added boxtags for convenience

added boxtags for convenience

' Blue Moon
' Memory allocator/garbage collector
' this is a generational three-colour mark/compact collector

' notes:

' - a basic Lua value is represented as a NaN-box (i.e. a double, unless it's a NaN in which case there's a pointer in the significand)

' - objects are allocated in newSpc, Cheney'd over to cpySpc when it runs out; the Eden spaces are 8MB each
' - when less than .edenThreshold remains in cpySpc after a scavenge, objects held from oldSpc are promoted
' - when more than .sizeThreshold has been promoted or less than .edenThreshold still remains, a full GC runs
'   this scan updates usage statistics for each page
'   the "worst" N pages are then compacted; if total usage is still poor, mark for another compact after next scavenge
'   the rest of Eden is then promoted
' - fallback to compacting in one go if usage is catastrophic/increments aren't keeping up
' - roots are obtained from the gcroots list, and the stack

' - before compacting/discarding, the space is scanned for objects with finalizers which are resurrected into newSpc and put on toFinalize
' - during a FULL collection, weak tables are listed in .weakTables rather than colouring elems, then weakscanned before compaction

' - the stack is an 8M block with the last page protected
' - stack frames use this format:
'    [ ret ip ][ prev base ][[ 16b frame sz ][ 16b var ofs ]][ func obj ][ ip ][ argv ][ retv ][[ 16b argc ][ 16b retc ]][ upv0 | upv1 | ... ][ v0 | v1 | ... ][ tmp... ]
'   the upvar slots, var slots, and temp slots beyond are all 64-bit NaN-boxes
'   the preceding slots are 32-bit words except otherwise shown

' - pages in oldPtrSpc use this format:
'    [[[  0..256 metadata  ]  ..16K dirty bitmap  ]  ..1M allocated objects  ]
'   each 64-byte potential NaN-box in the object-space has a corresponding dirty bit that is set if it points to newSpc
'   a metamap in the metadata in turn marks dirty sectors of the bitmap, for reduced scanning
'   metadata also contains allocation pointer and used space total

' - codeSpace stores executable instruction buffers for Lua functions (bytecode is allocated directly into oldStrSpc)

' - bigSpc is a simple list of conventionally-allocated objects that don't fit on a 1M page

' - objects use this layout:
'    [ 64b header: [ 32b size ][ 16b type tag ][ 8b colour ][ 1b hasFinalizer ][ 2b weak keys, values ] ][ N * 64b data area... ]
'   size includes header. for moved objects the second 32b are replaced by a forwarding pointer
'   pointers in general are to the data area, skipping header

' - data types are:  nil, boolean, number, string, closure, natfun, userdata, thread, table ; upvar, tablearray, tablehash, bytecode
'   nil/boolean/number/natfun are value types and need no allocation
'   string uses this structure:
'    [H][ 32b length ][ 32b hash ][ ceil(length/4) * 64b chars... ]
'   closure uses this structure:
'    [H][ 32b bytecode ptr ][32b][ N * 32b upvar ptrs... ] (N rounded up to 2 for alignment)
'   userdata uses this structure:
'    [H][ 32b metatable ][ 32b value ]
'   thread uses this structure:
'    [H][
'   table uses this structure:
'    [H][ 32b metatable ][32b][ 32b hashpart ptr + 8 ][ 32b arraypart ptr + 8 ]
'   tablearray uses this structure:
'    [H][ 32b len ][ 32b maxlen ][ N * 64b values... ]
'   tablehash uses this structure:
'    [H][ 32b count ][ 32b log2(maxlen) ][ N * [ 64b key ][ 64b value ]... ]
'   upvar uses this structure:
'    [H][ 64b value ]
'   bytecode uses this structure:
'    [H][

SuperStrict

Import "blueerror.bmx"
Import "bluememory.c"

Private
Extern
	Function PageAlloc:Byte Ptr(size:Int) = "bluemoon_mmap"
	Function PageSetRW:Int(p:Byte Ptr, sz:Int) = "bluemoon_mprotect_rw"
	Function PageSetRWX:Int(p:Byte Ptr, sz:Int) = "bluemoon_mprotect_rwx"
	Function PageSetProtected:Int(p:Byte Ptr, sz:Int) = "bluemoon_mprotect_none"
	Function PageFree:Int(p:Byte Ptr, sz:Int) = "bluemoon_munmap"
End Extern
Public

Type BlueTypeTag Final
	Const NUM:Int = 0, NIL:Int = 1, BOOL:Int = 1 Shl 1, STR:Int = 1 Shl 2, FUN:Int = 1 Shl 3
	Const NATFUN:Int = 1 Shl 4, USR:Int = 1 Shl 5, THR:Int = 1 Shl 6, TBL:Int = 1 Shl 7
	Const UPV:Int = 1 Shl 8, ARR:Int = 1 Shl 9, HASH:Int = 1 Shl 10, BCODE:Int = 1 Shl 11

	Const NANBOX:Int = Int(2^11 - 1) Shl 20, NANBOX_CHK:Int = NANBOX | (1 Shl 19)	'test against upper word (and that it's not a genuine NaN)

	Const NILBOX:Int = NANBOX | NIL, BOOLBOX:Int = NANBOX | BOOL, STRBOX:Int = NANBOX | STR
	Const FUNBOX:Int = NANBOX | FUN, NATFUNBOX:Int = NANBOX | NATFUN, ANYFUNBOX:Int = NANBOX | FUN | NATFUN
	Const USRBOX:Int = NANBOX | USR, THRBOX:Int = NANBOX | THR, TBLBOX:Int = NANBOX | TBL
End Type

Type BlueVMMemory Final
	Const PAGESZ:Int = 1048576, PAGEBITMAPSZ:Int = 16384, PAGEMETASZ:Int = 256
	Const EDENSIZE:Int = 8 * PAGESZ, STACKSZ:Int = 8 * PAGESZ, STACKPROTECT:Int = 4096 * 3, BIGOBJECTSZ:Int = 500000
	Const STACKFRAMESZ:Int = 8 * 4, BYTECODESZ:Int = 8 * 4

	Const NIL:Long = Long(BlueTypeTag.NILBOX) * $100000000:Long	'WHY CAN'T I SHIFT LONGS ARGH

	Field gcroots:BlueGCNode, stack:Byte Ptr
	Field newSpace:Byte Ptr, cpySpace:Byte Ptr, oldPtrSpace:Byte Ptr[], oldStrSpace:Byte Ptr[], bigSpace:Byte Ptr[]
	Field toFinalize:BlueGCNode, weakTables:BlueGCNode
	Field codeSpace:Byte Ptr[], returnToNative:Int Ptr
	Field bytecodes:Byte Ptr[], kstrings:Byte Ptr[]

	Field memAlloced:Int
	Field edenThreshold:Int, sizeThreshold:Int
	Field newPtr:Int

	Function AlignedAlloc:Byte Ptr(size:Int, align:Int)	'abuse mmap/munmap to get greater-than-4K alignments
		?Not x86
		RuntimeError "The Blue Moon memory system does not support your platform (x86-32 only at this time)"
		?
		Local mem:Byte Ptr = PageAlloc(size + align)
		If Not mem Then Throw BlueInterpretError.Make("unable to allocate enough memory for system")

		' this is where it starts to get unpleasantly x86-32 specific
		Local iMem:Int = Int(mem), offset:Int = iMem Mod align
		If offset
			Local preceding:Int = align - offset
			PageFree(mem, preceding) ; mem :+ preceding
			PageFree(mem + size, offset)	'so we free the surrounding chunks of mem. that aren't aligned, and keep the middle
		Else
			PageFree(mem + size, align)
		EndIf

		Return mem
	End Function

	Method New()
		gcroots = New BlueGCNode	'dummy header
		stack = AlignedAlloc(STACKSZ, PAGESZ)
		PageSetProtected(stack + STACKSZ - STACKPROTECT, STACKPROTECT)	' add protection to end of stack
		newSpace = AlignedAlloc(EDENSIZE, PAGESZ) ; cpySpace = AlignedAlloc(EDENSIZE, PAGESZ)
		newPtr = 0

		AddCodePage() ; returnToNative = Int Ptr(codeSpace[0]) + 1
		AddPage(oldStrSpace, PAGEMETASZ)
		AddPage(oldPtrSpace, PAGEBITMAPSZ)
	End Method
	Method Delete()
		' unmap a bunch of stuff
		' free a bunch of other stuff
	End Method

	Method Write(slot:Long Ptr, val:Long)	'write barrier around old/big-space
		'implement it here
		slot[0] = val
	End Method

	Method Collect()
	End Method

	Method AllocTable:Byte Ptr(meta:Byte Ptr)
		Local ret:Byte Ptr = AllocObject(16, BlueTypeTag.TBL)
		Byte Ptr Ptr(ret)[0] = meta
		Int Ptr(ret)[2] = 0 ; Int Ptr(ret)[3] = 0
		Return ret
	End Method
	Method AllocClosure:Byte Ptr(bc:Byte Ptr, upvars:Int)	'already aligned
		Local ret:Byte Ptr = AllocObject(8 + upvars * 4, BlueTypeTag.FUN)
		Byte Ptr Ptr(ret)[0] = bc
		Return ret
	End Method
	Method AllocString:Byte Ptr(size:Int, charp:Short Ptr)
		Local sz:Int = size
		If sz Mod 4 Then sz :+ 4 - sz Mod 4	'align properly
		Local ret:Byte Ptr = AllocObject(8 + sz * 2, BlueTypeTag.STR), destp:Short Ptr = Short Ptr(ret + 8), hash:Int = 5381
		For Local c:Int = 0 Until size	'fill the string and compute hash in one go
			destp[c] = charp[c]
			hash = (hash * 33) ~ charp[c]	'djb2
		Next
		Int Ptr(ret)[0] = size ; Int Ptr(ret)[1] = hash
		Return ret
	End Method
	Method AllocUserdata:Byte Ptr(meta:Byte Ptr, val:Byte Ptr)
		Local ret:Byte Ptr = AllocObject(8, BlueTypeTag.USR)
		Byte Ptr Ptr(ret)[0] = meta ; Byte Ptr Ptr(ret)[1] = val
		Return ret
	End Method
	Method AllocThread()
	End Method

	Method AllocConstant:Byte Ptr(size:Int, charp:Short Ptr)	'string constants (the only other kind are doubles)
		Local hash:Int = 5381
		For Local c:Int = 0 Until size	'do this first so we can check for duplicates easily
			hash = (hash * 33) ~ charp[c]	'djb2
		Next
		For Local k:Int = 0 Until kstrings.Length
			If hash = Int Ptr(kstrings[k])[3] And size = Int Ptr(kstrings[k])[2]
				Local eq:Int = True
				For Local ch:Int = 0 Until size
					If charp[ch] <> Short Ptr(kstrings[k] + 16)[ch] Then eq = False ; Exit
				Next
				If eq Then Return kstrings[k] + 8	'if it already exists, share it
			EndIf
		Next

		Local ret:Byte Ptr = MemAlloc(8 + 8 + size * 2), destp:Short Ptr = Short Ptr(ret + 16)
		Int Ptr(ret)[0] = (8 + 8 + size * 2) ; Short Ptr(ret + 4)[0] = BlueTypeTag.STR	'set colour too?
		Int Ptr(ret)[2] = size ; Int Ptr(ret)[3] = hash
		For Local ch:Int = 0 Until size
			destp[ch] = charp[ch]
		Next

		kstrings :+ [ret]
		Return ret + 8
	End Method
	Method AllocBytecode:Byte Ptr(upvars:Int, kcount:Int, icount:Int)
		Local ret:Byte Ptr = MemAlloc(4 * BYTECODESZ + 8 * kcount + 8 * icount + 8 * upvars)	'not here to do malloc's job for it
		bytecodes :+ [ret]
		Return ret
	End Method
	Method MaxStringToVal:Long(s:String)	'allocates as a constant; use sparingly
		Local ch:Short Ptr = s.ToWString(), ret:Byte Ptr = AllocConstant(s.Length, ch), val:Long
		MemFree(ch)
		Int Ptr(Varptr(val))[0] = Int(ret) ; Int Ptr(Varptr(val))[1] = BlueTypeTag.NANBOX | BlueTypeTag.STR
		Return val
	End Method
	Method ValToMaxString:String(val:Long)
		'insert type check here (assume string for now)
		Local obj:Byte Ptr = Byte Ptr(Int(val))
		Local chars:Short[Int Ptr(obj)[0]]
		For Local c:Int = 0 Until chars.Length
			chars[c] = Short Ptr(obj + 8)[c]
		Next
		Return String.FromShorts(Short Ptr(chars), chars.Length)
	End Method
	Method RootObj:BlueGCNode(o:Byte Ptr)
		gcroots.nx = BlueGCNode.Insert(o, gcroots, gcroots.nx) ; Return gcroots.nx
	End Method

