[trace] Add a --profile mode

To save typing when creating macro-benchmarks --profile disables
mark-dirty and caller-info and compresses the trace using LZMA. Not for
computers short on memory!

perf/README

@@ -199,15 +199,22 @@ as the files are much smaller.
 The output file will be called $APPLICATION.$PID.trace, the actual path
 written to will be displayed on the terminal.
 
+Alternatively you can use:
+$ cairo-trace --profile $APPLICATION [$ARGV]
+which automatically passes --no-mark-dirty and --no-callers and compresses
+the resultant trace using LZMA. To use the trace with cairo-perf-trace you
+will first need to decompress it.
+
 Then to use cairo-perf-trace:
 $ ./cairo-perf-trace $APPLICATION.$PID.trace
 
-Alternatively you can put the trace into perf/traces, or set
+Alternatively you can put the trace into perf/cairo-traces, or set
 CAIRO_TRACE_DIR to point to your trace directory, and the trace will be
 included in the performance tests.
 
 If you record an interesting trace, please consider sharing it by compressing
-it, LZMA preferred, and posting a link to cairo@cairographics.org.
+it, LZMA preferred, and posting a link to cairo@cairographics.org, or by
+uploading it to git.cairographics.org/cairo-traces.
 
 
 How to run cairo-perf-diff on WINDOWS

util/cairo-trace/cairo-trace.in

@@ -7,6 +7,7 @@ nofile=
 flush=
 nocallers=
 nomarkdirty=
+compress=
 
 usage() {
 cat << EOF
@@ -20,6 +21,8 @@ Whatever else happens is driven by its argument:
                     terminal instead.
   --no-callers    - Do not lookup the caller address/symbol/line whilst tracing.
   --no-mark-dirty - Do not record image data for cairo_mark_dirty()
+  --compress      - Compress the output with LZMA
+  --profile       - Combine --no-callers and --no-mark-dirty and --compress
 
 Enviroment variables understood by cairo-trace:
   CAIRO_TRACE_FLUSH - flush the output after every function call.
@@ -48,6 +51,18 @@ while test $skip -eq 1; do
 	skip=1
 	nomarkdirty=1
 	;;
+    --compress)
+	skip=1
+	compress=1
+	nofile=1
+	;;
+    --profile)
+	skip=1
+	compress=1
+	nomarkdirty=1
+	nocallers=1
+	nofile=1
+	;;
     --version)
 	echo "cairo-trace, version @CAIRO_VERSION_MAJOR@.@CAIRO_VERSION_MINOR@.@CAIRO_VERSION_MICRO@."
 	exit
@@ -87,6 +102,9 @@ fi
 
 if test -z "$nofile"; then
     CAIRO_TRACE_OUTDIR=`pwd` "$@"
+elif test -n "$compress"; then
+    echo Generating compressed trace file $1.$$.lzma
+    CAIRO_TRACE_FD=3 "$@" 3>&1 | lzma -cz9 > $1.$$.lzma
 else
     CAIRO_TRACE_FD=3 "$@" 3>&1 >/dev/null
 fi