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22b586b3d8
glfw/src/win32_init.c
Camilla Löwy 22b586b3d8 Add pluggable heap allocator 
This adds the glfwInitAllocator function for specifying a custom memory
allocator to use instead of the C runtime library.

The allocator is a struct of type GLFWallocator with fields
corresponding to malloc, realloc and free, while the internal API
corresponds to calloc, realloc and free.

Heap allocation calls are filtered before reaching the user-provided
functions, so deallocation of NULL and allocations of zero bytes are not
passed on, reallocating NULL is transformed into an allocation and
reallocating to size zero is transformed into deallocation.

The clearing of a new block to zero is performed by the internal
calloc-like function.

Closes #544.
Fixes #1628.
Closes #1947.
2021-08-25 21:00:10 +02:00

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//========================================================================
// GLFW 3.4 Win32 - www.glfw.org
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Marcus Geelnard
// Copyright (c) 2006-2019 Camilla Löwy <elmindreda@glfw.org>
//
// This software is provided 'as-is', without any express or implied
// warranty. In no event will the authors be held liable for any damages
// arising from the use of this software.
//
// Permission is granted to anyone to use this software for any purpose,
// including commercial applications, and to alter it and redistribute it
// freely, subject to the following restrictions:
//
// 1. The origin of this software must not be misrepresented; you must not
// claim that you wrote the original software. If you use this software
// in a product, an acknowledgment in the product documentation would
// be appreciated but is not required.
//
// 2. Altered source versions must be plainly marked as such, and must not
// be misrepresented as being the original software.
//
// 3. This notice may not be removed or altered from any source
// distribution.
//
//========================================================================
// Please use C89 style variable declarations in this file because VS 2010
//========================================================================
#include "internal.h"
#include <stdlib.h>
static const GUID _glfw_GUID_DEVINTERFACE_HID =
{0x4d1e55b2,0xf16f,0x11cf,{0x88,0xcb,0x00,0x11,0x11,0x00,0x00,0x30}};
#define GUID_DEVINTERFACE_HID _glfw_GUID_DEVINTERFACE_HID
#if defined(_GLFW_USE_HYBRID_HPG) || defined(_GLFW_USE_OPTIMUS_HPG)
#if defined(_GLFW_BUILD_DLL)
#pragma message("These symbols must be exported by the executable and have no effect in a DLL")
#endif
// Executables (but not DLLs) exporting this symbol with this value will be
// automatically directed to the high-performance GPU on Nvidia Optimus systems
// with up-to-date drivers
//
