e78b7259c3
This is in service of: https://skia-review.googlesource.com/c/11125/ (Add parallel proxyID to StencilOps & RenderTargetOpList) where I want a better choke point for texture creation to improve discard handling. This is a re-reland of: https://skia-review.googlesource.com/c/11200/ (Rm readPixels from GrSurface & move read/writeSurfacePixels to GrContextPriv) Change-Id: Icfb9dd223418dd460405efd2bfd9d1c356beed1a Reviewed-on: https://skia-review.googlesource.com/11412 Reviewed-by: Robert Phillips <robertphillips@google.com> Commit-Queue: Robert Phillips <robertphillips@google.com>
134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
/*
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* Copyright 2012 Google Inc.
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*
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*/
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#ifndef GrSurface_DEFINED
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#define GrSurface_DEFINED
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#include "GrTypes.h"
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#include "GrGpuResource.h"
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#include "SkImageInfo.h"
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#include "SkRect.h"
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class GrOpList;
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class GrRenderTarget;
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class GrSurfacePriv;
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class GrTexture;
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class SK_API GrSurface : public GrGpuResource {
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public:
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/**
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* Retrieves the width of the surface.
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*/
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int width() const { return fDesc.fWidth; }
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/**
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* Retrieves the height of the surface.
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*/
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int height() const { return fDesc.fHeight; }
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/**
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* Helper that gets the width and height of the surface as a bounding rectangle.
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*/
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SkRect getBoundsRect() const { return SkRect::MakeIWH(this->width(), this->height()); }
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GrSurfaceOrigin origin() const {
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SkASSERT(kTopLeft_GrSurfaceOrigin == fDesc.fOrigin || kBottomLeft_GrSurfaceOrigin == fDesc.fOrigin);
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return fDesc.fOrigin;
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}
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/**
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* Retrieves the pixel config specified when the surface was created.
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* For render targets this can be kUnknown_GrPixelConfig
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* if client asked us to render to a target that has a pixel
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* config that isn't equivalent with one of our configs.
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*/
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GrPixelConfig config() const { return fDesc.fConfig; }
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/**
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* Return the descriptor describing the surface
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*/
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const GrSurfaceDesc& desc() const { return fDesc; }
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/**
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* @return the texture associated with the surface, may be NULL.
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*/
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virtual GrTexture* asTexture() { return NULL; }
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virtual const GrTexture* asTexture() const { return NULL; }
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/**
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* @return the render target underlying this surface, may be NULL.
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*/
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virtual GrRenderTarget* asRenderTarget() { return NULL; }
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virtual const GrRenderTarget* asRenderTarget() const { return NULL; }
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/** Access methods that are only to be used within Skia code. */
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inline GrSurfacePriv surfacePriv();
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inline const GrSurfacePriv surfacePriv() const;
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typedef void* ReleaseCtx;
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typedef void (*ReleaseProc)(ReleaseCtx);
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void setRelease(ReleaseProc proc, ReleaseCtx ctx) {
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fReleaseProc = proc;
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fReleaseCtx = ctx;
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}
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void setLastOpList(GrOpList* opList);
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GrOpList* getLastOpList() { return fLastOpList; }
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static size_t WorstCaseSize(const GrSurfaceDesc& desc, bool useNextPow2 = false);
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static size_t ComputeSize(const GrSurfaceDesc& desc, int colorSamplesPerPixel,
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bool hasMIPMaps, bool useNextPow2 = false);
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protected:
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// Methods made available via GrSurfacePriv
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bool hasPendingRead() const;
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bool hasPendingWrite() const;
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bool hasPendingIO() const;
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// Provides access to methods that should be public within Skia code.
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friend class GrSurfacePriv;
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GrSurface(GrGpu* gpu, const GrSurfaceDesc& desc)
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: INHERITED(gpu)
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, fDesc(desc)
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, fReleaseProc(NULL)
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, fReleaseCtx(NULL)
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, fLastOpList(nullptr) {
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}
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~GrSurface() override;
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GrSurfaceDesc fDesc;
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void onRelease() override;
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void onAbandon() override;
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private:
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void invokeReleaseProc() {
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if (fReleaseProc) {
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fReleaseProc(fReleaseCtx);
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fReleaseProc = NULL;
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}
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}
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ReleaseProc fReleaseProc;
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ReleaseCtx fReleaseCtx;
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// The last opList that wrote to or is currently going to write to this surface
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// The opList can be closed (e.g., no render target or texture context is currently bound
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// to this renderTarget or texture).
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// This back-pointer is required so that we can add a dependancy between
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// the opList used to create the current contents of this surface
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// and the opList of a destination surface to which this one is being drawn or copied.
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GrOpList* fLastOpList;
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typedef GrGpuResource INHERITED;
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};
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#endif
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