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| 1 | +# SPDX-License-Identifier: MIT |
| 2 | +# Copyright (c) 2024 David Lechner <[email protected]> |
| 3 | +import sys |
| 4 | + |
| 5 | +if sys.platform != "win32": |
| 6 | + raise OSError |
| 7 | + |
| 8 | +import ctypes |
| 9 | +import enum |
| 10 | +import uuid |
| 11 | +from ctypes import wintypes |
| 12 | +from typing import TYPE_CHECKING |
| 13 | + |
| 14 | +if TYPE_CHECKING: |
| 15 | + from ctypes import _FuncPointer # pyright: ignore[reportPrivateUsage] |
| 16 | + |
| 17 | + |
| 18 | +### |
| 19 | +# https://github.com/pywinrt/pywinrt/blob/main/samples/screen_capture/iunknown.py |
| 20 | +### |
| 21 | + |
| 22 | + |
| 23 | +class GUID(ctypes.Structure): |
| 24 | + _fields_ = ( |
| 25 | + ("Data1", ctypes.c_ulong), |
| 26 | + ("Data2", ctypes.c_ushort), |
| 27 | + ("Data3", ctypes.c_ushort), |
| 28 | + ("Data4", ctypes.c_ubyte * 8), |
| 29 | + ) |
| 30 | + |
| 31 | + |
| 32 | +class IUnknown(ctypes.c_void_p): |
| 33 | + QueryInterface = ctypes.WINFUNCTYPE( |
| 34 | + # _CData is incompatible with int |
| 35 | + int, # type: ignore[arg-type] # pyright: ignore[reportArgumentType] |
| 36 | + ctypes.POINTER(GUID), |
| 37 | + ctypes.POINTER(wintypes.LPVOID), |
| 38 | + )(0, "QueryInterface") |
| 39 | + AddRef = ctypes.WINFUNCTYPE(wintypes.ULONG)(1, "AddRef") |
| 40 | + Release = ctypes.WINFUNCTYPE(wintypes.ULONG)(2, "Release") |
| 41 | + |
| 42 | + def query_interface(self, iid: uuid.UUID | str) -> "IUnknown": |
| 43 | + if isinstance(iid, str): |
| 44 | + iid = uuid.UUID(iid) |
| 45 | + |
| 46 | + ppv = wintypes.LPVOID() |
| 47 | + _iid = GUID.from_buffer_copy(iid.bytes_le) |
| 48 | + ret = self.QueryInterface(self, ctypes.byref(_iid), ctypes.byref(ppv)) |
| 49 | + |
| 50 | + if ret: |
| 51 | + raise ctypes.WinError(ret) |
| 52 | + |
| 53 | + return IUnknown(ppv.value) |
| 54 | + |
| 55 | + def __del__(self): |
| 56 | + IUnknown.Release(self) |
| 57 | + |
| 58 | + |
| 59 | +### |
| 60 | +# https://github.com/pywinrt/pywinrt/blob/main/samples/screen_capture/d3d11.py |
| 61 | +### |
| 62 | + |
| 63 | + |
| 64 | +__all__ = [ |
| 65 | + "D3D11_CREATE_DEVICE_FLAG", |
| 66 | + "D3D_DRIVER_TYPE", |
| 67 | + "D3D_FEATURE_LEVEL", |
| 68 | + "D3D11CreateDevice", |
| 69 | +] |
| 70 | + |
| 71 | +IN = 1 |
| 72 | +OUT = 2 |
| 73 | + |
| 74 | +# https://learn.microsoft.com/en-us/windows/win32/api/d3dcommon/ne-d3dcommon-d3d_driver_type |
| 75 | +# |
| 76 | +# typedef enum D3D_DRIVER_TYPE { |
| 77 | +# D3D_DRIVER_TYPE_UNKNOWN = 0, |
| 78 | +# D3D_DRIVER_TYPE_HARDWARE, |
| 79 | +# D3D_DRIVER_TYPE_REFERENCE, |
| 80 | +# D3D_DRIVER_TYPE_NULL, |
| 81 | +# D3D_DRIVER_TYPE_SOFTWARE, |
