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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 "ui/gl/gl_surface.h"
#include "base/logging.h"
#include "base/memory/ref_counted.h"
#include "third_party/khronos/EGL/egl.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/gl/gl_implementation.h"
#include "ui/gl/gl_surface_egl.h"
#include "ui/gl/gl_surface_osmesa.h"
#include "ui/gl/gl_surface_stub.h"
namespace gfx {
// static
bool GLSurface::InitializeOneOffInternal() {
switch (GetGLImplementation()) {
case kGLImplementationEGLGLES2:
if (!GLSurfaceEGL::InitializeOneOff()) {
LOG(ERROR) << "GLSurfaceEGL::InitializeOneOff failed.";
return false;
}
default:
break;
}
return true;
}
// static
scoped_refptr<GLSurface> GLSurface::CreateViewGLSurface(
gfx::AcceleratedWidget window) {
CHECK_NE(kGLImplementationNone, GetGLImplementation());
if (GetGLImplementation() == kGLImplementationOSMesaGL) {
scoped_refptr<GLSurface> surface(new GLSurfaceOSMesaHeadless());
if (!surface->Initialize())
return NULL;
return surface;
}
DCHECK(GetGLImplementation() == kGLImplementationEGLGLES2);
if (window != kNullAcceleratedWidget) {
scoped_refptr<GLSurface> surface = new NativeViewGLSurfaceEGL(window);
if (surface->Initialize())
return surface;
} else {
scoped_refptr<GLSurface> surface = new GLSurfaceStub();
if (surface->Initialize())
return surface;
}
return NULL;
}
// static
scoped_refptr<GLSurface> GLSurface::CreateOffscreenGLSurface(
const gfx::Size& size) {
CHECK_NE(kGLImplementationNone, GetGLImplementation());
switch (GetGLImplementation()) {
case kGLImplementationOSMesaGL: {
scoped_refptr<GLSurface> surface(new GLSurfaceOSMesa(1, size));
if (!surface->Initialize())
return NULL;
return surface;
}
case kGLImplementationEGLGLES2: {
scoped_refptr<GLSurface> surface;
if (GLSurfaceEGL::IsEGLSurfacelessContextSupported() &&
(size.width() == 0 && size.height() == 0)) {
surface = new SurfacelessEGL(size);
} else {
surface = new PbufferGLSurfaceEGL(size);
}
if (!surface->Initialize())
return NULL;
return surface;
}
default:
NOTREACHED();
return NULL;
}
}
EGLNativeDisplayType GetPlatformDefaultEGLNativeDisplay() {
return EGL_DEFAULT_DISPLAY;
}
} // namespace gfx
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