Crate gif_dispose 

Implements GIF disposal method for the gif crate.

The gif crate only exposes raw frame data that is not sufficient to render GIFs properly. GIF requires special composing of frames which, as this crate shows, is non-trivial.

let file = std::fs::File::open("example.gif")?;

let mut gif_opts = gif::DecodeOptions::new();
// Important:
gif_opts.set_color_output(gif::ColorOutput::Indexed);

let mut decoder = gif_opts.read_info(file)?;
let mut screen = gif_dispose::Screen::new_decoder(&decoder);

while let Some(frame) = decoder.read_next_frame()? {
    screen.blit_frame(&frame)?;
    let _ = screen.pixels_rgba().clone(); // that's the frame now in RGBA format
    let _ = screen.pixels_rgba().to_contiguous_buf(); // that works too
}

Structs

Screen

Combined GIF frames forming a “virtual screen”. See Screen::new_decoder.

TempDisposedStateScreen

Screen that has a temporary state between frames

Enums

Error

Type Aliases

ImgRef

Reference to pixels inside another image. Pass this structure by value (i.e. ImgRef, not &ImgRef).

RGB8

8-bit RGB

RGBA8

8-bit RGBA, alpha is last. 0 = transparent, 255 = opaque.