Rasterizer cache refactor v2 (#6479)

* rasterizer_cache: Switch to template

* Eliminates all opengl references in the rasterizer cache headers
  thus completing the backend abstraction

* rasterizer_cache: Switch to page table

* Surface storage isn't particularly interval sensitive so we can use a page table to make it faster

* rasterizer_cache: Move sampler management out of rasterizer cache

* rasterizer_cache: Remove shared_ptr usage

* Switches to yuzu's slot vector for improved memory locality.

* rasterizer_cache: Rework reinterpretation lookup

* citra_qt: Per game texture filter

* rasterizer_cache: Log additional settings

* gl_texture_runtime: Resolve shadow map comment

* rasterizer_cache: Don't use float for viewport

* gl_texture_runtime: Fix custom allocation recycling

* rasterizer_cache: Minor cleanups

* Cleanup texture cubes when all the faces have been unregistered from the cache

* custom_tex_manager: Allow multiple hash mappings per texture

* code: Move slot vector to common

* rasterizer_cache: Prevent texture cube crashes

* rasterizer_cache: Improve mipmap validation

* CanSubRect now works properly when validating multi-level surfaces, for example Dark Moon validates a 4 level surface from a 3 level one and it works

* gl_blit_handler: Unbind sampler on reinterpretation

src/citra_qt/configuration/configure_enhancements.cpp

@@ -208,12 +208,13 @@ void ConfigureEnhancements::SetupPerGameUI() {
 
     ConfigurationShared::SetColoredComboBox(
         ui->resolution_factor_combobox, ui->widget_resolution,
-        static_cast<u32>(Settings::values.resolution_factor.GetValue(true)));
+        static_cast<int>(Settings::values.resolution_factor.GetValue(true)));
 
-    ConfigurationShared::SetColoredComboBox(ui->texture_filter_combobox, ui->widget_texture_filter,
-                                            0);
+    ConfigurationShared::SetColoredComboBox(
+        ui->texture_filter_combobox, ui->widget_texture_filter,
+        static_cast<int>(Settings::values.texture_filter.GetValue(true)));
 
     ConfigurationShared::SetColoredComboBox(
         ui->layout_combobox, ui->widget_layout,
-        static_cast<u32>(Settings::values.layout_option.GetValue(true)));
+        static_cast<int>(Settings::values.layout_option.GetValue(true)));
 }

src/common/CMakeLists.txt

@@ -100,6 +100,7 @@ add_library(citra_common STATIC
     scope_exit.h
     settings.cpp
     settings.h
+    slot_vector.h
     serialization/atomic.h
     serialization/boost_discrete_interval.hpp
     serialization/boost_flat_set.h

src/common/settings.cpp

@@ -163,6 +163,8 @@ void LogSettings() {
     log_setting("Layout_LargeScreenProportion", values.large_screen_proportion.GetValue());
     log_setting("Utility_DumpTextures", values.dump_textures.GetValue());
     log_setting("Utility_CustomTextures", values.custom_textures.GetValue());
+    log_setting("Utility_PreloadTextures", values.preload_textures.GetValue());
+    log_setting("Utility_AsyncCustomLoading", values.async_custom_loading.GetValue());
     log_setting("Utility_UseDiskShaderCache", values.use_disk_shader_cache.GetValue());
     log_setting("Audio_Emulation", GetAudioEmulationName(values.audio_emulation.GetValue()));
     log_setting("Audio_OutputType", values.output_type.GetValue());

src/common/slot_vector.h

@@ -0,0 +1,154 @@
+// Copyright 2020 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <bit>
+#include <compare>
+#include <numeric>
+#include <type_traits>
+#include <utility>
+#include <vector>
+#include "common/assert.h"
+#include "common/common_types.h"
+
+namespace Common {
+
+struct SlotId {
+    static constexpr u32 INVALID_INDEX = std::numeric_limits<u32>::max();
+
+    constexpr auto operator<=>(const SlotId&) const noexcept = default;
+
+    constexpr explicit operator bool() const noexcept {
+        return index != INVALID_INDEX;
+    }
+
+    u32 index = INVALID_INDEX;
+};
+
+template <class T>
+class SlotVector {
+public:
+    ~SlotVector() noexcept {
+        size_t index = 0;
+        for (u64 bits : stored_bitset) {
+            for (size_t bit = 0; bits; ++bit, bits >>= 1) {
+                if ((bits & 1) != 0) {
+                    values[index + bit].object.~T();
+                }
+            }
+            index += 64;
+        }
+        delete[] values;
+    }
+
+    [[nodiscard]] T& operator[](SlotId id) noexcept {
+        ValidateIndex(id);
+        return values[id.index].object;
+    }
+
+    [[nodiscard]] const T& operator[](SlotId id) const noexcept {
+        ValidateIndex(id);
+        return values[id.index].object;
+    }
+
+    template <typename... Args>
+    [[nodiscard]] SlotId insert(Args&&... args) noexcept {
+        const u32 index = FreeValueIndex();
+        new (&values[index].object) T(std::forward<Args>(args)...);
+        SetStorageBit(index);
+
+        return SlotId{index};
+    }
+
+    void erase(SlotId id) noexcept {
+        values[id.index].object.~T();
+        free_list.push_back(id.index);
+        ResetStorageBit(id.index);
+    }
+
+private:
+    struct NonTrivialDummy {
+        NonTrivialDummy() noexcept {}
+    };
+
+    union Entry {
+        Entry() noexcept : dummy{} {}
+        ~Entry() noexcept {}
+
+        NonTrivialDummy dummy;
+        T object;
+    };
+
+    void SetStorageBit(u32 index) noexcept {
+        stored_bitset[index / 64] |= u64(1) << (index % 64);
+    }
+
+    void ResetStorageBit(u32 index) noexcept {
+        stored_bitset[index / 64] &= ~(u64(1) << (index % 64));
+    }
+
+    bool ReadStorageBit(u32 index) noexcept {
+        return ((stored_bitset[index / 64] >> (index % 64)) & 1) != 0;
+    }
+
+    void ValidateIndex(SlotId id) const noexcept {
+        DEBUG_ASSERT(id);
+        DEBUG_ASSERT(id.index / 64 < stored_bitset.size());
+        DEBUG_ASSERT(((stored_bitset[id.index / 64] >> (id.index % 64)) & 1) != 0);
+    }
+
+    [[nodiscard]] u32 FreeValueIndex() noexcept {
+        if (free_list.empty()) {
+            Reserve(values_capacity ? (values_capacity << 1) : 1);
+        }
+
+        const u32 free_index = free_list.back();
+        free_list.pop_back();
+        return free_index;
+    }
+
+    void Reserve(size_t new_capacity) noexcept {
+        Entry* const new_values = new Entry[new_capacity];
+        size_t index = 0;
+        for (u64 bits : stored_bitset) {
+            for (size_t bit = 0; bits; ++bit, bits >>= 1) {
+                const size_t i = index + bit;
+                if ((bits & 1) == 0) {
+                    continue;
+                }
+                T& old_value = values[i].object;
+                new (&new_values[i].object) T(std::move(old_value));
+                old_value.~T();
+            }
+            index += 64;
+        }
+
+        stored_bitset.resize((new_capacity + 63) / 64);
+
+        const size_t old_free_size = free_list.size();
+        free_list.resize(old_free_size + (new_capacity - values_capacity));
+        std::iota(free_list.begin() + old_free_size, free_list.end(),
+                  static_cast<u32>(values_capacity));
+
+        delete[] values;
+        values = new_values;
+        values_capacity = new_capacity;
+    }
+
+    Entry* values = nullptr;
+    size_t values_capacity = 0;
+
+    std::vector<u64> stored_bitset;
+    std::vector<u32> free_list;
+};
+
+} // namespace Common
+
+template <>
+struct std::hash<Common::SlotId> {
+    size_t operator()(const Common::SlotId& id) const noexcept {
+        return std::hash<u32>{}(id.index);
+    }
+};

src/video_core/CMakeLists.txt

@@ -40,6 +40,8 @@ add_library(video_core STATIC
     rasterizer_cache/pixel_format.h
     rasterizer_cache/rasterizer_cache.cpp
     rasterizer_cache/rasterizer_cache.h
+    rasterizer_cache/rasterizer_cache_base.h
+    rasterizer_cache/sampler_params.h
     rasterizer_cache/surface_base.cpp
     rasterizer_cache/surface_base.h
     rasterizer_cache/surface_params.cpp
@@ -53,10 +55,9 @@ add_library(video_core STATIC
     renderer_opengl/gl_blit_helper.h
     renderer_opengl/gl_driver.cpp
     renderer_opengl/gl_driver.h
-    renderer_opengl/gl_format_reinterpreter.cpp
-    renderer_opengl/gl_format_reinterpreter.h
     renderer_opengl/gl_rasterizer.cpp
     renderer_opengl/gl_rasterizer.h
+    renderer_opengl/gl_rasterizer_cache.cpp
     renderer_opengl/gl_resource_manager.cpp
     renderer_opengl/gl_resource_manager.h
     renderer_opengl/gl_shader_decompiler.cpp
@@ -126,7 +127,7 @@ target_include_directories(video_core PRIVATE ${HOST_SHADERS_INCLUDE})
 create_target_directory_groups(video_core)
 
 target_link_libraries(video_core PUBLIC citra_common citra_core)
-target_link_libraries(video_core PRIVATE glad json-headers dds-ktx nihstro-headers Boost::serialization)
+target_link_libraries(video_core PRIVATE Boost::serialization dds-ktx glad json-headers nihstro-headers tsl::robin_map)
 set_target_properties(video_core PROPERTIES INTERPROCEDURAL_OPTIMIZATION ${ENABLE_LTO})
 
 if ("x86_64" IN_LIST ARCHITECTURE)

src/video_core/custom_textures/custom_tex_manager.cpp

@@ -13,6 +13,7 @@
 #include "core/frontend/image_interface.h"
 #include "video_core/custom_textures/custom_tex_manager.h"
 #include "video_core/rasterizer_cache/surface_params.h"
+#include "video_core/rasterizer_cache/utils.h"
 
 namespace VideoCore {
 
@@ -21,7 +22,7 @@ namespace {
 MICROPROFILE_DEFINE(CustomTexManager_TickFrame, "CustomTexManager", "TickFrame",
                     MP_RGB(54, 16, 32));
 
-constexpr std::size_t MAX_UPLOADS_PER_TICK = 16;
+constexpr std::size_t MAX_UPLOADS_PER_TICK = 8;
 
 bool IsPow2(u32 value) {
     return value != 0 && (value & (value - 1)) == 0;
@@ -111,11 +112,14 @@ void CustomTexManager::FindCustomTextures() {
         if (!ParseFilename(file, texture)) {
             continue;
         }
-        auto& material = material_map[texture->hash];
-        if (!material) {
-            material = std::make_unique<Material>();
+        for (const u64 hash : texture->hashes) {
+            auto& material = material_map[hash];
+            if (!material) {
+                material = std::make_unique<Material>();
+            }
+            material->hash = hash;
+            material->AddMapTexture(texture);
         }
-        material->AddMapTexture(texture);
     }
     textures_loaded = true;
 }
@@ -145,21 +149,25 @@ bool CustomTexManager::ParseFilename(const FileUtil::FSTEntry& file, CustomTextu
         parts.pop_back();
     }
 
-    // First check if the path is mapped directly to a hash
-    // before trying to parse the texture filename.
+    // First look if this file is mapped to any number of hashes.
+    std::vector<u64>& hashes = texture->hashes;
     const auto it = path_to_hash_map.find(file.virtualName);
     if (it != path_to_hash_map.end()) {
-        texture->hash = it->second;
-    } else {
-        u32 width;
-        u32 height;
-        u32 format;
-        unsigned long long hash{};
-        if (std::sscanf(parts.back().c_str(), "tex1_%ux%u_%llX_%u", &width, &height, &hash,
-                        &format) != 4) {
-            return false;
-        }
-        texture->hash = hash;
+        hashes = it->second;
+    }
+
+    // It's also possible for pack creators to retain the default texture name
+    // still map the texture to another hash. Support that as well.
+    u32 width;
+    u32 height;
+    u32 format;
+    unsigned long long hash{};
+    const bool is_parsed = std::sscanf(parts.back().c_str(), "tex1_%ux%u_%llX_%u", &width, &height,
+                                       &hash, &format) == 4;
+    const bool is_mapped =
+        !hashes.empty() && std::find(hashes.begin(), hashes.end(), hash) != hashes.end();
+    if (is_parsed && !is_mapped) {
+        hashes.push_back(hash);
     }
 
     texture->path = file.physicalName;
@@ -181,9 +189,9 @@ void CustomTexManager::WriteConfig() {
     json["description"] = "A graphics pack";
 
     auto& options = json["options"];
-    options["skip_mipmap"] = skip_mipmap;
-    options["flip_png_files"] = flip_png_files;
-    options["use_new_hash"] = use_new_hash;
+    options["skip_mipmap"] = false;
+    options["flip_png_files"] = true;
+    options["use_new_hash"] = true;
 
