Platform/Games: Difference between revisions

From MozillaWiki
Jump to navigation Jump to search
 
(44 intermediate revisions by 4 users not shown)
Line 1: Line 1:
=Platform Games=
=Platform Games=


The platform games initiative is made up of a core team whose works is primarily focused on making the Gecko platform, Firefox Desktop, Firefox OS, and Firefox for Android the best it can possibly be at running games. The core team is ready to help coordinate with other groups in the community who are working on features or optimization that are important to game developers and provide assistance when needed. Platform development continues to focus on games and we hope you are as excited as we are to make HTML5 rock on the web!
The platform games initiative is made up of a core team whose work is primarily focused on making the Gecko platform, Firefox Desktop, and Firefox for Android the best it can possibly be at running games. The core team is ready to help coordinate with other groups in the community who are working on features or optimization that are important to game developers and provide assistance when needed. Platform development continues to focus on games and we hope you are as excited as we are to make HTML5 rock on the web!


=Mozilla Games Technology Roadmap=
==Games Platform High-Level Status==
There are two levels to this document. The first is the Roadmap section which contains areas that are currently in development and we have a reasonable level of confidence we can address in the next year. For the topics that are listed in the Under Consideration section, we are actively investigating the best way to address them.


==Roadmap==
Please visit this [https://wiki.mozilla.org/Platform/Games/StatusUpdate page] to view the high-level status of the web games program.
 
==Mozilla Games Technology MVP Requirements==


===Allow developers to better exploit hardware parallelism===
===Allow developers to better exploit hardware parallelism===
Developers are struggling to get multi-threaded games running efficiently on the Web:<br>
Developers are struggling to get multi-threaded games running efficiently on the Web:<br>
*Standardize, implement and ship SharedArrayBuffer [1,2]<br>
*Standardize, implement and ship SharedArrayBuffer [https://blog.mozilla.org/javascript/2015/02/26/the-path-to-parallel-javascript/ 1],[https://bugzilla.mozilla.org/show_bug.cgi?id=1054841 2]<br>
*Add pthreads support to Emscripten [1,2]<br>
*DONE - Add pthreads support to Emscripten [https://groups.google.com/forum/#!msg/emscripten-discuss/gQQRjajQ6iY/DcYQpQyPQmIJ 1],[https://github.com/kripken/emscripten/blob/incoming/site/source/docs/porting/pthreads.rst 2]<br>
*Expose performance-sensitive Web APIs to Web Workers: WebGL, WebSockets, IndexedDB, WebAudio, WebRTC, WebVR<br>
*Expose performance-sensitive Web APIs to Web Workers: [https://bugzilla.mozilla.org/show_bug.cgi?id=709490 WebGL], [https://bugzilla.mozilla.org/show_bug.cgi?id=1121406 WebSockets], [https://bugzilla.mozilla.org/show_bug.cgi?id=701634 IndexedDB], [https://bugzilla.mozilla.org/show_bug.cgi?id=1062849 WebAudio], [https://bugzilla.mozilla.org/show_bug.cgi?id=922363 WebRTC], [https://bugzilla.mozilla.org/show_bug.cgi?id=1036600 WebVR]<br>
*Share compiled code (asm.js and WebAssembly) between workers [1] <br>
*Share compiled code (asm.js and WebAssembly) between workers [https://bugzilla.mozilla.org/show_bug.cgi?id=1168981 1] <br>
*Developers want to take advantage of SIMD hardware to optimize their code:<br>
*Developers want to take advantage of SIMD hardware to optimize their code:<br>
**Standardize, implement and ship SIMD.js [1,2].<br>
**Standardize, implement and ship SIMD.js [https://hacks.mozilla.org/2014/10/introducing-simd-js/ 1],[https://bugzilla.mozilla.org/show_bug.cgi?id=894105 2].<br>
**Include SIMD in WebAssembly [1].<br>
**Include SIMD in WebAssembly [https://github.com/WebAssembly/design/blob/master/PostMVP.md#fixed-width-simd 1],[https://bugzilla.mozilla.org/show_bug.cgi?id=1188259 2].<br>
**Add SIMD support to Emscripten [1].
**DONE - Add SIMD support to Emscripten [https://github.com/kripken/emscripten/labels/SIMD 1].
===Improve cold load time of large compiled codebases.===
 