	Method AddCodePage()
		codeSpace = [AlignedAlloc(2 * PAGESZ, PAGESZ)] + codeSpace
		PageSetRWX(codeSpace[0], PAGESZ)
		Int Ptr(codeSpace[0])[0] = PAGEMETASZ
	End Method
	Method AddPage:Byte Ptr(space:Byte Ptr[] Var, init:Int, exec:Int = False)
		Local p:Byte Ptr = AlignedAlloc(PAGESZ, PAGESZ)	'x86: assume this returns zero-initialized result already
		space = [p] + space ; Int Ptr(p)[0] = init
		If exec Then PageSetRWX(space[0], PAGESZ)
		Return p
	End Method
'	Method HeaderSize:Int(space:Byte Ptr[])
'		Select space
'			Case oldPtrSpace ; Return PAGEBITMAPSZ
'			Default          ; Return PAGEMETASZ
'		End Select
'	End Method

	Method AllocCodeBlock:Byte Ptr(sz:Int)	'this returns the requested size, allocating it externally if necessary
		Local page:Byte Ptr = codeSpace[0], pNewPtr:Int = Int Ptr(page)[0]
		If pNewPtr + sz > PAGESZ
			RuntimeError "not yet implemented"
		Else
			Int Ptr(page)[0] :+ sz
			Return page + pNewPtr
		EndIf
	End Method

	Method AllocObject:Byte Ptr(sz:Int, tag:Short)
		sz :+ 8 ; Local ret:Byte Ptr
		If sz < BIGOBJECTSZ
			If newPtr + sz > EDENSIZE Then Collect()
			ret = newSpace + newPtr; newPtr :+ sz
		Else
			ret = MemAlloc(sz)
			If Not ret Then Throw BlueInterpretError.Make("unable to allocate memory for object")
			bigSpace :+ [ret]
			' track as part of allocated memory
		EndIf
		Int Ptr(ret)[0] = sz ; Short Ptr(ret + 4)[0] = tag
		Return ret + 8
	End Method

	Function PtrToVal:Long(p:Byte Ptr, tag:Short)
		Local ret:Long, rp:Int Ptr = Int Ptr(Varptr(ret))
		rp[0] = Int(p) ; rp[1] = BlueTypeTag.NANBOX | tag
		Return ret
	End Function
	Function ValToPtr:Byte Ptr(v:Long)
		Local vp:Byte Ptr Ptr = Byte Ptr Ptr(Varptr(v))
		Return vp[0]
	End Function
End Type

Type BlueGCNode
	Field pv:BlueGCNode, nx:BlueGCNode, val:Byte Ptr
	Method Remove()
		If pv Then pv.nx = nx ; pv = Null
		If nx Then nx.pv = pv ; nx = Null
	End Method

	Function Cons:BlueGCNode(val:Byte Ptr, nx:BlueGCNode)
		Local n:BlueGCNode = New Self
		n.nx = nx ; n.val = val
		Return n
	End Function
	Function Insert:BlueGCNode(val:Byte Ptr, pv:BlueGCNode, nx:BlueGCNode)
		Local n:BlueGCNode = New Self
		n.pv = pv ; n.nx = nx ; n.val = val
		Return n
	End Function
End Type

Private

Public

' Blue Moon
' Memory allocator/garbage collector
' this is a generational three-colour mark/compact collector

' notes:

' - a basic Lua value is represented as a NaN-box (i.e. a double, unless it's a NaN in which case there's a pointer in the significand)

' - objects are allocated in newSpc, Cheney'd over to cpySpc when it runs out; the Eden spaces are 8MB each
' - when less than .edenThreshold remains in cpySpc after a scavenge, objects held from oldSpc are promoted
' - when more than .sizeThreshold has been promoted or less than .edenThreshold still remains, a full GC runs
'   this scan updates usage statistics for each page
'   the "worst" N pages are then compacted; if total usage is still poor, mark for another compact after next scavenge
'   the rest of Eden is then promoted
' - fallback to compacting in one go if usage is catastrophic/increments aren't keeping up
' - roots are obtained from the gcroots list, and the stack

' - before compacting/discarding, the space is scanned for objects with finalizers which are resurrected into newSpc and put on toFinalize
' - during a FULL collection, weak tables are listed in .weakTables rather than colouring elems, then weakscanned before compaction

' - the stack is an 8M block with the last page protected
' - stack frames use this format:
'    [ ret ip ][ prev base ][[ 16b frame sz ][ 16b var ofs ]][ func obj ][ ip ][ argv ][ retv ][[ 16b argc ][ 16b retc ]][ upv0 | upv1 | ... ][ v0 | v1 | ... ][ tmp... ]
'   the upvar slots, var slots, and temp slots beyond are all 64-bit NaN-boxes
'   the preceding slots are 32-bit words except otherwise shown

' - pages in oldPtrSpc use this format:
'    [[[  0..256 metadata  ]  ..16K dirty bitmap  ]  ..1M allocated objects  ]
'   each 64-byte potential NaN-box in the object-space has a corresponding dirty bit that is set if it points to newSpc
'   a metamap in the metadata in turn marks dirty sectors of the bitmap, for reduced scanning
'   metadata also contains allocation pointer and used space total

' - codeSpace stores executable instruction buffers for Lua functions (bytecode is allocated directly into oldStrSpc)

' - bigSpc is a simple list of conventionally-allocated objects that don't fit on a 1M page

' - objects use this layout:
'    [ 64b header: [ 32b size ][ 16b type tag ][ 8b colour ][ 1b hasFinalizer ][ 2b weak keys, values ] ][ N * 64b data area... ]
'   size includes header. for moved objects the second 32b are replaced by a forwarding pointer
'   pointers in general are to the data area, skipping header

' - data types are:  nil, boolean, number, string, closure, natfun, userdata, thread, table ; upvar, tablearray, tablehash, bytecode
'   nil/boolean/number/natfun are value types and need no allocation
'   string uses this structure:
'    [H][ 32b length ][ 32b hash ][ ceil(length/4) * 64b chars... ]
'   closure uses this structure:
'    [H][ 32b bytecode ptr ][32b][ N * 32b upvar ptrs... ] (N rounded up to 2 for alignment)
'   userdata uses this structure:
'    [H][ 32b metatable ][ 32b value ]
'   thread uses this structure:
'    [H][
'   table uses this structure:
'    [H][ 32b metatable ][32b][ 32b hashpart ptr + 8 ][ 32b arraypart ptr + 8 ]
'   tablearray uses this structure:
'    [H][ 32b len ][ 32b maxlen ][ N * 64b values... ]
'   tablehash uses this structure:
'    [H][ 32b count ][ 32b log2(maxlen) ][ N * [ 64b key ][ 64b value ]... ]
'   upvar uses this structure:
'    [H][ 64b value ]
'   bytecode uses this structure:
'    [H][

SuperStrict

Import "blueerror.bmx"
Import "bluememory.c"

Private
Extern
	Function PageAlloc:Byte Ptr(size:Int) = "bluemoon_mmap"
	Function PageSetRW:Int(p:Byte Ptr, sz:Int) = "bluemoon_mprotect_rw"
	Function PageSetRWX:Int(p:Byte Ptr, sz:Int) = "bluemoon_mprotect_rwx"
	Function PageSetProtected:Int(p:Byte Ptr, sz:Int) = "bluemoon_mprotect_none"
	Function PageFree:Int(p:Byte Ptr, sz:Int) = "bluemoon_munmap"
End Extern
Public

Type BlueTypeTag Final
	Const NUM:Int = 0, NIL:Int = 1, BOOL:Int = 1 Shl 1, STR:Int = 1 Shl 2, FUN:Int = 1 Shl 3
	Const NATFUN:Int = 1 Shl 4, USR:Int = 1 Shl 5, THR:Int = 1 Shl 6, TBL:Int = 1 Shl 7
	Const UPV:Int = 1 Shl 8, ARR:Int = 1 Shl 9, HASH:Int = 1 Shl 10, BCODE:Int = 1 Shl 11

	Const NANBOX:Int = Int(2^11 - 1) Shl 20, NANBOX_CHK:Int = NANBOX | (1 Shl 19)	'test against upper word (and that it's not a genuine NaN)
End Type

Type BlueVMMemory Final
	Const PAGESZ:Int = 1048576, PAGEBITMAPSZ:Int = 16384, PAGEMETASZ:Int = 256
	Const EDENSIZE:Int = 8 * PAGESZ, STACKSZ:Int = 8 * PAGESZ, STACKPROTECT:Int = 4096 * 3, BIGOBJECTSZ:Int = 500000
	Const STACKFRAMESZ:Int = 8 * 4, BYTECODESZ:Int = 8 * 4

	Const NIL:Long = Long(BlueTypeTag.NANBOX | BlueTypeTag.NIL) * $100000000:Long	'WHY CAN'T I SHIFT LONGS ARGH

	Field gcroots:BlueGCNode, stack:Byte Ptr
	Field newSpace:Byte Ptr, cpySpace:Byte Ptr, oldPtrSpace:Byte Ptr[], oldStrSpace:Byte Ptr[], bigSpace:Byte Ptr[]
	Field toFinalize:BlueGCNode, weakTables:BlueGCNode
	Field codeSpace:Byte Ptr[], returnToNative:Int Ptr
	Field bytecodes:Byte Ptr[], kstrings:Byte Ptr[]

	Field memAlloced:Int
	Field edenThreshold:Int, sizeThreshold:Int
	Field newPtr:Int

	Function AlignedAlloc:Byte Ptr(size:Int, align:Int)	'abuse mmap/munmap to get greater-than-4K alignments
		?Not x86
		RuntimeError "The Blue Moon memory system does not support your platform (x86-32 only at this time)"
		?
		Local mem:Byte Ptr = PageAlloc(size + align)
		If Not mem Then Throw BlueInterpretError.Make("unable to allocate enough memory for system")

		' this is where it starts to get unpleasantly x86-32 specific
		Local iMem:Int = Int(mem), offset:Int = iMem Mod align
		If offset
			Local preceding:Int = align - offset
			PageFree(mem, preceding) ; mem :+ preceding
			PageFree(mem + size, offset)	'so we free the surrounding chunks of mem. that aren't aligned, and keep the middle
		Else
			PageFree(mem + size, align)
		EndIf

		Return mem
	End Function

	Method New()
		gcroots = New BlueGCNode	'dummy header
		stack = AlignedAlloc(STACKSZ, PAGESZ)
		PageSetProtected(stack + STACKSZ - STACKPROTECT, STACKPROTECT)	' add protection to end of stack
		newSpace = AlignedAlloc(EDENSIZE, PAGESZ) ; cpySpace = AlignedAlloc(EDENSIZE, PAGESZ)
		newPtr = 0

		AddCodePage() ; returnToNative = Int Ptr(codeSpace[0]) + 1
		AddPage(oldStrSpace, PAGEMETASZ)
		AddPage(oldPtrSpace, PAGEBITMAPSZ)
	End Method
	Method Delete()
		' unmap a bunch of stuff
		' free a bunch of other stuff
	End Method

	Method Write(slot:Long Ptr, val:Long)	'write barrier around old/big-space
		'implement it here
		slot[0] = val
	End Method

	Method Collect()
	End Method

	Method AllocTable:Byte Ptr(meta:Byte Ptr)
		Local ret:Byte Ptr = AllocObject(16, BlueTypeTag.TBL)
		Byte Ptr Ptr(ret)[0] = meta
		Int Ptr(ret)[2] = 0 ; Int Ptr(ret)[3] = 0
		Return ret
	End Method
	Method AllocClosure:Byte Ptr(bc:Byte Ptr, upvars:Int)	'already aligned
		Local ret:Byte Ptr = AllocObject(8 + upvars * 4, BlueTypeTag.FUN)
		Byte Ptr Ptr(ret)[0] = bc
		Return ret
	End Method
	Method AllocString:Byte Ptr(size:Int, charp:Short Ptr)
		Local sz:Int = size
		If sz Mod 4 Then sz :+ 4 - sz Mod 4	'align properly
		Local ret:Byte Ptr = AllocObject(8 + sz * 2, BlueTypeTag.STR), destp:Short Ptr = Short Ptr(ret + 8), hash:Int = 5381
		For Local c:Int = 0 Until size	'fill the string and compute hash in one go
			destp[c] = charp[c]
			hash = (hash * 33) ~ charp[c]	'djb2
		Next
		Int Ptr(ret)[0] = size ; Int Ptr(ret)[1] = hash
		Return ret
	End Method
	Method AllocUserdata:Byte Ptr(meta:Byte Ptr, val:Byte Ptr)
		Local ret:Byte Ptr = AllocObject(8, BlueTypeTag.USR)
		Byte Ptr Ptr(ret)[0] = meta ; Byte Ptr Ptr(ret)[1] = val
		Return ret
	End Method
	Method AllocThread()
	End Method

