diff options
Diffstat (limited to 'src/core/hle/service/nvnflinger')
| -rw-r--r-- | src/core/hle/service/nvnflinger/buffer_item.h | 2 | ||||
| -rw-r--r-- | src/core/hle/service/nvnflinger/hardware_composer.cpp | 190 | ||||
| -rw-r--r-- | src/core/hle/service/nvnflinger/hardware_composer.h | 59 | ||||
| -rw-r--r-- | src/core/hle/service/nvnflinger/hwc_layer.h | 27 | ||||
| -rw-r--r-- | src/core/hle/service/nvnflinger/nvnflinger.cpp | 32 | ||||
| -rw-r--r-- | src/core/hle/service/nvnflinger/nvnflinger.h | 1 |
6 files changed, 281 insertions, 30 deletions
diff --git a/src/core/hle/service/nvnflinger/buffer_item.h b/src/core/hle/service/nvnflinger/buffer_item.h index 7fd808f54..f9f262628 100644 --- a/src/core/hle/service/nvnflinger/buffer_item.h +++ b/src/core/hle/service/nvnflinger/buffer_item.h @@ -40,7 +40,7 @@ public: bool is_droppable{}; bool acquire_called{}; bool transform_to_display_inverse{}; - s32 swap_interval{}; + u32 swap_interval{}; }; } // namespace Service::android diff --git a/src/core/hle/service/nvnflinger/hardware_composer.cpp b/src/core/hle/service/nvnflinger/hardware_composer.cpp new file mode 100644 index 000000000..54889bb4f --- /dev/null +++ b/src/core/hle/service/nvnflinger/hardware_composer.cpp @@ -0,0 +1,190 @@ +// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project +// SPDX-License-Identifier: GPL-3.0-or-later + +#include <boost/container/small_vector.hpp> + +#include "common/microprofile.h" +#include "core/hle/service/nvdrv/devices/nvdisp_disp0.h" +#include "core/hle/service/nvnflinger/buffer_item.h" +#include "core/hle/service/nvnflinger/buffer_item_consumer.h" +#include "core/hle/service/nvnflinger/buffer_queue_producer.h" +#include "core/hle/service/nvnflinger/hardware_composer.h" +#include "core/hle/service/nvnflinger/hwc_layer.h" +#include "core/hle/service/nvnflinger/ui/graphic_buffer.h" +#include "core/hle/service/vi/display/vi_display.h" +#include "core/hle/service/vi/layer/vi_layer.h" + +namespace Service::Nvnflinger { + +HardwareComposer::HardwareComposer() = default; +HardwareComposer::~HardwareComposer() = default; + +u32 HardwareComposer::ComposeLocked(VI::Display& display, Nvidia::Devices::nvdisp_disp0& nvdisp, + u32 frame_advance) { + boost::container::small_vector<HwcLayer, 2> composition_stack; + + m_frame_number += frame_advance; + + // Release any necessary framebuffers. + for (auto& [layer_id, framebuffer] : m_framebuffers) { + if (framebuffer.release_frame_number > m_frame_number) { + // Not yet ready to release this framebuffer. + continue; + } + + if (!framebuffer.is_acquired) { + // Already released. + continue; + } + + if (auto* layer = display.FindLayer(layer_id); layer != nullptr) { + // TODO: support release fence + // This is needed to prevent screen tearing + layer->GetConsumer().ReleaseBuffer(framebuffer.item, android::Fence::NoFence()); + framebuffer.is_acquired = false; + } + } + + // Determine the number of vsync periods to wait before composing again. + std::optional<u32> swap_interval{}; + bool has_acquired_buffer{}; + + // Acquire all necessary framebuffers. + for (size_t i = 0; i < display.GetNumLayers(); i++) { + auto& layer = display.GetLayer(i); + auto layer_id = layer.GetLayerId(); + + // Try to fetch the framebuffer (either new or stale). + const auto result = this->CacheFramebufferLocked(layer, layer_id); + + // If we failed, skip this layer. + if (result == CacheStatus::NoBufferAvailable) { + continue; + } + + // If we acquired a new buffer, we need to present. + if (result == CacheStatus::BufferAcquired) { + has_acquired_buffer = true; + } + + const auto& buffer = m_framebuffers[layer_id]; + const auto& item = buffer.item; + const auto& igbp_buffer = *item.graphic_buffer; + + // TODO: get proper Z-index from layer + composition_stack.emplace_back(HwcLayer{ + .buffer_handle = igbp_buffer.BufferId(), + .offset = igbp_buffer.Offset(), + .format = igbp_buffer.ExternalFormat(), + .width = igbp_buffer.Width(), + .height = igbp_buffer.Height(), + .stride = igbp_buffer.Stride(), + .z_index = 0, + .transform = static_cast<android::BufferTransformFlags>(item.transform), + .crop_rect = item.crop, + .acquire_fence = item.fence, + }); + + // We need to compose again either before this frame is supposed to + // be released, or exactly on the vsync period it should be released. + // + // TODO: handle cases where swap intervals are relatively prime. So far, + // only swap intervals of 0, 1 and 2 have been observed, but if 3 were + // to be introduced, this would cause an issue. + if (swap_interval) { + swap_interval = std::min(*swap_interval, item.swap_interval); + } else { + swap_interval = item.swap_interval; + } + } + + // If any new buffers were acquired, we can present. + if (has_acquired_buffer) { + // Sort by Z-index. + std::stable_sort(composition_stack.begin(), composition_stack.end(), + [&](auto& l, auto& r) { return l.z_index < r.z_index; }); + + // Composite. + nvdisp.Composite(composition_stack); + } + + // Render MicroProfile. + MicroProfileFlip(); + + // If we advanced, then advance by at least 1 frame. + if (swap_interval) { + return std::max(*swap_interval, 1U); + } + + // Otherwise, advance by exactly one frame. + return 1U; +} + +void HardwareComposer::RemoveLayerLocked(VI::Display& display, LayerId layer_id) { + // Check if we are tracking a slot with this layer_id. + const auto it = m_framebuffers.find(layer_id); + if (it == m_framebuffers.end()) { + return; + } + + // Try to release the buffer item. + auto* const layer = display.FindLayer(layer_id); + if (layer && it->second.is_acquired) { + layer->GetConsumer().ReleaseBuffer(it->second.item, android::Fence::NoFence()); + } + + // Erase the slot. + m_framebuffers.erase(it); +} + +bool HardwareComposer::TryAcquireFramebufferLocked(VI::Layer& layer, Framebuffer& framebuffer) { + // Attempt the update. + const auto status = layer.GetConsumer().AcquireBuffer(&framebuffer.item, {}, false); + if (status != android::Status::NoError) { + return false; + } + + // We succeeded, so set the new release frame info. + framebuffer.release_frame_number = + m_frame_number + std::max(1U, framebuffer.item.swap_interval); + framebuffer.is_acquired = true; + + return true; +} + +HardwareComposer::CacheStatus HardwareComposer::CacheFramebufferLocked(VI::Layer& layer, + LayerId layer_id) { + // Check if this framebuffer is already present. + const auto it = m_framebuffers.find(layer_id); + if (it != m_framebuffers.end()) { + // If it's currently still acquired, we are done. + if (it->second.is_acquired) { + return CacheStatus::CachedBufferReused; + } + + // Try to acquire a new item. + if (this->TryAcquireFramebufferLocked(layer, it->second)) { + // We got a new item. + return CacheStatus::BufferAcquired; + } else { + // We didn't acquire a new item, but we can reuse the slot. + return CacheStatus::CachedBufferReused; + } + } + + // Framebuffer is not present, so try to create it. + Framebuffer framebuffer{}; + + if (this->TryAcquireFramebufferLocked(layer, framebuffer)) { + // Move the buffer item into a new slot. + m_framebuffers.emplace(layer_id, std::move(framebuffer)); + + // We succeeded. + return CacheStatus::BufferAcquired; + } + + // We couldn't acquire the buffer item, so don't create a slot. + return CacheStatus::NoBufferAvailable; +} + +} // namespace Service::Nvnflinger diff --git a/src/core/hle/service/nvnflinger/hardware_composer.h b/src/core/hle/service/nvnflinger/hardware_composer.h new file mode 100644 index 000000000..611afc169 --- /dev/null +++ b/src/core/hle/service/nvnflinger/hardware_composer.h @@ -0,0 +1,59 @@ +// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project +// SPDX-License-Identifier: GPL-3.0-or-later + +#pragma once + +#include <memory> +#include <boost/container/flat_map.hpp> + +#include "core/hle/service/nvnflinger/buffer_item.h" + +namespace Service::Nvidia::Devices { +class nvdisp_disp0; +} + +namespace Service::VI { +class Display; +class Layer; +} // namespace Service::VI + +namespace Service::Nvnflinger { + +using LayerId = u64; + +class HardwareComposer { +public: + explicit HardwareComposer(); + ~HardwareComposer(); + + u32 ComposeLocked(VI::Display& display, Nvidia::Devices::nvdisp_disp0& nvdisp, + u32 frame_advance); + void RemoveLayerLocked(VI::Display& display, LayerId