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      1 /*
      2  * Copyright 2012 Google Inc.
      3  *
      4  * Use of this source code is governed by a BSD-style license that can be
      5  * found in the LICENSE file.
      6  */
      7 
      8 #include "PathOpsExtendedTest.h"
      9 #include "PathOpsThreadedCommon.h"
     10 #include "SkBitmap.h"
     11 #include "SkCanvas.h"
     12 #include "SkForceLinking.h"
     13 #include "SkMatrix.h"
     14 #include "SkMutex.h"
     15 #include "SkPaint.h"
     16 #include "SkRTConf.h"
     17 #include "SkStream.h"
     18 
     19 #include <stdlib.h>
     20 
     21 #ifdef SK_BUILD_FOR_MAC
     22 #include <sys/sysctl.h>
     23 #endif
     24 
     25 __SK_FORCE_IMAGE_DECODER_LINKING;
     26 
     27 DEFINE_bool2(runFail, f, false, "run tests known to fail.");
     28 DEFINE_bool2(runBinary, f, false, "run tests known to fail binary sect.");
     29 
     30 static const char marker[] =
     31     "</div>\n"
     32     "\n"
     33     "<script type=\"text/javascript\">\n"
     34     "\n"
     35     "var testDivs = [\n";
     36 
     37 static const char* opStrs[] = {
     38     "kDifference_SkPathOp",
     39     "kIntersect_SkPathOp",
     40     "kUnion_SkPathOp",
     41     "kXor_PathOp",
     42     "kReverseDifference_SkPathOp",
     43 };
     44 
     45 static const char* opSuffixes[] = {
     46     "d",
     47     "i",
     48     "u",
     49     "o",
     50 };
     51 
     52 #if DEBUG_SHOW_TEST_NAME
     53 static void showPathData(const SkPath& path) {
     54     SkPath::RawIter iter(path);
     55     uint8_t verb;
     56     SkPoint pts[4];
     57     SkPoint firstPt = {0, 0}, lastPt = {0, 0};
     58     bool firstPtSet = false;
     59     bool lastPtSet = true;
     60     while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
     61         switch (verb) {
     62             case SkPath::kMove_Verb:
     63                 if (firstPtSet && lastPtSet && firstPt != lastPt) {
     64                     SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", lastPt.fX, lastPt.fY,
     65                             firstPt.fX, firstPt.fY);
     66                     lastPtSet = false;
     67                 }
     68                 firstPt = pts[0];
     69                 firstPtSet = true;
     70                 continue;
     71             case SkPath::kLine_Verb:
     72                 SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", pts[0].fX, pts[0].fY,
     73                         pts[1].fX, pts[1].fY);
     74                 lastPt = pts[1];
     75                 lastPtSet = true;
     76                 break;
     77             case SkPath::kQuad_Verb:
     78                 SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}},\n",
     79                         pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY);
     80                 lastPt = pts[2];
     81                 lastPtSet = true;
     82                 break;
     83             case SkPath::kConic_Verb:
     84                 SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}},  //weight=%1.9g\n",
     85                         pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY,
     86                         iter.conicWeight());
     87                 lastPt = pts[2];
     88                 lastPtSet = true;
     89                 break;
     90             case SkPath::kCubic_Verb:
     91                 SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}, {%1.9g,%1.9g}},\n",
     92                         pts[0].fX, pts[0].fY, pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY,
     93                         pts[3].fX, pts[3].fY);
     94                 lastPt = pts[3];
     95                 lastPtSet = true;
     96                 break;
     97             case SkPath::kClose_Verb:
     98                 if (firstPtSet && lastPtSet && firstPt != lastPt) {
     99                     SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", lastPt.fX, lastPt.fY,
