diff options
Diffstat (limited to 'media/libvpx/libvpx/vpx_dsp/mips/idct4x4_msa.c')
-rw-r--r-- | media/libvpx/libvpx/vpx_dsp/mips/idct4x4_msa.c | 99 |
1 files changed, 99 insertions, 0 deletions
diff --git a/media/libvpx/libvpx/vpx_dsp/mips/idct4x4_msa.c b/media/libvpx/libvpx/vpx_dsp/mips/idct4x4_msa.c new file mode 100644 index 0000000000..56ffec3cba --- /dev/null +++ b/media/libvpx/libvpx/vpx_dsp/mips/idct4x4_msa.c @@ -0,0 +1,99 @@ +/* + * Copyright (c) 2015 The WebM 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. + */ + +#include "./vpx_dsp_rtcd.h" +#include "vpx_dsp/mips/inv_txfm_msa.h" + +void vpx_iwht4x4_16_add_msa(const int16_t *input, uint8_t *dst, + int32_t dst_stride) { + v8i16 in0, in1, in2, in3; + v4i32 in0_r, in1_r, in2_r, in3_r, in4_r; + + /* load vector elements of 4x4 block */ + LD4x4_SH(input, in0, in2, in3, in1); + TRANSPOSE4x4_SH_SH(in0, in2, in3, in1, in0, in2, in3, in1); + UNPCK_R_SH_SW(in0, in0_r); + UNPCK_R_SH_SW(in2, in2_r); + UNPCK_R_SH_SW(in3, in3_r); + UNPCK_R_SH_SW(in1, in1_r); + SRA_4V(in0_r, in1_r, in2_r, in3_r, UNIT_QUANT_SHIFT); + + in0_r += in2_r; + in3_r -= in1_r; + in4_r = (in0_r - in3_r) >> 1; + in1_r = in4_r - in1_r; + in2_r = in4_r - in2_r; + in0_r -= in1_r; + in3_r += in2_r; + + TRANSPOSE4x4_SW_SW(in0_r, in1_r, in2_r, in3_r, in0_r, in1_r, in2_r, in3_r); + + in0_r += in1_r; + in2_r -= in3_r; + in4_r = (in0_r - in2_r) >> 1; + in3_r = in4_r - in3_r; + in1_r = in4_r - in1_r; + in0_r -= in3_r; + in2_r += in1_r; + + PCKEV_H4_SH(in0_r, in0_r, in1_r, in1_r, in2_r, in2_r, in3_r, in3_r, in0, in1, + in2, in3); + ADDBLK_ST4x4_UB(in0, in3, in1, in2, dst, dst_stride); +} + +void vpx_iwht4x4_1_add_msa(const int16_t *input, uint8_t *dst, + int32_t dst_stride) { + int16_t a1, e1; + v8i16 in1, in0 = { 0 }; + + a1 = input[0] >> UNIT_QUANT_SHIFT; + e1 = a1 >> 1; + a1 -= e1; + + in0 = __msa_insert_h(in0, 0, a1); + in0 = __msa_insert_h(in0, 1, e1); + in0 = __msa_insert_h(in0, 2, e1); + in0 = __msa_insert_h(in0, 3, e1); + + in1 = in0 >> 1; + in0 -= in1; + + ADDBLK_ST4x4_UB(in0, in1, in1, in1, dst, dst_stride); +} + +void vpx_idct4x4_16_add_msa(const int16_t *input, uint8_t *dst, + int32_t dst_stride) { + v8i16 in0, in1, in2, in3; + + /* load vector elements of 4x4 block */ + LD4x4_SH(input, in0, in1, in2, in3); + /* rows */ + TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); + VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3); + /* columns */ + TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, in0, in1, in2, in3); + VP9_IDCT4x4(in0, in1, in2, in3, in0, in1, in2, in3); + /* rounding (add 2^3, divide by 2^4) */ + SRARI_H4_SH(in0, in1, in2, in3, 4); + ADDBLK_ST4x4_UB(in0, in1, in2, in3, dst, dst_stride); +} + +void vpx_idct4x4_1_add_msa(const int16_t *input, uint8_t *dst, + int32_t dst_stride) { + int16_t out; + v8i16 vec; + + out = ROUND_POWER_OF_TWO((input[0] * cospi_16_64), DCT_CONST_BITS); + out = ROUND_POWER_OF_TWO((out * cospi_16_64), DCT_CONST_BITS); + out = ROUND_POWER_OF_TWO(out, 4); + vec = __msa_fill_h(out); + + ADDBLK_ST4x4_UB(vec, vec, vec, vec, dst, dst_stride); +} |