bootmanager: Bypass input focus issues

While we are at it, remove nullptr checks for deletion, since the C++
standard defines that delete does it by its own

CMakeModules/CopyYuzuQt5Deps.cmake

@@ -45,5 +45,8 @@ function(copy_yuzu_Qt5_deps target_dir)
 
     windows_copy_files(yuzu ${Qt5_PLATFORMS_DIR} ${PLATFORMS} qwindows$<$<CONFIG:Debug>:d>.*)
     windows_copy_files(yuzu ${Qt5_STYLES_DIR} ${STYLES} qwindowsvistastyle$<$<CONFIG:Debug>:d>.*)
-    windows_copy_files(yuzu ${Qt5_IMAGEFORMATS_DIR} ${IMAGEFORMATS} qjpeg$<$<CONFIG:Debug>:d>.*)
+    windows_copy_files(yuzu ${Qt5_IMAGEFORMATS_DIR} ${IMAGEFORMATS}
+        qjpeg$<$<CONFIG:Debug>:d>.*
+        qgif$<$<CONFIG:Debug>:d>.*
+        )
 endfunction(copy_yuzu_Qt5_deps)

src/core/core.cpp

@@ -443,27 +443,31 @@ std::shared_ptr<FileSys::VfsFilesystem> System::GetFilesystem() const {
     return impl->virtual_filesystem;
 }
 
-void System::SetProfileSelector(std::unique_ptr<Core::Frontend::ProfileSelectApplet> applet) {
+void System::SetProfileSelector(std::unique_ptr<Frontend::ProfileSelectApplet> applet) {
     impl->profile_selector = std::move(applet);
 }
 
-const Core::Frontend::ProfileSelectApplet& System::GetProfileSelector() const {
+const Frontend::ProfileSelectApplet& System::GetProfileSelector() const {
     return *impl->profile_selector;
 }
 
-void System::SetSoftwareKeyboard(std::unique_ptr<Core::Frontend::SoftwareKeyboardApplet> applet) {
+void System::SetSoftwareKeyboard(std::unique_ptr<Frontend::SoftwareKeyboardApplet> applet) {
     impl->software_keyboard = std::move(applet);
 }
 
-const Core::Frontend::SoftwareKeyboardApplet& System::GetSoftwareKeyboard() const {
+const Frontend::SoftwareKeyboardApplet& System::GetSoftwareKeyboard() const {
     return *impl->software_keyboard;
 }
 
-void System::SetWebBrowser(std::unique_ptr<Core::Frontend::WebBrowserApplet> applet) {
+void System::SetWebBrowser(std::unique_ptr<Frontend::WebBrowserApplet> applet) {
     impl->web_browser = std::move(applet);
 }
 
-const Core::Frontend::WebBrowserApplet& System::GetWebBrowser() const {
+Frontend::WebBrowserApplet& System::GetWebBrowser() {
+    return *impl->web_browser;
+}
+
+const Frontend::WebBrowserApplet& System::GetWebBrowser() const {
     return *impl->web_browser;
 }
 

src/core/core.h

@@ -243,17 +243,18 @@ public:
 
     std::shared_ptr<FileSys::VfsFilesystem> GetFilesystem() const;
 
-    void SetProfileSelector(std::unique_ptr<Core::Frontend::ProfileSelectApplet> applet);
+    void SetProfileSelector(std::unique_ptr<Frontend::ProfileSelectApplet> applet);
 
-    const Core::Frontend::ProfileSelectApplet& GetProfileSelector() const;
+    const Frontend::ProfileSelectApplet& GetProfileSelector() const;
 
-    void SetSoftwareKeyboard(std::unique_ptr<Core::Frontend::SoftwareKeyboardApplet> applet);
+    void SetSoftwareKeyboard(std::unique_ptr<Frontend::SoftwareKeyboardApplet> applet);
 
-    const Core::Frontend::SoftwareKeyboardApplet& GetSoftwareKeyboard() const;
+    const Frontend::SoftwareKeyboardApplet& GetSoftwareKeyboard() const;
 
-    void SetWebBrowser(std::unique_ptr<Core::Frontend::WebBrowserApplet> applet);
+    void SetWebBrowser(std::unique_ptr<Frontend::WebBrowserApplet> applet);
 
-    const Core::Frontend::WebBrowserApplet& GetWebBrowser() const;
+    Frontend::WebBrowserApplet& GetWebBrowser();
+    const Frontend::WebBrowserApplet& GetWebBrowser() const;
 
 private:
     System();

src/core/file_sys/content_archive.cpp

@@ -359,6 +359,8 @@ bool NCA::ReadPFS0Section(const NCASectionHeader& section, const NCASectionTable
             dirs.push_back(std::move(npfs));
             if (IsDirectoryExeFS(dirs.back()))
                 exefs = dirs.back();
+            else if (IsDirectoryLogoPartition(dirs.back()))
+                logo = dirs.back();
         } else {
             if (has_rights_id)
                 status = Loader::ResultStatus::ErrorIncorrectTitlekeyOrTitlekek;
@@ -546,4 +548,8 @@ u64 NCA::GetBaseIVFCOffset() const {
     return ivfc_offset;
 }
 
+VirtualDir NCA::GetLogoPartition() const {
+    return logo;
+}
+
 } // namespace FileSys

src/core/file_sys/content_archive.h

@@ -74,6 +74,13 @@ inline bool IsDirectoryExeFS(const std::shared_ptr<VfsDirectory>& pfs) {
     return pfs->GetFile("main") != nullptr && pfs->GetFile("main.npdm") != nullptr;
 }
 
+inline bool IsDirectoryLogoPartition(const VirtualDir& pfs) {
+    // NintendoLogo is the static image in the top left corner while StartupMovie is the animation
+    // in the bottom right corner.
+    return pfs->GetFile("NintendoLogo.png") != nullptr &&
+           pfs->GetFile("StartupMovie.gif") != nullptr;
+}
+
 // An implementation of VfsDirectory that represents a Nintendo Content Archive (NCA) conatiner.
 // After construction, use GetStatus to determine if the file is valid and ready to be used.
 class NCA : public ReadOnlyVfsDirectory {
@@ -102,6 +109,8 @@ public:
     // Returns the base ivfc offset used in BKTR patching.
     u64 GetBaseIVFCOffset() const;
 
+    VirtualDir GetLogoPartition() const;
+
 private:
     bool CheckSupportedNCA(const NCAHeader& header);
     bool HandlePotentialHeaderDecryption();
@@ -122,6 +131,7 @@ private:
 
     VirtualFile romfs = nullptr;
     VirtualDir exefs = nullptr;
+    VirtualDir logo = nullptr;
     VirtualFile file;
     VirtualFile bktr_base_romfs;
     u64 ivfc_offset = 0;

src/core/file_sys/directory.h

@@ -39,27 +39,4 @@ static_assert(sizeof(Entry) == 0x310, "Directory Entry struct isn't exactly 0x31
 static_assert(offsetof(Entry, type) == 0x304, "Wrong offset for type in Entry.");
 static_assert(offsetof(Entry, file_size) == 0x308, "Wrong offset for file_size in Entry.");
 
-class DirectoryBackend : NonCopyable {
-public:
-    DirectoryBackend() {}
-    virtual ~DirectoryBackend() {}
-
-    /**
-     * List files contained in the directory
-     * @param count Number of entries to return at once in entries
-     * @param entries Buffer to read data into
-     * @return Number of entries listed
-     */
-    virtual u64 Read(const u64 count, Entry* entries) = 0;
-
-    /// Returns the number of entries still left to read.
-    virtual u64 GetEntryCount() const = 0;
-
-    /**
-     * Close the directory
-     * @return true if the directory closed correctly
-     */
-    virtual bool Close() const = 0;
-};
-
 } // namespace FileSys

src/core/frontend/applets/web_browser.cpp

@@ -13,7 +13,7 @@ DefaultWebBrowserApplet::~DefaultWebBrowserApplet() = default;
 
 void DefaultWebBrowserApplet::OpenPage(std::string_view filename,
                                        std::function<void()> unpack_romfs_callback,
-                                       std::function<void()> finished_callback) const {
+                                       std::function<void()> finished_callback) {
     LOG_INFO(Service_AM,
              "(STUBBED) called - No suitable web browser implementation found to open website page "
              "at '{}'!",

src/core/frontend/applets/web_browser.h

@@ -14,7 +14,7 @@ public:
     virtual ~WebBrowserApplet();
 
     virtual void OpenPage(std::string_view url, std::function<void()> unpack_romfs_callback,
-                          std::function<void()> finished_callback) const = 0;
+                          std::function<void()> finished_callback) = 0;
 };
 
 class DefaultWebBrowserApplet final : public WebBrowserApplet {
@@ -22,7 +22,7 @@ public:
     ~DefaultWebBrowserApplet() override;
 
     void OpenPage(std::string_view url, std::function<void()> unpack_romfs_callback,
-                  std::function<void()> finished_callback) const override;
+                  std::function<void()> finished_callback) override;
 };
 
 } // namespace Core::Frontend

src/core/frontend/emu_window.h

@@ -12,6 +12,23 @@
 
 namespace Core::Frontend {
 
+/**
+ * Represents a graphics context that can be used for background computation or drawing. If the
+ * graphics backend doesn't require the context, then the implementation of these methods can be
+ * stubs
+ */
+class GraphicsContext {
+public:
+    /// Makes the graphics context current for the caller thread
+    virtual void MakeCurrent() = 0;
+
+    /// Releases (dunno if this is the "right" word) the context from the caller thread
+    virtual void DoneCurrent() = 0;
+
+    /// Swap buffers to display the next frame
+    virtual void SwapBuffers() = 0;
+};
+
 /**
  * Abstraction class used to provide an interface between emulation code and the frontend
  * (e.g. SDL, QGLWidget, GLFW, etc...).
@@ -30,7 +47,7 @@ namespace Core::Frontend {
  * - DO NOT TREAT THIS CLASS AS A GUI TOOLKIT ABSTRACTION LAYER. That's not what it is. Please
  *   re-read the upper points again and think about it if you don't see this.
  */
-class EmuWindow {
+class EmuWindow : public GraphicsContext {
 public:
     /// Data structure to store emuwindow configuration
     struct WindowConfig {
@@ -40,17 +57,21 @@ public:
         std::pair<unsigned, unsigned> min_client_area_size;
     };
 
-    /// Swap buffers to display the next frame
-    virtual void SwapBuffers() = 0;
-
     /// Polls window events
     virtual void PollEvents() = 0;
 
-    /// Makes the graphics context current for the caller thread
-    virtual void MakeCurrent() = 0;
-
-    /// Releases (dunno if this is the "right" word) the GLFW context from the caller thread
-    virtual void DoneCurrent() = 0;
+    /**
+     * Returns a GraphicsContext that the frontend provides that is shared with the emu window. This
+     * context can be used from other threads for background graphics computation. If the frontend
+     * is using a graphics backend that doesn't need anything specific to run on a different thread,
+     * then it can use a stubbed implemenation for GraphicsContext.
+     *
+     * If the return value is null, then the core should assume that the frontend cannot provide a
+     * Shared Context
+     */
+    virtual std::unique_ptr<GraphicsContext> CreateSharedContext() const {
+        return nullptr;
+    }
 
     /**
      * Signal that a touch pressed event has occurred (e.g. mouse click pressed)

src/core/hle/service/am/applets/web_browser.cpp

@@ -2,9 +2,16 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include <array>
+#include <cstring>
+#include <vector>
+
+#include "common/assert.h"
+#include "common/common_funcs.h"
 #include "common/common_paths.h"
+#include "common/file_util.h"
 #include "common/hex_util.h"
-#include "common/logging/backend.h"
+#include "common/logging/log.h"
 #include "common/string_util.h"
 #include "core/core.h"
 #include "core/file_sys/content_archive.h"
@@ -12,7 +19,6 @@
 #include "core/file_sys/nca_metadata.h"
 #include "core/file_sys/registered_cache.h"
 #include "core/file_sys/romfs.h"
-#include "core/file_sys/romfs_factory.h"
 #include "core/file_sys/vfs_types.h"
 #include "core/frontend/applets/web_browser.h"
 #include "core/hle/kernel/process.h"
@@ -146,7 +152,7 @@ void WebBrowser::Execute() {
         return;
     }
 
