VideoBackends: Add AbstractShader and AbstractPipeline classes

Source/Core/VideoBackends/Software/SWRenderer.cpp

@@ -16,6 +16,8 @@
 #include "VideoBackends/Software/SWOGLWindow.h"
 #include "VideoBackends/Software/SWTexture.h"
 
+#include "VideoCommon/AbstractPipeline.h"
+#include "VideoCommon/AbstractShader.h"
 #include "VideoCommon/BoundingBox.h"
 #include "VideoCommon/OnScreenDisplay.h"
 #include "VideoCommon/VideoBackendBase.h"
@@ -42,6 +44,40 @@ void SWRenderer::RenderText(const std::string& pstr, int left, int top, u32 colo
   SWOGLWindow::s_instance->PrintText(pstr, left, top, color);
 }
 
+class SWShader final : public AbstractShader
+{
+public:
+  explicit SWShader(ShaderStage stage) : AbstractShader(stage) {}
+  ~SWShader() = default;
+
+  bool HasBinary() const override { return false; }
+  BinaryData GetBinary() const override { return {}; }
+};
+
+std::unique_ptr<AbstractShader>
+SWRenderer::CreateShaderFromSource(ShaderStage stage, const char* source, size_t length)
+{
+  return std::make_unique<SWShader>(stage);
+}
+
+std::unique_ptr<AbstractShader> SWRenderer::CreateShaderFromBinary(ShaderStage stage,
+                                                                   const void* data, size_t length)
+{
+  return std::make_unique<SWShader>(stage);
+}
+
+class SWPipeline final : public AbstractPipeline
+{
+public:
+  SWPipeline() : AbstractPipeline() {}
+  ~SWPipeline() override = default;
+};
+
+std::unique_ptr<AbstractPipeline> SWRenderer::CreatePipeline(const AbstractPipelineConfig& config)
+{
+  return std::make_unique<SWPipeline>();
+}
+
 // Called on the GPU thread
 void SWRenderer::SwapImpl(AbstractTexture* texture, const EFBRectangle& xfb_region, u64 ticks,
                           float Gamma)