| // Copyright 2016 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/fpdfapi/page/cpdf_transferfunc.h" |
| |
| #include <utility> |
| |
| #include "core/fpdfapi/page/cpdf_transferfuncdib.h" |
| #include "core/fpdfapi/parser/cpdf_document.h" |
| #include "core/fxge/dib/cfx_dibbase.h" |
| |
| CPDF_TransferFunc::CPDF_TransferFunc( |
| CPDF_Document* pDoc, |
| bool bIdentify, |
| std::vector<uint8_t, FxAllocAllocator<uint8_t>> samples_r, |
| std::vector<uint8_t, FxAllocAllocator<uint8_t>> samples_g, |
| std::vector<uint8_t, FxAllocAllocator<uint8_t>> samples_b) |
| : m_pPDFDoc(pDoc), |
| m_bIdentity(bIdentify), |
| m_SamplesR(std::move(samples_r)), |
| m_SamplesG(std::move(samples_g)), |
| m_SamplesB(std::move(samples_b)) { |
| ASSERT(m_SamplesR.size() == kChannelSampleSize); |
| ASSERT(m_SamplesG.size() == kChannelSampleSize); |
| ASSERT(m_SamplesB.size() == kChannelSampleSize); |
| } |
| |
| CPDF_TransferFunc::~CPDF_TransferFunc() = default; |
| |
| FX_COLORREF CPDF_TransferFunc::TranslateColor(FX_COLORREF colorref) const { |
| return FXSYS_BGR(m_SamplesB[FXSYS_GetBValue(colorref)], |
| m_SamplesG[FXSYS_GetGValue(colorref)], |
| m_SamplesR[FXSYS_GetRValue(colorref)]); |
| } |
| |
| RetainPtr<CFX_DIBBase> CPDF_TransferFunc::TranslateImage( |
| const RetainPtr<CFX_DIBBase>& pSrc) { |
| RetainPtr<CPDF_TransferFunc> pHolder(this); |
| return pdfium::MakeRetain<CPDF_TransferFuncDIB>(pSrc, pHolder); |
| } |
| |
| 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; |
| } |