copy chagnes from 5.0.0 to enhance DRM engine to support PROCS runmode

include/gdi.h

@@ -13734,14 +13734,18 @@ MG_EXPORT int drmGetDeviceFD (GHANDLE video);
  * THe struct type defines the DRM surface information.
  */
 typedef struct _DrmSurfaceInfo {
-    /** The prime fd of the buffer object. */
-    int prime_fd;
-    /** The global name of the buffer object. */
-    uint32_t name;
     /** The local handle of the buffer object. */
     uint32_t handle;
-    /** The buffer identifier. */
+    /** The prime fd of the buffer object. If it was no exported as a global
-    uint32_t id;
+     buffer object, it has the value -1. */
+    int prime_fd;
+    /** The global name of the buffer object. It has the value 0 when it was
+        not expored as global buffer object. */
+    uint32_t name;
+    /** The frame buffer identifier. If the buffer was not added as
+        a frame buffer to the system, it has the value 0. */
+    uint32_t fb_id;
+
     /** The width of the surface. */
     uint32_t width;
     /** The height of the surface. */
@@ -13751,7 +13755,9 @@ typedef struct _DrmSurfaceInfo {
     /** The DRM pixel format. */
     uint32_t drm_format;
     /** Size in bytes of the buffer object. */
-    unsigned long size;
+    size_t size;
+    /** The offset from the buffer start to the real pixel data. */
+    off_t offset;
 } DrmSurfaceInfo;
 
 /**
@@ -13773,15 +13779,24 @@ MG_EXPORT BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info);
  * \param video The video handle.
  * \param name The name handle of the DRM surface.
  * \param drm_format The DRM pixel format.
+ * \param offset The offset from the buffer start to the real pixel data.
  * \param width The width of the DRM surface.
  * \param height The height of the DRM surface.
  * \param pitch The pitch (row stride) of the DRM surface.
  *
  * \return The handle to the memory DC for success, HDC_INVALID for failure.
  */
-MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
+MG_EXPORT HDC drmCreateDCFromNameEx (GHANDLE video,
-            uint32_t name, uint32_t drm_format,
+        uint32_t name, uint32_t drm_format, off_t offset,
-            unsigned int width, unsigned int height, uint32_t pitch);
+        uint32_t width, uint32_t height, uint32_t pitch);
+
+static inline HDC drmCreateDCFromName (GHANDLE video,
+        uint32_t name, uint32_t drm_format,
+        uint32_t width, uint32_t height, uint32_t pitch)
+{
+    return drmCreateDCFromNameEx (video,
+        name, drm_format, 0, width, height, pitch);
+}
 
 /**
  * This function creates a memory DC with a DRM surface which is created by
@@ -13791,15 +13806,24 @@ MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
  * \param prime_fd The PRIME file descriptor.
  * \param size The size of the DRM surface in bytes.
  * \param drm_format The DRM pixel format.
+ * \param offset The offset from the buffer start to the real pixel data.
  * \param width The width of the DRM surface.
  * \param height The height of the DRM surface.
  * \param pitch The pitch (row stride) of the DRM surface.
  *
  * \return The handle to the memory DC for success, HDC_INVALID for failure.
  */
-MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
+MG_EXPORT HDC drmCreateDCFromPrimeFdEx (GHANDLE video,
-            int prime_fd, unsigned long size, uint32_t drm_format,
+        int prime_fd, size_t size, uint32_t drm_format, off_t offset,
-            unsigned int width, unsigned int height, uint32_t pitch);
+        uint32_t width, uint32_t height, uint32_t pitch);
+
+static inline HDC drmCreateDCFromPrimeFd (GHANDLE video,
+        int prime_fd, size_t size, uint32_t drm_format,
+        uint32_t width, uint32_t height, uint32_t pitch)
+{
+    return drmCreateDCFromPrimeFdEx (video,
+        prime_fd, size, drm_format, 0, width, height, pitch);
+}
 
