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engines/wintermute/base/gfx/base_image.cpp
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296
engines/wintermute/base/gfx/base_image.cpp
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/* 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 modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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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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*
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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, see <http://www.gnu.org/licenses/>.
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*
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*/
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/*
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* This file is based on WME Lite.
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* http://dead-code.org/redir.php?target=wmelite
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* Copyright (c) 2011 Jan Nedoma
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*/
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#include "engines/wintermute/base/gfx/base_image.h"
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#include "engines/wintermute/base/gfx/base_renderer.h"
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#include "engines/wintermute/base/base_engine.h"
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#include "engines/wintermute/base/base_file_manager.h"
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#include "engines/wintermute/base/file/base_savefile_manager_file.h"
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#include "graphics/surface.h"
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#include "image/png.h"
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#include "image/jpeg.h"
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#include "image/bmp.h"
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#include "image/tga.h"
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#include "common/textconsole.h"
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#include "common/stream.h"
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#include "common/system.h"
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namespace Wintermute {
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//////////////////////////////////////////////////////////////////////
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BaseImage::BaseImage() {
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_fileManager = BaseFileManager::getEngineInstance();
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_palette = nullptr;
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_paletteCount = 0;
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_surface = nullptr;
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_decoder = nullptr;
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_deletableSurface = nullptr;
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}
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//////////////////////////////////////////////////////////////////////
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BaseImage::~BaseImage() {
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delete _decoder;
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if (_deletableSurface) {
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_deletableSurface->free();
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}
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delete _deletableSurface;
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}
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bool BaseImage::getImageInfo(const Common::String &filename, int32 &width, int32 &height) {
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bool ret = false;
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Common::String file = filename;
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file.toLowercase();
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if (file.hasPrefix("savegame:") || file.hasSuffix(".bmp")) {
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ret = getImageInfoBMP(filename, width, height);
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} else if (file.hasSuffix(".tga")) {
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ret = getImageInfoTGA(filename, width, height);
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} else if (file.hasSuffix(".png")) {
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ret = getImageInfoPNG(filename, width, height);
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} else if (file.hasSuffix(".jpg")) {
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ret = getImageInfoJPG(filename, width, height);
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} else {
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warning("BaseImage::loadFile : Unsupported fileformat %s", filename.c_str());
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}
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return ret;
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}
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bool BaseImage::getImageInfoBMP(const Common::String &filename, int32 &width, int32 &height) {
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Common::SeekableReadStream *stream = _fileManager->openFile(filename);
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if (!stream) {
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return false;
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}
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uint16 fileType = stream->readUint16BE();
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if (fileType != MKTAG16('B', 'M')) {
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_fileManager->closeFile(stream);
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return false;
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}
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stream->skip(16);
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width = stream->readSint32LE();
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height = stream->readSint32LE();
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_fileManager->closeFile(stream);
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return true;
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}
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bool BaseImage::getImageInfoTGA(const Common::String &filename, int32 &width, int32 &height) {
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Common::SeekableReadStream *stream = _fileManager->openFile(filename);
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if (!stream) {
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return false;
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}
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stream->skip(12);
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width = stream->readSint16LE();
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height = stream->readSint16LE();
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_fileManager->closeFile(stream);
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return true;
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}
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bool BaseImage::getImageInfoPNG(const Common::String &filename, int32 &width, int32 &height) {
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Common::SeekableReadStream *stream = _fileManager->openFile(filename);
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if (!stream) {
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return false;
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}
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if (stream->readUint32BE() != MKTAG(0x89, 'P', 'N', 'G')) {
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_fileManager->closeFile(stream);
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return false;
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}
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stream->skip(4);
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uint32 headerLen = stream->readUint32BE();
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uint32 headerType = stream->readUint32BE();
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if (headerType != MKTAG('I', 'H', 'D', 'R') || headerLen != 13) {
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_fileManager->closeFile(stream);
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return false;
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}
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width = stream->readSint32BE();
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height = stream->readSint32BE();
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_fileManager->closeFile(stream);
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return true;
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}
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bool BaseImage::getImageInfoJPG(const Common::String &filename, int32 &width, int32 &height) {
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Common::SeekableReadStream *stream = _fileManager->openFile(filename);
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if (!stream) {
