slang_rs_reflection.cpp revision e639eb5caa2c386b4a60659a4929e8a6141a2cbe 
1/*
2 * Copyright 2010, 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 <string>
26#include <utility>
27
28#include "llvm/ADT/APFloat.h"
29#include "llvm/ADT/StringExtras.h"
30
31#include "slang_rs_context.h"
32#include "slang_rs_export_var.h"
33#include "slang_rs_export_func.h"
34#include "slang_rs_reflect_utils.h"
35#include "slang_utils.h"
36
37#define RS_SCRIPT_CLASS_NAME_PREFIX      "ScriptC_"
38#define RS_SCRIPT_CLASS_SUPER_CLASS_NAME "ScriptC"
39
40#define RS_TYPE_CLASS_NAME_PREFIX        "ScriptField_"
41#define RS_TYPE_CLASS_SUPER_CLASS_NAME   "android.renderscript.Script.FieldBase"
42
43#define RS_TYPE_ITEM_CLASS_NAME          "Item"
44
45#define RS_TYPE_ITEM_BUFFER_NAME         "mItemArray"
46#define RS_TYPE_ITEM_BUFFER_PACKER_NAME  "mIOBuffer"
47
48#define RS_EXPORT_VAR_INDEX_PREFIX       "mExportVarIdx_"
49#define RS_EXPORT_VAR_PREFIX             "mExportVar_"
50
51#define RS_EXPORT_FUNC_INDEX_PREFIX      "mExportFuncIdx_"
52
53#define RS_EXPORT_VAR_ALLOCATION_PREFIX  "mAlloction_"
54#define RS_EXPORT_VAR_DATA_STORAGE_PREFIX "mData_"
55
56namespace slang {
57
58// Some utility function using internal in RSReflection
59static bool GetClassNameFromFileName(const std::string &FileName,
60                                     std::string &ClassName) {
61  ClassName.clear();
62
63  if (FileName.empty() || (FileName == "-"))
64    return true;
65
66  ClassName =
67      RSSlangReflectUtils::JavaClassNameFromRSFileName(FileName.c_str());
68
69  return true;
70}
71
72static const char *GetPrimitiveTypeName(const RSExportPrimitiveType *EPT) {
73  static const char *PrimitiveTypeJavaNameMap[] = {
74    "",         // RSExportPrimitiveType::DataTypeFloat16
75    "float",    // RSExportPrimitiveType::DataTypeFloat32
76    "double",   // RSExportPrimitiveType::DataTypeFloat64
77    "byte",     // RSExportPrimitiveType::DataTypeSigned8
78    "short",    // RSExportPrimitiveType::DataTypeSigned16
79    "int",      // RSExportPrimitiveType::DataTypeSigned32
80    "long",     // RSExportPrimitiveType::DataTypeSigned64
81    "short",    // RSExportPrimitiveType::DataTypeUnsigned8
82    "int",      // RSExportPrimitiveType::DataTypeUnsigned16
83    "long",     // RSExportPrimitiveType::DataTypeUnsigned32
84    "long",     // RSExportPrimitiveType::DataTypeUnsigned64
85    "boolean",  // RSExportPrimitiveType::DataTypeBoolean
86
87    "int",      // RSExportPrimitiveType::DataTypeUnsigned565
88    "int",      // RSExportPrimitiveType::DataTypeUnsigned5551
89    "int",      // RSExportPrimitiveType::DataTypeUnsigned4444
90
91    "",     // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix2x2
92    "",     // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix3x3
93    "",     // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix4x4
94
95    "Element",      // RSExportPrimitiveType::DataTypeRSElement
96    "Type",         // RSExportPrimitiveType::DataTypeRSType
97    "Allocation",   // RSExportPrimitiveType::DataTypeRSAllocation
98    "Sampler",      // RSExportPrimitiveType::DataTypeRSSampler
99    "Script",       // RSExportPrimitiveType::DataTypeRSScript
100    "Mesh",         // RSExportPrimitiveType::DataTypeRSMesh
101    "ProgramFragment",  // RSExportPrimitiveType::DataTypeRSProgramFragment
102    "ProgramVertex",    // RSExportPrimitiveType::DataTypeRSProgramVertex
103    "ProgramRaster",    // RSExportPrimitiveType::DataTypeRSProgramRaster
104    "ProgramStore",     // RSExportPrimitiveType::DataTypeRSProgramStore
105    "Font",     // RSExportPrimitiveType::DataTypeRSFont
106  };
107  unsigned TypeId = EPT->getType();
108
109  if (TypeId < (sizeof(PrimitiveTypeJavaNameMap) / sizeof(const char*))) {
110    return PrimitiveTypeJavaNameMap[ EPT->getType() ];
111  }
112
113  assert(false && "GetPrimitiveTypeName : Unknown primitive data type");
114  return NULL;
115}
116
117static const char *GetVectorTypeName(const RSExportVectorType *EVT) {
118  static const char *VectorTypeJavaNameMap[][3] = {
119    /* 0 */ { "Byte2",  "Byte3",    "Byte4" },
120    /* 1 */ { "Short2", "Short3",   "Short4" },
121    /* 2 */ { "Int2",   "Int3",     "Int4" },
122    /* 3 */ { "Long2",  "Long3",    "Long4" },
123    /* 4 */ { "Float2", "Float3",   "Float4" },
124  };
125
126  const char **BaseElement = NULL;
127
128  switch (EVT->getType()) {
129    case RSExportPrimitiveType::DataTypeSigned8:
130    case RSExportPrimitiveType::DataTypeBoolean: {
131      BaseElement = VectorTypeJavaNameMap[0];
132      break;
133    }
134    case RSExportPrimitiveType::DataTypeSigned16:
135    case RSExportPrimitiveType::DataTypeUnsigned8: {
136      BaseElement = VectorTypeJavaNameMap[1];
137      break;
138    }
139    case RSExportPrimitiveType::DataTypeSigned32:
140    case RSExportPrimitiveType::DataTypeUnsigned16: {
141      BaseElement = VectorTypeJavaNameMap[2];
142      break;
143    }
144    case RSExportPrimitiveType::DataTypeSigned64:
145    case RSExportPrimitiveType::DataTypeUnsigned64:
146    case RSExportPrimitiveType::DataTypeUnsigned32: {
147      BaseElement = VectorTypeJavaNameMap[3];
148      break;
149    }
150    case RSExportPrimitiveType::DataTypeFloat32: {
151      BaseElement = VectorTypeJavaNameMap[4];
152      break;
153    }
154    default: {
155      assert(false && "RSReflection::genElementTypeName : Unsupported vector "
156                      "element data type");
157      break;
158    }
159  }
160
161  assert((EVT->getNumElement() > 1) &&
162         (EVT->getNumElement() <= 4) &&
163         "Number of element in vector type is invalid");
164
165  return BaseElement[EVT->getNumElement() - 2];
166}
167
168static const char *GetMatrixTypeName(const RSExportMatrixType *EMT) {
169  static const char *MatrixTypeJavaNameMap[] = {
170    /* 2x2 */ "Matrix2f",
171    /* 3x3 */ "Matrix3f",
172    /* 4x4 */ "Matrix4f",
173  };
174  unsigned Dim = EMT->getDim();
175
176  if ((Dim - 2) < (sizeof(MatrixTypeJavaNameMap) / sizeof(const char*)))
177    return MatrixTypeJavaNameMap[ EMT->getDim() - 2 ];
178
179  assert(false && "GetMatrixTypeName : Unsupported matrix dimension");
180  return NULL;
181}
182
183static const char *GetVectorAccessor(int Index) {
184  static const char *VectorAccessorMap[] = {
185    /* 0 */ "x",
186    /* 1 */ "y",
187    /* 2 */ "z",
188    /* 3 */ "w",
189  };
190
191  assert((Index >= 0) &&
192         (Index < (sizeof(VectorAccessorMap) / sizeof(const char*))) &&
193         "Out-of-bound index to access vector member");
194
195  return VectorAccessorMap[Index];
196}
197
198static const char *GetPackerAPIName(const RSExportPrimitiveType *EPT) {
199  static const char *PrimitiveTypePackerAPINameMap[] = {
200    "",         // RSExportPrimitiveType::DataTypeFloat16
201    "addF32",   // RSExportPrimitiveType::DataTypeFloat32
202    "addF64",   // RSExportPrimitiveType::DataTypeFloat64
203    "addI8",    // RSExportPrimitiveType::DataTypeSigned8
204    "addI16",   // RSExportPrimitiveType::DataTypeSigned16
205    "addI32",   // RSExportPrimitiveType::DataTypeSigned32
206    "addI64",   // RSExportPrimitiveType::DataTypeSigned64
207    "addU8",    // RSExportPrimitiveType::DataTypeUnsigned8
208    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned16
209    "addU32",   // RSExportPrimitiveType::DataTypeUnsigned32
210    "addU64",   // RSExportPrimitiveType::DataTypeUnsigned64
211    "addBoolean",  // RSExportPrimitiveType::DataTypeBoolean
212
213    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned565
214    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned5551
215    "addU16",   // RSExportPrimitiveType::DataTypeUnsigned4444
216
217    "addObj",   // RSExportPrimitiveType::DataTypeRSMatrix2x2
218    "addObj",   // RSExportPrimitiveType::DataTypeRSMatrix3x3
219    "addObj",   // RSExportPrimitiveType::DataTypeRSMatrix4x4
220
221    "addObj",   // RSExportPrimitiveType::DataTypeRSElement
222    "addObj",   // RSExportPrimitiveType::DataTypeRSType
223    "addObj",   // RSExportPrimitiveType::DataTypeRSAllocation
224    "addObj",   // RSExportPrimitiveType::DataTypeRSSampler
225    "addObj",   // RSExportPrimitiveType::DataTypeRSScript
226    "addObj",   // RSExportPrimitiveType::DataTypeRSMesh
227    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramFragment
228    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramVertex
229    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramRaster
230    "addObj",   // RSExportPrimitiveType::DataTypeRSProgramStore
231    "addObj",   // RSExportPrimitiveType::DataTypeRSFont
232  };
233  unsigned TypeId = EPT->getType();
234
235  if (TypeId < (sizeof(PrimitiveTypePackerAPINameMap) / sizeof(const char*)))
236    return PrimitiveTypePackerAPINameMap[ EPT->getType() ];
237
238  assert(false && "GetPackerAPIName : Unknown primitive data type");
239  return NULL;
240}
241
242static std::string GetTypeName(const RSExportType *ET) {
243  switch (ET->getClass()) {
244    case RSExportType::ExportClassPrimitive: {
245      return GetPrimitiveTypeName(
246                static_cast<const RSExportPrimitiveType*>(ET));
247    }
248    case RSExportType::ExportClassPointer: {
