remove unused Kernel33MaskFilter

R=robertphillips@google.com
TBR=robertphilips@google.com

Author: reed@google.com

Review URL: https://codereview.chromium.org/280233002

git-svn-id: http://skia.googlecode.com/svn/trunk@14691 2bbb7eff-a529-9590-31e7-b0007b416f81

11 files changed, 3 insertions, 305 deletions

diff --git a/experimental/webtry/templates/template.cpp b/experimental/webtry/templates/template.cpp
index 6faf1489ca..5b017f0dff 100644
--- a/experimental/webtry/templates/template.cpp
+++ b/experimental/webtry/templates/template.cpp
@@ -74,7 +74,6 @@
 #include "SkImage.h"
 #include "SkImageInfo.h"
 #include "SkInstCnt.h"
-#include "SkKernel33MaskFilter.h"
 #include "SkLayerDrawLooper.h"
 #include "SkLayerRasterizer.h"
 #include "SkLerpXfermode.h"
diff --git a/gyp/effects.gypi b/gyp/effects.gypi
index 71592ed977..40e8787e72 100644
--- a/gyp/effects.gypi
+++ b/gyp/effects.gypi
@@ -35,7 +35,6 @@
     '<(skia_src_path)/effects/SkEmbossMaskFilter.cpp',
     '<(skia_src_path)/effects/SkGpuBlurUtils.h',
     '<(skia_src_path)/effects/SkGpuBlurUtils.cpp',
-    '<(skia_src_path)/effects/SkKernel33MaskFilter.cpp',
     '<(skia_src_path)/effects/SkLayerDrawLooper.cpp',
     '<(skia_src_path)/effects/SkLayerRasterizer.cpp',
     '<(skia_src_path)/effects/SkLerpXfermode.cpp',
diff --git a/gyp/public_headers.gypi b/gyp/public_headers.gypi
index d14eb0b259..bffcf7d23b 100644
--- a/gyp/public_headers.gypi
+++ b/gyp/public_headers.gypi
@@ -83,7 +83,6 @@
       'effects/SkBicubicImageFilter.h',
       'effects/SkPorterDuff.h',
       'effects/SkBlurImageFilter.h',
-      'effects/SkKernel33MaskFilter.h',
       'effects/SkTableMaskFilter.h',
       'effects/SkAvoidXfermode.h',
       'effects/SkBitmapSource.h',
diff --git a/include/effects/SkKernel33MaskFilter.h b/include/effects/SkKernel33MaskFilter.h
deleted file mode 100644
index 3ec3cc9e50..0000000000
--- a/include/effects/SkKernel33MaskFilter.h
+++ /dev/null
@@ -1,69 +0,0 @@
-/*
- * Copyright 2008 The Android Open Source Project
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkKernel33MaskFilter_DEFINED
-#define SkKernel33MaskFilter_DEFINED
-
-#include "SkMaskFilter.h"
-
-class SK_API SkKernel33ProcMaskFilter : public SkMaskFilter {
-public:
-    virtual uint8_t computeValue(uint8_t* const* srcRows) const = 0;
-
-    virtual SkMask::Format getFormat() const SK_OVERRIDE;
-    virtual bool filterMask(SkMask*, const SkMask&, const SkMatrix&,
-                            SkIPoint*) const SK_OVERRIDE;
-
-    SK_TO_STRING_OVERRIDE()
-
-protected:
-    SkKernel33ProcMaskFilter(unsigned percent256 = 256)
-        : fPercent256(percent256) {}
-    SkKernel33ProcMaskFilter(SkReadBuffer& rb);
-    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
-
-private:
-    int fPercent256;
-
-    typedef SkMaskFilter INHERITED;
-};
-
-///////////////////////////////////////////////////////////////////////////////
-
-class SK_API SkKernel33MaskFilter : public SkKernel33ProcMaskFilter {
-public:
-    static SkKernel33MaskFilter* Create(const int coeff[3][3], int shift, int percent256 = 256) {
-        return SkNEW_ARGS(SkKernel33MaskFilter, (coeff, shift, percent256));
-    }
-
-    // override from SkKernel33ProcMaskFilter
-    virtual uint8_t computeValue(uint8_t* const* srcRows) const SK_OVERRIDE;
-
-    SK_TO_STRING_OVERRIDE()
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(SkKernel33MaskFilter)
-
-protected:
-#ifdef SK_SUPPORT_LEGACY_PUBLICEFFECTCONSTRUCTORS
-public:
-#endif
-    SkKernel33MaskFilter(const int coeff[3][3], int shift, int percent256 = 256)
-            : SkKernel33ProcMaskFilter(percent256) {
-        memcpy(fKernel, coeff, 9 * sizeof(int));
-        fShift = shift;
-    }
-
-private:
-    int fKernel[3][3];
-    int fShift;
-
-    SkKernel33MaskFilter(SkReadBuffer& rb);
-    virtual void flatten(SkWriteBuffer&) const SK_OVERRIDE;
-
-    typedef SkKernel33ProcMaskFilter INHERITED;
-};
-
-#endif
diff --git a/samplecode/SampleEmboss.cpp b/samplecode/SampleEmboss.cpp
index 1810a09f76..f219cdda24 100644
--- a/samplecode/SampleEmboss.cpp
+++ b/samplecode/SampleEmboss.cpp
@@ -14,7 +14,6 @@
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
-#include "SkKernel33MaskFilter.h"
 #include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRegion.h"
diff --git a/samplecode/SampleHairline.cpp b/samplecode/SampleHairline.cpp
index 4ac8b6255a..85ecc03b0b 100644
--- a/samplecode/SampleHairline.cpp
+++ b/samplecode/SampleHairline.cpp
@@ -12,7 +12,6 @@
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
-#include "SkKernel33MaskFilter.h"
 #include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRegion.h"
diff --git a/samplecode/SampleLines.cpp b/samplecode/SampleLines.cpp
index c6f7ad98d9..edb52fe0b5 100644
--- a/samplecode/SampleLines.cpp
+++ b/samplecode/SampleLines.cpp
@@ -12,7 +12,6 @@
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
-#include "SkKernel33MaskFilter.h"
 #include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRegion.h"
diff --git a/samplecode/SamplePoints.cpp b/samplecode/SamplePoints.cpp
index 6fb43afc45..47a8b17710 100644
--- a/samplecode/SamplePoints.cpp
+++ b/samplecode/SamplePoints.cpp
@@ -11,7 +11,6 @@
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
-#include "SkKernel33MaskFilter.h"
 #include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRegion.h"
diff --git a/samplecode/SampleText.cpp b/samplecode/SampleText.cpp
index 56fa022b22..c56ebc8b90 100644
--- a/samplecode/SampleText.cpp
+++ b/samplecode/SampleText.cpp
@@ -13,7 +13,6 @@
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
-#include "SkKernel33MaskFilter.h"
 #include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRegion.h"
@@ -28,77 +27,6 @@
 #include "SkStream.h"
 #include "SkXMLParser.h"
 
