use table of procs (and unrolling) to speed up mapPts

bench/MatrixBench.cpp

 
 /*
  * 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 "Benchmark.h"
 #include "SkMatrix.h"
 #include "SkMatrixUtils.h"
@@ skipping 249 matching lines @@
 
 DEF_BENCH( return new InvertMapRectMatrixBench(
                            "invert_maprect_typemask_nonpersp",
                            InvertMapRectMatrixBench::kUncachedTypeMask_Flag |
                            InvertMapRectMatrixBench::kScale_Flag |
                            InvertMapRectMatrixBench::kRotate_Flag |
                            InvertMapRectMatrixBench::kTranslate_Flag); )
 
 ///////////////////////////////////////////////////////////////////////////////
 
-static SkMatrix make_ident() { SkMatrix m; m.reset(); return m; }
-static SkMatrix make_trans() { SkMatrix m; m.setTranslate(2, 3); return m; }
+static SkMatrix make_trans() { return SkMatrix::MakeTrans(2, 3); }
 static SkMatrix make_scale() { SkMatrix m(make_trans()); m.postScale(1.5f, 0.5f); return m; }
 static SkMatrix make_afine() { SkMatrix m(make_trans()); m.postRotate(15); return m; }
 
 class MapPointsMatrixBench : public MatrixBench {
 protected:
     SkMatrix fM;
     enum {
         N = 32
     };
     SkPoint fSrc[N], fDst[N];
@@ skipping 13 matching lines @@
             for (int i = 0; i < 1000000; ++i) {
                 fM.mapPts(fDst, fSrc, N);
             }
         } else {
             for (int i = 0; i < 1000000; ++i) {
                 fM.mapPoints(fDst, fSrc, N);
             }
         }
     }
 };
-DEF_BENCH( return new MapPointsMatrixBench("mappts_ident0", make_ident(), false); )
-DEF_BENCH( return new MapPointsMatrixBench("mappts_ident1", make_ident(), true); )
 DEF_BENCH( return new MapPointsMatrixBench("mappts_trans0", make_trans(), false); )
 DEF_BENCH( return new MapPointsMatrixBench("mappts_trans1", make_trans(), true); )
 DEF_BENCH( return new MapPointsMatrixBench("mappts_scale0", make_scale(), false); )
 DEF_BENCH( return new MapPointsMatrixBench("mappts_scale1", make_scale(), true); )
 DEF_BENCH( return new MapPointsMatrixBench("mappts_afine0", make_afine(), false); )
 DEF_BENCH( return new MapPointsMatrixBench("mappts_afine1", make_afine(), true); )