Signed-off-by: Topi Pohjolainen <topi.pohjolai...@intel.com>
---
src/mesa/drivers/dri/i965/intel_mipmap_tree.c | 91 +++++++++++++++++++++++++++
1 file changed, 91 insertions(+)
diff --git a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
index 4ddcb13..ced1e0e 100644
--- a/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
+++ b/src/mesa/drivers/dri/i965/intel_mipmap_tree.c
@@ -575,6 +575,97 @@ intel_lower_compressed_format(struct brw_context *brw,
mesa_format format)
}
}
+static bool
+init_mapping_table(GLenum target, unsigned first_level, unsigned last_level,
+ unsigned depth0, struct intel_mipmap_level *table)
+{
+ unsigned level = first_level;
+ for ( ; level <= last_level; level++) {
+ const unsigned d = target == GL_TEXTURE_3D ? depth0 >> level : depth0;
+
+ table[level].slice = calloc(d, sizeof(*table[0].slice));
+ if (!table[level].slice)
+ goto fail;
+ }
+
+ return true;
+
+fail:
+ for (unsigned i = first_level; i < level; i++)
+ free(table[level].slice);
+
+ return false;
+}
+
+static struct intel_mipmap_tree *
+make_surface(struct brw_context *brw, GLenum target, mesa_format format,
+ unsigned first_level, unsigned last_level,
+ unsigned width0, unsigned height0, unsigned depth0,
+ unsigned num_samples, enum isl_tiling isl_tiling,
+ isl_surf_usage_flags_t isl_usage_flags, uint32_t alloc_flags)
+{
+ struct intel_mipmap_tree *mt = calloc(sizeof(*mt), 1);
+ if (!mt)
+ return NULL;
+
+ if (target == GL_TEXTURE_CUBE_MAP ||
+ target == GL_TEXTURE_CUBE_MAP_ARRAY)
+ isl_usage_flags |= ISL_SURF_USAGE_CUBE_BIT;
+
+ DBG("%s: %s %s %ux %u:%u:%u %d..%d <-- %p\n",
+ __func__,
+ _mesa_enum_to_string(target),
+ _mesa_get_format_name(format),
+ num_samples, width0, height0, depth0,
+ first_level, last_level, mt);
+
+ if (!init_mapping_table(target, first_level, last_level, depth0,
+ mt->level))
+ goto fail;
+
+ struct isl_surf_init_info init_info = {
+ .dim = get_isl_surf_dim(target),
+ .format = translate_tex_format(brw, format, false),
+ .width = width0,
+ .height = height0,
+ .depth = target == GL_TEXTURE_3D ? depth0 : 1,
+ .levels = last_level + 1,
+ .array_len = target == GL_TEXTURE_3D ? 1 : depth0,
+ .samples = MAX2(num_samples, 1),
+ .usage = isl_usage_flags,
+ .tiling_flags = 1u << isl_tiling
+ };
+
+ if (!isl_surf_init_s(&brw->isl_dev, &mt->surf, &init_info))
+ goto fail;
+
+ assert(mt->surf.size % mt->surf.row_pitch == 0);
+
+ unsigned pitch = mt->surf.row_pitch;
+ mt->bo = brw_bo_alloc_tiled(brw->bufmgr, "isl-miptree",
+ mt->surf.row_pitch,
+ mt->surf.size / mt->surf.row_pitch,
+ 1, isl_tiling_to_bufmgr_tiling(isl_tiling),
+ &pitch, alloc_flags);
+ if (!mt->bo)
+ goto fail;
+
+ assert(pitch == mt->surf.row_pitch);
+
+ mt->target = target;
+ mt->format = format;
+ mt->refcount = 1;
+
+ exec_list_make_empty(&mt->hiz_map);
+ exec_list_make_empty(&mt->color_resolve_map);
+
+ return mt;
+
+fail:
+ free(mt);
+ return NULL;
+}
+
static struct intel_mipmap_tree *
miptree_create(struct brw_context *brw,
GLenum target,
--
2.9.3
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