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Graphics (#13)

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Virtual Terminals
This commit is contained in:
Jeremy Soller 2016-10-07 20:18:05 -06:00 • committed by GitHub
commit b49211f24e
1 changed files with 459 additions and 239 deletions
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38
drivers/vesad/src/display.rs
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@ -1,7 +1,8 @@
#[cfg(feature="rusttype")]
extern crate rusttype;
use std::cmp;
use alloc::heap;
use std::{cmp, slice};
use primitive::{fast_set32, fast_set64, fast_copy, fast_copy64};
@ -11,6 +12,15 @@ use self::rusttype::{Font, FontCollection, Scale, point};
#[cfg(not(feature="rusttype"))]
static FONT: &'static [u8] = include_bytes!("../../../res/fonts/unifont.font");
#[cfg(feature="rusttype")]
static FONT: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono.ttf");
#[cfg(feature="rusttype")]
static FONT_BOLD: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono-Bold.ttf");
#[cfg(feature="rusttype")]
static FONT_BOLD_ITALIC: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono-BoldOblique.ttf");
#[cfg(feature="rusttype")]
static FONT_ITALIC: &'static [u8] = include_bytes!("../../../res/fonts/DejaVuSansMono-Oblique.ttf");
/// A display
#[cfg(not(feature="rusttype"))]
pub struct Display {
@ -39,26 +49,32 @@ pub struct Display {
impl Display {
#[cfg(not(feature="rusttype"))]
pub fn new(width: usize, height: usize, onscreen: &'static mut [u32], offscreen: &'static mut [u32]) -> Display {
pub fn new(width: usize, height: usize, onscreen: usize) -> Display {
let size = width * height;
let offscreen = unsafe { heap::allocate(size * 4, 4096) };
unsafe { fast_set64(offscreen as *mut u64, 0, size/2) };
Display {
width: width,
height: height,
onscreen: onscreen,
offscreen: offscreen
onscreen: unsafe { slice::from_raw_parts_mut(onscreen as *mut u32, size) },
offscreen: unsafe { slice::from_raw_parts_mut(offscreen as *mut u32, size) }
}
}
#[cfg(feature="rusttype")]
pub fn new(width: usize, height: usize, onscreen: &'static mut [u32], offscreen: &'static mut [u32]) -> Display {
pub fn new(width: usize, height: usize, onscreen: usize) -> Display {
let size = width * height;
let offscreen = unsafe { heap::allocate(size * 4, 4096) };
unsafe { fast_set64(offscreen as *mut u64, 0, size/2) };
Display {
width: width,
height: height,
onscreen: onscreen,
offscreen: offscreen,
font: FontCollection::from_bytes(include_bytes!("../../../res/fonts/DejaVuSansMono.ttf")).into_font().unwrap(),
font_bold: FontCollection::from_bytes(include_bytes!("../../../res/fonts/DejaVuSansMono-Bold.ttf")).into_font().unwrap(),
font_bold_italic: FontCollection::from_bytes(include_bytes!("../../../res/fonts/DejaVuSansMono-BoldOblique.ttf")).into_font().unwrap(),
font_italic: FontCollection::from_bytes(include_bytes!("../../../res/fonts/DejaVuSansMono-Oblique.ttf")).into_font().unwrap()
onscreen: unsafe { slice::from_raw_parts_mut(onscreen as *mut u32, size) },
offscreen: unsafe { slice::from_raw_parts_mut(offscreen as *mut u32, size) },
font: FontCollection::from_bytes(FONT).into_font().unwrap(),
font_bold: FontCollection::from_bytes(FONT_BOLD).into_font().unwrap(),
font_bold_italic: FontCollection::from_bytes(FONT_BOLD_ITALIC).into_font().unwrap(),
font_italic: FontCollection::from_bytes(FONT_ITALIC).into_font().unwrap()
}
}