SkRect SkImageFilter::computeFastBounds(const SkRect& src) const {
if (0 == this->countInputs()) {
return src;
}
SkRect combinedBounds = this->getInput(0) ? this->getInput(0)->computeFastBounds(src) : src;
for (int i = 1; i < this->countInputs(); i++) {
SkImageFilter* input = this->getInput(i);
if (input) {
combinedBounds.join(input->computeFastBounds(src));
} else {
combinedBounds.join(src);
}
}
return combinedBounds;
}
// doesn't work yet
void comparePathsTiny(const SkPath& one, const SkPath& two) {
const SkRect& bounds1 = one.getBounds();
const SkRect& bounds2 = two.getBounds();
SkRect larger = bounds1;
larger.join(bounds2);
SkBitmap bits;
int bitWidth = SkScalarCeil(larger.width()) + 2;
int bitHeight = SkScalarCeil(larger.height()) + 2;
bits.setConfig(SkBitmap::kA1_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(-bounds2.fLeft + 1, -bounds2.fTop + 1);
canvas.drawPath(two, paint);
canvas.restore();
for (int y = 0; y < bitHeight; ++y) {
uint8_t* addr1 = bits.getAddr1(0, y);
uint8_t* addr2 = bits.getAddr1(bitWidth, y);
for (int x = 0; x < bits.rowBytes(); ++x) {
SkASSERT(addr1[x] == addr2[x]);
}
}
}
void GrDrawTarget::drawPaths(int pathCount, const GrPath** paths,
const SkMatrix* transforms,
SkPath::FillType fill, SkStrokeRec::Style stroke) {
SkASSERT(pathCount > 0);
SkASSERT(NULL != paths);
SkASSERT(NULL != paths[0]);
SkASSERT(this->caps()->pathRenderingSupport());
SkASSERT(!SkPath::IsInverseFillType(fill));
const GrDrawState* drawState = &getDrawState();
SkRect devBounds;
for (int i = 0; i < pathCount; ++i) {
SkRect mappedPathBounds;
transforms[i].mapRect(&mappedPathBounds, paths[i]->getBounds());
devBounds.join(mappedPathBounds);
}
SkMatrix viewM = drawState->getViewMatrix();
viewM.mapRect(&devBounds);
GrDeviceCoordTexture dstCopy;
if (!this->setupDstReadIfNecessary(&dstCopy, &devBounds)) {
return;
}
this->onDrawPaths(pathCount, paths, transforms, fill, stroke,
dstCopy.texture() ? &dstCopy : NULL);
}
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);
}
SkRect FindCanvas::addMatchPos(int index,
const SkPaint& paint, int count, const uint16_t* glyphs,
const SkScalar xPos[], SkScalar /* y */) {
SkRect r;
r.setEmpty();
const SkPoint* temp = reinterpret_cast<const SkPoint*> (xPos);
const SkPoint* points = &temp[index];
int countInBytes = count * sizeof(uint16_t);
SkPaint::FontMetrics fontMetrics;
paint.getFontMetrics(&fontMetrics);
// Need to check each character individually, since the heights may be
// different.
