forked from suyu/suyu
0cbcd6ec9a
As means to pave the way for getting rid of global state within core, This eliminates kernel global state by removing all globals. Instead this introduces a KernelCore class which acts as a kernel instance. This instance lives in the System class, which keeps its lifetime contained to the lifetime of the System class. This also forces the kernel types to actually interact with the main kernel instance itself instead of having transient kernel state placed all over several translation units, keeping everything together. It also has a nice consequence of making dependencies much more explicit. This also makes our initialization a tad bit more correct. Previously we were creating a kernel process before the actual kernel was initialized, which doesn't really make much sense. The KernelCore class itself follows the PImpl idiom, which allows keeping all the implementation details sealed away from everything else, which forces the use of the exposed API and allows us to avoid any unnecessary inclusions within the main kernel header.
106 lines
3.4 KiB
C++
106 lines
3.4 KiB
C++
// 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/service/nvflinger/buffer_queue.h"
|
|
|
|
namespace Service {
|
|
namespace NVFlinger {
|
|
|
|
BufferQueue::BufferQueue(u32 id, u64 layer_id) : id(id), layer_id(layer_id) {
|
|
auto& kernel = Core::System::GetInstance().Kernel();
|
|
buffer_wait_event =
|
|
Kernel::Event::Create(kernel, Kernel::ResetType::Sticky, "BufferQueue NativeHandle");
|
|
}
|
|
|
|
void BufferQueue::SetPreallocatedBuffer(u32 slot, const IGBPBuffer& igbp_buffer) {
|
|
Buffer buffer{};
|
|
buffer.slot = slot;
|
|
buffer.igbp_buffer = igbp_buffer;
|
|
buffer.status = Buffer::Status::Free;
|
|
|
|
LOG_WARNING(Service, "Adding graphics buffer {}", slot);
|
|
|
|
queue.emplace_back(buffer);
|
|
buffer_wait_event->Signal();
|
|
}
|
|
|
|
boost::optional<u32> BufferQueue::DequeueBuffer(u32 width, u32 height) {
|
|
auto itr = std::find_if(queue.begin(), queue.end(), [&](const Buffer& buffer) {
|
|
// Only consider free buffers. Buffers become free once again after they've been Acquired
|
|
// and Released by the compositor, see the NVFlinger::Compose method.
|
|
if (buffer.status != Buffer::Status::Free) {
|
|
return false;
|
|
}
|
|
|
|
// Make sure that the parameters match.
|
|
return buffer.igbp_buffer.width == width && buffer.igbp_buffer.height == height;
|
|
});
|
|
|
|
if (itr == queue.end()) {
|
|
return boost::none;
|
|
}
|
|
|
|
itr->status = Buffer::Status::Dequeued;
|
|
return itr->slot;
|
|
}
|
|
|
|
const IGBPBuffer& BufferQueue::RequestBuffer(u32 slot) const {
|
|
auto itr = std::find_if(queue.begin(), queue.end(),
|
|
[&](const Buffer& buffer) { return buffer.slot == slot; });
|
|
ASSERT(itr != queue.end());
|
|
ASSERT(itr->status == Buffer::Status::Dequeued);
|
|
return itr->igbp_buffer;
|
|
}
|
|
|
|
void BufferQueue::QueueBuffer(u32 slot, BufferTransformFlags transform,
|
|
const MathUtil::Rectangle<int>& crop_rect) {
|
|
auto itr = std::find_if(queue.begin(), queue.end(),
|
|
[&](const Buffer& buffer) { return buffer.slot == slot; });
|
|
ASSERT(itr != queue.end());
|
|
ASSERT(itr->status == Buffer::Status::Dequeued);
|
|
itr->status = Buffer::Status::Queued;
|
|
itr->transform = transform;
|
|
itr->crop_rect = crop_rect;
|
|
}
|
|
|
|
boost::optional<const BufferQueue::Buffer&> BufferQueue::AcquireBuffer() {
|
|
auto itr = std::find_if(queue.begin(), queue.end(), [](const Buffer& buffer) {
|
|
return buffer.status == Buffer::Status::Queued;
|
|
});
|
|
if (itr == queue.end())
|
|
return boost::none;
|
|
itr->status = Buffer::Status::Acquired;
|
|
return *itr;
|
|
}
|
|
|
|
void BufferQueue::ReleaseBuffer(u32 slot) {
|
|
auto itr = std::find_if(queue.begin(), queue.end(),
|
|
[&](const Buffer& buffer) { return buffer.slot == slot; });
|
|
ASSERT(itr != queue.end());
|
|
ASSERT(itr->status == Buffer::Status::Acquired);
|
|
itr->status = Buffer::Status::Free;
|
|
|
|
buffer_wait_event->Signal();
|
|
}
|
|
|
|
u32 BufferQueue::Query(QueryType type) {
|
|
LOG_WARNING(Service, "(STUBBED) called type={}", static_cast<u32>(type));
|
|
switch (type) {
|
|
case QueryType::NativeWindowFormat:
|
|
// TODO(Subv): Use an enum for this
|
|
static constexpr u32 FormatABGR8 = 1;
|
|
return FormatABGR8;
|
|
}
|
|
|
|
UNIMPLEMENTED();
|
|
return 0;
|
|
}
|
|
|
|
} // namespace NVFlinger
|
|
} // namespace Service
|