1 files changed, 68 insertions, 0 deletions
diff --git a/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d9/VertexDeclarationCache.h b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d9/VertexDeclarationCache.h
new file mode 100644
index 0000000000..22e677d800
--- /dev/null
+++ b/gfx/angle/checkout/src/libANGLE/renderer/d3d/d3d9/VertexDeclarationCache.h
@@ -0,0 +1,68 @@
+//
+// Copyright 2012 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.
+//
+
+// VertexDeclarationCache.h: Defines a helper class to construct and cache vertex declarations.
+
+#ifndef LIBANGLE_RENDERER_D3D_D3D9_VERTEXDECLARATIONCACHE_H_
+#define LIBANGLE_RENDERER_D3D_D3D9_VERTEXDECLARATIONCACHE_H_
+
+#include "libANGLE/Error.h"
+#include "libANGLE/renderer/d3d/VertexDataManager.h"
+
+namespace gl
+{
+class VertexDataManager;
+class Program;
+}  // namespace gl
+
+namespace rx
+{
+class VertexDeclarationCache
+{
+  public:
+    VertexDeclarationCache();
+    ~VertexDeclarationCache();
+
+    angle::Result applyDeclaration(const gl::Context *context,
+                                   IDirect3DDevice9 *device,
+                                   const std::vector<TranslatedAttribute> &attributes,
+                                   gl::Program *program,
+                                   GLint start,
+                                   GLsizei instances,
+                                   GLsizei *repeatDraw);
+
+    void markStateDirty();
+
+  private:
+    UINT mMaxLru;
+
+    enum
+    {
+        NUM_VERTEX_DECL_CACHE_ENTRIES = 32
+    };
+
+    struct VBData
+    {
+        unsigned int serial;
+        unsigned int stride;
+        unsigned int offset;
+    };
+
+    VBData mAppliedVBs[gl::MAX_VERTEX_ATTRIBS];
+    IDirect3DVertexDeclaration9 *mLastSetVDecl;
+    bool mInstancingEnabled;
+
+    struct VertexDeclCacheEntry
+    {
+        D3DVERTEXELEMENT9 cachedElements[gl::MAX_VERTEX_ATTRIBS + 1];
+        UINT lruCount;
+        IDirect3DVertexDeclaration9 *vertexDeclaration;
+    } mVertexDeclCache[NUM_VERTEX_DECL_CACHE_ENTRIES];
+};
+
+}  // namespace rx
+
+#endif  // LIBANGLE_RENDERER_D3D_D3D9_VERTEXDECLARATIONCACHE_H_