public static RectInt32 CoalesceCopy(this RectInt32 rect)
{
if (rect.HasZeroArea)
{
return(RectInt32.Zero);
}
return(rect);
}
public static RectInt32 FromPoints(PointInt32 a, PointInt32 b)
{
int left = Math.Min(a.X, b.X);
int top = Math.Min(a.Y, b.Y);
int right = Math.Max(a.X, b.X);
int bottom = Math.Max(a.Y, b.Y);
return(RectInt32.FromEdges(left, top, right, bottom));
}
public static RectInt32 FromPixelPoints(PointInt32 a, PointInt32 b)
{
RectInt32 num = FromPoints(a, b);
int num2 = num.Width + 1;
num.Width = num2;
num2 = num.Height + 1;
num.Height = num2;
return(num);
}
public static void Split(RectInt32 rect, RectInt32[] rects)
{
int height = rect.Height;
for (int i = 0; i < rects.Length; i++)
{
int left = rect.Left;
int y = rect.Top + ((height * i) / rects.Length);
int right = rect.Right;
int num6 = rect.Top + ((height * (i + 1)) / rects.Length);
rects[i] = new RectInt32(left, y, right - left, num6 - y);
}
}
public static RectInt32 Bounds(this RectInt32[] rects, int startIndex, int length)
{
Validate.Begin().IsNotNull <RectInt32[]>(rects, "rects").Check().IsRangeValid(rects.Length, startIndex, length, "rects").Check();
if (length == 0)
{
return(RectInt32.Zero);
}
RectInt32 a = rects[startIndex];
for (int i = startIndex + 1; i < (startIndex + length); i++)
{
a = RectInt32.Union(a, rects[i]);
}
return(a);
}
public static RectInt32?Union(RectInt32?rect1, RectInt32?rect2)
{
if (!rect1.HasValue && !rect2.HasValue)
{
return(null);
}
if (rect1.HasValue && !rect2.HasValue)
{
return(new RectInt32?(rect1.Value));
}
if (!rect1.HasValue && rect2.HasValue)
{
return(new RectInt32?(rect2.Value));
}
return(new RectInt32?(RectInt32.Union(rect1.Value, rect2.Value)));
}
public static RectInt32[] SimplifyRegion(IList <RectInt32> rects, int maxRects)
{
if (maxRects < 1)
{
throw new ArgumentOutOfRangeException($"maxRects={maxRects} but must be >= 1");
}
if (rects.Count < maxRects)
{
return(rects.ToArrayEx <RectInt32>());
}
RectInt32[] numArray = new RectInt32[maxRects];
for (int i = 0; i < maxRects; i++)
{
int startIndex = (i * rects.Count) / maxRects;
int length = Math.Min(rects.Count, ((i + 1) * rects.Count) / maxRects) - startIndex;
numArray[i] = rects.Bounds(startIndex, length);
}
return(numArray);
}
private int GetScansStartIndex(int srcTop, int srcBottom)
{
int num11;
int count = this.scans.Count;
int num2 = 0;
int num3 = count - 1;
int index = 0;
while (num2 <= num3)
{
int num5 = num2 + ((num3 - num2) >> 1);
RectInt32 scanAt = this.GetScanAt(num5);
int y = scanAt.Y;
int num8 = scanAt.Y + scanAt.Height;
if (y > srcBottom)
{
num3 = num5 - 1;
}
else
{
if (num8 < srcTop)
{
num2 = num5 + 1;
continue;
}
index = num5;
break;
}
}
do
{
index--;
if (index == -1)
{
return(0);
}
RectInt32 num9 = this.GetScanAt(index);
int num10 = num9.Y;
num11 = num9.Y + num9.Height;
}while (num11 >= srcTop);
index++;
return(index);
}
public unsafe TransformedBilinearContentRenderer(SizeInt32 size, ISurface <ColorBgra> content, RectInt32 srcCoverageBounds, Matrix3x2Double matrix) : base(size.Width, size.Height, true)
