protected override void RenderSolidSingleScanLine(IImageByte destImage, IScanlineCache scanLineCache, Color color)
{
int y = scanLineCache.y();
int num_spans = scanLineCache.num_spans();
ScanlineSpan scanlineSpan = scanLineCache.begin();
byte[] ManagedCoversArray = scanLineCache.GetCovers();
for (; ;)
{
int x = scanlineSpan.x;
int num_pix = scanlineSpan.len;
int coverIndex = scanlineSpan.cover_index;
do
{
int a = (ManagedCoversArray[coverIndex++] * color.Alpha0To255) >> 8;
m_square.draw(destImage.NewGraphics2D().Rasterizer, m_sl, destImage,
new Color(color.Red0To255, color.Green0To255, color.Blue0To255, a),
x, y);
++x;
}while (--num_pix > 0);
if (--num_spans == 0)
{
break;
}
scanlineSpan = scanLineCache.GetNextScanlineSpan();
}
}
private void RenderSolidSingleScanLine(IImageFloat destImage, IScanlineCache scanLine, RGBA_Floats color)
{
int y = scanLine.y();
int num_spans = scanLine.num_spans();
ScanlineSpan scanlineSpan = scanLine.begin();
byte[] ManagedCoversArray = scanLine.GetCovers();
for (; ;)
{
int x = scanlineSpan.x;
if (scanlineSpan.len > 0)
{
destImage.blend_solid_hspan(x, y, scanlineSpan.len, color, ManagedCoversArray, scanlineSpan.cover_index);
}
else
{
int x2 = (x - (int)scanlineSpan.len - 1);
destImage.blend_hline(x, y, x2, color, ManagedCoversArray[scanlineSpan.cover_index]);
}
if (--num_spans == 0)
{
break;
}
scanlineSpan = scanLine.GetNextScanlineSpan();
}
}
private void GenerateAndRenderSingleScanline(IScanlineCache scanLineCache, IImageFloat destImageFloat, span_allocator alloc, ISpanGeneratorFloat span_gen)
{
int y = scanLineCache.y();
int num_spans = scanLineCache.num_spans();
ScanlineSpan scanlineSpan = scanLineCache.begin();
byte[] ManagedCoversArray = scanLineCache.GetCovers();
for (; ;)
{
int x = scanlineSpan.x;
int len = scanlineSpan.len;
if (len < 0)
{
len = -len;
}
if (tempSpanColorsFloats.Capacity() < len)
{
tempSpanColorsFloats.Capacity(len);
}
span_gen.generate(tempSpanColorsFloats.Array, 0, x, y, len);
bool useFirstCoverForAll = scanlineSpan.len < 0;
destImageFloat.blend_color_hspan(x, y, len, tempSpanColorsFloats.Array, 0, ManagedCoversArray, scanlineSpan.cover_index, useFirstCoverForAll);
if (--num_spans == 0)
{
break;
}
scanlineSpan = scanLineCache.GetNextScanlineSpan();
}
}
public void RenderCompound(rasterizer_compound_aa ras, IScanlineCache sl_aa, IScanlineCache sl_bin, IImageByte imageFormat, span_allocator alloc, IStyleHandler sh)
{
#if false
unsafe
{
if (ras.rewind_scanlines())
{
int min_x = ras.min_x();
int len = ras.max_x() - min_x + 2;
sl_aa.reset(min_x, ras.max_x());
sl_bin.reset(min_x, ras.max_x());
//typedef typename BaseRenderer::color_type color_type;
ArrayPOD <RGBA_Bytes> color_span = alloc.allocate((int)len * 2);
byte[] ManagedCoversArray = sl_aa.GetCovers();
fixed(byte *pCovers = ManagedCoversArray)
{
fixed(RGBA_Bytes *pColorSpan = color_span.Array)
{
int mix_bufferOffset = len;
int num_spans;
int num_styles;
int style;
bool solid;
