diff --git a/kernel/trunk/drivers/infinity.asm b/kernel/trunk/drivers/infinity.asm index 85fb79961..2eb64e735 100644 --- a/kernel/trunk/drivers/infinity.asm +++ b/kernel/trunk/drivers/infinity.asm @@ -1021,7 +1021,7 @@ proc stop_buffer stdcall, str:dword ret endp -; parm +; param ; eax= mix_list align 4 diff --git a/kernel/trunk/drivers/mixer.asm b/kernel/trunk/drivers/mixer.asm index 02a50f337..a204e2606 100644 --- a/kernel/trunk/drivers/mixer.asm +++ b/kernel/trunk/drivers/mixer.asm @@ -36,9 +36,17 @@ proc new_mix stdcall, output:dword test eax, eax je .done + cmp eax, 1 + ja @F + ;use fast path + mov edi, [output] + lea edx, [mix_list] + call mix_fast + jmp .next +@@: lea ebx, [mix_list] stdcall mix_all, [output], ebx, eax -@@: +.next: add [output], 512 dec [main_count] jnz .mix @@ -47,10 +55,6 @@ proc new_mix stdcall, output:dword and eax, -16 call FpuRestore ret -.copy: - lea eax, [mix_list] - stdcall copy_mem, [output], [eax] - jmp @B .done: mov ecx, [main_count] shl ecx, 7 ;ecx*= 512/4 @@ -276,8 +280,8 @@ proc mix_all stdcall, dest:dword, list:dword, count:dword psrad xmm0, 16 psrad xmm1, 16 - cvtdq2ps xmm0, xmm0 ;time to use all power - cvtdq2ps xmm1, xmm1 ;of the dark side + cvtdq2ps xmm0, xmm0 + cvtdq2ps xmm1, xmm1 mulps xmm0, xmm2 mulps xmm1, xmm2 @@ -326,6 +330,48 @@ proc mix_all stdcall, dest:dword, list:dword, count:dword ret endp +; param +; edi = dest +; edx = mix_list + +align 4 +mix_fast: + + mov ebx, 32 + mov eax, [edx] + + movss xmm2, [edx+4] ; vol Lf + movss xmm3, [edx+8] ; vol Rf + shufps xmm2, xmm3, 0 ; Rf Rf Lf Lf + shufps xmm2, xmm2, 0x88 ; volume level Rf Lf Rf Lf +.mix: + movdqa xmm1, [eax] ; R3w L3w R2w L2w R1w L1w R0w L0w + add eax, 16 + punpcklwd xmm0, xmm1 ; R1w R1w L1w L1W R0w R0w L0w L0w + punpckhwd xmm1, xmm1 ; R3w R3w L3w L3w R2w R2w L2w L2w + + psrad xmm0, 16 ; R1d L1d R0d L0d + psrad xmm1, 16 ; R3d L3d R2d L2d + + cvtdq2ps xmm0, xmm0 ; time to use all power + cvtdq2ps xmm1, xmm1 ; of the dark side + + mulps xmm0, xmm2 ; R1f' L1f' R0f' L0f' + mulps xmm1, xmm2 ; R3f' L3f' R2f' L2f' + + cvtps2dq xmm0, xmm0 ; R1d' L1d' R0d' L0d' + cvtps2dq xmm1, xmm1 ; R3d' L3d' R2d' L2d' + packssdw xmm0, xmm0 ; R1w' L1w' R0w' L0w' R1w' L1w' R0w' L0w' + packssdw xmm1, xmm1 ; R3w' L3w' R2w' L2w' R3w' L3w' R2w' L2w' + punpcklqdq xmm0, xmm1 ; R3w' L3w' R2w' L2w' R1w' L1w' R0w' L0w' + movntdq [edi], xmm0 + + add edi, 16 + dec ebx + jnz .mix + + ret + else ; fixed point mmx version align 4