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This repository was archived by the owner on Oct 10, 2023. It is now read-only.
/gboxPublic archive

🎨 A multi-platform graphic library

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The Graphic Box Library

No longer maintained

See new project:lanox2d

Introduction

gbox is a mutli-platform c graphic library.

It is now in the early stages of development only for reference and learning.

If you are interesting to this project, please view the source code.

Features

  • Support 2d vector drawing
  • Support matrix transform
  • Support fill and stroke for solid, gradient and image
  • Support custom path and drawing
  • Support float and fixed point computation
  • Provide custom drawing devices
  • Support OpenGL ES 1.0/2.0
  • Support soft algorithm for drawing
  • Implement mesh structure and algorithm
  • Implement complex polygon tessellator and triangulation
  • Support odd and nonzero fill
  • Implement polygon scanning algorithm
  • Provide multi-platform windows(.e.g glut, sdl and x11, framebuffer, ios, android in the feature)

In the plans

  • Draw svg images
  • Implement anti-aliasing
  • More drawing devices and windows
  • Draw text
  • Development ui and game engine

Build

please install xmake first:xmake

$ cd ./gbox$ xmake

Run

$ xmake run core

Documents

Contacts

简介

GBOX是一个用c语言实现的多平台图形库,支持windows、linux、mac、ios、android以及其他嵌入式系统。

现在这个项目,正处于早期开发阶段,暂不提供使用,仅供参考学习

如果您感兴趣,可以阅读源码

已实现的功能

  • 矢量2d渲染,支持矩阵变换,画刷、画笔的设置和渲染
  • 支持复杂矢量路径渲染和填充
  • 支持纯色填充、梯度填充、图像填充(正在重构)
  • 支持全定点或者浮点计算(可配置切换)
  • 实现渲染设备扩展,目前支持gpu加速的opengl es 1.0/2.0设备、纯算法渲染的bitmap设备
  • 实现复杂多边形分割(三角形分割、凸多边形分割),支持奇偶填充、非零填充等填充规则(这个算法花了我一年时间 =。=)
  • 实现mesh结构和封装
  • 实现多边形扫描算法
  • 支持多平台窗口扩展,目前支持glut、sdl窗口,后续会支持(x11,framebuffer, ios/android,windows等原生窗口)

后续工作

  • svg矢量图形渲染(之前的版本实现过一整套,最近正在重构,所以暂时移除了)
  • 反走样支持
  • 实现更多平台窗口和渲染设备
  • 实现字体渲染
  • ui框架的实现
  • 有时间的话,再整整游戏引擎,当然这个是后话,看心情和时间了。

测试效果

  • 目前基于opengl的渲染设备,绘制tiger.svg可达到60fps
  • 基于bitmap的纯算法渲染设备,绘制tiger.svg可达到30-40fps(pc上测试,数据仅供参考)

编译

请先安装:xmake

cd ./gboxxmake

运行

$ xmake run core

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