/usr/include/t4k_common.h is in libt4k-common0-dev 0.1.1-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 676 677 678 679 680 681 682 683 684 685 686 687 688 689 690 691 692 693 694 695 696 697 698 699 700 701 702 703 704 705 706 707 708 709 710 711 712 713 714 715 716 717 718 719 720 721 722 723 724 725 726 727 728 729 730 731 732 733 734 735 736 737 738 739 740 741 742 743 744 745 746 747 748 749 750 751 752 753 754 755 756 757 758 759 760 761 762 763 764 765 766 767 768 769 770 771 772 773 774 775 776 777 778 779 780 781 782 783 784 785 786 787 788 789 790 791 792 793 794 795 796 797 798 799 800 801 802 803 804 805 806 807 808 809 810 811 812 813 814 815 816 817 818 819 820 821 822 823 824 825 826 827 828 829 830 831 832 833 834 835 836 837 838 839 840 841 842 843 844 845 846 847 848 849 850 851 852 853 854 855 856 857 858 859 860 861 862 863 864 865 866 867 868 869 870 871 872 873 874 875 876 877 878 879 880 881 882 883 884 885 886 887 888 889 890 891 892 893 894 895 896 897 898 899 900 901 902 903 904 905 906 907 908 909 910 911 912 913 914 915 916 917 918 919 920 921 922 923 924 925 926 927 928 929 930 931 932 933 934 935 936 937 938 939 940 941 942 943 944 945 946 947 948 949 950 951 952 953 954 955 956 957 958 959 960 961 962 963 964 965 966 967 968 969 970 971 972 973 974 975 976 977 978 979 980 981 982 983 984 985 986 987 988 989 990 991 992 993 994 995 996 997 998 999 1000 1001 1002 1003 1004 1005 1006 1007 1008 1009 1010 1011 1012 1013 1014 1015 1016 1017 1018 1019 1020 1021 1022 1023 1024 1025 1026 1027 1028 1029 1030 1031 1032 1033 1034 1035 1036 1037 1038 1039 1040 1041 1042 1043 1044 1045 1046 1047 1048 1049 1050 1051 1052 1053 1054 1055 1056 1057 1058 1059 1060 1061 1062 1063 1064 1065 1066 1067 1068 1069 1070 1071 1072 1073 1074 1075 1076 1077 1078 1079 1080 1081 1082 1083 1084 1085 1086 1087 1088 1089 1090 1091 1092 1093 1094 1095 1096 1097 1098 1099 1100 1101 1102 1103 1104 1105 1106 1107 1108 1109 1110 1111 1112 1113 1114 1115 1116 1117 1118 1119 1120 1121 1122 1123 1124 1125 1126 1127 1128 1129 1130 1131 1132 1133 1134 1135 1136 1137 1138 1139 1140 1141 1142 1143 1144 1145 1146 1147 1148 1149 1150 1151 1152 1153 1154 1155 1156 1157 1158 1159 1160 1161 1162 1163 1164 1165 1166 1167 1168 1169 1170 1171 1172 1173 1174 1175 1176 1177 1178 1179 1180 1181 1182 1183 1184 1185 1186 1187 1188 1189 1190 1191 1192 1193 1194 1195 1196 1197 1198 1199 1200 1201 1202 1203 1204 1205 1206 1207 1208 1209 1210 1211 1212 1213 1214 1215 1216 1217 1218 1219 1220 1221 1222 1223 1224 1225 1226 1227 1228 1229 1230 1231 1232 1233 1234 1235 1236 1237 1238 1239 1240 1241 1242 1243 1244 1245 1246 1247 1248 1249 1250 1251 1252 1253 1254 1255 1256 1257 1258 1259 1260 1261 1262 1263 1264 1265 1266 1267 1268 1269 1270 1271 1272 1273 1274 1275 1276 1277 1278 1279 1280 1281 1282 1283 1284 1285 1286 1287 1288 1289 1290 1291 1292 1293 1294 1295 1296 1297 1298 1299 1300 1301 1302 1303 1304 1305 1306 1307 1308 1309 1310 1311 1312 1313 1314 1315 1316 1317 1318 1319 1320 1321 1322 1323 1324 1325 1326 1327 1328 1329 1330 1331 1332 1333 1334 1335 1336 1337 1338 1339 1340 1341 1342 1343 1344 1345 1346 1347 1348 1349 1350 1351 1352 1353 1354 1355 1356 1357 1358 1359 1360 1361 1362 1363 1364 1365 1366 1367 1368 1369 1370 1371 1372 1373 1374 1375 1376 1377 1378 1379 1380 1381 1382 1383 1384 1385 1386 1387 1388 1389 1390 1391 1392 1393 1394 1395 1396 1397 1398 1399 1400 1401 1402 1403 1404 1405 1406 1407 1408 1409 1410 1411 1412 1413 1414 1415 1416 1417 1418 1419 1420 1421 1422 1423 1424 1425 1426 1427 1428 1429 1430 1431 1432 1433 1434 1435 1436 1437 1438 1439 1440 1441 1442 1443 1444 1445 1446 1447 1448 1449 1450 1451 1452 1453 1454 1455 1456 1457 1458 1459 1460 1461 1462 1463 1464 1465 1466 1467 1468 1469 1470 1471 1472 1473 1474 1475 1476 1477 1478 1479 1480 1481 1482 1483 1484 1485 1486 1487 1488 1489 1490 1491 1492 1493 1494 1495 1496 1497 1498 1499 1500 1501 1502 1503 1504 1505 1506 1507 1508 1509 1510 1511 1512 1513 1514 1515 1516 1517 1518 1519 1520 1521 1522 1523 1524 1525 1526 1527 1528 1529 1530 1531 1532 1533 1534 1535 1536 1537 1538 1539 1540 1541 1542 1543 1544 1545 1546 1547 1548 1549 1550 1551 1552 1553 1554 1555 1556 1557 1558 1559 1560 1561 1562 1563 1564 1565 1566 1567 1568 1569 1570 1571 1572 1573 1574 1575 1576 1577 1578 1579 1580 1581 1582 1583 1584 1585 1586 1587 1588 1589 1590 1591 1592 1593 1594 1595 1596 1597 1598 1599 1600 1601 1602 1603 1604 1605 1606 1607 1608 1609 1610 1611 1612 1613 1614 1615 1616 1617 1618 1619 1620 1621 1622 1623 1624 1625 1626 1627 1628 1629 1630 1631 1632 1633 1634 1635 1636 1637 1638 1639 1640 1641 1642 1643 1644 1645 1646 1647 1648 1649 1650 1651 1652 1653 1654 1655 1656 1657 1658 1659 1660 1661 1662 1663 1664 1665 1666 1667 1668 1669 1670 1671 1672 1673 1674 1675 1676 1677 1678 1679 1680 1681 1682 1683 1684 1685 1686 1687 1688 1689 1690 1691 1692 1693 1694 1695 1696 1697 1698 1699 1700 1701 1702 1703 1704 1705 1706 1707 1708 1709 1710 1711 1712 1713 1714 1715 1716 1717 1718 1719 1720 1721 1722 1723 1724 1725 1726 1727 1728 1729 1730 1731 1732 1733 1734 1735 1736 1737 1738 1739 1740 1741 1742 1743 1744 1745 1746 1747 1748 1749 1750 1751 1752 1753 1754 1755 1756 1757 1758 1759 1760 1761 1762 1763 1764 1765 1766 1767 1768 1769 1770 1771 1772 1773 1774 1775 1776 