glfw/src/win32_platform.h

353 lines
12 KiB
C

//========================================================================
// GLFW - An OpenGL library
// Platform: Win32/WGL
// API version: 3.0
// WWW: http://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.
//
//========================================================================
#ifndef _platform_h_
#define _platform_h_
// We don't need all the fancy stuff
#define NOMINMAX
#define VC_EXTRALEAN
#ifndef WIN32_LEAN_AND_MEAN
#define WIN32_LEAN_AND_MEAN
#endif
// This is a workaround for the fact that glfw3.h needs to export APIENTRY (to
// correctly declare a GL_ARB_debug_output callback, for example) but windows.h
// thinks it is the only one that gets to do so
#undef APIENTRY
#include <windows.h>
#include <mmsystem.h>
#include <Dbt.h>
// This path may need to be changed if you build GLFW using your own setup
// We ship and use our own copy of wglext.h since GLFW uses fairly new
// extensions and not all operating systems come with an up-to-date version
#include "../support/GL/wglext.h"
//========================================================================
// Hack: Define things that some windows.h variants don't
//========================================================================
// 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_MOUSEHWHEEL
#define WM_MOUSEHWHEEL 0x020E
#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
//========================================================================
// 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);
typedef BOOL (WINAPI * GETDEVICEGAMMARAMP_T) (HDC,PVOID);
typedef BOOL (WINAPI * SETDEVICEGAMMARAMP_T) (HDC,PVOID);
#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.Win32.gdi.ChoosePixelFormat
#define _glfw_DescribePixelFormat _glfwLibrary.Win32.gdi.DescribePixelFormat
#define _glfw_GetPixelFormat _glfwLibrary.Win32.gdi.GetPixelFormat
#define _glfw_SetPixelFormat _glfwLibrary.Win32.gdi.SetPixelFormat
#define _glfw_SwapBuffers _glfwLibrary.Win32.gdi.SwapBuffers
#define _glfw_GetDeviceGammaRamp _glfwLibrary.Win32.gdi.GetDeviceGammaRamp
#define _glfw_SetDeviceGammaRamp _glfwLibrary.Win32.gdi.SetDeviceGammaRamp
#else
#define _glfw_ChoosePixelFormat ChoosePixelFormat
#define _glfw_DescribePixelFormat DescribePixelFormat
#define _glfw_GetPixelFormat GetPixelFormat
#define _glfw_SetPixelFormat SetPixelFormat
#define _glfw_SwapBuffers SwapBuffers
#define _glfw_GetDeviceGammaRamp GetDeviceGammaRamp
#define _glfw_SetDeviceGammaRamp SetDeviceGammaRamp
#endif // _GLFW_NO_DLOAD_GDI32
// winmm.dll shortcuts
#ifndef _GLFW_NO_DLOAD_WINMM
#define _glfw_joyGetDevCaps _glfwLibrary.Win32.winmm.joyGetDevCapsA
#define _glfw_joyGetPos _glfwLibrary.Win32.winmm.joyGetPos
#define _glfw_joyGetPosEx _glfwLibrary.Win32.winmm.joyGetPosEx
#define _glfw_timeGetTime _glfwLibrary.Win32.winmm.timeGetTime
#else
#define _glfw_joyGetDevCaps joyGetDevCapsA
#define _glfw_joyGetPos joyGetPos
#define _glfw_joyGetPosEx joyGetPosEx
#define _glfw_timeGetTime timeGetTime
#endif // _GLFW_NO_DLOAD_WINMM
// We use versioned window class names in order not to cause conflicts
// between applications using different versions of GLFW
#define _GLFW_WNDCLASSNAME "GLFW30"
#define _GLFW_PLATFORM_WINDOW_STATE _GLFWwindowWin32 Win32
#define _GLFW_PLATFORM_LIBRARY_STATE _GLFWlibraryWin32 Win32
#define _GLFW_PLATFORM_CONTEXT_STATE _GLFWcontextWGL WGL
#define _GLFW_PLATFORM_MONITOR_STATE _GLFWmonitorWin32 Win32
//========================================================================
// GLFW platform specific types
//========================================================================
//------------------------------------------------------------------------
