slang_rs_reflection.cpp revision 139949bc10689a1a91980840fa743a3b07668e69 
1#include "slang_rs_context.hpp"
2#include "slang_rs_export_var.hpp"
3#include "slang_rs_reflection.hpp"
4#include "slang_rs_export_func.hpp"
5
6#include <ctype.h>
7
8#include <utility>
9#include <cstdarg>
10
11#include <sys/stat.h>
12
13using std::make_pair;
14using std::endl;
15
16
17#define RS_SCRIPT_CLASS_NAME_PREFIX         "ScriptC_"
18#define RS_SCRIPT_CLASS_SUPER_CLASS_NAME    "ScriptC"
19
20#define RS_TYPE_CLASS_NAME_PREFIX           "ScriptField_"
21#define RS_TYPE_CLASS_SUPER_CLASS_NAME      "android.renderscript.Script.FieldBase"
22
23#define RS_TYPE_ITEM_CLASS_NAME             "Item"
24
25#define RS_TYPE_ITEM_BUFFER_NAME            "mItemArray"
26#define RS_TYPE_ITEM_BUFFER_PACKER_NAME     "mIOBuffer"
27
28#define RS_EXPORT_VAR_INDEX_PREFIX          "mExportVarIdx_"
29#define RS_EXPORT_VAR_PREFIX                "mExportVar_"
30
31#define RS_EXPORT_FUNC_INDEX_PREFIX         "mExportFuncIdx_"
32
33#define RS_EXPORT_VAR_ALLOCATION_PREFIX     "mAlloction_"
34#define RS_EXPORT_VAR_DATA_STORAGE_PREFIX   "mData_"
35
36namespace slang {
37
38/* Some utility function using internal in RSReflection */
39static bool GetFileNameWithoutExtension(const std::string& FileName, std::string& OutFileName) {
40    OutFileName.clear();
41
42    if(FileName.empty() || (FileName == "-"))
43        return true;
44
45    /* find last component in given path */
46    size_t SlashPos = FileName.find_last_of("/\\");
47
48    if((SlashPos != std::string::npos) && ((SlashPos + 1) < FileName.length()))
49        OutFileName = FileName.substr(SlashPos + 1);
50    else
51        OutFileName = FileName;
52
53    size_t DotPos = OutFileName.find_first_of('.');
54    if(DotPos != std::string::npos)
55        OutFileName.erase(DotPos);
56
57    return true;
58}
59
60static const char* GetPrimitiveTypeName(const RSExportPrimitiveType* EPT) {
61    static const char* PrimitiveTypeJavaNameMap[] = {
62        "",
63        "",
64        "float",    /* RSExportPrimitiveType::DataTypeFloat32 */
65        "double",   /* RSExportPrimitiveType::DataTypeFloat64 */
66        "byte",     /* RSExportPrimitiveType::DataTypeSigned8 */
67        "short",    /* RSExportPrimitiveType::DataTypeSigned16 */
68        "int",      /* RSExportPrimitiveType::DataTypeSigned32 */
69        "long",     /* RSExportPrimitiveType::DataTypeSigned64 */
70        "short",    /* RSExportPrimitiveType::DataTypeUnsigned8 */
71        "int",      /* RSExportPrimitiveType::DataTypeUnsigned16 */
72        "long",     /* RSExportPrimitiveType::DataTypeUnsigned32 */
73        "long",     /* RSExportPrimitiveType::DataTypeUnsigned64 */
74
75        "int",      /* RSExportPrimitiveType::DataTypeUnsigned565 */
76        "int",      /* RSExportPrimitiveType::DataTypeUnsigned5551 */
77        "int",      /* RSExportPrimitiveType::DataTypeUnsigned4444 */
78
79        "boolean",  /* RSExportPrimitiveType::DataTypeBool */
80
81        "Element",  /* RSExportPrimitiveType::DataTypeRSElement */
82        "Type",     /* RSExportPrimitiveType::DataTypeRSType */
83        "Allocation",   /* RSExportPrimitiveType::DataTypeRSAllocation */
84        "Sampler",  /* RSExportPrimitiveType::DataTypeRSSampler */
85        "Script",   /* RSExportPrimitiveType::DataTypeRSScript */
86        "Mesh",       /* RSExportPrimitiveType::DataTypeRSMesh */
87        "ProgramFragment",  /* RSExportPrimitiveType::DataTypeRSProgramFragment */
88        "ProgramVertex",    /* RSExportPrimitiveType::DataTypeRSProgramVertex */
89        "ProgramRaster",    /* RSExportPrimitiveType::DataTypeRSProgramRaster */
90        "ProgramStore",     /* RSExportPrimitiveType::DataTypeRSProgramStore */
91        "Font",     /* RSExportPrimitiveType::DataTypeRSFont */
92    };
93
94    if((EPT->getType() >= 0) && (EPT->getType() < (sizeof(PrimitiveTypeJavaNameMap) / sizeof(const char*)))) {
95        // printf("Type %d\n", EPT->getType());
96        return PrimitiveTypeJavaNameMap[ EPT->getType() ];
97    }
98
99    assert(false && "GetPrimitiveTypeName : Unknown primitive data type");
100    return NULL;
101}
102
103static const char* GetVectorTypeName(const RSExportVectorType* EVT) {
104    static const char* VectorTypeJavaNameMap[][3] = {
105        /* 0 */ { "Byte2",  "Byte3",    "Byte4" },
106        /* 1 */ { "Short2", "Short3",   "Short4" },
107        /* 2 */ { "Int2",   "Int3",     "Int4" },
108        /* 3 */ { "Long2",  "Long3",    "Long4" },
109        /* 4 */ { "Float2", "Float3",   "Float4" },
110    };
111
112    const char** BaseElement;
113
114    switch(EVT->getType()) {
115        case RSExportPrimitiveType::DataTypeSigned8:
116            BaseElement = VectorTypeJavaNameMap[0];
117        break;
118
119        case RSExportPrimitiveType::DataTypeSigned16:
120        case RSExportPrimitiveType::DataTypeUnsigned8:
121            BaseElement = VectorTypeJavaNameMap[1];
122        break;
123
124        case RSExportPrimitiveType::DataTypeSigned32:
125        case RSExportPrimitiveType::DataTypeUnsigned16:
126            BaseElement = VectorTypeJavaNameMap[2];
127        break;
128
129        case RSExportPrimitiveType::DataTypeUnsigned32:
130            BaseElement = VectorTypeJavaNameMap[3];
131        break;
132
133        case RSExportPrimitiveType::DataTypeFloat32:
134            BaseElement = VectorTypeJavaNameMap[4];
135        break;
136
137        case RSExportPrimitiveType::DataTypeBool:
138            BaseElement = VectorTypeJavaNameMap[0];
139        break;
140
141        default:
142            assert(false && "RSReflection::genElementTypeName : Unsupported vector element data type");
143        break;
144    }
145
146    assert((EVT->getNumElement() > 1) && (EVT->getNumElement() <= 4) && "Number of element in vector type is invalid");
147
148    return BaseElement[EVT->getNumElement() - 2];
149}
150
151static const char* GetVectorAccessor(int Index) {
152    static const char* VectorAccessorMap[] = {
153        /* 0 */ "x",
154        /* 1 */ "y",
155        /* 2 */ "z",
156        /* 3 */ "w",
157    };
158
159    assert((Index >= 0) && (Index < (sizeof(VectorAccessorMap) / sizeof(const char*))) && "Out-of-bound index to access vector member");
160
161    return VectorAccessorMap[Index];
162}
163
164static const char* GetPackerAPIName(const RSExportPrimitiveType* EPT) {
165    static const char* PrimitiveTypePackerAPINameMap[] = {
166        "",
167        "",
168        "addF32",   /* RSExportPrimitiveType::DataTypeFloat32 */
169        "addF64",   /* RSExportPrimitiveType::DataTypeFloat64 */
170        "addI8",    /* RSExportPrimitiveType::DataTypeSigned8 */
171        "addI16",   /* RSExportPrimitiveType::DataTypeSigned16 */
172        "addI32",   /* RSExportPrimitiveType::DataTypeSigned32 */
173        "addI64",   /* RSExportPrimitiveType::DataTypeSigned64 */
174        "addU8",    /* RSExportPrimitiveType::DataTypeUnsigned8 */
175        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned16 */
176        "addU32",   /* RSExportPrimitiveType::DataTypeUnsigned32 */
177        "addU64",   /* RSExportPrimitiveType::DataTypeUnsigned64 */
