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/sved/tags/2023.5/mdr/inc/mdr/bios.h
0,0 → 1,39
/*
* BIOS functions
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_BIOS_H
#define MDR_BIOS_H
 
/* waits for ticks time (1 tick is roughly 55ms, an hour has 65543 ticks)
* works on IBM PC, XT, AT - ie. it's always safe */
void mdr_bios_tickswait(unsigned short ticks);
 
/* returns the current BIOS tick counter (18.2 Hz, 1 tick is roughly 55ms, an
* hour has 65543 ticks). works on IBM PC, XT, AT - ie. it's always safe */
unsigned short mdr_bios_ticks(void);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/cout.h
0,0 → 1,83
/*
* Console output
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_COUT
#define MDR_COUT
 
/* inits the subsystem, fills arguments with:
* w = screen width
* h = screen height
* Any of these arguments may be passed as NULL
* Returns a color flag (0=mono, non-zero=color) */
unsigned char mdr_cout_init(unsigned char *w, unsigned char *h);
 
/* get current attribute value under cursor and returns it */
int mdr_cout_getcurattr(void);
 
void mdr_cout_close(void);
void mdr_cout_cursor_hide(void);
void mdr_cout_cursor_show(void);
 
/* gets cursor's position on screen (row, column) and shape */
void mdr_cursor_getinfo(unsigned char *column, unsigned char *row, unsigned short *shape);
 
void mdr_cout_locate(unsigned char row, unsigned char column);
 
/* print a single character on screen */
void mdr_cout_char(unsigned char y, unsigned char x, char c, unsigned char attr);
 
/* print a single character on screen, repeated count times */
void mdr_cout_char_rep(unsigned char y, unsigned char x, char c, unsigned char attr, unsigned char count);
 
/* print a nul-terminated string on screen, up to maxlen characters
* returns the number of characters actually displayed */
unsigned char mdr_cout_str(unsigned char y, unsigned char x, const char *s, unsigned char attr, unsigned char maxlen);
 
/* clears screen, filling it with a single color attribute */
void mdr_cout_cls(unsigned char colattr);
 
void mdr_cout_getconprops(unsigned char *termwidth, unsigned char *termheight, unsigned char *colorflag);
 
 
/*****************************************************************************
* functions below do not need mdr_cout_init() initialization, they can be *
* used to output data to console right away, as they use DOS services. *
*****************************************************************************/
 
/* output a single character to console */
void mdr_coutraw_char(char c);
 
/* output a nul-terminated string */
void mdr_coutraw_str(const char *s);
 
/* same as above, but followed with a CR/LF line terminator */
void mdr_coutraw_puts(const char *s);
 
/* outputs a DOS-style (CR/LF) newline to console */
void mdr_coutraw_crlf(void);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/dos.h
0,0 → 1,114
/*
* Functions interacting with DOS
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_DOS_H
#define MDR_DOS_H
 
#include <time.h> /* time_t */
 
/* returns a far pointer to the current process PSP structure */
void far *mdr_dos_psp(void);
 
/* returns a far pointer to the environment block of the current process */
char far *mdr_dos_env(void);
 
/* looks for varname in the DOS environment and fills result with its value if
* found. returns NULL if not found or if value is too big to fit in result
* (reslimit exceeded). returns result on success.
* NOTE: this function performs case-sensitive matches */
char *mdr_dos_getenv(char *result, const char *varname, unsigned short reslimit);
 
/* fetches directory where the program was loaded from and return its length.
* path string is never longer than 128 (incl. the null terminator) and it is
* always terminated with a backslash separator, unless it is an empty string */
unsigned char mdr_dos_exepath(char *path);
 
/* returns a far pointer to the full path and filename of the running program.
* returns NULL on error. */
const char far *mdr_dos_selfexe(void);
 
/* waits for a keypress and returns it
* extended keys are returned ORed with 0x100 (example: PGUP is 0x149) */
int mdr_dos_getkey(void);
 
/* Same as mdr_dos_getkey(), but this call cannot be aborted by CTRL+C */
int mdr_dos_getkey2(void);
 
/* flush the keyboard buffer */
void mdr_dos_flushkeyb(void);
 
