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skia2/tests/PathOpsExtendedTest.cpp
caryclark 2bec26a716 fix security bug 
This fix is a tradeoff. It changes intersection to
treat a case where one coincident run is intersected at one point
and the other edge is not as continuing to be a span.

The old code tried to treat this as a single point.
The old code is probably right, but this change alone
made the data structures inconsistent. Later, extending
the coincident runs would fail by incorrectly discarding
the single point intersection.

As a result, this fixes the security test and one other, but
makes a different test fail. Isolating the failure uncovered
a reduced case that fails with and without the change, so
there are more serious problems here. Those problems are
addressed in a separate CL.

Many of the test edits below remove ill-thought out debugging
messaging that fire off global state, which isn't usable
in a multi-threaded test environment.

In the end, with this fix, all existing tests (modulo one
new failure and one new non-failure) pass in debug and
in the extended release test suites.

TBR=reed@google.com
BUG=614248
GOLD_TRYBOT_URL= https://gold.skia.org/search?issue=2018513003

Review-Url: https://codereview.chromium.org/2018513003
2016-05-26 09:01:47 -07:00

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22 KiB
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/*
* 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 "PathOpsExtendedTest.h"
#include "PathOpsThreadedCommon.h"
#include "SkBitmap.h"
#include "SkCanvas.h"
#include "SkForceLinking.h"
#include "SkMatrix.h"
#include "SkMutex.h"
#include "SkPaint.h"
#include "SkRTConf.h"
#include "SkStream.h"
#include <stdlib.h>
#ifdef SK_BUILD_FOR_MAC
#include <sys/sysctl.h>
#endif
__SK_FORCE_IMAGE_DECODER_LINKING;
DEFINE_bool2(runFail, f, false, "run tests known to fail.");
DEFINE_bool2(runBinary, f, false, "run tests known to fail binary sect.");
static const char marker[] =
"</div>\n"
"\n"
"<script type=\"text/javascript\">\n"
"\n"
"var testDivs = [\n";
static const char* opStrs[] = {
"kDifference_SkPathOp",
"kIntersect_SkPathOp",
"kUnion_SkPathOp",
"kXor_PathOp",
"kReverseDifference_SkPathOp",
};
static const char* opSuffixes[] = {
"d",
"i",
"u",
"o",
};
#if DEBUG_SHOW_TEST_NAME
static void showPathData(const SkPath& path) {
SkPath::RawIter iter(path);
uint8_t verb;
SkPoint pts[4];
SkPoint firstPt = {0, 0}, lastPt = {0, 0};
bool firstPtSet = false;
bool lastPtSet = true;
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
switch (verb) {
case SkPath::kMove_Verb:
if (firstPtSet && lastPtSet && firstPt != lastPt) {
SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", lastPt.fX, lastPt.fY,
firstPt.fX, firstPt.fY);
lastPtSet = false;
}
firstPt = pts[0];
firstPtSet = true;
continue;
case SkPath::kLine_Verb:
SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", pts[0].fX, pts[0].fY,
pts[1].fX, pts[1].fY);
lastPt = pts[1];
lastPtSet = true;
break;
case SkPath::kQuad_Verb:
SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}},\n",
pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY);
lastPt = pts[2];
lastPtSet = true;
break;
case SkPath::kConic_Verb:
SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}}, //weight=%1.9g\n",
pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY,
iter.conicWeight());
lastPt = pts[2];
lastPtSet = true;
break;
case SkPath::kCubic_Verb:
SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}},\n",
pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY,
