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GNU AFFERO GENERAL PUBLIC LICENSE
Version 3, 19 November 2007
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Makefile
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##
## Gem-graph OpenGL experiments
##
## Desc: Makefile
##
## Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
## Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
##
## This file is part of Gem-graph.
##
## This program is free software: you can redistribute it and/or modify
## it under the terms of the GNU Affero 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 Affero General Public License for more details.
##
## You should have received a copy of the GNU Affero General Public License
## along with this program. If not, see <http://www.gnu.org/licenses/>.
##
.PHONY: all clean install run build_system
.DELETE_ON_ERROR: $(BINDIR)/gem-graph-client
.DEFAULT_GOAL := all
#
# Color codes
#
CL='\033[0;32m'
CL2='\033[1;36m'
CL3='\033[0m'
NC='\033[1;37m'
#
# Variables & constants
#
NTHREADS= $(shell nproc)
CC=gcc
WARNINGS= -Wall
DEBUG= -ggdb -fno-omit-frame-pointer -fdiagnostics-color=always
OPTIMIZE= -O3
INCLUDE= $(shell pkg-config --cflags glib-2.0 libxml-2.0 gtk4)
LIBS= $(shell pkg-config --libs glib-2.0 libxml-2.0 gtk4) -lGL -lGLU -lm -lepoxy -lX11 -lGLEW
BINDIR=bin
BUILDDIR=build
SRCDIR=src
#vpath %.c $(SRCDIR)
SOURCES= $(shell find $(SRCDIR) -type f -name "*.c")
BUILDBINS=$(patsubst %.c,$(BUILDDIR)/%.o,$(SOURCES))
BUILDDEPS=$(patsubst %.c,$(BUILDDIR)/%.d,$(SOURCES))
-include /etc/os-release
#
# Directories
#
$(BUILDDIR):
@mkdir -p $@
@echo -e ${CL2}[$@] ${CL}folder generated.${CL3}
$(BINDIR):
@mkdir -p $@
@echo -e ${CL2}[$@] ${CL}folder generated.${CL3}
#
# Dependencies
#
-include $(BUILDDEPS)
$(BUILDDIR)/%.d: %.c | $(BUILDDIR)
@mkdir -p $(shell dirname $@)
@$(CC) -MM -MT $(@:%.d=%.o) -MF $@ $<
@echo -e ${CL2}[$@] ${CL}dependencies generated.${CL3}
#
# Compilation
#
$(BINDIR)/gem-graph-client: $(BUILDBINS) | $(BINDIR)
@$(CC) -o $@ $(WARNINGS) $(DEBUG) $(OPTIMIZE) $^ $(INCLUDE) $(LIBS)
@echo -e ${CL2}[$@] ${CL}built.${CL3}
$(BUILDDIR)/%.o: %.c | $(BUILDDIR)
@mkdir -p $(shell dirname $@)
@$(CC) $(WARNINGS) $(DEBUG) $(OPTIMIZE) $(INCLUDE) -c $< -o $@
@echo -e ${CL2}[$@] ${CL}compiled.${CL3}
#
# Virtual recipes
#
clean:
@rm -rf $(BINDIR)
@rm -rf $(BUILDDIR)
@echo -e ${CL2}[$@] ${CL}done.${CL3}
install:
echo "Installing is not supported"
ifeq ($(ID), guix)
build_system:
@echo -e ${CL2}[$@] ${CL}building through containerized manifest...${CL3}
@guix shell --container -m ./manifest.scm -- make $(BINDIR)/gem-graph-client -j $(NTHREADS)
@echo -e ${CL2}[$@] ${CL}done.${CL3}
else
build_system:
@echo -e ${CL2}[$@] ${CL}building...${CL3}
@make $(BINDIR)/gem-graph-client -j $(NTHREADS)
@echo -e ${CL2}[$@] ${CL}done.${CL3}
endif
run: build_system
@echo -e ${CL2}[$@] ${CL}executing...${CL3}
@$(BINDIR)/gem-graph-client
@echo -e ${CL2}[$@] ${CL}done.${CL3}
debug: build_system
@echo -e ${CL2}[$@] ${CL}executing...${CL3}
@gdb $(BINDIR)/gem-graph-client
@echo -e ${CL2}[$@] ${CL}done.${CL3}
valgrind: build_system
@echo -e ${CL2}[$@] ${CL}executing...${CL3}
@valgrind $(BINDIR)/gem-graph-client
@echo -e ${CL2}[$@] ${CL}done.${CL3}
all: build_system
@echo -e ${CL2}[$@] ${CL}done.${CL3}

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# Gem-graph Client

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Before

Width:  |  Height:  |  Size: 44 KiB

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@ -1,143 +0,0 @@
static GLuint *buffer_lines_origin = NULL;
---
long get_buffer_lines_size() {return buffer_lines_size / 2;}
void inc_buffer_lines_size(long inc) {buffer_lines_size += inc * 2;}
void dec_buffer_lines_size(long dec) {buffer_lines_size -= dec * 2;}
void xxx_draw_line (GLuint *lines_origin, int a, int b, long lines_index)
{
// https://docs.gtk.org/glib/func.realloc.html
printf("xxx_draw_line %ld\n", lines_index);
buffer_lines_origin = g_realloc(lines_origin, sizeof(GLuint) * 2);
*(lines_origin + lines_index + 0) = a; // lines_index ++;
*(lines_origin + lines_index + 1) = b; // lines_index ++;
}
/* (gdb) help
List of classes of commands:
aliases -- User-defined aliases of other commands.
breakpoints -- Making program stop at certain points.
data -- Examining data.
files -- Specifying and examining files.
internals -- Maintenance commands.
obscure -- Obscure features.
running -- Running the program.
stack -- Examining the stack.
status -- Status inquiries.
support -- Support facilities.
text-user-interface -- TUI is the GDB text based interface.
tracepoints -- Tracing of program execution without stopping the program.
user-defined -- User-defined commands.
*/
-------------------------------------------------------------------------------------------
GLuint arrows[] = {
1, 0, 0, 0, 0,
/* 1, 1, 1, 0, 0, */
/* 1, 2, 2, 1, 1, */
/* 1, 3, 2, 2, 1, */
/* 1, 4, 3, 0, 1, */
/* 1, 5, 3, 0, 2, */
/* 1, 1, 3, 0, 2, */
/* 1, 0, 2, 0, 2, */
/* 1, 5, 2, 1, 1, */
// load, site, x, y, z
};
static void get_model_data_and_user_preferences(){
model_space_size_x = 1; // 0 < model_space_size_x
model_space_size_y = 1; // 0 < model_space_size_y
model_space_size_z = 1; // 0 < model_space_size_z
// XXX ONLY space drawed, no arrows yet
model_arrows_nb = sizeof(arrows); // assert : l'emplacement des flèches est contraint
// par model_space_size_x, y, z et le nombre de sites
central_stars_nb = 0; // à calculer TODO
// ! WARNING ! Pour l'instant égal au nombre de flèches ! (central stars réécrites)
central_stars_nb = model_arrows_nb;
// pref_mark_unit_space = 0; // 0 = no marks, 1 = 1st, 2 = last, 3 = both
// pref_style_lines_planes = 0; // 0 = arrows as lines, 1 = as planes, 2 = mix
// pref_style_mix_colors = 0; // TODO
pref_show_grid = 0; // 0, 1, 2, 3, 5, 6, 10, 15, 30, etc
// xyz, 0, x, y, z, xy, xz, yz, xyz
pref_test_diagonal = 1;
}
-------------------------------------------------------------------------------------------
in buffers.c (line 283)
static void draw_line (GLuint *lines_origin, int a, int b)
{
xxx_draw_line (lines_origin, a, b, lines_index);
lines_index += 2;
// *(lines_origin + lines_index) = a; lines_index ++;
// *(lines_origin + lines_index) = b; lines_index ++;
}
---------------------------------------------------------------------------
[ n] load site x y z ---- < arrows array > ------------------------------------------------------------
[ 0] = 1, 0, 0, 0, 0
[ 1] = 0, 0, 0, 217808480, 32708
[ 2] = 217809344, 32708, 217807968, 32708, 217810080
[ 3] = 32708, -69297984, 32707, 229965808, 32708
[ 4] = 229944176, 32708, 217808608, 32708, 229970384
[ 5] = 32708, 217808576, 32708, 217809024, 32708
[ 6] = 217808992, 32708, -69297888, 32707, 229954976
[ 7] = 32708, 217808512, 32708, 229949456, 32708
[ 8] = 229942736, 32708, 0, 0, 0
[ 9] = 0, 0, 0, 226977440, 32708
[10] = 217810048, 32708, 217808352, 32708, 217808704
[11] = 32708, -69297600, 32707, 217808448, 32708
[12] = 217807808, 32708, 217808896, 32708, 217809312
[13] = 32708, 217807872, 32708, 225561296, 32708
[14] = 217814880, 32708, 217814944, 32708, 217807776
[15] = 32708, 229974752, 32708, 217811040, 32708
[16] = 229947200, 32708, 0, 0, 33506144
[17] = 0, 0, 0, 0, 0
[18] = 33204048, 0, 0, 0, 33587952
[19] = 0, 30217696, 0, 30245088, 0
[ n] load site x y z ---- < arrows array > ------------------------------------------------------------
[ 0] = 1, 0, 0, 0, 0
[ 1] = 0, 0, 0, 2105314912, 32683
[ 2] = 2105315776, 32683, 2105314400, 32683, 2105316512
[ 3] = 32683, 2019551424, 32683, 2117545968, 32683
[ 4] = 2117524336, 32683, 2105315040, 32683, 2117550544
[ 5] = 32683, 2105315008, 32683, 2105315456, 32683
[ 6] = 2105315424, 32683, 2019551520, 32683, 2117535136
[ 7] = 32683, 2105314944, 32683, 2117529616, 32683
[ 8] = 2117522896, 32683, 0, 0, 0
[ 9] = 0, 0, 0, 2114557600, 32683
[10] = 2105316480, 32683, 2105314784, 32683, 2105315136
[11] = 32683, 2019551808, 32683, 2105314880, 32683
[12] = 2105314240, 32683, 2105315328, 32683, 2105315744
[13] = 32683, 2105314304, 32683, 2113141456, 32683
[14] = 2105321312, 32683, 2105321376, 32683, 2105314208
[15] = 32683, 2117554912, 32683, 2105317472, 32683
[16] = 2117527360, 32683, 0, 0, 16032608
[17] = 0, 0, 0, 0, 0
[18] = 15766240, 0, 0, 0, 15950576
[19] = 0, 12654048, 0, 12681440, 0

