mirror of
https://git.code.sf.net/p/quake/quakeforge-old
synced 2024-11-14 16:31:17 +00:00
3a8f38c217
only set it from the cmdline (you now CAN set it from the cmdline BTW!), it defaults to the current directory if you don't. New cvar fs_sharepath. Defaults to fs_basepath->string and is changed in the same manner. If you do change it, files in gamedirs under it will be used first with basepath's files overriding them. This allows you to keep your paks in a read-only location (cdrom or unix /usr/share) and still be able to override those files and save configs.
1478 lines
33 KiB
C
1478 lines
33 KiB
C
/*
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gl_draw.c
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GL renderer draw routines
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Copyright (C) 1996-1997 Id Software, Inc.
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Copyright (C) 1999,2000 contributors of the QuakeForge project
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Please see the file "AUTHORS" for a list of contributors
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; either version 2
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of the License, or (at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to:
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Free Software Foundation, Inc.
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59 Temple Place - Suite 330
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Boston, MA 02111-1307, USA
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$Id$
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*/
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#include <qtypes.h>
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#include <quakedef.h>
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#include <cvar.h>
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#include <wad.h>
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#include <glquake.h>
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#include <console.h>
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#include <sbar.h>
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#include <sys.h>
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#include <cmd.h>
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#include <client.h>
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#include <lib_replace.h>
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extern unsigned char d_15to8table[65536];
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extern cvar_t *crosshair, *cl_crossx, *cl_crossy, *crosshaircolor;
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cvar_t *gl_nobind;
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cvar_t *gl_max_size;
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cvar_t *gl_picmip;
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cvar_t *gl_conspin;
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cvar_t *gl_conalpha;
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cvar_t *gl_constretch;
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byte *draw_chars; // 8*8 graphic characters
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qpic_t *draw_disc;
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qpic_t *draw_backtile;
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int translate_texture;
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int char_texture;
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int cs_texture; // crosshair 2 texture
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int cs_texture3; // crosshair 3 texture
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int bc_texture; // used for noclip
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static byte cs_data[64] = {
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xff, 0xfe, 0xff,
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xfe, 0xff, 0xff, 0xff, 0xff,
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0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff
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};
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static byte cs_data3[256] = {
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0xfe,0xfe,0xfe,0xfe,0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xfe,
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0xfe,0xfe,0xfe,0xff,0xfe,0xfe,0xfe,0xfe,0xff,0xff,0xff,0xfe,
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0xff,0xff,0xff,0xfe,0xfe,0xfe,0xfe,0xff,0xfe,0xfe,0xff,0xff,
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0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xff,0xff,0xfe,0xfe,0xff,
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0xfe,0xfe,0xff,0xff,0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xff,
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0xff,0xfe,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xff,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xff,0xfe,
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0xff,0xfe,0xfe,0xfe,0xfe,0xfe,0xfe,0xff,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xfe,0xfe,0xff,0xff,
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0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xff,0xff,0xfe,0xfe,0xff,
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0xfe,0xfe,0xff,0xff,0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xff,
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0xff,0xfe,0xfe,0xff,0xfe,0xfe,0xfe,0xfe,0xff,0xff,0xff,0xfe,
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0xff,0xff,0xff,0xfe,0xfe,0xfe,0xfe,0xff,0xfe,0xfe,0xfe,0xfe,
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0xff,0xff,0xff,0xfe,0xff,0xff,0xff,0xfe,0xfe,0xfe,0xfe,0xff,
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0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,0xff,
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0xff,0xff,0xff,0xff};
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typedef struct
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{
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int texnum;
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float sl, tl, sh, th;
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} glpic_t;
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//byte conback_buffer[sizeof(qpic_t) + sizeof(glpic_t)];
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//qpic_t *conback = (qpic_t *)conback_buffer;
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int gl_lightmap_format = 4;
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int gl_solid_format = 3;
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int gl_alpha_format = 4;
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int gl_filter_min = GL_LINEAR_MIPMAP_NEAREST;
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int gl_filter_max = GL_LINEAR;
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int texels;
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typedef struct
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{
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int texnum;
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char identifier[64];
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int width, height;
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qboolean mipmap;
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} gltexture_t;
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#define MAX_GLTEXTURES 1024
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gltexture_t gltextures[MAX_GLTEXTURES];
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int numgltextures;
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void GL_Bind (int texnum)
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{
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if (gl_nobind->value)
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texnum = char_texture;
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if (currenttexture == texnum)
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return;
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currenttexture = texnum;
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#ifdef _WIN32
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bindTexFunc (GL_TEXTURE_2D, texnum);
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#else
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glBindTexture (GL_TEXTURE_2D, texnum);
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#endif
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}
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/*
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=============================================================================
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scrap allocation
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Allocate all the little status bar obejcts into a single texture
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to crutch up stupid hardware / drivers
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=============================================================================
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*/
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#define MAX_SCRAPS 4
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#define BLOCK_WIDTH 256
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#define BLOCK_HEIGHT 256
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int scrap_allocated[MAX_SCRAPS][BLOCK_WIDTH];
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byte scrap_texels[MAX_SCRAPS][BLOCK_WIDTH*BLOCK_HEIGHT*4];
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qboolean scrap_dirty;
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int scrap_texnum;
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// returns a texture number and the position inside it
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int Scrap_AllocBlock (int w, int h, int *x, int *y)
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{
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int i, j;
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int best, best2;
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int texnum;
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for (texnum=0 ; texnum<MAX_SCRAPS ; texnum++)
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{
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best = BLOCK_HEIGHT;
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for (i=0 ; i<BLOCK_WIDTH-w ; i++)
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{
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best2 = 0;
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for (j=0 ; j<w ; j++)
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{
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if (scrap_allocated[texnum][i+j] >= best)
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break;
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if (scrap_allocated[texnum][i+j] > best2)
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best2 = scrap_allocated[texnum][i+j];
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}
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if (j == w)
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{ // this is a valid spot
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*x = i;
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*y = best = best2;
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}
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}
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if (best + h > BLOCK_HEIGHT)
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continue;
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for (i=0 ; i<w ; i++)
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scrap_allocated[texnum][*x + i] = best + h;
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return texnum;
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}
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Sys_Error ("Scrap_AllocBlock: full");
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return 0;
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}
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int scrap_uploads;
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void Scrap_Upload (void)
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{
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scrap_uploads++;
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GL_Bind(scrap_texnum);
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GL_Upload8 (scrap_texels[0], BLOCK_WIDTH, BLOCK_HEIGHT, false, true);
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scrap_dirty = false;
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}
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//=============================================================================
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/* Support Routines */
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typedef struct cachepic_s
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{
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char name[MAX_QPATH];
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qpic_t pic;
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byte padding[32]; // for appended glpic
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} cachepic_t;
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#define MAX_CACHED_PICS 128
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cachepic_t menu_cachepics[MAX_CACHED_PICS];
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int menu_numcachepics;
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byte menuplyr_pixels[4096];
