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// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_RASTER_INVALIDATION_TRACKING_H_
#define THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_RASTER_INVALIDATION_TRACKING_H_
#include <optional>
#include "cc/base/region.h"
#include "third_party/blink/renderer/platform/graphics/paint/display_item_client_types.h"
#include "third_party/blink/renderer/platform/graphics/paint/paint_record.h"
#include "third_party/blink/renderer/platform/graphics/paint_invalidation_reason.h"
#include "third_party/blink/renderer/platform/heap/garbage_collected.h"
#include "third_party/blink/renderer/platform/json/json_values.h"
#include "third_party/blink/renderer/platform/wtf/text/wtf_string.h"
#include "third_party/skia/include/core/SkColor.h"
#include "ui/gfx/geometry/rect.h"
namespace cc {
struct LayerDebugInfo;
}
namespace blink {
struct RasterInvalidationInfo {
DISALLOW_NEW();
// This is for comparison only. Don't dereference because the client may have
// died.
DisplayItemClientId client_id = kInvalidDisplayItemClientId;
String client_debug_name;
// For CAP, this is set in PaintArtifactCompositor when converting chunk
// raster invalidations to cc raster invalidations.
gfx::Rect rect;
PaintInvalidationReason reason = PaintInvalidationReason::kLayout;
};
inline bool operator==(const RasterInvalidationInfo& a,
const RasterInvalidationInfo& b) {
return a.client_id == b.client_id &&
a.client_debug_name == b.client_debug_name && a.rect == b.rect &&
a.reason == b.reason;
}
inline bool operator!=(const RasterInvalidationInfo& a,
const RasterInvalidationInfo& b) {
return !(a == b);
}
inline std::ostream& operator<<(std::ostream& os,
const RasterInvalidationInfo& info) {
return os << info.client_id << ":" << info.client_debug_name
<< " rect=" << info.rect.ToString() << " reason=" << info.reason;
}
struct RasterUnderInvalidation {
DISALLOW_NEW();
int x;
int y;
// TODO(https://crbug.com/1351544): This class should use SkColor4f.
SkColor old_pixel;
SkColor new_pixel;
};
class PLATFORM_EXPORT RasterInvalidationTracking
: public GarbageCollected<RasterInvalidationTracking> {
public:
void Trace(Visitor*) const {}
// When RuntimeEnabledFeatures::PaintUnderInvalidationCheckingEnabled() and
// SimulateRasterUnderInvalidation(true) is called, all changed pixels will
// be reported as raster under-invalidations. Used to visually test raster
// under-invalidation checking feature.
static void SimulateRasterUnderInvalidations(bool enable);
// Whether we should always track because RuntimeEnabledFeatures::
// PaintUnderInvalidationCheckingEnabled() is true, or we are tracing
// "disabled-by-default-blink.invalidation" category.
static bool ShouldAlwaysTrack();
static bool IsTracingRasterInvalidations();
void AddInvalidation(DisplayItemClientId,
const String& debug_name,
const gfx::Rect&,
PaintInvalidationReason);
bool HasInvalidations() const { return !invalidations_.empty(); }
const Vector<RasterInvalidationInfo>& Invalidations() const {
return invalidations_;
}
void ClearInvalidations() { invalidations_.clear(); }
// Compares the last recording against |new_record|, by rastering both into
// bitmaps. If there are any differences outside of invalidated regions,
// the corresponding pixels in UnderInvalidationRecord() will be drawn in
// dark red. The caller can overlay UnderInvalidationRecord() onto the
// original drawings to show the under raster invalidations.
void CheckUnderInvalidations(const String& layer_debug_name,
PaintRecord new_record,
const gfx::Rect& new_interest_rect);
void AsJSON(JSONObject*, bool detailed) const;
void AddToLayerDebugInfo(cc::LayerDebugInfo&) const;
// The record containing under-invalidated pixels in dark red.
PaintRecord UnderInvalidationRecord() const {
return under_invalidation_record_;
}
private:
Vector<RasterInvalidationInfo> invalidations_;
// The following fields are for raster under-invalidation detection.
std::optional<PaintRecord> last_painted_record_;
gfx::Rect last_interest_rect_;
cc::Region invalidation_region_since_last_paint_;
Vector<RasterUnderInvalidation> under_invalidations_;
PaintRecord under_invalidation_record_;
};
} // namespace blink
#endif // THIRD_PARTY_BLINK_RENDERER_PLATFORM_GRAPHICS_PAINT_RASTER_INVALIDATION_TRACKING_H_
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