    100                             firstPt.fX, firstPt.fY);
    101                 }
    102                 firstPtSet = lastPtSet = false;
    103                 break;
    104             default:
    105                 SkDEBUGFAIL("bad verb");
    106                 return;
    107         }
    108     }
    109     if (firstPtSet && lastPtSet && firstPt != lastPt) {
    110         SkDebugf("{{%1.9g,%1.9g}, {%1.9g,%1.9g}},\n", lastPt.fX, lastPt.fY,
    111                 firstPt.fX, firstPt.fY);
    112     }
    113 }
    114 #endif
    115 
    116 void showOp(const SkPathOp op) {
    117     switch (op) {
    118         case kDifference_SkPathOp:
    119             SkDebugf("op difference\n");
    120             break;
    121         case kIntersect_SkPathOp:
    122             SkDebugf("op intersect\n");
    123             break;
    124         case kUnion_SkPathOp:
    125             SkDebugf("op union\n");
    126             break;
    127         case kXOR_SkPathOp:
    128             SkDebugf("op xor\n");
    129             break;
    130         case kReverseDifference_SkPathOp:
    131             SkDebugf("op reverse difference\n");
    132             break;
    133         default:
    134             SkASSERT(0);
    135     }
    136 }
    137 
    138 #if DEBUG_SHOW_TEST_NAME
    139 static char hexorator(int x) {
    140     if (x < 10) {
    141         return x + '0';
    142     }
    143     x -= 10;
    144     SkASSERT(x < 26);
    145     return x + 'A';
    146 }
    147 #endif
    148 
    149 void ShowTestName(PathOpsThreadState* state, int a, int b, int c, int d) {
    150 #if DEBUG_SHOW_TEST_NAME
    151     state->fSerialNo[0] = hexorator(state->fA);
    152     state->fSerialNo[1] = hexorator(state->fB);
    153     state->fSerialNo[2] = hexorator(state->fC);
    154     state->fSerialNo[3] = hexorator(state->fD);
    155     state->fSerialNo[4] = hexorator(a);
    156     state->fSerialNo[5] = hexorator(b);
    157     state->fSerialNo[6] = hexorator(c);
    158     state->fSerialNo[7] = hexorator(d);
    159     state->fSerialNo[8] = '\0';
    160     SkDebugf("%s\n", state->fSerialNo);
    161     if (strcmp(state->fSerialNo, state->fKey) == 0) {
    162         SkDebugf("%s\n", state->fPathStr);
    163     }
    164 #endif
    165 }
    166 
    167 const int bitWidth = 64;
    168 const int bitHeight = 64;
    169 
    170 static void scaleMatrix(const SkPath& one, const SkPath& two, SkMatrix& scale) {
    171     SkRect larger = one.getBounds();
    172     larger.join(two.getBounds());
    173     SkScalar largerWidth = larger.width();
    174     if (largerWidth < 4) {
    175         largerWidth = 4;
    176     }
    177     SkScalar largerHeight = larger.height();
    178     if (largerHeight < 4) {
    179         largerHeight = 4;
    180     }
    181     SkScalar hScale = (bitWidth - 2) / largerWidth;
    182     SkScalar vScale = (bitHeight - 2) / largerHeight;
    183     scale.reset();
    184     scale.preScale(hScale, vScale);
    185     larger.fLeft *= hScale;
    186     larger.fRight *= hScale;
    187     larger.fTop *= vScale;
    188     larger.fBottom *= vScale;
    189     SkScalar dx = -16000 > larger.fLeft ? -16000 - larger.fLeft
    190             : 16000 < larger.fRight ? 16000 - larger.fRight : 0;
    191     SkScalar dy = -16000 > larger.fTop ? -16000 - larger.fTop
    192             : 16000 < larger.fBottom ? 16000 - larger.fBottom : 0;
    193     scale.postTranslate(dx, dy);
    194 }
    195 
    196 static int pathsDrawTheSame(SkBitmap& bits, const SkPath& scaledOne, const SkPath& scaledTwo,
    197         int& error2x2) {
    198     if (bits.width() == 0) {
    199         bits.allocN32Pixels(bitWidth * 2, bitHeight);
    200     }
    201     SkCanvas canvas(bits);
    202     canvas.drawColor(SK_ColorWHITE);
    203     SkPaint paint;
    204     canvas.save();
    205     const SkRect& bounds1 = scaledOne.getBounds();
    206     canvas.translate(-bounds1.fLeft + 1, -bounds1.fTop + 1);
    207     canvas.drawPath(scaledOne, paint);
