Janne Grunau <[email protected]> writes:
> On 2011-12-10 15:43:55 +0000, Mans Rullgard wrote:
>> Signed-off-by: Mans Rullgard <[email protected]>
>> ---
>> libavcodec/arm/asm.S | 6 +++
>> libavcodec/arm/rv40dsp_init_neon.c | 10 ++++
>> libavcodec/arm/rv40dsp_neon.S | 84
>> ++++++++++++++++++++++++++++++++++++
>> 3 files changed, 100 insertions(+), 0 deletions(-)
>>
>> diff --git a/libavcodec/arm/asm.S b/libavcodec/arm/asm.S
>> index a124918..d9f9051 100644
>> --- a/libavcodec/arm/asm.S
>> +++ b/libavcodec/arm/asm.S
>> @@ -113,6 +113,12 @@ T add \rn, \rn, \rm
>> T ldr \rt, [\rn]
>> .endm
>>
>> +.macro ldr_dpre rt, rn, rm:vararg
>> +A ldr \rt, [\rn, -\rm]!
>> +T add \rn, \rn, \rm
>
> sub?
I should probably test these things...
>> +function ff_rv40_h_loop_filter_strength_neon, export=1
>> + pkhbt r2, r3, r2, lsl #18
>> +
>> + ldr r3, [r0]
>> + ldr_dpre r12, r0, r1
>> + teq r3, r12
>> + beq 1f
>> +
>> + sub r0, r0, r1, lsl #1
>> +
>> + vld1.32 {d4[]}, [r0,:32], r1 @ -3
>> + vld1.32 {d0[]}, [r0,:32], r1 @ -2
>> + vld1.32 {d4[1]}, [r0,:32], r1 @ -1
>> + vld1.32 {d5[]}, [r0,:32], r1 @ 0
>> + vld1.32 {d1[]}, [r0,:32], r1 @ 1
>> + vld1.32 {d5[0]}, [r0,:32], r1 @ 2
>> +
>> + vpaddl.u8 q8, q0 @ -2, -2, -2, -2, 1, 1,
>> 1, 1
>> + vpaddl.u8 q9, q2 @ -1, -1, -3, -3, 0, 0,
>> 2, 2
>
> comment is wrong, it's @ -1, -1, -3, -3, 2, 2, 0, 0
It's actually -3, -3, -1, -1, 2, 2, 0, 0. The comment further down
is correct, however.
>> + vdup.32 d30, r2 @ beta2, beta << 2
>> + vpadd.u16 d16, d16, d17 @ -2, -2, 1, 1
>> + vpadd.u16 d18, d18, d19 @ -3, -1, 2, 0
>> + vabd.u16 d16, d18, d16
>> + vclt.u16 d16, d16, d30
--
Måns Rullgård
[email protected]
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