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1 /* | 1 /* |
2 * Copyright 2012 Google Inc. | 2 * Copyright 2012 Google Inc. |
3 * | 3 * |
4 * Use of this source code is governed by a BSD-style license that can be | 4 * Use of this source code is governed by a BSD-style license that can be |
5 * found in the LICENSE file. | 5 * found in the LICENSE file. |
6 */ | 6 */ |
7 | 7 |
8 #include "SkImage_Base.h" | 8 #include "SkImage_Base.h" |
9 #include "SkImagePriv.h" | 9 #include "SkImagePriv.h" |
10 #include "SkBitmap.h" | 10 #include "SkBitmap.h" |
11 #include "SkCanvas.h" | 11 #include "SkCanvas.h" |
12 #include "SkData.h" | 12 #include "SkData.h" |
13 #include "SkDecodingImageGenerator.h" | 13 #include "SkDecodingImageGenerator.h" |
14 #include "SkMallocPixelRef.h" | 14 #include "SkMallocPixelRef.h" |
15 | 15 |
16 class SkImage_Raster : public SkImage_Base { | 16 class SkImage_Raster : public SkImage_Base { |
17 public: | 17 public: |
18 static bool ValidArgs(const Info& info, size_t rowBytes) { | 18 static bool ValidArgs(const Info& info, size_t rowBytes) { |
19 const int maxDimension = SK_MaxS32 >> 2; | 19 const int maxDimension = SK_MaxS32 >> 2; |
20 const size_t kMaxPixelByteSize = SK_MaxS32; | 20 const size_t kMaxPixelByteSize = SK_MaxS32; |
21 | 21 |
22 if (info.fWidth < 0 || info.fHeight < 0) { | 22 if (info.width() < 0 || info.height() < 0) { |
23 return false; | 23 return false; |
24 } | 24 } |
25 if (info.fWidth > maxDimension || info.fHeight > maxDimension) { | 25 if (info.width() > maxDimension || info.height() > maxDimension) { |
26 return false; | 26 return false; |
27 } | 27 } |
28 if ((unsigned)info.fColorType > (unsigned)kLastEnum_SkColorType) { | 28 if ((unsigned)info.colorType() > (unsigned)kLastEnum_SkColorType) { |
29 return false; | 29 return false; |
30 } | 30 } |
31 if ((unsigned)info.fAlphaType > (unsigned)kLastEnum_SkAlphaType) { | 31 if ((unsigned)info.alphaType() > (unsigned)kLastEnum_SkAlphaType) { |
32 return false; | 32 return false; |
33 } | 33 } |
34 | 34 |
35 if (kUnknown_SkColorType == info.colorType()) { | 35 if (kUnknown_SkColorType == info.colorType()) { |
36 return false; | 36 return false; |
37 } | 37 } |
38 | 38 |
39 // TODO: check colorspace | 39 // TODO: check colorspace |
40 | 40 |
41 if (rowBytes < SkImageMinRowBytes(info)) { | 41 if (rowBytes < SkImageMinRowBytes(info)) { |
42 return false; | 42 return false; |
43 } | 43 } |
44 | 44 |
45 int64_t size = (int64_t)info.fHeight * rowBytes; | 45 int64_t size = (int64_t)info.height() * rowBytes; |
46 if (size > (int64_t)kMaxPixelByteSize) { | 46 if (size > (int64_t)kMaxPixelByteSize) { |
47 return false; | 47 return false; |
48 } | 48 } |
49 return true; | 49 return true; |
50 } | 50 } |
51 | 51 |
52 static SkImage* NewEmpty(); | 52 static SkImage* NewEmpty(); |
53 | 53 |
54 SkImage_Raster(const SkImageInfo&, SkData*, size_t rb); | 54 SkImage_Raster(const SkImageInfo&, SkData*, size_t rb); |
55 virtual ~SkImage_Raster(); | 55 virtual ~SkImage_Raster(); |
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95 gEmpty->ref(); | 95 gEmpty->ref(); |
96 return gEmpty; | 96 return gEmpty; |
97 } | 97 } |
98 | 98 |
99 static void release_data(void* addr, void* context) { | 99 static void release_data(void* addr, void* context) { |
100 SkData* data = static_cast<SkData*>(context); | 100 SkData* data = static_cast<SkData*>(context); |
101 data->unref(); | 101 data->unref(); |
102 } | 102 } |
103 | 103 |
104 SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes) | 104 SkImage_Raster::SkImage_Raster(const Info& info, SkData* data, size_t rowBytes) |
105 : INHERITED(info.fWidth, info.fHeight) | 105 : INHERITED(info.width(), info.height()) |
106 { | 106 { |
107 data->ref(); | 107 data->ref(); |
108 void* addr = const_cast<void*>(data->data()); | 108 void* addr = const_cast<void*>(data->data()); |
109 SkColorTable* ctable = NULL; | 109 SkColorTable* ctable = NULL; |
110 | 110 |
111 fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data); | 111 fBitmap.installPixels(info, addr, rowBytes, ctable, release_data, data); |
112 fBitmap.setImmutable(); | 112 fBitmap.setImmutable(); |
113 fBitmap.lockPixels(); | 113 fBitmap.lockPixels(); |
114 } | 114 } |
115 | 115 |
116 SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, size_t rowBytes
) | 116 SkImage_Raster::SkImage_Raster(const Info& info, SkPixelRef* pr, size_t rowBytes
) |
117 : INHERITED(info.fWidth, info.fHeight) | 117 : INHERITED(info.width(), info.height()) |
118 { | 118 { |
119 fBitmap.setInfo(info, rowBytes); | 119 fBitmap.setInfo(info, rowBytes); |
