/*############################################################################
  # Copyright (C) 2005 Intel Corporation
  #
  # SPDX-License-Identifier: MIT
  ############################################################################*/

#ifndef __VAAPI_UTILS_H__
#define __VAAPI_UTILS_H__

#ifdef LIBVA_SUPPORT

    #include <va/va.h>
    #include <va/va_drmcommon.h>

    #if defined(LIBVA_DRM_SUPPORT)
        #include <intel_bufmgr.h>
        #include <va/va_drm.h>
        #include <xf86drm.h>
        #include <xf86drmMode.h>
    #endif
    #if defined(LIBVA_X11_SUPPORT)
        #include <va/va_x11.h>
        #if defined(X11_DRI3_SUPPORT)
            #include <xcb/dri3.h>
            #include <xcb/present.h>
        #endif // X11_DRI3_SUPPORT
    #endif
    #include "sample_defs.h"
    #include "sample_utils.h"
    #include "vm/thread_defs.h"

namespace MfxLoader {

class SimpleLoader {
public:
    SimpleLoader(const char* name);

    void* GetFunction(const char* name);

    ~SimpleLoader();

private:
    SimpleLoader(SimpleLoader&);
    void operator=(SimpleLoader&);

    void* so_handle;
};

    #ifdef LIBVA_SUPPORT
class VA_Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef VAStatus (*vaInitialize_type)(VADisplay, int*, int*);
    typedef VAStatus (*vaTerminate_type)(VADisplay);
    typedef VAStatus (*vaCreateSurfaces_type)(VADisplay,
                                              unsigned int,
                                              unsigned int,
                                              unsigned int,
                                              VASurfaceID*,
                                              unsigned int,
                                              VASurfaceAttrib*,
                                              unsigned int);
    typedef VAStatus (*vaDestroySurfaces_type)(VADisplay, VASurfaceID*, int);
    typedef VAStatus (*vaCreateBuffer_type)(VADisplay,
                                            VAContextID,
                                            VABufferType,
                                            unsigned int,
                                            unsigned int,
                                            void*,
                                            VABufferID*);
    typedef VAStatus (*vaDestroyBuffer_type)(VADisplay, VABufferID);
    typedef VAStatus (*vaMapBuffer_type)(VADisplay, VABufferID, void** pbuf);
    typedef VAStatus (*vaUnmapBuffer_type)(VADisplay, VABufferID);
    typedef VAStatus (*vaSyncSurface_type)(VADisplay, VASurfaceID);
    typedef VAStatus (*vaDeriveImage_type)(VADisplay, VASurfaceID, VAImage*);
    typedef VAStatus (*vaDestroyImage_type)(VADisplay, VAImageID);
    typedef VAStatus (*vaGetLibFunc_type)(VADisplay, const char* func);
    typedef VAStatus (*vaAcquireBufferHandle_type)(VADisplay, VABufferID, VABufferInfo*);
    typedef VAStatus (*vaReleaseBufferHandle_type)(VADisplay, VABufferID);
    typedef VAStatus (*vaMaxNumEntrypoints_type)(VADisplay dpy);
    typedef VAStatus (*vaQueryConfigEntrypoints_type)(VADisplay dpy,
                                                      VAProfile profile,
                                                      VAEntrypoint* entrypoint_list,
                                                      int* num_entrypoints);
    typedef VAStatus (*vaGetConfigAttributes_type)(VADisplay dpy,
                                                   VAProfile profile,
                                                   VAEntrypoint entrypoint,
                                                   VAConfigAttrib* attrib_list,
                                                   int num_attribs);
    typedef VAStatus (*vaCreateConfig_type)(VADisplay dpy,
                                            VAProfile profile,
                                            VAEntrypoint entrypoint,
                                            VAConfigAttrib* attrib_list,
                                            int num_attribs,
                                            VAConfigID* config_id);

    typedef VAStatus (*vaCreateContext_type)(VADisplay dpy,
                                             VAConfigID config_id,
                                             int picture_width,
                                             int picture_height,
                                             int flag,
                                             VASurfaceID* render_targets,
                                             int num_render_targets,
                                             VAContextID* context);
    typedef VAStatus (*vaDestroyConfig_type)(VADisplay dpy, VAConfigID config_id);
    typedef VAStatus (*vaDestroyContext_type)(VADisplay dpy, VAContextID context);

