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runtime: add ARGB8 pixel format

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chyyran 2024-03-07 01:36:04 -05:00 committed by Ronny Chan
parent 9c895caa51
commit 5feac91af2
1 changed files with 15 additions and 0 deletions
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15
librashader-runtime/src/image.rs
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@ -26,6 +26,11 @@ pub struct RGBA8;
/// Every BGR with alpha pixel is represented with 32 bits. /// Every BGR with alpha pixel is represented with 32 bits.
pub struct BGRA8; pub struct BGRA8;
/// A8R8G8B8 pixel format.
///
/// Every BGR with alpha pixel is represented with 32 bits.
pub struct ARGB8;
/// Represents an image pixel format to convert images into. /// Represents an image pixel format to convert images into.
pub trait PixelFormat { pub trait PixelFormat {
#[doc(hidden)] #[doc(hidden)]
@ -45,6 +50,16 @@ impl PixelFormat for BGRA8 {
} }
} }
impl PixelFormat for ARGB8 {
fn convert(pixels: &mut Vec<u8>) {
assert!(pixels.len() % 4 == 0);
for [r, _g, b, a] in ArrayChunksMut::new(pixels) {
std::mem::swap(r, a); // abgr
std::mem::swap(b, r); // argb
}
}
}
/// The direction of UV coordinates to load the image for. /// The direction of UV coordinates to load the image for.
#[derive(Copy, Clone, Debug, Eq, PartialEq)] #[derive(Copy, Clone, Debug, Eq, PartialEq)]
pub enum UVDirection { pub enum UVDirection {