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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.
*
*/
#include "mohawk/resource.h"
#include "mohawk/livingbooks.h"
#include "mohawk/livingbooks_graphics.h"
#include "common/substream.h"
#include "common/system.h"
#include "engines/util.h"
#include "graphics/palette.h"
namespace Mohawk {
LBGraphics::LBGraphics(MohawkEngine_LivingBooks *vm, uint16 width, uint16 height) : GraphicsManager(), _vm(vm) {
_bmpDecoder = _vm->isPreMohawk() ? new LivingBooksBitmap_v1() : new MohawkBitmap();
initGraphics(width, height, true);
}
LBGraphics::~LBGraphics() {
delete _bmpDecoder;
}
MohawkSurface *LBGraphics::decodeImage(uint16 id) {
if (_vm->isPreMohawk())
return _bmpDecoder->decodeImage(_vm->wrapStreamEndian(ID_BMAP, id));
return _bmpDecoder->decodeImage(_vm->getResource(ID_TBMP, id));
}
void LBGraphics::copyOffsetAnimImageToScreen(uint16 image, int left, int top) {
MohawkSurface *mhkSurface = findImage(image);
left -= mhkSurface->getOffsetX();
top -= mhkSurface->getOffsetY();
GraphicsManager::copyAnimImageToScreen(image, left, top);
}
bool LBGraphics::imageIsTransparentAt(uint16 image, bool useOffsets, int x, int y) {
MohawkSurface *mhkSurface = findImage(image);
if (useOffsets) {
x += mhkSurface->getOffsetX();
y += mhkSurface->getOffsetY();
}
if (x < 0 || y < 0)
return true;
Graphics::Surface *surface = mhkSurface->getSurface();
if (x >= surface->w || y >= surface->h)
return true;
return *(byte *)surface->getBasePtr(x, y) == 0;
}
void LBGraphics::setPalette(uint16 id) {
// Old Living Books games use the old CTBL-style palette format while newer
// games use the better tPAL format which can store partial palettes.
if (_vm->isPreMohawk()) {
Common::SeekableSubReadStreamEndian *ctblStream = _vm->wrapStreamEndian(ID_CTBL, id);
uint16 colorCount = ctblStream->readUint16();
byte *palette = new byte[colorCount * 3];
for (uint16 i = 0; i < colorCount; i++) {
palette[i * 3 + 0] = ctblStream->readByte();
palette[i * 3 + 1] = ctblStream->readByte();
palette[i * 3 + 2] = ctblStream->readByte();
ctblStream->readByte();
}
delete ctblStream;
_vm->_system->getPaletteManager()->setPalette(palette, 0, colorCount);
delete[] palette;
} else {
GraphicsManager::setPalette(id);
}
}
} // End of namespace Mohawk
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