/* poll stdin status, returns 0 if no character is pending in the keyboard
* buffer, non-zero otherwise */
int mdr_dos_keypending(void);
 
/* sets up the CTRL+C handler for the running program to a no-op - in other
* words, after this call DOS will no longer abort the program on CTRL+C.
* this is only valid for the duration of the program because DOS will restore
* the original handler after the program exits.
*
* an alternative is mdr_dos_ctrlc_off(), but this does not inhibit the
* handler, it sets DOS to not react to CTRL+C in the first place, and this
* setting stays active after the program quits so the program should remember
* to restore the original setting before quitting. */
void mdr_dos_ctrlc_inhibit(void);
 
/* sets the DOS BREAK control OFF, ie. instructs DOS not to check for CTRL+C
* during most input operations. returns the previous state of the break
* control flag (0=disabled 1=enabled). this changes a global DOS flag that can
* be checked on command line with the "BREAK" command, so the program should
* take care to restore the initial setting before quitting. */
unsigned char mdr_dos_ctrlc_disable(void);
 
/* sets the DOS BREAK control ON. see mdr_dos_ctrlc_disable() for details. */
void mdr_dos_ctrlc_enable(void);
 
/* converts a "DOS format" 16-bit packed date into a standard (time_t)
* unix timestamp. A DOS date is a 16-bit value:
* YYYYYYYM MMMDDDDD
*
* day of month is always within 1-31 range;
* month is always within 1-12 range;
* year starts at 1980 and continues for 127 years */
time_t mdr_dos_date2unix(unsigned short d);
 
/* converts a "DOS format" 16-bit packed time into hours, minutes and seconds
*
* A DOS time is a 16-bit value:
* HHHHHMMM MMMSSSSS
*
* HHHHH = hours, always within 0-23 range
* MMMMMM = minutes, always within 0-59 range
* SSSSS = seconds/2 (always within 0-29 range) */
void mdr_dos_time2hms(unsigned char *h, unsigned char *m, unsigned char *s, unsigned short t);
 
/* Determine the canonical name of the specified filename or path and writes
* the result into result. The input path does not need to actually exist.
* This function requires a 3.x+ DOS kernel.
* name is simply copied to result on error. */
void mdr_dos_truename(char *result, const char *name);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/mouse.h
0,0 → 1,60
/*
* Mouse routines
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_MOUSE_H
#define MDR_MOUSE_H
 
/* init the mouse driver (and checks for presence of mouse support at same time)
* returns 0 if no mouse is present, and the number of buttons otherwise.
* after initialization the mouse cursor is hidden, use mdr_mouse_show() to
* make it visible. */
int mdr_mouse_init(void);
 
/* shows the mouse pointer */
void mdr_mouse_show(void);
 
/* hides the mouse pointer */
void mdr_mouse_hide(void);
 
/* get x/y coordinates of the mouse, and returns a bitfield with state of buttons */
int mdr_mouse_getstate(int *x, int *y);
 
/* get x/y coordinates of the mouse when the last button release occured since last check.
returns the id of the button pressed (1 or 2), or 0 if no event occured. */
int mdr_mouse_fetchrelease(int *x, int *y);
 
/* set graphic pointer shape. icon is 64-bytes long, two sets of 32. each set
* of 32 bytes is organized as a 16x16 bitmap, ie. 16 rows of 16-bit values.
* a) the first set of 16 shorts defines the background mask - that is, the
* background will show through wherever there is a 1-bit in that data.
* b) the second set defines the "XOR mask" - that is, the pixels matching the
* 1-bit in this data set are toggled.
* hotspotx and hotspoty define respectively the horizontal and vertical hot
* spot of the pointer (default being [0,0], that is the top left corner). */
void mdr_mouse_setcursor(const unsigned short *icon, unsigned char hotspotx, unsigned char hotspoty);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/opl.h
0,0 → 1,241
/*
* Library to access OPL2/OPL3 hardware (YM3812 / YMF262)
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2015-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef mdr_opl_h
#define mdr_opl_h
 
struct mdr_opl_timbre {
unsigned char mod_ws, car_ws; /* waveform select (0-4), reg Exh */
unsigned char mod_sr, car_sr; /* sustain/release, reg 8xh */
unsigned char mod_ad, car_ad; /* attack/decay, reg 6xh */
unsigned char mod_20, car_20; /* tremolo/vibrato/sustain..., reg 2xh */
unsigned char mod_40, car_40; /* reg 4xh */
unsigned char feedconn;
};
 
