217 lines
6.2 KiB
C
217 lines
6.2 KiB
C
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//-----------------------------------------------------------------------------
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//
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// Copyright (C) 1993-1996 by id Software, Inc.
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//
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// This source is available for distribution and/or modification
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// only under the terms of the DOOM Source Code License as
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// published by id Software. All rights reserved.
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//
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// The source is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// FITNESS FOR A PARTICULAR PURPOSE. See the DOOM Source Code License
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// for more details.
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//
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//-----------------------------------------------------------------------------
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/* Pure DOOM usage
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Do this:
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#define DOOM_IMPLEMENTATION
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before you include this file in *one* C or C++ file to create the implementation.
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// i.e. it should look like this:
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#include ...
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#include ...
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#include ...
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#define DOOM_IMPLEMENTATION
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#include "PureDOOM.h"
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*/
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//-----------------------------------------------------------------------------
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#ifndef __DOOM_H__
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#define __DOOM_H__
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// Sample rate of sound samples from doom
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#define DOOM_SAMPLERATE 11025
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// MIDI tick needs to be called 140 times per seconds
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#define DOOM_MIDI_RATE 140
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// Hide menu options. If for say your platform doesn't support mouse or
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// MIDI playback, you can hide these settings from the menu.
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#define DOOM_FLAG_HIDE_MOUSE_OPTIONS 1 // Remove mouse options from menu
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#define DOOM_FLAG_HIDE_SOUND_OPTIONS 2 // Remove sound options from menu
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#define DOOM_FLAG_HIDE_MUSIC_OPTIONS 4 // Remove music options from menu
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// Darken background when menu is open, making it more readable. This
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// uses a bit more CPU and redraws the HUD every frame
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#define DOOM_FLAG_MENU_DARKEN_BG 8
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#if __cplusplus
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extern "C" {
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#endif
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typedef enum
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{
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DOOM_SEEK_CUR = 1,
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DOOM_SEEK_END = 2,
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DOOM_SEEK_SET = 0
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} doom_seek_t;
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typedef void(*doom_print_fn)(const char* str);
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typedef void*(*doom_malloc_fn)(int size);
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typedef void(*doom_free_fn)(void* ptr);
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typedef void*(*doom_open_fn)(const char* filename, const char* mode);
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typedef void(*doom_close_fn)(void* handle);
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typedef int(*doom_read_fn)(void* handle, void *buf, int count);
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typedef int(*doom_write_fn)(void* handle, const void *buf, int count);
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typedef int(*doom_seek_fn)(void* handle, int offset, doom_seek_t origin);
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typedef int(*doom_tell_fn)(void* handle);
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typedef int(*doom_eof_fn)(void* handle);
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typedef void(*doom_gettime_fn)(int* sec, int* usec);
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typedef void(*doom_exit_fn)(int code);
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typedef char*(*doom_getenv_fn)(const char* var);
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// Doom key mapping
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typedef enum
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{
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DOOM_KEY_UNKNOWN = -1,
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DOOM_KEY_TAB = 9,
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DOOM_KEY_ENTER = 13,
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DOOM_KEY_ESCAPE = 27,
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DOOM_KEY_SPACE = 32,
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DOOM_KEY_APOSTROPHE = '\'',
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DOOM_KEY_MULTIPLY = '*',
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DOOM_KEY_COMMA = ',',
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DOOM_KEY_MINUS = 0x2d,
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DOOM_KEY_PERIOD = '.',
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DOOM_KEY_SLASH = '/',
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DOOM_KEY_0 = '0',
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DOOM_KEY_1 = '1',
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DOOM_KEY_2 = '2',
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DOOM_KEY_3 = '3',
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DOOM_KEY_4 = '4',
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DOOM_KEY_5 = '5',
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DOOM_KEY_6 = '6',
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DOOM_KEY_7 = '7',
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DOOM_KEY_8 = '8',
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DOOM_KEY_9 = '9',
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DOOM_KEY_SEMICOLON = ';',
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DOOM_KEY_EQUALS = 0x3d,
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DOOM_KEY_LEFT_BRACKET = '[',
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DOOM_KEY_RIGHT_BRACKET = ']',