<bugzilla>
{
    "bug_id":"1054841,709490,1121406,701634,1062849,922363,1036600,894105",
    "include_fields":"id, summary, status, component, assigned_to, target_milestone",
    "order": "bug_status"
}
</bugzilla>
===Improve cold load time of large compiled codebases===
Developers want to see reduced download, compilation and startup time for multi-million line compiled codebases.
Developers want to see reduced download, compilation and startup time for multi-million line compiled codebases.
*WebAssembly will provide significant download size reductions (even before native support, through the polyfill) [1].
*WebAssembly will provide significant download size reductions (even before native support, through the polyfill) [https://github.com/WebAssembly/design/blob/master/FAQ.md#can-the-polyfill-really-be-efficient 1].
*Natively decoding WebAssembly will be significantly faster than parsing JavaScript/asm.js [1].
*Natively decoding WebAssembly will be significantly faster than parsing JavaScript/asm.js [https://github.com/WebAssembly/design/blob/master/BinaryEncoding.md#why-a-binary-encoding-instead-of-a-text-only-representation 1].
*Add a fast WebAssembly/asm.js compiler that allows an app to start quickly while a fully-optimizing compilation proceeds in a background thread [1].
*Add a fast WebAssembly/asm.js compiler that allows an app to start quickly while a fully-optimizing compilation proceeds in a background thread [https://bugzilla.mozilla.org/show_bug.cgi?id=1232205 1].
*Off-main-thread, streaming parsing/compilation [1].
*Off-main-thread, streaming parsing/compilation [https://bugzilla.mozilla.org/show_bug.cgi?id=1154987 1].
*Developers want to avoid depending on HTTP Content-Encoding:gzip for generic compression.
*Developers want to avoid depending on HTTP Content-Encoding:gzip for generic compression.
**Add Emscripten support to perform decompression in asm.js / WebAssembly while downloading (allowing more aggressive algorithms than gzip).
**Add Emscripten support to perform decompression in asm.js / WebAssembly while downloading (allowing more aggressive algorithms than gzip).
===Improve browser storage capabilities.===
 
*Developers seeking to avoid the permission prompt associated with persistent storage hit limitations of temporary storage as currently implemented in browsers.
<bugzilla>
*Improve temporary quota limits to take into account factors like frecency.
{
*Provide more information on quota usage and allowance [1].
    "f1": "blocked",
*Propose, standardize and implement finer-granularity units of evictable storage [1].
    "o1": "anywords",
*Allow cross-origin storage usage [1].
    "v1": "1188259",
    "resolution": "---",
 
    "include_fields":"id, summary, status, component, assigned_to, target_milestone",
    "order": "bug_status"
}
</bugzilla>
===Improve browser storage capabilities===
*Developers seeking to avoid the [https://storage.spec.whatwg.org/#dom-storagemanager-requestpersistent permission prompt] associated with persistent storage hit limitations of temporary storage as currently implemented in browsers.
*Improve temporary quota limits to take into account factors like [https://en.wikipedia.org/wiki/Frecency frecency].
*Provide more information on quota usage and allowance [https://storage.spec.whatwg.org/#dom-storagemanager-estimate 1].
*Propose, standardize and implement finer-granularity units of evictable storage [https://storage.spec.whatwg.org/#boxes 1].
*Allow cross-origin storage usage [https://bugzilla.mozilla.org/show_bug.cgi?id=1147821 1].
*Developers that need persistent storage guarantees hit limitations of persistent storage as currently implemented in browsers.
*Developers that need persistent storage guarantees hit limitations of persistent storage as currently implemented in browsers.
**Standardize persistent storage so that other browsers implement [1].
**Standardize persistent storage so that other browsers implement [https://storage.spec.whatwg.org/ 1].
**Reduce UI friction associated with the persistent permission prompt [1].
**Reduce UI friction associated with the persistent permission prompt [http://people.mozilla.org/~mverdi/projects/fullscreen/ 1].
**Improve storage management/eviction UI for browser users.
**Improve storage management/eviction UI for browser users.
===Improve browser graphics capabilities.===
 
