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1 /* | 1 /* |
2 * Copyright 2013 Google Inc. | 2 * Copyright 2013 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 "SkArithmeticMode.h" | 8 #include "SkArithmeticMode.h" |
9 #include "SkColorPriv.h" | 9 #include "SkColorPriv.h" |
10 #include "SkReadBuffer.h" | 10 #include "SkReadBuffer.h" |
11 #include "SkWriteBuffer.h" | 11 #include "SkWriteBuffer.h" |
12 #include "SkString.h" | 12 #include "SkString.h" |
13 #include "SkUnPreMultiply.h" | 13 #include "SkUnPreMultiply.h" |
14 #include "SkValue.h" | |
15 #include "SkValueKeys.h" | |
16 #if SK_SUPPORT_GPU | 14 #if SK_SUPPORT_GPU |
17 #include "SkArithmeticMode_gpu.h" | 15 #include "SkArithmeticMode_gpu.h" |
18 #endif | 16 #endif |
19 | 17 |
20 static const bool gUseUnpremul = false; | 18 static const bool gUseUnpremul = false; |
21 | 19 |
22 class SkArithmeticMode_scalar : public SkXfermode { | 20 class SkArithmeticMode_scalar : public SkXfermode { |
23 public: | 21 public: |
24 static SkXfermode* Create(SkScalar k1, SkScalar k2, SkScalar k3, SkScalar k4
, | 22 static SkXfermode* Create(SkScalar k1, SkScalar k2, SkScalar k3, SkScalar k4
, |
25 bool enforcePMColor) { | 23 bool enforcePMColor) { |
26 if (SkScalarNearlyZero(k1) && SkScalarNearlyEqual(k2, SK_Scalar1) && | 24 if (SkScalarNearlyZero(k1) && SkScalarNearlyEqual(k2, SK_Scalar1) && |
27 SkScalarNearlyZero(k3) && SkScalarNearlyZero(k4)) { | 25 SkScalarNearlyZero(k3) && SkScalarNearlyZero(k4)) { |
28 return SkXfermode::Create(SkXfermode::kSrc_Mode); | 26 return SkXfermode::Create(SkXfermode::kSrc_Mode); |
29 } else if (SkScalarNearlyZero(k1) && SkScalarNearlyZero(k2) && | 27 } else if (SkScalarNearlyZero(k1) && SkScalarNearlyZero(k2) && |
30 SkScalarNearlyEqual(k3, SK_Scalar1) && SkScalarNearlyZero(k4)
) { | 28 SkScalarNearlyEqual(k3, SK_Scalar1) && SkScalarNearlyZero(k4)
) { |
31 return SkXfermode::Create(SkXfermode::kDst_Mode); | 29 return SkXfermode::Create(SkXfermode::kDst_Mode); |
32 } | 30 } |
33 | 31 |
34 return new SkArithmeticMode_scalar(k1, k2, k3, k4, enforcePMColor); | 32 return new SkArithmeticMode_scalar(k1, k2, k3, k4, enforcePMColor); |
35 } | 33 } |
36 | 34 |
37 void xfer32(SkPMColor dst[], const SkPMColor src[], int count, | 35 void xfer32(SkPMColor dst[], const SkPMColor src[], int count, |
38 const SkAlpha aa[]) const override; | 36 const SkAlpha aa[]) const override; |
39 | 37 |
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57 } | 55 } |
58 | 56 |
59 void flatten(SkWriteBuffer& buffer) const override { | 57 void flatten(SkWriteBuffer& buffer) const override { |
60 buffer.writeScalar(fK[0]); | 58 buffer.writeScalar(fK[0]); |
61 buffer.writeScalar(fK[1]); | 59 buffer.writeScalar(fK[1]); |
62 buffer.writeScalar(fK[2]); | 60 buffer.writeScalar(fK[2]); |
63 buffer.writeScalar(fK[3]); | 61 buffer.writeScalar(fK[3]); |
64 buffer.writeBool(fEnforcePMColor); | 62 buffer.writeBool(fEnforcePMColor); |
65 } | 63 } |
66 | 64 |
67 SkValue asValue() const override { | |
68 auto value = SkValue::Object(SkValue::ArithmeticXfermode); | |
69 using namespace SkValueKeys::ArithmeticXfermode; | |
70 value.set(kK0, SkValue::FromF32(fK[0])); | |
71 value.set(kK1, SkValue::FromF32(fK[1])); | |
72 value.set(kK2, SkValue::FromF32(fK[2])); | |
73 value.set(kK3, SkValue::FromF32(fK[3])); | |
74 value.set(kEnforcePMColor, SkValue::FromS32(fEnforcePMColor ? 1 : 0)); | |
75 return value; | |
76 } | |
77 | |
78 SkScalar fK[4]; | 65 SkScalar fK[4]; |
79 bool fEnforcePMColor; | 66 bool fEnforcePMColor; |
80 | 67 |
81 friend class SkArithmeticMode; | 68 friend class SkArithmeticMode; |
82 | 69 |
83 typedef SkXfermode INHERITED; | 70 typedef SkXfermode INHERITED; |
84 }; | 71 }; |
85 | 72 |
86 SkFlattenable* SkArithmeticMode_scalar::CreateProc(SkReadBuffer& buffer) { | 73 SkFlattenable* SkArithmeticMode_scalar::CreateProc(SkReadBuffer& buffer) { |
87 const SkScalar k1 = buffer.readScalar(); | 74 const SkScalar k1 = buffer.readScalar(); |
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279 fEnforcePMColor); | 266 fEnforcePMColor); |
280 } | 267 } |
281 return true; | 268 return true; |
282 } | 269 } |
283 | 270 |
284 #endif | 271 #endif |
285 | 272 |
286 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkArithmeticMode) | 273 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_START(SkArithmeticMode) |
287 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkArithmeticMode_scalar) | 274 SK_DEFINE_FLATTENABLE_REGISTRAR_ENTRY(SkArithmeticMode_scalar) |
288 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END | 275 SK_DEFINE_FLATTENABLE_REGISTRAR_GROUP_END |
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