screen_savers: Initial import of GLife

* Donated to Haiku by author (Aaron Hill) under
  the MIT license.
* Resources conveted to rdef
* Headers cleaned up
* Jamfile created

src/add-ons/screen_savers/Jamfile

@@ -3,6 +3,7 @@ SubDir HAIKU_TOP src add-ons screen_savers ;
 SubInclude HAIKU_TOP src add-ons screen_savers butterfly ;
 SubInclude HAIKU_TOP src add-ons screen_savers debugnow ;
 SubInclude HAIKU_TOP src add-ons screen_savers flurry ;
+#SubInclude HAIKU_TOP src add-ons screen_savers glife ;
 SubInclude HAIKU_TOP src add-ons screen_savers haiku ;
 SubInclude HAIKU_TOP src add-ons screen_savers icons ;
 SubInclude HAIKU_TOP src add-ons screen_savers ifs ;

src/add-ons/screen_savers/glife/GLife.rdef

@@ -0,0 +1,69 @@
+
+resource app_signature "application/x-vnd.Haiku-GLifeScreensaver";
+
+resource app_name_catalog_entry "x-vnd.Haiku-GLifeScreensaver:System name:GLife";
+
+resource app_version {
+    major  = 1,
+    middle = 0,
+    minor  = 0,
+    variety = 0,
+    internal = 0,
+    short_info = "1.0.0",
+    long_info = "A GL 'Game of Life' Screensaver"
+};
+
+
+resource large_icon array {
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00000000000000FFFFFF"
+	$"FFFFFFFF3939FFFFFFFFFFFFFFFFFFFFFFFFFFFFFF00FFFFFFFFFFFFFF00FFFF"
+	$"FFFFFF3934343939FFFFFFFFFFFFFFFFFFFFFFFF00FF000000FFFFFFFFFF00FF"
+	$"FFFF3934343434343939FFFFFFFFFFFFFFFFFFFF00FFFFFF00FF000000FF00FF"
+	$"FF393434343434349FDF3939FFFFFFFFFFFFFFFF00FFFF00FFFFFFFF00FF00FF"
+	$"394F34343434349F9F3934343939FFFFFFFFFFFF00FF000000FFFF00FFFF00FF"
+	$"39374F4F34349F9F3934343434343939FFFFFFFF00FFFFFFFFFF000000FF00FF"
+	$"393737374F9F9F393434343434349FDFFFFFFFFFFF00FFFFFFFFFFFFFFFF00FF"
+	$"39373737379F394F34343434349F9FDFFFFFFFFFFFFF00000000000000FF00FF"
+	$"39393737379F39374F4F34349F9F9FDFFFFFFFFFFFFFFFFFFFFFFFFFFF0000FF"
+	$"FFFF3939379F393737374F9F9F9F9FDFFFFFFFFFFFFF3939FFFFFFFFFFFF00FF"
+	$"FFFFFFFF39DF39373737379F9F9FDFFFFFFFFFFFFF3934343939FFFFFFFFFFFF"
+	$"FFFFFF39343439393737379F9FDFFFFF3939FFFF3934343434343939FFFFFFFF"
+	$"FFFF3934343434343939379FDFFFFF39343439393434343434349FDFFFFFFFFF"
+	$"FF393434343434349FDF39DFFFFF39343434394F34343434349F9FDFFFFFFFFF"
+	$"394F34343434349F9F393434FF393434343439374F4F34349F9F9FDFFFFFFFFF"
+	$"39374F4F34349F9F39343434394F34343434393737374F9F9F9F9FDFFFFFFFFF"
+	$"393737374F9F9F393434343439374F4F343439373737379F9F9FDFDFFFFFFFFF"
+	$"39373737379F394F34343434393737374F9F39393737379F9FDF9FDFFFFFFFFF"
+	$"39393737379F39374F4F343439373737379F39373939379FDF9F9FDFFFFFFFFF"
+	$"FFFF3939379F393737374F9F39393737379F3937373739DF9F9F9FDFFFFFFFFF"
+	$"FFFFFFFF39DF39373737379F9F9F3939379F393737374F9F9F9F9FDF10FFFFFF"
+	$"FFFFFFFFFFFF39393737379F9FDF101039DF39373737379F9F9FDFDF101010FF"
+	$"FFFFFFFFFFFFFFFF3939379FDF1010FFFFFF39393737379F9FDF9FDF10101010"
+	$"FFFFFFFFFFFFFFFFFFFF39DF1010FFFFFFFF39373939379FDF9F9FDF10101010"
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF3937373739DF9F9F9FDF101010FF"
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF393737374F9F9F9F9FDF1010FFFF"
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF39373737379F9F9FDF1010FFFFFF"
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF39393737379F9FDF1010FFFFFFFF"
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF3939379FDF1010FFFFFFFFFF"
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF39DF1010FFFFFFFFFFFF"
+};
+
+resource mini_icon array {
+	$"FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF"
+	$"FFFFFFFFFFFFFFFF000000FFFFFFFFFF"
+	$"FFFFFFFFFFFFFFFFFFFF00FF000000FF"
+	$"FFFFFFFFFFFFFFFFFF00FFFFFFFF00FF"
+	$"FFFFFFFFFFFFFFFF000000FFFF00FFFF"
+	$"FFFFFFFF3939FFFFFFFFFFFF000000FF"
+	$"FFFFFF3934343939FFFFFFFFFFFFFFFF"
+	$"FFFF3934343434343939FFFFFFFFFFFF"
+	$"FF393434343434349FDFFFFFFFFFFFFF"
+	$"394F34343434349F9FDF10FFFFFFFFFF"
+	$"39374F4F34349F9F9FDF1010FFFFFFFF"
+	$"393737374F9F9F9F9FDF1010FFFFFFFF"
+	$"39373737379F9F9FDF1010FFFFFFFFFF"
+	$"39393737379F9FDF1010FFFFFFFFFFFF"
+	$"FFFF3939379FDF1010FFFFFFFFFFFFFF"
+	$"FFFFFFFF39DF1010FFFFFFFFFFFFFFFF"
+};

