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{
Adaption of the delphi3d.net OpenGL units to FreePascal
Sebastian Guenther (sg@freepascal.org) in 2002
These units are free to use
}
{$MACRO ON}
{$MODE Delphi}
{$IFDEF Windows}
{$DEFINE extdecl := stdcall}
{$ELSE}
{$DEFINE extdecl := cdecl}
{$ENDIF}
{$IFDEF MORPHOS}
{$INLINE ON}
{$DEFINE GLUT_UNIT}
{$ENDIF}
unit Glut;
// Copyright (c) Mark J. Kilgard, 1994, 1995, 1996. */
(* This program is freely distributable without licensing fees and is
provided without guarantee or warrantee expressed or implied. This
program is -not- in the public domain. *)
{******************************************************************************}
{ Converted to Delphi by Tom Nuydens (tom@delphi3d.net) }
{ Contributions by Igor Karpov (glygrik@hotbox.ru) }
{ For the latest updates, visit Delphi3D: http://www.delphi3d.net }
{******************************************************************************}
interface
uses
SysUtils,
{$IFDEF Windows}
Windows, dynlibs,
{$ELSE}
{$IFDEF MORPHOS}
TinyGL,
{$ELSE}
dynlibs,
{$ENDIF}
{$ENDIF}
GL;
type
TGlutVoidCallback = procedure; cdecl;
TGlut1IntCallback = procedure(value: Integer); cdecl;
TGlut2IntCallback = procedure(v1, v2: Integer); cdecl;
TGlut3IntCallback = procedure(v1, v2, v3: Integer); cdecl;
TGlut4IntCallback = procedure(v1, v2, v3, v4: Integer); cdecl;
TGlut1Char2IntCallback = procedure(c: Byte; v1, v2: Integer); cdecl;
TGlut1UInt3IntCallback = procedure(u: Cardinal; v1, v2, v3: Integer); cdecl;
const
GLUT_API_VERSION = 3;
GLUT_XLIB_IMPLEMENTATION = 12;
// Display mode bit masks.
GLUT_RGB = 0;
GLUT_RGBA = GLUT_RGB;
GLUT_INDEX = 1;
GLUT_SINGLE = 0;
GLUT_DOUBLE = 2;
GLUT_ACCUM = 4;
GLUT_ALPHA = 8;
GLUT_DEPTH = 16;
GLUT_STENCIL = 32;
GLUT_MULTISAMPLE = 128;
GLUT_STEREO = 256;
GLUT_LUMINANCE = 512;
// Mouse buttons.
GLUT_LEFT_BUTTON = 0;
GLUT_MIDDLE_BUTTON = 1;
GLUT_RIGHT_BUTTON = 2;
// Mouse button state.
GLUT_DOWN = 0;
GLUT_UP = 1;
// function keys
GLUT_KEY_F1 = 1;
GLUT_KEY_F2 = 2;
GLUT_KEY_F3 = 3;
GLUT_KEY_F4 = 4;
GLUT_KEY_F5 = 5;
GLUT_KEY_F6 = 6;
GLUT_KEY_F7 = 7;
GLUT_KEY_F8 = 8;
GLUT_KEY_F9 = 9;
GLUT_KEY_F10 = 10;
GLUT_KEY_F11 = 11;
GLUT_KEY_F12 = 12;
// directional keys
GLUT_KEY_LEFT = 100;
GLUT_KEY_UP = 101;
GLUT_KEY_RIGHT = 102;
GLUT_KEY_DOWN = 103;
GLUT_KEY_PAGE_UP = 104;
GLUT_KEY_PAGE_DOWN = 105;
GLUT_KEY_HOME = 106;
GLUT_KEY_END = 107;
GLUT_KEY_INSERT = 108;
// Entry/exit state.
GLUT_LEFT = 0;
GLUT_ENTERED = 1;
// Menu usage state.
GLUT_MENU_NOT_IN_USE = 0;
GLUT_MENU_IN_USE = 1;
// Visibility state.
GLUT_NOT_VISIBLE = 0;
GLUT_VISIBLE = 1;
// Window status state.
GLUT_HIDDEN = 0;
GLUT_FULLY_RETAINED = 1;
GLUT_PARTIALLY_RETAINED = 2;
GLUT_FULLY_COVERED = 3;
// Color index component selection values.
GLUT_RED = 0;
GLUT_GREEN = 1;
GLUT_BLUE = 2;
// Layers for use.
GLUT_NORMAL = 0;
GLUT_OVERLAY = 1;
{$ifdef Windows}
// Stroke font constants (use these in GLUT program).