 /**
  * This function creates a memory DC with a DRM surface which is created by
@@ -13809,15 +13833,24 @@ MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
  * \param handle The handle of the DRM surface.
  * \param size The size of the DRM surface in bytes.
  * \param drm_format The DRM pixel format.
+ * \param offset The offset from the buffer start to the real pixel data.
  * \param width The width of the DRM surface.
  * \param height The height of the DRM surface.
  * \param pitch The pitch (row stride) of the DRM surface.
  *
  * \return The handle to the memory DC for success, HDC_INVALID for failure.
  */
-MG_EXPORT HDC drmCreateDCFromHandle (GHANDLE video,
+MG_EXPORT HDC drmCreateDCFromHandleEx (GHANDLE video,
-            uint32_t handle, unsigned long size, uint32_t drm_format,
+        uint32_t handle, size_t size, uint32_t drm_format, off_t offset,
-            unsigned int width, unsigned int height, uint32_t pitch);
+        uint32_t width, uint32_t height, uint32_t pitch);
+
+static inline HDC drmCreateDCFromHandle (GHANDLE video,
+        uint32_t handle, size_t size, uint32_t drm_format,
+        uint32_t width, uint32_t height, uint32_t pitch)
+{
+    return drmCreateDCFromHandleEx (video,
+        handle, size, drm_format, 0, width, height, pitch);
+}
 
 /** @} end of gdi_drm_fns */
 

src/include/client.h

@@ -95,12 +95,31 @@
 #define REQID_GETIMEPOS        0x0019
 #define REQID_SETIMEPOS        0x001A
 
-#define REQID_COPYCURSOR        0x001B
+#define REQID_COPYCURSOR       0x001B
+
+// Since 4.0.7: Authenticate client
+#define REQID_AUTHCLIENT       0x001C
+
+// Since 4.0.7: Get shared surface
+#define REQID_GETSHAREDSURFACE      0x001D
+    // for sharedfb schema
+    #define SYSSF_REAL_SCREEN           "syssf-real-screen"
 
 /*
- * XXX: To fellows who need to add a new REQID, please make sure your new ID _less_ than MAX_SYS_REQID (defined in /include/minigui.h).
+ * XXX: To fellows who need to add a new REQID, please make sure your
+ * new ID _less_ than MAX_SYS_REQID (defined in /include/minigui.h).
  */
 
+/* Since 4.0.7 */
+typedef struct _SharedSurfInfo {
+    uint32_t    flags;      // the flags of the surface
+    uint32_t    width, height;
+    uint32_t    pitch;
+    uint32_t    name;       // when use flink name
+    uint32_t    drm_format; // DRM pixel format
+    size_t      size;       // whole size of the surface
+    off_t       offset;     // offset of pixel data
+} SHAREDSURFINFO;
 
 typedef struct JoinLayerInfo
 {

src/include/newgal.h

@@ -757,7 +757,7 @@ extern GAL_Surface* __gal_screen;
 #define GAL_BMask(surface)          (surface->format->Bmask)
 #define GAL_AMask(surface)          (surface->format->Amask)
 
-extern int mg_InitGAL (void);
+extern int mg_InitGAL (char* engine, char* mode);
 
 /* Since 4.0.0; suspend/resume video device, for switching virtual terminals */
 extern int GAL_SuspendVideo(void);
@@ -778,6 +778,29 @@ extern BYTE*  gal_PutPixelKeyAlpha (GAL_Surface* dst,
 