     FileUtil::IOFile file{pack_config, "w"};
     const std::string output = json.dump(4);
@@ -311,7 +319,7 @@ void CustomTexManager::ReadConfig(const std::string& load_path) {
         return;
     }
 
-    nlohmann::json json = nlohmann::json::parse(config);
+    nlohmann::json json = nlohmann::json::parse(config, nullptr, false, true);
 
     const auto& options = json["options"];
     skip_mipmap = options["skip_mipmap"].get<bool>();
@@ -330,13 +338,7 @@ void CustomTexManager::ReadConfig(const std::string& load_path) {
         const auto parse = [&](const std::string& file) {
             const std::string filename{FileUtil::GetFilename(file)};
             auto [it, new_hash] = path_to_hash_map.try_emplace(filename);
-            if (!new_hash) {
-                LOG_ERROR(Render,
-                          "File {} with key {} already exists and is mapped to {:#016X}, skipping",
-                          file, material.key(), path_to_hash_map[filename]);
-                return;
-            }
-            it->second = hash;
+            it->second.push_back(hash);
         };
         const auto value = material.value();
         if (value.is_string()) {

src/video_core/custom_textures/custom_tex_manager.h

@@ -81,7 +81,7 @@ private:
     Frontend::ImageInterface& image_interface;
     std::unordered_set<u64> dumped_textures;
     std::unordered_map<u64, std::unique_ptr<Material>> material_map;
-    std::unordered_map<std::string, u64> path_to_hash_map;
+    std::unordered_map<std::string, std::vector<u64>> path_to_hash_map;
     std::vector<std::unique_ptr<CustomTexture>> custom_textures;
     std::list<AsyncUpload> async_uploads;
     std::unique_ptr<Common::ThreadWorker> workers;

src/video_core/custom_textures/material.cpp

@@ -55,6 +55,11 @@ CustomTexture::CustomTexture(Frontend::ImageInterface& image_interface_)
 CustomTexture::~CustomTexture() = default;
 
 void CustomTexture::LoadFromDisk(bool flip_png) {
+    std::scoped_lock lock{decode_mutex};
+    if (IsLoaded()) {
+        return;
+    }
+
     FileUtil::IOFile file{path, "rb"};
     std::vector<u8> input(file.GetSize());
     if (file.ReadBytes(input.data(), input.size()) != input.size()) {
@@ -71,7 +76,6 @@ void CustomTexture::LoadFromDisk(bool flip_png) {
         break;
     default:
         LOG_ERROR(Render, "Unknown file format {}", file_format);
-        return;
     }
 }
 
@@ -102,8 +106,7 @@ void Material::LoadFromDisk(bool flip_png) noexcept {
         }
         texture->LoadFromDisk(flip_png);
         size += texture->data.size();
-        LOG_DEBUG(Render, "Loading {} map {} with hash {:#016X}", MapTypeName(texture->type),
-                  texture->path, texture->hash);
+        LOG_DEBUG(Render, "Loading {} map {}", MapTypeName(texture->type), texture->path);
     }
     if (!textures[0]) {
         LOG_ERROR(Render, "Unable to create material without color texture!");
@@ -121,7 +124,7 @@ void Material::LoadFromDisk(bool flip_png) noexcept {
             LOG_ERROR(Render,
                       "{} map {} of material with hash {:#016X} has dimentions {}x{} "
                       "which do not match the color texture dimentions {}x{}",
-                      MapTypeName(texture->type), texture->path, texture->hash, texture->width,
+                      MapTypeName(texture->type), texture->path, hash, texture->width,
                       texture->height, width, height);
             state = DecodeState::Failed;
             return;

src/video_core/custom_textures/material.h

@@ -6,6 +6,7 @@
 
 #include <array>
 #include <atomic>
+#include <mutex>
 #include <span>
 #include <string>
 #include <vector>
@@ -39,7 +40,7 @@ public:
     void LoadFromDisk(bool flip_png);
 
     [[nodiscard]] bool IsParsed() const noexcept {
-        return file_format != CustomFileFormat::None && hash != 0;
+        return file_format != CustomFileFormat::None && !hashes.empty();
     }
 
     [[nodiscard]] bool IsLoaded() const noexcept {
@@ -56,7 +57,8 @@ public:
     std::string path;
     u32 width;
     u32 height;
-    u64 hash;
+    std::vector<u64> hashes;
+    std::mutex decode_mutex;
     CustomPixelFormat format;
     CustomFileFormat file_format;
     std::vector<u8> data;
@@ -67,6 +69,7 @@ struct Material {
     u32 width;
     u32 height;
     u64 size;
+    u64 hash;
     CustomPixelFormat format;
     std::array<CustomTexture*, MAX_MAPS> textures;
     std::atomic<DecodeState> state{};

src/video_core/host_shaders/format_reinterpreter/d24s8_to_rgba8.frag

@@ -4,29 +4,18 @@
 
 //? #version 430 core
 
-layout(location = 0) in mediump vec2 dst_coord;
+layout(location = 0) in mediump vec2 tex_coord;
 layout(location = 0) out lowp vec4 frag_color;
 
 layout(binding = 0) uniform highp sampler2D depth;
 layout(binding = 1) uniform lowp usampler2D stencil;
-uniform mediump ivec2 dst_size;
-uniform mediump ivec2 src_size;
-uniform mediump ivec2 src_offset;
 
 void main() {
-    mediump ivec2 tex_coord;
-    if (src_size == dst_size) {
-        tex_coord = ivec2(dst_coord);
-    } else {
-        highp int tex_index = int(dst_coord.y) * dst_size.x + int(dst_coord.x);
-        mediump int y = tex_index / src_size.x;
-        tex_coord = ivec2(tex_index - y * src_size.x, y);
-    }
-    tex_coord -= src_offset;
-
+    mediump vec2 coord = tex_coord * vec2(textureSize(depth, 0));
+    mediump ivec2 tex_icoord = ivec2(coord);
     highp uint depth_val =
-        uint(texelFetch(depth, tex_coord, 0).x * (exp2(32.0) - 1.0));
-    lowp uint stencil_val = texelFetch(stencil, tex_coord, 0).x;
+        uint(texelFetch(depth, tex_icoord, 0).x * (exp2(32.0) - 1.0));
+    lowp uint stencil_val = texelFetch(stencil, tex_icoord, 0).x;
     highp uvec4 components =
         uvec4(stencil_val, (uvec3(depth_val) >> uvec3(24u, 16u, 8u)) & 0x000000FFu);
     frag_color = vec4(components) / (exp2(8.0) - 1.0);

src/video_core/host_shaders/format_reinterpreter/fullscreen_quad.vert

@@ -6,7 +6,7 @@
 
 layout(location = 0) out vec2 dst_coord;
 
-uniform mediump ivec2 dst_size;
+layout(location = 0) uniform mediump ivec2 dst_size;
 
 const vec2 vertices[4] =
 vec2[4](vec2(-1.0, -1.0), vec2(1.0, -1.0), vec2(-1.0, 1.0), vec2(1.0, 1.0));

src/video_core/host_shaders/format_reinterpreter/rgba4_to_rgb5a1.frag

@@ -4,26 +4,15 @@
 
 //? #version 430 core
 
-layout(location = 0) in mediump vec2 dst_coord;
+layout(location = 0) in mediump vec2 tex_coord;
 layout(location = 0) out lowp vec4 frag_color;
 
 layout(binding = 0) uniform lowp sampler2D source;
-uniform mediump ivec2 dst_size;
-uniform mediump ivec2 src_size;
-uniform mediump ivec2 src_offset;
 
 void main() {
-    mediump ivec2 tex_coord;
-    if (src_size == dst_size) {
-        tex_coord = ivec2(dst_coord);
-    } else {
-        highp int tex_index = int(dst_coord.y) * dst_size.x + int(dst_coord.x);
-        mediump int y = tex_index / src_size.x;
-        tex_coord = ivec2(tex_index - y * src_size.x, y);
-    }
-    tex_coord -= src_offset;
-
-    lowp ivec4 rgba4 = ivec4(texelFetch(source, tex_coord, 0) * (exp2(4.0) - 1.0));
+    mediump vec2 coord = tex_coord * vec2(textureSize(source, 0));
+    mediump ivec2 tex_icoord = ivec2(coord);
+    lowp ivec4 rgba4 = ivec4(texelFetch(source, tex_icoord, 0) * (exp2(4.0) - 1.0));
     lowp ivec3 rgb5 =
         ((rgba4.rgb << ivec3(1, 2, 3)) | (rgba4.gba >> ivec3(3, 2, 1))) & 0x1F;
     frag_color = vec4(vec3(rgb5) / (exp2(5.0) - 1.0), rgba4.a & 0x01);

src/video_core/rasterizer_cache/framebuffer_base.cpp

@@ -10,9 +10,9 @@ namespace VideoCore {
 
 FramebufferBase::FramebufferBase() = default;
 
-FramebufferBase::FramebufferBase(const Pica::Regs& regs, const SurfaceBase* const color,
-                                 u32 color_level, const SurfaceBase* const depth_stencil,
-                                 u32 depth_level, Common::Rectangle<u32> surfaces_rect) {
+FramebufferBase::FramebufferBase(const Pica::Regs& regs, const SurfaceBase* color, u32 color_level,
+                                 const SurfaceBase* depth_stencil, u32 depth_level,
+                                 Common::Rectangle<u32> surfaces_rect) {
     res_scale = color ? color->res_scale : (depth_stencil ? depth_stencil->res_scale : 1u);
 
     // Determine the draw rectangle (render area + scissor)
@@ -31,10 +31,10 @@ FramebufferBase::FramebufferBase(const Pica::Regs& regs, const SurfaceBase* cons
                         surfaces_rect.bottom, surfaces_rect.top);
 
     // Update viewport
-    viewport.x = static_cast<f32>(surfaces_rect.left + viewport_rect.left * res_scale);
-    viewport.y = static_cast<f32>(surfaces_rect.bottom + viewport_rect.bottom * res_scale);
-    viewport.width = static_cast<f32>(viewport_rect.GetWidth() * res_scale);
-    viewport.height = static_cast<f32>(viewport_rect.GetHeight() * res_scale);
+    viewport.x = static_cast<s32>(surfaces_rect.left) + viewport_rect.left * res_scale;
+    viewport.y = static_cast<s32>(surfaces_rect.bottom) + viewport_rect.bottom * res_scale;
+    viewport.width = static_cast<s32>(viewport_rect.GetWidth() * res_scale);
+    viewport.height = static_cast<s32>(viewport_rect.GetHeight() * res_scale);
 
     // Scissor checks are window-, not viewport-relative, which means that if the cached texture
     // sub-rect changes, the scissor bounds also need to be updated.

src/video_core/rasterizer_cache/framebuffer_base.h

@@ -16,10 +16,10 @@ namespace VideoCore {
 class SurfaceBase;
 
 struct ViewportInfo {
-    f32 x;
-    f32 y;
-    f32 width;
-    f32 height;
+    s32 x;
+    s32 y;
+    s32 width;
+    s32 height;
 };
 
 /**
@@ -29,8 +29,8 @@ struct ViewportInfo {
 class FramebufferBase {
 public:
     FramebufferBase();
-    FramebufferBase(const Pica::Regs& regs, const SurfaceBase* const color, u32 color_level,
-                    const SurfaceBase* const depth_stencil, u32 depth_level,
+    FramebufferBase(const Pica::Regs& regs, const SurfaceBase* color, u32 color_level,
+                    const SurfaceBase* depth_stencil, u32 depth_level,
                     Common::Rectangle<u32> surfaces_rect);
 
