slang_rs_reflection.cpp revision 48bac230fe966771f3074975fc2426ffde519edf 
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
11using std::make_pair;
12using std::endl;
13
14
15#define RS_SCRIPT_CLASS_NAME_PREFIX         "ScriptC_"
16#define RS_SCRIPT_CLASS_SUPER_CLASS_NAME    "ScriptC"
17
18#define RS_TYPE_CLASS_NAME_PREFIX           "ScriptField_"
19#define RS_TYPE_CLASS_SUPER_CLASS_NAME      "android.renderscript.Script.FieldBase"
20
21#define RS_TYPE_ITEM_CLASS_NAME             "Item"
22
23#define RS_TYPE_ITEM_BUFFER_NAME            "mItemArray"
24#define RS_TYPE_ITEM_BUFFER_PACKER_NAME     "mIOBuffer"
25
26#define RS_EXPORT_VAR_INDEX_PREFIX          "mExportVarIdx_"
27#define RS_EXPORT_VAR_PREFIX                "mExportVar_"
28
29#define RS_EXPORT_FUNC_INDEX_PREFIX         "mExportFuncIdx_"
30
31#define RS_EXPORT_VAR_ALLOCATION_PREFIX     "mAlloction_"
32#define RS_EXPORT_VAR_DATA_STORAGE_PREFIX   "mData_"
33
34namespace slang {
35
36/* Some utility function using internal in RSReflection */
37static bool GetFileNameWithoutExtension(const std::string& FileName, std::string& OutFileName) {
38    OutFileName.clear();
39
40    if(FileName.empty() || (FileName == "-"))
41        return true;
42
43    /* find last component in given path */
44    size_t SlashPos = FileName.find_last_of("/\\");
45
46    if((SlashPos != std::string::npos) && ((SlashPos + 1) < FileName.length()))
47        OutFileName = FileName.substr(SlashPos + 1);
48    else
49        OutFileName = FileName;
50
51    size_t DotPos = OutFileName.find_first_of('.');
52    if(DotPos != std::string::npos)
53        OutFileName.erase(DotPos);
54
55    return true;
56}
57
58static const char* GetPrimitiveTypeName(const RSExportPrimitiveType* EPT) {
59    static const char* PrimitiveTypeJavaNameMap[] = {
60        "",
61        "",
62        "float",    /* RSExportPrimitiveType::DataTypeFloat32 */
63        "double",   /* RSExportPrimitiveType::DataTypeFloat64 */
64        "byte",     /* RSExportPrimitiveType::DataTypeSigned8 */
65        "short",    /* RSExportPrimitiveType::DataTypeSigned16 */
66        "int",      /* RSExportPrimitiveType::DataTypeSigned32 */
67        "long",     /* RSExportPrimitiveType::DataTypeSigned64 */
68        "short",    /* RSExportPrimitiveType::DataTypeUnsigned8 */
69        "int",      /* RSExportPrimitiveType::DataTypeUnsigned16 */
70        "long",     /* RSExportPrimitiveType::DataTypeUnsigned32 */
71        "long",     /* RSExportPrimitiveType::DataTypeUnsigned64 */
72
73        "int",      /* RSExportPrimitiveType::DataTypeUnsigned565 */
74        "int",      /* RSExportPrimitiveType::DataTypeUnsigned5551 */
75        "int",      /* RSExportPrimitiveType::DataTypeUnsigned4444 */
76
77        "boolean",  /* RSExportPrimitiveType::DataTypeBool */
78
79        "Element",  /* RSExportPrimitiveType::DataTypeRSElement */
80        "Type",     /* RSExportPrimitiveType::DataTypeRSType */
81        "Allocation",   /* RSExportPrimitiveType::DataTypeRSAllocation */
82        "Sampler",  /* RSExportPrimitiveType::DataTypeRSSampler */
83        "Script",   /* RSExportPrimitiveType::DataTypeRSScript */
84        "SimpleMesh",       /* RSExportPrimitiveType::DataTypeRSSimpleMesh */
85        "ProgramFragment",  /* RSExportPrimitiveType::DataTypeRSProgramFragment */
86        "ProgramVertex",    /* RSExportPrimitiveType::DataTypeRSProgramVertex */
87        "ProgramRaster",    /* RSExportPrimitiveType::DataTypeRSProgramRaster */
88        "ProgramStore",     /* RSExportPrimitiveType::DataTypeRSProgramStore */
89        "Font",     /* RSExportPrimitiveType::DataTypeRSFont */
90    };
91
92    if((EPT->getType() >= 0) && (EPT->getType() < (sizeof(PrimitiveTypeJavaNameMap) / sizeof(const char*)))) {
93        // printf("Type %d\n", EPT->getType());
94        return PrimitiveTypeJavaNameMap[ EPT->getType() ];
95    }
96
97    assert(false && "GetPrimitiveTypeName : Unknown primitive data type");
98    return NULL;
99}
100
101static const char* GetVectorTypeName(const RSExportVectorType* EVT) {
102    static const char* VectorTypeJavaNameMap[][3] = {
103        /* 0 */ { "Byte2",  "Byte3",    "Byte4" },
104        /* 1 */ { "Short2", "Short3",   "Short4" },
105        /* 2 */ { "Int2",   "Int3",     "Int4" },
106        /* 3 */ { "Long2",  "Long3",    "Long4" },
107        /* 4 */ { "Float2", "Float3",   "Float4" },
108    };
109
110    const char** BaseElement;
111
112    switch(EVT->getType()) {
113        case RSExportPrimitiveType::DataTypeSigned8:
114            BaseElement = VectorTypeJavaNameMap[0];
115        break;
116
117        case RSExportPrimitiveType::DataTypeSigned16:
118        case RSExportPrimitiveType::DataTypeUnsigned8:
119            BaseElement = VectorTypeJavaNameMap[1];
120        break;
121
122        case RSExportPrimitiveType::DataTypeSigned32:
123        case RSExportPrimitiveType::DataTypeUnsigned16:
124            BaseElement = VectorTypeJavaNameMap[2];
125        break;
126
127        case RSExportPrimitiveType::DataTypeUnsigned32:
128            BaseElement = VectorTypeJavaNameMap[3];
129        break;
130
131        case RSExportPrimitiveType::DataTypeFloat32:
132            BaseElement = VectorTypeJavaNameMap[4];
133        break;
134
135        case RSExportPrimitiveType::DataTypeBool:
136            BaseElement = VectorTypeJavaNameMap[0];
137        break;
138
139        default:
140            assert(false && "RSReflection::genElementTypeName : Unsupported vector element data type");
141        break;
142    }
143
144    assert((EVT->getNumElement() > 1) && (EVT->getNumElement() <= 4) && "Number of element in vector type is invalid");
145
146    return BaseElement[EVT->getNumElement() - 2];
147}
148
149static const char* GetVectorAccessor(int Index) {
150    static const char* VectorAccessorMap[] = {
151        /* 0 */ "x",
152        /* 1 */ "y",
153        /* 2 */ "z",
154        /* 3 */ "w",
155    };
156
157    assert((Index >= 0) && (Index < (sizeof(VectorAccessorMap) / sizeof(const char*))) && "Out-of-bound index to access vector member");
158
159    return VectorAccessorMap[Index];
160}
161
162static const char* GetPackerAPIName(const RSExportPrimitiveType* EPT) {
163    static const char* PrimitiveTypePackerAPINameMap[] = {
164        "",
165        "",
166        "addF32",   /* RSExportPrimitiveType::DataTypeFloat32 */
167        "addF64",   /* RSExportPrimitiveType::DataTypeFloat64 */
168        "addI8",    /* RSExportPrimitiveType::DataTypeSigned8 */
169        "addI16",   /* RSExportPrimitiveType::DataTypeSigned16 */
170        "addI32",   /* RSExportPrimitiveType::DataTypeSigned32 */
171        "addI64",   /* RSExportPrimitiveType::DataTypeSigned64 */
172        "addU8",    /* RSExportPrimitiveType::DataTypeUnsigned8 */
173        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned16 */
174        "addU32",   /* RSExportPrimitiveType::DataTypeUnsigned32 */