__declspec(dllexport) DWORD NvOptimusEnablement = 1;
// Executables (but not DLLs) exporting this symbol with this value will be
// automatically directed to the high-performance GPU on AMD PowerXpress systems
// with up-to-date drivers
//
__declspec(dllexport) int AmdPowerXpressRequestHighPerformance = 1;
#endif // _GLFW_USE_HYBRID_HPG
#if defined(_GLFW_BUILD_DLL)
// GLFW DLL entry point
//
BOOL WINAPI DllMain(HINSTANCE instance, DWORD reason, LPVOID reserved)
{
return TRUE;
}
#endif // _GLFW_BUILD_DLL
// Load necessary libraries (DLLs)
//
static GLFWbool loadLibraries(void)
{
_glfw.win32.winmm.instance = LoadLibraryA("winmm.dll");
if (!_glfw.win32.winmm.instance)
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to load winmm.dll");
return GLFW_FALSE;
}
_glfw.win32.winmm.GetTime = (PFN_timeGetTime)
GetProcAddress(_glfw.win32.winmm.instance, "timeGetTime");
_glfw.win32.user32.instance = LoadLibraryA("user32.dll");
if (!_glfw.win32.user32.instance)
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to load user32.dll");
return GLFW_FALSE;
}
_glfw.win32.user32.SetProcessDPIAware_ = (PFN_SetProcessDPIAware)
GetProcAddress(_glfw.win32.user32.instance, "SetProcessDPIAware");
_glfw.win32.user32.ChangeWindowMessageFilterEx_ = (PFN_ChangeWindowMessageFilterEx)
GetProcAddress(_glfw.win32.user32.instance, "ChangeWindowMessageFilterEx");
_glfw.win32.user32.EnableNonClientDpiScaling_ = (PFN_EnableNonClientDpiScaling)
GetProcAddress(_glfw.win32.user32.instance, "EnableNonClientDpiScaling");
_glfw.win32.user32.SetProcessDpiAwarenessContext_ = (PFN_SetProcessDpiAwarenessContext)
GetProcAddress(_glfw.win32.user32.instance, "SetProcessDpiAwarenessContext");
_glfw.win32.user32.GetDpiForWindow_ = (PFN_GetDpiForWindow)
GetProcAddress(_glfw.win32.user32.instance, "GetDpiForWindow");
_glfw.win32.user32.AdjustWindowRectExForDpi_ = (PFN_AdjustWindowRectExForDpi)
GetProcAddress(_glfw.win32.user32.instance, "AdjustWindowRectExForDpi");
_glfw.win32.dinput8.instance = LoadLibraryA("dinput8.dll");
if (_glfw.win32.dinput8.instance)
{
_glfw.win32.dinput8.Create = (PFN_DirectInput8Create)
GetProcAddress(_glfw.win32.dinput8.instance, "DirectInput8Create");
}
{
int i;
const char* names[] =
{
"xinput1_4.dll",
"xinput1_3.dll",
"xinput9_1_0.dll",
"xinput1_2.dll",
"xinput1_1.dll",
NULL
};
for (i = 0; names[i]; i++)
{
_glfw.win32.xinput.instance = LoadLibraryA(names[i]);
if (_glfw.win32.xinput.instance)
{
_glfw.win32.xinput.GetCapabilities = (PFN_XInputGetCapabilities)
GetProcAddress(_glfw.win32.xinput.instance, "XInputGetCapabilities");
_glfw.win32.xinput.GetState = (PFN_XInputGetState)
GetProcAddress(_glfw.win32.xinput.instance, "XInputGetState");
break;
}
}
}
_glfw.win32.dwmapi.instance = LoadLibraryA("dwmapi.dll");
if (_glfw.win32.dwmapi.instance)
{
_glfw.win32.dwmapi.IsCompositionEnabled = (PFN_DwmIsCompositionEnabled)
GetProcAddress(_glfw.win32.dwmapi.instance, "DwmIsCompositionEnabled");
_glfw.win32.dwmapi.Flush = (PFN_DwmFlush)
