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//
// Copyright (c) 2015 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.
//
// Image.h: Defines the egl::Image class representing the EGLimage object.
#ifndef LIBANGLE_IMAGE_H_
#define LIBANGLE_IMAGE_H_
#include "common/angleutils.h"
#include "libANGLE/AttributeMap.h"
#include "libANGLE/Error.h"
#include "libANGLE/RefCountObject.h"
#include "libANGLE/formatutils.h"
#include <set>
namespace rx
{
class ImageImpl;
}
namespace egl
{
class Image;
class ImageSibling : public RefCountObject
{
public:
ImageSibling(GLuint id);
virtual ~ImageSibling();
protected:
// Set the image target of this sibling
void setTargetImage(egl::Image *imageTarget);
// Orphan all EGL image sources and targets
gl::Error orphanImages();
private:
friend class Image;
// Called from Image only to add a new source image
void addImageSource(egl::Image *imageSource);
// Called from Image only to remove a source image when the Image is being deleted
void removeImageSource(egl::Image *imageSource);
std::set<Image *> mSourcesOf;
BindingPointer<Image> mTargetOf;
};
class Image final : public RefCountObject
{
public:
Image(rx::ImageImpl *impl, EGLenum target, ImageSibling *buffer, const AttributeMap &attribs);
~Image();
const gl::Format &getFormat() const;
size_t getWidth() const;
size_t getHeight() const;
size_t getSamples() const;
rx::ImageImpl *getImplementation();
const rx::ImageImpl *getImplementation() const;
private:
friend class ImageSibling;
// Called from ImageSibling only notify the image that a new target sibling exists for state
// tracking.
void addTargetSibling(ImageSibling *sibling);
// Called from ImageSibling only to notify the image that a sibling (source or target) has
// been respecified and state tracking should be updated.
gl::Error orphanSibling(ImageSibling *sibling);
rx::ImageImpl *mImplementation;
gl::Format mFormat;
size_t mWidth;
size_t mHeight;
size_t mSamples;
BindingPointer<ImageSibling> mSource;
std::set<ImageSibling *> mTargets;
};
}
#endif // LIBANGLE_IMAGE_H_
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