Source/platform/graphics/CompositingReasons.h - Issue 784453003: Initial scroll-blocks-on compositor integration

Unified Diff: Source/platform/graphics/CompositingReasons.h

Issue 784453003: Initial scroll-blocks-on compositor integration (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: Eliminate scrollbars from iframe test for cross-platform output consistency Created 5 years, 11 months ago

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Index: Source/platform/graphics/CompositingReasons.h

diff --git a/Source/platform/graphics/CompositingReasons.h b/Source/platform/graphics/CompositingReasons.h

index 72f738136e4d5cb88eee6c8298a492e27d80e5ef..580d6ca89b6f83af5f88c9cfdb046d952f10a6a1 100644

--- a/Source/platform/graphics/CompositingReasons.h

+++ b/Source/platform/graphics/CompositingReasons.h

@@ -29,62 +29,63 @@ const uint64_t CompositingReasonOverflowScrollingParent = UINT6

const uint64_t CompositingReasonOutOfFlowClipping = UINT64_C(1) << 11;

const uint64_t CompositingReasonVideoOverlay = UINT64_C(1) << 12;

const uint64_t CompositingReasonWillChangeCompositingHint = UINT64_C(1) << 13;

+const uint64_t CompositingReasonScrollBlocksOn = UINT64_C(1) << 14;

// Overlap reasons that require knowing what's behind you in paint-order before knowing the answer

-const uint64_t CompositingReasonAssumedOverlap = UINT64_C(1) << 14;

-const uint64_t CompositingReasonOverlap = UINT64_C(1) << 15;

-const uint64_t CompositingReasonNegativeZIndexChildren = UINT64_C(1) << 16;

-const uint64_t CompositingReasonScrollsWithRespectToSquashingLayer = UINT64_C(1) << 17;

-const uint64_t CompositingReasonSquashingSparsityExceeded = UINT64_C(1) << 18;

-const uint64_t CompositingReasonSquashingClippingContainerMismatch = UINT64_C(1) << 19;

-const uint64_t CompositingReasonSquashingOpacityAncestorMismatch = UINT64_C(1) << 20;

-const uint64_t CompositingReasonSquashingTransformAncestorMismatch = UINT64_C(1) << 21;

-const uint64_t CompositingReasonSquashingFilterMismatch = UINT64_C(1) << 22;

-const uint64_t CompositingReasonSquashingWouldBreakPaintOrder = UINT64_C(1) << 23;

-const uint64_t CompositingReasonSquashingVideoIsDisallowed = UINT64_C(1) << 24;

-const uint64_t CompositingReasonSquashedLayerClipsCompositingDescendants = UINT64_C(1) << 25;

-const uint64_t CompositingReasonSquashingRenderPartIsDisallowed = UINT64_C(1) << 26;

-const uint64_t CompositingReasonSquashingReflectionIsDisallowed = UINT64_C(1) << 27;

-const uint64_t CompositingReasonSquashingBlendingIsDisallowed = UINT64_C(1) << 28;

+const uint64_t CompositingReasonAssumedOverlap = UINT64_C(1) << 15;

+const uint64_t CompositingReasonOverlap = UINT64_C(1) << 16;

+const uint64_t CompositingReasonNegativeZIndexChildren = UINT64_C(1) << 17;

+const uint64_t CompositingReasonScrollsWithRespectToSquashingLayer = UINT64_C(1) << 18;

+const uint64_t CompositingReasonSquashingSparsityExceeded = UINT64_C(1) << 19;

+const uint64_t CompositingReasonSquashingClippingContainerMismatch = UINT64_C(1) << 20;

+const uint64_t CompositingReasonSquashingOpacityAncestorMismatch = UINT64_C(1) << 21;

+const uint64_t CompositingReasonSquashingTransformAncestorMismatch = UINT64_C(1) << 22;

+const uint64_t CompositingReasonSquashingFilterMismatch = UINT64_C(1) << 23;

