diff options
Diffstat (limited to 'tools/skdiff/skdiff_image.cpp')
| -rw-r--r-- | tools/skdiff/skdiff_image.cpp | 367 |
1 files changed, 0 insertions, 367 deletions
diff --git a/tools/skdiff/skdiff_image.cpp b/tools/skdiff/skdiff_image.cpp deleted file mode 100644 index cb446d424f..0000000000 --- a/tools/skdiff/skdiff_image.cpp +++ /dev/null @@ -1,367 +0,0 @@ -/* - * Copyright 2012 Google Inc. - * - * Use of this source code is governed by a BSD-style license that can be - * found in the LICENSE file. - */ -#include "skdiff.h" -#include "skdiff_utils.h" -#include "SkBitmap.h" -#include "SkData.h" -#include "SkImageEncoder.h" -#include "SkOSFile.h" -#include "SkTypes.h" - -#include <stdio.h> - -/// If outputDir.isEmpty(), don't write out diff files. -static void create_diff_images (DiffMetricProc dmp, - const int colorThreshold, - const SkString& baseFile, - const SkString& comparisonFile, - const SkString& outputDir, - const SkString& outputFilename, - DiffRecord* drp) { - SkASSERT(!baseFile.isEmpty()); - SkASSERT(!comparisonFile.isEmpty()); - - drp->fBase.fFilename = baseFile; - drp->fBase.fFullPath = baseFile; - drp->fBase.fStatus = DiffResource::kSpecified_Status; - - drp->fComparison.fFilename = comparisonFile; - drp->fComparison.fFullPath = comparisonFile; - drp->fComparison.fStatus = DiffResource::kSpecified_Status; - - sk_sp<SkData> baseFileBits = read_file(drp->fBase.fFullPath.c_str()); - if (baseFileBits) { - drp->fBase.fStatus = DiffResource::kRead_Status; - } - sk_sp<SkData> comparisonFileBits = read_file(drp->fComparison.fFullPath.c_str()); - if (comparisonFileBits) { - drp->fComparison.fStatus = DiffResource::kRead_Status; - } - if (nullptr == baseFileBits || nullptr == comparisonFileBits) { - if (nullptr == baseFileBits) { - drp->fBase.fStatus = DiffResource::kCouldNotRead_Status; - } - if (nullptr == comparisonFileBits) { - drp->fComparison.fStatus = DiffResource::kCouldNotRead_Status; - } - drp->fResult = DiffRecord::kCouldNotCompare_Result; - return; - } - - if (are_buffers_equal(baseFileBits.get(), comparisonFileBits.get())) { - drp->fResult = DiffRecord::kEqualBits_Result; - return; - } - - get_bitmap(baseFileBits, drp->fBase, false); - get_bitmap(comparisonFileBits, drp->fComparison, false); - if (DiffResource::kDecoded_Status != drp->fBase.fStatus || - DiffResource::kDecoded_Status != drp->fComparison.fStatus) - { - drp->fResult = DiffRecord::kCouldNotCompare_Result; - return; - } - - create_and_write_diff_image(drp, dmp, colorThreshold, outputDir, outputFilename); - //TODO: copy fBase.fFilename and fComparison.fFilename to outputDir - // svn and git often present tmp files to diff tools which are promptly deleted - - //TODO: serialize drp to outputDir - // write a tool to deserialize them and call print_diff_page - - SkASSERT(DiffRecord::kUnknown_Result != drp->fResult); -} - -static void usage (char * argv0) { - SkDebugf("Skia image diff tool\n"); - SkDebugf("\n" -"Usage: \n" -" %s <baseFile> <comparisonFile>\n" , argv0); - SkDebugf( -"\nArguments:" -"\n --failonresult <result>: After comparing all file pairs, exit with nonzero" -"\n return code (number of file pairs yielding this" -"\n result) if any file pairs yielded this result." -"\n This flag may be repeated, in which case the" -"\n return code will be the number of fail pairs" -"\n yielding ANY of these results." -"\n --failonstatus <baseStatus> <comparisonStatus>: exit with nonzero return" -"\n code if any file pairs yeilded this status." -"\n --help: display this info" -"\n --listfilenames: list all filenames for each result type in stdout" -"\n --nodiffs: don't write out image diffs, just generate report on stdout" -"\n --outputdir: directory to write difference images" -"\n --threshold <n>: only report differences > n (per color channel) [default 0]" -"\n -u: ignored. Recognized for compatibility with svn diff." -"\n -L: first occurrence label for base, second occurrence label for comparison." -"\n Labels must be of the form \"<filename>(\t<specifier>)?