Font variations.

gm/fontscalerdistortable.cpp

 /*
- * Copyright 2011 Google Inc.
+ * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 #include "gm.h"
+#include "Resources.h"
+#include "SkFixed.h"
+#include "SkFontDescriptor.h"
+#include "SkFontMgr.h"
 #include "SkTypeface.h"
 
 namespace skiagm {
 
-class FontScalerGM : public GM {
+class FontScalerDistortableGM : public GM {
 public:
-    FontScalerGM() {
+    FontScalerDistortableGM() {
         this->setBGColor(0xFFFFFFFF);
     }
 
-    virtual ~FontScalerGM() {
-    }
+    virtual ~FontScalerDistortableGM() { }
 
 protected:
 
     SkString onShortName() override {
-        return SkString("fontscaler");
+        return SkString("fontscalerdistortable");
     }
 
     SkISize onISize() override {
-        return SkISize::Make(1450, 750);
+        return SkISize::Make(550, 700);
     }
 
-    static void rotate_about(SkCanvas* canvas,
-                             SkScalar degrees,
-                             SkScalar px, SkScalar py) {
+    static void rotate_about(SkCanvas* canvas, SkScalar degrees, SkScalar px, SkScalar py) {
         canvas->translate(px, py);
         canvas->rotate(degrees);
         canvas->translate(-px, -py);
     }
 
     void onDraw(SkCanvas* canvas) override {
         SkPaint paint;
-
         paint.setAntiAlias(true);
         paint.setLCDRenderText(true);
-        //With freetype the default (normal hinting) can be really ugly.
-        //Most distros now set slight (vertical hinting only) in any event.
-        paint.setHinting(SkPaint::kSlight_Hinting);
-        sk_tool_utils::set_portable_typeface(&paint, "Times Roman", SkTypeface::kNormal);
 
-        const char* text = "Hamburgefons ooo mmm";
+        SkAutoTDelete<SkStreamAsset> distortable(GetResourceAsStream("/fonts/Distortable.ttf"));
+        if (!distortable) {
+            return;
+        }
+        const char* text = "abc";
         const size_t textLen = strlen(text);
 
         for (int j = 0; j < 2; ++j) {
-            // This used to do 6 iterations but it causes the N4 to crash in the MSAA4 config.
             for (int i = 0; i < 5; ++i) {
                 SkScalar x = SkIntToScalar(10);
                 SkScalar y = SkIntToScalar(20);
 
+                SkFixed axis = SkDoubleToFixed(0.5 + (5*j + i) * ((2.0 - 0.5) / (2 * 5)));
+                SkAutoTUnref<SkTypeface> typeface(SkTypeface::CreateFromFontData(
+                    new SkFontData(distortable->duplicate(), 0, &axis, 1)));
+                paint.setTypeface(typeface);
+
                 SkAutoCanvasRestore acr(canvas, true);
-                canvas->translate(SkIntToScalar(50 + i * 230),
-                                  SkIntToScalar(20));
+                canvas->translate(SkIntToScalar(30 + i * 100), SkIntToScalar(20));
                 rotate_about(canvas, SkIntToScalar(i * 5), x, y * 10);
 
                 {
                     SkPaint p;
                     p.setAntiAlias(true);
                     SkRect r;
                     r.set(x - SkIntToScalar(3), SkIntToScalar(15),
                           x - SkIntToScalar(1), SkIntToScalar(280));
                     canvas->drawRect(r, p);
                 }
 
                 for (int ps = 6; ps <= 22; ps++) {
                     paint.setTextSize(SkIntToScalar(ps));
                     canvas->drawText(text, textLen, x, y, paint);
                     y += paint.getFontMetrics(NULL);
                 }
             }
             canvas->translate(0, SkIntToScalar(360));
             paint.setSubpixelText(true);
         }
     }
 
 private:
     typedef GM INHERITED;
 };
 
 //////////////////////////////////////////////////////////////////////////////
 
-static GM* MyFactory(void*) { return new FontScalerGM; }
+static GM* MyFactory(void*) { return new FontScalerDistortableGM; }
 static GMRegistry reg(MyFactory);
 
 }