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Added _snwprintf export implementation.

This commit is contained in:
gibbed 2017-05-14 18:03:53 -05:00
parent dab3a2e426
commit 4260e3819b
1 changed files with 38 additions and 0 deletions
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38
src/xenia/kernel/xboxkrnl/xboxkrnl_strings.cc
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@ -905,6 +905,43 @@ SHIM_CALL sprintf_shim(PPCContext* ppc_context, KernelState* kernel_state) {
SHIM_SET_RETURN_32(count);
}
// https://msdn.microsoft.com/en-us/library/2ts7cx93.aspx
SHIM_CALL _snwprintf_shim(PPCContext* ppc_context, KernelState* kernel_state) {
uint32_t buffer_ptr = SHIM_GET_ARG_32(0);
int32_t buffer_count = SHIM_GET_ARG_32(1);
uint32_t format_ptr = SHIM_GET_ARG_32(2);
XELOGD("_snwprintf(%08X, %i, %08X, ...)", buffer_ptr, buffer_count,
format_ptr);
if (buffer_ptr == 0 || buffer_count <= 0 || format_ptr == 0) {
SHIM_SET_RETURN_32(-1);
return;
}
auto buffer = (uint16_t*)SHIM_MEM_ADDR(buffer_ptr);
auto format = (const uint16_t*)SHIM_MEM_ADDR(format_ptr);
StackArgList args(ppc_context, 3);
WideStringFormatData data(format);
int32_t count = format_core(ppc_context, data, args, false);
if (count < 0) {
if (buffer_count > 0) {
buffer[0] = '\0'; // write a null, just to be safe
}
} else if (count <= buffer_count) {
xe::copy_and_swap(buffer, (uint16_t*)data.wstr().c_str(), count);
if (count < buffer_count) {
buffer[count] = '\0';
}
} else {
xe::copy_and_swap(buffer, (uint16_t*)data.wstr().c_str(), buffer_count);
count = -1; // for return value
}
SHIM_SET_RETURN_32(count);
}
// https://msdn.microsoft.com/en-us/library/ybk95axf.aspx
SHIM_CALL swprintf_shim(PPCContext* ppc_context, KernelState* kernel_state) {
uint32_t buffer_ptr = SHIM_GET_ARG_32(0);
@ -1058,6 +1095,7 @@ void RegisterStringExports(xe::cpu::ExportResolver* export_resolver,
SHIM_SET_MAPPING("xboxkrnl.exe", DbgPrint, state);
SHIM_SET_MAPPING("xboxkrnl.exe", _snprintf, state);
SHIM_SET_MAPPING("xboxkrnl.exe", sprintf, state);
SHIM_SET_MAPPING("xboxkrnl.exe", _snwprintf, state);
SHIM_SET_MAPPING("xboxkrnl.exe", swprintf, state);
SHIM_SET_MAPPING("xboxkrnl.exe", _vsnprintf, state);
SHIM_SET_MAPPING("xboxkrnl.exe", vsprintf, state);