178
179        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned565 */
180        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned5551 */
181        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned4444 */
182
183        "addBoolean",  /* RSExportPrimitiveType::DataTypeBool */
184
185        "addObj",   /* RSExportPrimitiveType::DataTypeRSElement */
186        "addObj",   /* RSExportPrimitiveType::DataTypeRSType */
187        "addObj",   /* RSExportPrimitiveType::DataTypeRSAllocation */
188        "addObj",   /* RSExportPrimitiveType::DataTypeRSSampler */
189        "addObj",   /* RSExportPrimitiveType::DataTypeRSScript */
190        "addObj",   /* RSExportPrimitiveType::DataTypeRSMesh */
191        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramFragment */
192        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramVertex */
193        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramRaster */
194        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramStore */
195        "addObj",   /* RSExportPrimitiveType::DataTypeRSFont */
196    };
197
198    if((EPT->getType() >= 0) && (EPT->getType() < (sizeof(PrimitiveTypePackerAPINameMap) / sizeof(const char*))))
199        return PrimitiveTypePackerAPINameMap[ EPT->getType() ];
200
201    assert(false && "GetPackerAPIName : Unknown primitive data type");
202    return NULL;
203}
204
205static std::string GetTypeName(const RSExportType* ET) {
206    switch(ET->getClass()) {
207        case RSExportType::ExportClassPrimitive:
208            return GetPrimitiveTypeName(static_cast<const RSExportPrimitiveType*>(ET));
209        break;
210
211        case RSExportType::ExportClassPointer:
212        {
213            const RSExportType* PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
214
215            if(PointeeType->getClass() != RSExportType::ExportClassRecord)
216                return "Allocation";
217            else
218                return RS_TYPE_CLASS_NAME_PREFIX + PointeeType->getName();
219        }
220        break;
221
222        case RSExportType::ExportClassVector:
223            return GetVectorTypeName(static_cast<const RSExportVectorType*>(ET));
224        break;
225
226        case RSExportType::ExportClassRecord:
227            return RS_TYPE_CLASS_NAME_PREFIX + ET->getName() + "."RS_TYPE_ITEM_CLASS_NAME;
228        break;
229
230        default:
231            assert(false && "Unknown class of type");
232        break;
233    }
234
235    return "";
236}
237
238static const char* GetBuiltinElementConstruct(const RSExportType* ET) {
239    if(ET->getClass() == RSExportType::ExportClassPrimitive) {
240        const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(ET);
241        if(EPT->getKind() == RSExportPrimitiveType::DataKindUser) {
242            static const char* PrimitiveBuiltinElementConstructMap[] = {
243                NULL,
244                NULL,
245                "F32", /* RSExportPrimitiveType::DataTypeFloat32 */
246                NULL,       /* RSExportPrimitiveType::DataTypeFloat64 */
247                "I8",  /* RSExportPrimitiveType::DataTypeSigned8 */
248                NULL,       /* RSExportPrimitiveType::DataTypeSigned16 */
249                "I32", /* RSExportPrimitiveType::DataTypeSigned32 */
250                NULL,       /* RSExportPrimitiveType::DataTypeSigned64 */
251                "U8",  /* RSExportPrimitiveType::DataTypeUnsigned8 */
252                NULL,       /* RSExportPrimitiveType::DataTypeUnsigned16 */
253                "U32", /* RSExportPrimitiveType::DataTypeUnsigned32 */
254                NULL,       /* RSExportPrimitiveType::DataTypeUnsigned64 */
255
256                NULL,   /* RSExportPrimitiveType::DataTypeUnsigned565 */
257                NULL,   /* RSExportPrimitiveType::DataTypeUnsigned5551 */
258                NULL,   /* RSExportPrimitiveType::DataTypeUnsigned4444 */
259
260                "BOOLEAN",  /* RSExportPrimitiveType::DataTypeBool */
261
262                "ELEMENT", /* RSExportPrimitiveType::DataTypeRSElement */
263                "TYPE",    /* RSExportPrimitiveType::DataTypeRSType */
264                "ALLOCATION",  /* RSExportPrimitiveType::DataTypeRSAllocation */
265                "SAMPLER",     /* RSExportPrimitiveType::DataTypeRSSampler */
266                "SCRIPT",      /* RSExportPrimitiveType::DataTypeRSScript */
267                "MESH",        /* RSExportPrimitiveType::DataTypeRSMesh */
268                "PROGRAM_FRAGMENT",    /* RSExportPrimitiveType::DataTypeRSProgramFragment */
269                "PROGRAM_VERTEX",      /* RSExportPrimitiveType::DataTypeRSProgramVertex */
270                "PROGRAM_RASTER",      /* RSExportPrimitiveType::DataTypeRSProgramRaster */
271                "PROGRAM_STORE",       /* RSExportPrimitiveType::DataTypeRSProgramStore */
272                "FONT",       /* RSExportPrimitiveType::DataTypeRSFont */
273            };
274
275            if((EPT->getType() >= 0) && (EPT->getType() < (sizeof(PrimitiveBuiltinElementConstructMap) / sizeof(const char*))))
276                return PrimitiveBuiltinElementConstructMap[ EPT->getType() ];
277        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindPixelA) {
278            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
279                return "A_8";
280        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindPixelRGB) {
281            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned565)
282                return "RGB_565";
283            else if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
284                return "RGB_888";
285        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindPixelRGBA) {
286            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned5551)
287                return "RGB_5551";
288            else if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned4444)
289                return "RGB_4444";
290            else if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
291                return "RGB_8888";
292        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindIndex) {
293            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned16)
294                return "INDEX_16";
295        }
296    } else if(ET->getClass() == RSExportType::ExportClassVector) {
297        const RSExportVectorType* EVT = static_cast<const RSExportVectorType*>(ET);
298        if(EVT->getKind() == RSExportPrimitiveType::DataKindPosition) {
299            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
300                if(EVT->getNumElement() == 2)
301                    return "ATTRIB_POSITION_2";
302                else if(EVT->getNumElement() == 3)
303                    return "ATTRIB_POSITION_3";
304            }
305        } else if(EVT->getKind() == RSExportPrimitiveType::DataKindTexture) {
306            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
307                if(EVT->getNumElement() == 2)
308                    return "ATTRIB_TEXTURE_2";
309            }
310        } else if(EVT->getKind() == RSExportPrimitiveType::DataKindNormal) {
