1 files changed, 127 insertions, 0 deletions
diff --git a/Source/Core/VideoBackends/Software/SWGfx.cpp b/Source/Core/VideoBackends/Software/SWGfx.cpp
new file mode 100644
index 0000000000..b53b7ae89a
--- /dev/null
+++ b/Source/Core/VideoBackends/Software/SWGfx.cpp
@@ -0,0 +1,127 @@
+// Copyright 2023 Dolphin Emulator Project
+// SPDX-License-Identifier: GPL-2.0-or-later
+
+#include "VideoBackends/Software/SWGfx.h"
+
+#include "Common/GL/GLContext.h"
+
+#include "VideoBackends/Software/EfbCopy.h"
+#include "VideoBackends/Software/Rasterizer.h"
+#include "VideoBackends/Software/SWOGLWindow.h"
+#include "VideoBackends/Software/SWTexture.h"
+
+#include "VideoCommon/AbstractPipeline.h"
+#include "VideoCommon/AbstractShader.h"
+#include "VideoCommon/AbstractTexture.h"
+#include "VideoCommon/NativeVertexFormat.h"
+#include "VideoCommon/Present.h"
+
+namespace SW
+{
+SWGfx::SWGfx(std::unique_ptr<SWOGLWindow> window) : m_window(std::move(window))
+{
+}
+
+bool SWGfx::IsHeadless() const
+{
+  return m_window->IsHeadless();
+}
+
+std::unique_ptr<AbstractTexture> SWGfx::CreateTexture(const TextureConfig& config,
+                                                      [[maybe_unused]] std::string_view name)
+{
+  return std::make_unique<SWTexture>(config);
+}
+
+std::unique_ptr<AbstractStagingTexture> SWGfx::CreateStagingTexture(StagingTextureType type,
+                                                                    const TextureConfig& config)
+{
+  return std::make_unique<SWStagingTexture>(type, config);
+}
+
+std::unique_ptr<AbstractFramebuffer> SWGfx::CreateFramebuffer(AbstractTexture* color_attachment,
+                                                              AbstractTexture* depth_attachment)
+{
+  return SWFramebuffer::Create(static_cast<SWTexture*>(color_attachment),
+                               static_cast<SWTexture*>(depth_attachment));
+}
+
+void SWGfx::BindBackbuffer(const ClearColor& clear_color)
+{
+  // Look for framebuffer resizes
+  if (!g_presenter->SurfaceResizedTestAndClear())
+    return;
+
+  GLContext* context = m_window->GetContext();
+  context->Update();
+  g_presenter->SetBackbuffer(context->GetBackBufferWidth(), context->GetBackBufferHeight());
+}
+
+class SWShader final : public AbstractShader
+{
+public:
+  explicit SWShader(ShaderStage stage) : AbstractShader(stage) {}
+  ~SWShader() = default;
+
+  BinaryData GetBinary() const override { return {}; }
+};
+
+std::unique_ptr<AbstractShader>
+SWGfx::CreateShaderFromSource(ShaderStage stage, [[maybe_unused]] std::string_view source,
+                              [[maybe_unused]] std::string_view name)
+{
+  return std::make_unique<SWShader>(stage);
+}
+
+std::unique_ptr<AbstractShader>
+SWGfx::CreateShaderFromBinary(ShaderStage stage, const void* data, size_t length,
+                              [[maybe_unused]] std::string_view name)
+{
+  return std::make_unique<SWShader>(stage);
+}
+
+class SWPipeline final : public AbstractPipeline
+{
+public:
+  SWPipeline() = default;
+  ~SWPipeline() override = default;
+};
+
+std::unique_ptr<AbstractPipeline> SWGfx::CreatePipeline(const AbstractPipelineConfig& config,
+                                                        const void* cache_data,
+                                                        size_t cache_data_length)
+{
+  return std::make_unique<SWPipeline>();
+}
+
+// Called on the GPU thread
+void SWGfx::ShowImage(const AbstractTexture* source_texture,
+                      const MathUtil::Rectangle<int>& source_rc)
+{
+  if (!IsHeadless())
+    m_window->ShowImage(source_texture, source_rc);
+}
+
+void SWGfx::ClearRegion(const MathUtil::Rectangle<int>& rc,
+                        const MathUtil::Rectangle<int>& target_rc, bool colorEnable,
+                        bool alphaEnable, bool zEnable, u32 color, u32 z)
+{
+  EfbCopy::ClearEfb();
+}
+
+std::unique_ptr<NativeVertexFormat>
+SWGfx::CreateNativeVertexFormat(const PortableVertexDeclaration& vtx_decl)
+{
+  return std::make_unique<NativeVertexFormat>(vtx_decl);
+}
+
+void SWGfx::SetScissorRect(const MathUtil::Rectangle<int>& rc)
+{
+  // BPFunctions calls SetScissorRect with the "best" scissor rect whenever the viewport or scissor
+  // changes.  However, the software renderer is actually able to use multiple scissor rects (which
+  // is necessary in a few renderering edge cases, such as with Major Minor's Majestic March).
+  // Thus, we use this as a signal to update the list of scissor rects, but ignore the parameter.
+  Rasterizer::ScissorChanged();
+}
+
+}  // namespace SW
+\ No newline at end of file