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-rw-r--r--BUILD.gn1
-rw-r--r--core/include/fpdfapi/fpdf_resource.h2
-rw-r--r--core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp7
-rw-r--r--core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp4
-rw-r--r--core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp14
-rw-r--r--core/src/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp16
-rw-r--r--pdfium.gyp1
-rw-r--r--testing/resources/bug_547706.in43
-rw-r--r--testing/resources/bug_547706.pdf55
9 files changed, 128 insertions, 15 deletions
diff --git a/BUILD.gn b/BUILD.gn
index a2ddbadd55..4d100d1bf6 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -778,6 +778,7 @@ test("pdfium_embeddertests") {
sources = [
"core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp",
"core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp",
+ "core/src/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp",
"fpdfsdk/src/fpdf_dataavail_embeddertest.cpp",
"fpdfsdk/src/fpdfdoc_embeddertest.cpp",
"fpdfsdk/src/fpdfformfill_embeddertest.cpp",
diff --git a/core/include/fpdfapi/fpdf_resource.h b/core/include/fpdfapi/fpdf_resource.h
index 9fe6e2b95f..0b85333cfc 100644
--- a/core/include/fpdfapi/fpdf_resource.h
+++ b/core/include/fpdfapi/fpdf_resource.h
@@ -688,7 +688,7 @@ class CPDF_ShadingPattern : public CPDF_Pattern {
~CPDF_ShadingPattern() override;
- CPDF_Object* m_pShadingObj;
+ CPDF_Stream* m_pShadingObj;
FX_BOOL m_bShadingObj;
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
index b12a65a844..bd4319df11 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
@@ -1128,10 +1128,9 @@ void CPDF_StreamContentParser::Handle_ShadeFill() {
bbox = m_BBox;
}
if (pShading->m_ShadingType >= 4) {
- bbox.Intersect(_GetShadingBBox(ToStream(pShading->m_pShadingObj),
- pShading->m_ShadingType, &pObj->m_Matrix,
- pShading->m_pFunctions, pShading->m_nFuncs,
- pShading->m_pCS));
+ bbox.Intersect(_GetShadingBBox(
+ pShading->m_pShadingObj, pShading->m_ShadingType, &pObj->m_Matrix,
+ pShading->m_pFunctions, pShading->m_nFuncs, pShading->m_pCS));
}
pObj->m_Left = bbox.left;
pObj->m_Right = bbox.right;
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp
index 7b04d8cd33..d06f481138 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_pattern.cpp
@@ -71,12 +71,12 @@ CPDF_ShadingPattern::CPDF_ShadingPattern(CPDF_Document* pDoc,
CPDF_Dictionary* pDict = m_pPatternObj->GetDict();
ASSERT(pDict != NULL);
m_Pattern2Form = pDict->GetMatrix(FX_BSTRC("Matrix"));
- m_pShadingObj = pDict->GetElementValue(FX_BSTRC("Shading"));
+ m_pShadingObj = ToStream(pDict->GetElementValue(FX_BSTRC("Shading")));
if (parentMatrix) {
m_Pattern2Form.Concat(*parentMatrix);
}
} else {
- m_pShadingObj = pPatternObj;
+ m_pShadingObj = ToStream(pPatternObj);
}
m_ShadingType = 0;
m_pCS = NULL;
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
index 4ed6c07675..015f1a3166 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
@@ -881,20 +881,18 @@ void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern,
pColorSpace, alpha);
break;
case 4: {
- DrawFreeGouraudShading(pBitmap, &FinalMatrix,
- ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
- pColorSpace, alpha);
+ DrawFreeGouraudShading(pBitmap, &FinalMatrix, pPattern->m_pShadingObj,
+ pFuncs, nFuncs, pColorSpace, alpha);
} break;
case 5: {
- DrawLatticeGouraudShading(pBitmap, &FinalMatrix,
- ToStream(pPattern->m_pShadingObj), pFuncs,
- nFuncs, pColorSpace, alpha);
+ DrawLatticeGouraudShading(pBitmap, &FinalMatrix, pPattern->m_pShadingObj,
+ pFuncs, nFuncs, pColorSpace, alpha);
} break;
case 6:
case 7: {
DrawCoonPatchMeshes(pPattern->m_ShadingType - 6, pBitmap, &FinalMatrix,
- ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
- pColorSpace, fill_mode, alpha);
+ pPattern->m_pShadingObj, pFuncs, nFuncs, pColorSpace,
+ fill_mode, alpha);
} break;
}
if (bAlphaMode) {
diff --git a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp
new file mode 100644
index 0000000000..30d7a416be
--- /dev/null
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp
@@ -0,0 +1,16 @@
+// Copyright 2015 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.
