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805e4bcd65
Four corrections from a review pass over the previous two commits. Count only a render node whose name is renderD followed by a numeric minor. The prefix test also matched something like renderD.backup, which would have inflated the count and pushed a genuinely single-GPU host onto the CPU path. Log the load only after every required symbol resolved. load() still returns None when one is missing, so announcing success first could print "libdrmtap loaded" and then "libdrmtap not available" for the same library. Name only the capability each absent symbol costs: a library missing just drmtap_render_node loses exporting-GPU selection, one missing just drmtap_list_devices loses multi-GPU enumeration, and the previous wording claimed both were gone in either case. Fix the security document's audit step. The dlopen names the symlink by absolute path and the package registers no linker directory, so a leftover object beside it is not loaded on its own; what matters is where the symlink points, and a leftover only matters as what a stray ldconfig would repoint it to. Ask the auditor to read the symlink target instead.
Derived from https://github.com/quadrupleslap/scrap
scrap
Scrap records your screen! At least it does if you're on Windows, macOS, or Linux.
Usage
[dependencies]
scrap = "0.5"
Its API is as simple as it gets!
struct Display; /// A screen.
struct Frame; /// An array of the pixels that were on-screen.
struct Capturer; /// A recording instance.
impl Capturer {
/// Begin recording.
pub fn new(display: Display) -> io::Result<Capturer>;
/// Try to get a frame.
/// Returns WouldBlock if it's not ready yet.
pub fn frame<'a>(&'a mut self) -> io::Result<Frame<'a>>;
pub fn width(&self) -> usize;
pub fn height(&self) -> usize;
}
impl Display {
/// The primary screen.
pub fn primary() -> io::Result<Display>;
/// All the screens.
pub fn all() -> io::Result<Vec<Display>>;
pub fn width(&self) -> usize;
pub fn height(&self) -> usize;
}
impl<'a> ops::Deref for Frame<'a> {
/// A frame is just an array of bytes.
type Target = [u8];
}
The Frame Format
- The frame format is guaranteed to be packed BGRA.
- The width and height are guaranteed to remain constant.
- The stride might be greater than the width, and it may also vary between frames.
System Requirements
| OS | Minimum Requirements |
|---|---|
| macOS | macOS 10.8 |
| Linux | XCB + SHM + RandR |
| Windows | DirectX 11.1 |