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gerrit-public.fairphone.software / platform / external / skia / cbba29ed4764b9a9da58710aed18aec6f3bd0ce0 / . / src / gpu / GrRenderTargetContext.cpp
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/*
* Copyright 2015 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#include "GrRenderTargetContext.h"
#include "../private/GrAuditTrail.h"
#include "../private/SkShadowFlags.h"
#include "GrAppliedClip.h"
#include "GrBackendSemaphore.h"
#include "GrBlurUtils.h"
#include "GrColor.h"
#include "GrContextPriv.h"
#include "GrDrawingManager.h"
#include "GrFixedClip.h"
#include "GrGpuResourcePriv.h"
#include "GrOpList.h"
#include "GrPathRenderer.h"
#include "GrQuad.h"
#include "GrRenderTarget.h"
#include "GrRenderTargetContextPriv.h"
#include "GrResourceProvider.h"
#include "GrStencilAttachment.h"
#include "GrTracing.h"
#include "SkDrawShadowInfo.h"
#include "SkGr.h"
#include "SkLatticeIter.h"
#include "SkMatrixPriv.h"
#include "SkShadowUtils.h"
#include "SkSurfacePriv.h"
#include "effects/GrRRectEffect.h"
#include "instanced/InstancedRendering.h"
#include "ops/GrAtlasTextOp.h"
#include "ops/GrClearOp.h"
#include "ops/GrClearStencilClipOp.h"
#include "ops/GrDebugMarkerOp.h"
#include "ops/GrDrawAtlasOp.h"
#include "ops/GrDrawOp.h"
#include "ops/GrDrawVerticesOp.h"
#include "ops/GrLatticeOp.h"
#include "ops/GrOp.h"
#include "ops/GrOvalOpFactory.h"
#include "ops/GrRectOpFactory.h"
#include "ops/GrRegionOp.h"
#include "ops/GrSemaphoreOp.h"
#include "ops/GrShadowRRectOp.h"
#include "ops/GrStencilPathOp.h"
#include "ops/GrTextureOp.h"
#include "text/GrAtlasTextContext.h"
#include "text/GrStencilAndCoverTextContext.h"
#include "text/GrTextUtils.h"
class GrRenderTargetContext::TextTarget : public GrTextUtils::Target {
public:
TextTarget(GrRenderTargetContext* renderTargetContext)
: Target(renderTargetContext->width(), renderTargetContext->height(),
renderTargetContext->colorSpaceInfo())
, fRenderTargetContext(renderTargetContext) {}
void addDrawOp(const GrClip& clip, std::unique_ptr<GrAtlasTextOp> op) {
fRenderTargetContext->addDrawOp(clip, std::move(op));
}
void drawPath(const GrClip& clip, const SkPath& path, const SkPaint& paint,
const SkMatrix& viewMatrix, const SkMatrix* pathMatrix,
const SkIRect& clipBounds) {
GrBlurUtils::drawPathWithMaskFilter(fRenderTargetContext->fContext, fRenderTargetContext,
clip, path, paint, viewMatrix, pathMatrix, clipBounds,
false);
}
void makeGrPaint(GrMaskFormat maskFormat, const SkPaint& skPaint, const SkMatrix& viewMatrix,
GrPaint* grPaint) {
GrContext* context = fRenderTargetContext->fContext;
const GrColorSpaceInfo& colorSpaceInfo = fRenderTargetContext->colorSpaceInfo();
if (kARGB_GrMaskFormat == maskFormat) {
SkPaintToGrPaintWithPrimitiveColor(context, colorSpaceInfo, skPaint, grPaint);
} else {
SkPaintToGrPaint(context, colorSpaceInfo, skPaint, viewMatrix, grPaint);
}
}
private:
GrRenderTargetContext* fRenderTargetContext;
};
#define ASSERT_OWNED_RESOURCE(R) SkASSERT(!(R) || (R)->getContext() == this->drawingManager()->getContext())
#define ASSERT_SINGLE_OWNER \
SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(this->singleOwner());)
#define ASSERT_SINGLE_OWNER_PRIV \
SkDEBUGCODE(GrSingleOwner::AutoEnforce debug_SingleOwner(fRenderTargetContext->singleOwner());)
#define RETURN_IF_ABANDONED if (this->drawingManager()->wasAbandoned()) { return; }
#define RETURN_IF_ABANDONED_PRIV if (fRenderTargetContext->drawingManager()->wasAbandoned()) { return; }
#define RETURN_FALSE_IF_ABANDONED if (this->drawingManager()->wasAbandoned()) { return false; }
#define RETURN_FALSE_IF_ABANDONED_PRIV if (fRenderTargetContext->drawingManager()->wasAbandoned()) { return false; }
#define RETURN_NULL_IF_ABANDONED if (this->drawingManager()->wasAbandoned()) { return nullptr; }
//////////////////////////////////////////////////////////////////////////////
GrAAType GrChooseAAType(GrAA aa, GrFSAAType fsaaType, GrAllowMixedSamples allowMixedSamples,
const GrCaps& caps) {
if (GrAA::kNo == aa) {
// On some devices we cannot disable MSAA if it is enabled so we make the AA type reflect
// that.
if (fsaaType == GrFSAAType::kUnifiedMSAA && !caps.multisampleDisableSupport()) {
return GrAAType::kMSAA;
}
return GrAAType::kNone;
}
switch (fsaaType) {
case GrFSAAType::kNone:
return GrAAType::kCoverage;
case GrFSAAType::kUnifiedMSAA:
return GrAAType::kMSAA;
case GrFSAAType::kMixedSamples:
return GrAllowMixedSamples::kYes == allowMixedSamples ? GrAAType::kMixedSamples
: GrAAType::kCoverage;
}
SK_ABORT("Unexpected fsaa type");
return GrAAType::kNone;
}
//////////////////////////////////////////////////////////////////////////////
class AutoCheckFlush {
public:
AutoCheckFlush(GrDrawingManager* drawingManager) : fDrawingManager(drawingManager) {
SkASSERT(fDrawingManager);
}
~AutoCheckFlush() { fDrawingManager->flushIfNecessary(); }
private:
GrDrawingManager* fDrawingManager;
};
bool GrRenderTargetContext::wasAbandoned() const {
return this->drawingManager()->wasAbandoned();
}
// In MDB mode the reffing of the 'getLastOpList' call's result allows in-progress
// GrOpLists to be picked up and added to by renderTargetContexts lower in the call
// stack. When this occurs with a closed GrOpList, a new one will be allocated
// when the renderTargetContext attempts to use it (via getOpList).
GrRenderTargetContext::GrRenderTargetContext(GrContext* context,
GrDrawingManager* drawingMgr,
sk_sp<GrRenderTargetProxy> rtp,
sk_sp<SkColorSpace> colorSpace,
const SkSurfaceProps* surfaceProps,
GrAuditTrail* auditTrail,
GrSingleOwner* singleOwner,
bool managedOpList)
: GrSurfaceContext(context, drawingMgr, rtp->config(), std::move(colorSpace), auditTrail,
singleOwner)
, fRenderTargetProxy(std::move(rtp))
, fOpList(sk_ref_sp(fRenderTargetProxy->getLastRenderTargetOpList()))
, fInstancedPipelineInfo(fRenderTargetProxy.get())
, fSurfaceProps(SkSurfacePropsCopyOrDefault(surfaceProps))
, fManagedOpList(managedOpList) {
#ifndef MDB_ALLOC_RESOURCES
// MDB TODO: to ensure all resources still get allocated in the correct order in the hybrid
// world we need to get the correct opList here so that it, in turn, can grab and hold
// its rendertarget.
