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Diffstat (limited to 'src/opengl/qopengltexture_p.h')
-rw-r--r-- | src/opengl/qopengltexture_p.h | 184 |
1 files changed, 184 insertions, 0 deletions
diff --git a/src/opengl/qopengltexture_p.h b/src/opengl/qopengltexture_p.h new file mode 100644 index 0000000000..1dc0801644 --- /dev/null +++ b/src/opengl/qopengltexture_p.h @@ -0,0 +1,184 @@ +/**************************************************************************** +** +** 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 |