Source/WebCore/platform/graphics/cv/GraphicsContextGLCV.h

/*
 * Copyright (C) 2020 Apple Inc. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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 */

#pragma once

#if ENABLE(WEBGL) && USE(AVFOUNDATION)

#include "GraphicsContextGL.h"

typedef struct __CVBuffer* CVPixelBufferRef;

namespace WebCore {

// Interface to interact with CV objects and GraphicsContextGL.
class GraphicsContextGLCV {
public:
    virtual ~GraphicsContextGLCV() = default;

    using FlipY = GraphicsContextGL::FlipY;
    // Copies CV pixel buffer to GraphicsContextGL TEXTURE_2D texture of the same size as the pixel buffer.
    // Returns true on success.
    virtual bool copyPixelBufferToTexture(CVPixelBufferRef, PlatformGLObject outputTexture, GCGLint level, GCGLenum internalFormat, GCGLenum format, GCGLenum type, FlipY) = 0;
};

}

#endif