public static void stbtt_GetBakedQuad(stbtt_bakedchar *chardata, int pw, int ph, int char_index, float *xpos, float *ypos, stbtt_aligned_quad *q, int opengl_fillrule)
{
float d3d_bias = (opengl_fillrule) != 0 ? 0 : -0.5f;
float ipw = 1.0f / pw;
float iph = 1.0f / ph;
stbtt_bakedchar *b = chardata + char_index;
int round_x = ((int)(CRuntime.Floor((*xpos + b->xoff) + 0.5f)));
int round_y = ((int)(CRuntime.Floor((*ypos + b->yoff) + 0.5f)));
q->x0 = round_x + d3d_bias;
q->y0 = round_y + d3d_bias;
q->x1 = round_x + b->x1 - b->x0 + d3d_bias;
q->y1 = round_y + b->y1 - b->y0 + d3d_bias;
q->s0 = b->x0 * ipw;
q->t0 = b->y0 * iph;
q->s1 = b->x1 * ipw;
q->t1 = b->y1 * iph;
*xpos += b->xadvance;
}
public static void stbtt_GetBakedQuad(stbtt_bakedchar *chardata, int pw, int ph, int char_index, float *xpos,
float *ypos, stbtt_aligned_quad *q, int opengl_fillrule)
{
var d3d_bias = opengl_fillrule != 0 ? 0 : -0.5f;
var ipw = 1.0f / pw;
var iph = 1.0f / ph;
var b = chardata + char_index;
var round_x = (int)CRuntime.floor(*xpos + b->xoff + 0.5f);
var round_y = (int)CRuntime.floor(*ypos + b->yoff + 0.5f);
q->x0 = round_x + d3d_bias;
q->y0 = round_y + d3d_bias;
q->x1 = round_x + b->x1 - b->x0 + d3d_bias;
q->y1 = round_y + b->y1 - b->y0 + d3d_bias;
q->s0 = b->x0 * ipw;
q->t0 = b->y0 * iph;
q->s1 = b->x1 * ipw;
q->t1 = b->y1 * iph;
*xpos += b->xadvance;
}
public static int stbtt_BakeFontBitmap_internal(byte *data, int offset, float pixel_height, byte *pixels,
int pw, int ph, int first_char, int num_chars, stbtt_bakedchar *chardata)
{
float scale = 0;
var x = 0;
var y = 0;
var bottom_y = 0;
var i = 0;
var f = new stbtt_fontinfo();
f.userdata = null;
if (stbtt_InitFont(f, data, offset) == 0)
{
return(-1);
}
CRuntime.memset(pixels, 0, (ulong)(pw * ph));
x = y = 1;
bottom_y = 1;
scale = stbtt_ScaleForPixelHeight(f, pixel_height);
for (i = 0; i < num_chars; ++i)
{
var advance = 0;
var lsb = 0;
var x0 = 0;
var y0 = 0;
var x1 = 0;
var y1 = 0;
var gw = 0;
var gh = 0;
var g = stbtt_FindGlyphIndex(f, first_char + i);
stbtt_GetGlyphHMetrics(f, g, &advance, &lsb);
stbtt_GetGlyphBitmapBox(f, g, scale, scale, &x0, &y0, &x1, &y1);
gw = x1 - x0;
gh = y1 - y0;
if (x + gw + 1 >= pw)
{
y = bottom_y;
x = 1;
}
if (y + gh + 1 >= ph)
{
return(-i);
}
stbtt_MakeGlyphBitmap(f, pixels + x + y * pw, gw, gh, pw, scale, scale, g);
chardata[i].x0 = (ushort)(short)x;
chardata[i].y0 = (ushort)(short)y;
chardata[i].x1 = (ushort)(short)(x + gw);
chardata[i].y1 = (ushort)(short)(y + gh);
chardata[i].xadvance = scale * advance;
chardata[i].xoff = x0;
chardata[i].yoff = y0;
x = x + gw + 1;
if (y + gh + 1 > bottom_y)
{
bottom_y = y + gh + 1;
}
}
return(bottom_y);
}
public static int stbtt_BakeFontBitmap(byte *data, int offset, float pixel_height, byte *pixels, int pw, int ph,
int first_char, int num_chars, stbtt_bakedchar *chardata)
{
return(stbtt_BakeFontBitmap_internal(data, offset, pixel_height, pixels, pw, ph, first_char, num_chars,
chardata));
}
public static int stbtt_BakeFontBitmap_internal(byte *data, int offset, float pixel_height, byte *pixels, int pw, int ph, int first_char, int num_chars, stbtt_bakedchar *chardata)
{
float scale = 0;
int x = 0;
int y = 0;
int bottom_y = 0;
int i = 0;
stbtt_fontinfo f = new stbtt_fontinfo();
f.userdata = (null);
if (stbtt_InitFont(f, data, (int)(offset)) == 0)
{
return((int)(-1));
}
CRuntime.memset(pixels, (int)(0), (ulong)(pw * ph));
x = (int)(y = (int)(1));
bottom_y = (int)(1);
scale = (float)(stbtt_ScaleForPixelHeight(f, (float)(pixel_height)));
for (i = (int)(0); (i) < (num_chars); ++i)
{
int advance = 0;
int lsb = 0;
int x0 = 0;
int y0 = 0;
int x1 = 0;
int y1 = 0;
int gw = 0;
int gh = 0;
int g = (int)(stbtt_FindGlyphIndex(f, (int)(first_char + i)));
stbtt_GetGlyphHMetrics(f, (int)(g), &advance, &lsb);
stbtt_GetGlyphBitmapBox(f, (int)(g), (float)(scale), (float)(scale), &x0, &y0, &x1, &y1);
gw = (int)(x1 - x0);
gh = (int)(y1 - y0);
if ((x + gw + 1) >= (pw))
{
y = (int)(bottom_y);
x = (int)(1);
}
if ((y + gh + 1) >= (ph))
{
return((int)(-i));
}
stbtt_MakeGlyphBitmap(f, pixels + x + y * pw, (int)(gw), (int)(gh), (int)(pw), (float)(scale), (float)(scale), (int)(g));
chardata[i].x0 = (ushort)((short)(x));
chardata[i].y0 = (ushort)((short)(y));
chardata[i].x1 = (ushort)((short)(x + gw));
chardata[i].y1 = (ushort)((short)(y + gh));
chardata[i].xadvance = (float)(scale * advance);
chardata[i].xoff = ((float)(x0));
chardata[i].yoff = ((float)(y0));
x = (int)(x + gw + 1);
if ((y + gh + 1) > (bottom_y))
{
bottom_y = (int)(y + gh + 1);
}
}
return((int)(bottom_y));
}
public static int stbtt_BakeFontBitmap(byte *data, int offset, float pixel_height, byte *pixels, int pw, int ph, int first_char, int num_chars, stbtt_bakedchar *chardata)
{
return((int)(stbtt_BakeFontBitmap_internal(data, (int)(offset), (float)(pixel_height), pixels, (int)(pw), (int)(ph), (int)(first_char), (int)(num_chars), chardata)));
}
