Change the test_sampr plugin around to use a constant pitch + white noise which makes it more informative about the hardware state. Add a volume control for targets without a separate one.
git-svn-id: svn://svn.rockbox.org/rockbox/trunk@19186 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
parent
046776c292
commit
baf4b6102d
1 changed files with 223 additions and 185 deletions
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@ -21,122 +21,177 @@
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#include "plugin.h"
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#include "plugin.h"
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#include "lib/oldmenuapi.h"
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#include "lib/oldmenuapi.h"
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/* This plugin generates a 1kHz tone + noise in order to quickly verify
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* hardware samplerate setup is operating correctly.
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*
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* While switching to different frequencies, the pitch of the tone should
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* remain constant whereas the upper harmonics of the noise should vary
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* with sample rate.
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*/
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PLUGIN_HEADER
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PLUGIN_HEADER
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PLUGIN_IRAM_DECLARE;
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const struct plugin_api *rb;
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const struct plugin_api *rb;
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enum
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static int hw_freq IDATA_ATTR = HW_FREQ_DEFAULT;
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{
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static unsigned long hw_sampr IDATA_ATTR = HW_SAMPR_DEFAULT;
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TONE_SINE = 0,
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TONE_TRIANGLE,
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TONE_SAWTOOTH,
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TONE_SQUARE,
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NUM_WAVEFORMS
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};
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static int freq = HW_FREQ_DEFAULT;
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static int gen_thread_stack[DEFAULT_STACK_SIZE/sizeof(int)] IBSS_ATTR;
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static int waveform = TONE_SINE;
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static bool gen_quit IBSS_ATTR;
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static struct thread_entry *gen_thread_p;
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/* A441 at 44100Hz. Pitch will change with changing samplerate.
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#define OUTPUT_CHUNK_COUNT (1 << 1)
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Test different waveforms to detect any aliasing in signal which
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#define OUTPUT_CHUNK_MASK (OUTPUT_CHUNK_COUNT-1)
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indicates duplicated/dropped samples */
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#define OUTPUT_CHUNK_SAMPLES 1152
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static const int16_t A441[NUM_WAVEFORMS][100] =
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#define OUTPUT_CHUNK_SIZE (OUTPUT_CHUNK_SAMPLES*sizeof(int16_t)*2)
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static uint16_t output_buf[OUTPUT_CHUNK_COUNT][OUTPUT_CHUNK_SAMPLES*2]
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IBSS_ATTR __attribute__((aligned(4)));
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static int output_head IBSS_ATTR;
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static int output_tail IBSS_ATTR;
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static int output_step IBSS_ATTR;
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static uint32_t gen_phase_step IBSS_ATTR;
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static const uint32_t gen_frequency = 1000;
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/* fsin shamelessly stolen from signal_gen.c by Thom Johansen (preglow) */
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/* Good quality sine calculated by linearly interpolating
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* a 128 sample sine table. First harmonic has amplitude of about -84 dB.
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* phase has range from 0 to 0xffffffff, representing 0 and
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* 2*pi respectively.
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* Return value is a signed value from LONG_MIN to LONG_MAX, representing
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* -1 and 1 respectively.
