mirror of
https://github.com/EsotericSoftware/spine-runtimes.git
synced 2025-12-22 10:16:01 +08:00
267 lines
8.7 KiB
C#
267 lines
8.7 KiB
C#
/******************************************************************************
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* Spine Runtime Software License - Version 1.0
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*
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* Copyright (c) 2013, Esoteric Software
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms in whole or in part, with
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* or without modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. A Spine Single User License or Spine Professional License must be
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* purchased from Esoteric Software and the license must remain valid:
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* http://esotericsoftware.com/
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* 2. Redistributions of source code must retain this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer.
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* 3. Redistributions in binary form must reproduce this license, which is the
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* above copyright notice, this declaration of conditions and the following
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* disclaimer, in the documentation and/or other materials provided with the
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* distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
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* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
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* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*****************************************************************************/
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using System;
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using System.Collections.Generic;
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using System.IO;
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#if WINDOWS_STOREAPP
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using System.Threading.Tasks;
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using Windows.Storage;
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#endif
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namespace Spine {
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public class Atlas {
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List<AtlasPage> pages = new List<AtlasPage>();
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List<AtlasRegion> regions = new List<AtlasRegion>();
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TextureLoader textureLoader;
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#if WINDOWS_STOREAPP
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private async Task ReadFile(string path, TextureLoader textureLoader) {
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var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
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var file = await folder.GetFileAsync(path).AsTask().ConfigureAwait(false);
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using (var reader = new StreamReader(await file.OpenStreamForReadAsync().ConfigureAwait(false))) {
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try {
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Load(reader, Path.GetDirectoryName(path), textureLoader);
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} catch (Exception ex) {
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throw new Exception("Error reading atlas file: " + path, ex);
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}
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}
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}
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public Atlas(String path, TextureLoader textureLoader) {
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this.ReadFile(path, textureLoader).Wait();
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}
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#else
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public Atlas (String path, TextureLoader textureLoader) {
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using (StreamReader reader = new StreamReader(path)) {
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try {
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Load(reader, Path.GetDirectoryName(path), textureLoader);
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} catch (Exception ex) {
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throw new Exception("Error reading atlas file: " + path, ex);
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}
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}
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}
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#endif
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public Atlas (TextReader reader, String dir, TextureLoader textureLoader) {
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Load(reader, dir, textureLoader);
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}
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private void Load (TextReader reader, String imagesDir, TextureLoader textureLoader) {
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if (textureLoader == null) throw new ArgumentNullException("textureLoader cannot be null.");
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this.textureLoader = textureLoader;
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String[] tuple = new String[4];
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AtlasPage page = null;
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while (true) {
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String line = reader.ReadLine();
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if (line == null) break;
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if (line.Trim().Length == 0)
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page = null;
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else if (page == null) {
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page = new AtlasPage();
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page.name = line;
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page.format = (Format)Enum.Parse(typeof(Format), readValue(reader), false);
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readTuple(reader, tuple);
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page.minFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), tuple[0]);
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page.magFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), tuple[1]);
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String direction = readValue(reader);
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page.uWrap = TextureWrap.ClampToEdge;
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page.vWrap = TextureWrap.ClampToEdge;
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if (direction == "x")
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page.uWrap = TextureWrap.Repeat;
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else if (direction == "y")
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page.vWrap = TextureWrap.Repeat;
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else if (direction == "xy")
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page.uWrap = page.vWrap = TextureWrap.Repeat;
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textureLoader.Load(page, Path.Combine(imagesDir, line));
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pages.Add(page);
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} else {
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AtlasRegion region = new AtlasRegion();
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region.name = line;
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region.page = page;
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region.rotate = Boolean.Parse(readValue(reader));
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readTuple(reader, tuple);
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int x = int.Parse(tuple[0]);
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int y = int.Parse(tuple[1]);
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readTuple(reader, tuple);
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int width = int.Parse(tuple[0]);
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int height = int.Parse(tuple[1]);
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region.u = x / (float)page.width;
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region.v = y / (float)page.height;
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if (region.rotate) {
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region.u2 = (x + height) / (float)page.width;
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region.v2 = (y + width) / (float)page.height;
