1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
|
/*
* Copyright (C) 2020 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#pragma once
#include <hwui/Bitmap.h>
#include <SkBitmap.h>
#include <SkCanvas.h>
#include "CanvasOps.h"
#include <experimental/type_traits>
#include <variant>
namespace android::uirenderer {
class CanvasOpBuffer;
void rasterizeCanvasBuffer(const CanvasOpBuffer& source, SkCanvas* destination);
class ImmediateModeRasterizer {
public:
explicit ImmediateModeRasterizer(std::unique_ptr<SkCanvas>&& canvas) {
mCanvas = canvas.get();
mOwnership = std::move(canvas);
}
explicit ImmediateModeRasterizer(std::shared_ptr<SkCanvas> canvas) {
mCanvas = canvas.get();
mOwnership = std::move(canvas);
}
explicit ImmediateModeRasterizer(Bitmap& bitmap) {
mCanvas = &(mOwnership.emplace<SkCanvas>(bitmap.getSkBitmap()));
}
template <CanvasOpType T>
void draw(const CanvasOp<T>& op) {
if constexpr (CanvasOpTraits::can_draw<CanvasOp<T>>) {
op.draw(mCanvas);
}
}
private:
SkCanvas* mCanvas;
// Just here to keep mCanvas alive. Thankfully we never need to actually look inside this...
std::variant<SkCanvas, std::shared_ptr<SkCanvas>, std::unique_ptr<SkCanvas>> mOwnership;
};
} // namespace android::uirenderer
|
