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GLPT.pas
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GLPT.pas
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{ GLPT :: OpenGL Pascal Toolkit
Copyright (c) 2018 Darius Blaszyk
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, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.
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. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
}
unit GLPT;
{$mode objfpc}
{$IFDEF DARWIN}
{$modeswitch objectivec1}
{$ENDIF}
interface
uses
{$IFDEF MSWINDOWS}
Windows;
{$ENDIF}
{$IFDEF LINUX}
Linux, UnixType, X, Xlib, xutil, GLX;
{$ENDIF}
{$IFDEF DARWIN}
CocoaAll;
{$ENDIF}
const
//OpenGL Pascal Toolkit version
GLPT_VERSION_MAJOR = 0;
GLPT_VERSION_MINOR = 1;
GLPT_VERSION_REVISION = 2;
//mouse buttons.
GLPT_MOUSE_BUTTON_LEFT = $00000001;
GLPT_MOUSE_BUTTON_MIDDLE = $00000002;
GLPT_MOUSE_BUTTON_RIGHT = $00000003;
//mouse button state.
GLPT_RELEASE = $00000000;
GLPT_PRESS = $00000001;
GLPT_REPEAT = $00000002;
//standard cursor shapes
GLPT_ARROW_CURSOR = $00000001;
GLPT_IBEAM_CURSOR = $00000002;
GLPT_CROSSHAIR_CURSOR = $00000003;
GLPT_HAND_CURSOR = $00000004;
GLPT_HRESIZE_CURSOR = $00000005;
GLPT_VRESIZE_CURSOR = $00000006;
// messages
GLPT_MESSAGE_PAINT = 1;
GLPT_MESSAGE_ACTIVATE = 2;
GLPT_MESSAGE_DEACTIVATE = 3;
GLPT_MESSAGE_KEYPRESS = 4;
GLPT_MESSAGE_KEYRELEASE = 5;
GLPT_MESSAGE_KEYCHAR = 6;
GLPT_MESSAGE_MOUSEDOWN = 7;
GLPT_MESSAGE_MOUSEUP = 8;
GLPT_MESSAGE_MOUSEMOVE = 9;
GLPT_MESSAGE_DOUBLECLICK = 10;
GLPT_MESSAGE_MOUSEENTER = 11;
GLPT_MESSAGE_MOUSEEXIT = 12;
GLPT_MESSAGE_CLOSE = 13;
GLPT_MESSAGE_SCROLL = 14;
GLPT_MESSAGE_RESIZE = 15;
GLPT_MESSAGE_MOVE = 16;
GLPT_MESSAGE_POPUPCLOSE = 17;
GLPT_MESSAGE_HINTTIMER = 18;
GLPT_MESSAGE_FREEME = 19;
GLPT_MESSAGE_DROPENTER = 20;
GLPT_MESSAGE_DROPEXIT = 21;
GLPT_MESSAGE_HSCROLL = 22;
GLPT_MESSAGE_ABOUT = 23;
GLPT_MESSAGE_USER = 50000;
GLPT_MESSAGE_KILLME = MaxInt;
// scancodes
GLPT_SCANCODE_UNKNOWN = 0;
GLPT_SCANCODE_A = 4;
GLPT_SCANCODE_B = 5;
GLPT_SCANCODE_C = 6;
GLPT_SCANCODE_D = 7;
GLPT_SCANCODE_E = 8;
GLPT_SCANCODE_F = 9;
GLPT_SCANCODE_G = 10;
GLPT_SCANCODE_H = 11;
GLPT_SCANCODE_I = 12;
GLPT_SCANCODE_J = 13;
GLPT_SCANCODE_K = 14;
GLPT_SCANCODE_L = 15;
GLPT_SCANCODE_M = 16;
GLPT_SCANCODE_N = 17;
GLPT_SCANCODE_O = 18;
GLPT_SCANCODE_P = 19;
GLPT_SCANCODE_Q = 20;
GLPT_SCANCODE_R = 21;
GLPT_SCANCODE_S = 22;
GLPT_SCANCODE_T = 23;
GLPT_SCANCODE_U = 24;
GLPT_SCANCODE_V = 25;
GLPT_SCANCODE_W = 26;
GLPT_SCANCODE_X = 27;
GLPT_SCANCODE_Y = 28;
GLPT_SCANCODE_Z = 29;
GLPT_SCANCODE_1 = 30;
GLPT_SCANCODE_2 = 31;
GLPT_SCANCODE_3 = 32;
GLPT_SCANCODE_4 = 33;
GLPT_SCANCODE_5 = 34;
GLPT_SCANCODE_6 = 35;
GLPT_SCANCODE_7 = 36;
GLPT_SCANCODE_8 = 37;
GLPT_SCANCODE_9 = 38;
GLPT_SCANCODE_0 = 39;
GLPT_SCANCODE_RETURN = 40;
GLPT_SCANCODE_ESCAPE = 41;
GLPT_SCANCODE_BACKSPACE = 42;
GLPT_SCANCODE_TAB = 43;
GLPT_SCANCODE_SPACE = 44;
GLPT_SCANCODE_MINUS = 45;
GLPT_SCANCODE_EQUALS = 46;
GLPT_SCANCODE_LEFTBRACKET = 47;
GLPT_SCANCODE_RIGHTBRACKET = 48;
GLPT_SCANCODE_BACKSLASH = 49;