175        "addU64",   /* RSExportPrimitiveType::DataTypeUnsigned64 */
176
177        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned565 */
178        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned5551 */
179        "addU16",   /* RSExportPrimitiveType::DataTypeUnsigned4444 */
180
181        "addBoolean",  /* RSExportPrimitiveType::DataTypeBool */
182
183        "addObj",   /* RSExportPrimitiveType::DataTypeRSElement */
184        "addObj",   /* RSExportPrimitiveType::DataTypeRSType */
185        "addObj",   /* RSExportPrimitiveType::DataTypeRSAllocation */
186        "addObj",   /* RSExportPrimitiveType::DataTypeRSSampler */
187        "addObj",   /* RSExportPrimitiveType::DataTypeRSScript */
188        "addObj",   /* RSExportPrimitiveType::DataTypeRSSimpleMesh */
189        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramFragment */
190        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramVertex */
191        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramRaster */
192        "addObj",   /* RSExportPrimitiveType::DataTypeRSProgramStore */
193        "addObj",   /* RSExportPrimitiveType::DataTypeRSFont */
194    };
195
196    if((EPT->getType() >= 0) && (EPT->getType() < (sizeof(PrimitiveTypePackerAPINameMap) / sizeof(const char*))))
197        return PrimitiveTypePackerAPINameMap[ EPT->getType() ];
198
199    assert(false && "GetPackerAPIName : Unknown primitive data type");
200    return NULL;
201}
202
203static std::string GetTypeName(const RSExportType* ET) {
204    switch(ET->getClass()) {
205        case RSExportType::ExportClassPrimitive:
206            return GetPrimitiveTypeName(static_cast<const RSExportPrimitiveType*>(ET));
207        break;
208
209        case RSExportType::ExportClassPointer:
210        {
211            const RSExportType* PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
212
213            if(PointeeType->getClass() != RSExportType::ExportClassRecord)
214                return "Allocation";
215            else
216                return RS_TYPE_CLASS_NAME_PREFIX + PointeeType->getName();
217        }
218        break;
219
220        case RSExportType::ExportClassVector:
221            return GetVectorTypeName(static_cast<const RSExportVectorType*>(ET));
222        break;
223
224        case RSExportType::ExportClassRecord:
225            return RS_TYPE_CLASS_NAME_PREFIX + ET->getName() + "."RS_TYPE_ITEM_CLASS_NAME;
226        break;
227
228        default:
229            assert(false && "Unknown class of type");
230        break;
231    }
232
233    return "";
234}
235
236static const char* GetBuiltinElementConstruct(const RSExportType* ET) {
237    if(ET->getClass() == RSExportType::ExportClassPrimitive) {
238        const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(ET);
239        if(EPT->getKind() == RSExportPrimitiveType::DataKindUser) {
240            static const char* PrimitiveBuiltinElementConstructMap[] = {
241                NULL,
242                NULL,
243                "F32", /* RSExportPrimitiveType::DataTypeFloat32 */
244                NULL,       /* RSExportPrimitiveType::DataTypeFloat64 */
245                "I8",  /* RSExportPrimitiveType::DataTypeSigned8 */
246                NULL,       /* RSExportPrimitiveType::DataTypeSigned16 */
247                "I32", /* RSExportPrimitiveType::DataTypeSigned32 */
248                NULL,       /* RSExportPrimitiveType::DataTypeSigned64 */
249                "U8",  /* RSExportPrimitiveType::DataTypeUnsigned8 */
250                NULL,       /* RSExportPrimitiveType::DataTypeUnsigned16 */
251                "U32", /* RSExportPrimitiveType::DataTypeUnsigned32 */
252                NULL,       /* RSExportPrimitiveType::DataTypeUnsigned64 */
253
254                NULL,   /* RSExportPrimitiveType::DataTypeUnsigned565 */
255                NULL,   /* RSExportPrimitiveType::DataTypeUnsigned5551 */
256                NULL,   /* RSExportPrimitiveType::DataTypeUnsigned4444 */
257
258                "BOOLEAN",  /* RSExportPrimitiveType::DataTypeBool */
259
260                "ELEMENT", /* RSExportPrimitiveType::DataTypeRSElement */
261                "TYPE",    /* RSExportPrimitiveType::DataTypeRSType */
262                "ALLOCATION",  /* RSExportPrimitiveType::DataTypeRSAllocation */
263                "SAMPLER",     /* RSExportPrimitiveType::DataTypeRSSampler */
264                "SCRIPT",      /* RSExportPrimitiveType::DataTypeRSScript */
265                "MESH",        /* RSExportPrimitiveType::DataTypeRSSimpleMesh */
266                "PROGRAM_FRAGMENT",    /* RSExportPrimitiveType::DataTypeRSProgramFragment */
267                "PROGRAM_VERTEX",      /* RSExportPrimitiveType::DataTypeRSProgramVertex */
268                "PROGRAM_RASTER",      /* RSExportPrimitiveType::DataTypeRSProgramRaster */
269                "PROGRAM_STORE",       /* RSExportPrimitiveType::DataTypeRSProgramStore */
270                "FONT",       /* RSExportPrimitiveType::DataTypeRSFont */
271            };
272
273            if((EPT->getType() >= 0) && (EPT->getType() < (sizeof(PrimitiveBuiltinElementConstructMap) / sizeof(const char*))))
274                return PrimitiveBuiltinElementConstructMap[ EPT->getType() ];
275        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindPixelA) {
276            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
277                return "A_8";
278        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindPixelRGB) {
279            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned565)
280                return "RGB_565";
281            else if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
282                return "RGB_888";
283        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindPixelRGBA) {
284            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned5551)
285                return "RGB_5551";
286            else if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned4444)
287                return "RGB_4444";
288            else if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned8)
289                return "RGB_8888";
290        } else if(EPT->getKind() == RSExportPrimitiveType::DataKindIndex) {
291            if(EPT->getType() == RSExportPrimitiveType::DataTypeUnsigned16)
292                return "INDEX_16";
293        }
294    } else if(ET->getClass() == RSExportType::ExportClassVector) {
295        const RSExportVectorType* EVT = static_cast<const RSExportVectorType*>(ET);
296        if(EVT->getKind() == RSExportPrimitiveType::DataKindPosition) {
297            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
298                if(EVT->getNumElement() == 2)
299                    return "ATTRIB_POSITION_2";
300                else if(EVT->getNumElement() == 3)
301                    return "ATTRIB_POSITION_3";
302            }
303        } else if(EVT->getKind() == RSExportPrimitiveType::DataKindTexture) {
