hle: service: nvflinger: Remove unused BufferQueue.

src/core/hle/service/nvflinger/buffer_queue.cpp

@@ -1,206 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include <algorithm>
-
-#include "common/assert.h"
-#include "common/logging/log.h"
-#include "core/core.h"
-#include "core/hle/kernel/k_writable_event.h"
-#include "core/hle/kernel/kernel.h"
-#include "core/hle/service/kernel_helpers.h"
-#include "core/hle/service/nvflinger/buffer_queue.h"
-
-namespace Service::NVFlinger {
-
-BufferQueue::BufferQueue(Kernel::KernelCore& kernel, u32 id_, u64 layer_id_,
-                         KernelHelpers::ServiceContext& service_context_)
-    : id(id_), layer_id(layer_id_), service_context{service_context_} {
-    buffer_wait_event = service_context.CreateEvent("BufferQueue:WaitEvent");
-}
-
-BufferQueue::~BufferQueue() {
-    service_context.CloseEvent(buffer_wait_event);
-}
-
-void BufferQueue::SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer) {
-    ASSERT(slot < buffer_slots);
-    LOG_WARNING(Service, "Adding graphics buffer {}", slot);
-
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers.push_back(slot);
-    }
-    free_buffers_condition.notify_one();
-
-    buffers[slot] = {
-        .slot = slot,
-        .status = Buffer::Status::Free,
-        .igbp_buffer = igbp_buffer,
-        .transform = {},
-        .crop_rect = {},
-        .swap_interval = 0,
-        .multi_fence = {},
-    };
-
-    buffer_wait_event->GetWritableEvent().Signal();
-}
-
-std::optional<std::pair<u32, Service::Nvidia::MultiFence*>> BufferQueue::DequeueBuffer(u32 width,
-                                                                                       u32 height) {
-    // Wait for first request before trying to dequeue
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers_condition.wait(lock, [this] { return !free_buffers.empty() || !is_connect; });
-    }
-
-    if (!is_connect) {
-        // Buffer was disconnected while the thread was blocked, this is most likely due to
-        // emulation being stopped
-        return std::nullopt;
-    }
-
-    std::unique_lock lock{free_buffers_mutex};
-
-    auto f_itr = free_buffers.begin();
-    auto slot = buffers.size();
-
-    while (f_itr != free_buffers.end()) {
-        const Buffer& buffer = buffers[*f_itr];
-        if (buffer.status == Buffer::Status::Free && buffer.igbp_buffer.width == width &&
-            buffer.igbp_buffer.height == height) {
-            slot = *f_itr;
-            free_buffers.erase(f_itr);
-            break;
-        }
-        ++f_itr;
-    }
-    if (slot == buffers.size()) {
-        return std::nullopt;
-    }
-    buffers[slot].status = Buffer::Status::Dequeued;
-    return {{buffers[slot].slot, &buffers[slot].multi_fence}};
-}
-
-const IGBPBuffer& BufferQueue::RequestBuffer(u32 slot) const {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status == Buffer::Status::Dequeued);
-    ASSERT(buffers[slot].slot == slot);
-
-    return buffers[slot].igbp_buffer;
-}
-
-void BufferQueue::QueueBuffer(u32 slot, BufferTransformFlags transform,
-                              const Common::Rectangle<int>& crop_rect, u32 swap_interval,
-                              Service::Nvidia::MultiFence& multi_fence) {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status == Buffer::Status::Dequeued);
-    ASSERT(buffers[slot].slot == slot);
-
-    buffers[slot].status = Buffer::Status::Queued;
-    buffers[slot].transform = transform;
-    buffers[slot].crop_rect = crop_rect;
-    buffers[slot].swap_interval = swap_interval;
-    buffers[slot].multi_fence = multi_fence;
-    std::unique_lock lock{queue_sequence_mutex};
-    queue_sequence.push_back(slot);
-}
-
-void BufferQueue::CancelBuffer(u32 slot, const Service::Nvidia::MultiFence& multi_fence) {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status != Buffer::Status::Free);
-    ASSERT(buffers[slot].slot == slot);
-
-    buffers[slot].status = Buffer::Status::Free;
-    buffers[slot].multi_fence = multi_fence;
-    buffers[slot].swap_interval = 0;
-
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers.push_back(slot);
-    }
-    free_buffers_condition.notify_one();
-
-    buffer_wait_event->GetWritableEvent().Signal();
-}
-
-std::optional<std::reference_wrapper<const BufferQueue::Buffer>> BufferQueue::AcquireBuffer() {
-    std::unique_lock lock{queue_sequence_mutex};
-    std::size_t buffer_slot = buffers.size();
-    // Iterate to find a queued buffer matching the requested slot.