View File

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@ -1,79 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: OpenGL utils header
*
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <unistd.h>
#include <stdbool.h>
#include <GL/glu.h>
/*
* Writes basis and tip for all arrows into vertex and color buffers
*
* @param dimensions (x,y,z)
*
* @return void
*/
void arrows_write_terminations (long x, long y, long z);
/*
* Writes lines for arrow oriented to the east or west into lines buffer
*
* @param s,
* weight,
* site
*
* @return void
*/
void write_arrow_lines_east_west (long s, int weight, int site);
/*
* Writes lines for arrow oriented to the zenith or nadir into lines buffer
*
* @param s,
* weight,
* site
*
* @return void
*/
void write_arrow_lines_zenith_nadir (long s, int weight, int site);
/*
* Writes lines for arrow oriented to the south or north into lines buffer
*
* @param s,
* weight,
* site
*
* @return void
*/
void write_arrow_lines_south_north (long s, int weight, int site);
/*
* Writes three lines that draw arrow basis (central star) into lines buffer
*
* @param n
*
* @return void
*/
void arrows_write_basis(long n);

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@ -1,96 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: Base header
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <assert.h>
#include <errno.h>
#include <fcntl.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <stdbool.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <glib-2.0/glib.h>
#define G_APPLICATION_DEFAULT_FLAGS 0
enum
{
X_AXIS,
Y_AXIS,
Z_AXIS,
N_AXIS
};
/*
* Read a file from filename into a provided buffer
*
* @param filename, file name
* contents, target ptr
*
* @return void
*/
static inline char *read_file(char *filename)
{
int fd;
int filesize;
char *contents;
fd = open(filename, O_RDONLY);
if(fd < 0) {
printf("Couldn't read file: %s\n",filename);
return NULL;
}
filesize = lseek(fd, 0, SEEK_END) + 1 ;
contents = g_malloc(filesize * sizeof(char));
assert (contents);
lseek(fd, 0, SEEK_SET);
read(fd,contents,filesize);
contents[filesize-1] = '\0';
close(fd);
return contents;
}
/* I'm standing on Earth (any planet or star or spinning spheroid, in fact)
* and looking towards its North pole
*
* X - X = EAST - WEST = rouge - cyan
* Y - Y = ZENITH - NADIR = vert - magenta
* Z - Z = NORTH - SOUTH = bleu - jaune
*/
#define EAST 0 // + x rouge
#define WEST 1 // - x cyan
#define ZENITH 2 // + y vert
#define NADIR 3 // - y magenta
#define SOUTH 4 // - z jaune
#define NORTH 5 // + z bleu

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@ -1,275 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: OpenGL utils header
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "base.h"
#include <unistd.h>
#include <stdbool.h>
#include <epoxy/gl.h>
#include <GL/glu.h>
#include <GL/glext.h>
/*
* Structure describing a gl_area and its parameters, used to create a table
* of Gem-graph client current gl_areas
*/
struct gl_area_entry {
char name[16];
GLuint vao; // init_buffers
GLuint position_buffer; // shutdown, draw
GLuint color_buffer; // shutdown, draw
GLuint program; // shutdown, init_shaders, draw
GLuint m; // init_shaders, draw
GLuint v; // init_shaders, draw
GLuint p; // init_shaders, draw
// GLuint line_indices_nb; // now : graphics.c > int buffer_lines_ndx
// GLuint plan_indices_nb; // now : graphics.c > int buffer_plans_ndx
};
/*
* Find gl_area_entry from a gl_area ptr
*
* @param gl_area, ptr to the gl_area widget
*
*
* @return entry ptr
*/
struct gl_area_entry *graphics_find_glarea_from_ptr(const char *name);
/*
* Initializes a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if initialized
*/
bool graphics_init(const char *gl_area);
/*
* Draws the current buffer to a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return void
*/
void graphics_draw(const void *gl_area);
/*
* Shutdowns a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if success
*/
bool graphics_shutdown(const void *gl_area);
/*
* Initializes the shaders of a gl_area and link them to a program
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if initialized
*/
bool graphics_init_shaders(const void *gl_area);
/* Initializes the buffer of a gl_area
* Calls according to the user preferences
* @param gl_area, ptr to the gl_area widget
* @return void
*/
void graphics_init_buffers(const void *gl_area);
/*
* Writes values to describe a line from a to b into the line buffer
*
* @param coords GLuint (a,b)
*
* @return void
*/
void graphics_write_line (GLuint a, GLuint b);
/*
* Writes values to describe a vertex at (x,y,z) into the vertex buffer
*
* @param coords GLfloat(x,y,z)
*
* @return void
*/
void graphics_write_vertex (GLfloat x, GLfloat y, GLfloat z);
/*
* Writes values to describe a color (r,g,b) into the color buffer
*
* @param color GLfloat(r,g,b)
*
* @return void
*/
void graphics_write_color (GLfloat r, GLfloat g, GLfloat b);
/*
* Writes values to describe an (a,b,c) plan (triangle) into the plan buffer
*
* @param coords GLuint (a,b,c)
*
* @return void
*/
void graphics_write_plan (GLuint a, GLuint b, GLuint c);
/*
* Initializes an identity matrix
*
* @param res, target ptr
*
* @return void
*/
static inline void compute_i(float *res)
{
/* initialize to the identity matrix */
res[0] = 1.f; res[4] = 0.f; res[8] = 0.f; res[12] = 0.f;
res[1] = 0.f; res[5] = 1.f; res[9] = 0.f; res[13] = 0.f;
res[2] = 0.f; res[6] = 0.f; res[10] = 1.f; res[14] = 0.f;
res[3] = 0.f; res[7] = 0.f; res[11] = 0.f; res[15] = 1.f;
}
/*
* Computes the projection matrix
*
* @param res, target ptr
* phi, XXX
* theta, XXX
* psi, XXX
*
* @return void
*/
static inline void compute_mvp(float *res, float phi, float theta, float psi)
{
float x = phi *(G_PI / 180.f);
float y = theta *(G_PI / 180.f);
float z = psi *(G_PI / 180.f);
float c1 = cosf(x), s1 = sinf(x);
float c2 = cosf(y), s2 = sinf(y);
float c3 = cosf(z), s3 = sinf(z);
float c3c2 = c3 * c2;
float s3c1 = s3 * c1;
float c3s2s1 = c3 * s2 * s1;
float s3s1 = s3 * s1;
float c3s2c1 = c3 * s2 * c1;
float s3c2 = s3 * c2;
float c3c1 = c3 * c1;
float s3s2s1 = s3 * s2 * s1;
float c3s1 = c3 * s1;
float s3s2c1 = s3 * s2 * c1;
float c2s1 = c2 * s1;
float c2c1 = c2 * c1;
compute_i(res);
/* apply all three rotations using the three matrices:
*
* c3 s3 0 c2 0 -s2 1 0 0
* -s3 c3 0 0 1 0 0 c1 s1
* 0 0 1 s2 0 c2 0 -s1 c1
*/
res[0] = c3c2; res[4] = s3c1 + c3s2s1; res[8] = s3s1 - c3s2c1; res[12] = 0.f;
res[1] = -s3c2; res[5] = c3c1 - s3s2s1; res[9] = c3s1 + s3s2c1; res[13] = 0.f;
res[2] = s2; res[6] = -c2s1; res[10] = c2c1; res[14] = 0.f;
res[3] = 0.f; res[7] = 0.f; res[11] = 0.f; res[15] = 1.f;
}
/*
* Created and compile a shader
*
* @param type, shader type
* src, source code of shader
*
* @return shader id
*/
// static inline GLuint create_shader(int type, const char *src)
// {
// GLuint shader;
// int status;
// shader = glCreateShader(type);
// glShaderSource(shader, 1, &src, NULL);
// glCompileShader(shader);
// glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
// if(status == GL_FALSE) {
// int log_len;
// char *buffer;
// glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &log_len);
// buffer = g_malloc(log_len + 1);
// assert (buffer);
// glGetShaderInfoLog(shader, log_len, NULL, buffer);
// g_warning("Compile failure in %s shader:\n%s",
// type == GL_VERTEX_SHADER ? "vertex" : "fragment",
// buffer);
// g_free(buffer);
// glDeleteShader(shader);
// return 0;
// }
// return shader;
// }
/*
* Find the gl_area_entry size
*
* @param void
*
* @return size of array
*/
extern struct gl_area_entry **gl_area_array;
static inline short gl_area_size(void)
{
struct gl_area_entry **cur;
short size;
// 28-9-2023 JE COMMENTE LA LIGNE SUIVANTE SANS SAVOIR CE QUE JE FAIS
// (J'ESSAIE D'ISOLER CE QUI CONCERNE LES SHADERS HORS DE "graphics.c")
// Check uninitialized and quit <<< WARNING ! TODO
if (gl_area_array == NULL) return 0;
cur = gl_area_array;
while(*cur) {
cur++;
size++;
}
return size;
}
/*** TEST ***/
void main_test_graphics (void);