*Ship WebGL2 [1].
<bugzilla>
*Standardize and implement streaming WebGL canvas via WebRTC [1,2].
{
    "bug_id":"933398,1202067,1202072,1182987,1147821,1212882",
    "include_fields":"id, summary, status, component, assigned_to, target_milestone",
    "order": "bug_status"
}
</bugzilla>
===Improve browser graphics capabilities===
*Ship WebGL2 [https://bugzilla.mozilla.org/show_bug.cgi?id=889977 1].
*Standardize and implement streaming WebGL canvas via WebRTC [https://w3c.github.io/mediacapture-fromelement/ 1],[https://bugzilla.mozilla.org/show_bug.cgi?id=1161913 2].
*Run WebGL on discrete hardware for systems with integrated+discrete (e.g. nVidia Optimus).
*Run WebGL on discrete hardware for systems with integrated+discrete (e.g. nVidia Optimus).
<bugzilla>
{
    "bug_id":"1281250,1161913,1271478,1136734,1169000,1184283,863316",
    "include_fields":"id, summary, status, component, assigned_to, target_milestone",
    "order": "bug_status"
}
</bugzilla>
===Allow developers to better avoid 32-bit browser Out-of-Memory conditions.===
===Allow developers to better avoid 32-bit browser Out-of-Memory conditions.===
*Ship 64-bit Firefox on 64-bit Windows.
*Ship 64-bit Firefox on 64-bit Windows.
*Avoid Emscripten in-memory Virtual File System for asset storage by leveraging pthreads and FileReaderSync to provide synchronous file I/O in workers.
*Avoid Emscripten in-memory Virtual File System for asset storage by leveraging pthreads and [https://developer.mozilla.org/en-US/docs/Web/API/FileReaderSync FileReaderSync] to provide synchronous file I/O in workers.
===Continue investment in performance across the platform.===
 
*Significantly optimize WebAudio performance [1].
===Continue investment in performance across the platform===
*Reduce WebGL shader compile times [1,2].
*Significantly optimize WebAudio performance [https://bugzilla.mozilla.org/show_bug.cgi?id=webaudioperf 1].
*Reduce latency and jitter in the browser’s rendering pipeline [1,2,3,4].
*Reduce WebGL shader compile times [https://bugzilla.mozilla.org/show_bug.cgi?id=918941 1],[https://bugzilla.mozilla.org/show_bug.cgi?id=863316 2].
*Reduce latency and jitter in the browser’s rendering pipeline [https://bugzilla.mozilla.org/show_bug.cgi?id=1071275 1],[https://bugzilla.mozilla.org/show_bug.cgi?id=1136734 2],[https://bugzilla.mozilla.org/show_bug.cgi?id=1169000 3],[https://bugzilla.mozilla.org/show_bug.cgi?id=1057530 4].
*Continue investments in the performance of JS, DOM, WebGL, WebRTC, codec, layout, rendering, compositing, animation, etc.
*Continue investments in the performance of JS, DOM, WebGL, WebRTC, codec, layout, rendering, compositing, animation, etc.
===Continue investment in Emscripten.===
 
<bugzilla>
{
    "bug_id":"1169293,918941,863316,1071275,1057530,1136734,1169000",
    "include_fields":"id, summary, status, component, assigned_to, target_milestone",
    "order": "bug_status"
}
</bugzilla>
===Continue investment in Emscripten===
*Add support for pthreads, SIMD, and WebAssembly, as mentioned above.
*Add support for pthreads, SIMD, and WebAssembly, as mentioned above.
*Further improve compilation speed.
*Further improve compilation speed.
===Continue investment in Firefox developer tooling to better support game developers.===
*Improve Web Worker support [1].
*Allow developers to break on various asm.js/WebAssembly error conditions [1].


== Under Consideration==  
===Continue investment in Firefox developer tooling to better support game developers===
*Improve Web Worker support [https://bugzilla.mozilla.org/show_bug.cgi?id=1003097 1].
*Allow developers to break on various asm.js/WebAssembly error conditions [https://bugzilla.mozilla.org/show_bug.cgi?id=1088655 1].
 
<bugzilla>
{
    "bug_id":"1003097,1088655,1008453,1241485,912562",
    "include_fields":"id, summary, status, component, assigned_to, target_milestone",
    "order": "bug_status"
}
</bugzilla>
 
===Continue implementation of Service Workers to support offline===
*Ship Service Workers and dependent features [https://bugzilla.mozilla.org/show_bug.cgi?id=903441 1].
 
