yuzu/src/video_core/gpu_thread.cpp
James Rowe 282adfc70b Frontend/GPU: Refactor context management
Changes the GraphicsContext to be managed by the GPU core. This
eliminates the need for the frontends to fool around with tricky
MakeCurrent/DoneCurrent calls that are dependent on the settings (such
as async gpu option).

This also refactors out the need to use QWidget::fromWindowContainer as
that caused issues with focus and input handling. Now we use a regular
QWidget and just access the native windowHandle() directly.

Another change is removing the debug tool setting in FrameMailbox.
Instead of trying to block the frontend until a new frame is ready, the
core will now take over presentation and draw directly to the window if
the renderer detects that its hooked by NSight or RenderDoc

Lastly, since it was in the way, I removed ScopeAcquireWindowContext and
replaced it with a simple subclass in GraphicsContext that achieves the
same result
2020-03-24 21:03:42 -06:00

104 lines
3.6 KiB
C++

// Copyright 2019 yuzu Emulator Project
// Licensed under GPLv2 or any later version
// Refer to the license.txt file included.
#include "common/assert.h"
#include "common/microprofile.h"
#include "core/core.h"
#include "core/frontend/emu_window.h"
#include "video_core/dma_pusher.h"
#include "video_core/gpu.h"
#include "video_core/gpu_thread.h"
#include "video_core/renderer_base.h"
namespace VideoCommon::GPUThread {
/// Runs the GPU thread
static void RunThread(VideoCore::RendererBase& renderer, Core::Frontend::GraphicsContext& context,
Tegra::DmaPusher& dma_pusher, SynchState& state) {
MicroProfileOnThreadCreate("GpuThread");
// Wait for first GPU command before acquiring the window context
while (state.queue.Empty())
;
// If emulation was stopped during disk shader loading, abort before trying to acquire context
if (!state.is_running) {
return;
}
auto current_context = context.Acquire();
CommandDataContainer next;
while (state.is_running) {
next = state.queue.PopWait();
if (const auto submit_list = std::get_if<SubmitListCommand>(&next.data)) {
dma_pusher.Push(std::move(submit_list->entries));
dma_pusher.DispatchCalls();
} else if (const auto data = std::get_if<SwapBuffersCommand>(&next.data)) {
renderer.SwapBuffers(data->framebuffer ? &*data->framebuffer : nullptr);
} else if (const auto data = std::get_if<FlushRegionCommand>(&next.data)) {
renderer.Rasterizer().FlushRegion(data->addr, data->size);
} else if (const auto data = std::get_if<InvalidateRegionCommand>(&next.data)) {
renderer.Rasterizer().InvalidateRegion(data->addr, data->size);
} else if (std::holds_alternative<EndProcessingCommand>(next.data)) {
return;
} else {
UNREACHABLE();
}
state.signaled_fence.store(next.fence);
}
}
ThreadManager::ThreadManager(Core::System& system) : system{system} {}
ThreadManager::~ThreadManager() {
if (!thread.joinable()) {
return;
}
// Notify GPU thread that a shutdown is pending
PushCommand(EndProcessingCommand());
thread.join();
}
void ThreadManager::StartThread(VideoCore::RendererBase& renderer,
Core::Frontend::GraphicsContext& context,
Tegra::DmaPusher& dma_pusher) {
thread = std::thread{RunThread, std::ref(renderer), std::ref(context), std::ref(dma_pusher),
std::ref(state)};
}
void ThreadManager::SubmitList(Tegra::CommandList&& entries) {
PushCommand(SubmitListCommand(std::move(entries)));
}
void ThreadManager::SwapBuffers(const Tegra::FramebufferConfig* framebuffer) {
PushCommand(SwapBuffersCommand(framebuffer ? std::make_optional(*framebuffer) : std::nullopt));
}
void ThreadManager::FlushRegion(CacheAddr addr, u64 size) {
PushCommand(FlushRegionCommand(addr, size));
}
void ThreadManager::InvalidateRegion(CacheAddr addr, u64 size) {
system.Renderer().Rasterizer().InvalidateRegion(addr, size);
}
void ThreadManager::FlushAndInvalidateRegion(CacheAddr addr, u64 size) {
// Skip flush on asynch mode, as FlushAndInvalidateRegion is not used for anything too important
InvalidateRegion(addr, size);
}
void ThreadManager::WaitIdle() const {
while (state.last_fence > state.signaled_fence.load(std::memory_order_relaxed)) {
}
}
u64 ThreadManager::PushCommand(CommandData&& command_data) {
const u64 fence{++state.last_fence};
state.queue.Push(CommandDataContainer(std::move(command_data), fence));
return fence;
}
} // namespace VideoCommon::GPUThread