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Rustfmt pass

This commit is contained in:
Matteo Paonessa 2024-01-23 18:51:39 +01:00
parent c09613dbc8
commit 8a6de316ce
14 changed files with 353 additions and 179 deletions
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66
src/gif.rs
View File

@ -1,7 +1,8 @@
use std::ffi::CString;
use std::os::raw::{c_int, c_void};
use crate::{CaesiumError, CSParameters};
use crate::utils::CaesiumError;
use crate::CSParameters;
pub fn compress(
input_path: String,
@ -9,7 +10,10 @@ pub fn compress(
parameters: &CSParameters,
) -> Result<(), CaesiumError> {
if parameters.width > 0 || parameters.height > 0 {
return Err(CaesiumError { message: "GIF resizing is not supported".to_string(), code: 20400 });
return Err(CaesiumError {
message: "GIF resizing is not supported".to_string(),
code: 20400,
});
}
if parameters.optimize {
@ -21,10 +25,22 @@ pub fn compress(
fn lossless(input_path: String, output_path: String) -> Result<(), CaesiumError> {
let args: Vec<CString> = vec![
CString::new(format!("{:?}", std::env::current_exe())).map_err(|e| CaesiumError { message: e.to_string(), code: 20401 })?,
CString::new(input_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20402 })?,
CString::new(format!("--output={}", output_path)).map_err(|e| CaesiumError { message: e.to_string(), code: 20403 })?,
CString::new("--optimize=3").map_err(|e| CaesiumError { message: e.to_string(), code: 20404 })?,
CString::new(format!("{:?}", std::env::current_exe())).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20401,
})?,
CString::new(input_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20402,
})?,
CString::new(format!("--output={}", output_path)).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20403,
})?,
CString::new("--optimize=3").map_err(|e| CaesiumError {
message: e.to_string(),
code: 20404,
})?,
];
let argv: Vec<_> = args.iter().map(|a| a.as_ptr()).collect();
@ -34,7 +50,10 @@ fn lossless(input_path: String, output_path: String) -> Result<(), CaesiumError>
match result {
0 => Ok(()),
_ => Err(CaesiumError { message: "GIF optimization failed!".to_string(), code: 20405 }),
_ => Err(CaesiumError {
message: "GIF optimization failed!".to_string(),
code: 20405,
}),
}
}
}
@ -46,12 +65,32 @@ pub fn lossy(
) -> Result<(), CaesiumError> {
unsafe {
let input_file = libc::fopen(
CString::new(input_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20406 })?.as_ptr(),
CString::new("r").map_err(|e| CaesiumError { message: e.to_string(), code: 20407 })?.as_ptr(),
CString::new(input_path)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20406,
})?
.as_ptr(),
CString::new("r")
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20407,
})?
.as_ptr(),
);
let output_file = libc::fopen(
CString::new(output_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20408 })?.as_ptr(),
CString::new("w+").map_err(|e| CaesiumError { message: e.to_string(), code: 20409 })?.as_ptr(),
CString::new(output_path)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20408,
})?
.as_ptr(),
CString::new("w+")
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20409,
})?
.as_ptr(),
);
let input_stream = gifsicle::Gif_ReadFile(input_file);
libc::fclose(input_file);
@ -69,7 +108,10 @@ pub fn lossy(
match write_result {
1 => Ok(()),
_ => Err(CaesiumError { message: "GIF optimization failed!".to_string(), code: 20410 }),
_ => Err(CaesiumError {
message: "GIF optimization failed!".to_string(),
code: 20410,
}),
}
}
}