// Pointer length integer
//------------------------------------------------------------------------
typedef INT_PTR GLFWintptr;
//------------------------------------------------------------------------
// Platform-specific OpenGL context structure
//------------------------------------------------------------------------
typedef struct _GLFWcontextWGL
{
// Platform specific window resources
HDC DC; // Private GDI device context
HGLRC context; // Permanent rendering context
// Platform specific extensions (context specific)
PFNWGLSWAPINTERVALEXTPROC SwapIntervalEXT;
PFNWGLGETPIXELFORMATATTRIBIVARBPROC GetPixelFormatAttribivARB;
PFNWGLGETEXTENSIONSSTRINGEXTPROC GetExtensionsStringEXT;
PFNWGLGETEXTENSIONSSTRINGARBPROC GetExtensionsStringARB;
PFNWGLCREATECONTEXTATTRIBSARBPROC CreateContextAttribsARB;
GLboolean EXT_swap_control;
GLboolean ARB_multisample;
GLboolean ARB_pixel_format;
GLboolean ARB_create_context;
GLboolean ARB_create_context_profile;
GLboolean EXT_create_context_es2_profile;
GLboolean ARB_create_context_robustness;
} _GLFWcontextWGL;
//------------------------------------------------------------------------
// Platform-specific window structure
//------------------------------------------------------------------------
typedef struct _GLFWwindowWin32
{
// Platform specific window resources
HWND handle; // Window handle
DWORD dwStyle; // Window styles used for window creation
DWORD dwExStyle; // --"--
// Various platform specific internal variables
int desiredRefreshRate; // Desired vertical monitor refresh rate
GLboolean cursorCentered;
int oldMouseX, oldMouseY;
} _GLFWwindowWin32;
//------------------------------------------------------------------------
// Platform-specific library global data
//------------------------------------------------------------------------
typedef struct _GLFWlibraryWin32
{
HINSTANCE instance; // Instance of the application
ATOM classAtom; // Window class atom
HHOOK keyboardHook; // Keyboard hook handle
DWORD foregroundLockTimeout;
// Default monitor
struct {
GLboolean modeChanged;
int width;
int height;
int bitsPerPixel;
int refreshRate;
} monitor;
// Timer data
struct {
GLboolean hasPerformanceCounter;
double resolution;
unsigned int t0_32;
__int64 t0_64;
} timer;
#ifndef _GLFW_NO_DLOAD_GDI32
// gdi32.dll
struct {
HINSTANCE instance;
CHOOSEPIXELFORMAT_T ChoosePixelFormat;
DESCRIBEPIXELFORMAT_T DescribePixelFormat;
GETPIXELFORMAT_T GetPixelFormat;
SETPIXELFORMAT_T SetPixelFormat;
SWAPBUFFERS_T SwapBuffers;
GETDEVICEGAMMARAMP_T GetDeviceGammaRamp;
SETDEVICEGAMMARAMP_T SetDeviceGammaRamp;
} gdi;
#endif // _GLFW_NO_DLOAD_GDI32
#ifndef _GLFW_NO_DLOAD_WINMM
// winmm.dll
struct {
HINSTANCE instance;
JOYGETDEVCAPSA_T joyGetDevCapsA;
JOYGETPOS_T joyGetPos;
JOYGETPOSEX_T joyGetPosEx;
TIMEGETTIME_T timeGetTime;
} winmm;
#endif // _GLFW_NO_DLOAD_WINMM
} _GLFWlibraryWin32;
//------------------------------------------------------------------------
// Platform-specific monitor structure
//------------------------------------------------------------------------
typedef struct _GLFWmonitorWin32
{
char name[32];
} _GLFWmonitorWin32;
//========================================================================
// Prototypes for platform specific internal functions
//========================================================================
// Time
void _glfwInitTimer(void);
// Monitor support
void _glfwInitMonitors(void);
void _glfwRefreshMonitors(void);
_GLFWmonitor* _glfwCreateMonitors(void);
_GLFWmonitor* _glfwDestroyMonitor(_GLFWmonitor* monitor);
// Fullscreen support
void _glfwSetVideoMode(int* width, int* height,
int* bpp, int* refreshRate,
GLboolean exactBPP);
void _glfwRestoreVideoMode(void);
#endif // _platform_h_