Function at 0x40c3d0
Capabilities:
Get file size
Read file on windows

Disassembly:
sub esp, 0x11c
push ebx
push ebp
push esi
push edi
mov edi, 0x684c14
or ecx, 0xffffffff
xor eax, eax
lea edx, [esp + 0x28]
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
mov byte [esp + 0x28], 0
mov esi, edi
mov ebx, ecx
mov edi, edx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, ebx
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
mov ecx, ebx
mov ebp, dword [esp + 0x130]
and ecx, 3
lea edx, [esp + 0x28]
rep movsb byte es:[edi], byte [esi]
mov edi, ebp
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
not ecx
sub edi, ecx
push eax
mov esi, edi
mov ebx, ecx
mov edi, edx
or ecx, 0xffffffff
repne scasb al, byte es:[edi]
mov ecx, ebx
dec edi
shr ecx, 2
rep movsd dword es:[edi], dword [esi]
push 0x80
push 3
mov ecx, ebx
push eax
push eax
and ecx, 3
lea eax, [esp + 0x3c]
push 0x80000000
rep movsb byte es:[edi], byte [esi]
push eax
call dword [sym.imp.KERNEL32.dll_CreateFileA]
mov ebx, eax
cmp ebx, 0xffffffff
je 0x40c57b
push 0
push ebx
call dword [sym.imp.KERNEL32.dll_GetFileSize]
push ebp
lea esi, [eax - 2]
push 0x33b
push str.C:SOURCEBASEDEMOMyDDrawSourceGameTool.cpp
push esi
call fcn.00415350
mov edi, eax
add esp, 0x10
test edi, edi
jne 0x40c49c
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x11c
ret
mov edx, dword [esp + 0x134]
mov ebp, dword [sym.imp.KERNEL32.dll_ReadFile]
lea ecx, [esp + 0x20]
push 0
push ecx
push 2
push edx
push ebx
call ebp
lea eax, [esp + 0x20]
push 0
push eax
push esi
push edi
push ebx
call ebp
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
mov edx, dword [esp + 0x134]
mov ebp, dword [esp + 0x130]
xor ecx, ecx
push ebp
mov cx, word [edx]
push 0x340
shl ecx, 2
push str.C:SOURCEBASEDEMOMyDDrawSourceGameTool.cpp
push ecx
call fcn.00415350
add esp, 0x10
mov dword [esp + 0x14], eax
test eax, eax
jne 0x40c503
push ebp
push 0x341
jmp 0x40c56d
mov edx, dword [esp + 0x134]
xor eax, eax
xor esi, esi
xor ecx, ecx
mov ax, word [edx]
test eax, eax
jbe 0x40c542
mov ebp, eax
mov dx, word [ecx + edi]
mov ax, word [edi + ecx + 2]
and eax, 0xffff
and edx, 0xffff
imul eax, edx
dec ebp
lea ecx, [ecx + eax + 4]
lea esi, [esi + eax*2 + 4]
jne 0x40c519
mov ebp, dword [esp + 0x130]
push ebp
push 0x34a
push str.C:SOURCEBASEDEMOMyDDrawSourceGameTool.cpp
push esi
call fcn.00415350
xor edx, edx
add esp, 0x10
cmp eax, edx
mov dword [esp + 0x24], eax
jne 0x40c588
push ebx
call dword [sym.imp.KERNEL32.dll_CloseHandle]
push ebp
push 0x34b
push str.C:SOURCEBASEDEMOMyDDrawSourceGameTool.cpp
push edi
call fcn.00415390
add esp, 0x10
pop edi
pop esi
pop ebp
xor eax, eax
pop ebx
add esp, 0x11c
ret
mov ecx, dword [esp + 0x134]
xor esi, esi
mov dword [esp + 0x18], edx
cmp word [ecx], dx
jbe 0x40c668
mov ecx, dword [esp + 0x14]
mov dword [esp + 0x10], ecx
mov ecx, dword [esp + 0x10]
lea ebp, [eax + esi]
add edx, 4
add esi, 4
mov dword [ecx], ebp
mov cx, word [edx + edi - 4]
mov bx, word [edi + edx - 2]
mov word [ebp], cx
mov word [eax + esi - 2], bx
and ebx, 0xffff
and ecx, 0xffff
imul ebx, ecx
test ebx, ebx
jbe 0x40c638
mov dword [esp + 0x1c], ebx
movzx cx, byte [edx + edi]
mov eax, dword [0x6955f4]
mov ebp, dword [0x425690]
lea ecx, [ecx + ecx*2]
xor ebx, ebx
and ecx, 0xffff
add esi, 2
add ecx, eax
xor eax, eax
mov al, byte [ecx + 2]
mov bl, byte [ecx + 1]
mov bp, word [ebp + eax*4]
mov eax, dword [0x42568c]
or bp, word [eax + ebx*4]
xor eax, eax
mov al, byte [ecx]
mov ecx, dword [0x425688]
or bp, word [ecx + eax*4]
mov eax, dword [esp + 0x24]
mov ecx, dword [esp + 0x1c]
inc edx
mov word [eax + esi - 2], bp
dec ecx
mov dword [esp + 0x1c], ecx
jne 0x40c5df
mov ebx, dword [esp + 0x10]
mov ebp, dword [esp + 0x134]
mov ecx, dword [esp + 0x18]
add ebx, 4
mov dword [esp + 0x10], ebx
xor ebx, ebx
mov bx, word [ebp]
inc ecx
cmp ecx, ebx
mov dword [esp + 0x18], ecx
jb 0x40c5a6
mov ebp, dword [esp + 0x130]
push ebp
push 0x35e
push str.C:SOURCEBASEDEMOMyDDrawSourceGameTool.cpp
push edi
call fcn.00415390
mov eax, dword [esp + 0x24]
add esp, 0x10
pop edi
pop esi
pop ebp
pop ebx
add esp, 0x11c
ret