62
src/jpeg.rs
View File

@ -1,16 +1,17 @@
use std::{fs, ptr};
use std::{mem};
use std::fs::File;
use std::io::Write;
use std::mem;
use std::panic::catch_unwind;
use std::{fs, ptr};
use image::ImageOutputFormat::Jpeg;
use img_parts::{DynImage, ImageEXIF, ImageICC};
use libc::free;
use mozjpeg_sys::*;
use crate::{CaesiumError, CSParameters};
use crate::resize::resize;
use crate::utils::CaesiumError;
use crate::CSParameters;
static mut JPEG_ERROR: c_int = 0;
@ -28,16 +29,27 @@ pub fn compress(
output_path: String,
parameters: &CSParameters,
) -> Result<(), CaesiumError> {
let in_file = fs::read(input_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20100 })?;
let in_file = fs::read(input_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20100,
})?;
let out_buffer = compress_to_memory(in_file, parameters)?;
let mut out_file = File::create(output_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20101 })?;
out_file.write_all(&out_buffer).map_err(|e| CaesiumError { message: e.to_string(), code: 20102 })?;
let mut out_file = File::create(output_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20101,
})?;
out_file.write_all(&out_buffer).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20102,
})?;
Ok(())
}
pub fn compress_to_memory(mut in_file: Vec<u8>, parameters: &CSParameters) -> Result<Vec<u8>, CaesiumError>
{
pub fn compress_to_memory(
mut in_file: Vec<u8>,
parameters: &CSParameters,
) -> Result<Vec<u8>, CaesiumError> {
if parameters.width > 0 || parameters.height > 0 {
if parameters.keep_metadata {
let metadata = extract_metadata(in_file.clone());
@ -55,14 +67,17 @@ pub fn compress_to_memory(mut in_file: Vec<u8>, parameters: &CSParameters) -> Re
} else {
lossy(in_file, parameters)
}
}).unwrap_or_else(|_| Err(CaesiumError { message: format!("Internal JPEG error: {}", JPEG_ERROR), code: 20104 }))
})
.unwrap_or_else(|_| {
Err(CaesiumError {
message: format!("Internal JPEG error: {}", JPEG_ERROR),
code: 20104,
})
})
}
}
unsafe fn lossless(
in_file: Vec<u8>,
parameters: &CSParameters,
) -> Result<Vec<u8>, CaesiumError> {
unsafe fn lossless(in_file: Vec<u8>, parameters: &CSParameters) -> Result<Vec<u8>, CaesiumError> {
let mut src_info: jpeg_decompress_struct = mem::zeroed();
let mut src_err = mem::zeroed();
@ -110,10 +125,7 @@ unsafe fn lossless(
jpeg_finish_decompress(&mut src_info);
jpeg_destroy_decompress(&mut src_info);
let slice = std::slice::from_raw_parts(
buf,
buf_size as usize,
);
let slice = std::slice::from_raw_parts(buf, buf_size as usize);
let result = slice.to_vec();
@ -214,10 +226,7 @@ unsafe fn lossy(in_file: Vec<u8>, parameters: &CSParameters) -> Result<Vec<u8>,
jpeg_finish_compress(&mut dst_info);
jpeg_destroy_compress(&mut dst_info);
let slice = std::slice::from_raw_parts(
buf,
buf_size as usize,
);
let slice = std::slice::from_raw_parts(buf, buf_size as usize);
let result = slice.to_vec();
@ -265,7 +274,10 @@ fn save_metadata(
}
}
unsafe fn write_metadata(src_info: &mut jpeg_decompress_struct, dst_info: &mut jpeg_compress_struct) {
unsafe fn write_metadata(
src_info: &mut jpeg_decompress_struct,
dst_info: &mut jpeg_compress_struct,
) {
let mut marker = src_info.marker_list;
while !marker.is_null() {
@ -279,8 +291,10 @@ unsafe fn write_metadata(src_info: &mut jpeg_decompress_struct, dst_info: &mut j
}
}
unsafe fn set_chroma_subsampling(subsampling: ChromaSubsampling, dst_info: &mut jpeg_compress_struct)
{
unsafe fn set_chroma_subsampling(
subsampling: ChromaSubsampling,
dst_info: &mut jpeg_compress_struct,
) {
(*dst_info.comp_info.add(1)).h_samp_factor = 1;
(*dst_info.comp_info.add(1)).v_samp_factor = 1;
(*dst_info.comp_info.add(2)).h_samp_factor = 1;

