GLFW-0.2: glfw/lib/win32/platform.h
//========================================================================
// GLFW - An OpenGL framework
// File: platform.h
// Platform: Windows
// API version: 2.6
// WWW: http://glfw.sourceforge.net
//------------------------------------------------------------------------
// Copyright (c) 2002-2006 Camilla Berglund
//
// 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.
//
//========================================================================
#ifndef _platform_h_
#define _platform_h_
// This is the Windows version of GLFW
#define _GLFW_WIN32
// Include files
#include <windows.h>
#include <mmsystem.h>
#include "../../include/GL/glfw.h"
//========================================================================
// Hack: Define things that some <windows.h>'s do not define
//========================================================================
// Some old versions of w32api (used by MinGW and Cygwin) define
// WH_KEYBOARD_LL without typedef:ing KBDLLHOOKSTRUCT (!)
#if defined(__MINGW32__) || defined(__CYGWIN__)
#include <w32api.h>
#if defined(WH_KEYBOARD_LL) && (__W32API_MAJOR_VERSION == 1) && (__W32API_MINOR_VERSION <= 2)
#undef WH_KEYBOARD_LL
#endif
#endif
//------------------------------------------------------------------------
// ** NOTE ** If this gives you compiler errors and you are using MinGW
// (or Dev-C++), update to w32api version 1.3 or later:
// http://sourceforge.net/project/showfiles.php?group_id=2435
//------------------------------------------------------------------------
#ifndef WH_KEYBOARD_LL
#define WH_KEYBOARD_LL 13
typedef struct tagKBDLLHOOKSTRUCT {
DWORD vkCode;
DWORD scanCode;
DWORD flags;
DWORD time;
DWORD dwExtraInfo;
} KBDLLHOOKSTRUCT, FAR *LPKBDLLHOOKSTRUCT, *PKBDLLHOOKSTRUCT;
#endif // WH_KEYBOARD_LL
#ifndef LLKHF_ALTDOWN
#define LLKHF_ALTDOWN 0x00000020
#endif
#ifndef SPI_SETSCREENSAVERRUNNING
#define SPI_SETSCREENSAVERRUNNING 97
#endif
#ifndef SPI_GETANIMATION
#define SPI_GETANIMATION 72
#endif
#ifndef SPI_SETANIMATION
#define SPI_SETANIMATION 73
#endif
#ifndef SPI_GETFOREGROUNDLOCKTIMEOUT
#define SPI_GETFOREGROUNDLOCKTIMEOUT 0x2000
#endif
#ifndef SPI_SETFOREGROUNDLOCKTIMEOUT
#define SPI_SETFOREGROUNDLOCKTIMEOUT 0x2001
#endif
#ifndef CDS_FULLSCREEN
#define CDS_FULLSCREEN 4
#endif
#ifndef PFD_GENERIC_ACCELERATED
#define PFD_GENERIC_ACCELERATED 0x00001000
#endif
#ifndef PFD_DEPTH_DONTCARE
#define PFD_DEPTH_DONTCARE 0x20000000
#endif
#ifndef ENUM_CURRENT_SETTINGS
#define ENUM_CURRENT_SETTINGS -1
#endif
#ifndef ENUM_REGISTRY_SETTINGS
#define ENUM_REGISTRY_SETTINGS -2
#endif
#ifndef WM_MOUSEWHEEL
#define WM_MOUSEWHEEL 0x020A
#endif
#ifndef WHEEL_DELTA
#define WHEEL_DELTA 120
#endif
#ifndef WM_XBUTTONDOWN
#define WM_XBUTTONDOWN 0x020B
#endif
#ifndef WM_XBUTTONUP
#define WM_XBUTTONUP 0x020C
#endif
#ifndef XBUTTON1
#define XBUTTON1 1
#endif
#ifndef XBUTTON2
#define XBUTTON2 2
#endif
// wglSwapIntervalEXT typedef (Win32 buffer-swap interval control)
typedef int (APIENTRY * WGLSWAPINTERVALEXT_T) (int);
// wglChoosePixelFormatARB typedef
typedef BOOL (WINAPI * WGLCHOOSEPIXELFORMATARB_T) (HDC, const int *, const FLOAT *, UINT, int *, UINT *);
// wglGetPixelFormatAttribivARB typedef
typedef BOOL (WINAPI * WGLGETPIXELFORMATATTRIBIVARB_T) (HDC, int, int, UINT, const int *, int *);
// wglGetExtensionStringEXT typedef
typedef const char *(APIENTRY * WGLGETEXTENSIONSSTRINGEXT_T)( void );
