Factor GrTexture into public GrTexture and private GrTextureImpl.

src/gpu/GrTexture.cpp

 
 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #include "GrTexture.h"
 
 #include "GrContext.h"
 #include "GrDrawTargetCaps.h"
 #include "GrGpu.h"
 #include "GrRenderTarget.h"
 #include "GrResourceCache.h"
 
 GrTexture::~GrTexture() {
     if (NULL != fRenderTarget.get()) {
         fRenderTarget.get()->owningTextureDestroyed();
     }
 }
 
 /**
  * This method allows us to interrupt the normal deletion process and place
  * textures back in the texture cache when their ref count goes to zero.
  */
 void GrTexture::internal_dispose() const {
-
-    if (this->isSetFlag((GrTextureFlags) kReturnToCache_FlagBit) &&
+    if (this->impl()->isSetFlag((GrTextureFlags) GrTextureImpl::kReturnToCache_FlagBit) &&
         NULL != this->INHERITED::getContext()) {
         GrTexture* nonConstThis = const_cast<GrTexture *>(this);
         this->fRefCnt = 1;      // restore ref count to initial setting
 
-        nonConstThis->resetFlag((GrTextureFlags) kReturnToCache_FlagBit);
+        nonConstThis->impl()->resetFlag((GrTextureFlags) GrTextureImpl::kReturnToCache_FlagBit);
         nonConstThis->INHERITED::getContext()->addExistingTextureToCache(nonConstThis);
 
         // Note: "this" texture might be freed inside addExistingTextureToCache
         // if it is purged.
         return;
     }
 
     SkASSERT(0 == this->getDeferredRefCount());
     this->INHERITED::internal_dispose();
 }
 
-void GrTexture::dirtyMipMaps(bool mipMapsDirty) {
+void GrTextureImpl::dirtyMipMaps(bool mipMapsDirty) {
     if (mipMapsDirty) {
         if (kValid_MipMapsStatus == fMipMapsStatus) {
             fMipMapsStatus = kAllocated_MipMapsStatus;
         }
     } else {
         const bool sizeChanged = kNotAllocated_MipMapsStatus == fMipMapsStatus;
         fMipMapsStatus = kValid_MipMapsStatus;
         if (sizeChanged) {
             // This must not be called until after changing fMipMapsStatus.
             this->didChangeGpuMemorySize();
         }
     }
 }
 
 size_t GrTexture::gpuMemorySize() const {
     size_t textureSize =  (size_t) fDesc.fWidth *
                                    fDesc.fHeight *
                                    GrBytesPerPixel(fDesc.fConfig);
-    if (kNotAllocated_MipMapsStatus != fMipMapsStatus) {
+    if (this->impl()->hasMipMaps()) {
         // We don't have to worry about the mipmaps being a different size than
         // we'd expect because we never change fDesc.fWidth/fHeight.
         textureSize *= 2;
     }
     return textureSize;
 }
 
 bool GrTexture::readPixels(int left, int top, int width, int height,
                            GrPixelConfig config, void* buffer,
                            size_t rowBytes, uint32_t pixelOpsFlags) {
@@ skipping 16 matching lines @@
     if (NULL == context) {
         return;
     }
     context->writeTexturePixels(this,
                                 left, top, width, height,
                                 config, buffer, rowBytes,
                                 pixelOpsFlags);
 }
 
 void GrTexture::onRelease() {
-    SkASSERT(!this->isSetFlag((GrTextureFlags) kReturnToCache_FlagBit));
+    SkASSERT(!this->impl()->isSetFlag((GrTextureFlags) GrTextureImpl::kReturnToCache_FlagBit));
     INHERITED::onRelease();
 }
 
 void GrTexture::onAbandon() {
     if (NULL != fRenderTarget.get()) {
         fRenderTarget->abandon();
     }
     INHERITED::onAbandon();
 }
 
 void GrTexture::validateDesc() const {
     if (NULL != this->asRenderTarget()) {
         // This texture has a render target
         SkASSERT(0 != (fDesc.fFlags & kRenderTarget_GrTextureFlagBit));
 
         if (NULL != this->asRenderTarget()->getStencilBuffer()) {
             SkASSERT(0 != (fDesc.fFlags & kNoStencil_GrTextureFlagBit));
         } else {
             SkASSERT(0 == (fDesc.fFlags & kNoStencil_GrTextureFlagBit));
         }
 
