284 lines
7.6 KiB
C++
284 lines
7.6 KiB
C++
/* see copyright notice in rabbit.hpp */
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#include <new>
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#include <rabbit/rabbit.hpp>
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#include <rabbit-std/sqstdio.hpp>
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#include <string.h>
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#include <rabbit-std/sqstdblob.hpp>
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#include <rabbit-std/sqstdstream.hpp>
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#include <rabbit-std/sqstdblobimpl.hpp>
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#define SQSTD_BLOB_TYPE_TAG ((uint64_t)(SQSTD_STREAM_TYPE_TAG | 0x00000002))
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//Blob
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#define SETUP_BLOB(v) \
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rabbit::std::Blob *self = NULL; \
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{ if(SQ_FAILED(rabbit::sq_getinstanceup(v,1,(rabbit::UserPointer*)&self,(rabbit::UserPointer)SQSTD_BLOB_TYPE_TAG))) \
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return rabbit::sq_throwerror(v,"invalid type tag"); } \
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if(!self || !self->IsValid()) \
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return rabbit::sq_throwerror(v,"the blob is invalid");
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static int64_t _blob_resize(rabbit::VirtualMachine* v)
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{
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SETUP_BLOB(v);
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int64_t size;
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rabbit::sq_getinteger(v,2,&size);
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if(!self->resize(size))
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return rabbit::sq_throwerror(v,"resize failed");
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return 0;
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}
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static void __swap_dword(unsigned int *n)
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{
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*n=(unsigned int)(((*n&0xFF000000)>>24) |
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((*n&0x00FF0000)>>8) |
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((*n&0x0000FF00)<<8) |
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((*n&0x000000FF)<<24));
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}
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static void __swap_word(unsigned short *n)
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{
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*n=(unsigned short)((*n>>8)&0x00FF)| ((*n<<8)&0xFF00);
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}
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static int64_t _blob_swap4(rabbit::VirtualMachine* v)
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{
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SETUP_BLOB(v);
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int64_t num=(self->Len()-(self->Len()%4))>>2;
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unsigned int *t=(unsigned int *)self->getBuf();
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for(int64_t i = 0; i < num; i++) {
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__swap_dword(&t[i]);
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}
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return 0;
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}
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static int64_t _blob_swap2(rabbit::VirtualMachine* v)
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{
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SETUP_BLOB(v);
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int64_t num=(self->Len()-(self->Len()%2))>>1;
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unsigned short *t = (unsigned short *)self->getBuf();
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for(int64_t i = 0; i < num; i++) {
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__swap_word(&t[i]);
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}
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return 0;
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}
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static int64_t _blob__set(rabbit::VirtualMachine* v)
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{
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SETUP_BLOB(v);
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int64_t idx,val;
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rabbit::sq_getinteger(v,2,&idx);
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rabbit::sq_getinteger(v,3,&val);
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if(idx < 0 || idx >= self->Len())
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return rabbit::sq_throwerror(v,"index out of range");
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((unsigned char *)self->getBuf())[idx] = (unsigned char) val;
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rabbit::sq_push(v,3);
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return 1;
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}
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static int64_t _blob__get(rabbit::VirtualMachine* v)
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{
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SETUP_BLOB(v);
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int64_t idx;
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if ((rabbit::sq_gettype(v, 2) & SQOBJECT_NUMERIC) == 0)
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{
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rabbit::sq_pushnull(v);
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return rabbit::sq_throwobject(v);
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}
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rabbit::sq_getinteger(v,2,&idx);
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if(idx < 0 || idx >= self->Len())
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return rabbit::sq_throwerror(v,"index out of range");
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rabbit::sq_pushinteger(v,((unsigned char *)self->getBuf())[idx]);
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return 1;
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}
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static int64_t _blob__nexti(rabbit::VirtualMachine* v)
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{
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SETUP_BLOB(v);
