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254 lines
7.6 KiB
Markdown
254 lines
7.6 KiB
Markdown
# GRRLIB
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[](https://github.com/GRRLIB/GRRLIB/actions)
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[](https://app.codacy.com/gh/GRRLIB/GRRLIB/dashboard?utm_source=gh&utm_medium=referral&utm_content=&utm_campaign=Badge_grade)
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[](https://gitter.im/GRRLIB/GRRLIB?utm_source=badge&utm_medium=badge&utm_campaign=pr-badge&utm_content=badge)
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## Table of Contents
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* [Introduction](#introduction)
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* ...What is it?
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* [Developing for the Wii](#developing-for-the-wii)
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* ...How do I even start?
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* [Downloading GRRLIB](#downloading-grrlib)
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* ...Where do I get it from?
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* [Installing GRRLIB](#installing-grrlib)
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* ...How do I get it to a useable state?
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* [Using GRRLIB](#using-grrlib)
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* ...What essentials do I need to know to get going?
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* [Upgrading to v4.4.0 From Previous Versions of GRRLIB](#upgrading-to-v440-from-previous-versions-of-grrlib)
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* ...I upgraded and now my programs won't compile properly!?
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* [Using GitHub](#using-github)
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* ...What is this Git thing that the L337 devs keep talking about?
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* [Credits](#credits)
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* ...Who do I thank for all this free stuff?
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* [Licence](#licence)
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* ...When you say "free" do you actually mean something else?
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## Introduction
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GRRLIB is a C/C++ 2D/3D graphics library for Wii application developers. It is
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essentially a wrapper which presents a friendly interface to the Nintendo GX
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core.
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GRRLIB is supplied as a standard C/C++ library (aka. archive)
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called 'libgrrlib'. Because GRRLIB processes JPEG and PNG images, it requires
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the installation of the 'libjpeg' and 'libpngu' libraries. 'libpngu', in turn,
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requires 'libpng'. GRRLIB has FileIO functions
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to allow real-time loading and saving of graphical data, and thus requires
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'libfat'. GRRLIB also has the possibility to use TrueType fonts, so
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'libfreetype' is also required.
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```text
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libgrrlib <- 2D/3D graphics library
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├── libfat <- File I/O
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├── libjpeg <- JPEG image processor
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├── libpngu <- Wrapper for libpng
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│ └── libpng <- PNG image processor
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└── libfreetype <- TrueType font processor
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```
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## Developing for the Wii
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Do not progress until you have installed and configured devkitPro. Guides are
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and assistance are available at <https://devkitpro.org/index.php>
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If you have just performed a clean (re)install on your Windows PC, be sure to
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reboot before you continue.
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## Downloading GRRLIB
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You are invited to use "the latest Git master version" of GRRLIB at all times.
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The Git repository is located at: <https://github.com/GRRLIB/GRRLIB>
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There is a simple guide to "Using GitHub" later in this document.
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This document will presume that you have downloaded "the latest Git master
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version" to a directory called C:\grr
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## Installing GRRLIB
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This guide is for Windows. If you are using Linux, I am going to presume you
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are smart enough to convert these instructions.
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```text
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GRRLIB is supplied as source code
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libpngu is supplied as source code
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libpng is supplied via devkitPro pacman (ppc-libpng)
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libfreetype is supplied via devkitPro pacman (ppc-freetype)
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libjpeg is supplied via devkitPro pacman (ppc-libjpeg-turbo)
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libfat is supplied via devkitPro pacman (libfat-ogc)
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```
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The easy way is to install GRRLIB and all the required libraries with a few
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commands:
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```bash
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c:
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cd \grr\GRRLIB
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pacman --sync --needed --noconfirm libfat-ogc ppc-libpng ppc-freetype ppc-libjpeg-turbo
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make clean all install
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```
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This process may take some time depending on the speed of your PC.
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If you used the method above the following steps are not required, GRRLIB is
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installed and you are ready to start developing Wii homebrew games.
