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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_glx_api_implementation.h"
      6 #include "ui/gl/gl_implementation.h"
      7 
      8 namespace gfx {
      9 
     10 RealGLXApi* g_real_glx;
     11 
     12 void InitializeStaticGLBindingsGLX() {
     13   g_driver_glx.InitializeStaticBindings();
     14   if (!g_real_glx) {
     15     g_real_glx = new RealGLXApi();
     16   }
     17   g_real_glx->Initialize(&g_driver_glx);
     18   g_current_glx_context = g_real_glx;
     19 }
     20 
     21 void InitializeDynamicGLBindingsGLX(GLContext* context) {
     22   g_driver_glx.InitializeDynamicBindings(context);
     23 }
     24 
     25 void InitializeDebugGLBindingsGLX() {
     26   g_driver_glx.InitializeDebugBindings();
     27 }
     28 
     29 void ClearGLBindingsGLX() {
     30   if (g_real_glx) {
     31     delete g_real_glx;
     32     g_real_glx = NULL;
     33   }
     34   g_current_glx_context = NULL;
     35   g_driver_glx.ClearBindings();
     36 }
     37 
     38 GLXApi::GLXApi() {
     39 }
     40 
     41 GLXApi::~GLXApi() {
     42 }
     43 
     44 GLXApiBase::GLXApiBase()
     45     : driver_(NULL) {
     46 }
     47 
     48 GLXApiBase::~GLXApiBase() {
     49 }
     50 
     51 void GLXApiBase::InitializeBase(DriverGLX* driver) {
     52   driver_ = driver;
     53 }
     54 
     55 RealGLXApi::RealGLXApi() {
     56 }
     57 
     58 RealGLXApi::~RealGLXApi() {
     59 }
     60 
     61 void RealGLXApi::Initialize(DriverGLX* driver) {
     62   InitializeBase(driver);
     63 }
     64 
     65 TraceGLXApi::~TraceGLXApi() {
     66 }
     67 
     68 bool GetGLWindowSystemBindingInfoGLX(GLWindowSystemBindingInfo* info) {
     69   Display* display = glXGetCurrentDisplay();
     70   const int kDefaultScreen = 0;
     71   const char* vendor =
     72       glXQueryServerString(display, kDefaultScreen, GLX_VENDOR);
     73   const char* version =
     74       glXQueryServerString(display, kDefaultScreen, GLX_VERSION);
     75   const char* extensions =
     76       glXQueryServerString(display, kDefaultScreen, GLX_EXTENSIONS);
     77   *info = GLWindowSystemBindingInfo();
     78   if (vendor)
     79     info->vendor = vendor;
     80   if (version)
     81     info->version = version;
     82   if (extensions)
     83     info->extensions = extensions;
     84   info->direct_rendering = !!glXIsDirect(display, glXGetCurrentContext());
     85   return true;
     86 }
     87 
     88 }  // namespace gfx
     89 
     90 
     91