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/*
* Copyright 2010 Google Inc.
*
* Use of this source code is governed by a BSD-style license that can be
* found in the LICENSE file.
*/
#ifndef GrRenderTargetOpList_DEFINED
#define GrRenderTargetOpList_DEFINED
#include "GrAppliedClip.h"
#include "GrOpList.h"
#include "GrPathRendering.h"
#include "GrPrimitiveProcessor.h"
#include "ops/GrOp.h"
#include "SkArenaAlloc.h"
#include "SkClipStack.h"
#include "SkMatrix.h"
#include "SkStringUtils.h"
#include "SkStrokeRec.h"
#include "SkTArray.h"
#include "SkTLazy.h"
#include "SkTypes.h"
class GrAuditTrail;
class GrClearOp;
class GrCaps;
class GrRenderTargetProxy;
class GrRenderTargetOpList final : public GrOpList {
private:
using DstProxy = GrXferProcessor::DstProxy;
public:
GrRenderTargetOpList(GrResourceProvider*, GrRenderTargetProxy*, GrAuditTrail*);
~GrRenderTargetOpList() override;
void makeClosed(const GrCaps& caps) override {
if (this->isClosed()) {
return;
}
this->forwardCombine(caps);
INHERITED::makeClosed(caps);
}
bool isEmpty() const { return fRecordedOps.empty(); }
/**
* Empties the draw buffer of any queued up draws.
*/
void endFlush() override;
/**
* Together these two functions flush all queued up draws to GrCommandBuffer. The return value
* of executeOps() indicates whether any commands were actually issued to the GPU.
*/
void onPrepare(GrOpFlushState* flushState) override;
bool onExecute(GrOpFlushState* flushState) override;
uint32_t addOp(std::unique_ptr<GrOp> op, const GrCaps& caps) {
auto addDependency = [ &caps, this ] (GrSurfaceProxy* p) {
this->addDependency(p, caps);
};
op->visitProxies(addDependency);
this->recordOp(std::move(op), caps);
return this->uniqueID();
}
uint32_t addOp(std::unique_ptr<GrOp> op, const GrCaps& caps,
GrAppliedClip&& clip, const DstProxy& dstProxy) {
auto addDependency = [ &caps, this ] (GrSurfaceProxy* p) {
this->addDependency(p, caps);
};
op->visitProxies(addDependency);
clip.visitProxies(addDependency);
this->recordOp(std::move(op), caps, clip.doesClip() ? &clip : nullptr, &dstProxy);
return this->uniqueID();
}
void discard();
/** Clears the entire render target */
void fullClear(const GrCaps& caps, GrColor color);
/**
* Copies a pixel rectangle from one surface to another. This call may finalize
* reserved vertex/index data (as though a draw call was made). The src pixels
* copied are specified by srcRect. They are copied to a rect of the same
* size in dst with top left at dstPoint. If the src rect is clipped by the
* src bounds then pixel values in the dst rect corresponding to area clipped
* by the src rect are not overwritten. This method is not guaranteed to succeed
* depending on the type of surface, configs, etc, and the backend-specific
* limitations.
*/
bool copySurface(const GrCaps& caps,
GrSurfaceProxy* dst,
GrSurfaceProxy* src,
const SkIRect& srcRect,
const SkIPoint& dstPoint) override;
GrRenderTargetOpList* asRenderTargetOpList() override { return this; }
SkDEBUGCODE(void dump(bool printDependencies) const override;)
SkDEBUGCODE(int numOps() const override { return fRecordedOps.count(); })
SkDEBUGCODE(int numClips() const override { return fNumClips; })
SkDEBUGCODE(void visitProxies_debugOnly(const GrOp::VisitProxyFunc&) const;)
private:
friend class GrRenderTargetContextPriv; // for stencil clip state. TODO: this is invasive
struct RecordedOp {
RecordedOp(std::unique_ptr<GrOp> op, GrAppliedClip* appliedClip, const DstProxy* dstProxy)
: fOp(std::move(op)), fAppliedClip(appliedClip) {
if (dstProxy) {
fDstProxy = *dstProxy;
}
}
void visitProxies(const GrOp::VisitProxyFunc& func) const {
if (fOp) {
fOp->visitProxies(func);
}
if (fDstProxy.proxy()) {
func(fDstProxy.proxy());
}
if (fAppliedClip) {
fAppliedClip->visitProxies(func);
}
}
std::unique_ptr<GrOp> fOp;
DstProxy fDstProxy;
GrAppliedClip* fAppliedClip;
};
void purgeOpsWithUninstantiatedProxies() override;
void gatherProxyIntervals(GrResourceAllocator*) const override;
void recordOp(std::unique_ptr<GrOp>, const GrCaps& caps,
GrAppliedClip* = nullptr, const DstProxy* = nullptr);
void forwardCombine(const GrCaps&);
// If this returns true then b has been merged into a's op.
bool combineIfPossible(const RecordedOp& a, GrOp* b, const GrAppliedClip* bClip,
const DstProxy* bDstTexture, const GrCaps&);
uint32_t fLastClipStackGenID;
SkIRect fLastDevClipBounds;
int fLastClipNumAnalyticFPs;
// For ops/opList we have mean: 5 stdDev: 28
SkSTArray<5, RecordedOp, true> fRecordedOps;
// MDB TODO: 4096 for the first allocation of the clip space will be huge overkill.
// Gather statistics to determine the correct size.
SkArenaAlloc fClipAllocator{4096};
SkDEBUGCODE(int fNumClips;)
typedef GrOpList INHERITED;
};
#endif
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