Syping/libragephoto
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RagePhoto(A): add jpegSign() function

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- RagePhotoC: add ragephoto_getphotosign() ragephoto_getphotosignf()
ragephotodata_getphotosign() and ragephotodata_getphotosignf() functions
This commit is contained in:
Syping 2023-03-15 08:22:38 +01:00
parent 564a8c92b5
commit cac7fd221f
4 changed files with 110 additions and 0 deletions

60
src/RagePhoto.cpp
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@ -120,6 +120,20 @@ inline void uInt32ToCharLE(uint32_t x, char *y)
y[2] = x >> 16;
y[3] = x >> 24;
}
inline uint32_t joaatFromInitial(const char *data, size_t size, uint32_t init_val)
{
uint32_t val = init_val;
for (size_t i = 0; i != size; i++) {
val += data[i];
val += (val << 10);
val ^= (val >> 6);
}
val += (val << 3);
val ^= (val >> 11);
val += (val << 15);
return val;
}
/* END OF STATIC LIBRARY FUNCTIONS */
/* BEGIN OF RAGEPHOTO CLASS */
@ -526,6 +540,7 @@ bool RagePhoto::load(const char *data, size_t length, RagePhotoData *rp_data, Ra
std::cout << "jsonBuffer: " << rp_data->jsonBuffer << std::endl;
std::cout << "jsonOffset: " << rp_data->jsonOffset << std::endl;
std::cout << "json: " << rp_data->json << std::endl;
std::cout << "sign: " << jpegSign(rp_data) << std::endl;
std::cout << "titlBuffer: " << rp_data->titlBuffer << std::endl;
std::cout << "titlOffset: " << rp_data->titlOffset << std::endl;
std::cout << "title: " << rp_data->title << std::endl;
@ -617,6 +632,29 @@ const char* RagePhoto::jpegData() const
return m_data->jpeg;
}
uint64_t RagePhoto::jpegSign(uint32_t photoFormat, RagePhotoData *rp_data)
{
if (photoFormat == PhotoFormat::GTA5)
return (0x100000000000000ULL | joaatFromInitial(rp_data->jpeg, rp_data->jpegSize, SignInitials::SIGTA5));
else
return 0;
}
uint64_t RagePhoto::jpegSign(RagePhotoData *rp_data)
{
return jpegSign(rp_data->photoFormat, rp_data);
}
uint64_t RagePhoto::jpegSign(uint32_t photoFormat) const
{
return jpegSign(photoFormat, m_data);
}
uint64_t RagePhoto::jpegSign() const
{
return jpegSign(m_data->photoFormat, m_data);
}
uint32_t RagePhoto::jpegSize() const
{
if (m_data->jpeg)
@ -1273,6 +1311,28 @@ const char* ragephoto_getphotoheader(ragephoto_t instance)
return ragePhoto->header();
}
uint64_t ragephoto_getphotosign(ragephoto_t instance)
{
RagePhoto *ragePhoto = static_cast<RagePhoto*>(instance);
return ragePhoto->jpegSign();
}
uint64_t ragephoto_getphotosignf(ragephoto_t instance, uint32_t photoFormat)
{
RagePhoto *ragePhoto = static_cast<RagePhoto*>(instance);
return ragePhoto->jpegSign(photoFormat);
}
uint64_t ragephotodata_getphotosign(RagePhotoData *rp_data)
{
return RagePhoto::jpegSign(rp_data);
}
uint64_t ragephotodata_getphotosignf(RagePhotoData *rp_data, uint32_t photoFormat)
{
return RagePhoto::jpegSign(photoFormat, rp_data);
}
uint32_t ragephoto_getphotosize(ragephoto_t instance)
{
RagePhoto *ragePhoto = static_cast<RagePhoto*>(instance);