     SurfaceParams ColorParams() const noexcept {
@@ -66,6 +66,7 @@ protected:
         switch (type) {
         case VideoCore::SurfaceType::Color:
             return 0;
+        case VideoCore::SurfaceType::Depth:
         case VideoCore::SurfaceType::DepthStencil:
             return 1;
         default:

src/video_core/rasterizer_cache/rasterizer_cache_base.h

@@ -0,0 +1,229 @@
+// Copyright 2023 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <functional>
+#include <optional>
+#include <unordered_map>
+#include <vector>
+#include <boost/icl/interval_map.hpp>
+#include <tsl/robin_map.h>
+#include "video_core/rasterizer_cache/sampler_params.h"
+#include "video_core/rasterizer_cache/surface_base.h"
+
+namespace Memory {
+class MemorySystem;
+}
+
+namespace Pica {
+struct Regs;
+}
+
+namespace Pica::Texture {
+struct TextureInfo;
+}
+
+namespace VideoCore {
+
+enum class ScaleMatch {
+    Exact,   ///< Only accept same res scale
+    Upscale, ///< Only allow higher scale than params
+    Ignore   ///< Accept every scaled res
+};
+
+enum class MatchFlags {
+    Exact = 1 << 0,       ///< Surface perfectly matches params
+    SubRect = 1 << 1,     ///< Surface encompasses params
+    Copy = 1 << 2,        ///< Surface that can be used as a copy source
+    Expand = 1 << 3,      ///< Surface that can expand params
+    TexCopy = 1 << 4,     ///< Surface that will match a display transfer "texture copy" parameters
+    Reinterpret = 1 << 5, ///< Surface might have different pixel format.
+};
+
+DECLARE_ENUM_FLAG_OPERATORS(MatchFlags);
+
+class CustomTexManager;
+class RendererBase;
+
+template <class T>
+class RasterizerCache {
+    /// Address shift for caching surfaces into a hash table
+    static constexpr u64 CITRA_PAGEBITS = 18;
+
+    using Runtime = typename T::Runtime;
+    using Sampler = typename T::Sampler;
+    using Surface = typename T::Surface;
+    using Framebuffer = typename T::Framebuffer;
+
+    using SurfaceMap = boost::icl::interval_map<PAddr, SurfaceId, boost::icl::partial_absorber,
+                                                std::less, boost::icl::inplace_plus,
+                                                boost::icl::inter_section, SurfaceInterval>;
+
+    using SurfaceRect_Tuple = std::pair<SurfaceId, Common::Rectangle<u32>>;
+    using PageMap = boost::icl::interval_map<u32, int>;
+
+    struct RenderTargets {
+        SurfaceId color_id;
+        SurfaceId depth_id;
+    };
+
+    struct TextureCube {
+        SurfaceId surface_id;
+        std::array<SurfaceId, 6> face_ids;
+        std::array<u64, 6> ticks;
+    };
+
+public:
+    explicit RasterizerCache(Memory::MemorySystem& memory, CustomTexManager& custom_tex_manager,
+                             Runtime& runtime, Pica::Regs& regs, RendererBase& renderer);
+    ~RasterizerCache();
+
+    /// Notify the cache that a new frame has been queued
+    void TickFrame();
+
+    /// Perform hardware accelerated texture copy according to the provided configuration
+    bool AccelerateTextureCopy(const GPU::Regs::DisplayTransferConfig& config);
+
+    /// Perform hardware accelerated display transfer according to the provided configuration
+    bool AccelerateDisplayTransfer(const GPU::Regs::DisplayTransferConfig& config);
+
+    /// Perform hardware accelerated memory fill according to the provided configuration
+    bool AccelerateFill(const GPU::Regs::MemoryFillConfig& config);
+
+    /// Returns a reference to the surface object assigned to surface_id
+    Surface& GetSurface(SurfaceId surface_id);
+
+    /// Returns a reference to the sampler object matching the provided configuration
+    Sampler& GetSampler(const Pica::TexturingRegs::TextureConfig& config);
+    Sampler& GetSampler(SamplerId sampler_id);
+
+    /// Copy one surface's region to another
+    void CopySurface(Surface& src_surface, Surface& dst_surface, SurfaceInterval copy_interval);
+
+    /// Load a texture from 3DS memory to OpenGL and cache it (if not already cached)
+    SurfaceId GetSurface(const SurfaceParams& params, ScaleMatch match_res_scale,
+                         bool load_if_create);
+
+    /// Attempt to find a subrect (resolution scaled) of a surface, otherwise loads a texture from
+    /// 3DS memory to OpenGL and caches it (if not already cached)
+    SurfaceRect_Tuple GetSurfaceSubRect(const SurfaceParams& params, ScaleMatch match_res_scale,
+                                        bool load_if_create);
+
+    /// Get a surface based on the texture configuration
+    Surface& GetTextureSurface(const Pica::TexturingRegs::FullTextureConfig& config);
+    SurfaceId GetTextureSurface(const Pica::Texture::TextureInfo& info, u32 max_level = 0);
+
+    /// Get a texture cube based on the texture configuration
+    Surface& GetTextureCube(const TextureCubeConfig& config);
+
+    /// Get the color and depth surfaces based on the framebuffer configuration
+    Framebuffer GetFramebufferSurfaces(bool using_color_fb, bool using_depth_fb);
+
+    /// Marks the draw rectangle defined in framebuffer as invalid
+    void InvalidateFramebuffer(const Framebuffer& framebuffer);
+
+    /// Get a surface that matches a "texture copy" display transfer config
+    SurfaceRect_Tuple GetTexCopySurface(const SurfaceParams& params);
+
+    /// Write any cached resources overlapping the region back to memory (if dirty)
+    void FlushRegion(PAddr addr, u32 size, SurfaceId flush_surface = {});
+
+    /// Mark region as being invalidated by region_owner (nullptr if 3DS memory)
+    void InvalidateRegion(PAddr addr, u32 size, SurfaceId region_owner = {});
+
+    /// Flush all cached resources tracked by this cache manager
+    void FlushAll();
+
+    /// Clear all cached resources tracked by this cache manager
+    void ClearAll(bool flush);
+
+private:
+    /// Iterate over all page indices in a range
+    template <typename Func>
+    void ForEachPage(PAddr addr, size_t size, Func&& func) {
+        static constexpr bool RETURNS_BOOL = std::is_same_v<std::invoke_result<Func, u64>, bool>;
+        const u64 page_end = (addr + size - 1) >> CITRA_PAGEBITS;
+        for (u64 page = addr >> CITRA_PAGEBITS; page <= page_end; ++page) {
+            if constexpr (RETURNS_BOOL) {
+                if (func(page)) {
+                    break;
+                }
+            } else {
+                func(page);
+            }
+        }
+    }
+
+    /// Iterates over all the surfaces in a region calling func
+    template <typename Func>
+    void ForEachSurfaceInRegion(PAddr addr, size_t size, Func&& func);
+
+    /// Get the best surface match (and its match type) for the given flags
+    template <MatchFlags find_flags>
+    SurfaceId FindMatch(const SurfaceParams& params, ScaleMatch match_scale_type,
+                        std::optional<SurfaceInterval> validate_interval = std::nullopt);
+
+    /// Transfers ownership of a memory region from src_surface to dest_surface
+    void DuplicateSurface(SurfaceId src_id, SurfaceId dst_id);
+
+    /// Update surface's texture for given region when necessary
+    void ValidateSurface(SurfaceId surface, PAddr addr, u32 size);
+
+    /// Copies pixel data in interval from the guest VRAM to the host GPU surface
+    void UploadSurface(Surface& surface, SurfaceInterval interval);
+
+    /// Uploads a custom texture identified with hash to the target surface
+    bool UploadCustomSurface(SurfaceId surface_id, SurfaceInterval interval);
+
+    /// Copies pixel data in interval from the host GPU surface to the guest VRAM
+    void DownloadSurface(Surface& surface, SurfaceInterval interval);
+
+    /// Downloads a fill surface to guest VRAM
+    void DownloadFillSurface(Surface& surface, SurfaceInterval interval);
+
+    /// Attempt to find a reinterpretable surface in the cache and use it to copy for validation
+    bool ValidateByReinterpretation(Surface& surface, SurfaceParams params,
+                                    const SurfaceInterval& interval);
+
+    /// Return true if a surface with an invalid pixel format exists at the interval
+    bool IntervalHasInvalidPixelFormat(const SurfaceParams& params, SurfaceInterval interval);
+
+    /// Create a new surface
+    SurfaceId CreateSurface(const SurfaceParams& params);
+
+    /// Register surface into the cache
+    void RegisterSurface(SurfaceId surface);
+
+    /// Remove surface from the cache
+    void UnregisterSurface(SurfaceId surface);
+
+    /// Unregisters all surfaces from the cache
+    void UnregisterAll();
+
+    /// Increase/decrease the number of surface in pages touching the specified region
+    void UpdatePagesCachedCount(PAddr addr, u32 size, int delta);
+
+private:
+    Memory::MemorySystem& memory;
+    CustomTexManager& custom_tex_manager;
+    Runtime& runtime;
+    Pica::Regs& regs;
+    RendererBase& renderer;
+    std::unordered_map<TextureCubeConfig, TextureCube> texture_cube_cache;
+    tsl::robin_pg_map<u64, std::vector<SurfaceId>, Common::IdentityHash<u64>> page_table;
+    std::unordered_map<SamplerParams, SamplerId> samplers;
+    Common::SlotVector<Surface> slot_surfaces;
+    Common::SlotVector<Sampler> slot_samplers;
+    SurfaceMap dirty_regions;
+    PageMap cached_pages;
+    std::vector<SurfaceId> remove_surfaces;
+    u32 resolution_scale_factor;
+    RenderTargets render_targets;
+    bool use_filter;
+    bool dump_textures;
+    bool use_custom_textures;
+};
+
+} // namespace VideoCore

src/video_core/rasterizer_cache/sampler_params.h

@@ -0,0 +1,43 @@
+// Copyright 2023 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <compare>
+#include "common/hash.h"
+#include "video_core/regs_texturing.h"
+
+namespace VideoCore {
+
+struct SamplerParams {
+    using TextureConfig = Pica::TexturingRegs::TextureConfig;
+    TextureConfig::TextureFilter mag_filter;
+    TextureConfig::TextureFilter min_filter;
+    TextureConfig::TextureFilter mip_filter;
+    TextureConfig::WrapMode wrap_s;
+    TextureConfig::WrapMode wrap_t;
+    u32 border_color = 0;
+    u32 lod_min = 0;
+    u32 lod_max = 0;
+    s32 lod_bias = 0;
+
+    auto operator<=>(const SamplerParams&) const noexcept = default;
+
+    const u64 Hash() const {
+        return Common::ComputeHash64(this, sizeof(SamplerParams));
+    }
+};
+static_assert(std::has_unique_object_representations_v<SamplerParams>,
+              "SamplerParams is not suitable for hashing");
+
+} // namespace VideoCore
+
+namespace std {
+template <>
+struct hash<VideoCore::SamplerParams> {
+    std::size_t operator()(const VideoCore::SamplerParams& params) const noexcept {
+        return params.Hash();
+    }
+};
+} // namespace std

src/video_core/rasterizer_cache/surface_base.cpp

@@ -45,13 +45,16 @@ bool SurfaceBase::CanFill(const SurfaceParams& dest_surface, SurfaceInterval fil
 }
 
 bool SurfaceBase::CanCopy(const SurfaceParams& dest_surface, SurfaceInterval copy_interval) const {
-    SurfaceParams subrect_params = dest_surface.FromInterval(copy_interval);
+    const SurfaceParams subrect_params = dest_surface.FromInterval(copy_interval);
     ASSERT(subrect_params.GetInterval() == copy_interval);
-    if (CanSubRect(subrect_params))
-        return true;
 
-    if (CanFill(dest_surface, copy_interval))
+    if (CanSubRect(subrect_params)) {
         return true;
+    }
+
+    if (CanFill(dest_surface, copy_interval)) {
+        return true;
+    }
 
     return false;
 }
@@ -102,6 +105,23 @@ SurfaceInterval SurfaceBase::GetCopyableInterval(const SurfaceParams& params) co
     return result;
 }
 
+Extent SurfaceBase::RealExtent(bool scaled) {
+    const bool is_custom = IsCustom();
+    u32 real_width = width;
+    u32 real_height = height;
+    if (is_custom) {
+        real_width = material->width;
+        real_height = material->height;
+    } else if (scaled) {
+        real_width = GetScaledWidth();
+        real_height = GetScaledHeight();
+    }
+    return Extent{
+        .width = real_width,
+        .height = real_height,
+    };
+}
+
 bool SurfaceBase::HasNormalMap() const noexcept {
     return material && material->Map(MapType::Normal) != nullptr;
 }

src/video_core/rasterizer_cache/surface_base.h

@@ -6,6 +6,7 @@
 
 #include <boost/icl/interval_set.hpp>
 #include "video_core/rasterizer_cache/surface_params.h"
+#include "video_core/rasterizer_cache/utils.h"
 
 namespace VideoCore {
 
@@ -13,6 +14,15 @@ using SurfaceRegions = boost::icl::interval_set<PAddr, std::less, SurfaceInterva
 
 struct Material;
 
+enum class SurfaceFlagBits : u32 {
+    Registered = 1 << 0, ///< Surface is registed in the rasterizer cache.
+    Picked = 1 << 1,     ///< Surface has been picked when searching for a match.
+    Tracked = 1 << 2,    ///< Surface is part of a texture cube and should be tracked.
+    Custom = 1 << 3,     ///< Surface texture has been replaced with a custom texture.
+    ShadowMap = 1 << 4,  ///< Surface is used during shadow rendering.
+};
+DECLARE_ENUM_FLAG_OPERATORS(SurfaceFlagBits);
+
 class SurfaceBase : public SurfaceParams {
 public:
     SurfaceBase(const SurfaceParams& params);
@@ -30,19 +40,27 @@ public:
     /// Returns the clear value used to validate another surface from this fill surface
     ClearValue MakeClearValue(PAddr copy_addr, PixelFormat dst_format);
 
+    /// Returns the internal surface extent.
+    Extent RealExtent(bool scaled = true);
+
     /// Returns true if the surface contains a custom material with a normal map.
     bool HasNormalMap() const noexcept;
 
