winsys.cpp File Reference

#include "config.h"
#include "gl_globals.h"
#include "winsys.h"
#include "vs_globals.h"
#include "xml_support.h"
#include "config_xml.h"
#include <assert.h>
#include <sstream>

Go to the source code of this file.

Functions
void	winsys_post_redisplay ()
void	winsys_set_display_func (winsys_display_func_t func)
void	winsys_set_idle_func (winsys_idle_func_t func)
void	winsys_set_reshape_func (winsys_reshape_func_t func)
char	AdjustKeyCtrl (char ch)
static void	glut_keyboard_cb (unsigned char ch, int x, int y)
static void	glut_special_cb (int key, int x, int y)
static void	glut_keyboard_up_cb (unsigned char ch, int x, int y)
static void	glut_special_up_cb (int key, int x, int y)
void	winsys_set_keyboard_func (winsys_keyboard_func_t func)
void	winsys_set_mouse_func (winsys_mouse_func_t func)
void	winsys_set_motion_func (winsys_motion_func_t func)
void	winsys_set_passive_motion_func (winsys_motion_func_t func)
void	winsys_swap_buffers ()
void	winsys_warp_pointer (int x, int y)
void	winsys_init (int *argc, char **argv, char const *window_title, char const *icon_title)
void	winsys_shutdown ()
void	winsys_enable_key_repeat (bool enabled)
void	winsys_show_cursor (bool visible)
void	winsys_process_events ()
void	winsys_atexit (winsys_atexit_func_t func)
void	winsys_exit (int code)

Variables
static winsys_keyboard_func_t	keyboard_func = NULL
static bool	redisplay = false

Function Documentation

char AdjustKeyCtrl

(

char

ch)

Definition at line 616 of file winsys.cpp.

Referenced by glut_keyboard_cb(), and glut_keyboard_up_cb().

{
    if (ch == '\0') {
        ch = '2';
    } else if (ch >= '0' && ch <= '9') {} else if (ch >= 27 && ch <= 31) {
        ch = ch+'0'-24;
    } else if (ch == 127) {
        ch = '8';
    } else if (ch <= 26) {
        ch += 'a'-1;
    }
    return ch;
}

static void glut_keyboard_cb ( unsigned char  ch, int  x, int  y  )

static

Definition at line 631 of file winsys.cpp.

References AdjustKeyCtrl(), VSFileSystem::vs_dprintf(), x, and y.

Referenced by winsys_process_events().

{
    if (keyboard_func) {
        int gm = glutGetModifiers();
        if (gm)
            VSFileSystem::vs_dprintf('3', "Down Modifier %d for char %d %c\n", gm, (int) ch, ch );
        if (gm&GLUT_ACTIVE_CTRL)
            ch = AdjustKeyCtrl( ch );
        (*keyboard_func)(ch, gm, false, x, y);
    }
}

static void glut_keyboard_up_cb ( unsigned char  ch, int  x, int  y  )

static

Definition at line 649 of file winsys.cpp.

References AdjustKeyCtrl(), VSFileSystem::vs_dprintf(), x, and y.

Referenced by winsys_process_events().

{
    if (keyboard_func) {
        int gm = glutGetModifiers();
        if (gm)
            VSFileSystem::vs_dprintf('3',"Up Modifier %d for char %d %c\n", gm, (int) ch, ch );
        if (gm&GLUT_ACTIVE_CTRL)
            ch = AdjustKeyCtrl( ch );
        (*keyboard_func)(ch, gm, true, x, y);
    }
}

static void glut_special_cb ( int  key, int  x, int  y  )

static

Definition at line 643 of file winsys.cpp.

References x, and y.

Referenced by winsys_process_events().

{
    if (keyboard_func)
        (*keyboard_func)(key+128, glutGetModifiers(), false, x, y);
}

static void glut_special_up_cb ( int  key, int  x, int  y  )

static

Definition at line 661 of file winsys.cpp.

References x, and y.

Referenced by winsys_process_events().

{
    if (keyboard_func)
        (*keyboard_func)(key+128, glutGetModifiers(), true, x, y);
}

void winsys_atexit

(

winsys_atexit_func_t

func)

Sets the function to be called when program ends. Note that this function should only be called once.

Author

jfpatry

Date

Created: 2000-10-20

Modified: 2000-10-20

Definition at line 867 of file winsys.cpp.

References VSFileSystem::vs_fprintf().

