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/*
   Copyright (c) 2014 DIVIDE-Studio
   Copyright (c) 2009 Ionut Cava

   This file is part of DIVIDE Framework.

   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.

 */

/*Code references:
    http://www.cplusplus.com/forum/lounge/27570/
*/
#ifndef UTIL_CRC_H_
#define UTIL_CRC_H_

#include "Platform/DataTypes/Headers/PlatformDefines.h"

namespace Divide {
namespace Util {
    class CRC32    {
    public:
        //=========================================
        //  ctors
        inline CRC32()                                   { Reset();                  }
        inline CRC32(const void* buf, size_t siz)        { Reset(); Hash(buf,siz);   }

        //=========================================
        /// implicit cast, so that you can do something like foo = CRC(dat,siz);
        inline operator U32 () const                    { return Get();             }

        //=========================================
        /// getting the crc
        inline U32          Get() const                 { return ~mCrc;             }

        //=========================================
        // HashBase stuff
        virtual void        Reset()                     { mCrc = (U32)~0;                }
        virtual void        Hash(const void* buf,size_t siz);

    private:
        U32         mCrc;
        static U32  mTable[0x100];

    private:
        //=========================================
        // internal support
        static U32          Reflect(U32 v,I32 bits);
    };
}; //namespace Util
}; //namespace Divide

#endif

Commits for Divide-Framework/trunk/Source Code/Utility/Headers/CRC.h

Diff revisions: vs.
Revision Author Commited Message
337 Diff Diff IonutCava picture IonutCava Wed 17 Dec, 2014 17:25:16 +0000

[Ionut]
- Replaced all tabs with 4 spaces (some spacing may be off now. no way to check all the files.)
- Moved implementation details for ParamHandler, BoundingBox, BoundingSphere and ProfileTimer to proper .inl and .cpp files. (more to follow)
- Update all forward declared enums with the required storage type (as requested by the C++11 standard)

334 Diff Diff IonutCava picture IonutCava Wed 10 Dec, 2014 17:21:22 +0000

[Ionut]
- Reorganized the Hardware project and renamed to "Platform"
- Reorganized the Server project

318 Diff Diff IonutCava picture IonutCava Sat 30 Aug, 2014 17:35:53 +0000

[Ionut]
- Wrapped the entire code in a “Divide” namespace
- VertexBuffers now call “shrink_to_fit” on all internal data storage
- Improved some vector performance by preferring “emplace_back” instead of “push_back” + proepr usage of reserve / resize
- Wrapped OIS specific types and classes in Divide::Input namespace
- Added the messageBox.layout file (forgot it in the previous few commits)

260 Diff Diff k1ngp1n picture k1ngp1n Sat 03 May, 2014 19:33:41 +0000

[Ionut] [[BR]]
- More work on CSM. Reverted back to VSM to allow easier blurring and filtering [[BR]]
- Rewrote FrameBuffer classes to fix MSAA and memory leaks that occurred on resize (double creation of textures) [[BR]]
— Removed FBType. FrameBuffer types depend only on attachment types and if it’s MSAA enabled or not [[BR]]
- Rewrote RenderState classes to be API agnostic [[BR]]
- Bug fixes in math classes [[BR]]
- Changed “resolution change” logic [[BR]]
- Simplified some options in config.xml [[BR]]
- Improved per-light shadow options [[BR]]

221 Diff Diff k1ngp1n picture k1ngp1n Wed 08 Jan, 2014 18:50:02 +0000

[Ionut] [[BR]]
- Merged branch “Shadows And Animations” back into trunk [[BR]]
- Added DoxygenGUI project file [[BR]]

  • Buggy *
170 Diff Diff k1ngp1n picture k1ngp1n Sun 03 Nov, 2013 17:24:57 +0000

-Moved hardware related code to a separate project [[BR]]
-More work on post-processing: [[BR]]
— HDR rendering is working, but final tonemapping needs more work [[BR]]
-Important changes in BloomPreRenderOperator.cpp, PostFX.cpp and glFrameBufferObject.cpp [[BR]]
-Trailing and leading whitespace cleanups [[BR]]