    VA_Proxy();
    ~VA_Proxy();

    const vaInitialize_type vaInitialize;
    const vaTerminate_type vaTerminate;
    const vaCreateSurfaces_type vaCreateSurfaces;
    const vaDestroySurfaces_type vaDestroySurfaces;
    const vaCreateBuffer_type vaCreateBuffer;
    const vaDestroyBuffer_type vaDestroyBuffer;
    const vaMapBuffer_type vaMapBuffer;
    const vaUnmapBuffer_type vaUnmapBuffer;
    const vaSyncSurface_type vaSyncSurface;
    const vaDeriveImage_type vaDeriveImage;
    const vaDestroyImage_type vaDestroyImage;
    const vaGetLibFunc_type vaGetLibFunc;
    const vaAcquireBufferHandle_type vaAcquireBufferHandle;
    const vaReleaseBufferHandle_type vaReleaseBufferHandle;
    const vaMaxNumEntrypoints_type vaMaxNumEntrypoints;
    const vaQueryConfigEntrypoints_type vaQueryConfigEntrypoints;
    const vaGetConfigAttributes_type vaGetConfigAttributes;
    const vaCreateConfig_type vaCreateConfig;
    const vaCreateContext_type vaCreateContext;
    const vaDestroyConfig_type vaDestroyConfig;
    const vaDestroyContext_type vaDestroyContext;
};
    #endif

    #if defined(LIBVA_DRM_SUPPORT)
class DRM_Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef int (*drmIoctl_type)(int fd, unsigned long request, void* arg);
    typedef int (*drmModeAddFB_type)(int fd,
                                     uint32_t width,
                                     uint32_t height,
                                     uint8_t depth,
                                     uint8_t bpp,
                                     uint32_t pitch,
                                     uint32_t bo_handle,
                                     uint32_t* buf_id);
    typedef int (*drmModeAddFB2WithModifiers_type)(int fd,
                                                   uint32_t width,
                                                   uint32_t height,
                                                   uint32_t pixel_format,
                                                   uint32_t bo_handles[4],
                                                   uint32_t pitches[4],
                                                   uint32_t offsets[4],
                                                   uint64_t modifier[4],
                                                   uint32_t* buf_id,
                                                   uint32_t flags);
    typedef void (*drmModeFreeConnector_type)(drmModeConnectorPtr ptr);
    typedef void (*drmModeFreeCrtc_type)(drmModeCrtcPtr ptr);
    typedef void (*drmModeFreeEncoder_type)(drmModeEncoderPtr ptr);
    typedef void (*drmModeFreePlane_type)(drmModePlanePtr ptr);
    typedef void (*drmModeFreePlaneResources_type)(drmModePlaneResPtr ptr);
    typedef void (*drmModeFreeResources_type)(drmModeResPtr ptr);
    typedef drmModeConnectorPtr (*drmModeGetConnector_type)(int fd, uint32_t connectorId);
    typedef drmModeCrtcPtr (*drmModeGetCrtc_type)(int fd, uint32_t crtcId);
    typedef drmModeEncoderPtr (*drmModeGetEncoder_type)(int fd, uint32_t encoder_id);
    typedef drmModePlanePtr (*drmModeGetPlane_type)(int fd, uint32_t plane_id);
    typedef drmModePlaneResPtr (*drmModeGetPlaneResources_type)(int fd);
    typedef drmModeResPtr (*drmModeGetResources_type)(int fd);
    typedef int (*drmModeRmFB_type)(int fd, uint32_t bufferId);
    typedef int (*drmModeSetCrtc_type)(int fd,
                                       uint32_t crtcId,
                                       uint32_t bufferId,
                                       uint32_t x,
                                       uint32_t y,
                                       uint32_t* connectors,
                                       int count,
                                       drmModeModeInfoPtr mode);
    typedef int (*drmSetMaster_type)(int fd);
    typedef int (*drmDropMaster_type)(int fd);
    typedef int (*drmModeSetPlane_type)(int fd,
                                        uint32_t plane_id,
                                        uint32_t crtc_id,
                                        uint32_t fb_id,
                                        uint32_t flags,
                                        int32_t crtc_x,
                                        int32_t crtc_y,
                                        uint32_t crtc_w,
                                        uint32_t crtc_h,
                                        uint32_t src_x,
                                        uint32_t src_y,
                                        uint32_t src_w,
                                        uint32_t src_h);

    DRM_Proxy();
    ~DRM_Proxy();

