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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 "SkBitmap.h" | 8 #include "SkBitmap.h" |
9 #include "SkBitmapCache.h" | 9 #include "SkBitmapCache.h" |
10 #include "SkCanvas.h" | 10 #include "SkCanvas.h" |
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119 } | 119 } |
120 | 120 |
121 SkImage* SkImage::NewFromEncoded(SkData* encoded, const SkIRect* subset) { | 121 SkImage* SkImage::NewFromEncoded(SkData* encoded, const SkIRect* subset) { |
122 if (nullptr == encoded || 0 == encoded->size()) { | 122 if (nullptr == encoded || 0 == encoded->size()) { |
123 return nullptr; | 123 return nullptr; |
124 } | 124 } |
125 SkImageGenerator* generator = SkImageGenerator::NewFromEncoded(encoded); | 125 SkImageGenerator* generator = SkImageGenerator::NewFromEncoded(encoded); |
126 return generator ? SkImage::NewFromGenerator(generator, subset) : nullptr; | 126 return generator ? SkImage::NewFromGenerator(generator, subset) : nullptr; |
127 } | 127 } |
128 | 128 |
129 SkSurface* SkImage::newSurface(const SkImageInfo& info, const SkSurfaceProps* pr
ops) const { | |
130 if (nullptr == props) { | |
131 props = &as_IB(this)->props(); | |
132 } | |
133 return as_IB(this)->onNewSurface(info, *props); | |
134 } | |
135 | |
136 const char* SkImage::toString(SkString* str) const { | 129 const char* SkImage::toString(SkString* str) const { |
137 str->appendf("image: (id:%d (%d, %d) %s)", this->uniqueID(), this->width(),
this->height(), | 130 str->appendf("image: (id:%d (%d, %d) %s)", this->uniqueID(), this->width(),
this->height(), |
138 this->isOpaque() ? "opaque" : ""); | 131 this->isOpaque() ? "opaque" : ""); |
139 return str->c_str(); | 132 return str->c_str(); |
140 } | 133 } |
141 | 134 |
142 SkImage* SkImage::newImage(int newWidth, int newHeight, const SkIRect* subset, | 135 #ifdef SK_SUPPORT_LEGACY_NEWIMAGE |
143 SkFilterQuality quality) const { | 136 SkImage* SkImage::newImage(int newWidth, int newHeight, const SkIRect* subset) c
onst { |
| 137 #if 0 |
144 if (newWidth <= 0 || newHeight <= 0) { | 138 if (newWidth <= 0 || newHeight <= 0) { |
145 return nullptr; | 139 return nullptr; |
146 } | 140 } |
147 | 141 |
148 const SkIRect bounds = SkIRect::MakeWH(this->width(), this->height()); | 142 const SkIRect bounds = SkIRect::MakeWH(this->width(), this->height()); |
149 | 143 |
150 if (subset) { | 144 if (subset) { |
151 if (!bounds.contains(*subset)) { | 145 if (!bounds.contains(*subset)) { |
152 return nullptr; | 146 return nullptr; |
153 } | 147 } |
154 if (bounds == *subset) { | 148 if (bounds == *subset) { |
155 subset = nullptr; // and fall through to check below | 149 subset = nullptr; // and fall through to check below |
156 } | 150 } |
157 } | 151 } |
158 | 152 |
159 if (nullptr == subset && this->width() == newWidth && this->height() == newH
eight) { | 153 if (nullptr == subset && this->width() == newWidth && this->height() == newH
eight) { |
160 return SkRef(const_cast<SkImage*>(this)); | 154 return SkRef(const_cast<SkImage*>(this)); |
161 } | 155 } |
162 | 156 |
163 return as_IB(this)->onNewImage(newWidth, newHeight, subset, quality); | 157 return as_IB(this)->onNewImage(newWidth, newHeight, subset, quality); |
| 158 #else |
| 159 SkASSERT(subset); |
| 160 SkASSERT(subset->width() == newWidth); |
| 161 SkASSERT(subset->height() == newHeight); |
| 162 return this->newSubset(*subset); |
| 163 #endif |
| 164 } |
| 165 #endif |
| 166 |
| 167 SkImage* SkImage::newSubset(const SkIRect& subset) const { |
| 168 if (subset.isEmpty()) { |
| 169 return nullptr; |
| 170 } |
| 171 |
| 172 const SkIRect bounds = SkIRect::MakeWH(this->width(), this->height()); |
| 173 if (!bounds.contains(subset)) { |
| 174 return nullptr; |
| 175 } |
| 176 |
| 177 // optimization : return self if the subset == our bounds |
| 178 if (bounds == subset) { |
| 179 return SkRef(const_cast<SkImage*>(this)); |
| 180 } |
| 181 return as_IB(this)->onNewSubset(subset); |
164 } | 182 } |
165 | 183 |
166 #if SK_SUPPORT_GPU | 184 #if SK_SUPPORT_GPU |
167 | 185 |
168 GrTexture* SkImage::getTexture() const { | 186 GrTexture* SkImage::getTexture() const { |
169 return as_IB(this)->peekTexture(); | 187 return as_IB(this)->peekTexture(); |
170 } | 188 } |
171 | 189 |
172 bool SkImage::isTextureBacked() const { return SkToBool(as_IB(this)->getTexture(
)); } | 190 bool SkImage::isTextureBacked() const { return SkToBool(as_IB(this)->getTexture(
)); } |
173 | 191 |
