QGLContext Class Reference
[QtOpenGL module]

GLuint QGLContext::bindTexture ( const QImage & image, GLenum target, GLint format, BindOptions options )

Generates and binds a 2D GL texture to the current context, based on image. The generated texture id is returned and can be used in later glBindTexture() calls.

The target parameter specifies the texture target. The default target is GL_TEXTURE_2D.

The format parameter sets the internal format for the texture. The default format is GL_RGBA.

The binding options are a set of options used to decide how to bind the texture to the context.

The texture that is generated is cached, so multiple calls to bindTexture() with the same QImage will return the same texture id.

Note that we assume default values for the glPixelStore() and glPixelTransfer() parameters.

This function was introduced in Qt 4.6.

See also deleteTexture().

GLuint QGLContext::bindTexture ( const QString & fileName )

This is an overloaded function.

Reads the compressed texture file fileName and generates a 2D GL texture from it.

This function can load DirectDrawSurface (DDS) textures in the DXT1, DXT3 and DXT5 DDS formats if the GL_ARB_texture_compression and GL_EXT_texture_compression_s3tc extensions are supported.

Since 4.6.1, textures in the ETC1 format can be loaded if the GL_OES_compressed_ETC1_RGB8_texture extension is supported and the ETC1 texture has been encapsulated in the PVR container format. Also, textures in the PVRTC2 and PVRTC4 formats can be loaded if the GL_IMG_texture_compression_pvrtc extension is supported.

See also deleteTexture().

GLuint QGLContext::bindTexture ( const QImage & image, GLenum target = GL_TEXTURE_2D, GLint format = GL_RGBA )

Generates and binds a 2D GL texture to the current context, based on image. The generated texture id is returned and can be used in later glBindTexture() calls.

This is an overloaded function.

GLuint QGLContext::bindTexture ( const QPixmap & pixmap, GLenum target = GL_TEXTURE_2D, GLint format = GL_RGBA )

This is an overloaded function.

Generates and binds a 2D GL texture based on pixmap.

GLuint QGLContext::bindTexture ( const QPixmap & pixmap, GLenum target, GLint format, BindOptions options )

This is an overloaded function.

Generates and binds a 2D GL texture to the current context, based on pixmap.

This function was introduced in Qt 4.6.

 QGLContext *cx;
 //  ...
 QGLFormat f;
 f.setStereo(true);
 cx->setFormat(f);
 if (!cx->create())
     exit(); // no OpenGL support, or cannot render on the specified paintdevice
 if (!cx->format().stereo())
     exit(); // could not create stereo context