Files
ab_glyph_rasterizer
adler
adler32
andrew
bitflags
bytemuck
byteorder
calloop
cfg_if
color_quant
crc32fast
crossbeam_channel
crossbeam_deque
crossbeam_epoch
crossbeam_utils
deflate
dlib
downcast_rs
draw_state
either
event_loop
float
fnv
gfx
gfx_core
gfx_device_gl
gfx_gl
gfx_graphics
gfx_texture
gif
gl
glutin
glutin_egl_sys
glutin_glx_sys
glutin_window
graphics
graphics_api_version
image
input
instant
interpolation
iovec
jpeg_decoder
lazy_static
lazycell
libc
libloading
lock_api
log
maybe_uninit
memchr
memmap2
memoffset
miniz_oxide
mio
mio_extras
net2
nix
nom
num_cpus
num_integer
num_iter
num_rational
num_traits
once_cell
osmesa_sys
owned_ttf_parser
parking_lot
parking_lot_core
percent_encoding
piston
piston_window
png
proc_macro2
quote
raw_window_handle
rayon
rayon_core
read_color
rusttype
same_file
scoped_threadpool
scoped_tls
scopeguard
serde
serde_derive
shader_version
shaders_graphics2d
colored
textured
textured_color
shared_library
slab
smallvec
smithay_client_toolkit
spin_sleep
syn
texture
tiff
ttf_parser
unicode_xid
vecmath
viewport
walkdir
wayland_client
wayland_commons
wayland_cursor
wayland_egl
wayland_protocols
wayland_sys
weezl
window
winit
x11_dl
xcursor
xdg
xml
 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
use super::*;
use crate::icon::{Icon, Pixel, PIXEL_SIZE};

impl Pixel {
    pub fn to_packed_argb(&self) -> Cardinal {
        let mut cardinal = 0;
        assert!(CARDINAL_SIZE >= PIXEL_SIZE);
        let as_bytes = &mut cardinal as *mut _ as *mut u8;
        unsafe {
            *as_bytes.offset(0) = self.b;
            *as_bytes.offset(1) = self.g;
            *as_bytes.offset(2) = self.r;
            *as_bytes.offset(3) = self.a;
        }
        cardinal
    }
}

impl Icon {
    pub(crate) fn to_cardinals(&self) -> Vec<Cardinal> {
        let rgba_icon = &self.inner;
        assert_eq!(rgba_icon.rgba.len() % PIXEL_SIZE, 0);
        let pixel_count = rgba_icon.rgba.len() / PIXEL_SIZE;
        assert_eq!(pixel_count, (rgba_icon.width * rgba_icon.height) as usize);
        let mut data = Vec::with_capacity(pixel_count);
        data.push(rgba_icon.width as Cardinal);
        data.push(rgba_icon.height as Cardinal);
        let pixels = rgba_icon.rgba.as_ptr() as *const Pixel;
        for pixel_index in 0..pixel_count {
            let pixel = unsafe { &*pixels.offset(pixel_index as isize) };
            data.push(pixel.to_packed_argb());
        }
        data
    }
}