lots of sRGB and F16 blits

src/core/SkSpanProcs.h

Index: src/core/SkSpanProcs.h
diff --git a/src/core/SkSpanProcs.h b/src/core/SkSpanProcs.h
new file mode 100644
index 0000000000000000000000000000000000000000..891f4e2d82216739f12b0e785ccca43fd3826499
--- /dev/null
+++ b/src/core/SkSpanProcs.h
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+/*
+ * Copyright 2016 Google Inc.
+ *
+ * Use of this source code is governed by a BSD-style license that can be
+ * found in the LICENSE file.
+ */
+
+#ifndef SkSpanProcs_DEFINED
+#define SkSpanProcs_DEFINED
+
+#include "SkPM4f.h"
+
+struct SkImageInfo;
+class SkPaint;
+class SkPixmap;
+struct SkPM4f;
+
+typedef void (*SkLoadSpanProc)(const SkPixmap&, int x, int y, SkPM4f span[], int count);
+typedef void (*SkFilterSpanProc)(const SkPaint& paint, SkPM4f span[], int count);
+
+SkLoadSpanProc SkLoadSpanProc_Choose(const SkImageInfo&);
+SkFilterSpanProc SkFilterSpanProc_Choose(const SkPaint&);
+
+#endif