skia2/tools/lua/count_reduced_clipstacks.lua
commit-bot@chromium.org c530208ab0 Add point count to lua SkPath.
Add some scripts for classifying rrects and counting complex clip combinations.

R=reed@google.com

Author: bsalomon@google.com

Review URL: https://codereview.chromium.org/181843004

git-svn-id: http://skia.googlecode.com/svn/trunk@13601 2bbb7eff-a529-9590-31e7-b0007b416f81
2014-02-26 21:38:47 +00:00

88 lines
3.0 KiB
Lua

stats = {}
-- switch this to run on the automated scraper system
newline = "\n"
-- newline = "\\n"
function sk_scrape_startcanvas(c, fileName)
canvas = c
oldstackstr = "<invalid>"
end
function sk_scrape_endcanvas(c, fileName)
canvas = nil
end
function string.starts(String,Start)
return string.sub(String,1,string.len(Start))==Start
end
function build_stack_string(stack)
local info = ""
for i = 1, #stack do
local element = stack[i];
info = info .. element["op"] .. ", " .. element["type"] .. ", aa:" .. tostring(element["aa"])
if (element["type"] == "path") then
if (element["path"]:getSegmentTypes() == "line" and element["path"]:isConvex()) then
info = info .. ", convex_poly " .. element["path"]:countPoints() .. " points"
else
info = info .. ", fill: " .. element["path"]:getFillType()
info = info .. ", segments: (" .. element["path"]:getSegmentTypes() .. ")"
info = info .. ", convex:" .. tostring(element["path"]:isConvex())
end
end
info = info .. newline
end
return info
end
function sk_scrape_accumulate(t)
if (string.starts(t.verb, "draw")) then
local stack = canvas:getReducedClipStack()
local stackstr = build_stack_string(stack)
if (stackstr ~= "") then
if (stats[stackstr] == nil) then
stats[stackstr] = {}
stats[stackstr].drawCnt = 0
stats[stackstr].instanceCnt = 0
end
stats[stackstr].drawCnt = stats[stackstr].drawCnt + 1
if (stackstr ~= oldstackstr) then
stats[stackstr].instanceCnt = stats[stackstr].instanceCnt + 1
end
end
oldstackstr = stackstr
end
end
function print_stats(stats)
function sort_by_draw_cnt(a, b)
return a.data.drawCnt > b.data.drawCnt
end
array = {}
for k,v in pairs(stats) do
array[#array + 1] = { name = k, data = v }
end
table.sort(array, sort_by_draw_cnt)
for i = 1, #array do
io.write("\n-------\n", array[i].name, tostring(array[i].data.drawCnt), " draws, ", tostring(array[i].data.instanceCnt), " instances.\n")
end
end
function sk_scrape_summarize()
print_stats(stats)
--[[ To use the web scraper comment out the print above, run the code below to generate an
aggregate table on the automated scraper system. Then use the print_stats function on
agg_stats in the aggregator step.
for k,v in pairs(stats) do
if (v.drawCnt ~= nil) then
-- io.write("\n-------\n", k, tostring(v.drawCnt), " draws, ", tostring(v.instanceCnt), " instances.\n")
local tableEntry = 'agg_stats["' .. k .. '"]'
io.write(tableEntry, " = ", tableEntry, " or {}\n")
io.write(tableEntry, ".drawCnt = (", tableEntry, ".drawCnt or 0 ) + ", v.drawCnt, "\n")
io.write(tableEntry, ".instanceCnt = (", tableEntry, ".instanceCnt or 0 ) + ", v.instanceCnt, "\n")
end
end
--]]
end