- 1 Introduction
- 2 Multi-platform bounties
- 3 Windows bounties
- 4 Gtk bounties
- 5 Windows CE bounties
- 6 Android bounties
- 7 OS X bounties
- 8 Qt bounties
- 9 fpGUI bounties
- 10 Linux bounties
- 11 Closed bounties
- 11.1 FastReport to LazReport report porting
- 11.2 GTK2 clipping rect error
- 11.3 Small Fix for Linux x86_64 IDE
- 11.4 Carbon Components
- 11.5 Small Windows Bugs
- 11.6 Apache modules - €300
- 11.7 Making paszlib zipper Mac/Unix compatible
- 11.8 Make TListView "Virtual"
- 11.9 bug 15768
- 11.10 Tprocess CTRL+C or CTRL + Break support
- 11.11 Fuzzy Hash
- 11.12 Fix Gtk bug - $10
- 11.13 RTL for Symbian phones - $1000
- 11.14 Lazarus Widgetset for Android
- 11.15 Android OpenGL ES demo
Need a particular feature? Set a price here, giving a short description, your name and email address. Hopefully, one or more people will contact you and you can arrange the terms of this development work.
Currently, Lazarus depends on volunteers to implement everything on it. Recently Lazarus popularity has increased a lot, and many commercial projects are being developed with it. The idea behind the Bounties is not to substitute the current Mantis bug system, where work will continue normally. The idea is to provide a new development mechanism where commercial application developers can receive professional support and at the same time be able to contribute back to the community.
If there is no one interested in your bounty, it's probably because the price is too low. Also, try to keep all bounties above 50 dollars. Below that it usually won't be worth the time investigating the problem. Please also date your bounties. This way at some point we can weed out really old ones.
- Make Lazarus hello world work on PamOS 5 Garnet. $1000 Contact firstname.lastname@example.org
- Implement a new feature. Please make a budget Contact email@example.com
Windows Phone 8 FPC support
I need FPC to able to generate Windows Phone 8 apps. I investigated and the SDK for WP8 from Microsoft comes with a command line assembler Windows Phone 8 is ARM7 based, so it should just require porting the RTL, and make FPC generated valid asm code for the MS ARM assembler? I'll offer a bounty of US$350 for this job. If you are interested on this job please send me an email: relfos at gmail
External process automation
I'm really interested in solving the general case of automating a command line application (cross-platform) that has some level of prompting/user interaction. Full details on the lazarus forum
I'll offer a bounty of US$500 / £300 for solution that:
- allows invocation of an arbitrary command line application
- catches all textual output (stdout and stderr)
- catches or somehow detects applications raising prompts
- allows sending a response to prompts and continuing execution
- doesn't create a visible cli/xterm console window
- works on linux, mac and windows platforms (64 bit)
The ultimate test is that a Lazarus program can automate a command line tool such as ftp or git, including sudo prompts on linux - or even create a terminal/console app.
Contact mkmacdonagh at gmail
Offering $500 bounty for a GNU-Plot/Matlab like 2D and 3D graph/plotter that has the following properties
- IPC command controlled (Not Console). Will provide more info etc.
- Fully compatible with GNU Octave commands such as plot,plot3, loglog, semilogx, semilogy, mesh, contour, contourf, etc.
- GNU plot source code translation into Pascal/Lazarus is acceptable
- allows Mouse Controls (Zoom in/out, reset, drag, 3D rotate etc)
- allows adding text, arrows, legend, simple shapes with transparency
- allows exporting to BMP
- works on windows (32/64), linux (32/64) and mac.
- Can use Lazarus Charting component for 2D.
Contact m m a b _ at h o t m a i l dot c o m
ExtDesigner, ExtJS, ExtDirect Demo
Need the help of someone who is familiar with ExtJS to create a demo along this line that does the following:
1. Login session (users/passwords/emails will be stored in text file).
2. On successful login, show a form with 2 tabs: a). First tab displays user grid (username, password, email), delete record, edit record, add record. Changes will be made to user text file. Similarly, changes made to the user test file will be automatically updated on the grid. b). Second tab displays a checkbox, a textfield, a date/timefield, and a pair of radio buttons, with values taken from an .ini file. Users can edit the fields, submit changes and cancel changes. On submit changes, commit changes to .ini file. Similarly, changes made to the .ini file will be automatically updated on the tab.
3. Logout session.
Code should be commented for me (a novice) to understand. Frontend GUI should be created using ExtDesigner and you need to screen record to show how you create the GUI using ExtDesigner and link it to the backend FPC using ExtDirect.
