add script to count glyph -vs- char draw calls
git-svn-id: http://skia.googlecode.com/svn/trunk@9548 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/tools/lua/chars-vs-glyphs.lua b/tools/lua/chars-vs-glyphs.lua
new file mode 100644
index 0000000..4098387
--- /dev/null
+++ b/tools/lua/chars-vs-glyphs.lua
@@ -0,0 +1,35 @@
+local canvas
+
+function sk_scrape_startcanvas(c, fileName)
+ canvas = c
+end
+
+function sk_scrape_endcanvas(c, fileName)
+ canvas = nil
+end
+
+local glyph_calls = 0
+local unichar_calls = 0
+
+local isTextVerbs = {
+ drawPosText = true,
+ drawPosTextH = true,
+ drawText = true,
+ drawTextOnPath = true,
+}
+
+function sk_scrape_accumulate(t)
+ if isTextVerbs[t.verb] then
+ if t.glyphs then
+ glyph_calls = glyph_calls + 1
+ else
+ unichar_calls = unichar_calls + 1
+ end
+ end
+end
+
+function sk_scrape_summarize()
+ io.write("glyph calls = ", glyph_calls,
+ ", unichar calls = ", unichar_calls, "\n");
+end
+