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} else {
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region.u2 = (x + width) / (float)page.width;
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region.v2 = (y + height) / (float)page.height;
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}
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region.x = x;
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region.y = y;
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region.width = Math.Abs(width);
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region.height = Math.Abs(height);
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if (readTuple(reader, tuple) == 4) { // split is optional
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region.splits = new int[] {int.Parse(tuple[0]), int.Parse(tuple[1]),
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int.Parse(tuple[2]), int.Parse(tuple[3])};
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if (readTuple(reader, tuple) == 4) { // pad is optional, but only present with splits
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region.pads = new int[] {int.Parse(tuple[0]), int.Parse(tuple[1]),
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int.Parse(tuple[2]), int.Parse(tuple[3])};
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readTuple(reader, tuple);
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}
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}
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region.originalWidth = int.Parse(tuple[0]);
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region.originalHeight = int.Parse(tuple[1]);
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readTuple(reader, tuple);
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region.offsetX = int.Parse(tuple[0]);
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region.offsetY = int.Parse(tuple[1]);
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region.index = int.Parse(readValue(reader));
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regions.Add(region);
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}
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}
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}
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static String readValue (TextReader reader) {
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String line = reader.ReadLine();
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int colon = line.IndexOf(':');
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if (colon == -1) throw new Exception("Invalid line: " + line);
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return line.Substring(colon + 1).Trim();
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}
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/// <summary>Returns the number of tuple values read (2 or 4).</summary>
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static int readTuple (TextReader reader, String[] tuple) {
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String line = reader.ReadLine();
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int colon = line.IndexOf(':');
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if (colon == -1) throw new Exception("Invalid line: " + line);
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int i = 0, lastMatch = colon + 1;
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for (; i < 3; i++) {
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int comma = line.IndexOf(',', lastMatch);
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if (comma == -1) {
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if (i == 0) throw new Exception("Invalid line: " + line);
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break;
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}
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tuple[i] = line.Substring(lastMatch, comma - lastMatch).Trim();
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lastMatch = comma + 1;
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}
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tuple[i] = line.Substring(lastMatch).Trim();
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return i + 1;
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}
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/// <summary>Returns the first region found with the specified name. This method uses string comparison to find the region, so the result
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/// should be cached rather than calling this method multiple times.</summary>
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/// <returns>The region, or null.</returns>
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public AtlasRegion FindRegion (String name) {
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for (int i = 0, n = regions.Count; i < n; i++)
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if (regions[i].name == name) return regions[i];
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return null;
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}
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public void Dispose () {
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for (int i = 0, n = pages.Count; i < n; i++)
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textureLoader.Unload(pages[i].rendererObject);
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}
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}
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public enum Format {
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Alpha,
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Intensity,
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LuminanceAlpha,
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RGB565,
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RGBA4444,
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RGB888,
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RGBA8888
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}
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public enum TextureFilter {
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Nearest,
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Linear,
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MipMap,
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MipMapNearestNearest,
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MipMapLinearNearest,
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MipMapNearestLinear,
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MipMapLinearLinear
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}
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public enum TextureWrap {
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MirroredRepeat,
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ClampToEdge,
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Repeat
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}
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public class AtlasPage {
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public String name;
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public Format format;
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public TextureFilter minFilter;
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public TextureFilter magFilter;
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public TextureWrap uWrap;
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public TextureWrap vWrap;
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public Object rendererObject;
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public int width, height;
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}
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public class AtlasRegion {
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public AtlasPage page;
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public String name;
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public int x, y, width, height;
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public float u, v, u2, v2;
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public float offsetX, offsetY;
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public int originalWidth, originalHeight;
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public int index;
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public bool rotate;
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public int[] splits;
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public int[] pads;
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}
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public interface TextureLoader {
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void Load (AtlasPage page, String path);
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void Unload (Object texture);
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}
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}
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