Get VU Meter plugin working on SWCODEC targets. Still needs to be scaled to fit better on larger displays. Also requires bumping the plugin API versions.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@8915 a1c6a512-1295-4272-9138-f99709370657

apps/plugin.c

@@ -52,6 +52,7 @@
 #include "splash.h"
 #if (CONFIG_CODEC == SWCODEC)
 #include "pcm_playback.h"
+#include "dsp.h"
 #endif
 
 #ifdef HAVE_CHARGING
@@ -310,9 +311,8 @@ static const struct plugin_api rockbox_api = {
 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
     mpeg_get_last_header,
 #endif
-#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
+
     sound_set_pitch,
-#endif
 
 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
     /* MAS communication */
@@ -407,6 +407,10 @@ static const struct plugin_api rockbox_api = {
     sim_lcd_ex_init,
     sim_lcd_ex_update_rect,
 #endif
+
+#if (CONFIG_CODEC == SWCODEC)
+    pcm_calculate_peaks,
+#endif
 };
 
 int plugin_load(const char* plugin, void* parameter)

apps/plugin.h

@@ -52,6 +52,7 @@
 #include "misc.h"
 #if (HWCODEC == SWCODEC)
 #include "pcm_playback.h"
+#include "dsp.h"
 #endif
 #include "settings.h"
 #include "timer.h"
@@ -98,12 +99,12 @@
 #define PLUGIN_MAGIC 0x526F634B /* RocK */
 
 /* increase this every time the api struct changes */
-#define PLUGIN_API_VERSION 9
+#define PLUGIN_API_VERSION 10
 
 /* update this to latest version if a change to the api struct breaks
    backwards compatibility (and please take the opportunity to sort in any 
    new function which are "waiting" at the end of the function table) */
-#define PLUGIN_MIN_API_VERSION 7
+#define PLUGIN_MIN_API_VERSION 8
 
 /* plugin return codes */
 enum plugin_status {
@@ -364,9 +365,8 @@ struct plugin_api {
 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
     unsigned long (*mpeg_get_last_header)(void);
 #endif
-#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
+
     void (*sound_set_pitch)(int pitch);        
-#endif
 
     /* MAS communication */
 #if !defined(SIMULATOR) && (CONFIG_CODEC != SWCODEC)
@@ -465,15 +465,19 @@ struct plugin_api {
 #endif
     int (*show_logo)(void);
 
-    /* new stuff at the end, sort into place next time
-       the API gets incompatible */     
-
     struct tree_context* (*tree_get_context)(void);
 #if defined(SIMULATOR) && defined(HAVE_LCD_BITMAP) && LCD_DEPTH < 8
     void (*sim_lcd_ex_init)(int shades, unsigned long (*getpixel)(int, int));
     void (*sim_lcd_ex_update_rect)(int x, int y, int width, int height);
 #endif
     
+#if (CONFIG_CODEC == SWCODEC)
+    void (*pcm_calculate_peaks)(int *left, int *right);
+#endif
+
+    /* new stuff at the end, sort into place next time
+       the API gets incompatible */     
+
 };
 
 /* plugin header */

apps/plugins/vu_meter.c

@@ -17,7 +17,7 @@
  **************************************************************************/
 #include "plugin.h"
 
-#if defined(HAVE_LCD_BITMAP) && (CONFIG_CODEC != SWCODEC)
+#if defined(HAVE_LCD_BITMAP)
 
 PLUGIN_HEADER
 
@@ -28,6 +28,10 @@ PLUGIN_HEADER
 #define VUMETER_MENU BUTTON_F1
 #define VUMETER_MENU_EXIT BUTTON_F1
 #define VUMETER_MENU_EXIT2 BUTTON_OFF
+#define VUMETER_LEFT BUTTON_LEFT
+#define VUMETER_RIGHT BUTTON_RIGHT
+#define VUMETER_UP BUTTON_UP
+#define VUMETER_DOWN BUTTON_DOWN
 
