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gerrit-public.fairphone.software / platform / external / skia / d4c29709ca07e272898d839d14e7849aaa97487c / . / src / gpu / ops / GrPathStencilSettings.h
blob: 10e6dddab33eb9a104475f07c4a7ee7fc8cb9a20 [file] [log] [blame]
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]1/*
2 * Copyright 2016 Google Inc.
3 *
4 * Use of this source code is governed by a BSD-style license that can be
5 * found in the LICENSE file.
6 */
7
8#ifndef GrPathStencilSettings_DEFINED
9#define GrPathStencilSettings_DEFINED
10
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]11#include "GrUserStencilSettings.h"
12
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]13////////////////////////////////////////////////////////////////////////////////
14// Stencil rules for paths
15
16////// Even/Odd
17
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]18static constexpr GrUserStencilSettings gEOStencilPass(
19 GrUserStencilSettings::StaticInit<
20 0xffff,
21 GrUserStencilTest::kAlwaysIfInClip,
22 0xffff,
23 GrUserStencilOp::kInvert,
24 GrUserStencilOp::kKeep,
25 0xffff>()
26);
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]27
28// ok not to check clip b/c stencil pass only wrote inside clip
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]29static constexpr GrUserStencilSettings gEOColorPass(
30 GrUserStencilSettings::StaticInit<
31 0x0000,
32 GrUserStencilTest::kNotEqual,
33 0xffff,
34 GrUserStencilOp::kZero,
35 GrUserStencilOp::kZero,
36 0xffff>()
37);
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]38
39// have to check clip b/c outside clip will always be zero.
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]40static constexpr GrUserStencilSettings gInvEOColorPass(
41 GrUserStencilSettings::StaticInit<
42 0x0000,
43 GrUserStencilTest::kEqualIfInClip,
44 0xffff,
45 GrUserStencilOp::kZero,
46 GrUserStencilOp::kZero,
47 0xffff>()
48);
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]49
50////// Winding
51
Brian Salomon15b25092017-05-08 11:10:53 -0400[diff] [blame]52static constexpr GrUserStencilSettings gWindStencilPass (
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]53 GrUserStencilSettings::StaticInitSeparate<
54 0xffff, 0xffff,
55 GrUserStencilTest::kAlwaysIfInClip, GrUserStencilTest::kAlwaysIfInClip,
56 0xffff, 0xffff,
57 GrUserStencilOp::kIncWrap, GrUserStencilOp::kDecWrap,
58 GrUserStencilOp::kKeep, GrUserStencilOp::kKeep,
59 0xffff, 0xffff>()
60);
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]61
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]62static constexpr GrUserStencilSettings gWindColorPass(
63 GrUserStencilSettings::StaticInit<
64 0x0000,
65 GrUserStencilTest::kLessIfInClip, // "0 < stencil" is equivalent to "0 != stencil".
66 0xffff,
67 GrUserStencilOp::kZero,
68 GrUserStencilOp::kZero,
69 0xffff>()
70);
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]71
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]72static constexpr GrUserStencilSettings gInvWindColorPass(
73 GrUserStencilSettings::StaticInit<
74 0x0000,
75 GrUserStencilTest::kEqualIfInClip,
76 0xffff,
77 GrUserStencilOp::kZero,
78 GrUserStencilOp::kZero,
79 0xffff>()
80);
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]81
82////// Normal render to stencil
83
84// Sometimes the default path renderer can draw a path directly to the stencil
85// buffer without having to first resolve the interior / exterior.
cdalton93a379b2016-05-11 13:58:08 -0700[diff] [blame]86static constexpr GrUserStencilSettings gDirectToStencil(
87 GrUserStencilSettings::StaticInit<
88 0x0000,
89 GrUserStencilTest::kAlwaysIfInClip,
90 0xffff,
91 GrUserStencilOp::kZero,
92 GrUserStencilOp::kIncMaybeClamp,
93 0xffff>()
94);
ethannicholas6536ae52016-05-02 12:16:49 -0700[diff] [blame]95
96#endif