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decompile get_system_info()

This commit is contained in:
Matthias Lanzinger 2014-04-27 13:04:45 +02:00
parent d9f0225ee7
commit 0760dab657
3 changed files with 87 additions and 1 deletions
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19
src/addresses.h
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@ -68,6 +68,8 @@
#define RCT2_ADDRESS_SCREEN_DPI 0x009ABDC8
#define RCT2_ADDRESS_SCREEN_WIDTH 0x009ABDD8
#define RCT2_ADDRESS_SCREEN_HEIGHT 0x009ABDDA
#define RCT2_ADDRESS_SCREEN_CAP_BPP 0x01423C10
#define RCT2_ADDRESS_SCREEN_CAP_RASTER_STRETCH 0x01423C14
#define RCT2_ADDRESS_DIRTY_BLOCK_WIDTH 0x009ABDE4
#define RCT2_ADDRESS_DIRTY_BLOCK_HEIGHT 0x009ABDE6
@ -188,6 +190,23 @@
#define RCT2_ADDRESS_OS_TIME_YEAR 0x01424320
#define RCT2_ADDRESS_OS_TIME_DAYOFWEEK 0x01423B20
#define RCT2_ADDRESS_OS_PLATFORM_ID 0x01423B40
#define RCT2_ADDRESS_OS_MAJOR_VERSION 0x01423B44
#define RCT2_ADDRESS_OS_MINOR_VERSION 0x01423B48
#define RCT2_ADDRESS_OS_BUILD_NUMBER 0x01423B4C
#define RCT2_ADDRESS_OS_USER_NAME 0x01423B68
#define RCT2_ADDRESS_OS_COMPUTER_NAME 0x01423BB8
#define RCT2_ADDRESS_SYS_OEM_ID 0x01423B50
#define RCT2_ADDRESS_SYS_CPU_LEVEL 0x01423B52
#define RCT2_ADDRESS_SYS_CPU_REVISION 0x01423B54
#define RCT2_ADDRESS_SYS_CPU_NUMBER 0x01423B58
#define RCT2_ADDRESS_MEM_TOTAL_PHYSICAL 0x01423B5C
#define RCT2_ADDRESS_MEM_TOTAL_PAGEFILE 0x01423B60
#define RCT2_ADDRESS_MEM_TOTAL_VIRTUAL 0x01423B64
static void RCT2_CALLPROC_EBPSAFE(int address)
{
__asm push ebp

68
src/rct2.c
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@ -66,7 +66,7 @@ __declspec(dllexport) int StartOpenRCT(HINSTANCE hInstance, HINSTANCE hPrevInsta
{
RCT2_GLOBAL(0x01423A08, HINSTANCE) = hInstance;
RCT2_GLOBAL(RCT2_ADDRESS_CMDLINE, LPSTR) = lpCmdLine;
RCT2_CALLPROC(0x004076B1); // get_system_info()
get_system_info();
RCT2_CALLPROC(0x0040502E); // get_dsound_devices()
rct2_init();
@ -240,6 +240,72 @@ char *get_file_path(int pathId)
return (char*)ebx;
}
/**
* Obtains basic system versions and capabilities.
* rct2: 0x004076B1
*/
void get_system_info()
{
OSVERSIONINFO versionInfo;
SYSTEM_INFO sysInfo;
MEMORYSTATUS memInfo;
versionInfo.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
if (GetVersionEx(&versionInfo)){
RCT2_GLOBAL(RCT2_ADDRESS_OS_PLATFORM_ID, uint32) = versionInfo.dwPlatformId;
RCT2_GLOBAL(RCT2_ADDRESS_OS_MAJOR_VERSION, uint32) = versionInfo.dwMajorVersion;
RCT2_GLOBAL(RCT2_ADDRESS_OS_MINOR_VERSION, uint32) = versionInfo.dwMinorVersion;
RCT2_GLOBAL(RCT2_ADDRESS_OS_BUILD_NUMBER, uint32) = versionInfo.dwBuildNumber;
}
else{
RCT2_GLOBAL(RCT2_ADDRESS_OS_PLATFORM_ID, uint32) = -1;
RCT2_GLOBAL(RCT2_ADDRESS_OS_MAJOR_VERSION, uint32) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_OS_MINOR_VERSION, uint32) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_OS_BUILD_NUMBER, uint32) = 0;
}
GetSystemInfo(&sysInfo);
// RCT2 only has 2 bytes reserved for OEM_ID even though it should be a DWORD
RCT2_GLOBAL(RCT2_ADDRESS_SYS_OEM_ID, uint16) = sysInfo.dwOemId;
RCT2_GLOBAL(RCT2_ADDRESS_SYS_CPU_LEVEL, uint16) = sysInfo.wProcessorLevel;
RCT2_GLOBAL(RCT2_ADDRESS_SYS_CPU_REVISION, uint16) = sysInfo.wProcessorRevision;
RCT2_GLOBAL(RCT2_ADDRESS_SYS_CPU_NUMBER, uint32) = sysInfo.dwNumberOfProcessors;
GlobalMemoryStatus(&memInfo);
RCT2_GLOBAL(RCT2_ADDRESS_MEM_TOTAL_PHYSICAL, uint32) = memInfo.dwTotalPhys;
RCT2_GLOBAL(RCT2_ADDRESS_MEM_TOTAL_PAGEFILE, uint32) = memInfo.dwTotalPageFile;
RCT2_GLOBAL(RCT2_ADDRESS_MEM_TOTAL_VIRTUAL, uint32) = memInfo.dwTotalVirtual;
uint32 size = 80;
GetUserName(RCT2_ADDRESS_OS_USER_NAME, &size);
size = 80;
GetComputerName(RCT2_ADDRESS_OS_COMPUTER_NAME, &size);
// Screen Display Width/Height but RCT_ADDRESS_SCREEN_HEIGHT/WIDTH already taken?
RCT2_GLOBAL(0x01423C08, sint32) = GetSystemMetrics(SM_CXSCREEN);
RCT2_GLOBAL(0x01423C0C, sint32) = GetSystemMetrics(SM_CYSCREEN);
HDC screenHandle = GetDC(NULL);
if (screenHandle){
RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_CAP_BPP, sint32) = GetDeviceCaps(screenHandle, BITSPIXEL);
RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_CAP_RASTER_STRETCH, sint32) = GetDeviceCaps(screenHandle, RASTERCAPS) >> 8;
ReleaseDC(NULL, screenHandle);
}
else{
RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_CAP_BPP, sint32) = 0;
RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_CAP_RASTER_STRETCH, sint32) = 0;
}
RCT2_GLOBAL(0x01423C1C, uint32) = (RCT2_GLOBAL(RCT2_ADDRESS_SCREEN_CAP_BPP, sint32) >= 8);
if (RCT2_GLOBAL(RCT2_ADDRESS_OS_MAJOR_VERSION, uint32) < 4 || RCT2_GLOBAL(0x1423C10, sint32) < 4)
RCT2_GLOBAL(0x1423C18, sint32) = 0;
else
RCT2_GLOBAL(0x1423C18, sint32) = 1;
RCT2_GLOBAL(0x01423C20, uint32) = RCT2_CALLFUNC(0x406993, uint32); // cpu_has_mmx()
}
/**
* Obtains os system time (day, month, year and day of the week).
* rct2: 0x00407671

1
src/rct2.h
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@ -128,6 +128,7 @@ enum {
void rct2_endupdate();
char *get_file_path(int pathId);
void get_system_info();
void get_system_time();
void *rct2_malloc(size_t numBytes);
void *rct2_realloc(void *block, size_t numBytes);