1348 lines
47 KiB
Rust
1348 lines
47 KiB
Rust
// Copyright 2016 Matthew Collins
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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mod atlas;
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pub mod glsl;
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#[macro_use]
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pub mod shaders;
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pub mod ui;
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pub mod model;
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pub mod clouds;
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use std::collections::HashMap;
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use std::sync::{Arc, RwLock};
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use std::io::Write;
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use crate::resources;
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use crate::gl;
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use image;
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use image::{GenericImage, GenericImageView};
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use byteorder::{WriteBytesExt, NativeEndian};
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use serde_json;
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use cgmath::prelude::*;
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use crate::world;
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use collision;
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use log::{error, trace};
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use std::hash::BuildHasherDefault;
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use crate::types::hash::FNVHash;
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use std::sync::atomic::{AtomicIsize, Ordering};
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use std::thread;
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use std::sync::mpsc;
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const ATLAS_SIZE: usize = 1024;
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// TEMP
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const NUM_SAMPLES: i32 = 2;
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pub struct Camera {
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pub pos: cgmath::Point3<f64>,
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pub yaw: f64,
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pub pitch: f64,
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}
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pub struct Renderer {
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resource_version: usize,
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pub resources: Arc<RwLock<resources::Manager>>,
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textures: Arc<RwLock<TextureManager>>,
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pub ui: ui::UIState,
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pub model: model::Manager,
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pub clouds: clouds::Clouds,
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gl_texture: gl::Texture,
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texture_layers: usize,
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chunk_shader: ChunkShader,
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chunk_shader_alpha: ChunkShaderAlpha,
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trans_shader: TransShader,
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element_buffer: gl::Buffer,
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element_buffer_size: usize,
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element_buffer_type: gl::Type,
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pub camera: Camera,
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perspective_matrix: cgmath::Matrix4<f32>,
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camera_matrix: cgmath::Matrix4<f32>,
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pub frustum: collision::Frustum<f32>,
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pub view_vector: cgmath::Vector3<f32>,
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pub frame_id: u32,
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trans: Option<TransInfo>,
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pub width: u32,
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pub height: u32,
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// Light renderering
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pub light_level: f32,
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pub sky_offset: f32,
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skin_request: mpsc::Sender<String>,
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skin_reply: mpsc::Receiver<(String, Option<image::DynamicImage>)>,
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}
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#[derive(Default)]
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pub struct ChunkBuffer {
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solid: Option<ChunkRenderInfo>,
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trans: Option<ChunkRenderInfo>,
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}
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impl ChunkBuffer {
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pub fn new() -> ChunkBuffer { Default::default() }
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}
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struct ChunkRenderInfo {
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array: gl::VertexArray,
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buffer: gl::Buffer,
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buffer_size: usize,
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count: usize,
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}
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init_shader! {
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Program ChunkShader {
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vert = "chunk_vertex",
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frag = "chunk_frag",
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attribute = {
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required position => "aPosition",
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required texture_info => "aTextureInfo",
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required texture_offset => "aTextureOffset",
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required color => "aColor",
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required lighting => "aLighting",
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},
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uniform = {
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required perspective_matrix => "perspectiveMatrix",
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required camera_matrix => "cameraMatrix",
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required offset => "offset",
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required texture => "textures",
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required light_level => "lightLevel",
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required sky_offset => "skyOffset",
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},
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}
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}
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init_shader! {
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Program ChunkShaderAlpha {
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vert = "chunk_vertex",
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frag = "chunk_frag", #alpha
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attribute = {
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required position => "aPosition",
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required texture_info => "aTextureInfo",
