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Diffstat (limited to 'core/fpdfapi/page/cpdf_patterncs.cpp')
-rw-r--r--core/fpdfapi/page/cpdf_patterncs.cpp62
1 files changed, 62 insertions, 0 deletions
diff --git a/core/fpdfapi/page/cpdf_patterncs.cpp b/core/fpdfapi/page/cpdf_patterncs.cpp
new file mode 100644
index 0000000000..4951f61d54
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+++ b/core/fpdfapi/page/cpdf_patterncs.cpp
@@ -0,0 +1,62 @@
+// 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;
+}
+
+CPDF_ColorSpace* CPDF_PatternCS::GetBaseCS() const {
+ return m_pBaseCS;
+}