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Side by Side Diff: src/images/SkImageDecoder_libbmp.cpp

Issue 340783013: Switch SkPDFStream's internal storage from SkStream to SkData (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: rebase Created 6 years, 5 months ago
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1 1
2 /* 2 /*
3 * Copyright 2007 The Android Open Source Project 3 * Copyright 2007 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 "bmpdecoderhelper.h" 10 #include "bmpdecoderhelper.h"
11 #include "SkColorPriv.h" 11 #include "SkColorPriv.h"
12 #include "SkImageDecoder.h" 12 #include "SkImageDecoder.h"
13 #include "SkScaledBitmapSampler.h" 13 #include "SkScaledBitmapSampler.h"
14 #include "SkStream.h" 14 #include "SkStream.h"
15 #include "SkStreamHelpers.h" 15 #include "SkStreamPriv.h"
16 #include "SkTDArray.h" 16 #include "SkTDArray.h"
17 17
18 class SkBMPImageDecoder : public SkImageDecoder { 18 class SkBMPImageDecoder : public SkImageDecoder {
19 public: 19 public:
20 SkBMPImageDecoder() {} 20 SkBMPImageDecoder() {}
21 21
22 virtual Format getFormat() const SK_OVERRIDE { 22 virtual Format getFormat() const SK_OVERRIDE {
23 return kBMP_Format; 23 return kBMP_Format;
24 } 24 }
25 25
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92 bool fJustBounds; 92 bool fJustBounds;
93 }; 93 };
94 94
95 bool SkBMPImageDecoder::onDecode(SkStream* stream, SkBitmap* bm, Mode mode) { 95 bool SkBMPImageDecoder::onDecode(SkStream* stream, SkBitmap* bm, Mode mode) {
96 // First read the entire stream, so that all of the data can be passed to 96 // First read the entire stream, so that all of the data can be passed to
97 // the BmpDecoderHelper. 97 // the BmpDecoderHelper.
98 98
99 // Allocated space used to hold the data. 99 // Allocated space used to hold the data.
100 SkAutoMalloc storage; 100 SkAutoMalloc storage;
101 // Byte length of all of the data. 101 // Byte length of all of the data.
102 const size_t length = CopyStreamToStorage(&storage, stream); 102 const size_t length = SkCopyStreamToStorage(&storage, stream);
103 if (0 == length) { 103 if (0 == length) {
104 return 0; 104 return 0;
105 } 105 }
106 106
107 const bool justBounds = SkImageDecoder::kDecodeBounds_Mode == mode; 107 const bool justBounds = SkImageDecoder::kDecodeBounds_Mode == mode;
108 SkBmpDecoderCallback callback(justBounds); 108 SkBmpDecoderCallback callback(justBounds);
109 109
110 // Now decode the BMP into callback's rgb() array [r,g,b, r,g,b, ...] 110 // Now decode the BMP into callback's rgb() array [r,g,b, r,g,b, ...]
111 { 111 {
112 image_codec::BmpDecoderHelper helper; 112 image_codec::BmpDecoderHelper helper;
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153 const int dstHeight = sampler.scaledHeight(); 153 const int dstHeight = sampler.scaledHeight();
154 const uint8_t* srcRow = callback.rgb(); 154 const uint8_t* srcRow = callback.rgb();
155 155
156 srcRow += sampler.srcY0() * srcRowBytes; 156 srcRow += sampler.srcY0() * srcRowBytes;
157 for (int y = 0; y < dstHeight; y++) { 157 for (int y = 0; y < dstHeight; y++) {
158 sampler.next(srcRow); 158 sampler.next(srcRow);
159 srcRow += sampler.srcDY() * srcRowBytes; 159 srcRow += sampler.srcDY() * srcRowBytes;
160 } 160 }
161 return true; 161 return true;
162 } 162 }
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