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fpc/packages/opengl/linux/glut.pp
peter 000049f35b * new bounce demo
2000-10-01 22:17:58 +00:00

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{
$Id$
Translation of the Mesa GLUT headers for FreePascal
Linux Version, Copyright (C) 1999 Sebastian Guenther
Mesa 3-D graphics library
Version: 3.0
Copyright (C) 1995-1998 Brian Paul
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public
License as published by the Free Software Foundation; either
version 2 of the License, or (at your option) any later version.
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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with this library; if not, write to the Free
Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
}
{$MODE delphi}
unit GLUT;
interface
{$MACRO ON}
{$IFDEF Linux}
{$DEFINE gldecl := cdecl;}
{$DEFINE extdecl := cdecl;}
uses GL;
{$ELSE}
{$MESSAGE Unsupported platform.}
{$ENDIF}
function InitGLUTFromLibrary(libname: PChar): Boolean;
// determines automatically which library to use:
function InitGLUT: Boolean;
var
GLUTDumpUnresolvedFunctions,
GLUTInitialized: Boolean;
const
// Display mode bit masks
GLUT_RGB = 0;
GLUT_RGBA = GLUT_RGB;
GLUT_INDEX = 1;
GLUT_SINGLE = 0;
GLUT_DOUBLE = 2;
GLUT_ACCUM = 4;
GLUT_ALPHA = 8;
GLUT_DEPTH = 16;
GLUT_STENCIL = 32;
GLUT_MULTISAMPLE = 128;
GLUT_STEREO = 256;
GLUT_LUMINANCE = 512;
// Mouse buttons
GLUT_LEFT_BUTTON = 0;
GLUT_MIDDLE_BUTTON = 1;
GLUT_RIGHT_BUTTON = 2;
// Mouse button state
GLUT_DOWN = 0;
GLUT_UP = 1;
// Keys ###
// Enter / exit state
GLUT_LEFT = 0;
GLUT_ENTERED = 1;
// Menu usage state
GLUT_MENU_NOT_IN_USE = 0;
GLUT_MENU_IN_USE = 1;
// Visibility state
GLUT_NOT_VISIBLE = 0;
GLUT_VISIBLE = 1;
// Window status state
GLUT_HIDDEN = 0;
GLUT_FULLY_RETAINED = 1;
GLUT_PARTIALLY_RETAINED = 2;
GLUT_FULLY_COVERED = 3;
// Color index component selection values
GLUT_RED = 0;
GLUT_GREEN = 1;
GLUT_BLUE = 2;
// Layers for use
GLUT_NORMAL = 0;
GLUT_OVERLAY = 1;
// Bitmap stuff###
// glutGet parameters
GLUT_WINDOW_X = 100;
GLUT_WINDOW_Y = 101;
GLUT_WINDOW_WIDTH = 102;
GLUT_WINDOW_HEIGHT = 103;
GLUT_WINDOW_BUFFER_SIZE = 104;
GLUT_WINDOW_STENCIL_SIZE = 105;
GLUT_WINDOW_DEPTH_SIZE = 106;
GLUT_WINDOW_RED_SIZE = 107;
GLUT_WINDOW_GREEN_SIZE = 108;
GLUT_WINDOW_BLUE_SIZE = 109;
GLUT_WINDOW_ALPHA_SIZE = 110;
GLUT_WINDOW_ACCUM_RED_SIZE = 111;
GLUT_WINDOW_ACCUM_GREEN_SIZE = 112;
GLUT_WINDOW_ACCUM_BLUE_SIZE = 113;
GLUT_WINDOW_ACCUM_ALPHA_SIZE = 114;
GLUT_WINDOW_DOUBLEBUFFER = 115;
GLUT_WINDOW_RGBA = 116;
GLUT_WINDOW_PARENT = 117;
GLUT_WINDOW_NUM_CHILDREN = 118;
GLUT_WINDOW_COLORMAP_SIZE = 119;
GLUT_WINDOW_NUM_SAMPLES = 120;
GLUT_WINDOW_STEREO = 121;
GLUT_WINDOW_CURSOR = 122;
GLUT_SCREEN_WIDTH = 200;
GLUT_SCREEN_HEIGHT = 201;
GLUT_SCREEN_WIDTH_MM = 202;
GLUT_SCREEN_HEIGHT_MM = 203;
GLUT_MENU_NUM_ITEMS = 300;
GLUT_DISPLAY_MODE_POSSIBLE = 400;
GLUT_INIT_WINDOW_X = 500;
GLUT_INIT_WINDOW_Y = 501;
GLUT_INIT_WINDOW_WIDTH = 502;
GLUT_INIT_WINDOW_HEIGHT = 503;
GLUT_INIT_DISPLAY_MODE = 504;
GLUT_ELAPSED_TIME = 700;
GLUT_WINDOW_FORMAT_ID = 123;
// glutDeviceGet parameters
GLUT_HAS_KEYBOARD = 600;
GLUT_HAS_MOUSE = 601;
GLUT_HAS_SPACEBALL = 602;
GLUT_HAS_DIAL_AND_BUTTON_BOX = 603;