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@ -1,74 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: OpenGL utils header
*
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <unistd.h>
#include <stdbool.h>
#include <GL/glu.h>
/*
* Writes grid lines intersections to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_intersections (long x, long y, long z);
/*
* Writes grid ridges to vertex and color buffers
*
* @param coords long (x,y,z), step_x, step_y, step_z
*
* @return void
*/
void grid_write_ridges (long x, long y, long z);
/*
* Writes grid lines for x axis to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_x (long x, long y, long z);
/*
* Writes grid lines for y axis to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_y (long x, long y, long z);
/*
* Writes grid lines for z axis to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_z (long x, long y, long z);

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@ -1,25 +0,0 @@
#include <stdbool.h>
#include <libxml/parser.h>
// #define LIBXML_TEST_VERSION
// xmlCheckVersion(20912)
bool model_init(char *docname);
bool model_shutdown(char *docname);
char model_get_dim(xmlChar *reste);
char model_get_dim_X(xmlChar *path);
char model_get_dim_Y(xmlChar *path);
char model_get_dim_Z(xmlChar *path);
char model_get_dim_value(xmlChar *path, xmlChar *axis);
char model_get_cond (xmlChar *path, xmlChar *node_id);
char model_get_trans (xmlChar *path, xmlChar *node_id);
char model_get_cond_tree (xmlChar *path);
char model_get_multiplicity (xmlChar *path);
char model_get_objects_list(xmlChar *path);
char model_get_states_list(xmlChar *path);
long model_get_state_arrows_count(xmlChar *path, long n);
int model_get_state(xmlChar *path, xmlChar *state_id);
char model_get_conditions_list(xmlChar *path);
char model_get_transitions_list(xmlChar *path);

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@ -1,110 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: OpenGL utils header
*
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "base.h"
#include <unistd.h>
#include <stdbool.h>
#include <epoxy/gl.h>
#include <GL/glu.h>
#include <GL/glext.h>
/*
* Initializes the shaders of a gl_area and link them to a program
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if initialized
*/
bool graphics_init_shaders(const void *gl_area);
/*
* Created and compile a shader
*
* @param type, shader type
* src, source code of shader
*
* @return shader id
*/
static inline GLuint create_shader(int type, const char *src)
{
GLuint shader;
int status;
shader = glCreateShader(type);
glShaderSource(shader, 1, &src, NULL);
glCompileShader(shader);
glGetShaderiv(shader, GL_COMPILE_STATUS, &status);
if(status == GL_FALSE) {
int log_len;
char *buffer;
glGetShaderiv(shader, GL_INFO_LOG_LENGTH, &log_len);
buffer = g_malloc(log_len + 1);
assert (buffer);
glGetShaderInfoLog(shader, log_len, NULL, buffer);
g_warning("Compile failure in %s shader:\n%s",
type == GL_VERTEX_SHADER ? "vertex" : "fragment",
buffer);
g_free(buffer);
glDeleteShader(shader);
return 0;
}
return shader;
}
/*
* Find the gl_area_entry size
*
* @param void
*
* @return size of array
*/
// extern struct gl_area_entry **gl_area_array;
// static inline short gl_area_size(void)
// {
// struct gl_area_entry **cur;
// short size;
// Check uninitialized and quit
// if (gl_area_array == NULL) return 0;
// cur = gl_area_array;
// while(*cur) {
// cur++;
// size++;
// }
// return size;
// }
/*** TEST ***/
// void main_test_graphics (void);

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@ -1,104 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: User interface header
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <unistd.h>
#include <gtk-4.0/gtk/gtk.h>
#include "../include/base.h"
extern float rotation_angles[N_AXIS];
extern GtkWidget *gl_area;
G_BEGIN_DECLS
#define GEM_GRAPH_CLIENT_TYPE_WINDOW (gem_graph_client_window_get_type())
G_DECLARE_FINAL_TYPE (GemGraphClientWindow,
gem_graph_client_window,
GEM_GRAPH_CLIENT,
WINDOW,
GtkApplicationWindow)
G_END_DECLS
G_BEGIN_DECLS
#define GEM_GRAPH_CLIENT_TYPE_APPLICATION (gem_graph_client_application_get_type())
G_DECLARE_FINAL_TYPE (GemGraphClientApplication,
gem_graph_client_application,
GEM_GRAPH_CLIENT,
APPLICATION,
GtkApplication)
GemGraphClientApplication *gem_graph_client_application_new(const char *application_id,
GApplicationFlags flags);
G_END_DECLS
void ui_enable_action(const char *name);
void ui_disable_action(const char *name);
//
// Actions
//
void on_quit_action(GSimpleAction *action,
GVariant *parameter,
gpointer user_data);
static const GActionEntry app_actions[] = {
{ "quit", on_quit_action, NULL, NULL, NULL },
};
//
// General events
//
void on_axis_value_change(GtkAdjustment *adjustment, gpointer data);
gboolean on_render(GtkGLArea * area, GdkGLContext * context);
void on_realize(GtkWidget *widget);
void on_unrealize(GtkWidget *widget);
void on_close_window(GtkWidget *widget);
/* -------------------------------------------------------------------------- */
//
// Window primitives
//
void ui_set_stack(const char *mode);
void ui_setup_glarea(GtkGLArea *target, GtkBox *target_controls);
void ui_send_internal_notification(const char *message);
void ui_close_internal_notification(void);
void ui_toggle_sidebar();

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@ -1,29 +0,0 @@
;;
;; Dépendances sous GNU Guix
;;
(specifications->manifest
(list
"bash"
"coreutils"
"gcc-toolchain"
"pkg-config"
"valgrind"
"findutils"
"gdb"
"make"
"gtk"
"libxml2"
"glu"
"glew"
"glfw"
"libepoxy"
"pango@1.90.0"
"xorgproto"
"glib"
"mesa-headers"
"mesa"
"libadwaita"
)
)

