NEON for table lookups?

dm/DM.cpp

Index: dm/DM.cpp
diff --git a/dm/DM.cpp b/dm/DM.cpp
index d53402e723b6295dc121a2c8bd0358570f2bea23..9b3d14c8bfcfca7048d78e911ed8e0ff9ea738e5 100644
--- a/dm/DM.cpp
+++ b/dm/DM.cpp
@@ -314,11 +314,11 @@ static void push_codec_srcs(Path path) {
     // TODO (msarett): Implement scaling tests for SkImageDecoder in order to compare with these
     //                 tests.  SkImageDecoder supports downscales by integer factors.
     // SkJpegCodec natively supports scaling to: 0.125, 0.25, 0.375, 0.5, 0.625, 0.75, 0.875
-    const float nativeScales[] = { 0.125f, 0.25f, 0.375f, 0.5f, 0.625f, 0.750f, 0.875f, 1.0f };
+    const float nativeScales[] = { /*0.125f, 0.25f, 0.375f, 0.5f, 0.625f, 0.750f, 0.875f,*/ 1.0f };
 
-    const CodecSrc::Mode nativeModes[] = { CodecSrc::kCodec_Mode, CodecSrc::kCodecZeroInit_Mode,
+    const CodecSrc::Mode nativeModes[] = { CodecSrc::kCodec_Mode, /*CodecSrc::kCodecZeroInit_Mode,
             CodecSrc::kScanline_Mode, CodecSrc::kStripe_Mode, CodecSrc::kSubset_Mode,
-            CodecSrc::kGen_Mode };
+            CodecSrc::kGen_Mode*/ };
 
     CodecSrc::DstColorType colorTypes[3];
     uint32_t numColorTypes;
@@ -380,7 +380,7 @@ static void push_codec_srcs(Path path) {
         }
     }
 
-    const int sampleSizes[] = { 1, 2, 3, 4, 5, 6, 7, 8 };
+    const int sampleSizes[] = { /*1, 2, 3, 4, 5, 6, 7, 8*/ };
 
     for (int sampleSize : sampleSizes) {
         for (uint32_t i = 0; i < numColorTypes; i++) {
@@ -477,7 +477,7 @@ static void push_brd_srcs(Path path) {
     // - multiples of 2 which are not divisible by 4 (analogous for 4)
     // - larger powers of two, since BRD clients generally use powers of 2
     // We will only produce output for the larger sizes on large images.
-    const uint32_t sampleSizes[] = { 1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 24, 32, 64 };
+    const uint32_t sampleSizes[] = { /*1, 2, 3, 4, 5, 6, 7, 8, 12, 16, 24, 32, 64*/ };
 
     // We will only test to one backend (8888), but we will test all of the
     // color types that we need to decode to on this backend.