 #define mg_TerminateGAL GAL_VideoQuit
 
+#ifdef _MGRM_PROCESSES
+/* Since 4.0.7: copy video information to the shared resource segment */
+BOOL GAL_CopyVideoInfoToSharedRes (void);
+#endif  /* _MGRM_PROCESSES */
+
+#ifdef _MGGAL_DRM
+/* functions implemented in DRM engine. */
+BOOL __drm_get_surface_info (GAL_Surface *surface, DrmSurfaceInfo* info);
+int __drm_auth_client (int, uint32_t);
+
+GAL_Surface* __drm_create_surface_from_name (GHANDLE video,
+        uint32_t name, uint32_t drm_format, uint32_t pixels_off,
+        uint32_t width, uint32_t height, uint32_t pitch);
+
+GAL_Surface* __drm_create_surface_from_handle (GHANDLE video,
+        uint32_t handle, size_t size, uint32_t drm_format, uint32_t pixels_off,
+        uint32_t width, uint32_t height, uint32_t pitch);
+
+GAL_Surface* __drm_create_surface_from_prime_fd (GHANDLE video,
+        int prime_fd, size_t size, uint32_t drm_format, uint32_t pixels_off,
+        uint32_t width, uint32_t height, uint32_t pitch);
+#endif /* defined _MGGAL_DRM */
+
 #ifdef __cplusplus
 }
 #endif  /* __cplusplus */

src/include/sharedres.h

@@ -88,10 +88,30 @@ inline static key_t get_sem_key_for_layers (void)
     return (key_t)(IPC_KEY_BASE + 0x03);
 }
 
+/* constants for engine name and video mode */
+#define LEN_SO_NAME         127 // name length of a shared object (library)
+#define LEN_DEVICE_NAME     127
+#define LEN_EXDRIVER_NAME   LEN_SO_NAME
+#define LEN_ENGINE_NAME     23
+#define LEN_VIDEO_MODE      31
+#define LEN_MTYPE_NAME      23
+#define LEN_FOURCC_FORMAT   7
+
 typedef struct tagG_RES {
     int semid;
     int shmid;
 
+    /* information of NEWGAL engine; since 4.0.7 */
+    char video_engine [LEN_ENGINE_NAME + 1];
+    char video_mode [LEN_VIDEO_MODE + 1];
+    char video_device [LEN_DEVICE_NAME + 1];
+    int  video_dpi, video_hres, video_vres, video_depth;
+    Uint32 video_rmask, video_gmask, video_bmask, video_amask;
+#ifdef _MGGAL_DRM
+    char video_exdriver [LEN_EXDRIVER_NAME + 1];
+    Uint32 video_drm_format;
+#endif
+
     int nr_layers;
     int semid_layer;
 
@@ -150,6 +170,23 @@ typedef struct tagG_RES {
 } G_RES;
 typedef G_RES* PG_RES;
 
+#define SHAREDRES_VIDEO_ENGINE      (((PG_RES)mgSharedRes)->video_engine)
+#define SHAREDRES_VIDEO_MODE        (((PG_RES)mgSharedRes)->video_mode)
+#define SHAREDRES_VIDEO_DEVICE      (((PG_RES)mgSharedRes)->video_device)
+#define SHAREDRES_VIDEO_DPI         (((PG_RES)mgSharedRes)->video_dpi)
+#define SHAREDRES_VIDEO_HRES        (((PG_RES)mgSharedRes)->video_hres)
+#define SHAREDRES_VIDEO_VRES        (((PG_RES)mgSharedRes)->video_vres)
+#define SHAREDRES_VIDEO_DEPTH       (((PG_RES)mgSharedRes)->video_depth)
+#define SHAREDRES_VIDEO_RMASK       (((PG_RES)mgSharedRes)->video_rmask)
+#define SHAREDRES_VIDEO_GMASK       (((PG_RES)mgSharedRes)->video_gmask)
+#define SHAREDRES_VIDEO_BMASK       (((PG_RES)mgSharedRes)->video_bmask)
+#define SHAREDRES_VIDEO_AMASK       (((PG_RES)mgSharedRes)->video_amask)
+
+#ifdef _MGGAL_DRM
+#define SHAREDRES_VIDEO_EXDRIVER    (((PG_RES)mgSharedRes)->video_exdriver)
+#define SHAREDRES_VIDEO_DRM_FORMAT  (((PG_RES)mgSharedRes)->video_drm_format)
+#endif
+
 #define SHAREDRES_TIMER_COUNTER (((PG_RES)mgSharedRes)->timer_counter)
 #define SHAREDRES_TICK_ON_LOCKSEM  (((PG_RES)mgSharedRes)->tick_on_locksem)
 #define SHAREDRES_TIMEOUT       (((PG_RES)mgSharedRes)->timeout)

src/kernel/init-lite.c

@@ -108,6 +108,8 @@ void kernel_ShowCursorForGDI(BOOL fShow, void* pdc)
 
 int InitGUI (int argc, const char* agr[])
 {
+    char engine [LEN_ENGINE_NAME + 1];
+    char mode [LEN_VIDEO_MODE + 1];
     int step = 1;
 
