inline std::unique_ptr<GrAtlasTextOp> GrTextBlob::makeOp(
const Run::SubRunInfo& info, int glyphCount, uint16_t run, uint16_t subRun,
const SkMatrix& viewMatrix, SkScalar x, SkScalar y, const SkIRect& clipRect,
const SkPaint& paint, GrColor filteredColor, const SkSurfaceProps& props,
const GrDistanceFieldAdjustTable* distanceAdjustTable, GrTextTarget* target) {
GrMaskFormat format = info.maskFormat();
GrPaint grPaint;
target->makeGrPaint(info.maskFormat(), paint, viewMatrix, &grPaint);
std::unique_ptr<GrAtlasTextOp> op;
if (info.drawAsDistanceFields()) {
// TODO: Can we be even smarter based on the dest transfer function?
op = GrAtlasTextOp::MakeDistanceField(
target->getContext(), std::move(grPaint), glyphCount, distanceAdjustTable,
target->colorSpaceInfo().isLinearlyBlended(), paint.computeLuminanceColor(),
props, info.isAntiAliased(), info.hasUseLCDText());
} else {
op = GrAtlasTextOp::MakeBitmap(target->getContext(), std::move(grPaint), format, glyphCount,
info.needsTransform());
}
GrAtlasTextOp::Geometry& geometry = op->geometry();
geometry.fViewMatrix = viewMatrix;
geometry.fClipRect = clipRect;
geometry.fBlob = SkRef(this);
geometry.fRun = run;
geometry.fSubRun = subRun;
geometry.fColor =
info.maskFormat() == kARGB_GrMaskFormat ? GrColor_WHITE : filteredColor;
geometry.fX = x;
geometry.fY = y;
op->init();
return op;
}
void GrAtlasTextBlob::appendGlyph(int runIndex,
const SkRect& positions,
GrColor color,
GrBatchTextStrike* strike,
GrGlyph* glyph,
SkGlyphCache* cache, const SkGlyph& skGlyph,
SkScalar x, SkScalar y, SkScalar scale, bool applyVM) {
// If the glyph is too large we fall back to paths
if (glyph->fTooLargeForAtlas) {
this->appendLargeGlyph(glyph, cache, skGlyph, x, y, scale, applyVM);
return;
}
Run& run = fRuns[runIndex];
GrMaskFormat format = glyph->fMaskFormat;
Run::SubRunInfo* subRun = &run.fSubRunInfo.back();
if (run.fInitialized && subRun->maskFormat() != format) {
subRun = &run.push_back();
subRun->setStrike(strike);
} else if (!run.fInitialized) {
subRun->setStrike(strike);
}
run.fInitialized = true;
size_t vertexStride = GetVertexStride(format);
subRun->setMaskFormat(format);
subRun->joinGlyphBounds(positions);
subRun->setColor(color);
intptr_t vertex = reinterpret_cast<intptr_t>(this->fVertices + subRun->vertexEndIndex());
if (kARGB_GrMaskFormat != glyph->fMaskFormat) {
// V0
SkPoint* position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fLeft, positions.fTop);
SkColor* colorPtr = reinterpret_cast<SkColor*>(vertex + sizeof(SkPoint));
*colorPtr = color;
vertex += vertexStride;
// V1
position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fLeft, positions.fBottom);
colorPtr = reinterpret_cast<SkColor*>(vertex + sizeof(SkPoint));
*colorPtr = color;
vertex += vertexStride;
// V2
position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fRight, positions.fBottom);
colorPtr = reinterpret_cast<SkColor*>(vertex + sizeof(SkPoint));
*colorPtr = color;
vertex += vertexStride;
// V3
position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fRight, positions.fTop);
colorPtr = reinterpret_cast<SkColor*>(vertex + sizeof(SkPoint));
*colorPtr = color;
} else {
// V0
SkPoint* position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fLeft, positions.fTop);
vertex += vertexStride;
// V1
position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fLeft, positions.fBottom);
vertex += vertexStride;
// V2
position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fRight, positions.fBottom);
vertex += vertexStride;
// V3
position = reinterpret_cast<SkPoint*>(vertex);
position->set(positions.fRight, positions.fTop);
}
subRun->appendVertices(vertexStride);
fGlyphs[subRun->glyphEndIndex()] = glyph;
subRun->glyphAppended();
}
void GrTextBlob::appendGlyph(int runIndex,
const SkRect& positions,
GrColor color,
const sk_sp<GrTextStrike>& strike,
GrGlyph* glyph, bool preTransformed) {
Run& run = fRuns[runIndex];
GrMaskFormat format = glyph->fMaskFormat;
Run::SubRunInfo* subRun = &run.fSubRunInfo.back();
if (run.fInitialized && subRun->maskFormat() != format) {
subRun = &run.push_back();
subRun->setStrike(strike);
} else if (!run.fInitialized) {
subRun->setStrike(strike);
}
run.fInitialized = true;
bool hasW = subRun->hasWCoord();
// glyphs drawn in perspective must always have a w coord.
SkASSERT(hasW || !fInitialViewMatrix.hasPerspective());
size_t vertexStride = GetVertexStride(format, hasW);
subRun->setMaskFormat(format);
subRun->joinGlyphBounds(positions);
subRun->setColor(color);
intptr_t vertex = reinterpret_cast<intptr_t>(this->fVertices + subRun->vertexEndIndex());
// We always write the third position component used by SDFs. If it is unused it gets
// overwritten. Similarly, we always write the color and the blob will later overwrite it
// with texture coords if it is unused.
size_t colorOffset = hasW ? sizeof(SkPoint3) : sizeof(SkPoint);
// V0
*reinterpret_cast<SkPoint3*>(vertex) = {positions.fLeft, positions.fTop, 1.f};
*reinterpret_cast<GrColor*>(vertex + colorOffset) = color;
vertex += vertexStride;
// V1
*reinterpret_cast<SkPoint3*>(vertex) = {positions.fLeft, positions.fBottom, 1.f};
*reinterpret_cast<GrColor*>(vertex + colorOffset) = color;
vertex += vertexStride;
// V2
*reinterpret_cast<SkPoint3*>(vertex) = {positions.fRight, positions.fTop, 1.f};
*reinterpret_cast<GrColor*>(vertex + colorOffset) = color;
vertex += vertexStride;
// V3
*reinterpret_cast<SkPoint3*>(vertex) = {positions.fRight, positions.fBottom, 1.f};
*reinterpret_cast<GrColor*>(vertex + colorOffset) = color;
subRun->appendVertices(vertexStride);
fGlyphs[subRun->glyphEndIndex()] = glyph;
subRun->glyphAppended();
subRun->setNeedsTransform(!preTransformed);
}