blob: 71631c110a6a4227e73b91cef073a9d46d4595ea [file] [log] [blame]
/*
* 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 "SkMatrix.h"
#include "SkPaint.h"
#include "SkStream.h"
#include "SkThreadPool.h"
#ifdef SK_BUILD_FOR_MAC
#include <sys/sysctl.h>
#endif
static const char marker[] =
"</div>\n"
"\n"
"<script type=\"text/javascript\">\n"
"\n"
"var testDivs = [\n";
static const char* opStrs[] = {
"kDifference_PathOp",
"kIntersect_PathOp",
"kUnion_PathOp",
"kXor_PathOp",
"kReverseDifference_PathOp",
};
static const char* opSuffixes[] = {
"d",
"i",
"u",
"o",
};
static bool gShowPath = false;
static bool gComparePaths = true;
static bool gComparePathsAssert = true;
static bool gPathStrAssert = true;
static void showPathContours(SkPath::Iter& iter) {
uint8_t verb;
SkPoint pts[4];
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
switch (verb) {
case SkPath::kMove_Verb:
SkDebugf("path.moveTo(%1.9g,%1.9g);\n", pts[0].fX, pts[0].fY);
continue;
case SkPath::kLine_Verb:
SkDebugf("path.lineTo(%1.9g,%1.9g);\n", pts[1].fX, pts[1].fY);
break;
case SkPath::kQuad_Verb:
SkDebugf("path.quadTo(%1.9g,%1.9g, %1.9g,%1.9g);\n",
pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY);
break;
case SkPath::kCubic_Verb:
SkDebugf("path.cubicTo(%1.9g,%1.9g, %1.9g,%1.9g, %1.9g,%1.9g);\n",
pts[1].fX, pts[1].fY, pts[2].fX, pts[2].fY, pts[3].fX, pts[3].fY);
break;
case SkPath::kClose_Verb:
SkDebugf("path.close();\n");
break;
default:
SkDEBUGFAIL("bad verb");
return;
}
}
}
void showPath(const SkPath& path, const char* str) {
SkDebugf("%s\n", !str ? "original:" : str);
showPath(path);
}
static const char* fillTypeStr[] = {
"kWinding_FillType",
"kEvenOdd_FillType",
"kInverseWinding_FillType",
"kInverseEvenOdd_FillType"
};
void showPath(const SkPath& path) {
SkPath::Iter iter(path, true);
#define SUPPORT_RECT_CONTOUR_DETECTION 0
#if SUPPORT_RECT_CONTOUR_DETECTION
int rectCount = path.isRectContours() ? path.rectContours(NULL, NULL) : 0;
if (rectCount > 0) {
SkTDArray<SkRect> rects;
SkTDArray<SkPath::Direction> directions;
rects.setCount(rectCount);
directions.setCount(rectCount);
path.rectContours(rects.begin(), directions.begin());
for (int contour = 0; contour < rectCount; ++contour) {
const SkRect& rect = rects[contour];
SkDebugf("path.addRect(%1.9g, %1.9g, %1.9g, %1.9g, %s);\n", rect.fLeft, rect.fTop,
rect.fRight, rect.fBottom, directions[contour] == SkPath::kCCW_Direction
? "SkPath::kCCW_Direction" : "SkPath::kCW_Direction");
}
return;
}
#endif
SkPath::FillType fillType = path.getFillType();
SkASSERT(fillType >= SkPath::kWinding_FillType && fillType <= SkPath::kInverseEvenOdd_FillType);
SkDebugf("path.setFillType(%s);\n", fillTypeStr[fillType]);
iter.setPath(path, true);
showPathContours(iter);
}
void showPathData(const SkPath& path) {
SkPath::Iter iter(path, true);
uint8_t verb;
SkPoint pts[4];
while ((verb = iter.next(pts)) != SkPath::kDone_Verb) {
switch (verb) {
case SkPath::kMove_Verb:
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);
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);
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);
break;
case SkPath::kClose_Verb:
break;
default:
SkDEBUGFAIL("bad verb");
return;
}
}
}
void showOp(const SkPathOp op) {
switch (op) {
case kDifference_PathOp:
SkDebugf("op difference\n");
break;
case kIntersect_PathOp:
SkDebugf("op intersect\n");
break;
case kUnion_PathOp:
SkDebugf("op union\n");
break;
case kXOR_PathOp:
SkDebugf("op xor\n");
break;
case kReverseDifference_PathOp:
SkDebugf("op reverse difference\n");
break;
default:
SkASSERT(0);
}
}
static void showPath(const SkPath& path, const char* str, const SkMatrix& scale) {