-    const auto& frontend{Core::System::GetInstance().GetWebBrowser()};
+    auto& frontend{Core::System::GetInstance().GetWebBrowser()};
 
     frontend.OpenPage(filename, [this] { UnpackRomFS(); }, [this] { Finalize(); });
 }

src/core/loader/loader.h

@@ -178,6 +178,8 @@ public:
 
     /**
      * Get the banner (typically banner section) of the application
+     * In the context of NX, this is the animation that displays in the bottom right of the screen
+     * when a game boots. Stored in GIF format.
      * @param buffer Reference to buffer to store data
      * @return ResultStatus result of function
      */
@@ -187,6 +189,8 @@ public:
 
     /**
      * Get the logo (typically logo section) of the application
+     * In the context of NX, this is the static image that displays in the top left of the screen
+     * when a game boots. Stored in JPEG format.
      * @param buffer Reference to buffer to store data
      * @return ResultStatus result of function
      */

src/core/loader/nax.cpp

@@ -79,4 +79,13 @@ u64 AppLoader_NAX::ReadRomFSIVFCOffset() const {
 ResultStatus AppLoader_NAX::ReadProgramId(u64& out_program_id) {
     return nca_loader->ReadProgramId(out_program_id);
 }
+
+ResultStatus AppLoader_NAX::ReadBanner(std::vector<u8>& buffer) {
+    return nca_loader->ReadBanner(buffer);
+}
+
+ResultStatus AppLoader_NAX::ReadLogo(std::vector<u8>& buffer) {
+    return nca_loader->ReadLogo(buffer);
+}
+
 } // namespace Loader

src/core/loader/nax.h

@@ -39,6 +39,9 @@ public:
     u64 ReadRomFSIVFCOffset() const override;
     ResultStatus ReadProgramId(u64& out_program_id) override;
 
+    ResultStatus ReadBanner(std::vector<u8>& buffer) override;
+    ResultStatus ReadLogo(std::vector<u8>& buffer) override;
+
 private:
     std::unique_ptr<FileSys::NAX> nax;
     std::unique_ptr<AppLoader_NCA> nca_loader;

src/core/loader/nca.cpp

@@ -84,4 +84,23 @@ ResultStatus AppLoader_NCA::ReadProgramId(u64& out_program_id) {
     return ResultStatus::Success;
 }
 
+ResultStatus AppLoader_NCA::ReadBanner(std::vector<u8>& buffer) {
+    if (nca == nullptr || nca->GetStatus() != ResultStatus::Success)
+        return ResultStatus::ErrorNotInitialized;
+    const auto logo = nca->GetLogoPartition();
+    if (logo == nullptr)
+        return ResultStatus::ErrorNoIcon;
+    buffer = logo->GetFile("StartupMovie.gif")->ReadAllBytes();
+    return ResultStatus::Success;
+}
+
+ResultStatus AppLoader_NCA::ReadLogo(std::vector<u8>& buffer) {
+    if (nca == nullptr || nca->GetStatus() != ResultStatus::Success)
+        return ResultStatus::ErrorNotInitialized;
+    const auto logo = nca->GetLogoPartition();
+    if (logo == nullptr)
+        return ResultStatus::ErrorNoIcon;
+    buffer = logo->GetFile("NintendoLogo.png")->ReadAllBytes();
+    return ResultStatus::Success;
+}
 } // namespace Loader

src/core/loader/nca.h

@@ -39,6 +39,9 @@ public:
     u64 ReadRomFSIVFCOffset() const override;
     ResultStatus ReadProgramId(u64& out_program_id) override;
 
+    ResultStatus ReadBanner(std::vector<u8>& buffer) override;
+    ResultStatus ReadLogo(std::vector<u8>& buffer) override;
+
 private:
     std::unique_ptr<FileSys::NCA> nca;
     std::unique_ptr<AppLoader_DeconstructedRomDirectory> directory_loader;

src/core/loader/nsp.cpp

@@ -166,4 +166,13 @@ ResultStatus AppLoader_NSP::ReadManualRomFS(FileSys::VirtualFile& file) {
     file = nca->GetRomFS();
     return file == nullptr ? ResultStatus::ErrorNoRomFS : ResultStatus::Success;
 }
+
+ResultStatus AppLoader_NSP::ReadBanner(std::vector<u8>& buffer) {
+    return secondary_loader->ReadBanner(buffer);
+}
+
+ResultStatus AppLoader_NSP::ReadLogo(std::vector<u8>& buffer) {
+    return secondary_loader->ReadLogo(buffer);
+}
+
 } // namespace Loader

src/core/loader/nsp.h

@@ -46,6 +46,9 @@ public:
     ResultStatus ReadControlData(FileSys::NACP& nacp) override;
     ResultStatus ReadManualRomFS(FileSys::VirtualFile& file) override;
 
+    ResultStatus ReadBanner(std::vector<u8>& buffer) override;
+    ResultStatus ReadLogo(std::vector<u8>& buffer) override;
+
 private:
     std::unique_ptr<FileSys::NSP> nsp;
     std::unique_ptr<AppLoader> secondary_loader;

src/core/loader/xci.cpp

@@ -137,4 +137,12 @@ ResultStatus AppLoader_XCI::ReadManualRomFS(FileSys::VirtualFile& file) {
     return file == nullptr ? ResultStatus::ErrorNoRomFS : ResultStatus::Success;
 }
 
+ResultStatus AppLoader_XCI::ReadBanner(std::vector<u8>& buffer) {
+    return nca_loader->ReadBanner(buffer);
+}
+
+ResultStatus AppLoader_XCI::ReadLogo(std::vector<u8>& buffer) {
+    return nca_loader->ReadLogo(buffer);
+}
+
 } // namespace Loader

src/core/loader/xci.h

@@ -46,6 +46,9 @@ public:
     ResultStatus ReadControlData(FileSys::NACP& control) override;
     ResultStatus ReadManualRomFS(FileSys::VirtualFile& file) override;
 
+    ResultStatus ReadBanner(std::vector<u8>& buffer) override;
+    ResultStatus ReadLogo(std::vector<u8>& buffer) override;
+
 private:
     std::unique_ptr<FileSys::XCI> xci;
     std::unique_ptr<AppLoader_NCA> nca_loader;

src/video_core/engines/maxwell_3d.cpp

@@ -135,6 +135,25 @@ void Maxwell3D::CallMethod(const GPU::MethodCall& method_call) {
 
     if (regs.reg_array[method_call.method] != method_call.argument) {
         regs.reg_array[method_call.method] = method_call.argument;
+        // Color buffers
+        constexpr u32 first_rt_reg = MAXWELL3D_REG_INDEX(rt);
+        constexpr u32 registers_per_rt = sizeof(regs.rt[0]) / sizeof(u32);
+        if (method_call.method >= first_rt_reg &&
+            method_call.method < first_rt_reg + registers_per_rt * Regs::NumRenderTargets) {
+            const std::size_t rt_index = (method_call.method - first_rt_reg) / registers_per_rt;
+            dirty_flags.color_buffer |= 1u << static_cast<u32>(rt_index);
+        }
+
+        // Zeta buffer
+        constexpr u32 registers_in_zeta = sizeof(regs.zeta) / sizeof(u32);
+        if (method_call.method == MAXWELL3D_REG_INDEX(zeta_enable) ||
+            method_call.method == MAXWELL3D_REG_INDEX(zeta_width) ||
+            method_call.method == MAXWELL3D_REG_INDEX(zeta_height) ||
+            (method_call.method >= MAXWELL3D_REG_INDEX(zeta) &&
+             method_call.method < MAXWELL3D_REG_INDEX(zeta) + registers_in_zeta)) {
+            dirty_flags.zeta_buffer = true;
+        }
+
         // Shader
         constexpr u32 shader_registers_count =
             sizeof(regs.shader_config[0]) * Regs::MaxShaderProgram / sizeof(u32);

src/video_core/engines/maxwell_3d.h

@@ -1089,12 +1089,17 @@ public:
     MemoryManager& memory_manager;
 
     struct DirtyFlags {
+        u8 color_buffer = 0xFF;
+        bool zeta_buffer = true;
+
         bool shaders = true;
 
         bool vertex_attrib_format = true;
         u32 vertex_array = 0xFFFFFFFF;
 
         void OnMemoryWrite() {
+            color_buffer = 0xFF;
+            zeta_buffer = true;
             shaders = true;
             vertex_array = 0xFFFFFFFF;
         }

src/video_core/rasterizer_interface.h

@@ -4,6 +4,7 @@
 
 #pragma once
 
+#include <functional>
 #include "common/common_types.h"
 #include "video_core/engines/fermi_2d.h"
 #include "video_core/gpu.h"
@@ -11,6 +12,14 @@
 
 namespace VideoCore {
 
+enum class LoadCallbackStage {
+    Prepare,
+    Decompile,
+    Build,
+    Complete,
+};
+using DiskResourceLoadCallback = std::function<void(LoadCallbackStage, std::size_t, std::size_t)>;
+
 class RasterizerInterface {
 public:
     virtual ~RasterizerInterface() {}

src/video_core/renderer_opengl/gl_buffer_cache.cpp

@@ -14,7 +14,7 @@
 namespace OpenGL {
 
 OGLBufferCache::OGLBufferCache(RasterizerOpenGL& rasterizer, std::size_t size)
-    : RasterizerCache{rasterizer}, stream_buffer(GL_ARRAY_BUFFER, size) {}
+    : RasterizerCache{rasterizer}, stream_buffer(size, true) {}
 
 GLintptr OGLBufferCache::UploadMemory(Tegra::GPUVAddr gpu_addr, std::size_t size,
                                       std::size_t alignment, bool cache) {

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -135,27 +135,31 @@ void RasterizerOpenGL::CheckExtensions() {
     }
 }
 
-void RasterizerOpenGL::SetupVertexFormat() {
+GLuint RasterizerOpenGL::SetupVertexFormat() {
     auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
     const auto& regs = gpu.regs;
 
-    if (!gpu.dirty_flags.vertex_attrib_format)
-        return;
+    if (!gpu.dirty_flags.vertex_attrib_format) {
+        return state.draw.vertex_array;
+    }
     gpu.dirty_flags.vertex_attrib_format = false;
 
     MICROPROFILE_SCOPE(OpenGL_VAO);
 
     auto [iter, is_cache_miss] = vertex_array_cache.try_emplace(regs.vertex_attrib_format);
-    auto& VAO = iter->second;
+    auto& vao_entry = iter->second;
 
     if (is_cache_miss) {
-        VAO.Create();
-        state.draw.vertex_array = VAO.handle;
-        state.ApplyVertexBufferState();
+        vao_entry.Create();
+        const GLuint vao = vao_entry.handle;
 
-        // The index buffer binding is stored within the VAO. Stupid OpenGL, but easy to work
-        // around.
-        glBindBuffer(GL_ELEMENT_ARRAY_BUFFER, buffer_cache.GetHandle());
+        // Eventhough we are using DSA to create this vertex array, there is a bug on Intel's blob
+        // that fails to properly create the vertex array if it's not bound even after creating it
+        // with glCreateVertexArrays
+        state.draw.vertex_array = vao;
+        state.ApplyVertexArrayState();
+
+        glVertexArrayElementBuffer(vao, buffer_cache.GetHandle());
 
         // Use the vertex array as-is, assumes that the data is formatted correctly for OpenGL.
         // Enables the first 16 vertex attributes always, as we don't know which ones are actually
@@ -163,7 +167,7 @@ void RasterizerOpenGL::SetupVertexFormat() {
         // for now to avoid OpenGL errors.
         // TODO(Subv): Analyze the shader to identify which attributes are actually used and don't
         // assume every shader uses them all.
-        for (unsigned index = 0; index < 16; ++index) {
+        for (u32 index = 0; index < 16; ++index) {
             const auto& attrib = regs.vertex_attrib_format[index];
 
             // Ignore invalid attributes.
@@ -178,28 +182,29 @@ void RasterizerOpenGL::SetupVertexFormat() {
 
             ASSERT(buffer.IsEnabled());
 
