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832a694e52
Updates old-style copyright headers to the new style, by removing "All rights reserved." Also inserts "The" before "PDFium Authors", which is required by both styles. Mechanically generated by this command: PATTERN='Copyright \([0-9]\+\) \(The \)\?PDFium Authors. All rights reserved.' git grep -l "$PATTERN" \ | xargs sed "s/$PATTERN/Copyright \1 The PDFium Authors/" -i'' Fixed: pdfium:1884 Change-Id: I6f781d811df8839e2e21b85f716529b813828bcd Reviewed-on: https://pdfium-review.googlesource.com/c/pdfium/+/100371 Reviewed-by: Lei Zhang <thestig@chromium.org> Commit-Queue: K. Moon <kmoon@chromium.org>
70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
// Copyright 2017 The PDFium Authors
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
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#include "core/fxcodec/scanlinedecoder.h"
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#include "core/fxcrt/pauseindicator_iface.h"
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namespace fxcodec {
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ScanlineDecoder::ScanlineDecoder() : ScanlineDecoder(0, 0, 0, 0, 0, 0, 0) {}
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ScanlineDecoder::ScanlineDecoder(int nOrigWidth,
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int nOrigHeight,
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int nOutputWidth,
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int nOutputHeight,
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int nComps,
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int nBpc,
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uint32_t nPitch)
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: m_OrigWidth(nOrigWidth),
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m_OrigHeight(nOrigHeight),
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m_OutputWidth(nOutputWidth),
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m_OutputHeight(nOutputHeight),
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m_nComps(nComps),
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m_bpc(nBpc),
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m_Pitch(nPitch) {}
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ScanlineDecoder::~ScanlineDecoder() = default;
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pdfium::span<const uint8_t> ScanlineDecoder::GetScanline(int line) {
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if (m_NextLine == line + 1)
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return m_pLastScanline;
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if (m_NextLine < 0 || m_NextLine > line) {
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if (!Rewind())
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return pdfium::span<const uint8_t>();
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m_NextLine = 0;
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}
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while (m_NextLine < line) {
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GetNextLine();
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m_NextLine++;
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}
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m_pLastScanline = GetNextLine();
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m_NextLine++;
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return m_pLastScanline;
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}
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bool ScanlineDecoder::SkipToScanline(int line, PauseIndicatorIface* pPause) {
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if (m_NextLine == line || m_NextLine == line + 1)
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return false;
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if (m_NextLine < 0 || m_NextLine > line) {
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Rewind();
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m_NextLine = 0;
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}
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m_pLastScanline = pdfium::span<uint8_t>();
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while (m_NextLine < line) {
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m_pLastScanline = GetNextLine();
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m_NextLine++;
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if (pPause && pPause->NeedToPauseNow()) {
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return true;
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}
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}
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return false;
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}
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} // namespace fxcodec
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