{
Validate.Begin().IsPositive(size.Width, "size.Width").IsPositive(size.Height, "size.Height").IsTrue(matrix.HasInverse, "matrix.HasInverse").Check();
this.size = size;
this.content = content;
this.srcCoverageBounds = srcCoverageBounds;
this.contentWidth = this.content.Width;
this.contentHeight = this.content.Height;
this.contentScan0 = (ColorBgra *)this.content.Scan0;
this.contentStride = this.content.Stride;
this.matrix = matrix;
this.invMatrix = this.matrix.Inverse;
PointDouble pt = new PointDouble(0.5, 0.5);
PointDouble num2 = new PointDouble(0.5, 1.5);
PointDouble num3 = new PointDouble(1.5, 0.5);
PointDouble num4 = this.invMatrix.Transform(pt);
PointDouble num5 = this.invMatrix.Transform(num2);
PointDouble num6 = this.invMatrix.Transform(num3);
PointDouble num7 = new PointDouble(num4.X - 0.5, num4.Y - 0.5);
PointDouble num8 = new PointDouble(num5.X - 0.5, num5.Y - 0.5);
PointDouble num9 = new PointDouble(num6.X - 0.5, num6.Y - 0.5);
double num10 = num7.X * 16777216.0;
double num11 = num7.Y * 16777216.0;
this.srcOffsetOriginXFp = DoubleUtil.ClampToInt64(num10);
this.srcOffsetOriginYFp = DoubleUtil.ClampToInt64(num11);
double num12 = num9.X - num7.X;
double num13 = num9.Y - num7.Y;
double num14 = num8.X - num7.X;
double num15 = num8.Y - num7.Y;
double num16 = num12 * 16777216.0;
double num17 = num13 * 16777216.0;
double num18 = num14 * 16777216.0;
double num19 = num15 * 16777216.0;
this.srcOffsetDxDxFp = DoubleUtil.ClampToInt64(num16);
this.srcOffsetDyDxFp = DoubleUtil.ClampToInt64(num17);
this.srcOffsetDxDyFp = DoubleUtil.ClampToInt64(num18);
this.srcOffsetDyDyFp = DoubleUtil.ClampToInt64(num19);
}
public static RectInt32 Bounds(this IEnumerable <RectInt32> rects)
{
RectInt32 zero = RectInt32.Zero;
bool flag = true;
foreach (RectInt32 num2 in rects)
{
if (flag)
{
zero = num2;
flag = false;
}
else
{
zero = RectInt32.Union(zero, num2);
}
}
if (flag)
{
return(RectInt32.Empty);
}
return(zero);
}
private unsafe void RenderContent(ISurface <ColorBgra> dstContent, PointInt32 renderOffset)
{
int width = dstContent.Width;
int height = dstContent.Height;
int stride = dstContent.Stride;
int num4 = stride - (width * 4);
RectInt32 num5 = RectInt32.Intersect(this.srcCoverageBounds, new RectInt32(0, 0, this.contentWidth, this.contentHeight));
int left = num5.Left;
int top = num5.Top;
int right = num5.Right;
int bottom = num5.Bottom;
long num10 = (this.srcOffsetOriginXFp + (renderOffset.X * this.srcOffsetDxDxFp)) + (renderOffset.Y * this.srcOffsetDxDyFp);
long num11 = (this.srcOffsetOriginYFp + (renderOffset.X * this.srcOffsetDyDxFp)) + (renderOffset.Y * this.srcOffsetDyDyFp);
ColorBgra *bgraPtr = this.contentScan0;
int contentStride = this.contentStride;
ColorBgra *bgraPtr2 = (ColorBgra *)dstContent.Scan0;
ColorBgra *bgraPtr3 = bgraPtr2 + width;
for (int i = 0; i < height; i++)
{
uint num16;
int num17;
base.ThrowIfCancellationRequested();
long num14 = num10;
long num15 = num11;
ColorBgra *bgraPtr4 = bgraPtr3 - width;
