diff options
Diffstat (limited to 'tex/context/base/mkiv/font-ttf.lua')
| -rw-r--r-- | tex/context/base/mkiv/font-ttf.lua | 235 |
1 files changed, 134 insertions, 101 deletions
diff --git a/tex/context/base/mkiv/font-ttf.lua b/tex/context/base/mkiv/font-ttf.lua index a2658d595..d1a3972b2 100644 --- a/tex/context/base/mkiv/font-ttf.lua +++ b/tex/context/base/mkiv/font-ttf.lua @@ -247,115 +247,148 @@ local function applyaxis(glyph,shape,deltas,dowidth) -- Not the most efficient solution but we seldom do this. We -- actually need to avoid the extra points here but I'll deal -- with that when needed. - local function find(i) - local prv = cnt - for j=1,cnt do - local nxt = dpoints[j] - if nxt == i then - return false, j, false - elseif nxt > i then - return prv, false, j - end - prv = j - end - return prv, false, 1 - end - -- We need the first and last points untouched so we first - -- collect data. - for i=1,nofpoints do - local d1, d2, d3 = find(i) - local p2 = points[i] - if d2 then - xv[i] = xvalues[d2] - yv[i] = yvalues[d2] - else - local n1 = dpoints[d1] - local n3 = dpoints[d3] - -- Some day I need to figure out these extra points but - -- I'll wait till the standard is more clear and fonts - -- become better (ntg-context: fraunces.ttf > abcdef). - if n1 > nofpoints then - n1 = nofpoints - end - if n3 > nofpoints then - n3 = nofpoints - end - -- - local p1 = points[n1] - local p3 = points[n3] - local p1x = p1[1] - local p2x = p2[1] - local p3x = p3[1] - local p1y = p1[2] - local p2y = p2[2] - local p3y = p3[2] - local x1 = xvalues[d1] - local y1 = yvalues[d1] - local x3 = xvalues[d3] - local y3 = yvalues[d3] - -- - local fx - local fy - -- - if p1x == p3x then - if x1 == x3 then - fx = x1 - else - fx = 0 - end - elseif p2x <= min(p1x,p3x) then - if p1x < p3x then - fx = x1 - else - fx = x3 - end - elseif p2x >= max(p1x,p3x) then - if p1x > p3x then - fx = x1 - else - fx = x3 + local contours = shape.contours + local nofcontours = #contours + local first = 1 + local firstindex = 1 + for contour=1,nofcontours do + local last = contours[contour] + if last >= first then + local lastindex = cnt + if firstindex < cnt then + for currentindex=firstindex,cnt do + local found = dpoints[currentindex] + if found <= first then + firstindex = currentindex + end + if found == last then + lastindex = currentindex + break; + elseif found > last then + break + end end - else - fx = (p2x - p1x)/(p3x - p1x) - fx = (1 - fx) * x1 + fx * x3 end - -- - if p1y == p3y then - if y1 == y3 then - fy = y1 - else - fy = 0 - end - elseif p2y <= min(p1y,p3y) then - if p1y < p3y then - fy = y1 - else - fy = y3 + -- print("unicode: ",glyph.unicode or "?") + -- print("contour: ",first,contour,last) + -- print("index : ",firstindex,lastindex,cnt) + -- print("points : ",dpoints[firstindex],dpoints[lastindex]) + local function find(i) + local prv = lastindex + for j=firstindex,lastindex do + local nxt = dpoints[j] + if nxt == i then + return false, j, false + elseif nxt > i then + return prv, false, j + end + prv = j end - elseif p2y >= max(p1y,p3y) then - if p1y > p3y then - fy = y1 + return prv, false, firstindex + end + -- We need the first and last points untouched so we first + -- collect data. + for point=first,last do + local d1, d2, d3 = find(point) + local p2 = points[point] + if d2 then + xv[point] = xvalues[d2] + yv[point] = yvalues[d2] else - fy = y3 + local n1 = dpoints[d1] + local n3 = dpoints[d3] + -- Some day I need to figure out these extra points but + -- I'll wait till the standard is more clear and fonts + -- become better (ntg-context: fraunces.ttf > abcdef). + if n1 > nofpoints then + n1 = nofpoints + end + if n3 > nofpoints then + n3 = nofpoints + end + -- + local p1 = points[n1] + local p3 = points[n3] + local p1x = p1[1] + local p2x = p2[1] + local p3x = p3[1] + local p1y = p1[2] + local p2y = p2[2] + local p3y = p3[2] + local x1 = xvalues[d1] + local y1 = yvalues[d1] + local x3 = xvalues[d3] + local y3 = yvalues[d3] + -- + local fx + local fy + -- + if p1x == p3x then + if x1 == x3 then + fx = x1 + else + fx = 0 + end + elseif p2x <= min(p1x,p3x) then + if p1x < p3x then + fx = x1 + else + fx = x3 + end + elseif p2x >= max(p1x,p3x) then + if p1x > p3x then + fx = x1 + else + fx = x3 + end + else + fx = (p2x - p1x)/(p3x - p1x) + fx = (1 - fx) * x1 + fx * x3 + end + -- + if p1y == p3y then + if y1 == y3 then + fy = y1 + else + fy = 0 + end + elseif p2y <= min(p1y,p3y) then + if p1y < p3y then + fy = y1 + else + fy = y3 + end + elseif p2y >= max(p1y,p3y) then + if p1y > p3y then + fy = y1 + else + fy = y3 + end + else + fy = (p2y - p1y)/(p3y - p1y) + fy = (1 - fy) * y1 + fy * y3 + end + -- -- maybe: + -- if p1y ~= p3y then + -- fy = (p2y - p1y)/(p3y - p1y) + -- fy = (1 - fy) * y1 + fy * y3 + -- elseif abs(p1y-p2y) < abs(p3y-p2y) then + -- fy = y1 + -- else + -- fy = y3 + -- end + -- + xv[point] = fx + yv[point] = fy end - else - fy = (p2y - p1y)/(p3y - p1y) - fy = (1 - fy) * y1 + fy * y3 end - -- -- maybe: - -- if p1y ~= p3y then - -- fy = (p2y - p1y)/(p3y - p1y) - -- fy = (1 - fy) * y1 + fy * y3 - -- elseif abs(p1y-p2y) < abs(p3y-p2y) then - -- fy = y1 - -- else - -- fy = y3 - -- end - -- - xv[i] = fx - yv[i] = fy + if lastindex < cnt then + firstindex = lastindex + 1 + end end + first = last + 1 end + for i=1,nofpoints do local pi = points[i] local fx = xv[i] |