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
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
|
/*
* Copyright (C) 2014 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 <SkColorFilter.h>
#include <SkImage.h>
#include <SkMatrix.h>
#include <android/hardware_buffer.h>
#include <android/surface_texture.h>
#include <cutils/compiler.h>
#include <utils/Errors.h>
#include <EGL/egl.h>
#include <EGL/eglext.h>
#include <map>
#include <memory>
#include "Layer.h"
#include "Rect.h"
#include "renderstate/RenderState.h"
namespace android {
namespace uirenderer {
class AutoBackendTextureRelease;
class RenderState;
typedef std::unique_ptr<ASurfaceTexture, decltype(&ASurfaceTexture_release)> AutoTextureRelease;
// Container to hold the properties a layer should be set to at the start
// of a render pass
class DeferredLayerUpdater : public VirtualLightRefBase, public IGpuContextCallback {
public:
// Note that DeferredLayerUpdater assumes it is taking ownership of the layer
// and will not call incrementRef on it as a result.
explicit DeferredLayerUpdater(RenderState& renderState);
~DeferredLayerUpdater();
bool setSize(int width, int height) {
if (mWidth != width || mHeight != height) {
mWidth = width;
mHeight = height;
return true;
}
return false;
}
int getWidth() { return mWidth; }
int getHeight() { return mHeight; }
bool setBlend(bool blend) {
if (blend != mBlend) {
mBlend = blend;
return true;
}
return false;
}
void setSurfaceTexture(AutoTextureRelease&& consumer);
void updateTexImage() { mUpdateTexImage = true; }
void setTransform(const SkMatrix* matrix) {
delete mTransform;
mTransform = matrix ? new SkMatrix(*matrix) : nullptr;
}
SkMatrix* getTransform() { return mTransform; }
void setPaint(const SkPaint* paint);
void apply();
Layer* backingLayer() { return mLayer; }
void detachSurfaceTexture();
void updateLayer(bool forceFilter, const sk_sp<SkImage>& layerImage, const uint32_t transform,
SkRect currentCrop, float maxLuminanceNits = -1.f);
void destroyLayer();
protected:
void onContextDestroyed() override;
private:
/**
* ImageSlot contains the information and object references that
* DeferredLayerUpdater maintains about a slot. Slot id comes from
* ASurfaceTexture_dequeueBuffer. Usually there are at most 3 slots active at a time.
*/
class ImageSlot {
public:
~ImageSlot() {}
sk_sp<SkImage> createIfNeeded(AHardwareBuffer* buffer, android_dataspace dataspace,
bool forceCreate, GrDirectContext* context);
void releaseQueueOwnership(GrDirectContext* context);
void clear(GrDirectContext* context);
private:
// the dataspace associated with the current image
android_dataspace mDataspace = HAL_DATASPACE_UNKNOWN;
AHardwareBuffer* mBuffer = nullptr;
/**
* mTextureRelease may outlive DeferredLayerUpdater, if the last ref is held by an SkImage.
* DeferredLayerUpdater holds one ref to mTextureRelease, which is decremented by "clear".
*/
AutoBackendTextureRelease* mTextureRelease = nullptr;
};
static status_t createReleaseFence(bool useFenceSync, EGLSyncKHR* eglFence, EGLDisplay* display,
int* releaseFence, void* handle);
static status_t fenceWait(int fence, void* handle);
/**
* DeferredLayerUpdater stores the SkImages that have been allocated by the BufferQueue
* for each buffer slot.
*/
std::map<int, ImageSlot> mImageSlots;
RenderState& mRenderState;
// Generic properties
int mWidth = 0;
int mHeight = 0;
bool mBlend = false;
sk_sp<SkColorFilter> mColorFilter;
int mAlpha = 255;
SkBlendMode mMode = SkBlendMode::kSrcOver;
AutoTextureRelease mSurfaceTexture;
SkMatrix* mTransform;
bool mGLContextAttached;
bool mUpdateTexImage;
int mCurrentSlot = -1;
Layer* mLayer;
};
} /* namespace uirenderer */
} /* namespace android */
|
