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authorjohndoe1232011-06-24 15:36:35 +0000
committerWillem Jan Palenstijn2013-05-08 20:30:57 +0200
commit70d20096c16b983d254366b82e725ce14e5b195c (patch)
treed69d8b5430be6747647534a8bb3f1a390b9761c8 /engines
parent3b00cfa669a94490e727b065f14fb9216d43351c (diff)
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NEVERHOOD: Start with the resource manager
Diffstat (limited to 'engines')
-rw-r--r--engines/neverhood/blbarchive.cpp10
-rw-r--r--engines/neverhood/blbarchive.h3
-rw-r--r--engines/neverhood/module.mk3
-rw-r--r--engines/neverhood/neverhood.cpp19
-rw-r--r--engines/neverhood/resourceman.cpp167
-rw-r--r--engines/neverhood/resourceman.h78
6 files changed, 274 insertions, 6 deletions
diff --git a/engines/neverhood/blbarchive.cpp b/engines/neverhood/blbarchive.cpp
index 48452efa8b..4259be33f7 100644
--- a/engines/neverhood/blbarchive.cpp
+++ b/engines/neverhood/blbarchive.cpp
@@ -49,7 +49,7 @@ void BlbArchive::open(const Common::String &filename) {
if (header.id1 != 0x2004940 || header.id2 != 7 || header.fileSize != _fd.size())
error("BlbArchive::open() %s seems to be corrupt", filename.c_str());
- debug("fileCount = %d", header.fileCount);
+ debug(2, "fileCount = %d", header.fileCount);
_entries.reserve(header.fileCount);
@@ -70,7 +70,7 @@ void BlbArchive::open(const Common::String &filename) {
entry.offset = _fd.readUint32LE();
entry.diskSize = _fd.readUint32LE();
entry.size = _fd.readUint32LE();
- debug("%08X: %03d, %02X, %04X, %08X, %08X, %08X, %08X",
+ debug(2, "%08X: %03d, %02X, %04X, %08X, %08X, %08X, %08X",
entry.fileHash, entry.type, entry.comprType, entry.extDataOfs, entry.timeStamp,
entry.offset, entry.diskSize, entry.size);
}
@@ -84,7 +84,6 @@ void BlbArchive::open(const Common::String &filename) {
}
void BlbArchive::load(uint index, byte *buffer, uint32 size) {
-
BlbArchiveEntry &entry = _entries[index];
_fd.seek(entry.offset);
@@ -104,4 +103,9 @@ void BlbArchive::load(uint index, byte *buffer, uint32 size) {
}
+byte *BlbArchive::getEntryExtData(uint index) {
+ BlbArchiveEntry &entry = _entries[index];
+ return _extData && entry.extDataOfs != 0 ? &_extData[entry.extDataOfs - 1] : NULL;
+}
+
} // End of namespace Neverhood
diff --git a/engines/neverhood/blbarchive.h b/engines/neverhood/blbarchive.h
index 7fc54d90a7..3c373ccc96 100644
--- a/engines/neverhood/blbarchive.h
+++ b/engines/neverhood/blbarchive.h
@@ -54,7 +54,10 @@ public:
~BlbArchive();
void open(const Common::String &filename);
void load(uint index, byte *buffer, uint32 size);
+ byte *getEntryExtData(uint index);
uint32 getSize(uint index) { return _entries[index].size; }
+ BlbArchiveEntry *getEntry(uint index) { return &_entries[index]; }
+ uint getCount() { return _entries.size(); }
private:
Common::File _fd;
Common::Array<BlbArchiveEntry> _entries;
diff --git a/engines/neverhood/module.mk b/engines/neverhood/module.mk
index 0601f54d82..bdb6d8684e 100644
--- a/engines/neverhood/module.mk
+++ b/engines/neverhood/module.mk
@@ -3,7 +3,8 @@ MODULE := engines/neverhood
MODULE_OBJS = \
blbarchive.o \
detection.o \
- neverhood.o
+ neverhood.o \
+ resourceman.o
# This module can be built as a plugin
ifdef BUILD_PLUGINS
diff --git a/engines/neverhood/neverhood.cpp b/engines/neverhood/neverhood.cpp
index 873d7ff8ed..9254f886c0 100644
--- a/engines/neverhood/neverhood.cpp
+++ b/engines/neverhood/neverhood.cpp
@@ -38,6 +38,7 @@
#include "neverhood/neverhood.h"
#include "neverhood/blbarchive.h"
+#include "neverhood/resourceman.h"
namespace Neverhood {
@@ -67,11 +68,25 @@ Common::Error NeverhoodEngine::run() {
_isSaveAllowed = false;
-
+#if 0
BlbArchive *blb = new BlbArchive();
blb->open("m.blb");
-
delete blb;
+#endif
+
+#if 1
