diff options
Diffstat (limited to 'src/sw_misc.c')
| -rw-r--r-- | src/sw_misc.c | 274 |
1 files changed, 129 insertions, 145 deletions
diff --git a/src/sw_misc.c b/src/sw_misc.c index 0a00d04..5e0ede5 100644 --- a/src/sw_misc.c +++ b/src/sw_misc.c @@ -8,7 +8,7 @@ of the License, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. +MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. @@ -29,9 +29,9 @@ cvar_t *sw_mipscale; surfcache_t *d_initial_rover; qboolean d_roverwrapped; int d_minmip; -float d_scalemip[NUM_MIPS-1]; +float d_scalemip[NUM_MIPS - 1]; -static float basemip[NUM_MIPS-1] = {1.0, 0.5*0.8, 0.25*0.8}; +static float basemip[NUM_MIPS - 1] = {1.0, 0.5 * 0.8, 0.25 * 0.8}; extern int d_aflatcolor; @@ -40,30 +40,29 @@ int d_vrectx, d_vrecty, d_vrectright_particle, d_vrectbottom_particle; int d_pix_min, d_pix_max, d_pix_shift; int d_scantable[MAXHEIGHT]; -short *zspantable[MAXHEIGHT]; +short *zspantable[MAXHEIGHT]; /* ================ D_Patch ================ */ -void D_Patch (void) +void D_Patch(void) { #if USE_ASM - extern void D_Aff8Patch( void ); + extern void D_Aff8Patch(void); static qboolean protectset8 = qfalse; - extern void D_PolysetAff8Start( void ); - - if (!protectset8) - { - Sys_MakeCodeWriteable ((int)D_PolysetAff8Start, - (int)D_Aff8Patch - (int)D_PolysetAff8Start); - Sys_MakeCodeWriteable ((long)R_Surf8Start, - (long)R_Surf8End - (long)R_Surf8Start); + extern void D_PolysetAff8Start(void); + + if (!protectset8) { + Sys_MakeCodeWriteable((int)D_PolysetAff8Start, + (int)D_Aff8Patch - (int)D_PolysetAff8Start); + Sys_MakeCodeWriteable((long)R_Surf8Start, + (long)R_Surf8End - (long)R_Surf8Start); protectset8 = qtrue; } - R_Surf8Patch (); + R_Surf8Patch(); D_Aff8Patch(); #endif } @@ -72,7 +71,7 @@ void D_Patch (void) D_ViewChanged ================ */ -void D_ViewChanged (void) +void D_ViewChanged(void) { int i; @@ -96,24 +95,22 @@ void D_ViewChanged (void) d_vrecty = r_refdef.vrect.y; d_vrectright_particle = r_refdef.vrectright - d_pix_max; d_vrectbottom_particle = - r_refdef.vrectbottom - d_pix_max; + r_refdef.vrectbottom - d_pix_max; - for (i=0 ; i<vid.height; i++) - { - d_scantable[i] = i*r_screenwidth; - zspantable[i] = d_pzbuffer + i*d_zwidth; + for (i = 0; i < vid.height; i++) { + d_scantable[i] = i * r_screenwidth; + zspantable[i] = d_pzbuffer + i * d_zwidth; } /* ** clear Z-buffer and color-buffers if we're doing the gallery */ - if ( r_newrefdef.rdflags & RDF_NOWORLDMODEL ) - { - memset( d_pzbuffer, 0xff, vid.width * vid.height * sizeof( d_pzbuffer[0] ) ); - R_DrawFill8( r_newrefdef.x, r_newrefdef.y, r_newrefdef.width, r_newrefdef.height, /*( int ) sw_clearcolor->value & 0xff*/0 ); + if (r_newrefdef.rdflags & RDF_NOWORLDMODEL) { + memset(d_pzbuffer, 0xff, vid.width * vid.height * sizeof(d_pzbuffer[0])); + R_DrawFill8(r_newrefdef.x, r_newrefdef.y, r_newrefdef.width, r_newrefdef.height, /*(int)sw_clearcolor->value & 0xff*/0); } - D_Patch (); + D_Patch(); } @@ -123,17 +120,17 @@ void D_ViewChanged (void) R_PrintTimes ============= */ -void R_PrintTimes (void) +void R_PrintTimes(void) { int r_time2; int ms; - r_time2 = Sys_Milliseconds (); + r_time2 = Sys_Milliseconds(); ms = r_time2 - r_time1; - + Com_Printf("%5i ms %3i/%3i/%3i poly %3i surf\n", - ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf); + ms, c_faceclip, r_polycount, r_drawnpolycount, c_surf); c_surf = 0; } @@ -143,11 +140,11 @@ void R_PrintTimes (void) R_PrintDSpeeds ============= */ -void R_PrintDSpeeds (void) +void R_PrintDSpeeds(void) { int ms, dp_time, r_time2, rw_time, db_time, se_time, de_time, da_time; - r_time2 = Sys_Milliseconds (); + r_time2 = Sys_Milliseconds(); da_time = (da_time2 - da_time1); dp_time = (dp_time2 - dp_time1); @@ -158,7 +155,7 @@ void R_PrintDSpeeds (void) ms = (r_time2 - r_time1); Com_Printf("%3i %2ip %2iw %2ib %2is %2ie %2ia\n", - ms, dp_time, rw_time, db_time, se_time, de_time, da_time); + ms, dp_time, rw_time, db_time, se_time, de_time, da_time); } @@ -167,7 +164,7 @@ void R_PrintDSpeeds (void) R_PrintAliasStats ============= */ -void R_PrintAliasStats (void) +void R_PrintAliasStats(void) { Com_Printf("%3i polygon model drawn\n", r_amodels_drawn); } @@ -179,24 +176,23 @@ void R_PrintAliasStats (void) R_TransformFrustum =================== */ -void R_TransformFrustum (void) +void R_TransformFrustum(void) { int i; vec3_t v, v2; - - for (i=0 ; i<4 ; i++) - { + + for (i = 0; i < 4; i++) { v[0] = screenedge[i].normal[2]; v[1] = -screenedge[i].normal[0]; v[2] = screenedge[i].normal[1]; - v2[0] = v[1]*vright[0] + v[2]*vup[0] + v[0]*vpn[0]; - v2[1] = v[1]*vright[1] + v[2]*vup[1] + v[0]*vpn[1]; - v2[2] = v[1]*vright[2] + v[2]*vup[2] + v[0]*vpn[2]; + v2[0] = v[1] * vright[0] + v[2] * vup[0] + v[0] * vpn[0]; + v2[1] = v[1] * vright[1] + v[2] * vup[1] + v[0] * vpn[1]; + v2[2] = v[1] * vright[2] + v[2] * vup[2] + v[0] * vpn[2]; - VectorCopy (v2, view_clipplanes[i].normal); + VectorCopy(v2, view_clipplanes[i].normal); - view_clipplanes[i].dist = DotProduct (modelorg, v2); + view_clipplanes[i].dist = DotProduct(modelorg, v2); } } @@ -206,11 +202,11 @@ void R_TransformFrustum (void) TransformVector ================ */ -void TransformVector (vec3_t in, vec3_t out) +void TransformVector(vec3_t in, vec3_t out) { - out[0] = DotProduct(in,vright); - out[1] = DotProduct(in,vup); - out[2] = DotProduct(in,vpn); + out[0] = DotProduct(in, vright); + out[1] = DotProduct(in, vup); + out[2] = DotProduct(in, vpn); } /* @@ -218,14 +214,14 @@ void TransformVector (vec3_t in, vec3_t out) R_TransformPlane ================ */ -void R_TransformPlane (cplane_t *p, float *normal, float *dist) +void R_TransformPlane(cplane_t *p, float *normal, float *dist) { float d; - - d = DotProduct (r_origin, p->normal); + + d = DotProduct(r_origin, p->normal); *dist = p->dist - d; // TODO: when we have rotating entities, this will need to use the view matrix - TransformVector (p->normal, normal); + TransformVector(p->normal, normal); } @@ -234,29 +230,24 @@ void R_TransformPlane (cplane_t *p, float *normal, float *dist) R_SetUpFrustumIndexes =============== */ -void R_SetUpFrustumIndexes (void) +void R_SetUpFrustumIndexes(void) { int i, j, *pindex; pindex = r_frustum_indexes; - for (i=0 ; i<4 ; i++) - { - for (j=0 ; j<3 ; j++) - { - if (view_clipplanes[i].normal[j] < 0) - { + for (i = 0; i < 4; i++) { + for (j = 0; j < 3; j++) { + if (view_clipplanes[i].normal[j] < 0) { pindex[j] = j; - pindex[j+3] = j+3; - } - else - { - pindex[j] = j+3; - pindex[j+3] = j; + pindex[j + 3] = j + 3; + } else { + pindex[j] = j + 3; + pindex[j + 3] = j; } } - // FIXME: do just once at start + // FIXME: do just once at start pfrustum_indexes[i] = pindex; pindex += 6; } @@ -270,22 +261,22 @@ Called every time the vid structure or r_refdef changes. Guaranteed to be called before the first refresh =============== */ -void R_ViewChanged (vrectSoft_t *vr) +void R_ViewChanged(vrectSoft_t *vr) { int i; r_refdef.vrect = *vr; - r_refdef.horizontalFieldOfView = 2*tan((float)r_newrefdef.fov_x/360*M_PI);; - verticalFieldOfView = 2*tan((float)r_newrefdef.fov_y/360*M_PI); + r_refdef.horizontalFieldOfView = 2 * tan((float)r_newrefdef.fov_x / 360 * M_PI); + verticalFieldOfView = 2 * tan((float)r_newrefdef.fov_y / 360 * M_PI); r_refdef.fvrectx = (float)r_refdef.vrect.x; r_refdef.fvrectx_adj = (float)r_refdef.vrect.x - 0.5; - r_refdef.vrect_x_adj_shift20 = (r_refdef.vrect.x<<20) + (1<<19) - 1; + r_refdef.vrect_x_adj_shift20 = (r_refdef.vrect.x << 20) + (1 << 19) - 1; r_refdef.fvrecty = (float)r_refdef.vrect.y; r_refdef.fvrecty_adj = (float)r_refdef.vrect.y - 0.5; r_refdef.vrectright = r_refdef.vrect.x + r_refdef.vrect.width; - r_refdef.vrectright_adj_shift20 = (r_refdef.vrectright<<20) + (1<<19) - 1; + r_refdef.vrectright_adj_shift20 = (r_refdef.vrectright << 20) + (1 << 19) - 1; r_refdef.fvrectright = (float)r_refdef.vrectright; r_refdef.fvrectright_adj = (float)r_refdef.vrectright - 0.5; r_refdef.vrectrightedge = (float)r_refdef.vrectright - 0.99; @@ -298,13 +289,13 @@ void R_ViewChanged (vrectSoft_t *vr) r_refdef.aliasvrect.width = (int)(r_refdef.vrect.width * r_aliasuvscale); r_refdef.aliasvrect.height = (int)(r_refdef.vrect.height * r_aliasuvscale); r_refdef.aliasvrectright = r_refdef.aliasvrect.x + - r_refdef.aliasvrect.width; + r_refdef.aliasvrect.width; r_refdef.aliasvrectbottom = r_refdef.aliasvrect.y + - r_refdef.aliasvrect.height; + r_refdef.aliasvrect.height; xOrigin = r_refdef.xOrigin; yOrigin = r_refdef.yOrigin; - + // values for perspective projection // if math were exact, the values would range from 0.5 to to range+0.5 // hopefully they wll be in the 0.000001 to range+.999999 and truncate @@ -312,10 +303,10 @@ void R_ViewChanged (vrectSoft_t *vr) // but will definately render in the [range] row and column, so adjust the // buffer origin to get an exact edge to edge fill xcenter = ((float)r_refdef.vrect.width * XCENTERING) + - r_refdef.vrect.x - 0.5; + r_refdef.vrect.x - 0.5; aliasxcenter = xcenter * r_aliasuvscale; ycenter = ((float)r_refdef.vrect.height * YCENTERING) + - r_refdef.vrect.y - 0.5; + r_refdef.vrect.y - 0.5; aliasycenter = ycenter * r_aliasuvscale; xscale = r_refdef.vrect.width / r_refdef.horizontalFieldOfView; @@ -325,38 +316,38 @@ void R_ViewChanged (vrectSoft_t *vr) yscale = xscale; aliasyscale = yscale * r_aliasuvscale; yscaleinv = 1.0 / yscale; - xscaleshrink = (r_refdef.vrect.width-6)/r_refdef.horizontalFieldOfView; + xscaleshrink = (r_refdef.vrect.width - 6) / r_refdef.horizontalFieldOfView; yscaleshrink = xscaleshrink; // left side clip - screenedge[0].normal[0] = -1.0 / (xOrigin*r_refdef.horizontalFieldOfView); + screenedge[0].normal[0] = -1.0 / (xOrigin * r_refdef.horizontalFieldOfView); screenedge[0].normal[1] = 0; screenedge[0].normal[2] = 1; screenedge[0].type = PLANE_ANYZ; - + // right side clip screenedge[1].normal[0] = - 1.0 / ((1.0-xOrigin)*r_refdef.horizontalFieldOfView); + 1.0 / ((1.0 - xOrigin) * r_refdef.horizontalFieldOfView); screenedge[1].normal[1] = 0; screenedge[1].normal[2] = 1; screenedge[1].type = PLANE_ANYZ; - + // top side clip screenedge[2].normal[0] = 0; - screenedge[2].normal[1] = -1.0 / (yOrigin*verticalFieldOfView); + screenedge[2].normal[1] = -1.0 / (yOrigin * verticalFieldOfView); screenedge[2].normal[2] = 1; screenedge[2].type = PLANE_ANYZ; - + // bottom side clip screenedge[3].normal[0] = 0; - screenedge[3].normal[1] = 1.0 / ((1.0-yOrigin)*verticalFieldOfView); - screenedge[3].normal[2] = 