pdfium: Import PDF with unloaded images.

Reviewed-on: https://gerrit.libreoffice.org/56268
Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>
Tested-by: Ashod Nakashian <ashnakash@gmail.com>
(cherry picked from commit e07561d2ae743b208a0807ef32d7f011614b73e5)

Change-Id: I5e4a16ff38b9643127ce16879b35f456c13bcff8
Reviewed-on: https://gerrit.libreoffice.org/77688
Tested-by: Jenkins
Reviewed-by: Ashod Nakashian <ashnakash@gmail.com>

1 files changed, 14 insertions, 22 deletions

diff --git a/sd/source/filter/pdf/sdpdffilter.cxx b/sd/source/filter/pdf/sdpdffilter.cxx
index 3fe38252b626..0cf7baa9dd6c 100644
--- a/sd/source/filter/pdf/sdpdffilter.cxx
+++ b/sd/source/filter/pdf/sdpdffilter.cxx
@@ -54,37 +54,29 @@ bool SdPdfFilter::Import()
     // Rendering resolution.
     const double dResolutionDPI = 96.;
 
-    uno::Sequence<sal_Int8> aPdfData;
-    std::vector<Bitmap> aBitmaps;
-    if (vcl::ImportPDF(aFileName, aBitmaps, aPdfData, dResolutionDPI) == 0)
+    std::vector<std::pair<Graphic, Size>> aGraphics;
+    if (vcl::ImportPDFUnloaded(aFileName, aGraphics, dResolutionDPI) == 0)
         return false;
 
-    // Prepare the link with the PDF stream.
-    const size_t nGraphicContentSize = aPdfData.getLength();
-    std::unique_ptr<sal_uInt8[]> pGraphicContent(new sal_uInt8[nGraphicContentSize]);
-    memcpy(pGraphicContent.get(), aPdfData.get(), nGraphicContentSize);
-    std::shared_ptr<GfxLink> pGfxLink(std::make_shared<GfxLink>(
-        std::move(pGraphicContent), nGraphicContentSize, GfxLinkType::NativePdf));
-    auto pPdfData = std::make_shared<uno::Sequence<sal_Int8>>(aPdfData);
-
+    // Add as many pages as we need up-front.
     mrDocument.CreateFirstPages();
-    for (size_t i = 0; i < aBitmaps.size() - 1; ++i)
+    for (size_t i = 0; i < aGraphics.size() - 1; ++i)
     {
         mrDocument.DuplicatePage(0);
     }
 
-    size_t nPageNumber = 0;
-    for (const Bitmap& aBitmap : aBitmaps)
+    for (const std::pair<Graphic, Size>& aPair : aGraphics)
     {
-        // Create the Graphic and link the original PDF stream.
-        Graphic aGraphic(aBitmap);
-        aGraphic.setPdfData(pPdfData);
-        aGraphic.setPageNumber(nPageNumber);
-        aGraphic.SetGfxLink(pGfxLink);
+        const Graphic& rGraphic = aPair.first;
+        const Size& aSize = aPair.second;
+
+        const sal_Int32 nPageNumber = rGraphic.getPageNumber();
+        if (nPageNumber < 0 || static_cast<size_t>(nPageNumber) >= aGraphics.size())
+            continue; // Page is out of range
 
         // Create the page and insert the Graphic.
-        SdPage* pPage = mrDocument.GetSdPage(nPageNumber++, PageKind::Standard);
-        Size aGrfSize(OutputDevice::LogicToLogic(aGraphic.GetPrefSize(), aGraphic.GetPrefMapMode(),
+        SdPage* pPage = mrDocument.GetSdPage(nPageNumber, PageKind::Standard);
+        Size aGrfSize(OutputDevice::LogicToLogic(aSize, rGraphic.GetPrefMapMode(),
                                                  MapMode(MapUnit::Map100thMM)));
 
         // Resize to original size based on 72 dpi to preserve page size.
@@ -95,7 +87,7 @@ bool SdPdfFilter::Import()
         pPage->SetSize(aGrfSize);
         Point aPos(0, 0);
 
-        pPage->InsertObject(new SdrGrafObj(pPage->getSdrModelFromSdrPage(), aGraphic,
+        pPage->InsertObject(new SdrGrafObj(pPage->getSdrModelFromSdrPage(), rGraphic,
                                            tools::Rectangle(aPos, aGrfSize)));
     }