diff options
author | 2014-03-03 19:18:39 +0000 | |
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committer | 2014-03-03 19:18:39 +0000 | |
commit | 6f4fb0f1296422a44d5d0dac155d82595dc5ebec (patch) | |
tree | 4901983c0553090f68884a15b3b82c2649f94ef9 /tools | |
parent | 1b94819fcbe766039a488ad3975db2e1a8a25e28 (diff) |
Generating the 1M skps frequently yields truncated skps. This tool is intended to help automate weeding these out.
Please see skbug:1057
rmistry for tools, gyp
mtklein for src\core & include\core
BUG=skia:1057
R=rmistry@google.com, mtklein@google.com, reed@google.com
Author: robertphillips@google.com
Review URL: https://codereview.chromium.org/176863004
git-svn-id: http://skia.googlecode.com/svn/trunk@13643 2bbb7eff-a529-9590-31e7-b0007b416f81
Diffstat (limited to 'tools')
-rw-r--r-- | tools/skpinfo.cpp | 151 |
1 files changed, 151 insertions, 0 deletions
diff --git a/tools/skpinfo.cpp b/tools/skpinfo.cpp new file mode 100644 index 0000000000..e14abd430b --- /dev/null +++ b/tools/skpinfo.cpp @@ -0,0 +1,151 @@ +/* + * Copyright 2014 Google Inc. + * + * Use of this source code is governed by a BSD-style license that can be + * found in the LICENSE file. + */ + +#include "SkCommandLineFlags.h" +#include "SkPicture.h" +#include "SkPicturePlayback.h" +#include "SkStream.h" + +DEFINE_string2(input, i, "", "skp on which to report"); +DEFINE_bool2(version, v, true, "version"); +DEFINE_bool2(width, w, true, "width"); +DEFINE_bool2(height, h, true, "height"); +DEFINE_bool2(tags, t, true, "tags"); +DEFINE_bool2(quiet, q, false, "quiet"); + +// This tool can print simple information about an SKP but its main use +// is just to check if an SKP has been truncated during the recording +// process. +// return codes: +static const int kSuccess = 0; +static const int kTruncatedFile = 1; +static const int kNotAnSKP = 2; +static const int kInvalidTag = 3; +static const int kMissingInput = 4; +static const int kIOError = 5; + +int tool_main(int argc, char** argv); +int tool_main(int argc, char** argv) { + SkCommandLineFlags::SetUsage("Prints information about an skp file"); + SkCommandLineFlags::Parse(argc, argv); + + if (FLAGS_input.count() != 1) { + if (!FLAGS_quiet) { + SkDebugf("Missing input file\n"); + } + return kMissingInput; + } + + SkFILEStream stream(FLAGS_input[0]); + if (!stream.isValid()) { + if (!FLAGS_quiet) { + SkDebugf("Couldn't open file\n"); + } + return kIOError; + } + + size_t totStreamSize = stream.getLength(); + + SkPictInfo info; + if (!SkPicture::InternalOnly_StreamIsSKP(&stream, &info)) { + return kNotAnSKP; + } + + if (FLAGS_version && !FLAGS_quiet) { + SkDebugf("Version: %d\n", info.fVersion); + } + if (FLAGS_width && !FLAGS_quiet) { + SkDebugf("Width: %d\n", info.fWidth); + } + if (FLAGS_height && !FLAGS_quiet) { + SkDebugf("Height: %d\n", info.fHeight); + } + + if (!stream.readBool()) { + // If we read true there's a picture playback object flattened + // in the file; if false, there isn't a playback, so we're done + // reading the file. + return kSuccess; + } + + for (;;) { + uint32_t tag = stream.readU32(); + if (SK_PICT_EOF_TAG == tag) { + break; + } + + uint32_t chunkSize = stream.readU32(); + size_t curPos = stream.getPosition(); + + // "move" doesn't error out when seeking beyond the end of file + // so we need a preemptive check here. + if (curPos+chunkSize > totStreamSize) { + if (!FLAGS_quiet) { + SkDebugf("truncated file\n"); + } + return kTruncatedFile; + } + + // Not all the tags store the chunk size (in bytes). Three + // of them store tag-specific size information (e.g., number of + // fonts) instead. This forces us to early exit when those + // chunks are encountered. + switch (tag) { + case SK_PICT_READER_TAG: + if (FLAGS_tags && !FLAGS_quiet) { + SkDebugf("SK_PICT_READER_TAG %d\n", chunkSize); + } + break; + case SK_PICT_FACTORY_TAG: + if (FLAGS_tags && !FLAGS_quiet) { + SkDebugf("SK_PICT_FACTORY_TAG %d\n", chunkSize); + SkDebugf("Exiting early due to format limitations\n"); + } + return kSuccess; // TODO: need to store size in bytes + break; + case SK_PICT_TYPEFACE_TAG: + if (FLAGS_tags && !FLAGS_quiet) { + SkDebugf("SK_PICT_TYPEFACE_TAG %d\n", chunkSize); + SkDebugf("Exiting early due to format limitations\n"); + } + return kSuccess; // TODO: need to store size in bytes + break; + case SK_PICT_PICTURE_TAG: + if (FLAGS_tags && !FLAGS_quiet) { + SkDebugf("SK_PICT_PICTURE_TAG %d\n", chunkSize); + SkDebugf("Exiting early due to format limitations\n"); + } + return kSuccess; // TODO: need to store size in bytes + break; + case SK_PICT_BUFFER_SIZE_TAG: + if (FLAGS_tags && !FLAGS_quiet) { + SkDebugf("SK_PICT_BUFFER_SIZE_TAG %d\n", chunkSize); + } + break; + default: + if (!FLAGS_quiet) { + SkDebugf("Unknown tag %d\n", chunkSize); + } + return kInvalidTag; + } + + if (!stream.move(chunkSize)) { + if (!FLAGS_quiet) { + SkDebugf("seek error\n"); + } + return kTruncatedFile; + } + } + + return kSuccess; +} + +#if !defined SK_BUILD_FOR_IOS +int main(int argc, char * const argv[]) { + return tool_main(argc, (char**) argv); +} +#endif |