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DOOM_KEY_A = 'a',
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DOOM_KEY_B = 'b',
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DOOM_KEY_C = 'c',
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DOOM_KEY_D = 'd',
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DOOM_KEY_E = 'e',
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DOOM_KEY_F = 'f',
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DOOM_KEY_G = 'g',
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DOOM_KEY_H = 'h',
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DOOM_KEY_I = 'i',
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DOOM_KEY_J = 'j',
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DOOM_KEY_K = 'k',
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DOOM_KEY_L = 'l',
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DOOM_KEY_M = 'm',
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DOOM_KEY_N = 'n',
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DOOM_KEY_O = 'o',
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DOOM_KEY_P = 'p',
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DOOM_KEY_Q = 'q',
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DOOM_KEY_R = 'r',
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DOOM_KEY_S = 's',
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DOOM_KEY_T = 't',
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DOOM_KEY_U = 'u',
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DOOM_KEY_V = 'v',
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DOOM_KEY_W = 'w',
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DOOM_KEY_X = 'x',
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DOOM_KEY_Y = 'y',
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DOOM_KEY_Z = 'z',
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DOOM_KEY_BACKSPACE = 127,
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DOOM_KEY_CTRL = (0x80 + 0x1d), // Both left and right
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DOOM_KEY_LEFT_ARROW = 0xac,
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DOOM_KEY_UP_ARROW = 0xad,
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DOOM_KEY_RIGHT_ARROW = 0xae,
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DOOM_KEY_DOWN_ARROW = 0xaf,
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DOOM_KEY_SHIFT = (0x80 + 0x36), // Both left and right
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DOOM_KEY_ALT = (0x80 + 0x38), // Both left and right
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DOOM_KEY_F1 = (0x80 + 0x3b),
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DOOM_KEY_F2 = (0x80 + 0x3c),
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DOOM_KEY_F3 = (0x80 + 0x3d),
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DOOM_KEY_F4 = (0x80 + 0x3e),
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DOOM_KEY_F5 = (0x80 + 0x3f),
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DOOM_KEY_F6 = (0x80 + 0x40),
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DOOM_KEY_F7 = (0x80 + 0x41),
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DOOM_KEY_F8 = (0x80 + 0x42),
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DOOM_KEY_F9 = (0x80 + 0x43),
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DOOM_KEY_F10 = (0x80 + 0x44),
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DOOM_KEY_F11 = (0x80 + 0x57),
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DOOM_KEY_F12 = (0x80 + 0x58),
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DOOM_KEY_PAUSE = 0xff
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} doom_key_t;
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// Mouse button mapping
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typedef enum
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{
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DOOM_LEFT_BUTTON = 0,
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DOOM_RIGHT_BUTTON = 1,
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DOOM_MIDDLE_BUTTON = 2
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} doom_button_t;
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// For the software renderer. Default is 320x200
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void doom_set_resolution(int width, int height);
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// Set default configurations. Lets say, changing arrows to WASD as default controls
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void doom_set_default_int(const char* name, int value);
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void doom_set_default_string(const char* name, const char* value);
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// set callbacks
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void doom_set_print(doom_print_fn print_fn);
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void doom_set_malloc(doom_malloc_fn malloc_fn, doom_free_fn free_fn);
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void doom_set_file_io(doom_open_fn open_fn,
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doom_close_fn close_fn,
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doom_read_fn read_fn,
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doom_write_fn write_fn,
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doom_seek_fn seek_fn,
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doom_tell_fn tell_fn,
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doom_eof_fn eof_fn);
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void doom_set_gettime(doom_gettime_fn gettime_fn);
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void doom_set_exit(doom_exit_fn exit_fn);
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void doom_set_getenv(doom_getenv_fn getenv_fn);
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// Initializes DOOM and start things up. Call only call one
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void doom_init(int argc, char** argv, int flags);
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// Call this every frame
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void doom_update();
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// Channels: 1 = indexed, 3 = RGB, 4 = RGBA
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const unsigned char* doom_get_framebuffer(int channels);
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// It is always 2048 bytes in size
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short* doom_get_sound_buffer();
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// Call this 140 times per second. Or about every 7ms.
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// Returns midi message. Keep calling it until it returns 0.
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unsigned long doom_tick_midi();
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// Events
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void doom_key_down(doom_key_t key);
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void doom_key_up(doom_key_t key);
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void doom_button_down(doom_button_t button);
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void doom_button_up(doom_button_t button);
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void doom_mouse_move(int delta_x, int delta_y);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif
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