1/**
2 * Copyright (c) 2006-2023 LOVE Development Team
3 *
4 * This software is provided 'as-is', without any express or implied
5 * warranty. In no event will the authors be held liable for any damages
6 * arising from the use of this software.
7 *
8 * Permission is granted to anyone to use this software for any purpose,
9 * including commercial applications, and to alter it and redistribute it
10 * freely, subject to the following restrictions:
11 *
12 * 1. The origin of this software must not be misrepresented; you must not
13 * claim that you wrote the original software. If you use this software
14 * in a product, an acknowledgment in the product documentation would be
15 * appreciated but is not required.
16 * 2. Altered source versions must be plainly marked as such, and must not be
17 * misrepresented as being the original software.
18 * 3. This notice may not be removed or altered from any source distribution.
19 **/
20
21#include "depthstencil.h"
22#include "common/StringMap.h"
23
24namespace love
25{
26namespace graphics
27{
28
29CompareMode getReversedCompareMode(CompareMode mode)
30{
31 switch (mode)
32 {
33 case COMPARE_LESS:
34 return COMPARE_GREATER;
35 case COMPARE_LEQUAL:
36 return COMPARE_GEQUAL;
37 case COMPARE_GEQUAL:
38 return COMPARE_LEQUAL;
39 case COMPARE_GREATER:
40 return COMPARE_LESS;
41 default:
42 return mode;
43 }
44}
45
46static StringMap<StencilAction, STENCIL_MAX_ENUM>::Entry stencilActionEntries[] =
47{
48 { "replace", STENCIL_REPLACE },
49 { "increment", STENCIL_INCREMENT },
50 { "decrement", STENCIL_DECREMENT },
51 { "incrementwrap", STENCIL_INCREMENT_WRAP },
52 { "decrementwrap", STENCIL_DECREMENT_WRAP },
53 { "invert", STENCIL_INVERT },
54};
55
56static StringMap<StencilAction, STENCIL_MAX_ENUM> stencilActions(stencilActionEntries, sizeof(stencilActionEntries));
57
58static StringMap<CompareMode, COMPARE_MAX_ENUM>::Entry compareModeEntries[] =
59{
60 { "less", COMPARE_LESS },
61 { "lequal", COMPARE_LEQUAL },
62 { "equal", COMPARE_EQUAL },
63 { "gequal", COMPARE_GEQUAL },
64 { "greater", COMPARE_GREATER },
65 { "notequal", COMPARE_NOTEQUAL },
66 { "always", COMPARE_ALWAYS },
67 { "never", COMPARE_NEVER },
68};
69
70static StringMap<CompareMode, COMPARE_MAX_ENUM> compareModes(compareModeEntries, sizeof(compareModeEntries));
71
72bool getConstant(const char *in, StencilAction &out)
73{
74 return stencilActions.find(in, out);
75}
76
77bool getConstant(StencilAction in, const char *&out)
78{
79 return stencilActions.find(in, out);
80}
81
82std::vector<std::string> getConstants(StencilAction)
83{
84 return stencilActions.getNames();
85}
86
87bool getConstant(const char *in, CompareMode &out)
88{
89 return compareModes.find(in, out);
90}
91
92bool getConstant(CompareMode in, const char *&out)
93{
94 return compareModes.find(in, out);
95}
96
97std::vector<std::string> getConstants(CompareMode)
98{
99 return compareModes.getNames();
100}
101
102} // graphics
103} // love
104