for (int j = 0; j < count; j++) {
SkRect bounds;
bounds.fLeft = points[j].fX;
bounds.fRight = bounds.fLeft +
paint.measureText(&glyphs[j], sizeof(uint16_t), 0);
SkScalar baseline = points[j].fY;
bounds.fTop = baseline + fontMetrics.fAscent;
bounds.fBottom = baseline + fontMetrics.fDescent;
/* Accumulate and then add the resulting rect to mMatches */
r.join(bounds);
}
SkMatrix matrix = getTotalMatrix();
matrix.mapRect(&r);
SkCanvas* canvas = getWorkingCanvas();
int saveCount = canvas->save();
canvas->concat(matrix);
canvas->drawPosText(glyphs, countInBytes, points, paint);
canvas->restoreToCount(saveCount);
return r;
}
SkRect SkDropShadowImageFilter::computeFastBounds(const SkRect& src) const {
SkRect bounds = this->getInput(0) ? this->getInput(0)->computeFastBounds(src) : src;
SkRect shadowBounds = bounds;
shadowBounds.offset(fDx, fDy);
shadowBounds.outset(fSigmaX * 3, fSigmaY * 3);
if (fShadowMode == kDrawShadowAndForeground_ShadowMode) {
bounds.join(shadowBounds);
} else {
bounds = shadowBounds;
}
return bounds;
}
bool drawAsciiPaths(const SkPath& one, const SkPath& two,
bool drawPaths) {
if (!drawPaths) {
return true;
}
if (gShowAsciiPaths) {
showPath(one, "one:");
showPath(two, "two:");
}
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(-bounds2.fLeft + 1 + bitWidth, -bounds2.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 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(const SkPath& one, const SkPath& two,
SkBitmap& bits, SkCanvas* c) {
SkCanvas* canvasPtr = c;
if (!c) {
canvasPtr = new SkCanvas(bits);
}
const SkRect& bounds1 = one.getBounds();
const SkRect& bounds2 = two.getBounds();
SkRect larger = bounds1;
larger.join(bounds2);
int bitWidth = SkScalarCeil(larger.width()) + 2;
int bitHeight = SkScalarCeil(larger.height()) + 2;
if (bits.width() < bitWidth * 2 || bits.height() < bitHeight) {
if (bits.width() >= 200) {
SkDebugf("%s bitWidth=%d bitHeight=%d\n", __FUNCTION__, bitWidth, bitHeight);
}
bits.setConfig(SkBitmap::kARGB_8888_Config, bitWidth * 2, bitHeight);
bits.allocPixels();
canvasPtr->setBitmapDevice(bits);
}
SkCanvas& canvas = *canvasPtr;
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();
int errors = 0;
for (int y = 0; y < bitHeight; ++y) {
uint32_t* addr1 = bits.getAddr32(0, y);
uint32_t* addr2 = bits.getAddr32(bitWidth, y);
for (int x = 0; x < bitWidth; ++x) {
errors += addr1[x] != addr2[x];
}
}
if (!c) {
delete canvasPtr;
}
return errors;
}
SkPDFImageShader* SkPDFImageShader::Create(
SkPDFCanon* canon,
SkScalar dpi,
SkAutoTDelete<SkPDFShader::State>* autoState) {
const SkPDFShader::State& state = **autoState;
state.fImage.lockPixels();
// The image shader pattern cell will be drawn into a separate device
// in pattern cell space (no scaling on the bitmap, though there may be
// translations so that all content is in the device, coordinates > 0).
// Map clip bounds to shader space to ensure the device is large enough
// to handle fake clamping.
SkMatrix finalMatrix = state.fCanvasTransform;
finalMatrix.preConcat(state.fShaderTransform);
SkRect deviceBounds;
deviceBounds.set(state.fBBox);
if (!inverse_transform_bbox(finalMatrix, &deviceBounds)) {
return NULL;
}
const SkBitmap* image = &state.fImage;
SkRect bitmapBounds;
image->getBounds(&bitmapBounds);
// For tiling modes, the bounds should be extended to include the bitmap,
// otherwise the bitmap gets clipped out and the shader is empty and awful.
// For clamp modes, we're only interested in the clip region, whether
// or not the main bitmap is in it.
