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authorDan Sinclair <dsinclair@chromium.org>2015-10-26 16:25:38 -0400
committerDan Sinclair <dsinclair@chromium.org>2015-10-26 16:25:38 -0400
commit95d25e4585358c74ae91c2ed5e08099ebbfdf24c (patch)
tree89207598714eda2da04af966a013c905a1c63dcf /core/src/fpdfapi
parent85361b227ad6786d2aeef8409b79a8d077a26ee9 (diff)
downloadpdfium-95d25e4585358c74ae91c2ed5e08099ebbfdf24c.tar.xz
Revert "Make m_pShadingObj a CPDF_Stream instead of CPDF_Object."
There appear to be a bunch of corpus tests which fail with this change such as FAILURE: shading1.pdf This reverts commit 85361b227ad6786d2aeef8409b79a8d077a26ee9. Make m_pShadingObj a CPDF_Stream instead of CPDF_Object. This object is required to be a stream and was being converted as such. With the new type checking this caused us to pass a nullptr where previously we'd have, incorrectly, cast a CPDF_Dictionary to a CPDF_Stream. This CL changes the m_pShadingObj to always be a CPDF_Stream. Then, we never go down the bad code path because we check if m_pShadingObj is nullptr earlier and bail out. BUG=chromium:547706 TBR=tsepez@chromium.org Review URL: https://codereview.chromium.org/1414283003 .
Diffstat (limited to 'core/src/fpdfapi')
-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
4 files changed, 14 insertions, 27 deletions
diff --git a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
index bd4319df11..b12a65a844 100644
--- a/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
+++ b/core/src/fpdfapi/fpdf_page/fpdf_page_parser.cpp
@@ -1128,9 +1128,10 @@ void CPDF_StreamContentParser::Handle_ShadeFill() {
bbox = m_BBox;
}
if (pShading->m_ShadingType >= 4) {
- bbox.Intersect(_GetShadingBBox(
- pShading->m_pShadingObj, pShading->m_ShadingType, &pObj->m_Matrix,
- pShading->m_pFunctions, pShading->m_nFuncs, pShading->m_pCS));
+ bbox.Intersect(_GetShadingBBox(ToStream(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 d06f481138..7b04d8cd33 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 = ToStream(pDict->GetElementValue(FX_BSTRC("Shading")));
+ m_pShadingObj = pDict->GetElementValue(FX_BSTRC("Shading"));
if (parentMatrix) {
m_Pattern2Form.Concat(*parentMatrix);
}
} else {
- m_pShadingObj = ToStream(pPatternObj);
+ m_pShadingObj = 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 015f1a3166..4ed6c07675 100644
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
+++ b/core/src/fpdfapi/fpdf_render/fpdf_render_pattern.cpp
@@ -881,18 +881,20 @@ void CPDF_RenderStatus::DrawShading(CPDF_ShadingPattern* pPattern,
pColorSpace, alpha);
break;
case 4: {
- DrawFreeGouraudShading(pBitmap, &FinalMatrix, pPattern->m_pShadingObj,
- pFuncs, nFuncs, pColorSpace, alpha);
+ DrawFreeGouraudShading(pBitmap, &FinalMatrix,
+ ToStream(pPattern->m_pShadingObj), pFuncs, nFuncs,
+ pColorSpace, alpha);
} break;
case 5: {
- DrawLatticeGouraudShading(pBitmap, &FinalMatrix, pPattern->m_pShadingObj,
- pFuncs, nFuncs, pColorSpace, alpha);
+ DrawLatticeGouraudShading(pBitmap, &FinalMatrix,
+ ToStream(pPattern->m_pShadingObj), pFuncs,
+ nFuncs, pColorSpace, alpha);
} break;
case 6:
case 7: {
DrawCoonPatchMeshes(pPattern->m_ShadingType - 6, pBitmap, &FinalMatrix,
- pPattern->m_pShadingObj, pFuncs, nFuncs, pColorSpace,
- fill_mode, alpha);
+ ToStream(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
deleted file mode 100644
index 30d7a416be..0000000000
--- a/core/src/fpdfapi/fpdf_render/fpdf_render_pattern_embeddertest.cpp
+++ /dev/null
@@ -1,16 +0,0 @@
-// 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);
-}