Switching texture backing to opaque storage type

libraries/gpu/src/gpu/Texture.cpp

@@ -122,36 +122,12 @@ uint8 Texture::NUM_FACES_PER_TYPE[NUM_TYPES] = { 1, 1, 1, 6 };
 
 Texture::Pixels::Pixels(const Element& format, Size size, const Byte* bytes) :
     _format(format),
-    _sysmem(size, bytes),
-    _isGPULoaded(false) {
-    Texture::updateTextureCPUMemoryUsage(0, _sysmem.getSize());
+    _storage(new storage::MemoryStorage(size, bytes)) {
+    Texture::updateTextureCPUMemoryUsage(0, _storage->size());
 }
 
 Texture::Pixels::~Pixels() {
-    Texture::updateTextureCPUMemoryUsage(_sysmem.getSize(), 0);
-}
-
-Texture::Size Texture::Pixels::resize(Size pSize) {
-    auto prevSize = _sysmem.getSize();
-    auto newSize = _sysmem.resize(pSize);
-    Texture::updateTextureCPUMemoryUsage(prevSize, newSize);
-    return newSize;
-}
-
-Texture::Size Texture::Pixels::setData(const Element& format, Size size, const Byte* bytes ) {
-    _format = format;
-    auto prevSize = _sysmem.getSize();
-    auto newSize = _sysmem.setData(size, bytes);
-    Texture::updateTextureCPUMemoryUsage(prevSize, newSize);
-    _isGPULoaded = false;
-    return newSize;
-}
-
-void Texture::Pixels::notifyGPULoaded() {
-    _isGPULoaded = true;
-    auto prevSize = _sysmem.getSize();
-    auto newSize = _sysmem.resize(0);
-    Texture::updateTextureCPUMemoryUsage(prevSize, newSize);
+    Texture::updateTextureCPUMemoryUsage(_storage->size(), 0);
 }
 
 void Texture::Storage::assignTexture(Texture* texture) {
@@ -183,14 +159,6 @@ const Texture::PixelsPointer Texture::Storage::getMipFace(uint16 level, uint8 fa
     return PixelsPointer();
 }
 
-void Texture::Storage::notifyMipFaceGPULoaded(uint16 level, uint8 face) const {
-    PixelsPointer mipFace = getMipFace(level, face);
-    // Free the mips
-    if (mipFace) {
-        mipFace->notifyGPULoaded();
-    }
-}
-
 bool Texture::Storage::isMipAvailable(uint16 level, uint8 face) const {
     PixelsPointer mipFace = getMipFace(level, face);
     return (mipFace && mipFace->getSize());
@@ -229,7 +197,8 @@ bool Texture::Storage::assignMipData(uint16 level, const Element& format, Size s
     auto faceBytes = bytes;
     Size allocated = 0;
     for (auto& face : mip) {
-        allocated += face->setData(format, sizePerFace, faceBytes);
+        face.reset(new Pixels(format, size, bytes));
+        allocated += size;
         faceBytes += sizePerFace;
     }
 
@@ -242,11 +211,11 @@ bool Texture::Storage::assignMipData(uint16 level, const Element& format, Size s
 bool Texture::Storage::assignMipFaceData(uint16 level, const Element& format, Size size, const Byte* bytes, uint8 face) {
 
     allocateMip(level);
-    auto mip = _mips[level];
+    auto& mip = _mips[level];
     Size allocated = 0;
     if (face < mip.size()) { 
-        auto mipFace = mip[face];
-        allocated += mipFace->setData(format, size, bytes);
+        mip[face].reset(new Pixels(format, size, bytes));
+        allocated += size;
         bumpStamp();
     }
 

libraries/gpu/src/gpu/Texture.h

@@ -17,6 +17,8 @@
 #include <QMetaType>
 #include <QUrl>
 
+#include <shared/Storage.h>
+
 #include "Forward.h"
 #include "Resource.h"
 
@@ -224,26 +226,26 @@ public:
         bool operator!=(const Usage& usage) { return (_flags != usage._flags); }
     };
 
+
     class Pixels {
     public:
+        using StoragePointer = storage::StoragePointer;
+
         Pixels() {}
         Pixels(const Pixels& pixels) = default;
         Pixels(const Element& format, Size size, const Byte* bytes);
+        Pixels(const Element& format, StoragePointer& storage) : _format(format), _storage(storage.release()) {}
         ~Pixels();
 
-        const Byte* readData() const { return _sysmem.readData(); }
-        Size getSize() const { return _sysmem.getSize(); }
-        Size resize(Size pSize);
-        Size setData(const Element& format, Size size, const Byte* bytes );
+        const Byte* readData() const { return _storage->data(); }
+        Size getSize() const { return _storage->size(); }
         
         const Element& getFormat() const { return _format; }
-        
-        void notifyGPULoaded();
-        
+
+
     protected:
         Element _format;
-        Sysmem _sysmem;
-        bool _isGPULoaded;
+        StoragePointer _storage;
         
         friend class Texture;
     };
@@ -296,10 +298,6 @@ public:
         const Texture* getTexture() const { return _texture; }
  
         friend class Texture;
-        
-        // THis should be only called by the Texture from the Backend to notify the storage that the specified mip face pixels
-        //  have been uploaded to the GPU memory. IT is possible for the storage to free the system memory then
-        virtual void notifyMipFaceGPULoaded(uint16 level, uint8 face) const;
     };
 
  
@@ -481,9 +479,6 @@ public:
     const Sampler& getSampler() const { return _sampler; }
     Stamp getSamplerStamp() const { return _samplerStamp; }
 
-    // Only callable by the Backend
-    void notifyMipFaceGPULoaded(uint16 level, uint8 face = 0) const { return _storage->notifyMipFaceGPULoaded(level, face); }
-
     void setExternalTexture(uint32 externalId, void* externalFence);
     void setExternalRecycler(const ExternalRecycler& recycler);
     ExternalRecycler getExternalRecycler() const;

libraries/gpu/src/gpu/Texture_ktx.cpp

@@ -72,7 +72,7 @@ ktx::KTXUniquePointer Texture::serialize(const Texture& texture) {
     for (uint32_t level = 0; level < header.numberOfMipmapLevels; level++) {
         auto mip = texture.accessStoredMipFace(level);
         if (mip) {
-            images.emplace_back(ktx::Image(mip->getSize(), 0, mip->readData()));
+            images.emplace_back(ktx::Image((uint32_t)mip->getSize(), 0, mip->readData()));
         }
     }