SkShader::TileMode tileModes[2];
tileModes[0] = state.fImageTileModes[0];
tileModes[1] = state.fImageTileModes[1];
if (tileModes[0] != SkShader::kClamp_TileMode ||
tileModes[1] != SkShader::kClamp_TileMode) {
deviceBounds.join(bitmapBounds);
}
SkISize size = SkISize::Make(SkScalarRoundToInt(deviceBounds.width()),
SkScalarRoundToInt(deviceBounds.height()));
SkAutoTUnref<SkPDFDevice> patternDevice(
SkPDFDevice::CreateUnflipped(size, dpi, canon));
SkCanvas canvas(patternDevice.get());
SkRect patternBBox;
image->getBounds(&patternBBox);
// Translate the canvas so that the bitmap origin is at (0, 0).
canvas.translate(-deviceBounds.left(), -deviceBounds.top());
patternBBox.offset(-deviceBounds.left(), -deviceBounds.top());
// Undo the translation in the final matrix
finalMatrix.preTranslate(deviceBounds.left(), deviceBounds.top());
// If the bitmap is out of bounds (i.e. clamp mode where we only see the
// stretched sides), canvas will clip this out and the extraneous data
// won't be saved to the PDF.
canvas.drawBitmap(*image, 0, 0);
SkScalar width = SkIntToScalar(image->width());
SkScalar height = SkIntToScalar(image->height());
// Tiling is implied. First we handle mirroring.
if (tileModes[0] == SkShader::kMirror_TileMode) {
SkMatrix xMirror;
xMirror.setScale(-1, 1);
xMirror.postTranslate(2 * width, 0);
drawBitmapMatrix(&canvas, *image, xMirror);
patternBBox.fRight += width;
}
if (tileModes[1] == SkShader::kMirror_TileMode) {
SkMatrix yMirror;
yMirror.setScale(SK_Scalar1, -SK_Scalar1);
yMirror.postTranslate(0, 2 * height);
drawBitmapMatrix(&canvas, *image, yMirror);
patternBBox.fBottom += height;
}
if (tileModes[0] == SkShader::kMirror_TileMode &&
tileModes[1] == SkShader::kMirror_TileMode) {
SkMatrix mirror;
mirror.setScale(-1, -1);
mirror.postTranslate(2 * width, 2 * height);
drawBitmapMatrix(&canvas, *image, mirror);
}
// Then handle Clamping, which requires expanding the pattern canvas to
// cover the entire surfaceBBox.
// If both x and y are in clamp mode, we start by filling in the corners.
// (Which are just a rectangles of the corner colors.)
if (tileModes[0] == SkShader::kClamp_TileMode &&
tileModes[1] == SkShader::kClamp_TileMode) {
SkPaint paint;
SkRect rect;
rect = SkRect::MakeLTRB(deviceBounds.left(), deviceBounds.top(), 0, 0);
if (!rect.isEmpty()) {
paint.setColor(image->getColor(0, 0));
canvas.drawRect(rect, paint);
}
rect = SkRect::MakeLTRB(width, deviceBounds.top(),
deviceBounds.right(), 0);
if (!rect.isEmpty()) {
paint.setColor(image->getColor(image->width() - 1, 0));
canvas.drawRect(rect, paint);
}
rect = SkRect::MakeLTRB(width, height,
deviceBounds.right(), deviceBounds.bottom());
if (!rect.isEmpty()) {
paint.setColor(image->getColor(image->width() - 1,
image->height() - 1));
canvas.drawRect(rect, paint);
}
rect = SkRect::MakeLTRB(deviceBounds.left(), height,
0, deviceBounds.bottom());
if (!rect.isEmpty()) {
paint.setColor(image->getColor(0, image->height() - 1));
canvas.drawRect(rect, paint);
}
}
// Then expand the left, right, top, then bottom.
