public void SimdTest()
{
Bounds bounds = new Bounds(new Vector3(1, 1, 1), new Vector3(3, 3, 3));
const int positionX = 4;
const int positionZ = 3;
// Non-SIMD version
Vector3Int bMin;
Vector3Int bMax;
Vector3Int myVec52 = new Vector3Int(Chunk.Vec5.X, Chunk.Vec5.X, Chunk.Vec5.X);
{
Vector3Int pom = new Vector3Int(positionX * EngineSettings.ChunkConfig.SizeX, 0, positionZ * EngineSettings.ChunkConfig.SizeZ);
int minX = Mathf.Clamp(Mathf.FloorToInt(bounds.min.x) - pom.X - myVec52.X, 0, EngineSettings.ChunkConfig.MaskX);
int minY = Mathf.Clamp(Mathf.FloorToInt(bounds.min.y) - myVec52.Y, 0, EngineSettings.ChunkConfig.SizeYTotal - 1);
int minZ = Mathf.Clamp(Mathf.FloorToInt(bounds.min.z) - pom.Z - myVec52.Z, 0, EngineSettings.ChunkConfig.MaskZ);
bMin = new Vector3Int(minX, minY, minZ);
int maxX = Mathf.Clamp(Mathf.Clamp(bMin.X, 0, EngineSettings.ChunkConfig.MaskX), 0, EngineSettings.ChunkConfig.MaskX);
int maxY = Mathf.Clamp(Mathf.Clamp(bMin.Y, 0, EngineSettings.ChunkConfig.SizeYTotal - 1), 0, EngineSettings.ChunkConfig.SizeYTotal-1);
int maxZ = Mathf.Clamp(Mathf.Clamp(bMin.Z, 0, EngineSettings.ChunkConfig.MaskZ), 0, EngineSettings.ChunkConfig.MaskZ);
bMax = new Vector3Int(maxX, maxY, maxZ);
}
// SIMD version
Vector4i bMinv;
Vector4i bMaxv;
{
Vector4f bMinf = new Vector4f(bounds.min.x, bounds.min.y, bounds.min.z, 0f);
bMinv = bMinf.ConvertToIntTruncated();
Vector4f bMaxf = new Vector4f(bounds.max.x, bounds.max.y, bounds.max.z, 0f);
bMaxv = bMaxf.ConvertToInt();
Vector4i pom = new Vector4i(positionX, 0, positionZ, 0)*Chunk.VecSize;
bMinv -= pom;
bMinv -= Chunk.Vec5;
bMinv = bMinv.Max(Vector4i.Zero).Min(Chunk.VecSize1);
// Clamp to 0..size (x,z) or 0..height (y) respectively
bMaxv -= pom;
bMaxv += Chunk.Vec5;
bMaxv = bMaxv.Max(Vector4i.Zero).Min(Chunk.VecSize1);
// Clamp to 0..size (x,z) or 0..height (y) respectively
}
Assert.AreEqual(bMin.X, bMinv.X);
Assert.AreEqual(bMin.Y, bMinv.Y);
Assert.AreEqual(bMin.Z, bMinv.Z);
Assert.AreEqual(bMax.X, bMaxv.X);
Assert.AreEqual(bMax.Y, bMaxv.Y);
Assert.AreEqual(bMax.Z, bMaxv.Z);
}
public static Vector4i CompareEqual (this Vector4i v1, Vector4i v2)
{
return new Vector4i ((int)(v1.x == v2.x ? -1 : 0), (int)(v1.y == v2.y ? -1 : 0), (int)(v1.z == v2.z ? -1 : 0), (int)(v1.w == v2.w ? -1 : 0));
}
public static unsafe Vector8s PackWithSignedSaturation (this Vector4i va, Vector4i vb) {
Vector8s res = new Vector8s ();
int *a = (int*)&va;
int *b = (int*)&vb;
short *c = (short*)&res;
for (int i = 0; i < 4; ++i)
*c++ = (short)System.Math.Max (System.Math.Min ((int)*a++, short.MaxValue), short.MinValue);
for (int i = 0; i < 4; ++i)
*c++ = (short)System.Math.Max (System.Math.Min ((int)*b++, short.MaxValue), short.MinValue);
return res;
}
public static unsafe void PrefetchNonTemporal (Vector4i *res)
{
}
public static unsafe void PrefetchTemporalAllCacheLevels (Vector4i *res)
{
}
public static void PrefetchTemporal2ndLevelCache (ref Vector4i res)
{
}
public static unsafe void StoreAligned (Vector4i *res, Vector4i val)
{
*res = val;
}
public static unsafe Vector2d ConvertToDouble(this Vector4i v0)
{
return(new Vector2d(v0.X, v0.Y));
}
public static Vector4i LoadAligned(ref Vector4i v)
{
return(v);
}
public static Vector4i CompareGreaterThan(Vector4i v1, Vector4i v2)
{
return(new Vector4i((int)(v1.x > v2.x ? -1 : 0), (int)(v1.y > v2.y ? -1 : 0), (int)(v1.z > v2.z ? -1 : 0), (int)(v1.w > v2.w ? -1 : 0)));
}
public static Vector4i CompareEqual(Vector4i v1, Vector4i v2)
{
