void master_alpha(int style, double alpha)
{
if (style >= 0)
{
while ((int)m_master_alpha.size() <= style)
{
m_master_alpha.add(aa_mask);
}
m_master_alpha.Array[style] = agg_basics.uround(alpha * aa_mask);
}
}
public void rotate_colors()
{
int i;
for (i = 1; i < m_vertices.size(); i++)
{
RGBA_Bytes c = m_vertices[i].color;
RGBA_Bytes dc = m_vertices[i].dc;
int r = (int)c.Red0To255 + (dc.Red0To255 != 0 ? 5 : -5);
int g = (int)c.Green0To255 + (dc.Green0To255 != 0 ? 5 : -5);
int b = (int)c.Blue0To255 + (dc.Blue0To255 != 0 ? 5 : -5);
if (r < 0)
{
r = 0; dc.Red0To255 ^= 1;
}
if (r > 255)
{
r = 255; dc.Red0To255 ^= 1;
}
if (g < 0)
{
g = 0; dc.Green0To255 ^= 1;
}
if (g > 255)
{
g = 255; dc.Green0To255 ^= 1;
}
if (b < 0)
{
b = 0; dc.Blue0To255 ^= 1;
}
if (b > 255)
{
b = 255; dc.Blue0To255 ^= 1;
}
c.Red0To255 = (int)r;
c.Green0To255 = (int)g;
c.Blue0To255 = (int)b;
}
}
// Returns the number of styles
public int sweep_styles()
{
for (;;)
{
if (m_scan_y > m_Rasterizer.max_y())
{
return(0);
}
int num_cells = (int)m_Rasterizer.scanline_num_cells(m_scan_y);
cell_aa[] cells;
int cellOffset = 0;
int curCellOffset;
m_Rasterizer.scanline_cells(m_scan_y, out cells, out cellOffset);
int num_styles = (int)(m_max_style - m_min_style + 2);
int style_id;
int styleOffset = 0;
m_cells.Allocate((int)num_cells * 2, 256); // Each cell can have two styles
m_ast.Capacity(num_styles, 64);
m_asm.Allocate((num_styles + 7) >> 3, 8);
m_asm.zero();
if (num_cells > 0)
{
// Pre-add zero (for no-fill style, that is, -1).
// We need that to ensure that the "-1 style" would go first.
m_asm.Array[0] |= 1;
m_ast.add(0);
m_styles.Array[styleOffset].start_cell = 0;
m_styles.Array[styleOffset].num_cells = 0;
m_styles.Array[styleOffset].last_x = -0x7FFFFFFF;
m_sl_start = cells[0].x;
m_sl_len = (int)(cells[num_cells - 1].x - m_sl_start + 1);
while (num_cells-- != 0)
{
curCellOffset = (int)cellOffset++;
add_style(cells[curCellOffset].left);
add_style(cells[curCellOffset].right);
}
// Convert the Y-histogram into the array of starting indexes
int i;
int start_cell = 0;
style_info[] stylesArray = m_styles.Array;
for (i = 0; i < m_ast.size(); i++)
{
int IndexToModify = (int)m_ast[i];
int v = stylesArray[IndexToModify].start_cell;
stylesArray[IndexToModify].start_cell = start_cell;
start_cell += v;
}
num_cells = (int)m_Rasterizer.scanline_num_cells(m_scan_y);
m_Rasterizer.scanline_cells(m_scan_y, out cells, out cellOffset);
while (num_cells-- > 0)
{
curCellOffset = (int)cellOffset++;
style_id = (int)((cells[curCellOffset].left < 0) ? 0 :
cells[curCellOffset].left - m_min_style + 1);
styleOffset = (int)style_id;
if (cells[curCellOffset].x == stylesArray[styleOffset].last_x)
{
cellOffset = stylesArray[styleOffset].start_cell + stylesArray[styleOffset].num_cells - 1;
unchecked
{
cells[cellOffset].area += cells[curCellOffset].area;
cells[cellOffset].cover += cells[curCellOffset].cover;
}
}
else
{
cellOffset = stylesArray[styleOffset].start_cell + stylesArray[styleOffset].num_cells;
cells[cellOffset].x = cells[curCellOffset].x;
cells[cellOffset].area = cells[curCellOffset].area;