GetProcAddress(_glfw.win32.dwmapi.instance, "DwmFlush");
_glfw.win32.dwmapi.EnableBlurBehindWindow = (PFN_DwmEnableBlurBehindWindow)
GetProcAddress(_glfw.win32.dwmapi.instance, "DwmEnableBlurBehindWindow");
_glfw.win32.dwmapi.GetColorizationColor = (PFN_DwmGetColorizationColor)
GetProcAddress(_glfw.win32.dwmapi.instance, "DwmGetColorizationColor");
}
_glfw.win32.shcore.instance = LoadLibraryA("shcore.dll");
if (_glfw.win32.shcore.instance)
{
_glfw.win32.shcore.SetProcessDpiAwareness_ = (PFN_SetProcessDpiAwareness)
GetProcAddress(_glfw.win32.shcore.instance, "SetProcessDpiAwareness");
_glfw.win32.shcore.GetDpiForMonitor_ = (PFN_GetDpiForMonitor)
GetProcAddress(_glfw.win32.shcore.instance, "GetDpiForMonitor");
}
_glfw.win32.ntdll.instance = LoadLibraryA("ntdll.dll");
if (_glfw.win32.ntdll.instance)
{
_glfw.win32.ntdll.RtlVerifyVersionInfo_ = (PFN_RtlVerifyVersionInfo)
GetProcAddress(_glfw.win32.ntdll.instance, "RtlVerifyVersionInfo");
}
return GLFW_TRUE;
}
// Unload used libraries (DLLs)
//
static void freeLibraries(void)
{
if (_glfw.win32.xinput.instance)
FreeLibrary(_glfw.win32.xinput.instance);
if (_glfw.win32.dinput8.instance)
FreeLibrary(_glfw.win32.dinput8.instance);
if (_glfw.win32.winmm.instance)
FreeLibrary(_glfw.win32.winmm.instance);
if (_glfw.win32.user32.instance)
FreeLibrary(_glfw.win32.user32.instance);
if (_glfw.win32.dwmapi.instance)
FreeLibrary(_glfw.win32.dwmapi.instance);
if (_glfw.win32.shcore.instance)
FreeLibrary(_glfw.win32.shcore.instance);
if (_glfw.win32.ntdll.instance)
FreeLibrary(_glfw.win32.ntdll.instance);
}
// Create key code translation tables
//
static void createKeyTables(void)
{
int scancode;
memset(_glfw.win32.keycodes, -1, sizeof(_glfw.win32.keycodes));
memset(_glfw.win32.scancodes, -1, sizeof(_glfw.win32.scancodes));
_glfw.win32.keycodes[0x00B] = GLFW_KEY_0;
_glfw.win32.keycodes[0x002] = GLFW_KEY_1;
_glfw.win32.keycodes[0x003] = GLFW_KEY_2;
_glfw.win32.keycodes[0x004] = GLFW_KEY_3;
_glfw.win32.keycodes[0x005] = GLFW_KEY_4;
_glfw.win32.keycodes[0x006] = GLFW_KEY_5;
_glfw.win32.keycodes[0x007] = GLFW_KEY_6;
_glfw.win32.keycodes[0x008] = GLFW_KEY_7;
_glfw.win32.keycodes[0x009] = GLFW_KEY_8;
_glfw.win32.keycodes[0x00A] = GLFW_KEY_9;
_glfw.win32.keycodes[0x01E] = GLFW_KEY_A;
_glfw.win32.keycodes[0x030] = GLFW_KEY_B;
_glfw.win32.keycodes[0x02E] = GLFW_KEY_C;
_glfw.win32.keycodes[0x020] = GLFW_KEY_D;
_glfw.win32.keycodes[0x012] = GLFW_KEY_E;
_glfw.win32.keycodes[0x021] = GLFW_KEY_F;
_glfw.win32.keycodes[0x022] = GLFW_KEY_G;
_glfw.win32.keycodes[0x023] = GLFW_KEY_H;
_glfw.win32.keycodes[0x017] = GLFW_KEY_I;
_glfw.win32.keycodes[0x024] = GLFW_KEY_J;
_glfw.win32.keycodes[0x025] = GLFW_KEY_K;
_glfw.win32.keycodes[0x026] = GLFW_KEY_L;
_glfw.win32.keycodes[0x032] = GLFW_KEY_M;
_glfw.win32.keycodes[0x031] = GLFW_KEY_N;
_glfw.win32.keycodes[0x018] = GLFW_KEY_O;
_glfw.win32.keycodes[0x019] = GLFW_KEY_P;
