diff options
| author | Jason Ekstrand <[email protected]> | 2017-05-30 09:42:25 -0700 |
|---|---|---|
| committer | Jason Ekstrand <[email protected]> | 2017-06-01 15:33:58 -0700 |
| commit | d065a9540cb4c4f064f695194e35c8c1c3d2b419 (patch) | |
| tree | 248dee0844031b54d8e057cef44530cbbe59eb1b /src/intel/isl | |
| parent | b178762d051bad0f373631908b8ce7b5e9ba8d05 (diff) | |
intel/isl: Add a helper for getting the byte/tile offset of a subimage
Frequently, get_image_offset_sa is combined with get_intratile_offset_sa
so it makes sense to have a single helper to do both. If the caller
doesn't want the intratile offsets, it can simply pass NULL and ISL will
assert that they are 0.
Reviewed-by: Topi Pohjolainen <[email protected]>
Diffstat (limited to 'src/intel/isl')
| -rw-r--r-- | src/intel/isl/isl.c | 39 | ||||
| -rw-r--r-- | src/intel/isl/isl.h | 21 |
2 files changed, 60 insertions, 0 deletions
diff --git a/src/intel/isl/isl.c b/src/intel/isl/isl.c index fb4e170bfc0..60a594394b9 100644 --- a/src/intel/isl/isl.c +++ b/src/intel/isl/isl.c @@ -2146,6 +2146,45 @@ isl_surf_get_image_offset_el(const struct isl_surf *surf, } void +isl_surf_get_image_offset_B_tile_sa(const struct isl_surf *surf, + uint32_t level, + uint32_t logical_array_layer, + uint32_t logical_z_offset_px, + uint32_t *offset_B, + uint32_t *x_offset_sa, + uint32_t *y_offset_sa) +{ + const struct isl_format_layout *fmtl = isl_format_get_layout(surf->format); + + uint32_t total_x_offset_el, total_y_offset_el; + isl_surf_get_image_offset_el(surf, level, logical_array_layer, + logical_z_offset_px, + &total_x_offset_el, + &total_y_offset_el); + + uint32_t x_offset_el, y_offset_el; + isl_tiling_get_intratile_offset_el(surf->tiling, fmtl->bpb, + surf->row_pitch, + total_x_offset_el, + total_y_offset_el, + offset_B, + &x_offset_el, + &y_offset_el); + + if (x_offset_sa) { + *x_offset_sa = x_offset_el * fmtl->bw; + } else { + assert(x_offset_el == 0); + } + + if (y_offset_sa) { + *y_offset_sa = y_offset_el * fmtl->bh; + } else { + assert(y_offset_el == 0); + } +} + +void isl_tiling_get_intratile_offset_el(enum isl_tiling tiling, uint32_t bpb, uint32_t row_pitch, diff --git a/src/intel/isl/isl.h b/src/intel/isl/isl.h index 8b2d264f8b2..658f67e4ae3 100644 --- a/src/intel/isl/isl.h +++ b/src/intel/isl/isl.h @@ -1590,6 +1590,27 @@ isl_surf_get_image_offset_el(const struct isl_surf *surf, uint32_t *y_offset_el); /** + * Calculate the offset, in bytes and intratile surface samples, to a + * subimage in the surface. + * + * This is equivalent to calling isl_surf_get_image_offset_el, passing the + * result to isl_tiling_get_intratile_offset_el, and converting the tile + * offsets to samples. + * + * @invariant level < surface levels + * @invariant logical_array_layer < logical array length of surface + * @invariant logical_z_offset_px < logical depth of surface at level + */ +void +isl_surf_get_image_offset_B_tile_sa(const struct isl_surf *surf, + uint32_t level, + uint32_t logical_array_layer, + uint32_t logical_z_offset_px, + uint32_t *offset_B, + uint32_t *x_offset_sa, + uint32_t *y_offset_sa); + +/** * @brief Calculate the intratile offsets to a surface. * * In @a base_address_offset return the offset from the base of the surface to |