1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the demonstration applications of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:BSD$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** BSD License Usage 18 ** Alternatively, you may use this file under the terms of the BSD license 19 ** as follows: 20 ** 21 ** "Redistribution and use in source and binary forms, with or without 22 ** modification, are permitted provided that the following conditions are 23 ** met: 24 ** * Redistributions of source code must retain the above copyright 25 ** notice, this list of conditions and the following disclaimer. 26 ** * Redistributions in binary form must reproduce the above copyright 27 ** notice, this list of conditions and the following disclaimer in 28 ** the documentation and/or other materials provided with the 29 ** distribution. 30 ** * Neither the name of The Qt Company Ltd nor the names of its 31 ** contributors may be used to endorse or promote products derived 32 ** from this software without specific prior written permission. 33 ** 34 ** 35 ** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 36 ** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 37 ** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 38 ** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 39 ** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 40 ** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 41 ** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 42 ** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 43 ** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 44 ** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 45 ** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE." 46 ** 47 ** $QT_END_LICENSE$ 48 ** 49 ****************************************************************************/ 50 51 #ifndef ETCPROVIDER_H 52 #define ETCPROVIDER_H 53 54 #include <QOpenGLFunctions> 55 #include <QQuickImageProvider> 56 #include <QtQuick/QSGTexture> 57 #include <QUrl> 58 59 class EtcProvider : public QQuickImageProvider 60 { 61 public: EtcProvider()62 EtcProvider() 63 : QQuickImageProvider(QQuickImageProvider::Texture) 64 {} 65 66 QQuickTextureFactory *requestTexture(const QString &id, QSize *size, const QSize &requestedSize); 67 68 void setBaseUrl(const QUrl &base); 69 70 private: 71 QUrl m_baseUrl; 72 }; 73 74 class EtcTexture : public QSGTexture, protected QOpenGLFunctions 75 { 76 Q_OBJECT 77 public: 78 EtcTexture(); 79 ~EtcTexture(); 80 81 void bind(); 82 textureSize()83 QSize textureSize() const { return m_size; } 84 int textureId() const; 85 hasAlphaChannel()86 bool hasAlphaChannel() const { return false; } hasMipmaps()87 bool hasMipmaps() const { return false; } 88 89 QByteArray m_data; 90 QSize m_size; 91 QSize m_paddedSize; 92 GLuint m_texture_id; 93 bool m_uploaded; 94 }; 95 96 #endif // ETCPROVIDER_H 97