     __mg_quiting_stage = _MG_QUITING_STAGE_RUNNING;
@@ -135,7 +137,7 @@ int InitGUI (int argc, const char* agr[])
     step++;
 
     /* Init GAL engine. */
-    switch (mg_InitGAL ()) {
+    switch (mg_InitGAL (engine, mode)) {
     case ERR_CONFIG_FILE:
         err_message (step, "Reading configuration failure!");
         return step;
@@ -302,6 +304,8 @@ static BOOL InstallSEGVHandler (void)
 
 int InitGUI (int argc, const char* agr[])
 {
+    char engine [LEN_ENGINE_NAME + 1];
+    char mode [LEN_VIDEO_MODE + 1];
     int step = 1;
 
     __mg_quiting_stage = _MG_QUITING_STAGE_RUNNING;
@@ -379,7 +383,7 @@ int InitGUI (int argc, const char* agr[])
 #endif
 
     /* Init GAL engine. */
-    switch (mg_InitGAL ()) {
+    switch (mg_InitGAL (engine, mode)) {
     case ERR_CONFIG_FILE:
         err_message (step, "Reading configuration failure!");
         return step;
@@ -444,6 +448,22 @@ int InitGUI (int argc, const char* agr[])
         }
         atexit (kernel_UnloadSharedResource);
         SHAREDRES_TERMIOS = savedtermio;
+
+        /* Since 4.0.7
+         * Copy the video engine information to the shared resource segement
+         */
+        strncpy (SHAREDRES_VIDEO_ENGINE, engine, LEN_ENGINE_NAME);
+        strncpy (SHAREDRES_VIDEO_MODE, mode, LEN_VIDEO_MODE);
+        SHAREDRES_VIDEO_DPI   = __gal_screen->dpi;
+        SHAREDRES_VIDEO_HRES  = __gal_screen->w;
+        SHAREDRES_VIDEO_VRES  = __gal_screen->h;
+        SHAREDRES_VIDEO_DEPTH = __gal_screen->format->BitsPerPixel;
+        SHAREDRES_VIDEO_RMASK = __gal_screen->format->Rmask;
+        SHAREDRES_VIDEO_GMASK = __gal_screen->format->Gmask;
+        SHAREDRES_VIDEO_BMASK = __gal_screen->format->Bmask;
+        SHAREDRES_VIDEO_AMASK = __gal_screen->format->Amask;
+
+        GAL_CopyVideoInfoToSharedRes();
     }
 
     step++;

src/newgal/drm/drmvideo.h

@@ -15,7 +15,7 @@
  *   and Graphics User Interface (GUI) support system for embedded systems
  *   and smart IoT devices.
  *
- *   Copyright (C) 2019, Beijing FMSoft Technologies Co., Ltd.
+ *   Copyright (C) 2019 ~ 2020, Beijing FMSoft Technologies Co., Ltd.
  *
  *   This program is free software: you can redistribute it and/or modify
  *   it under the terms of the GNU General Public License as published by
@@ -55,13 +55,18 @@
 