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int pic_texels;
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int pic_count;
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qpic_t *Draw_PicFromWad (char *name)
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{
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qpic_t *p;
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glpic_t *gl;
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p = W_GetLumpName (name);
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gl = (glpic_t *)p->data;
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// load little ones into the scrap
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if (p->width < 64 && p->height < 64)
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{
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int x, y;
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int i, j, k;
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int texnum;
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texnum = Scrap_AllocBlock (p->width, p->height, &x, &y);
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scrap_dirty = true;
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k = 0;
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for (i=0 ; i<p->height ; i++)
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for (j=0 ; j<p->width ; j++, k++)
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scrap_texels[texnum][(y+i)*BLOCK_WIDTH + x + j] = p->data[k];
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texnum += scrap_texnum;
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gl->texnum = texnum;
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gl->sl = (x+0.01)/(float)BLOCK_WIDTH;
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gl->sh = (x+p->width-0.01)/(float)BLOCK_WIDTH;
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gl->tl = (y+0.01)/(float)BLOCK_WIDTH;
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gl->th = (y+p->height-0.01)/(float)BLOCK_WIDTH;
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pic_count++;
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pic_texels += p->width*p->height;
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}
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else
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{
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gl->texnum = GL_LoadPicTexture (p);
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gl->sl = 0;
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gl->sh = 1;
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gl->tl = 0;
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gl->th = 1;
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}
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return p;
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}
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/*
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================
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Draw_CachePic
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================
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*/
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qpic_t *Draw_CachePic (char *path)
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{
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cachepic_t *pic;
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int i;
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qpic_t *dat;
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glpic_t *gl;
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for (pic=menu_cachepics, i=0 ; i<menu_numcachepics ; pic++, i++)
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if (!strcmp (path, pic->name))
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return &pic->pic;
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if (menu_numcachepics == MAX_CACHED_PICS)
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Sys_Error ("menu_numcachepics == MAX_CACHED_PICS");
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menu_numcachepics++;
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strcpy (pic->name, path);
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//
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// load the pic from disk
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//
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dat = (qpic_t *)COM_LoadTempFile (path);
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if (!dat)
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Sys_Error ("Draw_CachePic: failed to load %s", path);
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SwapPic (dat);
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// HACK HACK HACK --- we need to keep the bytes for
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// the translatable player picture just for the menu
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// configuration dialog
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if (!strcmp (path, "gfx/menuplyr.lmp"))
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memcpy (menuplyr_pixels, dat->data, dat->width*dat->height);
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pic->pic.width = dat->width;
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pic->pic.height = dat->height;
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gl = (glpic_t *)pic->pic.data;
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gl->texnum = GL_LoadPicTexture (dat);
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gl->sl = 0;
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gl->sh = 1;
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gl->tl = 0;
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gl->th = 1;
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return &pic->pic;
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}
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typedef struct
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{
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char *name;
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int minimize, maximize;
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} glmode_t;
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glmode_t modes[] = {
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{"GL_NEAREST", GL_NEAREST, GL_NEAREST},
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{"GL_LINEAR", GL_LINEAR, GL_LINEAR},
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{"GL_NEAREST_MIPMAP_NEAREST", GL_NEAREST_MIPMAP_NEAREST, GL_NEAREST},
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{"GL_LINEAR_MIPMAP_NEAREST", GL_LINEAR_MIPMAP_NEAREST, GL_LINEAR},
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{"GL_NEAREST_MIPMAP_LINEAR", GL_NEAREST_MIPMAP_LINEAR, GL_NEAREST},
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{"GL_LINEAR_MIPMAP_LINEAR", GL_LINEAR_MIPMAP_LINEAR, GL_LINEAR}
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};
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/*
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===============
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Draw_TextureMode_f
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===============
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*/
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void Draw_TextureMode_f (void)
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{
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int i;
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gltexture_t *glt;
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if (Cmd_Argc() == 1)
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{
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for (i=0 ; i< 6 ; i++)
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if (gl_filter_min == modes[i].minimize)
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{
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Con_Printf ("%s\n", modes[i].name);
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return;
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}
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Con_Printf ("current filter is unknown???\n");
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return;
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}
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for (i=0 ; i< 6 ; i++)
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{
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if (!Q_strcasecmp (modes[i].name, Cmd_Argv(1) ) )
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break;
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}
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if (i == 6)
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{
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Con_Printf ("bad filter name\n");
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return;
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}
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gl_filter_min = modes[i].minimize;
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gl_filter_max = modes[i].maximize;
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// change all the existing mipmap texture objects
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for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
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{
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if (glt->mipmap)
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{
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GL_Bind (glt->texnum);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
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}
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}
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}
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/*
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===============
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Draw_Init
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===============
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*/
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void Draw_Init (void)
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{
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int i;
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gl_nobind = Cvar_Get ("gl_nobind","0",0,"None");
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gl_max_size = Cvar_Get ("gl_max_size","1024",0,"None");
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gl_picmip = Cvar_Get ("gl_picmip","0",0,"None");
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gl_conspin = Cvar_Get ("gl_conspin", "0", CVAR_NONE,
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"The speed at which the console background spins "
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"around. 0 to disable. (default 0)");
|
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gl_conalpha = Cvar_Get ("gl_conalpha", "0.6", CVAR_NONE,
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"Transparency for the console background. Set to "
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"1 for opaque, 0 for transparent. (default 0.6)");
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gl_constretch = Cvar_Get ("gl_constretch", "0", CVAR_NONE,
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"If set to 1 will stretch the console image instead "
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"of sliding it up and down. (default 0)");
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// 3dfx can only handle 256 wide textures
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if (!Q_strncasecmp ((char *)gl_renderer, "3dfx",4) ||
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!Q_strncasecmp ((char *)gl_renderer, "Mesa",4))
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Cvar_Set (gl_max_size, "256");
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Cmd_AddCommand ("gl_texturemode", &Draw_TextureMode_f);
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// load the console background and the charset
|
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// by hand, because we need to write the version
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// string into the background before turning
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// it into a texture
|
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draw_chars = W_GetLumpName ("conchars");
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for (i=0 ; i<256*64 ; i++)
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if (draw_chars[i] == 0)
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draw_chars[i] = 255; // proper transparent color
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// now turn them into textures
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char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true);
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cs_texture3 = GL_LoadTexture ("crosshair3", 16, 16, cs_data3,
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false, true);
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cs_texture = GL_LoadTexture ("crosshair", 8, 8, cs_data, false, true);
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|
|
// For some reason which I cannot claim to fathom, it seems to be
|
|
// necessary to call GL_LoadTexture() here in descending (in terms
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|
// of size) order else things don't work right. No idea why this
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|
// is so.