{
    static bool called = false;
    if (called)
        VSFileSystem::vs_fprintf( stderr, "winsys_atexit called twice\n" );
    called = true;

    //atexit(func);
}

void winsys_enable_key_repeat

(

bool

enabled)

Enables/disables key repeat messages from being generated

Returns

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 817 of file winsys.cpp.

Referenced by GFXInit().

{
    glutIgnoreKeyRepeat( !enabled );
}

void winsys_exit

(

int

code)

Exits the program

Author

jfpatry

Date

Created: 2000-10-20

Modified: 2000-10-20

Definition at line 884 of file winsys.cpp.

References winsys_shutdown().

Referenced by bootstrap_main_loop(), Mission::DirectorBenchmark(), main(), GameMenu::processExitGameButton(), and VSExit().

{
    winsys_shutdown();
    exit( code );
}

void winsys_init	(	int *	argc,
		char **	argv,
		char const *	window_title,
		char const *	icon_title
	)

Initializes the OpenGL rendering context, and creates a window (or sets up fullscreen mode if selected)

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 747 of file winsys.cpp.

References gl_options_t::color_depth, gl_options_t::fullscreen, g_game, VegaConfig::getVariable(), gl_options, height, XMLSupport::parse_bool(), XMLSupport::parse_int(), vs_config, VSFileSystem::vs_dprintf(), VSFileSystem::vs_fprintf(), width, game_data_t::x_resolution, and game_data_t::y_resolution.

Referenced by GFXInit().

{
    int width, height;
    int glutWindow;
    g_game.x_resolution    = XMLSupport::parse_int( vs_config->getVariable( "graphics", "x_resolution", "1024" ) );
    g_game.y_resolution    = XMLSupport::parse_int( vs_config->getVariable( "graphics", "y_resolution", "768" ) );
    gl_options.fullscreen  = XMLSupport::parse_bool( vs_config->getVariable( "graphics", "fullscreen", "false" ) );
    gl_options.color_depth = XMLSupport::parse_int( vs_config->getVariable( "graphics", "colordepth", "32" ) );
    glutInit( argc, argv );
    static bool get_stencil = XMLSupport::parse_bool( vs_config->getVariable( "graphics", "glut_stencil", "true" ) );
    if (get_stencil) {
#ifdef __APPLE__
        if ( !(glutInitDisplayMode( GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE|GLUT_STENCIL ), 1) )
            glutInitDisplayMode( GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE );
#else
        glutInitDisplayMode( GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE|GLUT_STENCIL );
#endif
    } else {
        glutInitDisplayMode( GLUT_RGBA|GLUT_DEPTH|GLUT_DOUBLE );
    }
    char str[1024];
    sprintf( str, "%dx%d:%d@60", g_game.x_resolution, g_game.y_resolution, gl_options.color_depth );
    glutGameModeString( str );
    VSFileSystem::vs_dprintf('3', "Game Mode Params %dx%d at depth %d @ %d Hz\n", glutGameModeGet( GLUT_GAME_MODE_WIDTH ),
            glutGameModeGet( GLUT_GAME_MODE_WIDTH ), glutGameModeGet( GLUT_GAME_MODE_PIXEL_DEPTH ),
            glutGameModeGet( GLUT_GAME_MODE_REFRESH_RATE ) );
    /* Create a window */
    if ( gl_options.fullscreen && (glutGameModeGet( GLUT_GAME_MODE_POSSIBLE ) != -1) ) {
        glutInitWindowPosition( 0, 0 );
        glutEnterGameMode();
        VSFileSystem::vs_dprintf('3', "Game Mode Params %dx%d at depth %d @ %d Hz\n", glutGameModeGet(
                    GLUT_GAME_MODE_WIDTH ), glutGameModeGet( GLUT_GAME_MODE_WIDTH ), glutGameModeGet(
                    GLUT_GAME_MODE_PIXEL_DEPTH ), glutGameModeGet( GLUT_GAME_MODE_REFRESH_RATE ) );
    } else {
        /* Set the initial window size */
        glutInitWindowSize( g_game.x_resolution, g_game.y_resolution );

        glutWindow = glutCreateWindow( window_title );
        if (glutWindow == 0) {
            (void) VSFileSystem::vs_fprintf( stderr, "Couldn't create a window.\n" );
            exit( 1 );
        }
    }
}

void winsys_post_redisplay

(

)

Requests that the screen be redrawn

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 575 of file winsys.cpp.

{
    redisplay = true;
}

void winsys_process_events

(

)

Processes and dispatches events. This function never returns.

Returns

No.

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 849 of file winsys.cpp.