138
src/lib.rs
View File

@ -1,30 +1,14 @@
extern crate alloc;
use crate::jpeg::ChromaSubsampling;
use crate::utils::{get_filetype_from_memory, get_filetype_from_path, SupportedFileTypes};
use alloc::ffi::CString;
use std::{cmp, fs};
use std::ffi::CStr;
use std::fs::File;
use std::io::Write;
use std::os::raw::c_char;
use crate::jpeg::ChromaSubsampling;
use crate::utils::{get_filetype_from_memory, get_filetype_from_path, SupportedFileTypes};
use std::fmt;
type Result<T> = std::result::Result<T, CaesiumError>;
#[derive(Debug, Clone)]
pub struct CaesiumError {
pub message: String,
pub code: u32,
}
impl fmt::Display for CaesiumError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{} [{}]", self.message, self.code)
}
}
use std::{cmp, fs};
use utils::CaesiumError;
#[cfg(feature = "gif")]
mod gif;
@ -144,7 +128,7 @@ pub unsafe extern "C" fn c_compress_to_size(
output_path: *const c_char,
params: CCSParameters,
max_output_size: usize,
return_smallest: bool
return_smallest: bool,
) -> CCSResult {
let mut parameters = c_set_parameters(params);
@ -153,11 +137,11 @@ pub unsafe extern "C" fn c_compress_to_size(
CStr::from_ptr(output_path).to_str().unwrap().to_string(),
&mut parameters,
max_output_size,
return_smallest
return_smallest,
))
}
fn c_return_result(result: Result<()>) -> CCSResult {
fn c_return_result(result: utils::Result<()>) -> CCSResult {
let mut error_message = CString::new("").unwrap();
match result {
@ -201,7 +185,7 @@ fn c_set_parameters(params: CCSParameters) -> CSParameters {
422 => ChromaSubsampling::CS422,
420 => ChromaSubsampling::CS420,
411 => ChromaSubsampling::CS411,
_ => ChromaSubsampling::Auto
_ => ChromaSubsampling::Auto,
};
parameters
@ -211,7 +195,7 @@ pub fn compress(
input_path: String,
output_path: String,
parameters: &CSParameters,
) -> Result<()> {
) -> utils::Result<()> {
validate_parameters(parameters)?;
let file_type = get_filetype_from_path(&input_path);
@ -232,10 +216,12 @@ pub fn compress(
SupportedFileTypes::Gif => {
gif::compress(input_path, output_path, parameters)?;
}
_ => return Err(CaesiumError {
_ => {
return Err(CaesiumError {
message: "Unknown file type".into(),
code: 10000,
}),
})
}
}
Ok(())
@ -244,25 +230,21 @@ pub fn compress(
pub fn compress_in_memory(
in_file: Vec<u8>,
parameters: &mut CSParameters,
) -> Result<Vec<u8>> {
) -> utils::Result<Vec<u8>> {
let file_type = get_filetype_from_memory(in_file.as_slice());
let compressed_file = match file_type {
#[cfg(feature = "jpg")]
SupportedFileTypes::Jpeg => {
jpeg::compress_to_memory(in_file, parameters)?
}
SupportedFileTypes::Jpeg => jpeg::compress_to_memory(in_file, parameters)?,
#[cfg(feature = "png")]
SupportedFileTypes::Png => {
png::compress_to_memory(in_file, parameters)?
}
SupportedFileTypes::Png => png::compress_to_memory(in_file, parameters)?,
#[cfg(feature = "webp")]
SupportedFileTypes::WebP => {
webp::compress_to_memory(in_file, parameters)?
}
_ => return Err(CaesiumError {
SupportedFileTypes::WebP => webp::compress_to_memory(in_file, parameters)?,
_ => {
return Err(CaesiumError {
message: "Format not supported for compression to size".into(),
code: 10200,
}),
})
}
};
Ok(compressed_file)
@ -272,8 +254,8 @@ pub fn compress_to_size_in_memory(
in_file: Vec<u8>,
parameters: &mut CSParameters,
max_output_size: usize,
return_smallest: bool
) -> Result<Vec<u8>> {
return_smallest: bool,
) -> utils::Result<Vec<u8>> {
let file_type = get_filetype_from_memory(&in_file);
let tolerance_percentage = 2;
@ -308,15 +290,19 @@ pub fn compress_to_size_in_memory(