struct mdr_opl_timbretemplate {
struct {
unsigned char ws; /* waveform select 0..3 */
unsigned char sustlev; /* sustain level 0..15 */
unsigned char release; /* release level 0..15 */
unsigned char attack; /* attack rate 0..15 */
unsigned char decay; /* decay rate 0..15 */
unsigned char tremolo; /* tremolo flag 0..1 */
unsigned char vibrato; /* vibrato flag 0..1 */
unsigned char sustain; /* sustain flag 0..1 */
unsigned char ksr; /* KSR (envelope scaling) flag 0..1 */
unsigned char mult; /* frequency multiplication factor 0..15 */
unsigned char ksl; /* Key Scale Level 0..3 */
unsigned char outlev; /* output level 0..63 */
} carrier;
struct {
unsigned char ws; /* waveform select 0..3 */
unsigned char sustlev; /* sustain level 0..15 */
unsigned char release; /* release level 0..15 */
unsigned char attack; /* attack rate 0..15 */
unsigned char decay; /* decay rate 0..15 */
unsigned char tremolo; /* tremolo flag 0..1 */
unsigned char vibrato; /* vibrato flag 0..1 */
unsigned char sustain; /* sustain flag 0..1 */
unsigned char ksr; /* KSR (envelope scaling) flag 0..1 */
unsigned char mult; /* frequency multiplication factor 0..15 */
unsigned char ksl; /* Key Scale Level 0..3 */
unsigned char outlev; /* output level 0..63 */
} modultr;
unsigned char feedback;/* FeedBack Modulation Factor 0..7 */
unsigned char conn; /* Synthesis type: 0=FM / 1=Additive */
};
 
enum MDR_OPL_TIMER {
MDR_OPL_TIMER_80US = 2,
MDR_OPL_TIMER_320US = 3
};
 
 
/* frequency groups, to be used with mdr_opl_noteon() and mdr_opl_notebend().
* There are 7 frequency groups to choose from. Each group supports a different
* span of frequencies. Higher groups have wider spans, but at the cost of larger
* difference between adjacent notes:
*
* Block Note 0 Note 1023 Step gap between adjacent notes
* FGROUP0 0.047 Hz 48.503 Hz 0.048 Hz
* FGROUP1 0.094 Hz 97.006 Hz 0.095 Hz
* FGROUP2 0.189 Hz 194.013 Hz 0.190 Hz
* FGROUP3 0.379 Hz 388.026 Hz 0.379 Hz
* FGROUP4 0.758 Hz 776.053 Hz 0.759 Hz
* FGROUP5 1.517 Hz 1552.107 Hz 1.517 Hz
* FGROUP6 3.034 Hz 3104.215 Hz 3.034 Hz
* FGROUP7 6.068 Hz 6208.431 Hz 6.069 Hz
*
* This shows that block 7 is capable of reaching the highest note (6.2kHz) but
* since there are 6 Hz between notes the accuracy suffers. Example: note A-4
* is 440Hz but in this block, the two closest frequency numbers are 72 and 73,
* which create tones at 437Hz and 443Hz respectively, neither of which is
* particularly accurate. Blocks 3 and below are unable to reach as high as
* 440Hz, but block 4 can. With block 4, frequency numbers 579 and 580 produce
* 439.4 Hz and 440.2 Hz, considerably closer to the intended frequency.
*
* In other words, when calculating notes, the best accuracy is achieved by
* selecting the lowest possible block number that can reach the desired note
* frequency.
*
* More details: https://moddingwiki.shikadi.net/wiki/OPL_chip#A0-A8:_Frequency_Number
*/
 
enum mdr_opl_fgroup_t {
MDR_OPL_FGROUP0 = 0,
MDR_OPL_FGROUP1 = 1 << 2,
MDR_OPL_FGROUP2 = 2 << 2,
MDR_OPL_FGROUP3 = 3 << 2,
MDR_OPL_FGROUP4 = 4 << 2,
MDR_OPL_FGROUP5 = 5 << 2,
MDR_OPL_FGROUP6 = 6 << 2,
MDR_OPL_FGROUP7 = 7 << 2
};
 
