diff options
Diffstat (limited to 'vpx_dsp/mips/postproc_msa.c')
-rw-r--r-- | vpx_dsp/mips/postproc_msa.c | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/vpx_dsp/mips/postproc_msa.c b/vpx_dsp/mips/postproc_msa.c new file mode 100644 index 000000000..366770c0d --- /dev/null +++ b/vpx_dsp/mips/postproc_msa.c @@ -0,0 +1,59 @@ +/* + * 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 <stdlib.h> +#include "./macros_msa.h" + +void vpx_plane_add_noise_msa(uint8_t *start_ptr, char *noise, + char blackclamp[16], char whiteclamp[16], + char bothclamp[16], uint32_t width, + uint32_t height, int32_t pitch) { + uint32_t i, j; + + for (i = 0; i < height / 2; ++i) { + uint8_t *pos0_ptr = start_ptr + (2 * i) * pitch; + int8_t *ref0_ptr = (int8_t *)(noise + (rand() & 0xff)); + uint8_t *pos1_ptr = start_ptr + (2 * i + 1) * pitch; + int8_t *ref1_ptr = (int8_t *)(noise + (rand() & 0xff)); + for (j = width / 16; j--;) { + v16i8 temp00_s, temp01_s; + v16u8 temp00, temp01, black_clamp, white_clamp; + v16u8 pos0, ref0, pos1, ref1; + v16i8 const127 = __msa_ldi_b(127); + + pos0 = LD_UB(pos0_ptr); + ref0 = LD_UB(ref0_ptr); + pos1 = LD_UB(pos1_ptr); + ref1 = LD_UB(ref1_ptr); + black_clamp = (v16u8)__msa_fill_b(blackclamp[0]); + white_clamp = (v16u8)__msa_fill_b(whiteclamp[0]); + temp00 = (pos0 < black_clamp); + pos0 = __msa_bmnz_v(pos0, black_clamp, temp00); + temp01 = (pos1 < black_clamp); + pos1 = __msa_bmnz_v(pos1, black_clamp, temp01); + XORI_B2_128_UB(pos0, pos1); + temp00_s = __msa_adds_s_b((v16i8)white_clamp, const127); + temp00 = (v16u8)(temp00_s < pos0); + pos0 = (v16u8)__msa_bmnz_v((v16u8)pos0, (v16u8)temp00_s, temp00); + temp01_s = __msa_adds_s_b((v16i8)white_clamp, const127); + temp01 = (temp01_s < pos1); + pos1 = (v16u8)__msa_bmnz_v((v16u8)pos1, (v16u8)temp01_s, temp01); + XORI_B2_128_UB(pos0, pos1); + pos0 += ref0; + ST_UB(pos0, pos0_ptr); + pos1 += ref1; + ST_UB(pos1, pos1_ptr); + pos0_ptr += 16; + pos1_ptr += 16; + ref0_ptr += 16; + ref1_ptr += 16; + } + } +} |