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capture.rs
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capture.rs
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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
use std::fs::File;
use std::path::{Path, PathBuf};
use api::{CaptureBits, ExternalImageData, ImageDescriptor};
use api::units::TexelRect;
#[cfg(feature = "png")]
use api::units::DeviceIntSize;
#[cfg(feature = "png")]
use device::ReadPixelsFormat;
#[cfg(feature = "capture")]
use print_tree::{PrintableTree, PrintTree};
use ron;
use serde;
#[derive(Clone)]
pub struct CaptureConfig {
pub root: PathBuf,
pub bits: CaptureBits,
#[cfg(feature = "capture")]
pretty: ron::ser::PrettyConfig,
}
impl CaptureConfig {
#[cfg(feature = "capture")]
pub fn new(root: PathBuf, bits: CaptureBits) -> Self {
CaptureConfig {
root,
bits,
#[cfg(feature = "capture")]
pretty: ron::ser::PrettyConfig {
enumerate_arrays: true,
.. ron::ser::PrettyConfig::default()
},
}
}
#[cfg(feature = "capture")]
pub fn serialize<T, P>(&self, data: &T, name: P)
where
T: serde::Serialize,
P: AsRef<Path>,
{
use std::io::Write;
let ron = ron::ser::to_string_pretty(data, self.pretty.clone())
.unwrap();
let path = self.root
.join(name)
.with_extension("ron");
let mut file = File::create(path)
.unwrap();
write!(file, "{}\n", ron)
.unwrap();
}
#[cfg(feature = "capture")]
pub fn serialize_tree<T, P>(&self, data: &T, name: P)
where
T: PrintableTree,
P: AsRef<Path>
{
let path = self.root
.join(name)
.with_extension("tree");
let file = File::create(path)
.unwrap();
let mut pt = PrintTree::new_with_sink("", file);
data.print_with(&mut pt);
}
#[cfg(feature = "replay")]
pub fn deserialize<T, P>(root: &PathBuf, name: P) -> Option<T>
where
T: for<'a> serde::Deserialize<'a>,
P: AsRef<Path>,
{
use std::io::Read;
let mut string = String::new();
let path = root
.join(name.as_ref())
.with_extension("ron");
File::open(path)
.ok()?
.read_to_string(&mut string)
.unwrap();
match ron::de::from_str(&string) {
Ok(out) => Some(out),
Err(e) => panic!("File {:?} deserialization failed: {:?}", name.as_ref(), e),
}
}
#[cfg(feature = "png")]
pub fn save_png(
path: PathBuf, size: DeviceIntSize, format: ReadPixelsFormat, data: &[u8],
) {
use api::ImageFormat;
use png::{BitDepth, ColorType, Encoder, HasParameters};
use std::io::BufWriter;
let color_type = match format {
ReadPixelsFormat::Rgba8 => ColorType::RGBA,
ReadPixelsFormat::Standard(ImageFormat::BGRA8) => {
warn!("Unable to swizzle PNG of BGRA8 type");
ColorType::RGBA
},
ReadPixelsFormat::Standard(ImageFormat::R8) => ColorType::Grayscale,
ReadPixelsFormat::Standard(ImageFormat::RG8) => ColorType::GrayscaleAlpha,
ReadPixelsFormat::Standard(fm) => {
error!("Unable to save PNG of {:?}", fm);
return;
}
};
let w = BufWriter::new(File::create(path).unwrap());
let mut enc = Encoder::new(w, size.width as u32, size.height as u32);
enc
.set(color_type)
.set(BitDepth::Eight);
enc
.write_header()
.unwrap()
.write_image_data(&data)
.unwrap();
}
}
/// An image that `ResourceCache` is unable to resolve during a capture.
/// The image has to be transferred to `Renderer` and locked with the
/// external image handler to get the actual contents and serialize them.
#[derive(Deserialize, Serialize)]
pub struct ExternalCaptureImage {
pub short_path: String,
pub descriptor: ImageDescriptor,
pub external: ExternalImageData,
}
/// A short description of an external image to be saved separately as
/// "externals/XX.ron", redirecting into a specific texture/blob with
/// the corresponding UV rectangle.
#[derive(Deserialize, Serialize)]
pub struct PlainExternalImage {
/// Path to the RON file describing the texel data.
pub data: String,
/// External image data source.
pub external: ExternalImageData,
/// UV sub-rectangle of the image.
pub uv: TexelRect,
}