	Method AllocConstant:Byte Ptr(size:Int, charp:Short Ptr)	'string constants (the only other kind are doubles)
		Local hash:Int = 5381
		For Local c:Int = 0 Until size	'do this first so we can check for duplicates easily
			hash = (hash * 33) ~ charp[c]	'djb2
		Next
		For Local k:Int = 0 Until kstrings.Length
			If hash = Int Ptr(kstrings[k])[3] And size = Int Ptr(kstrings[k])[2]
				Local eq:Int = True
				For Local ch:Int = 0 Until size
					If charp[ch] <> Short Ptr(kstrings[k] + 16)[ch] Then eq = False ; Exit
				Next
				If eq Then Return kstrings[k] + 8	'if it already exists, share it
			EndIf
		Next

		Local ret:Byte Ptr = MemAlloc(8 + 8 + size * 2), destp:Short Ptr = Short Ptr(ret + 16)
		Int Ptr(ret)[0] = (8 + 8 + size * 2) ; Short Ptr(ret + 4)[0] = BlueTypeTag.STR	'set colour too?
		Int Ptr(ret)[2] = size ; Int Ptr(ret)[3] = hash
		For Local ch:Int = 0 Until size
			destp[ch] = charp[ch]
		Next

		kstrings :+ [ret]
		Return ret + 8
	End Method
	Method AllocBytecode:Byte Ptr(upvars:Int, kcount:Int, icount:Int)
		Local ret:Byte Ptr = MemAlloc(4 * BYTECODESZ + 8 * kcount + 8 * icount + 8 * upvars)	'not here to do malloc's job for it
		bytecodes :+ [ret]
		Return ret
	End Method
	Method MaxStringToVal:Long(s:String)	'allocates as a constant; use sparingly
		Local ch:Short Ptr = s.ToWString(), ret:Byte Ptr = AllocConstant(s.Length, ch), val:Long
		MemFree(ch)
		Int Ptr(Varptr(val))[0] = Int(ret) ; Int Ptr(Varptr(val))[1] = BlueTypeTag.NANBOX | BlueTypeTag.STR
		Return val
	End Method
	Method ValToMaxString:String(val:Long)
		'insert type check here (assume string for now)
		Local obj:Byte Ptr = Byte Ptr(Int(val))
		Local chars:Short[Int Ptr(obj)[0]]
		For Local c:Int = 0 Until chars.Length
			chars[c] = Short Ptr(obj + 8)[c]
		Next
		Return String.FromShorts(Short Ptr(chars), chars.Length)
	End Method
	Method RootObj:BlueGCNode(o:Byte Ptr)
		gcroots.nx = BlueGCNode.Insert(o, gcroots, gcroots.nx) ; Return gcroots.nx
	End Method

	Method AddCodePage()
		codeSpace = [AlignedAlloc(2 * PAGESZ, PAGESZ)] + codeSpace
		PageSetRWX(codeSpace[0], PAGESZ)
		Int Ptr(codeSpace[0])[0] = PAGEMETASZ
	End Method
	Method AddPage:Byte Ptr(space:Byte Ptr[] Var, init:Int, exec:Int = False)
		Local p:Byte Ptr = AlignedAlloc(PAGESZ, PAGESZ)	'x86: assume this returns zero-initialized result already
		space = [p] + space ; Int Ptr(p)[0] = init
		If exec Then PageSetRWX(space[0], PAGESZ)
		Return p
	End Method
'	Method HeaderSize:Int(space:Byte Ptr[])
'		Select space
'			Case oldPtrSpace ; Return PAGEBITMAPSZ
'			Default          ; Return PAGEMETASZ
'		End Select
'	End Method

	Method AllocCodeBlock:Byte Ptr(sz:Int)	'this returns the requested size, allocating it externally if necessary
		Local page:Byte Ptr = codeSpace[0], pNewPtr:Int = Int Ptr(page)[0]
		If pNewPtr + sz > PAGESZ
			RuntimeError "not yet implemented"
		Else
			Int Ptr(page)[0] :+ sz
			Return page + pNewPtr
		EndIf
	End Method

	Method AllocObject:Byte Ptr(sz:Int, tag:Short)
		sz :+ 8 ; Local ret:Byte Ptr
		If sz < BIGOBJECTSZ
			If newPtr + sz > EDENSIZE Then Collect()
			ret = newSpace + newPtr; newPtr :+ sz
		Else
			ret = MemAlloc(sz)
			If Not ret Then Throw BlueInterpretError.Make("unable to allocate memory for object")
			bigSpace :+ [ret]
			' track as part of allocated memory
		EndIf
		Int Ptr(ret)[0] = sz ; Short Ptr(ret + 4)[0] = tag
		Return ret + 8
	End Method

	Function PtrToVal:Long(p:Byte Ptr, tag:Short)
		Local ret:Long, rp:Int Ptr = Int Ptr(Varptr(ret))
		rp[0] = Int(p) ; rp[1] = BlueTypeTag.NANBOX | tag
		Return ret
	End Function
	Function ValToPtr:Byte Ptr(v:Long)
		Local vp:Byte Ptr Ptr = Byte Ptr Ptr(Varptr(v))
		Return vp[0]
	End Function
End Type

Type BlueGCNode
	Field pv:BlueGCNode, nx:BlueGCNode, val:Byte Ptr
	Method Remove()
		If pv Then pv.nx = nx ; pv = Null
		If nx Then nx.pv = pv ; nx = Null
	End Method

	Function Cons:BlueGCNode(val:Byte Ptr, nx:BlueGCNode)
		Local n:BlueGCNode = New Self
		n.nx = nx ; n.val = val
		Return n
	End Function
	Function Insert:BlueGCNode(val:Byte Ptr, pv:BlueGCNode, nx:BlueGCNode)
		Local n:BlueGCNode = New Self
		n.pv = pv ; n.nx = nx ; n.val = val
		Return n
	End Function
End Type

Private

Public


Stop key going over 256 which causes BlitzMax to crash for MonkeyMax.

' ***** Start mojo.bmax.bmx ******

Global app:gxtkApp

Type gxtkApp
	Field ginput:gxtkInput
	Field gaudio:gxtkAudio
	Field ggraphics:gxtkGraphics

	Field dead:Int=0
	Field suspended:Int=0
	Field vloading:Int=0
	Field maxloading:Int=0
	Field updateRate:Int=0
	Field nextUpdate:Float=0
	Field updatePeriod:Float=0
	Field startMillis:Float=0

	Method New()' gxtkApp()
		app=Self
		ggraphics=New gxtkGraphics
	EndMethod

	Method Setup()
		ginput=New gxtkInput
		gaudio=New gxtkAudio

		bb_input_SetInputDevice(ginput)
		bb_audio_SetAudioDevice(gaudio)

		startMillis=BlitzMaxMillisecs()

		SetFrameRate( 0 )

		InvokeOnCreate()
		InvokeOnRender()
		Update()
	EndMethod

	Method Update()
		While Not AppTerminate()
			Local updates:Int = 0

			Local cont:Int = 1
			While (cont)
				nextUpdate:+updatePeriod
				InvokeOnUpdate()
				If Not updatePeriod Then cont = 0
				If nextUpdate>BlitzMaxMillisecs() Then cont = 0
				updates:+1
				If updates = 7 Then
					nextUpdate = BlitzMaxMillisecs()
					cont = 0
				EndIf
			Wend
			InvokeOnRender()
		Wend
	EndMethod

	Method InvokeOnCreate()
		If dead Return
		dead = 1
		OnCreate()
		dead = 0
	EndMethod

	Method InvokeOnUpdate()
		If dead Or suspended Or Not updateRate Or vloading Return
		OnUpdate()
	EndMethod

	Method InvokeOnRender()
		If dead Or suspended Return
		ggraphics.BeginRender()
		If vloading
			OnLoading()
		Else
			OnRender()
		EndIf
		ggraphics.EndRender()
	EndMethod

	Method SetFrameRate( fps:Int )
		If fps
			updatePeriod=1000.0/fps
			nextUpdate=BlitzMaxMillisecs() +updatePeriod
		Else
			updatePeriod=0
		EndIf
	EndMethod

	Method LoadState:String()
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		var state:String=file.data.state;
'		file.close();
'		if( state ) return state;
		Return ""
	EndMethod

	Method SaveState:Int( state:String )
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		file.data.state=state;
'		file.close();
		Return 0
	EndMethod

	Method LoadString:String( path:String )
		path = "data/" + path
		Return LoadText( path )
	EndMethod

	' ***** GXTK API *****

	Method GraphicsDevice:gxtkGraphics()
		Return ggraphics
	EndMethod

	Method InputDevice:gxtkInput()
		Return ginput
	EndMethod

	Method AudioDevice:gxtkAudio()
		Return gaudio
	EndMethod

	Method SetUpdateRate:Int(hertz:Int)
		updateRate = hertz
		If Not vloading Then SetFrameRate(updateRate)
		Return 0
	EndMethod

	Method MilliSecs:Int()
		Return BlitzMaxMillisecs() - startMillis
	EndMethod

	Method Loading:Int()
		Return vloading
	EndMethod

	Method OnCreate:Int()
		Return 0
	EndMethod

	Method OnUpdate:Int()
		Return 0
	EndMethod

	Method OnSuspend:Int()
		Return 0
	EndMethod

	Method OnResume:Int()
		Return 0
	EndMethod

	Method OnRender:Int()
		Return 0
	EndMethod

	Method OnLoading:Int()
		Return 0
	EndMethod
EndType

Type gxtkGraphics
	Field gmode:Int = 1

	Method Mode:Int()
		Return gmode
	EndMethod

	Method Cls:Int(r:Int = 0, g:Int = 0, b:Int = 0)
		BlitzMaxCls(r, g, b)
		Return 0
	EndMethod

	Method DrawPoint:Int(x:Float, y:Float)
		Plot x, y
	EndMethod

	Method LoadSurface:gxtkSurface(path:String)
		Local image:TImage = LoadImage("data/"+path)
		If image Then
			Local gs:gxtkSurface = New gxtkSurface
			gs.setImage(image)
			Return gs
		EndIf
		Return Null
	EndMethod

	Method BeginRender()
	EndMethod

	Method EndRender()
		Flip
	EndMethod

	Method SetColor:Int(r:Int, g:Int, b:Int)
		BlitzMaxSetColor(r, g, b)
		Return 0
	EndMethod

	Method SetAlpha:Int(a:Float)
		BlitzMaxSetAlpha(a)
		Return 0
	EndMethod

	Method SetBlend:Int(blend:Int)
		BlitzMaxSetBlend(blend)
		Return 0
	EndMethod

	Method Width:Int()
		Return GraphicsWidth()
	EndMethod

	Method Height:Int()
		Return GraphicsHeight()
	EndMethod

	Method SetScissor:Int(x:Int, y:Int, w:Int, h:Int)
		SetViewport(x, y, w, h) ' NOT TESTED!
		Return 0
	EndMethod

	Method SetMatrix:Int(ix:Float,iy:Float,jx:Float,jy:Float,tx:Float,ty:Float)
		Local sx:Float = Sqr( (ix*ix) + (jx*jx) )
		Local sy:Float = Sqr( (iy*iy) + (jy*jy) )
		Local rot:Float = -Atan2( jx, ix )
		SetTransform( rot, sx, sy )
		SetOrigin( tx, ty )
		Return 0
	EndMethod

	Method DrawSurface:Int(surface:gxtkSurface,x:Float,y:Float)
		DrawImage(surface.image, x, y, 0)
		Return 0
	EndMethod

	Method DrawSurface2:Int(surface:gxtkSurface,x:Float,y:Float, srcx:Int, srcy:Int, srcw:Int, srch:Int )
		DrawSubImageRect(surface.image, x, y, srcw, srch, srcx, srcy, srcw, srch)
		Return 0
	EndMethod

	Method DrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
		BlitzMaxDrawLine(x1, y1, x2, y2)
		Return 0
	EndMethod

	Method DrawOval:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawOval(x, y, w, h)
		Return 0
	EndMethod

	Method DrawPoly:Int(vertices:Float[])
		BlitzMaxDrawPoly( vertices )
		Return 0
	EndMethod

	Method DrawRect:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawRect(x, y, w, h)
		Return 0
	EndMethod
EndType

Type gxtkInput
	Method MouseX:Float()
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method MouseY:Float()
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method KeyDown:Int( key:Int )
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseDown( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyDown( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method KeyHit:Int( key:Int )
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseHit( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyHit( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method GetChar:Int()
		Return BRL.PolledInput.GetChar()
	EndMethod

	Method JoyX:Int( index:Int )
		Return Pub.FreeJoy.JoyX( index )
	EndMethod

	Method JoyY:Int( index:Int )
		Return Pub.FreeJoy.JoyY( index )
	EndMethod

	Method JoyZ:Int( index:Int )
		Return Pub.FreeJoy.JoyZ( index )
	EndMethod

	Method TouchX:Float( index:Int )
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method TouchY:Float( index:Int )
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method AccelX:Int()
		return 0
	EndMethod

