skia2/tools/skdiff/skdiff_html.cpp
Ben Wagner 160cd4b53c Fix leaks in skdiff
The skdiff code leaks some file names. Instead of augmenting the
existing manual ownership, give everything an owner.

Change-Id: I8bc2cb39ad4176bb3be645710ae28271f5b12ff9
Reviewed-on: https://skia-review.googlesource.com/c/skia/+/437000
Reviewed-by: Herb Derby <herb@google.com>
Commit-Queue: Ben Wagner <bungeman@google.com>
2021-08-11 14:52:41 +00:00

315 lines
12 KiB
C++

/*
* 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 "include/core/SkStream.h"
#include "include/core/SkTime.h"
#include "tools/skdiff/skdiff.h"
#include "tools/skdiff/skdiff_html.h"
/// Make layout more consistent by scaling image to 240 height, 360 width,
/// or natural size, whichever is smallest.
static int compute_image_height(int height, int width) {
int retval = 240;
if (height < retval) {
retval = height;
}
float scale = (float) retval / height;
if (width * scale > 360) {
scale = (float) 360 / width;
retval = static_cast<int>(height * scale);
}
return retval;
}
static void print_table_header(SkFILEWStream* stream,
const int matchCount,
const int colorThreshold,
const RecordArray& differences,
const SkString &baseDir,
const SkString &comparisonDir,
bool doOutputDate = false) {
stream->writeText("<table>\n");
stream->writeText("<tr><th>");
stream->writeText("select image</th>\n<th>");
if (doOutputDate) {
SkTime::DateTime dt;
SkTime::GetDateTime(&dt);
stream->writeText("SkDiff run at ");
stream->writeDecAsText(dt.fHour);
stream->writeText(":");
if (dt.fMinute < 10) {
stream->writeText("0");
}
stream->writeDecAsText(dt.fMinute);
stream->writeText(":");
if (dt.fSecond < 10) {
stream->writeText("0");
}
stream->writeDecAsText(dt.fSecond);
stream->writeText("<br>");
}
stream->writeDecAsText(matchCount);
stream->writeText(" of ");
stream->writeDecAsText(differences.count());
stream->writeText(" diffs matched ");
if (colorThreshold == 0) {
stream->writeText("exactly");
} else {
stream->writeText("within ");
stream->writeDecAsText(colorThreshold);
stream->writeText(" color units per component");
}
stream->writeText(".<br>");
stream->writeText("</th>\n<th>");
stream->writeText("every different pixel shown in white");
stream->writeText("</th>\n<th>");
stream->writeText("color difference at each pixel");
stream->writeText("</th>\n<th>baseDir: ");
stream->writeText(baseDir.c_str());
stream->writeText("</th>\n<th>comparisonDir: ");
stream->writeText(comparisonDir.c_str());
stream->writeText("</th>\n");
stream->writeText("</tr>\n");
}
static void print_pixel_count(SkFILEWStream* stream, const DiffRecord& diff) {
stream->writeText("<br>(");
stream->writeDecAsText(static_cast<int>(diff.fFractionDifference *
diff.fBase.fBitmap.width() *
diff.fBase.fBitmap.height()));
stream->writeText(" pixels)");
/*
stream->writeDecAsText(diff.fWeightedFraction *
diff.fBaseWidth *
diff.fBaseHeight);
stream->writeText(" weighted pixels)");
*/
}
static void print_checkbox_cell(SkFILEWStream* stream, const DiffRecord& diff) {
stream->writeText("<td><input type=\"checkbox\" name=\"");
stream->writeText(diff.fBase.fFilename.c_str());
stream->writeText("\" checked=\"yes\"></td>");
}
static void print_label_cell(SkFILEWStream* stream, const DiffRecord& diff) {
char metricBuf [20];
stream->writeText("<td><b>");
stream->writeText(diff.fBase.fFilename.c_str());