_glfw.win32.keycodes[0x010] = GLFW_KEY_Q;
_glfw.win32.keycodes[0x013] = GLFW_KEY_R;
_glfw.win32.keycodes[0x01F] = GLFW_KEY_S;
_glfw.win32.keycodes[0x014] = GLFW_KEY_T;
_glfw.win32.keycodes[0x016] = GLFW_KEY_U;
_glfw.win32.keycodes[0x02F] = GLFW_KEY_V;
_glfw.win32.keycodes[0x011] = GLFW_KEY_W;
_glfw.win32.keycodes[0x02D] = GLFW_KEY_X;
_glfw.win32.keycodes[0x015] = GLFW_KEY_Y;
_glfw.win32.keycodes[0x02C] = GLFW_KEY_Z;
_glfw.win32.keycodes[0x028] = GLFW_KEY_APOSTROPHE;
_glfw.win32.keycodes[0x02B] = GLFW_KEY_BACKSLASH;
_glfw.win32.keycodes[0x033] = GLFW_KEY_COMMA;
_glfw.win32.keycodes[0x00D] = GLFW_KEY_EQUAL;
_glfw.win32.keycodes[0x029] = GLFW_KEY_GRAVE_ACCENT;
_glfw.win32.keycodes[0x01A] = GLFW_KEY_LEFT_BRACKET;
_glfw.win32.keycodes[0x00C] = GLFW_KEY_MINUS;
_glfw.win32.keycodes[0x034] = GLFW_KEY_PERIOD;
_glfw.win32.keycodes[0x01B] = GLFW_KEY_RIGHT_BRACKET;
_glfw.win32.keycodes[0x027] = GLFW_KEY_SEMICOLON;
_glfw.win32.keycodes[0x035] = GLFW_KEY_SLASH;
_glfw.win32.keycodes[0x056] = GLFW_KEY_WORLD_2;
_glfw.win32.keycodes[0x00E] = GLFW_KEY_BACKSPACE;
_glfw.win32.keycodes[0x153] = GLFW_KEY_DELETE;
_glfw.win32.keycodes[0x14F] = GLFW_KEY_END;
_glfw.win32.keycodes[0x01C] = GLFW_KEY_ENTER;
_glfw.win32.keycodes[0x001] = GLFW_KEY_ESCAPE;
_glfw.win32.keycodes[0x147] = GLFW_KEY_HOME;
_glfw.win32.keycodes[0x152] = GLFW_KEY_INSERT;
_glfw.win32.keycodes[0x15D] = GLFW_KEY_MENU;
_glfw.win32.keycodes[0x151] = GLFW_KEY_PAGE_DOWN;
_glfw.win32.keycodes[0x149] = GLFW_KEY_PAGE_UP;
_glfw.win32.keycodes[0x045] = GLFW_KEY_PAUSE;
_glfw.win32.keycodes[0x146] = GLFW_KEY_PAUSE;
_glfw.win32.keycodes[0x039] = GLFW_KEY_SPACE;
_glfw.win32.keycodes[0x00F] = GLFW_KEY_TAB;
_glfw.win32.keycodes[0x03A] = GLFW_KEY_CAPS_LOCK;
_glfw.win32.keycodes[0x145] = GLFW_KEY_NUM_LOCK;
_glfw.win32.keycodes[0x046] = GLFW_KEY_SCROLL_LOCK;
_glfw.win32.keycodes[0x03B] = GLFW_KEY_F1;
_glfw.win32.keycodes[0x03C] = GLFW_KEY_F2;
_glfw.win32.keycodes[0x03D] = GLFW_KEY_F3;
_glfw.win32.keycodes[0x03E] = GLFW_KEY_F4;
_glfw.win32.keycodes[0x03F] = GLFW_KEY_F5;
_glfw.win32.keycodes[0x040] = GLFW_KEY_F6;
_glfw.win32.keycodes[0x041] = GLFW_KEY_F7;
_glfw.win32.keycodes[0x042] = GLFW_KEY_F8;
_glfw.win32.keycodes[0x043] = GLFW_KEY_F9;
_glfw.win32.keycodes[0x044] = GLFW_KEY_F10;
_glfw.win32.keycodes[0x057] = GLFW_KEY_F11;
_glfw.win32.keycodes[0x058] = GLFW_KEY_F12;
_glfw.win32.keycodes[0x064] = GLFW_KEY_F13;
_glfw.win32.keycodes[0x065] = GLFW_KEY_F14;
_glfw.win32.keycodes[0x066] = GLFW_KEY_F15;
_glfw.win32.keycodes[0x067] = GLFW_KEY_F16;
_glfw.win32.keycodes[0x068] = GLFW_KEY_F17;
_glfw.win32.keycodes[0x069] = GLFW_KEY_F18;
_glfw.win32.keycodes[0x06A] = GLFW_KEY_F19;
_glfw.win32.keycodes[0x06B] = GLFW_KEY_F20;
_glfw.win32.keycodes[0x06C] = GLFW_KEY_F21;
_glfw.win32.keycodes[0x06D] = GLFW_KEY_F22;
_glfw.win32.keycodes[0x06E] = GLFW_KEY_F23;
_glfw.win32.keycodes[0x076] = GLFW_KEY_F24;
_glfw.win32.keycodes[0x038] = GLFW_KEY_LEFT_ALT;
