| /* |
| * Copyright 2016 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| #ifndef GrSurfaceContext_DEFINED |
| #define GrSurfaceContext_DEFINED |
| |
| #include "../private/GrSurfaceProxy.h" |
| |
| #include "SkRefCnt.h" |
| |
| class GrAuditTrail; |
| class GrContext; |
| class GrSingleOwner; |
| class GrSurface; |
| struct SkIPoint; |
| struct SkIRect; |
| |
| /** |
| * A helper object to orchestrate commands for a particular surface |
| */ |
| class SK_API GrSurfaceContext : public SkRefCnt { |
| public: |
| ~GrSurfaceContext() override {} |
| |
| /* |
| * Copy 'src' into the proxy backing this context |
| * @param src src of pixels |
| * @param srcRect the subset of 'src' to copy |
| * @param dstPoint the origin of the 'srcRect' in the destination coordinate space |
| * @return true if the copy succeeded; false otherwise |
| * |
| * Note: Notionally, 'srcRect' is clipped to 'src's extent with 'dstPoint' being adjusted. |
| * Then the 'srcRect' offset by 'dstPoint' is clipped against the dst's extent. |
| * The end result is only valid src pixels and dst pixels will be touched but the copied |
| * regions will not be shifted. |
| */ |
| bool copy(GrSurfaceProxy* src, const SkIRect& srcRect, const SkIPoint& dstPoint) { |
| return this->onCopy(src, srcRect, dstPoint); |
| } |
| |
| bool copy(GrSurfaceProxy* src) { |
| return this->onCopy(src, |
| SkIRect::MakeWH(src->width(), src->height()), |
| SkIPoint::Make(0, 0)); |
| } |
| |
| // TODO: this is virtual b.c. this object doesn't have a pointer to the wrapped GrSurfaceProxy? |
| virtual GrSurfaceProxy* asDeferredSurface() = 0; |
| |
| GrAuditTrail* auditTrail() { return fAuditTrail; } |
| |
| protected: |
| GrSurfaceContext(GrContext*, GrAuditTrail*, GrSingleOwner*); |
| |
| SkDEBUGCODE(GrSingleOwner* singleOwner() { return fSingleOwner; }) |
| |
| GrContext* fContext; |
| GrAuditTrail* fAuditTrail; |
| |
| // In debug builds we guard against improper thread handling |
| SkDEBUGCODE(mutable GrSingleOwner* fSingleOwner;) |
| |
| private: |
| virtual bool onCopy(GrSurfaceProxy* src, |
| const SkIRect& srcRect, |
| const SkIPoint& dstPoint) = 0; |
| |
| typedef SkRefCnt INHERITED; |
| }; |
| |
| #endif |