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GTK4_GG_hack
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Linking failure: (address) [debug] ui_init_graphic_stack() : stack_id is -1 Failed to link the graphic stack to widgets

This commit is contained in:
Jean Sirmai 2024-06-27 20:00:15 +02:00
parent 141f3564e6
commit f0ebffc7ab
Signed by: jean
GPG Key ID: FB3115C340E057E3
7 changed files with 520 additions and 21 deletions
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10
callback.c
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@ -79,14 +79,14 @@ gboolean on_glarea_render(GtkGLArea *area, GdkGLContext *context)
{ {
// Check if the widget is a glarea // Check if the widget is a glarea
if(gtk_gl_area_get_error(area) != NULL) { if(gtk_gl_area_get_error(area) != NULL) {
////////////////////////// on_auto_notification("An OpenGL error occured !"); on_auto_notification("An OpenGL error occured !");
return false; return false;
} }
////////////////////////// if (ui_render_stack(gtk_widget_get_parent(GTK_WIDGET(area))) == false) { if (ui_render_stack(gtk_widget_get_parent(GTK_WIDGET(area))) == false) {
////////////////////////// on_auto_notification("Failed to render corresponding graphic stack !"); on_auto_notification("Failed to render corresponding graphic stack !");
////////////////////////// return false; return false;
////////////////////////// } }
return true; return true;
} }

12
draw.c.todo → draw.c
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@ -151,9 +151,9 @@ void graphics_draw(const int stack_id)
{ {
struct graphic_stack_t *stack = &graphic_stack[stack_id]; struct graphic_stack_t *stack = &graphic_stack[stack_id];
//g_printerr("[debug] graphics_draw() started\n"); g_printerr("[debug] graphics_draw() started\n");
//print_stack(stack_id); print_stack(stack_id);
GLint cur_viewport[4]; GLint cur_viewport[4];
glGetIntegerv(GL_VIEWPORT, cur_viewport); glGetIntegerv(GL_VIEWPORT, cur_viewport);
@ -166,9 +166,9 @@ void graphics_draw(const int stack_id)
mat4 v = GLM_MAT4_IDENTITY_INIT; // XXX define zoom and translations here ? mat4 v = GLM_MAT4_IDENTITY_INIT; // XXX define zoom and translations here ?
mat4 p = GLM_MAT4_IDENTITY_INIT; mat4 p = GLM_MAT4_IDENTITY_INIT;
//glm_ortho(-1.0f, +1.0f, -1.0f, +1.0f, -1.0f, +1.0f, p); glm_ortho(-1.0f, +1.0f, -1.0f, +1.0f, -1.0f, +1.0f, p);
glm_ortho_default((float)cur_viewport[2] / (float)cur_viewport[3], p); glm_ortho_default((float)cur_viewport[2] / (float)cur_viewport[3], p);
//glm_perspective_default((float)cur_viewport[2] / (float)cur_viewport[3], p); glm_perspective_default((float)cur_viewport[2] / (float)cur_viewport[3], p);
/* Use our shaders */ /* Use our shaders */
glUseProgram(stack->program); glUseProgram(stack->program);
@ -191,7 +191,7 @@ void graphics_draw(const int stack_id)
glBindBuffer(GL_ARRAY_BUFFER, stack->color_buffer); glBindBuffer(GL_ARRAY_BUFFER, stack->color_buffer);
glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0,(void*)0); glVertexAttribPointer(1, 3, GL_FLOAT, GL_FALSE, 0,(void*)0);
//glEnable(GL_DEPTH_TEST); glEnable(GL_DEPTH_TEST);
glDrawElements(GL_LINES, stack->buffer_lines_size, GL_UNSIGNED_INT, stack->buffer_lines_origin); glDrawElements(GL_LINES, stack->buffer_lines_size, GL_UNSIGNED_INT, stack->buffer_lines_origin);
glDrawElements(GL_TRIANGLES, stack->buffer_plans_size, GL_UNSIGNED_INT, stack->buffer_plans_origin); glDrawElements(GL_TRIANGLES, stack->buffer_plans_size, GL_UNSIGNED_INT, stack->buffer_plans_origin);
@ -203,5 +203,5 @@ void graphics_draw(const int stack_id)
glUseProgram(0); glUseProgram(0);
glFlush(); glFlush();
//g_printerr("[debug] graphics_draw() ended\n"); g_printerr("[debug] graphics_draw() ended\n");
} }

27
graph_area.c
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@ -39,6 +39,23 @@ static struct stack_index_t *stack_index = NULL;
size_t stack_index_size = 0; size_t stack_index_size = 0;
int set_arrow (int stack_id, // 2024-06-27 DEBUG !
