From 0023db327bc1db00068284b70e1db45857aeee35 Mon Sep 17 00:00:00 2001 From: Travis Bradshaw Date: Tue, 31 Jan 2012 14:32:09 -0600 Subject: The Quake sources as originally release under the GPL license on December 21, 1999 --- WinQuake/gl_rmisc.c | 455 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 455 insertions(+) create mode 100644 WinQuake/gl_rmisc.c (limited to 'WinQuake/gl_rmisc.c') diff --git a/WinQuake/gl_rmisc.c b/WinQuake/gl_rmisc.c new file mode 100644 index 0000000..c9719b5 --- /dev/null +++ b/WinQuake/gl_rmisc.c @@ -0,0 +1,455 @@ +/* +Copyright (C) 1996-1997 Id Software, Inc. + +This program is free software; you can redistribute it and/or +modify it under the terms of the GNU General Public License +as published by the Free Software Foundation; either version 2 +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. + +See the GNU General Public License for more details. + +You should have received a copy of the GNU General Public License +along with this program; if not, write to the Free Software +Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. + +*/ +// r_misc.c + +#include "quakedef.h" + + + +/* +================== +R_InitTextures +================== +*/ +void R_InitTextures (void) +{ + int x,y, m; + byte *dest; + +// create a simple checkerboard texture for the default + r_notexture_mip = Hunk_AllocName (sizeof(texture_t) + 16*16+8*8+4*4+2*2, "notexture"); + + r_notexture_mip->width = r_notexture_mip->height = 16; + r_notexture_mip->offsets[0] = sizeof(texture_t); + r_notexture_mip->offsets[1] = r_notexture_mip->offsets[0] + 16*16; + r_notexture_mip->offsets[2] = r_notexture_mip->offsets[1] + 8*8; + r_notexture_mip->offsets[3] = r_notexture_mip->offsets[2] + 4*4; + + for (m=0 ; m<4 ; m++) + { + dest = (byte *)r_notexture_mip + r_notexture_mip->offsets[m]; + for (y=0 ; y< (16>>m) ; y++) + for (x=0 ; x< (16>>m) ; x++) + { + if ( (y< (8>>m) ) ^ (x< (8>>m) ) ) + *dest++ = 0; + else + *dest++ = 0xff; + } + } +} + +byte dottexture[8][8] = +{ + {0,1,1,0,0,0,0,0}, + {1,1,1,1,0,0,0,0}, + {1,1,1,1,0,0,0,0}, + {0,1,1,0,0,0,0,0}, + {0,0,0,0,0,0,0,0}, + {0,0,0,0,0,0,0,0}, + {0,0,0,0,0,0,0,0}, + {0,0,0,0,0,0,0,0}, +}; +void R_InitParticleTexture (void) +{ + int x,y; + byte data[8][8][4]; + + // + // particle texture + // + particletexture = texture_extension_number++; + GL_Bind(particletexture); + + for (x=0 ; x<8 ; x++) + { + for (y=0 ; y<8 ; y++) + { + data[y][x][0] = 255; + data[y][x][1] = 255; + data[y][x][2] = 255; + data[y][x][3] = dottexture[x][y]*255; + } + } + glTexImage2D (GL_TEXTURE_2D, 0, gl_alpha_format, 8, 8, 0, GL_RGBA, GL_UNSIGNED_BYTE, data); + + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); +} + +/* +=============== +R_Envmap_f + +Grab six views for environment mapping tests +=============== +*/ +void R_Envmap_f (void) +{ + byte buffer[256*256*4]; + char name[1024]; + + glDrawBuffer (GL_FRONT); + glReadBuffer (GL_FRONT); + envmap = true; + + r_refdef.vrect.x = 0; + r_refdef.vrect.y = 0; + r_refdef.vrect.width = 256; + r_refdef.vrect.height = 256; + + r_refdef.viewangles[0] = 0; + r_refdef.viewangles[1] = 0; + r_refdef.viewangles[2] = 0; + GL_BeginRendering (&glx, &gly, &glwidth, &glheight); + R_RenderView (); + glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + COM_WriteFile ("env0.rgb", buffer, sizeof(buffer)); + + r_refdef.viewangles[1] = 90; + GL_BeginRendering (&glx, &gly, &glwidth, &glheight); + R_RenderView (); + glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + COM_WriteFile ("env1.rgb", buffer, sizeof(buffer)); + + r_refdef.viewangles[1] = 180; + GL_BeginRendering (&glx, &gly, &glwidth, &glheight); + R_RenderView (); + glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + COM_WriteFile ("env2.rgb", buffer, sizeof(buffer)); + + r_refdef.viewangles[1] = 270; + GL_BeginRendering (&glx, &gly, &glwidth, &glheight); + R_RenderView (); + glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + COM_WriteFile ("env3.rgb", buffer, sizeof(buffer)); + + r_refdef.viewangles[0] = -90; + r_refdef.viewangles[1] = 0; + GL_BeginRendering (&glx, &gly, &glwidth, &glheight); + R_RenderView (); + glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + COM_WriteFile ("env4.rgb", buffer, sizeof(buffer)); + + r_refdef.viewangles[0] = 90; + r_refdef.viewangles[1] = 0; + GL_BeginRendering (&glx, &gly, &glwidth, &glheight); + R_RenderView (); + glReadPixels (0, 0, 256, 256, GL_RGBA, GL_UNSIGNED_BYTE, buffer); + COM_WriteFile ("env5.rgb", buffer, sizeof(buffer)); + + envmap = false; + glDrawBuffer (GL_BACK); + glReadBuffer (GL_BACK); + GL_EndRendering (); +} + +/* +=============== +R_Init +=============== +*/ +void R_Init (void) +{ + extern byte *hunk_base; + extern cvar_t gl_finish; + + Cmd_AddCommand ("timerefresh", R_TimeRefresh_f); + Cmd_AddCommand ("envmap", R_Envmap_f); + Cmd_AddCommand ("pointfile", R_ReadPointFile_f); + + Cvar_RegisterVariable (&r_norefresh); + Cvar_RegisterVariable (&r_lightmap); + Cvar_RegisterVariable (&r_fullbright); + Cvar_RegisterVariable (&r_drawentities); + Cvar_RegisterVariable (&r_drawviewmodel); + Cvar_RegisterVariable (&r_shadows); + Cvar_RegisterVariable (&r_mirroralpha); + Cvar_RegisterVariable (&r_wateralpha); + Cvar_RegisterVariable (&r_dynamic); + Cvar_RegisterVariable (&r_novis); + Cvar_RegisterVariable (&r_speeds); + + Cvar_RegisterVariable (&gl_finish); + Cvar_RegisterVariable (&gl_clear); + Cvar_RegisterVariable (&gl_texsort); + + if (gl_mtexable) + Cvar_SetValue ("gl_texsort", 0.0); + + Cvar_RegisterVariable (&gl_cull); + Cvar_RegisterVariable (&gl_smoothmodels); + Cvar_RegisterVariable (&gl_affinemodels); + Cvar_RegisterVariable (&gl_polyblend); + Cvar_RegisterVariable (&gl_flashblend); + Cvar_RegisterVariable (&gl_playermip); + Cvar_RegisterVariable (&gl_nocolors); + + Cvar_RegisterVariable (&gl_keeptjunctions); + Cvar_RegisterVariable (&gl_reporttjunctions); + + Cvar_RegisterVariable (&gl_doubleeyes); + + R_InitParticles (); + R_InitParticleTexture (); + +#ifdef GLTEST + Test_Init (); +#endif + + playertextures = texture_extension_number; + texture_extension_number += 16; +} + +/* +=============== +R_TranslatePlayerSkin + +Translates a skin texture by the per-player color lookup +=============== +*/ +void R_TranslatePlayerSkin (int playernum) +{ + int top, bottom; + byte translate[256]; + unsigned translate32[256]; + int i, j, s; + model_t *model; + aliashdr_t *paliashdr; + byte *original; + unsigned pixels[512*256], *out; + unsigned scaled_width, scaled_height; + int inwidth, inheight; + byte *inrow; + unsigned frac, fracstep; + extern byte **player_8bit_texels_tbl; + + GL_DisableMultitexture(); + + top = cl.scores[playernum].colors & 0xf0; + bottom = (cl.scores[playernum].colors &15)<<4; + + for (i=0 ; i<256 ; i++) + translate[i] = i; + + for (i=0 ; i<16 ; i++) + { + if (top < 128) // the artists made some backwards ranges. sigh. + translate[TOP_RANGE+i] = top+i; + else + translate[TOP_RANGE+i] = top+15-i; + + if (bottom < 128) + translate[BOTTOM_RANGE+i] = bottom+i; + else + translate[BOTTOM_RANGE+i] = bottom+15-i; + } + + // + // locate the original skin pixels + // + currententity = &cl_entities[1+playernum]; + model = currententity->model; + if (!model) + return; // player doesn't have a model yet + if (model->type != mod_alias) + return; // only translate skins on alias models + + paliashdr = (aliashdr_t *)Mod_Extradata (model); + s = paliashdr->skinwidth * paliashdr->skinheight; + if (currententity->skinnum < 0 || currententity->skinnum >= paliashdr->numskins) { + Con_Printf("(%d): Invalid player skin #%d\n", playernum, currententity->skinnum); + original = (byte *)paliashdr + paliashdr->texels[0]; + } else + original = (byte *)paliashdr + paliashdr->texels[currententity->skinnum]; + if (s & 3) + Sys_Error ("R_TranslateSkin: s&3"); + + inwidth = paliashdr->skinwidth; + inheight = paliashdr->skinheight; + + // because this happens during gameplay, do it fast + // instead of sending it through gl_upload 8 + GL_Bind(playertextures + playernum); + +#if 0 + byte translated[320*200]; + + for (i=0 ; iskinwidth, paliashdr->skinheight, false, false, true); +#else + scaled_width = gl_max_size.value < 512 ? gl_max_size.value : 512; + scaled_height = gl_max_size.value < 256 ? gl_max_size.value : 256; + + // allow users to crunch sizes down even more if they want + scaled_width >>= (int)gl_playermip.value; + scaled_height >>= (int)gl_playermip.value; + + if (VID_Is8bit()) { // 8bit texture upload + byte *out2; + + out2 = (byte *)pixels; + memset(pixels, 0, sizeof(pixels)); + fracstep = inwidth*0x10000/scaled_width; + for (i=0 ; i> 1; + for (j=0 ; j>16]]; + frac += fracstep; + out2[j+1] = translate[inrow[frac>>16]]; + frac += fracstep; + out2[j+2] = translate[inrow[frac>>16]]; + frac += fracstep; + out2[j+3] = translate[inrow[frac>>16]]; + frac += fracstep; + } + } + + GL_Upload8_EXT ((byte *)pixels, scaled_width, scaled_height, false, false); + return; + } + + for (i=0 ; i<256 ; i++) + translate32[i] = d_8to24table[translate[i]]; + + out = pixels; + fracstep = inwidth*0x10000/scaled_width; + for (i=0 ; i> 1; + for (j=0 ; j>16]]; + frac += fracstep; + out[j+1] = translate32[inrow[frac>>16]]; + frac += fracstep; + out[j+2] = translate32[inrow[frac>>16]]; + frac += fracstep; + out[j+3] = translate32[inrow[frac>>16]]; + frac += fracstep; + } + } + glTexImage2D (GL_TEXTURE_2D, 0, gl_solid_format, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, pixels); + + glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR); + glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR); +#endif + +} + + +/* +=============== +R_NewMap +=============== +*/ +void R_NewMap (void) +{ + int i; + + for (i=0 ; i<256 ; i++) + d_lightstylevalue[i] = 264; // normal light value + + memset (&r_worldentity, 0, sizeof(r_worldentity)); + r_worldentity.model = cl.worldmodel; + +// clear out efrags in case the level hasn't been reloaded +// FIXME: is this one short? + for (i=0 ; inumleafs ; i++) + cl.worldmodel->leafs[i].efrags = NULL; + + r_viewleaf = NULL; + R_ClearParticles (); + + GL_BuildLightmaps (); + + // identify sky texture + skytexturenum = -1; + mirrortexturenum = -1; + for (i=0 ; inumtextures ; i++) + { + if (!cl.worldmodel->textures[i]) + continue; + if (!Q_strncmp(cl.worldmodel->textures[i]->name,"sky",3) ) + skytexturenum = i; + if (!Q_strncmp(cl.worldmodel->textures[i]->name,"window02_1",10) ) + mirrortexturenum = i; + cl.worldmodel->textures[i]->texturechain = NULL; + } +#ifdef QUAKE2 + R_LoadSkys (); +#endif +} + + +/* +==================== +R_TimeRefresh_f + +For program optimization +==================== +*/ +void R_TimeRefresh_f (void) +{ + int i; + float start, stop, time; + int startangle; + vrect_t vr; + + glDrawBuffer (GL_FRONT); + glFinish (); + + start = Sys_FloatTime (); + for (i=0 ; i<128 ; i++) + { + r_refdef.viewangles[1] = i/128.0*360.0; + R_RenderView (); + } + + glFinish (); + stop = Sys_FloatTime (); + time = stop-start; + Con_Printf ("%f seconds (%f fps)\n", time, 128/time); + + glDrawBuffer (GL_BACK); + GL_EndRendering (); +} + +void D_FlushCaches (void) +{ +} + + -- cgit v1.2.3