| // 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" |
| |
| CPDF_PatternCS::CPDF_PatternCS(CPDF_Document* pDoc) |
| : CPDF_ColorSpace(pDoc, PDFCS_PATTERN, 1), |
| m_pBaseCS(nullptr), |
| m_pCountedBaseCS(nullptr) {} |
| |
| CPDF_PatternCS::~CPDF_PatternCS() { |
| CPDF_ColorSpace* pCS = m_pCountedBaseCS ? m_pCountedBaseCS->get() : nullptr; |
| if (pCS && m_pDocument) { |
| auto* pPageData = m_pDocument->GetPageData(); |
| if (pPageData) |
| pPageData->ReleaseColorSpace(pCS->GetArray()); |
| } |
| } |
| |
| bool CPDF_PatternCS::v_Load(CPDF_Document* pDoc, CPDF_Array* pArray) { |
| CPDF_Object* pBaseCS = pArray->GetDirectObjectAt(1); |
| if (pBaseCS == m_pArray) |
| return false; |
| |
| CPDF_DocPageData* pDocPageData = pDoc->GetPageData(); |
| m_pBaseCS = pDocPageData->GetColorSpace(pBaseCS, nullptr); |
| if (!m_pBaseCS) { |
| m_nComponents = 1; |
| return true; |
| } |
| |
| if (m_pBaseCS->GetFamily() == PDFCS_PATTERN) |
| return false; |
| |
| m_pCountedBaseCS = pDocPageData->FindColorSpacePtr(m_pBaseCS->GetArray()); |
| m_nComponents = m_pBaseCS->CountComponents() + 1; |
| return m_pBaseCS->CountComponents() <= MAX_PATTERN_COLORCOMPS; |
| } |
| |
| bool CPDF_PatternCS::GetRGB(float* pBuf, float* R, float* G, float* B) const { |
| if (m_pBaseCS) { |
| ASSERT(m_pBaseCS->GetFamily() != PDFCS_PATTERN); |
| PatternValue* pvalue = (PatternValue*)pBuf; |
| if (m_pBaseCS->GetRGB(pvalue->m_Comps, R, G, B)) |
| return true; |
| } |
| *R = 0.75f; |
| *G = 0.75f; |
| *B = 0.75f; |
| return false; |
| } |