diff options
Diffstat (limited to 'src/mesa/drivers/dos/mga')
| -rw-r--r-- | src/mesa/drivers/dos/mga/m_ttemp.h | 20 | ||||
| -rw-r--r-- | src/mesa/drivers/dos/mga/m_ttemp2.h | 375 |
2 files changed, 19 insertions, 376 deletions
diff --git a/src/mesa/drivers/dos/mga/m_ttemp.h b/src/mesa/drivers/dos/mga/m_ttemp.h index 90d9de35642..e4c65f834b9 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 : [email protected] @@ -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); diff --git a/src/mesa/drivers/dos/mga/m_ttemp2.h b/src/mesa/drivers/dos/mga/m_ttemp2.h deleted file mode 100644 index 13ca87d348a..00000000000 --- a/src/mesa/drivers/dos/mga/m_ttemp2.h +++ /dev/null @@ -1,375 +0,0 @@ -/* - * Mesa 3-D graphics library - * Version: 5.0 - * - * Copyright (C) 1999-2002 Brian Paul All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * and/or sell copies of the Software, and to permit persons to whom the - * Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice shall be included - * in all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS - * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL - * BRIAN PAUL BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN - * AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN - * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. - */ - -/* - * DOS/DJGPP device driver v1.3 for Mesa -- MGA2064W triangle template - * - * Copyright (c) 2003 - Borca Daniel - * Email : [email protected] - * Web : http://www.geocities.com/dborca - */ - - -/* - * Triangle Rasterizer Template - * - * This file is #include'd to generate custom triangle rasterizers. - * - * The following macros may be defined to indicate what auxillary information - * must be interplated across the triangle: - * INTERP_Z - if defined, interpolate Z values - * INTERP_RGB - if defined, interpolate RGB values - * - * TAG - function name - * CULL - enable culling for: 0=no, 1=back, -1=front - * - * SETUP_CODE - to be executed once per triangle (usually HW init) - * - * For flatshaded primitives, the provoking vertex is the final one. - * This code was designed for the origin to be in the upper-left corner. - * - * Inspired by triangle rasterizer code written by Brian Paul. - */ - - - -#define TRI_SWAP(a, b) \ -do { \ - const MGAvertex *tmp = a; \ - a = b; \ - b = tmp; \ -} while (0) - -void TAG (int cull, const MGAvertex *v1, const MGAvertex *v2, const MGAvertex *v3) -{ - int area; - int x1, y1, x2, y2, x3, y3; - int eMaj_dx, eMaj_dy, eBot_dx, eBot_dy, eTop_dx, eTop_dy; -#ifdef INTERP_RGB -#define FIFO_CNT_RGB 3 - int eMaj_dr, eBot_dr, eMaj_dg, eBot_dg, eMaj_db, eBot_db; - int drdx, drdy, dgdx, dgdy, dbdx, dbdy; -#else -#define FIFO_CNT_RGB 0 -#endif -#ifdef INTERP_Z -#define FIFO_CNT_Z 1 - int dzdx, dzdy; - int eMaj_dz, eBot_dz; - int z1, z2, z3; -#else -#define FIFO_CNT_Z 0 -#endif - -#if defined(INTERP_Z) || defined(INTERP_RGB) -#ifndef INTERP_RGB - int red = v3->color[0]; - int green = v3->color[1]; - int