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1 /* | 1 /* |
2 * Copyright 2014 Google Inc. | 2 * Copyright 2014 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 "GrDashingEffect.h" | 8 #include "GrDashingEffect.h" |
9 | 9 |
10 #include "gl/GrGLEffect.h" | 10 #include "gl/GrGLEffect.h" |
11 #include "gl/GrGLSL.h" | 11 #include "gl/GrGLSL.h" |
12 #include "GrContext.h" | 12 #include "GrContext.h" |
13 #include "GrCoordTransform.h" | 13 #include "GrCoordTransform.h" |
14 #include "GrDrawTargetCaps.h" | 14 #include "GrDrawTargetCaps.h" |
15 #include "GrEffect.h" | 15 #include "GrEffect.h" |
16 #include "GrTBackendEffectFactory.h" | 16 #include "GrTBackendEffectFactory.h" |
17 #include "SkGpuDevice.h" | |
18 #include "SkGr.h" | 17 #include "SkGr.h" |
19 | 18 |
20 /////////////////////////////////////////////////////////////////////////////// | 19 /////////////////////////////////////////////////////////////////////////////// |
21 | 20 |
22 static void calc_dash_scaling(SkScalar* parallelScale, SkScalar* perpScale, | 21 static void calc_dash_scaling(SkScalar* parallelScale, SkScalar* perpScale, |
23 const SkMatrix& viewMatrix, const SkPoint pts[2]) { | 22 const SkMatrix& viewMatrix, const SkPoint pts[2]) { |
24 SkVector vecSrc = pts[1] - pts[0]; | 23 SkVector vecSrc = pts[1] - pts[0]; |
25 SkScalar magSrc = vecSrc.length(); | 24 SkScalar magSrc = vecSrc.length(); |
26 SkScalar invSrc = magSrc ? SkScalarInvert(magSrc) : 0; | 25 SkScalar invSrc = magSrc ? SkScalarInvert(magSrc) : 0; |
27 vecSrc.scale(invSrc); | 26 vecSrc.scale(invSrc); |
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80 if (*endingInt > info.fIntervals[0]) { | 79 if (*endingInt > info.fIntervals[0]) { |
81 if (0 == info.fIntervals[0]) { | 80 if (0 == info.fIntervals[0]) { |
82 *endingInt -= 0.01f; // make sure we capture the last zero size pnt
(used if has caps) | 81 *endingInt -= 0.01f; // make sure we capture the last zero size pnt
(used if has caps) |
83 } | 82 } |
84 return *endingInt - info.fIntervals[0]; | 83 return *endingInt - info.fIntervals[0]; |
85 } | 84 } |
86 return 0; | 85 return 0; |
87 } | 86 } |
88 | 87 |
89 | 88 |
90 bool GrDashingEffect::DrawDashLine(const SkPoint pts[2], const SkPaint& paint, S
kGpuDevice* dev) { | 89 bool GrDashingEffect::DrawDashLine(const SkPoint pts[2], const SkPaint& paint, G
rContext* context) { |
91 GrContext* context = dev->context(); | |
92 if (context->getRenderTarget()->isMultisampled()) { | 90 if (context->getRenderTarget()->isMultisampled()) { |
93 return false; | 91 return false; |
94 } | 92 } |
95 | 93 |
96 const SkMatrix& viewMatrix = context->getMatrix(); | 94 const SkMatrix& viewMatrix = context->getMatrix(); |
97 if (!viewMatrix.preservesRightAngles()) { | 95 if (!viewMatrix.preservesRightAngles()) { |
98 return false; | 96 return false; |
99 } | 97 } |
100 | 98 |
101 const SkPathEffect* pe = paint.getPathEffect(); | 99 const SkPathEffect* pe = paint.getPathEffect(); |
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132 if(!coordTrans.invert(&srcRotInv)) { | 130 if(!coordTrans.invert(&srcRotInv)) { |
133 return false; | 131 return false; |
134 } | 132 } |
135 } else { | 133 } else { |
136 coordTrans.reset(); | 134 coordTrans.reset(); |
137 srcRotInv.reset(); | 135 srcRotInv.reset(); |
138 memcpy(ptsRot, pts, 2 * sizeof(SkPoint)); | 136 memcpy(ptsRot, pts, 2 * sizeof(SkPoint)); |
139 } | 137 } |
140 | 138 |
141 GrPaint grPaint; | 139 GrPaint grPaint; |
142 SkPaint2GrPaintShader(dev, paint, true, &grPaint); | 140 SkPaint2GrPaintShader(context, paint, true, &grPaint); |
143 | 141 |
144 bool useAA = paint.isAntiAlias(); | 142 bool useAA = paint.isAntiAlias(); |
145 | 143 |
146 // Scale corrections of intervals and stroke from view matrix | 144 // Scale corrections of intervals and stroke from view matrix |
147 SkScalar parallelScale; | 145 SkScalar parallelScale; |
148 SkScalar perpScale; | 146 SkScalar perpScale; |
149 calc_dash_scaling(¶llelScale, &perpScale, viewMatrix, ptsRot); | 147 calc_dash_scaling(¶llelScale, &perpScale, viewMatrix, ptsRot); |
150 | 148 |
151 bool hasCap = SkPaint::kSquare_Cap == cap && 0 != srcStrokeWidth; | 149 bool hasCap = SkPaint::kSquare_Cap == cap && 0 != srcStrokeWidth; |
152 | 150 |
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488 effect = DashingLineEffect::Create(edgeType, info, m, strokeWidth); | 486 effect = DashingLineEffect::Create(edgeType, info, m, strokeWidth); |
489 return effect; | 487 return effect; |
490 } | 488 } |
491 | 489 |
492 ////////////////////////////////////////////////////////////////////////////// | 490 ////////////////////////////////////////////////////////////////////////////// |
493 | 491 |
494 GrEffectRef* GrDashingEffect::Create(GrEffectEdgeType edgeType, const SkPathEffe
ct::DashInfo& info, | 492 GrEffectRef* GrDashingEffect::Create(GrEffectEdgeType edgeType, const SkPathEffe
ct::DashInfo& info, |
495 const SkMatrix& matrix, SkScalar strokeWidt
h) { | 493 const SkMatrix& matrix, SkScalar strokeWidt
h) { |
496 return DashingLineEffect::Create(edgeType, info, matrix, strokeWidth); | 494 return DashingLineEffect::Create(edgeType, info, matrix, strokeWidth); |
497 } | 495 } |
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