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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 "SkTableColorFilter.h" | 9 #include "SkTableColorFilter.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
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194 1, 2, 2, 3, | 194 1, 2, 2, 3, |
195 1, 2, 2, 3, | 195 1, 2, 2, 3, |
196 2, 3, 3, 4 | 196 2, 3, 3, 4 |
197 }; | 197 }; |
198 | 198 |
199 #include "SkPackBits.h" | 199 #include "SkPackBits.h" |
200 | 200 |
201 void SkTable_ColorFilter::flatten(SkWriteBuffer& buffer) const { | 201 void SkTable_ColorFilter::flatten(SkWriteBuffer& buffer) const { |
202 uint8_t storage[5*256]; | 202 uint8_t storage[5*256]; |
203 int count = gCountNibBits[fFlags & 0xF]; | 203 int count = gCountNibBits[fFlags & 0xF]; |
204 size_t size = SkPackBits::Pack8(fStorage, count * 256, storage); | 204 size_t size = SkPackBits::Pack8(fStorage, count * 256, storage, |
205 SkASSERT(size <= sizeof(storage)); | 205 sizeof(storage)); |
206 | 206 |
207 buffer.write32(fFlags); | 207 buffer.write32(fFlags); |
208 buffer.writeByteArray(storage, size); | 208 buffer.writeByteArray(storage, size); |
209 } | 209 } |
210 | 210 |
211 SkFlattenable* SkTable_ColorFilter::CreateProc(SkReadBuffer& buffer) { | 211 SkFlattenable* SkTable_ColorFilter::CreateProc(SkReadBuffer& buffer) { |
212 const int flags = buffer.read32(); | 212 const int flags = buffer.read32(); |
213 const size_t count = gCountNibBits[flags & 0xF]; | 213 const size_t count = gCountNibBits[flags & 0xF]; |
214 SkASSERT(count <= 4); | 214 SkASSERT(count <= 4); |
215 | 215 |
216 uint8_t packedStorage[5*256]; | 216 uint8_t packedStorage[5*256]; |
217 size_t packedSize = buffer.getArrayCount(); | 217 size_t packedSize = buffer.getArrayCount(); |
218 if (!buffer.validate(packedSize <= sizeof(packedStorage))) { | 218 if (!buffer.validate(packedSize <= sizeof(packedStorage))) { |
219 return NULL; | 219 return NULL; |
220 } | 220 } |
221 if (!buffer.readByteArray(packedStorage, packedSize)) { | 221 if (!buffer.readByteArray(packedStorage, packedSize)) { |
222 return NULL; | 222 return NULL; |
223 } | 223 } |
224 | 224 |
225 uint8_t unpackedStorage[4*256]; | 225 uint8_t unpackedStorage[4*256]; |
226 size_t unpackedSize = SkPackBits::Unpack8(packedStorage, packedSize, unpacke
dStorage); | 226 size_t unpackedSize = SkPackBits::Unpack8(packedStorage, packedSize, |
| 227 unpackedStorage, sizeof(unpackedStorage)); |
227 // now check that we got the size we expected | 228 // now check that we got the size we expected |
228 if (!buffer.validate(unpackedSize == count*256)) { | 229 if (!buffer.validate(unpackedSize == count*256)) { |
229 return NULL; | 230 return NULL; |
230 } | 231 } |
231 | 232 |
232 const uint8_t* a = NULL; | 233 const uint8_t* a = NULL; |
233 const uint8_t* r = NULL; | 234 const uint8_t* r = NULL; |
234 const uint8_t* g = NULL; | 235 const uint8_t* g = NULL; |
235 const uint8_t* b = NULL; | 236 const uint8_t* b = NULL; |
236 const uint8_t* ptr = unpackedStorage; | 237 const uint8_t* ptr = unpackedStorage; |
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618 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], | 619 SkColorFilter* SkTableColorFilter::CreateARGB(const uint8_t tableA[256], |
619 const uint8_t tableR[256], | 620 const uint8_t tableR[256], |
620 const uint8_t tableG[256], | 621 const uint8_t tableG[256], |
621 const uint8_t tableB[256]) { | 622 const uint8_t tableB[256]) { |
622 return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB)); | 623 return SkNEW_ARGS(SkTable_ColorFilter, (tableA, tableR, tableG, tableB)); |
623 } | 624 } |
624 | 625 |
625 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) | 626 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkTableColorFilter) |
626 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) | 627 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkTable_ColorFilter) |
627 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END | 628 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |
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