src/add-ons/screen_savers/glife/GLifeConfig.cpp

@@ -0,0 +1,110 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+
+
+#include <stdio.h>
+#include <Slider.h>
+#include <StringView.h>
+#include <View.h>
+
+#include "GLifeState.hpp"
+#include "GLifeConfig.hpp"
+
+
+// ------------------------------------------------------
+//  GLifeConfig Class Constructor Definition
+GLifeConfig::GLifeConfig( BRect rFrame, GLifeState* pglsState )
+	:	BView( rFrame, "", B_FOLLOW_NONE, B_WILL_DRAW ),
+		m_pglsState( pglsState )
+{
+	// Static Labels
+	AddChild( new BStringView( BRect(10, 0, 240, 12), B_EMPTY_STRING,
+							   "Open GL \"Game of Life\" Screen Saver" ) );
+	AddChild( new BStringView( BRect(16, 14, 240, 26), B_EMPTY_STRING,
+							   "by Aaron Hill" ) );
+
+	// Sliders
+	m_pbsGridWidth = new BSlider( BRect(10, 34, 234, 84), "GridWidth",
+								  "Width of Grid : ",
+								  new BMessage( e_midGridWidth ),
+								  10, 100, B_BLOCK_THUMB );
+	m_pbsGridWidth->SetHashMarks( B_HASH_MARKS_BOTTOM );
+	m_pbsGridWidth->SetLimitLabels( "10", "100" );
+	m_pbsGridWidth->SetValue( pglsState->GridWidth() );
+	m_pbsGridWidth->SetHashMarkCount( 10 );
+	AddChild( m_pbsGridWidth );
+
+	m_pbsGridHeight = new BSlider( BRect(10, 86, 234, 136), "GridHeight",
+								   "Height of Grid : ",
+								   new BMessage( e_midGridHeight ),
+								   10, 100, B_BLOCK_THUMB );
+	m_pbsGridHeight->SetHashMarks( B_HASH_MARKS_BOTTOM );
+	m_pbsGridHeight->SetLimitLabels( "10", "100" );
+	m_pbsGridHeight->SetValue( pglsState->GridHeight() );
+	m_pbsGridHeight->SetHashMarkCount( 10 );
+	AddChild( m_pbsGridHeight );
+
+	m_pbsBorder = new BSlider( BRect(10, 138, 234, 188), "Border",
+							   "Overlap Border : ",
+							   new BMessage( e_midBorder ),
+							   0, 10, B_BLOCK_THUMB );
+	m_pbsBorder->SetHashMarks( B_HASH_MARKS_BOTTOM );
+	m_pbsBorder->SetLimitLabels( "0", "10" );
+	m_pbsBorder->SetValue( pglsState->Border() );
+	m_pbsBorder->SetHashMarkCount( 11 );
+	AddChild( m_pbsBorder );
+}
+
+// ------------------------------------------------------
+//  GLifeConfig Class AttachedToWindow Definition
+void GLifeConfig::AttachedToWindow( void )
+{
+	SetViewColor( ui_color( B_PANEL_BACKGROUND_COLOR ) );
+	
+	m_pbsGridWidth->SetTarget( this );
+	m_pbsGridHeight->SetTarget( this );
+	m_pbsBorder->SetTarget( this );
+
+#ifdef _USE_ASYNCHRONOUS
+	
+	m_uiWindowFlags = Window()->Flags();
+	Window()->SetFlags( m_uiWindowFlags | B_ASYNCHRONOUS_CONTROLS );
+
+#endif
+}
+
+// ------------------------------------------------------
+//  GLifeConfig Class MessageReceived Definition
+void GLifeConfig::MessageReceived( BMessage* pbmMessage )
+{
+	char	szNewLabel[64];
+	int32	iValue;
+	
+	switch( pbmMessage->what )
+	{
+	case e_midGridWidth:
+		m_pglsState->GridWidth() = ( iValue = m_pbsGridWidth->Value() );
+		sprintf( szNewLabel, "Width of Grid : %li", iValue );
+		m_pbsGridWidth->SetLabel( szNewLabel );
+		break;
+	case e_midGridHeight:
+		m_pglsState->GridHeight() = ( iValue = m_pbsGridHeight->Value() );
+		sprintf( szNewLabel, "Height of Grid : %li", iValue );
+		m_pbsGridHeight->SetLabel( szNewLabel );
+		break;
+	case e_midBorder:
+		m_pglsState->Border() = ( iValue = m_pbsBorder->Value() );
+		sprintf( szNewLabel, "Overlap Border : %li", iValue );
+		m_pbsBorder->SetLabel( szNewLabel );
+		break;
+		
+	default:
+		BView::MessageReceived( pbmMessage );
+		break;
+	}
+}

src/add-ons/screen_savers/glife/GLifeConfig.hpp

@@ -0,0 +1,45 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+#ifndef _GLIFE_GLIFECONFIG_HPP
+#define _GLIFE_GLIFECONFIG_HPP
+
+
+#include <Slider.h>
+#include <View.h>
+
+#include "GLifeState.hpp"
+
+
+// Message IDs
+enum {
+	e_midGridWidth		= 'grdw',
+	e_midGridHeight		= 'grdh',
+	e_midBorder			= 'bord'
+};
+
+
+// GLifeConfig Class Declaration
+class GLifeConfig : public BView
+{
+private:
+	GLifeState*	m_pglsState;
+	
+	uint32		m_uiWindowFlags;
+	
+	BSlider*	m_pbsGridWidth;
+	BSlider*	m_pbsGridHeight;
+	BSlider*	m_pbsBorder;
+	
+public:
+				GLifeConfig( BRect, GLifeState* );
+	
+	void		AttachedToWindow( void );
+	void		MessageReceived( BMessage* );
+};
+
+#endif /* _GLIFE_GLIFECONFIG_HPP */

