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1 | 1 |
2 /* | 2 /* |
3 * Copyright 2010 The Android Open Source Project | 3 * Copyright 2010 The Android Open Source Project |
4 * | 4 * |
5 * Use of this source code is governed by a BSD-style license that can be | 5 * Use of this source code is governed by a BSD-style license that can be |
6 * found in the LICENSE file. | 6 * found in the LICENSE file. |
7 */ | 7 */ |
8 | 8 |
9 | 9 |
10 #include "SkData.h" | 10 #include "SkData.h" |
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58 } | 58 } |
59 | 59 |
60 // Hide all zlib impl details. | 60 // Hide all zlib impl details. |
61 struct SkDeflateWStream::Impl { | 61 struct SkDeflateWStream::Impl { |
62 SkWStream* fOut; | 62 SkWStream* fOut; |
63 unsigned char fInBuffer[SKDEFLATEWSTREAM_INPUT_BUFFER_SIZE]; | 63 unsigned char fInBuffer[SKDEFLATEWSTREAM_INPUT_BUFFER_SIZE]; |
64 size_t fInBufferIndex; | 64 size_t fInBufferIndex; |
65 z_stream fZStream; | 65 z_stream fZStream; |
66 }; | 66 }; |
67 | 67 |
68 SkDeflateWStream::SkDeflateWStream(SkWStream* out) | 68 SkDeflateWStream::SkDeflateWStream(SkWStream* out) : fImpl(new SkDeflateWStream:
:Impl) { |
69 : fImpl(SkNEW(SkDeflateWStream::Impl)) { | |
70 fImpl->fOut = out; | 69 fImpl->fOut = out; |
71 fImpl->fInBufferIndex = 0; | 70 fImpl->fInBufferIndex = 0; |
72 if (!fImpl->fOut) { | 71 if (!fImpl->fOut) { |
73 return; | 72 return; |
74 } | 73 } |
75 fImpl->fZStream.zalloc = &skia_alloc_func; | 74 fImpl->fZStream.zalloc = &skia_alloc_func; |
76 fImpl->fZStream.zfree = &skia_free_func; | 75 fImpl->fZStream.zfree = &skia_free_func; |
77 fImpl->fZStream.opaque = NULL; | 76 fImpl->fZStream.opaque = NULL; |
78 SkDEBUGCODE(int r =) deflateInit(&fImpl->fZStream, Z_DEFAULT_COMPRESSION); | 77 SkDEBUGCODE(int r =) deflateInit(&fImpl->fZStream, Z_DEFAULT_COMPRESSION); |
79 SkASSERT(Z_OK == r); | 78 SkASSERT(Z_OK == r); |
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111 fImpl->fInBuffer, fImpl->fInBufferIndex); | 110 fImpl->fInBuffer, fImpl->fInBufferIndex); |
112 fImpl->fInBufferIndex = 0; | 111 fImpl->fInBufferIndex = 0; |
113 } | 112 } |
114 } | 113 } |
115 return true; | 114 return true; |
116 } | 115 } |
117 | 116 |
118 size_t SkDeflateWStream::bytesWritten() const { | 117 size_t SkDeflateWStream::bytesWritten() const { |
119 return fImpl->fZStream.total_in + fImpl->fInBufferIndex; | 118 return fImpl->fZStream.total_in + fImpl->fInBufferIndex; |
120 } | 119 } |
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