Functions to create GLSL programs
Functions to manage GLSL programs. More...

#include "global.h"
#include "interface.h"
#include "glview.h"
#include "ogl_shading.h"

Include dependency graph for ogl_shading.c:

Macros
#define	LIGHT_INFO 3
#define	MATERIAL_DATA 8
#define	FOG_DATA 5
#define	LIGHT_DATA 10

Functions
GLuint	create_shader (int type, const GLchar *src)
	create an OpenGL GLSL shader
GLuint *	alloc_shader_pointer (GLuint *pointer, int shaders)
	allocate GLuint data pointer, ensure that it is clean
void	allocate_instances (object_3d *object)
	allocate the instances buffer of a 3D object
void	set_light_uniform_location (GLuint lightning, int id, int j, int k, char string)
	set lightning uniform location
GLuint *	glsl_add_lights (glsl_program *glsl)
	add lightning to an OpenGL shader program
void	glsl_bind_points (glsl_program glsl, object_3d obj)
	bind a 3D object point to an OpenGL shader program
void	glsl_bind_spheres (glsl_program glsl, object_3d obj)
	bind a 3D object sphere to an OpenGL shader program
void	glsl_bind_lines (glsl_program glsl, object_3d obj)
	bind a 3D object line to an OpenGL shader program
void	glsl_bind_cylinders (glsl_program glsl, object_3d obj)
	bind a 3D object cylinder to an OpenGL shader program
void	glsl_bind_caps (glsl_program glsl, object_3d obj)
	bind a 3D object cylinder cap to an OpenGL shader program
void	glsl_bind_polyhedra (glsl_program glsl, object_3d obj)
	bind a 3D object polyhedra to an OpenGL shader program
void	glsl_bind_background (glsl_program glsl, object_3d obj)
	bind background data to an OpenGL shader program
void	update_string_instances (glsl_program glsl, object_3d obj)
	Update OpenGL string texture instances.
void	glsl_bind_string (glsl_program glsl, object_3d obj)
	bind a 3D object text string to an OpenGL shader program
object_3d *	duplicate_object_3d (object_3d *old_obj)
	create a copy of an object_3d data structure
object_3d *	free_object_3d (object_3d *obj)
	free the memory allocated to create an object_3d data structure
glsl_program *	free_this_glsl_program (glsl_program *glsl)
	free memory allocated to create a glsl program
glsl_program *	init_shader_program (int object, int object_id, const GLchar vertex, const GLchar geometry, const GLchar fragment, GLenum type_of_vertices, int narray, int nunif, gboolean lightning, object_3d obj)
	create an OpenGL shader program
gboolean	in_md_shaders (project *this_proj, int id)
	is this shader MD dependent ?
void	re_create_all_md_shaders (glwin *view)
	re-initialize all MD dependent OpenGL shaders
void	re_create_md_shaders (int nshaders, int shaders[nshaders], project *this_proj)
	re-initialize some MD dependent OpenGL shaders
void	cleaning_shaders (glwin *view, int shader)
	re-initialize an OpenGL shader
void	recreate_all_shaders (glwin *view)
	re-initialize all OpenGL shaders
void	init_default_shaders (glwin *view)
	re-initialize the default OpenGL shaders
void	init_shaders (glwin *view)
	initialize all the OpenGL shaders
gboolean	glsl_disable_cull_face (glsl_program *glsl)
	Disable or enable cull face for OpenGL rendering.
void	set_lights_data (glsl_program *glsl)
	set lightning data for an OpenGL progam
void	shading_glsl_text (glsl_program *glsl)
	Render text in OpenGL.
void	render_this_shader (glsl_program *glsl, int ids)
	render an OpenGL shader
void	draw_vertices (int id)
	Draw OpenGL shader program.

Variables
uint16_t	stipple_pattern [NDOTS] ={ 0xAAAA, 0x1111, 0x0000, 0x55FF, 0x24FF, 0x3F3F, 0x33FF, 0x27FF}
int	this_tilt
int	this_pattern
int	this_factor

Detailed Description

Functions to create GLSL programs
Functions to manage GLSL programs.

Author: Sébastien Le Roux sebas.nosp@m.tien.nosp@m..lero.nosp@m.ux@i.nosp@m.pcms..nosp@m.unis.nosp@m.tra.f.nosp@m.r

Definition in file ogl_shading.c.

Macro Definition Documentation

◆ FOG_DATA

#define FOG_DATA 5

Definition at line 141 of file ogl_shading.c.

◆ LIGHT_DATA

#define LIGHT_DATA 10

Definition at line 142 of file ogl_shading.c.

◆ LIGHT_INFO

#define LIGHT_INFO 3

Definition at line 139 of file ogl_shading.c.

◆ MATERIAL_DATA

#define MATERIAL_DATA 8

Definition at line 140 of file ogl_shading.c.