	Method AccelY:Int()
		return 0
	EndMethod

	Method AccelZ:Int()
		return 0
	EndMethod

	Method SetKeyboardEnabled:Int( enabled:int )
		Return 0
	EndMethod
EndType

Type gxtkChannel
	Field channel:TChannel	' null then not playing
	Field sample:gxtkSample
	Field loops:int
	'Field transform:SoundTransform=new SoundTransform()
	'Field pausepos:Number
	Field state:int

	Method New()
		channel = New TChannel
	EndMethod
EndType

Type gxtkAudio
	Field amusicState:Int = 0
	Field channels:gxtkChannel[] = New gxtkChannel[33]

	Method New()
		For local i:Int = 0 To 33 - 1
			channels[i] = New gxtkChannel
		Next
	EndMethod

	Method MusicState:Int()
'		If( musicState = 1 And music.isPlaying() = False )
'			musicState = 0;
'		Endif
		Return amusicState
	EndMethod

	Method PlayMusic:Int( path:String, flags:Int )
		Return 0
	EndMethod

	Method ChannelState:int( channel:int )
		Return -1
	EndMethod

	Method StopMusic()
	EndMethod

	Method StopChannel( channel:Int )
	EndMethod

	Method PlaySample( sound:gxtkSample, channel:Int, flags:Int )
		Local chan:gxtkChannel = channels[channel]

		'If chan.state <> 0 Then chan.channel.Stop() <-- this crashes after the first play!?

		chan.sample = sound
		'chan.loops = flags ? 0x7fffffff : 0;
		'chan.channel = sample.sound.play( 0,chan.loops,chan.transform );
		'chan.channel = sound
		chan.state=1

		PlaySound( sound.sound, chan.channel )
	EndMethod

	Method SetPan( channel:Int, pan:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetPan(pan)
	EndMethod

	Method SetRate( channel:Int, rate:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetRate(rate)
	EndMethod

	Method PauseMusic:Int()
		Return 0
	EndMethod

	Method ResumeMusic:Int()
		Return 0
	EndMethod

	Method SetMusicVolume:Int( volume:Float )
		Return 0
	EndMethod

	Method SetVolume:Int( channel:Int, volume:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetVolume(volume)
		Return 0
	EndMethod

	Method LoadSample:gxtkSample( path:String )
		Local sound:TSound = LoadSound("data/"+path)
		If sound Then
			Local gs:gxtkSample = New gxtkSample
			gs.setSound(sound)
			Return gs
		EndIf
		Return Null
	EndMethod
EndType

Type gxtkSample
	Field sound:TSound

	Method setSound(sound:TSound)
		Self.sound = sound
	EndMethod

	Method Discard()
		Self.sound = null
	EndMethod
EndType

Function BlitzMaxDrawPoly:Int(vertices:Float[])
	DrawPoly vertices
	Return 0
EndFunction

Function BlitzMaxDrawRect:Int( x:Float, y:Float, w:Float, h:Float )
	DrawRect x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawOval:Int( x:Float, y:Float, w:Float, h:Float )
	DrawOval x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
	DrawLine x1, y1, x2, y2
	Return 0
EndFunction

Function BlitzMaxMillisecs:Int()
	Return MilliSecs()
EndFunction

Function BlitzMaxSetColor(r:Int, g:Int, b:Int)
	SetColor(r, g, b)
EndFunction

Function BlitzMaxSetBlend(blend:Int)
	Select blend
		Case 0
			SetBlend( ALPHABLEND )
		Case 1
			SetBlend( LIGHTBLEND )
	End Select
EndFunction

Function BlitzMaxSetAlpha(a:Float)
	SetAlpha(a)
EndFunction

Function BlitzMaxCls(r:Int = 0, g:Int = 0, b:Int = 0)
	SetClsColor(r, g, b)
	Cls
EndFunction

Type gxtkSurface
	Field w:Int, h:Int
	Field image:TImage

	Method setImage(image:TImage)
		Self.image = image
	EndMethod

	Method Width:Int()
		Return image.Width
	EndMethod

	Method Height:Int()
		Return image.Height
	EndMethod

	Method Discard()
	EndMethod
EndType

' ***** End mojo.bmax.bmx ******

' ***** Start mojo.bmax.bmx ******

Global app:gxtkApp

Type gxtkApp
	Field ginput:gxtkInput
	Field gaudio:gxtkAudio
	Field ggraphics:gxtkGraphics

	Field dead:Int=0
	Field suspended:Int=0
	Field vloading:Int=0
	Field maxloading:Int=0
	Field updateRate:Int=0
	Field nextUpdate:Float=0
	Field updatePeriod:Float=0
	Field startMillis:Float=0

	Method New()' gxtkApp()
		app=Self
		ggraphics=New gxtkGraphics
	EndMethod

	Method Setup()
		ginput=New gxtkInput
		gaudio=New gxtkAudio

		bb_input_SetInputDevice(ginput)
		bb_audio_SetAudioDevice(gaudio)

		startMillis=BlitzMaxMillisecs()

		SetFrameRate( 0 )

		InvokeOnCreate()
		InvokeOnRender()
		Update()
	EndMethod

	Method Update()
		While Not AppTerminate()
			Local updates:Int = 0

			Local cont:Int = 1
			While (cont)
				nextUpdate:+updatePeriod
				InvokeOnUpdate()
				If Not updatePeriod Then cont = 0
				If nextUpdate>BlitzMaxMillisecs() Then cont = 0
				updates:+1
				If updates = 7 Then
					nextUpdate = BlitzMaxMillisecs()
					cont = 0
				EndIf
			Wend
			InvokeOnRender()
		Wend
	EndMethod

	Method InvokeOnCreate()
		If dead Return
		dead = 1
		OnCreate()
		dead = 0
	EndMethod

	Method InvokeOnUpdate()
		If dead Or suspended Or Not updateRate Or vloading Return
		OnUpdate()
	EndMethod

	Method InvokeOnRender()
		If dead Or suspended Return
		ggraphics.BeginRender()
		If vloading
			OnLoading()
		Else
			OnRender()
		EndIf
		ggraphics.EndRender()
	EndMethod

	Method SetFrameRate( fps:Int )
		If fps
			updatePeriod=1000.0/fps
			nextUpdate=BlitzMaxMillisecs() +updatePeriod
		Else
			updatePeriod=0
		EndIf
	EndMethod

	Method LoadState:String()
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		var state:String=file.data.state;
'		file.close();
'		if( state ) return state;
		Return ""
	EndMethod

	Method SaveState:Int( state:String )
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		file.data.state=state;
'		file.close();
		Return 0
	EndMethod

	Method LoadString:String( path:String )
		path = "data/" + path
		Return LoadText( path )
	EndMethod

	' ***** GXTK API *****

	Method GraphicsDevice:gxtkGraphics()
		Return ggraphics
	EndMethod

	Method InputDevice:gxtkInput()
		Return ginput
	EndMethod

	Method AudioDevice:gxtkAudio()
		Return gaudio
	EndMethod

	Method SetUpdateRate:Int(hertz:Int)
		updateRate = hertz
		If Not vloading Then SetFrameRate(updateRate)
		Return 0
	EndMethod

	Method MilliSecs:Int()
		Return BlitzMaxMillisecs() - startMillis
	EndMethod

	Method Loading:Int()
		Return vloading
	EndMethod

	Method OnCreate:Int()
		Return 0
	EndMethod

	Method OnUpdate:Int()
		Return 0
	EndMethod

	Method OnSuspend:Int()
		Return 0
	EndMethod

	Method OnResume:Int()
		Return 0
	EndMethod

	Method OnRender:Int()
		Return 0
	EndMethod

	Method OnLoading:Int()
		Return 0
	EndMethod
EndType

Type gxtkGraphics
	Field gmode:Int = 1

	Method Mode:Int()
		Return gmode
	EndMethod

	Method Cls:Int(r:Int = 0, g:Int = 0, b:Int = 0)
		BlitzMaxCls(r, g, b)
		Return 0
	EndMethod

	Method DrawPoint:Int(x:Float, y:Float)
		Plot x, y
	EndMethod

	Method LoadSurface:gxtkSurface(path:String)
		Local image:TImage = LoadImage("data/"+path)
		If image Then
			Local gs:gxtkSurface = New gxtkSurface
			gs.setImage(image)
			Return gs
		EndIf
		Return Null
	EndMethod

	Method BeginRender()
	EndMethod

	Method EndRender()
		Flip
	EndMethod

	Method SetColor:Int(r:Int, g:Int, b:Int)
		BlitzMaxSetColor(r, g, b)
		Return 0
	EndMethod

	Method SetAlpha:Int(a:Float)
		BlitzMaxSetAlpha(a)
		Return 0
	EndMethod

	Method SetBlend:Int(blend:Int)
		BlitzMaxSetBlend(blend)
		Return 0
	EndMethod

	Method Width:Int()
		Return GraphicsWidth()
	EndMethod

	Method Height:Int()
		Return GraphicsHeight()
	EndMethod

	Method SetScissor:Int(x:Int, y:Int, w:Int, h:Int)
		SetViewport(x, y, w, h) ' NOT TESTED!
		Return 0
	EndMethod

	Method SetMatrix:Int(ix:Float,iy:Float,jx:Float,jy:Float,tx:Float,ty:Float)
		Local sx:Float = Sqr( (ix*ix) + (jx*jx) )
		Local sy:Float = Sqr( (iy*iy) + (jy*jy) )
		Local rot:Float = -Atan2( jx, ix )
		SetTransform( rot, sx, sy )
		SetOrigin( tx, ty )
		Return 0
	EndMethod

	Method DrawSurface:Int(surface:gxtkSurface,x:Float,y:Float)
		DrawImage(surface.image, x, y, 0)
		Return 0
	EndMethod

	Method DrawSurface2:Int(surface:gxtkSurface,x:Float,y:Float, srcx:Int, srcy:Int, srcw:Int, srch:Int )
		DrawSubImageRect(surface.image, x, y, srcw, srch, srcx, srcy, srcw, srch)
		Return 0
	EndMethod

	Method DrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
		BlitzMaxDrawLine(x1, y1, x2, y2)
		Return 0
	EndMethod

	Method DrawOval:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawOval(x, y, w, h)
		Return 0
	EndMethod

	Method DrawPoly:Int(vertices:Float[])
		BlitzMaxDrawPoly( vertices )
		Return 0
	EndMethod

	Method DrawRect:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawRect(x, y, w, h)
		Return 0
	EndMethod
EndType

Type gxtkInput
	Method MouseX:Float()
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method MouseY:Float()
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method KeyDown:Int( key:Int )
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseDown( key )
		EndIf
		Return BRL.PolledInput.KeyDown( key )
	EndMethod

	Method KeyHit:Int( key:Int )
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseHit( key )
		EndIf
		Return BRL.PolledInput.KeyHit( key )
	EndMethod

	Method GetChar:Int()
		Return BRL.PolledInput.GetChar()
	EndMethod

	Method JoyX:Int( index:Int )
		Return Pub.FreeJoy.JoyX( index )
	EndMethod

	Method JoyY:Int( index:Int )
		Return Pub.FreeJoy.JoyY( index )
	EndMethod

	Method JoyZ:Int( index:Int )
		Return Pub.FreeJoy.JoyZ( index )
	EndMethod

	Method TouchX:Float( index:Int )
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method TouchY:Float( index:Int )
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method AccelX:Int()
		return 0
	EndMethod

	Method AccelY:Int()
		return 0
	EndMethod

	Method AccelZ:Int()
		return 0
	EndMethod

	Method SetKeyboardEnabled:Int( enabled:int )
		Return 0
	EndMethod
EndType

Type gxtkChannel
	Field channel:TChannel	' null then not playing
	Field sample:gxtkSample
	Field loops:int
	'Field transform:SoundTransform=new SoundTransform()
	'Field pausepos:Number
	Field state:int

	Method New()
		channel = New TChannel
	EndMethod
EndType

Type gxtkAudio
	Field amusicState:Int = 0
	Field channels:gxtkChannel[] = New gxtkChannel[33]

	Method New()
		For local i:Int = 0 To 33 - 1
			channels[i] = New gxtkChannel
		Next
	EndMethod

	Method MusicState:Int()
'		If( musicState = 1 And music.isPlaying() = False )
'			musicState = 0;
'		Endif
		Return amusicState
	EndMethod

	Method PlayMusic:Int( path:String, flags:Int )
		Return 0
	EndMethod

	Method ChannelState:int( channel:int )
		Return -1
	EndMethod

	Method StopMusic()
	EndMethod

	Method StopChannel( channel:Int )
	EndMethod

	Method PlaySample( sound:gxtkSample, channel:Int, flags:Int )
		Local chan:gxtkChannel = channels[channel]

		'If chan.state <> 0 Then chan.channel.Stop() <-- this crashes after the first play!?

		chan.sample = sound
		'chan.loops = flags ? 0x7fffffff : 0;
		'chan.channel = sample.sound.play( 0,chan.loops,chan.transform );
		'chan.channel = sound
		chan.state=1

