Subpass Support + More RT Formats + Fix FenceCycle Cyclic Dependencies

Support for subpasses was added by reworking attachment reuse code to account for preserved attachments and subpass dependencies. A lot of RT formats were also added to allow SMO to boot up entirely, it should be noted that it doesn't render anything. 

`FenceCycle` had a cyclic dependency which broke clean exit, we now utilize `std::weak_ptr<FenceCycle>` inside the `Texture` object. A minor fix for broken stack traces was also made caused by supplying a `nullptr` C-string to libfmt when a symbol was unresolved which caused an `abort` due to invocation of `strlen` with it.

app/src/main/cpp/skyline/common.h

@@ -397,6 +397,11 @@ namespace skyline {
 
         constexpr span(const std::span<T, Extent> &spn) : std::span<T, Extent>(spn) {}
 
+        /**
+         * @brief A single-element constructor for a span
+         */
+        constexpr span(T &spn) : std::span<T, Extent>(&spn, 1) {}
+
         /**
          * @brief We want to support implicitly casting from std::string_view -> span as it's just a specialization of a data view which span is a generic form of, the opposite doesn't hold true as not all data held by a span is string data therefore the conversion isn't implicit there
          */

app/src/main/cpp/skyline/gpu.cpp

@@ -87,26 +87,31 @@ namespace skyline::gpu {
         case util::Hash(string):          \
             if(string == type)            \
                 return VK_FALSE;          \
-            else                          \
-                break
+            break
 
         #define DEBUG_VALIDATION(string) \
         case util::Hash(string):         \
             if(string == type)           \
-                __builtin_debugtrap();   \
+                raise(SIGTRAP);          \
             break
+        // Using __builtin_debugtrap() as opposed to raise(SIGTRAP) will result in the inability to continue
 
         std::string_view type(message);
-        auto first{type.find_first_of('[') + 2};
-        type = type.substr(first, type.find_first_of(']', first) - 4);
+        auto first{type.find('[')};
+        auto last{type.find(']', first)};
+        if (first != std::string_view::npos && last != std::string_view::npos) {
+            type = type.substr(first + 2, last != std::string_view::npos ? last - 4 : last);
+            std::string typeStr{type};
 
-        switch (util::Hash(type)) {
-            IGNORE_VALIDATION("UNASSIGNED-CoreValidation-SwapchainPreTransform"); // We handle transformation via Android APIs directly
-            IGNORE_VALIDATION("UNASSIGNED-GeneralParameterPerfWarn-SuboptimalSwapchain"); // Same as SwapchainPreTransform
+            switch (util::Hash(type)) {
+                IGNORE_VALIDATION("UNASSIGNED-CoreValidation-SwapchainPreTransform"); // We handle transformation via Android APIs directly
+                IGNORE_VALIDATION("UNASSIGNED-GeneralParameterPerfWarn-SuboptimalSwapchain"); // Same as SwapchainPreTransform
+                IGNORE_VALIDATION("UNASSIGNED-CoreValidation-DrawState-InvalidImageLayout"); // We utilize images as VK_IMAGE_LAYOUT_GENERAL rather than optimal layouts for operations
+            }
+
+            #undef IGNORE_TYPE
         }
 
-        #undef IGNORE_TYPE
-
         logger->Write(severityLookup.at(std::countr_zero(static_cast<u32>(flags))), util::Format("Vk{}:{}[0x{:X}]:I{}:L{}: {}", layerPrefix, vk::to_string(vk::DebugReportObjectTypeEXT(objectType)), object, messageCode, location, message));
 
         return VK_FALSE;

app/src/main/cpp/skyline/gpu/interconnect/command_executor.cpp

@@ -5,8 +5,8 @@
 #include "command_executor.h"
 
 namespace skyline::gpu::interconnect {
-    void CommandExecutor::AddSubpass(const std::function<void(vk::raii::CommandBuffer &, const std::shared_ptr<FenceCycle> &, GPU &)> &function, vk::Rect2D renderArea, std::vector<TextureView> inputAttachments, std::vector<TextureView> colorAttachments, std::optional<TextureView> depthStencilAttachment) {
-        if (renderpass) { // TODO: Subpass support (&& renderpass->renderArea != renderArea)
+    bool CommandExecutor::CreateRenderpass(vk::Rect2D renderArea) {
+        if (renderpass && renderpass->renderArea != renderArea) {
             nodes.emplace_back(std::in_place_type_t<node::RenderpassEndNode>());
             renderpass = nullptr;
         }
@@ -16,13 +16,44 @@ namespace skyline::gpu::interconnect {
             // We need to create a render pass if one doesn't already exist or the current one isn't compatible
             renderpass = &std::get<node::RenderpassNode>(nodes.emplace_back(std::in_place_type_t<node::RenderpassNode>(), renderArea));
 
-        renderpass->AddSubpass(inputAttachments, colorAttachments, depthStencilAttachment);
+        return newRenderpass;
+    }
+
+    void CommandExecutor::AddSubpass(const std::function<void(vk::raii::CommandBuffer &, const std::shared_ptr<FenceCycle> &, GPU &)> &function, vk::Rect2D renderArea, std::vector<TextureView> inputAttachments, std::vector<TextureView> colorAttachments, std::optional<TextureView> depthStencilAttachment) {
+        bool newRenderpass{CreateRenderpass(renderArea)};
+        renderpass->AddSubpass(inputAttachments, colorAttachments, depthStencilAttachment ? &*depthStencilAttachment : nullptr);
         if (newRenderpass)
             nodes.emplace_back(std::in_place_type_t<node::FunctionNode>(), function);
         else
             nodes.emplace_back(std::in_place_type_t<node::NextSubpassNode>(), function);
     }
 
