epoger@google.com | ec3ed6a | 2011-07-28 14:26:00 +0000 | [diff] [blame] | 1 | |
| 2 | /* |
| 3 | * Copyright 2006 The Android Open Source Project |
| 4 | * |
| 5 | * Use of this source code is governed by a BSD-style license that can be |
| 6 | * found in the LICENSE file. |
| 7 | */ |
| 8 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 9 | |
| 10 | #include "Sk2DPathEffect.h" |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 11 | #include "SkReadBuffer.h" |
| 12 | #include "SkWriteBuffer.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 13 | #include "SkPath.h" |
reed@google.com | 6db9375 | 2012-08-09 19:18:02 +0000 | [diff] [blame] | 14 | #include "SkRegion.h" |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 15 | |
reed@google.com | 16edff2 | 2011-08-12 14:10:27 +0000 | [diff] [blame] | 16 | Sk2DPathEffect::Sk2DPathEffect(const SkMatrix& mat) : fMatrix(mat) { |
mike@reedtribe.org | 90bf427 | 2012-04-14 19:06:16 +0000 | [diff] [blame] | 17 | fMatrixIsInvertible = mat.invert(&fInverse); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 18 | } |
| 19 | |
reed@google.com | 548a1f3 | 2012-12-18 16:12:09 +0000 | [diff] [blame] | 20 | bool Sk2DPathEffect::filterPath(SkPath* dst, const SkPath& src, |
reed@google.com | 4bbdeac | 2013-01-24 21:03:11 +0000 | [diff] [blame] | 21 | SkStrokeRec*, const SkRect*) const { |
mike@reedtribe.org | 90bf427 | 2012-04-14 19:06:16 +0000 | [diff] [blame] | 22 | if (!fMatrixIsInvertible) { |
| 23 | return false; |
| 24 | } |
| 25 | |
reed@google.com | 6db9375 | 2012-08-09 19:18:02 +0000 | [diff] [blame] | 26 | SkPath tmp; |
| 27 | SkIRect ir; |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 28 | |
| 29 | src.transform(fInverse, &tmp); |
reed@android.com | d252db0 | 2009-04-01 18:31:44 +0000 | [diff] [blame] | 30 | tmp.getBounds().round(&ir); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 31 | if (!ir.isEmpty()) { |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 32 | this->begin(ir, dst); |
reed@google.com | 6db9375 | 2012-08-09 19:18:02 +0000 | [diff] [blame] | 33 | |
| 34 | SkRegion rgn; |
| 35 | rgn.setPath(tmp, SkRegion(ir)); |
| 36 | SkRegion::Iterator iter(rgn); |
| 37 | for (; !iter.done(); iter.next()) { |
| 38 | const SkIRect& rect = iter.rect(); |
| 39 | for (int y = rect.fTop; y < rect.fBottom; ++y) { |
| 40 | this->nextSpan(rect.fLeft, y, rect.width(), dst); |
| 41 | } |
| 42 | } |
| 43 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 44 | this->end(dst); |
| 45 | } |
| 46 | return true; |
| 47 | } |
| 48 | |
reed@google.com | 548a1f3 | 2012-12-18 16:12:09 +0000 | [diff] [blame] | 49 | void Sk2DPathEffect::nextSpan(int x, int y, int count, SkPath* path) const { |
mike@reedtribe.org | 90bf427 | 2012-04-14 19:06:16 +0000 | [diff] [blame] | 50 | if (!fMatrixIsInvertible) { |
| 51 | return; |
| 52 | } |
| 53 | |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 54 | const SkMatrix& mat = this->getMatrix(); |
| 55 | SkPoint src, dst; |
| 56 | |
| 57 | src.set(SkIntToScalar(x) + SK_ScalarHalf, SkIntToScalar(y) + SK_ScalarHalf); |
| 58 | do { |
