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Cxbx-Reloaded
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Create two independent file mappings for a chihiro system

This commit is contained in:
ergo720 2020-04-09 23:05:14 +02:00 committed by RadWolfie
parent 0623d4f485
commit 653252d1f3
1 changed files with 28 additions and 11 deletions
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39
src/common/ReserveAddressRanges.cpp
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@ -54,32 +54,49 @@ bool ReserveMemoryRange(int index, blocks_reserved_t blocks_reserved)
const DWORD Protect = XboxAddressRanges[index].InitialMemoryProtection;
bool NeedsReservationTracking = false;
unsigned int arr_index = BLOCK_REGION_DEVKIT_INDEX_BEGIN;
static HANDLE hFileMapping1;
static HANDLE hFileMapping2;
#ifdef DEBUG
std::printf("DEBUG: ReserveMemoryRange call begin\n");
std::printf(" : Comment = %s\n", XboxAddressRanges[index].Comment);
#endif
switch (Start) {
case PHYSICAL_MAP1_BASE:
hFileMapping1 = CreateFileMapping(
INVALID_HANDLE_VALUE,
nullptr,
PAGE_EXECUTE_READWRITE,
0,
Size,
nullptr);
if (hFileMapping1 == nullptr) {
HadAnyFailure = true;
break;
}
[[fallthrough]];
case PHYSICAL_MAP2_BASE:
case TILED_MEMORY_BASE: {
static bool NeedsInitialization = true;
static HANDLE hFileMapping;
if (NeedsInitialization) {
hFileMapping = CreateFileMapping(
static bool NeedsInitializationMap = true;
if (NeedsInitializationMap) {
hFileMapping2 = CreateFileMapping(
INVALID_HANDLE_VALUE,
nullptr,
PAGE_EXECUTE_READWRITE,
0,
Size,
nullptr);
if (hFileMapping == nullptr) {
if (hFileMapping2 == nullptr) {
HadAnyFailure = true;
break;
}
NeedsInitialization = false;
NeedsInitializationMap = false;
}
LPVOID Result = MapViewOfFileEx(
hFileMapping,
(Start == PHYSICAL_MAP1_BASE || Start == TILED_MEMORY_BASE) ? hFileMapping1 : hFileMapping2,
(Start == PHYSICAL_MAP1_BASE || Start == PHYSICAL_MAP2_BASE) ?
(FILE_MAP_READ | FILE_MAP_WRITE | FILE_MAP_EXECUTE) : (FILE_MAP_READ | FILE_MAP_WRITE),
0,
@ -99,14 +116,14 @@ bool ReserveMemoryRange(int index, blocks_reserved_t blocks_reserved)
// If additional addresses need to be assign in region's block.
// Then check for nonzero value.
arr_index = BLOCK_REGION_SYSTEM_INDEX_BEGIN;
[[fallthrough]];
case DEVKIT_MEMORY_BASE: {
[[fallthrough]];
case DEVKIT_MEMORY_BASE:
// arr_index's default is BLOCK_REGION_DEVKIT_INDEX_BEGIN which is zero.
// Any block region above zero should be place above this case to override zero value.
//arr_index = BLOCK_REGION_DEVKIT_INDEX_BEGIN;
NeedsReservationTracking = true;
}
[[fallthrough]];
[[fallthrough]];
default: {
while (Size > 0) {