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// Copyright 2014 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "build/build_config.h"
#if defined(USE_EGL)
#include <EGL/egl.h>
#endif
#include "ui/gl/gl_bindings.h"
#if defined(USE_GLX)
#include "ui/gfx/x/x11_types.h" // nogncheck
#endif
#if defined(OS_WIN)
#include "ui/gl/gl_surface_wgl.h"
#endif
#if defined(USE_EGL)
#include "ui/gl/gl_surface_egl.h"
#endif
namespace gl {
std::string DriverOSMESA::GetPlatformExtensions() {
return "";
}
#if defined(OS_WIN)
std::string DriverWGL::GetPlatformExtensions() {
const char* str = nullptr;
str = wglGetExtensionsStringARB(GLSurfaceWGL::GetDisplayDC());
if (str)
return str;
return wglGetExtensionsStringEXT();
}
#endif
#if defined(USE_EGL)
#if !defined(TOOLKIT_QT)
std::string DriverEGL::GetPlatformExtensions() {
EGLDisplay display = GLSurfaceEGL::GetHardwareDisplay();
if (display == EGL_NO_DISPLAY)
return "";
const char* str = eglQueryString(display, EGL_EXTENSIONS);
return str ? std::string(str) : "";
}
#endif
// static
std::string DriverEGL::GetClientExtensions() {
const char* str = eglQueryString(EGL_NO_DISPLAY, EGL_EXTENSIONS);
return str ? std::string(str) : "";
}
#endif
#if defined(USE_GLX)
std::string DriverGLX::GetPlatformExtensions() {
const char* str = glXQueryExtensionsString(gfx::GetXDisplay(), 0);
return str ? std::string(str) : "";
}
#endif
} // namespace gl
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