The only substantive change in this CL is skipping atlasing
for any layers that are involved in nesting. Prior versions
have allowed nesting layers to be atlased.
--------------------------------------------------------
All times are on Windows with a repeat count of 200.
Format is: <time in ms> (<# of glBindframebuffer calls>)
How to interpret this:
For the boogie page:
both columns should be the same (since boogie has no
nested layers)
without the new API the tiled case doesn't show any real
benefit from hoisting
For the carsvg page:
The nesting change does increase the number of FBO
switches but doesn't kill performance
Because of the location & size of the layers the
tile case does show some improvement (even
without the new API)
boogie
-------
w/o nested change w/ nested change
simple 5.62 (811) N/A
tiled 7.72 (811) N/A
simple w/ hoisting 5.23 (409) 5.77 (409)
(but no caching)
tiled w/ hoisting 7.57 (809) 7.49 (809)
(but no caching)
carsvg
------
w/o nested change w/ nested change
simple 60.37 (141990) N/A
tiled 115.13 (256929) N/A
simple w/ hoisting 41.57 (64570) 42.82 (72279)
(but no caching)
tiled w/ hoisting 84.24 (154352) 84.71 (165630)
(but no caching)
R=bsalomon@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/476833004
This CL makes it possible for pulled-forward-layers to be atlased. It currently has a couple glaring limitations (which is why it is disabled):
1) the atlased layers cannot be purged nor aged out
2) the texture backing the atlas is not pulled from (or returned to) the resource cache
#1 is on hold until we have a recycling rectanizer
A separate major limitation (the non-atlased layers aren't cached) is blocked until we can transmute entries in the resource cache from scratch to non-scratch while potentially preserving their contents.
Committed: https://skia.googlesource.com/skia/+/55e61f0ef4e5c8c34ac107deaadc9b4ffef3111bR=bsalomon@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/354533004
Reason for revert:
Sigh
Original issue's description:
> Begin atlasing
>
> This CL makes it possible for pulled-forward-layers to be atlased. It currently has a couple glaring limitations (which is why it is disabled):
>
> 1) the atlased layers cannot be purged nor aged out
> 2) the texture backing the atlas is not pulled from (or returned to) the resource cache
>
> #1 is on hold until we have a recycling rectanizer
>
> A separate major limitation (the non-atlased layers aren't cached) is blocked until we can transmute entries in the resource cache from scratch to non-scratch while potentially preserving their contents.
>
> Committed: https://skia.googlesource.com/skia/+/55e61f0ef4e5c8c34ac107deaadc9b4ffef3111bR=bsalomon@google.comTBR=bsalomon@google.com
NOTREECHECKS=true
NOTRY=true
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/359953002
This CL makes it possible for pulled-forward-layers to be atlased. It currently has a couple glaring limitations (which is why it is disabled):
1) the atlased layers cannot be purged nor aged out
2) the texture backing the atlas is not pulled from (or returned to) the resource cache
#1 is on hold until we have a recycling rectanizer
A separate major limitation (the non-atlased layers aren't cached) is blocked until we can transmute entries in the resource cache from scratch to non-scratch while potentially preserving their contents.
R=bsalomon@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/354533004
