surface.cpp

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/* xoreos - A reimplementation of BioWare's Aurora engine
 *
 * xoreos is the legal property of its developers, whose names
 * can be found in the AUTHORS file distributed with this source
 * distribution.
 *
 * xoreos 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 3
 * of the License, or (at your option) any later version.
 *
 * xoreos 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 xoreos. If not, see <http://www.gnu.org/licenses/>.
 */

#include <cassert>
#include <cstring>

#include "src/graphics/images/surface.h"

namespace Graphics {

Surface::Surface(int width, int height) {
    assert((width > 0) && (height > 0));

    _compressed = false;
    _hasAlpha   = true;
    _format     = kPixelFormatBGRA;
    _formatRaw  = kPixelFormatRGBA8;
    _dataType   = kPixelDataType8;

    _mipMaps.push_back(new MipMap(this));

    _mipMaps[0]->width  = width;
    _mipMaps[0]->height = height;
    _mipMaps[0]->size   = _mipMaps[0]->width * _mipMaps[0]->height * 4;

    _mipMaps[0]->data.reset(new byte[_mipMaps[0]->size]);
}

Surface::~Surface() {
}

int Surface::getWidth() const {
    return _mipMaps[0]->width;
}

int Surface::getHeight() const {
    return _mipMaps[0]->height;
}

byte *Surface::getData() {
    return _mipMaps[0]->data.get();
}

const byte *Surface::getData() const {
    return _mipMaps[0]->data.get();
}

void Surface::fill(byte r, byte g, byte b, byte a) {
    if ((r == g) && (r == b) && (r == a)) {
        std::memset(_mipMaps[0]->data.get(), r, _mipMaps[0]->size);
        return;
    }

    byte  *data = _mipMaps[0]->data.get();
    uint32 size = _mipMaps[0]->size / 4;
    while (size-- > 0) {
        *data++ = b;
        *data++ = g;
        *data++ = r;
        *data++ = a;
    }
}

const ImageDecoder::MipMap &Surface::getMipMap(size_t mipMap) const {
    return ImageDecoder::getMipMap(mipMap);
}

const ImageDecoder::MipMap &Surface::getMipMap() const {
    return *_mipMaps[0];
}

ImageDecoder::MipMap &Surface::getMipMap() {
    return *_mipMaps[0];
}

} // End of namespace Graphics