Culling API
*** SKP format breaking change ***
Adding a couple of culling primitives: pushCull(SkRect) & popCull().
These are currently only plumbed for SKP playback quickreject.
At record time, we perform a couple of optimizations to trim down the
number of redundant culls:
* collapse empty pushCull/popCull pairs
* skip pushCull/popCull pairs nested within an identical cull rect
Things still missing/to consider:
* use an inlineable, simplified quickreject (Mike's old prototype)
* debugger visualization for cull boxes
* BBH integration: the initial prototype had some minimal BBH support,
but since the optimizations required expensive rewinds and culling
is expected to be a BBH alternative, it got dropped.
R=bsalomon@google.com, reed@google.com, robertphillips@google.com, caryclark@google.com, tomhudson@google.com, iancottrell@google.com
Author: fmalita@chromium.org
Review URL: https://codereview.chromium.org/138013009
git-svn-id: http://skia.googlecode.com/svn/trunk@13611 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/core/SkPictureRecord.h b/src/core/SkPictureRecord.h
index 2fb99fa..dc439a1 100644
--- a/src/core/SkPictureRecord.h
+++ b/src/core/SkPictureRecord.h
@@ -120,6 +120,8 @@
};
#endif
+ SkTDArray<uint32_t> fCullOffsetStack;
+
/*
* Write the 'drawType' operation and chunk size to the skp. 'size'
* can potentially be increased if the chunk size needs its own storage
@@ -223,6 +225,8 @@
return NULL;
}
virtual void onDrawDRRect(const SkRRect&, const SkRRect&, const SkPaint&) SK_OVERRIDE;
+ virtual void onPushCull(const SkRect&) SK_OVERRIDE;
+ virtual void onPopCull() SK_OVERRIDE;
// Return fontmetrics.fTop,fBottom in topbot[0,1], after they have been
// tweaked by paint.computeFastBounds().