this->getRTOpList();
#endif
fTextTarget.reset(new TextTarget(this));
SkDEBUGCODE(this->validate();)
}
#ifdef SK_DEBUG
void GrRenderTargetContext::validate() const {
SkASSERT(fRenderTargetProxy);
fRenderTargetProxy->validate(fContext);
if (fOpList && !fOpList->isClosed()) {
SkASSERT(fRenderTargetProxy->getLastOpList() == fOpList.get());
}
}
#endif
GrRenderTargetContext::~GrRenderTargetContext() {
ASSERT_SINGLE_OWNER
}
GrTextureProxy* GrRenderTargetContext::asTextureProxy() {
return fRenderTargetProxy->asTextureProxy();
}
const GrTextureProxy* GrRenderTargetContext::asTextureProxy() const {
return fRenderTargetProxy->asTextureProxy();
}
sk_sp<GrTextureProxy> GrRenderTargetContext::asTextureProxyRef() {
return sk_ref_sp(fRenderTargetProxy->asTextureProxy());
}
GrMipMapped GrRenderTargetContext::mipMapped() const {
if (const GrTextureProxy* proxy = this->asTextureProxy()) {
return proxy->mipMapped();
}
return GrMipMapped::kNo;
}
GrRenderTargetOpList* GrRenderTargetContext::getRTOpList() {
ASSERT_SINGLE_OWNER
SkDEBUGCODE(this->validate();)
if (!fOpList || fOpList->isClosed()) {
fOpList = this->drawingManager()->newRTOpList(fRenderTargetProxy.get(), fManagedOpList);
}
return fOpList.get();
}
GrOpList* GrRenderTargetContext::getOpList() {
return this->getRTOpList();
}
void GrRenderTargetContext::drawText(const GrClip& clip, const SkPaint& skPaint,
const SkMatrix& viewMatrix, const char text[],
size_t byteLength, SkScalar x, SkScalar y,
const SkIRect& clipBounds) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawText", fContext);
GrAtlasTextContext* atlasTextContext = this->drawingManager()->getAtlasTextContext();
atlasTextContext->drawText(fContext, fTextTarget.get(), clip, skPaint, viewMatrix,
fSurfaceProps, text, byteLength, x, y, clipBounds);
}
void GrRenderTargetContext::drawPosText(const GrClip& clip, const SkPaint& paint,
const SkMatrix& viewMatrix, const char text[],
size_t byteLength, const SkScalar pos[],
int scalarsPerPosition, const SkPoint& offset,
const SkIRect& clipBounds) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawPosText", fContext);
GrAtlasTextContext* atlasTextContext = this->drawingManager()->getAtlasTextContext();
atlasTextContext->drawPosText(fContext, fTextTarget.get(), clip, paint, viewMatrix,
fSurfaceProps, text, byteLength, pos, scalarsPerPosition, offset,
clipBounds);
}
void GrRenderTargetContext::drawTextBlob(const GrClip& clip, const SkPaint& paint,
const SkMatrix& viewMatrix, const SkTextBlob* blob,
SkScalar x, SkScalar y, SkDrawFilter* filter,
const SkIRect& clipBounds) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawTextBlob", fContext);
GrAtlasTextContext* atlasTextContext = this->drawingManager()->getAtlasTextContext();
atlasTextContext->drawTextBlob(fContext, fTextTarget.get(), clip, paint, viewMatrix,
fSurfaceProps, blob, x, y, filter, clipBounds);
}
void GrRenderTargetContext::discard() {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "discard", fContext);
AutoCheckFlush acf(this->drawingManager());
this->getRTOpList()->discard();
}
void GrRenderTargetContext::clear(const SkIRect* rect,
const GrColor color,
bool canIgnoreRect) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "clear", fContext);
AutoCheckFlush acf(this->drawingManager());
this->internalClear(rect ? GrFixedClip(*rect) : GrFixedClip::Disabled(), color, canIgnoreRect);
}
void GrRenderTargetContextPriv::absClear(const SkIRect* clearRect, const GrColor color) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "absClear",
fRenderTargetContext->fContext);
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
SkIRect rtRect = SkIRect::MakeWH(fRenderTargetContext->fRenderTargetProxy->worstCaseWidth(),
fRenderTargetContext->fRenderTargetProxy->worstCaseHeight());
if (clearRect) {
if (clearRect->contains(rtRect)) {
clearRect = nullptr; // full screen
} else {
if (!rtRect.intersect(*clearRect)) {
return;
}
}
}
// TODO: in a post-MDB world this should be handled at the OpList level.
// An op-list that is initially cleared and has no other ops should receive an
// extra draw.
// This path doesn't handle coalescing of full screen clears b.c. it
// has to clear the entire render target - not just the content area.
// It could be done but will take more finagling.
std::unique_ptr<GrOp> op(GrClearOp::Make(rtRect, color, !clearRect));
if (!op) {
return;
}
fRenderTargetContext->getRTOpList()->addOp(std::move(op), *fRenderTargetContext->caps());
}
void GrRenderTargetContextPriv::clear(const GrFixedClip& clip,
const GrColor color,
bool canIgnoreClip) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "clear",
fRenderTargetContext->fContext);
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
fRenderTargetContext->internalClear(clip, color, canIgnoreClip);
}
void GrRenderTargetContext::internalClear(const GrFixedClip& clip,
const GrColor color,
bool canIgnoreClip) {
bool isFull = false;
if (!clip.hasWindowRectangles()) {
isFull = !clip.scissorEnabled() ||
(canIgnoreClip && fContext->caps()->fullClearIsFree()) ||
clip.scissorRect().contains(SkIRect::MakeWH(this->width(), this->height()));
}
if (isFull) {
this->getRTOpList()->fullClear(*this->caps(), color);
} else {
std::unique_ptr<GrOp> op(GrClearOp::Make(clip, color, this->asSurfaceProxy()));
if (!op) {
return;
}
this->getRTOpList()->addOp(std::move(op), *this->caps());
}
}
void GrRenderTargetContext::drawPaint(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawPaint", fContext);
// set rect to be big enough to fill the space, but not super-huge, so we
// don't overflow fixed-point implementations
SkRect r = fRenderTargetProxy->getBoundsRect();
SkRRect rrect;
GrAA aa;
// Check if we can replace a clipRRect()/drawPaint() with a drawRRect(). We only do the
// transformation for non-rect rrects. Rects caused a performance regression on an Android
// test that needs investigation. We also skip cases where there are fragment processors
// because they may depend on having correct local coords and this path draws in device space
// without a local matrix.
if (!paint.numTotalFragmentProcessors() && clip.isRRect(r, &rrect, &aa) && !rrect.isRect()) {
this->drawRRect(GrNoClip(), std::move(paint), aa, SkMatrix::I(), rrect,
GrStyle::SimpleFill());
return;
}
bool isPerspective = viewMatrix.hasPerspective();
// We attempt to map r by the inverse matrix and draw that. mapRect will
// map the four corners and bound them with a new rect. This will not
// produce a correct result for some perspective matrices.
if (!isPerspective) {
if (!SkMatrixPriv::InverseMapRect(viewMatrix, &r, r)) {
SkDebugf("Could not invert matrix\n");
return;
}
this->drawRect(clip, std::move(paint), GrAA::kNo, viewMatrix, r);
} else {
SkMatrix localMatrix;
if (!viewMatrix.invert(&localMatrix)) {
SkDebugf("Could not invert matrix\n");
return;
}
AutoCheckFlush acf(this->drawingManager());
std::unique_ptr<GrDrawOp> op = GrRectOpFactory::MakeNonAAFillWithLocalMatrix(
std::move(paint), SkMatrix::I(), localMatrix, r, GrAAType::kNone);
this->addDrawOp(clip, std::move(op));
}
}
static inline bool rect_contains_inclusive(const SkRect& rect, const SkPoint& point) {
return point.fX >= rect.fLeft && point.fX <= rect.fRight &&
point.fY >= rect.fTop && point.fY <= rect.fBottom;
}
// Attempts to crop a rect and optional local rect to the clip boundaries.
// Returns false if the draw can be skipped entirely.
