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 InitializeGLBindingsWGL() {
  13   g_driver_wgl.InitializeBindings();
  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 InitializeGLExtensionBindingsWGL(GLContext* context) {
  22   g_driver_wgl.InitializeExtensionBindings(context);
  23 }
  24
  25 void InitializeDebugGLBindingsWGL() {
  26   g_driver_wgl.InitializeDebugBindings();
  27 }
  28
  29 void ClearGLBindingsWGL() {
  30   if (g_real_wgl) {
  31     delete g_real_wgl;
  32     g_real_wgl = NULL;
  33   }
  34   g_current_wgl_context = NULL;
  35   g_driver_wgl.ClearBindings();
  36 }
  37
  38 WGLApi::WGLApi() {
  39 }
  40
  41 WGLApi::~WGLApi() {
  42 }
  43
  44 WGLApiBase::WGLApiBase()
  45     : driver_(NULL) {
  46 }
  47
  48 WGLApiBase::~WGLApiBase() {
  49 }
  50
  51 void WGLApiBase::InitializeBase(DriverWGL* driver) {
  52   driver_ = driver;
  53 }
  54
  55 RealWGLApi::RealWGLApi() {
  56 }
  57
  58 RealWGLApi::~RealWGLApi() {
  59 }
  60
  61 void RealWGLApi::Initialize(DriverWGL* driver) {
  62   InitializeBase(driver);
  63 }
  64
  65 TraceWGLApi::~TraceWGLApi() {
  66 }
  67
  68 bool GetGLWindowSystemBindingInfoWGL(GLWindowSystemBindingInfo* info) {
  69   const char* extensions = wglGetExtensionsStringEXT();
  70   *info = GLWindowSystemBindingInfo();
  71   if (extensions)
  72     info->extensions = extensions;
  73   return true;
  74 }
  75
  76 }  // namespace gfx
  77
  78