remove dead code after HQ change

src/core/SkBitmapFilter.cpp

Index: src/core/SkBitmapFilter.cpp
diff --git a/src/core/SkBitmapFilter.cpp b/src/core/SkBitmapFilter.cpp
index fce4c1d5fbc2f1c9b913e89515bea1481c33e013..82494d9bbecc6b46432c2541f7d11e64e123e49c 100644
--- a/src/core/SkBitmapFilter.cpp
+++ b/src/core/SkBitmapFilter.cpp
@@ -22,86 +22,6 @@
 // the image is rotated or has some other complex transformation applied.
 // Scaled images will usually be rescaled directly before rasterization.
 
-namespace {
-
-template <typename Color, typename ColorPacker>
-void highQualityFilter(ColorPacker pack, const SkBitmapProcState& s, int x, int y, Color* SK_RESTRICT colors, int count) {
-    const int maxX = s.fBitmap->width();
-    const int maxY = s.fBitmap->height();
-    SkAutoTMalloc<SkScalar> xWeights(maxX);
-    const SkBitmapFilter* filter = s.getBitmapFilter();
-
-    while (count-- > 0) {
-        SkPoint srcPt;
-        s.fInvProc(s.fInvMatrix, x + 0.5f,
-                    y + 0.5f, &srcPt);
-        srcPt.fX -= SK_ScalarHalf;
-        srcPt.fY -= SK_ScalarHalf;
-
-        SkScalar weight = 0;
-        SkScalar fr = 0, fg = 0, fb = 0, fa = 0;
-
-        int y0 = SkClampMax(SkScalarCeilToInt(srcPt.fY - filter->width()), maxY);
-        int y1 = SkClampMax(SkScalarFloorToInt(srcPt.fY + filter->width() + 1), maxY);
-        int x0 = SkClampMax(SkScalarCeilToInt(srcPt.fX - filter->width()), maxX);
-        int x1 = SkClampMax(SkScalarFloorToInt(srcPt.fX + filter->width()) + 1, maxX);
-
-        for (int srcX = x0; srcX < x1 ; srcX++) {
-            // Looking these up once instead of each loop is a ~15% speedup.
-            xWeights[srcX - x0] = filter->lookupScalar((srcPt.fX - srcX));
-        }
-
-        for (int srcY = y0; srcY < y1; srcY++) {
-            SkScalar yWeight = filter->lookupScalar((srcPt.fY - srcY));
-
-            for (int srcX = x0; srcX < x1 ; srcX++) {
-                SkScalar xWeight = xWeights[srcX - x0];
-
-                SkScalar combined_weight = SkScalarMul(xWeight, yWeight);
-                weight += combined_weight;
-
-                SkPMColor c = *s.fBitmap->getAddr32(srcX, srcY);
-                if (!c) {
-                    continue;
-                }
-                fr += combined_weight * SkGetPackedR32(c);
-                fg += combined_weight * SkGetPackedG32(c);
-                fb += combined_weight * SkGetPackedB32(c);
-                fa += combined_weight * SkGetPackedA32(c);
-            }
-        }
-
-        fr = SkScalarDiv(fr, weight);
-        fg = SkScalarDiv(fg, weight);
-        fb = SkScalarDiv(fb, weight);
-        fa = SkScalarDiv(fa, weight);
-
-        int a = SkClampMax(SkScalarRoundToInt(fa), 255);
-        int r = SkClampMax(SkScalarRoundToInt(fr), a);
-        int g = SkClampMax(SkScalarRoundToInt(fg), a);
-        int b = SkClampMax(SkScalarRoundToInt(fb), a);
-
-        *colors++ = pack(a, r, g, b);
-
-        x++;
-    }
-}
-
-uint16_t PackTo565(int /*a*/, int r, int g, int b) {
-    return SkPack888ToRGB16(r, g, b);
-}
-
-}  // namespace
-
-void highQualityFilter32(const SkBitmapProcState& s, int x, int y, SkPMColor* SK_RESTRICT colors, int count) {
-    highQualityFilter(&SkPackARGB32, s, x, y, colors, count);
-}
-
-void highQualityFilter16(const SkBitmapProcState& s, int x, int y, uint16_t* SK_RESTRICT colors, int count) {
-    highQualityFilter(&PackTo565, s, x, y, colors, count);
-}
-
-
 SK_CONF_DECLARE(const char *, c_bitmapFilter, "bitmap.filter", "mitchell", "Which scanline bitmap filter to use [mitchell, lanczos, hamming, gaussian, triangle, box]");
 
 SkBitmapFilter *SkBitmapFilter::Allocate() {
@@ -124,35 +44,3 @@ SkBitmapFilter *SkBitmapFilter::Allocate() {
     return NULL;
 }
 
-bool SkBitmapProcState::setBitmapFilterProcs() {
-    if (fFilterLevel != SkPaint::kHigh_FilterLevel) {
-        return false;
-    }
-
-    if (fAlphaScale != 256) {
-        return false;
-    }
-
-    // TODO: consider supporting other colortypes (e.g. 565, A8)
-    if (fBitmap->colorType() != kN32_SkColorType) {
-        return false;
-    }
-
-    // TODO: consider supporting repeat and mirror
-    if (SkShader::kClamp_TileMode != fTileModeX || SkShader::kClamp_TileMode != fTileModeY) {
-        return false;
-    }
-
-    // TODO: is this right?  do we want fBitmapFilter allocated even if we can't set shader procs?
-    if (fInvType & (SkMatrix::kAffine_Mask | SkMatrix::kScale_Mask)) {
-        fBitmapFilter = SkBitmapFilter::Allocate();
-    }
-
-    if (fInvType & SkMatrix::kScale_Mask) {
-        fShaderProc32 = highQualityFilter32;
-        fShaderProc16 = highQualityFilter16;
-        return true;
-    } else {
-        return false;
-    }
-}