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if(rabbit::sq_gettype(v,2) == rabbit::OT_NULL) {
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rabbit::sq_pushinteger(v, 0);
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return 1;
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}
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int64_t idx;
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if(SQ_SUCCEEDED(rabbit::sq_getinteger(v, 2, &idx))) {
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if(idx+1 < self->Len()) {
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rabbit::sq_pushinteger(v, idx+1);
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return 1;
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}
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rabbit::sq_pushnull(v);
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return 1;
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}
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return rabbit::sq_throwerror(v,"internal error (_nexti) wrong argument type");
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}
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static int64_t _blob__typeof(rabbit::VirtualMachine* v)
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{
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rabbit::sq_pushstring(v,"blob",-1);
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return 1;
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}
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static int64_t _blob_releasehook(rabbit::UserPointer p, int64_t SQ_UNUSED_ARG(size))
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{
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rabbit::std::Blob *self = (rabbit::std::Blob*)p;
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self->~Blob();
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rabbit::sq_free(self,sizeof(rabbit::std::Blob));
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return 1;
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}
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static int64_t _blob_constructor(rabbit::VirtualMachine* v)
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{
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int64_t nparam = rabbit::sq_gettop(v);
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int64_t size = 0;
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if(nparam == 2) {
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rabbit::sq_getinteger(v, 2, &size);
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}
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if(size < 0) return rabbit::sq_throwerror(v, "cannot create blob with negative size");
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//rabbit::std::Blob *b = new rabbit::std::Blob(size);
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rabbit::std::Blob *b = new (rabbit::sq_malloc(sizeof(rabbit::std::Blob)))rabbit::std::Blob(size);
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if(SQ_FAILED(rabbit::sq_setinstanceup(v,1,b))) {
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b->~Blob();
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rabbit::sq_free(b,sizeof(rabbit::std::Blob));
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return rabbit::sq_throwerror(v, "cannot create blob");
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}
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rabbit::sq_setreleasehook(v,1,_blob_releasehook);
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return 0;
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}
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static int64_t _blob__cloned(rabbit::VirtualMachine* v)
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{
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rabbit::std::Blob *other = NULL;
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{
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if(SQ_FAILED(rabbit::sq_getinstanceup(v,2,(rabbit::UserPointer*)&other,(rabbit::UserPointer)SQSTD_BLOB_TYPE_TAG)))
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return SQ_ERROR;
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}
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//rabbit::std::Blob *thisone = new rabbit::std::Blob(other->Len());
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rabbit::std::Blob *thisone = new (rabbit::sq_malloc(sizeof(rabbit::std::Blob)))rabbit::std::Blob(other->Len());
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memcpy(thisone->getBuf(),other->getBuf(),thisone->Len());
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if(SQ_FAILED(rabbit::sq_setinstanceup(v,1,thisone))) {
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thisone->~Blob();
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rabbit::sq_free(thisone,sizeof(rabbit::std::Blob));
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return rabbit::sq_throwerror(v, "cannot clone blob");
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}
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rabbit::sq_setreleasehook(v,1,_blob_releasehook);
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return 0;
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}
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#define _DECL_BLOB_FUNC(name,nparams,typecheck) {#name,_blob_##name,nparams,typecheck}
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static const rabbit::RegFunction _blob_methods[] = {
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_DECL_BLOB_FUNC(constructor,-1,"xn"),
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_DECL_BLOB_FUNC(resize,2,"xn"),
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_DECL_BLOB_FUNC(swap2,1,"x"),
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_DECL_BLOB_FUNC(swap4,1,"x"),
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_DECL_BLOB_FUNC(_set,3,"xnn"),
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_DECL_BLOB_FUNC(_get,2,"x."),
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_DECL_BLOB_FUNC(_typeof,1,"x"),
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_DECL_BLOB_FUNC(_nexti,2,"x"),
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_DECL_BLOB_FUNC(_cloned,2,"xx"),
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{NULL,(SQFUNCTION)0,0,NULL}
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};
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//GLOBAL FUNCTIONS
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static int64_t _g_blob_casti2f(rabbit::VirtualMachine* v)
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{
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int64_t i;
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rabbit::sq_getinteger(v,2,&i);