pts[3].fX, pts[3].fY);
lastPt = pts[3];
lastPtSet = true;
break;
case SkPath::kClose_Verb:
if (firstPtSet && lastPtSet && firstPt != lastPt) {
SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", lastPt.fX, lastPt.fY,
firstPt.fX, firstPt.fY);
}
firstPtSet = lastPtSet = false;
break;
default:
SkDEBUGFAIL("bad verb");
return;
}
}
if (firstPtSet && lastPtSet && firstPt != lastPt) {
SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", lastPt.fX, lastPt.fY,
firstPt.fX, firstPt.fY);
}
}
#endif
void showOp(const SkPathOp op) {
switch (op) {
case kDifference_SkPathOp:
SkDebugf("op difference\n");
break;
case kIntersect_SkPathOp:
SkDebugf("op intersect\n");
break;
case kUnion_SkPathOp:
SkDebugf("op union\n");
break;
case kXOR_SkPathOp:
SkDebugf("op xor\n");
break;
case kReverseDifference_SkPathOp:
SkDebugf("op reverse difference\n");
break;
default:
SkASSERT(0);
}
}
#if DEBUG_SHOW_TEST_NAME
static char hexorator(int x) {
if (x < 10) {
return x + '0';
}
x -= 10;
SkASSERT(x < 26);
return x + 'A';
}
#endif
void ShowTestName(PathOpsThreadState* state, int a, int b, int c, int d) {
#if DEBUG_SHOW_TEST_NAME
state->fSerialNo[0] = hexorator(state->fA);
state->fSerialNo[1] = hexorator(state->fB);
state->fSerialNo[2] = hexorator(state->fC);
state->fSerialNo[3] = hexorator(state->fD);
state->fSerialNo[4] = hexorator(a);
state->fSerialNo[5] = hexorator(b);
state->fSerialNo[6] = hexorator(c);
state->fSerialNo[7] = hexorator(d);
state->fSerialNo[8] = '\0';
SkDebugf("%s\n", state->fSerialNo);
if (strcmp(state->fSerialNo, state->fKey) == 0) {
SkDebugf("%s\n", state->fPathStr);
}
#endif
}
const int bitWidth = 64;
const int bitHeight = 64;
static void scaleMatrix(const SkPath& one, const SkPath& two, SkMatrix& scale) {
SkRect larger = one.getBounds();
larger.join(two.getBounds());
SkScalar largerWidth = larger.width();
if (largerWidth < 4) {
largerWidth = 4;
}
SkScalar largerHeight = larger.height();
if (largerHeight < 4) {
largerHeight = 4;
}
SkScalar hScale = (bitWidth - 2) / largerWidth;
SkScalar vScale = (bitHeight - 2) / largerHeight;
scale.reset();
scale.preScale(hScale, vScale);
larger.fLeft *= hScale;
larger.fRight *= hScale;
larger.fTop *= vScale;
larger.fBottom *= vScale;
SkScalar dx = -16000 > larger.fLeft ? -16000 - larger.fLeft
: 16000 < larger.fRight ? 16000 - larger.fRight : 0;
SkScalar dy = -16000 > larger.fTop ? -16000 - larger.fTop
: 16000 < larger.fBottom ? 16000 - larger.fBottom : 0;
scale.postTranslate(dx, dy);
}
static int pathsDrawTheSame(SkBitmap& bits, const SkPath& scaledOne, const SkPath& scaledTwo,
int& error2x2) {
if (bits.width() == 0) {
bits.allocN32Pixels(bitWidth * 2, bitHeight);
}
SkCanvas canvas(bits);
canvas.drawColor(SK_ColorWHITE);
SkPaint paint;
canvas.save();
const SkRect& bounds1 = scaledOne.getBounds();
canvas.translate(-bounds1.fLeft + 1, -bounds1.fTop + 1);
canvas.drawPath(scaledOne, paint);
canvas.restore();
canvas.save();
canvas.translate(-bounds1.fLeft + 1 + bitWidth, -bounds1.fTop + 1);
canvas.drawPath(scaledTwo, paint);
canvas.restore();
int errors2 = 0;
int errors = 0;
for (int y = 0; y < bitHeight - 1; ++y) {
uint32_t* addr1 = bits.getAddr32(0, y);
uint32_t* addr2 = bits.getAddr32(0, y + 1);
uint32_t* addr3 = bits.getAddr32(bitWidth, y);
uint32_t* addr4 = bits.getAddr32(bitWidth, y + 1);
for (int x = 0; x < bitWidth - 1; ++x) {
// count 2x2 blocks
bool err = addr1[x] != addr3[x];
if (err) {
errors2 += addr1[x + 1] != addr3[x + 1]
&& addr2[x] != addr4[x] && addr2[x + 1] != addr4[x + 1];
errors++;
}
}
}
error2x2 = errors2;
return errors;
}
