ui/gl/gl_wgl_api_implementation.cc

   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 "ui/gl/gl_wgl_api_implementation.h"
   6 #include "ui/gl/gl_implementation.h"
   7
   8 namespace gfx {
   9
  10 RealWGLApi* g_real_wgl;
  11
  12 void InitializeStaticGLBindingsWGL() {
  13   g_driver_wgl.InitializeStaticBindings();
  14   if (!g_real_wgl) {
  15     g_real_wgl = new RealWGLApi();
  16   }
  17   g_real_wgl->Initialize(&g_driver_wgl);
  18   g_current_wgl_context = g_real_wgl;
  19 }
  20
  21 void InitializeDebugGLBindingsWGL() {
  22   g_driver_wgl.InitializeDebugBindings();
  23 }
  24
  25 void ClearGLBindingsWGL() {
  26   if (g_real_wgl) {
  27     delete g_real_wgl;
  28     g_real_wgl = NULL;
  29   }
  30   g_current_wgl_context = NULL;
  31   g_driver_wgl.ClearBindings();
  32 }
  33
  34 WGLApi::WGLApi() {
  35 }
  36
  37 WGLApi::~WGLApi() {
  38 }
  39
  40 WGLApiBase::WGLApiBase()
  41     : driver_(NULL) {
  42 }
  43
  44 WGLApiBase::~WGLApiBase() {
  45 }
  46
  47 void WGLApiBase::InitializeBase(DriverWGL* driver) {
  48   driver_ = driver;
  49 }
  50
  51 RealWGLApi::RealWGLApi() {
  52 }
  53
  54 RealWGLApi::~RealWGLApi() {
  55 }
  56
  57 void RealWGLApi::Initialize(DriverWGL* driver) {
  58   InitializeBase(driver);
  59 }
  60
  61 TraceWGLApi::~TraceWGLApi() {
  62 }
  63
  64 bool GetGLWindowSystemBindingInfoWGL(GLWindowSystemBindingInfo* info) {
  65   const char* extensions = wglGetExtensionsStringEXT();
  66   *info = GLWindowSystemBindingInfo();
  67   if (extensions)
  68     info->extensions = extensions;
  69   return true;
  70 }
  71
  72 }  // namespace gfx
  73
  74