+    bool Overlaps(PAddr overlap_addr, size_t overlap_size) const noexcept {
+        const PAddr overlap_end = overlap_addr + static_cast<PAddr>(overlap_size);
+        return addr < overlap_end && overlap_addr < end;
+    }
+
     u64 ModificationTick() const noexcept {
         return modification_tick;
     }
 
     bool IsCustom() const noexcept {
-        return is_custom && custom_format != CustomPixelFormat::Invalid;
+        return True(flags & SurfaceFlagBits::Custom) && custom_format != CustomPixelFormat::Invalid;
     }
 
     bool IsRegionValid(SurfaceInterval interval) const {
-        return (invalid_regions.find(interval) == invalid_regions.end());
+        return invalid_regions.find(interval) == invalid_regions.end();
     }
 
     void MarkValid(SurfaceInterval interval) {
@@ -65,8 +83,7 @@ private:
     std::array<u8, 4> MakeFillBuffer(PAddr copy_addr);
 
 public:
-    bool registered = false;
-    bool is_custom = false;
+    SurfaceFlagBits flags{};
     const Material* material = nullptr;
     SurfaceRegions invalid_regions;
     u32 fill_size = 0;

src/video_core/rasterizer_cache/surface_params.cpp

@@ -15,14 +15,23 @@ bool SurfaceParams::ExactMatch(const SurfaceParams& other_surface) const {
 }
 
 bool SurfaceParams::CanSubRect(const SurfaceParams& sub_surface) const {
+    const u32 level = LevelOf(sub_surface.addr);
     return sub_surface.addr >= addr && sub_surface.end <= end &&
            sub_surface.pixel_format == pixel_format && pixel_format != PixelFormat::Invalid &&
            sub_surface.is_tiled == is_tiled &&
-           (sub_surface.addr - addr) % BytesInPixels(is_tiled ? 64 : 1) == 0 &&
-           (sub_surface.stride == stride || sub_surface.height <= (is_tiled ? 8u : 1u)) &&
+           (sub_surface.addr - mipmap_offsets[level]) % BytesInPixels(is_tiled ? 64 : 1) == 0 &&
+           (sub_surface.stride == (stride >> level) ||
+            sub_surface.height <= (is_tiled ? 8u : 1u)) &&
            GetSubRect(sub_surface).right <= stride;
 }
 
+bool SurfaceParams::CanReinterpret(const SurfaceParams& other_surface) {
+    return other_surface.addr >= addr && other_surface.end <= end &&
+           pixel_format != PixelFormat::Invalid && GetFormatBpp() == other_surface.GetFormatBpp() &&
+           other_surface.is_tiled == is_tiled &&
+           (other_surface.addr - addr) % BytesInPixels(is_tiled ? 64 : 1) == 0;
+}
+
 bool SurfaceParams::CanExpand(const SurfaceParams& expanded_surface) const {
     return pixel_format != PixelFormat::Invalid && pixel_format == expanded_surface.pixel_format &&
            addr <= expanded_surface.end && expanded_surface.addr <= end &&
@@ -206,7 +215,9 @@ SurfaceInterval SurfaceParams::LevelInterval(u32 level) const {
 }
 
 u32 SurfaceParams::LevelOf(PAddr level_addr) const {
-    ASSERT(level_addr >= addr && level_addr <= end);
+    if (level_addr < addr || level_addr > end) {
+        return 0;
+    }
 
     u32 level = levels - 1;
     while (mipmap_offsets[level] > level_addr) {

src/video_core/rasterizer_cache/surface_params.h

@@ -4,11 +4,15 @@
 
 #pragma once
 
+#include <boost/icl/right_open_interval.hpp>
+#include "common/math_util.h"
 #include "video_core/custom_textures/custom_format.h"
-#include "video_core/rasterizer_cache/utils.h"
+#include "video_core/rasterizer_cache/pixel_format.h"
 
 namespace VideoCore {
 
+using SurfaceInterval = boost::icl::right_open_interval<PAddr>;
+
 constexpr std::size_t MAX_PICA_LEVELS = 8;
 
 class SurfaceParams {
@@ -19,6 +23,9 @@ public:
     /// Returns true if sub_surface is a subrect of params
     bool CanSubRect(const SurfaceParams& sub_surface) const;
 
+    /// Returns true if other_surface can be used for reinterpretion.
+    bool CanReinterpret(const SurfaceParams& other_surface);
+
     /// Returns true if params can be expanded to match expanded_surface
     bool CanExpand(const SurfaceParams& expanded_surface) const;
 

src/video_core/rasterizer_cache/utils.h

@@ -4,28 +4,31 @@
 
 #pragma once
 
-#include <compare>
 #include <span>
-#include <boost/icl/right_open_interval.hpp>
 #include "common/hash.h"
 #include "common/math_util.h"
+#include "common/slot_vector.h"
 #include "common/vector_math.h"
-#include "video_core/rasterizer_cache/pixel_format.h"
+#include "video_core/regs_texturing.h"
 
 namespace VideoCore {
 
-using SurfaceInterval = boost::icl::right_open_interval<PAddr>;
+using SurfaceId = Common::SlotId;
+using SamplerId = Common::SlotId;
+
+/// Fake surface ID for null surfaces
+constexpr SurfaceId NULL_SURFACE_ID{0};
+/// Fake surface ID for null cube surfaces
+constexpr SurfaceId NULL_SURFACE_CUBE_ID{1};
+/// Fake sampler ID for null samplers
+constexpr SamplerId NULL_SAMPLER_ID{0};
 
 struct Offset {
-    constexpr auto operator<=>(const Offset&) const noexcept = default;
-
     u32 x = 0;
     u32 y = 0;
 };
 
 struct Extent {
-    constexpr auto operator<=>(const Extent&) const noexcept = default;
-
     u32 width = 1;
     u32 height = 1;
 };
@@ -71,9 +74,9 @@ struct BufferTextureCopy {
 };
 
 struct StagingData {
-    u32 size = 0;
-    std::span<u8> mapped{};
-    u64 buffer_offset = 0;
+    u32 size;
+    std::span<u8> mapped;
+    u64 buffer_offset;
 };
 
 struct TextureCubeConfig {

src/video_core/renderer_opengl/gl_blit_helper.cpp

@@ -2,12 +2,16 @@
 // Licensed under GPLv2 or any later version
 // Refer to the license.txt file included.
 
+#include "common/scope_exit.h"
 #include "common/settings.h"
 #include "video_core/rasterizer_cache/pixel_format.h"
 #include "video_core/renderer_opengl/gl_blit_helper.h"
+#include "video_core/renderer_opengl/gl_driver.h"
 #include "video_core/renderer_opengl/gl_state.h"
 #include "video_core/renderer_opengl/gl_texture_runtime.h"
 
+#include "video_core/host_shaders/format_reinterpreter/d24s8_to_rgba8_frag.h"
+#include "video_core/host_shaders/format_reinterpreter/rgba4_to_rgb5a1_frag.h"
 #include "video_core/host_shaders/full_screen_triangle_vert.h"
 #include "video_core/host_shaders/texture_filtering/bicubic_frag.h"
 #include "video_core/host_shaders/texture_filtering/nearest_neighbor_frag.h"
@@ -49,8 +53,8 @@ OGLProgram CreateProgram(std::string_view frag) {
 
 } // Anonymous namespace
 
-BlitHelper::BlitHelper(TextureRuntime& runtime_)
-    : runtime{runtime_}, linear_sampler{CreateSampler(GL_LINEAR)},
+BlitHelper::BlitHelper(const Driver& driver_)
+    : driver{driver_}, linear_sampler{CreateSampler(GL_LINEAR)},
       nearest_sampler{CreateSampler(GL_NEAREST)}, bicubic_program{CreateProgram(
                                                       HostShaders::BICUBIC_FRAG)},
       nearest_program{CreateProgram(HostShaders::NEAREST_NEIGHBOR_FRAG)},
@@ -58,34 +62,104 @@ BlitHelper::BlitHelper(TextureRuntime& runtime_)
       xbrz_program{CreateProgram(HostShaders::XBRZ_FREESCALE_FRAG)},
       gradient_x_program{CreateProgram(HostShaders::X_GRADIENT_FRAG)},
       gradient_y_program{CreateProgram(HostShaders::Y_GRADIENT_FRAG)},
-      refine_program{CreateProgram(HostShaders::REFINE_FRAG)} {
+      refine_program{CreateProgram(HostShaders::REFINE_FRAG)},
+      d24s8_to_rgba8{CreateProgram(HostShaders::D24S8_TO_RGBA8_FRAG)},
+      rgba4_to_rgb5a1{CreateProgram(HostShaders::RGBA4_TO_RGB5A1_FRAG)} {
     vao.Create();
-    filter_fbo.Create();
+    draw_fbo.Create();
     state.draw.vertex_array = vao.handle;
     for (u32 i = 0; i < 3; i++) {
         state.texture_units[i].sampler = i == 2 ? nearest_sampler.handle : linear_sampler.handle;
     }
+    if (driver.IsOpenGLES()) {
+        LOG_INFO(Render_OpenGL,
+                 "Texture views are unsupported, reinterpretation will do intermediate copy");
+        temp_tex.Create();
+        use_texture_view = false;
+    }
 }
 
 BlitHelper::~BlitHelper() = default;
 
+bool BlitHelper::ConvertDS24S8ToRGBA8(Surface& source, Surface& dest,
+                                      const VideoCore::TextureBlit& blit) {
+    OpenGLState prev_state = OpenGLState::GetCurState();
+    SCOPE_EXIT({ prev_state.Apply(); });
+
+    state.texture_units[0].texture_2d = source.Handle();
+    state.texture_units[0].sampler = 0;
+    state.texture_units[1].sampler = 0;
+
+    if (use_texture_view) {
+        temp_tex.Create();
+        glActiveTexture(GL_TEXTURE1);
+        glTextureView(temp_tex.handle, GL_TEXTURE_2D, source.Handle(), GL_DEPTH24_STENCIL8, 0, 1, 0,
+                      1);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+    } else if (blit.src_rect.top > temp_rect.top || blit.src_rect.right > temp_rect.right) {
+        temp_tex.Release();
+        temp_tex.Create();
+        state.texture_units[1].texture_2d = temp_tex.handle;
+        state.Apply();
+        glActiveTexture(GL_TEXTURE1);
+        glTexStorage2D(GL_TEXTURE_2D, 1, GL_DEPTH24_STENCIL8, blit.src_rect.right,
+                       blit.src_rect.top);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
+        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
+        temp_rect = blit.src_rect;
+    }
+    state.texture_units[1].texture_2d = temp_tex.handle;
+    state.Apply();
+
+    glActiveTexture(GL_TEXTURE1);
+    if (!use_texture_view) {
+        glCopyImageSubData(source.Handle(), GL_TEXTURE_2D, 0, blit.src_rect.left,
+                           blit.src_rect.bottom, 0, temp_tex.handle, GL_TEXTURE_2D, 0,
+                           blit.src_rect.left, blit.src_rect.bottom, 0, blit.src_rect.GetWidth(),
+                           blit.src_rect.GetHeight(), 1);
+    }
+    glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_STENCIL_INDEX);
+
+    SetParams(d24s8_to_rgba8, source.RealExtent(), blit.src_rect);
+    Draw(d24s8_to_rgba8, dest.Handle(), draw_fbo.handle, 0, blit.dst_rect);
+
+    if (use_texture_view) {
+        temp_tex.Release();
+    }
+
+    // Restore the sampler handles
+    state.texture_units[0].sampler = linear_sampler.handle;
+    state.texture_units[1].sampler = linear_sampler.handle;
+
+    return true;
+}
+
+bool BlitHelper::ConvertRGBA4ToRGB5A1(Surface& source, Surface& dest,
+                                      const VideoCore::TextureBlit& blit) {
+    OpenGLState prev_state = OpenGLState::GetCurState();
+    SCOPE_EXIT({ prev_state.Apply(); });
+
+    state.texture_units[0].texture_2d = source.Handle();
+
+    SetParams(rgba4_to_rgb5a1, source.RealExtent(), blit.src_rect);
+    Draw(rgba4_to_rgb5a1, dest.Handle(), draw_fbo.handle, 0, blit.dst_rect);
+
+    return true;
+}
+
 bool BlitHelper::Filter(Surface& surface, const VideoCore::TextureBlit& blit) {
-    // Filtering to depth stencil surfaces isn't supported.
-    if (surface.type == SurfaceType::Depth || surface.type == SurfaceType::DepthStencil) {
+    const auto filter = Settings::values.texture_filter.GetValue();
+    const bool is_depth =
+        surface.type == SurfaceType::Depth || surface.type == SurfaceType::DepthStencil;
+    if (filter == Settings::TextureFilter::None || is_depth) {
         return false;
     }
-    // Avoid filtering for mipmaps as the result often looks terrible.
     if (blit.src_level != 0) {
         return true;
     }
 
-    const OpenGLState prev_state = OpenGLState::GetCurState();
-    state.texture_units[0].texture_2d = surface.Handle(0);
-
-    const auto filter{Settings::values.texture_filter.GetValue()};
     switch (filter) {
-    case TextureFilter::None:
-        break;
     case TextureFilter::Anime4K:
         FilterAnime4K(surface, blit);
         break;
@@ -101,15 +175,19 @@ bool BlitHelper::Filter(Surface& surface, const VideoCore::TextureBlit& blit) {
     case TextureFilter::xBRZ:
         FilterXbrz(surface, blit);
         break;
+    default:
+        LOG_ERROR(Render_OpenGL, "Unknown texture filter {}", filter);
     }
 
