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// Copyright 2014 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_patterncs.h"
#include "core/fpdfapi/page/cpdf_docpagedata.h"
#include "core/fpdfapi/parser/cpdf_array.h"
#include "core/fpdfapi/parser/cpdf_document.h"
#include "third_party/base/notreached.h"
CPDF_PatternCS::CPDF_PatternCS(CPDF_Document* pDoc)
: CPDF_ColorSpace(pDoc, Family::kPattern) {}
CPDF_PatternCS::~CPDF_PatternCS() = default;
void CPDF_PatternCS::InitializeStockPattern() {
SetComponentsForStockCS(1);
}
uint32_t CPDF_PatternCS::v_Load(CPDF_Document* pDoc,
const CPDF_Array* pArray,
std::set<const CPDF_Object*>* pVisited) {
const CPDF_Object* pBaseCS = pArray->GetDirectObjectAt(1);
if (pBaseCS == m_pArray)
return 0;
auto* pDocPageData = CPDF_DocPageData::FromDocument(pDoc);
m_pBaseCS = pDocPageData->GetColorSpaceGuarded(pBaseCS, nullptr, pVisited);
if (!m_pBaseCS)
return 1;
if (m_pBaseCS->GetFamily() == Family::kPattern)
return 0;
if (m_pBaseCS->CountComponents() > kMaxPatternColorComps)
return 0;
return m_pBaseCS->CountComponents() + 1;
}
bool CPDF_PatternCS::GetRGB(pdfium::span<const float> pBuf,
float* R,
float* G,
float* B) const {
NOTREACHED();
return false;
}
CPDF_PatternCS* CPDF_PatternCS::AsPatternCS() {
return this;
}
const CPDF_PatternCS* CPDF_PatternCS::AsPatternCS() const {
return this;
}
bool CPDF_PatternCS::GetPatternRGB(const PatternValue& value,
float* R,
float* G,
float* B) const {
if (m_pBaseCS && m_pBaseCS->GetRGB(value.GetComps(), R, G, B))
return true;
*R = 0.75f;
*G = 0.75f;
*B = 0.75f;
return false;
}