On 01/07/2014 05:46 PM, Anuj Phogat wrote:
> intelEmitCopyBlit uses a signed 16-bit integer to represent
> buffer pitch, so it can only handle buffer pitches < 32k.
>
> Cc: mesa-sta...@lists.freedesktop.org
> Signed-off-by: Anuj Phogat <anuj.pho...@gmail.com>
Reviewed-by: Ian Romanick <ian.d.roman...@intel.com>
> ---
> Dropping few changes made in earlier patch. If region->bo->size >=
> max_gtt_map_object_size, we can't fall back to intel_miptree_map_gtt().
>
> src/mesa/drivers/dri/i965/intel_blit.c | 6 +++---
> 1 file changed, 3 insertions(+), 3 deletions(-)
>
> diff --git a/src/mesa/drivers/dri/i965/intel_blit.c
> b/src/mesa/drivers/dri/i965/intel_blit.c
> index 7bc289f..32431b9 100644
> --- a/src/mesa/drivers/dri/i965/intel_blit.c
> +++ b/src/mesa/drivers/dri/i965/intel_blit.c
> @@ -199,9 +199,9 @@ intel_miptree_blit(struct brw_context *brw,
> * As a result of these two limitations, we can only use the blitter to do
> * this copy when the region's pitch is less than 32k.
> */
> - if (src_mt->region->pitch > 32768 ||
> - dst_mt->region->pitch > 32768) {
> - perf_debug("Falling back due to >32k pitch\n");
> + if (src_mt->region->pitch >= 32768 ||
> + dst_mt->region->pitch >= 32768) {
> + perf_debug("Falling back due to >=32k pitch\n");
> return false;
> }
>
>
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