if (tileModes[0] == SkShader::kClamp_TileMode) {
SkIRect subset = SkIRect::MakeXYWH(0, 0, 1, image->height());
if (deviceBounds.left() < 0) {
SkBitmap left;
SkAssertResult(image->extractSubset(&left, subset));
SkMatrix leftMatrix;
leftMatrix.setScale(-deviceBounds.left(), 1);
leftMatrix.postTranslate(deviceBounds.left(), 0);
drawBitmapMatrix(&canvas, left, leftMatrix);
if (tileModes[1] == SkShader::kMirror_TileMode) {
leftMatrix.postScale(SK_Scalar1, -SK_Scalar1);
leftMatrix.postTranslate(0, 2 * height);
drawBitmapMatrix(&canvas, left, leftMatrix);
}
patternBBox.fLeft = 0;
}
if (deviceBounds.right() > width) {
SkBitmap right;
subset.offset(image->width() - 1, 0);
SkAssertResult(image->extractSubset(&right, subset));
SkMatrix rightMatrix;
rightMatrix.setScale(deviceBounds.right() - width, 1);
rightMatrix.postTranslate(width, 0);
drawBitmapMatrix(&canvas, right, rightMatrix);
if (tileModes[1] == SkShader::kMirror_TileMode) {
rightMatrix.postScale(SK_Scalar1, -SK_Scalar1);
rightMatrix.postTranslate(0, 2 * height);
drawBitmapMatrix(&canvas, right, rightMatrix);
}
patternBBox.fRight = deviceBounds.width();
}
}
if (tileModes[1] == SkShader::kClamp_TileMode) {
SkIRect subset = SkIRect::MakeXYWH(0, 0, image->width(), 1);
if (deviceBounds.top() < 0) {
SkBitmap top;
SkAssertResult(image->extractSubset(&top, subset));
SkMatrix topMatrix;
topMatrix.setScale(SK_Scalar1, -deviceBounds.top());
topMatrix.postTranslate(0, deviceBounds.top());
drawBitmapMatrix(&canvas, top, topMatrix);
if (tileModes[0] == SkShader::kMirror_TileMode) {
topMatrix.postScale(-1, 1);
topMatrix.postTranslate(2 * width, 0);
drawBitmapMatrix(&canvas, top, topMatrix);
}
patternBBox.fTop = 0;
}
if (deviceBounds.bottom() > height) {
SkBitmap bottom;
subset.offset(0, image->height() - 1);
SkAssertResult(image->extractSubset(&bottom, subset));
SkMatrix bottomMatrix;
bottomMatrix.setScale(SK_Scalar1, deviceBounds.bottom() - height);
bottomMatrix.postTranslate(0, height);
drawBitmapMatrix(&canvas, bottom, bottomMatrix);
if (tileModes[0] == SkShader::kMirror_TileMode) {
bottomMatrix.postScale(-1, 1);
bottomMatrix.postTranslate(2 * width, 0);
drawBitmapMatrix(&canvas, bottom, bottomMatrix);
}
patternBBox.fBottom = deviceBounds.height();
}
}
// Put the canvas into the pattern stream (fContent).
SkAutoTDelete<SkStreamAsset> content(patternDevice->content());
SkPDFImageShader* imageShader =
SkNEW_ARGS(SkPDFImageShader, (autoState->detach()));
imageShader->setData(content.get());
SkAutoTUnref<SkPDFDict> resourceDict(
patternDevice->createResourceDict());
populate_tiling_pattern_dict(imageShader, patternBBox,
resourceDict.get(), finalMatrix);
imageShader->fShaderState->fImage.unlockPixels();
canon->addImageShader(imageShader);
return imageShader;
}
void GrDrawTarget::drawBatches(GrBatchFlushState* flushState) {
// Draw all the generated geometry.
