1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
|
/* ************************************************************************** */
/* */
/* ::: :::::::: */
/* gl.c :+: :+: :+: */
/* +:+ +:+ +:+ */
/* By: charles <charles.cabergs@gmail.com> +#+ +:+ +#+ */
/* +#+#+#+#+#+ +#+ */
/* Created: 2020/05/11 01:31:10 by charles #+# #+# */
/* Updated: 2020/05/11 10:42:42 by charles ### ########.fr */
/* */
/* ************************************************************************** */
#include "scop.h"
int gl_state_init(t_gl_state *state, t_object *object)
{
if ((state->shader = shader_new()) == 0)
return (-1);
GL_CALL(glGenBuffers(1, &state->vertex_buf));
GL_CALL(glBindBuffer(GL_ARRAY_BUFFER, state->vertex_buf));
GL_CALL(glBufferData(GL_ARRAY_BUFFER, sizeof(float) * object->vertices_len,
object->vertices, GL_STATIC_DRAW));
GL_CALL(glGenBuffers(1, &state->index_buf));
GL_CALL(glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, state->index_buf));
GL_CALL(glBufferData(GL_ELEMENT_ARRAY_BUFFER, sizeof(float) * object->indices_len,
object->indices, GL_STATIC_DRAW));
GL_CALL(glGenVertexArrays(1, &state->vertex_array));
GL_CALL(glBindVertexArray(state->vertex_array));
GL_CALL(glEnableVertexAttribArray(0));
GL_CALL(glVertexAttribPointer(0, 3, GL_FLOAT, GL_FALSE, sizeof(float) * 3, (const void*)0));
return (0);
}
void gl_state_quit(t_gl_state *state, t_object *object)
{
GL_CALL(glDeleteVertexArrays(1, &state->vertex_array));
GL_CALL(glDeleteBuffers(1, &state->vertex_buf));
GL_CALL(glDeleteBuffers(1, &state->index_buf));
GL_CALL(glDeleteProgram(state->shader));
free(object->vertices);
free(object->indices);
}
|
