Revision control
Copy as Markdown
// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qsgopenvgtexture.h"
#include "qsgopenvghelpers.h"
QT_BEGIN_NAMESPACE
QSGOpenVGTexture::QSGOpenVGTexture(const QImage &image, uint flags)
{
Q_UNUSED(flags);
VGImageFormat format = QSGOpenVGHelpers::qImageFormatToVGImageFormat(image.format());
m_image = vgCreateImage(format, image.width(), image.height(), VG_IMAGE_QUALITY_BETTER);
// Do Texture Upload
vgImageSubData(m_image, image.constBits(), image.bytesPerLine(), format, 0, 0, image.width(), image.height());
}
QSGOpenVGTexture::~QSGOpenVGTexture()
{
vgDestroyImage(m_image);
}
qint64 QSGOpenVGTexture::comparisonKey() const
{
return qint64(static_cast<int>(m_image));
}
QSize QSGOpenVGTexture::textureSize() const
{
VGint imageWidth = vgGetParameteri(m_image, VG_IMAGE_WIDTH);
VGint imageHeight = vgGetParameteri(m_image, VG_IMAGE_HEIGHT);
return QSize(imageWidth, imageHeight);
}
bool QSGOpenVGTexture::hasAlphaChannel() const
{
VGImageFormat format = static_cast<VGImageFormat>(vgGetParameteri(m_image, VG_IMAGE_FORMAT));
switch (format) {
case VG_sRGBA_8888:
case VG_sRGBA_8888_PRE:
case VG_sRGBA_5551:
case VG_sRGBA_4444:
case VG_lRGBA_8888:
case VG_lRGBA_8888_PRE:
case VG_A_8:
case VG_A_1:
case VG_A_4:
case VG_sARGB_8888:
case VG_sARGB_8888_PRE:
case VG_sARGB_1555:
case VG_sARGB_4444:
case VG_lARGB_8888:
case VG_lARGB_8888_PRE:
case VG_sBGRA_8888:
case VG_sBGRA_8888_PRE:
case VG_sBGRA_5551:
case VG_sBGRA_4444:
case VG_lBGRA_8888:
case VG_lBGRA_8888_PRE:
case VG_sABGR_8888:
case VG_sABGR_8888_PRE:
case VG_sABGR_1555:
case VG_sABGR_4444:
case VG_lABGR_8888:
case VG_lABGR_8888_PRE:
return true;
break;
default:
break;
}
return false;
}
bool QSGOpenVGTexture::hasMipmaps() const
{
return false;
}
QT_END_NAMESPACE