windows ogl/d3d helpers

2004-09-21 08:55:39 +00:00
parent c88ddccc73
commit aa73f66bde
2 changed files with 464 additions and 0 deletions
@@ -0,0 +1,409 @@
+#include "global.h"
+#include "GraphicsWindow.h"
+#include "StepMania.h"
+#include "ProductInfo.h"
+#include "RageLog.h"
+#include "RageUtil.h"
+
+#include "archutils/Win32/AppInstance.h"
+#include "archutils/Win32/WindowIcon.h"
+
+static const CString g_sClassName = CString(PRODUCT_NAME) + " LowLevelWindow_Win32";
+
+static HDC g_HDC;
+static RageDisplay::VideoModeParams g_CurrentParams;
+static bool g_bResolutionChanged = false;
+static bool g_bHasFocus = true;
+static bool g_bLastHasFocus = true;
+static HICON g_hIcon = NULL;
+static bool m_bWideWindowClass;
+
+LRESULT CALLBACK GraphicsWindow::GraphicsWindow_WndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam )
+{
+	switch( msg )
+	{
+	case WM_ACTIVATE:
+	{
+		const bool bInactive = (LOWORD(wParam) == WA_INACTIVE);
+		const bool bMinimized = (HIWORD(wParam) != 0);
+		LOG->Trace("WM_ACTIVATE (%i, %i)",
+			bInactive, bMinimized );
+		g_bHasFocus = !bInactive && !bMinimized;
+
+		return 0;
+	}
+
+	/* Is there any reason we should care what size the user resizes the window to? */
+//	case WM_GETMINMAXINFO:
+
+	case WM_SETCURSOR:
+		if( !g_CurrentParams.windowed )
+		{
+			SetCursor( NULL );
+			return 1;
+		}
+		break;
+
+	case WM_SYSCOMMAND:
+		switch( wParam )
+		{
+		case SC_MONITORPOWER:
+		case SC_SCREENSAVE:
+			return 1;
+		}
+		break;
+
+	case WM_PAINT:
+	{
+		PAINTSTRUCT ps;
+		BeginPaint( hWnd, &ps );
+		EndPaint( hWnd, &ps );
+		break;
+	}
+
+	case WM_KEYDOWN:
+    case WM_KEYUP:
+    case WM_SYSKEYDOWN:
+    case WM_SYSKEYUP:
+		/* We handle all input ourself, via DirectInput. */
+		return 0;
+
+	case WM_CLOSE:
+		LOG->Trace("WM_CLOSE: shutting down");
+		ExitGame();
+		return 0;
+
+	case WM_WINDOWPOSCHANGED:
+	{
+		RECT rect;
+		GetClientRect( hWnd, &rect );
+
+		int iWidth = rect.right - rect.left;
+		int iHeight = rect.bottom - rect.top;
+		if( g_CurrentParams.width != iWidth || g_CurrentParams.height != iHeight )
+		{
+			g_CurrentParams.width = iWidth;
+			g_CurrentParams.height = iHeight;
+			g_bResolutionChanged = true;
+		}
+		break;
+	}
+	}
+
+	if( m_bWideWindowClass )
+		return DefWindowProcW( hWnd, msg, wParam, lParam );
+	else
+		return DefWindowProcA( hWnd, msg, wParam, lParam );
+}
+
+void GraphicsWindow::SetVideoModeParams( const RageDisplay::VideoModeParams &p )
+{
+	g_CurrentParams = p;
+}
+
+CString GraphicsWindow::SetScreenMode( const RageDisplay::VideoModeParams &p )
+{
+	if( p.windowed )
+	{
+		/* We're going windowed.  If we were previously fullscreen, reset. */
+		if( !g_CurrentParams.windowed )
+			ChangeDisplaySettings( NULL, 0 );
+
+		return "";
+	}
+
+	DEVMODE DevMode;
+	ZERO( DevMode );
+	DevMode.dmSize = sizeof(DEVMODE);
+	DevMode.dmPelsWidth = p.width;
+	DevMode.dmPelsHeight = p.height;
