diff options
Diffstat (limited to 'tools/lua/gradients.lua')
| -rw-r--r-- | tools/lua/gradients.lua | 32 |
1 files changed, 26 insertions, 6 deletions
diff --git a/tools/lua/gradients.lua b/tools/lua/gradients.lua index 628632817f..fb43017b1d 100644 --- a/tools/lua/gradients.lua +++ b/tools/lua/gradients.lua @@ -1,6 +1,12 @@ function sk_scrape_startcanvas(c, fileName) end function sk_scrape_endcanvas(c, fileName) end +SkScalarNearlyZero = 1.0 / bit32.lshift(1.0, 12) + +function SkScalarNearlyEqual(a, b) + return math.abs(a,b) <= SkScalarNearlyZero +end + gradients = {} i = 1 @@ -13,11 +19,25 @@ function sk_scrape_accumulate(t) local g = s:asAGradient() if g then gradients[i] = {} - gradients[i].colorCount = g.colorCount - gradients[i].type = g.type - gradients[i].tile = g.tile - gradients[i].isEvenlySpaced = g.isEvenlySpaced - gradients[i].containsHardStops = g.containsHardStops + + gradients[i].colorCount = g.colorCount + gradients[i].type = g.type + gradients[i].tile = g.tile + + numHardStops = 0 + isEvenlySpaced = true + for j = 2, g.colorCount, 1 do + if not SkScalarNearlyEqual(g.positions[j], j/(g.colorCount-1)) then + isEvenlySpaced = false + end + + if SkScalarNearlyEqual(g.positions[j], g.positions[j-1]) then + numHardStops = numHardStops + 1 + end + end + + gradients[i].isEvenlySpaced = isEvenlySpaced + gradients[i].numHardStops = numHardStops; gradients[i].positions = {} for j = 1, g.colorCount, 1 do @@ -45,7 +65,7 @@ function sk_scrape_summarize() v.type, v.tile, tonumber(v.isEvenlySpaced and 1 or 0), - tonumber(v.containsHardStops and 1 or 0), + v.numHardStops, pos)) end end |