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iris: Support parameter queries for main planes

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In order to return correct offsets, strides and possibly other
parameters. This is relevant for formats like NV12 and P010 where
the second plane, when produced by the Intel VAAPI decoder, uses the
same FD like the first one, but with an offset.

Right now there are only two modifiers with well defined indices
of auxiliary planes for semi-planar formats according to the local
copy of drm_fourcc.h, `I915_FORMAT_MOD_Y_TILED_GEN12_MC_CCS` and
`I915_FORMAT_MOD_4_TILED_MTL_MC_CCS`, sharing the same layout.
Assume that future `MC_CCS` modifiers will get defined accordingly
for now.

Cc: mesa-stable
Tested-by: Nanley Chery <nanley.g.chery@intel.com>
Reviewed-by: Nanley Chery <nanley.g.chery@intel.com>
Closes: https://gitlab.freedesktop.org/mesa/mesa/-/issues/9952
Part-of: <https://gitlab.freedesktop.org/mesa/mesa/-/merge_requests/25603>
This commit is contained in:
Robert Mader 2023-10-07 19:45:03 +02:00 • committed by Marge Bot
parent 2be404f557
commit 7a7e577d8e
1 changed files with 42 additions and 3 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

45
src/gallium/drivers/iris/iris_resource.c
View file

@ -1434,6 +1434,19 @@ mod_plane_is_clear_color(uint64_t modifier, uint32_t plane)
}
}
static struct iris_resource *
get_resource_for_plane(struct pipe_resource *resource,
unsigned plane)
{
unsigned count = 0;
for (struct pipe_resource *cur = resource; cur; cur = cur->next) {
if (count++ == plane)
return (struct iris_resource *)cur;
}
return NULL;
}
static unsigned
get_num_planes(const struct pipe_resource *resource)
{
@ -1444,6 +1457,27 @@ get_num_planes(const struct pipe_resource *resource)
return count;
}
static unsigned
get_main_plane_for_plane(enum pipe_format format,
const struct isl_drm_modifier_info *mod_info,
unsigned plane)
{
unsigned int n_planes = util_format_get_num_planes(format);
if (n_planes == 1)
return 0;
if (!mod_info)
return plane;
if (mod_info->supports_media_compression) {
return plane % n_planes;
} else {
assert(!mod_info->supports_render_compression);
return plane;
}
}
static struct pipe_resource *
iris_resource_from_handle(struct pipe_screen *pscreen,
const struct pipe_resource *templ,
@ -1791,10 +1825,15 @@ iris_resource_get_param(struct pipe_screen *pscreen,
uint64_t *value)
{
struct iris_screen *screen = (struct iris_screen *)pscreen;
struct iris_resource *res = (struct iris_resource *)resource;
struct iris_resource *base_res = (struct iris_resource *)resource;
unsigned main_plane = get_main_plane_for_plane(base_res->external_format,
base_res->mod_info, plane);
struct iris_resource *res = get_resource_for_plane(resource, main_plane);
assert(res);
bool mod_with_aux =
res->mod_info && isl_drm_modifier_has_aux(res->mod_info->modifier);
bool wants_aux = mod_with_aux && plane > 0;
bool wants_aux = mod_with_aux && plane != main_plane;
bool wants_cc = mod_with_aux &&
mod_plane_is_clear_color(res->mod_info->modifier, plane);
bool result;
@ -1835,7 +1874,7 @@ iris_resource_get_param(struct pipe_screen *pscreen,
return true;
case PIPE_RESOURCE_PARAM_OFFSET:
*value = wants_cc ? res->aux.clear_color_offset :
wants_aux ? res->aux.offset : 0;
wants_aux ? res->aux.offset : res->offset;
return true;
case PIPE_RESOURCE_PARAM_MODIFIER:
*value = res->mod_info ? res->mod_info->modifier :