1 /*
2 * Copyright 2015 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 #include "GrDrawOpTest.h"
9 #include "GrCaps.h"
10 #include "GrContext.h"
11 #include "GrUserStencilSettings.h"
12 #include "SkRandom.h"
13 #include "SkTypes.h"
14
15 #if GR_TEST_UTILS
16
GrGetRandomStencil(SkRandom * random,GrContext * context)17 const GrUserStencilSettings* GrGetRandomStencil(SkRandom* random, GrContext* context) {
18 if (context->caps()->avoidStencilBuffers()) {
19 return &GrUserStencilSettings::kUnused;
20 }
21 static constexpr GrUserStencilSettings kReads(
22 GrUserStencilSettings::StaticInit<
23 0x8080,
24 GrUserStencilTest::kLess,
25 0xffff,
26 GrUserStencilOp::kKeep,
27 GrUserStencilOp::kKeep,
28 0xffff>()
29 );
30 static constexpr GrUserStencilSettings kWrites(
31 GrUserStencilSettings::StaticInit<
32 0xffff,
33 GrUserStencilTest::kAlways,
34 0xffff,
35 GrUserStencilOp::kReplace,
36 GrUserStencilOp::kReplace,
37 0xffff>()
38 );
39 static constexpr GrUserStencilSettings kReadsAndWrites(
40 GrUserStencilSettings::StaticInit<
41 0x8000,
42 GrUserStencilTest::kEqual,
43 0x6000,
44 GrUserStencilOp::kIncWrap,
45 GrUserStencilOp::kInvert,
46 0x77ff>()
47 );
48
49 static const GrUserStencilSettings* kStencilSettings[] = {
50 &GrUserStencilSettings::kUnused,
51 &kReads,
52 &kWrites,
53 &kReadsAndWrites,
54 };
55 return kStencilSettings[random->nextULessThan(SK_ARRAY_COUNT(kStencilSettings))];
56 }
57
58 #endif
59