Replace vp9_ prefix with vpx_ prefix in vpx_dsp function names

This commit clears the function naming convention in vpx_dsp. It
replaces vp9_ prefix of global functions with vpx_ prefix. It also
removes the vp9_ prefix from static functions.

Change-Id: I6394359a63b71a51dda01342eec6a3cc08dfeedf

test/fdct4x4_test.cc

diff --git a/test/fdct4x4_test.cc b/test/fdct4x4_test.cc
index 9dcf636..3f6b738 100644
--- a/test/fdct4x4_test.cc
+++ b/test/fdct4x4_test.cc
@@ -55,11 +55,11 @@
 
 #if CONFIG_VP9_HIGHBITDEPTH
 void idct4x4_10(const tran_low_t *in, uint8_t *out, int stride) {
-  vp9_highbd_idct4x4_16_add_c(in, out, stride, 10);
+  vpx_highbd_idct4x4_16_add_c(in, out, stride, 10);
 }
 
 void idct4x4_12(const tran_low_t *in, uint8_t *out, int stride) {
-  vp9_highbd_idct4x4_16_add_c(in, out, stride, 12);
+  vpx_highbd_idct4x4_16_add_c(in, out, stride, 12);
 }
 
 void iht4x4_10(const tran_low_t *in, uint8_t *out, int stride, int tx_type) {
@@ -71,20 +71,20 @@
 }
 
 void iwht4x4_10(const tran_low_t *in, uint8_t *out, int stride) {
-  vp9_highbd_iwht4x4_16_add_c(in, out, stride, 10);
+  vpx_highbd_iwht4x4_16_add_c(in, out, stride, 10);
 }
 
 void iwht4x4_12(const tran_low_t *in, uint8_t *out, int stride) {
-  vp9_highbd_iwht4x4_16_add_c(in, out, stride, 12);
+  vpx_highbd_iwht4x4_16_add_c(in, out, stride, 12);
 }
 
 #if HAVE_SSE2
 void idct4x4_10_sse2(const tran_low_t *in, uint8_t *out, int stride) {
-  vp9_highbd_idct4x4_16_add_sse2(in, out, stride, 10);
+  vpx_highbd_idct4x4_16_add_sse2(in, out, stride, 10);
 }
 
 void idct4x4_12_sse2(const tran_low_t *in, uint8_t *out, int stride) {
-  vp9_highbd_idct4x4_16_add_sse2(in, out, stride, 12);
+  vpx_highbd_idct4x4_16_add_sse2(in, out, stride, 12);
 }
 #endif  // HAVE_SSE2
 #endif  // CONFIG_VP9_HIGHBITDEPTH
@@ -421,12 +421,12 @@
     ::testing::Values(
         make_tuple(&vpx_highbd_fdct4x4_c, &idct4x4_10, 0, VPX_BITS_10),
         make_tuple(&vpx_highbd_fdct4x4_c, &idct4x4_12, 0, VPX_BITS_12),
-        make_tuple(&vpx_fdct4x4_c, &vp9_idct4x4_16_add_c, 0, VPX_BITS_8)));
+        make_tuple(&vpx_fdct4x4_c, &vpx_idct4x4_16_add_c, 0, VPX_BITS_8)));
 #else
 INSTANTIATE_TEST_CASE_P(
     C, Trans4x4DCT,
     ::testing::Values(
-        make_tuple(&vpx_fdct4x4_c, &vp9_idct4x4_16_add_c, 0, VPX_BITS_8)));
+        make_tuple(&vpx_fdct4x4_c, &vpx_idct4x4_16_add_c, 0, VPX_BITS_8)));
 #endif  // CONFIG_VP9_HIGHBITDEPTH
 
