Engine directory for ticket #1

Engine/source/gfx/gl/gfxGLTextureObject.h

@@ -0,0 +1,99 @@
+//-----------------------------------------------------------------------------
+// Copyright (c) 2012 GarageGames, LLC
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to
+// deal in the Software without restriction, including without limitation the
+// rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+// sell copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+// FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+// IN THE SOFTWARE.
+//-----------------------------------------------------------------------------
+
+#ifndef _GFXGLTEXTUREOBJECT_H
+#define _GFXGLTEXTUREOBJECT_H
+
+#include "gfx/gfxTextureObject.h"
+#include "gfx/gl/ggl/ggl.h"
+
+class GFXGLDevice;
+
+class GFXGLTextureObject : public GFXTextureObject 
+{
+public:
+   GFXGLTextureObject(GFXDevice * aDevice, GFXTextureProfile *profile); 
+   virtual ~GFXGLTextureObject();
+   
+   void release();
+   
+   inline GLuint getHandle() const { return mHandle; }
+   inline GLenum getBinding() const { return mBinding; }
+   inline GLuint getBuffer() const { return mBuffer; }
+   
+   inline bool isZombie() const { return mIsZombie; }
+
+   /// Binds the texture to the given texture unit
+   /// and applies the current sampler state because GL tracks
+   /// filtering and wrapper per object, while GFX tracks per sampler.
+   void bind(U32 textureUnit) const;
+   
+   /// @return An array containing the texture data
+   /// @note You are responsible for deleting the returned data! (Use delete[])
+   U8* getTextureData();
+
+   virtual F32 getMaxUCoord() const;
+   virtual F32 getMaxVCoord() const;
+   
+   void reloadFromCache(); ///< Reloads texture from zombie cache, used by GFXGLTextureManager to resurrect the texture.
+   
+#ifdef TORQUE_DEBUG
+   virtual void pureVirtualCrash() {}
+#endif
+
+   /// Get/set data from texture (for dynamic textures and render targets)
+   /// @attention DO NOT READ FROM THE RETURNED RECT! It is not guaranteed to work and may incur significant performance penalties.
+   virtual GFXLockedRect* lock(U32 mipLevel = 0, RectI *inRect = NULL);
+   virtual void unlock(U32 mipLevel = 0 );
+
+   virtual bool copyToBmp(GBitmap *); ///< Not implemented
+   
+   bool mIsNPoT2;
+
+   // GFXResource interface
+   virtual void zombify();
+   virtual void resurrect();
+   virtual const String describeSelf() const;
+   
+private:
+   friend class GFXGLTextureManager;
+   typedef GFXTextureObject Parent;
+   /// Internal GL object
+   GLuint mHandle;
+   GLuint mBuffer;
+
+   GLenum mBinding;
+   
+   U32 mBytesPerTexel;
+   GFXLockedRect mLockedRect;
+   RectI mLockedRectRect;
+
+   /// Pointer to owner device
+   GFXGLDevice* mGLDevice;
+   
+   bool mIsZombie;
+   U8* mZombieCache;
+   
+   void copyIntoCache();
+};
+
+#endif