Use SkGlyphRunListIterator in gpu

Instead of using the text blob through the stack start
using the glyph run list.

This CL is similar to a portion of https://skia-review.googlesource.com/c/skia/+/137224
which was reverted.

Change-Id: I1f0619bd2d13523f9af1a68ab27fb26abd086add
Reviewed-on: https://skia-review.googlesource.com/141543
Commit-Queue: Herb Derby <herb@google.com>
Reviewed-by: Jim Van Verth <jvanverth@google.com>
This commit is contained in:
Herb Derby 2018-07-16 11:19:04 -04:00 committed by Skia Commit-Bot
parent 297c3c8e85
commit cddab25218
9 changed files with 117 additions and 163 deletions

View File

@ -45,7 +45,7 @@ SkGlyphRun::SkGlyphRun(SkPaint&& runPaint,
SkSpan<const uint32_t> clusters)
: fUniqueGlyphIDIndices{denseIndices}
, fPositions{positions}
, fTemporaryShuntGlyphIDs{glyphIDs}
, fGlyphIDs{glyphIDs}
, fUniqueGlyphIDs{uniqueGlyphIDs}
, fText{text}
, fClusters{clusters}
@ -66,10 +66,10 @@ void SkGlyphRun::eachGlyphToGlyphRun(SkGlyphRun::PerGlyph perGlyph) {
SkSpan<const uint32_t>{}
};
auto runSize = fTemporaryShuntGlyphIDs.size();
auto runSize = fGlyphIDs.size();
auto runPaint = run.mutablePaint();
for (size_t i = 0; i < runSize; i++) {
glyphID = fTemporaryShuntGlyphIDs[i];
glyphID = fGlyphIDs[i];
point = fPositions[i];
perGlyph(&run, runPaint);
}
@ -80,21 +80,21 @@ void SkGlyphRun::temporaryShuntToDrawPosText(SkBaseDevice* device, SkPoint origi
auto pos = (const SkScalar*) this->positions().data();
if (!fTemporaryShuntGlyphIDs.empty()) {
if (!fGlyphIDs.empty()) {
device->drawPosText(
fTemporaryShuntGlyphIDs.data(), fTemporaryShuntGlyphIDs.size() * sizeof(SkGlyphID),
fGlyphIDs.data(), fGlyphIDs.size() * sizeof(SkGlyphID),
pos, 2, origin, fRunPaint);
}
}
void SkGlyphRun::temporaryShuntToCallback(TemporaryShuntCallback callback) {
auto bytes = (const char *)fTemporaryShuntGlyphIDs.data();
auto bytes = (const char *)fGlyphIDs.data();
auto pos = (const SkScalar*) this->positions().data();
callback(fTemporaryShuntGlyphIDs.size(), bytes, pos);
callback(fGlyphIDs.size(), bytes, pos);
}
void SkGlyphRun::filloutGlyphsAndPositions(SkGlyphID* glyphIDs, SkPoint* positions) {
memcpy(glyphIDs, fTemporaryShuntGlyphIDs.data(), fTemporaryShuntGlyphIDs.size_bytes());
memcpy(glyphIDs, fGlyphIDs.data(), fGlyphIDs.size_bytes());
memcpy(positions, fPositions.data(), fPositions.size_bytes());
}
@ -111,7 +111,7 @@ SkGlyphRunList::SkGlyphRunList(
, fGlyphRuns{glyphRunList} { }
SkGlyphRunList::SkGlyphRunList(SkGlyphRun* glyphRun)
: fOriginalPaint{nullptr}
: fOriginalPaint{&glyphRun->paint()}
, fOriginalTextBlob{nullptr}
, fOrigin{SkPoint::Make(0, 0)}
, fGlyphRuns{SkSpan<SkGlyphRun>{glyphRun, 1}} {}

