h3, h5: added grDrawTriangle() implementation for MinGW using nasm
grDrawTriangle() for MSVC/x86 is a naked function, so doing it in C code won't work. new file: xdrawtri.asm
This commit is contained in:
sezero
67
glide3x/h3/glide3/src/xdrawtri.asm
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67
glide3x/h3/glide3/src/xdrawtri.asm
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@@ -0,0 +1,67 @@
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;; THIS SOFTWARE IS SUBJECT TO COPYRIGHT PROTECTION AND IS OFFERED ONLY
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;; PURSUANT TO THE 3DFX GLIDE GENERAL PUBLIC LICENSE. THERE IS NO RIGHT
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;; TO USE THE GLIDE TRADEMARK WITHOUT PRIOR WRITTEN PERMISSION OF 3DFX
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;; INTERACTIVE, INC. A COPY OF THIS LICENSE MAY BE OBTAINED FROM THE
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;; DISTRIBUTOR OR BY CONTACTING 3DFX INTERACTIVE INC(info@3dfx.com).
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;; THIS PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
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;; EXPRESSED OR IMPLIED. SEE THE 3DFX GLIDE GENERAL PUBLIC LICENSE FOR A
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;; FULL TEXT OF THE NON-WARRANTY PROVISIONS.
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;;
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;; USE, DUPLICATION OR DISCLOSURE BY THE GOVERNMENT IS SUBJECT TO
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;; RESTRICTIONS AS SET FORTH IN SUBDIVISION (C)(1)(II) OF THE RIGHTS IN
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;; TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 252.227-7013,
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;; AND/OR IN SIMILAR OR SUCCESSOR CLAUSES IN THE FAR, DOD OR NASA FAR
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;; SUPPLEMENT. UNPUBLISHED RIGHTS RESERVED UNDER THE COPYRIGHT LAWS OF
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;; THE UNITED STATES.
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;;
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;; COPYRIGHT 3DFX INTERACTIVE, INC. 1999, ALL RIGHTS RESERVED
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;; Adapted from gdraw.c:grDrawTriangle() for nasm
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%include "xos.inc"
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%if XOS == XOS_WIN32
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%else
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%error This source is only meant for x86/Windows
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%endif
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%include "fxgasm.h"
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; tls constants (from fxglide.h)
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%define W95_TEB_PTR 0x18
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%define W95_TEB_TLS_OFFSET 0x88
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%define WNT_TEB_PTR 0x18
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%define WNT_TEB_TLS_OFFSET 0xE10
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extrn _GlideRoot
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segment TEXT
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align 4
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proc grDrawTriangle, 12
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mov eax, dword [fs:WNT_TEB_PTR]
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add eax, dword [_GlideRoot+tlsOffset]
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mov edx, dword [eax]
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test edx, edx
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je L0
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mov eax, dword [edx+lostContext]
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test eax, eax
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je L0
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mov eax, dword [eax]
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test eax, 1
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jnz L0
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mov eax, dword [edx+kTriProcOffset]
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jmp eax
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L0: ; lostContext
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; MSVC doesn't emit a RET here in gdraw.obj, which seems wrong.
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ret
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endp
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%ifdef __MINGW32__
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; GNU LD fails with '_' prefix
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export grDrawTriangle@12
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%else
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export _grDrawTriangle@12
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%endif
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72
glide3x/h5/glide3/src/xdrawtri.asm
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72
glide3x/h5/glide3/src/xdrawtri.asm
Normal file
@@ -0,0 +1,72 @@
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;; THIS SOFTWARE IS SUBJECT TO COPYRIGHT PROTECTION AND IS OFFERED ONLY
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;; PURSUANT TO THE 3DFX GLIDE GENERAL PUBLIC LICENSE. THERE IS NO RIGHT
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;; TO USE THE GLIDE TRADEMARK WITHOUT PRIOR WRITTEN PERMISSION OF 3DFX
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;; INTERACTIVE, INC. A COPY OF THIS LICENSE MAY BE OBTAINED FROM THE
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;; DISTRIBUTOR OR BY CONTACTING 3DFX INTERACTIVE INC(info@3dfx.com).
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;; THIS PROGRAM IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER
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;; EXPRESSED OR IMPLIED. SEE THE 3DFX GLIDE GENERAL PUBLIC LICENSE FOR A
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;; FULL TEXT OF THE NON-WARRANTY PROVISIONS.
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;;
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;; USE, DUPLICATION OR DISCLOSURE BY THE GOVERNMENT IS SUBJECT TO
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;; RESTRICTIONS AS SET FORTH IN SUBDIVISION (C)(1)(II) OF THE RIGHTS IN
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;; TECHNICAL DATA AND COMPUTER SOFTWARE CLAUSE AT DFARS 252.227-7013,
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;; AND/OR IN SIMILAR OR SUCCESSOR CLAUSES IN THE FAR, DOD OR NASA FAR
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;; SUPPLEMENT. UNPUBLISHED RIGHTS RESERVED UNDER THE COPYRIGHT LAWS OF
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;; THE UNITED STATES.
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;;
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;; COPYRIGHT 3DFX INTERACTIVE, INC. 1999, ALL RIGHTS RESERVED
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;; Adapted from gdraw.c:grDrawTriangle() for nasm
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%include "xos.inc"
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%if XOS == XOS_WIN32
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%else
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%error This source is only meant for x86/Windows
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%endif
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%include "fxgasm.h"
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; tls constants (from fxglide.h)
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%define W95_TEB_PTR 0x18
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%define W95_TEB_TLS_OFFSET 0x88
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%define WNT_TEB_PTR 0x18
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%define WNT_TEB_TLS_OFFSET 0xE10
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extrn _GlideRoot
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segment TEXT
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align 4
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proc grDrawTriangle, 12
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%if USE_STANDARD_TLS_FUNC == 1
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call getThreadValue
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mov edx, eax
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%else
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mov eax, dword [fs:WNT_TEB_PTR]
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add eax, dword [_GlideRoot+tlsOffset]
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mov edx, dword [eax]
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%endif
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test edx, edx
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je L0
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mov eax, dword [edx+lostContext]
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test eax, eax
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je L0
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mov eax, dword [eax]
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test eax, 1
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jnz L0
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mov eax, dword [edx+kTriProcOffset]
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jmp eax
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L0: ; lostContext
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; MSVC doesn't emit a RET here in gdraw.obj, which seems wrong.
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ret
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endp
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%ifdef __MINGW32__
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; GNU LD fails with '_' prefix
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export grDrawTriangle@12
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%else
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export _grDrawTriangle@12
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%endif
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