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72 lines
2.2 KiB
C++
72 lines
2.2 KiB
C++
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file.
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#ifndef GPU_COMMAND_BUFFER_SERVICE_VERTEX_ARRAY_MANAGER_H_
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#define GPU_COMMAND_BUFFER_SERVICE_VERTEX_ARRAY_MANAGER_H_
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#include "base/basictypes.h"
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#include "base/containers/hash_tables.h"
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#include "base/logging.h"
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#include "base/memory/ref_counted.h"
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#include "base/memory/scoped_ptr.h"
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#include "gpu/command_buffer/service/gl_utils.h"
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#include "gpu/gpu_export.h"
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namespace gpu {
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namespace gles2 {
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class VertexAttribManager;
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// This class keeps track of the vertex arrays and their sizes so we can do
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// bounds checking.
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class GPU_EXPORT VertexArrayManager {
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public:
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VertexArrayManager();
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~VertexArrayManager();
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// Must call before destruction.
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void Destroy(bool have_context);
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// Creates a VertexAttribManager and if client_visible,
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// maps it to the client_id.
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scoped_refptr<VertexAttribManager> CreateVertexAttribManager(
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GLuint client_id,
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GLuint service_id,
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uint32 num_vertex_attribs,
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bool client_visible);
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// Gets the vertex attrib manager for the given vertex array.
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VertexAttribManager* GetVertexAttribManager(GLuint client_id);
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// Removes the vertex attrib manager for the given vertex array.
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void RemoveVertexAttribManager(GLuint client_id);
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// Gets a client id for a given service id.
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bool GetClientId(GLuint service_id, GLuint* client_id) const;
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private:
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friend class VertexAttribManager;
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void StartTracking(VertexAttribManager* vertex_attrib_manager);
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void StopTracking(VertexAttribManager* vertex_attrib_manager);
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// Info for each vertex array in the system.
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typedef base::hash_map<GLuint, scoped_refptr<VertexAttribManager> >
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VertexAttribManagerMap;
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VertexAttribManagerMap vertex_attrib_managers_;
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// Counts the number of VertexArrayInfo allocated with 'this' as its manager.
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// Allows to check no VertexArrayInfo will outlive this.
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unsigned int vertex_attrib_manager_count_;
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bool have_context_;
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DISALLOW_COPY_AND_ASSIGN(VertexArrayManager);
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};
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} // namespace gles2
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} // namespace gpu
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#endif // GPU_COMMAND_BUFFER_SERVICE_VERTEX_ARRAY_MANAGER_H_
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