src/dawn/native/opengl/UtilsEGL.h

// Copyright 2022 The Dawn & Tint Authors
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#ifndef SRC_DAWN_NATIVE_OPENGL_UTILSEGL_H_
#define SRC_DAWN_NATIVE_OPENGL_UTILSEGL_H_

#include "dawn/common/NonMovable.h"
#include "dawn/common/RefCounted.h"
#include "dawn/common/Time.h"
#include "dawn/common/egl_platform.h"
#include "dawn/native/Error.h"
#include "dawn/native/opengl/DisplayEGL.h"

namespace dawn::native::opengl {

class EGLFunctions;

const char* EGLErrorAsString(EGLint error);
MaybeError CheckEGL(const EGLFunctions& egl, EGLBoolean result, const char* context);

class WrappedEGLSync : public RefCounted, NonMovable {
  public:
    static ResultOrError<Ref<WrappedEGLSync>> Create(DisplayEGL* display,
                                                     EGLenum type,
                                                     const EGLint* attribs);
    static ResultOrError<Ref<WrappedEGLSync>> AcquireExternal(DisplayEGL* display, EGLSync sync);

    EGLSync Get() const;

    // Call eglSignalSync with given mode. Requires sync type of EGL_SYNC_REUSABLE_KHR.
    MaybeError Signal(EGLenum mode);

    // Call eglClientWaitSync
    ResultOrError<EGLenum> ClientWait(EGLint flags, Nanoseconds timeout);

    // Call eglWaitSync (server wait)
    MaybeError Wait();

    // Call eglDupNativeFenceFDANDROID
    ResultOrError<EGLint> DupFD();

  protected:
    WrappedEGLSync(DisplayEGL* display, EGLSync sync, bool ownsSync);
    ~WrappedEGLSync() override;

  private:
    Ref<DisplayEGL> mDisplay;
    EGLSync mSync = nullptr;
    bool mOwnsSync = false;
};

}  // namespace dawn::native::opengl

#endif  // SRC_DAWN_NATIVE_OPENGL_UTILSEGL_H_