layer_id); + +private: + // TODO: do we want to track frame number in vi instead? + u64 m_frame_number{0}; + +private: + using ReleaseFrameNumber = u64; + + struct Framebuffer { + android::BufferItem item{}; + ReleaseFrameNumber release_frame_number{}; + bool is_acquired{false}; + }; + + enum class CacheStatus : u32 { + NoBufferAvailable, + BufferAcquired, + CachedBufferReused, + }; + + boost::container::flat_map<LayerId, Framebuffer> m_framebuffers{}; + +private: + bool TryAcquireFramebufferLocked(VI::Layer& layer, Framebuffer& framebuffer); + CacheStatus CacheFramebufferLocked(VI::Layer& layer, LayerId layer_id); +}; + +} // namespace Service::Nvnflinger diff --git a/src/core/hle/service/nvnflinger/hwc_layer.h b/src/core/hle/service/nvnflinger/hwc_layer.h new file mode 100644 index 000000000..3af668a25 --- /dev/null +++ b/src/core/hle/service/nvnflinger/hwc_layer.h @@ -0,0 +1,27 @@ +// SPDX-FileCopyrightText: Copyright 2024 yuzu Emulator Project +// SPDX-License-Identifier: GPL-3.0-or-later + +#pragma once + +#include "common/math_util.h" +#include "core/hle/service/nvdrv/nvdata.h" +#include "core/hle/service/nvnflinger/buffer_transform_flags.h" +#include "core/hle/service/nvnflinger/pixel_format.h" +#include "core/hle/service/nvnflinger/ui/fence.h" + +namespace Service::Nvnflinger { + +struct HwcLayer { + u32 buffer_handle; + u32 offset; + android::PixelFormat format; + u32 width; + u32 height; + u32 stride; + s32 z_index; + android::BufferTransformFlags transform; + Common::Rectangle<int> crop_rect; + android::Fence acquire_fence; +}; + +} // namespace Service::Nvnflinger diff --git a/src/core/hle/service/nvnflinger/nvnflinger.cpp b/src/core/hle/service/nvnflinger/nvnflinger.cpp index 51133853c..e775a2ca8 100644 --- a/src/core/hle/service/nvnflinger/nvnflinger.cpp +++ b/src/core/hle/service/nvnflinger/nvnflinger.cpp @@ -18,6 +18,7 @@ #include "core/hle/service/nvnflinger/buffer_item_consumer.h" #include "core/hle/service/nvnflinger/buffer_queue_core.h" #include "core/hle/service/nvnflinger/fb_share_buffer_manager.h" +#include "core/hle/service/nvnflinger/hardware_composer.h" #include "core/hle/service/nvnflinger/hos_binder_driver_server.h" #include "core/hle/service/nvnflinger/nvnflinger.h" #include "core/hle/service/nvnflinger/ui/graphic_buffer.h" @@ -279,45 +280,18 @@ void Nvnflinger::Compose() { SCOPE_EXIT({ display.SignalVSyncEvent(); }); // Don't do anything for displays without layers. - if (!display.HasLayers()) - continue; - - // TODO(Subv): Support more than 1 layer. - VI::Layer& layer = display.GetLayer(0); - - android::BufferItem buffer{}; - const auto status = layer.GetConsumer().AcquireBuffer(&buffer, {}, false); - - if (status != android::Status::NoError) { + if (!display.HasLayers()) { continue; } - const auto& igbp_buffer = *buffer.graphic_buffer; - if (!system.IsPoweredOn()) { return; // We are likely shutting down } - // Now send the buffer to the GPU for drawing. - // 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>(disp_fd); ASSERT(nvdisp); - Common::Rectangle<int> crop_rect{ - static_cast<int>(buffer.crop.Left()), static_cast<int>(buffer.crop.Top()), - static_cast<int>(buffer.crop.Right()), static_cast<int>(buffer.crop.Bottom())}; - - nvdisp->flip(igbp_buffer.BufferId(), igbp_buffer.Offset(), igbp_buffer.ExternalFormat(), - igbp_buffer.Width(), igbp_buffer.Height(), igbp_buffer.Stride(), - static_cast<android::BufferTransformFlags>(buffer.transform), crop_rect, - buffer.fence.fences, buffer.fence.num_fences); - - MicroProfileFlip(); - - swap_interval = buffer.swap_interval; - - layer.GetConsumer().ReleaseBuffer(buffer, android::Fence::NoFence()); + swap_interval = display.GetComposer().ComposeLocked(display, *nvdisp, swap_interval); } } diff --git a/src/core/hle/service/nvnflinger/nvnflinger.h b/src/core/hle/service/nvnflinger/nvnflinger.h index 369439142..73ff36620 100644 --- a/src/core/hle/service/nvnflinger/nvnflinger.h +++ b/src/core/hle/service/nvnflinger/nvnflinger.h @@ -46,6 +46,7 @@ class BufferQueueProducer; namespace Service::Nvnflinger { class FbShareBufferManager; +class HardwareComposer; class HosBinderDriverServer; class Nvnflinger final { |