<bugzilla>
{
    "f1": "blocked",
    "o1": "anywords",
    "v1": "903441",
 
    "resolution": "---",
    "include_fields":"id, summary, status, component, assigned_to, target_milestone",
    "order": "bug_status"
}
</bugzilla>
 
== Under Consideration==
*Developers are having trouble identifying how many Web Workers they should create to distribute their workload.  Benchmarking methods often prove unreliable.
*Developers are having trouble identifying how many Web Workers they should create to distribute their workload.  Benchmarking methods often prove unreliable.
*Developers are hitting the 20-per-origin limit on web workers in Firefox and are requesting a much higher limit.
*Developers are hitting the 20-per-origin limit on web workers in Firefox and are requesting a much higher limit.
*Leverage multi-process browser architecture to guarantee a fresh address space for games with large contiguous heaps allocated early in process startup.
*Leverage multi-process browser architecture to guarantee a fresh address space for games with large contiguous heaps allocated early in process startup.
*Investigate Out-of-Memory error reporting mechanism to send safe/sanitized triage information back to Web app developers.
*Investigate Out-of-Memory error reporting mechanism to send safe/sanitized triage information back to Web app developers.
*Collaborate on new standards to improve IME capabilities [1,2].
*Collaborate on new standards to improve IME capabilities [http://www.w3.org/TR/ime-api/1],[https://github.com/w3c/editing 2].
*Add hardware cursor API [1].
*Add hardware cursor API [https://bugzilla.mozilla.org/show_bug.cgi?id=1136675 1].
*Improve Gamepad API [1].
*Improve Gamepad API [https://bugzilla.mozilla.org/show_bug.cgi?id=855364 1].
*Add Pointer Clipping extension to Pointer Lock API [1].
*Add Pointer Clipping extension to Pointer Lock API [https://www.w3.org/wiki/Webapps/PointerLockFeatures 1].
*Add Emscripten tooling for memory use/leak debugging.
*Add Emscripten tooling for memory use/leak debugging.
*Standardize (as part of WebAssembly or more generally) a more scalable form of source maps suitable for large compiled codes.
*Standardize (as part of WebAssembly or more generally) a more scalable form of source maps suitable for large compiled codes.


==Related Projects==
==Related Projects==
Line 77: Line 148:
* [https://wiki.mozilla.org/HTML5_Games/BananaBread#Milestone_Two BananaBread Multi-player (using WebRTC)]
* [https://wiki.mozilla.org/HTML5_Games/BananaBread#Milestone_Two BananaBread Multi-player (using WebRTC)]


===Related Projects===
===Helpful Links===
*[https://github.com/dherman/asm.js ASM.js]
*[https://github.com/dherman/asm.js ASM.js]
*[http://www.arewefastyet.com/#machine=11&view=breakdown&suite=asmjs-apps Performance Tracking]
*[http://www.arewefastyet.com/#machine=11&view=breakdown&suite=asmjs-apps Performance Tracking]
Line 97: Line 168:
* [http://bit.ly/UuUlyf P2] [games:p2]
* [http://bit.ly/UuUlyf P2] [games:p2]
* [http://bit.ly/QdDOQE P3] [games:p3]
* [http://bit.ly/QdDOQE P3] [games:p3]
====Release Targets====
* [https://bugzilla.mozilla.org/buglist.cgi?type0-1-0=substring&field0-1-0=blocked&type0-1-3=substring&field0-0-0=target_milestone&value0-1-3=games%3Ap3&value0-1-0=710398&value0-1-2=games%3Ap2&type0-0-0=equals&field0-1-3=status_whiteboard&value0-0-0=mozilla20&type0-1-2=substring&type0-1-1=substring&field0-1-2=status_whiteboard&query_format=advanced&value0-1-1=games%3Ap1&field0-1-1=status_whiteboard&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&list_id=6613203 Bugs Landed in Mozilla 20]
* [https://bugzilla.mozilla.org/buglist.cgi?o5=substring&f10=CP&f1=OP&v6=games&o7=substring&list_id=6540204&f0=OP&f8=status_whiteboard&v11=games&o11=substring&o2=equals&o6=substring&f9=CP&f4=OP&v5=710398&query_format=advanced&j1=OR&f3=CP&f2=target_milestone&f11=status_whiteboard&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&j4=OR&f5=blocked&f6=status_whiteboard&v2=mozilla21&f7=status_whiteboard&o8=substring Bugs Landed in Mozilla 21]
* [https://bugzilla.mozilla.org/buglist.cgi?o5=substring&f10=CP&f1=OP&v6=games&o7=substring&list_id=6540216&f0=OP&f8=status_whiteboard&v11=games&o11=substring&o2=equals&o6=substring&f9=CP&f4=OP&v5=710398&query_format=advanced&j1=OR&f3=CP&f2=target_milestone&f11=status_whiteboard&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&j4=OR&f5=blocked&f6=status_whiteboard&v2=mozilla22&f7=status_whiteboard&o8=substring Bugs Landed in Mozilla 22]
* [https://bugzilla.mozilla.org/buglist.cgi?f10=CP&o5=substring&f1=OP&o7=substring&v6=games&list_id=6540233&f8=status_whiteboard&f0=OP&o6=substring&o2=equals&f9=CP&f4=OP&v5=710398&query_format=advanced&j1=OR&f3=CP&f2=target_milestone&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&j4=OR&f5=blocked&f6=status_whiteboard&v2=mozilla23&o8=substring Bugs Landed in Mozilla 23]
* [https://bugzilla.mozilla.org/buglist.cgi?f10=CP&o5=substring&f1=OP&o7=substring&v6=games&list_id=6540233&f8=status_whiteboard&f0=OP&o6=substring&o2=equals&f9=CP&f4=OP&v5=710398&query_format=advanced&j1=OR&f3=CP&f2=target_milestone&bug_status=RESOLVED&bug_status=VERIFIED&bug_status=CLOSED&j4=OR&f5=blocked&f6=status_whiteboard&v2=mozilla24&o8=substring Bugs Landed in Mozilla 24]


