/* Helper function of si_flush_depth_texture: decompress the given levels
* of Z and/or S planes in place.
*/
static void
si_blit_decompress_zs_in_place(struct si_context *sctx,
struct r600_texture *texture,
unsigned levels_z, unsigned levels_s,
unsigned first_layer, unsigned last_layer)
{
unsigned both = levels_z & levels_s;
/* First, do combined Z & S decompresses for levels that need it. */
if (both) {
si_blit_decompress_zs_planes_in_place(
sctx, texture, PIPE_MASK_Z | PIPE_MASK_S,
both,
first_layer, last_layer);
levels_z &= ~both;
levels_s &= ~both;
}
/* Now do separate Z and S decompresses. */
if (levels_z) {
si_blit_decompress_zs_planes_in_place(
sctx, texture, PIPE_MASK_Z,
levels_z,
first_layer, last_layer);
}
if (levels_s) {
si_blit_decompress_zs_planes_in_place(
sctx, texture, PIPE_MASK_S,
levels_s,
first_layer, last_layer);
}
}
/* Decompress Z and/or S planes in place, depending on mask.
*/
static void
si_blit_decompress_zs_in_place(struct si_context *sctx,
struct r600_texture *texture,
unsigned planes,
unsigned first_level, unsigned last_level,
unsigned first_layer, unsigned last_layer)
{
unsigned level_mask =
u_bit_consecutive(first_level, last_level - first_level + 1);
unsigned cur_level_mask;
/* First, do combined Z & S decompresses for levels that need it. */
if (planes == (PIPE_MASK_Z | PIPE_MASK_S)) {
cur_level_mask =
level_mask &
texture->dirty_level_mask &
texture->stencil_dirty_level_mask;
si_blit_decompress_zs_planes_in_place(
sctx, texture, PIPE_MASK_Z | PIPE_MASK_S,
cur_level_mask,
first_layer, last_layer);
level_mask &= ~cur_level_mask;
}
/* Now do separate Z and S decompresses. */
if (planes & PIPE_MASK_Z) {
cur_level_mask = level_mask & texture->dirty_level_mask;
si_blit_decompress_zs_planes_in_place(
sctx, texture, PIPE_MASK_Z,
cur_level_mask,
first_layer, last_layer);
level_mask &= ~cur_level_mask;
}
if (planes & PIPE_MASK_S) {
cur_level_mask = level_mask & texture->stencil_dirty_level_mask;
si_blit_decompress_zs_planes_in_place(
sctx, texture, PIPE_MASK_S,
cur_level_mask,
first_layer, last_layer);
}
}