static bool crop_filled_rect(int width, int height, const GrClip& clip,
const SkMatrix& viewMatrix, SkRect* rect,
SkRect* localRect = nullptr) {
if (!viewMatrix.rectStaysRect()) {
return true;
}
SkIRect clipDevBounds;
SkRect clipBounds;
clip.getConservativeBounds(width, height, &clipDevBounds);
if (!SkMatrixPriv::InverseMapRect(viewMatrix, &clipBounds, SkRect::Make(clipDevBounds))) {
return false;
}
if (localRect) {
if (!rect->intersects(clipBounds)) {
return false;
}
const SkScalar dx = localRect->width() / rect->width();
const SkScalar dy = localRect->height() / rect->height();
if (clipBounds.fLeft > rect->fLeft) {
localRect->fLeft += (clipBounds.fLeft - rect->fLeft) * dx;
rect->fLeft = clipBounds.fLeft;
}
if (clipBounds.fTop > rect->fTop) {
localRect->fTop += (clipBounds.fTop - rect->fTop) * dy;
rect->fTop = clipBounds.fTop;
}
if (clipBounds.fRight < rect->fRight) {
localRect->fRight -= (rect->fRight - clipBounds.fRight) * dx;
rect->fRight = clipBounds.fRight;
}
if (clipBounds.fBottom < rect->fBottom) {
localRect->fBottom -= (rect->fBottom - clipBounds.fBottom) * dy;
rect->fBottom = clipBounds.fBottom;
}
return true;
}
return rect->intersect(clipBounds);
}
bool GrRenderTargetContext::drawFilledRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& rect,
const GrUserStencilSettings* ss) {
SkRect croppedRect = rect;
if (!crop_filled_rect(this->width(), this->height(), clip, viewMatrix, &croppedRect)) {
return true;
}
if (GrCaps::InstancedSupport::kNone != fContext->caps()->instancedSupport() &&
(!ss || ss->isDisabled(false))) {
gr_instanced::OpAllocator* oa = this->drawingManager()->instancingAllocator();
std::unique_ptr<GrDrawOp> op = oa->recordRect(croppedRect, viewMatrix, std::move(paint),
aa, fInstancedPipelineInfo);
if (op) {
this->addDrawOp(clip, std::move(op));
return true;
}
}
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
std::unique_ptr<GrDrawOp> op;
if (GrAAType::kCoverage == aaType) {
op = GrRectOpFactory::MakeAAFill(std::move(paint), viewMatrix, croppedRect, ss);
} else {
op = GrRectOpFactory::MakeNonAAFill(std::move(paint), viewMatrix, croppedRect, aaType, ss);
}
if (!op) {
return false;
}
this->addDrawOp(clip, std::move(op));
return true;
}
void GrRenderTargetContext::drawRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& rect,
const GrStyle* style) {
if (!style) {
style = &GrStyle::SimpleFill();
}
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawRect", fContext);
// Path effects should've been devolved to a path in SkGpuDevice
SkASSERT(!style->pathEffect());
AutoCheckFlush acf(this->drawingManager());
const SkStrokeRec& stroke = style->strokeRec();
if (stroke.getStyle() == SkStrokeRec::kFill_Style) {
// Check if this is a full RT draw and can be replaced with a clear. We don't bother
// checking cases where the RT is fully inside a stroke.
SkRect rtRect = fRenderTargetProxy->getBoundsRect();
// Does the clip contain the entire RT?
if (clip.quickContains(rtRect)) {
SkMatrix invM;
if (!viewMatrix.invert(&invM)) {
return;
}
// Does the rect bound the RT?
GrQuad quad;
quad.setFromMappedRect(rtRect, invM);
if (rect_contains_inclusive(rect, quad.point(0)) &&
rect_contains_inclusive(rect, quad.point(1)) &&
rect_contains_inclusive(rect, quad.point(2)) &&
rect_contains_inclusive(rect, quad.point(3))) {
// Will it blend?
GrColor clearColor;
if (paint.isConstantBlendedColor(&clearColor)) {
this->clear(nullptr, clearColor, true);
return;
}
}
}
if (this->drawFilledRect(clip, std::move(paint), aa, viewMatrix, rect, nullptr)) {
return;
}
} else if (stroke.getStyle() == SkStrokeRec::kStroke_Style ||
stroke.getStyle() == SkStrokeRec::kHairline_Style) {
if ((!rect.width() || !rect.height()) &&
SkStrokeRec::kHairline_Style != stroke.getStyle()) {
SkScalar r = stroke.getWidth() / 2;
// TODO: Move these stroke->fill fallbacks to GrShape?
switch (stroke.getJoin()) {
case SkPaint::kMiter_Join:
this->drawRect(
clip, std::move(paint), aa, viewMatrix,
{rect.fLeft - r, rect.fTop - r, rect.fRight + r, rect.fBottom + r},
&GrStyle::SimpleFill());
return;
case SkPaint::kRound_Join:
// Raster draws nothing when both dimensions are empty.
if (rect.width() || rect.height()){
SkRRect rrect = SkRRect::MakeRectXY(rect.makeOutset(r, r), r, r);
this->drawRRect(clip, std::move(paint), aa, viewMatrix, rrect,
GrStyle::SimpleFill());
return;
}
case SkPaint::kBevel_Join:
if (!rect.width()) {
this->drawRect(clip, std::move(paint), aa, viewMatrix,
{rect.fLeft - r, rect.fTop, rect.fRight + r, rect.fBottom},
&GrStyle::SimpleFill());
} else {
this->drawRect(clip, std::move(paint), aa, viewMatrix,
{rect.fLeft, rect.fTop - r, rect.fRight, rect.fBottom + r},
&GrStyle::SimpleFill());
}
return;
}
}
std::unique_ptr<GrDrawOp> op;
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
if (GrAAType::kCoverage == aaType) {
// The stroke path needs the rect to remain axis aligned (no rotation or skew).
if (viewMatrix.rectStaysRect()) {
op = GrRectOpFactory::MakeAAStroke(std::move(paint), viewMatrix, rect, stroke);
}
} else {
op = GrRectOpFactory::MakeNonAAStroke(std::move(paint), viewMatrix, rect, stroke,
aaType);
}
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
SkPath path;
path.setIsVolatile(true);
path.addRect(rect);
this->internalDrawPath(clip, std::move(paint), aa, viewMatrix, path, *style);
}
int GrRenderTargetContextPriv::maxWindowRectangles() const {
return fRenderTargetContext->fRenderTargetProxy->maxWindowRectangles(
*fRenderTargetContext->fContext->caps());
}
void GrRenderTargetContextPriv::clearStencilClip(const GrFixedClip& clip, bool insideStencilMask) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "clearStencilClip",
fRenderTargetContext->fContext);
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
std::unique_ptr<GrOp> op(GrClearStencilClipOp::Make(
clip, insideStencilMask,
fRenderTargetContext->fRenderTargetProxy.get()));
if (!op) {
return;
}
fRenderTargetContext->getRTOpList()->addOp(std::move(op), *fRenderTargetContext->caps());
}
void GrRenderTargetContextPriv::stencilPath(const GrClip& clip,
GrAAType aaType,
const SkMatrix& viewMatrix,
const GrPath* path) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "stencilPath",
fRenderTargetContext->fContext);
SkASSERT(aaType != GrAAType::kCoverage);
bool useHWAA = GrAATypeIsHW(aaType);
// TODO: extract portions of checkDraw that are relevant to path stenciling.
SkASSERT(path);
SkASSERT(fRenderTargetContext->caps()->shaderCaps()->pathRenderingSupport());
// FIXME: Use path bounds instead of this WAR once
// https://bugs.chromium.org/p/skia/issues/detail?id=5640 is resolved.
SkRect bounds = SkRect::MakeIWH(fRenderTargetContext->width(), fRenderTargetContext->height());
// Setup clip
GrAppliedClip appliedClip;
if (!clip.apply(fRenderTargetContext->fContext, fRenderTargetContext, useHWAA, true,
&appliedClip, &bounds)) {
return;
}
// Coverage AA does not make sense when rendering to the stencil buffer. The caller should never
// attempt this in a situation that would require coverage AA.