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If you want, you could install the libfat, libpng,
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libfreetype and libjpeg with there dependencies in a single command:
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```bash
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pacman --sync --needed --noconfirm libfat-ogc ppc-libpng ppc-freetype ppc-libjpeg-turbo
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```
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Each library could also be installed individually:
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To install libpngu:
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```bash
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c:
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cd \grr\GRRLIB\lib\pngu
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make clean all install
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```
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To install libgrrlib for Wii:
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```bash
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c:
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cd \grr\GRRLIB\GRRLIB
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make clean all install
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```
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To install libgrrlib for GameCube:
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```bash
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c:
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cd \grr\GRRLIB\GRRLIB
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make PLATFORM=cube clean all install
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```
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## Using GRRLIB
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After everything is installed, simply put
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```c
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#include <grrlib.h>
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```
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at the top of your .c/.cpp file and use the functions as required
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You will need to add
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```make
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-lgrrlib -lpngu `$(PREFIX)pkg-config freetype2 libpng libjpeg --libs` -lfat
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```
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to the libs line in your makefile
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...Remember the order of the libraries is critical. You may (need to) insert
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other libraries in the middle of the list, you may need to add others to the
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start, or even the end - but do _not_ change the order of the libraries shown
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here.
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Also add $(PORTLIBS) to the LIBDIRS line in your makefile
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You do NOT need to place /anything/ in your application directory.
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If you would like to see a working example of this, you can look at the example
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found in: C:\grr\examples\template\source
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## Upgrading to v4.4.0 From Previous Versions of GRRLIB
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This version now uses the ported libraries for the Wii.
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To install them, use this command line:
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```bash
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pacman --sync --needed --noconfirm libfat-ogc ppc-libpng ppc-freetype ppc-libjpeg-turbo
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```
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You will need to add $(PORTLIBS) to the LIBDIRS line in your makefile.
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Previously it could have looked like this:
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```make
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LIBDIRS :=
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```
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Now it needs to be like this:
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```make
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LIBDIRS := $(PORTLIBS)
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```
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The FreeType library is now compiled with dependencies,
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so freetype2 must be added to pkg-config in your makefile.
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For example:
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```make
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LIBS := -lgrrlib -lpngu `$(PREFIX)pkg-config freetype2 libpng libjpeg --libs` -lfat
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```
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Since GRRLIB and libpngu are now installed into the porlibs folder, make sure you don't have any leftovers from previous installations.
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You will need to manually delete unneeded libraries in _devkitPro\libogc\lib\wii_ as well as include files in _devkitPro\libogc\include_
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## Using GitHub
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GitHub allows the developers to submit changes to the code in such a way that
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these changes can be easily monitored, quickly merged together with other
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changes. and (if necessary) reverted.
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It also allows the power-users to gain access to the latest (often "in-test")
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features.
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To obtain the "cutting edge" codebase go to <https://github.com/GRRLIB/GRRLIB/tree/master>
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1. Create a directory to hold the code (e.g. C:\grr)
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2. Click the _Download ZIP_ button if you don't have the proper tools installed on your PC or Clone the following URL <https://github.com/GRRLIB/GRRLIB.git>
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All official releases can be found here <https://github.com/GRRLIB/GRRLIB/releases>
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## Credits
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### Project Leader
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* NoNameNo
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### Documentation
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* Crayon
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* BlueChip
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### Lead Coder
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* NoNameNo
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### Support Coders
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* Crayon
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* Xane
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* DragonMinded
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* BlueChip
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* elisherer
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### Advisors
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* RedShade
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* Jespa
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## Licence
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GRRLIB is released under the [MIT Licence](LICENCE.md).
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If we had chosen the GPL licence you would be +forced+ (legally required) to release your source code.
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But in the spirit of "free as in FREE" we have left you with the +option+ to release your
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source code.
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We do +request+ that you tell others about us by naming our library (GRRLIB) in
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the credits of your game/application. And, if you +choose+ to do that, we
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encourage you to use our logo to achieve it; You can find our logo here:
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C:\grr\docs\grrlib_logo.png
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and here:
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<https://grrlib.github.io/GRRLIB/grrlib_logo.png>
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