int num18 = (int)((long)((bgraPtr3 - bgraPtr4) / sizeof(ColorBgra)));
int num19 = (int)(num14 >> 0x18);
int num20 = (int)(num15 >> 0x18);
int num21 = ((num19 >= left) && (num19 < right)) ? 1 : 0;
int num22 = ((num20 >= top) && (num20 < bottom)) ? 1 : 0;
int num23 = ((num19 >= (left - 1)) && (num19 < (right - 1))) ? 1 : 0;
int num24 = ((num20 >= (top - 1)) && (num20 < (bottom - 1))) ? 1 : 0;
long num25 = num14 + (this.srcOffsetDxDxFp * num18);
long num26 = num15 + (this.srcOffsetDyDxFp * num18);
int num27 = (int)(num25 >> 0x18);
int num28 = (int)(num26 >> 0x18);
int num29 = ((num27 >= left) && (num27 < right)) ? 1 : 0;
int num30 = ((num28 >= top) && (num28 < bottom)) ? 1 : 0;
int num31 = ((num27 >= (left - 1)) && (num27 < (right - 1))) ? 1 : 0;
int num32 = ((num28 >= (top - 1)) && (num28 < (bottom - 1))) ? 1 : 0;
if ((((((((num21 + num22) + num23) + num24) + num29) + num30) + num31) + num32) == 8)
{
num17 = num18;
}
else
{
num17 = 0;
}
while ((bgraPtr4 < bgraPtr3) && (num17 > 0))
{
num16 = 0;
int num33 = (int)(num14 >> 0x18);
int num34 = (int)(num15 >> 0x18);
int num35 = 0x100 - (((int)(num14 & 0xffffffL)) >> 0x10);
int num36 = 0x100 - (((int)(num15 & 0xffffffL)) >> 0x10);
int num37 = (num35 * num36) >> 8;
int num38 = ((0x100 - num35) * num36) >> 8;
int num39 = (num35 * (0x100 - num36)) >> 8;
int num40 = ((0x100 - num35) * (0x100 - num36)) >> 8;
int num41 = num37;
int num42 = num38;
int num43 = num39;
int num44 = num40;
ushort d = (ushort)(((num41 + num42) + num43) + num44);
long num46 = (num34 * contentStride) + (num33 * 4);
ColorBgra32 bgra = *((ColorBgra32 *)(bgraPtr + num46));
ColorBgra32 bgra2 = *((ColorBgra32 *)(bgraPtr + (num46 + 4L)));
ColorBgra32 bgra3 = *((ColorBgra32 *)(bgraPtr + (num46 + contentStride)));
ColorBgra32 bgra4 = *((ColorBgra32 *)(bgraPtr + ((num46 + contentStride) + 4L)));
int num47 = bgra.A * num41;
int num48 = bgra2.A * num42;
int num49 = bgra3.A * num43;
int num50 = bgra4.A * num44;
ushort n = (ushort)(((num47 + num48) + num49) + num50);
if (n != 0)
{
uint num52 = UInt32Util.FastDivideByUInt16(n, d);
uint num53 = UInt32Util.FastDivideByUInt16((uint)((((num47 * bgra.B) + (num48 * bgra2.B)) + (num49 * bgra3.B)) + (num50 * bgra4.B)), n);
uint num54 = UInt32Util.FastDivideByUInt16((uint)((((num47 * bgra.G) + (num48 * bgra2.G)) + (num49 * bgra3.G)) + (num50 * bgra4.G)), n);
uint num55 = UInt32Util.FastDivideByUInt16((uint)((((num47 * bgra.R) + (num48 * bgra2.R)) + (num49 * bgra3.R)) + (num50 * bgra4.R)), n);
num16 = ColorBgra.BgraToUInt32((byte)num53, (byte)num54, (byte)num55, (byte)num52);
}
bgraPtr4->Bgra = num16;
num14 += this.srcOffsetDxDxFp;
num15 += this.srcOffsetDyDxFp;
bgraPtr4++;
num17--;
}
while (bgraPtr4 < bgraPtr3)
{
num16 = 0;
int num56 = (int)(num14 >> 0x18);
int num57 = (int)(num15 >> 0x18);
int num58 = ((num56 >= left) && (num56 < right)) ? 1 : 0;
int num59 = ((num57 >= top) && (num57 < bottom)) ? 1 : 0;
int num60 = ((num56 >= (left - 1)) && (num56 < (right - 1))) ? 1 : 0;
int num61 = ((num57 >= (top - 1)) && (num57 < (bottom - 1))) ? 1 : 0;
