Make "priv" classes for GrTexure and GrSurface.

include/gpu/GrTexture.h

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrTexture_DEFINED
 #define GrTexture_DEFINED
 
 #include "GrSurface.h"
 #include "GrRenderTarget.h"
 #include "SkPoint.h"
 #include "SkRefCnt.h"
 
 class GrResourceKey;
 class GrTextureParams;
-class GrTextureImpl;
+class GrTexturePriv;
 
 class GrTexture : public GrSurface {
 public:
     /**
      *  Approximate number of bytes used by the texture
      */
     virtual size_t gpuMemorySize() const SK_OVERRIDE;
 
     // GrSurface overrides
     virtual bool readPixels(int left, int top, int width, int height,
                             GrPixelConfig config,
                             void* buffer,
                             size_t rowBytes = 0,
                             uint32_t pixelOpsFlags = 0) SK_OVERRIDE;
 
     virtual void writePixels(int left, int top, int width, int height,
                              GrPixelConfig config,
                              const void* buffer,
                              size_t rowBytes = 0,
                              uint32_t pixelOpsFlags = 0) SK_OVERRIDE;
 
     virtual GrTexture* asTexture() SK_OVERRIDE { return this; }
     virtual const GrTexture* asTexture() const SK_OVERRIDE { return this; }
     virtual GrRenderTarget* asRenderTarget() SK_OVERRIDE { return fRenderTarget.get(); }
     virtual const GrRenderTarget* asRenderTarget() const SK_OVERRIDE { return fRenderTarget.get(); }
 
     /**
-     * Convert from texels to normalized texture coords for POT textures only. Please don't add
-     * new callsites for these functions. They are slated for removal.
-     */
-    SkFixed normalizeFixedX(SkFixed x) const {
-        SkASSERT(SkIsPow2(fDesc.fWidth));
-        return x >> fShiftFixedX;
-    }
-    SkFixed normalizeFixedY(SkFixed y) const {
-        SkASSERT(SkIsPow2(fDesc.fHeight));
-        return y >> fShiftFixedY;
-    }
-
-    /**
      *  Return the native ID or handle to the texture, depending on the
      *  platform. e.g. on OpenGL, return the texture ID.
      */
     virtual GrBackendObject getTextureHandle() const = 0;
 
     /**
      * This function indicates that the texture parameters (wrap mode, filtering, ...) have been
      * changed externally to Skia.
      */
     virtual void textureParamsModified() = 0;
-    SK_ATTR_DEPRECATED("Renamed to textureParamsModified.")
-    void invalidateCachedState() { this->textureParamsModified(); }
 
     /**
-     * Informational texture flags. This will be moved to the private GrTextureImpl class soon.
+     * Informational texture flags. This will be removed soon.
      */
     enum FlagBits {
         kFirstBit = (kLastPublic_GrTextureFlagBit << 1),
 
         /**
          * This texture should be returned to the texture cache when
          * it is no longer reffed
          */
         kReturnToCache_FlagBit        = kFirstBit,
     };
 
     void resetFlag(GrTextureFlags flags) {
         fDesc.fFlags = fDesc.fFlags & ~flags;
     }
 
 #ifdef SK_DEBUG
     void validate() const {
         this->INHERITED::validate();
         this->validateDesc();
     }
 #endif
 
-    GrTextureImpl* impl() { return reinterpret_cast<GrTextureImpl*>(this); }
-    const GrTextureImpl* impl() const { return reinterpret_cast<const GrTextureImpl*>(this); }
+    /** Access methods that are only to be used within Skia code. */
+    inline GrTexturePriv texturePriv();
+    inline const GrTexturePriv texturePriv() const;
 
 protected:
     // A texture refs its rt representation but not vice-versa. It is up to
     // the subclass constructor to initialize this pointer.
     SkAutoTUnref<GrRenderTarget> fRenderTarget;
 
-    GrTexture(GrGpu* gpu, bool isWrapped, const GrTextureDesc& desc)
-    : INHERITED(gpu, isWrapped, desc)
-    , fRenderTarget(NULL) {
-        // only make sense if alloc size is pow2
-        fShiftFixedX = 31 - SkCLZ(fDesc.fWidth);
-        fShiftFixedY = 31 - SkCLZ(fDesc.fHeight);
-    }
+    GrTexture(GrGpu* gpu, bool isWrapped, const GrTextureDesc& desc);
 
     virtual ~GrTexture();
 
     // GrResource overrides
     virtual void onRelease() SK_OVERRIDE;
     virtual void onAbandon() SK_OVERRIDE;
 
     void validateDesc() const;
 
 private:
     void abandonReleaseCommon();
     virtual void internal_dispose() const SK_OVERRIDE;
-
-    // these two shift a fixed-point value into normalized coordinates
-    // for this texture if the texture is power of two sized.
-    int                 fShiftFixedX;
-    int                 fShiftFixedY;
-
-    typedef GrSurface INHERITED;
-};
-
-class GrTextureImpl : public GrTexture {
-public:
-    SK_DECLARE_INST_COUNT(GrTextureImpl)
-
-    void setFlag(GrTextureFlags flags) {
-        fDesc.fFlags = fDesc.fFlags | flags;
-    }
-    void resetFlag(GrTextureFlags flags) {
-        fDesc.fFlags = fDesc.fFlags & ~flags;
-    }
-    bool isSetFlag(GrTextureFlags flags) const {
-        return 0 != (fDesc.fFlags & flags);
-    }
-
     void dirtyMipMaps(bool mipMapsDirty);
 
-    bool mipMapsAreDirty() const {
-        return kValid_MipMapsStatus != fMipMapsStatus;
-    }
-
-    bool hasMipMaps() const {
-        return kNotAllocated_MipMapsStatus != fMipMapsStatus;
-    }
-
-    static GrResourceKey ComputeKey(const GrGpu* gpu,
-                                    const GrTextureParams* params,
-                                    const GrTextureDesc& desc,
-                                    const GrCacheID& cacheID);
-    static GrResourceKey ComputeScratchKey(const GrTextureDesc& desc);
-    static bool NeedsResizing(const GrResourceKey& key);
-    static bool NeedsBilerp(const GrResourceKey& key);
-
-protected:
-    GrTextureImpl(GrGpu* gpu, bool isWrapped, const GrTextureDesc& desc);
-
-private:
     enum MipMapsStatus {
         kNotAllocated_MipMapsStatus,
         kAllocated_MipMapsStatus,
         kValid_MipMapsStatus
     };
 
-    MipMapsStatus       fMipMapsStatus;
+    MipMapsStatus   fMipMapsStatus;
+    // These two shift a fixed-point value into normalized coordinates  
+    // for this texture if the texture is power of two sized.
+    int             fShiftFixedX;
+    int             fShiftFixedY;
 
-    typedef GrTexture INHERITED;
+    friend class GrTexturePriv;
+
+    typedef GrSurface INHERITED;
 };
 
 /**
  * Represents a texture that is intended to be accessed in device coords with an offset.
  */
 class GrDeviceCoordTexture {
 public:
     GrDeviceCoordTexture() { fOffset.set(0, 0); }
 
     GrDeviceCoordTexture(const GrDeviceCoordTexture& other) {
@@ skipping 22 matching lines @@
         fTexture.reset(SkSafeRef(texture));
         return texture;
     }
 
 private:
     SkAutoTUnref<GrTexture> fTexture;
     SkIPoint                fOffset;
 };
 
 #endif