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rabbit::sq_pushfloat(v,*((const float_t *)&i));
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return 1;
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}
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static int64_t _g_blob_castf2i(rabbit::VirtualMachine* v)
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{
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float_t f;
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rabbit::sq_getfloat(v,2,&f);
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rabbit::sq_pushinteger(v,*((const int64_t *)&f));
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return 1;
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}
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static int64_t _g_blob_swap2(rabbit::VirtualMachine* v)
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{
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int64_t i;
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rabbit::sq_getinteger(v,2,&i);
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short s=(short)i;
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rabbit::sq_pushinteger(v,(s<<8)|((s>>8)&0x00FF));
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return 1;
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}
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static int64_t _g_blob_swap4(rabbit::VirtualMachine* v)
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{
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int64_t i;
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rabbit::sq_getinteger(v,2,&i);
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unsigned int t4 = (unsigned int)i;
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__swap_dword(&t4);
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rabbit::sq_pushinteger(v,(int64_t)t4);
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return 1;
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}
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static int64_t _g_blob_swapfloat(rabbit::VirtualMachine* v)
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{
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float_t f;
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rabbit::sq_getfloat(v,2,&f);
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__swap_dword((unsigned int *)&f);
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rabbit::sq_pushfloat(v,f);
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return 1;
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}
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#define _DECL_GLOBALBLOB_FUNC(name,nparams,typecheck) {#name,_g_blob_##name,nparams,typecheck}
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static const rabbit::RegFunction bloblib_funcs[]={
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_DECL_GLOBALBLOB_FUNC(casti2f,2,".n"),
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_DECL_GLOBALBLOB_FUNC(castf2i,2,".n"),
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_DECL_GLOBALBLOB_FUNC(swap2,2,".n"),
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_DECL_GLOBALBLOB_FUNC(swap4,2,".n"),
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_DECL_GLOBALBLOB_FUNC(swapfloat,2,".n"),
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{NULL,(SQFUNCTION)0,0,NULL}
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};
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rabbit::Result rabbit::std::getblob(rabbit::VirtualMachine* v,int64_t idx,rabbit::UserPointer *ptr)
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{
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rabbit::std::Blob *blob;
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if(SQ_FAILED(rabbit::sq_getinstanceup(v,idx,(rabbit::UserPointer *)&blob,(rabbit::UserPointer)SQSTD_BLOB_TYPE_TAG)))
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return -1;
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*ptr = blob->getBuf();
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return SQ_OK;
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}
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int64_t rabbit::std::getblobsize(rabbit::VirtualMachine* v,int64_t idx)
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{
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rabbit::std::Blob *blob;
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if(SQ_FAILED(rabbit::sq_getinstanceup(v,idx,(rabbit::UserPointer *)&blob,(rabbit::UserPointer)SQSTD_BLOB_TYPE_TAG)))
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return -1;
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return blob->Len();
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}
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rabbit::UserPointer rabbit::std::createblob(rabbit::VirtualMachine* v, int64_t size)
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{
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int64_t top = rabbit::sq_gettop(v);
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rabbit::sq_pushregistrytable(v);
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rabbit::sq_pushstring(v,"std_blob",-1);
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if(SQ_SUCCEEDED(rabbit::sq_get(v,-2))) {
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rabbit::sq_remove(v,-2); //removes the registry
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rabbit::sq_push(v,1); // push the this
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rabbit::sq_pushinteger(v,size); //size
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rabbit::std::Blob *blob = NULL;
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if(SQ_SUCCEEDED(rabbit::sq_call(v,2,SQTrue,SQFalse))
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&& SQ_SUCCEEDED(rabbit::sq_getinstanceup(v,-1,(rabbit::UserPointer *)&blob,(rabbit::UserPointer)SQSTD_BLOB_TYPE_TAG))) {
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rabbit::sq_remove(v,-2);
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return blob->getBuf();
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}
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}
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rabbit::sq_settop(v,top);
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return NULL;
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}
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rabbit::Result rabbit::std::register_bloblib(rabbit::VirtualMachine* v)
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{
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return declare_stream(v,"blob",(rabbit::UserPointer)SQSTD_BLOB_TYPE_TAG,"std_blob",_blob_methods,bloblib_funcs);
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}
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