| Flutter Impeller |

cover_geometry.h
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1 // Copyright 2013 The Flutter Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4
5 #pragma once
6
7 #include "impeller/entity/geometry/geometry.h"
8
9 namespace impeller {
10
11 /// @brief A geometry that implements "drawPaint" like behavior by covering
12 /// the entire render pass area.
13 class CoverGeometry : public Geometry {
14 public:
15 CoverGeometry();
16
17 ~CoverGeometry();
18
19 // |Geometry|
20 bool CoversArea(const Matrix& transform, const Rect& rect) const override;
21
22 private:
23 // |Geometry|
24 GeometryResult GetPositionBuffer(const ContentContext& renderer,
25 const Entity& entity,
26 RenderPass& pass) override;
27
28 // |Geometry|
29 GeometryVertexType GetVertexType() const override;
30
31 // |Geometry|
32 std::optional<Rect> GetCoverage(const Matrix& transform) const override;
33
34 // |Geometry|
35 GeometryResult GetPositionUVBuffer(Rect texture_coverage,
36 Matrix effect_transform,
37 const ContentContext& renderer,
38 const Entity& entity,
39 RenderPass& pass) override;
40
41 FML_DISALLOW_COPY_AND_ASSIGN(CoverGeometry);
42 };
43
44 } // namespace impeller
impeller::CoverGeometry::~CoverGeometry
~CoverGeometry()
impeller::GeometryVertexType
GeometryVertexType
Definition: geometry.h:25
impeller::CoverGeometry::CoversArea
bool CoversArea(const Matrix &transform, const Rect &rect) const override
Determines if this geometry, transformed by the given transform, will completely cover all surface ar...
Definition: cover_geometry.cc:60
impeller::Entity
Definition: entity.h:21
geometry.h
impeller::GeometryResult
Definition: geometry.h:18
impeller::CoverGeometry::CoverGeometry
CoverGeometry()
impeller::RenderPass
Render passes encode render commands directed as one specific render target into an underlying comman...
Definition: render_pass.h:27
impeller::Geometry
Definition: geometry.h:54
impeller::CoverGeometry
A geometry that implements "drawPaint" like behavior by covering the entire render pass area.
Definition: cover_geometry.h:13
impeller
Definition: aiks_context.cc:10
impeller::ContentContext
Definition: content_context.h:344
impeller::TRect< Scalar >
impeller::Matrix
A 4x4 matrix using column-major storage.
Definition: matrix.h:36