		PlaySound( sound.sound, chan.channel )
	EndMethod

	Method SetPan( channel:Int, pan:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetPan(pan)
	EndMethod

	Method SetRate( channel:Int, rate:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetRate(rate)
	EndMethod

	Method PauseMusic:Int()
		Return 0
	EndMethod

	Method ResumeMusic:Int()
		Return 0
	EndMethod

	Method SetMusicVolume:Int( volume:Float )
		Return 0
	EndMethod

	Method SetVolume:Int( channel:Int, volume:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetVolume(volume)
		Return 0
	EndMethod

	Method LoadSample:gxtkSample( path:String )
		Local sound:TSound = LoadSound("data/"+path)
		If sound Then
			Local gs:gxtkSample = New gxtkSample
			gs.setSound(sound)
			Return gs
		EndIf
		Return Null
	EndMethod
EndType

Type gxtkSample
	Field sound:TSound

	Method setSound(sound:TSound)
		Self.sound = sound
	EndMethod

	Method Discard()
		Self.sound = null
	EndMethod
EndType

Function BlitzMaxDrawPoly:Int(vertices:Float[])
	DrawPoly vertices
	Return 0
EndFunction

Function BlitzMaxDrawRect:Int( x:Float, y:Float, w:Float, h:Float )
	DrawRect x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawOval:Int( x:Float, y:Float, w:Float, h:Float )
	DrawOval x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
	DrawLine x1, y1, x2, y2
	Return 0
EndFunction

Function BlitzMaxMillisecs:Int()
	Return MilliSecs()
EndFunction

Function BlitzMaxSetColor(r:Int, g:Int, b:Int)
	SetColor(r, g, b)
EndFunction

Function BlitzMaxSetBlend(blend:Int)
	Select blend
		Case 0
			SetBlend( ALPHABLEND )
		Case 1
			SetBlend( LIGHTBLEND )
	End Select
EndFunction

Function BlitzMaxSetAlpha(a:Float)
	SetAlpha(a)
EndFunction

Function BlitzMaxCls(r:Int = 0, g:Int = 0, b:Int = 0)
	SetClsColor(r, g, b)
	Cls
EndFunction

Type gxtkSurface
	Field w:Int, h:Int
	Field image:TImage

	Method setImage(image:TImage)
		Self.image = image
	EndMethod

	Method Width:Int()
		Return image.Width
	EndMethod

	Method Height:Int()
		Return image.Height
	EndMethod

	Method Discard()
	EndMethod
EndType

' ***** End mojo.bmax.bmx ******


FINALLY fixed matrices.... I hope.

FINALLY fixed matrices.... I hope.

' ***** Start mojo.bmax.bmx ******

Global app:gxtkApp

Type gxtkApp
	Field ginput:gxtkInput
	Field gaudio:gxtkAudio
	Field ggraphics:gxtkGraphics

	Field dead:Int=0
	Field suspended:Int=0
	Field vloading:Int=0
	Field maxloading:Int=0
	Field updateRate:Int=0
	Field nextUpdate:Float=0
	Field updatePeriod:Float=0
	Field startMillis:Float=0

	Method New()' gxtkApp()
		app=Self
		ggraphics=New gxtkGraphics
	EndMethod

	Method Setup()
		ginput=New gxtkInput
		gaudio=New gxtkAudio

		bb_input__1Set_1Input_1Device(ginput)
		bb_audio__1Set_1Audio_1Device(gaudio)

		startMillis=BlitzMaxMillisecs()

		SetFrameRate( 0 )

		InvokeOnCreate()
		InvokeOnRender()
		Update()
	EndMethod

	Method Update()
		While Not AppTerminate()
			If Not updatePeriod return
			Local updates:Int = 0

			Repeat
				nextUpdate:+updatePeriod
				InvokeOnUpdate()
				If Not updatePeriod Then Exit
				If nextUpdate>BlitzMaxMillisecs() Then Exit
				updates:+1
				If updates = 7 Then
					nextUpdate = BlitzMaxMillisecs()
					Exit
				EndIf
			Forever
			InvokeOnRender()
			Local del:Int = nextUpdate - BlitzMaxMillisecs()
			If del < 1 Then del = 1
			Delay(del)
		Wend
	EndMethod

	Method InvokeOnCreate()
		If dead Return
		dead = 1
		OnCreate()
		dead = 0
	EndMethod

	Method InvokeOnUpdate()
		If dead Or suspended Or Not updateRate Or vloading Return
		OnUpdate()
	EndMethod

	Method InvokeOnRender()
		If dead Or suspended Return
		ggraphics.BeginRender()
		If vloading
			OnLoading()
		Else
			OnRender()
		EndIf
		ggraphics.EndRender()
	EndMethod

	Method SetFrameRate( fps:Int )
		If fps
			updatePeriod=1000.0/fps
			nextUpdate=BlitzMaxMillisecs() +updatePeriod
		Else
			updatePeriod=0
		EndIf
	EndMethod

	Method LoadState:String()
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		var state:String=file.data.state;
'		file.close();
'		if( state ) return state;
		Return ""
	EndMethod

	Method SaveState:Int( state:String )
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		file.data.state=state;
'		file.close();
		Return 0
	EndMethod

	Method LoadString:String( path:String )
		path = "data/" + path
		Return LoadText( path )
	EndMethod

	' ***** GXTK API *****

	Method GraphicsDevice:gxtkGraphics()
		Return ggraphics
	EndMethod

	Method InputDevice:gxtkInput()
		Return ginput
	EndMethod

	Method AudioDevice:gxtkAudio()
		Return gaudio
	EndMethod

	Method SetUpdateRate:Int(hertz:Int)
		updateRate = hertz
		If Not vloading Then SetFrameRate(updateRate)
		Return 0
	EndMethod

	Method MilliSecs:Int()
		Return BlitzMaxMillisecs() - startMillis
	EndMethod

	Method Loading:Int()
		Return vloading
	EndMethod

	Method OnCreate:Int()
		Return 0
	EndMethod

	Method OnUpdate:Int()
		Return 0
	EndMethod

	Method OnSuspend:Int()
		Return 0
	EndMethod

	Method OnResume:Int()
		Return 0
	EndMethod

	Method OnRender:Int()
		Return 0
	EndMethod

	Method OnLoading:Int()
		Return 0
	EndMethod
EndType

Type gxtkGraphics
	Field gmode:Int = 1
	Field ix:Float=1,iy:Float,jx:Float,jy:Float=1,tx:Float,ty:Float
	Field sx:Float=1,sy:Float=1,rot:Float=0

	Method Mode:Int()
		Return gmode
	EndMethod

	Method Cls:Int(r:Int = 0, g:Int = 0, b:Int = 0)
		BlitzMaxCls(r, g, b)
		Return 0
	EndMethod

	Method DrawPoint:Int(x:Float, y:Float)
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		Plot nx, ny
	EndMethod

	Method LoadSurface:gxtkSurface(path:String)
		Local image:TImage = LoadImage("data/"+path)
		If image Then
			Local gs:gxtkSurface = New gxtkSurface
			gs.setImage(image)
			Return gs
		EndIf
		Return Null
	EndMethod

	Method BeginRender()
	EndMethod

	Method EndRender()
		Flip
	EndMethod

	Method SetColor:Int(r:Int, g:Int, b:Int)
		BlitzMaxSetColor(r, g, b)
		Return 0
	EndMethod

	Method SetAlpha:Int(a:Float)
		BlitzMaxSetAlpha(a)
		Return 0
	EndMethod

	Method SetBlend:Int(blend:Int)
		BlitzMaxSetBlend(blend)
		Return 0
	EndMethod

	Method Width:Int()
		Return GraphicsWidth()
	EndMethod

	Method Height:Int()
		Return GraphicsHeight()
	EndMethod

	Method SetScissor:Int(x:Int, y:Int, w:Int, h:Int)
		SetViewport(x, y, w, h) ' NOT TESTED!
		Return 0
	EndMethod

	Method TransX:Float(x:Float, y:Float)
		Return ix*x + jx*y + tx
	EndMethod

	Method TransY:Float(x:Float, y:Float)
		Return iy*x + jy*y + ty
	EndMethod

	Method SetMatrix:Int(ix:Float,iy:Float,jx:Float,jy:Float,tx:Float,ty:Float)
		Self.ix = ix ; Self.iy = iy
		Self.jx = jx ; Self.jy = jy
		Self.tx = tx ; Self.ty = ty
		sx = Sqr(ix*ix+iy*iy)
		sy = Sqr(jx*jx+jy*jy)
		rot = Atan2( iy, ix )
		If ix < 0 Then
			sx = -sx
			rot :+ 180
		EndIf
		If jy < 0 Then sy = -sy
		SetTransform( rot, sx, sy )
		Return 0
	EndMethod

	Method DrawSurface:Int(surface:gxtkSurface,x:Float,y:Float)
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		DrawImage(surface.image, nx, ny, 0)
		Return 0
	EndMethod

	Method DrawSurface2:Int(surface:gxtkSurface,x:Float,y:Float, srcx:Int, srcy:Int, srcw:Int, srch:Int )
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		DrawSubImageRect(surface.image, nx, ny, srcw, srch, srcx, srcy, srcw, srch)
		Return 0
	EndMethod

	Method DrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
		Local nx1:Float = TransX(x1,y1)
		Local ny1:Float = TransY(x1,y1)
		Local nx2:Float = TransX(x2,y2)
		Local ny2:Float = TransY(x2,y2)
		' Need to reset transform so that BlitzMax doesn't try to apply rotation
		SetTransform( 0, 1, 1 )
		BlitzMaxDrawLine(nx1, ny1, nx2, ny2)
		SetTransform( rot, sx, sy )
		Return 0
	EndMethod

	Method DrawOval:Int( x:Float, y:Float, w:Float, h:Float )
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		BlitzMaxDrawOval(nx, ny, w, h)
		Return 0
	EndMethod

	Method DrawPoly:Int(vertices:Float[])
		' setting the origin to use the current rotation translation
		SetOrigin(TransX(0,0), TransY(0,0))
		BlitzMaxDrawPoly( vertices )
		SetOrigin(0, 0)
		Return 0
	EndMethod

	Method DrawRect:Int( x:Float, y:Float, w:Float, h:Float )
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		BlitzMaxDrawRect(nx, ny, w, h)
		Return 0
	EndMethod
EndType

Type gxtkInput
	Method MouseX:Float()
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method MouseY:Float()
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method KeyDown:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB

		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseDown( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyDown( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method KeyHit:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseHit( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyHit( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method GetChar:Int()
		Return BRL.PolledInput.GetChar()
	EndMethod

	Method JoyX:Int( index:Int )
		Return Pub.FreeJoy.JoyX( index )
	EndMethod

	Method JoyY:Int( index:Int )
		Return Pub.FreeJoy.JoyY( index )
	EndMethod

	Method JoyZ:Int( index:Int )
		Return Pub.FreeJoy.JoyZ( index )
	EndMethod

	Method TouchX:Float( index:Int )
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method TouchY:Float( index:Int )
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method AccelX:Int()
		return 0
	EndMethod

	Method AccelY:Int()
		return 0
	EndMethod

	Method AccelZ:Int()
		return 0
	EndMethod

	Method SetKeyboardEnabled:Int( enabled:int )
		Return 0
	EndMethod
EndType

Type gxtkChannel
	Field channel:TChannel	' null then not playing
	Field sample:gxtkSample
	Field loops:int
	'Field transform:SoundTransform=new SoundTransform()
	'Field pausepos:Number
	Field state:int

	Method New()
		channel = New TChannel
	EndMethod
EndType

Type gxtkAudio
	Field amusicState:Int = 0
	Field channels:gxtkChannel[] = New gxtkChannel[33]

	Method New()
		For local i:Int = 0 To 33 - 1
			channels[i] = New gxtkChannel
		Next
	EndMethod

	Method MusicState:Int()
'		If( musicState = 1 And music.isPlaying() = False )
'			musicState = 0;
'		Endif
		Return amusicState
	EndMethod

	Method PlayMusic:Int( path:String, flags:Int )
		Return 0
	EndMethod

	Method ChannelState:int( channel:int )
		Return -1
	EndMethod

	Method StopMusic()
	EndMethod

	Method StopChannel( channel:Int )
	EndMethod

	Method PlaySample( sound:gxtkSample, channel:Int, flags:Int )
		Local chan:gxtkChannel = channels[channel]

		'If chan.state <> 0 Then chan.channel.Stop() <-- this crashes after the first play!?

		chan.sample = sound
		'chan.loops = flags ? 0x7fffffff : 0;
		'chan.channel = sample.sound.play( 0,chan.loops,chan.transform );
		'chan.channel = sound
		chan.state=1

		PlaySound( sound.sound, chan.channel )
	EndMethod

	Method SetPan( channel:Int, pan:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetPan(pan)
	EndMethod

	Method SetRate( channel:Int, rate:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetRate(rate)
	EndMethod

