On 12/05/2024 20:51, James Almer wrote:
flac_wasted_32_c: 851.3
flac_wasted_32_sse2: 41.3
Signed-off-by: James Almer <jamr...@gmail.com>
---
libavcodec/x86/flacdsp.asm | 24 ++++++++++++++++++++++++
libavcodec/x86/flacdsp_init.c | 3 +++
2 files changed, 27 insertions(+)
diff --git a/libavcodec/x86/flacdsp.asm b/libavcodec/x86/flacdsp.asm
index f38eb7db76..21b2439bc0 100644
--- a/libavcodec/x86/flacdsp.asm
+++ b/libavcodec/x86/flacdsp.asm
@@ -89,6 +89,30 @@ LPC_32 sse4, 32, psrlq
LPC_32 xop, 32, psrlq
%endif
+INIT_XMM sse2
+cglobal flac_wasted_32, 3,3,5, decoded, wasted, len
+ shl lend, 2
+ add decodedq, lenq
+ neg lenq
+ movd m4, wastedd
+ALIGN 16
+.loop:
+ mova m0, [decodedq+lenq+mmsize*0]
+ mova m1, [decodedq+lenq+mmsize*1]
+ mova m2, [decodedq+lenq+mmsize*2]
+ mova m3, [decodedq+lenq+mmsize*3]
+ pslld m0, m4
+ pslld m1, m4
+ pslld m2, m4
+ pslld m3, m4
+ mova [decodedq+lenq+mmsize*0], m0
+ mova [decodedq+lenq+mmsize*1], m1
+ mova [decodedq+lenq+mmsize*2], m2
+ mova [decodedq+lenq+mmsize*3], m3
+ add lenq, mmsize * 4
+ jl .loop
+ RET
Looks good
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