Remove SkBitmapAlphaThresholdShader

gm/bitmapalphathreshold.cpp

Index: gm/bitmapalphathreshold.cpp
diff --git a/gm/bitmapalphathreshold.cpp b/gm/bitmapalphathreshold.cpp
deleted file mode 100644
index e1413969f25eca9fc2d2f1663b265c4a649e8faa..0000000000000000000000000000000000000000
--- a/gm/bitmapalphathreshold.cpp
+++ /dev/null
@@ -1,144 +0,0 @@
-/*
- * 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 "gm.h"
-#include "SkGradientShader.h"
-#include "SkBitmapAlphaThresholdShader.h"
-#include "SkTArray.h"
-#include "SkParsePath.h"
-
-class BitmapAlphaThresholdGM : public skiagm::GM {
-public:
-    BitmapAlphaThresholdGM() {
-        this->setBGColor(0xFF000000);
-    }
-
-private:
-    virtual uint32_t onGetFlags() const SK_OVERRIDE {
-        // narrow this flags when the shader has a CPU implementation and
-        // when it serializes.
-        return
-            kSkipPDF_Flag               |
-            kSkipPicture_Flag           |
-            kSkipPipe_Flag              |
-            kSkipPipeCrossProcess_Flag  |
-            kSkipTiled_Flag             |
-            kSkip565_Flag               |
-            kSkipScaledReplay_Flag      |
-            kSkipPDFRasterization_Flag  |
-
-            kGPUOnly_Flag;
-    }
-
-    virtual void onOnceBeforeDraw() SK_OVERRIDE {
-        fBM.setConfig(SkBitmap::kARGB_8888_Config, 100, 100);
-        if (!fBM.allocPixels()) {
-            return;
-        }
-        SkCanvas canvas(fBM);
-        SkPoint pts[] = { {0, 0}, {SkIntToScalar(fBM.width()), SkIntToScalar(fBM.height())} };
-        SkColor colors[] = {0x00000000, 0xffffffff};
-        SkShader* grad = SkGradientShader::CreateLinear(pts, colors, NULL, 2,
-                                                        SkShader::kClamp_TileMode);
-        SkPaint gradPaint;
-        gradPaint.setShader(grad)->unref();
-        gradPaint.setXfermodeMode(SkXfermode::kSrc_Mode);
-        canvas.drawPaint(gradPaint);
-
-        // Construct the region used as a mask.
-        SkRegion bmpBoundsClip;
-        bmpBoundsClip.setRect(0, 0, fBM.width(), fBM.height());
-        SkPath circlePath;
-        SkScalar radius = SkScalarSqrt(SkIntToScalar(fBM.width() * fBM.height())) / 2;
-        circlePath.addCircle(SkIntToScalar(fBM.width() / 2),
-                             SkIntToScalar(fBM.height() / 2),
-                             radius);
-        fMask.setPath(circlePath, bmpBoundsClip);
-
-        SkPath batPath;
-        SkParsePath::FromSVGString(
-        "M305.214,374.779c2.463,0,3.45,0.493,3.45,0.493l1.478-6.241c0,0,1.15,4.763,1.643,9.034"
-        "c0.493,4.271,8.048,1.479,14.454,0.164c6.405-1.314,7.72-11.662,7.72-11.662h59.294c0,0-35.807,10.841-26.772,34.656"
-        "c0,0-52.889-8.048-61.101,24.967h-0.001c-8.212-33.015-61.101-24.967-61.101-24.967c9.034-23.815-26.772-34.656-26.772-34.656"
-        "h59.294c0,0,1.314,10.348,7.719,11.662c6.406,1.314,13.962,4.106,14.454-0.164c0.493-4.271,1.643-9.034,1.643-9.034l1.479,6.241"
-        "c0,0,0.985-0.493,3.449-0.493H305.214L305.214,374.779z",
-        &batPath);
-
-        SkMatrix matrix;
-        matrix.setTranslate(-208, -280);
-        matrix.postScale(radius / 100, radius / 100);
-        batPath.transform(matrix, &batPath);
-        SkRegion batRegion;
-        batRegion.setPath(batPath, bmpBoundsClip);
-
-        fMask.op(batRegion, SkRegion::kDifference_Op);
-    }
-
-    virtual SkString onShortName() SK_OVERRIDE {
-        return SkString("bat");
-    }
-
-    virtual SkISize onISize() SK_OVERRIDE {
-        return SkISize::Make(518, 735);
-    }
-
-    virtual void onDraw(SkCanvas* canvas) SK_OVERRIDE {
-
-        SkTArray<SkMatrix> lms;
-        lms.push_back().reset();
-        lms.push_back().setScale(SK_Scalar1 / 2, SK_Scalar1);
-        lms.push_back().setScale(SK_Scalar1, 2 * SK_Scalar1);
-        lms.push_back().setRotate(-SK_Scalar1 * 30);
-        lms.push_back().setSkew(0, SK_Scalar1 / 5);
-
-        static const SkScalar kMargin = 5 * SK_Scalar1;
-        canvas->translate(kMargin, kMargin);
-        canvas->save();
-
-        static const U8CPU kThresholds[] = { 0x0, 0x08, 0x40, 0x80, 0xC0, 0xF0, 0xFF };
-
-        for (size_t i = 0; i < SK_ARRAY_COUNT(kThresholds); ++i) {
-            for (int j = 0; j < lms.count(); ++j) {
-                SkRect rect;
-                rect.fLeft = 0;
-                rect.fTop = 0;
-                rect.fRight = SkIntToScalar(fBM.width());
-                rect.fBottom = SkIntToScalar(fBM.height());
-
-                SkShader* thresh;
-                // This SkShader currently only has a GPU implementation.
-                if (canvas->getDevice()->accessRenderTarget()) {
-                    thresh = SkBitmapAlphaThresholdShader::Create(fBM, fMask, kThresholds[i]);
-                } else {
-                    thresh = SkShader::CreateBitmapShader(fBM, SkShader::kClamp_TileMode,
-                                                               SkShader::kClamp_TileMode);
-                }
-
-                thresh->setLocalMatrix(lms[j]);
-
-                SkPaint paint;
-                paint.setShader(thresh)->unref();
-
-                canvas->drawRect(rect, paint);
-                canvas->translate(SkIntToScalar(fBM.width() + kMargin), 0);
-            }
-            canvas->restore();
-            canvas->translate(0, SkIntToScalar(fBM.height() + kMargin));
-            canvas->save();
-        }
-
-    }
-
-    SkBitmap    fBM;
-    SkRegion    fMask;
-
-    typedef skiagm::GM INHERITED;
-};
-
-//////////////////////////////////////////////////////////////////////////////
-
-DEF_GM( return new BitmapAlphaThresholdGM(); )