249      const RSExportType *PointeeType =
250          static_cast<const RSExportPointerType*>(ET)->getPointeeType();
251
252      if (PointeeType->getClass() != RSExportType::ExportClassRecord)
253        return "Allocation";
254      else
255        return RS_TYPE_CLASS_NAME_PREFIX + PointeeType->getName();
256    }
257    case RSExportType::ExportClassVector: {
258      return GetVectorTypeName(static_cast<const RSExportVectorType*>(ET));
259    }
260    case RSExportType::ExportClassMatrix: {
261      return GetMatrixTypeName(static_cast<const RSExportMatrixType*>(ET));
262    }
263    case RSExportType::ExportClassConstantArray: {
264      const RSExportConstantArrayType* CAT =
265          static_cast<const RSExportConstantArrayType*>(ET);
266      std::string ElementTypeName = GetTypeName(CAT->getElementType());
267      ElementTypeName.append("[]");
268      return ElementTypeName;
269    }
270    case RSExportType::ExportClassRecord: {
271      return RS_TYPE_CLASS_NAME_PREFIX + ET->getName() +
272                 "."RS_TYPE_ITEM_CLASS_NAME;
273    }
274    default: {
275      assert(false && "Unknown class of type");
276    }
277  }
278
279  return "";
280}
281
282static const char *GetTypeNullValue(const RSExportType *ET) {
283  switch (ET->getClass()) {
284    case RSExportType::ExportClassPrimitive: {
285      const RSExportPrimitiveType *EPT =
286          static_cast<const RSExportPrimitiveType*>(ET);
287      if (EPT->isRSObjectType())
288        return "null";
289      else if (EPT->getType() == RSExportPrimitiveType::DataTypeBoolean)
290        return "false";
291      else
292        return "0";
293      break;
294    }
295    case RSExportType::ExportClassPointer:
296    case RSExportType::ExportClassVector:
297    case RSExportType::ExportClassMatrix:
298    case RSExportType::ExportClassConstantArray:
299    case RSExportType::ExportClassRecord: {
300      return "null";
301      break;
302    }
303    default: {
304      assert(false && "Unknown class of type");
305    }
306  }
307  return "";
308}
309
310static const char *GetBuiltinElementConstruct(const RSExportType *ET) {
311  if (ET->getClass() == RSExportType::ExportClassPrimitive) {
312    const RSExportPrimitiveType *EPT =
313        static_cast<const RSExportPrimitiveType*>(ET);
314    if (EPT->getKind() == RSExportPrimitiveType::DataKindUser) {
315      static const char *PrimitiveBuiltinElementConstructMap[] = {
316        NULL,               // RSExportPrimitiveType::DataTypeFloat16
317        "Element.F32",      // RSExportPrimitiveType::DataTypeFloat32
318        "Element.F64",      // RSExportPrimitiveType::DataTypeFloat64
319        "Element.I8",       // RSExportPrimitiveType::DataTypeSigned8
320        NULL,               // RSExportPrimitiveType::DataTypeSigned16
321        "Element.I32",      // RSExportPrimitiveType::DataTypeSigned32
322        "Element.I64",      // RSExportPrimitiveType::DataTypeSigned64
323        "Element.U8",       // RSExportPrimitiveType::DataTypeUnsigned8
324        NULL,               // RSExportPrimitiveType::DataTypeUnsigned16
325        "Element.U32",      // RSExportPrimitiveType::DataTypeUnsigned32
326        "Element.U64",      // RSExportPrimitiveType::DataTypeUnsigned64
327        "Element.BOOLEAN",  // RSExportPrimitiveType::DataTypeBoolean
328
329        NULL,   // RSExportPrimitiveType::DataTypeUnsigned565
330        NULL,   // RSExportPrimitiveType::DataTypeUnsigned5551
331        NULL,   // RSExportPrimitiveType::DataTypeUnsigned4444
332
333        NULL,   // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix2x2
334        NULL,   // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix3x3
335        NULL,   // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix4x4
336
337        "Element.ELEMENT",      // RSExportPrimitiveType::DataTypeRSElement
338        "Element.TYPE",         // RSExportPrimitiveType::DataTypeRSType
339        "Element.ALLOCATION",   // RSExportPrimitiveType::DataTypeRSAllocation
340        "Element.SAMPLER",      // RSExportPrimitiveType::DataTypeRSSampler
341        "Element.SCRIPT",       // RSExportPrimitiveType::DataTypeRSScript
342        "Element.MESH",         // RSExportPrimitiveType::DataTypeRSMesh
343        "Element.PROGRAM_FRAGMENT",
344          // RSExportPrimitiveType::DataTypeRSProgramFragment
345        "Element.PROGRAM_VERTEX",
346          // RSExportPrimitiveType::DataTypeRSProgramVertex
347        "Element.PROGRAM_RASTER",
348          // RSExportPrimitiveType::DataTypeRSProgramRaster
349        "Element.PROGRAM_STORE",
350          // RSExportPrimitiveType::DataTypeRSProgramStore
351        "Element.FONT",
352          // RSExportPrimitiveType::DataTypeRSFont
353      };
354      unsigned TypeId = EPT->getType();
355
356      if (TypeId <
357          (sizeof(PrimitiveBuiltinElementConstructMap) / sizeof(const char*)))
358        return PrimitiveBuiltinElementConstructMap[ EPT->getType() ];
359    } else if (EPT->getKind() == RSExportPrimitiveType::DataKindPixelA) {
360      if (EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
361        return "Element.A_8";
362    } else if (EPT->getKind() == RSExportPrimitiveType::DataKindPixelRGB) {
363      if (EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned565)
364        return "Element.RGB_565";
365      else if (EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
366        return "Element.RGB_888";
367    } else if (EPT->getKind() == RSExportPrimitiveType::DataKindPixelRGBA) {
368      if (EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned5551)
369        return "Element.RGBA_5551";
370      else if (EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned4444)
371        return "Element.RGBA_4444";
372      else if (EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
373        return "Element.RGBA_8888";
374    }
375  } else if (ET->getClass() == RSExportType::ExportClassVector) {
376    const RSExportVectorType *EVT = static_cast<const RSExportVectorType*>(ET);
377    if (EVT->getKind() == RSExportPrimitiveType::DataKindUser) {
378      if (EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
379        if (EVT->getNumElement() == 2)
380          return "Element.F32_2";
381        else if (EVT->getNumElement() == 3)
382          return "Element.F32_3";
383        else if (EVT->getNumElement() == 4)
384          return "Element.F32_4";
385      } else if (EVT->getType() == RSExportPrimitiveType::DataTypeUnsigned8) {
386        if (EVT->getNumElement() == 4)
387          return "Element.U8_4";
388      }
389    }
390  } else if (ET->getClass() == RSExportType::ExportClassMatrix) {
391    const RSExportMatrixType *EMT = static_cast<const RSExportMatrixType *>(ET);
392    switch (EMT->getDim()) {
393      case 2: return "Element.MATRIX_2X2";
394      case 3: return "Element.MATRIX_3X3";
395      case 4: return "Element.MATRIX_4X4";
396      default: assert(false && "Unsupported dimension of matrix");
397    }
398  } else if (ET->getClass() == RSExportType::ExportClassPointer) {
399    // Treat pointer type variable as unsigned int
400    // TODO(zonr): this is target dependent
401    return "Element.USER_I32";
402  }
403
404  return NULL;
405}
406
407static const char *GetElementDataKindName(RSExportPrimitiveType::DataKind DK) {
408  static const char *ElementDataKindNameMap[] = {
409    "Element.DataKind.USER",        // RSExportPrimitiveType::DataKindUser
410    "Element.DataKind.PIXEL_L",     // RSExportPrimitiveType::DataKindPixelL
411    "Element.DataKind.PIXEL_A",     // RSExportPrimitiveType::DataKindPixelA
412    "Element.DataKind.PIXEL_LA",    // RSExportPrimitiveType::DataKindPixelLA
413    "Element.DataKind.PIXEL_RGB",   // RSExportPrimitiveType::DataKindPixelRGB
414    "Element.DataKind.PIXEL_RGBA",  // RSExportPrimitiveType::DataKindPixelRGBA
415  };
416
417  if (static_cast<unsigned>(DK) <
418      (sizeof(ElementDataKindNameMap) / sizeof(const char*)))
419    return ElementDataKindNameMap[ DK ];
420  else
421    return NULL;
422}
423
424static const char *GetElementDataTypeName(RSExportPrimitiveType::DataType DT) {
425  static const char *ElementDataTypeNameMap[] = {
426    NULL,                            // RSExportPrimitiveType::DataTypeFloat16
427    "Element.DataType.FLOAT_32",     // RSExportPrimitiveType::DataTypeFloat32
428    "Element.DataType.FLOAT_64",     // RSExportPrimitiveType::DataTypeFloat64
429    "Element.DataType.SIGNED_8",     // RSExportPrimitiveType::DataTypeSigned8
430    "Element.DataType.SIGNED_16",    // RSExportPrimitiveType::DataTypeSigned16
431    "Element.DataType.SIGNED_32",    // RSExportPrimitiveType::DataTypeSigned32
432    "Element.DataType.SIGNED_64",    // RSExportPrimitiveType::DataTypeSigned64
433    "Element.DataType.UNSIGNED_8",   // RSExportPrimitiveType::DataTypeUnsigned8
434    "Element.DataType.UNSIGNED_16",
435      // RSExportPrimitiveType::DataTypeUnsigned16
436    "Element.DataType.UNSIGNED_32",
437      // RSExportPrimitiveType::DataTypeUnsigned32
438    "Element.DataType.UNSIGNED_64",
439      // RSExportPrimitiveType::DataTypeUnsigned64
440    "Element.DataType.BOOLEAN",
441      // RSExportPrimitiveType::DataTypeBoolean
