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Public License instead of this License. But first, please read
<https://www.gnu.org/licenses/why-not-lgpl.html>.

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# run `make DEF=...` to add extra defines
PROGRAM := opengl
LDFLAGS := -fdata-sections -ffunction-sections -Wl,--gc-sections -Wl,--discard-all
LDFLAGS += -lusefull_macros -lflycapture-c -lflycapture -L/usr/local/lib
LDFLAGS += -lm -pthread -lglut -lGL -lX11 -lGLEW
SRCS := $(wildcard *.c)
DEFINES := $(DEF) -D_GNU_SOURCE -D_XOPEN_SOURCE=1111
OBJDIR := mk
CFLAGS += -O2 -Wno-trampolines -std=gnu99
CFLAGS += -I/usr/local/include/flycapture
OBJS := $(addprefix $(OBJDIR)/, $(SRCS:%.c=%.o))
DEPS := $(OBJS:.o=.d)
CC = gcc
#CXX = g++
all : $(OBJDIR) $(PROGRAM)
debug: CFLAGS += -DEBUG -Werror -Wall -Wextra
debug: all
$(PROGRAM) : $(OBJS)
@echo -e "\t\tLD $(PROGRAM)"
$(CC) $(LDFLAGS) $(OBJS) -o $(PROGRAM)
$(OBJDIR):
mkdir $(OBJDIR)
ifneq ($(MAKECMDGOALS),clean)
-include $(DEPS)
endif
$(OBJDIR)/%.o: %.c
@echo -e "\t\tCC $<"
$(CC) -MD -c $(LDFLAGS) $(CFLAGS) $(DEFINES) -o $@ $<
clean:
@echo -e "\t\tCLEAN"
@rm -f $(OBJS) $(DEPS)
@rmdir $(OBJDIR) 2>/dev/null || true
xclean: clean
@rm -f $(PROGRAM)
.PHONY: clean xclean

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imagewiew with GLUT

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Simplest tool for Grasshopper3 control
======================================
(pre-pre-alpha version)

58
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/*
* 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/>.
*/
#include <linux/limits.h> // PATH_MAX
#include <stdio.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include "aux.h"
#include "cmdlnopts.h"
// print messages for given verbose_level
int verbose(verblevel levl, const char *fmt, ...){
if((unsigned)verbose_level < levl) return 0;
va_list ar; int i;
va_start(ar, fmt);
i = vprintf(fmt, ar);
va_end(ar);
printf("\n");
fflush(stdout);
return i;
}
/**
* @brief check_filename - find file name "outfile_xxxx.suff" NOT THREAD-SAFE!
* @param outfile - file name prefix
* @param suff - file name suffix
* @return NULL or next free file name like "outfile_0010.suff" (don't free() it!)
*/
char *check_filename(char *outfile, char *suff){
static char buff[PATH_MAX];
struct stat filestat;
int num;
for(num = 1; num < 10000; num++){
if(snprintf(buff, PATH_MAX, "%s_%04d.%s", outfile, num, suff) < 1)
return NULL;
if(stat(buff, &filestat)) // OK, file not exists
return buff;
}
return NULL;
}

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/*
* 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 AUX_H__
#define AUX_H__
typedef enum{
VERB_NONE,
VERB_MESG,
VERB_DEBUG
} verblevel;
int verbose(verblevel levl, const char *fmt, ...);
char *check_filename(char *outfile, char *suff);
#define VMESG(...) do{verbose(VERB_MESG, __VA_ARGS__);}while(0)
#define VDBG(...) do{verbose(VERB_DEBUG, __VA_ARGS__);}while(0)
#endif // AUX_H__

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/*
* 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/>.
*/
#include <assert.h>
#include <math.h>
#include <stdio.h>
#include <string.h>
#include <strings.h>
#include <usefull_macros.h>
#include "cmdlnopts.h"
static int help;
/*
* here are global parameters initialisation
*/
int verbose_level;
glob_pars G;
// default PID filename:
#define DEFAULT_PIDFILE "/tmp/opengl.pid"
// DEFAULTS
// default global parameters
static glob_pars const Gdefault = {
.device = NULL,
.pidfile = DEFAULT_PIDFILE,
.exptime = NAN,
.gain = NAN
};
/*
* Define command line options by filling structure:
* name has_arg flag val type argptr help
*/
static myoption cmdlnopts[] = {
// common options
{"help", NO_ARGS, NULL, 'h', arg_int, APTR(&help), _("show this help")},
{"device", NEED_ARG, NULL, 'd', arg_string, APTR(&G.device), _("camera device name")},
{"pidfile", NEED_ARG, NULL, 'P', arg_string, APTR(&G.pidfile), _("pidfile (default: " DEFAULT_PIDFILE ")")},
{"verbose", NO_ARGS, NULL, 'v', arg_none, APTR(&verbose_level), _("verbose level (each 'v' increases it)")},
{"camno", NEED_ARG, NULL, 'n', arg_int, APTR(&G.camno), _("camera number (if many connected)")},
{"exptime", NEED_ARG, NULL, 'x', arg_float, APTR(&G.exptime), _("exposure time (ms)")},
{"gain", NEED_ARG, NULL, 'g', arg_float, APTR(&G.gain), _("gain value (dB)")},
{"display", NO_ARGS, NULL, 'D', arg_int, APTR(&G.showimage), _("display captured image")},
{"nimages", NEED_ARG, NULL, 'N', arg_int, APTR(&G.nimages), _("number of images to capture")},
{"png", NO_ARGS, NULL, 'p', arg_int, APTR(&G.save_png), _("save png too")},
end_option
};
/**
* Parse command line options and return dynamically allocated structure
* to global parameters
* @param argc - copy of argc from main
* @param argv - copy of argv from main
* @return allocated structure with global parameters
*/
glob_pars *parse_args(int argc, char **argv){
int i;
void *ptr;
ptr = memcpy(&G, &Gdefault, sizeof(G)); assert(ptr);
size_t hlen = 1024;
char helpstring[1024], *hptr = helpstring;
snprintf(hptr, hlen, "Usage: %%s [args] [filename prefix]\n\n\tWhere args are:\n");
// format of help: "Usage: progname [args]\n"
change_helpstring(helpstring);
// parse arguments
parseargs(&argc, &argv, cmdlnopts);
if(help) showhelp(-1, cmdlnopts);
if(argc > 0){
G.rest_pars_num = argc;
G.rest_pars = MALLOC(char *, argc);
for (i = 0; i < argc; i++){
DBG("Found free parameter %s", argv[i]);
G.rest_pars[i] = strdup(argv[i]);
}
}
return &G;
}