+    void CommandExecutor::AddClearSubpass(TextureView attachment, const vk::ClearColorValue &value) {
+        bool newRenderpass{CreateRenderpass(vk::Rect2D{
+            .extent = attachment.backing->dimensions,
+        })};
+        renderpass->AddSubpass({}, attachment, nullptr);
+
+        if (!renderpass->ClearColorAttachment(0, value)) {
+            auto function{[scissor = attachment.backing->dimensions, value](vk::raii::CommandBuffer &commandBuffer, const std::shared_ptr<FenceCycle> &, GPU &) {
+                commandBuffer.clearAttachments(vk::ClearAttachment{
+                    .aspectMask = vk::ImageAspectFlagBits::eColor,
+                    .colorAttachment = 0,
+                    .clearValue = value,
+                }, vk::ClearRect{
+                    .rect = scissor,
+                    .baseArrayLayer = 0,
+                    .layerCount = 1,
+                });
+            }};
+
+            if (newRenderpass)
+                nodes.emplace_back(std::in_place_type_t<node::FunctionNode>(), function);
+            else
+                nodes.emplace_back(std::in_place_type_t<node::NextSubpassNode>(), function);
+        }
+    }
+
     void CommandExecutor::Execute() {
         if (!nodes.empty()) {
             if (renderpass) {
@@ -36,6 +67,7 @@ namespace skyline::gpu::interconnect {
                     std::visit(VariantVisitor{
                         [&](FunctionNode &node) { node(commandBuffer, cycle, gpu); },
                         [&](RenderpassNode &node) { node(commandBuffer, cycle, gpu); },
+                        [&](NextSubpassNode &node) { node(commandBuffer, cycle, gpu); },
                         [&](RenderpassEndNode &node) { node(commandBuffer, cycle, gpu); },
                     }, node);
                 }

app/src/main/cpp/skyline/gpu/interconnect/command_executor.h

@@ -17,6 +17,11 @@ namespace skyline::gpu::interconnect {
         boost::container::stable_vector<node::NodeVariant> nodes;
         node::RenderpassNode *renderpass{};
 
+        /**
+         * @return If a new renderpass was created by the function or the current one was reused as it was compatible
+         */
+        bool CreateRenderpass(vk::Rect2D renderArea);
+
       public:
         CommandExecutor(const DeviceState &state) : gpu(*state.gpu) {}
 
@@ -26,6 +31,15 @@ namespace skyline::gpu::interconnect {
          */
         void AddSubpass(const std::function<void(vk::raii::CommandBuffer &, const std::shared_ptr<FenceCycle> &, GPU &)> &function, vk::Rect2D renderArea, std::vector<TextureView> inputAttachments = {}, std::vector<TextureView> colorAttachments = {}, std::optional<TextureView> depthStencilAttachment = {});
 
+        /**
+         * @brief Adds a subpass that clears the entirety of the specified attachment with a value, it may utilize VK_ATTACHMENT_LOAD_OP_CLEAR for a more efficient clear when possible
+         * @note Any texture supplied to this **must** be locked by the calling thread, it should also undergo no persistent layout transitions till execution
+         */
+        void AddClearSubpass(TextureView attachment, const vk::ClearColorValue& value);
+
+        /**
+         * @brief Execute all the nodes and submit the resulting command buffer to the GPU
+         */
         void Execute();
     };
 }

app/src/main/cpp/skyline/gpu/interconnect/command_nodes.h

@@ -49,7 +49,17 @@ namespace skyline::gpu::interconnect::node {
         std::vector<vk::AttachmentDescription> attachmentDescriptions;
 
         std::vector<vk::AttachmentReference> attachmentReferences;
-        std::vector<boost::container::small_vector<u32, 5>> preserveAttachmentReferences; //!< Any attachment that must be preserved to be utilized by a future subpass, these are stored per-subpass to ensure contiguity
+        std::vector<std::vector<u32>> preserveAttachmentReferences; //!< Any attachment that must be preserved to be utilized by a future subpass, these are stored per-subpass to ensure contiguity
+
+        constexpr static uintptr_t DepthStencilNull{std::numeric_limits<uintptr_t>::max()}; //!< A sentinel value to denote the lack of a depth stencil attachment in a VkSubpassDescription
+
+        /**
+         * @brief Rebases a pointer containing an offset relative to the beginning of a container
+         */
+        template<typename Container, typename T>
+        T *RebasePointer(const Container &container, const T *offset) {
+            return reinterpret_cast<T *>(reinterpret_cast<uintptr_t>(container.data()) + reinterpret_cast<uintptr_t>(offset));
+        }
 
       public:
         std::vector<vk::SubpassDescription> subpassDescriptions;
@@ -70,39 +80,81 @@ namespace skyline::gpu::interconnect::node {
             if (texture == textures.end())
                 textures.push_back(view.backing);
 
