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author | bunnei <bunneidev@gmail.com> | 2018-01-22 19:22:20 +0100 |
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committer | GitHub <noreply@github.com> | 2018-01-22 19:22:20 +0100 |
commit | 7f19a7d305c00bf680787c60a550c6ff10e955e0 (patch) | |
tree | afa1c5c7761d167d59ed5de3fad7a28d1edf9d0f /src/core/hle/service/nvflinger/nvflinger.cpp | |
parent | Added stubs for audio services. (#116) (diff) | |
parent | VI: Move BufferQueue and NVFlinger to their own folder/namespace. (diff) | |
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Diffstat (limited to 'src/core/hle/service/nvflinger/nvflinger.cpp')
-rw-r--r-- | src/core/hle/service/nvflinger/nvflinger.cpp | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/src/core/hle/service/nvflinger/nvflinger.cpp b/src/core/hle/service/nvflinger/nvflinger.cpp new file mode 100644 index 000000000..fe622b986 --- /dev/null +++ b/src/core/hle/service/nvflinger/nvflinger.cpp @@ -0,0 +1,161 @@ +// Copyright 2018 yuzu emulator team +// Licensed under GPLv2 or any later version +// Refer to the license.txt file included. + +#include <algorithm> + +#include "common/alignment.h" +#include "common/scope_exit.h" +#include "core/core_timing.h" +#include "core/hle/service/nvdrv/devices/nvdisp_disp0.h" +#include "core/hle/service/nvdrv/nvdrv.h" +#include "core/hle/service/nvflinger/buffer_queue.h" +#include "core/hle/service/nvflinger/nvflinger.h" +#include "video_core/renderer_base.h" +#include "video_core/video_core.h" + +namespace Service { +namespace NVFlinger { + +constexpr size_t SCREEN_REFRESH_RATE = 60; +constexpr u64 frame_ticks = static_cast<u64>(BASE_CLOCK_RATE / SCREEN_REFRESH_RATE); + +NVFlinger::NVFlinger() { + // Add the different displays to the list of displays. + Display default_{0, "Default"}; + Display external{1, "External"}; + Display edid{2, "Edid"}; + Display internal{3, "Internal"}; + + displays.emplace_back(default_); + displays.emplace_back(external); + displays.emplace_back(edid); + displays.emplace_back(internal); + + // Schedule the screen composition events + composition_event = + CoreTiming::RegisterEvent("ScreenCompositioin", [this](u64 userdata, int cycles_late) { + Compose(); + CoreTiming::ScheduleEvent(frame_ticks - cycles_late, composition_event); + }); + + CoreTiming::ScheduleEvent(frame_ticks, composition_event); +} + +NVFlinger::~NVFlinger() { + CoreTiming::UnscheduleEvent(composition_event, 0); +} + +u64 NVFlinger::OpenDisplay(const std::string& name) { + LOG_WARNING(Service, "Opening display %s", name.c_str()); + + // TODO(Subv): Currently we only support the Default display. + ASSERT(name == "Default"); + + auto itr = std::find_if(displays.begin(), displays.end(), + [&](const Display& display) { return display.name == name; }); + + ASSERT(itr != displays.end()); + + return itr->id; +} + +u64 NVFlinger::CreateLayer(u64 display_id) { + auto& display = GetDisplay(display_id); + + ASSERT_MSG(display.layers.empty(), "Only one layer is supported per display at the moment"); + + u64 layer_id = next_layer_id++; + u32 buffer_queue_id = next_buffer_queue_id++; + auto buffer_queue = std::make_shared<BufferQueue>(buffer_queue_id, layer_id); + display.layers.emplace_back(layer_id, buffer_queue); + buffer_queues.emplace_back(std::move(buffer_queue)); + return layer_id; +} + +u32 NVFlinger::GetBufferQueueId(u64 display_id, u64 layer_id) { + const auto& layer = GetLayer(display_id, layer_id); + return layer.buffer_queue->GetId(); +} + +Kernel::SharedPtr<Kernel::Event> NVFlinger::GetVsyncEvent(u64 display_id) { + const auto& display = GetDisplay(display_id); + return display.vsync_event; +} + +std::shared_ptr<BufferQueue> NVFlinger::GetBufferQueue(u32 id) const { + auto itr = std::find_if(buffer_queues.begin(), buffer_queues.end(), + [&](const auto& queue) { return queue->GetId() == id; }); + + ASSERT(itr != buffer_queues.end()); + return *itr; +} + +Display& NVFlinger::GetDisplay(u64 display_id) { + auto itr = std::find_if(displays.begin(), displays.end(), + [&](const Display& display) { return display.id == display_id; }); + + ASSERT(itr != displays.end()); + return *itr; +} + +Layer& NVFlinger::GetLayer(u64 display_id, u64 layer_id) { + auto& display = GetDisplay(display_id); + + auto itr = std::find_if(display.layers.begin(), display.layers.end(), + [&](const Layer& layer) { return layer.id == layer_id; }); + + ASSERT(itr != display.layers.end()); + return *itr; +} + +void NVFlinger::Compose() { + for (auto& display : displays) { + // Trigger vsync for this display at the end of drawing + SCOPE_EXIT({ display.vsync_event->Signal(); }); + + // Don't do anything for displays without layers. + if (display.layers.empty()) + continue; + + // TODO(Subv): Support more than 1 layer. + ASSERT_MSG(display.layers.size() == 1, "Max 1 layer per display is supported"); + + Layer& layer = display.layers[0]; + auto& buffer_queue = layer.buffer_queue; + + // Search for a queued buffer and acquire it + auto buffer = buffer_queue->AcquireBuffer(); + + if (buffer == boost::none) { + // There was no queued buffer to draw, render previous frame + VideoCore::g_renderer->SwapBuffers({}); + continue; + } + + auto& igbp_buffer = buffer->igbp_buffer; + + // Now send the buffer to the GPU for drawing. + auto nvdrv = Nvidia::nvdrv.lock(); + ASSERT(nvdrv); + + // TODO(Subv): Support more than just disp0. The display device selection is probably based + // on which display we're drawing (Default, Internal, External, etc) + auto nvdisp = nvdrv->GetDevice<Nvidia::Devices::nvdisp_disp0>("/dev/nvdisp_disp0"); + ASSERT(nvdisp); + + nvdisp->flip(igbp_buffer.gpu_buffer_id, igbp_buffer.offset, igbp_buffer.format, + igbp_buffer.width, igbp_buffer.height, igbp_buffer.stride); + + buffer_queue->ReleaseBuffer(buffer->slot); + } +} + +Layer::Layer(u64 id, std::shared_ptr<BufferQueue> queue) : id(id), buffer_queue(std::move(queue)) {} + +Display::Display(u64 id, std::string name) : id(id), name(std::move(name)) { + vsync_event = Kernel::Event::Create(Kernel::ResetType::Pulse, "Display VSync Event"); +} + +} // namespace NVFlinger +} // namespace Service |