/* Hardware detection and initialization. Must be called before any other
* OPL function. Returns 0 on success, non-zero otherwise. */
int mdr_opl_init(void);
 
/* close OPL device */
void mdr_opl_close(void);
 
/* turns off all notes */
void mdr_opl_clear(void);
 
/* loads an instrument described by properties in a timbre_t struct into
* the defined voice channel. The OPL2 chip supports up to 9 voice channels,
* from 0 to 8. The timbre struct can be freed right after this call. */
void mdr_opl_loadinstrument(unsigned char voice, const struct mdr_opl_timbre *timbre);
 
/* generate a timbre structure based on a timbre template. this is a
* convenience function meant to provide a human-compatible (more readable)
* way of generating a timbre struct. */
int mdr_opl_timbre_gen(struct mdr_opl_timbre *timbre, const struct mdr_opl_timbretemplate *tpl);
 
/* Triggers a note on selected voice channel.
* freqid is a value between 0 and 1023. The following formula can be used to
* determine the freq number for a given note frequency (Hz) and block:
*
* freqid = frequency * 2^(20 - block) / 49716
*
* The note will be kept "pressed" until mdr_opl_noteoff() is called. */
void mdr_opl_noteon(unsigned char voice, unsigned short freqid, enum mdr_opl_fgroup_t fgroup);
 
/* changes the frequency of the note currently playing on voice channel, this
* can be used for pitch bending. */
void mdr_opl_notebend(unsigned char voice, unsigned short freqid, enum mdr_opl_fgroup_t fgroup);
 
/* releases a note on selected voice. */
void mdr_opl_noteoff(unsigned char voice);
 
/* adjusts volume of a voice. volume goes from 63 (mute) to 0 (loudest) */
void mdr_opl_voicevolume(unsigned char voice, unsigned char volume);
 
/* this is a LOW-LEVEL function that writes a data byte into the reg register
* of the OPL chip. Use this only if you know exactly what you are doing. */
void mdr_opl_regwr(unsigned char reg, unsigned char data);
 
 
/*****************************************************************************
* IMF AUDIO FILES PLAYBACK *
* *
* It is possible to mix IMF playback calls with manual notes, but you must *
* take care to use only voices not used by your IMF audio. Typically games *
* tend to use the voice #0 for sound effects and voices #1 to #8 for music. *
* *
* The IMF API comes in two version: the normal one, or "imfeasy". The easy *
* version is easier to use, but requires to have the entire IMF audio file *
* loaded in memory, while the normal (non-easy) allows for more flexibility *
* in this regard, potentially allowing for playback of huge IMF files. *
*****************************************************************************/
 
/*** EASY INTERFACE ***/
 
/* playback initialization, easy interface. imf points to the start of the IMF
* file. The imf pointer must not be freed as long as playback is ongoing.
* imflength is the size (in bytes) of the IMF data.
* clock must be an incrementing value that wraps to 0 after 65535. The clock
* speed will control the playback's tempo.
* loopscount tells how many times the song will have to be looped (0 means
* "loop forever").
* returns 0 on success, non-zero otherwise. */
int mdr_opl_imfeasy_init(void *imf, unsigned short imflength, unsigned short clock, unsigned char loopscount);
 
/* Playback of an IMF file preloaded via mdr_opl_imfeasy_init(). This function
* must be called repeatedly at a high frequency for best playback quality.
* Returns 0 on success, 1 if playback ended, -1 on error. */
int mdr_opl_imfeasy_play(unsigned short clock);
 
/*** ADVANCED INTERFACE ***/
 
/* playback initialization, this function must be called immediately before
* playback. imf points to the start of the IMF file and must contain at least
* the first 6 bytes of the audio file.
* clock must be an incrementing value that wraps to 0 after 65535.
* the clock speed will control the playback's tempo.
* returns the amount of consumed bytes (0, 4 or 6) */
unsigned short mdr_opl_imf_init(void *imf, unsigned short clock);
 
