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      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 
     28 namespace tcu
     29 {
     30 
     31 DirArchive::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 
     39 DirArchive::~DirArchive ()
     40 {
     41 }
     42 
     43 Resource* DirArchive::getResource (const char* name) const
     44 {
     45 	return static_cast<Resource*>(new FileResource((m_path + name).c_str()));
     46 }
     47 
     48 FileResource::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 
     56 FileResource::~FileResource ()
     57 {
     58 	fclose(m_file);
     59 }
     60 
     61 void FileResource::read (deUint8* dst, int numBytes)
     62 {
     63 	int numRead = (int)fread(dst, 1, numBytes, m_file);
     64 	TCU_CHECK(numRead == numBytes);
     65 }
     66 
     67 int 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 
     76 int FileResource::getPosition (void) const
     77 {
     78 	return (int)ftell(m_file);
     79 }
     80 
     81 void FileResource::setPosition (int position)
     82 {
     83 	fseek(m_file, (size_t)position, SEEK_SET);
     84 }
     85 
     86 ResourcePrefix::ResourcePrefix (const Archive& archive, const char* prefix)
     87 	: m_archive	(archive)
     88 	, m_prefix	(prefix)
     89 {
     90 }
     91 
     92 Resource* ResourcePrefix::getResource (const char* name) const
     93 {
     94 	return m_archive.getResource((m_prefix + name).c_str());
     95 }
     96 
     97 } // tcu
     98