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/*
* 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 CMDLNOPTS_H__
#define CMDLNOPTS_H__
/*
* here are some typedef's for global data
*/
typedef struct{
char *device; // camera device name
char *pidfile; // name of PID file
int camno; // number of camera to work with
float exptime; // exposition time
float gain; // gain value
int showimage; // display last captured image in OpenGL screen
int nimages; // number of images to capture
int save_png; // save png file
int rest_pars_num; // number of rest parameters
char** rest_pars; // the rest parameters: array of char*
} glob_pars;
glob_pars *parse_args(int argc, char **argv);
extern glob_pars G;
extern int verbose_level;
#endif // CMDLNOPTS_H__

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/*
* events.c
*
* Copyright 2015 Edward V. Emelianov <eddy@sao.ru, 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 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 details.
*
* 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
//#include <GL/glew.h>
#include <GL/glut.h>
#include <GL/glext.h>
#include <GL/freeglut.h>
#include <usefull_macros.h>
#include "events.h"
#include "imageview.h"
/**
* manage pressed keys & menu items
*/
static void processKeybrd(unsigned char key, int mod, _U_ int x, _U_ int y){
windowData *win = getWin();
if(!win) return;
DBG("key=%d (%c), mod=%d", key, key, mod);
if(mod == GLUT_ACTIVE_CTRL){ // 'a' == 1, 'b' == 2...
key += 'a'-1;
DBG("CTRL+%c", key);
switch(key){
case 'r': // roll colorfun
win->winevt |= WINEVT_ROLLCOLORFUN;
break;
case 's': // save image
win->winevt |= WINEVT_SAVEIMAGE;
break;
case 'q': // exit case 17:
//signals(1);
win->killthread = 1;
break;
}
}else if(mod == GLUT_ACTIVE_ALT){
; // ALT
}else switch(key){
case '0': // return zoom to 1 & image to 0
win->zoom = 1;
win->x = 0; win->y = 0;
break;
case 27: // esc - kill
win->killthread = 1;
break;
case 'c': // capture in pause mode
DBG("winevt = %d", win->winevt);
if(win->winevt & WINEVT_PAUSE)
win->winevt |= WINEVT_GETIMAGE;
break;
case 'l': // flip left-right
win->flip ^= WIN_FLIP_LR;
break;
case 'p': // pause capturing
win->winevt ^= WINEVT_PAUSE;
break;
case 'u': // flip up-down
win->flip ^= WIN_FLIP_UD;
break;
case 'Z': // zoom+
win->zoom *= 1.1f;
calc_win_props(NULL, NULL);
break;
case 'z': // zoom-
win->zoom /= 1.1f;
calc_win_props(NULL, NULL);
break;
}
}
/*
* Process keyboard
*/
void keyPressed(unsigned char key, int x, int y){
int mod = glutGetModifiers();
//mod: GLUT_ACTIVE_SHIFT, GLUT_ACTIVE_CTRL, GLUT_ACTIVE_ALT; result is their sum
DBG("Key pressed. mod=%d, keycode=%d (%c), point=(%d,%d)\n", mod, key, key, x,y);
processKeybrd(key, mod, x, y);
}
/*
void keySpPressed(_U_ int key, _U_ int x, _U_ int y){
// int mod = glutGetModifiers();
DBG("Sp. key pressed. mod=%d, keycode=%d, point=(%d,%d)\n", glutGetModifiers(), key, x,y);
}*/
static int oldx, oldy; // coordinates when mouse was pressed
static int movingwin = 0; // ==1 when user moves image by middle button
void mousePressed(int key, int state, int x, int y){
// key: GLUT_LEFT_BUTTON, GLUT_MIDDLE_BUTTON, GLUT_RIGHT_BUTTON
// state: GLUT_UP, GLUT_DOWN
int mod = glutGetModifiers();
windowData *win = getWin();
if(!win) return;
if(state == GLUT_DOWN){
oldx = x; oldy = y;
float X,Y, Zoom = win->zoom;
conv_mouse_to_image_coords(x,y,&X,&Y,win);
DBG("press in (%d, %d) == (%f, %f) on image; mod == %d", x,y,X,Y, mod);
if(key == GLUT_LEFT_BUTTON){
DBG("win->x=%g, win->y=%g", win->x, win->y);
win->x += Zoom * (win->w/2.f - (float)x);
win->y -= Zoom * (win->h/2.f - (float)y);
}else if(key == GLUT_MIDDLE_BUTTON) movingwin = 1;
else if(key == 3){ // wheel UP
if(mod == 0) win->y += 10.f*win->zoom; // nothing pressed - scroll up
else if(mod == GLUT_ACTIVE_SHIFT) win->x -= 10.f*Zoom; // shift pressed - scroll left
else if(mod == GLUT_ACTIVE_CTRL) win->zoom *= 1.1f; // ctrl+wheel up == zoom+
}else if(key == 4){ // wheel DOWN
if(mod == 0) win->y -= 10.f*win->zoom; // nothing pressed - scroll down
else if(mod == GLUT_ACTIVE_SHIFT) win->x += 10.f*Zoom; // shift pressed - scroll right
else if(mod == GLUT_ACTIVE_CTRL) win->zoom /= 1.1f; // ctrl+wheel down == zoom-
}
calc_win_props(NULL, NULL);
}else{
movingwin = 0;
}
}
void mouseMove(int x, int y){
windowData *win = getWin();
if(!win) return;
if(movingwin){
float X, Y, nx, ny, w2, h2;
float a = win->Daspect;
X = (x - oldx) * a; Y = (y - oldy) * a;
nx = win->x + X;
ny = win->y - Y;
w2 = win->image->w / 2.f * win->zoom;
h2 = win->image->h / 2.f * win->zoom;
if(nx < w2 && nx > -w2)
win->x = nx;
if(ny < h2 && ny > -h2)
win->y = ny;
oldx = x;
oldy = y;
calc_win_props(NULL, NULL);
}
}
void menuEvents(int opt){
DBG("opt: %d, key: %d (%c), mod: %d", opt, opt&0xff, opt&0xff, opt>>8);
// just work as shortcut pressed
processKeybrd((unsigned char)(opt&0xff), opt>>8, 0, 0);
} // GLUT_ACTIVE_CTRL
typedef struct{
char *name; // menu entry name
int symbol; // shortcut symbol + rolled modifier
} menuentry;
#define CTRL_K(key) ((key-'a'+1) | (GLUT_ACTIVE_CTRL<<8))
#define SHIFT_K(key) (key | (GLUT_ACTIVE_SHIFT<<8))
#define ALT_K(key) (key | (GLUT_ACTIVE_ALT<<8))
static const menuentry entries[] = {
{"Capture in pause mode (c)", 'c'},
{"Flip image LR (l)", 'l'},
{"Flip image UD (u)", 'u'},
{"Make a pause/continue (p)", 'p'},
{"Restore zoom (0)", '0'},
{"Roll colorfun (ctrl+r)", CTRL_K('r')},
{"Save image (ctrl+s)", CTRL_K('s')},
{"Close this window (ESC)", 27},
{"Quit (ctrl+q)", CTRL_K('q')},
{NULL, 0}
};
#undef CTRL_K
#undef SHIFT_K
#undef ALT_K
void createMenu(){
FNAME();
windowData *win = getWin();
if(!win) return;
DBG("menu for win ID %d", win->ID);
//glutSetWindow(win->ID);
if(win->menu) glutDestroyMenu(win->menu);
win->menu = glutCreateMenu(menuEvents);
const menuentry *ptr = entries;
while(ptr->name){
glutAddMenuEntry(ptr->name, ptr->symbol);
++ptr;
}
DBG("created menu %d\n", win->menu);
glutAttachMenu(GLUT_RIGHT_BUTTON);
}