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required texture_offset => "aTextureOffset",
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required color => "aColor",
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required lighting => "aLighting",
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},
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uniform = {
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required perspective_matrix => "perspectiveMatrix",
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required camera_matrix => "cameraMatrix",
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required offset => "offset",
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required texture => "textures",
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required light_level => "lightLevel",
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required sky_offset => "skyOffset",
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},
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}
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}
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impl Renderer {
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pub fn new(res: Arc<RwLock<resources::Manager>>) -> Renderer {
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let version = {
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res.read().unwrap().version()
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};
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let tex = gl::Texture::new();
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tex.bind(gl::TEXTURE_2D_ARRAY);
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tex.image_3d(gl::TEXTURE_2D_ARRAY,
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0,
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ATLAS_SIZE as u32,
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ATLAS_SIZE as u32,
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1,
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gl::RGBA,
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gl::UNSIGNED_BYTE,
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&[0; ATLAS_SIZE * ATLAS_SIZE * 4]);
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tex.set_parameter(gl::TEXTURE_2D_ARRAY, gl::TEXTURE_MAG_FILTER, gl::NEAREST);
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tex.set_parameter(gl::TEXTURE_2D_ARRAY, gl::TEXTURE_MIN_FILTER, gl::NEAREST);
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tex.set_parameter(gl::TEXTURE_2D_ARRAY, gl::TEXTURE_WRAP_S, gl::CLAMP_TO_EDGE);
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tex.set_parameter(gl::TEXTURE_2D_ARRAY, gl::TEXTURE_WRAP_T, gl::CLAMP_TO_EDGE);
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let (textures, skin_req, skin_reply) = TextureManager::new(res.clone());
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let textures = Arc::new(RwLock::new(textures));
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let mut greg = glsl::Registry::new();
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shaders::add_shaders(&mut greg);
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let ui = ui::UIState::new(&greg, textures.clone(), res.clone());
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gl::enable(gl::DEPTH_TEST);
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gl::enable(gl::CULL_FACE_FLAG);
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gl::cull_face(gl::BACK);
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gl::front_face(gl::CLOCK_WISE);
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// Shaders
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let chunk_shader = ChunkShader::new(&greg);
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let chunk_shader_alpha = ChunkShaderAlpha::new(&greg);
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let trans_shader = TransShader::new(&greg);
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// UI
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// Line Drawer
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// Clouds
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gl::blend_func(gl::SRC_ALPHA, gl::ONE_MINUS_SRC_ALPHA);
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gl::depth_func(gl::LESS_OR_EQUAL);
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Renderer {
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resource_version: version,
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model: model::Manager::new(&greg),
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clouds: clouds::Clouds::new(&greg, textures.clone()),
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textures,
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ui,
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resources: res,
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gl_texture: tex,
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texture_layers: 1,
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chunk_shader,
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chunk_shader_alpha,
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trans_shader,
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element_buffer: gl::Buffer::new(),
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element_buffer_size: 0,
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element_buffer_type: gl::UNSIGNED_BYTE,
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width: 0,
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height: 0,
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camera: Camera {
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pos: cgmath::Point3::new(0.0, 0.0, 0.0),
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yaw: 0.0,
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pitch: ::std::f64::consts::PI,
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},
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perspective_matrix: cgmath::Matrix4::identity(),
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camera_matrix: cgmath::Matrix4::identity(),
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frustum: collision::Frustum::from_matrix4(cgmath::Matrix4::identity()).unwrap(),
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view_vector: cgmath::Vector3::zero(),
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frame_id: 1,
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trans: None,
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light_level: 0.8,
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sky_offset: 1.0,
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skin_request: skin_req,
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skin_reply,
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}
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}
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pub fn update_camera(&mut self, width: u32, height: u32) {
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use std::f64::consts::PI as PI64;
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// Not a sane place to put this but it works
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{
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let rm = self.resources.read().unwrap();
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if rm.version() != self.resource_version {
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self.resource_version = rm.version();
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trace!("Updating textures to {}", self.resource_version);
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self.textures.write().unwrap().update_textures(self.resource_version);
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self.model.rebuild_models(self.resource_version, &self.textures);
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}
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}
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if self.height != height || self.width != width {
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self.width = width;
