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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 "bladerunner/slice_animations.h"
#include "bladerunner/bladerunner.h"
#include "common/debug.h"
#include "common/file.h"
#include "common/system.h"
namespace BladeRunner {
bool SliceAnimations::open(const Common::String &name) {
Common::File file;
if (!file.open(_vm->getResourceStream(name), name))
return false;
_timestamp = file.readUint32LE();
_pageSize = file.readUint32LE();
_pageCount = file.readUint32LE();
_paletteCount = file.readUint32LE();
if (_timestamp != 0x3457b6f6) // Timestamp: Wed, 29 Oct 1997 22:21:42 GMT
return false;
_palettes.resize(_paletteCount);
for (uint32 i = 0; i != _paletteCount; ++i) {
for (uint32 j = 0; j != 256; ++j) {
uint8 color_r = file.readByte();
uint8 color_g = file.readByte();
uint8 color_b = file.readByte();
uint16 rgb555 = ((uint16)color_r << 10) |
((uint16)color_g << 5) |
(uint16)color_b;
_palettes[i][j] = rgb555;
}
}
uint32 animationCount = file.readUint32LE();
_animations.resize(animationCount);
for (uint32 i = 0; i != animationCount; ++i) {
_animations[i].frameCount = file.readUint32LE();
_animations[i].frameSize = file.readUint32LE();
_animations[i].fps = file.readFloatLE();
_animations[i].unk0 = file.readFloatLE();
_animations[i].unk1 = file.readFloatLE();
_animations[i].unk2 = file.readFloatLE();
_animations[i].unk3 = file.readFloatLE();
_animations[i].offset = file.readUint32LE();
#if 0
debug("%4d %6d %6x %7.2g %7.2g %7.2g %7.2g %7.2g %8x",
i,
_animations[i].frameCount,
_animations[i].frameSize,
_animations[i].fps,
_animations[i].unk0,
_animations[i].unk1,
_animations[i].unk2,
_animations[i].unk3,
_animations[i].offset);
#endif
}
_pages.resize(_pageCount);
for (uint32 i = 0; i != _pageCount; ++i)
_pages[i]._data = nullptr;
return true;
}
SliceAnimations::~SliceAnimations() {
for (uint32 i = 0; i != _pages.size(); ++i)
free(_pages[i]._data);
}
bool SliceAnimations::openCoreAnim() {
return _coreAnimPageFile.open("COREANIM.DAT");
}
bool SliceAnimations::openHDFrames() {
return _framesPageFile.open("HDFRAMES.DAT");
}
bool SliceAnimations::PageFile::open(const Common::String &name) {
if (!_file.open(name))
return false;
uint32 timestamp = _file.readUint32LE();
if (timestamp != _sliceAnimations->_timestamp)
return false;
_pageOffsets.resize(_sliceAnimations->_pageCount);
for (uint32 i = 0; i != _sliceAnimations->_pageCount; ++i)
_pageOffsets[i] = -1;
uint32 pageCount = _file.readUint32LE();
uint32 dataOffset = 8 + 4 * pageCount;
for (uint32 i = 0; i != pageCount; ++i) {
uint32 pageNumber = _file.readUint32LE();
if (pageNumber == 0xffffffff)
continue;
_pageOffsets[pageNumber] = dataOffset + i * _sliceAnimations->_pageSize;
}
// debug("PageFile::Open: page file \"%s\" opened with %d pages", name.c_str(), pageCount);
return true;
}
void *SliceAnimations::PageFile::loadPage(uint32 pageNumber) {
if (_pageOffsets[pageNumber] == -1)
return nullptr;
uint32 pageSize = _sliceAnimations->_pageSize;
// TODO: Retire oldest pages if we exceed some memory limit
void *data = malloc(pageSize);
_file.seek(_pageOffsets[pageNumber], SEEK_SET);
uint32 r = _file.read(data, pageSize);
assert(r == pageSize);
return data;
}
void *SliceAnimations::getFramePtr(uint32 animation, uint32 frame) {
assert(frame < _animations[animation].frameCount);
uint32 frameOffset = _animations[animation].offset + frame * _animations[animation].frameSize;
uint32 page = frameOffset / _pageSize;
uint32 pageOffset = frameOffset % _pageSize;
if (!_pages[page]._data)
_pages[page]._data = _coreAnimPageFile.loadPage(page);
if (!_pages[page]._data)
_pages[page]._data = _framesPageFile.loadPage(page);
if (!_pages[page]._data)
error("Unable to locate page %d for animation %d frame %d", page, animation, frame);
_pages[page]._lastAccess = _vm->_system->getMillis();
return (byte*)_pages[page]._data + pageOffset;
}
} // End of namespace BladeRunner
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