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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.
*/
#ifndef GrDrawingManager_DEFINED
#define GrDrawingManager_DEFINED
#include "GrPathRenderer.h"
#include "GrPathRendererChain.h"
#include "GrRenderTargetOpList.h"
#include "GrResourceCache.h"
#include "SkTArray.h"
#include "text/GrAtlasTextContext.h"
class GrContext;
class GrCoverageCountingPathRenderer;
class GrOnFlushCallbackObject;
class GrRenderTargetContext;
class GrRenderTargetProxy;
class GrSingleOWner;
class GrSoftwarePathRenderer;
class GrTextureContext;
class GrTextureOpList;
// The GrDrawingManager allocates a new GrRenderTargetContext for each GrRenderTarget
// but all of them still land in the same GrOpList!
//
// In the future this class will allocate a new GrRenderTargetContext for
// each GrRenderTarget/GrOpList and manage the DAG.
class GrDrawingManager {
public:
~GrDrawingManager();
bool wasAbandoned() const { return fAbandoned; }
void freeGpuResources();
sk_sp<GrRenderTargetContext> makeRenderTargetContext(sk_sp<GrSurfaceProxy>,
sk_sp<SkColorSpace>,
const SkSurfaceProps*,
bool managedOpList = true);
sk_sp<GrTextureContext> makeTextureContext(sk_sp<GrSurfaceProxy>, sk_sp<SkColorSpace>);
// The caller automatically gets a ref on the returned opList. It must
// be balanced by an unref call.
// A managed opList is controlled by the drawing manager (i.e., sorted & flushed with the
// other). An unmanaged one is created and used by the onFlushCallback.
sk_sp<GrRenderTargetOpList> newRTOpList(GrRenderTargetProxy* rtp, bool managedOpList);
sk_sp<GrTextureOpList> newTextureOpList(GrTextureProxy* textureProxy);
GrContext* getContext() { return fContext; }
GrAtlasTextContext* getAtlasTextContext();
GrPathRenderer* getPathRenderer(const GrPathRenderer::CanDrawPathArgs& args,
bool allowSW,
GrPathRendererChain::DrawType drawType,
GrPathRenderer::StencilSupport* stencilSupport = nullptr);
// Returns a direct pointer to the coverage counting path renderer, or null if it is not
// supported and turned on.
GrCoverageCountingPathRenderer* getCoverageCountingPathRenderer();
void flushIfNecessary() {
if (fContext->contextPriv().getResourceCache()->requestsFlush()) {
this->internalFlush(nullptr, GrResourceCache::kCacheRequested, 0, nullptr);
}
}
static bool ProgramUnitTest(GrContext* context, int maxStages, int maxLevels);
GrSemaphoresSubmitted prepareSurfaceForExternalIO(GrSurfaceProxy*,
int numSemaphores,
GrBackendSemaphore backendSemaphores[]);
void addOnFlushCallbackObject(GrOnFlushCallbackObject*);
void testingOnly_removeOnFlushCallbackObject(GrOnFlushCallbackObject*);
private:
GrDrawingManager(GrContext* context,
const GrPathRendererChain::Options& optionsForPathRendererChain,
const GrAtlasTextContext::Options& optionsForAtlasTextContext,
GrSingleOwner* singleOwner)
: fContext(context)
, fOptionsForPathRendererChain(optionsForPathRendererChain)
, fOptionsForAtlasTextContext(optionsForAtlasTextContext)
, fSingleOwner(singleOwner)
, fAbandoned(false)
, fAtlasTextContext(nullptr)
, fPathRendererChain(nullptr)
, fSoftwarePathRenderer(nullptr)
, fFlushing(false) {}
void abandon();
void cleanup();
// return true if any opLists were actually executed; false otherwise
bool executeOpLists(int startIndex, int stopIndex, GrOpFlushState*);
GrSemaphoresSubmitted flush(GrSurfaceProxy* proxy,
int numSemaphores = 0,
GrBackendSemaphore backendSemaphores[] = nullptr) {
return this->internalFlush(proxy, GrResourceCache::FlushType::kExternal,
numSemaphores, backendSemaphores);
}
GrSemaphoresSubmitted internalFlush(GrSurfaceProxy*,
GrResourceCache::FlushType,
int numSemaphores,
GrBackendSemaphore backendSemaphores[]);
friend class GrContext; // for access to: ctor, abandon, reset & flush
friend class GrContextPriv; // access to: flush
friend class GrOnFlushResourceProvider; // this is just a shallow wrapper around this class
static const int kNumPixelGeometries = 5; // The different pixel geometries
static const int kNumDFTOptions = 2; // DFT or no DFT
GrContext* fContext;
GrPathRendererChain::Options fOptionsForPathRendererChain;
GrAtlasTextContext::Options fOptionsForAtlasTextContext;
// In debug builds we guard against improper thread handling
GrSingleOwner* fSingleOwner;
bool fAbandoned;
SkTArray<sk_sp<GrOpList>> fOpLists;
// These are the IDs of the opLists currently being flushed (in internalFlush)
SkSTArray<8, uint32_t, true> fFlushingOpListIDs;
// These are the new opLists generated by the onFlush CBs
SkSTArray<8, sk_sp<GrOpList>> fOnFlushCBOpLists;
std::unique_ptr<GrAtlasTextContext> fAtlasTextContext;
GrPathRendererChain* fPathRendererChain;
GrSoftwarePathRenderer* fSoftwarePathRenderer;
GrTokenTracker fTokenTracker;
bool fFlushing;
SkTArray<GrOnFlushCallbackObject*> fOnFlushCBObjects;
};
#endif
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