skia2/tools/lua/gradients.lua

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function sk_scrape_startcanvas(c, fileName) end
function sk_scrape_endcanvas(c, fileName) end
count3 = 0
count3sym = 0
function sk_scrape_accumulate(t)
local p = t.paint
if p then
local s = p:getShader()
if s then
local g = s:asAGradient()
if g then
--io.write(g.type, " gradient with ", g.colorCount, " colors\n")
if g.colorCount == 3 then
count3 = count3 + 1
if (g.midPos >= 0.499 and g.midPos <= 0.501) then
count3sym = count3sym + 1
end
end
end
end
end
end
function sk_scrape_summarize()
io.write("Number of 3 color gradients: ", count3, "\n");
io.write("Number of 3 color symmetric gradients: ", count3sym, "\n");
end