Update specializations of idct functions

Introduced append situation in Commit 0178d97 which could be
confusing. Clean a little bit and add some comments.

Change-Id: I69ad336f805aca7ce9d45515b8cd237423fadbb2

diff --git a/vpx_dsp/vpx_dsp_rtcd_defs.pl b/vpx_dsp/vpx_dsp_rtcd_defs.pl
index 3126ae6c8d3188c849cc4673342458f3f223331e..5f9da7520eac5752f82568f278fe614674d257c2 100644 (file)
--- a/vpx_dsp/vpx_dsp_rtcd_defs.pl
+++ b/vpx_dsp/vpx_dsp_rtcd_defs.pl
@@ -565,63 +565,61 @@ if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
 if (vpx_config("CONFIG_VP9") eq "yes") {
 
 add_proto qw/void vpx_idct4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct4x4_1_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct8x8_64_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct8x8_12_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct8x8_1_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct16x16_256_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct16x16_38_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct16x16_10_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct16x16_1_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct32x32_1024_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct32x32_135_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct32x32_34_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_idct32x32_1_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_iwht4x4_16_add/, "const tran_low_t *input, uint8_t *dest, int stride";
-
 add_proto qw/void vpx_iwht4x4_1_add/, "const tran_low_t *input, uint8_t *dest, int stride";
 
 if (vpx_config("CONFIG_EMULATE_HARDWARE") ne "yes") {
+  # Note that there are more specializations appended when CONFIG_VP9_HIGHBITDEPTH is off.
   specialize qw/vpx_idct4x4_16_add neon sse2/;
-
   specialize qw/vpx_idct4x4_1_add neon sse2/;
-
   specialize qw/vpx_idct8x8_64_add neon sse2 ssse3/;
-
   specialize qw/vpx_idct8x8_12_add neon sse2 ssse3/;
-
   specialize qw/vpx_idct8x8_1_add neon sse2/;
-
   specialize qw/vpx_idct16x16_256_add neon sse2/;
-
   specialize qw/vpx_idct16x16_38_add neon sse2/;
   $vpx_idct16x16_38_add_sse2=vpx_idct16x16_256_add_sse2;
-
   specialize qw/vpx_idct16x16_10_add neon sse2/;
-
   specialize qw/vpx_idct16x16_1_add neon sse2/;
-
   specialize qw/vpx_idct32x32_1024_add neon sse2 ssse3/;
-
   specialize qw/vpx_idct32x32_135_add neon sse2 ssse3/;
   $vpx_idct32x32_135_add_sse2=vpx_idct32x32_1024_add_sse2;
-
   specialize qw/vpx_idct32x32_34_add neon sse2 ssse3/;
-
   specialize qw/vpx_idct32x32_1_add neon sse2/;
+
+  if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") ne "yes") {
+    # Note that these specializations appends to the above ones.
+    specialize qw/vpx_idct4x4_16_add dspr2 msa/;
+    specialize qw/vpx_idct4x4_1_add dspr2 msa/;
+    specialize qw/vpx_idct8x8_64_add dspr2 msa/;
+    specialize qw/vpx_idct8x8_12_add dspr2 msa/;
+    specialize qw/vpx_idct8x8_1_add dspr2 msa/;
+    specialize qw/vpx_idct16x16_256_add dspr2 msa/;
+    specialize qw/vpx_idct16x16_38_add dspr2 msa/;
+    $vpx_idct16x16_38_add_dspr2=vpx_idct16x16_256_add_dspr2;
+    $vpx_idct16x16_38_add_msa=vpx_idct16x16_256_add_msa;
+    specialize qw/vpx_idct16x16_10_add dspr2 msa/;
+    specialize qw/vpx_idct16x16_1_add dspr2 msa/;
+    specialize qw/vpx_idct32x32_1024_add dspr2 msa/;
+    specialize qw/vpx_idct32x32_135_add dspr2 msa/;
+    $vpx_idct32x32_135_add_dspr2=vpx_idct32x32_1024_add_dspr2;
+    $vpx_idct32x32_135_add_msa=vpx_idct32x32_1024_add_msa;
+    specialize qw/vpx_idct32x32_34_add dspr2 msa/;
+    specialize qw/vpx_idct32x32_1_add dspr2 msa/;
+    specialize qw/vpx_iwht4x4_16_add msa sse2/;
+    specialize qw/vpx_iwht4x4_1_add msa/;
+  } # !CONFIG_VP9_HIGHBITDEPTH
 }  # !CONFIG_EMULATE_HARDWARE
 