|
|
// - knghtbrd (2 Jan 2000)
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|
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
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|
|
// save slots for scraps
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scrap_texnum = texture_extension_number;
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texture_extension_number += MAX_SCRAPS;
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|
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//
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// get the other pics we need
|
|
//
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draw_disc = Draw_PicFromWad ("disc");
|
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draw_backtile = Draw_PicFromWad ("backtile");
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|
}
|
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|
|
|
|
/*
|
|
================
|
|
Draw_Character
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|
|
Draws one 8*8 graphics character with 0 being transparent.
|
|
It can be clipped to the top of the screen to allow the console to be
|
|
smoothly scrolled off.
|
|
================
|
|
*/
|
|
void Draw_Character (int x, int y, int num)
|
|
{
|
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int row, col;
|
|
float frow, fcol, size;
|
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|
|
if (num == 32)
|
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return; // space
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|
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num &= 255;
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|
|
if (y <= -8)
|
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return; // totally off screen
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|
|
row = num>>4;
|
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col = num&15;
|
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|
|
frow = row*0.0625;
|
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fcol = col*0.0625;
|
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size = 0.0625;
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|
|
GL_Bind (char_texture);
|
|
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (fcol, frow);
|
|
glVertex2f (x, y);
|
|
glTexCoord2f (fcol + size, frow);
|
|
glVertex2f (x+8, y);
|
|
glTexCoord2f (fcol + size, frow + size);
|
|
glVertex2f (x+8, y+8);
|
|
glTexCoord2f (fcol, frow + size);
|
|
glVertex2f (x, y+8);
|
|
glEnd ();
|
|
}
|
|
|
|
/*
|
|
================
|
|
Draw_String
|
|
================
|
|
*/
|
|
void Draw_String (int x, int y, char *str)
|
|
{
|
|
while (*str)
|
|
{
|
|
Draw_Character (x, y, *str);
|
|
str++;
|
|
x += 8;
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
Draw_Alt_String
|
|
================
|
|
*/
|
|
void
|
|
Draw_Alt_String (int x, int y, char *str)
|
|
{
|
|
while (*str)
|
|
{
|
|
Draw_Character (x, y, (*str) | 0x80);
|
|
str++;
|
|
x += 8;
|
|
}
|
|
}
|
|
|
|
void
|
|
Draw_Crosshair(void)
|
|
{
|
|
int x, y;
|
|
extern vrect_t scr_vrect;
|
|
unsigned char *pColor;
|
|
|
|
if (crosshair->value == 3) {
|
|
x = scr_vrect.x + scr_vrect.width/2 - 3 + cl_crossx->value;
|
|
y = scr_vrect.y + scr_vrect.height/2 - 3 + cl_crossy->value;
|
|
|
|
glTexEnvf ( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
|
|
pColor = (unsigned char *) &d_8to24table[(byte) crosshaircolor->value];
|
|
glColor4ubv ( pColor );
|
|
GL_Bind (cs_texture3);
|
|
|
|
glBegin (GL_QUADS);
|
|
|
|
glTexCoord2f (0, 0);
|
|
glVertex2f (x - 7, y - 1);
|
|
glTexCoord2f (1, 0);
|
|
glVertex2f (x + 9, y - 1);
|
|
glTexCoord2f (1, 1);
|
|
glVertex2f (x + 9, y + 17);
|
|
glTexCoord2f (0, 1);
|
|
glVertex2f (x - 7, y + 17);
|
|
|
|
glEnd ();
|
|
|
|
glTexEnvf ( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
|
|
} else if (crosshair->value == 2) {
|
|
x = scr_vrect.x + scr_vrect.width/2 - 3 + cl_crossx->value;
|
|
y = scr_vrect.y + scr_vrect.height/2 - 3 + cl_crossy->value;
|
|
|
|
glTexEnvf ( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
|
|
pColor = (unsigned char *) &d_8to24table[(byte) crosshaircolor->value];
|
|
glColor4ubv ( pColor );
|
|
GL_Bind (cs_texture);
|
|
|
|
glBegin (GL_QUADS);
|
|
|
|
glTexCoord2f (0, 0);
|
|
glVertex2f (x - 4, y - 4);
|
|
glTexCoord2f (1, 0);
|
|
glVertex2f (x + 12, y - 4);
|
|
glTexCoord2f (1, 1);
|
|
glVertex2f (x + 12, y + 12);
|
|
glTexCoord2f (0, 1);
|
|
glVertex2f (x - 4, y + 12);
|
|
|
|
glEnd ();
|
|
|
|
glTexEnvf ( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE );
|
|
} else if (crosshair->value)
|
|
Draw_Character (scr_vrect.x + scr_vrect.width/2-4
|
|
+ cl_crossx->value, scr_vrect.y
|
|
+ scr_vrect.height/2-4 + cl_crossy->value,
|
|
'+');
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
Draw_DebugChar
|
|
|
|
Draws a single character directly to the upper right corner of the screen.