// wglGetExtensionStringARB typedef
typedef const char *(APIENTRY * WGLGETEXTENSIONSSTRINGARB_T)( HDC );
#define WGL_DRAW_TO_WINDOW_ARB 0x2001
#define WGL_SUPPORT_OPENGL_ARB 0x2010
#define WGL_ACCELERATION_ARB 0x2003
#define WGL_FULL_ACCELERATION_ARB 0x2027
#define WGL_DOUBLE_BUFFER_ARB 0x2011
#define WGL_STEREO_ARB 0x2012
#define WGL_COLOR_BITS_ARB 0x2014
#define WGL_RED_BITS_ARB 0x2015
#define WGL_GREEN_BITS_ARB 0x2017
#define WGL_BLUE_BITS_ARB 0x2019
#define WGL_ALPHA_BITS_ARB 0x201B
#define WGL_ACCUM_BITS_ARB 0x201D
#define WGL_ACCUM_RED_BITS_ARB 0x201E
#define WGL_ACCUM_GREEN_BITS_ARB 0x201F
#define WGL_ACCUM_BLUE_BITS_ARB 0x2020
#define WGL_ACCUM_ALPHA_BITS_ARB 0x2021
#define WGL_DEPTH_BITS_ARB 0x2022
#define WGL_STENCIL_BITS_ARB 0x2023
#define WGL_AUX_BUFFERS_ARB 0x2024
#define WGL_SAMPLE_BUFFERS_ARB 0x2041
#define WGL_SAMPLES_ARB 0x2042
//========================================================================
// DLLs that are loaded at glfwInit()
//========================================================================
// gdi32.dll function pointer typedefs
#ifndef _GLFW_NO_DLOAD_GDI32
typedef int (WINAPI * CHOOSEPIXELFORMAT_T) (HDC,CONST PIXELFORMATDESCRIPTOR*);
typedef int (WINAPI * DESCRIBEPIXELFORMAT_T) (HDC,int,UINT,LPPIXELFORMATDESCRIPTOR);
typedef int (WINAPI * GETPIXELFORMAT_T) (HDC);
typedef BOOL (WINAPI * SETPIXELFORMAT_T) (HDC,int,const PIXELFORMATDESCRIPTOR*);
typedef BOOL (WINAPI * SWAPBUFFERS_T) (HDC);
#endif // _GLFW_NO_DLOAD_GDI32
// winmm.dll function pointer typedefs
#ifndef _GLFW_NO_DLOAD_WINMM
typedef MMRESULT (WINAPI * JOYGETDEVCAPSA_T) (UINT,LPJOYCAPSA,UINT);
typedef MMRESULT (WINAPI * JOYGETPOS_T) (UINT,LPJOYINFO);
typedef MMRESULT (WINAPI * JOYGETPOSEX_T) (UINT,LPJOYINFOEX);
typedef DWORD (WINAPI * TIMEGETTIME_T) (void);
#endif // _GLFW_NO_DLOAD_WINMM
// gdi32.dll shortcuts
#ifndef _GLFW_NO_DLOAD_GDI32
#define _glfw_ChoosePixelFormat _glfwLibrary.Libs.ChoosePixelFormat
#define _glfw_DescribePixelFormat _glfwLibrary.Libs.DescribePixelFormat
#define _glfw_GetPixelFormat _glfwLibrary.Libs.GetPixelFormat
#define _glfw_SetPixelFormat _glfwLibrary.Libs.SetPixelFormat
#define _glfw_SwapBuffers _glfwLibrary.Libs.SwapBuffers
#else
#define _glfw_ChoosePixelFormat ChoosePixelFormat
#define _glfw_DescribePixelFormat DescribePixelFormat
#define _glfw_GetPixelFormat GetPixelFormat
#define _glfw_SetPixelFormat SetPixelFormat
#define _glfw_SwapBuffers SwapBuffers
#endif // _GLFW_NO_DLOAD_GDI32
// winmm.dll shortcuts
#ifndef _GLFW_NO_DLOAD_WINMM
#define _glfw_joyGetDevCaps _glfwLibrary.Libs.joyGetDevCapsA
#define _glfw_joyGetPos _glfwLibrary.Libs.joyGetPos
#define _glfw_joyGetPosEx _glfwLibrary.Libs.joyGetPosEx
#define _glfw_timeGetTime _glfwLibrary.Libs.timeGetTime
#else
#define _glfw_joyGetDevCaps joyGetDevCapsA
#define _glfw_joyGetPos joyGetPos
#define _glfw_joyGetPosEx joyGetPosEx
#define _glfw_timeGetTime timeGetTime
#endif // _GLFW_NO_DLOAD_WINMM
//========================================================================
// Global variables (GLFW internals)
//========================================================================
//------------------------------------------------------------------------
// Window structure
//------------------------------------------------------------------------
typedef struct _GLFWwin_struct _GLFWwin;
struct _GLFWwin_struct {
// ========= PLATFORM INDEPENDENT MANDATORY PART =========================
// User callback functions
