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local scripts={}

local function registerBigEndianInt16()
scripts['2 Byte Big Endian'].type=registerCustomTypeAutoAssembler([[

alloc(TypeName,256)

alloc(ByteSize,4)

alloc(ConvertRoutine,1024)

alloc(ConvertBackRoutine,1024)



TypeName:

db '2 Byte Big Endian',0



ByteSize:

dd 2



//The convert routine should hold a routine that converts the data to an integer (in eax)

//function declared as: stdcall int ConvertRoutine(unsigned char *input);

//Note: Keep in mind that this routine can be called by multiple threads at the same time.

ConvertRoutine:

//jmp dllname.functionname

[64-bit]

//or manual:

//parameters: (64-bit)

//rcx=address of input

xor eax,eax

mov ax,[rcx] //eax now contains the bytes 'input' pointed to

xchg ah,al //convert to big endian



ret

[/64-bit]



[32-bit]

//jmp dllname.functionname

//or manual:

//parameters: (32-bit)

push ebp

mov ebp,esp

//[ebp+8]=input

//example:

mov eax,[ebp+8] //place the address that contains the bytes into eax

mov ax,[eax] //place the bytes into eax so it's handled as a normal 4 byte value

and eax,ffff //cleanup

xchg ah,al //convert to big endian



pop ebp

ret 4

[/32-bit]



//The convert back routine should hold a routine that converts the given integer back to a row of bytes (e.g when the user wats to write a new value)

//function declared as: stdcall void ConvertBackRoutine(int i, unsigned char *output);

ConvertBackRoutine:

//jmp dllname.functionname

//or manual:

[64-bit]

//parameters: (64-bit)

//ecx=input

//rdx=address of output

//example:

xchg ch,cl //convert the little endian input into a big endian input

mov [rdx],cx //place the integer the 4 bytes pointed to by rdx



ret

[/64-bit]



[32-bit]

//parameters: (32-bit)

push ebp

mov ebp,esp

//[ebp+8]=input

//[ebp+c]=address of output

//example:

push eax

push ebx

mov eax,[ebp+8] //load the value into eax

mov ebx,[ebp+c] //load the address into ebx



//convert the value to big endian

xchg ah,al



mov [ebx],ax //write the value into the address

pop ebx

pop eax



pop ebp

ret 8

[/32-bit]

]])
end

local function registerBigEndianInt32()
scripts['4 Byte Big Endian'].type=registerCustomTypeAutoAssembler([[

alloc(TypeName,256)

alloc(ByteSize,4)

alloc(ConvertRoutine,1024)

alloc(ConvertBackRoutine,1024)



TypeName:

db '4 Byte Big Endian',0



ByteSize:

dd 4



//The convert routine should hold a routine that converts the data to an integer (in eax)

//function declared as: stdcall int ConvertRoutine(unsigned char *input);

//Note: Keep in mind that this routine can be called by multiple threads at the same time.

ConvertRoutine:

//jmp dllname.functionname

[64-bit]

//or manual:

//parameters: (64-bit)

//rcx=address of input

xor eax,eax

mov eax,[rcx] //eax now contains the bytes 'input' pointed to

bswap eax //convert to big endian



ret

[/64-bit]



[32-bit]

//jmp dllname.functionname

//or manual:

//parameters: (32-bit)

push ebp

mov ebp,esp

//[ebp+8]=input

//example:

mov eax,[ebp+8] //place the address that contains the bytes into eax

mov eax,[eax] //place the bytes into eax so it's handled as a normal 4 byte value



bswap eax



pop ebp

ret 4

[/32-bit]



//The convert back routine should hold a routine that converts the given integer back to a row of bytes (e.g when the user wats to write a new value)

//function declared as: stdcall void ConvertBackRoutine(int i, unsigned char *output);

ConvertBackRoutine:

//jmp dllname.functionname

//or manual:

[64-bit]

//parameters: (64-bit)

//ecx=input

//rdx=address of output

//example:

bswap ecx //convert the little endian input into a big endian input

mov [rdx],ecx //place the integer the 4 bytes pointed to by rdx



ret

[/64-bit]



[32-bit]

//parameters: (32-bit)

push ebp

mov ebp,esp

//[ebp+8]=input

//[ebp+c]=address of output

//example:

push eax

push ebx

mov eax,[ebp+8] //load the value into eax

mov ebx,[ebp+c] //load the address into ebx



//convert the value to big endian

bswap eax



mov [ebx],eax //write the value into the address

pop ebx

pop eax



pop ebp

ret 8

[/32-bit]