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*/
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static int16_t ICODE_ATTR fsin(uint32_t phase)
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{
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{
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[TONE_SINE] =
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/* 128 sixteen bit sine samples + guard point */
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static const int16_t sinetab[129] ICONST_ATTR =
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{
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{
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0, 2057, 4106, 6139, 8148,
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0, 1607, 3211, 4807, 6392, 7961, 9511, 11038,
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10125, 12062, 13951, 15785, 17557,
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12539, 14009, 15446, 16845, 18204, 19519, 20787, 22004,
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19259, 20886, 22430, 23886, 25247,
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23169, 24278, 25329, 26318, 27244, 28105, 28897, 29621,
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26509, 27666, 28713, 29648, 30465,
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30272, 30851, 31356, 31785, 32137, 32412, 32609, 32727,
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31163, 31737, 32186, 32508, 32702,
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32767, 32727, 32609, 32412, 32137, 31785, 31356, 30851,
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32767, 32702, 32508, 32186, 31737,
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30272, 29621, 28897, 28105, 27244, 26318, 25329, 24278,
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31163, 30465, 29648, 28713, 27666,
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23169, 22004, 20787, 19519, 18204, 16845, 15446, 14009,
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26509, 25247, 23886, 22430, 20886,
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12539, 11038, 9511, 7961, 6392, 4807, 3211, 1607,
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19259, 17557, 15785, 13951, 12062,
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0, -1607, -3211, -4807, -6392, -7961, -9511, -11038,
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10125, 8148, 6139, 4106, 2057,
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-12539, -14009, -15446, -16845, -18204, -19519, -20787, -22004,
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0, -2057, -4106, -6139, -8148,
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-23169, -24278, -25329, -26318, -27244, -28105, -28897, -29621,
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-10125, -12062, -13951, -15785, -17557,
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-30272, -30851, -31356, -31785, -32137, -32412, -32609, -32727,
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-19259, -20886, -22430, -23886, -25247,
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-32767, -32727, -32609, -32412, -32137, -31785, -31356, -30851,
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-26509, -27666, -28713, -29648, -30465,
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-30272, -29621, -28897, -28105, -27244, -26318, -25329, -24278,
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-31163, -31737, -32186, -32508, -32702,
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-23169, -22004, -20787, -19519, -18204, -16845, -15446, -14009,
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-32767, -32702, -32508, -32186, -31737,
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-12539, -11038, -9511, -7961, -6392, -4807, -3211, -1607,
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-31163, -30465, -29648, -28713, -27666,
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0,
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-26509, -25247, -23886, -22430, -20886,
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};
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-19259, -17557, -15785, -13951, -12062,
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-10125, -8148, -6139, -4106, -2057,
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unsigned int pos = phase >> 25;
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},
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unsigned short frac = (phase & 0x01ffffff) >> 9;
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[TONE_TRIANGLE] =
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short diff = sinetab[pos + 1] - sinetab[pos];
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return sinetab[pos] + (frac*diff >> 16);
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}
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/* ISR handler to get next block of data */
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static void get_more(unsigned char **start, size_t *size)
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{
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/* Free previous buffer */
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output_head += output_step;
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output_step = 0;
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*start = (unsigned char *)output_buf[output_head & OUTPUT_CHUNK_MASK];
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*size = OUTPUT_CHUNK_SIZE;
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/* Keep repeating previous if source runs low */
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if (output_head != output_tail)
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output_step = 1;
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}
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static void ICODE_ATTR gen_thread_func(void)
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{
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uint32_t gen_random = *rb->current_tick;
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uint32_t gen_phase = 0;
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while (!gen_quit)
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{
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{
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0, 1310, 2621, 3932, 5242,