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/*
* events.h
*
* Copyright 2015 Edward V. Emelianov <eddy@sao.ru, 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 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 details.
*
* 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#pragma once
#ifndef __EVENTS_H__
#define __EVENTS_H__
#include <stdlib.h>
#include <stdio.h>
extern float Z; // ËÏÏÒÄÉÎÁÔÁ Z (zoom)
void keyPressed(unsigned char key, int x, int y);
//void keySpPressed(int key, int x, int y);
void mousePressed(int key, int state, int x, int y);
void mouseMove(int x, int y);
void createMenu();
void menuEvents(int opt);
//void mouseWheel(int button, int dir, int x, int y);
#endif // __EVENTS_H__

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/*
* 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/>.
*/
#include <fitsio.h>
#include <pthread.h>
#include <stdio.h>
#include <usefull_macros.h>
#include "cmdlnopts.h"
#include "image_functions.h"
/**
* Convert gray (unsigned short) into RGB components (GLubyte)
* @argument L - gray level (0..1)
* @argument rgb - rgb array (GLubyte [3])
*/
void gray2rgb(double gray, GLubyte *rgb){
int i = gray * 4.;
double x = (gray - (double)i * .25) * 4.;
GLubyte r = 0, g = 0, b = 0;
//r = g = b = (gray < 1) ? gray * 256 : 255;
switch(i){
case 0:
g = (GLubyte)(255. * x);
b = 255;
break;
case 1:
g = 255;
b = (GLubyte)(255. * (1. - x));
break;
case 2:
r = (GLubyte)(255. * x);
g = 255;
break;
case 3:
r = 255;
g = (GLubyte)(255. * (1. - x));
break;
default:
r = 255;
}
*rgb++ = r;
*rgb++ = g;
*rgb = b;
}
static colorfn_type ft = COLORFN_LINEAR;
// all colorfun's should get argument in [0, 1] and return in [0, 1]
static double linfun(double arg){ return arg; } // bung for PREVIEW_LINEAR
static double logfun(double arg){ return log(1.+arg) / 0.6931472; } // for PREVIEW_LOG [log_2(x+1)]
static double (*colorfun)(double) = linfun; // default function to convert color
colorfn_type get_colorfun(){return ft;}
void change_colorfun(colorfn_type f){
DBG("New colorfn: %d", f);
switch (f){
case COLORFN_LOG:
colorfun = logfun;
ft = COLORFN_LOG;
break;
case COLORFN_SQRT:
colorfun = sqrt;
ft = COLORFN_SQRT;
break;
default: // linear
colorfun = linfun;
ft = COLORFN_LINEAR;
}
}
// cycle switch between palettes
void roll_colorfun(){
FNAME();
colorfn_type t = ++ft;
if(t == COLORFN_MAX) t = COLORFN_LINEAR;
change_colorfun(t);
}
/**
* @brief equalize - hystogram equalization
* @param ori (io) - input/output data
* @param w,h - image width and height
* @return data allocated here
*/
static uint8_t *equalize(uint16_t *ori, int w, int h){
uint8_t *retn = MALLOC(uint8_t, w*h);
double orig_hysto[65536] = {0.}; // original hystogram
uint8_t eq_levls[65536] = {0}; // levels to convert: newpix = eq_levls[oldpix]
int s = w*h;
for(int i = 0; i < s; ++i) ++orig_hysto[ori[i]];
double part = (double)(s + 1)/ 256., N = 0.;
for(int i = 0; i < 65536; ++i){
N += orig_hysto[i];
eq_levls[i] = (uint8_t)(N/part);
//printf("N=%g, orig_hysto=%g, eq_levls[%d]=%d\n", N, orig_hysto[i], i, eq_levls[i]);
}
//exit(1);
for(int i = 0; i < s; ++i){
retn[i] = eq_levls[ori[i]];
}
return retn;
}
void change_displayed_image(windowData *win, IMG *img){
if(!win || !win->image) return;
rawimage *im = win->image;
//DBG("imh=%d, imw=%d, ch=%u, cw=%u", im->h, im->w, img->w, img->h);
pthread_mutex_lock(&win->mutex);
int w = img->w, h = img->h, s = w*h;
uint8_t *newima = equalize(img->data, w, h);
GLubyte *dst = im->rawdata;
for(int i = 0; i < s; ++i, dst += 3){
gray2rgb(colorfun(newima[i] / 256.), dst);
}
FREE(newima);
win->image->changed = 1;
pthread_mutex_unlock(&win->mutex);
}