 /* Private display data */
 
-#define LEN_DEVICE_NAME     31
-
 typedef struct drm_mode_info DrmModeInfo;
 
 typedef struct GAL_PrivateVideoData {
-    char            dev_name[LEN_DEVICE_NAME + 1];
+    char*           dev_name;
+    char*           ex_driver;
+    GAL_Surface*    real_screen;
     int             dev_fd;
+    /* capabilities */
+    uint32_t        scanout_buff_id;
+    /* the global names of real screen and shadow screen */
+    uint32_t        real_name;
+    uint32_t        cap_dumb:1;
 
     void*           exdrv_handle;
     DrmDriverOps*   driver_ops;
@@ -70,23 +75,8 @@ typedef struct GAL_PrivateVideoData {
     DrmModeInfo*    mode_list;
     GAL_Rect**      modes;
 
-    int             bpp;
-    uint32_t        width;
-    uint32_t        height;
-    uint32_t        pitch;
-    uint32_t        size;
-
-    uint32_t        scanout_buff_id;
-    uint8_t*        scanout_fb;
-
     DrmModeInfo*    saved_info;
     drmModeCrtc*    saved_crtc;
-
-    /* only valid when using DUMB frame buffer */
-    uint32_t        handle;
-
-    /* only valid when using DRM driver */
-    uint32_t        console_buff_id;
 } DrmVideoData;
 
 #endif /* _NEWGAL_DRIVIDEO_H */

src/newgal/newgal.c

@@ -87,12 +87,10 @@ BOOL GAL_ParseVideoMode (const char* mode, int* w, int* h, int* depth)
     return TRUE;
 }
 
-int mg_InitGAL (void)
+int mg_InitGAL (char* engine, char* mode)
 {
     int i;
     int w, h, depth;
-    char engine [LEN_ENGINE_NAME + 1];
-    char mode [LEN_MODE + 1];
 
 #if defined (WIN32) || !defined(__NOUNIX__)
 	char* env_value;

src/newgal/sysvideo.h

@@ -102,10 +102,10 @@ struct GAL_VideoDevice {
     GAL_Surface *(*SetVideoMode)(_THIS, GAL_Surface *current,
                 int width, int height, int bpp, Uint32 flags);
 
+#if 0
     /* Toggle the fullscreen mode */
     int (*ToggleFullScreen)(_THIS, int on);
 
-#if 0
     /* This is called after the video mode has been set, to get the
        initial mouse state.  It should queue events as necessary to
        properly represent the current mouse focus and position.
@@ -141,6 +141,8 @@ struct GAL_VideoDevice {
     GAL_VideoInfo info;
 
 #ifndef _MGRM_THREADS
+    /* Copy video information to shared resource segment */
+    void (*CopyVideoInfoToSharedRes)(_THIS);
     /* Request a surface in video memory */
     void (*RequestHWSurface)(_THIS, const REQ_HWSURFACE* request, REP_HWSURFACE* reply);
 #endif

src/newgal/video.c

@@ -1406,3 +1406,15 @@ int GAL_SuspendVideo(void)
     return 0;
 }
 
+#ifdef _MGRM_PROCESSES
+BOOL GAL_CopyVideoInfoToSharedRes (void)
+{
+    if (__mg_current_video && __mg_current_video->CopyVideoInfoToSharedRes) {
+        __mg_current_video->CopyVideoInfoToSharedRes(__mg_current_video);
+        return TRUE;
+    }
+
+    return FALSE;
+}
+#endif  /* _MGRM_PROCESSES */
+

src/newgdi/gdi.c

@@ -3754,10 +3754,7 @@ MG_EXPORT GHANDLE GetVideoHandle (HDC hdc)
 
 #ifdef _MGGAL_DRM
 
-/* implemented in DRI engine. */
+BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info)
-BOOL __drm_get_surface_info (GAL_Surface *surface, DrmSurfaceInfo* info);
-
-MG_EXPORT BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info)
 {
     PDC pdc = dc_HDC2PDC (hdc);
     if (pdc->surface->video != (GHANDLE)video)
@@ -3766,14 +3763,8 @@ MG_EXPORT BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info)
     return __drm_get_surface_info(pdc->surface, info);
 }
 