160 Diff Diff k1ngp1n picture k1ngp1n Wed 10 Jul, 2013 17:07:04 +0000

[Ionut] [[BR]]
- Changed licensing from LGPL to the MIT license [[BR]]
— Code can now be used in non-commercial or commercial closed or open source projects [[BR]]

152 Diff Diff k1ngp1n picture k1ngp1n Thu 20 Jun, 2013 14:23:31 +0000

[Ionut] [[BR]]
- New rendering pipeline (experimental and unstable): [[BR]]
— OpenGL 3.x clean context (glLight commands are still used for now, but UBO support is there, but not used yet) [[BR]]
— Custom matrix stacks and UBO based shader data (UBOs cause some link errors on some nVidia cards)[[BR]]
— Multi-threaded texture loading and shader compilation (mt shader compilation disabled for now. needs more tests) [[BR]]
— VAO rendering is self contained (no more enable/disable calls before a draw request) [[BR]]
— Render instance class used for rendering information [[BR]]
[[BR]]
- New unique ID generation base class: GUIDWrapper. Each class that derives from this, gets an application wide unique id on construction [[BR]]
- Added base code for an in-game editor using CEGUI [[BR]]
- Replaced some mutex locks with lockless data structures or atomic data [[BR]]
- CEGUI 0.8.2, FTGL-GL3 and GLIM 0.4 modified to support GLEW_MX if defined [[BR]]
- Dropped VS2008 support [[BR]]
- Networking library, server framework and ReCast files are now projects inside the Divide Framework solution [[BR]]
- New console command “setFov” that modifies the horizontal FoV value in realtime [[BR]]
- New console command “recompileShader” that reparses shader files, recompiles shaders and relinks shader programs who’s names match or contain the argument string [[BR]]
- New debug utility: axis angle drawn in corner of the screen if needed [[BR]]
- More ‘const’-s pasted around the code, more loop performance tweaks (allocations before a loop, tighter loops, etc), more utility member functions added to various classes [[BR]]

151 Diff Diff k1ngp1n picture k1ngp1n Tue 07 May, 2013 00:00:52 +0000

[Ionut] [[BR]]
- Better ReCast integration [[BR]]
— Any entity can be used as an obstacle in the NavMesh if that’s specified in each scene’s assets.xml file for said entity [[BR]]
— New console command, “createNavMesh”, that passes geometry data to ReCast [[BR]]
-— NavMesh generation is not yet complete [[BR]]
- Better PhysX integration [[BR]]
— Each scene passes data to and gets data from the Physics API better and safer[[BR]]
- Multi-threaded support extended: [[BR]]
— Event class replaced with Task [[BR]]
— Kernel uses a threadpool for scene tasks [[BR]]
— Each task can be added to a different threadpool if needed [[BR]]
— Most critical sections use the new boost::atomic wrapper for thread safety [[BR]]
- Rendering system updated [[BR]]
— VBO’s keep track of the geometry type internally [[BR]]
— Rendering by specific element list is internal to the VBO [[BR]]
— VBO’s can draw a “lite” version that doesn’t send Tangent, BiTangent and TexCoord data for depth rendering (disabled) [[BR]]
- Reflectors now offer a preview of the generated reflective texture if needed [[BR]]
- Buttons are now added and rendered by CEGUI [[BR]]
[[BR]]
Deprecation: [[BR]]
- Removed fixed pipeline material system [[BR]]
- Removed BoundingBox late update system [[BR]]
- Shadow references in the material system are now depth references [[BR]]
[[BR]]
Bug fixes: [[BR]]
- Problematic FBO double bind check removed [[BR]]
- Faster terrain rendering via chunk size selection through each scene’s terrain.xml[[BR]]
- Rendering is paused when the window is minimized [[BR]]
- CEGUI and impostors now render properly in deferred rendering mode [[BR]]
- Fixed various level 4 (VS2008) warnings [[BR]]
- Better state management and cleaning [[BR]]
- Better SceneGraph node management and trasformation/AABB update calls [[BR]]
- AITenisScene has proper collisions now [[BR]]

141 k1ngp1n picture k1ngp1n Wed 30 Jan, 2013 19:35:31 +0000

[Ionut] [[BR]]
-Updated to boost 1.52 and CEGUI 0.7.9 [[BR]]
-Updated to PhysX 3.2 [[BR]]
-Updated copyright notices [[BR]]