304            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
305                if(EVT->getNumElement() == 2)
306                    return "ATTRIB_TEXTURE_2";
307            }
308        } else if(EVT->getKind() == RSExportPrimitiveType::DataKindNormal) {
309            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
310                if(EVT->getNumElement() == 3)
311                    return "ATTRIB_NORMAL_3";
312            }
313        } else if(EVT->getKind() == RSExportPrimitiveType::DataKindColor) {
314            if(EVT->getType() == RSExportPrimitiveType::DataTypeFloat32) {
315                if(EVT->getNumElement() == 4)
316                    return "ATTRIB_COLOR_F32_4";
317            } else if(EVT->getType() == RSExportPrimitiveType::DataTypeUnsigned8) {
318                if(EVT->getNumElement() == 4)
319                    return "ATTRIB_COLOR_U8_4";
320            }
321        }
322    } else if(ET->getClass() == RSExportType::ExportClassPointer) {
323        return "USER_I32";  /* tread pointer type variable as unsigned int (TODO: this is target dependent) */
324    }
325
326    return NULL;
327}
328
329static const char* GetElementDataKindName(RSExportPrimitiveType::DataKind DK) {
330    static const char* ElementDataKindNameMap[] = {
331        "Element.DataKind.USER",        /* RSExportPrimitiveType::DataKindUser */
332        "Element.DataKind.COLOR",       /* RSExportPrimitiveType::DataKindColor */
333        "Element.DataKind.POSITION",    /* RSExportPrimitiveType::DataKindPosition */
334        "Element.DataKind.TEXTURE",     /* RSExportPrimitiveType::DataKindTexture */
335        "Element.DataKind.NORMAL",      /* RSExportPrimitiveType::DataKindNormal */
336        "Element.DataKind.INDEX",       /* RSExportPrimitiveType::DataKindIndex */
337        "Element.DataKind.POINT_SIZE",  /* RSExportPrimitiveType::DataKindPointSize */
338        "Element.DataKind.PIXEL_L",     /* RSExportPrimitiveType::DataKindPixelL */
339        "Element.DataKind.PIXEL_A",     /* RSExportPrimitiveType::DataKindPixelA */
340        "Element.DataKind.PIXEL_LA",    /* RSExportPrimitiveType::DataKindPixelLA */
341        "Element.DataKind.PIXEL_RGB",   /* RSExportPrimitiveType::DataKindPixelRGB */
342        "Element.DataKind.PIXEL_RGBA",  /* RSExportPrimitiveType::DataKindPixelRGBA */
343    };
344
345    if((DK >= 0) && (DK < (sizeof(ElementDataKindNameMap) / sizeof(const char*))))
346        return ElementDataKindNameMap[ DK ];
347    else
348        return NULL;
349}
350
351static const char* GetElementDataTypeName(RSExportPrimitiveType::DataType DT) {
352    static const char* ElementDataTypeNameMap[] = {
353        NULL,
354        NULL,
355        "Element.DataType.FLOAT_32",    /* RSExportPrimitiveType::DataTypeFloat32 */
356        NULL,                           /* RSExportPrimitiveType::DataTypeFloat64 */
357        "Element.DataType.SIGNED_8",    /* RSExportPrimitiveType::DataTypeSigned8 */
358        "Element.DataType.SIGNED_16",   /* RSExportPrimitiveType::DataTypeSigned16 */
359        "Element.DataType.SIGNED_32",   /* RSExportPrimitiveType::DataTypeSigned32 */
360        NULL,                           /* RSExportPrimitiveType::DataTypeSigned64 */
361        "Element.DataType.UNSIGNED_8",  /* RSExportPrimitiveType::DataTypeUnsigned8 */
362        "Element.DataType.UNSIGNED_16", /* RSExportPrimitiveType::DataTypeUnsigned16 */
363        "Element.DataType.UNSIGNED_32", /* RSExportPrimitiveType::DataTypeUnsigned32 */
364        NULL,                           /* RSExportPrimitiveType::DataTypeUnsigned64 */
365
366        "Element.DataType.UNSIGNED_5_6_5",   /* RSExportPrimitiveType::DataTypeUnsigned565 */
367        "Element.DataType.UNSIGNED_5_5_5_1", /* RSExportPrimitiveType::DataTypeUnsigned5551 */
368        "Element.DataType.UNSIGNED_4_4_4_4", /* RSExportPrimitiveType::DataTypeUnsigned4444 */
369
370        "Element.DataType.BOOLEAN",     /* RSExportPrimitiveType::DataTypeBool */
371
372        "Element.DataType.RS_ELEMENT",  /* RSExportPrimitiveType::DataTypeRSElement */
373        "Element.DataType.RS_TYPE",     /* RSExportPrimitiveType::DataTypeRSType */
374        "Element.DataType.RS_ALLOCATION",   /* RSExportPrimitiveType::DataTypeRSAllocation */
375        "Element.DataType.RS_SAMPLER",      /* RSExportPrimitiveType::DataTypeRSSampler */
376        "Element.DataType.RS_SCRIPT",       /* RSExportPrimitiveType::DataTypeRSScript */
377        "Element.DataType.RS_MESH",         /* RSExportPrimitiveType::DataTypeRSSimpleMesh */
378        "Element.DataType.RS_PROGRAM_FRAGMENT", /* RSExportPrimitiveType::DataTypeRSProgramFragment */
379        "Element.DataType.RS_PROGRAM_VERTEX",   /* RSExportPrimitiveType::DataTypeRSProgramVertex */
380        "Element.DataType.RS_PROGRAM_RASTER",   /* RSExportPrimitiveType::DataTypeRSProgramRaster */
381        "Element.DataType.RS_PROGRAM_STORE",    /* RSExportPrimitiveType::DataTypeRSProgramStore */
382        "Element.DataType.RS_FONT",    /* RSExportPrimitiveType::DataTypeRSFont */
383    };
384
385    if((DT >= 0) && (DT < (sizeof(ElementDataTypeNameMap) / sizeof(const char*))))
386        return ElementDataTypeNameMap[ DT ];
387    else
388        return NULL;
389}
390
391/****************************** Methods to generate script class ******************************/
392bool RSReflection::genScriptClass(Context& C, const std::string& ClassName, std::string& ErrorMsg) {
393    if(!C.startClass(Context::AM_Public, false, ClassName, RS_SCRIPT_CLASS_SUPER_CLASS_NAME, ErrorMsg))
394        return false;
395
396    genScriptClassConstructor(C);
397
398    /* Reflect export variable */
399    for(RSContext::const_export_var_iterator I = mRSContext->export_vars_begin();
400        I != mRSContext->export_vars_end();
401        I++)
402        genExportVariable(C, *I);
403
404    /* Reflect export function */
405    for(RSContext::const_export_func_iterator I = mRSContext->export_funcs_begin();
406        I != mRSContext->export_funcs_end();
407        I++)
408        genExportFunction(C, *I);
409
410    C.endClass();
411
412    return true;
413}
414
415void RSReflection::genScriptClassConstructor(Context& C) {
416    C.indent() << "// Constructor" << endl;
417    C.startFunction(Context::AM_Public, false, NULL, C.getClassName(), 4, "RenderScript", "rs",
418                                                                          "Resources", "resources",
419                                                                          "int", "id",
420                                                                          "boolean", "isRoot");
421    /* Call constructor of super class */
422    C.indent() << "super(rs, resources, id, isRoot);" << endl;
423
424    /* If an exported variable has initial value, reflect it */
425
426    for(RSContext::const_export_var_iterator I = mRSContext->export_vars_begin();
427        I != mRSContext->export_vars_end();