SkRandom random;
GrRenderTarget* currentRT = nullptr;
SkAutoTDelete<GrGpuCommandBuffer> commandBuffer;
SkRect bounds = SkRect::MakeEmpty();
for (int i = 0; i < fBatches.count(); ++i) {
if (!fBatches[i]) {
continue;
}
if (fBatches[i]->renderTarget() != currentRT) {
if (commandBuffer) {
commandBuffer->end();
if (bounds.intersect(0, 0,
SkIntToScalar(currentRT->width()),
SkIntToScalar(currentRT->height()))) {
SkIRect iBounds;
bounds.roundOut(&iBounds);
commandBuffer->submit(iBounds);
}
commandBuffer.reset();
}
bounds.setEmpty();
currentRT = fBatches[i]->renderTarget();
if (currentRT) {
static const GrGpuCommandBuffer::LoadAndStoreInfo kBasicLoadStoreInfo
{ GrGpuCommandBuffer::LoadOp::kLoad,GrGpuCommandBuffer::StoreOp::kStore,
GrColor_ILLEGAL };
commandBuffer.reset(fGpu->createCommandBuffer(currentRT,
kBasicLoadStoreInfo, // Color
kBasicLoadStoreInfo)); // Stencil
}
flushState->setCommandBuffer(commandBuffer);
}
if (commandBuffer) {
bounds.join(fBatches[i]->bounds());
}
if (fDrawBatchBounds) {
const SkRect& batchBounds = fBatches[i]->bounds();
SkIRect iBatchBounds;
batchBounds.roundOut(&iBatchBounds);
// In multi-draw buffer all the batches use the same render target and we won't need to
// get the batchs bounds.
if (GrRenderTarget* rt = fBatches[i]->renderTarget()) {
fGpu->drawDebugWireRect(rt, iBatchBounds, 0xFF000000 | random.nextU());
}
}
fBatches[i]->draw(flushState);
}
if (commandBuffer) {
commandBuffer->end();
if (bounds.intersect(0, 0,
SkIntToScalar(currentRT->width()),
SkIntToScalar(currentRT->height()))) {
SkIRect iBounds;
bounds.roundOut(&iBounds);
commandBuffer->submit(iBounds);
}
flushState->setCommandBuffer(nullptr);
}
fGpu->finishDrawTarget();
}
GrDrawVerticesOp::GrDrawVerticesOp(const Helper::MakeArgs& helperArgs, GrColor color,
sk_sp<SkVertices> vertices, const SkVertices::Bone bones[],
int boneCount, GrPrimitiveType primitiveType, GrAAType aaType,
sk_sp<GrColorSpaceXform> colorSpaceXform,
const SkMatrix& viewMatrix)
: INHERITED(ClassID())
, fHelper(helperArgs, aaType)
, fPrimitiveType(primitiveType)
, fColorSpaceXform(std::move(colorSpaceXform)) {
SkASSERT(vertices);
fVertexCount = vertices->vertexCount();
fIndexCount = vertices->indexCount();
fColorArrayType = vertices->hasColors() ? ColorArrayType::kSkColor
: ColorArrayType::kPremulGrColor;
Mesh& mesh = fMeshes.push_back();
mesh.fColor = color;
mesh.fViewMatrix = viewMatrix;
mesh.fVertices = std::move(vertices);
mesh.fIgnoreTexCoords = false;
mesh.fIgnoreColors = false;
mesh.fIgnoreBones = false;
if (mesh.fVertices->hasBones() && bones) {
// Perform the transformations on the CPU instead of the GPU.
mesh.fVertices = mesh.fVertices->applyBones(bones, boneCount);
} else {
if (bones && boneCount > 1) {
// NOTE: This should never be used. All bone transforms are being done on the CPU
// instead of the GPU.
// Copy the bone data.
fBones.assign(bones, bones + boneCount);
}
}
fFlags = 0;
if (mesh.hasPerVertexColors()) {
fFlags |= kRequiresPerVertexColors_Flag;
}
if (mesh.hasExplicitLocalCoords()) {
fFlags |= kAnyMeshHasExplicitLocalCoords_Flag;
}
if (mesh.hasBones()) {
fFlags |= kHasBones_Flag;
}
// Special case for meshes with a world transform but no bone weights.