442
443    // RSExportPrimitiveType::DataTypeUnsigned565
444    "Element.DataType.UNSIGNED_5_6_5",
445    // RSExportPrimitiveType::DataTypeUnsigned5551
446    "Element.DataType.UNSIGNED_5_5_5_1",
447    // RSExportPrimitiveType::DataTypeUnsigned4444
448    "Element.DataType.UNSIGNED_4_4_4_4",
449
450    // DataTypeRSMatrix* must have been resolved in GetBuiltinElementConstruct()
451    NULL,  // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix2x2
452    NULL,  // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix3x3
453    NULL,  // (Dummy) RSExportPrimitiveType::DataTypeRSMatrix4x4
454
455    "Element.DataType.RS_ELEMENT",  // RSExportPrimitiveType::DataTypeRSElement
456    "Element.DataType.RS_TYPE",     // RSExportPrimitiveType::DataTypeRSType
457      // RSExportPrimitiveType::DataTypeRSAllocation
458    "Element.DataType.RS_ALLOCATION",
459      // RSExportPrimitiveType::DataTypeRSSampler
460    "Element.DataType.RS_SAMPLER",
461      // RSExportPrimitiveType::DataTypeRSScript
462    "Element.DataType.RS_SCRIPT",
463      // RSExportPrimitiveType::DataTypeRSMesh
464    "Element.DataType.RS_MESH",
465      // RSExportPrimitiveType::DataTypeRSProgramFragment
466    "Element.DataType.RS_PROGRAM_FRAGMENT",
467      // RSExportPrimitiveType::DataTypeRSProgramVertex
468    "Element.DataType.RS_PROGRAM_VERTEX",
469      // RSExportPrimitiveType::DataTypeRSProgramRaster
470    "Element.DataType.RS_PROGRAM_RASTER",
471      // RSExportPrimitiveType::DataTypeRSProgramStore
472    "Element.DataType.RS_PROGRAM_STORE",
473      // RSExportPrimitiveType::DataTypeRSFont
474    "Element.DataType.RS_FONT",
475  };
476
477  if (static_cast<unsigned>(DT) <
478      (sizeof(ElementDataTypeNameMap) / sizeof(const char*)))
479    return ElementDataTypeNameMap[ DT ];
480  else
481    return NULL;
482}
483
484/********************** Methods to generate script class **********************/
485bool RSReflection::genScriptClass(Context &C,
486                                  const std::string &ClassName,
487                                  std::string &ErrorMsg) {
488  if (!C.startClass(Context::AM_Public,
489                    false,
490                    ClassName,
491                    RS_SCRIPT_CLASS_SUPER_CLASS_NAME,
492                    ErrorMsg))
493    return false;
494
495  genScriptClassConstructor(C);
496
497  // Reflect export variable
498  for (RSContext::const_export_var_iterator I = mRSContext->export_vars_begin(),
499           E = mRSContext->export_vars_end();
500       I != E;
501       I++)
502    genExportVariable(C, *I);
503
504  // Reflect export function
505  for (RSContext::const_export_func_iterator
506           I = mRSContext->export_funcs_begin(),
507           E = mRSContext->export_funcs_end();
508       I != E; I++)
509    genExportFunction(C, *I);
510
511  C.endClass();
512
513  return true;
514}
515
516void RSReflection::genScriptClassConstructor(Context &C) {
517  C.indent() << "// Constructor" << std::endl;
518  C.startFunction(Context::AM_Public,
519                  false,
520                  NULL,
521                  C.getClassName(),
522                  3,
523                  "RenderScript", "rs",
524                  "Resources", "resources",
525                  "int", "id");
526  // Call constructor of super class
527  C.indent() << "super(rs, resources, id);" << std::endl;
528
529  // If an exported variable has initial value, reflect it
530
531  for (RSContext::const_export_var_iterator I = mRSContext->export_vars_begin(),
532           E = mRSContext->export_vars_end();
533       I != E;
534       I++) {
535    const RSExportVar *EV = *I;
536    if (!EV->getInit().isUninit())
537      genInitExportVariable(C, EV->getType(), EV->getName(), EV->getInit());
538  }
539
540  C.endFunction();
541
542  C.startFunction(Context::AM_Public,
543                  false,
544                  NULL,
545                  C.getClassName(),
546                  4,
547                  "RenderScript", "rs",
548                  "Resources", "resources",
549                  "int", "id",
550                  "boolean", "isRoot");
551  // Call constructor of super class
552  C.indent() << "super(rs, resources, id);" << std::endl;
553
554  // If an exported variable has initial value, reflect it
555
556  for (RSContext::const_export_var_iterator I = mRSContext->export_vars_begin(),
557           E = mRSContext->export_vars_end();
558       I != E;
559       I++) {
560    const RSExportVar *EV = *I;
561    if (!EV->getInit().isUninit())
562      genInitExportVariable(C, EV->getType(), EV->getName(), EV->getInit());
563  }
564
565  C.endFunction();
566
567  return;
568}
569
570void RSReflection::genInitBoolExportVariable(Context &C,
571                                             const std::string &VarName,
572                                             const clang::APValue &Val) {
573  assert(!Val.isUninit() && "Not a valid initializer");
574
575  C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
576  assert((Val.getKind() == clang::APValue::Int) &&
577         "Bool type has wrong initial APValue");
578
579  C.out() << ((Val.getInt().getSExtValue() == 0) ? "false" : "true")
580          << ";" << std::endl;
581
582  return;
583}
584
585void RSReflection::genInitPrimitiveExportVariable(
586      Context &C,
587      const std::string &VarName,
588      const clang::APValue &Val) {
589  assert(!Val.isUninit() && "Not a valid initializer");
590
591  C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
592  switch (Val.getKind()) {
593    case clang::APValue::Int: {
594      llvm::APInt api = Val.getInt();
595      C.out() << api.getSExtValue();
596      if (api.getBitWidth() > 32) {
597        C.out() << "L";
598      }
599      break;
600    }
601    case clang::APValue::Float: {
602      llvm::APFloat apf = Val.getFloat();
603      if (&apf.getSemantics() == &llvm::APFloat::IEEEsingle) {
604        C.out() << apf.convertToFloat() << "f";
605      } else {
606        C.out() << apf.convertToDouble();
607      }
608      break;
609    }
610
611    case clang::APValue::ComplexInt:
612    case clang::APValue::ComplexFloat:
613    case clang::APValue::LValue:
614    case clang::APValue::Vector: {
615      assert(false && "Primitive type cannot have such kind of initializer");
616      break;
617    }
618    default: {
619      assert(false && "Unknown kind of initializer");
620    }
621  }
622  C.out() << ";" << std::endl;
623
624  return;
625}
626
627void RSReflection::genInitExportVariable(Context &C,
628                                         const RSExportType *ET,
629                                         const std::string &VarName,
630                                         const clang::APValue &Val) {
631  assert(!Val.isUninit() && "Not a valid initializer");
632
633  switch (ET->getClass()) {
634    case RSExportType::ExportClassPrimitive: {
635      const RSExportPrimitiveType *EPT =
636          static_cast<const RSExportPrimitiveType*>(ET);
637      if (EPT->getType() == RSExportPrimitiveType::DataTypeBoolean) {
638        genInitBoolExportVariable(C, VarName, Val);
639      } else {
640        genInitPrimitiveExportVariable(C, VarName, Val);
641      }
642      break;
643    }
644    case RSExportType::ExportClassPointer: {
645      if (!Val.isInt() || Val.getInt().getSExtValue() != 0)
646        std::cout << "Initializer which is non-NULL to pointer type variable "
647                     "will be ignored" << std::endl;
648      break;
649    }
650    case RSExportType::ExportClassVector: {
651      const RSExportVectorType *EVT =
652          static_cast<const RSExportVectorType*>(ET);
653      switch (Val.getKind()) {
654        case clang::APValue::Int:
655        case clang::APValue::Float: {
656          for (unsigned i = 0; i < EVT->getNumElement(); i++) {
657            std::string Name =  VarName + "." + GetVectorAccessor(i);
658            genInitPrimitiveExportVariable(C, Name, Val);
659          }
660          break;
661        }
662        case clang::APValue::Vector: {
663          C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = new "
664                     << GetVectorTypeName(EVT) << "();" << std::endl;
665
666          unsigned NumElements =
667              std::min(static_cast<unsigned>(EVT->getNumElement()),
668                       Val.getVectorLength());
669          for (unsigned i = 0; i < NumElements; i++) {
670            const clang::APValue &ElementVal = Val.getVectorElt(i);
671            std::string Name = VarName + "." + GetVectorAccessor(i);
672            genInitPrimitiveExportVariable(C, Name, ElementVal);
673          }
674          break;
675        }
676        case clang::APValue::Uninitialized:
677        case clang::APValue::ComplexInt:
678        case clang::APValue::ComplexFloat:
679        case clang::APValue::LValue: {
680          assert(false && "Unexpected type of value of initializer.");
681        }
682      }
683      break;
684    }
685    // TODO(zonr): Resolving initializer of a record (and matrix) type variable
686    // is complex. It cannot obtain by just simply evaluating the initializer
687    // expression.