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@ -1,166 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: OpenGL utils header
*
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
* Copyright (C) 2023 Arien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* aint with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../../include/base.h"
#include "../../include/graphics.h"
/* I'm standing on Earth (any planet or star or spinning spheroid, in fact)
* and looking towards its North pole
*
* X - X = EAST - WEST = rouge - cyan
* Y - Y = ZENITH - NADIR = vert - magenta
* Z - Z = NORTH - SOUTH = bleu - jaune
*/
/*
* Writes basis and tip for all arrows into vertex and color buffers
*
* @param dimensions (x,y,z)
*
* @return void
*/
void arrows_write_terminations (long x, long y, long z)
{
float max, i, j, k, vx, vy, vz, arrow_basis_width, arrow_tip_padding;
max = fmax(x, y); max = fmax(max, z);
// arrow_basis_width donne la dimension de l'étoile centrale
arrow_basis_width = 0.3f * (1 / max),
// décale légèrement les pointes des flèches
// pour qu'elles n'aillent pas jusqu'aux faces des cubes
arrow_tip_padding = 0.1 * (1 / max);
for (i = 0; i < x; i++)
for (j = 0; j < y; j++)
for (k = 0; k < z; k++){
vx = (2 * i / x - 1) * x / max + (1 / max);
vy = (2 * j / y - 1) * y / max + (1 / max);
vz = (2 * k / z - 1) * z / max + (1 / max);
// X - X axis - central star (basis)
graphics_write_vertex(vx + arrow_basis_width, vy, vz);
graphics_write_vertex(vx - arrow_basis_width, vy, vz);
graphics_write_color(0.3f, 0.3f, 0.3f);
graphics_write_color(0.3f, 0.3f, 0.3f);
// Y - Y axis - central star (basis)
graphics_write_vertex(vx, vy + arrow_basis_width, vz);
graphics_write_vertex(vx, vy - arrow_basis_width, vz);
graphics_write_color(0.3f, 0.3f, 0.3f);
graphics_write_color(0.3f, 0.3f, 0.3f);
// Z - Z axis - central star (basis)
graphics_write_vertex(vx, vy, vz + arrow_basis_width);
graphics_write_vertex(vx, vy, vz - arrow_basis_width);
graphics_write_color(0.3f, 0.3f, 0.3f);
graphics_write_color(0.3f, 0.3f, 0.3f);
// X - X (EAST - WEST) axis - arrows tips
graphics_write_vertex (vx + (1 / max) - arrow_tip_padding, vy, vz);
graphics_write_vertex (vx - (1 / max) + arrow_tip_padding, vy, vz);
graphics_write_color(1.0f, 0.0f, 0.0f);
graphics_write_color(0.0f, 1.0f, 1.0f);
// Y - Y (ZENITH - NADIR) axis - arrows tips
graphics_write_vertex (vx, vy + (1 / max) - arrow_tip_padding, vz);
graphics_write_vertex (vx, vy - (1 / max) + arrow_tip_padding, vz);
graphics_write_color(0.0f, 1.0f, 0.0f);
graphics_write_color(1.0f, 0.0f, 1.0f);
// Z - Z (NORTH - SOUTH) axis - arrows tips
graphics_write_vertex (vx, vy, vz + (1 / max) - arrow_tip_padding);
graphics_write_vertex (vx, vy, vz - (1 / max) + arrow_tip_padding);
graphics_write_color(0.0f, 0.0f, 1.0f);
graphics_write_color(1.0f, 1.0f, 0.0f);
};
}
/*
* Writes lines for arrow oriented towards east or west into lines buffer
*
* @param offset,
* weight,
* site
*
* @return void
*/
void write_arrow_lines_east_west (long offset, int weight, int site)
{
graphics_write_line (offset + 2, offset + 6 + site % 2);
graphics_write_line (offset + 3, offset + 6 + site % 2);
graphics_write_line (offset + 4, offset + 6 + site % 2);
graphics_write_line (offset + 5, offset + 6 + site % 2);
}
/*
* Writes lines for arrow oriented towards zenith or nadir into lines buffer
*
* @param offset,
* weight,
* site
*
* @return void
*/
void write_arrow_lines_zenith_nadir (long offset, int weight, int site)
{
graphics_write_line (offset + 0, offset + 8 + site % 2);
graphics_write_line (offset + 1, offset + 8 + site % 2);
graphics_write_line (offset + 4, offset + 8 + site % 2);
graphics_write_line (offset + 5, offset + 8 + site % 2);
}
/*
* Writes lines for arrow oriented towards south or north into lines buffer
*
* @param offset,
* weight,
* site
*
* @return void
*/
void write_arrow_lines_south_north (long offset, int weight, int site)
{
graphics_write_line (offset + 0, offset + 10 + site % 2);
graphics_write_line (offset + 1, offset + 10 + site % 2);
graphics_write_line (offset + 2, offset + 10 + site % 2);
graphics_write_line (offset + 3, offset + 10 + site % 2);
}
/*
* Writes lines for arrow basis into lines buffer
*
* @param offset
*
* @return void
*/
void arrows_write_basis(long offset)
{
graphics_write_line (offset + 0, offset + 1);
graphics_write_line (offset + 2, offset + 3);
graphics_write_line (offset + 4, offset + 5);
}

