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arm: hevc_idct: Tune the add_res_8x8 and add_res_32x32 functions
Before: Cortex A7 A8 A9 A53 hevc_add_res_8x8_8_neon: 116.0 58.7 80.2 90.7 hevc_add_res_32x32_8_neon: 1230.0 737.5 1187.5 974.4 After: hevc_add_res_8x8_8_neon: 97.7 57.0 73.7 80.0 hevc_add_res_32x32_8_neon: 1216.0 698.7 1127.5 827.1 Signed-off-by: Martin Storsjö <martin@martin.st>
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@ -51,20 +51,21 @@ function ff_hevc_add_residual_4x4_8_neon, export=1
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endfunc
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function ff_hevc_add_residual_8x8_8_neon, export=1
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add r12, r0, r2
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add r2, r2, r2
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mov r3, #8
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1: subs r3, #2
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vld1.16 {q0-q1}, [r1, :128]!
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vld1.8 {d16}, [r0, :64]
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add r12, r0, r2
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vld1.8 {d16}, [r0, :64]
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vld1.8 {d17}, [r12, :64]
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vmovl.u8 q9, d16
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vld1.16 {q0-q1}, [r1, :128]!
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vmovl.u8 q8, d17
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vqadd.s16 q0, q9
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vqadd.s16 q1, q8
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vqmovun.s16 d0, q0
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vqmovun.s16 d1, q1
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vst1.8 d0, [r0, :64], r2
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vst1.8 d1, [r0, :64], r2
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vst1.8 d0, [r0, :64], r2
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vst1.8 d1, [r12, :64], r2
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bne 1b
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bx lr
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endfunc
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@ -97,24 +98,42 @@ function ff_hevc_add_residual_16x16_8_neon, export=1
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endfunc
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function ff_hevc_add_residual_32x32_8_neon, export=1
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vpush {q4-q7}
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add r12, r0, r2
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add r2, r2, r2
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mov r3, #32
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1: subs r3, #1
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vldm r1!, {q0-q3}
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vld1.8 {q8, q9}, [r0, :128]
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vmovl.u8 q10, d16
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vmovl.u8 q11, d17
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vmovl.u8 q12, d18
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vmovl.u8 q13, d19
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vqadd.s16 q0, q10
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vqadd.s16 q1, q11
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vqadd.s16 q2, q12
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vqadd.s16 q3, q13
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1: subs r3, #2
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vld1.8 {q12, q13}, [r0, :128]
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vmovl.u8 q8, d24
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vmovl.u8 q9, d25
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vld1.8 {q14, q15}, [r12, :128]
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vmovl.u8 q10, d26
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vmovl.u8 q11, d27
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vmovl.u8 q12, d28
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vldm r1!, {q0-q7}
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vmovl.u8 q13, d29
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vmovl.u8 q14, d30
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vmovl.u8 q15, d31
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vqadd.s16 q0, q8
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vqadd.s16 q1, q9
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vqadd.s16 q2, q10
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vqadd.s16 q3, q11
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vqadd.s16 q4, q12
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vqadd.s16 q5, q13
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vqadd.s16 q6, q14
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vqadd.s16 q7, q15
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vqmovun.s16 d0, q0
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vqmovun.s16 d1, q1
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vqmovun.s16 d2, q2
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vqmovun.s16 d3, q3
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vqmovun.s16 d4, q4
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vqmovun.s16 d5, q5
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vst1.8 {q0, q1}, [r0, :128], r2
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vqmovun.s16 d6, q6
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vqmovun.s16 d7, q7
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vst1.8 {q2, q3}, [r12, :128], r2
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bne 1b
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vpop {q4-q7}
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bx lr
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endfunc
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