-            glEnableVertexAttribArray(index);
+            glEnableVertexArrayAttrib(vao, index);
             if (attrib.type == Tegra::Engines::Maxwell3D::Regs::VertexAttribute::Type::SignedInt ||
                 attrib.type ==
                     Tegra::Engines::Maxwell3D::Regs::VertexAttribute::Type::UnsignedInt) {
-                glVertexAttribIFormat(index, attrib.ComponentCount(),
-                                      MaxwellToGL::VertexType(attrib), attrib.offset);
+                glVertexArrayAttribIFormat(vao, index, attrib.ComponentCount(),
+                                           MaxwellToGL::VertexType(attrib), attrib.offset);
             } else {
-                glVertexAttribFormat(index, attrib.ComponentCount(),
-                                     MaxwellToGL::VertexType(attrib),
-                                     attrib.IsNormalized() ? GL_TRUE : GL_FALSE, attrib.offset);
+                glVertexArrayAttribFormat(
+                    vao, index, attrib.ComponentCount(), MaxwellToGL::VertexType(attrib),
+                    attrib.IsNormalized() ? GL_TRUE : GL_FALSE, attrib.offset);
             }
-            glVertexAttribBinding(index, attrib.buffer);
+            glVertexArrayAttribBinding(vao, index, attrib.buffer);
         }
     }
-    state.draw.vertex_array = VAO.handle;
-    state.ApplyVertexBufferState();
 
     // Rebinding the VAO invalidates the vertex buffer bindings.
     gpu.dirty_flags.vertex_array = 0xFFFFFFFF;
+
+    state.draw.vertex_array = vao_entry.handle;
+    return vao_entry.handle;
 }
 
-void RasterizerOpenGL::SetupVertexBuffer() {
+void RasterizerOpenGL::SetupVertexBuffer(GLuint vao) {
     auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
     const auto& regs = gpu.regs;
 
@@ -217,7 +222,7 @@ void RasterizerOpenGL::SetupVertexBuffer() {
         if (!vertex_array.IsEnabled())
             continue;
 
-        Tegra::GPUVAddr start = vertex_array.StartAddress();
+        const Tegra::GPUVAddr start = vertex_array.StartAddress();
         const Tegra::GPUVAddr end = regs.vertex_array_limit[index].LimitAddress();
 
         ASSERT(end > start);
@@ -225,21 +230,18 @@ void RasterizerOpenGL::SetupVertexBuffer() {
         const GLintptr vertex_buffer_offset = buffer_cache.UploadMemory(start, size);
 
         // Bind the vertex array to the buffer at the current offset.
-        glBindVertexBuffer(index, buffer_cache.GetHandle(), vertex_buffer_offset,
-                           vertex_array.stride);
+        glVertexArrayVertexBuffer(vao, index, buffer_cache.GetHandle(), vertex_buffer_offset,
+                                  vertex_array.stride);
 
         if (regs.instanced_arrays.IsInstancingEnabled(index) && vertex_array.divisor != 0) {
             // Enable vertex buffer instancing with the specified divisor.
-            glVertexBindingDivisor(index, vertex_array.divisor);
+            glVertexArrayBindingDivisor(vao, index, vertex_array.divisor);
         } else {
             // Disable the vertex buffer instancing.
-            glVertexBindingDivisor(index, 0);
+            glVertexArrayBindingDivisor(vao, index, 0);
         }
     }
 
-    // Implicit set by glBindVertexBuffer. Stupid glstate handling...
-    state.draw.vertex_buffer = buffer_cache.GetHandle();
-
     gpu.dirty_flags.vertex_array = 0;
 }
 
@@ -365,7 +367,7 @@ void RasterizerOpenGL::SetupShaders(GLenum primitive_mode) {
         // (sometimes it's half the screen, sometimes three quarters). To avoid this, enable the
         // clip distances only when it's written by a shader stage.
         for (std::size_t i = 0; i < Maxwell::NumClipDistances; ++i) {
-            clip_distances[i] |= shader->GetShaderEntries().clip_distances[i];
+            clip_distances[i] = clip_distances[i] || shader->GetShaderEntries().clip_distances[i];
         }
 
         // When VertexA is enabled, we have dual vertex shaders
@@ -488,7 +490,19 @@ void RasterizerOpenGL::ConfigureFramebuffers(OpenGLState& current_state, bool us
                                              bool using_depth_fb, bool preserve_contents,
                                              std::optional<std::size_t> single_color_target) {
     MICROPROFILE_SCOPE(OpenGL_Framebuffer);
-    const auto& regs = Core::System::GetInstance().GPU().Maxwell3D().regs;
+    const auto& gpu = Core::System::GetInstance().GPU().Maxwell3D();
+    const auto& regs = gpu.regs;
+
+    const FramebufferConfigState fb_config_state{using_color_fb, using_depth_fb, preserve_contents,
+                                                 single_color_target};
+    if (fb_config_state == current_framebuffer_config_state && gpu.dirty_flags.color_buffer == 0 &&
+        !gpu.dirty_flags.zeta_buffer) {
+        // Only skip if the previous ConfigureFramebuffers call was from the same kind (multiple or
+        // single color targets). This is done because the guest registers may not change but the
+        // host framebuffer may contain different attachments
+        return;
+    }
+    current_framebuffer_config_state = fb_config_state;
 
     Surface depth_surface;
     if (using_depth_fb) {
@@ -691,9 +705,6 @@ void RasterizerOpenGL::DrawArrays() {
     // Draw the vertex batch
     const bool is_indexed = accelerate_draw == AccelDraw::Indexed;
 
-    state.draw.vertex_buffer = buffer_cache.GetHandle();
-    state.ApplyVertexBufferState();
-
     std::size_t buffer_size = CalculateVertexArraysSize();
 
     // Add space for index buffer (keeping in mind non-core primitives)
@@ -723,8 +734,9 @@ void RasterizerOpenGL::DrawArrays() {
         gpu.dirty_flags.vertex_array = 0xFFFFFFFF;
     }
 
-    SetupVertexFormat();
-    SetupVertexBuffer();
+    const GLuint vao = SetupVertexFormat();
+    SetupVertexBuffer(vao);
+
     DrawParameters params = SetupDraw();
     SetupShaders(params.primitive_mode);
 

src/video_core/renderer_opengl/gl_rasterizer.h

@@ -99,6 +99,23 @@ private:
         float max_anisotropic = 1.0f;
     };
 
+    struct FramebufferConfigState {
+        bool using_color_fb{};
+        bool using_depth_fb{};
+        bool preserve_contents{};
+        std::optional<std::size_t> single_color_target;
+
+        bool operator==(const FramebufferConfigState& rhs) const {
+            return std::tie(using_color_fb, using_depth_fb, preserve_contents,
+                            single_color_target) == std::tie(rhs.using_color_fb, rhs.using_depth_fb,
+                                                             rhs.preserve_contents,
+                                                             rhs.single_color_target);
+        }
+        bool operator!=(const FramebufferConfigState& rhs) const {
+            return !operator==(rhs);
+        }
+    };
+
     /**
      * Configures the color and depth framebuffer states.
      * @param use_color_fb If true, configure color framebuffers.
@@ -203,6 +220,7 @@ private:
         vertex_array_cache;
 
     std::map<FramebufferCacheKey, OGLFramebuffer> framebuffer_cache;
+    FramebufferConfigState current_framebuffer_config_state;
 
     std::array<SamplerInfo, Tegra::Engines::Maxwell3D::Regs::NumTextureSamplers> texture_samplers;
 
@@ -215,8 +233,10 @@ private:
 
     std::size_t CalculateIndexBufferSize() const;
 
-    void SetupVertexFormat();
-    void SetupVertexBuffer();
+    /// Updates and returns a vertex array object representing current vertex format
+    GLuint SetupVertexFormat();
+
+    void SetupVertexBuffer(GLuint vao);
 
     DrawParameters SetupDraw();
 

src/video_core/renderer_opengl/gl_rasterizer_cache.cpp

@@ -919,9 +919,16 @@ Surface RasterizerCacheOpenGL::GetTextureSurface(const Tegra::Texture::FullTextu
 }
 
 Surface RasterizerCacheOpenGL::GetDepthBufferSurface(bool preserve_contents) {
-    const auto& regs{Core::System::GetInstance().GPU().Maxwell3D().regs};
+    auto& gpu{Core::System::GetInstance().GPU().Maxwell3D()};
+    const auto& regs{gpu.regs};
+
+    if (!gpu.dirty_flags.zeta_buffer) {
+        return last_depth_buffer;
+    }
+    gpu.dirty_flags.zeta_buffer = false;
+
     if (!regs.zeta.Address() || !regs.zeta_enable) {
-        return {};
+        return last_depth_buffer = {};
     }
 
     SurfaceParams depth_params{SurfaceParams::CreateForDepthBuffer(
@@ -929,25 +936,31 @@ Surface RasterizerCacheOpenGL::GetDepthBufferSurface(bool preserve_contents) {
         regs.zeta.memory_layout.block_width, regs.zeta.memory_layout.block_height,
         regs.zeta.memory_layout.block_depth, regs.zeta.memory_layout.type)};
 
-    return GetSurface(depth_params, preserve_contents);
+    return last_depth_buffer = GetSurface(depth_params, preserve_contents);
 }
 
 Surface RasterizerCacheOpenGL::GetColorBufferSurface(std::size_t index, bool preserve_contents) {
-    const auto& regs{Core::System::GetInstance().GPU().Maxwell3D().regs};
+    auto& gpu{Core::System::GetInstance().GPU().Maxwell3D()};
+    const auto& regs{gpu.regs};
+
+    if ((gpu.dirty_flags.color_buffer & (1u << static_cast<u32>(index))) == 0) {
+        return last_color_buffers[index];
+    }
+    gpu.dirty_flags.color_buffer &= ~(1u << static_cast<u32>(index));
 
     ASSERT(index < Tegra::Engines::Maxwell3D::Regs::NumRenderTargets);
 
     if (index >= regs.rt_control.count) {
-        return {};
+        return last_color_buffers[index] = {};
     }
 
     if (regs.rt[index].Address() == 0 || regs.rt[index].format == Tegra::RenderTargetFormat::NONE) {
-        return {};
+        return last_color_buffers[index] = {};
     }
 
     const SurfaceParams color_params{SurfaceParams::CreateForFramebuffer(index)};
 
-    return GetSurface(color_params, preserve_contents);
+    return last_color_buffers[index] = GetSurface(color_params, preserve_contents);
 }
 
 void RasterizerCacheOpenGL::LoadSurface(const Surface& surface) {

src/video_core/renderer_opengl/gl_rasterizer_cache.h

@@ -396,6 +396,9 @@ private:
     /// Use a Pixel Buffer Object to download the previous texture and then upload it to the new one
     /// using the new format.
     OGLBuffer copy_pbo;
+
+    std::array<Surface, Tegra::Engines::Maxwell3D::Regs::NumRenderTargets> last_color_buffers;
+    Surface last_depth_buffer;
 };
 
 } // namespace OpenGL

src/video_core/renderer_opengl/gl_resource_manager.cpp

@@ -117,7 +117,7 @@ void OGLBuffer::Create() {
         return;
 
     MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
-    glGenBuffers(1, &handle);
+    glCreateBuffers(1, &handle);
 }
 
 void OGLBuffer::Release() {
@@ -126,7 +126,6 @@ void OGLBuffer::Release() {
 
     MICROPROFILE_SCOPE(OpenGL_ResourceDeletion);
     glDeleteBuffers(1, &handle);
-    OpenGLState::GetCurState().ResetBuffer(handle).Apply();
     handle = 0;
 }
 
@@ -152,7 +151,7 @@ void OGLVertexArray::Create() {
         return;
 
     MICROPROFILE_SCOPE(OpenGL_ResourceCreation);
-    glGenVertexArrays(1, &handle);
+    glCreateVertexArrays(1, &handle);
 }
 
 void OGLVertexArray::Release() {

src/video_core/renderer_opengl/gl_state.cpp

@@ -83,8 +83,6 @@ OpenGLState::OpenGLState() {
     draw.read_framebuffer = 0;
     draw.draw_framebuffer = 0;
     draw.vertex_array = 0;
-    draw.vertex_buffer = 0;
-    draw.uniform_buffer = 0;
     draw.shader_program = 0;
     draw.program_pipeline = 0;
 