	Method PauseMusic:Int()
		Return 0
	EndMethod

	Method ResumeMusic:Int()
		Return 0
	EndMethod

	Method SetMusicVolume:Int( volume:Float )
		Return 0
	EndMethod

	Method SetVolume:Int( channel:Int, volume:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetVolume(volume)
		Return 0
	EndMethod

	Method LoadSample:gxtkSample( path:String )
		Local extension:String = ExtractExt( path)
		If extension = "ogg" Or extension = "wav" Then
			Local sound:TSound = LoadSound("data/"+path)
			If sound Then
				Local gs:gxtkSample = New gxtkSample
				gs.setSound(sound)
				Return gs
			EndIf
		Else
			RuntimeError "BlitzMax can only use ogg and wav file formats"
		EndIf
		Return Null
	EndMethod
EndType

Type gxtkSample
	Field sound:TSound

	Method setSound(sound:TSound)
		Self.sound = sound
	EndMethod

	Method Discard()
		Self.sound = null
	EndMethod
EndType

Function BlitzMaxDrawPoly:Int(vertices:Float[])
	DrawPoly vertices
	Return 0
EndFunction

Function BlitzMaxDrawRect:Int( x:Float, y:Float, w:Float, h:Float )
	DrawRect x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawOval:Int( x:Float, y:Float, w:Float, h:Float )
	DrawOval x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
	DrawLine x1, y1, x2, y2
	Return 0
EndFunction

Function BlitzMaxMillisecs:Int()
	Return MilliSecs()
EndFunction

Function BlitzMaxSetColor(r:Int, g:Int, b:Int)
	SetColor(r, g, b)
EndFunction

Function BlitzMaxSetBlend(blend:Int)
	Select blend
		Case 0
			SetBlend( ALPHABLEND )
		Case 1
			SetBlend( LIGHTBLEND )
	End Select
EndFunction

Function BlitzMaxSetAlpha(a:Float)
	SetAlpha(a)
EndFunction

Function BlitzMaxCls(r:Int = 0, g:Int = 0, b:Int = 0)
	SetClsColor(r, g, b)
	Cls
EndFunction

Type gxtkSurface
	Field w:Int, h:Int
	Field image:TImage

	Method setImage(image:TImage)
		Self.image = image
	EndMethod

	Method Width:Int()
		Return image.Width
	EndMethod

	Method Height:Int()
		Return image.Height
	EndMethod

	Method Discard()
	EndMethod
EndType

' ***** End mojo.bmax.bmx ******

' ***** Start mojo.bmax.bmx ******

Global app:gxtkApp

Type gxtkApp
	Field ginput:gxtkInput
	Field gaudio:gxtkAudio
	Field ggraphics:gxtkGraphics

	Field dead:Int=0
	Field suspended:Int=0
	Field vloading:Int=0
	Field maxloading:Int=0
	Field updateRate:Int=0
	Field nextUpdate:Float=0
	Field updatePeriod:Float=0
	Field startMillis:Float=0

	Method New()' gxtkApp()
		app=Self
		ggraphics=New gxtkGraphics
	EndMethod

	Method Setup()
		ginput=New gxtkInput
		gaudio=New gxtkAudio

		bb_input__1Set_1Input_1Device(ginput)
		bb_audio__1Set_1Audio_1Device(gaudio)

		startMillis=BlitzMaxMillisecs()

		SetFrameRate( 0 )

		InvokeOnCreate()
		InvokeOnRender()
		Update()
	EndMethod

	Method Update()
		While Not AppTerminate()
			If Not updatePeriod return
			Local updates:Int = 0

			Repeat
				nextUpdate:+updatePeriod
				InvokeOnUpdate()
				If Not updatePeriod Then Exit
				If nextUpdate>BlitzMaxMillisecs() Then Exit
				updates:+1
				If updates = 7 Then
					nextUpdate = BlitzMaxMillisecs()
					Exit
				EndIf
			Forever
			InvokeOnRender()
			Local del:Int = nextUpdate - BlitzMaxMillisecs()
			If del < 1 Then del = 1
			Delay(del)
		Wend
	EndMethod

	Method InvokeOnCreate()
		If dead Return
		dead = 1
		OnCreate()
		dead = 0
	EndMethod

	Method InvokeOnUpdate()
		If dead Or suspended Or Not updateRate Or vloading Return
		OnUpdate()
	EndMethod

	Method InvokeOnRender()
		If dead Or suspended Return
		ggraphics.BeginRender()
		If vloading
			OnLoading()
		Else
			OnRender()
		EndIf
		ggraphics.EndRender()
	EndMethod

	Method SetFrameRate( fps:Int )
		If fps
			updatePeriod=1000.0/fps
			nextUpdate=BlitzMaxMillisecs() +updatePeriod
		Else
			updatePeriod=0
		EndIf
	EndMethod

	Method LoadState:String()
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		var state:String=file.data.state;
'		file.close();
'		if( state ) return state;
		Return ""
	EndMethod

	Method SaveState:Int( state:String )
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		file.data.state=state;
'		file.close();
		Return 0
	EndMethod

	Method LoadString:String( path:String )
		path = "data/" + path
		Return LoadText( path )
	EndMethod

	' ***** GXTK API *****

	Method GraphicsDevice:gxtkGraphics()
		Return ggraphics
	EndMethod

	Method InputDevice:gxtkInput()
		Return ginput
	EndMethod

	Method AudioDevice:gxtkAudio()
		Return gaudio
	EndMethod

	Method SetUpdateRate:Int(hertz:Int)
		updateRate = hertz
		If Not vloading Then SetFrameRate(updateRate)
		Return 0
	EndMethod

	Method MilliSecs:Int()
		Return BlitzMaxMillisecs() - startMillis
	EndMethod

	Method Loading:Int()
		Return vloading
	EndMethod

	Method OnCreate:Int()
		Return 0
	EndMethod

	Method OnUpdate:Int()
		Return 0
	EndMethod

	Method OnSuspend:Int()
		Return 0
	EndMethod

	Method OnResume:Int()
		Return 0
	EndMethod

	Method OnRender:Int()
		Return 0
	EndMethod

	Method OnLoading:Int()
		Return 0
	EndMethod
EndType

Type gxtkGraphics
	Field gmode:Int = 1
	Field ix:Float=1,iy:Float,jx:Float,jy:Float=1,tx:Float,ty:Float
	Field sx:Float=1,sy:Float=1,rot:Float=0

	Method Mode:Int()
		Return gmode
	EndMethod

	Method Cls:Int(r:Int = 0, g:Int = 0, b:Int = 0)
		BlitzMaxCls(r, g, b)
		Return 0
	EndMethod

	Method DrawPoint:Int(x:Float, y:Float)
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		Plot nx, ny
	EndMethod

	Method LoadSurface:gxtkSurface(path:String)
		Local image:TImage = LoadImage("data/"+path)
		If image Then
			Local gs:gxtkSurface = New gxtkSurface
			gs.setImage(image)
			Return gs
		EndIf
		Return Null
	EndMethod

	Method BeginRender()
	EndMethod

	Method EndRender()
		Flip
	EndMethod

	Method SetColor:Int(r:Int, g:Int, b:Int)
		BlitzMaxSetColor(r, g, b)
		Return 0
	EndMethod

	Method SetAlpha:Int(a:Float)
		BlitzMaxSetAlpha(a)
		Return 0
	EndMethod

	Method SetBlend:Int(blend:Int)
		BlitzMaxSetBlend(blend)
		Return 0
	EndMethod

	Method Width:Int()
		Return GraphicsWidth()
	EndMethod

	Method Height:Int()
		Return GraphicsHeight()
	EndMethod

	Method SetScissor:Int(x:Int, y:Int, w:Int, h:Int)
		SetViewport(x, y, w, h) ' NOT TESTED!
		Return 0
	EndMethod

	Method TransX:Float(x:Float, y:Float)
		Return ix*x + jx*y + tx
	EndMethod

	Method TransY:Float(x:Float, y:Float)
		Return iy*x + jy*y + ty
	EndMethod

	Method SetMatrix:Int(ix:Float,iy:Float,jx:Float,jy:Float,tx:Float,ty:Float)
		Self.ix = ix ; Self.iy = iy
		Self.jx = jx ; Self.jy = jy
		Self.tx = tx ; Self.ty = ty
		sx = Sqr( (ix*ix) + (jx*jx) )
		sy = Sqr( (iy*iy) + (jy*jy) )
		rot = -Atan2( jx, ix )
		SetTransform( rot, sx, sy )
		Return 0
	EndMethod

	Method DrawSurface:Int(surface:gxtkSurface,x:Float,y:Float)
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		DrawImage(surface.image, nx, ny, 0)
		Return 0
	EndMethod

	Method DrawSurface2:Int(surface:gxtkSurface,x:Float,y:Float, srcx:Int, srcy:Int, srcw:Int, srch:Int )
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		DrawSubImageRect(surface.image, nx, ny, srcw, srch, srcx, srcy, srcw, srch)
		Return 0
	EndMethod

	Method DrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
		Local nx1:Float = TransX(x1,y1)
		Local ny1:Float = TransY(x1,y1)
		Local nx2:Float = TransX(x2,y2)
		Local ny2:Float = TransY(x2,y2)
		' Need to reset transform so that BlitzMax doesn't try to apply rotation
		SetTransform( 0, 1, 1 )
		BlitzMaxDrawLine(nx1, ny1, nx2, ny2)
		SetTransform( rot, sx, sy )
		Return 0
	EndMethod

	Method DrawOval:Int( x:Float, y:Float, w:Float, h:Float )
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		BlitzMaxDrawOval(nx, ny, w, h)
		Return 0
	EndMethod

	Method DrawPoly:Int(vertices:Float[])
		' setting the origin to use the current rotation translation
		SetOrigin(TransX(0,0), TransY(0,0))
		BlitzMaxDrawPoly( vertices )
		SetOrigin(0, 0)
		Return 0
	EndMethod

	Method DrawRect:Int( x:Float, y:Float, w:Float, h:Float )
		Local nx:Float = TransX(x,y)
		Local ny:Float = TransY(x,y)
		BlitzMaxDrawRect(nx, ny, w, h)
		Return 0
	EndMethod
EndType

Type gxtkInput
	Method MouseX:Float()
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method MouseY:Float()
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method KeyDown:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB

		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseDown( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyDown( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method KeyHit:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseHit( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyHit( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method GetChar:Int()
		Return BRL.PolledInput.GetChar()
	EndMethod

	Method JoyX:Int( index:Int )
		Return Pub.FreeJoy.JoyX( index )
	EndMethod

	Method JoyY:Int( index:Int )
		Return Pub.FreeJoy.JoyY( index )
	EndMethod

	Method JoyZ:Int( index:Int )
		Return Pub.FreeJoy.JoyZ( index )
	EndMethod

	Method TouchX:Float( index:Int )
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method TouchY:Float( index:Int )
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method AccelX:Int()
		return 0
	EndMethod

	Method AccelY:Int()
		return 0
	EndMethod

	Method AccelZ:Int()
		return 0
	EndMethod

	Method SetKeyboardEnabled:Int( enabled:int )
		Return 0
	EndMethod
EndType

Type gxtkChannel
	Field channel:TChannel	' null then not playing
	Field sample:gxtkSample
	Field loops:int
	'Field transform:SoundTransform=new SoundTransform()
	'Field pausepos:Number
	Field state:int

	Method New()
		channel = New TChannel
	EndMethod
EndType

Type gxtkAudio
	Field amusicState:Int = 0
	Field channels:gxtkChannel[] = New gxtkChannel[33]

	Method New()
		For local i:Int = 0 To 33 - 1
			channels[i] = New gxtkChannel
		Next
	EndMethod

	Method MusicState:Int()
'		If( musicState = 1 And music.isPlaying() = False )
'			musicState = 0;
'		Endif
		Return amusicState
	EndMethod

	Method PlayMusic:Int( path:String, flags:Int )
		Return 0
	EndMethod

	Method ChannelState:int( channel:int )
		Return -1
	EndMethod

	Method StopMusic()
	EndMethod

	Method StopChannel( channel:Int )
	EndMethod

	Method PlaySample( sound:gxtkSample, channel:Int, flags:Int )
		Local chan:gxtkChannel = channels[channel]

		'If chan.state <> 0 Then chan.channel.Stop() <-- this crashes after the first play!?

		chan.sample = sound
		'chan.loops = flags ? 0x7fffffff : 0;
		'chan.channel = sample.sound.play( 0,chan.loops,chan.transform );
		'chan.channel = sound
		chan.state=1

		PlaySound( sound.sound, chan.channel )
	EndMethod

	Method SetPan( channel:Int, pan:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetPan(pan)
	EndMethod

	Method SetRate( channel:Int, rate:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetRate(rate)
	EndMethod

	Method PauseMusic:Int()
		Return 0
	EndMethod

	Method ResumeMusic:Int()
		Return 0
	EndMethod

	Method SetMusicVolume:Int( volume:Float )
		Return 0
	EndMethod

	Method SetVolume:Int( channel:Int, volume:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetVolume(volume)
		Return 0
	EndMethod