src/add-ons/screen_savers/glife/GLifeGrid.cpp

@@ -0,0 +1,86 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+
+
+#include <math.h>
+#include <stdlib.h>
+#include <SupportDefs.h>
+
+#include "GLifeGrid.hpp"
+
+
+// ------------------------------------------------------
+//  GLifeGrid Class Neighbors Definition
+inline int32 GLifeGrid::Neighbors( int32 iRow, int32 iColumn )
+{
+	return ( Occupied( iRow - 1, iColumn - 1 ) ? 1 : 0 ) + 
+		   ( Occupied( iRow - 1, iColumn     ) ? 1 : 0 ) + 
+		   ( Occupied( iRow - 1, iColumn + 1 ) ? 1 : 0 ) +
+		   ( Occupied( iRow    , iColumn - 1 ) ? 1 : 0 ) + 
+		   ( Occupied( iRow    , iColumn + 1 ) ? 1 : 0 ) + 
+		   ( Occupied( iRow + 1, iColumn - 1 ) ? 1 : 0 ) + 
+		   ( Occupied( iRow + 1, iColumn     ) ? 1 : 0 ) + 
+		   ( Occupied( iRow + 1, iColumn + 1 ) ? 1 : 0 );
+}
+
+// ------------------------------------------------------
+//  GLifeGrid Class Constructor Definition
+GLifeGrid::GLifeGrid( int32 iWidth, int32 iHeight )
+	:	m_iWidth( iWidth ), m_iHeight( iHeight )
+{
+	m_pbGrid = new bool[iWidth * iHeight];	
+	
+	// Randomize new grid
+	for( int32 iRow = 0; iRow < iHeight; ++iRow )
+	{
+		for( int32 iColumn = 0; iColumn < iWidth; ++iColumn )
+		{
+			// TODO: Allow for customized randomization level
+			m_pbGrid[ ( iRow * iWidth ) + iColumn ] = ( (rand() % 6 ) == 0 );
+		}
+	}
+}
+
+// ------------------------------------------------------
+//  GLifeGrid Class Destructor Definition
+GLifeGrid::~GLifeGrid( void )
+{
+	delete m_pbGrid;
+}
+
+// ------------------------------------------------------
+//  GLifeGrid Class Generation Definition
+void GLifeGrid::Generation( void )
+{
+	bool* pbTemp = new bool[m_iWidth * m_iHeight];
+
+	for( int32 iRow = 0; iRow < m_iHeight; ++iRow )
+	{
+		for( int32 iColumn = 0; iColumn < m_iWidth; ++iColumn )
+		{
+			int32 iNum = Neighbors( iRow, iColumn );
+			pbTemp[ ( iRow * m_iWidth ) + iColumn ] =
+				( ( iNum == 3 ) ||
+				( Occupied( iRow, iColumn ) && iNum >= 2 && iNum <= 3 ) );
+		}
+	}
+	
+	// Swap grids
+	delete m_pbGrid;
+	m_pbGrid = pbTemp;
+}
+
+// ------------------------------------------------------
+//  GLifeGrid Class Occupied Definition
+bool GLifeGrid::Occupied( int32 iRow, int32 iColumn )
+{
+	int32 iNewRow = ( iRow % m_iHeight ), iNewColumn = ( iColumn % m_iWidth );
+	while( iNewRow < 0 ) iNewRow += m_iHeight;
+	while( iNewColumn < 0 ) iNewColumn += m_iWidth;
+	return m_pbGrid[ ( iNewRow * m_iWidth ) + iNewColumn ];
+}

src/add-ons/screen_savers/glife/GLifeGrid.hpp

@@ -0,0 +1,32 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+#ifndef _GLIFE_GLIFEGRID_HPP
+#define _GLIFE_GLIFEGRID_HPP
+
+
+// GLifeGrid Class Declaration
+class GLifeGrid
+{
+private:
+	bool*		m_pbGrid;
+	int32		m_iWidth;
+	int32		m_iHeight;
+	
+	int32		Neighbors( int32, int32 );
+	
+public:
+	// Constructor & Destructor
+				GLifeGrid( int32, int32 );
+				~GLifeGrid( void );
+	// Public Methods
+	void		Generation( void );
+	// Accessor Methods
+	bool		Occupied( int32, int32 );
+};
+
+#endif /* _GLIFE_GLIFEGRID_HPP */