311            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
312                if(EVT->getNumElement() == 3)
313                    return "ATTRIB_NORMAL_3";
314            }
315        } else if(EVT->getKind() == RSExportPrimitiveType::DataKindColor) {
316            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
317                if(EVT->getNumElement() == 4)
318                    return "ATTRIB_COLOR_F32_4";
319            } else if(EVT->getType() == RSExportPrimitiveType::DataTypeUnsigned8) {
320                if(EVT->getNumElement() == 4)
321                    return "ATTRIB_COLOR_U8_4";
322            }
323        }
324    } else if(ET->getClass() == RSExportType::ExportClassPointer) {
325        return "USER_I32";  /* tread pointer type variable as unsigned int (TODO: this is target dependent) */
326    }
327
328    return NULL;
329}
330
331static const char* GetElementDataKindName(RSExportPrimitiveType::DataKind DK) {
332    static const char* ElementDataKindNameMap[] = {
333        "Element.DataKind.USER",        /* RSExportPrimitiveType::DataKindUser */
334        "Element.DataKind.COLOR",       /* RSExportPrimitiveType::DataKindColor */
335        "Element.DataKind.POSITION",    /* RSExportPrimitiveType::DataKindPosition */
336        "Element.DataKind.TEXTURE",     /* RSExportPrimitiveType::DataKindTexture */
337        "Element.DataKind.NORMAL",      /* RSExportPrimitiveType::DataKindNormal */
338        "Element.DataKind.INDEX",       /* RSExportPrimitiveType::DataKindIndex */
339        "Element.DataKind.POINT_SIZE",  /* RSExportPrimitiveType::DataKindPointSize */
340        "Element.DataKind.PIXEL_L",     /* RSExportPrimitiveType::DataKindPixelL */
341        "Element.DataKind.PIXEL_A",     /* RSExportPrimitiveType::DataKindPixelA */
342        "Element.DataKind.PIXEL_LA",    /* RSExportPrimitiveType::DataKindPixelLA */
343        "Element.DataKind.PIXEL_RGB",   /* RSExportPrimitiveType::DataKindPixelRGB */
344        "Element.DataKind.PIXEL_RGBA",  /* RSExportPrimitiveType::DataKindPixelRGBA */
345    };
346
347    if((DK >= 0) && (DK < (sizeof(ElementDataKindNameMap) / sizeof(const char*))))
348        return ElementDataKindNameMap[ DK ];
349    else
350        return NULL;
351}
352
353static const char* GetElementDataTypeName(RSExportPrimitiveType::DataType DT) {
354    static const char* ElementDataTypeNameMap[] = {
355        NULL,
356        NULL,
357        "Element.DataType.FLOAT_32",    /* RSExportPrimitiveType::DataTypeFloat32 */
358        NULL,                           /* RSExportPrimitiveType::DataTypeFloat64 */
359        "Element.DataType.SIGNED_8",    /* RSExportPrimitiveType::DataTypeSigned8 */
360        "Element.DataType.SIGNED_16",   /* RSExportPrimitiveType::DataTypeSigned16 */
361        "Element.DataType.SIGNED_32",   /* RSExportPrimitiveType::DataTypeSigned32 */
362        NULL,                           /* RSExportPrimitiveType::DataTypeSigned64 */
363        "Element.DataType.UNSIGNED_8",  /* RSExportPrimitiveType::DataTypeUnsigned8 */
364        "Element.DataType.UNSIGNED_16", /* RSExportPrimitiveType::DataTypeUnsigned16 */
365        "Element.DataType.UNSIGNED_32", /* RSExportPrimitiveType::DataTypeUnsigned32 */
366        NULL,                           /* RSExportPrimitiveType::DataTypeUnsigned64 */
367
368        "Element.DataType.UNSIGNED_5_6_5",   /* RSExportPrimitiveType::DataTypeUnsigned565 */
369        "Element.DataType.UNSIGNED_5_5_5_1", /* RSExportPrimitiveType::DataTypeUnsigned5551 */
370        "Element.DataType.UNSIGNED_4_4_4_4", /* RSExportPrimitiveType::DataTypeUnsigned4444 */
371
372        "Element.DataType.BOOLEAN",     /* RSExportPrimitiveType::DataTypeBool */
373
374        "Element.DataType.RS_ELEMENT",  /* RSExportPrimitiveType::DataTypeRSElement */
375        "Element.DataType.RS_TYPE",     /* RSExportPrimitiveType::DataTypeRSType */
376        "Element.DataType.RS_ALLOCATION",   /* RSExportPrimitiveType::DataTypeRSAllocation */
377        "Element.DataType.RS_SAMPLER",      /* RSExportPrimitiveType::DataTypeRSSampler */
378        "Element.DataType.RS_SCRIPT",       /* RSExportPrimitiveType::DataTypeRSScript */
379        "Element.DataType.RS_MESH",         /* RSExportPrimitiveType::DataTypeRSMesh */
380        "Element.DataType.RS_PROGRAM_FRAGMENT", /* RSExportPrimitiveType::DataTypeRSProgramFragment */
381        "Element.DataType.RS_PROGRAM_VERTEX",   /* RSExportPrimitiveType::DataTypeRSProgramVertex */
382        "Element.DataType.RS_PROGRAM_RASTER",   /* RSExportPrimitiveType::DataTypeRSProgramRaster */
383        "Element.DataType.RS_PROGRAM_STORE",    /* RSExportPrimitiveType::DataTypeRSProgramStore */
384        "Element.DataType.RS_FONT",    /* RSExportPrimitiveType::DataTypeRSFont */
385    };
386
387    if((DT >= 0) && (DT < (sizeof(ElementDataTypeNameMap) / sizeof(const char*))))
388        return ElementDataTypeNameMap[ DT ];
389    else
390        return NULL;
391}
392
393static void _mkdir(const std::string &path) {
394    char buf[256];
395    char *tmp, *p = NULL;
396    size_t len = path.size();
397
398    if (len + 1 <= sizeof(buf))
399        tmp = buf;
400    else
401        tmp = new char [len + 1];
402
403    strcpy(tmp, path.c_str());
404
405    if (tmp[len - 1] == '/')
406        tmp[len - 1] = 0;
407
408    for (p = tmp + 1; *p; p++) {
409        if (*p == '/') {
410            *p = 0;
411            mkdir(tmp, S_IRWXU);
412            *p = '/';
413        }
414    }
415    mkdir(tmp, S_IRWXU);
416
417    if (tmp != buf)
418        delete[] tmp;
419}
420
421bool RSReflection::openScriptFile(Context&C, const std::string& ClassName, std::string& ErrorMsg) {
422    if(!C.mUseStdout) {
423        C.mOF.clear();
424        std::string _path = "/" + C.getPackageName();
425        for (std::string::iterator it = _path.begin(); it != _path.end(); it++ ) {
426            if ( *it == '.') {
427                *it = '/';
428            }
429        }
430
431        _path.insert(0, mRSContext->getReflectJavaPathName());
432
433        _mkdir(_path);
434        C.mOF.open(( _path + "/" + ClassName + ".java" ).c_str());
435        if(!C.mOF.good()) {
436            ErrorMsg = "failed to open file '" + _path + "/" + ClassName + ".java' for write";
437
438            return false;
439        }
440    }
441    return true;
442}
443
444/****************************** Methods to generate script class ******************************/
445bool RSReflection::genScriptClass(Context& C, const std::string& ClassName, std::string& ErrorMsg) {
446    /* Open the file */
447    if (!openScriptFile(C, ClassName, ErrorMsg)) {
448        return false;
449    }
450
451    if(!C.startClass(Context::AM_Public, false, ClassName, RS_SCRIPT_CLASS_SUPER_CLASS_NAME, ErrorMsg))
452        return false;
453
454    genScriptClassConstructor(C);
455
456    /* Reflect export variable */
457    for(RSContext::const_export_var_iterator I = mRSContext->export_vars_begin();
458        I != mRSContext->export_vars_end();
459        I++)
460        genExportVariable(C, *I);
461
462    /* Reflect export function */
463    for(RSContext::const_export_func_iterator I = mRSContext->export_funcs_begin();