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/*
* 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__

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// bmpview.c
//
// Copyright 2010 Edward V. Emelianoff <eddy@sao.ru>
//
// 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 details.
//
// 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., 51 Franklin Street, Fifth Floor, Boston,
// MA 02110-1301, USA.
//-lglut
#include <X11/Xlib.h> // XInitThreads();
//#include <GL/glew.h>
#include <GL/glut.h>
#include <GL/glext.h>
#include <GL/freeglut.h>
#include <math.h> // roundf(), log(), sqrt()
#include <pthread.h>
#include <usefull_macros.h>
#include "imageview.h"
static windowData *win = NULL; // main window
static pthread_t GLUTthread; // main GLUT thread
static int initialized = 0; // ==1 if GLUT is initialized; ==0 after clear_GL_context
static void createWindow();
static void RedrawWindow();
static void *Redraw(_U_ void *arg);
static void Resize(int width, int height);
/**
* calculate window properties on creating & resizing
*/
void calc_win_props(GLfloat *Wortho, GLfloat *Hortho){
if(!win || ! win->image) return;
float a, A, w, h, W, H;
float Zoom = win->zoom;
w = (float)win->image->w / 2.f;
h = (float)win->image->h / 2.f;
W = (float)win->w;
H =(float) win->h;
A = W / H;
a = w / h;
if(A > a){ // now W & H are parameters for glOrtho
win->Daspect = (float)h / H * 2.f;
W = h * A; H = h;
}else{
win->Daspect = (float)w / W * 2.f;
H = w / A; W = w;
}
if(Wortho) *Wortho = W;
if(Hortho) *Hortho = H;
// calculate coordinates of center
win->x0 = W/Zoom - w + win->x / Zoom;
win->y0 = H/Zoom + h - win->y / Zoom;
}
/**
* create window & run main loop
*/
static void createWindow(){
FNAME();
DBG("ini=%d, win %s", initialized, win ? "yes" : "no");
if(!initialized) return;
if(!win) return;
int w = win->w, h = win->h;
DBG("create window with title %s", win->title);
glutInitDisplayMode(GLUT_RGB | GLUT_DOUBLE | GLUT_DEPTH);
glutInitWindowSize(w, h);
win->ID = glutCreateWindow(win->title);
//glewInit();
DBG("created GL_ID=%d", win->ID);
glGenTextures(1, &(win->Tex));
calc_win_props(NULL, NULL);
win->zoom = 1. / win->Daspect;
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, win->Tex);
glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, win->image->w, win->image->h, 0,
GL_RGB, GL_UNSIGNED_BYTE, win->image->rawdata);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_BORDER);
glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_BORDER);
// glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
// glTexParameterf(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MAG_FILTER,GL_NEAREST);
glTexParameteri(GL_TEXTURE_2D,GL_TEXTURE_MIN_FILTER,GL_NEAREST);
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
//glTexImage2D(GL_TEXTURE_2D, 0, GL_RGB, w, h, 0, GL_RGB, GL_UNSIGNED_BYTE, NULL);
glDisable(GL_TEXTURE_2D);
createMenu();
DBG("Window opened");
glutReshapeFunc(Resize);
glutDisplayFunc(RedrawWindow);
glutKeyboardFunc(keyPressed);
//glutSpecialFunc(keySpPressed);
//glutMouseWheelFunc(mouseWheel);
glutMouseFunc(mousePressed);
glutMotionFunc(mouseMove);
//glutIdleFunc(glutPostRedisplay);
glutIdleFunc(RedrawWindow);
//pthread_create(&GLUTthread, NULL, &Redraw, NULL);
}
int killwindow(){
FNAME();
if(!win) return 0;
if(!win->killthread){
// say changed thread to die
win->killthread = 1;
}
pthread_mutex_lock(&win->mutex);
//glutSetWindow(win->ID); // obviously set window (for closing from menu)
DBG("wait for changed thread");
pthread_join(win->thread, NULL); // wait while thread dies
if(win->menu) glutDestroyMenu(win->menu);
glutDestroyWindow(win->ID);
DBG("destroy menu, wundow & texture %d", win->Tex);
glDeleteTextures(1, &(win->Tex));
//glFinish();
windowData *old = win;
win->ID = 0;
win = NULL;
DBG("free(rawdata)");
FREE(old->image->rawdata);
DBG("free(image)");
FREE(old->image);
pthread_mutex_unlock(&old->mutex);
DBG("free(win)");
FREE(old);
DBG("return");
return 1;
}
void renderBitmapString(float x, float y, void *font, char *string, GLubyte *color){
if(!initialized) return;
char *c;
int x1=x, W=0;
for(c = string; *c; c++){
W += glutBitmapWidth(font,*c);// + 1;
}
x1 -= W/2;
glColor3ubv(color);
glLoadIdentity();
glTranslatef(0.,0., -150);
//glTranslatef(x,y, -4000.);
for (c = string; *c != '\0'; c++){
glColor3ubv(color);
glRasterPos2f(x1,y);
glutBitmapCharacter(font, *c);
//glutStrokeCharacter(GLUT_STROKE_ROMAN, *c);
x1 = x1 + glutBitmapWidth(font,*c);// + 1;
}
}
static void RedrawWindow(){
if(!initialized || !win) return;
if(pthread_mutex_trylock(&win->mutex) != 0) return;
GLfloat w = win->image->w, h = win->image->h;
glClearColor(0.0, 0.0, 0.5, 1.0);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
glLoadIdentity();
glTranslatef(win->x, win->y, 0.);
glScalef(-win->zoom, -win->zoom, 1.);
glEnable(GL_TEXTURE_2D);
glBindTexture(GL_TEXTURE_2D, win->Tex);
if(win->image->changed){
DBG("Changed");
glTexEnvf(GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);
glTexSubImage2D(GL_TEXTURE_2D, 0, 0, 0, win->image->w, win->image->h,
GL_RGB, GL_UNSIGNED_BYTE, win->image->rawdata);
win->image->changed = 0;
}
w /= 2.f; h /= 2.f;
float lr = 1., ud = 1.; // flipping coefficients
if(win->flip & WIN_FLIP_LR) lr = -1.;
if(win->flip & WIN_FLIP_UD) ud = -1.;
glBegin(GL_QUADS);
glTexCoord2f(1.0f, 1.0f); glVertex2f( -1.f*lr*w, ud*h ); // top right
glTexCoord2f(1.0f, 0.0f); glVertex2f( -1.f*lr*w, -1.f*ud*h ); // bottom right
glTexCoord2f(0.0f, 0.0f); glVertex2f(lr*w, -1.f*ud*h ); // bottom left
glTexCoord2f(0.0f, 1.0f); glVertex2f(lr*w, ud*h ); // top left
glEnd();
glDisable(GL_TEXTURE_2D);
glFinish();
glutSwapBuffers();
pthread_mutex_unlock(&win->mutex);
usleep(10000);
}
/**
* main freeGLUT loop
* waits for global signals to create windows & make other actions
*/
static void *Redraw(_U_ void *arg){
FNAME();
createWindow();
glutMainLoop();
/* while(1){
if(!initialized){
DBG("!initialized -> exit thread");
return NULL;
}
if(!win || win->killthread){
DBG("Thread killed");
return NULL;
}
if(win && win->ID > 0){
//glutSetWindow(win->ID);
glutPostRedisplay();
//RedrawWindow();
glutMainLoopEvent();
usleep(10000);
}
}*/
return NULL;
}
static void Resize(int width, int height){
if(!initialized) return;
//int window = glutGetWindow();
if(!win/* || !window*/) return;
glutReshapeWindow(width, height);
win->w = width;
win->h = height;
glViewport(0, 0, width, height);
glMatrixMode(GL_PROJECTION);
glLoadIdentity();
GLfloat W, H;
calc_win_props(&W, &H);
glOrtho(-W,W, -H,H, -1., 1.);
glMatrixMode(GL_MODELVIEW);
glLoadIdentity();
}
/**
* create new window, run thread & return pointer to its structure or NULL
* asynchroneous call from outside
* wait for window creating & return its data
* @param title - header (copyed inside this function)
* @param w,h - image size
* @param rawdata - NULL (then the memory will be allocated here with size w x h)
* or allocated outside data
*/
windowData *createGLwin(char *title, int w, int h, rawimage *rawdata){
FNAME();
if(!initialized) return NULL;
if(win) killwindow();
win = MALLOC(windowData, 1);
rawimage *raw;
if(rawdata){
raw = rawdata;
}else{
raw = MALLOC(rawimage, 1);
if(raw){
raw->rawdata = MALLOC(GLubyte, w*h*3);
raw->w = w;
raw->h = h;
raw->changed = 1;
// raw->protected is zero automatically
}
}
if(!raw || !raw->rawdata){
free(raw);
return NULL;
}
win->title = strdup(title);
win->image = raw;
if(pthread_mutex_init(&win->mutex, NULL)){
WARN(_("Can't init mutex!"));
killwindow();
return NULL;
}
win->w = w;
win->h = h;
pthread_create(&GLUTthread, NULL, &Redraw, NULL);
return win;
}
/**
* Init freeGLUT
*/
void imageview_init(){
FNAME();
char *v[] = {"Sample window", NULL};
int c = 1;
static int glutnotinited = 1;
if(initialized){
WARNX(_("Already initialized!"));
return;
}
if(glutnotinited){
DBG("init");
// XInitThreads(); // we need it for threaded windows
glutInit(&c, v);
glutnotinited = 0;
}
glutSetOption(GLUT_ACTION_ON_WINDOW_CLOSE, GLUT_ACTION_CONTINUE_EXECUTION);
initialized = 1;
}
/**
* Close all opened windows and terminate main GLUT thread
*/
void clear_GL_context(){
FNAME();
if(!initialized) return;
initialized = 0;
glutLeaveMainLoop();
DBG("kill");
killwindow();
DBG("join");
pthread_join(GLUTthread, NULL); // wait while main thread exits
DBG("main GL thread cancelled");
}
/*
* Coordinates transformation from CS of drawingArea into CS of picture
* x,y - pointer coordinates
* X,Y - coordinates of appropriate point at picture
*/
void conv_mouse_to_image_coords(int x, int y,
float *X, float *Y,
windowData *window){
float a = window->Daspect / window->zoom;
*X = (float)x * a - window->x0;
*Y = window->y0 - (float)y * a;
}
void conv_image_to_mouse_coords(float X, float Y,
int *x, int *y,
windowData *window){
float a = window->zoom / window->Daspect;
*x = (int)roundf((X + window->x0) * a);
*y = (int)roundf((window->y0 - Y) * a);
}
windowData *getWin(){
return win;
}