src/add-ons/screen_savers/glife/GLifeSaver.cpp

@@ -0,0 +1,113 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+ 
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <GLView.h>
+#include <ScreenSaver.h>
+#include <View.h>
+
+#include "GLifeGrid.hpp"
+#include "GLifeState.hpp"
+#include "GLifeConfig.hpp"
+#include "GLifeView.hpp"
+#include "GLifeSaver.hpp"
+
+// ------------------------------------------------------
+//  GLifeSaver Class Constructor Definition
+GLifeSaver::GLifeSaver( BMessage* pbmPrefs, image_id iidImage )
+	:	BScreenSaver( pbmPrefs, iidImage )
+{
+	// Check for preferences
+	if ( !( pbmPrefs->IsEmpty() ) )
+		RestoreState( pbmPrefs );
+	
+	// Seed random number generator
+	srandom( system_time() );
+}
+
+// ------------------------------------------------------
+//  GLifeSaver Class SaveState Definition
+status_t GLifeSaver::SaveState( BMessage* pbmPrefs ) const
+{
+	return m_glsState.SaveState( pbmPrefs );
+}
+
+// ------------------------------------------------------
+//  GLifeSaver Class RestoreState Definition
+void GLifeSaver::RestoreState( BMessage* pbmPrefs )
+{
+	m_glsState.RestoreState( pbmPrefs );
+}
+
+// ------------------------------------------------------
+//  GLifeSaver Class StartConfig Definition
+void GLifeSaver::StartConfig( BView* pbvView )
+{
+	// Setup the "config" class
+	GLifeConfig* pglcConfig = new GLifeConfig( pbvView->Bounds(),
+											   &m_glsState );
+	pbvView->AddChild( pglcConfig );
+}
+
+// ------------------------------------------------------
+//  GLifeSaver Class StartSaver Definition
+status_t GLifeSaver::StartSaver( BView* pbvView, bool bPreview )
+{
+	if ( bPreview )
+	{
+		// We do not use the preview option
+		m_pglvViewport = 0;
+		return B_ERROR;
+	}
+	else
+	{
+		SetTickSize( c_iTickSize );
+		
+		m_pglvViewport = new GLifeView( pbvView->Bounds(),
+										"GLifeView",
+										B_FOLLOW_NONE,
+										BGL_RGB | BGL_DEPTH | BGL_DOUBLE,
+										&m_glsState );
+		pbvView->AddChild( m_pglvViewport );
+		
+		return B_OK;
+	}
+}
+
+// ------------------------------------------------------
+//  GLifeSaver Class StopSaver Definition
+void GLifeSaver::StopSaver( void )
+{
+	if ( m_pglvViewport )
+		m_pglvViewport->EnableDirectMode( false );
+}
+
+// ------------------------------------------------------
+//  GLifeSaver Class DirectConnected Definition
+void GLifeSaver::DirectConnected( direct_buffer_info* pdbiInfo )
+{
+	m_pglvViewport->DirectConnected( pdbiInfo );
+	m_pglvViewport->EnableDirectMode( true );
+}
+
+// ------------------------------------------------------
+//  GLifeSaver Class DirectDraw Definition
+void GLifeSaver::DirectDraw( int32 iFrame )
+{
+	m_pglvViewport->Advance();
+}
+
+// ------------------------------------------------------
+//  Main Instantiation Function
+extern "C" _EXPORT BScreenSaver*
+instantiate_screen_saver( BMessage* pbmPrefs, image_id iidImage )
+{
+	return new GLifeSaver( pbmPrefs, iidImage );
+}

src/add-ons/screen_savers/glife/GLifeSaver.hpp

@@ -0,0 +1,48 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+#ifndef _GLIFE_GLIFESAVER_HPP
+#define _GLIFE_GLIFESAVER_HPP
+
+
+// Required Includes
+// #include <ScreenSaver.h>
+// #include <View.h>
+
+
+// Constants
+const int32 c_iTickSize = 50000;
+
+
+// GLifeSaver Class Declaration
+class GLifeSaver : public BScreenSaver
+{
+private:
+	GLifeState	m_glsState;
+
+	GLifeView*	m_pglvViewport;
+
+public:
+	// Constructor
+				GLifeSaver( BMessage*, image_id );
+
+	// State/Preferences Methods			
+	status_t	SaveState( BMessage* ) const;
+	void		RestoreState( BMessage* );
+	void		StartConfig( BView* );
+
+	// Start/Stop Methods
+	status_t	StartSaver( BView*, bool );
+	void		StopSaver( void );
+
+	// Graphics Methods
+	void		DirectConnected( direct_buffer_info* );
+	void		DirectDraw( int32 );
+};
+
+
+#endif /* _GLIFE_GLIFESAVER_HPP */