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self.height = height;
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gl::viewport(0, 0, width as i32, height as i32);
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self.perspective_matrix = cgmath::Matrix4::from(
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cgmath::PerspectiveFov {
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fovy: cgmath::Rad::from(cgmath::Deg(90f32)),
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aspect: (width as f32 / height as f32),
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near: 0.1f32,
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far: 500.0f32,
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}
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);
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self.init_trans(width, height);
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}
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self.view_vector = cgmath::Vector3::new(
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((self.camera.yaw - PI64/2.0).cos() * -self.camera.pitch.cos()) as f32,
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(-self.camera.pitch.sin()) as f32,
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(-(self.camera.yaw - PI64/2.0).sin() * -self.camera.pitch.cos()) as f32
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);
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let camera = cgmath::Point3::new(-self.camera.pos.x as f32, -self.camera.pos.y as f32, self.camera.pos.z as f32);
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let camera_matrix = cgmath::Matrix4::look_at(
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camera,
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camera + cgmath::Point3::new(-self.view_vector.x, -self.view_vector.y, self.view_vector.z).to_vec(),
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cgmath::Vector3::new(0.0, -1.0, 0.0)
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);
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self.camera_matrix = camera_matrix * cgmath::Matrix4::from_nonuniform_scale(-1.0, 1.0, 1.0);
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self.frustum = collision::Frustum::from_matrix4(self.perspective_matrix * self.camera_matrix).unwrap();
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}
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pub fn tick(&mut self, world: &mut world::World, delta: f64, width: u32, height: u32, physical_width: u32, physical_height: u32) {
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self.update_textures(delta);
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let trans = self.trans.as_mut().unwrap();
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trans.main.bind();
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gl::active_texture(0);
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self.gl_texture.bind(gl::TEXTURE_2D_ARRAY);
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gl::enable(gl::MULTISAMPLE);
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let time_offset = self.sky_offset * 0.9;
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gl::clear_color(
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(122.0 / 255.0) * time_offset,
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(165.0 / 255.0) * time_offset,
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(247.0 / 255.0) * time_offset,
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1.0
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);
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gl::clear(gl::ClearFlags::Color | gl::ClearFlags::Depth);
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// Chunk rendering
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self.chunk_shader.program.use_program();
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self.chunk_shader.perspective_matrix.set_matrix4(&self.perspective_matrix);
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self.chunk_shader.camera_matrix.set_matrix4(&self.camera_matrix);
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self.chunk_shader.texture.set_int(0);
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self.chunk_shader.light_level.set_float(self.light_level);
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self.chunk_shader.sky_offset.set_float(self.sky_offset);
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for (pos, info) in world.get_render_list() {
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if let Some(solid) = info.solid.as_ref() {
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if solid.count > 0 {
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self.chunk_shader.offset.set_int3(pos.0, pos.1 * 4096, pos.2);
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solid.array.bind();
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gl::draw_elements(gl::TRIANGLES, solid.count as i32, self.element_buffer_type, 0);
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}
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}
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}
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// Line rendering
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// Model rendering
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self.model.draw(&self.frustum, &self.perspective_matrix, &self.camera_matrix, self.light_level, self.sky_offset);
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if world.copy_cloud_heightmap(&mut self.clouds.heightmap_data) {
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self.clouds.dirty = true;
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}
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self.clouds.draw(&self.camera.pos, &self.perspective_matrix, &self.camera_matrix, self.light_level, self.sky_offset, delta);
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// Trans chunk rendering
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self.chunk_shader_alpha.program.use_program();
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self.chunk_shader_alpha.perspective_matrix.set_matrix4(&self.perspective_matrix);
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self.chunk_shader_alpha.camera_matrix.set_matrix4(&self.camera_matrix);
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self.chunk_shader_alpha.texture.set_int(0);
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self.chunk_shader_alpha.light_level.set_float(self.light_level);
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self.chunk_shader_alpha.sky_offset.set_float(self.sky_offset);
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// Copy the depth buffer
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trans.main.bind_read();
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trans.trans.bind_draw();
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gl::blit_framebuffer(
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0, 0, physical_width as i32, physical_height as i32,
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0, 0, physical_width as i32, physical_height as i32,
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gl::ClearFlags::Depth, gl::NEAREST
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);
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gl::enable(gl::BLEND);
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gl::depth_mask(false);
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trans.trans.bind();
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gl::clear_color(0.0, 0.0, 0.0, 1.0);
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gl::clear(gl::ClearFlags::Color);
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gl::clear_buffer(gl::COLOR, 0, &[0.0, 0.0, 0.0, 1.0]);
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gl::clear_buffer(gl::COLOR, 1, &[0.0, 0.0, 0.0, 0.0]);
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gl::blend_func_separate(gl::ONE_FACTOR, gl::ONE_FACTOR, gl::ZERO_FACTOR, gl::ONE_MINUS_SRC_ALPHA);
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for (pos, info) in world.get_render_list().into_iter().rev() {
