feat(host): vendor PyroWave + minimal Granite subset as crates/pyrowave-sys

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>
2026-07-15 00:35:10 +02:00
parent 1b73361372
commit 4c3b11445c
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+/* Copyright (c) 2017-2026 Hans-Kristian Arntzen
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * "Software"), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "android.hpp"
+#include "path_utils.hpp"
+#include "logging.hpp"
+#include <algorithm>
+#include <stdexcept>
+
+namespace Granite
+{
+bool AssetFile::init(AAssetManager *mgr, const std::string &path, FileMode mode)
+{
+	if (mode != FileMode::ReadOnly)
+	{
+		LOGE("Asset files must be opened read-only.\n");
+		return false;
+	}
+
+	asset = AAssetManager_open(mgr, path.c_str(), AASSET_MODE_BUFFER);
+	if (!asset)
+		return false;
+
+	size = AAsset_getLength64(asset);
+	return true;
+}
+
+FileHandle AssetFile::open(AAssetManager *mgr, const std::string &path, Granite::FileMode mode)
+{
+	auto file = Util::make_handle<AssetFile>();
+	if (!file->init(mgr, path, mode))
+		file.reset();
+	return file;
+}
+
+FileMappingHandle AssetFile::map_subset(uint64_t offset, size_t range)
+{
+	if (offset + range > size)
+		return {};
+
+	auto *data = static_cast<uint8_t *>(const_cast<void *>(AAsset_getBuffer(asset)));
+	if (!data)
+		return {};
+
+	return Util::make_handle<FileMapping>(
+			reference_from_this(), offset,
+			data + offset, range,
+			0, range);
+}
+
+uint64_t AssetFile::get_size()
+{
+	return size;
+}
+
+FileMappingHandle AssetFile::map_write(size_t)
+{
+	return {};
+}
+
+void AssetFile::unmap(void *, size_t)
+{
+}
+
+AssetFile::~AssetFile()
+{
+	if (asset)
+		AAsset_close(asset);
+}
+
+AssetManagerFilesystem::AssetManagerFilesystem(const std::string &base_)
+	: base(base_), mgr(global_asset_manager)
+{
+}
+
+FileHandle AssetManagerFilesystem::open(const std::string &path, FileMode mode)
+{
+	return AssetFile::open(mgr, Path::join(base, Path::canonicalize_path(path)), mode);
+}
+
+int AssetManagerFilesystem::get_notification_fd() const
+{
+	return -1;
+}
+
+void AssetManagerFilesystem::poll_notifications()
+{
+}
+
+void AssetManagerFilesystem::uninstall_notification(FileNotifyHandle)
+{
+}
+
+FileNotifyHandle AssetManagerFilesystem::install_notification(const std::string &,
+                                                              std::function<void (const FileNotifyInfo &)>)
+{
+	return -1;
+}
+
+std::vector<ListEntry> AssetManagerFilesystem::list(const std::string &path)
+{
+	auto directory = Path::join(base, Path::canonicalize_path(path));
+	auto *dir = AAssetManager_openDir(mgr, directory.c_str());
+
+	if (!dir)
+		return {};
+
+	std::vector<ListEntry> entries;
+
+	const char *entry;
+	while ((entry = AAssetDir_getNextFileName(dir)))
+	{
+		PathType type = PathType::File;
+		entries.push_back({ entry, type });
+	}
+
+	AAssetDir_close(dir);
+	return entries;
+}
+
+bool AssetManagerFilesystem::stat(const std::string &path, FileStat &stat)
+{
+	auto resolved_path = Path::join(base, Path::canonicalize_path(path));
+
+	auto *asset = AAssetManager_open(mgr, resolved_path.c_str(), AASSET_MODE_UNKNOWN);
+	if (!asset)
+		return false;
+
+	stat.size = AAsset_getLength(asset);
+	stat.type = PathType::File;
+	stat.last_modified = 0;
+	AAsset_close(asset);
+	return true;
+}
+
+AAssetManager *AssetManagerFilesystem::global_asset_manager;
+}