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| 1 /* | 1 /* |
| 2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 #ifndef SkRecords_DEFINED | 8 #ifndef SkRecords_DEFINED |
| 9 #define SkRecords_DEFINED | 9 #define SkRecords_DEFINED |
| 10 | 10 |
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| 74 static const Type kType = T##_Type; \ | 74 static const Type kType = T##_Type; \ |
| 75 }; | 75 }; |
| 76 | 76 |
| 77 // We try to be flexible about the types the constructors take. Instead of requ
ring the exact type | 77 // We try to be flexible about the types the constructors take. Instead of requ
ring the exact type |
| 78 // A here, we take any type Z which implicitly casts to A. This allows the dela
y_copy() trick to | 78 // A here, we take any type Z which implicitly casts to A. This allows the dela
y_copy() trick to |
| 79 // work, allowing the caller to decide whether to pass by value or by const&. | 79 // work, allowing the caller to decide whether to pass by value or by const&. |
| 80 | 80 |
| 81 #define RECORD1(T, A, a) \ | 81 #define RECORD1(T, A, a) \ |
| 82 struct T { \ | 82 struct T { \ |
| 83 static const Type kType = T##_Type; \ | 83 static const Type kType = T##_Type; \ |
| 84 T() {} \ | |
| 85 template <typename Z> \ | 84 template <typename Z> \ |
| 86 T(Z a) : a(a) {} \ | 85 T(Z a) : a(a) {} \ |
| 87 A a; \ | 86 A a; \ |
| 88 }; | 87 }; |
| 89 | 88 |
| 90 #define RECORD2(T, A, a, B, b) \ | 89 #define RECORD2(T, A, a, B, b) \ |
| 91 struct T { \ | 90 struct T { \ |
| 92 static const Type kType = T##_Type; \ | 91 static const Type kType = T##_Type; \ |
| 93 T() {} \ | |
| 94 template <typename Z, typename Y> \ | 92 template <typename Z, typename Y> \ |
| 95 T(Z a, Y b) : a(a), b(b) {} \ | 93 T(Z a, Y b) : a(a), b(b) {} \ |
| 96 A a; B b; \ | 94 A a; B b; \ |
| 97 }; | 95 }; |
| 98 | 96 |
| 99 #define RECORD3(T, A, a, B, b, C, c) \ | 97 #define RECORD3(T, A, a, B, b, C, c) \ |
| 100 struct T { \ | 98 struct T { \ |
| 101 static const Type kType = T##_Type; \ | 99 static const Type kType = T##_Type; \ |
| 102 T() {} \ | |
| 103 template <typename Z, typename Y, typename X> \ | 100 template <typename Z, typename Y, typename X> \ |
| 104 T(Z a, Y b, X c) : a(a), b(b), c(c) {} \ | 101 T(Z a, Y b, X c) : a(a), b(b), c(c) {} \ |
| 105 A a; B b; C c; \ | 102 A a; B b; C c; \ |
| 106 }; | 103 }; |
| 107 | 104 |
| 108 #define RECORD4(T, A, a, B, b, C, c, D, d) \ | 105 #define RECORD4(T, A, a, B, b, C, c, D, d) \ |
| 109 struct T { \ | 106 struct T { \ |
| 110 static const Type kType = T##_Type; \ | 107 static const Type kType = T##_Type; \ |
| 111 T() {} \ | |
| 112 template <typename Z, typename Y, typename X, typename W> \ | 108 template <typename Z, typename Y, typename X, typename W> \ |
| 113 T(Z a, Y b, X c, W d) : a(a), b(b), c(c), d(d) {} \ | 109 T(Z a, Y b, X c, W d) : a(a), b(b), c(c), d(d) {} \ |
| 114 A a; B b; C c; D d; \ | 110 A a; B b; C c; D d; \ |
| 115 }; | 111 }; |
| 116 | 112 |
| 117 #define RECORD5(T, A, a, B, b, C, c, D, d, E, e) \ | 113 #define RECORD5(T, A, a, B, b, C, c, D, d, E, e) \ |
| 118 struct T { \ | 114 struct T { \ |
| 119 static const Type kType = T##_Type; \ | 115 static const Type kType = T##_Type; \ |