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/*
* Gem-graph OpenGL experiments
*
* Desc: GL functions
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../../include/base.h"
#include "../../include/ui.h"
#include "../../include/graphics.h"
#include "../../include/arrows.h"
#include "../../include/grid.h"
#include "../../include/shaders_study.h"
// #define VERTEX_SHADER_FILE "src/shaders/shader.vert"
// #define FRAG_SHADER_FILE "src/shaders/shader.frag"
static GLfloat *buffer_vertex_origin = NULL;
static GLfloat *buffer_colors_origin = NULL;
static GLuint *buffer_lines_origin = NULL;
static GLuint *buffer_plans_origin = NULL;
static volatile int buffer_vertex_size = 0;
static volatile int buffer_lines_size = 0;
static volatile int buffer_colors_size = 0;
static volatile int buffer_plans_size = 0;
/*
* Dynamic array of ptrs to dynamically allocated gl_area_entry
*/
struct gl_area_entry **gl_area_array = NULL;
/*
* Prints verbose human-readable debug messages
*
* @param source, XXX
* type, XXX
* id, XXX
* severity, XXX
* length, XXX
* msg, XXX
* data, XXX
*
* @return void
*/
static void graphics_debug_callback(GLenum source, GLenum type, GLuint id,
GLenum severity, GLsizei length,
const GLchar *msg, const void *data)
{
const char *errsource;
const char *errtype;
const char *errseverity;
const GLubyte *string;
GLenum code;
switch (source) {
case GL_DEBUG_SOURCE_API: errsource = "API"; break;
case GL_DEBUG_SOURCE_WINDOW_SYSTEM: errsource = "WINDOW SYSTEM"; break;
case GL_DEBUG_SOURCE_SHADER_COMPILER: errsource = "SHADER COMPILER"; break;
case GL_DEBUG_SOURCE_THIRD_PARTY: errsource = "THIRD PARTY"; break;
case GL_DEBUG_SOURCE_APPLICATION: errsource = "APPLICATION"; break;
case GL_DEBUG_SOURCE_OTHER: errsource = "UNKNOWN"; break;
default: errsource = "UNKNOWN"; break;
}
switch (type) {
case GL_DEBUG_TYPE_ERROR: errtype = "ERROR"; break;
case GL_DEBUG_TYPE_DEPRECATED_BEHAVIOR: errtype = "DEPRECATED BEHAVIOR";break;
case GL_DEBUG_TYPE_UNDEFINED_BEHAVIOR: errtype = "UNDEFINED BEHAVIOR"; break;
case GL_DEBUG_TYPE_PORTABILITY: errtype = "PORTABILITY"; break;
case GL_DEBUG_TYPE_PERFORMANCE: errtype = "PERFORMANCE"; break;
case GL_DEBUG_TYPE_OTHER: errtype = "OTHER"; break;
case GL_DEBUG_TYPE_MARKER: errtype = "MARKER"; break;
default: errtype = "UNKNOWN"; break;
}
switch (severity) {
case GL_DEBUG_SEVERITY_HIGH: errseverity = "CRITICAL"; break;
case GL_DEBUG_SEVERITY_MEDIUM: errseverity = "ERROR"; break;
case GL_DEBUG_SEVERITY_LOW: errseverity = "WARNING"; break;
case GL_DEBUG_SEVERITY_NOTIFICATION: errseverity = "INFO"; break;
default: errseverity = "UNKNOWN"; break;
}
code = glGetError();
string = gluErrorString(code);
printf("[%s] %s (%s) from %s: %s\n",
errseverity, string, errtype, errsource, msg);
}
/* -------------------------------------------------------------------------- */
/*
* void graphics_erase_line (GLuint a, GLuint b){} TODO and to use ?
* As, in this version only lines can be erased,
* similar functions for vertex and plans are not considered. But ?...
*/
/*
* Writes values to describe a line from a to b into the line buffer
*
* @param coords GLuint (a,b)
*
* @return void
*/
void graphics_write_line (GLuint a, GLuint b)
{
buffer_lines_origin = g_realloc (buffer_lines_origin,
(buffer_lines_size + 2) * sizeof(GLuint));
assert (buffer_lines_origin);
buffer_lines_origin[buffer_lines_size + 0] = a;
buffer_lines_origin[buffer_lines_size + 1] = b;
buffer_lines_size += 2;
}
/*
* Writes values to describe a vertex at (x,y,z) into the vertex buffer
*
* @param coords GLfloat(x,y,z)
*
* @return void
*/
void graphics_write_vertex (GLfloat x, GLfloat y, GLfloat z)
{
buffer_vertex_origin = g_realloc (buffer_vertex_origin,
(buffer_vertex_size + 3) * sizeof(GLfloat));
assert (buffer_vertex_origin);
buffer_vertex_origin[buffer_vertex_size + 0] = x;
buffer_vertex_origin[buffer_vertex_size + 1] = y;
buffer_vertex_origin[buffer_vertex_size + 2] = z;
buffer_vertex_size += 3;
//printf("Created vertex (%f,%f,%f), size is %d\n", x,y,z, buffer_vertex_size);
}
/*
* Writes values to describe a color (r,g,b) into the color buffer
*
* @param color GLfloat(r,g,b)
*
* @return void
*/
void graphics_write_color (GLfloat r, GLfloat g, GLfloat b)
{
buffer_colors_origin = g_realloc (buffer_colors_origin,
(buffer_colors_size + 3) * sizeof(GLfloat));
assert (buffer_colors_origin);
buffer_colors_origin[buffer_colors_size + 0] = r;
buffer_colors_origin[buffer_colors_size + 1] = g;
buffer_colors_origin[buffer_colors_size + 2] = b;
buffer_colors_size += 3;
}
/*
* Writes values to describe an (a,b,c) plan (triangle) into the plan buffer
*
* @param coords GLuint (a,b,c)
*
* @return void
*/
void graphics_write_plan (GLuint a, GLuint b, GLuint c)
{
buffer_plans_origin = g_realloc (buffer_plans_origin,
(buffer_plans_size + 3) * sizeof(GLuint));
assert (buffer_plans_origin);
buffer_plans_origin[buffer_plans_size + 0] = a;
buffer_plans_origin[buffer_plans_size + 1] = b;
buffer_plans_origin[buffer_plans_size + 2] = c;
buffer_plans_size += 3;
}
/* Initializes the buffer of a gl_area
* Calls according to the user preferences
* @param gl_area, ptr to the gl_area widget
* @return void
*/
void graphics_init_buffers(const void *gl_area)
{
struct gl_area_entry *entry;
entry = graphics_find_glarea_from_ptr(gl_area);
//XXX
main_test_graphics ();
GLuint vao, vertex_buffer, color_buffer;
glGenBuffers(1, &vertex_buffer);
glBindBuffer(GL_ARRAY_BUFFER, vertex_buffer);
glBufferData(GL_ARRAY_BUFFER, buffer_vertex_size * sizeof(buffer_vertex_origin[0]), buffer_vertex_origin, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
// colors
glGenBuffers(1, &color_buffer);
glBindBuffer(GL_ARRAY_BUFFER, color_buffer);
glBufferData(GL_ARRAY_BUFFER, buffer_colors_size * sizeof(buffer_colors_origin[0]), buffer_colors_origin, GL_STATIC_DRAW);
glBindBuffer(GL_ARRAY_BUFFER, 0);
// We only use one VAO, so we always keep it bound
glGenVertexArrays(1, &vao);
glBindVertexArray(vao);
if(entry != NULL) {
entry->vao = vao;
entry->position_buffer = vertex_buffer;
entry->color_buffer = color_buffer;
}
}
/* 28-9-2023 Je déplace la fonction : "bool graphics_init_shaders(const void *gl_area)"
* dans un nouveau fichier "shaders_study.c" pour alléger graphics.c */
/*
* Draws the current buffer to a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return void
*/
void graphics_draw(const void *gl_area)
{
float m[16];
float v[16];
float p[16];
struct gl_area_entry *entry;
entry = graphics_find_glarea_from_ptr(gl_area);
if (entry == NULL) {
errno = EFAULT;
perror("gl_area_array entry not found");
return;
}
/* Compute the model view projection matrix using the
* rotation angles specified through the GtkRange widgets
*/
compute_mvp(p,
rotation_angles[X_AXIS],
rotation_angles[Y_AXIS],
rotation_angles[Z_AXIS]);
compute_i(m);
compute_i(v);
/* Use our shaders */
glUseProgram(entry->program);
// if (pref_style_mix_colors == 0)
glClearColor(0, 0, 0, 0.4f);
glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
/* Update the "mvp" matrix we use in the shader */
glUniformMatrix4fv(entry->m, 1, GL_FALSE, &m[0]);
glUniformMatrix4fv(entry->v, 1, GL_FALSE, &v[0]);
glUniformMatrix4fv(entry->p, 1, GL_FALSE, &p[0]);
/* Use the vertices in our buffer */
glEnableVertexAttribArray(0);
glBindBuffer(GL_ARRAY_BUFFER, entry->position_buffer);
glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, 0,(void*)0);
// couleurs
glEnableVertexAttribArray(1);
glBindBuffer(GL_ARRAY_BUFFER, entry->color_buffer);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0,(void*)0);
//glEnable(GL_DEPTH_TEST);
glDrawElements(GL_LINES, buffer_lines_size, GL_UNSIGNED_INT, buffer_lines_origin);
glDrawElements(GL_TRIANGLES, buffer_plans_size, GL_UNSIGNED_INT, buffer_plans_origin);
/* We finished using the buffers and program */
glDisableVertexAttribArray(0);
glDisableVertexAttribArray(1);
glBindBuffer(GL_ARRAY_BUFFER, 0);
glUseProgram(0);
glFlush();
}
/* -------------------------------------------------------------------------- */
/*
* Find gl_area_entry from a gl_area ptr
*
* @param gl_area, ptr to the gl_area widget
*
*
* @return entry ptr
*/
struct gl_area_entry *graphics_find_glarea_from_ptr(const char *name)
{
struct gl_area_entry **cur;
// Check uninitialized and quit
if (gl_area_array == NULL) return NULL;
// Seek in array
cur = gl_area_array;
while(*cur) {
if (strncmp((*cur)->name, name, sizeof((*cur)->name)) == 0) return *cur;
cur++;
}
// Nothing found
return NULL;
}
/*
* Initializes a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if initialized
*/
bool graphics_init(const char *gl_area)
{
short array_size;
glEnable(GL_DEBUG_OUTPUT);
glEnable(GL_DEBUG_OUTPUT_SYNCHRONOUS);
glEnable(GL_MULTISAMPLE);
// Check if not already initialized
if (graphics_find_glarea_from_ptr(gl_area)) {
errno = EEXIST;
perror("gl_area_array already exists");
return false;
}
// Get actual array size
array_size = gl_area_size();
// If it does not exist, allocs it
if (gl_area_array == NULL) {
gl_area_array = g_malloc0(sizeof(struct gl_area_entry *) * 2);
assert(gl_area_array);
// If it does exist, g_reallocs it
} else {
gl_area_array = g_realloc(gl_area_array,
(array_size + 1)
* sizeof(struct gl_area_entry *));
assert (gl_area_array);
if (gl_area_array == NULL) {
perror("Not enough memory to allocate gl_area_array");
return false;
}
explicit_bzero(gl_area_array + array_size * sizeof(struct gl_area_entry *),
sizeof(struct gl_area_entry *));
}
// Alloc new entry
gl_area_array[array_size] = g_malloc0(sizeof(struct gl_area_entry));
assert(gl_area_array[array_size]);
strcpy(gl_area_array[array_size]->name, gl_area);
if (!graphics_init_shaders(gl_area)) return false;
graphics_init_buffers(gl_area);
glDebugMessageCallback(graphics_debug_callback, NULL);
return true;
}
/*
* Shutdowns a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if success
*/
bool graphics_shutdown(const void *gl_area)
{
struct gl_area_entry *entry;
entry = graphics_find_glarea_from_ptr(gl_area);
if (entry == NULL) {
errno = EFAULT;
perror("gl_area_array entry not found");
return false;
}
glDeleteBuffers(1, &entry->position_buffer);
glDeleteBuffers(1, &entry->color_buffer);
glDeleteProgram(entry->program);
// Liberate
g_free(entry);
entry = NULL;
gl_area_array = g_realloc(gl_area_array,
(gl_area_size())
* sizeof(struct gl_area_entry *));
assert (gl_area_array || !gl_area_size());