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237 bm.installPixels(dstInfo, dstPixels, dstRowBytes); | 255 bm.installPixels(dstInfo, dstPixels, dstRowBytes); |
238 SkCanvas canvas(bm); | 256 SkCanvas canvas(bm); |
239 | 257 |
240 SkPaint paint; | 258 SkPaint paint; |
241 paint.setXfermodeMode(SkXfermode::kSrc_Mode); | 259 paint.setXfermodeMode(SkXfermode::kSrc_Mode); |
242 canvas.drawImage(this, -SkIntToScalar(srcX), -SkIntToScalar(srcY), &paint); | 260 canvas.drawImage(this, -SkIntToScalar(srcX), -SkIntToScalar(srcY), &paint); |
243 | 261 |
244 return true; | 262 return true; |
245 } | 263 } |
246 | 264 |
247 SkImage* SkImage_Base::onNewImage(int newWidth, int newHeight, const SkIRect* su
bset, | |
248 SkFilterQuality quality) const { | |
249 const bool opaque = this->isOpaque(); | |
250 const SkImageInfo info = SkImageInfo::Make(newWidth, newHeight, kN32_SkColor
Type, | |
251 opaque ? kOpaque_SkAlphaType : kP
remul_SkAlphaType); | |
252 SkAutoTUnref<SkSurface> surface(this->newSurface(info, nullptr)); | |
253 if (!surface.get()) { | |
254 return nullptr; | |
255 } | |
256 | |
257 SkRect src; | |
258 if (subset) { | |
259 src.set(*subset); | |
260 } else { | |
261 src = SkRect::MakeIWH(this->width(), this->height()); | |
262 } | |
263 | |
264 surface->getCanvas()->scale(newWidth / src.width(), newHeight / src.height()
); | |
265 surface->getCanvas()->translate(-src.x(), -src.y()); | |
266 | |
267 SkPaint paint; | |
268 paint.setXfermodeMode(SkXfermode::kSrc_Mode); | |
269 paint.setFilterQuality(quality); | |
270 surface->getCanvas()->drawImage(this, 0, 0, &paint); | |
271 return surface->newImageSnapshot(); | |
272 } | |
273 | |
274 ////////////////////////////////////////////////////////////////////////////////
/////////////////// | 265 ////////////////////////////////////////////////////////////////////////////////
/////////////////// |
275 | 266 |
276 bool SkImage::peekPixels(SkPixmap* pmap) const { | 267 bool SkImage::peekPixels(SkPixmap* pmap) const { |
277 SkImageInfo info; | 268 SkImageInfo info; |
278 size_t rowBytes; | 269 size_t rowBytes; |
279 const void* pixels = this->peekPixels(&info, &rowBytes); | 270 const void* pixels = this->peekPixels(&info, &rowBytes); |
280 if (pixels) { | 271 if (pixels) { |
281 if (pmap) { | 272 if (pmap) { |
282 pmap->reset(info, pixels, rowBytes); | 273 pmap->reset(info, pixels, rowBytes); |
283 } | 274 } |
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304 if (!bm.isImmutable()) { | 295 if (!bm.isImmutable()) { |
305 const bool notBudgeted = false; | 296 const bool notBudgeted = false; |
306 tex = GrDeepCopyTexture(tex, notBudgeted); | 297 tex = GrDeepCopyTexture(tex, notBudgeted); |
307 if (nullptr == tex) { | 298 if (nullptr == tex) { |
308 return nullptr; | 299 return nullptr; |
309 } | 300 } |
310 unrefCopy.reset(tex); | 301 unrefCopy.reset(tex); |
311 } | 302 } |
312 const SkImageInfo info = bm.info(); | 303 const SkImageInfo info = bm.info(); |
313 return new SkImage_Gpu(info.width(), info.height(), bm.getGenerationID()
, info.alphaType(), | 304 return new SkImage_Gpu(info.width(), info.height(), bm.getGenerationID()
, info.alphaType(), |
314 tex, 0, SkSurface::kNo_Budgeted); | 305 tex, SkSurface::kNo_Budgeted); |
315 } | 306 } |
316 #endif | 307 #endif |
317 | 308 |
318 // This will check for immutable (share or copy) | 309 // This will check for immutable (share or copy) |
319 return SkNewImageFromRasterBitmap(bm, nullptr); | 310 return SkNewImageFromRasterBitmap(bm, nullptr); |
320 } | 311 } |
321 | 312 |
322 bool SkImage::asLegacyBitmap(SkBitmap* bitmap, LegacyBitmapMode mode) const { | 313 bool SkImage::asLegacyBitmap(SkBitmap* bitmap, LegacyBitmapMode mode) const { |
323 return as_IB(this)->onAsLegacyBitmap(bitmap, mode); | 314 return as_IB(this)->onAsLegacyBitmap(bitmap, mode); |
324 } | 315 } |
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365 | 356 |
366 SkImage* SkImage::NewFromAdoptedTexture(GrContext*, const GrBackendTextureDesc&,
SkAlphaType) { | 357 SkImage* SkImage::NewFromAdoptedTexture(GrContext*, const GrBackendTextureDesc&,
SkAlphaType) { |
367 return nullptr; | 358 return nullptr; |
368 } | 359 } |
369 | 360 |
370 SkImage* SkImage::NewFromTextureCopy(GrContext*, const GrBackendTextureDesc&, Sk
AlphaType) { | 361 SkImage* SkImage::NewFromTextureCopy(GrContext*, const GrBackendTextureDesc&, Sk
AlphaType) { |
371 return nullptr; | 362 return nullptr; |
372 } | 363 } |
373 | 364 |
374 #endif | 365 #endif |
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