use templates instead of macros to build blitters

src/core/SkBitmapProcState_matrixProcs.cpp

 /* NEON optimized code (C) COPYRIGHT 2009 Motorola
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmapProcState.h"
 #include "SkPerspIter.h"
 #include "SkShader.h"
 #include "SkUtils.h"
@@ skipping 15 matching lines @@
         } else {
             x = x % n;
         }
     }
     return x;
 }
 
 void decal_nofilter_scale(uint32_t dst[], SkFixed fx, SkFixed dx, int count);
 void decal_filter_scale(uint32_t dst[], SkFixed fx, SkFixed dx, int count);
 
+#include "SkBitmapProcState_matrix_template.h"
+
+///////////////////////////////////////////////////////////////////////////////
+
 // Compile neon code paths if needed
 #if !SK_ARM_NEON_IS_NONE
 
 // These are defined in src/opts/SkBitmapProcState_matrixProcs_neon.cpp
 extern const SkBitmapProcState::MatrixProc ClampX_ClampY_Procs_neon[];
 extern const SkBitmapProcState::MatrixProc RepeatX_RepeatY_Procs_neon[];
 
 #endif // !SK_ARM_NEON_IS_NONE
 
 // Compile non-neon code path if needed
 #if !SK_ARM_NEON_IS_ALWAYS
 #define MAKENAME(suffix)        ClampX_ClampY ## suffix
 #define TILEX_PROCF(fx, max)    SkClampMax((fx) >> 16, max)
 #define TILEY_PROCF(fy, max)    SkClampMax((fy) >> 16, max)
 #define TILEX_LOW_BITS(fx, max) (((fx) >> 12) & 0xF)
 #define TILEY_LOW_BITS(fy, max) (((fy) >> 12) & 0xF)
 #define CHECK_FOR_DECAL
 #include "SkBitmapProcState_matrix.h"
 
+class ClampTileProcs {

[mtklein, 2014/01/03 15:49:57]

I usually see these traity classes as structs, which helps a little to emphasize
it's just a namespace, it's all public, and there's no point in instantiating
one.

[reed1, 2014/04/11 13:12:27]

Done.

+public:
+    static unsigned X(const SkBitmapProcState&, SkFixed fx, int max) {
+        return SkClampMax(fx >> 16, max);
+    }
+    static unsigned Y(const SkBitmapProcState&, SkFixed fx, int max) {

[mtklein, 2014/01/03 15:49:57]

These Y methods take fy, no?

[reed1, 2014/04/11 13:12:27]

Done.

+        return SkClampMax(fx >> 16, max);
+    }
+};
+
+static SkBitmapProcState::MatrixProc ClampX_ClampY_Procs[] = {
+    NoFilterProc_Scale<ClampTileProcs, true>,
+    ClampX_ClampY_filter_scale,
+    NoFilterProc_Affine<ClampTileProcs>,
+    ClampX_ClampY_filter_affine,
+    NoFilterProc_Persp<ClampTileProcs>,
+    ClampX_ClampY_filter_persp
+};
+
+// Referenced in opts_check_SSE2.cpp
+void ClampX_ClampY_nofilter_scale(const SkBitmapProcState& s, uint32_t xy[],
+                                  int count, int x, int y) {
+    return NoFilterProc_Scale<ClampTileProcs, true>(s, xy, count, x, y);
+}
+void ClampX_ClampY_nofilter_affine(const SkBitmapProcState& s, uint32_t xy[],
+                                  int count, int x, int y) {
+    return NoFilterProc_Affine<ClampTileProcs>(s, xy, count, x, y);
+}
+
 #define MAKENAME(suffix)        RepeatX_RepeatY ## suffix
 #define TILEX_PROCF(fx, max)    SK_USHIFT16(((fx) & 0xFFFF) * ((max) + 1))
 #define TILEY_PROCF(fy, max)    SK_USHIFT16(((fy) & 0xFFFF) * ((max) + 1))
 #define TILEX_LOW_BITS(fx, max) ((((fx) & 0xFFFF) * ((max) + 1) >> 12) & 0xF)
 #define TILEY_LOW_BITS(fy, max) ((((fy) & 0xFFFF) * ((max) + 1) >> 12) & 0xF)
 #include "SkBitmapProcState_matrix.h"
 #endif
 
