75 lines
2.8 KiB
Plaintext
75 lines
2.8 KiB
Plaintext
// Filename: vertexDataBlock.I
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// Created by: drose (04Jun07)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) 2001 - 2004, Disney Enterprises, Inc. All rights reserved
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//
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// All use of this software is subject to the terms of the Panda 3d
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// Software license. You should have received a copy of this license
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// along with this source code; you will also find a current copy of
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// the license at http://etc.cmu.edu/panda3d/docs/license/ .
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//
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// To contact the maintainers of this program write to
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// panda3d-general@lists.sourceforge.net .
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//
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////////////////////////////////////////////////////////////////////
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////////////////////////////////////////////////////////////////////
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// Function: VertexDataBlock::Constructor
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// Access: Published
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// Description:
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////////////////////////////////////////////////////////////////////
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INLINE VertexDataBlock::
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VertexDataBlock(VertexDataPage *page, size_t start, size_t size) :
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SimpleAllocatorBlock(page, start, size)
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{
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}
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////////////////////////////////////////////////////////////////////
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// Function: VertexDataBlock::get_page
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// Access: Published
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// Description: Returns the page from which this buffer was
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// allocated.
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////////////////////////////////////////////////////////////////////
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INLINE VertexDataPage *VertexDataBlock::
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get_page() const {
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return (VertexDataPage *)get_allocator();
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}
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////////////////////////////////////////////////////////////////////
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// Function: VertexDataBlock::get_pointer
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// Access: Public
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// Description: Returns a pointer to the start of the allocated
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// memory for this buffer, or NULL if the data is not
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// currently resident. If the data is not currently
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// resident, this will implicitly request it to become
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// resident soon.
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//
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// If force is true, this method will never return NULL,
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// but may block until the data is available.
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////////////////////////////////////////////////////////////////////
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INLINE unsigned char *VertexDataBlock::
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get_pointer(bool force) const {
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nassertr(get_page() != (VertexDataPage *)NULL, NULL);
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unsigned char *page_data = get_page()->get_page_data(force);
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if (page_data == (unsigned char *)NULL) {
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return NULL;
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} else {
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return page_data + get_start();
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}
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}
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////////////////////////////////////////////////////////////////////
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// Function: VertexDataBlock::get_next_block
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// Access: Published
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// Description: Returns a pointer to the next allocated block in the
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// chain, or NULL if there are no more allocated blocks.
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////////////////////////////////////////////////////////////////////
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INLINE VertexDataBlock *VertexDataBlock::
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get_next_block() const {
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return (VertexDataBlock *)SimpleAllocatorBlock::get_next_block();
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}
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