public void TestEquals()
{
Vector2H a = new Vector2H(1.0f, 2.0f);
Vector2H b = new Vector2H(4.0f, 5.0f);
Vector2H c = new Vector2H(1.0f, 2.0f);
Assert.IsTrue(a.Equals(c));
Assert.IsTrue(c.Equals(a));
Assert.IsTrue(a == c);
Assert.IsTrue(c == a);
Assert.IsFalse(c != a);
Assert.IsFalse(c != a);
Assert.IsFalse(a.Equals(b));
Assert.IsFalse(b.Equals(a));
Assert.IsFalse(a == b);
Assert.IsFalse(b == a);
Assert.IsTrue(a != b);
Assert.IsTrue(b != a);
object objA = a;
object objB = b;
object objC = c;
Assert.IsTrue(a.Equals(objA));
Assert.IsTrue(a.Equals(objC));
Assert.IsFalse(a.Equals(objB));
Assert.IsTrue(objA.Equals(objC));
Assert.IsFalse(objA.Equals(objB));
Assert.IsFalse(a.Equals(null));
Assert.IsFalse(a.Equals(5));
}
public void Construct()
{
Vector2H v1 = new Vector2H(1.0f, 2.0f);
Assert.AreEqual((Half)1.0f, v1.X);
Assert.AreEqual((Half)2.0f, v1.Y);
Vector2H v2 = new Vector2H(1.0, 2.0);
Assert.AreEqual((Half)1.0, v2.X);
Assert.AreEqual((Half)2.0, v2.Y);
}
private void UpdateAll(Context context)
{
//
// Since billboards were added or removed, all billboards are
// rewritten so dirty billboards are automatically cleaned.
//
_dirtyBillboards.Clear();
//
// Create vertex array with appropriately sized vertex buffers
//
DisposeVertexArray();
if (_billboards.Count != 0)
{
CreateVertexArray(context);
//
// Write vertex buffers
//
Vector3F[] positions = new Vector3F[_billboards.Count];
Vector4H[] textureCoordinates = new Vector4H[_billboards.Count];
BlittableRGBA[] colors = new BlittableRGBA[_billboards.Count];
byte[] origins = new byte[_billboards.Count];
Vector2H[] pixelOffets = new Vector2H[_billboards.Count];
for (int i = 0; i < _billboards.Count; ++i)
{
Billboard b = _billboards[i];
positions[i] = b.Position.ToVector3F();
textureCoordinates[i] = new Vector4H(
b.TextureCoordinates.LowerLeft.X, b.TextureCoordinates.LowerLeft.Y,
b.TextureCoordinates.UpperRight.X, b.TextureCoordinates.UpperRight.Y);
colors[i] = new BlittableRGBA(b.Color);
origins[i] = BillboardOrigin(b);
pixelOffets[i] = b.PixelOffset;
b.VertexBufferOffset = i;
b.Dirty = false;
}
CopyBillboardsFromSystemMemory(positions, textureCoordinates, colors, origins, pixelOffets, 0, _billboards.Count);
_rewriteBillboards = false;
}
}
internal void Update(Context context, ShaderProgram sp)
{
if (_va == null)
{
VertexBufferAttribute positionAttribute = new VertexBufferAttribute(
_positionBuffer, ComponentDatatype.Float, 2);
VertexBufferAttribute textureCoordinatesAttribute = new VertexBufferAttribute(
_textureCoordinatesBuffer, ComponentDatatype.HalfFloat, 2);
_va = context.CreateVertexArray();
_va.Attributes[sp.VertexAttributes["position"].Location] = positionAttribute;
_va.Attributes[sp.VertexAttributes["textureCoordinates"].Location] = textureCoordinatesAttribute;
}
if (_viewport != context.Viewport)
{
//
// Bottom and top swapped: MS -> OpenGL
//
float left = context.Viewport.Left;
float bottom = context.Viewport.Top;
float right = context.Viewport.Right;