int arrows_nb,
int space_X,
int space_Y,
int space_Z,
int requested_weight,
int site,
int arrow_x,
int arrow_y,
int arrow_z) {
printf("graph_area.c > int set_arrow (...) 2024-06-27 DEBUG\n");
return 0;
} // 2024-06-27 DEBUG !
/* /*
* Look for stack entry and returns stack_id * Look for stack entry and returns stack_id
* *
@ -151,13 +168,15 @@ bool ui_render_stack(GtkWidget *container_widget)
// look for stack_index entry // look for stack_index entry
for (int i = 0; i < stack_index_size; i++) { for (int i = 0; i < stack_index_size; i++) {
if (stack_index[i].container_widget == (void *)container_widget) { if (stack_index[i].container_widget == (void *)container_widget) {
////////////////////////// graphics_draw (stack_index[i].stack_id); graphics_draw (stack_index[i].stack_id);
return true; return true;
} }
} }
return false; return false;
} }
//void graphics_draw(const int stack_id) {printf("graph_area.c > void graphics_draw(const int stack_id) (161)\n");}
/* /*
* Look for stack entry and triggers OpenGL for drawing * Look for stack entry and triggers OpenGL for drawing
* *
@ -279,12 +298,12 @@ bool ui_setup_glarea(int target_mode, GtkWidget *target_widget)
gl_area = GTK_WIDGET(gtk_gl_area_new()); gl_area = GTK_WIDGET(gtk_gl_area_new());
assert(gl_area); assert(gl_area);
//gtk_widget_set_size_request(gl_area, 1000, 1000); gtk_widget_set_size_request(gl_area, 1000, 1000);
gtk_gl_area_set_auto_render(GTK_GL_AREA(gl_area), true); gtk_gl_area_set_auto_render(GTK_GL_AREA(gl_area), true);
gtk_widget_set_hexpand(gl_area, TRUE); gtk_widget_set_hexpand(gl_area, TRUE);
gtk_widget_set_vexpand(gl_area, TRUE); gtk_widget_set_vexpand(gl_area, TRUE);
//gtk_widget_set_halign(gl_area, GTK_ALIGN_CENTER); gtk_widget_set_halign(gl_area, GTK_ALIGN_CENTER);
//gtk_widget_set_valign(gl_area, GTK_ALIGN_CENTER); gtk_widget_set_valign(gl_area, GTK_ALIGN_CENTER);
// The main "draw" call for GtkGLArea // The main "draw" call for GtkGLArea
g_signal_connect(GTK_GL_AREA(gl_area), "render", G_CALLBACK(on_glarea_render), NULL); g_signal_connect(GTK_GL_AREA(gl_area), "render", G_CALLBACK(on_glarea_render), NULL);

4
graph_area.h
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@ -25,6 +25,8 @@
#pragma once #pragma once
#include <unistd.h> #include <unistd.h>
#include <gtk-4.0/gtk/gtk.h>
#include <glib-2.0/glib.h>
#include <stdbool.h> #include <stdbool.h>
#include <epoxy/gl.h> #include <epoxy/gl.h>
#include <GL/glu.h> #include <GL/glu.h>
@ -79,6 +81,8 @@ struct graphic_stack_t {
long buffer_plans_0_arrow; long buffer_plans_0_arrow;
}; };
bool ui_render_stack(GtkWidget *container_widget);
bool ui_setup_glarea(int target_mode, GtkWidget *target_widget); bool ui_setup_glarea(int target_mode, GtkWidget *target_widget);
/* /*

12
graph_stack.c
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@ -286,10 +286,10 @@ void graphics_model_setup (const int stack_id)
/*------------------------------------------------------------------------*/ /*------------------------------------------------------------------------*/
////////////////////////// draw_space_ridges_vertex (stack_id, stack->buffer_vertex_size, space_X, space_Y, space_Z); draw_space_ridges_vertex (stack_id, stack->buffer_vertex_size, space_X, space_Y, space_Z);
////////////////////////// draw_space_ridges_lines (stack_id); draw_space_ridges_lines (stack_id);
////////////////////////// draw_grids_on_space_faces_vertex (stack_id, space_X, space_Y, space_Z); draw_grids_on_space_faces_vertex (stack_id, space_X, space_Y, space_Z);
////////////////////////// draw_grids_on_space_faces_lines (stack_id, stack->buffer_lines_size, space_X, space_Y, space_Z); draw_grids_on_space_faces_lines (stack_id, stack->buffer_lines_size, space_X, space_Y, space_Z);
