vertex_array_manager.cc revision 5821806d5e7f356e8fa4b058a389a808ea183019 
1// Copyright (c) 2012 The Chromium Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style license that can be
3// found in the LICENSE file.
4
5#include "gpu/command_buffer/service/vertex_array_manager.h"
6#include "base/debug/trace_event.h"
7#include "base/logging.h"
8#include "gpu/command_buffer/common/gles2_cmd_utils.h"
9#include "gpu/command_buffer/service/gles2_cmd_decoder.h"
10#include "gpu/command_buffer/service/vertex_attrib_manager.h"
11
12namespace gpu {
13namespace gles2 {
14
15VertexArrayManager::VertexArrayManager()
16    : vertex_attrib_manager_count_(0),
17      have_context_(true) {
18}
19
20VertexArrayManager::~VertexArrayManager() {
21  DCHECK(vertex_attrib_managers_.empty());
22  CHECK_EQ(vertex_attrib_manager_count_, 0u);
23}
24
25void VertexArrayManager::Destroy(bool have_context) {
26  have_context_ = have_context;
27  vertex_attrib_managers_.clear();
28}
29
30void VertexArrayManager::CreateVertexAttribManager(
31    GLuint client_id, GLuint service_id, uint32 num_vertex_attribs) {
32  VertexAttribManager::Ref vertex_attrib_manager(
33    new VertexAttribManager(this, service_id, num_vertex_attribs));
34  std::pair<VertexAttribManagerMap::iterator, bool> result =
35      vertex_attrib_managers_.insert(
36      std::make_pair(client_id, vertex_attrib_manager));
37  DCHECK(result.second);
38}
39
40VertexAttribManager* VertexArrayManager::GetVertexAttribManager(
41    GLuint client_id) {
42  VertexAttribManagerMap::iterator it = vertex_attrib_managers_.find(client_id);
43  return it != vertex_attrib_managers_.end() ? it->second : NULL;
44}
45
46void VertexArrayManager::RemoveVertexAttribManager(GLuint client_id) {
47  VertexAttribManagerMap::iterator it = vertex_attrib_managers_.find(client_id);
48  if (it != vertex_attrib_managers_.end()) {
49    VertexAttribManager* vertex_attrib_manager = it->second;
50    vertex_attrib_manager->MarkAsDeleted();
51    vertex_attrib_managers_.erase(it);
52  }
53}
54
55void VertexArrayManager::StartTracking(
56    VertexAttribManager* /* vertex_attrib_manager */) {
57  ++vertex_attrib_manager_count_;
58}
59
60void VertexArrayManager::StopTracking(
61    VertexAttribManager* /* vertex_attrib_manager */) {
62  --vertex_attrib_manager_count_;
63}
64
65bool VertexArrayManager::GetClientId(
66    GLuint service_id, GLuint* client_id) const {
67  // This doesn't need to be fast. It's only used during slow queries.
68  for (VertexAttribManagerMap::const_iterator it =
69      vertex_attrib_managers_.begin();
70      it != vertex_attrib_managers_.end(); ++it) {
71    if (it->second->service_id() == service_id) {
72      *client_id = it->first;
73      return true;
74    }
75  }
76  return false;
77}
78
79}  // namespace gles2
80}  // namespace gpu
81
82
83