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support loading multiple

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This commit is contained in:
Corwin 2022-02-22 20:16:34 +00:00
parent b3db55330a
commit 6e5cee1e3f
3 changed files with 158 additions and 91 deletions
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53
agb-image-converter/src/aseprite.rs
View file

@ -1,3 +1,11 @@
use std::{
fs::File,
path::{Path, PathBuf},
process::Command,
str,
};
use image::DynamicImage;
use serde::Deserialize;
#[derive(Deserialize)]
@ -32,8 +40,7 @@ pub enum Direction {
Pingpong,
}
#[derive(Deserialize)]
#[derive(Deserialize, Clone)]
pub struct FrameTag {
pub name: String,
pub from: u32,
@ -41,16 +48,54 @@ pub struct FrameTag {
pub direction: Direction,
}
#[derive(Deserialize)]
#[derive(Deserialize, Clone)]
pub struct Frame {
pub frame: Frame2,
pub trimmed: bool,
}
#[derive(Deserialize)]
#[derive(Deserialize, Clone)]
pub struct Frame2 {
pub x: u32,
pub y: u32,
pub w: u32,
pub h: u32,
}
pub fn generate_from_file(filename: &str) -> (Aseprite, DynamicImage) {
let out_dir = std::env::var("OUT_DIR").expect("Expected OUT_DIR");
let output_filename = Path::new(&out_dir).join(&*filename);
let image_output = output_filename.with_extension("png");
let json_output = output_filename.with_extension("json");
let command = Command::new("aseprite")
.args([
&PathBuf::from("-b"),
&PathBuf::from(filename),
&"--sheet".into(),
&image_output,
&"--format".into(),
&"json-array".into(),
&"--data".into(),
&json_output,
&"--list-tags".into(),
])
.output()
.expect("Could not run aseprite");
assert!(
command.status.success(),
"Aseprite did not complete successfully : {}",
str::from_utf8(&*command.stdout).unwrap_or("Output contains invalid string")
);
let json: Aseprite = serde_json::from_reader(
File::open(&json_output).expect("The json output from aseprite could not be openned"),
)
.expect("The output from aseprite could not be decoded");
(
json,
image::open(image_output).expect("Image should be readable"),
)
}

4
agb-image-converter/src/image_loader.rs
View file

@ -13,6 +13,10 @@ pub(crate) struct Image {
impl Image {
pub fn load_from_file(image_path: &path::Path) -> Self {
let img = image::open(image_path).expect("Expected image to exist");
Self::load_from_dyn_image(img)
}
pub fn load_from_dyn_image(img: image::DynamicImage) -> Self {
let (width, height) = img.dimensions();
let width = width as usize;

