| djgcn |
07-02-11 01:37 |
Graphics32是个BCB/Delphi/Kylix用的2D绘图库，
其功能特殊之处，在於在无须硬体加速的情况下，
能够有接近於一百倍Delphi內置绘图库的高速度。
首页：http://www.graphics32.org/wiki/
它的原理除了部份计算公式的改善外，更重要的著眼点是，
完全基於32位元的图形运算，其原理在於。
- 在32位元的环境下，大部分的函式皆有最好的速度表现
- 基於四位元组为基础的记忆存取为最高速
- 图片的Alpha混成在32位元下速度最快
- 单一化的接口和处理方式
- 完全基於32位元，可应用更多最佳化的方式
这是原文的功能列表：
Fast per-pixel access up to 100 times faster compared to standard TBitmap?;
High-performance Bitmap alpha blending (including per-pixel alpha blending);
Pixel, line and polygon antialiasing with sub-pixel accuracy (combined with alpha blending);
Arbitrary polygon transformations and custom fillings;
Bitmap resampling with high quality reconstruction filters (e.g. Lanczos, Cubic, Mitchell);
A unique state-of-the-art rasterization system;
Affine transformations of bitmaps: rotations, scaling, etc with sub-pixel accuracy;
Arbitrary projective transformations of bitmaps;
Arbitrary remapping transformations of bitmaps (e.g. for Warping, Morphing);
Flexible supersampling implementation for maximum sampling quality;
Flicker-free image displaying components with optimized double buffering via advanced MicroTiles? based repaint optimizer;
Multiple customizible easy-to-use overlay layers;
Locking of bitmaps for safe multithreading;
A property editor for RGB and alpha channel loading;
Design-time loading of image formats supported by standard TPicture;
Works on Borland Delphi, C++ Builder and Kylix.
某些基於Pascal的新兴程式语言如Cobra已开始採用此函式库作为绘图库，
如果你是Delphi用户或习惯於Pascal语法，务必试试这个引擎。 |
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