1 files changed, 102 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/Clear11.h b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/Clear11.h
new file mode 100644
index 0000000000..2e2eca5e80
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d11/Clear11.h
@@ -0,0 +1,102 @@
+//
+// Copyright 2013 The ANGLE Project Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+//
+
+// Clear11.h: Framebuffer clear utility class.
+
+#ifndef LIBANGLE_RENDERER_D3D_D3D11_CLEAR11_H_
+#define LIBANGLE_RENDERER_D3D_D3D11_CLEAR11_H_
+
+#include <map>
+#include <vector>
+
+#include "libANGLE/Error.h"
+#include "libANGLE/Framebuffer.h"
+#include "libANGLE/angletypes.h"
+#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
+
+namespace rx
+{
+class Renderer11;
+class RenderTarget11;
+struct ClearParameters;
+
+template <typename T>
+struct RtvDsvClearInfo
+{
+    T r, g, b, a;
+    float z;
+    float c1padding[3];
+};
+
+class Clear11 : angle::NonCopyable
+{
+  public:
+    explicit Clear11(Renderer11 *renderer);
+    ~Clear11();
+
+    // Clears the framebuffer with the supplied clear parameters, assumes that the framebuffer is
+    // currently applied.
+    angle::Result clearFramebuffer(const gl::Context *context,
+                                   const ClearParameters &clearParams,
+                                   const gl::FramebufferState &fboData);
+
+  private:
+    class ShaderManager final : angle::NonCopyable
+    {
+      public:
+        ShaderManager();
+        ~ShaderManager();
+        angle::Result getShadersAndLayout(const gl::Context *context,
+                                          Renderer11 *renderer,
+                                          const INT clearType,
+                                          const uint32_t numRTs,
+                                          const bool hasLayeredLayout,
+                                          const d3d11::InputLayout **il,
+                                          const d3d11::VertexShader **vs,
+                                          const d3d11::GeometryShader **gs,
+                                          const d3d11::PixelShader **ps);
+
+      private:
+        constexpr static size_t kNumShaders = D3D11_SIMULTANEOUS_RENDER_TARGET_COUNT;
+
+        d3d11::InputLayout mIl9;
+        d3d11::LazyShader<ID3D11VertexShader> mVs9;
+        d3d11::LazyShader<ID3D11PixelShader> mPsFloat9;
+        d3d11::LazyShader<ID3D11VertexShader> mVs;
+        d3d11::LazyShader<ID3D11VertexShader> mVsMultiview;
+        d3d11::LazyShader<ID3D11GeometryShader> mGsMultiview;
+        d3d11::LazyShader<ID3D11PixelShader> mPsDepth;
+        std::array<d3d11::LazyShader<ID3D11PixelShader>, kNumShaders> mPsFloat;
+        std::array<d3d11::LazyShader<ID3D11PixelShader>, kNumShaders> mPsUInt;
+        std::array<d3d11::LazyShader<ID3D11PixelShader>, kNumShaders> mPsSInt;
+    };
+
+    bool useVertexBuffer() const;
+    angle::Result ensureConstantBufferCreated(const gl::Context *context);
+    angle::Result ensureVertexBufferCreated(const gl::Context *context);
+    angle::Result ensureResourcesInitialized(const gl::Context *context);
+
+    Renderer11 *mRenderer;
+    bool mResourcesInitialized;
+
+    // States
+    d3d11::RasterizerState mScissorEnabledRasterizerState;
+    d3d11::RasterizerState mScissorDisabledRasterizerState;
+    gl::DepthStencilState mDepthStencilStateKey;
+    d3d11::BlendStateKey mBlendStateKey;
+
+    // Shaders and shader resources
+    ShaderManager mShaderManager;
+    d3d11::Buffer mConstantBuffer;
+    d3d11::Buffer mVertexBuffer;
+
+    // Buffer data and draw parameters
+    RtvDsvClearInfo<float> mShaderData;
+};
+
+}  // namespace rx
+
+#endif  // LIBANGLE_RENDERER_D3D_D3D11_CLEAR11_H_