diff options
Diffstat (limited to 'core/fxge/dib/cfx_filtereddib.cpp')
-rw-r--r-- | core/fxge/dib/cfx_filtereddib.cpp | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/core/fxge/dib/cfx_filtereddib.cpp b/core/fxge/dib/cfx_filtereddib.cpp new file mode 100644 index 0000000000..2d6edd0d60 --- /dev/null +++ b/core/fxge/dib/cfx_filtereddib.cpp @@ -0,0 +1,42 @@ +// 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 CFX_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); +} |