stack->buffer_vertex_0_arrow = stack->buffer_vertex_size; stack->buffer_vertex_0_arrow = stack->buffer_vertex_size;
stack->buffer_colors_0_arrow = stack->buffer_colors_size; stack->buffer_colors_0_arrow = stack->buffer_colors_size;
@ -314,10 +314,10 @@ void graphics_model_setup (const int stack_id)
while (model_get_next_arrow(&arrow, (char *)&state_id, dimension)) { while (model_get_next_arrow(&arrow, (char *)&state_id, dimension)) {
g_print("[GRAPH DEBUG] cur arrow has x = %d\n", arrow.x); g_print("[GRAPH DEBUG] cur arrow has x = %d\n", arrow.x);
////////////////////////// stack->arrows_nb = set_arrow (stack_id, stack->arrows_nb, space_X, space_Y, space_Z, arrow.load, arrow.site, arrow.x, arrow.y, arrow.z); stack->arrows_nb = set_arrow (stack_id, stack->arrows_nb, space_X, space_Y, space_Z, arrow.load, arrow.site, arrow.x, arrow.y, arrow.z);
} }
if (stack->arrows_nb != announced_arrows_nb) if (stack->arrows_nb != announced_arrows_nb)
g_printerr("ARGH : all the arrows have not been parsed !\n"); g_printerr("ARGH : not all arrows have been parsed !\n");
} }

314
graphics.h Normal file
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@ -0,0 +1,314 @@
/*
* 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>
#include <cglm/cglm.h>
#define VERTEX_SHADER_FILE "src/graphics/shaders/shader.vert"
#define FRAG_SHADER_FILE "src/graphics/shaders/shader.frag"
#define GL_TARGET_MAJOR_VERSION 0
#define GL_TARGET_MINOR_VERSION 4
/*
* Structure describing a gl_area and its parameters, used to create a table
* of Gem-graph client current gl_areas
*/
struct graphic_stack_t {
int id;
int mode;
float rotation_angles[N_AXIS]; // Rotation angles on each axis
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
struct arrow_t *arrows_ptr;
long arrows_nb;
GLfloat *buffer_vertex_origin;
GLfloat *buffer_colors_origin;
GLuint *buffer_lines_origin;
GLuint *buffer_plans_origin;
long buffer_vertex_size;
long buffer_colors_size;
long buffer_lines_size;
long buffer_plans_size;
long buffer_vertex_0_arrow;
long buffer_colors_0_arrow;
long buffer_lines_0_arrow;
long buffer_plans_0_arrow;
};
/*
* Dynamic array of ptrs to dynamically allocated gl_area_entry
*/
extern struct graphic_stack_t *graphic_stack;
/*
* Initializes a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if initialized
*/
int graphics_init(void *error_buffer);
/*
* Draws the current buffer to a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return void
*/
//void graphics_draw(const int stack_id);
/*
* Shutdowns a gl_area
*
* @param gl_area, ptr to the gl_area widget
*
* @return true if success
*/
bool graphics_shutdown(const int stack_id, void *error_buffer);
/*
* 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 int stack_id);
/* 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 int stack_id);
/*
* Draws a vertex (x, y, z)
* if (console) prints (x, y, z) values to console
*
* @param GLfloat x, GLfloat y, GLfloat z
*
* @return void
*/
void graphics_draw_vertex (const int stack_id,
GLfloat x,
GLfloat y,
GLfloat z);
/*
* Draws the color (r, g, b) associated to a vertex
* if (console) prints (r, g, b) values to console
*
* @param GLfloat r, GLfloat g, GLfloat b
*
* @return void
*/
void graphics_draw_color (const int stack_id, GLfloat r, GLfloat g, GLfloat b);
/*
* Writes values to describe a line from a to b into the line buffer
*
* @param coords GLuint (a,b)
*
* @return void
*/
void graphics_draw_line (const int stack_id, GLuint a, GLuint 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_draw_plan (const int stack_id, GLuint a, GLuint b, GLuint c);
