|
|
if (xImpBmp->Create(*mxSalBmp) && xImpBmp->Replace(rSearchColor, rReplaceColor, nTol))
|
|
{
|
|
ImplSetSalBitmap(xImpBmp);
|
|
maPrefMapMode = MapMode(MapUnit::MapPixel);
|
|
maPrefSize = xImpBmp->GetSize();
|
|
return true;
|
|
}
|
|
}
|
|
|
|
// Bitmaps with 1 bit color depth can cause problems if they have other entries than black/white
|
|
// in their palette
|
|
if (GetBitCount() == 1)
|
|
Convert(BmpConversion::N4BitColors);
|
|
|
|
BitmapScopedWriteAccess pAcc(*this);
|
|
bool bRet = false;
|
|
|
|
if (pAcc)
|
|
{
|
|
const long nMinR = MinMax<long>(rSearchColor.GetRed() - nTol, 0, 255);
|
|
const long nMaxR = MinMax<long>(rSearchColor.GetRed() + nTol, 0, 255);
|
|
const long nMinG = MinMax<long>(rSearchColor.GetGreen() - nTol, 0, 255);
|
|
const long nMaxG = MinMax<long>(rSearchColor.GetGreen() + nTol, 0, 255);
|
|
const long nMinB = MinMax<long>(rSearchColor.GetBlue() - nTol, 0, 255);
|
|
const long nMaxB = MinMax<long>(rSearchColor.GetBlue() + nTol, 0, 255);
|
|
|
|
if (pAcc->HasPalette())
|
|
{
|
|
for (sal_uInt16 i = 0, nPalCount = pAcc->GetPaletteEntryCount(); i < nPalCount; i++)
|
|
{
|
|
const BitmapColor& rCol = pAcc->GetPaletteColor(i);
|
|
|
|
if (nMinR <= rCol.GetRed() && nMaxR >= rCol.GetRed() && nMinG <= rCol.GetGreen()
|
|
&& nMaxG >= rCol.GetGreen() && nMinB <= rCol.GetBlue()
|
|
&& nMaxB >= rCol.GetBlue())
|
|
{
|
|
pAcc->SetPaletteColor(i, rReplaceColor);
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BitmapColor aCol;
|
|
const BitmapColor aReplace(pAcc->GetBestMatchingColor(rReplaceColor));
|
|
|
|
for (long nY = 0, nHeight = pAcc->Height(); nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pAcc->GetScanline(nY);
|
|
for (long nX = 0, nWidth = pAcc->Width(); nX < nWidth; nX++)
|
|
{
|
|
aCol = pAcc->GetPixelFromData(pScanline, nX);
|
|
|
|
if (nMinR <= aCol.GetRed() && nMaxR >= aCol.GetRed() && nMinG <= aCol.GetGreen()
|
|
&& nMaxG >= aCol.GetGreen() && nMinB <= aCol.GetBlue()
|
|
&& nMaxB >= aCol.GetBlue())
|
|
{
|
|
pAcc->SetPixelOnData(pScanline, nX, aReplace);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pAcc.reset();
|
|
bRet = true;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
bool Bitmap::Replace(const Color* pSearchColors, const Color* pReplaceColors, sal_uLong nColorCount,
|
|
sal_uInt8 const* pTols)
|
|
{
|
|
// Bitmaps with 1 bit color depth can cause problems if they have other entries than black/white
|
|
// in their palette
|
|
if (GetBitCount() == 1)
|
|
Convert(BmpConversion::N4BitColors);
|
|
|
|
BitmapScopedWriteAccess pAcc(*this);
|
|
bool bRet = false;
|
|
|
|
if (pAcc)
|
|
{
|
|
std::unique_ptr<long[]> pMinR(new long[nColorCount]);
|
|
std::unique_ptr<long[]> pMaxR(new long[nColorCount]);
|
|
std::unique_ptr<long[]> pMinG(new long[nColorCount]);
|
|
std::unique_ptr<long[]> pMaxG(new long[nColorCount]);