Code will be open source and can be attributed to the author. Bounty: US$150. Pay by Paypal. Contact: joshualimming at gmail dot com
System wide hotkey
Hook keyboard on Linux/OSX US $20/Paypal Source would be donated to FreePascal as there is nothing there yet. Contact: alistair.3ns at gishpuppy dot com
Optimizations for FPC/Lazarus
Two bounties, totally $100 for speed optimizations for FPC/Lazarus are described on my web page http://www.sph.sc.edu/comd/rorden/mricron/bounty/. Martin Friebe won one of these (for changing the code, not the compiler) and donated the $50 to the Lazarus paypal account.
1.) If a path is added in the Compiler-Options of a project then add the path as a relative path instead of an absolute path. $20
2.) If in the MessageView the sentence "Can't find unit XYZ" is displayed, it should be possible to doubleclick onto the
word "XYZ" and this would open the "FindInFiles" dialog. $20 Solved by Mattias.
The GLScene Texture3D demo (Lazarus version at http://www.mricro.com/texture3d.zip) currently generates volume rendering. I want to encourage someone to add the ability to add surface shading. The picture at http://www.mricro.com/rendert.jpg shows a sample image with pure volume rendering (left), pure surface shading (middle) and a mixture. I would like to achieve this using the GPU. A compiled program with C++ source code and sample image is available at
To see the effect, download the 3D Texture Slicer and launch the SimpleSlicer.exe. At first the program displays a volume rendering, but press the 'm' key to switch the mode to surface shading. The book associated with this C++ code describes the implementation: Listing 5.6 for computing on-the-fly-gradients and Listing 5.1 for the Blinn-Phong shading. See Figure 5.5 for example output...
Bounty will be paid to the first person who can send me GPU-accelerated shading for the Texture3D demo, or my open source MRIcroGL (http://www.mricro.com/mricrogl). Contact rorden_AT_gatech(dot)edu $300
I am looking for a GLScene implementation that can reduce the triangle count of a GLFreeForm mesh. In other words, I want to remove the vertices/triangles that do not substantially improve the image. Here are two source plus executatable implementations for C++, but it is not clear how to implement this elegantly with Pascal
I think a solution would be generally useful to many GLScene users, and I would personally offer a $50 USD bounty to the first person who can provide me with a solution. The GLScene MeshSource demo might be a good example, as it starts with a cube composed of 300 triangles (whereas it could be decimated to 12 losslessly). Contact rorden_AT_gatech(dot)edu
mrmath library for fpc
mrmath is a matrix library originally developed for Delphi. This library contains numerous assembler optimized base matrix functions. Actually it works for Windows 32/64 (and MacOSX - I did not test it on MacOSX). I'll offer a bounty of 150 euro in order to get it working on Linux 32/64 too and to be fully compatible with fpc. mrmath on github:  mrmath website:  
Contact: andrea dot mauri dot 75 at gmail dot com
Windows 8 64bit Pro (Full/Upgrade)
I'm looking to better Lazarus on Windows 8 (64bit). I realize it just came out and it may be not worth the time to run (even in a virtual-box).
I'm offering a few serious Lazarus core developers a copy of windows 8 so they can have it to run and test and improve Lazarus.
The only thing I want is
1: fcl-db components present (currently missing postgresql). 2: Install path with space like "Program Files" and be able to Build Projects. If the problem is out of scope - clearly identify problem areas and their external projects.
Email me for acceptance, I will buy and drop-ship you the cd. You retain license for your time. Win8 Pro Upgrade or Win8 Pro Full.
Andrew Brunner (firstname.lastname@example.org)
FCL-DB components are present in current Lazarus trunk
On r43334 (and some time before that), PostgreSQL components are available for 64 bit Windows, so no need to look into that. Haven't checked Laz 1.2RC1; it might well be there as well. --BigChimp 08:23, 17 November 2013 (CET)
Fixing bug #7182 Problems using LCL in DLL - $100
$100 for fixing bug #7182 (http://bugs.freepascal.org/view.php?id=7182), Problems using LCL in DLL. Contact oleg_3630 at mail.ru.
Reparent Forms (100€)
Related to the bounty above, I'd like to spend another 100€ (see bounty above) for anyone who manages to reparent a form with a specified owner (data module) to a given parent window handle (HWnd). In Delphi this is pretty simple (ParentWindow := NewParentWindowHandle), but it is not working properly in Lazarus. The form should be reparented completely (incl. accepting keyboard/mouse input and such). The solution should work on several platforms (i.e. no direct call to the WinAPI or such, this should be handled by the LCL) The code will be used for my open source project "Delphi ASIO & VST Packages" to make them usable with Lazarus (planned for version 1.5).