428        I++)
429    {
430        const RSExportVar* EV = *I;
431        if(!EV->getInit().isUninit())
432            genInitExportVariable(C, EV->getType(), EV->getName(), EV->getInit());
433    }
434
435    C.endFunction();
436    return;
437}
438
439void RSReflection::genInitBoolExportVariable(Context& C, const std::string& VarName, const APValue& Val) {
440    assert(!Val.isUninit() && "Not a valid initializer");
441
442    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
443    assert((Val.getKind() == APValue::Int) && "Bool type has wrong initial APValue");
444
445    if (Val.getInt().getSExtValue() == 0) {
446        C.out() << "false";
447    } else {
448        C.out() << "true";
449    }
450    C.out() << ";" << endl;
451
452    return;
453}
454
455void RSReflection::genInitPrimitiveExportVariable(Context& C, const std::string& VarName, const APValue& Val) {
456    assert(!Val.isUninit() && "Not a valid initializer");
457
458    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = ";
459    switch(Val.getKind()) {
460        case APValue::Int: C.out() << Val.getInt().getSExtValue(); break;
461        case APValue::Float: C.out() << Val.getFloat().convertToDouble(); break;
462
463        case APValue::ComplexInt:
464        case APValue::ComplexFloat:
465        case APValue::LValue:
466        case APValue::Vector:
467            assert(false && "Primitive type cannot have such kind of initializer");
468        break;
469
470        default:
471            assert(false && "Unknown kind of initializer");
472        break;
473    }
474    C.out() << ";" << endl;
475
476    return;
477}
478
479void RSReflection::genInitExportVariable(Context& C, const RSExportType* ET, const std::string& VarName, const APValue& Val) {
480    assert(!Val.isUninit() && "Not a valid initializer");
481
482    switch(ET->getClass()) {
483        case RSExportType::ExportClassPrimitive: {
484            const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(ET);
485            if (EPT->getType() == RSExportPrimitiveType::DataTypeBool) {
486                genInitBoolExportVariable(C, VarName, Val);
487            } else {
488                genInitPrimitiveExportVariable(C, VarName, Val);
489            }
490            break;
491        }
492
493        case RSExportType::ExportClassPointer:
494            if(!Val.isInt() || Val.getInt().getSExtValue() != 0)
495                std::cout << "Initializer which is non-NULL to pointer type variable will be ignored" << endl;
496        break;
497
498        case RSExportType::ExportClassVector:
499        {
500            const RSExportVectorType* EVT = static_cast<const RSExportVectorType*>(ET);
501            switch(Val.getKind()) {
502                case APValue::Int:
503                case APValue::Float:
504                    for(int i=0;i<EVT->getNumElement();i++) {
505                        std::string Name =  VarName + "." + GetVectorAccessor(i);
506                        genInitPrimitiveExportVariable(C, Name, Val);
507                    }
508                break;
509
510                case APValue::Vector:
511                {
512                    C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = new " << GetVectorTypeName(EVT) << "();" << endl;
513
514                    unsigned NumElements = std::min(static_cast<unsigned>(EVT->getNumElement()), Val.getVectorLength());
515                    for(unsigned i=0;i<NumElements;i++) {
516                        const APValue& ElementVal = Val.getVectorElt(i);
517                        std::string Name =  VarName + "." + GetVectorAccessor(i);
518                        genInitPrimitiveExportVariable(C, Name, ElementVal);
519                    }
520                }
521                break;
522            }
523        }
524        break;
525
526        /* TODO: Resolving initializer of a record type variable is complex. It cannot obtain by just simply evaluating the initializer expression. */
527        case RSExportType::ExportClassRecord:
528        {
529            /*
530            unsigned InitIndex = 0;
531            const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
532
533            assert((Val.getKind() == APValue::Vector) && "Unexpected type of initializer for record type variable");
534
535            C.indent() << RS_EXPORT_VAR_PREFIX << VarName << " = new "RS_TYPE_CLASS_NAME_PREFIX << ERT->getName() <<  "."RS_TYPE_ITEM_CLASS_NAME"();" << endl;
536
537            for(RSExportRecordType::const_field_iterator I = ERT->fields_begin();
538                I != ERT->fields_end();
539                I++)
540            {
541                const RSExportRecordType::Field* F = *I;
542                std::string FieldName = VarName + "." + F->getName();
543
544                if(InitIndex > Val.getVectorLength())
545                    break;
546
547                genInitPrimitiveExportVariable(C, FieldName, Val.getVectorElt(InitIndex++));
548            }
549            */
550            assert(false && "Unsupported initializer for record type variable currently");
551        }
552        break;
553
554        default:
555            assert(false && "Unknown class of type");
556        break;
557    }
558    return;
559}
560
561void RSReflection::genExportVariable(Context& C, const RSExportVar* EV) {
562    const RSExportType* ET = EV->getType();
563
564    C.indent() << "private final static int "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << " = " << C.getNextExportVarSlot() << ";" << endl;
565
566    switch(ET->getClass()) {
567        case RSExportType::ExportClassPrimitive:
568            genPrimitiveTypeExportVariable(C, EV);
569        break;
570
571        case RSExportType::ExportClassPointer:
572            genPointerTypeExportVariable(C, EV);
573        break;
574
575        case RSExportType::ExportClassVector:
576            genVectorTypeExportVariable(C, EV);
577        break;
578
579        case RSExportType::ExportClassRecord:
580            genRecordTypeExportVariable(C, EV);
581        break;
582
583        default:
584            assert(false && "Unknown class of type");
585        break;
586    }
587
588    return;
589}
590
591void RSReflection::genExportFunction(Context& C, const RSExportFunc* EF) {
592    C.indent() << "private final static int "RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << " = " << C.getNextExportFuncSlot() << ";" << endl;
593
594    /* invoke_*() */
595    Context::ArgTy Args;
596
597    for(RSExportFunc::const_param_iterator I = EF->params_begin();
598        I != EF->params_end();
599        I++)
600    {
601        const RSExportFunc::Parameter* P = *I;
602        Args.push_back( make_pair(GetTypeName(P->getType()), P->getName()) );
603    }
604
605    C.startFunction(Context::AM_Public, false, "void", "invoke_" + EF->getName(), Args);
606
607    if(!EF->hasParam()) {
608        C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ");" << endl;
