60 lines
2.4 KiB
C++
60 lines
2.4 KiB
C++
/**************************************************************************
|
|
*
|
|
* Copyright 2010 Luca Barbieri
|
|
*
|
|
* Permission is hereby granted, free of charge, to any person obtaining
|
|
* a copy of this software and associated documentation files (the
|
|
* "Software"), to deal in the Software without restriction, including
|
|
* without limitation the rights to use, copy, modify, merge, publish,
|
|
* distribute, sublicense, and/or sell copies of the Software, and to
|
|
* permit persons to whom the Software is furnished to do so, subject to
|
|
* the following conditions:
|
|
*
|
|
* The above copyright notice and this permission notice (including the
|
|
* next paragraph) shall be included in all copies or substantial
|
|
* portions of the Software.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
|
|
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
|
|
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
|
|
* IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
|
|
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
|
|
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
|
|
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
|
|
*
|
|
**************************************************************************/
|
|
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include "dxbc.h"
|
|
|
|
std::pair<void*, size_t> dxbc_assemble(struct dxbc_chunk_header** chunks, unsigned num_chunks)
|
|
{
|
|
size_t data_size = 0;
|
|
for(unsigned i = 0; i < num_chunks; ++i)
|
|
data_size += sizeof(uint32_t) + sizeof(dxbc_chunk_header) + bswap_le32(chunks[i]->size);
|
|
|
|
size_t total_size = sizeof(dxbc_container_header) + data_size;
|
|
dxbc_container_header* header = (dxbc_container_header*)malloc(total_size);
|
|
if(!header)
|
|
return std::make_pair((void*)0, 0);
|
|
|
|
header->fourcc = bswap_le32(FOURCC_DXBC);
|
|
memset(header->unk, 0, sizeof(header->unk));
|
|
header->one = bswap_le32(1);
|
|
header->total_size = bswap_le32(total_size);
|
|
header->chunk_count = num_chunks;
|
|
|
|
uint32_t* chunk_offsets = (uint32_t*)(header + 1);
|
|
uint32_t off = sizeof(struct dxbc_container_header) + num_chunks * sizeof(uint32_t);
|
|
for(unsigned i = 0; i < num_chunks; ++i)
|
|
{
|
|
chunk_offsets[i] = bswap_le32(off);
|
|
unsigned chunk_full_size = sizeof(dxbc_chunk_header) + bswap_le32(chunks[i]->size);
|
|
memcpy((char*)header + off, chunks[i], chunk_full_size);
|
|
off += chunk_full_size;
|
|
}
|
|
|
|
return std::make_pair((void*)header, total_size);
|
|
}
|