@@ -505,7 +503,6 @@ void OpenGLState::ApplySamplers() const {
 }
 
 void OpenGLState::ApplyFramebufferState() const {
-    // Framebuffer
     if (draw.read_framebuffer != cur_state.draw.read_framebuffer) {
         glBindFramebuffer(GL_READ_FRAMEBUFFER, draw.read_framebuffer);
     }
@@ -514,16 +511,10 @@ void OpenGLState::ApplyFramebufferState() const {
     }
 }
 
-void OpenGLState::ApplyVertexBufferState() const {
-    // Vertex array
+void OpenGLState::ApplyVertexArrayState() const {
     if (draw.vertex_array != cur_state.draw.vertex_array) {
         glBindVertexArray(draw.vertex_array);
     }
-
-    // Vertex buffer
-    if (draw.vertex_buffer != cur_state.draw.vertex_buffer) {
-        glBindBuffer(GL_ARRAY_BUFFER, draw.vertex_buffer);
-    }
 }
 
 void OpenGLState::ApplyDepthClamp() const {
@@ -543,11 +534,7 @@ void OpenGLState::ApplyDepthClamp() const {
 
 void OpenGLState::Apply() const {
     ApplyFramebufferState();
-    ApplyVertexBufferState();
-    // Uniform buffer
-    if (draw.uniform_buffer != cur_state.draw.uniform_buffer) {
-        glBindBuffer(GL_UNIFORM_BUFFER, draw.uniform_buffer);
-    }
+    ApplyVertexArrayState();
 
     // Shader program
     if (draw.shader_program != cur_state.draw.shader_program) {
@@ -638,16 +625,6 @@ OpenGLState& OpenGLState::ResetPipeline(GLuint handle) {
     return *this;
 }
 
-OpenGLState& OpenGLState::ResetBuffer(GLuint handle) {
-    if (draw.vertex_buffer == handle) {
-        draw.vertex_buffer = 0;
-    }
-    if (draw.uniform_buffer == handle) {
-        draw.uniform_buffer = 0;
-    }
-    return *this;
-}
-
 OpenGLState& OpenGLState::ResetVertexArray(GLuint handle) {
     if (draw.vertex_array == handle) {
         draw.vertex_array = 0;

src/video_core/renderer_opengl/gl_state.h

@@ -154,8 +154,6 @@ public:
         GLuint read_framebuffer; // GL_READ_FRAMEBUFFER_BINDING
         GLuint draw_framebuffer; // GL_DRAW_FRAMEBUFFER_BINDING
         GLuint vertex_array;     // GL_VERTEX_ARRAY_BINDING
-        GLuint vertex_buffer;    // GL_ARRAY_BUFFER_BINDING
-        GLuint uniform_buffer;   // GL_UNIFORM_BUFFER_BINDING
         GLuint shader_program;   // GL_CURRENT_PROGRAM
         GLuint program_pipeline; // GL_PROGRAM_PIPELINE_BINDING
     } draw;
@@ -206,10 +204,10 @@ public:
     }
     /// Apply this state as the current OpenGL state
     void Apply() const;
-    /// Apply only the state afecting the framebuffer
+    /// Apply only the state affecting the framebuffer
     void ApplyFramebufferState() const;
-    /// Apply only the state afecting the vertex buffer
-    void ApplyVertexBufferState() const;
+    /// Apply only the state affecting the vertex array
+    void ApplyVertexArrayState() const;
     /// Set the initial OpenGL state
     static void ApplyDefaultState();
     /// Resets any references to the given resource
@@ -217,7 +215,6 @@ public:
     OpenGLState& ResetSampler(GLuint handle);
     OpenGLState& ResetProgram(GLuint handle);
     OpenGLState& ResetPipeline(GLuint handle);
-    OpenGLState& ResetBuffer(GLuint handle);
     OpenGLState& ResetVertexArray(GLuint handle);
     OpenGLState& ResetFramebuffer(GLuint handle);
     void EmulateViewportWithScissor();

src/video_core/renderer_opengl/gl_stream_buffer.cpp

@@ -15,13 +15,12 @@ MICROPROFILE_DEFINE(OpenGL_StreamBuffer, "OpenGL", "Stream Buffer Orphaning",
 
 namespace OpenGL {
 
-OGLStreamBuffer::OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coherent)
-    : gl_target(target), buffer_size(size) {
+OGLStreamBuffer::OGLStreamBuffer(GLsizeiptr size, bool vertex_data_usage, bool prefer_coherent)
+    : buffer_size(size) {
     gl_buffer.Create();
-    glBindBuffer(gl_target, gl_buffer.handle);
 
     GLsizeiptr allocate_size = size;
-    if (target == GL_ARRAY_BUFFER) {
+    if (vertex_data_usage) {
         // On AMD GPU there is a strange crash in indexed drawing. The crash happens when the buffer
         // read position is near the end and is an out-of-bound access to the vertex buffer. This is
         // probably a bug in the driver and is related to the usage of vec3<byte> attributes in the
@@ -35,18 +34,17 @@ OGLStreamBuffer::OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coh
         coherent = prefer_coherent;
         const GLbitfield flags =
             GL_MAP_WRITE_BIT | GL_MAP_PERSISTENT_BIT | (coherent ? GL_MAP_COHERENT_BIT : 0);
-        glBufferStorage(gl_target, allocate_size, nullptr, flags);
-        mapped_ptr = static_cast<u8*>(glMapBufferRange(
-            gl_target, 0, buffer_size, flags | (coherent ? 0 : GL_MAP_FLUSH_EXPLICIT_BIT)));
+        glNamedBufferStorage(gl_buffer.handle, allocate_size, nullptr, flags);
+        mapped_ptr = static_cast<u8*>(glMapNamedBufferRange(
+            gl_buffer.handle, 0, buffer_size, flags | (coherent ? 0 : GL_MAP_FLUSH_EXPLICIT_BIT)));
     } else {
-        glBufferData(gl_target, allocate_size, nullptr, GL_STREAM_DRAW);
+        glNamedBufferData(gl_buffer.handle, allocate_size, nullptr, GL_STREAM_DRAW);
     }
 }
 
 OGLStreamBuffer::~OGLStreamBuffer() {
     if (persistent) {
-        glBindBuffer(gl_target, gl_buffer.handle);
-        glUnmapBuffer(gl_target);
+        glUnmapNamedBuffer(gl_buffer.handle);
     }
     gl_buffer.Release();
 }
@@ -74,7 +72,7 @@ std::tuple<u8*, GLintptr, bool> OGLStreamBuffer::Map(GLsizeiptr size, GLintptr a
         invalidate = true;
 
         if (persistent) {
-            glUnmapBuffer(gl_target);
+            glUnmapNamedBuffer(gl_buffer.handle);
         }
     }
 
@@ -84,7 +82,7 @@ std::tuple<u8*, GLintptr, bool> OGLStreamBuffer::Map(GLsizeiptr size, GLintptr a
                            (coherent ? GL_MAP_COHERENT_BIT : GL_MAP_FLUSH_EXPLICIT_BIT) |
                            (invalidate ? GL_MAP_INVALIDATE_BUFFER_BIT : GL_MAP_UNSYNCHRONIZED_BIT);
         mapped_ptr = static_cast<u8*>(
-            glMapBufferRange(gl_target, buffer_pos, buffer_size - buffer_pos, flags));
+            glMapNamedBufferRange(gl_buffer.handle, buffer_pos, buffer_size - buffer_pos, flags));
         mapped_offset = buffer_pos;
     }
 
@@ -95,11 +93,11 @@ void OGLStreamBuffer::Unmap(GLsizeiptr size) {
     ASSERT(size <= mapped_size);
 
     if (!coherent && size > 0) {
-        glFlushMappedBufferRange(gl_target, buffer_pos - mapped_offset, size);
+        glFlushMappedNamedBufferRange(gl_buffer.handle, buffer_pos - mapped_offset, size);
     }
 
     if (!persistent) {
-        glUnmapBuffer(gl_target);
+        glUnmapNamedBuffer(gl_buffer.handle);
     }
 
     buffer_pos += size;

src/video_core/renderer_opengl/gl_stream_buffer.h

@@ -13,7 +13,7 @@ namespace OpenGL {
 
 class OGLStreamBuffer : private NonCopyable {
 public:
-    explicit OGLStreamBuffer(GLenum target, GLsizeiptr size, bool prefer_coherent = false);
+    explicit OGLStreamBuffer(GLsizeiptr size, bool vertex_data_usage, bool prefer_coherent = false);
     ~OGLStreamBuffer();
 
     GLuint GetHandle() const;
@@ -33,7 +33,6 @@ public:
 
 private:
     OGLBuffer gl_buffer;
-    GLenum gl_target;
 
     bool coherent = false;
     bool persistent = false;

src/video_core/renderer_opengl/renderer_opengl.cpp

@@ -245,20 +245,20 @@ void RendererOpenGL::InitOpenGLObjects() {
 
     // Generate VAO
     vertex_array.Create();
-
     state.draw.vertex_array = vertex_array.handle;
-    state.draw.vertex_buffer = vertex_buffer.handle;
-    state.draw.uniform_buffer = 0;
-    state.Apply();
 
     // Attach vertex data to VAO
-    glBufferData(GL_ARRAY_BUFFER, sizeof(ScreenRectVertex) * 4, nullptr, GL_STREAM_DRAW);
-    glVertexAttribPointer(attrib_position, 2, GL_FLOAT, GL_FALSE, sizeof(ScreenRectVertex),
-                          (GLvoid*)offsetof(ScreenRectVertex, position));
-    glVertexAttribPointer(attrib_tex_coord, 2, GL_FLOAT, GL_FALSE, sizeof(ScreenRectVertex),
-                          (GLvoid*)offsetof(ScreenRectVertex, tex_coord));
-    glEnableVertexAttribArray(attrib_position);
-    glEnableVertexAttribArray(attrib_tex_coord);
+    glNamedBufferData(vertex_buffer.handle, sizeof(ScreenRectVertex) * 4, nullptr, GL_STREAM_DRAW);
+    glVertexArrayAttribFormat(vertex_array.handle, attrib_position, 2, GL_FLOAT, GL_FALSE,
+                              offsetof(ScreenRectVertex, position));
+    glVertexArrayAttribFormat(vertex_array.handle, attrib_tex_coord, 2, GL_FLOAT, GL_FALSE,
+                              offsetof(ScreenRectVertex, tex_coord));
+    glVertexArrayAttribBinding(vertex_array.handle, attrib_position, 0);
+    glVertexArrayAttribBinding(vertex_array.handle, attrib_tex_coord, 0);
+    glEnableVertexArrayAttrib(vertex_array.handle, attrib_position);
+    glEnableVertexArrayAttrib(vertex_array.handle, attrib_tex_coord);
+    glVertexArrayVertexBuffer(vertex_array.handle, 0, vertex_buffer.handle, 0,
+                              sizeof(ScreenRectVertex));
 