SkASSERT(!appliedClip.numClipCoverageFragmentProcessors());
fRenderTargetContext->setNeedsStencil();
std::unique_ptr<GrOp> op = GrStencilPathOp::Make(viewMatrix,
useHWAA,
path->getFillType(),
appliedClip.hasStencilClip(),
appliedClip.scissorState(),
path);
if (!op) {
return;
}
op->setClippedBounds(bounds);
fRenderTargetContext->getRTOpList()->addOp(std::move(op), *fRenderTargetContext->caps());
}
void GrRenderTargetContextPriv::stencilRect(const GrClip& clip,
const GrUserStencilSettings* ss,
GrAAType aaType,
const SkMatrix& viewMatrix,
const SkRect& rect) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "stencilRect",
fRenderTargetContext->fContext);
SkASSERT(GrAAType::kCoverage != aaType);
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
GrPaint paint;
paint.setXPFactory(GrDisableColorXPFactory::Get());
std::unique_ptr<GrDrawOp> op =
GrRectOpFactory::MakeNonAAFill(std::move(paint), viewMatrix, rect, aaType, ss);
fRenderTargetContext->addDrawOp(clip, std::move(op));
}
bool GrRenderTargetContextPriv::drawAndStencilRect(const GrClip& clip,
const GrUserStencilSettings* ss,
SkRegion::Op op,
bool invert,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& rect) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_FALSE_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "drawAndStencilRect",
fRenderTargetContext->fContext);
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
GrPaint paint;
paint.setCoverageSetOpXPFactory(op, invert);
if (fRenderTargetContext->drawFilledRect(clip, std::move(paint), aa, viewMatrix, rect, ss)) {
return true;
}
SkPath path;
path.setIsVolatile(true);
path.addRect(rect);
return this->drawAndStencilPath(clip, ss, op, invert, aa, viewMatrix, path);
}
void GrRenderTargetContext::fillRectToRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& rectToDraw,
const SkRect& localRect) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "fillRectToRect", fContext);
SkRect croppedRect = rectToDraw;
SkRect croppedLocalRect = localRect;
if (!crop_filled_rect(this->width(), this->height(), clip, viewMatrix,
&croppedRect, &croppedLocalRect)) {
return;
}
AutoCheckFlush acf(this->drawingManager());
if (GrCaps::InstancedSupport::kNone != fContext->caps()->instancedSupport()) {
gr_instanced::OpAllocator* oa = this->drawingManager()->instancingAllocator();
std::unique_ptr<GrDrawOp> op(oa->recordRect(croppedRect, viewMatrix, std::move(paint),
croppedLocalRect, aa, fInstancedPipelineInfo));
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
if (GrAAType::kCoverage != aaType) {
std::unique_ptr<GrDrawOp> op = GrRectOpFactory::MakeNonAAFillWithLocalRect(
std::move(paint), viewMatrix, croppedRect, croppedLocalRect, aaType);
this->addDrawOp(clip, std::move(op));
return;
}
std::unique_ptr<GrDrawOp> op = GrRectOpFactory::MakeAAFillWithLocalRect(
std::move(paint), viewMatrix, croppedRect, croppedLocalRect);
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
SkMatrix viewAndUnLocalMatrix;
if (!viewAndUnLocalMatrix.setRectToRect(localRect, rectToDraw, SkMatrix::kFill_ScaleToFit)) {
SkDebugf("fillRectToRect called with empty local matrix.\n");
return;
}
viewAndUnLocalMatrix.postConcat(viewMatrix);
SkPath path;
path.setIsVolatile(true);
path.addRect(localRect);
this->internalDrawPath(clip, std::move(paint), aa, viewAndUnLocalMatrix, path, GrStyle());
}
static bool must_filter(const SkRect& src, const SkRect& dst, const SkMatrix& ctm) {
// We don't currently look for 90 degree rotations, mirroring, or downscales that sample at
// texel centers.
if (!ctm.isTranslate()) {
return true;
}
if (src.width() != dst.width() || src.height() != dst.height()) {
return true;
}
// Check that the device space rectangle's fractional offset is the same as the src rectangle,
// and that therefore integers in the src image fall on integers in device space.
SkScalar x = ctm.getTranslateX(), y = ctm.getTranslateY();
x += dst.fLeft; y += dst.fTop;
x -= src.fLeft; y -= src.fTop;
return !SkScalarIsInt(x) || !SkScalarIsInt(y);
}
void GrRenderTargetContext::drawTextureAffine(const GrClip& clip, sk_sp<GrTextureProxy> proxy,
GrSamplerState::Filter filter, GrColor color,
const SkRect& srcRect, const SkRect& dstRect,
const SkMatrix& viewMatrix,
sk_sp<GrColorSpaceXform> colorSpaceXform) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawTextureAffine", fContext);
SkASSERT(!viewMatrix.hasPerspective());
if (filter != GrSamplerState::Filter::kNearest && !must_filter(srcRect, dstRect, viewMatrix)) {
filter = GrSamplerState::Filter::kNearest;
}
SkRect clippedDstRect = dstRect;
SkRect clippedSrcRect = srcRect;
if (!crop_filled_rect(this->width(), this->height(), clip, viewMatrix, &clippedDstRect,
&clippedSrcRect)) {
return;
}
bool allowSRGB = SkToBool(this->colorSpaceInfo().colorSpace());
this->addDrawOp(clip, GrTextureOp::Make(std::move(proxy), filter, color, clippedSrcRect,
clippedDstRect, viewMatrix, std::move(colorSpaceXform),
allowSRGB));
}
void GrRenderTargetContext::fillRectWithLocalMatrix(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& rectToDraw,
const SkMatrix& localMatrix) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "fillRectWithLocalMatrix", fContext);
SkRect croppedRect = rectToDraw;
if (!crop_filled_rect(this->width(), this->height(), clip, viewMatrix, &croppedRect)) {
return;
}
AutoCheckFlush acf(this->drawingManager());
if (GrCaps::InstancedSupport::kNone != fContext->caps()->instancedSupport()) {
gr_instanced::OpAllocator* oa = this->drawingManager()->instancingAllocator();
std::unique_ptr<GrDrawOp> op(oa->recordRect(croppedRect, viewMatrix, std::move(paint),
localMatrix, aa, fInstancedPipelineInfo));
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
if (GrAAType::kCoverage != aaType) {
std::unique_ptr<GrDrawOp> op = GrRectOpFactory::MakeNonAAFillWithLocalMatrix(
std::move(paint), viewMatrix, localMatrix, croppedRect, aaType);
this->addDrawOp(clip, std::move(op));
return;
}
std::unique_ptr<GrDrawOp> op = GrRectOpFactory::MakeAAFillWithLocalMatrix(
std::move(paint), viewMatrix, localMatrix, croppedRect);
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
SkMatrix viewAndUnLocalMatrix;
if (!localMatrix.invert(&viewAndUnLocalMatrix)) {
SkDebugf("fillRectWithLocalMatrix called with degenerate local matrix.\n");
return;
}
viewAndUnLocalMatrix.postConcat(viewMatrix);
SkPath path;
path.setIsVolatile(true);
path.addRect(rectToDraw);
path.transform(localMatrix);
this->internalDrawPath(clip, std::move(paint), aa, viewAndUnLocalMatrix, path, GrStyle());
}
void GrRenderTargetContext::drawVertices(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix,
sk_sp<SkVertices> vertices,
GrPrimitiveType* overridePrimType) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawVertices", fContext);
AutoCheckFlush acf(this->drawingManager());
SkASSERT(vertices);
GrAAType aaType = this->chooseAAType(GrAA::kNo, GrAllowMixedSamples::kNo);
std::unique_ptr<GrDrawOp> op = GrDrawVerticesOp::Make(
std::move(paint), std::move(vertices), viewMatrix, aaType,
this->colorSpaceInfo().isGammaCorrect(),
this->colorSpaceInfo().refColorSpaceXformFromSRGB(), overridePrimType);
this->addDrawOp(clip, std::move(op));
}
///////////////////////////////////////////////////////////////////////////////
void GrRenderTargetContext::drawAtlas(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix,
int spriteCount,
const SkRSXform xform[],
const SkRect texRect[],
const SkColor colors[]) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawAtlas", fContext);
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(GrAA::kNo, GrAllowMixedSamples::kNo);
std::unique_ptr<GrDrawOp> op = GrDrawAtlasOp::Make(std::move(paint), viewMatrix, aaType,
spriteCount, xform, texRect, colors);
this->addDrawOp(clip, std::move(op));
}
///////////////////////////////////////////////////////////////////////////////
void GrRenderTargetContext::drawRRect(const GrClip& origClip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRRect& rrect,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawRRect", fContext);
if (rrect.isEmpty()) {
return;
}
GrNoClip noclip;
const GrClip* clip = &origClip;
#ifdef SK_BUILD_FOR_ANDROID_FRAMEWORK
// The Android framework frequently clips rrects to themselves where the clip is non-aa and the
// draw is aa. Since our lower level clip code works from op bounds, which are SkRects, it
// doesn't detect that the clip can be ignored (modulo antialiasing). The following test
// attempts to mitigate the stencil clip cost but will only help when the entire clip stack
// can be ignored. We'd prefer to fix this in the framework by removing the clips calls.
