2026-09-15 19:47:11

Signed-off-by: lizzie <lizzie@eden-emu.dev>

src/common/CMakeLists.txt

@@ -76,6 +76,7 @@ add_library(
     logging.h
     lz4_compression.cpp
     lz4_compression.h
+    make_unique_for_overwrite.h
     math_util.h
     memory_detect.cpp
     memory_detect.h
@@ -114,8 +115,6 @@ add_library(
     stb.h
     steady_clock.cpp
     steady_clock.h
-    stream.cpp
-    stream.h
     string_util.cpp
     string_util.h
     swap.h

src/common/make_unique_for_overwrite.h

@@ -0,0 +1,27 @@
+// SPDX-FileCopyrightText: Copyright 2022 yuzu Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#pragma once
+
+#include <memory>
+#include <type_traits>
+
+namespace Common {
+
+template <class T>
+    requires(!std::is_array_v<T>)
+std::unique_ptr<T> make_unique_for_overwrite() {
+    return std::unique_ptr<T>(new T);
+}
+
+template <class T>
+    requires std::is_unbounded_array_v<T>
+std::unique_ptr<T> make_unique_for_overwrite(std::size_t n) {
+    return std::unique_ptr<T>(new std::remove_extent_t<T>[n]);
+}
+
+template <class T, class... Args>
+    requires std::is_bounded_array_v<T>
+void make_unique_for_overwrite(Args&&...) = delete;
+
+} // namespace Common

src/common/scratch_buffer.h

@@ -8,7 +8,8 @@
 
 #include <iterator>
 #include <cstring>
-#include <memory>
+
+#include "common/make_unique_for_overwrite.h"
 
 namespace Common {
 
@@ -37,9 +38,8 @@ public:
     ScratchBuffer() = default;
 
     explicit ScratchBuffer(size_type initial_capacity)
-        : last_requested_size{initial_capacity}
-        , buffer_capacity{initial_capacity}
-        , buffer{std::make_unique_for_overwrite<T[]>(initial_capacity)} {}
+        : last_requested_size{initial_capacity}, buffer_capacity{initial_capacity},
+          buffer{Common::make_unique_for_overwrite<T[]>(initial_capacity)} {}
 
     ~ScratchBuffer() = default;
     ScratchBuffer(const ScratchBuffer&) = delete;
@@ -64,7 +64,7 @@ public:
     /// The previously held data will remain intact.
     void resize(size_type size) {
         if (size > buffer_capacity) {
-            auto new_buffer = std::make_unique_for_overwrite<T[]>(size);
+            auto new_buffer = Common::make_unique_for_overwrite<T[]>(size);
             std::memcpy(new_buffer.get(), buffer.get(), buffer_capacity * sizeof(T));
             buffer = std::move(new_buffer);
             buffer_capacity = size;
@@ -77,7 +77,7 @@ public:
     void resize_destructive(size_type size) {
         if (size > buffer_capacity) {
             buffer_capacity = size;
-            buffer = std::make_unique_for_overwrite<T[]>(buffer_capacity);
+            buffer = Common::make_unique_for_overwrite<T[]>(buffer_capacity);
         }
         last_requested_size = size;
     }

src/common/stream.cpp

@@ -1,46 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#include <stdexcept>
-#include "common/common_types.h"
-#include "common/stream.h"
-
-namespace Common {
-
-Stream::Stream() = default;
-Stream::~Stream() = default;
-
-void Stream::Seek(s32 offset, SeekOrigin origin) {
-    if (origin == SeekOrigin::SetOrigin) {
-        if (offset < 0) {
-            position = 0;
-        } else if (position >= buffer.size()) {
-            position = buffer.size();
-        } else {
-            position = offset;
-        }
-    } else if (origin == SeekOrigin::FromCurrentPos) {
-        Seek(static_cast<s32>(position) + offset, SeekOrigin::SetOrigin);
-    } else if (origin == SeekOrigin::FromEnd) {
-        Seek(static_cast<s32>(buffer.size()) - offset, SeekOrigin::SetOrigin);
-    }
-}
-
-u8 Stream::ReadByte() {
-    if (position < buffer.size()) {
-        return buffer[position++];
-    } else {
-        throw std::out_of_range("Attempting to read a byte not within the buffer range");
-    }
-}
-
-void Stream::WriteByte(u8 byte) {
-    if (position == buffer.size()) {
-        buffer.push_back(byte);
-        position++;
-    } else {
-        buffer.insert(buffer.begin() + position, byte);
-    }
-}
-
-} // namespace Common

