skia2/tools/lua/scrape_dashing_full.lua
2014-05-15 20:35:50 +00:00

147 lines
4.5 KiB
Lua
Executable File

local canvas -- holds the current canvas (from startcanvas())
--[[
startcanvas() is called at the start of each picture file, passing the
canvas that we will be drawing into, and the name of the file.
Following this call, there will be some number of calls to accumulate(t)
where t is a table of parameters that were passed to that draw-op.
t.verb is a string holding the name of the draw-op (e.g. "drawRect")
when a given picture is done, we call endcanvas(canvas, fileName)
]]
function sk_scrape_startcanvas(c, fileName)
canvas = c
end
--[[
Called when the current canvas is done drawing.
]]
function sk_scrape_endcanvas(c, fileName)
canvas = nil
end
--[[
Use to initialize all keys passed in keyTable to zero in table.
Useful so that keys that are never get incremented still output zero at end
]]
function resetTableKeys(table, keyTable)
for k, v in next, keyTable do
table[v] = 0
end
end
function increment(table, key)
table[key] = (table[key] or 0) + 1
end
local dashCount = 0
local total_found = {}
local drawPoints_count = {}
local drawPoints_direction = {}
resetTableKeys(drawPoints_direction, {"hori", "vert", "other"})
local dashInterval_count = {}
local dashInterval_pattern = {}
resetTableKeys(dashInterval_pattern, {"one_one", "zero_on", "other"})
local dash_phase = {}
resetTableKeys(dash_phase, {"zero", "other"})
local dash_cap = {}
resetTableKeys(dash_cap, {"butt", "round", "square"})
local dashTable = {}
dashTable.total_found = total_found
dashTable.drawPoints_count = drawPoints_count
dashTable.drawPoints_direction = drawPoints_direction
dashTable.dashInterval_count = dashInterval_count
dashTable.dashInterval_pattern = dashInterval_pattern
dashTable.dash_phase = dash_phase
dashTable.dash_cap = dash_cap
function sk_scrape_accumulate(t)
local p = t.paint
if p then
local pe = p:getPathEffect()
if pe then
local de = pe:asADash()
if de then
dashCount = dashCount + 1
increment(total_found, t.verb);
increment(dashInterval_count, #de.intervals)
if 2 == #de.intervals then
if 1 == de.intervals[1] and 1 == de.intervals[2] then
increment(dashInterval_pattern, "one_one")
elseif 0 == de.intervals[1] then
increment(dashInterval_pattern, "zero_on")
else
increment(dashInterval_pattern, "other")
end
end
if 0 == de.phase then
increment(dash_phase, "zero")
else
increment(dash_phase, "other")
end
local cap = p:getStrokeCap()
if 0 == cap then
increment(dash_cap, "butt")
elseif 1 == cap then
increment(dash_cap, "round")
else
increment(dash_cap, "square")
end
if "drawPoints" == t.verb then
local points = t.points
increment(drawPoints_count, #points)
if 2 == #points then
if points[1].y == points[2].y then
increment(drawPoints_direction, "hori")
elseif points[1].x == points[2].x then
increment(drawPoints_direction, "vert")
else
increment(drawPoints_direction, "other")
end
end
end
--[[
eventually would like to print out info on drawPath verbs with dashed effect
]]
if "drawPath" == t.verb then
end
end
end
end
end
--[[
lua_pictures will call this function after all of the pictures have been
"accumulated".
]]
function sk_scrape_summarize()
-- use for non telemetry
--[[
io.write("Total dashed effects is: ", dashCount, "\n");
for k1, v1 in next, dashTable do
io.write("\nTable: ", k1, "\n")
for k, v in next, v1 do
io.write("\"", k, "\": ", v, "\n")
end
end
]]
-- use for telemetry
io.write("\ndashCount = dashCount + ", tostring(dashCount), "\n")
for k1, v1 in next, dashTable do
for k, v in next, v1 do
io.write("\nincrement(dashTable, \"", k1, "\", \"", k, "\", ", v, ")\n")
end
end
end