mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-26 03:30:46 +00:00
c660bfb129
2. Added the svn:ignore properties to clean up the output of "svn update" so that it doesn't show some unversioned files anymore sush as compiled binaries and object files(*.a). 3. Converted the end-of-line charapter sequences from Windows(CR LF) to Unix format(LF). It used to be a mixture of both styles that often confuse some programs. If some files have to be in Windows format, you should add the svn:eol-style on them(svn propset svn:eol-style native polymer/eduke32/source/thefile.c). git-svn-id: https://svn.eduke32.com/eduke32@854 1a8010ca-5511-0410-912e-c29ae57300e0
202 lines
4.4 KiB
Text
202 lines
4.4 KiB
Text
.586P
|
|
|
|
CODE SEGMENT PUBLIC USE32 'DATA'
|
|
ASSUME cs:CODE,ds:CODE
|
|
|
|
;================
|
|
;
|
|
; MV_16BitReverb
|
|
;
|
|
;================
|
|
|
|
; eax - source position
|
|
; edx - destination position
|
|
; ebx - Volume table
|
|
; ecx - number of samples
|
|
|
|
ALIGN 16
|
|
PUBLIC _MV_16BitReverb
|
|
_MV_16BitReverb:
|
|
pushad
|
|
mov eax, dword ptr [esp + 0*4 + 9*4]
|
|
mov edx, dword ptr [esp + 1*4 + 9*4]
|
|
mov ebx, dword ptr [esp + 2*4 + 9*4]
|
|
mov ecx, dword ptr [esp + 3*4 + 9*4]
|
|
|
|
mov esi, eax
|
|
lea edi, [edx - 2]
|
|
|
|
;ALIGN 4
|
|
rev16loop:
|
|
movzx eax, word ptr [esi] ; get sample
|
|
add edi, 2
|
|
|
|
movzx edx, ah
|
|
sub ah, ah
|
|
|
|
movsx eax, byte ptr [2*eax+ebx+1] ; volume translate low byte of sample
|
|
xor edx, 80h
|
|
|
|
movsx edx, word ptr [2*edx+ebx] ; volume translate high byte of sample
|
|
add esi, 2
|
|
|
|
lea eax, [ eax + edx + 80h ] ; mix high byte of sample
|
|
dec ecx ; decrement count
|
|
|
|
mov [edi], ax ; write new sample to destination
|
|
jnz rev16loop ; loop
|
|
|
|
popad
|
|
ret
|
|
|
|
|
|
;================
|
|
;
|
|
; MV_8BitReverb
|
|
;
|
|
;================
|
|
|
|
; eax - source position
|
|
; edx - destination position
|
|
; ebx - Volume table
|
|
; ecx - number of samples
|
|
|
|
ALIGN 16
|
|
PUBLIC _MV_8BitReverb
|
|
_MV_8BitReverb:
|
|
pushad
|
|
mov eax, dword ptr [esp + 0*4 + 9*4]
|
|
mov edx, dword ptr [esp + 1*4 + 9*4]
|
|
mov ebx, dword ptr [esp + 2*4 + 9*4]
|
|
mov ecx, dword ptr [esp + 3*4 + 9*4]
|
|
|
|
mov esi, eax
|
|
lea edi, [edx - 1]
|
|
|
|
xor eax, eax
|
|
|
|
;ALIGN 4
|
|
rev8loop:
|
|
; movzx eax, byte ptr [esi] ; get sample
|
|
mov al, byte ptr [esi] ; get sample
|
|
inc edi
|
|
|
|
; movsx eax, byte ptr [2*eax+ebx] ; volume translate sample
|
|
mov al, byte ptr [2*eax+ebx] ; volume translate sample
|
|
inc esi
|
|
|
|
; add eax, 80h
|
|
add al, 80h
|
|
dec ecx ; decrement count
|
|
|
|
mov [edi], al ; write new sample to destination
|
|
jnz rev8loop ; loop
|
|
|
|
popad
|
|
ret
|
|
|
|
|
|
;================
|
|
;
|
|
; MV_16BitReverbFast
|
|
;
|
|
;================
|
|
|
|
; eax - source position
|
|
; edx - destination position
|
|
; ebx - number of samples
|
|
; ecx - shift
|
|
|
|
ALIGN 16
|
|
PUBLIC _MV_16BitReverbFast
|
|
_MV_16BitReverbFast:
|
|
pushad
|
|
mov eax, dword ptr [esp + 0*4 + 9*4]
|
|
mov edx, dword ptr [esp + 1*4 + 9*4]
|
|
mov ebx, dword ptr [esp + 2*4 + 9*4]
|
|
mov ecx, dword ptr [esp + 3*4 + 9*4]
|
|
|
|
mov esi, eax
|
|
mov eax,OFFSET rpatch16+3
|
|
|
|
mov [eax],cl
|
|
lea edi, [edx - 2]
|
|
|
|
;ALIGN 4
|
|
frev16loop:
|
|
mov ax, word ptr [esi] ; get sample
|
|
add edi, 2
|
|
|
|
rpatch16:
|
|
sar ax, 5 ;;;;Add 1 before shift
|
|
add esi, 2
|
|
|
|
mov [edi], ax ; write new sample to destination
|
|
dec ebx ; decrement count
|
|
|
|
jnz frev16loop ; loop
|
|
|
|
popad
|
|
ret
|
|
|
|
|
|
;================
|
|
;
|
|
; MV_8BitReverbFast
|
|
;
|
|
;================
|
|
|
|
; eax - source position
|
|
; edx - destination position
|
|
; ebx - number of samples
|
|
; ecx - shift
|
|
|
|
ALIGN 16
|
|
PUBLIC _MV_8BitReverbFast
|
|
_MV_8BitReverbFast:
|
|
pushad
|
|
mov eax, dword ptr [esp + 0*4 + 9*4]
|
|
mov edx, dword ptr [esp + 1*4 + 9*4]
|
|
mov ebx, dword ptr [esp + 2*4 + 9*4]
|
|
mov ecx, dword ptr [esp + 3*4 + 9*4]
|
|
|
|
mov esi, eax
|
|
mov eax,OFFSET rpatch8+2
|
|
|
|
mov edi, edx
|
|
mov edx, 80h
|
|
|
|
mov [eax],cl
|
|
mov eax, 80h
|
|
|
|
shr eax, cl
|
|
|
|
dec edi
|
|
sub edx, eax
|
|
|
|
;ALIGN 4
|
|
frev8loop:
|
|
mov al, byte ptr [esi] ; get sample
|
|
inc esi
|
|
|
|
mov ecx, eax
|
|
inc edi
|
|
|
|
rpatch8:
|
|
shr eax, 3
|
|
xor ecx, 80h ; flip the sign bit
|
|
|
|
shr ecx, 7 ; shift the sign down to 1
|
|
add eax, edx
|
|
|
|
add eax, ecx ; add sign bit to round to 0
|
|
dec ebx ; decrement count
|
|
|
|
mov [edi], al ; write new sample to destination
|
|
jnz frev8loop ; loop
|
|
|
|
popad
|
|
ret
|
|
|
|
CODE ENDS
|
|
END
|