Revert of adding gm to use random scaler context

gm/textblobrandomfont.cpp

-/*
- * 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 "SkCanvas.h"
-#include "SkGradientShader.h"
-#include "SkStream.h"
-#include "SkSurface.h"
-#include "SkTextBlob.h"
-#include "SkTypeface.h"
-#include "../src/fonts/SkRandomScalerContext.h"
-
-#if SK_SUPPORT_GPU
-
-#include "GrContext.h"
-
-namespace skiagm {
-class TextBlobRandomFont : public GM {
-public:
-    // This gm tests that textblobs can be translated and scaled with a font that returns random
-    // but deterministic masks
-    TextBlobRandomFont() { }
-
-protected:
-    void onOnceBeforeDraw() override {
-        SkTextBlobBuilder builder;
-
-        const char* text = "The quick brown fox jumps over the lazy dog.";
-
-        // make textbloben
-        SkPaint paint;
-        paint.setTextSize(32);
-        paint.setLCDRenderText(true);
-
-        // Setup our random scaler context
-        SkAutoTUnref<SkTypeface> orig(sk_tool_utils::create_portable_typeface("sans-serif",
-                                                                              SkTypeface::kBold));
-        if (NULL == orig) {
-            orig.reset(SkTypeface::RefDefault());
-        }
-        SkAutoTUnref<SkTypeface> random(SkNEW_ARGS(SkRandomTypeface, (orig, paint, false)));
-        paint.setTypeface(random);
-
-        SkRect bounds;
-        paint.measureText(text, strlen(text), &bounds);
-
-        SkScalar yOffset = bounds.height();
-        sk_tool_utils::add_to_text_blob(&builder, text, paint, 0, 0);
-
-        // A8
-        paint.setSubpixelText(false);
-        paint.setLCDRenderText(false);
-        sk_tool_utils::add_to_text_blob(&builder, text, paint, 0, yOffset - 32);
-
-        // build
-        fBlob.reset(builder.build());
-    }
-
-    SkString onShortName() override {
-        return SkString("textblobrandomfont");
-    }
-
-    SkISize onISize() override {
-        return SkISize::Make(kWidth, kHeight);
-    }
-
-    void onDraw(SkCanvas* canvas) override {
-        // This GM exists to test a specific feature of the GPU backend.
-        if (NULL == canvas->getGrContext()) {
-            this->drawGpuOnlyMessage(canvas);
-            return;
-        }
-
-        canvas->drawColor(sk_tool_utils::color_to_565(SK_ColorWHITE));
-
-        SkImageInfo info = SkImageInfo::MakeN32Premul(kWidth, kHeight);
-        SkSurfaceProps props(0, kUnknown_SkPixelGeometry);
-        SkAutoTUnref<SkSurface> surface(canvas->newSurface(info, &props));
-        if (surface) {
-            SkPaint paint;
-            paint.setAntiAlias(true);
-
-            SkCanvas* c = surface->getCanvas();
-
-            int stride = SkScalarCeilToInt(fBlob->bounds().height() / 2) + 10;
-            int yOffset = stride;
-            for (int i = 0; i < 10; i++) {
-                // fiddle the canvas to force regen of textblobs
-                canvas->rotate(i % 2 ? 0.0f : -0.05f);
-                canvas->drawTextBlob(fBlob, 10.0f, SkIntToScalar(yOffset), paint);
-                yOffset += stride;
-
-                // This will draw as black boxes
-                c->drawTextBlob(fBlob, 10, SkIntToScalar(yOffset), paint);
-                surface->draw(canvas, 0, 0, nullptr);
-
-                // free gpu resources and verify
-                yOffset += stride;
-                canvas->getGrContext()->freeGpuResources();
-                canvas->drawTextBlob(fBlob, 10, SkIntToScalar(yOffset), paint);
-
-                yOffset += stride;
-            }
-
-        } else {
-            const char* text = "This test requires a surface";
-            size_t len = strlen(text);
-            SkPaint paint;
-            canvas->drawText(text, len, 10, 100, paint);
-        }
-    }
-
-private:
-    SkAutoTUnref<const SkTextBlob> fBlob;
-
-    static const int kWidth = 1000;
-    static const int kHeight = 1000;
-
-    typedef GM INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-DEF_GM( return SkNEW(TextBlobRandomFont); )
-}
-#endif