1 files changed, 181 insertions, 0 deletions
diff --git a/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/StateManager11.h b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/StateManager11.h
new file mode 100644
index 0000000000..f900882d7e
--- /dev/null
+++ b/src/3rdparty/angle/src/libANGLE/renderer/d3d/d3d11/StateManager11.h
@@ -0,0 +1,181 @@
+//
+// Copyright (c) 2015 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.
+//
+
+// StateManager11.h: Defines a class for caching D3D11 state
+
+#ifndef LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_
+#define LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_
+
+#include <array>
+
+#include "libANGLE/angletypes.h"
+#include "libANGLE/Data.h"
+#include "libANGLE/State.h"
+#include "libANGLE/renderer/d3d/d3d11/RenderStateCache.h"
+#include "libANGLE/renderer/d3d/d3d11/renderer11_utils.h"
+#include "libANGLE/renderer/d3d/RendererD3D.h"
+
+namespace rx
+{
+
+struct RenderTargetDesc;
+struct Renderer11DeviceCaps;
+
+struct dx_VertexConstants11
+{
+    float depthRange[4];
+    float viewAdjust[4];
+    float viewCoords[4];
+    float viewScale[4];
+};
+
+struct dx_PixelConstants11
+{
+    float depthRange[4];
+    float viewCoords[4];
+    float depthFront[4];
+    float viewScale[4];
+};
+
+class StateManager11 final : angle::NonCopyable
+{
+  public:
+    StateManager11(Renderer11 *renderer);
+    ~StateManager11();
+
+    void initialize(const gl::Caps &caps);
+    void syncState(const gl::State &state, const gl::State::DirtyBits &dirtyBits);
+
+    gl::Error setBlendState(const gl::Framebuffer *framebuffer,
+                            const gl::BlendState &blendState,
+                            const gl::ColorF &blendColor,
+                            unsigned int sampleMask);
+
+    gl::Error setDepthStencilState(const gl::State &glState);
+
+    gl::Error setRasterizerState(const gl::RasterizerState &rasterState);
+
+    void setScissorRectangle(const gl::Rectangle &scissor, bool enabled);
+
+    void setViewport(const gl::Caps *caps, const gl::Rectangle &viewport, float zNear, float zFar);
+
+    void updatePresentPath(bool presentPathFastActive,
+                           const gl::FramebufferAttachment *framebufferAttachment);
+
+    const dx_VertexConstants11 &getVertexConstants() const { return mVertexConstants; }
+    const dx_PixelConstants11 &getPixelConstants() const { return mPixelConstants; }
+
+    void updateStencilSizeIfChanged(bool depthStencilInitialized, unsigned int stencilSize);
+
+    void setShaderResource(gl::SamplerType shaderType,
+                           UINT resourceSlot,
+                           ID3D11ShaderResourceView *srv);
+    gl::Error clearTextures(gl::SamplerType samplerType, size_t rangeStart, size_t rangeEnd);
+
+    gl::Error syncFramebuffer(const gl::Framebuffer *framebuffer);
+
+    void invalidateRenderTarget();
+    void invalidateEverything();
+    bool setRenderTargets(const RenderTargetArray &renderTargets,
+                          ID3D11DepthStencilView *depthStencil);
+    void setRenderTarget(ID3D11RenderTargetView *renderTarget,
+                         ID3D11DepthStencilView *depthStencil);
+
+  private:
+    void unsetConflictingSRVs(gl::SamplerType shaderType,
+                              uintptr_t resource,
+                              const gl::ImageIndex &index);
+    void setViewportBounds(const int width, const int height);
+
+    Renderer11 *mRenderer;
+
+    // Blend State
+    bool mBlendStateIsDirty;
+    // TODO(dianx) temporary representation of a dirty bit. once we move enough states in,
+    // try experimenting with dirty bit instead of a bool
+    gl::BlendState mCurBlendState;
+    gl::ColorF mCurBlendColor;
+    unsigned int mCurSampleMask;
+
+    // Currently applied depth stencil state
+    bool mDepthStencilStateIsDirty;
+    gl::DepthStencilState mCurDepthStencilState;
+    int mCurStencilRef;
+    int mCurStencilBackRef;
+    unsigned int mCurStencilSize;
+    Optional<bool> mCurDisableDepth;
+    Optional<bool> mCurDisableStencil;
+
+    // Currently applied rasterizer state
+    bool mRasterizerStateIsDirty;
+    gl::RasterizerState mCurRasterState;
+
+    // Currently applied scissor rectangle state
+    bool mScissorStateIsDirty;
+    bool mCurScissorEnabled;
+    gl::Rectangle mCurScissorRect;
+
+    // Currently applied viewport state
+    bool mViewportStateIsDirty;
+    gl::Rectangle mCurViewport;
+    float mCurNear;
+    float mCurFar;
+
+    // Things needed in viewport state
+    dx_VertexConstants11 mVertexConstants;
+    dx_PixelConstants11 mPixelConstants;
+
+    // Render target variables
+    gl::Extents mViewportBounds;
+
+    // EGL_ANGLE_experimental_present_path variables
+    bool mCurPresentPathFastEnabled;
+    int mCurPresentPathFastColorBufferHeight;
+
+    // Current RenderTarget state
+    std::array<uintptr_t, gl::IMPLEMENTATION_MAX_DRAW_BUFFERS> mAppliedRTVs;
+    uintptr_t mAppliedDSV;
+
+    // Currently applied textures
+    struct SRVRecord
+    {
+        uintptr_t srv;
+        uintptr_t resource;
+        D3D11_SHADER_RESOURCE_VIEW_DESC desc;
+    };
+
+    // A cache of current SRVs that also tracks the highest 'used' (non-NULL) SRV
+    // We might want to investigate a more robust approach that is also fast when there's
+    // a large gap between used SRVs (e.g. if SRV 0 and 7 are non-NULL, this approach will
+    // waste time on SRVs 1-6.)
+    class SRVCache : angle::NonCopyable
+    {
+      public:
+        SRVCache() : mHighestUsedSRV(0) {}
+
+        void initialize(size_t size) { mCurrentSRVs.resize(size); }
+
+        size_t size() const { return mCurrentSRVs.size(); }
+        size_t highestUsed() const { return mHighestUsedSRV; }
+
+        const SRVRecord &operator[](size_t index) const { return mCurrentSRVs[index]; }
+        void clear();
+        void update(size_t resourceIndex, ID3D11ShaderResourceView *srv);
+
+      private:
+        std::vector<SRVRecord> mCurrentSRVs;
+        size_t mHighestUsedSRV;
+    };
+
+    SRVCache mCurVertexSRVs;
+    SRVCache mCurPixelSRVs;
+
+    // A block of NULL pointers, cached so we don't re-allocate every draw call
+    std::vector<ID3D11ShaderResourceView *> mNullSRVs;
+};
+
+}  // namespace rx
+#endif  // LIBANGLE_RENDERER_D3D11_STATEMANAGER11_H_