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RtlUnicodeToMultiByteN.

This commit is contained in:
gibbed 2014-01-17 21:13:09 -08:00
parent 3b151b21ad
commit ba9d343c51
1 changed files with 31 additions and 1 deletions
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32
src/xenia/kernel/xboxkrnl_rtl.cc
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@ -351,7 +351,6 @@ SHIM_CALL RtlUnicodeStringToAnsiString_shim(
SHIM_CALL RtlMultiByteToUnicodeN_shim( SHIM_CALL RtlMultiByteToUnicodeN_shim(
PPCContext* ppc_state, KernelState* state) { PPCContext* ppc_state, KernelState* state) {
uint32_t destination_ptr = SHIM_GET_ARG_32(0); uint32_t destination_ptr = SHIM_GET_ARG_32(0);
uint32_t destination_len = SHIM_GET_ARG_32(1); uint32_t destination_len = SHIM_GET_ARG_32(1);
uint32_t written_ptr = SHIM_GET_ARG_32(2); uint32_t written_ptr = SHIM_GET_ARG_32(2);
@ -379,6 +378,36 @@ SHIM_CALL RtlMultiByteToUnicodeN_shim(
} }
SHIM_CALL RtlUnicodeToMultiByteN_shim(
PPCContext* ppc_state, KernelState* state) {
uint32_t destination_ptr = SHIM_GET_ARG_32(0);
uint32_t destination_len = SHIM_GET_ARG_32(1);
uint32_t written_ptr = SHIM_GET_ARG_32(2);
uint32_t source_ptr = SHIM_GET_ARG_32(3);
uint32_t source_len = SHIM_GET_ARG_32(4);
uint32_t copy_len = source_len >> 1;
copy_len = copy_len < destination_len ? copy_len : destination_len;
// TODO: maybe use MultiByteToUnicode on Win32? would require swapping
auto source = (uint16_t*)SHIM_MEM_ADDR(source_ptr);
auto destination = (uint8_t*)SHIM_MEM_ADDR(destination_ptr);
for (uint32_t i = 0; i < copy_len; i++)
{
uint16_t c = XESWAP16(*source++);
*destination++ = c < 256 ? (uint8_t)c : '?';
}
if (written_ptr != 0)
{
SHIM_SET_MEM_32(written_ptr, copy_len);
}
SHIM_SET_RETURN(0);
}
uint32_t xeRtlNtStatusToDosError(X_STATUS status) { uint32_t xeRtlNtStatusToDosError(X_STATUS status) {
if (!status || (status & 0x20000000)) { if (!status || (status & 0x20000000)) {
// Success. // Success.
@ -765,6 +794,7 @@ void xe::kernel::xboxkrnl::RegisterRtlExports(
SHIM_SET_MAPPING("xboxkrnl.exe", RtlFreeUnicodeString, state); SHIM_SET_MAPPING("xboxkrnl.exe", RtlFreeUnicodeString, state);
SHIM_SET_MAPPING("xboxkrnl.exe", RtlUnicodeStringToAnsiString, state); SHIM_SET_MAPPING("xboxkrnl.exe", RtlUnicodeStringToAnsiString, state);
SHIM_SET_MAPPING("xboxkrnl.exe", RtlMultiByteToUnicodeN, state); SHIM_SET_MAPPING("xboxkrnl.exe", RtlMultiByteToUnicodeN, state);
SHIM_SET_MAPPING("xboxkrnl.exe", RtlUnicodeToMultiByteN, state);
SHIM_SET_MAPPING("xboxkrnl.exe", RtlTimeToTimeFields, state); SHIM_SET_MAPPING("xboxkrnl.exe", RtlTimeToTimeFields, state);
SHIM_SET_MAPPING("xboxkrnl.exe", RtlTimeFieldsToTime, state); SHIM_SET_MAPPING("xboxkrnl.exe", RtlTimeFieldsToTime, state);