void SkDeferredCanvas::flush_check(SkRect* bounds, const SkPaint* paint, unsigned flags) {
if (paint) {
if (paint->getShader() || paint->getImageFilter()) {
flags |= kNoTranslate_Flag | kNoScale_Flag;
}
// TODO: replace these with code to enlarge the bounds conservatively?
if (paint->getStyle() != SkPaint::kFill_Style || paint->getMaskFilter() ||
paint->getImageFilter() || paint->getPathEffect())
{
flags |= kNoCull_Flag | kNoScale_Flag | kNoClip_Flag;
}
if (paint->getLooper()) {
// to be conservative, we disable both, since embedded layers could have shaders
// or strokes etc.
flags |= kNoTranslate_Flag | kNoCull_Flag | kNoScale_Flag;
}
}
bool canClip = !(flags & kNoClip_Flag);
bool canTranslate = !(flags & kNoTranslate_Flag);
bool canCull = !(flags & kNoCull_Flag);
bool canScale = !(flags & kNoScale_Flag);
int i;
for (i = fRecs.count() - 1; i >= 0; --i) {
const Rec& rec = fRecs[i];
switch (rec.fType) {
case kSave_Type:
// continue to the next rec
break;
case kClipRect_Type:
if (!canCull) {
goto STOP;
}
if (canClip) {
if (!bounds->intersect(rec.fData.fBounds)) {
bounds->setEmpty();
return;
}
// continue to the next rec
} else {
if (!rec.fData.fBounds.contains(*bounds)) {
goto STOP;
}
// continue to the next rec
}
break;
case kTrans_Type:
if (canTranslate) {
bounds->offset(rec.fData.fTranslate.x(), rec.fData.fTranslate.y());
// continue to the next rec
} else {
goto STOP;
}
break;
case kScaleTrans_Type:
if (canScale) {
SkMatrix m;
rec.getConcat(&m);
m.mapRectScaleTranslate(bounds, *bounds);
} else {
goto STOP;
}
break;
}
}
STOP:
this->flush_le(i);
}
void SkGpuDevice::drawTextureProducerImpl(GrTextureProducer* producer,
const SkRect& clippedSrcRect,
const SkRect& clippedDstRect,
SkCanvas::SrcRectConstraint constraint,
const SkMatrix& viewMatrix,
const SkMatrix& srcToDstMatrix,
const GrClip& clip,
const SkPaint& paint) {
// Specifying the texture coords as local coordinates is an attempt to enable more GrDrawOp
// combining by not baking anything about the srcRect, dstRect, or viewMatrix, into the texture
// FP. In the future this should be an opaque optimization enabled by the combination of
// GrDrawOp/GP and FP.
const SkMaskFilter* mf = paint.getMaskFilter();
// The shader expects proper local coords, so we can't replace local coords with texture coords
// if the shader will be used. If we have a mask filter we will change the underlying geometry
// that is rendered.
bool canUseTextureCoordsAsLocalCoords = !use_shader(producer->isAlphaOnly(), paint) && !mf;
bool doBicubic;
GrSamplerParams::FilterMode fm =
GrSkFilterQualityToGrFilterMode(paint.getFilterQuality(), viewMatrix, srcToDstMatrix,
&doBicubic);
const GrSamplerParams::FilterMode* filterMode = doBicubic ? nullptr : &fm;
GrTextureProducer::FilterConstraint constraintMode;
if (SkCanvas::kFast_SrcRectConstraint == constraint) {
constraintMode = GrTextureAdjuster::kNo_FilterConstraint;
} else {
constraintMode = GrTextureAdjuster::kYes_FilterConstraint;
}
// If we have to outset for AA then we will generate texture coords outside the src rect. The
// same happens for any mask filter that extends the bounds rendered in the dst.
// This is conservative as a mask filter does not have to expand the bounds rendered.
bool coordsAllInsideSrcRect = !paint.isAntiAlias() && !mf;
// Check for optimization to drop the src rect constraint when on bilerp.
if (filterMode && GrSamplerParams::kBilerp_FilterMode == *filterMode &&
GrTextureAdjuster::kYes_FilterConstraint == constraintMode && coordsAllInsideSrcRect) {
SkMatrix combinedMatrix;
combinedMatrix.setConcat(viewMatrix, srcToDstMatrix);
if (can_ignore_bilerp_constraint(*producer, clippedSrcRect, combinedMatrix,
fRenderTargetContext->isUnifiedMultisampled())) {
constraintMode = GrTextureAdjuster::kNo_FilterConstraint;
}
}
const SkMatrix* textureMatrix;
SkMatrix tempMatrix;
if (canUseTextureCoordsAsLocalCoords) {
textureMatrix = &SkMatrix::I();
} else {
if (!srcToDstMatrix.invert(&tempMatrix)) {
return;
}
textureMatrix = &tempMatrix;
}
sk_sp<GrFragmentProcessor> fp(producer->createFragmentProcessor(
*textureMatrix, clippedSrcRect, constraintMode, coordsAllInsideSrcRect, filterMode,
fRenderTargetContext->getColorSpace()));
if (!fp) {
return;
}
GrPaint grPaint;
if (!SkPaintToGrPaintWithTexture(fContext.get(), fRenderTargetContext.get(), paint, viewMatrix,
fp, producer->isAlphaOnly(), &grPaint)) {
return;
}
GrAA aa = GrBoolToAA(paint.isAntiAlias());
if (canUseTextureCoordsAsLocalCoords) {
fRenderTargetContext->fillRectToRect(clip, std::move(grPaint), aa, viewMatrix,
clippedDstRect, clippedSrcRect);
return;
}
if (!mf) {
fRenderTargetContext->drawRect(clip, std::move(grPaint), aa, viewMatrix, clippedDstRect);
return;
}
// First see if we can do the draw + mask filter direct to the dst.
if (viewMatrix.isScaleTranslate()) {
SkRect devClippedDstRect;
viewMatrix.mapRectScaleTranslate(&devClippedDstRect, clippedDstRect);
SkStrokeRec rec(SkStrokeRec::kFill_InitStyle);
if (mf->directFilterRRectMaskGPU(fContext.get(),
fRenderTargetContext.get(),
std::move(grPaint),
clip,
viewMatrix,
rec,
SkRRect::MakeRect(clippedDstRect),
SkRRect::MakeRect(devClippedDstRect))) {
return;
}
}
SkPath rectPath;
rectPath.addRect(clippedDstRect);
rectPath.setIsVolatile(true);
GrBlurUtils::drawPathWithMaskFilter(this->context(), fRenderTargetContext.get(), this->clip(),
rectPath, std::move(grPaint), aa, viewMatrix, mf,
GrStyle::SimpleFill(), true);
}