324 lines
13 KiB
C
324 lines
13 KiB
C
/* BSD 3-Clause License
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*
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* Copyright © 2008-2022, Jice and the libtcod contributors.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of the copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef LIBTCOD_TILESET_H_
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#define LIBTCOD_TILESET_H_
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#include <stddef.h>
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#include "color.h"
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#include "config.h"
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#include "error.h"
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struct TCOD_Tileset;
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struct TCOD_TilesetObserver {
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struct TCOD_Tileset* tileset;
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struct TCOD_TilesetObserver* next;
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void* userdata;
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void (*on_observer_delete)(struct TCOD_TilesetObserver* observer);
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int (*on_tile_changed)(struct TCOD_TilesetObserver* observer, int tile_id);
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};
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/**
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@brief A container for libtcod tileset graphics.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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struct TCOD_Tileset {
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int tile_width;
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int tile_height;
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int tile_length;
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int tiles_capacity;
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int tiles_count;
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struct TCOD_ColorRGBA* __restrict pixels;
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int character_map_length;
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int* __restrict character_map;
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struct TCOD_TilesetObserver* observer_list;
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int virtual_columns;
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volatile int ref_count;
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};
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typedef struct TCOD_Tileset TCOD_Tileset;
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// clang-format off
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// Character maps are defined in this way so that the C and C++ API don't duplicate them.
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#define TCOD_CHARMAP_CP437_ {\
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0x0000, 0x263A, 0x263B, 0x2665, 0x2666, 0x2663, 0x2660, 0x2022,\
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0x25D8, 0x25CB, 0x25D9, 0x2642, 0x2640, 0x266A, 0x266B, 0x263C,\
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0x25BA, 0x25C4, 0x2195, 0x203C, 0x00B6, 0x00A7, 0x25AC, 0x21A8,\
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0x2191, 0x2193, 0x2192, 0x2190, 0x221F, 0x2194, 0x25B2, 0x25BC,\
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0x0020, 0x0021, 0x0022, 0x0023, 0x0024, 0x0025, 0x0026, 0x0027,\
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0x0028, 0x0029, 0x002A, 0x002B, 0x002C, 0x002D, 0x002E, 0x002F,\
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0x0030, 0x0031, 0x0032, 0x0033, 0x0034, 0x0035, 0x0036, 0x0037,\
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0x0038, 0x0039, 0x003A, 0x003B, 0x003C, 0x003D, 0x003E, 0x003F,\
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0x0040, 0x0041, 0x0042, 0x0043, 0x0044, 0x0045, 0x0046, 0x0047,\
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0x0048, 0x0049, 0x004A, 0x004B, 0x004C, 0x004D, 0x004E, 0x004F,\
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0x0050, 0x0051, 0x0052, 0x0053, 0x0054, 0x0055, 0x0056, 0x0057,\
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0x0058, 0x0059, 0x005A, 0x005B, 0x005C, 0x005D, 0x005E, 0x005F,\
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0x0060, 0x0061, 0x0062, 0x0063, 0x0064, 0x0065, 0x0066, 0x0067,\
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0x0068, 0x0069, 0x006A, 0x006B, 0x006C, 0x006D, 0x006E, 0x006F,\
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0x0070, 0x0071, 0x0072, 0x0073, 0x0074, 0x0075, 0x0076, 0x0077,\
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0x0078, 0x0079, 0x007A, 0x007B, 0x007C, 0x007D, 0x007E, 0x2302,\
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0x00C7, 0x00FC, 0x00E9, 0x00E2, 0x00E4, 0x00E0, 0x00E5, 0x00E7,\
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0x00EA, 0x00EB, 0x00E8, 0x00EF, 0x00EE, 0x00EC, 0x00C4, 0x00C5,\
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0x00C9, 0x00E6, 0x00C6, 0x00F4, 0x00F6, 0x00F2, 0x00FB, 0x00F9,\
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0x00FF, 0x00D6, 0x00DC, 0x00A2, 0x00A3, 0x00A5, 0x20A7, 0x0192,\
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0x00E1, 0x00ED, 0x00F3, 0x00FA, 0x00F1, 0x00D1, 0x00AA, 0x00BA,\
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0x00BF, 0x2310, 0x00AC, 0x00BD, 0x00BC, 0x00A1, 0x00AB, 0x00BB,\
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0x2591, 0x2592, 0x2593, 0x2502, 0x2524, 0x2561, 0x2562, 0x2556,\
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0x2555, 0x2563, 0x2551, 0x2557, 0x255D, 0x255C, 0x255B, 0x2510,\
