/* Helper for decompressing a portion of a color or depth resource before
* blitting if any decompression is needed.
* The driver doesn't decompress resources automatically while u_blitter is
* rendering. */
static bool r600_decompress_subresource(struct pipe_context *ctx,
struct pipe_resource *tex,
unsigned level,
unsigned first_layer, unsigned last_layer)
{
struct r600_context *rctx = (struct r600_context *)ctx;
struct r600_texture *rtex = (struct r600_texture*)tex;
if (rtex->is_depth && !rtex->is_flushing_texture) {
if (rctx->b.chip_class >= EVERGREEN ||
r600_can_read_depth(rtex)) {
r600_blit_decompress_depth_in_place(rctx, rtex, false,
level, level,
first_layer, last_layer);
if (rtex->surface.flags & RADEON_SURF_SBUFFER) {
r600_blit_decompress_depth_in_place(rctx, rtex, true,
level, level,
first_layer, last_layer);
}
} else {
if (!r600_init_flushed_depth_texture(ctx, tex, NULL))
return false; /* error */
r600_blit_decompress_depth(ctx, rtex, NULL,
level, level,
first_layer, last_layer,
0, u_max_sample(tex));
}
} else if (rtex->cmask.size) {
r600_blit_decompress_color(ctx, rtex, level, level,
first_layer, last_layer);
}
return true;
}
void r600_decompress_depth_textures(struct r600_context *rctx,
struct r600_samplerview_state *textures)
{
unsigned i;
unsigned depth_texture_mask = textures->compressed_depthtex_mask;
while (depth_texture_mask) {
struct pipe_sampler_view *view;
struct r600_texture *tex;
i = u_bit_scan(&depth_texture_mask);
view = &textures->views[i]->base;
assert(view);
tex = (struct r600_texture *)view->texture;
assert(tex->is_depth && !tex->is_flushing_texture);
if (rctx->b.chip_class >= EVERGREEN ||
r600_can_read_depth(tex)) {
r600_blit_decompress_depth_in_place(rctx, tex,
view->u.tex.first_level, view->u.tex.last_level,
0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
} else {
r600_blit_decompress_depth(&rctx->b.b, tex, NULL,
view->u.tex.first_level, view->u.tex.last_level,
0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level),
0, u_max_sample(&tex->resource.b.b));
}
}
}
void r600_decompress_depth_textures(struct r600_context *rctx,
struct r600_samplerview_state *textures)
{
unsigned i;
unsigned depth_texture_mask = textures->compressed_depthtex_mask;
while (depth_texture_mask) {
struct pipe_sampler_view *view;
struct r600_pipe_sampler_view *rview;
struct r600_texture *tex;
i = u_bit_scan(&depth_texture_mask);
view = &textures->views[i]->base;
assert(view);
rview = (struct r600_pipe_sampler_view*)view;
tex = (struct r600_texture *)view->texture;
assert(tex->db_compatible);
if (r600_can_sample_zs(tex, rview->is_stencil_sampler)) {
r600_blit_decompress_depth_in_place(rctx, tex,
rview->is_stencil_sampler,
view->u.tex.first_level, view->u.tex.last_level,
0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level));
} else {
r600_blit_decompress_depth(&rctx->b.b, tex, NULL,
view->u.tex.first_level, view->u.tex.last_level,
0, util_max_layer(&tex->resource.b.b, view->u.tex.first_level),
0, u_max_sample(&tex->resource.b.b));
}
}
}
