| // |
| // Copyright (c) 2002-2010 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. |
| // |
| |
| // geometry/VertexDataManager.h: Defines the VertexDataManager, a class that |
| // runs the Buffer translation process. |
| |
| #ifndef LIBGLESV2_GEOMETRY_VERTEXDATAMANAGER_H_ |
| #define LIBGLESV2_GEOMETRY_VERTEXDATAMANAGER_H_ |
| |
| #include <bitset> |
| #include <cstddef> |
| |
| #define GL_APICALL |
| #include <GLES2/gl2.h> |
| |
| #include "libGLESv2/Context.h" |
| |
| namespace gl |
| { |
| |
| class Buffer; |
| class BufferBackEnd; |
| class TranslatedVertexBuffer; |
| struct TranslatedAttribute; |
| struct FormatConverter; |
| struct TranslatedIndexData; |
| |
| class VertexDataManager |
| { |
| public: |
| VertexDataManager(Context *context, BufferBackEnd *backend); |
| ~VertexDataManager(); |
| |
| void dirtyCurrentValues() { mDirtyCurrentValues = true; } |
| |
| GLenum preRenderValidate(GLint start, |
| GLsizei count, |
| TranslatedAttribute *outAttribs); |
| |
| private: |
| std::bitset<MAX_VERTEX_ATTRIBS> getActiveAttribs() const; |
| |
| void reloadCurrentValues(const AttributeState *attribs, std::size_t *offset); |
| |
| void processNonArrayAttributes(const AttributeState *attribs, const std::bitset<MAX_VERTEX_ATTRIBS> &activeAttribs, TranslatedAttribute *translated); |
| |
| std::size_t typeSize(GLenum type) const; |
| std::size_t interpretGlStride(const AttributeState &attrib) const; |
| |
| std::size_t roundUp(std::size_t x, std::size_t multiple) const; |
| std::size_t spaceRequired(const AttributeState &attrib, std::size_t maxVertex) const; |
| |
| Context *mContext; |
| BufferBackEnd *mBackend; |
| |
| TranslatedVertexBuffer *mStreamBuffer; |
| |
| bool mDirtyCurrentValues; |
| std::size_t mCurrentValueOffset; // Offset within mCurrentValueBuffer that the current attribute values were last loaded at. |
| TranslatedVertexBuffer *mCurrentValueBuffer; |
| }; |
| |
| } |
| |
| #endif // LIBGLESV2_GEOMETRY_VERTEXDATAMANAGER_H_ |