2 releases
0.0.2 | May 25, 2023 |
---|---|
0.0.1 | May 24, 2023 |
#378 in Rendering
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10KB
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gl-capture
Library for capturing screenshots in OpenGL.
See examples/basic.rs for a complete example.
let img = unsafe { gl_capture::capture() };
// img.size: (u32, u32)
// img.data: Vec<capture_gl::Rgb>
// Now use e.g. `png` or `image` crate to save the image data to a file
Alternatively, use capture_into()
to reuse the same image data, instead
of reallocating on every call.
let mut img = gl_capture::RgbImageData::new(size);
unsafe {
gl_capture::capture_into(&mut img);
}
// img.size: (u32, u32)
// img.data: Vec<capture_gl::Rgb>
Also supports other formats, e.g. RgbaImageData
, BgrImageData
, BgraImageData
.
When manually using gl::ReadPixels()
, instead it is also possible to use
read_pixels()
or read_pixels_ptr()
, which performs some additional checks
and setup.
let format = gl_capture::CaptureFormat::Rgb;
let mut data = format.allocate_pixel_data(size);
unsafe {
gl_capture::read_pixels((0, 0), size, format, &mut data);
}
Dependencies
~120KB