diff options
| author | Daniel Borca <dborca@users.sourceforge.net> | 2003-10-21 08:27:21 +0000 |
|---|---|---|
| committer | Daniel Borca <dborca@users.sourceforge.net> | 2003-10-21 08:27:21 +0000 |
| commit | 3f60e4f21b9ff5bf3a83734d38ee90aff8a67fa0 (patch) | |
| tree | c0e5a07e20880cd45aa471ac903d5a36ea080645 /src/mesa/drivers/dos/mga/m_ttemp.h | |
| parent | 1aa28b3fe398f083f73d805a6eb004b3eed02aae (diff) | |
cosmetics; translated asm routines for use with ASSYNTAX.H
Diffstat (limited to 'src/mesa/drivers/dos/mga/m_ttemp.h')
| -rw-r--r-- | src/mesa/drivers/dos/mga/m_ttemp.h | 20 |
1 files changed, 19 insertions, 1 deletions
diff --git a/src/mesa/drivers/dos/mga/m_ttemp.h b/src/mesa/drivers/dos/mga/m_ttemp.h index 90d9de3564..e4c65f834b 100644 --- a/src/mesa/drivers/dos/mga/m_ttemp.h +++ b/src/mesa/drivers/dos/mga/m_ttemp.h @@ -23,7 +23,7 @@ */ /* - * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W triangle template + * DOS/DJGPP device driver v1.4 for Mesa -- MGA2064W triangle template * * Copyright (c) 2003 - Borca Daniel * Email : dborca@yahoo.com @@ -83,7 +83,9 @@ void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v #endif #if defined(INTERP_Z) || defined(INTERP_RGB) +#if !LONG_LONG double one_area; +#endif #ifndef INTERP_RGB int red = v3->color[0]; int green = v3->color[1]; @@ -147,7 +149,9 @@ void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v /* draw lower triangle */ #if defined(INTERP_Z) || defined(INTERP_RGB) +#if !LONG_LONG one_area = (double)(1<<15) / (double)area; +#endif mga_fifo(1); #else mga_fifo(2); @@ -163,8 +167,13 @@ void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v /* compute d?/dx and d?/dy derivatives */ eMaj_dz = z3 - z1; eBot_dz = z2 - z1; +#if !LONG_LONG dzdx = (eMaj_dz * eBot_dy - eMaj_dy * eBot_dz) * one_area; dzdy = (eMaj_dx * eBot_dz - eMaj_dz * eBot_dx) * one_area; +#else + dzdx = ((long long)(eMaj_dz * eBot_dy - eMaj_dy * eBot_dz)<<15) / area; + dzdy = ((long long)(eMaj_dx * eBot_dz - eMaj_dz * eBot_dx)<<15) / area; +#endif #ifndef INTERP_RGB mga_fifo(11); @@ -196,12 +205,21 @@ void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v eBot_db = v2->color[2] - v1->color[2]; /* compute color increments */ +#if !LONG_LONG drdx = (eMaj_dr * eBot_dy - eMaj_dy * eBot_dr) * one_area; drdy = (eMaj_dx * eBot_dr - eMaj_dr * eBot_dx) * one_area; dgdx = (eMaj_dg * eBot_dy - eMaj_dy * eBot_dg) * one_area; dgdy = (eMaj_dx * eBot_dg - eMaj_dg * eBot_dx) * one_area; dbdx = (eMaj_db * eBot_dy - eMaj_dy * eBot_db) * one_area; dbdy = (eMaj_dx * eBot_db - eMaj_db * eBot_dx) * one_area; +#else + drdx = ((long long)(eMaj_dr * eBot_dy - eMaj_dy * eBot_dr)<<15) / area; + drdy = ((long long)(eMaj_dx * eBot_dr - eMaj_dr * eBot_dx)<<15) / area; + dgdx = ((long long)(eMaj_dg * eBot_dy - eMaj_dy * eBot_dg)<<15) / area; + dgdy = ((long long)(eMaj_dx * eBot_dg - eMaj_dg * eBot_dx)<<15) / area; + dbdx = ((long long)(eMaj_db * eBot_dy - eMaj_dy * eBot_db)<<15) / area; + dbdy = ((long long)(eMaj_dx * eBot_db - eMaj_db * eBot_dx)<<15) / area; +#endif mga_fifo(6); mga_outl(M_DR6, drdx); |