return(new Vector4i((int)(v1.x == v2.x ? -1 : 0), (int)(v1.y == v2.y ? -1 : 0), (int)(v1.z == v2.z ? -1 : 0), (int)(v1.w == v2.w ? -1 : 0)));
}
public static Vector4i Min(Vector4i v1, Vector4i v2)
{
return(new Vector4i(System.Math.Min(v1.x, v2.x), System.Math.Min(v1.y, v2.y), System.Math.Min(v1.z, v2.z), System.Math.Min(v1.w, v2.w)));
}
public static Vector4i UnpackHigh(Vector4i v1, Vector4i v2)
{
return(new Vector4i(v1.z, v2.z, v1.w, v2.w));
}
public static Vector4i UnpackLow(Vector4i v1, Vector4i v2)
{
return(new Vector4i(v1.x, v2.x, v1.y, v2.y));
}
public static Vector4i UnpackLow (this Vector4i v1, Vector4i v2)
{
return new Vector4i (v1.x, v2.x, v1.y, v2.y);
}
public static unsafe Vector4i LogicalRightShift (this Vector4i v1, int amount)
{
Vector4i res = new Vector4i ();
int *a = &v1.x;
int *b = &res.x;
for (int i = 0; i < 4; ++i)
*b++ = (int)((uint)(*a++) >> amount);
return res;
}
public static void StoreAligned(ref Vector4i res, Vector4i val)
{
res = val;
}
public static unsafe Vector4i LoadAligned (Vector4i *v)
{
return *v;
}
public static unsafe void StoreAligned(Vector4i *res, Vector4i val)
{
*res = val;
}
public static void PrefetchTemporalAllCacheLevels (ref Vector4i res)
{
}
public static void PrefetchTemporalAllCacheLevels(ref Vector4i res)
{
}
public static void PrefetchNonTemporal (ref Vector4i res)
{
}
public static void PrefetchTemporal2ndLevelCache(ref Vector4i res)
{
}
public static unsafe void PrefetchTemporal2ndLevelCache (Vector4i *res)
{
}
public static void PrefetchNonTemporal(ref Vector4i res)
{
}
public static unsafe Vector8us PackWithUnsignedSaturation (this Vector4i va, Vector4i vb) {
Vector8us res = new Vector8us ();
int *a = (int*)&va;
int *b = (int*)&vb;
ushort *c = (ushort*)&res;
for (int i = 0; i < 4; ++i)
*c++ = (ushort)System.Math.Max (0, System.Math.Min (*a++, ushort.MaxValue));
for (int i = 0; i < 4; ++i)
*c++ = (ushort)System.Math.Max (0, System.Math.Min (*b++, ushort.MaxValue));
return res;
}
public static unsafe int ExtractByteMask (Vector4i va) {
int res = 0;
byte *a = (byte*)&va;
for (int i = 0; i < 16; ++i)
res |= (*a++ & 0x80) >> 7 << i;
return res;
}
public static Vector4i Min (this Vector4i v1, Vector4i v2)
{
return new Vector4i (System.Math.Min (v1.x, v2.x), System.Math.Min (v1.y, v2.y), System.Math.Min (v1.z, v2.z), System.Math.Min (v1.w, v2.w));
}
public static unsafe Vector4i Shuffle (Vector4i v1, ShuffleSel sel)
{
int *ptr = (int*)&v1;
int idx = (int)sel;
return new Vector4i (*(ptr + ((idx >> 0) & 0x3)),*(ptr + ((idx >> 2) & 0x3)),*(ptr + ((idx >> 4) & 0x3)),*(ptr + ((idx >> 6) & 0x3)));
}
public static Vector4i CompareGreaterThan (this Vector4i v1, Vector4i v2)
{
return new Vector4i ((int)(v1.x > v2.x ? -1 : 0), (int)(v1.y > v2.y ? -1 : 0), (int)(v1.z > v2.z ? -1 : 0), (int)(v1.w > v2.w ? -1 : 0));
}
public static Vector4i LoadAligned (ref Vector4i v)
{
return v;
}
public static Vector4i UnpackHigh (this Vector4i v1, Vector4i v2)
{
return new Vector4i (v1.z, v2.z, v1.w, v2.w);
}
public static void StoreAligned (ref Vector4i res, Vector4i val)
{
res = val;
}
public static unsafe Vector4i Shuffle (this Vector4i v1, Vector4i v2, ShuffleSel sel)
{
int *p1 = (int*)&v1;
int *p2 = (int*)&v2;
int idx = (int)sel;
return new Vector4i (*(p1 + ((idx >> 0) & 0x3)), *(p1 + ((idx >> 2) & 0x3)), *(p2 + ((idx >> 4) & 0x3)), *(p2 + ((idx >> 6) & 0x3)));
}
public static unsafe Vector4f ConvertToFloat(this Vector4i v0)
{
return(new Vector4f(v0.X, v0.Y, v0.Z, v0.W));
}