GLPT_SCANCODE_NONUSHASH = 50;
GLPT_SCANCODE_SEMICOLON = 51;
GLPT_SCANCODE_APOSTROPHE = 52;
GLPT_SCANCODE_GRAVE = 53;
GLPT_SCANCODE_COMMA = 54;
GLPT_SCANCODE_PERIOD = 55;
GLPT_SCANCODE_SLASH = 56;
GLPT_SCANCODE_CAPSLOCK = 57;
GLPT_SCANCODE_F1 = 58;
GLPT_SCANCODE_F2 = 59;
GLPT_SCANCODE_F3 = 60;
GLPT_SCANCODE_F4 = 61;
GLPT_SCANCODE_F5 = 62;
GLPT_SCANCODE_F6 = 63;
GLPT_SCANCODE_F7 = 64;
GLPT_SCANCODE_F8 = 65;
GLPT_SCANCODE_F9 = 66;
GLPT_SCANCODE_F10 = 67;
GLPT_SCANCODE_F11 = 68;
GLPT_SCANCODE_F12 = 69;
GLPT_SCANCODE_PRINTSCREEN = 70;
GLPT_SCANCODE_SCROLLLOCK = 71;
GLPT_SCANCODE_PAUSE = 72;
GLPT_SCANCODE_INSERT = 73;
GLPT_SCANCODE_HOME = 74;
GLPT_SCANCODE_PAGEUP = 75;
GLPT_SCANCODE_DELETE = 76;
GLPT_SCANCODE_END = 77;
GLPT_SCANCODE_PAGEDOWN = 78;
GLPT_SCANCODE_RIGHT = 79;
GLPT_SCANCODE_LEFT = 80;
GLPT_SCANCODE_DOWN = 81;
GLPT_SCANCODE_UP = 82;
GLPT_SCANCODE_NUMLOCKCLEAR = 83;
GLPT_SCANCODE_KP_DIVIDE = 84;
GLPT_SCANCODE_KP_MULTIPLY = 85;
GLPT_SCANCODE_KP_MINUS = 86;
GLPT_SCANCODE_KP_PLUS = 87;
GLPT_SCANCODE_KP_ENTER = 88;
GLPT_SCANCODE_KP_1 = 89;
GLPT_SCANCODE_KP_2 = 90;
GLPT_SCANCODE_KP_3 = 91;
GLPT_SCANCODE_KP_4 = 92;
GLPT_SCANCODE_KP_5 = 93;
GLPT_SCANCODE_KP_6 = 94;
GLPT_SCANCODE_KP_7 = 95;
GLPT_SCANCODE_KP_8 = 96;
GLPT_SCANCODE_KP_9 = 97;
GLPT_SCANCODE_KP_0 = 98;
GLPT_SCANCODE_KP_PERIOD = 99;
GLPT_SCANCODE_NONUSBACKSLASH = 100;
GLPT_SCANCODE_APPLICATION = 101;
GLPT_SCANCODE_POWER = 102;
GLPT_SCANCODE_KP_EQUALS = 103;
GLPT_SCANCODE_F13 = 104;
GLPT_SCANCODE_F14 = 105;
GLPT_SCANCODE_F15 = 106;
GLPT_SCANCODE_F16 = 107;
GLPT_SCANCODE_F17 = 108;
GLPT_SCANCODE_F18 = 109;
GLPT_SCANCODE_F19 = 110;
GLPT_SCANCODE_F20 = 111;
GLPT_SCANCODE_F21 = 112;
GLPT_SCANCODE_F22 = 113;
GLPT_SCANCODE_F23 = 114;
GLPT_SCANCODE_F24 = 115;
GLPT_SCANCODE_EXECUTE = 116;
GLPT_SCANCODE_HELP = 117;
GLPT_SCANCODE_MENU = 118;
GLPT_SCANCODE_SELECT = 119;
GLPT_SCANCODE_STOP = 120;
GLPT_SCANCODE_AGAIN = 121;
GLPT_SCANCODE_UNDO = 122;
GLPT_SCANCODE_CUT = 123;
GLPT_SCANCODE_COPY = 124;
GLPT_SCANCODE_PASTE = 125;
GLPT_SCANCODE_FIND = 126;
GLPT_SCANCODE_MUTE = 127;
GLPT_SCANCODE_VOLUMEUP = 128;
GLPT_SCANCODE_VOLUMEDOWN = 129;
GLPT_SCANCODE_KP_COMMA = 133;
GLPT_SCANCODE_KP_EQUALSAS400 = 134;
GLPT_SCANCODE_INTERNATIONAL1 = 135;
GLPT_SCANCODE_INTERNATIONAL2 = 136;
GLPT_SCANCODE_INTERNATIONAL3 = 137;
GLPT_SCANCODE_INTERNATIONAL4 = 138;
GLPT_SCANCODE_INTERNATIONAL5 = 139;
GLPT_SCANCODE_INTERNATIONAL6 = 140;
GLPT_SCANCODE_INTERNATIONAL7 = 141;
GLPT_SCANCODE_INTERNATIONAL8 = 142;
GLPT_SCANCODE_INTERNATIONAL9 = 143;
GLPT_SCANCODE_LANG1 = 144;
GLPT_SCANCODE_LANG2 = 145;
GLPT_SCANCODE_LANG3 = 146;
GLPT_SCANCODE_LANG4 = 147;
GLPT_SCANCODE_LANG5 = 148;
GLPT_SCANCODE_LANG6 = 149;
GLPT_SCANCODE_LANG7 = 150;
GLPT_SCANCODE_LANG8 = 151;
GLPT_SCANCODE_LANG9 = 152;
GLPT_SCANCODE_ALTERASE = 153;
GLPT_SCANCODE_SYSREQ = 154;
GLPT_SCANCODE_CANCEL = 155;
GLPT_SCANCODE_CLEAR = 156;
GLPT_SCANCODE_PRIOR = 157;
GLPT_SCANCODE_RETURN2 = 158;
GLPT_SCANCODE_SEPARATOR = 159;
GLPT_SCANCODE_OUT = 160;
GLPT_SCANCODE_OPER = 161;
GLPT_SCANCODE_CLEARAGAIN = 162;
GLPT_SCANCODE_CRSEL = 163;