parameters.webp.quality = quality;
webp::compress_to_memory(in_file.clone(), parameters)? //TODO clone
}
_ => return Err(CaesiumError {
_ => {
return Err(CaesiumError {
message: "Format not supported for compression to size".into(),
code: 10200,
}),
})
}
};
let compressed_file_size = compressed_file.len();
if compressed_file_size <= max_output_size && max_output_size - compressed_file_size < tolerance {
if compressed_file_size <= max_output_size
&& max_output_size - compressed_file_size < tolerance
{
break compressed_file;
}
@ -332,8 +318,11 @@ pub fn compress_to_size_in_memory(
return if return_smallest {
Ok(compressed_file)
} else {
Err(CaesiumError { message: "Cannot compress to desired quality".into(), code: 10202 })
}
Err(CaesiumError {
message: "Cannot compress to desired quality".into(),
code: 10202,
})
};
}
break compressed_file;
@ -350,41 +339,70 @@ pub fn compress_to_size(
output_path: String,
parameters: &mut CSParameters,
max_output_size: usize,
return_smallest: bool
) -> Result<()>
{
let in_file = fs::read(input_path.clone()).map_err(|e| CaesiumError { message: e.to_string(), code: 10201 })?;
return_smallest: bool,
) -> utils::Result<()> {
let in_file = fs::read(input_path.clone()).map_err(|e| CaesiumError {
message: e.to_string(),
code: 10201,
})?;
let original_size = in_file.len();
if original_size <= max_output_size {
fs::copy(input_path, output_path).map_err(|e| CaesiumError { message: e.to_string(), code: 10202 })?;
fs::copy(input_path, output_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 10202,
})?;
return Ok(());
}
let compressed_file = compress_to_size_in_memory(in_file, parameters, max_output_size, return_smallest)?;
let mut out_file = File::create(output_path).map_err(|e| CaesiumError { message: e.to_string(), code: 10203 })?;
out_file.write_all(&compressed_file).map_err(|e| CaesiumError { message: e.to_string(), code: 10204 })?;
let compressed_file =
compress_to_size_in_memory(in_file, parameters, max_output_size, return_smallest)?;
let mut out_file = File::create(output_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 10203,
})?;
out_file
.write_all(&compressed_file)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 10204,
})?;
Ok(())
}
fn validate_parameters(parameters: &CSParameters) -> Result<()> {
fn validate_parameters(parameters: &CSParameters) -> utils::Result<()> {
if parameters.jpeg.quality == 0 || parameters.jpeg.quality > 100 {
return Err(CaesiumError { message: "Invalid JPEG quality value".into(), code: 10001 });
return Err(CaesiumError {
message: "Invalid JPEG quality value".into(),
code: 10001,
});
}
if parameters.png.quality > 100 {
return Err(CaesiumError { message: "Invalid PNG quality value".into(), code: 10002 });
return Err(CaesiumError {
message: "Invalid PNG quality value".into(),
code: 10002,
});
}
if parameters.gif.quality > 100 {
return Err(CaesiumError { message: "Invalid GIF quality value".into(), code: 10003 });
return Err(CaesiumError {
message: "Invalid GIF quality value".into(),
code: 10003,
});
}
if parameters.webp.quality > 100 {
return Err(CaesiumError { message: "Invalid WebP quality value".into(), code: 10004 });
return Err(CaesiumError {
message: "Invalid WebP quality value".into(),
code: 10004,
});
}
if parameters.optimize && parameters.output_size > 0 {
return Err(CaesiumError { message: "Cannot compress to desired size with lossless optimization".into(), code: 10005 });
return Err(CaesiumError {
message: "Cannot compress to desired size with lossless optimization".into(),
code: 10005,
});
}
Ok(())

