Revert of SkFontData to use smart pointers.

src/utils/mac/SkCreateCGImageRef.cpp

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkTypes.h"
 #if defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)
 
@@ skipping 158 matching lines @@
         CGContextScaleCTM(cg, 1, -1);
 
         CGContextDrawImage(cg, r, img);
 
         CGContextRestoreGState(cg);
 
         CGImageRelease(img);
     }
 }
 
+///////////////////////////////////////////////////////////////////////////////
+
+#include "SkStream.h"
+
+class SkAutoPDFRelease {
+public:
+    SkAutoPDFRelease(CGPDFDocumentRef doc) : fDoc(doc) {}
+    ~SkAutoPDFRelease() {
+        if (fDoc) {
+            CGPDFDocumentRelease(fDoc);
+        }
+    }
+private:
+    CGPDFDocumentRef fDoc;
+};
+#define SkAutoPDFRelease(...) SK_REQUIRE_LOCAL_VAR(SkAutoPDFRelease)
+
+bool SkPDFDocumentToBitmap(SkStream* stream, SkBitmap* output) {
+    CGDataProviderRef data = SkCreateDataProviderFromStream(stream);
+    if (nullptr == data) {
+        return false;
+    }
+
+    CGPDFDocumentRef pdf = CGPDFDocumentCreateWithProvider(data);
+    CGDataProviderRelease(data);
+    if (nullptr == pdf) {
+        return false;
+    }
+    SkAutoPDFRelease releaseMe(pdf);
+
+    CGPDFPageRef page = CGPDFDocumentGetPage(pdf, 1);
+    if (nullptr == page) {
+        return false;
+    }
+
+    CGRect bounds = CGPDFPageGetBoxRect(page, kCGPDFMediaBox);
+
+    int w = (int)CGRectGetWidth(bounds);
+    int h = (int)CGRectGetHeight(bounds);
+
+    SkBitmap bitmap;
+    if (!bitmap.tryAllocN32Pixels(w, h)) {
+        return false;
+    }
+    bitmap.eraseColor(SK_ColorWHITE);
+
+    size_t bitsPerComponent;
+    CGBitmapInfo info;
+    getBitmapInfo(bitmap, &bitsPerComponent, &info, nullptr);
+
+    CGColorSpaceRef cs = CGColorSpaceCreateDeviceRGB();
+    CGContextRef ctx = CGBitmapContextCreate(bitmap.getPixels(), w, h,
+                                             bitsPerComponent, bitmap.rowBytes(),
+                                             cs, info);
+    CGColorSpaceRelease(cs);
+
+    if (ctx) {
+        CGContextDrawPDFPage(ctx, page);
+        CGContextRelease(ctx);
+    }
+
+    output->swap(bitmap);
+    return true;
+}
+
 ///////////////////////////////////////////////////////////////////////////////////////////////////
 
 SK_API bool SkCopyPixelsFromCGImage(const SkImageInfo& info, size_t rowBytes, void* pixels,
                                     CGImageRef image) {
     CGBitmapInfo cg_bitmap_info = 0;
     size_t bitsPerComponent = 0;
     switch (info.colorType()) {
         case kRGBA_8888_SkColorType:
             bitsPerComponent = 8;
             cg_bitmap_info = ComputeCGAlphaInfo_RGBA(info.alphaType());
@@ skipping 50 matching lines @@
             if (SkBitmap::ComputeIsOpaque(tmp)) {
                 tmp.setAlphaType(kOpaque_SkAlphaType);
             }
     }
 
     *dst = tmp;
     return true;
 }
 
 #endif//defined(SK_BUILD_FOR_MAC) || defined(SK_BUILD_FOR_IOS)