        #define __DECLARE(name) const name##_type name
    __DECLARE(drmIoctl);
    __DECLARE(drmModeAddFB);
    __DECLARE(drmModeAddFB2WithModifiers);
    __DECLARE(drmModeFreeConnector);
    __DECLARE(drmModeFreeCrtc);
    __DECLARE(drmModeFreeEncoder);
    __DECLARE(drmModeFreePlane);
    __DECLARE(drmModeFreePlaneResources);
    __DECLARE(drmModeFreeResources);
    __DECLARE(drmModeGetConnector);
    __DECLARE(drmModeGetCrtc);
    __DECLARE(drmModeGetEncoder);
    __DECLARE(drmModeGetPlane);
    __DECLARE(drmModeGetPlaneResources);
    __DECLARE(drmModeGetResources);
    __DECLARE(drmModeRmFB);
    __DECLARE(drmModeSetCrtc);
    __DECLARE(drmSetMaster);
    __DECLARE(drmDropMaster);
    __DECLARE(drmModeSetPlane);
        #undef __DECLARE
};

class DrmIntel_Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef drm_intel_bo* (*drm_intel_bo_gem_create_from_prime_type)(drm_intel_bufmgr* bufmgr,
                                                                     int prime_fd,
                                                                     int size);
    typedef void (*drm_intel_bo_unreference_type)(drm_intel_bo* bo);
    typedef drm_intel_bufmgr* (*drm_intel_bufmgr_gem_init_type)(int fd, int batch_size);
    typedef int (*drm_intel_bo_gem_export_to_prime_type)(drm_intel_bo*, int*);
    typedef void (*drm_intel_bufmgr_destroy_type)(drm_intel_bufmgr*);

    DrmIntel_Proxy();
    ~DrmIntel_Proxy();

        #define __DECLARE(name) const name##_type name
    __DECLARE(drm_intel_bo_gem_create_from_prime);
    __DECLARE(drm_intel_bo_unreference);
    __DECLARE(drm_intel_bufmgr_gem_init);
    __DECLARE(drm_intel_bufmgr_destroy);
        #if defined(X11_DRI3_SUPPORT)
    __DECLARE(drm_intel_bo_gem_export_to_prime);
        #endif

        #undef __DECLARE
};

class VA_DRMProxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef VADisplay (*vaGetDisplayDRM_type)(int);

    VA_DRMProxy();
    ~VA_DRMProxy();

    const vaGetDisplayDRM_type vaGetDisplayDRM;
};
    #endif

    #if defined(LIBVA_WAYLAND_SUPPORT)

class Wayland;

class VA_WaylandClientProxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef Wayland* (*WaylandCreate_type)(void);

    VA_WaylandClientProxy();
    ~VA_WaylandClientProxy();

    const WaylandCreate_type WaylandCreate;
};

    #endif // LIBVA_WAYLAND_SUPPORT

    #if defined(LIBVA_X11_SUPPORT)
class VA_X11Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef VADisplay (*vaGetDisplay_type)(Display*);
    typedef VAStatus (*vaPutSurface_type)(VADisplay,
                                          VASurfaceID,
                                          Drawable,
                                          short,
                                          short,
                                          unsigned short,
                                          unsigned short,
                                          short,
                                          short,
                                          unsigned short,
                                          unsigned short,
                                          VARectangle*,
                                          unsigned int,
                                          unsigned int);

    VA_X11Proxy();
    ~VA_X11Proxy();

    const vaGetDisplay_type vaGetDisplay;
    const vaPutSurface_type vaPutSurface;
};

class XLib_Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef Display* (*XOpenDisplay_type)(const char*);
    typedef int (*XCloseDisplay_type)(Display*);
    typedef Window (*XCreateSimpleWindow_type)(Display*,
                                               Window,
                                               int,
                                               int,
                                               unsigned int,
                                               unsigned int,
                                               unsigned int,
                                               unsigned long,
                                               unsigned long);
    typedef int (*XMapWindow_type)(Display*, Window);
    typedef int (*XSync_type)(Display*, Bool);
    typedef int (*XDestroyWindow_type)(Display*, Window);
    typedef int (*XResizeWindow_type)(Display*, Window, unsigned int, unsigned int);
        #if defined(X11_DRI3_SUPPORT)
    typedef Status (*XGetGeometry_type)(Display*,
                                        Drawable,
                                        Window*,
                                        int*,
                                        int*,
                                        unsigned int*,
                                        unsigned int*,
                                        unsigned int*,
                                        unsigned int*);
        #endif // X11_DRI3_SUPPORT
    XLib_Proxy();
    ~XLib_Proxy();

    const XOpenDisplay_type XOpenDisplay;
    const XCloseDisplay_type XCloseDisplay;
    const XCreateSimpleWindow_type XCreateSimpleWindow;
    const XMapWindow_type XMapWindow;
    const XSync_type XSync;
    const XDestroyWindow_type XDestroyWindow;
    const XResizeWindow_type XResizeWindow;
        #if defined(X11_DRI3_SUPPORT)
    const XGetGeometry_type XGetGeometry;
        #endif // X11_DRI3_SUPPORT
};