g_free(buffer_vertex_origin);
g_free(buffer_colors_origin);
g_free(buffer_lines_origin);
g_free(buffer_plans_origin);
return true;
}
/*
* Prints the arrows[] array
*
* For each arrow the following parameters are displayed :
* - rank in the array
* - weight (or load)
* - coordinates in space (site, x, y, z)
*/
static void show_arrows_array (GLuint *arrows, int arrows_nb, int x, int y, int z)
{
printf("\n [rank] load | site x y z");
for (int i = 0; i < arrows_nb; i++)
printf("\n [%4d] = %2d | %2d, %2d, %2d, %2d", i, *(arrows + i * 5 + 0),\
*(arrows + i * 5 + 1), *(arrows + i * 5 + 2), *(arrows + i * 5 + 3), *(arrows + i * 5 + 4));
if (arrows_nb == 0) printf("\n [NULL] ---- | ---- --- --- ---");
}
/*
* Prints the initial user choices :
* - space dimension size and appearance (grids)
* - arrows[] array
* NB The space may be empty or saturated with arrows or any value in between
* Only one arrow per possible coordinates with a load max equal to ? TODO
*/
static void show_user_choices(GLuint *arrows, int arrows_nb,
int space_size_x, int space_size_y, int space_size_z,
int prefer, int show_all)
{
printf("model + user constraints :\tspace size x,y,z = %d,%d,%d\t", space_size_x, space_size_y, space_size_z);
if (prefer == 0) printf("prefer = %d <> show all grids", prefer);
if (prefer == 1) printf("prefer = %d <> show no grid", prefer);
if (prefer > 1) printf("show grids according rule (%d)", prefer);
if (show_all) printf("\n\
initial arrows data arrows_nb = %d", arrows_nb);
show_arrows_array (arrows, arrows_nb, space_size_x, space_size_y, space_size_z);
}
/*
* Prints the result of the function set_arrow()
* and indicates the reasons of the choice (call) this function makes (see this function)
*/
static void show_user_action(GLuint *arrows, int arrows_nb, int address, int requested_weight,
int current_weight, int site, int x, int y, int z)
{
if (address == -1 && requested_weight > 0) {printf("no such arrow found (address == -1)\n\
requested weight == %d => CREATE", requested_weight); return;}
if (address >= 0 && requested_weight == 0) {printf("arrow (%d,%d,%d,%d) found at address %d; current_weight = %d;\n\
requested weight == %d => ERASE",\
arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight, requested_weight); return;}
if (address >= 0 && current_weight != requested_weight) {printf("arrow (%d,%d,%d,%d) found at address %d; current_weight = %d;\n\
requested weight != current weight => MODIFY",\
arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5, current_weight); return;}
if (address >= 0 && current_weight == requested_weight){printf("arrow (%d,%d,%d,%d) found at address %d;\n\
requested_weight == current_weight => END",\
arrows[address + 1], arrows[address + 2], arrows[address + 3], arrows[address + 4], address/5); return;}
if (address == -1 && requested_weight == 0) {printf("no such arrow found (address == -1)\n\
requested weight == 0 => END"); return;}
}
/*
* Prints vertex and lines buffers_states (sizes) at major steps and at the end of a session.
* Major steps are creation of grids and creation of arrows
* Arithmetic verification is provided at each step
*/
static void show_buffers_states(int space_X, int space_Y, int space_Z, int arrows_nb,
int offset_after_grids, int buffer_vertex_size,
int buffer_lines_size_after_cubes, int buffer_lines_size)
{
int offset_after_arrows = buffer_vertex_size / 3, difference = offset_after_arrows - offset_after_grids;
printf("\n - - - - - - - - - - - - - - - - - - - - - - - - - - - -");
printf("\n buffer_vertex_offset_after grids = %6d\t%6d = (x+1)*(y+1)*(z+1); <--> (x,y,z = %d,%d,%d)",\
offset_after_grids, (space_X + 1)*(space_Y + 1)*(space_Z + 1), space_X, space_Y, space_Z);
printf("\n buffer_vertex_offset_after arrows = %6d\t%6d = %d + %d; <--> %d = 12 x %d (there are %d cubes)",\
offset_after_arrows, offset_after_arrows, offset_after_grids,\
difference, difference, difference / 12, difference / 12);
printf("\n buffer_lines_offset after cubes = %6d\t%6d = 2 * (%dx%d + %dx%d + %dx%d); <--> 2 * (x*y + x*z + y*z)",\
buffer_lines_size_after_cubes, ((space_X+1) * (space_Y+1) + (space_X+1) * (space_Z+1) + (space_Y+1) * (space_Z+1)) * 2,
space_X+1, space_Y+1, space_X+1, space_Z+1, space_Y+1, space_Z+1);
printf("\n buffer_lines_offset after arrows = %6d\t%6d = %d + %d; <--> %d = (3 + 4) x 2 x %d (arrows_nb = %d)\n",\
buffer_lines_size, buffer_lines_size, buffer_lines_size_after_cubes,\
buffer_lines_size - buffer_lines_size_after_cubes, arrows_nb * 14, arrows_nb, arrows_nb);
}
/*
* Assigns a new weight to the arrow at address (address)
*/
static int rewrite_arrow (GLuint *arrows, int arrows_nb, int address, int weight, int site, int x, int y, int z)
{
*(arrows + address * 5 + 0) = weight;
show_arrows_array (arrows, arrows_nb, x, y, z);
return arrows_nb;
}
/*
* Creates a new arrow at address (address)
* NB Weights (or loads) are NOT added
*/
static int create_arrow (GLuint *arrows, int arrows_nb, int weight, int site, int x, int y, int z)
{
// buffer_lines_size += 14;
buffer_lines_origin = g_realloc(buffer_lines_origin, buffer_lines_size * 2 * sizeof(GLuint));
assert (buffer_lines_origin); assert (buffer_lines_size);
*(arrows + arrows_nb * 5 + 0) = weight;
*(arrows + arrows_nb * 5 + 1) = site;
*(arrows + arrows_nb * 5 + 2) = x;
*(arrows + arrows_nb * 5 + 3) = y;
*(arrows + arrows_nb * 5 + 4) = z;
arrows_nb ++;
show_arrows_array (arrows, arrows_nb, x, y, z);
return arrows_nb;
}
/*
* Removes an arrow at address (address)
*/
static int erase_arrow (GLuint *arrows, int arrows_nb, int address, int site, int x, int y, int z)
{
arrows_nb --;
if (arrows_nb > 0)
{
*(arrows + address + 0) = *(arrows + arrows_nb * 5 + 0);
*(arrows + address + 1) = *(arrows + arrows_nb * 5 + 1);
*(arrows + address + 2) = *(arrows + arrows_nb * 5 + 2);
*(arrows + address + 3) = *(arrows + arrows_nb * 5 + 3);
*(arrows + address + 4) = *(arrows + arrows_nb * 5 + 4);
}
buffer_lines_origin = g_realloc(buffer_lines_origin, buffer_lines_size * sizeof(GLuint));
show_arrows_array (arrows, arrows_nb, x, y, z);
return arrows_nb;
}
/*
* Calls one of the functions create_arrow(), erase_arrow() or rewrite_arrow()
* according to requested weight and address (coord site, x, y, z)
*
* May not call any of these three functions if :
* - Current_weight of an arrow located at the requested address == requested_weight
* - No arrow was found at the requested addres AND current_weight == requested_weight
*/
static int set_arrow (GLuint *arrows, int arrows_nb, int requested_weight, int site, int x, int y, int z)
{
int address = -1, current_weight = -1;
for (int i = 0; i < arrows_nb; i++) {
if ((site == *(arrows + i * 5 + 1))
&& (x == *(arrows + i * 5 + 2))
&& (y == *(arrows + i * 5 + 3))
&& (z == *(arrows + i * 5 + 4)))
{
address = i * 5;
current_weight = *(arrows + i * 5 + 0);
break;
}
}
printf("\nset_arrow() invoked with requested weight = %d > ", requested_weight);
show_user_action(arrows, arrows_nb, address, requested_weight, current_weight, site, x, y, z);
if (address == -1 && requested_weight > 0)
return create_arrow (arrows, arrows_nb, requested_weight, site, x, y, z);
if (address >= 0 && requested_weight == 0)
return erase_arrow (arrows, arrows_nb, address, site, x, y, z);
if (address >= 0 && current_weight != requested_weight)
return rewrite_arrow (arrows, arrows_nb, address/5, requested_weight, site, x, y, z);
if (address >= 0 && current_weight == requested_weight) show_arrows_array(arrows, arrows_nb, x, y, z);
if (address == -1 && requested_weight == 0) show_arrows_array(arrows, arrows_nb, x, y, z);
return arrows_nb;
}
/*
* Init space and arrows (= initial state)
* and allows ulterior creations, suppressions or modifications of the arrows[] array
*
* Draws space and arrows
*/
void main_test_graphics (void)
{
// assert : space dimensions (x,y,z) > 0 TODO NOT checked before init
// assert : arrows localization within space and sites TODO NOT checked when invoking set_arrow()
// assert : no more than one arrow per address TODO NOT checked before init
// notify : weights are replaced, NOT added (could be !) TODO
int space_X = 3, space_Y = 3, space_Z = 3;
int pref_show_grids = 0; // 0, 1, 2, 3, 5, 6, 10, 15, 30, etc
// xyz, 0, x, y, z, xy, xz, yz, xyz
GLuint arrows[] = {
1, 0, 0, 0, 0,
1, 1, 1, 0, 0,
1, 2, 2, 0, 0,
1, 3, 0, 2, 0,
// load, site, x, y, z
};
int arrows_nb = sizeof(arrows) / sizeof(arrows[0]) / 5;
show_user_choices(arrows, arrows_nb, space_X, space_Y, space_Z, pref_show_grids, 1);
/* GRID */
grid_write_intersections (space_X, space_Y, space_Z);
if (pref_show_grids % 2 == 0) grid_write_x (space_X, space_Y, space_Z);
if (pref_show_grids % 3 == 0) grid_write_y (space_X, space_Y, space_Z);
if (pref_show_grids % 5 == 0) grid_write_z (space_X, space_Y, space_Z);
if (pref_show_grids > 0) grid_write_ridges (space_X, space_Y, space_Z);
int offset_after_grids = buffer_vertex_size / 3;
int buffer_lines_size_after_cubes = buffer_lines_size;
int offset_up_to_this_cube_coords = 0, x, y, z;
/* ARROWS */
/* NB The 12 vertices required to draw 6 arrows in each cube
* are always defined (whether arrows are drawn or not). */
arrows_write_terminations (space_X, space_Y, space_Z);
arrows_nb = set_arrow (arrows, arrows_nb, 0, 0, 2, 0, 0);
arrows_nb = set_arrow (arrows, arrows_nb, 0, 1, 1, 0, 0);
arrows_nb = set_arrow (arrows, arrows_nb, 0, 1, 3, 0, 0);
arrows_nb = set_arrow (arrows, arrows_nb, 1, 1, 2, 2, 0);
arrows_nb = set_arrow (arrows, arrows_nb, 1, 3, 0, 2, 0);
int weight = 0, site = 0,
stx = space_Z * space_Y, sty = space_Z, stz = 1, arrow_offset = 0;
for (int i = 0; i < arrows_nb; i++) {
weight = arrows[i * 5 + 0];
site = arrows[i * 5 + 1];
x = arrows[i * 5 + 2];
y = arrows[i * 5 + 3];
z = arrows[i * 5 + 4];
offset_up_to_this_cube_coords = 12 * (stx * x + sty * y + stz * z);
arrow_offset = offset_after_grids + offset_up_to_this_cube_coords;
arrows_write_basis (arrow_offset);
switch(site){
case EAST: case WEST: write_arrow_lines_east_west (arrow_offset, weight, site); break;
case ZENITH: case NADIR: write_arrow_lines_zenith_nadir (arrow_offset, weight, site); break;
case SOUTH: case NORTH: write_arrow_lines_south_north (arrow_offset, weight, site); break;
default: break;
}
}
show_buffers_states(space_X, space_Y, space_Z, arrows_nb,
offset_after_grids, buffer_vertex_size,
buffer_lines_size_after_cubes, buffer_lines_size);
}