|
|
std::unique_ptr<long[]> pMinB(new long[nColorCount]);
|
|
std::unique_ptr<long[]> pMaxB(new long[nColorCount]);
|
|
|
|
if (pTols)
|
|
{
|
|
for (sal_uLong i = 0; i < nColorCount; i++)
|
|
{
|
|
const Color& rCol = pSearchColors[i];
|
|
const sal_uInt8 nTol = pTols[i];
|
|
|
|
pMinR[i] = MinMax<long>(rCol.GetRed() - nTol, 0, 255);
|
|
pMaxR[i] = MinMax<long>(rCol.GetRed() + nTol, 0, 255);
|
|
pMinG[i] = MinMax<long>(rCol.GetGreen() - nTol, 0, 255);
|
|
pMaxG[i] = MinMax<long>(rCol.GetGreen() + nTol, 0, 255);
|
|
pMinB[i] = MinMax<long>(rCol.GetBlue() - nTol, 0, 255);
|
|
pMaxB[i] = MinMax<long>(rCol.GetBlue() + nTol, 0, 255);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for (sal_uLong i = 0; i < nColorCount; i++)
|
|
{
|
|
const Color& rCol = pSearchColors[i];
|
|
|
|
pMinR[i] = rCol.GetRed();
|
|
pMaxR[i] = rCol.GetRed();
|
|
pMinG[i] = rCol.GetGreen();
|
|
pMaxG[i] = rCol.GetGreen();
|
|
pMinB[i] = rCol.GetBlue();
|
|
pMaxB[i] = rCol.GetBlue();
|
|
}
|
|
}
|
|
|
|
if (pAcc->HasPalette())
|
|
{
|
|
for (sal_uInt16 nEntry = 0, nPalCount = pAcc->GetPaletteEntryCount();
|
|
nEntry < nPalCount; nEntry++)
|
|
{
|
|
const BitmapColor& rCol = pAcc->GetPaletteColor(nEntry);
|
|
|
|
for (sal_uLong i = 0; i < nColorCount; i++)
|
|
{
|
|
if (pMinR[i] <= rCol.GetRed() && pMaxR[i] >= rCol.GetRed()
|
|
&& pMinG[i] <= rCol.GetGreen() && pMaxG[i] >= rCol.GetGreen()
|
|
&& pMinB[i] <= rCol.GetBlue() && pMaxB[i] >= rCol.GetBlue())
|
|
{
|
|
pAcc->SetPaletteColor(nEntry, pReplaceColors[i]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
else
|
|
{
|
|
BitmapColor aCol;
|
|
std::unique_ptr<BitmapColor[]> pReplaces(new BitmapColor[nColorCount]);
|
|
|
|
for (sal_uLong i = 0; i < nColorCount; i++)
|
|
pReplaces[i] = pAcc->GetBestMatchingColor(pReplaceColors[i]);
|
|
|
|
for (long nY = 0, nHeight = pAcc->Height(); nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pAcc->GetScanline(nY);
|
|
for (long nX = 0, nWidth = pAcc->Width(); nX < nWidth; nX++)
|
|
{
|
|
aCol = pAcc->GetPixelFromData(pScanline, nX);
|
|
|
|
for (sal_uLong i = 0; i < nColorCount; i++)
|
|
{
|
|
if (pMinR[i] <= aCol.GetRed() && pMaxR[i] >= aCol.GetRed()
|
|
&& pMinG[i] <= aCol.GetGreen() && pMaxG[i] >= aCol.GetGreen()
|
|
&& pMinB[i] <= aCol.GetBlue() && pMaxB[i] >= aCol.GetBlue())
|
|
{
|
|
pAcc->SetPixelOnData(pScanline, nX, pReplaces[i]);
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pAcc.reset();
|
|
bRet = true;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
bool Bitmap::CombineSimple(const Bitmap& rMask, BmpCombine eCombine)
|
|
{
|
|
ScopedReadAccess pMaskAcc(const_cast<Bitmap&>(rMask));
|
|
BitmapScopedWriteAccess pAcc(*this);
|
|
bool bRet = false;
|
|
|
|
if (pMaskAcc && pAcc)
|
|
{
|
|
const long nWidth = std::min(pMaskAcc->Width(), pAcc->Width());
