slang_rs_reflection.cpp revision 0d26cef64debfaa6862a27587c1fd0d30baa3b1d 
1/*
2 * Copyright 2010-2012, 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#include "slang_rs_reflection.h"
18
19#include <sys/stat.h>
20
21#include <cstdarg>
22#include <cctype>
23
24#include <algorithm>
25#include <sstream>
26#include <string>
27#include <utility>
28
29#include "llvm/ADT/APFloat.h"
30#include "llvm/ADT/StringExtras.h"
31
32#include "os_sep.h"
33#include "slang_rs_context.h"
34#include "slang_rs_export_var.h"
35#include "slang_rs_export_foreach.h"
36#include "slang_rs_export_func.h"
37#include "slang_rs_reflect_utils.h"
38#include "slang_version.h"
39#include "slang_utils.h"
40
41#include "slang_rs_reflection_base.h"
42
43#define RS_SCRIPT_CLASS_NAME_PREFIX      "ScriptC_"
44#define RS_SCRIPT_CLASS_SUPER_CLASS_NAME "ScriptC"
45
46#define RS_TYPE_CLASS_SUPER_CLASS_NAME   "android.renderscript.Script.FieldBase"
47
48#define RS_TYPE_ITEM_CLASS_NAME          "Item"
49
50#define RS_TYPE_ITEM_BUFFER_NAME         "mItemArray"
51#define RS_TYPE_ITEM_BUFFER_PACKER_NAME  "mIOBuffer"
52#define RS_TYPE_ELEMENT_REF_NAME         "mElementCache"
53
54#define RS_EXPORT_VAR_INDEX_PREFIX       "mExportVarIdx_"
55#define RS_EXPORT_VAR_PREFIX             "mExportVar_"
56#define RS_EXPORT_VAR_ELEM_PREFIX        "mExportVarElem_"
57#define RS_EXPORT_VAR_DIM_PREFIX         "mExportVarDim_"
58#define RS_EXPORT_VAR_CONST_PREFIX       "const_"
59
60#define RS_ELEM_PREFIX                   "__"
61
62#define RS_EXPORT_FUNC_INDEX_PREFIX      "mExportFuncIdx_"
63#define RS_EXPORT_FOREACH_INDEX_PREFIX   "mExportForEachIdx_"
64
65#define RS_EXPORT_VAR_ALLOCATION_PREFIX  "mAlloction_"
66#define RS_EXPORT_VAR_DATA_STORAGE_PREFIX "mData_"
67
68namespace slang {
69
70// Some utility function using internal in RSReflection
71static bool GetClassNameFromFileName(const std::string &FileName,
72                                     std::string &ClassName) {
73  ClassName.clear();
74
75  if (FileName.empty() || (FileName == "-"))
76    return true;
77
78  ClassName =
79      RSSlangReflectUtils::JavaClassNameFromRSFileName(FileName.c_str());
80
81  return true;
82}
83
84static const char *GetMatrixTypeName(const RSExportMatrixType *EMT) {
85  static const char *MatrixTypeJavaNameMap[] = {
86    /* 2x2 */ "Matrix2f",
87    /* 3x3 */ "Matrix3f",
88    /* 4x4 */ "Matrix4f",
89  };
90  unsigned Dim = EMT->getDim();
91
92  if ((Dim - 2) < (sizeof(MatrixTypeJavaNameMap) / sizeof(const char*)))
93    return MatrixTypeJavaNameMap[ EMT->getDim() - 2 ];
94
95  slangAssert(false && "GetMatrixTypeName : Unsupported matrix dimension");
96  return NULL;
97}
98
99static const char *GetVectorAccessor(unsigned Index) {
100  static const char *VectorAccessorMap[] = {
101    /* 0 */ "x",
102    /* 1 */ "y",
103    /* 2 */ "z",
104    /* 3 */ "w",
105  };
106
107  slangAssert((Index < (sizeof(VectorAccessorMap) / sizeof(const char*))) &&
108              "Out-of-bound index to access vector member");
109
110  return VectorAccessorMap[Index];
111}
112
113static const char *GetPackerAPIName(const RSExportPrimitiveType *EPT) {
114  static const char *PrimitiveTypePackerAPINameMap[] = {
115    "",         // RSExportPrimitiveType::DataTypeFloat16
116    "addF32",   // RSExportPrimitiveType::DataTypeFloat32
117    "addF64",   // RSExportPrimitiveType::DataTypeFloat64
118    "addI8",    // RSExportPrimitiveType::DataTypeSigned8
119    "addI16",   // RSExportPrimitiveType::DataTypeSigned16
120    "addI32",   // RSExportPrimitiveType::DataTypeSigned32
121    "addI64",   // RSExportPrimitiveType::DataTypeSigned64
122    "addU8",    // RSExportPrimitiveType::DataTypeUnsigned8
123    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned16
124    "addU32",   // RSExportPrimitiveType::DataTypeUnsigned32
125    "addU64",   // RSExportPrimitiveType::DataTypeUnsigned64
126    "addBoolean",  // RSExportPrimitiveType::DataTypeBoolean
127
128    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned565
129    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned5551
130    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned4444
131
132    "addMatrix",   // RSExportPrimitiveType::DataTypeRSMatrix2x2
133    "addMatrix",   // RSExportPrimitiveType::DataTypeRSMatrix3x3
134    "addMatrix",   // RSExportPrimitiveType::DataTypeRSMatrix4x4
135
136    "addObj",   // RSExportPrimitiveType::DataTypeRSElement
137    "addObj",   // RSExportPrimitiveType::DataTypeRSType
138    "addObj",   // RSExportPrimitiveType::DataTypeRSAllocation
139    "addObj",   // RSExportPrimitiveType::DataTypeRSSampler
140    "addObj",   // RSExportPrimitiveType::DataTypeRSScript
141    "addObj",   // RSExportPrimitiveType::DataTypeRSMesh
142    "addObj",   // RSExportPrimitiveType::DataTypeRSPath
143    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramFragment
144    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramVertex
145    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramRaster
146    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramStore
147    "addObj",   // RSExportPrimitiveType::DataTypeRSFont
148  };
149  unsigned TypeId = EPT->getType();
150
151  if (TypeId < (sizeof(PrimitiveTypePackerAPINameMap) / sizeof(const char*)))
152    return PrimitiveTypePackerAPINameMap[ EPT->getType() ];
153
154  slangAssert(false && "GetPackerAPIName : Unknown primitive data type");
155  return NULL;
156}
157
158static std::string GetTypeName(const RSExportType *ET, bool Brackets = true) {
159  switch (ET->getClass()) {
160    case RSExportType::ExportClassPrimitive: {
161      return RSExportPrimitiveType::getRSReflectionType(
162          static_cast<const RSExportPrimitiveType*>(ET))->java_name;
163    }
164    case RSExportType::ExportClassPointer: {
165      const RSExportType *PointeeType =
166          static_cast<const RSExportPointerType*>(ET)->getPointeeType();
167
168      if (PointeeType->getClass() != RSExportType::ExportClassRecord)
169        return "Allocation";
170      else
171        return PointeeType->getElementName();
172    }
173    case RSExportType::ExportClassVector: {
174      const RSExportVectorType *EVT =
175          static_cast<const RSExportVectorType*>(ET);
176      std::stringstream VecName;
177      VecName << EVT->getRSReflectionType(EVT)->rs_java_vector_prefix
178              << EVT->getNumElement();
179      return VecName.str();
180    }
181    case RSExportType::ExportClassMatrix: {
182      return GetMatrixTypeName(static_cast<const RSExportMatrixType*>(ET));
183    }
184    case RSExportType::ExportClassConstantArray: {
185      const RSExportConstantArrayType* CAT =
186          static_cast<const RSExportConstantArrayType*>(ET);
187      std::string ElementTypeName = GetTypeName(CAT->getElementType());
188      if (Brackets) {
189        ElementTypeName.append("[]");
190      }
191      return ElementTypeName;
192    }
193    case RSExportType::ExportClassRecord: {
194      return ET->getElementName() + "."RS_TYPE_ITEM_CLASS_NAME;
195    }
196    default: {
197      slangAssert(false && "Unknown class of type");
198    }
199  }
200
201  return "";
202}
203
204static const char *GetTypeNullValue(const RSExportType *ET) {
205  switch (ET->getClass()) {
206    case RSExportType::ExportClassPrimitive: {
207      const RSExportPrimitiveType *EPT =
208          static_cast<const RSExportPrimitiveType*>(ET);
209      if (EPT->isRSObjectType())
210        return "null";
211      else if (EPT->getType() == RSExportPrimitiveType::DataTypeBoolean)
212        return "false";
213      else
214        return "0";
215      break;
216    }
217    case RSExportType::ExportClassPointer:
218    case RSExportType::ExportClassVector:
219    case RSExportType::ExportClassMatrix:
220    case RSExportType::ExportClassConstantArray:
221    case RSExportType::ExportClassRecord: {
222      return "null";
223      break;
224    }
225    default: {
226      slangAssert(false && "Unknown class of type");
227    }
228  }
229  return "";
230}
231
232static std::string GetBuiltinElementConstruct(const RSExportType *ET) {
233  if (ET->getClass() == RSExportType::ExportClassPrimitive) {
234    return std::string("Element.") + ET->getElementName();
235  } else if (ET->getClass() == RSExportType::ExportClassVector) {
236    const RSExportVectorType *EVT = static_cast<const RSExportVectorType*>(ET);
237    if (EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
238      if (EVT->getNumElement() == 2)
239        return "Element.F32_2";
240      else if (EVT->getNumElement() == 3)
241        return "Element.F32_3";
242      else if (EVT->getNumElement() == 4)
243        return "Element.F32_4";
244    } else if (EVT->getType() == RSExportPrimitiveType::DataTypeUnsigned8) {
245      if (EVT->getNumElement() == 4)
246        return "Element.U8_4";
247    }
248  } else if (ET->getClass() == RSExportType::ExportClassMatrix) {
249    const RSExportMatrixType *EMT = static_cast<const RSExportMatrixType *>(ET);
250    switch (EMT->getDim()) {
251      case 2: return "Element.MATRIX_2X2";
252      case 3: return "Element.MATRIX_3X3";
253      case 4: return "Element.MATRIX_4X4";
254      default: slangAssert(false && "Unsupported dimension of matrix");
255    }
256  }
257  // RSExportType::ExportClassPointer can't be generated in a struct.
