element_array_buffer.h

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00001 /*
00002 **  ClanLib SDK
00003 **  Copyright (c) 1997-2011 The ClanLib Team
00004 **
00005 **  This software is provided 'as-is', without any express or implied
00006 **  warranty.  In no event will the authors be held liable for any damages
00007 **  arising from the use of this software.
00008 **
00009 **  Permission is granted to anyone to use this software for any purpose,
00010 **  including commercial applications, and to alter it and redistribute it
00011 **  freely, subject to the following restrictions:
00012 **
00013 **  1. The origin of this software must not be misrepresented; you must not
00014 **     claim that you wrote the original software. If you use this software
00015 **     in a product, an acknowledgment in the product documentation would be
00016 **     appreciated but is not required.
00017 **  2. Altered source versions must be plainly marked as such, and must not be
00018 **     misrepresented as being the original software.
00019 **  3. This notice may not be removed or altered from any source distribution.
00020 **
00021 **  Note: Some of the libraries ClanLib may link to may have additional
00022 **  requirements or restrictions.
00023 **
00024 **  File Author(s):
00025 **
00026 **    Magnus Norddahl
00027 */
00028 
00031 
00032 #pragma once
00033 
00034 #include "../../Core/System/sharedptr.h"
00035 #include "graphic_context.h"
00036 #include "../api_display.h"
00037 #include "vertex_array_buffer.h"
00038 
00039 class CL_ElementArrayBufferProvider;
00040 class CL_ElementArrayBuffer_Impl;
00041 
00045 class CL_API_DISPLAY CL_ElementArrayBuffer
00046 {
00049 
00050 public:
00052         CL_ElementArrayBuffer();
00053 
00059         CL_ElementArrayBuffer(CL_GraphicContext &gc, int size, CL_BufferUsage usage = cl_usage_static_draw);
00060 
00067         CL_ElementArrayBuffer(CL_GraphicContext &gc, void *data, int size, CL_BufferUsage usage = cl_usage_static_draw);
00068 
00069         virtual ~CL_ElementArrayBuffer();
00070 
00074 
00075 public:
00077         bool is_null() const { return !impl; }
00078 
00080         void throw_if_null() const;
00081 
00083         void *get_data();
00084 
00088         CL_ElementArrayBufferProvider *get_provider() const;
00089 
00093 
00094 public:
00096         bool operator==(const CL_ElementArrayBuffer &other) const;
00097 
00099         void lock(CL_BufferAccess access);
00100 
00102         void unlock();
00103 
00105         void upload_data(int offset, void *data, int size);
00106 
00110 
00111 private:
00112         CL_SharedPtr<CL_ElementArrayBuffer_Impl> impl;
00114 };
00115