stream->writeText("</b><br>");
switch (diff.fResult) {
case DiffRecord::kEqualBits_Result:
SkDEBUGFAIL("should not encounter DiffRecord with kEqualBits here");
return;
case DiffRecord::kEqualPixels_Result:
SkDEBUGFAIL("should not encounter DiffRecord with kEqualPixels here");
return;
case DiffRecord::kDifferentSizes_Result:
stream->writeText("Image sizes differ</td>");
return;
case DiffRecord::kDifferentPixels_Result:
sprintf(metricBuf, "%.4f%%", 100 * diff.fFractionDifference);
stream->writeText(metricBuf);
stream->writeText(" of pixels differ");
stream->writeText("\n (");
sprintf(metricBuf, "%.4f%%", 100 * diff.fWeightedFraction);
stream->writeText(metricBuf);
stream->writeText(" weighted)");
// Write the actual number of pixels that differ if it's < 1%
if (diff.fFractionDifference < 0.01) {
print_pixel_count(stream, diff);
}
stream->writeText("<br>");
if (SkScalarRoundToInt(diff.fAverageMismatchA) > 0) {
stream->writeText("<br>Average alpha channel mismatch ");
stream->writeDecAsText(SkScalarRoundToInt(diff.fAverageMismatchA));
}
stream->writeText("<br>Max alpha channel mismatch ");
stream->writeDecAsText(SkScalarRoundToInt(diff.fMaxMismatchA));
stream->writeText("<br>Total alpha channel mismatch ");
stream->writeDecAsText(static_cast<int>(diff.fTotalMismatchA));
stream->writeText("<br>");
stream->writeText("<br>Average color mismatch ");
stream->writeDecAsText(SkScalarRoundToInt(MAX3(diff.fAverageMismatchR,
diff.fAverageMismatchG,
diff.fAverageMismatchB)));
stream->writeText("<br>Max color mismatch ");
stream->writeDecAsText(MAX3(diff.fMaxMismatchR,
diff.fMaxMismatchG,
diff.fMaxMismatchB));
stream->writeText("</td>");
break;
case DiffRecord::kCouldNotCompare_Result:
stream->writeText("Could not compare.<br>base: ");
stream->writeText(DiffResource::getStatusDescription(diff.fBase.fStatus));
stream->writeText("<br>comparison: ");
stream->writeText(DiffResource::getStatusDescription(diff.fComparison.fStatus));
stream->writeText("</td>");
return;
default:
SkDEBUGFAIL("encountered DiffRecord with unknown result type");
return;
}
}
static void print_image_cell(SkFILEWStream* stream, const SkString& path, int height) {
stream->writeText("<td><a href=\"");
stream->writeText(path.c_str());
stream->writeText("\"><img src=\"");
stream->writeText(path.c_str());
stream->writeText("\" height=\"");
stream->writeDecAsText(height);
stream->writeText("px\"></a></td>");
}
static void print_link_cell(SkFILEWStream* stream, const SkString& path, const char* text) {
stream->writeText("<td><a href=\"");
stream->writeText(path.c_str());
stream->writeText("\">");
stream->writeText(text);
stream->writeText("</a></td>");
}
static void print_diff_resource_cell(SkFILEWStream* stream, const DiffResource& resource,
const SkString& relativePath, bool local) {
SkString fullPath = resource.fFullPath;
if (resource.fBitmap.empty()) {
if (DiffResource::kCouldNotDecode_Status == resource.fStatus) {
if (local && !resource.fFilename.isEmpty()) {
print_link_cell(stream, resource.fFilename, "N/A");
return;
}
if (!fullPath.isEmpty()) {
if (!fullPath.startsWith(PATH_DIV_STR)) {
fullPath.prepend(relativePath);
}
print_link_cell(stream, fullPath, "N/A");
return;
}
}
stream->writeText("<td>N/A</td>");
return;
}
int height = compute_image_height(resource.fBitmap.height(), resource.fBitmap.width());
if (local) {