]])
end


local function registerBigEndianFloat()
scripts['Float Big Endian'].type=registerCustomTypeAutoAssembler([[

alloc(TypeName,256)

alloc(ByteSize,4)

alloc(ConvertRoutine,1024)

alloc(ConvertBackRoutine,1024)

alloc(UsesFloat,1)

  

  

TypeName:

db 'Float Big Endian',0

  

  

ByteSize:

dd 4



UsesFloat:

db 1

  

  

ConvertRoutine:

[64-bit]

xor eax,eax

mov eax,[rcx] //eax now contains the bytes 'input' pointed to

bswap eax //convert to big endian

ret

[/64-bit]



[32-bit]

push ebp

mov ebp,esp

mov eax,[ebp+8] //place the address that contains the bytes into eax

mov eax,[eax] //place the bytes into eax so it's handled as a normal 4 byte value

bswap eax

pop ebp

ret 4

[/32-bit]

  

  

ConvertBackRoutine:

[64-bit]

bswap ecx //convert the little endian input into a big endian input

mov [rdx],ecx //place the integer the 4 bytes pointed to by rdx

ret

[/64-bit]



[32-bit]

push ebp

mov ebp,esp

push eax

push ebx

mov eax,[ebp+8] //load the value into eax

mov ebx,[ebp+c] //load the address into ebx

bswap eax

  

mov [ebx],eax //write the value into the address

pop ebx

pop eax

pop ebp

ret 8

[/32-bit] 

]])
end


scripts['2 Byte Big Endian']={func=registerBigEndianInt16,reg='EnableBigEndianInt16'}
scripts['4 Byte Big Endian']={func=registerBigEndianInt32,reg='EnableBigEndianInt32'}
scripts['Float Big Endian']={func=registerBigEndianFloat,reg='EnableBigEndianFloat'}
local scriptnames={'2 Byte Big Endian','4 Byte Big Endian','Float Big Endian'}


--when loaded check if it should load the custom types
local i
local s=getSettings()
for i=1,#scriptnames do 
  if (s.Value[scripts[scriptnames[i]].reg]=='1') then
    scripts[scriptnames[i]].func()
  end
end

local sf=getSettingsForm()

local CustomTypesPage=nil
for i=0, sf.SettingsPageControl.PageCount-1 do
  if sf.SettingsPageControl.Page[i].Name=='CustomTypes' then --Do NOT translate this
    CustomTypesPage=sf.SettingsPageControl.Page[i]
  end
end
if CustomTypesPage==nil then
  --first script to add it
  CustomTypesPage=sf.SettingsPageControl.addTab()
  CustomTypesPage.Name='CustomTypes' --again, do NOT translate this
  CustomTypesPage.Caption=translate('Extra Custom Types')

  local insertNode=sf.SettingsTreeView.Items[3]  --insert it near the unrandomizer since it'd be used as often as that setting
  local node=sf.SettingsTreeView.Items.insert(insertNode, CustomTypesPage.Caption)
  node.data=userDataToInteger(CustomTypesPage)

  local clb=createCheckListBox(CustomTypesPage);
  clb.Align='alClient'
  clb.Name='List'
end


for i=1, #scriptnames do
  CustomTypesPage.List.Items.Add(scriptnames[i])
  CustomTypesPage.List.Checked[CustomTypesPage.List.Items.Count-1]=scripts[scriptnames[i]].type~=nil
end

local oldOnClose=sf.OnClose
sf.OnClose=function(sender, closeAction)
  local result=closeAction
  if oldOnClose~=nil then
    result=oldOnClose(sender, closeAction)
  end
  
  if (result==caHide) and (sender.ModalResult==mrOK) then
    local i
    for i=0, CustomTypesPage.List.Items.Count-1 do
      local ctname=CustomTypesPage.List.Items[i]
      
      
      if scripts[ctname] then --known name
        if CustomTypesPage.List.Checked[i] then
          if scripts[ctname].type==nil then
            scripts[ctname].func()                    
          end               
          local regname=scripts[ctname].reg;
          s.Value[scripts[ctname].reg]='1' 
         -- print(s.ClassName)
        else
          
          if scripts[ctname].type then
            --print("destroy")
            scripts[ctname].type.destroy()
            scripts[ctname].type=nil
          end
          s.Value[scripts[ctname].reg]='0'
       
        end
      end
    end
  end
  return result
end