enricobuehler
4c3b11445c
Phase 0 of design/pyrowave-codec-plan.md — the opt-in wired-LAN ultra-low- latency codec. Vendored at upstream 509e4f88 (API 0.4.0, Granite 44362775, volk + vulkan-headers pins in PUNKTFUNK-VENDOR.txt), pruned to the 6.6 MB the standalone no-renderer build needs; scripts/vendor-pyrowave.sh reproduces the tree (a pin bump is protocol-affecting, plan §4.2). build.rs drives the wrapper CMakeLists (static archives incl. a static C-API lib upstream only ships shared) + bindgen over pyrowave.h; Linux and Windows only, empty stub elsewhere (Apple gets a native Metal port, §4.7). Offline-safe by construction: no network, no system lib, vendored Vulkan headers — same model as the opus dep (flatpak builder has no network). Phase-0 validation on .21 (RTX 5070 Ti, driver 610.43.03): - upstream pyrowave-c-test + interop test (incl. dmabuf/DRM-modifier Vulkan<->Vulkan) pass, from the pristine AND the pruned tree - GPU kernel times at ~1.6 bpp noise: encode/decode 0.090/0.042 ms @800p, 0.146/0.067 @1080p, 0.226/0.103 @1440p, 0.477/0.201 @4K — order of magnitude under NVENC's 1-2 ms retrieve, CBR lands within ~100 B of target - cargo test -p pyrowave-sys green (static link + API-version pin check) Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
93 lines
2.8 KiB
C++
93 lines
2.8 KiB
C++
/* Copyright (c) 2017-2026 Hans-Kristian Arntzen
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#pragma once
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#include "fs-netfs.hpp"
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#include "network.hpp"
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#include "../filesystem.hpp"
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#include "netfs.hpp"
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#include <unordered_map>
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#include <future>
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#include <thread>
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namespace Granite
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{
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struct FSReader;
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class NetworkFile : public File
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{
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public:
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static NetworkFile *open(Looper &looper, const std::string &path, FileMode mode);
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~NetworkFile();
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void *map() override;
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void *map_write(size_t size) override;
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void unmap() override;
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size_t get_size() override;
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bool reopen() override;
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private:
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NetworkFile() = default;
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bool init(Looper &looper, const std::string &path, FileMode mode);
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std::string path;
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FileMode mode;
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Looper *looper = nullptr;
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std::future<std::vector<uint8_t>> future;
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std::vector<uint8_t> buffer;
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bool has_buffer = false;
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bool need_flush = false;
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};
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struct FSNotifyCommand;
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class NetworkFilesystem : public FilesystemBackend
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{
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public:
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NetworkFilesystem();
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~NetworkFilesystem();
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std::vector<ListEntry> list(const std::string &path) override;
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std::unique_ptr<File> open(const std::string &path, FileMode mode) override;
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bool stat(const std::string &path, FileStat &stat) override;
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FileNotifyHandle install_notification(const std::string &path, std::function<void (const FileNotifyInfo &)> func) override;
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void uninstall_notification(FileNotifyHandle handle) override;
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void poll_notifications() override;
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int get_notification_fd() const override
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{
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return -1;
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}
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private:
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std::thread looper_thread;
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Looper looper;
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void looper_entry();
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FSNotifyCommand *notify = nullptr;
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std::unordered_map<FileNotifyHandle, std::function<void (const FileNotifyInfo &)>> handlers;
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std::mutex lock;
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std::vector<FileNotifyInfo> pending;
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void setup_notification();
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void signal_notification(const FileNotifyInfo &info);
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};
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}
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