-            vk::AttachmentDescription attachmentDescription{
-                .format = *view.format,
-                .initialLayout = view.backing->layout,
-                .finalLayout = view.backing->layout,
-            };
-
             auto vkView{view.GetView()};
             auto attachment{std::find(attachments.begin(), attachments.end(), vkView)};
-            if (attachment == attachments.end() || attachmentDescriptions[std::distance(attachments.begin(), attachment)] != attachmentDescription) {
+            if (attachment == attachments.end()) {
                 // If we cannot find any matches for the specified attachment, we add it as a new one
                 attachments.push_back(vkView);
-                attachmentDescriptions.push_back(attachmentDescription);
+                attachmentDescriptions.push_back(vk::AttachmentDescription{
+                    .format = *view.format,
+                    .initialLayout = view.backing->layout,
+                    .finalLayout = view.backing->layout,
+                });
                 return attachments.size() - 1;
             } else {
                 // If we've got a match from a previous subpass, we need to preserve the attachment till the current subpass
                 auto attachmentIndex{std::distance(attachments.begin(), attachment)};
-                auto attachmentReferenceIt{std::find_if(attachmentReferences.begin(), attachmentReferences.end(), [&](const vk::AttachmentReference &reference) {
-                    return reference.attachment == attachmentIndex;
-                })};
 
-                auto attachmentReferenceOffset{std::distance(attachmentReferences.begin(), attachmentReferenceIt) * sizeof(vk::AttachmentReference)};
-                auto subpassDescriptionIt{std::find_if(subpassDescriptions.begin(), subpassDescriptions.end(), [&](const vk::SubpassDescription &description) {
-                    return reinterpret_cast<uintptr_t>(description.pDepthStencilAttachment) > attachmentReferenceOffset;
-                })};
+                auto it{subpassDescriptions.begin()};
+                for (; it != subpassDescriptions.end(); it++) {
+                    auto referenceBeginIt{attachmentReferences.begin()};
+                    referenceBeginIt += reinterpret_cast<uintptr_t>(it->pInputAttachments) / sizeof(vk::AttachmentReference);
 
-                for (ssize_t subpassIndex{std::distance(subpassDescriptions.begin(), subpassDescriptionIt)}; subpassIndex != subpassDescriptions.size(); subpassIndex++)
-                    preserveAttachmentReferences[subpassIndex].push_back(attachmentIndex);
+                    auto referenceEndIt{referenceBeginIt + it->inputAttachmentCount + it->colorAttachmentCount}; // We depend on all attachments being contiguous for a subpass, this will horribly break if that assumption is broken
+                    if (reinterpret_cast<uintptr_t>(it->pDepthStencilAttachment) != DepthStencilNull)
+                        referenceEndIt++;
 
-                return std::distance(attachments.begin(), attachment);
+                    if (std::find_if(referenceBeginIt, referenceEndIt, [&](const vk::AttachmentReference &reference) {
+                        return reference.attachment == attachmentIndex;
+                    }) != referenceEndIt)
+                        break; // The first subpass that utilizes the attachment we want to preserve
+                }
+
+                if (it == subpassDescriptions.end())
+                    throw exception("Cannot find corresponding subpass for attachment #{}", attachmentIndex);
+
+                auto lastUsageIt{it};
+                for (; it != subpassDescriptions.end(); it++) {
+                    auto referenceBeginIt{attachmentReferences.begin()};
+                    referenceBeginIt += reinterpret_cast<uintptr_t>(it->pInputAttachments) / sizeof(vk::AttachmentReference);
+
+                    auto referenceEndIt{referenceBeginIt + it->inputAttachmentCount + it->colorAttachmentCount};
+                    if (reinterpret_cast<uintptr_t>(it->pDepthStencilAttachment) != DepthStencilNull)
+                        referenceEndIt++;
+
+                    if (std::find_if(referenceBeginIt, referenceEndIt, [&](const vk::AttachmentReference &reference) {
+                        return reference.attachment == attachmentIndex;
+                    }) != referenceEndIt) {
+                        lastUsageIt = it;
+                        continue; // If a subpass uses an attachment then it doesn't need to be preserved
+                    }
+
+                    auto &subpassPreserveAttachments{preserveAttachmentReferences[std::distance(subpassDescriptions.begin(), it)]};
+                    if (std::find(subpassPreserveAttachments.begin(), subpassPreserveAttachments.end(), attachmentIndex) != subpassPreserveAttachments.end())
+                        subpassPreserveAttachments.push_back(attachmentIndex);
+                }
+
+                vk::SubpassDependency dependency{
+                    .srcSubpass = static_cast<u32>(std::distance(subpassDescriptions.begin(), lastUsageIt)),
+                    .dstSubpass = static_cast<uint32_t>(subpassDescriptions.size()), // We assume that the next subpass is using the attachment
+                    .srcStageMask = vk::PipelineStageFlagBits::eColorAttachmentOutput,
+                    .dstStageMask = vk::PipelineStageFlagBits::eColorAttachmentOutput,
+                    .srcAccessMask = vk::AccessFlagBits::eColorAttachmentWrite,
+                    .dstAccessMask = vk::AccessFlagBits::eColorAttachmentRead,
+                    .dependencyFlags = vk::DependencyFlagBits::eByRegion,
+                };
+
+                if (std::find(subpassDependencies.begin(), subpassDependencies.end(), dependency) == subpassDependencies.end())
+                    subpassDependencies.push_back(dependency);
+
+                return attachmentIndex;
             }
         }
 
-        void AddSubpass(std::vector<TextureView> &inputAttachments, std::vector<TextureView> &colorAttachments, std::optional<TextureView> &depthStencilAttachment) {
+        /**
+         * @brief Creates a subpass with the attachments bound in the specified order
+         */
+        void AddSubpass(span <TextureView> inputAttachments, span <TextureView> colorAttachments, TextureView *depthStencilAttachment) {
             attachmentReferences.reserve(attachmentReferences.size() + inputAttachments.size() + colorAttachments.size() + (depthStencilAttachment ? 1 : 0));
 
             auto inputAttachmentsOffset{attachmentReferences.size() * sizeof(vk::AttachmentReference)};
@@ -131,29 +183,57 @@ namespace skyline::gpu::interconnect::node {
 
             preserveAttachmentReferences.emplace_back(); // We need to create storage for any attachments that might need to preserved by this pass
 
