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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 
InitializeGLBindingsWGL()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 
InitializeGLExtensionBindingsWGL(GLContext * context)21 void InitializeGLExtensionBindingsWGL(GLContext* context) {
22   g_driver_wgl.InitializeExtensionBindings(context);
23 }
24 
InitializeDebugGLBindingsWGL()25 void InitializeDebugGLBindingsWGL() {
26   g_driver_wgl.InitializeDebugBindings();
27 }
28 
ClearGLBindingsWGL()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 
WGLApi()38 WGLApi::WGLApi() {
39 }
40 
~WGLApi()41 WGLApi::~WGLApi() {
42 }
43 
WGLApiBase()44 WGLApiBase::WGLApiBase()
45     : driver_(NULL) {
46 }
47 
~WGLApiBase()48 WGLApiBase::~WGLApiBase() {
49 }
50 
InitializeBase(DriverWGL * driver)51 void WGLApiBase::InitializeBase(DriverWGL* driver) {
52   driver_ = driver;
53 }
54 
RealWGLApi()55 RealWGLApi::RealWGLApi() {
56 }
57 
~RealWGLApi()58 RealWGLApi::~RealWGLApi() {
59 }
60 
Initialize(DriverWGL * driver)61 void RealWGLApi::Initialize(DriverWGL* driver) {
62   InitializeBase(driver);
63 }
64 
~TraceWGLApi()65 TraceWGLApi::~TraceWGLApi() {
66 }
67 
GetGLWindowSystemBindingInfoWGL(GLWindowSystemBindingInfo * info)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 
79