View File

@ -16,6 +16,8 @@
#include "SkMask.h"
#include "SkPath.h"
#include "SkPoint.h"
#include "SkTemplates.h"
#include "SkTextBlob.h"
#include "SkTypes.h"
class SkBaseDevice;
@ -67,10 +69,13 @@ public:
void temporaryShuntToCallback(TemporaryShuntCallback callback);
void filloutGlyphsAndPositions(SkGlyphID* glyphIDs, SkPoint* positions);
size_t runSize() const { return fTemporaryShuntGlyphIDs.size(); }
size_t runSize() const { return fGlyphIDs.size(); }
SkSpan<const SkPoint> positions() const { return fPositions; }
SkSpan<const SkGlyphID> shuntGlyphsIDs() const { return fGlyphIDs; }
const SkPaint& paint() const { return fRunPaint; }
SkPaint* mutablePaint() { return &fRunPaint; }
SkSpan<const uint32_t> clusters() const { return fClusters; }
SkSpan<const char> text() const { return fText; }
private:
//
@ -78,8 +83,8 @@ private:
//
const SkSpan<const SkPoint> fPositions;
// This is temporary while converting from the old per glyph code to the bulk code.
const SkSpan<const SkGlyphID> fTemporaryShuntGlyphIDs;
// The unique glyphs from fTemporaryShuntGlyphIDs.
const SkSpan<const SkGlyphID> fGlyphIDs;
// The unique glyphs from fGlyphIDs.
const SkSpan<const SkGlyphID> fUniqueGlyphIDs;
// Original text from SkTextBlob if present. Will be empty of not present.
const SkSpan<const char> fText;
@ -139,6 +144,30 @@ public:
};
class SkGlyphRunListIterator {
public:
explicit SkGlyphRunListIterator(SkGlyphRunList* list) : fList{*list} {}
bool done() const { return fIndex == fList.size(); }
void next() { fIndex += 1;}
uint32_t glyphCount() const { return fList[fIndex].runSize(); }
const uint16_t* glyphs() const { return fList[fIndex].shuntGlyphsIDs().data(); }
const SkScalar* pos() const { return (const SkScalar*)fList[fIndex].positions().data(); }
const SkPoint& offset() const { return fZero; }
void applyFontToPaint(SkPaint* paint) const { *paint = fList[fIndex].paint(); }
SkTextBlob::GlyphPositioning positioning() const { return SkTextBlob::kFull_Positioning; }
const uint32_t* clusters() const { return fList[fIndex].clusters().data(); }
uint32_t textSize() const { return fList[fIndex].text().size(); }
const char* text() const { return fList[fIndex].text().data(); }
bool isLCD() const { return fList[fIndex].paint().isLCDRenderText(); }
private:
static constexpr SkPoint fZero{0, 0};
size_t fIndex{0};
SkGlyphRunList& fList;
};
class SkGlyphIDSet {
public:
SkSpan<const SkGlyphID> uniquifyGlyphIDs(

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@ -239,17 +239,17 @@ void GrRenderTargetContext::drawPosText(const GrClip& clip, const SkPaint& paint
clipBounds);
}
void GrRenderTargetContext::drawTextBlob(const GrClip& clip, const SkPaint& paint,
const SkMatrix& viewMatrix, const SkTextBlob* blob,
SkScalar x, SkScalar y, const SkIRect& clipBounds) {
void GrRenderTargetContext::drawGlyphRunList(
const GrClip& clip, const SkMatrix& viewMatrix,
SkGlyphRunList* blob, const SkIRect& clipBounds) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawTextBlob", fContext);
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawGlyphRunList", fContext);
GrTextContext* atlasTextContext = this->drawingManager()->getTextContext();
atlasTextContext->drawTextBlob(fContext, fTextTarget.get(), clip, paint, viewMatrix,
fSurfaceProps, blob, x, y, clipBounds);
atlasTextContext->drawGlyphRunList(fContext, fTextTarget.get(), clip, viewMatrix,
fSurfaceProps, blob, clipBounds);
}
void GrRenderTargetContext::discard() {

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@ -37,6 +37,7 @@ class GrStyle;
class GrTextureProxy;
struct GrUserStencilSettings;
struct SkDrawShadowRec;
class SkGlyphRunList;
struct SkIPoint;
struct SkIRect;
class SkLatticeIter;
@ -67,9 +68,9 @@ public:
const char text[], size_t byteLength, const SkScalar pos[],
int scalarsPerPosition, const SkPoint& offset,
const SkIRect& clipBounds);
virtual void drawTextBlob(const GrClip&, const SkPaint&,
const SkMatrix& viewMatrix, const SkTextBlob*,
SkScalar x, SkScalar y, const SkIRect& clipBounds);
virtual void drawGlyphRunList(const GrClip&,
const SkMatrix& viewMatrix, SkGlyphRunList*,
const SkIRect& clipBounds);
/**
* Provides a perfomance hint that the render target's contents are allowed

