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/* 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.
*
*/
/*
* This code is based on Broken Sword 2.5 engine
*
* Copyright (c) Malte Thiesen, Daniel Queteschiner and Michael Elsdoerfer
*
* Licensed under GNU GPL v2
*
*/
#include "sword25/gfx/animationresource.h"
#include "sword25/kernel/kernel.h"
#include "sword25/kernel/resmanager.h" // for PRECACHE_RESOURCES
#include "sword25/package/packagemanager.h"
#include "sword25/gfx/bitmapresource.h"
namespace Sword25 {
enum {
DEFAULT_FPS = 10,
MIN_FPS = 1,
MAX_FPS = 200
};
AnimationResource::AnimationResource(const Common::String &filename) :
Resource(filename, Resource::TYPE_ANIMATION),
Common::XMLParser(),
_valid(false) {
// Get a pointer to the package manager
_pPackage = Kernel::getInstance()->getPackage();
assert(_pPackage);
// Switch to the folder the specified Xml fiile is in
Common::String oldDirectory = _pPackage->getCurrentDirectory();
if (getFileName().contains('/')) {
Common::String dir = Common::String(getFileName().c_str(), strrchr(getFileName().c_str(), '/'));
_pPackage->changeDirectory(dir);
}
// Load the contents of the file
uint fileSize;
char *xmlData = _pPackage->getXmlFile(getFileName(), &fileSize);
if (!xmlData) {
error("Could not read \"%s\".", getFileName().c_str());
return;
}
// Parse the contents
if (!loadBuffer((const byte *)xmlData, fileSize))
return;
_valid = parse();
close();
free(xmlData);
// Switch back to the previous folder
_pPackage->changeDirectory(oldDirectory);
// Give an error message if there weren't any frames specified
if (_frames.empty()) {
error("\"%s\" does not have any frames.", getFileName().c_str());
return;
}
// Pre-cache all the frames
if (!precacheAllFrames()) {
error("Could not precache all frames of \"%s\".", getFileName().c_str());
return;
}
// Post processing to compute animation features
if (!computeFeatures()) {
error("Could not determine the features of \"%s\".", getFileName().c_str());
return;
}
_valid = true;
}
bool AnimationResource::parseBooleanKey(Common::String s, bool &result) {
s.toLowercase();
if (!strcmp(s.c_str(), "true"))
result = true;
else if (!strcmp(s.c_str(), "false"))
result = false;
else
return false;
return true;
}
bool AnimationResource::parserCallback_animation(ParserNode *node) {
if (!parseIntegerKey(node->values["fps"], 1, &_FPS) || (_FPS < MIN_FPS) || (_FPS > MAX_FPS)) {
return parserError(Common::String::format("Illegal or missing fps attribute in <animation> tag in \"%s\". Assuming default (\"%d\").",
getFileName().c_str(), DEFAULT_FPS));
}
// Loop type value
const char *loopTypeString = node->values["type"].c_str();
if (strcmp(loopTypeString, "oneshot") == 0) {
_animationType = Animation::AT_ONESHOT;
} else if (strcmp(loopTypeString, "loop") == 0) {
_animationType = Animation::AT_LOOP;
} else if (strcmp(loopTypeString, "jojo") == 0) {
_animationType = Animation::AT_JOJO;
} else {
warning("Illegal type value (\"%s\") in <animation> tag in \"%s\". Assuming default (\"loop\").",
loopTypeString, getFileName().c_str());
_animationType = Animation::AT_LOOP;
}
// Calculate the milliseconds required per frame
// FIXME: Double check variable naming. Based on the constant, it may be microseconds
_millisPerFrame = 1000000 / _FPS;
return true;
}
bool AnimationResource::parserCallback_frame(ParserNode *node) {
Frame frame;
const char *fileString = node->values["file"].c_str();
if (!fileString) {