258
259  return "";
260}
261
262
263/********************** Methods to generate script class **********************/
264bool RSReflection::genScriptClass(Context &C,
265                                  const std::string &ClassName,
266                                  std::string &ErrorMsg) {
267  if (!C.startClass(Context::AM_Public,
268                    false,
269                    ClassName,
270                    RS_SCRIPT_CLASS_SUPER_CLASS_NAME,
271                    ErrorMsg))
272    return false;
273
274  genScriptClassConstructor(C);
275
276  // Reflect export variable
277  for (RSContext::const_export_var_iterator I = mRSContext->export_vars_begin(),
278           E = mRSContext->export_vars_end();
279       I != E;
280       I++)
281    genExportVariable(C, *I);
282
283  // Reflect export for each functions (only available on ICS+)
284  if (mRSContext->getTargetAPI() >= SLANG_ICS_TARGET_API) {
285    for (RSContext::const_export_foreach_iterator
286             I = mRSContext->export_foreach_begin(),
287             E = mRSContext->export_foreach_end();
288         I != E; I++)
289      genExportForEach(C, *I);
290  }
291
292  // Reflect export function
293  for (RSContext::const_export_func_iterator
294           I = mRSContext->export_funcs_begin(),
295           E = mRSContext->export_funcs_end();
296       I != E; I++)
297    genExportFunction(C, *I);
298
299  C.endClass();
300
301  return true;
302}
303
304void RSReflection::genScriptClassConstructor(Context &C) {
305  C.indent() << "// Constructor" << std::endl;
306  C.startFunction(Context::AM_Public,
307                  false,
308                  NULL,
309                  C.getClassName(),
310                  3,
311                  "RenderScript", "rs",
312                  "Resources", "resources",
313                  "int", "id");
314  // Call constructor of super class
315  C.indent() << "super(rs, resources, id);" << std::endl;
316
317  // If an exported variable has initial value, reflect it
318
319  for (RSContext::const_export_var_iterator I = mRSContext->export_vars_begin(),
320           E = mRSContext->export_vars_end();
321       I != E;
322       I++) {
323    const RSExportVar *EV = *I;
324    if (!EV->getInit().isUninit()) {
325      genInitExportVariable(C, EV->getType(), EV->getName(), EV->getInit());
326    } else if (EV->getArraySize()) {
327      // Always create an initial zero-init array object.
328      C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = new "
329                 << GetTypeName(EV->getType(), false) << "["
330                 << EV->getArraySize() << "];" << std::endl;
331      size_t NumInits = EV->getNumInits();
332      const RSExportConstantArrayType *ECAT =
333          static_cast<const RSExportConstantArrayType*>(EV->getType());
334      const RSExportType *ET = ECAT->getElementType();
335      for (size_t i = 0; i < NumInits; i++) {
336        std::stringstream Name;
337        Name << EV->getName() << "[" << i << "]";
338        genInitExportVariable(C, ET, Name.str(), EV->getInitArray(i));
339      }
340    }
341    if (mRSContext->getTargetAPI() >= SLANG_JB_TARGET_API) {
342      genTypeInstance(C, EV->getType());
343    }
344  }
345
346  for (RSContext::const_export_foreach_iterator
347           I = mRSContext->export_foreach_begin(),
348           E = mRSContext->export_foreach_end();
349       I != E;
350       I++) {
351    const RSExportForEach *EF = *I;
352
353    const RSExportType *IET = EF->getInType();
354    if (IET) {
355      genTypeInstanceFromPointer(C, IET);
356    }
357    const RSExportType *OET = EF->getOutType();
358    if (OET) {
359      genTypeInstanceFromPointer(C, OET);
360    }
361  }
362
363  C.endFunction();
364
365  for (std::set<std::string>::iterator I = C.mTypesToCheck.begin(),
366                                       E = C.mTypesToCheck.end();
367       I != E;
368       I++) {
369    C.indent() << "private Element " RS_ELEM_PREFIX << *I << ";" << std::endl;
370  }
371
372  return;
373}
374
375void RSReflection::genInitBoolExportVariable(Context &C,
376                                             const std::string &VarName,
377                                             const clang::APValue &Val) {
378  slangAssert(!Val.isUninit() && "Not a valid initializer");
379
380  C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
381  slangAssert((Val.getKind() == clang::APValue::Int) &&
382              "Bool type has wrong initial APValue");
383
384  C.out() << ((Val.getInt().getSExtValue() == 0) ? "false" : "true")
385          << ";" << std::endl;
386
387  return;
388}
389
390void RSReflection::genInitPrimitiveExportVariable(
391      Context &C,
392      const std::string &VarName,
393      const clang::APValue &Val) {
394  slangAssert(!Val.isUninit() && "Not a valid initializer");
395
396  C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
397  C.out() << RSReflectionBase::genInitValue(Val);
398  C.out() << ";" << std::endl;
399
400  return;
401}
402
403void RSReflection::genInitExportVariable(Context &C,
404                                         const RSExportType *ET,
405                                         const std::string &VarName,
406                                         const clang::APValue &Val) {
407  slangAssert(!Val.isUninit() && "Not a valid initializer");
408
409  switch (ET->getClass()) {
410    case RSExportType::ExportClassPrimitive: {
411      const RSExportPrimitiveType *EPT =
412          static_cast<const RSExportPrimitiveType*>(ET);
413      if (EPT->getType() == RSExportPrimitiveType::DataTypeBoolean) {
414        genInitBoolExportVariable(C, VarName, Val);
415      } else {
416        genInitPrimitiveExportVariable(C, VarName, Val);
417      }
418      break;
419    }
420    case RSExportType::ExportClassPointer: {
421      if (!Val.isInt() || Val.getInt().getSExtValue() != 0)
422        std::cout << "Initializer which is non-NULL to pointer type variable "
423                     "will be ignored" << std::endl;
424      break;
425    }
426    case RSExportType::ExportClassVector: {
427      const RSExportVectorType *EVT =
428          static_cast<const RSExportVectorType*>(ET);
429      switch (Val.getKind()) {
430        case clang::APValue::Int:
431        case clang::APValue::Float: {
432          for (unsigned i = 0; i < EVT->getNumElement(); i++) {
433            std::string Name =  VarName + "." + GetVectorAccessor(i);
434            genInitPrimitiveExportVariable(C, Name, Val);
435          }
436          break;
437        }
438        case clang::APValue::Vector: {
439          std::stringstream VecName;
440          VecName << EVT->getRSReflectionType(EVT)->rs_java_vector_prefix
441                  << EVT->getNumElement();
442          C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = new "
443                     << VecName.str() << "();" << std::endl;
444
445          unsigned NumElements =
446              std::min(static_cast<unsigned>(EVT->getNumElement()),
447                       Val.getVectorLength());
448          for (unsigned i = 0; i < NumElements; i++) {
449            const clang::APValue &ElementVal = Val.getVectorElt(i);
450            std::string Name = VarName + "." + GetVectorAccessor(i);
451            genInitPrimitiveExportVariable(C, Name, ElementVal);
452          }
453          break;
454        }
455        case clang::APValue::MemberPointer:
456        case clang::APValue::Uninitialized:
457        case clang::APValue::ComplexInt:
458        case clang::APValue::ComplexFloat:
459        case clang::APValue::LValue:
460        case clang::APValue::Array:
461        case clang::APValue::Struct:
462        case clang::APValue::Union:
463        case clang::APValue::AddrLabelDiff: {
464          slangAssert(false && "Unexpected type of value of initializer.");
465        }
466      }
467      break;
468    }
469    // TODO(zonr): Resolving initializer of a record (and matrix) type variable
470    // is complex. It cannot obtain by just simply evaluating the initializer
471    // expression.
472    case RSExportType::ExportClassMatrix:
473    case RSExportType::ExportClassConstantArray:
474    case RSExportType::ExportClassRecord: {
475#if 0
476      unsigned InitIndex = 0;
477      const RSExportRecordType *ERT =
478          static_cast<const RSExportRecordType*>(ET);
479
480      slangAssert((Val.getKind() == clang::APValue::Vector) &&
481          "Unexpected type of initializer for record type variable");
482
483      C.indent() << RS_EXPORT_VAR_PREFIX << VarName
484                 << " = new " << ERT->getElementName()
485                 <<  "."RS_TYPE_ITEM_CLASS_NAME"();" << std::endl;
486
487      for (RSExportRecordType::const_field_iterator I = ERT->fields_begin(),
488               E = ERT->fields_end();
489           I != E;
490           I++) {
491        const RSExportRecordType::Field *F = *I;
492        std::string FieldName = VarName + "." + F->getName();
493
494        if (InitIndex > Val.getVectorLength())
495          break;
496
497        genInitPrimitiveExportVariable(C,
498                                       FieldName,
499                                       Val.getVectorElt(InitIndex++));
500      }
501#endif
502      slangAssert(false && "Unsupported initializer for record/matrix/constant "
503                           "array type variable currently");
504      break;
505    }
506    default: {
507      slangAssert(false && "Unknown class of type");
508    }
509  }
510  return;
511}
512
513void RSReflection::genExportVariable(Context &C, const RSExportVar *EV) {
514  const RSExportType *ET = EV->getType();
515
516  C.indent() << "private final static int "RS_EXPORT_VAR_INDEX_PREFIX
517             << EV->getName() << " = " << C.getNextExportVarSlot() << ";"
518             << std::endl;
519
520  switch (ET->getClass()) {
521    case RSExportType::ExportClassPrimitive: {
522      genPrimitiveTypeExportVariable(C, EV);
523      break;
524    }
525    case RSExportType::ExportClassPointer: {
526      genPointerTypeExportVariable(C, EV);
527      break;
528    }
529    case RSExportType::ExportClassVector: {
530      genVectorTypeExportVariable(C, EV);
531      break;
532    }
533    case RSExportType::ExportClassMatrix: {
534      genMatrixTypeExportVariable(C, EV);
535      break;
536    }
537    case RSExportType::ExportClassConstantArray: {
538      genConstantArrayTypeExportVariable(C, EV);
539      break;
540    }
541    case RSExportType::ExportClassRecord: {
542      genRecordTypeExportVariable(C, EV);
543      break;
544    }
545    default: {
546      slangAssert(false && "Unknown class of type");
547    }
548  }
549
550  return;
551}
552
553void RSReflection::genExportFunction(Context &C, const RSExportFunc *EF) {
554  C.indent() << "private final static int "RS_EXPORT_FUNC_INDEX_PREFIX
555             << EF->getName() << " = " << C.getNextExportFuncSlot() << ";"
556             << std::endl;
557
558  // invoke_*()
559  Context::ArgTy Args;
560
561  if (EF->hasParam()) {
562    for (RSExportFunc::const_param_iterator I = EF->params_begin(),
563             E = EF->params_end();
564         I != E;
565         I++) {
566      Args.push_back(std::make_pair(GetTypeName((*I)->getType()),
567                                    (*I)->getName()));
568    }
569  }
570
571  C.startFunction(Context::AM_Public,
572                  false,
573                  "void",
574                  "invoke_" + EF->getName(/*Mangle=*/ false),
575                      // We are using un-mangled name since Java
576                      // supports method overloading.
