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prepare for packed rgb

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This commit is contained in:
koolsmoky
2005-01-13 15:46:50 +00:00
parent a04cbf9994
commit 489324c55a
1 changed files with 42 additions and 33 deletions
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75
glide3x/cvg/glide3/src/xdraw2.inc
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@@ -20,6 +20,9 @@
;; $Header$
;; $Revision$
;; $Log$
;; Revision 1.1.1.1.8.1 2003/11/03 13:34:29 dborca
;; Voodoo2 happiness (DJGPP & Linux)
;;
;; Revision 1.1.1.1 1999/12/07 21:42:35 joseph
;; Initial checkin into SourceForge.
;;
@@ -91,6 +94,12 @@
pfsubr mm2, mm1 ; dyBC | dxBC
pfsub mm0, mm1 ; dyAB | dxAB
;; E3DN
; pswapd mm2, mm2 ; dxBC | dyBC
; pfmul mm0, mm2 ; dxBC*dyAB | dxAB*dyBC
; pfnacc mm0, mm0 ; dxAB*dyBC - dxBC*dyAB | dxAB*dyBC - dxBC*dyAB
; movd intArea, mm0 ; vectored !
movq mm5, mm2 ; dyBC | dxBC
punpckhdq mm2, mm2 ; dyBC | dyBC
@@ -107,10 +116,10 @@
; Zero Area Triangle Check
test intArea, 7fffffffh ; if ((j & 0x7FFFFFFF) == 0)
jz __cullFail ; area zero, triangle culled
jz .__cullFail ; area zero, triangle culled
xor intArea, cull ; if (j ^ (culltest << 31))
jge __cullFail ; triangle facing away from viewer, culled
jge .__cullFail ; triangle facing away from viewer, culled
cmp ebx, tempVal ; fifo space required >= space available ?
jge .__triBegin ; yup, push out triangle data to Voodoo
@@ -236,9 +245,9 @@
add dlp, 4 ; dlp++
test eax, eax ; end of list ?
jz __paramLoopDoneWBone1 ; yes, one DWORD in "write buffer"
jz .__paramLoopDoneWBone1 ; yes, one DWORD in "write buffer"
__paramLoop1a:
.__paramLoop1a:
movd mm2, [eax+vertex] ; get next parameter
add fifo, 8 ; fifoPtr += 2*sizeof(FxU32)
@@ -249,16 +258,16 @@ __paramLoop1a:
test eax, eax ; at end of offset list (offset == 0) ?
WRITE_MM1_FIFO_ALIGNED -8 ; PCI write current param | previous param
jz __paramLoopDoneWBzero1; exit, "write buffer" empty
jz .__paramLoopDoneWBzero1; exit, "write buffer" empty
movd mm1, [eax+vertex] ; get next parameter
mov eax, [dlp-4] ; offset = *(dlp + 1)
test eax, eax ; at end of offset list (offset == 0) ?
jnz __paramLoop1a ; nope, copy next parameter
jnz .__paramLoop1a ; nope, copy next parameter
nop ; filler
jmp __paramLoopDoneWBone1 ; merge back into common stream
jmp .__paramLoopDoneWBone1 ; merge back into common stream
%ELSE ; ! GLIDE_PACK_RGB
@@ -350,14 +359,14 @@ __paramLoop1a:
test eax, eax ; end of list ?
nop ; filler
jz __paramLoopDoneWBzero1; yes, "write buffer" is empty
jz .__paramLoopDoneWBzero1; yes, "write buffer" is empty
__paramLoop1b:
.__paramLoop1b:
movd mm1, [eax+vertex] ; get next parameter
mov eax, [dlp] ; offset = *(dlp + 1)
test eax, eax ; at end of offset list (offset == 0) ?
jz __paramLoopDoneWBone1 ; exit, write buffer contains one DWORD
jz .__paramLoopDoneWBone1 ; exit, write buffer contains one DWORD
movd mm2, [eax+vertex] ; get next parameter
add dlp, 8 ; dlp += 2
@@ -369,10 +378,10 @@ __paramLoop1b:
test eax, eax ; at end of offset list (offset == 0) ?
WRITE_MM1_FIFO_ALIGNED -8 ; PCI write current param | previous param
jnz __paramLoop1b ; nope, copy next parameter
jnz .__paramLoop1b ; nope, copy next parameter
nop ; filler
jmp __paramLoopDoneWBzero1; write buffer empty
jmp .__paramLoopDoneWBzero1; write buffer empty
%ELSE ; !GLIDE_PACK_RGB
mov eax, [dlp] ; get first offset from the data list
@@ -463,14 +472,14 @@ __paramLoop1b:
test eax, eax ; end of list ?
nop ; filler
jz __paramLoopDoneWBzero2; yes, "write buffer" is empty
jz .__paramLoopDoneWBzero2; yes, "write buffer" is empty
__paramLoop2b:
.__paramLoop2b:
movd mm1, [eax+vertex] ; get next parameter
mov eax, [dlp] ; offset = *(dlp + 1)
test eax, eax ; at end of offset list (offset == 0) ?
jz __paramLoopDoneWBone2 ; exit, write buffer contains one DWORD
jz .__paramLoopDoneWBone2 ; exit, write buffer contains one DWORD
movd mm2, [eax+vertex] ; get next parameter
add dlp, 8 ; dlp += 2
@@ -482,10 +491,10 @@ __paramLoop2b:
test eax, eax ; at end of offset list (offset == 0) ?