References glut_keyboard_cb(), glut_keyboard_up_cb(), glut_special_cb(), and glut_special_up_cb().

Referenced by GFXLoop().

{
    /* Set up keyboard callbacks */
    glutKeyboardFunc( glut_keyboard_cb );
    glutKeyboardUpFunc( glut_keyboard_up_cb );
    glutSpecialFunc( glut_special_cb );
    glutSpecialUpFunc( glut_special_up_cb );

    glutMainLoop();
}

void winsys_set_display_func

(

winsys_display_func_t

func)

Sets the display callback

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 587 of file winsys.cpp.

Referenced by GFXLoop().

{
    glutDisplayFunc( func );
}

void winsys_set_idle_func

(

winsys_idle_func_t

func)

Sets the idle callback

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 599 of file winsys.cpp.

Referenced by GFXLoop().

{
    glutIdleFunc( func );
}

void winsys_set_keyboard_func

(

winsys_keyboard_func_t

func)

Sets the keyboard callback

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 674 of file winsys.cpp.

Referenced by ConsoleKeys::BringConsole(), BaseInterface::InitCallbacks(), RestoreKB(), UniverseUtil::startMenuInterface(), CockpitKeys::TextMessageKey(), and NavComputer::toggleVisibility().

{
    keyboard_func = func;
}

void winsys_set_motion_func

(

winsys_motion_func_t

func)

Sets the mouse motion callback (when a mouse button is pressed)

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 698 of file winsys.cpp.

Referenced by BaseInterface::InitCallbacks(), GameCockpit::NavScreen(), RestoreMouse(), UniverseUtil::startMenuInterface(), EventManager::takeOverEventManagement(), and NavComputer::toggleVisibility().

{
    glutMotionFunc( func );
}

void winsys_set_mouse_func

(

winsys_mouse_func_t

func)

Sets the mouse button-press callback

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 686 of file winsys.cpp.

Referenced by BaseInterface::InitCallbacks(), GameCockpit::NavScreen(), RestoreMouse(), UniverseUtil::startMenuInterface(), EventManager::takeOverEventManagement(), and NavComputer::toggleVisibility().

{
    glutMouseFunc( func );
}

void winsys_set_passive_motion_func

(

winsys_motion_func_t

func)

Sets the mouse motion callback (when no mouse button is pressed)

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 710 of file winsys.cpp.

Referenced by BaseInterface::InitCallbacks(), GameCockpit::NavScreen(), RestoreMouse(), UniverseUtil::startMenuInterface(), EventManager::takeOverEventManagement(), and NavComputer::toggleVisibility().

{
    glutPassiveMotionFunc( func );
}

void winsys_set_reshape_func

(

winsys_reshape_func_t

func)

Sets the reshape callback

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 611 of file winsys.cpp.

Referenced by GFXInit().

{
    glutReshapeFunc( func );
}

void winsys_show_cursor

(

bool

visible)

Shows/hides mouse cursor

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 829 of file winsys.cpp.

Referenced by ConditionalCursorDraw(), and GFXInit().

{
    static bool vis = true;
    if (visible != vis) {
        if (visible)
            glutSetCursor( GLUT_CURSOR_LEFT_ARROW );
        else
            glutSetCursor( GLUT_CURSOR_NONE );
        vis = visible;
    }
}

void winsys_shutdown

(

)

Deallocates resources in preparation for program termination

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 799 of file winsys.cpp.

References gl_options_t::fullscreen, and gl_options.

Referenced by cleanup(), GFXShutdown(), and winsys_exit().

{
    static bool shutdown = false;
    if (!shutdown) {
        shutdown = true;
        if (gl_options.fullscreen)
            glutLeaveGameMode();
    }
}

void winsys_swap_buffers

(

)

Copies the OpenGL back buffer to the front buffer

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 722 of file winsys.cpp.

Referenced by GFXEndScene(), and GFXInit().

{
    glutSwapBuffers();
}

void winsys_warp_pointer	(	int	x,
		int	y
	)

Moves the mouse pointer to (x,y)

Author

jfpatry

Date

Created: 2000-10-19

Modified: 2000-10-19

Definition at line 734 of file winsys.cpp.

Referenced by BaseInterface::Room::Click(), and DealWithWarp().

{
    glutWarpPointer( x, y );
}

Variable Documentation

winsys_keyboard_func_t keyboard_func = NULL

static

Definition at line 564 of file winsys.cpp.

bool redisplay = false

static

Definition at line 566 of file winsys.cpp.