+class RepeatTileProcs {
+public:
+    static unsigned X(const SkBitmapProcState&, SkFixed fx, int max) {
+        return SK_USHIFT16(((fx) & 0xFFFF) * ((max) + 1));
+    }
+    static unsigned Y(const SkBitmapProcState&, SkFixed fx, int max) {
+        return SK_USHIFT16(((fx) & 0xFFFF) * ((max) + 1));
+    }
+};
+
+static SkBitmapProcState::MatrixProc RepeatX_RepeatY_Procs[] = {
+    NoFilterProc_Scale<RepeatTileProcs, true>,
+    RepeatX_RepeatY_filter_scale,
+    NoFilterProc_Affine<RepeatTileProcs>,
+    RepeatX_RepeatY_filter_affine,
+    NoFilterProc_Persp<RepeatTileProcs>,
+    RepeatX_RepeatY_filter_persp
+};
+
 #define MAKENAME(suffix)        GeneralXY ## suffix
 #define PREAMBLE(state)         SkBitmapProcState::FixedTileProc tileProcX = (state).fTileProcX; (void) tileProcX; \
                                 SkBitmapProcState::FixedTileProc tileProcY = (state).fTileProcY; (void) tileProcY; \
                                 SkBitmapProcState::FixedTileLowBitsProc tileLowBitsProcX = (state).fTileLowBitsProcX; (void) tileLowBitsProcX; \
                                 SkBitmapProcState::FixedTileLowBitsProc tileLowBitsProcY = (state).fTileLowBitsProcY; (void) tileLowBitsProcY
 #define PREAMBLE_PARAM_X        , SkBitmapProcState::FixedTileProc tileProcX, SkBitmapProcState::FixedTileLowBitsProc tileLowBitsProcX
 #define PREAMBLE_PARAM_Y        , SkBitmapProcState::FixedTileProc tileProcY, SkBitmapProcState::FixedTileLowBitsProc tileLowBitsProcY
 #define PREAMBLE_ARG_X          , tileProcX, tileLowBitsProcX
 #define PREAMBLE_ARG_Y          , tileProcY, tileLowBitsProcY
 #define TILEX_PROCF(fx, max)    SK_USHIFT16(tileProcX(fx) * ((max) + 1))
 #define TILEY_PROCF(fy, max)    SK_USHIFT16(tileProcY(fy) * ((max) + 1))
 #define TILEX_LOW_BITS(fx, max) tileLowBitsProcX(fx, (max) + 1)
 #define TILEY_LOW_BITS(fy, max) tileLowBitsProcY(fy, (max) + 1)
 #include "SkBitmapProcState_matrix.h"
 
+class GeneralTileProcs {
+public:
+    static unsigned X(const SkBitmapProcState& s, SkFixed fx, int max) {
+        return SK_USHIFT16(s.fTileProcX(fx) * ((max) + 1));
+    }
+    static unsigned Y(const SkBitmapProcState& s, SkFixed fx, int max) {
+        return SK_USHIFT16(s.fTileProcY(fx) * ((max) + 1));
+    }
+};
+
+static SkBitmapProcState::MatrixProc GeneralXY_Procs[] = {
+    NoFilterProc_Scale<GeneralTileProcs, true>,
+    GeneralXY_filter_scale,
+    NoFilterProc_Affine<GeneralTileProcs>,
+    GeneralXY_filter_affine,
+    NoFilterProc_Persp<GeneralTileProcs>,
+    GeneralXY_filter_persp
+};
+
+///////////////////////////////////////////////////////////////////////////////
+
 static inline U16CPU fixed_clamp(SkFixed x)
 {
     if (x < 0) {
         x = 0;
     }
     if (x >> 16) {
         x = 0xFFFF;
     }
     return x;
 }
@@ skipping 369 matching lines @@
     {
         return SK_ARM_NEON_WRAP(RepeatX_RepeatY_Procs)[index];
     }
 
     fTileProcX = choose_tile_proc(fTileModeX);
     fTileProcY = choose_tile_proc(fTileModeY);
     fTileLowBitsProcX = choose_tile_lowbits_proc(fTileModeX);
     fTileLowBitsProcY = choose_tile_lowbits_proc(fTileModeY);
     return GeneralXY_Procs[index];
 }