SkRRect devRRect;
if (rrect.transform(viewMatrix, &devRRect) && clip->quickContains(devRRect)) {
clip = &noclip;
}
#endif
SkASSERT(!style.pathEffect()); // this should've been devolved to a path in SkGpuDevice
AutoCheckFlush acf(this->drawingManager());
const SkStrokeRec stroke = style.strokeRec();
if (GrCaps::InstancedSupport::kNone != fContext->caps()->instancedSupport() &&
stroke.isFillStyle()) {
gr_instanced::OpAllocator* oa = this->drawingManager()->instancingAllocator();
std::unique_ptr<GrDrawOp> op(
oa->recordRRect(rrect, viewMatrix, std::move(paint), aa, fInstancedPipelineInfo));
if (op) {
this->addDrawOp(*clip, std::move(op));
return;
}
}
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
if (GrAAType::kCoverage == aaType) {
const GrShaderCaps* shaderCaps = fContext->caps()->shaderCaps();
std::unique_ptr<GrDrawOp> op = GrOvalOpFactory::MakeRRectOp(std::move(paint),
viewMatrix,
rrect,
stroke,
shaderCaps);
if (op) {
this->addDrawOp(*clip, std::move(op));
return;
}
}
SkPath path;
path.setIsVolatile(true);
path.addRRect(rrect);
this->internalDrawPath(*clip, std::move(paint), aa, viewMatrix, path, style);
}
///////////////////////////////////////////////////////////////////////////////
static SkPoint3 map(const SkMatrix& m, const SkPoint3& pt) {
SkPoint3 result;
m.mapXY(pt.fX, pt.fY, (SkPoint*)&result.fX);
result.fZ = pt.fZ;
return result;
}
bool GrRenderTargetContext::drawFastShadow(const GrClip& clip,
GrColor color4ub,
const SkMatrix& viewMatrix,
const SkPath& path,
const SkDrawShadowRec& rec) {
ASSERT_SINGLE_OWNER
if (this->drawingManager()->wasAbandoned()) {
return true;
}
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawFastShadow", fContext);
// check z plane
bool tiltZPlane = SkToBool(!SkScalarNearlyZero(rec.fZPlaneParams.fX) ||
!SkScalarNearlyZero(rec.fZPlaneParams.fY));
bool skipAnalytic = SkToBool(rec.fFlags & SkShadowFlags::kGeometricOnly_ShadowFlag);
if (tiltZPlane || skipAnalytic || !viewMatrix.rectStaysRect() || !viewMatrix.isSimilarity()) {
return false;
}
SkRRect rrect;
SkRect rect;
// we can only handle rects, circles, and rrects with circular corners
bool isRRect = path.isRRect(&rrect) && rrect.isSimpleCircular() &&
rrect.radii(SkRRect::kUpperLeft_Corner).fX > SK_ScalarNearlyZero;
if (!isRRect &&
path.isOval(&rect) && SkScalarNearlyEqual(rect.width(), rect.height()) &&
rect.width() > SK_ScalarNearlyZero) {
rrect.setOval(rect);
isRRect = true;
}
if (!isRRect && path.isRect(&rect)) {
rrect.setRect(rect);
isRRect = true;
}
if (!isRRect) {
return false;
}
if (rrect.isEmpty()) {
return true;
}
AutoCheckFlush acf(this->drawingManager());
// transform light
SkPoint3 devLightPos = map(viewMatrix, rec.fLightPos);
// 1/scale
SkScalar devToSrcScale = viewMatrix.isScaleTranslate() ?
SkScalarInvert(viewMatrix[SkMatrix::kMScaleX]) :
sk_float_rsqrt(viewMatrix[SkMatrix::kMScaleX] * viewMatrix[SkMatrix::kMScaleX] +
viewMatrix[SkMatrix::kMSkewX] * viewMatrix[SkMatrix::kMSkewX]);
SkScalar occluderHeight = rec.fZPlaneParams.fZ;
GrColor4f color = GrColor4f::FromGrColor(color4ub);
bool transparent = SkToBool(rec.fFlags & SkShadowFlags::kTransparentOccluder_ShadowFlag);
bool tonalColor = SkToBool(rec.fFlags & SkShadowFlags::kTonalColor_ShadowFlag);
if (rec.fAmbientAlpha > 0) {
SkScalar devSpaceInsetWidth = SkDrawShadowMetrics::AmbientBlurRadius(occluderHeight);
const SkScalar umbraRecipAlpha = SkDrawShadowMetrics::AmbientRecipAlpha(occluderHeight);
const SkScalar devSpaceAmbientBlur = devSpaceInsetWidth * umbraRecipAlpha;
// Outset the shadow rrect to the border of the penumbra
SkScalar ambientPathOutset = devSpaceInsetWidth * devToSrcScale;
SkRRect ambientRRect;
SkRect outsetRect = rrect.rect().makeOutset(ambientPathOutset, ambientPathOutset);
// If the rrect was an oval then its outset will also be one.
// We set it explicitly to avoid errors.
if (rrect.isOval()) {
ambientRRect = SkRRect::MakeOval(outsetRect);
} else {
SkScalar outsetRad = rrect.getSimpleRadii().fX + ambientPathOutset;
ambientRRect = SkRRect::MakeRectXY(outsetRect, outsetRad, outsetRad);
}
GrColor ambientColor;
if (tonalColor) {
// with tonal color, the color only applies to the spot shadow
ambientColor = GrColorPackRGBA(0, 0, 0, 255.999f*rec.fAmbientAlpha);
} else {
ambientColor = color.mulByScalar(rec.fAmbientAlpha).toGrColor();
}
if (transparent) {
// set a large inset to force a fill
devSpaceInsetWidth = ambientRRect.width();
}
// the fraction of the blur we want to apply is devSpaceInsetWidth/devSpaceAmbientBlur,
// which is just 1/umbraRecipAlpha.
SkScalar blurClamp = SkScalarInvert(umbraRecipAlpha);
std::unique_ptr<GrDrawOp> op = GrShadowRRectOp::Make(ambientColor, viewMatrix,
ambientRRect,
devSpaceAmbientBlur,
devSpaceInsetWidth,
blurClamp);
SkASSERT(op);
this->addDrawOp(clip, std::move(op));
}
if (rec.fSpotAlpha > 0) {
SkScalar devSpaceSpotBlur;
SkScalar spotScale;
SkVector spotOffset;
SkDrawShadowMetrics::GetSpotParams(occluderHeight, devLightPos.fX, devLightPos.fY,
devLightPos.fZ, rec.fLightRadius,
&devSpaceSpotBlur, &spotScale, &spotOffset);
// handle scale of radius due to CTM
const SkScalar srcSpaceSpotBlur = devSpaceSpotBlur * devToSrcScale;
// Adjust translate for the effect of the scale.
spotOffset.fX += spotScale*viewMatrix[SkMatrix::kMTransX];
spotOffset.fY += spotScale*viewMatrix[SkMatrix::kMTransY];
// This offset is in dev space, need to transform it into source space.
SkMatrix ctmInverse;
if (viewMatrix.invert(&ctmInverse)) {
ctmInverse.mapPoints(&spotOffset, 1);
} else {
// Since the matrix is a similarity, this should never happen, but just in case...
SkDebugf("Matrix is degenerate. Will not render spot shadow correctly!\n");
SkASSERT(false);
}
// Compute the transformed shadow rrect
SkRRect spotShadowRRect;
SkMatrix shadowTransform;
shadowTransform.setScaleTranslate(spotScale, spotScale, spotOffset.fX, spotOffset.fY);
rrect.transform(shadowTransform, &spotShadowRRect);
SkScalar spotRadius = spotShadowRRect.getSimpleRadii().fX;
// Compute the insetWidth
SkScalar blurOutset = srcSpaceSpotBlur;
SkScalar insetWidth = blurOutset;
if (transparent) {
// If transparent, just do a fill
insetWidth += spotShadowRRect.width();
} else {
// For shadows, instead of using a stroke we specify an inset from the penumbra
// border. We want to extend this inset area so that it meets up with the caster
// geometry. The inset geometry will by default already be inset by the blur width.
//
// We compare the min and max corners inset by the radius between the original
// rrect and the shadow rrect. The distance between the two plus the difference
// between the scaled radius and the original radius gives the distance from the
// transformed shadow shape to the original shape in that corner. The max
// of these gives the maximum distance we need to cover.
//
// Since we are outsetting by 1/2 the blur distance, we just add the maxOffset to
// that to get the full insetWidth.
