| // Copyright 2016 The PDFium Authors |
| // 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/fpdfapi/page/cpdf_transferfunc.h" |
| |
| #include <stdint.h> |
| |
| #include <utility> |
| |
| #include "core/fpdfapi/page/cpdf_transferfuncdib.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fxcrt/check_op.h" |
| #include "core/fxcrt/fixed_size_data_vector.h" |
| #include "core/fxge/dib/cfx_dibbase.h" |
| |
| CPDF_TransferFunc::CPDF_TransferFunc(bool bIdentify, |
| FixedSizeDataVector<uint8_t> samples_r, |
| FixedSizeDataVector<uint8_t> samples_g, |
| FixedSizeDataVector<uint8_t> samples_b) |
| : m_bIdentity(bIdentify), |
| m_SamplesR(std::move(samples_r)), |
| m_SamplesG(std::move(samples_g)), |
| m_SamplesB(std::move(samples_b)) { |
| DCHECK_EQ(m_SamplesR.size(), kChannelSampleSize); |
| DCHECK_EQ(m_SamplesG.size(), kChannelSampleSize); |
| DCHECK_EQ(m_SamplesB.size(), kChannelSampleSize); |
| } |
| |
| CPDF_TransferFunc::~CPDF_TransferFunc() = default; |
| |
| FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF colorref) const { |
| return FXSYS_BGR(m_SamplesB.span()[FXSYS_GetBValue(colorref)], |
| m_SamplesG.span()[FXSYS_GetGValue(colorref)], |
| m_SamplesR.span()[FXSYS_GetRValue(colorref)]); |
| } |
| |
| RetainPtr<CFX_DIBBase> CPDF_TransferFunc::TranslateImage( |
| RetainPtr<CFX_DIBBase> pSrc) { |
| return pdfium::MakeRetain<CPDF_TransferFuncDIB>(std::move(pSrc), |
| pdfium::WrapRetain(this)); |
| } |
| |
| pdfium::span<const uint8_t> CPDF_TransferFunc::GetSamplesR() const { |
| return m_SamplesR; |
| } |
| |
| pdfium::span<const uint8_t> CPDF_TransferFunc::GetSamplesG() const { |
| return m_SamplesG; |
| } |
| |
| pdfium::span<const uint8_t> CPDF_TransferFunc::GetSamplesB() const { |
| return m_SamplesB; |
| } |