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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 #ifndef SkDeviceProfile_DEFINED | 8 #ifndef SkDeviceProfile_DEFINED |
| 9 #define SkDeviceProfile_DEFINED | 9 #define SkDeviceProfile_DEFINED |
| 10 | 10 |
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| 45 * "default". Otherwise the paint's hinting level will be | 45 * "default". Otherwise the paint's hinting level will be |
| 46 * respected. | 46 * respected. |
| 47 */ | 47 */ |
| 48 static SkDeviceProfile* Create(float gammaExp, | 48 static SkDeviceProfile* Create(float gammaExp, |
| 49 float contrastScale, | 49 float contrastScale, |
| 50 LCDConfig, | 50 LCDConfig, |
| 51 FontHintLevel); | 51 FontHintLevel); |
| 52 | 52 |
| 53 /** | 53 /** |
| 54 * Returns the global default profile, that is used if no global profile is | 54 * Returns the global default profile, that is used if no global profile is |
| 55 * specified with SetGlobal(), or if NULL is specified to SetGlobal(). | 55 * specified with SetGlobal(), or if nullptr is specified to SetGlobal(). |
| 56 * The references count is *not* incremented, and the caller should not | 56 * The references count is *not* incremented, and the caller should not |
| 57 * call unref(). | 57 * call unref(). |
| 58 */ | 58 */ |
| 59 static SkDeviceProfile* GetDefault(); | 59 static SkDeviceProfile* GetDefault(); |
| 60 | 60 |
| 61 /** | 61 /** |
| 62 * Return the current global profile (or the default if no global had yet | 62 * Return the current global profile (or the default if no global had yet |
| 63 * been set) and increment its reference count. The call *must* call unref(
) | 63 * been set) and increment its reference count. The call *must* call unref(
) |
| 64 * when it is done using it. | 64 * when it is done using it. |
| 65 */ | 65 */ |
| 66 static SkDeviceProfile* RefGlobal(); | 66 static SkDeviceProfile* RefGlobal(); |
| 67 | 67 |
| 68 /** | 68 /** |
| 69 * Make the specified profile be the global value for all subsequently | 69 * Make the specified profile be the global value for all subsequently |
| 70 * instantiated devices. Does not affect any existing devices. | 70 * instantiated devices. Does not affect any existing devices. |
| 71 * Increments the reference count on the profile. | 71 * Increments the reference count on the profile. |
| 72 * Specify NULL for the "identity" profile (where there is no gamma or | 72 * Specify nullptr for the "identity" profile (where there is no gamma or |
| 73 * contrast correction). | 73 * contrast correction). |
| 74 */ | 74 */ |
| 75 static void SetGlobal(SkDeviceProfile*); | 75 static void SetGlobal(SkDeviceProfile*); |
| 76 | 76 |
| 77 float getFontGammaExponent() const { return fGammaExponent; } | 77 float getFontGammaExponent() const { return fGammaExponent; } |
| 78 float getFontContrastScale() const { return fContrastScale; } | 78 float getFontContrastScale() const { return fContrastScale; } |
| 79 | 79 |
| 80 /** | 80 /** |
| 81 * Given a luminance byte (0 for black, 0xFF for white), generate a table | 81 * Given a luminance byte (0 for black, 0xFF for white), generate a table |
| 82 * that applies the gamma/contrast settings to linear coverage values. | 82 * that applies the gamma/contrast settings to linear coverage values. |
| 83 */ | 83 */ |
| 84 void generateTableForLuminanceByte(U8CPU lumByte, uint8_t table[256]) const; | 84 void generateTableForLuminanceByte(U8CPU lumByte, uint8_t table[256]) const; |
| 85 | 85 |
| 86 private: | 86 private: |
| 87 SkDeviceProfile(float gammaExp, float contrastScale, LCDConfig, | 87 SkDeviceProfile(float gammaExp, float contrastScale, LCDConfig, |
| 88 FontHintLevel); | 88 FontHintLevel); |
| 89 | 89 |
| 90 float fGammaExponent; | 90 float fGammaExponent; |
| 91 float fContrastScale; | 91 float fContrastScale; |
| 92 LCDConfig fLCDConfig; | 92 LCDConfig fLCDConfig; |
| 93 FontHintLevel fFontHintLevel; | 93 FontHintLevel fFontHintLevel; |
| 94 | 94 |
| 95 typedef SkRefCnt INHERITED; | 95 typedef SkRefCnt INHERITED; |
| 96 }; | 96 }; |
| 97 | 97 |
| 98 #endif | 98 #endif |
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