change default exdriver for DRM engine: libhidrmdrivers-0.2.so.0

Doxyfile.procs

@@ -38,7 +38,7 @@ PROJECT_NAME           = "MiniGUI API Reference (MiniGUI-Processes)"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v4.0.4
+PROJECT_NUMBER         = v4.0.7
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = doc-api-ref-minigui-procs-4.0.4
+OUTPUT_DIRECTORY       = doc-api-ref-minigui-procs-4.0.7
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and

Doxyfile.sal

@@ -38,7 +38,7 @@ PROJECT_NAME           = "MiniGUI API Reference (MiniGUI-Standalone)"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v4.0.4
+PROJECT_NUMBER         = v4.0.7
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = doc-api-ref-minigui-sa-4.0.4
+OUTPUT_DIRECTORY       = doc-api-ref-minigui-sa-4.0.7
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and

Doxyfile.ths

@@ -38,7 +38,7 @@ PROJECT_NAME           = "MiniGUI API Reference (MiniGUI-Threads)"
 # could be handy for archiving the generated documentation or if some version
 # control system is used.
 
-PROJECT_NUMBER         = v4.0.4
+PROJECT_NUMBER         = v4.0.7
 
 # Using the PROJECT_BRIEF tag one can provide an optional one line description
 # for a project that appears at the top of each page and should give viewer a
@@ -58,7 +58,7 @@ PROJECT_LOGO           =
 # entered, it will be relative to the location where doxygen was started. If
 # left blank the current directory will be used.
 
-OUTPUT_DIRECTORY       = doc-api-ref-minigui-ths-4.0.4
+OUTPUT_DIRECTORY       = doc-api-ref-minigui-ths-4.0.7
 
 # If the CREATE_SUBDIRS tag is set to YES then doxygen will create 4096 sub-
 # directories (in 2 levels) under the output directory of each output format and

GNUmakefile

@@ -1,6 +1,6 @@
-MAJOR_VERSION = 3
+MAJOR_VERSION = 4
 MINOR_VERSION = 0
-MICRO_VERSION = 13
+MICRO_VERSION = 4
 EXTRAVERSION =
 
 MINIGUI_RELEASE=$(MAJOR_VERSION).$(MINOR_VERSION).$(MICRO_VERSION)$(EXTRAVERSION)

Version.md

@@ -1,8 +1,8 @@
-Version 4.0.4 (2019/12/24)
+Version 4.0.7 (2020/03/30)
 
 This release needs the following packages:
 
 - The resource package: `minigui-res-4.0.0.tar.gz`
 - The sample package: `mg-samples-4.0.1.tar.gz`
-- The test cases package: `mg-tests-4.0.4.tar.gz`
+- The test cases package: `mg-tests-4.0.7.tar.gz`
 

configure.ac

@@ -1,6 +1,6 @@
 dnl Process this file with autoconf to produce a configure script.
 AC_PREREQ(2.60)
-AC_INIT(libminigui, 4.0.4)
+AC_INIT(libminigui, 4.0.7)
 AC_CONFIG_SRCDIR(src/main/main.c)
 
 dnl Set various version strings - taken gratefully from the SDL sources
@@ -16,7 +16,7 @@ dnl Set various version strings - taken gratefully from the SDL sources
 #
 MINIGUI_MAJOR_VERSION=4
 MINIGUI_MINOR_VERSION=0
-MINIGUI_MICRO_VERSION=4
+MINIGUI_MICRO_VERSION=7
 MINIGUI_INTERFACE_AGE=0
 MINIGUI_BINARY_AGE=0
 MINIGUI_VERSION=$MINIGUI_MAJOR_VERSION.$MINIGUI_MINOR_VERSION.$MINIGUI_MICRO_VERSION
@@ -120,13 +120,13 @@ build_net_ial_engine="no"
 
 dnl common IAL engines
 build_libinput_ial_engine="yes"
-build_console_ial_engine="no"
+build_console_ial_engine="yes"
 build_console_ps2="no"
-build_console_imps2="no"
+build_console_imps2="yes"
 build_console_ms="no"
 build_console_ms3="no"
 build_console_gpm="no"
-build_text_mode="no"
+build_text_mode="yes"
 
 dnl the customized ial engine
 build_dlcustom_ial_engine="no"
@@ -265,7 +265,7 @@ enable_video_dfb_st7167="no"
 enable_video_stgfb="no"
 
 enable_video_drm="yes"
-enable_video_fbcon="no"
+enable_video_fbcon="yes"
 enable_video_commlcd="no"
 enable_video_shadow="no"
 enable_video_mlshadow="no"
@@ -470,7 +470,7 @@ AC_ARG_ENABLE(libinputial,
 build_libinput_ial_engine=$enableval)
 
 AC_ARG_ENABLE(consoleial,
-[  --enable-consoleial      build the console (Linux console) IAL engine <default=no>],
+[  --enable-consoleial      build the console (Linux console) IAL engine <default=yes>],
 build_console_ial_engine=$enableval)
 
 AC_ARG_ENABLE(consoleps2,
@@ -478,7 +478,7 @@ AC_ARG_ENABLE(consoleps2,
 build_console_ps2=$enableval)
 
 AC_ARG_ENABLE(consoleimps2,
-[  --enable-consoleimps2    build the console engine subdriver for IntelligentMouse (IMPS/2) mouse <default=no>],
+[  --enable-consoleimps2    build the console engine subdriver for IntelligentMouse (IMPS/2) mouse <default=yes>],
 build_console_imps2=$enableval)
 
 AC_ARG_ENABLE(consolems,
@@ -494,7 +494,7 @@ AC_ARG_ENABLE(consolegpm,
 build_console_gpm=$enableval)
 
 AC_ARG_ENABLE(textmode,
-[  --enable-textmode        Linux system have console (text mode) on FrameBuffer <default=no>],
+[  --enable-textmode        Linux system have console (text mode) on FrameBuffer <default=yes>],
 build_text_mode=$enableval)
 
 AC_ARG_ENABLE(rbfsupport,
@@ -885,26 +885,22 @@ CheckFBCON()
 dnl Find the DRM includes
 CheckDRM()
 {
-    if test "x$runtime_mode" = "xprocs"; then
-        enable_video_drm="no; DRI engine does not support MiniGUI-Processes runtime mode currently"
-    else
-        AC_ARG_ENABLE(videodrm,
-    [  --enable-videodrm      include Linux DRI NEWGAL engine <default=yes>],
-        enable_video_drm=$enableval)
-        if test "x$enable_video_drm" = "xyes"; then
-            PKG_CHECK_MODULES(DRM, [libdrm >= 2.4], video_drm="yes",
-                video_drm="no; Linux DRI NEWGAL engine requires libdrm 2.4+")
-            if test "x$video_drm" = "xyes"; then
-                AC_DEFINE(_MGGAL_DRM, 1,
-                    [Define if include Linux DRI NEWGAL engine])
-                VIDEO_SUBDIRS="$VIDEO_SUBDIRS drm"
-                VIDEO_DRIVERS="$VIDEO_DRIVERS drm/libvideo_drm.la"
-                DEP_LIBS="$DEP_LIBS -ldrm -ldl"
-                DRM_INC_DIR="`$PKG_CONFIG --variable includedir libdrm`/libdrm"
-                AC_SUBST(DRM_INC_DIR)
-            else
-                AC_MSG_WARN([$video_drm])
-            fi
+    AC_ARG_ENABLE(videodrm,
+[  --enable-videodrm      include Linux DRI NEWGAL engine <default=yes>],
+    enable_video_drm=$enableval)
+    if test "x$enable_video_drm" = "xyes"; then
+        PKG_CHECK_MODULES(DRM, [libdrm >= 2.4], video_drm="yes",
+            video_drm="no; Linux DRI NEWGAL engine requires libdrm 2.4+")
+        if test "x$video_drm" = "xyes"; then
+            AC_DEFINE(_MGGAL_DRM, 1,
+                [Define if include Linux DRI NEWGAL engine])
+            VIDEO_SUBDIRS="$VIDEO_SUBDIRS drm"
+            VIDEO_DRIVERS="$VIDEO_DRIVERS drm/libvideo_drm.la"
+            DEP_LIBS="$DEP_LIBS -ldrm -ldl"
+            DRM_INC_DIR="`$PKG_CONFIG --variable includedir libdrm`/libdrm"
+            AC_SUBST(DRM_INC_DIR)
+        else
+            AC_MSG_WARN([$video_drm])
         fi
     fi
 }

etc/MiniGUI.cfg

@@ -55,7 +55,7 @@ dpi=96
 
 # The filename of the shared library for the external driver.
 # The equivalent environment variable: MG_GAL_DRM_DRIVER
-exdriver=libhidrmdrivers.so.0
+exdriver=libhidrmdrivers-0.2.so.0
 #}}
 