	Method LoadSample:gxtkSample( path:String )
		Local extension:String = ExtractExt( path)
		If extension = "ogg" Or extension = "wav" Then
			Local sound:TSound = LoadSound("data/"+path)
			If sound Then
				Local gs:gxtkSample = New gxtkSample
				gs.setSound(sound)
				Return gs
			EndIf
		Else
			RuntimeError "BlitzMax can only use ogg and wav file formats"
		EndIf
		Return Null
	EndMethod
EndType

Type gxtkSample
	Field sound:TSound

	Method setSound(sound:TSound)
		Self.sound = sound
	EndMethod

	Method Discard()
		Self.sound = null
	EndMethod
EndType

Function BlitzMaxDrawPoly:Int(vertices:Float[])
	DrawPoly vertices
	Return 0
EndFunction

Function BlitzMaxDrawRect:Int( x:Float, y:Float, w:Float, h:Float )
	DrawRect x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawOval:Int( x:Float, y:Float, w:Float, h:Float )
	DrawOval x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
	DrawLine x1, y1, x2, y2
	Return 0
EndFunction

Function BlitzMaxMillisecs:Int()
	Return MilliSecs()
EndFunction

Function BlitzMaxSetColor(r:Int, g:Int, b:Int)
	SetColor(r, g, b)
EndFunction

Function BlitzMaxSetBlend(blend:Int)
	Select blend
		Case 0
			SetBlend( ALPHABLEND )
		Case 1
			SetBlend( LIGHTBLEND )
	End Select
EndFunction

Function BlitzMaxSetAlpha(a:Float)
	SetAlpha(a)
EndFunction

Function BlitzMaxCls(r:Int = 0, g:Int = 0, b:Int = 0)
	SetClsColor(r, g, b)
	Cls
EndFunction

Type gxtkSurface
	Field w:Int, h:Int
	Field image:TImage

	Method setImage(image:TImage)
		Self.image = image
	EndMethod

	Method Width:Int()
		Return image.Width
	EndMethod

	Method Height:Int()
		Return image.Height
	EndMethod

	Method Discard()
	EndMethod
EndType

' ***** End mojo.bmax.bmx ******


Added RuntimeError if developer tries to load a non-valid sound format into MonkeyMax

--HG--
extra : convert_revision : svn%3Ae934d3cd-0d57-f34a-94d0-9e8d31ae1c29/trunk%40355

' ***** Start mojo.bmax.bmx ******

Global app:gxtkApp

Type gxtkApp
	Field ginput:gxtkInput
	Field gaudio:gxtkAudio
	Field ggraphics:gxtkGraphics

	Field dead:Int=0
	Field suspended:Int=0
	Field vloading:Int=0
	Field maxloading:Int=0
	Field updateRate:Int=0
	Field nextUpdate:Float=0
	Field updatePeriod:Float=0
	Field startMillis:Float=0

	Method New()' gxtkApp()
		app=Self
		ggraphics=New gxtkGraphics
	EndMethod

	Method Setup()
		ginput=New gxtkInput
		gaudio=New gxtkAudio

		bb_input_SetInputDevice(ginput)
		bb_audio_SetAudioDevice(gaudio)

		startMillis=BlitzMaxMillisecs()

		SetFrameRate( 0 )

		InvokeOnCreate()
		InvokeOnRender()
		Update()
	EndMethod

	Method Update()
		While Not AppTerminate()
			Local updates:Int = 0

			Local cont:Int = 1
			While (cont)
				nextUpdate:+updatePeriod
				InvokeOnUpdate()
				If Not updatePeriod Then cont = 0
				If nextUpdate>BlitzMaxMillisecs() Then cont = 0
				updates:+1
				If updates = 7 Then
					nextUpdate = BlitzMaxMillisecs()
					cont = 0
				EndIf
			Wend
			InvokeOnRender()
		Wend
	EndMethod

	Method InvokeOnCreate()
		If dead Return
		dead = 1
		OnCreate()
		dead = 0
	EndMethod

	Method InvokeOnUpdate()
		If dead Or suspended Or Not updateRate Or vloading Return
		OnUpdate()
	EndMethod

	Method InvokeOnRender()
		If dead Or suspended Return
		ggraphics.BeginRender()
		If vloading
			OnLoading()
		Else
			OnRender()
		EndIf
		ggraphics.EndRender()
	EndMethod

	Method SetFrameRate( fps:Int )
		If fps
			updatePeriod=1000.0/fps
			nextUpdate=BlitzMaxMillisecs() +updatePeriod
		Else
			updatePeriod=0
		EndIf
	EndMethod

	Method LoadState:String()
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		var state:String=file.data.state;
'		file.close();
'		if( state ) return state;
		Return ""
	EndMethod

	Method SaveState:Int( state:String )
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		file.data.state=state;
'		file.close();
		Return 0
	EndMethod

	Method LoadString:String( path:String )
		path = "data/" + path
		Return LoadText( path )
	EndMethod

	' ***** GXTK API *****

	Method GraphicsDevice:gxtkGraphics()
		Return ggraphics
	EndMethod

	Method InputDevice:gxtkInput()
		Return ginput
	EndMethod

	Method AudioDevice:gxtkAudio()
		Return gaudio
	EndMethod

	Method SetUpdateRate:Int(hertz:Int)
		updateRate = hertz
		If Not vloading Then SetFrameRate(updateRate)
		Return 0
	EndMethod

	Method MilliSecs:Int()
		Return BlitzMaxMillisecs() - startMillis
	EndMethod

	Method Loading:Int()
		Return vloading
	EndMethod

	Method OnCreate:Int()
		Return 0
	EndMethod

	Method OnUpdate:Int()
		Return 0
	EndMethod

	Method OnSuspend:Int()
		Return 0
	EndMethod

	Method OnResume:Int()
		Return 0
	EndMethod

	Method OnRender:Int()
		Return 0
	EndMethod

	Method OnLoading:Int()
		Return 0
	EndMethod
EndType

Type gxtkGraphics
	Field gmode:Int = 1

	Method Mode:Int()
		Return gmode
	EndMethod

	Method Cls:Int(r:Int = 0, g:Int = 0, b:Int = 0)
		BlitzMaxCls(r, g, b)
		Return 0
	EndMethod

	Method DrawPoint:Int(x:Float, y:Float)
		Plot x, y
	EndMethod

	Method LoadSurface:gxtkSurface(path:String)
		Local image:TImage = LoadImage("data/"+path)
		If image Then
			Local gs:gxtkSurface = New gxtkSurface
			gs.setImage(image)
			Return gs
		EndIf
		Return Null
	EndMethod

	Method BeginRender()
	EndMethod

	Method EndRender()
		Flip
	EndMethod

	Method SetColor:Int(r:Int, g:Int, b:Int)
		BlitzMaxSetColor(r, g, b)
		Return 0
	EndMethod

	Method SetAlpha:Int(a:Float)
		BlitzMaxSetAlpha(a)
		Return 0
	EndMethod

	Method SetBlend:Int(blend:Int)
		BlitzMaxSetBlend(blend)
		Return 0
	EndMethod

	Method Width:Int()
		Return GraphicsWidth()
	EndMethod

	Method Height:Int()
		Return GraphicsHeight()
	EndMethod

	Method SetScissor:Int(x:Int, y:Int, w:Int, h:Int)
		SetViewport(x, y, w, h) ' NOT TESTED!
		Return 0
	EndMethod

	Method SetMatrix:Int(ix:Float,iy:Float,jx:Float,jy:Float,tx:Float,ty:Float)
		Local sx:Float = Sqr( (ix*ix) + (jx*jx) )
		Local sy:Float = Sqr( (iy*iy) + (jy*jy) )
		Local rot:Float = -Atan2( jx, ix )
		SetTransform( rot, sx, sy )
		SetOrigin( tx, ty )
		Return 0
	EndMethod

	Method DrawSurface:Int(surface:gxtkSurface,x:Float,y:Float)
		DrawImage(surface.image, x, y, 0)
		Return 0
	EndMethod

	Method DrawSurface2:Int(surface:gxtkSurface,x:Float,y:Float, srcx:Int, srcy:Int, srcw:Int, srch:Int )
		DrawSubImageRect(surface.image, x, y, srcw, srch, srcx, srcy, srcw, srch)
		Return 0
	EndMethod

	Method DrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
		BlitzMaxDrawLine(x1, y1, x2, y2)
		Return 0
	EndMethod

	Method DrawOval:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawOval(x, y, w, h)
		Return 0
	EndMethod

	Method DrawPoly:Int(vertices:Float[])
		BlitzMaxDrawPoly( vertices )
		Return 0
	EndMethod

	Method DrawRect:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawRect(x, y, w, h)
		Return 0
	EndMethod
EndType

Type gxtkInput
	Method MouseX:Float()
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method MouseY:Float()
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method KeyDown:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB

		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseDown( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyDown( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method KeyHit:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseHit( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyHit( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method GetChar:Int()
		Return BRL.PolledInput.GetChar()
	EndMethod

	Method JoyX:Int( index:Int )
		Return Pub.FreeJoy.JoyX( index )
	EndMethod

	Method JoyY:Int( index:Int )
		Return Pub.FreeJoy.JoyY( index )
	EndMethod

	Method JoyZ:Int( index:Int )
		Return Pub.FreeJoy.JoyZ( index )
	EndMethod

	Method TouchX:Float( index:Int )
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method TouchY:Float( index:Int )
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method AccelX:Int()
		return 0
	EndMethod

	Method AccelY:Int()
		return 0
	EndMethod

	Method AccelZ:Int()
		return 0
	EndMethod

	Method SetKeyboardEnabled:Int( enabled:int )
		Return 0
	EndMethod
EndType

Type gxtkChannel
	Field channel:TChannel	' null then not playing
	Field sample:gxtkSample
	Field loops:int
	'Field transform:SoundTransform=new SoundTransform()
	'Field pausepos:Number
	Field state:int

	Method New()
		channel = New TChannel
	EndMethod
EndType

Type gxtkAudio
	Field amusicState:Int = 0
	Field channels:gxtkChannel[] = New gxtkChannel[33]

	Method New()
		For local i:Int = 0 To 33 - 1
			channels[i] = New gxtkChannel
		Next
	EndMethod

	Method MusicState:Int()
'		If( musicState = 1 And music.isPlaying() = False )
'			musicState = 0;
'		Endif
		Return amusicState
	EndMethod

	Method PlayMusic:Int( path:String, flags:Int )
		Return 0
	EndMethod

	Method ChannelState:int( channel:int )
		Return -1
	EndMethod

	Method StopMusic()
	EndMethod

	Method StopChannel( channel:Int )
	EndMethod

	Method PlaySample( sound:gxtkSample, channel:Int, flags:Int )
		Local chan:gxtkChannel = channels[channel]

		'If chan.state <> 0 Then chan.channel.Stop() <-- this crashes after the first play!?

		chan.sample = sound
		'chan.loops = flags ? 0x7fffffff : 0;
		'chan.channel = sample.sound.play( 0,chan.loops,chan.transform );
		'chan.channel = sound
		chan.state=1

		PlaySound( sound.sound, chan.channel )
	EndMethod

	Method SetPan( channel:Int, pan:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetPan(pan)
	EndMethod

	Method SetRate( channel:Int, rate:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetRate(rate)
	EndMethod

	Method PauseMusic:Int()
		Return 0
	EndMethod

	Method ResumeMusic:Int()
		Return 0
	EndMethod

	Method SetMusicVolume:Int( volume:Float )
		Return 0
	EndMethod

	Method SetVolume:Int( channel:Int, volume:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetVolume(volume)
		Return 0
	EndMethod

	Method LoadSample:gxtkSample( path:String )
		Local extension:String = ExtractExt( path)
		If extension = "ogg" Or extension = "wav" Then
			Local sound:TSound = LoadSound("data/"+path)
			If sound Then
				Local gs:gxtkSample = New gxtkSample
				gs.setSound(sound)
				Return gs
			EndIf
		Else
			RuntimeError "BlitzMax can only use ogg and wav file formats"
		EndIf
		Return Null
	EndMethod
EndType

Type gxtkSample
	Field sound:TSound

	Method setSound(sound:TSound)
		Self.sound = sound
	EndMethod

	Method Discard()
		Self.sound = null
	EndMethod
EndType

Function BlitzMaxDrawPoly:Int(vertices:Float[])
	DrawPoly vertices
	Return 0
EndFunction

Function BlitzMaxDrawRect:Int( x:Float, y:Float, w:Float, h:Float )
	DrawRect x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawOval:Int( x:Float, y:Float, w:Float, h:Float )
	DrawOval x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
	DrawLine x1, y1, x2, y2
	Return 0
EndFunction