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return false;
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}
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uint16 fileType = stream->readSint16BE();
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if (fileType != 0xFFD8) {
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_fileManager->closeFile(stream);
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return false;
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}
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while (1) {
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byte markerPrefix = stream->readByte();
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if (stream->eos() || stream->err()) {
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break;
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}
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if (markerPrefix != 0xff) {
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continue;
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}
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byte marker = stream->readByte();
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while (marker == 0xff) {
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marker = stream->readByte();
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if (stream->eos() || stream->err()) {
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_fileManager->closeFile(stream);
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return false;
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}
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}
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if (marker == 0xd9 || marker == 0xda) {
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break;
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}
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uint16 segLength = stream->readUint16BE();
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if (segLength < 2) {
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break;
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}
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if ((marker >= 0xc0 && marker <= 0xc3) ||
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(marker >= 0xc9 && marker <= 0xcb)) {
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stream->skip(1);
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height = stream->readUint16BE();
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width = stream->readUint16BE();
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_fileManager->closeFile(stream);
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return true;
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} else {
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stream->skip(segLength - 2);
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if (stream->eos() || stream->err()) {
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break;
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}
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}
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}
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_fileManager->closeFile(stream);
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return false;
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}
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bool BaseImage::loadFile(const Common::String &filename) {
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_filename = filename;
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_filename.toLowercase();
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if (filename.hasPrefix("savegame:") || _filename.hasSuffix(".bmp")) {
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_decoder = new Image::BitmapDecoder();
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} else if (_filename.hasSuffix(".png")) {
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if (BaseEngine::instance().getGameId() == "satanandsons" &&
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_filename.hasSuffix("\\plein\\kaars.1.png")) {
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debug(2, "BaseImage::loadFile : Buggy PNG bitmap %s, skipping...", filename.c_str());
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return false;
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}
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_decoder = new Image::PNGDecoder();
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} else if (_filename.hasSuffix(".tga")) {
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_decoder = new Image::TGADecoder();
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} else if (_filename.hasSuffix(".jpg")) {
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Image::JPEGDecoder *jpeg = new Image::JPEGDecoder();
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jpeg->setOutputPixelFormat(BaseEngine::getRenderer()->getPixelFormat());
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_decoder = jpeg;
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} else {
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warning("BaseImage::loadFile : Unsupported fileformat %s", filename.c_str());
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}
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_filename = filename;
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Common::SeekableReadStream *file = _fileManager->openFile(filename);
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if (!file) {
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return false;
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}
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_decoder->loadStream(*file);
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_surface = _decoder->getSurface();
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_palette = _decoder->getPalette().data();
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_paletteCount = _decoder->getPalette().size();
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_fileManager->closeFile(file);
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return true;
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}
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//////////////////////////////////////////////////////////////////////////
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bool BaseImage::saveBMPFile(const char *filename) const {
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Common::WriteStream *stream = openSfmFileForWrite(filename);
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if (stream) {
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bool ret = writeBMPToStream(stream);
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delete stream;
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return ret;
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}
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return false;
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}
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//////////////////////////////////////////////////////////////////////////
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bool BaseImage::writeBMPToStream(Common::WriteStream *stream) const {
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if (!stream || !_surface) {
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return false;
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}
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return Image::writeBMP(*stream, *_surface, _palette);
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}
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//////////////////////////////////////////////////////////////////////////
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void BaseImage::copyFrom(const Graphics::Surface *surface, int newWidth, int newHeight, byte flip) {
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if (newWidth == 0)
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newWidth = surface->w;
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if (newHeight == 0)
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newHeight = surface->h;
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Graphics::Surface *temp;
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if (newWidth == surface->w && newHeight == surface->h && flip == 0) {
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temp = new Graphics::Surface();
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temp->copyFrom(*surface);
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} else {
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temp = surface->scale((uint16)newWidth, (uint16)newHeight, true, flip);
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}
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if (_deletableSurface) {
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_deletableSurface->free();
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delete _deletableSurface;
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_deletableSurface = nullptr;
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}
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_surface = _deletableSurface = temp;
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}
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} // End of namespace Wintermute
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