Added Box2D

external/Box2D-2.3.1/Box2D/glfw/win32_init.c

@@ -0,0 +1,269 @@
+//========================================================================
+// GLFW 3.0 Win32 - www.glfw.org
+//------------------------------------------------------------------------
+// Copyright (c) 2002-2006 Marcus Geelnard
+// Copyright (c) 2006-2010 Camilla Berglund <elmindreda@elmindreda.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.
+//
+//========================================================================
+
+#include "internal.h"
+
+#include <stdlib.h>
+#include <malloc.h>
+
+#ifdef __BORLANDC__
+// With the Borland C++ compiler, we want to disable FPU exceptions
+#include <float.h>
+#endif // __BORLANDC__
+
+
+#if defined(_GLFW_USE_OPTIMUS_HPG)
+
+// Applications exporting this symbol with this value will be automatically
+// directed to the high-performance GPU on nVidia Optimus systems
+//
+GLFWAPI DWORD NvOptimusEnablement = 0x00000001;
+
+#endif // _GLFW_USE_OPTIMUS_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 GLboolean initLibraries(void)
+{
+#ifndef _GLFW_NO_DLOAD_WINMM
+    // winmm.dll (for joystick and timer support)
+
+    _glfw.win32.winmm.instance = LoadLibrary(L"winmm.dll");
+    if (!_glfw.win32.winmm.instance)
+        return GL_FALSE;
+
+    _glfw.win32.winmm.joyGetDevCaps = (JOYGETDEVCAPS_T)
+        GetProcAddress(_glfw.win32.winmm.instance, "joyGetDevCapsW");
+    _glfw.win32.winmm.joyGetPos = (JOYGETPOS_T)
+        GetProcAddress(_glfw.win32.winmm.instance, "joyGetPos");
+    _glfw.win32.winmm.joyGetPosEx = (JOYGETPOSEX_T)
+        GetProcAddress(_glfw.win32.winmm.instance, "joyGetPosEx");
+    _glfw.win32.winmm.timeGetTime = (TIMEGETTIME_T)
+        GetProcAddress(_glfw.win32.winmm.instance, "timeGetTime");
+
+    if (!_glfw.win32.winmm.joyGetDevCaps ||
+        !_glfw.win32.winmm.joyGetPos ||
+        !_glfw.win32.winmm.joyGetPosEx ||
+        !_glfw.win32.winmm.timeGetTime)
+    {
+        return GL_FALSE;
+    }
+#endif // _GLFW_NO_DLOAD_WINMM
+
+    _glfw.win32.user32.instance = LoadLibrary(L"user32.dll");
+    if (_glfw.win32.user32.instance)
+    {
+        _glfw.win32.user32.SetProcessDPIAware = (SETPROCESSDPIAWARE_T)
+            GetProcAddress(_glfw.win32.user32.instance, "SetProcessDPIAware");
+    }
+
+    _glfw.win32.dwmapi.instance = LoadLibrary(L"dwmapi.dll");
+    if (_glfw.win32.dwmapi.instance)
+    {
+        _glfw.win32.dwmapi.DwmIsCompositionEnabled = (DWMISCOMPOSITIONENABLED_T)
+            GetProcAddress(_glfw.win32.dwmapi.instance, "DwmIsCompositionEnabled");
+    }
+
+    return GL_TRUE;
+}
+
+// Unload used libraries (DLLs)
+//
+static void terminateLibraries(void)
+{
+#ifndef _GLFW_NO_DLOAD_WINMM
+    if (_glfw.win32.winmm.instance != NULL)
+    {
+        FreeLibrary(_glfw.win32.winmm.instance);
+        _glfw.win32.winmm.instance = NULL;
+    }
+#endif // _GLFW_NO_DLOAD_WINMM
+
+    if (_glfw.win32.user32.instance)
+        FreeLibrary(_glfw.win32.user32.instance);
+
+    if (_glfw.win32.dwmapi.instance)
+        FreeLibrary(_glfw.win32.dwmapi.instance);
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW internal API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+// Returns whether desktop compositing is enabled
+//
+BOOL _glfwIsCompositionEnabled(void)
+{
+    BOOL enabled;
+
+    if (!_glfw_DwmIsCompositionEnabled)
+        return FALSE;
+