1777 1778 1779 1780 1781 1782 1783 1784 1785 1786 1787 1788 1789 1790 1791 1792 1793 1794 1795 1796 1797 1798 1799 1800 1801 1802 1803 1804 1805 1806 1807 1808 1809 1810 1811 1812 1813 1814 1815 1816 1817 1818 1819 1820 1821 1822 1823 1824 1825 1826 1827 1828 1829 1830 1831 1832 1833 1834 1835 1836 1837 1838 1839 1840 1841 1842 1843 1844 1845 1846 1847 1848 1849 1850 1851 1852 1853 1854 1855 1856 1857 1858 1859 1860 1861 1862 1863 1864 1865 1866 1867 1868 1869 1870 1871 1872 1873 1874 1875 1876 1877 1878 1879 1880 1881 1882 1883 1884 1885 1886 1887 1888 1889 1890 1891 1892 1893 1894 1895 1896 1897 1898 1899 1900 1901 1902 1903 1904 1905 1906 1907 1908 1909 1910 1911 1912 1913 1914 1915 1916 1917 1918 1919 1920 1921 1922 1923 1924 1925 1926 1927 1928 1929 1930 1931 1932 1933 1934 1935 1936 1937 1938 1939 1940 1941 1942 1943 1944 1945 1946 1947 1948 1949 1950 1951 1952 1953 1954 1955 1956 1957 1958 1959 1960 1961 1962 1963 1964 1965 1966 1967 1968 1969 1970 1971 1972 1973 1974 1975 1976 1977 1978 1979 1980 1981 1982 1983 1984 | //==============================================================================
//
// t4k_common.h: Contains public headers for the t4k_common library
//
// Copyright 2009, 2010.
// Author: Brendan Luchen
// Project email: <tuxmath-devel@lists.sourceforge.net>
// Project website: http://tux4kids.alioth.debian.org
//
// t4k_common.h is part of the t4k_common library.
//
// t4k_common is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation; either version 3 of the License, or
// (at your option) any later version.
//
// t4k_common 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 General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
//
//==============================================================================
//==============================================================================
//
//! \file
//! t4k_common.h
//!
//! \mainpage
//! Tux4Kids_common
//!
//! \section intro_sec Description
//!
//! A library of common functions used in these Tux4Kids games
//! - Tux, of Math Command
//! - Tux Typing
//!
//! Part of "Tux4Kids" Project
//!
//! http://www.tux4kids.com/
//!
//! Please look through t4k_common.h for detailed documentation.
//!
//! \section copyright_sec Copyright
//!
//! See COPYING file that comes with this distribution.
//!
#ifndef TUX4KIDS_COMMON_H
#define TUX4KIDS_COMMON_H
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
#include <dirent.h>
#include <wchar.h>
#include "SDL.h"
#include "SDL_image.h"
#include "SDL_mixer.h"
//==============================================================================
// Debugging macros
//
// All macros take a debug mask as their first argument, which should roughly
// indicate what part of the program the debugging info is related to, and
// which can be one of the flags defined below, a program-specific flag, or
// an OR'd combination.
//
// DEBUGVAR prints out the name and value of a string variable
#ifndef DEBUGMSG
//! DEBUGVAR prints out the name and value of a string variable
#define DEBUGVAR(mask, Expr) \
if((mask) & (debug_status)) \
{ \
fprintf(stderr, #Expr ": %s\n", (Expr)); fflush(stderr); \
}
//! DEBUGVARX prints out the name and hex value of an integral variable
#define DEBUGVARX(mask, Expr) \
if((mask) & (debug_status)) \
{ \
fprintf(stderr, #Expr ": %x\n", (Expr)); fflush(stderr); \
}
//! DEBUGVARF prints out the name and decimal value of a floating point variable
#define DEBUGVARF(mask, Expr) \
if((mask) & (debug_status)) \
{ \
fprintf(stderr, #Expr ": %f\n", (Expr)); fflush(stderr); \
}
//! DEBUGCODE is a conditional and should be followed by a code block
#define DEBUGCODE(mask) if((mask) & debug_status)
//! DEBUGMSG prints out a specific message, which can be formatted like printf
#define DEBUGMSG(mask, ...) \
if((mask) & debug_status) \
{ \
fprintf(stderr, __VA_ARGS__); fflush(stderr); \
}
#endif
#if SDL_BYTEORDER == SDL_BIG_ENDIAN
#define rmask 0xff000000 //!< SDL red mask
#define gmask 0x00ff0000 //!< SDL green mask
#define bmask 0x0000ff00 //!< SDL blue mask
#define amask 0x000000ff //!< SDL alpha mask
#else
#define rmask 0x000000ff //!< SDL red mask
#define gmask 0x0000ff00 //!< SDL green mask
#define bmask 0x00ff0000 //!< SDL blue mask
#define amask 0xff000000 //!< SDL alpha mask
#endif
// Hold off on gettext until we decide if we are really going to
// use it from within t4kcommon - DSB
//#define _(String) String
// #define _(String) gettext (String)
#ifndef bool
typedef enum
{
false,
true
}
bool;
#endif
// Debug macros
#define DEBUGCODE(mask) if((mask) & debug_status)
#define DEBUGMSG(mask, ...) \
if((mask) & debug_status) \
{ \
fprintf(stderr, __VA_ARGS__); fflush(stderr); \
}
// These values have to match those used in games.
static const int debug_loaders = 1 << 0; //!< Debug image loading code
static const int debug_menu = 1 << 1; //!< Debug menu code
static const int debug_menu_parser = 1 << 2; //!< Debug XML parsing for menus
static const int debug_sdl = 1 << 3; //!< Debug image txf and other support code
static const int debug_linewrap = 1 << 4; //!< Debug for linewrap functions
static const int debug_i18n = 1 << 5; //!< Debug for gettext and UTF conversions
static const int debug_all = ~0; //!< Enable all debugging output (messy!)
extern int debug_status;
//!
