/* -*- 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/. * */ #include #include #include #include #include #include #include BitmapEx BitmapSimpleColorQuantizationFilter::execute(BitmapEx const& aBitmapEx) const { Bitmap aBitmap = aBitmapEx.GetBitmap(); bool bRet = false; if (aBitmap.GetColorCount() <= static_cast(mnNewColorCount)) { bRet = true; } else { Bitmap aNewBmp; Bitmap::ScopedReadAccess pRAcc(aBitmap); const sal_uInt16 nColorCount = std::min(mnNewColorCount, sal_uInt16(256)); sal_uInt16 nBitCount = 0; if (nColorCount <= 2) nBitCount = 1; else if (nColorCount <= 16) nBitCount = 4; else nBitCount = 8; if (pRAcc) { Octree aOct(*pRAcc, nColorCount); const BitmapPalette& rPal = aOct.GetPalette(); aNewBmp = Bitmap(aBitmap.GetSizePixel(), nBitCount, &rPal); BitmapScopedWriteAccess pWAcc(aNewBmp); if (pWAcc) { const long nWidth = pRAcc->Width(); const long nHeight = pRAcc->Height(); if (pRAcc->HasPalette()) { for (long nY = 0; nY < nHeight; nY++) { Scanline pScanline = pWAcc->GetScanline(nY); Scanline pScanlineRead = pRAcc->GetScanline(nY); for (long nX = 0; nX < nWidth; nX++) { auto c = pRAcc->GetPaletteColor( pRAcc->GetIndexFromData(pScanlineRead, nX)); pWAcc->SetPixelOnData( pScanline, nX, BitmapColor(static_cast(aOct.GetBestPaletteIndex(c)))); } } } else { for (long nY = 0; nY < nHeight; nY++) { Scanline pScanline = pWAcc->GetScanline(nY); Scanline pScanlineRead = pRAcc->GetScanline(nY); for (long nX = 0; nX < nWidth; nX++) { auto c = pRAcc->GetPixelFromData(pScanlineRead, nX); pWAcc->SetPixelOnData( pScanline, nX, BitmapColor(static_cast(aOct.GetBestPaletteIndex(c)))); } } } pWAcc.reset(); bRet = true; } pRAcc.reset(); } if (bRet) { const MapMode aMap(aBitmap.GetPrefMapMode()); const Size aSize(aBitmap.GetPrefSize()); aBitmap = aNewBmp; aBitmap.SetPrefMapMode(aMap); aBitmap.SetPrefSize(aSize); } } if (bRet) return BitmapEx(aBitmap); return BitmapEx(); } /* vim:set shiftwidth=4 softtabstop=4 expandtab: */ -desktop'>distro/collabora/cp-5.3-desktop LibreOffice 核心代码仓库文档基金会

path: root/lingucomponent/Library_MacOSXSpell.mk

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