mirror of
https://github.com/libretro/scummvm.git
synced 2024-12-14 21:59:17 +00:00
af4c6c5f5b
svn-id: r44459
575 lines
15 KiB
C++
575 lines
15 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 "sound/mixer.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), _picturePalette(NULL) {
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_hasPalette = false;
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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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_picture = 0;
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}
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if (_picturePalette) {
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delete[] _picturePalette;
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_picturePalette = 0;
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}
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}
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void PictureResource::load(byte *source, int size) {
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if (READ_BE_UINT32(source) == MKID_BE('Flex')) {
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loadChunked(source, size);
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} else {
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loadRaw(source, size);
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}
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}
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void PictureResource::loadRaw(byte *source, int size) {
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// Loads a "raw" picture as used in RtZ, LGoP2, Manhole:N&E and Rodney's Funscreen
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Common::MemoryReadStream *sourceS = new Common::MemoryReadStream(source, size);
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_hasPalette = (sourceS->readByte() != 0);
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byte cmdFlags = sourceS->readByte();
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byte pixelFlags = sourceS->readByte();
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byte maskFlags = 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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if (cmdFlags || pixelFlags || maskFlags) {
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warning("PictureResource::loadRaw() Graphic has flags set (%d, %d, %d)", cmdFlags, pixelFlags, maskFlags);
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}
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_paletteColorCount = (cmdOffs - 18) / 3; // 18 = sizeof header
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debug(2, "width = %d; height = %d\n", width, height);
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if (_hasPalette) {
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_picturePalette = new byte[_paletteColorCount * 3];
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sourceS->read(_picturePalette, _paletteColorCount * 3);
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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, cmdFlags, pixelFlags, maskFlags);
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delete sourceS;
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}
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void PictureResource::loadChunked(byte *source, int size) {
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// Loads a "chunked" picture as used in Manhole EGA
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Common::MemoryReadStream *sourceS = new Common::MemoryReadStream(source, size);
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byte cmdFlags = 0, pixelFlags = 0, maskFlags = 0;
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uint16 cmdOffs = 0, pixelOffs = 0, maskOffs = 0;
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uint16 lineSize = 0, width = 0, height = 0;
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sourceS->skip(36); // skip the "Flex" header
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_hasPalette = false;
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while (!sourceS->eos()) {
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uint32 chunkType = sourceS->readUint32BE();
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uint32 chunkSize = sourceS->readUint32BE();
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if (sourceS->eos())
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break;
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debug(0, "chunkType = %08X; chunkSize = %d", chunkType, chunkSize);
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if (chunkType == MKID_BE('Rect')) {
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debug(0, "Rect");
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sourceS->skip(4);
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height = sourceS->readUint16BE();
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width = sourceS->readUint16BE();
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debug(0, "width = %d; height = %d", width, height);
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} else if (chunkType == MKID_BE('fMap')) {
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debug(0, "fMap");
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lineSize = sourceS->readUint16BE();
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sourceS->skip(11);
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cmdFlags = sourceS->readByte();
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cmdOffs = sourceS->pos();
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sourceS->skip(chunkSize - 14);
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debug(0, "lineSize = %d; cmdFlags = %d; cmdOffs = %04X", lineSize, cmdFlags, cmdOffs);
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} else if (chunkType == MKID_BE('fLCo')) {
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debug(0, "fLCo");
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sourceS->skip(9);
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pixelFlags = sourceS->readByte();
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pixelOffs = sourceS->pos();
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sourceS->skip(chunkSize - 10);
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debug(0, "pixelFlags = %d; pixelOffs = %04X", pixelFlags, pixelOffs);
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} else if (chunkType == MKID_BE('fPix')) {
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debug(0, "fPix");
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sourceS->skip(9);
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maskFlags = sourceS->readByte();
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maskOffs = sourceS->pos();
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sourceS->skip(chunkSize - 10);
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debug(0, "maskFlags = %d; maskOffs = %04X", maskFlags, maskOffs);
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} else if (chunkType == MKID_BE('fGCo')) {
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debug(0, "fGCo");
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_hasPalette = true;
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_paletteColorCount = chunkSize / 3;
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_picturePalette = new byte[_paletteColorCount * 3];
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sourceS->read(_picturePalette, _paletteColorCount * 3);
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} else {
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error("PictureResource::loadChunked() Invalid chunk %08X at %08X", chunkType, sourceS->pos());
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}
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}