error("<frame> tag without file attribute occurred in \"%s\".", getFileName().c_str());
return false;
}
frame.fileName = _pPackage->getAbsolutePath(fileString);
if (frame.fileName.empty()) {
error("Could not create absolute path for file specified in <frame> tag in \"%s\": \"%s\".",
getFileName().c_str(), fileString);
return false;
}
const char *actionString = node->values["action"].c_str();
if (actionString)
frame.action = actionString;
const char *hotspotxString = node->values["hotspotx"].c_str();
const char *hotspotyString = node->values["hotspoty"].c_str();
if ((!hotspotxString && hotspotyString) ||
(hotspotxString && !hotspotyString))
warning("%s attribute occurred without %s attribute in <frame> tag in \"%s\". Assuming default (\"0\").",
hotspotxString ? "hotspotx" : "hotspoty",
!hotspotyString ? "hotspoty" : "hotspotx",
getFileName().c_str());
frame.hotspotX = 0;
if (hotspotxString && !parseIntegerKey(hotspotxString, 1, &frame.hotspotX))
warning("Illegal hotspotx value (\"%s\") in frame tag in \"%s\". Assuming default (\"%d\").",
hotspotxString, getFileName().c_str(), frame.hotspotX);
frame.hotspotY = 0;
if (hotspotyString && !parseIntegerKey(hotspotyString, 1, &frame.hotspotY))
warning("Illegal hotspoty value (\"%s\") in frame tag in \"%s\". Assuming default (\"%d\").",
hotspotyString, getFileName().c_str(), frame.hotspotY);
Common::String flipVString = node->values["flipv"];
if (!flipVString.empty()) {
if (!parseBooleanKey(flipVString, frame.flipV)) {
warning("Illegal flipv value (\"%s\") in <frame> tag in \"%s\". Assuming default (\"false\").",
flipVString.c_str(), getFileName().c_str());
frame.flipV = false;
}
} else
frame.flipV = false;
Common::String flipHString = node->values["fliph"];
if (!flipHString.empty()) {
if (!parseBooleanKey(flipHString, frame.flipH)) {
warning("Illegal fliph value (\"%s\") in <frame> tag in \"%s\". Assuming default (\"false\").",
flipHString.c_str(), getFileName().c_str());
frame.flipH = false;
}
} else
frame.flipH = false;
_frames.push_back(frame);
return true;
}
AnimationResource::~AnimationResource() {
}
bool AnimationResource::precacheAllFrames() const {
Common::Array<Frame>::const_iterator iter = _frames.begin();
for (; iter != _frames.end(); ++iter) {
#ifdef PRECACHE_RESOURCES
if (!Kernel::getInstance()->getResourceManager()->precacheResource((*iter).fileName)) {
error("Could not precache \"%s\".", (*iter).fileName.c_str());
return false;
}
#else
Kernel::getInstance()->getResourceManager()->requestResource((*iter).fileName);
#endif
}
return true;
}
bool AnimationResource::computeFeatures() {
assert(_frames.size());
// Alle Features werden als vorhanden angenommen
_scalingAllowed = true;
_alphaAllowed = true;
_colorModulationAllowed = true;
// Alle Frame durchgehen und alle Features deaktivieren, die auch nur von einem Frame nicht unterst�tzt werden.
Common::Array<Frame>::const_iterator iter = _frames.begin();
for (; iter != _frames.end(); ++iter) {
BitmapResource *pBitmap;
if (!(pBitmap = static_cast<BitmapResource *>(Kernel::getInstance()->getResourceManager()->requestResource((*iter).fileName)))) {
error("Could not request \"%s\".", (*iter).fileName.c_str());
return false;
}
if (!pBitmap->isScalingAllowed())
_scalingAllowed = false;
if (!pBitmap->isAlphaAllowed())
_alphaAllowed = false;
if (!pBitmap->isColorModulationAllowed())
_colorModulationAllowed = false;
pBitmap->release();
}
return true;
}
} // End of namespace Sword25
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