From a990de90fe41456a23e58bd087d2f107d321f3a1 Mon Sep 17 00:00:00 2001 From: Valentin Popov Date: Fri, 19 Jul 2024 16:37:58 +0400 Subject: Deleted vendor folder --- vendor/image/src/codecs/tga/header.rs | 150 ---------------------------------- 1 file changed, 150 deletions(-) delete mode 100644 vendor/image/src/codecs/tga/header.rs (limited to 'vendor/image/src/codecs/tga/header.rs') diff --git a/vendor/image/src/codecs/tga/header.rs b/vendor/image/src/codecs/tga/header.rs deleted file mode 100644 index 83ba7a3..0000000 --- a/vendor/image/src/codecs/tga/header.rs +++ /dev/null @@ -1,150 +0,0 @@ -use crate::{ - error::{UnsupportedError, UnsupportedErrorKind}, - ColorType, ImageError, ImageFormat, ImageResult, -}; -use byteorder::{LittleEndian, ReadBytesExt, WriteBytesExt}; -use std::io::{Read, Write}; - -pub(crate) const ALPHA_BIT_MASK: u8 = 0b1111; -pub(crate) const SCREEN_ORIGIN_BIT_MASK: u8 = 0b10_0000; - -pub(crate) enum ImageType { - NoImageData = 0, - /// Uncompressed images. - RawColorMap = 1, - RawTrueColor = 2, - RawGrayScale = 3, - /// Run length encoded images. - RunColorMap = 9, - RunTrueColor = 10, - RunGrayScale = 11, - Unknown, -} - -impl ImageType { - /// Create a new image type from a u8. - pub(crate) fn new(img_type: u8) -> ImageType { - match img_type { - 0 => ImageType::NoImageData, - - 1 => ImageType::RawColorMap, - 2 => ImageType::RawTrueColor, - 3 => ImageType::RawGrayScale, - - 9 => ImageType::RunColorMap, - 10 => ImageType::RunTrueColor, - 11 => ImageType::RunGrayScale, - - _ => ImageType::Unknown, - } - } - - /// Check if the image format uses colors as opposed to gray scale. - pub(crate) fn is_color(&self) -> bool { - matches! { *self, - ImageType::RawColorMap - | ImageType::RawTrueColor - | ImageType::RunTrueColor - | ImageType::RunColorMap - } - } - - /// Does the image use a color map. - pub(crate) fn is_color_mapped(&self) -> bool { - matches! { *self, ImageType::RawColorMap | ImageType::RunColorMap } - } - - /// Is the image run length encoded. - pub(crate) fn is_encoded(&self) -> bool { - matches! {*self, ImageType::RunColorMap | ImageType::RunTrueColor | ImageType::RunGrayScale } - } -} - -/// Header used by TGA image files. -#[derive(Debug, Default)] -pub(crate) struct Header { - pub(crate) id_length: u8, // length of ID string - pub(crate) map_type: u8, // color map type - pub(crate) image_type: u8, // image type code - pub(crate) map_origin: u16, // starting index of map - pub(crate) map_length: u16, // length of map - pub(crate) map_entry_size: u8, // size of map entries in bits - pub(crate) x_origin: u16, // x-origin of image - pub(crate) y_origin: u16, // y-origin of image - pub(crate) image_width: u16, // width of image - pub(crate) image_height: u16, // height of image - pub(crate) pixel_depth: u8, // bits per pixel - pub(crate) image_desc: u8, // image descriptor -} - -impl Header { - /// Load the header with values from pixel information. - pub(crate) fn from_pixel_info( - color_type: ColorType, - width: u16, - height: u16, - ) -> ImageResult { - let mut header = Self::default(); - - if width > 0 && height > 0 { - let (num_alpha_bits, other_channel_bits, image_type) = match color_type { - ColorType::Rgba8 => (8, 24, ImageType::RawTrueColor), - ColorType::Rgb8 => (0, 24, ImageType::RawTrueColor), - ColorType::La8 => (8, 8, ImageType::RawGrayScale), - ColorType::L8 => (0, 8, ImageType::RawGrayScale), - _ => { - return Err(ImageError::Unsupported( - UnsupportedError::from_format_and_kind( - ImageFormat::Tga.into(), - UnsupportedErrorKind::Color(color_type.into()), - ), - )) - } - }; - - header.image_type = image_type as u8; - header.image_width = width; - header.image_height = height; - header.pixel_depth = num_alpha_bits + other_channel_bits; - header.image_desc = num_alpha_bits & ALPHA_BIT_MASK; - header.image_desc |= SCREEN_ORIGIN_BIT_MASK; // Upper left origin. - } - - Ok(header) - } - - /// Load the header with values from the reader. - pub(crate) fn from_reader(r: &mut dyn Read) -> ImageResult { - Ok(Self { - id_length: r.read_u8()?, - map_type: r.read_u8()?, - image_type: r.read_u8()?, - map_origin: r.read_u16::()?, - map_length: r.read_u16::()?, - map_entry_size: r.read_u8()?, - x_origin: r.read_u16::()?, - y_origin: r.read_u16::()?, - image_width: r.read_u16::()?, - image_height: r.read_u16::()?, - pixel_depth: r.read_u8()?, - image_desc: r.read_u8()?, - }) - } - - /// Write out the header values. - pub(crate) fn write_to(&self, w: &mut dyn Write) -> ImageResult<()> { - w.write_u8(self.id_length)?; - w.write_u8(self.map_type)?; - w.write_u8(self.image_type)?; - w.write_u16::(self.map_origin)?; - w.write_u16::(self.map_length)?; - w.write_u8(self.map_entry_size)?; - w.write_u16::(self.x_origin)?; - w.write_u16::(self.y_origin)?; - w.write_u16::(self.image_width)?; - w.write_u16::(self.image_height)?; - w.write_u8(self.pixel_depth)?; - w.write_u8(self.image_desc)?; - Ok(()) - } -} -- cgit v1.2.3