1 files changed, 92 insertions, 0 deletions
diff --git a/gfx/angle/src/libANGLE/Image.h b/gfx/angle/src/libANGLE/Image.h
new file mode 100755
index 000000000..a579beab2
--- /dev/null
+++ b/gfx/angle/src/libANGLE/Image.h
@@ -0,0 +1,92 @@
+//
+// 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_