58 lines
1.5 KiB
Text
58 lines
1.5 KiB
Text
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/**
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* PANDA 3D SOFTWARE
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* Copyright (c) Carnegie Mellon University. All rights reserved.
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*
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* All use of this software is subject to the terms of the revised BSD
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* license. You should have received a copy of this license along
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* with this source code in a file named "LICENSE."
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*
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* @file vertexDataBlock.I
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* @author drose
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* @date 2007-06-04
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*/
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/**
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*
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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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* Returns the page from which this buffer was 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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* Returns a pointer to the start of the allocated memory for this buffer, or
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* NULL if the data is not currently resident. If the data is not currently
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* resident, this will implicitly request it to become resident soon.
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*
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* If force is true, this method will never return NULL, but may block until
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* 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() != nullptr, nullptr);
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unsigned char *page_data = get_page()->get_page_data(force);
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if (page_data == nullptr) {
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return nullptr;
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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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* Returns a pointer to the next allocated block in the chain, or NULL if
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* 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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