Accept FS#6918 - Remove Nested Functions by Tim Ross. Adjust some names. Hunt down and remove the remaining ones in the recording system as well.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@12955 a1c6a512-1295-4272-9138-f99709370657

6 files changed, 151 insertions, 147 deletions

diff --git a/apps/codecs/aiff_enc.c b/apps/codecs/aiff_enc.c
index 1de25a4..2292bcc 100644
--- a/apps/codecs/aiff_enc.c
+++ b/apps/codecs/aiff_enc.c
@@ -221,6 +221,22 @@ STATICIRAM void enc_events_callback(enum enc_events event, void *data)
 } /* enc_events_callback */
 
 /* convert native pcm samples to aiff format samples */
+static inline void sample_to_mono(uint32_t **src, uint32_t **dst)
+{
+    int32_t lr1, lr2;
+
+    lr1 = *(*src)++;
+    lr1 = (int16_t)lr1 + (lr1 >> 16) + err;
+    err = lr1 & 1;
+    lr1 >>= 1;
+
+    lr2 = *(*src)++;
+    lr2 = (int16_t)lr2 + (lr2 >> 16) + err;
+    err = lr2 & 1;
+    lr2 >>= 1;
+    *(*dst)++ = swap_odd_even_le32((lr1 << 16) | (uint16_t)lr2);
+} /* sample_to_mono */
+
 STATICIRAM void chunk_to_aiff_format(uint32_t *src, uint32_t *dst) ICODE_ATTR;
 STATICIRAM void chunk_to_aiff_format(uint32_t *src, uint32_t *dst)
 {
@@ -238,32 +254,16 @@ STATICIRAM void chunk_to_aiff_format(uint32_t *src, uint32_t *dst)
          */
         uint32_t *src_end = src + PCM_SAMP_PER_CHUNK;
 
-        inline void to_mono(uint32_t **src, uint32_t **dst)
-        {
-            int32_t lr1, lr2;
-
-            lr1 = *(*src)++;
-            lr1 = (int16_t)lr1 + (lr1 >> 16) + err;
-            err = lr1 & 1;
-            lr1 >>= 1;
-
-            lr2 = *(*src)++;
-            lr2 = (int16_t)lr2 + (lr2 >> 16) + err;
-            err = lr2 & 1;
-            lr2 >>= 1;
-            *(*dst)++ = swap_odd_even_le32((lr1 << 16) | (uint16_t)lr2);
-        } /* to_mono */
-
         do
         {
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
         }
         while (src < src_end);
     }
diff --git a/apps/codecs/wav_enc.c b/apps/codecs/wav_enc.c
index e14b04d..ff77f13 100644
--- a/apps/codecs/wav_enc.c
+++ b/apps/codecs/wav_enc.c
@@ -209,6 +209,22 @@ STATICIRAM void enc_events_callback(enum enc_events event, void *data)
 } /* enc_events_callback */
 
 /* convert native pcm samples to wav format samples */
+static inline void sample_to_mono(uint32_t **src, uint32_t **dst)
+{
+    int32_t lr1, lr2;
+
+    lr1 = *(*src)++;
+    lr1 = (int16_t)lr1 + (lr1 >> 16) + err;
+    err = lr1 & 1;
+    lr1 >>= 1;
+
+    lr2 = *(*src)++;
+    lr2 = (int16_t)lr2 + (lr2 >> 16) + err;
+    err = lr2 & 1;
+    lr2 >>= 1; 
+    *(*dst)++ = swap_odd_even_be32((lr1 << 16) | (uint16_t)lr2);
+} /* sample_to_mono */
+
 STATICIRAM void chunk_to_wav_format(uint32_t *src, uint32_t *dst) ICODE_ATTR;
 STATICIRAM void chunk_to_wav_format(uint32_t *src, uint32_t *dst)
 {
@@ -226,32 +242,16 @@ STATICIRAM void chunk_to_wav_format(uint32_t *src, uint32_t *dst)
          */
         uint32_t *src_end = src + PCM_SAMP_PER_CHUNK;
 
