arm: dynamic NEON support for SkBitmapProcState functions.

This patch does the following:

  - Move the NEON-specific code from src/core/SkBitmapProcState_filter.h
    to src/opts/SkBitmapProcState_filter_neon.h

  - Implement the NEON-specific functions in the new source file
    src/opts/SkBitmapProcState_opts_arm_neon.cpp, added to the "opts_neon"
    static library target. All functions now use the _neon suffix, even
    in full-NEON builds.

  - Move most of the content of src/core/SkBitmapProcState.cpp to a
    new header: src/core/SkBitmapProcState_procs.h

This header is included by two source files:

  src/core/SkBitmapProcState.cpp, to define the regular functions.
  src/opts/SkBitmapProcState_opts_arm_neon.cpp to define NEON ones.

This is to deal with the fact that all NEON functions now
use the _neon suffix, even in SK_ARM_NEON_IS_ALWAYS mode,
and to be able to include the same header twice in the
SK_ARM_NEON_IS_DYNAMIC case.
Review URL: https://codereview.appspot.com/6449117

git-svn-id: http://skia.googlecode.com/svn/trunk@5055 2bbb7eff-a529-9590-31e7-b0007b416f81

1 files changed, 4 insertions, 2 deletions

diff --git a/src/core/SkBitmapProcState_shaderproc.h b/src/core/SkBitmapProcState_shaderproc.h
index ead57f123e..33c238c3aa 100644
--- a/src/core/SkBitmapProcState_shaderproc.h
+++ b/src/core/SkBitmapProcState_shaderproc.h
@@ -10,8 +10,10 @@
 
 #define SCALE_FILTER_NAME       MAKENAME(_filter_DX_shaderproc)
 
-static void SCALE_FILTER_NAME(const SkBitmapProcState& s, int x, int y,
-                              DSTTYPE* SK_RESTRICT colors, int count) {
+// Can't be static in the general case because some of these implementations
+// will be defined and referenced in different object files.
+void SCALE_FILTER_NAME(const SkBitmapProcState& s, int x, int y,
+                       DSTTYPE* SK_RESTRICT colors, int count) {
     SkASSERT((s.fInvType & ~(SkMatrix::kTranslate_Mask |
                              SkMatrix::kScale_Mask)) == 0);
     SkASSERT(s.fInvKy == 0);