src/add-ons/screen_savers/glife/GLifeState.hpp

@@ -0,0 +1,63 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+#ifndef _GLIFE_GLIFESTATE_HPP
+#define _GLIFE_GLIFESTATE_HPP
+
+
+// Constants
+const int32 c_iDefGridWidth = 60;
+const int32 c_iDefGridHeight = 40;
+const int32 c_iDefBorder = 0;
+
+// GLifeState Class Declaration & Definition
+class GLifeState
+{
+private:
+	int32	m_iGridWidth;
+	int32	m_iGridHeight;
+	int32	m_iBorder;
+	
+public:
+	// Constructor
+				GLifeState( void ) : m_iGridWidth(c_iDefGridWidth),
+									 m_iGridHeight(c_iDefGridHeight),
+									 m_iBorder(c_iDefBorder) { };
+
+	// Save/Restore State Methods
+	status_t	SaveState( BMessage* pbmPrefs ) const
+	{
+		// Store current preferences
+		pbmPrefs->AddInt32( "m_iGridWidth", m_iGridWidth );
+		pbmPrefs->AddInt32( "m_iGridHeight", m_iGridHeight );
+		pbmPrefs->AddInt32( "m_iBorder", m_iBorder );
+					
+		return B_OK;
+	};
+	
+	void		RestoreState( BMessage* pbmPrefs )
+	{
+		// Retrieve preferences, substituting defaults
+		if ( pbmPrefs->FindInt32( "m_iGridWidth",
+								  &m_iGridWidth ) != B_OK )
+			m_iGridWidth = c_iDefGridWidth;
+		if ( pbmPrefs->FindInt32( "m_iGridHeight",
+								  &m_iGridHeight ) != B_OK )
+			m_iGridHeight = c_iDefGridHeight;
+		if ( pbmPrefs->FindInt32( "m_iBorder",
+								  &m_iBorder ) != B_OK )
+			m_iBorder = c_iDefBorder;
+	};
+	
+	// Accessor Methods
+	int32&		GridWidth( void ) { return m_iGridWidth; };
+	int32&		GridHeight( void ) { return m_iGridHeight; };
+	int32&		Border( void ) { return m_iBorder; };
+};
+
+
+#endif /* _GLIFE_GLIFESTATE_HPP */