464        I != mRSContext->export_funcs_end();
465        I++)
466        genExportFunction(C, *I);
467
468    C.endClass();
469
470    return true;
471}
472
473void RSReflection::genScriptClassConstructor(Context& C) {
474    C.indent() << "// Constructor" << endl;
475    C.startFunction(Context::AM_Public, false, NULL, C.getClassName(), 4, "RenderScript", "rs",
476                                                                          "Resources", "resources",
477                                                                          "int", "id",
478                                                                          "boolean", "isRoot");
479    /* Call constructor of super class */
480    C.indent() << "super(rs, resources, id, isRoot);" << endl;
481
482    /* If an exported variable has initial value, reflect it */
483
484    for(RSContext::const_export_var_iterator I = mRSContext->export_vars_begin();
485        I != mRSContext->export_vars_end();
486        I++)
487    {
488        const RSExportVar* EV = *I;
489        if(!EV->getInit().isUninit())
490            genInitExportVariable(C, EV->getType(), EV->getName(), EV->getInit());
491    }
492
493    C.endFunction();
494    return;
495}
496
497void RSReflection::genInitBoolExportVariable(Context& C, const std::string& VarName, const APValue& Val) {
498    assert(!Val.isUninit() && "Not a valid initializer");
499
500    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
501    assert((Val.getKind() == APValue::Int) && "Bool type has wrong initial APValue");
502
503    if (Val.getInt().getSExtValue() == 0) {
504        C.out() << "false";
505    } else {
506        C.out() << "true";
507    }
508    C.out() << ";" << endl;
509
510    return;
511}
512
513void RSReflection::genInitPrimitiveExportVariable(Context& C, const std::string& VarName, const APValue& Val) {
514    assert(!Val.isUninit() && "Not a valid initializer");
515
516    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
517    switch(Val.getKind()) {
518        case APValue::Int: C.out() << Val.getInt().getSExtValue(); break;
519        case APValue::Float: C.out() << Val.getFloat().convertToDouble(); break;
520
521        case APValue::ComplexInt:
522        case APValue::ComplexFloat:
523        case APValue::LValue:
524        case APValue::Vector:
525            assert(false && "Primitive type cannot have such kind of initializer");
526        break;
527
528        default:
529            assert(false && "Unknown kind of initializer");
530        break;
531    }
532    C.out() << ";" << endl;
533
534    return;
535}
536
537void RSReflection::genInitExportVariable(Context& C, const RSExportType* ET, const std::string& VarName, const APValue& Val) {
538    assert(!Val.isUninit() && "Not a valid initializer");
539
540    switch(ET->getClass()) {
541        case RSExportType::ExportClassPrimitive: {
542            const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(ET);
543            if (EPT->getType() == RSExportPrimitiveType::DataTypeBool) {
544                genInitBoolExportVariable(C, VarName, Val);
545            } else {
546                genInitPrimitiveExportVariable(C, VarName, Val);
547            }
548            break;
549        }
550
551        case RSExportType::ExportClassPointer:
552            if(!Val.isInt() || Val.getInt().getSExtValue() != 0)
553                std::cout << "Initializer which is non-NULL to pointer type variable will be ignored" << endl;
554        break;
555
556        case RSExportType::ExportClassVector:
557        {
558            const RSExportVectorType* EVT = static_cast<const RSExportVectorType*>(ET);
559            switch(Val.getKind()) {
560                case APValue::Int:
561                case APValue::Float:
562                    for(int i=0;i<EVT->getNumElement();i++) {
563                        std::string Name =  VarName + "." + GetVectorAccessor(i);
564                        genInitPrimitiveExportVariable(C, Name, Val);
565                    }
566                break;
567
568                case APValue::Vector:
569                {
570                    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = new " << GetVectorTypeName(EVT) << "();" << endl;
571
572                    unsigned NumElements = std::min(static_cast<unsigned>(EVT->getNumElement()), Val.getVectorLength());
573                    for(unsigned i=0;i<NumElements;i++) {
574                        const APValue& ElementVal = Val.getVectorElt(i);
575                        std::string Name =  VarName + "." + GetVectorAccessor(i);
576                        genInitPrimitiveExportVariable(C, Name, ElementVal);
577                    }
578                }
579                break;
580            }
581        }
582        break;
583
584        /* TODO: Resolving initializer of a record type variable is complex. It cannot obtain by just simply evaluating the initializer expression. */
585        case RSExportType::ExportClassRecord:
586        {
587            /*
588            unsigned InitIndex = 0;
589            const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
590
591            assert((Val.getKind() == APValue::Vector) && "Unexpected type of initializer for record type variable");
592
593            C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = new "RS_TYPE_CLASS_NAME_PREFIX << ERT->getName() <<  "."RS_TYPE_ITEM_CLASS_NAME"();" << endl;
594
595            for(RSExportRecordType::const_field_iterator I = ERT->fields_begin();
596                I != ERT->fields_end();
597                I++)
598            {
599                const RSExportRecordType::Field* F = *I;
600                std::string FieldName = VarName + "." + F->getName();
601
602                if(InitIndex > Val.getVectorLength())
603                    break;
604
605                genInitPrimitiveExportVariable(C, FieldName, Val.getVectorElt(InitIndex++));
606            }
607            */
608            assert(false && "Unsupported initializer for record type variable currently");
609        }
610        break;
611
612        default:
613            assert(false && "Unknown class of type");
614        break;
615    }
616    return;
617}
618
619void RSReflection::genExportVariable(Context& C, const RSExportVar* EV) {
620    const RSExportType* ET = EV->getType();
621
622    C.indent() << "private final static int "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << " = " << C.getNextExportVarSlot() << ";" << endl;
623
624    switch(ET->getClass()) {
625        case RSExportType::ExportClassPrimitive:
626            genPrimitiveTypeExportVariable(C, EV);
627        break;
628
629        case RSExportType::ExportClassPointer:
630            genPointerTypeExportVariable(C, EV);
631        break;
632
633        case RSExportType::ExportClassVector:
634            genVectorTypeExportVariable(C, EV);
635        break;
636
637        case RSExportType::ExportClassRecord:
638            genRecordTypeExportVariable(C, EV);
639        break;
640
641        default:
642            assert(false && "Unknown class of type");
