X-Git-Url: http://git.mutantstargoat.com/user/nuclear/?a=blobdiff_plain;f=src%2Fmswin%2Ffreeglut_init_mswin.c;h=c7457de96cc4266c9981ef8c113198c424b12eec;hb=c5b343fbd61bdd4946f2e076e9f37223975a66ee;hp=e69de29bb2d1d6434b8b29ae775ad8c2e48c5391;hpb=23115ad49ced2f295f719e8cea6acad802402cdb;p=freeglut diff --git a/src/mswin/freeglut_init_mswin.c b/src/mswin/freeglut_init_mswin.c index e69de29..c7457de 100644 --- a/src/mswin/freeglut_init_mswin.c +++ b/src/mswin/freeglut_init_mswin.c @@ -0,0 +1,345 @@ +/* + * freeglut_init_mswin.c + * + * The Windows-specific mouse cursor related stuff. + * + * Copyright (c) 2012 Stephen J. Baker. All Rights Reserved. + * Written by John F. Fay, + * Creation date: Thu Jan 19, 2012 + * + * Permission is hereby granted, free of charge, to any person obtaining a + * copy of this software and associated documentation files (the "Software"), + * to deal in the Software without restriction, including without limitation + * the rights to use, copy, modify, merge, publish, distribute, sublicense, + * and/or sell copies of the Software, and to permit persons to whom the + * Software is furnished to do so, subject to the following conditions: + * + * The above copyright notice and this permission notice shall be included + * in all copies or substantial portions of the Software. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS + * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, + * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL + * PAWEL W. OLSZTA BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER + * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. + */ + +#define FREEGLUT_BUILDING_LIB +#include +#include "../Common/freeglut_internal.h" + + + +extern LRESULT CALLBACK fgPlatformWindowProc( HWND hWnd, UINT uMsg, + WPARAM wParam, LPARAM lParam ); + + +/* + * A call to this function should initialize all the display stuff... + */ +void fgPlatformInitialize( const char* displayName ) +{ + WNDCLASS wc; + ATOM atom; + + /* What we need to do is to initialize the fgDisplay global structure here. */ + fgDisplay.pDisplay.Instance = GetModuleHandle( NULL ); + fgDisplay.pDisplay.DisplayName= displayName ? strdup(displayName) : 0 ; + atom = GetClassInfo( fgDisplay.pDisplay.Instance, _T("FREEGLUT"), &wc ); + + if( atom == 0 ) + { + ZeroMemory( &wc, sizeof(WNDCLASS) ); + + /* + * Each of the windows should have its own device context, and we + * want redraw events during Vertical and Horizontal Resizes by + * the user. + * + * XXX Old code had "| CS_DBCLCKS" commented out. Plans for the + * XXX future? Dead-end idea? + */ + wc.lpfnWndProc = fgPlatformWindowProc; + wc.cbClsExtra = 0; + wc.cbWndExtra = 0; + wc.hInstance = fgDisplay.pDisplay.Instance; + wc.hIcon = LoadIcon( fgDisplay.pDisplay.Instance, _T("GLUT_ICON") ); + +#if defined(_WIN32_WCE) + wc.style = CS_HREDRAW | CS_VREDRAW; +#else + wc.style = CS_OWNDC | CS_HREDRAW | CS_VREDRAW; + if (!wc.hIcon) + wc.hIcon = LoadIcon( NULL, IDI_WINLOGO ); +#endif + + wc.hCursor = LoadCursor( NULL, IDC_ARROW ); + wc.hbrBackground = NULL; + wc.lpszMenuName = NULL; + wc.lpszClassName = _T("FREEGLUT"); + + /* Register the window class */ + atom = RegisterClass( &wc ); + FREEGLUT_INTERNAL_ERROR_EXIT ( atom, "Window Class Not Registered", "fgPlatformInitialize" ); + } + + /* The screen dimensions can be obtained via GetSystemMetrics() calls */ + fgDisplay.ScreenWidth = GetSystemMetrics( SM_CXSCREEN ); + fgDisplay.ScreenHeight = GetSystemMetrics( SM_CYSCREEN ); + + { + HWND desktop = GetDesktopWindow( ); + HDC context = GetDC( desktop ); + + fgDisplay.ScreenWidthMM = GetDeviceCaps( context, HORZSIZE ); + fgDisplay.ScreenHeightMM = GetDeviceCaps( context, VERTSIZE ); + + ReleaseDC( desktop, context ); + } + /* If we have a DisplayName try to use it for metrics */ + if( fgDisplay.pDisplay.DisplayName ) + { + HDC context = CreateDC(fgDisplay.pDisplay.DisplayName,0,0,0); + if( context ) + { + fgDisplay.ScreenWidth = GetDeviceCaps( context, HORZRES ); + fgDisplay.ScreenHeight = GetDeviceCaps( context, VERTRES ); + fgDisplay.ScreenWidthMM = GetDeviceCaps( context, HORZSIZE ); + fgDisplay.ScreenHeightMM = GetDeviceCaps( context, VERTSIZE ); + DeleteDC(context); + } + else + fgWarning("fgPlatformInitialize: " + "CreateDC failed, Screen size info may be incorrect\n" + "This is quite likely caused by a bad '-display' parameter"); + + } + /* Set the timer granularity to 1 ms */ + timeBeginPeriod ( 1 ); + + + fgState.Initialised = GL_TRUE; + + /* Avoid registering atexit callback on Win32 as it results in an access + * violation due to calling into a module which has been unloaded. + * Any cleanup isn't needed on Windows anyway, the OS takes care of it.c + * see: http://blogs.msdn.com/b/oldnewthing/archive/2012/01/05/10253268.aspx + */ +/* atexit(fgDeinitialize); */ + + /* InputDevice uses GlutTimerFunc(), so fgState.Initialised must be TRUE */ + fgInitialiseInputDevices(); +} + + + +/* Platform-Specific Deinitialization Functions: */ +extern void fghCloseInputDevices ( void ); + +void fgPlatformDeinitialiseInputDevices ( void ) +{ +#if !defined(_WIN32_WCE) + fghCloseInputDevices (); +#endif /* !defined(_WIN32_WCE) */ + fgState.JoysticksInitialised = GL_FALSE; + fgState.InputDevsInitialised = GL_FALSE; +} + +void fgPlatformCloseDisplay ( void ) +{ + if( fgDisplay.pDisplay.DisplayName ) + { + free( fgDisplay.pDisplay.DisplayName ); + fgDisplay.pDisplay.DisplayName = NULL; + } + + /* Reset the timer granularity */ + timeEndPeriod ( 1 ); +} + +void fgPlatformDestroyContext ( SFG_PlatformDisplay pDisplay, SFG_WindowContextType MContext ) +{ + /* Do nothing -- this is required for X11 */ +} + +/* + * Everything down to the end of the next two functions is copied from the X sources. + */ + +/* + +Copyright 1985, 1986, 1987,1998 The Open Group + +Permission to use, copy, modify, distribute, and sell this software and its +documentation for any purpose is hereby granted without fee, provided that +the above copyright notice appear in all copies and that both that +copyright notice and this permission notice appear in supporting +documentation. + +The above copyright notice and this permission notice shall be included +in all copies or substantial portions of the Software. + +THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS +OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF +MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. +IN NO EVENT SHALL THE OPEN GROUP BE LIABLE FOR ANY CLAIM, DAMAGES OR +OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, +ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR +OTHER DEALINGS IN THE SOFTWARE. + +Except as contained in this notice, the name of The Open Group shall +not be used in advertising or otherwise to promote the sale, use or +other dealings in this Software without prior written authorization +from The Open Group. + +*/ + +#define NoValue 0x0000 +#define XValue 0x0001 +#define YValue 0x0002 +#define WidthValue 0x0004 +#define HeightValue 0x0008 +#define AllValues 0x000F +#define XNegative 0x0010 +#define YNegative 0x0020 + +/* + * XParseGeometry parses strings of the form + * "=x{+-}{+-}", where + * width, height, xoffset, and yoffset are unsigned integers. + * Example: "=80x24+300-49" + * The equal sign is optional. + * It returns a bitmask that indicates which of the four values + * were actually found in the string. For each value found, + * the corresponding argument is updated; for each value + * not found, the corresponding argument is left unchanged. + */ + +static int +ReadInteger(char *string, char **NextString) +{ + register int Result = 0; + int Sign = 1; + + if (*string == '+') + string++; + else if (*string == '-') + { + string++; + Sign = -1; + } + for (; (*string >= '0') && (*string <= '9'); string++) + { + Result = (Result * 10) + (*string - '0'); + } + *NextString = string; + if (Sign >= 0) + return Result; + else + return -Result; +} + +int XParseGeometry ( + const char *string, + int *x, + int *y, + unsigned int *width, /* RETURN */ + unsigned int *height) /* RETURN */ +{ + int mask = NoValue; + register char *strind; + unsigned int tempWidth = 0, tempHeight = 0; + int tempX = 0, tempY = 0; + char *nextCharacter; + + if ( (string == NULL) || (*string == '\0')) + return mask; + if (*string == '=') + string++; /* ignore possible '=' at beg of geometry spec */ + + strind = (char *)string; + if (*strind != '+' && *strind != '-' && *strind != 'x') { + tempWidth = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return 0; + strind = nextCharacter; + mask |= WidthValue; + } + + if (*strind == 'x' || *strind == 'X') { + strind++; + tempHeight = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return 0; + strind = nextCharacter; + mask |= HeightValue; + } + + if ((*strind == '+') || (*strind == '-')) { + if (*strind == '-') { + strind++; + tempX = -ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return 0; + strind = nextCharacter; + mask |= XNegative; + } + else + { + strind++; + tempX = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return 0; + strind = nextCharacter; + } + mask |= XValue; + if ((*strind == '+') || (*strind == '-')) { + if (*strind == '-') { + strind++; + tempY = -ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return 0; + strind = nextCharacter; + mask |= YNegative; + } + else + { + strind++; + tempY = ReadInteger(strind, &nextCharacter); + if (strind == nextCharacter) + return 0; + strind = nextCharacter; + } + mask |= YValue; + } + } + + /* If strind isn't at the end of the string the it's an invalid + geometry specification. */ + + if (*strind != '\0') return 0; + + if (mask & XValue) + *x = tempX; + if (mask & YValue) + *y = tempY; + if (mask & WidthValue) + *width = tempWidth; + if (mask & HeightValue) + *height = tempHeight; + return mask; +} + + + +/* -- PLATFORM-SPECIFIC INTERFACE FUNCTION -------------------------------------------------- */ + +void (__cdecl *__glutExitFunc)( int return_value ) = NULL; + +void FGAPIENTRY __glutInitWithExit( int *pargc, char **argv, void (__cdecl *exit_function)(int) ) +{ + __glutExitFunc = exit_function; + glutInit(pargc, argv); +} +