//! Games defining custom debug flags should use this constant to ensure
//! consistency with t4k_common values.
//!
//! For example: <code><pre>
//! const int debug_something_of_mine = 1 << START_CUSTOM_DEBUG;
//! const int debug_something_else = 2 << START_CUSTOM_DEBUG;
//! const int debug_some_more_stuff = 4 << START_CUSTOM_DEBUG;
//! </pre></code>
//!
#define START_CUSTOM_DEBUG 4
// FIXME: global vars such as screen should be hidden when all games
// are using only getters (such as GetScreen() )
extern SDL_Surface* screen;
extern SDL_Rect menu_rect, stop_rect, prev_rect, next_rect;
extern SDL_Surface *stop_button, *prev_arrow, *next_arrow, *prev_gray, *next_gray;
#define MAX_SPRITE_FRAMES 15 /**< The max number of images a single sprite can use */
//!
//! \struct
//! sprite
//!
//! \brief
//! An animated sprite using a collection of SDL_Surfaces.
//!
typedef struct
{
SDL_Surface *frame[MAX_SPRITE_FRAMES];
SDL_Surface *default_img;
int num_frames;
int cur;
}
sprite;
//==============================================================================
//!
//! \enum
//! WipeStyle
//!
//! \brief
//! Different transition effects used by TransWipe().
//!
typedef enum
{
WIPE_BLINDS_VERT,
WIPE_BLINDS_HORIZ,
WIPE_BLINDS_BOX,
RANDOM_WIPE,
NUM_WIPES
}
WipeStyle;
//!
//! Special values used by RunMenu.
//!
enum
{
RUN_MAIN_MENU = -3, //!< can be used in .xml menu structures but should not be declared in activities' lists.
QUIT = -2, //!< user decided to quit application
STOP = -1 //!< user pressed the stop button
};
//!
//! Strategies for determining menu font sizes.
//!
typedef enum
{
MF_UNIFORM, //!< All menus are searched and the largest size that will fit on all menus is used.
MF_BESTFIT, //!< Menus are searched separately for the largest fonts they can accommodate.
MF_EXACTLY //!< The font size given is used directly; text may run off the screen.
}
MFStrategy;
// from tk4_loaders.c
#define IMG_REGULAR 0x01
#define IMG_COLORKEY 0x02
#define IMG_ALPHA 0x04
#define IMG_MODES 0x07
#define IMG_NOT_REQUIRED 0x10
#define IMG_NO_PNG_FALLBACK 0x20
#define MAX_LINES 128 //!< Maximum lines to wrap.
#define MAX_LINEWIDTH 256 //!< Maximum characters of each line.
char wrapped_lines[MAX_LINES][MAX_LINEWIDTH]; //!< Global buffer for wrapped lines.
//TODO separate headers for different areas a la SDL?
//==============================================================================
// Public Definitions in t4k_main.c
//==============================================================================
//==============================================================================
//
// InitT4KCommon
//
//! \brief
//! Initialize Tux4Kids-Common
//!
//! \param
//! debug_flags - The flags used for debugging output.
//!
//! Games may define their own debug flags, but several are available
//! by default:
//! - debug_loaders
//! - debug_menu
//! - debug_menu_parser
//! - debug_sdl
//! - debug_all
//!
//! \return
//! None
//!
void InitT4KCommon( int debug_flags );
//==============================================================================
//
// T4K_HandleStdEvents
//
//! \brief
//! Handle events that should have consistent effects everywhere
//! in the program.
//!
//! \param
//! event - the event to check
//!
//! \return
//! 0 - if no action is necessary
//! \return
//! 1 - if the screen should be redrawn
//!
int T4K_HandleStdEvents( const SDL_Event* event );
//==============================================================================
// Public Definitions in t4k_menu.c
//==============================================================================
//==============================================================================
//
// T4K_SetActivitiesList
//
//! \brief
//! Specify the set of activities the menu system should handle.
//!
//! \param
//! num - The number of activities. acts should have num elements.
//! \param
//! acts - An array of strings, each an activity provided by the game.
//!
//! \return
//! None
//!
void T4K_SetActivitiesList( int num,
char** acts
);
//==============================================================================
//
// T4K_SetMenuSounds
//
//! \brief
//! Set optional sound effects and music for menus.
//!
//! \param
//! mus_path - The path to background music. *NOT* used!
//! \param
//! click - The sound effect to play when an item is clicked
//! \param
//! hover - The sound effect to play when an item is highlighted
//!
//! \return
//! None
//!
void T4K_SetMenuSounds( char* mus_path,
Mix_Chunk* click,
Mix_Chunk* hover
);
//==============================================================================
//
// T4K_SetMenuSpritePrefix
//
//! \brief
//! Set the prefix that is used whe loading menu sprites.
//!
//! \param
//! pref - The prefix that is used whe loading menu sprites.
//!
//! \return
//! None
//!
void T4K_SetMenuSpritePrefix( char* pref );
//==============================================================================
//
// T4K_SetMenuFontSize
//
//! \brief
//! Set the font size for managed menus.
//!
//! \param
//! strategy - How to determine menus' font size
//! \param
//! size - A literal size to use. This will be ignored unless
//! strategy is MF_EXACTLY.
//!
//! \return
//! None
//!
void T4K_SetMenuFontSize( MFStrategy strategy,
int size
);
//==============================================================================
//
// T4K_CreateOneLevelMenu
//
//! \brief
//! Dynamically create a simple menu. All given strings are copied.
//!
//! \param
//! index - The unique index of the menu.
//! \param
//! items - The number of items in the menu.
//! \param
//! item_names - The name of the items
//! \param
//! sprite_names - The name of sprite or icon.
//! \param
//! title - The title of the menu.
//! \param
//! trailer - An optional item appended to the end of item_names.
//!
//! \return
//! None
//!
void T4K_CreateOneLevelMenu( int index,
int items,
char** item_names,
char** sprite_names,
char* title,
char* trailer
);
//==============================================================================
//
// T4K_RunMenu
//
//! \brief
//! RunMenu - main function to display the menu and run the event loop
//! this function is a modified copy of choose_menu_item()
//!
//! \param
//! index - The unique index of the menu.
//! \param
//! return_choice - If true, then return chosen value instead of
//! running handle_activity().
//! \param
//! draw_background - A function that draws game-specific items,
//! called once per frame.
//! \param
//! handle_event - A function to process game-specific events.
