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Diffstat (limited to 'vcl/aqua/source/gdi/salogl.cxx')
| -rw-r--r-- | vcl/aqua/source/gdi/salogl.cxx | 351 |
1 files changed, 351 insertions, 0 deletions
diff --git a/vcl/aqua/source/gdi/salogl.cxx b/vcl/aqua/source/gdi/salogl.cxx new file mode 100644 index 000000000000..dc6cb109f5fa --- /dev/null +++ b/vcl/aqua/source/gdi/salogl.cxx @@ -0,0 +1,351 @@ +/************************************************************************* + * + * $RCSfile: salogl.cxx,v $ + * + * $Revision: 1.1.1.1 $ + * + * last change: $Author: hr $ $Date: 2000-09-18 17:05:26 $ + * + * The Contents of this file are made available subject to the terms of + * either of the following licenses + * + * - GNU Lesser General Public License Version 2.1 + * - Sun Industry Standards Source License Version 1.1 + * + * Sun Microsystems Inc., October, 2000 + * + * GNU Lesser General Public License Version 2.1 + * ============================================= + * Copyright 2000 by Sun Microsystems, Inc. + * 901 San Antonio Road, Palo Alto, CA 94303, USA + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License version 2.1, as published by the Free Software Foundation. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + * + * + * Sun Industry Standards Source License Version 1.1 + * ================================================= + * The contents of this file are subject to the Sun Industry Standards + * Source License Version 1.1 (the "License"); You may not use this file + * except in compliance with the License. You may obtain a copy of the + * License at http://www.openoffice.org/license.html. + * + * Software provided under this License is provided on an "AS IS" basis, + * WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, + * WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS, + * MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING. + * See the License for the specific provisions governing your rights and + * obligations concerning the Software. + * + * The Initial Developer of the Original Code is: Sun Microsystems, Inc. + * + * Copyright: 2000 by Sun Microsystems, Inc. + * + * All Rights Reserved. + * + * Contributor(s): _______________________________________ + * + * + ************************************************************************/ + +#ifndef _SVWIN_H +#include <tools/svwin.h> +#endif + +#define _SV_SALOGL_CXX + +#ifndef _SV_SALOGL_HXX +#include <salogl.hxx> +#endif +#ifndef _SV_SALGDI_HXX +#include <salgdi.hxx> +#endif + +// ------------------------------- +// - Additional typedefs for init. +// ------------------------------- + +typedef HGLRC ( *OGLFncCreateContext )( HDC hDC ); +typedef BOOL ( *OGLFncDeleteContext )( HGLRC hContext ); +typedef HGLRC ( *OGLFncGetCurrentContext )( void ); +typedef void ( *OGLFncMakeCurrent )( HDC hDC, HGLRC hContext ); + +// ------------ +// - Lib-Name - +// ------------ + +#ifdef WIN +#define OGL_LIBNAME "OPENGL32.DLL" +#endif + +// ---------- +// - Macros - +// ---------- + +#ifdef WIN +#define INIT_OGLFNC_WGL( FncName ) static OGLFnc##FncName pImplOpenWGLFnc##FncName = NULL; +#define GET_OGLFNC_WGL( FncName ) \ +pImplOpenWGLFnc##FncName = (OGLFnc##FncName##) GetProcAddress( hImplOGLLib, "wgl" #FncName ); \ +if( !pImplOpenWGLFnc##FncName ) bRet = FALSE; +#endif + +// ----------------- +// - Statics init. - +// ----------------- + +// Members +static HINSTANCE hImplOGLLib; +HGLRC SalOpenGL::mhOGLContext = 0; +HDC SalOpenGL::mhOGLLastDC = 0; +ULONG SalOpenGL::mnOGLState = OGL_STATE_UNLOADED; + +#ifdef +INIT_OGLFNC_WGL( CreateContext ); +INIT_OGLFNC_WGL( DeleteContext ); +INIT_OGLFNC_WGL( GetCurrentContext ); +INIT_OGLFNC_WGL( MakeCurrent ); +#endif + +// ----------- +// - WndProc - +// ----------- + +#ifdef WIN +LRESULT CALLBACK OpenGLWndProc( HWND hWnd,UINT nMsg, WPARAM nPar1, LPARAM nPar2 ) +{ + return DefWindowProc( hWnd, nMsg, nPar1, nPar2 ); +} +#endif + +// ------------- +// - SalOpenGL - +// ------------- + +SalOpenGL::SalOpenGL( SalGraphics* pGraphics ) +{ + // Set mhOGLLastDC only the first time a + // SalOpenGL object is created; we need + // this DC in SalOpenGL::Create(); + if ( OGL_STATE_UNLOADED == mnOGLState ) + mhOGLLastDC = pGraphics->maGraphicsData.mhDC; +} + +// ------------------------------------------------------------------------ + +SalOpenGL::~SalOpenGL() +{ +} + +// ------------------------------------------------------------------------ + +BOOL SalOpenGL::Create() +{ + BOOL bRet = FALSE; + + if ( OGL_STATE_UNLOADED == mnOGLState ) + { + if( ImplInitLib() ) + { +#ifdef WIN + USHORT nBitCount = GetDeviceCaps( mhOGLLastDC, BITSPIXEL ); + PIXELFORMATDESCRIPTOR pfd = + { + sizeof( PIXELFORMATDESCRIPTOR ), + 1, + PFD_DRAW_TO_WINDOW | PFD_SUPPORT_GDI | PFD_SUPPORT_OPENGL, + PFD_TYPE_RGBA, + (BYTE) nBitCount, + 0, 0, 0, 0, 0, 0, + 0, + 0, + 0, + 0, 0, 0, 0, + 16, + 0, + 0, + PFD_MAIN_PLANE, + 0, + 0, 0, 0 + }; + + const int nIndex = ChoosePixelFormat( mhOGLLastDC, &pfd ); + + if( nIndex && SetPixelFormat( mhOGLLastDC, nIndex, &pfd ) ) + { + if ( (nBitCount > 8) && ImplInit() && + (mhOGLContext = pImplOpenWGLFncCreateContext( mhOGLLastDC )) != 0 ) + { + WNDCLASS aWc; + HWND hDummyWnd; + + SaveDC( mhOGLLastDC ); + SelectClipRgn( mhOGLLastDC, NULL ); + pImplOpenWGLFncMakeCurrent( mhOGLLastDC, mhOGLContext ); + RestoreDC( mhOGLLastDC, -1 ); + mnOGLState = OGL_STATE_VALID; + bRet = TRUE; + + memset( &aWc, 0, sizeof( aWc ) ); + aWc.hInstance = GetModuleHandle( NULL ); + aWc.lpfnWndProc = OpenGLWndProc; + aWc.lpszClassName = "OpenGLWnd"; + RegisterClass( &aWc ); + hDummyWnd = CreateWindow( aWc.lpszClassName, NULL, WS_OVERLAPPED, 0, -50, 1, 1, HWND_DESKTOP, NULL, aWc.hInstance, 0 ); + ShowWindow( hDummyWnd, SW_SHOW ); + DestroyWindow( hDummyWnd ); + UnregisterClass( aWc.lpszClassName, aWc.hInstance ); + } + else + { + ImplFreeLib(); + mnOGLState = OGL_STATE_INVALID; + } + } + else + mnOGLState = OGL_STATE_INVALID; +#endif + } + else + mnOGLState = OGL_STATE_INVALID; + } + else if( OGL_STATE_VALID == mnOGLState ) + bRet = TRUE; + + return bRet; +} + +// ------------------------------------------------------------------------ + +void SalOpenGL::Release() +{ + ImplFreeLib(); +} + +// ------------------------------------------------------------------------ + +void* SalOpenGL::GetOGLFnc( const char* pFncName ) +{ +#ifdef WIN + if ( hImplOGLLib ) + return (void*)GetProcAddress( hImplOGLLib, pFncName ); + else +#endif + return NULL; +} + +// ------------------------------------------------------------------------ + +#ifdef WIN +typedef BOOL (WINAPI *MyFuncType)(HDC, HGLRC); +#endif + +void SalOpenGL::OGLEntry( SalGraphics* pGraphics ) +{ + if ( pGraphics->maGraphicsData.mhDC != mhOGLLastDC ) + { +#ifdef WIN + PIXELFORMATDESCRIPTOR pfd = + { + sizeof( PIXELFORMATDESCRIPTOR ), + 1, + PFD_DRAW_TO_WINDOW | PFD_SUPPORT_GDI | PFD_SUPPORT_OPENGL, + PFD_TYPE_RGBA, + GetDeviceCaps( pGraphics->maGraphicsData.mhDC, BITSPIXEL ), + 0, 0, 0, 0, 0, 0, + 0, + 0, + 0, + 0, 0, 0, 0, + 16, + 0, + 0, + PFD_MAIN_PLANE, + 0, + 0, 0, 0 + }; + + const int nIndex = ChoosePixelFormat( pGraphics->maGraphicsData.mhDC, &pfd ); + if ( nIndex && SetPixelFormat( pGraphics->maGraphicsData.mhDC, nIndex, &pfd ) ) + { + WNDCLASS aWc; + HWND hDummyWnd; + + pImplOpenWGLFncDeleteContext( mhOGLContext ); + mhOGLLastDC = pGraphics->maGraphicsData.mhDC; + mhOGLContext = pImplOpenWGLFncCreateContext( mhOGLLastDC ); + + SaveDC( mhOGLLastDC ); + SelectClipRgn( mhOGLLastDC, NULL ); + pImplOpenWGLFncMakeCurrent( mhOGLLastDC, mhOGLContext ); + RestoreDC( mhOGLLastDC, -1 ); + + memset( &aWc, 0, sizeof( aWc ) ); + aWc.hInstance = GetModuleHandle( NULL ); + aWc.lpfnWndProc = OpenGLWndProc; + aWc.lpszClassName = "OpenGLWnd"; + RegisterClass( &aWc ); + hDummyWnd = CreateWindow( aWc.lpszClassName, NULL, WS_OVERLAPPED, 0, -50, 1, 1, HWND_DESKTOP, NULL, aWc.hInstance, 0 ); + ShowWindow( hDummyWnd, SW_SHOW ); + DestroyWindow( hDummyWnd ); + UnregisterClass( aWc.lpszClassName, aWc.hInstance ); + } +#endif + } +} + +// ------------------------------------------------------------------------ + +void SalOpenGL::OGLExit( SalGraphics* pGraphics ) +{ +} + +// ------------------------------------------------------------------------ + +BOOL SalOpenGL::ImplInitLib() +{ +#ifdef WIN + return ((hImplOGLLib = LoadLibrary( OGL_LIBNAME )) != NULL); +#endif +} + +// ------------------------------------------------------------------------ + +void SalOpenGL::ImplFreeLib() +{ + if ( hImplOGLLib ) + { +#ifdef WIN + FreeLibrary( hImplOGLLib ); +#endif + hImplOGLLib = NULL; + mnOGLState = OGL_STATE_UNLOADED; + } +} + +// ------------------------------------------------------------------------ + +BOOL SalOpenGL::ImplInit() +{ + BOOL bRet = TRUE; + +#ifdef WIN + // Internal use + GET_OGLFNC_WGL( CreateContext ); + GET_OGLFNC_WGL( DeleteContext ); + GET_OGLFNC_WGL( GetCurrentContext ); + GET_OGLFNC_WGL( MakeCurrent ); +#endif + + return bRet; +} |