GLUT_STROKE_ROMAN = Pointer(0);
GLUT_STROKE_MONO_ROMAN = Pointer(1);
// Bitmap font constants (use these in GLUT program).
GLUT_BITMAP_9_BY_15 = Pointer(2);
GLUT_BITMAP_8_BY_13 = Pointer(3);
GLUT_BITMAP_TIMES_ROMAN_10 = Pointer(4);
GLUT_BITMAP_TIMES_ROMAN_24 = Pointer(5);
GLUT_BITMAP_HELVETICA_10 = Pointer(6);
GLUT_BITMAP_HELVETICA_12 = Pointer(7);
GLUT_BITMAP_HELVETICA_18 = Pointer(8);
{$else Windows}
var
// Stroke font constants (use these in GLUT program).
GLUT_STROKE_ROMAN : Pointer;
GLUT_STROKE_MONO_ROMAN : Pointer;
// Bitmap font constants (use these in GLUT program).
GLUT_BITMAP_9_BY_15 : Pointer;
GLUT_BITMAP_8_BY_13 : Pointer;
GLUT_BITMAP_TIMES_ROMAN_10 : Pointer;
GLUT_BITMAP_TIMES_ROMAN_24 : Pointer;
GLUT_BITMAP_HELVETICA_10 : Pointer;
GLUT_BITMAP_HELVETICA_12 : Pointer;
GLUT_BITMAP_HELVETICA_18 : Pointer;
const
{$endif Windows}
// 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;
// glutSetCursor parameters.
// Basic arrows.
GLUT_CURSOR_RIGHT_ARROW = 0;
GLUT_CURSOR_LEFT_ARROW = 1;
// Symbolic cursor shapes.
GLUT_CURSOR_INFO = 2;
GLUT_CURSOR_DESTROY = 3;
GLUT_CURSOR_HELP = 4;
GLUT_CURSOR_CYCLE = 5;
GLUT_CURSOR_SPRAY = 6;
GLUT_CURSOR_WAIT = 7;
GLUT_CURSOR_TEXT = 8;
GLUT_CURSOR_CROSSHAIR = 9;
// Directional cursors.
GLUT_CURSOR_UP_DOWN = 10;
GLUT_CURSOR_LEFT_RIGHT = 11;
// Sizing cursors.
GLUT_CURSOR_TOP_SIDE = 12;
GLUT_CURSOR_BOTTOM_SIDE = 13;
GLUT_CURSOR_LEFT_SIDE = 14;
GLUT_CURSOR_RIGHT_SIDE = 15;
GLUT_CURSOR_TOP_LEFT_CORNER = 16;
GLUT_CURSOR_TOP_RIGHT_CORNER = 17;
GLUT_CURSOR_BOTTOM_RIGHT_CORNER = 18;
GLUT_CURSOR_BOTTOM_LEFT_CORNER = 19;
// Inherit from parent window.
GLUT_CURSOR_INHERIT = 100;
// Blank cursor.
GLUT_CURSOR_NONE = 101;
// Fullscreen crosshair (if available).
GLUT_CURSOR_FULL_CROSSHAIR = 102;
// GLUT device control sub-API.
// glutSetKeyRepeat modes.
GLUT_KEY_REPEAT_OFF = 0;
GLUT_KEY_REPEAT_ON = 1;
GLUT_KEY_REPEAT_DEFAULT = 2;
// Joystick button masks.
GLUT_JOYSTICK_BUTTON_A = 1;
GLUT_JOYSTICK_BUTTON_B = 2;
GLUT_JOYSTICK_BUTTON_C = 4;
GLUT_JOYSTICK_BUTTON_D = 8;
// GLUT game mode sub-API.
// glutGameModeGet.
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;
{$IFDEF MORPHOS}
{ MorphOS GL works differently due to different dynamic-library handling on Amiga-like }
{ systems, so its headers are included here. }
{$INCLUDE tinyglh.inc}
{$ELSE MORPHOS}
var
// GLUT initialization sub-API.
glutInit: procedure(argcp: PInteger; argv: PPChar); extdecl;
glutInitDisplayMode: procedure(mode: Cardinal); extdecl;
glutInitDisplayString: procedure(const str: PChar); extdecl;
glutInitWindowPosition: procedure(x, y: Integer); extdecl;
glutInitWindowSize: procedure(width, height: Integer); extdecl;
glutMainLoop: procedure; extdecl;
// GLUT window sub-API.
