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commit 682ea4829e631d52f489cba7a59aa991ca5dc773 Author: Niklas Haas <[email protected]> AuthorDate: Sat Nov 7 15:45:38 2026 +0100 Commit: Niklas Haas <[email protected]> CommitDate: Sun Nov 8 01:48:12 2026 +0000 swscale/x86/ops_common: simplify stack layout Signed-off-by: Niklas Haas <[email protected]> --- libswscale/x86/ops_common.asm | 22 ++++++++-------------- 1 file changed, 8 insertions(+), 14 deletions(-) diff --git a/libswscale/x86/ops_common.asm b/libswscale/x86/ops_common.asm index edc4fd847e..f7ce1e0f84 100644 --- a/libswscale/x86/ops_common.asm +++ b/libswscale/x86/ops_common.asm @@ -31,17 +31,11 @@ cglobal sws_process%1_x86, 6, 7 + 2 * %1, 16 ; execq, implq, bxd, yd as defined in ops_include.asm ; bx_end and y_end are initially in tmp0d / tmp1d ; (see SwsOpFunc signature) - ; - ; Stack layout: - ; [rsp + 8] = [qword] impl (restore implq after chain) - ; [rsp + 16] = [dword] bx start (restore after line finish) - ; [rsp + 20] = [dword] bx end (loop counter limit) - ; [rsp + 24] = [dword] y end (loop counter limit) sub rsp, 32 - mov [rsp + 16], bxd - mov [rsp + 20], tmp0d ; bx_end - mov [rsp + 24], tmp1d ; y_end - mov [rsp + 8], implq + mov [rsp + 0], implq ; [qword] impl (restore implq after chain) + mov [rsp + 8], bxd ; [dword] bx_start (restore after line finish) + mov [rsp + 12], tmp0d ; [dword] bx_end (loop counter limit) + mov [rsp + 16], tmp1d ; [dword] y_end (loop counter limit) movsxdifnidn bxq, bxd movsxdifnidn yq, yd @@ -56,13 +50,13 @@ IF %1 > 2, mov out2q, [execq + SwsOpExec.out2] IF %1 > 3, mov out3q, [execq + SwsOpExec.out3] .loop: call [implq] ; call into op chain - mov implq, [rsp + 8] + mov implq, [rsp] inc bxd - cmp bxd, [rsp + 20] + cmp bxd, [rsp + 12] jne .loop ; end of line inc yd - cmp yd, [rsp + 24] + cmp yd, [rsp + 16] je .end ; bump addresses to point to start of next line add in0q, [execq + SwsOpExec.in_bump0] @@ -73,7 +67,7 @@ IF %1 > 3, add in3q, [execq + SwsOpExec.in_bump3] IF %1 > 1, add out1q, [execq + SwsOpExec.out_bump1] IF %1 > 2, add out2q, [execq + SwsOpExec.out_bump2] IF %1 > 3, add out3q, [execq + SwsOpExec.out_bump3] - mov bxd, [rsp + 16] + mov bxd, [rsp + 8] ; conditionally apply y bump (if non-NULL) mov tmp0q, [execq + SwsOpExec.in_bump_y] test tmp0q, tmp0q -- To stop receiving notification emails like this one, please contact [email protected]. _______________________________________________ ffmpeg-cvslog mailing list -- [email protected] To unsubscribe send an email to [email protected]
