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Merge pull request #2087 from lioncash/const
service/nvflinger, service/vi: Improve error case handling
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commit
40cd299f01
@ -322,14 +322,15 @@ void ISelfController::SetScreenShotImageOrientation(Kernel::HLERequestContext& c
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void ISelfController::CreateManagedDisplayLayer(Kernel::HLERequestContext& ctx) {
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LOG_WARNING(Service_AM, "(STUBBED) called");
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// TODO(Subv): Find out how AM determines the display to use, for now just
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// create the layer in the Default display.
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u64 display_id = nvflinger->OpenDisplay("Default");
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u64 layer_id = nvflinger->CreateLayer(display_id);
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const auto display_id = nvflinger->OpenDisplay("Default");
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const auto layer_id = nvflinger->CreateLayer(*display_id);
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IPC::ResponseBuilder rb{ctx, 4};
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rb.Push(RESULT_SUCCESS);
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rb.Push(layer_id);
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rb.Push(*layer_id);
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}
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void ISelfController::SetHandlesRequestToDisplay(Kernel::HLERequestContext& ctx) {
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@ -46,7 +46,7 @@ void NVFlinger::SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance) {
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nvdrv = std::move(instance);
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}
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u64 NVFlinger::OpenDisplay(std::string_view name) {
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std::optional<u64> NVFlinger::OpenDisplay(std::string_view name) {
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LOG_DEBUG(Service, "Opening \"{}\" display", name);
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// TODO(Subv): Currently we only support the Default display.
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@ -54,32 +54,48 @@ u64 NVFlinger::OpenDisplay(std::string_view name) {
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const auto itr = std::find_if(displays.begin(), displays.end(),
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[&](const Display& display) { return display.name == name; });
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ASSERT(itr != displays.end());
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if (itr == displays.end()) {
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return {};
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}
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return itr->id;
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}
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u64 NVFlinger::CreateLayer(u64 display_id) {
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auto& display = FindDisplay(display_id);
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std::optional<u64> NVFlinger::CreateLayer(u64 display_id) {
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auto* const display = FindDisplay(display_id);
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ASSERT_MSG(display.layers.empty(), "Only one layer is supported per display at the moment");
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if (display == nullptr) {
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return {};
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}
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ASSERT_MSG(display->layers.empty(), "Only one layer is supported per display at the moment");
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const u64 layer_id = next_layer_id++;
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const u32 buffer_queue_id = next_buffer_queue_id++;
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auto buffer_queue = std::make_shared<BufferQueue>(buffer_queue_id, layer_id);
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display.layers.emplace_back(layer_id, buffer_queue);
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display->layers.emplace_back(layer_id, buffer_queue);
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buffer_queues.emplace_back(std::move(buffer_queue));
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return layer_id;
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}
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u32 NVFlinger::FindBufferQueueId(u64 display_id, u64 layer_id) const {
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const auto& layer = FindLayer(display_id, layer_id);
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return layer.buffer_queue->GetId();
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std::optional<u32> NVFlinger::FindBufferQueueId(u64 display_id, u64 layer_id) const {
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const auto* const layer = FindLayer(display_id, layer_id);
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if (layer == nullptr) {
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return {};
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}
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return layer->buffer_queue->GetId();
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}
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Kernel::SharedPtr<Kernel::ReadableEvent> NVFlinger::GetVsyncEvent(u64 display_id) {
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return FindDisplay(display_id).vsync_event.readable;
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Kernel::SharedPtr<Kernel::ReadableEvent> NVFlinger::FindVsyncEvent(u64 display_id) const {
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auto* const display = FindDisplay(display_id);
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if (display == nullptr) {
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return nullptr;
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}
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return display->vsync_event.readable;
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}
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std::shared_ptr<BufferQueue> NVFlinger::FindBufferQueue(u32 id) const {
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@ -90,40 +106,60 @@ std::shared_ptr<BufferQueue> NVFlinger::FindBufferQueue(u32 id) const {
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return *itr;
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}
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Display& NVFlinger::FindDisplay(u64 display_id) {
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Display* NVFlinger::FindDisplay(u64 display_id) {
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const auto itr = std::find_if(displays.begin(), displays.end(),
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[&](const Display& display) { return display.id == display_id; });
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ASSERT(itr != displays.end());
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return *itr;
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if (itr == displays.end()) {
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return nullptr;
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}
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return &*itr;
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}
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const Display& NVFlinger::FindDisplay(u64 display_id) const {