120 fBitmap.setPixelRef(pr); | 120 fBitmap.setPixelRef(pr); |
121 fBitmap.lockPixels(); | 121 fBitmap.lockPixels(); |
122 } | 122 } |
123 | 123 |
124 SkImage_Raster::~SkImage_Raster() {} | 124 SkImage_Raster::~SkImage_Raster() {} |
125 | 125 |
126 SkShader* SkImage_Raster::onNewShader(SkShader::TileMode tileX, SkShader::TileMo
de tileY, | 126 SkShader* SkImage_Raster::onNewShader(SkShader::TileMode tileX, SkShader::TileMo
de tileY, |
127 const SkMatrix* localMatrix) const { | 127 const SkMatrix* localMatrix) const { |
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163 *dst = fBitmap; | 163 *dst = fBitmap; |
164 return true; | 164 return true; |
165 } | 165 } |
166 | 166 |
167 /////////////////////////////////////////////////////////////////////////////// | 167 /////////////////////////////////////////////////////////////////////////////// |
168 | 168 |
169 SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, siz
e_t rowBytes) { | 169 SkImage* SkImage::NewRasterCopy(const SkImageInfo& info, const void* pixels, siz
e_t rowBytes) { |
170 if (!SkImage_Raster::ValidArgs(info, rowBytes)) { | 170 if (!SkImage_Raster::ValidArgs(info, rowBytes)) { |
171 return NULL; | 171 return NULL; |
172 } | 172 } |
173 if (0 == info.fWidth && 0 == info.fHeight) { | 173 if (0 == info.width() && 0 == info.height()) { |
174 return SkImage_Raster::NewEmpty(); | 174 return SkImage_Raster::NewEmpty(); |
175 } | 175 } |
176 // check this after empty-check | 176 // check this after empty-check |
177 if (NULL == pixels) { | 177 if (NULL == pixels) { |
178 return NULL; | 178 return NULL; |
179 } | 179 } |
180 | 180 |
181 // Here we actually make a copy of the caller's pixel data | 181 // Here we actually make a copy of the caller's pixel data |
182 SkAutoDataUnref data(SkData::NewWithCopy(pixels, info.fHeight * rowBytes)); | 182 SkAutoDataUnref data(SkData::NewWithCopy(pixels, info.height() * rowBytes)); |
183 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes)); | 183 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes)); |
184 } | 184 } |
185 | 185 |
186 | 186 |
187 SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t ro
wBytes) { | 187 SkImage* SkImage::NewRasterData(const SkImageInfo& info, SkData* data, size_t ro
wBytes) { |
188 if (!SkImage_Raster::ValidArgs(info, rowBytes)) { | 188 if (!SkImage_Raster::ValidArgs(info, rowBytes)) { |
189 return NULL; | 189 return NULL; |
190 } | 190 } |
191 if (0 == info.fWidth && 0 == info.fHeight) { | 191 if (0 == info.width() && 0 == info.height()) { |
192 return SkImage_Raster::NewEmpty(); | 192 return SkImage_Raster::NewEmpty(); |
193 } | 193 } |
194 // check this after empty-check | 194 // check this after empty-check |
195 if (NULL == data) { | 195 if (NULL == data) { |
196 return NULL; | 196 return NULL; |
197 } | 197 } |
198 | 198 |
199 // did they give us enough data? | 199 // did they give us enough data? |
200 size_t size = info.fHeight * rowBytes; | 200 size_t size = info.height() * rowBytes; |
201 if (data->size() < size) { | 201 if (data->size() < size) { |
202 return NULL; | 202 return NULL; |
203 } | 203 } |
204 | 204 |
205 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes)); | 205 return SkNEW_ARGS(SkImage_Raster, (info, data, rowBytes)); |
206 } | 206 } |
207 | 207 |
208 SkImage* SkImage::NewFromGenerator(SkImageGenerator* generator) { | 208 SkImage* SkImage::NewFromGenerator(SkImageGenerator* generator) { |
209 SkBitmap bitmap; | 209 SkBitmap bitmap; |
210 if (!SkInstallDiscardablePixelRef(generator, &bitmap)) { | 210 if (!SkInstallDiscardablePixelRef(generator, &bitmap)) { |
211 return NULL; | 211 return NULL; |
212 } | 212 } |
213 return SkNEW_ARGS(SkImage_Raster, (bitmap)); | 213 return SkNEW_ARGS(SkImage_Raster, (bitmap)); |
214 } | 214 } |
215 | 215 |
216 SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr, | 216 SkImage* SkNewImageFromPixelRef(const SkImageInfo& info, SkPixelRef* pr, |
217 size_t rowBytes) { | 217 size_t rowBytes) { |
218 return SkNEW_ARGS(SkImage_Raster, (info, pr, rowBytes)); | 218 return SkNEW_ARGS(SkImage_Raster, (info, pr, rowBytes)); |
219 } | 219 } |
220 | 220 |
221 SkPixelRef* SkBitmapImageGetPixelRef(SkImage* image) { | 221 SkPixelRef* SkBitmapImageGetPixelRef(SkImage* image) { |
222 return ((SkImage_Raster*)image)->getPixelRef(); | 222 return ((SkImage_Raster*)image)->getPixelRef(); |
223 } | 223 } |
224 | 224 |
225 bool SkImage_Raster::isOpaque() const { | 225 bool SkImage_Raster::isOpaque() const { |
226 return fBitmap.isOpaque(); | 226 return fBitmap.isOpaque(); |
227 } | 227 } |
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