==Communication==
==Communication==
Line 109: Line 173:
{| class="wikitable fullwidth-table"
{| class="wikitable fullwidth-table"
  | Project Team Meeting
  | Project Team Meeting
|| Wednesdays at 10:00 AM (PST)/1:00 PM (EST) for 60 mins
|| Thursdays at 9:00 AM Pacific for 60 mins
* Vidyo Room:  Games's Vidyo Room
* Vidyo Room:  Games's Vidyo Room
* Invitation: Contact elancaster@mozilla.com (:elan) to get added to the meeting invite list.
* Invitation: Contact avaughn@mozilla.com (:avaughn) to get added to the meeting invite list.
* Meeting Notes: [https://games.etherpad.mozilla.org/55 Meeting Notes Etherpad]
|-
|-
| IRC
| IRC
||  
||  
Line 123: Line 186:


'''Games Platform & Research'''  
'''Games Platform & Research'''  
* Vladimir Vukicevic - <vladimir@mozilla.com>  
* Andre Vrignaud - <avrignaud@mozilla.com>
* Martin Best - <mbest@mozill.com>
* Martin Best - <mbest@mozilla.com>
* Alan Kligman - <akligman@mozilla.com>  
* Alon Zakai - <azakai@mozilla.com>  
* Alon Zakai - <azakai@mozilla.com>  
* Jeffrey Gilbert - <jgilbert@mozilla.com>  
* Jeffrey Gilbert - <jgilbert@mozilla.com>  
* Jukka Jylänki - <jjylanki@mozilla.com>  
* Jukka Jylänki - <jjylanki@mozilla.com>  
* Luke Wagner" <lwagner@mozilla.com>  
* Luke Wagner - <lwagner@mozilla.com>  
* Marco Mucci - <mmucci@mozilla.com>  
* Naveed Ihsanullah - <nihsanullah@mozilla.com>  
* Milan Sreckovic - <msreckovic@mozilla.com>  
* Milan Sreckovic - <msreckovic@mozilla.com>  
* Naveed Ihsanullah - <nihsanullah@mozilla.com>  
* Vladimir Vukicevic - <vladimir@mozilla.com>  
* Maire Reavy - <mreavy@mozilla.com>  
* Maire Reavy - <mreavy@mozilla.com>  
* Paul Adenot - <padenot@mozilla.com>
* Ted Mielczarek - <ted@mozilla.com>
* Kannan Vijayan - <kvijayan@mozilla.com>
* Peter Chang - <pchang@mozilla.com>  
* Peter Chang - <pchang@mozilla.com>  
'''Games Documentation'''
* Christopher Mills - <cmills@mozilla.com>
* Eric Shepherd - <eshepherd@mozilla.com>
'''Games Partner Support'''
* Bill Walker - <bwalker@mozilla.com>
* Harald Kirschner - <hkirschner@mozilla.com>
* Louis Stowasser - <lstowasser@mozilla.com>
* Nick Desaulniers - <nick@mozilla.com>
'''Games Public Relationship Team'''
* Paul Jarratt - <pjarratt@mozilla.com>
'''Games QA'''
* Anthony Hughes - <ahughes@mozilla.com>
* Marc Schifer - <mschifer@mozilla.com>
'''To Be Kept Informed'''
* Chloe Varelidi - <chloe@mozillafoundation.org>
* Dave Herman - <dherman@mozilla.com>
* Sean Stangl - <sstangl@mozilla.com>
* Jeff Muizelaar - <jmuizelaar@mozilla.com>
* Benoit Jacob - <bjacob@mozilla.com>