| 82 | +# D3D_DRIVER_TYPE_WARP |
| 83 | +# } ; |
| 84 | + |
| 85 | + |
| 86 | +class D3D_DRIVER_TYPE(enum.IntEnum): |
| 87 | + UNKNOWN = 0 |
| 88 | + HARDWARE = 1 |
| 89 | + REFERENCE = 2 |
| 90 | + NULL = 3 |
| 91 | + SOFTWARE = 4 |
| 92 | + WARP = 5 |
| 93 | + |
| 94 | + |
| 95 | +# https://learn.microsoft.com/en-us/windows/win32/api/d3d11/ne-d3d11-d3d11_create_device_flag |
| 96 | +# |
| 97 | +# typedef enum D3D11_CREATE_DEVICE_FLAG { |
| 98 | +# D3D11_CREATE_DEVICE_SINGLETHREADED = 0x1, |
| 99 | +# D3D11_CREATE_DEVICE_DEBUG = 0x2, |
| 100 | +# D3D11_CREATE_DEVICE_SWITCH_TO_REF = 0x4, |
| 101 | +# D3D11_CREATE_DEVICE_PREVENT_INTERNAL_THREADING_OPTIMIZATIONS = 0x8, |
| 102 | +# D3D11_CREATE_DEVICE_BGRA_SUPPORT = 0x20, |
| 103 | +# D3D11_CREATE_DEVICE_DEBUGGABLE = 0x40, |
| 104 | +# D3D11_CREATE_DEVICE_PREVENT_ALTERING_LAYER_SETTINGS_FROM_REGISTRY = 0x80, |
| 105 | +# D3D11_CREATE_DEVICE_DISABLE_GPU_TIMEOUT = 0x100, |
| 106 | +# D3D11_CREATE_DEVICE_VIDEO_SUPPORT = 0x800 |
| 107 | +# } ; |
| 108 | + |
| 109 | + |
| 110 | +class D3D11_CREATE_DEVICE_FLAG(enum.IntFlag): |
| 111 | + SINGLETHREADED = 0x1 |
| 112 | + DEBUG = 0x2 |
| 113 | + SWITCH_TO_REF = 0x4 |
| 114 | + PREVENT_INTERNAL_THREADING_OPTIMIZATIONS = 0x8 |
| 115 | + BGRA_SUPPORT = 0x20 |
| 116 | + DEBUGGABLE = 0x40 |
| 117 | + PREVENT_ALTERING_LAYER_SETTINGS_FROM_REGISTRY = 0x80 |
| 118 | + DISABLE_GPU_TIMEOUT = 0x100 |
| 119 | + VIDEO_SUPPORT = 0x800 |
| 120 | + |
| 121 | + |
| 122 | +# https://learn.microsoft.com/en-us/windows/win32/api/d3dcommon/ne-d3dcommon-d3d_feature_level |
| 123 | +# |
| 124 | +# typedef enum D3D_FEATURE_LEVEL { |
| 125 | +# D3D_FEATURE_LEVEL_1_0_GENERIC, |
| 126 | +# D3D_FEATURE_LEVEL_1_0_CORE, |
| 127 | +# D3D_FEATURE_LEVEL_9_1, |
| 128 | +# D3D_FEATURE_LEVEL_9_2, |
| 129 | +# D3D_FEATURE_LEVEL_9_3, |
| 130 | +# D3D_FEATURE_LEVEL_10_0, |
| 131 | +# D3D_FEATURE_LEVEL_10_1, |
| 132 | +# D3D_FEATURE_LEVEL_11_0, |
| 133 | +# D3D_FEATURE_LEVEL_11_1, |
| 134 | +# D3D_FEATURE_LEVEL_12_0, |
| 135 | +# D3D_FEATURE_LEVEL_12_1, |
| 136 | +# D3D_FEATURE_LEVEL_12_2 |
| 137 | +# } ; |
| 138 | + |
| 139 | + |
| 140 | +class D3D_FEATURE_LEVEL(enum.IntEnum): |
| 141 | + LEVEL_1_0_GENERIC = 0x1000 |
| 142 | + LEVEL_1_0_CORE = 0x1001 |
| 143 | + LEVEL_9_1 = 0x9100 |
| 144 | + LEVEL_9_2 = 0x9200 |
| 145 | + LEVEL_9_3 = 0x9300 |
| 146 | + LEVEL_10_0 = 0xA000 |
| 147 | + LEVEL_10_1 = 0xA100 |
| 148 | + LEVEL_11_0 = 0xB000 |
| 149 | + LEVEL_11_1 = 0xB100 |
| 150 | + LEVEL_12_0 = 0xC000 |
| 151 | + LEVEL_12_1 = 0xC100 |
| 152 | + LEVEL_12_2 = 0xC200 |
| 153 | + |
| 154 | + |
| 155 | +# not sure where this is officially defined or if the value would ever change |
