public static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample,
int off_x, int off_y, void *userdata)
{
var hh = new stbtt__hheap();
stbtt__active_edge *active = null;
var y = 0;
var j = 0;
var i = 0;
var scanline_data = stackalloc float[129];
float *scanline;
float *scanline2;
if (result->w > 64)
{
scanline = (float *)CRuntime.malloc((ulong)((result->w * 2 + 1) * sizeof(float)));
}
else
{
scanline = scanline_data;
}
scanline2 = scanline + result->w;
y = off_y;
e[n].y0 = (float)(off_y + result->h) + 1;
while (j < result->h)
{
var scan_y_top = y + 0.0f;
var scan_y_bottom = y + 1.0f;
var step = &active;
CRuntime.memset(scanline, 0, (ulong)(result->w * sizeof(float)));
CRuntime.memset(scanline2, 0, (ulong)((result->w + 1) * sizeof(float)));
while (*step != null)
{
var z = *step;
if (z->ey <= scan_y_top)
{
*step = z->next;
z->direction = 0;
stbtt__hheap_free(&hh, z);
}
else
{
step = &(*step)->next;
}
}
while (e->y0 <= scan_y_bottom)
{
if (e->y0 != e->y1)
{
var z = stbtt__new_active(&hh, e, off_x, scan_y_top, userdata);
if (z != null)
{
if (j == 0 && off_y != 0)
{
if (z->ey < scan_y_top)
{
z->ey = scan_y_top;
}
}
z->next = active;
active = z;
}
}
++e;
}
if (active != null)
{
stbtt__fill_active_edges_new(scanline, scanline2 + 1, result->w, active, scan_y_top);
}
{
float sum = 0;
for (i = 0; i < result->w; ++i)
{
float k = 0;
var m = 0;
sum += scanline2[i];
k = scanline[i] + sum;
k = CRuntime.fabs(k) * 255 + 0.5f;
m = (int)k;
if (m > 255)
{
m = 255;
}
result->pixels[j * result->stride + i] = (byte)m;
}
}
step = &active;
while (*step != null)
{
var z = *step;
z->fx += z->fdx;
step = &(*step)->next;
}
++y;
++j;
}
stbtt__hheap_cleanup(&hh, userdata);
if (scanline != scanline_data)
{
CRuntime.free(scanline);
}
}
public static void stbtt__rasterize_sorted_edges(stbtt__bitmap *result, stbtt__edge *e, int n, int vsubsample, int off_x, int off_y, void *userdata)
{
stbtt__hheap hh = new stbtt__hheap();
stbtt__active_edge *active = (null);
int y = 0;
int j = (int)(0);
int i = 0;
float *scanline_data = stackalloc float[129];
float *scanline;
float *scanline2;
if ((result->w) > (64))
{
scanline = (float *)(CRuntime.malloc((ulong)((result->w * 2 + 1) * sizeof(float))));
}
else
{
scanline = scanline_data;
}
scanline2 = scanline + result->w;
y = (int)(off_y);
e[n].y0 = (float)((float)(off_y + result->h) + 1);
while ((j) < (result->h))
{
float scan_y_top = (float)(y + 0.0f);
float scan_y_bottom = (float)(y + 1.0f);
stbtt__active_edge **step = &active;
CRuntime.memset(scanline, (int)(0), (ulong)(result->w * sizeof(float)));
CRuntime.memset(scanline2, (int)(0), (ulong)((result->w + 1) * sizeof(float)));
while ((*step) != null)
{
stbtt__active_edge *z = *step;
if (z->ey <= scan_y_top)
{
*step = z->next;
z->direction = (float)(0);
stbtt__hheap_free(&hh, z);
}
else
{
step = &((*step)->next);
}
}
while (e->y0 <= scan_y_bottom)
{
if (e->y0 != e->y1)
{
stbtt__active_edge *z = stbtt__new_active(&hh, e, (int)(off_x), (float)(scan_y_top), userdata);
if (z != (null))
{
if (((j) == (0)) && (off_y != 0))
{
if ((z->ey) < (scan_y_top))
{
z->ey = (float)(scan_y_top);
}
}
z->next = active;
active = z;
}
}
++e;
}
if ((active) != null)
{
stbtt__fill_active_edges_new(scanline, scanline2 + 1, (int)(result->w), active, (float)(scan_y_top));
}
{
float sum = (float)(0);
for (i = (int)(0); (i) < (result->w); ++i)
{
float k = 0;
int m = 0;
sum += (float)(scanline2[i]);
k = (float)(scanline[i] + sum);
k = (float)((float)(CRuntime.fabs((double)(k))) * 255 + 0.5f);
m = ((int)(k));
if ((m) > (255))
{
m = (int)(255);
}
result->pixels[j * result->stride + i] = ((byte)(m));
}
}
step = &active;
while ((*step) != null)
{
stbtt__active_edge *z = *step;
z->fx += (float)(z->fdx);
step = &((*step)->next);
}
++y;
++j;
}
stbtt__hheap_cleanup(&hh, userdata);
if (scanline != scanline_data)
{
CRuntime.free(scanline);
}
}