glutCreateWindow: function(const title: PChar): Integer; extdecl;
glutCreateSubWindow: function(win, x, y, width, height: Integer): Integer; extdecl;
glutDestroyWindow: procedure(win: Integer); extdecl;
glutPostRedisplay: procedure; extdecl;
glutPostWindowRedisplay: procedure(win: Integer); extdecl;
glutSwapBuffers: procedure; extdecl;
glutGetWindow: function: Integer; extdecl;
glutSetWindow: procedure(win: Integer); extdecl;
glutSetWindowTitle: procedure(const title: PChar); extdecl;
glutSetIconTitle: procedure(const title: PChar); extdecl;
glutPositionWindow: procedure(x, y: Integer); extdecl;
glutReshapeWindow: procedure(width, height: Integer); extdecl;
glutPopWindow: procedure; extdecl;
glutPushWindow: procedure; extdecl;
glutIconifyWindow: procedure; extdecl;
glutShowWindow: procedure; extdecl;
glutHideWindow: procedure; extdecl;
glutFullScreen: procedure; extdecl;
glutSetCursor: procedure(cursor: Integer); extdecl;
glutWarpPointer: procedure(x, y: Integer); extdecl;
// GLUT overlay sub-API.
glutEstablishOverlay: procedure; extdecl;
glutRemoveOverlay: procedure; extdecl;
glutUseLayer: procedure(layer: GLenum); extdecl;
glutPostOverlayRedisplay: procedure; extdecl;
glutPostWindowOverlayRedisplay: procedure(win: Integer); extdecl;
glutShowOverlay: procedure; extdecl;
glutHideOverlay: procedure; extdecl;
// GLUT menu sub-API.
glutCreateMenu: function(callback: TGlut1IntCallback): Integer; extdecl;
glutDestroyMenu: procedure(menu: Integer); extdecl;
glutGetMenu: function: Integer; extdecl;
glutSetMenu: procedure(menu: Integer); extdecl;
glutAddMenuEntry: procedure(const caption: PChar; value: Integer); extdecl;
glutAddSubMenu: procedure(const caption: PChar; submenu: Integer); extdecl;
glutChangeToMenuEntry: procedure(item: Integer; const caption: PChar; value: Integer); extdecl;
glutChangeToSubMenu: procedure(item: Integer; const caption: PChar; submenu: Integer); extdecl;
glutRemoveMenuItem: procedure(item: Integer); extdecl;
glutAttachMenu: procedure(button: Integer); extdecl;
glutDetachMenu: procedure(button: Integer); extdecl;
// GLUT window callback sub-API.
glutDisplayFunc: procedure(f: TGlutVoidCallback); extdecl;
glutReshapeFunc: procedure(f: TGlut2IntCallback); extdecl;
glutKeyboardFunc: procedure(f: TGlut1Char2IntCallback); extdecl;
glutMouseFunc: procedure(f: TGlut4IntCallback); extdecl;
glutMotionFunc: procedure(f: TGlut2IntCallback); extdecl;
glutPassiveMotionFunc: procedure(f: TGlut2IntCallback); extdecl;
glutEntryFunc: procedure(f: TGlut1IntCallback); extdecl;
glutVisibilityFunc: procedure(f: TGlut1IntCallback); extdecl;
glutIdleFunc: procedure(f: TGlutVoidCallback); extdecl;
glutTimerFunc: procedure(millis: Cardinal; f: TGlut1IntCallback; value: Integer); extdecl;
glutMenuStateFunc: procedure(f: TGlut1IntCallback); extdecl;
glutSpecialFunc: procedure(f: TGlut3IntCallback); extdecl;
glutSpaceballMotionFunc: procedure(f: TGlut3IntCallback); extdecl;
glutSpaceballRotateFunc: procedure(f: TGlut3IntCallback); extdecl;
glutSpaceballButtonFunc: procedure(f: TGlut2IntCallback); extdecl;
glutButtonBoxFunc: procedure(f: TGlut2IntCallback); extdecl;
glutDialsFunc: procedure(f: TGlut2IntCallback); extdecl;
glutTabletMotionFunc: procedure(f: TGlut2IntCallback); extdecl;
glutTabletButtonFunc: procedure(f: TGlut4IntCallback); extdecl;
glutMenuStatusFunc: procedure(f: TGlut3IntCallback); extdecl;
glutOverlayDisplayFunc: procedure(f:TGlutVoidCallback); extdecl;
glutWindowStatusFunc: procedure(f: TGlut1IntCallback); extdecl;
glutKeyboardUpFunc: procedure(f: TGlut1Char2IntCallback); extdecl;
glutSpecialUpFunc: procedure(f: TGlut3IntCallback); extdecl;
glutJoystickFunc: procedure(f: TGlut1UInt3IntCallback; pollInterval: Integer); extdecl;
// GLUT color index sub-API.
