64 lines
2.2 KiB
C++
Executable File
64 lines
2.2 KiB
C++
Executable File
///////////////////////////////////////////////////////////////////////////////
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//
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// Name: VertexBufferManager.cpp
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// Author: Rich Cross
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// Contact: rich@wildfiregames.com
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//
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///////////////////////////////////////////////////////////////////////////////
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#include "precompiled.h"
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#include <assert.h>
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#include "ogl.h"
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#include "VertexBufferManager.h"
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CVertexBufferManager g_VBMan;
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///////////////////////////////////////////////////////////////////////////////
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// Allocate: try to allocate a buffer of given number of vertices (each of
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// given size), with the given type, and using the given texture - return null
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// if no free chunks available
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CVertexBuffer::VBChunk* CVertexBufferManager::Allocate(size_t vertexSize,size_t numVertices,bool dynamic)
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{
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CVertexBuffer::VBChunk* result=0;
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// TODO, RC - run some sanity checks on allocation request
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// iterate through all existing buffers testing for one that'll
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// satisfy the allocation
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typedef std::list<CVertexBuffer*>::iterator Iter;
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for (Iter iter=m_Buffers.begin();iter!=m_Buffers.end();++iter) {
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CVertexBuffer* buffer=*iter;
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result=buffer->Allocate(vertexSize,numVertices,dynamic);
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if (result) return result;
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}
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// got this far; need to allocate a new buffer
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CVertexBuffer* buffer=new CVertexBuffer(vertexSize,dynamic);
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m_Buffers.push_front(buffer);
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result=buffer->Allocate(vertexSize,numVertices,dynamic);
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// TODO, RC - assert not really suitable? probably need to handle "failed to create
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// VBO case" better
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assert(result);
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return result;
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}
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///////////////////////////////////////////////////////////////////////////////
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// Release: return given chunk to it's owner
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void CVertexBufferManager::Release(CVertexBuffer::VBChunk* chunk)
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{
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assert(chunk);
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chunk->m_Owner->Release(chunk);
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}
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///////////////////////////////////////////////////////////////////////////////
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// ClearBatchIndices: empty out the batch lists of all vertex buffers
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void CVertexBufferManager::ClearBatchIndices()
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{
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typedef std::list<CVertexBuffer*>::iterator Iter;
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for (Iter iter=m_Buffers.begin();iter!=m_Buffers.end();++iter) {
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CVertexBuffer* buffer=*iter;
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buffer->ClearBatchIndices();
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}
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} |