1 files changed, 59 insertions, 0 deletions
diff --git a/gpu/command_buffer/service/context_group.cc b/gpu/command_buffer/service/context_group.cc
new file mode 100644
index 0000000..5bc0ae41
--- /dev/null
+++ b/gpu/command_buffer/service/context_group.cc
@@ -0,0 +1,59 @@
+// Copyright (c) 2010 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.
+
+#include "gpu/command_buffer/service/context_group.h"
+#include "gpu/command_buffer/service/buffer_manager.h"
+#include "gpu/command_buffer/service/id_manager.h"
+#include "gpu/command_buffer/service/program_manager.h"
+#include "gpu/command_buffer/service/shader_manager.h"
+#include "gpu/command_buffer/service/texture_manager.h"
+
+namespace gpu {
+namespace gles2 {
+
+ContextGroup::ContextGroup()
+    : initialized_(false),
+      max_vertex_attribs_(0u),
+      max_texture_units_(0u) {
+}
+
+ContextGroup::~ContextGroup() {
+}
+
+bool ContextGroup::Initialize() {
+  if (initialized_) {
+    return true;
+  }
+
+  id_manager_.reset(new IdManager());
+  buffer_manager_.reset(new BufferManager());
+  shader_manager_.reset(new ShaderManager());
+  program_manager_.reset(new ProgramManager());
+
+  // Lookup GL things we need to know.
+  GLint value;
+  glGetIntegerv(GL_MAX_VERTEX_ATTRIBS, &value);
+  max_vertex_attribs_ = value;
+  const GLuint kGLES2RequiredMiniumumVertexAttribs = 8u;
+  DCHECK_GE(max_vertex_attribs_, kGLES2RequiredMiniumumVertexAttribs);
+
+  glGetIntegerv(GL_MAX_COMBINED_TEXTURE_IMAGE_UNITS, &value);
+  max_texture_units_ = value;
+  const GLuint kGLES2RequiredMiniumumTextureUnits = 8u;
+  DCHECK_GE(max_texture_units_, kGLES2RequiredMiniumumTextureUnits);
+
+  GLint max_texture_size;
+  GLint max_cube_map_texture_size;
+  glGetIntegerv(GL_MAX_TEXTURE_SIZE, &max_texture_size);
+  glGetIntegerv(GL_MAX_CUBE_MAP_TEXTURE_SIZE, &max_cube_map_texture_size);
+  texture_manager_.reset(new TextureManager(max_texture_size,
+                                            max_cube_map_texture_size));
+  initialized_ = true;
+  return true;
+}
+
+}  // namespace gles2
+}  // namespace gpu
+
+