577                  Args);
578
579  if (!EF->hasParam()) {
580    C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ");"
581               << std::endl;
582  } else {
583    const RSExportRecordType *ERT = EF->getParamPacketType();
584    std::string FieldPackerName = EF->getName() + "_fp";
585
586    if (genCreateFieldPacker(C, ERT, FieldPackerName.c_str()))
587      genPackVarOfType(C, ERT, NULL, FieldPackerName.c_str());
588
589    C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ", "
590               << FieldPackerName << ");" << std::endl;
591  }
592
593  C.endFunction();
594  return;
595}
596
597void RSReflection::genExportForEach(Context &C, const RSExportForEach *EF) {
598  if (EF->isDummyRoot()) {
599    // Skip reflection for dummy root() kernels. Note that we have to
600    // advance the next slot number for ForEach, however.
601    C.indent() << "//private final static int "RS_EXPORT_FOREACH_INDEX_PREFIX
602               << EF->getName() << " = " << C.getNextExportForEachSlot() << ";"
603               << std::endl;
604    return;
605  }
606
607  C.indent() << "private final static int "RS_EXPORT_FOREACH_INDEX_PREFIX
608             << EF->getName() << " = " << C.getNextExportForEachSlot() << ";"
609             << std::endl;
610
611  // forEach_*()
612  Context::ArgTy Args;
613
614  slangAssert(EF->getNumParameters() > 0);
615
616  if (EF->hasIn())
617    Args.push_back(std::make_pair("Allocation", "ain"));
618  if (EF->hasOut())
619    Args.push_back(std::make_pair("Allocation", "aout"));
620
621  const RSExportRecordType *ERT = EF->getParamPacketType();
622  if (ERT) {
623    for (RSExportForEach::const_param_iterator I = EF->params_begin(),
624             E = EF->params_end();
625         I != E;
626         I++) {
627      Args.push_back(std::make_pair(GetTypeName((*I)->getType()),
628                                    (*I)->getName()));
629    }
630  }
631
632  C.startFunction(Context::AM_Public,
633                  false,
634                  "void",
635                  "forEach_" + EF->getName(),
636                  Args);
637
638  const RSExportType *IET = EF->getInType();
639  if (IET) {
640    genTypeCheck(C, IET, "ain");
641  }
642
643  const RSExportType *OET = EF->getOutType();
644  if (OET) {
645    genTypeCheck(C, OET, "aout");
646  }
647
648  if (EF->hasIn() && EF->hasOut()) {
649    C.indent() << "// Verify dimensions" << std::endl;
650    C.indent() << "Type tIn = ain.getType();" << std::endl;
651    C.indent() << "Type tOut = aout.getType();" << std::endl;
652    C.indent() << "if ((tIn.getCount() != tOut.getCount()) ||" << std::endl;
653    C.indent() << "    (tIn.getX() != tOut.getX()) ||" << std::endl;
654    C.indent() << "    (tIn.getY() != tOut.getY()) ||" << std::endl;
655    C.indent() << "    (tIn.getZ() != tOut.getZ()) ||" << std::endl;
656    C.indent() << "    (tIn.hasFaces() != tOut.hasFaces()) ||" << std::endl;
657    C.indent() << "    (tIn.hasMipmaps() != tOut.hasMipmaps())) {" << std::endl;
658    C.indent() << "    throw new RSRuntimeException(\"Dimension mismatch "
659               << "between input and output parameters!\");";
660    C.out()    << std::endl;
661    C.indent() << "}" << std::endl;
662  }
663
664  std::string FieldPackerName = EF->getName() + "_fp";
665  if (ERT) {
666    if (genCreateFieldPacker(C, ERT, FieldPackerName.c_str())) {
667      genPackVarOfType(C, ERT, NULL, FieldPackerName.c_str());
668    }
669  }
670  C.indent() << "forEach("RS_EXPORT_FOREACH_INDEX_PREFIX << EF->getName();
671
672  if (EF->hasIn())
673    C.out() << ", ain";
674  else
675    C.out() << ", null";
676
677  if (EF->hasOut())
678    C.out() << ", aout";
679  else
680    C.out() << ", null";
681
682  if (EF->hasUsrData())
683    C.out() << ", " << FieldPackerName;
684  else
685    C.out() << ", null";
686
687  C.out() << ");" << std::endl;
688
689  C.endFunction();
690  return;
691}
692
693void RSReflection::genTypeInstanceFromPointer(Context &C,
694                                              const RSExportType *ET) {
695  if (ET->getClass() == RSExportType::ExportClassPointer) {
696    const RSExportPointerType *EPT =
697        static_cast<const RSExportPointerType*>(ET);
698    genTypeInstance(C, EPT->getPointeeType());
699  }
700}
701
702void RSReflection::genTypeInstance(Context &C,
703                                   const RSExportType *ET) {
704  switch (ET->getClass()) {
705    case RSExportType::ExportClassPrimitive:
706    case RSExportType::ExportClassVector:
707    case RSExportType::ExportClassConstantArray: {
708      std::string TypeName = ET->getElementName();
709      if (C.mTypesToCheck.find(TypeName) == C.mTypesToCheck.end()) {
710        C.indent() << RS_ELEM_PREFIX << TypeName << " = Element." << TypeName
711                   << "(rs);" << std::endl;
712        C.mTypesToCheck.insert(TypeName);
713      }
714      break;
715    }
716
717    case RSExportType::ExportClassRecord: {
718      std::string ClassName = ET->getElementName();
719      if (C.mTypesToCheck.find(ClassName) == C.mTypesToCheck.end()) {
720        C.indent() << RS_ELEM_PREFIX << ClassName << " = " << ClassName <<
721                      ".createElement(rs);" << std::endl;
722        C.mTypesToCheck.insert(ClassName);
723      }
724      break;
725    }
726
727    default:
728      break;
729  }
730}
731
732void RSReflection::genTypeCheck(Context &C,
733                                const RSExportType *ET,
734                                const char *VarName) {
735  C.indent() << "// check " << VarName << std::endl;
736
737  if (ET->getClass() == RSExportType::ExportClassPointer) {
738    const RSExportPointerType *EPT =
739        static_cast<const RSExportPointerType*>(ET);
740    ET = EPT->getPointeeType();
741  }
742
743  std::string TypeName;
744
745  switch (ET->getClass()) {
746    case RSExportType::ExportClassPrimitive:
747    case RSExportType::ExportClassVector:
748    case RSExportType::ExportClassRecord: {
749      TypeName = ET->getElementName();
750      break;
751    }
752
753    default:
754      break;
755  }
756
757  if (!TypeName.empty()) {
758    C.indent() << "if (!" << VarName
759               << ".getType().getElement().isCompatible(" RS_ELEM_PREFIX
760               << TypeName << ")) {" << std::endl;
761    C.indent() << "    throw new RSRuntimeException(\"Type mismatch with "
762               << TypeName << "!\");" << std::endl;
763    C.indent() << "}" << std::endl;
764  }
765
766  return;
767}
768
769
770void RSReflection::genPrimitiveTypeExportVariable(
771    Context &C,
772    const RSExportVar *EV) {
773  slangAssert((EV->getType()->getClass() == RSExportType::ExportClassPrimitive)
774              && "Variable should be type of primitive here");
775
776  const RSExportPrimitiveType *EPT =
777      static_cast<const RSExportPrimitiveType*>(EV->getType());
778  std::string TypeName = GetTypeName(EPT);
779  std::string VarName = EV->getName();
780
781  genPrivateExportVariable(C, TypeName, EV->getName());
782
783  if (EV->isConst()) {
784    C.indent() << "public final static " << TypeName
785               << " " RS_EXPORT_VAR_CONST_PREFIX << VarName << " = ";
786    const clang::APValue &Val = EV->getInit();
787    C.out() << RSReflectionBase::genInitValue(Val, EPT->getType() ==
788        RSExportPrimitiveType::DataTypeBoolean) << ";" << std::endl;
789  } else {
790    // set_*()
791    C.startFunction(Context::AM_Public,
792                    false,
793                    "void",
794                    "set_" + VarName,
795                    1,
796                    TypeName.c_str(), "v");
797    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = v;" << std::endl;
798
799    C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << VarName
800               << ", v);" << std::endl;
801
802    C.endFunction();
803  }
804
805  genGetExportVariable(C, TypeName, VarName);
806  return;
807}
808
809void RSReflection::genPointerTypeExportVariable(Context &C,
810                                                const RSExportVar *EV) {
811  const RSExportType *ET = EV->getType();
812  const RSExportType *PointeeType;
813
814  slangAssert((ET->getClass() == RSExportType::ExportClassPointer) &&
815              "Variable should be type of pointer here");
816
817  PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
818  std::string TypeName = GetTypeName(ET);
819  std::string VarName = EV->getName();
820
821  genPrivateExportVariable(C, TypeName, VarName);
822
823  // bind_*()
824  C.startFunction(Context::AM_Public,
825                  false,
826                  "void",
827                  "bind_" + VarName,
828                  1,
829                  TypeName.c_str(), "v");
830
831  C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = v;" << std::endl;
832  C.indent() << "if (v == null) bindAllocation(null, "RS_EXPORT_VAR_INDEX_PREFIX
833             << VarName << ");" << std::endl;
834
835  if (PointeeType->getClass() == RSExportType::ExportClassRecord)
836    C.indent() << "else bindAllocation(v.getAllocation(), "
837        RS_EXPORT_VAR_INDEX_PREFIX << VarName << ");"
838               << std::endl;
839  else
840    C.indent() << "else bindAllocation(v, "RS_EXPORT_VAR_INDEX_PREFIX
841               << VarName << ");" << std::endl;
842
843  C.endFunction();
844
845  genGetExportVariable(C, TypeName, VarName);
846  return;
847}
848
849void RSReflection::genVectorTypeExportVariable(Context &C,
850                                               const RSExportVar *EV) {
851  slangAssert((EV->getType()->getClass() == RSExportType::ExportClassVector) &&
852              "Variable should be type of vector here");
853
854  std::string TypeName = GetTypeName(EV->getType());
855  std::string VarName = EV->getName();
856
857  genPrivateExportVariable(C, TypeName, VarName);
858  genSetExportVariable(C, TypeName, EV);
859  genGetExportVariable(C, TypeName, VarName);
860  return;
861}
862
863void RSReflection::genMatrixTypeExportVariable(Context &C,
864                                               const RSExportVar *EV) {
865  slangAssert((EV->getType()->getClass() == RSExportType::ExportClassMatrix) &&
866              "Variable should be type of matrix here");
