ref: c56e5dd620efc61f5185b314bf672255b35d289b
parent: 5d48663e04edb67fa0715d2af1e7c1590050f0aa
author: Kaustubh Raste <kaustubh.raste@imgtec.com>
date: Thu Nov 17 12:05:53 EST 2016
Fix SingleLargeCoeff idct test Updated idct code to handle single large coefficient (-32768) Change-Id: Ia13ab1ab434a9a1b9954a5914088977a88841cc7
--- a/vpx_dsp/mips/txfm_macros_msa.h
+++ b/vpx_dsp/mips/txfm_macros_msa.h
@@ -15,19 +15,24 @@
#define DOTP_CONST_PAIR(reg0, reg1, cnst0, cnst1, out0, out1) \
{ \- v8i16 k0_m = __msa_fill_h(cnst0); \
- v4i32 s0_m, s1_m, s2_m, s3_m; \
+ v4i32 s0_m, s1_m, s2_m, s3_m, s4_m, s5_m; \
+ v8i16 k0_m, k1_m, k2_m, zero = { 0 }; \\
- s0_m = (v4i32)__msa_fill_h(cnst1); \
- k0_m = __msa_ilvev_h((v8i16)s0_m, k0_m); \
+ k0_m = __msa_fill_h(cnst0); \
+ k1_m = __msa_fill_h(cnst1); \
+ k2_m = __msa_ilvev_h((v8i16)k1_m, k0_m); \
+ k0_m = __msa_ilvev_h((v8i16)zero, k0_m); \
+ k1_m = __msa_ilvev_h(k1_m, (v8i16)zero); \
\
- ILVRL_H2_SW((-reg1), reg0, s1_m, s0_m); \
+ ILVRL_H2_SW(reg1, reg0, s5_m, s4_m); \
ILVRL_H2_SW(reg0, reg1, s3_m, s2_m); \
- DOTP_SH2_SW(s1_m, s0_m, k0_m, k0_m, s1_m, s0_m); \
+ DOTP_SH2_SW(s5_m, s4_m, k0_m, k0_m, s1_m, s0_m); \
+ s1_m = __msa_dpsub_s_w(s1_m, (v8i16)s5_m, k1_m); \
+ s0_m = __msa_dpsub_s_w(s0_m, (v8i16)s4_m, k1_m); \
SRARI_W2_SW(s1_m, s0_m, DCT_CONST_BITS); \
out0 = __msa_pckev_h((v8i16)s0_m, (v8i16)s1_m); \
\
- DOTP_SH2_SW(s3_m, s2_m, k0_m, k0_m, s1_m, s0_m); \
+ DOTP_SH2_SW(s3_m, s2_m, k2_m, k2_m, s1_m, s0_m); \
SRARI_W2_SW(s1_m, s0_m, DCT_CONST_BITS); \
out1 = __msa_pckev_h((v8i16)s0_m, (v8i16)s1_m); \
}