688    case RSExportType::ExportClassMatrix:
689    case RSExportType::ExportClassConstantArray:
690    case RSExportType::ExportClassRecord: {
691#if 0
692      unsigned InitIndex = 0;
693      const RSExportRecordType *ERT =
694          static_cast<const RSExportRecordType*>(ET);
695
696      assert((Val.getKind() == clang::APValue::Vector) && "Unexpected type of "
697             "initializer for record type variable");
698
699      C.indent() << RS_EXPORT_VAR_PREFIX << VarName
700                 << " = new "RS_TYPE_CLASS_NAME_PREFIX << ERT->getName()
701                 <<  "."RS_TYPE_ITEM_CLASS_NAME"();" << std::endl;
702
703      for (RSExportRecordType::const_field_iterator I = ERT->fields_begin(),
704               E = ERT->fields_end();
705           I != E;
706           I++) {
707        const RSExportRecordType::Field *F = *I;
708        std::string FieldName = VarName + "." + F->getName();
709
710        if (InitIndex > Val.getVectorLength())
711          break;
712
713        genInitPrimitiveExportVariable(C,
714                                       FieldName,
715                                       Val.getVectorElt(InitIndex++));
716      }
717#endif
718      assert(false && "Unsupported initializer for record/matrix/constant "
719                      "array type variable currently");
720      break;
721    }
722    default: {
723      assert(false && "Unknown class of type");
724    }
725  }
726  return;
727}
728
729void RSReflection::genExportVariable(Context &C, const RSExportVar *EV) {
730  const RSExportType *ET = EV->getType();
731
732  C.indent() << "private final static int "RS_EXPORT_VAR_INDEX_PREFIX
733             << EV->getName() << " = " << C.getNextExportVarSlot() << ";"
734             << std::endl;
735
736  switch (ET->getClass()) {
737    case RSExportType::ExportClassPrimitive: {
738      genPrimitiveTypeExportVariable(C, EV);
739      break;
740    }
741    case RSExportType::ExportClassPointer: {
742      genPointerTypeExportVariable(C, EV);
743      break;
744    }
745    case RSExportType::ExportClassVector: {
746      genVectorTypeExportVariable(C, EV);
747      break;
748    }
749    case RSExportType::ExportClassMatrix: {
750      genMatrixTypeExportVariable(C, EV);
751      break;
752    }
753    case RSExportType::ExportClassConstantArray: {
754      genConstantArrayTypeExportVariable(C, EV);
755      break;
756    }
757    case RSExportType::ExportClassRecord: {
758      genRecordTypeExportVariable(C, EV);
759      break;
760    }
761    default: {
762      assert(false && "Unknown class of type");
763    }
764  }
765
766  return;
767}
768
769void RSReflection::genExportFunction(Context &C, const RSExportFunc *EF) {
770  C.indent() << "private final static int "RS_EXPORT_FUNC_INDEX_PREFIX
771             << EF->getName() << " = " << C.getNextExportFuncSlot() << ";"
772             << std::endl;
773
774  // invoke_*()
775  Context::ArgTy Args;
776
777  if (EF->hasParam()) {
778    for (RSExportFunc::const_param_iterator I = EF->params_begin(),
779             E = EF->params_end();
780         I != E;
781         I++) {
782      Args.push_back(std::make_pair(GetTypeName((*I)->getType()),
783                                    (*I)->getName()));
784    }
785  }
786
787  C.startFunction(Context::AM_Public,
788                  false,
789                  "void",
790                  "invoke_" + EF->getName(),
791                  Args);
792
793  if (!EF->hasParam()) {
794    C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ");"
795               << std::endl;
796  } else {
797    const RSExportRecordType *ERT = EF->getParamPacketType();
798    std::string FieldPackerName = EF->getName() + "_fp";
799
800    if (genCreateFieldPacker(C, ERT, FieldPackerName.c_str()))
801      genPackVarOfType(C, ERT, NULL, FieldPackerName.c_str());
802
803    C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ", "
804               << FieldPackerName << ");" << std::endl;
805  }
806
807  C.endFunction();
808  return;
809}
810
811void RSReflection::genPrimitiveTypeExportVariable(
812    Context &C,
813    const RSExportVar *EV) {
814  assert((EV->getType()->getClass() == RSExportType::ExportClassPrimitive) &&
815         "Variable should be type of primitive here");
816
817  const RSExportPrimitiveType *EPT =
818      static_cast<const RSExportPrimitiveType*>(EV->getType());
819  const char *TypeName = GetPrimitiveTypeName(EPT);
820
821  C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX
822             << EV->getName() << ";" << std::endl;
823
824  // set_*()
825  if (!EV->isConst()) {
826    C.startFunction(Context::AM_Public,
827                    false,
828                    "void",
829                    "set_" + EV->getName(),
830                    1,
831                    TypeName, "v");
832    C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << std::endl;
833
834    if (EPT->isRSObjectType())
835      C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName()
836                 << ", (v == null) ? 0 : v.getID());" << std::endl;
837    else
838      C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName()
839                 << ", v);" << std::endl;
840
841    C.endFunction();
842  }
843
844  genGetExportVariable(C, TypeName, EV->getName());
845
846  return;
847}
848
849void RSReflection::genPointerTypeExportVariable(Context &C,
850                                                const RSExportVar *EV) {
851  const RSExportType *ET = EV->getType();
852  const RSExportType *PointeeType;
853  std::string TypeName;
854
855  assert((ET->getClass() == RSExportType::ExportClassPointer) &&
856         "Variable should be type of pointer here");
857
858  PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
859  TypeName = GetTypeName(ET);
860
861  C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX
862             << EV->getName() << ";" << std::endl;
863
864  // bind_*()
865  C.startFunction(Context::AM_Public,
866                  false,
867                  "void",
868                  "bind_" + EV->getName(),
869                  1,
870                  TypeName.c_str(), "v");
871
872  C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << std::endl;
873  C.indent() << "if (v == null) bindAllocation(null, "RS_EXPORT_VAR_INDEX_PREFIX
874             << EV->getName() << ");" << std::endl;
875
876  if (PointeeType->getClass() == RSExportType::ExportClassRecord)
877    C.indent() << "else bindAllocation(v.getAllocation(), "
878        RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ");"
879               << std::endl;
880  else
881    C.indent() << "else bindAllocation(v, "RS_EXPORT_VAR_INDEX_PREFIX
882               << EV->getName() << ");" << std::endl;
883
884  C.endFunction();
885
886  genGetExportVariable(C, TypeName, EV->getName());
887
888  return;
889}
890
891void RSReflection::genVectorTypeExportVariable(Context &C,
892                                               const RSExportVar *EV) {
893  assert((EV->getType()->getClass() == RSExportType::ExportClassVector) &&
894         "Variable should be type of vector here");
895
896  const RSExportVectorType *EVT =
897      static_cast<const RSExportVectorType*>(EV->getType());
898  const char *TypeName = GetVectorTypeName(EVT);
899  const char *FieldPackerName = "fp";
900
901  C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX
902             << EV->getName() << ";" << std::endl;
903
904  // set_*()
905  if (!EV->isConst()) {
906    C.startFunction(Context::AM_Public,
907                    false,
908                    "void",
909                    "set_" + EV->getName(),
910                    1,
911                    TypeName, "v");
912    C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << std::endl;
913
914    if (genCreateFieldPacker(C, EVT, FieldPackerName))
915      genPackVarOfType(C, EVT, "v", FieldPackerName);
916    C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", "
917               << FieldPackerName << ");" << std::endl;
918
919    C.endFunction();
920  }
921
922  genGetExportVariable(C, TypeName, EV->getName());
923  return;
924}
925
926void RSReflection::genMatrixTypeExportVariable(Context &C,
927                                               const RSExportVar *EV) {
928  assert((EV->getType()->getClass() == RSExportType::ExportClassMatrix) &&
929         "Variable should be type of matrix here");
930
931  const RSExportMatrixType *EMT =
932      static_cast<const RSExportMatrixType*>(EV->getType());
933  const char *TypeName = GetMatrixTypeName(EMT);
934  const char *FieldPackerName = "fp";
935
936  C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX
937             << EV->getName() << ";" << std::endl;
938
939  // set_*()
940  if (!EV->isConst()) {
941    C.startFunction(Context::AM_Public,
942                    false,
943                    "void",
944                    "set_" + EV->getName(),
945                    1,
946                    TypeName, "v");
947    C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << std::endl;
948
949    if (genCreateFieldPacker(C, EMT, FieldPackerName))
950      genPackVarOfType(C, EMT, "v", FieldPackerName);
951    C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", "
952               << FieldPackerName << ");" << std::endl;
953
954    C.endFunction();
955  }
956
957  genGetExportVariable(C, TypeName, EV->getName());
958  return;
959}
960
961void RSReflection::genConstantArrayTypeExportVariable(
962    Context &C,
963    const RSExportVar *EV) {
964  assert((EV->getType()->getClass() == RSExportType::ExportClassConstantArray)&&
965         "Variable should be type of constant array here");
966