int num62 = num59 * num58;
int num63 = num59 * num60;
int num64 = num61 * num58;
int num65 = num61 * num60;
if ((((num62 + num63) + num64) + num65) != 0)
{
int num67 = 0x100 - (((int)(num14 & 0xffffffL)) >> 0x10);
int num68 = 0x100 - (((int)(num15 & 0xffffffL)) >> 0x10);
int num69 = (num67 * num68) >> 8;
int num70 = ((0x100 - num67) * num68) >> 8;
int num71 = (num67 * (0x100 - num68)) >> 8;
int num72 = ((0x100 - num67) * (0x100 - num68)) >> 8;
int num73 = num62 * num69;
int num74 = num63 * num70;
int num75 = num64 * num71;
int num76 = num65 * num72;
ushort num77 = (ushort)(((num73 + num74) + num75) + num76);
long num78 = (num57 * contentStride) + (num56 * 4);
ColorBgra32 bgra5 = *((ColorBgra32 *)(bgraPtr + (num78 * num62)));
ColorBgra32 bgra6 = *((ColorBgra32 *)(bgraPtr + ((num78 + 4L) * num63)));
ColorBgra32 bgra7 = *((ColorBgra32 *)(bgraPtr + ((num78 + contentStride) * num64)));
ColorBgra32 bgra8 = *((ColorBgra32 *)(bgraPtr + (((num78 + contentStride) + 4L) * num65)));
int num79 = bgra5.A * num73;
int num80 = bgra6.A * num74;
int num81 = bgra7.A * num75;
int num82 = bgra8.A * num76;
ushort num83 = (ushort)(((num79 + num80) + num81) + num82);
if (num83 != 0)
{
uint num84 = UInt32Util.FastDivideByUInt16(num83, num77);
uint num85 = UInt32Util.FastDivideByUInt16((uint)((((num79 * bgra5.B) + (num80 * bgra6.B)) + (num81 * bgra7.B)) + (num82 * bgra8.B)), num83);
uint num86 = UInt32Util.FastDivideByUInt16((uint)((((num79 * bgra5.G) + (num80 * bgra6.G)) + (num81 * bgra7.G)) + (num82 * bgra8.G)), num83);
uint num87 = UInt32Util.FastDivideByUInt16((uint)((((num79 * bgra5.R) + (num80 * bgra6.R)) + (num81 * bgra7.R)) + (num82 * bgra8.R)), num83);
num16 = ColorBgra.BgraToUInt32((byte)num85, (byte)num86, (byte)num87, (byte)num84);
}
}
bgraPtr4->Bgra = num16;
num14 += this.srcOffsetDxDxFp;
num15 += this.srcOffsetDyDxFp;
bgraPtr4++;
}
num10 += this.srcOffsetDxDyFp;
num11 += this.srcOffsetDyDyFp;
bgraPtr3 += stride;
}
}
private void RenderMask(ISurface <ColorAlpha8> dstMask, PointInt32 renderOffset)
{
int width = dstMask.Width;
int height = dstMask.Height;
bool flag = false;
SizeInt32 size = new SizeInt32(width, height);
RectInt32 rectangle = new RectInt32(renderOffset, size);
if (!flag && this.matrix.HasInverse)
{
Matrix3x2Double inverse = this.matrix.Inverse;
PointDouble pt = inverse.Transform(rectangle.TopLeft);
PointDouble num7 = inverse.Transform(rectangle.TopRight);
PointDouble num8 = inverse.Transform(rectangle.BottomLeft);
PointDouble num9 = inverse.Transform(rectangle.BottomRight);
RectDouble srcCoverageBounds = this.srcCoverageBounds;
if ((srcCoverageBounds.Contains(pt) && srcCoverageBounds.Contains(num7)) && (srcCoverageBounds.Contains(num8) && srcCoverageBounds.Contains(num9)))
{
dstMask.Clear(ColorAlpha8.Opaque);
flag = true;
}
}
if (!flag)
{
GeometryRelation relation;
IDirect2DFactory perThread = Direct2DFactory.PerThread;
using (IRectangleGeometry geometry = perThread.CreateRectangleGeometry(rectangle))
{
base.ThrowIfCancellationRequested();