Fix GLScene volume rendering on Linux
- $100.00 US for anyone who can get GLScene's volume rendering working on Linux. I have adapted Jürgen Abel's Texture3D glscene demo (http://glscene.sourceforge.net/wikka/UserDemos/) to compile under either Delphi or Lazarus. My new code is here www.mricro.com/texture3d.zip. The Lazarus code (0.9.26.2, using SVN snapshot of GLScene) works fine under Windows and OSX, but when I compile it with Linux the volume is always rendered as an opaque white cube. I get the same results with Fedora10 using ATI 4850 and Ubuntu 9.04 using a NVidia GTX9800. Both computers are set up with the recommended proprietary. Contact email@example.com
Windows CE bounties
OS X bounties
Mac OS X bounties
These are examples of successfully concluded bounties.
FastReport to LazReport report porting
Jesus Reyes earned u$ 300 developing a Lazarus unit to translate FastReport reports to LazReport. The unit has been added to the Lazarus repository.
GTK2 clipping rect error
Paul Ishenin earned $50 for fixing a bug with GTK2 (Clipping rect of newly created bitmap was invalid). He then donated these funds to the Lazarus PayPal account. http://bugs.freepascal.org/view.php?id=12026
Small Fix for Linux x86_64 IDE
- Vincent earned $50 US for discovering why Linux x86_64 caused the IDE to report an Access Violation when opening the MRIcron project. This bug was also reported on Mantis (http://www.freepascal.org/mantis/view.php?id=9216).
- Tombo earned $600 US for developing new Carbon components including TSpinEdit, TFloatSpinEdit, TSpeedButton
- Tombo earned $50.00 US for extending LazRGBGraphics to support the QT widgetset - offered by rorden at gwm.sc.edu
Small Windows Bugs
- Jesús earned $40 US for fixing a bug where copying images with the edit/copy caused all pixels with the color shown in the bottom-left corner to appear black (http://www.sph.sc.edu/comd/rorden/mricron/bounty/)
Apache modules - €300
- Apache modules header translation and basic example. Awarded to Sekelsenmat.
Making paszlib zipper Mac/Unix compatible
Tom G. earned 100 EUR for making the paszlib zipper Mac/Unix compatible. The zipper in paszlib(TUnZipper.UnzipAllFiles) had no support for symbolic links, did not set executable bits of unzipped executable files, did not support directories, and raised a CRC exception. Thanks Tom for fixing this! - offered by Grau GbR (www.grauonline.de)
Make TListView "Virtual"
Dmitry B. (aka skalogryz) earned 200 EUR for making the Win32 and Carbon TListView implementations "virtual" - before that, TListView was not 100% Delphi compatible - the ability to set OwnerData=true together with an OnData Event-Handler was missing (http://bugs.freepascal.org/view.php?id=7749). Thanks Dmitry for fixing this! - offered by Grau GbR (www.grauonline.de)
Paul Ishenin earned $300 for fixing an access violation produced when raising an exception (any exception) in a safecall method for the x64 compiler (bug 15768). Bounty was offered by Dmitry Streblechenko.
Tprocess CTRL+C or CTRL + Break support
Felipe Monteiro de Carvalho earned pay $100 (USD) to implement a solution for sending an interrupt signal to a process started using TProcess (CTRL+C or CTRL+Break). Offered by mmab_ @ h o t m a i l . c o m
Jeppe Johansen earned $400 for porting and optimising ssdeep in freepascal, offered by Marc Pertron (cmarcp (at) g mail(dot)com
Fix Gtk bug - $10
This bug was marked closed in 2009.
RTL for Symbian phones - $1000
Create an RTL for Symbian phones (FPC for ARM already exists).
- Include a very simple GUI app (like this one for PocketPC).
- Needed for Symbian UIQ 2 and 3 at least.
- Bounty $1000, open for negotiation if Series 60/80/90 supported.
- Contact bounty (at) ccrdu.de.
Resolution: The work was too large, the platform changed too fast and now the entire Symbian is deprecated, so the work was not successful.
Lazarus Widgetset for Android
Lazarus Widgetset that supports Android
Contact: Lazarus forum (indianajones)
Resolution: Initial work successfully concluded. Further work underway.
Android OpenGL ES demo
I would like a OpenGL ES demo (just a spinning triangle would do), written in Free Pascal for Android (without Lazarus).US $100.00/Paypal Contact: admin _at_ sushiquest .dot. net
Resolution: Bounty claimed by Felipe