GPU: Base work for hardware renderer

src/pse/gpu_hw.h

@@ -0,0 +1,28 @@
+#pragma once
+#include "gpu.h"
+#include <string>
+#include <vector>
+
+class GPU_HW : public GPU
+{
+public:
+  GPU_HW();
+  virtual ~GPU_HW();
+
+protected:
+  struct HWVertex
+  {
+    s32 x;
+    s32 y;
+    u32 color;
+    u32 texcoord;
+  };
+
+  void LoadVertices(RenderCommand rc, u32 num_vertices);
+
+  std::string GenerateVertexShader(bool textured);
+  std::string GenerateFragmentShader(bool textured);
+
+  std::vector<HWVertex> m_vertex_staging;
+};
+