float top = context.Viewport.Bottom;
Vector2F[] positions = new Vector2F[]
{
new Vector2F(left, bottom),
new Vector2F(right, bottom),
new Vector2F(left, top),
new Vector2F(right, top)
};
_positionBuffer.CopyFromSystemMemory(positions);
Vector2H[] textureCoordinates = new Vector2H[]
{
new Vector2H(0, 0),
new Vector2H(1, 0),
new Vector2H(0, 1),
new Vector2H(1, 1)
};
_textureCoordinatesBuffer.CopyFromSystemMemory(textureCoordinates);
_viewport = context.Viewport;
}
}
internal void Update(Context context, ShaderProgram sp)
{
if (_va == null)
{
VertexBufferAttribute positionAttribute = new VertexBufferAttribute(
_positionBuffer, ComponentDatatype.Float, 2);
VertexBufferAttribute textureCoordinatesAttribute = new VertexBufferAttribute(
_textureCoordinatesBuffer, ComponentDatatype.HalfFloat, 2);
_va = context.CreateVertexArray();
_va.Attributes[sp.VertexAttributes["position"].Location] = positionAttribute;
_va.Attributes[sp.VertexAttributes["textureCoordinates"].Location] = textureCoordinatesAttribute;
}
if (_viewport != context.Viewport)
{
//
// Bottom and top swapped: MS -> OpenGL
//
float left = context.Viewport.Left;
float bottom = context.Viewport.Top;
float right = context.Viewport.Right;
float top = context.Viewport.Bottom;
Vector2F[] positions = new Vector2F[]
{
new Vector2F(left, bottom),
new Vector2F(right, bottom),
new Vector2F(left, top),
new Vector2F(right, top)
};
_positionBuffer.CopyFromSystemMemory(positions);
Vector2H[] textureCoordinates = new Vector2H[]
{
new Vector2H(0, 0),
new Vector2H(1, 0),
new Vector2H(0, 1),
new Vector2H(1, 1)
};
_textureCoordinatesBuffer.CopyFromSystemMemory(textureCoordinates);
_viewport = context.Viewport;
}
}
private void UpdateDirty()
{
// PERFORMANCE: Sort by buffer offset
// PERFORMANCE: Map buffer range
// PERFORMANCE: Round robin multiple buffers
Vector3F[] positions = new Vector3F[_dirtyBillboards.Count];
Vector4H[] textureCoordinates = new Vector4H[_dirtyBillboards.Count];
BlittableRGBA[] colors = new BlittableRGBA[_dirtyBillboards.Count];
byte[] origins = new byte[_dirtyBillboards.Count];
Vector2H[] pixelOffets = new Vector2H[_dirtyBillboards.Count];
int bufferOffset = _dirtyBillboards[0].VertexBufferOffset;
int previousBufferOffset = bufferOffset - 1;
int length = 0;
for (int i = 0; i < _dirtyBillboards.Count; ++i)
{
Billboard b = _dirtyBillboards[i];
if (previousBufferOffset != b.VertexBufferOffset - 1)
{
CopyBillboardsFromSystemMemory(positions, textureCoordinates, colors, origins, pixelOffets, bufferOffset, length);
bufferOffset = b.VertexBufferOffset;
length = 0;
}
positions[length] = b.Position.ToVector3F();
textureCoordinates[length] = new Vector4H(
b.TextureCoordinates.LowerLeft.X, b.TextureCoordinates.LowerLeft.Y,
b.TextureCoordinates.UpperRight.X, b.TextureCoordinates.UpperRight.Y);
colors[length] = new BlittableRGBA(b.Color);
origins[length] = BillboardOrigin(b);
pixelOffets[length] = b.PixelOffset;
++length;
previousBufferOffset = b.VertexBufferOffset;
b.Dirty = false;
