private unsafe void OnRenderImpl <TMaskSampler>(ISurface <ColorBgra> dstContent, PointInt32 renderOffset, ref TMaskSampler baseMaskSampler) where TMaskSampler : IMaskSampler
{
if (Interlocked.Exchange(ref this.isLazyDeltaSelectionMaskFirstTimePrefetched, 1) == 0)
{
this.lazyDeltaSelectionMask.EnsureEvaluated();
}
else if (Interlocked.Exchange(ref this.isLazyFinalSelectionMaskFirstTimePrefetched, 1) == 0)
{
this.lazyFinalSelectionMask.EnsureEvaluated();
}
base.ThrowIfCancellationRequested();
int width = dstContent.Width;
int height = dstContent.Height;
ColorBgra *bgraPtr = (ColorBgra *)dstContent.Scan0;
int stride = dstContent.Stride;
int num4 = stride - (width * 4);
RectInt32 bounds = new RectInt32(renderOffset.X, renderOffset.Y, width, height);
uint num6 = this.changes.BackFillColor.Bgra;
using (ISurface <ColorAlpha8> surface = alpha8Allocator.Allocate(width, height, AllocationOptions.ZeroFillNotRequired))
{
base.ThrowIfCancellationRequested();
this.sourceTx.Render(dstContent, surface, renderOffset);
base.ThrowIfCancellationRequested();
using (ISurface <ColorAlpha8> surface2 = this.lazyFinalSelectionMask.Value.UseTileOrToSurface(bounds))
{
base.ThrowIfCancellationRequested();
ColorBgra *pointAddress = this.activeLayer.Surface.GetPointAddress(renderOffset.X, renderOffset.Y);
int num7 = this.activeLayer.Surface.Stride - (width * 4);
byte * numPtr = (byte *)surface2.Scan0;
int num8 = surface2.Stride - bounds.Width;
byte * numPtr2 = (byte *)surface.Scan0;
int num9 = surface.Stride - bounds.Width;
ColorBgra *bgraPtr3 = bgraPtr + width;
baseMaskSampler.Initialize();
for (int i = 0; i < height; i++)
{
for (ColorBgra *bgraPtr4 = bgraPtr3 - width; bgraPtr4 < bgraPtr3; bgraPtr4++)
{
byte next = baseMaskSampler.GetNext();
byte num12 = numPtr[0];
byte num13 = numPtr2[0];
byte num14 = Math.Min(num13, num12);
if (num14 == 0)
{
byte frac = (byte)(0xff - next);
if (frac == 0)
{
bgraPtr4->Bgra = num6;
}
else
{
ColorBgra bgra = pointAddress[0];
if (frac != 0xff)
{
bgra.A = ByteUtil.FastScale(bgra.A, frac);
}
bgraPtr4->Bgra = bgra.Bgra;
}
}
else if (num14 != 0xff)
{
byte num16 = Math.Min((byte)(0xff - num14), (byte)(0xff - next));
ColorBgra bgra2 = bgraPtr4[0];
ColorBgra bgra3 = pointAddress[0];
ushort d = (ushort)((bgra3.A * num16) + (bgra2.A * num14));
if (d == 0)
{
bgraPtr4->Bgra = num6;
}
else
{
int num18 = UInt16Util.FastDivideBy255((ushort)((bgra3.A * num16) + (bgra2.A * num14)));
uint num19 = UInt32Util.FastDivideByUInt16((uint)(((bgra3.A * num16) * bgra3.B) + ((bgra2.A * num14) * bgra2.B)), d);
uint num20 = UInt32Util.FastDivideByUInt16((uint)(((bgra3.A * num16) * bgra3.G) + ((bgra2.A * num14) * bgra2.G)), d);
uint num21 = UInt32Util.FastDivideByUInt16((uint)(((bgra3.A * num16) * bgra3.R) + ((bgra2.A * num14) * bgra2.R)), d);
bgraPtr4->Bgra = ColorBgra.BgraToUInt32((byte)num19, (byte)num20, (byte)num21, (byte)num18);
}
}
pointAddress++;
numPtr++;
numPtr2++;
}
pointAddress += num7;
baseMaskSampler.MoveToNextRow();
numPtr += num8;
numPtr2 += num9;
bgraPtr3 += stride;
base.ThrowIfCancellationRequested();
}
}
}
}
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;
}
}
