sound.c

代码有点长,需细心阅读,仅供影音视听类产品的开发人员参考

/*****************************************************\
Creater: Terry
Date   : 2001/5/11 12:49PM
Description: Setup menu using 
\*****************************************************/

#include "global.h"
#include "osd.h"
#include "func.h"
#include "ircmd.h"
#include "memmap.h"
#include "regmap.h"
#include "auctrl.h"
#include "cchar.h"
#include "vfd.h"
#if SUPPORT_OSD

#define MONE_sound

#define MAX_BAND        7
#define MAX_MUSIC       5


//extern void InitSW_region(void);
//extern void osd_print_eq_setting(UINT8 r, UINT8 unSele);
//extern void osd_print_realtime_eq(UINT8 r, BYTE * p, BYTE ch);

//extern int CheckDspCtrlRdy();

/***********   Item description  **********************\

BYTE    function
0       mode(MSB 4bits)  ==>show direction picture  
        0x0:no effect
        0x1:basic select function       
        0x2:can enter number                    
        0x3:need run function by osd id         

1       title       ---sw region 1
2~6     select item ---sw region 2

\******************************************************/

#if CONFIG==CONFIG_COMBO_SVCD
const UINT8 music_osd_set[MAX_MUSIC][MAX_BAND] = {
    {13, 13, 13, 13, 13, 13, 13},   //standard
    {21, 16, 8, 5, 8, 16, 21},      //classic
    {25, 17, 5, 11, 5, 17, 25},     //rock
    {3, 10, 16, 22, 16, 10, 3},     //jazz
    {18, 24, 16, 13, 10, 2, 8},     //pop
};

UINT8   user_osd_set[MAX_BAND] = {
    13, 13, 13, 13, 13, 13, 13
};
#else
const UINT8 music_osd_set[MAX_MUSIC][MAX_BAND] = {
    {11, 11, 11, 11, 11, 11, 11},   //standard
    {19, 14, 6, 3, 6, 14, 19},      //classic
    {20, 15, 3, 9, 3, 15, 20},      //rock
    {1, 8, 14, 20, 14, 8, 1},           //jazz
    {16, 20, 14, 11, 8, 1, 6},      //pop
};

UINT8   user_osd_set[MAX_BAND] = {
    11, 11, 11, 11, 11, 11, 11
};
#endif

//Show 3d-sound OSD page when users press 3d-sound button

void ShowSoundPage(BYTE r)
{
    osd_tog_region(r, OSD_ON);
    osd_print_eq_setting(r, 0xff);

}

/*
**
*/

void sound_func_up_dn(BYTE ch, BYTE dir)
{
    if((dir == C_DN) && user_osd_set[ch] > 1)
    {
        user_osd_set[ch]--;
    }
    else
#if CONFIG==CONFIG_COMBO_SVCD
    if((dir == C_UP) && (user_osd_set[ch] < 25))
#else
    if((dir == C_UP) && (user_osd_set[ch] < 21))
#endif
    {
        user_osd_set[ch]++;
    }

#if CONFIG==CONFIG_COMBO_SVCD
    memcpy(&RegionValStr[3], user_osd_set, MAX_BAND);
    osd_print_eq_setting(3, ch * 2);
    au_eq_user_gain(ch, user_osd_set[ch] - 13); //band:0~6  db:-12~+12        
    ShowLevelBand(ch);
#else
    memcpy(&RegionValStr[1], user_osd_set, MAX_BAND);
    osd_print_eq_setting(1, ch * 2);
    au_eq_user_gain(ch, user_osd_set[ch] - 11); //band:0~6  db:-10~+10            
#endif
}


BYTE    bEqValue_old[7];

void DispRealtimeEq(BYTE r)
{
    int     i;
    #if VFD_MODULE==VFD_EQ
    BYTE    *p;
    #endif
    UINT16  unEq[7];
    BYTE    bEqValue[7];

    #if 1//(VFD_MODULE!=VFD_EQ)
    if(IsKY3D() && bEqDisplay)
    {

        if((bEqDisplay & 0x0f) / 2 == 10 / 2)
        {
            au_get_spectrum(unEq);
            for(i = 0; i < 7; i++)
            {
                unsigned temp = (unEq[i] * 32) / 1024;