}
CopyBillboardsFromSystemMemory(positions, textureCoordinates, colors, origins, pixelOffets, bufferOffset, length);
_dirtyBillboards.Clear();
}
public void ToVector2B()
{
Vector2H a = new Vector2H(1.0, 0.0);
Vector2B sA = a.ToVector2B();
Assert.IsTrue(sA.X);
Assert.IsFalse(sA.Y);
}
public void ToVector2I()
{
Vector2H a = new Vector2H(1.0, 2.0);
Vector2I sA = a.ToVector2I();
Assert.AreEqual(1, sA.X);
Assert.AreEqual(2, sA.Y);
}
public void ToVector2D()
{
Vector2H a = new Vector2H(1.0, 2.0);
Vector2D sA = a.ToVector2D();
Assert.AreEqual(1.0, sA.X, 1e-7);
Assert.AreEqual(2.0, sA.Y, 1e-7);
}
public void TestToString()
{
CultureInfo originalCulture = Thread.CurrentThread.CurrentCulture;
try
{
Thread.CurrentThread.CurrentCulture = new CultureInfo("tr-TR");
Vector2H a = new Vector2H(1.23f, 2.34f);
Assert.AreEqual("(1,230469, 2,339844)", a.ToString());
}
finally
{
Thread.CurrentThread.CurrentCulture = originalCulture;
}
}
public void TestGetHashCode()
{
Vector2H a = new Vector2H(1.0f, 2.0f);
Vector2H b = new Vector2H(4.0f, 5.0f);
Vector2H c = new Vector2H(1.0f, 2.0f);
Assert.AreEqual(a.GetHashCode(), c.GetHashCode());
Assert.AreNotEqual(a.GetHashCode(), b.GetHashCode());
}
internal void Update(Context context, ShaderProgram sp)
{
if (_va == null)
{
VertexBufferAttribute positionAttribute = new VertexBufferAttribute(
_positionBuffer, ComponentDatatype.Float, 2);
VertexBufferAttribute textureCoordinatesAttribute = new VertexBufferAttribute(
_textureCoordinatesBuffer, ComponentDatatype.HalfFloat, 2);
_va = context.CreateVertexArray();
_va.Attributes[sp.VertexAttributes["position"].Location] = positionAttribute;
_va.Attributes[sp.VertexAttributes["textureCoordinates"].Location] = textureCoordinatesAttribute;
_va.IndexBuffer = _indexBuffer;
}
// 检测当前视口变换并重新计算视口矩形
if (_viewport != context.Viewport)
{
//
// Bottom and top swapped: MS -> OpenGL
//
float left = context.Viewport.Left;
float bottom = context.Viewport.Top;
float right = context.Viewport.Right;
float top = context.Viewport.Bottom;
Vector2F[] positions = new Vector2F[]
{
// left eye verts
new Vector2F(left, bottom), // -1, -1
new Vector2F((left + right) / 2.0f, bottom), // 0, -1
new Vector2F(left, top), // -1, 1
new Vector2F((left + right) / 2.0f, top), // 0, 1
// right eye verts
new Vector2F((left + right) / 2.0f, bottom), // 0, -1
new Vector2F(right, bottom), // 1, -1
new Vector2F((left + right) / 2.0f, top), // 0, 1
new Vector2F(right, top) // 1, 1
};
_positionBuffer.CopyFromSystemMemory(positions);
Vector2H[] textureCoordinates = new Vector2H[]
{
// left eye tex coord
new Vector2H(0, 1),
new Vector2H(1, 1),
new Vector2H(0, 0),
new Vector2H(1, 0),
// right eye tex coord
new Vector2H(0, 1),
new Vector2H(1, 1),
new Vector2H(0, 0),
new Vector2H(1, 0),
};
_textureCoordinatesBuffer.CopyFromSystemMemory(textureCoordinates);
ushort[] index = new ushort[] { 0, 1, 3, 0, 3, 2, 4, 5, 7, 4, 7, 6 };
_indexBuffer.CopyFromSystemMemory(index);
_viewport = context.Viewport;
}
}