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0x2514, 0x2534, 0x252C, 0x251C, 0x2500, 0x253C, 0x255E, 0x255F,\
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0x255A, 0x2554, 0x2569, 0x2566, 0x2560, 0x2550, 0x256C, 0x2567,\
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0x2568, 0x2564, 0x2565, 0x2559, 0x2558, 0x2552, 0x2553, 0x256B,\
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0x256A, 0x2518, 0x250C, 0x2588, 0x2584, 0x258C, 0x2590, 0x2580,\
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0x03B1, 0x00DF, 0x0393, 0x03C0, 0x03A3, 0x03C3, 0x00B5, 0x03C4,\
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0x03A6, 0x0398, 0x03A9, 0x03B4, 0x221E, 0x03C6, 0x03B5, 0x2229,\
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0x2261, 0x00B1, 0x2265, 0x2264, 0x2320, 0x2321, 0x00F7, 0x2248,\
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0x00B0, 0x2219, 0x00B7, 0x221A, 0x207F, 0x00B2, 0x25A0, 0x00A0,\
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}
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#define TCOD_CHARMAP_TCOD_ {\
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0x20, 0x21, 0x22, 0x23, 0x24, 0x25, 0x26, 0x27,\
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0x28, 0x29, 0x2A, 0x2B, 0x2C, 0x2D, 0x2E, 0x2F,\
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0x30, 0x31, 0x32, 0x33, 0x34, 0x35, 0x36, 0x37,\
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0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,\
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0x40, 0x5B, 0x5C, 0x5D, 0x5E, 0x5F, 0x60, 0x7B,\
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0x7C, 0x7D, 0x7E, 0x2591, 0x2592, 0x2593, 0x2502, 0x2500,\
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0x253C, 0x2524, 0x2534, 0x251C, 0x252C, 0x2514, 0x250C, 0x2510,\
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0x2518, 0x2598, 0x259D, 0x2580, 0x2596, 0x259A, 0x2590, 0x2597,\
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0x2191, 0x2193, 0x2190, 0x2192, 0x25B2, 0x25BC, 0x25C4, 0x25BA,\
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0x2195, 0x2194, 0x2610, 0x2611, 0x25CB, 0x25C9, 0x2551, 0x2550,\
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0x256C, 0x2563, 0x2569, 0x2560, 0x2566, 0x255A, 0x2554, 0x2557,\
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0x255D, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x41, 0x42, 0x43, 0x44, 0x45, 0x46, 0x47, 0x48,\
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0x49, 0x4A, 0x4B, 0x4C, 0x4D, 0x4E, 0x4F, 0x50,\
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0x51, 0x52, 0x53, 0x54, 0x55, 0x56, 0x57, 0x58,\
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0x59, 0x5A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x61, 0x62, 0x63, 0x64, 0x65, 0x66, 0x67, 0x68,\
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0x69, 0x6A, 0x6B, 0x6C, 0x6D, 0x6E, 0x6F, 0x70,\
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0x71, 0x72, 0x73, 0x74, 0x75, 0x76, 0x77, 0x78,\
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0x79, 0x7A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,\
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}
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// clang-format on
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/**
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A character mapping of a Code Page 437 tileset to Unicode.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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static const int TCOD_CHARMAP_CP437[256] = TCOD_CHARMAP_CP437_;
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/**
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A character mapping of a deprecated TCOD tileset to Unicode.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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static const int TCOD_CHARMAP_TCOD[256] = TCOD_CHARMAP_TCOD_;
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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/**
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Create a new tile-set with the given tile size.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC TCOD_Tileset* TCOD_tileset_new(int tile_width, int tile_height);
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/**
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Delete a tile-set.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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TCOD_PUBLIC void TCOD_tileset_delete(TCOD_Tileset* tileset);
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/**
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* Return the pixel width of tiles in this tileset.
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*
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* The tileset functions are provisional, the API may change in the future.
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC int TCOD_tileset_get_tile_width_(const TCOD_Tileset* tileset);
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/**
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* Return the pixel height of tiles in this tileset.
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*
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* The tileset functions are provisional, the API may change in the future.
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC int TCOD_tileset_get_tile_height_(const TCOD_Tileset* tileset);
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/**
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* Fetch a tile, outputting its data to a pixel buffer.
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*
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* `codepoint` is the index for the tile. Unicode is recommend.
