Handle all cases in calculation of layers count for isl_view
taking into account texture view and image unit.
st_convert_image was taken as a reference.
When u->Layered is true the whole level is taken with respect to
image view. In other case only one layer is taken.
v3: (Józef Kucia and Ilia Mirkin)
- Rewrote patch by taking st_convert_image as a reference
- Removed now unused get_image_num_layers function
- Changed commit message
v4: (Jason Ekstrand)
- Added assert
Fixes: 5a8c8903
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=107856
Signed-off-by: Danylo Piliaiev <danylo.pilia...@globallogic.com>
Reviewed-by: Jason Ekstrand <ja...@jlekstrand.net>
---
.../drivers/dri/i965/brw_wm_surface_state.c | 33 ++++++++++---------
1 file changed, 18 insertions(+), 15 deletions(-)
diff --git a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
index 8d21cf5fa7..3286c222e5 100644
--- a/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
+++ b/src/mesa/drivers/dri/i965/brw_wm_surface_state.c
@@ -1499,18 +1499,6 @@ update_buffer_image_param(struct brw_context *brw,
param->stride[0] = _mesa_get_format_bytes(u->_ActualFormat);
}
-static unsigned
-get_image_num_layers(const struct intel_mipmap_tree *mt, GLenum target,
- unsigned level)
-{
- if (target == GL_TEXTURE_CUBE_MAP)
- return 6;
-
- return target == GL_TEXTURE_3D ?
- minify(mt->surf.logical_level0_px.depth, level) :
- mt->surf.logical_level0_px.array_len;
-}
-
static void
update_image_surface(struct brw_context *brw,
struct gl_image_unit *u,
@@ -1541,14 +1529,29 @@ update_image_surface(struct brw_context *brw,
} else {
struct intel_texture_object *intel_obj = intel_texture_object(obj);
struct intel_mipmap_tree *mt = intel_obj->mt;
- const unsigned num_layers = u->Layered ?
- get_image_num_layers(mt, obj->Target, u->Level) : 1;
+
+ unsigned base_layer, num_layers;
+ if (u->Layered) {
+ if (obj->Target == GL_TEXTURE_3D) {
+ base_layer = 0;
+ num_layers = minify(mt->surf.logical_level0_px.depth, u->Level);
+ } else {
+ assert(obj->Immutable || obj->MinLayer == 0);
+ base_layer = obj->MinLayer;
+ num_layers = obj->Immutable ?
+ obj->NumLayers :
+ mt->surf.logical_level0_px.array_len;
+ }
+ } else {
+ base_layer = obj->MinLayer + u->_Layer;
+ num_layers = 1;
+ }
struct isl_view view = {
.format = format,
.base_level = obj->MinLevel + u->Level,
.levels = 1,
- .base_array_layer = obj->MinLayer + u->_Layer,
+ .base_array_layer = base_layer,
.array_len = num_layers,
.swizzle = ISL_SWIZZLE_IDENTITY,
.usage = ISL_SURF_USAGE_STORAGE_BIT,
--
2.18.0
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