f4334277
 Hu Chunming
提交3rdparty
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// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
#ifndef UI_PLUGIN_API_HPP
#define UI_PLUGIN_API_HPP
#include <opencv2/core/cvdef.h>
#include <opencv2/core/llapi/llapi.h>
#include "backend.hpp"
#if !defined(BUILD_PLUGIN)
/// increased for backward-compatible changes, e.g. add new function
/// Caller API <= Plugin API -> plugin is fully compatible
/// Caller API > Plugin API -> plugin is not fully compatible, caller should use extra checks to use plugins with older API
#define API_VERSION 0 // preview
/// increased for incompatible changes, e.g. remove function argument
/// Caller ABI == Plugin ABI -> plugin is compatible
/// Caller ABI > Plugin ABI -> plugin is not compatible, caller should use shim code to use old ABI plugins (caller may know how lower ABI works, so it is possible)
/// Caller ABI < Plugin ABI -> plugin can't be used (plugin should provide interface with lower ABI to handle that)
#define ABI_VERSION 0 // preview
#else // !defined(BUILD_PLUGIN)
#if !defined(ABI_VERSION) || !defined(API_VERSION)
#error "Plugin must define ABI_VERSION and API_VERSION before including plugin_api.hpp"
#endif
#endif // !defined(BUILD_PLUGIN)
typedef cv::highgui_backend::UIBackend* CvPluginUIBackend;
struct OpenCV_UI_Plugin_API_v0_0_api_entries
{
/** @brief Get backend API instance
@param[out] handle pointer on backend API handle
@note API-CALL 1, API-Version == 0
*/
CvResult (CV_API_CALL *getInstance)(CV_OUT CvPluginUIBackend* handle) CV_NOEXCEPT;
}; // OpenCV_UI_Plugin_API_v0_0_api_entries
typedef struct OpenCV_UI_Plugin_API_v0
{
OpenCV_API_Header api_header;
struct OpenCV_UI_Plugin_API_v0_0_api_entries v0;
} OpenCV_UI_Plugin_API_v0;
#if ABI_VERSION == 0 && API_VERSION == 0
typedef OpenCV_UI_Plugin_API_v0 OpenCV_UI_Plugin_API;
#else
#error "Not supported configuration: check ABI_VERSION/API_VERSION"
#endif
#ifdef BUILD_PLUGIN
extern "C" {
CV_PLUGIN_EXPORTS
const OpenCV_UI_Plugin_API* CV_API_CALL opencv_ui_plugin_init_v0
(int requested_abi_version, int requested_api_version, void* reserved /*NULL*/) CV_NOEXCEPT;
} // extern "C"
#else // BUILD_PLUGIN
typedef const OpenCV_UI_Plugin_API* (CV_API_CALL *FN_opencv_ui_plugin_init_t)
(int requested_abi_version, int requested_api_version, void* reserved /*NULL*/);
#endif // BUILD_PLUGIN
#endif // UI_PLUGIN_API_HPP
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