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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.
*
*/
/*
* This file is based on WME Lite.
* http://dead-code.org/redir.php?target=wmelite
* Copyright (c) 2011 Jan Nedoma
*/
#include "engines/wintermute/base/gfx/base_image.h"
#include "engines/wintermute/base/base_file_manager.h"
#include "engines/wintermute/graphics/transparent_surface.h"
#include "graphics/decoders/png.h"
#include "graphics/decoders/jpeg.h"
#include "graphics/decoders/bmp.h"
#include "graphics/decoders/tga.h"
#include "graphics/surface.h"
#include "common/textconsole.h"
#include "common/stream.h"
#include "common/system.h"
namespace Wintermute {
//////////////////////////////////////////////////////////////////////
BaseImage::BaseImage() {
_fileManager = BaseFileManager::getEngineInstance();
_palette = NULL;
_surface = NULL;
_decoder = NULL;
_deletableSurface = NULL;
}
//////////////////////////////////////////////////////////////////////
BaseImage::~BaseImage() {
delete _decoder;
if (_deletableSurface) {
_deletableSurface->free();
}
delete _deletableSurface;
}
bool BaseImage::loadFile(const Common::String &filename) {
_filename = filename;
_filename.toLowercase();
if (filename.hasPrefix("savegame:")) {
_decoder = new Graphics::BitmapDecoder();
} else if (_filename.hasSuffix(".png")) {
_decoder = new Graphics::PNGDecoder();
} else if (_filename.hasSuffix(".bmp")) {
_decoder = new Graphics::BitmapDecoder();
} else if (_filename.hasSuffix(".tga")) {
_decoder = new Graphics::TGADecoder();
} else if (_filename.hasSuffix(".jpg")) {
_decoder = new Graphics::JPEGDecoder();
} else {
error("BaseImage::loadFile : Unsupported fileformat %s", filename.c_str());
}
_filename = filename;
Common::SeekableReadStream *file = _fileManager->openFile(filename.c_str());
if (!file) {
return false;
}
_decoder->loadStream(*file);
_surface = _decoder->getSurface();
_palette = _decoder->getPalette();
_fileManager->closeFile(file);
return true;
}
byte BaseImage::getAlphaAt(int x, int y) const {
if (!_surface) {
return 0xFF;
}
uint32 color = *(const uint32 *)_surface->getBasePtr(x, y);
byte r, g, b, a;
_surface->format.colorToARGB(color, a, r, g, b);
return a;
}
void BaseImage::copyFrom(const Graphics::Surface *surface) {
_surface = _deletableSurface = new Graphics::Surface();
_deletableSurface->copyFrom(*surface);
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::saveBMPFile(const char *filename) const {
warning("BaseImage::saveBMPFile - stubbed"); // TODO
return false;
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::resize(int newWidth, int newHeight) {
// WME Lite used FILTER_BILINEAR with FreeImage_Rescale here.
TransparentSurface temp(*_surface, true);
if (_deletableSurface) {
_deletableSurface->free();
delete _deletableSurface;
_deletableSurface = NULL;
}
_surface = _deletableSurface = temp.scale((uint16)newWidth, (uint16)newHeight);
temp.free();
return true;
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::writeBMPToStream(Common::WriteStream *stream) const {
if (!_surface) {
return false;
}
/* The following is just copied over and inverted to write-ops from the BMP-decoder */
stream->writeByte('B');
stream->writeByte('M');
/* Since we don't care during reads, we don't care during writes: */
/* uint32 fileSize = */
stream->writeUint32LE(54 + _surface->h * _surface->pitch);
/* uint16 res1 = */
stream->writeUint16LE(0);
/* uint16 res2 = */
stream->writeUint16LE(0);
const uint32 imageOffset = 54;
stream->writeUint32LE(imageOffset);
const uint32 infoSize = 40; /* Windows v3 BMP */
stream->writeUint32LE(infoSize);
uint32 width = _surface->w;
int32 height = _surface->h;
stream->writeUint32LE(width);
stream->writeUint32LE((uint32)height);
if (width == 0 || height == 0) {
return false;
}
if (height < 0) {
warning("Right-side up bitmaps not supported");
return false;
}
/* uint16 planes = */ stream->writeUint16LE(1);
const uint16 bitsPerPixel = 24;
stream->writeUint16LE(bitsPerPixel);
const uint32 compression = 0;
stream->writeUint32LE(compression);
/* uint32 imageSize = */
stream->writeUint32LE(_surface->h * _surface->pitch);
/* uint32 pixelsPerMeterX = */
stream->writeUint32LE(0);
/* uint32 pixelsPerMeterY = */
stream->writeUint32LE(0);
const uint32 paletteColorCount = 0;
stream->writeUint32LE(paletteColorCount);
/* uint32 colorsImportant = */
stream->writeUint32LE(0);
// Start us at the beginning of the image (54 bytes in)
Graphics::PixelFormat format = Graphics::PixelFormat::createFormatCLUT8();
// BGRA for 24bpp
if (bitsPerPixel == 24) {
format = Graphics::PixelFormat(4, 8, 8, 8, 8, 8, 16, 24, 0);
}
Graphics::Surface *surface = _surface->convertTo(format);
int srcPitch = width * (bitsPerPixel >> 3);
const int extraDataLength = (srcPitch % 4) ? 4 - (srcPitch % 4) : 0;
for (int32 i = height - 1; i >= 0; i--) {
for (uint32 j = 0; j < width; j++) {
byte b, g, r;
uint32 color = *(uint32 *)surface->getBasePtr(j, i);
surface->format.colorToRGB(color, r, g, b);
stream->writeByte(b);
stream->writeByte(g);
stream->writeByte(r);
}
for (int k = 0; k < extraDataLength; k++) {
stream->writeByte(0);
}
}
surface->free();
delete surface;
return true;
}
//////////////////////////////////////////////////////////////////////////
bool BaseImage::copyFrom(BaseImage *origImage, int newWidth, int newHeight) {
// WME Lite used FILTER_BILINEAR with FreeImage_Rescale here.
TransparentSurface temp(*origImage->_surface, false);
if (_deletableSurface) {
_deletableSurface->free();
delete _deletableSurface;
_deletableSurface = NULL;
}
_surface = _deletableSurface = temp.scale((uint16)newWidth, (uint16)newHeight);
return true;
}
} // end of namespace Wintermute
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