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| author | Shivraj Patil <shivraj.patil@imgtec.com> | 2015-06-10 19:48:40 +0530 |
|---|---|---|
| committer | Michael Niedermayer <michaelni@gmx.at> | 2015-06-11 17:10:45 +0200 |
| commit | fb92f3ecb4d48a5612ee61aa39bd538cac9d08cf (patch) | |
| tree | f60612a94b011b4a0fefac3e5b5d9d5b5fff886f /libavutil/mips | |
| parent | 1d70b6fe1d9d67a35daf2ec4c653ba3eff5d31b7 (diff) | |
| download | ffmpeg-fb92f3ecb4d48a5612ee61aa39bd538cac9d08cf.tar.gz | |
avcodec/mips: MSA (MIPS-SIMD-Arch) optimizations for AVC idct functions
This patch adds MSA (MIPS-SIMD-Arch) optimizations for AVC idct functions in new file h264idct_msa.c
Adds new generic macros (needed for this patch) in libavutil/mips/generic_macros_msa.h
Signed-off-by: Shivraj Patil <shivraj.patil@imgtec.com>
Signed-off-by: Michael Niedermayer <michaelni@gmx.at>
Diffstat (limited to 'libavutil/mips')
| -rw-r--r-- | libavutil/mips/generic_macros_msa.h | 96 |
1 files changed, 96 insertions, 0 deletions
diff --git a/libavutil/mips/generic_macros_msa.h b/libavutil/mips/generic_macros_msa.h index 0f06c80c72..1d2d1d0946 100644 --- a/libavutil/mips/generic_macros_msa.h +++ b/libavutil/mips/generic_macros_msa.h @@ -403,6 +403,19 @@ } #define LD_SH16(...) LD_H16(v8i16, __VA_ARGS__) +/* Description : Load as 4x4 block of signed halfword elements from 1D source + data into 4 vectors (Each vector with 4 signed halfwords) + Arguments : Inputs - psrc + Outputs - out0, out1, out2, out3 +*/ +#define LD4x4_SH(psrc, out0, out1, out2, out3) \ +{ \ + out0 = LD_SH(psrc); \ + out2 = LD_SH(psrc + 8); \ + out1 = (v8i16) __msa_ilvl_d((v2i64) out0, (v2i64) out0); \ + out3 = (v8i16) __msa_ilvl_d((v2i64) out2, (v2i64) out2); \ +} + /* Description : Load 2 vectors of signed word elements with stride Arguments : Inputs - psrc (source pointer to load from) - stride @@ -2025,6 +2038,22 @@ out1 = in2 - in3; \ } +/* Description : Sign extend halfword elements from right half of the vector + Arguments : Inputs - in (input halfword vector) + Outputs - out (sign extended word vectors) + Return Type - signed word + Details : Sign bit of halfword elements from input vector 'in' is + extracted and interleaved with same vector 'in0' to generate + 4 word elements keeping sign intact +*/ +#define UNPCK_R_SH_SW(in, out) \ +{ \ + v8i16 sign_m; \ + \ + sign_m = __msa_clti_s_h((v8i16) in, 0); \ + out = (v4i32) __msa_ilvr_h(sign_m, (v8i16) in); \ +} + /* Description : Sign extend byte elements from input vector and return halfword results in pair of vectors Arguments : Inputs - in (1 input byte vector) @@ -2103,6 +2132,25 @@ out3 = in0 - in3; \ } +/* Description : Butterfly of 8 input vectors + Arguments : Inputs - in0 ... in7 + Outputs - out0 .. out7 + Details : Butterfly operation +*/ +#define BUTTERFLY_8(in0, in1, in2, in3, in4, in5, in6, in7, \ + out0, out1, out2, out3, out4, out5, out6, out7) \ +{ \ + out0 = in0 + in7; \ + out1 = in1 + in6; \ + out2 = in2 + in5; \ + out3 = in3 + in4; \ + \ + out4 = in3 - in4; \ + out5 = in2 - in5; \ + out6 = in1 - in6; \ + out7 = in0 - in7; \ +} + /* Description : Transposes input 4x4 byte block Arguments : Inputs - in0, in1, in2, in3 (input 4x4 byte block) Outputs - out0, out1, out2, out3 (output 4x4 byte block) @@ -2222,6 +2270,22 @@ out7 = (v16u8) __msa_ilvod_w((v4i32) tmp3_m, (v4i32) tmp2_m); \ } +/* Description : Transposes 4x4 block with half word elements in vectors + Arguments : Inputs - in0, in1, in2, in3 + Outputs - out0, out1, out2, out3 + Return Type - signed halfword + Details : +*/ +#define TRANSPOSE4x4_SH_SH(in0, in1, in2, in3, out0, out1, out2, out3) \ +{ \ + v8i16 s0_m, s1_m; \ + \ + ILVR_H2_SH(in1, in0, in3, in2, s0_m, s1_m); \ + ILVRL_W2_SH(s1_m, s0_m, out0, out2); \ + out1 = (v8i16) __msa_ilvl_d((v2i64) out0, (v2i64) out0); \ + out3 = (v8i16) __msa_ilvl_d((v2i64) out0, (v2i64) out2); \ +} + /* Description : Transposes 8x8 block with half word elements in vectors Arguments : Inputs - in0, in1, in2, in3, in4, in5, in6, in7 Outputs - out0, out1, out2, out3, out4, out5, out6, out7 @@ -2272,6 +2336,38 @@ out3 = (v4i32) __msa_ilvl_d((v2i64) s3_m, (v2i64) s1_m); \ } +/* Description : Add block 4x4 + Arguments : Inputs - in0, in1, in2, in3, pdst, stride + Outputs - + Return Type - unsigned bytes + Details : Least significant 4 bytes from each input vector are added to + the destination bytes, clipped between 0-255 and then stored. +*/ +#define ADDBLK_ST4x4_UB(in0, in1, in2, in3, pdst, stride) \ +{ \ + uint32_t src0_m, src1_m, src2_m, src3_m; \ + uint32_t out0_m, out1_m, out2_m, out3_m; \ + v8i16 inp0_m, inp1_m, res0_m, res1_m; \ + v16i8 dst0_m = { 0 }; \ + v16i8 dst1_m = { 0 }; \ + v16i8 zero_m = { 0 }; \ + \ + ILVR_D2_SH(in1, in0, in3, in2, inp0_m, inp1_m) \ + LW4(pdst, stride, src0_m, src1_m, src2_m, src3_m); \ + INSERT_W2_SB(src0_m, src1_m, dst0_m); \ + INSERT_W2_SB(src2_m, src3_m, dst1_m); \ + ILVR_B2_SH(zero_m, dst0_m, zero_m, dst1_m, res0_m, res1_m); \ + ADD2(res0_m, inp0_m, res1_m, inp1_m, res0_m, res1_m); \ + CLIP_SH2_0_255(res0_m, res1_m); \ + PCKEV_B2_SB(res0_m, res0_m, res1_m, res1_m, dst0_m, dst1_m); \ + \ + out0_m = __msa_copy_u_w((v4i32) dst0_m, 0); \ + out1_m = __msa_copy_u_w((v4i32) dst0_m, 1); \ + out2_m = __msa_copy_u_w((v4i32) dst1_m, 0); \ + out3_m = __msa_copy_u_w((v4i32) dst1_m, 1); \ + SW4(out0_m, out1_m, out2_m, out3_m, pdst, stride); \ +} + /* Description : Pack even elements of input vectors & xor with 128 Arguments : Inputs - in0, in1 Outputs - out_m |