Simplify the gradient color stop optimizer
We're just discarding the leftmost/rightmost stops -- this can be
achieved by simply adjusting the start offset and count.
R=reed@google.com
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2265803002
Review-Url: https://codereview.chromium.org/2265803002
diff --git a/src/effects/gradients/SkGradientShader.cpp b/src/effects/gradients/SkGradientShader.cpp
index 58c0d3b..a0cbe97 100644
--- a/src/effects/gradients/SkGradientShader.cpp
+++ b/src/effects/gradients/SkGradientShader.cpp
@@ -786,14 +786,10 @@
SkShader::kMirror_TileMode == mode ||
colors[0] == colors[1]) {
- fColorStorage[0] = colors[1];
- fColorStorage[1] = colors[2];
- fPosStorage[0] = 0.0f;
- fPosStorage[1] = 1.0f;
-
- fColors = fColorStorage;
- fPos = fPosStorage;
- fCount = 2;
+ // Ignore the leftmost color/pos.
+ fColors += 1;
+ fPos += 1;
+ fCount = 2;
}
} else if (SkScalarNearlyEqual(pos[0], 0.0f) &&
SkScalarNearlyEqual(pos[1], 1.0f) &&
@@ -803,6 +799,7 @@
SkShader::kMirror_TileMode == mode ||
colors[1] == colors[2]) {
+ // Ignore the rightmost color/pos.
fCount = 2;
}
}
@@ -811,9 +808,6 @@
const SkColor* fColors;
const SkScalar* fPos;
int fCount;
-
- SkColor fColorStorage[2];
- SkScalar fPosStorage[2];
};
sk_sp<SkShader> SkGradientShader::MakeLinear(const SkPoint pts[2],