     // Allocate textures for the screen
     screen_info.texture.resource.Create();
@@ -370,14 +370,12 @@ void RendererOpenGL::DrawScreenTriangles(const ScreenInfo& screen_info, float x,
     state.texture_units[0].texture = screen_info.display_texture;
     state.texture_units[0].swizzle = {GL_RED, GL_GREEN, GL_BLUE, GL_ALPHA};
     // Workaround brigthness problems in SMO by enabling sRGB in the final output
-    // if it has been used in the frame
-    // Needed because of this bug in QT
-    // QTBUG-50987
+    // if it has been used in the frame. Needed because of this bug in QT: QTBUG-50987
     state.framebuffer_srgb.enabled = OpenGLState::GetsRGBUsed();
     state.Apply();
-    glBufferSubData(GL_ARRAY_BUFFER, 0, sizeof(vertices), vertices.data());
+    glNamedBufferSubData(vertex_buffer.handle, 0, sizeof(vertices), vertices.data());
     glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-    // restore default state
+    // Restore default state
     state.framebuffer_srgb.enabled = false;
     state.texture_units[0].texture = 0;
     state.Apply();

src/yuzu/CMakeLists.txt

@@ -68,6 +68,8 @@ add_executable(yuzu
     game_list_p.h
     game_list_worker.cpp
     game_list_worker.h
+    loading_screen.cpp
+    loading_screen.h
     hotkeys.cpp
     hotkeys.h
     main.cpp
@@ -102,9 +104,10 @@ set(UIS
     configuration/configure_system.ui
     configuration/configure_touchscreen_advanced.ui
     configuration/configure_web.ui
-    hotkeys.ui
-    main.ui
     compatdb.ui
+    hotkeys.ui
+    loading_screen.ui
+    main.ui
 )
 
 file(GLOB COMPAT_LIST

src/yuzu/applets/web_browser.cpp

@@ -86,9 +86,9 @@ QtWebBrowser::QtWebBrowser(GMainWindow& main_window) {
 QtWebBrowser::~QtWebBrowser() = default;
 
 void QtWebBrowser::OpenPage(std::string_view url, std::function<void()> unpack_romfs_callback,
-                            std::function<void()> finished_callback) const {
-    this->unpack_romfs_callback = unpack_romfs_callback;
-    this->finished_callback = finished_callback;
+                            std::function<void()> finished_callback) {
+    this->unpack_romfs_callback = std::move(unpack_romfs_callback);
+    this->finished_callback = std::move(finished_callback);
 
     const auto index = url.find('?');
     if (index == std::string::npos) {

src/yuzu/applets/web_browser.h

@@ -38,16 +38,15 @@ public:
     ~QtWebBrowser() override;
 
     void OpenPage(std::string_view url, std::function<void()> unpack_romfs_callback,
-                  std::function<void()> finished_callback) const override;
+                  std::function<void()> finished_callback) override;
 
 signals:
     void MainWindowOpenPage(std::string_view filename, std::string_view additional_args) const;
 
-public slots:
+private:
     void MainWindowUnpackRomFS();
     void MainWindowFinishedBrowsing();
 
-private:
-    mutable std::function<void()> unpack_romfs_callback;
-    mutable std::function<void()> finished_callback;
+    std::function<void()> unpack_romfs_callback;
+    std::function<void()> finished_callback;
 };

src/yuzu/bootmanager.cpp

@@ -1,11 +1,16 @@
+// Copyright 2014 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
 #include <QApplication>
 #include <QHBoxLayout>
 #include <QKeyEvent>
+#include <QOffscreenSurface>
+#include <QOpenGLWindow>
+#include <QPainter>
 #include <QScreen>
 #include <QWindow>
-
 #include <fmt/format.h>
-
 #include "common/microprofile.h"
 #include "common/scm_rev.h"
 #include "core/core.h"
@@ -17,6 +22,7 @@
 #include "video_core/renderer_base.h"
 #include "video_core/video_core.h"
 #include "yuzu/bootmanager.h"
+#include "yuzu/main.h"
 
 EmuThread::EmuThread(GRenderWindow* render_window) : render_window(render_window) {}
 
@@ -74,13 +80,36 @@ void EmuThread::run() {
     render_window->moveContext();
 }
 
+class GGLContext : public Core::Frontend::GraphicsContext {
+public:
+    explicit GGLContext(QOpenGLContext* shared_context) : surface() {
+        context = std::make_unique<QOpenGLContext>(shared_context);
+        surface.setFormat(shared_context->format());
+        surface.create();
+    }
+
+    void MakeCurrent() override {
+        context->makeCurrent(&surface);
+    }
+
+    void DoneCurrent() override {
+        context->doneCurrent();
+    }
+
+    void SwapBuffers() override {}
+
+private:
+    std::unique_ptr<QOpenGLContext> context;
+    QOffscreenSurface surface;
+};
+
 // This class overrides paintEvent and resizeEvent to prevent the GUI thread from stealing GL
 // context.
 // The corresponding functionality is handled in EmuThread instead
-class GGLWidgetInternal : public QGLWidget {
+class GGLWidgetInternal : public QOpenGLWindow {
 public:
-    GGLWidgetInternal(QGLFormat fmt, GRenderWindow* parent)
-        : QGLWidget(fmt, parent), parent(parent) {}
+    GGLWidgetInternal(GRenderWindow* parent, QOpenGLContext* shared_context)
+        : QOpenGLWindow(shared_context), parent(parent) {}
 
     void paintEvent(QPaintEvent* ev) override {
         if (do_painting) {
@@ -93,9 +122,51 @@ public:
         parent->OnFramebufferSizeChanged();
     }
 
+    void keyPressEvent(QKeyEvent* event) override {
+        InputCommon::GetKeyboard()->PressKey(event->key());
+    }
+
+    void keyReleaseEvent(QKeyEvent* event) override {
+        InputCommon::GetKeyboard()->ReleaseKey(event->key());
+    }
+
+    void mousePressEvent(QMouseEvent* event) override {
+        if (event->source() == Qt::MouseEventSynthesizedBySystem)
+            return; // touch input is handled in TouchBeginEvent
+
+        const auto pos{event->pos()};
+        if (event->button() == Qt::LeftButton) {
+            const auto [x, y] = parent->ScaleTouch(pos);
+            parent->TouchPressed(x, y);
+        } else if (event->button() == Qt::RightButton) {
+            InputCommon::GetMotionEmu()->BeginTilt(pos.x(), pos.y());
+        }
+    }
+
+    void mouseMoveEvent(QMouseEvent* event) override {
+        if (event->source() == Qt::MouseEventSynthesizedBySystem)
+            return; // touch input is handled in TouchUpdateEvent
+
+        const auto pos{event->pos()};
+        const auto [x, y] = parent->ScaleTouch(pos);
+        parent->TouchMoved(x, y);
+        InputCommon::GetMotionEmu()->Tilt(pos.x(), pos.y());
+    }
+
+    void mouseReleaseEvent(QMouseEvent* event) override {
+        if (event->source() == Qt::MouseEventSynthesizedBySystem)
+            return; // touch input is handled in TouchEndEvent
+
+        if (event->button() == Qt::LeftButton)
+            parent->TouchReleased();
+        else if (event->button() == Qt::RightButton)
+            InputCommon::GetMotionEmu()->EndTilt();
+    }
+
     void DisablePainting() {
         do_painting = false;
     }
+
     void EnablePainting() {
         do_painting = true;
     }
@@ -106,7 +177,7 @@ private:
 };
 
 GRenderWindow::GRenderWindow(QWidget* parent, EmuThread* emu_thread)
-    : QWidget(parent), child(nullptr), emu_thread(emu_thread) {
+    : QWidget(parent), child(nullptr), context(nullptr), emu_thread(emu_thread) {
 
     setWindowTitle(QStringLiteral("yuzu %1 | %2-%3")
                        .arg(Common::g_build_name, Common::g_scm_branch, Common::g_scm_desc));
@@ -114,6 +185,8 @@ GRenderWindow::GRenderWindow(QWidget* parent, EmuThread* emu_thread)
 
     InputCommon::Init();
     InputCommon::StartJoystickEventHandler();
+    connect(this, &GRenderWindow::FirstFrameDisplayed, static_cast<GMainWindow*>(parent),
+            &GMainWindow::OnLoadComplete);
 }
 
 GRenderWindow::~GRenderWindow() {
@@ -128,27 +201,31 @@ void GRenderWindow::moveContext() {
     auto thread = (QThread::currentThread() == qApp->thread() && emu_thread != nullptr)
                       ? emu_thread
                       : qApp->thread();
-    child->context()->moveToThread(thread);
+    context->moveToThread(thread);
 }
 
 void GRenderWindow::SwapBuffers() {
-    // In our multi-threaded QGLWidget use case we shouldn't need to call `makeCurrent`,
+    // In our multi-threaded QWidget use case we shouldn't need to call `makeCurrent`,
     // since we never call `doneCurrent` in this thread.
     // However:
     // - The Qt debug runtime prints a bogus warning on the console if `makeCurrent` wasn't called
     // since the last time `swapBuffers` was executed;
     // - On macOS, if `makeCurrent` isn't called explicitely, resizing the buffer breaks.
-    child->makeCurrent();
+    context->makeCurrent(child);
 
-    child->swapBuffers();
+    context->swapBuffers(child);
+    if (!first_frame) {
+        emit FirstFrameDisplayed();
+        first_frame = true;
+    }
 }
 
 void GRenderWindow::MakeCurrent() {
-    child->makeCurrent();
+    context->makeCurrent(child);
 }
 
 void GRenderWindow::DoneCurrent() {
-    child->doneCurrent();
+    context->doneCurrent();
 }
 
 void GRenderWindow::PollEvents() {}
@@ -161,14 +238,26 @@ void GRenderWindow::PollEvents() {}
 void GRenderWindow::OnFramebufferSizeChanged() {
     // Screen changes potentially incur a change in screen DPI, hence we should update the
     // framebuffer size
-    qreal pixelRatio = windowPixelRatio();
+    qreal pixelRatio = GetWindowPixelRatio();
     unsigned width = child->QPaintDevice::width() * pixelRatio;
     unsigned height = child->QPaintDevice::height() * pixelRatio;
     UpdateCurrentFramebufferLayout(width, height);
 }
 
+void GRenderWindow::ForwardKeyPressEvent(QKeyEvent* event) {
+    if (child) {
+        child->keyPressEvent(event);
+    }
+}
+
+void GRenderWindow::ForwardKeyReleaseEvent(QKeyEvent* event) {
+    if (child) {
+        child->keyReleaseEvent(event);
+    }
+}
+
 void GRenderWindow::BackupGeometry() {
-    geometry = ((QGLWidget*)this)->saveGeometry();
+    geometry = ((QWidget*)this)->saveGeometry();
 }
 
 void GRenderWindow::RestoreGeometry() {
@@ -186,18 +275,18 @@ QByteArray GRenderWindow::saveGeometry() {
     // If we are a top-level widget, store the current geometry
     // otherwise, store the last backup
     if (parent() == nullptr)
-        return ((QGLWidget*)this)->saveGeometry();
+        return ((QWidget*)this)->saveGeometry();
     else
         return geometry;
 }
 
-qreal GRenderWindow::windowPixelRatio() const {
+qreal GRenderWindow::GetWindowPixelRatio() const {
     // windowHandle() might not be accessible until the window is displayed to screen.
     return windowHandle() ? windowHandle()->screen()->devicePixelRatio() : 1.0f;
 }
 
 std::pair<unsigned, unsigned> GRenderWindow::ScaleTouch(const QPointF pos) const {
-    const qreal pixel_ratio = windowPixelRatio();
+    const qreal pixel_ratio = GetWindowPixelRatio();
     return {static_cast<unsigned>(std::max(std::round(pos.x() * pixel_ratio), qreal{0.0})),
             static_cast<unsigned>(std::max(std::round(pos.y() * pixel_ratio), qreal{0.0}))};
 }
@@ -207,47 +296,6 @@ void GRenderWindow::closeEvent(QCloseEvent* event) {
     QWidget::closeEvent(event);
 }
 
-void GRenderWindow::keyPressEvent(QKeyEvent* event) {
-    InputCommon::GetKeyboard()->PressKey(event->key());
-}
-
-void GRenderWindow::keyReleaseEvent(QKeyEvent* event) {
-    InputCommon::GetKeyboard()->ReleaseKey(event->key());
-}
-
-void GRenderWindow::mousePressEvent(QMouseEvent* event) {
-    if (event->source() == Qt::MouseEventSynthesizedBySystem)
-        return; // touch input is handled in TouchBeginEvent
-
-    auto pos = event->pos();
-    if (event->button() == Qt::LeftButton) {
-        const auto [x, y] = ScaleTouch(pos);
-        this->TouchPressed(x, y);
-    } else if (event->button() == Qt::RightButton) {
-        InputCommon::GetMotionEmu()->BeginTilt(pos.x(), pos.y());
-    }
-}
-
-void GRenderWindow::mouseMoveEvent(QMouseEvent* event) {
-    if (event->source() == Qt::MouseEventSynthesizedBySystem)
-        return; // touch input is handled in TouchUpdateEvent
-
-    auto pos = event->pos();
-    const auto [x, y] = ScaleTouch(pos);
-    this->TouchMoved(x, y);
-    InputCommon::GetMotionEmu()->Tilt(pos.x(), pos.y());
-}
-
-void GRenderWindow::mouseReleaseEvent(QMouseEvent* event) {
-    if (event->source() == Qt::MouseEventSynthesizedBySystem)
-        return; // touch input is handled in TouchEndEvent
-
-    if (event->button() == Qt::LeftButton)
-        this->TouchReleased();
-    else if (event->button() == Qt::RightButton)
-        InputCommon::GetMotionEmu()->EndTilt();
-}
-
 void GRenderWindow::TouchBeginEvent(const QTouchEvent* event) {
     // TouchBegin always has exactly one touch point, so take the .first()
     const auto [x, y] = ScaleTouch(event->touchPoints().first().pos());
@@ -300,33 +348,60 @@ void GRenderWindow::OnClientAreaResized(unsigned width, unsigned height) {
     NotifyClientAreaSizeChanged(std::make_pair(width, height));
 }
 