==References==
==References==

Latest revision as of 22:00, 27 October 2016

Platform Games

The platform games initiative is made up of a core team whose work is primarily focused on making the Gecko platform, Firefox Desktop, and Firefox for Android the best it can possibly be at running games. The core team is ready to help coordinate with other groups in the community who are working on features or optimization that are important to game developers and provide assistance when needed. Platform development continues to focus on games and we hope you are as excited as we are to make HTML5 rock on the web!

Games Platform High-Level Status

Please visit this page to view the high-level status of the web games program.

Mozilla Games Technology MVP Requirements

Allow developers to better exploit hardware parallelism

Developers are struggling to get multi-threaded games running efficiently on the Web:

  • Standardize, implement and ship SharedArrayBuffer 1,2
  • DONE - Add pthreads support to Emscripten 1,2
  • Expose performance-sensitive Web APIs to Web Workers: WebGL, WebSockets, IndexedDB, WebAudio, WebRTC, WebVR
  • Share compiled code (asm.js and WebAssembly) between workers 1
  • Developers want to take advantage of SIMD hardware to optimize their code:
    • Standardize, implement and ship SIMD.js 1,2.
    • Include SIMD in WebAssembly 1,2.
    • DONE - Add SIMD support to Emscripten 1.
Full Query
ID Summary Status Component Assigned to Target milestone
922363 Add support for WebRTC (DataChannels) on WebWorkers (SharedWorkers and ServiceWorkers) NEW WebRTC: Networking ---
1054841 [meta] Shared memory for web workers NEW JavaScript Engine mozilla55
701634 IndexedDB: Support database access from worker threads RESOLVED Storage: IndexedDB Ben Turner (not reading bugmail, use the needinfo flag!) mozilla37
709490 Run WebGL on Web Worker with commit() RESOLVED Graphics Morris Tseng [:mtseng] [:Morris] (Inactive) FxOS-S8 (02Oct)
894105 Add SIMD support for JavaScript RESOLVED JavaScript Engine ---
1036600 Add VR rendering and sensing support to platform RESOLVED DOM: Core & HTML Vladimir Vukicevic [:vlad] [:vladv] (needinfo me, slow to respond) ---
1062849 Implement AudioWorklets for Web Audio API RESOLVED Web Audio Karl Tomlinson (:karlt) mozilla77
1121406 Enable WebSocket-in-Workers by default in release builds RESOLVED DOM: Core & HTML Andrea Marchesini [:baku] mozilla38

8 Total; 2 Open (25%); 6 Resolved (75%); 0 Verified (0%);

Improve cold load time of large compiled codebases

Developers want to see reduced download, compilation and startup time for multi-million line compiled codebases.

  • WebAssembly will provide significant download size reductions (even before native support, through the polyfill) 1.
  • Natively decoding WebAssembly will be significantly faster than parsing JavaScript/asm.js 1.
  • Add a fast WebAssembly/asm.js compiler that allows an app to start quickly while a fully-optimizing compilation proceeds in a background thread 1.
  • Off-main-thread, streaming parsing/compilation 1.
  • Developers want to avoid depending on HTTP Content-Encoding:gzip for generic compression.
    • Add Emscripten support to perform decompression in asm.js / WebAssembly while downloading (allowing more aggressive algorithms than gzip).
Full Query
ID Summary Status Component Assigned to Target milestone
1232009 [meta] WebAssembly Debugging NEW General ---
1308157 [meta] Wasm optimizations to explore NEW JavaScript: WebAssembly ---
1424537 Web assembly linker errors don't appear when instantiated from web workers NEW Console ---
1920594 Broken frame pointer unwinding in wasm "builtin thunks" on aarch64 NEW JavaScript: WebAssembly ---