using (IRectangleGeometry geometry2 = perThread.CreateRectangleGeometry(this.srcCoverageBounds))
{
base.ThrowIfCancellationRequested();
relation = geometry.CompareWithGeometry(geometry2, new Matrix3x2Float?((Matrix3x2Float)this.matrix), null);
base.ThrowIfCancellationRequested();
}
}
switch (relation)
{
case GeometryRelation.IsContained:
dstMask.Clear(ColorAlpha8.Opaque);
flag = true;
break;
case GeometryRelation.Disjoint:
dstMask.Clear(ColorAlpha8.Transparent);
flag = true;
break;
}
}
if (!flag)
{
using (IDrawingContext context = DrawingContext.FromSurface(dstMask, FactorySource.PerThread))
{
base.ThrowIfCancellationRequested();
context.Clear(null);
context.AntialiasMode = AntialiasMode.PerPrimitive;
using (context.UseTranslateTransform((float)-renderOffset.X, (float)-renderOffset.Y, MatrixMultiplyOrder.Prepend))
{
using (context.UseTransformMultiply((Matrix3x2Float)this.matrix, MatrixMultiplyOrder.Prepend))
{
context.FillRectangle(this.srcCoverageBounds, whiteBrush);
}
}
}
}
}
public unsafe void Render(ISurfaceAllocator <ColorAlpha8> allocator, int dstWidth, int dstHeight, PointInt32 renderOffset, ref ISurface <ColorAlpha8> dst, out int?fill255Count)
{
int stride;
if ((allocator == null) && (dst == null))
{
throw new ArgumentException();
}
if (dst != null)
{
dst.Clear(ColorAlpha8.Transparent);
}
int x = renderOffset.X;
int y = renderOffset.Y;
int right = renderOffset.X + dstWidth;
int bottom = renderOffset.Y + dstHeight;
RectInt32 a = RectInt32.FromEdges(x, y, right, bottom);
int count = this.scans.Count;
int scansStartIndex = this.GetScansStartIndex(y, bottom);
Label_006C:
stride = -1;
byte *numPtr = null;
if (dst != null)
{
stride = dst.Stride;
numPtr = (byte *)dst.Scan0;
}
int num9 = 0;
for (int i = scansStartIndex; i < count; i++)
{
RectInt32 scanAt = this.GetScanAt(i);
if (scanAt.Y >= bottom)
{
break;
}
int left = Math.Max(x, scanAt.X);
int top = Math.Max(y, scanAt.Y);
int num14 = Math.Min(right, scanAt.X + scanAt.Width);
int num15 = Math.Min(bottom, scanAt.Y + scanAt.Height);
RectInt32 b = RectInt32.FromEdges(left, top, num14, num15);
if (RectInt32.Intersect(a, b).HasPositiveArea)
{
uint num18 = (uint)(num14 - left);
int num19 = left - renderOffset.X;
int num20 = num14 - renderOffset.X;
if (dst == null)
{
num9 += (int)((num15 - top) * num18);
}
else
{
byte *prgBuffer = numPtr + ((byte *)(((top - renderOffset.Y) * stride) + num19));
for (int j = top; j < num15; j++)
{
Memory.FillMemory(prgBuffer, 0xff, (ulong)num18);
prgBuffer += stride;
}
}
}
}
if (((dst != null) || (num9 == 0)) || (num9 == (dstWidth * dstHeight)))
{
if (dst == null)
{
fill255Count = new int?(num9);
}
else
{
fill255Count = 0;
}
}
else
{
dst = allocator.Allocate(dstWidth, dstHeight, AllocationOptions.Default);
goto Label_006C;
}
}
private RectInt32 GetScanAt(int index) => RectInt32.Offset(this.scans[index], -this.origin.X, -this.origin.Y);
internal MaskFromScansRenderer(TList sortedScans, RectInt32 bounds)
{
this.origin = bounds.Location;
this.size = bounds.Size;
this.scans = sortedScans;
}