+const uint64_t CompositingReasonSquashingWouldBreakPaintOrder = UINT64_C(1) << 24;

+const uint64_t CompositingReasonSquashingVideoIsDisallowed = UINT64_C(1) << 25;

+const uint64_t CompositingReasonSquashedLayerClipsCompositingDescendants = UINT64_C(1) << 26;

+const uint64_t CompositingReasonSquashingRenderPartIsDisallowed = UINT64_C(1) << 27;

+const uint64_t CompositingReasonSquashingReflectionIsDisallowed = UINT64_C(1) << 28;

+const uint64_t CompositingReasonSquashingBlendingIsDisallowed = UINT64_C(1) << 29;

// Subtree reasons that require knowing what the status of your subtree is before knowing the answer

-const uint64_t CompositingReasonTransformWithCompositedDescendants = UINT64_C(1) << 29;

-const uint64_t CompositingReasonOpacityWithCompositedDescendants = UINT64_C(1) << 30;

-const uint64_t CompositingReasonMaskWithCompositedDescendants = UINT64_C(1) << 31;

-const uint64_t CompositingReasonReflectionWithCompositedDescendants = UINT64_C(1) << 32;

-const uint64_t CompositingReasonFilterWithCompositedDescendants = UINT64_C(1) << 33;

-const uint64_t CompositingReasonBlendingWithCompositedDescendants = UINT64_C(1) << 34;

-const uint64_t CompositingReasonClipsCompositingDescendants = UINT64_C(1) << 35;

-const uint64_t CompositingReasonPerspectiveWith3DDescendants = UINT64_C(1) << 36;

-const uint64_t CompositingReasonPreserve3DWith3DDescendants = UINT64_C(1) << 37;

-const uint64_t CompositingReasonReflectionOfCompositedParent = UINT64_C(1) << 38;

-const uint64_t CompositingReasonIsolateCompositedDescendants = UINT64_C(1) << 39;

+const uint64_t CompositingReasonTransformWithCompositedDescendants = UINT64_C(1) << 30;

+const uint64_t CompositingReasonOpacityWithCompositedDescendants = UINT64_C(1) << 31;

+const uint64_t CompositingReasonMaskWithCompositedDescendants = UINT64_C(1) << 32;

+const uint64_t CompositingReasonReflectionWithCompositedDescendants = UINT64_C(1) << 33;

+const uint64_t CompositingReasonFilterWithCompositedDescendants = UINT64_C(1) << 34;

+const uint64_t CompositingReasonBlendingWithCompositedDescendants = UINT64_C(1) << 35;

+const uint64_t CompositingReasonClipsCompositingDescendants = UINT64_C(1) << 36;

+const uint64_t CompositingReasonPerspectiveWith3DDescendants = UINT64_C(1) << 37;

+const uint64_t CompositingReasonPreserve3DWith3DDescendants = UINT64_C(1) << 38;

+const uint64_t CompositingReasonReflectionOfCompositedParent = UINT64_C(1) << 39;

+const uint64_t CompositingReasonIsolateCompositedDescendants = UINT64_C(1) << 40;

// The root layer is a special case that may be forced to be a layer, but also it needs to be

// a layer if anything else in the subtree is composited.

-const uint64_t CompositingReasonRoot = UINT64_C(1) << 40;

+const uint64_t CompositingReasonRoot = UINT64_C(1) << 41;

// CompositedLayerMapping internal hierarchy reasons

-const uint64_t CompositingReasonLayerForAncestorClip = UINT64_C(1) << 41;

-const uint64_t CompositingReasonLayerForDescendantClip = UINT64_C(1) << 42;

-const uint64_t CompositingReasonLayerForPerspective = UINT64_C(1) << 43;

-const uint64_t CompositingReasonLayerForHorizontalScrollbar = UINT64_C(1) << 44;

-const uint64_t CompositingReasonLayerForVerticalScrollbar = UINT64_C(1) << 45;

-const uint64_t CompositingReasonLayerForOverflowControlsHost = UINT64_C(1) << 46;

