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Public Member Functions | List of all members
flutter::TextureLayer Class Reference

#include <texture_layer.h>

Inheritance diagram for flutter::TextureLayer:
flutter::Layer

Public Member Functions

 TextureLayer (const DlPoint &offset, const DlSize &size, int64_t texture_id, bool freeze, DlImageSampling sampling)
 
bool IsReplacing (DiffContext *context, const Layer *layer) const override
 
void Diff (DiffContext *context, const Layer *old_layer) override
 
const TextureLayer * as_texture_layer () const override
 
void Preroll (PrerollContext *context) override
 
void Paint (PaintContext &context) const override
 
- Public Member Functions inherited from flutter::Layer
 Layer ()
 
virtual ~Layer ()
 
void AssignOldLayer (Layer *old_layer)
 
virtual void PreservePaintRegion (DiffContext *context)
 
virtual void PaintChildren (PaintContext &context) const
 
bool subtree_has_platform_view () const
 
void set_subtree_has_platform_view (bool value)
 
const DlRect & paint_bounds () const
 
void set_paint_bounds (const DlRect &paint_bounds)
 
bool is_empty () const
 
bool needs_painting (PaintContext &context) const
 
uint64_t original_layer_id () const
 
uint64_t unique_id () const
 
virtual RasterCacheKeyID caching_key_id () const
 
virtual const ContainerLayer * as_container_layer () const
 
virtual const DisplayListLayer * as_display_list_layer () const
 
virtual const PerformanceOverlayLayer * as_performance_overlay_layer () const
 
virtual const testing::MockLayer * as_mock_layer () const
 

Additional Inherited Members

- Static Public Attributes inherited from flutter::Layer
static constexpr int kSaveLayerRenderFlags
 
static constexpr int kRasterCacheRenderFlags
 

Detailed Description

Definition at line 12 of file texture_layer.h.

Constructor & Destructor Documentation

◆ TextureLayer()

flutter::TextureLayer::TextureLayer ( const DlPoint &  offset,
const DlSize &  size,
int64_t  texture_id,
bool  freeze,
DlImageSampling  sampling 
)

Definition at line 11 of file texture_layer.cc.

16 : offset_(offset),
17 size_(size),
18 texture_id_(texture_id),
19 freeze_(freeze),
20 sampling_(sampling) {}
flutter::size
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Definition switch_defs.h:241
texture_id
int64_t texture_id
Definition texture_registrar_unittests.cc:24

Member Function Documentation

◆ as_texture_layer()

const TextureLayer * flutter::TextureLayer::as_texture_layer ( ) const
inlineoverridevirtual

Reimplemented from flutter::Layer.

Definition at line 26 of file texture_layer.h.

26{ return this; }

◆ Diff()

void flutter::TextureLayer::Diff ( DiffContext *  context,
const Layer *  old_layer 
)
overridevirtual

Reimplemented from flutter::Layer.

Definition at line 22 of file texture_layer.cc.

22 {
23 DiffContext::AutoSubtreeRestore subtree(context);
24 if (!context->IsSubtreeDirty()) {
25 FML_DCHECK(old_layer);
26 auto prev = old_layer->as_texture_layer();
27 // TODO(knopp) It would be nice to be able to determine that a texture is
28 // dirty
29 context->MarkSubtreeDirty(context->GetOldLayerPaintRegion(prev));
30 }
31
32 // Make sure DiffContext knows there is a TextureLayer in this subtree.
33 // This prevents ContainerLayer from skipping TextureLayer diffing when
34 // TextureLayer is inside retained layer.
35 // See ContainerLayer::DiffChildren
36 // https://github.com/flutter/flutter/issues/92925
37 context->MarkSubtreeHasTextureLayer();
38 context->AddLayerBounds(DlRect::MakeOriginSize(offset_, size_));
39 context->SetLayerPaintRegion(this, context->CurrentSubtreeRegion());
40}
FML_DCHECK
#define FML_DCHECK(condition)
Definition logging.h:122
context
std::shared_ptr< ContextGLES > context
Definition render_pass_gles_unittests.cc:74
impeller::TRect< Scalar >::MakeOriginSize
static constexpr TRect MakeOriginSize(const TPoint< Type > &origin, const TSize< Type > &size)
Definition rect.h:144

References flutter::Layer::as_texture_layer(), context, FML_DCHECK, and impeller::TRect< Scalar >::MakeOriginSize().

◆ IsReplacing()

bool flutter::TextureLayer::IsReplacing ( DiffContext *  context,
const Layer *  layer 
) const
inlineoverridevirtual

Reimplemented from flutter::Layer.

Definition at line 20 of file texture_layer.h.

20 {
21 return layer->as_texture_layer() != nullptr;
22 }

References flutter::Layer::as_texture_layer().

◆ Paint()

void flutter::TextureLayer::Paint ( PaintContext &  context) const
overridevirtual

Implements flutter::Layer.

Definition at line 48 of file texture_layer.cc.

48 {
49 FML_DCHECK(needs_painting(context));
50
51 std::shared_ptr<Texture> texture =
52 context.texture_registry
53 ? context.texture_registry->GetTexture(texture_id_)
54 : nullptr;
55 if (!texture) {
56 TRACE_EVENT_INSTANT0("flutter", "null texture");
57 return;
58 }
59 DlPaint paint;
60 Texture::PaintContext ctx{
61 .canvas = context.canvas,
62 .gr_context = context.gr_context,
63 .aiks_context = context.aiks_context,
64 .paint = context.state_stack.fill(paint),
65 };
66 texture->Paint(ctx, paint_bounds(), freeze_, sampling_);
67}
flutter::Layer::needs_painting
bool needs_painting(PaintContext &context) const
Definition layer.h:218
flutter::Layer::paint_bounds
const DlRect & paint_bounds() const
Definition layer.h:196
texture
FlTexture * texture
Definition mock_texture_registrar.cc:24
std::DlPaint
flutter::DlPaint DlPaint
Definition display_list_testing.cc:51
TRACE_EVENT_INSTANT0
#define TRACE_EVENT_INSTANT0(category_group, name)
Definition trace_event.h:175

References flutter::Texture::PaintContext::canvas, context, FML_DCHECK, flutter::Layer::needs_painting(), flutter::Layer::paint_bounds(), texture, and TRACE_EVENT_INSTANT0.

◆ Preroll()

void flutter::TextureLayer::Preroll ( PrerollContext *  context)
overridevirtual

Implements flutter::Layer.

Definition at line 42 of file texture_layer.cc.

42 {
43 set_paint_bounds(DlRect::MakeOriginSize(offset_, size_));
44 context->has_texture_layer = true;
45 context->renderable_state_flags = LayerStateStack::kCallerCanApplyOpacity;
46}
flutter::Layer::set_paint_bounds
void set_paint_bounds(const DlRect &paint_bounds)
Definition layer.h:209
flutter::LayerStateStack::kCallerCanApplyOpacity
static constexpr int kCallerCanApplyOpacity
Definition layer_state_stack.h:226

References context, flutter::LayerStateStack::kCallerCanApplyOpacity, impeller::TRect< Scalar >::MakeOriginSize(), and flutter::Layer::set_paint_bounds().

The documentation for this class was generated from the following files: