void LLVertexBuffer::allocateBuffer(S32 nverts, S32 nindices, bool create)
{
LLMemType mt(LLMemType::MTYPE_VERTEX_DATA);
if (nverts < 0 || nindices < 0 ||
nverts > 65535)
{
llerrs << "Bad vertex buffer allocation: " << nverts << " : " << nindices << llendl;
}
updateNumVerts(nverts);
updateNumIndices(nindices);
if (mMappedData)
{
llerrs << "LLVertexBuffer::allocateBuffer() called redundantly." << llendl;
}
if (create && (nverts || nindices))
{
createGLBuffer();
createGLIndices();
}
sAllocatedBytes += getSize() + getIndicesSize();
}
void LLVertexBuffer::allocateBuffer(S32 nverts, S32 nindices, bool create)
{
LLMemType mt2(LLMemType::MTYPE_VERTEX_ALLOCATE_BUFFER);
updateNumVerts(nverts);
updateNumIndices(nindices);
if (mMappedData)
{
llerrs << "LLVertexBuffer::allocateBuffer() called redundantly." << llendl;
}
if (create && (nverts || nindices))
{
createGLBuffer();
createGLIndices();
}
sAllocatedBytes += getSize() + getIndicesSize();
}
void LLVertexBuffer::resizeBuffer(S32 newnverts, S32 newnindices)
{
LLMemType mt(LLMemType::MTYPE_VERTEX_DATA);
mDynamicSize = TRUE;
if (mUsage == GL_STATIC_DRAW_ARB)
{ //always delete/allocate static buffers on resize
destroyGLBuffer();
destroyGLIndices();
allocateBuffer(newnverts, newnindices, TRUE);
mFinal = FALSE;
}
else if (newnverts > mNumVerts || newnindices > mNumIndices ||
newnverts < mNumVerts/2 || newnindices < mNumIndices/2)
{
sAllocatedBytes -= getSize() + getIndicesSize();
S32 oldsize = getSize();
S32 old_index_size = getIndicesSize();
updateNumVerts(newnverts);
updateNumIndices(newnindices);
S32 newsize = getSize();
S32 new_index_size = getIndicesSize();
sAllocatedBytes += newsize + new_index_size;
if (newsize)
{
if (!mGLBuffer)
{ //no buffer exists, create a new one
createGLBuffer();
}
else
{
//delete old buffer, keep GL buffer for now
U8* old = mMappedData;
mMappedData = new U8[newsize];
if (old)
{
memcpy(mMappedData, old, llmin(newsize, oldsize));
if (newsize > oldsize)
{
memset(mMappedData+oldsize, 0, newsize-oldsize);
}
delete [] old;
}
else
{
memset(mMappedData, 0, newsize);
mEmpty = TRUE;
}
mResized = TRUE;
}
}
else if (mGLBuffer)
{
destroyGLBuffer();
}
if (new_index_size)
{
if (!mGLIndices)
{
createGLIndices();
}
else
{
//delete old buffer, keep GL buffer for now
U8* old = mMappedIndexData;
mMappedIndexData = new U8[new_index_size];
if (old)
{
memcpy(mMappedIndexData, old, llmin(new_index_size, old_index_size));
if (new_index_size > old_index_size)
{
memset(mMappedIndexData+old_index_size, 0, new_index_size - old_index_size);
}
delete [] old;
}
else
{
memset(mMappedIndexData, 0, new_index_size);
mEmpty = TRUE;
}
mResized = TRUE;
}
}
else if (mGLIndices)
{
destroyGLIndices();
}
}
}
void LLVertexBuffer::resizeBuffer(S32 newnverts, S32 newnindices)
{
llassert(newnverts >= 0);
llassert(newnindices >= 0);
mRequestedNumVerts = newnverts;
mRequestedNumIndices = newnindices;
LLMemType mt(LLMemType::MTYPE_VERTEX_DATA);
mDynamicSize = TRUE;
if (mUsage == GL_STATIC_DRAW_ARB)
{ //always delete/allocate static buffers on resize
destroyGLBuffer();
destroyGLIndices();
allocateBuffer(newnverts, newnindices, TRUE);
mFinal = FALSE;
}
else if (newnverts > mNumVerts || newnindices > mNumIndices ||
newnverts < mNumVerts/2 || newnindices < mNumIndices/2)
{
sAllocatedBytes -= getSize() + getIndicesSize();
S32 oldsize = getSize();
S32 old_index_size = getIndicesSize();
updateNumVerts(newnverts);
updateNumIndices(newnindices);
S32 newsize = getSize();
S32 new_index_size = getIndicesSize();
sAllocatedBytes += newsize + new_index_size;
if (newsize)
{
if (!mGLBuffer)
{ //no buffer exists, create a new one
createGLBuffer();
}
else
{
//delete old buffer, keep GL buffer for now
if (!useVBOs())
{
volatile U8* old = mMappedData;
mMappedData = (U8*) ll_aligned_malloc_16(newsize);
if (old)
{
memcpy((void*)mMappedData, (void*)old, llmin(newsize, oldsize));
if ((newsize > oldsize) && !sOmitBlank)
{
memset((void*)(mMappedData+oldsize), 0, newsize-oldsize);
}
ll_aligned_free_16((void*)old);
}
else
{
if (!sOmitBlank) memset((void*)mMappedData, 0, newsize);
mEmpty = TRUE;
}
}
mResized = TRUE;
}
}
else if (mGLBuffer)
{
destroyGLBuffer();
}
if (new_index_size)
{
if (!mGLIndices)
{
createGLIndices();
}
else
{
if (!useVBOs())
{
//delete old buffer, keep GL buffer for now
volatile U8* old = mMappedIndexData;
mMappedIndexData = (U8*) ll_aligned_malloc_16(new_index_size);
if (old)
{
memcpy((void*)mMappedIndexData, (void*)old, llmin(new_index_size, old_index_size));
if ((new_index_size > old_index_size) && !sOmitBlank)
{
memset((void*)(mMappedIndexData+old_index_size), 0, new_index_size - old_index_size);
}
ll_aligned_free_16((void*)old);
}
else
{
if (!sOmitBlank) memset((void*)mMappedIndexData, 0, new_index_size);
mEmpty = TRUE;
}
}
mResized = TRUE;
}
}
else if (mGLIndices)
{
destroyGLIndices();
}
}
if (mResized && useVBOs())
{
freeClientBuffer() ;
setBuffer(0);
}
}