//! \param
//! handle_animations - A function to animate game-specific items.
//! \param
//! handle_activity - A function to start an activity when the user
//! selects it.
//!
//! \return
//! Returns a value operation of the user in the menu.
//!
int T4K_RunMenu( int index,
bool return_choice,
void (*draw_background)(),
int (*handle_event)(SDL_Event*),
void (*handle_animations)(),
int (*handle_activity)(int, int)
);
//==============================================================================
//
// T4K_PrerenderMenu
//
//! \brief
//! Prerender a single menu based on the screen resolution.
//!
//! \param
//! index - The unique index of the menu.
//!
//! \return
//! None
//!
void T4K_PrerenderMenu( int index );
//==============================================================================
//
// T4K_PrerenderAll
//
//! \brief
//! Prerender all menus, arrows and stop button.
//! This function should be invoked after every resolution change.
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_PrerenderAll( void );
//==============================================================================
//
// T4K_LoadMenu
//
//! \brief
//! Load menu from given XML file and store its tree under given
//! index in "menus" array.
//!
//! \param
//! index - The unique index of the menu.
//! \param
//! file_name - The file name of the xml menu file.
//!
//! \return
//! None
//!
void T4K_LoadMenu( int index,
const char* file_name
);
//==============================================================================
//
// T4K_UnloadMenus
//
//! \brief
//! free all loaded menu trees
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_UnloadMenus( void );
//==============================================================================
// Public Definitions in tk4_sdl.c
//==============================================================================
//==============================================================================
//
// T4K_GetScreen
//
//! \brief
//! Return a pointer to the screen we're using, as an alternative
//! to making screen a global variable.
//!
//! \param
//! None
//!
//! \return
//! The surface of the screen.
//!
SDL_Surface* T4K_GetScreen( void );
//==============================================================================
//
// T4K_GetResolutions
//
//! \brief
//! Provide current values of x and y resolutions for windowed and
//! fullscreen modes.
//!
//! \param
//! win_x - Will hold the width of windowed resolution.
//! \param
//! win_y - Will hold the height of windowed resolution.
//! \param
//! full_x - Will hold the width of fullscreen resolution.
//! \param
//! full_y - Will hold the height of fullscreen resolution.
//!
//! \return
//! 1 - Successfull call of the function.
//! \return
//! 0 - Failed operation.
//!
int T4K_GetResolutions( int* win_x,
int* win_y,
int* full_x,
int* full_y
);
//==============================================================================
//
// T4K_DrawButton
//
//! \brief
//! Creates a translucent button with rounded ends and draws it on the
//! screen. All colors and alpha values are supported. This is
//! equivalent to <code>T4K_DrawButtonOn(T4K_GetScreen());</code>
//!
//! \param
//! target_rect - The bounding rectangle for the button.
//! \param
//! radius - The radius of the arcs on each corner.
//! A smaller radius results in sharper edges.
//! \param
//! r - R component of the button's color.
//! \param
//! g - G component of the button's color.
//! \param
//! b - B component of the button's color.
//! \param
//! a - The opacity of the button.
//!
//! \return
//! None
//!
void T4K_DrawButton( SDL_Rect* target_rect,
int radius,
Uint8 r,
Uint8 g,
Uint8 b,
Uint8 a
);
//==============================================================================
//
// T4K_DrawButtonOn
//
//! \brief
//! Creates a translucent button with rounded ends and draws it on
//! the given surface.
//! All colors and alpha values are supported.
//!
//! This function creates a temporary surface to blit onto target.
//! If performance is an issue, consider using T4K_CreateButton
//! to save the surface.
//!
//! \param
//! target - The SDL_Surface to draw on
//! \param
//! target_rect - the bounding rectangle for the button
//! \param
//! radius - The radius of the arcs on each corner.
//! A smaller radius results in sharper edges.
//! \param
//! r - R component of the button's color
//! \param
//! g - G component of the button's color
//! \param
//! b - B component of the button's color
//! \param
//! a - The opacity of the button
//!
//! \return
//! None
//!
void T4K_DrawButtonOn( SDL_Surface* target,
SDL_Rect* target_rect,
int radius,
Uint8 r,
Uint8 g,
Uint8 b,
Uint8 a
);
//==============================================================================
//
// T4K_CreateButton
//
//! \brief
//! Creates a translucent button with rounded ends
//! All colors and alpha values are supported.
//!
//! \param
//! w - The width of the button
//! \param
//! h - The height of the button
//! \param
//! radius - The radius of the arcs on each corner.
//! A smaller radius results in sharper edges.
//! \param
//! r - R component of the button's color
//! \param
//! g - G component of the button's color
//! \param
//! b - B component of the button's color
//! \param
//! a - The opacity of the button
//!
//! \return
//! Surface of the translucent button with no text
//!
SDL_Surface* T4K_CreateButton( int w,
int h,
int radius,
Uint8 r,
Uint8 g,
Uint8 b,
Uint8 a
);
//==============================================================================
//
// T4K_RoundCorners
//
//! \brief
//! Round the corners of a surface by erasing edge pixels.
//!
//! \param
//! s - The surface to process.
//! \param
//! radius - The radius of the arcs on each corner.
//! A smaller radius results in sharper edges.
//!
//! \return
//! None
//!
void T4K_RoundCorners( SDL_Surface* s,
Uint16 radius
);
//==============================================================================
//
// T4K_Flip
//
//! \brief
//! Flip a surface vertically or horizontally.
//!
//! \param
//! in - The source surface
//! \param
//! x - if nonzero, the image will be flipped horizontally
//! \param
//! y - if nonzero, the image will be flipped vertically
//!
//! \return
//! Returns flipped surface.
//!
SDL_Surface* T4K_Flip( SDL_Surface* in,
int x,
int y
);
//==============================================================================
//
// T4K_Blend
//
//! \brief
//! Blend two surfaces together. The third argument is between 0.0 and
//! 1.0, and represents the weight assigned to the first surface. If
//! the pointer to the second surface is NULL, this performs fading.
//!
//! Currently this works only with RGBA images, but this is largely to
//! make the (fast) pointer arithmetic work out; it could be easily
//! generalized to other image types.
//!
//! \param
//! S1 - The first surface
//! \param
//! S2 - The second surface
//! \param
//! gamma - A value between 0.0 and 1.0, representing the weight
//! assigned to the first surface.
//!
//! \return
//! If successfull, it will returns the new blended surface
//! otherwise it will return a NULL value.
//!
SDL_Surface* T4K_Blend( SDL_Surface* S1,
SDL_Surface* S2,
float gamma
);
//==============================================================================
//
// T4K_FreeSurfaceArray
//
//! \brief
//! Free every surface in the array together with the array itself.