/* Playback, advanced version. Feeds the IMF playback routine with IMF data.
* Returns the amount of bytes that have been consumed, hence the next call
* should provide an imf pointer advanced by this many bytes (and imflen
* decreased accordingly). Such approach might not be the most intuitive, but
* it allows to load an imf song partially and provide only short chunks of
* data for playback instead of having to buffer the entire song in memory.
* For a simpler call that requires to buffer the entire IMF file in memory,
* see mdr_opl_imf_playeasy().
* This function must be called repeatedly at a high frequency for best
* playback quality. */
unsigned short mdr_opl_imf_play(void *imf, unsigned short imflen, unsigned short clock);
 
 
/*****************************************************************************
* OPL TIMER FUNCTIONS *
*****************************************************************************/
 
/* configures and starts a timer given type so it emits a tick every count
* periods. Two timer types are available:
* MDR_OPL_TIMER_80US - with a period of 80us
* MDR_OPL_TIMER_320US - with a period of 320us
* count may range from 0 to 255, but 0 means "256 periods".
*
* You may use only one timer at a time.
*
* EXAMPLE: setting up MDR_OPL_TIMER_80US with a count of 25 would make the
* timer tick every 2ms (25 * 80us). */
void mdr_opl_timer_set(enum MDR_OPL_TIMER timertype, unsigned char count);
 
/* returns 1 if timer tick occured, 0 otherwise. After a tick has been
* returned, this function will return 0 until next tick.
*
* it is important to note that there is no way to know whether one tick
* passed since last time, or more, so it is up to you to make sure you call
* this function fast enough. */
unsigned char mdr_opl_timer_tick(void);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/pcx.h
0,0 → 1,77
/*
* PCX-loading routines
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2022-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_PCX_H
#define MDR_PCX_H
 
#include <stdio.h> /* FILE */
 
struct pcx_hdr {
unsigned char rle;
unsigned char bpp;
unsigned short max_x;
unsigned short max_y;
unsigned short bytes_per_scanline;
struct {
unsigned char r;
unsigned char g;
unsigned char b;
} pal[256];
};
 
/* analyzes the header of a PCX file and fills the pcx_hdr struct accordingly.
* fd must be a valid (open) file descriptor.
* offset is the address inside the file where the PCX data is located
* (usually 0, unless the file is some kind of container).
* len is the total length of the PCX data. len=0 means "same as file size"
* returns 0 on success, non-zero otherwise. */
int mdr_pcx_anal(struct pcx_hdr *h, FILE *fd, unsigned long offset, unsigned long len);
 
/* this function should be called to load the next row of a PCX file into a
* buffer pointed at by bufptr. you will typically want to call this function
* h->max_y times. ptr must be at least (h->max_x + 1) bytes large for 8bpp.
* the pcx_hdr struct must have been produced by pcx_anal().
* returns 0 on success, non-zero otherwise. */
int mdr_pcx_loadrow(void *bufptr, const struct pcx_hdr *h, FILE *fd);
 
/* load an entire PCX file into a pixel buffer. the PCX data must have been
* previously analyzed by pcx_anal() and the fd file pointer must not have been
* modified since then. the destination buffer must be large enough to hold all
* pixels, ie. (h->max_x + 1) * (h->max_y + 1) for 8 bpp.
* returns 0 on success, non-zero otherwise. */
int mdr_pcx_load(void *ptr, const struct pcx_hdr *h, FILE *fd);
 
/* convert img to 8bpp if needed (ie unpack 2 and 4bpp data to 8bpp).
* the conversion is performed in-place, make sure the img buffer is large
* enough to accomodate the size of the data after conversion (ie. twice as
* big on 4bpp source, 4x times as big on 2bpp source and 8x as big on 1bpp
* source).
* if rowflag is set to a non-zero value, then the routine assumes img
* contains only a single row of pixels */
int mdr_pcx_to8bpp(void *img, const struct pcx_hdr *h, unsigned char rowflag);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/rs232.h
0,0 → 1,47
/*
* Reading from and writing to an RS-232 port
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2015-2022 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_RS232_H
#define MDR_RS232_H
 
/* get the I/O port for COMx (1..4) */
unsigned short rs232_getport(int x);
 
/* check if the COM port is ready for write. loops for some time waiting.
* returns 0 if port seems ready eventually, non-zero otherwise. can be used
* to verify the rs232 presence */
int rs232_check(unsigned short port);
 