src/common/stream.h

@@ -1,55 +0,0 @@
-// SPDX-FileCopyrightText: Copyright 2020 yuzu Emulator Project
-// SPDX-License-Identifier: GPL-2.0-or-later
-
-#pragma once
-
-#include <vector>
-#include "common/common_types.h"
-
-namespace Common {
-
-enum class SeekOrigin {
-    SetOrigin,
-    FromCurrentPos,
-    FromEnd,
-};
-
-class Stream {
-public:
-    /// Stream creates a bitstream and provides common functionality on the stream.
-    explicit Stream();
-    ~Stream();
-
-    Stream(const Stream&) = delete;
-    Stream& operator=(const Stream&) = delete;
-
-    Stream(Stream&&) = default;
-    Stream& operator=(Stream&&) = default;
-
-    /// Reposition bitstream "cursor" to the specified offset from origin
-    void Seek(s32 offset, SeekOrigin origin);
-
-    /// Reads next byte in the stream buffer and increments position
-    u8 ReadByte();
-
-    /// Writes byte at current position
-    void WriteByte(u8 byte);
-
-    [[nodiscard]] std::size_t GetPosition() const {
-        return position;
-    }
-
-    [[nodiscard]] std::vector<u8>& GetBuffer() {
-        return buffer;
-    }
-
-    [[nodiscard]] const std::vector<u8>& GetBuffer() const {
-        return buffer;
-    }
-
-private:
-    std::vector<u8> buffer;
-    std::size_t position{0};
-};
-
-} // namespace Common

src/core/file_sys/vfs/vfs_real.cpp

@@ -109,7 +109,8 @@ VirtualFile RealVfsFilesystem::OpenFileFromEntry(std::string_view path_, std::op
     auto reference = std::make_unique<FileReference>();
     this->InsertReferenceIntoListLocked(*reference);
 
-    auto file = std::make_shared<RealVfsFile>(*this, std::move(reference), path, perms, size, std::move(parent_path));
+    auto file = std::shared_ptr<RealVfsFile>(
+        new RealVfsFile(*this, std::move(reference), path, perms, size, std::move(parent_path)));
     cache[path] = file;
 
     return file;
@@ -176,7 +177,7 @@ bool RealVfsFilesystem::DeleteFile(std::string_view path_) {
 
 VirtualDir RealVfsFilesystem::OpenDirectory(std::string_view path_, OpenMode perms) {
     const auto path = FS::SanitizePath(path_, FS::DirectorySeparator::PlatformDefault);
-    return std::make_shared<RealVfsDirectory>(*this, path, perms);
+    return std::shared_ptr<RealVfsDirectory>(new RealVfsDirectory(*this, path, perms));
 }
 
 VirtualDir RealVfsFilesystem::CreateDirectory(std::string_view path_, OpenMode perms) {
@@ -184,7 +185,7 @@ VirtualDir RealVfsFilesystem::CreateDirectory(std::string_view path_, OpenMode p
     if (!FS::CreateDirs(path)) {
         return nullptr;
     }
-    return std::make_shared<RealVfsDirectory>(*this, path, perms);
+    return std::shared_ptr<RealVfsDirectory>(new RealVfsDirectory(*this, path, perms));
 }
 
 VirtualDir RealVfsFilesystem::CopyDirectory(std::string_view old_path_,

src/core/file_sys/vfs/vfs_real.h

@@ -82,9 +82,6 @@ class RealVfsFile : public VfsFile {
     friend class RealVfsFilesystem;
 
 public:
-    RealVfsFile(RealVfsFilesystem& base, std::unique_ptr<FileReference> reference,
-                const std::string& path, OpenMode perms = OpenMode::Read,
-                std::optional<u64> size = {}, std::optional<std::string> parent_path = {});
     ~RealVfsFile() override;
 
     std::string GetName() const override;
@@ -98,6 +95,9 @@ public:
     bool Rename(std::string_view name) override;
 
 private:
+    RealVfsFile(RealVfsFilesystem& base, std::unique_ptr<FileReference> reference,
+                const std::string& path, OpenMode perms = OpenMode::Read,
+                std::optional<u64> size = {}, std::optional<std::string> parent_path = {});
 
     RealVfsFilesystem& base;
     std::unique_ptr<FileReference> reference;
@@ -113,8 +113,6 @@ class RealVfsDirectory : public VfsDirectory {
     friend class RealVfsFilesystem;
 
 public:
-    RealVfsDirectory(RealVfsFilesystem& base, const std::string& path,
-                     OpenMode perms = OpenMode::Read);
     ~RealVfsDirectory() override;
 