         SkASSERT(fDesc.fSampleCnt == this->asRenderTarget()->numSamples());
     } else {
         SkASSERT(0 == (fDesc.fFlags & kRenderTarget_GrTextureFlagBit));
         SkASSERT(0 == (fDesc.fFlags & kNoStencil_GrTextureFlagBit));
         SkASSERT(0 == fDesc.fSampleCnt);
     }
 }
 
+//////////////////////////////////////////////////////////////////////////////
+
 // These flags need to fit in a GrResourceKey::ResourceFlags so they can be folded into the texture
 // key
 enum TextureFlags {
     /**
      * The kStretchToPOT bit is set when the texture is NPOT and is being repeated but the
      * hardware doesn't support that feature.
      */
     kStretchToPOT_TextureFlag = 0x1,
     /**
      * The kBilerp bit can only be set when the kStretchToPOT flag is set and indicates whether the
@@ skipping 36 matching lines @@
     // to render upside down.
     bool renderTarget = 0 != (desc.fFlags & kRenderTarget_GrTextureFlagBit);
     if (kDefault_GrSurfaceOrigin == desc.fOrigin) {
         return renderTarget ? kBottomLeft_GrSurfaceOrigin : kTopLeft_GrSurfaceOrigin;
     } else {
         return desc.fOrigin;
     }
 }
 }
 
-GrResourceKey GrTexture::ComputeKey(const GrGpu* gpu,
+//////////////////////////////////////////////////////////////////////////////
+
+GrResourceKey GrTextureImpl::ComputeKey(const GrGpu* gpu,
                                     const GrTextureParams* params,
                                     const GrTextureDesc& desc,
                                     const GrCacheID& cacheID) {
     GrResourceKey::ResourceFlags flags = get_texture_flags(gpu, params, desc);
     return GrResourceKey(cacheID, texture_resource_type(), flags);
 }
 
-GrResourceKey GrTexture::ComputeScratchKey(const GrTextureDesc& desc) {
+GrResourceKey GrTextureImpl::ComputeScratchKey(const GrTextureDesc& desc) {
     GrCacheID::Key idKey;
     // Instead of a client-provided key of the texture contents we create a key from the
     // descriptor.
     GR_STATIC_ASSERT(sizeof(idKey) >= 16);
     SkASSERT(desc.fHeight < (1 << 16));
     SkASSERT(desc.fWidth < (1 << 16));
     idKey.fData32[0] = (desc.fWidth) | (desc.fHeight << 16);
     idKey.fData32[1] = desc.fConfig | desc.fSampleCnt << 16;
     idKey.fData32[2] = desc.fFlags;
     idKey.fData32[3] = resolve_origin(desc);    // Only needs 2 bits actually
     static const int kPadSize = sizeof(idKey) - 16;
     GR_STATIC_ASSERT(kPadSize >= 0);
     memset(idKey.fData8 + 16, 0, kPadSize);
 
     GrCacheID cacheID(GrResourceKey::ScratchDomain(), idKey);
     return GrResourceKey(cacheID, texture_resource_type(), 0);
 }
 
-bool GrTexture::NeedsResizing(const GrResourceKey& key) {
+bool GrTextureImpl::NeedsResizing(const GrResourceKey& key) {
     return SkToBool(key.getResourceFlags() & kStretchToPOT_TextureFlag);
 }
 
-bool GrTexture::NeedsBilerp(const GrResourceKey& key) {
+bool GrTextureImpl::NeedsBilerp(const GrResourceKey& key) {
     return SkToBool(key.getResourceFlags() & kBilerp_TextureFlag);
 }