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Issue #2364 - use DrawTarget::DrawSurfaceWithShadow to render box shadows on platforms that accelerate it.

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This commit is contained in:
Moonchild 2023-10-30 13:03:32 +01:00 • committed by roytam1
commit 4beb3b947c
13 changed files with 228 additions and 150 deletions
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26
gfx/thebes/gfxBlur.h
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@ -56,6 +56,9 @@ public:
/**
* Constructs a box blur and initializes the temporary surface.
*
* @param aDestinationCtx The destination to blur to.
*
* @param aRect The coordinates of the surface to create in device units.
*
* @param aBlurRadius The blur radius in pixels. This is the radius of
@ -73,21 +76,27 @@ public:
* for speed reasons. It is safe to pass nullptr here.
*/
already_AddRefed<gfxContext>
Init(const gfxRect& aRect,
Init(gfxContext* aDestinationCtx,
const gfxRect& aRect,
const mozilla::gfx::IntSize& aSpreadRadius,
const mozilla::gfx::IntSize& aBlurRadius,
const gfxRect* aDirtyRect,
const gfxRect* aSkipRect);
already_AddRefed<DrawTarget>
InitDrawTarget(const mozilla::gfx::Rect& aRect,
InitDrawTarget(const mozilla::gfx::DrawTarget* aReferenceDT,
const mozilla::gfx::Rect& aRect,
const mozilla::gfx::IntSize& aSpreadRadius,
const mozilla::gfx::IntSize& aBlurRadius,
const mozilla::gfx::Rect* aDirtyRect = nullptr,
const mozilla::gfx::Rect* aSkipRect = nullptr);
/**
* Performs the blur and optionally colors the result if aShadowColor is not null.
*/
already_AddRefed<mozilla::gfx::SourceSurface>
DoBlur(DrawTarget* aDT, mozilla::gfx::IntPoint* aTopLeft);
DoBlur(const mozilla::gfx::Color* aShadowColor = nullptr,
mozilla::gfx::IntPoint* aOutTopLeft = nullptr);
/**
* Does the actual blurring/spreading and mask applying. Users of this
@ -170,6 +179,12 @@ protected:
DrawTarget* aDestDrawTarget,
bool aMirrorCorners);
/**
* The DrawTarget of the temporary alpha surface.
*/
RefPtr<DrawTarget> mDrawTarget;
/**
* The temporary alpha surface.
*/
@ -179,6 +194,11 @@ protected:
* The object that actually does the blurring for us.
*/
mozilla::gfx::AlphaBoxBlur mBlur;
/**
* Indicates using DrawTarget-accelerated blurs.
*/
bool mAccelerated;
};
#endif /* GFX_BLUR_H */