_glfw.win32.keycodes[0x01D] = GLFW_KEY_LEFT_CONTROL;
_glfw.win32.keycodes[0x02A] = GLFW_KEY_LEFT_SHIFT;
_glfw.win32.keycodes[0x15B] = GLFW_KEY_LEFT_SUPER;
_glfw.win32.keycodes[0x137] = GLFW_KEY_PRINT_SCREEN;
_glfw.win32.keycodes[0x138] = GLFW_KEY_RIGHT_ALT;
_glfw.win32.keycodes[0x11D] = GLFW_KEY_RIGHT_CONTROL;
_glfw.win32.keycodes[0x036] = GLFW_KEY_RIGHT_SHIFT;
_glfw.win32.keycodes[0x15C] = GLFW_KEY_RIGHT_SUPER;
_glfw.win32.keycodes[0x150] = GLFW_KEY_DOWN;
_glfw.win32.keycodes[0x14B] = GLFW_KEY_LEFT;
_glfw.win32.keycodes[0x14D] = GLFW_KEY_RIGHT;
_glfw.win32.keycodes[0x148] = GLFW_KEY_UP;
_glfw.win32.keycodes[0x052] = GLFW_KEY_KP_0;
_glfw.win32.keycodes[0x04F] = GLFW_KEY_KP_1;
_glfw.win32.keycodes[0x050] = GLFW_KEY_KP_2;
_glfw.win32.keycodes[0x051] = GLFW_KEY_KP_3;
_glfw.win32.keycodes[0x04B] = GLFW_KEY_KP_4;
_glfw.win32.keycodes[0x04C] = GLFW_KEY_KP_5;
_glfw.win32.keycodes[0x04D] = GLFW_KEY_KP_6;
_glfw.win32.keycodes[0x047] = GLFW_KEY_KP_7;
_glfw.win32.keycodes[0x048] = GLFW_KEY_KP_8;
_glfw.win32.keycodes[0x049] = GLFW_KEY_KP_9;
_glfw.win32.keycodes[0x04E] = GLFW_KEY_KP_ADD;
_glfw.win32.keycodes[0x053] = GLFW_KEY_KP_DECIMAL;
_glfw.win32.keycodes[0x135] = GLFW_KEY_KP_DIVIDE;
_glfw.win32.keycodes[0x11C] = GLFW_KEY_KP_ENTER;
_glfw.win32.keycodes[0x059] = GLFW_KEY_KP_EQUAL;
_glfw.win32.keycodes[0x037] = GLFW_KEY_KP_MULTIPLY;
_glfw.win32.keycodes[0x04A] = GLFW_KEY_KP_SUBTRACT;
for (scancode = 0; scancode < 512; scancode++)
{
if (_glfw.win32.keycodes[scancode] > 0)
_glfw.win32.scancodes[_glfw.win32.keycodes[scancode]] = scancode;
}
}
// Creates a dummy window for behind-the-scenes work
//
static GLFWbool createHelperWindow(void)
{
MSG msg;
_glfw.win32.helperWindowHandle =
CreateWindowExW(WS_EX_OVERLAPPEDWINDOW,
_GLFW_WNDCLASSNAME,
L"GLFW message window",
WS_CLIPSIBLINGS | WS_CLIPCHILDREN,
0, 0, 1, 1,
NULL, NULL,
GetModuleHandleW(NULL),
NULL);
if (!_glfw.win32.helperWindowHandle)
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to create helper window");
return GLFW_FALSE;
}
// HACK: The command to the first ShowWindow call is ignored if the parent
// process passed along a STARTUPINFO, so clear that with a no-op call
ShowWindow(_glfw.win32.helperWindowHandle, SW_HIDE);
// Register for HID device notifications
{
DEV_BROADCAST_DEVICEINTERFACE_W dbi;
ZeroMemory(&dbi, sizeof(dbi));
dbi.dbcc_size = sizeof(dbi);
dbi.dbcc_devicetype = DBT_DEVTYP_DEVICEINTERFACE;
dbi.dbcc_classguid = GUID_DEVINTERFACE_HID;
_glfw.win32.deviceNotificationHandle =
RegisterDeviceNotificationW(_glfw.win32.helperWindowHandle,
(DEV_BROADCAST_HDR*) &dbi,
DEVICE_NOTIFY_WINDOW_HANDLE);
}
while (PeekMessageW(&msg, _glfw.win32.helperWindowHandle, 0, 0, PM_REMOVE))
{
TranslateMessage(&msg);
DispatchMessageW(&msg);
}
return GLFW_TRUE;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW internal API //////
//////////////////////////////////////////////////////////////////////////