 #elif CONFIG_KEYPAD == ONDIO_PAD
 #define VUMETER_QUIT BUTTON_OFF
@@ -37,12 +41,62 @@ PLUGIN_HEADER
 #define VUMETER_MENU (BUTTON_MENU | BUTTON_REPEAT)
 #define VUMETER_MENU_EXIT BUTTON_MENU
 #define VUMETER_MENU_EXIT2 BUTTON_OFF
+#define VUMETER_LEFT BUTTON_LEFT
+#define VUMETER_RIGHT BUTTON_RIGHT
+#define VUMETER_UP BUTTON_UP
+#define VUMETER_DOWN BUTTON_DOWN
+
+#elif (CONFIG_KEYPAD == IRIVER_H100_PAD) || \
+      (CONFIG_KEYPAD == IRIVER_H300_PAD)
+#define VUMETER_QUIT BUTTON_OFF
+#define VUMETER_HELP BUTTON_ON
+#define VUMETER_MENU BUTTON_SELECT
+#define VUMETER_MENU_EXIT BUTTON_SELECT
+#define VUMETER_MENU_EXIT2 BUTTON_OFF
+#define VUMETER_LEFT BUTTON_LEFT
+#define VUMETER_RIGHT BUTTON_RIGHT
+#define VUMETER_UP BUTTON_UP
+#define VUMETER_DOWN BUTTON_DOWN
+
+#elif (CONFIG_KEYPAD == IPOD_3G_PAD) || \
+      (CONFIG_KEYPAD == IPOD_4G_PAD)
+#define VUMETER_QUIT BUTTON_MENU
+#define VUMETER_HELP BUTTON_PLAY
+#define VUMETER_MENU BUTTON_SELECT
+#define VUMETER_MENU_EXIT BUTTON_SELECT
+#define VUMETER_MENU_EXIT2 BUTTON_MENU
+#define VUMETER_LEFT BUTTON_LEFT
+#define VUMETER_RIGHT BUTTON_RIGHT
+#define VUMETER_UP BUTTON_SCROLL_FWD
+#define VUMETER_DOWN BUTTON_SCROLL_BACK
+
+#elif (CONFIG_KEYPAD == GIGABEAT_PAD)
+#define VUMETER_QUIT BUTTON_POWER
+#define VUMETER_HELP BUTTON_A
+#define VUMETER_MENU BUTTON_SELECT
+#define VUMETER_MENU_EXIT BUTTON_SELECT
+#define VUMETER_MENU_EXIT2 BUTTON_POWER
+#define VUMETER_LEFT BUTTON_LEFT
+#define VUMETER_RIGHT BUTTON_RIGHT
+#define VUMETER_UP BUTTON_UP
+#define VUMETER_DOWN BUTTON_DOWN
+
+#elif CONFIG_KEYPAD == IAUDIO_X5_PAD
+#define VUMETER_QUIT BUTTON_POWER
+#define VUMETER_HELP BUTTON_PLAY
+#define VUMETER_MENU BUTTON_SELECT
+#define VUMETER_MENU_EXIT BUTTON_SELECT
+#define VUMETER_MENU_EXIT2 BUTTON_POWER
+#define VUMETER_LEFT BUTTON_LEFT
+#define VUMETER_RIGHT BUTTON_RIGHT
+#define VUMETER_UP BUTTON_UP
+#define VUMETER_DOWN BUTTON_DOWN
 
 #endif
 
 const struct plugin_api* rb;
 
-#ifdef SIMULATOR
+#if SIMULATOR && (CONFIG_CODEC != SWCODEC)
 #define mas_codec_readreg(x) rand()%MAX_PEAK
 #endif
 
@@ -229,7 +283,7 @@ void change_settings(void)
                 quit = true;
                 break;
 
-            case BUTTON_LEFT:
+            case VUMETER_LEFT:
                 if(selected_setting==0)
                     settings.meter_type == DIGITAL ? settings.meter_type = ANALOG : settings.meter_type++;
                 if(settings.meter_type==ANALOG) {
@@ -250,7 +304,7 @@ void change_settings(void)
                 }
                 break;
 
-            case BUTTON_RIGHT:
+            case VUMETER_RIGHT:
                 if(selected_setting==0)
                     settings.meter_type == DIGITAL ? settings.meter_type = ANALOG : settings.meter_type++;
                 if(settings.meter_type==ANALOG) {
@@ -271,11 +325,11 @@ void change_settings(void)
                 }
                 break;
 
