void GrContext::drawFontCache(const SkRect& rect, GrMaskFormat format, const SkPaint& paint,
GrRenderTarget* target) {
GrBatchFontCache* cache = this->getBatchFontCache();
GrTexture* atlas = cache->getTexture(format);
SkAutoTUnref<GrDrawContext> drawContext(this->drawContext(target));
// TODO: add drawContext method to encapsulate this.
GrPaint grPaint;
SkMatrix mat;
mat.reset();
if (!SkPaintToGrPaint(this, paint, mat, &grPaint)) {
return;
}
SkMatrix textureMat;
textureMat.reset();
// TODO: use setScaleTranslate()
textureMat[SkMatrix::kMScaleX] = 1.0f/rect.width();
textureMat[SkMatrix::kMScaleY] = 1.0f/rect.height();
textureMat[SkMatrix::kMTransX] = -rect.fLeft/rect.width();
textureMat[SkMatrix::kMTransY] = -rect.fTop/rect.height();
grPaint.addColorTextureProcessor(atlas, textureMat);
GrClip clip;
drawContext->drawRect(clip, grPaint, mat, rect);
}
void GrStencilAndCoverTextContext::uncachedDrawTextBlob(GrContext* context,
GrDrawContext* dc,
const GrClip& clip,
const SkPaint& skPaint,
const SkMatrix& viewMatrix,
const SkSurfaceProps& props,
const SkTextBlob* blob,
SkScalar x, SkScalar y,
SkDrawFilter* drawFilter,
const SkIRect& clipBounds) {
SkPaint runPaint = skPaint;
SkTextBlobRunIterator it(blob);
for (;!it.done(); it.next()) {
size_t textLen = it.glyphCount() * sizeof(uint16_t);
const SkPoint& offset = it.offset();
// applyFontToPaint() always overwrites the exact same attributes,
// so it is safe to not re-seed the paint for this reason.
it.applyFontToPaint(&runPaint);
if (drawFilter && !drawFilter->filter(&runPaint, SkDrawFilter::kText_Type)) {
// A false return from filter() means we should abort the current draw.
runPaint = skPaint;
continue;
}
runPaint.setFlags(GrTextUtils::FilterTextFlags(props, runPaint));
GrPaint grPaint;
if (!SkPaintToGrPaint(context, dc, runPaint, viewMatrix, &grPaint)) {
return;
}
switch (it.positioning()) {
case SkTextBlob::kDefault_Positioning:
this->drawText(context, dc, clip, grPaint, runPaint, viewMatrix, props,
(const char *)it.glyphs(),
textLen, x + offset.x(), y + offset.y(), clipBounds);
break;
case SkTextBlob::kHorizontal_Positioning:
this->drawPosText(context, dc, clip, grPaint, runPaint, viewMatrix, props,
(const char*)it.glyphs(),
textLen, it.pos(), 1, SkPoint::Make(x, y + offset.y()),
clipBounds);
break;
case SkTextBlob::kFull_Positioning:
this->drawPosText(context, dc, clip, grPaint, runPaint, viewMatrix, props,
(const char*)it.glyphs(),
textLen, it.pos(), 2, SkPoint::Make(x, y), clipBounds);
break;
}
if (drawFilter) {
// A draw filter may change the paint arbitrarily, so we must re-seed in this case.
runPaint = skPaint;
}
}
}
void SkGpuDevice::drawTexture(GrTexture* tex, const SkRect& dst, const SkPaint& paint) {
GrPaint grPaint;
SkMatrix mat;
mat.reset();
if (!SkPaintToGrPaint(this->context(), paint, mat,
this->surfaceProps().isGammaCorrect(), &grPaint)) {
return;
}
SkMatrix textureMat;
textureMat.reset();
textureMat[SkMatrix::kMScaleX] = 1.0f/dst.width();
textureMat[SkMatrix::kMScaleY] = 1.0f/dst.height();
textureMat[SkMatrix::kMTransX] = -dst.fLeft/dst.width();
textureMat[SkMatrix::kMTransY] = -dst.fTop/dst.height();
grPaint.addColorTextureProcessor(tex, textureMat);
fDrawContext->drawRect(GrNoClip(), grPaint, mat, dst);
}
void GrStencilAndCoverTextContext::drawTextBlob(GrContext* context, GrDrawContext* dc,
const GrClip& clip, const SkPaint& skPaint,
const SkMatrix& viewMatrix,
const SkSurfaceProps& props,
const SkTextBlob* skBlob, SkScalar x, SkScalar y,
SkDrawFilter* drawFilter,
const SkIRect& clipBounds) {
if (context->abandoned()) {
return;
}
if (!this->internalCanDraw(skPaint)) {
fFallbackTextContext->drawTextBlob(context, dc, clip, skPaint, viewMatrix, props, skBlob,
x, y, drawFilter, clipBounds);
return;
}
if (drawFilter || skPaint.getPathEffect()) {
// This draw can't be cached.
