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// Copyright (c) 2012 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.
#ifndef UI_GL_GL_SURFACE_EGL_H_
#define UI_GL_GL_SURFACE_EGL_H_
#if defined(OS_WIN)
#include <windows.h>
#endif
#include <string>
#include "base/compiler_specific.h"
#include "base/time/time.h"
#include "ui/gfx/size.h"
#include "ui/gfx/vsync_provider.h"
#include "ui/gl/gl_bindings.h"
#include "ui/gl/gl_surface.h"
namespace gfx {
// Get default EGL display for GLSurfaceEGL (differs by platform).
EGLNativeDisplayType GetPlatformDefaultEGLNativeDisplay();
// Interface for EGL surface.
class GL_EXPORT GLSurfaceEGL : public GLSurface {
public:
GLSurfaceEGL();
// Implement GLSurface.
virtual EGLDisplay GetDisplay() OVERRIDE;
static bool InitializeOneOff();
static EGLDisplay GetHardwareDisplay();
static EGLNativeDisplayType GetNativeDisplay();
// These aren't particularly tied to surfaces, but since we already
// have the static InitializeOneOff here, it's easiest to reuse its
// initialization guards.
static const char* GetEGLExtensions();
static bool HasEGLExtension(const char* name);
static bool IsCreateContextRobustnessSupported();
static bool IsEGLSurfacelessContextSupported();
protected:
virtual ~GLSurfaceEGL();
private:
DISALLOW_COPY_AND_ASSIGN(GLSurfaceEGL);
};
// Encapsulates an EGL surface bound to a view.
class GL_EXPORT NativeViewGLSurfaceEGL : public GLSurfaceEGL {
public:
explicit NativeViewGLSurfaceEGL(EGLNativeWindowType window);
// Implement GLSurface.
virtual EGLConfig GetConfig() OVERRIDE;
virtual bool Initialize() OVERRIDE;
virtual void Destroy() OVERRIDE;
virtual bool Resize(const gfx::Size& size) OVERRIDE;
virtual bool Recreate() OVERRIDE;
virtual bool IsOffscreen() OVERRIDE;
virtual bool SwapBuffers() OVERRIDE;
virtual gfx::Size GetSize() OVERRIDE;
virtual EGLSurface GetHandle() OVERRIDE;
virtual bool SupportsPostSubBuffer() OVERRIDE;
virtual bool PostSubBuffer(int x, int y, int width, int height) OVERRIDE;
virtual VSyncProvider* GetVSyncProvider() OVERRIDE;
// Create a NativeViewGLSurfaceEGL with an externally provided VSyncProvider.
// Takes ownership of the VSyncProvider.
virtual bool Initialize(scoped_ptr<VSyncProvider> sync_provider);
protected:
virtual ~NativeViewGLSurfaceEGL();
EGLNativeWindowType window_;
private:
EGLSurface surface_;
bool supports_post_sub_buffer_;
EGLConfig config_;
gfx::Size size_;
scoped_ptr<VSyncProvider> vsync_provider_;
DISALLOW_COPY_AND_ASSIGN(NativeViewGLSurfaceEGL);
};
// Encapsulates a pbuffer EGL surface.
class GL_EXPORT PbufferGLSurfaceEGL : public GLSurfaceEGL {
public:
explicit PbufferGLSurfaceEGL(const gfx::Size& size);
// Implement GLSurface.
virtual EGLConfig GetConfig() OVERRIDE;
virtual bool Initialize() OVERRIDE;
virtual void Destroy() OVERRIDE;
virtual bool IsOffscreen() OVERRIDE;
virtual bool SwapBuffers() OVERRIDE;
virtual gfx::Size GetSize() OVERRIDE;
virtual bool Resize(const gfx::Size& size) OVERRIDE;
virtual EGLSurface GetHandle() OVERRIDE;
virtual void* GetShareHandle() OVERRIDE;
protected:
virtual ~PbufferGLSurfaceEGL();
private:
gfx::Size size_;
EGLSurface surface_;
DISALLOW_COPY_AND_ASSIGN(PbufferGLSurfaceEGL);
};
// SurfacelessEGL is used as Offscreen surface when platform supports
// KHR_surfaceless_context and GL_OES_surfaceless_context. This would avoid the
// need to create a dummy EGLsurface in case we render to client API targets.
class GL_EXPORT SurfacelessEGL : public GLSurfaceEGL {
public:
explicit SurfacelessEGL(const gfx::Size& size);
// Implement GLSurface.
virtual EGLConfig GetConfig() OVERRIDE;
virtual bool Initialize() OVERRIDE;
virtual void Destroy() OVERRIDE;
virtual bool IsOffscreen() OVERRIDE;
virtual bool SwapBuffers() OVERRIDE;
virtual gfx::Size GetSize() OVERRIDE;
virtual bool Resize(const gfx::Size& size) OVERRIDE;
virtual EGLSurface GetHandle() OVERRIDE;
virtual void* GetShareHandle() OVERRIDE;
protected:
virtual ~SurfacelessEGL();
private:
gfx::Size size_;
DISALLOW_COPY_AND_ASSIGN(SurfacelessEGL);
};
} // namespace gfx
#endif // UI_GL_GL_SURFACE_EGL_H_
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