609    } else {
610        const RSExportRecordType* ERT = EF->getParamPacketType();
611        std::string FieldPackerName = EF->getName() + "_fp";
612
613        if(genCreateFieldPacker(C, ERT, FieldPackerName.c_str()))
614            genPackVarOfType(C, ERT, NULL, FieldPackerName.c_str());
615
616        C.indent() << "invoke("RS_EXPORT_FUNC_INDEX_PREFIX << EF->getName() << ", " << FieldPackerName << ");" << endl;
617    }
618
619    C.endFunction();
620    return;
621}
622
623void RSReflection::genPrimitiveTypeExportVariable(Context& C, const RSExportVar* EV) {
624    assert((EV->getType()->getClass() == RSExportType::ExportClassPrimitive) && "Variable should be type of primitive here");
625
626    const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(EV->getType());
627    const char* TypeName = GetPrimitiveTypeName(EPT);
628
629    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
630
631    /* set_*() */
632    if(!EV->isConst()) {
633        C.startFunction(Context::AM_Public, false, "void", "set_" + EV->getName(), 1, TypeName, "v");
634        C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
635
636        if(EPT->isRSObjectType())
637            C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", (v == null) ? 0 : v.getID());" << endl;
638        else
639            C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", v);" << endl;
640
641        C.endFunction();
642    }
643
644    genGetExportVariable(C, TypeName, EV->getName());
645
646    return;
647}
648
649void RSReflection::genPointerTypeExportVariable(Context& C, const RSExportVar* EV) {
650    const RSExportType* ET = EV->getType();
651    const RSExportType* PointeeType;
652    std::string TypeName;
653
654    assert((ET->getClass() == RSExportType::ExportClassPointer) && "Variable should be type of pointer here");
655
656    PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
657    TypeName = GetTypeName(ET);
658
659    /* bind_*() */
660    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
661
662    C.startFunction(Context::AM_Public, false, "void", "bind_" + EV->getName(), 1, TypeName.c_str(), "v");
663
664    C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
665    C.indent() << "if(v == null) bindAllocation(null, "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ");" << endl;
666
667    if(PointeeType->getClass() == RSExportType::ExportClassRecord)
668        C.indent() << "else bindAllocation(v.getAllocation(), "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ");" << endl;
669    else
670        C.indent() << "else bindAllocation(v, "RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ");" << endl;
671
672    C.endFunction();
673
674    genGetExportVariable(C, TypeName, EV->getName());
675
676    return;
677}
678
679void RSReflection::genVectorTypeExportVariable(Context& C, const RSExportVar* EV) {
680    assert((EV->getType()->getClass() == RSExportType::ExportClassVector) && "Variable should be type of vector here");
681
682    const RSExportVectorType* EVT = static_cast<const RSExportVectorType*>(EV->getType());
683    const char* TypeName = GetVectorTypeName(EVT);
684    const char* FieldPackerName = "fp";
685
686    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
687
688    /* set_*() */
689    if(!EV->isConst()) {
690        C.startFunction(Context::AM_Public, false, "void", "set_" + EV->getName(), 1, TypeName, "v");
691        C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
692
693        if(genCreateFieldPacker(C, EVT, FieldPackerName))
694            genPackVarOfType(C, EVT, "v", FieldPackerName);
695        C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", " << FieldPackerName << ");" << endl;
696
697        C.endFunction();
698    }
699
700    genGetExportVariable(C, TypeName, EV->getName());
701    return;
702}
703
704void RSReflection::genRecordTypeExportVariable(Context& C, const RSExportVar* EV) {
705    assert((EV->getType()->getClass() == RSExportType::ExportClassRecord) && "Variable should be type of struct here");
706
707    const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(EV->getType());
708    std::string TypeName = RS_TYPE_CLASS_NAME_PREFIX + ERT->getName() + "."RS_TYPE_ITEM_CLASS_NAME;
709    const char* FieldPackerName = "fp";
710
711    C.indent() << "private " << TypeName << " "RS_EXPORT_VAR_PREFIX << EV->getName() << ";" << endl;
712
713    /* set_*() */
714    if(!EV->isConst()) {
715        C.startFunction(Context::AM_Public, false, "void", "set_" + EV->getName(), 1, TypeName.c_str(), "v");
716        C.indent() << RS_EXPORT_VAR_PREFIX << EV->getName() << " = v;" << endl;
717
718        if(genCreateFieldPacker(C, ERT, FieldPackerName))
719            genPackVarOfType(C, ERT, "v", FieldPackerName);
720        C.indent() << "setVar("RS_EXPORT_VAR_INDEX_PREFIX << EV->getName() << ", " << FieldPackerName << ");" << endl;
721
722        C.endFunction();
723    }
724
725    genGetExportVariable(C, TypeName.c_str(), EV->getName());
726    return;
727}
728
729void RSReflection::genGetExportVariable(Context& C, const std::string& TypeName, const std::string& VarName) {
730    C.startFunction(Context::AM_Public, false, TypeName.c_str(), "get_" + VarName, 0);
731
732    C.indent() << "return "RS_EXPORT_VAR_PREFIX << VarName << ";" << endl;
733
734    C.endFunction();
735    return;
736}
737
738/****************************** Methods to generate script class /end ******************************/
739
740bool RSReflection::genCreateFieldPacker(Context& C, const RSExportType* ET, const char* FieldPackerName) {
741    size_t AllocSize = RSExportType::GetTypeAllocSize(ET);
742    if(AllocSize > 0)
743        C.indent() << "FieldPacker " << FieldPackerName << " = new FieldPacker(" << AllocSize << ");" << endl;
744    else
745        return false;
746    return true;
747}
748
749void RSReflection::genPackVarOfType(Context& C, const RSExportType* ET, const char* VarName, const char* FieldPackerName) {
750    switch(ET->getClass()) {
751        case RSExportType::ExportClassPrimitive:
752        case RSExportType::ExportClassVector:
753            C.indent() << FieldPackerName << "." << GetPackerAPIName(static_cast<const RSExportPrimitiveType*>(ET)) << "(" << VarName << ");" << endl;
754        break;
755
756        case RSExportType::ExportClassPointer:
757        {
758            /* Must reflect as type Allocation in Java */
759            const RSExportType* PointeeType = static_cast<const RSExportPointerType*>(ET)->getPointeeType();
760
761            if(PointeeType->getClass() != RSExportType::ExportClassRecord)
762                C.indent() << FieldPackerName << ".addI32(" << VarName << ".getPtr());" << endl;
763            else
764                C.indent() << FieldPackerName << ".addI32(" << VarName << ".getAllocation().getPtr());" << endl;
765        }
766        break;
767
768        case RSExportType::ExportClassRecord:
