video_core: Refactor GPU interface (#7272)

* video_core: Refactor GPU interface

* citra_qt: Better debug widget lifetime

src/video_core/pica/output_vertex.h

@@ -0,0 +1,48 @@
+// Copyright 2023 Citra Emulator Project
+// Licensed under GPLv2 or any later version
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include "common/vector_math.h"
+#include "video_core/pica_types.h"
+
+namespace Pica {
+
+struct RasterizerRegs;
+
+using AttributeBuffer = std::array<Common::Vec4<f24>, 16>;
+
+struct OutputVertex {
+    OutputVertex() = default;
+    explicit OutputVertex(const RasterizerRegs& regs, const AttributeBuffer& output);
+
+    Common::Vec4<f24> pos;
+    Common::Vec4<f24> quat;
+    Common::Vec4<f24> color;
+    Common::Vec2<f24> tc0;
+    Common::Vec2<f24> tc1;
+    f24 tc0_w;
+    INSERT_PADDING_WORDS(1);
+    Common::Vec3<f24> view;
+    INSERT_PADDING_WORDS(1);
+    Common::Vec2<f24> tc2;
+
+private:
+    template <class Archive>
+    void serialize(Archive& ar, const u32) {
+        ar& pos;
+        ar& quat;
+        ar& color;
+        ar& tc0;
+        ar& tc1;
+        ar& tc0_w;
+        ar& view;
+        ar& tc2;
+    }
+    friend class boost::serialization::access;
+};
+static_assert(std::is_trivial_v<OutputVertex>, "Structure is not POD");
+static_assert(sizeof(OutputVertex) == 24 * sizeof(f32), "OutputVertex has invalid size");
+
+} // namespace Pica