/**
* Draw a single path element of the clip stack into the accumulation bitmap
*/
void GrSWMaskHelper::drawShape(const GrShape& shape, SkRegion::Op op, bool antiAlias,
uint8_t alpha) {
SkPaint paint;
paint.setPathEffect(sk_ref_sp(shape.style().pathEffect()));
shape.style().strokeRec().applyToPaint(&paint);
paint.setAntiAlias(antiAlias);
SkPath path;
shape.asPath(&path);
if (SkRegion::kReplace_Op == op && 0xFF == alpha) {
SkASSERT(0xFF == paint.getAlpha());
fDraw.drawPathCoverage(path, paint);
} else {
paint.setXfermodeMode(op_to_mode(op));
paint.setColor(SkColorSetARGB(alpha, alpha, alpha, alpha));
fDraw.drawPath(path, paint);
}
}
/**
* Draw a single path element of the clip stack into the accumulation bitmap
*/
void GrSWMaskHelper::drawShape(const GrShape& shape, const SkMatrix& matrix, SkRegion::Op op,
GrAA aa, uint8_t alpha) {
SkPaint paint;
paint.setPathEffect(shape.style().refPathEffect());
shape.style().strokeRec().applyToPaint(&paint);
paint.setAntiAlias(GrAA::kYes == aa);
SkMatrix translatedMatrix = matrix;
translatedMatrix.postTranslate(fTranslate.fX, fTranslate.fY);
fDraw.fMatrix = &translatedMatrix;
SkPath path;
shape.asPath(&path);
if (SkRegion::kReplace_Op == op && 0xFF == alpha) {
SkASSERT(0xFF == paint.getAlpha());
fDraw.drawPathCoverage(path, paint);
} else {
paint.setBlendMode(op_to_mode(op));
paint.setColor(SkColorSetARGB(alpha, alpha, alpha, alpha));
fDraw.drawPath(path, paint);
}
};
static inline bool single_pass_shape(const GrShape& shape) {
#if STENCIL_OFF
return true;
#else
// Inverse fill is always two pass.
if (shape.inverseFilled()) {
return false;
}
// This path renderer only accepts simple fill paths or stroke paths that are either hairline
// or have a stroke width small enough to treat as hairline. Hairline paths are always single
// pass. Filled paths are single pass if they're convex.
if (shape.style().isSimpleFill()) {
return shape.knownToBeConvex();
}
return true;
#endif
}
bool GrDefaultPathRenderer::internalDrawPath(GrDrawContext* drawContext,
const GrPaint& paint,
const GrUserStencilSettings& userStencilSettings,
const GrClip& clip,
const SkMatrix& viewMatrix,
const GrShape& shape,
bool stencilOnly) {
SkPath path;
shape.asPath(&path);
SkScalar hairlineCoverage;
uint8_t newCoverage = 0xff;
bool isHairline = false;
if (IsStrokeHairlineOrEquivalent(shape.style(), viewMatrix, &hairlineCoverage)) {
newCoverage = SkScalarRoundToInt(hairlineCoverage * 0xff);
isHairline = true;
} else {
SkASSERT(shape.style().isSimpleFill());
}
int passCount = 0;
const GrUserStencilSettings* passes[3];
GrDrawFace drawFace[3];
bool reverse = false;
bool lastPassIsBounds;
if (isHairline) {
passCount = 1;
if (stencilOnly) {
passes[0] = &gDirectToStencil;
} else {
passes[0] = &userStencilSettings;
}
lastPassIsBounds = false;
drawFace[0] = GrDrawFace::kBoth;
} else {
if (single_pass_shape(shape)) {
passCount = 1;
if (stencilOnly) {
passes[0] = &gDirectToStencil;
} else {
passes[0] = &userStencilSettings;
}
drawFace[0] = GrDrawFace::kBoth;
lastPassIsBounds = false;
} else {
switch (path.getFillType()) {
case SkPath::kInverseEvenOdd_FillType:
reverse = true;
// fallthrough
case SkPath::kEvenOdd_FillType:
passes[0] = &gEOStencilPass;
if (stencilOnly) {
passCount = 1;
lastPassIsBounds = false;
} else {
passCount = 2;
lastPassIsBounds = true;
if (reverse) {
passes[1] = &gInvEOColorPass;
} else {
passes[1] = &gEOColorPass;
}
}
drawFace[0] = drawFace[1] = GrDrawFace::kBoth;
break;
case SkPath::kInverseWinding_FillType:
reverse = true;
// fallthrough
case SkPath::kWinding_FillType:
if (fSeparateStencil) {
if (fStencilWrapOps) {
passes[0] = &gWindStencilSeparateWithWrap;
} else {
passes[0] = &gWindStencilSeparateNoWrap;
}
passCount = 2;
drawFace[0] = GrDrawFace::kBoth;
} else {
if (fStencilWrapOps) {
passes[0] = &gWindSingleStencilWithWrapInc;
passes[1] = &gWindSingleStencilWithWrapDec;
} else {
passes[0] = &gWindSingleStencilNoWrapInc;
passes[1] = &gWindSingleStencilNoWrapDec;
}
// which is cw and which is ccw is arbitrary.