-        inline void to_mono(uint32_t **src, uint32_t **dst)
-        {
-            int32_t lr1, lr2;
-
-            lr1 = *(*src)++;
-            lr1 = (int16_t)lr1 + (lr1 >> 16) + err;
-            err = lr1 & 1;
-            lr1 >>= 1;
-
-            lr2 = *(*src)++;
-            lr2 = (int16_t)lr2 + (lr2 >> 16) + err;
-            err = lr2 & 1;
-            lr2 >>= 1; 
-            *(*dst)++ = swap_odd_even_be32((lr1 << 16) | (uint16_t)lr2);
-        } /* to_mono */
-
         do
         {
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
-            to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
+            sample_to_mono(&src, &dst);
         }
         while (src < src_end);
     }
diff --git a/apps/codecs/wavpack_enc.c b/apps/codecs/wavpack_enc.c
index de8fe80..7b6484d 100644
--- a/apps/codecs/wavpack_enc.c
+++ b/apps/codecs/wavpack_enc.c
@@ -99,6 +99,25 @@ static const struct riff_header riff_header =
     /* (*) updated during ENC_END_FILE event */
 };
 
+static inline void sample_to_int32_mono(int32_t **src, int32_t **dst)
+{
+    int32_t t = *(*src)++;
+    /* endianness irrelevant */
+    t = (int16_t)t + (t >> 16) + err;
+    err = t & 1;
+    *(*dst)++ = t >> 1;
+} /* sample_to_int32_mono */
+
+static inline void sample_to_int32_stereo(int32_t **src, int32_t **dst)
+{
+    int32_t t = *(*src)++;
+#ifdef ROCKBOX_BIG_ENDIAN
+    *(*dst)++ = t >> 16, *(*dst)++ = (int16_t)t;
+#else
+    *(*dst)++ = (int16_t)t, *(*dst)++ = t >> 16;
+#endif
+} /* sample_to_int32_stereo */
+
 STATICIRAM void chunk_to_int32(int32_t *src) ICODE_ATTR;
 STATICIRAM void chunk_to_int32(int32_t *src)
 {
@@ -123,28 +142,19 @@ STATICIRAM void chunk_to_int32(int32_t *src)
          *  |llllllllllllllll|rrrrrrrrrrrrrrrr| =>
          *  |mmmmmmmmmmmmmmmmmmmmmmmmmmmmmmmm|
          */
-        inline void to_int32(int32_t **src, int32_t **dst)
-        {
-            int32_t t = *(*src)++;
-            /* endianness irrelevant */
-            t = (int16_t)t + (t >> 16) + err;
-            err = t & 1;
-            *(*dst)++ = t >> 1;
-        } /* to_int32 */
-
         do
         {
             /* read 10 longs and write 10 longs */
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
+            sample_to_int32_mono(&src, &dst);
         }
         while(src < src_end);
 
@@ -156,29 +166,19 @@ STATICIRAM void chunk_to_int32(int32_t *src)
          *  |llllllllllllllll|rrrrrrrrrrrrrrrr| =>
          *  |llllllllllllllllllllllllllllllll|rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr|
          */
-        inline void to_int32(int32_t **src, int32_t **dst)
-        {
-            int32_t t = *(*src)++;
-#ifdef ROCKBOX_BIG_ENDIAN
-            *(*dst)++ = t >> 16, *(*dst)++ = (int16_t)t;
-#else
-            *(*dst)++ = (int16_t)t, *(*dst)++ = t >> 16;
-#endif
-        } /* to_int32 */
-
         do
         {
             /* read 10 longs and write 20 longs */
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
-            to_int32(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
+            sample_to_int32_stereo(&src, &dst);
         }
         while (src < src_end);
 
diff --git a/apps/dsp.c b/apps/dsp.c
index 20ce1e6..609b2d6 100644
--- a/apps/dsp.c
+++ b/apps/dsp.c
@@ -1234,26 +1234,26 @@ int dsp_stereo_mode(void)
     return dsp->stereo_mode;
 }
 
-bool dsp_configure(int setting, intptr_t value)
+static void dsp_set_gain_var(long *var, long value)
 {
-    void set_gain_var(long *var, long value)
+    /* Voice shouldn't mess with these */
+    if (dsp == audio_dsp)
     {
-        /* Voice shouldn't mess with these */
-        if (dsp == audio_dsp)
-        {
-            *var = value;
-            new_gain = true;
-        }
+        *var = value;
+        new_gain = true;
     }
+}
 
-    void update_functions(void)
-    {
-        sample_input_new_format();
-        sample_output_new_format();
-        if (dsp == audio_dsp)
-            dsp_set_crossfeed(crossfeed_enabled);
-    }
+static void dsp_update_functions(void)
+{
+    sample_input_new_format();
+    sample_output_new_format();
+    if (dsp == audio_dsp)
+        dsp_set_crossfeed(crossfeed_enabled);
+}
 
