a42bf545fc
git-svn-id: http://asylumengine.googlecode.com/svn/trunk@31 0bfb4aae-4ea4-11de-8d8d-752d95cf3e3c
101 lines
2.1 KiB
C++
101 lines
2.1 KiB
C++
/*
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* resourcemanager.cpp
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*
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* Created on: 7-Jun-2009
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* Author: alex
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*/
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#include "asylum/resourcemanager.h"
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#include "asylum/resources/palette.h"
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namespace Asylum {
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ResourceManager::ResourceManager() {
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}
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ResourceManager::~ResourceManager() {
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}
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int ResourceManager::addBundle(Common::String filename) {
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Common::File* file = new Common::File;
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Bundle* bun = new Bundle;
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bun->id = filename;
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// load the file
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if (!file || !file->open(filename)) {
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printf("Failed to load file %s", filename.c_str());
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return -1;
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}
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bun->size = file->size();
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// read the entry count
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file->read( &bun->numEntries, 4 );
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// create the resource item array and
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// set the item offset for each entry
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for (uint8 i = 0; i < bun->numEntries; i++) {
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Resource *res = new Resource;
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file->read(&res->offset, 4);
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bun->entries.push_back(*res);
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}
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// set the last entry's offset to the filesize
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bun->entries[bun->numEntries - 1].offset = bun->size - file->pos();
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// calculate each entry's size based on the offset
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// information
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for (uint8 j = 0; j < bun->numEntries; j++) {
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if (bun->entries[j].offset == 0) {
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bun->entries[j].size = 0;
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continue;
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}
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bun->entries[j].size = getNextValidOffset(bun, j+1) - bun->entries[j].offset;
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}
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// populate the data
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for (uint8 k = 0; k < bun->numEntries; k++) {
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if (bun->entries[k].size > 0) {
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bun->entries[k].data = (uint8*)malloc(bun->entries[k].size);
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file->seek(bun->entries[k].offset, SEEK_SET);
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file->read(bun->entries[k].data, bun->entries[k].size);
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}
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}
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file->close();
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file = NULL;
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return 0;
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}
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GraphicBundle ResourceManager::getGraphic(Common::String file, uint32 offset) {
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GraphicBundle *bun = new GraphicBundle(file, offset);
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return *bun;
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}
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PaletteResource ResourceManager::getPalette(Common::String file, uint32 offset) {
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Bundle *bun = new Bundle(file, offset);
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PaletteResource *pal = new PaletteResource(bun->getData());
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delete bun;
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return *pal;
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}
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uint32 ResourceManager::getNextValidOffset(Bundle *bun, uint8 pos) {
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for (uint8 i = pos; i < bun->numEntries; i++) {
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if (bun->entries[i].offset != 0) {
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return bun->entries[i].offset;
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}
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}
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return bun->size;
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}
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} // end of namespace Asylum
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