-            // Note: We encode the offsets as the pointers due to vector pointer invalidation, the vector offset will be added to them prior to submission
+            // Note: We encode the offsets as the pointers due to vector pointer invalidation, RebasePointer(...) can be utilized to deduce the real pointer
             subpassDescriptions.push_back(vk::SubpassDescription{
                 .pipelineBindPoint = vk::PipelineBindPoint::eGraphics,
                 .inputAttachmentCount = static_cast<u32>(inputAttachments.size()),
                 .pInputAttachments = reinterpret_cast<vk::AttachmentReference *>(inputAttachmentsOffset),
                 .colorAttachmentCount = static_cast<u32>(colorAttachments.size()),
                 .pColorAttachments = reinterpret_cast<vk::AttachmentReference *>(colorAttachmentsOffset),
-                .pDepthStencilAttachment = reinterpret_cast<vk::AttachmentReference *>(depthStencilAttachment ? depthStencilAttachmentOffset : std::numeric_limits<uintptr_t>::max()),
+                .pDepthStencilAttachment = reinterpret_cast<vk::AttachmentReference *>(depthStencilAttachment ? depthStencilAttachmentOffset : DepthStencilNull),
             });
         }
 
+        /**
+         * @brief Clears a color attachment in the current subpass with VK_ATTACHMENT_LOAD_OP_LOAD
+         * @param colorAttachment The index of the attachment in the attachments bound to the current subpass
+         * @return If the attachment could be cleared or not due to conflicts with other operations
+         * @note We require a subpass to be attached during this as the clear will not take place unless it's referenced by a subpass
+         */
+        bool ClearColorAttachment(u32 colorAttachment, const vk::ClearColorValue &value) {
+            auto attachmentReference{RebasePointer(attachmentReferences, subpassDescriptions.back().pColorAttachments) + colorAttachment};
+            auto attachmentIndex{attachmentReference->attachment};
+
+            for (const auto &reference : attachmentReferences)
+                if (reference.attachment == attachmentIndex && &reference != attachmentReference)
+                    return false;
+
+            auto &attachmentDescription{attachmentDescriptions.at(attachmentIndex)};
+            if (attachmentDescription.loadOp == vk::AttachmentLoadOp::eLoad) {
+                attachmentDescription.loadOp = vk::AttachmentLoadOp::eClear;
+
+                clearValues.resize(attachmentIndex + 1);
+                clearValues[attachmentIndex].color = value;
+
+                return true;
+            } else if (attachmentDescription.loadOp == vk::AttachmentLoadOp::eClear && clearValues[attachmentIndex].color.uint32 == value.uint32) {
+                return true;
+            }
+
+            return false;
+        }
+
         void operator()(vk::raii::CommandBuffer &commandBuffer, const std::shared_ptr<FenceCycle> &cycle, GPU &gpu) {
             storage->device = &gpu.vkDevice;
 
             auto preserveAttachmentIt{preserveAttachmentReferences.begin()};
-            auto attachmentReferenceOffset{reinterpret_cast<uintptr_t>(attachmentReferences.data())};
             for (auto &subpassDescription : subpassDescriptions) {
-                subpassDescription.pInputAttachments = reinterpret_cast<vk::AttachmentReference *>(attachmentReferenceOffset + reinterpret_cast<uintptr_t>(subpassDescription.pInputAttachments));
-                subpassDescription.pColorAttachments = reinterpret_cast<vk::AttachmentReference *>(attachmentReferenceOffset + reinterpret_cast<uintptr_t>(subpassDescription.pColorAttachments));
+                subpassDescription.pInputAttachments = RebasePointer(attachmentReferences, subpassDescription.pInputAttachments);
+                subpassDescription.pColorAttachments = RebasePointer(attachmentReferences, subpassDescription.pColorAttachments);
 
                 auto depthStencilAttachmentOffset{reinterpret_cast<uintptr_t>(subpassDescription.pDepthStencilAttachment)};
-                if (depthStencilAttachmentOffset != std::numeric_limits<uintptr_t>::max())
-                    subpassDescription.pDepthStencilAttachment = reinterpret_cast<vk::AttachmentReference *>(attachmentReferenceOffset + depthStencilAttachmentOffset);
+                if (depthStencilAttachmentOffset != DepthStencilNull)
+                    subpassDescription.pDepthStencilAttachment = RebasePointer(attachmentReferences, subpassDescription.pDepthStencilAttachment);
                 else
                     subpassDescription.pDepthStencilAttachment = nullptr;
 
@@ -165,7 +245,7 @@ namespace skyline::gpu::interconnect::node {
             for (auto &texture : storage->textures) {
                 texture->lock();
                 texture->WaitOnBacking();
-                if (texture->cycle != cycle)
+                if (texture->cycle.lock() != cycle)
                     texture->WaitOnFence();
             }
 