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if let Some(trans) = info.trans.as_ref() {
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if trans.count > 0 {
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self.chunk_shader_alpha.offset.set_int3(pos.0, pos.1 * 4096, pos.2);
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trans.array.bind();
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gl::draw_elements(gl::TRIANGLES, trans.count as i32, self.element_buffer_type, 0);
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}
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}
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}
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gl::check_framebuffer_status();
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gl::unbind_framebuffer();
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gl::disable(gl::DEPTH_TEST);
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gl::clear(gl::ClearFlags::Color);
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gl::disable(gl::BLEND);
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trans.draw(&self.trans_shader);
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gl::enable(gl::DEPTH_TEST);
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gl::depth_mask(true);
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gl::blend_func(gl::SRC_ALPHA, gl::ONE_MINUS_SRC_ALPHA);
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gl::disable(gl::MULTISAMPLE);
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self.ui.tick(width, height);
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gl::check_gl_error();
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self.frame_id = self.frame_id.wrapping_add(1);
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}
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fn ensure_element_buffer(&mut self, size: usize) {
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if self.element_buffer_size < size {
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let (data, ty) = self::generate_element_buffer(size);
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self.element_buffer_type = ty;
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self.element_buffer.bind(gl::ELEMENT_ARRAY_BUFFER);
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self.element_buffer.set_data(gl::ELEMENT_ARRAY_BUFFER, &data, gl::DYNAMIC_DRAW);
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self.element_buffer_size = size;
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}
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}
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pub fn update_chunk_solid(&mut self, buffer: &mut ChunkBuffer, data: &[u8], count: usize) {
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self.ensure_element_buffer(count);
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if count == 0 {
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if buffer.solid.is_some() {
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buffer.solid = None;
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}
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return;
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}
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let new = buffer.solid.is_none();
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if buffer.solid.is_none() {
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buffer.solid = Some(ChunkRenderInfo {
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array: gl::VertexArray::new(),
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buffer: gl::Buffer::new(),
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buffer_size: 0,
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count: 0,
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});
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}
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let info = buffer.solid.as_mut().unwrap();
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info.array.bind();
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self.chunk_shader.position.enable();
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self.chunk_shader.texture_info.enable();
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self.chunk_shader.texture_offset.enable();
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self.chunk_shader.color.enable();
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self.chunk_shader.lighting.enable();
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self.element_buffer.bind(gl::ELEMENT_ARRAY_BUFFER);
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info.buffer.bind(gl::ARRAY_BUFFER);
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if new || info.buffer_size < data.len() {
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info.buffer_size = data.len();
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info.buffer.set_data(gl::ARRAY_BUFFER, data, gl::DYNAMIC_DRAW);
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} else {
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info.buffer.re_set_data(gl::ARRAY_BUFFER, data);
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}
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self.chunk_shader.position.vertex_pointer(3, gl::FLOAT, false, 40, 0);
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self.chunk_shader.texture_info.vertex_pointer(4, gl::UNSIGNED_SHORT, false, 40, 12);
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self.chunk_shader.texture_offset.vertex_pointer(3, gl::SHORT, false, 40, 20);
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self.chunk_shader.color.vertex_pointer(3, gl::UNSIGNED_BYTE, true, 40, 28);
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self.chunk_shader.lighting.vertex_pointer(2, gl::UNSIGNED_SHORT, false, 40, 32);
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info.count = count;
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}
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pub fn update_chunk_trans(&mut self, buffer: &mut ChunkBuffer, data: &[u8], count: usize) {
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self.ensure_element_buffer(count);
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if count == 0 {
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if buffer.trans.is_some() {
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buffer.trans = None;
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}
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return;
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}
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let new = buffer.trans.is_none();
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if buffer.trans.is_none() {
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buffer.trans = Some(ChunkRenderInfo {
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array: gl::VertexArray::new(),
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buffer: gl::Buffer::new(),
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buffer_size: 0,
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count: 0,
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});
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}
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let info = buffer.trans.as_mut().unwrap();
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info.array.bind();
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self.chunk_shader_alpha.position.enable();
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self.chunk_shader_alpha.texture_info.enable();
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self.chunk_shader_alpha.texture_offset.enable();
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self.chunk_shader_alpha.color.enable();
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self.chunk_shader_alpha.lighting.enable();
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self.element_buffer.bind(gl::ELEMENT_ARRAY_BUFFER);
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info.buffer.bind(gl::ARRAY_BUFFER);