89
src/png.rs
View File

@ -1,4 +1,4 @@
use std::{fs};
use std::fs;
use std::fs::File;
use std::io::Write;
use std::num::NonZeroU8;
@ -6,29 +6,48 @@ use std::num::NonZeroU8;
use image::ImageOutputFormat;
use oxipng::Deflaters::{Libdeflater, Zopfli};
use crate::{CaesiumError, CSParameters};
use crate::resize::resize;
use crate::utils::CaesiumError;
use crate::CSParameters;
pub fn compress(
input_path: String,
output_path: String,
parameters: &CSParameters,
) -> Result<(), CaesiumError> {
let mut in_file = fs::read(input_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20200 })?;
let mut in_file = fs::read(input_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20200,
})?;
if parameters.width > 0 || parameters.height > 0 {
in_file = resize(in_file, parameters.width, parameters.height, ImageOutputFormat::Png)?;
in_file = resize(
in_file,
parameters.width,
parameters.height,
ImageOutputFormat::Png,
)?;
}
let optimized_png = compress_to_memory(in_file, parameters)?;
let mut output_file_buffer = File::create(output_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20202 })?;
output_file_buffer.write_all(optimized_png.as_slice()).map_err(|e| CaesiumError { message: e.to_string(), code: 20203 })?;
let mut output_file_buffer = File::create(output_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20202,
})?;
output_file_buffer
.write_all(optimized_png.as_slice())
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20203,
})?;
Ok(())
}
pub fn compress_to_memory(in_file: Vec<u8>, parameters: &CSParameters) -> Result<Vec<u8>, CaesiumError>
{
pub fn compress_to_memory(
in_file: Vec<u8>,
parameters: &CSParameters,
) -> Result<Vec<u8>, CaesiumError> {
let optimized_png: Vec<u8> = if parameters.optimize {
lossless(in_file, parameters)?
} else {
@ -39,25 +58,55 @@ pub fn compress_to_memory(in_file: Vec<u8>, parameters: &CSParameters) -> Result
}
fn lossy(in_file: Vec<u8>, parameters: &CSParameters) -> Result<Vec<u8>, CaesiumError> {
let rgba_bitmap = lodepng::decode32(in_file).map_err(|e| CaesiumError { message: e.to_string(), code: 20204 })?;
let rgba_bitmap = lodepng::decode32(in_file).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20204,
})?;
let mut liq = imagequant::new();
liq.set_quality(0, parameters.png.quality as u8).map_err(|e| CaesiumError { message: e.to_string(), code: 20205 })?;
liq.set_quality(0, parameters.png.quality as u8)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20205,
})?;
let mut liq_image = liq.new_image(
let mut liq_image = liq
.new_image(
rgba_bitmap.buffer.as_slice(),
rgba_bitmap.width,
rgba_bitmap.height,
0.0,
).map_err(|e| CaesiumError { message: e.to_string(), code: 20206 })?;
)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20206,
})?;
let mut quantization = liq.quantize(&mut liq_image).map_err(|e| CaesiumError { message: e.to_string(), code: 20207 })?;
let mut quantization = liq.quantize(&mut liq_image).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20207,
})?;
let (palette, pixels) = quantization.remapped(&mut liq_image).map_err(|e| CaesiumError { message: e.to_string(), code: 20208 })?;
let (palette, pixels) = quantization
.remapped(&mut liq_image)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20208,
})?;
let mut encoder = lodepng::Encoder::new();
encoder.set_palette(palette.as_slice()).map_err(|e| CaesiumError { message: e.to_string(), code: 20212 })?;
let png_vec = encoder.encode(pixels.as_slice(), rgba_bitmap.width, rgba_bitmap.height).map_err(|e| CaesiumError { message: e.to_string(), code: 20209 })?;
encoder
.set_palette(palette.as_slice())
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20212,
})?;
let png_vec = encoder
.encode(pixels.as_slice(), rgba_bitmap.width, rgba_bitmap.height)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20209,
})?;
Ok(png_vec)
}
@ -77,7 +126,13 @@ fn lossless(in_file: Vec<u8>, parameters: &CSParameters) -> Result<Vec<u8>, Caes
oxipng_options.deflate = Libdeflater { compression: 6 };
}
let optimized_png = oxipng::optimize_from_memory(in_file.as_slice(), &oxipng_options).map_err(|e| CaesiumError { message: e.to_string(), code: 20210 })?;
let optimized_png =
oxipng::optimize_from_memory(in_file.as_slice(), &oxipng_options).map_err(|e| {
CaesiumError {
message: e.to_string(),
code: 20210,
}
})?;
Ok(optimized_png)
}