643        break;
644    }
645
646    return;
647}
648
649void RSReflection::genExportFunction(Context& C, const RSExportFunc* EF) {
650    C.indent() << "private final static int "RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << " = " << C.getNextExportFuncSlot() << ";" << endl;
651
652    /* invoke_*() */
653    Context::ArgTy Args;
654
655    for(RSExportFunc::const_param_iterator I = EF->params_begin();
656        I != EF->params_end();
657        I++)
658    {
659        const RSExportFunc::Parameter* P = *I;
660        Args.push_back( make_pair(GetTypeName(P->getType()), P->getName()) );
661    }
662
663    C.startFunction(Context::AM_Public, false, "void", "invoke_" + EF->getName(), Args);
664
665    if(!EF->hasParam()) {
666        C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ");" << endl;
667    } else {
668        const RSExportRecordType* ERT = EF->getParamPacketType();
669        std::string FieldPackerName = EF->getName() + "_fp";
670
671        if(genCreateFieldPacker(C, ERT, FieldPackerName.c_str()))
672            genPackVarOfType(C, ERT, NULL, FieldPackerName.c_str());
673
674        C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ", " << FieldPackerName << ");" << endl;
675    }
676
677    C.endFunction();
678    return;
679}
680
681void RSReflection::genPrimitiveTypeExportVariable(Context& C, const RSExportVar* EV) {
682    assert((EV->getType()->getClass() == RSExportType::ExportClassPrimitive) && "Variable should be type of primitive here");
683
684    const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(EV->getType());
685    const char* TypeName = GetPrimitiveTypeName(EPT);
686
687    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
688
689    /* set_*() */
690    if(!EV->isConst()) {
691        C.startFunction(Context::AM_Public, false, "void", "set_" + EV->getName(), 1, TypeName, "v");
692        C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
693
694        if(EPT->isRSObjectType())
695            C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", (v == null) ? 0 : v.getID());" << endl;
696        else
697            C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", v);" << endl;
698
699        C.endFunction();
700    }
701
702    genGetExportVariable(C, TypeName, EV->getName());
703
704    return;
705}
706
707void RSReflection::genPointerTypeExportVariable(Context& C, const RSExportVar* EV) {
708    const RSExportType* ET = EV->getType();
709    const RSExportType* PointeeType;
710    std::string TypeName;
711
712    assert((ET->getClass() == RSExportType::ExportClassPointer) && "Variable should be type of pointer here");
713
714    PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
715    TypeName = GetTypeName(ET);
716
717    /* bind_*() */
718    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
719
720    C.startFunction(Context::AM_Public, false, "void", "bind_" + EV->getName(), 1, TypeName.c_str(), "v");
721
722    C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
723    C.indent() << "if(v == null) bindAllocation(null, "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ");" << endl;
724
725    if(PointeeType->getClass() == RSExportType::ExportClassRecord)
726        C.indent() << "else bindAllocation(v.getAllocation(), "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ");" << endl;
727    else
728        C.indent() << "else bindAllocation(v, "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ");" << endl;
729
730    C.endFunction();
731
732    genGetExportVariable(C, TypeName, EV->getName());
733
734    return;
735}
736
737void RSReflection::genVectorTypeExportVariable(Context& C, const RSExportVar* EV) {
738    assert((EV->getType()->getClass() == RSExportType::ExportClassVector) && "Variable should be type of vector here");
739
740    const RSExportVectorType* EVT = static_cast<const RSExportVectorType*>(EV->getType());
741    const char* TypeName = GetVectorTypeName(EVT);
742    const char* FieldPackerName = "fp";
743
744    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
745
746    /* set_*() */
747    if(!EV->isConst()) {
748        C.startFunction(Context::AM_Public, false, "void", "set_" + EV->getName(), 1, TypeName, "v");
749        C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
750
751        if(genCreateFieldPacker(C, EVT, FieldPackerName))
752            genPackVarOfType(C, EVT, "v", FieldPackerName);
753        C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", " << FieldPackerName << ");" << endl;
754
755        C.endFunction();
756    }
757
758    genGetExportVariable(C, TypeName, EV->getName());
759    return;
760}
761
762void RSReflection::genRecordTypeExportVariable(Context& C, const RSExportVar* EV) {
763    assert((EV->getType()->getClass() == RSExportType::ExportClassRecord) && "Variable should be type of struct here");
764
765    const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(EV->getType());
766    std::string TypeName = RS_TYPE_CLASS_NAME_PREFIX + ERT->getName() + "."RS_TYPE_ITEM_CLASS_NAME;
767    const char* FieldPackerName = "fp";
768
769    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
770
771    /* set_*() */
772    if(!EV->isConst()) {
773        C.startFunction(Context::AM_Public, false, "void", "set_" + EV->getName(), 1, TypeName.c_str(), "v");
774        C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
775
776        if(genCreateFieldPacker(C, ERT, FieldPackerName))
777            genPackVarOfType(C, ERT, "v", FieldPackerName);
778        C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", " << FieldPackerName << ");" << endl;
779
780        C.endFunction();
781    }
782
783    genGetExportVariable(C, TypeName.c_str(), EV->getName());
784    return;
785}
786
787void RSReflection::genGetExportVariable(Context& C, const std::string& TypeName, const std::string& VarName) {
788    C.startFunction(Context::AM_Public, false, TypeName.c_str(), "get_" + VarName, 0);
789
790    C.indent() << "return "RS_EXPORT_VAR_PREFIX << VarName << ";" << endl;
791
792    C.endFunction();
793    return;
794}
795
796/****************************** Methods to generate script class /end ******************************/
797
798bool RSReflection::genCreateFieldPacker(Context& C, const RSExportType* ET, const char* FieldPackerName) {
799    size_t AllocSize = RSExportType::GetTypeAllocSize(ET);
800    if(AllocSize > 0)
801        C.indent() << "FieldPacker " << FieldPackerName << " = new FieldPacker(" << AllocSize << ");" << endl;
802    else
803        return false;
804    return true;
805}
806
807void RSReflection::genPackVarOfType(Context& C, const RSExportType* ET, const char* VarName, const char* FieldPackerName) {
808    switch(ET->getClass()) {
809        case RSExportType::ExportClassPrimitive:
810        case RSExportType::ExportClassVector:
811            C.indent() << FieldPackerName << "." << GetPackerAPIName(static_cast<const RSExportPrimitiveType*>(ET)) << "(" << VarName << ");" << endl;
812        break;
813
814        case RSExportType::ExportClassPointer:
815        {
816            /* Must reflect as type Allocation in Java */
