eddys_snippets/GLUT_window/image_functions.h

48 lines
1.3 KiB
C

/*
* This file is part of the opengl project.
* Copyright 2020 Edward V. Emelianov <edward.emelianoff@gmail.com>.
*
* 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 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#ifndef IMAGE_FUNCTIONS__
#define IMAGE_FUNCTIONS__
#include <GL/glut.h>
#include "imageview.h"
// functions for converting grayscale value into colour
typedef enum{
COLORFN_LINEAR, // linear
COLORFN_LOG, // ln
COLORFN_SQRT, // sqrt
COLORFN_MAX // end of list
} colorfn_type;
typedef struct{
uint16_t *data;
int w;
int h;
} IMG;
void change_displayed_image(windowData *win, IMG *convertedImage);
void gray2rgb(double gray, GLubyte *rgb);
colorfn_type get_colorfun();
void change_colorfun(colorfn_type f);
void roll_colorfun();
#endif // IMAGE_FUNCTIONS__