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

Issue 23453031: Rewrite SkTRegistry to take any trivially-copyable type. (Closed) Base URL: https://skia.googlecode.com/svn/trunk
Patch Set: reed+scroggo Created 7 years, 3 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 "SkStreamHelpers.h"
16 #include "SkTDArray.h" 16 #include "SkTDArray.h"
17 #include "SkTRegistry.h"
18 17
19 class SkBMPImageDecoder : public SkImageDecoder { 18 class SkBMPImageDecoder : public SkImageDecoder {
20 public: 19 public:
21 SkBMPImageDecoder() {} 20 SkBMPImageDecoder() {}
22 21
23 virtual Format getFormat() const SK_OVERRIDE { 22 virtual Format getFormat() const SK_OVERRIDE {
24 return kBMP_Format; 23 return kBMP_Format;
25 } 24 }
26 25
27 protected: 26 protected:
(...skipping 17 matching lines...) Expand all
45 !memcmp(buffer, kBmpMagic, sizeof(kBmpMagic)); 44 !memcmp(buffer, kBmpMagic, sizeof(kBmpMagic));
46 } 45 }
47 46
48 static SkImageDecoder* sk_libbmp_dfactory(SkStream* stream) { 47 static SkImageDecoder* sk_libbmp_dfactory(SkStream* stream) {
49 if (is_bmp(stream)) { 48 if (is_bmp(stream)) {
50 return SkNEW(SkBMPImageDecoder); 49 return SkNEW(SkBMPImageDecoder);
51 } 50 }
52 return NULL; 51 return NULL;
53 } 52 }
54 53
55 static SkTRegistry<SkImageDecoder*, SkStream*> gReg(sk_libbmp_dfactory); 54 static SkImageDecoder_DecodeReg gReg(sk_libbmp_dfactory);
56 55
57 static SkImageDecoder::Format get_format_bmp(SkStream* stream) { 56 static SkImageDecoder::Format get_format_bmp(SkStream* stream) {
58 if (is_bmp(stream)) { 57 if (is_bmp(stream)) {
59 return SkImageDecoder::kBMP_Format; 58 return SkImageDecoder::kBMP_Format;
60 } 59 }
61 return SkImageDecoder::kUnknown_Format; 60 return SkImageDecoder::kUnknown_Format;
62 } 61 }
63 62
64 static SkTRegistry<SkImageDecoder::Format, SkStream*> gFormatReg(get_format_bmp) ; 63 static SkImageDecoder_FormatReg gFormatReg(get_format_bmp);
65 64
66 /////////////////////////////////////////////////////////////////////////////// 65 ///////////////////////////////////////////////////////////////////////////////
67 66
68 class SkBmpDecoderCallback : public image_codec::BmpDecoderCallback { 67 class SkBmpDecoderCallback : public image_codec::BmpDecoderCallback {
69 public: 68 public:
70 // we don't copy the bitmap, just remember the pointer 69 // we don't copy the bitmap, just remember the pointer
71 SkBmpDecoderCallback(bool justBounds) : fJustBounds(justBounds) {} 70 SkBmpDecoderCallback(bool justBounds) : fJustBounds(justBounds) {}
72 71
73 // override from BmpDecoderCallback 72 // override from BmpDecoderCallback
74 virtual uint8* SetSize(int width, int height) { 73 virtual uint8* SetSize(int width, int height) {
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155 const int dstHeight = sampler.scaledHeight(); 154 const int dstHeight = sampler.scaledHeight();
156 const uint8_t* srcRow = callback.rgb(); 155 const uint8_t* srcRow = callback.rgb();
157 156
158 srcRow += sampler.srcY0() * srcRowBytes; 157 srcRow += sampler.srcY0() * srcRowBytes;
159 for (int y = 0; y < dstHeight; y++) { 158 for (int y = 0; y < dstHeight; y++) {
160 sampler.next(srcRow); 159 sampler.next(srcRow);
161 srcRow += sampler.srcDY() * srcRowBytes; 160 srcRow += sampler.srcDY() * srcRowBytes;
162 } 161 }
163 return true; 162 return true;
164 } 163 }
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