817            const RSExportType* PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
818
819            if(PointeeType->getClass() != RSExportType::ExportClassRecord)
820                C.indent() << FieldPackerName << ".addI32(" << VarName << ".getPtr());" << endl;
821            else
822                C.indent() << FieldPackerName << ".addI32(" << VarName << ".getAllocation().getPtr());" << endl;
823        }
824        break;
825
826        case RSExportType::ExportClassRecord:
827        {
828            const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
829            int Pos = 0;    /* relative pos from now on in field packer */
830
831            for(RSExportRecordType::const_field_iterator I = ERT->fields_begin();
832                I != ERT->fields_end();
833                I++)
834            {
835                const RSExportRecordType::Field* F = *I;
836                std::string FieldName;
837                size_t FieldOffset = F->getOffsetInParent();
838                size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
839                size_t FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
840
841                if(VarName != NULL)
842                    FieldName = VarName + ("." + F->getName());
843                else
844                    FieldName = F->getName();
845
846                if(FieldOffset > Pos)
847                    C.indent() << FieldPackerName << ".skip(" << (FieldOffset - Pos) << ");" << endl;
848
849                genPackVarOfType(C, F->getType(), FieldName.c_str(), FieldPackerName);
850
851                if(FieldAllocSize > FieldStoreSize)  /* there's padding in the field type */
852                    C.indent() << FieldPackerName << ".skip(" << (FieldAllocSize - FieldStoreSize) << ");" << endl;
853
854                Pos = FieldOffset + FieldAllocSize;
855            }
856
857            /* There maybe some padding after the struct */
858            size_t Padding = RSExportType::GetTypeAllocSize(ERT) - Pos;
859            if(Padding > 0)
860                C.indent() << FieldPackerName << ".skip(" << Padding << ");" << endl;
861        }
862        break;
863
864        default:
865            assert(false && "Unknown class of type");
866        break;
867    }
868
869    return;
870}
871
872/****************************** Methods to generate type class  ******************************/
873bool RSReflection::genTypeClass(Context& C, const RSExportRecordType* ERT, std::string& ErrorMsg) {
874    std::string ClassName = RS_TYPE_CLASS_NAME_PREFIX + ERT->getName();
875
876    /* Open the file */
877    if (!openScriptFile(C, ClassName, ErrorMsg)) {
878        return false;
879    }
880
881    if(!C.startClass(Context::AM_Public, false, ClassName, RS_TYPE_CLASS_SUPER_CLASS_NAME, ErrorMsg))
882        return false;
883
884    if(!genTypeItemClass(C, ERT, ErrorMsg))
885        return false;
886
887    /* Declare item buffer and item buffer packer */
888    C.indent() << "private "RS_TYPE_ITEM_CLASS_NAME" "RS_TYPE_ITEM_BUFFER_NAME"[];" << endl;
889    C.indent() << "private FieldPacker "RS_TYPE_ITEM_BUFFER_PACKER_NAME";" << endl;
890
891    genTypeClassConstructor(C, ERT);
892    genTypeClassCopyToArray(C, ERT);
893    genTypeClasSet(C, ERT);
894    genTypeClasCopyAll(C, ERT);
895
896    C.endClass();
897
898    return true;
899}
900
901bool RSReflection::genTypeItemClass(Context& C, const RSExportRecordType* ERT, std::string& ErrorMsg) {
902    C.indent() << "static public class "RS_TYPE_ITEM_CLASS_NAME;
903    C.startBlock();
904
905    C.indent() << "public static final int sizeof = " << RSExportType::GetTypeAllocSize(ERT) << ";" << endl;
906
907    /* Member elements */
908    C.out() << endl;
909    for(RSExportRecordType::const_field_iterator FI = ERT->fields_begin();
910        FI != ERT->fields_end();
911        FI++)
912        C.indent() << GetTypeName((*FI)->getType()) << " " << (*FI)->getName() << ";" << endl;
913
914    /* Constructor */
915    C.out() << endl;
916    C.indent() << RS_TYPE_ITEM_CLASS_NAME"()";
917    C.startBlock();
918
919    for(RSExportRecordType::const_field_iterator FI = ERT->fields_begin();
920        FI != ERT->fields_end();
921        FI++)
922    {
923        const RSExportRecordType::Field* F = *FI;
924        if((F->getType()->getClass() == RSExportType::ExportClassVector) || (F->getType()->getClass() == RSExportType::ExportClassRecord))
925        C.indent() << F->getName() << " = new " << GetTypeName(F->getType()) << "();" << endl;
926    }
927
928    C.endBlock();   /* end Constructor */
929
930    C.endBlock();   /* end Item class */
931
932
933    return true;
934}
935
936void RSReflection::genTypeClassConstructor(Context& C, const RSExportRecordType* ERT) {
937    const char* RenderScriptVar = "rs";
938
939    C.startFunction(Context::AM_Public, true, "Element", "createElement", 1, "RenderScript", RenderScriptVar);
940    genBuildElement(C, ERT, RenderScriptVar);
941    C.endFunction();
942
943    C.startFunction(Context::AM_Public, false, NULL, C.getClassName(), 2, "RenderScript", RenderScriptVar,
944                                                                          "int", "count");
945
946    C.indent() << RS_TYPE_ITEM_BUFFER_NAME" = null;" << endl;
947    C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME" = null;" << endl;
948    C.indent() << "mElement = createElement(" << RenderScriptVar << ");" << endl;
949    /* Call init() in super class */
950    C.indent() << "init(" << RenderScriptVar << ", count);" << endl;
951    C.endFunction();
952
953    return;
954}
955
956void RSReflection::genTypeClassCopyToArray(Context& C, const RSExportRecordType* ERT) {
957    C.startFunction(Context::AM_Private, false, "void", "copyToArray", 2, RS_TYPE_ITEM_CLASS_NAME, "i",
958                                                                          "int", "index");
959
960    C.indent() << "if ("RS_TYPE_ITEM_BUFFER_PACKER_NAME" == null) "RS_TYPE_ITEM_BUFFER_PACKER_NAME" = new FieldPacker("RS_TYPE_ITEM_CLASS_NAME".sizeof * mType.getX() /* count */);" << endl;
961    C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof);" << endl;
962
963    genPackVarOfType(C, ERT, "i", RS_TYPE_ITEM_BUFFER_PACKER_NAME);
964
965    C.endFunction();
966    return;
967}
968
969void RSReflection::genTypeClasSet(Context& C, const RSExportRecordType* ERT) {
970    C.startFunction(Context::AM_Public, false, "void", "set", 3, RS_TYPE_ITEM_CLASS_NAME, "i",
971                                                                 "int", "index",
972                                                                 "boolean", "copyNow");
973    C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME" == null) "RS_TYPE_ITEM_BUFFER_NAME" = new "RS_TYPE_ITEM_CLASS_NAME"[mType.getX() /* count */];" << endl;
974    C.indent() << RS_TYPE_ITEM_BUFFER_NAME"[index] = i;" << endl;
975
976    C.indent() << "if (copyNow) ";
977    C.startBlock();
978
979    C.indent() << "copyToArray(i, index);" << endl;
980    //C.indent() << "mAllocation.subData1D(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof, "RS_TYPE_ITEM_CLASS_NAME".sizeof, "RS_TYPE_ITEM_BUFFER_PACKER_NAME".getData());" << endl;
