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
|
/*
* Copyright 2010, The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "slang_rs_export_element.h"
#include "clang/AST/Decl.h"
#include "clang/AST/Type.h"
#include "clang/Basic/SourceLocation.h"
#include "clang/Basic/IdentifierTable.h"
#include "slang_assert.h"
#include "slang_rs_context.h"
#include "slang_rs_export_type.h"
namespace slang {
bool RSExportElement::Initialized = false;
RSExportElement::ElementInfoMapTy RSExportElement::ElementInfoMap;
struct DataElementInfo {
const char *name;
DataType dataType;
bool normalized;
int vsize;
};
static DataElementInfo DataElementInfoTable[] = {
{"rs_pixel_l", DataTypeUnsigned8, true, 1},
{"rs_pixel_a", DataTypeUnsigned8, true, 1},
{"rs_pixel_la", DataTypeUnsigned8, true, 2},
{"rs_pixel_rgb", DataTypeUnsigned8, true, 3},
{"rs_pixel_rgba", DataTypeUnsigned8, true, 4},
{"rs_pixel_rgb565", DataTypeUnsigned8, true, 3},
{"rs_pixel_rgb5551", DataTypeUnsigned8, true, 4},
{"rs_pixel_rgb4444", DataTypeUnsigned8, true, 4},
};
const int DataElementInfoTableCount = sizeof(DataElementInfoTable) / sizeof(DataElementInfoTable[0]);
// TODO Rename RSExportElement to RSExportDataElement
void RSExportElement::Init() {
if (!Initialized) {
// Initialize ElementInfoMap
for (int i = 0; i < DataElementInfoTableCount; i++) {
ElementInfo *EI = new ElementInfo;
EI->type = DataElementInfoTable[i].dataType;
EI->normalized = DataElementInfoTable[i].normalized;
EI->vsize = DataElementInfoTable[i].vsize;
llvm::StringRef Name(DataElementInfoTable[i].name);
ElementInfoMap.insert(ElementInfoMapTy::value_type::Create(
Name, ElementInfoMap.getAllocator(), EI));
}
Initialized = true;
}
}
RSExportType *RSExportElement::Create(RSContext *Context,
const clang::Type *T,
const ElementInfo *EI) {
// Create RSExportType corresponded to the @T first and then verify
llvm::StringRef TypeName;
RSExportType *ET = nullptr;
if (!Initialized)
Init();
slangAssert(EI != nullptr && "Element info not found");
if (!RSExportType::NormalizeType(T, TypeName, Context, nullptr))
return nullptr;
switch (T->getTypeClass()) {
case clang::Type::Builtin:
case clang::Type::Pointer: {
slangAssert(EI->vsize == 1 && "Element not a primitive class (please "
"check your macro)");
RSExportPrimitiveType *EPT =
RSExportPrimitiveType::Create(Context,
T,
TypeName,
EI->normalized);
// Verify
slangAssert(EI->type == EPT->getType() && "Element has unexpected type");
ET = EPT;
break;
}
case clang::Type::ExtVector: {
slangAssert(EI->vsize > 1 && "Element not a vector class (please check "
"your macro)");
RSExportVectorType *EVT =
RSExportVectorType::Create(Context,
static_cast<const clang::ExtVectorType*>(
T->getCanonicalTypeInternal()
.getTypePtr()),
TypeName,
EI->normalized);
// Verify
slangAssert(EI->type == EVT->getType() && "Element has unexpected type");
slangAssert(EI->vsize == EVT->getNumElement() && "Element has unexpected "
"size of vector");
ET = EVT;
break;
}
default: {
// TODO(zonr): warn that type is not exportable
fprintf(stderr, "RSExportElement::Create : type '%s' is not exportable\n",
T->getTypeClassName());
break;
}
}
return ET;
}
RSExportType *RSExportElement::CreateFromDecl(RSContext *Context,
const clang::DeclaratorDecl *DD) {
const clang::Type* T = RSExportType::GetTypeOfDecl(DD);
const clang::Type* CT = GetCanonicalType(T);
const ElementInfo* EI = nullptr;
// Note: RS element like rs_pixel_rgb elements are either in the type of
// primitive or vector.
if ((CT->getTypeClass() != clang::Type::Builtin) &&
(CT->getTypeClass() != clang::Type::ExtVector)) {
return RSExportType::Create(Context, T);
}
// Following the typedef chain to see whether it's an element name like
// rs_pixel_rgb or its alias (via typedef).
while (T != CT) {
if (T->getTypeClass() != clang::Type::Typedef) {
break;
} else {
const clang::TypedefType *TT = static_cast<const clang::TypedefType*>(T);
const clang::TypedefNameDecl *TD = TT->getDecl();
EI = GetElementInfo(TD->getName());
if (EI != nullptr)
break;
T = TD->getUnderlyingType().getTypePtr();
}
}
if (EI == nullptr) {
return RSExportType::Create(Context, T);
} else {
return RSExportElement::Create(Context, T, EI);
}
}
const RSExportElement::ElementInfo *
RSExportElement::GetElementInfo(const llvm::StringRef &Name) {
if (!Initialized)
Init();
ElementInfoMapTy::const_iterator I = ElementInfoMap.find(Name);
if (I == ElementInfoMap.end())
return nullptr;
else
return I->getValue();
}
} // namespace slang
|
