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Refactoring of CUETools.Codecs.

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This commit is contained in:
karamanolev
2011-10-24 00:13:35 +00:00
parent 74c22995b8
commit 6f84aadc2e
34 changed files with 3117 additions and 3094 deletions
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142
CUETools.Codecs/AudioSamples.cs Normal file
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using System;
namespace CUETools.Codecs
{
public class AudioSamples
{
public const uint UINT32_MAX = 0xffffffff;
unsafe public static void Interlace(int* res, int* src1, int* src2, int n)
{
for (int i = n; i > 0; i--)
{
*(res++) = *(src1++);
*(res++) = *(src2++);
}
}
unsafe public static void Deinterlace(int* dst1, int* dst2, int* src, int n)
{
for (int i = n; i > 0; i--)
{
*(dst1++) = *(src++);
*(dst2++) = *(src++);
}
}
unsafe public static bool MemCmp(int* res, int* smp, int n)
{
for (int i = n; i > 0; i--)
if (*(res++) != *(smp++))
return true;
return false;
}
unsafe public static void MemCpy(uint* res, uint* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(int* res, int* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(long* res, long* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(short* res, short* smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemCpy(byte* res, byte* smp, int n)
{
if ((((IntPtr)smp).ToInt64() & 7) == (((IntPtr)res).ToInt64() & 7) && n > 32)
{
int delta = (int)((8 - (((IntPtr)smp).ToInt64() & 7)) & 7);
for (int i = delta; i > 0; i--)
*(res++) = *(smp++);
n -= delta;
MemCpy((long*)res, (long*)smp, n >> 3);
int n8 = (n >> 3) << 3;
n -= n8;
smp += n8;
res += n8;
}
if ((((IntPtr)smp).ToInt64() & 3) == (((IntPtr)res).ToInt64() & 3) && n > 16)
{
int delta = (int)((4 - (((IntPtr)smp).ToInt64() & 3)) & 3);
for (int i = delta; i > 0; i--)
*(res++) = *(smp++);
n -= delta;
MemCpy((int*)res, (int*)smp, n >> 2);
int n4 = (n >> 2) << 2;
n -= n4;
smp += n4;
res += n4;
}
for (int i = n; i > 0; i--)
*(res++) = *(smp++);
}
unsafe public static void MemSet(int* res, int smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = smp;
}
unsafe public static void MemSet(long* res, long smp, int n)
{
for (int i = n; i > 0; i--)
*(res++) = smp;
}
unsafe public static void MemSet(byte* res, byte smp, int n)
{
if (IntPtr.Size == 8 && (((IntPtr)res).ToInt64() & 7) == 0 && smp == 0 && n > 8)
{
MemSet((long*)res, 0, n >> 3);
int n8 = (n >> 3) << 3;
n -= n8;
res += n8;
}
if ((((IntPtr)res).ToInt64() & 3) == 0 && smp == 0 && n > 4)
{
MemSet((int*)res, 0, n >> 2);
int n4 = (n >> 2) << 2;
n -= n4;
res += n4;
}
for (int i = n; i > 0; i--)
*(res++) = smp;
}
unsafe public static void MemSet(byte[] res, byte smp, int offs, int n)
{
fixed (byte* pres = &res[offs])
MemSet(pres, smp, n);
}
unsafe public static void MemSet(int[] res, int smp, int offs, int n)
{
fixed (int* pres = &res[offs])
MemSet(pres, smp, n);
}
unsafe public static void MemSet(long[] res, long smp, int offs, int n)
{
fixed (long* pres = &res[offs])
MemSet(pres, smp, n);
}
}
}