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/*
* imageview.h
*
* Copyright 2015 Edward V. Emelianov <eddy@sao.ru, 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 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 details.
*
* 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., 51 Franklin Street, Fifth Floor, Boston,
* MA 02110-1301, USA.
*/
#pragma once
#ifndef __BMPVIEW_H__
#define __BMPVIEW_H__
#include <math.h>
#include <pthread.h>
#include <stdbool.h>
#include <string.h>
#include "events.h"
typedef struct{
GLubyte *rawdata; // raw image data
int w; // size of image
int h;
int changed; // == 1 if data was changed outside (to redraw)
} rawimage;
// events from menu:
// temporaly stop capture of regular sequence
#define WINEVT_PAUSE (1<<0)
// capture one image in pause mode
#define WINEVT_GETIMAGE (1<<1)
// save current image
#define WINEVT_SAVEIMAGE (1<<2)
// change color palette function
#define WINEVT_ROLLCOLORFUN (1<<3)
// flip image
#define WIN_FLIP_LR (1<<0)
#define WIN_FLIP_UD (1<<1)
typedef struct{
int ID; // identificator of OpenGL window
char *title; // title of window
GLuint Tex; // texture for image inside window
rawimage *image; // raw image data
int w; int h; // window size
float x; float y; // image offset coordinates
float x0; float y0; // center of window for coords conversion
float zoom; // zoom aspect
float Daspect; // aspect ratio between image & window sizes
int menu; // window menu identifier
uint32_t winevt; // window menu events
uint8_t flip; // flipping settings
pthread_t thread; // identificator of thread that changes window data
pthread_mutex_t mutex;// mutex for operations with image
int killthread; // flag for killing data changing thread & also signal that there's no threads
} windowData;
typedef enum{
INNER,
OPENGL
} winIdType;
void imageview_init();
windowData *createGLwin(char *title, int w, int h, rawimage *rawdata);
windowData *getWin();
int killwindow();
void renderBitmapString(float x, float y, void *font, char *string, GLubyte *color);
void clear_GL_context();
void calc_win_props(GLfloat *Wortho, GLfloat *Hortho);
void conv_mouse_to_image_coords(int x, int y, float *X, float *Y, windowData *window);
void conv_image_to_mouse_coords(float X, float Y, int *x, int *y, windowData *window);
#endif // __BMPVIEW_H__

