mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-20 00:41:12 +00:00
334 lines
8.2 KiB
C++
334 lines
8.2 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 "common/endian.h"
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#include "made/resource.h"
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#include "made/graphics.h"
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#include "made/sound.h"
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namespace Made {
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/* Resource */
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Resource::~Resource() {
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}
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/* PictureResource */
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PictureResource::PictureResource() : _picture(NULL), _palette(NULL) {
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}
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PictureResource::~PictureResource() {
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if (_picture)
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delete _picture;
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if (_palette)
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delete[] _palette;
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}
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void PictureResource::load(byte *source, int size) {
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Common::MemoryReadStream *sourceS = new Common::MemoryReadStream(source, size);
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bool hasPalette = sourceS->readByte() == 1;
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sourceS->readByte();
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sourceS->readByte();
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sourceS->readByte();
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uint16 cmdOffs = sourceS->readUint16LE();
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uint16 pixelOffs = sourceS->readUint16LE();
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uint16 maskOffs = sourceS->readUint16LE();
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uint16 lineSize = sourceS->readUint16LE();
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/*uint16 u = */sourceS->readUint16LE();
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uint16 width = sourceS->readUint16LE();
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uint16 height = sourceS->readUint16LE();
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debug(2, "width = %d; height = %d\n", width, height);
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if (hasPalette) {
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_palette = new byte[768];
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sourceS->read(_palette, 768);
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}
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_picture = new Graphics::Surface();
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_picture->create(width, height, 1);
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decompressImage(source, *_picture, cmdOffs, pixelOffs, maskOffs, lineSize);
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delete sourceS;
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}
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/* AnimationResource */
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AnimationResource::AnimationResource() {
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}
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AnimationResource::~AnimationResource() {
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// TODO: Free anim frames
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}
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void AnimationResource::load(byte *source, int size) {
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Common::MemoryReadStream *sourceS = new Common::MemoryReadStream(source, size);
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sourceS->readUint32LE();
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sourceS->readUint32LE();
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sourceS->readUint16LE();
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_flags = sourceS->readUint16LE();
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_width = sourceS->readUint16LE();
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_height = sourceS->readUint16LE();
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sourceS->readUint32LE();
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uint16 frameCount = sourceS->readUint16LE();
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sourceS->readUint16LE();
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sourceS->readUint16LE();
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for (uint16 i = 0; i < frameCount; i++) {
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sourceS->seek(26 + i * 4);
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uint32 frameOffs = sourceS->readUint32LE();
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sourceS->seek(frameOffs);
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sourceS->readUint32LE();
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sourceS->readUint32LE();
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uint16 frameWidth = sourceS->readUint16LE();
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uint16 frameHeight = sourceS->readUint16LE();
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uint16 cmdOffs = sourceS->readUint16LE();
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sourceS->readUint16LE();
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uint16 pixelOffs = sourceS->readUint16LE();
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sourceS->readUint16LE();
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uint16 maskOffs = sourceS->readUint16LE();
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sourceS->readUint16LE();
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uint16 lineSize = sourceS->readUint16LE();
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Graphics::Surface *frame = new Graphics::Surface();
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frame->create(frameWidth, frameHeight, 1);
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decompressImage(source + frameOffs, *frame, cmdOffs, pixelOffs, maskOffs, lineSize, _flags & 1);
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_frames.push_back(frame);
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}
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delete sourceS;
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}
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/* SoundResource */
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SoundResource::SoundResource() : _soundSize(0), _soundData(NULL) {
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}
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SoundResource::~SoundResource() {
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if (_soundData)
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delete[] _soundData;
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}
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void SoundResource::load(byte *source, int size) {
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uint16 chunkCount = READ_LE_UINT16(source + 8);
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uint16 chunkSize = READ_LE_UINT16(source + 12);
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_soundSize = chunkCount * chunkSize;
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_soundData = new byte[_soundSize];
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decompressSound(source + 14, _soundData, chunkSize, chunkCount);
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}
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Audio::AudioStream *SoundResource::getAudioStream() {
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return Audio::makeLinearInputStream(_soundData, _soundSize, 22050, 0, 0, 0);
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}
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/* MenuResource */
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MenuResource::MenuResource() {
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}
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MenuResource::~MenuResource() {
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}
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void MenuResource::load(byte *source, int size) {
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_strings.clear();
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Common::MemoryReadStream *sourceS = new Common::MemoryReadStream(source, size);
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sourceS->skip(4); // skip "MENU"
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uint16 count = sourceS->readUint16LE();
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for (uint16 i = 0; i < count; i++) {
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uint16 offs = sourceS->readUint16LE();
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const char *string = (const char*)(source + offs);
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_strings.push_back(string);
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debug(2, "%02d: %s\n", i, string);
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}