-const uint64_t CompositingReasonLayerForScrollCorner = UINT64_C(1) << 47;

-const uint64_t CompositingReasonLayerForScrollingContents = UINT64_C(1) << 48;

-const uint64_t CompositingReasonLayerForScrollingContainer = UINT64_C(1) << 49;

-const uint64_t CompositingReasonLayerForSquashingContents = UINT64_C(1) << 50;

-const uint64_t CompositingReasonLayerForSquashingContainer = UINT64_C(1) << 51;

-const uint64_t CompositingReasonLayerForForeground = UINT64_C(1) << 52;

-const uint64_t CompositingReasonLayerForBackground = UINT64_C(1) << 53;

-const uint64_t CompositingReasonLayerForMask = UINT64_C(1) << 54;

-const uint64_t CompositingReasonLayerForClippingMask = UINT64_C(1) << 55;

-const uint64_t CompositingReasonLayerForScrollingBlockSelection = UINT64_C(1) << 56;

+const uint64_t CompositingReasonLayerForAncestorClip = UINT64_C(1) << 42;

+const uint64_t CompositingReasonLayerForDescendantClip = UINT64_C(1) << 43;

+const uint64_t CompositingReasonLayerForPerspective = UINT64_C(1) << 44;

+const uint64_t CompositingReasonLayerForHorizontalScrollbar = UINT64_C(1) << 45;

+const uint64_t CompositingReasonLayerForVerticalScrollbar = UINT64_C(1) << 46;

+const uint64_t CompositingReasonLayerForOverflowControlsHost = UINT64_C(1) << 47;

+const uint64_t CompositingReasonLayerForScrollCorner = UINT64_C(1) << 48;

+const uint64_t CompositingReasonLayerForScrollingContents = UINT64_C(1) << 49;

+const uint64_t CompositingReasonLayerForScrollingContainer = UINT64_C(1) << 50;

+const uint64_t CompositingReasonLayerForSquashingContents = UINT64_C(1) << 51;

+const uint64_t CompositingReasonLayerForSquashingContainer = UINT64_C(1) << 52;

+const uint64_t CompositingReasonLayerForForeground = UINT64_C(1) << 53;

+const uint64_t CompositingReasonLayerForBackground = UINT64_C(1) << 54;

+const uint64_t CompositingReasonLayerForMask = UINT64_C(1) << 55;

+const uint64_t CompositingReasonLayerForClippingMask = UINT64_C(1) << 56;

+const uint64_t CompositingReasonLayerForScrollingBlockSelection = UINT64_C(1) << 57;

// Composited elements with inline transforms trigger assumed overlap so that

// we can update their transforms quickly.

-const uint64_t CompositingReasonInlineTransform = UINT64_C(1) << 57;

+const uint64_t CompositingReasonInlineTransform = UINT64_C(1) << 58;

// Various combinations of compositing reasons are defined here also, for more intutive and faster bitwise logic.

const uint64_t CompositingReasonComboAllDirectReasons =

@@ -101,14 +102,16 @@ const uint64_t CompositingReasonComboAllDirectReasons =

| CompositingReasonOverflowScrollingParent

| CompositingReasonOutOfFlowClipping

| CompositingReasonVideoOverlay

- | CompositingReasonWillChangeCompositingHint;

+ | CompositingReasonWillChangeCompositingHint

+ | CompositingReasonScrollBlocksOn;

const uint64_t CompositingReasonComboAllDirectStyleDeterminedReasons =

CompositingReason3DTransform

| CompositingReasonBackfaceVisibilityHidden

| CompositingReasonActiveAnimation

| CompositingReasonTransitionProperty

- | CompositingReasonWillChangeCompositingHint;

+ | CompositingReasonWillChangeCompositingHint

+ | CompositingReasonScrollBlocksOn;

const uint64_t CompositingReasonComboCompositedDescendants =

CompositingReasonTransformWithCompositedDescendants

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