Add postscript path

fpdfsdk/fpdfview.cpp

 // 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 "public/fpdfview.h"
 
 #include <memory>
 #include <utility>
@@ skipping 411 matching lines @@
       break;
   }
   SetLastError(err_code);
 }
 
 DLLEXPORT void STDCALL FPDF_SetSandBoxPolicy(FPDF_DWORD policy,
                                              FPDF_BOOL enable) {
   return FSDK_SetSandBoxPolicy(policy, enable);
 }
 
-#if defined(_WIN32) && defined(PDFIUM_PRINT_TEXT_WITH_GDI)
+#if defined(_WIN32)
+#if defined(PDFIUM_PRINT_TEXT_WITH_GDI)
 DLLEXPORT void STDCALL
 FPDF_SetTypefaceAccessibleFunc(PDFiumEnsureTypefaceCharactersAccessible func) {
   g_pdfium_typeface_accessible_func = func;
 }
 
 DLLEXPORT void STDCALL FPDF_SetPrintTextWithGDI(FPDF_BOOL use_gdi) {
   g_pdfium_print_text_with_gdi = !!use_gdi;
 }
-#endif
+#endif  // PDFIUM_PRINT_TEXT_WITH_GDI
+
+DLLEXPORT FPDF_BOOL STDCALL FPDF_SetPrintPostscriptLevel(int postscript_level) {
+  if (postscript_level != 0 && postscript_level != 2 && postscript_level != 3)
+    return FALSE;
+  g_pdfium_print_postscript_level = postscript_level;
+  return TRUE;
+}
+#endif  // defined(_WIN32)
 
 DLLEXPORT FPDF_DOCUMENT STDCALL FPDF_LoadDocument(FPDF_STRING file_path,
                                                   FPDF_BYTESTRING password) {
   // NOTE: the creation of the file needs to be by the embedder on the
   // other side of this API.
   CFX_RetainPtr<IFX_SeekableReadStream> pFileAccess =
       IFX_SeekableReadStream::CreateFromFilename((const FX_CHAR*)file_path);
   if (!pFileAccess)
     return nullptr;
 
@@ skipping 197 matching lines @@
                                        int rotate,
                                        int flags) {
   CPDF_Page* pPage = CPDFPageFromFPDFPage(page);
   if (!pPage)
     return;
 
   CPDF_PageRenderContext* pContext = new CPDF_PageRenderContext;
   pPage->SetRenderContext(pdfium::WrapUnique(pContext));
 
   std::unique_ptr<CFX_DIBitmap> pBitmap;
+  // TODO: This results in unnecessary rasterization of some PDFs due to
+  // HasImageMask() returning true. If any image on the page is a mask, the
+  // entire page gets rasterized and the spool size gets huge.
   const bool bNewBitmap =
       pPage->BackgroundAlphaNeeded() || pPage->HasImageMask();
   if (bNewBitmap) {
     pBitmap = pdfium::MakeUnique<CFX_DIBitmap>();
     pBitmap->Create(size_x, size_y, FXDIB_Argb);
     pBitmap->Clear(0x00ffffff);
     CFX_FxgeDevice* pDevice = new CFX_FxgeDevice;
     pContext->m_pDevice = pdfium::WrapUnique(pDevice);
     pDevice->Attach(pBitmap.get(), false, nullptr, false);
   } else {
@@ skipping 553 matching lines @@
   if (!buffer) {
     *buflen = len;
   } else if (len <= *buflen) {
     memcpy(buffer, utf16Name.c_str(), len);
     *buflen = len;
   } else {
     *buflen = -1;
   }
   return (FPDF_DEST)pDestObj;
 }