mirror of
https://github.com/ZDoom/raze-gles.git
synced 2024-12-25 03:00:46 +00:00
301 lines
6.8 KiB
C
301 lines
6.8 KiB
C
#include "multivoc.h"
|
|
|
|
extern char *MV_MixDestination;
|
|
extern uint32_t MV_MixPosition;
|
|
|
|
extern char *MV_LeftVolume;
|
|
extern char *MV_RightVolume;
|
|
|
|
extern char *MV_HarshClipTable;
|
|
|
|
extern int32_t MV_RightChannelOffset;
|
|
extern int32_t MV_SampleSize;
|
|
|
|
void MV_Mix8BitMono(uint32_t position, uint32_t rate,
|
|
const char *start, uint32_t length)
|
|
{
|
|
const char *src;
|
|
char *dest;
|
|
uint32_t i;
|
|
|
|
src = (const char *)start;
|
|
dest = (char *)MV_MixDestination;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t s = src[position >> 16];
|
|
int32_t d = *dest;
|
|
|
|
s = MV_LeftVolume[s * 2];
|
|
|
|
s += d;
|
|
|
|
s = MV_HarshClipTable[s + 0x80];
|
|
|
|
*dest = (s & 0xff);
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|
|
|
|
void MV_Mix8BitStereo(uint32_t position,
|
|
uint32_t rate, const char *start, uint32_t length)
|
|
{
|
|
const char *src;
|
|
char *dest;
|
|
uint32_t i;
|
|
|
|
src = (const char *)start;
|
|
dest = (char *)MV_MixDestination;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t s = src[(position >> 16)];
|
|
int32_t dl = dest[0];
|
|
int32_t dr = dest[MV_RightChannelOffset];
|
|
|
|
dl += MV_LeftVolume[s * 2];
|
|
dr += MV_RightVolume[s * 2];
|
|
|
|
dl = MV_HarshClipTable[dl + 0x80];
|
|
dr = MV_HarshClipTable[dr + 0x80];
|
|
|
|
dest[0] = (dl & 0xff);
|
|
dest[MV_RightChannelOffset] = (dr & 0xff);
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|
|
|
|
void MV_Mix16BitMono(uint32_t position,
|
|
uint32_t rate, const char *start, uint32_t length)
|
|
{
|
|
const int16_t *MV_LeftVolumeS;
|
|
const char *src;
|
|
int16_t *dest;
|
|
uint32_t i;
|
|
|
|
src = (const char *)start;
|
|
dest = (int16_t *)MV_MixDestination;
|
|
|
|
MV_LeftVolumeS = (const int16_t *)MV_LeftVolume;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t s = src[position >> 16];
|
|
int32_t d = dest[0];
|
|
|
|
s = MV_LeftVolumeS[s];
|
|
|
|
s += d;
|
|
|
|
if (s < -32768) s = -32768;
|
|
if (s > 32767) s = 32767;
|
|
|
|
*dest = (int16_t) s;
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize/2;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|
|
|
|
void MV_Mix16BitStereo(uint32_t position,
|
|
uint32_t rate, const char *start, uint32_t length)
|
|
{
|
|
const int16_t *MV_LeftVolumeS;
|
|
const int16_t *MV_RightVolumeS;
|
|
const char *src;
|
|
int16_t *dest;
|
|
uint32_t i;
|
|
|
|
src = (char *)start;
|
|
dest = (int16_t *)MV_MixDestination;
|
|
|
|
MV_LeftVolumeS = (const int16_t *)MV_LeftVolume;
|
|
MV_RightVolumeS = (const int16_t *)MV_RightVolume;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t s = src[position >> 16];
|
|
int32_t dl = dest[0];
|
|
int32_t dr = dest[MV_RightChannelOffset/2];
|
|
|
|
dl += MV_LeftVolumeS[s];
|
|
dr += MV_RightVolumeS[s];
|
|
|
|
if (dl < -32768) dl = -32768;
|
|
if (dl > 32767) dl = 32767;
|
|
if (dr < -32768) dr = -32768;
|
|
if (dr > 32767) dr = 32767;
|
|
|
|
dest[0] = (int16_t) dl;
|
|
dest[MV_RightChannelOffset/2] = (int16_t) dr;
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize/2;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|
|
|
|