GLUT_HAS_TABLET = 604;
GLUT_NUM_MOUSE_BUTTONS = 605;
GLUT_NUM_SPACEBALL_BUTTONS = 606;
GLUT_NUM_BUTTON_BOX_BUTTONS = 607;
GLUT_NUM_DIALS = 608;
GLUT_NUM_TABLET_BUTTONS = 609;
GLUT_DEVICE_IGNORE_KEY_REPEAT = 610;
GLUT_DEVICE_KEY_REPEAT = 611;
GLUT_HAS_JOYSTICK = 612;
GLUT_OWNS_JOYSTICK = 613;
GLUT_JOYSTICK_BUTTONS = 614;
GLUT_JOYSTICK_AXES = 615;
GLUT_JOYSTICK_POLL_RATE = 616;
// glutLayerGet parameters
GLUT_OVERLAY_POSSIBLE = 800;
GLUT_LAYER_IN_USE = 801;
GLUT_HAS_OVERLAY = 802;
GLUT_TRANSPARENT_INDEX = 803;
GLUT_NORMAL_DAMAGED = 804;
GLUT_OVERLAY_DAMAGED = 805;
// glutVideoResizeGet parameters
GLUT_VIDEO_RESIZE_POSSIBLE = 900;
GLUT_VIDEO_RESIZE_IN_USE = 901;
GLUT_VIDEO_RESIZE_X_DELTA = 902;
GLUT_VIDEO_RESIZE_Y_DELTA = 903;
GLUT_VIDEO_RESIZE_WIDTH_DELTA = 904;
GLUT_VIDEO_RESIZE_HEIGHT_DELTA= 905;
GLUT_VIDEO_RESIZE_X = 906;
GLUT_VIDEO_RESIZE_Y = 907;
GLUT_VIDEO_RESIZE_WIDTH = 908;
GLUT_VIDEO_RESIZE_HEIGHT = 909;
// glutGetModifiers return mask
GLUT_ACTIVE_SHIFT = 1;
GLUT_ACTIVE_CTRL = 2;
GLUT_ACTIVE_ALT = 4;
// Cursor stuff ###
// GLUT window callback sub-API
type
TGlutDisplayFunc = procedure; extdecl
TGlutReshapeFunc = procedure(width, height: Integer); extdecl
TGlutTimerFunc = procedure(value: Integer); extdecl
TGlutKeyboardFunc = procedure(key: char;x,y:Integer); extdecl
TGlutIdleFunc = procedure; extdecl
TGlutVisibilityFunc = procedure(state:Integer); extdecl
// GLUT game mode sub-API
{$ifdef GLUT_GAME}
// glutGameModeGet
const
GLUT_GAME_MODE_ACTIVE = 0;
GLUT_GAME_MODE_POSSIBLE = 1;
GLUT_GAME_MODE_WIDTH = 2;
GLUT_GAME_MODE_HEIGHT = 3;
GLUT_GAME_MODE_PIXEL_DEPTH = 4;
GLUT_GAME_MODE_REFRESH_RATE = 5;
GLUT_GAME_MODE_DISPLAY_CHANGED= 6;
{$endif GLUT_GAME}
var
// GLUT initialization sub-API
glutInit: procedure(argcp: PInteger; argv: PPChar); cdecl;
glutInitDisplayMode: procedure(mode: LongWord); cdecl;
glutInitDisplayString: procedure(AString: PChar); cdecl;
glutInitWindowPosition: procedure(x, y: Integer); cdecl;
glutInitWindowSize: procedure(width, height: Integer); cdecl;
glutMainLoop: procedure; cdecl;
// GLUT window sub-API
glutCreateWindow: function(title: PChar): Integer; cdecl;
glutCreateSubWindow: function(win, x, y, width, height: Integer): Integer; cdecl;
glutDestroyWindow: procedure(win: Integer); cdecl;
glutPostRedisplay: procedure; cdecl;
glutPostWindowRedisplay: procedure(win: Integer); cdecl;
glutSwapBuffers: procedure; cdecl;
glutGetWindow: function: Integer; cdecl;
glutSetWindow: procedure(win: Integer); cdecl;
glutSetWindowTitle: procedure(title: PChar); cdecl;
glutSetIconTitle: procedure(title: PChar); cdecl;
glutPositionWindow: procedure(x, y: Integer); cdecl;
glutReshapeWindow: procedure(width, height: Integer); cdecl;
glutPopWindow: procedure; cdecl;
glutPushWindow: procedure; cdecl;
glutIconifyWindow: procedure; cdecl;
glutShowWindow: procedure; cdecl;
glutHideWindow: procedure; cdecl;
glutFullScreen: procedure; cdecl;
glutSetCursor: procedure(cursor: Integer); cdecl;
glutWarpPointer: procedure(x, y: Integer); cdecl;
//overlays ###
//menus ###
// GLUT window callback sub-API
glutDisplayFunc: procedure(func: TGlutDisplayFunc); cdecl;
glutReshapeFunc: procedure(func: TGlutReshapeFunc); cdecl;
glutTimerFunc: procedure(millis: LongWord; func: TGlutTimerFunc; value: longint); cdecl;
