cef213c97e
Bug: skia: Change-Id: I0dbe421ebd17ef7d21fd2f4f027d2a3bdcf04b7b Reviewed-on: https://skia-review.googlesource.com/14031 Reviewed-by: Robert Phillips <robertphillips@google.com> Commit-Queue: Greg Daniel <egdaniel@google.com>
102 lines
2.8 KiB
C++
102 lines
2.8 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 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 ||
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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 nullptr; }
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virtual const GrTexture* asTexture() const { return nullptr; }
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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 nullptr; }
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virtual const GrRenderTarget* asRenderTarget() const { return nullptr; }
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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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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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}
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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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typedef GrGpuResource INHERITED;
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};
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#endif
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