    208     canvas.restore();
    209     canvas.save();
    210     canvas.translate(-bounds1.fLeft + 1 + bitWidth, -bounds1.fTop + 1);
    211     canvas.drawPath(scaledTwo, paint);
    212     canvas.restore();
    213     int errors2 = 0;
    214     int errors = 0;
    215     for (int y = 0; y < bitHeight - 1; ++y) {
    216         uint32_t* addr1 = bits.getAddr32(0, y);
    217         uint32_t* addr2 = bits.getAddr32(0, y + 1);
    218         uint32_t* addr3 = bits.getAddr32(bitWidth, y);
    219         uint32_t* addr4 = bits.getAddr32(bitWidth, y + 1);
    220         for (int x = 0; x < bitWidth - 1; ++x) {
    221             // count 2x2 blocks
    222             bool err = addr1[x] != addr3[x];
    223             if (err) {
    224                 errors2 += addr1[x + 1] != addr3[x + 1]
    225                         && addr2[x] != addr4[x] && addr2[x + 1] != addr4[x + 1];
    226                 errors++;
    227             }
    228         }
    229     }
    230     error2x2 = errors2;
    231     return errors;
    232 }
    233 
    234 static int pathsDrawTheSame(const SkPath& one, const SkPath& two, SkBitmap& bits, SkPath& scaledOne,
    235         SkPath& scaledTwo, int& error2x2) {
    236     SkMatrix scale;
    237     scaleMatrix(one, two, scale);
    238     one.transform(scale, &scaledOne);
    239     two.transform(scale, &scaledTwo);
    240     return pathsDrawTheSame(bits, scaledOne, scaledTwo, error2x2);
    241 }
    242 
    243 bool drawAsciiPaths(const SkPath& one, const SkPath& two, bool drawPaths) {
    244     if (!drawPaths) {
    245         return true;
    246     }
    247     const SkRect& bounds1 = one.getBounds();
    248     const SkRect& bounds2 = two.getBounds();
    249     SkRect larger = bounds1;
    250     larger.join(bounds2);
    251     SkBitmap bits;
    252     char out[256];
    253     int bitWidth = SkScalarCeilToInt(larger.width()) + 2;
    254     if (bitWidth * 2 + 1 >= (int) sizeof(out)) {
    255         return false;
    256     }
    257     int bitHeight = SkScalarCeilToInt(larger.height()) + 2;
    258     if (bitHeight >= (int) sizeof(out)) {
    259         return false;
    260     }
    261     bits.allocN32Pixels(bitWidth * 2, bitHeight);
    262     SkCanvas canvas(bits);
    263     canvas.drawColor(SK_ColorWHITE);
    264     SkPaint paint;
    265     canvas.save();
    266     canvas.translate(-bounds1.fLeft + 1, -bounds1.fTop + 1);
    267     canvas.drawPath(one, paint);
    268     canvas.restore();
    269     canvas.save();
    270     canvas.translate(-bounds1.fLeft + 1 + bitWidth, -bounds1.fTop + 1);
    271     canvas.drawPath(two, paint);
    272     canvas.restore();
    273     for (int y = 0; y < bitHeight; ++y) {
    274         uint32_t* addr1 = bits.getAddr32(0, y);
    275         int x;
    276         char* outPtr = out;
    277         for (x = 0; x < bitWidth; ++x) {
    278             *outPtr++ = addr1[x] == (uint32_t) -1 ? '_' : 'x';
    279         }
    280         *outPtr++ = '|';
    281         for (x = bitWidth; x < bitWidth * 2; ++x) {
    282             *outPtr++ = addr1[x] == (uint32_t) -1 ? '_' : 'x';
    283         }
    284         *outPtr++ = '\0';
    285         SkDebugf("%s\n", out);
    286     }
    287     return true;
    288 }
    289 
    290 int comparePaths(skiatest::Reporter* reporter, const char* filename, const SkPath& one,
    291         const SkPath& two, SkBitmap& bitmap) {
    292     int errors2x2;
    293     SkPath scaledOne, scaledTwo;
    294     (void) pathsDrawTheSame(one, two, bitmap, scaledOne, scaledTwo, errors2x2);
    295     if (errors2x2 == 0) {
    296         return 0;
    297     }
    298     const int MAX_ERRORS = 9;
    299     return errors2x2 > MAX_ERRORS ? errors2x2 : 0;
    300 }
    301 
    302 const int gTestFirst = 41;
    303 static int gTestNo = gTestFirst;
    304 static SkTDArray<SkPathOp> gTestOp;
    305 
    306 static void showPathOpPath(const char* testName, const SkPath& one, const SkPath& two,
