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// Copyright 2017 PDFium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// Original code copyright 2014 Foxit Software Inc. http://www.foxitsoftware.com
#include "core/fxge/dib/cfx_filtereddib.h"
#include "core/fxge/fx_dib.h"
CFX_FilteredDIB::CFX_FilteredDIB() {}
CFX_FilteredDIB::~CFX_FilteredDIB() {}
void CFX_FilteredDIB::LoadSrc(const RetainPtr<CFX_DIBSource>& pSrc) {
m_pSrc = pSrc;
m_Width = pSrc->GetWidth();
m_Height = pSrc->GetHeight();
FXDIB_Format format = GetDestFormat();
m_bpp = static_cast<uint8_t>(format);
m_AlphaFlag = static_cast<uint8_t>(format >> 8);
m_Pitch = (m_Width * (format & 0xff) + 31) / 32 * 4;
m_pPalette.reset(GetDestPalette());
m_Scanline.resize(m_Pitch);
}
const uint8_t* CFX_FilteredDIB::GetScanline(int line) const {
TranslateScanline(m_pSrc->GetScanline(line), &m_Scanline);
return m_Scanline.data();
}
void CFX_FilteredDIB::DownSampleScanline(int line,
uint8_t* dest_scan,
int dest_bpp,
int dest_width,
bool bFlipX,
int clip_left,
int clip_width) const {
m_pSrc->DownSampleScanline(line, dest_scan, dest_bpp, dest_width, bFlipX,
clip_left, clip_width);
TranslateDownSamples(dest_scan, dest_scan, clip_width, dest_bpp);
}
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