/*
* Created and compile a shader
*
* @param type, shader type
* src, source code of shader
*
* @return shader id
*/
static inline GLuint create_shader(const int stack_id, 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;
}
static inline void print_stack(int stack_id)
{
static int n = 0;
printf("\n[n=%d]***************", n);
printf("id = %d\tmode = %d\n",
graphic_stack[stack_id].id,
graphic_stack[stack_id].mode);
printf("rotation_angles = ");
for (int i = 0; i < N_AXIS; i++) {
printf("%f\t", graphic_stack[stack_id].rotation_angles[i]); // Rotation angles on each axis
}
printf("\n");
printf("vao = %d\n", graphic_stack[stack_id].vao);
printf("position_buffer = %d\n", graphic_stack[stack_id].position_buffer);
printf("color_buffer = %d\n", graphic_stack[stack_id].color_buffer);
printf("program = %d\n", graphic_stack[stack_id].program);
printf("m = %d\n", graphic_stack[stack_id].m);
printf("v = %d\n", graphic_stack[stack_id].v);
printf("p = %d\n", graphic_stack[stack_id].p);
printf("arrows_ptr = %p\n", graphic_stack[stack_id].arrows_ptr);
printf("arrows_nb = %ld\n", graphic_stack[stack_id].arrows_nb);
printf("buffer_vertex_origin = %p\n", graphic_stack[stack_id].buffer_vertex_origin);
printf("buffer_colors_origin = %p\n", graphic_stack[stack_id].buffer_colors_origin);
printf("buffer_lines_origin = %p\n", graphic_stack[stack_id].buffer_lines_origin);
printf("buffer_plans_origin = %p\n", graphic_stack[stack_id].buffer_plans_origin);
printf("buffer_vertex_size = %ld\n", graphic_stack[stack_id].buffer_vertex_size);
printf("buffer_colors_size = %ld\n", graphic_stack[stack_id].buffer_colors_size);
printf("buffer_lines_size = %ld\n", graphic_stack[stack_id].buffer_lines_size);
printf("buffer_plans_size = %ld\n", graphic_stack[stack_id].buffer_plans_size);
printf("buffer_vertex_0_arrow = %ld\n", graphic_stack[stack_id].buffer_vertex_0_arrow);
printf("buffer_colors_0_arrow = %ld\n", graphic_stack[stack_id].buffer_colors_0_arrow);
printf("buffer_lines_0_arrow = %ld\n", graphic_stack[stack_id].buffer_lines_0_arrow);
printf("buffer_plans_0_arrow = %ld\n", graphic_stack[stack_id].buffer_plans_0_arrow);
printf("********************\n");
n++;
}
void graphics_model_setup (const int stack_id);
int draw_one_arrow_vertex (const int stack_id,
int space_X,
int space_Y,
int space_Z,
int weight,
int site,
int x,
int y,
int z);
int draw_one_arrow_line(const int stack_id,
int offset_vertex);
/*
* Writes grid ridges to vertex and color buffers
*
* @param coords long (x,y,z), step_x, step_y, step_z
*
* @return void
*/
int draw_space_ridges_vertex (const int stack_id,
long offset_vertex,
long x,
long y,
long z);
int draw_space_ridges_lines (const int stack_id);
/*
* Writes grid lines on space faces
*
* @param coords long (x,y,z)
*
* @return void
*/
long draw_grids_on_space_faces_vertex (const int stack_id,
long x,
long y,
long z);
long draw_grids_on_space_faces_lines (const int stack_id,
long offset_vertex,
long x,
long y,
long z);
int set_arrow (int stack_id,
int arrows_nb,
int space_X,
int space_Y,
int space_Z,
int requested_weight,
int site,
int arrow_x,
int arrow_y,
int arrow_z);

162
grid.c Normal file
View File

@ -0,0 +1,162 @@
/*
* 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
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#include <stdlib.h>
#include <time.h>
#include "base.h"
//#include "ui.h"
#include "graphics.h"
int draw_space_ridges_vertex (const int stack_id,
long offset_vertex,
long x,
long y,
long z)
{
GLfloat max = fmax(x, y); max = fmax(max, z);
graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex - y / max, - z / max);