void MV_Mix8BitMono16(uint32_t position, uint32_t rate,
|
|
const char *start, uint32_t length)
|
|
{
|
|
const char *src;
|
|
char *dest;
|
|
uint32_t i;
|
|
|
|
src = (const char *)start + 1;
|
|
dest = (char *)MV_MixDestination;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t s = (int32_t)src[(position >> 16) * 2] + 0x80;
|
|
int32_t d = *dest;
|
|
|
|
s = MV_LeftVolume[s * 2];
|
|
|
|
s += d;
|
|
|
|
s = MV_HarshClipTable[s + 0x80];
|
|
|
|
*dest = (s & 0xff);
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|
|
|
|
void MV_Mix8BitStereo16(uint32_t position,
|
|
uint32_t rate, const char *start, uint32_t length)
|
|
{
|
|
const char *src;
|
|
char *dest;
|
|
uint32_t i;
|
|
|
|
src = (const char *)start + 1;
|
|
dest = (char *)MV_MixDestination;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t s = src[(position >> 16) * 2] + 0x80;
|
|
int32_t dl = dest[0];
|
|
int32_t dr = dest[MV_RightChannelOffset];
|
|
|
|
dl += MV_LeftVolume[s * 2];
|
|
dr += MV_RightVolume[s * 2];
|
|
|
|
dl = MV_HarshClipTable[dl + 0x80];
|
|
dr = MV_HarshClipTable[dr + 0x80];
|
|
|
|
dest[0] = (dl & 0xff);
|
|
dest[MV_RightChannelOffset] = (dr & 0xff);
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|
|
|
|
void MV_Mix16BitMono16(uint32_t position,
|
|
uint32_t rate, const char *start, uint32_t length)
|
|
{
|
|
const int16_t *MV_LeftVolumeS;
|
|
const char *src;
|
|
int16_t *dest;
|
|
uint32_t i;
|
|
|
|
src = (const char *)start;
|
|
dest = (int16_t *)MV_MixDestination;
|
|
|
|
MV_LeftVolumeS = (const int16_t *)MV_LeftVolume;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t sl = src[(position >> 16) * 2 + 0];
|
|
int32_t sh = src[(position >> 16) * 2 + 1] ^ 0x80;
|
|
|
|
int32_t d = *dest;
|
|
|
|
sl = MV_LeftVolume[sl * 2 + 1];
|
|
sh = MV_LeftVolumeS[sh];
|
|
|
|
d = sl + sh + 0x80 + d;
|
|
|
|
if (d < -32768) d = -32768;
|
|
if (d > 32767) d = 32767;
|
|
|
|
*dest = (int16_t) d;
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize/2;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|
|
|
|
void MV_Mix16BitStereo16(uint32_t position,
|
|
uint32_t rate, const char *start, uint32_t length)
|
|
{
|
|
const int16_t *MV_LeftVolumeS;
|
|
const int16_t *MV_RightVolumeS;
|
|
const char *src;
|
|
int16_t *dest;
|
|
uint32_t i;
|
|
|
|
src = (const char *)start;
|
|
dest = (int16_t *)MV_MixDestination;
|
|
|
|
MV_LeftVolumeS = (const int16_t *)MV_LeftVolume;
|
|
MV_RightVolumeS = (const int16_t *)MV_RightVolume;
|
|
|
|
for (i = 0; i < length; i++)
|
|
{
|
|
int32_t sl = src[(position >> 16) * 2 + 0];
|
|
int32_t sh = src[(position >> 16) * 2 + 1] ^ 0x80;
|
|
|
|
int32_t dl = dest[0];
|
|
int32_t dr = dest[MV_RightChannelOffset/2];
|
|
|
|
int32_t sll = MV_LeftVolume[sl * 2 + 1];
|
|
int32_t slh = MV_LeftVolumeS[sh];
|
|
|
|
int32_t srl = MV_RightVolume[sl * 2 + 1];
|
|
int32_t srh = MV_RightVolumeS[sh];
|
|
|
|
dl = sll + slh + 0x80 + dl;
|
|
dr = srl + srh + 0x80 + dr;
|
|
|
|
if (dl < -32768) dl = -32768;
|
|
if (dl > 32767) dl = 32767;
|
|
if (dr < -32768) dr = -32768;
|
|
if (dr > 32767) dr = 32767;
|
|
|
|
dest[0] = (int16_t) dl;
|
|
dest[MV_RightChannelOffset/2] = (int16_t) dr;
|
|
|
|
position += rate;
|
|
dest += MV_SampleSize/2;
|
|
}
|
|
|
|
MV_MixPosition = position;
|
|
MV_MixDestination = (char *)dest;
|
|
}
|