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#include "mupdf/fitz.h"
#include "mupdf/pdf.h"
#include <stdlib.h>
void
pdf_set_font_wmode(fz_context *ctx, pdf_font_desc *font, int wmode)
{
font->wmode = wmode;
}
void
pdf_set_default_hmtx(fz_context *ctx, pdf_font_desc *font, int w)
{
font->dhmtx.w = w;
}
void
pdf_set_default_vmtx(fz_context *ctx, pdf_font_desc *font, int y, int w)
{
font->dvmtx.y = y;
font->dvmtx.w = w;
}
void
pdf_add_hmtx(fz_context *ctx, pdf_font_desc *font, int lo, int hi, int w)
{
if (font->hmtx_len + 1 >= font->hmtx_cap)
{
int new_cap = font->hmtx_cap + 16;
font->hmtx = fz_resize_array(ctx, font->hmtx, new_cap, sizeof(pdf_hmtx));
font->hmtx_cap = new_cap;
}
font->hmtx[font->hmtx_len].lo = lo;
font->hmtx[font->hmtx_len].hi = hi;
font->hmtx[font->hmtx_len].w = w;
font->hmtx_len++;
}
void
pdf_add_vmtx(fz_context *ctx, pdf_font_desc *font, int lo, int hi, int x, int y, int w)
{
if (font->vmtx_len + 1 >= font->vmtx_cap)
{
int new_cap = font->vmtx_cap + 16;
font->vmtx = fz_resize_array(ctx, font->vmtx, new_cap, sizeof(pdf_vmtx));
font->vmtx_cap = new_cap;
}
font->vmtx[font->vmtx_len].lo = lo;
font->vmtx[font->vmtx_len].hi = hi;
font->vmtx[font->vmtx_len].x = x;
font->vmtx[font->vmtx_len].y = y;
font->vmtx[font->vmtx_len].w = w;
font->vmtx_len++;
}
static int cmph(const void *a0, const void *b0)
{
pdf_hmtx *a = (pdf_hmtx*)a0;
pdf_hmtx *b = (pdf_hmtx*)b0;
return a->lo - b->lo;
}
static int cmpv(const void *a0, const void *b0)
{
pdf_vmtx *a = (pdf_vmtx*)a0;
pdf_vmtx *b = (pdf_vmtx*)b0;
return a->lo - b->lo;
}
void
pdf_end_hmtx(fz_context *ctx, pdf_font_desc *font)
{
if (!font->hmtx)
return;
qsort(font->hmtx, font->hmtx_len, sizeof(pdf_hmtx), cmph);
font->size += font->hmtx_cap * sizeof(pdf_hmtx);
}
void
pdf_end_vmtx(fz_context *ctx, pdf_font_desc *font)
{
if (!font->vmtx)
return;
qsort(font->vmtx, font->vmtx_len, sizeof(pdf_vmtx), cmpv);
font->size += font->vmtx_cap * sizeof(pdf_vmtx);
}
pdf_hmtx
pdf_lookup_hmtx(fz_context *ctx, pdf_font_desc *font, int cid)
{
int l = 0;
int r = font->hmtx_len - 1;
int m;
if (!font->hmtx)
goto notfound;
while (l <= r)
{
m = (l + r) >> 1;
if (cid < font->hmtx[m].lo)
r = m - 1;
else if (cid > font->hmtx[m].hi)
l = m + 1;
else
return font->hmtx[m];
}
notfound:
return font->dhmtx;
}
pdf_vmtx
pdf_lookup_vmtx(fz_context *ctx, pdf_font_desc *font, int cid)
{
pdf_hmtx h;
pdf_vmtx v;
int l = 0;
int r = font->vmtx_len - 1;
int m;
if (!font->vmtx)
goto notfound;
while (l <= r)
{
m = (l + r) >> 1;
if (cid < font->vmtx[m].lo)
r = m - 1;
else if (cid > font->vmtx[m].hi)
l = m + 1;
else
return font->vmtx[m];
}
notfound:
h = pdf_lookup_hmtx(ctx, font, cid);
v = font->dvmtx;
v.x = h.w / 2;
return v;
}
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