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int16_t *p = output_buf[output_tail & OUTPUT_CHUNK_MASK];
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6553, 7864, 9174, 10485, 11796,
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int i = OUTPUT_CHUNK_SAMPLES;
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13106, 14417, 15728, 17038, 18349,
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19660, 20970, 22281, 23592, 24902,
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while (output_tail - output_head >= OUTPUT_CHUNK_COUNT)
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26213, 27524, 28834, 30145, 31456,
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{
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32767, 31456, 30145, 28834, 27524,
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rb->sleep(0);
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26213, 24902, 23592, 22281, 20970,
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if (gen_quit)
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19660, 18349, 17038, 15728, 14417,
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return;
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13106, 11796, 10485, 9174, 7864,
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}
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6553, 5242, 3932, 2621, 1310,
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0, -1310, -2621, -3932, -5242,
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while (--i >= 0)
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-6553, -7864, -9174, -10485, -11796,
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{
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-13106, -14417, -15728, -17038, -18349,
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int32_t val = fsin(gen_phase);
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-19660, -20970, -22281, -23592, -24902,
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int32_t rnd = (int16_t)gen_random;
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-26213, -27524, -28834, -30145, -31456,
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-32767, -31456, -30145, -28834, -27524,
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gen_random = gen_random*0x0019660dL + 0x3c6ef35fL;
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-26213, -24902, -23592, -22281, -20970,
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-19660, -18349, -17038, -15728, -14417,
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val = (rnd + 2*val) / 3;
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-13106, -11796, -10485, -9174, -7864,
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-6553, -5242, -3932, -2621, -1310,
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*p++ = val;
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},
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*p++ = val;
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[TONE_SAWTOOTH] =
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{
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gen_phase += gen_phase_step;
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-32767, -32111, -31456, -30800, -30145,
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}
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-29490, -28834, -28179, -27524, -26868,
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-26213, -25558, -24902, -24247, -23592,
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output_tail++;
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-22936, -22281, -21626, -20970, -20315,
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-19660, -19004, -18349, -17694, -17038,
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rb->yield();
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-16383, -15728, -15072, -14417, -13762,
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-13106, -12451, -11796, -11140, -10485,
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-9830, -9174, -8519, -7864, -7208,
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-6553, -5898, -5242, -4587, -3932,
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-3276, -2621, -1966, -1310, -655,
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0, 655, 1310, 1966, 2621,
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3276, 3932, 4587, 5242, 5898,
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6553, 7208, 7864, 8519, 9174,
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9830, 10485, 11140, 11796, 12451,
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13106, 13762, 14417, 15072, 15728,
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16383, 17038, 17694, 18349, 19004,
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19660, 20315, 20970, 21626, 22281,
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22936, 23592, 24247, 24902, 25558,
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26213, 26868, 27524, 28179, 28834,
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29490, 30145, 30800, 31456, 32111,
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},
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[TONE_SQUARE] =
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{
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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32767, 32767, 32767, 32767, 32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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-32767, -32767, -32767, -32767, -32767,
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}
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}
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};
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}
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void play_waveform(void)
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static void update_gen_step(void)
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{
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gen_phase_step = 0x100000000ull*gen_frequency / hw_sampr;
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}
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static void output_clear(void)
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{
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rb->pcm_play_lock();
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rb->memset(output_buf, 0, sizeof (output_buf));