/* write a byte to the COM port at 'port'. this function will block if the
* UART is not ready to transmit yet. */
void rs232_write(unsigned short port, int data);
 
/* read a byte from COM port at 'port'. returns the read byte, or -1 if
* nothing was available to read. */
int rs232_read(unsigned short port);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/sbdigi.h
0,0 → 1,57
/*
* SoundBlaster routines for DSP driving
*
* Copyright (C) 2022 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_SBDIGI_H
#define MDR_SBDIGI_H
 
struct sbdigi_ctx;
 
/* initializes the SoundBlaster DSP chip
* blaster must point to a BLASTER environment string (like "A220 I5 D1")
* returns a pointer to a context, NULL on error
* NOTE: DSP's state after initialization may or may not be muted, depending
* on the exact hardware revision. use sbdigi_spkoff() to make sure it is
* unmuted */
struct sbdigi_ctx *sbdigi_init(const char *blaster);
 
/* unmutes the SoundBlaster DSP */
void sbdigi_spkon(struct sbdigi_ctx *ctx);
 
/* mutes the SoundBlaster DSP */
void sbdigi_spkoff(struct sbdigi_ctx *ctx);
 
/* plays a short sample
* ctx - DSP context, as returned by sbdigi_init()
* buf - pointer to sample data (must be PCM, 8000 Hz, mono, 8-bit unsigned
* len - length of the sample, in bytes
* NOTES: this routine uses DMA to transfer memory. This has two implications:
* 1. the routine will return almost immediately, while the sound is playing
* 2. sample data must be contained in a buffer that does NOT cross a 64K page
* because DMA transfers are unable to cross 64K boundaries */
void sbdigi_playsample(struct sbdigi_ctx *ctx, void *buf, unsigned short len);
 
/* shuts down the DSP and frees context memory */
void sbdigi_quit(struct sbdigi_ctx *ctx);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/timer.h
0,0 → 1,51
/*
* High-resolution timing routines (PIT reprogramming)
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_TIMER_H
#define MDR_TIMER_H
 
/* Starts the timer by reprogramming the 8253 chip from its default 18.2 Hz
* frequency to about 1.1 kHz. It is mandatory to revert the timer to its
* original frequency via mdr_timer_stop() before your application quits. */
void mdr_timer_init(void);
 
/* Fills res with the amount of microseconds that elapsed since either
* mdr_timer_init() or mdr_timer_reset(), whichever was called last.
* Note that the res counter wraps around approximately every 71 minutes if
* mdr_timer_reset() is not called. */
void mdr_timer_read(unsigned long *res);
 
/* Reset the timer value, this can be used by the application to make sure
* no timer wrap occurs during critical parts of your code flow */
void mdr_timer_reset(void);
 
/* Stops (uninstalls) the timer. This must be called before your application
* quits, otherwise the system will likely crash. This function has a void
* return value so that it can be registered as an atexit() procedure. */
void mdr_timer_stop(void);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/trigint.h
0,0 → 1,46
/*
* Routines for computation of basic transcendental functions sin and cos.
* These routines use only integers, hence they do not require an FPU nor any
* kind of FPU emulation. Works reasonably fast even on an 8086 CPU.
*
* The results are computed using polynomial approximations. Their precision
* is not expected to be ideal, but "good enough" for common usage.
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2022 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_TRIGINT_H
#define MDR_TRIGINT_H
 
/* Computes the cosine value for the given radian.
* The radian argument must be provided multiplied by 1000.
* Returns the cosine value multiplied by 1000. */
short trigint_cos(short rad1000);
 
/* Computes the sine value for the given radian angle.
* The radian argument must be provided multiplied by 1000.
* Returns the cosine value multiplied by 1000. */
short trigint_sin(short rad1000);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/unzip.h
0,0 → 1,58
/*
* Function to iterate through files in a ZIP archive.
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2012-2022 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_UNZIP
#define MDR_UNZIP
 