SkScalar maxOffset;
if (rrect.isRect()) {
// Manhattan distance works better for rects
maxOffset = SkTMax(SkTMax(SkTAbs(spotShadowRRect.rect().fLeft -
rrect.rect().fLeft),
SkTAbs(spotShadowRRect.rect().fTop -
rrect.rect().fTop)),
SkTMax(SkTAbs(spotShadowRRect.rect().fRight -
rrect.rect().fRight),
SkTAbs(spotShadowRRect.rect().fBottom -
rrect.rect().fBottom)));
} else {
SkScalar dr = spotRadius - rrect.getSimpleRadii().fX;
SkPoint upperLeftOffset = SkPoint::Make(spotShadowRRect.rect().fLeft -
rrect.rect().fLeft + dr,
spotShadowRRect.rect().fTop -
rrect.rect().fTop + dr);
SkPoint lowerRightOffset = SkPoint::Make(spotShadowRRect.rect().fRight -
rrect.rect().fRight - dr,
spotShadowRRect.rect().fBottom -
rrect.rect().fBottom - dr);
maxOffset = SkScalarSqrt(SkTMax(upperLeftOffset.lengthSqd(),
lowerRightOffset.lengthSqd())) + dr;
}
insetWidth += maxOffset;
}
// Outset the shadow rrect to the border of the penumbra
SkRect outsetRect = spotShadowRRect.rect().makeOutset(blurOutset, blurOutset);
if (spotShadowRRect.isOval()) {
spotShadowRRect = SkRRect::MakeOval(outsetRect);
} else {
SkScalar outsetRad = spotRadius + blurOutset;
spotShadowRRect = SkRRect::MakeRectXY(outsetRect, outsetRad, outsetRad);
}
GrColor spotColor;
if (tonalColor) {
SkScalar colorScale;
SkScalar tonalAlpha;
SkShadowUtils::ComputeTonalColorParams(color.fRGBA[0], color.fRGBA[1],
color.fRGBA[2], rec.fSpotAlpha,
&colorScale, &tonalAlpha);
color.fRGBA[0] *= colorScale;
color.fRGBA[1] *= colorScale;
color.fRGBA[2] *= colorScale;
color.fRGBA[3] = tonalAlpha;
spotColor = color.toGrColor();
} else {
spotColor = color.mulByScalar(rec.fSpotAlpha).toGrColor();
}
std::unique_ptr<GrDrawOp> op = GrShadowRRectOp::Make(spotColor, viewMatrix,
spotShadowRRect,
2.0f * devSpaceSpotBlur,
insetWidth);
SkASSERT(op);
this->addDrawOp(clip, std::move(op));
}
return true;
}
///////////////////////////////////////////////////////////////////////////////
bool GrRenderTargetContext::drawFilledDRRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRRect& origOuter,
const SkRRect& origInner) {
SkASSERT(!origInner.isEmpty());
SkASSERT(!origOuter.isEmpty());
if (GrCaps::InstancedSupport::kNone != fContext->caps()->instancedSupport()) {
gr_instanced::OpAllocator* oa = this->drawingManager()->instancingAllocator();
std::unique_ptr<GrDrawOp> op(oa->recordDRRect(
origOuter, origInner, viewMatrix, std::move(paint), aa, fInstancedPipelineInfo));
if (op) {
this->addDrawOp(clip, std::move(op));
return true;
}
}
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
GrPrimitiveEdgeType innerEdgeType, outerEdgeType;
if (GrAAType::kCoverage == aaType) {
innerEdgeType = kInverseFillAA_GrProcessorEdgeType;
outerEdgeType = kFillAA_GrProcessorEdgeType;
} else {
innerEdgeType = kInverseFillBW_GrProcessorEdgeType;
outerEdgeType = kFillBW_GrProcessorEdgeType;
}
SkTCopyOnFirstWrite<SkRRect> inner(origInner), outer(origOuter);
SkMatrix inverseVM;
if (!viewMatrix.isIdentity()) {
if (!origInner.transform(viewMatrix, inner.writable())) {
return false;
}
if (!origOuter.transform(viewMatrix, outer.writable())) {
return false;
}
if (!viewMatrix.invert(&inverseVM)) {
return false;
}
} else {
inverseVM.reset();
}
// TODO these need to be a geometry processors
std::unique_ptr<GrFragmentProcessor> innerEffect(GrRRectEffect::Make(innerEdgeType, *inner));
if (!innerEffect) {
return false;
}
std::unique_ptr<GrFragmentProcessor> outerEffect(GrRRectEffect::Make(outerEdgeType, *outer));
if (!outerEffect) {
return false;
}
paint.addCoverageFragmentProcessor(std::move(innerEffect));
paint.addCoverageFragmentProcessor(std::move(outerEffect));
SkRect bounds = outer->getBounds();
if (GrAAType::kCoverage == aaType) {
bounds.outset(SK_ScalarHalf, SK_ScalarHalf);
}
this->fillRectWithLocalMatrix(clip, std::move(paint), GrAA::kNo, SkMatrix::I(), bounds,
inverseVM);
return true;
}
void GrRenderTargetContext::drawDRRect(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRRect& outer,
const SkRRect& inner) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawDRRect", fContext);
SkASSERT(!outer.isEmpty());
SkASSERT(!inner.isEmpty());
AutoCheckFlush acf(this->drawingManager());
if (this->drawFilledDRRect(clip, std::move(paint), aa, viewMatrix, outer, inner)) {
return;
}
SkPath path;
path.setIsVolatile(true);
path.addRRect(inner);
path.addRRect(outer);
path.setFillType(SkPath::kEvenOdd_FillType);
this->internalDrawPath(clip, std::move(paint), aa, viewMatrix, path, GrStyle::SimpleFill());
}
///////////////////////////////////////////////////////////////////////////////
void GrRenderTargetContext::drawRegion(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRegion& region,
const GrStyle& style,
const GrUserStencilSettings* ss) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawRegion", fContext);
if (GrAA::kYes == aa) {
// GrRegionOp performs no antialiasing but is much faster, so here we check the matrix
// to see whether aa is really required.
if (!SkToBool(viewMatrix.getType() & ~(SkMatrix::kTranslate_Mask)) &&
SkScalarIsInt(viewMatrix.getTranslateX()) &&
SkScalarIsInt(viewMatrix.getTranslateY())) {
aa = GrAA::kNo;
}
}
bool complexStyle = !style.isSimpleFill();
if (complexStyle || GrAA::kYes == aa) {
SkPath path;
region.getBoundaryPath(&path);
return this->drawPath(clip, std::move(paint), aa, viewMatrix, path, style);
}
GrAAType aaType = this->chooseAAType(GrAA::kNo, GrAllowMixedSamples::kNo);
std::unique_ptr<GrDrawOp> op = GrRegionOp::Make(std::move(paint), viewMatrix, region, aaType,
ss);
this->addDrawOp(clip, std::move(op));
}
void GrRenderTargetContext::drawOval(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& oval,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawOval", fContext);
if (oval.isEmpty()) {
return;
}
SkASSERT(!style.pathEffect()); // this should've been devolved to a path in SkGpuDevice
AutoCheckFlush acf(this->drawingManager());
const SkStrokeRec& stroke = style.strokeRec();
if (GrCaps::InstancedSupport::kNone != fContext->caps()->instancedSupport() &&
stroke.isFillStyle()) {
gr_instanced::OpAllocator* oa = this->drawingManager()->instancingAllocator();
std::unique_ptr<GrDrawOp> op(
oa->recordOval(oval, viewMatrix, std::move(paint), aa, fInstancedPipelineInfo));
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
if (GrAAType::kCoverage == aaType) {
const GrShaderCaps* shaderCaps = fContext->caps()->shaderCaps();
std::unique_ptr<GrDrawOp> op =
GrOvalOpFactory::MakeOvalOp(std::move(paint), viewMatrix, oval, stroke, shaderCaps);
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
SkPath path;
path.setIsVolatile(true);
path.addOval(oval);
this->internalDrawPath(clip, std::move(paint), aa, viewMatrix, path, style);
}
void GrRenderTargetContext::drawArc(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkRect& oval,
SkScalar startAngle,
SkScalar sweepAngle,
bool useCenter,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawArc", fContext);
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
if (GrAAType::kCoverage == aaType) {
const GrShaderCaps* shaderCaps = fContext->caps()->shaderCaps();
std::unique_ptr<GrDrawOp> op = GrOvalOpFactory::MakeArcOp(std::move(paint),
viewMatrix,
oval,
startAngle,
sweepAngle,
useCenter,
style,
shaderCaps);
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
SkPath path;
SkPathPriv::CreateDrawArcPath(&path, oval, startAngle, sweepAngle, useCenter,
style.isSimpleFill());
this->internalDrawPath(clip, std::move(paint), aa, viewMatrix, path, style);
}
void GrRenderTargetContext::drawImageLattice(const GrClip& clip,
GrPaint&& paint,
const SkMatrix& viewMatrix,
int imageWidth,
int imageHeight,
std::unique_ptr<SkLatticeIter> iter,
const SkRect& dst) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "drawImageLattice", fContext);
AutoCheckFlush acf(this->drawingManager());
std::unique_ptr<GrDrawOp> op = GrLatticeOp::MakeNonAA(std::move(paint), viewMatrix, imageWidth,
imageHeight, std::move(iter), dst);
this->addDrawOp(clip, std::move(op));
}
GrSemaphoresSubmitted GrRenderTargetContext::prepareForExternalIO(
int numSemaphores, GrBackendSemaphore backendSemaphores[]) {
ASSERT_SINGLE_OWNER
if (this->drawingManager()->wasAbandoned()) { return GrSemaphoresSubmitted::kNo; }
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "prepareForExternalIO", fContext);
return this->drawingManager()->prepareSurfaceForExternalIO(fRenderTargetProxy.get(),
numSemaphores,
backendSemaphores);
}
bool GrRenderTargetContext::waitOnSemaphores(int numSemaphores,
const GrBackendSemaphore* waitSemaphores) {
ASSERT_SINGLE_OWNER
RETURN_FALSE_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "waitOnSemaphores", fContext);
AutoCheckFlush acf(this->drawingManager());
if (numSemaphores && !this->caps()->fenceSyncSupport()) {
return false;
}
SkTArray<sk_sp<GrSemaphore>> semaphores(numSemaphores);
for (int i = 0; i < numSemaphores; ++i) {
sk_sp<GrSemaphore> sema = fContext->resourceProvider()->wrapBackendSemaphore(
waitSemaphores[i], kAdopt_GrWrapOwnership);
std::unique_ptr<GrOp> waitOp(GrSemaphoreOp::MakeWait(sema, fRenderTargetProxy.get()));
this->getRTOpList()->addOp(std::move(waitOp), *this->caps());
}
return true;
}
void GrRenderTargetContext::insertEventMarker(const SkString& str) {
std::unique_ptr<GrOp> op(GrDebugMarkerOp::Make(fRenderTargetProxy.get(), str));
this->getRTOpList()->addOp(std::move(op), *this->caps());
}
// Can 'path' be drawn as a pair of filled nested rectangles?
