Render image masks individually instead of rendering the entire page as

a bitmap in order to reduce spool sizes.

BUG=682156, 674771

Change-Id: Ic743ba729a7b9609be18fb620a5eb6bc440aed6a
Reviewed-on: https://pdfium-review.googlesource.com/2916
Commit-Queue: Lei Zhang <thestig@chromium.org>
Reviewed-by: Lei Zhang <thestig@chromium.org>

1 files changed, 7 insertions, 4 deletions

diff --git a/core/fpdfapi/page/cpdf_pageobjectholder.h b/core/fpdfapi/page/cpdf_pageobjectholder.h
index aee7617c1f..0b88a86518 100644
--- a/core/fpdfapi/page/cpdf_pageobjectholder.h
+++ b/core/fpdfapi/page/cpdf_pageobjectholder.h
@@ -8,6 +8,7 @@
 #define CORE_FPDFAPI_PAGE_CPDF_PAGEOBJECTHOLDER_H_
 
 #include <memory>
+#include <vector>
 
 #include "core/fpdfapi/page/cpdf_pageobjectlist.h"
 #include "core/fxcrt/fx_coordinates.h"
@@ -41,9 +42,11 @@ class CPDF_PageObjectHolder {
     m_bBackgroundAlphaNeeded = needed;
   }
 
-  bool HasImageMask() const { return m_bHasImageMask; }
-  void SetHasImageMask(bool value) { m_bHasImageMask = value; }
-
+  bool HasImageMask() const { return !m_MaskBoundingBoxes.empty(); }
+  const std::vector<CFX_FloatRect>& GetMaskBoundingBoxes() const {
+    return m_MaskBoundingBoxes;
+  }
+  void AddImageMaskBoundingBox(const CFX_FloatRect& box);
   void Transform(const CFX_Matrix& matrix);
   CFX_FloatRect CalcBoundingBox() const;
 
@@ -61,7 +64,7 @@ class CPDF_PageObjectHolder {
   void LoadTransInfo();
 
   bool m_bBackgroundAlphaNeeded;
-  bool m_bHasImageMask;
+  std::vector<CFX_FloatRect> m_MaskBoundingBoxes;
   ParseState m_ParseState;
   std::unique_ptr<CPDF_ContentParser> m_pParser;
   CPDF_PageObjectList m_PageObjectList;