1 files changed, 275 insertions, 0 deletions

diff --git a/squirrel_3_0_1_stable/sqstdlib/sqstdblob.cpp b/squirrel_3_0_1_stable/sqstdlib/sqstdblob.cpp
new file mode 100644
index 000000000..11b593306
--- /dev/null
+++ b/squirrel_3_0_1_stable/sqstdlib/sqstdblob.cpp
@@ -0,0 +1,275 @@
+/* see copyright notice in squirrel.h */

+#include <new>

+#include <squirrel.h>

+#include <sqstdio.h>

+#include <string.h>

+#include <sqstdblob.h>

+#include "sqstdstream.h"

+#include "sqstdblobimpl.h"

+

+#define SQSTD_BLOB_TYPE_TAG (SQSTD_STREAM_TYPE_TAG | 0x00000002)

+

+//Blob

+

+

+#define SETUP_BLOB(v) \

+	SQBlob *self = NULL; \

+	{ if(SQ_FAILED(sq_getinstanceup(v,1,(SQUserPointer*)&self,(SQUserPointer)SQSTD_BLOB_TYPE_TAG))) \

+		return SQ_ERROR; }

+

+

+static SQInteger _blob_resize(HSQUIRRELVM v)

+{

+	SETUP_BLOB(v);

+	SQInteger size;

+	sq_getinteger(v,2,&size);

+	if(!self->Resize(size))

+		return sq_throwerror(v,_SC("resize failed"));

+	return 0;

+}

+

+static void __swap_dword(unsigned int *n)

+{

+	*n=(unsigned int)(((*n&0xFF000000)>>24)  |

+			((*n&0x00FF0000)>>8)  |

+			((*n&0x0000FF00)<<8)  |

+			((*n&0x000000FF)<<24));

+}

+

+static void __swap_word(unsigned short *n)

+{

+	*n=(unsigned short)((*n>>8)&0x00FF)| ((*n<<8)&0xFF00);

+}

+

+static SQInteger _blob_swap4(HSQUIRRELVM v)

+{

+	SETUP_BLOB(v);

+	SQInteger num=(self->Len()-(self->Len()%4))>>2;

+	unsigned int *t=(unsigned int *)self->GetBuf();

+	for(SQInteger i = 0; i < num; i++) {

+		__swap_dword(&t[i]);

+	}

+	return 0;

+}

+

+static SQInteger _blob_swap2(HSQUIRRELVM v)

+{

+	SETUP_BLOB(v);

+	SQInteger num=(self->Len()-(self->Len()%2))>>1;

+	unsigned short *t = (unsigned short *)self->GetBuf();

+	for(SQInteger i = 0; i < num; i++) {

+		__swap_word(&t[i]);

+	}

+	return 0;

+}

+

+static SQInteger _blob__set(HSQUIRRELVM v)

+{

+	SETUP_BLOB(v);

+	SQInteger idx,val;

+	sq_getinteger(v,2,&idx);

+	sq_getinteger(v,3,&val);

+	if(idx < 0 || idx >= self->Len())

+		return sq_throwerror(v,_SC("index out of range"));

+	((unsigned char *)self->GetBuf())[idx] = (unsigned char) val;

+	sq_push(v,3);

+	return 1;

+}

+

+static SQInteger _blob__get(HSQUIRRELVM v)

+{

+	SETUP_BLOB(v);

+	SQInteger idx;

+	sq_getinteger(v,2,&idx);

+	if(idx < 0 || idx >= self->Len())

+		return sq_throwerror(v,_SC("index out of range"));

+	sq_pushinteger(v,((unsigned char *)self->GetBuf())[idx]);

+	return 1;

+}

+

+static SQInteger _blob__nexti(HSQUIRRELVM v)

+{

+	SETUP_BLOB(v);

+	if(sq_gettype(v,2) == OT_NULL) {

+		sq_pushinteger(v, 0);

+		return 1;

+	}

+	SQInteger idx;