867
868    const RSExportType *ET = EV->getType();
869  std::string TypeName = GetTypeName(ET);
870  std::string VarName = EV->getName();
871
872  genPrivateExportVariable(C, TypeName, VarName);
873
874  // set_*()
875  if (!EV->isConst()) {
876    const char *FieldPackerName = "fp";
877    C.startFunction(Context::AM_Public,
878                    false,
879                    "void",
880                    "set_" + VarName,
881                    1,
882                    TypeName.c_str(), "v");
883    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = v;" << std::endl;
884
885    if (genCreateFieldPacker(C, ET, FieldPackerName))
886      genPackVarOfType(C, ET, "v", FieldPackerName);
887    C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << VarName << ", "
888               << FieldPackerName << ");" << std::endl;
889
890    C.endFunction();
891  }
892
893  genGetExportVariable(C, TypeName, VarName);
894  return;
895}
896
897void RSReflection::genConstantArrayTypeExportVariable(
898    Context &C,
899    const RSExportVar *EV) {
900  slangAssert((EV->getType()->getClass() ==
901               RSExportType::ExportClassConstantArray) &&
902              "Variable should be type of constant array here");
903
904  std::string TypeName = GetTypeName(EV->getType());
905  std::string VarName = EV->getName();
906
907  genPrivateExportVariable(C, TypeName, VarName);
908  genSetExportVariable(C, TypeName, EV);
909  genGetExportVariable(C, TypeName, VarName);
910  return;
911}
912
913void RSReflection::genRecordTypeExportVariable(Context &C,
914                                               const RSExportVar *EV) {
915  slangAssert((EV->getType()->getClass() == RSExportType::ExportClassRecord) &&
916              "Variable should be type of struct here");
917
918  std::string TypeName = GetTypeName(EV->getType());
919  std::string VarName = EV->getName();
920
921  genPrivateExportVariable(C, TypeName, VarName);
922  genSetExportVariable(C, TypeName, EV);
923  genGetExportVariable(C, TypeName, VarName);
924  return;
925}
926
927void RSReflection::genPrivateExportVariable(Context &C,
928                                            const std::string &TypeName,
929                                            const std::string &VarName) {
930  C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX
931             << VarName << ";" << std::endl;
932  return;
933}
934
935void RSReflection::genSetExportVariable(Context &C,
936                                        const std::string &TypeName,
937                                        const RSExportVar *EV) {
938  if (!EV->isConst()) {
939    const char *FieldPackerName = "fp";
940    std::string VarName = EV->getName();
941    const RSExportType *ET = EV->getType();
942    C.startFunction(Context::AM_Public,
943                    false,
944                    "void",
945                    "set_" + VarName,
946                    1,
947                    TypeName.c_str(), "v");
948    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = v;" << std::endl;
949
950    if (genCreateFieldPacker(C, ET, FieldPackerName))
951      genPackVarOfType(C, ET, "v", FieldPackerName);
952
953    if (mRSContext->getTargetAPI() < SLANG_JB_TARGET_API) {
954      // Legacy apps must use the old setVar() without Element/dim components.
955      C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << VarName
956                 << ", " << FieldPackerName << ");" << std::endl;
957    } else {
958      // We only have support for one-dimensional array reflection today,
959      // but the entry point (i.e. setVar()) takes an array of dimensions.
960      C.indent() << "int []__dimArr = new int[1];" << std::endl;
961      C.indent() << "__dimArr[0] = " << ET->getSize() << ";" << std::endl;
962      C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << VarName << ", "
963                 << FieldPackerName << ", " RS_ELEM_PREFIX
964                 << ET->getElementName() << ", __dimArr);" << std::endl;
965    }
966
967    C.endFunction();
968  }
969  return;
970}
971
972void RSReflection::genGetExportVariable(Context &C,
973                                        const std::string &TypeName,
974                                        const std::string &VarName) {
975  C.startFunction(Context::AM_Public,
976                  false,
977                  TypeName.c_str(),
978                  "get_" + VarName,
979                  0);
980
981  C.indent() << "return "RS_EXPORT_VAR_PREFIX << VarName << ";" << std::endl;
982
983  C.endFunction();
984  return;
985}
986
987/******************* Methods to generate script class /end *******************/
988
989bool RSReflection::genCreateFieldPacker(Context &C,
990                                        const RSExportType *ET,
991                                        const char *FieldPackerName) {
992  size_t AllocSize = RSExportType::GetTypeAllocSize(ET);
993  if (AllocSize > 0)
994    C.indent() << "FieldPacker " << FieldPackerName << " = new FieldPacker("
995               << AllocSize << ");" << std::endl;
996  else
997    return false;
998  return true;
999}
1000
1001void RSReflection::genPackVarOfType(Context &C,
1002                                    const RSExportType *ET,
1003                                    const char *VarName,
1004                                    const char *FieldPackerName) {
1005  switch (ET->getClass()) {
1006    case RSExportType::ExportClassPrimitive:
1007    case RSExportType::ExportClassVector: {
1008      C.indent() << FieldPackerName << "."
1009                 << GetPackerAPIName(
1010                     static_cast<const RSExportPrimitiveType*>(ET))
1011                 << "(" << VarName << ");" << std::endl;
1012      break;
1013    }
1014    case RSExportType::ExportClassPointer: {
1015      // Must reflect as type Allocation in Java
1016      const RSExportType *PointeeType =
1017          static_cast<const RSExportPointerType*>(ET)->getPointeeType();
1018
1019      if (PointeeType->getClass() != RSExportType::ExportClassRecord)
1020        C.indent() << FieldPackerName << ".addI32(" << VarName
1021                   << ".getPtr());" << std::endl;
1022      else
1023        C.indent() << FieldPackerName << ".addI32(" << VarName
1024                   << ".getAllocation().getPtr());" << std::endl;
1025      break;
1026    }
1027    case RSExportType::ExportClassMatrix: {
1028      C.indent() << FieldPackerName << ".addMatrix(" << VarName << ");"
1029                 << std::endl;
1030      break;
1031    }
1032    case RSExportType::ExportClassConstantArray: {
1033      const RSExportConstantArrayType *ECAT =
1034          static_cast<const RSExportConstantArrayType *>(ET);
1035
1036      // TODO(zonr): more elegant way. Currently, we obtain the unique index
1037      //             variable (this method involves recursive call which means
1038      //             we may have more than one level loop, therefore we can't
1039      //             always use the same index variable name here) name given
1040      //             in the for-loop from counting the '.' in @VarName.
1041      unsigned Level = 0;
1042      size_t LastDotPos = 0;
1043      std::string ElementVarName(VarName);
1044
1045      while (LastDotPos != std::string::npos) {
1046        LastDotPos = ElementVarName.find_first_of('.', LastDotPos + 1);
1047        Level++;
1048      }
1049      std::string IndexVarName("ct");
1050      IndexVarName.append(llvm::utostr_32(Level));
1051
1052      C.indent() << "for (int " << IndexVarName << " = 0; " <<
1053                          IndexVarName << " < " << ECAT->getSize() << "; " <<
1054                          IndexVarName << "++)";
1055      C.startBlock();
1056
1057      ElementVarName.append("[" + IndexVarName + "]");
1058      genPackVarOfType(C, ECAT->getElementType(), ElementVarName.c_str(),
1059                       FieldPackerName);
1060
1061      C.endBlock();
1062      break;
1063    }
1064    case RSExportType::ExportClassRecord: {
1065      const RSExportRecordType *ERT =
1066          static_cast<const RSExportRecordType*>(ET);
1067      // Relative pos from now on in field packer
1068      unsigned Pos = 0;
1069
1070      for (RSExportRecordType::const_field_iterator I = ERT->fields_begin(),
1071               E = ERT->fields_end();
1072           I != E;
1073           I++) {
1074        const RSExportRecordType::Field *F = *I;
1075        std::string FieldName;
1076        size_t FieldOffset = F->getOffsetInParent();
1077        size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1078        size_t FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
1079
1080        if (VarName != NULL)
1081          FieldName = VarName + ("." + F->getName());
1082        else
1083          FieldName = F->getName();
1084
1085        if (FieldOffset > Pos)
1086          C.indent() << FieldPackerName << ".skip("
1087                     << (FieldOffset - Pos) << ");" << std::endl;
1088
1089        genPackVarOfType(C, F->getType(), FieldName.c_str(), FieldPackerName);
1090
1091        // There is padding in the field type
1092        if (FieldAllocSize > FieldStoreSize)
1093            C.indent() << FieldPackerName << ".skip("
1094                       << (FieldAllocSize - FieldStoreSize)
1095                       << ");" << std::endl;
1096
1097          Pos = FieldOffset + FieldAllocSize;
1098      }
1099
1100      // There maybe some padding after the struct
1101      if (RSExportType::GetTypeAllocSize(ERT) > Pos)
1102        C.indent() << FieldPackerName << ".skip("
1103                   << RSExportType::GetTypeAllocSize(ERT) - Pos << ");"
1104                   << std::endl;
1105      break;
1106    }
1107    default: {
1108      slangAssert(false && "Unknown class of type");
1109    }
1110  }
1111
1112  return;
1113}
1114
1115void RSReflection::genAllocateVarOfType(Context &C,
1116                                        const RSExportType *T,
1117                                        const std::string &VarName) {
1118  switch (T->getClass()) {
1119    case RSExportType::ExportClassPrimitive: {
1120      // Primitive type like int in Java has its own storage once it's declared.