while ((num_styles = ras.sweep_styles()) > 0)
{
if (num_styles == 1)
{
// Optimization for a single style. Happens often
//-------------------------
if (ras.sweep_scanline(sl_aa, 0))
{
style = ras.style(0);
if (sh.is_solid(style))
{
// Just solid fill
//-----------------------
RenderSolidSingleScanLine(imageFormat, sl_aa, sh.color(style));
}
else
{
// Arbitrary span generator
//-----------------------
ScanlineSpan span_aa = sl_aa.Begin();
num_spans = sl_aa.num_spans();
for (; ;)
{
len = span_aa.len;
sh.generate_span(pColorSpan,
span_aa.x,
sl_aa.y(),
(int)len,
style);
imageFormat.blend_color_hspan(span_aa.x,
sl_aa.y(),
(int)span_aa.len,
pColorSpan,
&pCovers[span_aa.cover_index], 0);
if (--num_spans == 0)
{
break;
}
span_aa = sl_aa.GetNextScanlineSpan();
}
}
}
}
else // there are multiple styles
{
if (ras.sweep_scanline(sl_bin, -1))
{
// Clear the spans of the mix_buffer
//--------------------
ScanlineSpan span_bin = sl_bin.Begin();
num_spans = sl_bin.num_spans();
for (; ;)
{
agg_basics.MemClear((byte *)&pColorSpan[mix_bufferOffset + span_bin.x - min_x],
span_bin.len * sizeof(RGBA_Bytes));
if (--num_spans == 0)
{
break;
}
span_bin = sl_bin.GetNextScanlineSpan();
}
for (int i = 0; i < num_styles; i++)
{
style = ras.style(i);
solid = sh.is_solid(style);
if (ras.sweep_scanline(sl_aa, (int)i))
{
//IColorType* colors;
//IColorType* cspan;
//typename ScanlineAA::cover_type* covers;
ScanlineSpan span_aa = sl_aa.Begin();
num_spans = sl_aa.num_spans();
if (solid)
{
// Just solid fill
//-----------------------
for (; ;)
{
RGBA_Bytes c = sh.color(style);
len = span_aa.len;
RGBA_Bytes *colors = &pColorSpan[mix_bufferOffset + span_aa.x - min_x];
byte * covers = &pCovers[span_aa.cover_index];
do
{
if (*covers == cover_full)
{
*colors = c;
}
else
{
colors->add(c, *covers);
}
++colors;
++covers;
}while (--len != 0);
if (--num_spans == 0)
{
break;
}
span_aa = sl_aa.GetNextScanlineSpan();
}
}
else
{
// Arbitrary span generator
//-----------------------
for (; ;)
{
len = span_aa.len;
RGBA_Bytes *colors = &pColorSpan[mix_bufferOffset + span_aa.x - min_x];
RGBA_Bytes *cspan = pColorSpan;
sh.generate_span(cspan,
span_aa.x,
sl_aa.y(),
(int)len,
style);
byte *covers = &pCovers[span_aa.cover_index];
do
{
if (*covers == cover_full)
{
*colors = *cspan;
}
else
{
colors->add(*cspan, *covers);
}
++cspan;
++colors;
++covers;
}while (--len != 0);
if (--num_spans == 0)
{
break;
}
span_aa = sl_aa.GetNextScanlineSpan();
}
}
}
}
// Emit the blended result as a color hspan
//-------------------------
span_bin = sl_bin.Begin();
num_spans = sl_bin.num_spans();
for (; ;)
{
imageFormat.blend_color_hspan(span_bin.x,
sl_bin.y(),
(int)span_bin.len,
&pColorSpan[mix_bufferOffset + span_bin.x - min_x],
null,
cover_full);
if (--num_spans == 0)
{
break;
}
span_bin = sl_bin.GetNextScanlineSpan();
}
} // if(ras.sweep_scanline(sl_bin, -1))
} // if(num_styles == 1) ... else
} // while((num_styles = ras.sweep_styles()) > 0)
}
}
} // if(ras.rewind_scanlines())
}
#endif
}