-/* implemented in DRI engine. */
+HDC drmCreateDCFromNameEx (GHANDLE video, uint32_t name, uint32_t drm_format,
-GAL_Surface* __drm_create_surface_from_name (GHANDLE video,
+        off_t offset, uint32_t width, uint32_t height, uint32_t pitch)
-            uint32_t name, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch);
-
-MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
-            uint32_t name, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch)
 {
     PDC pmem_dc = NULL;
     GAL_Surface* surface;
@@ -3783,7 +3774,7 @@ MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
 
     LOCK (&__mg_gdilock);
     surface = __drm_create_surface_from_name (video, name,
-                drm_format, width, height, pitch);
+            drm_format, offset, width, height, pitch);
     UNLOCK (&__mg_gdilock);
 
     if (!surface) {
@@ -3797,16 +3788,14 @@ MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
 
     pmem_dc->DataType = TYPE_HDC;
     pmem_dc->DCType   = TYPE_MEMDC;
-    pmem_dc->inuse    = TRUE;
+    pmem_dc->inuse   = TRUE;
     pmem_dc->surface  = surface;
 
-    dc_InitDC (pmem_dc, HWND_DESKTOP, FALSE);
+    dc_InitDC (pmem_dc, HWND_NULL, FALSE);
 
     InitClipRgn (&pmem_dc->lcrgn, &__mg_FreeClipRectList);
     MAKE_REGION_INFINITE(&pmem_dc->lcrgn);
     InitClipRgn (&pmem_dc->ecrgn, &__mg_FreeClipRectList);
-    pmem_dc->pGCRInfo = NULL;
-    pmem_dc->oldage = 0;
 
     pmem_dc->DevRC.left = 0;
     pmem_dc->DevRC.top  = 0;
@@ -3819,14 +3808,9 @@ MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
     return (HDC)pmem_dc;
 }
 
-/* implemented in DRI engine. */
+HDC drmCreateDCFromHandleEx (GHANDLE video, uint32_t handle, size_t size,
-GAL_Surface* __drm_create_surface_from_handle (GHANDLE video,
+        uint32_t drm_format, off_t offset,
-            uint32_t handle, unsigned long size, uint32_t drm_format,
+        uint32_t width, uint32_t height, uint32_t pitch)
-            unsigned int width, unsigned int height, uint32_t pitch);
-
-MG_EXPORT HDC drmCreateDCFromHandle (GHANDLE video,
-            uint32_t handle, unsigned long size, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch)
 {
     PDC pmem_dc = NULL;
     GAL_Surface* surface;
@@ -3836,7 +3820,7 @@ MG_EXPORT HDC drmCreateDCFromHandle (GHANDLE video,
 
     LOCK (&__mg_gdilock);
     surface = __drm_create_surface_from_handle (video, handle, size,
-                drm_format, width, height, pitch);
+                drm_format, offset, width, height, pitch);
     UNLOCK (&__mg_gdilock);
 
     if (!surface) {
@@ -3850,16 +3834,14 @@ MG_EXPORT HDC drmCreateDCFromHandle (GHANDLE video,
 
     pmem_dc->DataType = TYPE_HDC;
     pmem_dc->DCType   = TYPE_MEMDC;
-    pmem_dc->inuse    = TRUE;
+    pmem_dc->inuse   = TRUE;
     pmem_dc->surface  = surface;
 
-    dc_InitDC (pmem_dc, HWND_DESKTOP, FALSE);
+    dc_InitDC (pmem_dc, HWND_NULL, FALSE);
 
     InitClipRgn (&pmem_dc->lcrgn, &__mg_FreeClipRectList);
     MAKE_REGION_INFINITE(&pmem_dc->lcrgn);
     InitClipRgn (&pmem_dc->ecrgn, &__mg_FreeClipRectList);
-    pmem_dc->pGCRInfo = NULL;
-    pmem_dc->oldage = 0;
 
     pmem_dc->DevRC.left = 0;
     pmem_dc->DevRC.top  = 0;
@@ -3872,14 +3854,9 @@ MG_EXPORT HDC drmCreateDCFromHandle (GHANDLE video,
     return (HDC)pmem_dc;
 }
 
