[VM][EVENT] Sound devices: Do mix_sound() dynamically, not do per a sample: To reduce...

[csp-qt/common_source_project-fm7.git] / source / src / vm / sn76489an.cpp

diff --git a/source/src/vm/sn76489an.cpp b/source/src/vm/sn76489an.cpp
index e375534..0ba8e3f 100644 (file)
--- a/source/src/vm/sn76489an.cpp
+++ b/source/src/vm/sn76489an.cpp
@@ -30,6 +30,7 @@ void SN76489AN::initialize()
 
 void SN76489AN::reset()
 {
+       touch_sound();
        for(int i = 0; i < 4; i++) {
                ch[i].count = 0;
                ch[i].period = 1;
@@ -52,17 +53,20 @@ void SN76489AN::write_io8(uint32_t addr, uint32_t data)
                
                switch(index & 7) {
                case 0: case 2: case 4:
+                       touch_sound();
                        // tone : frequency
                        regs[index] = (regs[index] & 0x3f0) | (data & 0x0f);
                        ch[c].period = regs[index] ? regs[index] : 0x400;
 //                     ch[c].count = 0;
                        break;
                case 1: case 3: case 5: case 7:
+                       touch_sound();
                        // tone / noise : volume
                        regs[index] = data & 0x0f;
                        ch[c].volume = volume_table[data & 0x0f];
                        break;
                case 6:
+                       touch_sound();
                        // noise : frequency, mode
                        regs[6] = data;
                        data &= 3;
@@ -77,6 +81,7 @@ void SN76489AN::write_io8(uint32_t addr, uint32_t data)
                
                switch(index & 0x07) {
                case 0: case 2: case 4:
+                       touch_sound();
                        // tone : frequency
                        regs[index] = (regs[index] & 0x0f) | (((uint16_t)data << 4) & 0x3f0);
                        ch[c].period = regs[index] ? regs[index] : 0x400;
@@ -93,8 +98,10 @@ void SN76489AN::write_io8(uint32_t addr, uint32_t data)
 void SN76489AN::write_signal(int id, uint32_t data, uint32_t mask)
 {
        if(id == SIG_SN76489AN_MUTE) {
+               touch_sound();
                mute = ((data & mask) != 0);
        } else if(id == SIG_SN76489AN_DATA) {
+               touch_sound();
                val = data & mask;
        } else if(id == SIG_SN76489AN_CS) {
                bool next = ((data & mask) != 0);
@@ -213,6 +220,7 @@ bool SN76489AN::load_state(FILEIO* state_fio)
        cs = state_fio->FgetBool();
        we = state_fio->FgetBool();
        val = state_fio->FgetUint8();
+       //touch_sound();
        return true;
 }