|
|
This is for debugging lockups by drawing different chars in different parts
|
|
of the code.
|
|
================
|
|
*/
|
|
void Draw_DebugChar (char num)
|
|
{
|
|
}
|
|
|
|
/*
|
|
=============
|
|
Draw_Pic
|
|
=============
|
|
*/
|
|
void Draw_Pic (int x, int y, qpic_t *pic)
|
|
{
|
|
glpic_t *gl;
|
|
|
|
if (scrap_dirty)
|
|
Scrap_Upload ();
|
|
gl = (glpic_t *)pic->data;
|
|
glColor4f (1,1,1,1);
|
|
GL_Bind (gl->texnum);
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (gl->sl, gl->tl);
|
|
glVertex2f (x, y);
|
|
glTexCoord2f (gl->sh, gl->tl);
|
|
glVertex2f (x+pic->width, y);
|
|
glTexCoord2f (gl->sh, gl->th);
|
|
glVertex2f (x+pic->width, y+pic->height);
|
|
glTexCoord2f (gl->sl, gl->th);
|
|
glVertex2f (x, y+pic->height);
|
|
glEnd ();
|
|
}
|
|
|
|
/*
|
|
=============
|
|
Draw_AlphaPic
|
|
=============
|
|
*/
|
|
void Draw_AlphaPic (int x, int y, qpic_t *pic, float alpha)
|
|
{
|
|
glpic_t *gl;
|
|
|
|
if (scrap_dirty)
|
|
Scrap_Upload ();
|
|
gl = (glpic_t *)pic->data;
|
|
glDisable(GL_ALPHA_TEST);
|
|
glEnable (GL_BLEND);
|
|
// glBlendFunc(GL_SRC_ALPHA, GL_ONE_MINUS_SRC_ALPHA);
|
|
glCullFace(GL_FRONT);
|
|
glColor4f (1,1,1,alpha);
|
|
GL_Bind (gl->texnum);
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (gl->sl, gl->tl);
|
|
glVertex2f (x, y);
|
|
glTexCoord2f (gl->sh, gl->tl);
|
|
glVertex2f (x+pic->width, y);
|
|
glTexCoord2f (gl->sh, gl->th);
|
|
glVertex2f (x+pic->width, y+pic->height);
|
|
glTexCoord2f (gl->sl, gl->th);
|
|
glVertex2f (x, y+pic->height);
|
|
glEnd ();
|
|
glColor4f (1,1,1,1);
|
|
glEnable(GL_ALPHA_TEST);
|
|
glDisable (GL_BLEND);
|
|
}
|
|
|
|
void Draw_SubPic(int x, int y, qpic_t *pic, int srcx, int srcy, int width, int height)
|
|
{
|
|
glpic_t *gl;
|
|
float newsl, newtl, newsh, newth;
|
|
float oldglwidth, oldglheight;
|
|
|
|
if (scrap_dirty)
|
|
Scrap_Upload ();
|
|
gl = (glpic_t *)pic->data;
|
|
|
|
oldglwidth = gl->sh - gl->sl;
|
|
oldglheight = gl->th - gl->tl;
|
|
|
|
newsl = gl->sl + (srcx*oldglwidth)/pic->width;
|
|
newsh = newsl + (width*oldglwidth)/pic->width;
|
|
|
|
newtl = gl->tl + (srcy*oldglheight)/pic->height;
|
|
newth = newtl + (height*oldglheight)/pic->height;
|
|
|
|
glColor4f (1,1,1,1);
|
|
GL_Bind (gl->texnum);
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (newsl, newtl);
|
|
glVertex2f (x, y);
|
|
glTexCoord2f (newsh, newtl);
|
|
glVertex2f (x+width, y);
|
|
glTexCoord2f (newsh, newth);
|
|
glVertex2f (x+width, y+height);
|
|
glTexCoord2f (newsl, newth);
|
|
glVertex2f (x, y+height);
|
|
glEnd ();
|
|
}
|
|
|
|
/*
|
|
=============
|
|
Draw_TransPic
|
|
=============
|
|
*/
|
|
void Draw_TransPic (int x, int y, qpic_t *pic)
|
|
{
|
|
|
|
if (x < 0 || (unsigned)(x + pic->width) > vid.width || y < 0 ||
|
|
(unsigned)(y + pic->height) > vid.height)
|
|
{
|
|
Sys_Error ("Draw_TransPic: bad coordinates");
|
|
}
|
|
|
|
Draw_Pic (x, y, pic);
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
Draw_TransPicTranslate
|
|
|
|
Only used for the player color selection menu
|
|
=============
|
|
*/
|
|
void Draw_TransPicTranslate (int x, int y, qpic_t *pic, byte *translation)
|
|
{
|
|
int v, u, c;
|
|
unsigned trans[64*64], *dest;
|
|
byte *src;
|
|
int p;
|
|
|
|
GL_Bind (translate_texture);
|
|
|
|
c = pic->width * pic->height;
|
|
|
|
dest = trans;
|
|
for (v=0 ; v<64 ; v++, dest += 64)
|
|
{
|
|
src = &menuplyr_pixels[ ((v*pic->height)>>6) *pic->width];
|
|
for (u=0 ; u<64 ; u++)
|
|
{
|
|
p = src[(u*pic->width)>>6];
|
|
if (p == 255)
|
|
dest[u] = p;
|
|
else
|
|
dest[u] = d_8to24table[translation[p]];
|
|
}
|
|
}
|
|
|
|
glTexImage2D (GL_TEXTURE_2D, 0, gl_alpha_format, 64, 64, 0,
|
|
#ifdef WORDS_BIGENDIAN
|
|
GL_ABGR_EXT,
|
|
#else
|
|
GL_RGBA,
|
|
#endif
|
|
GL_UNSIGNED_BYTE, trans);
|
|
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
|
|
|
|
glColor3f (1,1,1);
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (0, 0);
|
|
glVertex2f (x, y);
|
|
glTexCoord2f (1, 0);
|
|
glVertex2f (x+pic->width, y);
|
|
glTexCoord2f (1, 1);
|
|