//!
//! \param
//! surfs - An array of SDL_Surface pointers to free.
//! \param
//! length - The size of the array.
//!
//! \return
//! None
//!
void T4K_FreeSurfaceArray( SDL_Surface** surfs,
int length
);
//==============================================================================
//
// T4K_inRect
//
//! \brief
//! Tells whether the point (x, y) is inside the SDL_Rect r.
//!
//! \param
//! r - The bounding rect.
//! \param
//! x - The x coordinate to test.
//! \param
//! y - The y coordinate to test.
//!
//! \return
//! 1 - The x and y are inside of the SDL_Rect r.
//! \return
//! 0 - The x and y are outside of the SDL_Rect r.
//!
int T4K_inRect( SDL_Rect r,
int x,
int y
);
//==============================================================================
//
// T4K_SetRect
//
//! \brief
//! This function will write an SDL_Rect with dimensions based
//! on screen dimensions.
//!
//! \param
//! rect - A pointer to the rect to fill.
//! \param
//! pos - Four floats between 0.0 and 1.0 which specify
//! the desired x, y, w and h as a percentage of
//! screen dimensions.
//!
//! \return
//! None
//!
void T4K_SetRect( SDL_Rect* rect,
const float* pos
);
//==============================================================================
//
// T4K_UpdateRect
//
//! \brief
//! Wrap a call to SDL_UpdateRect.
//!
//! \param
//! surf - The surface to update.
//! \param
//! rect - The dimension of the surface to update.
//!
//! \return
//! None
//!
void T4K_UpdateRect( SDL_Surface* surf,
SDL_Rect* rect
);
//==============================================================================
//
// T4K_DarkenScreen
//
//! \brief
//! Darkens the screen by a factor of 2^bits.
//!
//! \param
//! bits - An exponent between 1 and 8. Realistically,
//! 1 and 2 are the only useful values.
//!
//! \return
//! None
//!
void T4K_DarkenScreen( Uint8 bits );
//==============================================================================
//
// T4K_ChangeWindowSize
//
//! \brief
//! This function will change window size (unstable, works only
//! in windowed mode).
//!
//! \param
//! new_res_x - The new width of the window.
//! \param
//! new_res_y - The new height of the window.
//!
//! \return
//! None
//!
void T4K_ChangeWindowSize( int new_res_x,
int new_res_y
);
//==============================================================================
//
// T4K_SwitchScreenMode
//
//! \brief
//! Switch between fullscreen and windowed mode.
//! Resolution switching callbacks are invoked.
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_SwitchScreenMode( void );
//==============================================================================
//
//! A function to handle a resolution switch, which should take
//! parameters for the new horizontal and vertical screen dimensions.
//!
typedef void (*ResSwitchCallback)(int resx, int resy);
//==============================================================================
//
// T4K_OnResolutionSwitch
//
//! \brief
//! Register a callback to reposition and redraw screen elements when
//! the resolution is changed.
//!
//! \param
//! callback - A function to be called when resolution changes.
//!
//! \return
//! None
//!
void T4K_OnResolutionSwitch( ResSwitchCallback callback );
//==============================================================================
//
// T4K_WaitForEvent
//
//! \brief
//! Block application until SDL receives an appropriate event.
//! Use sparingly.
//!
//! \param
//! events - A single or OR'd combination of event masks.
//!
//! \return
//! The event type received.
//!
SDL_EventType T4K_WaitForEvent( SDL_EventMask events );
//==============================================================================
//
// T4K_zoom
//
//! \brief
//! This function will scale an existing surface.
//!
//! \param
//! src - The original surface, which is left unscathed.
//! \param
//! new_w - The width of the new surface.
//! \param
//! new_h - The height of the new surface.
//!
//! \return
//! Will return a newly allocated SDL_Surface.
//!
SDL_Surface* T4K_zoom( SDL_Surface* src,
int new_w,
int new_h
);
//==============================================================================
//
// T4K_TransWipe
//
//! \brief
//! Perform a wipe from the current screen image to a new one.
//!
//! \param
//! newbkg - The new image to wipe.
//! \param
//! type - The WipeStyle to use.
//! \param
//! segments - The number of division of the screen.
//! \param
//! duration - The length of the animation in milliseconds.
//!
//! \return
//! Return 0 if newbkg is NULL and new background surface width and height
//! is not equal to screen width and height otherwise returns 1.
//!
int T4K_TransWipe( const SDL_Surface* newbkg,
WipeStyle type,
int segments,
int duration
);
//==============================================================================
//
// T4K_InitBlitQueue
//
//! \brief
//! Initialize the blit queue system. This must be called before
//! T4K_ResetBlitQueue,
//! T4K_AddRect,
//! T4K_DrawSprite,
//! T4K_DrawObject,
//! T4K_EraseObject,
//! T4K_EraseSprite or
//! T4K_UpdateScreen
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_InitBlitQueue( void );
//==============================================================================
//
// T4K_ResetBlitQueue
//
//! \brief
//! Just set the number of pending updates to zero.
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_ResetBlitQueue( void );
//==============================================================================
//
// T4K_AddRect
//
//! \brief
//! Don't actually blit a surface, but add a rect to be updated
//! next update.
//!
//! \param
//! src - The source dimension of the screen.
//! \param
//! dst - The destination dimension of the screen.
//!
//! \return
//! 1 - Add SDL_Rect successful.
//! \return
//! 0 - If invalid parameter and add SDL_Rect failed.
//!
int T4K_AddRect( SDL_Rect* src,
SDL_Rect* dst
);
//==============================================================================
//
// T4K_DrawSprite
//
//! \brief
//! This function will draw the sprite in the screen.
//! \param
//! gfx - Holds the sprite object.
//! \param
//! x - The x position to draw the sprite.
//! \param
//! y - The y position to draw the sprite.
//!
//! \return
//! 1 - Successful draw of the sprite.
//! \return
//! 0 - Failed to draw the sprite.
//!
int T4K_DrawSprite( sprite* gfx,
int x,
int y
);
//==============================================================================
//
// T4K_DrawObject
//
//! \brief
//! Draw an object at the specified location. No respect to clipping.
//!
//! \param
//! surf - Holds the surface to draw.
//! \param
//! x - The x position to draw the object.
//! \param
//! y - The y position to draw the object.
//!
//! \return
//! 1 - Successful draw of the object.
//! \return
//! 0 - Failed to draw the object.
