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authorFranklin Wei <git@fwei.tk>2019-07-07 22:00:20 -0400
committerFranklin Wei <git@fwei.tk>2019-07-09 11:20:55 -0400
commit3f59fc8b771625aca9c3aefe03cf1038d8461963 (patch)
treee0623a323613baa0b0993411b38bcaed144b27ed /apps/plugins/sdl/progs/wolf3d/id_sd.h
parent439a0d1d91fa040d261fc39b87278bc9f5391dcc (diff)
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Wolfenstein 3-D!
This is a port of Wolf4SDL, which is derived from the original id software source release. The port runs on top of the SDL plugin runtime and is loaded as an overlay. Licensing of the game code is not an issue, as discussed below (essentially, the Debian project treats Wolf4SDL as GPLv2, with an email from John Carmack backing it up): http://forums.rockbox.org/index.php?topic=52872 Included is a copy of MAME's Yamaha OPL sound chip emulator (fmopl_gpl.c). This file was not part of the original Wolf4SDL source (which includes a non-GPL'd version), but was rather rebased from from a later MAME source which had been relicensed to GPLv2. Change-Id: I64c2ba035e0be7e2f49252f40640641416613439
Diffstat (limited to 'apps/plugins/sdl/progs/wolf3d/id_sd.h')
-rw-r--r--apps/plugins/sdl/progs/wolf3d/id_sd.h158
1 files changed, 158 insertions, 0 deletions
diff --git a/apps/plugins/sdl/progs/wolf3d/id_sd.h b/apps/plugins/sdl/progs/wolf3d/id_sd.h
new file mode 100644
index 0000000000..2d91e730d5
--- /dev/null
+++ b/apps/plugins/sdl/progs/wolf3d/id_sd.h
@@ -0,0 +1,158 @@
+//
+// ID Engine
+// ID_SD.h - Sound Manager Header
+// Version for Wolfenstein
+// By Jason Blochowiak
+//
+
+#ifndef __ID_SD__
+#define __ID_SD__
+
+extern void *OPL_ptr;
+
+#define alOut(n,b) YM3812Write(OPL_ptr, n, b)
+
+#define TickBase 70 // 70Hz per tick - used as a base for timer 0
+
+typedef enum
+{
+ sdm_Off,
+ sdm_PC,sdm_AdLib,
+} SDMode;
+
+typedef enum
+{
+ smm_Off,smm_AdLib
+} SMMode;
+
+typedef enum
+{
+ sds_Off,sds_PC,sds_SoundBlaster
+} SDSMode;
+
+typedef struct
+{
+ longword length;
+ word priority;
+} SoundCommon;
+
+#define ORIG_SOUNDCOMMON_SIZE 6
+
+// PC Sound stuff
+#define pcTimer 0x42
+#define pcTAccess 0x43
+#define pcSpeaker 0x61
+
+#define pcSpkBits 3
+
+typedef struct
+{
+ SoundCommon common;
+ byte data[1];
+} PCSound;
+
+// Register addresses
+// Operator stuff
+#define alChar 0x20
+#define alScale 0x40
+#define alAttack 0x60
+#define alSus 0x80
+#define alWave 0xe0
+// Channel stuff
+#define alFreqL 0xa0
+#define alFreqH 0xb0
+#define alFeedCon 0xc0
+// Global stuff
+#define alEffects 0xbd
+
+typedef struct
+{
+ byte mChar,cChar,
+ mScale,cScale,
+ mAttack,cAttack,
+ mSus,cSus,
+ mWave,cWave,
+ nConn,
+
+ // These are only for Muse - these bytes are really unused
+ voice,
+ mode;
+ byte unused[3];
+} Instrument;
+
+#define ORIG_INSTRUMENT_SIZE 16
+
+typedef struct
+{
+ SoundCommon common;
+ Instrument inst;
+ byte block;
+ byte data[1];
+} AdLibSound;
+
+#define ORIG_ADLIBSOUND_SIZE (ORIG_SOUNDCOMMON_SIZE + ORIG_INSTRUMENT_SIZE + 2)
+
+//
+// Sequencing stuff
+//
+#define sqMaxTracks 10
+
+typedef struct
+{
+ word length;
+ word values[1];
+} MusicGroup;
+
+typedef struct
+{
+ int valid;
+ fixed globalsoundx, globalsoundy;
+} globalsoundpos;
+
+extern globalsoundpos channelSoundPos[];
+
+// Global variables
+extern boolean AdLibPresent,
+ SoundBlasterPresent,
+ SoundPositioned;
+extern SDMode SoundMode;
+extern SDSMode DigiMode;
+extern SMMode MusicMode;
+extern int DigiMap[];
+extern int DigiChannel[];
+
+#define GetTimeCount() ((SDL_GetTicks()*7)/100)
+
+inline void Delay(int wolfticks)
+{
+ if(wolfticks>0) SDL_Delay(wolfticks * 100 / 7);
+}
+
+// Function prototypes
+extern void SD_Startup(void),
+ SD_Shutdown(void);
+
+extern int SD_GetChannelForDigi(int which);
+extern void SD_PositionSound(int leftvol,int rightvol);
+extern boolean SD_PlaySound(soundnames sound);
+extern void SD_SetPosition(int channel, int leftvol,int rightvol);
+extern void SD_StopSound(void),
+ SD_WaitSoundDone(void);
+
+extern void SD_StartMusic(int chunk);
+extern void SD_ContinueMusic(int chunk, int startoffs);
+extern void SD_MusicOn(void),
+ SD_FadeOutMusic(void);
+extern int SD_MusicOff(void);
+
+extern boolean SD_MusicPlaying(void);
+extern boolean SD_SetSoundMode(SDMode mode);
+extern boolean SD_SetMusicMode(SMMode mode);
+extern word SD_SoundPlaying(void);
+
+extern void SD_SetDigiDevice(SDSMode);
+extern void SD_PreparSound(int which);
+extern int SD_PlayDigitized(word which,int leftpos,int rightpos);
+extern void SD_StopDigitized(void);
+
+#endif