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-rw-r--r--src/effects/gradients/SkLinearGradient.cpp6
1 files changed, 5 insertions, 1 deletions
diff --git a/src/effects/gradients/SkLinearGradient.cpp b/src/effects/gradients/SkLinearGradient.cpp
index 013c1f1dde..bfa473c012 100644
--- a/src/effects/gradients/SkLinearGradient.cpp
+++ b/src/effects/gradients/SkLinearGradient.cpp
@@ -727,6 +727,9 @@ template <bool apply_alpha> void fill(SkPMColor dst[], int count, const Sk4f& c4
*/
static Sk4f lerp_color(float fx, const SkLinearGradient::LinearGradientContext::Rec* rec) {
+ SkASSERT(fx >= rec[0].fPos);
+ SkASSERT(fx <= rec[1].fPos);
+
const float p0 = rec[0].fPos;
const Sk4f c0 = rec[0].fColor;
const Sk4f c1 = rec[1].fColor;
@@ -894,7 +897,8 @@ void SkLinearGradient::LinearGradientContext::shade4_clamp(int x, int y, SkPMCol
const float invDx = 1 / dx;
if (SkScalarNearlyZero(dx)) { // gradient is vertical
- Sk4f c = lerp_color(fx, find_forward(fRecs.begin(), SkTPin(fx, 0.0f, 1.0f)));
+ const float pinFx = SkTPin(fx, 0.0f, 1.0f);
+ Sk4f c = lerp_color(pinFx, find_forward(fRecs.begin(), pinFx));
if (fApplyAlphaAfterInterp) {
fill<true>(dstC, count, c + dither0, c + dither1);
} else {