 if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
@@ -630,95 +628,41 @@ if (vpx_config("CONFIG_VP9_HIGHBITDEPTH") eq "yes") {
   specialize qw/vpx_iwht4x4_16_add sse2/;
 
   add_proto qw/void vpx_highbd_idct4x4_16_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct4x4_1_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
   specialize qw/vpx_highbd_idct4x4_1_add neon/;
 
   add_proto qw/void vpx_highbd_idct8x8_64_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct8x8_12_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct8x8_1_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
   specialize qw/vpx_highbd_idct8x8_1_add neon/;
 
   add_proto qw/void vpx_highbd_idct16x16_256_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct16x16_38_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct16x16_10_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct16x16_1_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
   specialize qw/vpx_highbd_idct16x16_1_add neon/;
 
   add_proto qw/void vpx_highbd_idct32x32_1024_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct32x32_135_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct32x32_34_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_idct32x32_1_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
   specialize qw/vpx_highbd_idct32x32_1_add neon sse2/;
 
   add_proto qw/void vpx_highbd_iwht4x4_16_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
-
   add_proto qw/void vpx_highbd_iwht4x4_1_add/, "const tran_low_t *input, uint16_t *dest, int stride, int bd";
 
   if (vpx_config("CONFIG_EMULATE_HARDWARE") ne "yes") {
     specialize qw/vpx_highbd_idct4x4_16_add neon sse2/;
-
     specialize qw/vpx_highbd_idct8x8_64_add neon sse2/;
-
     specialize qw/vpx_highbd_idct8x8_12_add neon sse2/;
-
     specialize qw/vpx_highbd_idct16x16_256_add neon sse2/;
-
     specialize qw/vpx_highbd_idct16x16_38_add neon sse2/;
     $vpx_highbd_idct16x16_38_add_sse2=vpx_highbd_idct16x16_256_add_sse2;
-
     specialize qw/vpx_highbd_idct16x16_10_add neon sse2/;
-
     specialize qw/vpx_highbd_idct32x32_1024_add neon/;
-
     specialize qw/vpx_highbd_idct32x32_135_add neon/;
-
     specialize qw/vpx_highbd_idct32x32_34_add neon/;
   }  # !CONFIG_EMULATE_HARDWARE
-} else {
-  if (vpx_config("CONFIG_EMULATE_HARDWARE") ne "yes") {
-    specialize qw/vpx_idct4x4_16_add dspr2 msa/;
-
-    specialize qw/vpx_idct4x4_1_add dspr2 msa/;
-
-    specialize qw/vpx_idct8x8_64_add dspr2 msa/;
-
-    specialize qw/vpx_idct8x8_12_add dspr2 msa/;
-
-    specialize qw/vpx_idct8x8_1_add dspr2 msa/;
-
-    specialize qw/vpx_idct16x16_256_add dspr2 msa/;
-
-    specialize qw/vpx_idct16x16_38_add dspr2 msa/;
-    $vpx_idct16x16_38_add_dspr2=vpx_idct16x16_256_add_dspr2;
-    $vpx_idct16x16_38_add_msa=vpx_idct16x16_256_add_msa;
-
-    specialize qw/vpx_idct16x16_10_add dspr2 msa/;
-
-    specialize qw/vpx_idct16x16_1_add dspr2 msa/;
-
-    specialize qw/vpx_idct32x32_1024_add dspr2 msa/;
-
-    specialize qw/vpx_idct32x32_135_add dspr2 msa/;
-    $vpx_idct32x32_135_add_dspr2=vpx_idct32x32_1024_add_dspr2;
-    $vpx_idct32x32_135_add_msa=vpx_idct32x32_1024_add_msa;
-
-    specialize qw/vpx_idct32x32_34_add dspr2 msa/;
-
-    specialize qw/vpx_idct32x32_1_add dspr2 msa/;
-
-    specialize qw/vpx_iwht4x4_16_add msa sse2/;
-
-    specialize qw/vpx_iwht4x4_1_add msa/;
-  }  # !CONFIG_EMULATE_HARDWARE
 }  # CONFIG_VP9_HIGHBITDEPTH
 }  # CONFIG_VP9