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if new || info.buffer_size < data.len() {
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info.buffer_size = data.len();
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info.buffer.set_data(gl::ARRAY_BUFFER, data, gl::DYNAMIC_DRAW);
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} else {
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info.buffer.re_set_data(gl::ARRAY_BUFFER, data);
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}
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self.chunk_shader_alpha.position.vertex_pointer(3, gl::FLOAT, false, 40, 0);
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self.chunk_shader_alpha.texture_info.vertex_pointer(4, gl::UNSIGNED_SHORT, false, 40, 12);
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self.chunk_shader_alpha.texture_offset.vertex_pointer(3, gl::SHORT, false, 40, 20);
|
|
self.chunk_shader_alpha.color.vertex_pointer(3, gl::UNSIGNED_BYTE, true, 40, 28);
|
|
self.chunk_shader_alpha.lighting.vertex_pointer(2, gl::UNSIGNED_SHORT, false, 40, 32);
|
|
|
|
info.count = count;
|
|
}
|
|
|
|
fn do_pending_textures(&mut self) {
|
|
let len = {
|
|
let tex = self.textures.read().unwrap();
|
|
// Rebuild the texture if it needs resizing
|
|
if self.texture_layers != tex.atlases.len() {
|
|
let len = ATLAS_SIZE * ATLAS_SIZE * 4 * tex.atlases.len();
|
|
let mut data = Vec::with_capacity(len);
|
|
unsafe {
|
|
data.set_len(len);
|
|
}
|
|
self.gl_texture.get_pixels(gl::TEXTURE_2D_ARRAY,
|
|
0,
|
|
gl::RGBA,
|
|
gl::UNSIGNED_BYTE,
|
|
&mut data[..]);
|
|
self.gl_texture.image_3d(gl::TEXTURE_2D_ARRAY,
|
|
0,
|
|
ATLAS_SIZE as u32,
|
|
ATLAS_SIZE as u32,
|
|
tex.atlases.len() as u32,
|
|
gl::RGBA,
|
|
gl::UNSIGNED_BYTE,
|
|
&data[..]);
|
|
self.texture_layers = tex.atlases.len();
|
|
}
|
|
tex.pending_uploads.len()
|
|
};
|
|
if len > 0 {
|
|
// Upload pending changes
|
|
let mut tex = self.textures.write().unwrap();
|
|
for upload in &tex.pending_uploads {
|
|
let atlas = upload.0;
|
|
let rect = upload.1;
|
|
let img = &upload.2;
|
|
self.gl_texture.sub_image_3d(gl::TEXTURE_2D_ARRAY,
|
|
0,
|
|
rect.x as u32,
|
|
rect.y as u32,
|
|
atlas as u32,
|
|
rect.width as u32,
|
|
rect.height as u32,
|
|
1,
|
|
gl::RGBA,
|
|
gl::UNSIGNED_BYTE,
|
|
&img[..]);
|
|
}
|
|
tex.pending_uploads.clear();
|
|
}
|
|
}
|
|
|
|
fn update_textures(&mut self, delta: f64) {
|
|
{
|
|
let mut tex = self.textures.write().unwrap();
|
|
while let Ok((hash, img)) = self.skin_reply.try_recv() {
|
|
if let Some(img) = img {
|
|
tex.update_skin(hash, img);
|
|
}
|
|
}
|
|
let mut old_skins = vec![];
|
|
for (skin, refcount) in &tex.skins {
|
|
if refcount.load(Ordering::Relaxed) == 0 {
|
|
old_skins.push(skin.clone());
|
|
}
|
|
}
|
|
for skin in old_skins {
|
|
tex.skins.remove(&skin);
|
|
tex.remove_dynamic(&format!("skin-{}", skin));
|
|
}
|
|
}
|
|
self.gl_texture.bind(gl::TEXTURE_2D_ARRAY);
|
|
self.do_pending_textures();
|
|
|
|
for ani in &mut self.textures.write().unwrap().animated_textures {
|
|
if ani.remaining_time <= 0.0 {
|
|
ani.current_frame = (ani.current_frame + 1) % ani.frames.len();
|
|
ani.remaining_time += ani.frames[ani.current_frame].time as f64;
|
|
let offset = ani.texture.width * ani.texture.width *
|
|
ani.frames[ani.current_frame].index * 4;
|
|
let offset2 = offset + ani.texture.width * ani.texture.width * 4;
|
|
self.gl_texture.sub_image_3d(gl::TEXTURE_2D_ARRAY,
|
|
0,
|
|
ani.texture.get_x() as u32,
|
|
ani.texture.get_y() as u32,
|
|
ani.texture.atlas as u32,
|
|
ani.texture.get_width() as u32,
|
|
ani.texture.get_height() as u32,
|
|
1,
|
|
gl::RGBA,
|
|
gl::UNSIGNED_BYTE,
|
|
&ani.data[offset..offset2]);
|
|
} else {
|
|
ani.remaining_time -= delta / 3.0;
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
fn init_trans(&mut self, width: u32, height: u32) {
|
|
self.trans = None;
|
|
self.trans = Some(TransInfo::new(width, height, &self.chunk_shader_alpha, &self.trans_shader));
|
|
}
|
|
|
|
pub fn get_textures(&self) -> Arc<RwLock<TextureManager>> {
|
|
self.textures.clone()
|
|
}
|
|
|
|
pub fn get_textures_ref(&self) -> &RwLock<TextureManager> {
|
|
&self.textures
|
|
}
|
|
|
|
pub fn check_texture(&self, tex: Texture) -> Texture {
|
|
if tex.version == self.resource_version {
|
|
tex
|
|
} else {
|
|
let mut new = Renderer::get_texture(&self.textures, &tex.name);
|
|
new.rel_x = tex.rel_x;
|
|
new.rel_y = tex.rel_y;
|
|
new.rel_width = tex.rel_width;
|
|
new.rel_height = tex.rel_height;
|
|
new.is_rel = tex.is_rel;
|
|
new
|
|
}
|
|
}
|
|
|
|
pub fn get_texture(textures: &RwLock<TextureManager>, name: &str) -> Texture {
|
|
let tex = {
|
|
textures.read().unwrap().get_texture(name)
|
|
};
|
|
match tex {
|
|
Some(val) => val,
|
|
None => {
|
|
let mut t = textures.write().unwrap();
|
|
// Make sure it hasn't already been loaded since we switched
|
|
// locks.
|
|
if let Some(val) = t.get_texture(name) {
|
|
val
|
|
} else {
|
|
t.load_texture(name);
|
|
t.get_texture(name).unwrap()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
pub fn get_skin(&self, textures: &RwLock<TextureManager>, url: &str) -> Texture {
|
|
let tex = {
|
|
textures.read().unwrap().get_skin(url)
|
|
};
|
|
match tex {
|
|
Some(val) => val,
|
|
None => {
|
|
let mut t = textures.write().unwrap();
|
|
// Make sure it hasn't already been loaded since we switched
|
|
// locks.
|
|
if let Some(val) = t.get_skin(url) {
|
|
val
|
|
} else {
|
|
t.load_skin(self, url);
|
|
t.get_skin(url).unwrap()
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
struct TransInfo {
|
|
main: gl::Framebuffer,
|
|
fb_color: gl::Texture,
|
|
_fb_depth: gl::Texture,
|
|
trans: gl::Framebuffer,
|
|
accum: gl::Texture,
|
|
revealage: gl::Texture,
|
|
_depth: gl::Texture,
|
|
|
|
array: gl::VertexArray,
|
|
_buffer: gl::Buffer,
|
|
}
|
|
|
|
init_shader! {
|
|
Program TransShader {
|
|
vert = "trans_vertex",
|
|
frag = "trans_frag",
|
|
attribute = {
|
|
required position => "aPosition",
|
|
},
|
|
uniform = {
|
|
required accum => "taccum",
|
|
required revealage => "trevealage",
|
|
required color => "tcolor",
|
|
required samples => "samples",
|
|
},
|
|
}
|
|
}
|
|
|
|
impl TransInfo {
|
|
pub fn new(width: u32, height: u32, chunk_shader: &ChunkShaderAlpha, shader: &TransShader) -> TransInfo {
|
|
let trans = gl::Framebuffer::new();
|
|
trans.bind();
|
|
|
|
let accum = gl::Texture::new();
|
|
accum.bind(gl::TEXTURE_2D);
|
|
accum.image_2d_ex(gl::TEXTURE_2D, 0, width, height, gl::RGBA16F, gl::RGBA, gl::FLOAT, None);
|
|
accum.set_parameter(gl::TEXTURE_2D, gl::TEXTURE_MIN_FILTER, gl::LINEAR);
|
|
accum.set_parameter(gl::TEXTURE_2D, gl::TEXTURE_MAX_LEVEL, gl::LINEAR);
|
|
trans.texture_2d(gl::COLOR_ATTACHMENT_0, gl::TEXTURE_2D, &accum, 0);
|
|
|
|
let revealage = gl::Texture::new();
|
|
revealage.bind(gl::TEXTURE_2D);
|
|
revealage.image_2d_ex(gl::TEXTURE_2D, 0, width, height, gl::R16F, gl::RED, gl::FLOAT, None);
|
|
revealage.set_parameter(gl::TEXTURE_2D, gl::TEXTURE_MIN_FILTER, gl::LINEAR);
|
|
revealage.set_parameter(gl::TEXTURE_2D, gl::TEXTURE_MAX_LEVEL, gl::LINEAR);
|
|
trans.texture_2d(gl::COLOR_ATTACHMENT_1, gl::TEXTURE_2D, &revealage, 0);
|
|
|
|
let trans_depth = gl::Texture::new();
|
|
trans_depth.bind(gl::TEXTURE_2D);
|
|
trans_depth.image_2d_ex(gl::TEXTURE_2D, 0, width, height, gl::DEPTH_COMPONENT24, gl::DEPTH_COMPONENT, gl::UNSIGNED_BYTE, None);
|
|
trans_depth.set_parameter(gl::TEXTURE_2D, gl::TEXTURE_MIN_FILTER, gl::LINEAR);
|
|
trans_depth.set_parameter(gl::TEXTURE_2D, gl::TEXTURE_MAX_LEVEL, gl::LINEAR);
|
|
trans.texture_2d(gl::DEPTH_ATTACHMENT, gl::TEXTURE_2D, &trans_depth, 0);
|
|
|
|
chunk_shader.program.use_program();
|
|
gl::bind_frag_data_location(&chunk_shader.program, 0, "accum");
|
|
gl::bind_frag_data_location(&chunk_shader.program, 1, "revealage");
|
|
gl::check_framebuffer_status();
|
|
gl::draw_buffers(&[gl::COLOR_ATTACHMENT_0, gl::COLOR_ATTACHMENT_1]);
|
|
|
|
let main = gl::Framebuffer::new();
|
|
main.bind();
|
|
|
|
let fb_color = gl::Texture::new();
|
|
fb_color.bind(gl::TEXTURE_2D_MULTISAMPLE);
|
|
fb_color.image_2d_sample(gl::TEXTURE_2D_MULTISAMPLE, NUM_SAMPLES, width, height, gl::RGBA8, false);
|
|
main.texture_2d(gl::COLOR_ATTACHMENT_0, gl::TEXTURE_2D_MULTISAMPLE, &fb_color, 0);
|
|
|