glVertex2f (x+pic->width, y+pic->height);
|
|
glTexCoord2f (0, 1);
|
|
glVertex2f (x, y+pic->height);
|
|
glEnd ();
|
|
}
|
|
|
|
/*
|
|
================
|
|
Draw_ConsoleBackground
|
|
|
|
================
|
|
*/
|
|
void Draw_ConsoleBackground (int lines)
|
|
{
|
|
int y;
|
|
qpic_t *conback;
|
|
glpic_t *gl;
|
|
float alpha;
|
|
float ofs;
|
|
|
|
conback = Draw_CachePic ("gfx/conback.lmp");
|
|
gl = (glpic_t *)conback->data;
|
|
|
|
y = vid.height * 0.9;
|
|
if (lines > y)
|
|
alpha = 1;
|
|
else
|
|
alpha = (float)(gl_conalpha->value * 2 * lines)/y;
|
|
|
|
if (gl_conspin->value)
|
|
{
|
|
static float xangle = 0;
|
|
static float xfactor = .3f;
|
|
static float xstep = .005f;
|
|
|
|
glPushMatrix ();
|
|
glMatrixMode (GL_TEXTURE);
|
|
glPushMatrix ();
|
|
glLoadIdentity ();
|
|
xangle += gl_conspin->value;
|
|
xfactor += xstep;
|
|
if (xfactor > 8 || xfactor < .3f)
|
|
xstep = -xstep;
|
|
glRotatef (xangle, 0, 0, 1);
|
|
glScalef (xfactor, xfactor, xfactor);
|
|
}
|
|
|
|
GL_Bind (gl->texnum);
|
|
glColor4f (1,1,1,alpha);
|
|
if (alpha < 1.0)
|
|
{
|
|
glDisable(GL_ALPHA_TEST);
|
|
glEnable (GL_BLEND);
|
|
glCullFace(GL_FRONT);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE);
|
|
}
|
|
|
|
if (gl_constretch->value)
|
|
ofs = 0;
|
|
else
|
|
ofs = (vid.height - lines)/(float)vid.height;
|
|
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (gl->sl, gl->tl + ofs);
|
|
glVertex2f (0, 0);
|
|
glTexCoord2f (gl->sh, gl->tl + ofs);
|
|
glVertex2f (vid.width, 0);
|
|
glTexCoord2f (gl->sh, gl->th);
|
|
glVertex2f (vid.width, lines);
|
|
glTexCoord2f (gl->sl, gl->th);
|
|
glVertex2f (0, lines);
|
|
glEnd ();
|
|
|
|
|
|
if (alpha < 1.0)
|
|
{
|
|
glColor4f (1,1,1,1);
|
|
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
|
|
glEnable(GL_ALPHA_TEST);
|
|
glDisable (GL_BLEND);
|
|
}
|
|
|
|
if (gl_conspin->value) {
|
|
glPopMatrix ();
|
|
glMatrixMode (GL_MODELVIEW);
|
|
glPopMatrix ();
|
|
}
|
|
|
|
Draw_Alt_String (vid.conwidth - strlen(cl_verstring->string)*8 - 11,
|
|
lines-14, cl_verstring->string);
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
Draw_TileClear
|
|
|
|
This repeats a 64*64 tile graphic to fill the screen around a sized down
|
|
refresh window.
|
|
=============
|
|
*/
|
|
void Draw_TileClear (int x, int y, int w, int h)
|
|
{
|
|
glColor3f (1,1,1);
|
|
GL_Bind (*(int *)draw_backtile->data);
|
|
glBegin (GL_QUADS);
|
|
glTexCoord2f (x/64.0, y/64.0);
|
|
glVertex2f (x, y);
|
|
glTexCoord2f ( (x+w)/64.0, y/64.0);
|
|
glVertex2f (x+w, y);
|
|
glTexCoord2f ( (x+w)/64.0, (y+h)/64.0);
|
|
glVertex2f (x+w, y+h);
|
|
glTexCoord2f ( x/64.0, (y+h)/64.0 );
|
|
glVertex2f (x, y+h);
|
|
glEnd ();
|
|
}
|
|
|
|
|
|
/*
|
|
=============
|
|
Draw_Fill
|
|
|
|
Fills a box of pixels with a single color
|
|
=============
|
|
*/
|
|
void Draw_Fill (int x, int y, int w, int h, int c)
|
|
{
|
|
glDisable (GL_TEXTURE_2D);
|
|
glColor3f (host_basepal[c*3]/255.0,
|
|
host_basepal[c*3+1]/255.0,
|
|
host_basepal[c*3+2]/255.0);
|
|
|
|
glBegin (GL_QUADS);
|
|
|
|
glVertex2f (x,y);
|
|
glVertex2f (x+w, y);
|
|
glVertex2f (x+w, y+h);
|
|
glVertex2f (x, y+h);
|
|
|
|
glEnd ();
|
|
glColor3f (1,1,1);
|
|
glEnable (GL_TEXTURE_2D);
|
|
}
|
|
//=============================================================================
|
|
|
|
/*
|
|
================
|
|
Draw_FadeScreen
|
|
|
|
================
|
|
*/
|
|
void Draw_FadeScreen (void)
|
|
{
|
|
glEnable (GL_BLEND);
|
|
glDisable (GL_TEXTURE_2D);
|
|
glDisable (GL_ALPHA_TEST);
|
|
glColor4f (0, 0, 0, 0.8);
|
|
glBegin (GL_QUADS);
|
|
|
|
glVertex2f (0,0);
|
|
glVertex2f (vid.width, 0);
|
|
glVertex2f (vid.width, vid.height);
|
|
glVertex2f (0, vid.height);
|
|
|
|
glEnd ();
|
|
glColor4f (1,1,1,1);
|
|
glEnable (GL_ALPHA_TEST);
|
|
glEnable (GL_TEXTURE_2D);
|
|
glDisable (GL_BLEND);
|
|
|
|
Sbar_Changed();
|
|
}
|
|
|
|
//=============================================================================
|
|
|
|
/*
|
|
================
|
|
Draw_BeginDisc
|
|
|
|
Draws the little blue disc in the corner of the screen.
