| // Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef GPU_COMMAND_BUFFER_SERVICE_VERTEX_ARRAY_MANAGER_H_ |
| #define GPU_COMMAND_BUFFER_SERVICE_VERTEX_ARRAY_MANAGER_H_ |
| |
| #include <stdint.h> |
| |
| #include <unordered_map> |
| |
| #include "base/logging.h" |
| #include "base/macros.h" |
| #include "base/memory/ref_counted.h" |
| #include "gpu/command_buffer/service/gl_utils.h" |
| #include "gpu/gpu_gles2_export.h" |
| |
| namespace gpu { |
| namespace gles2 { |
| |
| class VertexAttribManager; |
| |
| // This class keeps track of the vertex arrays and their sizes so we can do |
| // bounds checking. |
| class GPU_GLES2_EXPORT VertexArrayManager { |
| public: |
| VertexArrayManager(); |
| ~VertexArrayManager(); |
| |
| // Must call before destruction. |
| void Destroy(bool have_context); |
| |
| void MarkContextLost() { have_context_ = false; } |
| |
| // Creates a VertexAttribManager and if client_visible, |
| // maps it to the client_id. |
| scoped_refptr<VertexAttribManager> CreateVertexAttribManager( |
| GLuint client_id, |
| GLuint service_id, |
| uint32_t num_vertex_attribs, |
| bool client_visible, |
| bool do_buffer_refcounting); |
| |
| // Gets the vertex attrib manager for the given vertex array. |
| VertexAttribManager* GetVertexAttribManager(GLuint client_id); |
| |
| // Removes the vertex attrib manager for the given vertex array. |
| void RemoveVertexAttribManager(GLuint client_id); |
| |
| // Gets a client id for a given service id. |
| bool GetClientId(GLuint service_id, GLuint* client_id) const; |
| |
| private: |
| friend class VertexAttribManager; |
| |
| void StartTracking(VertexAttribManager* vertex_attrib_manager); |
| void StopTracking(VertexAttribManager* vertex_attrib_manager); |
| |
| // Info for each vertex array in the system. |
| typedef std::unordered_map<GLuint, scoped_refptr<VertexAttribManager>> |
| VertexAttribManagerMap; |
| VertexAttribManagerMap client_vertex_attrib_managers_; |
| |
| // Vertex attrib managers for emulation purposes, not visible to clients. |
| std::vector<scoped_refptr<VertexAttribManager>> other_vertex_attrib_managers_; |
| |
| // Counts the number of VertexArrayInfo allocated with 'this' as its manager. |
| // Allows to check no VertexArrayInfo will outlive this. |
| unsigned int vertex_attrib_manager_count_; |
| |
| bool have_context_; |
| |
| DISALLOW_COPY_AND_ASSIGN(VertexArrayManager); |
| }; |
| |
| } // namespace gles2 |
| } // namespace gpu |
| |
| #endif // GPU_COMMAND_BUFFER_SERVICE_VERTEX_ARRAY_MANAGER_H_ |