967  const RSExportConstantArrayType *ECAT =
968      static_cast<const RSExportConstantArrayType*>(EV->getType());
969  std::string TypeName = GetTypeName(ECAT);
970  const char *FieldPackerName = "fp";
971
972  C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX
973             << EV->getName() << ";" << std::endl;
974
975  // set_*()
976  if (!EV->isConst()) {
977    C.startFunction(Context::AM_Public,
978                    false,
979                    "void",
980                    "set_" + EV->getName(),
981                    1,
982                    TypeName.c_str(), "v");
983    C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << std::endl;
984
985    if (genCreateFieldPacker(C, ECAT, FieldPackerName))
986      genPackVarOfType(C, ECAT, "v", FieldPackerName);
987    C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", "
988               << FieldPackerName << ");" << std::endl;
989
990    C.endFunction();
991  }
992
993  genGetExportVariable(C, TypeName, EV->getName());
994  return;
995}
996
997void RSReflection::genRecordTypeExportVariable(Context &C,
998                                               const RSExportVar *EV) {
999  assert((EV->getType()->getClass() == RSExportType::ExportClassRecord) &&
1000         "Variable should be type of struct here");
1001
1002  const RSExportRecordType *ERT =
1003      static_cast<const RSExportRecordType*>(EV->getType());
1004  std::string TypeName =
1005      RS_TYPE_CLASS_NAME_PREFIX + ERT->getName() + "."RS_TYPE_ITEM_CLASS_NAME;
1006  const char *FieldPackerName = "fp";
1007
1008  C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX
1009             << EV->getName() << ";" << std::endl;
1010
1011  // set_*()
1012  if (!EV->isConst()) {
1013    C.startFunction(Context::AM_Public,
1014                    false,
1015                    "void",
1016                    "set_" + EV->getName(),
1017                    1,
1018                    TypeName.c_str(), "v");
1019    C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << std::endl;
1020
1021    if (genCreateFieldPacker(C, ERT, FieldPackerName))
1022      genPackVarOfType(C, ERT, "v", FieldPackerName);
1023    C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName()
1024               << ", " << FieldPackerName << ");" << std::endl;
1025
1026    C.endFunction();
1027  }
1028
1029  genGetExportVariable(C, TypeName.c_str(), EV->getName());
1030  return;
1031}
1032
1033void RSReflection::genGetExportVariable(Context &C,
1034                                        const std::string &TypeName,
1035                                        const std::string &VarName) {
1036  C.startFunction(Context::AM_Public,
1037                  false,
1038                  TypeName.c_str(),
1039                  "get_" + VarName,
1040                  0);
1041
1042  C.indent() << "return "RS_EXPORT_VAR_PREFIX << VarName << ";" << std::endl;
1043
1044  C.endFunction();
1045  return;
1046}
1047
1048/******************* Methods to generate script class /end *******************/
1049
1050bool RSReflection::genCreateFieldPacker(Context &C,
1051                                        const RSExportType *ET,
1052                                        const char *FieldPackerName) {
1053  size_t AllocSize = RSExportType::GetTypeAllocSize(ET);
1054  if (AllocSize > 0)
1055    C.indent() << "FieldPacker " << FieldPackerName << " = new FieldPacker("
1056               << AllocSize << ");" << std::endl;
1057  else
1058    return false;
1059  return true;
1060}
1061
1062void RSReflection::genPackVarOfType(Context &C,
1063                                    const RSExportType *ET,
1064                                    const char *VarName,
1065                                    const char *FieldPackerName) {
1066  switch (ET->getClass()) {
1067    case RSExportType::ExportClassPrimitive:
1068    case RSExportType::ExportClassVector: {
1069      C.indent() << FieldPackerName << "."
1070                 << GetPackerAPIName(
1071                     static_cast<const RSExportPrimitiveType*>(ET))
1072                 << "(" << VarName << ");" << std::endl;
1073      break;
1074    }
1075    case RSExportType::ExportClassPointer: {
1076      // Must reflect as type Allocation in Java
1077      const RSExportType *PointeeType =
1078          static_cast<const RSExportPointerType*>(ET)->getPointeeType();
1079
1080      if (PointeeType->getClass() != RSExportType::ExportClassRecord)
1081        C.indent() << FieldPackerName << ".addI32(" << VarName
1082                   << ".getPtr());" << std::endl;
1083      else
1084        C.indent() << FieldPackerName << ".addI32(" << VarName
1085                   << ".getAllocation().getPtr());" << std::endl;
1086      break;
1087    }
1088    case RSExportType::ExportClassMatrix: {
1089      C.indent() << FieldPackerName << ".addObj(" << VarName << ");"
1090                 << std::endl;
1091      break;
1092    }
1093    case RSExportType::ExportClassConstantArray: {
1094      const RSExportConstantArrayType *ECAT =
1095          static_cast<const RSExportConstantArrayType *>(ET);
1096
1097      // TODO(zonr): more elegant way. Currently, we obtain the unique index
1098      //             variable (this method involves recursive call which means
1099      //             we may have more than one level loop, therefore we can't
1100      //             always use the same index variable name here) name given
1101      //             in the for-loop from counting the '.' in @VarName.
1102      unsigned Level = 0;
1103      size_t LastDotPos = 0;
1104      std::string ElementVarName(VarName);
1105
1106      while (LastDotPos != std::string::npos) {
1107        LastDotPos = ElementVarName.find_first_of('.', LastDotPos + 1);
1108        Level++;
1109      }
1110      std::string IndexVarName("ct");
1111      IndexVarName.append(llvm::utostr_32(Level));
1112
1113      C.indent() << "for (int " << IndexVarName << " = 0; " <<
1114                          IndexVarName << " < " << ECAT->getSize() << "; " <<
1115                          IndexVarName << "++)";
1116      C.startBlock();
1117
1118      ElementVarName.append("[" + IndexVarName + "]");
1119      genPackVarOfType(C, ECAT->getElementType(), ElementVarName.c_str(),
1120                       FieldPackerName);
1121
1122      C.endBlock();
1123      break;
1124    }
1125    case RSExportType::ExportClassRecord: {
1126      const RSExportRecordType *ERT =
1127          static_cast<const RSExportRecordType*>(ET);
1128      // Relative pos from now on in field packer
1129      unsigned Pos = 0;
1130
1131      for (RSExportRecordType::const_field_iterator I = ERT->fields_begin(),
1132               E = ERT->fields_end();
1133           I != E;
1134           I++) {
1135        const RSExportRecordType::Field *F = *I;
1136        std::string FieldName;
1137        size_t FieldOffset = F->getOffsetInParent();
1138        size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1139        size_t FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
1140
1141        if (VarName != NULL)
1142          FieldName = VarName + ("." + F->getName());
1143        else
1144          FieldName = F->getName();
1145
1146        if (FieldOffset > Pos)
1147          C.indent() << FieldPackerName << ".skip("
1148                     << (FieldOffset - Pos) << ");" << std::endl;
1149
1150        genPackVarOfType(C, F->getType(), FieldName.c_str(), FieldPackerName);
1151
1152        // There is padding in the field type
1153        if (FieldAllocSize > FieldStoreSize)
1154            C.indent() << FieldPackerName << ".skip("
1155                       << (FieldAllocSize - FieldStoreSize)
1156                       << ");" << std::endl;
1157
1158          Pos = FieldOffset + FieldAllocSize;
1159      }
1160
1161      // There maybe some padding after the struct
1162      size_t Padding = RSExportType::GetTypeAllocSize(ERT) - Pos;
1163      if (Padding > 0)
1164        C.indent() << FieldPackerName << ".skip(" << Padding << ");"
1165                   << std::endl;
1166      break;
1167    }
1168    default: {
1169      assert(false && "Unknown class of type");
1170    }
1171  }
1172
1173  return;
1174}
1175
1176void RSReflection::genAllocateVarOfType(Context &C,
1177                                        const RSExportType *T,
1178                                        const std::string &VarName) {
1179  switch (T->getClass()) {
1180    case RSExportType::ExportClassPrimitive: {
1181      // Primitive type like int in Java has its own storage once it's declared.
1182      //
1183      // FIXME: Should we allocate storage for RS object?
1184      // if (static_cast<const RSExportPrimitiveType *>(T)->isRSObjectType())
1185      //  C.indent() << VarName << " = new " << GetTypeName(T) << "();"
1186      //             << std::endl;
1187      break;
1188    }
1189    case RSExportType::ExportClassPointer: {
1190      // Pointer type is an instance of Allocation or a TypeClass whose value is
1191      // expected to be assigned by programmer later in Java program. Therefore
1192      // we don't reflect things like [VarName] = new Allocation();
1193      C.indent() << VarName << " = null;" << std::endl;
1194      break;
1195    }
1196    case RSExportType::ExportClassConstantArray: {
1197      const RSExportConstantArrayType *ECAT =
1198          static_cast<const RSExportConstantArrayType *>(T);
1199      const RSExportType *ElementType = ECAT->getElementType();
1200
1201      C.indent() << VarName << " = new " << GetTypeName(ElementType)
1202                 << "[" << ECAT->getSize() << "];" << std::endl;
1203
1204      // Primitive type element doesn't need allocation code.