+	DevMode.dmBitsPerPel = p.bpp;
+	DevMode.dmFields = DM_PELSWIDTH | DM_PELSHEIGHT | DM_BITSPERPEL;
+
+	if( p.rate != REFRESH_DEFAULT )
+	{
+		DevMode.dmDisplayFrequency = p.rate;
+		DevMode.dmFields |= DM_DISPLAYFREQUENCY;
+	}
+	ChangeDisplaySettings( NULL, 0 );
+
+	int ret = ChangeDisplaySettings( &DevMode, CDS_FULLSCREEN );
+	if( ret != DISP_CHANGE_SUCCESSFUL && (DevMode.dmFields & DM_DISPLAYFREQUENCY) )
+	{
+		DevMode.dmFields &= ~DM_DISPLAYFREQUENCY;
+		ret = ChangeDisplaySettings( &DevMode, CDS_FULLSCREEN );
+	}
+
+	/* XXX: append error */
+	if( ret != DISP_CHANGE_SUCCESSFUL )
+		return "Couldn't set screen mode";
+
+	return "";
+}
+
+static int GetWindowStyle( const RageDisplay::VideoModeParams &p )
+{
+	if( p.windowed )
+		return WS_OVERLAPPEDWINDOW | WS_CLIPCHILDREN | WS_CLIPSIBLINGS;
+	else
+		return WS_POPUP;
+}
+
+void GraphicsWindow::CreateGraphicsWindow( const RageDisplay::VideoModeParams &p )
+{
+	ASSERT( g_hWndMain == NULL );
+
+	int iWindowStyle = GetWindowStyle(p);
+
+	AppInstance inst;
+	g_hWndMain = CreateWindow( g_sClassName, "app", iWindowStyle,
+					0, 0, 0, 0, NULL, NULL, inst, NULL );
+	if( g_hWndMain == NULL )
+		RageException::Throw( "%s", werr_ssprintf( GetLastError(), "CreateWindow" ).c_str() );
+
+//	SetForegroundWindow( g_hWndMain );
+
+	g_HDC = GetDC( g_hWndMain );
+}
+
+void GraphicsWindow::RecreateGraphicsWindow( const RageDisplay::VideoModeParams &p )
+{
+	ASSERT( g_hWndMain != NULL );
+
+	int iWindowStyle = GetWindowStyle(p);
+
+	AppInstance inst;
+	HWND hWnd = CreateWindow( g_sClassName, "app", iWindowStyle,
+					0, 0, 0, 0, NULL, NULL, inst, NULL );
+	if( hWnd == NULL )
+		RageException::Throw( "%s", werr_ssprintf( GetLastError(), "CreateWindow" ).c_str() );
+
+	SetForegroundWindow( hWnd );
+
+	DestroyGraphicsWindow();
+
+	g_hWndMain = hWnd;
+	g_HDC = GetDC( g_hWndMain );
+}
+
+/* Set the final window size, set the window text and icon, and then unhide the
+ * window. */
+void GraphicsWindow::ConfigureGraphicsWindow( const RageDisplay::VideoModeParams &p )
+{
+	ASSERT( g_hWndMain );
+
+	/* The window style may change as a result of switching to or from fullscreen;
+	 * apply it.  Don't change the WS_VISIBLE bit. */
+	int iWindowStyle = GetWindowStyle(p);
+	if( GetWindowLong( g_hWndMain, GWL_STYLE ) & WS_VISIBLE )
+		iWindowStyle |= WS_VISIBLE;
+	SetWindowLong( g_hWndMain, GWL_STYLE, iWindowStyle );
+
+	RECT WindowRect;
+	SetRect( &WindowRect, 0, 0, p.width, p.height );
+	AdjustWindowRect( &WindowRect, iWindowStyle, FALSE );
+
+	const int iWidth = WindowRect.right - WindowRect.left;
+	const int iHeight = WindowRect.bottom - WindowRect.top;
+
+	/* If windowed, center the window. */
+	int x = 0, y = 0;
+	if( p.windowed )
+	{
+        x = GetSystemMetrics(SM_CXSCREEN)/2-iWidth/2;
+        y = GetSystemMetrics(SM_CYSCREEN)/2-iHeight/2;
+	}
+
+	/* Move and resize the window.  SWP_FRAMECHANGED causes the above SetWindowLong
