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Open graphics project
Open-source graphics hardware project
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February 2011
Open Graphics Project
Commercial?
Yes
Type of project
Open hardware
Website
wiki.opengraphics.org
at the
Wayback Machine
(archived June 9, 2010)
Open Graphics Development board artwork
The
Open Graphics Project
OGP
) was founded with the goal to design an
open-source hardware
open architecture
and standard for
graphics cards
, primarily targeting
free software
open-source
operating systems. The project created a reprogrammable development and prototyping board and had aimed to eventually produce a full-featured and competitive end-user graphics card.
OGD1
edit
OGD1 prototype – OGD1-256DDAV
The project's first product was a
PCI
graphics card dubbed OGD1, which used a
field-programmable gate array
(FPGA) chip. Although the card did not have the same level of performance or functionality as graphics cards on the market at the time, it was intended to be useful as a tool for prototyping the project's first
application-specific integrated circuit
(ASIC) board, as well as for other professionals needing programmable graphics cards or FPGA-based prototyping boards. It was also hoped that this prototype would attract enough interest to gain some profit and attract investors for the next card, since it was expected to cost around US$2,000,000 to start the production of a specialized ASIC design.
PCI Express
and/or
Mini-PCI
variations were planned to follow. The OGD1 began shipping in September 2010,
some six years after the project began and 3 years after the appearance of the first prototypes.
Full specifications will be published and open-source
device drivers
will be released. All
RTL
will be released. Source code to the device drivers and
BIOS
will be released under the
MIT
and
BSD licenses
. The RTL (in
Verilog
) used for the FPGA and the RTL used for the ASIC are planned to be released under the
GNU General Public License
(GPL).
It has 256
MiB
of DDR RAM, is passively cooled, and follows the
DDC
EDID
DPMS
and
VBE
VESA standards.
TV-out
is also planned.
Versioning schema
edit
Versioning schema for OGD1 will go like this:
{Root Number} – {Video Memory}{Video Output Interfaces}{Special Options e.g.: A1 OGA firmware installed}
Field
Example Value
Example Description
Root number
OGD1P-
OGD1 board with PCI Bus
Video memory
256
256 MiB
Video outputs, in order, skip any not installed
First interface
Dual-link DVI
Second interface
Dual-link DVI
Third interface
Analog video, 75 ohm, VGA compatible
Fourth interface
TV video
Special options, in alphanumeric order, each preceded by a dash
Factory firmware-RTL
A1
OGA1 Firmware
OGD1 components
edit
Open Graphics Development board component map
Main components of OGD1 graphics card (shown on the picture)
A)
DVI
transmitter pair A
B) DVI transmitter pair B
C) 330MHz triple 10-bit
DAC
(behind)
D) TV chip
E) 2x4 256 megabit
DDR SDRAM
(front, behind)
F)
Xilinx
3S4000
FPGA
(main chip)
G)
Lattice
XP10 FPGA (host interface)
H) SPI
PROM
Mibit
J) SPI PROM 16 Mibit
K) 3x 500 MHz DACs (optional)
L) 64-bit
PCI-X
edge connector
M)
DVI-I
connector A and connector B
N)
S-Video
connector
O) 100-pin expansion bus connector
Divisions/terms related to OGP
edit
Open Graphics Project (OGP)
The group of people developing OGA, its written documentation, and its products.
Open Graphics Architecture (OGA)
The trade name for open graphics architectures specified by the Open Graphics Project.
Open Graphics Development (OGD)
The initial FPGA-based experimentation board used as a test platform for TRV ASICs.
Traversal Technology (TRV)
The commercial name for the first ASIC products, based on the Open Graphics Architecture.
Open Graphics Card (OGC)
Graphics cards based on TRV chips.
Open Hardware Foundation (OHF)
A non-profit corporation whose charter is to promote the design and production of open-source and open-documentation hardware.
Current status
edit
The OGP project failed to gain the necessary funding to produce an ASIC version of its card. The project appears to have been discontinued in 2011.
See also
edit
Electronics portal
Free and open-source software portal
Graphics hardware and FOSS
Open-source hardware
Open system (computing)
RISC-V
References
edit
"OGD1's Now Available!"
. Archived from
the original
on 15 June 2017
. Retrieved
12 January
2017
"First Open Graphics board appears"
. The Inquirer. Archived from
the original
on 15 January 2007.
"OGD1 map guide"
. Open Graphics wiki. Archived from
the original
on 27 September 2007
. Retrieved
4 September
2006
External links
edit
The official Open Graphics wiki
archived at the
Wayback Machine
June 9, 2010
Jeremy Andrews (1 March 2006).
"Hardware: Open Graphics Development Board Pricing"
KernelTrap
. Retrieved
4 September
2006
Project VGA
– another free graphics core project, aiming at cheaper hardware
Manticore
– an older FPGA-based free graphics core implementation. As of 2009-05-04 no source is available.
The master thesis "
An FPGA-based 3D Graphics System
" illustrates very well the design decisions to make, while developing a FPGA-based 3D graphics core.
The master thesis "
A performance-driven SoC architecture for video synthesis
" gives a more complete and hands-on approach of some aspects.
Retrieved from "
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