1 files changed, 105 insertions, 0 deletions
diff --git a/src/video_core/renderer_opengl/gl_graphics_program.h b/src/video_core/renderer_opengl/gl_graphics_program.h
new file mode 100644
index 000000000..5adf3f41e
--- /dev/null
+++ b/src/video_core/renderer_opengl/gl_graphics_program.h
@@ -0,0 +1,105 @@
+// Copyright 2021 yuzu Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <array>
+#include <type_traits>
+#include <utility>
+
+#include "common/bit_field.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"
+
+namespace OpenGL {
+
+class ProgramManager;
+
+using Maxwell = Tegra::Engines::Maxwell3D::Regs;
+
+struct GraphicsProgramKey {
+    struct TransformFeedbackState {
+        struct Layout {
+            u32 stream;
+            u32 varying_count;
+            u32 stride;
+        };
+        std::array<Layout, Maxwell::NumTransformFeedbackBuffers> layouts;
+        std::array<std::array<u8, 128>, Maxwell::NumTransformFeedbackBuffers> varyings;
+    };
+
+    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;
+    TransformFeedbackState xfb_state;
+
+    size_t Hash() const noexcept;
+
+    bool operator==(const GraphicsProgramKey&) const noexcept;
+
+    bool operator!=(const GraphicsProgramKey& rhs) const noexcept {
+        return !operator==(rhs);
+    }
+
+    [[nodiscard]] size_t Size() const noexcept {
+        if (xfb_enabled != 0) {
+            return sizeof(GraphicsProgramKey);
+        } else {
+            return offsetof(GraphicsProgramKey, padding);
+        }
+    }
+};
+static_assert(std::has_unique_object_representations_v<GraphicsProgramKey>);
+static_assert(std::is_trivially_copyable_v<GraphicsProgramKey>);
+static_assert(std::is_trivially_constructible_v<GraphicsProgramKey>);
+
+class GraphicsProgram {
+public:
+    explicit GraphicsProgram(TextureCache& texture_cache_, BufferCache& buffer_cache_,
+                             Tegra::MemoryManager& gpu_memory_,
+                             Tegra::Engines::Maxwell3D& maxwell3d_,
+                             ProgramManager& program_manager_, StateTracker& state_tracker_,
+                             OGLProgram program_, const std::array<const Shader::Info*, 5>& infos);
+
+    void Configure(bool is_indexed);
+
+private:
+    TextureCache& texture_cache;
+    BufferCache& buffer_cache;
+    Tegra::MemoryManager& gpu_memory;
+    Tegra::Engines::Maxwell3D& maxwell3d;
+    ProgramManager& program_manager;
+    StateTracker& state_tracker;
+
+    OGLProgram program;
+    std::array<Shader::Info, 5> stage_infos{};
+    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{};
+};
+
+} // namespace OpenGL
+
+namespace std {
+template <>
+struct hash<OpenGL::GraphicsProgramKey> {
+    size_t operator()(const OpenGL::GraphicsProgramKey& k) const noexcept {
+        return k.Hash();
+    }
+};
+} // namespace std