// Copyright 2023 The Android Open Source Project
//
// 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 expresso or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#include <GLES2/gl2.h>

#include <memory>
#include <vector>

#include "BorrowedImage.h"
#include "ExternalObjectManager.h"
#include "FrameworkFormats.h"
#include "aemu/base/files/Stream.h"

namespace gfxstream {
namespace vk {

class VkEmulation;

class ColorBufferVk {
   public:
    static std::unique_ptr<ColorBufferVk> create(VkEmulation& emulationVk, uint32_t handle,
                                                 uint32_t width, uint32_t height, GLenum format,
                                                 FrameworkFormat frameworkFormat, bool vulkanOnly,
                                                 uint32_t memoryProperty,
                                                 android::base::Stream* stream = nullptr);

    ~ColorBufferVk();

    bool readToBytes(std::vector<uint8_t>* outBytes);
    bool readToBytes(uint32_t x, uint32_t y, uint32_t w, uint32_t h, void* outBytes,
                     uint64_t outBytesSize);

    bool updateFromBytes(const std::vector<uint8_t>& bytes);
    bool updateFromBytes(uint32_t x, uint32_t y, uint32_t w, uint32_t h, const void* bytes);

    std::unique_ptr<BorrowedImageInfo> borrowForComposition(bool colorBufferIsTarget);
    std::unique_ptr<BorrowedImageInfo> borrowForDisplay();

    void onSave(android::base::Stream* stream);

    std::optional<BlobDescriptorInfo> exportBlob();

   private:
    ColorBufferVk(VkEmulation& emulationVk, uint32_t handle);

    VkEmulation& mVkEmulation;

    const uint32_t mHandle;
};

}  // namespace vk
}  // namespace gfxstream