// Returns a wide string version of the specified UTF-8 string
//
WCHAR* _glfwCreateWideStringFromUTF8Win32(const char* source)
{
WCHAR* target;
int count;
count = MultiByteToWideChar(CP_UTF8, 0, source, -1, NULL, 0);
if (!count)
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to convert string from UTF-8");
return NULL;
}
target = _glfw_calloc(count, sizeof(WCHAR));
if (!MultiByteToWideChar(CP_UTF8, 0, source, -1, target, count))
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to convert string from UTF-8");
_glfw_free(target);
return NULL;
}
return target;
}
// Returns a UTF-8 string version of the specified wide string
//
char* _glfwCreateUTF8FromWideStringWin32(const WCHAR* source)
{
char* target;
int size;
size = WideCharToMultiByte(CP_UTF8, 0, source, -1, NULL, 0, NULL, NULL);
if (!size)
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to convert string to UTF-8");
return NULL;
}
target = _glfw_calloc(size, 1);
if (!WideCharToMultiByte(CP_UTF8, 0, source, -1, target, size, NULL, NULL))
{
_glfwInputErrorWin32(GLFW_PLATFORM_ERROR,
"Win32: Failed to convert string to UTF-8");
_glfw_free(target);
return NULL;
}
return target;
}
// Reports the specified error, appending information about the last Win32 error
//
void _glfwInputErrorWin32(int error, const char* description)
{
WCHAR buffer[_GLFW_MESSAGE_SIZE] = L"";
char message[_GLFW_MESSAGE_SIZE] = "";
FormatMessageW(FORMAT_MESSAGE_FROM_SYSTEM |
FORMAT_MESSAGE_IGNORE_INSERTS |
FORMAT_MESSAGE_MAX_WIDTH_MASK,
NULL,
GetLastError() & 0xffff,
MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
buffer,
sizeof(buffer) / sizeof(WCHAR),
NULL);
WideCharToMultiByte(CP_UTF8, 0, buffer, -1, message, sizeof(message), NULL, NULL);
_glfwInputError(error, "%s: %s", description, message);
}
// Updates key names according to the current keyboard layout
//
void _glfwUpdateKeyNamesWin32(void)
{
int key;
BYTE state[256] = {0};
memset(_glfw.win32.keynames, 0, sizeof(_glfw.win32.keynames));
for (key = GLFW_KEY_SPACE; key <= GLFW_KEY_LAST; key++)
{
UINT vk;
int scancode, length;
WCHAR chars[16];
scancode = _glfw.win32.scancodes[key];
if (scancode == -1)
continue;
if (key >= GLFW_KEY_KP_0 && key <= GLFW_KEY_KP_ADD)
{
const UINT vks[] = {
VK_NUMPAD0, VK_NUMPAD1, VK_NUMPAD2, VK_NUMPAD3,
VK_NUMPAD4, VK_NUMPAD5, VK_NUMPAD6, VK_NUMPAD7,
VK_NUMPAD8, VK_NUMPAD9, VK_DECIMAL, VK_DIVIDE,
VK_MULTIPLY, VK_SUBTRACT, VK_ADD
};
vk = vks[key - GLFW_KEY_KP_0];
}
else
vk = MapVirtualKey(scancode, MAPVK_VSC_TO_VK);
length = ToUnicode(vk, scancode, state,
chars, sizeof(chars) / sizeof(WCHAR),
0);
if (length == -1)
{
length = ToUnicode(vk, scancode, state,
chars, sizeof(chars) / sizeof(WCHAR),
0);
}
if (length < 1)
continue;
WideCharToMultiByte(CP_UTF8, 0, chars, 1,
_glfw.win32.keynames[key],
sizeof(_glfw.win32.keynames[key]),
NULL, NULL);
}
}
// Replacement for IsWindowsVersionOrGreater as MinGW lacks versionhelpers.h
