Reland "Fold analytic clip FPs into GrReducedClip"

This is a reland of 4355b26b359d5f2597a10012e7eb11fb3a1f025b
Original change's description:
> Fold analytic clip FPs into GrReducedClip
>
> Perf result on Pixel phone (sorted by impact):
>
>   GEOMEAN                              7.44 -> 6.92 ms   [ 93%]
>
>   keymobi_cnn_com.skp                  3.55 -> 3.59 ms   [101%]
>   keymobi_theverge_com.skp             4.08 -> 4.13 ms   [101%]
>   desk_skbug6850autoscroll.skp         1.21 -> 1.22 ms   [101%]
>   ...
>   top25desk_weather_com.skp            14.2 -> 11.5 ms   [ 81%]
>   keymobi_androidpolice_com_2012_.skp  3.84 -> 2.95 ms   [ 77%]
>   keymobi_shop_mobileweb_ebay_com.skp  2.94 -> 2.26 ms   [ 77%]
>   keymobi_boingboing_net.skp           3.08 -> 2.24 ms   [ 73%]
>   desk_jsfiddlebigcar.skp              1.90 -> 1.25 ms   [ 66%]
>   keymobi_m_youtube_com_watch_v_9.skp  13.5 -> 8.84 ms   [ 65%]
>   keymobi_sfgate_com_.skp              8.55 -> 5.55 ms   [ 65%]
>   keymobi_blogger.skp                  4.01 -> 2.60 ms   [ 65%]
>
> Cleaner code, improved skps, slightly better geometric mean time.
>
> Pixel C is mostly unaffected, presumably because it uses window
> rectangles.
>
> Bug: skia:7190
> Change-Id: Ia93f68b2f971ea66b3ab19dc73557ea602932a92
> Reviewed-on: https://skia-review.googlesource.com/67424
> Commit-Queue: Chris Dalton <csmartdalton@google.com>
> Reviewed-by: Brian Salomon <bsalomon@google.com>

TBR=bsalomon@google.com

Bug: skia:7190
Change-Id: I92f1ed21b6292feb3209fcbd1725487784d420da
Reviewed-on: https://skia-review.googlesource.com/72562
Reviewed-by: Chris Dalton <csmartdalton@google.com>
Commit-Queue: Chris Dalton <csmartdalton@google.com>

1 files changed, 7 insertions, 3 deletions

diff --git a/src/gpu/GrRenderTargetContextPriv.h b/src/gpu/GrRenderTargetContextPriv.h
index 874e9c9f00..0d73793c9d 100644
--- a/src/gpu/GrRenderTargetContextPriv.h
+++ b/src/gpu/GrRenderTargetContextPriv.h
@@ -29,18 +29,22 @@ public:
 
     // called to note the last clip drawn to the stencil buffer.
     // TODO: remove after clipping overhaul.
-    void setLastClip(uint32_t clipStackGenID, const SkIRect& devClipBounds) {
+    void setLastClip(uint32_t clipStackGenID, const SkIRect& devClipBounds,
+                     int numClipAnalyticFPs) {
         GrRenderTargetOpList* opList = fRenderTargetContext->getRTOpList();
         opList->fLastClipStackGenID = clipStackGenID;
         opList->fLastDevClipBounds = devClipBounds;
+        opList->fLastClipNumAnalyticFPs = numClipAnalyticFPs;
     }
 
     // called to determine if we have to render the clip into SB.
     // TODO: remove after clipping overhaul.
-    bool mustRenderClip(uint32_t clipStackGenID, const SkIRect& devClipBounds) const {
+    bool mustRenderClip(uint32_t clipStackGenID, const SkIRect& devClipBounds,
+                        int numClipAnalyticFPs) const {
         GrRenderTargetOpList* opList = fRenderTargetContext->getRTOpList();
         return opList->fLastClipStackGenID != clipStackGenID ||
-               !opList->fLastDevClipBounds.contains(devClipBounds);
+               !opList->fLastDevClipBounds.contains(devClipBounds) ||
+               opList->fLastClipNumAnalyticFPs != numClipAnalyticFPs;
     }
 
     void clear(const GrFixedClip&, const GrColor, bool canIgnoreClip);