Package com.badlogic.gdx.graphics.glutils

Interface IndexData

    • Method Summary

      All Methods Instance Methods Abstract Methods Deprecated Methods 
      Modifier and Type Method Description
      void bind()
      Binds this IndexBufferObject for rendering with glDrawElements.
      void dispose()
      Disposes this IndexDatat and all its associated OpenGL resources.
      java.nio.ShortBuffer getBuffer()
      Deprecated.
      use getBuffer(boolean) instead
      java.nio.ShortBuffer getBuffer​(boolean forWriting)
      Returns the underlying ShortBuffer for reading or writing.
      int getNumIndices()  
      int getNumMaxIndices()  
      void invalidate()
      Invalidates the IndexBufferObject so a new OpenGL buffer handle is created.
      void setIndices​(short[] indices, int offset, int count)
      Sets the indices of this IndexBufferObject, discarding the old indices.
      void setIndices​(java.nio.ShortBuffer indices)
      Copies the specified indices to the indices of this IndexBufferObject, discarding the old indices.
      void unbind()
      Unbinds this IndexBufferObject.
      void updateIndices​(int targetOffset, short[] indices, int offset, int count)
      Update (a portion of) the indices.

    • Method Detail

      • getNumIndices

        int getNumIndices()
        Returns:
        the number of indices currently stored in this buffer

      • getNumMaxIndices

        int getNumMaxIndices()
        Returns:
        the maximum number of indices this IndexBufferObject can store.

      • setIndices

        void setIndices​(short[] indices,
                int offset,
                int count)

        Sets the indices of this IndexBufferObject, discarding the old indices. The count must equal the number of indices to be copied to this IndexBufferObject.

        This can be called in between calls to bind() and unbind(). The index data will be updated instantly.

        Parameters:
        indices - the index data
        offset - the offset to start copying the data from
        count - the number of shorts to copy

      • setIndices

        void setIndices​(java.nio.ShortBuffer indices)
        Copies the specified indices to the indices of this IndexBufferObject, discarding the old indices. Copying start at the current Buffer.position() of the specified buffer and copied the Buffer.remaining() amount of indices. This can be called in between calls to bind() and unbind(). The index data will be updated instantly.
        Parameters:
        indices - the index data to copy

      • updateIndices

        void updateIndices​(int targetOffset,
                   short[] indices,
                   int offset,
                   int count)
        Update (a portion of) the indices.
        Parameters:
        targetOffset - offset in indices buffer
        indices - the index data
        offset - the offset to start copying the data from
        count - the number of shorts to copy

      • getBuffer

        @Deprecated
java.nio.ShortBuffer getBuffer()
        Deprecated.
        use getBuffer(boolean) instead

        Returns the underlying ShortBuffer. If you modify the buffer contents they will be uploaded on the next call to bind(). If you need immediate uploading use setIndices(short[], int, int).

        Returns:
        the underlying short buffer.

      • getBuffer

        java.nio.ShortBuffer getBuffer​(boolean forWriting)
        Returns the underlying ShortBuffer for reading or writing.
        Parameters:
        forWriting - when true, the underlying buffer will be uploaded on the next call to bind(). If you need immediate uploading use setIndices(short[], int, int).
        Returns:
        the underlying short buffer.

      • bind

        void bind()
        Binds this IndexBufferObject for rendering with glDrawElements.

      • unbind

        void unbind()
        Unbinds this IndexBufferObject.

      • invalidate

        void invalidate()
        Invalidates the IndexBufferObject so a new OpenGL buffer handle is created. Use this in case of a context loss.

      • dispose

        void dispose()
        Disposes this IndexDatat and all its associated OpenGL resources.
        Specified by:
        dispose in interface Disposable