slang_rs_reflection_cpp.h revision 1f9d1217da29911dcd216b1b196da0ed170c166a 
1/*
2 * Copyright 2012, The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *     http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_REFLECTION_CPP_H_ // NOLINT
18#define _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_REFLECTION_CPP_H_
19
20#include "slang_rs_reflection_base.h"
21#include "slang_rs_reflect_utils.h"
22
23#include <set>
24#include <string>
25
26#define RS_EXPORT_VAR_PREFIX "mExportVar_"
27
28namespace slang {
29
30class RSReflectionCpp : public RSReflectionBase {
31public:
32  explicit RSReflectionCpp(const RSContext *);
33  virtual ~RSReflectionCpp();
34
35  bool reflect(const std::string &OutputPathBase,
36               const std::string &InputFileName,
37               const std::string &OutputBCFileName);
38
39private:
40  unsigned int mNextExportVarSlot;
41  unsigned int mNextExportFuncSlot;
42  unsigned int mNextExportForEachSlot;
43
44  inline void clear() {
45    mNextExportVarSlot = 0;
46    mNextExportFuncSlot = 0;
47    mNextExportForEachSlot = 0;
48    mTypesToCheck.clear();
49  }
50
51  // The file we are currently generating, either the header or the
52  // implementation file.
53  GeneratedFile mOut;
54
55  inline unsigned int getNextExportVarSlot() { return mNextExportVarSlot++; }
56
57  inline unsigned int getNextExportFuncSlot() { return mNextExportFuncSlot++; }
58
59  inline unsigned int getNextExportForEachSlot() {
60    return mNextExportForEachSlot++;
61  }
62
63  bool makeHeader();
64  bool makeImpl();
65  void makeFunctionSignature(bool isDefinition, const RSExportFunc *ef);
66  bool writeBC();
67
68  bool startScriptHeader();
69
70  // Write out code for an export variable initialization.
71  void genInitExportVariable(const RSExportType *ET, const std::string &VarName,
72                             const clang::APValue &Val);
73  void genZeroInitExportVariable(const std::string &VarName);
74  void genInitBoolExportVariable(const std::string &VarName,
75                                 const clang::APValue &Val);
76  void genInitPrimitiveExportVariable(const std::string &VarName,
77                                      const clang::APValue &Val);
78
79  // Produce an argument string of the form "T1 t, T2 u, T3 v".
80  void makeArgs(const ArgTy &Args, int Offset);
81
82  // Write out code for an export variable.
83  void genExportVariable(const RSExportVar *EV);
84
85  void genPrimitiveTypeExportVariable(const RSExportVar *EV);
86  void genPointerTypeExportVariable(const RSExportVar *EV);
87  void genVectorTypeExportVariable(const RSExportVar *EV);
88  void genMatrixTypeExportVariable(const RSExportVar *EV);
89  void genConstantArrayTypeExportVariable(const RSExportVar *EV);
90  void genRecordTypeExportVariable(const RSExportVar *EV);
91
92  // Write out a local FieldPacker (if necessary).
93  bool genCreateFieldPacker(const RSExportType *T, const char *FieldPackerName);
94
95  // Populate (write) the FieldPacker with add() operations.
96  void genPackVarOfType(const RSExportType *ET, const char *VarName,
97                        const char *FieldPackerName);
98
99  // Generate a runtime type check for VarName.
100  void genTypeCheck(const RSExportType *ET, const char *VarName);
101
102  // Generate a type instance for a given forEach argument type.
103  void genTypeInstanceFromPointer(const RSExportType *ET);
104  void genTypeInstance(const RSExportType *ET);
105
106}; // class RSReflectionCpp
107
108} // namespace slang
109
110#endif // _FRAMEWORKS_COMPILE_SLANG_SLANG_RS_REFLECTION_CPP_H_  NOLINT
111