+bool dsp_configure(int setting, intptr_t value)
+{
     switch (setting)
     {
     case DSP_SWITCH_CODEC:
@@ -1305,7 +1305,7 @@ bool dsp_configure(int setting, intptr_t value)
     case DSP_SET_STEREO_MODE:
         dsp->stereo_mode = value;
         dsp->data.num_channels = value == STEREO_MONO ? 1 : 2;
-        update_functions();
+        dsp_update_functions();
         break;
 
     case DSP_RESET:
@@ -1328,7 +1328,7 @@ bool dsp_configure(int setting, intptr_t value)
             new_gain   = true;
         }
 
-        update_functions();
+        dsp_update_functions();
         resampler_new_delta();
         break;
 
@@ -1340,19 +1340,19 @@ bool dsp_configure(int setting, intptr_t value)
         break;
 
     case DSP_SET_TRACK_GAIN:
-        set_gain_var(&track_gain, value);
+        dsp_set_gain_var(&track_gain, value);
         break;
 
     case DSP_SET_ALBUM_GAIN:
-        set_gain_var(&album_gain, value);
+        dsp_set_gain_var(&album_gain, value);
         break;
 
     case DSP_SET_TRACK_PEAK:
-        set_gain_var(&track_peak, value);
+        dsp_set_gain_var(&track_peak, value);
         break;
 
     case DSP_SET_ALBUM_PEAK:
-        set_gain_var(&album_peak, value);
+        dsp_set_gain_var(&album_peak, value);
         break;
 
     default:
diff --git a/apps/recorder/radio.c b/apps/recorder/radio.c
index 5e0185d..cf305ca 100644
--- a/apps/recorder/radio.c
+++ b/apps/recorder/radio.c
@@ -106,6 +106,7 @@ static const struct fm_region_setting fm_region[] = {
 static int curr_preset = -1;
 static int curr_freq;
 static int radio_mode = RADIO_SCAN_MODE;
+static int search_dir = 0;
 
 static int radio_status = FMRADIO_OFF;
 static bool in_screen = false; 
@@ -389,6 +390,14 @@ static void next_station(int direction)
     remember_frequency();
 }
 
+/* Ends an in-progress search */
+static void end_search(void)
+{
+    if (search_dir != 0 && radio_status == FMRADIO_PLAYING)
+        radio_set(RADIO_MUTE, 0);
+    search_dir = 0;
+}
+
 int radio_screen(void)
 {
     char buf[MAX_PATH];
@@ -396,7 +405,6 @@ int radio_screen(void)
     int ret_val = GO_TO_ROOT;
     int button;
     int i;
-    int search_dir = 0;
     bool stereo = false, last_stereo = false;
     int fh;
     int top_of_screen = 0;
@@ -425,14 +433,6 @@ int radio_screen(void)
     gui_buttonbar_set_display(&buttonbar, &(screens[SCREEN_MAIN]) );
 #endif
 
-    /* Ends an in-progress search - needs access to search_dir */
-    void end_search(void)
-    {
-        if (search_dir != 0 && radio_status == FMRADIO_PLAYING)
-            radio_set(RADIO_MUTE, 0);
-        search_dir = 0;
-    }
-
     /* change status to "in screen" */
     in_screen = true;
 
diff --git a/firmware/pcm_record.c b/firmware/pcm_record.c
index 1c7e458..2e472c6 100644
--- a/firmware/pcm_record.c
+++ b/firmware/pcm_record.c
@@ -67,6 +67,19 @@ static int flush_interrupts = 0;       /* Number of messages queued that
                                           only interrupts a flush initiated
                                           by pcmrec_flush(0) */
 