// These will be considered normal vertices draws without bones.
if (!mesh.fVertices->hasBones() && boneCount == 1) {
SkMatrix worldTransform;
worldTransform.setAffine(bones[0].values);
mesh.fViewMatrix.preConcat(worldTransform);
}
IsZeroArea zeroArea;
if (GrIsPrimTypeLines(primitiveType) || GrPrimitiveType::kPoints == primitiveType) {
zeroArea = IsZeroArea::kYes;
} else {
zeroArea = IsZeroArea::kNo;
}
if (this->hasBones()) {
// We don't know the bounds if there are deformations involved, so attempt to calculate
// the maximum possible.
SkRect bounds = SkRect::MakeEmpty();
const SkRect originalBounds = bones[0].mapRect(mesh.fVertices->bounds());
for (int i = 1; i < boneCount; i++) {
const SkVertices::Bone& matrix = bones[i];
bounds.join(matrix.mapRect(originalBounds));
}
this->setTransformedBounds(bounds,
mesh.fViewMatrix,
HasAABloat::kNo,
zeroArea);
} else {
this->setTransformedBounds(mesh.fVertices->bounds(),
mesh.fViewMatrix,
HasAABloat::kNo,
zeroArea);
}
}
virtual void onDraw(SkCanvas* canvas) {
SkPath path;
path.moveTo(SkIntToScalar(0), SkIntToScalar(50));
path.quadTo(SkIntToScalar(0), SkIntToScalar(0), SkIntToScalar(50), SkIntToScalar(0));
path.lineTo(SkIntToScalar(175), SkIntToScalar(0));
path.quadTo(SkIntToScalar(200), SkIntToScalar(0), SkIntToScalar(200), SkIntToScalar(25));
path.lineTo(SkIntToScalar(200), SkIntToScalar(150));
path.quadTo(SkIntToScalar(200), SkIntToScalar(200), SkIntToScalar(150), SkIntToScalar(200));
path.lineTo(SkIntToScalar(0), SkIntToScalar(200));
path.close();
path.moveTo(SkIntToScalar(50), SkIntToScalar(50));
path.lineTo(SkIntToScalar(150), SkIntToScalar(50));
path.lineTo(SkIntToScalar(150), SkIntToScalar(125));
path.quadTo(SkIntToScalar(150), SkIntToScalar(150), SkIntToScalar(125), SkIntToScalar(150));
path.lineTo(SkIntToScalar(50), SkIntToScalar(150));
path.close();
if (fInvertDraw) {
path.setFillType(SkPath::kInverseEvenOdd_FillType);
} else {
path.setFillType(SkPath::kEvenOdd_FillType);
}
SkPaint pathPaint;
pathPaint.setAntiAlias(true);
pathPaint.setColor(gPathColor);
SkPath clipA;
clipA.moveTo(SkIntToScalar(10), SkIntToScalar(20));
clipA.lineTo(SkIntToScalar(165), SkIntToScalar(22));
clipA.lineTo(SkIntToScalar(70), SkIntToScalar(105));
clipA.lineTo(SkIntToScalar(165), SkIntToScalar(177));
clipA.lineTo(SkIntToScalar(-5), SkIntToScalar(180));
clipA.close();
SkPath clipB;
clipB.moveTo(SkIntToScalar(40), SkIntToScalar(10));
clipB.lineTo(SkIntToScalar(190), SkIntToScalar(15));
clipB.lineTo(SkIntToScalar(195), SkIntToScalar(190));
clipB.lineTo(SkIntToScalar(40), SkIntToScalar(185));
clipB.lineTo(SkIntToScalar(155), SkIntToScalar(100));
clipB.close();
SkPaint paint;
paint.setAntiAlias(true);
sk_tool_utils::set_portable_typeface(&paint);
paint.setTextSize(SkIntToScalar(20));
static const struct {
SkRegion::Op fOp;
const char* fName;
} gOps[] = { //extra spaces in names for measureText
{SkRegion::kIntersect_Op, "Isect "},
{SkRegion::kDifference_Op, "Diff " },
{SkRegion::kUnion_Op, "Union "},
{SkRegion::kXOR_Op, "Xor " },