static int pathsDrawTheSame(const SkPath& one, const SkPath& two, SkBitmap& bits, SkPath& scaledOne,
SkPath& scaledTwo, int& error2x2) {
SkMatrix scale;
scaleMatrix(one, two, scale);
one.transform(scale, &scaledOne);
two.transform(scale, &scaledTwo);
return pathsDrawTheSame(bits, scaledOne, scaledTwo, error2x2);
}
bool drawAsciiPaths(const SkPath& one, const SkPath& two, bool drawPaths) {
if (!drawPaths) {
return true;
}
const SkRect& bounds1 = one.getBounds();
const SkRect& bounds2 = two.getBounds();
SkRect larger = bounds1;
larger.join(bounds2);
SkBitmap bits;
char out[256];
int bitWidth = SkScalarCeilToInt(larger.width()) + 2;
if (bitWidth * 2 + 1 >= (int) sizeof(out)) {
return false;
}
int bitHeight = SkScalarCeilToInt(larger.height()) + 2;
if (bitHeight >= (int) sizeof(out)) {
return false;
}
bits.allocN32Pixels(bitWidth * 2, bitHeight);
SkCanvas canvas(bits);
canvas.drawColor(SK_ColorWHITE);
SkPaint paint;
canvas.save();
canvas.translate(-bounds1.fLeft + 1, -bounds1.fTop + 1);
canvas.drawPath(one, paint);
canvas.restore();
canvas.save();
canvas.translate(-bounds1.fLeft + 1 + bitWidth, -bounds1.fTop + 1);
canvas.drawPath(two, paint);
canvas.restore();
for (int y = 0; y < bitHeight; ++y) {
uint32_t* addr1 = bits.getAddr32(0, y);
int x;
char* outPtr = out;
for (x = 0; x < bitWidth; ++x) {
*outPtr++ = addr1[x] == (uint32_t) -1 ? '_' : 'x';
}
*outPtr++ = '|';
for (x = bitWidth; x < bitWidth * 2; ++x) {
*outPtr++ = addr1[x] == (uint32_t) -1 ? '_' : 'x';
}
*outPtr++ = '\0';
SkDebugf("%s\n", out);
}
return true;
}
int comparePaths(skiatest::Reporter* reporter, const char* filename, const SkPath& one,
const SkPath& two, SkBitmap& bitmap) {
int errors2x2;
SkPath scaledOne, scaledTwo;
(void) pathsDrawTheSame(one, two, bitmap, scaledOne, scaledTwo, errors2x2);
if (errors2x2 == 0) {
return 0;
}
const int MAX_ERRORS = 9;
return errors2x2 > MAX_ERRORS ? errors2x2 : 0;
}
static SkTDArray<SkPathOp> gTestOp;
static void showPathOpPath(const char* testName, const SkPath& one, const SkPath& two,
const SkPath& a, const SkPath& b, const SkPath& scaledOne, const SkPath& scaledTwo,
const SkPathOp shapeOp, const SkMatrix& scale) {
SkASSERT((unsigned) shapeOp < SK_ARRAY_COUNT(opStrs));
if (!testName) {
testName = "xOp";
}
SkDebugf("static void %s_%s(skiatest::Reporter* reporter, const char* filename) {\n",
testName, opSuffixes[shapeOp]);
*gTestOp.append() = shapeOp;
SkDebugf(" SkPath path, pathB;\n");
SkPathOpsDebug::ShowOnePath(a, "path", false);
SkPathOpsDebug::ShowOnePath(b, "pathB", false);
SkDebugf(" testPathOp(reporter, path, pathB, %s, filename);\n", opStrs[shapeOp]);
SkDebugf("}\n");
drawAsciiPaths(scaledOne, scaledTwo, true);
}
SK_DECLARE_STATIC_MUTEX(compareDebugOut3);
static int comparePaths(skiatest::Reporter* reporter, const char* testName, const SkPath& one,
const SkPath& scaledOne, const SkPath& two, const SkPath& scaledTwo, SkBitmap& bitmap,
const SkPath& a, const SkPath& b, const SkPathOp shapeOp, const SkMatrix& scale,
bool expectSuccess) {
int errors2x2;
const int MAX_ERRORS = 8;
(void) pathsDrawTheSame(bitmap, scaledOne, scaledTwo, errors2x2);
if (!expectSuccess) {
if (errors2x2 < MAX_ERRORS) {
REPORTER_ASSERT(reporter, 0);
}
return 0;
}
if (errors2x2 == 0) {
return 0;
}
if (errors2x2 >= MAX_ERRORS) {
SkAutoMutexAcquire autoM(compareDebugOut3);
showPathOpPath(testName, one, two, a, b, scaledOne, scaledTwo, shapeOp, scale);
SkDebugf("\n/*");
REPORTER_ASSERT(reporter, 0);
SkDebugf(" */\n");
}
return errors2x2 >= MAX_ERRORS ? errors2x2 : 0;
}
// Default values for when reporter->verbose() is false.