//
BOOL _glfwIsWindowsVersionOrGreaterWin32(WORD major, WORD minor, WORD sp)
{
OSVERSIONINFOEXW osvi = { sizeof(osvi), major, minor, 0, 0, {0}, sp };
DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_SERVICEPACKMAJOR;
ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
cond = VerSetConditionMask(cond, VER_SERVICEPACKMAJOR, VER_GREATER_EQUAL);
// HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
// latter lies unless the user knew to embed a non-default manifest
// announcing support for Windows 10 via supportedOS GUID
return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
}
// Checks whether we are on at least the specified build of Windows 10
//
BOOL _glfwIsWindows10BuildOrGreaterWin32(WORD build)
{
OSVERSIONINFOEXW osvi = { sizeof(osvi), 10, 0, build };
DWORD mask = VER_MAJORVERSION | VER_MINORVERSION | VER_BUILDNUMBER;
ULONGLONG cond = VerSetConditionMask(0, VER_MAJORVERSION, VER_GREATER_EQUAL);
cond = VerSetConditionMask(cond, VER_MINORVERSION, VER_GREATER_EQUAL);
cond = VerSetConditionMask(cond, VER_BUILDNUMBER, VER_GREATER_EQUAL);
// HACK: Use RtlVerifyVersionInfo instead of VerifyVersionInfoW as the
// latter lies unless the user knew to embed a non-default manifest
// announcing support for Windows 10 via supportedOS GUID
return RtlVerifyVersionInfo(&osvi, mask, cond) == 0;
}
//////////////////////////////////////////////////////////////////////////
////// GLFW platform API //////
//////////////////////////////////////////////////////////////////////////
int _glfwPlatformInit(void)
{
if (!loadLibraries())
return GLFW_FALSE;
createKeyTables();
_glfwUpdateKeyNamesWin32();
if (_glfwIsWindows10CreatorsUpdateOrGreaterWin32())
SetProcessDpiAwarenessContext(DPI_AWARENESS_CONTEXT_PER_MONITOR_AWARE_V2);
else if (IsWindows8Point1OrGreater())
SetProcessDpiAwareness(PROCESS_PER_MONITOR_DPI_AWARE);
else if (IsWindowsVistaOrGreater())
SetProcessDPIAware();
if (!_glfwRegisterWindowClassWin32())
return GLFW_FALSE;
if (!createHelperWindow())
return GLFW_FALSE;
_glfwInitTimerWin32();
_glfwPollMonitorsWin32();
return GLFW_TRUE;
}
void _glfwPlatformTerminate(void)
{
if (_glfw.win32.deviceNotificationHandle)
UnregisterDeviceNotification(_glfw.win32.deviceNotificationHandle);
if (_glfw.win32.helperWindowHandle)
DestroyWindow(_glfw.win32.helperWindowHandle);
_glfwUnregisterWindowClassWin32();
_glfw_free(_glfw.win32.clipboardString);
_glfw_free(_glfw.win32.rawInput);
_glfwTerminateWGL();
_glfwTerminateEGL();
freeLibraries();
}
const char* _glfwPlatformGetVersionString(void)
{
return _GLFW_VERSION_NUMBER " Win32 WGL EGL OSMesa"
#if defined(__MINGW64_VERSION_MAJOR)
" MinGW-w64"
#elif defined(__MINGW32__)
" MinGW"
#elif defined(_MSC_VER)
" VisualC"
#endif
#if defined(_GLFW_USE_HYBRID_HPG) || defined(_GLFW_USE_OPTIMUS_HPG)
" hybrid-GPU"
#endif
#if defined(_GLFW_BUILD_DLL)
" DLL"
#endif
;
}
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