glutSetColor: procedure(cell: Integer; red, green, blue: GLfloat); extdecl;
glutGetColor: function(ndx, component: Integer): GLfloat; extdecl;
glutCopyColormap: procedure(win: Integer); extdecl;
// GLUT state retrieval sub-API.
glutGet: function(t: GLenum): Integer; extdecl;
glutDeviceGet: function(t: GLenum): Integer; extdecl;
// GLUT extension support sub-API
glutExtensionSupported: function(const name: PChar): Integer; extdecl;
glutGetModifiers: function: Integer; extdecl;
glutLayerGet: function(t: GLenum): Integer; extdecl;
// GLUT font sub-API
glutBitmapCharacter: procedure(font : pointer; character: Integer); extdecl;
glutBitmapWidth: function(font : pointer; character: Integer): Integer; extdecl;
glutStrokeCharacter: procedure(font : pointer; character: Integer); extdecl;
glutStrokeWidth: function(font : pointer; character: Integer): Integer; extdecl;
glutBitmapLength: function(font: pointer; const str: PChar): Integer; extdecl;
glutStrokeLength: function(font: pointer; const str: PChar): Integer; extdecl;
// GLUT pre-built models sub-API
glutWireSphere: procedure(radius: GLdouble; slices, stacks: GLint); extdecl;
glutSolidSphere: procedure(radius: GLdouble; slices, stacks: GLint); extdecl;
glutWireCone: procedure(base, height: GLdouble; slices, stacks: GLint); extdecl;
glutSolidCone: procedure(base, height: GLdouble; slices, stacks: GLint); extdecl;
glutWireCube: procedure(size: GLdouble); extdecl;
glutSolidCube: procedure(size: GLdouble); extdecl;
glutWireTorus: procedure(innerRadius, outerRadius: GLdouble; sides, rings: GLint); extdecl;
glutSolidTorus: procedure(innerRadius, outerRadius: GLdouble; sides, rings: GLint); extdecl;
glutWireDodecahedron: procedure; extdecl;
glutSolidDodecahedron: procedure; extdecl;
glutWireTeapot: procedure(size: GLdouble); extdecl;
glutSolidTeapot: procedure(size: GLdouble); extdecl;
glutWireOctahedron: procedure; extdecl;
glutSolidOctahedron: procedure; extdecl;
glutWireTetrahedron: procedure; extdecl;
glutSolidTetrahedron: procedure; extdecl;
glutWireIcosahedron: procedure; extdecl;
glutSolidIcosahedron: procedure; extdecl;
// GLUT video resize sub-API.
glutVideoResizeGet: function(param: GLenum): Integer; extdecl;
glutSetupVideoResizing: procedure; extdecl;
glutStopVideoResizing: procedure; extdecl;
glutVideoResize: procedure(x, y, width, height: Integer); extdecl;
glutVideoPan: procedure(x, y, width, height: Integer); extdecl;
// GLUT debugging sub-API.
glutReportErrors: procedure; extdecl;
// GLUT device control sub-API.
glutIgnoreKeyRepeat: procedure(ignore: Integer); extdecl;
glutSetKeyRepeat: procedure(repeatMode: Integer); extdecl;
glutForceJoystickFunc: procedure; extdecl;
// GLUT game mode sub-API.
//example glutGameModeString('1280x1024:32@75');
glutGameModeString : procedure (const AString : PChar); extdecl;
glutEnterGameMode : function : integer; extdecl;
glutLeaveGameMode : procedure; extdecl;
glutGameModeGet : function (mode : GLenum) : integer; extdecl;
{$ENDIF MORPHOS}
procedure LoadGlut(const dll: String);
procedure UnloadGlut;
implementation
{$IFDEF MORPHOS}
{ MorphOS GL works differently due to different dynamic-library handling on Amiga-like }
{ systems, so its functions are included here. }
{$INCLUDE tinygl.inc}
{$ELSE MORPHOS}
uses FreeGlut;
var
hDLL: TLibHandle;
{$ENDIF MORPHOS}
procedure UnloadGlut;
begin
{$IFDEF MORPHOS}
// MorphOS's GL will closed down by TinyGL unit, nothing is needed here.
