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
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
|
// slang-hlsl-to-vulkan-layout-options.cpp
#include "slang-hlsl-to-vulkan-layout-options.h"
#include "slang-compiler-options.h"
namespace Slang
{
namespace
{ // anonymous
typedef HLSLToVulkanLayoutOptions::Kind ShiftKind;
/* {b|s|t|u}
https://github.com/KhronosGroup/glslang/wiki/HLSL-FAQ
*/
static NamesDescriptionValue s_vulkanShiftKinds[] = {
{ValueInt(ShiftKind::ConstantBuffer), "b", "Constant buffer view"},
{ValueInt(ShiftKind::Sampler), "s", "Sampler"},
{ValueInt(ShiftKind::ShaderResource), "t", "Shader resource view"},
{ValueInt(ShiftKind::UnorderedAccess), "u", "Unorderd access view"},
};
} // namespace
/* static */ ConstArrayView<NamesDescriptionValue> HLSLToVulkanLayoutOptions::getKindInfos()
{
return makeConstArrayView(s_vulkanShiftKinds);
}
void HLSLToVulkanLayoutOptions::loadFromOptionSet(CompilerOptionSet& optionSet)
{
auto allShift = optionSet.getArray(CompilerOptionName::VulkanBindShiftAll);
for (auto v : allShift)
{
setAllShift((Kind)v.intValue, v.intValue2);
}
auto shifts = optionSet.getArray(CompilerOptionName::VulkanBindShift);
for (auto v : shifts)
{
uint8_t kind;
int set;
int shift;
v.unpackInt3(kind, set, shift);
setShift((Kind)kind, set, shift);
}
m_emitSPIRVReflectionInfo = optionSet.getBoolOption(CompilerOptionName::VulkanEmitReflection);
if (auto bindGlobals = optionSet.options.tryGetValue(CompilerOptionName::VulkanBindGlobals))
{
if (bindGlobals->getCount())
{
m_globalsBinding.index = (*bindGlobals)[0].intValue;
m_globalsBinding.set = (*bindGlobals)[0].intValue2;
}
}
m_useGLLayout = optionSet.getBoolOption(CompilerOptionName::VulkanUseGLLayout);
m_useOriginalEntryPointName =
optionSet.getBoolOption(CompilerOptionName::VulkanUseEntryPointName);
}
HLSLToVulkanLayoutOptions::HLSLToVulkanLayoutOptions()
{
// Clear the all shifts
for (auto& shift : m_allShifts)
{
shift = kInvalidShift;
}
SLANG_ASSERT(isReset());
}
void HLSLToVulkanLayoutOptions::setGlobalsBinding(const Binding& binding)
{
m_globalsBinding = binding;
}
void HLSLToVulkanLayoutOptions::reset()
{
m_kindShiftEnabledFlags = 0;
for (auto& shift : m_allShifts)
{
shift = kInvalidShift;
}
m_shifts.clear();
}
void HLSLToVulkanLayoutOptions::setAllShift(Kind kind, Index shift)
{
SLANG_ASSERT(shift != kInvalidShift);
m_allShifts[Index(kind)] = shift;
_enableShiftForKind(kind);
}
void HLSLToVulkanLayoutOptions::setShift(Kind kind, Index set, Index shift)
{
SLANG_ASSERT(shift != kInvalidShift);
Key key{kind, set};
m_shifts.set(key, shift);
_enableShiftForKind(kind);
}
Index HLSLToVulkanLayoutOptions::getShift(Kind kind, Index set) const
{
if (canInferBindingForKind(kind))
{
// We lookup a shift for a set first as this shift is "more specific" and
// is seen as taken precedent over the "all" scenario
if (auto ptr = m_shifts.tryGetValue(Key{kind, set}))
{
return *ptr;
}
// Must have an `all` shift
return m_allShifts[Index(kind)];
}
return kInvalidShift;
}
bool HLSLToVulkanLayoutOptions::hasState() const
{
return canInferBindings() || hasGlobalsBinding() || getUseOriginalEntryPointName() ||
shouldUseGLLayout() || shouldEmitSPIRVReflectionInfo();
}
HLSLToVulkanLayoutOptions::Binding HLSLToVulkanLayoutOptions::inferBinding(
Kind kind,
const Binding& inBinding) const
{
auto shift = getShift(kind, inBinding.set);
if (shift != kInvalidShift)
{
Binding binding(inBinding);
binding.index += shift;
return binding;
}
// Else return an invalid binding
return Binding();
}
/* static */ HLSLToVulkanLayoutOptions::Kind HLSLToVulkanLayoutOptions::getKind(
slang::ParameterCategory param)
{
typedef slang::ParameterCategory ParameterCategory;
switch (param)
{
case ParameterCategory::Mixed:
{
// TODO(JS):
// Hmm, is this TextureSampler?
return Kind::Invalid;
}
case ParameterCategory::Uniform:
case ParameterCategory::ConstantBuffer:
{
return Kind::ConstantBuffer;
}
case ParameterCategory::ShaderResource:
return Kind::ShaderResource;
case ParameterCategory::UnorderedAccess:
return Kind::UnorderedAccess;
case ParameterCategory::SamplerState:
return Kind::Sampler;
default:
{
return Kind::Invalid;
}
}
}
} // namespace Slang
|