Function BlitzMaxMillisecs:Int()
	Return MilliSecs()
EndFunction

Function BlitzMaxSetColor(r:Int, g:Int, b:Int)
	SetColor(r, g, b)
EndFunction

Function BlitzMaxSetBlend(blend:Int)
	Select blend
		Case 0
			SetBlend( ALPHABLEND )
		Case 1
			SetBlend( LIGHTBLEND )
	End Select
EndFunction

Function BlitzMaxSetAlpha(a:Float)
	SetAlpha(a)
EndFunction

Function BlitzMaxCls(r:Int = 0, g:Int = 0, b:Int = 0)
	SetClsColor(r, g, b)
	Cls
EndFunction

Type gxtkSurface
	Field w:Int, h:Int
	Field image:TImage

	Method setImage(image:TImage)
		Self.image = image
	EndMethod

	Method Width:Int()
		Return image.Width
	EndMethod

	Method Height:Int()
		Return image.Height
	EndMethod

	Method Discard()
	EndMethod
EndType

' ***** End mojo.bmax.bmx ******

' ***** Start mojo.bmax.bmx ******

Global app:gxtkApp

Type gxtkApp
	Field ginput:gxtkInput
	Field gaudio:gxtkAudio
	Field ggraphics:gxtkGraphics

	Field dead:Int=0
	Field suspended:Int=0
	Field vloading:Int=0
	Field maxloading:Int=0
	Field updateRate:Int=0
	Field nextUpdate:Float=0
	Field updatePeriod:Float=0
	Field startMillis:Float=0

	Method New()' gxtkApp()
		app=Self
		ggraphics=New gxtkGraphics
	EndMethod

	Method Setup()
		ginput=New gxtkInput
		gaudio=New gxtkAudio

		bb_input_SetInputDevice(ginput)
		bb_audio_SetAudioDevice(gaudio)

		startMillis=BlitzMaxMillisecs()

		SetFrameRate( 0 )

		InvokeOnCreate()
		InvokeOnRender()
		Update()
	EndMethod

	Method Update()
		While Not AppTerminate()
			Local updates:Int = 0

			Local cont:Int = 1
			While (cont)
				nextUpdate:+updatePeriod
				InvokeOnUpdate()
				If Not updatePeriod Then cont = 0
				If nextUpdate>BlitzMaxMillisecs() Then cont = 0
				updates:+1
				If updates = 7 Then
					nextUpdate = BlitzMaxMillisecs()
					cont = 0
				EndIf
			Wend
			InvokeOnRender()
		Wend
	EndMethod

	Method InvokeOnCreate()
		If dead Return
		dead = 1
		OnCreate()
		dead = 0
	EndMethod

	Method InvokeOnUpdate()
		If dead Or suspended Or Not updateRate Or vloading Return
		OnUpdate()
	EndMethod

	Method InvokeOnRender()
		If dead Or suspended Return
		ggraphics.BeginRender()
		If vloading
			OnLoading()
		Else
			OnRender()
		EndIf
		ggraphics.EndRender()
	EndMethod

	Method SetFrameRate( fps:Int )
		If fps
			updatePeriod=1000.0/fps
			nextUpdate=BlitzMaxMillisecs() +updatePeriod
		Else
			updatePeriod=0
		EndIf
	EndMethod

	Method LoadState:String()
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		var state:String=file.data.state;
'		file.close();
'		if( state ) return state;
		Return ""
	EndMethod

	Method SaveState:Int( state:String )
'		var file:SharedObject=SharedObject.getLocal( "gxtkapp" );
'		file.data.state=state;
'		file.close();
		Return 0
	EndMethod

	Method LoadString:String( path:String )
		path = "data/" + path
		Return LoadText( path )
	EndMethod

	' ***** GXTK API *****

	Method GraphicsDevice:gxtkGraphics()
		Return ggraphics
	EndMethod

	Method InputDevice:gxtkInput()
		Return ginput
	EndMethod

	Method AudioDevice:gxtkAudio()
		Return gaudio
	EndMethod

	Method SetUpdateRate:Int(hertz:Int)
		updateRate = hertz
		If Not vloading Then SetFrameRate(updateRate)
		Return 0
	EndMethod

	Method MilliSecs:Int()
		Return BlitzMaxMillisecs() - startMillis
	EndMethod

	Method Loading:Int()
		Return vloading
	EndMethod

	Method OnCreate:Int()
		Return 0
	EndMethod

	Method OnUpdate:Int()
		Return 0
	EndMethod

	Method OnSuspend:Int()
		Return 0
	EndMethod

	Method OnResume:Int()
		Return 0
	EndMethod

	Method OnRender:Int()
		Return 0
	EndMethod

	Method OnLoading:Int()
		Return 0
	EndMethod
EndType

Type gxtkGraphics
	Field gmode:Int = 1

	Method Mode:Int()
		Return gmode
	EndMethod

	Method Cls:Int(r:Int = 0, g:Int = 0, b:Int = 0)
		BlitzMaxCls(r, g, b)
		Return 0
	EndMethod

	Method DrawPoint:Int(x:Float, y:Float)
		Plot x, y
	EndMethod

	Method LoadSurface:gxtkSurface(path:String)
		Local image:TImage = LoadImage("data/"+path)
		If image Then
			Local gs:gxtkSurface = New gxtkSurface
			gs.setImage(image)
			Return gs
		EndIf
		Return Null
	EndMethod

	Method BeginRender()
	EndMethod

	Method EndRender()
		Flip
	EndMethod

	Method SetColor:Int(r:Int, g:Int, b:Int)
		BlitzMaxSetColor(r, g, b)
		Return 0
	EndMethod

	Method SetAlpha:Int(a:Float)
		BlitzMaxSetAlpha(a)
		Return 0
	EndMethod

	Method SetBlend:Int(blend:Int)
		BlitzMaxSetBlend(blend)
		Return 0
	EndMethod

	Method Width:Int()
		Return GraphicsWidth()
	EndMethod

	Method Height:Int()
		Return GraphicsHeight()
	EndMethod

	Method SetScissor:Int(x:Int, y:Int, w:Int, h:Int)
		SetViewport(x, y, w, h) ' NOT TESTED!
		Return 0
	EndMethod

	Method SetMatrix:Int(ix:Float,iy:Float,jx:Float,jy:Float,tx:Float,ty:Float)
		Local sx:Float = Sqr( (ix*ix) + (jx*jx) )
		Local sy:Float = Sqr( (iy*iy) + (jy*jy) )
		Local rot:Float = -Atan2( jx, ix )
		SetTransform( rot, sx, sy )
		SetOrigin( tx, ty )
		Return 0
	EndMethod

	Method DrawSurface:Int(surface:gxtkSurface,x:Float,y:Float)
		DrawImage(surface.image, x, y, 0)
		Return 0
	EndMethod

	Method DrawSurface2:Int(surface:gxtkSurface,x:Float,y:Float, srcx:Int, srcy:Int, srcw:Int, srch:Int )
		DrawSubImageRect(surface.image, x, y, srcw, srch, srcx, srcy, srcw, srch)
		Return 0
	EndMethod

	Method DrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
		BlitzMaxDrawLine(x1, y1, x2, y2)
		Return 0
	EndMethod

	Method DrawOval:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawOval(x, y, w, h)
		Return 0
	EndMethod

	Method DrawPoly:Int(vertices:Float[])
		BlitzMaxDrawPoly( vertices )
		Return 0
	EndMethod

	Method DrawRect:Int( x:Float, y:Float, w:Float, h:Float )
		BlitzMaxDrawRect(x, y, w, h)
		Return 0
	EndMethod
EndType

Type gxtkInput
	Method MouseX:Float()
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method MouseY:Float()
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method KeyDown:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB

		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseDown( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyDown( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method KeyHit:Int( key:Int )
		if( key = 384 ) key = 1 ' change TOUCH0 to MOUSE_LMB
		If( key >= 1 And key <= 3 )
			Return BRL.PolledInput.MouseHit( key )
		EndIf
		If key < 256
			Return BRL.PolledInput.KeyHit( key )
		Else
			Return 0
		EndIf
	EndMethod

	Method GetChar:Int()
		Return BRL.PolledInput.GetChar()
	EndMethod

	Method JoyX:Int( index:Int )
		Return Pub.FreeJoy.JoyX( index )
	EndMethod

	Method JoyY:Int( index:Int )
		Return Pub.FreeJoy.JoyY( index )
	EndMethod

	Method JoyZ:Int( index:Int )
		Return Pub.FreeJoy.JoyZ( index )
	EndMethod

	Method TouchX:Float( index:Int )
		Return BRL.PolledInput.MouseX()
	EndMethod

	Method TouchY:Float( index:Int )
		Return BRL.PolledInput.MouseY()
	EndMethod

	Method AccelX:Int()
		return 0
	EndMethod

	Method AccelY:Int()
		return 0
	EndMethod

	Method AccelZ:Int()
		return 0
	EndMethod

	Method SetKeyboardEnabled:Int( enabled:int )
		Return 0
	EndMethod
EndType

Type gxtkChannel
	Field channel:TChannel	' null then not playing
	Field sample:gxtkSample
	Field loops:int
	'Field transform:SoundTransform=new SoundTransform()
	'Field pausepos:Number
	Field state:int

	Method New()
		channel = New TChannel
	EndMethod
EndType

Type gxtkAudio
	Field amusicState:Int = 0
	Field channels:gxtkChannel[] = New gxtkChannel[33]

	Method New()
		For local i:Int = 0 To 33 - 1
			channels[i] = New gxtkChannel
		Next
	EndMethod

	Method MusicState:Int()
'		If( musicState = 1 And music.isPlaying() = False )
'			musicState = 0;
'		Endif
		Return amusicState
	EndMethod

	Method PlayMusic:Int( path:String, flags:Int )
		Return 0
	EndMethod

	Method ChannelState:int( channel:int )
		Return -1
	EndMethod

	Method StopMusic()
	EndMethod

	Method StopChannel( channel:Int )
	EndMethod

	Method PlaySample( sound:gxtkSample, channel:Int, flags:Int )
		Local chan:gxtkChannel = channels[channel]

		'If chan.state <> 0 Then chan.channel.Stop() <-- this crashes after the first play!?

		chan.sample = sound
		'chan.loops = flags ? 0x7fffffff : 0;
		'chan.channel = sample.sound.play( 0,chan.loops,chan.transform );
		'chan.channel = sound
		chan.state=1

		PlaySound( sound.sound, chan.channel )
	EndMethod

	Method SetPan( channel:Int, pan:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetPan(pan)
	EndMethod

	Method SetRate( channel:Int, rate:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetRate(rate)
	EndMethod

	Method PauseMusic:Int()
		Return 0
	EndMethod

	Method ResumeMusic:Int()
		Return 0
	EndMethod

	Method SetMusicVolume:Int( volume:Float )
		Return 0
	EndMethod

	Method SetVolume:Int( channel:Int, volume:Float )
		Local chan:gxtkChannel = channels[channel]
		chan.channel.SetVolume(volume)
		Return 0
	EndMethod

	Method LoadSample:gxtkSample( path:String )
		Local sound:TSound = LoadSound("data/"+path)
		If sound Then
			Local gs:gxtkSample = New gxtkSample
			gs.setSound(sound)
			Return gs
		EndIf
		Return Null
	EndMethod
EndType

Type gxtkSample
	Field sound:TSound

	Method setSound(sound:TSound)
		Self.sound = sound
	EndMethod

	Method Discard()
		Self.sound = null
	EndMethod
EndType

Function BlitzMaxDrawPoly:Int(vertices:Float[])
	DrawPoly vertices
	Return 0
EndFunction

Function BlitzMaxDrawRect:Int( x:Float, y:Float, w:Float, h:Float )
	DrawRect x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawOval:Int( x:Float, y:Float, w:Float, h:Float )
	DrawOval x, y, w, h
	Return 0
EndFunction

Function BlitzMaxDrawLine:Int( x1:Float,y1:Float,x2:Float,y2:Float )
	DrawLine x1, y1, x2, y2
	Return 0
EndFunction

Function BlitzMaxMillisecs:Int()
	Return MilliSecs()
EndFunction

Function BlitzMaxSetColor(r:Int, g:Int, b:Int)
	SetColor(r, g, b)
EndFunction

Function BlitzMaxSetBlend(blend:Int)
	Select blend
		Case 0
			SetBlend( ALPHABLEND )
		Case 1
			SetBlend( LIGHTBLEND )
	End Select
EndFunction

Function BlitzMaxSetAlpha(a:Float)
	SetAlpha(a)
EndFunction

Function BlitzMaxCls(r:Int = 0, g:Int = 0, b:Int = 0)
	SetClsColor(r, g, b)
	Cls
EndFunction

Type gxtkSurface
	Field w:Int, h:Int
	Field image:TImage

	Method setImage(image:TImage)
		Self.image = image
	EndMethod

	Method Width:Int()
		Return image.Width
	EndMethod

	Method Height:Int()
		Return image.Height
	EndMethod

	Method Discard()
	EndMethod
EndType

' ***** End mojo.bmax.bmx ******