Virtual GL

gpu/command_buffer/service/gl_context_virtual.cc

+// 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.
+
+#include "gpu/command_buffer/service/gl_context_virtual.h"
+
+#include "gpu/command_buffer/service/gl_state_restorer_impl.h"
+#include "ui/gl/gl_surface.h"
+
+namespace gpu {
+
+GLContextVirtual::GLContextVirtual(
+    gfx::GLShareGroup* share_group,
+    gfx::GLContext* shared_context,
+    gles2::GLES2Decoder* decoder)
+  : GLContext(share_group),
+    shared_context_(shared_context),
+    display_(NULL),
+    state_restorer_(new GLStateRestorerImpl(decoder)) {
+  shared_context_->SetupForVirtualization();
+}
+
+gfx::Display* GLContextVirtual::display() {
+  return display_;
+}
+
+bool GLContextVirtual::Initialize(
+    gfx::GLSurface* compatible_surface, gfx::GpuPreference gpu_preference) {
+  display_ = static_cast<gfx::Display*>(compatible_surface->GetDisplay());
+
+  return true;
+}
+
+void GLContextVirtual::Destroy() {
+}
+
+bool GLContextVirtual::MakeCurrent(gfx::GLSurface* surface) {
+  shared_context_->MakeVirtuallyCurrent(this, surface);
+  return true;
+}
+
+void GLContextVirtual::ReleaseCurrent(gfx::GLSurface* surface) {
+  shared_context_ = NULL;
+  display_ = NULL;
+}
+
+bool GLContextVirtual::IsCurrent(gfx::GLSurface* surface) {
+  return true;
+}
+
+void* GLContextVirtual::GetHandle() {
+  return NULL;
+}
+
+gfx::GLStateRestorer* GLContextVirtual::GetGLStateRestorer() {
+  return state_restorer_.get();
+}
+
+void GLContextVirtual::SetSwapInterval(int interval) {
+  shared_context_->SetSwapInterval(interval);
+}
+
+std::string GLContextVirtual::GetExtensions() {
+  return shared_context_->GetExtensions();
+}
+
+bool GLContextVirtual::GetTotalGpuMemory(size_t* bytes) {
+  return shared_context_->GetTotalGpuMemory(bytes);
+}
+
+bool GLContextVirtual::WasAllocatedUsingRobustnessExtension() {
+  return shared_context_->WasAllocatedUsingRobustnessExtension();
+}
+
+GLContextVirtual::~GLContextVirtual() {
+  Destroy();
+}
+
+}  // namespace gpu