GLPT_SCANCODE_EXSEL = 164;
GLPT_SCANCODE_KP_00 = 176;
GLPT_SCANCODE_KP_000 = 177;
GLPT_SCANCODE_THOUSANDSSEPARATOR = 178;
GLPT_SCANCODE_DECIMALSEPARATOR = 179;
GLPT_SCANCODE_CURRENCYUNIT = 180;
GLPT_SCANCODE_CURRENCYSUBUNIT = 181;
GLPT_SCANCODE_KP_LEFTPAREN = 182;
GLPT_SCANCODE_KP_RIGHTPAREN = 183;
GLPT_SCANCODE_KP_LEFTBRACE = 184;
GLPT_SCANCODE_KP_RIGHTBRACE = 185;
GLPT_SCANCODE_KP_TAB = 186;
GLPT_SCANCODE_KP_BACKSPACE = 187;
GLPT_SCANCODE_KP_A = 188;
GLPT_SCANCODE_KP_B = 189;
GLPT_SCANCODE_KP_C = 190;
GLPT_SCANCODE_KP_D = 191;
GLPT_SCANCODE_KP_E = 192;
GLPT_SCANCODE_KP_F = 193;
GLPT_SCANCODE_KP_XOR = 194;
GLPT_SCANCODE_KP_POWER = 195;
GLPT_SCANCODE_KP_PERCENT = 196;
GLPT_SCANCODE_KP_LESS = 197;
GLPT_SCANCODE_KP_GREATER = 198;
GLPT_SCANCODE_KP_AMPERSAND = 199;
GLPT_SCANCODE_KP_DBLAMPERSAND = 200;
GLPT_SCANCODE_KP_VERTICALBAR = 201;
GLPT_SCANCODE_KP_DBLVERTICALBAR = 202;
GLPT_SCANCODE_KP_COLON = 203;
GLPT_SCANCODE_KP_HASH = 204;
GLPT_SCANCODE_KP_SPACE = 205;
GLPT_SCANCODE_KP_AT = 206;
GLPT_SCANCODE_KP_EXCLAM = 207;
GLPT_SCANCODE_KP_MEMSTORE = 208;
GLPT_SCANCODE_KP_MEMRECALL = 209;
GLPT_SCANCODE_KP_MEMCLEAR = 210;
GLPT_SCANCODE_KP_MEMADD = 211;
GLPT_SCANCODE_KP_MEMSUBTRACT = 212;
GLPT_SCANCODE_KP_MEMMULTIPLY = 213;
GLPT_SCANCODE_KP_MEMDIVIDE = 214;
GLPT_SCANCODE_KP_PLUSMINUS = 215;
GLPT_SCANCODE_KP_CLEAR = 216;
GLPT_SCANCODE_KP_CLEARENTRY = 217;
GLPT_SCANCODE_KP_BINARY = 218;
GLPT_SCANCODE_KP_OCTAL = 219;
GLPT_SCANCODE_KP_DECIMAL = 220;
GLPT_SCANCODE_KP_HEXADECIMAL = 221;
GLPT_SCANCODE_LCTRL = 224;
GLPT_SCANCODE_LSHIFT = 225;
GLPT_SCANCODE_LALT = 226;
GLPT_SCANCODE_LGUI = 227;
GLPT_SCANCODE_RCTRL = 228;
GLPT_SCANCODE_RSHIFT = 229;
GLPT_SCANCODE_RALT = 230;
GLPT_SCANCODE_RGUI = 231;
GLPT_SCANCODE_MODE = 257;
GLPT_SCANCODE_AUDIONEXT = 258;
GLPT_SCANCODE_AUDIOPREV = 259;
GLPT_SCANCODE_AUDIOSTOP = 260;
GLPT_SCANCODE_AUDIOPLAY = 261;
GLPT_SCANCODE_AUDIOMUTE = 262;
GLPT_SCANCODE_MEDIASELECT = 263;
GLPT_SCANCODE_WWW = 264;
GLPT_SCANCODE_MAIL = 265;
GLPT_SCANCODE_CALCULATOR = 266;
GLPT_SCANCODE_COMPUTER = 267;
GLPT_SCANCODE_AC_SEARCH = 268;
GLPT_SCANCODE_AC_HOME = 269;
GLPT_SCANCODE_AC_BACK = 270;
GLPT_SCANCODE_AC_FORWARD = 271;
GLPT_SCANCODE_AC_STOP = 272;
GLPT_SCANCODE_AC_REFRESH = 273;
GLPT_SCANCODE_AC_BOOKMARKS = 274;
GLPT_SCANCODE_BRIGHTNESSDOWN = 275;
GLPT_SCANCODE_BRIGHTNESSUP = 276;
GLPT_SCANCODE_DISPLAYSWITCH = 277;
GLPT_SCANCODE_KBDILLUMTOGGLE = 278;
GLPT_SCANCODE_KBDILLUMDOWN = 279;
GLPT_SCANCODE_KBDILLUMUP = 280;
GLPT_SCANCODE_EJECT = 281;
GLPT_SCANCODE_SLEEP = 282;
GLPT_SCANCODE_APP1 = 283;
GLPT_SCANCODE_APP2 = 284;
GLPT_NUM_SCANCODES = 283;
// keycodes
GLPT_KEY_RETURN = $D;
GLPT_KEY_ESCAPE = $1B;
GLPT_KEY_BACKSPACE = $8;
GLPT_KEY_TAB = $9;
GLPT_KEY_SPACE = Ord(' ');
GLPT_KEY_EXCLAIM = Ord('!');
GLPT_KEY_QUOTEDBL = Ord('"');
GLPT_KEY_HASH = Ord('#');
GLPT_KEY_DOLLAR = Ord('$');
GLPT_KEY_PERCENT = Ord('%');
GLPT_KEY_AMPERSAND = Ord('&');
GLPT_KEY_QUOTE = Ord('''');
GLPT_KEY_LEFTPAREN = Ord('(');
GLPT_KEY_RIGHTPAREN = Ord(')');
GLPT_KEY_ASTERISK = Ord('*');
GLPT_KEY_PLUS = Ord('+');
