libctru/examples/audio/mic/source/main.c
2015-01-03 00:10:32 +00:00

95 lines
1.9 KiB
C

#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <malloc.h>
#include <3ds.h>
int main()
{
u8 *framebuf;
u32 *sharedmem = NULL, sharedmem_size = 0x30000;
u8 *audiobuf;
u32 audiobuf_size = 0x100000, audiobuf_pos = 0;
u8 control=0x40;
u32 audio_initialized = 0;
srvInit();
aptInit();
gfxInitDefault();
hidInit(NULL);
if(CSND_initialize(NULL)==0)audio_initialized = 1;
sharedmem = (u32*)memalign(0x1000, sharedmem_size);
audiobuf = linearAlloc(audiobuf_size);
MIC_Initialize(sharedmem, sharedmem_size, control, 0, 3, 1, 1);//See mic.h.
while(aptMainLoop())
{
hidScanInput();
gspWaitForVBlank();
u32 kDown = hidKeysDown();
if (kDown & KEY_START)
break; // break in order to return to hbmenu
if(audio_initialized)
{
framebuf = gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL);
if(kDown & KEY_A)
{
audiobuf_pos = 0;
CSND_setchannel_playbackstate(0x8, 0);//Stop audio playback.
CSND_sharedmemtype0_cmdupdatestate(0);
MIC_SetRecording(1);
memset(framebuf, 0x20, 0x46500);
}
if((hidKeysHeld() & KEY_A) && audiobuf_pos < audiobuf_size)
{
audiobuf_pos+= MIC_ReadAudioData(&audiobuf[audiobuf_pos], audiobuf_size-audiobuf_pos, 1);
if(audiobuf_pos > audiobuf_size)audiobuf_pos = audiobuf_size;
memset(framebuf, 0x60, 0x46500);
}
if(hidKeysUp() & KEY_A)
{
MIC_SetRecording(0);
GSPGPU_FlushDataCache(NULL, audiobuf, audiobuf_pos);
CSND_playsound(0x8, CSND_LOOP_DISABLE, CSND_ENCODING_PCM16, 16000, (u32*)audiobuf, NULL, audiobuf_pos, 2, 0);
memset(framebuf, 0xe0, 0x46500);
gfxFlushBuffers();
gfxSwapBuffers();
framebuf = gfxGetFramebuffer(GFX_TOP, GFX_LEFT, NULL, NULL);
memset(framebuf, 0xe0, 0x46500);
}
}
gfxFlushBuffers();
gfxSwapBuffers();
}
MIC_Shutdown();
if(audio_initialized)CSND_shutdown();
free(sharedmem);
linearFree(audiobuf);
hidExit();
gfxExit();
aptExit();
srvExit();
return 0;
}