-    prev_state.Apply();
     return true;
 }
 
 void BlitHelper::FilterAnime4K(Surface& surface, const VideoCore::TextureBlit& blit) {
     static constexpr u8 internal_scale_factor = 2;
 
+    const OpenGLState prev_state = OpenGLState::GetCurState();
+    SCOPE_EXIT({ prev_state.Apply(); });
+
     const auto& tuple = surface.Tuple();
     const u32 src_width = blit.src_rect.GetWidth();
     const u32 src_height = blit.src_rect.GetHeight();
@@ -149,7 +227,7 @@ void BlitHelper::FilterAnime4K(Surface& surface, const VideoCore::TextureBlit& b
     Draw(gradient_y_program, LUMAD.tex.handle, LUMAD.fbo.handle, 0, temp_rect);
 
     // refine pass
-    Draw(refine_program, surface.Handle(), filter_fbo.handle, blit.dst_level, blit.dst_rect);
+    Draw(refine_program, surface.Handle(), draw_fbo.handle, blit.dst_level, blit.dst_rect);
 
     // These will have handles from the previous texture that was filtered, reset them to avoid
     // binding invalid textures.
@@ -160,25 +238,36 @@ void BlitHelper::FilterAnime4K(Surface& surface, const VideoCore::TextureBlit& b
 }
 
 void BlitHelper::FilterBicubic(Surface& surface, const VideoCore::TextureBlit& blit) {
-    SetParams(bicubic_program, surface.Extent(), blit.src_rect);
-    Draw(bicubic_program, surface.Handle(), filter_fbo.handle, blit.dst_level, blit.dst_rect);
+    const OpenGLState prev_state = OpenGLState::GetCurState();
+    SCOPE_EXIT({ prev_state.Apply(); });
+    state.texture_units[0].texture_2d = surface.Handle(0);
+    SetParams(bicubic_program, surface.RealExtent(false), blit.src_rect);
+    Draw(bicubic_program, surface.Handle(), draw_fbo.handle, blit.dst_level, blit.dst_rect);
 }
 
 void BlitHelper::FilterNearest(Surface& surface, const VideoCore::TextureBlit& blit) {
+    const OpenGLState prev_state = OpenGLState::GetCurState();
+    SCOPE_EXIT({ prev_state.Apply(); });
     state.texture_units[2].texture_2d = surface.Handle(0);
-    SetParams(nearest_program, surface.Extent(), blit.src_rect);
-    Draw(nearest_program, surface.Handle(), filter_fbo.handle, blit.dst_level, blit.dst_rect);
+    SetParams(nearest_program, surface.RealExtent(false), blit.src_rect);
+    Draw(nearest_program, surface.Handle(), draw_fbo.handle, blit.dst_level, blit.dst_rect);
 }
 
 void BlitHelper::FilterScaleForce(Surface& surface, const VideoCore::TextureBlit& blit) {
-    SetParams(scale_force_program, surface.Extent(), blit.src_rect);
-    Draw(scale_force_program, surface.Handle(), filter_fbo.handle, blit.dst_level, blit.dst_rect);
+    const OpenGLState prev_state = OpenGLState::GetCurState();
+    SCOPE_EXIT({ prev_state.Apply(); });
+    state.texture_units[0].texture_2d = surface.Handle(0);
+    SetParams(scale_force_program, surface.RealExtent(false), blit.src_rect);
+    Draw(scale_force_program, surface.Handle(), draw_fbo.handle, blit.dst_level, blit.dst_rect);
 }
 
 void BlitHelper::FilterXbrz(Surface& surface, const VideoCore::TextureBlit& blit) {
+    const OpenGLState prev_state = OpenGLState::GetCurState();
+    SCOPE_EXIT({ prev_state.Apply(); });
+    state.texture_units[0].texture_2d = surface.Handle(0);
     glProgramUniform1f(xbrz_program.handle, 2, static_cast<GLfloat>(surface.res_scale));
-    SetParams(xbrz_program, surface.Extent(), blit.src_rect);
-    Draw(xbrz_program, surface.Handle(), filter_fbo.handle, blit.dst_level, blit.dst_rect);
+    SetParams(xbrz_program, surface.RealExtent(false), blit.src_rect);
+    Draw(xbrz_program, surface.Handle(), draw_fbo.handle, blit.dst_level, blit.dst_rect);
 }
 
 void BlitHelper::SetParams(OGLProgram& program, const VideoCore::Extent& src_extent,
@@ -206,7 +295,7 @@ void BlitHelper::Draw(OGLProgram& program, GLuint dst_tex, GLuint dst_fbo, u32 d
                            dst_level);
     glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
 
-    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
+    glDrawArrays(GL_TRIANGLES, 0, 3);
 }
 
 } // namespace OpenGL

src/video_core/renderer_opengl/gl_blit_helper.h

@@ -15,16 +15,20 @@ struct TextureBlit;
 
 namespace OpenGL {
 
-class TextureRuntime;
+class Driver;
 class Surface;
 
 class BlitHelper {
 public:
-    BlitHelper(TextureRuntime& runtime);
+    explicit BlitHelper(const Driver& driver);
     ~BlitHelper();
 
     bool Filter(Surface& surface, const VideoCore::TextureBlit& blit);
 
+    bool ConvertDS24S8ToRGBA8(Surface& source, Surface& dest, const VideoCore::TextureBlit& blit);
+
+    bool ConvertRGBA4ToRGB5A1(Surface& source, Surface& dest, const VideoCore::TextureBlit& blit);
+
 private:
     void FilterAnime4K(Surface& surface, const VideoCore::TextureBlit& blit);
 
@@ -43,10 +47,10 @@ private:
               Common::Rectangle<u32> dst_rect);
 
 private:
-    TextureRuntime& runtime;
+    const Driver& driver;
     OGLVertexArray vao;
     OpenGLState state;
-    OGLFramebuffer filter_fbo;
+    OGLFramebuffer draw_fbo;
     OGLSampler linear_sampler;
     OGLSampler nearest_sampler;
 
@@ -57,6 +61,12 @@ private:
     OGLProgram gradient_x_program;
     OGLProgram gradient_y_program;
     OGLProgram refine_program;
+    OGLProgram d24s8_to_rgba8;
+    OGLProgram rgba4_to_rgb5a1;
+
+    OGLTexture temp_tex;
+    Common::Rectangle<u32> temp_rect{};
+    bool use_texture_view{true};
 };
 
 } // namespace OpenGL

src/video_core/renderer_opengl/gl_format_reinterpreter.cpp

@@ -1,134 +0,0 @@
-// Copyright 2022 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#include "common/scope_exit.h"
-#include "video_core/renderer_opengl/gl_format_reinterpreter.h"
-#include "video_core/renderer_opengl/gl_state.h"
-#include "video_core/renderer_opengl/gl_texture_runtime.h"
-
-#include "video_core/host_shaders/format_reinterpreter/d24s8_to_rgba8_frag.h"
-#include "video_core/host_shaders/format_reinterpreter/fullscreen_quad_vert.h"
-#include "video_core/host_shaders/format_reinterpreter/rgba4_to_rgb5a1_frag.h"
-
-namespace OpenGL {
-
-RGBA4toRGB5A1::RGBA4toRGB5A1() {
-    program.Create(HostShaders::FULLSCREEN_QUAD_VERT, HostShaders::RGBA4_TO_RGB5A1_FRAG);
-    dst_size_loc = glGetUniformLocation(program.handle, "dst_size");
-    src_size_loc = glGetUniformLocation(program.handle, "src_size");
-    src_offset_loc = glGetUniformLocation(program.handle, "src_offset");
-    vao.Create();
-}
-
-void RGBA4toRGB5A1::Reinterpret(Surface& source, Common::Rectangle<u32> src_rect, Surface& dest,
-                                Common::Rectangle<u32> dst_rect) {
-    OpenGLState prev_state = OpenGLState::GetCurState();
-    SCOPE_EXIT({ prev_state.Apply(); });
-
-    OpenGLState state;
-    state.texture_units[0].texture_2d = source.Handle();
-    state.draw.draw_framebuffer = draw_fbo.handle;
-    state.draw.shader_program = program.handle;
-    state.draw.vertex_array = vao.handle;
-    state.viewport = {static_cast<GLint>(dst_rect.left), static_cast<GLint>(dst_rect.bottom),
-                      static_cast<GLsizei>(dst_rect.GetWidth()),
-                      static_cast<GLsizei>(dst_rect.GetHeight())};
-    state.Apply();
-
-    glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, dest.Handle(),
-                           0);
-    glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
-
-    glUniform2i(dst_size_loc, dst_rect.GetWidth(), dst_rect.GetHeight());
-    glUniform2i(src_size_loc, src_rect.GetWidth(), src_rect.GetHeight());
-    glUniform2i(src_offset_loc, src_rect.left, src_rect.bottom);
-    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-}
-
-ShaderD24S8toRGBA8::ShaderD24S8toRGBA8() {
-    program.Create(HostShaders::FULLSCREEN_QUAD_VERT, HostShaders::D24S8_TO_RGBA8_FRAG);
-    dst_size_loc = glGetUniformLocation(program.handle, "dst_size");
-    src_size_loc = glGetUniformLocation(program.handle, "src_size");
-    src_offset_loc = glGetUniformLocation(program.handle, "src_offset");
-    vao.Create();
-
-    auto state = OpenGLState::GetCurState();
-    auto cur_program = state.draw.shader_program;
-    state.draw.shader_program = program.handle;
-    state.Apply();
-    glUniform1i(glGetUniformLocation(program.handle, "stencil"), 1);
-    state.draw.shader_program = cur_program;
-    state.Apply();
-
-    // Nvidia seem to be the only one to support D24S8 views, at least on windows
-    // so for everyone else it will do an intermediate copy before running through the shader
-    std::string_view vendor{reinterpret_cast<const char*>(glGetString(GL_VENDOR))};
-    if (vendor.find("NVIDIA") != vendor.npos) {
-        use_texture_view = true;
-    } else {
-        LOG_INFO(Render_OpenGL,
-                 "Texture views are unsupported, reinterpretation will do intermediate copy");
-        temp_tex.Create();
-    }
-}
-
-void ShaderD24S8toRGBA8::Reinterpret(Surface& source, Common::Rectangle<u32> src_rect,
-                                     Surface& dest, Common::Rectangle<u32> dst_rect) {
-    OpenGLState prev_state = OpenGLState::GetCurState();
-    SCOPE_EXIT({ prev_state.Apply(); });
-
-    OpenGLState state;
-    state.texture_units[0].texture_2d = source.Handle();
-
-    if (use_texture_view) {
-        temp_tex.Create();
-        glActiveTexture(GL_TEXTURE1);
-        glTextureView(temp_tex.handle, GL_TEXTURE_2D, source.Handle(), GL_DEPTH24_STENCIL8, 0, 1, 0,
-                      1);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-    } else if (src_rect.top > temp_rect.top || src_rect.right > temp_rect.right) {
-        temp_tex.Release();
-        temp_tex.Create();
-        state.texture_units[1].texture_2d = temp_tex.handle;
-        state.Apply();
-        glActiveTexture(GL_TEXTURE1);
-        glTexStorage2D(GL_TEXTURE_2D, 1, GL_DEPTH24_STENCIL8, src_rect.right, src_rect.top);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_NEAREST);
-        glTexParameteri(GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_NEAREST);
-        temp_rect = src_rect;
-    }
-
-    state.texture_units[1].texture_2d = temp_tex.handle;
-    state.draw.draw_framebuffer = draw_fbo.handle;
-    state.draw.shader_program = program.handle;
-    state.draw.vertex_array = vao.handle;
-    state.viewport = {static_cast<GLint>(dst_rect.left), static_cast<GLint>(dst_rect.bottom),
-                      static_cast<GLsizei>(dst_rect.GetWidth()),
-                      static_cast<GLsizei>(dst_rect.GetHeight())};
-    state.Apply();
-
-    glActiveTexture(GL_TEXTURE1);
-    if (!use_texture_view) {
-        glCopyImageSubData(source.Handle(), GL_TEXTURE_2D, 0, src_rect.left, src_rect.bottom, 0,
-                           temp_tex.handle, GL_TEXTURE_2D, 0, src_rect.left, src_rect.bottom, 0,
-                           src_rect.GetWidth(), src_rect.GetHeight(), 1);
-    }
-    glTexParameteri(GL_TEXTURE_2D, GL_DEPTH_STENCIL_TEXTURE_MODE, GL_STENCIL_INDEX);
-
-    glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, dest.Handle(),
-                           0);
-    glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
-
-    glUniform2i(dst_size_loc, dst_rect.GetWidth(), dst_rect.GetHeight());
-    glUniform2i(src_size_loc, src_rect.GetWidth(), src_rect.GetHeight());
-    glUniform2i(src_offset_loc, src_rect.left, src_rect.bottom);
-    glDrawArrays(GL_TRIANGLE_STRIP, 0, 4);
-
-    if (use_texture_view) {
-        temp_tex.Release();
-    }
-}
-
-} // namespace OpenGL