Function Documentation

◆ alloc_shader_pointer()

GLuint * alloc_shader_pointer	(	GLuint *	pointer,
		int	shaders )

allocate GLuint data pointer, ensure that it is clean

Parameters

pointer	the data pointer to allocate
shaders	the data size to allocate

Definition at line 129 of file ogl_shading.c.

◆ allocate_instances()

void allocate_instances ( object_3d * object )

allocate the instances buffer of a 3D object

Parameters

object the target object_3d

Definition at line 151 of file ogl_shading.c.

◆ cleaning_shaders()

void cleaning_shaders	(	glwin *	view,
		int	shader )

re-initialize an OpenGL shader

Parameters

view	the target glwin
shader	the shader to initialize

Definition at line 792 of file ogl_shading.c.

◆ create_shader()

GLuint create_shader	(	int	type,
		const GLchar *	src )

create an OpenGL GLSL shader

Parameters

type	type of the shader
src	name of the shader

Definition at line 93 of file ogl_shading.c.

◆ draw_vertices()

void draw_vertices ( int id )

Draw OpenGL shader program.

Parameters

id	the ID of the program to render

Definition at line 1167 of file ogl_shading.c.

◆ duplicate_object_3d()

object_3d * duplicate_object_3d ( object_3d * old_obj )

create a copy of an object_3d data structure

Parameters

old_obj the data structure to copy

Definition at line 546 of file ogl_shading.c.

◆ free_object_3d()

object_3d * free_object_3d ( object_3d * obj )

free the memory allocated to create an object_3d data structure

Parameters

obj	the target object_3d data structure to free

Definition at line 581 of file ogl_shading.c.

◆ free_this_glsl_program()

glsl_program * free_this_glsl_program ( glsl_program * glsl )

free memory allocated to create a glsl program

Parameters

glsl	the target glsl program

Definition at line 597 of file ogl_shading.c.

◆ glsl_add_lights()

GLuint * glsl_add_lights ( glsl_program * glsl )

add lightning to an OpenGL shader program

Parameters

glsl	the target glsl

Definition at line 181 of file ogl_shading.c.

◆ glsl_bind_background()

void glsl_bind_background	(	glsl_program *	glsl,
		object_3d *	obj )

bind background data to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object to bind

Definition at line 451 of file ogl_shading.c.

◆ glsl_bind_caps()

void glsl_bind_caps	(	glsl_program *	glsl,
		object_3d *	obj )

bind a 3D object cylinder cap to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object, cylinder cap to bind

Definition at line 385 of file ogl_shading.c.

◆ glsl_bind_cylinders()

void glsl_bind_cylinders	(	glsl_program *	glsl,
		object_3d *	obj )

bind a 3D object cylinder to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object, cylinder to bind

Definition at line 326 of file ogl_shading.c.

◆ glsl_bind_lines()

void glsl_bind_lines	(	glsl_program *	glsl,
		object_3d *	obj )

bind a 3D object line to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object line to bind

Definition at line 296 of file ogl_shading.c.

◆ glsl_bind_points()

void glsl_bind_points	(	glsl_program *	glsl,
		object_3d *	obj )

bind a 3D object point to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object point to bind

Definition at line 227 of file ogl_shading.c.

◆ glsl_bind_polyhedra()

void glsl_bind_polyhedra	(	glsl_program *	glsl,
		object_3d *	obj )

bind a 3D object polyhedra to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object polyhedra to bind

Definition at line 427 of file ogl_shading.c.

◆ glsl_bind_spheres()

void glsl_bind_spheres	(	glsl_program *	glsl,
		object_3d *	obj )

bind a 3D object sphere to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object sphere to bind

Definition at line 260 of file ogl_shading.c.

◆ glsl_bind_string()

void glsl_bind_string	(	glsl_program *	glsl,
		object_3d *	obj )

bind a 3D object text string to an OpenGL shader program

Parameters

glsl	the target glsl
obj	the 3D object text string to bind

Definition at line 507 of file ogl_shading.c.

◆ glsl_disable_cull_face()

gboolean glsl_disable_cull_face ( glsl_program * glsl )

Disable or enable cull face for OpenGL rendering.

Parameters

glsl	the target glsl

Definition at line 889 of file ogl_shading.c.

◆ in_md_shaders()

gboolean in_md_shaders	(	project *	this_proj,
		int	id )

is this shader MD dependent ?

Parameters

this_proj	the target project
id	the shader id

Definition at line 729 of file ogl_shading.c.

◆ init_default_shaders()

void init_default_shaders ( glwin * view )

re-initialize the default OpenGL shaders

Parameters

view	the target glwin

Definition at line 827 of file ogl_shading.c.