27
src/resize.rs
View File

@ -1,9 +1,9 @@
use std::io::Cursor;
use image::DynamicImage;
use crate::utils::CaesiumError;
use image::imageops::FilterType;
use image::io::Reader as ImageReader;
use crate::CaesiumError;
use image::DynamicImage;
pub fn resize(
image_buffer: Vec<u8>,
@ -13,24 +13,31 @@ pub fn resize(
) -> Result<Vec<u8>, CaesiumError> {
let mut image = ImageReader::new(Cursor::new(image_buffer))
.with_guessed_format()
.map_err(|e| CaesiumError { message: e.to_string(), code: 10300 })?
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 10300,
})?
.decode()
.map_err(|e| CaesiumError { message: e.to_string(), code: 10301 })?;
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 10301,
})?;
let dimensions = compute_dimensions(image.width(), image.height(), width, height);
image = image.resize_exact(dimensions.0, dimensions.1, FilterType::Lanczos3);
let mut resized_file: Vec<u8> = vec![];
image.write_to(&mut Cursor::new(&mut resized_file), format).map_err(|e| CaesiumError { message: e.to_string(), code: 10302 })?;
image
.write_to(&mut Cursor::new(&mut resized_file), format)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 10302,
})?;
Ok(resized_file)
}
pub fn resize_image(
image: DynamicImage,
width: u32,
height: u32,
) -> DynamicImage {
pub fn resize_image(image: DynamicImage, width: u32, height: u32) -> DynamicImage {
let dimensions = compute_dimensions(image.width(), image.height(), width, height);
image.resize_exact(dimensions.0, dimensions.1, FilterType::Lanczos3)
}

18
src/utils.rs
View File

@ -1,3 +1,4 @@
use core::fmt;
use infer::Type;
pub enum SupportedFileTypes {
@ -12,7 +13,7 @@ pub fn get_filetype_from_path(file_path: &str) -> SupportedFileTypes {
match infer::get_from_path(file_path) {
Ok(v) => match v {
None => SupportedFileTypes::Unkn,
Some(ft) => match_supported_filetypes(ft)
Some(ft) => match_supported_filetypes(ft),
},
Err(_) => SupportedFileTypes::Unkn,
}
@ -21,7 +22,7 @@ pub fn get_filetype_from_path(file_path: &str) -> SupportedFileTypes {
pub fn get_filetype_from_memory(buf: &[u8]) -> SupportedFileTypes {
match infer::get(buf) {
None => SupportedFileTypes::Unkn,
Some(ft) => match_supported_filetypes(ft)
Some(ft) => match_supported_filetypes(ft),
}
}
@ -35,3 +36,16 @@ fn match_supported_filetypes(ft: Type) -> SupportedFileTypes {
}
}
pub type Result<T> = std::result::Result<T, CaesiumError>;
#[derive(Debug, Clone)]
pub struct CaesiumError {
pub message: String,
pub code: u32,
}
impl fmt::Display for CaesiumError {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
write!(f, "{} [{}]", self.message, self.code)
}
}

41
src/webp.rs
View File

@ -2,34 +2,55 @@ use std::fs::File;
use std::io::{Read, Write};
use std::ops::Deref;
use crate::{CaesiumError, CSParameters};
use crate::resize::resize_image;
use crate::utils::CaesiumError;
use crate::CSParameters;
pub fn compress(
input_path: String,
output_path: String,
parameters: &CSParameters,
) -> Result<(), CaesiumError> {
let mut input_file = File::open(input_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20300 })?;
let mut input_file = File::open(input_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20300,
})?;
let mut input_data = Vec::new();
input_file.read_to_end(&mut input_data).map_err(|e| CaesiumError { message: e.to_string(), code: 20301 })?;
input_file
.read_to_end(&mut input_data)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20301,
})?;
let mut output_file = File::create(output_path).map_err(|e| CaesiumError { message: e.to_string(), code: 20302 })?;
let mut output_file = File::create(output_path).map_err(|e| CaesiumError {
message: e.to_string(),
code: 20302,
})?;
let compressed_image = compress_to_memory(input_data, parameters)?;
output_file.write_all(&compressed_image).map_err(|e| CaesiumError { message: e.to_string(), code: 20303 })?;
output_file
.write_all(&compressed_image)
.map_err(|e| CaesiumError {
message: e.to_string(),
code: 20303,
})?;
Ok(())
}
pub fn compress_to_memory(in_file: Vec<u8>, parameters: &CSParameters) -> Result<Vec<u8>, CaesiumError>
{
pub fn compress_to_memory(
in_file: Vec<u8>,
parameters: &CSParameters,
) -> Result<Vec<u8>, CaesiumError> {
let decoder = webp::Decoder::new(&in_file);
let input_webp = match decoder.decode() {
Some(img) => img,
None => return Err(CaesiumError {
None => {
return Err(CaesiumError {
message: "Error decoding WebP image".to_string(),
code: 20304,
})
}
};
let mut input_image = input_webp.to_image();
let must_resize = parameters.width > 0 || parameters.height > 0;
@ -39,10 +60,12 @@ pub fn compress_to_memory(in_file: Vec<u8>, parameters: &CSParameters) -> Result
let encoder = match webp::Encoder::from_image(&input_image) {
Ok(encoder) => encoder,
Err(e) => return Err(CaesiumError {
Err(e) => {
return Err(CaesiumError {
message: e.to_string(),
code: 20305,
})
}
};
let encoded_image = if parameters.optimize {

