michael@0: //
michael@0: // Copyright (c) 2012 The ANGLE Project Authors. All rights reserved.
michael@0: // Use of this source code is governed by a BSD-style license that can be
michael@0: // found in the LICENSE file.
michael@0: //
michael@0: 
michael@0: // VertexDeclarationCache.h: Defines a helper class to construct and cache vertex declarations.
michael@0: 
michael@0: #ifndef LIBGLESV2_RENDERER_VERTEXDECLARATIONCACHE_H_
michael@0: #define LIBGLESV2_RENDERER_VERTEXDECLARATIONCACHE_H_
michael@0: 
michael@0: #include "libGLESv2/renderer/VertexDataManager.h"
michael@0: 
michael@0: namespace gl
michael@0: {
michael@0: class VertexDataManager;
michael@0: }
michael@0: 
michael@0: namespace rx
michael@0: {
michael@0: 
michael@0: class VertexDeclarationCache
michael@0: {
michael@0:   public:
michael@0:     VertexDeclarationCache();
michael@0:     ~VertexDeclarationCache();
michael@0: 
michael@0:     GLenum applyDeclaration(IDirect3DDevice9 *device, TranslatedAttribute attributes[], gl::ProgramBinary *programBinary, GLsizei instances, GLsizei *repeatDraw);
michael@0: 
michael@0:     void markStateDirty();
michael@0: 
michael@0:   private:
michael@0:     UINT mMaxLru;
michael@0: 
michael@0:     enum { NUM_VERTEX_DECL_CACHE_ENTRIES = 32 };
michael@0: 
michael@0:     struct VBData
michael@0:     {
michael@0:         unsigned int serial;
michael@0:         unsigned int stride;
michael@0:         unsigned int offset;
michael@0:     };
michael@0: 
michael@0:     VBData mAppliedVBs[gl::MAX_VERTEX_ATTRIBS];
michael@0:     IDirect3DVertexDeclaration9 *mLastSetVDecl;
michael@0:     bool mInstancingEnabled;
michael@0: 
michael@0:     struct VertexDeclCacheEntry
michael@0:     {
michael@0:         D3DVERTEXELEMENT9 cachedElements[gl::MAX_VERTEX_ATTRIBS + 1];
michael@0:         UINT lruCount;
michael@0:         IDirect3DVertexDeclaration9 *vertexDeclaration;
michael@0:     } mVertexDeclCache[NUM_VERTEX_DECL_CACHE_ENTRIES];
michael@0: };
michael@0: 
michael@0: }
michael@0: 
michael@0: #endif // LIBGLESV2_RENDERER_VERTEXDECLARATIONCACHE_H_