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| author | Justin Ruggles <justin.ruggles@gmail.com> | 2013-01-02 13:34:48 -0500 |
|---|---|---|
| committer | Justin Ruggles <justin.ruggles@gmail.com> | 2013-01-05 16:14:35 -0500 |
| commit | 95d01c3f1c33c079db04e24133ba4a6b00d62d4a (patch) | |
| tree | db12e7200e5b7172cecf69cbfad704ea0780241b /libavresample | |
| parent | f73f76fd202b310e8e1d0215b2e0cf038cd18c4a (diff) | |
| download | ffmpeg-streaming-95d01c3f1c33c079db04e24133ba4a6b00d62d4a.zip ffmpeg-streaming-95d01c3f1c33c079db04e24133ba4a6b00d62d4a.tar.gz | |
x86: lavr: use the x86inc.asm automatic stack alignment in mixing functions
CC:libav-stable@libav.org
Diffstat (limited to 'libavresample')
| -rw-r--r-- | libavresample/x86/audio_mix.asm | 35 |
1 files changed, 9 insertions, 26 deletions
diff --git a/libavresample/x86/audio_mix.asm b/libavresample/x86/audio_mix.asm index daf0a7b..8a298e2 100644 --- a/libavresample/x86/audio_mix.asm +++ b/libavresample/x86/audio_mix.asm @@ -260,29 +260,20 @@ MIX_1_TO_2_S16P_FLT %else %assign matrix_elements_stack 0 %endif +%assign matrix_stack_size matrix_elements_stack * mmsize -cglobal mix_%1_to_%2_%3_flt, 3,in_channels+2,needed_mmregs+matrix_elements_mm, src0, src1, len, src2, src3, src4, src5, src6, src7 +%assign needed_stack_size -1 * matrix_stack_size +%if ARCH_X86_32 && in_channels >= 7 +%assign needed_stack_size needed_stack_size - 16 +%endif -; get aligned stack space if needed -%if matrix_elements_stack > 0 - %if mmsize == 32 - %assign bkpreg %1 + 1 - %define bkpq r %+ bkpreg %+ q - mov bkpq, rsp - and rsp, ~(mmsize-1) - sub rsp, matrix_elements_stack * mmsize - %else - %assign matrix_stack_size matrix_elements_stack * mmsize - %assign pad matrix_stack_size + (mmsize - gprsize) - (stack_offset & (mmsize - gprsize)) - ; on x86-32 for 7 and 8 channels we need more stack space for src pointers - %if ARCH_X86_32 && in_channels >= 7 - %assign pad pad + 0x10 +cglobal mix_%1_to_%2_%3_flt, 3,in_channels+2,needed_mmregs+matrix_elements_mm, needed_stack_size, src0, src1, len, src2, src3, src4, src5, src6, src7 + +; define src pointers on stack if needed +%if matrix_elements_stack > 0 && ARCH_X86_32 && in_channels >= 7 %define src5m [rsp+matrix_stack_size+0] %define src6m [rsp+matrix_stack_size+4] %define src7m [rsp+matrix_stack_size+8] - %endif - SUB rsp, pad - %endif %endif ; load matrix pointers @@ -463,14 +454,6 @@ cglobal mix_%1_to_%2_%3_flt, 3,in_channels+2,needed_mmregs+matrix_elements_mm, s add lenq, mmsize jl .loop -; restore stack pointer -%if matrix_elements_stack > 0 - %if mmsize == 32 - mov rsp, bkpq - %else - ADD rsp, pad - %endif -%endif ; zero ymm high halves %if mmsize == 32 vzeroupper |