+	if(SQ_SUCCEEDED(sq_getinteger(v, 2, &idx))) {

+		if(idx+1 < self->Len()) {

+			sq_pushinteger(v, idx+1);

+			return 1;

+		}

+		sq_pushnull(v);

+		return 1;

+	}

+	return sq_throwerror(v,_SC("internal error (_nexti) wrong argument type"));

+}

+

+static SQInteger _blob__typeof(HSQUIRRELVM v)

+{

+	sq_pushstring(v,_SC("blob"),-1);

+	return 1;

+}

+

+static SQInteger _blob_releasehook(SQUserPointer p, SQInteger size)

+{

+	SQBlob *self = (SQBlob*)p;

+	self->~SQBlob();

+	sq_free(self,sizeof(SQBlob));

+	return 1;

+}

+

+static SQInteger _blob_constructor(HSQUIRRELVM v)

+{

+	SQInteger nparam = sq_gettop(v);

+	SQInteger size = 0;

+	if(nparam == 2) {

+		sq_getinteger(v, 2, &size);

+	}

+	if(size < 0) return sq_throwerror(v, _SC("cannot create blob with negative size"));

+	//SQBlob *b = new SQBlob(size);

+

+	SQBlob *b = new (sq_malloc(sizeof(SQBlob)))SQBlob(size);

+	if(SQ_FAILED(sq_setinstanceup(v,1,b))) {

+		b->~SQBlob();

+		sq_free(b,sizeof(SQBlob));

+		return sq_throwerror(v, _SC("cannot create blob"));

+	}

+	sq_setreleasehook(v,1,_blob_releasehook);

+	return 0;

+}

+

+static SQInteger _blob__cloned(HSQUIRRELVM v)

+{

+	SQBlob *other = NULL;

+	{ 

+		if(SQ_FAILED(sq_getinstanceup(v,2,(SQUserPointer*)&other,(SQUserPointer)SQSTD_BLOB_TYPE_TAG)))

+			return SQ_ERROR; 

+	}

+	//SQBlob *thisone = new SQBlob(other->Len());

+	SQBlob *thisone = new (sq_malloc(sizeof(SQBlob)))SQBlob(other->Len());

+	memcpy(thisone->GetBuf(),other->GetBuf(),thisone->Len());

+	if(SQ_FAILED(sq_setinstanceup(v,1,thisone))) {

+		thisone->~SQBlob();

+		sq_free(thisone,sizeof(SQBlob));

+		return sq_throwerror(v, _SC("cannot clone blob"));

+	}

+	sq_setreleasehook(v,1,_blob_releasehook);

+	return 0;

+}

+

+#define _DECL_BLOB_FUNC(name,nparams,typecheck) {_SC(#name),_blob_##name,nparams,typecheck}

+static SQRegFunction _blob_methods[] = {

+	_DECL_BLOB_FUNC(constructor,-1,_SC("xn")),

+	_DECL_BLOB_FUNC(resize,2,_SC("xn")),

+	_DECL_BLOB_FUNC(swap2,1,_SC("x")),

+	_DECL_BLOB_FUNC(swap4,1,_SC("x")),

+	_DECL_BLOB_FUNC(_set,3,_SC("xnn")),

+	_DECL_BLOB_FUNC(_get,2,_SC("xn")),

+	_DECL_BLOB_FUNC(_typeof,1,_SC("x")),

+	_DECL_BLOB_FUNC(_nexti,2,_SC("x")),

+	_DECL_BLOB_FUNC(_cloned,2,_SC("xx")),

+	{0,0,0,0}

+};

+

+

+

+//GLOBAL FUNCTIONS

+

+static SQInteger _g_blob_casti2f(HSQUIRRELVM v)

+{

+	SQInteger i;

+	sq_getinteger(v,2,&i);

+	sq_pushfloat(v,*((SQFloat *)&i));

+	return 1;

