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| author | Måns Rullgård <mans@mansr.com> | 2009-06-17 22:33:04 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2009-06-17 22:33:04 +0000 |
| commit | 2da4e5e3e17ccf87b85f0956e29d311e0cc71008 (patch) | |
| tree | b817e849abd3c983fee6b4218a1ad2bf9cad0a67 /libavcodec/arm/h264dsp_neon.S | |
| parent | f4ca612fbd9549e74dafa1c5bfb3e7b33e4b38e2 (diff) | |
ARM: slightly faster NEON H264 horizontal loop filter
Originally committed as revision 19216 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/arm/h264dsp_neon.S')
| -rw-r--r-- | libavcodec/arm/h264dsp_neon.S | 49 |
1 files changed, 25 insertions, 24 deletions
diff --git a/libavcodec/arm/h264dsp_neon.S b/libavcodec/arm/h264dsp_neon.S index 44a137315b..03e21f1864 100644 --- a/libavcodec/arm/h264dsp_neon.S +++ b/libavcodec/arm/h264dsp_neon.S @@ -37,6 +37,13 @@ vtrn.8 \r6, \r7 .endm + .macro transpose_4x4 r0 r1 r2 r3 + vtrn.16 \r0, \r2 + vtrn.16 \r1, \r3 + vtrn.8 \r0, \r1 + vtrn.8 \r2, \r3 + .endm + .macro swap4 r0 r1 r2 r3 r4 r5 r6 r7 vswp \r0, \r4 vswp \r1, \r5 @@ -469,35 +476,29 @@ function ff_h264_h_loop_filter_luma_neon, export=1 transpose_8x8 q3, q10, q9, q8, q0, q1, q2, q13 align_push_regs - sub sp, sp, #16 - vst1.64 {d4, d5}, [sp,:128] - sub sp, sp, #16 - vst1.64 {d20,d21}, [sp,:128] h264_loop_filter_luma - vld1.64 {d20,d21}, [sp,:128]! - vld1.64 {d4, d5}, [sp,:128]! - - transpose_8x8 q3, q10, q4, q8, q0, q5, q2, q13 + transpose_4x4 q4, q8, q0, q5 sub r0, r0, r1, lsl #4 - vst1.64 {d6}, [r0], r1 - vst1.64 {d20}, [r0], r1 - vst1.64 {d8}, [r0], r1 - vst1.64 {d16}, [r0], r1 - vst1.64 {d0}, [r0], r1 - vst1.64 {d10}, [r0], r1 - vst1.64 {d4}, [r0], r1 - vst1.64 {d26}, [r0], r1 - vst1.64 {d7}, [r0], r1 - vst1.64 {d21}, [r0], r1 - vst1.64 {d9}, [r0], r1 - vst1.64 {d17}, [r0], r1 - vst1.64 {d1}, [r0], r1 - vst1.64 {d11}, [r0], r1 - vst1.64 {d5}, [r0], r1 - vst1.64 {d27}, [r0], r1 + add r0, r0, #2 + vst1.32 {d8[0]}, [r0], r1 + vst1.32 {d16[0]}, [r0], r1 + vst1.32 {d0[0]}, [r0], r1 + vst1.32 {d10[0]}, [r0], r1 + vst1.32 {d8[1]}, [r0], r1 + vst1.32 {d16[1]}, [r0], r1 + vst1.32 {d0[1]}, [r0], r1 + vst1.32 {d10[1]}, [r0], r1 + vst1.32 {d9[0]}, [r0], r1 + vst1.32 {d17[0]}, [r0], r1 + vst1.32 {d1[0]}, [r0], r1 + vst1.32 {d11[0]}, [r0], r1 + vst1.32 {d9[1]}, [r0], r1 + vst1.32 {d17[1]}, [r0], r1 + vst1.32 {d1[1]}, [r0], r1 + vst1.32 {d11[1]}, [r0], r1 align_pop_regs bx lr |