    307         const SkPath& a, const SkPath& b, const SkPath& scaledOne, const SkPath& scaledTwo,
    308         const SkPathOp shapeOp, const SkMatrix& scale) {
    309     SkASSERT((unsigned) shapeOp < SK_ARRAY_COUNT(opStrs));
    310     if (!testName) {
    311         testName = "xOp";
    312     }
    313     SkDebugf("static void %s%d%s(skiatest::Reporter* reporter, const char* filename) {\n",
    314         testName, gTestNo, opSuffixes[shapeOp]);
    315     *gTestOp.append() = shapeOp;
    316     ++gTestNo;
    317     SkDebugf("    SkPath path, pathB;\n");
    318     SkPathOpsDebug::ShowOnePath(a, "path", false);
    319     SkPathOpsDebug::ShowOnePath(b, "pathB", false);
    320     SkDebugf("    testPathOp(reporter, path, pathB, %s, filename);\n", opStrs[shapeOp]);
    321     SkDebugf("}\n");
    322     drawAsciiPaths(scaledOne, scaledTwo, true);
    323 }
    324 
    325 void ShowTestArray(const char* testName) {
    326     if (!testName) {
    327         testName = "xOp";
    328     }
    329     for (int x = gTestFirst; x < gTestNo; ++x) {
    330         SkDebugf("    TEST(%s%d%s),\n", testName, x, opSuffixes[gTestOp[x - gTestFirst]]);
    331     }
    332 }
    333 
    334 SK_DECLARE_STATIC_MUTEX(compareDebugOut3);
    335 
    336 static int comparePaths(skiatest::Reporter* reporter, const char* testName, const SkPath& one,
    337         const SkPath& scaledOne, const SkPath& two, const SkPath& scaledTwo, SkBitmap& bitmap,
    338         const SkPath& a, const SkPath& b, const SkPathOp shapeOp, const SkMatrix& scale,
    339         bool expectSuccess) {
    340     int errors2x2;
    341     const int MAX_ERRORS = 8;
    342     (void) pathsDrawTheSame(bitmap, scaledOne, scaledTwo, errors2x2);
    343     if (!expectSuccess) {
    344         if (errors2x2 < MAX_ERRORS) {
    345             REPORTER_ASSERT(reporter, 0);
    346         }
    347         return 0;
    348     }
    349     if (errors2x2 == 0) {
    350         return 0;
    351     }
    352     if (errors2x2 >= MAX_ERRORS) {
    353         SkAutoMutexAcquire autoM(compareDebugOut3);
    354         showPathOpPath(testName, one, two, a, b, scaledOne, scaledTwo, shapeOp, scale);
    355         SkDebugf("\n/*");
    356         REPORTER_ASSERT(reporter, 0);
    357         SkDebugf(" */\n");
    358     }
    359     return errors2x2 >= MAX_ERRORS ? errors2x2 : 0;
    360 }
    361 
    362 // Default values for when reporter->verbose() is false.
    363 static int testNumber = 55;
    364 static const char* testName = "pathOpTest";
    365 
    366 static void writeTestName(const char* nameSuffix, SkMemoryWStream& outFile) {
    367     outFile.writeText(testName);
    368     outFile.writeDecAsText(testNumber);
    369     ++testNumber;
    370     if (nameSuffix) {
    371         outFile.writeText(nameSuffix);
    372     }
    373 }
    374 
    375 static void outputToStream(const char* pathStr, const char* pathPrefix, const char* nameSuffix,
    376         const char* testFunction, bool twoPaths, SkMemoryWStream& outFile) {
    377 #if 0
    378     outFile.writeText("\n<div id=\"");
    379     writeTestName(nameSuffix, outFile);
    380     outFile.writeText("\">\n");
    381     if (pathPrefix) {
    382         outFile.writeText(pathPrefix);
    383     }
    384     outFile.writeText(pathStr);
    385     outFile.writeText("</div>\n\n");
    386 
    387     outFile.writeText(marker);
    388     outFile.writeText("    ");
    389     writeTestName(nameSuffix, outFile);
    390     outFile.writeText(",\n\n\n");
    391 #endif
    392     outFile.writeText("static void ");
    393     writeTestName(nameSuffix, outFile);
    394     outFile.writeText("(skiatest::Reporter* reporter) {\n    SkPath path");
    395     if (twoPaths) {
    396         outFile.writeText(", pathB");
    397     }
    398     outFile.writeText(";\n");
    399     if (pathPrefix) {
    400         outFile.writeText(pathPrefix);
    401     }
    402     outFile.writeText(pathStr);
    403     outFile.writeText("    ");
    404     outFile.writeText(testFunction);