◆ init_shader_program()

glsl_program * init_shader_program	(	int	object,
		int	object_id,
		const GLchar *	vertex,
		const GLchar *	geometry,
		const GLchar *	fragment,
		GLenum	type_of_vertices,
		int	narray,
		int	nunif,
		gboolean	lightning,
		object_3d *	obj )

create an OpenGL shader program

Parameters

object	shader id (in enum shaders)
object_id	shader type in: GLSL_SPHERES, GLSL_POINTS, GLSL_LINES, GLSL_CYLINDERS, GLSL_CAPS, GLSL_POLYEDRA, GLSL_STRING, GLSL_BACK
vertex	general shader: in the shaders defined in 'ogl_shaders.c'
geometry	geometry shader, if any: in the shaders defined in 'ogl_shaders.c'
fragment	color shader, if any: in the shaders defined in 'ogl_shaders.c'
type_of_vertices	type of vertices in: GL_POINTS, GL_LINES, GL_TRIANGLE GL_TRIANGLE_FAN, GL_TRIANGLE_STRIP
narray	number of vertices to allocate
nunif	number of uniform location(s) to allocate
lightning	use lightning (1/0)
obj	the object 3D to bind to the shader

Definition at line 626 of file ogl_shading.c.

◆ init_shaders()

void init_shaders ( glwin * view )

initialize all the OpenGL shaders

Parameters

view	the target glwin

Definition at line 855 of file ogl_shading.c.

◆ re_create_all_md_shaders()

void re_create_all_md_shaders ( glwin * view )

re-initialize all MD dependent OpenGL shaders

Parameters

view	the target glwin

Definition at line 748 of file ogl_shading.c.

◆ re_create_md_shaders()

void re_create_md_shaders	(	int	nshaders,
		int	shaders[nshaders],
		project *	this_proj )

re-initialize some MD dependent OpenGL shaders

Parameters

nshaders	the number of shader(s) to initialize
shaders	the list of shaders
this_proj	the target project

Definition at line 770 of file ogl_shading.c.

◆ recreate_all_shaders()

void recreate_all_shaders ( glwin * view )

re-initialize all OpenGL shaders

Parameters

view	the target glwin

Definition at line 811 of file ogl_shading.c.

◆ render_this_shader()

void render_this_shader	(	glsl_program *	glsl,
		int	ids )

render an OpenGL shader

Parameters

glsl	the target glsl
ids

Definition at line 998 of file ogl_shading.c.

◆ set_light_uniform_location()

void set_light_uniform_location	(	GLuint *	lightning,
		int	id,
		int	j,
		int	k,
		char *	string )

set lightning uniform location

Parameters

lightning
id	shader id
j	light id
k	uniform id
string	uniform string

Definition at line 167 of file ogl_shading.c.

◆ set_lights_data()

void set_lights_data ( glsl_program * glsl )

set lightning data for an OpenGL progam

Parameters

glsl	the target glsl

Definition at line 916 of file ogl_shading.c.

◆ shading_glsl_text()

void shading_glsl_text ( glsl_program * glsl )

Render text in OpenGL.

Parameters

glsl	the target glsl

Definition at line 977 of file ogl_shading.c.

◆ update_string_instances()

void update_string_instances	(	glsl_program *	glsl,
		object_3d *	obj )

Update OpenGL string texture instances.

Parameters

glsl	the target glsl
obj

Definition at line 473 of file ogl_shading.c.

Variable Documentation

◆ stipple_pattern

uint16_t stipple_pattern[NDOTS] ={ 0xAAAA, 0x1111, 0x0000, 0x55FF, 0x24FF, 0x3F3F, 0x33FF, 0x27FF}

Definition at line 965 of file ogl_shading.c.

◆ this_factor

int this_factor

Definition at line 968 of file ogl_shading.c.

◆ this_pattern

int this_pattern

Definition at line 967 of file ogl_shading.c.

◆ this_tilt

int this_tilt

Definition at line 966 of file ogl_shading.c.

Macros

Functions

Variables

Detailed Description

Macro Definition Documentation

◆ FOG_DATA

◆ LIGHT_DATA

◆ LIGHT_INFO

◆ MATERIAL_DATA

Function Documentation

◆ alloc_shader_pointer()

◆ allocate_instances()

◆ cleaning_shaders()

◆ create_shader()

◆ draw_vertices()

◆ duplicate_object_3d()

◆ free_object_3d()

◆ free_this_glsl_program()

◆ glsl_add_lights()

◆ glsl_bind_background()

◆ glsl_bind_caps()

◆ glsl_bind_cylinders()

◆ glsl_bind_lines()

◆ glsl_bind_points()

◆ glsl_bind_polyhedra()

◆ glsl_bind_spheres()

◆ glsl_bind_string()

◆ glsl_disable_cull_face()

◆ in_md_shaders()

◆ init_default_shaders()

◆ init_shader_program()

◆ init_shaders()

◆ re_create_all_md_shaders()

◆ re_create_md_shaders()

◆ recreate_all_shaders()

◆ render_this_shader()

◆ set_light_uniform_location()

◆ set_lights_data()

◆ shading_glsl_text()

◆ update_string_instances()

Variable Documentation

◆ stipple_pattern

◆ this_factor

◆ this_pattern

◆ this_tilt