fix warnings on Mac in src/pdf

Fix these class of warnings:
- unused functions
- unused locals
- sign mismatch
- missing function prototypes
- missing newline at end of file
- 64 to 32 bit truncation

The changes prefer to link in dead code in the debug build
with 'if (false)' than to comment it out, but trivial cases
are commented out or sometimes deleted if it appears to be
a copy/paste error.
Review URL: https://codereview.appspot.com/6299047

git-svn-id: http://skia.googlecode.com/svn/trunk@4178 2bbb7eff-a529-9590-31e7-b0007b416f81

src/pdf/SkPDFCatalog.cpp

@@ -190,7 +190,7 @@ off_t SkPDFCatalog::setSubstituteResourcesOffsets(off_t fileOffset,
     SkTDArray<SkPDFObject*>* targetList = getSubstituteList(firstPage);
     off_t offsetSum = fileOffset;
     for (int i = 0; i < targetList->count(); ++i) {
-        offsetSum += setFileOffset((*targetList)[i], offsetSum);
+        offsetSum += setFileOffset((*targetList)[i], (size_t) offsetSum);
     }
     return offsetSum - fileOffset;
 }

src/pdf/SkPDFDocument.cpp

@@ -17,7 +17,7 @@
 
 // Add the resources, starting at firstIndex to the catalog, removing any dupes.
 // A hash table would be really nice here.
-void addResourcesToCatalog(int firstIndex, bool firstPage,
+static void addResourcesToCatalog(int firstIndex, bool firstPage,
                           SkTDArray<SkPDFObject*>* resourceList,
                           SkPDFCatalog* catalog) {
     for (int i = firstIndex; i < resourceList->count(); i++) {
@@ -123,12 +123,14 @@ bool SkPDFDocument::emitPDF(SkWStream* stream) {
 
         // Figure out the size of things and inform the catalog of file offsets.
         off_t fileOffset = headerSize();
-        fileOffset += fCatalog->setFileOffset(fDocCatalog.get(), fileOffset);
-        fileOffset += fCatalog->setFileOffset(fPages[0], fileOffset);
-        fileOffset += fPages[0]->getPageSize(fCatalog.get(), fileOffset);
+        fileOffset += fCatalog->setFileOffset(fDocCatalog.get(),
+                (size_t) fileOffset);
+        fileOffset += fCatalog->setFileOffset(fPages[0], (size_t) fileOffset);
+        fileOffset += fPages[0]->getPageSize(fCatalog.get(),
+                (size_t) fileOffset);
         for (int i = 0; i < fSecondPageFirstResourceIndex; i++) {
             fileOffset += fCatalog->setFileOffset(fPageResources[i],
-                                                  fileOffset);
+                                                  (size_t) fileOffset);
         }
         // Add the size of resources of substitute objects used on page 1.
         fileOffset += fCatalog->setSubstituteResourcesOffsets(fileOffset, true);
@@ -138,18 +140,20 @@ bool SkPDFDocument::emitPDF(SkWStream* stream) {
         }
 
         for (int i = 0; i < fPageTree.count(); i++) {
-            fileOffset += fCatalog->setFileOffset(fPageTree[i], fileOffset);
+            fileOffset += fCatalog->setFileOffset(fPageTree[i],
+                    (size_t) fileOffset);
         }
 
         for (int i = 1; i < fPages.count(); i++) {
-            fileOffset += fPages[i]->getPageSize(fCatalog.get(), fileOffset);
+            fileOffset += fPages[i]->getPageSize(fCatalog.get(),
+                    (size_t) fileOffset);
         }
 
         for (int i = fSecondPageFirstResourceIndex;
                  i < fPageResources.count();
                  i++) {
             fileOffset += fCatalog->setFileOffset(fPageResources[i],
-                                                  fileOffset);
+                                                  (size_t) fileOffset);
         }
 
         fileOffset += fCatalog->setSubstituteResourcesOffsets(fileOffset,

src/pdf/SkPDFFont.cpp

@@ -463,6 +463,13 @@ static void append_bfrange_section(const SkTDArray<BFRange>& bfrange,
 // For the worst case (having 65536 continuous unicode and we use every other
 // one of them), the possible savings by aggressive optimization is 416KB
 // pre-compressed and does not provide enough motivation for implementation.
+
+// FIXME: this should be in a header so that it is separately testable
+// ( see caller in tests/ToUnicode.cpp )
+void append_cmap_sections(const SkTDArray<SkUnichar>& glyphToUnicode,
+                          const SkPDFGlyphSet* subset,
+                          SkDynamicMemoryWStream* cmap);
+                          
 void append_cmap_sections(const SkTDArray<SkUnichar>& glyphToUnicode,
                           const SkPDFGlyphSet* subset,
                           SkDynamicMemoryWStream* cmap) {
@@ -529,10 +536,12 @@ static SkPDFStream* generate_tounicode_cmap(
     return new SkPDFStream(cmapStream.get());
 }
 
+#if defined (SK_SFNTLY_SUBSETTER)
 static void sk_delete_array(const void* ptr, size_t, void*) {
     // Use C-style cast to cast away const and cast type simultaneously.
     delete[] (unsigned char*)ptr;
 }
+#endif
 
 static int get_subset_font_stream(const char* fontName,
                                   const SkTypeface* typeface,

src/pdf/SkPDFPage.cpp

@@ -37,7 +37,7 @@ void SkPDFPage::finalizePage(SkPDFCatalog* catalog, bool firstPage,
 
 off_t SkPDFPage::getPageSize(SkPDFCatalog* catalog, off_t fileOffset) {
     SkASSERT(fContentStream.get() != NULL);
-    catalog->setFileOffset(fContentStream.get(), fileOffset);
+    catalog->setFileOffset(fContentStream.get(), (size_t) fileOffset);
     return fContentStream->getOutputSize(catalog, true);
 }