-            case BUTTON_DOWN:
+            case VUMETER_UP:
                 selected_setting == 3 ? selected_setting=0 : selected_setting++;
                 break;
 
-            case BUTTON_UP:
+            case VUMETER_DOWN:
                 selected_setting == 0 ? selected_setting=3 : selected_setting--;
         }
     }
@@ -334,14 +388,22 @@ void draw_digital_minimeters(void) {
 }
 
 void analog_meter(void) {
-    if(settings.analog_use_db_scale) {
-        left_needle_top_x = analog_db_scale[rb->mas_codec_readreg(0xC)*56/MAX_PEAK];
-        right_needle_top_x = analog_db_scale[rb->mas_codec_readreg(0xD)*56/MAX_PEAK]+56;
-    }
 
+#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
+    int left_peak = rb->mas_codec_readreg(0xC);
+    int right_peak = rb->mas_codec_readreg(0xD);
+#elif (CONFIG_CODEC == SWCODEC)
+    int left_peak, right_peak;
+    rb->pcm_calculate_peaks(&left_peak, &right_peak);
+#endif
+
+    if(settings.analog_use_db_scale) {
+        left_needle_top_x = analog_db_scale[left_peak * 56 / MAX_PEAK];
+        right_needle_top_x = analog_db_scale[right_peak * 56 / MAX_PEAK] + 56;
+    }
     else {
-        left_needle_top_x = rb->mas_codec_readreg(0xC) * 56 / MAX_PEAK;
+        left_needle_top_x = left_peak * 56 / MAX_PEAK;
-        right_needle_top_x = (rb->mas_codec_readreg(0xD) * 56 / MAX_PEAK)+56;
+        right_needle_top_x = right_peak * 56 / MAX_PEAK + 56;
     }
 
     /* Makes a decay on the needle */
@@ -382,13 +444,21 @@ void analog_meter(void) {
 }
 
 void digital_meter(void) {
+#if (CONFIG_CODEC == MAS3587F) || (CONFIG_CODEC == MAS3539F)
+    int left_peak = rb->mas_codec_readreg(0xC);
+    int right_peak = rb->mas_codec_readreg(0xD);
+#elif (CONFIG_CODEC == SWCODEC)
+    int left_peak, right_peak;
+    rb->pcm_calculate_peaks(&left_peak, &right_peak);
+#endif
+
     if(settings.digital_use_db_scale) {
-        num_left_leds = digital_db_scale[rb->mas_codec_readreg(0xC) * 44 / MAX_PEAK];
+        num_left_leds = digital_db_scale[left_peak * 44 / MAX_PEAK];
-        num_right_leds = digital_db_scale[rb->mas_codec_readreg(0xD) * 44 / MAX_PEAK];
+        num_right_leds = digital_db_scale[right_peak * 44 / MAX_PEAK];
     }
     else {
-        num_left_leds = rb->mas_codec_readreg(0xC) * 11 / MAX_PEAK;
+        num_left_leds = left_peak * 11 / MAX_PEAK;
-        num_right_leds = rb->mas_codec_readreg(0xD) * 11 / MAX_PEAK;
+        num_right_leds = right_peak * 11 / MAX_PEAK;
     }
 
     num_left_leds = (num_left_leds+last_num_left_leds*settings.digital_decay)/(settings.digital_decay+1);
@@ -481,13 +551,13 @@ enum plugin_status plugin_start(struct plugin_api* api, void* parameter) {
                 change_settings();
                 break;
 
-            case BUTTON_UP:
+            case VUMETER_UP:
-            case BUTTON_UP | BUTTON_REPEAT:
+            case VUMETER_UP | BUTTON_REPEAT:
                 change_volume(1);
                 break;
 
-            case BUTTON_DOWN:
+            case VUMETER_DOWN:
-            case BUTTON_DOWN | BUTTON_REPEAT:
+            case VUMETER_DOWN | BUTTON_REPEAT:
                 change_volume(-1);
                 break;