769        {
770            const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
771            int Pos = 0;    /* relative pos from now on in field packer */
772
773            for(RSExportRecordType::const_field_iterator I = ERT->fields_begin();
774                I != ERT->fields_end();
775                I++)
776            {
777                const RSExportRecordType::Field* F = *I;
778                std::string FieldName;
779                size_t FieldOffset = F->getOffsetInParent();
780                size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
781                size_t FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
782
783                if(VarName != NULL)
784                    FieldName = VarName + ("." + F->getName());
785                else
786                    FieldName = F->getName();
787
788                if(FieldOffset > Pos)
789                    C.indent() << FieldPackerName << ".skip(" << (FieldOffset - Pos) << ");" << endl;
790
791                genPackVarOfType(C, F->getType(), FieldName.c_str(), FieldPackerName);
792
793                if(FieldAllocSize > FieldStoreSize)  /* there's padding in the field type */
794                    C.indent() << FieldPackerName << ".skip(" << (FieldAllocSize - FieldStoreSize) << ");" << endl;
795
796                Pos = FieldOffset + FieldAllocSize;
797            }
798
799            /* There maybe some padding after the struct */
800            size_t Padding = RSExportType::GetTypeAllocSize(ERT) - Pos;
801            if(Padding > 0)
802                C.indent() << FieldPackerName << ".skip(" << Padding << ");" << endl;
803        }
804        break;
805
806        default:
807            assert(false && "Unknown class of type");
808        break;
809    }
810
811    return;
812}
813
814/****************************** Methods to generate type class  ******************************/
815bool RSReflection::genTypeClass(Context& C, const RSExportRecordType* ERT, std::string& ErrorMsg) {
816    std::string ClassName = RS_TYPE_CLASS_NAME_PREFIX + ERT->getName();
817
818    if(!C.startClass(Context::AM_Public, false, ClassName, RS_TYPE_CLASS_SUPER_CLASS_NAME, ErrorMsg))
819        return false;
820
821    if(!genTypeItemClass(C, ERT, ErrorMsg))
822        return false;
823
824    /* Declare item buffer and item buffer packer */
825    C.indent() << "private "RS_TYPE_ITEM_CLASS_NAME" "RS_TYPE_ITEM_BUFFER_NAME"[];" << endl;
826    C.indent() << "private FieldPacker "RS_TYPE_ITEM_BUFFER_PACKER_NAME";" << endl;
827
828    genTypeClassConstructor(C, ERT);
829    genTypeClassCopyToArray(C, ERT);
830    genTypeClasSet(C, ERT);
831    genTypeClasCopyAll(C, ERT);
832
833    C.endClass();
834
835    return true;
836}
837
838bool RSReflection::genTypeItemClass(Context& C, const RSExportRecordType* ERT, std::string& ErrorMsg) {
839    C.indent() << "static public class "RS_TYPE_ITEM_CLASS_NAME;
840    C.startBlock();
841
842    C.indent() << "public static final int sizeof = " << RSExportType::GetTypeAllocSize(ERT) << ";" << endl;
843
844    /* Member elements */
845    C.out() << endl;
846    for(RSExportRecordType::const_field_iterator FI = ERT->fields_begin();
847        FI != ERT->fields_end();
848        FI++)
849        C.indent() << GetTypeName((*FI)->getType()) << " " << (*FI)->getName() << ";" << endl;
850
851    /* Constructor */
852    C.out() << endl;
853    C.indent() << RS_TYPE_ITEM_CLASS_NAME"()";
854    C.startBlock();
855
856    for(RSExportRecordType::const_field_iterator FI = ERT->fields_begin();
857        FI != ERT->fields_end();
858        FI++)
859    {
860        const RSExportRecordType::Field* F = *FI;
861        if((F->getType()->getClass() == RSExportType::ExportClassVector) || (F->getType()->getClass() == RSExportType::ExportClassRecord))
862        C.indent() << F->getName() << " = new " << GetTypeName(F->getType()) << "();" << endl;
863    }
864
865    C.endBlock();   /* end Constructor */
866
867    C.endBlock();   /* end Item class */
868
869
870    return true;
871}
872
873void RSReflection::genTypeClassConstructor(Context& C, const RSExportRecordType* ERT) {
874    const char* RenderScriptVar = "rs";
875
876    C.startFunction(Context::AM_Public, true, "Element", "createElement", 1, "RenderScript", RenderScriptVar);
877    genBuildElement(C, ERT, RenderScriptVar);
878    C.endFunction();
879
880    C.startFunction(Context::AM_Public, false, NULL, C.getClassName(), 2, "RenderScript", RenderScriptVar,
881                                                                          "int", "count");
882
883    C.indent() << RS_TYPE_ITEM_BUFFER_NAME" = null;" << endl;
884    C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME" = null;" << endl;
885    C.indent() << "mElement = createElement(" << RenderScriptVar << ");" << endl;
886    /* Call init() in super class */
887    C.indent() << "init(" << RenderScriptVar << ", count);" << endl;
888    C.endFunction();
889
890    return;
891}
892
893void RSReflection::genTypeClassCopyToArray(Context& C, const RSExportRecordType* ERT) {
894    C.startFunction(Context::AM_Private, false, "void", "copyToArray", 2, RS_TYPE_ITEM_CLASS_NAME, "i",
895                                                                          "int", "index");
896
897    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;
898    C.indent() << RS_TYPE_ITEM_BUFFER_PACKER_NAME".reset(index * "RS_TYPE_ITEM_CLASS_NAME".sizeof);" << endl;
899
900    genPackVarOfType(C, ERT, "i", RS_TYPE_ITEM_BUFFER_PACKER_NAME);
901
902    C.endFunction();
903    return;
904}
905
906void RSReflection::genTypeClasSet(Context& C, const RSExportRecordType* ERT) {
907    C.startFunction(Context::AM_Public, false, "void", "set", 3, RS_TYPE_ITEM_CLASS_NAME, "i",
908                                                                 "int", "index",
909                                                                 "boolean", "copyNow");
910    C.indent() << "if ("RS_TYPE_ITEM_BUFFER_NAME" == null) "RS_TYPE_ITEM_BUFFER_NAME" = new "RS_TYPE_ITEM_CLASS_NAME"[mType.getX() /* count */];" << endl;
911    C.indent() << RS_TYPE_ITEM_BUFFER_NAME"[index] = i;" << endl;
912
913    C.indent() << "if (copyNow) ";
914    C.startBlock();
915
916    C.indent() << "copyToArray(i, index);" << endl;
917    //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;
918    C.indent() << "mAllocation.subData1D(index, 1, "RS_TYPE_ITEM_BUFFER_PACKER_NAME".getData());" << endl;
919
920    C.endBlock();   /* end if (copyNow) */
921
922    C.endFunction();
923    return;
924}
925
926void RSReflection::genTypeClasCopyAll(Context& C, const RSExportRecordType* ERT) {
927    C.startFunction(Context::AM_Public, false, "void", "copyAll", 0);
928
929    C.indent() << "for (int ct=0; ct < "RS_TYPE_ITEM_BUFFER_NAME".length; ct++) copyToArray("RS_TYPE_ITEM_BUFFER_NAME"[ct], ct);" << endl;
930    C.indent() << "mAllocation.data("RS_TYPE_ITEM_BUFFER_PACKER_NAME".getData());" << endl;