#include <stdio.h> /* FILE * */
 
#define ZIP_FLAG_ISADIR 1
#define ZIP_FLAG_ENCRYPTED 2
 
#define ZIP_METH_STORE 0
#define ZIP_METH_DEFLATE 8
 
struct mdr_zip_item {
unsigned long filelen;
unsigned long compressedfilelen;
unsigned long crc32;
unsigned long dataoffset; /* offset in the file where compressed data starts */
unsigned long nextidxoffset; /* offset in the file of the next zip record, used by mdr_zip_iter() */
unsigned short dosdate; /* datestamp of the file (DOS packed format) */
unsigned short dostime; /* timestamp of the file (DOS packed format) */
unsigned short compmethod; /* compression method (ZIP_METH_xxx) */
unsigned char flags; /* see ZIP_FLAG_xxx above */
char fname[256]; /* filename */
};
 
/* returns next item found in zip file. this is supposed to be called
* iteratively, passing the previous mdr_zipitem struct each time (z must be
* all zeroed out on first call).
* returns 0 on success, neg on error, 1 on end of archive */
int mdr_zip_iter(struct mdr_zip_item *z, FILE *fd);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/ver.h
0,0 → 1,33
/*
* MDR version
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_VER_H
 
#define MDR_VER_MAJOR 2023
#define MDR_VER_MINOR 0
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/vid12.h
0,0 → 1,87
/*
* a few functions for mode 12h programming (640x480 4bpp)
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2022-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_VID12_H
 
#define MDR_VID12_H
 
/* init video mode 12h (640x480x16c)
* remember to call vid12_close() at exit time */
void vid12_init(void);
 
/* wait until VBLANK */
void vid12_waitvblank(void);
 
/* wait until ANY blank: either VBLANK or HBLANK */
void vid12_waitblank(void);
 
/* clear screen using color
* this function is fastest when color is 0 or 15 */
void vid12_cls(unsigned char color);
 
/* clear a single scanline (0..479) with a solid color (0..15)
* this function is fastest when color is 0 or 15 */
void vid12_clrline(unsigned short line, unsigned char color);
 
/* fill lines from linefirst to linelast with an 8 pixels pattern
* linelast must be equal to or greater than linelast
* pattern must be 8 bytes long */
void vid12_linepat(unsigned short linefirst, unsigned short linelast, const unsigned char *pattern);
 
/* deinit video mode 12h and resets to previous mode */
void vid12_close(void);
 
/* puts a pixel on screen */
void vid12_putpixel(unsigned short x, unsigned short y, unsigned char col);
 
/* draws a horizonatal line from [x1,y] to [x2,y] */
void vid12_hline(unsigned short y, unsigned short x1, unsigned short x2, unsigned char color);
 
/* write an entire scanline (640 pixels) to screen. the pixels data must be
* a serie of 640 bytes having values in the range [0..15] */
void vid12_putscanline(unsigned short scanline, const unsigned char *pixels);
 
/* set index palette color to given R,G,B value. each R,G,B component must be
* a 6 bit value in the range [0..63] (where 63 is the maximum luminosity) */
void vid12_setpalette(unsigned char index, unsigned char r, unsigned char g, unsigned char b);
 
/*****************************
* VRAM TO VRAM operations *
*****************************/
 
/* prepares VGA for a VRAM-to-VRAM copy operation */
void vid12_vramcpy_prep(void);
 
/* fast (VRAM-to-VRAM) copy of a scanline (0..479) to another scanline.
* vid12_vramcpy_prep() must be called before and vid12_vramcpy_done must be
* called after one or more vid12_vramcpy_scanline() calls. */
void vid12_vramcpy_scanline(unsigned short dst, unsigned short src);
 
/* sets VGA back to its normal state after VRAM-to-VRAM operations */
void vid12_vramcpy_done(void);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/video.h
0,0 → 1,94
/*
* video library - provides a few functions for mode 4 and 13h programming.
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2023 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_VIDEO_H
 
#define MDR_VIDEO_H
 
#define VIDEO_DBUF 1
 
struct video_handler {
unsigned char far *dbuf;
int flags;
int mode;
unsigned char lastmode;
};
 
/* returns 0 if no VGA has been detected, non-zero otherwise */
int video_detectvga(void);
 
/* returns 0 if no EGA has been detected, non-zero otherwise */
int video_detectega(void);
 
/* init video mode. either 0x04 for CGA or 0x13 for VGA */
struct video_handler *video_open(int mode, int flags);
 