 #if CONFIG_VP9_HIGHBITDEPTH
@@ -461,12 +461,12 @@
     ::testing::Values(
         make_tuple(&vp9_highbd_fwht4x4_c, &iwht4x4_10, 0, VPX_BITS_10),
         make_tuple(&vp9_highbd_fwht4x4_c, &iwht4x4_12, 0, VPX_BITS_12),
-        make_tuple(&vp9_fwht4x4_c, &vp9_iwht4x4_16_add_c, 0, VPX_BITS_8)));
+        make_tuple(&vp9_fwht4x4_c, &vpx_iwht4x4_16_add_c, 0, VPX_BITS_8)));
 #else
 INSTANTIATE_TEST_CASE_P(
     C, Trans4x4WHT,
     ::testing::Values(
-        make_tuple(&vp9_fwht4x4_c, &vp9_iwht4x4_16_add_c, 0, VPX_BITS_8)));
+        make_tuple(&vp9_fwht4x4_c, &vpx_iwht4x4_16_add_c, 0, VPX_BITS_8)));
 #endif  // CONFIG_VP9_HIGHBITDEPTH
 
 #if HAVE_NEON_ASM && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
@@ -474,7 +474,7 @@
     NEON, Trans4x4DCT,
     ::testing::Values(
         make_tuple(&vpx_fdct4x4_c,
-                   &vp9_idct4x4_16_add_neon, 0, VPX_BITS_8)));
+                   &vpx_idct4x4_16_add_neon, 0, VPX_BITS_8)));
 #endif  // HAVE_NEON_ASM && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
 
 #if HAVE_NEON && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
@@ -492,7 +492,7 @@
 INSTANTIATE_TEST_CASE_P(
     MMX, Trans4x4WHT,
     ::testing::Values(
-        make_tuple(&vp9_fwht4x4_mmx, &vp9_iwht4x4_16_add_c, 0, VPX_BITS_8)));
+        make_tuple(&vp9_fwht4x4_mmx, &vpx_iwht4x4_16_add_c, 0, VPX_BITS_8)));
 #endif
 
 #if CONFIG_USE_X86INC && HAVE_SSE2 && !CONFIG_VP9_HIGHBITDEPTH && \
@@ -500,7 +500,7 @@
 INSTANTIATE_TEST_CASE_P(
     SSE2, Trans4x4WHT,
     ::testing::Values(
-        make_tuple(&vp9_fwht4x4_c, &vp9_iwht4x4_16_add_sse2, 0, VPX_BITS_8)));
+        make_tuple(&vp9_fwht4x4_c, &vpx_iwht4x4_16_add_sse2, 0, VPX_BITS_8)));
 #endif
 
 #if HAVE_SSE2 && !CONFIG_VP9_HIGHBITDEPTH && !CONFIG_EMULATE_HARDWARE
@@ -508,7 +508,7 @@
     SSE2, Trans4x4DCT,
     ::testing::Values(
         make_tuple(&vpx_fdct4x4_sse2,
-                   &vp9_idct4x4_16_add_sse2, 0, VPX_BITS_8)));
+                   &vpx_idct4x4_16_add_sse2, 0, VPX_BITS_8)));
 INSTANTIATE_TEST_CASE_P(
     SSE2, Trans4x4HT,
     ::testing::Values(
@@ -526,7 +526,7 @@
         make_tuple(&vpx_highbd_fdct4x4_sse2, &idct4x4_10_sse2, 0, VPX_BITS_10),
         make_tuple(&vpx_highbd_fdct4x4_c,    &idct4x4_12_sse2, 0, VPX_BITS_12),
         make_tuple(&vpx_highbd_fdct4x4_sse2, &idct4x4_12_sse2, 0, VPX_BITS_12),
-        make_tuple(&vpx_fdct4x4_sse2,      &vp9_idct4x4_16_add_c, 0,
+        make_tuple(&vpx_fdct4x4_sse2,      &vpx_idct4x4_16_add_c, 0,
                    VPX_BITS_8)));
 
 INSTANTIATE_TEST_CASE_P(
@@ -542,7 +542,7 @@
 INSTANTIATE_TEST_CASE_P(
     MSA, Trans4x4DCT,
     ::testing::Values(
-        make_tuple(&vpx_fdct4x4_msa, &vp9_idct4x4_16_add_msa, 0, VPX_BITS_8)));
+        make_tuple(&vpx_fdct4x4_msa, &vpx_idct4x4_16_add_msa, 0, VPX_BITS_8)));
 INSTANTIATE_TEST_CASE_P(
     MSA, Trans4x4HT,
     ::testing::Values(