|
let fb_depth = gl::Texture::new();
|
|
fb_depth.bind(gl::TEXTURE_2D_MULTISAMPLE);
|
|
fb_depth.image_2d_sample(gl::TEXTURE_2D_MULTISAMPLE, NUM_SAMPLES, width, height, gl::DEPTH_COMPONENT24, false);
|
|
main.texture_2d(gl::DEPTH_ATTACHMENT, gl::TEXTURE_2D_MULTISAMPLE, &fb_depth, 0);
|
|
gl::check_framebuffer_status();
|
|
|
|
gl::unbind_framebuffer();
|
|
|
|
shader.program.use_program();
|
|
let array = gl::VertexArray::new();
|
|
array.bind();
|
|
let buffer = gl::Buffer::new();
|
|
buffer.bind(gl::ARRAY_BUFFER);
|
|
|
|
let mut data = vec![];
|
|
for f in [-1.0, 1.0, 1.0, -1.0, -1.0, -1.0, 1.0, 1.0, 1.0, -1.0, -1.0, 1.0].into_iter() {
|
|
data.write_f32::<NativeEndian>(*f).unwrap();
|
|
}
|
|
buffer.set_data(gl::ARRAY_BUFFER, &data, gl::STATIC_DRAW);
|
|
|
|
shader.position.enable();
|
|
shader.position.vertex_pointer(2, gl::FLOAT, false, 8, 0);
|
|
|
|
TransInfo {
|
|
main,
|
|
fb_color,
|
|
_fb_depth: fb_depth,
|
|
trans,
|
|
accum,
|
|
revealage,
|
|
_depth: trans_depth,
|
|
|
|
array,
|
|
_buffer: buffer,
|
|
}
|
|
}
|
|
|
|
fn draw(&mut self, shader: &TransShader) {
|
|
gl::active_texture(0);
|
|
self.accum.bind(gl::TEXTURE_2D);
|
|
gl::active_texture(1);
|
|
self.revealage.bind(gl::TEXTURE_2D);
|
|
gl::active_texture(2);
|
|
self.fb_color.bind(gl::TEXTURE_2D_MULTISAMPLE);
|
|
|
|
shader.program.use_program();
|
|
shader.accum.set_int(0);
|
|
shader.revealage.set_int(1);
|
|
shader.color.set_int(2);
|
|
shader.samples.set_int(NUM_SAMPLES);
|
|
self.array.bind();
|
|
gl::draw_arrays(gl::TRIANGLES, 0, 6);
|
|
}
|
|
}
|
|
|
|
pub struct TextureManager {
|
|
textures: HashMap<String, Texture, BuildHasherDefault<FNVHash>>,
|
|
version: usize,
|
|
resources: Arc<RwLock<resources::Manager>>,
|
|
atlases: Vec<atlas::Atlas>,
|
|
|
|
animated_textures: Vec<AnimatedTexture>,
|
|
pending_uploads: Vec<(i32, atlas::Rect, Vec<u8>)>,
|
|
|
|
dynamic_textures: HashMap<String, (Texture, image::DynamicImage), BuildHasherDefault<FNVHash>>,
|
|
free_dynamics: Vec<Texture>,
|
|
|
|
skins: HashMap<String, AtomicIsize, BuildHasherDefault<FNVHash>>,
|
|
|
|
_skin_thread: thread::JoinHandle<()>,
|
|
}
|
|
|
|
impl TextureManager {
|
|
fn new(res: Arc<RwLock<resources::Manager>>) -> (TextureManager, mpsc::Sender<String>, mpsc::Receiver<(String, Option<image::DynamicImage>)>) {
|
|
let (tx, rx) = mpsc::channel();
|
|
let (stx, srx) = mpsc::channel();
|
|
let skin_thread = thread::spawn(|| Self::process_skins(srx, tx));
|
|
let mut tm = TextureManager {
|
|
textures: HashMap::with_hasher(BuildHasherDefault::default()),
|
|
version: {
|
|
let ver = res.read().unwrap().version();
|
|
ver
|
|
},
|
|
resources: res,
|
|
atlases: Vec::new(),
|
|
animated_textures: Vec::new(),
|
|
pending_uploads: Vec::new(),
|
|
|
|
dynamic_textures: HashMap::with_hasher(BuildHasherDefault::default()),
|
|
free_dynamics: Vec::new(),
|
|
skins: HashMap::with_hasher(BuildHasherDefault::default()),
|
|
|
|
_skin_thread: skin_thread,
|
|
};
|
|
tm.add_defaults();
|
|
(tm, stx, rx)
|
|
}
|
|
|
|
fn add_defaults(&mut self) {
|
|
self.put_texture("steven",
|
|
"missing_texture",
|
|
2,
|
|
2,
|
|
vec![
|
|
0, 0, 0, 255,
|
|
255, 0, 255, 255,
|
|
255, 0, 255, 255,
|
|
0, 0, 0, 255,
|
|
]);
|
|
self.put_texture("steven",
|
|
"solid",
|
|
1,
|
|
1,
|
|
vec![
|
|
255, 255, 255, 255,
|
|
]);
|
|
}
|
|
|
|
#[cfg(target_arch = "wasm32")]
|
|
fn process_skins(recv: mpsc::Receiver<String>, reply: mpsc::Sender<(String, Option<image::DynamicImage>)>) {
|
|
}
|
|
|
|
#[cfg(not(target_arch = "wasm32"))]
|
|
fn process_skins(recv: mpsc::Receiver<String>, reply: mpsc::Sender<(String, Option<image::DynamicImage>)>) {
|
|
use reqwest;
|
|
let client = reqwest::Client::new();
|
|
loop {
|
|
let hash = match recv.recv() {
|
|
Ok(val) => val,
|
|
Err(_) => return, // Most likely shutting down
|
|
};
|
|
match Self::obtain_skin(&client, &hash) {
|
|
Ok(img) => {
|
|
let _ = reply.send((hash, Some(img)));
|
|
},
|
|
Err(err) => {
|
|
error!("Failed to get skin {:?}: {}", hash, err);
|
|
let _ = reply.send((hash, None));
|
|
},
|
|
}
|
|
}
|
|
}
|
|
|
|
#[cfg(not(target_arch = "wasm32"))]
|
|
fn obtain_skin(client: &::reqwest::Client, hash: &str) -> Result<image::DynamicImage, ::std::io::Error> {
|
|
use std::io::Read;
|
|
use std::fs;
|
|
use std::path::Path;
|
|
use std::io::{Error, ErrorKind};
|
|
let path = format!("skin-cache/{}/{}.png", &hash[..2], hash);
|
|
let cache_path = Path::new(&path);
|
|
fs::create_dir_all(cache_path.parent().unwrap())?;
|
|
let mut buf = vec![];
|
|
if fs::metadata(cache_path).is_ok() {
|
|
// We have a cached image
|
|
let mut file = fs::File::open(cache_path)?;
|
|
file.read_to_end(&mut buf)?;
|
|
} else {
|
|
// Need to download it
|
|
let url = &format!("http://textures.minecraft.net/texture/{}", hash);
|
|
let mut res = match client.get(url).send() {
|
|
Ok(val) => val,
|
|
Err(err) => {
|
|
return Err(Error::new(ErrorKind::ConnectionAborted, err));
|
|
}
|
|
};
|
|
let mut buf = vec![];
|
|
match res.read_to_end(&mut buf) {
|
|
Ok(_) => {},
|
|
Err(err) => {
|
|
// TODO: different error for failure to read?
|
|
return Err(Error::new(ErrorKind::InvalidData, err));
|
|
}
|
|
}
|
|
|
|
// Save to cache
|
|
let mut file = fs::File::create(cache_path)?;
|
|
file.write_all(&buf)?;
|
|
}
|
|
let mut img = match image::load_from_memory(&buf) {
|
|
Ok(val) => val,
|
|
Err(err) => {
|
|
return Err(Error::new(ErrorKind::InvalidData, err));
|
|
}
|
|
};
|
|
let (_, height) = img.dimensions();
|
|
if height == 32 {
|
|
// Needs changing to the new format
|
|
let mut new = image::DynamicImage::new_rgba8(64, 64);
|
|
new.copy_from(&img, 0, 0);
|
|
for xx in 0 .. 4 {
|
|
for yy in 0 .. 16 {
|
|
for section in 0 .. 4 {
|
|
let os = match section {
|
|
0 => 2,
|
|
1 => 1,
|
|
2 => 0,
|
|
3 => 3,
|
|
_ => unreachable!(),
|
|
};
|
|
new.put_pixel(16 + (3 - xx) + section * 4, 48 + yy, img.get_pixel(xx + os * 4, 16 + yy));
|
|
new.put_pixel(32 + (3 - xx) + section * 4, 48 + yy, img.get_pixel(xx + 40 + os * 4, 16 + yy));
|
|
}
|
|
}
|
|
}
|
|
img = new;
|
|
}
|
|
// Block transparent pixels in blacklisted areas
|
|
let blacklist = [
|
|
// X, Y, W, H
|
|
(0, 0, 32, 16),
|
|
(16, 16, 24, 16),
|
|
(0, 16, 16, 16),
|
|
(16, 48, 16, 16),
|
|
(32, 48, 16, 16),
|
|
(40, 16, 16, 16),
|
|
];
|
|
for bl in blacklist.into_iter() {
|
|
for x in bl.0 .. (bl.0 + bl.2) {
|
|
for y in bl.1 .. (bl.1 + bl.3) {
|
|
let mut col = img.get_pixel(x, y);
|
|
col.data[3] = 255;
|
|
img.put_pixel(x, y, col);
|
|
}
|
|
}
|
|
}
|
|
Ok(img)
|
|
}
|
|
|
|
fn update_textures(&mut self, version: usize) {
|
|
self.pending_uploads.clear();
|
|
self.atlases.clear();
|
|
self.animated_textures.clear();
|
|
self.version = version;
|
|
let map = self.textures.clone();
|
|
self.textures.clear();
|
|
|
|
self.free_dynamics.clear();
|
|
|
|
self.add_defaults();
|
|
|
|
for name in map.keys() {
|
|
if name.starts_with("steven-dynamic:") {
|
|
let n = &name["steven-dynamic:".len()..];
|
|
let (width, height, data) = {
|
|
let dynamic_texture = match self.dynamic_textures.get(n) {
|
|
Some(val) => val,
|
|
None => continue,
|
|
};
|
|
let img = &dynamic_texture.1;
|
|
let (width, height) = img.dimensions();
|
|
(width, height, img.to_rgba().into_vec())
|
|
};
|
|
let new_tex = self.put_texture("steven-dynamic", n, width as u32, height as u32, data);
|
|
self.dynamic_textures.get_mut(n).unwrap().0 = new_tex;
|
|
} else if !self.textures.contains_key(name) {
|
|
self.load_texture(name);
|
|
}
|
|
}
|
|
}
|
|
|
|
fn get_skin(&self, url: &str) -> Option<Texture> {
|
|
let hash = &url["http://textures.minecraft.net/texture/".len()..];
|
|
if let Some(skin) = self.skins.get(hash) {
|
|
skin.fetch_add(1, Ordering::Relaxed);
|
|
}
|
|
self.get_texture(&format!("steven-dynamic:skin-{}", hash))
|
|
}
|
|
|
|
pub fn release_skin(&self, url: &str) {
|
|
let hash = &url["http://textures.minecraft.net/texture/".len()..];
|
|
if let Some(skin) = self.skins.get(hash) {
|
|
skin.fetch_sub(1, Ordering::Relaxed);
|
|
}
|
|
}
|
|
|
|
fn load_skin(&mut self, renderer: &Renderer, url: &str) {
|
|
let hash = &url["http://textures.minecraft.net/texture/".len()..];
|
|
let res = self.resources.clone();
|
|
// TODO: This shouldn't be hardcoded to steve but instead
|
|
// have a way to select alex as a default.