1121      //
1122      // FIXME: Should we allocate storage for RS object?
1123      // if (static_cast<const RSExportPrimitiveType *>(T)->isRSObjectType())
1124      //  C.indent() << VarName << " = new " << GetTypeName(T) << "();"
1125      //             << std::endl;
1126      break;
1127    }
1128    case RSExportType::ExportClassPointer: {
1129      // Pointer type is an instance of Allocation or a TypeClass whose value is
1130      // expected to be assigned by programmer later in Java program. Therefore
1131      // we don't reflect things like [VarName] = new Allocation();
1132      C.indent() << VarName << " = null;" << std::endl;
1133      break;
1134    }
1135    case RSExportType::ExportClassConstantArray: {
1136      const RSExportConstantArrayType *ECAT =
1137          static_cast<const RSExportConstantArrayType *>(T);
1138      const RSExportType *ElementType = ECAT->getElementType();
1139
1140      C.indent() << VarName << " = new " << GetTypeName(ElementType)
1141                 << "[" << ECAT->getSize() << "];" << std::endl;
1142
1143      // Primitive type element doesn't need allocation code.
1144      if (ElementType->getClass() != RSExportType::ExportClassPrimitive) {
1145        C.indent() << "for (int $ct = 0; $ct < " << ECAT->getSize() << "; "
1146                            "$ct++)";
1147        C.startBlock();
1148
1149        std::string ElementVarName(VarName);
1150        ElementVarName.append("[$ct]");
1151        genAllocateVarOfType(C, ElementType, ElementVarName);
1152
1153        C.endBlock();
1154      }
1155      break;
1156    }
1157    case RSExportType::ExportClassVector:
1158    case RSExportType::ExportClassMatrix:
1159    case RSExportType::ExportClassRecord: {
1160      C.indent() << VarName << " = new " << GetTypeName(T) << "();"
1161                 << std::endl;
1162      break;
1163    }
1164  }
1165  return;
1166}
1167
1168void RSReflection::genNewItemBufferIfNull(Context &C,
1169                                          const char *Index) {
1170  C.indent() << "if (" RS_TYPE_ITEM_BUFFER_NAME " == null) "
1171                  RS_TYPE_ITEM_BUFFER_NAME " = "
1172                    "new " RS_TYPE_ITEM_CLASS_NAME
1173                      "[getType().getX() /* count */];"
1174             << std::endl;
1175  if (Index != NULL)
1176    C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME"[" << Index << "] == null) "
1177                    RS_TYPE_ITEM_BUFFER_NAME"[" << Index << "] = "
1178                      "new "RS_TYPE_ITEM_CLASS_NAME"();" << std::endl;
1179  return;
1180}
1181
1182void RSReflection::genNewItemBufferPackerIfNull(Context &C) {
1183  C.indent() << "if (" RS_TYPE_ITEM_BUFFER_PACKER_NAME " == null) "
1184                  RS_TYPE_ITEM_BUFFER_PACKER_NAME " = "
1185                    "new FieldPacker(" RS_TYPE_ITEM_CLASS_NAME
1186                      ".sizeof * getType().getX()/* count */"
1187                        ");" << std::endl;
1188  return;
1189}
1190
1191/********************** Methods to generate type class  **********************/
1192bool RSReflection::genTypeClass(Context &C,
1193                                const RSExportRecordType *ERT,
1194                                std::string &ErrorMsg) {
1195  std::string ClassName = ERT->getElementName();
1196
1197  if (!C.startClass(Context::AM_Public,
1198                    false,
1199                    ClassName,
1200                    RS_TYPE_CLASS_SUPER_CLASS_NAME,
1201                    ErrorMsg))
1202    return false;
1203
1204  mGeneratedFileNames->push_back(ClassName);
1205
1206  genTypeItemClass(C, ERT);
1207
1208  // Declare item buffer and item buffer packer
1209  C.indent() << "private "RS_TYPE_ITEM_CLASS_NAME" "RS_TYPE_ITEM_BUFFER_NAME"[]"
1210      ";" << std::endl;
1211  C.indent() << "private FieldPacker "RS_TYPE_ITEM_BUFFER_PACKER_NAME";"
1212             << std::endl;
1213  C.indent() << "private static java.lang.ref.WeakReference<Element> "
1214             RS_TYPE_ELEMENT_REF_NAME
1215             " = new java.lang.ref.WeakReference<Element>(null);" << std::endl;
1216
1217  genTypeClassConstructor(C, ERT);
1218  genTypeClassCopyToArrayLocal(C, ERT);
1219  genTypeClassCopyToArray(C, ERT);
1220  genTypeClassItemSetter(C, ERT);
1221  genTypeClassItemGetter(C, ERT);
1222  genTypeClassComponentSetter(C, ERT);
1223  genTypeClassComponentGetter(C, ERT);
1224  genTypeClassCopyAll(C, ERT);
1225  genTypeClassResize(C);
1226
1227  C.endClass();
1228
1229  C.resetFieldIndex();
1230  C.clearFieldIndexMap();
1231
1232  return true;
1233}
1234
1235void RSReflection::genTypeItemClass(Context &C,
1236                                    const RSExportRecordType *ERT) {
1237  C.indent() << "static public class "RS_TYPE_ITEM_CLASS_NAME;
1238  C.startBlock();
1239
1240  C.indent() << "public static final int sizeof = "
1241             << RSExportType::GetTypeAllocSize(ERT) << ";" << std::endl;
1242
1243  // Member elements
1244  C.out() << std::endl;
1245  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1246           FE = ERT->fields_end();
1247       FI != FE;
1248       FI++) {
1249    C.indent() << GetTypeName((*FI)->getType()) << " " << (*FI)->getName()
1250               << ";" << std::endl;
1251  }
1252
1253  // Constructor
1254  C.out() << std::endl;
1255  C.indent() << RS_TYPE_ITEM_CLASS_NAME"()";
1256  C.startBlock();
1257
1258  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1259           FE = ERT->fields_end();
1260       FI != FE;
1261       FI++) {
1262    const RSExportRecordType::Field *F = *FI;
1263    genAllocateVarOfType(C, F->getType(), F->getName());
1264  }
1265
1266  // end Constructor
1267  C.endBlock();
1268
1269  // end Item class
1270  C.endBlock();
1271
1272  return;
1273}
1274
1275void RSReflection::genTypeClassConstructor(Context &C,
1276                                           const RSExportRecordType *ERT) {
1277  const char *RenderScriptVar = "rs";
1278
1279  C.startFunction(Context::AM_Public,
1280                  true,
1281                  "Element",
1282                  "createElement",
1283                  1,
1284                  "RenderScript", RenderScriptVar);
1285
1286  // TODO(all): Fix weak-refs + multi-context issue.
