Aligning the pitch to 4 bytes allows the BLT engine to be used for
transfers to/from these surfaces.
Fixes:
f3630548f1da ("crocus: initial gallium driver for Intel gfx 4-7")
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/12329>
const enum isl_format format =
crocus_format_for_usage(&screen->devinfo, templ->format, usage).fmt;
+ if (row_pitch_B == 0 && templ->usage == PIPE_USAGE_STAGING &&
+ templ->target == PIPE_TEXTURE_2D &&
+ devinfo->ver < 6) {
+ /* align row pitch to 4 so we can keep using BLT engine */
+ row_pitch_B = util_format_get_stride(templ->format, templ->width0);
+ row_pitch_B = ALIGN(row_pitch_B, 4);
+ }
+
const struct isl_surf_init_info init_info = {
.dim = crocus_target_to_isl_surf_dim(templ->target),
.format = format,