\"." -"\n The base <filename> will be used to create files in outputdir." -"\n" -"\n baseFile: baseline image file." -"\n comparisonFile: comparison image file" -"\n" -"\nIf no sort is specified, it will sort by fraction of pixels mismatching." -"\n"); -} - -const int kNoError = 0; -const int kGenericError = -1; - -int main(int argc, char** argv) { - DiffMetricProc diffProc = compute_diff_pmcolor; - - // Maximum error tolerated in any one color channel in any one pixel before - // a difference is reported. - int colorThreshold = 0; - SkString baseFile; - SkString baseLabel; - SkString comparisonFile; - SkString comparisonLabel; - SkString outputDir; - - bool listFilenames = false; - - bool failOnResultType[DiffRecord::kResultCount]; - for (int i = 0; i < DiffRecord::kResultCount; i++) { - failOnResultType[i] = false; - } - - bool failOnStatusType[DiffResource::kStatusCount][DiffResource::kStatusCount]; - for (int base = 0; base < DiffResource::kStatusCount; ++base) { - for (int comparison = 0; comparison < DiffResource::kStatusCount; ++comparison) { - failOnStatusType[base][comparison] = false; - } - } - - int i; - int numUnflaggedArguments = 0; - int numLabelArguments = 0; - for (i = 1; i < argc; i++) { - if (!strcmp(argv[i], "--failonresult")) { - if (argc == ++i) { - SkDebugf("failonresult expects one argument.\n"); - continue; - } - DiffRecord::Result type = DiffRecord::getResultByName(argv[i]); - if (type != DiffRecord::kResultCount) { - failOnResultType[type] = true; - } else { - SkDebugf("ignoring unrecognized result <%s>\n", argv[i]); - } - continue; - } - if (!strcmp(argv[i], "--failonstatus")) { - if (argc == ++i) { - SkDebugf("failonstatus missing base status.\n"); - continue; - } - bool baseStatuses[DiffResource::kStatusCount]; - if (!DiffResource::getMatchingStatuses(argv[i], baseStatuses)) { - SkDebugf("unrecognized base status <%s>\n", argv[i]); - } - - if (argc == ++i) { - SkDebugf("failonstatus missing comparison status.\n"); - continue; - } - bool comparisonStatuses[DiffResource::kStatusCount]; - if (!DiffResource::getMatchingStatuses(argv[i], comparisonStatuses)) { - SkDebugf("unrecognized comarison status <%s>\n", argv[i]); - } - - for (int base = 0; base < DiffResource::kStatusCount; ++base) { - for (int comparison = 0; comparison < DiffResource::kStatusCount; ++comparison) { - failOnStatusType[base][comparison] |= - baseStatuses[base] && comparisonStatuses[comparison]; - } - } - continue; - } - if (!strcmp(argv[i], "--help")) { - usage(argv[0]); - return kNoError; - } - if (!strcmp(argv[i], "--listfilenames")) { - listFilenames = true; - continue; - } - if (!strcmp(argv[i], "--outputdir")) { - if (argc == ++i) { - SkDebugf("outputdir expects one argument.\n"); - continue; - } - outputDir.set(argv[i]); - continue; - } - if (!strcmp(argv[i], "--threshold")) { - colorThreshold = atoi(argv[++i]); - continue; - } - if (!strcmp(argv[i], "-u")) { - //we don't produce unified diffs, ignore parameter to work with svn diff - continue; - } - if (!strcmp(argv[i], "-L")) { - if (argc == ++i) { - SkDebugf("label expects one argument.\n"); - continue; - } - switch (numLabelArguments++) { - case 0: - baseLabel.set(argv[i]); - continue; - case 1: - comparisonLabel.set(argv[i]); - continue; - default: - SkDebugf("extra label argument <%s>\n", argv[i]); - usage(argv[0]); - return kGenericError; - } - continue; - } - if (argv[i][0] != '-') { - switch (numUnflaggedArguments++) { - case 0: - baseFile.set(argv[i]); - continue; - case 1: - comparisonFile.set(argv[i]); - continue; - default: - SkDebugf("extra unflagged argument <%s>\n", argv[i]); - usage(argv[0]); - return kGenericError; - } - } - - SkDebugf("Unrecognized argument <%s>\n", argv[i]); - usage(argv[0]); - return kGenericError; - } - - if (numUnflaggedArguments != 2) { - usage(argv[0]); - return kGenericError; - } - - if (listFilenames) { - printf("Base file is [%s]\n", baseFile.c_str()); - } - - if (listFilenames) { - printf("Comparison file is [%s]\n", comparisonFile.c_str()); - } - - if (outputDir.isEmpty()) { - if (listFilenames) { - printf("Not writing any diffs. No output dir specified.