85a226d4e7
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12809 a1c6a512-1295-4272-9138-f99709370657
329 lines
8.1 KiB
C
329 lines
8.1 KiB
C
/***************************************************************************
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* __________ __ ___.
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* Open \______ \ ____ ____ | | _\_ |__ _______ ___
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* Source | _// _ \_/ ___\| |/ /| __ \ / _ \ \/ /
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* Jukebox | | ( <_> ) \___| < | \_\ ( <_> > < <
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* Firmware |____|_ /\____/ \___ >__|_ \|___ /\____/__/\_ \
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* \/ \/ \/ \/ \/
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*
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* Copyright (C) 2005 Karl Kurbjun based on midi2wav by Stepan Moskovchenko
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*
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* All files in this archive are subject to the GNU General Public License.
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* See the file COPYING in the source tree root for full license agreement.
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*
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* This software is distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY
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* KIND, either express or implied.
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*
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****************************************************************************/
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#include "../../plugin.h"
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PLUGIN_HEADER
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PLUGIN_IRAM_DECLARE
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/* variable button definitions */
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#if CONFIG_KEYPAD == RECORDER_PAD
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#define BTN_QUIT BUTTON_OFF
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_UP
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#define BTN_DOWN BUTTON_DOWN
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#elif CONFIG_KEYPAD == ONDIO_PAD
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#define BTN_QUIT BUTTON_OFF
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_UP
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#define BTN_DOWN BUTTON_DOWN
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#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || (CONFIG_KEYPAD == IRIVER_H300_PAD)
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#define BTN_QUIT BUTTON_OFF
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_UP
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#define BTN_DOWN BUTTON_DOWN
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#define BTN_RC_QUIT BUTTON_RC_STOP
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#elif (CONFIG_KEYPAD == IPOD_3G_PAD) || (CONFIG_KEYPAD == IPOD_4G_PAD)
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#define BTN_QUIT (BUTTON_SELECT | BUTTON_MENU)
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_SCROLL_FWD
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#define BTN_DOWN BUTTON_SCROLL_BACK
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#elif (CONFIG_KEYPAD == GIGABEAT_PAD)
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#define BTN_QUIT BUTTON_POWER
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_VOL_UP
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#define BTN_DOWN BUTTON_VOL_DOWN
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#elif (CONFIG_KEYPAD == SANSA_E200_PAD)
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#define BTN_QUIT BUTTON_POWER
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_UP
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#define BTN_DOWN BUTTON_DOWN
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#elif CONFIG_KEYPAD == IAUDIO_X5M5_PAD
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#define BTN_QUIT BUTTON_POWER
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_UP
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#define BTN_DOWN BUTTON_DOWN
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#elif CONFIG_KEYPAD == IRIVER_H10_PAD
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#define BTN_QUIT BUTTON_POWER
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#define BTN_RIGHT BUTTON_RIGHT
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#define BTN_UP BUTTON_SCROLL_UP
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#define BTN_DOWN BUTTON_SCROLL_DOWN
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#endif
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#define FRACTSIZE 10
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#ifndef SIMULATOR
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#define SAMPLE_RATE 22050 // 44100 22050 11025
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#define MAX_VOICES 14 // Note: 24 midi channels is the minimum general midi
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// spec implementation
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#else // Simulator requires 44100, and we can afford to use more voices
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#define SAMPLE_RATE 44100
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#define MAX_VOICES 48
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#endif
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#define BUF_SIZE 512
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#define NBUF 2
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#undef SYNC
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#ifdef SIMULATOR
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#define SYNC
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#endif
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struct MIDIfile * mf IBSS_ATTR;
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int numberOfSamples IBSS_ATTR;
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long bpm IBSS_ATTR;
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#include "midi/midiutil.c"
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#include "midi/guspat.h"
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#include "midi/guspat.c"
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#include "midi/sequencer.c"
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#include "midi/midifile.c"
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#include "midi/synth.c"
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short gmbuf[BUF_SIZE*NBUF] IBSS_ATTR;
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int quit=0;
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struct plugin_api * rb;
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enum plugin_status plugin_start(struct plugin_api* api, void* parameter)
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{
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int retval = 0;
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PLUGIN_IRAM_INIT(api)
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rb = api;
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if(parameter == NULL)
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{
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rb->splash(HZ*2, " Play .MID file ");
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return PLUGIN_OK;
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}
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rb->lcd_setfont(0);
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#if defined(HAVE_ADJUSTABLE_CPU_FREQ)
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rb->cpu_boost(true);
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#endif
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printf("\n%s", parameter);
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/* rb->splash(HZ, true, parameter); */
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#ifdef RB_PROFILE
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rb->profile_thread();
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#endif
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retval = midimain(parameter);
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#ifdef RB_PROFILE
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rb->profstop();
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#endif
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rb->pcm_play_stop();
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rb->pcm_set_frequency(HW_SAMPR_DEFAULT);
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#if defined(HAVE_ADJUSTABLE_CPU_FREQ)
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rb->cpu_boost(false);
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#endif
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rb->splash(HZ, "FINISHED PLAYING");
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if(retval == -1)
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return PLUGIN_ERROR;
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return PLUGIN_OK;
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}
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bool swap=0;
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bool lastswap=1;
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inline void synthbuf(void)
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{
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short *outptr;
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register int i;
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static int currentSample=0;