@@ -209,7 +289,7 @@ namespace skyline::gpu::interconnect::node {
     /**
      * @brief A FunctionNode which progresses to the next subpass prior to calling the function
      */
-    struct NextSubpassNode : FunctionNode {
+    struct NextSubpassNode : private FunctionNode {
         using FunctionNode::FunctionNode;
 
         void operator()(vk::raii::CommandBuffer &commandBuffer, const std::shared_ptr<FenceCycle> &cycle, GPU &gpu) {

app/src/main/cpp/skyline/gpu/interconnect/graphics_context.h

@@ -88,12 +88,30 @@ namespace skyline::gpu::interconnect {
                 switch (format) {
                     case maxwell3d::RenderTarget::ColorFormat::None:
                         return {};
+                    case maxwell3d::RenderTarget::ColorFormat::R32B32G32A32Float:
+                        return format::R32B32G32A32Float;
+                    case maxwell3d::RenderTarget::ColorFormat::R16G16B16A16Float:
+                        return format::R16G16B16A16Float;
                     case maxwell3d::RenderTarget::ColorFormat::A2B10G10R10Unorm:
                         return format::A2B10G10R10Unorm;
                     case maxwell3d::RenderTarget::ColorFormat::R8G8B8A8Unorm:
                         return format::R8G8B8A8Unorm;
                     case maxwell3d::RenderTarget::ColorFormat::A8B8G8R8Srgb:
                         return format::A8B8G8R8Srgb;
+                    case maxwell3d::RenderTarget::ColorFormat::R16G16Snorm:
+                        return format::R16G16Snorm;
+                    case maxwell3d::RenderTarget::ColorFormat::R16G16Float:
+                        return format::R16G16Float;
+                    case maxwell3d::RenderTarget::ColorFormat::B10G11R11Float:
+                        return format::B10G11R11Float;
+                    case maxwell3d::RenderTarget::ColorFormat::R32Float:
+                        return format::R32Float;
+                    case maxwell3d::RenderTarget::ColorFormat::R8G8Snorm:
+                        return format::R8G8Snorm;
+                    case maxwell3d::RenderTarget::ColorFormat::R16Float:
+                        return format::R16Float;
+                    case maxwell3d::RenderTarget::ColorFormat::R8Unorm:
+                        return format::R8Unorm;
                     default:
                         throw exception("Cannot translate the supplied RT format: 0x{:X}", static_cast<u32>(format));
                 }
@@ -206,19 +224,33 @@ namespace skyline::gpu::interconnect {
                     aspect |= vk::ImageAspectFlagBits::eColor;
                 aspect &= renderTarget.format->vkAspect;
 
-                executor.AddSubpass([aspect = aspect, clearColorValue = clearColorValue, layerId = clear.layerId, scissor = scissors.at(renderTargetIndex)](vk::raii::CommandBuffer &commandBuffer, const std::shared_ptr<FenceCycle> &, GPU &) {
-                    commandBuffer.clearAttachments(vk::ClearAttachment{
-                        .aspectMask = aspect,
-                        .colorAttachment = 0,
-                        .clearValue = clearColorValue,
-                    }, vk::ClearRect{
-                        .rect = scissor,
-                        .baseArrayLayer = layerId,
-                        .layerCount = 1,
-                    });
-                }, vk::Rect2D{
-                    .extent = renderTarget.backing->dimensions,
-                }, {}, {renderTarget});
+                if (aspect == vk::ImageAspectFlags{})
+                    return;
+
+                auto scissor{scissors.at(renderTargetIndex)};
+                scissor.extent.width = std::min(renderTarget.backing->dimensions.width - scissor.offset.x, scissor.extent.width);
+                scissor.extent.height = std::min(renderTarget.backing->dimensions.height - scissor.offset.y, scissor.extent.height);
+
+                if (scissor.extent.width == 0 || scissor.extent.height == 0)
+                    return;
+
+                if (scissor.extent.width == renderTarget.backing->dimensions.width && scissor.extent.width == renderTarget.backing->dimensions.width && renderTarget.range.baseArrayLayer == 0 && renderTarget.range.layerCount == 1 && clear.layerId == 0) {
+                    executor.AddClearSubpass(renderTarget, clearColorValue);
+                } else {
+                    executor.AddSubpass([aspect, clearColorValue = clearColorValue, layerId = clear.layerId, scissor](vk::raii::CommandBuffer &commandBuffer, const std::shared_ptr<FenceCycle> &, GPU &) {
+                        commandBuffer.clearAttachments(vk::ClearAttachment{
+                            .aspectMask = aspect,
+                            .colorAttachment = 0,
+                            .clearValue = clearColorValue,
+                        }, vk::ClearRect{
+                            .rect = scissor,
+                            .baseArrayLayer = layerId,
+                            .layerCount = 1,
+                        });
+                    }, vk::Rect2D{
+                        .extent = renderTarget.backing->dimensions,
+                    }, {}, {renderTarget});
+                }
             }
         }
 

app/src/main/cpp/skyline/gpu/presentation_engine.cpp

@@ -53,7 +53,7 @@ namespace skyline::gpu {
         engine->vsyncEvent->Signal();
 
