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+/****************************************************************************
+**
+** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB).
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtOpenGL module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QABSTRACTOPENGLTEXTURE_P_H
+#define QABSTRACTOPENGLTEXTURE_P_H
+
+//
+// W A R N I N G
+// -------------
+//
+// This file is not part of the Qt API. It exists purely as an
+// implementation detail. This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef QT_NO_OPENGL
+
+#include <QtOpenGL/qtopenglglobal.h>
+#include "private/qobject_p.h"
+#include "qopengltexture.h"
+#include "qopengl.h"
+
+#include <cmath>
+
+namespace {
+inline double qLog2(const double x)
+{
+ return std::log(x) / std::log(2.0);
+}
+}
+
+QT_BEGIN_NAMESPACE
+
+class QOpenGLContext;
+class QOpenGLTextureHelper;
+class QOpenGLFunctions;
+
+class QOpenGLTexturePrivate
+{
+public:
+ QOpenGLTexturePrivate(QOpenGLTexture::Target textureTarget,
+ QOpenGLTexture *qq);
+ ~QOpenGLTexturePrivate();
+
+ Q_DECLARE_PUBLIC(QOpenGLTexture)
+
+ void resetFuncs(QOpenGLTextureHelper *funcs);
+ void initializeOpenGLFunctions();
+
+ bool create();
+ void destroy();
+
+ void bind();
+ void bind(uint unit, QOpenGLTexture::TextureUnitReset reset = QOpenGLTexture::DontResetTextureUnit);
+ void release();
+ void release(uint unit, QOpenGLTexture::TextureUnitReset reset = QOpenGLTexture::DontResetTextureUnit);
+ bool isBound() const;
+ bool isBound(uint unit) const;
+
+ void allocateStorage(QOpenGLTexture::PixelFormat pixelFormat, QOpenGLTexture::PixelType pixelType);
+ void allocateMutableStorage(QOpenGLTexture::PixelFormat pixelFormat, QOpenGLTexture::PixelType pixelType);
+ void allocateImmutableStorage();
+ void setData(int mipLevel, int layer, int layerCount, QOpenGLTexture::CubeMapFace cubeFace,
+ QOpenGLTexture::PixelFormat sourceFormat, QOpenGLTexture::PixelType sourceType,
+ const void *data, const QOpenGLPixelTransferOptions * const options);
+ void setData(int xOffset, int yOffset, int zOffset, int width, int height, int depth,
+ int mipLevel, int layer, int layerCount, QOpenGLTexture::CubeMapFace cubeFace,
+ QOpenGLTexture::PixelFormat sourceFormat, QOpenGLTexture::PixelType sourceType,
+ const void *data, const QOpenGLPixelTransferOptions * const options);
+ void setCompressedData(int mipLevel, int layer, int layerCount, QOpenGLTexture::CubeMapFace cubeFace,
+ int dataSize, const void *data,
+ const QOpenGLPixelTransferOptions * const options);
+
+
+ void setWrapMode(QOpenGLTexture::WrapMode mode);
+ void setWrapMode(QOpenGLTexture::CoordinateDirection direction, QOpenGLTexture::WrapMode mode);
+ QOpenGLTexture::WrapMode wrapMode(QOpenGLTexture::CoordinateDirection direction) const;
+
+ QOpenGLTexture *createTextureView(QOpenGLTexture::Target target, QOpenGLTexture::TextureFormat viewFormat,
+ int minimumMipmapLevel, int maximumMipmapLevel,
+ int minimumLayer, int maximumLayer) const;
+
+ int evaluateMipLevels() const;
+
+ inline int maximumMipLevelCount() const
+ {
+ return 1 + std::floor(qLog2(qMax(dimensions[0], qMax(dimensions[1], dimensions[2]))));
+ }
+
+ static inline int mipLevelSize(int mipLevel, int baseLevelSize)
+ {
+ return std::floor(double(qMax(1, baseLevelSize >> mipLevel)));
+ }
+
+ bool isUsingImmutableStorage() const;
+
+ QOpenGLTexture *q_ptr;
+ QOpenGLContext *context;
+ QOpenGLTexture::Target target;
+ QOpenGLTexture::BindingTarget bindingTarget;
+ GLuint textureId;
+ QOpenGLTexture::TextureFormat format;
+ QOpenGLTexture::TextureFormatClass formatClass;
+ int dimensions[3];
+ int requestedMipLevels;
+ int mipLevels;
+ int layers;
+ int faces;
+
+ int samples;
+ bool fixedSamplePositions;
+
+ int baseLevel;
+ int maxLevel;
+
+ QOpenGLTexture::SwizzleValue swizzleMask[4];
+ QOpenGLTexture::DepthStencilMode depthStencilMode;
+ QOpenGLTexture::ComparisonFunction comparisonFunction;
+ QOpenGLTexture::ComparisonMode comparisonMode;
+
+ QOpenGLTexture::Filter minFilter;
+ QOpenGLTexture::Filter magFilter;
+ float maxAnisotropy;
+ QOpenGLTexture::WrapMode wrapModes[3];
+ QVariantList borderColor;
+ float minLevelOfDetail;
+ float maxLevelOfDetail;
+ float levelOfDetailBias;
+
+ bool textureView;
+ bool autoGenerateMipMaps;
+ bool storageAllocated;
+
+ QOpenGLTextureHelper *texFuncs;
+ QOpenGLFunctions *functions;
+
+ QOpenGLTexture::Features features;
+};
+
+QT_END_NAMESPACE
+
+#undef Q_CALL_MEMBER_FUNCTION
+
+#endif // QT_NO_OPENGL
+
+#endif // QABSTRACTOPENGLTEXTURE_P_H