| 156 | + |
| 157 | +D3D11_SDK_VERSION = 7 |
| 158 | + |
| 159 | +# https://learn.microsoft.com/en-us/windows/win32/api/d3d11/nf-d3d11-d3d11createdevice |
| 160 | +# |
| 161 | +# HRESULT D3D11CreateDevice( |
| 162 | +# [in, optional] IDXGIAdapter *pAdapter, |
| 163 | +# D3D_DRIVER_TYPE DriverType, |
| 164 | +# HMODULE Software, |
| 165 | +# UINT Flags, |
| 166 | +# [in, optional] const D3D_FEATURE_LEVEL *pFeatureLevels, |
| 167 | +# UINT FeatureLevels, |
| 168 | +# UINT SDKVersion, |
| 169 | +# [out, optional] ID3D11Device **ppDevice, |
| 170 | +# [out, optional] D3D_FEATURE_LEVEL *pFeatureLevel, |
| 171 | +# [out, optional] ID3D11DeviceContext **ppImmediateContext |
| 172 | +# ); |
| 173 | + |
| 174 | + |
| 175 | +def errcheck( |
| 176 | + result: int, |
| 177 | + _func: "_FuncPointer", # Actually WinFunctionType but that's an internal class |
| 178 | + args: tuple[ |
| 179 | + IUnknown | None, # IDXGIAdapter |
| 180 | + D3D_DRIVER_TYPE, |
| 181 | + wintypes.HMODULE | None, |
| 182 | + D3D11_CREATE_DEVICE_FLAG, |
| 183 | + D3D_FEATURE_LEVEL | None, |
| 184 | + int, |
| 185 | + int, |
| 186 | + IUnknown, # ID3D11Device |
| 187 | + wintypes.UINT, |
| 188 | + IUnknown, # ID3D11DeviceContext |
| 189 | + ], |
| 190 | +): |
| 191 | + if result: |
| 192 | + raise ctypes.WinError(result) |
| 193 | + |
| 194 | + return (args[7], D3D_FEATURE_LEVEL(args[8].value), args[9]) |
| 195 | + |
| 196 | + |
| 197 | +D3D11CreateDevice = ctypes.WINFUNCTYPE( |
| 198 | + # _CData is incompatible with int |
| 199 | + int, # type: ignore[arg-type] # pyright: ignore[reportArgumentType] |
| 200 | + wintypes.LPVOID, |
| 201 | + wintypes.UINT, |
| 202 | + wintypes.LPVOID, |
| 203 | + wintypes.UINT, |
| 204 | + ctypes.POINTER(wintypes.UINT), |
| 205 | + wintypes.UINT, |
| 206 | + wintypes.UINT, |
| 207 | + ctypes.POINTER(IUnknown), |
| 208 | + ctypes.POINTER(wintypes.UINT), |
| 209 | + ctypes.POINTER(IUnknown), |
| 210 | +)( |
| 211 | + ("D3D11CreateDevice", ctypes.windll.d3d11), |
| 212 | + ( |
| 213 | + (IN, "pAdapter", None), |
| 214 | + (IN, "DriverType", D3D_DRIVER_TYPE.UNKNOWN), |
| 215 | + (IN, "Software", None), |
| 216 | + (IN, "Flags", 0), |
| 217 | + (IN, "pFeatureLevels", None), |
| 218 | + (IN, "FeatureLevels", 0), |
| 219 | + (IN, "SDKVersion", D3D11_SDK_VERSION), |
| 220 | + (OUT, "ppDevice"), |
| 221 | + (OUT, "pFeatureLevel"), |
| 222 | + (OUT, "ppImmediateContext"), |
| 223 | + ), |
| 224 | +) |
| 225 | +# _CData is incompatible with int |
| 226 | +D3D11CreateDevice.errcheck = errcheck # type: ignore[assignment] # pyright: ignore[reportAttributeAccessIssue] |
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