src/video_core/renderer_opengl/gl_format_reinterpreter.h

@@ -1,76 +0,0 @@
-// Copyright 2022 Citra Emulator Project
-// Licensed under GPLv2 or any later version
-// Refer to the license.txt file included.
-
-#pragma once
-
-#include "common/math_util.h"
-#include "video_core/rasterizer_cache/pixel_format.h"
-#include "video_core/renderer_opengl/gl_resource_manager.h"
-
-namespace OpenGL {
-
-class Surface;
-
-class FormatReinterpreterBase {
-public:
-    FormatReinterpreterBase() {
-        read_fbo.Create();
-        draw_fbo.Create();
-    }
-
-    virtual ~FormatReinterpreterBase() = default;
-
-    virtual VideoCore::PixelFormat GetSourceFormat() const = 0;
-    virtual void Reinterpret(Surface& source, Common::Rectangle<u32> src_rect, Surface& dest,
-                             Common::Rectangle<u32> dst_rect) = 0;
-
-protected:
-    OGLFramebuffer read_fbo;
-    OGLFramebuffer draw_fbo;
-};
-
-using ReinterpreterList = std::vector<std::unique_ptr<FormatReinterpreterBase>>;
-
-class RGBA4toRGB5A1 final : public FormatReinterpreterBase {
-public:
-    RGBA4toRGB5A1();
-
-    VideoCore::PixelFormat GetSourceFormat() const override {
-        return VideoCore::PixelFormat::RGBA4;
-    }
-
-    void Reinterpret(Surface& source, Common::Rectangle<u32> src_rect, Surface& dest,
-                     Common::Rectangle<u32> dst_rect) override;
-
-private:
-    OGLProgram program;
-    GLint dst_size_loc{-1};
-    GLint src_size_loc{-1};
-    GLint src_offset_loc{-1};
-    OGLVertexArray vao;
-};
-
-class ShaderD24S8toRGBA8 final : public FormatReinterpreterBase {
-public:
-    ShaderD24S8toRGBA8();
-
-    VideoCore::PixelFormat GetSourceFormat() const override {
-        return VideoCore::PixelFormat::D24S8;
-    }
-
-    void Reinterpret(Surface& source, Common::Rectangle<u32> src_rect, Surface& dest,
-                     Common::Rectangle<u32> dst_rect) override;
-
-private:
-    bool use_texture_view{};
-    OGLProgram program{};
-    GLint dst_size_loc{-1};
-    GLint src_size_loc{-1};
-    GLint src_offset_loc{-1};
-    OGLVertexArray vao{};
-    OGLTexture temp_tex{};
-    Common::Rectangle<u32> temp_rect{0, 0, 0, 0};
-};
-
-} // namespace OpenGL

src/video_core/renderer_opengl/gl_rasterizer.cpp

@@ -25,7 +25,7 @@ MICROPROFILE_DEFINE(OpenGL_VAO, "OpenGL", "Vertex Array Setup", MP_RGB(255, 128,
 MICROPROFILE_DEFINE(OpenGL_VS, "OpenGL", "Vertex Shader Setup", MP_RGB(192, 128, 128));
 MICROPROFILE_DEFINE(OpenGL_GS, "OpenGL", "Geometry Shader Setup", MP_RGB(128, 192, 128));
 MICROPROFILE_DEFINE(OpenGL_Drawing, "OpenGL", "Drawing", MP_RGB(128, 128, 192));
-MICROPROFILE_DEFINE(OpenGL_CacheManagement, "OpenGL", "Cache Mgmt", MP_RGB(100, 255, 100));
+MICROPROFILE_DEFINE(OpenGL_Display, "OpenGL", "Display", MP_RGB(128, 128, 192));
 
 using VideoCore::SurfaceType;
 
@@ -97,16 +97,6 @@ RasterizerOpenGL::RasterizerOpenGL(Memory::MemorySystem& memory,
     u8 framebuffer_data[4] = {0, 0, 0, 1};
     glTexImage2D(GL_TEXTURE_2D, 0, GL_RGBA, 1, 1, 0, GL_RGBA, GL_UNSIGNED_BYTE, framebuffer_data);
 
-    // Create sampler objects
-    for (std::size_t i = 0; i < texture_samplers.size(); ++i) {
-        texture_samplers[i].Create();
-        state.texture_units[i].sampler = texture_samplers[i].sampler.handle;
-    }
-
-    // Create cubemap texture and sampler objects
-    texture_cube_sampler.Create();
-    state.texture_cube_unit.sampler = texture_cube_sampler.sampler.handle;
-
     // Generate VAO
     sw_vao.Create();
     hw_vao.Create();
@@ -251,14 +241,14 @@ void RasterizerOpenGL::SetupVertexArray(u8* array_ptr, GLintptr buffer_offset,
             }
         }
 
-        PAddr data_addr =
+        const PAddr data_addr =
             base_address + loader.data_offset + (vs_input_index_min * loader.byte_count);
 
-        u32 vertex_num = vs_input_index_max - vs_input_index_min + 1;
-        u32 data_size = loader.byte_count * vertex_num;
+        const u32 vertex_num = vs_input_index_max - vs_input_index_min + 1;
+        const u32 data_size = loader.byte_count * vertex_num;
 
-        res_cache.FlushRegion(data_addr, data_size, nullptr);
-        std::memcpy(array_ptr, VideoCore::g_memory->GetPhysicalPointer(data_addr), data_size);
+        res_cache.FlushRegion(data_addr, data_size);
+        std::memcpy(array_ptr, memory.GetPhysicalPointer(data_addr), data_size);
 
         array_ptr += data_size;
         buffer_offset += data_size;
@@ -287,8 +277,7 @@ void RasterizerOpenGL::SetupVertexArray(u8* array_ptr, GLintptr buffer_offset,
 
 bool RasterizerOpenGL::SetupVertexShader() {
     MICROPROFILE_SCOPE(OpenGL_VS);
-    return shader_program_manager->UseProgrammableVertexShader(Pica::g_state.regs,
-                                                               Pica::g_state.vs);
+    return shader_program_manager->UseProgrammableVertexShader(regs, Pica::g_state.vs);
 }
 
 bool RasterizerOpenGL::SetupGeometryShader() {
@@ -400,8 +389,7 @@ bool RasterizerOpenGL::Draw(bool accelerate, bool is_indexed) {
     const Framebuffer framebuffer =
         res_cache.GetFramebufferSurfaces(using_color_fb, using_depth_fb);
     const bool has_color = framebuffer.HasAttachment(SurfaceType::Color);
-    const bool has_depth_stencil = framebuffer.HasAttachment(SurfaceType::DepthStencil);
-    if (!has_color && (shadow_rendering || !has_depth_stencil)) {
+    if (!has_color && shadow_rendering) {
         return true;
     }
 
@@ -520,8 +508,9 @@ void RasterizerOpenGL::SyncTextureUnits(const Framebuffer& framebuffer) {
         if (texture_index == 0) {
             switch (texture.config.type.Value()) {
             case TextureType::Shadow2D: {
-                auto surface = res_cache.GetTextureSurface(texture);
-                state.image_shadow_texture_px = surface->Handle();
+                Surface& surface = res_cache.GetTextureSurface(texture);
+                surface.flags |= VideoCore::SurfaceFlagBits::ShadowMap;
+                state.image_shadow_texture_px = surface.Handle();
                 continue;
             }
             case TextureType::ShadowCube: {
@@ -538,22 +527,14 @@ void RasterizerOpenGL::SyncTextureUnits(const Framebuffer& framebuffer) {
         }
 
         // Sync texture unit sampler
-        texture_samplers[texture_index].SyncWithConfig(texture.config);
+        Sampler& sampler = res_cache.GetSampler(texture.config);
+        state.texture_units[texture_index].sampler = sampler.Handle();
 
         // Bind the texture provided by the rasterizer cache
-        auto surface = res_cache.GetTextureSurface(texture);
-        if (!surface) {
-            // Can occur when texture addr is null or its memory is unmapped/invalid
-            // HACK: In this case, the correct behaviour for the PICA is to use the last
-            // rendered colour. But because this would be impractical to implement, the
-            // next best alternative is to use a clear texture, essentially skipping
-            // the geometry in question.
-            // For example: a bug in Pokemon X/Y causes NULL-texture squares to be drawn
-            // on the male character's face, which in the OpenGL default appear black.
-            state.texture_units[texture_index].texture_2d = default_texture;
-        } else if (!IsFeedbackLoop(texture_index, framebuffer, *surface)) {
-            BindMaterial(texture_index, *surface);
-            state.texture_units[texture_index].texture_2d = surface->Handle();
+        Surface& surface = res_cache.GetTextureSurface(texture);
+        if (!IsFeedbackLoop(texture_index, framebuffer, surface)) {
+            BindMaterial(texture_index, surface);
+            state.texture_units[texture_index].texture_2d = surface.Handle();
         }
     }
 }
@@ -570,8 +551,10 @@ void RasterizerOpenGL::BindShadowCube(const Pica::TexturingRegs::FullTextureConf
         const u32 binding = static_cast<u32>(face);
         info.physical_address = regs.texturing.GetCubePhysicalAddress(face);
 
-        auto surface = res_cache.GetTextureSurface(info);
-        state.image_shadow_texture[binding] = surface->Handle();
+        VideoCore::SurfaceId surface_id = res_cache.GetTextureSurface(info);
+        Surface& surface = res_cache.GetSurface(surface_id);
+        surface.flags |= VideoCore::SurfaceFlagBits::ShadowMap;
+        state.image_shadow_texture[binding] = surface.Handle();
     }
 }
 
@@ -589,10 +572,11 @@ void RasterizerOpenGL::BindTextureCube(const Pica::TexturingRegs::FullTextureCon
         .format = texture.format,
     };
 
-    auto surface = res_cache.GetTextureCube(config);
-    texture_cube_sampler.SyncWithConfig(texture.config);
+    Surface& surface = res_cache.GetTextureCube(config);
+    Sampler& sampler = res_cache.GetSampler(texture.config);
 
-    state.texture_cube_unit.texture_cube = surface->Handle();
+    state.texture_cube_unit.texture_cube = surface.Handle();
+    state.texture_cube_unit.sampler = sampler.Handle();
     state.texture_units[0].texture_2d = 0;
 }
 
@@ -608,7 +592,7 @@ void RasterizerOpenGL::BindMaterial(u32 texture_index, Surface& surface) {
         glBindSampler(unit.id, sampler);
     };
 
-    const GLuint sampler = texture_samplers[texture_index].sampler.handle;
+    const GLuint sampler = state.texture_units[texture_index].sampler;
     if (surface.HasNormalMap()) {
         if (regs.lighting.disable) {
             LOG_WARNING(Render_OpenGL, "Custom normal map used but scene has no light enabled");
@@ -726,24 +710,20 @@ void RasterizerOpenGL::NotifyFixedFunctionPicaRegisterChanged(u32 id) {
 }
 
 void RasterizerOpenGL::FlushAll() {
-    MICROPROFILE_SCOPE(OpenGL_CacheManagement);
     res_cache.FlushAll();
 }
 
 void RasterizerOpenGL::FlushRegion(PAddr addr, u32 size) {
-    MICROPROFILE_SCOPE(OpenGL_CacheManagement);
     res_cache.FlushRegion(addr, size);
 }
 
 void RasterizerOpenGL::InvalidateRegion(PAddr addr, u32 size) {
-    MICROPROFILE_SCOPE(OpenGL_CacheManagement);
-    res_cache.InvalidateRegion(addr, size, nullptr);
+    res_cache.InvalidateRegion(addr, size);
 }
 
 void RasterizerOpenGL::FlushAndInvalidateRegion(PAddr addr, u32 size) {
-    MICROPROFILE_SCOPE(OpenGL_CacheManagement);
     res_cache.FlushRegion(addr, size);
-    res_cache.InvalidateRegion(addr, size, nullptr);
+    res_cache.InvalidateRegion(addr, size);
 }
 
 void RasterizerOpenGL::ClearAll(bool flush) {
@@ -768,7 +748,7 @@ bool RasterizerOpenGL::AccelerateDisplay(const GPU::Regs::FramebufferConfig& con
     if (framebuffer_addr == 0) {
         return false;
     }
-    MICROPROFILE_SCOPE(OpenGL_CacheManagement);
+    MICROPROFILE_SCOPE(OpenGL_Display);
 
     VideoCore::SurfaceParams src_params;
     src_params.addr = framebuffer_addr;
@@ -779,85 +759,27 @@ bool RasterizerOpenGL::AccelerateDisplay(const GPU::Regs::FramebufferConfig& con
     src_params.pixel_format = VideoCore::PixelFormatFromGPUPixelFormat(config.color_format);
     src_params.UpdateParams();
 
-    auto [src_surface, src_rect] =
+    const auto [src_surface_id, src_rect] =
         res_cache.GetSurfaceSubRect(src_params, VideoCore::ScaleMatch::Ignore, true);
-
-    if (src_surface == nullptr) {
+    if (!src_surface_id) {
         return false;
     }
 