+}

+

+static SQInteger _g_blob_castf2i(HSQUIRRELVM v)

+{

+	SQFloat f;

+	sq_getfloat(v,2,&f);

+	sq_pushinteger(v,*((SQInteger *)&f));

+	return 1;

+}

+

+static SQInteger _g_blob_swap2(HSQUIRRELVM v)

+{

+	SQInteger i;

+	sq_getinteger(v,2,&i);

+	short s=(short)i;

+	sq_pushinteger(v,(s<<8)|((s>>8)&0x00FF));

+	return 1;

+}

+

+static SQInteger _g_blob_swap4(HSQUIRRELVM v)

+{

+	SQInteger i;

+	sq_getinteger(v,2,&i);

+	unsigned int t4 = (unsigned int)i;

+	__swap_dword(&t4);

+	sq_pushinteger(v,(SQInteger)t4);

+	return 1;

+}

+

+static SQInteger _g_blob_swapfloat(HSQUIRRELVM v)

+{

+	SQFloat f;

+	sq_getfloat(v,2,&f);

+	__swap_dword((unsigned int *)&f);

+	sq_pushfloat(v,f);

+	return 1;

+}

+

+#define _DECL_GLOBALBLOB_FUNC(name,nparams,typecheck) {_SC(#name),_g_blob_##name,nparams,typecheck}

+static SQRegFunction bloblib_funcs[]={

+	_DECL_GLOBALBLOB_FUNC(casti2f,2,_SC(".n")),

+	_DECL_GLOBALBLOB_FUNC(castf2i,2,_SC(".n")),

+	_DECL_GLOBALBLOB_FUNC(swap2,2,_SC(".n")),

+	_DECL_GLOBALBLOB_FUNC(swap4,2,_SC(".n")),

+	_DECL_GLOBALBLOB_FUNC(swapfloat,2,_SC(".n")),

+	{0,0}

+};

+

+SQRESULT sqstd_getblob(HSQUIRRELVM v,SQInteger idx,SQUserPointer *ptr)

+{

+	SQBlob *blob;

+	if(SQ_FAILED(sq_getinstanceup(v,idx,(SQUserPointer *)&blob,(SQUserPointer)SQSTD_BLOB_TYPE_TAG)))

+		return -1;

+	*ptr = blob->GetBuf();

+	return SQ_OK;

+}

+

+SQInteger sqstd_getblobsize(HSQUIRRELVM v,SQInteger idx)

+{

+	SQBlob *blob;

+	if(SQ_FAILED(sq_getinstanceup(v,idx,(SQUserPointer *)&blob,(SQUserPointer)SQSTD_BLOB_TYPE_TAG)))

+		return -1;

+	return blob->Len();

+}

+

+SQUserPointer sqstd_createblob(HSQUIRRELVM v, SQInteger size)

+{

+	SQInteger top = sq_gettop(v);

+	sq_pushregistrytable(v);

+	sq_pushstring(v,_SC("std_blob"),-1);

+	if(SQ_SUCCEEDED(sq_get(v,-2))) {

+		sq_remove(v,-2); //removes the registry

+		sq_push(v,1); // push the this

+		sq_pushinteger(v,size); //size

+		SQBlob *blob = NULL;

+		if(SQ_SUCCEEDED(sq_call(v,2,SQTrue,SQFalse))

+			&& SQ_SUCCEEDED(sq_getinstanceup(v,-1,(SQUserPointer *)&blob,(SQUserPointer)SQSTD_BLOB_TYPE_TAG))) {

+			sq_remove(v,-2);

+			return blob->GetBuf();

+		}

+	}

+	sq_settop(v,top);

+	return NULL;

+}

+

+SQRESULT sqstd_register_bloblib(HSQUIRRELVM v)

+{

+	return declare_stream(v,_SC("blob"),(SQUserPointer)SQSTD_BLOB_TYPE_TAG,_SC("std_blob"),_blob_methods,bloblib_funcs);

+}

+