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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.
*
*/
#include "prince/animation.h"
#include "prince/decompress.h"
#include "common/debug.h"
#include "common/endian.h"
namespace Prince {
bool Animation::loadFromStream(Common::SeekableReadStream &stream) {
_dataSize = stream.size();
_data = (byte *)malloc(_dataSize);
if (stream.read(_data, _dataSize) != _dataSize) {
free(_data);
return false;
}
return true;
}
Animation::Animation(): _data(NULL) {
}
Animation::Animation(byte *data, uint32 dataSize)
: _data(data), _dataSize(dataSize) {
}
Animation::~Animation() {
free(_data);
}
void Animation::clear() {
if (_data != NULL) {
free(_data);
}
}
// AH_Loop
int16 Animation::getLoopCount() const {
return READ_LE_UINT16(_data + 2);
}
// AH_Fazy
int32 Animation::getPhaseCount() const {
return READ_LE_UINT16(_data + 4);
}
// AH_Ramki
int32 Animation::getFrameCount() const {
return READ_LE_UINT16(_data + 6);
}
// AH_X
int16 Animation::getBaseX() const {
return READ_LE_UINT16(_data + 8);
}
// AH_Y
int16 Animation::getBaseY() const {
return READ_LE_UINT16(_data + 10);
}
byte *Animation::getPhaseEntry(uint phaseIndex) const {
return _data + READ_LE_UINT32(_data + 12) + phaseIndex * 8;
}
int16 Animation::getPhaseOffsetX(uint phaseIndex) const {
return READ_LE_UINT16(getPhaseEntry(phaseIndex) + 0);
}
int16 Animation::getPhaseOffsetY(uint phaseIndex) const {
return READ_LE_UINT16(getPhaseEntry(phaseIndex) + 2);
}
int16 Animation::getPhaseFrameIndex(uint phaseIndex) const {
return READ_LE_UINT16(getPhaseEntry(phaseIndex) + 4);
}
int16 Animation::getFrameWidth(uint frameIndex) const {
byte *frameData = _data + READ_LE_UINT32(_data + 16 + frameIndex * 4);
return READ_LE_UINT16(frameData + 0);
}
int16 Animation::getFrameHeight(uint frameIndex) const {
byte *frameData = _data + READ_LE_UINT32(_data + 16 + frameIndex * 4);
return READ_LE_UINT16(frameData + 2);
}
Graphics::Surface *Animation::getFrame(uint frameIndex) {
byte *frameData = _data + READ_LE_UINT32(_data + 16 + frameIndex * 4);
int16 width = READ_LE_UINT16(frameData + 0);
int16 height = READ_LE_UINT16(frameData + 2);
//debug("width = %d; height = %d", width, height);
Graphics::Surface *surf = new Graphics::Surface();
surf->create(width, height, Graphics::PixelFormat::createFormatCLUT8());
//debug("frameData %p", frameData);
if (READ_BE_UINT32(frameData + 4) == MKTAG('m', 'a', 's', 'm')) {
// Compressed
Decompressor dec;
uint32 ddataSize = READ_LE_UINT32(frameData + 8);
byte *ddata = (byte *)malloc(ddataSize);
dec.decompress(frameData + 12, ddata, ddataSize);
for (uint16 i = 0; i < height; i++) {
memcpy(surf->getBasePtr(0, i), ddata + width * i, width);
}
free(ddata);
} else {
// Uncompressed
for (uint16 i = 0; i < height; i++) {
memcpy(surf->getBasePtr(0, i), frameData + 4 + width * i, width);
}
}
return surf;
}
}
/* vim: set tabstop=4 noexpandtab: */
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