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const Display* NVFlinger::FindDisplay(u64 display_id) const {
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const auto itr = std::find_if(displays.begin(), displays.end(),
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[&](const Display& display) { return display.id == display_id; });
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ASSERT(itr != displays.end());
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return *itr;
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if (itr == displays.end()) {
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return nullptr;
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}
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return &*itr;
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}
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Layer& NVFlinger::FindLayer(u64 display_id, u64 layer_id) {
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auto& display = FindDisplay(display_id);
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Layer* NVFlinger::FindLayer(u64 display_id, u64 layer_id) {
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auto* const display = FindDisplay(display_id);
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const auto itr = std::find_if(display.layers.begin(), display.layers.end(),
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if (display == nullptr) {
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return nullptr;
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}
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const auto itr = std::find_if(display->layers.begin(), display->layers.end(),
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[&](const Layer& layer) { return layer.id == layer_id; });
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ASSERT(itr != display.layers.end());
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return *itr;
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if (itr == display->layers.end()) {
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return nullptr;
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}
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return &*itr;
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}
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const Layer& NVFlinger::FindLayer(u64 display_id, u64 layer_id) const {
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const auto& display = FindDisplay(display_id);
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const Layer* NVFlinger::FindLayer(u64 display_id, u64 layer_id) const {
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const auto* const display = FindDisplay(display_id);
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const auto itr = std::find_if(display.layers.begin(), display.layers.end(),
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if (display == nullptr) {
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return nullptr;
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}
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const auto itr = std::find_if(display->layers.begin(), display->layers.end(),
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[&](const Layer& layer) { return layer.id == layer_id; });
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ASSERT(itr != display.layers.end());
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return *itr;
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if (itr == display->layers.end()) {
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return nullptr;
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}
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return &*itr;
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}
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void NVFlinger::Compose() {
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@ -6,6 +6,7 @@
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#include <array>
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#include <memory>
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#include <optional>
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#include <string>
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#include <string_view>
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#include <vector>
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@ -58,16 +59,24 @@ public:
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void SetNVDrvInstance(std::shared_ptr<Nvidia::Module> instance);
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/// Opens the specified display and returns the ID.
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u64 OpenDisplay(std::string_view name);
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///
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/// If an invalid display name is provided, then an empty optional is returned.
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std::optional<u64> OpenDisplay(std::string_view name);
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/// Creates a layer on the specified display and returns the layer ID.
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u64 CreateLayer(u64 display_id);
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///
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/// If an invalid display ID is specified, then an empty optional is returned.
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std::optional<u64> CreateLayer(u64 display_id);
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/// Finds the buffer queue ID of the specified layer in the specified display.
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u32 FindBufferQueueId(u64 display_id, u64 layer_id) const;
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///
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/// If an invalid display ID or layer ID is provided, then an empty optional is returned.
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std::optional<u32> FindBufferQueueId(u64 display_id, u64 layer_id) const;
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/// Gets the vsync event for the specified display.
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Kernel::SharedPtr<Kernel::ReadableEvent> GetVsyncEvent(u64 display_id);
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///
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/// If an invalid display ID is provided, then nullptr is returned.
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Kernel::SharedPtr<Kernel::ReadableEvent> FindVsyncEvent(u64 display_id) const;
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/// Obtains a buffer queue identified by the ID.
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std::shared_ptr<BufferQueue> FindBufferQueue(u32 id) const;
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@ -78,16 +87,16 @@ public:
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private:
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/// Finds the display identified by the specified ID.
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Display& FindDisplay(u64 display_id);
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Display* FindDisplay(u64 display_id);
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/// Finds the display identified by the specified ID.
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const Display& FindDisplay(u64 display_id) const;
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const Display* FindDisplay(u64 display_id) const;
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/// Finds the layer identified by the specified ID in the desired display.
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Layer& FindLayer(u64 display_id, u64 layer_id);
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Layer* FindLayer(u64 display_id, u64 layer_id);
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/// Finds the layer identified by the specified ID in the desired display.