|
|
Call before beginning any disc IO.
|
|
================
|
|
*/
|
|
void Draw_BeginDisc (void)
|
|
{
|
|
if (!draw_disc)
|
|
return;
|
|
glDrawBuffer (GL_FRONT);
|
|
Draw_Pic (vid.width - 24, 0, draw_disc);
|
|
glDrawBuffer (GL_BACK);
|
|
}
|
|
|
|
|
|
/*
|
|
================
|
|
Draw_EndDisc
|
|
|
|
Erases the disc icon.
|
|
Call after completing any disc IO
|
|
================
|
|
*/
|
|
void Draw_EndDisc (void)
|
|
{
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_Set2D
|
|
|
|
Setup as if the screen was 320*200
|
|
================
|
|
*/
|
|
void GL_Set2D (void)
|
|
{
|
|
glViewport (glx, gly, glwidth, glheight);
|
|
|
|
glMatrixMode(GL_PROJECTION);
|
|
glLoadIdentity ();
|
|
glOrtho (0, vid.width, vid.height, 0, -99999, 99999);
|
|
|
|
glMatrixMode(GL_MODELVIEW);
|
|
glLoadIdentity ();
|
|
|
|
glDisable (GL_DEPTH_TEST);
|
|
glDisable (GL_CULL_FACE);
|
|
glDisable (GL_BLEND);
|
|
glEnable (GL_ALPHA_TEST);
|
|
// glDisable (GL_ALPHA_TEST);
|
|
|
|
glColor4f (1,1,1,1);
|
|
}
|
|
|
|
//====================================================================
|
|
|
|
/*
|
|
================
|
|
GL_FindTexture
|
|
================
|
|
*/
|
|
int GL_FindTexture (char *identifier)
|
|
{
|
|
int i;
|
|
gltexture_t *glt;
|
|
|
|
for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
|
|
{
|
|
if (!strcmp (identifier, glt->identifier))
|
|
return gltextures[i].texnum;
|
|
}
|
|
|
|
return -1;
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_ResampleTexture
|
|
================
|
|
*/
|
|
void GL_ResampleTexture (unsigned *in, int inwidth, int inheight, unsigned *out, int outwidth, int outheight)
|
|
{
|
|
int i, j;
|
|
unsigned *inrow;
|
|
unsigned frac, fracstep;
|
|
|
|
fracstep = inwidth*0x10000/outwidth;
|
|
for (i=0 ; i<outheight ; i++, out += outwidth)
|
|
{
|
|
inrow = in + inwidth*(i*inheight/outheight);
|
|
frac = fracstep >> 1;
|
|
for (j=0 ; j<outwidth ; j+=4)
|
|
{
|
|
out[j] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
out[j+1] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
out[j+2] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
out[j+3] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_Resample8BitTexture -- JACK
|
|
================
|
|
*/
|
|
void GL_Resample8BitTexture (unsigned char *in, int inwidth, int inheight, unsigned char *out, int outwidth, int outheight)
|
|
{
|
|
int i, j;
|
|
unsigned char *inrow;
|
|
unsigned frac, fracstep;
|
|
|
|
fracstep = inwidth*0x10000/outwidth;
|
|
for (i=0 ; i<outheight ; i++, out += outwidth)
|
|
{
|
|
inrow = in + inwidth*(i*inheight/outheight);
|
|
frac = fracstep >> 1;
|
|
for (j=0 ; j<outwidth ; j+=4)
|
|
{
|
|
out[j] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
out[j+1] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
out[j+2] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
out[j+3] = inrow[frac>>16];
|
|
frac += fracstep;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_MipMap
|
|
|
|
Operates in place, quartering the size of the texture
|
|
================
|
|
*/
|
|
void GL_MipMap (byte *in, int width, int height)
|
|
{
|
|
int i, j;
|
|
byte *out;
|
|
|
|
width <<=2;
|
|
height >>= 1;
|
|
out = in;
|
|
for (i=0 ; i<height ; i++, in+=width)
|
|
{
|
|
for (j=0 ; j<width ; j+=8, out+=4, in+=8)
|
|
{
|
|
out[0] = (in[0] + in[4] + in[width+0] + in[width+4])>>2;
|
|
out[1] = (in[1] + in[5] + in[width+1] + in[width+5])>>2;
|
|
out[2] = (in[2] + in[6] + in[width+2] + in[width+6])>>2;
|
|
out[3] = (in[3] + in[7] + in[width+3] + in[width+7])>>2;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_MipMap8Bit
|
|
|
|
Mipping for 8 bit textures
|
|
================
|
|
*/
|
|
void GL_MipMap8Bit (byte *in, int width, int height)
|
|
{
|
|
int i, j;
|
|
byte *out;
|
|
unsigned short r,g,b;
|
|
byte *at1, *at2, *at3, *at4;
|
|
|
|
height >>= 1;
|
|
out = in;
|
|
for (i=0 ; i<height ; i++, in+=width)
|
|
for (j=0 ; j<width ; j+=2, out+=1, in+=2)
|
|
{
|
|
at1 = (byte *) &d_8to24table[in[0]];
|
|
at2 = (byte *) &d_8to24table[in[1]];
|
|
at3 = (byte *) &d_8to24table[in[width+0]];
|
|
at4 = (byte *) &d_8to24table[in[width+1]];
|
|
|
|
r = (at1[0]+at2[0]+at3[0]+at4[0]); r>>=5;
|
|
g = (at1[1]+at2[1]+at3[1]+at4[1]); g>>=5;
|
|
b = (at1[2]+at2[2]+at3[2]+at4[2]); b>>=5;
|
|
|
|
out[0] = d_15to8table[(r<<0) + (g<<5) + (b<<10)];
|
|
}
|
|
}
|
|
|
|
/*
|
|
===============
|
|
GL_Upload32
|
|
===============
|
|
*/
|
|
void GL_Upload32 (unsigned *data, int width, int height, qboolean mipmap, qboolean alpha)