    405     outFile.writeText("\n}\n\n");
    406 #if 0
    407     outFile.writeText("static void (*firstTest)() = ");
    408     writeTestName(nameSuffix, outFile);
    409     outFile.writeText(";\n\n");
    410 
    411     outFile.writeText("static struct {\n");
    412     outFile.writeText("    void (*fun)();\n");
    413     outFile.writeText("    const char* str;\n");
    414     outFile.writeText("} tests[] = {\n");
    415     outFile.writeText("    TEST(");
    416     writeTestName(nameSuffix, outFile);
    417     outFile.writeText("),\n");
    418 #endif
    419     outFile.flush();
    420 }
    421 
    422 SK_DECLARE_STATIC_MUTEX(simplifyDebugOut);
    423 
    424 bool testSimplify(SkPath& path, bool useXor, SkPath& out, PathOpsThreadState& state,
    425                   const char* pathStr) {
    426     SkPath::FillType fillType = useXor ? SkPath::kEvenOdd_FillType : SkPath::kWinding_FillType;
    427     path.setFillType(fillType);
    428     state.fReporter->bumpTestCount();
    429     if (!Simplify(path, &out)) {
    430         SkDebugf("%s did not expect failure\n", __FUNCTION__);
    431         REPORTER_ASSERT(state.fReporter, 0);
    432         return false;
    433     }
    434     if (!state.fReporter->verbose()) {
    435         return true;
    436     }
    437     int result = comparePaths(state.fReporter, nullptr, path, out, *state.fBitmap);
    438     if (result) {
    439         SkAutoMutexAcquire autoM(simplifyDebugOut);
    440         char temp[8192];
    441         sk_bzero(temp, sizeof(temp));
    442         SkMemoryWStream stream(temp, sizeof(temp));
    443         const char* pathPrefix = nullptr;
    444         const char* nameSuffix = nullptr;
    445         if (fillType == SkPath::kEvenOdd_FillType) {
    446             pathPrefix = "    path.setFillType(SkPath::kEvenOdd_FillType);\n";
    447             nameSuffix = "x";
    448         }
    449         const char testFunction[] = "testSimplify(reporter, path);";
    450         outputToStream(pathStr, pathPrefix, nameSuffix, testFunction, false, stream);
    451         SkDebugf("%s", temp);
    452         REPORTER_ASSERT(state.fReporter, 0);
    453     }
    454     state.fReporter->bumpTestCount();
    455     return result == 0;
    456 }
    457 
    458 static bool inner_simplify(skiatest::Reporter* reporter, const SkPath& path, const char* filename,
    459         bool checkFail) {
    460 #if 0 && DEBUG_SHOW_TEST_NAME
    461     showPathData(path);
    462 #endif
    463     SkPath out;
    464     if (!Simplify(path, &out)) {
    465         SkDebugf("%s did not expect %s failure\n", __FUNCTION__, filename);
    466         REPORTER_ASSERT(reporter, 0);
    467         return false;
    468     }
    469     SkBitmap bitmap;
    470     int errors = comparePaths(reporter, filename, path, out, bitmap);
    471     if (!checkFail) {
    472         if (!errors) {
    473             SkDebugf("%s failing test %s now succeeds\n", __FUNCTION__, filename);
    474             REPORTER_ASSERT(reporter, 0);
    475             return false;
    476         }
    477     } else if (errors) {
    478         REPORTER_ASSERT(reporter, 0);
    479     }
    480     reporter->bumpTestCount();
    481     return errors == 0;
    482 }
    483 
    484 bool testSimplify(skiatest::Reporter* reporter, const SkPath& path, const char* filename) {
    485     return inner_simplify(reporter, path, filename, true);
    486 }
    487 
    488 bool testSimplifyCheck(skiatest::Reporter* reporter, const SkPath& path, const char* filename,
    489         bool checkFail) {
    490     return inner_simplify(reporter, path, filename, checkFail);
    491 }
    492 
    493 #if DEBUG_SHOW_TEST_NAME
    494 static void showName(const SkPath& a, const SkPath& b, const SkPathOp shapeOp) {
    495     SkDebugf("\n");
    496     showPathData(a);
    497     showOp(shapeOp);
    498     showPathData(b);
    499 }
    500 #endif
    501 
    502 bool OpDebug(const SkPath& one, const SkPath& two, SkPathOp op, SkPath* result,
