static bool
tex_alloc_bos(struct ilo_texture *tex,
const struct winsys_handle *handle)
{
struct ilo_screen *is = ilo_screen(tex->base.screen);
if (handle) {
if (!tex_import_handle(tex, handle))
return false;
} else {
if (!tex_create_bo(tex))
return false;
}
/* allocate separate stencil resource */
if (tex->layout.separate_stencil && !tex_create_separate_stencil(tex))
return false;
switch (tex->layout.aux) {
case ILO_LAYOUT_AUX_HIZ:
if (!tex_create_hiz(tex)) {
/* Separate Stencil Buffer requires HiZ to be enabled */
if (ilo_dev_gen(&is->dev) == ILO_GEN(6) &&
tex->layout.separate_stencil)
return false;
}
break;
case ILO_LAYOUT_AUX_MCS:
if (!tex_create_mcs(tex))
return false;
break;
default:
break;
}
return true;
}
static struct pipe_resource *
tex_create(struct pipe_screen *screen,
const struct pipe_resource *templ,
const struct winsys_handle *handle)
{
struct tex_layout layout;
struct ilo_texture *tex;
tex = CALLOC_STRUCT(ilo_texture);
if (!tex)
return NULL;
tex->base = *templ;
tex->base.screen = screen;
pipe_reference_init(&tex->base.reference, 1);
if (!tex_alloc_slices(tex)) {
FREE(tex);
return NULL;
}
tex->imported = (handle != NULL);
if (tex->base.bind & (PIPE_BIND_DEPTH_STENCIL |
PIPE_BIND_RENDER_TARGET))
tex->bo_flags |= INTEL_ALLOC_FOR_RENDER;
tex_layout_init(&layout, screen, templ, tex->slices);
switch (templ->target) {
case PIPE_TEXTURE_1D:
case PIPE_TEXTURE_2D:
case PIPE_TEXTURE_CUBE:
case PIPE_TEXTURE_RECT:
case PIPE_TEXTURE_1D_ARRAY:
case PIPE_TEXTURE_2D_ARRAY:
case PIPE_TEXTURE_CUBE_ARRAY:
tex_layout_2d(&layout);
break;
case PIPE_TEXTURE_3D:
tex_layout_3d(&layout);
break;
default:
assert(!"unknown resource target");
break;
}
tex_layout_validate(&layout);
/* make sure the bo can be mapped through GTT if tiled */
if (layout.tiling != INTEL_TILING_NONE) {
/*
* Usually only the first 256MB of the GTT is mappable.
*
* See also how intel_context::max_gtt_map_object_size is calculated.
*/
const size_t mappable_gtt_size = 256 * 1024 * 1024;
const size_t size = tex_layout_estimate_size(&layout);
/* be conservative */
if (size > mappable_gtt_size / 4)
tex_layout_force_linear(&layout);
}
tex_layout_apply(&layout, tex);
if (!tex_create_bo(tex, handle)) {
tex_free_slices(tex);
FREE(tex);
return NULL;
}
/* allocate separate stencil resource */
if (layout.separate_stencil && !tex_create_separate_stencil(tex)) {
tex_destroy(tex);
return NULL;
}
if (layout.hiz && !tex_create_hiz(tex, &layout)) {
/* Separate Stencil Buffer requires HiZ to be enabled */
if (layout.dev->gen == ILO_GEN(6) && layout.separate_stencil) {
tex_destroy(tex);
return NULL;
}
}
return &tex->base;
}