GLPT_KEY_COMMA = Ord(',');
GLPT_KEY_MINUS = Ord('-');
GLPT_KEY_PERIOD = Ord('.');
GLPT_KEY_SLASH = Ord('/');
GLPT_KEY_0 = Ord('0');
GLPT_KEY_1 = Ord('1');
GLPT_KEY_2 = Ord('2');
GLPT_KEY_3 = Ord('3');
GLPT_KEY_4 = Ord('4');
GLPT_KEY_5 = Ord('5');
GLPT_KEY_6 = Ord('6');
GLPT_KEY_7 = Ord('7');
GLPT_KEY_8 = Ord('8');
GLPT_KEY_9 = Ord('9');
GLPT_KEY_COLON = Ord(':');
GLPT_KEY_SEMICOLON = Ord(';');
GLPT_KEY_LESS = Ord('<');
GLPT_KEY_EQUALS = Ord('=');
GLPT_KEY_GREATER = Ord('>');
GLPT_KEY_QUESTION = Ord('?');
GLPT_KEY_AT = Ord('@');
GLPT_KEY_LEFTBRACKET = Ord('[');
GLPT_KEY_BACKSLASH = Ord('\');
GLPT_KEY_RIGHTBRACKET = Ord(']');
GLPT_KEY_CARET = Ord('^');
GLPT_KEY_UNDERSCORE = Ord('_');
GLPT_KEY_BACKQUOTE = Ord('`');
GLPT_KEY_a = Ord('a');
GLPT_KEY_b = Ord('b');
GLPT_KEY_c = Ord('c');
GLPT_KEY_d = Ord('d');
GLPT_KEY_e = Ord('e');
GLPT_KEY_f = Ord('f');
GLPT_KEY_g = Ord('g');
GLPT_KEY_h = Ord('h');
GLPT_KEY_i = Ord('i');
GLPT_KEY_j = Ord('j');
GLPT_KEY_k = Ord('k');
GLPT_KEY_l = Ord('l');
GLPT_KEY_m = Ord('m');
GLPT_KEY_n = Ord('n');
GLPT_KEY_o = Ord('o');
GLPT_KEY_p = Ord('p');
GLPT_KEY_q = Ord('q');
GLPT_KEY_r = Ord('r');
GLPT_KEY_s = Ord('s');
GLPT_KEY_t = Ord('t');
GLPT_KEY_u = Ord('u');
GLPT_KEY_v = Ord('v');
GLPT_KEY_w = Ord('w');
GLPT_KEY_x = Ord('x');
GLPT_KEY_y = Ord('y');
GLPT_KEY_z = Ord('z');
GLPT_KEY_CAPSLOCK = $40000039;
GLPT_KEY_F1 = $4000003A;
GLPT_KEY_F2 = $4000003B;
GLPT_KEY_F3 = $4000003C;
GLPT_KEY_F4 = $4000003D;
GLPT_KEY_F5 = $4000003E;
GLPT_KEY_F6 = $4000003F;
GLPT_KEY_F7 = $40000040;
GLPT_KEY_F8 = $40000041;
GLPT_KEY_F9 = $40000042;
GLPT_KEY_F10 = $40000043;
GLPT_KEY_F11 = $40000044;
GLPT_KEY_F12 = $40000045;
GLPT_KEY_PRINTSCREEN = $40000046;
GLPT_KEY_SCROLLLOCK = $40000047;
GLPT_KEY_PAUSE = $40000048;
GLPT_KEY_INSERT = $40000049;
GLPT_KEY_HOME = $4000004A;
GLPT_KEY_PAGEUP = $4000004B;
GLPT_KEY_DELETE = $7F;
GLPT_KEY_END = $4000004D;
GLPT_KEY_PAGEDOWN = $4000004E;
GLPT_KEY_RIGHT = $4000004F;
GLPT_KEY_LEFT = $40000050;
GLPT_KEY_DOWN = $40000051;
GLPT_KEY_UP = $40000052;
GLPT_KEY_NUMLOCKCLEAR = $40000053;
GLPT_KEY_KP_DIVIDE = $40000054;
GLPT_KEY_KP_MULTIPLY = $40000055;
GLPT_KEY_KP_MINUS = $40000056;
GLPT_KEY_KP_PLUS = $40000057;
GLPT_KEY_KP_ENTER = $40000058;
GLPT_KEY_KP_1 = $40000059;
GLPT_KEY_KP_2 = $4000005A;
GLPT_KEY_KP_3 = $4000005B;
GLPT_KEY_KP_4 = $4000005C;
GLPT_KEY_KP_5 = $4000005D;
GLPT_KEY_KP_6 = $4000005E;
GLPT_KEY_KP_7 = $4000005F;
GLPT_KEY_KP_8 = $40000060;
GLPT_KEY_KP_9 = $40000061;
GLPT_KEY_KP_0 = $40000062;
GLPT_KEY_KP_PERIOD = $40000063;
GLPT_KEY_APPLICATION = $40000065;
GLPT_KEY_POWER = $40000066;
GLPT_KEY_KP_EQUALS = $40000067;
GLPT_KEY_F13 = $40000068;
GLPT_KEY_F14 = $40000069;
GLPT_KEY_F15 = $4000006A;
GLPT_KEY_F16 = $4000006B;
GLPT_KEY_F17 = $4000006C;
GLPT_KEY_F18 = $4000006D;
GLPT_KEY_F19 = $4000006E;
GLPT_KEY_F20 = $4000006F;
GLPT_KEY_F21 = $40000070;
GLPT_KEY_F22 = $40000071;
GLPT_KEY_F23 = $40000072;
GLPT_KEY_F24 = $40000073;
GLPT_KEY_EXECUTE = $40000074;
GLPT_KEY_HELP = $40000075;
GLPT_KEY_MENU = $40000076;
GLPT_KEY_SELECT = $40000077;
