gseisviewshaders.c

segy 显示程序！希望能给正在做这部分朋友提供一部分资料

/* 
 * GTKSEISVIEWGL - Library for rendering of 2D seismic data
 *
 * Copyright (C) 2006 Vladimir Bashkardin
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2 of the
 * License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more av.
 *
 * You should have received a copy of the GNU General Public
 * License along with this program; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 *
 * Author:  Vladimir Bashkardin  <[e-mail]>
 */

#include "gseisviewshaders.h"

static const char *g_seis_view_texture_palette_fragment_shader_source = " \n\
uniform sampler2D seis_tex; \n\
uniform sampler1D palette_tex; \n\
\n\
void main (void) \n\
{ \n\
    vec4 color_index = texture2D(seis_tex, gl_TexCoord[0].xy); \n\
    gl_FragColor = texture1D(palette_tex, color_index.r); \n\
} \n\
";

const char** g_seis_view_get_texture_palette_fragment_shader_source (void) {
    return &g_seis_view_texture_palette_fragment_shader_source;
}