{$ELSE MORPHOS}
if (hDLL <> 0) then
FreeLibrary(hDLL);
@glutInit := nil;
@glutInitDisplayMode := nil;
@glutInitDisplayString := nil;
@glutInitWindowPosition := nil;
@glutInitWindowSize := nil;
@glutMainLoop := nil;
@glutCreateWindow := nil;
@glutCreateSubWindow := nil;
@glutDestroyWindow := nil;
@glutPostRedisplay := nil;
@glutPostWindowRedisplay := nil;
@glutSwapBuffers := nil;
@glutGetWindow := nil;
@glutSetWindow := nil;
@glutSetWindowTitle := nil;
@glutSetIconTitle := nil;
@glutPositionWindow := nil;
@glutReshapeWindow := nil;
@glutPopWindow := nil;
@glutPushWindow := nil;
@glutIconifyWindow := nil;
@glutShowWindow := nil;
@glutHideWindow := nil;
@glutFullScreen := nil;
@glutSetCursor := nil;
@glutWarpPointer := nil;
@glutEstablishOverlay := nil;
@glutRemoveOverlay := nil;
@glutUseLayer := nil;
@glutPostOverlayRedisplay := nil;
@glutPostWindowOverlayRedisplay := nil;
@glutShowOverlay := nil;
@glutHideOverlay := nil;
@glutCreateMenu := nil;
@glutDestroyMenu := nil;
@glutGetMenu := nil;
@glutSetMenu := nil;
@glutAddMenuEntry := nil;
@glutAddSubMenu := nil;
@glutChangeToMenuEntry := nil;
@glutChangeToSubMenu := nil;
@glutRemoveMenuItem := nil;
@glutAttachMenu := nil;
@glutDetachMenu := nil;
@glutDisplayFunc := nil;
@glutReshapeFunc := nil;
@glutKeyboardFunc := nil;
@glutMouseFunc := nil;
@glutMotionFunc := nil;
@glutPassiveMotionFunc := nil;
@glutEntryFunc := nil;
@glutVisibilityFunc := nil;
@glutIdleFunc := nil;
@glutTimerFunc := nil;
@glutMenuStateFunc := nil;
@glutSpecialFunc := nil;
@glutSpaceballMotionFunc := nil;
@glutSpaceballRotateFunc := nil;
@glutSpaceballButtonFunc := nil;
@glutButtonBoxFunc := nil;
@glutDialsFunc := nil;
@glutTabletMotionFunc := nil;
@glutTabletButtonFunc := nil;
@glutMenuStatusFunc := nil;
@glutOverlayDisplayFunc := nil;
@glutWindowStatusFunc := nil;
@glutKeyboardUpFunc := nil;
@glutSpecialUpFunc := nil;
@glutJoystickFunc := nil;
@glutSetColor := nil;
@glutGetColor := nil;
@glutCopyColormap := nil;
@glutGet := nil;
@glutDeviceGet := nil;
@glutExtensionSupported := nil;
@glutGetModifiers := nil;
@glutLayerGet := nil;
@glutBitmapCharacter := nil;
@glutBitmapWidth := nil;
@glutStrokeCharacter := nil;
@glutStrokeWidth := nil;
@glutBitmapLength := nil;
@glutStrokeLength := nil;
@glutWireSphere := nil;
@glutSolidSphere := nil;
@glutWireCone := nil;
@glutSolidCone := nil;
@glutWireCube := nil;
@glutSolidCube := nil;
@glutWireTorus := nil;
@glutSolidTorus := nil;
@glutWireDodecahedron := nil;
@glutSolidDodecahedron := nil;
@glutWireTeapot := nil;
@glutSolidTeapot := nil;
@glutWireOctahedron := nil;
@glutSolidOctahedron := nil;
@glutWireTetrahedron := nil;
@glutSolidTetrahedron := nil;
@glutWireIcosahedron := nil;
@glutSolidIcosahedron := nil;
@glutVideoResizeGet := nil;
@glutSetupVideoResizing := nil;
@glutStopVideoResizing := nil;
@glutVideoResize := nil;
@glutVideoPan := nil;
@glutReportErrors := nil;
@glutIgnoreKeyRepeat := nil;
@glutSetKeyRepeat := nil;
@glutForceJoystickFunc := nil;
@glutGameModeString := nil;
@glutEnterGameMode := nil;
@glutLeaveGameMode := nil;
@glutGameModeGet := nil;
UnloadFreeGlut;
{$ENDIF MORPHOS}
end;
procedure LoadGlut(const dll: String);
{$IFDEF MORPHOS}
begin
// MorphOS's GL has own initialization in TinyGL unit, nothing is needed here.
