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| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
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| ** |
| ** This file is part of the QtOpenGL module of the Qt Toolkit. |
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| ** Alternatively, this file may be used under the terms of the GNU |
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| ** Public license version 3 or any later version approved by the KDE Free |
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| ****************************************************************************/ |
| |
| #ifndef QGLFRAMEBUFFEROBJECT_H |
| #define QGLFRAMEBUFFEROBJECT_H |
| |
| #include <QtOpenGL/qgl.h> |
| #include <QtGui/qpaintdevice.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| |
| class QGLFramebufferObjectPrivate; |
| class QGLFramebufferObjectFormat; |
| |
| class Q_OPENGL_EXPORT QGLFramebufferObject : public QPaintDevice |
| { |
| Q_DECLARE_PRIVATE(QGLFramebufferObject) |
| public: |
| enum Attachment { |
| NoAttachment, |
| CombinedDepthStencil, |
| Depth |
| }; |
| |
| QGLFramebufferObject(const QSize &size, GLenum target = GL_TEXTURE_2D); |
| QGLFramebufferObject(int width, int height, GLenum target = GL_TEXTURE_2D); |
| |
| QGLFramebufferObject(const QSize &size, Attachment attachment, |
| GLenum target = GL_TEXTURE_2D, GLenum internal_format = 0); |
| QGLFramebufferObject(int width, int height, Attachment attachment, |
| GLenum target = GL_TEXTURE_2D, GLenum internal_format = 0); |
| |
| QGLFramebufferObject(const QSize &size, const QGLFramebufferObjectFormat &format); |
| QGLFramebufferObject(int width, int height, const QGLFramebufferObjectFormat &format); |
| |
| virtual ~QGLFramebufferObject(); |
| |
| QGLFramebufferObjectFormat format() const; |
| |
| bool isValid() const; |
| bool isBound() const; |
| bool bind(); |
| bool release(); |
| |
| GLuint texture() const; |
| QSize size() const; |
| QImage toImage() const; |
| Attachment attachment() const; |
| |
| QPaintEngine *paintEngine() const override; |
| GLuint handle() const; |
| |
| static bool bindDefault(); |
| |
| static bool hasOpenGLFramebufferObjects(); |
| |
| void drawTexture(const QRectF &target, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D); |
| void drawTexture(const QPointF &point, GLuint textureId, GLenum textureTarget = GL_TEXTURE_2D); |
| |
| static bool hasOpenGLFramebufferBlit(); |
| static void blitFramebuffer(QGLFramebufferObject *target, const QRect &targetRect, |
| QGLFramebufferObject *source, const QRect &sourceRect, |
| GLbitfield buffers = GL_COLOR_BUFFER_BIT, |
| GLenum filter = GL_NEAREST); |
| |
| protected: |
| int metric(PaintDeviceMetric metric) const override; |
| int devType() const override { return QInternal::FramebufferObject; } |
| |
| private: |
| Q_DISABLE_COPY(QGLFramebufferObject) |
| QScopedPointer<QGLFramebufferObjectPrivate> d_ptr; |
| friend class QGLPaintDevice; |
| friend class QGLFBOGLPaintDevice; |
| }; |
| |
| class QGLFramebufferObjectFormatPrivate; |
| class Q_OPENGL_EXPORT QGLFramebufferObjectFormat |
| { |
| public: |
| QGLFramebufferObjectFormat(); |
| QGLFramebufferObjectFormat(const QGLFramebufferObjectFormat &other); |
| QGLFramebufferObjectFormat &operator=(const QGLFramebufferObjectFormat &other); |
| ~QGLFramebufferObjectFormat(); |
| |
| void setSamples(int samples); |
| int samples() const; |
| |
| void setMipmap(bool enabled); |
| bool mipmap() const; |
| |
| void setAttachment(QGLFramebufferObject::Attachment attachment); |
| QGLFramebufferObject::Attachment attachment() const; |
| |
| void setTextureTarget(GLenum target); |
| GLenum textureTarget() const; |
| |
| void setInternalTextureFormat(GLenum internalTextureFormat); |
| GLenum internalTextureFormat() const; |
| |
| bool operator==(const QGLFramebufferObjectFormat& other) const; |
| bool operator!=(const QGLFramebufferObjectFormat& other) const; |
| |
| private: |
| QGLFramebufferObjectFormatPrivate *d; |
| |
| void detach(); |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QGLFRAMEBUFFEROBJECT_H |