-    while (buffer_slot == buffers.size() && !queue_sequence.empty()) {
-        const auto slot = static_cast<std::size_t>(queue_sequence.front());
-        ASSERT(slot < buffers.size());
-        if (buffers[slot].status == Buffer::Status::Queued) {
-            ASSERT(buffers[slot].slot == slot);
-            buffer_slot = slot;
-        }
-        queue_sequence.pop_front();
-    }
-    if (buffer_slot == buffers.size()) {
-        return std::nullopt;
-    }
-    buffers[buffer_slot].status = Buffer::Status::Acquired;
-    return {{buffers[buffer_slot]}};
-}
-
-void BufferQueue::ReleaseBuffer(u32 slot) {
-    ASSERT(slot < buffers.size());
-    ASSERT(buffers[slot].status == Buffer::Status::Acquired);
-    ASSERT(buffers[slot].slot == slot);
-
-    buffers[slot].status = Buffer::Status::Free;
-    {
-        std::unique_lock lock{free_buffers_mutex};
-        free_buffers.push_back(slot);
-    }
-    free_buffers_condition.notify_one();
-
-    buffer_wait_event->GetWritableEvent().Signal();
-}
-
-void BufferQueue::Connect() {
-    std::unique_lock lock{queue_sequence_mutex};
-    queue_sequence.clear();
-    is_connect = true;
-}
-
-void BufferQueue::Disconnect() {
-    buffers.fill({});
-    {
-        std::unique_lock lock{queue_sequence_mutex};
-        queue_sequence.clear();
-    }
-    buffer_wait_event->GetWritableEvent().Signal();
-    is_connect = false;
-    free_buffers_condition.notify_one();
-}
-
-u32 BufferQueue::Query(QueryType type) {
-    LOG_WARNING(Service, "(STUBBED) called type={}", type);
-
-    switch (type) {
-    case QueryType::NativeWindowFormat:
-        return static_cast<u32>(PixelFormat::RGBA8888);
-    case QueryType::NativeWindowWidth:
-    case QueryType::NativeWindowHeight:
-        break;
-    case QueryType::NativeWindowMinUndequeuedBuffers:
-        return 0;
-    case QueryType::NativeWindowConsumerUsageBits:
-        return 0;
-    }
-    UNIMPLEMENTED_MSG("Unimplemented query type={}", type);
-    return 0;
-}
-
-Kernel::KWritableEvent& BufferQueue::GetWritableBufferWaitEvent() {
-    return buffer_wait_event->GetWritableEvent();
-}
-
-Kernel::KReadableEvent& BufferQueue::GetBufferWaitEvent() {
-    return buffer_wait_event->GetReadableEvent();
-}
-
-} // namespace Service::NVFlinger

src/core/hle/service/nvflinger/buffer_queue.h

@@ -1,154 +0,0 @@
-// Copyright 2018 yuzu emulator team
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include <condition_variable>
-#include <list>
-#include <mutex>
-#include <optional>
-
-#include "common/common_funcs.h"
-#include "common/math_util.h"
-#include "common/swap.h"
-#include "core/hle/kernel/k_event.h"
-#include "core/hle/kernel/k_readable_event.h"
-#include "core/hle/service/nvdrv/nvdata.h"
-
-namespace Kernel {
-class KernelCore;
-class KEvent;
-class KReadableEvent;
-class KWritableEvent;
-} // namespace Kernel
-
-namespace Service::KernelHelpers {
-class ServiceContext;
-} // namespace Service::KernelHelpers
-
-namespace Service::NVFlinger {
-
-constexpr u32 buffer_slots = 0x40;
-struct IGBPBuffer {
-    u32_le magic;
-    u32_le width;
-    u32_le height;
-    u32_le stride;
-    u32_le format;
-    u32_le usage;
-    INSERT_PADDING_WORDS(1);
-    u32_le index;
-    INSERT_PADDING_WORDS(3);
-    u32_le gpu_buffer_id;
-    INSERT_PADDING_WORDS(6);
-    u32_le external_format;
-    INSERT_PADDING_WORDS(10);
-    u32_le nvmap_handle;
-    u32_le offset;
