forked from logzhan/UPBot-Pioneer
105 lines
3.0 KiB
C++
105 lines
3.0 KiB
C++
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/*
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* This file is part of the OpenKinect Project. http://www.openkinect.org
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*
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* Copyright (c) 2014 individual OpenKinect contributors. See the CONTRIB file
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* for details.
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*
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* This code is licensed to you under the terms of the Apache License, version
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* 2.0, or, at your option, the terms of the GNU General Public License,
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* version 2.0. See the APACHE20 and GPL2 files for the text of the licenses,
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* or the following URLs:
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* http://www.apache.org/licenses/LICENSE-2.0
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* http://www.gnu.org/licenses/gpl-2.0.txt
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*
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* If you redistribute this file in source form, modified or unmodified, you
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* may:
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* 1) Leave this header intact and distribute it under the same terms,
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* accompanying it with the APACHE20 and GPL20 files, or
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* 2) Delete the Apache 2.0 clause and accompany it with the GPL2 file, or
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* 3) Delete the GPL v2 clause and accompany it with the APACHE20 file
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* In all cases you must keep the copyright notice intact and include a copy
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* of the CONTRIB file.
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*
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* Binary distributions must follow the binary distribution requirements of
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* either License.
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*/
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/** @file resource.cpp Implementation of resource loading (from file or in-program). */
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#include <libfreenect2/resource.h>
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#include <libfreenect2/logging.h>
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#include <string>
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#include <cstring>
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namespace libfreenect2
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{
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/** Meta information of an in-program resource. */
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struct ResourceDescriptor
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{
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const char *filename;
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const unsigned char *data;
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size_t length;
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};
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#ifdef RESOURCES_INC
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#include "resources.inc.h"
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#else
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static ResourceDescriptor resource_descriptors[] = {{NULL, NULL, 0}};
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static int resource_descriptors_length = 0;
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#endif
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/**
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* Find data of a requested resource.
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* @param name Name of the resource to retrieve.
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* @param [out] data Address of the resource data, if found.
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* @param [out] Length of the resource data, if found.
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* @return Whether the resource could be retrieved.
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*/
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bool loadResource(const std::string &name, unsigned char const**data, size_t *length)
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{
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bool result = false;
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for(int i = 0; i < resource_descriptors_length; ++i)
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{
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if(name.compare(resource_descriptors[i].filename) == 0)
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{
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*data = resource_descriptors[i].data;
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*length = resource_descriptors[i].length;
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result = true;
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break;
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}
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}
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return result;
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}
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/**
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* Get resource data into a supplied buffer.
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* @param filename Name of the file to get.
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* @param buffer Buffer to use as target storage.
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* @param n Size of the supplied buffer.
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* @return Whether the requested resource could be loaded (copied) into the supplied buffer.
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*/
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bool loadBufferFromResources(const std::string &filename, unsigned char *buffer, const size_t n)
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{
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size_t length = 0;
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const unsigned char *data = NULL;
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if(!loadResource(filename, &data, &length))
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{
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LOG_ERROR << "failed to load resource: " << filename;
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return false;
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}
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if(length != n)
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{
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LOG_ERROR << "wrong size of resource: " << filename;
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return false;
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}
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memcpy(buffer, data, length);
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return true;
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}
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} /* namespace libfreenect2 */
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