1/*-------------------------------------------------------------------------
2 * drawElements Quality Program Tester Core
3 * ----------------------------------------
4 *
5 * Copyright 2014 The Android Open Source Project
6 *
7 * Licensed under the Apache License, Version 2.0 (the "License");
8 * you may not use this file except in compliance with the License.
9 * You may obtain a copy of the License at
10 *
11 *      http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing, software
14 * distributed under the License is distributed on an "AS IS" BASIS,
15 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
16 * See the License for the specific language governing permissions and
17 * limitations under the License.
18 *
19 *//*!
20 * \file
21 * \brief Resource system.
22 *//*--------------------------------------------------------------------*/
23
24#include "tcuResource.hpp"
25
26#include <stdio.h>
27
28namespace tcu
29{
30
31DirArchive::DirArchive (const char* path)
32	: m_path(path)
33{
34	// Append leading / if necessary
35	if (m_path.length() > 0 && m_path[m_path.length()-1] != '/')
36		m_path += "/";
37}
38
39DirArchive::~DirArchive ()
40{
41}
42
43Resource* DirArchive::getResource (const char* name) const
44{
45	return static_cast<Resource*>(new FileResource((m_path + name).c_str()));
46}
47
48FileResource::FileResource (const char* filename)
49	: Resource(std::string(filename))
50{
51	m_file = fopen(filename, "rb");
52	if (!m_file)
53		throw ResourceError("Failed to open file", filename, __FILE__, __LINE__);
54}
55
56FileResource::~FileResource ()
57{
58	fclose(m_file);
59}
60
61void FileResource::read (deUint8* dst, int numBytes)
62{
63	int numRead = (int)fread(dst, 1, numBytes, m_file);
64	TCU_CHECK(numRead == numBytes);
65}
66
67int FileResource::getSize (void) const
68{
69	long curPos = ftell(m_file);
70	fseek(m_file, 0, SEEK_END);
71	int size = (int)ftell(m_file);
72	fseek(m_file, curPos, SEEK_SET);
73	return size;
74}
75
76int FileResource::getPosition (void) const
77{
78	return (int)ftell(m_file);
79}
80
81void FileResource::setPosition (int position)
82{
83	fseek(m_file, (size_t)position, SEEK_SET);
84}
85
86ResourcePrefix::ResourcePrefix (const Archive& archive, const char* prefix)
87	: m_archive	(archive)
88	, m_prefix	(prefix)
89{
90}
91
92Resource* ResourcePrefix::getResource (const char* name) const
93{
94	return m_archive.getResource((m_prefix + name).c_str());
95}
96
97} // tcu
98