1; + screenedge[3].normal[1] = 1.0 / ((1.0 - yOrigin) * verticalFieldOfView); + screenedge[3].normal[2] = 1; screenedge[3].type = PLANE_ANYZ; - - for (i=0 ; i<4 ; i++) - VectorNormalize (screenedge[i].normal); - D_ViewChanged (); + for (i = 0; i < 4; i++) + VectorNormalize(screenedge[i].normal); + + D_ViewChanged(); } @@ -365,40 +356,38 @@ void R_ViewChanged (vrectSoft_t *vr) R_SetupFrame =============== */ -void R_SetupFrame (void) +void R_SetupFrame(void) { int i; vrectSoft_t vrect; - if (r_fullbright->modified) - { + if (r_fullbright->modified) { r_fullbright->modified = qfalse; - D_FlushCaches (); // so all lighting changes + D_FlushCaches(); // so all lighting changes } - + r_framecount++; // build the transformation matrix for the given view angles - VectorCopy (r_refdef.vieworg, modelorg); - VectorCopy (r_refdef.vieworg, r_origin); + VectorCopy(r_refdef.vieworg, modelorg); + VectorCopy(r_refdef.vieworg, r_origin); - AngleVectors (r_refdef.viewangles, vpn, vright, vup); + AngleVectors(r_refdef.viewangles, vpn, vright, vup); // current viewleaf - if ( !( r_newrefdef.rdflags & RDF_NOWORLDMODEL ) ) - { - r_viewleaf = BSP_PointLeaf (r_worldmodel->nodes, r_origin); + if (!(r_newrefdef.rdflags & RDF_NOWORLDMODEL)) { + r_viewleaf = BSP_PointLeaf(r_worldmodel->nodes, r_origin); r_viewcluster = r_viewleaf->cluster; } - if (sw_waterwarp->integer && (r_newrefdef.rdflags & RDF_UNDERWATER) ) + if (sw_waterwarp->integer && (r_newrefdef.rdflags & RDF_UNDERWATER)) r_dowarp = qtrue; else r_dowarp = qfalse; - if (r_dowarp) - { // warp into off screen buffer + if (r_dowarp) { + // warp into off screen buffer vrect.x = 0; vrect.y = 0; vrect.width = r_newrefdef.width < WARP_WIDTH ? r_newrefdef.width : WARP_WIDTH; @@ -406,9 +395,7 @@ void R_SetupFrame (void) d_viewbuffer = r_warpbuffer; r_screenwidth = WARP_WIDTH; - } - else - { + } else { vrect.x = r_newrefdef.x; vrect.y = r_newrefdef.y; vrect.width = r_newrefdef.width; @@ -417,17 +404,17 @@ void R_SetupFrame (void) d_viewbuffer = (void *)vid.buffer; r_screenwidth = vid.rowbytes; } - - R_ViewChanged (&vrect); + + R_ViewChanged(&vrect); // start off with just the four screen edge clip planes - R_TransformFrustum (); - R_SetUpFrustumIndexes (); + R_TransformFrustum(); + R_SetUpFrustumIndexes(); // save base values - VectorCopy (vpn, base_vpn); - VectorCopy (vright, base_vright); - VectorCopy (vup, base_vup); + VectorCopy(vpn, base_vpn); + VectorCopy(vright, base_vright); + VectorCopy(vup, base_vup); // clear frame counts c_faceclip = 0; @@ -449,26 +436,26 @@ void R_SetupFrame (void) else if (d_minmip < 0) d_minmip = 0; - for (i=0 ; i<(NUM_MIPS-1) ; i++) + for (i = 0; i < (NUM_MIPS - 1); i++) d_scalemip[i] = basemip[i] * sw_mipscale->value; d_aflatcolor = 0; } -/* -============================================================================== - +/* +============================================================================== + MATH - -============================================================================== -*/ + +============================================================================== +*/ /* ================ R_ConcatRotations ================ */ -void R_ConcatRotations (float in1[3][3], float in2[3][3], float out[3][3]) +void R_ConcatRotations(float in1[3][3], float in2[3][3], float out[3][3]) { out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] + in1[0][2] * in2[2][0]; @@ -496,7 +483,7 @@ void R_ConcatRotations (float in1[3][3], float in2[3][3], float out[3][3]) R_ConcatTransforms ================ */ -void R_ConcatTransforms (float in1[3][4], float in2[3][4], float out[3][4]) +void R_ConcatTransforms(float in1[3][4], float in2[3][4], float out[3][4]) { out[0][0] = in1[0][0] * in2[0][0] + in1[0][1] * in2[1][0] + in1[0][2] * in2[2][0]; @@ -524,7 +511,7 @@ void R_ConcatTransforms (float in1[3][4], float in2[3][4], float out[3][4]) in1[2][2] * in2[2][3] + in1[2][3]; } -void R_RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point, float degrees ) +void R_RotatePointAroundVector(vec3_t dst, const vec3_t dir, const vec3_t point, float degrees) { float m[3][3]; float im[3][3]; @@ -538,8 +525,8 @@ void R_RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point vf[1] = dir[1]; vf[2] = dir[2]; - PerpendicularVector( vr, dir ); - CrossProduct( vr, vf, vup ); + PerpendicularVector(vr, dir); + CrossProduct(vr, vf, vup); m[0][0] = vr[0]; m[1][0] = vr[1]; @@ -553,7 +540,7 @@ void R_RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point m[1][2] = vf[1]; m[2][2] = vf[2]; - memcpy( im, m, sizeof( im ) ); + memcpy(im, m, sizeof(im)); im[0][1] = m[1][0]; im[0][2] = m[2][0]; @@ -562,32 +549,31 @@ void R_RotatePointAroundVector( vec3_t dst, const vec3_t dir, const vec3_t point im[2][0] = m[0][2]; im[2][1] = m[1][2]; - memset( zrot, 0, sizeof( zrot ) ); + memset(zrot, 0, sizeof(zrot)); zrot[0][0] = zrot[1][1] = zrot[2][2] = 1.0F; - zrot[0][0] = cos( DEG2RAD( degrees ) ); - zrot[0][1] = sin( DEG2RAD( degrees ) ); - zrot[1][0] = -sin( DEG2RAD( degrees ) ); - zrot[1][1] = cos( DEG2RAD( degrees ) ); + zrot[0][0] = cos(DEG2RAD(degrees)); + zrot[0][1] = sin(DEG2RAD(degrees)); + zrot[1][0] = -sin(DEG2RAD(degrees)); + zrot[1][1] = cos(DEG2RAD(degrees)); - R_ConcatRotations( m, zrot, tmpmat ); - R_ConcatRotations( tmpmat, im, rot ); + R_ConcatRotations(m, zrot, tmpmat); + R_ConcatRotations(tmpmat, im, rot); - for ( i = 0; i < 3; i++ ) - { + for (i = 0; i < 3; i++) { dst[i] = rot[i][0] * point[0] + rot[i][1] * point[1] + rot[i][2] * point[2]; } } -void ProjectPointOnPlane( vec3_t dst, const vec3_t p, const vec3_t normal ) +void ProjectPointOnPlane(vec3_t dst, const vec3_t p, const vec3_t normal) { float d; vec3_t n; float inv_denom; - inv_denom = 1.0F / DotProduct( normal, normal ); + inv_denom = 1.0F / DotProduct(normal, normal); - d = DotProduct( normal, p ) * inv_denom; + d = DotProduct(normal, p) * inv_denom; n[0] = normal[0] * inv_denom; n[1] = normal[1] * inv_denom; @@ -601,7 +587,7 @@ void ProjectPointOnPlane( vec3_t dst, const vec3_t p, const vec3_t normal ) /* ** assumes "src" is normalized */ -void PerpendicularVector( vec3_t dst, const vec3_t src ) +void PerpendicularVector(vec3_t dst, const vec3_t src) { int pos; int i; @@ -611,12 +597,10 @@ void PerpendicularVector( vec3_t dst, const vec3_t src ) /* ** find the smallest magnitude axially aligned vector */ - for ( pos = 0, i = 0; i < 3; i++ ) - { - if ( fabs( src[i] ) < minelem ) - { + for (pos = 0, i = 0; i < 3; i++) { + if (fabs(src[i]) < minelem) { pos = i; - minelem = fabs( src[i] ); + minelem = fabs(src[i]); } } tempvec[0] = tempvec[1] = tempvec[2] = 0.0F; @@ -625,11 +609,11 @@ void PerpendicularVector( vec3_t dst, const vec3_t src ) /* ** project the point onto the plane defined by src */ - ProjectPointOnPlane( dst, tempvec, src ); + ProjectPointOnPlane(dst, tempvec, src); /* ** normalize the result */ - VectorNormalize( dst ); + VectorNormalize(dst); } |