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Side by Side Diff: src/gpu/effects/GrDashingEffect.h

Issue 892203003: Dash using vertex attributes for interval and stroke width (Closed) Base URL: https://skia.googlesource.com/skia.git@master
Patch Set: dashing Created 5 years, 10 months ago
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1 1
2 /* 2 /*
3 * Copyright 2014 Google Inc. 3 * Copyright 2014 Google Inc.
4 * 4 *
5 * Use of this source code is governed by a BSD-style license that can be 5 * Use of this source code is governed by a BSD-style license that can be
6 * found in the LICENSE file. 6 * found in the LICENSE file.
7 */ 7 */
8 8
9 #ifndef GrDashingEffect_DEFINED 9 #ifndef GrDashingEffect_DEFINED
10 #define GrDashingEffect_DEFINED 10 #define GrDashingEffect_DEFINED
11 11
12 #include "GrColor.h" 12 #include "GrColor.h"
13 #include "GrTypesPriv.h" 13 #include "GrTypesPriv.h"
14 #include "SkPathEffect.h" 14 #include "SkPathEffect.h"
15 15
16 class GrGpu; 16 class GrGpu;
17 class GrDrawTarget; 17 class GrDrawTarget;
18 class GrGeometryProcessor;
19 class GrPaint; 18 class GrPaint;
20 class GrPipelineBuilder; 19 class GrPipelineBuilder;
21 class GrStrokeInfo; 20 class GrStrokeInfo;
22 21
23 class GrGLDashingEffect;
24 class SkPath;
25
26 namespace GrDashingEffect { 22 namespace GrDashingEffect {
27 bool DrawDashLine(GrGpu*, GrDrawTarget*, GrPipelineBuilder*, GrColor, 23 bool DrawDashLine(GrGpu*, GrDrawTarget*, GrPipelineBuilder*, GrColor,
28 const SkMatrix& viewMatrix, const SkPoint pts[2], const Gr Paint& paint, 24 const SkMatrix& viewMatrix, const SkPoint pts[2], const Gr Paint& paint,
29 const GrStrokeInfo& strokeInfo); 25 const GrStrokeInfo& strokeInfo);
30
31 enum DashCap {
32 kRound_DashCap,
33 kNonRound_DashCap,
34 };
35
36 /**
37 * An effect that renders a dashed line. It is intended to be used as a cove rage effect.
38 * The effect is meant for dashed lines that only have a single on/off inter val pair.
39 * Bounding geometry is rendered and the effect computes coverage based on t he fragment's
40 * position relative to the dashed line.
41 */
42 GrGeometryProcessor* Create(GrColor,
43 GrPrimitiveEdgeType edgeType,
44 const SkPathEffect::DashInfo& info,
45 SkScalar strokeWidth,
46 DashCap cap,
47 const SkMatrix& localMatrix);
48 } 26 }
49 27
50 #endif 28 #endif
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