//!
int T4K_DrawObject( SDL_Surface* surf,
int x,
int y
);
//==============================================================================
//
// T4K_UpdateScreen
//
//! \brief
//! Update the screen and increment the frame counter.
//!
//! \param
//! frame - Increments every update of the screen.
//!
//! \return
//! None
//!
void T4K_UpdateScreen( int* frame );
//==============================================================================
//
// T4K_EraseSprite
//
//! \brief
//! Basically puts in an order to overdraw sprite
//! with corresponding rect of bkgd img.
//!
//! \param
//! img - Sprite to delete.
//! \param
//! curr_bkgd - Surface of the background.
//! \param
//! x - x coordinate
//! \param
//! y - y coordinate
//!
//! \return
//! 1 - Successful erase of the spriate.
//! \return
//! 0 - Failed to erase the sprite.
//!
int T4K_EraseSprite( sprite* img,
SDL_Surface* curr_bkgd,
int x,
int y
);
//==============================================================================
//
// T4K_EraseObject
//
//! \brief
//! Erase an object from the screen.
//!
//! \param
//! surf - Surface to delete
//! \param
//! curr_bkgd - Current background
//! \param
//! x - x coordinate
//! \param
//! y - y coordinate
//!
//! \return
//! 1 - Successful operation
//! \return
//! 0 - Failed operation
//!
int T4K_EraseObject( SDL_Surface* surf,
SDL_Surface* curr_bkgd,
int x,
int y
);
//==============================================================================
//
// T4K_SetFontName
//
//! \brief
//! Set the "global" font name.
//!
//! \param
//! name - Name of the font to set.
//!
//! \return
//! None
//!
void T4K_SetFontName( const char* name );
//==============================================================================
//
// T4K_AskFontName
//
//! \brief
//! Get the "global" font name.
//!
//! \param
//! None
//!
//! \return
//! Returns the "global" font name.
//!
const char* T4K_AskFontName( void );
//==============================================================================
//
// T4K_Setup_SDL_Text
//
//! \brief
//! Initialize the backend (Pango or TTF) used for text-drawing functions.
//!
//! \param
//! None
//!
//! \return
//! 1 - Successful initialization fo the text-drawing backend.
//! \return
//! 0 - Failed initialization.
//!
int T4K_Setup_SDL_Text( void );
//==============================================================================
//
// T4K_Cleanup_SDL_Text
//
//! \brief
//! Shut down the backend used for text-drawing functions.
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_Cleanup_SDL_Text( void );
//==============================================================================
//
// T4K_BlackOutline
//
//! \brief
//! T4K_BlackOutline() creates a surface containing text of the designated
//! foreground color, surrounded by a black shadow, on a transparent
//! background. The appearance can be tuned by adjusting the number of
//! background copies and the offset where the foreground text is
//! finally written (see below).
//!
//! \param
//! t - The text to draw
//! \param
//! size - the font size to use
//! \param
//! c - the fill color to use
//!
//! \return
//! Returns newly created surface.
//!
SDL_Surface* T4K_BlackOutline( const char* t,
int size,
SDL_Color* c
);
//==============================================================================
//
// T4K_SimpleText
//
//! \brief
//! Returns a non-outlined surface using either SDL_Pango or SDL_ttf.
//!
//! \param
//! t - String to draw.
//! \param
//! size - Font size
//! \param
//! col - Color
//!
//! \return
//! A non-outlined surface using either SDL_Pango or SDL_ttf.
//!
SDL_Surface* T4K_SimpleText( const char* t,
int size,
SDL_Color* col
);
//==============================================================================
//
// T4K_SimpleTextWithOffset
//
//! \brief
//! Same as T4K_SimpleText, but the text offset is also stored.
//!
//! \param
//! t - String to draw.
//! \param
//! size - Font size
//! \param
//! col - Color
//! \param
//! glyph_off - Set the var in which to store the offset.
//!
//! \return
//! A non-outlined surface using either SDL_Pango or SDL_ttf.
//!
SDL_Surface* T4K_SimpleTextWithOffset( const char* t,
int size,
SDL_Color* col,
int* glyph_offset
);
//==============================================================================
// T4K_CharsForWidth
//
//! \brief
//! Calculate how long a string for a given fontsize will fit within a
//! given pixel width. The estimate is based on strings of 'x'.
//!
//! \param
//! fontsize - Font size
//! \param
//! pixel_width - Width in pixels of the desired text box
//! \return
//! strlen() of the longest string of 'x' that fits
//!
int T4K_CharsForWidth( int fontsize,
int pixel_width
);
//==============================================================================
// Public Definitions in t4k_loaders.c
//==============================================================================
//==============================================================================
//
// T4K_AddDataPrefix
//
//! \brief
//! Add a directory that should be searched when loading assets.
//!
//! \param
//! path - Directory path to set as prefix of the data.
//!
//! \return
//! None
//!
void T4K_AddDataPrefix( const char* path );
//==============================================================================
//
// T4K_CheckFile
//
//! \brief
//! Check whether a file exists.
//!
//! \param
//! file - File to check.
//!
//! \return
//! 1 - The file is valid.
//! \return
//! 0 - The file is not valid.
//!
int T4K_CheckFile( const char* file );
//==============================================================================
//
// T4K_RemoveSlash
//
//! \brief
//! Remove a trailing slash from a file path.
//!
//! \param
//! path - A path that may or may not end in a slash.
//!
//! \return
//! A path that does not end in a slash.
//!
char* T4K_RemoveSlash( char *path );
//==============================================================================
//
// T4K_LoadImage
//
//! \brief
//! Load an image without resizing it
//!
//! \param
//! file_name - File name of the image.
//! \param
//! mode - Image mode.
//!
//! \return
//! If successful it will return the newly created surface
//! otherwise it will return a NULL value.
//!
SDL_Surface* T4K_LoadImage( const char* file_name,
int mode
);
//==============================================================================
//
// T4K_LoadScaledImage
//
//! \brief
//! Load an image and resize it to given dimensions.
//! If width or height is negative no resizing is applied.
//!
//! The loader backend is chosen depending on file extension,
//! If an SVG file is not found, try to load its PNG equivalent
//! (unless IMG_NO_PNG_FALLBACK is set in mode)
//!
//! \param
//! file_name - File name of the image.
//! \param
//! mode - Image Mode
//! \param
//! width - Width size of the image.
//! \param
//! height - Height size of the image.
//!
//! \return
//! If successful it will return the newly created surface
//! otherwise it will return a NULL value.
//!
SDL_Surface* T4K_LoadScaledImage( const char* file_name,
int mode,
int width,
int height
);
//==============================================================================
//
// T4K_LoadImageOfBoundingBox
//
//! \brief
//! Same as LoadScaledImage but preserve image proportions
//! and fit it into max_width x max_height rectangle.