4 Total; 4 Open (100%); 0 Resolved (0%); 0 Verified (0%);

Improve browser storage capabilities

  • Developers seeking to avoid the permission prompt associated with persistent storage hit limitations of temporary storage as currently implemented in browsers.
  • Improve temporary quota limits to take into account factors like frecency.
  • Provide more information on quota usage and allowance 1.
  • Propose, standardize and implement finer-granularity units of evictable storage 1.
  • Allow cross-origin storage usage 1.
  • Developers that need persistent storage guarantees hit limitations of persistent storage as currently implemented in browsers.
    • Standardize persistent storage so that other browsers implement 1.
    • Reduce UI friction associated with the persistent permission prompt 1.
    • Improve storage management/eviction UI for browser users.
Full Query
ID Summary Status Component Assigned to Target milestone
933398 avoid full copies when loading/storing large objects RESOLVED Storage: IndexedDB ---
1147821 Only disable IndexedDB in third-party windows when the third-party cookie preference is set RESOLVED Storage: IndexedDB Nika Layzell [:nika] (ni? for response) mozilla43
1182987 IndexedDB ends with onabort(event.target.error === QuotaExceededError) while processing deletion requests RESOLVED Storage: IndexedDB Jan Varga [:janv] mozilla48
1202067 Size limit on IndexedDB Blob storing RESOLVED Storage: IndexedDB ---
1202072 Crash when reading too much using FileReaderSync RESOLVED Storage: IndexedDB ---
1212882 [meta] Implement foreign fetch RESOLVED DOM: Service Workers ---

6 Total; 0 Open (0%); 6 Resolved (100%); 0 Verified (0%);

Improve browser graphics capabilities

  • Ship WebGL2 1.
  • Standardize and implement streaming WebGL canvas via WebRTC 1,2.
  • Run WebGL on discrete hardware for systems with integrated+discrete (e.g. nVidia Optimus).
Full Query
ID Summary Status Component Assigned to Target milestone
1136734 Bypass compositor for WebGL canvas elements in fullscreen mode. NEW Graphics: CanvasWebGL ---
1169000 Render, Composite, and Present within 1 vsync interval NEW Graphics ---
1184283 support multiple vsync sources (for different rates and special situations) NEW Graphics ---
863316 ANGLE should call D3DCompile off the main thread RESOLVED Graphics: CanvasWebGL ---
1161913 Handle preserveDrawingBuffer: false when capturing to a stream RESOLVED Graphics: CanvasWebGL Andreas Pehrson [:pehrsons] mozilla43
1271478 Implement webglcontextcreationerror RESOLVED Graphics: CanvasWebGL Kelsey Gilbert [:jgilbert] mozilla49
1281250 [meta] WebGL 2 blockers RESOLVED Graphics: CanvasWebGL Kelsey Gilbert [:jgilbert] ---

7 Total; 3 Open (42.86%); 4 Resolved (57.14%); 0 Verified (0%);


Allow developers to better avoid 32-bit browser Out-of-Memory conditions.

  • Ship 64-bit Firefox on 64-bit Windows.
  • Avoid Emscripten in-memory Virtual File System for asset storage by leveraging pthreads and FileReaderSync to provide synchronous file I/O in workers.

Continue investment in performance across the platform

  • Significantly optimize WebAudio performance 1.
  • Reduce WebGL shader compile times 1,2.
  • Reduce latency and jitter in the browser’s rendering pipeline 1,2,3,4.
  • Continue investments in the performance of JS, DOM, WebGL, WebRTC, codec, layout, rendering, compositing, animation, etc.
Full Query
ID Summary Status Component Assigned to Target milestone
918941 cache results of shader compilation NEW Graphics: CanvasWebGL ---
1057530 [meta] Reduce our GC max-pause NEW JavaScript: GC ---
1136734 Bypass compositor for WebGL canvas elements in fullscreen mode. NEW Graphics: CanvasWebGL ---
1169000 Render, Composite, and Present within 1 vsync interval NEW Graphics ---
1169293 [meta] Improve overall Web Audio API performance NEW Web Audio ---
863316 ANGLE should call D3DCompile off the main thread RESOLVED Graphics: CanvasWebGL ---
1071275 [meta] Enable Silk on Other platforms RESOLVED Performance Mason Chang [Inactive] [:mchang] 2.2 S11 (1may)

7 Total; 5 Open (71.43%); 2 Resolved (28.57%); 0 Verified (0%);

Continue investment in Emscripten

  • Add support for pthreads, SIMD, and WebAssembly, as mentioned above.
  • Further improve compilation speed.