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*
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* `buffer` is a pointer to a contiguous row-major array of pixels. The tile
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* data will be outputted here. This pointer can be NULL if you only want to
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* know if the tileset has a specific tile.
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*
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* Returns 0 if the tile exists. Returns a negative value on an error or if
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* the tileset does not have a tile for this codepoint.
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*
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* The tileset functions are provisional, the API may change in the future.
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC TCOD_Error
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TCOD_tileset_get_tile_(const TCOD_Tileset* __restrict tileset, int codepoint, struct TCOD_ColorRGBA* __restrict buffer);
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/**
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* Upload a tile from a pixel buffer into this tileset.
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*
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* `codepoint` is the index for the tile. Unicode is recommend.
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*
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* `buffer` is a pointer to a contiguous row-major array of pixels.
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* This can not be NULL.
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*
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* The tileset functions are provisional, the API may change in the future.
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC TCOD_Error
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TCOD_tileset_set_tile_(TCOD_Tileset* __restrict tileset, int codepoint, const struct TCOD_ColorRGBA* __restrict buffer);
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#ifndef TCOD_NO_PNG
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/**
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Load a PNG font as a tilesheet and return a TCOD_Tileset.
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`filename` is the path to a PNG file.
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`columns` and `rows` are the shape of the tileset in the image. The tile
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size will be derived from these parameters and the size of the image.
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`charmap[n]` is an array of which codepoints to assign to which tiles.
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Tiles are assigned in row-major order.
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`TCOD_CHARMAP_CP437` or `TCOD_CHARMAP_TCOD` could be used here.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC TCOD_Tileset* TCOD_tileset_load(
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const char* filename, int columns, int rows, int n, const int* __restrict charmap);
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/**
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Load a PNG font from memory and return a TCOD_Tileset.
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`buffer[buffer_length]` is the PNG data to load.
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The remaining parameters are the same as `TCOD_tileset_load`.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC TCOD_Tileset* TCOD_tileset_load_mem(
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size_t buffer_length, const unsigned char* buffer, int columns, int rows, int n, const int* __restrict charmap);
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#endif // TCOD_NO_PNG
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/**
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Load raw RGBA data and return a TCOD_Tileset.
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`pixels[width*height]` is a row-major RGBA-ordered byte array.
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The remaining parameters are the same as `TCOD_tileset_load`.
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\rst
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.. versionadded:: 1.19
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\endrst
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC TCOD_Tileset* TCOD_tileset_load_raw(
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int width,
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int height,
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const struct TCOD_ColorRGBA* __restrict pixels,
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int columns,
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int rows,
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int n,
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const int* __restrict charmap);
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/***************************************************************************
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@brief Assign a codepoint to an existing tile based on its tile ID.
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@param tileset A TCOD_Tileset pointer, must not be NULL.
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@param tile_id The index of the tile.
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@param codepoint The Unicode codepoint to associate with tile_id.
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@return Returns a negative value on error.
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC int TCOD_tileset_assign_tile(struct TCOD_Tileset* tileset, int tile_id, int codepoint);
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/**
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* Return a pointer to the tile for `codepoint`.
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*
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* Returns NULL if no tile exists for codepoint.
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*/
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TCOD_NODISCARD
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TCOD_PUBLIC const struct TCOD_ColorRGBA* TCOD_tileset_get_tile(const TCOD_Tileset* tileset, int codepoint);
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/**
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* Return a new observer to this tileset.
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*
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* For internal use.
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*/
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TCOD_NODISCARD
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struct TCOD_TilesetObserver* TCOD_tileset_observer_new(struct TCOD_Tileset* tileset);
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/**
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* Delete an existing observer.
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*
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* Will call this observers on_observer_delete callback.
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*
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* For internal use.
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*/
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void TCOD_tileset_observer_delete(struct TCOD_TilesetObserver* observer);
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/**
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* Called to notify any observers that a tile has been changed. This may
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* cause running atlases to update or mark cache consoles as dirty.
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*
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* For internal use.
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*/
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void TCOD_tileset_notify_tile_changed(TCOD_Tileset* tileset, int tile_id);
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/**
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* Reserve memory for a specific amount of tiles.
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*
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* For internal use.
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*/
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TCOD_NODISCARD
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TCOD_Error TCOD_tileset_reserve(TCOD_Tileset* tileset, int desired);
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#ifdef __cplusplus
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} // extern "C"
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#endif // __cplusplus
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#endif // LIBTCOD_TILESET_H_
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