| 59 | mat.mapPoints(&dst, &src, 1); |
| 60 | this->next(dst, x++, y, path); |
| 61 | src.fX += SK_Scalar1; |
| 62 | } while (--count > 0); |
| 63 | } |
| 64 | |
reed@google.com | 548a1f3 | 2012-12-18 16:12:09 +0000 | [diff] [blame] | 65 | void Sk2DPathEffect::begin(const SkIRect& uvBounds, SkPath* dst) const {} |
| 66 | void Sk2DPathEffect::next(const SkPoint& loc, int u, int v, SkPath* dst) const {} |
| 67 | void Sk2DPathEffect::end(SkPath* dst) const {} |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 68 | |
reed@google.com | 16edff2 | 2011-08-12 14:10:27 +0000 | [diff] [blame] | 69 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 70 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 71 | void Sk2DPathEffect::flatten(SkWriteBuffer& buffer) const { |
djsollen@google.com | 5492424 | 2012-03-29 15:18:04 +0000 | [diff] [blame] | 72 | this->INHERITED::flatten(buffer); |
djsollen@google.com | d2700ee | 2012-05-30 16:54:13 +0000 | [diff] [blame] | 73 | buffer.writeMatrix(fMatrix); |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 74 | } |
| 75 | |
robertphillips | 42dbfa8 | 2015-01-26 06:08:52 -0800 | [diff] [blame] | 76 | #ifndef SK_IGNORE_TO_STRING |
| 77 | void Sk2DPathEffect::toString(SkString* str) const { |
| 78 | str->appendf("(matrix: %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f %.2f)", |
| 79 | fMatrix[SkMatrix::kMScaleX], fMatrix[SkMatrix::kMSkewX], fMatrix[SkMatrix::kMTransX], |
| 80 | fMatrix[SkMatrix::kMSkewY], fMatrix[SkMatrix::kMScaleY], fMatrix[SkMatrix::kMTransY], |
| 81 | fMatrix[SkMatrix::kMPersp0], fMatrix[SkMatrix::kMPersp1], fMatrix[SkMatrix::kMPersp2]); |
| 82 | } |
| 83 | #endif |
| 84 | |
reed@google.com | e28b917 | 2011-08-09 18:14:31 +0000 | [diff] [blame] | 85 | /////////////////////////////////////////////////////////////////////////////// |
scroggo@google.com | d8a6cc8 | 2012-09-12 18:53:49 +0000 | [diff] [blame] | 86 | |
reed@google.com | 548a1f3 | 2012-12-18 16:12:09 +0000 | [diff] [blame] | 87 | bool SkLine2DPathEffect::filterPath(SkPath* dst, const SkPath& src, |
reed@google.com | 4bbdeac | 2013-01-24 21:03:11 +0000 | [diff] [blame] | 88 | SkStrokeRec* rec, const SkRect* cullRect) const { |
| 89 | if (this->INHERITED::filterPath(dst, src, rec, cullRect)) { |
scroggo@google.com | d8a6cc8 | 2012-09-12 18:53:49 +0000 | [diff] [blame] | 90 | rec->setStrokeStyle(fWidth); |
| 91 | return true; |
| 92 | } |
| 93 | return false; |
| 94 | } |
| 95 | |
reed@google.com | 548a1f3 | 2012-12-18 16:12:09 +0000 | [diff] [blame] | 96 | void SkLine2DPathEffect::nextSpan(int u, int v, int ucount, SkPath* dst) const { |
scroggo@google.com | d8a6cc8 | 2012-09-12 18:53:49 +0000 | [diff] [blame] | 97 | if (ucount > 1) { |
| 98 | SkPoint src[2], dstP[2]; |
| 99 | |
| 100 | src[0].set(SkIntToScalar(u) + SK_ScalarHalf, SkIntToScalar(v) + SK_ScalarHalf); |
| 101 | src[1].set(SkIntToScalar(u+ucount) + SK_ScalarHalf, SkIntToScalar(v) + SK_ScalarHalf); |
| 102 | this->getMatrix().mapPoints(dstP, src, 2); |
| 103 | |
| 104 | dst->moveTo(dstP[0]); |
| 105 | dst->lineTo(dstP[1]); |
| 106 | } |
| 107 | } |
