avcodec: loongson3 optimized h264dsp weighted mc with mmi

Signed-off-by: ZhouXiaoyong <zhouxiaoyong@loongson.cn>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>

libavcodec/mips/Makefile

@@ -22,3 +22,4 @@ 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_H264DSP)                += mips/h264dsp_msa.o
+LOONGSON3-OBJS-$(CONFIG_H264DSP)          += mips/h264dsp_mmi.o

libavcodec/mips/h264dsp_init_mips.c

 /*
  * Copyright (c) 2015 Parag Salasakar (Parag.Salasakar@imgtec.com)
+ * Copyright (c) 2015 Zhou Xiaoyong <zhouxiaoyong@loongson.cn>
  *
  * This file is part of FFmpeg.
  *
@@ -65,10 +66,30 @@ static av_cold void h264dsp_init_msa(H264DSPContext *c,
 }
 #endif  // #if HAVE_MSA
 
+#if HAVE_LOONGSON3
+static av_cold void h264dsp_init_mmi(H264DSPContext * c,
+                                     const int bit_depth,
+                                     const int chroma_format_idc)
+{
+    if (bit_depth == 8) {
+        c->weight_h264_pixels_tab[0] = ff_h264_weight_pixels16_8_mmi;
+        c->weight_h264_pixels_tab[1] = ff_h264_weight_pixels8_8_mmi;
+        c->weight_h264_pixels_tab[2] = ff_h264_weight_pixels4_8_mmi;
+
+        c->biweight_h264_pixels_tab[0] = ff_h264_biweight_pixels16_8_mmi;
+        c->biweight_h264_pixels_tab[1] = ff_h264_biweight_pixels8_8_mmi;
+        c->biweight_h264_pixels_tab[2] = ff_h264_biweight_pixels4_8_mmi;
+    }
+}
+#endif /* HAVE_LOONGSON3 */
+
 av_cold void ff_h264dsp_init_mips(H264DSPContext *c, const int bit_depth,
                                   const int chroma_format_idc)
 {
 #if HAVE_MSA
     h264dsp_init_msa(c, bit_depth, chroma_format_idc);
 #endif  // #if HAVE_MSA
+#if HAVE_LOONGSON3
+    h264dsp_init_mmi(c, bit_depth, chroma_format_idc);
+#endif /* HAVE_LOONGSON3 */
 }

libavcodec/mips/h264dsp_mips.h

@@ -68,4 +68,20 @@ void ff_weight_h264_pixels8_8_msa(uint8_t *src, int stride, int height,
 void ff_weight_h264_pixels4_8_msa(uint8_t *src, int stride, int height,
                                   int log2_denom, int weight, int offset);
 
+void ff_h264_weight_pixels16_8_mmi(uint8_t *block, int stride, int height,
+        int log2_denom, int weight, int offset);
+void ff_h264_biweight_pixels16_8_mmi(uint8_t *dst, uint8_t *src,
+        int stride, int height, int log2_denom, int weightd, int weights,
+        int offset);
+void ff_h264_weight_pixels8_8_mmi(uint8_t *block, int stride, int height,
+        int log2_denom, int weight, int offset);
+void ff_h264_biweight_pixels8_8_mmi(uint8_t *dst, uint8_t *src,
+        int stride, int height, int log2_denom, int weightd, int weights,
+        int offset);
+void ff_h264_weight_pixels4_8_mmi(uint8_t *block, int stride, int height,
+        int log2_denom, int weight, int offset);
+void ff_h264_biweight_pixels4_8_mmi(uint8_t *dst, uint8_t *src,
+        int stride, int height, int log2_denom, int weightd, int weights,
+        int offset);
+
 #endif  // #ifndef H264_DSP_MIPS_H