src/add-ons/screen_savers/glife/GLifeView.cpp

@@ -0,0 +1,184 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+
+
+#include <math.h>
+#include <stdlib.h>
+#include <GL/glu.h>
+#include <GLView.h>
+
+#include "GLifeGrid.hpp"
+#include "GLifeState.hpp"
+#include "GLifeView.hpp"
+
+
+// ------------------------------------------------------
+//  GLifeView Class Constructor Definition
+GLifeView::GLifeView(BRect rect, char* name, ulong resizingMode,
+	ulong options, GLifeState* pglsState)
+	:
+	BGLView(rect, name, resizingMode, 0, options),
+	m_pglsState(pglsState)
+{
+	// Setup the grid
+	m_pglgGrid = new GLifeGrid( pglsState->GridWidth(), pglsState->GridHeight() );
+
+	LockGL();
+	
+	glClearDepth( 1.0 );
+	glDepthFunc( GL_LESS );
+	glEnable( GL_DEPTH_TEST );
+	
+	glEnable( GL_BLEND );
+	glBlendFunc( GL_SRC_ALPHA, GL_ONE );
+#if 0	
+	glShadeModel( GL_SMOOTH );
+#endif
+	glMatrixMode( GL_PROJECTION );
+	glLoadIdentity();
+	gluPerspective( 45.0, rect.Width() / rect.Height(), 2.0, 20000.0 );
+	glTranslatef( 0.0, 0.0, -50.0 );
+	glMatrixMode( GL_MODELVIEW );
+	
+	glPolygonMode( GL_FRONT_AND_BACK, GL_FILL );
+	
+	UnlockGL();
+}
+
+// ------------------------------------------------------
+//  GLifeView Class Destructor Definition
+GLifeView::~GLifeView( void )
+{
+	delete m_pglgGrid;
+}
+
+// ------------------------------------------------------
+//  GLifeView Class AttachedToWindow Definition
+void GLifeView::AttachedToWindow( void )
+{
+	LockGL();
+	BGLView::AttachedToWindow();
+	UnlockGL();
+}
+
+// ------------------------------------------------------
+//  GLifeView Class Draw Definition
+void GLifeView::Draw(BRect updateRect)
+{
+	glClear( GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT );
+	
+	// TODO:  Dynamic colors or user-specified coloring
+	GLfloat glfGreen[] = { 0.05, 0.8, 0.15, 1.0 };
+	GLfloat glfOrange[] = { 0.65, 0.3, 0.05, 1.0 };
+	
+	// Border control
+	bool bColor;
+	
+	int32 iWidth = m_pglsState->GridWidth();
+	int32 iHeight = m_pglsState->GridHeight();
+	int32 iBorder = m_pglsState->Border();
+		
+	glPushMatrix();
+	
+	glRotatef( m_glfDelta * 3, 1.0, 0.0, 0.0 );
+	glRotatef( m_glfDelta * 1, 0.0, 0.0, 1.0 );
+	glRotatef( m_glfDelta * 2, 0.0, 1.0, 0.0 );
+	
+	for( int32 iRow = ( 0 - iBorder ); iRow < ( iHeight + iBorder ); ++iRow )
+	{
+		GLfloat glfY = (GLfloat) iRow - ( (GLfloat) iHeight / 2 );
+		
+		for( int32 iColumn = ( 0 - iBorder ); iColumn < ( iWidth + iBorder ); ++iColumn )
