1.1 --- a/src/display.h	Fri Oct 22 20:55:32 2010 +1000
     1.2 +++ b/src/display.h	Wed Feb 15 17:54:51 2012 +1000
     1.3 @@ -108,6 +108,43 @@
     1.4      int stencil_bits; /* 0 = no stencil buffer */
     1.5  };
     1.6  
     1.7 +struct vertex_buffer {
     1.8 +    /**
     1.9 +     * Map the buffer into the host address space (if necessary) in preparation
    1.10 +     * for filling the buffer. This also implies a fence operation.
    1.11 +     * @param buf previously allocated buffer
    1.12 +     * @param size number of bytes of the buffer actually to be used. The buffer
    1.13 +     * will be resized if necessary.
    1.14 +     * @return a pointer to the start of the buffer.
    1.15 +     */
    1.16 +    void *(*map)(vertex_buffer_t buf, uint32_t size);
    1.17 +
    1.18 +    /**
    1.19 +     * Unmap the buffer, after the vertex data is written.
    1.20 +     * @return the buffer base to use for gl*Pointer calls
    1.21 +     */
    1.22 +    void *(*unmap)(vertex_buffer_t buf);
    1.23 +
    1.24 +    /**
    1.25 +     * Mark the buffer as finished, indicating that the vertex data is no
    1.26 +     * longer required (ie rendering is complete).
    1.27 +     */
    1.28 +    void (*finished)(vertex_buffer_t buf);
    1.29 +
    1.30 +    /**
    1.31 +     * Delete the buffer and all associated resources.
    1.32 +     */
    1.33 +    void (*destroy)(vertex_buffer_t buf);
    1.34 +
    1.35 +    /* Private data */
    1.36 +    void *data;
    1.37 +    GLuint id;
    1.38 +    uint32_t capacity;
    1.39 +    uint32_t mapped_size;
    1.40 +    GLuint fence;
    1.41 +};
    1.42 +
    1.43 +
    1.44  /**
    1.45   * Core video driver - exports function to setup a GL context, as well as handle
    1.46   * keyboard input and display resultant output.
    1.47 @@ -213,11 +250,17 @@
    1.48              int rowstride, int format );
    1.49  
    1.50      /**
    1.51 +     * Create a new vertex buffer
    1.52 +     */
    1.53 +    vertex_buffer_t (*create_vertex_buffer)( );
    1.54 +
    1.55 +    /**
    1.56       * Dump driver-specific information about the implementation to the given stream
    1.57       */
    1.58      void (*print_info)( FILE *out );
    1.59  
    1.60      struct display_capabilities capabilities;
    1.61 +
    1.62  } *display_driver_t;
    1.63  
    1.64  /**