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XamUserGetDeviceContext

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This commit is contained in:
Ben Vanik 2014-08-04 22:02:19 -07:00
parent 8460afadd3
commit 4e276695bf
1 changed files with 25 additions and 0 deletions
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25
src/xenia/kernel/xam_input.cc
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@ -202,6 +202,30 @@ SHIM_CALL XamInputGetKeystrokeEx_shim(
}
SHIM_CALL XamUserGetDeviceContext_shim(
PPCContext* ppc_state, KernelState* state) {
uint32_t user_index = SHIM_GET_ARG_32(0);
uint32_t unk = SHIM_GET_ARG_32(1);
uint32_t out_ptr = SHIM_GET_ARG_32(2);
XELOGD(
"XamUserGetDeviceContext(%d, %d, %.8X)",
user_index,
unk,
out_ptr);
// Games check the result - usually with some masking.
// If this function fails they assume zero, so let's fail AND
// set zero just to be safe.
SHIM_SET_MEM_32(out_ptr, 0);
if (!user_index || (user_index & 0xFF) == 0xFF) {
SHIM_SET_RETURN_32(0);
} else {
SHIM_SET_RETURN_32(-1);
}
}
} // namespace kernel
} // namespace xe
@ -215,4 +239,5 @@ void xe::kernel::xam::RegisterInputExports(
SHIM_SET_MAPPING("xam.xex", XamInputSetState, state);
SHIM_SET_MAPPING("xam.xex", XamInputGetKeystroke, state);
SHIM_SET_MAPPING("xam.xex", XamInputGetKeystrokeEx, state);
SHIM_SET_MAPPING("xam.xex", XamUserGetDeviceContext, state);
}