Resource: LCA13 Name: OpenGL ES3 and You Date: 08-03-2013 Speaker: Tom Gall

1. ASIA 2013 (LCA13)
OpenGL ES3 and You
Tom Gall - tgall
tom_gall@linaro.org

2. www.linaro.org
ASIA 2013 (LCA13)
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Background
Open standard, free to access, free to implement, pay to certify
OpenGL ES, embedded version of Open GL
Includes Open GL SL ES
Khronos maintains standard

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Goals
Within OpenGL ES, WebGL, OpenVG, Renderscript where should "we"
be investing time?

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GLES3 Recent Events
Version 3 finalizedAug 2012
Hardware implementations
Binary driver implementations
Mesa implementation in gles3 branch

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Mesa Drivers
Soft pipe, swrast, llvmpipe - software rendering, all work on core
Intel ivy bridge HD4000, Sandy Bridge HD3000, Haswell, ValleyView, etc
AMD radeon
NVIDIA nouveau
Lima (Mali) GLES2
Freedreno (Adreno) GLES2

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Binary Drivers
Mali T-604 GLES3 submitted
PowerVR G6100 GLES3
Many more to come

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X86 activity
Mesa implementation
Piglit tests
Aug 2012, Intel first certification of Mesa 8.0.4 OpenGL ES 2 On Sandy
and Ivy
Feb 2012, Mesa 9.1 Ivy Bridge certified for OpenGL ES 3
Work was in open, "beat" everyone.

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Feature Comparison
Old spec 204 pages, new spec 347 pages
Very long delta list
• OpenGL Shading Language ES 3.00
• transform feedback 1 and 2 (with restrictions)
• uniform buffer objects including block arrays
• vertex array objects
• sampler objects
• sync objects and fences
• pixel buffer objects
• buffer subrange mapping
• .... Are you asleep yet?

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Who cares?
Game engines
Entertainment software
UI system engineers
What matters is the whole implementation....

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Waffle/Piglit
Waffle - an GL abstraction framework
Dynamically decide at run time, API, context, window env
Piglit - OpenGL, OpenGL ES, OpenCL, GLX test framework
6000 tests all total
GLSL tests quite methodical
API not so much

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Waffle/Piglit

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Waffle/Piglit
Piglit running on Android is a WIP
Piglit on Linux in LAVA is next

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Goals
While binary drivers are the rule, collaborate on the test. Piglit.
WebGL?
Invest a little effort in:
Mesa OpenGL ES 3, builds and runs
Piglit OpenGL ES 3 test cases run

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Discussion
Opinions?