diff options
Diffstat (limited to 'third_party/aom/av1/encoder/mips/msa/fdct4x4_msa.c')
-rw-r--r-- | third_party/aom/av1/encoder/mips/msa/fdct4x4_msa.c | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/third_party/aom/av1/encoder/mips/msa/fdct4x4_msa.c b/third_party/aom/av1/encoder/mips/msa/fdct4x4_msa.c new file mode 100644 index 0000000000..085c08bfb8 --- /dev/null +++ b/third_party/aom/av1/encoder/mips/msa/fdct4x4_msa.c @@ -0,0 +1,46 @@ +/* + * Copyright (c) 2016, Alliance for Open Media. All rights reserved + * + * This source code is subject to the terms of the BSD 2 Clause License and + * the Alliance for Open Media Patent License 1.0. If the BSD 2 Clause License + * was not distributed with this source code in the LICENSE file, you can + * obtain it at www.aomedia.org/license/software. If the Alliance for Open + * Media Patent License 1.0 was not distributed with this source code in the + * PATENTS file, you can obtain it at www.aomedia.org/license/patent. + */ + +#include <assert.h> + +#include "av1/common/enums.h" + +void av1_fwht4x4_msa(const int16_t *input, int16_t *output, + int32_t src_stride) { + v8i16 in0, in1, in2, in3, in4; + + LD_SH4(input, src_stride, in0, in1, in2, in3); + + in0 += in1; + in3 -= in2; + in4 = (in0 - in3) >> 1; + SUB2(in4, in1, in4, in2, in1, in2); + in0 -= in2; + in3 += in1; + + TRANSPOSE4x4_SH_SH(in0, in2, in3, in1, in0, in2, in3, in1); + + in0 += in2; + in1 -= in3; + in4 = (in0 - in1) >> 1; + SUB2(in4, in2, in4, in3, in2, in3); + in0 -= in3; + in1 += in2; + + SLLI_4V(in0, in1, in2, in3, 2); + + TRANSPOSE4x4_SH_SH(in0, in3, in1, in2, in0, in3, in1, in2); + + ST4x2_UB(in0, output, 4); + ST4x2_UB(in3, output + 4, 4); + ST4x2_UB(in1, output + 8, 4); + ST4x2_UB(in2, output + 12, 4); +} |