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1 /* | 1 /* |
2 * Copyright 2015 Google Inc. | 2 * Copyright 2015 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 SkPM_DEFINED | 8 #ifndef SkPM_DEFINED |
9 #define SkPM_DEFINED | 9 #define SkPM_DEFINED |
10 | 10 |
(...skipping 10 matching lines...) Expand all Loading... |
21 namespace { | 21 namespace { |
22 | 22 |
23 // A pre-multiplied color storing each component in the same order as SkPMColor, | 23 // A pre-multiplied color storing each component in the same order as SkPMColor, |
24 // but as a float in the range [0, 1]. | 24 // but as a float in the range [0, 1]. |
25 class SkPMFloat : public Sk4f { | 25 class SkPMFloat : public Sk4f { |
26 public: | 26 public: |
27 static SkPMFloat FromPMColor(SkPMColor c) { return SkPMFloat(c); } | 27 static SkPMFloat FromPMColor(SkPMColor c) { return SkPMFloat(c); } |
28 static SkPMFloat FromARGB(float a, float r, float g, float b) { return SkPMF
loat(a,r,g,b); } | 28 static SkPMFloat FromARGB(float a, float r, float g, float b) { return SkPMF
loat(a,r,g,b); } |
29 static SkPMFloat FromOpaqueColor(SkColor c); // Requires c's alpha == 0xFF. | 29 static SkPMFloat FromOpaqueColor(SkColor c); // Requires c's alpha == 0xFF. |
30 | 30 |
31 Sk4f alphas() const; // argb -> aaaa, generally faster than the equivalent
Sk4f(this->a()). | 31 Sk4f alphas() const { return Sk4f(this->a()); } |
32 | 32 |
33 // Uninitialized. | 33 // Uninitialized. |
34 SkPMFloat() {} | 34 SkPMFloat() {} |
35 explicit SkPMFloat(SkPMColor); | 35 explicit SkPMFloat(SkPMColor c) { *this = Sk4f::FromBytes((uint8_t*)&c) * Sk
4f(1.0f/255); } |
36 SkPMFloat(float a, float r, float g, float b) | 36 SkPMFloat(float a, float r, float g, float b) |
37 #ifdef SK_PMCOLOR_IS_RGBA | 37 #ifdef SK_PMCOLOR_IS_RGBA |
38 : INHERITED(r,g,b,a) {} | 38 : INHERITED(r,g,b,a) {} |
39 #else | 39 #else |
40 : INHERITED(b,g,r,a) {} | 40 : INHERITED(b,g,r,a) {} |
41 #endif | 41 #endif |
42 | 42 |
43 SkPMFloat(const Sk4f& fs) : INHERITED(fs) {} | 43 SkPMFloat(const Sk4f& fs) : INHERITED(fs) {} |
44 | 44 |
45 float a() const { return this->kth<SK_A32_SHIFT / 8>(); } | 45 float a() const { return this->kth<SK_A32_SHIFT / 8>(); } |
46 float r() const { return this->kth<SK_R32_SHIFT / 8>(); } | 46 float r() const { return this->kth<SK_R32_SHIFT / 8>(); } |
47 float g() const { return this->kth<SK_G32_SHIFT / 8>(); } | 47 float g() const { return this->kth<SK_G32_SHIFT / 8>(); } |
48 float b() const { return this->kth<SK_B32_SHIFT / 8>(); } | 48 float b() const { return this->kth<SK_B32_SHIFT / 8>(); } |
49 | 49 |
50 SkPMColor round() const; // Rounds from [0.0f, 1.0f] to [0, 255], clamping
if out of range. | 50 SkPMColor round() const { |
| 51 SkPMColor c; |
| 52 (*this * Sk4f(255) + Sk4f(0.5f)).toBytes((uint8_t*)&c); |
| 53 return c; |
| 54 } |
51 | 55 |
52 bool isValid() const { | 56 bool isValid() const { |
53 return this->a() >= 0 && this->a() <= 1 | 57 return this->a() >= 0 && this->a() <= 1 |
54 && this->r() >= 0 && this->r() <= this->a() | 58 && this->r() >= 0 && this->r() <= this->a() |
55 && this->g() >= 0 && this->g() <= this->a() | 59 && this->g() >= 0 && this->g() <= this->a() |
56 && this->b() >= 0 && this->b() <= this->a(); | 60 && this->b() >= 0 && this->b() <= this->a(); |
57 } | 61 } |
58 | 62 |
59 private: | 63 private: |
60 typedef Sk4f INHERITED; | 64 typedef Sk4f INHERITED; |
61 }; | 65 }; |
62 | 66 |
63 } // namespace | 67 } // namespace |
64 | 68 |
65 #ifdef SKNX_NO_SIMD | |
66 // Platform implementations of SkPMFloat assume Sk4f uses SSE or NEON. _non
e is generic. | |
67 #include "../opts/SkPMFloat_none.h" | |
68 #else | |
69 #if SK_CPU_SSE_LEVEL >= SK_CPU_SSE_LEVEL_SSE2 | |
70 #include "../opts/SkPMFloat_sse.h" | |
71 #elif defined(SK_ARM_HAS_NEON) | |
72 #include "../opts/SkPMFloat_neon.h" | |
73 #else | |
74 #include "../opts/SkPMFloat_none.h" | |
75 #endif | |
76 #endif | |
77 | |
78 #endif//SkPM_DEFINED | 69 #endif//SkPM_DEFINED |
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