bool GrPath::isEqualTo(const SkPath& path, const GrStyle& style) const {
// Since this is only called in debug we don't care about performance.
int cnt0 = GrStyle::KeySize(fStyle, GrStyle::Apply::kPathEffectAndStrokeRec);
int cnt1 = GrStyle::KeySize(style, GrStyle::Apply::kPathEffectAndStrokeRec);
if (cnt0 < 0 || cnt1 < 0 || cnt0 != cnt1) {
return false;
}
if (cnt0) {
SkAutoTArray<uint32_t> key0(cnt0);
SkAutoTArray<uint32_t> key1(cnt0);
write_style_key(key0.get(), fStyle);
write_style_key(key1.get(), style);
if (0 != memcmp(key0.get(), key1.get(), cnt0)) {
return false;
}
}
return fSkPath == path;
}
void GrPath::ComputeKey(const GrShape& shape, GrUniqueKey* key, bool* outIsVolatile) {
int geoCnt = shape.unstyledKeySize();
int styleCnt = GrStyle::KeySize(shape.style(), GrStyle::Apply::kPathEffectAndStrokeRec);
// This should only fail for an arbitrary path effect, and we should not have gotten
// here with anything other than a dash path effect.
SkASSERT(styleCnt >= 0);
if (geoCnt < 0) {
*outIsVolatile = true;
return;
}
static const GrUniqueKey::Domain kGeneralPathDomain = GrUniqueKey::GenerateDomain();
GrUniqueKey::Builder builder(key, kGeneralPathDomain, geoCnt + styleCnt, "Path");
shape.writeUnstyledKey(&builder[0]);
if (styleCnt) {
write_style_key(&builder[geoCnt], shape.style());
}
*outIsVolatile = false;
}
const GrStencilAndCoverTextContext::TextBlob&
GrStencilAndCoverTextContext::findOrCreateTextBlob(const SkTextBlob* skBlob,
const SkPaint& skPaint) {
// The font-related parameters are baked into the text blob and will override this skPaint, so
// the only remaining properties that can affect a TextBlob are the ones related to stroke.
if (SkPaint::kFill_Style == skPaint.getStyle()) { // Fast path.
if (TextBlob** found = fBlobIdCache.find(skBlob->uniqueID())) {
fLRUList.remove(*found);
fLRUList.addToTail(*found);
return **found;
}
TextBlob* blob = new TextBlob(skBlob->uniqueID(), skBlob, skPaint);
this->purgeToFit(*blob);
fBlobIdCache.set(skBlob->uniqueID(), blob);
fLRUList.addToTail(blob);
fCacheSize += blob->cpuMemorySize();
return *blob;
} else {
GrStyle style(skPaint);
SkSTArray<4, uint32_t, true> key;
key.reset(1 + style_key_cnt(style));
key[0] = skBlob->uniqueID();
write_style_key(&key[1], style);
if (TextBlob** found = fBlobKeyCache.find(key)) {
fLRUList.remove(*found);
fLRUList.addToTail(*found);
return **found;
}
TextBlob* blob = new TextBlob(key, skBlob, skPaint);
this->purgeToFit(*blob);
fBlobKeyCache.set(blob);
fLRUList.addToTail(blob);
fCacheSize += blob->cpuMemorySize();
return *blob;
}
}
GrStencilAndCoverTextContext::TextRun::TextRun(const SkPaint& fontAndStroke)
: fStyle(fontAndStroke)
, fFont(fontAndStroke)
, fTotalGlyphCount(0)
, fFallbackGlyphCount(0)
, fDetachedGlyphCache(nullptr)
, fLastDrawnGlyphsID(SK_InvalidUniqueID) {
SkASSERT(fFont.getTextSize() > 0);
SkASSERT(!fStyle.hasNonDashPathEffect()); // Arbitrary path effects not supported.
SkASSERT(!fStyle.isSimpleHairline()); // Hairlines are not supported.
// Setting to "fill" ensures that no strokes get baked into font outlines. (We use the GPU path
// rendering API for stroking).
fFont.setStyle(SkPaint::kFill_Style);
if (fFont.isFakeBoldText() && fStyle.isSimpleFill()) {
const SkStrokeRec& stroke = fStyle.strokeRec();
// Instead of letting fake bold get baked into the glyph outlines, do it with GPU stroke.
