cc/output/filter_operations.h - Issue 1998233002: cc: Implement and use FilterOperations::MapRectReverse for mapping backdrop bounding box.

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Unified Diff: cc/output/filter_operations.h

Issue 1998233002: cc: Implement and use FilterOperations::MapRectReverse for mapping backdrop bounding box. (Closed) Base URL: https://chromium.googlesource.com/chromium/src.git@master

Patch Set: unit test Created 4 years, 6 months ago

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Index: cc/output/filter_operations.h

diff --git a/cc/output/filter_operations.h b/cc/output/filter_operations.h

index 542da1f2b0db97a1f56acc18c22b7ac4a7621fec..d0cd0e605a0c6c9f7207e8c0bcd7691732799239 100644

--- a/cc/output/filter_operations.h

+++ b/cc/output/filter_operations.h

@@ -58,6 +58,10 @@ class CC_EXPORT FilterOperations {

// by pixels in the source rect.

gfx::Rect MapRect(const gfx::Rect& rect, const SkMatrix& matrix) const;

+ // Maps "backward" to determine which pixels in the source affect the pixels

+ // in the destination rect.

+ gfx::Rect MapRectReverse(const gfx::Rect& rect, const SkMatrix& matrix) const;

void GetOutsets(int* top, int* right, int* bottom, int* left) const;

bool HasFilterThatMovesPixels() const;

bool HasFilterThatAffectsOpacity() const;

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