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| 1 /* | 1 /* |
| 2 * Copyright 2006 The Android Open Source Project | 2 * Copyright 2006 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 #ifndef SkScalar_DEFINED | 8 #ifndef SkScalar_DEFINED |
| 9 #define SkScalar_DEFINED | 9 #define SkScalar_DEFINED |
| 10 | 10 |
| 11 #include "SkFixed.h" | 11 #include "SkFixed.h" |
| 12 #include "SkFloatingPoint.h" | 12 #include "SkFloatingPoint.h" |
| 13 | 13 |
| 14 //#define SK_SUPPORT_DEPRECATED_SCALARROUND | |
| 15 | |
| 16 // TODO: move this sort of check into SkPostConfig.h | 14 // TODO: move this sort of check into SkPostConfig.h |
| 17 #define SK_SCALAR_IS_DOUBLE 0 | 15 #define SK_SCALAR_IS_DOUBLE 0 |
| 18 #undef SK_SCALAR_IS_FLOAT | 16 #undef SK_SCALAR_IS_FLOAT |
| 19 #define SK_SCALAR_IS_FLOAT 1 | 17 #define SK_SCALAR_IS_FLOAT 1 |
| 20 | 18 |
| 21 | 19 |
| 22 #if SK_SCALAR_IS_FLOAT | 20 #if SK_SCALAR_IS_FLOAT |
| 23 | 21 |
| 24 typedef float SkScalar; | 22 typedef float SkScalar; |
| 25 | 23 |
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| 176 #define SkDegreesToRadians(degrees) ((degrees) * (SK_ScalarPI / 180)) | 174 #define SkDegreesToRadians(degrees) ((degrees) * (SK_ScalarPI / 180)) |
| 177 #define SkRadiansToDegrees(radians) ((radians) * (180 / SK_ScalarPI)) | 175 #define SkRadiansToDegrees(radians) ((radians) * (180 / SK_ScalarPI)) |
| 178 | 176 |
| 179 static inline SkScalar SkMaxScalar(SkScalar a, SkScalar b) { return a > b ? a :
b; } | 177 static inline SkScalar SkMaxScalar(SkScalar a, SkScalar b) { return a > b ? a :
b; } |
| 180 static inline SkScalar SkMinScalar(SkScalar a, SkScalar b) { return a < b ? a :
b; } | 178 static inline SkScalar SkMinScalar(SkScalar a, SkScalar b) { return a < b ? a :
b; } |
| 181 | 179 |
| 182 static inline bool SkScalarIsInt(SkScalar x) { | 180 static inline bool SkScalarIsInt(SkScalar x) { |
| 183 return x == (SkScalar)(int)x; | 181 return x == (SkScalar)(int)x; |
| 184 } | 182 } |
| 185 | 183 |
| 186 // DEPRECATED : use ToInt or ToScalar variant | |
| 187 #ifdef SK_SUPPORT_DEPRECATED_SCALARROUND | |
| 188 # define SkScalarFloor(x) SkScalarFloorToInt(x) | |
| 189 # define SkScalarCeil(x) SkScalarCeilToInt(x) | |
| 190 # define SkScalarRound(x) SkScalarRoundToInt(x) | |
| 191 #endif | |
| 192 | |
| 193 /** | 184 /** |
| 194 * Returns -1 || 0 || 1 depending on the sign of value: | 185 * Returns -1 || 0 || 1 depending on the sign of value: |
| 195 * -1 if x < 0 | 186 * -1 if x < 0 |
| 196 * 0 if x == 0 | 187 * 0 if x == 0 |
| 197 * 1 if x > 0 | 188 * 1 if x > 0 |
| 198 */ | 189 */ |
| 199 static inline int SkScalarSignAsInt(SkScalar x) { | 190 static inline int SkScalarSignAsInt(SkScalar x) { |
| 200 return x < 0 ? -1 : (x > 0); | 191 return x < 0 ? -1 : (x > 0); |
| 201 } | 192 } |
| 202 | 193 |
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| 250 SkASSERT(n >= 0); | 241 SkASSERT(n >= 0); |
| 251 for (int i = 0; i < n; ++i) { | 242 for (int i = 0; i < n; ++i) { |
| 252 if (a[i] != b[i]) { | 243 if (a[i] != b[i]) { |
| 253 return false; | 244 return false; |
| 254 } | 245 } |
| 255 } | 246 } |
| 256 return true; | 247 return true; |
| 257 } | 248 } |
| 258 | 249 |
| 259 #endif | 250 #endif |
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