150 lines
4.8 KiB
C++
150 lines
4.8 KiB
C++
/**
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******************************************************************************
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* Xenia : Xbox 360 Emulator Research Project *
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******************************************************************************
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* Copyright 2013 Ben Vanik. All rights reserved. *
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* Released under the BSD license - see LICENSE in the root for more details. *
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******************************************************************************
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*/
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#include <xenia/common.h>
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#include <xenia/core.h>
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#include <xenia/xbox.h>
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#include <xenia/kernel/kernel_state.h>
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#include <xenia/kernel/xam_private.h>
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#include <xenia/kernel/objects/xenumerator.h>
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#include <xenia/kernel/util/shim_utils.h>
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#include <xenia/kernel/util/xex2.h>
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namespace xe {
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namespace kernel {
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SHIM_CALL XamGetSystemVersion_shim(PPCContext* ppc_state, KernelState* state) {
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XELOGD("XamGetSystemVersion()");
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// eh, just picking one. If we go too low we may break new games, but
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// this value seems to be used for conditionally loading symbols and if
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// we pretend to be old we have less to worry with implementing.
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// 0x200A3200
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// 0x20096B00
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SHIM_SET_RETURN_64(0);
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}
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SHIM_CALL XGetAVPack_shim(PPCContext* ppc_state, KernelState* state) {
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// DWORD
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// Not sure what the values are for this, but 6 is VGA.
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// Other likely values are 3/4/8 for HDMI or something.
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// Games seem to use this as a PAL check - if the result is not 3/4/6/8
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// they explode with errors if not in PAL mode.
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SHIM_SET_RETURN_64(6);
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}
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SHIM_CALL XGetGameRegion_shim(PPCContext* ppc_state, KernelState* state) {
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XELOGD("XGetGameRegion()");
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SHIM_SET_RETURN_64(XEX_REGION_ALL);
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}
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SHIM_CALL XGetLanguage_shim(PPCContext* ppc_state, KernelState* state) {
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XELOGD("XGetLanguage()");
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uint32_t desired_language = X_LANGUAGE_ENGLISH;
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// Switch the language based on game region.
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// TODO(benvanik): pull from xex header.
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uint32_t game_region = XEX_REGION_NTSCU;
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if (game_region & XEX_REGION_NTSCU) {
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desired_language = X_LANGUAGE_ENGLISH;
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} else if (game_region & XEX_REGION_NTSCJ) {
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desired_language = X_LANGUAGE_JAPANESE;
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}
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// Add more overrides?
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SHIM_SET_RETURN_64(desired_language);
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}
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SHIM_CALL XamVoiceIsActiveProcess_shim(PPCContext* ppc_state,
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KernelState* state) {
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XELOGD("XamVoiceIsActiveProcess()");
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// Returning 0 here will short-circuit a bunch of voice stuff.
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SHIM_SET_RETURN_32(0);
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}
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SHIM_CALL XamLoaderGetLaunchDataSize_shim(PPCContext* ppc_state,
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KernelState* state) {
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uint32_t size_ptr = SHIM_GET_ARG_32(0);
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XELOGD("XamLoaderGetLaunchDataSize(%.8X)", size_ptr);
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SHIM_SET_MEM_32(size_ptr, 0);
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SHIM_SET_RETURN_64(0);
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}
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SHIM_CALL XamLoaderGetLaunchData_shim(PPCContext* ppc_state,
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KernelState* state) {
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uint32_t buffer_ptr = SHIM_GET_ARG_32(0);
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uint32_t buffer_size = SHIM_GET_ARG_32(1);
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XELOGD("XamLoaderGetLaunchData(%.8X, %d)", buffer_ptr, buffer_size);
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SHIM_SET_RETURN_64(0);
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}
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SHIM_CALL XamLoaderTerminateTitle_shim(PPCContext* ppc_state,
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KernelState* state) {
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XELOGD("XamLoaderTerminateTitle()");
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assert_always();
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}
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SHIM_CALL XamEnumerate_shim(PPCContext* ppc_state, KernelState* state) {
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uint32_t handle = SHIM_GET_ARG_32(0);
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uint32_t zero = SHIM_GET_ARG_32(1);
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uint32_t buffer_ptr = SHIM_GET_ARG_32(2);
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uint32_t buffer_length = SHIM_GET_ARG_32(3);
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uint32_t item_count_ptr = SHIM_GET_ARG_32(4);
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uint32_t overlapped_ptr = SHIM_GET_ARG_32(5);
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XELOGD("XamEnumerate(%.8X, %d, %d, %.8X, %d, %.8X, %.8X)", handle, zero,
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buffer_ptr, buffer_length, item_count_ptr, overlapped_ptr);
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XEnumerator* e = nullptr;
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if (XFAILED(state->object_table()->GetObject(handle, (XObject**)&e))) {
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SHIM_SET_RETURN_64(X_ERROR_INVALID_HANDLE);
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return;
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}
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// 0 items.
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if (item_count_ptr) {
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assert_zero(overlapped_ptr);
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SHIM_SET_MEM_32(item_count_ptr, 0);
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} else if (overlapped_ptr) {
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assert_zero(item_count_ptr);
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state->CompleteOverlappedImmediate(overlapped_ptr, 0, 0);
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} else {
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assert_always();
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}
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e->Release();
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SHIM_SET_RETURN_64(0);
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}
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} // namespace kernel
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} // namespace xe
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void xe::kernel::xam::RegisterInfoExports(ExportResolver* export_resolver,
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KernelState* state) {
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SHIM_SET_MAPPING("xam.xex", XamGetSystemVersion, state);
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SHIM_SET_MAPPING("xam.xex", XGetAVPack, state);
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SHIM_SET_MAPPING("xam.xex", XGetGameRegion, state);
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SHIM_SET_MAPPING("xam.xex", XGetLanguage, state);
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SHIM_SET_MAPPING("xam.xex", XamVoiceIsActiveProcess, state);
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SHIM_SET_MAPPING("xam.xex", XamLoaderGetLaunchDataSize, state);
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SHIM_SET_MAPPING("xam.xex", XamLoaderGetLaunchData, state);
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SHIM_SET_MAPPING("xam.xex", XamLoaderTerminateTitle, state);
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SHIM_SET_MAPPING("xam.xex", XamEnumerate, state);
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}
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