-class ReduceNoise : public SkKernel33ProcMaskFilter {
-public:
-    ReduceNoise(int percent256) : SkKernel33ProcMaskFilter(percent256) {}
-    virtual uint8_t computeValue(uint8_t* const* srcRows) const {
-        int c = srcRows[1][1];
-        int min = 255, max = 0;
-        for (int i = 0; i < 3; i++)
-            for (int j = 0; j < 3; j++)
-                if (i != 1 || j != 1)
-                {
-                    int v = srcRows[i][j];
-                    if (max < v)
-                        max = v;
-                    if  (min > v)
-                        min = v;
-                }
-        if (c > max) c = max;
-    //    if (c < min) c = min;
-        return c;
-    }
-
-#ifndef SK_IGNORE_TO_STRING
-    virtual void toString(SkString* str) const SK_OVERRIDE {
-        str->append("ReduceNoise: (");
-        this->INHERITED::toString(str);
-        str->append(")");
-    }
-#endif
-
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(ReduceNoise)
-
-private:
-    ReduceNoise(SkReadBuffer& rb) : SkKernel33ProcMaskFilter(rb) {}
-
-    typedef SkKernel33ProcMaskFilter INHERITED;
-};
-
-class Darken : public SkKernel33ProcMaskFilter {
-public:
-    Darken(int percent256) : SkKernel33ProcMaskFilter(percent256) {}
-    virtual uint8_t computeValue(uint8_t* const* srcRows) const {
-        int c = srcRows[1][1];
-        float f = c / 255.f;
-
-        if (c >= 0) {
-            f = sqrtf(f);
-        } else {
-            f *= f;
-        }
-        SkASSERT(f >= 0 && f <= 1);
-        return (int)(f * 255);
-    }
-
-#ifndef SK_IGNORE_TO_STRING
-    virtual void toString(SkString* str) const SK_OVERRIDE {
-        str->append("Darken: (");
-        this->INHERITED::toString(str);
-        str->append(")");
-    }
-#endif
-
-    SK_DECLARE_PUBLIC_FLATTENABLE_DESERIALIZATION_PROCS(Darken)
-
-private:
-    Darken(SkReadBuffer& rb) : SkKernel33ProcMaskFilter(rb) {}
-
-    typedef SkKernel33ProcMaskFilter INHERITED;
-};
-
-static SkMaskFilter* makemf() { return new Darken(0x30); }
-
 static void test_breakText() {
     SkPaint paint;
     const char* text = "sdfkljAKLDFJKEWkldfjlk#$%&sdfs.dsj";
@@ -213,9 +141,8 @@ static const struct {
     { "Subpixel", SkPaint::kSubpixelText_Flag, true }
 };
 