+    if (_glfw_DwmIsCompositionEnabled(&enabled) != S_OK)
+        return FALSE;
+
+    return enabled;
+}
+
+// Returns a wide string version of the specified UTF-8 string
+//
+WCHAR* _glfwCreateWideStringFromUTF8(const char* source)
+{
+    WCHAR* target;
+    int length;
+
+    length = MultiByteToWideChar(CP_UTF8, 0, source, -1, NULL, 0);
+    if (!length)
+        return NULL;
+
+    target = calloc(length + 1, sizeof(WCHAR));
+
+    if (!MultiByteToWideChar(CP_UTF8, 0, source, -1, target, length + 1))
+    {
+        free(target);
+        return NULL;
+    }
+
+    return target;
+}
+
+// Returns a UTF-8 string version of the specified wide string
+//
+char* _glfwCreateUTF8FromWideString(const WCHAR* source)
+{
+    char* target;
+    int length;
+
+    length = WideCharToMultiByte(CP_UTF8, 0, source, -1, NULL, 0, NULL, NULL);
+    if (!length)
+        return NULL;
+
+    target = calloc(length + 1, sizeof(char));
+
+    if (!WideCharToMultiByte(CP_UTF8, 0, source, -1, target, length + 1, NULL, NULL))
+    {
+        free(target);
+        return NULL;
+    }
+
+    return target;
+}
+
+
+//////////////////////////////////////////////////////////////////////////
+//////                       GLFW platform API                      //////
+//////////////////////////////////////////////////////////////////////////
+
+int _glfwPlatformInit(void)
+{
+    // To make SetForegroundWindow work as we want, we need to fiddle
+    // with the FOREGROUNDLOCKTIMEOUT system setting (we do this as early
+    // as possible in the hope of still being the foreground process)
+    SystemParametersInfo(SPI_GETFOREGROUNDLOCKTIMEOUT, 0,
+                         &_glfw.win32.foregroundLockTimeout, 0);
+    SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0, UIntToPtr(0),
+                         SPIF_SENDCHANGE);
+
+    if (!initLibraries())
+        return GL_FALSE;
+
+    if (_glfw_SetProcessDPIAware)
+        _glfw_SetProcessDPIAware();
+
+#ifdef __BORLANDC__
+    // With the Borland C++ compiler, we want to disable FPU exceptions
+    // (this is recommended for OpenGL applications under Windows)
+    _control87(MCW_EM, MCW_EM);
+#endif
+
+    if (!_glfwInitContextAPI())
+        return GL_FALSE;
+
+    _glfwInitTimer();
+    _glfwInitJoysticks();
+
+    return GL_TRUE;
+}
+
+void _glfwPlatformTerminate(void)
+{
+    if (_glfw.win32.classAtom)
+    {
+        UnregisterClass(_GLFW_WNDCLASSNAME, GetModuleHandle(NULL));
+        _glfw.win32.classAtom = 0;
+    }
+
+    // Restore previous foreground lock timeout system setting
+    SystemParametersInfo(SPI_SETFOREGROUNDLOCKTIMEOUT, 0,
+                         UIntToPtr(_glfw.win32.foregroundLockTimeout),
+                         SPIF_SENDCHANGE);
+
+    free(_glfw.win32.clipboardString);
+
+    _glfwTerminateJoysticks();
+    _glfwTerminateContextAPI();
+    terminateLibraries();
+}
+
+const char* _glfwPlatformGetVersionString(void)
+{
+    const char* version = _GLFW_VERSION_FULL " Win32"
+#if defined(_GLFW_WGL)
+        " WGL"
+#elif defined(_GLFW_EGL)
+        " EGL"
+#endif
+#if defined(__MINGW32__)
+        " MinGW"
+#elif defined(_MSC_VER)
+        " VisualC "
+#elif defined(__BORLANDC__)
+        " BorlandC"
+#endif
+#if !defined(_GLFW_NO_DLOAD_WINMM)
+        " LoadLibrary(winmm)"
+#endif
+#if defined(_GLFW_BUILD_DLL)
+        " DLL"
+#endif
+        ;
+
+    return version;
+}
+