|
|
const long nHeight = std::min(pMaskAcc->Height(), pAcc->Height());
|
|
const Color aColBlack(COL_BLACK);
|
|
const BitmapColor aWhite(pAcc->GetBestMatchingColor(COL_WHITE));
|
|
const BitmapColor aBlack(pAcc->GetBestMatchingColor(aColBlack));
|
|
const BitmapColor aMaskBlack(pMaskAcc->GetBestMatchingColor(aColBlack));
|
|
|
|
switch (eCombine)
|
|
{
|
|
case BmpCombine::And:
|
|
{
|
|
for (long nY = 0; nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pAcc->GetScanline(nY);
|
|
Scanline pScanlineMask = pMaskAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; nX++)
|
|
{
|
|
if (pMaskAcc->GetPixelFromData(pScanlineMask, nX) != aMaskBlack
|
|
&& pAcc->GetPixelFromData(pScanline, nX) != aBlack)
|
|
{
|
|
pAcc->SetPixelOnData(pScanline, nX, aWhite);
|
|
}
|
|
else
|
|
{
|
|
pAcc->SetPixelOnData(pScanline, nX, aBlack);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
|
|
case BmpCombine::Or:
|
|
{
|
|
for (long nY = 0; nY < nHeight; nY++)
|
|
{
|
|
Scanline pScanline = pAcc->GetScanline(nY);
|
|
Scanline pScanlineMask = pMaskAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; nX++)
|
|
{
|
|
if (pMaskAcc->GetPixelFromData(pScanlineMask, nX) != aMaskBlack
|
|
|| pAcc->GetPixelFromData(pScanline, nX) != aBlack)
|
|
{
|
|
pAcc->SetPixelOnData(pScanline, nX, aWhite);
|
|
}
|
|
else
|
|
{
|
|
pAcc->SetPixelOnData(pScanline, nX, aBlack);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
bRet = true;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
// TODO: Have a look at OutputDevice::ImplDrawAlpha() for some
|
|
// optimizations. Might even consolidate the code here and there.
|
|
bool Bitmap::Blend(const AlphaMask& rAlpha, const Color& rBackgroundColor)
|
|
{
|
|
// Convert to a truecolor bitmap, if we're a paletted one. There's room for tradeoff decision here,
|
|
// maybe later for an overload (or a flag)
|
|
if (GetBitCount() <= 8)
|
|
Convert(BmpConversion::N24Bit);
|
|
|
|
AlphaMask::ScopedReadAccess pAlphaAcc(const_cast<AlphaMask&>(rAlpha));
|
|
|
|
BitmapScopedWriteAccess pAcc(*this);
|
|
bool bRet = false;
|
|
|
|
if (pAlphaAcc && pAcc)
|
|
{
|
|
const long nWidth = std::min(pAlphaAcc->Width(), pAcc->Width());
|
|
const long nHeight = std::min(pAlphaAcc->Height(), pAcc->Height());
|
|
|
|
for (long nY = 0; nY < nHeight; ++nY)
|
|
{
|
|
Scanline pScanline = pAcc->GetScanline(nY);
|
|
Scanline pScanlineAlpha = pAlphaAcc->GetScanline(nY);
|
|
for (long nX = 0; nX < nWidth; ++nX)
|
|
{
|
|
BitmapColor aBmpColor = pAcc->GetPixelFromData(pScanline, nX);
|
|
aBmpColor.Merge(rBackgroundColor,
|
|
255 - pAlphaAcc->GetIndexFromData(pScanlineAlpha, nX));
|
|
pAcc->SetPixelOnData(pScanline, nX, aBmpColor);
|
|
}
|
|
}
|
|
|
|
bRet = true;
|
|
}
|
|
|
|
return bRet;
|
|
}
|
|
|
|
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|