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SaveState: Store the current PCSX2 version in the save state

This commit is contained in:
Stenzek 2023-07-30 16:44:12 +10:00 committed by Connor McLaughlin
parent fb242274d5
commit ce96d4bcc5
1 changed files with 28 additions and 3 deletions
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31
pcsx2/SaveState.cpp
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@ -40,6 +40,7 @@
#include "VMManager.h"
#include "VUmicro.h"
#include "ps2/BiosTools.h"
#include "svnrev.h"
#include "common/Error.h"
#include "common/FileSystem.h"
@ -336,6 +337,7 @@ void memLoadingState::FreezeMem( void* data, int size )
static const char* EntryFilename_StateVersion = "PCSX2 Savestate Version.id";
static const char* EntryFilename_Screenshot = "Screenshot.png";
static const char* EntryFilename_InternalStructures = "PCSX2 Internal Structures.dat";
static constexpr u32 STATE_PCSX2_VERSION_SIZE = 32;
struct SysState_Component
{
@ -938,9 +940,26 @@ static bool SaveState_AddToZip(zip_t* zf, ArchiveEntryList* srclist, SaveStateSc
// version indicator
{
zip_source_t* const zs = zip_source_buffer(zf, &g_SaveVersion, sizeof(g_SaveVersion), 0);
struct VersionIndicator
{
u32 save_version;
char version[STATE_PCSX2_VERSION_SIZE];
};
VersionIndicator* vi = static_cast<VersionIndicator*>(std::malloc(sizeof(VersionIndicator)));
vi->save_version = g_SaveVersion;
#if GIT_TAGGED_COMMIT
StringUtil::Strlcpy(vi->version, GIT_TAG, std::size(vi->version));
#else
StringUtil::Strlcpy(vi->version, "Unknown", std::size(vi->version));
#endif
zip_source_t* const zs = zip_source_buffer(zf, vi, sizeof(*vi), 1);
if (!zs)
{
std::free(vi);
return false;
}
// NOTE: Source should not be freed if successful.
const s64 fi = zip_file_add(zf, EntryFilename_StateVersion, zs, ZIP_FL_ENC_UTF_8);
@ -1034,6 +1053,12 @@ static bool CheckVersion(const std::string& filename, zip_t* zf, Error* error)
return false;
}
char version_string[STATE_PCSX2_VERSION_SIZE];
if (zip_fread(zff.get(), version_string, STATE_PCSX2_VERSION_SIZE) == STATE_PCSX2_VERSION_SIZE)
version_string[STATE_PCSX2_VERSION_SIZE - 1] = 0;
else
StringUtil::Strlcpy(version_string, "Unknown", std::size(version_string));
// Major version mismatch. Means we can't load this savestate at all. Support for it
// was removed entirely.
// check for a "minor" version incompatibility; which happens if the savestate being loaded is a newer version
@ -1041,9 +1066,9 @@ static bool CheckVersion(const std::string& filename, zip_t* zf, Error* error)
if (savever > g_SaveVersion || (savever >> 16) != (g_SaveVersion >> 16))
{
Error::SetString(error, fmt::format("The state is an unsupported version. (PCSX2 ver={:x}, state ver={:x}).\n"
"Option 1: Download an older PCSX2 version from pcsx2.net and make a memcard save like on the physical PS2.\n"
"Option 1: Download PCSX2 {} from pcsx2.net and make a memcard save like on the physical PS2.\n"
"Option 2: Delete the savestates.",
g_SaveVersion, savever));
g_SaveVersion, savever, version_string));
return false;
}