-void GRenderWindow::InitRenderTarget() {
-    if (child) {
-        delete child;
-    }
+std::unique_ptr<Core::Frontend::GraphicsContext> GRenderWindow::CreateSharedContext() const {
+    return std::make_unique<GGLContext>(shared_context.get());
+}
 
-    if (layout()) {
-        delete layout();
-    }
+void GRenderWindow::InitRenderTarget() {
+    shared_context.reset();
+    context.reset();
+
+    delete child;
+    child = nullptr;
+
+    delete container;
+    container = nullptr;
+
+    delete layout();
+
+    first_frame = false;
 
     // TODO: One of these flags might be interesting: WA_OpaquePaintEvent, WA_NoBackground,
     // WA_DontShowOnScreen, WA_DeleteOnClose
-    QGLFormat fmt;
+    QSurfaceFormat fmt;
     fmt.setVersion(4, 3);
-    fmt.setProfile(QGLFormat::CoreProfile);
+    fmt.setProfile(QSurfaceFormat::CoreProfile);
+    // TODO: expose a setting for buffer value (ie default/single/double/triple)
+    fmt.setSwapBehavior(QSurfaceFormat::DefaultSwapBehavior);
+    shared_context = std::make_unique<QOpenGLContext>();
+    shared_context->setFormat(fmt);
+    shared_context->create();
+    context = std::make_unique<QOpenGLContext>();
+    context->setShareContext(shared_context.get());
+    context->setFormat(fmt);
+    context->create();
     fmt.setSwapInterval(false);
 
-    // Requests a forward-compatible context, which is required to get a 3.2+ context on OS X
-    fmt.setOption(QGL::NoDeprecatedFunctions);
+    child = new GGLWidgetInternal(this, shared_context.get());
+    container = QWidget::createWindowContainer(child, this);
 
-    child = new GGLWidgetInternal(fmt, this);
     QBoxLayout* layout = new QHBoxLayout(this);
-
-    resize(Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height);
-    layout->addWidget(child);
+    layout->addWidget(container);
     layout->setMargin(0);
     setLayout(layout);
 
+    // Reset minimum size to avoid unwanted resizes when this function is called for a second time.
+    setMinimumSize(1, 1);
+
+    // Show causes the window to actually be created and the OpenGL context as well, but we don't
+    // want the widget to be shown yet, so immediately hide it.
+    show();
+    hide();
+
+    resize(Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height);
+    child->resize(Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height);
+    container->resize(Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height);
+
     OnMinimalClientAreaChangeRequest(GetActiveConfig().min_client_area_size);
 
     OnFramebufferSizeChanged();

src/yuzu/bootmanager.h

@@ -7,9 +7,9 @@
 #include <atomic>
 #include <condition_variable>
 #include <mutex>
-#include <QGLWidget>
 #include <QImage>
 #include <QThread>
+#include <QWidget>
 #include "common/thread.h"
 #include "core/core.h"
 #include "core/frontend/emu_window.h"
@@ -21,6 +21,8 @@ class QTouchEvent;
 class GGLWidgetInternal;
 class GMainWindow;
 class GRenderWindow;
+class QSurface;
+class QOpenGLContext;
 
 class EmuThread : public QThread {
     Q_OBJECT
@@ -115,25 +117,21 @@ public:
     void MakeCurrent() override;
     void DoneCurrent() override;
     void PollEvents() override;
+    std::unique_ptr<Core::Frontend::GraphicsContext> CreateSharedContext() const override;
+
+    void ForwardKeyPressEvent(QKeyEvent* event);
+    void ForwardKeyReleaseEvent(QKeyEvent* event);
 
     void BackupGeometry();
     void RestoreGeometry();
     void restoreGeometry(const QByteArray& geometry); // overridden
     QByteArray saveGeometry();                        // overridden
 
-    qreal windowPixelRatio() const;
+    qreal GetWindowPixelRatio() const;
+    std::pair<unsigned, unsigned> ScaleTouch(const QPointF pos) const;
 
     void closeEvent(QCloseEvent* event) override;
-
-    void keyPressEvent(QKeyEvent* event) override;
-    void keyReleaseEvent(QKeyEvent* event) override;
-
-    void mousePressEvent(QMouseEvent* event) override;
-    void mouseMoveEvent(QMouseEvent* event) override;
-    void mouseReleaseEvent(QMouseEvent* event) override;
-
     bool event(QEvent* event) override;
-
     void focusOutEvent(QFocusEvent* event) override;
 
     void OnClientAreaResized(unsigned width, unsigned height);
@@ -152,9 +150,9 @@ public slots:
 signals:
     /// Emitted when the window is closed
     void Closed();
+    void FirstFrameDisplayed();
 
 private:
-    std::pair<unsigned, unsigned> ScaleTouch(const QPointF pos) const;
     void TouchBeginEvent(const QTouchEvent* event);
     void TouchUpdateEvent(const QTouchEvent* event);
     void TouchEndEvent();
@@ -162,15 +160,23 @@ private:
     void OnMinimalClientAreaChangeRequest(
         const std::pair<unsigned, unsigned>& minimal_size) override;
 
-    GGLWidgetInternal* child;
+    QWidget* container = nullptr;
+    GGLWidgetInternal* child = nullptr;
 
     QByteArray geometry;
 
     EmuThread* emu_thread;
+    // Context that backs the GGLWidgetInternal (and will be used by core to render)
+    std::unique_ptr<QOpenGLContext> context;
+    // Context that will be shared between all newly created contexts. This should never be made
+    // current
+    std::unique_ptr<QOpenGLContext> shared_context;
 
     /// Temporary storage of the screenshot taken
     QImage screenshot_image;
 
+    bool first_frame = false;
+
 protected:
     void showEvent(QShowEvent* event) override;
 };

src/yuzu/configuration/configure_debug.cpp

@@ -7,6 +7,7 @@
 #include "common/file_util.h"
 #include "common/logging/backend.h"
 #include "common/logging/filter.h"
+#include "common/logging/log.h"
 #include "core/core.h"
 #include "core/settings.h"
 #include "ui_configure_debug.h"

src/yuzu/configuration/configure_input_player.cpp

@@ -7,7 +7,6 @@
 #include <utility>
 #include <QColorDialog>
 #include <QGridLayout>
-#include <QKeyEvent>
 #include <QMenu>
 #include <QMessageBox>
 #include <QTimer>

src/yuzu/configuration/configure_input_player.h

@@ -11,21 +11,17 @@
 #include <string>
 
 #include <QDialog>
+#include <QKeyEvent>
 
 #include "common/param_package.h"
 #include "core/settings.h"
+#include "input_common/main.h"
 #include "ui_configure_input.h"
 
-class QKeyEvent;
 class QPushButton;
 class QString;
 class QTimer;
 
-namespace InputCommon::Polling {
-class DevicePoller;
-enum class DeviceType;
-} // namespace InputCommon::Polling
-
 namespace Ui {
 class ConfigureInputPlayer;
 }

src/yuzu/configuration/configure_per_general.cpp

@@ -8,6 +8,7 @@
 
 #include <QHeaderView>
 #include <QMenu>
+#include <QMessageBox>
 #include <QStandardItemModel>
 #include <QString>
 #include <QTimer>

src/yuzu/configuration/configure_per_general.h

@@ -7,16 +7,16 @@
 #include <memory>
 #include <vector>
 
-#include <QDialog>
+#include <QKeyEvent>
 #include <QList>
+#include <QWidget>
 
 #include "core/file_sys/vfs_types.h"
 
+class QTreeView;
 class QGraphicsScene;
 class QStandardItem;
 class QStandardItemModel;
-class QTreeView;
-class QVBoxLayout;
 
 namespace Ui {
 class ConfigurePerGameGeneral;

src/yuzu/configuration/configure_system.cpp

@@ -2,19 +2,23 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
-#include <array>
-#include <chrono>
-#include <optional>
-
+#include <algorithm>
 #include <QFileDialog>
 #include <QGraphicsItem>
+#include <QGraphicsScene>
+#include <QHeaderView>
 #include <QMessageBox>
+#include <QStandardItemModel>
+#include <QTreeView>
+#include <QVBoxLayout>
 #include "common/assert.h"
 #include "common/file_util.h"
+#include "common/string_util.h"
 #include "core/core.h"
 #include "core/settings.h"
 #include "ui_configure_system.h"
 #include "yuzu/configuration/configure_system.h"
+#include "yuzu/util/limitable_input_dialog.h"
 
 namespace {
 constexpr std::array<int, 12> days_in_month = {{

src/yuzu/configuration/configure_touchscreen_advanced.h

@@ -6,6 +6,8 @@
 
 #include <memory>
 #include <QDialog>
+#include <QWidget>
+#include "yuzu/configuration/config.h"
 
 namespace Ui {
 class ConfigureTouchscreenAdvanced;

src/yuzu/configuration/configure_web.cpp

@@ -89,12 +89,11 @@ void ConfigureWeb::OnLoginChanged() {
 
 void ConfigureWeb::VerifyLogin() {
     ui->button_verify_login->setDisabled(true);
-    ui->button_verify_login->setText(tr("Verifying"));
-    verify_watcher.setFuture(
-        QtConcurrent::run([this, username = ui->edit_username->text().toStdString(),
-                           token = ui->edit_token->text().toStdString()]() {
-            return Core::VerifyLogin(username, token);
-        }));
+    ui->button_verify_login->setText(tr("Verifying..."));
+    verify_watcher.setFuture(QtConcurrent::run([username = ui->edit_username->text().toStdString(),
+                                                token = ui->edit_token->text().toStdString()] {
+        return Core::VerifyLogin(username, token);
+    }));
 }
 