static int testNumber = 55;
static const char* testName = "pathOpTest";
static void writeTestName(const char* nameSuffix, SkMemoryWStream& outFile) {
outFile.writeText(testName);
outFile.writeDecAsText(testNumber);
++testNumber;
if (nameSuffix) {
outFile.writeText(nameSuffix);
}
}
static void outputToStream(const char* pathStr, const char* pathPrefix, const char* nameSuffix,
const char* testFunction, bool twoPaths, SkMemoryWStream& outFile) {
#if 0
outFile.writeText("\n<div id=\"");
writeTestName(nameSuffix, outFile);
outFile.writeText("\">\n");
if (pathPrefix) {
outFile.writeText(pathPrefix);
}
outFile.writeText(pathStr);
outFile.writeText("</div>\n\n");
outFile.writeText(marker);
outFile.writeText(" ");
writeTestName(nameSuffix, outFile);
outFile.writeText(",\n\n\n");
#endif
outFile.writeText("static void ");
writeTestName(nameSuffix, outFile);
outFile.writeText("(skiatest::Reporter* reporter) {\n SkPath path");
if (twoPaths) {
outFile.writeText(", pathB");
}
outFile.writeText(";\n");
if (pathPrefix) {
outFile.writeText(pathPrefix);
}
outFile.writeText(pathStr);
outFile.writeText(" ");
outFile.writeText(testFunction);
outFile.writeText("\n}\n\n");
#if 0
outFile.writeText("static void (*firstTest)() = ");
writeTestName(nameSuffix, outFile);
outFile.writeText(";\n\n");
outFile.writeText("static struct {\n");
outFile.writeText(" void (*fun)();\n");
outFile.writeText(" const char* str;\n");
outFile.writeText("} tests[] = {\n");
outFile.writeText(" TEST(");
writeTestName(nameSuffix, outFile);
outFile.writeText("),\n");
#endif
outFile.flush();
}
SK_DECLARE_STATIC_MUTEX(simplifyDebugOut);
bool testSimplify(SkPath& path, bool useXor, SkPath& out, PathOpsThreadState& state,
const char* pathStr) {
SkPath::FillType fillType = useXor ? SkPath::kEvenOdd_FillType : SkPath::kWinding_FillType;
path.setFillType(fillType);
state.fReporter->bumpTestCount();
if (!Simplify(path, &out)) {
SkDebugf("%s did not expect failure\n", __FUNCTION__);
REPORTER_ASSERT(state.fReporter, 0);
return false;
}
if (!state.fReporter->verbose()) {
return true;
}
int result = comparePaths(state.fReporter, nullptr, path, out, *state.fBitmap);
if (result) {
SkAutoMutexAcquire autoM(simplifyDebugOut);
char temp[8192];
sk_bzero(temp, sizeof(temp));
SkMemoryWStream stream(temp, sizeof(temp));
const char* pathPrefix = nullptr;
const char* nameSuffix = nullptr;
if (fillType == SkPath::kEvenOdd_FillType) {
pathPrefix = " path.setFillType(SkPath::kEvenOdd_FillType);\n";
nameSuffix = "x";
}
const char testFunction[] = "testSimplify(reporter, path);";
outputToStream(pathStr, pathPrefix, nameSuffix, testFunction, false, stream);
SkDebugf("%s", temp);
REPORTER_ASSERT(state.fReporter, 0);
}
state.fReporter->bumpTestCount();
return result == 0;
}
static bool inner_simplify(skiatest::Reporter* reporter, const SkPath& path, const char* filename,
bool checkFail) {
#if 0 && DEBUG_SHOW_TEST_NAME
showPathData(path);
#endif
SkPath out;
if (!Simplify(path, &out)) {
SkDebugf("%s did not expect %s failure\n", __FUNCTION__, filename);
REPORTER_ASSERT(reporter, 0);
return false;
}
SkBitmap bitmap;
int errors = comparePaths(reporter, filename, path, out, bitmap);
if (!checkFail) {
if (!errors) {
SkDebugf("%s failing test %s now succeeds\n", __FUNCTION__, filename);
REPORTER_ASSERT(reporter, 0);
return false;
}
} else if (errors) {
REPORTER_ASSERT(reporter, 0);
}
reporter->bumpTestCount();
return errors == 0;
}
bool testSimplify(skiatest::Reporter* reporter, const SkPath& path, const char* filename) {
return inner_simplify(reporter, path, filename, true);
}
bool testSimplifyCheck(skiatest::Reporter* reporter, const SkPath& path, const char* filename,
bool checkFail) {
return inner_simplify(reporter, path, filename, checkFail);
}
#if DEBUG_SHOW_TEST_NAME
static void showName(const SkPath& a, const SkPath& b, const SkPathOp shapeOp) {
SkDebugf("\n");
showPathData(a);
showOp(shapeOp);
showPathData(b);
}
#endif
bool OpDebug(const SkPath& one, const SkPath& two, SkPathOp op, SkPath* result,
bool expectSuccess SkDEBUGPARAMS(const char* testName));
static bool innerPathOp(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
const SkPathOp shapeOp, const char* testName, bool expectSuccess) {
#if 0 && DEBUG_SHOW_TEST_NAME
showName(a, b, shapeOp);
#endif
SkPath out;
if (!OpDebug(a, b, shapeOp, &out, expectSuccess SkDEBUGPARAMS(testName))) {
SkDebugf("%s did not expect failure\n", __FUNCTION__);
REPORTER_ASSERT(reporter, 0);
return false;
}
if (!reporter->verbose()) {
return true;
}
SkPath pathOut, scaledPathOut;
SkRegion rgnA, rgnB, openClip, rgnOut;
openClip.setRect(-16000, -16000, 16000, 16000);
rgnA.setPath(a, openClip);
rgnB.setPath(b, openClip);
rgnOut.op(rgnA, rgnB, (SkRegion::Op) shapeOp);
rgnOut.getBoundaryPath(&pathOut);
SkMatrix scale;
scaleMatrix(a, b, scale);
SkRegion scaledRgnA, scaledRgnB, scaledRgnOut;
SkPath scaledA, scaledB;
scaledA.addPath(a, scale);
scaledA.setFillType(a.getFillType());
scaledB.addPath(b, scale);
scaledB.setFillType(b.getFillType());
scaledRgnA.setPath(scaledA, openClip);
scaledRgnB.setPath(scaledB, openClip);
scaledRgnOut.op(scaledRgnA, scaledRgnB, (SkRegion::Op) shapeOp);
scaledRgnOut.getBoundaryPath(&scaledPathOut);
SkBitmap bitmap;
SkPath scaledOut;
scaledOut.addPath(out, scale);
scaledOut.setFillType(out.getFillType());
int result = comparePaths(reporter, testName, pathOut, scaledPathOut, out, scaledOut, bitmap,
a, b, shapeOp, scale, expectSuccess);
reporter->bumpTestCount();
return result == 0;
}
bool testPathOp(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
const SkPathOp shapeOp, const char* testName) {
return innerPathOp(reporter, a, b, shapeOp, testName, true);
}
bool testPathOpCheck(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
const SkPathOp shapeOp, const char* testName, bool checkFail) {
return innerPathOp(reporter, a, b, shapeOp, testName, checkFail);
}
bool testPathOpFailCheck(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
const SkPathOp shapeOp, const char* testName) {
return innerPathOp(reporter, a, b, shapeOp, testName, false);
}
bool testPathFailOp(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
const SkPathOp shapeOp, const char* testName) {
#if DEBUG_SHOW_TEST_NAME
showName(a, b, shapeOp);
#endif
SkPath orig;
orig.lineTo(54, 43);
SkPath out = orig;
if (Op(a, b, shapeOp, &out) ) {
SkDebugf("%s test is expected to fail\n", __FUNCTION__);
REPORTER_ASSERT(reporter, 0);
return false;
}
