-/**
- * Set the framebuffer's _DepthBuffer field, taking care of
- * reference counts, etc.
- */
-static void
-set_depth_renderbuffer(struct gl_framebuffer *fb,
- struct gl_renderbuffer *rb)
-{
- if (fb->_DepthBuffer) {
- _mesa_unreference_renderbuffer(&fb->_DepthBuffer);
- }
- fb->_DepthBuffer = rb;
- if (rb) {
- rb->RefCount++;
- }
-}
-
-
-/**
- * Set the framebuffer's _StencilBuffer field, taking care of
- * reference counts, etc.
- */
-static void
-set_stencil_renderbuffer(struct gl_framebuffer *fb,
- struct gl_renderbuffer *rb)
-{
- if (fb->_StencilBuffer) {
- _mesa_unreference_renderbuffer(&fb->_StencilBuffer);
- }
- fb->_StencilBuffer = rb;
- if (rb) {
- rb->RefCount++;
- }
+ /* Minimum resolvable depth value, for polygon offset */
+ fb->_MRD = 1.0 / fb->_DepthMaxF;