-    const u32 scaled_width = src_surface->GetScaledWidth();
-    const u32 scaled_height = src_surface->GetScaledHeight();
+    const Surface& src_surface = res_cache.GetSurface(src_surface_id);
+    const u32 scaled_width = src_surface.GetScaledWidth();
+    const u32 scaled_height = src_surface.GetScaledHeight();
 
     screen_info.display_texcoords = Common::Rectangle<float>(
         (float)src_rect.bottom / (float)scaled_height, (float)src_rect.left / (float)scaled_width,
         (float)src_rect.top / (float)scaled_height, (float)src_rect.right / (float)scaled_width);
 
-    screen_info.display_texture = src_surface->Handle();
+    screen_info.display_texture = src_surface.Handle();
 
     return true;
 }
 
-void RasterizerOpenGL::SamplerInfo::Create() {
-    sampler.Create();
-    mag_filter = min_filter = mip_filter = TextureConfig::Linear;
-    wrap_s = wrap_t = TextureConfig::Repeat;
-    border_color = 0;
-    lod_min = lod_max = 0;
-
-    // default is 1000 and -1000
-    // Other attributes have correct defaults
-    glSamplerParameterf(sampler.handle, GL_TEXTURE_MAX_LOD, static_cast<float>(lod_max));
-    glSamplerParameterf(sampler.handle, GL_TEXTURE_MIN_LOD, static_cast<float>(lod_min));
-}
-
-void RasterizerOpenGL::SamplerInfo::SyncWithConfig(
-    const Pica::TexturingRegs::TextureConfig& config) {
-
-    GLuint s = sampler.handle;
-
-    if (mag_filter != config.mag_filter) {
-        mag_filter = config.mag_filter;
-        glSamplerParameteri(s, GL_TEXTURE_MAG_FILTER, PicaToGL::TextureMagFilterMode(mag_filter));
-    }
-
-    if (min_filter != config.min_filter || mip_filter != config.mip_filter) {
-        min_filter = config.min_filter;
-        mip_filter = config.mip_filter;
-        glSamplerParameteri(s, GL_TEXTURE_MIN_FILTER,
-                            PicaToGL::TextureMinFilterMode(min_filter, mip_filter));
-    }
-
-    if (wrap_s != config.wrap_s) {
-        wrap_s = config.wrap_s;
-        glSamplerParameteri(s, GL_TEXTURE_WRAP_S, PicaToGL::WrapMode(wrap_s));
-    }
-    if (wrap_t != config.wrap_t) {
-        wrap_t = config.wrap_t;
-        glSamplerParameteri(s, GL_TEXTURE_WRAP_T, PicaToGL::WrapMode(wrap_t));
-    }
-
-    if (wrap_s == TextureConfig::ClampToBorder || wrap_t == TextureConfig::ClampToBorder) {
-        if (border_color != config.border_color.raw) {
-            border_color = config.border_color.raw;
-            auto gl_color = PicaToGL::ColorRGBA8(border_color);
-            glSamplerParameterfv(s, GL_TEXTURE_BORDER_COLOR, gl_color.AsArray());
-        }
-    }
-
-    if (lod_min != config.lod.min_level) {
-        lod_min = config.lod.min_level;
-        glSamplerParameterf(s, GL_TEXTURE_MIN_LOD, static_cast<float>(lod_min));
-    }
-
-    if (lod_max != config.lod.max_level) {
-        lod_max = config.lod.max_level;
-        glSamplerParameterf(s, GL_TEXTURE_MAX_LOD, static_cast<float>(lod_max));
-    }
-}
-
 void RasterizerOpenGL::SyncClipEnabled() {
-    state.clip_distance[1] = Pica::g_state.regs.rasterizer.clip_enable != 0;
+    state.clip_distance[1] = regs.rasterizer.clip_enable != 0;
 }
 
 void RasterizerOpenGL::SyncCullMode() {
@@ -885,7 +807,7 @@ void RasterizerOpenGL::SyncCullMode() {
 }
 
 void RasterizerOpenGL::SyncBlendEnabled() {
-    state.blend.enabled = (Pica::g_state.regs.framebuffer.output_merger.alphablend_enable == 1);
+    state.blend.enabled = (regs.framebuffer.output_merger.alphablend_enable == 1);
 }
 
 void RasterizerOpenGL::SyncBlendFuncs() {
@@ -904,8 +826,7 @@ void RasterizerOpenGL::SyncBlendFuncs() {
 }
 
 void RasterizerOpenGL::SyncBlendColor() {
-    auto blend_color =
-        PicaToGL::ColorRGBA8(Pica::g_state.regs.framebuffer.output_merger.blend_const.raw);
+    auto blend_color = PicaToGL::ColorRGBA8(regs.framebuffer.output_merger.blend_const.raw);
     state.blend.color.red = blend_color[0];
     state.blend.color.green = blend_color[1];
     state.blend.color.blue = blend_color[2];

src/video_core/renderer_opengl/gl_rasterizer.h

@@ -55,28 +55,6 @@ private:
     void SyncFixedState() override;
     void NotifyFixedFunctionPicaRegisterChanged(u32 id) override;
 
-    struct SamplerInfo {
-        using TextureConfig = Pica::TexturingRegs::TextureConfig;
-
-        OGLSampler sampler;
-
-        /// Creates the sampler object, initializing its state so that it's in sync with the
-        /// SamplerInfo struct.
-        void Create();
-        /// Syncs the sampler object with the config, updating any necessary state.
-        void SyncWithConfig(const TextureConfig& config);
-
-    private:
-        TextureConfig::TextureFilter mag_filter;
-        TextureConfig::TextureFilter min_filter;
-        TextureConfig::TextureFilter mip_filter;
-        TextureConfig::WrapMode wrap_s;
-        TextureConfig::WrapMode wrap_t;
-        u32 border_color;
-        u32 lod_min;
-        u32 lod_max;
-    };
-
     /// Syncs the clip enabled status to match the PICA register
     void SyncClipEnabled();
 
@@ -156,14 +134,13 @@ private:
     OpenGLState state;
     GLuint default_texture;
     TextureRuntime runtime;
-    VideoCore::RasterizerCache res_cache;
+    RasterizerCache res_cache;
     std::unique_ptr<ShaderProgramManager> shader_program_manager;
 
     OGLVertexArray sw_vao; // VAO for software shader draw
     OGLVertexArray hw_vao; // VAO for hardware shader / accelerate draw
     std::array<bool, 16> hw_vao_enabled_attributes{};
 
-    std::array<SamplerInfo, 3> texture_samplers;
     GLsizeiptr texture_buffer_size;
     OGLStreamBuffer vertex_buffer;
     OGLStreamBuffer uniform_buffer;
@@ -175,8 +152,6 @@ private:
     std::size_t uniform_size_aligned_vs;
     std::size_t uniform_size_aligned_fs;
 
-    SamplerInfo texture_cube_sampler;
-
     OGLTexture texture_buffer_lut_lf;
     OGLTexture texture_buffer_lut_rg;
     OGLTexture texture_buffer_lut_rgba;

src/video_core/renderer_opengl/gl_rasterizer_cache.cpp

@@ -0,0 +1,10 @@
+// Copyright 2023 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#include "video_core/rasterizer_cache/rasterizer_cache.h"
+#include "video_core/renderer_opengl/gl_texture_runtime.h"
+
+namespace VideoCore {
+template class RasterizerCache<OpenGL::Traits>;
+} // namespace VideoCore

src/video_core/renderer_opengl/gl_texture_runtime.cpp

@@ -9,6 +9,7 @@
 #include "video_core/renderer_opengl/gl_driver.h"
 #include "video_core/renderer_opengl/gl_state.h"
 #include "video_core/renderer_opengl/gl_texture_runtime.h"
+#include "video_core/renderer_opengl/pica_to_gl.h"
 
 namespace OpenGL {
 
@@ -16,6 +17,7 @@ namespace {
 
 using VideoCore::MapType;
 using VideoCore::PixelFormat;
+using VideoCore::SurfaceFlagBits;
 using VideoCore::SurfaceType;
 using VideoCore::TextureType;
 
@@ -116,20 +118,11 @@ struct FramebufferInfo {
 } // Anonymous namespace
 
 TextureRuntime::TextureRuntime(const Driver& driver_, VideoCore::RendererBase& renderer)
-    : driver{driver_}, blit_helper{*this} {
+    : driver{driver_}, blit_helper{driver} {
     for (std::size_t i = 0; i < draw_fbos.size(); ++i) {
         draw_fbos[i].Create();
         read_fbos[i].Create();
     }
-
-    auto add_reinterpreter = [this](PixelFormat dest,
-                                    std::unique_ptr<FormatReinterpreterBase>&& obj) {
-        const u32 dst_index = static_cast<u32>(dest);
-        return reinterpreters[dst_index].push_back(std::move(obj));
-    };
-
-    add_reinterpreter(PixelFormat::RGBA8, std::make_unique<ShaderD24S8toRGBA8>());
-    add_reinterpreter(PixelFormat::RGB5A1, std::make_unique<RGBA4toRGB5A1>());
 }
 
 TextureRuntime::~TextureRuntime() = default;
@@ -241,14 +234,30 @@ Allocation TextureRuntime::Allocate(const VideoCore::SurfaceParams& params,
         .height = params.height,
         .levels = params.levels,
         .res_scale = params.res_scale,
+        .is_custom = is_custom,
     };
 }
 
-bool TextureRuntime::ClearTexture(Surface& surface, const VideoCore::TextureClear& clear) {
-    const auto prev_state = OpenGLState::GetCurState();
+bool TextureRuntime::Reinterpret(Surface& source, Surface& dest,
+                                 const VideoCore::TextureBlit& blit) {
+    const PixelFormat src_format = source.pixel_format;
+    const PixelFormat dst_format = dest.pixel_format;
+    ASSERT_MSG(src_format != dst_format, "Reinterpretation with the same format is invalid");
+    if (src_format == PixelFormat::D24S8 && dst_format == PixelFormat::RGBA8) {
+        blit_helper.ConvertDS24S8ToRGBA8(source, dest, blit);
+    } else if (src_format == PixelFormat::RGBA4 && dst_format == PixelFormat::RGB5A1) {
+        blit_helper.ConvertRGBA4ToRGB5A1(source, dest, blit);
+    } else {
+        LOG_WARNING(Render_OpenGL, "Unimplemented reinterpretation {} -> {}",
+                    VideoCore::PixelFormatAsString(src_format),
+                    VideoCore::PixelFormatAsString(dst_format));
+        return false;
+    }
+    return true;
+}
 
-    // Setup scissor rectangle according to the clear rectangle
-    OpenGLState state;
+bool TextureRuntime::ClearTexture(Surface& surface, const VideoCore::TextureClear& clear) {
+    OpenGLState state = OpenGLState::GetCurState();
     state.scissor.enabled = true;
     state.scissor.x = clear.texture_rect.left;
     state.scissor.y = clear.texture_rect.bottom;
@@ -257,42 +266,27 @@ bool TextureRuntime::ClearTexture(Surface& surface, const VideoCore::TextureClea
     state.draw.draw_framebuffer = draw_fbos[FboIndex(surface.type)].handle;
     state.Apply();
 
+    surface.Attach(GL_DRAW_FRAMEBUFFER, clear.texture_level, 0);
+
     switch (surface.type) {
     case SurfaceType::Color:
     case SurfaceType::Texture:
-        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D,
-                               surface.Handle(), clear.texture_level);
-        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0,
-                               0);
-
         state.color_mask.red_enabled = true;
         state.color_mask.green_enabled = true;
         state.color_mask.blue_enabled = true;
         state.color_mask.alpha_enabled = true;
         state.Apply();
-
         glClearBufferfv(GL_COLOR, 0, clear.value.color.AsArray());
         break;
     case SurfaceType::Depth:
-        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
-        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_ATTACHMENT, GL_TEXTURE_2D,
-                               surface.Handle(), clear.texture_level);
-        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_STENCIL_ATTACHMENT, GL_TEXTURE_2D, 0, 0);
-
         state.depth.write_mask = GL_TRUE;
         state.Apply();
-
         glClearBufferfv(GL_DEPTH, 0, &clear.value.depth);
         break;
     case SurfaceType::DepthStencil:
-        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_COLOR_ATTACHMENT0, GL_TEXTURE_2D, 0, 0);
-        glFramebufferTexture2D(GL_DRAW_FRAMEBUFFER, GL_DEPTH_STENCIL_ATTACHMENT, GL_TEXTURE_2D,
-                               surface.Handle(), clear.texture_level);
-
         state.depth.write_mask = GL_TRUE;
         state.stencil.write_mask = -1;
         state.Apply();
-
         glClearBufferfi(GL_DEPTH_STENCIL, 0, clear.value.depth, clear.value.stencil);
         break;
     default:
@@ -300,7 +294,6 @@ bool TextureRuntime::ClearTexture(Surface& surface, const VideoCore::TextureClea
         return false;
     }
 