View File

@ -1,157 +0,0 @@
/*
* Gem-graph
*
* Desc: OpenGL grid functions
*
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* aint with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../../include/base.h"
#include "../../include/graphics.h"
/*
* Writes grid lines intersections to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_intersections (long x, long y, long z)
{
float i, j, k, vx, vy, vz, max = fmax(x, y);
max = fmax(max, z);
for (i = 0; i <= x; i++)
for (j = 0; j <= y; j++)
for (k = 0; k <= z; k++){
vx = (2 * i / x - 1) * x / max;
vy = (2 * j / y - 1) * y / max;
vz = (2 * k / z - 1) * z / max;
graphics_write_vertex (vx, vy, vz);
graphics_write_color (0.64f,0.64f,0.64f);
};
}
/*
* Writes grid ridges to vertex and color buffers
*
* @param coords long (x,y,z), step_x, step_y, step_z
*
* @return void
*/
void grid_write_ridges (long x,
long y,
long z)
{
long step_x = (z + 1) * (y + 1),
step_y = z + 1,
step_z = 1;
long r_000 = step_z * 0 + step_y * 0 + step_x * 0,
r_100 = step_z * 0 + step_y * 0 + step_x * x,
r_010 = step_z * 0 + step_y * y + step_x * 0,
r_001 = step_z * z + step_y * 0 + step_x * 0,
r_011 = step_z * z + step_y * y + step_x * 0,
r_101 = step_z * z + step_y * 0 + step_x * x,
r_110 = step_z * 0 + step_y * y + step_x * x,
r_111 = step_z * z + step_y * y + step_x * x;
graphics_write_line (r_000, r_100); graphics_write_line (r_111, r_011);
graphics_write_line (r_000, r_010); graphics_write_line (r_111, r_101);
graphics_write_line (r_000, r_001); graphics_write_line (r_111, r_110);
graphics_write_line (r_100, r_110); graphics_write_line (r_011, r_001);
graphics_write_line (r_100, r_101); graphics_write_line (r_011, r_010);
graphics_write_line (r_010, r_110); graphics_write_line (r_101, r_001);
}
/*
* Writes grid lines for x axis to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_x (long x, long y, long z)
{
long step_z = 1,
step_y = z + 1,
step_x = (z + 1) * (y + 1);
x ++; y ++; z ++;
float calcul = 0;
for (int u = 0; u < y; u ++){
for (int w = 0; w < x; w ++){
calcul = step_x * w + step_y * u;
graphics_write_line (calcul, calcul + step_y - step_z);
}
}
}
/*
* Writes grid lines for y axis to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_y (long x, long y, long z)
{
long step_z = 1,
step_y = z + 1,
step_x = (z + 1) * (y + 1);
x ++; y ++; z ++;
float calcul = 0;
for (int u = 0; u < z; u++) {
for (int w = 0; w < x; w ++){
calcul = step_x * w + step_z * u;
graphics_write_line (calcul, calcul + step_x - step_y);
}
}
}
/*
* Writes grid lines for z axis to vertex and color buffers
*
* @param coords long (x,y,z)
*
* @return void
*/
void grid_write_z (long x, long y, long z)
{
long step_z = 1,
step_y = z + 1,
step_x = (z + 1) * (y + 1);
x ++; y ++; z ++;
float calcul = 0;
for (int u = 0; u < z; u ++){
for (int w = 0; w < y; w ++){
calcul = step_y * w + step_z * u;
graphics_write_line (calcul, calcul + step_x * (x - 1));
}
}
}

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@ -1,157 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: GL functions
*
* Copyright (C) 2023 Jean Sirmai <jean@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../../include/base.h"
#include "../../include/ui.h"
#include "../../include/graphics.h"
#include "../../include/shaders_study.h"
#include "../../include/arrows.h"
#include "../../include/grid.h"
#define VERTEX_SHADER_FILE "src/shaders/shader.vert"
#define FRAG_SHADER_FILE "src/shaders/shader.frag"
// Que fait l'instruction suivante (ligne 397 de graphics.c)
// dans "bool graphics_init(const char *gl_area)" ?
//
// if (!graphics_init_shaders(gl_area)) return false;
//
// Et comment et pourquoi cette structure "gl_area_array" ?
// (Dynamic array of ptrs to dynamically allocated gl_area_entry)
//
// struct gl_area_entry **gl_area_array = NULL;
/*
* Initializes the shaders of a gl_area and link them to a program
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if initialized
*/
bool graphics_init_shaders(const void *gl_area)
{
char *vertex_shader;
char *fragment_shader;
struct gl_area_entry *entry;
int status;
GLuint vertex, fragment;
GLuint program = 0;
GLuint m = 0;
GLuint v = 0;
GLuint p = 0;
entry = graphics_find_glarea_from_ptr(gl_area);
if (entry == NULL) {
errno = EFAULT;
perror("gl_area_array entry not found");
return false;
}
// Load vertex shader file
vertex_shader = read_file(VERTEX_SHADER_FILE);
if (vertex_shader == NULL)
return false;
vertex = create_shader(GL_VERTEX_SHADER, vertex_shader);
// ! WARNING ! l'instruction suivante (ou un autre 'free') a pu provoquer un 'double free' (Abandon)
if(vertex == 0) {
entry->program = 0;
g_free(vertex_shader);
return false;
}
// Load fragment shader file
fragment_shader = read_file(FRAG_SHADER_FILE);
if (fragment_shader == NULL)
return false;
fragment = create_shader(GL_FRAGMENT_SHADER, fragment_shader);
if(fragment == 0) {
glDeleteShader(vertex);
entry->program = 0;
g_free(vertex_shader);
g_free(fragment_shader);
return false;
}
// Link shaders to program
program = glCreateProgram();
glAttachShader(program, vertex);
glAttachShader(program, fragment);
glLinkProgram(program);
glGetProgramiv(program, GL_LINK_STATUS, &status);
if(status == GL_FALSE) {
int log_len;
char *buffer;
glGetProgramiv(program, GL_INFO_LOG_LENGTH, &log_len);
buffer = g_malloc(log_len + 1);
assert(buffer);
glGetProgramInfoLog(program, log_len, NULL, buffer);
g_warning("Linking failure:\n%s", buffer);
g_free(buffer);
glDeleteProgram(program);
program = 0;
glDeleteShader(vertex);
glDeleteShader(fragment);
g_free(vertex_shader);
g_free(fragment_shader);
return false;
}
/* Get the location of the "mvp" uniform */
m = glGetUniformLocation(program, "model_matrix");
v = glGetUniformLocation(program, "view_matrix");
p = glGetUniformLocation(program, "projection_matrix");
glDetachShader(program, vertex);
glDetachShader(program, fragment);
glDeleteShader(vertex);
glDeleteShader(fragment);
entry->program = program;
entry->m = m;
entry->v = v;
entry->p = p;
g_free(vertex_shader);
g_free(fragment_shader);
return true;
}

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@ -1,50 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: Main file
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <gtk-4.0/gtk/gtk.h>
#include "../include/base.h"
#include "../include/ui.h"
/* -------------------------------------------------------------------------- */
int main(int argc, char **argv)
{
g_autoptr(GemGraphClientApplication) app = NULL;
int res;
// bindtextdomain (GETTEXT_PACKAGE, LOCALEDIR);
// bind_textdomain_codeset (GETTEXT_PACKAGE, "UTF-8");
// textdomain (GETTEXT_PACKAGE);
app = gem_graph_client_application_new("org.alec.gemgraph",
G_APPLICATION_DEFAULT_FLAGS);
res = g_application_run(G_APPLICATION(app), argc, argv);
return res;
}

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@ -1,9 +0,0 @@
#version 330 core
in vec4 color;
out vec4 out_frag_color;
void main(void)
{
out_frag_color = color;
}

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@ -1,20 +0,0 @@
#version 330 core
uniform mat4 projection_matrix;
uniform mat4 model_matrix;
uniform mat4 view_matrix;
layout(location=0) in vec3 in_position;
layout(location=1) in vec3 in_color;
out vec4 color;
void main(void)
{
float zoom = 1.5f, chrominance = 1, luminance = 1;
gl_Position =
projection_matrix * view_matrix * model_matrix * vec4(in_position, zoom);
color = vec4 (chrominance * in_color.rgb, luminance);
}
// https://learnopengl.com/Getting-started/Shaders