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GLUT_window/opengl.c Normal file
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/*
* 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/>.
*/
#include <pthread.h>
#include <signal.h>
#include <stdio.h>
#include <string.h>
#include <usefull_macros.h>
#include "aux.h"
#include "cmdlnopts.h"
#include "image_functions.h"
#include "imageview.h"
void signals(int sig){
if(sig){
signal(sig, SIG_IGN);
DBG("Get signal %d, quit.\n", sig);
}
putlog("Exit with status %d", sig);
if(G.pidfile) // remove unnesessary PID file
unlink(G.pidfile);
exit(sig);
}
// manage some menu/shortcut events
static void winevt_manage(windowData *win, IMG *convertedImage){
if(win->winevt & WINEVT_SAVEIMAGE){ // save image
VDBG("Try to make screenshot");
DBG("Try to make screenshot");
//saveImages(convertedImage, "ScreenShot");
win->winevt &= ~WINEVT_SAVEIMAGE;
}
if(win->winevt & WINEVT_ROLLCOLORFUN){
roll_colorfun();
win->winevt &= ~WINEVT_ROLLCOLORFUN;
change_displayed_image(win, convertedImage);
}
}
// main thread to deal with image
static void* image_thread(_U_ void *data){
FNAME();
IMG *img = (IMG*) data;
while(1){
windowData *win = getWin();
if(!win){
DBG("!win");
pthread_exit(NULL);
}
if(win->killthread){
DBG("got killthread");
pthread_exit(NULL);
}
if(win->winevt) winevt_manage(win, img);
usleep(10000);
}
}
static void modifyImg(IMG* ima){
for(int x = 0; x < ima->w; ++x){
uint16_t c = rand() & 0xffff;
int y = rand() % ima->h;
ima->data[x + y*ima->w] = c;
ima->data[5 + x*ima->w] = 1000;
ima->data[105 + x*ima->w] = 10000;
ima->data[205 + x*ima->w] = 50000;
ima->data[305 + x*ima->w] = 0xffff;
}
}
int main(int argc, char **argv){
int ret = 0;
initial_setup();
char *self = strdup(argv[0]);
parse_args(argc, argv);
char *outfprefix = NULL;
if(G.rest_pars_num){
if(G.rest_pars_num != 1){
WARNX("You should point only one free argument - filename prefix");
signals(1);
}else outfprefix = G.rest_pars[0];
}
check4running(self, G.pidfile);
FREE(self);
signal(SIGTERM, signals); // kill (-15) - quit
signal(SIGHUP, SIG_IGN); // hup - ignore
signal(SIGINT, signals); // ctrl+C - quit
signal(SIGQUIT, signals); // ctrl+\ - quit
signal(SIGTSTP, SIG_IGN); // ignore ctrl+Z
windowData *mainwin = NULL;
if(!G.showimage && !outfprefix){ // not display image & not save it?
ERRX("You should point file name or option `display image`");
}
if(G.showimage){
imageview_init();
}
IMG convertedImage = {.h = 400, .w = 400};
convertedImage.data = MALLOC(uint16_t, convertedImage.h * convertedImage.w);
for(int i = 0; i < convertedImage.h * convertedImage.w; ++i) convertedImage.data[i] = 100;
DBG("data[200*200]=%d", convertedImage.data[200*200]);
if(G.showimage){
if(!mainwin){
DBG("Create window @ start");
mainwin = createGLwin("Sample window", convertedImage.w, convertedImage.h, NULL);
if(!mainwin){
WARNX("Can't open OpenGL window, image preview will be inaccessible");
}else
pthread_create(&mainwin->thread, NULL, &image_thread, (void*)&convertedImage); //(void*)mainwin);
}
if((mainwin = getWin())){
DBG("change image");
if(mainwin->killthread) goto destr;
modifyImg(&convertedImage);
change_displayed_image(mainwin, &convertedImage);
while((mainwin = getWin())){ // test paused state & grabbing custom frames
if((mainwin->winevt & WINEVT_PAUSE) == 0) break;
if(mainwin->winevt & WINEVT_GETIMAGE){
mainwin->winevt &= ~WINEVT_GETIMAGE;
modifyImg(&convertedImage);
change_displayed_image(mainwin, &convertedImage);
}
usleep(10000);
}
}
}
if((mainwin = getWin())) mainwin->winevt |= WINEVT_PAUSE;
destr:
if(G.showimage){
while((mainwin = getWin())){
modifyImg(&convertedImage);
change_displayed_image(mainwin, &convertedImage);
if(mainwin->killthread) break;
if(mainwin->winevt & WINEVT_GETIMAGE){
mainwin->winevt &= ~WINEVT_GETIMAGE;
modifyImg(&convertedImage);
change_displayed_image(mainwin, &convertedImage);
}
}
DBG("Close window");
clear_GL_context();
}
signals(ret);
return ret;
}

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-std=c17

2
GLUT_window/opengl.config Normal file
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// Add predefined macros for your project here. For example:
// #define THE_ANSWER 42

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[General]

