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@pharan pharan/Atlas.cs
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NumberStyle-specified version of the Atlas.cs Spine atlas loader.
/******************************************************************************
* Spine Runtimes Software License v2.5
*
* Copyright (c) 2013-2016, Esoteric Software
* All rights reserved.
*
* You are granted a perpetual, non-exclusive, non-sublicensable, and
* non-transferable license to use, install, execute, and perform the Spine
* Runtimes software and derivative works solely for personal or internal
* use. Without the written permission of Esoteric Software (see Section 2 of
* the Spine Software License Agreement), you may not (a) modify, translate,
* adapt, or develop new applications using the Spine Runtimes or otherwise
* create derivative works or improvements of the Spine Runtimes or (b) remove,
* delete, alter, or obscure any trademarks or any copyright, trademark, patent,
* or other intellectual property or proprietary rights notices on or in the
* Software, including any copy thereof. Redistributions in binary or source
* form must include this license and terms.
*
* THIS SOFTWARE IS PROVIDED BY ESOTERIC SOFTWARE "AS IS" AND ANY EXPRESS OR
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL ESOTERIC SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES, BUSINESS INTERRUPTION, OR LOSS OF
* USE, DATA, OR PROFITS) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*****************************************************************************/
#if (UNITY_5 || UNITY_5_3_OR_NEWER || UNITY_WSA || UNITY_WP8 || UNITY_WP8_1)
#define IS_UNITY
#endif
using System;
using System.Collections.Generic;
using System.IO;
using System.Reflection;
#if WINDOWS_STOREAPP
using System.Threading.Tasks;
using Windows.Storage;
#endif
namespace Spine {
public class Atlas : IEnumerable<AtlasRegion> {
readonly List<AtlasPage> pages = new List<AtlasPage>();
List<AtlasRegion> regions = new List<AtlasRegion>();
TextureLoader textureLoader;
#region IEnumerable implementation
public IEnumerator<AtlasRegion> GetEnumerator () {
return regions.GetEnumerator();
}
System.Collections.IEnumerator System.Collections.IEnumerable.GetEnumerator () {
return regions.GetEnumerator();
}
#endregion
#if !(IS_UNITY)
#if WINDOWS_STOREAPP
private async Task ReadFile(string path, TextureLoader textureLoader) {
var folder = Windows.ApplicationModel.Package.Current.InstalledLocation;
var file = await folder.GetFileAsync(path).AsTask().ConfigureAwait(false);
using (var reader = new StreamReader(await file.OpenStreamForReadAsync().ConfigureAwait(false))) {
try {
Load(reader, Path.GetDirectoryName(path), textureLoader);
} catch (Exception ex) {
throw new Exception("Error reading atlas file: " + path, ex);
}
}
}
public Atlas(string path, TextureLoader textureLoader) {
this.ReadFile(path, textureLoader).Wait();
}
#else
public Atlas (string path, TextureLoader textureLoader) {
#if WINDOWS_PHONE
Stream stream = Microsoft.Xna.Framework.TitleContainer.OpenStream(path);
using (StreamReader reader = new StreamReader(stream)) {
#else
using (StreamReader reader = new StreamReader(path)) {
#endif // WINDOWS_PHONE
try {
Load(reader, Path.GetDirectoryName(path), textureLoader);
} catch (Exception ex) {
throw new Exception("Error reading atlas file: " + path, ex);
}
}
}
#endif // WINDOWS_STOREAPP
#endif
public Atlas (TextReader reader, string dir, TextureLoader textureLoader) {
Load(reader, dir, textureLoader);
}
public Atlas (List<AtlasPage> pages, List<AtlasRegion> regions) {
this.pages = pages;
this.regions = regions;
this.textureLoader = null;
}
private void Load (TextReader reader, string imagesDir, TextureLoader textureLoader) {
if (textureLoader == null) throw new ArgumentNullException("textureLoader", "textureLoader cannot be null.");
this.textureLoader = textureLoader;
const System.Globalization.NumberStyles IntStyle = System.Globalization.NumberStyles.Integer;
var InvariantCulture = System.Globalization.CultureInfo.InvariantCulture;
string[] tuple = new string[4];
AtlasPage page = null;
while (true) {
string line = reader.ReadLine();
if (line == null) break;
if (line.Trim().Length == 0)
page = null;
else if (page == null) {
page = new AtlasPage {
name = line
};
if (ReadTuple(reader, tuple) == 2) { // size is only optional for an atlas packed with an old TexturePacker.
