VideoBackends: Add AbstractShader and AbstractPipeline classes

Source/Core/VideoBackends/OGL/OGLPipeline.h

@@ -0,0 +1,43 @@
+// Copyright 2017 Dolphin Emulator Project
+// Licensed under GPLv2+
+// Refer to the license.txt file included.
+
+#pragma once
+
+#include <memory>
+
+#include "Common/GL/GLUtil.h"
+#include "VideoBackends/OGL/ProgramShaderCache.h"
+#include "VideoCommon/AbstractPipeline.h"
+#include "VideoCommon/RenderState.h"
+
+namespace OGL
+{
+class OGLPipeline final : public AbstractPipeline
+{
+public:
+  explicit OGLPipeline(const GLVertexFormat* vertex_format,
+                       const RasterizationState& rasterization_state, const DepthState& depth_state,
+                       const BlendingState& blending_state, const PipelineProgram* program,
+                       GLenum gl_primitive);
+  ~OGLPipeline() override;
+
+  const GLVertexFormat* GetVertexFormat() const { return m_vertex_format; }
+  const RasterizationState& GetRasterizationState() const { return m_rasterization_state; }
+  const DepthState& GetDepthState() const { return m_depth_state; }
+  const BlendingState& GetBlendingState() const { return m_blending_state; }
+  const PipelineProgram* GetProgram() const { return m_program; }
+  bool HasVertexInput() const { return m_vertex_format != nullptr; }
+  GLenum GetGLPrimitive() const { return m_gl_primitive; }
+  static std::unique_ptr<OGLPipeline> Create(const AbstractPipelineConfig& config);
+
+private:
+  const GLVertexFormat* m_vertex_format;
+  RasterizationState m_rasterization_state;
+  DepthState m_depth_state;
+  BlendingState m_blending_state;
+  const PipelineProgram* m_program;
+  GLenum m_gl_primitive;
+};
+
+}  // namespace OGL