|
|
let img = if let Some(mut val) = res.read().unwrap().open("minecraft", "textures/entity/steve.png") {
|
|
let mut data = Vec::new();
|
|
val.read_to_end(&mut data).unwrap();
|
|
image::load_from_memory(&data).unwrap()
|
|
} else {
|
|
image::DynamicImage::new_rgba8(64, 64)
|
|
};
|
|
self.put_dynamic(&format!("skin-{}", hash), img);
|
|
self.skins.insert(hash.to_owned(), AtomicIsize::new(0));
|
|
renderer.skin_request.send(hash.to_owned()).unwrap();
|
|
}
|
|
|
|
fn update_skin(&mut self, hash: String, img: image::DynamicImage) {
|
|
if !self.skins.contains_key(&hash) { return; }
|
|
let name = format!("steven-dynamic:skin-{}", hash);
|
|
let tex = self.get_texture(&name).unwrap();
|
|
let rect = atlas::Rect {
|
|
x: tex.x,
|
|
y: tex.y,
|
|
width: tex.width,
|
|
height: tex.height,
|
|
};
|
|
|
|
self.pending_uploads.push((tex.atlas, rect, img.to_rgba().into_vec()));
|
|
self.dynamic_textures.get_mut(&format!("skin-{}", hash)).unwrap().1 = img;
|
|
}
|
|
|
|
fn get_texture(&self, name: &str) -> Option<Texture> {
|
|
if let Some(_) = name.find(':') {
|
|
self.textures.get(name).cloned()
|
|
} else {
|
|
self.textures.get(&format!("minecraft:{}", name)).cloned()
|
|
}
|
|
}
|
|
|
|
fn load_texture(&mut self, name: &str) {
|
|
let (plugin, name) = if let Some(pos) = name.find(':') {
|
|
(&name[..pos], &name[pos + 1..])
|
|
} else {
|
|
("minecraft", name)
|
|
};
|
|
let path = format!("textures/{}.png", name);
|
|
let res = self.resources.clone();
|
|
if let Some(mut val) = res.read().unwrap().open(plugin, &path) {
|
|
let mut data = Vec::new();
|
|
val.read_to_end(&mut data).unwrap();
|
|
if let Ok(img) = image::load_from_memory(&data) {
|
|
let (width, height) = img.dimensions();
|
|
// Might be animated
|
|
if (name.starts_with("blocks/") || name.starts_with("items/")) && width != height {
|
|
let id = img.to_rgba().into_vec();
|
|
let frame = id[..(width * width * 4) as usize].to_owned();
|
|
if let Some(mut ani) = self.load_animation(plugin, name, &img, id) {
|
|
ani.texture = self.put_texture(plugin, name, width, width, frame);
|
|
self.animated_textures.push(ani);
|
|
return;
|
|
}
|
|
}
|
|
self.put_texture(plugin, name, width, height, img.to_rgba().into_vec());
|
|
return;
|
|
}
|
|
}
|
|
self.insert_texture_dummy(plugin, name);
|
|
}
|
|
|
|
fn load_animation(&mut self,
|
|
plugin: &str,
|
|
name: &str,
|
|
img: &image::DynamicImage,
|
|
data: Vec<u8>)
|
|
-> Option<AnimatedTexture> {
|
|
let path = format!("textures/{}.png.mcmeta", name);
|
|
let res = self.resources.clone();
|
|
if let Some(val) = res.read().unwrap().open(plugin, &path) {
|
|
let meta: serde_json::Value = serde_json::from_reader(val).unwrap();
|
|
let animation = meta.get("animation").unwrap();
|
|
let frame_time = animation.get("frametime").and_then(|v| v.as_i64()).unwrap_or(1);
|
|
let interpolate = animation.get("interpolate")
|
|
.and_then(|v| v.as_bool())
|
|
.unwrap_or(false);
|
|
let frames = if let Some(frames) = animation.get("frames")
|
|
.and_then(|v| v.as_array()) {
|
|
let mut out = Vec::with_capacity(frames.len());
|
|
for frame in frames {
|
|
if let Some(index) = frame.as_i64() {
|
|
out.push(AnimationFrame {
|
|
index: index as usize,
|
|
time: frame_time,
|
|
})
|
|
} else {
|
|
out.push(AnimationFrame{
|
|
index: frame.get("index").unwrap().as_i64().unwrap() as usize,
|
|
time: frame_time * frame.get("frameTime").unwrap().as_i64().unwrap(),
|
|
})
|
|
}
|
|
}
|
|
out
|
|
} else {
|
|
let (width, height) = img.dimensions();
|
|
let count = height / width;
|
|
let mut frames = Vec::with_capacity(count as usize);
|
|
for i in 0..count {
|
|
frames.push(AnimationFrame {
|
|
index: i as usize,
|
|
time: frame_time,
|
|
})
|
|
}
|
|
frames
|
|
};
|
|
|
|
return Some(AnimatedTexture {
|
|
frames,
|
|
data,
|
|
interpolate,
|
|
current_frame: 0,
|
|
remaining_time: 0.0,
|
|
texture: self.get_texture("steven:missing_texture").unwrap(),
|
|
});
|
|
}
|
|
None
|
|
}
|
|
|
|
fn put_texture(&mut self,
|
|
plugin: &str,
|
|
name: &str,
|
|
width: u32,
|
|
height: u32,
|
|
data: Vec<u8>)
|
|
-> Texture {
|
|
let (atlas, rect) = self.find_free(width as usize, height as usize);
|
|
self.pending_uploads.push((atlas, rect, data));
|
|
|
|
let mut full_name = String::new();
|
|
full_name.push_str(plugin);
|
|
full_name.push_str(":");
|
|
full_name.push_str(name);
|
|
|
|
let tex = Texture {
|
|
name: full_name.clone(),
|
|
version: self.version,
|
|
atlas,
|
|
x: rect.x,
|
|
y: rect.y,
|
|
width: rect.width,
|
|
height: rect.height,
|
|
rel_x: 0.0,
|
|
rel_y: 0.0,
|
|
rel_width: 1.0,
|
|
rel_height: 1.0,
|
|
is_rel: false,
|
|
};
|
|
self.textures.insert(full_name, tex.clone());
|
|
tex
|
|
}
|
|
|
|
fn find_free(&mut self, width: usize, height: usize) -> (i32, atlas::Rect) {
|
|
let mut index = 0;
|
|
for atlas in &mut self.atlases {
|
|
if let Some(rect) = atlas.add(width, height) {
|
|
return (index, rect);