drawFace[0] = GrDrawFace::kCW;
drawFace[1] = GrDrawFace::kCCW;
passCount = 3;
}
if (stencilOnly) {
lastPassIsBounds = false;
--passCount;
} else {
lastPassIsBounds = true;
drawFace[passCount-1] = GrDrawFace::kBoth;
if (reverse) {
passes[passCount-1] = &gInvWindColorPass;
} else {
passes[passCount-1] = &gWindColorPass;
}
}
break;
default:
SkDEBUGFAIL("Unknown path fFill!");
return false;
}
}
}
SkScalar tol = GrPathUtils::kDefaultTolerance;
SkScalar srcSpaceTol = GrPathUtils::scaleToleranceToSrc(tol, viewMatrix, path.getBounds());
SkRect devBounds;
GetPathDevBounds(path, drawContext->width(), drawContext->height(), viewMatrix, &devBounds);
for (int p = 0; p < passCount; ++p) {
if (lastPassIsBounds && (p == passCount-1)) {
SkRect bounds;
SkMatrix localMatrix = SkMatrix::I();
if (reverse) {
// draw over the dev bounds (which will be the whole dst surface for inv fill).
bounds = devBounds;
SkMatrix vmi;
// mapRect through persp matrix may not be correct
if (!viewMatrix.hasPerspective() && viewMatrix.invert(&vmi)) {
vmi.mapRect(&bounds);
} else {
if (!viewMatrix.invert(&localMatrix)) {
return false;
}
}
} else {
bounds = path.getBounds();
}
const SkMatrix& viewM = (reverse && viewMatrix.hasPerspective()) ? SkMatrix::I() :
viewMatrix;
SkAutoTUnref<GrDrawBatch> batch(
GrRectBatchFactory::CreateNonAAFill(paint.getColor(), viewM, bounds, nullptr,
&localMatrix));
SkASSERT(GrDrawFace::kBoth == drawFace[p]);
GrPipelineBuilder pipelineBuilder(paint, drawContext->mustUseHWAA(paint));
pipelineBuilder.setDrawFace(drawFace[p]);
pipelineBuilder.setUserStencil(passes[p]);
drawContext->drawBatch(pipelineBuilder, clip, batch);
} else {
SkAutoTUnref<GrDrawBatch> batch(new DefaultPathBatch(paint.getColor(), path,
srcSpaceTol,
newCoverage, viewMatrix,
isHairline, devBounds));
GrPipelineBuilder pipelineBuilder(paint, drawContext->mustUseHWAA(paint));
pipelineBuilder.setDrawFace(drawFace[p]);
pipelineBuilder.setUserStencil(passes[p]);
if (passCount > 1) {
pipelineBuilder.setDisableColorXPFactory();
}
drawContext->drawBatch(pipelineBuilder, clip, batch);
}
}
return true;
}
bool GrDefaultPathRenderer::internalDrawPath(GrRenderTargetContext* renderTargetContext,
GrPaint&& paint,
GrAAType aaType,
const GrUserStencilSettings& userStencilSettings,
const GrClip& clip,
const SkMatrix& viewMatrix,
const GrShape& shape,
bool stencilOnly) {
auto context = renderTargetContext->surfPriv().getContext();
SkASSERT(GrAAType::kCoverage != aaType);
SkPath path;
shape.asPath(&path);
SkScalar hairlineCoverage;
uint8_t newCoverage = 0xff;
bool isHairline = false;
if (IsStrokeHairlineOrEquivalent(shape.style(), viewMatrix, &hairlineCoverage)) {
newCoverage = SkScalarRoundToInt(hairlineCoverage * 0xff);
isHairline = true;
} else {
SkASSERT(shape.style().isSimpleFill());
}
int passCount = 0;
const GrUserStencilSettings* passes[2];
bool reverse = false;
bool lastPassIsBounds;