+	 * to take effect. */
+	SetWindowPos( g_hWndMain, HWND_NOTOPMOST, x, y, iWidth, iHeight, SWP_FRAMECHANGED );
+
+	/* Update the window title. */
+	do
+	{
+		if( m_bWideWindowClass )
+		{
+			if( SetWindowTextW( g_hWndMain, CStringToWstring(p.sWindowTitle).c_str() ) )
+				break;
+		}
+
+		SetWindowTextA( g_hWndMain, ConvertUTF8ToACP(p.sWindowTitle) );
+	} while(0);
+
+	/* Update the window icon. */
+	if( g_hIcon != NULL )
+	{
+		SetClassLong( g_hWndMain, GCL_HICON, (LONG) NULL );
+		DestroyIcon( g_hIcon );
+		g_hIcon = NULL;
+	}
+	g_hIcon = IconFromFile( p.sIconFile );
+	if( g_hIcon != NULL )
+		SetClassLong( g_hWndMain, GCL_HICON, (LONG) g_hIcon );
+
+	ShowWindow( g_hWndMain, SW_SHOW );
+
+	SetForegroundWindow( g_hWndMain );
+
+	/* Pump messages quickly, to make sure the window is completely set up.
+	 * If we don't do this, then starting up in a D3D fullscreen window may
+	 * cause all other windows on the system to be resized. */
+	MSG msg;
+	while( PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) )
+	{
+		GetMessage( &msg, NULL, 0, 0 );
+		DispatchMessage( &msg );
+	}
+}
+
+/* Shut down the window, but don't reset the video mode. */
+void GraphicsWindow::DestroyGraphicsWindow()
+{
+	if( g_HDC != NULL )
+	{
+		ReleaseDC( g_hWndMain, g_HDC );
+		g_HDC = NULL;
+	}
+
+	if( g_hWndMain != NULL )
+	{
+		DestroyWindow( g_hWndMain );
+		g_hWndMain = NULL;
+	}
+
+	if( g_hIcon != NULL )
+	{
+		DestroyIcon( g_hIcon );
+		g_hIcon = NULL;
+	}
+
+	MSG msg;
+	while( PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) )
+	{
+		GetMessage( &msg, NULL, 0, 0 );
+		DispatchMessage( &msg );
+	}
+
+}
+
+void GraphicsWindow::Initialize()
+{
+	AppInstance inst;
+	do
+	{
+		const wstring wsClassName = CStringToWstring( g_sClassName );
+		WNDCLASSW WindowClassW =
+		{
+			CS_OWNDC | CS_BYTEALIGNCLIENT,
+			GraphicsWindow_WndProc,
+			0,				/* cbClsExtra */
+			0,				/* cbWndExtra */
+			inst,			/* hInstance */
+			NULL,			/* set icon later */
+			LoadCursor( NULL, IDC_ARROW ),	/* default cursor */
+			NULL,			/* hbrBackground */
+			NULL,			/* lpszMenuName */
+			wsClassName.c_str()	/* lpszClassName */
+		}; 
+
+		m_bWideWindowClass = true;
+		if( RegisterClassW( &WindowClassW ) )
+			break;
+
+		WNDCLASS WindowClassA =
+		{
+			CS_OWNDC | CS_BYTEALIGNCLIENT,
+			GraphicsWindow_WndProc,
+			0,				/* cbClsExtra */
+			0,				/* cbWndExtra */
+			inst,			/* hInstance */
+			NULL,			/* set icon later */
+			LoadCursor( NULL, IDC_ARROW ),	/* default cursor */
+			NULL,			/* hbrBackground */
+			NULL,			/* lpszMenuName */
+			g_sClassName	/* lpszClassName */
+		}; 
+
+		m_bWideWindowClass = false;
+		if( !RegisterClassA( &WindowClassA ) )
+			RageException::Throw( "%s", werr_ssprintf( GetLastError(), "RegisterClass" ).c_str() );
+	} while(0);
+}
+
+void GraphicsWindow::Shutdown()
+{
+	DestroyGraphicsWindow();
+
+	/*
+	 * Return to the desktop resolution, if needed.