cells[cellOffset].cover = cells[curCellOffset].cover;
stylesArray[styleOffset].last_x = cells[curCellOffset].x;
stylesArray[styleOffset].num_cells++;
}
style_id = (int)((cells[curCellOffset].right < 0) ? 0 :
cells[curCellOffset].right - m_min_style + 1);
styleOffset = (int)style_id;
if (cells[curCellOffset].x == stylesArray[styleOffset].last_x)
{
cellOffset = stylesArray[styleOffset].start_cell + stylesArray[styleOffset].num_cells - 1;
unchecked
{
cells[cellOffset].area -= cells[curCellOffset].area;
cells[cellOffset].cover -= cells[curCellOffset].cover;
}
}
else
{
cellOffset = stylesArray[styleOffset].start_cell + stylesArray[styleOffset].num_cells;
cells[cellOffset].x = cells[curCellOffset].x;
cells[cellOffset].area = -cells[curCellOffset].area;
cells[cellOffset].cover = -cells[curCellOffset].cover;
stylesArray[styleOffset].last_x = cells[curCellOffset].x;
stylesArray[styleOffset].num_cells++;
}
}
}
if (m_ast.size() > 1)
{
break;
}
++m_scan_y;
}
++m_scan_y;
if (m_layer_order != layer_order_e.layer_unsorted)
{
VectorPOD_RangeAdaptor ra = new VectorPOD_RangeAdaptor(m_ast, 1, m_ast.size() - 1);
if (m_layer_order == layer_order_e.layer_direct)
{
QuickSort_range_adaptor_uint m_QSorter = new QuickSort_range_adaptor_uint();
m_QSorter.Sort(ra);
//quick_sort(ra, uint_greater);
}
else
{
throw new System.NotImplementedException();
//QuickSort_range_adaptor_uint m_QSorter = new QuickSort_range_adaptor_uint();
//m_QSorter.Sort(ra);
//quick_sort(ra, uint_less);
}
}
return(m_ast.size() - 1);
}
public int num_edges()
{
return(m_edges.size());
}
public int num_triangles()
{
return(m_triangles.size());
}
public void sort_cells()
{
if (m_sorted)
{
return; //Perform sort only the first time.
}
add_curr_cell();
m_curr_cell.x = 0x7FFFFFFF;
m_curr_cell.y = 0x7FFFFFFF;
m_curr_cell.cover = 0;
m_curr_cell.area = 0;
if (m_num_used_cells == 0)
{
return;
}
// Allocate the array of cell pointers
m_sorted_cells.Allocate(m_num_used_cells);
// Allocate and zero the Y array
m_sorted_y.Allocate((int)(m_max_y - m_min_y + 1));
m_sorted_y.zero();
cell_aa[] cells = m_cells.Array;
sorted_y[] sortedYData = m_sorted_y.Array;
cell_aa[] sortedCellsData = m_sorted_cells.Array;
// Create the Y-histogram (count the numbers of cells for each Y)
for (int i = 0; i < m_num_used_cells; i++)
{
int Index = cells[i].y - m_min_y;
sortedYData[Index].start++;
}
// Convert the Y-histogram into the array of starting indexes
int start = 0;
int SortedYSize = m_sorted_y.size();
for (int i = 0; i < SortedYSize; i++)
{
int v = sortedYData[i].start;
sortedYData[i].start = start;
start += v;
}
// Fill the cell pointer array sorted by Y
for (int i = 0; i < m_num_used_cells; i++)
{
int SortedIndex = cells[i].y - m_min_y;
int curr_y_start = sortedYData[SortedIndex].start;
int curr_y_num = sortedYData[SortedIndex].num;
sortedCellsData[curr_y_start + curr_y_num] = cells[i];
++sortedYData[SortedIndex].num;
}
// Finally arrange the X-arrays
for (int i = 0; i < SortedYSize; i++)
{
if (sortedYData[i].num != 0)
{
m_QSorter.Sort(sortedCellsData, sortedYData[i].start, sortedYData[i].start + sortedYData[i].num - 1);
}
}
m_sorted = true;
}