if (isHairline) {
passCount = 1;
if (stencilOnly) {
passes[0] = &gDirectToStencil;
} else {
passes[0] = &userStencilSettings;
}
lastPassIsBounds = false;
} else {
if (single_pass_shape(shape)) {
passCount = 1;
if (stencilOnly) {
passes[0] = &gDirectToStencil;
} else {
passes[0] = &userStencilSettings;
}
lastPassIsBounds = false;
} else {
switch (path.getFillType()) {
case SkPath::kInverseEvenOdd_FillType:
reverse = true;
// fallthrough
case SkPath::kEvenOdd_FillType:
passes[0] = &gEOStencilPass;
if (stencilOnly) {
passCount = 1;
lastPassIsBounds = false;
} else {
passCount = 2;
lastPassIsBounds = true;
if (reverse) {
passes[1] = &gInvEOColorPass;
} else {
passes[1] = &gEOColorPass;
}
}
break;
case SkPath::kInverseWinding_FillType:
reverse = true;
// fallthrough
case SkPath::kWinding_FillType:
passes[0] = &gWindStencilPass;
passCount = 2;
if (stencilOnly) {
lastPassIsBounds = false;
--passCount;
} else {
lastPassIsBounds = true;
if (reverse) {
passes[passCount-1] = &gInvWindColorPass;
} else {
passes[passCount-1] = &gWindColorPass;
}
}
break;
default:
SkDEBUGFAIL("Unknown path fFill!");
return false;
}
}
}
SkScalar tol = GrPathUtils::kDefaultTolerance;
SkScalar srcSpaceTol = GrPathUtils::scaleToleranceToSrc(tol, viewMatrix, path.getBounds());
SkRect devBounds;
GetPathDevBounds(path,
renderTargetContext->asRenderTargetProxy()->worstCaseWidth(),
renderTargetContext->asRenderTargetProxy()->worstCaseHeight(),
viewMatrix, &devBounds);
for (int p = 0; p < passCount; ++p) {
if (lastPassIsBounds && (p == passCount-1)) {
SkRect bounds;
SkMatrix localMatrix = SkMatrix::I();
if (reverse) {
// draw over the dev bounds (which will be the whole dst surface for inv fill).
bounds = devBounds;
SkMatrix vmi;
// mapRect through persp matrix may not be correct
if (!viewMatrix.hasPerspective() && viewMatrix.invert(&vmi)) {
vmi.mapRect(&bounds);
} else {
if (!viewMatrix.invert(&localMatrix)) {
return false;
}
}
} else {
bounds = path.getBounds();
}
const SkMatrix& viewM = (reverse && viewMatrix.hasPerspective()) ? SkMatrix::I() :
viewMatrix;
// This is a non-coverage aa rect op since we assert aaType != kCoverage at the start
assert_alive(paint);
renderTargetContext->priv().stencilRect(clip, passes[p], std::move(paint),
GrAA(aaType == GrAAType::kMSAA), viewM, bounds, &localMatrix);
} else {
bool stencilPass = stencilOnly || passCount > 1;
std::unique_ptr<GrDrawOp> op;
if (stencilPass) {
GrPaint stencilPaint;
stencilPaint.setXPFactory(GrDisableColorXPFactory::Get());
op = DefaultPathOp::Make(context, std::move(stencilPaint), path, srcSpaceTol,
newCoverage, viewMatrix, isHairline, aaType, devBounds,
passes[p]);
} else {
assert_alive(paint);
op = DefaultPathOp::Make(context, std::move(paint), path, srcSpaceTol, newCoverage,
viewMatrix, isHairline, aaType, devBounds, passes[p]);
}
renderTargetContext->addDrawOp(clip, std::move(op));
}
}
return true;
}