blue = v3->color[2]; -#endif -#else - unsigned long color = mga_mixrgb_full(v3->color); -#endif - - int sgn = 0; - - /* sort along the vertical axis */ - if (v2->win[1] < v1->win[1]) { - TRI_SWAP(v1, v2); -#ifdef CULL - cull = -cull; -#endif - } - - if (v3->win[1] < v1->win[1]) { - TRI_SWAP(v1, v3); - TRI_SWAP(v2, v3); - } else if (v3->win[1] < v2->win[1]) { - TRI_SWAP(v2, v3); -#ifdef CULL - cull = -cull; -#endif - } - - x1 = v1->win[0]; - y1 = v1->win[1]; - x2 = v2->win[0]; - y2 = v2->win[1]; - x3 = v3->win[0]; - y3 = v3->win[1]; - - /* compute deltas for each edge */ - eMaj_dx = x3 - x1; - eMaj_dy = y3 - y1; - eBot_dx = x2 - x1; - eBot_dy = y2 - y1; - eTop_dx = x3 - x2; - eTop_dy = y3 - y2; - - /* compute area */ - if ((area = eMaj_dx * eBot_dy - eBot_dx * eMaj_dy) == 0) { - return; - } -#ifdef CULL - if ((area * cull) > 0) { - return; - } -#endif - - mga_select(); - - /* set engine state */ -#ifdef SETUP_CODE - SETUP_CODE -#endif - - /* draw lower triangle */ -#if defined(INTERP_Z) || defined(INTERP_RGB) - mga_fifo(1); -#else - mga_fifo(2); - mga_outl(M_FCOL, color); -#endif - mga_outl(M_YDST, y1); - -#ifdef INTERP_Z - z1 = v1->win[2]; - z2 = v2->win[2]; - z3 = v3->win[2]; - - /* compute d?/dx and d?/dy derivatives */ - eMaj_dz = z3 - z1; - eBot_dz = z2 - z1; - 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; - -#ifndef INTERP_RGB - mga_fifo(11); - mga_outl(M_DR2, dzdx); - mga_outl(M_DR3, dzdy); - mga_outl(M_DR4, red<<15); - mga_outl(M_DR6, 0); - mga_outl(M_DR7, 0); - mga_outl(M_DR8, green<<15); - mga_outl(M_DR10, 0); - mga_outl(M_DR11, 0); - mga_outl(M_DR12, blue<<15); - mga_outl(M_DR14, 0); - mga_outl(M_DR15, 0); -#else - mga_fifo(2); - mga_outl(M_DR2, dzdx); - mga_outl(M_DR3, dzdy); -#endif -#endif - -#ifdef INTERP_RGB - /* compute color deltas */ - eMaj_dr = v3->color[0] - v1->color[0]; - eBot_dr = v2->color[0] - v1->color[0]; - eMaj_dg = v3->color[1] - v1->color[1]; - eBot_dg = v2->color[1] - v1->color[1]; - eMaj_db = v3->color[2] - v1->color[2]; - eBot_db = v2->color[2] - v1->color[2]; - - /* compute color increments */ - 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; - - mga_fifo(6); - mga_outl(M_DR6, drdx); - mga_outl(M_DR7, drdy); - mga_outl(M_DR10, dgdx); - mga_outl(M_DR11, dgdy); - mga_outl(M_DR14, dbdx); - mga_outl(M_DR15, dbdy); -#endif - - if (area > 0) { /* major edge on the right */ - if (eBot_dy) { /* have lower triangle */ - mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB); - - mga_outl(M_AR0, eBot_dy); - if (x2 < x1) { - mga_outl(M_AR1, eBot_dx + eBot_dy - 1); - mga_outl(M_AR2, eBot_dx); - sgn |= M_SDXL; - } else { - mga_outl(M_AR1, -eBot_dx); - mga_outl(M_AR2, -eBot_dx); - } - - mga_outl(M_AR6, eMaj_dy); - if (x3 < x1) { - mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1); - mga_outl(M_AR5, eMaj_dx); - sgn |= M_SDXR; - } else { - mga_outl(M_AR4, -eMaj_dx); - mga_outl(M_AR5, -eMaj_dx); - } - - mga_outl(M_FXBNDRY, (x1<<16) | x1); -#ifdef INTERP_Z - mga_outl(M_DR0, z1<<15); -#endif -#ifdef INTERP_RGB - mga_outl(M_DR4, v1->color[0]<<15); - mga_outl(M_DR8, v1->color[1]<<15); - mga_outl(M_DR12, v1->color[2]<<15); -#endif - mga_outl(M_SGN, sgn); - mga_outl(M_LEN | M_EXEC, eBot_dy); - } else { /* no lower triangle */ - mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB); - - mga_outl(M_AR6, eMaj_dy); - if (x3 < x1) { - mga_outl(M_AR4, eMaj_dx + eMaj_dy - 1); - mga_outl(M_AR5, eMaj_dx); - sgn |= M_SDXR; - } else { - mga_outl(M_AR4, -eMaj_dx); - mga_outl(M_AR5, -eMaj_dx); - } - - mga_outl(M_FXBNDRY, (x1<<16) | x2); -#ifdef INTERP_Z - mga_outl(M_DR0, z2<<15); -#endif -#ifdef INTERP_RGB - mga_outl(M_DR4, v2->color[0]<<15); - mga_outl(M_DR8, v2->color[1]<<15); - mga_outl(M_DR12, v2->color[2]<<15); -#endif - } - - /* draw upper triangle */ - if (eTop_dy) { - mga_fifo(5); - mga_outl(M_AR0, eTop_dy); - if (x3 < x2) { - mga_outl(M_AR1, eTop_dx + eTop_dy - 1); - mga_outl(M_AR2, eTop_dx); - sgn |= M_SDXL; - } else { - mga_outl(M_AR1, -eTop_dx); - mga_outl(M_AR2, -eTop_dx); - sgn &= ~M_SDXL; - } - mga_outl(M_SGN, sgn); - mga_outl(M_LEN | M_EXEC, eTop_dy); - } - } else { /* major edge on the left */ - if (eBot_dy) { /* have lower triangle */ - mga_fifo(9 + FIFO_CNT_Z + FIFO_CNT_RGB); - - mga_outl(M_AR0, eMaj_dy); - if (x3 < x1) { - mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1); - mga_outl(M_AR2, eMaj_dx); - sgn |= M_SDXL; - } else { - mga_outl(M_AR1, -eMaj_dx); - mga_outl(M_AR2, -eMaj_dx); - } - - mga_outl(M_AR6, eBot_dy); - if (x2 < x1) { - mga_outl(M_AR4, eBot_dx + eBot_dy - 1); - mga_outl(M_AR5, eBot_dx); - sgn |= M_SDXR; - } else { - mga_outl(M_AR4, -eBot_dx); - mga_outl(M_AR5, -eBot_dx); - } - - mga_outl(M_FXBNDRY, (x1<<16) | x1); -#ifdef INTERP_Z - mga_outl(M_DR0, z1<<15); -#endif -#ifdef INTERP_RGB - mga_outl(M_DR4, v1->color[0]<<15); - mga_outl(M_DR8, v1->color[1]<<15); - mga_outl(M_DR12, v1->color[2]<<15); -#endif - mga_outl(M_SGN, sgn); - mga_outl(M_LEN | M_EXEC, eBot_dy); - } else { /* no lower triangle */ - mga_fifo(4 + FIFO_CNT_Z + FIFO_CNT_RGB); - - mga_outl(M_AR0, eMaj_dy); - if (x3 < x1) { - mga_outl(M_AR1, eMaj_dx + eMaj_dy - 1); - mga_outl(M_AR2, eMaj_dx); - sgn |= M_SDXL; - } else { - mga_outl(M_AR1, -eMaj_dx); - mga_outl(M_AR2, -eMaj_dx); - } - - mga_outl(M_FXBNDRY, (x2<<16) | x1); -#ifdef INTERP_Z - mga_outl(M_DR0, z1<<15); -#endif -#ifdef INTERP_RGB - mga_outl(M_DR4, v1->color[0]<<15); - mga_outl(M_DR8, v1->color[1]<<15); - mga_outl(M_DR12, v1->color[2]<<15); -#endif - } - - /* draw upper triangle */ - if (eTop_dy) { - mga_fifo(5); - mga_outl(M_AR6, eTop_dy); - if (x3 < x2) { - mga_outl(M_AR4, eTop_dx + eTop_dy - 1); - mga_outl(M_AR5, eTop_dx); - sgn |= M_SDXR; - } else { - mga_outl(M_AR4, -eTop_dx); - mga_outl(M_AR5, -eTop_dx); - sgn &= ~M_SDXR; - } - mga_outl(M_SGN, sgn); - mga_outl(M_LEN | M_EXEC, eTop_dy); - } - } -} - -#undef FIFO_CNT_RGB -#undef FIFO_CNT_Z - -#undef TRI_SWAP - -#undef SETUP_CODE -#undef INTERP_RGB -#undef INTERP_Z -#undef CULL -#undef TAG |