private unsafe void CalculateRectangleVertices(UIImageDrawInfo *drawInfo, VertexPositionColorTextureSwizzle *vertex)
{
var currentPosition = drawInfo->LeftTopCornerWorld;
// snap first pixel to prevent possible problems when left/top is in the middle of a pixel
if (drawInfo->SnapImage)
{
var invW = 1.0f / currentPosition.W;
var backBufferHalfWidth = GraphicsContext.CommandList.RenderTarget.ViewWidth / 2;
var backBufferHalfHeight = GraphicsContext.CommandList.RenderTarget.ViewHeight / 2;
currentPosition.X *= invW;
currentPosition.Y *= invW;
currentPosition.X = (float)(Math.Round(currentPosition.X * backBufferHalfWidth) / backBufferHalfWidth);
currentPosition.Y = (float)(Math.Round(currentPosition.Y * backBufferHalfHeight) / backBufferHalfHeight);
currentPosition.X *= currentPosition.W;
currentPosition.Y *= currentPosition.W;
}
var textureCoordX = new Vector2(drawInfo->Source.Left, drawInfo->Source.Right);
var textureCoordY = new Vector2(drawInfo->Source.Top, drawInfo->Source.Bottom);
// set the two first line of vertices
for (var r = 0; r < 2; r++)
{
for (var c = 0; c < 2; c++)
{
vertex->Color = drawInfo->Color;
vertex->Swizzle = (int)drawInfo->Swizzle;
vertex->TextureCoordinate.X = textureCoordX[c];
vertex->TextureCoordinate.Y = textureCoordY[r];
vertex->Position.X = currentPosition.X;
vertex->Position.Y = currentPosition.Y;
vertex->Position.Z = currentPosition.Z - currentPosition.W * drawInfo->DepthBias * DepthBiasShiftOneUnit;
vertex->Position.W = currentPosition.W;
if (drawInfo->SnapImage)
{
var backBufferHalfWidth = GraphicsContext.CommandList.RenderTarget.ViewWidth / 2;
var backBufferHalfHeight = GraphicsContext.CommandList.RenderTarget.ViewHeight / 2;
vertex->Position.X = (float)(Math.Round(vertex->Position.X * backBufferHalfWidth) / backBufferHalfWidth);
vertex->Position.Y = (float)(Math.Round(vertex->Position.Y * backBufferHalfHeight) / backBufferHalfHeight);
}
vertex++;
if (c == 0)
{
Vector4.Add(ref currentPosition, ref drawInfo->UnitXWorld, out currentPosition);
}
else
{
Vector4.Subtract(ref currentPosition, ref drawInfo->UnitXWorld, out currentPosition);
}
}
Vector4.Add(ref currentPosition, ref drawInfo->UnitYWorld, out currentPosition);
}
}
private unsafe void CalculateBorderRectangleVertices(UIImageDrawInfo *drawInfo, VertexPositionColorTextureSwizzle *vertex)
{
// set the texture uv vectors
var uvX = new Vector4();
uvX[0] = drawInfo->Source.Left;
uvX[3] = drawInfo->Source.Right;
uvX[1] = uvX[0] + drawInfo->Source.Width * drawInfo->BorderSize.X;
uvX[2] = uvX[3] - drawInfo->Source.Width * drawInfo->BorderSize.Z;
var uvY = new Vector4();
uvY[0] = drawInfo->Source.Top;
uvY[3] = drawInfo->Source.Bottom;
uvY[1] = uvY[0] + drawInfo->Source.Height * drawInfo->BorderSize.Y;
uvY[2] = uvY[3] - drawInfo->Source.Height * drawInfo->BorderSize.W;
// set the shift vectors
shiftVectorX[0] = Vector4.Zero;
Vector4.Multiply(ref drawInfo->UnitXWorld, drawInfo->VertexShift.X, out shiftVectorX[1]);
Vector4.Multiply(ref drawInfo->UnitXWorld, drawInfo->VertexShift.Z, out shiftVectorX[2]);
shiftVectorX[3] = drawInfo->UnitXWorld;
shiftVectorY[0] = Vector4.Zero;
Vector4.Multiply(ref drawInfo->UnitYWorld, drawInfo->VertexShift.Y, out shiftVectorY[1]);
Vector4.Multiply(ref drawInfo->UnitYWorld, drawInfo->VertexShift.W, out shiftVectorY[2]);
shiftVectorY[3] = drawInfo->UnitYWorld;
// convert colors here instead of in the loop
Color4 colorScale = drawInfo->ColorScale.ToColor4();
Color4 colorAdd = drawInfo->ColorAdd.ToColor4();
for (var r = 0; r < 4; r++)
{
Vector4 currentRowPosition;
Vector4.Add(ref drawInfo->LeftTopCornerWorld, ref shiftVectorY[r], out currentRowPosition);
float uvYr = uvY[r]; // grab it out here
for (var c = 0; c < 4; c++)
{
Vector4 currentPosition;
Vector4.Add(ref currentRowPosition, ref shiftVectorX[c], out currentPosition);
vertex->Position.X = currentPosition.X;
vertex->Position.Y = currentPosition.Y;
vertex->Position.Z = currentPosition.Z - currentPosition.W * drawInfo->DepthBias * DepthBiasShiftOneUnit;
vertex->Position.W = currentPosition.W;
vertex->ColorScale = colorScale;
vertex->ColorAdd = colorAdd;
vertex->TextureCoordinate.X = c == 0 ? uvX.X : uvX.Y;
vertex->TextureCoordinate.Y = uvYr;
vertex->Swizzle = (int)drawInfo->Swizzle;
vertex++;
}
}
}
private static unsafe void CalculateCubeVertices(UIImageDrawInfo *drawInfo, VertexPositionColorTextureSwizzle *vertex)