this->uncachedDrawTextBlob(context, dc, clip, skPaint, viewMatrix, props, skBlob, x, y,
drawFilter, clipBounds);
return;
}
GrPaint paint;
if (!SkPaintToGrPaint(context, dc, skPaint, viewMatrix, &paint)) {
return;
}
const TextBlob& blob = this->findOrCreateTextBlob(skBlob, skPaint);
TextBlob::Iter iter(blob);
for (TextRun* run = iter.get(); run; run = iter.next()) {
// The run's "font" overrides the anti-aliasing of the passed in paint!
paint.setAntiAlias(run->isAntiAlias());
run->draw(context, dc, paint, clip, viewMatrix, props, x, y,
clipBounds, fFallbackTextContext, skPaint);
run->releaseGlyphCache();
}
}
void GrStencilAndCoverTextContext::drawTextBlob(GrContext* context, GrDrawContext* dc,
const GrClip& clip, const SkPaint& skPaint,
const SkMatrix& viewMatrix,
const SkSurfaceProps& props,
const SkTextBlob* skBlob, SkScalar x, SkScalar y,
SkDrawFilter* drawFilter,
const SkIRect& clipBounds) {
if (context->abandoned()) {
return;
}
if (!this->internalCanDraw(skPaint)) {
fFallbackTextContext->drawTextBlob(context, dc, clip, skPaint, viewMatrix, props, skBlob,
x, y, drawFilter, clipBounds);
return;
}
if (drawFilter || skPaint.getPathEffect()) {
// This draw can't be cached.
this->uncachedDrawTextBlob(context, dc, clip, skPaint, viewMatrix, props, skBlob, x, y,
drawFilter, clipBounds);
return;
}
GrPaint paint;
if (!SkPaintToGrPaint(context, skPaint, viewMatrix, &paint)) {
return;
}
const TextBlob& blob = this->findOrCreateTextBlob(skBlob, skPaint);
GrPipelineBuilder pipelineBuilder(paint, dc->accessRenderTarget(), clip);
TextBlob::Iter iter(blob);
for (TextRun* run = iter.get(); run; run = iter.next()) {
run->draw(context, dc, &pipelineBuilder, paint.getColor(), viewMatrix, props, x, y,
clipBounds, fFallbackTextContext, skPaint);
run->releaseGlyphCache();
}
}
void GrStencilAndCoverTextContext::TextRun::draw(GrContext* ctx,
GrRenderTargetContext* renderTargetContext,
const GrClip& clip, const SkMatrix& viewMatrix,
const SkSurfaceProps& props, SkScalar x,
SkScalar y, const SkIRect& clipBounds,
GrAtlasTextContext* fallbackTextContext,
const SkPaint& originalSkPaint) const {
SkASSERT(fInstanceData);
if (fInstanceData->count()) {
static constexpr GrUserStencilSettings kCoverPass(
GrUserStencilSettings::StaticInit<
0x0000,
GrUserStencilTest::kNotEqual, // Stencil pass accounts for clip.
0xffff,
GrUserStencilOp::kZero,
GrUserStencilOp::kKeep,
0xffff>()
);
sk_sp<GrPathRange> glyphs(this->createGlyphs(ctx->resourceProvider()));
if (fLastDrawnGlyphsID != glyphs->uniqueID()) {
// Either this is the first draw or the glyphs object was purged since last draw.
glyphs->loadPathsIfNeeded(fInstanceData->indices(), fInstanceData->count());
fLastDrawnGlyphsID = glyphs->uniqueID();
}
GrPaint grPaint;
if (!SkPaintToGrPaint(ctx, renderTargetContext, originalSkPaint, viewMatrix, &grPaint)) {
return;
}
// Don't compute a bounding box. For dst copy texture, we'll opt instead for it to just copy
// the entire dst. Realistically this is a moot point, because any context that supports
// NV_path_rendering will also support NV_blend_equation_advanced.
// For clipping we'll just skip any optimizations based on the bounds. This does, however,
// hurt GrOp combining.
const SkRect bounds = SkRect::MakeIWH(renderTargetContext->width(),
renderTargetContext->height());
// The run's "font" overrides the anti-aliasing of the passed in SkPaint!
GrAAType aaType;
if (this->aa() == GrAA::kYes) {
SkASSERT(renderTargetContext->isStencilBufferMultisampled());
aaType = renderTargetContext->isUnifiedMultisampled() ? GrAAType::kMSAA
: GrAAType::kMixedSamples;
} else {
aaType = GrAAType::kNone;
}
std::unique_ptr<GrDrawOp> op = GrDrawPathRangeOp::Make(
viewMatrix, fTextRatio, fTextInverseRatio * x, fTextInverseRatio * y,
std::move(grPaint), GrPathRendering::kWinding_FillType, aaType, glyphs.get(),
fInstanceData.get(), bounds);
renderTargetContext->addDrawOp(clip, std::move(op));
}
if (fFallbackTextBlob) {
SkPaint fallbackSkPaint(originalSkPaint);
fStyle.strokeRec().applyToPaint(&fallbackSkPaint);
if (!fStyle.isSimpleFill()) {
fallbackSkPaint.setStrokeWidth(fStyle.strokeRec().getWidth() * fTextRatio);
}
fallbackTextContext->drawTextBlob(ctx, renderTargetContext, clip, fallbackSkPaint,
viewMatrix, props, fFallbackTextBlob.get(), x, y, nullptr,
clipBounds);
}
}