|
|
{
|
|
int samples;
|
|
static unsigned scaled[1024*512]; // [512*256];
|
|
int scaled_width, scaled_height;
|
|
|
|
for (scaled_width = 1 ; scaled_width < width ; scaled_width<<=1)
|
|
;
|
|
for (scaled_height = 1 ; scaled_height < height ; scaled_height<<=1)
|
|
;
|
|
|
|
scaled_width >>= (int)gl_picmip->value;
|
|
scaled_height >>= (int)gl_picmip->value;
|
|
|
|
if (scaled_width > gl_max_size->value)
|
|
scaled_width = gl_max_size->value;
|
|
if (scaled_height > gl_max_size->value)
|
|
scaled_height = gl_max_size->value;
|
|
|
|
if (scaled_width * scaled_height > sizeof(scaled)/4)
|
|
Sys_Error ("GL_LoadTexture: too big");
|
|
|
|
samples = alpha ? gl_alpha_format : gl_solid_format;
|
|
|
|
#if 0
|
|
if (mipmap)
|
|
gluBuild2DMipmaps (GL_TEXTURE_2D, samples, width, height, GL_RGBA, GL_UNSIGNED_BYTE, trans);
|
|
else if (scaled_width == width && scaled_height == height)
|
|
glTexImage2D (GL_TEXTURE_2D, 0, samples, width, height, 0, GL_RGBA, GL_UNSIGNED_BYTE, trans);
|
|
else
|
|
{
|
|
gluScaleImage (GL_RGBA, width, height, GL_UNSIGNED_BYTE, trans,
|
|
scaled_width, scaled_height, GL_UNSIGNED_BYTE, scaled);
|
|
glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height, 0, GL_RGBA, GL_UNSIGNED_BYTE, scaled);
|
|
}
|
|
#else
|
|
texels += scaled_width * scaled_height;
|
|
|
|
if (scaled_width == width && scaled_height == height)
|
|
{
|
|
if (!mipmap)
|
|
{
|
|
glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width,
|
|
scaled_height, 0,
|
|
#ifdef WORDS_BIGENDIAN
|
|
GL_ABGR_EXT,
|
|
#else
|
|
GL_RGBA,
|
|
#endif
|
|
GL_UNSIGNED_BYTE, data);
|
|
goto done;
|
|
}
|
|
memcpy (scaled, data, width*height*4);
|
|
}
|
|
else
|
|
GL_ResampleTexture (data, width, height, scaled, scaled_width, scaled_height);
|
|
|
|
glTexImage2D (GL_TEXTURE_2D, 0, samples, scaled_width, scaled_height,
|
|
0,
|
|
#ifdef WORDS_BIGENDIAN
|
|
GL_ABGR_EXT,
|
|
#else
|
|
GL_RGBA,
|
|
#endif
|
|
GL_UNSIGNED_BYTE, scaled);
|
|
if (mipmap)
|
|
{
|
|
int miplevel;
|
|
|
|
miplevel = 0;
|
|
while (scaled_width > 1 || scaled_height > 1)
|
|
{
|
|
GL_MipMap ((byte *)scaled, scaled_width, scaled_height);
|
|
scaled_width >>= 1;
|
|
scaled_height >>= 1;
|
|
if (scaled_width < 1)
|
|
scaled_width = 1;
|
|
if (scaled_height < 1)
|
|
scaled_height = 1;
|
|
miplevel++;
|
|
glTexImage2D (GL_TEXTURE_2D, miplevel, samples,
|
|
scaled_width, scaled_height, 0,
|
|
#ifdef WORDS_BIGENDIAN
|
|
GL_ABGR_EXT,
|
|
#else
|
|
GL_RGBA,
|
|
#endif
|
|
GL_UNSIGNED_BYTE, scaled);
|
|
}
|
|
}
|
|
done: ;
|
|
#endif
|
|
|
|
|
|
if (mipmap)
|
|
{
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
}
|
|
else
|
|
{
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
}
|
|
}
|
|
|
|
void GL_Upload8_EXT (byte *data, int width, int height, qboolean mipmap, qboolean alpha)
|
|
{
|
|
int i, s;
|
|
qboolean noalpha;
|
|
int samples;
|
|
static unsigned char scaled[1024*512]; // [512*256];
|
|
int scaled_width, scaled_height;
|
|
|
|
s = width*height;
|
|
// if there are no transparent pixels, make it a 3 component
|
|
// texture even if it was specified as otherwise
|
|
if (alpha)
|
|
{
|
|
noalpha = true;
|
|
for (i=0 ; i<s ; i++)
|
|
{
|
|
if (data[i] == 255)
|
|
noalpha = false;
|
|
}
|
|
|
|
if (alpha && noalpha)
|
|
alpha = false;
|
|
}
|
|
for (scaled_width = 1 ; scaled_width < width ; scaled_width<<=1)
|
|
;
|
|
for (scaled_height = 1 ; scaled_height < height ; scaled_height<<=1)
|
|
;
|
|
|
|
scaled_width >>= (int)gl_picmip->value;
|
|
scaled_height >>= (int)gl_picmip->value;
|
|
|
|
if (scaled_width > gl_max_size->value)
|
|
scaled_width = gl_max_size->value;
|
|
if (scaled_height > gl_max_size->value)
|
|
scaled_height = gl_max_size->value;
|
|
|
|
if (scaled_width * scaled_height > sizeof(scaled))
|
|
Sys_Error ("GL_LoadTexture: too big");
|
|
|
|
samples = 1; // alpha ? gl_alpha_format : gl_solid_format;
|
|
|
|
texels += scaled_width * scaled_height;
|
|
|
|
if (scaled_width == width && scaled_height == height)
|
|
{
|
|
if (!mipmap)
|
|
{
|
|
/* FIXME - what if this extension isn't available? */
|
|
#ifdef HAVE_GL_COLOR_INDEX8_EXT
|
|
glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX , GL_UNSIGNED_BYTE, data);
|
|
#else
|
|
/* FIXME - should warn that this isn't available */
|
|
#endif
|
|
goto done;
|
|
}
|
|
memcpy (scaled, data, width*height);
|
|
}
|
|
else
|
|
GL_Resample8BitTexture (data, width, height, scaled, scaled_width, scaled_height);
|
|
|
|
// FIXME - what if this extension isn't available?