static bool fills_as_nested_rects(const SkMatrix& viewMatrix, const SkPath& path, SkRect rects[2]) {
if (path.isInverseFillType()) {
return false;
}
// TODO: this restriction could be lifted if we were willing to apply
// the matrix to all the points individually rather than just to the rect
if (!viewMatrix.rectStaysRect()) {
return false;
}
SkPath::Direction dirs[2];
if (!path.isNestedFillRects(rects, dirs)) {
return false;
}
if (SkPath::kWinding_FillType == path.getFillType() && dirs[0] == dirs[1]) {
// The two rects need to be wound opposite to each other
return false;
}
// Right now, nested rects where the margin is not the same width
// all around do not render correctly
const SkScalar* outer = rects[0].asScalars();
const SkScalar* inner = rects[1].asScalars();
bool allEq = true;
SkScalar margin = SkScalarAbs(outer[0] - inner[0]);
bool allGoE1 = margin >= SK_Scalar1;
for (int i = 1; i < 4; ++i) {
SkScalar temp = SkScalarAbs(outer[i] - inner[i]);
if (temp < SK_Scalar1) {
allGoE1 = false;
}
if (!SkScalarNearlyEqual(margin, temp)) {
allEq = false;
}
}
return allEq || allGoE1;
}
void GrRenderTargetContext::drawPath(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkPath& path,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "drawPath", fContext);
if (path.isEmpty()) {
if (path.isInverseFillType()) {
this->drawPaint(clip, std::move(paint), viewMatrix);
}
return;
}
AutoCheckFlush acf(this->drawingManager());
GrAAType aaType = this->chooseAAType(aa, GrAllowMixedSamples::kNo);
if (GrAAType::kCoverage == aaType && !style.pathEffect()) {
if (style.isSimpleFill() && !path.isConvex()) {
// Concave AA paths are expensive - try to avoid them for special cases
SkRect rects[2];
if (fills_as_nested_rects(viewMatrix, path, rects)) {
std::unique_ptr<GrDrawOp> op =
GrRectOpFactory::MakeAAFillNestedRects(std::move(paint), viewMatrix, rects);
if (op) {
this->addDrawOp(clip, std::move(op));
}
// A null return indicates that there is nothing to draw in this case.
return;
}
}
SkRect ovalRect;
bool isOval = path.isOval(&ovalRect);
if (isOval && !path.isInverseFillType()) {
const GrShaderCaps* shaderCaps = fContext->caps()->shaderCaps();
std::unique_ptr<GrDrawOp> op = GrOvalOpFactory::MakeOvalOp(
std::move(paint), viewMatrix, ovalRect, style.strokeRec(), shaderCaps);
if (op) {
this->addDrawOp(clip, std::move(op));
return;
}
}
}
// Note that internalDrawPath may sw-rasterize the path into a scratch texture.
// Scratch textures can be recycled after they are returned to the texture
// cache. This presents a potential hazard for buffered drawing. However,
// the writePixels that uploads to the scratch will perform a flush so we're
// OK.
this->internalDrawPath(clip, std::move(paint), aa, viewMatrix, path, style);
}
bool GrRenderTargetContextPriv::drawAndStencilPath(const GrClip& clip,
const GrUserStencilSettings* ss,
SkRegion::Op op,
bool invert,
GrAA aa,
const SkMatrix& viewMatrix,
const SkPath& path) {
ASSERT_SINGLE_OWNER_PRIV
RETURN_FALSE_IF_ABANDONED_PRIV
SkDEBUGCODE(fRenderTargetContext->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContextPriv", "drawAndStencilPath",
fRenderTargetContext->fContext);
if (path.isEmpty() && path.isInverseFillType()) {
this->drawAndStencilRect(clip, ss, op, invert, GrAA::kNo, SkMatrix::I(),
SkRect::MakeIWH(fRenderTargetContext->width(),
fRenderTargetContext->height()));
return true;
}
AutoCheckFlush acf(fRenderTargetContext->drawingManager());
// An Assumption here is that path renderer would use some form of tweaking
// the src color (either the input alpha or in the frag shader) to implement
// aa. If we have some future driver-mojo path AA that can do the right
// thing WRT to the blend then we'll need some query on the PR.
GrAAType aaType = fRenderTargetContext->chooseAAType(aa, GrAllowMixedSamples::kNo);
bool hasUserStencilSettings = !ss->isUnused();
SkIRect clipConservativeBounds;
clip.getConservativeBounds(fRenderTargetContext->width(), fRenderTargetContext->height(),
&clipConservativeBounds, nullptr);
GrShape shape(path, GrStyle::SimpleFill());
GrPathRenderer::CanDrawPathArgs canDrawArgs;
canDrawArgs.fCaps = fRenderTargetContext->drawingManager()->getContext()->caps();
canDrawArgs.fViewMatrix = &viewMatrix;
canDrawArgs.fShape = &shape;
canDrawArgs.fClipConservativeBounds = &clipConservativeBounds;
canDrawArgs.fAAType = aaType;
canDrawArgs.fHasUserStencilSettings = hasUserStencilSettings;
// Don't allow the SW renderer
GrPathRenderer* pr = fRenderTargetContext->drawingManager()->getPathRenderer(
canDrawArgs, false, GrPathRendererChain::DrawType::kStencilAndColor);
if (!pr) {
return false;
}
GrPaint paint;
paint.setCoverageSetOpXPFactory(op, invert);
GrPathRenderer::DrawPathArgs args{fRenderTargetContext->drawingManager()->getContext(),
std::move(paint),
ss,
fRenderTargetContext,
&clip,
&clipConservativeBounds,
&viewMatrix,
&shape,
aaType,
fRenderTargetContext->colorSpaceInfo().isGammaCorrect()};
pr->drawPath(args);
return true;
}
SkBudgeted GrRenderTargetContextPriv::isBudgeted() const {
ASSERT_SINGLE_OWNER_PRIV
if (fRenderTargetContext->wasAbandoned()) {
return SkBudgeted::kNo;
}
SkDEBUGCODE(fRenderTargetContext->validate();)
return fRenderTargetContext->fRenderTargetProxy->isBudgeted();
}
void GrRenderTargetContext::internalDrawPath(const GrClip& clip,
GrPaint&& paint,
GrAA aa,
const SkMatrix& viewMatrix,
const SkPath& path,
const GrStyle& style) {
ASSERT_SINGLE_OWNER
RETURN_IF_ABANDONED
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "internalDrawPath", fContext);
SkIRect clipConservativeBounds;
clip.getConservativeBounds(this->width(), this->height(), &clipConservativeBounds, nullptr);
SkASSERT(!path.isEmpty());
GrShape shape;
// NVPR cannot handle hairlines, so this would get picked up by a different stencil and
// cover path renderer (i.e. default path renderer). The hairline renderer produces much
// smoother hairlines than MSAA.