 void ConfigureWeb::OnLoginVerified() {

src/yuzu/loading_screen.cpp

@@ -0,0 +1,213 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include <unordered_map>
+#include <QBuffer>
+#include <QByteArray>
+#include <QGraphicsOpacityEffect>
+#include <QHBoxLayout>
+#include <QIODevice>
+#include <QImage>
+#include <QLabel>
+#include <QPainter>
+#include <QPalette>
+#include <QPixmap>
+#include <QProgressBar>
+#include <QPropertyAnimation>
+#include <QStyleOption>
+#include <QTime>
+#include <QtConcurrent/QtConcurrentRun>
+#include "common/logging/log.h"
+#include "core/loader/loader.h"
+#include "ui_loading_screen.h"
+#include "video_core/rasterizer_interface.h"
+#include "yuzu/loading_screen.h"
+
+// Mingw seems to not have QMovie at all. If QMovie is missing then use a single frame instead of an
+// showing the full animation
+#if !YUZU_QT_MOVIE_MISSING
+#include <QMovie>
+#endif
+
+constexpr const char PROGRESSBAR_STYLE_PREPARE[] = R"(
+QProgressBar {}
+QProgressBar::chunk {})";
+
+constexpr const char PROGRESSBAR_STYLE_DECOMPILE[] = R"(
+QProgressBar {
+  background-color: black;
+  border: 2px solid white;
+  border-radius: 4px;
+  padding: 2px;
+}
+QProgressBar::chunk {
+  background-color: #0ab9e6;
+})";
+
+constexpr const char PROGRESSBAR_STYLE_BUILD[] = R"(
+QProgressBar {
+  background-color: black;
+  border: 2px solid white;
+  border-radius: 4px;
+  padding: 2px;
+}
+QProgressBar::chunk {
+ background-color: #ff3c28;
+})";
+
+constexpr const char PROGRESSBAR_STYLE_COMPLETE[] = R"(
+QProgressBar {
+  background-color: #0ab9e6;
+  border: 2px solid white;
+  border-radius: 4px;
+  padding: 2px;
+}
+QProgressBar::chunk {
+  background-color: #ff3c28;
+})";
+
+LoadingScreen::LoadingScreen(QWidget* parent)
+    : QWidget(parent), ui(std::make_unique<Ui::LoadingScreen>()),
+      previous_stage(VideoCore::LoadCallbackStage::Complete) {
+    ui->setupUi(this);
+    setMinimumSize(1280, 720);
+
+    // Create a fade out effect to hide this loading screen widget.
+    // When fading opacity, it will fade to the parent widgets background color, which is why we
+    // create an internal widget named fade_widget that we use the effect on, while keeping the
+    // loading screen widget's background color black. This way we can create a fade to black effect
+    opacity_effect = new QGraphicsOpacityEffect(this);
+    opacity_effect->setOpacity(1);
+    ui->fade_parent->setGraphicsEffect(opacity_effect);
+    fadeout_animation = std::make_unique<QPropertyAnimation>(opacity_effect, "opacity");
+    fadeout_animation->setDuration(500);
+    fadeout_animation->setStartValue(1);
+    fadeout_animation->setEndValue(0);
+    fadeout_animation->setEasingCurve(QEasingCurve::OutBack);
+
+    // After the fade completes, hide the widget and reset the opacity
+    connect(fadeout_animation.get(), &QPropertyAnimation::finished, [this] {
+        hide();
+        opacity_effect->setOpacity(1);
+        emit Hidden();
+    });
+    connect(this, &LoadingScreen::LoadProgress, this, &LoadingScreen::OnLoadProgress,
+            Qt::QueuedConnection);
+    qRegisterMetaType<VideoCore::LoadCallbackStage>();
+
+    stage_translations = {
+        {VideoCore::LoadCallbackStage::Prepare, tr("Loading...")},
+        {VideoCore::LoadCallbackStage::Decompile, tr("Preparing Shaders %1 / %2")},
+        {VideoCore::LoadCallbackStage::Build, tr("Loading Shaders %1 / %2")},
+        {VideoCore::LoadCallbackStage::Complete, tr("Launching...")},
+    };
+    progressbar_style = {
+        {VideoCore::LoadCallbackStage::Prepare, PROGRESSBAR_STYLE_PREPARE},
+        {VideoCore::LoadCallbackStage::Decompile, PROGRESSBAR_STYLE_DECOMPILE},
+        {VideoCore::LoadCallbackStage::Build, PROGRESSBAR_STYLE_BUILD},
+        {VideoCore::LoadCallbackStage::Complete, PROGRESSBAR_STYLE_COMPLETE},
+    };
+}
+
+LoadingScreen::~LoadingScreen() = default;
+
+void LoadingScreen::Prepare(Loader::AppLoader& loader) {
+    std::vector<u8> buffer;
+    if (loader.ReadBanner(buffer) == Loader::ResultStatus::Success) {
+#ifdef YUZU_QT_MOVIE_MISSING
+        QPixmap map;
+        map.loadFromData(buffer.data(), buffer.size());
+        ui->banner->setPixmap(map);
+#else
+        backing_mem = std::make_unique<QByteArray>(reinterpret_cast<char*>(buffer.data()),
+                                                   static_cast<int>(buffer.size()));
+        backing_buf = std::make_unique<QBuffer>(backing_mem.get());
+        backing_buf->open(QIODevice::ReadOnly);
+        animation = std::make_unique<QMovie>(backing_buf.get(), QByteArray());
+        animation->start();
+        ui->banner->setMovie(animation.get());
+#endif
+        buffer.clear();
+    }
+    if (loader.ReadLogo(buffer) == Loader::ResultStatus::Success) {
+        QPixmap map;
+        map.loadFromData(buffer.data(), static_cast<uint>(buffer.size()));
+        ui->logo->setPixmap(map);
+    }
+
+    slow_shader_compile_start = false;
+    OnLoadProgress(VideoCore::LoadCallbackStage::Prepare, 0, 0);
+}
+
+void LoadingScreen::OnLoadComplete() {
+    fadeout_animation->start(QPropertyAnimation::KeepWhenStopped);
+}
+
+void LoadingScreen::OnLoadProgress(VideoCore::LoadCallbackStage stage, std::size_t value,
+                                   std::size_t total) {
+    using namespace std::chrono;
+    auto now = high_resolution_clock::now();
+    // reset the timer if the stage changes
+    if (stage != previous_stage) {
+        ui->progress_bar->setStyleSheet(progressbar_style[stage]);
+        // Hide the progress bar during the prepare stage
+        if (stage == VideoCore::LoadCallbackStage::Prepare) {
+            ui->progress_bar->hide();
+        } else {
+            ui->progress_bar->show();
+        }
+        previous_stage = stage;
+        // reset back to fast shader compiling since the stage changed
+        slow_shader_compile_start = false;
+    }
+    // update the max of the progress bar if the number of shaders change
+    if (total != previous_total) {
+        ui->progress_bar->setMaximum(static_cast<int>(total));
+        previous_total = total;
+    }
+
+    QString estimate;
+    // If theres a drastic slowdown in the rate, then display an estimate
+    if (now - previous_time > milliseconds{50} || slow_shader_compile_start) {
+        if (!slow_shader_compile_start) {
+            slow_shader_start = high_resolution_clock::now();
+            slow_shader_compile_start = true;
+            slow_shader_first_value = value;
+        }
+        // only calculate an estimate time after a second has passed since stage change
+        auto diff = duration_cast<milliseconds>(now - slow_shader_start);
+        if (diff > seconds{1}) {
+            auto eta_mseconds =
+                static_cast<long>(static_cast<double>(total - slow_shader_first_value) /
+                                  (value - slow_shader_first_value) * diff.count());
+            estimate =
+                tr("Estimated Time %1")
+                    .arg(QTime(0, 0, 0, 0)
+                             .addMSecs(std::max<long>(eta_mseconds - diff.count() + 1000, 1000))
+                             .toString("mm:ss"));
+        }
+    }
+
+    // update labels and progress bar
+    ui->stage->setText(stage_translations[stage].arg(value).arg(total));
+    ui->value->setText(estimate);
+    ui->progress_bar->setValue(static_cast<int>(value));
+    previous_time = now;
+}
+
+void LoadingScreen::paintEvent(QPaintEvent* event) {
+    QStyleOption opt;
+    opt.init(this);
+    QPainter p(this);
+    style()->drawPrimitive(QStyle::PE_Widget, &opt, &p, this);
+    QWidget::paintEvent(event);
+}
+
+void LoadingScreen::Clear() {
+#ifndef YUZU_QT_MOVIE_MISSING
+    animation.reset();
+    backing_buf.reset();
+    backing_mem.reset();
+#endif
+}

src/yuzu/loading_screen.h

@@ -0,0 +1,92 @@
+// Copyright 2019 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <chrono>
+#include <memory>
+#include <QString>
+#include <QWidget>
+
+#if !QT_CONFIG(movie)
+#define YUZU_QT_MOVIE_MISSING 1
+#endif
+
+namespace Loader {
+class AppLoader;
+}
+
+namespace Ui {
+class LoadingScreen;
+}
+
+namespace VideoCore {
+enum class LoadCallbackStage;
+}
+
+class QBuffer;
+class QByteArray;
+class QGraphicsOpacityEffect;
+class QMovie;
+class QPropertyAnimation;
+
+class LoadingScreen : public QWidget {
+    Q_OBJECT
+
+public:
+    explicit LoadingScreen(QWidget* parent = nullptr);
+
+    ~LoadingScreen();
+
+    /// Call before showing the loading screen to load the widgets with the logo and banner for the
+    /// currently loaded application.
+    void Prepare(Loader::AppLoader& loader);
+
+    /// After the loading screen is hidden, the owner of this class can call this to clean up any
+    /// used resources such as the logo and banner.
+    void Clear();
+
+    /// Slot used to update the status of the progress bar
+    void OnLoadProgress(VideoCore::LoadCallbackStage stage, std::size_t value, std::size_t total);
+
+    /// Hides the LoadingScreen with a fade out effect
+    void OnLoadComplete();
+
+    // In order to use a custom widget with a stylesheet, you need to override the paintEvent
+    // See https://wiki.qt.io/How_to_Change_the_Background_Color_of_QWidget
+    void paintEvent(QPaintEvent* event) override;
+
+signals:
+    void LoadProgress(VideoCore::LoadCallbackStage stage, std::size_t value, std::size_t total);
+    /// Signals that this widget is completely hidden now and should be replaced with the other
+    /// widget
+    void Hidden();
+
+private:
+#ifndef YUZU_QT_MOVIE_MISSING
+    std::unique_ptr<QMovie> animation;
+    std::unique_ptr<QBuffer> backing_buf;
+    std::unique_ptr<QByteArray> backing_mem;
+#endif
+    std::unique_ptr<Ui::LoadingScreen> ui;
+    std::size_t previous_total = 0;
+    VideoCore::LoadCallbackStage previous_stage;
+
+    QGraphicsOpacityEffect* opacity_effect = nullptr;
+    std::unique_ptr<QPropertyAnimation> fadeout_animation;
+
+    // Definitions for the differences in text and styling for each stage
+    std::unordered_map<VideoCore::LoadCallbackStage, const char*> progressbar_style;
+    std::unordered_map<VideoCore::LoadCallbackStage, QString> stage_translations;
+
+    // newly generated shaders are added to the end of the file, so when loading and compiling
+    // shaders, it will start quickly but end slow if new shaders were added since previous launch.
+    // These variables are used to detect the change in speed so we can generate an ETA
+    bool slow_shader_compile_start = false;
+    std::chrono::high_resolution_clock::time_point slow_shader_start;
+    std::chrono::high_resolution_clock::time_point previous_time;
+    std::size_t slow_shader_first_value = 0;
+};
+
+Q_DECLARE_METATYPE(VideoCore::LoadCallbackStage);

