Phoronix: OpenGL 4.4 ARB_buffer_storage Comes To Radeon Gallium3D
The latest work by Marek Olšák of AMD is implementing ARB_buffer_storage support within the R300, R600, and RadeonSI open-source AMD Linux graphics drivers...
I guess this particular extension doesn't require special hardware support, or Marek wouldn't have implemented it in r300 driver, since those cards only support OpenGL 2.xSo is wikipedia wrong here or is this just implemented as a software accelerated feature?
Just because a certain class of hardware cannot support a GL version, doesn't mean it cannot implement parts of it. Case in point: many OpenGL 2.0 class cards offer framebuffer object (offscreen rendering) support, which is only became core in GL 3.0 (in fact my engine relies on it, and thus I can state the minimum version as "2.0").