|
|
}
|
|
index += 1;
|
|
}
|
|
let mut atlas = atlas::Atlas::new(ATLAS_SIZE, ATLAS_SIZE);
|
|
let rect = atlas.add(width, height);
|
|
self.atlases.push(atlas);
|
|
(index, rect.unwrap())
|
|
}
|
|
|
|
fn insert_texture_dummy(&mut self, plugin: &str, name: &str) -> Texture {
|
|
let missing = self.get_texture("steven:missing_texture").unwrap();
|
|
|
|
let mut full_name = String::new();
|
|
full_name.push_str(plugin);
|
|
full_name.push_str(":");
|
|
full_name.push_str(name);
|
|
|
|
let t = Texture {
|
|
name: full_name.to_owned(),
|
|
version: self.version,
|
|
atlas: missing.atlas,
|
|
x: missing.x,
|
|
y: missing.y,
|
|
width: missing.width,
|
|
height: missing.height,
|
|
rel_x: 0.0,
|
|
rel_y: 0.0,
|
|
rel_width: 1.0,
|
|
rel_height: 1.0,
|
|
is_rel: false,
|
|
};
|
|
self.textures.insert(full_name.to_owned(), t.clone());
|
|
t
|
|
}
|
|
|
|
pub fn put_dynamic(&mut self, name: &str, img: image::DynamicImage) -> Texture {
|
|
use std::mem;
|
|
let (width, height) = img.dimensions();
|
|
let (width, height) = (width as usize, height as usize);
|
|
let mut rect_pos = None;
|
|
for (i, r) in self.free_dynamics.iter().enumerate() {
|
|
if r.width == width && r.height == height {
|
|
rect_pos = Some(i);
|
|
break;
|
|
} else if r.width >= width && r.height >= height {
|
|
rect_pos = Some(i);
|
|
}
|
|
}
|
|
let data = img.to_rgba().into_vec();
|
|
|
|
if let Some(rect_pos) = rect_pos {
|
|
let mut tex = self.free_dynamics.remove(rect_pos);
|
|
let rect = atlas::Rect {
|
|
x: tex.x,
|
|
y: tex.y,
|
|
width,
|
|
height,
|
|
};
|
|
self.pending_uploads.push((tex.atlas, rect, data));
|
|
let mut t = tex.relative(0.0, 0.0, (width as f32) / (tex.width as f32), (height as f32) / (tex.height as f32));
|
|
let old_name = mem::replace(&mut tex.name, format!("steven-dynamic:{}", name));
|
|
self.dynamic_textures.insert(name.to_owned(), (tex.clone(), img));
|
|
// We need to rename the texture itself so that get_texture calls
|
|
// work with the new name
|
|
let mut old = self.textures.remove(&old_name).unwrap();
|
|
old.name = format!("steven-dynamic:{}", name);
|
|
t.name = old.name.clone();
|
|
self.textures.insert(format!("steven-dynamic:{}", name), old);
|
|
t
|
|
} else {
|
|
let tex = self.put_texture("steven-dynamic", name, width as u32, height as u32, data);
|
|
self.dynamic_textures.insert(name.to_owned(), (tex.clone(), img));
|
|
tex
|
|
}
|
|
}
|
|
|
|
pub fn remove_dynamic(&mut self, name: &str) {
|
|
let desc = self.dynamic_textures.remove(name).unwrap();
|
|
self.free_dynamics.push(desc.0);
|
|
}
|
|
}
|
|
|
|
#[allow(dead_code)]
|
|
struct AnimatedTexture {
|
|
frames: Vec<AnimationFrame>,
|
|
data: Vec<u8>,
|
|
interpolate: bool,
|
|
current_frame: usize,
|
|
remaining_time: f64,
|
|
texture: Texture,
|
|
}
|
|
|
|
struct AnimationFrame {
|
|
index: usize,
|
|
time: i64,
|
|
}
|
|
|
|
#[derive(Clone, Debug)]
|
|
pub struct Texture {
|
|
pub name: String,
|
|
version: usize,
|
|
pub atlas: i32,
|
|
x: usize,
|
|
y: usize,
|
|
width: usize,
|
|
height: usize,
|
|
is_rel: bool, // Save some cycles for non-relative textures
|
|
rel_x: f32,
|
|
rel_y: f32,
|
|
rel_width: f32,
|
|
rel_height: f32,
|
|
}
|
|
|
|
impl Texture {
|
|
pub fn get_x(&self) -> usize {
|
|
if self.is_rel {
|
|
self.x + ((self.width as f32) * self.rel_x) as usize
|
|
} else {
|
|
self.x
|
|
}
|
|
}
|
|
|
|
pub fn get_y(&self) -> usize {
|
|
if self.is_rel {
|
|
self.y + ((self.height as f32) * self.rel_y) as usize
|
|
} else {
|
|
self.y
|
|
}
|
|
}
|
|
|
|
pub fn get_width(&self) -> usize {
|
|
if self.is_rel {
|
|
((self.width as f32) * self.rel_width) as usize
|
|
} else {
|
|
self.width
|
|
}
|
|
}
|
|
|
|
pub fn get_height(&self) -> usize {
|
|
if self.is_rel {
|
|
((self.height as f32) * self.rel_height) as usize
|
|
} else {
|
|
self.height
|
|
}
|
|
}
|
|
|
|
pub fn relative(&self, x: f32, y: f32, width: f32, height: f32) -> Texture {
|
|
Texture {
|
|
name: self.name.clone(),
|
|
version: self.version,
|
|
x: self.x,
|
|
y: self.y,
|
|
atlas: self.atlas,
|
|
width: self.width,
|
|
height: self.height,
|
|
is_rel: true,
|
|
rel_x: self.rel_x + x * self.rel_width,
|
|
rel_y: self.rel_y + y * self.rel_height,
|
|
rel_width: width * self.rel_width,
|
|
rel_height: height * self.rel_height,
|
|
}
|
|
}
|
|
}
|
|
|
|
#[allow(unused_must_use)]
|
|
pub fn generate_element_buffer(size: usize) -> (Vec<u8>, gl::Type) {
|
|
let mut ty = gl::UNSIGNED_SHORT;
|
|
let mut data = if (size / 6) * 4 * 3 >= u16::max_value() as usize {
|
|
ty = gl::UNSIGNED_INT;
|
|
Vec::with_capacity(size * 4)
|
|
} else {
|
|
Vec::with_capacity(size * 2)
|
|
};
|
|
for i in 0..size / 6 {
|
|
for val in &[0, 1, 2, 2, 1, 3] {
|
|
if ty == gl::UNSIGNED_INT {
|
|
data.write_u32::<NativeEndian>((i as u32) * 4 + val);
|
|
} else {
|
|
data.write_u16::<NativeEndian>((i as u16) * 4 + (*val as u16));
|
|
}
|
|
}
|
|
}
|
|
|
|
(data, ty)
|
|
}
|