931
932    C.endFunction();
933    return;
934}
935
936/****************************** Methods to generate type class /end ******************************/
937
938/******************** Methods to create Element in Java of given record type ********************/
939void RSReflection::genBuildElement(Context& C, const RSExportRecordType* ERT, const char* RenderScriptVar) {
940    const char* ElementBuilderName = "eb";
941
942    /* Create element builder */
943    //    C.startBlock(true);
944
945    C.indent() << "Element.Builder " << ElementBuilderName << " = new Element.Builder(" << RenderScriptVar << ");" << endl;
946
947    /* eb.add(...) */
948    genAddElementToElementBuilder(C, ERT, "", ElementBuilderName, RenderScriptVar);
949
950    C.indent() << "return " << ElementBuilderName << ".create();" << endl;
951
952    //   C.endBlock();
953    return;
954}
955
956#define EB_ADD(x, ...)  \
957    C.indent() << ElementBuilderName << ".add(Element." << x ##__VA_ARGS__ ", \"" << VarName << "\");" << endl
958
959void RSReflection::genAddElementToElementBuilder(Context& C, const RSExportType* ET, const std::string& VarName, const char* ElementBuilderName, const char* RenderScriptVar) {
960    const char* ElementConstruct = GetBuiltinElementConstruct(ET);
961
962    if(ElementConstruct != NULL) {
963      EB_ADD(ElementConstruct << "(" << RenderScriptVar << ")");
964    } else {
965      if((ET->getClass() == RSExportType::ExportClassPrimitive) || (ET->getClass() == RSExportType::ExportClassVector)) {
966        const RSExportPrimitiveType* EPT = static_cast<const RSExportPrimitiveType*>(ET);
967        const char* DataKindName = GetElementDataKindName(EPT->getKind());
968        const char* DataTypeName = GetElementDataTypeName(EPT->getType());
969        int Size = (ET->getClass() == RSExportType::ExportClassVector) ? static_cast<const RSExportVectorType*>(ET)->getNumElement() : 1;
970
971        switch(EPT->getKind()) {
972          case RSExportPrimitiveType::DataKindColor:
973          case RSExportPrimitiveType::DataKindPosition:
974          case RSExportPrimitiveType::DataKindTexture:
975          case RSExportPrimitiveType::DataKindNormal:
976          case RSExportPrimitiveType::DataKindPointSize:
977            /* Element.createAttrib() */
978            EB_ADD("createAttrib(" << RenderScriptVar << ", " << DataTypeName << ", " << DataKindName << ", " << Size << ")");
979            break;
980
981          case RSExportPrimitiveType::DataKindIndex:
982            /* Element.createIndex() */
983            EB_ADD("createAttrib(" << RenderScriptVar << ")");
984            break;
985
986          case RSExportPrimitiveType::DataKindPixelL:
987          case RSExportPrimitiveType::DataKindPixelA:
988          case RSExportPrimitiveType::DataKindPixelLA:
989          case RSExportPrimitiveType::DataKindPixelRGB:
990          case RSExportPrimitiveType::DataKindPixelRGBA:
991            /* Element.createPixel() */
992            EB_ADD("createVector(" << RenderScriptVar << ", " << DataTypeName << ", " << DataKindName << ")");
993            break;
994
995          case RSExportPrimitiveType::DataKindUser:
996          default:
997            if(EPT->getClass() == RSExportType::ExportClassPrimitive)
998              /* Element.createUser() */
999              EB_ADD("createUser(" << RenderScriptVar << ", " << DataTypeName << ")");
1000            else /* (ET->getClass() == RSExportType::ExportClassVector) must hold here */
1001              /* Element.createVector() */
1002              EB_ADD("createVector(" << RenderScriptVar << ", " << DataTypeName << ", " << Size << ")");
1003            break;
1004        }
1005      } else if(ET->getClass() == RSExportType::ExportClassPointer) {
1006        /* Pointer type variable should be resolved in GetBuiltinElementConstruct()  */
1007        assert(false && "??");
1008      } else if(ET->getClass() == RSExportType::ExportClassRecord) {
1009        /*
1010         * Simalar to genPackVarOfType.
1011         *
1012         * TODO: Generalize these two function such that there's no duplicated codes.
1013         */
1014        const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
1015        int Pos = 0;    /* relative pos from now on */
1016
1017        for(RSExportRecordType::const_field_iterator I = ERT->fields_begin();
1018            I != ERT->fields_end();
1019            I++)
1020        {
1021          const RSExportRecordType::Field* F = *I;
1022          std::string FieldName;
1023          size_t FieldOffset = F->getOffsetInParent();
1024          size_t FieldStoreSize = RSExportType::GetTypeStoreSize(F->getType());
1025          size_t FieldAllocSize = RSExportType::GetTypeAllocSize(F->getType());
1026
1027          if(!VarName.empty())
1028            FieldName = VarName + "." + F->getName();
1029          else
1030            FieldName = F->getName();
1031
1032          /* alignment */
1033          genAddPaddingToElementBuiler(C, (FieldOffset - Pos), ElementBuilderName, RenderScriptVar);
1034
1035          /* eb.add(...) */
1036          genAddElementToElementBuilder(C, (*I)->getType(), FieldName, ElementBuilderName, RenderScriptVar);
1037
1038          /* there's padding within the field type */
1039          genAddPaddingToElementBuiler(C, (FieldAllocSize - FieldStoreSize), ElementBuilderName, RenderScriptVar);
1040
1041          Pos = FieldOffset + FieldAllocSize;
1042        }
1043
1044        /* There maybe some padding after the struct */
1045        genAddPaddingToElementBuiler(C, (RSExportType::GetTypeAllocSize(ERT) - Pos), ElementBuilderName, RenderScriptVar);
1046      } else {
1047        assert(false && "Unknown class of type");
1048      }
1049    }
1050}
1051
1052void RSReflection::genAddPaddingToElementBuiler(Context& C, size_t PaddingSize, const char* ElementBuilderName, const char* RenderScriptVar) {
1053    while(PaddingSize > 0) {
1054        const std::string& VarName = C.createPaddingField();
1055        if(PaddingSize >= 4) {
1056          EB_ADD("U32(" << RenderScriptVar << ")");
1057          PaddingSize -= 4;
1058        } else if(PaddingSize >= 2) {
1059            EB_ADD("U16(" << RenderScriptVar << ")");
1060            PaddingSize -= 2;
1061        } else if(PaddingSize >= 1) {
1062            EB_ADD("U8(" << RenderScriptVar << ")");
1063            PaddingSize -= 1;
1064        }
1065    }
1066    return;
1067}
1068
1069#undef EB_ADD
1070/******************** Methods to create Element in Java of given record type /end ********************/
1071
1072bool RSReflection::reflect(const char* OutputPackageName, const std::string& InputFileName, const std::string& OutputBCFileName) {
1073    Context *C = NULL;
1074    std::string ResourceId = "";
1075
1076    if(!GetFileNameWithoutExtension(OutputBCFileName, ResourceId))
1077        return false;
1078
1079    if(ResourceId.empty())