+/* Utility functions for setting/clearing flushing interrupt flag */
+static inline void flush_interrupt(void)
+{
+    flush_interrupts++;
+    logf("flush int: %d", flush_interrupts);
+}
+
+static inline void clear_flush_interrupt(void)
+{
+    if (--flush_interrupts < 0)
+        flush_interrupts = 0;
+}
+
 /** Stats on encoded data for current file **/
 static size_t        num_rec_bytes;      /* Num bytes recorded             */
 static unsigned long num_rec_samples;    /* Number of PCM samples recorded */
@@ -461,8 +474,7 @@ void audio_set_recording_options(struct audio_recording_options *options)
 void audio_record(const char *filename)
 {
     logf("audio_record: %s", filename);
-    flush_interrupts++;
-    logf("flush int: %d", flush_interrupts);
+    flush_interrupt();
     queue_send(&pcmrec_queue, PCMREC_RECORD, (intptr_t)filename);
     logf("audio_record_done");
 } /* audio_record */
@@ -473,8 +485,7 @@ void audio_record(const char *filename)
 void audio_stop_recording(void)
 {
     logf("audio_stop_recording");
-    flush_interrupts++;
-    logf("flush int: %d", flush_interrupts);
+    flush_interrupt();
     queue_send(&pcmrec_queue, PCMREC_STOP, 0);
     logf("audio_stop_recording done");
 } /* audio_stop_recording */
@@ -485,8 +496,7 @@ void audio_stop_recording(void)
 void audio_pause_recording(void)
 {
     logf("audio_pause_recording");
-    flush_interrupts++;
-    logf("flush int: %d", flush_interrupts);
+    flush_interrupt();
     queue_send(&pcmrec_queue, PCMREC_PAUSE, 0);
     logf("audio_pause_recording done");
 } /* audio_pause_recording */
@@ -1060,6 +1070,20 @@ static void pcmrec_flush(unsigned flush_num)
  * chunk so it can recognize this. ENC_WRITE_CHUNK event must be able to accept
  * a NULL data pointer without error as well.
  */
+static int pcmrec_get_chunk_index(struct enc_chunk_hdr *chunk)
+{
+    return ((char *)chunk - (char *)enc_buffer) / enc_chunk_size;
+} /* pcmrec_get_chunk_index */
+
+static struct enc_chunk_hdr * pcmrec_get_prev_chunk(int index)
+{
+#ifdef PCMREC_PARANOID
+    int index_last = index;
+#endif
+    DEC_ENC_INDEX(index);
+    return GET_ENC_CHUNK(index);
+} /* pcmrec_get_prev_chunk */
+
 static void pcmrec_new_stream(const char *filename, /* next file name */
                               unsigned long flags,  /* CHUNKF_* flags */
                               int pre_index) /* index for prerecorded data */
@@ -1074,20 +1098,6 @@ static void pcmrec_new_stream(const char *filename, /* next file name */
                                                 stream */
     bool did_flush = false;                  /* did a flush occurr? */
 
-    int get_chunk_index(struct enc_chunk_hdr *chunk)
-    {
-        return ((char *)chunk - (char *)enc_buffer) / enc_chunk_size;
-    }
-
-    struct enc_chunk_hdr * get_prev_chunk(int index)
-    {
-#ifdef PCMREC_PARANOID
-        int index_last = index;
-#endif
-        DEC_ENC_INDEX(index);
-        return GET_ENC_CHUNK(index);
-    }
-
     if (filename)
         strncpy(path, filename, MAX_PATH);
     queue_reply(&pcmrec_queue, 0); /* We have all we need */
@@ -1120,7 +1130,7 @@ static void pcmrec_new_stream(const char *filename, /* next file name */
         }
         else
         {
-            struct enc_chunk_hdr *last = get_prev_chunk(enc_wr_index);
+            struct enc_chunk_hdr *last = pcmrec_get_prev_chunk(enc_wr_index);
 
             if (last->flags & CHUNKF_END_FILE)
             {
@@ -1170,8 +1180,8 @@ static void pcmrec_new_stream(const char *filename, /* next file name */
 
     if (flags & CHUNKF_END_FILE)
     {
-        int i = get_chunk_index(data.chunk);
-        get_prev_chunk(i)->flags |= CHUNKF_END_FILE;
+        int i = pcmrec_get_chunk_index(data.chunk);
+        pcmrec_get_prev_chunk(i)->flags |= CHUNKF_END_FILE;
     }
 
     if (start)
@@ -1180,7 +1190,7 @@ static void pcmrec_new_stream(const char *filename, /* next file name */
         {
             /* get stats on data added to start - sort of a prerecord
                operation */
-            int i = get_chunk_index(data.chunk);
+            int i = pcmrec_get_chunk_index(data.chunk);
 #ifdef PCMREC_PARANOID
             int i_last = i;
 #endif
@@ -1565,12 +1575,6 @@ static void pcmrec_thread(void)
 
     logf("thread pcmrec start");
 
-    void clear_flush_interrupt(void)
-    {
-        if (--flush_interrupts < 0)
-            flush_interrupts = 0;
-    }
-
     while(1)
     {
         if (is_recording)