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https://git.code.sf.net/p/quake/quakeforge-old
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1532 lines
33 KiB
C
1532 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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cvar_t *gl_crosshairalpha;
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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
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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
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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
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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 *
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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 *
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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); // endian fixup
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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
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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
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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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gl_crosshairalpha = Cvar_Get ("gl_crosshairalpha", "1.0",
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CVAR_ARCHIVE, "Crosshair Alpha");
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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); // 1999-12-27 Conwidth/height charset fix by TcT
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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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char_texture = GL_LoadTexture ("charset", 128, 128, draw_chars, false, true); // 1999-12-27 Conwidth/height charset fix by TcT
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// For some reason which I cannot claim to fathom, it seems to be
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// 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.
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// - knghtbrd (2 Jan 2000)
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// texture alignment maybe??
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// - taniwha (2 May 2000)
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glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
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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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// get the other pics we need
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//
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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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/*
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================
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Draw_Character
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Draws one 8*8 graphics character with 0 being transparent.
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It can be clipped to the top of the screen to allow the console to be
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smoothly scrolled off.
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================
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*/
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void
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Draw_Character ( int x, int y, int num )
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{
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int row, col;
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float frow, fcol, size;
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if (num == 32)
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return; // space
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num &= 255;
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if (y <= -8)
|
|
return; // totally off screen
|
|
|
|
row = num>>4;
|
|
col = num&15;
|
|
|
|
frow = row*0.0625;
|
|
fcol = col*0.0625;
|
|
size = 0.0625;
|
|
|
|
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 uColor;
|
|
|
|
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;
|
|
|
|
glDisable(GL_ALPHA_TEST);
|
|
glEnable (GL_BLEND);
|
|
|
|
glTexEnvf ( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
|
|
|
|
uColor = d_8to24table[(byte) crosshaircolor->value] & 0x00ffffff;
|
|
uColor |= ((unsigned)(gl_crosshairalpha->value*255.0) & 0xff) << 24;
|
|
glColor4ubv((unsigned char *)&uColor);
|
|
|
|
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 );
|
|
|
|
glEnable(GL_ALPHA_TEST);
|
|
glDisable (GL_BLEND);
|
|
} 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;
|
|
|
|
glDisable(GL_ALPHA_TEST);
|
|
glEnable (GL_BLEND);
|
|
|
|
glTexEnvf ( GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_MODULATE );
|
|
|
|
uColor = d_8to24table[(byte) crosshaircolor->value] & 0x00ffffff;
|
|
uColor |= ((unsigned)(gl_crosshairalpha->value*255.0) & 0xff) << 24;
|
|
glColor4ubv((unsigned char *)&uColor);
|
|
|
|
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 );
|
|
|
|
glEnable(GL_ALPHA_TEST);
|
|
glDisable (GL_BLEND);
|
|
} 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 || gl_conalpha->value >= 1.0)
|
|
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;
|
|
|
|
scaled_width = max (1, min (scaled_width, gl_max_size->value));
|
|
scaled_height = max (1, min (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 already 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;
|
|
}
|