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@ -1,99 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: User interface functions
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include "../../include/base.h"
#include "../../include/ui.h"
struct _GemGraphClientApplication
{
GtkApplication parent_instance;
};
G_DEFINE_TYPE (GemGraphClientApplication,
gem_graph_client_application,
GTK_TYPE_APPLICATION)
static GemGraphClientApplication *application;
/* -------------------------------------------------------------------------- */
/*
* Window actual presentation on screen
*
*/
static void gem_graph_client_application_activate(GApplication *app)
{
GtkWindow *window;
g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(app));
window = gtk_application_get_active_window(GTK_APPLICATION (app));
if (window == NULL)
window = g_object_new(GEM_GRAPH_CLIENT_TYPE_WINDOW,
"application", app,
NULL);
gtk_window_present(window);
}
/*
* Action records are registered here
*
*/
static void gem_graph_client_application_init(GemGraphClientApplication *self)
{
g_action_map_add_action_entries(G_ACTION_MAP(self),
app_actions,
G_N_ELEMENTS(app_actions),
self);
// Setup shortcuts
gtk_application_set_accels_for_action(GTK_APPLICATION(self),
"app.quit",
(const char *[]) { "<primary>q", NULL });
application = self;
}
/* -------------------------------------------------------------------------- */
static void gem_graph_client_application_class_init(
GemGraphClientApplicationClass *klass)
{
GApplicationClass *app_class = G_APPLICATION_CLASS(klass);
app_class->activate = gem_graph_client_application_activate;
}
GemGraphClientApplication *gem_graph_client_application_new(
const char *application_id,
GApplicationFlags flags)
{
g_return_val_if_fail(application_id != NULL, NULL);
return g_object_new(GEM_GRAPH_CLIENT_TYPE_APPLICATION,
"application-id", application_id,
"flags", flags,
NULL);
}

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@ -1,37 +0,0 @@
<?xml version='1.0' encoding='UTF-8'?>
<!-- Created with Cambalache 0.14.0 -->
<interface>
<!-- interface-name gem-graph.ui -->
<requires lib="gtk" version="4.6"/>
<template class="GemGraphClientWindow" parent="GtkApplicationWindow">
<property name="icon-name">application-x-executable</property>
<property name="title">Bac à sable</property>
<child>
<object class="GtkBox">
<child>
<object class="GtkBox">
<child>
<object class="GtkGLArea" id="run_glarea"/>
</child>
</object>
</child>
<child>
<object class="GtkBox" id="run_controls">
<property name="margin-bottom">50</property>
<property name="margin-top">50</property>
<property name="orientation">horizontal</property>
</object>
</child>
<child>
<object class="GtkBox" id="glarea_controls"/>
</child>
</object>
</child>
<child type="titlebar">
<object class="GtkHeaderBar" id="main_titlebar"/>
</child>
<style>
<class name="devel"/>
</style>
</template>
</interface>

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@ -1,115 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: User interface functions
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdio.h>
#include "../../include/base.h"
#include "../../include/graphics.h"
#include "../../include/ui.h"
/* -------------------------------------------------------------------------- */
/*
* Graphical/view related events
*/
void on_axis_value_change(GtkAdjustment *adjustment, gpointer data)
{
// XXX set selon l'id de la GLArea
int axis = GPOINTER_TO_INT(data);
g_assert(axis >= 0 && axis < N_AXIS);
/* Update the rotation angle */
rotation_angles[axis] = gtk_adjustment_get_value(adjustment); //XXX selon widget
/* Update the contents of the GL drawing area */
gtk_widget_queue_draw(gl_area);
}
gboolean on_render(GtkGLArea *area, GdkGLContext *context)
{
if(gtk_gl_area_get_error(area) != NULL)
return false;
graphics_draw(gtk_widget_get_name(GTK_WIDGET(area)));
return true;
}
/* We need to set up our state when we realize the GtkGLArea widget */
void on_realize(GtkWidget *widget)
{
gtk_gl_area_make_current(GTK_GL_AREA(widget));
if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL)
return;
if (graphics_init(gtk_widget_get_name(widget)) == false) {
printf("Failed to allocate GLArea !");
}
}
/* We should tear down the state when unrealizing */
void on_unrealize(GtkWidget *widget)
{
gtk_gl_area_make_current(GTK_GL_AREA(widget));
if(gtk_gl_area_get_error(GTK_GL_AREA(widget)) != NULL)
return;
if (graphics_shutdown(gtk_widget_get_name(widget))) {
printf("Failed to allocate GLArea !");
}
}
void on_quit_action(GSimpleAction *action,
GVariant *parameter,
gpointer user_data)
{
GemGraphClientApplication *self = user_data;
g_assert(GEM_GRAPH_CLIENT_IS_APPLICATION(self));
g_application_quit(G_APPLICATION(self));
}
void on_close_window(GtkWidget *widget)
{
/* Reset the state */
gl_area = NULL;
//XXX unset selon l'id de la GLArea
rotation_angles[X_AXIS] = 0.0;
rotation_angles[Y_AXIS] = 0.0;
rotation_angles[Z_AXIS] = 0.0;
}
/* -------------------------------------------------------------------------- */

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@ -1,169 +0,0 @@
/*
* Gem-graph OpenGL experiments
*
* Desc: User interface functions
*
* Copyright (C) 2023 Arthur Menges <arthur.menges@a-lec.org>
* Copyright (C) 2023 Adrien Bourmault <neox@a-lec.org>
*
* This file is part of Gem-graph.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero 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 Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <unistd.h>
#include <gtk-4.0/gtk/gtk.h>
#include <glib-2.0/glib.h>
#include "../../include/base.h"
#include "../../include/ui.h"
/* -------------------------------------------------------------------------- */
float rotation_angles[N_AXIS] = { 0.0 }; // Rotation angles on each axis
GtkWidget *gl_area = NULL;
static GemGraphClientWindow *window;
/* -------------------------------------------------------------------------- */
struct _GemGraphClientWindow
{
GtkApplicationWindow parent_instance;
/* Template widgets */
GtkHeaderBar *main_titlebar;
GtkGLArea *run_glarea;
GtkBox *run_controls;
};
G_DEFINE_FINAL_TYPE (GemGraphClientWindow,
gem_graph_client_window,
GTK_TYPE_APPLICATION_WINDOW)
static void gem_graph_client_window_class_init(GemGraphClientWindowClass *klass)
{
gchar *contents;
gsize len;
GError *err;
GBytes *bytes;
GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(klass);
if (g_file_get_contents("src/ui/bac_a_sable.ui", &contents, &len, &err) == FALSE)
g_error("error reading bac_a_sable.ui: %s", err->message);
bytes = g_bytes_new_take(contents, len);
gtk_widget_class_set_template(GTK_WIDGET_CLASS(klass), bytes);
gtk_widget_class_bind_template_child(widget_class,
GemGraphClientWindow,
main_titlebar);
gtk_widget_class_bind_template_child(widget_class,
GemGraphClientWindow,
run_glarea);
gtk_widget_class_bind_template_child(widget_class,
GemGraphClientWindow,
run_controls);
}
static void gem_graph_client_window_init(GemGraphClientWindow *self)
{
gtk_widget_init_template(GTK_WIDGET(self));
window = self;
// Setup GLArea
ui_setup_glarea(window->run_glarea, window->run_controls);
}
/* -------------------------------------------------------------------------- */
static inline GtkWidget *create_axis_slider(int axis)
{
GtkWidget *box, *label, *slider;
GtkAdjustment *adj;
const char *text;
box = gtk_box_new(GTK_ORIENTATION_HORIZONTAL, 0);
switch (axis) {
case X_AXIS:
text = "X";
break;
case Y_AXIS:
text = "Y";
break;
case Z_AXIS:
text = "Z";
break;
default:
g_assert_not_reached();
}
label = gtk_label_new(text);
gtk_box_append(GTK_BOX(box), label);
gtk_widget_show(label);
adj = gtk_adjustment_new(0.0, 0.0, 360.0, 1.0, 12.0, 0.0);
g_signal_connect(adj, "value-changed",
G_CALLBACK(on_axis_value_change),
GINT_TO_POINTER(axis));
slider = gtk_scale_new(GTK_ORIENTATION_HORIZONTAL, adj);
gtk_box_append(GTK_BOX(box), slider);
gtk_widget_set_hexpand(slider, TRUE);
gtk_widget_show(slider);
gtk_widget_show(box);
return box;
}
void ui_setup_glarea(GtkGLArea *target, GtkBox *target_controls)
{
int i, minor=4, major=0;
GtkWidget *controls;
gl_area = GTK_WIDGET(target);
controls = GTK_WIDGET(target_controls);
gtk_widget_set_hexpand(gl_area, TRUE);
gtk_widget_set_vexpand(gl_area, TRUE);
gtk_widget_set_halign(gl_area, GTK_ALIGN_CENTER);
gtk_widget_set_valign(gl_area, GTK_ALIGN_CENTER);
gtk_widget_set_size_request(gl_area, 500, 500);
// We need to initialize and free GL resources, so we use
// the realize and unrealize signals on the widget
//
g_signal_connect(gl_area, "realize", G_CALLBACK(on_realize), NULL);
g_signal_connect(gl_area, "unrealize", G_CALLBACK(on_unrealize), NULL);
// The main "draw" call for GtkGLArea
g_signal_connect(gl_area, "render", G_CALLBACK(on_render), NULL);
gtk_widget_set_hexpand(controls, TRUE);
for(i = 0; i < N_AXIS; i++)
gtk_box_append(GTK_BOX(controls), create_axis_slider(i));
gtk_gl_area_set_auto_render(target, true);
gtk_widget_show(GTK_WIDGET(gl_area));
gtk_gl_area_set_required_version( GTK_GL_AREA(gl_area), minor, major);
gtk_gl_area_get_required_version( GTK_GL_AREA(gl_area), &minor, &major);
}