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if (!cmdOffs || !pixelOffs /*|| !maskOffs*/ || !lineSize || !width || !height) {
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error("PictureResource::loadChunked() Error parsing the picture data, one or more chunks/parameters are missing");
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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, cmdFlags, pixelFlags, maskFlags);
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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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for (uint i = 0; i < _frames.size(); i++)
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delete _frames[i];
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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, 0, 0, 0, _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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delete[] _soundData;
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delete _soundEnergyArray;
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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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_soundEnergyArray = new SoundEnergyArray;
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decompressSound(source + 14, _soundData, chunkSize, chunkCount, _soundEnergyArray);
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}
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Audio::AudioStream *SoundResource::getAudioStream(int soundRate, bool loop) {
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byte flags = Audio::Mixer::FLAG_UNSIGNED;
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if (loop)
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flags |= Audio::Mixer::FLAG_LOOP;
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return Audio::makeLinearInputStream(_soundData, _soundSize, soundRate, flags, 0, 0);
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}
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void SoundResourceV1::load(byte *source, int size) {
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_soundSize = size * 4;
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_soundData = new byte[_soundSize];
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ManholeEgaSoundDecompressor dec;
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dec.decompress(source, _soundData, size);
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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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const char *MenuResource::getString(uint index) const {
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if (index < _strings.size())
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return _strings[index].c_str();
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else
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return NULL;
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}
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/* FontResource */
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FontResource::FontResource() : _data(NULL), _size(0) {
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}
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FontResource::~FontResource() {
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if (_data)
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delete[] _data;
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}
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void FontResource::load(byte *source, int size) {
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_data = new byte[size];
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_size = size;
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memcpy(_data, source, size);
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}
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int FontResource::getHeight() const {
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return _data[0];
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}
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int FontResource::getCharWidth(uint c) const {
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byte *charData = getCharData(c);
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if (charData)
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return charData[0];
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else
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return 0;
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}
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byte *FontResource::getChar(uint c) const {
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byte *charData = getCharData(c);
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if (charData)
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return charData + 1;
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else
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return NULL;
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}
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int FontResource::getTextWidth(const char *text) {
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int width = 0;
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if (text) {
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int len = strlen(text);
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for (int pos = 0; pos < len; pos++)
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width += getCharWidth(text[pos]);
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}
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return width;
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}
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byte *FontResource::getCharData(uint c) const {
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if (c < 28 || c > 255)
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return NULL;
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return _data + 1 + (c - 28) * (getHeight() + 1);
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}
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/* GenericResource */
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GenericResource::GenericResource() : _data(NULL), _size(0) {
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}
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GenericResource::~GenericResource() {
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if (_data)
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delete[] _data;
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}
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void GenericResource::load(byte *source, int size) {
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_data = new byte[size];
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_size = size;
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memcpy(_data, source, size);
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}
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/* ResourceReader */
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ResourceReader::ResourceReader() {
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_isV1 = false;
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}
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ResourceReader::~ResourceReader() {
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if (!_isV1) {
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delete _fd;
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} else {
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delete _fdPics;
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delete _fdSounds;
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delete _fdMusic;
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}
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}
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// V2