1287  // C.indent() << "Element e = " << RS_TYPE_ELEMENT_REF_NAME
1288  //            << ".get();" << std::endl;
1289  // C.indent() << "if (e != null) return e;" << std::endl;
1290  genBuildElement(C, "eb", ERT, RenderScriptVar, /* IsInline = */true);
1291  C.indent() << "return eb.create();" << std::endl;
1292  // C.indent() << "e = eb.create();" << std::endl;
1293  // C.indent() << RS_TYPE_ELEMENT_REF_NAME
1294  //            << " = new java.lang.ref.WeakReference<Element>(e);"
1295  //            << std::endl;
1296  // C.indent() << "return e;" << std::endl;
1297  C.endFunction();
1298
1299
1300  // private with element
1301  C.startFunction(Context::AM_Private,
1302                  false,
1303                  NULL,
1304                  C.getClassName(),
1305                  1,
1306                  "RenderScript", RenderScriptVar);
1307  C.indent() << RS_TYPE_ITEM_BUFFER_NAME" = null;" << std::endl;
1308  C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME" = null;" << std::endl;
1309  C.indent() << "mElement = createElement(" << RenderScriptVar << ");"
1310             << std::endl;
1311  C.endFunction();
1312
1313  // 1D without usage
1314  C.startFunction(Context::AM_Public,
1315                  false,
1316                  NULL,
1317                  C.getClassName(),
1318                  2,
1319                  "RenderScript", RenderScriptVar,
1320                  "int", "count");
1321
1322  C.indent() << RS_TYPE_ITEM_BUFFER_NAME" = null;" << std::endl;
1323  C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME" = null;" << std::endl;
1324  C.indent() << "mElement = createElement(" << RenderScriptVar << ");"
1325             << std::endl;
1326  // Call init() in super class
1327  C.indent() << "init(" << RenderScriptVar << ", count);" << std::endl;
1328  C.endFunction();
1329
1330  // 1D with usage
1331  C.startFunction(Context::AM_Public,
1332                  false,
1333                  NULL,
1334                  C.getClassName(),
1335                  3,
1336                  "RenderScript", RenderScriptVar,
1337                  "int", "count",
1338                  "int", "usages");
1339
1340  C.indent() << RS_TYPE_ITEM_BUFFER_NAME" = null;" << std::endl;
1341  C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME" = null;" << std::endl;
1342  C.indent() << "mElement = createElement(" << RenderScriptVar << ");"
1343             << std::endl;
1344  // Call init() in super class
1345  C.indent() << "init(" << RenderScriptVar << ", count, usages);" << std::endl;
1346  C.endFunction();
1347
1348
1349  // create1D with usage
1350  C.startFunction(Context::AM_Public,
1351                  true,
1352                  C.getClassName().c_str(),
1353                  "create1D",
1354                  3,
1355                  "RenderScript", RenderScriptVar,
1356                  "int", "dimX",
1357                  "int", "usages");
1358  C.indent() << C.getClassName() << " obj = new " << C.getClassName() << "("
1359             << RenderScriptVar << ");" << std::endl;
1360  C.indent() << "obj.mAllocation = Allocation.createSized("
1361                "rs, obj.mElement, dimX, usages);" << std::endl;
1362  C.indent() << "return obj;" << std::endl;
1363  C.endFunction();
1364
1365  // create1D without usage
1366  C.startFunction(Context::AM_Public,
1367                  true,
1368                  C.getClassName().c_str(),
1369                  "create1D",
1370                  2,
1371                  "RenderScript", RenderScriptVar,
1372                  "int", "dimX");
1373  C.indent() << "return create1D(" << RenderScriptVar
1374             << ", dimX, Allocation.USAGE_SCRIPT);" << std::endl;
1375  C.endFunction();
1376
1377
1378  // create2D without usage
1379  C.startFunction(Context::AM_Public,
1380                  true,
1381                  C.getClassName().c_str(),
1382                  "create2D",
1383                  3,
1384                  "RenderScript", RenderScriptVar,
1385                  "int", "dimX",
1386                  "int", "dimY");
1387  C.indent() << "return create2D(" << RenderScriptVar
1388             << ", dimX, dimY, Allocation.USAGE_SCRIPT);" << std::endl;
1389  C.endFunction();
1390
1391  // create2D with usage
1392  C.startFunction(Context::AM_Public,
1393                  true,
1394                  C.getClassName().c_str(),
1395                  "create2D",
1396                  4,
1397                  "RenderScript", RenderScriptVar,
1398                  "int", "dimX",
1399                  "int", "dimY",
1400                  "int", "usages");
1401
1402  C.indent() << C.getClassName() << " obj = new " << C.getClassName() << "("
1403             << RenderScriptVar << ");" << std::endl;
1404  C.indent() << "Type.Builder b = new Type.Builder(rs, obj.mElement);"
1405             << std::endl;
1406  C.indent() << "b.setX(dimX);" << std::endl;
1407  C.indent() << "b.setY(dimY);" << std::endl;
1408  C.indent() << "Type t = b.create();" << std::endl;
1409  C.indent() << "obj.mAllocation = Allocation.createTyped(rs, t, usages);"
1410             << std::endl;
1411  C.indent() << "return obj;" << std::endl;
1412  C.endFunction();
1413
1414
1415  // createTypeBuilder
1416  C.startFunction(Context::AM_Public,
1417                  true,
1418                  "Type.Builder",
1419                  "createTypeBuilder",
1420                  1,
1421                  "RenderScript", RenderScriptVar);
1422  C.indent() << "Element e = createElement(" << RenderScriptVar << ");"
1423             << std::endl;
1424  C.indent() << "return new Type.Builder(rs, e);" << std::endl;
1425  C.endFunction();
1426
1427  // createCustom with usage
1428  C.startFunction(Context::AM_Public,
1429                  true,
1430                  C.getClassName().c_str(),
1431                  "createCustom",
1432                  3,
1433                  "RenderScript", RenderScriptVar,
1434                  "Type.Builder", "tb",
1435                  "int", "usages");
1436  C.indent() << C.getClassName() << " obj = new " << C.getClassName() << "("
1437             << RenderScriptVar << ");" << std::endl;
1438  C.indent() << "Type t = tb.create();" << std::endl;
1439  C.indent() << "if (t.getElement() != obj.mElement) {" << std::endl;
1440  C.indent() << "    throw new RSIllegalArgumentException("
1441                "\"Type.Builder did not match expected element type.\");"
1442             << std::endl;
1443  C.indent() << "}" << std::endl;
1444  C.indent() << "obj.mAllocation = Allocation.createTyped(rs, t, usages);"
1445             << std::endl;
1446  C.indent() << "return obj;" << std::endl;
1447  C.endFunction();
1448}
1449
1450
1451void RSReflection::genTypeClassCopyToArray(Context &C,
1452                                           const RSExportRecordType *ERT) {
1453  C.startFunction(Context::AM_Private,
1454                  false,
1455                  "void",
1456                  "copyToArray",
1457                  2,
1458                  RS_TYPE_ITEM_CLASS_NAME, "i",
1459                  "int", "index");
1460
1461  genNewItemBufferPackerIfNull(C);
1462  C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME
1463                ".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof);"
1464             << std::endl;
1465
1466  C.indent() << "copyToArrayLocal(i, " RS_TYPE_ITEM_BUFFER_PACKER_NAME
1467                ");" << std::endl;
1468
1469  C.endFunction();
1470  return;
1471}
1472
1473void RSReflection::genTypeClassCopyToArrayLocal(Context &C,
1474                                                const RSExportRecordType *ERT) {
1475  C.startFunction(Context::AM_Private,
1476                  false,
1477                  "void",
1478                  "copyToArrayLocal",
1479                  2,
1480                  RS_TYPE_ITEM_CLASS_NAME, "i",
1481                  "FieldPacker", "fp");
1482
1483  genPackVarOfType(C, ERT, "i", "fp");
1484
1485  C.endFunction();
1486  return;
1487}
1488
1489void RSReflection::genTypeClassItemSetter(Context &C,
1490                                          const RSExportRecordType *ERT) {
1491  C.startFunction(Context::AM_PublicSynchronized,
1492                  false,
1493                  "void",
1494                  "set",
1495                  3,
1496                  RS_TYPE_ITEM_CLASS_NAME, "i",
1497                  "int", "index",
1498                  "boolean", "copyNow");
1499  genNewItemBufferIfNull(C, NULL);
1500  C.indent() << RS_TYPE_ITEM_BUFFER_NAME"[index] = i;" << std::endl;
1501
1502  C.indent() << "if (copyNow) ";
1503  C.startBlock();
1504
1505  C.indent() << "copyToArray(i, index);" << std::endl;
1506  C.indent() << "FieldPacker fp = new FieldPacker(" RS_TYPE_ITEM_CLASS_NAME
1507                ".sizeof);" << std::endl;
1508  C.indent() << "copyToArrayLocal(i, fp);" << std::endl;
1509  C.indent() << "mAllocation.setFromFieldPacker(index, fp);" << std::endl;
1510
1511  // End of if (copyNow)
1512  C.endBlock();
1513
1514  C.endFunction();
1515  return;
1516}
1517
1518void RSReflection::genTypeClassItemGetter(Context &C,
1519                                          const RSExportRecordType *ERT) {
1520  C.startFunction(Context::AM_PublicSynchronized,
1521                  false,
1522                  RS_TYPE_ITEM_CLASS_NAME,
1523                  "get",
1524                  1,
1525                  "int", "index");
1526  C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME" == null) return null;"
1527             << std::endl;
1528  C.indent() << "return "RS_TYPE_ITEM_BUFFER_NAME"[index];" << std::endl;
1529  C.endFunction();
1530  return;
1531}
1532
1533void RSReflection::genTypeClassComponentSetter(Context &C,
1534                                               const RSExportRecordType *ERT) {
1535  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1536           FE = ERT->fields_end();
1537       FI != FE;
1538       FI++) {
1539    const RSExportRecordType::Field *F = *FI;
1540    size_t FieldOffset = F->getOffsetInParent();
1541    size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1542    unsigned FieldIndex = C.getFieldIndex(F);
1543
1544    C.startFunction(Context::AM_PublicSynchronized,
1545                    false,
1546                    "void",
1547                    "set_" + F->getName(), 3,
1548                    "int", "index",
1549                    GetTypeName(F->getType()).c_str(), "v",
1550                    "boolean", "copyNow");
1551    genNewItemBufferPackerIfNull(C);
1552    genNewItemBufferIfNull(C, "index");
1553    C.indent() << RS_TYPE_ITEM_BUFFER_NAME"[index]." << F->getName()
1554               << " = v;" << std::endl;
1555
1556    C.indent() << "if (copyNow) ";
1557    C.startBlock();
1558
1559    if (FieldOffset > 0)
1560      C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME
1561                    ".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof + "
1562                 << FieldOffset << ");" << std::endl;
1563    else
1564      C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME
1565                    ".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof);"
1566                 << std::endl;
1567    genPackVarOfType(C, F->getType(), "v", RS_TYPE_ITEM_BUFFER_PACKER_NAME);
1568
1569    C.indent() << "FieldPacker fp = new FieldPacker(" << FieldStoreSize << ");"
1570               << std::endl;
1571    genPackVarOfType(C, F->getType(), "v", "fp");
1572    C.indent() << "mAllocation.setFromFieldPacker(index, " << FieldIndex
1573               << ", fp);"
1574               << std::endl;
1575
1576    // End of if (copyNow)
1577    C.endBlock();
1578
1579    C.endFunction();
1580  }
1581  return;
1582}
1583
1584void RSReflection::genTypeClassComponentGetter(Context &C,
1585                                               const RSExportRecordType *ERT) {
1586  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1587           FE = ERT->fields_end();
1588       FI != FE;
1589       FI++) {
1590    const RSExportRecordType::Field *F = *FI;
1591    C.startFunction(Context::AM_PublicSynchronized,
1592                    false,
1593                    GetTypeName(F->getType()).c_str(),
1594                    "get_" + F->getName(),
1595                    1,
1596                    "int", "index");
1597    C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME" == null) return "
1598               << GetTypeNullValue(F->getType()) << ";" << std::endl;
1599    C.indent() << "return "RS_TYPE_ITEM_BUFFER_NAME"[index]." << F->getName()
1600               << ";" << std::endl;
1601    C.endFunction();
1602  }
1603  return;
1604}
1605
1606void RSReflection::genTypeClassCopyAll(Context &C,
1607                                       const RSExportRecordType *ERT) {
1608  C.startFunction(Context::AM_PublicSynchronized, false, "void", "copyAll", 0);
1609
1610  C.indent() << "for (int ct = 0; ct < "RS_TYPE_ITEM_BUFFER_NAME".length; ct++)"
1611                  " copyToArray("RS_TYPE_ITEM_BUFFER_NAME"[ct], ct);"
1612             << std::endl;
1613  C.indent() << "mAllocation.setFromFieldPacker(0, "
1614                  RS_TYPE_ITEM_BUFFER_PACKER_NAME");"
1615             << std::endl;
1616
1617  C.endFunction();
1618  return;
1619}
1620
1621void RSReflection::genTypeClassResize(Context &C) {
1622  C.startFunction(Context::AM_PublicSynchronized,
1623                  false,
1624                  "void",
1625                  "resize",
1626                  1,
1627                  "int", "newSize");
1628
1629  C.indent() << "if (mItemArray != null) ";
1630  C.startBlock();
1631  C.indent() << "int oldSize = mItemArray.length;" << std::endl;
1632  C.indent() << "int copySize = Math.min(oldSize, newSize);" << std::endl;
1633  C.indent() << "if (newSize == oldSize) return;" << std::endl;
1634  C.indent() << "Item ni[] = new Item[newSize];" << std::endl;
1635  C.indent() << "System.arraycopy(mItemArray, 0, ni, 0, copySize);"
1636             << std::endl;
1637  C.indent() << "mItemArray = ni;" << std::endl;
1638  C.endBlock();
1639  C.indent() << "mAllocation.resize(newSize);" << std::endl;
1640
1641  C.indent() << "if (" RS_TYPE_ITEM_BUFFER_PACKER_NAME " != null) "
1642                  RS_TYPE_ITEM_BUFFER_PACKER_NAME " = "
1643                    "new FieldPacker(" RS_TYPE_ITEM_CLASS_NAME
1644                      ".sizeof * getType().getX()/* count */"
1645                        ");" << std::endl;
1646
1647  C.endFunction();
1648  return;
1649}
1650
1651/******************** Methods to generate type class /end ********************/
1652
1653/********** Methods to create Element in Java of given record type ***********/
1654void RSReflection::genBuildElement(Context &C,
1655                                   const char *ElementBuilderName,
1656                                   const RSExportRecordType *ERT,
1657                                   const char *RenderScriptVar,
1658                                   bool IsInline) {
1659  C.indent() << "Element.Builder " << ElementBuilderName << " = "
1660      "new Element.Builder(" << RenderScriptVar << ");" << std::endl;
1661
1662  // eb.add(...)
