46 lines
1.1 KiB
Rust
46 lines
1.1 KiB
Rust
use librashader_common::Size;
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pub use image::ImageError;
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use std::path::Path;
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pub struct Image {
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pub bytes: Vec<u8>,
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pub size: Size<u32>,
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pub pitch: usize,
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}
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/// The direction of UV coordinates to load the image for.
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#[derive(Copy, Clone, Debug, Eq, PartialEq)]
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pub enum UVDirection {
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/// Origin is at the top left (Direct3D, Vulkan)
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TopLeft,
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/// Origin is at the bottom left (OpenGL)
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BottomLeft,
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}
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impl Image {
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/// Load the image from the path as RGBA8.
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pub fn load(path: impl AsRef<Path>, direction: UVDirection) -> Result<Self, ImageError> {
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let mut image = image::open(path.as_ref())?;
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if direction == UVDirection::BottomLeft {
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image = image.flipv();
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}
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let image = image.to_rgba8();
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let height = image.height();
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let width = image.width();
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let pitch = image
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.sample_layout()
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.height_stride
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.max(image.sample_layout().width_stride);
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Ok(Image {
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bytes: image.into_raw(),
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pitch,
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size: Size { height, width },
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})
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}
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}
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