/******************************************************************************
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* Spine Runtimes Software License v2.5
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*
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* Copyright (c) 2013-2016, Esoteric Software
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* All rights reserved.
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*
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* You are granted a perpetual, non-exclusive, non-sublicensable, and
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* non-transferable license to use, install, execute, and perform the Spine
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* Runtimes software and derivative works solely for personal or internal
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* use. Without the written permission of Esoteric Software (see Section 2 of
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* the Spine Software License Agreement), you may not (a) modify, translate,
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* adapt, or develop new applications using the Spine Runtimes or otherwise
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* create derivative works or improvements of the Spine Runtimes or (b) remove,
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* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
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* or other intellectual property or proprietary rights notices on or in the
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* Software, including any copy thereof. Redistributions in binary or source
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* form must include this license and terms.
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*
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* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
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* USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* 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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using System.Reflection;
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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 !(UNITY_5 || UNITY_4 || UNITY_WSA || UNITY_WP8 || UNITY_WP8_1) // !UNITY
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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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#if WINDOWS_PHONE
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Stream stream = Microsoft.Xna.Framework.TitleContainer.OpenStream(path);
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using (StreamReader reader = new StreamReader(stream)) {
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#else
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using (StreamReader reader = new StreamReader(path)) {
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#endif // WINDOWS_PHONE
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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 // WINDOWS_STOREAPP
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#endif // !(UNITY)
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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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public Atlas (List<AtlasPage> pages, List<AtlasRegion> regions) {
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this.pages = pages;
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this.regions = regions;
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this.textureLoader = null;
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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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if (ReadTuple(reader, tuple) == 2) { // size is only optional for an atlas packed with an old TexturePacker.
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page.width = int.Parse(tuple[0]);
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page.height = int.Parse(tuple[1]);
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ReadTuple(reader, tuple);
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}
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page.format = (Format)Enum.Parse(typeof(Format), tuple[0], false);
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ReadTuple(reader, tuple);
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page.minFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), tuple[0], false);
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page.magFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), tuple[1], false);
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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 (1, 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) break;
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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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public void FlipV () {
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for (int i = 0, n = regions.Count; i < n; i++) {
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AtlasRegion region = regions[i];
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region.v = 1 - region.v;
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region.v2 = 1 - region.v2;
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}
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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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if (textureLoader == null) return;
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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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