| 108 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 109 | SkFlattenable* SkLine2DPathEffect::CreateProc(SkReadBuffer& buffer) { |
| 110 | SkMatrix matrix; |
| 111 | buffer.readMatrix(&matrix); |
| 112 | SkScalar width = buffer.readScalar(); |
| 113 | return SkLine2DPathEffect::Create(width, matrix); |
| 114 | } |
scroggo@google.com | d8a6cc8 | 2012-09-12 18:53:49 +0000 | [diff] [blame] | 115 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 116 | void SkLine2DPathEffect::flatten(SkWriteBuffer &buffer) const { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 117 | buffer.writeMatrix(this->getMatrix()); |
scroggo@google.com | d8a6cc8 | 2012-09-12 18:53:49 +0000 | [diff] [blame] | 118 | buffer.writeScalar(fWidth); |
| 119 | } |
| 120 | |
robertphillips | 42dbfa8 | 2015-01-26 06:08:52 -0800 | [diff] [blame] | 121 | |
| 122 | #ifndef SK_IGNORE_TO_STRING |
| 123 | void SkLine2DPathEffect::toString(SkString* str) const { |
| 124 | str->appendf("SkLine2DPathEffect: ("); |
| 125 | this->INHERITED::toString(str); |
| 126 | str->appendf("width: %f", fWidth); |
| 127 | str->appendf(")"); |
| 128 | } |
| 129 | #endif |
| 130 | |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 131 | /////////////////////////////////////////////////////////////////////////////// |
reed@android.com | 8a1c16f | 2008-12-17 15:59:43 +0000 | [diff] [blame] | 132 | |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 133 | SkPath2DPathEffect::SkPath2DPathEffect(const SkMatrix& m, const SkPath& p) |
| 134 | : INHERITED(m), fPath(p) { |
| 135 | } |
| 136 | |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 137 | SkFlattenable* SkPath2DPathEffect::CreateProc(SkReadBuffer& buffer) { |
| 138 | SkMatrix matrix; |
| 139 | buffer.readMatrix(&matrix); |
| 140 | SkPath path; |
| 141 | buffer.readPath(&path); |
| 142 | return SkPath2DPathEffect::Create(matrix, path); |
| 143 | } |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 144 | |
commit-bot@chromium.org | 8b0e8ac | 2014-01-30 18:58:24 +0000 | [diff] [blame] | 145 | void SkPath2DPathEffect::flatten(SkWriteBuffer& buffer) const { |
reed | 9fa60da | 2014-08-21 07:59:51 -0700 | [diff] [blame] | 146 | buffer.writeMatrix(this->getMatrix()); |
djsollen@google.com | 2b2ede3 | 2012-04-12 13:24:04 +0000 | [diff] [blame] | 147 | buffer.writePath(fPath); |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 148 | } |
| 149 | |
reed@google.com | 548a1f3 | 2012-12-18 16:12:09 +0000 | [diff] [blame] | 150 | void SkPath2DPathEffect::next(const SkPoint& loc, int u, int v, |
| 151 | SkPath* dst) const { |
reed@google.com | 18dc477 | 2011-08-09 18:47:40 +0000 | [diff] [blame] | 152 | dst->addPath(fPath, loc.fX, loc.fY); |
| 153 | } |
robertphillips | 42dbfa8 | 2015-01-26 06:08:52 -0800 | [diff] [blame] | 154 | |
| 155 | #ifndef SK_IGNORE_TO_STRING |
| 156 | void SkPath2DPathEffect::toString(SkString* str) const { |
| 157 | str->appendf("SkPath2DPathEffect: ("); |
| 158 | this->INHERITED::toString(str); |
| 159 | // TODO: print out path information |
| 160 | str->appendf(")"); |
| 161 | } |
| 162 | #endif |