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Port non-pow2 ysize texture mapping routines to MASM, untested.
It's mostly taking over the NASM code, with a couple of changes: - declarations for externals and globals are slightly different - the masm seems to have e.g. "dword ptr [...]" where the nasm has only "dword [...]", though the masm also has a couple of the latter. The "ptr" modifier seems kinda redundant to me, but I added it to every indirection anyway. git-svn-id: https://svn.eduke32.com/eduke32@3033 1a8010ca-5511-0410-912e-c29ae57300e0
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helixhorned
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1 changed files with 111 additions and 0 deletions
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@ -39,6 +39,7 @@ EXTRN _espbak : dword
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EXTRN _pow2char : near
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EXTRN _pow2long : near
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EXTRN _globaltilesizy : dword
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; Some macros to help make cdecl calling easier to manage
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CDECLBEGIN MACRO noi:=<0>
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@ -188,6 +189,12 @@ ALIGN 16
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PUBLIC _setvlinebpl
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_setvlinebpl:
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CDECLBEGINSET 1
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mov dword ptr [np2_fixchain1a+2], eax
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mov dword ptr [np2_fixchain1b+2], eax
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mov dword ptr [mnp2_fixchain1b+2], eax
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mov dword ptr [tnp2_fixchain1b+2], eax
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mov dword ptr [fixchain1a+2], eax
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mov dword ptr [fixchain1b+2], eax
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mov dword ptr [fixchain1m+2], eax
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@ -585,6 +592,35 @@ fixchain1b: add edi, 320
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CDECLENDSET 6
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ret
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ALIGN 16
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PUBLIC _vlineasm1nonpow2
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_vlineasm1nonpow2:
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CDECLBEGINSET 6
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mov dword ptr [np2_do_palookup+2], ebx
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push ebp
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mov ebp, edx ; ebp: vertical place
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mov ebx, eax ; ebx: vertical increment
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mov eax, dword ptr [globaltilesizy]
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mov dword ptr [np2_beginvline+1], eax
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inc ecx
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np2_fixchain1a: sub edi, 320
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np2_beginvline: ; +1: y tile size
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mov eax, 0x00000123
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mul ebp
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np2_fixchain1b: add edi, 320
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and eax, 0x000000ff
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mov al, byte ptr [esi+edx]
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add ebp, ebx
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dec ecx
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np2_do_palookup: ; +2: addr
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mov al, byte ptr [0xbeeff00d+eax]
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mov byte ptr [edi], al
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jnz short np2_beginvline
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mov eax, ebp
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pop ebp
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CDECLENDSET 6
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ret
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ALIGN 16
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PUBLIC _mvlineasm1 ;Masked vline
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_mvlineasm1:
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@ -610,6 +646,36 @@ fixchain1m: add edi, 320
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CDECLENDSET 6
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ret
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ALIGN 16
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PUBLIC _mvlineasm1nonpow2
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_mvlineasm1nonpow2:
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CDECLBEGINSET 6
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mov dword ptr [mnp2_do_palookup+2], ebx
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push ebp
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mov ebp, edx ; ebp: vertical place
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mov ebx, eax ; ebx: vertical increment
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mov eax, dword ptr [globaltilesizy]
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mov dword ptr [mnp2_beginvline+1], eax
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mnp2_beginvline: ; +1: y tile size
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mov eax, 0x00000123
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mul ebp
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and eax, 0x000000ff
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mov al, byte ptr [esi+edx]
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cmp al, 255
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je short mskipmask1
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mnp2_do_palookup: ; +2: addr
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mov al, byte ptr [0xbeeff00d+eax]
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mov byte ptr [edi], al
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mskipmask1:
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add ebp, ebx
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mnp2_fixchain1b: add edi, 320
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sub ecx, 1
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jnc short mnp2_beginvline
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mov eax, ebp
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pop ebp
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CDECLENDSET 6
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ret
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ALIGN 16
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PUBLIC _fixtransluscence
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_fixtransluscence:
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@ -623,6 +689,8 @@ CDECLBEGINSET 1
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mov dword ptr [tran2trab+2], eax
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mov dword ptr [tran2trac+2], eax
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mov dword ptr [tran2trad+2], eax
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mov dword ptr [tnmach4+2], eax
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CDECLENDSET 1
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ret
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@ -647,6 +715,10 @@ _settransnormal:
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mov byte ptr [transrev15+1], 9ah
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mov byte ptr [transrev16+1], 0a7h
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mov byte ptr [transrev17+1], 82h
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mov byte ptr [ntransrev0+1], 80h
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mov byte ptr [ntransrev1+1], 27h
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ret
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ALIGN 16
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@ -670,6 +742,10 @@ _settransreverse:
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mov byte ptr [transrev15+1], 0bah
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mov byte ptr [transrev16+1], 87h
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mov byte ptr [transrev17+1], 0a2h
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mov byte ptr [ntransrev0+1], 0a0h
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mov byte ptr [ntransrev1+1], 7h
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ret
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ALIGN 16
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@ -706,6 +782,41 @@ fixchain1t: add edi, 320
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CDECLENDSET 6
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ret
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ALIGN 16
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PUBLIC _tvlineasm1nonpow2
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_tvlineasm1nonpow2:
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CDECLBEGINSET 6
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mov dword ptr [tnp2_do_palookup+2], ebx
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push ebp
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mov ebp, edx ; ebp: vertical place
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mov ebx, eax ; ebx: vertical increment
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inc ecx
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mov eax, dword ptr [globaltilesizy]
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mov dword ptr [tnp2_beginvline+1], eax
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tnp2_beginvline: ; +1: y tile size
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mov eax, 0x00000123
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mul ebp
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and eax, 0x000000ff
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mov al, byte ptr [esi+edx]
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cmp al, 255
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je short tskipmask1
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ntransrev0:
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tnp2_do_palookup: ; +2: addr
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mov al, byte ptr [0xbeeff00d+eax]
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ntransrev1:
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mov ah, byte ptr [edi]
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tnmach4: mov al, byte ptr [eax+88888888h] ;_luc[eax]
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mov byte ptr [edi], al
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tskipmask1:
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add ebp, ebx
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tnp2_fixchain1b: add edi, 320
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dec ecx
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jnz short tnp2_beginvline
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mov eax, ebp
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pop ebp
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CDECLENDSET 6
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ret
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;eax: -------temp1-------
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;ebx: -------temp2-------
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;ecx: dat dat dat dat
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