1663  genAddElementToElementBuilder(C,
1664                                ERT,
1665                                "",
1666                                ElementBuilderName,
1667                                RenderScriptVar,
1668                                /* ArraySize = */0);
1669
1670  if (!IsInline)
1671    C.indent() << "return " << ElementBuilderName << ".create();" << std::endl;
1672  return;
1673}
1674
1675#define EB_ADD(x) do {                                              \
1676  C.indent() << ElementBuilderName                                  \
1677             << ".add(" << x << ", \"" << VarName << "\"";  \
1678  if (ArraySize > 0)                                                \
1679    C.out() << ", " << ArraySize;                                   \
1680  C.out() << ");" << std::endl;                                     \
1681  C.incFieldIndex();                                                \
1682} while (false)
1683
1684void RSReflection::genAddElementToElementBuilder(Context &C,
1685                                                 const RSExportType *ET,
1686                                                 const std::string &VarName,
1687                                                 const char *ElementBuilderName,
1688                                                 const char *RenderScriptVar,
1689                                                 unsigned ArraySize) {
1690  std::string ElementConstruct = GetBuiltinElementConstruct(ET);
1691
1692  if (ElementConstruct != "") {
1693    EB_ADD(ElementConstruct << "(" << RenderScriptVar << ")");
1694  } else {
1695    if ((ET->getClass() == RSExportType::ExportClassPrimitive) ||
1696        (ET->getClass() == RSExportType::ExportClassVector)) {
1697      const RSExportPrimitiveType *EPT =
1698          static_cast<const RSExportPrimitiveType*>(ET);
1699      const char *DataTypeName =
1700          RSExportPrimitiveType::getRSReflectionType(EPT)->rs_type;
1701      int Size = (ET->getClass() == RSExportType::ExportClassVector) ?
1702          static_cast<const RSExportVectorType*>(ET)->getNumElement() :
1703          1;
1704
1705      if (EPT->getClass() == RSExportType::ExportClassPrimitive) {
1706        // Element.createUser()
1707        EB_ADD("Element.createUser(" << RenderScriptVar
1708                                     << ", Element.DataType."
1709                                     << DataTypeName << ")");
1710      } else {
1711        slangAssert((ET->getClass() == RSExportType::ExportClassVector) &&
1712                    "Unexpected type.");
1713        EB_ADD("Element.createVector(" << RenderScriptVar
1714                                       << ", Element.DataType."
1715                                       << DataTypeName << ", "
1716                                       << Size << ")");
1717      }
1718#ifndef NDEBUG
1719    } else if (ET->getClass() == RSExportType::ExportClassPointer) {
1720      // Pointer type variable should be resolved in
1721      // GetBuiltinElementConstruct()
1722      slangAssert(false && "??");
1723    } else if (ET->getClass() == RSExportType::ExportClassMatrix) {
1724      // Matrix type variable should be resolved
1725      // in GetBuiltinElementConstruct()
1726      slangAssert(false && "??");
1727#endif
1728    } else if (ET->getClass() == RSExportType::ExportClassConstantArray) {
1729      const RSExportConstantArrayType *ECAT =
1730          static_cast<const RSExportConstantArrayType *>(ET);
1731
1732      const RSExportType *ElementType = ECAT->getElementType();
1733      if (ElementType->getClass() != RSExportType::ExportClassRecord) {
1734        genAddElementToElementBuilder(C,
1735                                      ECAT->getElementType(),
1736                                      VarName,
1737                                      ElementBuilderName,
1738                                      RenderScriptVar,
1739                                      ECAT->getSize());
1740      } else {
1741        std::string NewElementBuilderName(ElementBuilderName);
1742        NewElementBuilderName.append(1, '_');
1743
1744        genBuildElement(C,
1745                        NewElementBuilderName.c_str(),
1746                        static_cast<const RSExportRecordType*>(ElementType),
1747                        RenderScriptVar,
1748                        /* IsInline = */true);
1749        ArraySize = ECAT->getSize();
1750        EB_ADD(NewElementBuilderName << ".create()");
1751      }
1752    } else if (ET->getClass() == RSExportType::ExportClassRecord) {
1753      // Simalar to case of RSExportType::ExportClassRecord in genPackVarOfType.
1754      //
1755      // TODO(zonr): Generalize these two function such that there's no
1756      //             duplicated codes.
1757      const RSExportRecordType *ERT =
1758          static_cast<const RSExportRecordType*>(ET);
1759      int Pos = 0;    // relative pos from now on
1760
1761      for (RSExportRecordType::const_field_iterator I = ERT->fields_begin(),
1762               E = ERT->fields_end();
1763           I != E;
1764           I++) {
1765        const RSExportRecordType::Field *F = *I;
1766        std::string FieldName;
1767        int FieldOffset = F->getOffsetInParent();
1768        int FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1769        int FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
1770
1771        if (!VarName.empty())
1772          FieldName = VarName + "." + F->getName();
1773        else
1774          FieldName = F->getName();
1775
1776        // Alignment
1777        genAddPaddingToElementBuiler(C,
1778                                     (FieldOffset - Pos),
1779                                     ElementBuilderName,
1780                                     RenderScriptVar);
1781
1782        // eb.add(...)
1783        C.addFieldIndexMapping(F);
1784        if (F->getType()->getClass() != RSExportType::ExportClassRecord) {
1785          genAddElementToElementBuilder(C,
1786                                        F->getType(),
1787                                        FieldName,
1788                                        ElementBuilderName,
1789                                        RenderScriptVar,
1790                                        0);
1791        } else {
1792          std::string NewElementBuilderName(ElementBuilderName);
1793          NewElementBuilderName.append(1, '_');
1794
1795          genBuildElement(C,
1796                          NewElementBuilderName.c_str(),
1797                          static_cast<const RSExportRecordType*>(F->getType()),
1798                          RenderScriptVar,
1799                          /* IsInline = */true);
1800
1801          const std::string &VarName = FieldName;  // Hack for EB_ADD macro
1802          EB_ADD(NewElementBuilderName << ".create()");
1803        }
1804
1805        if (mRSContext->getTargetAPI() < SLANG_ICS_TARGET_API) {
1806          // There is padding within the field type. This is only necessary
1807          // for HC-targeted APIs.
