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
|
/*
* Copyright (C) 2007 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_GRAPHIC_BUFFER_H
#define ANDROID_GRAPHIC_BUFFER_H
#include <stdint.h>
#include <sys/types.h>
#include <ui/android_native_buffer.h>
#include <ui/PixelFormat.h>
#include <ui/Rect.h>
#include <utils/Flattenable.h>
#include <pixelflinger/pixelflinger.h>
struct android_native_buffer_t;
namespace android {
class GraphicBufferMapper;
// ===========================================================================
// GraphicBuffer
// ===========================================================================
class GraphicBuffer
: public EGLNativeBase<
android_native_buffer_t,
GraphicBuffer,
LightRefBase<GraphicBuffer> >, public Flattenable
{
public:
enum {
USAGE_SW_READ_NEVER = GRALLOC_USAGE_SW_READ_NEVER,
USAGE_SW_READ_RARELY = GRALLOC_USAGE_SW_READ_RARELY,
USAGE_SW_READ_OFTEN = GRALLOC_USAGE_SW_READ_OFTEN,
USAGE_SW_READ_MASK = GRALLOC_USAGE_SW_READ_MASK,
USAGE_SW_WRITE_NEVER = GRALLOC_USAGE_SW_WRITE_NEVER,
USAGE_SW_WRITE_RARELY = GRALLOC_USAGE_SW_WRITE_RARELY,
USAGE_SW_WRITE_OFTEN = GRALLOC_USAGE_SW_WRITE_OFTEN,
USAGE_SW_WRITE_MASK = GRALLOC_USAGE_SW_WRITE_MASK,
USAGE_SOFTWARE_MASK = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,
USAGE_HW_TEXTURE = GRALLOC_USAGE_HW_TEXTURE,
USAGE_HW_RENDER = GRALLOC_USAGE_HW_RENDER,
USAGE_HW_2D = GRALLOC_USAGE_HW_2D,
USAGE_HW_MASK = GRALLOC_USAGE_HW_MASK
};
GraphicBuffer();
// creates w * h buffer
GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage);
// create a buffer from an existing handle
GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage,
uint32_t stride, native_handle_t* handle, bool keepOwnership);
// create a buffer from an existing android_native_buffer_t
GraphicBuffer(android_native_buffer_t* buffer, bool keepOwnership);
// return status
status_t initCheck() const;
uint32_t getWidth() const { return width; }
uint32_t getHeight() const { return height; }
uint32_t getStride() const { return stride; }
uint32_t getUsage() const { return usage; }
PixelFormat getPixelFormat() const { return format; }
Rect getBounds() const { return Rect(width, height); }
status_t reallocate(uint32_t w, uint32_t h, PixelFormat f, uint32_t usage);
status_t lock(uint32_t usage, void** vaddr);
status_t lock(uint32_t usage, const Rect& rect, void** vaddr);
status_t lock(GGLSurface* surface, uint32_t usage);
status_t unlock();
android_native_buffer_t* getNativeBuffer() const;
void setIndex(int index);
int getIndex() const;
private:
virtual ~GraphicBuffer();
enum {
ownNone = 0,
ownHandle = 1,
ownData = 2,
};
inline const GraphicBufferMapper& getBufferMapper() const {
return mBufferMapper;
}
inline GraphicBufferMapper& getBufferMapper() {
return mBufferMapper;
}
uint8_t mOwner;
private:
friend class Surface;
friend class BpSurface;
friend class BnSurface;
friend class LightRefBase<GraphicBuffer>;
GraphicBuffer(const GraphicBuffer& rhs);
GraphicBuffer& operator = (const GraphicBuffer& rhs);
const GraphicBuffer& operator = (const GraphicBuffer& rhs) const;
status_t initSize(uint32_t w, uint32_t h, PixelFormat format,
uint32_t usage);
void free_handle();
// Flattenable interface
size_t getFlattenedSize() const;
size_t getFdCount() const;
status_t flatten(void* buffer, size_t size,
int fds[], size_t count) const;
status_t unflatten(void const* buffer, size_t size,
int fds[], size_t count);
GraphicBufferMapper& mBufferMapper;
ssize_t mInitCheck;
int mIndex;
// If we're wrapping another buffer then this reference will make sure it
// doesn't get freed.
sp<android_native_buffer_t> mWrappedBuffer;
};
}; // namespace android
#endif // ANDROID_GRAPHIC_BUFFER_H
|