         // Post the frame callback to be triggered on the next display refresh
-        AChoreographer_postFrameCallback64(AChoreographer_getInstance(), reinterpret_cast<AChoreographer_frameCallback>(&ChoreographerCallback), engine);
+        AChoreographer_postFrameCallback64(AChoreographer_getInstance(), reinterpret_cast<AChoreographer_frameCallback64>(&ChoreographerCallback), engine);
     }
 
     void PresentationEngine::ChoreographerThread() {
@@ -61,7 +61,7 @@ namespace skyline::gpu {
         try {
             signal::SetSignalHandler({SIGINT, SIGILL, SIGTRAP, SIGBUS, SIGFPE, SIGSEGV}, signal::ExceptionalSignalHandler);
             choreographerLooper = ALooper_prepare(0);
-            AChoreographer_postFrameCallback64(AChoreographer_getInstance(), reinterpret_cast<AChoreographer_frameCallback>(&ChoreographerCallback), this);
+            AChoreographer_postFrameCallback64(AChoreographer_getInstance(), reinterpret_cast<AChoreographer_frameCallback64>(&ChoreographerCallback), this);
             ALooper_pollAll(-1, nullptr, nullptr, nullptr); // Will block and process callbacks till ALooper_wake() is called
         } catch (const signal::SignalException &e) {
             state.logger->Error("{}\nStack Trace:{}", e.what(), state.loader->GetStackTrace(e.frames));
@@ -122,6 +122,11 @@ namespace skyline::gpu {
         if ((capabilities.supportedUsageFlags & presentUsage) != presentUsage)
             throw exception("Swapchain doesn't support image usage '{}': {}", vk::to_string(presentUsage), vk::to_string(capabilities.supportedUsageFlags));
 
+        auto requestedMode{state.settings->disableFrameThrottling ? vk::PresentModeKHR::eMailbox : vk::PresentModeKHR::eFifo};
+        auto modes{gpu.vkPhysicalDevice.getSurfacePresentModesKHR(**vkSurface)};
+        if (std::find(modes.begin(), modes.end(), requestedMode) == modes.end())
+            throw exception("Swapchain doesn't support present mode: {}", vk::to_string(requestedMode));
+
         vkSwapchain.emplace(gpu.vkDevice, vk::SwapchainCreateInfoKHR{
             .surface = **vkSurface,
             .minImageCount = minImageCount,
@@ -132,7 +137,7 @@ namespace skyline::gpu {
             .imageUsage = presentUsage,
             .imageSharingMode = vk::SharingMode::eExclusive,
             .compositeAlpha = vk::CompositeAlphaFlagBitsKHR::eInherit,
-            .presentMode = state.settings->disableFrameThrottling ? vk::PresentModeKHR::eMailbox : vk::PresentModeKHR::eFifo,
+            .presentMode = requestedMode,
             .clipped = true,
         });
 

app/src/main/cpp/skyline/gpu/texture/format.h

@@ -9,11 +9,24 @@ namespace skyline::gpu::format {
     using Format = gpu::texture::FormatBase;
     using vkf = vk::Format;
     using vka = vk::ImageAspectFlagBits;
+    using swc = gpu::texture::SwizzleChannel;
 
-    constexpr Format R8G8B8A8Unorm{sizeof(u32), 1, 1, vkf::eR8G8B8A8Unorm, vka::eColor};
-    constexpr Format R5G6B5Unorm{sizeof(u16), 1, 1, vkf::eR5G6B5UnormPack16, vka::eColor};
-    constexpr Format A2B10G10R10Unorm{sizeof(u32), 1, 1, vkf::eA2B10G10R10UnormPack32, vka::eColor};
-    constexpr Format A8B8G8R8Srgb{sizeof(u32), 1, 1, vkf::eA8B8G8R8SrgbPack32, vka::eColor};
+    constexpr Format R8G8B8A8Unorm{sizeof(u32), vkf::eR8G8B8A8Unorm};
+    constexpr Format R5G6B5Unorm{sizeof(u16), vkf::eR5G6B5UnormPack16};
+    constexpr Format A2B10G10R10Unorm{sizeof(u32), vkf::eA2B10G10R10UnormPack32};
+    constexpr Format A8B8G8R8Srgb{sizeof(u32), vkf::eA8B8G8R8SrgbPack32};
+    constexpr Format R16G16Snorm{sizeof(u32), vkf::eR16G16Snorm};
+    constexpr Format R16G16Float{sizeof(u32), vkf::eR16G16Sfloat};
+    constexpr Format B10G11R11Float{sizeof(u32), vkf::eB10G11R11UfloatPack32};
+    constexpr Format R32Float{sizeof(u32), vkf::eR32Sfloat};
+    constexpr Format R8G8Snorm{sizeof(u16), vkf::eR8G8Snorm};
+    constexpr Format R16Float{sizeof(u16), vkf::eR16Sfloat};
+    constexpr Format R8Unorm{sizeof(u8), vkf::eR8Unorm};
+    constexpr Format R32B32G32A32Float{sizeof(u32) * 4, vkf::eR32G32B32A32Sfloat, .swizzle = {
+        .blue = swc::Green,
+        .green = swc::Blue,
+    }};
+    constexpr Format R16G16B16A16Float{sizeof(u16) * 4, vkf::eR16G16B16A16Sfloat};
 
     /**
      * @brief Converts a Vulkan format to a Skyline format
@@ -28,6 +41,22 @@ namespace skyline::gpu::format {
                 return A2B10G10R10Unorm;
             case vk::Format::eA8B8G8R8SrgbPack32:
                 return A8B8G8R8Srgb;
+            case vk::Format::eR16G16Snorm:
+                return R16G16Snorm;
+            case vk::Format::eR16G16Sfloat:
+                return R16G16Float;
+            case vk::Format::eB10G11R11UfloatPack32:
+                return B10G11R11Float;
+            case vk::Format::eR32Sfloat:
+                return format::R32Float;
+            case vk::Format::eR16Sfloat:
+                return R16Float;
+            case vk::Format::eR8G8Snorm:
+                return R8G8Snorm;
+            case vk::Format::eR8Unorm:
+                return R8Unorm;
+            case vk::Format::eR16G16B16A16Sfloat:
+                return R16G16B16A16Float;
             default:
                 throw exception("Vulkan format not supported: '{}'", vk::to_string(format));
         }

app/src/main/cpp/skyline/gpu/texture/texture.cpp

@@ -101,8 +101,9 @@ namespace skyline::gpu {
     }
 
     void Texture::WaitOnFence() {
-        if (cycle) {
-            cycle->Wait();
+        auto lCycle{cycle.lock()};
+        if (lCycle) {
+            lCycle->Wait();
             cycle.reset();
         }
     }
@@ -232,7 +233,7 @@ namespace skyline::gpu {
                 throw exception("Backing properties changing during sync is not supported");
             WaitOnFence();
 
