Enable the SSSE3 files to be built for Android when SSSE3 is not present.

src/opts/SkBitmapProcState_opts_SSSE3.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
-#include <tmmintrin.h>  // SSSE3
 #include "SkBitmapProcState_opts_SSSE3.h"
 #include "SkPaint.h"
 #include "SkUtils.h"
 
+/* With the exception of the Android framework we always build the SSSE3 functions
+ * and enable the caller to determine SSSE3 support.  However for the Android framework
+ * if the device does not support SSSE3 then the compiler will not supply the required
+ * -mssse3 option needed to build this file, so instead we provide a stub implementation.
+ */
+#if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3 || !defined(SK_BUILD_FOR_ANDROID_FRAMEWORK)

[mtklein, 2014/02/25 17:27:23]

Might even want to swap the order of the arguments to ||.

+
+#include <tmmintrin.h>  // SSSE3
+
 // adding anonymous namespace seemed to force gcc to inline directly the
 // instantiation, instead of creating the functions
 // S32_generic_D32_filter_DX_SSSE3<true> and
 // S32_generic_D32_filter_DX_SSSE3<false> which were then called by the
 // external functions.
 namespace {
 // In this file, variations for alpha and non alpha versions are implemented
 // with a template, as it makes the code more compact and a bit easier to
 // maintain, while making the compiler generate the same exact code as with
 // two functions that only differ by a few lines.
@@ skipping 692 matching lines @@
                                     const uint32_t* xy,
                                     int count, uint32_t* colors) {
     S32_generic_D32_filter_DXDY_SSSE3<false>(s, xy, count, colors);
 }
 
 void S32_alpha_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
                                    const uint32_t* xy,
                                    int count, uint32_t* colors) {
     S32_generic_D32_filter_DXDY_SSSE3<true>(s, xy, count, colors);
 }
+
+#else //SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSSE3

[mtklein, 2014/02/25 17:27:23]

Update this? 

+
+void S32_opaque_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
+                                    const uint32_t* xy,
+                                    int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_alpha_D32_filter_DX_SSSE3(const SkBitmapProcState& s,
+                                   const uint32_t* xy,
+                                   int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_opaque_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
+                                    const uint32_t* xy,
+                                    int count, uint32_t* colors) {
+    sk_throw();
+}
+
+void S32_alpha_D32_filter_DXDY_SSSE3(const SkBitmapProcState& s,
+                                   const uint32_t* xy,
+                                   int count, uint32_t* colors) {
+    sk_throw();
+}
+
+#endif