| 120 T() {} \ | |
| 121 template <typename Z, typename Y, typename X, typename W, typename V> \ | 116 template <typename Z, typename Y, typename X, typename W, typename V> \ |
| 122 T(Z a, Y b, X c, W d, V e) : a(a), b(b), c(c), d(d), e(e) {} \ | 117 T(Z a, Y b, X c, W d, V e) : a(a), b(b), c(c), d(d), e(e) {} \ |
| 123 A a; B b; C c; D d; E e; \ | 118 A a; B b; C c; D d; E e; \ |
| 124 }; | 119 }; |
| 125 | 120 |
| 126 #define ACT_AS_PTR(ptr) \ | 121 #define ACT_AS_PTR(ptr) \ |
| 127 operator T*() const { return ptr; } \ | 122 operator T*() const { return ptr; } \ |
| 128 T* operator->() const { return ptr; } | 123 T* operator->() const { return ptr; } |
| 129 | 124 |
| 130 template <typename T> | 125 template <typename T> |
| 131 class RefBox : SkNoncopyable { | 126 class RefBox : SkNoncopyable { |
| 132 public: | 127 public: |
| 133 RefBox() {} | |
| 134 RefBox(T* obj) : fObj(SkSafeRef(obj)) {} | 128 RefBox(T* obj) : fObj(SkSafeRef(obj)) {} |
| 135 ~RefBox() { SkSafeUnref(fObj); } | 129 ~RefBox() { SkSafeUnref(fObj); } |
| 136 | 130 |
| 137 ACT_AS_PTR(fObj); | 131 ACT_AS_PTR(fObj); |
| 138 | 132 |
| 139 private: | 133 private: |
| 140 T* fObj; | 134 T* fObj; |
| 141 }; | 135 }; |
| 142 | 136 |
| 143 // An Optional doesn't own the pointer's memory, but may need to destroy non-POD
data. | 137 // An Optional doesn't own the pointer's memory, but may need to destroy non-POD
data. |
| 144 template <typename T> | 138 template <typename T> |
| 145 class Optional : SkNoncopyable { | 139 class Optional : SkNoncopyable { |
| 146 public: | 140 public: |
| 147 Optional() : fPtr(nullptr) {} | |
| 148 Optional(T* ptr) : fPtr(ptr) {} | 141 Optional(T* ptr) : fPtr(ptr) {} |
| 149 ~Optional() { if (fPtr) fPtr->~T(); } | 142 ~Optional() { if (fPtr) fPtr->~T(); } |
| 150 | 143 |
| 151 ACT_AS_PTR(fPtr); | 144 ACT_AS_PTR(fPtr); |
| 152 private: | 145 private: |
| 153 T* fPtr; | 146 T* fPtr; |
| 154 }; | 147 }; |
| 155 | 148 |
| 156 // Like Optional, but ptr must not be NULL. | 149 // Like Optional, but ptr must not be NULL. |
| 157 template <typename T> | 150 template <typename T> |
| 158 class Adopted : SkNoncopyable { | 151 class Adopted : SkNoncopyable { |
| 159 public: | 152 public: |
| 160 Adopted(T* ptr) : fPtr(ptr) { SkASSERT(fPtr); } | 153 Adopted(T* ptr) : fPtr(ptr) { SkASSERT(fPtr); } |
| 161 Adopted(Adopted* source) { | 154 Adopted(Adopted* source) { |
| 162 // Transfer ownership from source to this. | 155 // Transfer ownership from source to this. |
| 163 fPtr = source->fPtr; | 156 fPtr = source->fPtr; |
| 164 source->fPtr = NULL; | 157 source->fPtr = NULL; |
| 165 } | 158 } |
| 166 ~Adopted() { if (fPtr) fPtr->~T(); } | 159 ~Adopted() { if (fPtr) fPtr->~T(); } |
| 167 | 160 |
| 168 ACT_AS_PTR(fPtr); | 161 ACT_AS_PTR(fPtr); |
| 169 private: | 162 private: |
| 170 T* fPtr; | 163 T* fPtr; |
| 171 }; | 164 }; |
| 172 | 165 |
| 173 // PODArray doesn't own the pointer's memory, and we assume the data is POD. | 166 // PODArray doesn't own the pointer's memory, and we assume the data is POD. |
| 174 template <typename T> | 167 template <typename T> |
| 175 class PODArray { | 168 class PODArray { |
| 176 public: | 169 public: |