22
tests/compress_to_size.rs
View File

@ -1,6 +1,6 @@
use crate::cleanup::remove_compressed_test_file;
use std::fs::File;
use std::sync::Once;
use crate::cleanup::remove_compressed_test_file;
mod cleanup;
@ -22,8 +22,9 @@ fn compress_to_1_byte() {
String::from(output),
&mut pars,
1,
false
).expect_err("Cannot compress to desired quality");
false,
)
.expect_err("Cannot compress to desired quality");
remove_compressed_test_file(output)
}
@ -37,8 +38,9 @@ fn compress_to_1_byte_and_return() {
String::from(output),
&mut pars,
1,
true
).unwrap();
true,
)
.unwrap();
assert!(std::path::Path::new(output).exists());
assert!(File::open(output).unwrap().metadata().unwrap().len() > 1);
@ -58,8 +60,9 @@ fn compress_to_10_mb() {
String::from(output),
&mut pars,
max_output_size,
false
).unwrap();
false,
)
.unwrap();
assert_eq!(80, pars.jpeg.quality);
assert!(std::path::Path::new(output).exists());
@ -83,8 +86,9 @@ fn compress_to_range() {
String::from(output),
&mut pars,
max_output_size,
false
).unwrap();
false,
)
.unwrap();
assert!(std::path::Path::new(output).exists());
assert!(File::open(output).unwrap().metadata().unwrap().len() < max_output_size as u64);

6
tests/gif.rs
View File

@ -1,14 +1,12 @@
use std::sync::Once;
use crate::cleanup::remove_compressed_test_file;
use std::sync::Once;
mod cleanup;
static INIT: Once = Once::new();
pub fn initialize(file: &str) {
INIT.call_once(|| {
remove_compressed_test_file(file)
});
INIT.call_once(|| remove_compressed_test_file(file));
}
// #[test]

8
tests/jpeg.rs
View File

@ -1,6 +1,6 @@
use crate::cleanup::remove_compressed_test_file;
use dssim::Val;
use std::sync::Once;
use crate::cleanup::remove_compressed_test_file;
mod cleanup;
@ -106,7 +106,8 @@ fn compress_corrupted_lossy() {
String::from("tests/samples/corrupted.jpg"),
String::from(output),
&pars,
).is_err())
)
.is_err())
}
#[test]
@ -142,7 +143,8 @@ fn compress_corrupted_lossless() {
String::from("tests/samples/corrupted.jpg"),
String::from(output),
&pars,
).is_err());
)
.is_err());
}
#[test]

5
tests/metadata.rs
View File

@ -86,10 +86,7 @@ fn extract_exif(path: &Path) -> HashMap<String, String> {
let exif = exif_reader.read_from_container(&mut bufreader).unwrap();
let mut exif_map = HashMap::new();
for f in exif.fields() {
exif_map.insert(
format!("{}", f.tag),
f.display_value().to_string(),
);
exif_map.insert(format!("{}", f.tag), f.display_value().to_string());
}
exif_map

2
tests/png.rs
View File

@ -1,5 +1,5 @@
use std::sync::Once;
use crate::cleanup::remove_compressed_test_file;
use std::sync::Once;
mod cleanup;