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hle: service: nvflinger: Remove unused BufferQueue.

This commit is contained in:
bunnei 2022-03-25 22:58:23 -07:00
parent da46d924e9
commit 741a8c3034
2 changed files with 0 additions and 360 deletions
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206
src/core/hle/service/nvflinger/buffer_queue.cpp
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// 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

154
src/core/hle/service/nvflinger/buffer_queue.h
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// 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