Make GMs aware of what tool they're being run in.
Add a saveLayer set of draws to convex_poly_clip and fix GPU bug where polygon clips don't account for the translation between clip and device space.
BUG=skia:2051
R=robertphillips@google.com, reed@google.com
Author: bsalomon@google.com
Review URL: https://codereview.chromium.org/148283017
git-svn-id: http://skia.googlecode.com/svn/trunk@13371 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/effects/GrConvexPolyEffect.cpp b/src/gpu/effects/GrConvexPolyEffect.cpp
index e47ed0f..98af694 100644
--- a/src/gpu/effects/GrConvexPolyEffect.cpp
+++ b/src/gpu/effects/GrConvexPolyEffect.cpp
@@ -97,7 +97,7 @@
//////////////////////////////////////////////////////////////////////////////
-GrEffectRef* GrConvexPolyEffect::Create(EdgeType type, const SkPath& path) {
+GrEffectRef* GrConvexPolyEffect::Create(EdgeType type, const SkPath& path, const SkVector* offset) {
if (path.getSegmentMasks() != SkPath::kLine_SegmentMask ||
!path.isConvex() ||
path.isInverseFillType()) {
@@ -114,6 +114,13 @@
SkPath::Direction dir;
SkAssertResult(path.cheapComputeDirection(&dir));
+ SkVector t;
+ if (NULL == offset) {
+ t.set(0, 0);
+ } else {
+ t = *offset;
+ }
+
int count = path.getPoints(pts, kMaxEdges);
int n = 0;
for (int lastPt = count - 1, i = 0; i < count; lastPt = i++) {
@@ -127,7 +134,8 @@
edges[3 * n] = -v.fY;
edges[3 * n + 1] = v.fX;
}
- edges[3 * n + 2] = -(edges[3 * n] * pts[i].fX + edges[3 * n + 1] * pts[i].fY);
+ SkPoint p = pts[i] + t;
+ edges[3 * n + 2] = -(edges[3 * n] * p.fX + edges[3 * n + 1] * p.fY);
++n;
}
}