| 177 PODArray() {} | |
| 178 PODArray(T* ptr) : fPtr(ptr) {} | 170 PODArray(T* ptr) : fPtr(ptr) {} |
| 179 // Default copy and assign. | 171 // Default copy and assign. |
| 180 | 172 |
| 181 ACT_AS_PTR(fPtr); | 173 ACT_AS_PTR(fPtr); |
| 182 private: | 174 private: |
| 183 T* fPtr; | 175 T* fPtr; |
| 184 }; | 176 }; |
| 185 | 177 |
| 186 #undef ACT_AS_PTR | 178 #undef ACT_AS_PTR |
| 187 | 179 |
| 188 // Like SkBitmap, but deep copies pixels if they're not immutable. | 180 // Like SkBitmap, but deep copies pixels if they're not immutable. |
| 189 // Using this, we guarantee the immutability of all bitmaps we record. | 181 // Using this, we guarantee the immutability of all bitmaps we record. |
| 190 class ImmutableBitmap : SkNoncopyable { | 182 class ImmutableBitmap : SkNoncopyable { |
| 191 public: | 183 public: |
| 192 ImmutableBitmap() {} | |
| 193 explicit ImmutableBitmap(const SkBitmap& bitmap) { | 184 explicit ImmutableBitmap(const SkBitmap& bitmap) { |
| 194 if (bitmap.isImmutable()) { | 185 if (bitmap.isImmutable()) { |
| 195 fBitmap = bitmap; | 186 fBitmap = bitmap; |
| 196 } else { | 187 } else { |
| 197 bitmap.copyTo(&fBitmap); | 188 bitmap.copyTo(&fBitmap); |
| 198 } | 189 } |
| 199 fBitmap.setImmutable(); | 190 fBitmap.setImmutable(); |
| 200 } | 191 } |
| 201 | 192 |
| 202 int width() const { return fBitmap.width(); } | 193 int width() const { return fBitmap.width(); } |
| 203 int height() const { return fBitmap.height(); } | 194 int height() const { return fBitmap.height(); } |
| 204 | 195 |
| 205 // While the pixels are immutable, SkBitmap itself is not thread-safe, so re
turn a copy. | 196 // While the pixels are immutable, SkBitmap itself is not thread-safe, so re
turn a copy. |
| 206 SkBitmap shallowCopy() const { return fBitmap; } | 197 SkBitmap shallowCopy() const { return fBitmap; } |
| 207 private: | 198 private: |
| 208 SkBitmap fBitmap; | 199 SkBitmap fBitmap; |
| 209 }; | 200 }; |
| 210 | 201 |
| 211 // SkPath::getBounds() isn't thread safe unless we precache the bounds in a sing
lethreaded context. | 202 // SkPath::getBounds() isn't thread safe unless we precache the bounds in a sing
lethreaded context. |
| 212 // SkPath::cheapComputeDirection() is similar. | 203 // SkPath::cheapComputeDirection() is similar. |
| 213 // Recording is a convenient time to cache these, or we can delay it to between
record and playback. | 204 // Recording is a convenient time to cache these, or we can delay it to between
record and playback. |
| 214 struct PreCachedPath : public SkPath { | 205 struct PreCachedPath : public SkPath { |
| 215 PreCachedPath() {} | |
| 216 explicit PreCachedPath(const SkPath& path) : SkPath(path) { | 206 explicit PreCachedPath(const SkPath& path) : SkPath(path) { |
| 217 this->updateBoundsCache(); | 207 this->updateBoundsCache(); |
| 218 SkPath::Direction junk; | 208 SkPath::Direction junk; |
| 219 (void)this->cheapComputeDirection(&junk); | 209 (void)this->cheapComputeDirection(&junk); |
| 220 } | 210 } |
| 221 }; | 211 }; |
| 222 | 212 |
| 223 // Like SkPath::getBounds(), SkMatrix::getType() isn't thread safe unless we pre
cache it. | 213 // Like SkPath::getBounds(), SkMatrix::getType() isn't thread safe unless we pre
