content/browser/compositor/image_transport_factory.cc

   1 // Copyright 2014 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 "content/browser/compositor/image_transport_factory.h"
   6
   7 #include "base/command_line.h"
   8 #include "content/browser/compositor/gpu_process_transport_factory.h"
   9 #include "content/browser/compositor/no_transport_image_transport_factory.h"
  10 #include "content/common/host_shared_bitmap_manager.h"
  11 #include "ui/compositor/compositor.h"
  12 #include "ui/compositor/compositor_switches.h"
  13 #include "ui/gl/gl_implementation.h"
  14
  15 namespace content {
  16
  17 namespace {
  18 ImageTransportFactory* g_factory = NULL;
  19 bool g_initialized_for_unit_tests = false;
  20 static gfx::DisableNullDrawGLBindings* g_disable_null_draw = NULL;
  21 }
  22
  23 // static
  24 void ImageTransportFactory::Initialize() {
  25   DCHECK(!g_factory || g_initialized_for_unit_tests);
  26   if (g_initialized_for_unit_tests)
  27     return;
  28   g_factory = new GpuProcessTransportFactory;
  29   ui::ContextFactory::SetInstance(g_factory->AsContextFactory());
  30   ui::Compositor::SetSharedBitmapManager(HostSharedBitmapManager::current());
  31 }
  32
  33 void ImageTransportFactory::InitializeForUnitTests(
  34     scoped_ptr<ui::ContextFactory> test_factory) {
  35   DCHECK(!g_factory);
  36   DCHECK(!g_initialized_for_unit_tests);
  37   g_initialized_for_unit_tests = true;
  38
  39   CommandLine* command_line = CommandLine::ForCurrentProcess();
  40   if (command_line->HasSwitch(switches::kEnablePixelOutputInTests))
  41     g_disable_null_draw = new gfx::DisableNullDrawGLBindings;
  42
  43   g_factory = new NoTransportImageTransportFactory(test_factory.Pass());
  44   ui::ContextFactory::SetInstance(g_factory->AsContextFactory());
  45 }
  46
  47 // static
  48 void ImageTransportFactory::Terminate() {
  49   ui::ContextFactory::SetInstance(NULL);
  50   delete g_factory;
  51   g_factory = NULL;
  52   delete g_disable_null_draw;
  53   g_disable_null_draw = NULL;
  54   g_initialized_for_unit_tests = false;
  55 }
  56
  57 // static
  58 ImageTransportFactory* ImageTransportFactory::GetInstance() {
  59   return g_factory;
  60 }
  61
  62 }  // namespace content