avcodec/mips: Split uni mc optimizations to new file

This patch moves HEVC code of uni mc cases to new file hevc_mc_uni_msa.c.
(There are total 5 sub-modules of HEVC mc functions, if we add all these modules in one single file, its size would be huge (~750k) & difficult to maintain, so splitting it in multiple files)
This patch also adds new HEVC header file libavcodec/mips/hevc_macros_msa.h
Signed-off-by: Shivraj Patil <shivraj.patil@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/mips/Makefile

@@ -20,6 +20,7 @@ MIPSDSPR1-OBJS-$(CONFIG_AAC_ENCODER)      += mips/aaccoder_mips.o
 MIPSFPU-OBJS-$(CONFIG_AAC_ENCODER)        += mips/iirfilter_mips.o
 OBJS-$(CONFIG_HEVC_DECODER)               += mips/hevcdsp_init_mips.o
 OBJS-$(CONFIG_H264DSP)                    += mips/h264dsp_init_mips.o
-MSA-OBJS-$(CONFIG_HEVC_DECODER)           += mips/hevcdsp_msa.o
+MSA-OBJS-$(CONFIG_HEVC_DECODER)           += mips/hevcdsp_msa.o            \
+                                             mips/hevc_mc_uni_msa.o
 MSA-OBJS-$(CONFIG_H264DSP)                += mips/h264dsp_msa.o
 LOONGSON3-OBJS-$(CONFIG_H264DSP)          += mips/h264dsp_mmi.o

libavcodec/mips/hevc_macros_msa.h

+/*
+ * Copyright (c) 2015 Manojkumar Bhosale (Manojkumar.Bhosale@imgtec.com)
+ *
+ * This file is part of FFmpeg.
+ *
+ * FFmpeg is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2.1 of the License, or (at your option) any later version.
+ *
+ * FFmpeg is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with FFmpeg; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
+ */
+
+#ifndef AVCODEC_MIPS_HEVC_MACROS_MSA_H
+#define AVCODEC_MIPS_HEVC_MACROS_MSA_H
+
+#define HEVC_PCK_SW_SB2(in0, in1, out)                            \
+{                                                                 \
+    v8i16 tmp0_m;                                                 \
+                                                                  \
+    tmp0_m = __msa_pckev_h((v8i16) in0, (v8i16) in1);             \
+    out = (v4i32) __msa_pckev_b((v16i8) tmp0_m, (v16i8) tmp0_m);  \
+}
+
+#define HEVC_PCK_SW_SB4(in0, in1, in2, in3, out)                  \
+{                                                                 \
+    v8i16 tmp0_m, tmp1_m;                                         \
+                                                                  \
+    PCKEV_H2_SH(in0, in1, in2, in3, tmp0_m, tmp1_m);              \
+    out = (v4i32) __msa_pckev_b((v16i8) tmp1_m, (v16i8) tmp0_m);  \
+}
+
+#define HEVC_FILT_8TAP(in0, in1, in2, in3,                       \
+                       filt0, filt1, filt2, filt3)               \
+( {                                                              \
+    v4i32 out_m;                                                 \
+                                                                 \
+    out_m = __msa_dotp_s_w((v8i16) in0, (v8i16) filt0);          \
+    out_m = __msa_dpadd_s_w(out_m, (v8i16) in1, (v8i16) filt1);  \
+    DPADD_SH2_SW(in2, in3, filt2, filt3, out_m, out_m);          \
+    out_m;                                                       \
+} )
+
+#endif  /* AVCODEC_MIPS_HEVC_MACROS_MSA_H */