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output_head = 0;
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output_tail = 0;
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rb->pcm_play_unlock();
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}
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/* Called to switch samplerate on the fly */
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static void set_frequency(int index)
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{
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hw_freq = index;
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hw_sampr = rb->hw_freq_sampr[index];
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output_clear();
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update_gen_step();
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rb->pcm_set_frequency(hw_sampr);
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rb->pcm_apply_settings();
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}
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#ifndef HAVE_VOLUME_IN_LIST
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static void set_volume(int value)
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{
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rb->global_settings->volume = value;
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rb->sound_set(SOUND_VOLUME, value);
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}
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static void format_volume(char *buf, size_t len, int value, const char *unit)
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{
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rb->snprintf(buf, len, "%d %s", rb->sound_val2phys(SOUND_VOLUME, value),
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rb->sound_unit(SOUND_VOLUME));
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(void)unit;
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}
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#endif /* HAVE_VOLUME_IN_LIST */
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static void play_tone(bool volume_set)
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{
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{
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static struct opt_items names[HW_NUM_FREQ] =
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static struct opt_items names[HW_NUM_FREQ] =
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{
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{
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@ -154,52 +209,9 @@ void play_waveform(void)
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HW_HAVE_8_( [HW_FREQ_8 ] = { "8kHz", -1 },)
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HW_HAVE_8_( [HW_FREQ_8 ] = { "8kHz", -1 },)
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};
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};
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/* 50 cycles of wavform */
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int freq = hw_freq;
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static int32_t audio[5000];
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void init_audio(int type)
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{
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int i;
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/* Signal amplitudes to adjust for somewhat equal percieved
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volume */
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int amps[NUM_WAVEFORMS] =
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{
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[TONE_SINE] = 8191,
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[TONE_TRIANGLE] = 5119,
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[TONE_SAWTOOTH] = 2047,
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[TONE_SQUARE] = 1535
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};
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/* Initialize one cycle of the waveform */
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for (i = 0; i < 100; i++)
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{
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uint16_t val = amps[type]*A441[type][i]/32767;
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audio[i] = (val << 16) | val;
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}
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/* Duplicate it 49 more times */
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for (i = 1; i < 50; i++)
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{
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rb->memcpy(audio + i*100, audio, 100*sizeof(int32_t));
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}
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}
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/* ISR handler to get next block of data */
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void get_more(unsigned char **start, size_t *size)
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{
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*start = (unsigned char *)audio;
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*size = sizeof (audio);
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}
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/* Called to switch samplerate on the fly */
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void set_frequency(int index)
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{
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rb->pcm_set_frequency(rb->hw_freq_sampr[index]);
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rb->pcm_apply_settings();
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}
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rb->audio_stop();
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rb->audio_stop();
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rb->sound_set(SOUND_VOLUME, rb->sound_default(SOUND_VOLUME));
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#if INPUT_SRC_CAPS != 0
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#if INPUT_SRC_CAPS != 0
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/* Select playback */