1205      if (ElementType->getClass() != RSExportType::ExportClassPrimitive) {
1206        C.indent() << "for (int $ct = 0; $ct < " << ECAT->getSize() << "; "
1207                            "$ct++)";
1208        C.startBlock();
1209
1210        std::string ElementVarName(VarName);
1211        ElementVarName.append("[$ct]");
1212        genAllocateVarOfType(C, ElementType, ElementVarName);
1213
1214        C.endBlock();
1215      }
1216      break;
1217    }
1218    case RSExportType::ExportClassVector:
1219    case RSExportType::ExportClassMatrix:
1220    case RSExportType::ExportClassRecord: {
1221      C.indent() << VarName << " = new " << GetTypeName(T) << "();"
1222                 << std::endl;
1223      break;
1224    }
1225  }
1226  return;
1227}
1228
1229void RSReflection::genNewItemBufferIfNull(Context &C,
1230                                          const char *Index) {
1231  C.indent() << "if (" RS_TYPE_ITEM_BUFFER_NAME " == null) "
1232                  RS_TYPE_ITEM_BUFFER_NAME " = "
1233                    "new " RS_TYPE_ITEM_CLASS_NAME
1234                      "[getType().getX() /* count */];"
1235             << std::endl;
1236  if (Index != NULL)
1237    C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME"[" << Index << "] == null) "
1238                    RS_TYPE_ITEM_BUFFER_NAME"[" << Index << "] = "
1239                      "new "RS_TYPE_ITEM_CLASS_NAME"();" << std::endl;
1240  return;
1241}
1242
1243void RSReflection::genNewItemBufferPackerIfNull(Context &C) {
1244  C.indent() << "if (" RS_TYPE_ITEM_BUFFER_PACKER_NAME " == null) "
1245                  RS_TYPE_ITEM_BUFFER_PACKER_NAME " = "
1246                    "new FieldPacker(" RS_TYPE_ITEM_CLASS_NAME
1247                      ".sizeof * getType().getX()/* count */"
1248                        ");" << std::endl;
1249  return;
1250}
1251
1252/********************** Methods to generate type class  **********************/
1253bool RSReflection::genTypeClass(Context &C,
1254                                const RSExportRecordType *ERT,
1255                                std::string &ErrorMsg) {
1256  std::string ClassName = RS_TYPE_CLASS_NAME_PREFIX + ERT->getName();
1257
1258  if (!C.startClass(Context::AM_Public,
1259                    false,
1260                    ClassName,
1261                    RS_TYPE_CLASS_SUPER_CLASS_NAME,
1262                    ErrorMsg))
1263    return false;
1264
1265  genTypeItemClass(C, ERT);
1266
1267  // Declare item buffer and item buffer packer
1268  C.indent() << "private "RS_TYPE_ITEM_CLASS_NAME" "RS_TYPE_ITEM_BUFFER_NAME"[]"
1269      ";" << std::endl;
1270  C.indent() << "private FieldPacker "RS_TYPE_ITEM_BUFFER_PACKER_NAME";"
1271             << std::endl;
1272
1273  genTypeClassConstructor(C, ERT);
1274  genTypeClassCopyToArray(C, ERT);
1275  genTypeClassItemSetter(C, ERT);
1276  genTypeClassItemGetter(C, ERT);
1277  genTypeClassComponentSetter(C, ERT);
1278  genTypeClassComponentGetter(C, ERT);
1279  genTypeClassCopyAll(C, ERT);
1280  genTypeClassResize(C);
1281
1282  C.endClass();
1283
1284  C.resetFieldIndex();
1285  C.clearFieldIndexMap();
1286
1287  return true;
1288}
1289
1290void RSReflection::genTypeItemClass(Context &C,
1291                                    const RSExportRecordType *ERT) {
1292  C.indent() << "static public class "RS_TYPE_ITEM_CLASS_NAME;
1293  C.startBlock();
1294
1295  C.indent() << "public static final int sizeof = "
1296             << RSExportType::GetTypeAllocSize(ERT) << ";" << std::endl;
1297
1298  // Member elements
1299  C.out() << std::endl;
1300  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1301           FE = ERT->fields_end();
1302       FI != FE;
1303       FI++) {
1304    C.indent() << GetTypeName((*FI)->getType()) << " " << (*FI)->getName()
1305               << ";" << std::endl;
1306  }
1307
1308  // Constructor
1309  C.out() << std::endl;
1310  C.indent() << RS_TYPE_ITEM_CLASS_NAME"()";
1311  C.startBlock();
1312
1313  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1314           FE = ERT->fields_end();
1315       FI != FE;
1316       FI++) {
1317    const RSExportRecordType::Field *F = *FI;
1318    genAllocateVarOfType(C, F->getType(), F->getName());
1319  }
1320
1321  // end Constructor
1322  C.endBlock();
1323
1324  // end Item class
1325  C.endBlock();
1326
1327  return;
1328}
1329
1330void RSReflection::genTypeClassConstructor(Context &C,
1331                                           const RSExportRecordType *ERT) {
1332  const char *RenderScriptVar = "rs";
1333
1334  C.startFunction(Context::AM_Public,
1335                  true,
1336                  "Element",
1337                  "createElement",
1338                  1,
1339                  "RenderScript", RenderScriptVar);
1340  genBuildElement(C, "eb", ERT, RenderScriptVar, /* IsInline = */false);
1341  C.endFunction();
1342
1343  C.startFunction(Context::AM_Public,
1344                  false,
1345                  NULL,
1346                  C.getClassName(),
1347                  2,
1348                  "RenderScript", RenderScriptVar,
1349                  "int", "count");
1350
1351  C.indent() << RS_TYPE_ITEM_BUFFER_NAME" = null;" << std::endl;
1352  C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME" = null;" << std::endl;
1353  C.indent() << "mElement = createElement(" << RenderScriptVar << ");"
1354             << std::endl;
1355  // Call init() in super class
1356  C.indent() << "init(" << RenderScriptVar << ", count);" << std::endl;
1357  C.endFunction();
1358
1359  return;
1360}
1361
1362void RSReflection::genTypeClassCopyToArray(Context &C,
1363                                           const RSExportRecordType *ERT) {
1364  C.startFunction(Context::AM_Private,
1365                  false,
1366                  "void",
1367                  "copyToArray",
1368                  2,
1369                  RS_TYPE_ITEM_CLASS_NAME, "i",
1370                  "int", "index");
1371
1372  genNewItemBufferPackerIfNull(C);
1373  C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME
1374                ".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof);"
1375             << std::endl;
1376
1377  genPackVarOfType(C, ERT, "i", RS_TYPE_ITEM_BUFFER_PACKER_NAME);
1378
1379  C.endFunction();
1380  return;
1381}
1382
1383void RSReflection::genTypeClassItemSetter(Context &C,
1384                                          const RSExportRecordType *ERT) {
1385  C.startFunction(Context::AM_Public,
1386                  false,
1387                  "void",
1388                  "set",
1389                  3,
1390                  RS_TYPE_ITEM_CLASS_NAME, "i",
1391                  "int", "index",
1392                  "boolean", "copyNow");
1393  genNewItemBufferIfNull(C, NULL);
1394  C.indent() << RS_TYPE_ITEM_BUFFER_NAME"[index] = i;" << std::endl;
1395
1396  C.indent() << "if (copyNow) ";
1397  C.startBlock();
1398
1399  C.indent() << "copyToArray(i, index);" << std::endl;
1400  C.indent() << "mAllocation.subData1D(index, 1, "
1401                  RS_TYPE_ITEM_BUFFER_PACKER_NAME".getData());" << std::endl;
1402
1403  // End of if (copyNow)
1404  C.endBlock();
1405
1406  C.endFunction();
1407  return;
1408}
1409
1410void RSReflection::genTypeClassItemGetter(Context &C,
1411                                          const RSExportRecordType *ERT) {
1412  C.startFunction(Context::AM_Public,
1413                  false,
1414                  RS_TYPE_ITEM_CLASS_NAME,
1415                  "get",
1416                  1,
1417                  "int", "index");
1418  C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME" == null) return null;"
1419             << std::endl;
1420  C.indent() << "return "RS_TYPE_ITEM_BUFFER_NAME"[index];" << std::endl;
1421  C.endFunction();
1422  return;
1423}
1424
1425void RSReflection::genTypeClassComponentSetter(Context &C,
1426                                               const RSExportRecordType *ERT) {
1427  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1428           FE = ERT->fields_end();
1429       FI != FE;
1430       FI++) {
1431    const RSExportRecordType::Field *F = *FI;
1432    size_t FieldOffset = F->getOffsetInParent();
1433    size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1434    unsigned FieldIndex = C.getFieldIndex(F);
1435
1436    C.startFunction(Context::AM_Public,
1437                    false,
1438                    "void",
1439                    "set_" + F->getName(), 3,
1440                    "int", "index",
1441                    GetTypeName(F->getType()).c_str(), "v",
1442                    "boolean", "copyNow");
1443    genNewItemBufferPackerIfNull(C);
1444    genNewItemBufferIfNull(C, "index");
1445    C.indent() << RS_TYPE_ITEM_BUFFER_NAME"[index]." << F->getName()
1446               << " = v;" << std::endl;
1447
1448    C.indent() << "if (copyNow) ";
1449    C.startBlock();
1450
1451    if (FieldOffset > 0)
1452      C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME
1453                    ".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof + "
1454                 << FieldOffset << ");" << std::endl;
1455    else
1456      C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME
1457                    ".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof);"
1458                 << std::endl;
1459    genPackVarOfType(C, F->getType(), "v", RS_TYPE_ITEM_BUFFER_PACKER_NAME);
1460
1461    C.indent() << "FieldPacker fp = new FieldPacker(" << FieldStoreSize << ");"
1462               << std::endl;
1463    genPackVarOfType(C, F->getType(), "v", "fp");
1464    C.indent() << "mAllocation.subElementData(index, " << FieldIndex << ", fp);"
1465               << std::endl;
1466
1467    // End of if (copyNow)
1468    C.endBlock();
1469
1470    C.endFunction();
1471  }
1472  return;
1473}
1474
1475void RSReflection::genTypeClassComponentGetter(Context &C,
1476                                               const RSExportRecordType *ERT) {
1477  for (RSExportRecordType::const_field_iterator FI = ERT->fields_begin(),
1478           FE = ERT->fields_end();
1479       FI != FE;
1480       FI++) {
1481    const RSExportRecordType::Field *F = *FI;
1482    C.startFunction(Context::AM_Public,
1483                    false,
1484                    GetTypeName(F->getType()).c_str(),
1485                    "get_" + F->getName(),
1486                    1,
1487                    "int", "index");
1488    C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME" == null) return "
1489               << GetTypeNullValue(F->getType()) << ";" << std::endl;
1490    C.indent() << "return "RS_TYPE_ITEM_BUFFER_NAME"[index]." << F->getName()
1491               << ";" << std::endl;
1492    C.endFunction();
1493  }
1494  return;
1495}
1496
1497void RSReflection::genTypeClassCopyAll(Context &C,
1498                                       const RSExportRecordType *ERT) {
1499  C.startFunction(Context::AM_Public, false, "void", "copyAll", 0);
1500
1501  C.indent() << "for (int ct = 0; ct < "RS_TYPE_ITEM_BUFFER_NAME".length; ct++)"
1502                  " copyToArray("RS_TYPE_ITEM_BUFFER_NAME"[ct], ct);"
1503             << std::endl;
1504  C.indent() << "mAllocation.data("RS_TYPE_ITEM_BUFFER_PACKER_NAME".getData());"
1505             << std::endl;
1506
1507  C.endFunction();
1508  return;
1509}
1510
1511void RSReflection::genTypeClassResize(Context &C) {
1512  C.startFunction(Context::AM_Public,
1513                  false,
1514                  "void",
1515                  "resize",
1516                  1,
1517                  "int", "newSize");
1518
1519  C.indent() << "if (mItemArray != null) ";
1520  C.startBlock();
1521  C.indent() << "int oldSize = mItemArray.length;" << std::endl;
1522  C.indent() << "int copySize = Math.min(oldSize, newSize);" << std::endl;
1523  C.indent() << "if (newSize == oldSize) return;" << std::endl;
1524  C.indent() << "Item ni[] = new Item[newSize];" << std::endl;
1525  C.indent() << "System.arraycopy(mItemArray, 0, ni, 0, copySize);"
1526             << std::endl;
1527  C.indent() << "mItemArray = ni;" << std::endl;
1528  C.endBlock();
1529  C.indent() << "mAllocation.resize(newSize);" << std::endl;
1530
1531  C.endFunction();
1532  return;
1533}
1534
1535/******************** Methods to generate type class /end ********************/
1536
1537/********** Methods to create Element in Java of given record type ***********/
1538void RSReflection::genBuildElement(Context &C,
1539                                   const char *ElementBuilderName,
1540                                   const RSExportRecordType *ERT,
1541                                   const char *RenderScriptVar,
1542                                   bool IsInline) {
1543  C.indent() << "Element.Builder " << ElementBuilderName << " = "
1544      "new Element.Builder(" << RenderScriptVar << ");" << std::endl;
1545
1546  // eb.add(...)
