public unsafe void BlendVerticalColorSpan(int x, int y, uint len, RGBA_Bytes *colors, byte *covers, byte cover)
{
byte *p = _rasterBuffer.GetPixelPointer(y) + x + x + x;
int scanWidth = _rasterBuffer.StrideInBytes();
if (covers != null)
{
do
{
CopyOrBlendBGRWrapper.CopyOrBlendPixel(_blender, p, colors->m_R, colors->m_G, colors->m_B, colors->m_A, *covers++);
p = &p[scanWidth];
++colors;
}while (--len != 0);
}
else
{
if (cover == 255)
{
do
{
CopyOrBlendBGRWrapper.CopyOrBlendPixel(_blender, p, colors->R_Byte, colors->G_Byte, colors->B_Byte, colors->A_Byte); p = &p[scanWidth];
++colors;
}while (--len != 0);
}
else
{
do
{
CopyOrBlendBGRWrapper.CopyOrBlendPixel(_blender, p, colors->R_Byte, colors->G_Byte, colors->B_Byte, colors->A_Byte, cover);
p = &p[scanWidth];
++colors;
}while (--len != 0);
}
}
}
//--------------------------------------------------------------------
unsafe public void BlendHorizontalColorSpan(int x, int y, uint len, RGBA_Bytes *colors, byte *covers, byte cover)
{
byte *p = _rasterBuffer.GetPixelPointer(y) + x + x + x;
if (covers != null)
{
do
{
CopyOrBlendBGRWrapper.CopyOrBlendPixel(_blender, p,
colors->m_R,
colors->m_G,
colors->m_B,
colors->m_A,
*covers++);
p += 3;
++colors;
}while (--len != 0);
}
else
{
if (cover == 255)
{
do
{
CopyOrBlendBGRWrapper.CopyOrBlendPixel(_blender, p,
colors->R_Byte,
colors->G_Byte,
colors->B_Byte,
colors->A_Byte);
p += 3;
++colors;
}while (--len != 0);
}
else
{
do
{
CopyOrBlendBGRWrapper.CopyOrBlendPixel(_blender, p,
colors->R_Byte,
colors->G_Byte,
colors->B_Byte,
colors->A_Byte,
cover);
p += 3;
++colors;
}while (--len != 0);
}
}
}
