67 lines
2.5 KiB
Rust
67 lines
2.5 KiB
Rust
/* Any copyright is dedicated to the Public Domain.
|
|
* http://creativecommons.org/publicdomain/zero/1.0/ */
|
|
|
|
extern crate compute_shader;
|
|
extern crate gl;
|
|
extern crate glfw;
|
|
extern crate memmap;
|
|
extern crate pathfinder;
|
|
|
|
use compute_shader::instance::Instance;
|
|
use glfw::{Context, OpenGlProfileHint, WindowHint, WindowMode};
|
|
use memmap::{Mmap, Protection};
|
|
use pathfinder::batch::{BatchBuilder, GlyphRange};
|
|
use pathfinder::charmap::CodepointRange;
|
|
use pathfinder::glyph_buffer::GlyphBufferBuilder;
|
|
use pathfinder::otf::FontData;
|
|
use pathfinder::rasterizer::Rasterizer;
|
|
use std::env;
|
|
use std::os::raw::c_void;
|
|
|
|
const POINT_SIZE: f32 = 24.0;
|
|
const WIDTH: u32 = 512;
|
|
const HEIGHT: u32 = 384;
|
|
const SHELF_HEIGHT: u32 = 32;
|
|
|
|
fn main() {
|
|
let mut glfw = glfw::init(glfw::LOG_ERRORS).unwrap();
|
|
glfw.window_hint(WindowHint::ContextVersion(3, 3));
|
|
glfw.window_hint(WindowHint::OpenGlForwardCompat(true));
|
|
glfw.window_hint(WindowHint::OpenGlProfile(OpenGlProfileHint::Core));
|
|
let context = glfw.create_window(WIDTH, HEIGHT, "generate-atlas", WindowMode::Windowed);
|
|
|
|
let (mut window, _) = context.expect("Couldn't create a window!");
|
|
window.make_current();
|
|
gl::load_with(|symbol| window.get_proc_address(symbol) as *const c_void);
|
|
|
|
let instance = Instance::new().unwrap();
|
|
let device = instance.create_device().unwrap();
|
|
let queue = device.create_queue().unwrap();
|
|
|
|
let rasterizer = Rasterizer::new(device, queue).unwrap();
|
|
|
|
let mut glyph_buffer_builder = GlyphBufferBuilder::new();
|
|
let mut batch_builder = BatchBuilder::new(WIDTH, SHELF_HEIGHT);
|
|
|
|
let file = Mmap::open_path(env::args().nth(1).unwrap(), Protection::Read).unwrap();
|
|
unsafe {
|
|
let font = FontData::new(file.as_slice());
|
|
let cmap = font.cmap_table().unwrap();
|
|
let glyf = font.glyf_table().unwrap();
|
|
let head = font.head_table().unwrap();
|
|
let loca = font.loca_table(&head).unwrap();
|
|
let codepoint_ranges = [CodepointRange::new('!' as u32, '~' as u32)];
|
|
|
|
let glyph_ranges = cmap.glyph_ranges_for_codepoint_ranges(&codepoint_ranges).unwrap();
|
|
for (glyph_index, glyph_id) in glyph_ranges.iter().flat_map(GlyphRange::iter).enumerate() {
|
|
glyph_buffer_builder.add_glyph(glyph_id as u32, &head, &loca, &glyf).unwrap();
|
|
batch_builder.add_glyph(&glyph_buffer_builder, glyph_index as u32, POINT_SIZE).unwrap()
|
|
}
|
|
}
|
|
|
|
let glyph_buffer = glyph_buffer_builder.finish(&rasterizer.device).unwrap();
|
|
let batch = batch_builder.finish(&rasterizer.device).unwrap();
|
|
// TODO(pcwalton): ...
|
|
}
|
|
|