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stbi: fix loading image from memory (#15981)

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locriacyber 2022-10-07 14:20:35 +00:00 committed by GitHub
parent 03f82d5f68
commit 07d5612347
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2 changed files with 12 additions and 3 deletions
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3
vlib/gg/image.c.v
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@ -227,8 +227,9 @@ pub fn (mut ctx Context) create_image_from_memory(buf &u8, bufsize int) Image {
ok: stb_img.ok
data: stb_img.data
ext: stb_img.ext
id: ctx.image_cache.len
}
img.init_sokol_image()
img.id = ctx.image_cache.len
ctx.image_cache << img
return img
}

12
vlib/stbi/stbi.c.v
View File

@ -108,13 +108,21 @@ pub fn load(path string) ?Image {
// load_from_memory load an image from a memory buffer
pub fn load_from_memory(buf &u8, bufsize int) ?Image {
return load_from_memory_with_channels(buf, bufsize, 0)
}
// load_from_memory_with_channels an image from a memory buffer, with user-defined number of image channels
pub fn load_from_memory_with_channels(buf &u8, bufsize int, desired_channels int) ?Image {
mut res := Image{
ok: true
data: 0
}
flag := C.STBI_rgb_alpha
res.data = C.stbi_load_from_memory(buf, bufsize, &res.width, &res.height, &res.nr_channels,
flag)
desired_channels)
if desired_channels == 4 && res.nr_channels == 3 {
// Fix an alpha png bug
res.nr_channels = 4
}
if isnil(res.data) {
return error('stbi_image failed to load from memory')
}