#include "livecaptions.h"


bool livecaptions::attach_function()
{
    
//         .text:0000000180001C98                 push    rbx
// .text:0000000180001C9A                 sub     rsp, 20h
// .text:0000000180001C9E                 mov     rbx, rcx
// .text:0000000180001CA1                 call    memmove_0
// .text:0000000180001CA6                 mov     rax, rbx
// .text:0000000180001CA9                 add     rsp, 20h
// .text:0000000180001CAD                 pop     rbx
// .text:0000000180001CAE                 retn
    HookParam hp;
    hp.address=(uintptr_t)GetProcAddress(GetModuleHandle(L"vcruntime140_app.dll"),"memmove");
    hp.text_fun=[](hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len){
        BYTE sig[]={
            0x40,0x53,0x48,0x83,0xEC,0x20,0x48,0x8B,0xD9,
            0xE8,XX4
        };
        auto a1=stack->retaddr-sizeof(sig);
        if((stack->retaddr>(uintptr_t)GetModuleHandle(L"Microsoft.CognitiveServices.Speech.extension.embedded.sr.dll")))
        if(memcmp((void*)a1,&sig,sizeof(sig)-4)==0){
            static std::set<uintptr_t>once;
            if(once.find(stack->retaddr)!=once.end())return;
            once.insert(stack->retaddr);
            // hp->text_fun=nullptr;
            // hp->type=HOOK_EMPTY;

            HookParam hpinternal;
            hpinternal.address =a1;// 0xE551+(uintptr_t)GetModuleHandle(L"Microsoft.CognitiveServices.Speech.extension.embedded.sr.dll");
            hpinternal.type = USING_STRING | CODEC_UTF8|FULL_STRING;
            hpinternal.text_fun = [](hook_stack *stack, HookParam *hp, uintptr_t *data, uintptr_t *split, size_t *len)
            {
                auto ptr = stack->rdx;
                auto size = stack->r8;
                if (size == strnlen((char *)ptr, TEXT_BUFFER_SIZE) )//否则有短acsii
                {
                    *data = ptr;
                    *len = size;
                }
            };
            NewHook(hpinternal, "std::_Char_traits<char,int>::copy(void *, const void *, size_t)");
        }
    };
    
    return NewHook(hp,"vcruntime140_app:memmove");
}