end;
{$ELSE MORPHOS}
var
MethodName: string = '';
function GetGLutProcAddress(Lib: PtrInt; ProcName: PChar): Pointer;
begin
MethodName:=ProcName;
Result:=GetProcAddress(Lib, ProcName);
end;
begin
UnloadGlut;
hDLL := LoadLibrary(PChar(dll));
if hDLL = 0 then raise Exception.Create('Could not load Glut from ' + dll);
try
@glutInit := GetGLutProcAddress(hDLL, 'glutInit');
@glutInitDisplayMode := GetGLutProcAddress(hDLL, 'glutInitDisplayMode');
@glutInitDisplayString := GetGLutProcAddress(hDLL, 'glutInitDisplayString');
@glutInitWindowPosition := GetGLutProcAddress(hDLL, 'glutInitWindowPosition');
@glutInitWindowSize := GetGLutProcAddress(hDLL, 'glutInitWindowSize');
@glutMainLoop := GetGLutProcAddress(hDLL, 'glutMainLoop');
@glutCreateWindow := GetGLutProcAddress(hDLL, 'glutCreateWindow');
@glutCreateSubWindow := GetGLutProcAddress(hDLL, 'glutCreateSubWindow');
@glutDestroyWindow := GetGLutProcAddress(hDLL, 'glutDestroyWindow');
@glutPostRedisplay := GetGLutProcAddress(hDLL, 'glutPostRedisplay');
@glutPostWindowRedisplay := GetGLutProcAddress(hDLL, 'glutPostWindowRedisplay');
@glutSwapBuffers := GetGLutProcAddress(hDLL, 'glutSwapBuffers');
@glutGetWindow := GetGLutProcAddress(hDLL, 'glutGetWindow');
@glutSetWindow := GetGLutProcAddress(hDLL, 'glutSetWindow');
@glutSetWindowTitle := GetGLutProcAddress(hDLL, 'glutSetWindowTitle');
@glutSetIconTitle := GetGLutProcAddress(hDLL, 'glutSetIconTitle');
@glutPositionWindow := GetGLutProcAddress(hDLL, 'glutPositionWindow');
@glutReshapeWindow := GetGLutProcAddress(hDLL, 'glutReshapeWindow');
@glutPopWindow := GetGLutProcAddress(hDLL, 'glutPopWindow');
@glutPushWindow := GetGLutProcAddress(hDLL, 'glutPushWindow');
@glutIconifyWindow := GetGLutProcAddress(hDLL, 'glutIconifyWindow');
@glutShowWindow := GetGLutProcAddress(hDLL, 'glutShowWindow');
@glutHideWindow := GetGLutProcAddress(hDLL, 'glutHideWindow');
@glutFullScreen := GetGLutProcAddress(hDLL, 'glutFullScreen');
@glutSetCursor := GetGLutProcAddress(hDLL, 'glutSetCursor');
@glutWarpPointer := GetGLutProcAddress(hDLL, 'glutWarpPointer');
@glutEstablishOverlay := GetGLutProcAddress(hDLL, 'glutEstablishOverlay');
@glutRemoveOverlay := GetGLutProcAddress(hDLL, 'glutRemoveOverlay');
@glutUseLayer := GetGLutProcAddress(hDLL, 'glutUseLayer');
@glutPostOverlayRedisplay := GetGLutProcAddress(hDLL, 'glutPostOverlayRedisplay');
@glutPostWindowOverlayRedisplay := GetGLutProcAddress(hDLL, 'glutPostWindowOverlayRedisplay');
@glutShowOverlay := GetGLutProcAddress(hDLL, 'glutShowOverlay');
@glutHideOverlay := GetGLutProcAddress(hDLL, 'glutHideOverlay');
@glutCreateMenu := GetGLutProcAddress(hDLL, 'glutCreateMenu');
@glutDestroyMenu := GetGLutProcAddress(hDLL, 'glutDestroyMenu');
@glutGetMenu := GetGLutProcAddress(hDLL, 'glutGetMenu');
@glutSetMenu := GetGLutProcAddress(hDLL, 'glutSetMenu');
@glutAddMenuEntry := GetGLutProcAddress(hDLL, 'glutAddMenuEntry');
@glutAddSubMenu := GetGLutProcAddress(hDLL, 'glutAddSubMenu');
@glutChangeToMenuEntry := GetGLutProcAddress(hDLL, 'glutChangeToMenuEntry');
@glutChangeToSubMenu := GetGLutProcAddress(hDLL, 'glutChangeToSubMenu');