GrAllowMixedSamples allowMixedSamples =
style.isSimpleHairline() ? GrAllowMixedSamples::kNo : GrAllowMixedSamples::kYes;
GrAAType aaType = this->chooseAAType(aa, allowMixedSamples);
GrPathRenderer::CanDrawPathArgs canDrawArgs;
canDrawArgs.fCaps = this->drawingManager()->getContext()->caps();
canDrawArgs.fViewMatrix = &viewMatrix;
canDrawArgs.fShape = &shape;
canDrawArgs.fClipConservativeBounds = &clipConservativeBounds;
canDrawArgs.fHasUserStencilSettings = false;
GrPathRenderer* pr;
static constexpr GrPathRendererChain::DrawType kType = GrPathRendererChain::DrawType::kColor;
do {
shape = GrShape(path, style);
if (shape.isEmpty() && !shape.inverseFilled()) {
return;
}
canDrawArgs.fAAType = aaType;
// Try a 1st time without applying any of the style to the geometry (and barring sw)
pr = this->drawingManager()->getPathRenderer(canDrawArgs, false, kType);
SkScalar styleScale = GrStyle::MatrixToScaleFactor(viewMatrix);
if (!pr && shape.style().pathEffect()) {
// It didn't work above, so try again with the path effect applied.
shape = shape.applyStyle(GrStyle::Apply::kPathEffectOnly, styleScale);
if (shape.isEmpty()) {
return;
}
pr = this->drawingManager()->getPathRenderer(canDrawArgs, false, kType);
}
if (!pr) {
if (shape.style().applies()) {
shape = shape.applyStyle(GrStyle::Apply::kPathEffectAndStrokeRec, styleScale);
if (shape.isEmpty()) {
return;
}
}
// This time, allow SW renderer
pr = this->drawingManager()->getPathRenderer(canDrawArgs, true, kType);
}
if (!pr && GrAATypeIsHW(aaType)) {
// There are exceptional cases where we may wind up falling back to coverage based AA
// when the target is MSAA (e.g. through disabling path renderers via GrContextOptions).
aaType = GrAAType::kCoverage;
} else {
break;
}
} while(true);
if (!pr) {
#ifdef SK_DEBUG
SkDebugf("Unable to find path renderer compatible with path.\n");
#endif
return;
}
GrPathRenderer::DrawPathArgs args{this->drawingManager()->getContext(),
std::move(paint),
&GrUserStencilSettings::kUnused,
this,
&clip,
&clipConservativeBounds,
&viewMatrix,
&shape,
aaType,
this->colorSpaceInfo().isGammaCorrect()};
pr->drawPath(args);
}
static void op_bounds(SkRect* bounds, const GrOp* op) {
*bounds = op->bounds();
if (op->hasZeroArea()) {
if (op->hasAABloat()) {
bounds->outset(0.5f, 0.5f);
} else {
// We don't know which way the particular GPU will snap lines or points at integer
// coords. So we ensure that the bounds is large enough for either snap.
SkRect before = *bounds;
bounds->roundOut(bounds);
if (bounds->fLeft == before.fLeft) {
bounds->fLeft -= 1;
}
if (bounds->fTop == before.fTop) {
bounds->fTop -= 1;
}
if (bounds->fRight == before.fRight) {
bounds->fRight += 1;
}
if (bounds->fBottom == before.fBottom) {
bounds->fBottom += 1;
}
}
}
}
uint32_t GrRenderTargetContext::addDrawOp(const GrClip& clip, std::unique_ptr<GrDrawOp> op) {
ASSERT_SINGLE_OWNER
if (this->drawingManager()->wasAbandoned()) {
return SK_InvalidUniqueID;
}
SkDEBUGCODE(this->validate();)
GR_CREATE_TRACE_MARKER_CONTEXT("GrRenderTargetContext", "addDrawOp", fContext);
// Setup clip
SkRect bounds;
op_bounds(&bounds, op.get());
GrAppliedClip appliedClip;
GrDrawOp::FixedFunctionFlags fixedFunctionFlags = op->fixedFunctionFlags();
if (!clip.apply(fContext, this, fixedFunctionFlags & GrDrawOp::FixedFunctionFlags::kUsesHWAA,
fixedFunctionFlags & GrDrawOp::FixedFunctionFlags::kUsesStencil, &appliedClip,
&bounds)) {
return SK_InvalidUniqueID;
}
if (fixedFunctionFlags & GrDrawOp::FixedFunctionFlags::kUsesStencil ||
appliedClip.hasStencilClip()) {
this->getOpList()->setStencilLoadOp(GrLoadOp::kClear);
this->setNeedsStencil();
}
GrPixelConfigIsClamped dstIsClamped =
GrGetPixelConfigIsClamped(this->colorSpaceInfo().config());
GrXferProcessor::DstProxy dstProxy;
if (GrDrawOp::RequiresDstTexture::kYes == op->finalize(*this->caps(), &appliedClip,
dstIsClamped)) {
if (!this->setupDstProxy(this->asRenderTargetProxy(), clip, op->bounds(), &dstProxy)) {
return SK_InvalidUniqueID;
}
}
op->setClippedBounds(bounds);
return this->getRTOpList()->addOp(std::move(op), *this->caps(),
std::move(appliedClip), dstProxy);
}
bool GrRenderTargetContext::setupDstProxy(GrRenderTargetProxy* rtProxy, const GrClip& clip,
const SkRect& opBounds,
GrXferProcessor::DstProxy* dstProxy) {
if (this->caps()->textureBarrierSupport()) {
if (GrTextureProxy* texProxy = rtProxy->asTextureProxy()) {
// The render target is a texture, so we can read from it directly in the shader. The XP
// will be responsible to detect this situation and request a texture barrier.
dstProxy->setProxy(sk_ref_sp(texProxy));
dstProxy->setOffset(0, 0);
return true;
}
}
SkIRect copyRect = SkIRect::MakeWH(rtProxy->width(), rtProxy->height());
SkIRect clippedRect;
clip.getConservativeBounds(rtProxy->width(), rtProxy->height(), &clippedRect);
SkIRect drawIBounds;
opBounds.roundOut(&drawIBounds);
// Cover up for any precision issues by outsetting the op bounds a pixel in each direction.
drawIBounds.outset(1, 1);
if (!clippedRect.intersect(drawIBounds)) {
#ifdef SK_DEBUG
GrCapsDebugf(this->caps(), "setupDstTexture: Missed an early reject bailing on draw.");
#endif
return false;
}
// MSAA consideration: When there is support for reading MSAA samples in the shader we could
// have per-sample dst values by making the copy multisampled.
GrSurfaceDesc desc;
bool rectsMustMatch = false;
bool disallowSubrect = false;
if (!this->caps()->initDescForDstCopy(rtProxy, &desc, &rectsMustMatch, &disallowSubrect)) {
desc.fFlags = kRenderTarget_GrSurfaceFlag;
desc.fOrigin = kBottomLeft_GrSurfaceOrigin;
desc.fConfig = rtProxy->config();
}
if (!disallowSubrect) {
copyRect = clippedRect;
}
SkIPoint dstPoint, dstOffset;
SkBackingFit fit;
if (rectsMustMatch) {
SkASSERT(desc.fOrigin == rtProxy->origin());
desc.fWidth = rtProxy->width();
desc.fHeight = rtProxy->height();
dstPoint = {copyRect.fLeft, copyRect.fTop};
dstOffset = {0, 0};
fit = SkBackingFit::kExact;
} else {
desc.fWidth = copyRect.width();
desc.fHeight = copyRect.height();
dstPoint = {0, 0};
dstOffset = {copyRect.fLeft, copyRect.fTop};
fit = SkBackingFit::kApprox;
}
sk_sp<GrSurfaceContext> sContext = fContext->contextPriv().makeDeferredSurfaceContext(
desc,
GrMipMapped::kNo,
fit,
SkBudgeted::kYes);
if (!sContext) {
SkDebugf("setupDstTexture: surfaceContext creation failed.\n");
return false;
}
if (!sContext->copy(rtProxy, copyRect, dstPoint)) {
SkDebugf("setupDstTexture: copy failed.\n");
return false;
}
dstProxy->setProxy(sContext->asTextureProxyRef());
dstProxy->setOffset(dstOffset);
return true;
}