 #{{ifdef _MGIAL_LIBINPUT

include/customial.h

@@ -234,6 +234,9 @@ typedef struct tagINPUT {
     // New wait event method for getting extra input events; since 4.0.0
     int (*wait_event_ex) (int maxfd, fd_set *in, fd_set *out,
             fd_set *except, struct timeval *timeout, EXTRA_INPUT_EVENT* extra);
+
+    /* BUGFIXING (VM 2020-03-12): merged from 5.0.0 */
+    char* mdev;
 } INPUT;
 
 #ifdef __cplusplus

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. */
-    uint32_t id;
+    /** The prime fd of the buffer object. If it was no exported as a global
+     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,
-            uint32_t name, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch);
+MG_EXPORT HDC drmCreateDCFromNameEx (GHANDLE video,
+        uint32_t name, uint32_t drm_format, off_t offset,
+        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,
-            int prime_fd, unsigned long size, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch);
+MG_EXPORT HDC drmCreateDCFromPrimeFdEx (GHANDLE video,
+        int prime_fd, size_t size, uint32_t drm_format, off_t offset,
+        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,
-            uint32_t handle, unsigned long size, uint32_t drm_format,
-            unsigned int width, unsigned int height, uint32_t pitch);
+MG_EXPORT HDC drmCreateDCFromHandleEx (GHANDLE video,
+        uint32_t handle, size_t size, uint32_t drm_format, off_t offset,
+        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/client/client.c

@@ -175,15 +175,12 @@ int GUIAPI ClientRequestEx (const REQUEST* request, const void* ex_data, int ex_
     if (mgIsServer)
         return -1;
 
-#ifdef _MGGAL_MLSHADOW
-    if ((request->id != REQID_MLSHADOW_CLIREQ) 
-            && (__mg_client_id == 0 && request->id != REQID_JOINLAYER)) {
-#elif defined(_MGGAL_NEXUS)
-    if ((request->id != REQID_NEXUS_CLIENT_GET_SURFACE)
-            && (__mg_client_id == 0 && request->id != REQID_JOINLAYER)) {
-#else
-    if (__mg_client_id == 0 && request->id != REQID_JOINLAYER) {
-#endif
+    if (__mg_client_id == 0 &&
+            request->id != REQID_AUTHCLIENT &&
+            request->id != REQID_GETSHAREDSURFACE &&
+            request->id != REQID_NEXUS_CLIENT_GET_SURFACE &&
+            request->id != REQID_MLSHADOW_CLIREQ &&
+            request->id != REQID_JOINLAYER) {
         fprintf (stderr, "CLIENT: please call JoinLayer first.\n");
         exit (255);
         return -1;

src/control/edit.c

@@ -2147,7 +2147,8 @@ SLEditCtrlProc (HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
                 return 0;
         }
 
-        if (wParam == '\b') { //backspace
+        /* BUGFIXING (VM 2020-03-12): merged from 5.0.0 */
+        if (charBuffer [0] == '\b') { //backspace
             int del;
 
             if (sled->editPos == 0 && sled->selStart == sled->selEnd)

src/gui/window.c

@@ -3824,6 +3824,9 @@ HWND GUIAPI CreateMainWindowEx (PMAINWINCREATE pCreateInfo,
     return (HWND)pWin;
 
 err:
+    /* BUGFIXING (VM 2020-03-12): merged from 5.0.0 */
+    ThrowAwayMessages ((HWND)pWin);
+
 #ifdef _MGRM_THREADS
     if (pWin->pMessages && pWin->pHosting == NULL) {
         mg_FreeMsgQueueThisThread ();

src/ial/ial.c

@@ -133,8 +133,7 @@
     #include "linux-libinput.h"
 #endif
 
-#define LEN_ENGINE_NAME        16
-#define LEN_MTYPE_NAME         16
+#define LEN_MTYPE_NAME         23
 
 static INPUT inputs [] =
 {
@@ -291,7 +290,8 @@ int mg_InitIAL (void)
             return ERR_NO_MATCH;
     }
 
-    //strcpy (__mg_cur_input->mdev, mdev);
+    /* BUGFIXING (VM 2020-03-12): merged from 5.0.0 */
+    __mg_cur_input->mdev = strdup (mdev);
 
     if (!IAL_InitInput (__mg_cur_input, mdev, mtype)) {
         _ERR_PRINTF ("IAL: Failed to initialize the IAL engine: %s.\n", __mg_cur_input->id);
@@ -306,8 +306,12 @@ int mg_InitIAL (void)
 
 void mg_TerminateIAL (void)
 {
-    if (__mg_cur_input && __mg_cur_input->term_input) {
-        IAL_TermInput ();
+    if (__mg_cur_input) {
+        if (__mg_cur_input->mdev)
+            free (__mg_cur_input->mdev);
+
+        if (__mg_cur_input->term_input)
+            IAL_TermInput ();
     }
 }
 

src/include/client.h

@@ -75,32 +75,43 @@
 
 #define REQID_HWSURFACE         0x0013
 
-#ifdef _MGHAVE_CLIPBOARD
 #define REQID_CLIPBOARD         0x0014
-#endif
 
-#ifdef _MGGAL_MLSHADOW
 #define REQID_MLSHADOW_CLIREQ   0x0015
-#endif
 
 #define REQID_ZORDERMASKRECTOP  0x0016
 
-#ifdef _MGGAL_NEXUS
 #define REQID_NEXUS_CLIENT_GET_SURFACE  0x0017
-#endif
-#ifdef _MGGAL_SIGMA8654
 #define REQID_SIGMA8654_CLIENT_GET_SURFACE 0x0018
-#endif
 
 #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/internals.h

@@ -639,14 +639,14 @@ AlertDesktopTimerEvent (void)
 static inline void
 SetMsgQueueTimerFlag (PMSGQUEUE pMsgQueue, int slot)
 {
-    pMsgQueue->TimerMask |= (0x01 << slot);
+    pMsgQueue->TimerMask |= (0x01UL << slot);
     POST_MSGQ (pMsgQueue);
 }
 
 static inline void
 RemoveMsgQueueTimerFlag (PMSGQUEUE pMsgQueue, int slot)
 {
-    pMsgQueue->TimerMask &= ~(0x01 << slot);
+    pMsgQueue->TimerMask &= ~(0x01UL << slot);
 }
 
 BOOL mg_InitTimer (void);

src/include/newgal.h

@@ -57,6 +57,14 @@
 
 #include "gdi.h"
 
+#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
+
 #define DISABLE_THREADS
 #define GAL_mutex       int
 
@@ -757,7 +765,7 @@ 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 +786,29 @@ 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

@@ -11,35 +11,35 @@
 //
 //////////////////////////////////////////////////////////////////////////////
 /*
- *   This file is part of MiniGUI, a mature cross-platform windowing 
+ *   This file is part of MiniGUI, a mature cross-platform windowing
  *   and Graphics User Interface (GUI) support system for embedded systems
  *   and smart IoT devices.
- * 
+ *
  *   Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
  *   Copyright (C) 1998~2002, WEI Yongming
- * 
+ *
  *   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
  *   the Free Software Foundation, either version 3 of the License, or
  *   (at your option) any later version.
- * 
+ *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
- * 
+ *
  *   You should have received a copy of the GNU General Public License
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
- * 
+ *
  *   Or,
- * 
+ *
  *   As this program is a library, any link to this program must follow
  *   GNU General Public License version 3 (GPLv3). If you cannot accept
  *   GPLv3, you need to be licensed from FMSoft.
- * 
+ *
  *   If you have got a commercial license of this program, please use it
  *   under the terms and conditions of the commercial license.
- * 
+ *
  *   For more information about the commercial license, please refer to
  *   <http://www.minigui.com/blog/minigui-licensing-policy/>.
  */
@@ -70,10 +70,48 @@ enum {
     _NR_SEM
 };
 
+// key base for System V IPC
+#define IPC_KEY_BASE                0x464D4700
+
+inline static key_t get_shm_key_for_system (void)
+{
+    return (key_t)(IPC_KEY_BASE + 0x01);
+}
+
+inline static key_t get_sem_key_for_system (void)
+{
+    return (key_t)(IPC_KEY_BASE + 0x02);
+}
+
+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;
 
@@ -95,7 +133,7 @@ typedef struct tagG_RES {
     int mousebutton;
     int shiftstatus;
     Uint8 kbd_state [MGUI_NR_KEYS + 1];
-    
+
 #ifdef _MGHAVE_CURSOR
     int cursorx, cursory;
     int oldboxleft, oldboxtop;
@@ -132,6 +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/cursor-comm.c

@@ -189,7 +189,8 @@ static HCURSOR load_cursor_from_mem (const void* area)
     p += sizeof (DWORD32);    
     imagew = MGUI_ReadLE32Mem (&p);
     imageh = MGUI_ReadLE32Mem (&p);
-    if (imagew > 32 || imageh > 32) {
+    /* BUGFIXING (VM 2020-03-12): merged from 5.0.0 */
+    if (imagew != CURSORWIDTH || imageh != (CURSORHEIGHT*2)) {
         goto error;
     }
 

src/kernel/cursor-procs.c

@@ -370,9 +370,7 @@ HCURSOR GUIAPI GetDefaultCursor (void)
     return def_cursor;
 }
 
-static BITMAP csr_bmp = {
-    BMP_TYPE_NORMAL, 0, 0, 0, 0, CURSORWIDTH, CURSORHEIGHT
-};
+static BITMAP csr_bmp;
 
 BOOL mg_InitCursor (void)
 {
@@ -392,10 +390,14 @@ BOOL mg_InitCursor (void)
         CSR_OLDBOXTOP = -100;
     }
 
+    /* always initialize fields by explicitly assignments */
+    csr_bmp.bmType = BMP_TYPE_NORMAL;
     csr_bmp.bmBitsPerPixel = __gal_screen->format->BitsPerPixel;
     csr_bmp.bmBytesPerPixel = __gal_screen->format->BytesPerPixel;
+    csr_bmp.bmWidth = CURSORWIDTH;
+    csr_bmp.bmHeight = CURSORHEIGHT;
     csr_bmp.bmPitch = __gal_screen->format->BytesPerPixel * CURSORWIDTH;
-    
+
     return TRUE;
 }
 

src/kernel/cursor-sa.c

@@ -108,9 +108,7 @@ HCURSOR GUIAPI LoadCursorFromMem (const void* area)
     return load_cursor_from_mem (area);
 }
 
-static BITMAP csr_bmp = {
-    BMP_TYPE_NORMAL, 0, 0, 0, 0, CURSORWIDTH, CURSORHEIGHT
-};
+static BITMAP csr_bmp;
 
 /* Only called from InitCursor and client code. */
 HCURSOR GUIAPI CreateCursor(int xhotspot, int yhotspot, int w, int h,
@@ -242,6 +240,10 @@ BOOL mg_InitCursor(void)
 
     csrimgsize = GAL_GetBoxSize (__gal_screen, CURSORWIDTH, CURSORHEIGHT, &csrimgpitch);
 
+    /* always initialize fields by explicitly assignments */
+    csr_bmp.bmType = BMP_TYPE_NORMAL;
+    csr_bmp.bmWidth = CURSORWIDTH;
+    csr_bmp.bmHeight = CURSORHEIGHT;
     csr_bmp.bmBitsPerPixel = __gal_screen->format->BitsPerPixel;
     csr_bmp.bmBytesPerPixel = __gal_screen->format->BytesPerPixel;
     csr_bmp.bmPitch = csrimgpitch;

src/kernel/cursor.c

@@ -139,9 +139,7 @@ HCURSOR GUIAPI LoadCursorFromMem (const void* area)
     return load_cursor_from_mem (area);
 }
 
-static BITMAP csr_bmp = {
-    BMP_TYPE_NORMAL, 0, 0, 0, 0, CURSORWIDTH, CURSORHEIGHT
-};
+static BITMAP csr_bmp;
 
 /* Only called from InitCursor and client code. */
 HCURSOR GUIAPI CreateCursor(int xhotspot, int yhotspot, int w, int h,
@@ -279,11 +277,10 @@ BOOL realInitCursor(void)
                     &csrimgpitch);
 
     csr_bmp.bmType = BMP_TYPE_NORMAL;
-    csr_bmp.bmWidth = CURSORWIDTH;
-    csr_bmp.bmHeight = CURSORHEIGHT;
-    
     csr_bmp.bmBitsPerPixel = __gal_screen->format->BitsPerPixel;
     csr_bmp.bmBytesPerPixel = __gal_screen->format->BytesPerPixel;
+    csr_bmp.bmWidth = CURSORWIDTH;
+    csr_bmp.bmHeight = CURSORHEIGHT;
     csr_bmp.bmPitch = csrimgpitch;
 
     if( !(savedbits = malloc(csrimgsize)) )

src/kernel/desktop-procs.c

@@ -97,7 +97,7 @@ GHANDLE __mg_layer;
 /* always be zero for clients. */
 BOOL __mg_switch_away;
 
-void lock_zi_for_read (const ZORDERINFO* zi)
+static void lock_zi_for_read (const ZORDERINFO* zi)
 {
     struct sembuf sb;
 
@@ -116,7 +116,7 @@ again:
 
 }
 
-void unlock_zi_for_read (const ZORDERINFO* zi)
+static void unlock_zi_for_read (const ZORDERINFO* zi)
 {
     struct sembuf sb;
 
@@ -134,7 +134,7 @@ again:
     }
 }
 
-void lock_zi_for_change (const ZORDERINFO* zi)
+static void lock_zi_for_change (const ZORDERINFO* zi)
 {
     int clients = 0;
     struct sembuf sb;
@@ -157,7 +157,7 @@ again:
     }
 }
 
-void unlock_zi_for_change (const ZORDERINFO* zi)
+static void unlock_zi_for_change (const ZORDERINFO* zi)
 {
     int clients = 0;
     struct sembuf sb;
@@ -176,7 +176,7 @@ again:
     }
 }
 
-inline void* get_zi_from_client(int cli)
+static inline void* get_zi_from_client(int cli)
 {
     return (((cli>0)?mgClients[cli].layer:mgTopmostLayer)->zorder_info);
 }

src/kernel/event.c

@@ -55,6 +55,8 @@
 #include <stdlib.h>
 #include <string.h>
 
+#define _DEBUG
+
 #include "common.h"
 
 #ifndef __NOUNIX__
@@ -252,7 +254,7 @@ static void treat_longpress (PKEYEVENT ke, DWORD interval)
                 ke->event = KE_KEYLONGPRESS;
             }
             else
-                ke->event = 0;
+                ke->event = KE_KEYDOWN;
         }
         else if (interval >= __mg_key_alwayspress_time) {
             if (flag2) {
@@ -261,7 +263,7 @@ static void treat_longpress (PKEYEVENT ke, DWORD interval)
                 ke->event = KE_KEYALWAYSPRESS;
             }
             else if (__mg_timer_counter - starttime < __mg_interval_time) {
-                ke->event = 0;
+                ke->event = KE_KEYDOWN;
             }
             else {
                 starttime = __mg_timer_counter;
@@ -278,7 +280,7 @@ static void treat_longpress (PKEYEVENT ke, DWORD interval)
                 ke->event = KE_KEYALWAYSPRESS;
             }
             else if (__mg_timer_counter - starttime < __mg_interval_time) {
-                ke->event = 0;
+                ke->event = KE_KEYDOWN;
             }
             else {
                 starttime = __mg_timer_counter;
@@ -291,7 +293,7 @@ static void treat_longpress (PKEYEVENT ke, DWORD interval)
                 ke->event = KE_KEYLONGPRESS;
             }
             else
-                ke->event = 0;
+                ke->event = KE_KEYDOWN;
         }
     }
 }
@@ -456,6 +458,7 @@ BOOL kernel_GetLWEvent (int event, PLWEVENT lwe)
 #endif
                  ke->event = KE_KEYUP;
                  ke->scancode = i;
+                 olddownkey = 0;
                  break;
             }
         }
@@ -465,8 +468,12 @@ BOOL kernel_GetLWEvent (int event, PLWEVENT lwe)
             ke->scancode = olddownkey;
             interval = __mg_timer_counter - ke_time;
             treat_longpress (ke, interval);
-            if (ke->event == 0)
+            if (ke->event == 0) {
                 return 0;
+            }
+            else if (ke->event == KE_KEYDOWN) {
+                status |= KS_REPEATED;
+            }
         }
 
         make = (ke->event == KE_KEYDOWN)?1:0;
@@ -756,6 +763,7 @@ BOOL kernel_GetLWEvent (int event, PLWEVENT lwe)
             if(oldkeystate[i] && !keystate[i]) {
                  ke->event = KE_KEYUP;
                  ke->scancode = i;
+                 olddownkey = 0;
                  break;
             }
         }
@@ -765,8 +773,12 @@ BOOL kernel_GetLWEvent (int event, PLWEVENT lwe)
             ke->scancode = olddownkey;
             interval = __mg_timer_counter - ke_time;
             treat_longpress (ke, interval);
-            if (ke->event == 0)
+            if (ke->event == 0) {
                 return 0;
+            }
+            else if (ke->event == KE_KEYDOWN) {
+                status |= KS_REPEATED;
+            }
         }
 
         make = (ke->event == KE_KEYDOWN) ? 1 : 0;

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/kernel/init.c

@@ -419,6 +419,8 @@ static BOOL InstallSEGVHandler (void)
 
 int GUIAPI InitGUI (int args, const char *agr[])
 {
+    char engine [LEN_ENGINE_NAME + 1];
+    char mode [LEN_VIDEO_MODE + 1];
     int step = 0;
 
     __mg_quiting_stage = _MG_QUITING_STAGE_RUNNING;
@@ -464,7 +466,7 @@ int GUIAPI InitGUI (int args, const char *agr[])
     }
 
     step++;
-    switch (mg_InitGAL ()) {
+    switch (mg_InitGAL (engine, mode)) {
     case ERR_CONFIG_FILE:
         fprintf (stderr,
             "KERNEL>InitGUI: Reading configuration failure!\n");

src/kernel/sharedres.c

@@ -11,41 +11,41 @@
 //
 //////////////////////////////////////////////////////////////////////////////
 /*
- *   This file is part of MiniGUI, a mature cross-platform windowing 
+ *   This file is part of MiniGUI, a mature cross-platform windowing
  *   and Graphics User Interface (GUI) support system for embedded systems
  *   and smart IoT devices.
- * 
+ *
  *   Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
  *   Copyright (C) 1998~2002, WEI Yongming
- * 
+ *
  *   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
  *   the Free Software Foundation, either version 3 of the License, or
  *   (at your option) any later version.
- * 
+ *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
- * 
+ *
  *   You should have received a copy of the GNU General Public License
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
- * 
+ *
  *   Or,
- * 
+ *
  *   As this program is a library, any link to this program must follow
  *   GNU General Public License version 3 (GPLv3). If you cannot accept
  *   GPLv3, you need to be licensed from FMSoft.
- * 
+ *
  *   If you have got a commercial license of this program, please use it
  *   under the terms and conditions of the commercial license.
- * 
+ *
  *   For more information about the commercial license, please refer to
  *   <http://www.minigui.com/blog/minigui-licensing-policy/>.
  */
 /*
 ** sharedres.c: Load and init shared resource.
-** 
+**
 ** Create date: 2000/12/22
 */
 
@@ -85,7 +85,7 @@
 #define SEM_PARAM 0666
 
 // define to use mmap instead of shared memory.
-#undef  _USE_MMAP 
+#undef  _USE_MMAP
 // #define _USE_MMAP 1
 
 #ifdef _MGHAVE_CURSOR
@@ -125,7 +125,7 @@ static BOOL LoadCursorRes (void)
     mgSizeRes += __mg_csrimgsize;
     ((PG_RES)mgSharedRes)->csroffset = mgSizeRes;
 
-    // pointer to begin of cursor struct, 
+    // pointer to begin of cursor struct,
     // and reserve a space for handles for system cursors.
     temp = (char*)mgSharedRes + mgSizeRes + sizeof (PCURSOR) * number;
 
@@ -133,12 +133,12 @@ static BOOL LoadCursorRes (void)
         if ( !(tempcsr = sysres_load_system_cursor (i)) )
             goto error;
 
-        memcpy (temp, tempcsr, sizeof(CURSOR));        
+        memcpy (temp, tempcsr, sizeof(CURSOR));
         temp += sizeof(CURSOR);
         memcpy (temp, tempcsr->AndBits, __mg_csrimgsize);
-        temp += __mg_csrimgsize; 
+        temp += __mg_csrimgsize;
         memcpy (temp, tempcsr->XorBits, __mg_csrimgsize);
-        temp += __mg_csrimgsize; 
+        temp += __mg_csrimgsize;
         free (tempcsr->AndBits);
         free (tempcsr->XorBits);
         free (tempcsr);
@@ -153,23 +153,46 @@ error:
 
 #endif /* _MGHAVE_CURSOR */
 
-inline static key_t get_shm_key (void)
-{
-    return (key_t)(IPC_KEY_BASE + 0x01);
-}
-
-inline static key_t get_sem_key (void)
-{
-    return (key_t)(IPC_KEY_BASE + 0x02);
-}
-
 BOOL kernel_IsOnlyMe (void)
 {
     int fd;
 
-    if ((fd = open (LOCKFILE, O_RDONLY)) == -1)
+    if ((fd = open (LOCKFILE, O_RDONLY)) == -1) {
         return TRUE;
+    }
 
+    if (flock (fd, LOCK_EX | LOCK_NB) == 0) {
+        // It is time to remove the old SysV IPC objects.
+        key_t sem_key = get_sem_key_for_system ();
+
+        // remove system semaphore set.
+        int semid = semget (sem_key, 0, SEM_PARAM);
+        if (semid >= 0) {
+            union semun ignored;
+            if (semctl (semid, 0, IPC_RMID, ignored) < 0) {
+                goto failed;
+            }
+            _WRN_PRINTF("The old semaphore set for system (0x%06x) dicarded\n",
+                    semid);
+        }
+
+        // remove system semaphore set.
+        sem_key = get_sem_key_for_layers ();
+        semid = semget (sem_key, 0, SEM_PARAM);
+        if (semid >= 0) {
+            union semun ignored;
+            if (semctl (semid, 0, IPC_RMID, ignored) < 0) {
+                goto failed;
+            }
+            _WRN_PRINTF("The old semaphore set for layers (0x%06x) dicarded\n",
+                    semid);
+        }
+
+        close (fd);
+        return TRUE;
+    }
+
+failed:
     close (fd);
     return FALSE;
 }
@@ -186,6 +209,8 @@ error:
     perror("remove semaphore");
 }
 
+static int lockfd;
+
 void *kernel_LoadSharedResource (void)
 {
     key_t sem_key;
@@ -193,7 +218,7 @@ void *kernel_LoadSharedResource (void)
     key_t shm_key;
     void *memptr;
 #endif
-    int lockfd, semid;
+    int semid;
 #ifndef _USE_MMAP
     int shmid;
 #endif
@@ -205,30 +230,30 @@ void *kernel_LoadSharedResource (void)
 
 #ifdef _MGHAVE_CURSOR
     if (!LoadCursorRes()) {
-        perror ("InitCursor"); 
+        perror ("InitCursor");
         return NULL;
     }
 #endif
 
 #ifndef _USE_MMAP
-    if ((shm_key = get_shm_key ()) == -1) {
+    if ((shm_key = get_shm_key_for_system ()) == -1) {
         goto error;
     }
-    shmid = shmget (shm_key, mgSizeRes, SHM_PARAM | IPC_CREAT | IPC_EXCL); 
-    if (shmid == -1) { 
+    shmid = shmget (shm_key, mgSizeRes, SHM_PARAM | IPC_CREAT | IPC_EXCL);
+    if (shmid == -1) {
         goto error;
-    } 
+    }
 