1080        ResourceId = "<Resource ID>";
1081
1082    if((OutputPackageName == NULL) || (*OutputPackageName == '\0') || strcmp(OutputPackageName, "-") == 0)
1083        C = new Context("<Package Name>", ResourceId, true);
1084    else
1085        C = new Context(OutputPackageName, ResourceId, false);
1086
1087    if(C != NULL) {
1088        std::string ErrorMsg, ScriptClassName;
1089        /* class ScriptC_<ScriptName> */
1090        if(!GetFileNameWithoutExtension(InputFileName, ScriptClassName))
1091            return false;
1092
1093        if(ScriptClassName.empty())
1094            ScriptClassName = "<Input Script Name>";
1095
1096        ScriptClassName.at(0) = toupper(ScriptClassName.at(0));
1097        ScriptClassName.insert(0, RS_SCRIPT_CLASS_NAME_PREFIX);
1098
1099        if(!genScriptClass(*C, ScriptClassName, ErrorMsg)) {
1100            std::cerr << "Failed to generate class " << ScriptClassName << " (" << ErrorMsg << ")" << endl;
1101            return false;
1102        }
1103
1104        /* class ScriptField_<TypeName> */
1105        for(RSContext::const_export_type_iterator TI = mRSContext->export_types_begin();
1106            TI != mRSContext->export_types_end();
1107            TI++)
1108        {
1109            const RSExportType* ET = TI->getValue();
1110
1111            if(ET->getClass() == RSExportType::ExportClassRecord) {
1112                const RSExportRecordType* ERT = static_cast<const RSExportRecordType*>(ET);
1113
1114                if(!ERT->isArtificial() && !genTypeClass(*C, ERT, ErrorMsg)) {
1115                    std::cerr << "Failed to generate type class for struct '" << ERT->getName() << "' (" << ErrorMsg << ")" << endl;
1116                    return false;
1117                }
1118            }
1119        }
1120    }
1121
1122    return true;
1123}
1124
1125/****************************** RSReflection::Context ******************************/
1126const char* const RSReflection::Context::LicenseNote =
1127    "/*\n"
1128	" * Copyright (C) 2010 The Android Open Source Project\n"
1129	" *\n"
1130	" * Licensed under the Apache License, Version 2.0 (the \"License\");\n"
1131	" * you may not use this file except in compliance with the License.\n"
1132	" * You may obtain a copy of the License at\n"
1133	" *\n"
1134	" *      http://www.apache.org/licenses/LICENSE-2.0\n"
1135	" *\n"
1136	" * Unless required by applicable law or agreed to in writing, software\n"
1137	" * distributed under the License is distributed on an \"AS IS\" BASIS,\n"
1138	" * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n"
1139	" * See the License for the specific language governing permissions and\n"
1140	" * limitations under the License.\n"
1141	" */\n";
1142
1143const char* const RSReflection::Context::Import[] = {
1144    /* RenderScript java class */
1145    "android.renderscript.*",
1146    /* Import R */
1147    "android.content.res.Resources",
1148    /* Import for debugging */
1149    "android.util.Log",
1150};
1151
1152const char* RSReflection::Context::AccessModifierStr(AccessModifier AM) {
1153    switch(AM) {
1154        case AM_Public: return "public"; break;
1155        case AM_Protected: return "protected"; break;
1156        case AM_Private: return "private"; break;
1157        default: return ""; break;
1158    }
1159}
1160
1161bool RSReflection::Context::startClass(AccessModifier AM, bool IsStatic, const std::string& ClassName, const char* SuperClassName, std::string& ErrorMsg) {
1162    if(mVerbose)
1163        std::cout << "Generating " << ClassName << ".java ..." << endl;
1164
1165    /* Open the file */
1166    if(!mUseStdout) {
1167        mOF.clear();
1168        mOF.open((ClassName + ".java").c_str());
1169        if(!mOF.good()) {
1170            ErrorMsg = "failed to open file '" + ClassName + ".java' for write";
1171            return false;
1172        }
1173    }
1174
1175    /* License */
1176    out() << LicenseNote << endl;
1177
1178    /* Package */
1179    if(!mPackageName.empty())
1180        out() << "package " << mPackageName << ";" << endl;
1181    out() << endl;
1182
1183    /* Imports */
1184    for(int i=0;i<(sizeof(Import)/sizeof(const char*));i++)
1185        out() << "import " << Import[i] << ";" << endl;
1186    out() << endl;
1187
1188    out() << AccessModifierStr(AM) << ((IsStatic) ? " static" : "") << " class " << ClassName;
1189    if(SuperClassName != NULL)
1190        out() << " extends " << SuperClassName;
1191
1192    startBlock();
1193
1194    mClassName = ClassName;
1195
1196    return true;
1197}
1198
1199void RSReflection::Context::endClass() {
1200    endBlock();
1201    if(!mUseStdout)
1202        mOF.close();
1203    clear();
1204    return;
1205}
1206
1207void RSReflection::Context::startBlock(bool ShouldIndent) {
1208    if(ShouldIndent)
1209        indent() << "{" << endl;
1210    else
1211        out() << " {" << endl;
1212    incIndentLevel();
1213    return;
1214}
1215
1216void RSReflection::Context::endBlock() {
1217    decIndentLevel();
1218    indent() << "}" << endl << endl;
1219    return;
1220}
1221
1222void RSReflection::Context::startTypeClass(const std::string& ClassName) {
1223    indent() << "public static class " << ClassName;
1224    startBlock();
1225    return;
1226}
1227
1228void RSReflection::Context::endTypeClass() {
1229    endBlock();
1230    return;
1231}
1232
1233void RSReflection::Context::startFunction(AccessModifier AM, bool IsStatic, const char* ReturnType, const std::string& FunctionName, int Argc, ...) {
1234    ArgTy Args;
1235    va_list vl;
1236    va_start(vl, Argc);
1237
1238    for(int i=0;i<Argc;i++) {
1239        const char* ArgType = va_arg(vl, const char*);
1240        const char* ArgName = va_arg(vl, const char*);
1241
1242        Args.push_back( make_pair(ArgType, ArgName) );
1243    }
1244    va_end(vl);
1245
1246    startFunction(AM, IsStatic, ReturnType, FunctionName, Args);
1247
1248    return;
1249}
1250
1251void RSReflection::Context::startFunction(AccessModifier AM,
1252                                          bool IsStatic,
1253                                          const char* ReturnType,
1254                                          const std::string& FunctionName,
1255                                          const ArgTy& Args)
1256{
1257    indent() << AccessModifierStr(AM) << ((IsStatic) ? " static " : " ") << ((ReturnType) ? ReturnType : "") << " " << FunctionName << "(";
1258
1259    bool FirstArg = true;
1260    for(ArgTy::const_iterator I = Args.begin();
1261        I != Args.end();
1262        I++)
1263    {
1264        if(!FirstArg)
1265            out() << ", ";
1266        else
1267            FirstArg = false;
1268
1269        out() << I->first << " " << I->second;
1270    }
1271
1272    out() << ")";
1273    startBlock();
1274
1275    return;
1276}
1277
1278void RSReflection::Context::endFunction() {
1279    endBlock();
1280    return;
1281}
1282
1283}   /* namespace slang */
1284