1 files changed, 65 insertions, 7 deletions

diff --git a/src/frontend/Util_Audio.cpp b/src/frontend/Util_Audio.cpp
index fe0ecab..fc80c90 100644
--- a/src/frontend/Util_Audio.cpp
+++ b/src/frontend/Util_Audio.cpp
@@ -17,16 +17,15 @@
 */
 
 #include <stdio.h>
+#include <stdlib.h>
 #include <string.h>
 #include <math.h>
 
 #include "FrontendUtil.h"
-#include "Config.h"
-#include "qt_sdl/PlatformConfig.h" // FIXME!!!
-#include "Platform.h"
 
 #include "NDS.h"
-#include "GBACart.h"
+
+#include "mic_blow.h"
 
 
 namespace Frontend
@@ -35,13 +34,22 @@ namespace Frontend
 int AudioOut_Freq;
 float AudioOut_SampleFrac;
 
+s16* MicBuffer;
+u32 MicBufferLength;
+u32 MicBufferReadPos;
+
 
 void Init_Audio(int outputfreq)
 {
     AudioOut_Freq = outputfreq;
     AudioOut_SampleFrac = 0;
+
+    MicBuffer = nullptr;
+    MicBufferLength = 0;
+    MicBufferReadPos = 0;
 }
 
+
 int AudioOut_GetNumSamples(int outlen)
 {
     float f_len_in = (outlen * 32823.6328125) / (float)AudioOut_Freq;
@@ -52,14 +60,12 @@ int AudioOut_GetNumSamples(int outlen)
     return len_in;
 }
 
-void AudioOut_Resample(s16* inbuf, int inlen, s16* outbuf, int outlen)
+void AudioOut_Resample(s16* inbuf, int inlen, s16* outbuf, int outlen, int volume)
 {
     float res_incr = inlen / (float)outlen;
     float res_timer = 0;
     int res_pos = 0;
 
-    int volume = Config::AudioVolume;
-
     for (int i = 0; i < outlen; i++)
     {
         outbuf[i*2  ] = (inbuf[res_pos*2  ] * volume) >> 8;
@@ -74,4 +80,56 @@ void AudioOut_Resample(s16* inbuf, int inlen, s16* outbuf, int outlen)
     }
 }
 
+
+void Mic_FeedSilence()
+{
+    MicBufferReadPos = 0;
+    NDS::MicInputFrame(NULL, 0);
+}
+
+void Mic_FeedNoise()
+{
+    int sample_len = sizeof(mic_blow) / sizeof(u16);
+    static int sample_pos = 0;
+
+    s16 tmp[735];
+
+    for (int i = 0; i < 735; i++)
+    {
+        tmp[i] = mic_blow[sample_pos];
+        sample_pos++;
+        if (sample_pos >= sample_len) sample_pos = 0;
+    }
+
+    NDS::MicInputFrame(tmp, 735);
+}
+
+void Mic_FeedExternalBuffer()
+{
+    if (!MicBuffer) return Mic_FeedSilence();
+
+    if ((MicBufferReadPos + 735) > MicBufferLength)
+    {
+        s16 tmp[735];
+        u32 len1 = MicBufferLength - MicBufferReadPos;
+        memcpy(&tmp[0], &MicBuffer[MicBufferReadPos], len1*sizeof(s16));
+        memcpy(&tmp[len1], &MicBuffer[0], (735 - len1)*sizeof(s16));
+
+        NDS::MicInputFrame(tmp, 735);
+        MicBufferReadPos = 735 - len1;
+    }
+    else
+    {
+        NDS::MicInputFrame(&MicBuffer[MicBufferReadPos], 735);
+        MicBufferReadPos += 735;
+    }
+}
+
+void Mic_SetExternalBuffer(s16* buffer, u32 len)
+{
+    MicBuffer = buffer;
+    MicBufferLength = len;
+    MicBufferReadPos = 0;
+}
+
 }