View File

@ -1637,30 +1637,13 @@ void SkGpuDevice::drawPosText(const void* text, size_t byteLength,
this->devClipBounds());
}
void SkGpuDevice::drawTextBlob(const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkPaint& paint) {
ASSERT_SINGLE_OWNER
GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice", "drawTextBlob", fContext.get());
SkDEBUGCODE(this->validate();)
fRenderTargetContext->drawTextBlob(this->clip(), paint, this->ctm(), blob, x, y,
this->devClipBounds());
}
void SkGpuDevice::drawGlyphRunList(SkGlyphRunList* glyphRunList) {
ASSERT_SINGLE_OWNER
GR_CREATE_TRACE_MARKER_CONTEXT("SkGpuDevice", "drawGlyphRunList", fContext.get());
SkDEBUGCODE(this->validate();)
auto blob = glyphRunList->blob();
if (blob == nullptr) {
glyphRunList->temporaryShuntToDrawPosText(this, SkPoint::Make(0, 0));
} else {
auto origin = glyphRunList->origin();
auto paint = glyphRunList->paint();
this->drawTextBlob(blob, origin.x(), origin.y(), paint);
}
fRenderTargetContext->drawGlyphRunList(
this->clip(), this->ctm(), glyphRunList, this->devClipBounds());
}
///////////////////////////////////////////////////////////////////////////////

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@ -89,7 +89,6 @@ public:
const SkPaint& paint) override;
void drawPosText(const void* text, size_t len, const SkScalar pos[],
int scalarsPerPos, const SkPoint& offset, const SkPaint&) override;
void drawTextBlob(const SkTextBlob*, SkScalar x, SkScalar y, const SkPaint& paint) override;
void drawGlyphRunList(SkGlyphRunList* glyphRunList) override;
void drawVertices(const SkVertices*, const SkMatrix bones[], int boneCount, SkBlendMode,
const SkPaint&) override;

View File

@ -56,6 +56,21 @@ public:
return cacheBlob;
}
sk_sp<GrTextBlob> makeBlob(SkGlyphRunList* glyphRunList) {
return GrTextBlob::Make(glyphRunList->totalGlyphCount(), glyphRunList->size());
}
sk_sp<GrTextBlob> makeCachedBlob(SkGlyphRunList* glyphRunList,
const GrTextBlob::Key& key,
const SkMaskFilterBase::BlurRec& blurRec,
const SkPaint& paint) {
sk_sp<GrTextBlob> cacheBlob(makeBlob(glyphRunList));
cacheBlob->setupKey(key, blurRec, paint);
this->add(cacheBlob);
glyphRunList->temporaryShuntBlobNotifyAddedToCache(fUniqueID);
return cacheBlob;
}
sk_sp<GrTextBlob> find(const GrTextBlob::Key& key) const {
const auto* idEntry = fBlobIDCache.find(key.fUniqueID);
return idEntry ? idEntry->find(key) : nullptr;

