blob: 5e1a4a9ec902e8ca123ba68266c7145e0b01caa5 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
|
/*
* Copyright 2017 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef SkSpotShadowMaskFilter_DEFINED
#define SkSpotShadowMaskFilter_DEFINED
#include "SkMaskFilter.h"
#include "SkShadowFlags.h"
/*
* This filter implements a shadow for an occluding object
* representing a displaced shadow from a point light.
*/
class SK_API SkSpotShadowMaskFilter {
public:
/** Create a shadow maskfilter.
* @param occluderHeight Height of occluding object off of ground plane.
* @param lightPos Position of the light applied to this object.
* @param lightRadius Radius of the light (light is assumed to be spherical).
* @param spotAlpha Base opacity of the displaced spot shadow.
* @param flags Flags to use - defaults to none
* @return The new shadow maskfilter
*/
static sk_sp<SkMaskFilter> Make(SkScalar occluderHeight, const SkPoint3& lightPos,
SkScalar lightRadius, SkScalar spotAlpha,
uint32_t flags = SkShadowFlags::kNone_ShadowFlag);
SK_DECLARE_FLATTENABLE_REGISTRAR_GROUP()
private:
SkSpotShadowMaskFilter(); // can't be instantiated
};
#endif
|
