/*

 * Copyright (c) 2025 Huawei Device Co., Ltd.

 * Licensed under the Apache License, Version 2.0 (the "License");

 * you may not use this file except in compliance with the License.

 * You may obtain a copy of the License at

 *

 *     http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software

 * distributed under the License is distributed on an "AS IS" BASIS,

 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and

 * limitations under the License.

 */

 

#ifndef NATIVEIMAGEDEMO_EGL_RENDER_CONTEXT_H

#define NATIVEIMAGEDEMO_EGL_RENDER_CONTEXT_H

 

#include <EGL/egl.h>

#include <EGL/eglext.h>

#include <GLES3/gl3.h>

#include <GLES2/gl2ext.h>

 

namespace OHOS {

namespace Media {

class EglRenderContext {

public:

    EglRenderContext();

    ~EglRenderContext() noexcept;

 

    // disallow copy and move

    EglRenderContext(const EglRenderContext &) = delete;

    EglRenderContext &operator=(const EglRenderContext &) = delete;

    void operator==(const EglRenderContext &) = delete;

    EglRenderContext(const EglRenderContext &&) = delete;

    EglRenderContext &operator=(EglRenderContext &&) = delete;

    void operator==(const EglRenderContext &&) = delete;

 

    bool Init();

    bool IsEglContextReady() const

    {

        return eglContext_ != EGL_NO_CONTEXT;

    }

    

    EGLSurface CreateEglSurface(EGLNativeWindowType surface, const EGLint *attribList = nullptr);

    void DestroyEglSurface(EGLSurface surface);

    void MakeCurrent(EGLSurface surface) const;

    void SwapBuffers(EGLSurface surface) const;

    bool SetPresentationTime(EGLSurface surface, EGLnsecsANDROID time);

 

protected:

    EGLDisplay eglDisplay_ = EGL_NO_DISPLAY;

    EGLContext eglContext_ = EGL_NO_CONTEXT;

    EGLConfig config_ = nullptr;

 

    bool hasEglSurfacelessContext_ = false;

    bool hasEglBufferAge_ = false;

    bool hasEglPartialUpdate_ = false;

    PFNEGLSETDAMAGEREGIONKHRPROC eglSetDamageRegionFunc_ = nullptr;

    PFNEGLSWAPBUFFERSWITHDAMAGEKHRPROC eglSwapBuffersWithDamageFunc_ = nullptr;

    PFNEGLCREATEIMAGEKHRPROC eglCreateImageFunc_ = nullptr;

    PFNGLEGLIMAGETARGETTEXTURE2DOESPROC eglImageTargetTexture2DOESFunc_ = nullptr;

};

}

}

#endif