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BLADERUNNER: First pass at slice animation renderer
Z-buffers are not being read from the VQA background yet, so z-buffer handling is faked for now.
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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. | ||
* | ||
*/ | ||
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#include "bladerunner/slice_animations.h" | ||
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#include "bladerunner/bladerunner.h" | ||
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#include "common/debug.h" | ||
#include "common/file.h" | ||
#include "common/system.h" | ||
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namespace BladeRunner { | ||
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bool SliceAnimations::open(const Common::String &name) { | ||
Common::File file; | ||
if (!file.open(_vm->getResourceStream(name), name)) | ||
return false; | ||
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_timestamp = file.readUint32LE(); | ||
_pageSize = file.readUint32LE(); | ||
_pageCount = file.readUint32LE(); | ||
_paletteCount = file.readUint32LE(); | ||
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if (_timestamp != 0x3457b6f6) // Timestamp: Wed, 29 Oct 1997 22:21:42 GMT | ||
return false; | ||
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_palettes.resize(_paletteCount); | ||
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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(); | ||
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uint16 rgb555 = ((uint16)color_r << 10) | | ||
((uint16)color_g << 5) | | ||
(uint16)color_b; | ||
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_palettes[i][j] = rgb555; | ||
} | ||
} | ||
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uint32 animationCount = file.readUint32LE(); | ||
_animations.resize(animationCount); | ||
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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(); | ||
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#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 | ||
} | ||
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_pages.resize(_pageCount); | ||
for (uint32 i = 0; i != _pageCount; ++i) | ||
_pages[i]._data = nullptr; | ||
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return true; | ||
} | ||
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SliceAnimations::~SliceAnimations() { | ||
for (uint32 i = 0; i != _pageCount; ++i) | ||
free(_pages[i]._data); | ||
} | ||
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bool SliceAnimations::openCoreAnim() { | ||
return _coreAnimPageFile.open("COREANIM.DAT"); | ||
} | ||
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bool SliceAnimations::openHDFrames() { | ||
return _framesPageFile.open("HDFRAMES.DAT"); | ||
} | ||
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bool SliceAnimations::PageFile::open(const Common::String &name) { | ||
if (!_file.open(name)) | ||
return false; | ||
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uint32 timestamp = _file.readUint32LE(); | ||
if (timestamp != _sliceAnimations->_timestamp) | ||
return false; | ||
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_pageOffsets.resize(_sliceAnimations->_pageCount); | ||
for (uint32 i = 0; i != _sliceAnimations->_pageCount; ++i) | ||
_pageOffsets[i] = -1; | ||
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uint32 pageCount = _file.readUint32LE(); | ||
uint32 dataOffset = 8 + 4 * pageCount; | ||
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for (uint32 i = 0; i != pageCount; ++i) { | ||
uint32 pageNumber = _file.readUint32LE(); | ||
if (pageNumber == 0xffffffff) | ||
continue; | ||
_pageOffsets[pageNumber] = dataOffset + i * _sliceAnimations->_pageSize; | ||
} | ||
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debug("PageFile::Open: page file \"%s\" opened with %d pages", name.c_str(), pageCount); | ||
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return true; | ||
} | ||
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void *SliceAnimations::PageFile::loadPage(uint32 pageNumber) { | ||
if (_pageOffsets[pageNumber] == -1) | ||
return nullptr; | ||
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uint32 pageSize = _sliceAnimations->_pageSize; | ||
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// TODO: Retire oldest pages if we exceed some memory limit | ||
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void *data = malloc(pageSize); | ||
_file.seek(_pageOffsets[pageNumber], SEEK_SET); | ||
uint32 r = _file.read(data, pageSize); | ||
assert(r == pageSize); | ||
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return data; | ||
} | ||
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void *SliceAnimations::getFramePtr(uint32 animation, uint32 frame) { | ||
assert(frame < _animations[animation].frameCount); | ||
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uint32 frameOffset = _animations[animation].offset + frame * _animations[animation].frameSize; | ||
uint32 page = frameOffset / _pageSize; | ||
uint32 pageOffset = frameOffset % _pageSize; | ||
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if (!_pages[page]._data) | ||
_pages[page]._data = _coreAnimPageFile.loadPage(page); | ||
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if (!_pages[page]._data) | ||
_pages[page]._data = _framesPageFile.loadPage(page); | ||
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if (!_pages[page]._data) | ||
error("Unable to locate page %d for animation %d frame %d", page, animation, frame); | ||
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_pages[page]._lastAccess = _vm->_system->getMillis(); | ||
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return (byte*)_pages[page]._data + pageOffset; | ||
} | ||
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} // End of namespace BladeRunner |
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