zune_image/codecs/
psd.rs

1/*
2 * Copyright (c) 2023.
3 *
4 * This software is free software;
5 *
6 * You can redistribute it or modify it under terms of the MIT, Apache License or Zlib license
7 */
8
9//! Photoshop (.psd) decoding support
10//!
11//! This uses the delegate library [`zune-psd`](zune_psd)
12//! for decoding images
13#![cfg(feature = "psd")]
14#![cfg_attr(feature = "docs", doc(cfg(feature = "psd")))]
15
16use zune_core::bytestream::ZByteReaderTrait;
17use zune_core::colorspace::ColorSpace;
18use zune_core::result::DecodingResult;
19pub use zune_psd::*;
20
21use crate::codecs::ImageFormat;
22use crate::errors::ImageErrors;
23use crate::image::Image;
24use crate::metadata::ImageMetadata;
25use crate::traits::DecoderTrait;
26
27impl<T> DecoderTrait for PSDDecoder<T>
28where
29    T: ZByteReaderTrait
30{
31    fn decode(&mut self) -> Result<Image, ImageErrors> {
32        let pixels = self.decode()?;
33
34        let depth = self.bit_depth().unwrap();
35        let (width, height) = self.dimensions().unwrap();
36        let colorspace = self.colorspace().unwrap();
37
38        let mut image = match pixels {
39            DecodingResult::U8(data) => Image::from_u8(&data, width, height, colorspace),
40            DecodingResult::U16(data) => Image::from_u16(&data, width, height, colorspace),
41            _ => unreachable!()
42        };
43        // set metadata details
44        image.metadata.format = Some(ImageFormat::PSD);
45
46        Ok(image)
47    }
48
49    fn dimensions(&self) -> Option<(usize, usize)> {
50        self.dimensions()
51    }
52
53    fn out_colorspace(&self) -> ColorSpace {
54        self.colorspace().unwrap()
55    }
56
57    fn name(&self) -> &'static str {
58        "PSD Decoder"
59    }
60
61    fn is_experimental(&self) -> bool {
62        true
63    }
64
65    fn read_headers(&mut self) -> Result<Option<ImageMetadata>, crate::errors::ImageErrors> {
66        self.decode_headers()
67            .map_err(<errors::PSDDecodeErrors as Into<ImageErrors>>::into)?;
68
69        let (width, height) = self.dimensions().unwrap();
70        let depth = self.bit_depth().unwrap();
71
72        let metadata = ImageMetadata {
73            format: Some(ImageFormat::PSD),
74            colorspace: self.colorspace().unwrap(),
75            depth: depth,
76            width: width,
77            height: height,
78            ..Default::default()
79        };
80
81        Ok(Some(metadata))
82    }
83}
84
85impl From<zune_psd::errors::PSDDecodeErrors> for ImageErrors {
86    fn from(error: zune_psd::errors::PSDDecodeErrors) -> Self {
87        let err = format!("psd: {error:?}");
88
89        ImageErrors::ImageDecodeErrors(err)
90    }
91}
zune_image/codecs/psd.rs

zune_image/codecs/
psd.rs