GLPT_KEY_STOP = $40000078;
GLPT_KEY_AGAIN = $40000079;
GLPT_KEY_UNDO = $4000007A;
GLPT_KEY_CUT = $4000007B;
GLPT_KEY_COPY = $4000007C;
GLPT_KEY_PASTE = $4000007D;
GLPT_KEY_FIND = $4000007E;
GLPT_KEY_MUTE = $4000007F;
GLPT_KEY_VOLUMEUP = $40000080;
GLPT_KEY_VOLUMEDOWN = $40000081;
GLPT_KEY_KP_COMMA = $40000085;
GLPT_KEY_KP_EQUALSAS400 = $40000086;
GLPT_KEY_ALTERASE = $40000099;
GLPT_KEY_SYSREQ = $4000009A;
GLPT_KEY_CANCEL = $4000009B;
GLPT_KEY_CLEAR = $4000009C;
GLPT_KEY_PRIOR = $4000009D;
GLPT_KEY_RETURN2 = $4000009E;
GLPT_KEY_SEPARATOR = $4000009F;
GLPT_KEY_OUT = $400000A0;
GLPT_KEY_OPER = $400000A1;
GLPT_KEY_CLEARAGAIN = $400000A2;
GLPT_KEY_CRSEL = $400000A3;
GLPT_KEY_EXSEL = $400000A4;
GLPT_KEY_KP_00 = $400000B0;
GLPT_KEY_KP_000 = $400000B1;
GLPT_KEY_THOUSANDSSEPARATOR = $400000B2;
GLPT_KEY_DECIMALSEPARATOR = $400000B3;
GLPT_KEY_CURRENCYUNIT = $400000B4;
GLPT_KEY_CURRENCYSUBUNIT = $400000B5;
GLPT_KEY_KP_LEFTPAREN = $400000B6;
GLPT_KEY_KP_RIGHTPAREN = $400000B7;
GLPT_KEY_KP_LEFTBRACE = $400000B8;
GLPT_KEY_KP_RIGHTBRACE = $400000B9;
GLPT_KEY_KP_TAB = $400000BA;
GLPT_KEY_KP_BACKSPACE = $400000BB;
GLPT_KEY_KP_A = $400000BC;
GLPT_KEY_KP_B = $400000BD;
GLPT_KEY_KP_C = $400000BE;
GLPT_KEY_KP_D = $400000BF;
GLPT_KEY_KP_E = $400000C0;
GLPT_KEY_KP_F = $400000C1;
GLPT_KEY_KP_XOR = $400000C2;
GLPT_KEY_KP_POWER = $400000C3;
GLPT_KEY_KP_PERCENT = $400000C4;
GLPT_KEY_KP_LESS = $400000C5;
GLPT_KEY_KP_GREATER = $400000C6;
GLPT_KEY_KP_AMPERSAND = $400000C7;
GLPT_KEY_KP_DBLAMPERSAND = $400000C8;
GLPT_KEY_KP_VERTICALBAR = $400000C9;
GLPT_KEY_KP_DBLVERTICALBAR = $400000CA;
GLPT_KEY_KP_COLON = $400000CB;
GLPT_KEY_KP_HASH = $400000CC;
GLPT_KEY_KP_SPACE = $400000CD;
GLPT_KEY_KP_AT = $400000CE;
GLPT_KEY_KP_EXCLAM = $400000CF;
GLPT_KEY_KP_MEMSTORE = $400000D0;
GLPT_KEY_KP_MEMRECALL = $400000D1;
GLPT_KEY_KP_MEMCLEAR = $400000D2;
GLPT_KEY_KP_MEMADD = $400000D3;
GLPT_KEY_KP_MEMSUBTRACT = $400000D4;
GLPT_KEY_KP_MEMMULTIPLY = $400000D5;
GLPT_KEY_KP_MEMDIVIDE = $400000D6;
GLPT_KEY_KP_PLUSMINUS = $400000D7;
GLPT_KEY_KP_CLEAR = $400000D8;
GLPT_KEY_KP_CLEARENTRY = $400000D9;
GLPT_KEY_KP_BINARY = $400000DA;
GLPT_KEY_KP_OCTAL = $400000DB;
GLPT_KEY_KP_DECIMAL = $400000DC;
GLPT_KEY_KP_HEXADECIMAL = $400000DD;
GLPT_KEY_LCTRL = $400000E0;
GLPT_KEY_LSHIFT = $400000E1;
GLPT_KEY_LALT = $400000E2;
GLPT_KEY_LGUI = $400000E3;
GLPT_KEY_RCTRL = $400000E4;
GLPT_KEY_RSHIFT = $400000E5;
GLPT_KEY_RALT = $400000E6;
GLPT_KEY_RGUI = $400000E7;
GLPT_KEY_MODE = $40000101;
GLPT_KEY_AUDIONEXT = $40000102;
GLPT_KEY_AUDIOPREV = $40000103;
GLPT_KEY_AUDIOSTOP = $40000104;
GLPT_KEY_AUDIOPLAY = $40000105;
GLPT_KEY_AUDIOMUTE = $40000106;
GLPT_KEY_MEDIASELECT = $40000107;
GLPT_KEY_WWW = $40000108;
GLPT_KEY_MAIL = $40000109;
GLPT_KEY_CALCULATOR = $4000010A;
GLPT_KEY_COMPUTER = $4000010B;
GLPT_KEY_AC_SEARCH = $4000010C;
GLPT_KEY_AC_HOME = $4000010D;
GLPT_KEY_AC_BACK = $4000010E;
GLPT_KEY_AC_FORWARD = $4000010F;
GLPT_KEY_AC_STOP = $40000110;
GLPT_KEY_AC_REFRESH = $40000111;
GLPT_KEY_AC_BOOKMARKS = $40000112;
GLPT_KEY_BRIGHTNESSDOWN = $40000113;
GLPT_KEY_BRIGHTNESSUP = $40000114;
