layout: restructure into src/ tests/ android/ scripts/ tools/

- extension/src/{port,platform,codepage} -> src/; native_render -> src/host (+ dxt, shaders/); libgr2 -> src/gr2; extension/third_party -> third_party - extension/tests -> tests/port, libgr2/tests -> tests/gr2 - android-native -> android (build.sh, push-client.sh moved in) - script -> scripts; tools/40250 -> tools/server; oracle -> tools/granny-oracle; perf tools -> tools/perf - all build trees under build/ (native, release, android, port-gate) - xrender:: CMake aliases -> mt::; port-map ledger impl paths rewritten No code changes. ctest 15/15, port_gate macos+android PASS, port_map check 0 errors. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
2026-09-29 19:08:19 +09:00
parent 70710477cf
commit a46093104c
2817 changed files with 13728 additions and 13744 deletions
@@ -0,0 +1,111 @@
+/*
+
+Entry point for the Windows NT DLL.
+
+About the only reason for having this, is so initall() can automatically
+be called, removing that burden (and possible source of frustration if
+forgotten) from the programmer.
+
+*/
+
+#include "Python.h"
+#include "windows.h"
+
+#ifdef Py_ENABLE_SHARED
+char dllVersionBuffer[16] = ""; // a private buffer
+
+// Python Globals
+HMODULE PyWin_DLLhModule = NULL;
+const char *PyWin_DLLVersionString = dllVersionBuffer;
+
+// Windows "Activation Context" work:
+// Our .pyd extension modules are generally built without a manifest (ie,
+// those included with Python and those built with a default distutils.
+// This requires we perform some "activation context" magic when loading our
+// extensions.  In summary:
+// * As our DLL loads we save the context being used.
+// * Before loading our extensions we re-activate our saved context.
+// * After extension load is complete we restore the old context.
+// As an added complication, this magic only works on XP or later - we simply
+// use the existence (or not) of the relevant function pointers from kernel32.
+// See bug 4566 (http://python.org/sf/4566) for more details.
+
+typedef BOOL (WINAPI * PFN_GETCURRENTACTCTX)(HANDLE *);
+typedef BOOL (WINAPI * PFN_ACTIVATEACTCTX)(HANDLE, ULONG_PTR *);
+typedef BOOL (WINAPI * PFN_DEACTIVATEACTCTX)(DWORD, ULONG_PTR);
+typedef void (WINAPI * PFN_ADDREFACTCTX)(HANDLE);
+typedef void (WINAPI * PFN_RELEASEACTCTX)(HANDLE);
+
+// locals and function pointers for this activation context magic.
+static HANDLE PyWin_DLLhActivationContext = NULL; // one day it might be public
+static PFN_GETCURRENTACTCTX pfnGetCurrentActCtx = NULL;
+static PFN_ACTIVATEACTCTX pfnActivateActCtx = NULL;
+static PFN_DEACTIVATEACTCTX pfnDeactivateActCtx = NULL;
+static PFN_ADDREFACTCTX pfnAddRefActCtx = NULL;
+static PFN_RELEASEACTCTX pfnReleaseActCtx = NULL;
+
+void _LoadActCtxPointers()
+{
+    HINSTANCE hKernel32 = GetModuleHandleW(L"kernel32.dll");
+    if (hKernel32)
+        pfnGetCurrentActCtx = (PFN_GETCURRENTACTCTX) GetProcAddress(hKernel32, "GetCurrentActCtx");
+    // If we can't load GetCurrentActCtx (ie, pre XP) , don't bother with the rest.
+    if (pfnGetCurrentActCtx) {
+        pfnActivateActCtx = (PFN_ACTIVATEACTCTX) GetProcAddress(hKernel32, "ActivateActCtx");
+        pfnDeactivateActCtx = (PFN_DEACTIVATEACTCTX) GetProcAddress(hKernel32, "DeactivateActCtx");
+        pfnAddRefActCtx = (PFN_ADDREFACTCTX) GetProcAddress(hKernel32, "AddRefActCtx");
+        pfnReleaseActCtx = (PFN_RELEASEACTCTX) GetProcAddress(hKernel32, "ReleaseActCtx");
+    }
+}
+
+ULONG_PTR _Py_ActivateActCtx()
+{
+    ULONG_PTR ret = 0;
+    if (PyWin_DLLhActivationContext && pfnActivateActCtx)
+        if (!(*pfnActivateActCtx)(PyWin_DLLhActivationContext, &ret)) {
+            OutputDebugString("Python failed to activate the activation context before loading a DLL\n");
+            ret = 0; // no promise the failing function didn't change it!
+        }
+    return ret;
+}
+
+void _Py_DeactivateActCtx(ULONG_PTR cookie)
+{
+    if (cookie && pfnDeactivateActCtx)
+        if (!(*pfnDeactivateActCtx)(0, cookie))
+            OutputDebugString("Python failed to de-activate the activation context\n");
+}
+
+BOOL    WINAPI  DllMain (HANDLE hInst,
+                                                ULONG ul_reason_for_call,
+                                                LPVOID lpReserved)
+{
+    switch (ul_reason_for_call)
+    {
+        case DLL_PROCESS_ATTACH:
+            PyWin_DLLhModule = hInst;
+            // 1000 is a magic number I picked out of the air.  Could do with a #define, I spose...
+            LoadString(hInst, 1000, dllVersionBuffer, sizeof(dllVersionBuffer));
+
+            // and capture our activation context for use when loading extensions.
+            _LoadActCtxPointers();
+            if (pfnGetCurrentActCtx && pfnAddRefActCtx)
+                if ((*pfnGetCurrentActCtx)(&PyWin_DLLhActivationContext)) {
+                    (*pfnAddRefActCtx)(PyWin_DLLhActivationContext);
+                }
+                else {
+                    OutputDebugString("Python failed to load the default "
+                                      "activation context\n");
+                    return FALSE;
+                }
+            break;
+
+        case DLL_PROCESS_DETACH:
+            if (pfnReleaseActCtx)
+                (*pfnReleaseActCtx)(PyWin_DLLhActivationContext);
+            break;
+    }
+    return TRUE;
+}
+
+#endif /* Py_ENABLE_SHARED */