{SkRegion::kReverseDifference_Op, "RDiff "}
};
canvas->translate(SkIntToScalar(20), SkIntToScalar(20));
canvas->scale(3 * SK_Scalar1 / 4, 3 * SK_Scalar1 / 4);
if (fDoSaveLayer) {
// We want the layer to appear symmetric relative to actual
// device boundaries so we need to "undo" the effect of the
// scale and translate
SkRect bounds = SkRect::MakeLTRB(
4.0f/3.0f * -20,
4.0f/3.0f * -20,
4.0f/3.0f * (this->getISize().fWidth - 20),
4.0f/3.0f * (this->getISize().fHeight - 20));
bounds.inset(SkIntToScalar(100), SkIntToScalar(100));
SkPaint boundPaint;
boundPaint.setColor(SK_ColorRED);
boundPaint.setStyle(SkPaint::kStroke_Style);
canvas->drawRect(bounds, boundPaint);
canvas->saveLayer(&bounds, NULL);
}
for (int invBits = 0; invBits < 4; ++invBits) {
canvas->save();
for (size_t op = 0; op < SK_ARRAY_COUNT(gOps); ++op) {
this->drawHairlines(canvas, path, clipA, clipB);
bool doInvA = SkToBool(invBits & 1);
bool doInvB = SkToBool(invBits & 2);
canvas->save();
// set clip
clipA.setFillType(doInvA ? SkPath::kInverseEvenOdd_FillType :
SkPath::kEvenOdd_FillType);
clipB.setFillType(doInvB ? SkPath::kInverseEvenOdd_FillType :
SkPath::kEvenOdd_FillType);
canvas->clipPath(clipA, SkRegion::kIntersect_Op, fDoAAClip);
canvas->clipPath(clipB, gOps[op].fOp, fDoAAClip);
// In the inverse case we need to prevent the draw from covering the whole
// canvas.
if (fInvertDraw) {
SkRect rectClip = clipA.getBounds();
rectClip.join(path.getBounds());
rectClip.join(path.getBounds());
rectClip.outset(5, 5);
canvas->clipRect(rectClip);
}
// draw path clipped
canvas->drawPath(path, pathPaint);
canvas->restore();
SkScalar txtX = SkIntToScalar(45);
paint.setColor(gClipAColor);
const char* aTxt = doInvA ? "InvA " : "A ";
canvas->drawText(aTxt, strlen(aTxt), txtX, SkIntToScalar(220), paint);
txtX += paint.measureText(aTxt, strlen(aTxt));
paint.setColor(SK_ColorBLACK);
canvas->drawText(gOps[op].fName, strlen(gOps[op].fName),
txtX, SkIntToScalar(220), paint);
txtX += paint.measureText(gOps[op].fName, strlen(gOps[op].fName));
paint.setColor(gClipBColor);
const char* bTxt = doInvB ? "InvB " : "B ";
canvas->drawText(bTxt, strlen(bTxt), txtX, SkIntToScalar(220), paint);
canvas->translate(SkIntToScalar(250),0);
}
canvas->restore();
canvas->translate(0, SkIntToScalar(250));
}
if (fDoSaveLayer) {
canvas->restore();
}
}
static int pathsDrawTheSame(const SkPath& one, const SkPath& two,
SkBitmap& bits, SkPath& scaledOne, SkPath& scaledTwo, int& error2x2) {
const int bitWidth = 64;
const int bitHeight = 64;
if (bits.width() == 0) {
bits.setConfig(SkBitmap::kARGB_8888_Config, bitWidth * 2, bitHeight);
bits.allocPixels();
}
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;
SkMatrix scale;
scale.reset();
scale.preScale(hScale, vScale);
one.transform(scale, &scaledOne);
two.transform(scale, &scaledTwo);
const SkRect& bounds1 = scaledOne.getBounds();
SkCanvas canvas(bits);
canvas.drawColor(SK_ColorWHITE);
SkPaint paint;
canvas.save();
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;
}