1547  genAddElementToElementBuilder(C,
1548                                ERT,
1549                                "",
1550                                ElementBuilderName,
1551                                RenderScriptVar,
1552                                /* ArraySize = */0);
1553
1554  if (!IsInline)
1555    C.indent() << "return " << ElementBuilderName << ".create();" << std::endl;
1556  return;
1557}
1558
1559#define EB_ADD(x) do {                                              \
1560  C.indent() << ElementBuilderName                                  \
1561             << ".add(" << x << ", \"" << VarName << "\"";  \
1562  if (ArraySize > 0)                                                \
1563    C.out() << ", " << ArraySize;                                   \
1564  C.out() << ");" << std::endl;                                     \
1565  C.incFieldIndex();                                                \
1566} while (false)
1567
1568void RSReflection::genAddElementToElementBuilder(Context &C,
1569                                                 const RSExportType *ET,
1570                                                 const std::string &VarName,
1571                                                 const char *ElementBuilderName,
1572                                                 const char *RenderScriptVar,
1573                                                 unsigned ArraySize) {
1574  const char *ElementConstruct = GetBuiltinElementConstruct(ET);
1575
1576  if (ElementConstruct != NULL) {
1577    EB_ADD(ElementConstruct << "(" << RenderScriptVar << ")");
1578  } else {
1579    if ((ET->getClass() == RSExportType::ExportClassPrimitive) ||
1580        (ET->getClass() == RSExportType::ExportClassVector)) {
1581      const RSExportPrimitiveType *EPT =
1582          static_cast<const RSExportPrimitiveType*>(ET);
1583      const char *DataKindName = GetElementDataKindName(EPT->getKind());
1584      const char *DataTypeName = GetElementDataTypeName(EPT->getType());
1585      int Size = (ET->getClass() == RSExportType::ExportClassVector) ?
1586          static_cast<const RSExportVectorType*>(ET)->getNumElement() :
1587          1;
1588
1589      switch (EPT->getKind()) {
1590        case RSExportPrimitiveType::DataKindPixelL:
1591        case RSExportPrimitiveType::DataKindPixelA:
1592        case RSExportPrimitiveType::DataKindPixelLA:
1593        case RSExportPrimitiveType::DataKindPixelRGB:
1594        case RSExportPrimitiveType::DataKindPixelRGBA: {
1595          // Element.createPixel()
1596          EB_ADD("Element.createPixel(" << RenderScriptVar << ", "
1597                                        << DataTypeName << ", "
1598                                        << DataKindName << ")");
1599          break;
1600        }
1601        case RSExportPrimitiveType::DataKindUser:
1602        default: {
1603          if (EPT->getClass() == RSExportType::ExportClassPrimitive) {
1604            // Element.createUser()
1605            EB_ADD("Element.createUser(" << RenderScriptVar << ", "
1606                                         << DataTypeName << ")");
1607          } else {
1608            assert((ET->getClass() == RSExportType::ExportClassVector) &&
1609                   "Unexpected type.");
1610            EB_ADD("Element.createVector(" << RenderScriptVar << ", "
1611                                           << DataTypeName << ", "
1612                                           << Size << ")");
1613          }
1614          break;
1615        }
1616      }
1617#ifndef NDEBUG
1618    } else if (ET->getClass() == RSExportType::ExportClassPointer) {
1619      // Pointer type variable should be resolved in
1620      // GetBuiltinElementConstruct()
1621      assert(false && "??");
1622    } else if (ET->getClass() == RSExportType::ExportClassMatrix) {
1623      // Matrix type variable should be resolved
1624      // in GetBuiltinElementConstruct()
1625      assert(false && "??");
1626#endif
1627    } else if (ET->getClass() == RSExportType::ExportClassConstantArray) {
1628      const RSExportConstantArrayType *ECAT =
1629          static_cast<const RSExportConstantArrayType *>(ET);
1630
1631      const RSExportType *ElementType = ECAT->getElementType();
1632      if (ElementType->getClass() != RSExportType::ExportClassRecord) {
1633        genAddElementToElementBuilder(C,
1634                                      ECAT->getElementType(),
1635                                      VarName,
1636                                      ElementBuilderName,
1637                                      RenderScriptVar,
1638                                      ECAT->getSize());
1639      } else {
1640        std::string NewElementBuilderName(ElementBuilderName);
1641        NewElementBuilderName.append(1, '_');
1642
1643        genBuildElement(C,
1644                        NewElementBuilderName.c_str(),
1645                        static_cast<const RSExportRecordType*>(ElementType),
1646                        RenderScriptVar,
1647                        /* IsInline = */true);
1648        ArraySize = ECAT->getSize();
1649        EB_ADD(NewElementBuilderName << ".create()");
1650      }
1651    } else if (ET->getClass() == RSExportType::ExportClassRecord) {
1652      // Simalar to case of RSExportType::ExportClassRecord in genPackVarOfType.
1653      //
1654      // TODO(zonr): Generalize these two function such that there's no
1655      //             duplicated codes.
1656      const RSExportRecordType *ERT =
1657          static_cast<const RSExportRecordType*>(ET);
1658      int Pos = 0;    // relative pos from now on
1659
1660      for (RSExportRecordType::const_field_iterator I = ERT->fields_begin(),
1661               E = ERT->fields_end();
1662           I != E;
1663           I++) {
1664        const RSExportRecordType::Field *F = *I;
1665        std::string FieldName;
1666        int FieldOffset = F->getOffsetInParent();
1667        int FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1668        int FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
1669
1670        if (!VarName.empty())
1671          FieldName = VarName + "." + F->getName();
1672        else
1673          FieldName = F->getName();
1674
1675        // Alignment
1676        genAddPaddingToElementBuiler(C,
1677                                     (FieldOffset - Pos),
1678                                     ElementBuilderName,
1679                                     RenderScriptVar);
1680
1681        // eb.add(...)
