71 lines
2.6 KiB
Plaintext
71 lines
2.6 KiB
Plaintext
// Filename: vertexDataBlock.I
|
|
// Created by: drose (04Jun07)
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
//
|
|
// PANDA 3D SOFTWARE
|
|
// Copyright (c) Carnegie Mellon University. All rights reserved.
|
|
//
|
|
// All use of this software is subject to the terms of the revised BSD
|
|
// license. You should have received a copy of this license along
|
|
// with this source code in a file named "LICENSE."
|
|
//
|
|
////////////////////////////////////////////////////////////////////
|
|
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: VertexDataBlock::Constructor
|
|
// Access: Published
|
|
// Description:
|
|
////////////////////////////////////////////////////////////////////
|
|
INLINE VertexDataBlock::
|
|
VertexDataBlock(VertexDataPage *page, size_t start, size_t size) :
|
|
SimpleAllocatorBlock(page, start, size)
|
|
{
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: VertexDataBlock::get_page
|
|
// Access: Published
|
|
// Description: Returns the page from which this buffer was
|
|
// allocated.
|
|
////////////////////////////////////////////////////////////////////
|
|
INLINE VertexDataPage *VertexDataBlock::
|
|
get_page() const {
|
|
return (VertexDataPage *)get_allocator();
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: VertexDataBlock::get_pointer
|
|
// Access: Public
|
|
// Description: Returns a pointer to the start of the allocated
|
|
// memory for this buffer, or NULL if the data is not
|
|
// currently resident. If the data is not currently
|
|
// resident, this will implicitly request it to become
|
|
// resident soon.
|
|
//
|
|
// If force is true, this method will never return NULL,
|
|
// but may block until the data is available.
|
|
////////////////////////////////////////////////////////////////////
|
|
INLINE unsigned char *VertexDataBlock::
|
|
get_pointer(bool force) const {
|
|
nassertr(get_page() != (VertexDataPage *)NULL, NULL);
|
|
unsigned char *page_data = get_page()->get_page_data(force);
|
|
if (page_data == (unsigned char *)NULL) {
|
|
return NULL;
|
|
} else {
|
|
return page_data + get_start();
|
|
}
|
|
}
|
|
|
|
////////////////////////////////////////////////////////////////////
|
|
// Function: VertexDataBlock::get_next_block
|
|
// Access: Published
|
|
// Description: Returns a pointer to the next allocated block in the
|
|
// chain, or NULL if there are no more allocated blocks.
|
|
////////////////////////////////////////////////////////////////////
|
|
INLINE VertexDataBlock *VertexDataBlock::
|
|
get_next_block() const {
|
|
return (VertexDataBlock *)SimpleAllocatorBlock::get_next_block();
|
|
}
|