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 "include/core/SkTypes.h"
9#include "include/private/GrContext_Base.h"
10#include "include/utils/SkRandom.h"
11#include "src/gpu/GrBaseContextPriv.h"
12#include "src/gpu/GrCaps.h"
13#include "src/gpu/GrDrawOpTest.h"
14#include "src/gpu/GrUserStencilSettings.h"
15
16#if GR_TEST_UTILS
17
18const GrUserStencilSettings* GrGetRandomStencil(SkRandom* random, GrContext_Base* context) {
19 if (context->priv().caps()->avoidStencilBuffers()) {
20 return &GrUserStencilSettings::kUnused;
21 }
22 static constexpr GrUserStencilSettings kReads(
23 GrUserStencilSettings::StaticInit<
24 0x8080,
25 GrUserStencilTest::kLess,
26 0xffff,
27 GrUserStencilOp::kKeep,
28 GrUserStencilOp::kKeep,
29 0xffff>()
30 );
31 static constexpr GrUserStencilSettings kWrites(
32 GrUserStencilSettings::StaticInit<
33 0xffff,
34 GrUserStencilTest::kAlways,
35 0xffff,
36 GrUserStencilOp::kReplace,
37 GrUserStencilOp::kReplace,
38 0xffff>()
39 );
40 static constexpr GrUserStencilSettings kReadsAndWrites(
41 GrUserStencilSettings::StaticInit<
42 0x8000,
43 GrUserStencilTest::kEqual,
44 0x6000,
45 GrUserStencilOp::kIncWrap,
46 GrUserStencilOp::kInvert,
47 0x77ff>()
48 );
49
50 static const GrUserStencilSettings* kStencilSettings[] = {
51 &GrUserStencilSettings::kUnused,
52 &kReads,
53 &kWrites,
54 &kReadsAndWrites,
55 };
56 return kStencilSettings[random->nextULessThan(SK_ARRAY_COUNT(kStencilSettings))];
57}
58
59#endif
60