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@ -84,56 +84,48 @@ SkScalerContextFlags GrTextContext::ComputeScalerContextFlags(
}
}
// TODO if this function ever shows up in profiling, then we can compute this value when the
// textblob is being built and cache it. However, for the time being textblobs mostly only have 1
// run so this is not a big deal to compute here.
bool GrTextContext::HasLCD(const SkTextBlob* blob) {
SkTextBlobRunIterator it(blob);
for (; !it.done(); it.next()) {
if (it.isLCD()) {
return true;
}
}
return false;
}
void GrTextContext::drawGlyphRunList(
GrContext* context, GrTextUtils::Target* target, const GrClip& clip,
const SkMatrix& viewMatrix, const SkSurfaceProps& props, SkGlyphRunList* glyphRunList,
const SkIRect& clipBounds) {
SkPoint origin = glyphRunList->origin();
// Get the first paint to use as the key paint.
const SkPaint& skPaint = glyphRunList->paint();
void GrTextContext::drawTextBlob(GrContext* context, GrTextUtils::Target* target,
const GrClip& clip, const SkPaint& skPaint,
const SkMatrix& viewMatrix, const SkSurfaceProps& props,
const SkTextBlob* blob, SkScalar x, SkScalar y,
const SkIRect& clipBounds) {
// If we have been abandoned, then don't draw
if (context->abandoned()) {
return;
}
sk_sp<GrTextBlob> cacheBlob;
SkMaskFilterBase::BlurRec blurRec;
GrTextBlob::Key key;
// It might be worth caching these things, but its not clear at this time
// TODO for animated mask filters, this will fill up our cache. We need a safeguard here
const SkMaskFilter* mf = skPaint.getMaskFilter();
bool canCache = !(skPaint.getPathEffect() || (mf && !as_MFB(mf)->asABlur(&blurRec)));
bool canCache = glyphRunList->canCache() && !(skPaint.getPathEffect() ||
(mf && !as_MFB(mf)->asABlur(&blurRec)));
SkScalerContextFlags scalerContextFlags = ComputeScalerContextFlags(target->colorSpaceInfo());
auto glyphCache = context->contextPriv().getGlyphCache();
GrTextBlobCache* textBlobCache = context->contextPriv().getTextBlobCache();
sk_sp<GrTextBlob> cacheBlob;
GrTextBlob::Key key;
if (canCache) {
bool hasLCD = HasLCD(blob);
bool hasLCD = glyphRunList->anyRunsLCD();
// We canonicalize all non-lcd draws to use kUnknown_SkPixelGeometry
SkPixelGeometry pixelGeometry = hasLCD ? props.pixelGeometry() :
kUnknown_SkPixelGeometry;
kUnknown_SkPixelGeometry;
// TODO we want to figure out a way to be able to use the canonical color on LCD text,
// see the note on ComputeCanonicalColor above. We pick a dummy value for LCD text to
// ensure we always match the same key
GrColor canonicalColor = hasLCD ? SK_ColorTRANSPARENT :
ComputeCanonicalColor(skPaint, hasLCD);
ComputeCanonicalColor(skPaint, hasLCD);
key.fPixelGeometry = pixelGeometry;
key.fUniqueID = blob->uniqueID();
key.fUniqueID = glyphRunList->uniqueID();
key.fStyle = skPaint.getStyle();
key.fHasBlur = SkToBool(mf);
key.fCanonicalColor = canonicalColor;
@ -143,139 +135,77 @@ void GrTextContext::drawTextBlob(GrContext* context, GrTextUtils::Target* target
GrTextUtils::Paint paint(&skPaint, &target->colorSpaceInfo());
if (cacheBlob) {
if (cacheBlob->mustRegenerate(paint, blurRec, viewMatrix, x, y)) {
if (cacheBlob->mustRegenerate(paint, blurRec, viewMatrix, origin.x(), origin.y())) {
// We have to remake the blob because changes may invalidate our masks.
// TODO we could probably get away reuse most of the time if the pointer is unique,
// but we'd have to clear the subrun information
textBlobCache->remove(cacheBlob.get());
cacheBlob = textBlobCache->makeCachedBlob(blob, key, blurRec, skPaint);
this->regenerateTextBlob(cacheBlob.get(), glyphCache,
cacheBlob = textBlobCache->makeCachedBlob(glyphRunList, key, blurRec, skPaint);
this->regenerateGlyphRunList(cacheBlob.get(), glyphCache,
*context->contextPriv().caps()->shaderCaps(), paint,
scalerContextFlags, viewMatrix, props, blob, x, y);
scalerContextFlags, viewMatrix, props, glyphRunList);
} else {
textBlobCache->makeMRU(cacheBlob.get());
if (CACHE_SANITY_CHECK) {
int glyphCount = 0;
int runCount = 0;
GrTextBlobCache::BlobGlyphCount(&glyphCount, &runCount, blob);
int glyphCount = glyphRunList->totalGlyphCount();
int runCount = glyphRunList->runCount();
sk_sp<GrTextBlob> sanityBlob(textBlobCache->makeBlob(glyphCount, runCount));
sanityBlob->setupKey(key, blurRec, skPaint);
this->regenerateTextBlob(
this->regenerateGlyphRunList(
sanityBlob.get(), glyphCache, *context->contextPriv().caps()->shaderCaps(),
paint, scalerContextFlags, viewMatrix, props, blob, x, y);
paint, scalerContextFlags, viewMatrix, props, glyphRunList);
GrTextBlob::AssertEqual(*sanityBlob, *cacheBlob);
}
}
} else {
if (canCache) {
cacheBlob = textBlobCache->makeCachedBlob(blob, key, blurRec, skPaint);
cacheBlob = textBlobCache->makeCachedBlob(glyphRunList, key, blurRec, skPaint);
} else {
cacheBlob = textBlobCache->makeBlob(blob);
cacheBlob = textBlobCache->makeBlob(glyphRunList);
}
