141 lines
3.9 KiB
C++
141 lines
3.9 KiB
C++
/* Residual - A 3D game interpreter
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*
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* Residual 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 library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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* This library 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 GNU
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* Lesser General Public License for more details.
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; 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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*/
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#include "common/endian.h"
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#include "engines/grim/debug.h"
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#include "engines/grim/material.h"
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#include "engines/grim/gfx_base.h"
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#include "engines/grim/colormap.h"
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#include "engines/grim/resource.h"
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namespace Grim {
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Common::List<MaterialData *> *MaterialData::_materials = NULL;
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MaterialData::MaterialData(const Common::String &filename, const char *data, int len, CMap *cmap) :
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_fname(filename), _cmap(cmap), _refCount(1) {
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if (len < 4 || memcmp(data, "MAT ", 4) != 0)
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error("invalid magic loading texture");
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_numImages = READ_LE_UINT32(data + 12);
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/* Discovered by diffing orange.mat with pink.mat and blue.mat .
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* Actual meaning unknown, so I prefer to use it as an enum-ish
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* at the moment, to detect unexpected values.
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*/
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uint32 offset = READ_LE_UINT32(data + 0x4c);
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if (offset == 0x8)
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data += 16;
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else if (offset != 0)
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error("Unknown offset: %d", offset);
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_width = READ_LE_UINT32(data + 60 + _numImages * 40);
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_height = READ_LE_UINT32(data + 64 + _numImages * 40);
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if (_width == 0 || _height == 0) {
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if (gDebugLevel == DEBUG_WARN || gDebugLevel == DEBUG_ALL)
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warning("skip load texture: bad texture size (%dx%d) for texture %s", _width, _height, _fname.c_str());
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return;
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}
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data += 84 + _numImages * 40;
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g_driver->createMaterial(this, data, cmap);
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}
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MaterialData::~MaterialData() {
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_materials->remove(this);
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if (_materials->empty()) {
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delete _materials;
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_materials = NULL;
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}
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if (_width && _height)
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g_driver->destroyMaterial(this);
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}
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MaterialData *MaterialData::getMaterialData(const Common::String &filename, const char *data, int len, CMap *cmap) {
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if (!_materials) {
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_materials = new Common::List<MaterialData *>();
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}
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for (Common::List<MaterialData *>::iterator i = _materials->begin(); i != _materials->end(); ++i) {
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MaterialData *m = *i;
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if (m->_fname == filename && m->_cmap->getFilename() == cmap->getFilename()) {
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++m->_refCount;
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return m;
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}
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}
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MaterialData *m = new MaterialData(filename, data, len, cmap);
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_materials->push_back(m);
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return m;
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}
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Material::Material(const Common::String &filename, const char *data, int len, CMap *cmap) :
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Object(), _currImage(0) {
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_data = MaterialData::getMaterialData(filename, data, len, cmap);
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}
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void Material::reload(CMap *cmap) {
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Common::String fname = _data->_fname;
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--_data->_refCount;
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if (_data->_refCount < 1) {
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delete _data;
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}
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Material *m = g_resourceloader->loadMaterial(fname, cmap);
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// Steal the data from the new material and discard it.
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_data = m->_data;
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++_data->_refCount;
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delete m;
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}
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void Material::select() const {
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if (_data->_width && _data->_height)
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g_driver->selectMaterial(this);
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}
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Material::~Material() {
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--_data->_refCount;
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if (_data->_refCount < 1) {
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delete _data;
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}
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}
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int Material::getNumImages() const {
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return _data->_numImages;
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}
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int Material::getCurrentImage() const {
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return _currImage;
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}
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const Common::String &Material::getFilename() const {
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return _data->_fname;
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}
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MaterialData *Material::getData() const {
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return _data;
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}
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} // end of namespace Grim
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