Font variations.

tests/SerializationTest.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "Resources.h"
 #include "SkBitmapSource.h"
 #include "SkCanvas.h"
+#include "SkFixed.h"
+#include "SkFontDescriptor.h"
 #include "SkMallocPixelRef.h"
 #include "SkOSFile.h"
 #include "SkPictureRecorder.h"
 #include "SkTableColorFilter.h"
 #include "SkTemplates.h"
 #include "SkTypeface.h"
 #include "SkWriteBuffer.h"
 #include "SkValidatingReadBuffer.h"
 #include "SkXfermodeImageFilter.h"
 #include "Test.h"
@@ skipping 287 matching lines @@
 
     int pixelErrors = 0;
     for (int y = 0; y < b2.height(); ++y) {
         for (int x = 0; x < b2.width(); ++x) {
             if (b1.getColor(x, y) != b2.getColor(x, y))
                 ++pixelErrors;
         }
     }
     REPORTER_ASSERT(reporter, 0 == pixelErrors);
 }
-
-static void TestPictureTypefaceSerialization(skiatest::Reporter* reporter) {
-    // Load typeface form file to test CreateFromFile with index.
-    SkString filename = GetResourcePath("/fonts/test.ttc");
-    SkTypeface* typeface = SkTypeface::CreateFromFile(filename.c_str(), 1);
-    if (!typeface) {
-        SkDebugf("Could not run fontstream test because test.ttc not found.");
-        return;
-    }
-
-    // Create a paint with the typeface we loaded.
+static void serialize_and_compare_typeface(SkTypeface* typeface, const char* text,
+                                           skiatest::Reporter* reporter)
+{
+    // Create a paint with the typeface.
     SkPaint paint;
     paint.setColor(SK_ColorGRAY);
     paint.setTextSize(SkIntToScalar(30));
-    SkSafeUnref(paint.setTypeface(typeface));
+    paint.setTypeface(typeface);
 
     // Paint some text.
     SkPictureRecorder recorder;
     SkIRect canvasRect = SkIRect::MakeWH(kBitmapSize, kBitmapSize);
     SkCanvas* canvas = recorder.beginRecording(SkIntToScalar(canvasRect.width()), 
                                                SkIntToScalar(canvasRect.height()), 
                                                NULL, 0);
     canvas->drawColor(SK_ColorWHITE);
-    canvas->drawText("A!", 2, 24, 32, paint);
+    canvas->drawText(text, 2, 24, 32, paint);
     SkAutoTUnref<SkPicture> picture(recorder.endRecording());
 
     // Serlialize picture and create its clone from stream.
     SkDynamicMemoryWStream stream;
     picture->serialize(&stream);
     SkAutoTDelete<SkStream> inputStream(stream.detachAsStream());
     SkAutoTUnref<SkPicture> loadedPicture(SkPicture::CreateFromStream(inputStream.get()));
 
     // Draw both original and clone picture and compare bitmaps -- they should be identical.
     SkBitmap origBitmap = draw_picture(*picture);
     SkBitmap destBitmap = draw_picture(*loadedPicture);
     compare_bitmaps(reporter, origBitmap, destBitmap);
 }
 
+static void TestPictureTypefaceSerialization(skiatest::Reporter* reporter) {
+    {
+        // Load typeface from file to test CreateFromFile with index.
+        SkString filename = GetResourcePath("/fonts/test.ttc");
+        SkAutoTUnref<SkTypeface> typeface(SkTypeface::CreateFromFile(filename.c_str(), 1));
+        if (!typeface) {
+            SkDebugf("Could not run fontstream test because test.ttc not found.");
+        } else {
+            serialize_and_compare_typeface(typeface, "A!", reporter);
+        }
+    }
+
+    {
+        // Load typeface as stream to create with axis settings.
+        SkAutoTDelete<SkStreamAsset> distortable(GetResourceAsStream("/fonts/Distortable.ttf"));
+        if (!distortable) {
+            SkDebugf("Could not run fontstream test because Distortable.ttf not found.");
+        } else {
+            SkFixed axis = SK_FixedSqrt2;
+            SkFontData fontData(distortable.detach(), 0, 1, &axis);
+            SkAutoTUnref<SkTypeface> typeface(SkTypeface::CreateFromFontData(&fontData));
+            if (!typeface) {
+                SkDebugf("Could not run fontstream test because Distortable.ttf not created.");
+            } else {
+                serialize_and_compare_typeface(typeface, "abc", reporter);
+            }
+        }
+    }
+}
+
 static void setup_bitmap_for_canvas(SkBitmap* bitmap) {
     bitmap->allocN32Pixels(kBitmapSize, kBitmapSize);
 }
 
 static void make_checkerboard_bitmap(SkBitmap& bitmap) {
     setup_bitmap_for_canvas(&bitmap);
 
     SkCanvas canvas(bitmap);
     canvas.clear(0x00000000);
     SkPaint darkPaint;
@@ skipping 145 matching lines @@
 
         // Deserialize picture
         SkValidatingReadBuffer reader(static_cast<void*>(data.get()), size);
         SkAutoTUnref<SkPicture> readPict(
             SkPicture::CreateFromBuffer(reader));
         REPORTER_ASSERT(reporter, readPict.get());
     }
 
     TestPictureTypefaceSerialization(reporter);
 }