    503              bool expectSuccess  SkDEBUGPARAMS(const char* testName));
    504 
    505 static bool innerPathOp(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
    506         const SkPathOp shapeOp, const char* testName, bool expectSuccess) {
    507 #if 0 && DEBUG_SHOW_TEST_NAME
    508     showName(a, b, shapeOp);
    509 #endif
    510     SkPath out;
    511     if (!OpDebug(a, b, shapeOp, &out, expectSuccess  SkDEBUGPARAMS(testName))) {
    512         SkDebugf("%s did not expect failure\n", __FUNCTION__);
    513         REPORTER_ASSERT(reporter, 0);
    514         return false;
    515     }
    516     if (!reporter->verbose()) {
    517         return true;
    518     }
    519     SkPath pathOut, scaledPathOut;
    520     SkRegion rgnA, rgnB, openClip, rgnOut;
    521     openClip.setRect(-16000, -16000, 16000, 16000);
    522     rgnA.setPath(a, openClip);
    523     rgnB.setPath(b, openClip);
    524     rgnOut.op(rgnA, rgnB, (SkRegion::Op) shapeOp);
    525     rgnOut.getBoundaryPath(&pathOut);
    526 
    527     SkMatrix scale;
    528     scaleMatrix(a, b, scale);
    529     SkRegion scaledRgnA, scaledRgnB, scaledRgnOut;
    530     SkPath scaledA, scaledB;
    531     scaledA.addPath(a, scale);
    532     scaledA.setFillType(a.getFillType());
    533     scaledB.addPath(b, scale);
    534     scaledB.setFillType(b.getFillType());
    535     scaledRgnA.setPath(scaledA, openClip);
    536     scaledRgnB.setPath(scaledB, openClip);
    537     scaledRgnOut.op(scaledRgnA, scaledRgnB, (SkRegion::Op) shapeOp);
    538     scaledRgnOut.getBoundaryPath(&scaledPathOut);
    539     SkBitmap bitmap;
    540     SkPath scaledOut;
    541     scaledOut.addPath(out, scale);
    542     scaledOut.setFillType(out.getFillType());
    543     int result = comparePaths(reporter, testName, pathOut, scaledPathOut, out, scaledOut, bitmap,
    544             a, b, shapeOp, scale, expectSuccess);
    545     reporter->bumpTestCount();
    546     return result == 0;
    547 }
    548 
    549 bool testPathOp(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
    550         const SkPathOp shapeOp, const char* testName) {
    551     return innerPathOp(reporter, a, b, shapeOp, testName, true);
    552 }
    553 
    554 bool testPathOpCheck(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
    555         const SkPathOp shapeOp, const char* testName, bool checkFail) {
    556     return innerPathOp(reporter, a, b, shapeOp, testName, checkFail);
    557 }
    558 
    559 bool testPathOpFailCheck(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
    560         const SkPathOp shapeOp, const char* testName) {
    561     return innerPathOp(reporter, a, b, shapeOp, testName, false);
    562 }
    563 
    564 bool testPathFailOp(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
    565                  const SkPathOp shapeOp, const char* testName) {
    566 #if DEBUG_SHOW_TEST_NAME
    567     showName(a, b, shapeOp);
    568 #endif
    569     SkPath orig;
    570     orig.lineTo(54, 43);
    571     SkPath out = orig;
    572     if (Op(a, b, shapeOp, &out) ) {
    573         SkDebugf("%s test is expected to fail\n", __FUNCTION__);
    574         REPORTER_ASSERT(reporter, 0);
    575         return false;
    576     }
    577     SkASSERT(out == orig);
    578     return true;
    579 }
    580 
    581 SK_DECLARE_STATIC_MUTEX(gMutex);
    582 
    583 void initializeTests(skiatest::Reporter* reporter, const char* test) {
    584 #if 0  // doesn't work yet
    585     SK_CONF_SET("images.jpeg.suppressDecoderWarnings", true);
    586     SK_CONF_SET("images.png.suppressDecoderWarnings", true);
    587 #endif
    588     if (reporter->verbose()) {
    589         SkAutoMutexAcquire lock(gMutex);
    590         testName = test;
    591         size_t testNameSize = strlen(test);
    592         SkFILEStream inFile("../../experimental/Intersection/op.htm");
    593         if (inFile.isValid()) {
    594             SkTDArray<char> inData;