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const Layer& FindLayer(u64 display_id, u64 layer_id) const;
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const Layer* FindLayer(u64 display_id, u64 layer_id) const;
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std::shared_ptr<Nvidia::Module> nvdrv;
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@ -34,6 +34,7 @@ namespace Service::VI {
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constexpr ResultCode ERR_OPERATION_FAILED{ErrorModule::VI, 1};
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constexpr ResultCode ERR_UNSUPPORTED{ErrorModule::VI, 6};
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constexpr ResultCode ERR_NOT_FOUND{ErrorModule::VI, 7};
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struct DisplayInfo {
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/// The name of this particular display.
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@ -838,11 +839,16 @@ private:
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"(STUBBED) called. unknown=0x{:08X}, display=0x{:016X}, aruid=0x{:016X}",
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unknown, display, aruid);
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const u64 layer_id = nv_flinger->CreateLayer(display);
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const auto layer_id = nv_flinger->CreateLayer(display);
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if (!layer_id) {
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERR_NOT_FOUND);
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return;
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}
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IPC::ResponseBuilder rb{ctx, 4};
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rb.Push(RESULT_SUCCESS);
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rb.Push(layer_id);
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rb.Push(*layer_id);
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}
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void AddToLayerStack(Kernel::HLERequestContext& ctx) {
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@ -950,9 +956,16 @@ private:
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ASSERT_MSG(name == "Default", "Non-default displays aren't supported yet");
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const auto display_id = nv_flinger->OpenDisplay(name);
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if (!display_id) {
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERR_NOT_FOUND);
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return;
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}
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IPC::ResponseBuilder rb{ctx, 4};
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rb.Push(RESULT_SUCCESS);
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rb.Push<u64>(nv_flinger->OpenDisplay(name));
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rb.Push<u64>(*display_id);
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}
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void CloseDisplay(Kernel::HLERequestContext& ctx) {
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@ -1043,10 +1056,21 @@ private:
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LOG_DEBUG(Service_VI, "called. layer_id=0x{:016X}, aruid=0x{:016X}", layer_id, aruid);
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const u64 display_id = nv_flinger->OpenDisplay(display_name);
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const u32 buffer_queue_id = nv_flinger->FindBufferQueueId(display_id, layer_id);
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const auto display_id = nv_flinger->OpenDisplay(display_name);
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if (!display_id) {
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERR_NOT_FOUND);
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return;
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}
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NativeWindow native_window{buffer_queue_id};
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const auto buffer_queue_id = nv_flinger->FindBufferQueueId(*display_id, layer_id);
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if (!buffer_queue_id) {
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERR_NOT_FOUND);
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return;
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}
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NativeWindow native_window{*buffer_queue_id};
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IPC::ResponseBuilder rb{ctx, 4};
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rb.Push(RESULT_SUCCESS);
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rb.Push<u64>(ctx.WriteBuffer(native_window.Serialize()));
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@ -1062,13 +1086,24 @@ private:
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// TODO(Subv): What's the difference between a Stray and a Managed layer?
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const u64 layer_id = nv_flinger->CreateLayer(display_id);
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const u32 buffer_queue_id = nv_flinger->FindBufferQueueId(display_id, layer_id);
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const auto layer_id = nv_flinger->CreateLayer(display_id);
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if (!layer_id) {
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERR_NOT_FOUND);
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return;
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}
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NativeWindow native_window{buffer_queue_id};
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const auto buffer_queue_id = nv_flinger->FindBufferQueueId(display_id, *layer_id);
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if (!buffer_queue_id) {
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERR_NOT_FOUND);
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return;
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}
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NativeWindow native_window{*buffer_queue_id};
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IPC::ResponseBuilder rb{ctx, 6};
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rb.Push(RESULT_SUCCESS);
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rb.Push(layer_id);
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rb.Push(*layer_id);
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rb.Push<u64>(ctx.WriteBuffer(native_window.Serialize()));
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}
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@ -1088,7 +1123,12 @@ private:
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LOG_WARNING(Service_VI, "(STUBBED) called. display_id=0x{:016X}", display_id);
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const auto vsync_event = nv_flinger->GetVsyncEvent(display_id);
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const auto vsync_event = nv_flinger->FindVsyncEvent(display_id);
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if (!vsync_event) {
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IPC::ResponseBuilder rb{ctx, 2};
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rb.Push(ERR_NOT_FOUND);
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return;
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}
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IPC::ResponseBuilder rb{ctx, 2, 1};
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rb.Push(RESULT_SUCCESS);
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