+
+#include "../../../testing/embedder_test.h"
+#include "testing/gtest/include/gtest/gtest.h"
+
+class FPDFRenderPatternEmbeddertest : public EmbedderTest {};
+
+TEST_F(FPDFRenderPatternEmbeddertest, LoadError_547706) {
+ // Test shading where object is a dictionary instead of a stream.
+ EXPECT_TRUE(OpenDocument("testing/resources/bug_547706.pdf"));
+ FPDF_PAGE page = LoadPage(0);
+ RenderPage(page);
+ UnloadPage(page);
+}
diff --git a/pdfium.gyp b/pdfium.gyp
index 2aba2a7156..35e12e2dc3 100644
--- a/pdfium.gyp
+++ b/pdfium.gyp
@@ -749,6 +749,7 @@
'sources': [
'core/src/fpdfapi/fpdf_parser/fpdf_parser_decode_embeddertest.cpp',
'core/src/fpdfapi/fpdf_parser/fpdf_parser_parser_embeddertest.cpp',
+ 'core/src/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp',
'fpdfsdk/src/fpdf_dataavail_embeddertest.cpp',
'fpdfsdk/src/fpdfdoc_embeddertest.cpp',
'fpdfsdk/src/fpdfformfill_embeddertest.cpp',
diff --git a/testing/resources/bug_547706.in b/testing/resources/bug_547706.in
new file mode 100644
index 0000000000..4c31f19211
--- /dev/null
+++ b/testing/resources/bug_547706.in
@@ -0,0 +1,43 @@
+{{header}}
+
+{{object 1 0}}
+<< /Pages 2 0 R >>
+endobj
+
+{{object 2 0}}
+<< /Kids [ 3 0 R ] >>
+endobj
+
+{{object 3 0}}
+<< /Contents 4 0 R /Resources << /Pattern 6 0 R >>>>
+endobj
+
+{{object 4 0}}
+<< /Length 5 0 R >>
+stream
+/R9 scn
+0 0 2479 3508 re
+/R11 36 Tf
+[(1)-12288.9(2)]TJ
+endstream
+endobj
+
+{{object 6 0}}
+<< /R9 7 0 R >>
+endobj
+
+{{object 7 0}}
+<< /PatternType 2 /Shading 8 0 R >>
+endobj
+
+{{object 8 0}}
+<< /BitsPerComponent 16 /ColorSpace /DeviceRGB /ShadingType 5 >>
+endobj
+
+{{xref}}
+trailer <<
+ /Root 1 0 R
+ /Size 9
+>>
+{{startxref}}
+%%EOF
diff --git a/testing/resources/bug_547706.pdf b/testing/resources/bug_547706.pdf
new file mode 100644
index 0000000000..8003b3c488
--- /dev/null
+++ b/testing/resources/bug_547706.pdf
@@ -0,0 +1,55 @@
+%PDF-1.7
+% ò¤ô
+
+1 0 obj
+<< /Pages 2 0 R >>
+endobj
+
+2 0 obj
+<< /Kids [ 3 0 R ] >>
+endobj
+
+3 0 obj
+<< /Contents 4 0 R /Resources << /Pattern 6 0 R >>>>
+endobj
+
+4 0 obj
+<< /Length 5 0 R >>
+stream
+/R9 scn
+0 0 2479 3508 re
+/R11 36 Tf
+[(1)-12288.9(2)]TJ
+endstream
+endobj
+
+6 0 obj
+<< /R9 7 0 R >>
+endobj
+
+7 0 obj
+<< /PatternType 2 /Shading 8 0 R >>
+endobj
+
+8 0 obj
+<< /BitsPerComponent 16 /ColorSpace /DeviceRGB /ShadingType 5 >>
+endobj
+
+xref
+0 9
+0000000000 65535 f
+0000000016 00000 n
+0000000051 00000 n
+0000000089 00000 n
+0000000158 00000 n
+0000000000 65535 f
+0000000266 00000 n
+0000000298 00000 n
+0000000350 00000 n
+trailer <<
+ /Root 1 0 R
+ /Size 9
+>>
+startxref
+431
+%%EOF
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-21 16:36:20 +0000