SkASSERT(out == orig);
return true;
}
SK_DECLARE_STATIC_MUTEX(gMutex);
void initializeTests(skiatest::Reporter* reporter, const char* test) {
#if 0 // doesn't work yet
SK_CONF_SET("images.jpeg.suppressDecoderWarnings", true);
SK_CONF_SET("images.png.suppressDecoderWarnings", true);
#endif
if (reporter->verbose()) {
SkAutoMutexAcquire lock(gMutex);
testName = test;
size_t testNameSize = strlen(test);
SkFILEStream inFile("../../experimental/Intersection/op.htm");
if (inFile.isValid()) {
SkTDArray<char> inData;
inData.setCount((int) inFile.getLength());
size_t inLen = inData.count();
inFile.read(inData.begin(), inLen);
inFile.setPath(nullptr);
char* insert = strstr(inData.begin(), marker);
if (insert) {
insert += sizeof(marker) - 1;
const char* numLoc = insert + 4 /* indent spaces */ + testNameSize - 1;
testNumber = atoi(numLoc) + 1;
}
}
}
}
void outputProgress(char* ramStr, const char* pathStr, SkPath::FillType pathFillType) {
const char testFunction[] = "testSimplify(path);";
const char* pathPrefix = nullptr;
const char* nameSuffix = nullptr;
if (pathFillType == SkPath::kEvenOdd_FillType) {
pathPrefix = " path.setFillType(SkPath::kEvenOdd_FillType);\n";
nameSuffix = "x";
}
SkMemoryWStream rRamStream(ramStr, PATH_STR_SIZE);
outputToStream(pathStr, pathPrefix, nameSuffix, testFunction, false, rRamStream);
}
void outputProgress(char* ramStr, const char* pathStr, SkPathOp op) {
const char testFunction[] = "testOp(path);";
SkASSERT((size_t) op < SK_ARRAY_COUNT(opSuffixes));
const char* nameSuffix = opSuffixes[op];
SkMemoryWStream rRamStream(ramStr, PATH_STR_SIZE);
outputToStream(pathStr, nullptr, nameSuffix, testFunction, true, rRamStream);
}
void RunTestSet(skiatest::Reporter* reporter, TestDesc tests[], size_t count,
void (*firstTest)(skiatest::Reporter* , const char* filename),
void (*skipTest)(skiatest::Reporter* , const char* filename),
void (*stopTest)(skiatest::Reporter* , const char* filename), bool reverse) {
size_t index;
if (firstTest) {
index = count - 1;
while (index > 0 && tests[index].fun != firstTest) {
--index;
}
#if DEBUG_SHOW_TEST_NAME
SkDebugf("\n<div id=\"%s\">\n", tests[index].str);
#endif
(*tests[index].fun)(reporter, tests[index].str);
if (tests[index].fun == stopTest) {
return;
}
}
index = reverse ? count - 1 : 0;
size_t last = reverse ? 0 : count - 1;
bool foundSkip = !skipTest;
do {
if (tests[index].fun == skipTest) {
foundSkip = true;
}
if (foundSkip && tests[index].fun != firstTest) {
#if DEBUG_SHOW_TEST_NAME
SkDebugf("\n<div id=\"%s\">\n", tests[index].str);
#endif
(*tests[index].fun)(reporter, tests[index].str);
}
if (tests[index].fun == stopTest || index == last) {
break;
}
index += reverse ? -1 : 1;
} while (true);
#if DEBUG_SHOW_TEST_NAME
SkDebugf(
"\n"
"</div>\n"
"\n"
"<script type=\"text/javascript\">\n"
"\n"
"var testDivs = [\n"
);
index = reverse ? count - 1 : 0;
last = reverse ? 0 : count - 1;
foundSkip = !skipTest;
do {
if (tests[index].fun == skipTest) {
foundSkip = true;
}
if (foundSkip && tests[index].fun != firstTest) {
SkDebugf(" %s,\n", tests[index].str);
}
if (tests[index].fun == stopTest || index == last) {
break;
}
index += reverse ? -1 : 1;
} while (true);
#endif
}
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