diff options
Diffstat (limited to 'tools/capture-original-camera.ps1')
| -rw-r--r-- | tools/capture-original-camera.ps1 | 213 |
1 files changed, 0 insertions, 213 deletions
diff --git a/tools/capture-original-camera.ps1 b/tools/capture-original-camera.ps1 deleted file mode 100644 index 9e95d91..0000000 --- a/tools/capture-original-camera.ps1 +++ /dev/null @@ -1,213 +0,0 @@ -[CmdletBinding()] -param( - [Parameter(Mandatory = $true)] - [int]$ProcessId, - [ValidateRange(1, 16384)] - [int]$ViewportWidth = 1024, - [ValidateRange(1, 16384)] - [int]$ViewportHeight = 768, - [ValidateRange(0.001, 1000.0)] - [double]$NearPlane = 0.5, - [ValidateRange(0.01, 100000.0)] - [double]$FarPlane = 700.0, - [ValidateRange(0.01, 3.13)] - [double]$FieldOfViewRadians = 1.3, - [ValidateRange(1, 600)] - [int]$CaptureAttempts = 60, - [ValidateRange(0, 1000000.0)] - [double]$MinimumWorldTranslation = 100.0, - [ValidateRange(0, 1000)] - [int]$RetryIntervalMilliseconds = 100 -) - -Set-StrictMode -Version Latest -$ErrorActionPreference = 'Stop' - -# This observer deliberately opens only PROCESS_QUERY_INFORMATION | PROCESS_VM_READ. -# It neither sends input nor writes, suspends, injects into, or calls the original game. -Add-Type -TypeDefinition @' -using System; -using System.Runtime.InteropServices; - -public static class FparkanOriginalCamera { - public const uint TH32CS_SNAPMODULE = 0x00000008; - public const uint TH32CS_SNAPMODULE32 = 0x00000010; - public const uint PROCESS_QUERY_INFORMATION = 0x00000400; - public const uint PROCESS_VM_READ = 0x00000010; - - [StructLayout(LayoutKind.Sequential, CharSet = CharSet.Unicode)] - public struct MODULEENTRY32 { - public uint dwSize; - public uint th32ModuleID; - public uint th32ProcessID; - public uint GlblcntUsage; - public uint ProccntUsage; - public IntPtr modBaseAddr; - public uint modBaseSize; - public IntPtr hModule; - [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 256)] public string szModule; - [MarshalAs(UnmanagedType.ByValTStr, SizeConst = 260)] public string szExePath; - } - - [DllImport("kernel32.dll", SetLastError = true)] - public static extern IntPtr CreateToolhelp32Snapshot(uint flags, uint processId); - [DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)] - public static extern bool Module32First(IntPtr snapshot, ref MODULEENTRY32 entry); - [DllImport("kernel32.dll", CharSet = CharSet.Unicode, SetLastError = true)] - public static extern bool Module32Next(IntPtr snapshot, ref MODULEENTRY32 entry); - [DllImport("kernel32.dll", SetLastError = true)] - public static extern IntPtr OpenProcess(uint access, bool inheritHandle, uint processId); - [DllImport("kernel32.dll", SetLastError = true)] - public static extern bool ReadProcessMemory( - IntPtr process, - IntPtr address, - [Out] byte[] buffer, - IntPtr size, - out IntPtr bytesRead); - [DllImport("kernel32.dll", SetLastError = true)] - public static extern bool CloseHandle(IntPtr handle); -} -'@ - -function Get-LastWin32ErrorText { - $code = [Runtime.InteropServices.Marshal]::GetLastWin32Error() - "$code ($([ComponentModel.Win32Exception]::new($code).Message))" -} - -function Read-OriginalBytes { - param( - [IntPtr]$Process, - [Int64]$Address, - [int]$Length - ) - $buffer = [byte[]]::new($Length) - $read = [IntPtr]::Zero - if (-not [FparkanOriginalCamera]::ReadProcessMemory( - $Process, - [IntPtr]$Address, - $buffer, - [IntPtr]$Length, - [ref]$read)) { - throw "ReadProcessMemory at 0x$('{0:X8}' -f $Address) failed: $(Get-LastWin32ErrorText)" - } - if ($read.ToInt64() -ne $Length) { - throw "ReadProcessMemory at 0x$('{0:X8}' -f $Address) returned $($read.ToInt64()) of $Length bytes" - } - $buffer -} - -$snapshot = [FparkanOriginalCamera]::CreateToolhelp32Snapshot( - [FparkanOriginalCamera]::TH32CS_SNAPMODULE -bor [FparkanOriginalCamera]::TH32CS_SNAPMODULE32, - [uint32]$ProcessId -) -if ($snapshot -eq [IntPtr]::Zero -or $snapshot.ToInt64() -eq -1) { - throw "CreateToolhelp32Snapshot failed: $(Get-LastWin32ErrorText)" -} - -$terrainBase = $null -try { - $module = [FparkanOriginalCamera+MODULEENTRY32]::new() - $module.dwSize = [Runtime.InteropServices.Marshal]::SizeOf([type][FparkanOriginalCamera+MODULEENTRY32]) - if (-not [FparkanOriginalCamera]::Module32First($snapshot, [ref]$module)) { - throw "Module32First failed: $(Get-LastWin32ErrorText)" - } - do { - if ($module.szModule -ieq 'Terrain.dll') { - $terrainBase = $module.modBaseAddr.ToInt64() - break - } - $module = [FparkanOriginalCamera+MODULEENTRY32]::new() - $module.dwSize = [Runtime.InteropServices.Marshal]::SizeOf([type][FparkanOriginalCamera+MODULEENTRY32]) - } while ([FparkanOriginalCamera]::Module32Next($snapshot, [ref]$module)) -} finally { - [void][FparkanOriginalCamera]::CloseHandle($snapshot) -} - -if ($null -eq $terrainBase) { - throw "Terrain.dll is not loaded by process $ProcessId" -} - -$process = [FparkanOriginalCamera]::OpenProcess( - [FparkanOriginalCamera]::PROCESS_QUERY_INFORMATION -bor [FparkanOriginalCamera]::PROCESS_VM_READ, - $false, - [uint32]$ProcessId -) -if ($process -eq [IntPtr]::Zero) { - throw "OpenProcess(PROCESS_QUERY_INFORMATION | PROCESS_VM_READ) failed: $(Get-LastWin32ErrorText)" -} - -try { - # Terrain.dll image RVA 0x7355c -> active 0x1a4-byte outer camera object. - # Its selector-0 affine block begins at outer + 0x20. Words 3/7/11 are - # the proven world-space translation components. AutoDemo also briefly - # selects normalized/reflection-like camera objects; a finite matrix alone - # is not sufficient evidence that it can project the mission world. - $expectedOuterVtable = [uint32]($terrainBase + 0x665b4) - $matrixBytes = $null - $translation = $null - $cameraOuter = $null - $lastObservation = 'camera pointer unavailable' - for ($attempt = 1; $attempt -le $CaptureAttempts; $attempt++) { - $candidateOuter = [BitConverter]::ToUInt32( - (Read-OriginalBytes $process ($terrainBase + 0x7355c) 4), - 0 - ) - if ($candidateOuter -lt 0x10000) { - $lastObservation = "camera pointer 0x$('{0:X8}' -f $candidateOuter)" - continue - } - $outerVtable = [BitConverter]::ToUInt32( - (Read-OriginalBytes $process ([int64]$candidateOuter) 4), - 0 - ) - if ($outerVtable -ne $expectedOuterVtable) { - $lastObservation = "outer vtable 0x$('{0:X8}' -f $outerVtable)" - continue - } - $matrixBytes = Read-OriginalBytes $process ([int64]$candidateOuter + 0x20) 64 - $candidateTranslation = @( - [BitConverter]::ToSingle($matrixBytes, 12), - [BitConverter]::ToSingle($matrixBytes, 28), - [BitConverter]::ToSingle($matrixBytes, 44) - ) - $nonFinite = @($candidateTranslation | Where-Object { - [Single]::IsNaN($_) -or [Single]::IsInfinity($_) - }) - $length = [Math]::Sqrt( - [double]$candidateTranslation[0] * $candidateTranslation[0] + - [double]$candidateTranslation[1] * $candidateTranslation[1] + - [double]$candidateTranslation[2] * $candidateTranslation[2] - ) - if ($nonFinite.Count -eq 0 -and $length -ge $MinimumWorldTranslation) { - $cameraOuter = $candidateOuter - $translation = $candidateTranslation - break - } - $lastObservation = "translation length $length at 0x$('{0:X8}' -f $candidateOuter)" - if ($attempt -lt $CaptureAttempts -and $RetryIntervalMilliseconds -gt 0) { - Start-Sleep -Milliseconds $RetryIntervalMilliseconds - } - } - if ($null -eq $translation) { - throw "No world-space selector-0 transform after $CaptureAttempts samples (minimum translation length $MinimumWorldTranslation; last observation: $lastObservation)" - } - $words = for ($index = 0; $index -lt 16; $index++) { - [BitConverter]::ToUInt32($matrixBytes, $index * 4) - } - [ordered]@{ - schema = 'fparkan-legacy-camera-v1' - process_id = $ProcessId - terrain_module_base = ('0x{0:X8}' -f $terrainBase) - terrain_camera_global_rva = '0x7355c' - terrain_camera_outer = ('0x{0:X8}' -f $cameraOuter) - selector0_words = @($words) - selector0_translation = @($translation) - # LegacyD3d7Projection carries a D3D7 RECT: left, top, right, bottom. - viewport = @(0, 0, $ViewportWidth, $ViewportHeight) - near_plane = $NearPlane - far_plane = $FarPlane - field_of_view_radians = $FieldOfViewRadians - } | ConvertTo-Json -Depth 4 -Compress -} finally { - [void][FparkanOriginalCamera]::CloseHandle($process) -} |