Slick2D 意外错误

Question

我一直在使用 Slick2D 制作游戏，最近开始不得不使用控制台进行调试，我注意到我收到了以下错误：

Mon Jun 02 16:13:35 BST 2014 WARN:class org.newdawn.slick.opengl.PNGImageData failed to read the data
java.lang.UnsupportedOperationException: Unsupported format for this image
    at org.newdawn.slick.opengl.PNGDecoder.decode(PNGDecoder.java:272)
    at org.newdawn.slick.opengl.PNGImageData.loadImage(PNGImageData.java:97)
    at org.newdawn.slick.opengl.CompositeImageData.loadImage(CompositeImageData.java:62)
    at org.newdawn.slick.opengl.CompositeImageData.loadImage(CompositeImageData.java:43)
    at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:292)
    at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:254)
    at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:187)
    at org.newdawn.slick.Image.<init>(Image.java:192)
    at org.newdawn.slick.Image.<init>(Image.java:166)
    at org.newdawn.slick.Image.<init>(Image.java:154)
    at org.newdawn.slick.Image.<init>(Image.java:132)
    at luke_r.java.project_alpha.SplashScreenInitiator.init(SplashScreenInitiator.java:27)
    at org.newdawn.slick.state.StateBasedGame.init(StateBasedGame.java:171)
    at org.newdawn.slick.AppGameContainer.setup(AppGameContainer.java:393)
    at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:317)
    at luke_r.java.project_alpha.Core.main(Core.java:21)
Mon Jun 02 16:13:35 BST 2014 INFO:Initialising sounds..
Mon Jun 02 16:13:35 BST 2014 INFO:- Sound works
Mon Jun 02 16:13:35 BST 2014 INFO:- 64 OpenAL source available
Mon Jun 02 16:13:35 BST 2014 INFO:- Sounds source generated
Mon Jun 02 16:13:35 BST 2014 WARN:class org.newdawn.slick.opengl.PNGImageData failed to read the data
java.lang.UnsupportedOperationException: Unsupported format for this image
    at org.newdawn.slick.opengl.PNGDecoder.decode(PNGDecoder.java:272)
    at org.newdawn.slick.opengl.PNGImageData.loadImage(PNGImageData.java:97)
    at org.newdawn.slick.opengl.CompositeImageData.loadImage(CompositeImageData.java:62)
    at org.newdawn.slick.opengl.CompositeImageData.loadImage(CompositeImageData.java:43)
    at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:292)
    at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:254)
    at org.newdawn.slick.opengl.InternalTextureLoader.getTexture(InternalTextureLoader.java:187)
    at org.newdawn.slick.Image.<init>(Image.java:192)
    at org.newdawn.slick.Image.<init>(Image.java:166)
    at org.newdawn.slick.Image.<init>(Image.java:154)
    at org.newdawn.slick.Image.<init>(Image.java:132)
    at luke_r.java.project_alpha.ImageManager.load(ImageManager.java:14)
    at luke_r.java.project_alpha.SplashScreenInitiator.init(SplashScreenInitiator.java:30)
    at org.newdawn.slick.state.StateBasedGame.init(StateBasedGame.java:171)
    at org.newdawn.slick.AppGameContainer.setup(AppGameContainer.java:393)
    at org.newdawn.slick.AppGameContainer.start(AppGameContainer.java:317)
    at luke_r.java.project_alpha.Core.main(Core.java:21)

我完全不知道（经过大量研究）是什么原因造成的。请解释一下？

编辑：这是它不喜欢第一个错误的行：splash = new Image("res/img/splash.png"); 这是第二个错误不喜欢的行：sandMap = new Image("res/img/map/sandmap.png");

编辑 2： Sandmap.png Splash.png

Answer 1

如果您仍然遇到此问题，那么我可能有一个解决方案。我使用paint.net 并遇到了同样的问题。当您从paint.net 保存图像时，选择保存位置后会弹出保存配置窗口。对我来说，我必须将位深度从 8 位更改为 32 位。自动检测有时会起作用，但前提是它会自动检测为 32 位。我还没有测试过 24 位，它也可以工作。希望这会有所帮助。

Answer 2

org.newdawn.slick.opengl.PNGImageData 读取数据失败

此图片格式不支持

错误消息说明出了什么问题。您的图像已损坏、不受支持或未正确保存。你用的是什么类型的图片？

Answer 3

@Anubian 是正确的，您的 PNG 必须已损坏。尝试重新制作它或使用其他软件来创建它。查看 Slick2D 在哪里抛出异常 here。我尝试使用 Wolfgang Fellger 的 PNG Analyzer，但我什至无法打开你的图片。