scummvm/engine/material.cpp

66 lines
2.1 KiB
C++

/* Residual - Virtual machine to run LucasArts' 3D adventure games
*
* Residual is the legal property of its developers, whose names
* are too numerous to list here. Please refer to the AUTHORS
* file distributed with this source distribution.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
* This library 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
* Lesser General Public License for more details.
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*
* $URL$
* $Id$
*
*/
#include "common/sys.h"
#include "common/endian.h"
#include "common/debug.h"
#include "engine/material.h"
#include "engine/colormap.h"
#include "engine/backend/driver.h"
Material::Material(const char *filename, const char *data, int len, const CMap &cmap) :
Resource(filename), _cmap((CMap *) &cmap) {
if (len < 4 || memcmp(data, "MAT ", 4) != 0)
error("invalid magic loading texture\n");
_numImages = READ_LE_UINT32(data + 12);
_currImage = 0;
_width = READ_LE_UINT32(data + 76 + _numImages * 40);
_height = READ_LE_UINT32(data + 80 + _numImages * 40);
if ((_width == 0) || (_height == 0)) {
if (debugLevel == DEBUG_WARN || debugLevel == DEBUG_ALL)
warning("skip load texture: bad texture size (%dx%d) for texture %s\n", _width, _height, filename);
return;
}
data += 100 + _numImages * 40;
g_driver->createMaterial(this, data, &cmap);
}
void Material::select() const {
if ((_width == 0) || (_height == 0))
return;
g_driver->selectMaterial(this);
}
Material::~Material() {
if ((_width == 0) || (_height == 0))
return;
g_driver->destroyMaterial(this);
}