Use correct types for handling pointer size/memory addresses.
Make use of boost optional as GetFnOffsetInModules return type. The
unsigned return type does not allow for negative error values anymore,
which we did not make use of anyway, and optional is more explicit.
Replaces workaround/error detection from the commits
114495e59fa3e7958f16Fixes#1924
* When unloading the overlay DLL freeD3D9Hook was called *after* unloading the DLL. This is incorrect.
** For applications that actually use D3D and we inject into, the DLL is
never unloaded because we hold a refernce to it ourselves. So in this case,
the problematic code is never executed.
** When not actually injecting, the DLL will be unloaded, and then the
function freeD3D9Hook is called which is from that DLL.
** As we’re executing code in undefined space which previously held the
function, this may or may not crash.
* Remove the freeD3D9Hook function
** The function freeD3D9Hook just resets some fields to NULL and a flag
to false. As the DLL is unloaded anyway, these are never used again.
Hence, we can just remove it altogether (rather than just calling it
before unloading).
This commit adds MinHook as a 3rd party
dependency and adds an alternative HardHook
implementation that makes use of MinHook.
This new MinHook-based HardHook implementation
allows us to provide an overlay for Mumble on
Windows x64.
The x64 overlay hasn't seen much testing in
real-world x64 games, except some minor testing
for World of Warcraft running in x64 mode, where
it works just fine.
There seems to be a compatibility with the Uplay
overlay, which causes Far Cry 4 to crash at the
"Press any key to continue" screen that is shown
just after launching the game. However,
Assassin's Creed: Unity works fine, so it might
just be a Far Cry 4 issue.
The x64 overlay also seems to interoperate with
the Steam overlay just fine.
I think this is a good starting point for the
feature. Let us get it into snapshots and let
us try to squash any addition bugs we find.
* Make cpp-local functions static so they are local file/translation unit
scope.
* Remove unused variables uiAudioCount and bVideoHooked
* Comment extern declarations, where there definitions are located.
* Improve constant naming JUMPOP_OFFSET => JMP_OP_SIZE.
* Remove extern declaration from method definitions.
* Adjust type declaration formatting to typical formatting.
* Use voidFunc typedef to pass around function address pointers.
** C++-style casts instead of C-style raw casts.
* Other minor formatting (/whitespace) adjustments
* Fix log text.
* Improve log text.
* Consistent, improved varnaming in d3d9.cpp on address calculation;
naming fn and base.
* Separate DXGI logic from D3D10 into a separate file dxgi.cpp
* Structure code and logic, introduce additional functions
* Introduce constants
* Code commenting
* d3d9.cpp:
** Access devMap via std::find rather than operator[]
** Introduce class Stash to temporarily set variable value and revert on
destruction
** Move logic to function findOriginalDevice
** Use widestring for modulename (consistency)
** Implement Hook for Direct3DCreate9Ex
** Move function IsFnInModule to common lib.cpp/.h
* opengl.cpp:
** Add whitespace to format code
** Fix logging scope prefix
** Remove static global variable
Extend to handle library freeing.
Codeformatting and -cleanup, robustness, and make debugoutput more consistent.
* Indroduce hook for freeing loaded DLLs.
This separates logic between loading and freeing, leading to adjustments to
the recently introduced checks for freed DLLs.
* In HardHook::reset() do a clean and complete reset rather than minimal.
* Memvarinitialisation in HardHook
* Remove logically unused variable bPresenting in d3d9.cpp (always false)
* In d3d10.cpp prefix debugoutput with D3D10 consistently; no more DXGI
which is ambiguous with a d3d11 file that also uses DXGI.
* Consistently use ods instead of fods in the overlay files.
Not in HardHook yet, as that class is used in the Mumble client as well atm
* Fix forwarded return value types (LONG to ULONG)
* TODOs for hook-call-logic in multiple places
* Commenting, formatting and scope / order adjustments
* Introduce variables with constant values (replacing magic/undescriptive constants/numbers)
We were getting unbalanced AddRef/Releases on Direct3D9 apps running on Windows 8 that ran
fine on Windows 7. Windows 8 seems to be doing somthing funky with the internal ref count
of IDirect3DDevice9.
For now, piggyback on the orignal ref count methods to be able to determine when to release
ourselves. And cross our fingers that we won't be getting useless ref counts from some other
overlay.
This is a band-aid solution until we find something better.
Factor fods and its base function out to ods.h/cpp and use it in HardHook as well as lib functionality. This also fixes previous divergence between the two ods functions.
Also include interface replacement code. Not used yet though, it would fail if the game did device->GetSwapChain->GetDevice, unless we patch all of those as well.
git-svn-id: https://mumble.svn.sourceforge.net/svnroot/mumble/trunk@1426 05730e5d-ab1b-0410-a4ac-84af385074fa