-            cycle = gpu.scheduler.Submit([&](vk::raii::CommandBuffer &commandBuffer) {
+            auto lCycle{gpu.scheduler.Submit([&](vk::raii::CommandBuffer &commandBuffer) {
                 auto image{GetBacking()};
                 if (layout != vk::ImageLayout::eTransferDstOptimal) {
                     commandBuffer.pipelineBarrier(layout != vk::ImageLayout::eUndefined ? vk::PipelineStageFlagBits::eTopOfPipe : vk::PipelineStageFlagBits::eBottomOfPipe, vk::PipelineStageFlagBits::eTransfer, {}, {}, {}, vk::ImageMemoryBarrier{
@@ -277,8 +278,9 @@ namespace skyline::gpu {
                             .layerCount = 1,
                         },
                     });
-            });
-            cycle->AttachObjects(stagingBuffer, shared_from_this());
+            })};
+            lCycle->AttachObjects(stagingBuffer, shared_from_this());
+            cycle = lCycle;
         }
     }
 
@@ -309,7 +311,7 @@ namespace skyline::gpu {
         else if (source->format != format)
             throw exception("Cannot copy from image with different format");
 
-        cycle = gpu.scheduler.Submit([&](vk::raii::CommandBuffer &commandBuffer) {
+        auto lCycle{gpu.scheduler.Submit([&](vk::raii::CommandBuffer &commandBuffer) {
             auto sourceBacking{source->GetBacking()};
             if (source->layout != vk::ImageLayout::eTransferSrcOptimal) {
                 commandBuffer.pipelineBarrier(vk::PipelineStageFlagBits::eTopOfPipe, vk::PipelineStageFlagBits::eTransfer, {}, {}, {}, vk::ImageMemoryBarrier{
@@ -377,8 +379,9 @@ namespace skyline::gpu {
                     .dstQueueFamilyIndex = VK_QUEUE_FAMILY_IGNORED,
                     .subresourceRange = subresource,
                 });
-        });
-        cycle->AttachObjects(std::move(source), shared_from_this());
+        })};
+        lCycle->AttachObjects(std::move(source), shared_from_this());
+        cycle = lCycle;
     }
 
     TextureView::TextureView(std::shared_ptr<Texture> backing, vk::ImageViewType type, vk::ImageSubresourceRange range, texture::Format format, vk::ComponentMapping mapping) : backing(std::move(backing)), type(type), format(format), mapping(mapping), range(range) {}

app/src/main/cpp/skyline/gpu/texture/texture.h

@@ -58,15 +58,58 @@ namespace skyline::gpu {
             }
         };
 
+        enum class SwizzleChannel : u8 {
+            Zero, //!< Write 0 to the channel
+            One, //!< Write 1 to the channel
+            Red, //!< Red color channel
+            Green, //!< Green color channel
+            Blue, //!< Blue color channel
+            Alpha, //!< Alpha channel
+        };
+
+        struct Swizzle {
+            SwizzleChannel red{SwizzleChannel::Red}; //!< Swizzle for the red channel
+            SwizzleChannel green{SwizzleChannel::Green}; //!< Swizzle for the green channel
+            SwizzleChannel blue{SwizzleChannel::Blue}; //!< Swizzle for the blue channel
+            SwizzleChannel alpha{SwizzleChannel::Alpha}; //!< Swizzle for the alpha channel
+
+            constexpr operator vk::ComponentMapping() {
+                auto swizzleConvert{[](SwizzleChannel channel) {
+                    switch (channel) {
+                        case SwizzleChannel::Zero:
+                            return vk::ComponentSwizzle::eZero;
+                        case SwizzleChannel::One:
+                            return vk::ComponentSwizzle::eOne;
+                        case SwizzleChannel::Red:
+                            return vk::ComponentSwizzle::eR;
+                        case SwizzleChannel::Green:
+                            return vk::ComponentSwizzle::eG;
+                        case SwizzleChannel::Blue:
+                            return vk::ComponentSwizzle::eB;
+                        case SwizzleChannel::Alpha:
+                            return vk::ComponentSwizzle::eA;
+                    }
+                }};
+
+                return vk::ComponentMapping{
+                    .r = swizzleConvert(red),
+                    .g = swizzleConvert(green),
+                    .b = swizzleConvert(blue),
+                    .a = swizzleConvert(alpha),
+                };
+            }
+        };
+
         /**
          * @note Blocks refers to the atomic unit of a compressed format (IE: The minimum amount of data that can be decompressed)
          */
         struct FormatBase {
             u8 bpb{}; //!< Bytes Per Block, this is used instead of bytes per pixel as that might not be a whole number for compressed formats
-            u16 blockHeight{}; //!< The height of a block in pixels
-            u16 blockWidth{}; //!< The width of a block in pixels
             vk::Format vkFormat{vk::Format::eUndefined};
             vk::ImageAspectFlags vkAspect{vk::ImageAspectFlagBits::eColor};
+            Swizzle swizzle{};
+            u16 blockHeight{1}; //!< The height of a block in pixels
+            u16 blockWidth{1}; //!< The width of a block in pixels
 
             constexpr bool IsCompressed() const {
                 return (blockHeight != 1) || (blockWidth != 1);
@@ -182,48 +225,6 @@ namespace skyline::gpu {
             }
         };
 