GLPT_KEY_DISPLAYSWITCH = $40000115;
GLPT_KEY_KBDILLUMTOGGLE = $40000116;
GLPT_KEY_KBDILLUMDOWN = $40000117;
GLPT_KEY_KBDILLUMUP = $40000118;
GLPT_KEY_EJECT = $40000119;
GLPT_KEY_SLEEP = $4000011A;
// OpenGL context profile
GLPT_CONTEXT_PROFILE_LEGACY = 1;
GLPT_CONTEXT_PROFILE_CORE = 2;
// window style flags
GLPT_WINDOW_DEFAULT = 0;
GLPT_WINDOW_BORDERLESS = $00000001;
GLPT_WINDOW_TITLED = $00000002;
GLPT_WINDOW_CLOSABLE = $00000004;
GLPT_WINDOW_MINIATURIZABLE = $00000008;
GLPT_WINDOW_RESIZABLE = $000000010;
GLPT_WINDOW_FULLSCREEN = $000000020;
GLPT_WINDOW_POS_CENTER = -MaxInt;
type
{ Types used by standard events }
TShiftStateEnum = (ssShift, ssAlt, ssCtrl,
ssLeft, ssRight, ssMiddle, ssDouble,
// Extra additions
ssMeta, ssSuper, ssHyper, ssAltGr, ssCaps, ssNum,
ssScroll, ssTriple, ssQuad, ssExtra1, ssExtra2);
{$packset 1}
TShiftState = set of TShiftStateEnum;
{$packset default}
GLPT_Scancode = LongWord;
GLPT_Keycode = LongWord;
pGLPT_MessageRec = ^GLPT_MessageRec;
GLPT_EventCallback = procedure(msg: pGLPT_MessageRec);
GLPT_ErrorCallback = procedure(const error: integer; const description: string);
GLPT_DisplayMode = packed record
format: integer; { pixel format }
w: integer; { width }
h: integer; { height }
refresh_rate: integer; { refresh rate (or zero for unspecified) }
end;
GLPT_Context = record
colorSize: byte;
depthSize: byte;
doubleBuffer: boolean;
majorVersion: byte;
minorVersion: byte;
profile: byte;
stencilSize: byte;
end;
pGLPTwindow = ^GLPTwindow;
GLPTWindow = record
next: pGLPTwindow; //< Next item in the window list
prev: pGLPTwindow; //< Previous item in the window list
//Window settings and state
context: GLPT_Context;
fscreen: boolean; //< Flag that indictes if the window is fullscreen or not
shouldClose: boolean; //< Flag indicating if the window should close
//callback functions
event_callback: GLPT_EventCallback; //< event callback function for this window
userData: pointer; //< custom pointer to user defined data
flags: longint;
{$IFDEF MSWINDOWS}
h_Wnd: Windows.HWND; //< GDI window handle
h_DC: Windows.HDC; //< GDI device context
h_RC: HGLRC; //< GDI rendering context
{$ENDIF}
{$IFDEF LINUX}
dpy: pDisplay; //< X11 display
Xwin: TWindow; //< X11 window
ctx: GLXContext; //< X11 GLX context
wmDeleteMessage: TAtom; //< X11 delete mesage callback
{$ENDIF}
{$IFDEF DARWIN}
ref: NSWindow;
GLcontext: NSOpenGLContext
{$ENDIF}
end;
GLPT_MsgParmMouse = record
x: integer; //< X position of the mouse
y: integer; //< Y position of the mouder
buttons: word; //< button state of the mouse
shiftstate: TShiftState; //< shift state of the keyboard
delta: integer; //< drag distance of mouse
timestamp: TDateTime; //< timestamp when event was generated
end;
GLPT_MsgParmKeyboard = record
keycode: GLPT_Keycode;
scancode: GLPT_Scancode;
shiftstate: TShiftState; //< shift state of the keyboard
end;
GLPT_MsgParmUser = record
param1: pointer; //< custom message 1
param2: pointer; //< custom message 2
param3: pointer; //< custom message 3
end;
GLPT_MsgParmRect = record
top: integer; //< top of rectangle being sent
