C++17ification!
- Filesystem interaction now uses std::filesystem::path.
- Usage of const char*, std::string have been changed to
std::string_view where appropriate.
- Usage of printf-style functions changed to use fmt.
Some titles, when using XamEnumerate synchronously, expect X_ERROR_NO_MORE_FILES as the return value.
Some titles, when using XamEnumerate asynchronously, expect X_ERROR_FUNCTION_FAILED as the overlapped result.
Resource locators are just strings that say where to find a resource, they can either point to a file path or to an XEX resource.
Normally the Gamercard/SharedSystem exports use XamBuildResourceLocator to make a locator for the resources inside xam.xex.
But since our xam won't have those resources I've made it point them to a local file instead (by passing 0 as the module param for XamBuildResourceLocator).
The resources will have to be extracted to the XEX's local path for it to find them though (and XEX will need to have media:\ symlinked too)
The XamFormat*String exports are really windows-only right now, but they'll at least empty the buffer for other platforms.
They'll also always output MM/DD/YYYY no matter what locale the system is, on 360 this is localized properly of course.
I've renamed XamBuildSharedResourceLocator_ to XamBuildLegacySystemResourceLocator too since that seems to be the proper name for it.
In earlier Xams this just pointed to ...SharedSystemResourceLocator (as does this code), but later versions seem to have their own function.
Code is mainly just copy/pasted from kernel/util/xex2.cc, I've tried fixing it up to work better in a class, but there's probably some things I missed.
Also includes some minor improvements to the XEX loader, like being able to try both XEX keys (retail/devkit) automatically, and some fixes to how the base address is determined.
(Previously there was code that would get base address from optional header, code that'd get it from xex_security_info, code that'd use a stored base address value...
Now everything reads it from a single stored value instead, which is set either from the xex_security_info, or if it exists from the optional header instead.
Maybe this can help improve compatibility with any weird XEX's that don't have a base address optional header?)
Compressed XEX loader also has some extra checks to make sure the compressed data hash matches what's expected.
Might increase loading times by a fraction, but could save reports from people unknowingly using corrupt XEXs.
(still no checks for non-compressed data though, maybe need to compare data with xex_security_info->ImageHash?)
This is a regression in functionality and performance, but a much better
foundation for the future of the project (I think). It can run basic
apps under an SSA interpreter but doesn't support some of the features
required to do real 360 apps yet.
This should make it easier to find files and (in the future) split things
up into separate libraries.
It also changes around emulator initialization to make it a little more
difficult to do things out of order and a little more sensible as to when
real init work happens.
Also adding a skeleton audio system/driver and reworking CPU register
access to be more extensible.
