| /* |
| * Copyright 2012 Google Inc. |
| * |
| * Use of this source code is governed by a BSD-style license that can be |
| * found in the LICENSE file. |
| */ |
| |
| |
| #ifndef GrSurface_DEFINED |
| #define GrSurface_DEFINED |
| |
| #include "GrTypes.h" |
| #include "GrGpuResource.h" |
| #include "SkImageInfo.h" |
| #include "SkRect.h" |
| |
| class GrRenderTarget; |
| class GrSurfacePriv; |
| class GrTexture; |
| |
| class SK_API GrSurface : public GrGpuResource { |
| public: |
| /** |
| * Retrieves the width of the surface. |
| */ |
| int width() const { return fWidth; } |
| |
| /** |
| * Retrieves the height of the surface. |
| */ |
| int height() const { return fHeight; } |
| |
| /** |
| * Helper that gets the width and height of the surface as a bounding rectangle. |
| */ |
| SkRect getBoundsRect() const { return SkRect::MakeIWH(this->width(), this->height()); } |
| |
| GrSurfaceOrigin origin() const { |
| SkASSERT(kTopLeft_GrSurfaceOrigin == fOrigin || kBottomLeft_GrSurfaceOrigin == fOrigin); |
| return fOrigin; |
| } |
| |
| /** |
| * Retrieves the pixel config specified when the surface was created. |
| * For render targets this can be kUnknown_GrPixelConfig |
| * if client asked us to render to a target that has a pixel |
| * config that isn't equivalent with one of our configs. |
| */ |
| GrPixelConfig config() const { return fConfig; } |
| |
| /** |
| * @return the texture associated with the surface, may be null. |
| */ |
| virtual GrTexture* asTexture() { return nullptr; } |
| virtual const GrTexture* asTexture() const { return nullptr; } |
| |
| /** |
| * @return the render target underlying this surface, may be null. |
| */ |
| virtual GrRenderTarget* asRenderTarget() { return nullptr; } |
| virtual const GrRenderTarget* asRenderTarget() const { return nullptr; } |
| |
| /** Access methods that are only to be used within Skia code. */ |
| inline GrSurfacePriv surfacePriv(); |
| inline const GrSurfacePriv surfacePriv() const; |
| |
| static size_t WorstCaseSize(const GrSurfaceDesc& desc, bool useNextPow2 = false); |
| static size_t ComputeSize(GrPixelConfig config, int width, int height, int colorSamplesPerPixel, |
| bool hasMIPMaps, bool useNextPow2 = false); |
| |
| protected: |
| // Methods made available via GrSurfacePriv |
| bool hasPendingRead() const; |
| bool hasPendingWrite() const; |
| bool hasPendingIO() const; |
| |
| // Provides access to methods that should be public within Skia code. |
| friend class GrSurfacePriv; |
| |
| GrSurface(GrGpu* gpu, const GrSurfaceDesc& desc) |
| : INHERITED(gpu) |
| , fConfig(desc.fConfig) |
| , fWidth(desc.fWidth) |
| , fHeight(desc.fHeight) |
| , fOrigin(desc.fOrigin) {} |
| ~GrSurface() override {} |
| |
| |
| void onRelease() override; |
| void onAbandon() override; |
| |
| private: |
| GrPixelConfig fConfig; |
| int fWidth; |
| int fHeight; |
| GrSurfaceOrigin fOrigin; |
| |
| typedef GrGpuResource INHERITED; |
| }; |
| |
| #endif |