+	 *
+	 * It'd be nice to not do this: Windows will do it when we quit, and if we're
+	 * shutting down OpenGL to try D3D, this will cause extra mode switches.  However,
+	 * we need to do this before displaying dialogs.
+	 */
+	ChangeDisplaySettings( NULL, 0 );
+
+	AppInstance inst;
+	UnregisterClass( g_sClassName, inst );
+}
+
+HDC GraphicsWindow::GetHDC()
+{
+	ASSERT( g_HDC != NULL );
+	return g_HDC;
+}
+
+RageDisplay::VideoModeParams GraphicsWindow::GetParams()
+{
+	return g_CurrentParams;
+}
+
+void GraphicsWindow::Update()
+{
+	ASSERT( DISPLAY );
+
+	MSG msg;
+	while( PeekMessage( &msg, NULL, 0, 0, PM_NOREMOVE ) )
+	{
+		GetMessage( &msg, NULL, 0, 0 );
+		DispatchMessage( &msg );
+	}
+
+	if( g_bHasFocus != g_bLastHasFocus )
+	{
+		FocusChanged( g_bHasFocus );
+		g_bLastHasFocus = g_bHasFocus;
+	}
+
+	if( g_bResolutionChanged )
+	{
+		/* Let DISPLAY know that our resolution has changed. */
+		DISPLAY->ResolutionChanged();
+		g_bResolutionChanged = false;
+	}
+}
+
+/*
+ * (c) 2004 Glenn Maynard
+ * All rights reserved.
+ * 
+ * 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, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * 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 OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */
@@ -0,0 +1,55 @@
+/* Win32 helper - set up a window for OpenGL/D3D */
+#ifndef GRAPHICS_WINDOW_H
+#define GRAPHICS_WINDOW_H
+
+#include <windows.h>
+#include "RageDisplay.h" // for RageDisplay::VideoModeParams
+
+namespace GraphicsWindow
+{
+	/* Set up, and create a hidden window.  This only needs to be called once. */
+	void Initialize();
+
+	/* Shut down completely. */
+	void Shutdown();
+
+	void SetVideoModeParams( const RageDisplay::VideoModeParams &p );
+	CString SetScreenMode( const RageDisplay::VideoModeParams &p );
+	void CreateGraphicsWindow( const RageDisplay::VideoModeParams &p );
+void RecreateGraphicsWindow( const RageDisplay::VideoModeParams &p );
+	void DestroyGraphicsWindow();
+	void ConfigureGraphicsWindow( const RageDisplay::VideoModeParams &p );
+
+	LRESULT CALLBACK GraphicsWindow_WndProc( HWND hWnd, UINT msg, WPARAM wParam, LPARAM lParam );
+
+	RageDisplay::VideoModeParams GetParams();
+	HDC GetHDC();
+	void Update();
+};
+
+#endif
+
+/*
+ * (c) 2004 Glenn Maynard
+ * All rights reserved.
+ * 
+ * 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, and/or sell copies of the Software, and to permit persons to
+ * whom the Software is furnished to do so, provided that the above
+ * copyright notice(s) and this permission notice appear in all copies of
+ * the Software and that both the above copyright notice(s) and this
+ * permission notice appear in supporting documentation.
+ * 
+ * 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 OF
+ * THIRD PARTY RIGHTS. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS
+ * INCLUDED IN THIS NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT
+ * OR CONSEQUENTIAL DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS
+ * OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR
+ * OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+ * PERFORMANCE OF THIS SOFTWARE.
+ */