GLFWwindowsizefun WindowSizeCallback;
GLFWwindowclosefun WindowCloseCallback;
GLFWwindowrefreshfun WindowRefreshCallback;
GLFWmousebuttonfun MouseButtonCallback;
GLFWmouseposfun MousePosCallback;
GLFWmousewheelfun MouseWheelCallback;
GLFWkeyfun KeyCallback;
GLFWcharfun CharCallback;
// User selected window settings
int Fullscreen; // Fullscreen flag
int MouseLock; // Mouse-lock flag
int AutoPollEvents; // Auto polling flag
int SysKeysDisabled; // System keys disabled flag
int WindowNoResize; // Resize- and maximize gadgets disabled flag
// Window status & parameters
int Opened; // Flag telling if window is opened or not
int Active; // Application active flag
int Iconified; // Window iconified flag
int Width, Height; // Window width and heigth
int Accelerated; // GL_TRUE if window is HW accelerated
int RedBits;
int GreenBits;
int BlueBits;
int AlphaBits;
int DepthBits;
int StencilBits;
int AccumRedBits;
int AccumGreenBits;
int AccumBlueBits;
int AccumAlphaBits;
int AuxBuffers;
int Stereo;
int RefreshRate; // Vertical monitor refresh rate
int Samples;
// Extensions & OpenGL version
int Has_GL_SGIS_generate_mipmap;
int Has_GL_ARB_texture_non_power_of_two;
int GLVerMajor,GLVerMinor;
// ========= PLATFORM SPECIFIC PART ======================================
// Platform specific window resources
HDC DC; // Private GDI device context
HGLRC RC; // Permanent rendering context
HWND Wnd; // Window handle
ATOM ClassAtom; // Window class atom
int ModeID; // Mode ID for fullscreen mode
HHOOK KeyboardHook; // Keyboard hook handle
DWORD dwStyle; // Window styles used for window creation
DWORD dwExStyle; // --"--
// Platform specific extensions (context specific)
WGLSWAPINTERVALEXT_T SwapInterval;
WGLCHOOSEPIXELFORMATARB_T ChoosePixelFormat;
WGLGETPIXELFORMATATTRIBIVARB_T GetPixelFormatAttribiv;
WGLGETEXTENSIONSSTRINGEXT_T GetExtensionsStringEXT;
WGLGETEXTENSIONSSTRINGARB_T GetExtensionsStringARB;
// Various platform specific internal variables
int OldMouseLock; // Old mouse-lock flag (used for remembering
// mouse-lock state when iconifying)
int OldMouseLockValid;
int DesiredRefreshRate; // Desired vertical monitor refresh rate
};
GLFWGLOBAL _GLFWwin _glfwWin;
//------------------------------------------------------------------------
// User input status (most of this should go in _GLFWwin)
//------------------------------------------------------------------------
GLFWGLOBAL struct {
// ========= PLATFORM INDEPENDENT MANDATORY PART =========================
// Mouse status
int MousePosX, MousePosY;
int WheelPos;
char MouseButton[ GLFW_MOUSE_BUTTON_LAST+1 ];
// Keyboard status
char Key[ GLFW_KEY_LAST+1 ];
int LastChar;
// User selected settings
int StickyKeys;
int StickyMouseButtons;
int KeyRepeat;
// ========= PLATFORM SPECIFIC PART ======================================
// Platform specific internal variables
int MouseMoved, OldMouseX, OldMouseY;
} _glfwInput;
//------------------------------------------------------------------------
// Library global data
//------------------------------------------------------------------------
GLFWGLOBAL struct {
// ========= PLATFORM SPECIFIC PART ======================================
HINSTANCE Instance; // Instance of the application
// Timer data
struct {
int HasPerformanceCounter;
double Resolution;
unsigned int t0_32;
__int64 t0_64;
} Timer;
// System information
struct {
int WinVer;
int HasUnicode;
DWORD ForegroundLockTimeout;