this->regenerateTextBlob(cacheBlob.get(), glyphCache,
this->regenerateGlyphRunList(cacheBlob.get(), glyphCache,
*context->contextPriv().caps()->shaderCaps(), paint,
scalerContextFlags, viewMatrix, props, blob, x, y);
scalerContextFlags, viewMatrix, props, glyphRunList);
}
cacheBlob->flush(target, props, fDistanceAdjustTable.get(), paint,
clip, viewMatrix, clipBounds, x, y);
clip, viewMatrix, clipBounds, origin.x(), origin.y());
}
void GrTextContext::regenerateTextBlob(GrTextBlob* cacheBlob,
void GrTextContext::regenerateGlyphRunList(GrTextBlob* cacheBlob,
GrGlyphCache* glyphCache,
const GrShaderCaps& shaderCaps,
const GrTextUtils::Paint& paint,
SkScalerContextFlags scalerContextFlags,
const SkMatrix& viewMatrix,
const SkSurfaceProps& props, const SkTextBlob* blob,
SkScalar x, SkScalar y) const {
cacheBlob->initReusableBlob(paint.luminanceColor(), viewMatrix, x, y);
const SkSurfaceProps& props,
SkGlyphRunList* glyphRunList) const {
SkPoint origin = glyphRunList->origin();
cacheBlob->initReusableBlob(paint.luminanceColor(), viewMatrix, origin.x(), origin.y());
// Regenerate textblob
SkTextBlobRunIterator it(blob);
SkGlyphRunListIterator it(glyphRunList);
GrTextUtils::RunPaint runPaint(&paint);
for (int run = 0; !it.done(); it.next(), run++) {
int glyphCount = it.glyphCount();
size_t textLen = glyphCount * sizeof(uint16_t);
const SkPoint& offset = it.offset();
cacheBlob->push_back_run(run);
if (!runPaint.modifyForRun([it](SkPaint* p) { it.applyFontToPaint(p); })) {
continue;
}
cacheBlob->setRunPaintFlags(run, runPaint.skPaint().getFlags());
SkASSERT(it.positioning() == SkTextBlob::kFull_Positioning);
if (CanDrawAsDistanceFields(runPaint, viewMatrix, props,
shaderCaps.supportsDistanceFieldText(), fOptions)) {
switch (it.positioning()) {
case SkTextBlob::kDefault_Positioning: {
auto origin = SkPoint::Make(x + offset.x(), y + offset.y());
SkGlyphRunBuilder builder;
builder.drawText(runPaint.skPaint(),
(const char*) it.glyphs(), textLen, origin);
auto glyphRunList = builder.useGlyphRunList();
if (!glyphRunList->empty()) {
auto glyphRun = (*glyphRunList)[0];
glyphRun.temporaryShuntToCallback(
[&](size_t runSize, const char* glyphIDs, const SkScalar* pos) {
this->drawDFPosText(
cacheBlob, run, glyphCache, props, runPaint,
scalerContextFlags, viewMatrix, glyphIDs, 2 * runSize,
pos, 2, SkPoint::Make(0, 0));
});
}
break;
}
case SkTextBlob::kHorizontal_Positioning: {
SkPoint dfOffset = SkPoint::Make(x, y + offset.y());
this->drawDFPosText(cacheBlob, run, glyphCache, props, runPaint,
scalerContextFlags, viewMatrix, (const char*)it.glyphs(),
textLen, it.pos(), 1, dfOffset);
break;
}
case SkTextBlob::kFull_Positioning: {
SkPoint dfOffset = SkPoint::Make(x, y);
this->drawDFPosText(cacheBlob, run, glyphCache, props, runPaint,
scalerContextFlags, viewMatrix, (const char*)it.glyphs(),
textLen, it.pos(), 2, dfOffset);
break;
}
}
this->drawDFPosText(cacheBlob, run, glyphCache, props, runPaint,
scalerContextFlags, viewMatrix, (const char*)it.glyphs(),
textLen, it.pos(), 2, origin);
} else {
switch (it.positioning()) {
case SkTextBlob::kDefault_Positioning: {
auto origin = SkPoint::Make(x + offset.x(), y + offset.y());
SkGlyphRunBuilder builder;
builder.drawText(runPaint.skPaint(),
(const char*) it.glyphs(), textLen, origin);
auto glyphRunList = builder.useGlyphRunList();
if (!glyphRunList->empty()) {
auto glyphRun = (*glyphRunList)[0];
glyphRun.temporaryShuntToCallback(
[&](size_t runSize, const char* glyphIDs, const SkScalar* pos) {
this->DrawBmpPosText(
cacheBlob, run, glyphCache, props, runPaint,
scalerContextFlags, viewMatrix, glyphIDs, 2 * runSize,
pos, 2, SkPoint::Make(0, 0));
});
}
break;
}
case SkTextBlob::kHorizontal_Positioning:
DrawBmpPosText(cacheBlob, run, glyphCache, props, runPaint, scalerContextFlags,
viewMatrix, (const char*)it.glyphs(), textLen, it.pos(), 1,
SkPoint::Make(x, y + offset.y()));
break;
case SkTextBlob::kFull_Positioning:
DrawBmpPosText(cacheBlob, run, glyphCache, props, runPaint, scalerContextFlags,
viewMatrix, (const char*)it.glyphs(), textLen, it.pos(), 2,
SkPoint::Make(x, y));
break;
}
DrawBmpPosText(cacheBlob, run, glyphCache, props, runPaint, scalerContextFlags,
viewMatrix, (const char*)it.glyphs(), textLen, it.pos(), 2,
origin);
}
}
}
@ -335,7 +265,6 @@ void GrTextContext::drawPosText(GrContext* context, GrTextUtils::Target* target,
}
}
void GrTextContext::DrawBmpPosText(GrTextBlob* blob, int runIndex,
GrGlyphCache* glyphCache, const SkSurfaceProps& props,
const GrTextUtils::Paint& paint,
@ -798,8 +727,7 @@ std::unique_ptr<GrDrawOp> GrTextContext::createOp_TestingOnly(GrContext* context
context->contextPriv().getTextBlobCache(), glyphCache,
*context->contextPriv().caps()->shaderCaps(), utilsPaint,
GrTextContext::kTextBlobOpScalerContextFlags, viewMatrix, surfaceProps,
text,
textLen, pos, 2, origin);
text, textLen, pos, 2, origin);
});
}