-    // Attach to the share memory. 
+    // Attach to the share memory.
     memptr = shmat (shmid, 0, 0);
-    if (memptr == (char*)-1) 
+    if (memptr == (char*)-1)
         goto error;
     else {
         memcpy (memptr, mgSharedRes, mgSizeRes);
         free (mgSharedRes);
     }
 
-    if (shmctl (shmid, IPC_RMID, NULL) < 0) 
+    if (shmctl (shmid, IPC_RMID, NULL) < 0)
         goto error;
 #endif
 
@@ -252,19 +277,19 @@ void *kernel_LoadSharedResource (void)
         goto error;
     }
 #endif
-#if 0
-    if (flock (lockfd, LOCK_EX | LOCK_NB) == -1)
-        goto error;
-#endif
 
-    close (lockfd);
+    if (flock (lockfd, LOCK_EX) == -1)
+        goto error;
+
+    // close lockfd will release the exclusive lock
+    // close (lockfd);
 
     // Obtain the semophore syncing drawing.
-    if ((sem_key = get_sem_key ()) == -1) {
+    if ((sem_key = get_sem_key_for_system ()) == -1) {
         goto error;
     }
-    semid = semget (sem_key, _NR_SEM, SEM_PARAM | IPC_CREAT | IPC_EXCL); 
-    if (semid == -1) { 
+    semid = semget (sem_key, _NR_SEM, SEM_PARAM | IPC_CREAT | IPC_EXCL);
+    if (semid == -1) {
         goto error;
     }
     atexit (__mg_delete_sharedres_sem);
@@ -291,15 +316,16 @@ void *kernel_LoadSharedResource (void)
 #endif
     SHAREDRES_SEMID = semid;
 
-    return mgSharedRes; 
+    return mgSharedRes;
 
 error:
-    perror ("KERNEL>LoadSharedResource"); 
+    perror ("KERNEL>LoadSharedResource");
     return NULL;
-} 
+}
 
 void kernel_UnloadSharedResource (void)
 {
+    close (lockfd);
     unlink (LOCKFILE);
 }
 
@@ -324,12 +350,12 @@ void* kernel_AttachSharedResource (void)
 
     memptr = shmat (shmid, 0, SHM_RDONLY);
 #endif
-    if (memptr == (char*)-1) 
+    if (memptr == (char*)-1)
         goto error;
     return memptr;
 
 error:
-    perror ("AttachSharedResource"); 
+    perror ("AttachSharedResource");
     return NULL;
 }
 
@@ -337,10 +363,10 @@ void kernel_UnattachSharedResource (void)
 {
 #ifdef _USE_MMAP
     if (munmap(mgSharedRes, mgSizeRes))
-        perror("detaches shared resource");        
+        perror("detaches shared resource");
 #else
     if (shmdt (mgSharedRes) < 0)
-        perror("detaches shared resource");        
+        perror("detaches shared resource");
 #endif
 }
 

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/fbcon/fbvideo.c

@@ -707,7 +707,8 @@ static GAL_Surface *FB_SetVideoMode(_THIS, GAL_Surface *current,
     }
 
 #ifdef _MGHAVE_PCIACCESS
-    if (pci_accel_driver) /* Init accelerated hardware via pciaccess */
+    /* BUGFIXING (VM 2020-03-12): merged from 5.0.0 */
+    if (pci_accel_driver > 0) /* Init accelerated hardware via pciaccess */
         FB_InitPCIAccelDriver (this, current);
 #endif
 
@@ -1196,7 +1197,8 @@ static void FB_VideoQuit(_THIS)
         }
 
 #ifdef _MGHAVE_PCIACCESS
-        if (pci_accel_driver) {
+        /* BUGFIXING (VM 2020-03-12): merged from 5.0.0 */
+        if (pci_accel_driver > 0) {
             FB_CleanupPCIAccelDriver (this);
             pci_accel_driver = 0;
         }

src/newgal/fbcon/fbvideo.h

@@ -74,16 +74,6 @@ struct GAL_PrivateVideoData {
     int saved_cmaplen;
     __u16 *saved_cmap;
 
-#if 0
-    int current_vt;
-    int saved_vt;
-    int keyboard_fd;
-    int saved_kbd_mode;
-    struct termios saved_kbd_termios;
-
-    int mouse_fd;
-#endif
-
 #ifdef _MGHAVE_PCIACCESS
     int pci_accel_driver;
 #endif

src/newgal/newgal.c

@@ -61,11 +61,13 @@
 #include "misc.h"
 #include "license.h"
 
+#ifdef _MGRM_PROCESSES
+#include "sharedres.h"
+#endif
 
 GAL_Surface* __gal_screen;
 
-#define LEN_ENGINE_NAME 10
-#define LEN_MODE        20
+#define LEN_MODE        LEN_VIDEO_MODE
 
 BOOL GAL_ParseVideoMode (const char* mode, int* w, int* h, int* depth)
 {
@@ -87,20 +89,11 @@ BOOL GAL_ParseVideoMode (const char* mode, int* w, int* h, int* depth)
     return TRUE;
 }
 
-int mg_InitGAL (void)
+static void get_engine_from_etc (char* engine)
 {
-    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;
-#endif
+    char* env_value;
 
-    LICENSE_CHECK_CUSTIMER_ID ();
-
-#ifndef __NOUNIX__
     if ((env_value = getenv ("MG_GAL_ENGINE"))) {
         strncpy (engine, env_value, LEN_ENGINE_NAME);
         engine [LEN_ENGINE_NAME] = '\0';
@@ -109,7 +102,7 @@ int mg_InitGAL (void)
 #endif
 #ifndef _MG_MINIMALGDI
     if (GetMgEtcValue ("system", "gal_engine", engine, LEN_ENGINE_NAME) < 0) {
-        return ERR_CONFIG_FILE;
+        engine [0] = '\0';
     }
 #else /* _MG_MINIMALGDI */
 #   ifdef _MGGAL_PCXVFB
@@ -118,23 +111,75 @@ int mg_InitGAL (void)
     strcpy(engine, "dummy");
 #   endif
 #endif /* _MG_MINIMALGDI */
-    
+}
+
+static void get_mode_from_etc (const char* engine, char* mode)
+{
+#if defined (WIN32) || !defined(__NOUNIX__)
+    char* env_value;
+
+    if ((env_value = getenv ("MG_DEFAULTMODE"))) {
+        strncpy (mode, env_value, LEN_VIDEO_MODE);
+        mode [LEN_VIDEO_MODE] = '\0';
+    }
+    else
+#endif
+    if (GetMgEtcValue (engine, "defaultmode", mode, LEN_VIDEO_MODE) < 0)
+        if (GetMgEtcValue ("system", "defaultmode", mode, LEN_VIDEO_MODE) < 0)
+            mode [0] = '\0';
+}
+
+static int get_dpi_from_etc (const char* engine)
+{
+    int dpi;
+
+    if (GetMgEtcIntValue (engine, "dpi", &dpi) < 0)
+        dpi = GDCAP_DPI_DEFAULT;
+    else if (dpi < GDCAP_DPI_MINIMAL)
+        dpi = GDCAP_DPI_MINIMAL;
+
+    return dpi;
+}
+
+int mg_InitGAL (char* engine, char* mode)
+{
+    int i;
+    int w, h, depth;
+
+#ifdef _MGRM_PROCESSES
+    if (mgIsServer) {
+        get_engine_from_etc (engine);
+    }
+    else {
+        strncpy (engine, SHAREDRES_VIDEO_ENGINE, LEN_ENGINE_NAME);
+        engine [LEN_ENGINE_NAME] = '\0';
+
+        strncpy (mode, SHAREDRES_VIDEO_MODE, LEN_VIDEO_MODE);
+        mode [LEN_VIDEO_MODE] = '\0';
+
+#ifdef _MGSCHEMA_COMPOSITING
+        need_set_mode = FALSE;
+#endif
+    }
+#else
+    get_engine_from_etc (engine);
+#endif /* _MGRM_PROCESSES */
+
+    if (engine[0] == 0) {
+        return ERR_CONFIG_FILE;
+    }
+
     if (GAL_VideoInit (engine, 0)) {
         GAL_VideoQuit ();
         fprintf (stderr, "NEWGAL: Does not find matched engine: %s.\n", engine);
         return ERR_NO_MATCH;
     }
 