981    C.indent() << "mAllocation.subData1D(index, 1, "RS_TYPE_ITEM_BUFFER_PACKER_NAME".getData());" << endl;
982
983    C.endBlock();   /* end if (copyNow) */
984
985    C.endFunction();
986    return;
987}
988
989void RSReflection::genTypeClasCopyAll(Context& C, const RSExportRecordType* ERT) {
990    C.startFunction(Context::AM_Public, false, "void", "copyAll", 0);
991
992    C.indent() << "for (int ct=0; ct < "RS_TYPE_ITEM_BUFFER_NAME".length; ct++) copyToArray("RS_TYPE_ITEM_BUFFER_NAME"[ct], ct);" << endl;
993    C.indent() << "mAllocation.data("RS_TYPE_ITEM_BUFFER_PACKER_NAME".getData());" << endl;
994
995    C.endFunction();
996    return;
997}
998
999/****************************** Methods to generate type class /end ******************************/
1000
1001/******************** Methods to create Element in Java of given record type ********************/
1002void RSReflection::genBuildElement(Context& C, const RSExportRecordType* ERT, const char* RenderScriptVar) {
1003    const char* ElementBuilderName = "eb";
1004
1005    /* Create element builder */
1006    //    C.startBlock(true);
1007
1008    C.indent() << "Element.Builder " << ElementBuilderName << " = new Element.Builder(" << RenderScriptVar << ");" << endl;
1009
1010    /* eb.add(...) */
1011    genAddElementToElementBuilder(C, ERT, "", ElementBuilderName, RenderScriptVar);
1012
1013    C.indent() << "return " << ElementBuilderName << ".create();" << endl;
1014
1015    //   C.endBlock();
1016    return;
1017}
1018
1019#define EB_ADD(x, ...)  \
1020    C.indent() << ElementBuilderName << ".add(Element." << x ##__VA_ARGS__ ", \"" << VarName << "\");" << endl
1021
1022void RSReflection::genAddElementToElementBuilder(Context& C, const RSExportType* ET, const std::string& VarName, const char* ElementBuilderName, const char* RenderScriptVar) {
1023    const char* ElementConstruct = GetBuiltinElementConstruct(ET);
1024
1025    if(ElementConstruct != NULL) {
1026      EB_ADD(ElementConstruct << "(" << RenderScriptVar << ")");
1027    } else {
1028      if((ET->getClass() == RSExportType::ExportClassPrimitive) || (ET->getClass() == RSExportType::ExportClassVector)) {
1029        const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(ET);
1030        const char* DataKindName = GetElementDataKindName(EPT->getKind());
1031        const char* DataTypeName = GetElementDataTypeName(EPT->getType());
1032        int Size = (ET->getClass() == RSExportType::ExportClassVector) ? static_cast<const RSExportVectorType*>(ET)->getNumElement() : 1;
1033
1034        switch(EPT->getKind()) {
1035          case RSExportPrimitiveType::DataKindColor:
1036          case RSExportPrimitiveType::DataKindPosition:
1037          case RSExportPrimitiveType::DataKindTexture:
1038          case RSExportPrimitiveType::DataKindNormal:
1039          case RSExportPrimitiveType::DataKindPointSize:
1040            /* Element.createAttrib() */
1041            EB_ADD("createAttrib(" << RenderScriptVar << ", " << DataTypeName << ", " << DataKindName << ", " << Size << ")");
1042            break;
1043
1044          case RSExportPrimitiveType::DataKindIndex:
1045            /* Element.createIndex() */
1046            EB_ADD("createAttrib(" << RenderScriptVar << ")");
1047            break;
1048
1049          case RSExportPrimitiveType::DataKindPixelL:
1050          case RSExportPrimitiveType::DataKindPixelA:
1051          case RSExportPrimitiveType::DataKindPixelLA:
1052          case RSExportPrimitiveType::DataKindPixelRGB:
1053          case RSExportPrimitiveType::DataKindPixelRGBA:
1054            /* Element.createPixel() */
1055            EB_ADD("createVector(" << RenderScriptVar << ", " << DataTypeName << ", " << DataKindName << ")");
1056            break;
1057
1058          case RSExportPrimitiveType::DataKindUser:
1059          default:
1060            if(EPT->getClass() == RSExportType::ExportClassPrimitive)
1061              /* Element.createUser() */
1062              EB_ADD("createUser(" << RenderScriptVar << ", " << DataTypeName << ")");
1063            else /* (ET->getClass() == RSExportType::ExportClassVector) must hold here */
1064              /* Element.createVector() */
1065              EB_ADD("createVector(" << RenderScriptVar << ", " << DataTypeName << ", " << Size << ")");
1066            break;
1067        }
1068      } else if(ET->getClass() == RSExportType::ExportClassPointer) {
1069        /* Pointer type variable should be resolved in GetBuiltinElementConstruct()  */
1070        assert(false && "??");
1071      } else if(ET->getClass() == RSExportType::ExportClassRecord) {
1072        /*
1073         * Simalar to genPackVarOfType.
1074         *
1075         * TODO: Generalize these two function such that there's no duplicated codes.
1076         */
1077        const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
1078        int Pos = 0;    /* relative pos from now on */
1079
1080        for(RSExportRecordType::const_field_iterator I = ERT->fields_begin();
1081            I != ERT->fields_end();
1082            I++)
1083        {
1084          const RSExportRecordType::Field* F = *I;
1085          std::string FieldName;
1086          size_t FieldOffset = F->getOffsetInParent();
1087          size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1088          size_t FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
1089
1090          if(!VarName.empty())
1091            FieldName = VarName + "." + F->getName();
1092          else
1093            FieldName = F->getName();
1094
1095          /* alignment */
1096          genAddPaddingToElementBuiler(C, (FieldOffset - Pos), ElementBuilderName, RenderScriptVar);
1097
1098          /* eb.add(...) */
1099          genAddElementToElementBuilder(C, (*I)->getType(), FieldName, ElementBuilderName, RenderScriptVar);
1100
1101          /* there's padding within the field type */
1102          genAddPaddingToElementBuiler(C, (FieldAllocSize - FieldStoreSize), ElementBuilderName, RenderScriptVar);
1103
1104          Pos = FieldOffset + FieldAllocSize;
1105        }
1106
1107        /* There maybe some padding after the struct */
1108        genAddPaddingToElementBuiler(C, (RSExportType::GetTypeAllocSize(ERT) - Pos), ElementBuilderName, RenderScriptVar);
1109      } else {
1110        assert(false && "Unknown class of type");
1111      }
1112    }
1113}
1114
1115void RSReflection::genAddPaddingToElementBuiler(Context& C, size_t PaddingSize, const char* ElementBuilderName, const char* RenderScriptVar) {
1116    while(PaddingSize > 0) {
1117        const std::string& VarName = C.createPaddingField();
1118        if(PaddingSize >= 4) {
1119          EB_ADD("U32(" << RenderScriptVar << ")");
1120          PaddingSize -= 4;
1121        } else if(PaddingSize >= 2) {
1122            EB_ADD("U16(" << RenderScriptVar << ")");
1123            PaddingSize -= 2;
1124        } else if(PaddingSize >= 1) {
1125            EB_ADD("U8(" << RenderScriptVar << ")");
1126            PaddingSize -= 1;
1127        }
1128    }
1129    return;
1130}
1131
1132#undef EB_ADD
1133/******************** Methods to create Element in Java of given record type /end ********************/
