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1 /* | |
2 * Copyright (C) 2007, 2008, 2009, 2010 Apple, Inc. All rights reserved. | |
3 * | |
4 * Redistribution and use in source and binary forms, with or without | |
5 * modification, are permitted provided that the following conditions | |
6 * are met: | |
7 * 1. Redistributions of source code must retain the above copyright | |
8 * notice, this list of conditions and the following disclaimer. | |
9 * 2. Redistributions in binary form must reproduce the above copyright | |
10 * notice, this list of conditions and the following disclaimer in the | |
11 * documentation and/or other materials provided with the distribution. | |
12 * | |
13 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
24 */ | |
25 | |
26 #ifndef QTPixelBuffer_h | |
27 #define QTPixelBuffer_h | |
28 | |
29 #ifdef QTMOVIEWIN_EXPORTS | |
30 #define QTMOVIEWIN_API __declspec(dllexport) | |
31 #else | |
32 #define QTMOVIEWIN_API __declspec(dllimport) | |
33 #endif | |
34 | |
35 #include <stdint.h> | |
36 | |
37 typedef struct __CVBuffer *CVBufferRef; | |
38 typedef CVBufferRef CVPixelBufferRef; | |
39 typedef struct CGImage* CGImageRef; | |
40 typedef int32_t CVReturn; | |
41 typedef const struct __CFDictionary * CFDictionaryRef; | |
42 | |
43 // QTPixelBuffer wraps QuickTime's implementation of CVPixelBuffer, so its funct
ions are | |
44 // safe to call within WebKit. | |
45 class QTMOVIEWIN_API QTPixelBuffer { | |
46 public: | |
47 enum Type { ConfigureForCGImage, ConfigureForCAImageQueue }; | |
48 static CFDictionaryRef createPixelBufferAttributesDictionary(Type); | |
49 | |
50 QTPixelBuffer(); | |
51 QTPixelBuffer(const QTPixelBuffer&); | |
52 QTPixelBuffer(CVPixelBufferRef); | |
53 QTPixelBuffer& operator=(const QTPixelBuffer&); | |
54 ~QTPixelBuffer(); | |
55 | |
56 void set(CVPixelBufferRef); | |
57 CVPixelBufferRef pixelBufferRef(); | |
58 void adopt(CVPixelBufferRef); | |
59 void clear(); | |
60 | |
61 CVReturn lockBaseAddress(); | |
62 CVReturn unlockBaseAddress(); | |
63 void* baseAddress(); | |
64 | |
65 size_t width() const; | |
66 size_t height() const; | |
67 unsigned long pixelFormatType() const; | |
68 bool pixelFormatIs32ARGB() const; | |
69 bool pixelFormatIs32BGRA() const; | |
70 size_t bytesPerRow() const; | |
71 size_t dataSize() const; | |
72 | |
73 bool isPlanar() const; | |
74 size_t planeCount() const; | |
75 size_t widthOfPlane(size_t) const; | |
76 size_t heightOfPlane(size_t) const; | |
77 void* baseAddressOfPlane(size_t) const; | |
78 size_t bytesPerRowOfPlane(size_t) const; | |
79 | |
80 void getExtendedPixels(size_t* left, size_t* right, size_t* top, size_t* bot
tom) const; | |
81 CFDictionaryRef attachments() const; | |
82 | |
83 // Generic CFRetain/CFRelease callbacks | |
84 static void releaseCallback(void* refcon); | |
85 static void retainCallback(void* refcon); | |
86 | |
87 // CAImageQueue callbacks | |
88 static void imageQueueReleaseCallback(unsigned int type, uint64_t id, void*
refcon); | |
89 | |
90 // CGDataProvider callbacks | |
91 static void dataProviderReleaseBytePointerCallback(void* refcon, const void*
pointer); | |
92 static const void* dataProviderGetBytePointerCallback(void* refcon); | |
93 static size_t dataProviderGetBytesAtPositionCallback(void* refcon, void* buf
fer, size_t position, size_t count); | |
94 static void dataProviderReleaseInfoCallback(void* refcon); | |
95 | |
96 private: | |
97 CVPixelBufferRef m_pixelBuffer; | |
98 }; | |
99 | |
100 #endif | |
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