-#if defined (WIN32) || !defined(__NOUNIX__)
-    if ((env_value = getenv ("MG_DEFAULTMODE"))) {
-        strncpy (mode, env_value, LEN_MODE);
-        mode [LEN_MODE] = '\0';
+    get_mode_from_etc (engine, mode);
+
+    if (mode[0] == 0) {
+        return ERR_CONFIG_FILE;
     }
-    else
-#endif
-    if (GetMgEtcValue (engine, "defaultmode", mode, LEN_MODE) < 0)
-        if (GetMgEtcValue ("system", "defaultmode", mode, LEN_MODE) < 0)
-            return ERR_CONFIG_FILE;
 
     if (!GAL_ParseVideoMode (mode, &w, &h, &depth)) {
         GAL_VideoQuit ();
@@ -159,10 +204,14 @@ int mg_InitGAL (void)
     }
 #endif
 
-    if (GetMgEtcIntValue (engine, "dpi", &__gal_screen->dpi) < 0)
-        __gal_screen->dpi = GDCAP_DPI_DEFAULT;
-    else if (__gal_screen->dpi < GDCAP_DPI_MINIMAL)
-        __gal_screen->dpi = GDCAP_DPI_MINIMAL;
+#ifdef _MGRM_PROCESSES
+    if (mgIsServer)
+        __gal_screen->dpi = get_dpi_from_etc (engine);
+    else
+        __gal_screen->dpi = SHAREDRES_VIDEO_DPI;
+#else   /* defined _MGRM_PROCESSES */
+    __gal_screen->dpi = get_dpi_from_etc (engine);
+#endif /* not defined _MGRM_PROCESSES */
 
     for (i = 0; i < 17; i++) {
         SysPixelIndex [i] = GAL_MapRGB (__gal_screen->format, 

src/newgal/surface.c

@@ -160,6 +160,12 @@ GAL_Surface * GAL_CreateRGBSurface (Uint32 flags,
             surface->flags &= ~GAL_HWSURFACE;
         }
     }
+    else {
+        /* set a static buff to pixels for empty surface */
+        static char buff[8];
+        surface->flags |= GAL_PREALLOC;
+        surface->pixels = buff;
+    }
 
     /* Allocate an empty mapping */
     surface->map = GAL_AllocBlitMap();

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

@@ -175,7 +175,7 @@ static BOOL RestrictControlECRGNEx (RECT* minimal,
             rc.bottom = (maskrect + idx)->bottom + pCtrl->top + off_y;
             AddClipRect (ergn, &rc);
             idx = (maskrect + idx)->next;
-        }while (idx != 0);
+        } while (idx != 0);
 
         IntersectClipRect (ergn, minimal);
     }
@@ -467,7 +467,6 @@ BOOL dc_GenerateECRgn(PDC pdc, BOOL fForce)
     PCLIPRECT pcr;
     PCONTROL pCtrl;
     RECT minimal;
-    CLIPRGN ergn;
 
     /* is global clip region is empty? */
     if ((!fForce) && (!dc_IsVisible (pdc)))
@@ -522,6 +521,7 @@ BOOL dc_GenerateECRgn(PDC pdc, BOOL fForce)
         pCtrl = gui_Control (pdc->hwnd);
 
         if (pCtrl && !(pCtrl->dwExStyle & WS_EX_CTRLASMAINWIN)) {
+            CLIPRGN ergn;
             InitClipRgn (&ergn, &__mg_FreeClipRectList);
             if (RestrictControlECRGNEx (&minimal, pCtrl, &ergn)) {
                 ClipRgnIntersect (&pdc->ecrgn, &pdc->ecrgn, &ergn);
@@ -530,6 +530,7 @@ BOOL dc_GenerateECRgn(PDC pdc, BOOL fForce)
             else {
                 EmptyClipRgn (&pdc->ecrgn);
             }
+            EmptyClipRgn (&ergn);
         }
         else {
             IntersectClipRect (&pdc->ecrgn, &minimal);
@@ -1728,7 +1729,6 @@ static CB_COMP_SETPIXEL draw_pixel_ops [NR_ROPS][NR_PIXEL_LEN] =
 static void dc_InitDC (PDC pdc, HWND hWnd, BOOL bIsClient)
 {
     PCONTROL pCtrl;
-    CLIPRGN ergn;
 
     pdc->hwnd = hWnd;
 
@@ -1793,8 +1793,8 @@ static void dc_InitDC (PDC pdc, HWND hWnd, BOOL bIsClient)
 
         pCtrl = gui_Control (pdc->hwnd);
 
-        if (pCtrl && !(pCtrl->dwExStyle & WS_EX_CTRLASMAINWIN))
-        {
+        if (pCtrl && !(pCtrl->dwExStyle & WS_EX_CTRLASMAINWIN)) {
+            CLIPRGN ergn;
             InitClipRgn (&ergn, &__mg_FreeClipRectList);
 
             if (RestrictControlECRGNEx (&minimal, pCtrl, &ergn)) {
@@ -1804,6 +1804,8 @@ static void dc_InitDC (PDC pdc, HWND hWnd, BOOL bIsClient)
             else {
                 EmptyClipRgn (&pdc->ecrgn);
             }
+
+            EmptyClipRgn (&ergn);
         }
         else {
             IntersectClipRect (&pdc->ecrgn, &minimal);
@@ -2107,7 +2109,6 @@ void GUIAPI ReleaseDC (HDC hDC)
     if (pWin && pWin->privCDC == hDC) {
         RECT minimal;
         PCONTROL pCtrl;
-        CLIPRGN ergn;
 
         /* for private DC, we reset the clip region info. */
         /* houhh 20090113, for private dc with secondaryDC, pGCRInfo is NULL. */
@@ -2127,6 +2128,7 @@ void GUIAPI ReleaseDC (HDC hDC)
 
             pCtrl = gui_Control (pdc->hwnd);
             if (pCtrl && !(pCtrl->dwExStyle & WS_EX_CTRLASMAINWIN)) {
+                CLIPRGN ergn;
                 InitClipRgn (&ergn, &__mg_FreeClipRectList);
                 if (RestrictControlECRGNEx (&minimal, pCtrl, &ergn)) {
                     ClipRgnIntersect (&pdc->ecrgn, &pdc->ecrgn, &ergn);
@@ -2135,6 +2137,7 @@ void GUIAPI ReleaseDC (HDC hDC)
                 else {
                     EmptyClipRgn (&pdc->ecrgn);
                 }
+                EmptyClipRgn (&ergn);
             }
             else {
                 IntersectClipRect (&pdc->ecrgn, &minimal);
@@ -2574,7 +2577,6 @@ BOOL dc_GenerateMemDCECRgn(PDC pdc, BOOL fForce)
 {
     PCONTROL pCtrl;
     RECT minimal;
-    CLIPRGN ergn;
     PCLIPRECT pcr;
 
     /* is global clip region is empty? */
@@ -2610,6 +2612,7 @@ BOOL dc_GenerateMemDCECRgn(PDC pdc, BOOL fForce)
         /* restrict control's effective region. */
         pCtrl = gui_Control (pdc->hwnd);
         if (pCtrl && !(pCtrl->dwExStyle & WS_EX_CTRLASMAINWIN)) {
+            CLIPRGN ergn;
             InitClipRgn (&ergn, &__mg_FreeClipRectList);
 
             if (RestrictControlMemDCECRGNEx (&minimal, pCtrl, &ergn)) {
@@ -2619,6 +2622,7 @@ BOOL dc_GenerateMemDCECRgn(PDC pdc, BOOL fForce)
             else {
                 EmptyClipRgn (&pdc->ecrgn);
             }
+            EmptyClipRgn (&ergn);
         }
         else {
             IntersectClipRect (&pdc->ecrgn, &minimal);
@@ -2642,7 +2646,6 @@ HDC GetSecondarySubDC (HDC secondary_dc, HWND hwnd_child, BOOL client)
     int off_x, off_y;
     PCONTROL pCtrl;
     RECT minimal;
-    CLIPRGN ergn;
 
     pdc_parent = dc_HDC2PDC (secondary_dc);
 
