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sna/dri: Hook up a compile option to switch colour buffers to Y-tiling 

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Chris Wilson 2012-01-12 23:11:05 +00:00
parent 59b79e5952
commit 5c2c6474ef
1 changed files with 19 additions and 3 deletions
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22
src/sna/sna_dri.c
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@ -56,6 +56,8 @@ USE OR OTHER DEALINGS IN THE SOFTWARE.
#define DBG(x) ErrorF x
#endif
#define COLOR_PREFER_TILING_Y 0
enum frame_event_type {
DRI2_SWAP,
DRI2_SWAP_THROTTLE,
@ -122,6 +124,18 @@ static inline struct kgem_bo *ref(struct kgem_bo *bo)
return bo;
}
/* Prefer to enable TILING_Y if this buffer will never be a
* candidate for pageflipping
*/
static bool color_use_tiling_y(struct sna *sna, DrawablePtr drawable)
{
if (!COLOR_PREFER_TILING_Y)
return false;
return (drawable->width != sna->front->drawable.width ||
drawable->height != sna->front->drawable.height);
}
static struct kgem_bo *sna_pixmap_set_dri(struct sna *sna,
PixmapPtr pixmap)
{
@ -134,8 +148,9 @@ static struct kgem_bo *sna_pixmap_set_dri(struct sna *sna,
if (priv->flush)
return ref(priv->gpu_bo);
if (priv->cpu_damage)
list_add(&priv->list, &sna->dirty_pixmaps);
if (priv->gpu_bo->tiling != I915_TILING_Y &&
color_use_tiling_y(sna, &pixmap->drawable))
sna_pixmap_change_tiling(pixmap, I915_TILING_Y);
/* We need to submit any modifications to and reads from this
* buffer before we send any reply to the Client.
@ -194,7 +209,8 @@ sna_dri_create_buffer(DrawablePtr drawable,
drawable->width,
drawable->height,
drawable->bitsPerPixel,
I915_TILING_X, CREATE_EXACT);
color_use_tiling_y(sna, drawable) ? I915_TILING_Y : I915_TILING_X,
CREATE_EXACT);
break;
case DRI2BufferStencil: