Repository navigation
Expand file tree
/
Copy pathstbi.v
More file actions
68 lines (58 loc) · 1.29 KB
/
Copy pathstbi.v
File metadata and controls
68 lines (58 loc) · 1.29 KB
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
// Copyright (c) 2019 Alexander Medvednikov. All rights reserved.
// Use of this source code is governed by an MIT license
// that can be found in the LICENSE file.
module stbi
import gl
#flag linux -I$HOME/code/v/thirdparty/stb_image
#flag darwin -I$HOME/code/v/thirdparty/stb_image
#define STB_IMAGE_IMPLEMENTATION
#include "stb_image.h"
struct Image {
mut:
width int
height int
nr_channels int
ok bool
data voidptr
ext string
}
import const (
GL_RGBA
GL_RGB
GL_UNSIGNED_BYTE
GL_TEXTURE_2D
STBI_rgb_alpha
)
fn load(path string) Image {
ext := path.all_after('.')
mut res := Image {
ok: true
ext: ext
data: 0
}
if ext == 'png' {
res.data = C.stbi_load(path.str, &res.width, &res.height, &res.nr_channels, STBI_rgb_alpha)
}
else {
res.data = C.stbi_load(path.str, &res.width, &res.height, &res.nr_channels, 0)
}
if isnil(res.data) {
println('stbi cant load')
exit(1)
}
return res
}
fn (img Image) free() {
C.stbi_image_free(img.data)
}
fn (img Image) tex_image_2d() {
mut rgb_flag := GL_RGB
if img.ext == 'png' {
rgb_flag = GL_RGBA
}
C.glTexImage2D(GL_TEXTURE_2D, 0, rgb_flag, img.width, img.height, 0, rgb_flag, GL_UNSIGNED_BYTE,
img.data)
}
fn set_flip_vertically_on_load(val bool) {
C.stbi_set_flip_vertically_on_load(val)
}