Files
ToastconcernandClaude Opus 5.5 6d0b4fcd2f v0.2.0: splats, copy/paste, faster homes, seat facing, and a full bug sweep
Frame Studio
- Gaussian splats (PLY, SPZ v2-v4), PLY vertex colours, panorama skies
- Copy, cut, paste and duplicate for objects, splats and world items
- Walkable-area rebake moved off the UI thread; viewport one frame sooner;
  refresh-locked pacing (FS_PACE=timer for the old one)
- Fixed: bundle thumbnail use-after-free crash, auto-save deleting
  environments, saves into scratch copies, edits lost on non-ASCII paths,
  unopenable manifests with inf/nan, bundle save data loss, opening a home
  marking it changed, gizmo NaN, long paths, many malformed-file crashes
- Updater verifies sha256, journals the swap and never leaves the exe missing

Frame Home
- Seats turn you to face their way
- Draw batching (Hand Tutorials up to ~20% less GPU time), cut-out EQUAL pass,
  late head-pose read before submit
- Proper queue-family hand-over to the compositor layer; layer descriptor
  generations and seqlocked slots; structural SPIR-V check
- Fixed: hangs/crashes on damaged .fenv files and shaders, render-pass
  validation error, sync hazard in the foveation smoothing pass, unverified
  update downloads, half-done installs

Tests: tests_loco/env_share/spv_check wired into CMake (FRAME_TESTS) and CI.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01VsaXGU27gsrXjDoFtyFJP9
2026-10-25 13:15:07 -05:00

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// Copyright (c) 2018 Google LLC.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#ifndef SOURCE_OPT_LOOP_FISSION_H_
#define SOURCE_OPT_LOOP_FISSION_H_
#include <algorithm>
#include <cstdint>
#include <map>
#include <utility>
#include <vector>
#include "source/opt/cfg.h"
#include "source/opt/loop_dependence.h"
#include "source/opt/loop_utils.h"
#include "source/opt/module.h"
#include "source/opt/pass.h"
#include "source/opt/tree_iterator.h"
namespace spvtools {
namespace opt {
class LoopFissionPass : public Pass {
public:
// Function used to determine if a given loop should be split. Takes register
// pressure region for that loop as a parameter and returns true if the loop
// should be split.
using FissionCriteriaFunction =
std::function<bool(const RegisterLiveness::RegionRegisterLiveness&)>;
// Pass built with this constructor will split all loops regardless of
// register pressure. Will not split loops more than once.
LoopFissionPass();
// Split the loop if the number of registers used in the loop exceeds
// |register_threshold_to_split|. |split_multiple_times| flag determines
// whether or not the pass should split loops after already splitting them
// once.
LoopFissionPass(size_t register_threshold_to_split,
bool split_multiple_times = true);
// Split loops whose register pressure meets the criteria of |functor|.
LoopFissionPass(FissionCriteriaFunction functor,
bool split_multiple_times = true)
: split_criteria_(functor), split_multiple_times_(split_multiple_times) {}
const char* name() const override { return "loop-fission"; }
Pass::Status Process() override;
// Checks if |loop| meets the register pressure criteria to be split.
bool ShouldSplitLoop(const Loop& loop, IRContext* context);
private:
// Functor to run in ShouldSplitLoop to determine if the register pressure
// criteria is met for splitting the loop.
FissionCriteriaFunction split_criteria_;
// Flag designating whether or not we should also split the result of
// previously split loops if they meet the register presure criteria.
bool split_multiple_times_;
};
} // namespace opt
} // namespace spvtools
#endif // SOURCE_OPT_LOOP_FISSION_H_