SkScalar fakeBoldScale = SkScalarInterpFunc(fFont.getTextSize(),
kStdFakeBoldInterpKeys,
kStdFakeBoldInterpValues,
kStdFakeBoldInterpLength);
SkScalar extra = fFont.getTextSize() * fakeBoldScale;
SkStrokeRec strokeRec(SkStrokeRec::kFill_InitStyle);
strokeRec.setStrokeStyle(stroke.needToApply() ? stroke.getWidth() + extra : extra,
true /*strokeAndFill*/);
fStyle = GrStyle(strokeRec, fStyle.refPathEffect());
fFont.setFakeBoldText(false);
}
if (!fFont.getPathEffect() && !fStyle.isDashed()) {
const SkStrokeRec& stroke = fStyle.strokeRec();
// We can draw the glyphs from canonically sized paths.
fTextRatio = fFont.getTextSize() / SkPaint::kCanonicalTextSizeForPaths;
fTextInverseRatio = SkPaint::kCanonicalTextSizeForPaths / fFont.getTextSize();
// Compensate for the glyphs being scaled by fTextRatio.
if (!fStyle.isSimpleFill()) {
SkStrokeRec strokeRec(SkStrokeRec::kFill_InitStyle);
strokeRec.setStrokeStyle(stroke.getWidth() / fTextRatio,
SkStrokeRec::kStrokeAndFill_Style == stroke.getStyle());
fStyle = GrStyle(strokeRec, fStyle.refPathEffect());
}
fFont.setLinearText(true);
fFont.setLCDRenderText(false);
fFont.setAutohinted(false);
fFont.setHinting(SkPaint::kNo_Hinting);
fFont.setSubpixelText(true);
fFont.setTextSize(SkIntToScalar(SkPaint::kCanonicalTextSizeForPaths));
fUsingRawGlyphPaths = SK_Scalar1 == fFont.getTextScaleX() &&
0 == fFont.getTextSkewX() &&
!fFont.isFakeBoldText() &&
!fFont.isVerticalText();
} else {
fTextRatio = fTextInverseRatio = 1.0f;
fUsingRawGlyphPaths = false;
}
// Generate the key that will be used to cache the GPU glyph path objects.
if (fUsingRawGlyphPaths && fStyle.isSimpleFill()) {
static const GrUniqueKey::Domain kRawFillPathGlyphDomain = GrUniqueKey::GenerateDomain();
const SkTypeface* typeface = fFont.getTypeface();
GrUniqueKey::Builder builder(&fGlyphPathsKey, kRawFillPathGlyphDomain, 1);
reinterpret_cast<uint32_t&>(builder[0]) = typeface ? typeface->uniqueID() : 0;
} else {
static const GrUniqueKey::Domain kPathGlyphDomain = GrUniqueKey::GenerateDomain();
int styleDataCount = GrStyle::KeySize(fStyle, GrStyle::Apply::kPathEffectAndStrokeRec);
// Key should be valid since we opted out of drawing arbitrary path effects.
SkASSERT(styleDataCount >= 0);
if (fUsingRawGlyphPaths) {
const SkTypeface* typeface = fFont.getTypeface();
GrUniqueKey::Builder builder(&fGlyphPathsKey, kPathGlyphDomain, 2 + styleDataCount);
reinterpret_cast<uint32_t&>(builder[0]) = typeface ? typeface->uniqueID() : 0;
reinterpret_cast<uint32_t&>(builder[1]) = styleDataCount;
if (styleDataCount) {
write_style_key(&builder[2], fStyle);
}
} else {
SkGlyphCache* glyphCache = this->getGlyphCache();
const SkTypeface* typeface = glyphCache->getScalerContext()->getTypeface();
const SkDescriptor* desc = &glyphCache->getDescriptor();
int descDataCount = (desc->getLength() + 3) / 4;
GrUniqueKey::Builder builder(&fGlyphPathsKey, kPathGlyphDomain,
2 + styleDataCount + descDataCount);
reinterpret_cast<uint32_t&>(builder[0]) = typeface ? typeface->uniqueID() : 0;
reinterpret_cast<uint32_t&>(builder[1]) = styleDataCount | (descDataCount << 16);
if (styleDataCount) {
write_style_key(&builder[2], fStyle);
}
memcpy(&builder[2 + styleDataCount], desc, desc->getLength());
}
}
}
