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Platform/GFX/2012-August-20: Difference between revisions
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=Agenda= | =Agenda= | ||
* OMTC update (ajuma, nrc, Bas) | * OMTC update (ajuma, nrc, Bas) | ||
** Layer types are rendering through compositor API | |||
** Texturing still needs to go through TextureHost/TextureClient though | |||
** Once texturing is done we need to: | |||
*** Merge m-c to graphics and fix bitrot, use of Compositor API | |||
*** Mask layers need to be implemented in terms of effects on the Compositor | |||
*** Then we can start using the Compositor API on non-OpenGL backends, and porting OpenGL to Android and Linux (and Windows) | |||
*** Basic, D3D9, D3D10 | |||
**** Bas: Basic should not be a priority because it won't be a big win | |||
**** Possible to expand accelerated composition to more computers too | |||
**** Question for market insight: What kind of GPU do the "average" computer in emerging markets use? | |||
* Azure project update (nrc, kentuckyfriedtakahe) | * Azure project update (nrc, kentuckyfriedtakahe) | ||
* Multi-resolution tiles (BenWa) | ** Azure-Cairo canvas is now turned on everywhere but Linux | ||
** Perf of Azure-Cairo is being worked on, hopefully ready by next week | |||
*** Currently performance are what's holding it back being turned on by default on Linux | |||
*** We suspect that mostly we're going to have very low overhead, so we might be able to turn on Azure-Cairo for content very soon, at which point we can start removing Thebes code | |||
* Multi-resolution tiles (BenWa) {{bug|771219}} - Tile based progressive painting | |||
** Progress: https://dl.dropbox.com/u/10523664/output.webm | |||
** Can be interrupted at tile granularity | |||
** Can paint at low/current or both resolution at once and could be controlled by a heuristic | |||
** Has a stub for doing adding tile drawing priority but we need code to check the screen intersections. | |||
** Low res buffer isn't at a fix resolution yet. | |||
* SIGGRAPH recap (BenWa, gw280, Bas) | * SIGGRAPH recap (BenWa, gw280, Bas) | ||
** BenWa: | ** BenWa: | ||
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**** Texture max has to be at least 2048^2! | **** Texture max has to be at least 2048^2! | ||
**** PBOs! | **** PBOs! | ||
**** Texture compression | **** ~Texture compression | ||
**** Discard framebuffer | **** Discard framebuffer | ||
**** Debug capabilities to receive debugging messages during application development | **** Debug capabilities to receive debugging messages during application development | ||
**** Shader binary (startup perf) | **** Shader binary (startup perf) | ||
*** The PowerVR Insider SDK | *** The PowerVR Insider SDK | ||
*** | *** Qualcomm | ||
**** Do FBO work first in ONE step because rebind it causes expensive flushes on some GPUs. | **** Do FBO work first in ONE step because rebind it causes expensive flushes on some GPUs. | ||
**** Use minimum shader precision acceptable. Typecast to lower precision when you don't need it. | **** Use minimum shader precision acceptable. Typecast to lower precision when you don't need it. | ||
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**** Relaxing security for shaders that are safe (no dependent texture read). | **** Relaxing security for shaders that are safe (no dependent texture read). | ||
*** NV Path Rendering | *** NV Path Rendering | ||
* | **** If they write it. | ||
* | |||
** | |||
* shumway work week (joe) | * shumway work week (joe) | ||
** september 24-28, San Francisco | ** september 24-28, San Francisco | ||
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** https://intranet.mozilla.org/Layout_Graphics_-_Work_Week_-_November_2012 | ** https://intranet.mozilla.org/Layout_Graphics_-_Work_Week_-_November_2012 | ||
** do not book yet - it's only tentative, still has not been approved by finance. keep the week open though! | ** do not book yet - it's only tentative, still has not been approved by finance. keep the week open though! | ||
* Bas work week (toronto) | |||
** September 15-21 | |||
** He has already booked travel | |||