media/omx-plugin/include/ics/ui/GraphicBuffer.h@b8a032363ba2
media/omx-plugin/include/ics/ui/GraphicBuffer.h
Thu, 22 Jan 2015 13:21:57 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Thu, 22 Jan 2015 13:21:57 +0100
- branch
- TOR_BUG_9701
- changeset 15
- b8a032363ba2
- permissions
- -rw-r--r--
Incorporate requested changes from Mozilla in review:
https://bugzilla.mozilla.org/show_bug.cgi?id=1123480#c6
1 /*
2 * Copyright (C) 2007 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
17 #ifndef ANDROID_GRAPHIC_BUFFER_H
18 #define ANDROID_GRAPHIC_BUFFER_H
20 #include <stdint.h>
21 #include <sys/types.h>
23 #include <ui/android_native_buffer.h>
24 #include <ui/PixelFormat.h>
25 #include <ui/Rect.h>
26 #include <utils/Flattenable.h>
27 #include <pixelflinger/pixelflinger.h>
29 struct ANativeWindowBuffer;
31 namespace android {
33 class GraphicBufferMapper;
35 // ===========================================================================
36 // GraphicBuffer
37 // ===========================================================================
39 class GraphicBuffer
40 : public EGLNativeBase<
41 ANativeWindowBuffer,
42 GraphicBuffer,
43 LightRefBase<GraphicBuffer> >, public Flattenable
44 {
45 public:
47 enum {
48 USAGE_SW_READ_NEVER = GRALLOC_USAGE_SW_READ_NEVER,
49 USAGE_SW_READ_RARELY = GRALLOC_USAGE_SW_READ_RARELY,
50 USAGE_SW_READ_OFTEN = GRALLOC_USAGE_SW_READ_OFTEN,
51 USAGE_SW_READ_MASK = GRALLOC_USAGE_SW_READ_MASK,
53 USAGE_SW_WRITE_NEVER = GRALLOC_USAGE_SW_WRITE_NEVER,
54 USAGE_SW_WRITE_RARELY = GRALLOC_USAGE_SW_WRITE_RARELY,
55 USAGE_SW_WRITE_OFTEN = GRALLOC_USAGE_SW_WRITE_OFTEN,
56 USAGE_SW_WRITE_MASK = GRALLOC_USAGE_SW_WRITE_MASK,
58 USAGE_SOFTWARE_MASK = USAGE_SW_READ_MASK|USAGE_SW_WRITE_MASK,
60 USAGE_PROTECTED = GRALLOC_USAGE_PROTECTED,
62 USAGE_HW_TEXTURE = GRALLOC_USAGE_HW_TEXTURE,
63 USAGE_HW_RENDER = GRALLOC_USAGE_HW_RENDER,
64 USAGE_HW_2D = GRALLOC_USAGE_HW_2D,
65 USAGE_HW_COMPOSER = GRALLOC_USAGE_HW_COMPOSER,
66 USAGE_HW_VIDEO_ENCODER = GRALLOC_USAGE_HW_VIDEO_ENCODER,
67 USAGE_HW_MASK = GRALLOC_USAGE_HW_MASK
68 };
70 GraphicBuffer();
72 // creates w * h buffer
73 GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage);
75 // create a buffer from an existing handle
76 GraphicBuffer(uint32_t w, uint32_t h, PixelFormat format, uint32_t usage,
77 uint32_t stride, native_handle_t* handle, bool keepOwnership);
79 // create a buffer from an existing ANativeWindowBuffer
80 GraphicBuffer(ANativeWindowBuffer* buffer, bool keepOwnership);
82 // return status
83 status_t initCheck() const;
85 uint32_t getWidth() const { return width; }
86 uint32_t getHeight() const { return height; }
87 uint32_t getStride() const { return stride; }
88 uint32_t getUsage() const { return usage; }
89 PixelFormat getPixelFormat() const { return format; }
90 Rect getBounds() const { return Rect(width, height); }
92 status_t reallocate(uint32_t w, uint32_t h, PixelFormat f, uint32_t usage);
94 status_t lock(uint32_t usage, void** vaddr);
95 status_t lock(uint32_t usage, const Rect& rect, void** vaddr);
96 status_t lock(GGLSurface* surface, uint32_t usage);
97 status_t unlock();
99 ANativeWindowBuffer* getNativeBuffer() const;
101 void setIndex(int index);
102 int getIndex() const;
104 // for debugging
105 static void dumpAllocationsToSystemLog();
107 private:
108 virtual ~GraphicBuffer();
110 enum {
111 ownNone = 0,
112 ownHandle = 1,
113 ownData = 2,
114 };
116 inline const GraphicBufferMapper& getBufferMapper() const {
117 return mBufferMapper;
118 }
119 inline GraphicBufferMapper& getBufferMapper() {
120 return mBufferMapper;
121 }
122 uint8_t mOwner;
124 private:
125 friend class Surface;
126 friend class BpSurface;
127 friend class BnSurface;
128 friend class SurfaceTextureClient;
129 friend class LightRefBase<GraphicBuffer>;
130 GraphicBuffer(const GraphicBuffer& rhs);
131 GraphicBuffer& operator = (const GraphicBuffer& rhs);
132 const GraphicBuffer& operator = (const GraphicBuffer& rhs) const;
134 status_t initSize(uint32_t w, uint32_t h, PixelFormat format,
135 uint32_t usage);
137 void free_handle();
139 // Flattenable interface
140 size_t getFlattenedSize() const;
141 size_t getFdCount() const;
142 status_t flatten(void* buffer, size_t size,
143 int fds[], size_t count) const;
144 status_t unflatten(void const* buffer, size_t size,
145 int fds[], size_t count);
148 GraphicBufferMapper& mBufferMapper;
149 ssize_t mInitCheck;
150 int mIndex;
152 // If we're wrapping another buffer then this reference will make sure it
153 // doesn't get freed.
154 sp<ANativeWindowBuffer> mWrappedBuffer;
155 };
157 }; // namespace android
159 #endif // ANDROID_GRAPHIC_BUFFER_H