SkPath scaled;
SkMatrix inverse;
bool success = scale.invert(&inverse);
if (!success) {
SkASSERT(0);
}
path.transform(inverse, &scaled);
showPath(scaled, str);
}
#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);
}
static int pathsDrawTheSame(SkBitmap& bits, const SkPath& scaledOne, const SkPath& scaledTwo,
int& error2x2) {
if (bits.width() == 0) {
bits.setConfig(SkBitmap::kARGB_8888_Config, bitWidth * 2, bitHeight);
bits.allocPixels();
}
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++;
}
}
}
if (errors2 >= 6 || errors > 160) {
SkDebugf("%s errors2=%d errors=%d\n", __FUNCTION__, errors2, 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 = SkScalarCeil(larger.width()) + 2;
if (bitWidth * 2 + 1 >= (int) sizeof(out)) {
return false;
}
int bitHeight = SkScalarCeil(larger.height()) + 2;
if (bitHeight >= (int) sizeof(out)) {
return false;
}
bits.setConfig(SkBitmap::kARGB_8888_Config, bitWidth * 2, bitHeight);
bits.allocPixels();
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;
}
static void showSimplifiedPath(const SkPath& one, const SkPath& two,
const SkPath& scaledOne, const SkPath& scaledTwo) {
showPath(one, "original:");
showPath(two, "simplified:");
drawAsciiPaths(scaledOne, scaledTwo, true);
}
static int comparePaths(skiatest::Reporter* reporter, const SkPath& one, const SkPath& two,
SkBitmap& bitmap) {
int errors2x2;
SkPath scaledOne, scaledTwo;
int errors = pathsDrawTheSame(one, two, bitmap, scaledOne, scaledTwo, errors2x2);
if (errors2x2 == 0) {
return 0;
}
const int MAX_ERRORS = 9;
if (errors2x2 == MAX_ERRORS || errors2x2 == MAX_ERRORS - 1) {
showSimplifiedPath(one, two, scaledOne, scaledTwo);
}
if (errors2x2 > MAX_ERRORS && gComparePathsAssert) {
SkDebugf("%s errors=%d\n", __FUNCTION__, errors);
showSimplifiedPath(one, two, scaledOne, scaledTwo);
REPORTER_ASSERT(reporter, 0);
}
return errors2x2 > MAX_ERRORS ? errors2x2 : 0;
}
static void showPathOpPath(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));
showPath(a, "minuend:");
SkDebugf("op: %s\n", opStrs[shapeOp]);
showPath(b, "subtrahend:");
// the region often isn't very helpful since it approximates curves with a lot of line-tos
if (0) showPath(scaledOne, "region:", scale);
showPath(two, "op result:");
drawAsciiPaths(scaledOne, scaledTwo, true);
}
static int comparePaths(skiatest::Reporter* reporter, 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) {
int errors2x2;
int errors = pathsDrawTheSame(bitmap, scaledOne, scaledTwo, errors2x2);
if (errors2x2 == 0) {
if (gShowPath) {
showPathOpPath(one, two, a, b, scaledOne, scaledTwo, shapeOp, scale);
}
return 0;
}
const int MAX_ERRORS = 8;
if (gShowPath || errors2x2 == MAX_ERRORS || errors2x2 == MAX_ERRORS - 1) {
showPathOpPath(one, two, a, b, scaledOne, scaledTwo, shapeOp, scale);
}
if (errors2x2 > MAX_ERRORS && gComparePathsAssert) {
SkDebugf("%s errors=%d\n", __FUNCTION__, errors);
showPathOpPath(one, two, a, b, scaledOne, scaledTwo, shapeOp, scale);
REPORTER_ASSERT(reporter, 0);
}
return errors2x2 > MAX_ERRORS ? errors2x2 : 0;
}
static int testNumber;
static const char* testName;
static void writeTestName(const char* nameSuffix, SkMemoryWStream& outFile) {
outFile.writeText(testName);
outFile.writeDecAsText(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) {
outFile.writeText("<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");
outFile.writeText("static void ");
writeTestName(nameSuffix, outFile);
outFile.writeText("() {\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");
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");
outFile.flush();
}
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);
