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//
// Copyright (c) 2002-2014 The ANGLE Project Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
//
// Surface.h: Defines the egl::Surface class, representing a drawing surface
// such as the client area of a window, including any back buffers.
// Implements EGLSurface and related functionality. [EGL 1.4] section 2.2 page 3.
#ifndef LIBANGLE_SURFACE_H_
#define LIBANGLE_SURFACE_H_
#include <EGL/egl.h>
#include "common/angleutils.h"
#include "libANGLE/Error.h"
#include "libANGLE/FramebufferAttachment.h"
#include "libANGLE/RefCountObject.h"
#include "libANGLE/formatutils.h"
#include "libANGLE/renderer/SurfaceImpl.h"
namespace gl
{
class Framebuffer;
class Texture;
}
namespace rx
{
class EGLImplFactory;
}
namespace egl
{
class AttributeMap;
class Display;
struct Config;
struct SurfaceState final : angle::NonCopyable
{
SurfaceState();
gl::Framebuffer *defaultFramebuffer;
};
class Surface : public gl::FramebufferAttachmentObject
{
public:
virtual ~Surface();
rx::SurfaceImpl *getImplementation() const { return mImplementation; }
EGLint getType() const;
Error initialize();
Error swap();
Error postSubBuffer(EGLint x, EGLint y, EGLint width, EGLint height);
Error querySurfacePointerANGLE(EGLint attribute, void **value);
Error bindTexImage(gl::Texture *texture, EGLint buffer);
Error releaseTexImage(EGLint buffer);
EGLint isPostSubBufferSupported() const;
void setSwapInterval(EGLint interval);
void setIsCurrent(bool isCurrent);
void onDestroy();
const Config *getConfig() const;
// width and height can change with client window resizing
EGLint getWidth() const;
EGLint getHeight() const;
EGLint getPixelAspectRatio() const;
EGLenum getRenderBuffer() const;
EGLenum getSwapBehavior() const;
EGLenum getTextureFormat() const;
EGLenum getTextureTarget() const;
gl::Texture *getBoundTexture() const { return mTexture.get(); }
gl::Framebuffer *getDefaultFramebuffer() { return mState.defaultFramebuffer; }
EGLint isFixedSize() const;
// FramebufferAttachmentObject implementation
gl::Extents getAttachmentSize(const gl::FramebufferAttachment::Target &target) const override;
const gl::Format &getAttachmentFormat(
const gl::FramebufferAttachment::Target &target) const override;
GLsizei getAttachmentSamples(const gl::FramebufferAttachment::Target &target) const override;
void onAttach() override {}
void onDetach() override {}
GLuint getId() const override;
bool flexibleSurfaceCompatibilityRequested() const
{
return mFlexibleSurfaceCompatibilityRequested;
}
EGLint getOrientation() const { return mOrientation; }
bool directComposition() const { return mDirectComposition; }
protected:
Surface(EGLint surfaceType, const egl::Config *config, const AttributeMap &attributes);
rx::FramebufferAttachmentObjectImpl *getAttachmentImpl() const override { return mImplementation; }
gl::Framebuffer *createDefaultFramebuffer();
// ANGLE-only method, used internally
friend class gl::Texture;
void releaseTexImageFromTexture();
SurfaceState mState;
rx::SurfaceImpl *mImplementation;
int mCurrentCount;
bool mDestroyed;
EGLint mType;
const egl::Config *mConfig;
bool mPostSubBufferRequested;
bool mFlexibleSurfaceCompatibilityRequested;
bool mFixedSize;
size_t mFixedWidth;
size_t mFixedHeight;
bool mDirectComposition;
EGLenum mTextureFormat;
EGLenum mTextureTarget;
EGLint mPixelAspectRatio; // Display aspect ratio
EGLenum mRenderBuffer; // Render buffer
EGLenum mSwapBehavior; // Buffer swap behavior
EGLint mOrientation;
BindingPointer<gl::Texture> mTexture;
gl::Format mBackFormat;
gl::Format mDSFormat;
};
class WindowSurface final : public Surface
{
public:
WindowSurface(rx::EGLImplFactory *implFactory,
const Config *config,
EGLNativeWindowType window,
const AttributeMap &attribs);
~WindowSurface() override;
};
class PbufferSurface final : public Surface
{
public:
PbufferSurface(rx::EGLImplFactory *implFactory,
const Config *config,
const AttributeMap &attribs);
PbufferSurface(rx::EGLImplFactory *implFactory,
const Config *config,
EGLClientBuffer shareHandle,
const AttributeMap &attribs);
~PbufferSurface() override;
};
class PixmapSurface final : public Surface
{
public:
PixmapSurface(rx::EGLImplFactory *implFactory,
const Config *config,
NativePixmapType nativePixmap,
const AttributeMap &attribs);
~PixmapSurface() override;
};
} // namespace egl
#endif // LIBANGLE_SURFACE_H_
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