158
agb-image-converter/src/lib.rs
View file

@ -1,16 +1,12 @@
use palette16::Palette16OptimisationResults;
use proc_macro::TokenStream;
use syn::parse_macro_input;
use proc_macro2::Literal;
use syn::parse::Parser;
use syn::{parse_macro_input, punctuated::Punctuated, LitStr};
use std::{
fs::File,
iter,
path::{Path, PathBuf},
process::Command,
str,
};
use std::{iter, path::Path, str};
use quote::{format_ident, quote};
use quote::{format_ident, quote, ToTokens};
mod aseprite;
mod colour;
@ -78,60 +74,65 @@ pub fn include_gfx(input: TokenStream) -> TokenStream {
TokenStream::from(module)
}
use quote::TokenStreamExt;
struct ByteString<'a>(&'a [u8]);
impl ToTokens for ByteString<'_> {
fn to_tokens(&self, tokens: &mut proc_macro2::TokenStream) {
tokens.append(Literal::byte_string(self.0));
}
}
#[proc_macro]
pub fn include_aseprite_inner(input: TokenStream) -> TokenStream {
let input = parse_macro_input!(input as syn::LitStr);
let filename = input.value();
let parser = Punctuated::<LitStr, syn::Token![,]>::parse_separated_nonempty;
let parsed = match parser.parse(input) {
Ok(e) => e,
Err(e) => return e.to_compile_error().into(),
};
let mut optimiser = palette16::Palette16Optimiser::new();
let mut images = Vec::new();
let mut frames = Vec::new();
let mut tags = Vec::new();
let root = std::env::var("CARGO_MANIFEST_DIR").expect("Failed to get cargo manifest dir");
let path = Path::new(&root).join(&*filename);
let out_dir = std::env::var("OUT_DIR").expect("Expected OUT_DIR");
let filenames: Vec<String> = parsed
.iter()
.map(|s| s.value())
.map(|s| {
Path::new(&root)
.join(&*s)
.as_path()
.to_string_lossy()
.into_owned()
})
.collect();
let output_filename = Path::new(&out_dir).join(&*filename);
let image_output = output_filename.with_extension("png");
let json_output = output_filename.with_extension("json");
for filename in filenames.iter() {
let (json, image) = aseprite::generate_from_file(filename);
let tile_size = json.frames[0].frame.w;
let command = Command::new("aseprite")
.args([
&PathBuf::from("-b"),
&path,
&"--sheet".into(),
&image_output,
&"--format".into(),
&"json-array".into(),
&"--data".into(),
&json_output,
&"--list-tags".into(),
])
.output()
.expect("Could not run aseprite");
for frame in json.frames.iter() {
assert!(frame.frame.w == tile_size);
assert!(
command.status.success(),
"Aseprite did not complete successfully : {}",
str::from_utf8(&*command.stdout).unwrap_or("Output contains invalid string")
frame.frame.w == frame.frame.h
&& frame.frame.w.is_power_of_two()
&& frame.frame.w <= 32
);
}
let json: aseprite::Aseprite = serde_json::from_reader(
File::open(&json_output).expect("The json output from aseprite could not be openned"),
)
.expect("The output from aseprite could not be decoded");
let image = Image::load_from_dyn_image(image);
// check that the size of the sprites are valid
add_to_optimiser(&mut optimiser, &image, tile_size as usize);
images.push(image);
frames.push(json.frames.clone());
tags.push(json.meta.frame_tags.clone());
}
assert!(
json.frames[0].frame.w == json.frames[0].frame.h
&& json.frames[0].frame.w.is_power_of_two()
&& json.frames[0].frame.w <= 32
);
let optimised_results = optimiser.optimise_palettes(None);
let image = Image::load_from_file(image_output.as_path());
let optimised_results =
optimiser_for_image(&image, json.frames[0].frame.w as usize).optimise_palettes(None);
let (palette_data, tile_data, assignments) =
palete_tile_data(&optimised_results, json.frames[0].frame.w as usize, &image);
let (palette_data, tile_data, assignments) = palete_tile_data(&optimised_results, &images);
let palette_data = palette_data.iter().map(|colours| {
quote! {
@ -142,31 +143,34 @@ pub fn include_aseprite_inner(input: TokenStream) -> TokenStream {
});
let mut pre = 0;
let sprites = json
.frames
let sprites = frames
.iter()
.flatten()
.zip(assignments.iter())
.map(|(f, assignment)| {
let start: usize = pre;
let end: usize = pre + (f.frame.w as usize / 8) * (f.frame.h as usize / 8) * 32;
let data = &tile_data[start..end];
let data = ByteString(&tile_data[start..end]);
pre = end;
let width = f.frame.w as usize;
let height = f.frame.h as usize;
quote! {
Sprite::new(
&PALETTES[#assignment],
&[
#(#data),*
],
#data,
Size::from_width_height(#width, #height)
)
}
});
let tags = json.meta.frame_tags.iter().map(|tag| {
let start = tag.from as usize;
let end = tag.to as usize;
let tags = tags
.iter()
.enumerate()
.map(|(i, tag)| {
tag.iter().map(move |tag| (i, tag)).map(|(i, tag)| {
let offset: usize = frames[0..i].iter().map(|s| s.len()).sum();
let start = tag.from as usize + offset;
let end = tag.to as usize + offset;
let direction = tag.direction as usize;
let name = &tag.name;
@ -175,12 +179,18 @@ pub fn include_aseprite_inner(input: TokenStream) -> TokenStream {
quote! {
#name => Tag::new(SPRITES, #start, #end, #direction)
}
})
})
.flatten();
let include_paths = filenames.iter().map(|s| {
quote! {
const _: &[u8] = include_bytes!(#s);
}
});
let include_path = path.to_string_lossy();
let module = quote! {
const _: &[u8] = include_bytes!(#include_path);
#(#include_paths)*
const PALETTES: &[Palette16] = &[
@ -230,11 +240,19 @@ fn convert_image(
}
fn optimiser_for_image(image: &Image, tile_size: usize) -> palette16::Palette16Optimiser {
let mut palette_optimiser = palette16::Palette16Optimiser::new();
add_to_optimiser(&mut palette_optimiser, image, tile_size);
palette_optimiser
}
fn add_to_optimiser(
palette_optimiser: &mut palette16::Palette16Optimiser,
image: &Image,
tile_size: usize,
) {
let tiles_x = image.width / tile_size;
let tiles_y = image.height / tile_size;
let mut palette_optimiser = palette16::Palette16Optimiser::new();
for y in 0..tiles_y {
for x in 0..tiles_x {
let mut palette = palette16::Palette16::new();
@ -250,14 +268,11 @@ fn optimiser_for_image(image: &Image, tile_size: usize) -> palette16::Palette16O
palette_optimiser.add_palette(palette);
}
}
palette_optimiser
}
fn palete_tile_data(
optimiser: &Palette16OptimisationResults,
tile_size: usize,
image: &Image,
images: &[Image],
) -> (Vec<Vec<u16>>, Vec<u8>, Vec<usize>) {
let palette_data: Vec<Vec<u16>> = optimiser
.optimised_palettes
@ -274,11 +289,13 @@ fn palete_tile_data(
})
.collect();
let mut tile_data = Vec::new();
for image in images {
let tile_size = image.height;
let tiles_x = image.width / tile_size;
let tiles_y = image.height / tile_size;
let mut tile_data = vec![];
for y in 0..tiles_y {
for x in 0..tiles_x {
let palette_index = optimiser.assignments[y * tiles_x + x];
@ -296,6 +313,7 @@ fn palete_tile_data(
}
}
}
}
let tile_data = tile_data
.chunks(2)