mirror of
https://github.com/libretro/scummvm.git
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146 lines
3.5 KiB
C++
146 lines
3.5 KiB
C++
/* ScummVM - Graphic Adventure Engine
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*
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* ScummVM is the legal property of its developers, whose names
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* are too numerous to list here. Please refer to the COPYRIGHT
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* file distributed with this source distribution.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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*
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* $URL$
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* $Id$
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*
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*/
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#include "parallaction/disk.h"
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#include "parallaction/graphics.h"
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namespace Parallaction {
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void ILBMLoader::setupBuffer(uint32 w, uint32 h) {
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_intBuffer = 0;
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switch (_bodyMode) {
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case BODYMODE_SURFACE:
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if (!_surf) {
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_surf = new Graphics::Surface;
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assert(_surf);
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}
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_surf->create(w, h, 1);
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_mode = Graphics::ILBMDecoder::ILBM_UNPACK_PLANES;
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_intBuffer = (byte*)_surf->pixels;
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break;
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case BODYMODE_MASKBUFFER:
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if (!_maskBuffer) {
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_maskBuffer = new MaskBuffer;
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assert(_maskBuffer);
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}
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_maskBuffer->create(w, h);
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_mode = Graphics::ILBMDecoder::ILBM_2_PACK_PLANES;
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_intBuffer = _maskBuffer->data;
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break;
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case BODYMODE_PATHBUFFER:
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if (!_pathBuffer) {
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_pathBuffer = new PathBuffer;
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assert(_pathBuffer);
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}
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_pathBuffer->create(w, h);
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_mode = Graphics::ILBMDecoder::ILBM_1_PACK_PLANES;
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_intBuffer = _pathBuffer->data;
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break;
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default:
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error("Invalid bodyMode '%i' for ILBMLoader", _bodyMode);
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break;
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}
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}
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bool ILBMLoader::callback(Common::IFFChunk &chunk) {
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switch (chunk._type) {
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case ID_BMHD:
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_decoder.loadHeader(chunk._stream);
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break;
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case ID_CMAP:
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if (_palette) {
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chunk._stream->read(_palette, chunk._size);
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}
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break;
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case ID_CRNG:
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if (_crng) {
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PaletteFxRange *ptr = &_crng[_numCRNG];
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chunk._stream->read((byte*)ptr, chunk._size);
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ptr->_timer = FROM_BE_16(ptr->_timer);
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ptr->_step = FROM_BE_16(ptr->_step);
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ptr->_flags = FROM_BE_16(ptr->_flags);
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++_numCRNG;
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}
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break;
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case ID_BODY:
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setupBuffer(_decoder._header.width, _decoder._header.height);
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assert(_intBuffer);
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_decoder.loadBitmap(_mode, _intBuffer, chunk._stream);
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return true; // stop the parser
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}
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return false;
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}
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void ILBMLoader::load(Common::ReadStream *in, bool disposeStream) {
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Common::IFFParser parser(in, disposeStream);
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Common::Functor1Mem< Common::IFFChunk&, bool, ILBMLoader > c(this, &ILBMLoader::callback);
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parser.parse(c);
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}
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ILBMLoader::ILBMLoader(uint32 bodyMode, byte *palette, PaletteFxRange *crng) {
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_bodyMode = bodyMode;
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_surf = 0;
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_maskBuffer = 0;
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_pathBuffer = 0;
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_palette = palette;
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_crng = crng;
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_numCRNG = 0;
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}
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ILBMLoader::ILBMLoader(Graphics::Surface *surf, byte *palette, PaletteFxRange *crng) {
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_bodyMode = ILBMLoader::BODYMODE_SURFACE;
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_surf = surf;
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_palette = palette;
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_crng = crng;
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_numCRNG = 0;
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}
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ILBMLoader::ILBMLoader(MaskBuffer *buffer) {
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_bodyMode = ILBMLoader::BODYMODE_MASKBUFFER;
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_maskBuffer = buffer;
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_palette = 0;
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_crng = 0;
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_numCRNG = 0;
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}
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ILBMLoader::ILBMLoader(PathBuffer *buffer) {
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_bodyMode = ILBMLoader::BODYMODE_PATHBUFFER;
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_pathBuffer = buffer;
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_palette = 0;
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_crng = 0;
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_numCRNG = 0;
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}
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}
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