    595             inData.setCount((int) inFile.getLength());
    596             size_t inLen = inData.count();
    597             inFile.read(inData.begin(), inLen);
    598             inFile.setPath(nullptr);
    599             char* insert = strstr(inData.begin(), marker);
    600             if (insert) {
    601                 insert += sizeof(marker) - 1;
    602                 const char* numLoc = insert + 4 /* indent spaces */ + testNameSize - 1;
    603                 testNumber = atoi(numLoc) + 1;
    604             }
    605         }
    606     }
    607 }
    608 
    609 void outputProgress(char* ramStr, const char* pathStr, SkPath::FillType pathFillType) {
    610     const char testFunction[] = "testSimplify(path);";
    611     const char* pathPrefix = nullptr;
    612     const char* nameSuffix = nullptr;
    613     if (pathFillType == SkPath::kEvenOdd_FillType) {
    614         pathPrefix = "    path.setFillType(SkPath::kEvenOdd_FillType);\n";
    615         nameSuffix = "x";
    616     }
    617     SkMemoryWStream rRamStream(ramStr, PATH_STR_SIZE);
    618     outputToStream(pathStr, pathPrefix, nameSuffix, testFunction, false, rRamStream);
    619 }
    620 
    621 void outputProgress(char* ramStr, const char* pathStr, SkPathOp op) {
    622     const char testFunction[] = "testOp(path);";
    623     SkASSERT((size_t) op < SK_ARRAY_COUNT(opSuffixes));
    624     const char* nameSuffix = opSuffixes[op];
    625     SkMemoryWStream rRamStream(ramStr, PATH_STR_SIZE);
    626     outputToStream(pathStr, nullptr, nameSuffix, testFunction, true, rRamStream);
    627 }
    628 
    629 void RunTestSet(skiatest::Reporter* reporter, TestDesc tests[], size_t count,
    630                 void (*firstTest)(skiatest::Reporter* , const char* filename),
    631                 void (*skipTest)(skiatest::Reporter* , const char* filename),
    632                 void (*stopTest)(skiatest::Reporter* , const char* filename), bool reverse) {
    633     size_t index;
    634     if (firstTest) {
    635         index = count - 1;
    636         while (index > 0 && tests[index].fun != firstTest) {
    637             --index;
    638         }
    639 #if DEBUG_SHOW_TEST_NAME
    640         SkDebugf("\n<div id=\"%s\">\n", tests[index].str);
    641 #endif
    642         (*tests[index].fun)(reporter, tests[index].str);
    643         if (tests[index].fun == stopTest) {
    644             return;
    645         }
    646     }
    647     index = reverse ? count - 1 : 0;
    648     size_t last = reverse ? 0 : count - 1;
    649     bool foundSkip = !skipTest;
    650     do {
    651         if (tests[index].fun == skipTest) {
    652             foundSkip = true;
    653         }
    654         if (foundSkip && tests[index].fun != firstTest) {
    655     #if DEBUG_SHOW_TEST_NAME
    656             SkDebugf("\n<div id=\"%s\">\n", tests[index].str);
    657     #endif
    658             (*tests[index].fun)(reporter, tests[index].str);
    659         }
    660         if (tests[index].fun == stopTest || index == last) {
    661             break;
    662         }
    663         index += reverse ? -1 : 1;
    664     } while (true);
    665 #if DEBUG_SHOW_TEST_NAME
    666     SkDebugf(
    667             "\n"
    668             "</div>\n"
    669             "\n"
    670             "<script type=\"text/javascript\">\n"
    671             "\n"
    672             "var testDivs = [\n"
    673     );
    674     index = reverse ? count - 1 : 0;
    675     last = reverse ? 0 : count - 1;
    676     foundSkip = !skipTest;
    677     do {
    678         if (tests[index].fun == skipTest) {
    679             foundSkip = true;
    680         }
    681         if (foundSkip && tests[index].fun != firstTest) {
    682             SkDebugf("    %s,\n", tests[index].str);
    683         }
    684         if (tests[index].fun == stopTest || index == last) {
    685             break;
    686         }
    687         index += reverse ? -1 : 1;
    688     } while (true);
    689 #endif
    690 }
    691