cache it. |
| 224 // This may not cover all SkMatrices used by the picture (e.g. some could be hid
ing in a shader). | 214 // This may not cover all SkMatrices used by the picture (e.g. some could be hid
ing in a shader). |
| 225 struct TypedMatrix : public SkMatrix { | 215 struct TypedMatrix : public SkMatrix { |
| 226 TypedMatrix() {} | |
| 227 explicit TypedMatrix(const SkMatrix& matrix) : SkMatrix(matrix) { | 216 explicit TypedMatrix(const SkMatrix& matrix) : SkMatrix(matrix) { |
| 228 (void)this->getType(); | 217 (void)this->getType(); |
| 229 } | 218 } |
| 230 }; | 219 }; |
| 231 | 220 |
| 232 RECORD0(NoOp); | 221 RECORD0(NoOp); |
| 233 | 222 |
| 234 RECORD2(Restore, SkIRect, devBounds, TypedMatrix, matrix); | 223 RECORD2(Restore, SkIRect, devBounds, TypedMatrix, matrix); |
| 235 RECORD0(Save); | 224 RECORD0(Save); |
| 236 RECORD3(SaveLayer, Optional<SkRect>, bounds, Optional<SkPaint>, paint, SkCanvas:
:SaveFlags, flags); | 225 RECORD3(SaveLayer, Optional<SkRect>, bounds, Optional<SkPaint>, paint, SkCanvas:
:SaveFlags, flags); |
| 237 | 226 |
| 238 RECORD1(SetMatrix, TypedMatrix, matrix); | 227 RECORD1(SetMatrix, TypedMatrix, matrix); |
| 239 | 228 |
| 240 struct RegionOpAndAA { | 229 struct RegionOpAndAA { |
| 241 RegionOpAndAA() {} | |
| 242 RegionOpAndAA(SkRegion::Op op, bool aa) : op(op), aa(aa) {} | 230 RegionOpAndAA(SkRegion::Op op, bool aa) : op(op), aa(aa) {} |
| 243 SkRegion::Op op : 31; // This really only needs to be 3, but there's no win
today to do so. | 231 SkRegion::Op op : 31; // This really only needs to be 3, but there's no win
today to do so. |
| 244 unsigned aa : 1; // MSVC won't pack an enum with an bool, so we call t
his an unsigned. | 232 unsigned aa : 1; // MSVC won't pack an enum with an bool, so we call t
his an unsigned. |
| 245 }; | 233 }; |
| 246 SK_COMPILE_ASSERT(sizeof(RegionOpAndAA) == 4, RegionOpAndAASize); | 234 SK_COMPILE_ASSERT(sizeof(RegionOpAndAA) == 4, RegionOpAndAASize); |
| 247 | 235 |
| 248 RECORD3(ClipPath, SkIRect, devBounds, PreCachedPath, path, RegionOpAndAA, opA
A); | 236 RECORD3(ClipPath, SkIRect, devBounds, PreCachedPath, path, RegionOpAndAA, opA
A); |
| 249 RECORD3(ClipRRect, SkIRect, devBounds, SkRRect, rrect, RegionOpAndAA, opA
A); | 237 RECORD3(ClipRRect, SkIRect, devBounds, SkRRect, rrect, RegionOpAndAA, opA
A); |
| 250 RECORD3(ClipRect, SkIRect, devBounds, SkRect, rect, RegionOpAndAA, opA
A); | 238 RECORD3(ClipRect, SkIRect, devBounds, SkRect, rect, RegionOpAndAA, opA
A); |
| 251 RECORD3(ClipRegion, SkIRect, devBounds, SkRegion, region, SkRegion::Op, o
p); | 239 RECORD3(ClipRegion, SkIRect, devBounds, SkRegion, region, SkRegion::Op, o
p); |
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| 358 #undef RECORD0 | 346 #undef RECORD0 |
| 359 #undef RECORD1 | 347 #undef RECORD1 |
| 360 #undef RECORD2 | 348 #undef RECORD2 |
| 361 #undef RECORD3 | 349 #undef RECORD3 |
| 362 #undef RECORD4 | 350 #undef RECORD4 |
| 363 #undef RECORD5 | 351 #undef RECORD5 |
| 364 | 352 |
| 365 } // namespace SkRecords | 353 } // namespace SkRecords |
| 366 | 354 |
| 367 #endif//SkRecords_DEFINED | 355 #endif//SkRecords_DEFINED |
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