left: integer; //< left of rectangle being sent
width: integer; //< width of rectangle being sent
height: integer; //< height of rectangle being sent
end;
pGLPT_MessageParams = ^GLPT_MessageParams;
GLPT_MessageParams = record
case integer of
0: (mouse: GLPT_MsgParmMouse); //< mouse event record
1: (keyboard: GLPT_MsgParmKeyboard); //< keyboard event record
2: (rect: GLPT_MsgParmRect); //< rectangel event record
3: (user: GLPT_MsgParmUser); //< used defined event record
end;
GLPT_MessageRec = record
next: pGLPT_MessageRec; //< next item in the list
prev: pGLPT_MessageRec; //< previous item in the list
win: pGLPTwindow; //< GLPT window that has sent message
mcode: integer; //< message code
params: GLPT_MessageParams; //< event data
end;
GLPTRect = record
left: longint; //< left position of rectangle
top: longint; //< top position of rectangle
right: longint; //< right position of rectangle
bottom: longint; //< bottom position of rectangle
end;
{
This function loads a function from the OpenGL library.
@return the pointer to the OpenGL function
}
function GLPT_GetProcAddress(ProcName: pchar): Pointer;
{
This function returns the GLPT version as string.
@return the GLPT version
}
function GLPT_GetVersionString: string;
{
This function returns the last occurred error message. Please note that also the error callback function returns the
same error message.
@return the error string
}
function GLPT_GetLastError: string;
{
This function returns the value of the time elapsed since GLPT was initialized.
@return the time in seconds
}
function GLPT_GetTime: double;
{
This function returns the value of the time elapsed (in milliseconds) since GLPT was initialized.
@return the time in milliseconds
}
function GLPT_GetTicks: longint;
{
Initializes the GLPT library
@return True if successfull otherwise False
}
function GLPT_Init: boolean;
{
Terminates the GLPT library
@return True if successfull otherwise False
}
function GLPT_Terminate: boolean;
{
This function checks if the internal state variable
@param win: the window that should be checked
@return the value of the internal state variable
}
function GLPT_WindowShouldClose(win: pGLPTwindow): boolean;
{
This procedure terminates the main event loop
@param win: the window that should be closed
@param Value: the value that should be given to the internal state variable
}
procedure GLPT_SetWindowShouldClose(win: pGLPTwindow; Value: boolean);
{
Returns default OpenGL context settings.
@return filled GLPT_Context record
}
function GLPT_GetDefaultContext: GLPT_Context;
{
Creates a window and its associated context.
@param posx: the x position of the window
@param posy: the y position of the window
@param sizex: the width of the window
@param sizey: the height of the window
@param title: the title of the window
@return a reference to the created window
}
function GLPT_CreateWindow(posx, posy, sizex, sizey: integer; title: PChar; context: GLPT_Context; flags: longint = GLPT_WINDOW_DEFAULT): pGLPTwindow;
{
Destroys a window and its associated context.