     VirtualFile GetFileRelative(std::string_view relative_path) const override;
@@ -140,6 +138,9 @@ public:
     std::map<std::string, VfsEntryType, std::less<>> GetEntries() const override;
 
 private:
+    RealVfsDirectory(RealVfsFilesystem& base, const std::string& path,
+                     OpenMode perms = OpenMode::Read);
+
     template <typename T, typename R>
     std::vector<std::shared_ptr<R>> IterateEntries() const;
 

src/core/hle/service/psc/ovln/receiver_service.cpp

@@ -1,4 +1,4 @@
-// SPDX-FileCopyrightText: Copyright 2026 Eden Emulator Project
+// SPDX-FileCopyrightText: Copyright 2025 Eden Emulator Project
 // SPDX-License-Identifier: GPL-3.0-or-later
 
 // SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project
@@ -24,7 +24,7 @@ IReceiverService::~IReceiverService() = default;
 
 Result IReceiverService::OpenReceiver(Out<SharedPointer<IReceiver>> out_receiver) {
     LOG_DEBUG(Service_PSC, "called");
-    *out_receiver = std::make_shared<IReceiver>(system);
+    *out_receiver = std::shared_ptr<IReceiver>(new IReceiver(system));
     R_SUCCEED();
 }
 

src/video_core/host1x/codecs/vp9.cpp

@@ -892,20 +892,28 @@ void VpxRangeEncoder::Write(bool bit, s32 probability) {
     count += shift;
 
     if (count >= 0) {
-        const s32 offset = shift - count;
-
-        if (((low_value << (offset - 1)) >> 31) != 0) {
-            const s32 current_pos = static_cast<s32>(base_stream.GetPosition());
-            base_stream.Seek(-1, Common::SeekOrigin::FromCurrentPos);
-            while (PeekByte() == 0xff) {
-                base_stream.WriteByte(0);
-
-                base_stream.Seek(-2, Common::SeekOrigin::FromCurrentPos);
+        auto const write_byte = [&](u8 byte) {
+            if (stream_pos == stream_data.size()) {
+                stream_data.push_back(byte);
+                ++stream_pos;
+            } else {
+                stream_data.insert(stream_data.begin() + stream_pos, byte);
             }
-            base_stream.WriteByte(static_cast<u8>((PeekByte() + 1)));
-            base_stream.Seek(current_pos, Common::SeekOrigin::SetOrigin);
+        };
+
+        const s32 offset = shift - count;
+        if (((low_value << (offset - 1)) >> 31) != 0) {
+            auto const current_pos = stream_pos;
+            --stream_pos;
+            while (stream_data[stream_pos] == 0xff) {
+                write_byte(0);
+                stream_pos -= 2;
+            }
+            write_byte(stream_data[stream_pos] + 1);
+            stream_pos = current_pos;
         }
-        base_stream.WriteByte(static_cast<u8>((low_value >> (24 - offset))));
+        write_byte(u8((low_value >> (24 - offset))));
+        ++stream_pos;
 
         low_value <<= offset;
         shift = count;
@@ -923,13 +931,6 @@ void VpxRangeEncoder::End() {
     }
 }
 
-u8 VpxRangeEncoder::PeekByte() {
-    const u8 value = base_stream.ReadByte();
-    base_stream.Seek(-1, Common::SeekOrigin::FromCurrentPos);
-
-    return value;
-}
-
 VpxBitStreamWriter::VpxBitStreamWriter() = default;
 
 VpxBitStreamWriter::~VpxBitStreamWriter() = default;

src/video_core/host1x/codecs/vp9.h

@@ -12,7 +12,6 @@
 
 #include "common/common_types.h"
 #include "common/scratch_buffer.h"
-#include "common/stream.h"
 #include "video_core/host1x/codecs/decoder.h"
 #include "video_core/host1x/codec_types.h"
 #include "video_core/host1x/nvdec_common.h"
@@ -52,16 +51,19 @@ public:
     void End();
 
     [[nodiscard]] std::vector<u8>& GetBuffer() {
-        return base_stream.GetBuffer();
+        return stream_data;
     }
 
     [[nodiscard]] const std::vector<u8>& GetBuffer() const {
-        return base_stream.GetBuffer();
+        return stream_data;
     }
 
 private:
     u8 PeekByte();
-    Common::Stream base_stream{};
+
+    std::vector<u8> stream_data{};
+    size_t stream_pos;
+
     u32 low_value{};
     u32 range{0xff};
     s32 count{-24};