                /*test */
                temp = (bEqValue_old[i] /**7/8*/  + temp) / 2;
                bEqValue_old[i] = temp;
#if CONFIG==CONFIG_COMBO_SVCD
                if(temp > 25)
                    temp = 25;
#else
                if(temp > 20)
                    temp = 20;
#endif
                /*test */
                bEqValue[i] = temp;
            }
        }


        if((bEqDisplay & 0x0f) == 10)
        {

            au_get_spectrum(unEq);
            /*
               for (i = 0; i < 7; i++)
               {

               if (unEq[i] > unEqMaxRef)
               {
               unEqMaxRef = unEq[i];
               }      
               }
             */
            //normalize value to 0 ~ 25
#if 0
            for(i = 0, j = 0; i < 7; i++)
            {
                //unsigned temp = (unEq[i] * 20) / 1024;
                unsigned temp = (unEq[i] * 28) / 1024;

                /*test */
                temp = (bEqValue_old[i] * 3 / 8 + temp) / 2;
                bEqValue_old[i] = temp;
                if(temp > 25)
                    temp = 25;
                /*test */
                bEqValue[i] = temp;
            }
#endif

            osd_print_realtime_eq(r, bEqValue, CH_N);
            bEqDisplay = 1;                     //reset count to 1 
        }
        else
        {
            bEqDisplay++;
        }                                                       // end of if ((bEqDisplay&0x0f)==4)
    }
    #else //support VFD_EQ 
    {
          p = bEqValue;
          if((bEqDisplay & 0x0f) / 2 == 10 / 2)
      {
        au_get_spectrum(unEq);
        for(i = 0; i < 7; i++)
        {
          unsigned temp = (unEq[i] * 32) / 1024;

          temp = (bEqValue_old[i] /**7/8*/  + temp) / 2;
          bEqValue_old[i] = temp;
#if CONFIG==CONFIG_COMBO_SVCD
          if(temp > 25)
        temp = 25;
#else
          if(temp > 20)
        temp = 20;
#endif
          bEqValue[i] = temp;
        }
      }

      if((bEqDisplay & 0x0f) == 10)
      {
        show_VFD_EQ(p);     
       if(IsKY3D() && bEqDisplay)
         osd_print_realtime_eq(r, bEqValue, CH_N);
       bEqDisplay = 1;                      //reset count to 1 
     }
     else
     {
       bEqDisplay++;
     }                                                      // end of if ((bEqDisplay&0x0f)==4)
       }
      #endif
}


void disp_setup_EQ(BYTE sel_, BYTE r)
{
    int     i;
    BYTE    bEqValue[7];

    sel_ = sel_ - 2;

    for(i = 0; i < 7; i++)
    {
        if(sel_ == MAX_MUSIC)
            bEqValue[i] = user_osd_set[i];
        else
            bEqValue[i] = music_osd_set[sel_][i];
    }


    osd_print_realtime_eq(r, bEqValue, CH_S);
    //bEqDisplay = 1;

}

void ShowLevelBand(BYTE ch_)
{
#if 1                                                       //def NINTAUS//jhuang open 2002/8/21
    psprintf(RegionValStr[1], " %d", ch_);
    PrintOsdMsg(STR_OS_BAND, REGION1, 0, 1, CH_S);

    if(user_osd_set[ch_] >= 13)
        psprintf(RegionValStr[2], " +%02d %sB", (user_osd_set[ch_] - 13), Ch_d);
    else
        psprintf(RegionValStr[2], " -%02d %sB", (13 - user_osd_set[ch_]), Ch_d);

    PrintOsdMsg(STR_OS_LEVEL, REGION2, 0, 1, CH_S);

#else
    psprintf(RegionValStr[1], "BAND %d", ch_);
    PrintOsdMsg(STR_OS_NULL, REGION1, 0, 1, CH_S);


    if(user_osd_set[ch_] >= 13)
        psprintf(RegionValStr[2], "LEVEL +%02d DB", (user_osd_set[ch_] - 13));
    else
        psprintf(RegionValStr[2], "LEVEL -%02d DB", (13 - user_osd_set[ch_]));

    PrintOsdMsg(STR_OS_NULL, REGION2, 0, 1, CH_S);
#endif
}
#endif /* SUPPORT_OSD */