-static void DrawTheText(SkCanvas* canvas, const char text[], size_t length,
-                        SkScalar x, SkScalar y, const SkPaint& paint,
-                        SkScalar clickX, SkMaskFilter* mf) {
+static void DrawTheText(SkCanvas* canvas, const char text[], size_t length, SkScalar x, SkScalar y,
+                        const SkPaint& paint, SkScalar clickX) {
     SkPaint p(paint);
 
 #if 0
@@ -238,7 +165,6 @@ static void DrawTheText(SkCanvas* canvas, const char text[], size_t length,
 
 #ifdef SK_DEBUG
     if (true) {
-    //    p.setMaskFilter(mf);
         p.setSubpixelText(false);
         p.setLinearText(true);
         x += SkIntToScalar(180);
@@ -250,18 +176,12 @@ static void DrawTheText(SkCanvas* canvas, const char text[], size_t length,
 class TextSpeedView : public SampleView {
 public:
     TextSpeedView() {
-        fMF = makemf();
-
         fHints = 0;
         fClickX = 0;
 
         test_breakText();
     }
 
-    virtual ~TextSpeedView() {
-        SkSafeUnref(fMF);
-    }
-
 protected:
     // overrides from SkEventSink
     virtual bool onQuery(SkEvent* evt) {
@@ -326,8 +246,7 @@ protected:
             for (SkScalar dx = 0; dx <= SkIntToScalar(3)/4;
                                             dx += SkIntToScalar(1) /* /4 */) {
                 y += paint.getFontSpacing();
-                DrawTheText(canvas, text, length, SkIntToScalar(20) + dx, y,
-                            paint, fClickX, fMF);
+                DrawTheText(canvas, text, length, SkIntToScalar(20) + dx, y, paint, fClickX);
             }
         }
         if (gHints[index].fFlushCache) {
@@ -349,7 +268,6 @@ protected:
 private:
     int fHints;
     SkScalar fClickX;
-    SkMaskFilter* fMF;
 