@@ -2716,6 +2719,7 @@ HDC GetSecondarySubDC (HDC secondary_dc, HWND hwnd_child, BOOL client)
     pCtrl = gui_Control (pdc->hwnd);
 
     if (pCtrl && !(pCtrl->dwExStyle & WS_EX_CTRLASMAINWIN)) {
+        CLIPRGN ergn;
         InitClipRgn (&ergn, &__mg_FreeClipRectList);
 
         if (RestrictControlMemDCECRGNEx (&minimal, pCtrl, &ergn)) {
@@ -2725,6 +2729,7 @@ HDC GetSecondarySubDC (HDC secondary_dc, HWND hwnd_child, BOOL client)
         else {
             EmptyClipRgn (&pdc->ecrgn);
         }
+        EmptyClipRgn (&ergn);
     }
     else {
         IntersectClipRect (&pdc->ecrgn, &minimal);
@@ -3754,10 +3759,7 @@ MG_EXPORT GHANDLE GetVideoHandle (HDC hdc)
 
 #ifdef _MGGAL_DRM
 
-/* implemented in DRI engine. */
-BOOL __drm_get_surface_info (GAL_Surface *surface, DrmSurfaceInfo* info);
-
-MG_EXPORT BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info)
+BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info)
 {
     PDC pdc = dc_HDC2PDC (hdc);
     if (pdc->surface->video != (GHANDLE)video)
@@ -3766,14 +3768,8 @@ MG_EXPORT BOOL drmGetSurfaceInfo (GHANDLE video, HDC hdc, DrmSurfaceInfo* info)
     return __drm_get_surface_info(pdc->surface, info);
 }
 
-/* implemented in DRI engine. */
-GAL_Surface* __drm_create_surface_from_name (GHANDLE video,
-            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)
+HDC drmCreateDCFromNameEx (GHANDLE video, uint32_t name, uint32_t drm_format,
+        off_t offset, uint32_t width, uint32_t height, uint32_t pitch)
 {
     PDC pmem_dc = NULL;
     GAL_Surface* surface;
@@ -3783,7 +3779,7 @@ 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 +3793,14 @@ 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 +3813,9 @@ MG_EXPORT HDC drmCreateDCFromName (GHANDLE video,
     return (HDC)pmem_dc;
 }
 
-/* implemented in DRI engine. */
-GAL_Surface* __drm_create_surface_from_handle (GHANDLE video,
-            uint32_t handle, unsigned long size, uint32_t drm_format,
-            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)
+HDC drmCreateDCFromHandleEx (GHANDLE video, uint32_t handle, size_t size,
+        uint32_t drm_format, off_t offset,
+        uint32_t width, uint32_t height, uint32_t pitch)
 {
     PDC pmem_dc = NULL;
     GAL_Surface* surface;
@@ -3836,7 +3825,7 @@ 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 +3839,14 @@ 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 +3859,9 @@ MG_EXPORT HDC drmCreateDCFromHandle (GHANDLE video,
     return (HDC)pmem_dc;
 }
 
-/* implemented in DRI engine. */
-GAL_Surface* __drm_create_surface_from_prime_fd (GHANDLE video,
-            int prime_fd, unsigned long size, uint32_t drm_format,
-            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)
+HDC drmCreateDCFromPrimeFdEx (GHANDLE video, int prime_fd, size_t size,
+        uint32_t drm_format, off_t offset,
+        uint32_t width, uint32_t height, uint32_t pitch)
 {
     PDC pmem_dc = NULL;
     GAL_Surface* surface;
@@ -3887,9 +3869,12 @@ 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 +3888,14 @@ 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 +3908,4 @@ MG_EXPORT HDC drmCreateDCFromPrimeFd (GHANDLE video,
     return (HDC)pmem_dc;
 }
 
-#endif
+#endif  /* _MGGAL_DRM */

src/server/layer.c

@@ -11,41 +11,41 @@
 //
 //////////////////////////////////////////////////////////////////////////////
 /*
- *   This file is part of MiniGUI, a mature cross-platform windowing 
+ *   This file is part of MiniGUI, a mature cross-platform windowing
  *   and Graphics User Interface (GUI) support system for embedded systems
  *   and smart IoT devices.
- * 
+ *
  *   Copyright (C) 2002~2018, Beijing FMSoft Technologies Co., Ltd.
  *   Copyright (C) 1998~2002, WEI Yongming
- * 
+ *
  *   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
  *   the Free Software Foundation, either version 3 of the License, or
  *   (at your option) any later version.
- * 
+ *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
- * 
+ *
  *   You should have received a copy of the GNU General Public License
  *   along with this program.  If not, see <http://www.gnu.org/licenses/>.
- * 
+ *
  *   Or,
- * 
+ *
  *   As this program is a library, any link to this program must follow
  *   GNU General Public License version 3 (GPLv3). If you cannot accept
  *   GPLv3, you need to be licensed from FMSoft.
- * 
+ *
  *   If you have got a commercial license of this program, please use it
  *   under the terms and conditions of the commercial license.
- * 
+ *
  *   For more information about the commercial license, please refer to
  *   <http://www.minigui.com/blog/minigui-licensing-policy/>.
  */
 /*
 ** layer.c: maintain the layers in server.
-** 
+**
 ** Current maintainer: Wei Yongming.
 **
 ** Create date: 2005/08/14
@@ -83,7 +83,7 @@ ON_CHANGE_LAYER OnChangeLayer = NULL;
 static int sg_nr_layers = 0;
 static unsigned char sem_usage [(MAX_NR_LAYERS + 7)/8];
 
-static BOOL do_alloc_layer (MG_Layer* layer, const char* name, 
+static BOOL do_alloc_layer (MG_Layer* layer, const char* name,
                 int nr_topmosts, int nr_normals)
 {
     ZORDERINFO* zi;
@@ -97,10 +97,10 @@ static BOOL do_alloc_layer (MG_Layer* layer, const char* name,
 
     /* Attach to the share memory. */
     zi = shmat (layer->zorder_shmid, 0, 0);
-    if (zi == (void*)-1) 
+    if (zi == (void*)-1)
         return FALSE;
 
-    if (shmctl (layer->zorder_shmid, IPC_RMID, NULL) < 0) 
+    if (shmctl (layer->zorder_shmid, IPC_RMID, NULL) < 0)
         return FALSE;
 
     strcpy (layer->name, name);
@@ -148,7 +148,7 @@ static BOOL do_alloc_layer (MG_Layer* layer, const char* name,
     memset (maskrect_usage_bmp, 0xFF, zi->size_maskrect_usage_bmp);
 
     /* init z-order node for desktop */
-    znodes = (ZORDERNODE*) ((char*)(zi + 1) + zi->size_usage_bmp + 
+    znodes = (ZORDERNODE*) ((char*)(zi + 1) + zi->size_usage_bmp +
                     sizeof (ZORDERNODE) * DEF_NR_POPUPMENUS);
 
     znodes [0].flags = ZOF_TYPE_DESKTOP | ZOF_VISIBLE;
@@ -239,11 +239,6 @@ BOOL __mg_is_valid_layer (MG_Layer* layer)
     return FALSE;
 }
 
-inline static key_t get_sem_key (void)
-{
-    return (key_t)(IPC_KEY_BASE + 0x03);
-}
-
 void __mg_delete_zi_sem (void)
 {
     union semun ignored;
@@ -268,11 +263,11 @@ int __mg_init_layers ()
 
     memset (sem_usage, 0xFF, sizeof (sem_usage));
 
-    if ((sem_key = get_sem_key ()) == -1) {
+    if ((sem_key = get_sem_key_for_layers ()) == -1) {
         return -1;
     }
 
-    semid = semget (sem_key, MAX_NR_LAYERS, SEM_PARAM | IPC_CREAT | IPC_EXCL); 
+    semid = semget (sem_key, MAX_NR_LAYERS, SEM_PARAM | IPC_CREAT | IPC_EXCL);
     if (semid == -1)
         return -1;
     atexit (__mg_delete_zi_sem);
@@ -280,7 +275,7 @@ int __mg_init_layers ()
     SHAREDRES_SEMID_LAYER = semid;
 