@glutRemoveMenuItem := GetGLutProcAddress(hDLL, 'glutRemoveMenuItem');
@glutAttachMenu := GetGLutProcAddress(hDLL, 'glutAttachMenu');
@glutDetachMenu := GetGLutProcAddress(hDLL, 'glutDetachMenu');
@glutDisplayFunc := GetGLutProcAddress(hDLL, 'glutDisplayFunc');
@glutReshapeFunc := GetGLutProcAddress(hDLL, 'glutReshapeFunc');
@glutKeyboardFunc := GetGLutProcAddress(hDLL, 'glutKeyboardFunc');
@glutMouseFunc := GetGLutProcAddress(hDLL, 'glutMouseFunc');
@glutMotionFunc := GetGLutProcAddress(hDLL, 'glutMotionFunc');
@glutPassiveMotionFunc := GetGLutProcAddress(hDLL, 'glutPassiveMotionFunc');
@glutEntryFunc := GetGLutProcAddress(hDLL, 'glutEntryFunc');
@glutVisibilityFunc := GetGLutProcAddress(hDLL, 'glutVisibilityFunc');
@glutIdleFunc := GetGLutProcAddress(hDLL, 'glutIdleFunc');
@glutTimerFunc := GetGLutProcAddress(hDLL, 'glutTimerFunc');
@glutMenuStateFunc := GetGLutProcAddress(hDLL, 'glutMenuStateFunc');
@glutSpecialFunc := GetGLutProcAddress(hDLL, 'glutSpecialFunc');
@glutSpaceballMotionFunc := GetGLutProcAddress(hDLL, 'glutSpaceballMotionFunc');
@glutSpaceballRotateFunc := GetGLutProcAddress(hDLL, 'glutSpaceballRotateFunc');
@glutSpaceballButtonFunc := GetGLutProcAddress(hDLL, 'glutSpaceballButtonFunc');
@glutButtonBoxFunc := GetGLutProcAddress(hDLL, 'glutButtonBoxFunc');
@glutDialsFunc := GetGLutProcAddress(hDLL, 'glutDialsFunc');
@glutTabletMotionFunc := GetGLutProcAddress(hDLL, 'glutTabletMotionFunc');
@glutTabletButtonFunc := GetGLutProcAddress(hDLL, 'glutTabletButtonFunc');
@glutMenuStatusFunc := GetGLutProcAddress(hDLL, 'glutMenuStatusFunc');
@glutOverlayDisplayFunc := GetGLutProcAddress(hDLL, 'glutOverlayDisplayFunc');
@glutWindowStatusFunc := GetGLutProcAddress(hDLL, 'glutWindowStatusFunc');
@glutKeyboardUpFunc := GetGLutProcAddress(hDLL, 'glutKeyboardUpFunc');
@glutSpecialUpFunc := GetGLutProcAddress(hDLL, 'glutSpecialUpFunc');
@glutJoystickFunc := GetGLutProcAddress(hDLL, 'glutJoystickFunc');
@glutSetColor := GetGLutProcAddress(hDLL, 'glutSetColor');
@glutGetColor := GetGLutProcAddress(hDLL, 'glutGetColor');
@glutCopyColormap := GetGLutProcAddress(hDLL, 'glutCopyColormap');
@glutGet := GetGLutProcAddress(hDLL, 'glutGet');
@glutDeviceGet := GetGLutProcAddress(hDLL, 'glutDeviceGet');
@glutExtensionSupported := GetGLutProcAddress(hDLL, 'glutExtensionSupported');
@glutGetModifiers := GetGLutProcAddress(hDLL, 'glutGetModifiers');
@glutLayerGet := GetGLutProcAddress(hDLL, 'glutLayerGet');
@glutBitmapCharacter := GetGLutProcAddress(hDLL, 'glutBitmapCharacter');
@glutBitmapWidth := GetGLutProcAddress(hDLL, 'glutBitmapWidth');
@glutStrokeCharacter := GetGLutProcAddress(hDLL, 'glutStrokeCharacter');
@glutStrokeWidth := GetGLutProcAddress(hDLL, 'glutStrokeWidth');
@glutBitmapLength := GetGLutProcAddress(hDLL, 'glutBitmapLength');
@glutStrokeLength := GetGLutProcAddress(hDLL, 'glutStrokeLength');
@glutWireSphere := GetGLutProcAddress(hDLL, 'glutWireSphere');
@glutSolidSphere := GetGLutProcAddress(hDLL, 'glutSolidSphere');
@glutWireCone := GetGLutProcAddress(hDLL, 'glutWireCone');
@glutSolidCone := GetGLutProcAddress(hDLL, 'glutSolidCone');