if (gShowPath) {
showPath(path);
}
if (!Simplify(path, &out)) {
SkDebugf("%s did not expect failure\n", __FUNCTION__);
REPORTER_ASSERT(state.fReporter, 0);
return false;
}
if (!gComparePaths) {
return true;
}
int result = comparePaths(state.fReporter, path, out, *state.fBitmap);
if (result && gPathStrAssert) {
char temp[8192];
sk_bzero(temp, sizeof(temp));
SkMemoryWStream stream(temp, sizeof(temp));
const char* pathPrefix = NULL;
const char* nameSuffix = NULL;
if (fillType == SkPath::kEvenOdd_FillType) {
pathPrefix = " path.setFillType(SkPath::kEvenOdd_FillType);\n";
nameSuffix = "x";
}
const char testFunction[] = "testSimplifyx(path);";
outputToStream(pathStr, pathPrefix, nameSuffix, testFunction, false, stream);
SkDebugf(temp);
REPORTER_ASSERT(state.fReporter, 0);
}
state.fReporter->bumpTestCount();
return result == 0;
}
bool testSimplify(skiatest::Reporter* reporter, const SkPath& path) {
#if DEBUG_SHOW_TEST_NAME
showPathData(path);
#endif
SkPath out;
if (!Simplify(path, &out)) {
SkDebugf("%s did not expect failure\n", __FUNCTION__);
REPORTER_ASSERT(reporter, 0);
return false;
}
SkBitmap bitmap;
int result = comparePaths(reporter, path, out, bitmap);
if (result && gPathStrAssert) {
REPORTER_ASSERT(reporter, 0);
}
reporter->bumpTestCount();
return result == 0;
}
bool testPathOp(skiatest::Reporter* reporter, const SkPath& a, const SkPath& b,
const SkPathOp shapeOp) {
#if DEBUG_SHOW_TEST_NAME
showPathData(a);
showOp(shapeOp);
showPathData(b);
#endif
SkPath out;
if (!Op(a, b, shapeOp, &out) ) {
SkDebugf("%s did not expect failure\n", __FUNCTION__);
REPORTER_ASSERT(reporter, 0);
return false;
}
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, pathOut, scaledPathOut, out, scaledOut, bitmap, a, b,
shapeOp, scale);
if (result && gPathStrAssert) {
REPORTER_ASSERT(reporter, 0);
}
reporter->bumpTestCount();
return result == 0;
}
int initializeTests(skiatest::Reporter* reporter, const char* test) {
#ifdef SK_DEBUG
gDebugMaxWindSum = 4;
gDebugMaxWindValue = 4;
#endif
testName = test;
size_t testNameSize = strlen(test);
SkFILEStream inFile("../../experimental/Intersection/op.htm");
if (inFile.isValid()) {
SkTDArray<char> inData;
inData.setCount(inFile.getLength());
size_t inLen = inData.count();
inFile.read(inData.begin(), inLen);
inFile.setPath(NULL);
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;
}
}
return reporter->allowThreaded() ? SkThreadPool::kThreadPerCore : 0;
}
void outputProgress(char* ramStr, const char* pathStr, SkPath::FillType pathFillType) {
const char testFunction[] = "testSimplify(path);";
const char* pathPrefix = NULL;
const char* nameSuffix = NULL;
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, NULL, nameSuffix, testFunction, true, rRamStream);
}
void RunTestSet(skiatest::Reporter* reporter, TestDesc tests[], size_t count,
void (*firstTest)(skiatest::Reporter* ),
void (*stopTest)(skiatest::Reporter* ), bool reverse) {
size_t index;
if (firstTest) {
index = count - 1;
while (index > 0 && tests[index].fun != firstTest) {
--index;
}
#if DEBUG_SHOW_TEST_NAME
SkDebugf("<div id=\"%s\">\n", tests[index].str);
SkDebugf(" %s [%s]\n", __FUNCTION__, tests[index].str);
#endif
(*tests[index].fun)(reporter);
}
index = reverse ? count - 1 : 0;
size_t last = reverse ? 0 : count - 1;
do {
if (tests[index].fun != firstTest) {
#if DEBUG_SHOW_TEST_NAME
SkDebugf("<div id=\"%s\">\n", tests[index].str);
SkDebugf(" %s [%s]\n", __FUNCTION__, tests[index].str);
#endif
(*tests[index].fun)(reporter);
}
if (tests[index].fun == stopTest) {
SkDebugf("lastTest\n");
}
if (index == last) {
break;
}
index += reverse ? -1 : 1;
} while (true);
}