tbyxyz

不错的C++图像库DevIL

在使用CxImage显示gif文件时，发现CxImage解一个299帧的gif动画，在debug的时候花了好几时秒，
CxImage在处理gif时效率太低了。
在网上搜索了一些，支持比较强的图像库：
imageMagick--非常强大，在MFC中不好用，要把图片显示到窗口非常麻烦，至少目前没有发现在Windows窗口中显示的方法，还得加一堆乱七八糟的dll。

还是DevIL比较好使一点，感觉DevIL封装的不是很好，全局变量太多，多线程操作极不安全。用C++在封装一下，可能就好使一点。

附：

DevIL Feature List

Library Features

• Portable, supports Windows, Mac OS X and *nix.
• OpenGL-style syntax.
• Use of image names instead of ugly pointers.
• Loading from files, file streams or memory "lumps".
• Direct access to data through ilGetData() and ilSetData().
• Support for luminance, rgb(a), bgr(a) and colour-indexed images.
• Support for 3 different numbers of bits per channel.
• Conversion between all formats and datatypes (including palettes).
• User-defined automatic conversions if desired when loading images.
• Automatic conversion when saving images if needed.
• Automatic conversion of colour-indexed images to truecolour images if desired.
• Controllable compression when saving.
• Maintains a state stack that can be pushed and popped.
• Full support for 3d texture volumes (3d images).
• Validation of images.
• Support for layers.
• Support for mipmaps.
• Support for animations.
• User-specified clear colour.
• Can load a default image if loading fails.
• User-specified hints.
• Use of key colours.
• Support for overlaying an image on top of another.
• Allows the user to specify their own loading and saving callbacks, even overriding the default ones.
• Support for user-specified read and write functions.
• Delphi support.
• Visual Basic support.
• Linux support.
• Can pick and choose which features will be used to create smaller dlls.
• Choose whether to use the Intel Jpeg Library or libjpeg.
• A whole host of effects and filters to apply to images, such as embossing and edge detection.
• Images can be resized or even be put on a larger background (enlarged canvas).
• OpenGL, Allegro, Windows GDI and DirectX API support.

posted on 2008-01-15 17:17 hosea 阅读(4681) 评论(5)  编辑 收藏 引用