|
|
#ifdef HAVE_GL_COLOR_INDEX8_EXT
|
|
glTexImage2D (GL_TEXTURE_2D, 0, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, scaled);
|
|
#else
|
|
/* FIXME - should warn that this isn't available */
|
|
#endif
|
|
if (mipmap)
|
|
{
|
|
int miplevel;
|
|
|
|
miplevel = 0;
|
|
while (scaled_width > 1 || scaled_height > 1)
|
|
{
|
|
GL_MipMap8Bit ((byte *)scaled, scaled_width, scaled_height);
|
|
scaled_width >>= 1;
|
|
scaled_height >>= 1;
|
|
if (scaled_width < 1)
|
|
scaled_width = 1;
|
|
if (scaled_height < 1)
|
|
scaled_height = 1;
|
|
miplevel++;
|
|
/* FIXME - what if this extension isn't available? */
|
|
#ifdef HAVE_GL_COLOR_INDEX8_EXT
|
|
glTexImage2D (GL_TEXTURE_2D, miplevel, GL_COLOR_INDEX8_EXT, scaled_width, scaled_height, 0, GL_COLOR_INDEX, GL_UNSIGNED_BYTE, scaled);
|
|
#else
|
|
/* FIXME - should warn that this isn't available */
|
|
#endif
|
|
}
|
|
}
|
|
done: ;
|
|
|
|
if (mipmap)
|
|
{
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_min);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
}
|
|
else
|
|
{
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, gl_filter_max);
|
|
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, gl_filter_max);
|
|
}
|
|
}
|
|
|
|
extern qboolean VID_Is8bit();
|
|
|
|
/*
|
|
===============
|
|
GL_Upload8
|
|
===============
|
|
*/
|
|
void GL_Upload8 (byte *data, int width, int height, qboolean mipmap, qboolean alpha)
|
|
{
|
|
static unsigned trans[640*480]; // FIXME, temporary
|
|
int i, s;
|
|
qboolean noalpha;
|
|
int p;
|
|
|
|
s = width*height;
|
|
// if there are no transparent pixels, make it a 3 component
|
|
// texture even if it was specified as otherwise
|
|
if (alpha)
|
|
{
|
|
noalpha = true;
|
|
for (i=0 ; i<s ; i++)
|
|
{
|
|
p = data[i];
|
|
if (p == 255)
|
|
noalpha = false;
|
|
trans[i] = d_8to24table[p];
|
|
}
|
|
|
|
if (alpha && noalpha)
|
|
alpha = false;
|
|
}
|
|
else
|
|
{
|
|
if (s&3)
|
|
Sys_Error ("GL_Upload8: s&3");
|
|
for (i=0 ; i<s ; i+=4)
|
|
{
|
|
trans[i] = d_8to24table[data[i]];
|
|
trans[i+1] = d_8to24table[data[i+1]];
|
|
trans[i+2] = d_8to24table[data[i+2]];
|
|
trans[i+3] = d_8to24table[data[i+3]];
|
|
}
|
|
}
|
|
|
|
if (VID_Is8bit() && !alpha && (data!=scrap_texels[0])) {
|
|
GL_Upload8_EXT (data, width, height, mipmap, alpha);
|
|
return;
|
|
}
|
|
|
|
GL_Upload32 (trans, width, height, mipmap, alpha);
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_LoadTexture
|
|
================
|
|
*/
|
|
int GL_LoadTexture (char *identifier, int width, int height, byte *data, qboolean mipmap, qboolean alpha)
|
|
{
|
|
int i;
|
|
gltexture_t *glt;
|
|
|
|
// see if the texture is allready present
|
|
if (identifier[0])
|
|
{
|
|
for (i=0, glt=gltextures ; i<numgltextures ; i++, glt++)
|
|
{
|
|
if (!strcmp (identifier, glt->identifier))
|
|
{
|
|
if (width != glt->width
|
|
|| height != glt->height)
|
|
{
|
|
glt->width = width;
|
|
glt->height = height;
|
|
glt->mipmap = mipmap;
|
|
|
|
GL_Bind (glt->texnum);
|
|
|
|
GL_Upload8 (data, width, height,
|
|
mipmap, alpha);
|
|
}
|
|
return gltextures[i].texnum;
|
|
}
|
|
}
|
|
}
|
|
else
|
|
glt = &gltextures[numgltextures];
|
|
numgltextures++;
|
|
|
|
strcpy (glt->identifier, identifier);
|
|
glt->texnum = texture_extension_number;
|
|
glt->width = width;
|
|
glt->height = height;
|
|
glt->mipmap = mipmap;
|
|
|
|
GL_Bind(texture_extension_number );
|
|
|
|
GL_Upload8 (data, width, height, mipmap, alpha);
|
|
|
|
texture_extension_number++;
|
|
|
|
return texture_extension_number-1;
|
|
}
|
|
|
|
/*
|
|
================
|
|
GL_LoadPicTexture
|
|
================
|
|
*/
|
|
int GL_LoadPicTexture (qpic_t *pic)
|
|
{
|
|
return GL_LoadTexture ("", pic->width, pic->height, pic->data, false, true);
|
|
}
|
|
|
|
/****************************************/
|
|
|
|
static GLenum oldtarget = TEXTURE0_SGIS;
|
|
|
|
void GL_SelectTexture (GLenum target)
|
|
{
|
|
if (!gl_mtexable)
|
|
return;
|
|
qglSelectTextureSGIS(target);
|
|
if (target == oldtarget)
|
|
return;
|
|
cnttextures[oldtarget-TEXTURE0_SGIS] = currenttexture;
|
|
currenttexture = cnttextures[target-TEXTURE0_SGIS];
|
|
oldtarget = target;
|
|
}
|