glutKeyboardFunc : procedure(func: TGlutKeyboardFunc); cdecl;
glutIdleFunc : procedure(func: TGlutIdleFunc); cdecl;
glutVisibilityFunc : procedure(func: TGlutVisibilityFunc); cdecl;
// GLUTAPI void APIENTRY glutDisplayFunc(void (GLUTCALLBACK * func)(void));
// GLUTAPI void APIENTRY glutReshapeFunc(void (GLUTCALLBACK * func)(int width, int height));
// GLUTAPI void APIENTRY glutKeyboardFunc(void (GLUTCALLBACK * func)(unsigned char key, int x, int y));
// GLUTAPI void APIENTRY glutMouseFunc(void (GLUTCALLBACK * func)(int button, int state, int x, int y));
// GLUTAPI void APIENTRY glutMotionFunc(void (GLUTCALLBACK * func)(int x, int y));
// GLUTAPI void APIENTRY glutPassiveMotionFunc(void (GLUTCALLBACK * func)(int x, int y));
// GLUTAPI void APIENTRY glutEntryFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutVisibilityFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutIdleFunc(void (GLUTCALLBACK * func)(void));
// GLUTAPI void APIENTRY glutTimerFunc(unsigned int millis, void (GLUTCALLBACK * func)(int value), int value);
// GLUTAPI void APIENTRY glutMenuStateFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutSpecialFunc(void (GLUTCALLBACK * func)(int key, int x, int y));
// GLUTAPI void APIENTRY glutSpaceballMotionFunc(void (GLUTCALLBACK * func)(int x, int y, int z));
// GLUTAPI void APIENTRY glutSpaceballRotateFunc(void (GLUTCALLBACK * func)(int x, int y, int z));
// GLUTAPI void APIENTRY glutSpaceballButtonFunc(void (GLUTCALLBACK * func)(int button, int state));
// GLUTAPI void APIENTRY glutButtonBoxFunc(void (GLUTCALLBACK * func)(int button, int state));
// GLUTAPI void APIENTRY glutDialsFunc(void (GLUTCALLBACK * func)(int dial, int value));
// GLUTAPI void APIENTRY glutTabletMotionFunc(void (GLUTCALLBACK * func)(int x, int y));
// GLUTAPI void APIENTRY glutTabletButtonFunc(void (GLUTCALLBACK * func)(int button, int state, int x, int y));
// GLUTAPI void APIENTRY glutMenuStatusFunc(void (GLUTCALLBACK * func)(int status, int x, int y));
// GLUTAPI void APIENTRY glutOverlayDisplayFunc(void (GLUTCALLBACK * func)(void));
// GLUTAPI void APIENTRY glutWindowStatusFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutKeyboardUpFunc(void (GLUTCALLBACK * func)(unsigned char key, int x, int y));
// GLUTAPI void APIENTRY glutSpecialUpFunc(void (GLUTCALLBACK * func)(int key, int x, int y));
// GLUTAPI void APIENTRY glutJoystickFunc(void (GLUTCALLBACK * func)(unsigned int buttonMask, int x, int y, int z), int pollInterval)
// GLUT color index sub-API
glutSetColor: procedure(index: Integer; red, green, blue: Single); cdecl;
glutGetColor: function(ndx, component: Integer): Single; cdecl;
glutCopyColormap: procedure(win: Integer); cdecl;
// GLUT state retrieval sub-API
glutGet: function(AType: GLEnum): Integer; cdecl;
glutDeviceGet: function(AType: GLEnum): Integer; cdecl;
glutExtensionSupported: function(name: PChar): Integer; cdecl;
glutGetModifiers: function: Integer; cdecl;
glutLayerGet: function(AType: GLEnum): Integer; cdecl;
// fonts ###
// pre-built models ###
// video resize ###
// debugging ###
// device control ###
// GLUT game mode sub-API
{$ifdef GLUT_GAME}
glutGameModeString: procedure(AString: PChar); cdecl;