-/* implemented in DRI engine. */
+HDC drmCreateDCFromPrimeFdEx (GHANDLE video, int prime_fd, size_t size,
-GAL_Surface* __drm_create_surface_from_prime_fd (GHANDLE video,
+        uint32_t drm_format, off_t offset,
-            int prime_fd, unsigned long size, uint32_t drm_format,
+        uint32_t width, uint32_t height, uint32_t pitch)
-            unsigned int width, unsigned int height, uint32_t pitch);
-
-MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
-            int prime_fd, unsigned long size, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch)
 {
     PDC pmem_dc = NULL;
     GAL_Surface* surface;
@@ -3887,9 +3864,12 @@ MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
     if (!(pmem_dc = malloc (sizeof(DC))))
         return HDC_INVALID;
 
+    if (size == 0) {
+    }
+
     LOCK (&__mg_gdilock);
     surface =__drm_create_surface_from_prime_fd (video, prime_fd, size,
-                drm_format, width, height, pitch);
+            drm_format, offset, width, height, pitch);
     UNLOCK (&__mg_gdilock);
 
     if (!surface) {
@@ -3903,16 +3883,14 @@ MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
 
     pmem_dc->DataType = TYPE_HDC;
     pmem_dc->DCType   = TYPE_MEMDC;
-    pmem_dc->inuse    = TRUE;
+    pmem_dc->inuse   = TRUE;
     pmem_dc->surface  = surface;
 
-    dc_InitDC (pmem_dc, HWND_DESKTOP, FALSE);
+    dc_InitDC (pmem_dc, HWND_NULL, FALSE);
 
     InitClipRgn (&pmem_dc->lcrgn, &__mg_FreeClipRectList);
     MAKE_REGION_INFINITE(&pmem_dc->lcrgn);
     InitClipRgn (&pmem_dc->ecrgn, &__mg_FreeClipRectList);
-    pmem_dc->pGCRInfo = NULL;
-    pmem_dc->oldage = 0;
 
     pmem_dc->DevRC.left = 0;
     pmem_dc->DevRC.top  = 0;
@@ -3925,4 +3903,4 @@ MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
     return (HDC)pmem_dc;
 }
 
-#endif
+#endif  /* _MGGAL_DRM */

src/server/request.c

@@ -601,6 +601,34 @@ static int req_hw_surface (int cli, int clifd, void* buff, size_t len)
 extern int clipboard_op (int cli, int clifd, void* buff, size_t len);
 #endif
 
+static int authenticate_client (int cli, int clifd, void* buff, size_t len)
+{
+    int auth_result = 1;
+
+#ifdef _MGGAL_DRM
+    uint32_t magic;
+    extern int __drm_auth_client(int, uint32_t);
+    magic = *(uint32_t*)buff;
+    auth_result = __drm_auth_client (cli, magic);
+#endif
+
+    return ServerSendReply (clifd, &auth_result, sizeof (int));
+}
+
+/* get the rendering surface */
+static int get_shared_surface (int cli, int clifd, void* buff, size_t len)
+{
+    SHAREDSURFINFO info = { 0, 0 };
+
+#ifdef _MGGAL_DRM
+    const char* name = buff;
+    extern int __drm_get_shared_screen_surface (const char*, SHAREDSURFINFO*);
+    __drm_get_shared_screen_surface (name, &info);
+#endif
+
+    return ServerSendReply (clifd, &info, sizeof (SHAREDSURFINFO));
+}
+
 static REQ_HANDLER handlers [MAX_REQID] =
 {
     load_cursor,
@@ -646,6 +674,8 @@ static REQ_HANDLER handlers [MAX_REQID] =
     get_ime_targetinfo,
     set_ime_targetinfo,
     copy_cursor,
+    authenticate_client,
+    get_shared_surface,
 };
 
 BOOL GUIAPI RegisterRequestHandler (int req_id, REQ_HANDLER your_handler)