diff options
author | Sean Harmer <sean.harmer@kdab.com> | 2013-03-20 17:20:28 +0000 |
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committer | The Qt Project <gerrit-noreply@qt-project.org> | 2013-09-22 08:56:47 +0200 |
commit | 1b34df6ea600bd361768be4091a255987e38f91c (patch) | |
tree | c6560a72770a7d7371f559280a2b8fa7a4ebe22c /src/gui/opengl/qopengltexture_p.h | |
parent | 42d681f9cfc984046a93b9efe19903d46ac68bb1 (diff) |
Long live QOpenGLTexture!
Task-number: QTBUG-33274
Change-Id: I9259d947d11f8ba330a2cd7f5620d8f1af0a804b
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>
Reviewed-by: Gunnar Sletta <gunnar.sletta@digia.com>
Diffstat (limited to 'src/gui/opengl/qopengltexture_p.h')
-rw-r--r-- | src/gui/opengl/qopengltexture_p.h | 164 |
1 files changed, 164 insertions, 0 deletions
diff --git a/src/gui/opengl/qopengltexture_p.h b/src/gui/opengl/qopengltexture_p.h new file mode 100644 index 0000000000..009561533b --- /dev/null +++ b/src/gui/opengl/qopengltexture_p.h @@ -0,0 +1,164 @@ +/**************************************************************************** +** +** Copyright (C) 2013 Klaralvdalens Datakonsult AB (KDAB). +** Contact: http://www.qt-project.org/legal +** +** This file is part of the QtGui 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 Digia. For licensing terms and +** conditions see http://qt.digia.com/licensing. For further information +** use the contact form at http://qt.digia.com/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 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Digia gives you certain additional +** rights. These rights are described in the Digia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 3.0 as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU General Public License version 3.0 requirements will be +** met: http://www.gnu.org/copyleft/gpl.html. +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QABSTRACTOPENGLTEXTURE_P_H +#define QABSTRACTOPENGLTEXTURE_P_H + +#ifndef QT_NO_OPENGL + +#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 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(); + void allocateMutableStorage(); + void allocateImmutableStorage(); + void setData(int mipLevel, int layer, QOpenGLTexture::CubeMapFace cubeFace, + QOpenGLTexture::PixelFormat sourceFormat, QOpenGLTexture::PixelType sourceType, + void *data, const QOpenGLPixelTransferOptions * const options); + void setCompressedData(int mipLevel, int layer, QOpenGLTexture::CubeMapFace cubeFace, + int dataSize, 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))); + } + + 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::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; + + QPair<int, int> glVersion; + QOpenGLTextureHelper *texFuncs; + + QOpenGLTexture::Features features; +}; + +QT_END_NAMESPACE + +#undef Q_CALL_MEMBER_FUNCTION + +#endif // QT_NO_OPENGL + +#endif // QABSTRACTOPENGLTEXTURE_P_H |