+ ResourceMan *res = new ResourceMan();
+ res->addArchive("a.blb");
+ res->addArchive("c.blb");
+ res->addArchive("hd.blb");
+ res->addArchive("i.blb");
+ res->addArchive("m.blb");
+ res->addArchive("s.blb");
+ res->addArchive("t.blb");
+
+ ResourceFileEntry *r = res->findEntry(0x50A80517);
+
+#endif
return Common::kNoError;
}
diff --git a/engines/neverhood/resourceman.cpp b/engines/neverhood/resourceman.cpp
new file mode 100644
index 0000000000..59e3fad14a
--- /dev/null
+++ b/engines/neverhood/resourceman.cpp
@@ -0,0 +1,167 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#include "neverhood/resourceman.h"
+
+namespace Neverhood {
+
+ResourceMan::ResourceMan() {
+}
+
+ResourceMan::~ResourceMan() {
+}
+
+void ResourceMan::addArchive(const Common::String &filename) {
+ BlbArchive *archive = new BlbArchive();
+ uint archiveIndex = _archives.size();
+ archive->open(filename);
+ _archives.push_back(archive);
+ debug("ResourceMan::addArchive(%s) %d files", filename.c_str(), archive->getCount());
+ _entries.reserve(_entries.size() + archive->getCount());
+ for (uint archiveEntryIndex = 0; archiveEntryIndex < archive->getCount(); archiveEntryIndex++) {
+ BlbArchiveEntry *archiveEntry = archive->getEntry(archiveEntryIndex);
+ ResourceFileEntry *entry = findEntrySimple(archiveEntry->fileHash);
+ if (entry) {
+ if (archiveEntry->timeStamp > _archives[entry->archiveIndex]->getEntry(entry->entryIndex)->timeStamp) {
+ entry->archiveIndex = archiveIndex;
+ entry->entryIndex = archiveEntryIndex;
+ }
+ } else {
+ ResourceFileEntry newEntry;
+ newEntry.fileHash = archiveEntry->fileHash;
+ newEntry.resourceHandle = -1;
+ newEntry.archiveIndex = archiveIndex;
+ newEntry.entryIndex = archiveEntryIndex;
+ _entries.push_back(newEntry);
+ }
+ }
+}
+
+ResourceFileEntry *ResourceMan::findEntrySimple(uint32 fileHash) {
+ for (uint i = 0; i < _entries.size(); i++) {
+ if (_entries[i].fileHash == fileHash)
+ return &_entries[i];
+ }
+ return NULL;
+}
+
+ResourceFileEntry *ResourceMan::findEntry(uint32 fileHash) {
+ ResourceFileEntry *entry = findEntrySimple(fileHash);
+ for (; entry && getArchiveEntry(entry)->comprType == 0x65; fileHash = getArchiveEntry(entry)->diskSize)
+ entry = findEntrySimple(fileHash);
+ return entry;
+}
+
+BlbArchiveEntry *ResourceMan::getArchiveEntry(ResourceFileEntry *entry) const {
+ return _archives[entry->archiveIndex]->getEntry(entry->entryIndex);
+}
+
+int ResourceMan::useResource(uint32 fileHash) {
+ ResourceFileEntry *entry = findEntry(fileHash);
+ if (entry->resourceHandle != -1) {
+ _resources[entry->resourceHandle]->useRefCount++;
+ } else {
+ Resource *resource = new Resource();
+ resource->fileHash = entry->fileHash;
+ resource->archiveIndex = entry->archiveIndex;
+ resource->entryIndex = entry->entryIndex;
+ resource->data = NULL;
+ resource->dataRefCount = 0;
+ resource->useRefCount = 1;
+ entry->resourceHandle = (int)_resources.size();
+ _resources.push_back(resource);
+ }
+ return entry->resourceHandle;
+}
+
+void ResourceMan::unuseResource(int resourceHandle) {
+ Resource *resource = _resources[resourceHandle];
+ if (resource->useRefCount > 0)
+ resource->useRefCount--;
+}
+
+void ResourceMan::unuseResourceByHash(uint32 fileHash) {
+ ResourceFileEntry *entry = findEntry(fileHash);
+ if (entry->resourceHandle != -1)
+ unuseResource(entry->resourceHandle);
+}
+
+int ResourceMan::getResourceHandleByHash(uint32 fileHash) {
+ ResourceFileEntry *entry = findEntry(fileHash);
+ return entry->resourceHandle;
+}
+
+bool ResourceMan::isResourceDataValid(int resourceHandle) const {
+ return _resources[resourceHandle]->data != NULL;
+}
+
+uint32 ResourceMan::getResourceSize(int resourceHandle) const {
+ Resource *resource = _resources[resourceHandle];