page.width = int.Parse(tuple[0], IntStyle, InvariantCulture);
page.height = int.Parse(tuple[1], IntStyle, InvariantCulture);
ReadTuple(reader, tuple);
}
page.format = (Format)Enum.Parse(typeof(Format), tuple[0], false);
ReadTuple(reader, tuple);
page.minFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), tuple[0], false);
page.magFilter = (TextureFilter)Enum.Parse(typeof(TextureFilter), tuple[1], false);
string direction = ReadValue(reader);
page.uWrap = TextureWrap.ClampToEdge;
page.vWrap = TextureWrap.ClampToEdge;
if (direction == "x")
page.uWrap = TextureWrap.Repeat;
else if (direction == "y")
page.vWrap = TextureWrap.Repeat;
else if (direction == "xy")
page.uWrap = page.vWrap = TextureWrap.Repeat;
textureLoader.Load(page, Path.Combine(imagesDir, line));
pages.Add(page);
} else {
AtlasRegion region = new AtlasRegion();
region.name = line;
region.page = page;
region.rotate = Boolean.Parse(ReadValue(reader));
ReadTuple(reader, tuple);
int x = int.Parse(tuple[0], IntStyle, InvariantCulture);
int y = int.Parse(tuple[1], IntStyle, InvariantCulture);
ReadTuple(reader, tuple);
int width = int.Parse(tuple[0], IntStyle, InvariantCulture);
int height = int.Parse(tuple[1], IntStyle, InvariantCulture);
region.u = x / (float)page.width;
region.v = y / (float)page.height;
if (region.rotate) {
region.u2 = (x + height) / (float)page.width;
region.v2 = (y + width) / (float)page.height;
} else {
region.u2 = (x + width) / (float)page.width;
region.v2 = (y + height) / (float)page.height;
}
region.x = x;
region.y = y;
region.width = Math.Abs(width);
region.height = Math.Abs(height);
if (ReadTuple(reader, tuple) == 4) { // split is optional
region.splits = new [] {int.Parse(tuple[0], IntStyle, InvariantCulture), int.Parse(tuple[1], IntStyle, InvariantCulture),
int.Parse(tuple[2], IntStyle, InvariantCulture), int.Parse(tuple[3], IntStyle, InvariantCulture)};
if (ReadTuple(reader, tuple) == 4) { // pad is optional, but only present with splits
region.pads = new [] {int.Parse(tuple[0], IntStyle, InvariantCulture), int.Parse(tuple[1], IntStyle, InvariantCulture),
int.Parse(tuple[2], IntStyle, InvariantCulture), int.Parse(tuple[3], IntStyle, InvariantCulture)};
ReadTuple(reader, tuple);
}
}
region.originalWidth = int.Parse(tuple[0], IntStyle, InvariantCulture);
region.originalHeight = int.Parse(tuple[1], IntStyle, InvariantCulture);
ReadTuple(reader, tuple);
region.offsetX = int.Parse(tuple[0], IntStyle, InvariantCulture);
region.offsetY = int.Parse(tuple[1], IntStyle, InvariantCulture);
region.index = int.Parse(ReadValue(reader), IntStyle, InvariantCulture);
regions.Add(region);
}
}
}
static string ReadValue (TextReader reader) {
string line = reader.ReadLine();
int colon = line.IndexOf(':');
if (colon == -1) throw new Exception("Invalid line: " + line);
return line.Substring(colon + 1).Trim();
}
/// <summary>Returns the number of tuple values read (1, 2 or 4).</summary>
static int ReadTuple (TextReader reader, string[] tuple) {
string line = reader.ReadLine();
int colon = line.IndexOf(':');
if (colon == -1) throw new Exception("Invalid line: " + line);
int i = 0, lastMatch = colon + 1;
for (; i < 3; i++) {
int comma = line.IndexOf(',', lastMatch);
if (comma == -1) break;
tuple[i] = line.Substring(lastMatch, comma - lastMatch).Trim();
lastMatch = comma + 1;
}
tuple[i] = line.Substring(lastMatch).Trim();
return i + 1;
}
public void FlipV () {
for (int i = 0, n = regions.Count; i < n; i++) {
AtlasRegion region = regions[i];
region.v = 1 - region.v;
region.v2 = 1 - region.v2;
}
}
/// <summary>Returns the first region found with the specified name. This method uses string comparison to find the region, so the result
/// should be cached rather than calling this method multiple times.</summary>
/// <returns>The region, or null.</returns>
public AtlasRegion FindRegion (string name) {
for (int i = 0, n = regions.Count; i < n; i++)
if (regions[i].name == name) return regions[i];
return null;
}
public void Dispose () {
if (textureLoader == null) return;
for (int i = 0, n = pages.Count; i < n; i++)
textureLoader.Unload(pages[i].rendererObject);
}
}
public enum Format {
Alpha,
Intensity,
LuminanceAlpha,
RGB565,
RGBA4444,
RGB888,
RGBA8888
}
public enum TextureFilter {
Nearest,
Linear,
MipMap,
MipMapNearestNearest,
MipMapLinearNearest,
MipMapNearestLinear,
MipMapLinearLinear
}
public enum TextureWrap {
MirroredRepeat,
ClampToEdge,
Repeat
}
public class AtlasPage {
public string name;
public Format format;
public TextureFilter minFilter;
public TextureFilter magFilter;
public TextureWrap uWrap;
public TextureWrap vWrap;
public Object rendererObject;
public int width, height;
}
public class AtlasRegion {
public AtlasPage page;
public string name;
public int x, y, width, height;
public float u, v, u2, v2;
public float offsetX, offsetY;
public int originalWidth, originalHeight;
public int index;
public bool rotate;
public int[] splits;
public int[] pads;
}
public interface TextureLoader {
void Load (AtlasPage page, string path);
void Unload (Object texture);
}
}
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