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fflush(stdout);
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delete sourceS;
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}
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/* ProjectReader */
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ProjectReader::ProjectReader() {
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}
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ProjectReader::~ProjectReader() {
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}
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void ProjectReader::open(const char *filename) {
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_fd = new Common::File();
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_fd->open(filename);
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_fd->skip(0x18); // skip header for now
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uint16 indexCount = _fd->readUint16LE();
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for (uint16 i = 0; i < indexCount; i++) {
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uint32 resType = _fd->readUint32BE();
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uint32 indexOffs = _fd->readUint32LE();
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_fd->readUint32LE();
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_fd->readUint32LE();
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_fd->readUint32LE();
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_fd->readUint16LE();
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_fd->readUint16LE();
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// We don't need ARCH, FREE and OMNI resources
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if (resType == kResARCH || resType == kResFREE || resType == kResOMNI)
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continue;
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//debug(2, "resType = %08X; indexOffs = %d\n", resType, indexOffs);
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uint32 oldOffs = _fd->pos();
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ResourceSlots *resSlots = new ResourceSlots();
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_fd->seek(indexOffs);
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loadIndex(resSlots);
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_resSlots[resType] = resSlots;
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_fd->seek(oldOffs);
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}
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_cacheCount = 0;
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}
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PictureResource *ProjectReader::getPicture(int index) {
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return createResource<PictureResource>(kResFLEX, index);
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}
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AnimationResource *ProjectReader::getAnimation(int index) {
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return createResource<AnimationResource>(kResANIM, index);
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}
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SoundResource *ProjectReader::getSound(int index) {
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return createResource<SoundResource>(kResSNDS, index);
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}
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MenuResource *ProjectReader::getMenu(int index) {
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return createResource<MenuResource>(kResMENU, index);
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}
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void ProjectReader::loadIndex(ResourceSlots *slots) {
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_fd->readUint32LE(); // skip INDX
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_fd->readUint32LE(); // skip index size
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_fd->readUint32LE(); // skip unknown
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_fd->readUint32LE(); // skip res type
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uint16 count = _fd->readUint16LE();
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_fd->readUint16LE(); // skip unknown count
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_fd->readUint16LE(); // skip unknown count
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for (uint16 i = 0; i < count; i++) {
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uint32 offs = _fd->readUint32LE();
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uint32 size = _fd->readUint32LE();
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slots->push_back(ResourceSlot(offs, size));
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}
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}
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void ProjectReader::freeResource(Resource *resource) {
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tossResourceFromCache(resource->slot);
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}
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bool ProjectReader::loadResource(ResourceSlot *slot, byte *&buffer, uint32 &size) {
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if (slot && slot->size > 0) {
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size = slot->size - 62;
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buffer = new byte[size];
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debug(2, "ProjectReader::loadResource() %08X\n", slot->offs + 62); fflush(stdout);
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_fd->seek(slot->offs + 62);
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_fd->read(buffer, size);
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return true;
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} else {
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return false;
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}
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}
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ResourceSlot *ProjectReader::getResourceSlot(uint32 resType, uint index) {
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ResourceSlots *slots = _resSlots[resType];
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if (index >= 1 && index < slots->size()) {
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ResourceSlot *slot = &slots->operator[](index);
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return slot;
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} else {
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return NULL;
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}
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}
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Resource *ProjectReader::getResourceFromCache(ResourceSlot *slot) {
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if (slot->res)
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slot->refCount++;
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return slot->res;
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}
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void ProjectReader::addResourceToCache(ResourceSlot *slot, Resource *res) {
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if (_cacheCount >= kMaxResourceCacheCount) {
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purgeCache();
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}
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slot->res = res;
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slot->refCount = 0;
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_cacheCount++;
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}
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void ProjectReader::tossResourceFromCache(ResourceSlot *slot) {
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if (slot->res) {
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slot->refCount--;
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}
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}
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void ProjectReader::purgeCache() {
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printf("ProjectReader::purgeCache()\n");
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for (ResMap::const_iterator resTypeIter = _resSlots.begin(); resTypeIter != _resSlots.end(); ++resTypeIter) {
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ResourceSlots *slots = (*resTypeIter)._value;
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for (ResourceSlots::iterator slotIter = slots->begin(); slotIter != slots->end(); ++slotIter) {
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ResourceSlot *slot = &(*slotIter);
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if (slot->refCount <= 0 && slot->res) {
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delete slot->res;
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slot->res = NULL;
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slot->refCount = 0;
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_cacheCount--;
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}
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}
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}
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}
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} // End of namespace Made
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