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, 318 insertions, 0 deletions

diff --git a/apps/plugins/midi/midiplay.c b/apps/plugins/midi/midiplay.c
new file mode 100644
index 0000000000..7a1176b1c9
--- /dev/null
+++ b/apps/plugins/midi/midiplay.c
@@ -0,0 +1,318 @@
+/***************************************************************************
+ *             __________               __   ___.
+ *   Open      \______   \ ____   ____ |  | _\_ |__   _______  ___
+ *   Source     |       _//  _ \_/ ___\|  |/ /| __ \ /  _ \  \/  /
+ *   Jukebox    |    |   (  <_> )  \___|    < | \_\ (  <_> > <  <
+ *   Firmware   |____|_  /\____/ \___  >__|_ \|___  /\____/__/\_ \
+ *                     \/            \/     \/    \/            \/
+ * $Id$
+ *
+ * Copyright (C) 2005 Karl Kurbjun based on midi2wav by 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.
+ *
+ ****************************************************************************/
+#include "plugin.h"
+#include "guspat.h"
+#include "midiutil.h"
+#include "synth.h"
+#include "sequencer.h"
+#include "midifile.h"
+
+PLUGIN_HEADER
+PLUGIN_IRAM_DECLARE
+
+/* variable button definitions */
+#if CONFIG_KEYPAD == RECORDER_PAD
+#define BTN_QUIT     BUTTON_OFF
+#define BTN_RIGHT    BUTTON_RIGHT
+#define BTN_UP       BUTTON_UP
+#define BTN_DOWN     BUTTON_DOWN
+
+#elif CONFIG_KEYPAD == ONDIO_PAD
+#define BTN_QUIT         BUTTON_OFF
+#define BTN_RIGHT        BUTTON_RIGHT
+#define BTN_UP           BUTTON_UP
+#define BTN_DOWN         BUTTON_DOWN
+
+#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
+#define BTN_QUIT         BUTTON_OFF
+#define BTN_RIGHT        BUTTON_RIGHT
+#define BTN_UP           BUTTON_UP
+#define BTN_DOWN         BUTTON_DOWN
+
+#define BTN_RC_QUIT      BUTTON_RC_STOP
+
+#elif (CONFIG_KEYPAD == IPOD_4G_PAD) || (CONFIG_KEYPAD == IPOD_3G_PAD) || \
+      (CONFIG_KEYPAD == IPOD_1G2G_PAD)
+#define BTN_QUIT         (BUTTON_SELECT | BUTTON_MENU)
+#define BTN_RIGHT        BUTTON_RIGHT
+#define BTN_UP           BUTTON_SCROLL_FWD
+#define BTN_DOWN         BUTTON_SCROLL_BACK
+
+#elif (CONFIG_KEYPAD == GIGABEAT_PAD)
+#define BTN_QUIT         BUTTON_POWER
+#define BTN_RIGHT        BUTTON_RIGHT
+#define BTN_UP           BUTTON_UP
+#define BTN_DOWN         BUTTON_DOWN
+
+#elif (CONFIG_KEYPAD == SANSA_E200_PAD) || \
+(CONFIG_KEYPAD == SANSA_C200_PAD)
+#define BTN_QUIT         BUTTON_POWER
+#define BTN_RIGHT        BUTTON_RIGHT
+#define BTN_UP           BUTTON_UP
+#define BTN_DOWN         BUTTON_DOWN
+
+#elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
+#define BTN_QUIT         BUTTON_POWER
+#define BTN_RIGHT        BUTTON_RIGHT
+#define BTN_UP           BUTTON_UP
+#define BTN_DOWN         BUTTON_DOWN
+
+#elif CONFIG_KEYPAD == IRIVER_H10_PAD
+#define BTN_QUIT         BUTTON_POWER
+#define BTN_RIGHT        BUTTON_RIGHT
+#define BTN_UP           BUTTON_SCROLL_UP
+#define BTN_DOWN         BUTTON_SCROLL_DOWN
+
+#endif
+
+#undef SYNC
+
+#ifdef SIMULATOR
+        #define SYNC
+#endif
+
+struct MIDIfile * mf IBSS_ATTR;
+
+int numberOfSamples IBSS_ATTR;
+long bpm IBSS_ATTR;
+
+long gmbuf[BUF_SIZE*NBUF];
+
+int quit=0;
+struct plugin_api * rb;
+
+enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
+{
+    int retval = 0;
+
+    PLUGIN_IRAM_INIT(api)
+
+    rb = api;
+    if(parameter == NULL)
+    {
+        rb->splash(HZ*2, " Play .MID file ");
+        return PLUGIN_OK;
+    }
+    rb->lcd_setfont(0);
+
+#if defined(HAVE_ADJUSTABLE_CPU_FREQ)
+    rb->cpu_boost(true);
+#endif
+
+    printf("%s", parameter);
+    /*   rb->splash(HZ, true, parameter); */
+
+#ifdef RB_PROFILE
+    rb->profile_thread();
+#endif
+
+    retval = midimain(parameter);
+
+#ifdef RB_PROFILE
+    rb->profstop();
+#endif
+
+    rb->pcm_play_stop();
+    rb->pcm_set_frequency(HW_SAMPR_DEFAULT);
+
+#if defined(HAVE_ADJUSTABLE_CPU_FREQ)
+    rb->cpu_boost(false);
+#endif
+
+    rb->splash(HZ, "FINISHED PLAYING");
+
+    if(retval == -1)
+        return PLUGIN_ERROR;
+    return PLUGIN_OK;
+}
+
+bool swap=0;
+bool lastswap=1;
+
+inline void synthbuf(void)
+{
+   long *outptr;
+   register int i;
+   static int currentSample=0;
+   int synthtemp[2];
+
+#ifndef SYNC
+   if(lastswap==swap) return;
+   lastswap=swap;
+
+   outptr=(swap ? gmbuf : gmbuf+BUF_SIZE);
+#else
+   outptr=gmbuf;
+#endif
+
+   for(i=0; i<BUF_SIZE/2; i++)
+   {
+      synthSample(&synthtemp[0], &synthtemp[1]);
+      currentSample++;
+      *outptr=((synthtemp[0]&0xFFFF) << 16) | (synthtemp[1]&0xFFFF);
+      outptr++;
+      if(currentSample==numberOfSamples)
+      {
+         if( tick() == 0 ) quit=1;
+         currentSample=0;
+      }
+   }
+}
+
+void get_more(unsigned char** start, size_t* size)
+{
+#ifndef SYNC
+    if(lastswap!=swap)
+    {
+        printf("Buffer miss!"); // Comment out the printf to make missses less noticable.