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void ResourceReader::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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// V1
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void ResourceReader::openResourceBlocks() {
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_isV1 = true;
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_fdPics = new Common::File();
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_fdSounds = new Common::File();
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_fdMusic = new Common::File();
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openResourceBlock("pics.blk", _fdPics, kResFLEX);
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openResourceBlock("snds.blk", _fdSounds, kResSNDS);
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openResourceBlock("music.blk", _fdMusic, kResMIDI);
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}
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void ResourceReader::openResourceBlock(const char *filename, Common::File *blockFile, uint32 resType) {
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blockFile->open(filename);
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blockFile->readUint16LE(); // Skip unused
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uint16 count = blockFile->readUint16LE();
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blockFile->readUint16LE(); // Skip unused
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uint32 type = blockFile->readUint32BE();
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if (type != kResFLEX)
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warning("openResourceBlocks: resource header is not 'FLEX'");
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_resSlots[resType] = new ResourceSlots();
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// Add dummy entry since the resources are 1-based
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_resSlots[resType]->push_back(ResourceSlot(0, 0));
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for (uint16 i = 0; i < count; i++) {
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uint32 offset = blockFile->readUint32LE();
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blockFile->readUint32LE();
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uint32 size = blockFile->readUint32LE();
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_resSlots[resType]->push_back(ResourceSlot(offset, size));
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}
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}
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PictureResource *ResourceReader::getPicture(int index) {
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return createResource<PictureResource>(kResFLEX, index);
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}
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AnimationResource *ResourceReader::getAnimation(int index) {
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return createResource<AnimationResource>(kResANIM, index);
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}
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SoundResource *ResourceReader::getSound(int index) {
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if (!_isV1)
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return createResource<SoundResource>(kResSNDS, index);
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else
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return createResource<SoundResourceV1>(kResSNDS, index);
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}
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MenuResource *ResourceReader::getMenu(int index) {
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return createResource<MenuResource>(kResMENU, index);
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}
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FontResource *ResourceReader::getFont(int index) {
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return createResource<FontResource>(kResFONT, index);
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}
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GenericResource *ResourceReader::getXmidi(int index) {
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return createResource<GenericResource>(kResXMID, index);
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}
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GenericResource *ResourceReader::getMidi(int index) {
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return createResource<GenericResource>(kResMIDI, index);
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}
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void ResourceReader::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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_fd->readUint16LE(); // skip unknown count
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uint16 count = _fd->readUint16LE();
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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 ResourceReader::freeResource(Resource *resource) {
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tossResourceFromCache(resource->_slot);
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}
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bool ResourceReader::loadResource(ResourceSlot *slot, byte *&buffer, uint32 &size) {
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int offset = !_isV1 ? 62 : 0;
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if (slot && slot->size > 0) {
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size = slot->size - offset;
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buffer = new byte[size];
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debug(2, "ResourceReader::loadResource() %08X", slot->offs + offset);
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_fd->seek(slot->offs + offset);
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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 *ResourceReader::getResourceSlot(uint32 resType, uint index) {
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ResourceSlots *slots = _resSlots[resType];
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if (!slots)
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return NULL;
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if (index >= 1 && index < slots->size()) {
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return &(*slots)[index];
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} else {
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return NULL;
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}
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}
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|
Resource *ResourceReader::getResourceFromCache(ResourceSlot *slot) {
|
|
if (slot->res)
|
|
slot->refCount++;
|
|
return slot->res;
|
|
}
|
|
|
|
void ResourceReader::addResourceToCache(ResourceSlot *slot, Resource *res) {
|
|
if (_cacheCount >= kMaxResourceCacheCount)
|
|
purgeCache();
|
|
slot->res = res;
|
|
slot->refCount = 1;
|
|
_cacheCount++;
|
|
}
|
|
|
|
void ResourceReader::tossResourceFromCache(ResourceSlot *slot) {
|
|
if (slot->res)
|
|
slot->refCount--;
|
|
}
|
|
|
|
void ResourceReader::purgeCache() {
|
|
debug(2, "ResourceReader::purgeCache()");
|
|
for (ResMap::const_iterator resTypeIter = _resSlots.begin(); resTypeIter != _resSlots.end(); ++resTypeIter) {
|
|
ResourceSlots *slots = (*resTypeIter)._value;
|
|
for (ResourceSlots::iterator slotIter = slots->begin(); slotIter != slots->end(); ++slotIter) {
|
|
ResourceSlot *slot = &(*slotIter);
|
|
if (slot->refCount <= 0 && slot->res) {
|
|
delete slot->res;
|
|
slot->res = NULL;
|
|
slot->refCount = 0;
|
|
_cacheCount--;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
} // End of namespace Made
|