{
var currentPosition = drawInfo->LeftTopCornerWorld;
// convert colors here instead of in the loop
Color4 colorScale = drawInfo->ColorScale.ToColor4();
Color4 colorAdd = drawInfo->ColorAdd.ToColor4();
// set the two first line of vertices
for (var l = 0; l < 2; ++l)
{
for (var r = 0; r < 2; r++)
{
for (var c = 0; c < 2; c++)
{
vertex->ColorScale = colorScale;
vertex->ColorAdd = colorAdd;
vertex->Swizzle = (int)drawInfo->Swizzle;
vertex->TextureCoordinate.X = 0; // cubes are used only for color
vertex->TextureCoordinate.Y = 0; // cubes are used only for color
vertex->Position.X = currentPosition.X;
vertex->Position.Y = currentPosition.Y;
vertex->Position.Z = currentPosition.Z - currentPosition.W * drawInfo->DepthBias * DepthBiasShiftOneUnit;
vertex->Position.W = currentPosition.W;
vertex++;
if (c == 0)
{
Vector4.Add(ref currentPosition, ref drawInfo->UnitXWorld, out currentPosition);
}
else
{
Vector4.Subtract(ref currentPosition, ref drawInfo->UnitXWorld, out currentPosition);
}
}
if (r == 0)
{
Vector4.Add(ref currentPosition, ref drawInfo->UnitYWorld, out currentPosition);
}
else
{
Vector4.Subtract(ref currentPosition, ref drawInfo->UnitYWorld, out currentPosition);
}
}
Vector4.Add(ref currentPosition, ref drawInfo->UnitZWorld, out currentPosition);
}
}
private unsafe void CalculateRectangleVertices(UIImageDrawInfo *drawInfo, VertexPositionColorTextureSwizzle *vertex)
{
var currentPosition = drawInfo->LeftTopCornerWorld;
// snap first pixel to prevent possible problems when left/top is in the middle of a pixel
if (drawInfo->SnapImage)
{
var invW = 1.0f / currentPosition.W;
var backBufferHalfWidth = GraphicsContext.CommandList.RenderTarget.ViewWidth / 2;
var backBufferHalfHeight = GraphicsContext.CommandList.RenderTarget.ViewHeight / 2;
currentPosition.X *= invW;
currentPosition.Y *= invW;
currentPosition.X = (float)(Math.Round(currentPosition.X * backBufferHalfWidth) / backBufferHalfWidth);
currentPosition.Y = (float)(Math.Round(currentPosition.Y * backBufferHalfHeight) / backBufferHalfHeight);
currentPosition.X *= currentPosition.W;
currentPosition.Y *= currentPosition.W;
}
float tcx0 = drawInfo->Source.Left;
float tcx1 = drawInfo->Source.Right;
float tcy0 = drawInfo->Source.Top;
float tcy1 = drawInfo->Source.Bottom;
// convert colors here instead of in the loop
Color4 colorScale = drawInfo->ColorScale;
float depthShift = drawInfo->DepthBias * DepthBiasShiftOneUnit;
// set the two first line of vertices
for (var r = 0; r < 2; r++)
{
// unroll this loop
// c = 0
vertex->ColorScale = colorScale;
vertex->Swizzle = (int)drawInfo->Swizzle;
vertex->TextureCoordinate.X = tcx0;
vertex->TextureCoordinate.Y = r == 0 ? tcy0 : tcy1;
vertex->Position.X = currentPosition.X;
vertex->Position.Y = currentPosition.Y;
vertex->Position.Z = currentPosition.Z - currentPosition.W * depthShift;
vertex->Position.W = currentPosition.W;
if (drawInfo->SnapImage)
{
var backBufferHalfWidth = GraphicsContext.CommandList.RenderTarget.ViewWidth / 2;
var backBufferHalfHeight = GraphicsContext.CommandList.RenderTarget.ViewHeight / 2;
vertex->Position.X = (float)(Math.Round(vertex->Position.X * backBufferHalfWidth) / backBufferHalfWidth);
vertex->Position.Y = (float)(Math.Round(vertex->Position.Y * backBufferHalfHeight) / backBufferHalfHeight);
}
vertex++;
Vector4.Add(ref currentPosition, ref drawInfo->UnitXWorld, out currentPosition);
// c = 1
vertex->ColorScale = colorScale;
vertex->Swizzle = (int)drawInfo->Swizzle;
vertex->TextureCoordinate.X = tcx1;
vertex->TextureCoordinate.Y = r == 0 ? tcy0 : tcy1;
vertex->Position.X = currentPosition.X;
vertex->Position.Y = currentPosition.Y;
vertex->Position.Z = currentPosition.Z - currentPosition.W * depthShift;
vertex->Position.W = currentPosition.W;
if (drawInfo->SnapImage)
{
var backBufferHalfWidth = GraphicsContext.CommandList.RenderTarget.ViewWidth / 2;
var backBufferHalfHeight = GraphicsContext.CommandList.RenderTarget.ViewHeight / 2;
vertex->Position.X = (float)(Math.Round(vertex->Position.X * backBufferHalfWidth) / backBufferHalfWidth);
vertex->Position.Y = (float)(Math.Round(vertex->Position.Y * backBufferHalfHeight) / backBufferHalfHeight);
}
vertex++;
Vector4.Subtract(ref currentPosition, ref drawInfo->UnitXWorld, out currentPosition);
Vector4.Add(ref currentPosition, ref drawInfo->UnitYWorld, out currentPosition);
}
}
