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
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
|
/*
* Copyright (C) 2013 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.
*/
#ifndef ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
#define ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
#include <utils/Errors.h>
#include <utils/LinearAllocator.h>
#include <utils/Vector.h>
#include <utils/TinyHashMap.h>
#include "Matrix.h"
#include "OpenGLRenderer.h"
#include "Rect.h"
class SkBitmap;
namespace android {
namespace uirenderer {
class ClipOp;
class DrawOp;
class SaveOp;
class SaveLayerOp;
class StateOp;
class DeferredDisplayState;
class Batch;
class DrawBatch;
class MergingDrawBatch;
typedef const void* mergeid_t;
class DeferredDisplayState {
public:
/** static void* operator new(size_t size); PURPOSELY OMITTED **/
static void* operator new(size_t size, LinearAllocator& allocator) {
return allocator.alloc(size);
}
// global op bounds, mapped by mMatrix to be in screen space coordinates, clipped
Rect mBounds;
// the below are set and used by the OpenGLRenderer at record and deferred playback
bool mClipValid;
Rect mClip;
int mClipSideFlags; // specifies which sides of the bounds are clipped, unclipped if cleared
bool mClipped;
mat4 mMatrix;
float mAlpha;
const RoundRectClipState* mRoundRectClipState;
const ProjectionPathMask* mProjectionPathMask;
};
class OpStatePair {
public:
OpStatePair()
: op(nullptr), state(nullptr) {}
OpStatePair(DrawOp* newOp, const DeferredDisplayState* newState)
: op(newOp), state(newState) {}
OpStatePair(const OpStatePair& other)
: op(other.op), state(other.state) {}
DrawOp* op;
const DeferredDisplayState* state;
};
class DeferredDisplayList {
friend struct DeferStateStruct; // used to give access to allocator
public:
DeferredDisplayList(const Rect& bounds, bool avoidOverdraw = true) :
mBounds(bounds), mAvoidOverdraw(avoidOverdraw) {
clear();
}
~DeferredDisplayList() { clear(); }
enum OpBatchId {
kOpBatch_None = 0, // Don't batch
kOpBatch_Bitmap,
kOpBatch_Patch,
kOpBatch_AlphaVertices,
kOpBatch_Vertices,
kOpBatch_AlphaMaskTexture,
kOpBatch_Text,
kOpBatch_ColorText,
kOpBatch_Count, // Add other batch ids before this
};
bool isEmpty() { return mBatches.isEmpty(); }
/**
* Plays back all of the draw ops recorded into batches to the renderer.
* Adjusts the state of the renderer as necessary, and restores it when complete
*/
void flush(OpenGLRenderer& renderer, Rect& dirty);
void addClip(OpenGLRenderer& renderer, ClipOp* op);
void addSaveLayer(OpenGLRenderer& renderer, SaveLayerOp* op, int newSaveCount);
void addSave(OpenGLRenderer& renderer, SaveOp* op, int newSaveCount);
void addRestoreToCount(OpenGLRenderer& renderer, StateOp* op, int newSaveCount);
/**
* Add a draw op into the DeferredDisplayList, reordering as needed (for performance) if
* disallowReorder is false, respecting draw order when overlaps occur.
*/
void addDrawOp(OpenGLRenderer& renderer, DrawOp* op);
private:
DeferredDisplayList(const DeferredDisplayList& other); // disallow copy
DeferredDisplayState* createState() {
return new (mAllocator) DeferredDisplayState();
}
void tryRecycleState(DeferredDisplayState* state) {
mAllocator.rewindIfLastAlloc(state);
}
/**
* Resets the batching back-pointers, creating a barrier in the operation stream so that no ops
* added in the future will be inserted into a batch that already exist.
*/
void resetBatchingState();
void clear();
void storeStateOpBarrier(OpenGLRenderer& renderer, StateOp* op);
void storeRestoreToCountBarrier(OpenGLRenderer& renderer, StateOp* op, int newSaveCount);
bool recordingComplexClip() const { return mComplexClipStackStart >= 0; }
int getStateOpDeferFlags() const;
int getDrawOpDeferFlags() const;
void discardDrawingBatches(const unsigned int maxIndex);
// layer space bounds of rendering
Rect mBounds;
const bool mAvoidOverdraw;
/**
* At defer time, stores the *defer time* savecount of save/saveLayer ops that were deferred, so
* that when an associated restoreToCount is deferred, it can be recorded as a
* RestoreToCountBatch
*/
Vector<int> mSaveStack;
int mComplexClipStackStart;
Vector<Batch*> mBatches;
// Maps batch ids to the most recent *non-merging* batch of that id
Batch* mBatchLookup[kOpBatch_Count];
// Points to the index after the most recent barrier
int mEarliestBatchIndex;
// Points to the first index that may contain a pure drawing batch
int mEarliestUnclearedIndex;
/**
* Maps the mergeid_t returned by an op's getMergeId() to the most recently seen
* MergingDrawBatch of that id. These ids are unique per draw type and guaranteed to not
* collide, which avoids the need to resolve mergeid collisions.
*/
TinyHashMap<mergeid_t, DrawBatch*> mMergingBatches[kOpBatch_Count];
LinearAllocator mAllocator;
};
/**
* Struct containing information that instructs the defer
*/
struct DeferInfo {
public:
DeferInfo() :
batchId(DeferredDisplayList::kOpBatch_None),
mergeId((mergeid_t) -1),
mergeable(false),
opaqueOverBounds(false) {
};
int batchId;
mergeid_t mergeId;
bool mergeable;
bool opaqueOverBounds; // opaque over bounds in DeferredDisplayState - can skip ops below
};
}; // namespace uirenderer
}; // namespace android
#endif // ANDROID_HWUI_DEFERRED_DISPLAY_LIST_H
|
