GlfAnyGLContextScopeHolder Class Reference

Helper class to make the shared GL context current if there is no valid current context. More...

Inheritance diagram for GlfAnyGLContextScopeHolder:

Detailed Description

Helper class to make the shared GL context current if there is no valid current context.

Example:

*      class MyTexture {
*      public:
*          MyTexture() : _textureId(0) {
*              // Ensure we have valid GL context to allocate
*              GlfAnyGLContextScopeHolder anyContextScopeHolder;
*              glGenTextures(1, &_textureId);
*          }
* 
*          ~MyTexture() {
*              // Ensure we have valid GL context to delete
*              GlfAnyGLContextScopeHolder anyContextScopeHolder;
*              glDeleteTextures(1, &_texureId);
*              _textureId = 0;
*          }
* 
*          // The caller is responsible for making sure that a suitable
*          // GL context is current before calling other methods.
* 
*          void Bind() {
*              glBindTexture(GL_TEXTURE_2D, _textureId);
*          }
* 
*          void Unbind() {
*              glBindTexture(GL_TEXTURE_2D, 0);
*          }
* 
*          ...
* 
*      private:
*          GLuint _textureId;
* 
*      };
*  

Definition at line 299 of file glContext.h.

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The documentation for this class was generated from the following file:

• pxr/imaging/glf/glContext.h