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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 #include "SkLinearGradient.h" | 8 #include "SkLinearGradient.h" |
9 | 9 |
10 static inline int repeat_bits(int x, const int bits) { | 10 static inline int repeat_bits(int x, const int bits) { |
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45 SkScalar inv = mag ? SkScalarInvert(mag) : 0; | 45 SkScalar inv = mag ? SkScalarInvert(mag) : 0; |
46 | 46 |
47 vec.scale(inv); | 47 vec.scale(inv); |
48 matrix->setSinCos(-vec.fY, vec.fX, pts[0].fX, pts[0].fY); | 48 matrix->setSinCos(-vec.fY, vec.fX, pts[0].fX, pts[0].fY); |
49 matrix->postTranslate(-pts[0].fX, -pts[0].fY); | 49 matrix->postTranslate(-pts[0].fX, -pts[0].fY); |
50 matrix->postScale(inv, inv); | 50 matrix->postScale(inv, inv); |
51 } | 51 } |
52 | 52 |
53 /////////////////////////////////////////////////////////////////////////////// | 53 /////////////////////////////////////////////////////////////////////////////// |
54 | 54 |
55 SkLinearGradient::SkLinearGradient(const SkPoint pts[2], const Descriptor& desc, | 55 SkLinearGradient::SkLinearGradient(const SkPoint pts[2], const Descriptor& desc) |
56 const SkMatrix* localMatrix) | 56 : SkGradientShaderBase(desc) |
57 : SkGradientShaderBase(desc, localMatrix) | |
58 , fStart(pts[0]) | 57 , fStart(pts[0]) |
59 , fEnd(pts[1]) { | 58 , fEnd(pts[1]) |
| 59 { |
60 pts_to_unit_matrix(pts, &fPtsToUnit); | 60 pts_to_unit_matrix(pts, &fPtsToUnit); |
61 } | 61 } |
62 | 62 |
63 SkLinearGradient::SkLinearGradient(SkReadBuffer& buffer) | 63 SkLinearGradient::SkLinearGradient(SkReadBuffer& buffer) |
64 : INHERITED(buffer) | 64 : INHERITED(buffer) |
65 , fStart(buffer.readPoint()) | 65 , fStart(buffer.readPoint()) |
66 , fEnd(buffer.readPoint()) { | 66 , fEnd(buffer.readPoint()) { |
67 } | 67 } |
68 | 68 |
69 void SkLinearGradient::flatten(SkWriteBuffer& buffer) const { | 69 void SkLinearGradient::flatten(SkWriteBuffer& buffer) const { |
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592 str->append("SkLinearGradient ("); | 592 str->append("SkLinearGradient ("); |
593 | 593 |
594 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); | 594 str->appendf("start: (%f, %f)", fStart.fX, fStart.fY); |
595 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); | 595 str->appendf(" end: (%f, %f) ", fEnd.fX, fEnd.fY); |
596 | 596 |
597 this->INHERITED::toString(str); | 597 this->INHERITED::toString(str); |
598 | 598 |
599 str->append(")"); | 599 str->append(")"); |
600 } | 600 } |
601 #endif | 601 #endif |
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