\n"); - } - } else { - if (!outputDir.endsWith(PATH_DIV_STR)) { - outputDir.append(PATH_DIV_STR); - } - if (listFilenames) { - printf("Writing diffs. Output dir is [%s]\n", outputDir.c_str()); - } - } - - // Some obscure documentation about diff/patch labels: - // - // Posix says the format is: <filename><tab><date> - // It also states that if a filename contains <tab> or <newline> - // the result is implementation defined - // - // Svn diff --diff-cmd provides labels of the form: <filename><tab><revision> - // - // Git diff --ext-diff does not supply arguments compatible with diff. - // However, it does provide the filename directly. - // skimagediff_git.sh: skimagediff %2 %5 -L "%1\t(%3)" -L "%1\t(%6)" - // - // Git difftool sets $LOCAL, $REMOTE, $MERGED, and $BASE instead of command line parameters. - // difftool.<>.cmd: skimagediff $LOCAL $REMOTE -L "$MERGED\t(local)" -L "$MERGED\t(remote)" - // - // Diff will write any specified label verbatim. Without a specified label diff will write - // <filename><tab><date> - // However, diff will encode the filename as a cstring if the filename contains - // Any of <space> or <double quote> - // A char less than 32 - // Any escapable character \\, \a, \b, \t, \n, \v, \f, \r - // - // Patch decodes: - // If first <non-white-space> is <double quote>, parse filename from cstring. - // If there is a <tab> after the first <non-white-space>, filename is - // [first <non-white-space>, the next run of <white-space> with an embedded <tab>). - // Otherwise the filename is [first <non-space>, the next <white-space>). - // - // The filename /dev/null means the file does not exist (used in adds and deletes). - - // Considering the above, skimagediff will consider the contents of a -L parameter as - // <filename>(\t<specifier>)? - SkString outputFile; - - if (baseLabel.isEmpty()) { - baseLabel.set(baseFile); - outputFile = baseLabel; - } else { - const char* baseLabelCstr = baseLabel.c_str(); - const char* tab = strchr(baseLabelCstr, '\t'); - if (nullptr == tab) { - outputFile = baseLabel; - } else { - outputFile.set(baseLabelCstr, tab - baseLabelCstr); - } - } - if (comparisonLabel.isEmpty()) { - comparisonLabel.set(comparisonFile); - } - printf("Base: %s\n", baseLabel.c_str()); - printf("Comparison: %s\n", comparisonLabel.c_str()); - - DiffRecord dr; - create_diff_images(diffProc, colorThreshold, baseFile, comparisonFile, outputDir, outputFile, - &dr); - - if (DiffResource::isStatusFailed(dr.fBase.fStatus)) { - printf("Base %s.\n", DiffResource::getStatusDescription(dr.fBase.fStatus)); - } - if (DiffResource::isStatusFailed(dr.fComparison.fStatus)) { - printf("Comparison %s.\n", DiffResource::getStatusDescription(dr.fComparison.fStatus)); - } - printf("Base and Comparison %s.\n", DiffRecord::getResultDescription(dr.fResult)); - - if (DiffRecord::kDifferentPixels_Result == dr.fResult) { - printf("%.4f%% of pixels differ", 100 * dr.fFractionDifference); - printf(" (%.4f%% weighted)", 100 * dr.fWeightedFraction); - if (dr.fFractionDifference < 0.01) { - printf(" %d pixels", static_cast<int>(dr.fFractionDifference * - dr.fBase.fBitmap.width() * - dr.fBase.fBitmap.height())); - } - - printf("\nAverage color mismatch: "); - printf("%d", static_cast<int>(MAX3(dr.fAverageMismatchR, - dr.fAverageMismatchG, - dr.fAverageMismatchB))); - printf("\nMax color mismatch: "); - printf("%d", MAX3(dr.fMaxMismatchR, - dr.fMaxMismatchG, - dr.fMaxMismatchB)); - printf("\n"); - } - printf("\n"); - - int num_failing_results = 0; - if (failOnResultType[dr.fResult]) { - ++num_failing_results; - } - if (failOnStatusType[dr.fBase.fStatus][dr.fComparison.fStatus]) { - ++num_failing_results; - } - - return num_failing_results; -} |