+		{
+			GLfloat glfX = (GLfloat) iColumn - ( (GLfloat) iWidth / 2 );
+			
+			bColor = (iColumn < 0) || (iColumn >= iWidth) || (iRow < 0) || (iRow >= iHeight);
+
+			if ( m_pglgGrid->Occupied( iRow, iColumn ) )
+			{
+				glPushMatrix();
+				
+				glTranslatef( glfX, glfY, 0.0 );
+				glScalef( 0.45, 0.45, 0.45 );
+			
+				glBegin( GL_QUAD_STRIP );
+					if (bColor)
+						glColor3f( 0.65, 0.3, 0.05 );
+					else
+						glColor3f( 0.05, 0.8, 0.15 );
+					glMaterialfv(GL_FRONT, GL_DIFFUSE, bColor ? glfOrange : glfGreen);
+					glNormal3f(  0.0,  1.0,  0.0 );
+					glVertex3f(  1.0,  1.0, -1.0 );
+					glVertex3f( -1.0,  1.0, -1.0 );
+					glVertex3f(  1.0,  1.0,  1.0 );
+					glVertex3f( -1.0,  1.0,  1.0 );	
+	
+					glNormal3f(  0.0,  0.0,  1.0 );
+					glVertex3f( -1.0,  1.0,  1.0 );
+					glVertex3f(  1.0,  1.0,  1.0 );
+					glVertex3f( -1.0, -1.0,  1.0 );
+					glVertex3f(  1.0, -1.0,  1.0 );
+			
+					glNormal3f(  0.0, -1.0,  0.0 );
+					glVertex3f( -1.0, -1.0,  1.0 );
+					glVertex3f(  1.0, -1.0,  1.0 );
+					glVertex3f( -1.0, -1.0, -1.0 );
+					glVertex3f(  1.0, -1.0, -1.0 );
+				glEnd();
+			
+				glBegin( GL_QUAD_STRIP);
+					if (bColor)
+						glColor3f( 0.65, 0.3, 0.05 );
+					else
+						glColor3f( 0.05, 0.8, 0.15 );
+					glMaterialfv(GL_FRONT, GL_DIFFUSE, bColor ? glfOrange : glfGreen);
+					glNormal3f( -1.0,  0.0,  0.0 );
+					glVertex3f( -1.0,  1.0,  1.0 );
+					glVertex3f( -1.0, -1.0,  1.0 );
+					glVertex3f( -1.0,  1.0, -1.0 );
+					glVertex3f( -1.0, -1.0, -1.0 );
+				
+					glNormal3f(  0.0,  0.0, -1.0 );
+					glVertex3f( -1.0,  1.0, -1.0 );
+					glVertex3f( -1.0, -1.0, -1.0 );
+					glVertex3f(  1.0,  1.0, -1.0 );
+					glVertex3f(  1.0, -1.0, -1.0 );
+	
+					glNormal3f(  1.0,  0.0,  0.0 );
+					glVertex3f(  1.0,  1.0, -1.0 );
+					glVertex3f(  1.0, -1.0, -1.0 );
+					glVertex3f(  1.0,  1.0,  1.0 );
+					glVertex3f(  1.0, -1.0,  1.0 );
+				glEnd();
+
+				glPopMatrix();
+			}
+		}
+	}
+	
+	glPopMatrix();
+}
+
+// ------------------------------------------------------
+//  GLifeView Class Advance Definition
+void GLifeView::Advance( void )
+{
+	if ( ( ++m_glfDelta ) > 360.0)
+		m_glfDelta -= 360.0;
+	// TODO: Allow for customized intervals
+	if ( ( ++m_iStep ) > 4 )
+	{
+		m_iStep = 0;
+		m_pglgGrid->Generation();
+	}
+	LockGL();
+	BRect location(0,0,0,0);
+	Draw(location);
+	SwapBuffers();
+	UnlockGL();
+}