1134
1135bool RSReflection::reflect(const char* OutputPackageName, const std::string& InputFileName, const std::string& OutputBCFileName) {
1136    Context *C = NULL;
1137    std::string ResourceId = "";
1138
1139    if(!GetFileNameWithoutExtension(OutputBCFileName, ResourceId))
1140        return false;
1141
1142    if(ResourceId.empty())
1143        ResourceId = "<Resource ID>";
1144
1145    if((OutputPackageName == NULL) || (*OutputPackageName == '\0') || strcmp(OutputPackageName, "-") == 0)
1146        C = new Context("<Package Name>", ResourceId, true);
1147    else
1148        C = new Context(OutputPackageName, ResourceId, false);
1149
1150    if(C != NULL) {
1151        std::string ErrorMsg, ScriptClassName;
1152        /* class ScriptC_<ScriptName> */
1153        if(!GetFileNameWithoutExtension(InputFileName, ScriptClassName))
1154            return false;
1155
1156        if(ScriptClassName.empty())
1157            ScriptClassName = "<Input Script Name>";
1158
1159        ScriptClassName.at(0) = toupper(ScriptClassName.at(0));
1160        ScriptClassName.insert(0, RS_SCRIPT_CLASS_NAME_PREFIX);
1161
1162        if (mRSContext->getLicenseNote() != NULL)
1163            C->setLicenseNote(*mRSContext->getLicenseNote());
1164
1165        if(!genScriptClass(*C, ScriptClassName, ErrorMsg)) {
1166            std::cerr << "Failed to generate class " << ScriptClassName << " (" << ErrorMsg << ")" << endl;
1167            return false;
1168        }
1169
1170        /* class ScriptField_<TypeName> */
1171        for(RSContext::const_export_type_iterator TI = mRSContext->export_types_begin();
1172            TI != mRSContext->export_types_end();
1173            TI++)
1174        {
1175            const RSExportType* ET = TI->getValue();
1176
1177            if(ET->getClass() == RSExportType::ExportClassRecord) {
1178                const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
1179
1180                if(!ERT->isArtificial() && !genTypeClass(*C, ERT, ErrorMsg)) {
1181                    std::cerr << "Failed to generate type class for struct '" << ERT->getName() << "' (" << ErrorMsg << ")" << endl;
1182                    return false;
1183                }
1184            }
1185        }
1186    }
1187
1188    return true;
1189}
1190
1191/****************************** RSReflection::Context ******************************/
1192const char* const RSReflection::Context::ApacheLicenseNote =
1193    "/*\n"
1194	" * Copyright (C) 2010 The Android Open Source Project\n"
1195	" *\n"
1196	" * Licensed under the Apache License, Version 2.0 (the \"License\");\n"
1197	" * you may not use this file except in compliance with the License.\n"
1198	" * You may obtain a copy of the License at\n"
1199	" *\n"
1200	" *      http://www.apache.org/licenses/LICENSE-2.0\n"
1201	" *\n"
1202	" * Unless required by applicable law or agreed to in writing, software\n"
1203	" * distributed under the License is distributed on an \"AS IS\" BASIS,\n"
1204	" * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n"
1205	" * See the License for the specific language governing permissions and\n"
1206	" * limitations under the License.\n"
1207	" */\n"
1208	"\n";
1209
1210const char* const RSReflection::Context::Import[] = {
1211    /* RenderScript java class */
1212    "android.renderscript.*",
1213    /* Import R */
1214    "android.content.res.Resources",
1215    /* Import for debugging */
1216    "android.util.Log",
1217};
1218
1219const char* RSReflection::Context::AccessModifierStr(AccessModifier AM) {
1220    switch(AM) {
1221        case AM_Public: return "public"; break;
1222        case AM_Protected: return "protected"; break;
1223        case AM_Private: return "private"; break;
1224        default: return ""; break;
1225    }
1226}
1227
1228bool RSReflection::Context::startClass(AccessModifier AM, bool IsStatic, const std::string& ClassName, const char* SuperClassName, std::string& ErrorMsg) {
1229    if(mVerbose)
1230        std::cout << "Generating " << ClassName << ".java ..." << endl;
1231
1232    /* License */
1233    out() << mLicenseNote;
1234
1235    /* Package */
1236    if(!mPackageName.empty())
1237        out() << "package " << mPackageName << ";" << endl;
1238    out() << endl;
1239
1240    /* Imports */
1241    for(int i=0;i<(sizeof(Import)/sizeof(const char*));i++)
1242        out() << "import " << Import[i] << ";" << endl;
1243    out() << endl;
1244
1245    out() << AccessModifierStr(AM) << ((IsStatic) ? " static" : "") << " class " << ClassName;
1246    if(SuperClassName != NULL)
1247        out() << " extends " << SuperClassName;
1248
1249    startBlock();
1250
1251    mClassName = ClassName;
1252
1253    return true;
1254}
1255
1256void RSReflection::Context::endClass() {
1257    endBlock();
1258    if(!mUseStdout)
1259        mOF.close();
1260    clear();
1261    return;
1262}
1263
1264void RSReflection::Context::startBlock(bool ShouldIndent) {
1265    if(ShouldIndent)
1266        indent() << "{" << endl;
1267    else
1268        out() << " {" << endl;
1269    incIndentLevel();
1270    return;
1271}
1272
1273void RSReflection::Context::endBlock() {
1274    decIndentLevel();
1275    indent() << "}" << endl << endl;
1276    return;
1277}
1278
1279void RSReflection::Context::startTypeClass(const std::string& ClassName) {
1280    indent() << "public static class " << ClassName;
1281    startBlock();
1282    return;
1283}
1284
1285void RSReflection::Context::endTypeClass() {
1286    endBlock();
1287    return;
1288}
1289
1290void RSReflection::Context::startFunction(AccessModifier AM, bool IsStatic, const char* ReturnType, const std::string& FunctionName, int Argc, ...) {
1291    ArgTy Args;
1292    va_list vl;
1293    va_start(vl, Argc);
1294
1295    for(int i=0;i<Argc;i++) {
1296        const char* ArgType = va_arg(vl, const char*);
1297        const char* ArgName = va_arg(vl, const char*);
1298
1299        Args.push_back( make_pair(ArgType, ArgName) );
1300    }
1301    va_end(vl);
1302
1303    startFunction(AM, IsStatic, ReturnType, FunctionName, Args);
1304
1305    return;
1306}
1307
1308void RSReflection::Context::startFunction(AccessModifier AM,
1309                                          bool IsStatic,
1310                                          const char* ReturnType,
1311                                          const std::string& FunctionName,
1312                                          const ArgTy& Args)
1313{
1314    indent() << AccessModifierStr(AM) << ((IsStatic) ? " static " : " ") << ((ReturnType) ? ReturnType : "") << " " << FunctionName << "(";
1315
1316    bool FirstArg = true;
1317    for(ArgTy::const_iterator I = Args.begin();
1318        I != Args.end();
1319        I++)
1320    {
1321        if(!FirstArg)
1322            out() << ", ";
1323        else
1324            FirstArg = false;
1325
1326        out() << I->first << " " << I->second;
1327    }
1328
1329    out() << ")";
1330    startBlock();
1331
1332    return;
1333}
1334
1335void RSReflection::Context::endFunction() {
1336    endBlock();
1337    return;
1338}
1339
1340}   /* namespace slang */
1341