https://gitlab.com/simulant/GLdc

GLdc: an OpenGL implementation for the SEGA Dreamcast
https://gitlab.com/simulant/GLdc

Last synced: 4 days ago
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GLdc: an OpenGL implementation for the SEGA Dreamcast

• Host: gitlab.com
• URL: https://gitlab.com/simulant/GLdc
• Owner: simulant
• License: bsd-2-clause
• Created: 2018-10-20T20:45:10.266Z (about 6 years ago)
• Default Branch: master
• Last Synced: 2024-08-02T14:05:07.498Z (3 months ago)
• Stars: 26
• Forks: 18
• Open Issues: 34
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

Awesome Lists containing this project

• awesome-dreamcast - GLdc - A OpenGL 1.2 implementation started by Kazade (Graphics)

README

        

# GLdc

**Development of GLdc has moved to [Gitlab](https://gitlab.com/simulant/GLdc)**

This is a partial implementation of OpenGL 1.2 for the SEGA Dreamcast for use

with the KallistiOS SDK.

It began as a fork of libGL by Josh Pearson but has undergone a large refactor

which is essentially a rewrite.

The aim is to implement as much of OpenGL 1.2 as possible, and to add additional

features via extensions.

Things left to (re)implement:

 - Spotlights (Trivial)

 - Framebuffer extension (Trivial)

 - Texture Matrix (Trivial)

 

Things I'd like to do:

 - Use a clean "gl.h"

 - Define an extension for modifier volumes

 - Add support for point sprites

 - Optimise, add unit tests for correctness

# Compiling

GLdc uses CMake for its build system, it currently ships with two "backends":

 - kospvr - This is the hardware-accelerated Dreamcast backend

 - software - This is a stub software rasterizer used for testing testing and debugging

 

To compile a Dreamcast debug build, you'll want to do something like the following:

```

mkdir dcbuild

cd dcbuild

cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/Dreamcast.cmake -G "Unix Makefiles" ..

make

```

For a release build, replace the cmake line with with the following:

```

cmake -DCMAKE_TOOLCHAIN_FILE=../toolchains/Dreamcast.cmake -G "Unix Makefiles" -DCMAKE_BUILD_TYPE=Release ..

```

You will need KallistiOS compiled and configured (e.g. the KOS_BASE environment

variable must be set)

To compile for PC:

```

mkdir pcbuild

cd pcbuild

cmake -G "Unix Makefiles" ..

make

```

 

# Special Thanks!

 - Massive shout out to Hayden Kowalchuk for diagnosing and fixing a large number of bugs while porting GL Quake to the Dreamcast. Absolute hero!