private static unsafe void RenderWithClipMask(Effect effect, EffectConfigToken token, RenderArgs dstArgs, RenderArgs srcArgs, Rectangle[] rois, IRenderer <ColorAlpha8> clipMaskRenderer)
{
effect.Render(token, dstArgs, srcArgs, rois);
if (!effect.IsCancelRequested && (clipMaskRenderer != null))
{
RectInt32 bounds = RectangleUtil.Bounds(rois).ToRectInt32();
if (bounds.HasPositiveArea)
{
using (ISurface <ColorAlpha8> surface = clipMaskRenderer.UseTileOrToSurface(bounds))
{
int width = bounds.Width;
int height = bounds.Height;
int left = bounds.Left;
int top = bounds.Top;
int bottom = bounds.Bottom;
int stride = dstArgs.Surface.Stride;
int num8 = srcArgs.Surface.Stride;
int num9 = surface.Stride;
ColorBgra *pointAddress = dstArgs.Surface.GetPointAddress(left, top);
ColorBgra *bgraPtr2 = srcArgs.Surface.GetPointAddress(left, top);
byte * numPtr = (byte *)surface.Scan0;
for (int i = height; i > 0; i--)
{
ColorBgra.Underwrite(bgraPtr2, pointAddress, numPtr, width);
pointAddress += stride;
bgraPtr2 += num8;
numPtr += num9;
}
}
}
}
}
private static unsafe void RenderWithClipMask(
Effect effect,
EffectConfigToken token,
RenderArgs dstArgs,
RenderArgs srcArgs,
Rectangle[] rois,
IRenderer <ColorAlpha8> clipMaskRenderer)
{
// Render the effect
effect.Render(token, dstArgs, srcArgs, rois);
if (effect.IsCancelRequested)
{
return;
}
if (clipMaskRenderer != null)
{
RectInt32 bounds = RectangleUtil.Bounds(rois).ToRectInt32();
if (bounds.HasPositiveArea)
{
// dstArgs = (srcArgs * (1 - clipMask)) + (dstArgs * clipMask)
// TODO: optimize, or at least refactor into its own method
using (ISurface <ColorAlpha8> clipMask = clipMaskRenderer.UseTileOrToSurface(bounds))
{
int width = bounds.Width;
int height = bounds.Height;
int left = bounds.Left;
int top = bounds.Top;
int bottom = bounds.Bottom;
int dstStride = dstArgs.Surface.Stride;
int srcStride = srcArgs.Surface.Stride;
int clipMaskStride = clipMask.Stride;
ColorBgra *dstNextRowPtr = dstArgs.Surface.GetPointAddress(left, top);
ColorBgra *srcNextRowPtr = srcArgs.Surface.GetPointAddress(left, top);
byte * clipMaskNextRowPtr = (byte *)clipMask.Scan0;
int rows = height;
while (rows > 0)
{
ColorBgra.Underwrite(srcNextRowPtr, dstNextRowPtr, clipMaskNextRowPtr, width);
dstNextRowPtr = (ColorBgra *)((byte *)dstNextRowPtr + dstStride);
srcNextRowPtr = (ColorBgra *)((byte *)srcNextRowPtr + srcStride);
clipMaskNextRowPtr = clipMaskNextRowPtr + clipMaskStride;
--rows;
}
}
}
}
}