graphics_draw_vertex (stack_id, offset_vertex + x / max, offset_vertex - y / max, - z / max);
graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex + y / max, - z / max);
graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex - y / max, + z / max);
graphics_draw_vertex (stack_id, offset_vertex + x / max, offset_vertex + y / max, - z / max);
graphics_draw_vertex (stack_id, offset_vertex + x / max, offset_vertex - y / max, + z / max);
graphics_draw_vertex (stack_id, offset_vertex - x / max, offset_vertex + y / max, + z / max);
graphics_draw_vertex (stack_id, offset_vertex + x / max, + y / max, + z / max);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
graphics_draw_color (stack_id, 0.8f, 0.6f, 0.5f);
return 8;
}
int draw_space_ridges_lines (const int stack_id)
{
graphics_draw_line (stack_id, 0, 1); graphics_draw_line (stack_id, 7, 4);
graphics_draw_line (stack_id, 0, 2); graphics_draw_line (stack_id, 7, 5);
graphics_draw_line (stack_id, 0, 3); graphics_draw_line (stack_id, 7, 6);
graphics_draw_line (stack_id, 1, 4); graphics_draw_line (stack_id, 2, 4);
graphics_draw_line (stack_id, 1, 5); graphics_draw_line (stack_id, 3, 5);
graphics_draw_line (stack_id, 2, 6); graphics_draw_line (stack_id, 3, 6);
return 12;
}
long draw_grids_on_space_faces_vertex (const int stack_id,
long x,
long y,
long z)
{
float i, max = fmax(x, y); max = fmax(max, z);
for (i = 1; i < x; i++) {
graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max, - y / max, - z / max);
graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max, - y / max, z / max);
graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max, y / max, z / max);
graphics_draw_vertex (stack_id, (2 * i / x - 1) * x / max, y / max, - z / max);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
}
/* offset_vertex += (x - 1) * 4; */ /* offset_colors += (x - 1) * 4; */
for (i = 1; i < y; i++) {
graphics_draw_vertex (stack_id, - x / max, (2 * i / y - 1) * y / max, - z / max);
graphics_draw_vertex (stack_id, - x / max, (2 * i / y - 1) * y / max, z / max);
graphics_draw_vertex (stack_id, x / max, (2 * i / y - 1) * y / max, z / max);
graphics_draw_vertex (stack_id, x / max, (2 * i / y - 1) * y / max, - z / max);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
}
/* offset_vertex += (y - 1) * 4; */ /* offset_colors += (y - 1) * 4; */
for (i = 1; i < z; i++) {
graphics_draw_vertex (stack_id, - x / max, - y / max, (2 * i / z - 1) * z / max);
graphics_draw_vertex (stack_id, - x / max, y / max, (2 * i / z - 1) * z / max);
graphics_draw_vertex (stack_id, x / max, y / max, (2 * i / z - 1) * z / max);
graphics_draw_vertex (stack_id, x / max, - y / max, (2 * i / z - 1) * z / max);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
graphics_draw_color (stack_id, 0.55f, 0.55f, 0.55f);
}
return (x + y + z - 3) * 3;
}
long draw_grids_on_space_faces_lines (const int stack_id,
long offset_vertex,
long x,
long y,
long z)
{
offset_vertex = offset_vertex / 3;
for (int i = 0; i < x - 1; i ++) {
graphics_draw_line (stack_id, offset_vertex + i * 4 + 1, offset_vertex + i * 4 + 2);
graphics_draw_line (stack_id, offset_vertex + i * 4 + 2, offset_vertex + i * 4 + 3);
}
offset_vertex += (x - 1) * 4;
for (int i = 0; i < y - 1; i ++) {
graphics_draw_line (stack_id, offset_vertex + i * 4 + 2, offset_vertex + i * 4 + 3);
graphics_draw_line (stack_id, offset_vertex + i * 4 + 3, offset_vertex + i * 4 + 0);
}
offset_vertex += (y - 1) * 4;
for (int i = 0; i < z - 1; i ++) {
graphics_draw_line (stack_id, offset_vertex + i * 4 + 0, offset_vertex + i * 4 + 1);
graphics_draw_line (stack_id, offset_vertex + i * 4 + 3, offset_vertex + i * 4 + 0);
}
return (x + y + z - 3) * 4;
}