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i965/blorp: Move surface offset calculations into a helper

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The helper does a full transformation on the surface to turn it into a new
2-D single-layer single-level surface representing the original layer and
level in memory.

Reviewed-by: Topi Pohjolainen <topi.pohjolainen@intel.com>
This commit is contained in:
Jason Ekstrand 2016-06-23 20:48:20 -07:00
parent 90ab43d1bb
commit 2095f932ef
1 changed files with 43 additions and 32 deletions
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75
src/mesa/drivers/dri/i965/brw_blorp.c
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@ -114,6 +114,46 @@ blorp_get_image_offset_sa(struct isl_device *dev, const struct isl_surf *surf,
}
}
static void
surf_apply_level_layer_offsets(struct isl_device *dev, struct isl_surf *surf,
struct isl_view *view, uint32_t *byte_offset,
uint32_t *tile_x_sa, uint32_t *tile_y_sa)
{
/* This only makes sense for a single level and array slice */
assert(view->levels == 1 && view->array_len == 1);
uint32_t x_offset_sa, y_offset_sa;
blorp_get_image_offset_sa(dev, surf, view->base_level,
view->base_array_layer,
&x_offset_sa, &y_offset_sa);
isl_tiling_get_intratile_offset_sa(dev, surf->tiling, view->format,
surf->row_pitch, x_offset_sa, y_offset_sa,
byte_offset, tile_x_sa, tile_y_sa);
/* Now that that's done, we have a very bare 2-D surface */
surf->dim = ISL_SURF_DIM_2D;
surf->dim_layout = ISL_DIM_LAYOUT_GEN4_2D;
surf->logical_level0_px.width =
minify(surf->logical_level0_px.width, view->base_level);
surf->logical_level0_px.height =
minify(surf->logical_level0_px.height, view->base_level);
surf->logical_level0_px.depth = 1;
surf->logical_level0_px.array_len = 1;
surf->levels = 1;
/* Alignment doesn't matter since we have 1 miplevel and 1 array slice so
* just pick something that works for everybody.
*/
surf->image_alignment_el = isl_extent3d(4, 4, 1);
/* TODO: surf->physcal_level0_extent_sa? */
view->base_level = 0;
view->base_array_layer = 0;
}
void
brw_blorp_surface_info_init(struct brw_context *brw,
struct brw_blorp_surface_info *info,
@ -206,20 +246,9 @@ brw_blorp_surface_info_init(struct brw_context *brw,
}
}
uint32_t x_offset, y_offset;
blorp_get_image_offset_sa(&brw->isl_dev, &info->surf,
level, layer / layer_multiplier,
&x_offset, &y_offset);
uint32_t mt_x, mt_y;
intel_miptree_get_image_offset(mt, level, layer, &mt_x, &mt_y);
assert(mt_x == x_offset && mt_y == y_offset);
isl_tiling_get_intratile_offset_sa(&brw->isl_dev, info->surf.tiling,
info->view.format,
info->surf.row_pitch, x_offset, y_offset,
&info->bo_offset,
&info->tile_x_sa, &info->tile_y_sa);
surf_apply_level_layer_offsets(&brw->isl_dev, &info->surf, &info->view,
&info->bo_offset,
&info->tile_x_sa, &info->tile_y_sa);
}
@ -345,18 +374,8 @@ brw_blorp_emit_surface_state(struct brw_context *brw,
struct isl_surf surf = surface->surf;
/* Stomp surface dimensions and tiling (if needed) with info from blorp */
surf.dim = ISL_SURF_DIM_2D;
surf.dim_layout = ISL_DIM_LAYOUT_GEN4_2D;
surf.logical_level0_px.width = surface->width;
surf.logical_level0_px.height = surface->height;
surf.logical_level0_px.depth = 1;
surf.logical_level0_px.array_len = 1;
surf.levels = 1;
/* Alignment doesn't matter since we have 1 miplevel and 1 array slice so
* just pick something that works for everybody.
*/
surf.image_alignment_el = isl_extent3d(4, 4, 1);
if (brw->gen == 6 && surf.samples > 1) {
/* Since gen6 uses INTEL_MSAA_LAYOUT_IMS, width and height are measured
@ -367,14 +386,6 @@ brw_blorp_emit_surface_state(struct brw_context *brw,
surf.logical_level0_px.height /= 2;
}
if (brw->gen == 6 && surf.image_alignment_el.height > 4) {
/* This can happen on stencil buffers on Sandy Bridge due to the
* single-LOD work-around. It's fairly harmless as long as we don't
* pass a bogus value into isl_surf_fill_state().
*/
surf.image_alignment_el = isl_extent3d(4, 2, 1);
}
union isl_color_value clear_color = { .u32 = { 0, 0, 0, 0 } };
const struct isl_surf *aux_surf = NULL;