Revert of De-proc Color32 (patchset #5 id:80001 of https://codereview.chromium.org/1104183004/)

Reason for revert:
duh

Original issue's description:
> De-proc Color32
>
> Also strips SK_SUPPORT_LEGACY_COLOR32_MATH,
> which is no longer needed.
>
> Seems handy to have SkTypes include the relevant intrinsics when
> we know we've got them, but I'm not married to it.
>
> Locally this looks like a pointlessly small perf win, but I'm mostly
> keen to get all the code together.
>
> BUG=skia:
>
> Committed: https://skia.googlesource.com/skia/+/376e9bc206b69d9190f38dfebb132a8769bbd72b
>
> Committed: https://skia.googlesource.com/skia/+/d65dc0cedd5b50dd407b6ff8fdc39123f11511cc

TBR=reed@google.com,mtklein@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=skia:

Review URL: https://codereview.chromium.org/1102363006

1 files changed, 9 insertions, 0 deletions

diff --git a/include/core/SkBlitRow.h b/include/core/SkBlitRow.h
index 56121eba78..89aa214913 100644
--- a/include/core/SkBlitRow.h
+++ b/include/core/SkBlitRow.h
@@ -64,12 +64,20 @@ public:
 
     static Proc32 Factory32(unsigned flags32);
 
+   /** Function pointer that blends a single color with a row of 32-bit colors
+       onto a 32-bit destination
+   */
+   typedef void (*ColorProc)(SkPMColor dst[], const SkPMColor src[], int count, SkPMColor color);
+
     /** Blend a single color onto a row of S32 pixels, writing the result
         into a row of D32 pixels. src and dst may be the same memory, but
         if they are not, they may not overlap.
      */
     static void Color32(SkPMColor dst[], const SkPMColor src[], int count, SkPMColor color);
 
+    //! Public entry-point to return a blit function ptr
+    static ColorProc ColorProcFactory();
+
     /** These static functions are called by the Factory and Factory32
         functions, and should return either NULL, or a
         platform-specific function-ptr to be used in place of the
@@ -77,6 +85,7 @@ public:
      */
 
     static Proc32 PlatformProcs32(unsigned flags);
+    static ColorProc PlatformColorProc();
 
     static Proc16 PlatformFactory565(unsigned flags);
     static ColorProc16 PlatformColorFactory565(unsigned flags);