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50 lines
1.6 KiB
Rust
50 lines
1.6 KiB
Rust
// Copyright 2018-2025 the Deno authors. MIT license.
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mod image_ops;
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mod op_create_image_bitmap;
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pub use image;
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use image::ColorType;
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use op_create_image_bitmap::op_create_image_bitmap;
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#[derive(Debug, thiserror::Error, deno_error::JsError)]
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pub enum CanvasError {
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/// Image formats that is 32-bit depth are not supported currently due to the following reasons:
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/// - e.g. OpenEXR, it's not covered by the spec.
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/// - JPEG XL supported by WebKit, but it cannot be called a standard today.
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/// https://github.com/whatwg/mimesniff/issues/143
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///
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#[class(type)]
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#[error("Unsupported color type and bit depth: '{0:?}'")]
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UnsupportedColorType(ColorType),
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#[class("DOMExceptionInvalidStateError")]
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#[error("Cannot decode image '{0}'")]
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InvalidImage(image::ImageError),
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#[class("DOMExceptionInvalidStateError")]
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#[error(
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"The chunk data is not big enough with the specified width: {0} and height: {1}"
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)]
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NotBigEnoughChunk(u32, u32),
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#[class("DOMExceptionInvalidStateError")]
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#[error("The width: {0} or height: {1} could not be zero")]
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InvalidSizeZero(u32, u32),
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#[class(generic)]
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#[error(transparent)]
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Lcms(#[from] lcms2::Error),
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#[class(generic)]
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#[error(transparent)]
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Image(#[from] image::ImageError),
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}
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impl CanvasError {
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/// Convert an [`image::ImageError`] to an [`CanvasError::InvalidImage`].
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fn image_error_to_invalid_image(error: image::ImageError) -> Self {
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CanvasError::InvalidImage(error)
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}
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}
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deno_core::extension!(
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deno_canvas,
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deps = [deno_webidl, deno_web, deno_webgpu],
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ops = [op_create_image_bitmap],
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lazy_loaded_esm = ["01_image.js"],
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);
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