1682        C.addFieldIndexMapping(F);
1683        if (F->getType()->getClass() != RSExportType::ExportClassRecord) {
1684          genAddElementToElementBuilder(C,
1685                                        F->getType(),
1686                                        FieldName,
1687                                        ElementBuilderName,
1688                                        RenderScriptVar,
1689                                        0);
1690        } else {
1691          std::string NewElementBuilderName(ElementBuilderName);
1692          NewElementBuilderName.append(1, '_');
1693
1694          genBuildElement(C,
1695                          NewElementBuilderName.c_str(),
1696                          static_cast<const RSExportRecordType*>(F->getType()),
1697                          RenderScriptVar,
1698                          /* IsInline = */true);
1699
1700          const std::string &VarName = FieldName;  // Hack for EB_ADD macro
1701          EB_ADD(NewElementBuilderName << ".create()");
1702        }
1703
1704        // There is padding within the field type
1705        genAddPaddingToElementBuiler(C,
1706                                     (FieldAllocSize - FieldStoreSize),
1707                                     ElementBuilderName,
1708                                     RenderScriptVar);
1709
1710        Pos = FieldOffset + FieldAllocSize;
1711      }
1712
1713      // There maybe some padding after the struct
1714      size_t RecordStoreSize = RSExportType::GetTypeStoreSize(ERT);
1715
1716      genAddPaddingToElementBuiler(C,
1717                                   RecordStoreSize - Pos,
1718                                   ElementBuilderName,
1719                                   RenderScriptVar);
1720    } else {
1721      assert(false && "Unknown class of type");
1722    }
1723  }
1724}
1725
1726void RSReflection::genAddPaddingToElementBuiler(Context &C,
1727                                                int PaddingSize,
1728                                                const char *ElementBuilderName,
1729                                                const char *RenderScriptVar) {
1730  unsigned ArraySize = 0;   // Hack the EB_ADD macro
1731  while (PaddingSize > 0) {
1732    const std::string &VarName = C.createPaddingField();
1733    if (PaddingSize >= 4) {
1734      EB_ADD("Element.U32(" << RenderScriptVar << ")");
1735      PaddingSize -= 4;
1736    } else if (PaddingSize >= 2) {
1737      EB_ADD("Element.U16(" << RenderScriptVar << ")");
1738      PaddingSize -= 2;
1739    } else if (PaddingSize >= 1) {
1740      EB_ADD("Element.U8(" << RenderScriptVar << ")");
1741      PaddingSize -= 1;
1742    }
1743  }
1744  return;
1745}
1746
1747#undef EB_ADD
1748/******** Methods to create Element in Java of given record type /end ********/
1749
1750bool RSReflection::reflect(const std::string &OutputPathBase,
1751                           const std::string &OutputPackageName,
1752                           const std::string &InputFileName,
1753                           const std::string &OutputBCFileName) {
1754  Context *C = NULL;
1755  std::string ResourceId = "";
1756
1757  if (!GetClassNameFromFileName(OutputBCFileName, ResourceId))
1758    return false;
1759
1760  if (ResourceId.empty())
1761    ResourceId = "<Resource ID>";
1762
1763  if (OutputPackageName.empty() || OutputPackageName == "-")
1764    C = new Context(OutputPathBase, InputFileName, "<Package Name>",
1765                    ResourceId, true);
1766  else
1767    C = new Context(OutputPathBase, InputFileName, OutputPackageName,
1768                    ResourceId, false);
1769
1770  if (C != NULL) {
1771    std::string ErrorMsg, ScriptClassName;
1772    // class ScriptC_<ScriptName>
1773    if (!GetClassNameFromFileName(InputFileName, ScriptClassName))
1774      return false;
1775
1776    if (ScriptClassName.empty())
1777      ScriptClassName = "<Input Script Name>";
1778
1779    ScriptClassName.insert(0, RS_SCRIPT_CLASS_NAME_PREFIX);
1780
1781    if (mRSContext->getLicenseNote() != NULL) {
1782      C->setLicenseNote(*(mRSContext->getLicenseNote()));
1783    }
1784
1785    if (!genScriptClass(*C, ScriptClassName, ErrorMsg)) {
1786      std::cerr << "Failed to generate class " << ScriptClassName << " ("
1787                << ErrorMsg << ")" << std::endl;
1788      return false;
1789    }
1790
1791    // class ScriptField_<TypeName>
1792    for (RSContext::const_export_type_iterator TI =
1793             mRSContext->export_types_begin(),
1794             TE = mRSContext->export_types_end();
1795         TI != TE;
1796         TI++) {
1797      const RSExportType *ET = TI->getValue();
1798
1799      if (ET->getClass() == RSExportType::ExportClassRecord) {
1800        const RSExportRecordType *ERT =
1801            static_cast<const RSExportRecordType*>(ET);
1802
1803        if (!ERT->isArtificial() && !genTypeClass(*C, ERT, ErrorMsg)) {
1804          std::cerr << "Failed to generate type class for struct '"
1805                    << ERT->getName() << "' (" << ErrorMsg << ")" << std::endl;
1806          return false;
1807        }
1808      }
1809    }
1810  }
1811
1812  return true;
1813}
1814
1815/************************** RSReflection::Context **************************/
1816const char *const RSReflection::Context::ApacheLicenseNote =
1817    "/*\n"
1818    " * Copyright (C) 2010 The Android Open Source Project\n"
1819    " *\n"
1820    " * Licensed under the Apache License, Version 2.0 (the \"License\");\n"
1821    " * you may not use this file except in compliance with the License.\n"
1822    " * You may obtain a copy of the License at\n"
1823    " *\n"
1824    " *      http://www.apache.org/licenses/LICENSE-2.0\n"
1825    " *\n"
1826    " * Unless required by applicable law or agreed to in writing, software\n"
1827    " * distributed under the License is distributed on an \"AS IS\" BASIS,\n"
1828    " * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or "
1829    "implied.\n"
1830    " * See the License for the specific language governing permissions and\n"
1831    " * limitations under the License.\n"
1832    " */\n"
1833    "\n";
1834
1835const char *const RSReflection::Context::Import[] = {
1836  // RenderScript java class
1837  "android.renderscript.*",
1838  // Import R
1839  "android.content.res.Resources",
1840  // Import for debugging
1841  "android.util.Log",
1842};
1843
1844bool RSReflection::Context::openClassFile(const std::string &ClassName,
1845                                          std::string &ErrorMsg) {
1846  if (!mUseStdout) {
1847    mOF.clear();
1848    std::string Path =
1849        RSSlangReflectUtils::ComputePackagedPath(mOutputPathBase.c_str(),
1850                                                 mPackageName.c_str());
1851
1852    if (!SlangUtils::CreateDirectoryWithParents(Path, &ErrorMsg))
1853      return false;
1854
1855    std::string ClassFile = Path + "/" + ClassName + ".java";
1856
1857    mOF.open(ClassFile.c_str());
1858    if (!mOF.good()) {
1859      ErrorMsg = "failed to open file '" + ClassFile + "' for write";
1860      return false;
1861    }
1862  }
1863  return true;
1864}
1865
1866const char *RSReflection::Context::AccessModifierStr(AccessModifier AM) {
1867  switch (AM) {
1868    case AM_Public: return "public"; break;
1869    case AM_Protected: return "protected"; break;
1870    case AM_Private: return "private"; break;
1871    default: return ""; break;
1872  }
1873}
1874
1875bool RSReflection::Context::startClass(AccessModifier AM,
1876                                       bool IsStatic,
1877                                       const std::string &ClassName,
1878                                       const char *SuperClassName,
1879                                       std::string &ErrorMsg) {
1880  if (mVerbose)
1881    std::cout << "Generating " << ClassName << ".java ..." << std::endl;
1882
1883  // Open file for class
1884  if (!openClassFile(ClassName, ErrorMsg))
1885    return false;
1886
1887  // License
1888  out() << mLicenseNote;
1889
1890  // Notice of generated file
1891  out() << "/*" << std::endl;
1892  out() << " * This file is auto-generated. DO NOT MODIFY!" << std::endl;
1893  out() << " * The source RenderScript file: " << mInputRSFile << std::endl;
1894  out() << " */" << std::endl;
1895
1896  // Package
1897  if (!mPackageName.empty())
1898    out() << "package " << mPackageName << ";" << std::endl;
1899  out() << std::endl;
1900
1901  // Imports
1902  for (unsigned i = 0; i < (sizeof(Import) / sizeof(const char*)); i++)
1903    out() << "import " << Import[i] << ";" << std::endl;
1904  out() << std::endl;
1905
1906  // All reflected classes should be annotated as hidden, so that they won't
1907  // be exposed in SDK.
1908  out() << "/**" << std::endl;
1909  out() << " * @hide" << std::endl;
1910  out() << " */" << std::endl;
1911
1912  out() << AccessModifierStr(AM) << ((IsStatic) ? " static" : "") << " class "
1913        << ClassName;
1914  if (SuperClassName != NULL)
1915    out() << " extends " << SuperClassName;
1916
1917  startBlock();
1918
1919  mClassName = ClassName;
1920
1921  return true;
1922}
1923
1924void RSReflection::Context::endClass() {
1925  endBlock();
1926  if (!mUseStdout)
1927    mOF.close();
1928  clear();
1929  return;
1930}
1931
1932void RSReflection::Context::startBlock(bool ShouldIndent) {
1933  if (ShouldIndent)
1934    indent() << "{" << std::endl;
1935  else
1936    out() << " {" << std::endl;
1937  incIndentLevel();
1938  return;
1939}
1940
1941void RSReflection::Context::endBlock() {
1942  decIndentLevel();
1943  indent() << "}" << std::endl << std::endl;
1944  return;
1945}
1946
1947void RSReflection::Context::startTypeClass(const std::string &ClassName) {
1948  indent() << "public static class " << ClassName;
1949  startBlock();
1950  return;
1951}
1952
1953void RSReflection::Context::endTypeClass() {
1954  endBlock();
1955  return;
1956}
1957
1958void RSReflection::Context::startFunction(AccessModifier AM,
1959                                          bool IsStatic,
1960                                          const char *ReturnType,
1961                                          const std::string &FunctionName,
1962                                          int Argc, ...) {
1963  ArgTy Args;
1964  va_list vl;
1965  va_start(vl, Argc);
1966
1967  for (int i = 0; i < Argc; i++) {
1968    const char *ArgType = va_arg(vl, const char*);
1969    const char *ArgName = va_arg(vl, const char*);
1970
1971    Args.push_back(std::make_pair(ArgType, ArgName));
1972  }
1973  va_end(vl);
1974
1975  startFunction(AM, IsStatic, ReturnType, FunctionName, Args);
1976
1977  return;
1978}
1979
1980void RSReflection::Context::startFunction(AccessModifier AM,
1981                                          bool IsStatic,
1982                                          const char *ReturnType,
1983                                          const std::string &FunctionName,
1984                                          const ArgTy &Args) {
1985  indent() << AccessModifierStr(AM) << ((IsStatic) ? " static " : " ")
1986           << ((ReturnType) ? ReturnType : "") << " " << FunctionName << "(";
1987
1988  bool FirstArg = true;
1989  for (ArgTy::const_iterator I = Args.begin(), E = Args.end();
1990       I != E;
1991       I++) {
1992    if (!FirstArg)
1993      out() << ", ";
1994    else
1995      FirstArg = false;
1996
1997    out() << I->first << " " << I->second;
1998  }
1999
2000  out() << ")";
2001  startBlock();
2002
2003  return;
2004}
2005
2006void RSReflection::Context::endFunction() {
2007  endBlock();
2008  return;
2009}
2010
2011}  // namespace slang
2012