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format/pixel: add Descriptor::{name, log2_chroma_w}()

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This commit is contained in:
Ivan Molodetskikh 2017-06-21 01:33:51 +03:00 committed by meh
parent 1095c8842e
commit 403407bf2c
1 changed files with 15 additions and 0 deletions
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15
src/util/format/pixel.rs
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@ -1,3 +1,6 @@
use std::ffi::CStr;
use std::str::from_utf8_unchecked;
use ffi::*; use ffi::*;
#[derive(Eq, PartialEq, Copy, Clone, Debug)] #[derive(Eq, PartialEq, Copy, Clone, Debug)]
@ -312,12 +315,24 @@ impl Descriptor {
self.ptr self.ptr
} }
pub fn name(self) -> &'static str {
unsafe {
from_utf8_unchecked(CStr::from_ptr((*self.as_ptr()).name).to_bytes())
}
}
pub fn nb_components(self) -> u8 { pub fn nb_components(self) -> u8 {
unsafe { unsafe {
(*self.as_ptr()).nb_components (*self.as_ptr()).nb_components
} }
} }
pub fn log2_chroma_w(self) -> u8 {
unsafe {
(*self.as_ptr()).log2_chroma_w
}
}
pub fn log2_chroma_h(self) -> u8 { pub fn log2_chroma_h(self) -> u8 {
unsafe { unsafe {
(*self.as_ptr()).log2_chroma_h (*self.as_ptr()).log2_chroma_h