1808          genAddPaddingToElementBuiler(C,
1809                                       (FieldAllocSize - FieldStoreSize),
1810                                       ElementBuilderName,
1811                                       RenderScriptVar);
1812        }
1813
1814        Pos = FieldOffset + FieldAllocSize;
1815      }
1816
1817      // There maybe some padding after the struct
1818      size_t RecordAllocSize = RSExportType::GetTypeAllocSize(ERT);
1819
1820      genAddPaddingToElementBuiler(C,
1821                                   RecordAllocSize - Pos,
1822                                   ElementBuilderName,
1823                                   RenderScriptVar);
1824    } else {
1825      slangAssert(false && "Unknown class of type");
1826    }
1827  }
1828}
1829
1830void RSReflection::genAddPaddingToElementBuiler(Context &C,
1831                                                int PaddingSize,
1832                                                const char *ElementBuilderName,
1833                                                const char *RenderScriptVar) {
1834  unsigned ArraySize = 0;   // Hack the EB_ADD macro
1835  while (PaddingSize > 0) {
1836    const std::string &VarName = C.createPaddingField();
1837    if (PaddingSize >= 4) {
1838      EB_ADD("Element.U32(" << RenderScriptVar << ")");
1839      PaddingSize -= 4;
1840    } else if (PaddingSize >= 2) {
1841      EB_ADD("Element.U16(" << RenderScriptVar << ")");
1842      PaddingSize -= 2;
1843    } else if (PaddingSize >= 1) {
1844      EB_ADD("Element.U8(" << RenderScriptVar << ")");
1845      PaddingSize -= 1;
1846    }
1847  }
1848  return;
1849}
1850
1851#undef EB_ADD
1852/******** Methods to create Element in Java of given record type /end ********/
1853
1854bool RSReflection::reflect(const std::string &OutputPathBase,
1855                           const std::string &OutputPackageName,
1856                           const std::string &InputFileName,
1857                           const std::string &OutputBCFileName) {
1858  Context *C = NULL;
1859  std::string ResourceId = "";
1860  std::string PaddingPrefix = "";
1861
1862  if (mRSContext->getTargetAPI() < SLANG_ICS_TARGET_API) {
1863    PaddingPrefix = "#padding_";
1864  } else {
1865    PaddingPrefix = "#rs_padding_";
1866  }
1867
1868  if (!GetClassNameFromFileName(OutputBCFileName, ResourceId))
1869    return false;
1870
1871  if (ResourceId.empty())
1872    ResourceId = "<Resource ID>";
1873
1874  if (OutputPackageName.empty() || OutputPackageName == "-")
1875    C = new Context(OutputPathBase, InputFileName, "<Package Name>",
1876                    ResourceId, PaddingPrefix, true);
1877  else
1878    C = new Context(OutputPathBase, InputFileName, OutputPackageName,
1879                    ResourceId, PaddingPrefix, false);
1880
1881  if (C != NULL) {
1882    std::string ErrorMsg, ScriptClassName;
1883    // class ScriptC_<ScriptName>
1884    if (!GetClassNameFromFileName(InputFileName, ScriptClassName))
1885      return false;
1886
1887    if (ScriptClassName.empty())
1888      ScriptClassName = "<Input Script Name>";
1889
1890    ScriptClassName.insert(0, RS_SCRIPT_CLASS_NAME_PREFIX);
1891
1892    if (mRSContext->getLicenseNote() != NULL) {
1893      C->setLicenseNote(*(mRSContext->getLicenseNote()));
1894    }
1895
1896    if (!genScriptClass(*C, ScriptClassName, ErrorMsg)) {
1897      std::cerr << "Failed to generate class " << ScriptClassName << " ("
1898                << ErrorMsg << ")" << std::endl;
1899      return false;
1900    }
1901
1902    mGeneratedFileNames->push_back(ScriptClassName);
1903
1904    // class ScriptField_<TypeName>
1905    for (RSContext::const_export_type_iterator TI =
1906             mRSContext->export_types_begin(),
1907             TE = mRSContext->export_types_end();
1908         TI != TE;
1909         TI++) {
1910      const RSExportType *ET = TI->getValue();
1911
1912      if (ET->getClass() == RSExportType::ExportClassRecord) {
1913        const RSExportRecordType *ERT =
1914            static_cast<const RSExportRecordType*>(ET);
1915
1916        if (!ERT->isArtificial() && !genTypeClass(*C, ERT, ErrorMsg)) {
1917          std::cerr << "Failed to generate type class for struct '"
1918                    << ERT->getName() << "' (" << ErrorMsg << ")" << std::endl;
1919          return false;
1920        }
1921      }
1922    }
1923  }
1924
1925  return true;
1926}
1927
1928/************************** RSReflection::Context **************************/
1929const char *const RSReflection::Context::ApacheLicenseNote =
1930    "/*\n"
1931    " * Copyright (C) 2011-2012 The Android Open Source Project\n"
1932    " *\n"
1933    " * Licensed under the Apache License, Version 2.0 (the \"License\");\n"
1934    " * you may not use this file except in compliance with the License.\n"
1935    " * You may obtain a copy of the License at\n"
1936    " *\n"
1937    " *      http://www.apache.org/licenses/LICENSE-2.0\n"
1938    " *\n"
1939    " * Unless required by applicable law or agreed to in writing, software\n"
1940    " * distributed under the License is distributed on an \"AS IS\" BASIS,\n"
1941    " * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or "
1942    "implied.\n"
1943    " * See the License for the specific language governing permissions and\n"
1944    " * limitations under the License.\n"
1945    " */\n"
1946    "\n";
1947
1948const char *const RSReflection::Context::Import[] = {
1949  // Renderscript java class
1950  "android.renderscript.*",
1951  // Import R
1952  "android.content.res.Resources",
1953  // Import for debugging
1954  // "android.util.Log",
1955};
1956
1957bool RSReflection::Context::openClassFile(const std::string &ClassName,
1958                                          std::string &ErrorMsg) {
1959  if (!mUseStdout) {
1960    mOF.clear();
1961    std::string Path =
1962        RSSlangReflectUtils::ComputePackagedPath(mOutputPathBase.c_str(),
1963                                                 mPackageName.c_str());
1964
1965    if (!SlangUtils::CreateDirectoryWithParents(Path, &ErrorMsg))
1966      return false;
1967
1968    std::string ClassFile = Path + OS_PATH_SEPARATOR_STR + ClassName + ".java";
1969
1970    mOF.open(ClassFile.c_str());
1971    if (!mOF.good()) {
1972      ErrorMsg = "failed to open file '" + ClassFile + "' for write";
1973      return false;
1974    }
1975  }
1976  return true;
1977}
1978
1979const char *RSReflection::Context::AccessModifierStr(AccessModifier AM) {
1980  switch (AM) {
1981    case AM_Public: return "public"; break;
1982    case AM_Protected: return "protected"; break;
1983    case AM_Private: return "private"; break;
1984    case AM_PublicSynchronized: return "public synchronized"; break;
1985    default: return ""; break;
1986  }
1987}
1988
1989bool RSReflection::Context::startClass(AccessModifier AM,
1990                                       bool IsStatic,
1991                                       const std::string &ClassName,
1992                                       const char *SuperClassName,
1993                                       std::string &ErrorMsg) {
1994  if (mVerbose)
1995    std::cout << "Generating " << ClassName << ".java ..." << std::endl;
1996
1997  // Open file for class
1998  if (!openClassFile(ClassName, ErrorMsg))
1999    return false;
2000
2001  // License
2002  out() << mLicenseNote;
2003
2004  // Notice of generated file
2005  out() << "/*" << std::endl;
2006  out() << " * This file is auto-generated. DO NOT MODIFY!" << std::endl;
2007  out() << " * The source Renderscript file: " << mInputRSFile << std::endl;
2008  out() << " */" << std::endl;
2009
2010  // Package
2011  if (!mPackageName.empty())
2012    out() << "package " << mPackageName << ";" << std::endl;
2013  out() << std::endl;
2014
2015  // Imports
2016  for (unsigned i = 0; i < (sizeof(Import) / sizeof(const char*)); i++)
2017    out() << "import " << Import[i] << ";" << std::endl;
2018  out() << std::endl;
2019
2020  // All reflected classes should be annotated as hidden, so that they won't
2021  // be exposed in SDK.
2022  out() << "/**" << std::endl;
2023  out() << " * @hide" << std::endl;
2024  out() << " */" << std::endl;
2025
2026  out() << AccessModifierStr(AM) << ((IsStatic) ? " static" : "") << " class "
2027        << ClassName;
2028  if (SuperClassName != NULL)
2029    out() << " extends " << SuperClassName;
2030
2031  startBlock();
2032
2033  mClassName = ClassName;
2034
2035  return true;
2036}
2037
2038void RSReflection::Context::endClass() {
2039  endBlock();
2040  if (!mUseStdout)
2041    mOF.close();
2042  clear();
2043  return;
2044}
2045
2046void RSReflection::Context::startBlock(bool ShouldIndent) {
2047  if (ShouldIndent)
2048    indent() << "{" << std::endl;
2049  else
2050    out() << " {" << std::endl;
2051  incIndentLevel();
2052  return;
2053}
2054
2055void RSReflection::Context::endBlock() {
2056  decIndentLevel();
2057  indent() << "}" << std::endl << std::endl;
2058  return;
2059}
2060
2061void RSReflection::Context::startTypeClass(const std::string &ClassName) {
2062  indent() << "public static class " << ClassName;
2063  startBlock();
2064  return;
2065}
2066
2067void RSReflection::Context::endTypeClass() {
2068  endBlock();
2069  return;
2070}
2071
2072void RSReflection::Context::startFunction(AccessModifier AM,
2073                                          bool IsStatic,
2074                                          const char *ReturnType,
2075                                          const std::string &FunctionName,
2076                                          int Argc, ...) {
2077  ArgTy Args;
2078  va_list vl;
2079  va_start(vl, Argc);
2080
2081  for (int i = 0; i < Argc; i++) {
2082    const char *ArgType = va_arg(vl, const char*);
2083    const char *ArgName = va_arg(vl, const char*);
2084
2085    Args.push_back(std::make_pair(ArgType, ArgName));
2086  }
2087  va_end(vl);
2088
2089  startFunction(AM, IsStatic, ReturnType, FunctionName, Args);
2090
2091  return;
2092}
2093
2094void RSReflection::Context::startFunction(AccessModifier AM,
2095                                          bool IsStatic,
2096                                          const char *ReturnType,
2097                                          const std::string &FunctionName,
2098                                          const ArgTy &Args) {
2099  indent() << AccessModifierStr(AM) << ((IsStatic) ? " static " : " ")
2100           << ((ReturnType) ? ReturnType : "") << " " << FunctionName << "(";
2101
2102  bool FirstArg = true;
2103  for (ArgTy::const_iterator I = Args.begin(), E = Args.end();
2104       I != E;
2105       I++) {
2106    if (!FirstArg)
2107      out() << ", ";
2108    else
2109      FirstArg = false;
2110
2111    out() << I->first << " " << I->second;
2112  }
2113
2114  out() << ")";
2115  startBlock();
2116
2117  return;
2118}
2119
2120void RSReflection::Context::endFunction() {
2121  endBlock();
2122  return;
2123}
2124
2125}  // namespace slang
2126