1 files changed, 169 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/gl_graphics_pipeline.h b/src/video_core/renderer_opengl/gl_graphics_pipeline.h
new file mode 100644
index 000000000..4e28d9a42
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_graphics_pipeline.h
@@ -0,0 +1,169 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <cstring>
+#include <type_traits>
+#include <utility>
+
+#include "common/bit_field.h"
+#include "common/cityhash.h"
+#include "common/common_types.h"
+#include "shader_recompiler/shader_info.h"
+#include "video_core/engines/maxwell_3d.h"
+#include "video_core/memory_manager.h"
+#include "video_core/renderer_opengl/gl_buffer_cache.h"
+#include "video_core/renderer_opengl/gl_resource_manager.h"
+#include "video_core/renderer_opengl/gl_texture_cache.h"
+#include "video_core/transform_feedback.h"
+
+namespace OpenGL {
+
+namespace ShaderContext {
+struct Context;
+}
+
+class Device;
+class ProgramManager;
+
+using Maxwell = Tegra::Engines::Maxwell3D::Regs;
+using ShaderWorker = Common::StatefulThreadWorker<ShaderContext::Context>;
+
+struct GraphicsPipelineKey {
+    std::array<u64, 6> unique_hashes;
+    union {
+        u32 raw;
+        BitField<0, 1, u32> xfb_enabled;
+        BitField<1, 1, u32> early_z;
+        BitField<2, 4, Maxwell::PrimitiveTopology> gs_input_topology;
+        BitField<6, 2, Maxwell::TessellationPrimitive> tessellation_primitive;
+        BitField<8, 2, Maxwell::TessellationSpacing> tessellation_spacing;
+        BitField<10, 1, u32> tessellation_clockwise;
+    };
+    std::array<u32, 3> padding;
+    VideoCommon::TransformFeedbackState xfb_state;
+
+    size_t Hash() const noexcept {
+        return static_cast<size_t>(Common::CityHash64(reinterpret_cast<const char*>(this), Size()));
+    }
+
+    bool operator==(const GraphicsPipelineKey& rhs) const noexcept {
+        return std::memcmp(this, &rhs, Size()) == 0;
+    }
+
+    bool operator!=(const GraphicsPipelineKey& rhs) const noexcept {
+        return !operator==(rhs);
+    }
+
+    [[nodiscard]] size_t Size() const noexcept {
+        if (xfb_enabled != 0) {
+            return sizeof(GraphicsPipelineKey);
+        } else {
+            return offsetof(GraphicsPipelineKey, padding);
+        }
+    }
+};
+static_assert(std::has_unique_object_representations_v<GraphicsPipelineKey>);
+static_assert(std::is_trivially_copyable_v<GraphicsPipelineKey>);
+static_assert(std::is_trivially_constructible_v<GraphicsPipelineKey>);
+
+class GraphicsPipeline {
+public:
+    explicit GraphicsPipeline(const Device& device, TextureCache& texture_cache_,
+                              BufferCache& buffer_cache_, Tegra::MemoryManager& gpu_memory_,
+                              Tegra::Engines::Maxwell3D& maxwell3d_,
+                              ProgramManager& program_manager_, StateTracker& state_tracker_,
+                              ShaderWorker* thread_worker, VideoCore::ShaderNotify* shader_notify,
+                              std::array<std::string, 5> sources,
+                              std::array<std::vector<u32>, 5> sources_spirv,
+                              const std::array<const Shader::Info*, 5>& infos,
+                              const GraphicsPipelineKey& key_);
+
+    void Configure(bool is_indexed) {
+        configure_func(this, is_indexed);
+    }
+
+    void ConfigureTransformFeedback() const {
+        if (num_xfb_attribs != 0) {
+            ConfigureTransformFeedbackImpl();
+        }
+    }
+
+    [[nodiscard]] const GraphicsPipelineKey& Key() const noexcept {
+        return key;
+    }
+
+    [[nodiscard]] bool WritesGlobalMemory() const noexcept {
+        return writes_global_memory;
+    }
+
+    [[nodiscard]] bool IsBuilt() const noexcept {
+        return is_built.load(std::memory_order::relaxed);
+    }
+
+    template <typename Spec>
+    static auto MakeConfigureSpecFunc() {
+        return [](GraphicsPipeline* pipeline, bool is_indexed) {
+            pipeline->ConfigureImpl<Spec>(is_indexed);
+        };
+    }
+
+private:
+    template <typename Spec>
+    void ConfigureImpl(bool is_indexed);
+
+    void ConfigureTransformFeedbackImpl() const;
+
+    void GenerateTransformFeedbackState();
+
+    void WaitForBuild();
+
+    TextureCache& texture_cache;
+    BufferCache& buffer_cache;
+    Tegra::MemoryManager& gpu_memory;
+    Tegra::Engines::Maxwell3D& maxwell3d;
+    ProgramManager& program_manager;
+    StateTracker& state_tracker;
+    const GraphicsPipelineKey key;
+
+    void (*configure_func)(GraphicsPipeline*, bool){};
+
+    std::array<OGLProgram, 5> source_programs;
+    std::array<OGLAssemblyProgram, 5> assembly_programs;
+    u32 enabled_stages_mask{};
+
+    std::array<Shader::Info, 5> stage_infos{};
+    std::array<u32, 5> enabled_uniform_buffer_masks{};
+    VideoCommon::UniformBufferSizes uniform_buffer_sizes{};
+    std::array<u32, 5> base_uniform_bindings{};
+    std::array<u32, 5> base_storage_bindings{};
+    std::array<u32, 5> num_texture_buffers{};
+    std::array<u32, 5> num_image_buffers{};
+
+    bool use_storage_buffers{};
+    bool writes_global_memory{};
+
+    static constexpr std::size_t XFB_ENTRY_STRIDE = 3;
+    GLsizei num_xfb_attribs{};
+    GLsizei num_xfb_strides{};
+    std::array<GLint, 128 * XFB_ENTRY_STRIDE * Maxwell::NumTransformFeedbackBuffers> xfb_attribs{};
+    std::array<GLint, Maxwell::NumTransformFeedbackBuffers> xfb_streams{};
+
+    std::mutex built_mutex;
+    std::condition_variable built_condvar;
+    std::atomic_bool is_built{false};
+};
+
+} // namespace OpenGL
+
+namespace std {
+template <>
+struct hash<OpenGL::GraphicsPipelineKey> {
+    size_t operator()(const OpenGL::GraphicsPipelineKey& k) const noexcept {
+        return k.Hash();
+    }
+};
+} // namespace std