//!
//! NOTE: Returned surface is not necessarily max_width x max_height!
//!
//! \param
//! file_name - File name of the image.
//! \param
//! mode - Image modes.
//! \param
//! max_width - Max size of width of image.
//! \param
//! max_height - Max size of height of image.
//!
//! \return
//! If successful it will return the newly created surface
//! otherwise it will return a NULL value.
//!
SDL_Surface* T4K_LoadImageOfBoundingBox( const char* file_name,
int mode,
int max_width,
int max_height
);
//=============================================================================
//
// T4K_LoadBkgd
//
//! \brief
//! A wrapper for LoadImage() that optimizes
//! the format of background image.
//!
//! \param
//! file_name - File name of background image.
//! \param
//! width - Width of the image.
//! \param
//! height - Height of the image.
//!
//! \return
//! If successful it will return the newly created surface
//! otherwise it will return a NULL value.
//!
SDL_Surface* T4K_LoadBkgd( const char* file_name,
int width,
int height
);
//=============================================================================
//
// T4K_LoadBothBkgds
//
//! \brief
//! Load backgrounds for both fullscreen and windowed resolution.
//!
//! \param
//! file_name - File name of background image.
//! \param
//! fs_bkgd - Fullscreen surface.
//! \param
//! win_bkgd - Windowed surface
//!
//! \return
//! 1 - Successful loading of background.
//! \return
//! 0 - Failed loading of background.
//!
int T4K_LoadBothBkgds( const char* file_name,
SDL_Surface** fs_bkgd,
SDL_Surface** win_bkgd
);
//==============================================================================
//
// T4K_LoadSprite
//
//! \brief
//! Load a multiple-frame sprite from disk.
//! This function loads an SVG sprite or multiple PNGs as needed.
//!
//! \param
//! name - The filename of the sprite to load,
//! <em>without</em> an extension.
//! \param
//! mode - Loader flags to use, semantics the same as LoadImage.
//!
//! \return
//! If successful it will return the loaded sprite, otherwise it will
//! return a NULL value.
//!
sprite* T4K_LoadSprite( const char* name,
int mode
);
//==============================================================================
//
// T4K_LoadScaledSprite
//
//! \brief
//! Load a multiple-frame sprite from disk and scale it to the
//! given dimensions. This function loads an SVG sprite or
//! multiple PNGs as needed.
//!
//! \param
//! name - The filename of the sprite to load,
//! <em>without</em> an extension.
//! \param
//! mode - Loader flags to use, semantics the same as LoadImage.
//! \param
//! width - Width of sprite.
//! \param
//! height - Height of sprite.
//!
//! \return
//! If successful it will return the loaded sprite, otherwise it will
//! return a NULL value.
//!
sprite* T4K_LoadScaledSprite( const char* name,
int mode,
int width,
int height
);
//==============================================================================
//
// T4K_LoadSpriteOfBoundingBox
//
//! \brief
//! Same as LoadScaledSprite but preserve image proportions
//! and fit it into max_width x max_height rectangle.
//! NOTE: Returned surface is not necessarily max_width x max_height !
//!
//! \param
//! name - The filename of the sprite to load,
//! <em>without</em> an extension.
//! \param
//! mode - Loader flags to use, semantics the same as LoadImage.
//! \param
//! max_width - Max width of sprite.
//! \param
//! max_height - Max height of sprite.
//!
//! \return
//! If successful it will return the loaded sprite, otherwise it will
//! return a NULL value.
//!
sprite* T4K_LoadSpriteOfBoundingBox( const char* name,
int mode,
int max_width,
int max_height
);
//==============================================================================
//
// T4K_FlipSprite
//
//! \brief
//! Flip (reflect) a sprite over one or both axes.
//!
//! \param
//! in - The original image
//! \param
//! X - If nonzero, the image is flipped horizontally.
//! \param
//! Y - If nonzero, the image is flipped vertically.
//!
//! \return
//! A newly allocated transformed sprite.
//!
//! \see
//! T4K_Flip
//!
sprite* T4K_FlipSprite ( sprite* in,
int X,
int Y
);
//==============================================================================
//
// T4K_FreeSprite
//
//! \brief
//! Free memory allocated for a loaded sprite.
//!
//! \param
//! gfx - The sprite to free.
//!
//! \return
//! None
//!
void T4K_FreeSprite( sprite* gfx );
//==============================================================================
//
// T4K_NextFrame
//
//! \brief
//! Advance a sprite's frame.
//!
//! \param
//! s - The sprite to advance.
//!
//! \return
//! None
//!
void T4K_NextFrame( sprite* s );
//==============================================================================
//
// T4K_LoadSound
//
//! \brief
//! Load a sound/music patch from a file.
//!
//! \param
//! datafile - File name of the sound data.
//!
//! \return
//! Returns new created sound effect.
//!
Mix_Chunk* T4K_LoadSound( char* datafile );
//==============================================================================
//
// T4K_LoadMusic
//
//! \brief
//! Load music from a datafile
//!
//! \param
//! datafile - File name of the music date.
//!
//! \return
//! Returns new created music.
//!
Mix_Music* T4K_LoadMusic( char *datafile );
//==============================================================================
// Public Definitions from t4k_audio.c
//==============================================================================
const static int T4K_AUDIO_PLAY_ONCE = 0;
const static int T4K_AUDIO_LOOP_FOREVER = -1;
//==============================================================================
//
// T4K_PlaySound
//
//! \brief
//! Play sound once and then exit.
//!
//! \param
//! sound - Sound effect to play.
//!
//! \return
//! None
//!
void T4K_PlaySound( Mix_Chunk* sound );
//==============================================================================
//
// T4K_PlaySoundLoop
//
//! \brief
//! Play sound "loops" times, -1 for infinite.
//!
//! \param
//! sound - Sound effect to play.
//! \param
//! loops - Number of repeats to play the sound.
//!
//! \return
//! None
//!
void T4K_PlaySoundLoop( Mix_Chunk* sound,
int loops
);
//==============================================================================
//
// T4K_AudioHaltChannel
//
//! \brief
//! Will stop the channel specified in channel. If -1 is passed as
//! the parameter to channel, all channels will be stopped.
//!
//! \param
//! channel - Parameter to stop.
//!
//! \return
//! None
//!
void T4K_AudioHaltChannel( int channel );
//==============================================================================
//
// T4K_AudioMusicLoad
//
//! \brief
//! Attempts to load and play the music file.
//!
//! \param
//! music_path - Path of the music file.
