diff options
| author | Måns Rullgård <mans@mansr.com> | 2010-02-09 16:13:45 +0000 |
|---|---|---|
| committer | Måns Rullgård <mans@mansr.com> | 2010-02-09 16:13:45 +0000 |
| commit | 0c28474c92093d9b8a06ef7f6cf3d1c974422aad (patch) | |
| tree | 26ec6ba4508ce44ae01a3eb9fe79c6332a97350a /libavcodec/arm/dsputil_armv6.S | |
| parent | 3132614305a4591c75ac20e4f13d1398e17375b4 (diff) | |
ARMv6 optimised sse16
Originally committed as revision 21703 to svn://svn.ffmpeg.org/ffmpeg/trunk
Diffstat (limited to 'libavcodec/arm/dsputil_armv6.S')
| -rw-r--r-- | libavcodec/arm/dsputil_armv6.S | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/libavcodec/arm/dsputil_armv6.S b/libavcodec/arm/dsputil_armv6.S index 800d8f291c..161a387f95 100644 --- a/libavcodec/arm/dsputil_armv6.S +++ b/libavcodec/arm/dsputil_armv6.S @@ -513,3 +513,54 @@ function ff_pix_abs8_armv6, export=1 add r0, r0, lr pop {r4-r9, pc} .endfunc + +function ff_sse16_armv6, export=1 + ldr r12, [sp] + push {r4-r9, lr} + mov r0, #0 +1: + ldrd r4, r5, [r1] + ldr r8, [r2] + uxtb16 lr, r4 + uxtb16 r4, r4, ror #8 + uxtb16 r9, r8 + uxtb16 r8, r8, ror #8 + ldr r7, [r2, #4] + usub16 lr, lr, r9 + usub16 r4, r4, r8 + smlad r0, lr, lr, r0 + uxtb16 r6, r5 + uxtb16 lr, r5, ror #8 + uxtb16 r8, r7 + uxtb16 r9, r7, ror #8 + smlad r0, r4, r4, r0 + ldrd r4, r5, [r1, #8] + usub16 r6, r6, r8 + usub16 r8, lr, r9 + ldr r7, [r2, #8] + smlad r0, r6, r6, r0 + uxtb16 lr, r4 + uxtb16 r4, r4, ror #8 + uxtb16 r9, r7 + uxtb16 r7, r7, ror #8 + smlad r0, r8, r8, r0 + ldr r8, [r2, #12] + usub16 lr, lr, r9 + usub16 r4, r4, r7 + smlad r0, lr, lr, r0 + uxtb16 r6, r5 + uxtb16 r5, r5, ror #8 + uxtb16 r9, r8 + uxtb16 r8, r8, ror #8 + smlad r0, r4, r4, r0 + usub16 r6, r6, r9 + usub16 r5, r5, r8 + smlad r0, r6, r6, r0 + add r1, r1, r3 + add r2, r2, r3 + subs r12, r12, #1 + smlad r0, r5, r5, r0 + bgt 1b + + pop {r4-r9, pc} +.endfunc |