+    }
+
+#else
+    synthbuf();  // For some reason midiplayer crashes when an update is forced
+#endif
+
+    *size = BUF_SIZE*sizeof(short);
+#ifndef SYNC
+    *start = (unsigned char*)((swap ? gmbuf : gmbuf + BUF_SIZE));
+    swap=!swap;
+#else
+    *start = (unsigned char*)(gmbuf);
+#endif
+}
+
+int midimain(void * filename)
+{
+    int notesUsed = 0;
+    int a=0;
+    printf("Loading file");
+    mf= loadFile(filename);
+
+    if(mf == NULL)
+    {
+        printf("Error loading file.");
+        return -1;
+    }
+
+    if (initSynth(mf, ROCKBOX_DIR "/patchset/patchset.cfg",
+        ROCKBOX_DIR "/patchset/drums.cfg") == -1)
+        return -1;
+
+//#ifndef SIMULATOR
+    rb->pcm_play_stop();
+#if INPUT_SRC_CAPS != 0
+    /* Select playback */
+    rb->audio_set_input_source(AUDIO_SRC_PLAYBACK, SRCF_PLAYBACK);
+    rb->audio_set_output_source(AUDIO_SRC_PLAYBACK);
+#endif
+    rb->pcm_set_frequency(SAMPLE_RATE); // 44100 22050 11025
+//#endif
+
+    /*
+        * tick() will do one MIDI clock tick. Then, there's a loop here that
+        * will generate the right number of samples per MIDI tick. The whole
+        * MIDI playback is timed in terms of this value.. there are no forced
+        * delays or anything. It just produces enough samples for each tick, and
+        * the playback of these samples is what makes the timings right.
+        *
+        * This seems to work quite well. On a laptop, anyway.
+        */
+
+    printf("Okay, starting sequencing");
+
+    bpm=mf->div*1000000/tempo;
+    numberOfSamples=SAMPLE_RATE/bpm;
+
+
+
+    /* Skip over any junk in the beginning of the file, so start playing */
+    /* after the first note event */
+    do
+    {
+        notesUsed = 0;
+        for(a=0; a<MAX_VOICES; a++)
+            if(voices[a].isUsed == 1)
+                notesUsed++;
+        tick();
+    } while(notesUsed == 0);
+
+    synthbuf();
+//#ifndef SIMULATOR
+    rb->pcm_play_data(&get_more, NULL, 0);
+//#endif
+
+    int vol=0;
+
+    while(!quit)
+    {
+    #ifndef SYNC
+        synthbuf();
+    #endif
+        rb->yield();
+
+        /* Prevent idle poweroff */
+        rb->reset_poweroff_timer();
+
+        /* Code taken from Oscilloscope plugin */
+        switch(rb->button_get(false))
+        {
+                case BTN_UP:
+                case BTN_UP | BUTTON_REPEAT:
+                    vol = rb->global_settings->volume;
+                    if (vol < rb->sound_max(SOUND_VOLUME))
+                    {
+                        vol++;
+                        rb->sound_set(SOUND_VOLUME, vol);
+                        rb->global_settings->volume = vol;
+                    }
+                    break;
+
+                case BTN_DOWN:
+                case BTN_DOWN | BUTTON_REPEAT:
+                    vol = rb->global_settings->volume;
+                    if (vol > rb->sound_min(SOUND_VOLUME))
+                    {
+                        vol--;
+                        rb->sound_set(SOUND_VOLUME, vol);
+                        rb->global_settings->volume = vol;
+                    }
+                    break;
+
+                case BTN_RIGHT:
+                {
+                    /* Skip 3 seconds */
+                    /* Should skip length be retrieved from the RB settings? */
+                    int samp = 3*SAMPLE_RATE;
+                    int tickCount = samp / numberOfSamples;
+                    int a=0;
+                    for(a=0; a<tickCount; a++)
+                        tick();
+                    break;
+                }
+#ifdef BTN_RC_QUIT
+                case BTN_RC_QUIT:
+#endif
+                case BTN_QUIT:
+                    quit=1;
+        }
+
+
+    }
+
+    return 0;
+}