-    prev_state.Apply();
     return true;
 }
 
@@ -329,13 +322,12 @@ bool TextureRuntime::BlitTextures(Surface& source, Surface& dest,
     source.Attach(GL_READ_FRAMEBUFFER, blit.src_level, blit.src_layer);
     dest.Attach(GL_DRAW_FRAMEBUFFER, blit.dst_level, blit.dst_layer);
 
-    // TODO (wwylele): use GL_NEAREST for shadow map texture
     // Note: shadow map is treated as RGBA8 format in PICA, as well as in the rasterizer cache, but
-    // doing linear intepolation componentwise would cause incorrect value. However, for a
-    // well-programmed game this code path should be rarely executed for shadow map with
-    // inconsistent scale.
+    // doing linear intepolation componentwise would cause incorrect value.
     const GLbitfield buffer_mask = MakeBufferMask(source.type);
-    const GLenum filter = buffer_mask == GL_COLOR_BUFFER_BIT ? GL_LINEAR : GL_NEAREST;
+    const bool is_shadow_map = True(source.flags & SurfaceFlagBits::ShadowMap);
+    const GLenum filter =
+        buffer_mask == GL_COLOR_BUFFER_BIT && !is_shadow_map ? GL_LINEAR : GL_NEAREST;
     glBlitFramebuffer(blit.src_rect.left, blit.src_rect.bottom, blit.src_rect.right,
                       blit.src_rect.top, blit.dst_rect.left, blit.dst_rect.bottom,
                       blit.dst_rect.right, blit.dst_rect.top, buffer_mask, filter);
@@ -359,11 +351,6 @@ void TextureRuntime::GenerateMipmaps(Surface& surface) {
     }
 }
 
-const ReinterpreterList& TextureRuntime::GetPossibleReinterpretations(
-    PixelFormat dest_format) const {
-    return reinterpreters[static_cast<u32>(dest_format)];
-}
-
 Surface::Surface(TextureRuntime& runtime_, const VideoCore::SurfaceParams& params)
     : SurfaceBase{params}, driver{&runtime_.GetDriver()}, runtime{&runtime_} {
     if (pixel_format == PixelFormat::Invalid) {
@@ -422,15 +409,19 @@ void Surface::UploadCustom(const VideoCore::Material* material, u32 level) {
     glActiveTexture(GL_TEXTURE0);
     glPixelStorei(GL_UNPACK_ROW_LENGTH, width);
 
-    glBindTexture(GL_TEXTURE_2D, Handle(0));
-    if (VideoCore::IsCustomFormatCompressed(custom_format)) {
-        const GLsizei image_size = static_cast<GLsizei>(color->data.size());
-        glCompressedTexSubImage2D(GL_TEXTURE_2D, level, 0, 0, width, height, tuple.format,
-                                  image_size, color->data.data());
-    } else {
-        glTexSubImage2D(GL_TEXTURE_2D, level, 0, 0, width, height, tuple.format, tuple.type,
-                        color->data.data());
-    }
+    const auto upload = [&](u32 index, VideoCore::CustomTexture* texture) {
+        glBindTexture(GL_TEXTURE_2D, Handle(index));
+        if (VideoCore::IsCustomFormatCompressed(custom_format)) {
+            const GLsizei image_size = static_cast<GLsizei>(texture->data.size());
+            glCompressedTexSubImage2D(GL_TEXTURE_2D, level, 0, 0, width, height, tuple.format,
+                                      image_size, texture->data.data());
+        } else {
+            glTexSubImage2D(GL_TEXTURE_2D, level, 0, 0, width, height, tuple.format, tuple.type,
+                            texture->data.data());
+        }
+    };
+
+    upload(0, color);
 
     const VideoCore::TextureBlit blit = {
         .src_rect = filter_rect,
@@ -444,15 +435,7 @@ void Surface::UploadCustom(const VideoCore::Material* material, u32 level) {
         if (!texture) {
             continue;
         }
-        glBindTexture(GL_TEXTURE_2D, Handle(i + 1));
-        if (VideoCore::IsCustomFormatCompressed(custom_format)) {
-            const GLsizei image_size = static_cast<GLsizei>(texture->data.size());
-            glCompressedTexSubImage2D(GL_TEXTURE_2D, level, 0, 0, width, height, tuple.format,
-                                      image_size, texture->data.data());
-        } else {
-            glTexSubImage2D(GL_TEXTURE_2D, level, 0, 0, width, height, tuple.format, tuple.type,
-                            texture->data.data());
-        }
+        upload(i + 1, texture);
     }
 
     glPixelStorei(GL_UNPACK_ROW_LENGTH, 0);
@@ -572,7 +555,6 @@ bool Surface::Swap(const VideoCore::Material* mat) {
               GetScaledWidth(), GetScaledHeight(), VideoCore::PixelFormatAsString(pixel_format),
               addr, width, height, VideoCore::CustomPixelFormatAsString(format));
 
-    is_custom = true;
     custom_format = format;
     material = mat;
 
@@ -614,13 +596,13 @@ HostTextureTag Surface::MakeTag() const noexcept {
         .res_scale = alloc.res_scale,
         .tuple = alloc.tuple,
         .type = texture_type,
-        .is_custom = is_custom,
+        .is_custom = alloc.is_custom,
         .has_normal = HasNormalMap(),
     };
 }
 
-Framebuffer::Framebuffer(TextureRuntime& runtime, Surface* const color, u32 color_level,
-                         Surface* const depth_stencil, u32 depth_level, const Pica::Regs& regs,
+Framebuffer::Framebuffer(TextureRuntime& runtime, const Surface* color, u32 color_level,
+                         const Surface* depth_stencil, u32 depth_level, const Pica::Regs& regs,
                          Common::Rectangle<u32> surfaces_rect)
     : VideoCore::FramebufferBase{regs,          color,       color_level,
                                  depth_stencil, depth_level, surfaces_rect} {
@@ -692,4 +674,30 @@ Framebuffer::Framebuffer(TextureRuntime& runtime, Surface* const color, u32 colo
 
 Framebuffer::~Framebuffer() = default;
 
+Sampler::Sampler(TextureRuntime&, VideoCore::SamplerParams params) {
+    const GLenum mag_filter = PicaToGL::TextureMagFilterMode(params.mag_filter);
+    const GLenum min_filter = PicaToGL::TextureMinFilterMode(params.min_filter, params.mip_filter);
+    const GLenum wrap_s = PicaToGL::WrapMode(params.wrap_s);
+    const GLenum wrap_t = PicaToGL::WrapMode(params.wrap_t);
+    const Common::Vec4f gl_color = PicaToGL::ColorRGBA8(params.border_color);
+    const float lod_min = params.lod_min;
+    const float lod_max = params.lod_max;
+
+    sampler.Create();
+
+    const GLuint handle = sampler.handle;
+    glSamplerParameteri(handle, GL_TEXTURE_MAG_FILTER, mag_filter);
+    glSamplerParameteri(handle, GL_TEXTURE_MIN_FILTER, min_filter);
+
+    glSamplerParameteri(handle, GL_TEXTURE_WRAP_S, wrap_s);
+    glSamplerParameteri(handle, GL_TEXTURE_WRAP_T, wrap_t);
+
+    glSamplerParameterfv(handle, GL_TEXTURE_BORDER_COLOR, gl_color.AsArray());
+
+    glSamplerParameterf(handle, GL_TEXTURE_MIN_LOD, lod_min);
+    glSamplerParameterf(handle, GL_TEXTURE_MAX_LOD, lod_max);
+}
+
+Sampler::~Sampler() = default;
+
 } // namespace OpenGL

src/video_core/renderer_opengl/gl_texture_runtime.h

@@ -5,9 +5,8 @@
 #pragma once
 
 #include "video_core/rasterizer_cache/framebuffer_base.h"
-#include "video_core/rasterizer_cache/surface_base.h"
+#include "video_core/rasterizer_cache/rasterizer_cache_base.h"
 #include "video_core/renderer_opengl/gl_blit_helper.h"
-#include "video_core/renderer_opengl/gl_format_reinterpreter.h"
 
 namespace VideoCore {
 struct Material;
@@ -60,6 +59,7 @@ struct Allocation {
     u32 height;
     u32 levels;
     u32 res_scale;
+    bool is_custom;
 
     operator bool() const noexcept {
         return textures[0].handle;
@@ -76,7 +76,6 @@ class Driver;
 class TextureRuntime {
     friend class Surface;
     friend class Framebuffer;
-    friend class BlitHelper;
 
 public:
     explicit TextureRuntime(const Driver& driver, VideoCore::RendererBase& renderer);
@@ -95,12 +94,8 @@ public:
     const FormatTuple& GetFormatTuple(VideoCore::PixelFormat pixel_format) const;
     const FormatTuple& GetFormatTuple(VideoCore::CustomPixelFormat pixel_format);
 
-    /// Takes back ownership of the allocation for recycling
-    void Recycle(const HostTextureTag tag, Allocation&& alloc);
-
-    /// Allocates a texture with the specified dimentions and format
-    Allocation Allocate(const VideoCore::SurfaceParams& params,
-                        const VideoCore::Material* material = nullptr);
+    /// Attempts to reinterpret a rectangle of source to another rectangle of dest
+    bool Reinterpret(Surface& source, Surface& dest, const VideoCore::TextureBlit& blit);
 
     /// Fills the rectangle of the texture with the clear value provided
     bool ClearTexture(Surface& surface, const VideoCore::TextureClear& clear);
@@ -114,10 +109,14 @@ public:
     /// Generates mipmaps for all the available levels of the texture
     void GenerateMipmaps(Surface& surface);
 
-    /// Returns all source formats that support reinterpretation to the dest format
-    const ReinterpreterList& GetPossibleReinterpretations(VideoCore::PixelFormat dest_format) const;
-
 private:
+    /// Takes back ownership of the allocation for recycling
+    void Recycle(const HostTextureTag tag, Allocation&& alloc);
+
+    /// Allocates a texture with the specified dimentions and format
+    Allocation Allocate(const VideoCore::SurfaceParams& params,
+                        const VideoCore::Material* material = nullptr);
+
     /// Returns the OpenGL driver class
     const Driver& GetDriver() const {
         return driver;
@@ -127,7 +126,6 @@ private:
     const Driver& driver;
     BlitHelper blit_helper;
     std::vector<u8> staging_buffer;
-    std::array<ReinterpreterList, VideoCore::PIXEL_FORMAT_COUNT> reinterpreters;
     std::unordered_multimap<HostTextureTag, Allocation, HostTextureTag::Hash> alloc_cache;
     std::unordered_map<u64, OGLFramebuffer, Common::IdentityHash<u64>> framebuffer_cache;
     std::array<OGLFramebuffer, 3> draw_fbos;
@@ -145,24 +143,14 @@ public:
     Surface(Surface&& o) noexcept = default;
     Surface& operator=(Surface&& o) noexcept = default;
 
-    /// Returns the surface image handle at the provided index.
-    GLuint Handle(u32 index = 1) const noexcept {
+    [[nodiscard]] GLuint Handle(u32 index = 1) const noexcept {
         return alloc.handles[index];
     }
 
-    /// Returns the tuple of the surface allocation.
-    const FormatTuple& Tuple() const noexcept {
+    [[nodiscard]] const FormatTuple& Tuple() const noexcept {
         return alloc.tuple;
     }
 
-    /// Returns the extent of the underlying surface allocation
-    VideoCore::Extent Extent() const noexcept {
-        return {
-            .width = alloc.width,
-            .height = alloc.height,
-        };
-    }
-
     /// Uploads pixel data in staging to a rectangle region of the surface texture
     void Upload(const VideoCore::BufferTextureCopy& upload, const VideoCore::StagingData& staging);
 
@@ -201,8 +189,8 @@ private:
 
 class Framebuffer : public VideoCore::FramebufferBase {
 public:
-    explicit Framebuffer(TextureRuntime& runtime, Surface* const color, u32 color_level,
-                         Surface* const depth_stencil, u32 depth_level, const Pica::Regs& regs,
+    explicit Framebuffer(TextureRuntime& runtime, const Surface* color, u32 color_level,
+                         const Surface* depth_stencil, u32 depth_level, const Pica::Regs& regs,
                          Common::Rectangle<u32> surfaces_rect);
     ~Framebuffer();
 
@@ -223,4 +211,32 @@ private:
     GLuint handle{};
 };
 
+class Sampler {
+public:
+    explicit Sampler(TextureRuntime&, VideoCore::SamplerParams params);
+    ~Sampler();
+
+    Sampler(const Sampler&) = delete;
+    Sampler& operator=(const Sampler&) = delete;
+
+    Sampler(Sampler&&) = default;
+    Sampler& operator=(Sampler&&) = default;
+
+    [[nodiscard]] GLuint Handle() const noexcept {
+        return sampler.handle;
+    }
+
+private:
+    OGLSampler sampler;
+};
+
+struct Traits {
+    using Runtime = OpenGL::TextureRuntime;
+    using Sampler = OpenGL::Sampler;
+    using Surface = OpenGL::Surface;
+    using Framebuffer = OpenGL::Framebuffer;
+};
+
+using RasterizerCache = VideoCore::RasterizerCache<Traits>;
+
 } // namespace OpenGL