WRITE_MM1_FIFO_ALIGNED -8 ; PCI write current param | previous param
jnz __paramLoop2b ; nope, copy next parameter
jnz .__paramLoop2b ; nope, copy next parameter
nop ; filler
jmp __paramLoopDoneWBzero2; write buffer empty
jmp .__paramLoopDoneWBzero2; write buffer empty
%ELSE ; !GLIDE_PACK_RGB
mov eax, [dlp] ; get first offset from the data list
@@ -571,9 +580,9 @@ __paramLoop2b:
add dlp, 4 ; dlp++
test eax, eax ; end of list ?
jz __paramLoopDoneWBone2 ; yes, one DWORD in "write buffer"
jz .__paramLoopDoneWBone2 ; yes, one DWORD in "write buffer"
__paramLoop2a:
.__paramLoop2a:
movd mm2, [eax+vertex] ; get next parameter
add fifo, 8 ; fifoPtr += 2*sizeof(FxU32)
@@ -584,16 +593,16 @@ __paramLoop2a:
test eax, eax ; at end of offset list (offset == 0) ?
WRITE_MM1_FIFO_ALIGNED -8 ; PCI write current param | previous param
jz __paramLoopDoneWBzero2; exit, "write buffer" empty
jz .__paramLoopDoneWBzero2; exit, "write buffer" empty
movd mm1, [eax+vertex] ; get next parameter
mov eax, [dlp-4] ; offset = *(dlp + 1)
test eax, eax ; at end of offset list (offset == 0) ?
jnz __paramLoop2a ; nope, copy next parameter
jnz .__paramLoop2a ; nope, copy next parameter
nop ; filler
jmp __paramLoopDoneWBone2 ; merge back into common stream
jmp .__paramLoopDoneWBone2 ; merge back into common stream
%ELSE ; ! GLIDE_PACK_RGB
@@ -681,9 +690,9 @@ __paramLoop2a:
add dlp, 4 ; dlp++
test eax, eax ; end of list ?
jz __paramLoopDoneWBone3 ; yes, one DWORD in "write buffer"
jz .__paramLoopDoneWBone3 ; yes, one DWORD in "write buffer"
__paramLoop3a:
.__paramLoop3a:
movd mm2, [eax+vertex] ; get next parameter
add fifo, 8 ; fifoPtr += 2*sizeof(FxU32)
@@ -694,16 +703,16 @@ __paramLoop3a:
punpckldq mm1, mm2 ; current param | previous param
WRITE_MM1_FIFO_ALIGNED -8 ; PCI write current param | previous param
jz __paramLoopDoneWBzero3; exit, "write buffer" empty
jz .__paramLoopDoneWBzero3; exit, "write buffer" empty
movd mm1, [eax+vertex] ; get next parameter
mov eax, [dlp-4] ; offset = *(dlp + 1)
test eax, eax ; at end of offset list (offset == 0) ?
jnz __paramLoop3a ; nope, copy next parameter
jnz .__paramLoop3a ; nope, copy next parameter
nop ; filler
jmp __paramLoopDoneWBone3 ; merge back into common stream
jmp .__paramLoopDoneWBone3 ; merge back into common stream
%ELSE ; ! GLIDE_PACK_RGB
@@ -802,14 +811,14 @@ __paramLoop3a:
nop ; filler
test eax, eax ; end of list ?
jz __paramLoopDoneWBzero3; yes, "write buffer" is empty
jz .__paramLoopDoneWBzero3; yes, "write buffer" is empty
__paramLoop3b:
.__paramLoop3b:
movd mm1, [eax+vertex] ; get next parameter
mov eax, [dlp] ; offset = *(dlp + 1)
test eax, eax ; at end of offset list (offset == 0) ?
jz __paramLoopDoneWBone3 ; exit, write buffer contains one DWORD
jz .__paramLoopDoneWBone3 ; exit, write buffer contains one DWORD
movd mm2, [eax+vertex] ; get next parameter
add dlp, 8 ; dlp++
@@ -821,10 +830,10 @@ __paramLoop3b:
test eax, eax ; at end of offset list (offset == 0) ?
WRITE_MM1_FIFO_ALIGNED -8 ; PCI write current param | previous param
jnz __paramLoop3b ; nope, copy next parameter
jnz .__paramLoop3b ; nope, copy next parameter
nop ; filler
jmp __paramLoopDoneWBzero3; write buffer empty
jmp .__paramLoopDoneWBzero3; write buffer empty
%ELSE ; !GLIDE_PACK_RGB
@@ -900,7 +909,7 @@ __paramLoop3b:
%IF GLIDE_CULLING
__cullFail:
.__cullFail:
mov ebp, [_GlideRoot + trisProcessed]; triangles processed so far
xor eax, eax ; return value = triangle not drawn