mirror of
https://git.code.sf.net/p/quake/quakeforge
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113 lines
2.5 KiB
C
113 lines
2.5 KiB
C
/*
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gl_dyn_textures.c
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Dynamic texture generation.
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Copyright (C) 1996-1997 Id Software, Inc.
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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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*/
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#ifdef HAVE_CONFIG_H
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# include "config.h"
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#endif
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#define NH_DEFINE
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#include "namehack.h"
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#ifdef HAVE_STRING_H
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# include <string.h>
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#endif
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#ifdef HAVE_STRINGS_H
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# include <strings.h>
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#endif
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#include <stdlib.h>
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#include "QF/image.h"
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#include "QF/qtypes.h"
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#include "QF/GL/defines.h"
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#include "QF/GL/funcs.h"
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#include "QF/GL/qf_textures.h"
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#include "QF/GL/qf_vid.h"
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#include "r_internal.h"
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int gl_part_tex;
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static GLint part_tex_internal_format = 2;
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static void
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GDT_InitParticleTexture (void)
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{
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byte data[64][64][2];
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memset (data, 0, sizeof (data));
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gl_part_tex = gl_texture_number++;
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qfglBindTexture (GL_TEXTURE_2D, gl_part_tex);
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qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
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qfglTexParameterf (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
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qfglTexImage2D (GL_TEXTURE_2D, 0, part_tex_internal_format, 64, 64, 0, GL_LUMINANCE_ALPHA,
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GL_UNSIGNED_BYTE, data);
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}
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static void
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GDT_InitDotParticleTexture (void)
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{
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tex_t *tex;
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tex = R_DotParticleTexture ();
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qfglTexSubImage2D (GL_TEXTURE_2D, 0, 0, 0, 32, 32, GL_LUMINANCE_ALPHA,
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GL_UNSIGNED_BYTE, tex->data);
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free (tex);
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}
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static void
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GDT_InitSparkParticleTexture (void)
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{
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tex_t *tex;
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tex = R_SparkParticleTexture ();
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qfglTexSubImage2D (GL_TEXTURE_2D, 0, 32, 0, 32, 32, GL_LUMINANCE_ALPHA,
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GL_UNSIGNED_BYTE, tex->data);
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free (tex);
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}
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static void
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GDT_InitSmokeParticleTexture (void)
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{
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tex_t *tex;
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tex = R_SmokeParticleTexture ();
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qfglTexSubImage2D (GL_TEXTURE_2D, 0, 0, 32, 32, 32, GL_LUMINANCE_ALPHA,
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GL_UNSIGNED_BYTE, tex->data);
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free (tex);
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}
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void
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GDT_Init (void)
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{
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if (gl_feature_mach64)
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part_tex_internal_format = 4;
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GDT_InitParticleTexture ();
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GDT_InitDotParticleTexture ();
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GDT_InitSparkParticleTexture ();
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GDT_InitSmokeParticleTexture ();
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}
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