src/add-ons/screen_savers/glife/GLifeView.hpp

@@ -0,0 +1,36 @@
+/*
+ * Copyright 2012, Haiku, Inc.
+ * Distributed under the terms of the MIT License.
+ *
+ * Authors:
+ * 		Aaron Hill <serac@hillvisions.com>
+ */
+#ifndef _GLIFE_GLIFEVIEW_HPP
+#define _GLIFE_GLIFEVIEW_HPP
+
+
+#include <GLView.h>
+#include "GLifeState.hpp"
+
+
+// GLifeView Class Declaration
+class GLifeView : public BGLView {
+public:
+	// Constructor & Destructor
+						GLifeView( BRect, char*, ulong, ulong, GLifeState* );
+						~GLifeView( void );
+				
+	// Public Methods
+			void		AttachedToWindow( void );
+	virtual	void		Draw(BRect updateRect);
+			void		Advance( void );
+
+private:
+			GLifeState*	m_pglsState;
+			GLifeGrid*	m_pglgGrid;
+
+			GLfloat		m_glfDelta;
+			int32		m_iStep;
+};
+
+#endif /* _GLIFE_GLIFEVIEW_HPP */

src/add-ons/screen_savers/glife/Jamfile

@@ -0,0 +1,36 @@
+SubDir HAIKU_TOP src add-ons screen_savers glife ;
+SubDirSysHdrs $(HAIKU_MESA_HEADERS) ;
+
+SetSubDirSupportedPlatformsBeOSCompatible ;
+
+# For GCC2
+if $(HAIKU_GCC_VERSION[1]) < 3 {
+    SubDirC++Flags --no-warnings ;
+}
+
+UsePrivateHeaders screen_saver ;
+	# For BuildScreenSaverDefaultSettingsView
+
+local sources =
+	GLifeSaver.cpp
+	GLifeView.cpp
+	GLifeGrid.cpp
+	GLifeConfig.cpp
+;
+
+Includes [ FGristFiles $(sources) ] : $(HAIKU_MESA_HEADERS_DEPENDENCY) ;
+    # Dependency needed to trigger downloading/unzipping the package before
+    # compiling the files.
+
+AddResources GLife : GLife.rdef ;
+
+ScreenSaver GLife :
+	$(sources) : 
+	be screensaver GL $(HAIKU_LOCALE_LIBS) $(TARGET_LIBSUPC++)
+;
+
+DoCatalogs GLife :
+	x-vnd.Haiku-GLifeScreensaver
+	:
+	$(sources)
+;