aboutsummaryrefslogtreecommitdiff
path: root/tests/main.c
blob: 0e6e199fabb8fa1da8b05bdcdcaceb83a6b0dc5b (plain)
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
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
#include <stdio.h>
#include <mgl/mgl.h>
#include <mgl/window/window.h>
#include <mgl/window/event.h>
#include <mgl/graphics/texture.h>
#include <mgl/graphics/rectangle.h>
#include <mgl/graphics/sprite.h>
#include <mgl/graphics/font.h>
#include <mgl/graphics/text.h>
#include <mgl/graphics/vertex_buffer.h>
#include <mgl/graphics/shader.h>

typedef struct {
    mgl_texture *texture;
    mgl_font *font;
    mgl_vertex_buffer *vertex_buffer;
    mgl_shader_program *shader_program;
} Userdata;

static void draw(mgl_window *window, void *userdata) {
    mgl_context *context = mgl_get_context();
    Userdata *u = userdata;

    mgl_rectangle rect = {
        .color = { 255, 0, 0, 255 },
        .position = { window->cursor_position.x, window->cursor_position.y },
        .size = { 100.0f, 500.0f }
    };
    mgl_rectangle_draw(context, &rect);

    /*mgl_shader_program_set_uniform_texture2d(u->shader_program, "texture", u->texture);*/
    mgl_shader_program_set_uniform_vec2f(u->shader_program, "resolution", (mgl_vec2f){ window->size.x, window->size.y });

    mgl_sprite sprite;
    mgl_sprite_init(&sprite, u->texture, 100.0f - 10.0f, 0.0f);
    mgl_sprite_set_color(&sprite, (mgl_color){255, 255, 255, 128});
    mgl_shader_program_use(u->shader_program);
    mgl_sprite_draw(context, &sprite);
    mgl_shader_program_use(NULL);

    mgl_text text;
    mgl_text_init(&text, u->font, "hello world!\nGood bye world!", 0.0f, 0.0f);
    mgl_text_draw(context, &text);
    mgl_text_deinit(&text);

    mgl_vertex_buffer_set_position(u->vertex_buffer, (mgl_vec2f){ window->cursor_position.x, window->cursor_position.y });
    mgl_vertex_buffer_draw(context, u->vertex_buffer, &u->font->texture);
}

int main(int argc, char **argv) {
    if(mgl_init() != 0)
        return 1;

    mgl_texture texture;
    mgl_font font;
    mgl_vertex_buffer vertex_buffer;
    mgl_shader_program shader_program;

    Userdata userdata;
    userdata.texture = &texture;
    userdata.font = &font;
    userdata.vertex_buffer = &vertex_buffer;
    userdata.shader_program = &shader_program;

    mgl_window window;
    if(mgl_window_create(&window, "mgl", 1280, 720) != 0)
        return 1;

    if(mgl_texture_load_from_file(&texture, "tests/X11.png", NULL) != 0)
        return 1;

    if(mgl_font_load_from_file(&font, "/usr/share/fonts/noto/NotoSans-Regular.ttf", 32) != 0)
        return 1;

    if(mgl_shader_program_init(&shader_program) != 0)
        return 1;

    if(mgl_shader_program_add_shader_from_file(&shader_program, "tests/circle_mask.glsl", MGL_SHADER_FRAGMENT) != 0)
        return 1;

    if(mgl_shader_program_finalize(&shader_program) != 0)
        return 1;

    if(mgl_vertex_buffer_init(&vertex_buffer, MGL_PRIMITIVE_QUADS, MGL_USAGE_STATIC) != 0)
        return 1;

    mgl_vertex vertices[4] = {
        (mgl_vertex){
            .position = {0.0f, 0.0f},
            .color = {255, 0, 0, 100},
            .texcoords = {0.0f, 0.0f}
        },
        (mgl_vertex){
            .position = {font.texture.width, 0.0f},
            .color = {0, 255, 0, 100},
            .texcoords = {1.0f, 0.0f}
        },
        (mgl_vertex){
            .position = {font.texture.width, font.texture.height},
            .color = {0, 0, 255, 100},
            .texcoords = {1.0f, 1.0f}
        },
        (mgl_vertex){
            .position = {0.0f, font.texture.height},
            .color = {255, 0, 255, 100},
            .texcoords = {0.0f, 1.0f}
        }
    };

    if(mgl_vertex_buffer_update(&vertex_buffer, vertices, 4) != 0)
        return 1;

    fprintf(stderr, "Font texture width: %d, texture height: %d\n", font.texture.width, font.texture.height);

    mgl_event event;
    for(;;) {
        while(mgl_window_poll_event(&window, &event)) {
            
        }

        mgl_window_clear(&window, (mgl_color){0, 0, 0, 255});
        draw(&window, &userdata);
        mgl_window_display(&window);
    }

    mgl_vertex_buffer_deinit(&vertex_buffer);
    mgl_shader_program_deinit(&shader_program);
    mgl_font_unload(&font);
    mgl_texture_unload(&texture);
    mgl_window_deinit(&window);
    mgl_deinit();
    return 0;
}