Add MSA optimized YUY2ToI422, YUY2ToI420, UYVYToI422, UYVYToI420 functions

source/row_msa.cc

 /*
  *  Copyright 2016 The LibYuv Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS. All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 83 matching lines @@
     ILVRL_B2_UB(src_y0, vec_uv0, dst_uyvy0, dst_uyvy1);
     ILVRL_B2_UB(src_y1, vec_uv1, dst_uyvy2, dst_uyvy3);
     ST_UB4(dst_uyvy0, dst_uyvy1, dst_uyvy2, dst_uyvy3, dst_uyvy, 16);
     src_u += 16;
     src_v += 16;
     src_y += 32;
     dst_uyvy += 64;
   }
 }
 
+void YUY2ToYRow_MSA(const uint8* src_yuy2, uint8* dst_y, int width) {
+  int x;
+  v16u8 src0, src1, src2, src3, dst0, dst1;
+
+  for (x = 0; x < width; x += 32) {
+    LD_UB4(src_yuy2, 16, src0, src1, src2, src3);
+    dst0 = (v16u8) __msa_pckev_b((v16i8) src1, (v16i8) src0);
+    dst1 = (v16u8) __msa_pckev_b((v16i8) src3, (v16i8) src2);
+    ST_UB2(dst0, dst1, dst_y, 16);
+    src_yuy2 += 64;
+    dst_y += 32;
+  }
+}
+
+void YUY2ToUVRow_MSA(const uint8* src_yuy2, int src_stride_yuy2,
+                     uint8* dst_u, uint8* dst_v, int width) {
+  const uint8* src_yuy2_next = src_yuy2 + src_stride_yuy2;
+  int x;
+  v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
+  v16u8 vec0, vec1, dst0, dst1;
+
+  for (x = 0; x < width; x += 32) {
+    LD_UB4(src_yuy2, 16, src0, src1, src2, src3);
+    LD_UB4(src_yuy2_next, 16, src4, src5, src6, src7);
+    src0 = (v16u8) __msa_pckod_b((v16i8) src1, (v16i8) src0);
+    src1 = (v16u8) __msa_pckod_b((v16i8) src3, (v16i8) src2);
+    src2 = (v16u8) __msa_pckod_b((v16i8) src5, (v16i8) src4);
+    src3 = (v16u8) __msa_pckod_b((v16i8) src7, (v16i8) src6);
+    vec0 = __msa_aver_u_b(src0, src2);
+    vec1 = __msa_aver_u_b(src1, src3);
+    dst0 = (v16u8) __msa_pckev_b((v16i8) vec1, (v16i8) vec0);
+    dst1 = (v16u8) __msa_pckod_b((v16i8) vec1, (v16i8) vec0);
+    ST_UB(dst0, dst_u);
+    ST_UB(dst1, dst_v);
+    src_yuy2 += 64;
+    src_yuy2_next += 64;
+    dst_u += 16;
+    dst_v += 16;
+  }
+}
+
+void YUY2ToUV422Row_MSA(const uint8* src_yuy2, uint8* dst_u, uint8* dst_v,
+                        int width) {
+  int x;
+  v16u8 src0, src1, src2, src3, dst0, dst1;
+
+  for (x = 0; x < width; x += 32) {
+    LD_UB4(src_yuy2, 16, src0, src1, src2, src3);
+    src0 = (v16u8) __msa_pckod_b((v16i8) src1, (v16i8) src0);
+    src1 = (v16u8) __msa_pckod_b((v16i8) src3, (v16i8) src2);
+    dst0 = (v16u8) __msa_pckev_b((v16i8) src1, (v16i8) src0);
+    dst1 = (v16u8) __msa_pckod_b((v16i8) src1, (v16i8) src0);
+    ST_UB(dst0, dst_u);
+    ST_UB(dst1, dst_v);
+    src_yuy2 += 64;
+    dst_u += 16;
+    dst_v += 16;
+  }
+}
+
+void UYVYToYRow_MSA(const uint8* src_uyvy, uint8* dst_y, int width) {
+  int x;
+  v16u8 src0, src1, src2, src3, dst0, dst1;
+
+  for (x = 0; x < width; x += 32) {
+    LD_UB4(src_uyvy, 16, src0, src1, src2, src3);
+    dst0 = (v16u8) __msa_pckod_b((v16i8) src1, (v16i8) src0);
+    dst1 = (v16u8) __msa_pckod_b((v16i8) src3, (v16i8) src2);
+    ST_UB2(dst0, dst1, dst_y, 16);
+    src_uyvy += 64;
+    dst_y += 32;
+  }
+}
+
+void UYVYToUVRow_MSA(const uint8* src_uyvy, int src_stride_uyvy,
+                     uint8* dst_u, uint8* dst_v, int width) {
+  const uint8 *src_uyvy_next = src_uyvy + src_stride_uyvy;
+  int x;
+  v16u8 src0, src1, src2, src3, src4, src5, src6, src7;
+  v16u8 vec0, vec1, dst0, dst1;
+
+  for (x = 0; x < width; x += 32) {
+    LD_UB4(src_uyvy, 16, src0, src1, src2, src3);
+    LD_UB4(src_uyvy_next, 16, src4, src5, src6, src7);
+    src0 = (v16u8) __msa_pckev_b((v16i8) src1, (v16i8) src0);
+    src1 = (v16u8) __msa_pckev_b((v16i8) src3, (v16i8) src2);
+    src2 = (v16u8) __msa_pckev_b((v16i8) src5, (v16i8) src4);
+    src3 = (v16u8) __msa_pckev_b((v16i8) src7, (v16i8) src6);
+    vec0 = __msa_aver_u_b(src0, src2);
+    vec1 = __msa_aver_u_b(src1, src3);
+    dst0 = (v16u8) __msa_pckev_b((v16i8) vec1, (v16i8) vec0);
+    dst1 = (v16u8) __msa_pckod_b((v16i8) vec1, (v16i8) vec0);
+    ST_UB(dst0, dst_u);
+    ST_UB(dst1, dst_v);
+    src_uyvy += 64;
+    src_uyvy_next += 64;
+    dst_u += 16;
+    dst_v += 16;
+  }
+}
+
+void UYVYToUV422Row_MSA(const uint8* src_uyvy, uint8* dst_u, uint8* dst_v,
+                        int width) {
+  int x;
+  v16u8 src0, src1, src2, src3, dst0, dst1;
+
+  for (x = 0; x < width; x += 32) {
+    LD_UB4(src_uyvy, 16, src0, src1, src2, src3);
+    src0 = (v16u8) __msa_pckev_b((v16i8) src1, (v16i8) src0);
+    src1 = (v16u8) __msa_pckev_b((v16i8) src3, (v16i8) src2);
+    dst0 = (v16u8) __msa_pckev_b((v16i8) src1, (v16i8) src0);
+    dst1 = (v16u8) __msa_pckod_b((v16i8) src1, (v16i8) src0);
+    ST_UB(dst0, dst_u);
+    ST_UB(dst1, dst_v);
+    src_uyvy += 64;
+    dst_u += 16;
+    dst_v += 16;
+  }
+}
+
 #ifdef __cplusplus
 }  // extern "C"
 }  // namespace libyuv
 #endif
 
 #endif  // !defined(LIBYUV_DISABLE_MSA) && defined(__mips_msa)