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tools/skp_parser: add some explanitory comments

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Change-Id: I38e9a392214394ac3552b05dcc6b27a1ae937e57
Reviewed-on: https://skia-review.googlesource.com/63820
Reviewed-by: Hal Canary <halcanary@google.com>
Commit-Queue: Hal Canary <halcanary@google.com>
This commit is contained in:
Hal Canary 2017-10-25 13:02:02 -04:00 committed by Skia Commit-Bot
parent e8d55d5ab0
commit 291af4f17e
1 changed files with 18 additions and 0 deletions
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18
tools/skp_parser.cpp
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@ -16,6 +16,24 @@
#include <io.h>
#endif
/*
If you execute skp_parser with one argument, it spits out a json representation
of the skp, but that's incomplete since it's missing many binary blobs (these
could represent images or typefaces or just anything that doesn't currently
have a json representation). Each unique blob is labeled with a string in the
form "data/%d". So for example:
tools/git-sync-deps
bin/gn gen out/debug
ninja -C out/debug dm skp_parser
out/debug/dm -m grayscale -w /tmp/dm --config skp
out/debug/skp_parser /tmp/dm/skp/gm/grayscalejpg.skp | less
out/debug/skp_parser /tmp/dm/skp/gm/grayscalejpg.skp | grep data
out/debug/skp_parser /tmp/dm/skp/gm/grayscalejpg.skp data/0 | file -
out/debug/skp_parser /tmp/dm/skp/gm/grayscalejpg.skp data/0 > /tmp/data0.png
"data/0" is an image that the SKP serializer has encoded as PNG.
*/
int main(int argc, char** argv) {
if (argc < 2) {
SkDebugf("Usage:\n %s SKP_FILE [DATA_URL]\n", argv[0]);