glutEnterGameMode: function: Integer; cdecl;
glutLeaveGameMode: procedure; cdecl;
glutGameModeGet: function(mode: GLEnum): Integer; cdecl;
{$endif GLUT_GAME}
implementation
{$LINKLIB Xmu}
function dlopen(AFile: PChar; mode: LongInt): Pointer; external 'dl';
function dlclose(handle: Pointer): LongInt; external 'dl';
function dlsym(handle: Pointer; name: PChar): Pointer; external 'dl';
function LoadLibrary(name: PChar): Pointer;
begin
Result := dlopen(name, $101 {RTLD_GLOBAL or RTLD_LAZY});
end;
function GetProc(handle: Pointer; name: PChar): Pointer;
begin
Result := dlsym(handle, name);
if (Result = nil) and GLUTDumpUnresolvedFunctions then
WriteLn('Unresolved: ', name);
end;
var
libGLUT: Pointer;
function InitGLUTFromLibrary(libname: PChar): Boolean;
begin
Result := False;
libGLUT := LoadLibrary(libname);
if not Assigned(libGLUT) then exit;
// GLUT initialization sub-API
glutInit := GetProc(libglut, 'glutInit');
glutInitDisplayMode := GetProc(libglut, 'glutInitDisplayMode');
glutInitDisplayString := GetProc(libglut, 'glutInitDisplayString');
glutInitWindowPosition := GetProc(libglut, 'glutInitWindowPosition');
glutInitWindowSize := GetProc(libglut, 'glutInitWindowSize');
glutMainLoop := GetProc(libglut, 'glutMainLoop');
// GLUT window sub-API
glutCreateWindow := GetProc(libglut, 'glutCreateWindow');
glutCreateSubWindow := GetProc(libglut, 'glutCreateSubWindow');
glutDestroyWindow := GetProc(libglut, 'glutDestroyWindow');
glutPostRedisplay := GetProc(libglut, 'glutPostRedisplay');
glutPostWindowRedisplay := GetProc(libglut, 'glutPostWindowRedisplay');
glutSwapBuffers := GetProc(libglut, 'glutSwapBuffers');
glutGetWindow := GetProc(libglut, 'glutGetWindow');
glutSetWindow := GetProc(libglut, 'glutSetWindow');
glutSetWindowTitle := GetProc(libglut, 'glutSetWindowTitle');
glutSetIconTitle := GetProc(libglut, 'glutSetIconTitle');
glutPositionWindow := GetProc(libglut, 'glutPositionWindow');
glutReshapeWindow := GetProc(libglut, 'glutReshapeWindow');
glutPopWindow := GetProc(libglut, 'glutPopWindow');
glutPushWindow := GetProc(libglut, 'glutPushWindow');
glutIconifyWindow := GetProc(libglut, 'glutIconifyWindow');
glutShowWindow := GetProc(libglut, 'glutShowWindow');
glutHideWindow := GetProc(libglut, 'glutHideWindow');
glutFullScreen := GetProc(libglut, 'glutFullScreen');
glutSetCursor := GetProc(libglut, 'glutSetCursor');
glutWarpPointer := GetProc(libglut, 'glutWarpPointer');
//overlays ###
//menus ###
// GLUT window callback sub-API
glutDisplayFunc := GetProc(libglut, 'glutDisplayFunc');
glutReshapeFunc := GetProc(libglut, 'glutReshapeFunc');
glutTimerFunc := GetProc(libglut, 'glutTimerFunc');
glutKeyboardFunc := GetProc(libglut, 'glutKeyboardFunc');
glutIdleFunc := GetProc(libglut, 'glutIdleFunc');
glutVisibilityFunc := GetProc(libglut, 'glutVisibilityFunc');
// GLUTAPI void APIENTRY glutDisplayFunc(void (GLUTCALLBACK * func)(void));
// GLUTAPI void APIENTRY glutReshapeFunc(void (GLUTCALLBACK * func)(int width, int height));
// GLUTAPI void APIENTRY glutKeyboardFunc(void (GLUTCALLBACK * func)(unsigned char key, int x, int y));
// GLUTAPI void APIENTRY glutMouseFunc(void (GLUTCALLBACK * func)(int button, int state, int x, int y));