170
GLUT_window/opengl.creator.user Normal file
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<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE QtCreatorProject>
<!-- Written by QtCreator 4.12.3, 2020-12-07T13:16:57. -->
<qtcreator>
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<variable>EnvironmentId</variable>
<value type="QByteArray">{cf63021e-ef53-49b0-b03b-2f2570cdf3b6}</value>
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<value type="int">0</value>
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<value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
<value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
<value type="QString" key="language">Cpp</value>
<valuemap type="QVariantMap" key="value">
<value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
</valuemap>
</valuemap>
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
<value type="QString" key="language">QmlJS</value>
<valuemap type="QVariantMap" key="value">
<value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
</valuemap>
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<value type="int" key="EditorConfiguration.CodeStyle.Count">2</value>
<value type="QByteArray" key="EditorConfiguration.Codec">KOI8-R</value>
<value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
<value type="int" key="EditorConfiguration.IndentSize">4</value>
<value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
<value type="int" key="EditorConfiguration.MarginColumn">80</value>
<value type="bool" key="EditorConfiguration.MouseHiding">true</value>
<value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
<value type="int" key="EditorConfiguration.PaddingMode">1</value>
<value type="bool" key="EditorConfiguration.ScrollWheelZooming">false</value>
<value type="bool" key="EditorConfiguration.ShowMargin">false</value>
<value type="int" key="EditorConfiguration.SmartBackspaceBehavior">1</value>
<value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
<value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
<value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
<value type="int" key="EditorConfiguration.TabSize">8</value>
<value type="bool" key="EditorConfiguration.UseGlobal">true</value>
<value type="int" key="EditorConfiguration.Utf8BomBehavior">2</value>
<value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
<value type="bool" key="EditorConfiguration.cleanIndentation">true</value>
<value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
<value type="bool" key="EditorConfiguration.inEntireDocument">true</value>
</valuemap>
</data>
<data>
<variable>ProjectExplorer.Project.PluginSettings</variable>
<valuemap type="QVariantMap">
<valuelist type="QVariantList" key="ClangCodeModel.CustomCommandLineKey"/>
<value type="bool" key="ClangCodeModel.UseGlobalConfig">true</value>
<value type="QString" key="ClangCodeModel.WarningConfigId">Builtin.Questionable</value>
<valuemap type="QVariantMap" key="ClangTools">
<value type="bool" key="ClangTools.BuildBeforeAnalysis">true</value>
<value type="QString" key="ClangTools.DiagnosticConfig">Builtin.DefaultTidyAndClazy</value>
<value type="int" key="ClangTools.ParallelJobs">4</value>
<valuelist type="QVariantList" key="ClangTools.SelectedDirs"/>
<valuelist type="QVariantList" key="ClangTools.SelectedFiles"/>
<valuelist type="QVariantList" key="ClangTools.SuppressedDiagnostics"/>
<value type="bool" key="ClangTools.UseGlobalSettings">true</value>
</valuemap>
</valuemap>
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<data>
<variable>ProjectExplorer.Project.Target.0</variable>
<valuemap type="QVariantMap">
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Desktop</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">{91347f2c-5221-46a7-80b1-0a054ca02f79}</value>
<value type="int" key="ProjectExplorer.Target.ActiveBuildConfiguration">0</value>
<value type="int" key="ProjectExplorer.Target.ActiveDeployConfiguration">0</value>
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<value type="bool" key="GenericProjectManager.GenericMakeStep.Clean">true</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
</valuemap>
<value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">2</value>
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<valuelist type="QVariantList" key="ProjectExplorer.BuildConfiguration.UserEnvironmentChanges"/>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">По умолчанию</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">GenericProjectManager.GenericBuildConfiguration</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Развёртывание</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Развёртывание</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Deploy</value>
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<value type="int" key="ProjectExplorer.BuildConfiguration.BuildStepListCount">1</value>
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<valuemap type="QVariantMap" key="ProjectExplorer.Target.PluginSettings"/>
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<value type="int" key="PE.EnvironmentAspect.Base">2</value>
<valuelist type="QVariantList" key="PE.EnvironmentAspect.Changes"/>
<value type="QString" key="ProjectExplorer.CustomExecutableRunConfiguration.Executable"></value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
<value type="QString" key="ProjectExplorer.RunConfiguration.BuildKey"></value>
<value type="QString" key="RunConfiguration.Arguments"></value>
<value type="bool" key="RunConfiguration.Arguments.multi">false</value>
<value type="QString" key="RunConfiguration.OverrideDebuggerStartup"></value>
<value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
<value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
<value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
<value type="QString" key="RunConfiguration.WorkingDirectory"></value>
<value type="QString" key="RunConfiguration.WorkingDirectory.default"></value>
</valuemap>
<value type="int" key="ProjectExplorer.Target.RunConfigurationCount">1</value>
</valuemap>
</data>
<data>
<variable>ProjectExplorer.Project.TargetCount</variable>
<value type="int">1</value>
</data>
<data>
<variable>ProjectExplorer.Project.Updater.FileVersion</variable>
<value type="int">22</value>
</data>
<data>
<variable>Version</variable>
<value type="int">22</value>
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165
GLUT_window/opengl.creator.user.7bd84e3 Normal file
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@ -0,0 +1,165 @@
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE QtCreatorProject>
<!-- Written by QtCreator 4.10.1, 2020-03-30T18:57:01. -->
<qtcreator>
<data>
<variable>EnvironmentId</variable>
<value type="QByteArray">{7bd84e39-ca37-46d3-be9d-99ebea85bc0d}</value>
</data>
<data>
<variable>ProjectExplorer.Project.ActiveTarget</variable>
<value type="int">0</value>
</data>
<data>
<variable>ProjectExplorer.Project.EditorSettings</variable>
<valuemap type="QVariantMap">
<value type="bool" key="EditorConfiguration.AutoIndent">true</value>
<value type="bool" key="EditorConfiguration.AutoSpacesForTabs">false</value>
<value type="bool" key="EditorConfiguration.CamelCaseNavigation">true</value>
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.0">
<value type="QString" key="language">Cpp</value>
<valuemap type="QVariantMap" key="value">
<value type="QByteArray" key="CurrentPreferences">CppGlobal</value>
</valuemap>
</valuemap>
<valuemap type="QVariantMap" key="EditorConfiguration.CodeStyle.1">
<value type="QString" key="language">QmlJS</value>
<valuemap type="QVariantMap" key="value">
<value type="QByteArray" key="CurrentPreferences">QmlJSGlobal</value>
</valuemap>
</valuemap>
<value type="int" key="EditorConfiguration.CodeStyle.Count">2</value>
<value type="QByteArray" key="EditorConfiguration.Codec">KOI8-R</value>
<value type="bool" key="EditorConfiguration.ConstrainTooltips">false</value>
<value type="int" key="EditorConfiguration.IndentSize">4</value>
<value type="bool" key="EditorConfiguration.KeyboardTooltips">false</value>
<value type="int" key="EditorConfiguration.MarginColumn">80</value>
<value type="bool" key="EditorConfiguration.MouseHiding">true</value>
<value type="bool" key="EditorConfiguration.MouseNavigation">true</value>
<value type="int" key="EditorConfiguration.PaddingMode">1</value>
<value type="bool" key="EditorConfiguration.ScrollWheelZooming">true</value>
<value type="bool" key="EditorConfiguration.ShowMargin">false</value>
<value type="int" key="EditorConfiguration.SmartBackspaceBehavior">0</value>
<value type="bool" key="EditorConfiguration.SmartSelectionChanging">true</value>
<value type="bool" key="EditorConfiguration.SpacesForTabs">true</value>
<value type="int" key="EditorConfiguration.TabKeyBehavior">0</value>
<value type="int" key="EditorConfiguration.TabSize">8</value>
<value type="bool" key="EditorConfiguration.UseGlobal">true</value>
<value type="int" key="EditorConfiguration.Utf8BomBehavior">1</value>
<value type="bool" key="EditorConfiguration.addFinalNewLine">true</value>
<value type="bool" key="EditorConfiguration.cleanIndentation">false</value>
<value type="bool" key="EditorConfiguration.cleanWhitespace">true</value>
<value type="bool" key="EditorConfiguration.inEntireDocument">false</value>
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<valuemap type="QVariantMap">
<valuelist type="QVariantList" key="ClangCodeModel.CustomCommandLineKey"/>
<value type="bool" key="ClangCodeModel.UseGlobalConfig">true</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">Desktop</value>
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<value type="QString" key="GenericProjectManager.GenericMakeStep.MakeArguments"></value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Сборка</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.BuildSteps.Clean</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">По умолчанию</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName">По умолчанию</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">GenericProjectManager.GenericBuildConfiguration</value>
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<value type="QString" key="ProjectExplorer.ProjectConfiguration.DefaultDisplayName">Особая программа</value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.DisplayName"></value>
<value type="QString" key="ProjectExplorer.ProjectConfiguration.Id">ProjectExplorer.CustomExecutableRunConfiguration</value>
<value type="QString" key="RunConfiguration.Arguments"></value>
<value type="uint" key="RunConfiguration.QmlDebugServerPort">3768</value>
<value type="bool" key="RunConfiguration.UseCppDebugger">false</value>
<value type="bool" key="RunConfiguration.UseCppDebuggerAuto">true</value>
<value type="bool" key="RunConfiguration.UseMultiProcess">false</value>
<value type="bool" key="RunConfiguration.UseQmlDebugger">false</value>
<value type="bool" key="RunConfiguration.UseQmlDebuggerAuto">true</value>
<value type="QString" key="RunConfiguration.WorkingDirectory"></value>
<value type="QString" key="RunConfiguration.WorkingDirectory.default"></value>
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<value type="int">1</value>
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<variable>ProjectExplorer.Project.Updater.FileVersion</variable>
<value type="int">22</value>
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<variable>Version</variable>
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1
GLUT_window/opengl.cxxflags Normal file
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@ -0,0 +1 @@
-std=c++17