src/yuzu/loading_screen.ui

@@ -0,0 +1,161 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<ui version="4.0">
+ <class>LoadingScreen</class>
+ <widget class="QWidget" name="LoadingScreen">
+  <property name="geometry">
+   <rect>
+    <x>0</x>
+    <y>0</y>
+    <width>746</width>
+    <height>495</height>
+   </rect>
+  </property>
+  <property name="styleSheet">
+   <string notr="true">background-color: rgb(0, 0, 0);</string>
+  </property>
+  <layout class="QVBoxLayout">
+   <property name="spacing">
+    <number>0</number>
+   </property>
+   <property name="leftMargin">
+    <number>0</number>
+   </property>
+   <property name="topMargin">
+    <number>0</number>
+   </property>
+   <property name="rightMargin">
+    <number>0</number>
+   </property>
+   <property name="bottomMargin">
+    <number>0</number>
+   </property>
+   <item>
+    <widget class="QWidget" name="fade_parent" native="true">
+     <layout class="QVBoxLayout" name="verticalLayout_2">
+      <property name="spacing">
+       <number>0</number>
+      </property>
+      <property name="leftMargin">
+       <number>0</number>
+      </property>
+      <property name="topMargin">
+       <number>0</number>
+      </property>
+      <property name="rightMargin">
+       <number>0</number>
+      </property>
+      <property name="bottomMargin">
+       <number>0</number>
+      </property>
+      <item alignment="Qt::AlignLeft|Qt::AlignTop">
+       <widget class="QLabel" name="logo">
+        <property name="text">
+         <string/>
+        </property>
+        <property name="alignment">
+         <set>Qt::AlignLeading|Qt::AlignLeft|Qt::AlignTop</set>
+        </property>
+        <property name="margin">
+         <number>30</number>
+        </property>
+       </widget>
+      </item>
+      <item>
+       <layout class="QVBoxLayout" name="verticalLayout" stretch="1,0,1">
+        <property name="spacing">
+         <number>15</number>
+        </property>
+        <property name="sizeConstraint">
+         <enum>QLayout::SetNoConstraint</enum>
+        </property>
+        <item alignment="Qt::AlignHCenter|Qt::AlignBottom">
+         <widget class="QLabel" name="stage">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Minimum" vsizetype="Minimum">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="styleSheet">
+           <string notr="true">background-color: black; color: white;
+font: 75 20pt &quot;Arial&quot;;</string>
+          </property>
+          <property name="text">
+           <string>Loading Shaders 387 / 1628</string>
+          </property>
+         </widget>
+        </item>
+        <item alignment="Qt::AlignHCenter|Qt::AlignTop">
+         <widget class="QProgressBar" name="progress_bar">
+          <property name="sizePolicy">
+           <sizepolicy hsizetype="Expanding" vsizetype="Preferred">
+            <horstretch>0</horstretch>
+            <verstretch>0</verstretch>
+           </sizepolicy>
+          </property>
+          <property name="minimumSize">
+           <size>
+            <width>500</width>
+            <height>40</height>
+           </size>
+          </property>
+          <property name="styleSheet">
+           <string notr="true">QProgressBar {
+color: white;
+border: 2px solid white;
+outline-color: black;
+border-radius: 20px;
+}
+QProgressBar::chunk {
+background-color: white;
+border-radius: 15px;
+}</string>
+          </property>
+          <property name="value">
+           <number>50</number>
+          </property>
+          <property name="textVisible">
+           <bool>false</bool>
+          </property>
+          <property name="format">
+           <string>Loading Shaders %v out of %m</string>
+          </property>
+         </widget>
+        </item>
+        <item alignment="Qt::AlignHCenter|Qt::AlignTop">
+         <widget class="QLabel" name="value">
+          <property name="toolTip">
+           <string notr="true"/>
+          </property>
+          <property name="styleSheet">
+           <string notr="true">background-color: black; color: white;
+font: 75 15pt &quot;Arial&quot;;</string>
+          </property>
+          <property name="text">
+           <string>Stage 1 of 2. Estimate Time 5m 4s</string>
+          </property>
+         </widget>
+        </item>
+       </layout>
+      </item>
+      <item alignment="Qt::AlignRight|Qt::AlignBottom">
+       <widget class="QLabel" name="banner">
+        <property name="styleSheet">
+         <string notr="true">background-color: black;</string>
+        </property>
+        <property name="text">
+         <string/>
+        </property>
+        <property name="margin">
+         <number>30</number>
+        </property>
+       </widget>
+      </item>
+     </layout>
+    </widget>
+   </item>
+  </layout>
+ </widget>
+ <resources/>
+ <connections/>
+</ui>

src/yuzu/main.cpp

@@ -92,6 +92,7 @@ static FileSys::VirtualFile VfsDirectoryCreateFileWrapper(const FileSys::Virtual
 #include "yuzu/game_list.h"
 #include "yuzu/game_list_p.h"
 #include "yuzu/hotkeys.h"
+#include "yuzu/loading_screen.h"
 #include "yuzu/main.h"
 #include "yuzu/ui_settings.h"
 
@@ -411,6 +412,17 @@ void GMainWindow::InitializeWidgets() {
     game_list = new GameList(vfs, this);
     ui.horizontalLayout->addWidget(game_list);
 
+    loading_screen = new LoadingScreen(this);
+    loading_screen->hide();
+    ui.horizontalLayout->addWidget(loading_screen);
+    connect(loading_screen, &LoadingScreen::Hidden, [&] {
+        loading_screen->Clear();
+        if (emulation_running) {
+            render_window->show();
+            render_window->setFocus();
+        }
+    });
+
     // Create status bar
     message_label = new QLabel();
     // Configured separately for left alignment
@@ -897,8 +909,8 @@ void GMainWindow::BootGame(const QString& filename) {
                        .arg(Common::g_build_fullname, Common::g_scm_branch, Common::g_scm_desc,
                             QString::fromStdString(title_name)));
 
-    render_window->show();
-    render_window->setFocus();
+    loading_screen->Prepare(Core::System::GetInstance().GetAppLoader());
+    loading_screen->show();
 
     emulation_running = true;
     if (ui.action_Fullscreen->isChecked()) {
@@ -932,6 +944,8 @@ void GMainWindow::ShutdownGame() {
     ui.action_Load_Amiibo->setEnabled(false);
     ui.action_Capture_Screenshot->setEnabled(false);
     render_window->hide();
+    loading_screen->hide();
+    loading_screen->Clear();
     game_list->show();
     game_list->setFilterFocus();
     setWindowTitle(QString("yuzu %1| %2-%3")
@@ -1505,6 +1519,10 @@ void GMainWindow::OnStopGame() {
     ShutdownGame();
 }
 
+void GMainWindow::OnLoadComplete() {
+    loading_screen->OnLoadComplete();
+}
+
 void GMainWindow::OnMenuReportCompatibility() {
     if (!Settings::values.yuzu_token.empty() && !Settings::values.yuzu_username.empty()) {
         CompatDB compatdb{this};
@@ -1771,9 +1789,8 @@ void GMainWindow::OnReinitializeKeys(ReinitializeKeyBehavior behavior) {
             this, tr("Confirm Key Rederivation"),
             tr("You are about to force rederive all of your keys. \nIf you do not know what this "
                "means or what you are doing, \nthis is a potentially destructive action. \nPlease "
-               "make "
-               "sure this is what you want \nand optionally make backups.\n\nThis will delete your "
-               "autogenerated key files and re-run the key derivation module."),
+               "make sure this is what you want \nand optionally make backups.\n\nThis will delete "
+               "your autogenerated key files and re-run the key derivation module."),
             QMessageBox::StandardButtons{QMessageBox::Ok, QMessageBox::Cancel});
 
         if (res == QMessageBox::Cancel)
@@ -1818,7 +1835,7 @@ void GMainWindow::OnReinitializeKeys(ReinitializeKeyBehavior behavior) {
                     errors +
                     tr("<br><br>You can get all of these and dump all of your games easily by "
                        "following <a href='https://yuzu-emu.org/help/quickstart/'>the "
-                       "quickstart guide</a>. Alternatively, you can use another method of dumping "
+                       "quickstart guide</a>. Alternatively, you can use another method of dumping"
                        "to obtain all of your keys."));
         }
 
@@ -1948,6 +1965,18 @@ void GMainWindow::dragMoveEvent(QDragMoveEvent* event) {
     event->acceptProposedAction();
 }
 
+void GMainWindow::keyPressEvent(QKeyEvent* event) {
+    if (render_window) {
+        render_window->ForwardKeyPressEvent(event);
+    }
+}
+
+void GMainWindow::keyReleaseEvent(QKeyEvent* event) {
+    if (render_window) {
+        render_window->ForwardKeyReleaseEvent(event);
+    }
+}
+
 bool GMainWindow::ConfirmChangeGame() {
     if (emu_thread == nullptr)
         return true;
@@ -2015,7 +2044,8 @@ int main(int argc, char* argv[]) {
     QCoreApplication::setOrganizationName("yuzu team");
     QCoreApplication::setApplicationName("yuzu");
 
-    QApplication::setAttribute(Qt::AA_DontCheckOpenGLContextThreadAffinity);
+    // Enables the core to make the qt created contexts current on std::threads
+    QCoreApplication::setAttribute(Qt::AA_DontCheckOpenGLContextThreadAffinity);
     QApplication app(argc, argv);
 
     // Qt changes the locale and causes issues in float conversion using std::to_string() when

src/yuzu/main.h

@@ -25,6 +25,7 @@ class GImageInfo;
 class GraphicsBreakPointsWidget;
 class GraphicsSurfaceWidget;
 class GRenderWindow;
+class LoadingScreen;
 class MicroProfileDialog;
 class ProfilerWidget;
 class QLabel;
@@ -109,10 +110,10 @@ signals:
     void WebBrowserFinishedBrowsing();
 
 public slots:
+    void OnLoadComplete();
     void ProfileSelectorSelectProfile();
     void SoftwareKeyboardGetText(const Core::Frontend::SoftwareKeyboardParameters& parameters);
     void SoftwareKeyboardInvokeCheckDialog(std::u16string error_message);
-
     void WebBrowserOpenPage(std::string_view filename, std::string_view arguments);
 
 private:
@@ -212,6 +213,7 @@ private:
 
     GRenderWindow* render_window;
     GameList* game_list;
+    LoadingScreen* loading_screen;
 
     // Status bar elements
     QLabel* message_label = nullptr;
@@ -249,4 +251,8 @@ protected:
     void dropEvent(QDropEvent* event) override;
     void dragEnterEvent(QDragEnterEvent* event) override;
     void dragMoveEvent(QDragMoveEvent* event) override;
+
+    // Overrides used to forward signals to the render window when the focus moves out.
+    void keyPressEvent(QKeyEvent* event) override;
+    void keyReleaseEvent(QKeyEvent* event) override;
 };

src/yuzu_cmd/emu_window/emu_window_sdl2.cpp

@@ -19,6 +19,37 @@
 #include "input_common/sdl/sdl.h"
 #include "yuzu_cmd/emu_window/emu_window_sdl2.h"
 
+class SDLGLContext : public Core::Frontend::GraphicsContext {
+public:
+    explicit SDLGLContext() {
+        // create a hidden window to make the shared context against
+        window = SDL_CreateWindow("", SDL_WINDOWPOS_UNDEFINED, // x position
+                                  SDL_WINDOWPOS_UNDEFINED,     // y position
+                                  Layout::ScreenUndocked::Width, Layout::ScreenUndocked::Height,
+                                  SDL_WINDOW_OPENGL | SDL_WINDOW_HIDDEN);
+        context = SDL_GL_CreateContext(window);
+    }
+
+    ~SDLGLContext() {
+        SDL_GL_DeleteContext(context);
+        SDL_DestroyWindow(window);
+    }
+
+    void MakeCurrent() override {
+        SDL_GL_MakeCurrent(window, context);
+    }
+
+    void DoneCurrent() override {
+        SDL_GL_MakeCurrent(window, nullptr);
+    }
+
+    void SwapBuffers() override {}
+
+private:
+    SDL_Window* window;
+    SDL_GLContext context;
+};
+
 void EmuWindow_SDL2::OnMouseMotion(s32 x, s32 y) {
     TouchMoved((unsigned)std::max(x, 0), (unsigned)std::max(y, 0));
     InputCommon::GetMotionEmu()->Tilt(x, y);
@@ -153,6 +184,7 @@ EmuWindow_SDL2::EmuWindow_SDL2(bool fullscreen) {
     SDL_GL_SetAttribute(SDL_GL_GREEN_SIZE, 8);
     SDL_GL_SetAttribute(SDL_GL_BLUE_SIZE, 8);
     SDL_GL_SetAttribute(SDL_GL_ALPHA_SIZE, 0);
+    SDL_GL_SetAttribute(SDL_GL_SHARE_WITH_CURRENT_CONTEXT, 1);
 
     std::string window_title = fmt::format("yuzu {} | {}-{}", Common::g_build_fullname,
                                            Common::g_scm_branch, Common::g_scm_desc);
@@ -171,7 +203,6 @@ EmuWindow_SDL2::EmuWindow_SDL2(bool fullscreen) {
     if (fullscreen) {
         Fullscreen();
     }
-
     gl_context = SDL_GL_CreateContext(render_window);
 
     if (gl_context == nullptr) {
@@ -280,3 +311,7 @@ void EmuWindow_SDL2::OnMinimalClientAreaChangeRequest(
 
     SDL_SetWindowMinimumSize(render_window, minimal_size.first, minimal_size.second);
 }
+
+std::unique_ptr<Core::Frontend::GraphicsContext> EmuWindow_SDL2::CreateSharedContext() const {
+    return std::make_unique<SDLGLContext>();
+}

src/yuzu_cmd/emu_window/emu_window_sdl2.h

@@ -27,6 +27,8 @@ public:
     /// Releases the GL context from the caller thread
     void DoneCurrent() override;
 
+    std::unique_ptr<Core::Frontend::GraphicsContext> CreateSharedContext() const override;
+
     /// Whether the window is still open, and a close request hasn't yet been sent
     bool IsOpen() const;