Move all of midiplay into its subdir and add a Makefile for it, add header files as necessary.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@14841 a1c6a512-1295-4272-9138-f99709370657

1 files changed, 172 insertions, 0 deletions

diff --git a/apps/plugins/midi/midiutil.h b/apps/plugins/midi/midiutil.h
new file mode 100644
index 0000000..cfaa4fb
--- /dev/null
+++ b/apps/plugins/midi/midiutil.h
@@ -0,0 +1,172 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2005 Stepan Moskovchenko
+ *
+ * All files in this archive are subject to the GNU General Public License.
+ * See the file COPYING in the source tree root for full license agreement.
+ *
+ * This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
+ * KIND, either express or implied.
+ *
+ ****************************************************************************/
+
+#define FRACTSIZE 10
+
+#define BUF_SIZE 256
+#define NBUF   2
+
+
+#ifndef SIMULATOR
+
+#if (HW_SAMPR_CAPS & SAMPR_CAP_22)
+#define SAMPLE_RATE SAMPR_22  // 44100 22050 11025
+#else
+#define SAMPLE_RATE SAMPR_44  // 44100 22050 11025
+#endif
+
+#define MAX_VOICES 20   // Note: 24 midi channels is the minimum general midi
+                        // spec implementation
+
+#else	// Simulator requires 44100, and we can afford to use more voices
+
+#define SAMPLE_RATE SAMPR_44
+#define MAX_VOICES 48
+
+#endif
+
+#define BYTE unsigned char
+
+//Data chunk ID types, returned by readID()
+#define ID_UNKNOWN  -1
+#define ID_MTHD     1
+#define ID_MTRK     2
+#define ID_EOF      3
+#define ID_RIFF     4
+
+//MIDI Commands
+#define MIDI_NOTE_OFF   128
+#define MIDI_NOTE_ON    144
+#define MIDI_AFTERTOUCH 160
+#define MIDI_CONTROL    176
+#define MIDI_PRGM   192
+#define MIDI_PITCHW 224
+
+//MIDI Controllers
+#define CTRL_VOLUME 7
+#define CTRL_BALANCE    8
+#define CTRL_PANNING    10
+#define CHANNEL     1
+
+//Most of these are deprecated.. rampdown is used, maybe one other one too
+#define STATE_ATTACK        1
+#define STATE_DECAY         2
+#define STATE_SUSTAIN       3
+#define STATE_RELEASE       4
+#define STATE_RAMPDOWN      5
+
+//Loop states
+#define STATE_LOOPING           7
+#define STATE_NONLOOPING    8
+
+//Various bits in the GUS mode byte
+#define LOOP_ENABLED    4
+#define LOOP_PINGPONG   8
+#define LOOP_REVERSE    16
+
+#define LOOPDIR_FORWARD 0
+#define LOOPDIR_REVERSE 1
+
+struct MIDIfile
+{
+    int  Length;
+    unsigned short numTracks;
+    unsigned short div; /* Time division, X ticks per millisecond */
+    struct Track * tracks[48];
+    unsigned char patches[128];
+    int numPatches;
+};
+
+/*
+struct SynthObject
+{
+    struct GWaveform * wf;
+    unsigned int delta;
+    unsigned int decay;
+    unsigned int cp;
+    unsigned char state, loopState, loopDir;
+    unsigned char note, vol, ch, isUsed;
+    int curRate, curOffset, targetOffset;
+    unsigned int curPoint;
+};
+*/
+
+struct SynthObject
+{
+    struct GWaveform * wf;
+    int delta;
+    int decay;
+    unsigned int cp; /* unsigned int */
+    int state, loopState, loopDir;
+    int note, vol, ch, isUsed;
+    int curRate, curOffset, targetOffset;
+    int curPoint;
+    signed short int volscale;
+};
+
+struct Event
+{
+    unsigned int delta;
+    unsigned char status, d1, d2;
+    unsigned int len;
+    unsigned char * evData;
+};
+
+struct Track
+{
+    unsigned int size;
+    unsigned int numEvents;
+    unsigned int delta; /* For sequencing */
+    unsigned int pos;   /* For sequencing */
+    void * dataBlock;
+};
+
+int printf(const char *fmt, ...);
+int midimain(void * filename);
+unsigned char readChar(int file);
+void sendEvent(struct Event * ev);
+inline void setPoint(struct SynthObject * so, int pt);
+struct Event * getEvent(struct Track * tr, int evNum);
+int readTwoBytes(int file);
+int readFourBytes(int file);
+int readVarData(int file);
+int eof(int fd);
+unsigned char * readData(int file, int len);
+void exit(int code);
+
+#define malloc(n) my_malloc(n)
+void * my_malloc(int size);
+
+extern struct SynthObject voices[MAX_VOICES];
+
+extern int chVol[16];       /* Channel volume                */
+extern int chPanLeft[16];   /* Channel panning               */
+extern int chPanRight[16];
+extern int chPat[16];       /* Channel patch                 */
+extern int chPW[16];        /* Channel pitch wheel, MSB only */
+
+extern struct GPatch * gusload(char *);
+extern struct GPatch * patchSet[128];
+extern struct GPatch * drumSet[128];
+
+extern struct MIDIfile * mf;
+
+extern int numberOfSamples;
+extern long bpm;
+