Continue investment in Firefox developer tooling to better support game developers

  • Improve Web Worker support 1.
  • Allow developers to break on various asm.js/WebAssembly error conditions 1.
Full Query
ID Summary Status Component Assigned to Target milestone
1003097 [meta] Worker debugging NEW Debugger ---
912562 Add UI that allows user to browse, change prefs for all IndexedDB databases in their profile RESOLVED Storage Inspector ---
1008453 support for navigator.hardwareConcurrency RESOLVED DOM: Core & HTML Boris Zbarsky [:bzbarsky] mozilla48
1088655 OdinMonkey: add a pref that throws (with stack trace) on unaligned or null heap access RESOLVED JavaScript Engine: JIT Luke Wagner [:luke] ---
1241485 Increase the limit for workers per-origin RESOLVED DOM: Workers Olli Pettay [:smaug][bugs@pettay.fi] mozilla47

5 Total; 1 Open (20%); 4 Resolved (80%); 0 Verified (0%);


Continue implementation of Service Workers to support offline

  • Ship Service Workers and dependent features 1.
Full Query
ID Summary Status Component Assigned to Target milestone
1226983 [meta] Service Worker spec compatibility issues NEW DOM: Service Workers ---
1231208 [meta] Service worker e10s redesign NEW DOM: Service Workers Andrew Sutherland [:asuth] (he/him) ---
1262699 [meta] Service Workers Developer Tooling NEW General ---
1283191 [meta] Service worker streaming NEW DOM: Service Workers ---
1328391 [meta] Service Worker Data Collection NEW DOM: Service Workers ---
1328614 [meta] Service Workers Tests NEW DOM: Service Workers ---
1328622 [meta] Service Worker Performance NEW DOM: Service Workers ---

7 Total; 7 Open (100%); 0 Resolved (0%); 0 Verified (0%);


Under Consideration

  • Developers are having trouble identifying how many Web Workers they should create to distribute their workload. Benchmarking methods often prove unreliable.
  • Developers are hitting the 20-per-origin limit on web workers in Firefox and are requesting a much higher limit.
  • Leverage multi-process browser architecture to guarantee a fresh address space for games with large contiguous heaps allocated early in process startup.
  • Investigate Out-of-Memory error reporting mechanism to send safe/sanitized triage information back to Web app developers.
  • Collaborate on new standards to improve IME capabilities [1],2.
  • Add hardware cursor API 1.
  • Improve Gamepad API 1.
  • Add Pointer Clipping extension to Pointer Lock API 1.
  • Add Emscripten tooling for memory use/leak debugging.
  • Standardize (as part of WebAssembly or more generally) a more scalable form of source maps suitable for large compiled codes.

Related Projects

Helpful Links

Tracking

Bugzilla Queries

Priority

Communication

Project Team Meeting Thursdays at 9:00 AM Pacific for 60 mins
  • Vidyo Room: Games's Vidyo Room
  • Invitation: Contact avaughn@mozilla.com (:avaughn) to get added to the meeting invite list.
IRC
  • Server: irc.mozilla.org
  • Channel: #games

People

Games Platform & Research

  • Andre Vrignaud - <avrignaud@mozilla.com>
  • Martin Best - <mbest@mozilla.com>
  • Alon Zakai - <azakai@mozilla.com>
  • Jeffrey Gilbert - <jgilbert@mozilla.com>
  • Jukka Jylänki - <jjylanki@mozilla.com>
  • Luke Wagner - <lwagner@mozilla.com>
  • Naveed Ihsanullah - <nihsanullah@mozilla.com>
  • Milan Sreckovic - <msreckovic@mozilla.com>
  • Vladimir Vukicevic - <vladimir@mozilla.com>
  • Maire Reavy - <mreavy@mozilla.com>
  • Peter Chang - <pchang@mozilla.com>

References

Retrieved from "https://wiki.allizom.org/index.php?title=Platform/Games&oldid=1152938"