print_image_cell(stream, resource.fFilename, height);
return;
}
if (!fullPath.startsWith(PATH_DIV_STR)) {
fullPath.prepend(relativePath);
}
print_image_cell(stream, fullPath, height);
}
static void print_diff_row(SkFILEWStream* stream, const DiffRecord& diff, const SkString& relativePath) {
stream->writeText("<tr>\n");
print_checkbox_cell(stream, diff);
print_label_cell(stream, diff);
print_diff_resource_cell(stream, diff.fWhite, relativePath, true);
print_diff_resource_cell(stream, diff.fDifference, relativePath, true);
print_diff_resource_cell(stream, diff.fBase, relativePath, false);
print_diff_resource_cell(stream, diff.fComparison, relativePath, false);
stream->writeText("</tr>\n");
stream->flush();
}
void print_diff_page(const int matchCount,
const int colorThreshold,
const RecordArray& differences,
const SkString& baseDir,
const SkString& comparisonDir,
const SkString& outputDir) {
SkASSERT(!baseDir.isEmpty());
SkASSERT(!comparisonDir.isEmpty());
SkASSERT(!outputDir.isEmpty());
SkString outputPath(outputDir);
outputPath.append("index.html");
//SkFILEWStream outputStream ("index.html");
SkFILEWStream outputStream(outputPath.c_str());
// Need to convert paths from relative-to-cwd to relative-to-outputDir
// FIXME this doesn't work if there are '..' inside the outputDir
bool isPathAbsolute = false;
// On Windows or Linux, a path starting with PATH_DIV_CHAR is absolute.
if (outputDir.size() > 0 && PATH_DIV_CHAR == outputDir[0]) {
isPathAbsolute = true;
}
#ifdef SK_BUILD_FOR_WIN
// On Windows, absolute paths can also start with "x:", where x is any
// drive letter.
if (outputDir.size() > 1 && ':' == outputDir[1]) {
isPathAbsolute = true;
}
#endif
SkString relativePath;
if (!isPathAbsolute) {
unsigned int ui;
for (ui = 0; ui < outputDir.size(); ui++) {
if (outputDir[ui] == PATH_DIV_CHAR) {
relativePath.append(".." PATH_DIV_STR);
}
}
}
outputStream.writeText(
"<html>\n<head>\n"
"<script src=\"https://ajax.googleapis.com/ajax/"
"libs/jquery/1.7.2/jquery.min.js\"></script>\n"
"<script type=\"text/javascript\">\n"
"function generateCheckedList() {\n"
"var boxes = $(\":checkbox:checked\");\n"
"var fileCmdLineString = '';\n"
"var fileMultiLineString = '';\n"
"for (var i = 0; i < boxes.length; i++) {\n"
"fileMultiLineString += boxes[i].name + '<br>';\n"
"fileCmdLineString += boxes[i].name + '&nbsp;';\n"
"}\n"
"$(\"#checkedList\").html(fileCmdLineString + "
"'<br><br>' + fileMultiLineString);\n"
"}\n"
"</script>\n</head>\n<body>\n");
print_table_header(&outputStream, matchCount, colorThreshold, differences,
baseDir, comparisonDir);
int i;
for (i = 0; i < differences.count(); i++) {
const DiffRecord& diff = differences[i];
switch (diff.fResult) {
// Cases in which there is no diff to report.
case DiffRecord::kEqualBits_Result:
case DiffRecord::kEqualPixels_Result:
continue;
// Cases in which we want a detailed pixel diff.
case DiffRecord::kDifferentPixels_Result:
case DiffRecord::kDifferentSizes_Result:
case DiffRecord::kCouldNotCompare_Result:
print_diff_row(&outputStream, diff, relativePath);
continue;
default:
SkDEBUGFAIL("encountered DiffRecord with unknown result type");
continue;
}
}
outputStream.writeText(
"</table>\n"
"<input type=\"button\" "
"onclick=\"generateCheckedList()\" "
"value=\"Create Rebaseline List\">\n"
"<div id=\"checkedList\"></div>\n"
"</body>\n</html>\n");
outputStream.flush();
}