@param win: the reference to the window being destroyed
}
procedure GLPT_DestroyWindow(win: pGLPTwindow);
{
Make the window active
@param win: the window that should be made active
@return True if successfull otherwise False
}
function GLPT_MakeCurrent(win: pGLPTwindow): boolean;
{
Swaps the front and back buffers of the specified window.
@param win: the reference to the window
}
procedure GLPT_SwapBuffers(win: pGLPTwindow);
{
Retrieves the size of the framebuffer of the specified window.
@param win: the reference to the window
@param width: the width of the window
@param height: the height of the window
}
procedure GLPT_GetFrameBufferSize(win: pGLPTwindow; out width, height: integer);
{
Sets the error callback procedure
@param pointer to error callback:
}
procedure GLPT_SetErrorCallback(errorCallback: GLPT_ErrorCallback);
{
This procedure will poll for any pending events and put them in
the eventlist. Next the eventlist is checked and if needed the event
callback function is called.
}
procedure GLPT_PollEvents;
{
Set the cursor to a predefined one
@param cursor: the index of the cursor
}
procedure GLPT_SetCursor(cursor: byte);
{
Retrieve the display coordinate size
@param dr: the variable holding the display coordinates
}
procedure GLPT_GetDisplayCoords(var dr: GLPTRect);
{
Use this function to get the directory where the application was run from.
This is where the application data directory is.
@return path of directory
}
function GLPT_GetBasePath: string;
{
Use this function to get the "pref dir". This is meant to be where the application
can write personal files (Preferences and save games, etc.) that are specific to the application.
This directory is unique per user and per application.
@param org: name of organization
@param app: name of application
@return path of directory
}
function GLPT_GetPrefPath (org: string; app: string): string;
{
Converts a scancode to human-readable name
@return name of scancode
}
function GLPT_GetScancodeName (scancode: GLPT_Scancode): string;
{
Enables or disables vsync
@param status: vsync status
}
procedure GLPT_SetVSync(sync: boolean);
implementation
uses
SysUtils,
{$IFNDEF MORPHOS}
dynlibs;
{$ENDIF}
var
LibGLHandle: PtrInt;
const
{$IFDEF WINDOWS}
LibGL: pchar = 'opengl32.dll';
{$ELSE}
{$IFDEF OS2}
LibGL: pchar = 'opengl.dll';
{$ELSE OS2}
{$IFDEF DARWIN}
LibGL: pchar = '/System/Library/Frameworks/OpenGL.framework/Libraries/libGL.dylib';
{$ELSE}
{$IFDEF MORPHOS}
InitTinyGLLibrary;
{$ELSE}
{$IFDEF HAIKU}
LibGL: pchar = 'libGL.so';
{$ELSE}
LibGL: pchar = 'libGL.so.1';
{$ENDIF HAIKU}
{$ENDIF MORPHOS}
{$ENDIF DARWIN}
{$ENDIF OS2}
{$ENDIF WINDOWS}
{$i GLPT_Keyboard.inc}
const
GLPT_ERROR_NONE = 1;
GLPT_ERROR_PLATFORM = 2;
GLPT_ERROR_UNKNOWN = 255;
type
pLink = ^Link;
Link = record
next: pLink;
prev: pLink;
end;
ListBase = record
first: pLink;
last: pLink;
end;
GLPT_error = record
error: integer;
msg: string;
end;
var
msglist: ListBase;
errfunc: GLPT_ErrorCallback = nil;
windowlist: ListBase;
current_win: pGLPTwindow;
inittime: double = 0;
initticks: longint = 0;
initialized: boolean = False;
lasterr: GLPT_error;
//*** Error handling *************************************************************************************************
procedure glptError(const error: integer; const msg: string);
var
errmsg: string;
begin
case error of
GLPT_ERROR_NONE: errmsg := 'GLPT_ERROR_NONE : ' + msg;
GLPT_ERROR_PLATFORM: errmsg := 'GLPT_ERROR_PLATFORM : ' + msg;
GLPT_ERROR_UNKNOWN: errmsg := 'GLPT_ERROR_UNKNOWN : ' + msg;
else
errmsg := 'GLPT_ERROR_UNKNOWN : ' + msg;
end;
//store the last error
lasterr.error := error;
lasterr.msg := msg;
if assigned(errfunc) then
errfunc(error, errmsg);
end;
//*** Memory handling ************************************************************************************************
function calloc(size: ptruint): pointer;
var
itm: pointer;
begin
GetMem(itm, size);
FillByte(itm^, size, 0);
exit(itm);
end;
procedure add_tail(var list: listbase; item: pLink);
begin
item^.next := nil;
item^.prev := list.last;
if list.last <> nil then
list.last^.next := item;
if list.first = nil then
list.first := item;
list.last := item;
end;
procedure remove_link(var list: listbase; item: pLink);
begin
if item^.next <> nil then
item^.next^.prev := item^.prev;
if item^.prev <> nil then
item^.prev^.next := item^.next;
if list.last = item then
list.last := item^.prev;
if list.first = item then