@glutWireCube := GetGLutProcAddress(hDLL, 'glutWireCube');
@glutSolidCube := GetGLutProcAddress(hDLL, 'glutSolidCube');
@glutWireTorus := GetGLutProcAddress(hDLL, 'glutWireTorus');
@glutSolidTorus := GetGLutProcAddress(hDLL, 'glutSolidTorus');
@glutWireDodecahedron := GetGLutProcAddress(hDLL, 'glutWireDodecahedron');
@glutSolidDodecahedron := GetGLutProcAddress(hDLL, 'glutSolidDodecahedron');
@glutWireTeapot := GetGLutProcAddress(hDLL, 'glutWireTeapot');
@glutSolidTeapot := GetGLutProcAddress(hDLL, 'glutSolidTeapot');
@glutWireOctahedron := GetGLutProcAddress(hDLL, 'glutWireOctahedron');
@glutSolidOctahedron := GetGLutProcAddress(hDLL, 'glutSolidOctahedron');
@glutWireTetrahedron := GetGLutProcAddress(hDLL, 'glutWireTetrahedron');
@glutSolidTetrahedron := GetGLutProcAddress(hDLL, 'glutSolidTetrahedron');
@glutWireIcosahedron := GetGLutProcAddress(hDLL, 'glutWireIcosahedron');
@glutSolidIcosahedron := GetGLutProcAddress(hDLL, 'glutSolidIcosahedron');
@glutVideoResizeGet := GetGLutProcAddress(hDLL, 'glutVideoResizeGet');
@glutSetupVideoResizing := GetGLutProcAddress(hDLL, 'glutSetupVideoResizing');
@glutStopVideoResizing := GetGLutProcAddress(hDLL, 'glutStopVideoResizing');
@glutVideoResize := GetGLutProcAddress(hDLL, 'glutVideoResize');
@glutVideoPan := GetGLutProcAddress(hDLL, 'glutVideoPan');
@glutReportErrors := GetGLutProcAddress(hDLL, 'glutReportErrors');
@glutIgnoreKeyRepeat := GetGLutProcAddress(hDLL, 'glutIgnoreKeyRepeat');
@glutSetKeyRepeat := GetGLutProcAddress(hDLL, 'glutSetKeyRepeat');
@glutForceJoystickFunc := GetGLutProcAddress(hDLL, 'glutForceJoystickFunc');
@glutGameModeString := GetGLutProcAddress(hDLL, 'glutGameModeString');
@glutEnterGameMode := GetGLutProcAddress(hDLL, 'glutEnterGameMode');
@glutLeaveGameMode := GetGLutProcAddress(hDLL, 'glutLeaveGameMode');
@glutGameModeGet := GetGLutProcAddress(hDLL, 'glutGameModeGet');
{$ifndef Windows}
GLUT_STROKE_ROMAN := GetGLutProcAddress(hDll, 'glutStrokeRoman');
GLUT_STROKE_MONO_ROMAN := GetGLutProcAddress(hDll,'glutStrokeMonoRoman');
GLUT_BITMAP_9_BY_15 := GetGLutProcAddress(hDll, 'glutBitmap9By15');
GLUT_BITMAP_8_BY_13 := GetGLutProcAddress(hDll, 'glutBitmap8By13');
GLUT_BITMAP_TIMES_ROMAN_10 := GetGLutProcAddress(hDll, 'glutBitmapTimesRoman10');
GLUT_BITMAP_TIMES_ROMAN_24 := GetGLutProcAddress(hDll, 'glutBitmapTimesRoman24');
GLUT_BITMAP_HELVETICA_10 := GetGLutProcAddress(hDll, 'glutBitmapHelvetica10');
GLUT_BITMAP_HELVETICA_12 := GetGLutProcAddress(hDll, 'glutBitmapHelvetica12');
GLUT_BITMAP_HELVETICA_18 := GetGLutProcAddress(hDll, 'glutBitmapHelvetica18');
{$endif Windows}
except
raise Exception.Create('Could not load ' + MethodName + ' from ' + dll);
end;
LoadFreeGlut(hDLL);
end;
{$ENDIF MORPHOS}
initialization
{$IFDEF Windows}
LoadGlut('glut32.dll');
{$ELSE}
{$IFDEF OS2}
LoadGlut('glut.dll');
{$ELSE OS2}
{$ifdef darwin}
LoadGlut('/System/Library/Frameworks/GLUT.framework/GLUT');
{$else}
{$IFDEF haiku}
LoadGlut('libglut.so');
{$ELSE}
{$IFNDEF MORPHOS}
LoadGlut('libglut.so.3');
{$ENDIF}
{$ENDIF}
{$endif}
{$ENDIF OS2}
{$ENDIF}
finalization
UnloadGlut;
end.