-        enum class SwizzleChannel : u8 {
-            Zero, //!< Write 0 to the channel
-            One, //!< Write 1 to the channel
-            Red, //!< Red color channel
-            Green, //!< Green color channel
-            Blue, //!< Blue color channel
-            Alpha, //!< Alpha channel
-        };
-
-        struct Swizzle {
-            SwizzleChannel red{SwizzleChannel::Red}; //!< Swizzle for the red channel
-            SwizzleChannel green{SwizzleChannel::Green}; //!< Swizzle for the green channel
-            SwizzleChannel blue{SwizzleChannel::Blue}; //!< Swizzle for the blue channel
-            SwizzleChannel alpha{SwizzleChannel::Alpha}; //!< Swizzle for the alpha channel
-
-            constexpr operator vk::ComponentMapping() {
-                auto swizzleConvert{[](SwizzleChannel channel) {
-                    switch (channel) {
-                        case SwizzleChannel::Zero:
-                            return vk::ComponentSwizzle::eZero;
-                        case SwizzleChannel::One:
-                            return vk::ComponentSwizzle::eOne;
-                        case SwizzleChannel::Red:
-                            return vk::ComponentSwizzle::eR;
-                        case SwizzleChannel::Green:
-                            return vk::ComponentSwizzle::eG;
-                        case SwizzleChannel::Blue:
-                            return vk::ComponentSwizzle::eB;
-                        case SwizzleChannel::Alpha:
-                            return vk::ComponentSwizzle::eA;
-                    }
-                }};
-
-                return vk::ComponentMapping{
-                    .r = swizzleConvert(red),
-                    .g = swizzleConvert(green),
-                    .b = swizzleConvert(blue),
-                    .a = swizzleConvert(alpha),
-                };
-            }
-        };
-
         /**
          * @brief The type of a texture to determine the access patterns for it
          * @note This is effectively the Tegra X1 texture types with the 1DBuffer + 2DNoMipmap removed as those are handled elsewhere
@@ -314,7 +315,7 @@ namespace skyline::gpu {
         friend TextureView;
 
       public:
-        std::shared_ptr<FenceCycle> cycle; //!< A fence cycle for when any host operation mutating the texture has completed, it must be waited on prior to any mutations to the backing
+        std::weak_ptr<FenceCycle> cycle; //!< A fence cycle for when any host operation mutating the texture has completed, it must be waited on prior to any mutations to the backing
         std::optional<GuestTexture> guest;
         texture::Dimensions dimensions;
         texture::Format format;

app/src/main/cpp/skyline/loader/loader.cpp

@@ -84,7 +84,7 @@ namespace skyline::loader {
             size_t length{};
             std::unique_ptr<char, decltype(&std::free)> demangled{abi::__cxa_demangle(symbol.name, nullptr, &length, &status), std::free};
 
-            return fmt::format("\n* 0x{:X} ({} from {})", reinterpret_cast<uintptr_t>(pointer), (status == 0) ? std::string(demangled.get()) : symbol.name, symbol.executableName);
+            return fmt::format("\n* 0x{:X} ({} from {})", reinterpret_cast<uintptr_t>(pointer), (status == 0) ? std::string_view(demangled.get()) : symbol.name, symbol.executableName);
         } else if (!symbol.executableName.empty()) {
             return fmt::format("\n* 0x{:X} (from {})", reinterpret_cast<uintptr_t>(pointer), symbol.executableName);
         } else if (dladdr(pointer, &info)) {
@@ -92,7 +92,7 @@ namespace skyline::loader {
             size_t length{};
             std::unique_ptr<char, decltype(&std::free)> demangled{abi::__cxa_demangle(info.dli_sname, nullptr, &length, &status), std::free};
 
-            return fmt::format("\n* 0x{:X} ({} from {})", reinterpret_cast<uintptr_t>(pointer), (status == 0) ? std::string(demangled.get()) : info.dli_sname, info.dli_fname);
+            return fmt::format("\n* 0x{:X} ({} from {})", reinterpret_cast<uintptr_t>(pointer), (status == 0) ? std::string_view(demangled.get()) : info.dli_sname ? info.dli_sname : "Unresolved", info.dli_fname ? info.dli_fname : "Unresolved");
         } else {
             return fmt::format("\n* 0x{:X}", reinterpret_cast<uintptr_t>(pointer));
         }

app/src/main/cpp/skyline/soc/gm20b/engines/maxwell/types.h

@@ -42,9 +42,18 @@ namespace skyline::soc::gm20b::engine::maxwell3d::type {
 
         enum class ColorFormat : u32 {
             None = 0x0,
+            R32B32G32A32Float = 0xC0,
+            R16G16B16A16Float = 0xCA,
             A2B10G10R10Unorm = 0xD1,
             R8G8B8A8Unorm = 0xD5,
             A8B8G8R8Srgb = 0xD6,
+            R16G16Snorm = 0xDB,
+            R16G16Float = 0xDE,
+            B10G11R11Float = 0xE0,
+            R32Float = 0xE5,
+            R8G8Snorm = 0xEB,
+            R16Float = 0xF2,
+            R8Unorm = 0xF3,
         } format;
 
         struct TileMode {