diff options
Diffstat (limited to 'src/isl')
| -rw-r--r-- | src/isl/isl.c | 37 | ||||
| -rw-r--r-- | src/isl/isl.h | 20 |
2 files changed, 57 insertions, 0 deletions
diff --git a/src/isl/isl.c b/src/isl/isl.c index 65f624ce95e..716ce29fe8e 100644 --- a/src/isl/isl.c +++ b/src/isl/isl.c @@ -1344,3 +1344,40 @@ isl_surf_get_image_offset_el(const struct isl_surf *surf, *x_offset_el = x_offset_sa / fmtl->bw; *y_offset_el = y_offset_sa / fmtl->bh; } + +void +isl_surf_get_image_intratile_offset_el(const struct isl_device *dev, + const struct isl_surf *surf, + uint32_t level, + uint32_t logical_array_layer, + uint32_t logical_z_offset, + uint32_t *base_address_offset, + uint32_t *x_offset_el, + uint32_t *y_offset_el) +{ + const struct isl_format_layout *fmtl = isl_format_get_layout(surf->format); + + struct isl_tile_info tile_info; + isl_surf_get_tile_info(dev, surf, &tile_info); + + uint32_t total_x_offset_el; + uint32_t total_y_offset_el; + isl_surf_get_image_offset_el(surf, level, + logical_array_layer, + logical_z_offset, + &total_x_offset_el, + &total_y_offset_el); + + uint32_t small_y_offset_el = total_y_offset_el % tile_info.height; + uint32_t big_y_offset_el = total_y_offset_el - small_y_offset_el; + uint32_t big_y_offset_B = big_y_offset_el * surf->row_pitch; + + uint32_t total_x_offset_B = total_x_offset_el * fmtl->bs; + uint32_t small_x_offset_B = total_x_offset_B % tile_info.width; + uint32_t small_x_offset_el = small_x_offset_B / fmtl->bs; + uint32_t big_x_offset_B = total_x_offset_B - small_x_offset_B; + + *base_address_offset = big_y_offset_B + big_x_offset_B; + *x_offset_el = small_x_offset_el; + *y_offset_el = small_y_offset_el; +} diff --git a/src/isl/isl.h b/src/isl/isl.h index 392aaf7e9c5..bc7a315e8ae 100644 --- a/src/isl/isl.h +++ b/src/isl/isl.h @@ -990,6 +990,26 @@ isl_surf_get_image_offset_el(const struct isl_surf *surf, uint32_t *x_offset_el, uint32_t *y_offset_el); +/** + * @brief Calculate the intratile offsets to a subimage in the surface. + * + * In @a base_address_offset return the offset from the base of the surface to + * the base address of the first tile of the subimage. In @a x_offset_el and + * @a y_offset_el, return the offset, in units of surface elements, from the + * tile's base to the subimage's first surface element. The x and y offsets + * are intratile offsets; that is, they do not exceed the boundary of the + * surface's tiling format. + */ +void +isl_surf_get_image_intratile_offset_el(const struct isl_device *dev, + const struct isl_surf *surf, + uint32_t level, + uint32_t logical_array_layer, + uint32_t logical_z_offset, + uint32_t *base_address_offset, + uint32_t *x_offset_el, + uint32_t *y_offset_el); + #ifdef __cplusplus } #endif |