+ return _archives[resource->archiveIndex]->getEntry(resource->entryIndex)->size;
+}
+
+byte ResourceMan::getResourceType(int resourceHandle) {
+ Resource *resource = _resources[resourceHandle];
+ return _archives[resource->archiveIndex]->getEntry(resource->entryIndex)->type;
+}
+
+byte ResourceMan::getResourceTypeByHash(uint32 fileHash) {
+ ResourceFileEntry *entry = findEntry(fileHash);
+ return getArchiveEntry(entry)->type;
+}
+
+byte *ResourceMan::getResourceExtData(int resourceHandle) {
+ Resource *resource = _resources[resourceHandle];
+ return _archives[resource->archiveIndex]->getEntryExtData(resource->entryIndex);
+}
+
+byte *ResourceMan::getResourceExtDataByHash(uint32 fileHash) {
+ ResourceFileEntry *entry = findEntry(fileHash);
+ return _archives[entry->archiveIndex]->getEntryExtData(entry->entryIndex);
+}
+
+byte *ResourceMan::loadResource(int resourceHandle, bool moveToFront) {
+ Resource *resource = _resources[resourceHandle];
+ if (resource->data != NULL) {
+ resource->dataRefCount++;
+ } else {
+ BlbArchive *archive = _archives[resource->archiveIndex];
+ BlbArchiveEntry *archiveEntry = archive->getEntry(resource->entryIndex);
+ resource->data = new byte[archiveEntry->size];
+ archive->load(resource->entryIndex, resource->data, 0);
+ resource->dataRefCount = 1;
+ }
+ return resource->data;
+}
+
+void ResourceMan::unloadResource(int resourceHandle) {
+ Resource *resource = _resources[resourceHandle];
+ if (resource->dataRefCount > 0)
+ resource->dataRefCount--;
+}
+
+void ResourceMan::freeResource(Resource *resource) {
+ delete[] resource->data;
+ resource->data = NULL;
+}
+
+} // End of namespace Neverhood
diff --git a/engines/neverhood/resourceman.h b/engines/neverhood/resourceman.h
new file mode 100644
index 0000000000..0dd70e13a2
--- /dev/null
+++ b/engines/neverhood/resourceman.h
@@ -0,0 +1,78 @@
+/* ScummVM - Graphic Adventure Engine
+ *
+ * ScummVM is the legal property of its developers, whose names
+ * are too numerous to list here. Please refer to the COPYRIGHT
+ * file distributed with this source distribution.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ *
+ */
+
+#ifndef NEVERHOOD_RESOURCEMAN_H
+#define NEVERHOOD_RESOURCEMAN_H
+
+#include "common/array.h"
+#include "common/file.h"
+#include "neverhood/neverhood.h"
+#include "neverhood/blbarchive.h"
+
+namespace Neverhood {
+
+struct ResourceFileEntry {
+ uint32 fileHash;
+ int resourceHandle;
+ uint archiveIndex;
+ uint entryIndex;
+};
+
+struct Resource {
+ uint32 fileHash;
+ uint archiveIndex;
+ uint entryIndex;
+ byte *data;
+ int dataRefCount;
+ int useRefCount;
+};
+
+class ResourceMan {
+public:
+ ResourceMan();
+ ~ResourceMan();
+ void addArchive(const Common::String &filename);
+ ResourceFileEntry *findEntrySimple(uint32 fileHash);
+ ResourceFileEntry *findEntry(uint32 fileHash);
+ BlbArchiveEntry *getArchiveEntry(ResourceFileEntry *entry) const;
+ int useResource(uint32 fileHash);
+ void unuseResource(int resourceHandle);
+ void unuseResourceByHash(uint32 fileHash);
+ int getResourceHandleByHash(uint32 fileHash);
+ bool isResourceDataValid(int resourceHandle) const;
+ uint32 getResourceSize(int resourceHandle) const;
+ byte getResourceType(int resourceHandle);
+ byte getResourceTypeByHash(uint32 fileHash);
+ byte *getResourceExtData(int resourceHandle);
+ byte *getResourceExtDataByHash(uint32 fileHash);
+ byte *loadResource(int resourceHandle, bool moveToFront = false);
+ void unloadResource(int resourceHandle);
+ void freeResource(Resource *resource);
+private:
+ Common::Array<BlbArchive*> _archives;
+ Common::Array<ResourceFileEntry> _entries;
+ Common::Array<Resource*> _resources;
+};
+
+} // End of namespace Neverhood
+
+#endif /* NEVERHOOD_RESOURCEMAN_H */