//! \param
//! loops - Number of loops.
//!
//! \return
//! None
//!
void T4K_AudioMusicLoad( char* music_path,
int loops
);
//==============================================================================
//
// T4K_AudioMusicUnload
//
//! \brief
//! Attempts to unload any music data that was
//! loaded using the audioMusicLoad function.
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_AudioMusicUnload( void );
//==============================================================================
//
// T4K_IsPlayingMusic
//
//! \brief
//! This function will check if a music is currently playing.
//!
//! \param
//! None
//!
//! \return
//! true - If a music is currently playing.
//! \return
//! false - If a music is not playing.
//!
bool T4K_IsPlayingMusic( void );
//==============================================================================
//
// T4K_AudioMusicPlay
//
//! \brief
//! attempts to play the passed music data, stopping current music if necessary
//!
//! \param
//! musicData - Data of music.
//! \param
//! loops - The number of times to loop, or -1 forever
//!
//! \return
//! None
//!
void T4K_AudioMusicPlay( Mix_Music* musicData,
int loops
);
//==============================================================================
//
// T4K_AudioEnable
//
//! \brief
//! Enable/disable sound
//!
//! \param
//! enabled - Set true if Audio is enabled or false to disable
//! the audition.
//!
//! \return
//! None
//!
void T4K_AudioEnable( bool enabled );
//==============================================================================
//
// T4K_AudioToggle
//
//! \brief
//! Toggle sound enablement.
//!
//! \param
//! None
//!
//! \return
//! None
//!
void T4K_AudioToggle( void );
//=============================================================================
// Public Definitions for t4k_linewrap.c
//=============================================================================
//=============================================================================
//
// T4K_LineWrap
//
//! \brief
//! This function takes an input string (can be in essentially arbitrary
//! encoding) and loads it into an array of strings, each corresponding
//! to one line of output text.
//!
//! \param
//! input - A null-terminated input string.
//! \param
//! str_list - A PRE_ALLOCATED array of characters pointers. This
//! must be at least of size str_list[max_lines][max_width]
//! \param
//! width - The desired number of characters per line. Note that
//! words with more characters than "width" are not
//! hypenated, so it's possible to get a line that is
//! longer than "width".
//! \param
//! max_lines - Memory-safety parameters for str_list.
//! \param
//! max_width - Memory-safety parameters for str_list.
//!
//! \return
//! Linewrap returns the number of lines used to format the strings.
//!
int T4K_LineWrap( const char* input,
char str_list[MAX_LINES][MAX_LINEWIDTH],
int width,
int max_lines,
int max_width
);
//=============================================================================
//
// T4K_LineWrapInsBreaks
//
//! \brief
//! This function takes an input string and inserts newline characters at
//! places determined by the linebreak library, returning a single string.
//!
//! \param
//! input - A null-terminated input string.
//! \para
//! output - Pre-allocated location to contain string with breaks
//! inserted.
//! \param
//! width - The desired number of characters per line. Note that
//! words with more characters than "width" are not
//! hypenated, so it's possible to get a line that is
//! longer than "width".
//! \param
//! max_lines - Memory-safety parameters for str_list.
//! \param
//! max_width - Memory-safety parameters for str_list.
//!
//! \return
//! Linewrap returns the number of lines used to format the strings.
//!
int T4K_LineWrapInsBreaks( const char* input,
char* output,
int width,
int max_lines,
int max_width
);
//=============================================================================
//
// T4K_LineWrapList
//
//! /brief
//! This function takes a NULL_terminated array of strings and performs
//! translations and linewrapping, outputting another NULL-terminated
//! array.
//!
//! /param
//! input - A null-terminated input string.
//! /param
//! str_list - A PRE_ALLOCATED array of characters pointers. This
//! must be at least of size str_list[max_lines][max_width]
//! /param
//! width - The desired number of characters per line. Note that
//! words with more characters than "width" are not
//! hypenated, so it's possible to get a line that is
//! longer than "width".
//! /param
//! max_lines - Memory-safety parameters for str_list.
//! /param
//! max_width - Memory-safety parameters for str_list.
//!
//! /return
//! None
//!
void T4K_LineWrapList( const char input[MAX_LINES][MAX_LINEWIDTH],
char str_list[MAX_LINES][MAX_LINEWIDTH],
int width,
int max_lines,
int max_width
);
//=============================================================================
// Public Definitions for t4k_throttle.c
//=============================================================================
//=============================================================================
//
// T4K_Throttle
//
//! /brief
//! Use this simple function to keep a loop from eating all CPU.
//! Here we use SDL_Delay() to wait to return until 'loop_msec'
//! milliseconds after it returned the last time. Per SDL docs,
//! the granularity is likely no better than 10 msec
//!
//! /param
//! loop_msec - The desired loop duration, in msec
//! /param
//! last_t - The valid location of a Uint32 where timing can be
//! stored between invocations of this function.
//!
//! /return
//! None
//!
void T4K_Throttle( int loop_msec,
Uint32* last_t
);
#endif
//=============================================================================
// Public Definitions for t4k_convert_utf.c
//=============================================================================
//=============================================================================
//
// T4K_ConvertFromUTF8
//
//! /brief
//! A simple wrapper for using GNU iconv() to convert UTF-8 text to wchar_t
//! ("Unicode") text.
//! /param
//! wide_word - ptr to wchar_t buffer to contain converted text.
//! /param
//! UTF8_word - ptr to UTF-8 string to be converted.
//! /param
//! max_length - generally the length of the output buffer to avoid
//! overflow. It also must be no greater than the buffer
//! length used internally in this function (i.e.
//! UTF_BUF_LENGTH, currently 1024).
//!
//! /return
//! Returns the length of the wchar_t string generated, 0 on errors.
//!
int T4K_ConvertFromUTF8(wchar_t* wide_word,
const char* UTF8_word,
int max_length
);
//=============================================================================
//
// T4K_ConvertToUTF8
//
//! /brief
//! A simple wrapper for using GNU iconv() to convert wchar_t
//! ("Unicode") text to UTF-8 text.
//! /param
//! wide_word - ptr to wchar_t string to be converted.
//! /param
//! UTF8_word - ptr to buffer to hold UTF-8 string after conversion.
//! /param
//! max_length - generally the length of the output buffer to avoid
//! overflow. It also must be no greater than the buffer
//! length used internally in this function (i.e.
//! UTF_BUF_LENGTH, currently 1024).
//!
//! /return
//! Returns the length of the UTF-8 string generated, 0 on errors.
//!
int T4K_ConvertToUTF8(const wchar_t* wide_word,
char* UTF8_word,
int max_length
);
|