/* reads a screen dump from file and puts it to the screen buffer */
void video_file2screen(struct video_handler *handler, char *file);
 
/* load count colors of palette from array of rgb triplets */
void video_loadpal(const unsigned char *pal, int count, int offset);
 
/* Wait until VBLANK */
void video_waitvblank(void);
 
void video_flip(struct video_handler *handler);
 
/* copies line ysrc over ydst in CGA mode memory */
void video_cgalinecopy(struct video_handler *handler, int ydst, int ysrc);
 
/* clear screen using color */
void video_cls(struct video_handler *handler, unsigned char color);
 
/* renders a sprite of width and height dimensions onscreen, starting at specified x/y location
coloffset is an offset to add to color indexes, while transp is the index of the transparent color (set to -1 if none) */
void video_putsprite(struct video_handler *handler, unsigned char *sprite, int x, int y, int width, int height, int coloffset, int transp, int maxcol);
 
/* same as video_putsprite(), but reads the sprite from a file */
void video_putspritefromfile(struct video_handler *handler, char *file, long foffset, int x, int y, int width, int height, int coloffset, int transp, int maxcol);
 
void video_close(struct video_handler *handler);
 
void video_rputpixel(struct video_handler *handler, int x, int y, unsigned char col, int repeat);
 
/* render a horizontal line of length len starting at x/y */
void video_hline(struct video_handler *handler, int x, int y, int len, unsigned char color);
 
/* render a vertical line of length len starting at x/y */
void video_vline(struct video_handler *handler, int x, int y, int len, unsigned char color);
 
void video_line(struct video_handler *handler, int x1, int y1, int x2, int y2, unsigned char color);
 
void video_rect(struct video_handler *handler, int x, int y, int width, int height, unsigned char color);
 
/* renders a rectangle on screen, at position x/y, filled with color */
void video_rectfill(struct video_handler *handler, int x, int y, int width, int height, unsigned char color);
 
void video_setpalette(unsigned char index, unsigned char r, unsigned char g, unsigned char b);
 
void video_getpalette(unsigned char index, unsigned char *r, unsigned char *g, unsigned char *b);
#endif
/sved/tags/2023.5/mdr/inc/mdr/wave.h
0,0 → 1,42
/*
* WAVE-loading routines
*
* Copyright (C) 2022 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_WAVE_H
#define MDR_WAVE_H
 
struct wave_t {
unsigned short format;
unsigned short channels;
unsigned short rate;
unsigned short bitdepth;
unsigned long dataoffset;
unsigned long len;
};
 
/* looks at an open WAVE file and fills the wav structure with related
* information (format, number of channels, bit depth, data rate, etc)
* returns 0 on success */
int wave_anal(struct wave_t *wav, FILE *fd);
 
#endif
/sved/tags/2023.5/mdr/inc/mdr/xms.h
0,0 → 1,51
/*
* XMS driver
*
* This file is part of the Mateusz' DOS Routines (MDR): http://mdr.osdn.io
* Published under the terms of the MIT License, as stated below.
*
* Copyright (C) 2014-2022 Mateusz Viste
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to
* deal in the Software without restriction, including without limitation the
* rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
* sell copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
* FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
* IN THE SOFTWARE.
*/
 
#ifndef MDR_XMS_H
#define MDR_XMS_H
 
struct xms_struct {
unsigned int handle;
long memsize; /* allocated memory size, in bytes */
};
 
/* checks if a XMS driver is installed, inits it and allocates a memory block of memsize K-bytes.
* if memsize is 0, then the maximum possible block will be allocated.
* returns the amount of allocated memory (in K-bytes) on success, 0 otherwise. */
unsigned int xms_init(struct xms_struct *xms, unsigned int memsize);
 
/* free XMS memory */
void xms_close(struct xms_struct *xms);
 
/* copies a chunk of memory from conventional memory into the XMS block.
returns 0 on sucess, non-zero otherwise. */
int xms_push(struct xms_struct *xms, void far *src, unsigned int len, long xmsoffset);
 
/* copies a chunk of memory from the XMS block into conventional memory */
int xms_pull(struct xms_struct *xms, long xmsoffset, void far *dst, unsigned int len);
 
#endif