} Sys;
#if !defined(_GLFW_NO_DLOAD_WINMM) || !defined(_GLFW_NO_DLOAD_GDI32)
// Library handles and function pointers
struct {
#ifndef _GLFW_NO_DLOAD_GDI32
// gdi32.dll
HINSTANCE gdi32;
CHOOSEPIXELFORMAT_T ChoosePixelFormat;
DESCRIBEPIXELFORMAT_T DescribePixelFormat;
GETPIXELFORMAT_T GetPixelFormat;
SETPIXELFORMAT_T SetPixelFormat;
SWAPBUFFERS_T SwapBuffers;
#endif // _GLFW_NO_DLOAD_GDI32
// winmm.dll
#ifndef _GLFW_NO_DLOAD_WINMM
HINSTANCE winmm;
JOYGETDEVCAPSA_T joyGetDevCapsA;
JOYGETPOS_T joyGetPos;
JOYGETPOSEX_T joyGetPosEx;
TIMEGETTIME_T timeGetTime;
#endif // _GLFW_NO_DLOAD_WINMM
} Libs;
#endif
} _glfwLibrary;
//------------------------------------------------------------------------
// Thread record (one for each thread)
//------------------------------------------------------------------------
typedef struct _GLFWthread_struct _GLFWthread;
struct _GLFWthread_struct {
// ========= PLATFORM INDEPENDENT MANDATORY PART =========================
// Pointer to previous and next threads in linked list
_GLFWthread *Previous, *Next;
// GLFW user side thread information
GLFWthread ID;
GLFWthreadfun Function;
// ========= PLATFORM SPECIFIC PART ======================================
// System side thread information
HANDLE Handle;
DWORD WinID;
};
//------------------------------------------------------------------------
// General thread information
//------------------------------------------------------------------------
GLFWGLOBAL struct {
// ========= PLATFORM INDEPENDENT MANDATORY PART =========================
// Next thread ID to use (increments for every created thread)
GLFWthread NextID;
// First thread in linked list (always the main thread)
_GLFWthread First;
// ========= PLATFORM SPECIFIC PART ======================================
// Critical section lock
CRITICAL_SECTION CriticalSection;
} _glfwThrd;
//========================================================================
// Macros for encapsulating critical code sections (i.e. making parts
// of GLFW thread safe)
//========================================================================
// Thread list management
#define ENTER_THREAD_CRITICAL_SECTION \
EnterCriticalSection( &_glfwThrd.CriticalSection );
#define LEAVE_THREAD_CRITICAL_SECTION \
LeaveCriticalSection( &_glfwThrd.CriticalSection );
//========================================================================
// Various Windows version constants
//========================================================================
#define _GLFW_WIN_UNKNOWN 0x0000 // Earlier than 95 or NT4
#define _GLFW_WIN_95 0x0001
#define _GLFW_WIN_98 0x0002
#define _GLFW_WIN_ME 0x0003
#define _GLFW_WIN_UNKNOWN_9x 0x0004 // Later than ME
#define _GLFW_WIN_NT4 0x0101
#define _GLFW_WIN_2K 0x0102
#define _GLFW_WIN_XP 0x0103
#define _GLFW_WIN_NET_SERVER 0x0104
#define _GLFW_WIN_UNKNOWN_NT 0x0105 // Later than .NET Server
//========================================================================
// Prototypes for platform specific internal functions
//========================================================================
// Time
void _glfwInitTimer( void );
// Fullscreen support
int _glfwGetClosestVideoModeBPP( int *w, int *h, int *bpp, int *refresh );
int _glfwGetClosestVideoMode( int *w, int *h, int *r, int *g, int *b, int *refresh );
void _glfwSetVideoModeMODE( int mode );
void _glfwSetVideoMode( int *w, int *h, int r, int g, int b, int refresh );
#endif // _platform_h_