View File

@ -48,9 +48,9 @@ public:
const SkMatrix& viewMatrix, const SkSurfaceProps&, const char text[],
size_t byteLength, const SkScalar pos[], int scalarsPerPosition,
const SkPoint& offset, const SkIRect& regionClipBounds);
void drawTextBlob(GrContext*, GrTextUtils::Target*, const GrClip&, const SkPaint&,
const SkMatrix& viewMatrix, const SkSurfaceProps&, const SkTextBlob*,
SkScalar x, SkScalar y, const SkIRect& clipBounds);
void drawGlyphRunList(GrContext*, GrTextUtils::Target*, const GrClip&,
const SkMatrix& viewMatrix, const SkSurfaceProps&, SkGlyphRunList*,
const SkIRect& clipBounds);
std::unique_ptr<GrDrawOp> createOp_TestingOnly(GrContext*,
GrTextContext*,
@ -115,16 +115,15 @@ private:
static SkColor ComputeCanonicalColor(const SkPaint&, bool lcd);
// Determines if we need to use fake gamma (and contrast boost):
static SkScalerContextFlags ComputeScalerContextFlags(const GrColorSpaceInfo&);
void regenerateTextBlob(GrTextBlob* bmp,
void regenerateGlyphRunList(GrTextBlob* bmp,
GrGlyphCache*,
const GrShaderCaps&,
const GrTextUtils::Paint&,
SkScalerContextFlags scalerContextFlags,
const SkMatrix& viewMatrix,
const SkSurfaceProps&,
const SkTextBlob* blob, SkScalar x, SkScalar y) const;
static bool HasLCD(const SkTextBlob*);
SkGlyphRunList* glyphRunList) const;
sk_sp<GrTextBlob> makeDrawPosTextBlob(GrTextBlobCache*, GrGlyphCache*,
const GrShaderCaps&,