12
GLUT_window/opengl.files Normal file
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@ -0,0 +1,12 @@
aux.c
aux.h
camera_functions.h
cmdlnopts.c
cmdlnopts.h
events.c
events.h
opengl.c
image_functions.c
image_functions.h
imageview.c
imageview.h

2
GLUT_window/opengl.includes Normal file
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@ -0,0 +1,2 @@
.
/usr/local/include/flycapture

14
thread_array_management/test.c
View File

@ -109,7 +109,7 @@ static threadinfo *findthread(char *name){
} }
// add message to queue // add message to queue
static char *addmesg(msgidx idx, message *msg, char *txt){ static char *mesgAddText(msgidx idx, message *msg, char *txt){
if(idx < idxMOSI || idx > idxMISO){ if(idx < idxMOSI || idx > idxMISO){
WARNX("Wrong message index"); WARNX("Wrong message index");
return NULL; return NULL;
@ -126,7 +126,7 @@ static char *addmesg(msgidx idx, message *msg, char *txt){
} }
// get all messages from queue (allocates data, should be free'd after usage!) // get all messages from queue (allocates data, should be free'd after usage!)
static char *getmesg(msgidx idx, message *msg){ static char *mesgGetText(msgidx idx, message *msg){
if(idx < idxMOSI || idx > idxMISO){ if(idx < idxMOSI || idx > idxMISO){
WARNX("Wrong message index"); WARNX("Wrong message index");
return NULL; return NULL;
@ -203,12 +203,12 @@ int killThread(const char *name){
static void *handler(void *data){ static void *handler(void *data){
threadinfo *ti = (threadinfo*)data; threadinfo *ti = (threadinfo*)data;
while(1){ while(1){
char *got = getmesg(idxMOSI, &ti->mesg); char *got = mesgGetText(idxMOSI, &ti->mesg);
if(got){ if(got){
green("%s got: %s\n", ti->name, got); green("%s got: %s\n", ti->name, got);
FREE(got); FREE(got);
addmesg(idxMISO, &ti->mesg, "received"); mesgAddText(idxMISO, &ti->mesg, "received");
addmesg(idxMISO, &ti->mesg, "need more"); mesgAddText(idxMISO, &ti->mesg, "need more");
} }
usleep(100); usleep(100);
} }
@ -220,7 +220,7 @@ static void dividemessages(message *msg, char *longtext){
for(char *s = copy; ; s = NULL){ for(char *s = copy; ; s = NULL){
char *nxt = strtok_r(s, " ", &saveptr); char *nxt = strtok_r(s, " ", &saveptr);
if(!nxt) break; if(!nxt) break;
addmesg(idxMOSI, msg, nxt); mesgAddText(idxMOSI, msg, nxt);
} }
FREE(copy); FREE(copy);
} }
@ -276,7 +276,7 @@ int main(){
threadinfo *ti = &lptr->ti; threadinfo *ti = &lptr->ti;
lptr = lptr->next; lptr = lptr->next;
char *got; char *got;
while((got = getmesg(idxMISO, &ti->mesg))){ while((got = mesgGetText(idxMISO, &ti->mesg))){
red("got from '%s': %s\n", ti->name, got); red("got from '%s': %s\n", ti->name, got);
fflush(stdout); fflush(stdout);
FREE(got); FREE(got);