     /* allocate the first layer for the default layer. */
-    if (!do_alloc_layer (mgLayers, NAME_DEF_LAYER, 
+    if (!do_alloc_layer (mgLayers, NAME_DEF_LAYER,
                     SHAREDRES_DEF_NR_TOPMOSTS, SHAREDRES_DEF_NR_NORMALS)) {
 
         free (mgLayers);
@@ -349,18 +344,18 @@ static MG_Layer* alloc_layer (const char* layer_name,
 
     mgTopmostLayer = new_layer;
 
-    _WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n", 
+    _WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n",
             mgTopmostLayer->zorder_info);
 
     /* Topmost layer changed */
     CHANGE_TOPMOST_LAYER(mgTopmostLayer);
 
     __mg_do_change_topmost_layer ();
-    _WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n", 
+    _WRN_PRINTF ("SERVER: alloc_layer, mgTopmostLayer->zi = %p\n",
             mgTopmostLayer->zorder_info);
 
     /* Notify that a new topmost layer have been set. */
-    if (OnChangeLayer) 
+    if (OnChangeLayer)
         OnChangeLayer (LCO_TOPMOST_CHANGED, mgTopmostLayer, NULL);
 
     PostMessage (HWND_DESKTOP, MSG_ERASEDESKTOP, 0, 0);
@@ -421,7 +416,7 @@ void __mg_get_layer_info (int cli, const char* layer_name, LAYERINFO* info)
     }
 }
 
-static void do_client_join_layer (int cli, 
+static void do_client_join_layer (int cli,
                 const JOINLAYERINFO* info, JOINEDCLIENTINFO* joined_info)
 {
     MG_Layer* layer = (MG_Layer*)(joined_info->layer);
@@ -433,11 +428,11 @@ static void do_client_join_layer (int cli,
         return;
     }
 
-    _WRN_PRINTF ("SERVER: Join a client (%s) to layer %s\n", 
+    _WRN_PRINTF ("SERVER: Join a client (%s) to layer %s\n",
                 info->client_name, layer->name);
 
     strcpy (new_client->name, info->client_name);
-    
+
     new_client->layer = layer;
 
     /* Notify that a new client joined to this layer. */
@@ -455,13 +450,13 @@ static void do_client_join_layer (int cli,
 }
 
 /* Join a client to a layer, the server side of JoinLayer */
-void __mg_client_join_layer (int cli, 
+void __mg_client_join_layer (int cli,
                 const JOINLAYERINFO* info, JOINEDCLIENTINFO* joined_info)
 {
     MG_Layer* layer;
 
     if ((layer = __mg_find_layer_by_name (info->layer_name)) == NULL) {
-        layer = alloc_layer (info->layer_name, 
+        layer = alloc_layer (info->layer_name,
             (info->max_nr_topmosts <= 0)?SHAREDRES_DEF_NR_TOPMOSTS:
                     info->max_nr_topmosts,
             (info->max_nr_normals<= 0)?SHAREDRES_DEF_NR_NORMALS:
@@ -512,7 +507,7 @@ BOOL GUIAPI ServerSetTopmostLayer (MG_Layer* layer)
     return TRUE;
 }
 
-MG_Layer* GUIAPI ServerCreateLayer (const char* layer_name, 
+MG_Layer* GUIAPI ServerCreateLayer (const char* layer_name,
                 int max_nr_topmosts, int max_nr_normals)
 {
     MG_Layer* new_layer;
@@ -604,7 +599,7 @@ int GUIAPI ServerGetNextZNode (MG_Layer* layer, int idx_znode, int* cli)
         return -1;
 
     zi = (ZORDERINFO*)layer->zorder_info;
-    if (idx_znode > zi->max_nr_globals 
+    if (idx_znode > zi->max_nr_globals
             + zi->max_nr_topmosts + zi->max_nr_normals) {
         return -1;
     }
@@ -680,7 +675,7 @@ BOOL GUIAPI ServerGetZNodeInfo (MG_Layer* layer, int idx_znode,
         return FALSE;
 
     zi = (ZORDERINFO*)layer->zorder_info;
-    if (idx_znode > zi->max_nr_globals 
+    if (idx_znode > zi->max_nr_globals
             + zi->max_nr_topmosts + zi->max_nr_normals) {
         return FALSE;
     }
@@ -713,7 +708,7 @@ BOOL GUIAPI ServerDoZNodeOperation (MG_Layer* layer,
         return FALSE;
 
     zi = (ZORDERINFO*)layer->zorder_info;
-    if (idx_znode > zi->max_nr_globals 
+    if (idx_znode > zi->max_nr_globals
             + zi->max_nr_topmosts + zi->max_nr_normals) {
         return FALSE;
     }

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)

src/server/server.c

@@ -166,21 +166,30 @@ static void ParseEvent (PMSGQUEUE msg_que, int event)
         case ME_LEFTDOWN:
             Msg.message = MSG_LBUTTONDOWN;
             break;
-        case ME_RIGHTDOWN:
-            Msg.message = MSG_RBUTTONDOWN;
-            break;
         case ME_LEFTUP:
             Msg.message = MSG_LBUTTONUP;
             break;
         case ME_LEFTDBLCLICK:
             Msg.message = MSG_LBUTTONDBLCLK;
             break;
+        case ME_RIGHTDOWN:
+            Msg.message = MSG_RBUTTONDOWN;
+            break;
         case ME_RIGHTUP:
             Msg.message = MSG_RBUTTONUP;
             break;
         case ME_RIGHTDBLCLICK:
             Msg.message = MSG_RBUTTONDBLCLK;
             break;
+        case ME_MIDDLEDOWN:
+            Msg.message = MSG_MBUTTONDOWN;
+            break;
+        case ME_MIDDLEUP:
+            Msg.message = MSG_MBUTTONUP;
+            break;
+        case ME_MIDDLEDBLCLICK:
+            Msg.message = MSG_MBUTTONDBLCLK;
+            break;
         }
 
         if (__mg_do_drag_drop_window (Msg.message, me->x, me->y)) {

src/standalone/standalone.c

@@ -162,6 +162,15 @@ static void ParseEvent (PMSGQUEUE msg_que, int event)
         case ME_RIGHTDBLCLICK:
             Msg.message = MSG_RBUTTONDBLCLK;
             break;
+        case ME_MIDDLEDOWN:
+            Msg.message = MSG_MBUTTONDOWN;
+            break;
+        case ME_MIDDLEUP:
+            Msg.message = MSG_MBUTTONUP;
+            break;
+        case ME_MIDDLEDBLCLICK:
+            Msg.message = MSG_MBUTTONDBLCLK;
+            break;
         }
 
         Msg.lParam = MAKELONG (me->x, me->y);

src/sysres/cursor/cursors.c

@@ -74,7 +74,7 @@ const int __mg_cursors_offset [] = {
   766*11 + 326*9 + 518*2,
 };
 
-const const unsigned char __mg_cursors_data[] = {
+const unsigned char __mg_cursors_data[] = {
 #ifdef __TARGET_FMSOFT__
   0x00, 0x00, 0x02, 0x00, 0x01, 0x00, 0x20, 0x20,
   0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xe8, 0x02,

src/sysres/incoreres.c

@@ -85,9 +85,9 @@
 BOOL sysres_init_inner_resource()
 {
 #ifdef _MGINCORE_RES
-    AddInnerRes(__mgir_bmp_inner_res, TABLESIZE(__mgir_bmp_inner_res), FALSE);
-    AddInnerRes(__mgir_icon_inner_res, TABLESIZE(__mgir_icon_inner_res),FALSE);
-    AddInnerRes(__mgir_font_inner_res, TABLESIZE(__mgir_font_inner_res),FALSE);
+    AddInnerRes((INNER_RES*)__mgir_bmp_inner_res, TABLESIZE(__mgir_bmp_inner_res), FALSE);
+    AddInnerRes((INNER_RES*)__mgir_icon_inner_res, TABLESIZE(__mgir_icon_inner_res),FALSE);
+    AddInnerRes((INNER_RES*)__mgir_font_inner_res, TABLESIZE(__mgir_font_inner_res),FALSE);
 #endif
     return TRUE;
 }