Revert of use templates instead of macros to build blitters

src/core/SkBitmapProcState_matrix_template.h

-/*
- * Copyright 2013 Google Inc.
- *
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-#ifndef SkBitmapProcState_MatrixTemplates_DEFINED
-#define SkBitmapProcState_MatrixTemplates_DEFINED
-
-#include "SkMath.h"
-#include "SkMathPriv.h"
-
-template <typename TileProc, bool tryDecal>
-void NoFilterProc_Scale(const SkBitmapProcState& s, uint32_t xy[],
-                        int count, int x, int y) {
-    SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask |
-                             SkMatrix::kScale_Mask)) == 0);
-
-    // we store y, x, x, x, x, x
-
-    const unsigned maxX = s.fBitmap->width() - 1;
-    SkFractionalInt fx;
-    {
-        SkPoint pt;
-        s.fInvProc(s.fInvMatrix, SkIntToScalar(x) + SK_ScalarHalf,
-                                  SkIntToScalar(y) + SK_ScalarHalf, &pt);
-        fx = SkScalarToFractionalInt(pt.fY);
-        const unsigned maxY = s.fBitmap->height() - 1;
-        *xy++ = TileProc::Y(s, SkFractionalIntToFixed(fx), maxY);
-        fx = SkScalarToFractionalInt(pt.fX);
-    }
-
-    if (0 == maxX) {
-        // all of the following X values must be 0
-        memset(xy, 0, count * sizeof(uint16_t));
-        return;
-    }
-
-    const SkFractionalInt dx = s.fInvSxFractionalInt;
-
-    if (tryDecal && can_truncate_to_fixed_for_decal(fx, dx, count, maxX)) {
-        decal_nofilter_scale(xy, SkFractionalIntToFixed(fx),
-                             SkFractionalIntToFixed(dx), count);
-    } else {
-        int i;
-        for (i = (count >> 2); i > 0; --i) {
-            unsigned a, b;
-            a = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx;
-            b = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx;
-#ifdef SK_CPU_BENDIAN
-            *xy++ = (a << 16) | b;
-#else
-            *xy++ = (b << 16) | a;
-#endif
-            a = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx;
-            b = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx;
-#ifdef SK_CPU_BENDIAN
-            *xy++ = (a << 16) | b;
-#else
-            *xy++ = (b << 16) | a;
-#endif
-        }
-        uint16_t* xx = (uint16_t*)xy;
-        for (i = (count & 3); i > 0; --i) {
-            *xx++ = TileProc::X(s, SkFractionalIntToFixed(fx), maxX); fx += dx;
-        }
-    }
-}
-
-// note: we could special-case on a matrix which is skewed in X but not Y.
-// this would require a more general setup thatn SCALE does, but could use
-// SCALE's inner loop that only looks at dx
-
-template <typename TileProc>
-void NoFilterProc_Affine(const SkBitmapProcState& s, uint32_t xy[],
-                         int count, int x, int y) {
-    SkASSERT(s.fInvType & SkMatrix::kAffine_Mask);
-    SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask |
-                             SkMatrix::kScale_Mask |
-                             SkMatrix::kAffine_Mask)) == 0);
-
-    SkPoint srcPt;
-    s.fInvProc(s.fInvMatrix,
-               SkIntToScalar(x) + SK_ScalarHalf,
-               SkIntToScalar(y) + SK_ScalarHalf, &srcPt);
-
-    SkFractionalInt fx = SkScalarToFractionalInt(srcPt.fX);
-    SkFractionalInt fy = SkScalarToFractionalInt(srcPt.fY);
-    SkFractionalInt dx = s.fInvSxFractionalInt;
-    SkFractionalInt dy = s.fInvKyFractionalInt;
-    int maxX = s.fBitmap->width() - 1;
-    int maxY = s.fBitmap->height() - 1;
-
-    for (int i = count; i > 0; --i) {
-        *xy++ = (TileProc::Y(s, SkFractionalIntToFixed(fy), maxY) << 16) |
-                 TileProc::X(s, SkFractionalIntToFixed(fx), maxX);
-        fx += dx; fy += dy;
-    }
-}
-
-template <typename TileProc>
-void NoFilterProc_Persp(const SkBitmapProcState& s, uint32_t* SK_RESTRICT xy,
-                        int count, int x, int y) {
-    SkASSERT(s.fInvType & SkMatrix::kPerspective_Mask);
-
-    int maxX = s.fBitmap->width() - 1;
-    int maxY = s.fBitmap->height() - 1;
-
-    SkPerspIter   iter(s.fInvMatrix,
-                       SkIntToScalar(x) + SK_ScalarHalf,
-                       SkIntToScalar(y) + SK_ScalarHalf, count);
-
-    while ((count = iter.next()) != 0) {
-        const SkFixed* SK_RESTRICT srcXY = iter.getXY();
-        while (--count >= 0) {
-            *xy++ = (TileProc::Y(s, srcXY[1], maxY) << 16) |
-                     TileProc::X(s, srcXY[0], maxX);
-            srcXY += 2;
-        }
-    }
-}
-
-#endif