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int synthtemp[2];
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#ifndef SYNC
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if(lastswap==swap) return;
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lastswap=swap;
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outptr=(swap ? gmbuf : gmbuf+BUF_SIZE);
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#else
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outptr=gmbuf;
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#endif
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for(i=0; i<BUF_SIZE/2; i++)
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{
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synthSample(&synthtemp[0], &synthtemp[1]);
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currentSample++;
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*outptr=synthtemp[0]&0xFFFF;
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outptr++;
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*outptr=synthtemp[1]&0xFFFF;
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outptr++;
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if(currentSample==numberOfSamples)
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{
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if( tick() == 0 ) quit=1;
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currentSample=0;
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}
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}
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}
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void get_more(unsigned char** start, size_t* size)
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{
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#ifndef SYNC
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if(lastswap!=swap)
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{
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printf("Buffer miss!"); // Comment out the printf to make missses less noticable.
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}
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#else
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synthbuf(); // For some reason midiplayer crashes when an update is forced
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#endif
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*size = BUF_SIZE*sizeof(short);
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#ifndef SYNC
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*start = (unsigned char*)((swap ? gmbuf : gmbuf + BUF_SIZE));
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swap=!swap;
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#else
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*start = (unsigned char*)(gmbuf);
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#endif
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}
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int midimain(void * filename)
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{
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int notesUsed = 0;
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int a=0;
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printf("\nLoading file");
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mf= loadFile(filename);
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if(mf == NULL)
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{
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printf("\nError loading file.");
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return -1;
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}
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if (initSynth(mf, "/.rockbox/patchset/patchset.cfg", "/.rockbox/patchset/drums.cfg") == -1)
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return -1;
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//#ifndef SIMULATOR
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rb->pcm_play_stop();
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rb->pcm_set_frequency(SAMPLE_RATE); // 44100 22050 11025
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//#endif
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/*
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* tick() will do one MIDI clock tick. Then, there's a loop here that
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* will generate the right number of samples per MIDI tick. The whole
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* MIDI playback is timed in terms of this value.. there are no forced
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* delays or anything. It just produces enough samples for each tick, and
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* the playback of these samples is what makes the timings right.
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*
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* This seems to work quite well. On a laptop, anyway.
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*/
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printf("\nOkay, starting sequencing");
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bpm=mf->div*1000000/tempo;
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numberOfSamples=SAMPLE_RATE/bpm;
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/* Skip over any junk in the beginning of the file, so start playing */
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/* after the first note event */
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do
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{
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notesUsed = 0;
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for(a=0; a<MAX_VOICES; a++)
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if(voices[a].isUsed == 1)
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notesUsed++;
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tick();
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} while(notesUsed == 0);
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synthbuf();
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//#ifndef SIMULATOR
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rb->pcm_play_data(&get_more, NULL, 0);
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//#endif
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int vol=0;
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while(!quit)
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{
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#ifndef SYNC
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synthbuf();
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#endif
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rb->yield();
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/* Code taken from Oscilloscope plugin */
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switch(rb->button_get(false))
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{
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case BTN_UP:
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case BTN_UP | BUTTON_REPEAT:
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vol = rb->global_settings->volume;
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if (vol < rb->sound_max(SOUND_VOLUME))
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{
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vol++;
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rb->sound_set(SOUND_VOLUME, vol);
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rb->global_settings->volume = vol;
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}
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break;
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case BTN_DOWN:
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case BTN_DOWN | BUTTON_REPEAT:
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vol = rb->global_settings->volume;
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if (vol > rb->sound_min(SOUND_VOLUME))
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{
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vol--;
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rb->sound_set(SOUND_VOLUME, vol);
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rb->global_settings->volume = vol;
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}
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break;
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case BTN_RIGHT:
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{
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/* Skip 3 seconds */
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/* Should skip length be retrieved from the RB settings? */
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int samp = 3*SAMPLE_RATE;
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int tickCount = samp / numberOfSamples;
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int a=0;
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for(a=0; a<tickCount; a++)
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tick();
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break;
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}
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#ifdef BTN_RC_QUIT
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case BTN_RC_QUIT:
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#endif
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case BTN_QUIT:
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quit=1;
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}
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}
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return 0;
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}
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