// GLUTAPI void APIENTRY glutMotionFunc(void (GLUTCALLBACK * func)(int x, int y));
// GLUTAPI void APIENTRY glutPassiveMotionFunc(void (GLUTCALLBACK * func)(int x, int y));
// GLUTAPI void APIENTRY glutEntryFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutVisibilityFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutIdleFunc(void (GLUTCALLBACK * func)(void));
// GLUTAPI void APIENTRY glutTimerFunc(unsigned int millis, void (GLUTCALLBACK * func)(int value), int value);
// GLUTAPI void APIENTRY glutMenuStateFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutSpecialFunc(void (GLUTCALLBACK * func)(int key, int x, int y));
// GLUTAPI void APIENTRY glutSpaceballMotionFunc(void (GLUTCALLBACK * func)(int x, int y, int z));
// GLUTAPI void APIENTRY glutSpaceballRotateFunc(void (GLUTCALLBACK * func)(int x, int y, int z));
// GLUTAPI void APIENTRY glutSpaceballButtonFunc(void (GLUTCALLBACK * func)(int button, int state));
// GLUTAPI void APIENTRY glutButtonBoxFunc(void (GLUTCALLBACK * func)(int button, int state));
// GLUTAPI void APIENTRY glutDialsFunc(void (GLUTCALLBACK * func)(int dial, int value));
// GLUTAPI void APIENTRY glutTabletMotionFunc(void (GLUTCALLBACK * func)(int x, int y));
// GLUTAPI void APIENTRY glutTabletButtonFunc(void (GLUTCALLBACK * func)(int button, int state, int x, int y));
// GLUTAPI void APIENTRY glutMenuStatusFunc(void (GLUTCALLBACK * func)(int status, int x, int y));
// GLUTAPI void APIENTRY glutOverlayDisplayFunc(void (GLUTCALLBACK * func)(void));
// GLUTAPI void APIENTRY glutWindowStatusFunc(void (GLUTCALLBACK * func)(int state));
// GLUTAPI void APIENTRY glutKeyboardUpFunc(void (GLUTCALLBACK * func)(unsigned char key, int x, int y));
// GLUTAPI void APIENTRY glutSpecialUpFunc(void (GLUTCALLBACK * func)(int key, int x, int y));
// GLUTAPI void APIENTRY glutJoystickFunc(void (GLUTCALLBACK * func)(unsigned int buttonMask, int x, int y, int z), int pollInterval)
// GLUT color index sub-API
glutSetColor := GetProc(libglut, 'glutSetColor');
glutGetColor := GetProc(libglut, 'glutGetColor');
glutCopyColormap := GetProc(libglut, 'glutCopyColormap');
// GLUT state retrieval sub-API
glutGet := GetProc(libglut, 'glutGet');
glutDeviceGet := GetProc(libglut, 'glutDeviceGet');
glutExtensionSupported := GetProc(libglut, 'glutExtensionSupported');
glutGetModifiers := GetProc(libglut, 'glutGetModifiers');
glutLayerGet := GetProc(libglut, 'glutLayerGet');
// fonts ###
// pre-built models ###
// video resize ###
// debugging ###
// device control ###
// GLUT game mode sub-API
{$ifdef GLUT_GAME}
glutGameModeString := GetProc(libglut, 'glutGameModeString');
glutEnterGameMode := GetProc(libglut, 'glutEnterGameMode');
glutLeaveGameMode := GetProc(libglut, 'glutLeaveGameMode');
glutGameModeGet := GetProc(libglut, 'glutGameModeGet');
{$endif GLUT_GAME}
GLUTInitialized := True;
Result := True;
end;
function InitGLUT: Boolean;
begin
Result := InitGLUTFromLibrary('libglut.so') or
InitGLUTFromLibrary('libglut.so.3');
end;
initialization
InitGLUT;
finalization
if Assigned(libGLUT) then dlClose(libGLUT);
end.
{
$Log$
Revision 1.5 2000-10-01 22:17:59 peter
* new bounce demo
Revision 1.4.2.1 2000/10/01 22:12:28 peter
* new demo
}
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