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/* Select playback */
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@ -217,19 +229,41 @@ void play_waveform(void)
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rb->audio_set_output_source(AUDIO_SRC_PLAYBACK);
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rb->audio_set_output_source(AUDIO_SRC_PLAYBACK);
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#endif
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#endif
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rb->pcm_apply_settings();
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gen_quit = false;
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output_clear();
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update_gen_step();
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gen_thread_p = rb->create_thread(gen_thread_func, gen_thread_stack,
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sizeof(gen_thread_stack), 0,
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"test_sampr generator"
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IF_PRIO(, PRIORITY_PLAYBACK)
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IF_COP(, CPU));
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init_audio(waveform);
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rb->pcm_play_data(get_more, NULL, 0);
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rb->pcm_play_data(get_more, NULL, 0);
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rb->set_option("Sample Rate", &freq, INT, names,
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#ifndef HAVE_VOLUME_IN_LIST
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HW_NUM_FREQ, set_frequency);
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if (volume_set)
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{
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int volume = rb->global_settings->volume;
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rb->set_int("Volume", NULL, -1, &volume,
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set_volume, 1, rb->sound_min(SOUND_VOLUME),
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rb->sound_max(SOUND_VOLUME), format_volume);
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}
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else
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#endif /* HAVE_VOLUME_IN_LIST */
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{
|
||||||
|
rb->set_option("Sample Rate", &freq, INT, names,
|
||||||
|
HW_NUM_FREQ, set_frequency);
|
||||||
|
(void)volume_set;
|
||||||
|
}
|
||||||
|
|
||||||
|
gen_quit = true;
|
||||||
|
|
||||||
|
rb->thread_wait(gen_thread_p);
|
||||||
|
|
||||||
rb->pcm_play_stop();
|
rb->pcm_play_stop();
|
||||||
|
|
||||||
while (rb->pcm_is_playing())
|
|
||||||
rb->yield();
|
|
||||||
|
|
||||||
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
|
#ifdef HAVE_ADJUSTABLE_CPU_FREQ
|
||||||
rb->cpu_boost(false);
|
rb->cpu_boost(false);
|
||||||
#endif
|
#endif
|
||||||
|
@ -239,41 +273,42 @@ void play_waveform(void)
|
||||||
rb->pcm_set_frequency(HW_FREQ_DEFAULT);
|
rb->pcm_set_frequency(HW_FREQ_DEFAULT);
|
||||||
}
|
}
|
||||||
|
|
||||||
void set_waveform(void)
|
|
||||||
{
|
|
||||||
static struct opt_items names[NUM_WAVEFORMS] =
|
|
||||||
{
|
|
||||||
[TONE_SINE] = { "Sine", -1 },
|
|
||||||
[TONE_TRIANGLE] = { "Triangle", -1 },
|
|
||||||
[TONE_SAWTOOTH] = { "Sawtooth", -1 },
|
|
||||||
[TONE_SQUARE] = { "Square", -1 },
|
|
||||||
};
|
|
||||||
|
|
||||||
rb->set_option("Waveform", &waveform, INT, names,
|
|
||||||
NUM_WAVEFORMS, NULL);
|
|
||||||
}
|
|
||||||
|
|
||||||
/* Tests hardware sample rate switching */
|
/* Tests hardware sample rate switching */
|
||||||
/* TODO: needs a volume control */
|
/* TODO: needs a volume control */
|
||||||
enum plugin_status plugin_start(const struct plugin_api *api, const void *parameter)
|
enum plugin_status plugin_start(const struct plugin_api *api,
|
||||||
|
const void *parameter)
|
||||||
{
|
{
|
||||||
|
enum
|
||||||
|
{
|
||||||
|
__TEST_SAMPR_MENUITEM_FIRST = -1,
|
||||||
|
#ifndef HAVE_VOLUME_IN_LIST
|
||||||
|
MENU_VOL_SET,
|
||||||
|
#endif /* HAVE_VOLUME_IN_LIST */
|
||||||
|
MENU_SAMPR_SET,
|
||||||
|
MENU_QUIT,
|
||||||
|
};
|
||||||
|
|
||||||
static const struct menu_item items[] =
|
static const struct menu_item items[] =
|
||||||
{
|
{
|
||||||
{ "Set Waveform", NULL },
|
#ifndef HAVE_VOLUME_IN_LIST
|
||||||
{ "Play Waveform", NULL },
|
[MENU_VOL_SET] =
|
||||||
{ "Quit", NULL },
|
{ "Set Volume", NULL },
|
||||||
|
#endif /* HAVE_VOLUME_IN_LIST */
|
||||||
|
[MENU_SAMPR_SET] =
|
||||||
|
{ "Set Samplerate", NULL },
|
||||||
|
[MENU_QUIT] =
|
||||||
|
{ "Quit", NULL },
|
||||||
};
|
};
|
||||||
|
|
||||||
bool exit = false;
|
bool exit = false;
|
||||||
int m;
|
int m;
|
||||||
bool talk_menu;
|
|
||||||
|
|
||||||
|
/* Disable all talking before initializing IRAM */
|
||||||
|
api->talk_disable(true);
|
||||||
|
|
||||||
|
PLUGIN_IRAM_INIT(api);
|
||||||
rb = api;
|
rb = api;
|
||||||
|
|
||||||
/* Have to shut up voice menus or it will mess up our waveform playback */
|
|
||||||
talk_menu = rb->global_settings->talk_menu;
|
|
||||||
rb->global_settings->talk_menu = false;
|
|
||||||
|
|
||||||
m = menu_init(rb, items, ARRAYLEN(items),
|
m = menu_init(rb, items, ARRAYLEN(items),
|
||||||
NULL, NULL, NULL, NULL);
|
NULL, NULL, NULL, NULL);
|
||||||
|
|
||||||
|
@ -283,13 +318,16 @@ enum plugin_status plugin_start(const struct plugin_api *api, const void *parame
|
||||||
|
|
||||||
switch (result)
|
switch (result)
|
||||||
{
|
{
|
||||||
case 0:
|
#ifndef HAVE_VOLUME_IN_LIST
|
||||||
set_waveform();
|
case MENU_VOL_SET:
|
||||||
|
play_tone(true);
|
||||||
break;
|
break;
|
||||||
case 1:
|
#endif /* HAVE_VOLUME_IN_LIST */
|
||||||
play_waveform();
|
case MENU_SAMPR_SET:
|
||||||
|
play_tone(false);
|
||||||
break;
|
break;
|
||||||
case 2:
|
|
||||||
|
case MENU_QUIT:
|
||||||
exit = true;
|
exit = true;
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
@ -297,7 +335,7 @@ enum plugin_status plugin_start(const struct plugin_api *api, const void *parame
|
||||||
|
|
||||||
menu_exit(m);
|
menu_exit(m);
|
||||||
|
|
||||||
rb->global_settings->talk_menu = talk_menu;
|
rb->talk_disable(false);
|
||||||
|
|
||||||
return PLUGIN_OK;
|
return PLUGIN_OK;
|
||||||
(void)parameter;
|
(void)parameter;
|
||||||
|
|
Loading…
Reference in a new issue