-    INSERT_PADDING_WORDS(60);
-};
-
-static_assert(sizeof(IGBPBuffer) == 0x16C, "IGBPBuffer has wrong size");
-
-class BufferQueue final {
-public:
-    enum class QueryType {
-        NativeWindowWidth = 0,
-        NativeWindowHeight = 1,
-        NativeWindowFormat = 2,
-        /// The minimum number of buffers that must remain un-dequeued after a buffer has been
-        /// queued
-        NativeWindowMinUndequeuedBuffers = 3,
-        /// The consumer gralloc usage bits currently set by the consumer
-        NativeWindowConsumerUsageBits = 10,
-    };
-
-    explicit BufferQueue(Kernel::KernelCore& kernel, u32 id_, u64 layer_id_,
-                         KernelHelpers::ServiceContext& service_context_);
-    ~BufferQueue();
-
-    enum class BufferTransformFlags : u32 {
-        /// No transform flags are set
-        Unset = 0x00,
-        /// Flip source image horizontally (around the vertical axis)
-        FlipH = 0x01,
-        /// Flip source image vertically (around the horizontal axis)
-        FlipV = 0x02,
-        /// Rotate source image 90 degrees clockwise
-        Rotate90 = 0x04,
-        /// Rotate source image 180 degrees
-        Rotate180 = 0x03,
-        /// Rotate source image 270 degrees clockwise
-        Rotate270 = 0x07,
-    };
-
-    enum class PixelFormat : u32 {
-        RGBA8888 = 1,
-        RGBX8888 = 2,
-        RGB888 = 3,
-        RGB565 = 4,
-        BGRA8888 = 5,
-        RGBA5551 = 6,
-        RRGBA4444 = 7,
-    };
-
-    struct Buffer {
-        enum class Status { Free = 0, Queued = 1, Dequeued = 2, Acquired = 3 };
-
-        u32 slot;
-        Status status = Status::Free;
-        IGBPBuffer igbp_buffer;
-        BufferTransformFlags transform;
-        Common::Rectangle<int> crop_rect;
-        u32 swap_interval;
-        Service::Nvidia::MultiFence multi_fence;
-    };
-
-    void SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer);
-    std::optional<std::pair<u32, Service::Nvidia::MultiFence*>> DequeueBuffer(u32 width,
-                                                                              u32 height);
-    const IGBPBuffer& RequestBuffer(u32 slot) const;
-    void QueueBuffer(u32 slot, BufferTransformFlags transform,
-                     const Common::Rectangle<int>& crop_rect, u32 swap_interval,
-                     Service::Nvidia::MultiFence& multi_fence);
-    void CancelBuffer(u32 slot, const Service::Nvidia::MultiFence& multi_fence);
-    std::optional<std::reference_wrapper<const Buffer>> AcquireBuffer();
-    void ReleaseBuffer(u32 slot);
-    void Connect();
-    void Disconnect();
-    u32 Query(QueryType type);
-
-    u32 GetId() const {
-        return id;
-    }
-
-    bool IsConnected() const {
-        return is_connect;
-    }
-
-    Kernel::KWritableEvent& GetWritableBufferWaitEvent();
-
-    Kernel::KReadableEvent& GetBufferWaitEvent();
-
-private:
-    BufferQueue(const BufferQueue&) = delete;
-
-    u32 id{};
-    u64 layer_id{};
-    std::atomic_bool is_connect{};
-
-    std::list<u32> free_buffers;
-    std::array<Buffer, buffer_slots> buffers;
-    std::list<u32> queue_sequence;
-    Kernel::KEvent* buffer_wait_event{};
-
-    std::mutex free_buffers_mutex;
-    std::condition_variable free_buffers_condition;
-
-    std::mutex queue_sequence_mutex;
-
-    KernelHelpers::ServiceContext& service_context;
-};
-
-} // namespace Service::NVFlinger