On Sat, 20 Nov 2010 22:43:56 +0100, Jakob Bornecrantz <wallbra...@gmail.com>
wrote:
> On Fri, Nov 19, 2010 at 11:38 PM, Daniel Vetter <daniel.vet...@ffwll.ch>
> wrote:
> > Â #define BUF_3D_TILED_SURFACE Â (1<<22)
> > Â #define BUF_3D_TILE_WALK_X Â Â 0
> > Â #define BUF_3D_TILE_WALK_Y Â Â (1<<21)
> > +#define BUF_3D_TILE_BITS(tiling) (((tiling) ? BUF_3D_TILED_SURFACE : 0) \
> > + Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â | ((tiling) == I915_TILE_Y ?
> > Â BUF_3D_TILE_WALK_Y : 0))
>
> Hmm are textures never X tiled?
The macro is correct if rather obtuse. I prefer
static inline uint32_t i915_buf_tiling(uint32_t tiling)
{
uint32_t v = 0;
switch (tiling) {
case I915_TILING_Y: v |= BUF_3D_TILE_WALK_Y;
case I915_TILING_X: v |= BUF_3D_TILED_SURFACE;
case I915_TILING_NONE: break;
}
return v;
}
--
Chris Wilson, Intel Open Source Technology Centre
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