     typedef SampleView INHERITED;
 };
diff --git a/samplecode/SampleXfermodesBlur.cpp b/samplecode/SampleXfermodesBlur.cpp
index 620de54e0f..bb9c272bf8 100644
--- a/samplecode/SampleXfermodesBlur.cpp
+++ b/samplecode/SampleXfermodesBlur.cpp
@@ -13,7 +13,6 @@
 #include "SkGradientShader.h"
 #include "SkGraphics.h"
 #include "SkImageDecoder.h"
-#include "SkKernel33MaskFilter.h"
 #include "SkPath.h"
 #include "SkRandom.h"
 #include "SkRegion.h"
diff --git a/src/effects/SkKernel33MaskFilter.cpp b/src/effects/SkKernel33MaskFilter.cpp
deleted file mode 100644
index 438e81b031..0000000000
--- a/src/effects/SkKernel33MaskFilter.cpp
+++ /dev/null
@@ -1,143 +0,0 @@
-
-/*
- * 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 "SkKernel33MaskFilter.h"
-#include "SkColorPriv.h"
-#include "SkReadBuffer.h"
-#include "SkWriteBuffer.h"
-#include "SkString.h"
-
-SkMask::Format SkKernel33ProcMaskFilter::getFormat() const {
-    return SkMask::kA8_Format;
-}
-
-bool SkKernel33ProcMaskFilter::filterMask(SkMask* dst, const SkMask& src,
-                                      const SkMatrix&, SkIPoint* margin) const {
-    // margin???
-    dst->fImage = NULL;
-    dst->fBounds = src.fBounds;
-    dst->fBounds.inset(-1, -1);
-    dst->fFormat = SkMask::kA8_Format;
-
-    if (NULL == src.fImage) {
-        return true;
-    }
-
-    dst->fRowBytes = dst->fBounds.width();
-    size_t size = dst->computeImageSize();
-    if (0 == size) {
-        return false;   // too big to allocate, abort
-    }
-    dst->fImage = SkMask::AllocImage(size);
-
-    const int h = src.fBounds.height();
-    const int w = src.fBounds.width();
-    const int srcRB = src.fRowBytes;
-    const uint8_t* srcImage = src.fImage;
-    uint8_t* dstImage = dst->fImage;
-
-    uint8_t* srcRows[3];
-    uint8_t storage[3][3];
-
-    srcRows[0] = storage[0];
-    srcRows[1] = storage[1];
-    srcRows[2] = storage[2];
-
-    unsigned scale = fPercent256;
-
-    for (int y = -1; y <= h; y++) {
-        uint8_t* dstRow = dstImage;
-        for (int x = -1; x <= w; x++) {
-            memset(storage, 0, sizeof(storage));
-            uint8_t* storagePtr = &storage[0][0];
-
-            for (int ky = y - 1; ky <= y + 1; ky++) {
-                const uint8_t* srcRow = srcImage + ky * srcRB;  // may be out-of-range
-                for (int kx = x - 1; kx <= x + 1; kx++) {
-                    if ((unsigned)ky < (unsigned)h && (unsigned)kx < (unsigned)w) {
-                        *storagePtr = srcRow[kx];
-                    }
-                    storagePtr++;
-                }
-            }
-            int value = this->computeValue(srcRows);
-
-            if (scale < 256) {
-                value = SkAlphaBlend(value, srcRows[1][1], scale);
-            }
-            *dstRow++ = SkToU8(value);
-        }
-        dstImage += dst->fRowBytes;
-    }
-    return true;
-}
-
-void SkKernel33ProcMaskFilter::flatten(SkWriteBuffer& wb) const {
-    this->INHERITED::flatten(wb);
-    wb.writeInt(fPercent256);
-}
-
-SkKernel33ProcMaskFilter::SkKernel33ProcMaskFilter(SkReadBuffer& rb)
-        : SkMaskFilter(rb) {
-    fPercent256 = rb.readInt();
-}
-
-#ifndef SK_IGNORE_TO_STRING
-void SkKernel33ProcMaskFilter::toString(SkString* str) const {
-    str->appendf("percent256: %d, ", fPercent256);
-}
-#endif
-
-///////////////////////////////////////////////////////////////////////////////
-
-uint8_t SkKernel33MaskFilter::computeValue(uint8_t* const* srcRows) const {
-    int value = 0;
-
-    for (int i = 0; i < 3; i++) {
-        for (int j = 0; j < 3; j++) {
-            value += fKernel[i][j] * srcRows[i][j];
-        }
-    }
-
-    value >>= fShift;
-
-    if (value < 0) {
-        value = 0;
-    } else if (value > 255) {
-        value = 255;
-    }
-    return (uint8_t)value;
-}
-
-void SkKernel33MaskFilter::flatten(SkWriteBuffer& wb) const {
-    this->INHERITED::flatten(wb);
-    wb.writeIntArray(&fKernel[0][0], 9);
-    wb.writeInt(fShift);
-}
-
-SkKernel33MaskFilter::SkKernel33MaskFilter(SkReadBuffer& rb)
-        : SkKernel33ProcMaskFilter(rb) {
-    SkDEBUGCODE(bool success = )rb.readIntArray(&fKernel[0][0], 9);
-    SkASSERT(success);
-    fShift = rb.readInt();
-}
-
-#ifndef SK_IGNORE_TO_STRING
-void SkKernel33MaskFilter::toString(SkString* str) const {
-    str->append("SkKernel33MaskFilter: (");
-
-    str->appendf("kernel: (%d, %d, %d, %d, %d, %d, %d, %d, %d), ",
-            fKernel[0][0], fKernel[0][1], fKernel[0][2],
-            fKernel[1][0], fKernel[1][1], fKernel[1][2],
-            fKernel[2][0], fKernel[2][1], fKernel[2][2]);
-    str->appendf("shift: %d, ", fShift);
-
-    this->INHERITED::toString(str);
-
-    str->append(")");
-}
-#endif