        #if defined(X11_DRI3_SUPPORT)

class XCB_Dri3_Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef xcb_void_cookie_t (*xcb_dri3_pixmap_from_buffer_type)(xcb_connection_t*,
                                                                  xcb_pixmap_t,
                                                                  xcb_drawable_t,
                                                                  uint32_t,
                                                                  uint16_t,
                                                                  uint16_t,
                                                                  uint16_t,
                                                                  uint8_t,
                                                                  uint8_t,
                                                                  int32_t);
    typedef xcb_dri3_pixmap_from_buffer_type xcb_dri3_pixmap_from_buffer_checked_type;

    XCB_Dri3_Proxy();
    ~XCB_Dri3_Proxy();

    const xcb_dri3_pixmap_from_buffer_checked_type xcb_dri3_pixmap_from_buffer_checked;
};

class Xcb_Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef uint32_t (*xcb_generate_id_type)(xcb_connection_t*);
    typedef xcb_void_cookie_t (*xcb_free_pixmap_type)(xcb_connection_t*, xcb_pixmap_t);
    typedef int (*xcb_flush_type)(xcb_connection_t*);
    typedef xcb_generic_error_t* (*xcb_request_check_type)(xcb_connection_t* c,
                                                           xcb_void_cookie_t cookie);

    Xcb_Proxy();
    ~Xcb_Proxy();

    const xcb_generate_id_type xcb_generate_id;
    const xcb_free_pixmap_type xcb_free_pixmap;
    const xcb_flush_type xcb_flush;
    const xcb_request_check_type xcb_request_check;
};

class X11_Xcb_Proxy {
private:
    SimpleLoader lib; // should appear first in member list

public:
    typedef xcb_connection_t* (*XGetXCBConnection_type)(Display* dpy);

    X11_Xcb_Proxy();
    ~X11_Xcb_Proxy();

    const XGetXCBConnection_type XGetXCBConnection;
};

class Xcbpresent_Proxy {
private:
    SimpleLoader lib;

public:
    typedef xcb_void_cookie_t (*xcb_present_pixmap_type)(xcb_connection_t*,
                                                         xcb_window_t,
                                                         xcb_pixmap_t,
                                                         uint32_t,
                                                         xcb_xfixes_region_t,
                                                         xcb_xfixes_region_t,
                                                         int16_t,
                                                         int16_t,
                                                         xcb_randr_crtc_t,
                                                         xcb_sync_fence_t,
                                                         xcb_sync_fence_t,
                                                         uint32_t,
                                                         uint64_t,
                                                         uint64_t,
                                                         uint64_t,
                                                         uint32_t,
                                                         const xcb_present_notify_t*);
    typedef xcb_present_pixmap_type xcb_present_pixmap_checked_type;

    Xcbpresent_Proxy();
    ~Xcbpresent_Proxy();

    const xcb_present_pixmap_checked_type xcb_present_pixmap_checked;
};

        #endif // X11_DRI3_SUPPORT
    #endif

} // namespace MfxLoader

class CLibVA {
public:
    virtual ~CLibVA(void){};

    VAStatus AcquireVASurface(void** pctx,
                              VADisplay dpy1,
                              VASurfaceID srf1,
                              VADisplay dpy2,
                              VASurfaceID* srf2);
    void ReleaseVASurface(void* actx,
                          VADisplay dpy1,
                          VASurfaceID /*srf1*/,
                          VADisplay dpy2,
                          VASurfaceID srf2);

    inline int getBackendType() {
        return m_type;
    }
    VADisplay GetVADisplay() {
        return m_va_dpy;
    }
    const MfxLoader::VA_Proxy m_libva;

protected:
    CLibVA(int type) : m_type(type), m_va_dpy(NULL) {}
    int m_type;
    VADisplay m_va_dpy;

private:
    DISALLOW_COPY_AND_ASSIGN(CLibVA);
};

CLibVA* CreateLibVA(const std::string& devicePath = "", int type = MFX_LIBVA_DRM);

// compatibility with some old tools/val-tools
CLibVA* CreateLibVA(int type);

VAStatus AcquireVASurface(void** ctx,
                          VADisplay dpy1,
                          VASurfaceID srf1,
                          VADisplay dpy2,
                          VASurfaceID* srf2);
void ReleaseVASurface(void* actx,
                      VADisplay dpy1,
                      VASurfaceID srf1,
                      VADisplay dpy2,
                      VASurfaceID srf2);

mfxStatus va_to_mfx_status(VAStatus va_res);

#endif // #ifdef LIBVA_SUPPORT

#endif // #ifndef __VAAPI_UTILS_H__
