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1 /* | 1 /* |
2 * Copyright 2008 The Android Open Source Project | 2 * Copyright 2008 The Android Open Source Project |
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 "SkAtomics.h" | 8 #include "SkAtomics.h" |
9 #include "SkBitmap.h" | 9 #include "SkBitmap.h" |
10 #include "SkColorPriv.h" | 10 #include "SkColorPriv.h" |
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1156 | 1156 |
1157 const size_t ramRB = info.minRowBytes(); | 1157 const size_t ramRB = info.minRowBytes(); |
1158 const int height = SkMax32(info.height(), 0); | 1158 const int height = SkMax32(info.height(), 0); |
1159 const uint64_t snugSize = sk_64_mul(snugRB, height); | 1159 const uint64_t snugSize = sk_64_mul(snugRB, height); |
1160 const uint64_t ramSize = sk_64_mul(ramRB, height); | 1160 const uint64_t ramSize = sk_64_mul(ramRB, height); |
1161 static const uint64_t max_size_t = (size_t)(-1); | 1161 static const uint64_t max_size_t = (size_t)(-1); |
1162 if (!buffer->validate((snugSize <= ramSize) && (ramSize <= max_size_t))) { | 1162 if (!buffer->validate((snugSize <= ramSize) && (ramSize <= max_size_t))) { |
1163 return false; | 1163 return false; |
1164 } | 1164 } |
1165 | 1165 |
1166 SkAutoDataUnref data(SkData::NewUninitialized(SkToSizeT(ramSize))); | 1166 sk_sp<SkData> data(SkData::MakeUninitialized(SkToSizeT(ramSize))); |
1167 unsigned char* dst = (unsigned char*)data->writable_data(); | 1167 unsigned char* dst = (unsigned char*)data->writable_data(); |
1168 buffer->readByteArray(dst, SkToSizeT(snugSize)); | 1168 buffer->readByteArray(dst, SkToSizeT(snugSize)); |
1169 | 1169 |
1170 if (snugSize != ramSize) { | 1170 if (snugSize != ramSize) { |
1171 const unsigned char* srcRow = dst + snugRB * (height - 1); | 1171 const unsigned char* srcRow = dst + snugRB * (height - 1); |
1172 unsigned char* dstRow = dst + ramRB * (height - 1); | 1172 unsigned char* dstRow = dst + ramRB * (height - 1); |
1173 for (int y = height - 1; y >= 1; --y) { | 1173 for (int y = height - 1; y >= 1; --y) { |
1174 memmove(dstRow, srcRow, snugRB); | 1174 memmove(dstRow, srcRow, snugRB); |
1175 srcRow -= snugRB; | 1175 srcRow -= snugRB; |
1176 dstRow -= ramRB; | 1176 dstRow -= ramRB; |
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1351 /////////////////////////////////////////////////////////////////////////////// | 1351 /////////////////////////////////////////////////////////////////////////////// |
1352 | 1352 |
1353 #ifdef SK_DEBUG | 1353 #ifdef SK_DEBUG |
1354 void SkImageInfo::validate() const { | 1354 void SkImageInfo::validate() const { |
1355 SkASSERT(fWidth >= 0); | 1355 SkASSERT(fWidth >= 0); |
1356 SkASSERT(fHeight >= 0); | 1356 SkASSERT(fHeight >= 0); |
1357 SkASSERT(SkColorTypeIsValid(fColorType)); | 1357 SkASSERT(SkColorTypeIsValid(fColorType)); |
1358 SkASSERT(SkAlphaTypeIsValid(fAlphaType)); | 1358 SkASSERT(SkAlphaTypeIsValid(fAlphaType)); |
1359 } | 1359 } |
1360 #endif | 1360 #endif |
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